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-############################################################################### - -Project: "CxImage"=.\CxImage.dsp - Package Owner=<4> - -Package=<5> -{{{ -}}} - -Package=<4> -{{{ -}}} - -############################################################################### - -Global: - -Package=<5> -{{{ -}}} - -Package=<3> -{{{ -}}} - -############################################################################### - diff --git a/src/3rdParty/CxImage/CxImage/cximage.vcproj b/src/3rdParty/CxImage/CxImage/cximage.vcproj deleted file mode 100644 index 1decf47a27..0000000000 --- a/src/3rdParty/CxImage/CxImage/cximage.vcproj +++ /dev/null @@ -1,3086 +0,0 @@ - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - diff --git a/src/3rdParty/CxImage/CxImage/license.txt b/src/3rdParty/CxImage/CxImage/license.txt deleted file mode 100644 index 8cf0659845..0000000000 --- a/src/3rdParty/CxImage/CxImage/license.txt +++ /dev/null @@ -1,48 +0,0 @@ -This copy of the CxImage notices is provided for your convenience. In case of -any discrepancy between this copy and the notices in the file ximage.h that is -included in the CxImage distribution, the latter shall prevail. - -If you modify CxImage you may insert additional notices immediately following -this sentence. - --------------------------------------------------------------------------------- - -COPYRIGHT NOTICE, DISCLAIMER, and LICENSE: - -CxImage version 6.0.0 02/Feb/2008 - -CxImage : Copyright (C) 2001 - 2008, Davide Pizzolato - -Original CImage and CImageIterator implementation are: -Copyright (C) 1995, Alejandro Aguilar Sierra (asierra(at)servidor(dot)unam(dot)mx) - -Covered code is provided under this license on an "as is" basis, without warranty -of any kind, either expressed or implied, including, without limitation, warranties -that the covered code is free of defects, merchantable, fit for a particular purpose -or non-infringing. The entire risk as to the quality and performance of the covered -code is with you. Should any covered code prove defective in any respect, you (not -the initial developer or any other contributor) assume the cost of any necessary -servicing, repair or correction. This disclaimer of warranty constitutes an essential -part of this license. No use of any covered code is authorized hereunder except under -this disclaimer. - -Permission is hereby granted to use, copy, modify, and distribute this -source code, or portions hereof, for any purpose, including commercial applications, -freely and without fee, subject to the following restrictions: - -1. The origin of this software must not be misrepresented; you must not -claim that you wrote the original software. If you use this software -in a product, an acknowledgment in the product documentation would be -appreciated but is not required. - -2. Altered source versions must be plainly marked as such, and must not be -misrepresented as being the original software. - -3. This notice may not be removed or altered from any source distribution. - --------------------------------------------------------------------------------- - -Other information: about CxImage, and the latest version, can be found at the -CxImage home page: http://www.xdp.it - --------------------------------------------------------------------------------- diff --git a/src/3rdParty/CxImage/CxImage/tif_xfile.cpp b/src/3rdParty/CxImage/CxImage/tif_xfile.cpp deleted file mode 100644 index 98c83c1bf5..0000000000 --- a/src/3rdParty/CxImage/CxImage/tif_xfile.cpp +++ /dev/null @@ -1,218 +0,0 @@ -/* - * TIFF file IO, using CxFile. - */ - -#ifdef WIN32 - #include -#endif -#include - -#include "ximage.h" - -#if CXIMAGE_SUPPORT_TIF - -#include "../tiff/tiffiop.h" - -#include "xfile.h" - -static tsize_t -_tiffReadProcEx(thandle_t fd, tdata_t buf, tsize_t size) -{ - return (tsize_t)((CxFile*)fd)->Read(buf, 1, size); -} - -static tsize_t -_tiffWriteProcEx(thandle_t fd, tdata_t buf, tsize_t size) -{ - return (tsize_t)((CxFile*)fd)->Write(buf, 1, size); -} - -static toff_t -_tiffSeekProcEx(thandle_t fd, toff_t off, int whence) -{ - if ( off == 0xFFFFFFFF ) - return 0xFFFFFFFF; - if (!((CxFile*)fd)->Seek(off, whence)) - return 0xFFFFFFFF; - if (whence == SEEK_SET) - return off; - - return (toff_t)((CxFile*)fd)->Tell(); -} - -// Return nonzero if error -static int -_tiffCloseProcEx(thandle_t /*fd*/) -{ -// return !((CxFile*)fd)->Close(); // "//" needed for memory files - return 0; -} - -#include - -static toff_t -_tiffSizeProcEx(thandle_t fd) -{ - return ((CxFile*)fd)->Size(); -} - -static int -_tiffMapProcEx(thandle_t /*fd*/, tdata_t* /*pbase*/, toff_t* /*psize*/) -{ - return (0); -} - -static void -_tiffUnmapProcEx(thandle_t /*fd*/, tdata_t /*base*/, toff_t /*size*/) -{ -} - -// Open a TIFF file descriptor for read/writing. -/* -TIFF* -TIFFOpen(const char* name, const char* mode) -{ - static const char module[] = "TIFFOpen"; - FILE* stream = fopen(name, mode); - if (stream == NULL) - { - TIFFError(module, "%s: Cannot open", name); - return NULL; - } - return (TIFFFdOpen((int)stream, name, mode)); -} -*/ - -TIFF* -_TIFFFdOpen(void* fd, const char* name, const char* mode) -{ - TIFF* tif; - - tif = TIFFClientOpen(name, mode, - (thandle_t) fd, - _tiffReadProcEx, _tiffWriteProcEx, _tiffSeekProcEx, _tiffCloseProcEx, - _tiffSizeProcEx, _tiffMapProcEx, _tiffUnmapProcEx); - if (tif) - tif->tif_fd = fd; - return (tif); -} - -extern "C" TIFF* _TIFFOpenEx(CxFile* stream, const char* mode) -{ - return (_TIFFFdOpen(stream, "TIFF IMAGE", mode)); -} - -#ifdef __GNUC__ -extern char* malloc(); -extern char* realloc(); -#else -#include -#endif - -tdata_t -_TIFFmalloc(tsize_t s) -{ - return (malloc((size_t) s)); -} - -void -_TIFFfree(tdata_t p) -{ - free(p); -} - -tdata_t -_TIFFrealloc(tdata_t p, tsize_t s) -{ - return (realloc(p, (size_t) s)); -} - -void -_TIFFmemset(tdata_t p, int v, tsize_t c) -{ - memset(p, v, (size_t) c); -} - -void -_TIFFmemcpy(tdata_t d, const tdata_t s, tsize_t c) -{ - memcpy(d, s, (size_t) c); -} - -int -_TIFFmemcmp(const tdata_t p1, const tdata_t p2, tsize_t c) -{ - return (memcmp(p1, p2, (size_t) c)); -} - -#ifndef UNICODE -#define DbgPrint wvsprintf -#define DbgPrint2 wsprintf -#define DbgMsgBox MessageBox -#else -#define DbgPrint wvsprintfA -#define DbgPrint2 wsprintfA -#define DbgMsgBox MessageBoxA -#endif - -static void -Win32WarningHandler(const char* module, const char* fmt, va_list ap) -{ -#ifdef _DEBUG -#if (!defined(_CONSOLE) && !defined(_WIN32_WCE) && defined(WIN32)) - LPSTR szTitle; - LPSTR szTmp; - LPCSTR szTitleText = "%s Warning"; - LPCSTR szDefaultModule = "TIFFLIB"; - szTmp = (module == NULL) ? (LPSTR)szDefaultModule : (LPSTR)module; - if ((szTitle = (LPSTR)LocalAlloc(LMEM_FIXED, (strlen(szTmp) + - strlen(szTitleText) + strlen(fmt) + 128))) == NULL) - return; - DbgPrint2(szTitle, szTitleText, szTmp); - szTmp = szTitle + (strlen(szTitle)+2); - DbgPrint(szTmp, fmt, ap); - DbgMsgBox(GetFocus(), szTmp, szTitle, MB_OK | MB_ICONINFORMATION); - LocalFree(szTitle); - return; -#else - if (module != NULL) - fprintf(stderr, "%s: ", module); - fprintf(stderr, "Warning, "); - vfprintf(stderr, fmt, ap); - fprintf(stderr, ".\n"); -#endif -#endif -} -TIFFErrorHandler _TIFFwarningHandler = Win32WarningHandler; - -static void -Win32ErrorHandler(const char* module, const char* fmt, va_list ap) -{ -#ifdef _DEBUG -#if (!defined(_CONSOLE) && !defined(_WIN32_WCE) && defined(WIN32)) - LPSTR szTitle; - LPSTR szTmp; - LPCSTR szTitleText = "%s Error"; - LPCSTR szDefaultModule = "TIFFLIB"; - szTmp = (module == NULL) ? (LPSTR)szDefaultModule : (LPSTR)module; - if ((szTitle = (LPSTR)LocalAlloc(LMEM_FIXED, (strlen(szTmp) + - strlen(szTitleText) + strlen(fmt) + 128))) == NULL) - return; - DbgPrint2(szTitle, szTitleText, szTmp); - szTmp = szTitle + (strlen(szTitle)+2); - DbgPrint(szTmp, fmt, ap); - DbgMsgBox(GetFocus(), szTmp, szTitle, MB_OK | MB_ICONEXCLAMATION); - LocalFree(szTitle); - return; -#else - if (module != NULL) - fprintf(stderr, "%s: ", module); - vfprintf(stderr, fmt, ap); - fprintf(stderr, ".\n"); -#endif -#endif -} -TIFFErrorHandler _TIFFerrorHandler = Win32ErrorHandler; - -#endif - diff --git a/src/3rdParty/CxImage/CxImage/xfile.h b/src/3rdParty/CxImage/CxImage/xfile.h deleted file mode 100644 index c0e4e2239f..0000000000 --- a/src/3rdParty/CxImage/CxImage/xfile.h +++ /dev/null @@ -1,79 +0,0 @@ -/* - * File: xfile.h - * Purpose: General Purpose File Class - */ -/* - -------------------------------------------------------------------------------- - - COPYRIGHT NOTICE, DISCLAIMER, and LICENSE: - - CxFile (c) 11/May/2002 Davide Pizzolato - www.xdp.it - CxFile version 2.00 23/Aug/2002 - CxFile version 2.10 16/Dec/2007 - - Special thanks to Chris Shearer Cooper for new features, enhancements and bugfixes - - Covered code is provided under this license on an "as is" basis, without warranty - of any kind, either expressed or implied, including, without limitation, warranties - that the covered code is free of defects, merchantable, fit for a particular purpose - or non-infringing. The entire risk as to the quality and performance of the covered - code is with you. Should any covered code prove defective in any respect, you (not - the initial developer or any other contributor) assume the cost of any necessary - servicing, repair or correction. This disclaimer of warranty constitutes an essential - part of this license. No use of any covered code is authorized hereunder except under - this disclaimer. - - Permission is hereby granted to use, copy, modify, and distribute this - source code, or portions hereof, for any purpose, including commercial applications, - freely and without fee, subject to the following restrictions: - - 1. The origin of this software must not be misrepresented; you must not - claim that you wrote the original software. If you use this software - in a product, an acknowledgment in the product documentation would be - appreciated but is not required. - - 2. Altered source versions must be plainly marked as such, and must not be - misrepresented as being the original software. - - 3. This notice may not be removed or altered from any source distribution. - -------------------------------------------------------------------------------- - */ -#if !defined(__xfile_h) -#define __xfile_h - -#if defined (WIN32) || defined (_WIN32_WCE) - #include -#endif - -#include -#include - -#include "ximadef.h" - -class DLL_EXP CxFile -{ -public: - CxFile(void) { }; - virtual ~CxFile() { }; - - virtual bool Close() = 0; - virtual size_t Read(void *buffer, size_t size, size_t count) = 0; - virtual size_t Write(const void *buffer, size_t size, size_t count) = 0; - virtual bool Seek(long offset, int origin) = 0; - virtual long Tell() = 0; - virtual long Size() = 0; - virtual bool Flush() = 0; - virtual bool Eof() = 0; - virtual long Error() = 0; - virtual bool PutC(unsigned char c) - { - // Default implementation - size_t nWrote = Write(&c, 1, 1); - return (bool)(nWrote == 1); - } - virtual long GetC() = 0; - virtual char * GetS(char *string, int n) = 0; - virtual long Scanf(const char *format, void* output) = 0; -}; - -#endif //__xfile_h diff --git a/src/3rdParty/CxImage/CxImage/ximabmp.cpp b/src/3rdParty/CxImage/CxImage/ximabmp.cpp deleted file mode 100644 index 4793707bfa..0000000000 --- a/src/3rdParty/CxImage/CxImage/ximabmp.cpp +++ /dev/null @@ -1,444 +0,0 @@ -/* - * File: ximabmp.cpp - * Purpose: Platform Independent BMP Image Class Loader and Writer - * 07/Aug/2001 Davide Pizzolato - www.xdp.it - * CxImage version 6.0.0 02/Feb/2008 - */ - -#include "ximabmp.h" - -#if CXIMAGE_SUPPORT_BMP - -#include "ximaiter.h" - -//////////////////////////////////////////////////////////////////////////////// -#if CXIMAGE_SUPPORT_ENCODE -//////////////////////////////////////////////////////////////////////////////// -bool CxImageBMP::Encode(CxFile * hFile) -{ - - if (EncodeSafeCheck(hFile)) return false; - - BITMAPFILEHEADER hdr; - - hdr.bfType = 0x4d42; // 'BM' WINDOWS_BITMAP_SIGNATURE - hdr.bfSize = GetSize() + 14 /*sizeof(BITMAPFILEHEADER)*/; - hdr.bfReserved1 = hdr.bfReserved2 = 0; - hdr.bfOffBits = 14 /*sizeof(BITMAPFILEHEADER)*/ + head.biSize + GetPaletteSize(); - - hdr.bfType = ntohs(hdr.bfType); - hdr.bfSize = ntohl(hdr.bfSize); - hdr.bfOffBits = ntohl(hdr.bfOffBits); - -#if CXIMAGE_SUPPORT_ALPHA - if (GetNumColors()==0 && AlphaIsValid()){ - - BITMAPINFOHEADER infohdr; - memcpy(&infohdr,&head,sizeof(BITMAPINFOHEADER)); - infohdr.biCompression = BI_RGB; - infohdr.biBitCount = 32; - DWORD dwEffWidth = ((((infohdr.biBitCount * infohdr.biWidth) + 31) / 32) * 4); - infohdr.biSizeImage = dwEffWidth * infohdr.biHeight; - - hdr.bfSize = infohdr.biSize + infohdr.biSizeImage + 14 /*sizeof(BITMAPFILEHEADER)*/; - - hdr.bfSize = ntohl(hdr.bfSize); - bihtoh(&infohdr); - - // Write the file header - hFile->Write(&hdr,min(14,sizeof(BITMAPFILEHEADER)),1); - hFile->Write(&infohdr,sizeof(BITMAPINFOHEADER),1); - //and DIB+ALPHA interlaced - BYTE *srcalpha = AlphaGetPointer(); - for(long y = 0; y < infohdr.biHeight; ++y){ - BYTE *srcdib = GetBits(y); - for(long x = 0; x < infohdr.biWidth; ++x){ - hFile->Write(srcdib,3,1); - hFile->Write(srcalpha,1,1); - srcdib += 3; - ++srcalpha; - } - } - - } else -#endif //CXIMAGE_SUPPORT_ALPHA - { - // Write the file header - hFile->Write(&hdr,min(14,sizeof(BITMAPFILEHEADER)),1); - //copy attributes - memcpy(pDib,&head,sizeof(BITMAPINFOHEADER)); - bihtoh((BITMAPINFOHEADER*)pDib); - // Write the DIB header and the pixels - hFile->Write(pDib,GetSize(),1); - bihtoh((BITMAPINFOHEADER*)pDib); - } - return true; -} -//////////////////////////////////////////////////////////////////////////////// -#endif //CXIMAGE_SUPPORT_ENCODE -//////////////////////////////////////////////////////////////////////////////// -#if CXIMAGE_SUPPORT_DECODE -//////////////////////////////////////////////////////////////////////////////// -bool CxImageBMP::Decode(CxFile * hFile) -{ - if (hFile == NULL) return false; - - BITMAPFILEHEADER bf; - DWORD off = hFile->Tell(); // - cx_try { - if (hFile->Read(&bf,min(14,sizeof(bf)),1)==0) cx_throw("Not a BMP"); - - bf.bfSize = ntohl(bf.bfSize); - bf.bfOffBits = ntohl(bf.bfOffBits); - - if (bf.bfType != BFT_BITMAP) { //do we have a RC HEADER? - bf.bfOffBits = 0L; - hFile->Seek(off,SEEK_SET); - } - - BITMAPINFOHEADER bmpHeader; - if (!DibReadBitmapInfo(hFile,&bmpHeader)) cx_throw("Error reading BMP info"); - DWORD dwCompression=bmpHeader.biCompression; - DWORD dwBitCount=bmpHeader.biBitCount; //preserve for BI_BITFIELDS compression - bool bIsOldBmp = bmpHeader.biSize == sizeof(BITMAPCOREHEADER); - - bool bTopDownDib = bmpHeader.biHeight<0; // check if it's a top-down bitmap - if (bTopDownDib) bmpHeader.biHeight=-bmpHeader.biHeight; - - if (info.nEscape == -1) { - // Return output dimensions only - head.biWidth = bmpHeader.biWidth; - head.biHeight = bmpHeader.biHeight; - info.dwType = CXIMAGE_FORMAT_BMP; - cx_throw("output dimensions returned"); - } - - if (!Create(bmpHeader.biWidth,bmpHeader.biHeight,bmpHeader.biBitCount,CXIMAGE_FORMAT_BMP)) - cx_throw(""); - - SetXDPI((long) floor(bmpHeader.biXPelsPerMeter * 254.0 / 10000.0 + 0.5)); - SetYDPI((long) floor(bmpHeader.biYPelsPerMeter * 254.0 / 10000.0 + 0.5)); - - if (info.nEscape) cx_throw("Cancelled"); // - cancel decoding - - RGBQUAD *pRgb = GetPalette(); - if (pRgb){ - if (bIsOldBmp){ - // convert a old color table (3 byte entries) to a new - // color table (4 byte entries) - hFile->Read((void*)pRgb,DibNumColors(&bmpHeader) * sizeof(RGBTRIPLE),1); - for (int i=DibNumColors(&head)-1; i>=0; i--){ - pRgb[i].rgbRed = ((RGBTRIPLE *)pRgb)[i].rgbtRed; - pRgb[i].rgbBlue = ((RGBTRIPLE *)pRgb)[i].rgbtBlue; - pRgb[i].rgbGreen = ((RGBTRIPLE *)pRgb)[i].rgbtGreen; - pRgb[i].rgbReserved = (BYTE)0; - } - } else { - hFile->Read((void*)pRgb,DibNumColors(&bmpHeader) * sizeof(RGBQUAD),1); - //force rgbReserved=0, to avoid problems with some WinXp bitmaps - for (unsigned int i=0; i - cancel decoding - - switch (dwBitCount) { - case 32 : - DWORD bfmask[3]; - if (dwCompression == BI_BITFIELDS) - { - hFile->Read(bfmask, 12, 1); - } else { - bfmask[0]=0x00FF0000; - bfmask[1]=0x0000FF00; - bfmask[2]=0x000000FF; - } - if (bf.bfOffBits != 0L) hFile->Seek(off + bf.bfOffBits,SEEK_SET); - if (dwCompression == BI_BITFIELDS || dwCompression == BI_RGB){ - long imagesize=4*head.biHeight*head.biWidth; - BYTE* buff32=(BYTE*)malloc(imagesize); - if (buff32){ - hFile->Read(buff32, imagesize,1); // read in the pixels - -#if CXIMAGE_SUPPORT_ALPHA - if (dwCompression == BI_RGB){ - AlphaCreate(); - if (AlphaIsValid()){ - bool bAlphaOk = false; - BYTE* p; - for (long y=0; ySeek(off + bf.bfOffBits,SEEK_SET); - if (dwCompression == BI_RGB){ - hFile->Read(info.pImage, head.biSizeImage,1); // read in the pixels - } else cx_throw("unknown compression"); - break; - case 16 : - { - DWORD bfmask[3]; - if (dwCompression == BI_BITFIELDS) - { - hFile->Read(bfmask, 12, 1); - } else { - bfmask[0]=0x7C00; bfmask[1]=0x3E0; bfmask[2]=0x1F; //RGB555 - } - // bf.bfOffBits required after the bitfield mask - if (bf.bfOffBits != 0L) hFile->Seek(off + bf.bfOffBits,SEEK_SET); - // read in the pixels - hFile->Read(info.pImage, head.biHeight*((head.biWidth+1)/2)*4,1); - // transform into RGB - Bitfield2RGB(info.pImage,bfmask[0],bfmask[1],bfmask[2],16); - break; - } - case 8 : - case 4 : - case 1 : - if (bf.bfOffBits != 0L) hFile->Seek(off + bf.bfOffBits,SEEK_SET); - switch (dwCompression) { - case BI_RGB : - hFile->Read(info.pImage, head.biSizeImage,1); // read in the pixels - break; - case BI_RLE4 : - { - BYTE status_byte = 0; - BYTE second_byte = 0; - int scanline = 0; - int bits = 0; - BOOL low_nibble = FALSE; - CImageIterator iter(this); - - for (BOOL bContinue = TRUE; bContinue && hFile->Read(&status_byte, sizeof(BYTE), 1);) { - - switch (status_byte) { - case RLE_COMMAND : - hFile->Read(&status_byte, sizeof(BYTE), 1); - switch (status_byte) { - case RLE_ENDOFLINE : - bits = 0; - scanline++; - low_nibble = FALSE; - break; - case RLE_ENDOFBITMAP : - bContinue=FALSE; - break; - case RLE_DELTA : - { - // read the delta values - BYTE delta_x; - BYTE delta_y; - hFile->Read(&delta_x, sizeof(BYTE), 1); - hFile->Read(&delta_y, sizeof(BYTE), 1); - // apply them - bits += delta_x / 2; - scanline += delta_y; - break; - } - default : - hFile->Read(&second_byte, sizeof(BYTE), 1); - BYTE *sline = iter.GetRow(scanline); - for (int i = 0; i < status_byte; i++) { - if ((BYTE*)(sline+bits) < (BYTE*)(info.pImage+head.biSizeImage)){ - if (low_nibble) { - if (i&1) - *(sline + bits) |= (second_byte & 0x0f); - else - *(sline + bits) |= (second_byte & 0xf0)>>4; - bits++; - } else { - if (i&1) - *(sline + bits) = (BYTE)(second_byte & 0x0f)<<4; - else - *(sline + bits) = (BYTE)(second_byte & 0xf0); - } - } - - if ((i & 1) && (i != (status_byte - 1))) - hFile->Read(&second_byte, sizeof(BYTE), 1); - - low_nibble = !low_nibble; - } - if ((((status_byte+1) >> 1) & 1 ) == 1) - hFile->Read(&second_byte, sizeof(BYTE), 1); - break; - }; - break; - default : - { - BYTE *sline = iter.GetRow(scanline); - hFile->Read(&second_byte, sizeof(BYTE), 1); - for (unsigned i = 0; i < status_byte; i++) { - if ((BYTE*)(sline+bits) < (BYTE*)(info.pImage+head.biSizeImage)){ - if (low_nibble) { - if (i&1) - *(sline + bits) |= (second_byte & 0x0f); - else - *(sline + bits) |= (second_byte & 0xf0)>>4; - bits++; - } else { - if (i&1) - *(sline + bits) = (BYTE)(second_byte & 0x0f)<<4; - else - *(sline + bits) = (BYTE)(second_byte & 0xf0); - } - } - low_nibble = !low_nibble; - } - } - break; - }; - } - break; - } - case BI_RLE8 : - { - BYTE status_byte = 0; - BYTE second_byte = 0; - int scanline = 0; - int bits = 0; - CImageIterator iter(this); - - for (BOOL bContinue = TRUE; bContinue && hFile->Read(&status_byte, sizeof(BYTE), 1);) { - switch (status_byte) { - case RLE_COMMAND : - hFile->Read(&status_byte, sizeof(BYTE), 1); - switch (status_byte) { - case RLE_ENDOFLINE : - bits = 0; - scanline++; - break; - case RLE_ENDOFBITMAP : - bContinue=FALSE; - break; - case RLE_DELTA : - { - // read the delta values - BYTE delta_x; - BYTE delta_y; - hFile->Read(&delta_x, sizeof(BYTE), 1); - hFile->Read(&delta_y, sizeof(BYTE), 1); - // apply them - bits += delta_x; - scanline += delta_y; - break; - } - default : - hFile->Read((void *)(iter.GetRow(scanline) + bits), sizeof(BYTE) * status_byte, 1); - // align run length to even number of bytes - if ((status_byte & 1) == 1) - hFile->Read(&second_byte, sizeof(BYTE), 1); - bits += status_byte; - break; - }; - break; - default : - BYTE *sline = iter.GetRow(scanline); - hFile->Read(&second_byte, sizeof(BYTE), 1); - for (unsigned i = 0; i < status_byte; i++) { - if ((DWORD)bits - - } cx_catch { - if (strcmp(message,"")) strncpy(info.szLastError,message,255); - if (info.nEscape == -1 && info.dwType == CXIMAGE_FORMAT_BMP) return true; - return false; - } - return true; -} -//////////////////////////////////////////////////////////////////////////////// -/* ReadDibBitmapInfo() - * - * Will read a file in DIB format and return a global HANDLE to its - * BITMAPINFO. This function will work with both "old" and "new" - * bitmap formats, but will always return a "new" BITMAPINFO. - */ -bool CxImageBMP::DibReadBitmapInfo(CxFile* fh, BITMAPINFOHEADER *pdib) -{ - if ((fh==NULL)||(pdib==NULL)) return false; - - if (fh->Read(pdib,sizeof(BITMAPINFOHEADER),1)==0) return false; - - bihtoh(pdib); - - switch (pdib->biSize) // what type of bitmap info is this? - { - case sizeof(BITMAPINFOHEADER): - break; - - case 64: //sizeof(OS2_BMP_HEADER): - fh->Seek((long)(64 - sizeof(BITMAPINFOHEADER)),SEEK_CUR); - break; - - case sizeof(BITMAPCOREHEADER): - { - BITMAPCOREHEADER bc = *(BITMAPCOREHEADER*)pdib; - pdib->biSize = bc.bcSize; - pdib->biWidth = (DWORD)bc.bcWidth; - pdib->biHeight = (DWORD)bc.bcHeight; - pdib->biPlanes = bc.bcPlanes; - pdib->biBitCount = bc.bcBitCount; - pdib->biCompression = BI_RGB; - pdib->biSizeImage = 0; - pdib->biXPelsPerMeter = 0; - pdib->biYPelsPerMeter = 0; - pdib->biClrUsed = 0; - pdib->biClrImportant = 0; - - fh->Seek((long)(sizeof(BITMAPCOREHEADER)-sizeof(BITMAPINFOHEADER)), SEEK_CUR); - } - break; - default: - //give a last chance - if (pdib->biSize>(sizeof(BITMAPINFOHEADER))&& - (pdib->biSizeImage>=(unsigned long)(pdib->biHeight*((((pdib->biBitCount*pdib->biWidth)+31)/32)*4)))&& - (pdib->biPlanes==1)&&(pdib->biClrUsed==0)) - { - if (pdib->biCompression==BI_RGB) - fh->Seek((long)(pdib->biSize - sizeof(BITMAPINFOHEADER)),SEEK_CUR); - break; - } - return false; - } - - FixBitmapInfo(pdib); - - return true; -} -//////////////////////////////////////////////////////////////////////////////// -#endif //CXIMAGE_SUPPORT_DECODE -//////////////////////////////////////////////////////////////////////////////// -#endif // CXIMAGE_SUPPORT_BMP -//////////////////////////////////////////////////////////////////////////////// diff --git a/src/3rdParty/CxImage/CxImage/ximabmp.h b/src/3rdParty/CxImage/CxImage/ximabmp.h deleted file mode 100644 index 3b794d944c..0000000000 --- a/src/3rdParty/CxImage/CxImage/ximabmp.h +++ /dev/null @@ -1,79 +0,0 @@ -/* - * File: ximabmp.h - * Purpose: BMP Image Class Loader and Writer - */ -/* ========================================================== - * CxImageBMP (c) 07/Aug/2001 Davide Pizzolato - www.xdp.it - * For conditions of distribution and use, see copyright notice in ximage.h - * - * Special thanks to Troels Knakkergaard for new features, enhancements and bugfixes - * - * original CImageBMP and CImageIterator implementation are: - * Copyright: (c) 1995, Alejandro Aguilar Sierra - * - * ========================================================== - */ - -#if !defined(__ximaBMP_h) -#define __ximaBMP_h - -#include "ximage.h" - -const int RLE_COMMAND = 0; -const int RLE_ENDOFLINE = 0; -const int RLE_ENDOFBITMAP = 1; -const int RLE_DELTA = 2; - -#if !defined(BI_RLE8) - #define BI_RLE8 1L -#endif -#if !defined(BI_RLE4) - #define BI_RLE4 2L -#endif - -#if CXIMAGE_SUPPORT_BMP - -class CxImageBMP: public CxImage -{ -public: - CxImageBMP(): CxImage(CXIMAGE_FORMAT_BMP) {}; - - bool Decode(CxFile * hFile); - bool Decode(FILE *hFile) { CxIOFile file(hFile); return Decode(&file); } - -#if CXIMAGE_SUPPORT_ENCODE - bool Encode(CxFile * hFile); - bool Encode(FILE *hFile) { CxIOFile file(hFile); return Encode(&file); } -#endif // CXIMAGE_SUPPORT_ENCODE - -protected: - bool DibReadBitmapInfo(CxFile* fh, BITMAPINFOHEADER *pdib); -}; - -#define BFT_ICON 0x4349 /* 'IC' */ -#define BFT_BITMAP 0x4d42 /* 'BM' */ -#define BFT_CURSOR 0x5450 /* 'PT' */ - -#ifndef WIDTHBYTES -#define WIDTHBYTES(i) ((unsigned)((i+31)&(~31))/8) /* ULONG aligned ! */ -#endif - -#endif - -#define DibWidthBytesN(lpbi, n) (UINT)WIDTHBYTES((UINT)(lpbi)->biWidth * (UINT)(n)) -#define DibWidthBytes(lpbi) DibWidthBytesN(lpbi, (lpbi)->biBitCount) - -#define DibSizeImage(lpbi) ((lpbi)->biSizeImage == 0 \ - ? ((DWORD)(UINT)DibWidthBytes(lpbi) * (DWORD)(UINT)(lpbi)->biHeight) \ - : (lpbi)->biSizeImage) - -#define DibNumColors(lpbi) ((lpbi)->biClrUsed == 0 && (lpbi)->biBitCount <= 8 \ - ? (int)(1 << (int)(lpbi)->biBitCount) \ - : (int)(lpbi)->biClrUsed) - -#define FixBitmapInfo(lpbi) if ((lpbi)->biSizeImage == 0) \ - (lpbi)->biSizeImage = DibSizeImage(lpbi); \ - if ((lpbi)->biClrUsed == 0) \ - (lpbi)->biClrUsed = DibNumColors(lpbi); \ - -#endif diff --git a/src/3rdParty/CxImage/CxImage/ximacfg.h b/src/3rdParty/CxImage/CxImage/ximacfg.h deleted file mode 100644 index e6e62e22b6..0000000000 --- a/src/3rdParty/CxImage/CxImage/ximacfg.h +++ /dev/null @@ -1,57 +0,0 @@ -#if !defined(__ximaCFG_h) -#define __ximaCFG_h - -///////////////////////////////////////////////////////////////////////////// -// CxImage supported features -#define CXIMAGE_SUPPORT_ALPHA 1 -#define CXIMAGE_SUPPORT_SELECTION 1 -#define CXIMAGE_SUPPORT_TRANSFORMATION 1 -#define CXIMAGE_SUPPORT_DSP 1 -#define CXIMAGE_SUPPORT_LAYERS 1 -#define CXIMAGE_SUPPORT_INTERPOLATION 1 - -#define CXIMAGE_SUPPORT_DECODE 1 -#define CXIMAGE_SUPPORT_ENCODE 1 // -#define CXIMAGE_SUPPORT_WINDOWS 1 - -///////////////////////////////////////////////////////////////////////////// -// CxImage supported formats -#define CXIMAGE_SUPPORT_BMP 0 -#define CXIMAGE_SUPPORT_GIF 0 -#define CXIMAGE_SUPPORT_JPG 0 -#define CXIMAGE_SUPPORT_PNG 1 -#define CXIMAGE_SUPPORT_ICO 0 -#define CXIMAGE_SUPPORT_TIF 0 -#define CXIMAGE_SUPPORT_TGA 0 -#define CXIMAGE_SUPPORT_PCX 0 -#define CXIMAGE_SUPPORT_WBMP 0 -#define CXIMAGE_SUPPORT_WMF 0 - -#define CXIMAGE_SUPPORT_JP2 0 -#define CXIMAGE_SUPPORT_JPC 0 -#define CXIMAGE_SUPPORT_PGX 0 -#define CXIMAGE_SUPPORT_PNM 0 -#define CXIMAGE_SUPPORT_RAS 0 - -#define CXIMAGE_SUPPORT_JBG 0 // GPL'd see ../jbig/copying.txt & ../jbig/patents.htm - -#define CXIMAGE_SUPPORT_MNG 0 -#define CXIMAGE_SUPPORT_SKA 0 -#define CXIMAGE_SUPPORT_RAW 0 - -///////////////////////////////////////////////////////////////////////////// -#define CXIMAGE_MAX_MEMORY 268435456 - -#define CXIMAGE_DEFAULT_DPI 96 - -#define CXIMAGE_ERR_NOFILE "null file handler" -#define CXIMAGE_ERR_NOIMAGE "null image!!!" - -#define CXIMAGE_SUPPORT_EXCEPTION_HANDLING 1 - -///////////////////////////////////////////////////////////////////////////// -//color to grey mapping -//#define RGB2GRAY(r,g,b) (((b)*114 + (g)*587 + (r)*299)/1000) -#define RGB2GRAY(r,g,b) (((b)*117 + (g)*601 + (r)*306) >> 10) - -#endif diff --git a/src/3rdParty/CxImage/CxImage/ximadef.h b/src/3rdParty/CxImage/CxImage/ximadef.h deleted file mode 100644 index f73bcd2a64..0000000000 --- a/src/3rdParty/CxImage/CxImage/ximadef.h +++ /dev/null @@ -1,206 +0,0 @@ -#if !defined(__ximadefs_h) -#define __ximadefs_h - -#include "ximacfg.h" - -#if defined(_AFXDLL)||defined(_USRDLL) - #define DLL_EXP __declspec(dllexport) -#elif defined(_MSC_VER)&&(_MSC_VER<1200) - #define DLL_EXP __declspec(dllimport) -#else - #define DLL_EXP -#endif - - -#if CXIMAGE_SUPPORT_EXCEPTION_HANDLING - #define cx_try try - #define cx_throw(message) throw(message) - #define cx_catch catch (const char *message) -#else - #define cx_try bool cx_error=false; - #define cx_throw(message) {cx_error=true; if(strcmp(message,"")) strncpy(info.szLastError,message,255); goto cx_error_catch;} - #define cx_catch cx_error_catch: char message[]=""; if(cx_error) -#endif - - -#if CXIMAGE_SUPPORT_JP2 || CXIMAGE_SUPPORT_JPC || CXIMAGE_SUPPORT_PGX || CXIMAGE_SUPPORT_PNM || CXIMAGE_SUPPORT_RAS - #define CXIMAGE_SUPPORT_JASPER 1 -#else - #define CXIMAGE_SUPPORT_JASPER 0 -#endif - -#if CXIMAGE_SUPPORT_DSP -#undef CXIMAGE_SUPPORT_TRANSFORMATION - #define CXIMAGE_SUPPORT_TRANSFORMATION 1 -#endif - -#if CXIMAGE_SUPPORT_TRANSFORMATION || CXIMAGE_SUPPORT_TIF || CXIMAGE_SUPPORT_TGA || CXIMAGE_SUPPORT_BMP || CXIMAGE_SUPPORT_WINDOWS - #define CXIMAGE_SUPPORT_BASICTRANSFORMATIONS 1 -#endif - -#if CXIMAGE_SUPPORT_DSP || CXIMAGE_SUPPORT_TRANSFORMATION -#undef CXIMAGE_SUPPORT_INTERPOLATION - #define CXIMAGE_SUPPORT_INTERPOLATION 1 -#endif - -#if defined (_WIN32_WCE) - #undef CXIMAGE_SUPPORT_WMF - #define CXIMAGE_SUPPORT_WMF 0 -#endif - -#if !defined(WIN32) && !defined(_WIN32_WCE) - #undef CXIMAGE_SUPPORT_WINDOWS - #define CXIMAGE_SUPPORT_WINDOWS 0 -#endif - -#ifndef min -#define min(a,b) (((a)<(b))?(a):(b)) -#endif -#ifndef max -#define max(a,b) (((a)>(b))?(a):(b)) -#endif - -#ifndef PI - #define PI 3.141592653589793f -#endif - - -#if defined(WIN32) || defined(_WIN32_WCE) -#include -#include -#endif - -#include -#include - -#ifdef __BORLANDC__ - -#ifndef _COMPLEX_DEFINED - -typedef struct tagcomplex { - double x,y; -} _complex; - -#endif - -#define _cabs(c) sqrt(c.x*c.x+c.y*c.y) - -#endif - - -#if !defined(WIN32) && !defined(_WIN32_WCE) - -#include -#include -#include - -typedef unsigned char BYTE; -typedef unsigned short WORD; -typedef unsigned long DWORD; -typedef unsigned int UINT; - -typedef DWORD COLORREF; -typedef unsigned int HANDLE; -typedef void* HRGN; - -#ifndef BOOL -#define BOOL bool -#endif - -#ifndef TRUE -#define TRUE true -#endif - -#ifndef FALSE -#define FALSE false -#endif - -#ifndef TCHAR -#define TCHAR char -#define _T -#endif - -typedef struct tagRECT -{ - long left; - long top; - long right; - long bottom; -} RECT; - -typedef struct tagPOINT -{ - long x; - long y; -} POINT; - -typedef struct tagRGBQUAD { - BYTE rgbBlue; - BYTE rgbGreen; - BYTE rgbRed; - BYTE rgbReserved; -} RGBQUAD; - -#pragma pack(1) - -typedef struct tagBITMAPINFOHEADER{ - DWORD biSize; - long biWidth; - long biHeight; - WORD biPlanes; - WORD biBitCount; - DWORD biCompression; - DWORD biSizeImage; - long biXPelsPerMeter; - long biYPelsPerMeter; - DWORD biClrUsed; - DWORD biClrImportant; -} BITMAPINFOHEADER; - -typedef struct tagBITMAPFILEHEADER { - WORD bfType; - DWORD bfSize; - WORD bfReserved1; - WORD bfReserved2; - DWORD bfOffBits; -} BITMAPFILEHEADER; - -typedef struct tagBITMAPCOREHEADER { - DWORD bcSize; - WORD bcWidth; - WORD bcHeight; - WORD bcPlanes; - WORD bcBitCount; -} BITMAPCOREHEADER; - -typedef struct tagRGBTRIPLE { - BYTE rgbtBlue; - BYTE rgbtGreen; - BYTE rgbtRed; -} RGBTRIPLE; - -#pragma pack() - -#define BI_RGB 0L -#define BI_RLE8 1L -#define BI_RLE4 2L -#define BI_BITFIELDS 3L - -#define GetRValue(rgb) ((BYTE)(rgb)) -#define GetGValue(rgb) ((BYTE)(((WORD)(rgb)) >> 8)) -#define GetBValue(rgb) ((BYTE)((rgb)>>16)) -#define RGB(r,g,b) ((COLORREF)(((BYTE)(r)|((WORD)((BYTE)(g))<<8))|(((DWORD)(BYTE)(b))<<16))) - -#ifndef _COMPLEX_DEFINED - -typedef struct tagcomplex { - double x,y; -} _complex; - -#endif - -#define _cabs(c) sqrt(c.x*c.x+c.y*c.y) - -#endif - -#endif //__ximadefs diff --git a/src/3rdParty/CxImage/CxImage/ximadsp.cpp b/src/3rdParty/CxImage/CxImage/ximadsp.cpp deleted file mode 100644 index 839314cdb1..0000000000 --- a/src/3rdParty/CxImage/CxImage/ximadsp.cpp +++ /dev/null @@ -1,3642 +0,0 @@ -// xImaDsp.cpp : DSP functions -/* 07/08/2001 v1.00 - Davide Pizzolato - www.xdp.it - * CxImage version 6.0.0 02/Feb/2008 - */ - -#include "ximage.h" - -#include "ximaiter.h" - -#if CXIMAGE_SUPPORT_DSP - -//////////////////////////////////////////////////////////////////////////////// -/** - * Converts the image to B&W. - * The OptimalThreshold() function can be used for calculating the optimal threshold. - * \param level: the lightness threshold. - * \return true if everything is ok - */ -bool CxImage::Threshold(BYTE level) -{ - if (!pDib) return false; - if (head.biBitCount == 1) return true; - - GrayScale(); - - CxImage tmp(head.biWidth,head.biHeight,1); - if (!tmp.IsValid()){ - strcpy(info.szLastError,tmp.GetLastError()); - return false; - } - - for (long y=0;ylevel) - tmp.BlindSetPixelIndex(x,y,1); - else - tmp.BlindSetPixelIndex(x,y,0); - } - } - tmp.SetPaletteColor(0,0,0,0); - tmp.SetPaletteColor(1,255,255,255); - Transfer(tmp); - return true; -} -//////////////////////////////////////////////////////////////////////////////// -/** - * Converts the image to B&W, using a threshold mask - * \param pThresholdMask: the lightness threshold mask. - * the pThresholdMask image must be grayscale with same with and height of the current image - * \return true if everything is ok - */ -bool CxImage::Threshold(CxImage* pThresholdMask) -{ - if (!pDib) return false; - if (head.biBitCount == 1) return true; - - if (!pThresholdMask) return false; - - if (!pThresholdMask->IsValid() || - !pThresholdMask->IsGrayScale() || - pThresholdMask->GetWidth() != GetWidth() || - pThresholdMask->GetHeight() != GetHeight()){ - strcpy(info.szLastError,"invalid ThresholdMask"); - return false; - } - - GrayScale(); - - CxImage tmp(head.biWidth,head.biHeight,1); - if (!tmp.IsValid()){ - strcpy(info.szLastError,tmp.GetLastError()); - return false; - } - - for (long y=0;ypThresholdMask->BlindGetPixelIndex(x,y)) - tmp.BlindSetPixelIndex(x,y,1); - else - tmp.BlindSetPixelIndex(x,y,0); - } - } - tmp.SetPaletteColor(0,0,0,0); - tmp.SetPaletteColor(1,255,255,255); - Transfer(tmp); - return true; -} -//////////////////////////////////////////////////////////////////////////////// -/** - * Filters only the pixels with a lightness less (or more) than the threshold level, - * and preserves the colors for the unfiltered pixels. - * \param level = the lightness threshold. - * \param bDirection = false: filter dark pixels, true: filter light pixels - * \param nBkgndColor = filtered pixels are set to nBkgndColor color - * \param bSetAlpha = if true, sets also the alpha component for the filtered pixels, with nBkgndColor.rgbReserved - * \return true if everything is ok - * \author [DP], [wangsongtao] - */ -//////////////////////////////////////////////////////////////////////////////// -bool CxImage::Threshold2(BYTE level, bool bDirection, RGBQUAD nBkgndColor, bool bSetAlpha) -{ - if (!pDib) return false; - if (head.biBitCount == 1) return true; - - CxImage tmp(*this, true, false, false); - if (!tmp.IsValid()){ - strcpy(info.szLastError,tmp.GetLastError()); - return false; - } - - tmp.GrayScale(); - - long xmin,xmax,ymin,ymax; - if (pSelection){ - xmin = info.rSelectionBox.left; xmax = info.rSelectionBox.right; - ymin = info.rSelectionBox.bottom; ymax = info.rSelectionBox.top; - } else { - xmin = ymin = 0; - xmax = head.biWidth; ymax=head.biHeight; - } - - for(long y=ymin; y=level) BlindSetPixelColor(x,y,nBkgndColor,bSetAlpha); - } - } - } - - return true; -} -//////////////////////////////////////////////////////////////////////////////// -/** - * Extract RGB channels from the image. Each channel is an 8 bit grayscale image. - * \param r,g,b: pointers to CxImage objects, to store the splited channels - * \return true if everything is ok - */ -bool CxImage::SplitRGB(CxImage* r,CxImage* g,CxImage* b) -{ - if (!pDib) return false; - if (r==NULL && g==NULL && b==NULL) return false; - - CxImage tmpr(head.biWidth,head.biHeight,8); - CxImage tmpg(head.biWidth,head.biHeight,8); - CxImage tmpb(head.biWidth,head.biHeight,8); - - RGBQUAD color; - for(long y=0; yTransfer(tmpr); - if (g) g->Transfer(tmpg); - if (b) b->Transfer(tmpb); - - return true; -} -//////////////////////////////////////////////////////////////////////////////// -/** - * Extract CMYK channels from the image. Each channel is an 8 bit grayscale image. - * \param c,m,y,k: pointers to CxImage objects, to store the splited channels - * \return true if everything is ok - */ -bool CxImage::SplitCMYK(CxImage* c,CxImage* m,CxImage* y,CxImage* k) -{ - if (!pDib) return false; - if (c==NULL && m==NULL && y==NULL && k==NULL) return false; - - CxImage tmpc(head.biWidth,head.biHeight,8); - CxImage tmpm(head.biWidth,head.biHeight,8); - CxImage tmpy(head.biWidth,head.biHeight,8); - CxImage tmpk(head.biWidth,head.biHeight,8); - - RGBQUAD color; - for(long yy=0; yyTransfer(tmpc); - if (m) m->Transfer(tmpm); - if (y) y->Transfer(tmpy); - if (k) k->Transfer(tmpk); - - return true; -} -//////////////////////////////////////////////////////////////////////////////// -/** - * Extract YUV channels from the image. Each channel is an 8 bit grayscale image. - * \param y,u,v: pointers to CxImage objects, to store the splited channels - * \return true if everything is ok - */ -bool CxImage::SplitYUV(CxImage* y,CxImage* u,CxImage* v) -{ - if (!pDib) return false; - if (y==NULL && u==NULL && v==NULL) return false; - - CxImage tmpy(head.biWidth,head.biHeight,8); - CxImage tmpu(head.biWidth,head.biHeight,8); - CxImage tmpv(head.biWidth,head.biHeight,8); - - RGBQUAD color; - for(long yy=0; yyTransfer(tmpy); - if (u) u->Transfer(tmpu); - if (v) v->Transfer(tmpv); - - return true; -} -//////////////////////////////////////////////////////////////////////////////// -/** - * Extract YIQ channels from the image. Each channel is an 8 bit grayscale image. - * \param y,i,q: pointers to CxImage objects, to store the splited channels - * \return true if everything is ok - */ -bool CxImage::SplitYIQ(CxImage* y,CxImage* i,CxImage* q) -{ - if (!pDib) return false; - if (y==NULL && i==NULL && q==NULL) return false; - - CxImage tmpy(head.biWidth,head.biHeight,8); - CxImage tmpi(head.biWidth,head.biHeight,8); - CxImage tmpq(head.biWidth,head.biHeight,8); - - RGBQUAD color; - for(long yy=0; yyTransfer(tmpy); - if (i) i->Transfer(tmpi); - if (q) q->Transfer(tmpq); - - return true; -} -//////////////////////////////////////////////////////////////////////////////// -/** - * Extract XYZ channels from the image. Each channel is an 8 bit grayscale image. - * \param x,y,z: pointers to CxImage objects, to store the splited channels - * \return true if everything is ok - */ -bool CxImage::SplitXYZ(CxImage* x,CxImage* y,CxImage* z) -{ - if (!pDib) return false; - if (x==NULL && y==NULL && z==NULL) return false; - - CxImage tmpx(head.biWidth,head.biHeight,8); - CxImage tmpy(head.biWidth,head.biHeight,8); - CxImage tmpz(head.biWidth,head.biHeight,8); - - RGBQUAD color; - for(long yy=0; yyTransfer(tmpx); - if (y) y->Transfer(tmpy); - if (z) z->Transfer(tmpz); - - return true; -} -//////////////////////////////////////////////////////////////////////////////// -/** - * Extract HSL channels from the image. Each channel is an 8 bit grayscale image. - * \param h,s,l: pointers to CxImage objects, to store the splited channels - * \return true if everything is ok - */ -bool CxImage::SplitHSL(CxImage* h,CxImage* s,CxImage* l) -{ - if (!pDib) return false; - if (h==NULL && s==NULL && l==NULL) return false; - - CxImage tmph(head.biWidth,head.biHeight,8); - CxImage tmps(head.biWidth,head.biHeight,8); - CxImage tmpl(head.biWidth,head.biHeight,8); - - RGBQUAD color; - for(long y=0; yTransfer(tmph); - if (s) s->Transfer(tmps); - if (l) l->Transfer(tmpl); - - return true; -} -//////////////////////////////////////////////////////////////////////////////// -#define HSLMAX 255 /* H,L, and S vary over 0-HSLMAX */ -#define RGBMAX 255 /* R,G, and B vary over 0-RGBMAX */ - /* HSLMAX BEST IF DIVISIBLE BY 6 */ - /* RGBMAX, HSLMAX must each fit in a BYTE. */ -/* Hue is undefined if Saturation is 0 (grey-scale) */ -/* This value determines where the Hue scrollbar is */ -/* initially set for achromatic colors */ -#define HSLUNDEFINED (HSLMAX*2/3) -//////////////////////////////////////////////////////////////////////////////// -RGBQUAD CxImage::RGBtoHSL(RGBQUAD lRGBColor) -{ - BYTE R,G,B; /* input RGB values */ - BYTE H,L,S; /* output HSL values */ - BYTE cMax,cMin; /* max and min RGB values */ - WORD Rdelta,Gdelta,Bdelta; /* intermediate value: % of spread from max*/ - - R = lRGBColor.rgbRed; /* get R, G, and B out of DWORD */ - G = lRGBColor.rgbGreen; - B = lRGBColor.rgbBlue; - - cMax = max( max(R,G), B); /* calculate lightness */ - cMin = min( min(R,G), B); - L = (BYTE)((((cMax+cMin)*HSLMAX)+RGBMAX)/(2*RGBMAX)); - - if (cMax==cMin){ /* r=g=b --> achromatic case */ - S = 0; /* saturation */ - H = HSLUNDEFINED; /* hue */ - } else { /* chromatic case */ - if (L <= (HSLMAX/2)) /* saturation */ - S = (BYTE)((((cMax-cMin)*HSLMAX)+((cMax+cMin)/2))/(cMax+cMin)); - else - S = (BYTE)((((cMax-cMin)*HSLMAX)+((2*RGBMAX-cMax-cMin)/2))/(2*RGBMAX-cMax-cMin)); - /* hue */ - Rdelta = (WORD)((((cMax-R)*(HSLMAX/6)) + ((cMax-cMin)/2) ) / (cMax-cMin)); - Gdelta = (WORD)((((cMax-G)*(HSLMAX/6)) + ((cMax-cMin)/2) ) / (cMax-cMin)); - Bdelta = (WORD)((((cMax-B)*(HSLMAX/6)) + ((cMax-cMin)/2) ) / (cMax-cMin)); - - if (R == cMax) - H = (BYTE)(Bdelta - Gdelta); - else if (G == cMax) - H = (BYTE)((HSLMAX/3) + Rdelta - Bdelta); - else /* B == cMax */ - H = (BYTE)(((2*HSLMAX)/3) + Gdelta - Rdelta); - -// if (H < 0) H += HSLMAX; //always false - if (H > HSLMAX) H -= HSLMAX; - } - RGBQUAD hsl={L,S,H,0}; - return hsl; -} -//////////////////////////////////////////////////////////////////////////////// -float CxImage::HueToRGB(float n1,float n2, float hue) -{ - // fixed implementation for HSL2RGB routine - float rValue; - - if (hue > 360) - hue = hue - 360; - else if (hue < 0) - hue = hue + 360; - - if (hue < 60) - rValue = n1 + (n2-n1)*hue/60.0f; - else if (hue < 180) - rValue = n2; - else if (hue < 240) - rValue = n1+(n2-n1)*(240-hue)/60; - else - rValue = n1; - - return rValue; -} -//////////////////////////////////////////////////////////////////////////////// -RGBQUAD CxImage::HSLtoRGB(COLORREF cHSLColor) -{ - return HSLtoRGB(RGBtoRGBQUAD(cHSLColor)); -} -//////////////////////////////////////////////////////////////////////////////// -RGBQUAD CxImage::HSLtoRGB(RGBQUAD lHSLColor) -{ - // fixed implementation for HSL2RGB routine - float h,s,l; - float m1,m2; - BYTE r,g,b; - - h = (float)lHSLColor.rgbRed * 360.0f/255.0f; - s = (float)lHSLColor.rgbGreen/255.0f; - l = (float)lHSLColor.rgbBlue/255.0f; - - if (l <= 0.5) m2 = l * (1+s); - else m2 = l + s - l*s; - - m1 = 2 * l - m2; - - if (s == 0) { - r=g=b=(BYTE)(l*255.0f); - } else { - r = (BYTE)(HueToRGB(m1,m2,h+120) * 255.0f); - g = (BYTE)(HueToRGB(m1,m2,h) * 255.0f); - b = (BYTE)(HueToRGB(m1,m2,h-120) * 255.0f); - } - - RGBQUAD rgb = {b,g,r,0}; - return rgb; -} -//////////////////////////////////////////////////////////////////////////////// -RGBQUAD CxImage::YUVtoRGB(RGBQUAD lYUVColor) -{ - int U,V,R,G,B; - float Y = lYUVColor.rgbRed; - U = lYUVColor.rgbGreen - 128; - V = lYUVColor.rgbBlue - 128; - -// R = (int)(1.164 * Y + 2.018 * U); -// G = (int)(1.164 * Y - 0.813 * V - 0.391 * U); -// B = (int)(1.164 * Y + 1.596 * V); - R = (int)( Y + 1.403f * V); - G = (int)( Y - 0.344f * U - 0.714f * V); - B = (int)( Y + 1.770f * U); - - R= min(255,max(0,R)); - G= min(255,max(0,G)); - B= min(255,max(0,B)); - RGBQUAD rgb={(BYTE)B,(BYTE)G,(BYTE)R,0}; - return rgb; -} -//////////////////////////////////////////////////////////////////////////////// -RGBQUAD CxImage::RGBtoYUV(RGBQUAD lRGBColor) -{ - int Y,U,V,R,G,B; - R = lRGBColor.rgbRed; - G = lRGBColor.rgbGreen; - B = lRGBColor.rgbBlue; - -// Y = (int)( 0.257 * R + 0.504 * G + 0.098 * B); -// U = (int)( 0.439 * R - 0.368 * G - 0.071 * B + 128); -// V = (int)(-0.148 * R - 0.291 * G + 0.439 * B + 128); - Y = (int)(0.299f * R + 0.587f * G + 0.114f * B); - U = (int)((B-Y) * 0.565f + 128); - V = (int)((R-Y) * 0.713f + 128); - - Y= min(255,max(0,Y)); - U= min(255,max(0,U)); - V= min(255,max(0,V)); - RGBQUAD yuv={(BYTE)V,(BYTE)U,(BYTE)Y,0}; - return yuv; -} -//////////////////////////////////////////////////////////////////////////////// -RGBQUAD CxImage::YIQtoRGB(RGBQUAD lYIQColor) -{ - int I,Q,R,G,B; - float Y = lYIQColor.rgbRed; - I = lYIQColor.rgbGreen - 128; - Q = lYIQColor.rgbBlue - 128; - - R = (int)( Y + 0.956f * I + 0.621f * Q); - G = (int)( Y - 0.273f * I - 0.647f * Q); - B = (int)( Y - 1.104f * I + 1.701f * Q); - - R= min(255,max(0,R)); - G= min(255,max(0,G)); - B= min(255,max(0,B)); - RGBQUAD rgb={(BYTE)B,(BYTE)G,(BYTE)R,0}; - return rgb; -} -//////////////////////////////////////////////////////////////////////////////// -RGBQUAD CxImage::RGBtoYIQ(RGBQUAD lRGBColor) -{ - int Y,I,Q,R,G,B; - R = lRGBColor.rgbRed; - G = lRGBColor.rgbGreen; - B = lRGBColor.rgbBlue; - - Y = (int)( 0.2992f * R + 0.5868f * G + 0.1140f * B); - I = (int)( 0.5960f * R - 0.2742f * G - 0.3219f * B + 128); - Q = (int)( 0.2109f * R - 0.5229f * G + 0.3120f * B + 128); - - Y= min(255,max(0,Y)); - I= min(255,max(0,I)); - Q= min(255,max(0,Q)); - RGBQUAD yiq={(BYTE)Q,(BYTE)I,(BYTE)Y,0}; - return yiq; -} -//////////////////////////////////////////////////////////////////////////////// -RGBQUAD CxImage::XYZtoRGB(RGBQUAD lXYZColor) -{ - int X,Y,Z,R,G,B; - X = lXYZColor.rgbRed; - Y = lXYZColor.rgbGreen; - Z = lXYZColor.rgbBlue; - double k=1.088751; - - R = (int)( 3.240479f * X - 1.537150f * Y - 0.498535f * Z * k); - G = (int)( -0.969256f * X + 1.875992f * Y + 0.041556f * Z * k); - B = (int)( 0.055648f * X - 0.204043f * Y + 1.057311f * Z * k); - - R= min(255,max(0,R)); - G= min(255,max(0,G)); - B= min(255,max(0,B)); - RGBQUAD rgb={(BYTE)B,(BYTE)G,(BYTE)R,0}; - return rgb; -} -//////////////////////////////////////////////////////////////////////////////// -RGBQUAD CxImage::RGBtoXYZ(RGBQUAD lRGBColor) -{ - int X,Y,Z,R,G,B; - R = lRGBColor.rgbRed; - G = lRGBColor.rgbGreen; - B = lRGBColor.rgbBlue; - - X = (int)( 0.412453f * R + 0.357580f * G + 0.180423f * B); - Y = (int)( 0.212671f * R + 0.715160f * G + 0.072169f * B); - Z = (int)((0.019334f * R + 0.119193f * G + 0.950227f * B)*0.918483657f); - - //X= min(255,max(0,X)); - //Y= min(255,max(0,Y)); - //Z= min(255,max(0,Z)); - RGBQUAD xyz={(BYTE)Z,(BYTE)Y,(BYTE)X,0}; - return xyz; -} -//////////////////////////////////////////////////////////////////////////////// -/** - * Generates a "rainbow" palette with saturated colors - * \param correction: 1 generates a single hue spectrum. 0.75 is nice for scientific applications. - */ -void CxImage::HuePalette(float correction) -{ - if (head.biClrUsed==0) return; - - for(DWORD j=0; j 1.0f) blend = 1.0f; - int a0 = (int)(256*blend); - int a1 = 256 - a0; - - bool bFullBlend = false; - if (blend > 0.999f) bFullBlend = true; - - RGBQUAD color,hsl; - if (head.biClrUsed==0){ - - long xmin,xmax,ymin,ymax; - if (pSelection){ - xmin = info.rSelectionBox.left; xmax = info.rSelectionBox.right; - ymin = info.rSelectionBox.bottom; ymax = info.rSelectionBox.top; - } else { - xmin = ymin = 0; - xmax = head.biWidth; ymax=head.biHeight; - } - - for(long y=ymin; y>8); - color.rgbBlue = (BYTE)((hsl.rgbBlue * a0 + color.rgbBlue * a1)>>8); - color.rgbGreen = (BYTE)((hsl.rgbGreen * a0 + color.rgbGreen * a1)>>8); - BlindSetPixelColor(x,y,color); - } - } - } - } - } else { - for(DWORD j=0; j - for (int i=0;i<256;i++) { - cTable[i] = (BYTE)max(0,min(255,(int)((i-128)*c + brightness + 0.5f))); - } - - return Lut(cTable); -} -//////////////////////////////////////////////////////////////////////////////// -/** - * \return mean lightness of the image. Useful with Threshold() and Light() - */ -float CxImage::Mean() -{ - if (!pDib) return 0; - - CxImage tmp(*this,true); - if (!tmp.IsValid()){ - strcpy(info.szLastError,tmp.GetLastError()); - return false; - } - - tmp.GrayScale(); - float sum=0; - - long xmin,xmax,ymin,ymax; - if (pSelection){ - xmin = info.rSelectionBox.left; xmax = info.rSelectionBox.right; - ymin = info.rSelectionBox.bottom; ymax = info.rSelectionBox.top; - } else { - xmin = ymin = 0; - xmax = head.biWidth; ymax=head.biHeight; - } - if (xmin==xmax || ymin==ymax) return (float)0.0; - - BYTE *iSrc=tmp.info.pImage; - iSrc += tmp.info.dwEffWidth*ymin; // necessary for selections - - for(long y=ymin; y - for(long x=xmin; x(y+j) || (y+j)>=head.biHeight) continue; - iY = iY2+x; - for(long k=-k2;k(x+k) || (x+k)>=head.biWidth) continue; - i=kernel[iCount]; - b += cPtr[iY+k] * i; - ksumcur += i; - } - } - if (Kfactor==0 || ksumcur==0){ - cPtr2[iY1] = (BYTE)min(255, max(0,(int)(b + Koffset))); - } else if (ksumtot == ksumcur) { - cPtr2[iY1] = (BYTE)min(255, max(0,(int)(b/Kfactor + Koffset))); - } else { - cPtr2[iY1] = (BYTE)min(255, max(0,(int)((b*ksumtot)/(ksumcur*Kfactor) + Koffset))); - } - } - } - } - } - else - { - for(long y=ymin; y r) r=c.rgbRed; - if (c.rgbGreen > g) g=c.rgbGreen; - if (c.rgbBlue > b) b=c.rgbBlue; - } - } - c.rgbRed = r; - c.rgbGreen = g; - c.rgbBlue = b; - tmp.BlindSetPixelColor(x,y,c); - } - } - } - Transfer(tmp); - return true; -} -//////////////////////////////////////////////////////////////////////////////// -/** - * Enhance the variations between adjacent pixels. - * Similar results can be achieved using Filter(), - * but the algorithms are different both in Edge() and in Contour(). - * \param Ksize: size of the kernel. - * \return true if everything is ok - */ -bool CxImage::Edge(long Ksize) -{ - if (!pDib) return false; - - long k2 = Ksize/2; - long kmax= Ksize-k2; - BYTE r,g,b,rr,gg,bb; - RGBQUAD c; - - CxImage tmp(*this); - if (!tmp.IsValid()){ - strcpy(info.szLastError,tmp.GetLastError()); - return false; - } - - long xmin,xmax,ymin,ymax; - if (pSelection){ - xmin = info.rSelectionBox.left; xmax = info.rSelectionBox.right; - ymin = info.rSelectionBox.bottom; ymax = info.rSelectionBox.top; - } else { - xmin = ymin = 0; - xmax = head.biWidth; ymax=head.biHeight; - } - - for(long y=ymin; y r) r=c.rgbRed; - if (c.rgbGreen > g) g=c.rgbGreen; - if (c.rgbBlue > b) b=c.rgbBlue; - - if (c.rgbRed < rr) rr=c.rgbRed; - if (c.rgbGreen < gg) gg=c.rgbGreen; - if (c.rgbBlue < bb) bb=c.rgbBlue; - } - } - c.rgbRed = (BYTE)(255-abs(r-rr)); - c.rgbGreen = (BYTE)(255-abs(g-gg)); - c.rgbBlue = (BYTE)(255-abs(b-bb)); - tmp.BlindSetPixelColor(x,y,c); - } - } - } - Transfer(tmp); - return true; -} -//////////////////////////////////////////////////////////////////////////////// -/** - * Blends two images - * \param imgsrc2: image to be mixed with this - * \param op: blending method; see ImageOpType - * \param lXOffset, lYOffset: image displacement - * \param bMixAlpha: if true and imgsrc2 has a valid alpha layer, it will be mixed in the destination image. - * \return true if everything is ok - * - * thanks to Mwolski - */ -// -void CxImage::Mix(CxImage & imgsrc2, ImageOpType op, long lXOffset, long lYOffset, bool bMixAlpha) -{ - long lWide = min(GetWidth(),imgsrc2.GetWidth()-lXOffset); - long lHeight = min(GetHeight(),imgsrc2.GetHeight()-lYOffset); - - bool bEditAlpha = imgsrc2.AlphaIsValid() & bMixAlpha; - - if (bEditAlpha && AlphaIsValid()==false){ - AlphaCreate(); - } - - RGBQUAD rgbBackgrnd1 = GetTransColor(); - RGBQUAD rgb1, rgb2, rgbDest; - - for(long lY=0;lY - for(x = 0; x < width; x++) { - for(y = 0; y < height; y++) { - SetPixelColor(x + lXOffset, y + lYOffset, imagesrc2.BlindGetPixelColor(x, y)); - } - } - } -} -//////////////////////////////////////////////////////////////////////////////// -/** - * Adjusts separately the red, green, and blue values in the image. - * \param r, g, b: can be from -255 to +255. - * \return true if everything is ok - */ -bool CxImage::ShiftRGB(long r, long g, long b) -{ - if (!pDib) return false; - RGBQUAD color; - if (head.biClrUsed==0){ - - long xmin,xmax,ymin,ymax; - if (pSelection){ - xmin = info.rSelectionBox.left; xmax = info.rSelectionBox.right; - ymin = info.rSelectionBox.bottom; ymax = info.rSelectionBox.top; - } else { - xmin = ymin = 0; - xmax = head.biWidth; ymax=head.biHeight; - } - - for(long y=ymin; y - for (int i=0;i<256;i++) { - cTable[i] = (BYTE)max(0,min(255,(int)( pow((double)i, dinvgamma) / dMax))); - } - - return Lut(cTable); -} -//////////////////////////////////////////////////////////////////////////////// -/** - * Adjusts the color balance indipendent for each color channel - * \param gammaR, gammaG, gammaB can be from 0.1 to 5. - * \return true if everything is ok - * \sa Gamma - */ -bool CxImage::GammaRGB(float gammaR, float gammaG, float gammaB) -{ - if (!pDib) return false; - - if (gammaR <= 0.0f) return false; - if (gammaG <= 0.0f) return false; - if (gammaB <= 0.0f) return false; - - double dinvgamma, dMax; - int i; - - dinvgamma = 1/gammaR; - dMax = pow(255.0, dinvgamma) / 255.0; - BYTE cTableR[256]; - for (i=0;i<256;i++) { - cTableR[i] = (BYTE)max(0,min(255,(int)( pow((double)i, dinvgamma) / dMax))); - } - - dinvgamma = 1/gammaG; - dMax = pow(255.0, dinvgamma) / 255.0; - BYTE cTableG[256]; - for (i=0;i<256;i++) { - cTableG[i] = (BYTE)max(0,min(255,(int)( pow((double)i, dinvgamma) / dMax))); - } - - dinvgamma = 1/gammaB; - dMax = pow(255.0, dinvgamma) / 255.0; - BYTE cTableB[256]; - for (i=0;i<256;i++) { - cTableB[i] = (BYTE)max(0,min(255,(int)( pow((double)i, dinvgamma) / dMax))); - } - - return Lut(cTableR, cTableG, cTableB); -} -//////////////////////////////////////////////////////////////////////////////// - -//#if !defined (_WIN32_WCE) -/** - * Adjusts the intensity of each pixel to the median intensity of its surrounding pixels. - * \param Ksize: size of the kernel. - * \return true if everything is ok - */ -bool CxImage::Median(long Ksize) -{ - if (!pDib) return false; - - long k2 = Ksize/2; - long kmax= Ksize-k2; - long i,j,k; - - RGBQUAD* kernel = (RGBQUAD*)malloc(Ksize*Ksize*sizeof(RGBQUAD)); - - CxImage tmp(*this); - if (!tmp.IsValid()){ - strcpy(info.szLastError,tmp.GetLastError()); - return false; - } - - long xmin,xmax,ymin,ymax; - if (pSelection){ - xmin = info.rSelectionBox.left; xmax = info.rSelectionBox.right; - ymin = info.rSelectionBox.bottom; ymax = info.rSelectionBox.top; - } else { - xmin = ymin = 0; - xmax = head.biWidth; ymax=head.biHeight; - } - - for(long y=ymin; y - for(long x=xmin; xGetWidth(); - h=srcReal->GetHeight(); - } else { - w=srcImag->GetWidth(); - h=srcImag->GetHeight(); - } - - bool bXpow2 = IsPowerof2(w); - bool bYpow2 = IsPowerof2(h); - //if bForceFFT, width AND height must be powers of 2 - if (bForceFFT && !(bXpow2 && bYpow2)) { - long i; - - i=0; - while((1< copy the image - if (srcReal && dstReal) tmpReal->Copy(*srcReal,true,false,false); - if (srcImag && dstImag) tmpImag->Copy(*srcImag,true,false,false); - - // dst&&src are empty -> create new one, else turn to GrayScale - if (srcReal==0 && dstReal==0){ - tmpReal = new CxImage(w,h,8); - tmpReal->Clear(0); - tmpReal->SetGrayPalette(); - } else { - if (!tmpReal->IsGrayScale()) tmpReal->GrayScale(); - } - if (srcImag==0 && dstImag==0){ - tmpImag = new CxImage(w,h,8); - tmpImag->Clear(0); - tmpImag->SetGrayPalette(); - } else { - if (!tmpImag->IsGrayScale()) tmpImag->GrayScale(); - } - - if (!(tmpReal->IsValid() && tmpImag->IsValid())){ - if (srcReal==0 && dstReal==0) delete tmpReal; - if (srcImag==0 && dstImag==0) delete tmpImag; - return false; - } - - //resample for FFT, if necessary - tmpReal->Resample(w,h,0); - tmpImag->Resample(w,h,0); - - //ok, here we have 2 (w x h), grayscale images ready for a FFT - - double* real; - double* imag; - long j,k,m; - - _complex **grid; - //double mean = tmpReal->Mean(); - /* Allocate memory for the grid */ - grid = (_complex **)malloc(w * sizeof(_complex)); - for (k=0;kGetPixelIndex(k,j)-128; - grid[k][j].y = tmpImag->GetPixelIndex(k,j)-128; - } - } - - //DFT buffers - double *real2,*imag2; - real2 = (double*)malloc(max(w,h) * sizeof(double)); - imag2 = (double*)malloc(max(w,h) * sizeof(double)); - - /* Transform the rows */ - real = (double *)malloc(w * sizeof(double)); - imag = (double *)malloc(w * sizeof(double)); - - m=0; - while((1<SetPixelIndex(k,j,(BYTE)max(0,min(255,(nn*(3+log(_cabs(grid[k][j]))))))); - if (grid[k][j].x==0){ - tmpImag->SetPixelIndex(k,j,(BYTE)max(0,min(255,(128+(atan(grid[k][j].y/0.0000000001)*nn))))); - } else { - tmpImag->SetPixelIndex(k,j,(BYTE)max(0,min(255,(128+(atan(grid[k][j].y/grid[k][j].x)*nn))))); - } - } else { - tmpReal->SetPixelIndex(k,j,(BYTE)max(0,min(255,(128 + grid[k][j].x*nn)))); - tmpImag->SetPixelIndex(k,j,(BYTE)max(0,min(255,(128 + grid[k][j].y*nn)))); - } - } - } - - for (k=0;k> 1; - j = 0; - for (i=0;i>= 1; - } - j += k; - } - - /* Compute the FFT */ - c1 = -1.0; - c2 = 0.0; - l2 = 1; - for (l=0;lGetWidth(); - long h = r->GetHeight(); - - Create(w,h,24); - - g->Resample(w,h); - b->Resample(w,h); - - if (a) { - a->Resample(w,h); -#if CXIMAGE_SUPPORT_ALPHA - AlphaCreate(); -#endif //CXIMAGE_SUPPORT_ALPHA - } - - RGBQUAD c; - for (long y=0;y - for (long x=0;xGetPixelIndex(x,y); - c.rgbGreen=g->GetPixelIndex(x,y); - c.rgbBlue=b->GetPixelIndex(x,y); - switch (colorspace){ - case 1: - BlindSetPixelColor(x,y,HSLtoRGB(c)); - break; - case 2: - BlindSetPixelColor(x,y,YUVtoRGB(c)); - break; - case 3: - BlindSetPixelColor(x,y,YIQtoRGB(c)); - break; - case 4: - BlindSetPixelColor(x,y,XYZtoRGB(c)); - break; - default: - BlindSetPixelColor(x,y,c); - } -#if CXIMAGE_SUPPORT_ALPHA - if (a) AlphaSet(x,y,a->GetPixelIndex(x,y)); -#endif //CXIMAGE_SUPPORT_ALPHA - } - } - - return true; -} -//////////////////////////////////////////////////////////////////////////////// -/** - * Smart blurring to remove small defects, dithering or artifacts. - * \param radius: normally between 0.01 and 0.5 - * \param niterations: should be trimmed with radius, to avoid blurring should be (radius*niterations)<1 - * \param colorspace: 0 = RGB, 1 = HSL, 2 = YUV, 3 = YIQ, 4 = XYZ - * \return true if everything is ok - */ -bool CxImage::Repair(float radius, long niterations, long colorspace) -{ - if (!IsValid()) return false; - - long w = GetWidth(); - long h = GetHeight(); - - CxImage r,g,b; - - r.Create(w,h,8); - g.Create(w,h,8); - b.Create(w,h,8); - - switch (colorspace){ - case 1: - SplitHSL(&r,&g,&b); - break; - case 2: - SplitYUV(&r,&g,&b); - break; - case 3: - SplitYIQ(&r,&g,&b); - break; - case 4: - SplitXYZ(&r,&g,&b); - break; - default: - SplitRGB(&r,&g,&b); - } - - for (int i=0; iGetWidth()-1; - long h = ch->GetHeight()-1; - - double correction,ix,iy,ixx,ixy,iyy; - int x,y,xy0,xp1,xm1,yp1,ym1; - - for(x=1; xBlindGetPixelIndex(x,y); - xm1 = ch->BlindGetPixelIndex(x-1,y); - xp1 = ch->BlindGetPixelIndex(x+1,y); - ym1 = ch->BlindGetPixelIndex(x,y-1); - yp1 = ch->BlindGetPixelIndex(x,y+1); - - ix= (xp1-xm1)/2.0; - iy= (yp1-ym1)/2.0; - ixx= xp1 - 2.0 * xy0 + xm1; - iyy= yp1 - 2.0 * xy0 + ym1; - ixy=(ch->BlindGetPixelIndex(x+1,y+1) + ch->BlindGetPixelIndex(x-1,y-1) - - ch->BlindGetPixelIndex(x-1,y+1) - ch->BlindGetPixelIndex(x+1,y-1))/4.0; - - correction = ((1.0+iy*iy)*ixx - ix*iy*ixy + (1.0+ix*ix)*iyy)/(1.0+ix*ix+iy*iy); - - tmp.BlindSetPixelIndex(x,y,(BYTE)min(255,max(0,(xy0 + radius * correction + 0.5)))); - } - } - - for (x=0;x<=w;x++){ - for(y=0; y<=h; y+=h){ - xy0 = ch->BlindGetPixelIndex(x,y); - xm1 = ch->GetPixelIndex(x-1,y); - xp1 = ch->GetPixelIndex(x+1,y); - ym1 = ch->GetPixelIndex(x,y-1); - yp1 = ch->GetPixelIndex(x,y+1); - - ix= (xp1-xm1)/2.0; - iy= (yp1-ym1)/2.0; - ixx= xp1 - 2.0 * xy0 + xm1; - iyy= yp1 - 2.0 * xy0 + ym1; - ixy=(ch->GetPixelIndex(x+1,y+1) + ch->GetPixelIndex(x-1,y-1) - - ch->GetPixelIndex(x-1,y+1) - ch->GetPixelIndex(x+1,y-1))/4.0; - - correction = ((1.0+iy*iy)*ixx - ix*iy*ixy + (1.0+ix*ix)*iyy)/(1.0+ix*ix+iy*iy); - - tmp.BlindSetPixelIndex(x,y,(BYTE)min(255,max(0,(xy0 + radius * correction + 0.5)))); - } - } - for (x=0;x<=w;x+=w){ - for (y=0;y<=h;y++){ - xy0 = ch->BlindGetPixelIndex(x,y); - xm1 = ch->GetPixelIndex(x-1,y); - xp1 = ch->GetPixelIndex(x+1,y); - ym1 = ch->GetPixelIndex(x,y-1); - yp1 = ch->GetPixelIndex(x,y+1); - - ix= (xp1-xm1)/2.0; - iy= (yp1-ym1)/2.0; - ixx= xp1 - 2.0 * xy0 + xm1; - iyy= yp1 - 2.0 * xy0 + ym1; - ixy=(ch->GetPixelIndex(x+1,y+1) + ch->GetPixelIndex(x-1,y-1) - - ch->GetPixelIndex(x-1,y+1) - ch->GetPixelIndex(x+1,y-1))/4.0; - - correction = ((1.0+iy*iy)*ixx - ix*iy*ixy + (1.0+ix*ix)*iyy)/(1.0+ix*ix+iy*iy); - - tmp.BlindSetPixelIndex(x,y,(BYTE)min(255,max(0,(xy0 + radius * correction + 0.5)))); - } - } - - ch->Transfer(tmp); - return true; -} -//////////////////////////////////////////////////////////////////////////////// -/** - * Enhance the variations between adjacent pixels. - * Similar results can be achieved using Filter(), - * but the algorithms are different both in Edge() and in Contour(). - * \return true if everything is ok - */ -bool CxImage::Contour() -{ - if (!pDib) return false; - - long Ksize = 3; - long k2 = Ksize/2; - long kmax= Ksize-k2; - long i,j,k; - BYTE maxr,maxg,maxb; - RGBQUAD pix1,pix2; - - CxImage tmp(*this); - if (!tmp.IsValid()){ - strcpy(info.szLastError,tmp.GetLastError()); - return false; - } - - long xmin,xmax,ymin,ymax; - if (pSelection){ - xmin = info.rSelectionBox.left; xmax = info.rSelectionBox.right; - ymin = info.rSelectionBox.bottom; ymax = info.rSelectionBox.top; - } else { - xmin = ymin = 0; - xmax = head.biWidth; ymax=head.biHeight; - } - - for(long y=ymin; ymaxb) maxb = pix2.rgbBlue; - if ((pix2.rgbGreen-pix1.rgbGreen)>maxg) maxg = pix2.rgbGreen; - if ((pix2.rgbRed-pix1.rgbRed)>maxr) maxr = pix2.rgbRed; - } - } - pix1.rgbBlue=(BYTE)(255-maxb); - pix1.rgbGreen=(BYTE)(255-maxg); - pix1.rgbRed=(BYTE)(255-maxr); - tmp.BlindSetPixelColor(x,y,pix1); - } - } - } - Transfer(tmp); - return true; -} -//////////////////////////////////////////////////////////////////////////////// -/** - * Adds a random offset to each pixel in the image - * \param radius: maximum pixel displacement - * \return true if everything is ok - */ -bool CxImage::Jitter(long radius) -{ - if (!pDib) return false; - - long nx,ny; - - CxImage tmp(*this); - if (!tmp.IsValid()){ - strcpy(info.szLastError,tmp.GetLastError()); - return false; - } - - long xmin,xmax,ymin,ymax; - if (pSelection){ - xmin = info.rSelectionBox.left; xmax = info.rSelectionBox.right; - ymin = info.rSelectionBox.bottom; ymax = info.rSelectionBox.top; - } else { - xmin = ymin = 0; - xmax = head.biWidth; ymax=head.biHeight; - } - - for(long y=ymin; y modified scaling, so that matrix_lenght = 1+2*radius parameter - */ - radius = (float)fabs(0.5*radius) + 0.25f; - - std_dev = radius; - radius = std_dev * 2; - - /* go out 'radius' in each direction */ - matrix_length = int (2 * ceil(radius-0.5) + 1); - if (matrix_length <= 0) matrix_length = 1; - matrix_midpoint = matrix_length/2 + 1; - *cmatrix_p = new float[matrix_length]; - cmatrix = *cmatrix_p; - - /* Now we fill the matrix by doing a numeric integration approximation - * from -2*std_dev to 2*std_dev, sampling 50 points per pixel. - * We do the bottom half, mirror it to the top half, then compute the - * center point. Otherwise asymmetric quantization errors will occur. - * The formula to integrate is e^-(x^2/2s^2). - */ - - /* first we do the top (right) half of matrix */ - for (i = matrix_length/2 + 1; i < matrix_length; i++) - { - float base_x = i - (float)floor((float)(matrix_length/2)) - 0.5f; - sum = 0; - for (j = 1; j <= 50; j++) - { - if ( base_x+0.02*j <= radius ) - sum += (float)exp (-(base_x+0.02*j)*(base_x+0.02*j) / - (2*std_dev*std_dev)); - } - cmatrix[i] = sum/50; - } - - /* mirror the thing to the bottom half */ - for (i=0; i<=matrix_length/2; i++) { - cmatrix[i] = cmatrix[matrix_length-1-i]; - } - - /* find center val -- calculate an odd number of quanta to make it symmetric, - * even if the center point is weighted slightly higher than others. */ - sum = 0; - for (j=0; j<=50; j++) - { - sum += (float)exp (-(0.5+0.02*j)*(0.5+0.02*j) / - (2*std_dev*std_dev)); - } - cmatrix[matrix_length/2] = sum/51; - - /* normalize the distribution by scaling the total sum to one */ - sum=0; - for (i=0; i y) - { - for (row = 0; row < y ; row++) - { - scale=0; - /* find the scale factor */ - for (j = 0; j < y ; j++) - { - /* if the index is in bounds, add it to the scale counter */ - if ((j + cmatrix_middle - row >= 0) && - (j + cmatrix_middle - row < cmatrix_length)) - scale += cmatrix[j + cmatrix_middle - row]; - } - for (i = 0; i= row - cmatrix_middle) && - (j <= row + cmatrix_middle)) - sum += cur_col[j*bytes + i] * cmatrix[j]; - } - dest_col[row*bytes + i] = (BYTE)(0.5f + sum / scale); - } - } - } - else - { - /* for the edge condition, we only use available info and scale to one */ - for (row = 0; row < cmatrix_middle; row++) - { - /* find scale factor */ - scale=0; - for (j = cmatrix_middle - row; j0; j--) - { - sum += *(ctable_p + *cur_col_p1); - cur_col_p1 += bytes; - ctable_p += 256; - } - cur_col_p++; - *(dest_col_p++) = (BYTE)(0.5f + sum); - } - } - - /* for the edge condition , we only use available info, and scale to one */ - for (; row < y; row++) - { - /* find scale factor */ - scale=0; - for (j = 0; j< y-row + cmatrix_middle; j++) - scale += cmatrix[j]; - for (i = 0; ihead.biWidth; - ymax = iSrc->head.biHeight; - - if (xmin==xmax || ymin==ymax) return; - - nmin = xmin * bytes; - nmax = xmax * bytes; - - CImageIterator itSrc(iSrc); - CImageIterator itTmp(iDst); - - double dbScaler = 100.0f/(ymax-ymin)/bytes; - - for (n=0; n=pivot){ - while (z1) ? ((m/bytes)/decay+1) : m/bytes; - if (m>max_depth) m = max_depth; - step = (BYTE)((pSrc[x+bytes]-pSrc[x])/(m+1)); - while (m-->1){ - pDst[x+m*bytes] = (BYTE)(pDst[x]+(step*(m+1))); - } - } - //find lower corner - z=x+bytes; - if (pSrc[x]=pivot){ - while (z1) ? ((m/bytes)/decay+1) : m/bytes; - if (m>max_depth) m = max_depth; - step = (BYTE)((pSrc[x+bytes]-pSrc[x])/(m+1)); - while (m-->1){ - pDst[x+m*bytes] = (BYTE)(pDst[x]+(step*(m+1))); - } - } - } - //scan right to left - for (x=nmax-1-n /*,i=(xmax-1)*/; x>0; x-=bytes /*,i--*/) - { - z=x-bytes; - pivot = pSrc[z]-threshold; - //find upper corner - if (pSrc[x]=pivot){ - while (z>n && pSrc2[z]1) ? ((m/bytes)/decay+1) : m/bytes; - if (m>max_depth) m = max_depth; - step = (BYTE)((pSrc[x-bytes]-pSrc[x])/(m+1)); - while (m-->1){ - pDst[x-m*bytes] = (BYTE)(pDst[x]+(step*(m+1))); - } - } - //find lower corner - z=x-bytes; - if (pSrc[x]=pivot){ - while (z>n && pSrc3[z]1) ? ((m/bytes)/decay+1) : m/bytes; - if (m>max_depth) m = max_depth; - step = (BYTE)((pSrc[x-bytes]-pSrc[x])/(m+1)); - while (m-->1){ - pDst[x-m*bytes] = (BYTE)(pDst[x]+(step*(m+1))); - } - } - } - } - } -} -//////////////////////////////////////////////////////////////////////////////// -/** - * \author [DP] - */ -bool CxImage::TextBlur(BYTE threshold, BYTE decay, BYTE max_depth, bool bBlurHorizontal, bool bBlurVertical, CxImage* iDst) -{ - if (!pDib) return false; - - RGBQUAD* pPalette=NULL; - WORD bpp = GetBpp(); - - //the routine is optimized for RGB or GrayScale images - if (!(head.biBitCount == 24 || IsGrayScale())){ - pPalette = new RGBQUAD[head.biClrUsed]; - memcpy(pPalette, GetPalette(),GetPaletteSize()); - if (!IncreaseBpp(24)) - return false; - } - - CxImage tmp(*this); - if (!tmp.IsValid()){ - strcpy(info.szLastError,tmp.GetLastError()); - return false; - } - - if (bBlurHorizontal) - blur_text(threshold, decay, max_depth, this, &tmp, head.biBitCount>>3); - - if (bBlurVertical){ - CxImage src2(*this); - src2.RotateLeft(); - tmp.RotateLeft(); - blur_text(threshold, decay, max_depth, &src2, &tmp, head.biBitCount>>3); - tmp.RotateRight(); - } - -#if CXIMAGE_SUPPORT_SELECTION - //restore the non selected region - if (pSelection){ - for(long y=0; yTransfer(tmp); - else Transfer(tmp); - - return true; -} -//////////////////////////////////////////////////////////////////////////////// -/** - * \author [nipper]; changes [DP] - */ -bool CxImage::GaussianBlur(float radius /*= 1.0f*/, CxImage* iDst /*= 0*/) -{ - if (!pDib) return false; - - RGBQUAD* pPalette=NULL; - WORD bpp = GetBpp(); - - //the routine is optimized for RGB or GrayScale images - if (!(head.biBitCount == 24 || IsGrayScale())){ - pPalette = new RGBQUAD[head.biClrUsed]; - memcpy(pPalette, GetPalette(),GetPaletteSize()); - if (!IncreaseBpp(24)) - return false; - } - - CxImage tmp_x(*this, false, true, true); - if (!tmp_x.IsValid()){ - strcpy(info.szLastError,tmp_x.GetLastError()); - return false; - } - - // generate convolution matrix and make sure it's smaller than each dimension - float *cmatrix = NULL; - int cmatrix_length = gen_convolve_matrix(radius, &cmatrix); - // generate lookup table - float *ctable = gen_lookup_table(cmatrix, cmatrix_length); - - long x,y; - int bypp = head.biBitCount>>3; - - CImageIterator itSrc(this); - CImageIterator itTmp(&tmp_x); - - double dbScaler = 50.0f/head.biHeight; - - // blur the rows - for (y=0;yTransfer(tmp_y); - else Transfer(tmp_y); - - return true; -} -//////////////////////////////////////////////////////////////////////////////// -/** - * \author [DP],[nipper] - */ -bool CxImage::SelectiveBlur(float radius, BYTE threshold, CxImage* iDst) -{ - if (!pDib) return false; - - RGBQUAD* pPalette=NULL; - WORD bpp = GetBpp(); - - CxImage Tmp(*this, true, true, true); - if (!Tmp.IsValid()){ - strcpy(info.szLastError,Tmp.GetLastError()); - return false; - } - - //the routine is optimized for RGB or GrayScale images - if (!(head.biBitCount == 24 || IsGrayScale())){ - pPalette = new RGBQUAD[head.biClrUsed]; - memcpy(pPalette, GetPalette(),GetPaletteSize()); - if (!Tmp.IncreaseBpp(24)) - return false; - } - - CxImage Dst(Tmp, true, true, true); - if (!Dst.IsValid()){ - strcpy(info.szLastError,Dst.GetLastError()); - return false; - } - - //build the difference mask - BYTE thresh_dw = (BYTE)max( 0 ,(int)(128 - threshold)); - BYTE thresh_up = (BYTE)min(255,(int)(128 + threshold)); - long kernel[]={-100,-100,-100,-100,801,-100,-100,-100,-100}; - if (!Tmp.Filter(kernel,3,800,128)){ - strcpy(info.szLastError,Tmp.GetLastError()); - return false; - } - - //if the image has no selection, build a selection for the whole image - if (!Tmp.SelectionIsValid()){ - Tmp.SelectionCreate(); - Tmp.SelectionClear(255); - } - - long xmin,xmax,ymin,ymax; - xmin = Tmp.info.rSelectionBox.left; - xmax = Tmp.info.rSelectionBox.right; - ymin = Tmp.info.rSelectionBox.bottom; - ymax = Tmp.info.rSelectionBox.top; - - //modify the selection where the difference mask is over the threshold - for(long y=ymin; y thresh_up) || - (c.rgbGreen < thresh_dw || c.rgbGreen > thresh_up) || - (c.rgbBlue < thresh_dw || c.rgbBlue > thresh_up)) - { - Tmp.SelectionSet(x,y,0); - } - } - } - } - - //blur the image (only in the selected pixels) - Dst.SelectionCopy(Tmp); - if (!Dst.GaussianBlur(radius)){ - strcpy(info.szLastError,Dst.GetLastError()); - return false; - } - - //restore the original selection - Dst.SelectionCopy(*this); - - //if necessary, restore the original BPP and palette - if (pPalette){ - Dst.DecreaseBpp(bpp, false, pPalette); - delete [] pPalette; - } - - if (iDst) iDst->Transfer(Dst); - else Transfer(Dst); - - return true; -} -//////////////////////////////////////////////////////////////////////////////// -/** - * sharpen the image by subtracting a blurred copy from the original image. - * \param radius: width in pixels of the blurring effect. Range: >0; default = 5. - * \param amount: strength of the filter. Range: 0.0 (none) to 1.0 (max); default = 0.5 - * \param threshold: difference, between blurred and original pixel, to trigger the filter - * Range: 0 (always triggered) to 255 (never triggered); default = 0. - * \return true if everything is ok - * \author [nipper]; changes [DP] - */ -bool CxImage::UnsharpMask(float radius /*= 5.0*/, float amount /*= 0.5*/, int threshold /*= 0*/) -{ - if (!pDib) return false; - - RGBQUAD* pPalette=NULL; - WORD bpp = GetBpp(); - - //the routine is optimized for RGB or GrayScale images - if (!(head.biBitCount == 24 || IsGrayScale())){ - pPalette = new RGBQUAD[head.biClrUsed]; - memcpy(pPalette, GetPalette(),GetPaletteSize()); - if (!IncreaseBpp(24)) - return false; - } - - CxImage iDst; - if (!GaussianBlur(radius,&iDst)) - return false; - - CImageIterator itSrc(this); - CImageIterator itDst(&iDst); - - long xmin,xmax,ymin,ymax; - if (pSelection){ - xmin = info.rSelectionBox.left; xmax = info.rSelectionBox.right; - ymin = info.rSelectionBox.bottom; ymax = info.rSelectionBox.top; - } else { - xmin = ymin = 0; - xmax = head.biWidth; ymax=head.biHeight; - } - - if (xmin==xmax || ymin==ymax) - return false; - - double dbScaler = 100.0/(ymax-ymin); - int bypp = head.biBitCount>>3; - - // merge the source and destination (which currently contains - // the blurred version) images - for (long y=ymin; y - for(long x=xmin; x1.0f) strength = 1.0f; - - for(long y=ymin; ylevel){ - BlindSetPixelIndex(x,y,255-index); - } - } - } - } - } else { //PALETTE, full image - RGBQUAD* ppal=GetPalette(); - for(DWORD i=0;ilevel){ - ppal[i].rgbBlue =(BYTE)(255-ppal[i].rgbBlue); - ppal[i].rgbGreen =(BYTE)(255-ppal[i].rgbGreen); - ppal[i].rgbRed =(BYTE)(255-ppal[i].rgbRed); - } - } else { - if (color.rgbBlue>level) ppal[i].rgbBlue =(BYTE)(255-ppal[i].rgbBlue); - if (color.rgbGreen>level) ppal[i].rgbGreen =(BYTE)(255-ppal[i].rgbGreen); - if (color.rgbRed>level) ppal[i].rgbRed =(BYTE)(255-ppal[i].rgbRed); - } - } - } - } else { //RGB, selection - for(long y=ymin; ylevel){ - color.rgbRed = (BYTE)(255-color.rgbRed); - color.rgbGreen = (BYTE)(255-color.rgbGreen); - color.rgbBlue = (BYTE)(255-color.rgbBlue); - } - } else { - if (color.rgbBlue>level) color.rgbBlue =(BYTE)(255-color.rgbBlue); - if (color.rgbGreen>level) color.rgbGreen =(BYTE)(255-color.rgbGreen); - if (color.rgbRed>level) color.rgbRed =(BYTE)(255-color.rgbRed); - } - BlindSetPixelColor(x,y,color); - } - } - } - } - - //invert transparent color only in case of full image processing - if (pSelection==0 || (!IsGrayScale() && IsIndexed())){ - if (bLinkedChannels){ - if ((BYTE)RGB2GRAY(info.nBkgndColor.rgbRed,info.nBkgndColor.rgbGreen,info.nBkgndColor.rgbBlue)>level){ - info.nBkgndColor.rgbBlue = (BYTE)(255-info.nBkgndColor.rgbBlue); - info.nBkgndColor.rgbGreen = (BYTE)(255-info.nBkgndColor.rgbGreen); - info.nBkgndColor.rgbRed = (BYTE)(255-info.nBkgndColor.rgbRed); - } - } else { - if (info.nBkgndColor.rgbBlue>level) info.nBkgndColor.rgbBlue = (BYTE)(255-info.nBkgndColor.rgbBlue); - if (info.nBkgndColor.rgbGreen>level) info.nBkgndColor.rgbGreen = (BYTE)(255-info.nBkgndColor.rgbGreen); - if (info.nBkgndColor.rgbRed>level) info.nBkgndColor.rgbRed = (BYTE)(255-info.nBkgndColor.rgbRed); - } - } - - return true; -} - -//////////////////////////////////////////////////////////////////////////////// -/** - * Converts the RGB triplets to and from different colorspace - * \param dstColorSpace: destination colorspace; 0 = RGB, 1 = HSL, 2 = YUV, 3 = YIQ, 4 = XYZ - * \param srcColorSpace: source colorspace; 0 = RGB, 1 = HSL, 2 = YUV, 3 = YIQ, 4 = XYZ - * \return true if everything is ok - */ -bool CxImage::ConvertColorSpace(const long dstColorSpace, const long srcColorSpace) -{ - if (!pDib) - return false; - - if (dstColorSpace == srcColorSpace) - return true; - - long w = GetWidth(); - long h = GetHeight(); - - for (long y=0;yIsValid() || - !pContrastMask->IsGrayScale() || - pContrastMask->GetWidth() != GetWidth() || - pContrastMask->GetHeight() != GetHeight()){ - strcpy(info.szLastError,"OptimalThreshold invalid ContrastMask"); - return -1; - } - } - - long xmin,xmax,ymin,ymax; - if (pBox){ - xmin = max(pBox->left,0); - xmax = min(pBox->right,head.biWidth); - ymin = max(pBox->bottom,0); - ymax = min(pBox->top,head.biHeight); - } else { - xmin = ymin = 0; - xmax = head.biWidth; ymax=head.biHeight; - } - - if (xmin>=xmax || ymin>=ymax) - return -1; - - double p[256]; - memset(p, 0, 256*sizeof(double)); - //build histogram - for (long y = ymin; yGetBits(y) + xmin; - for (long x = xmin; x0 && p[gray_max]==0) gray_max--; - if (gray_min > gray_max) - return -1; - if (gray_min == gray_max){ - if (gray_min == 0) - return 0; - else - return gray_max-1; - } - - //compute total moments 0th,1st,2nd order - int i,k; - double w_tot = 0; - double m_tot = 0; - double q_tot = 0; - for (i = gray_min; i <= gray_max; i++){ - w_tot += p[i]; - m_tot += i*p[i]; - q_tot += i*i*p[i]; - } - - double L, L1max, L2max, L3max, L4max; //objective functions - int th1,th2,th3,th4; //optimal thresholds - L1max = L2max = L3max = L4max = 0; - th1 = th2 = th3 = th4 = -1; - - double w1, w2, m1, m2, q1, q2, s1, s2; - w1 = m1 = q1 = 0; - for (i = gray_min; i < gray_max; i++){ - w1 += p[i]; - w2 = w_tot - w1; - m1 += i*p[i]; - m2 = m_tot - m1; - q1 += i*i*p[i]; - q2 = q_tot - q1; - s1 = q1/w1-m1*m1/w1/w1; //s1 = q1/w1-pow(m1/w1,2); - s2 = q2/w2-m2*m2/w2/w2; //s2 = q2/w2-pow(m2/w2,2); - - //Otsu - L = -(s1*w1 + s2*w2); //implemented as definition - //L = w1 * w2 * (m2/w2 - m1/w1)*(m2/w2 - m1/w1); //implementation that doesn't need s1 & s2 - if (L1max < L || th1<0){ - L1max = L; - th1 = i; - } - - //Kittler and Illingworth - if (s1>0 && s2>0){ - L = w1*log(w1/sqrt(s1))+w2*log(w2/sqrt(s2)); - //L = w1*log(w1*w1/s1)+w2*log(w2*w2/s2); - if (L2max < L || th2<0){ - L2max = L; - th2 = i; - } - } - - //max entropy - L = 0; - for (k=gray_min;k<=i;k++) if (p[k] > 0) L -= p[k]*log(p[k]/w1)/w1; - for (k;k<=gray_max;k++) if (p[k] > 0) L -= p[k]*log(p[k]/w2)/w2; - if (L3max < L || th3<0){ - L3max = L; - th3 = i; - } - - //potential difference (based on Electrostatic Binarization method by J. Acharya & G. Sreechakra) - // L=-fabs(vdiff/vsum); è molto selettivo, sembra che L=-fabs(vdiff) o L=-(vsum) - // abbiano lo stesso valore di soglia... il che semplificherebbe molto la routine - double vdiff = 0; - for (k=gray_min;k<=i;k++) - vdiff += p[k]*(i-k)*(i-k); - double vsum = vdiff; - for (k;k<=gray_max;k++){ - double dv = p[k]*(k-i)*(k-i); - vdiff -= dv; - vsum += dv; - } - if (vsum>0) L = -fabs(vdiff/vsum); else L = 0; - if (L4max < L || th4<0){ - L4max = L; - th4 = i; - } - } - - int threshold; - switch (method){ - case 1: //Otsu - threshold = th1; - break; - case 2: //Kittler and Illingworth - threshold = th2; - break; - case 3: //max entropy - threshold = th3; - break; - case 4: //potential difference - threshold = th4; - break; - default: //auto - { - int nt = 0; - threshold = 0; - if (th1>=0) { threshold += th1; nt++;} - if (th2>=0) { threshold += th2; nt++;} - if (th3>=0) { threshold += th3; nt++;} - if (th4>=0) { threshold += th4; nt++;} - if (nt) - threshold /= nt; - else - threshold = (gray_min+gray_max)/2; - - /*better(?) but really expensive alternative: - n = 0:255; - pth1 = c1(th1)/sqrt(2*pi*s1(th1))*exp(-((n - m1(th1)).^2)/2/s1(th1)) + c2(th1)/sqrt(2*pi*s2(th1))*exp(-((n - m2(th1)).^2)/2/s2(th1)); - pth2 = c1(th2)/sqrt(2*pi*s1(th2))*exp(-((n - m1(th2)).^2)/2/s1(th2)) + c2(th2)/sqrt(2*pi*s2(th2))*exp(-((n - m2(th2)).^2)/2/s2(th2)); - ... - mse_th1 = sum((p-pth1).^2); - mse_th2 = sum((p-pth2).^2); - ... - select th# that gives minimum mse_th# - */ - - } - } - - if (threshold <= gray_min || threshold >= gray_max) - threshold = (gray_min+gray_max)/2; - - return threshold; -} -/////////////////////////////////////////////////////////////////////////////// -/** - * Converts the image to B&W, using an optimal threshold mask - * \param method: 0 = average all methods (default); 1 = Otsu; 2 = Kittler & Illingworth; 3 = max entropy; 4 = potential difference; - * \param nBoxSize: the image is divided into "nBoxSize x nBoxSize" blocks, from where the threshold is computed; min = 8; default = 64. - * \param pContrastMask: limit the computation only in regions with contrasted (!=0) pixels; default = 0. - * \param nBias: global offset added to the threshold mask; default = 0. - * \param fGlobalLocalBalance: balance between local and global threshold. default = 0.5 - * fGlobalLocalBalance can be from 0.0 (use only local threshold) to 1.0 (use only global threshold) - * the pContrastMask image must be grayscale with same with and height of the current image, - * \return true if everything is ok. - * \sa OptimalThreshold - */ -bool CxImage::AdaptiveThreshold(long method, long nBoxSize, CxImage* pContrastMask, long nBias, float fGlobalLocalBalance) -{ - if (!pDib) - return false; - - if (pContrastMask){ - if (!pContrastMask->IsValid() || - !pContrastMask->IsGrayScale() || - pContrastMask->GetWidth() != GetWidth() || - pContrastMask->GetHeight() != GetHeight()){ - strcpy(info.szLastError,"AdaptiveThreshold invalid ContrastMask"); - return false; - } - } - - if (nBoxSize<8) nBoxSize = 8; - if (fGlobalLocalBalance<0.0f) fGlobalLocalBalance = 0.0f; - if (fGlobalLocalBalance>1.0f) fGlobalLocalBalance = 1.0f; - - long mw = (head.biWidth + nBoxSize - 1)/nBoxSize; - long mh = (head.biHeight + nBoxSize - 1)/nBoxSize; - - CxImage mask(mw,mh,8); - if(!mask.GrayScale()) - return false; - - if(!GrayScale()) - return false; - - int globalthreshold = OptimalThreshold(method, 0, pContrastMask); - if (globalthreshold <0) - return false; - - for (long y=0; y -//////////////////////////////////////////////////////////////////////////////// -/** - * Flood Fill - * \param xStart, yStart: starting point - * \param cFillColor: filling color - * \param nTolerance: deviation from the starting point color - * \param nOpacity: can be from 0 (transparent) to 255 (opaque, default) - * \param bSelectFilledArea: if true, the pixels in the region are also set in the selection layer; default = false - * \param nSelectionLevel: if bSelectFilledArea is true, the selected pixels are set to nSelectionLevel; default = 255 - * Note: nOpacity=0 && bSelectFilledArea=true act as a "magic wand" - * \return true if everything is ok - */ -bool CxImage::FloodFill(const long xStart, const long yStart, const RGBQUAD cFillColor, const BYTE nTolerance, - BYTE nOpacity, const bool bSelectFilledArea, const BYTE nSelectionLevel) -{ - if (!pDib) - return false; - - if (!IsInside(xStart,yStart)) - return true; - -#if CXIMAGE_SUPPORT_SELECTION - if (!SelectionIsInside(xStart,yStart)) - return true; -#endif //CXIMAGE_SUPPORT_SELECTION - - RGBQUAD* pPalette=NULL; - WORD bpp = GetBpp(); - //nTolerance or nOpacity implemented only for grayscale or 24bpp images - if ((nTolerance || nOpacity != 255) && !(head.biBitCount == 24 || IsGrayScale())){ - pPalette = new RGBQUAD[head.biClrUsed]; - memcpy(pPalette, GetPalette(),GetPaletteSize()); - if (!IncreaseBpp(24)) - return false; - } - - BYTE* pFillMask = (BYTE*)calloc(head.biWidth * head.biHeight,1); - if (!pFillMask) - return false; - -//------------------------------------- Begin of Flood Fill - POINT offset[4] = {{-1,0},{0,-1},{1,0},{0,1}}; - std::queue q; - POINT point = {xStart,yStart}; - q.push(point); - - if (IsIndexed()){ //--- Generic indexed image, no tolerance OR Grayscale image with tolerance - BYTE idxRef = GetPixelIndex(xStart,yStart); - BYTE idxFill = GetNearestIndex(cFillColor); - BYTE idxMin = (BYTE)min(255, max(0,(int)(idxRef - nTolerance))); - BYTE idxMax = (BYTE)min(255, max(0,(int)(idxRef + nTolerance))); - - while(!q.empty()) - { - point = q.front(); - q.pop(); - - for (int z=0; z<4; z++){ - int x = point.x + offset[z].x; - int y = point.y + offset[z].y; - if(IsInside(x,y)){ -#if CXIMAGE_SUPPORT_SELECTION - if (BlindSelectionIsInside(x,y)) -#endif //CXIMAGE_SUPPORT_SELECTION - { - BYTE idx = BlindGetPixelIndex(x, y); - BYTE* pFill = pFillMask + x + y * head.biWidth; - if (*pFill==0 && idxMin <= idx && idx <= idxMax ) - { - if (nOpacity>0){ - if (nOpacity == 255) - BlindSetPixelIndex(x, y, idxFill); - else - BlindSetPixelIndex(x, y, (BYTE)((idxFill * nOpacity + idx * (255-nOpacity))>>8)); - } - POINT pt = {x,y}; - q.push(pt); - *pFill = 1; - } - } - } - } - } - } else { //--- RGB image - RGBQUAD cRef = GetPixelColor(xStart,yStart); - RGBQUAD cRefMin, cRefMax; - cRefMin.rgbRed = (BYTE)min(255, max(0,(int)(cRef.rgbRed - nTolerance))); - cRefMin.rgbGreen = (BYTE)min(255, max(0,(int)(cRef.rgbGreen - nTolerance))); - cRefMin.rgbBlue = (BYTE)min(255, max(0,(int)(cRef.rgbBlue - nTolerance))); - cRefMax.rgbRed = (BYTE)min(255, max(0,(int)(cRef.rgbRed + nTolerance))); - cRefMax.rgbGreen = (BYTE)min(255, max(0,(int)(cRef.rgbGreen + nTolerance))); - cRefMax.rgbBlue = (BYTE)min(255, max(0,(int)(cRef.rgbBlue + nTolerance))); - - while(!q.empty()) - { - point = q.front(); - q.pop(); - - for (int z=0; z<4; z++){ - int x = point.x + offset[z].x; - int y = point.y + offset[z].y; - if(IsInside(x,y)){ -#if CXIMAGE_SUPPORT_SELECTION - if (BlindSelectionIsInside(x,y)) -#endif //CXIMAGE_SUPPORT_SELECTION - { - RGBQUAD cc = BlindGetPixelColor(x, y); - BYTE* pFill = pFillMask + x + y * head.biWidth; - if (*pFill==0 && - cRefMin.rgbRed <= cc.rgbRed && cc.rgbRed <= cRefMax.rgbRed && - cRefMin.rgbGreen <= cc.rgbGreen && cc.rgbGreen <= cRefMax.rgbGreen && - cRefMin.rgbBlue <= cc.rgbBlue && cc.rgbBlue <= cRefMax.rgbBlue ) - { - if (nOpacity>0){ - if (nOpacity == 255) - BlindSetPixelColor(x, y, cFillColor); - else - { - cc.rgbRed = (BYTE)((cFillColor.rgbRed * nOpacity + cc.rgbRed * (255-nOpacity))>>8); - cc.rgbGreen = (BYTE)((cFillColor.rgbGreen * nOpacity + cc.rgbGreen * (255-nOpacity))>>8); - cc.rgbBlue = (BYTE)((cFillColor.rgbBlue * nOpacity + cc.rgbBlue * (255-nOpacity))>>8); - BlindSetPixelColor(x, y, cc); - } - } - POINT pt = {x,y}; - q.push(pt); - *pFill = 1; - } - } - } - } - } - } - if (pFillMask[xStart+yStart*head.biWidth] == 0 && nOpacity>0){ - if (nOpacity == 255) - BlindSetPixelColor(xStart, yStart, cFillColor); - else - { - RGBQUAD cc = BlindGetPixelColor(xStart, yStart); - cc.rgbRed = (BYTE)((cFillColor.rgbRed * nOpacity + cc.rgbRed * (255-nOpacity))>>8); - cc.rgbGreen = (BYTE)((cFillColor.rgbGreen * nOpacity + cc.rgbGreen * (255-nOpacity))>>8); - cc.rgbBlue = (BYTE)((cFillColor.rgbBlue * nOpacity + cc.rgbBlue * (255-nOpacity))>>8); - BlindSetPixelColor(xStart, yStart, cc); - } - } - pFillMask[xStart+yStart*head.biWidth] = 1; -//------------------------------------- End of Flood Fill - - //if necessary, restore the original BPP and palette - if (pPalette){ - DecreaseBpp(bpp, false, pPalette); - delete [] pPalette; - } - -#if CXIMAGE_SUPPORT_SELECTION - if (bSelectFilledArea){ - if (!SelectionIsValid()){ - if (!SelectionCreate()){ - return false; - } - SelectionClear(); - info.rSelectionBox.right = head.biWidth; - info.rSelectionBox.top = head.biHeight; - info.rSelectionBox.left = info.rSelectionBox.bottom = 0; - } - RECT r; - SelectionGetBox(r); - for (long y = r.bottom; y < r.top; y++){ - BYTE* pFill = pFillMask + r.left + y * head.biWidth; - for (long x = r.left; x - WMF/EMF support -#endif - -#if CXIMAGE_SUPPORT_JBG -#include "ximajbg.h" -#endif - -#if CXIMAGE_SUPPORT_JASPER -#include "ximajas.h" -#endif - -#if CXIMAGE_SUPPORT_SKA -#include "ximaska.h" -#endif - -#if CXIMAGE_SUPPORT_RAW -#include "ximaraw.h" -#endif - -//////////////////////////////////////////////////////////////////////////////// -#if CXIMAGE_SUPPORT_ENCODE -//////////////////////////////////////////////////////////////////////////////// -bool CxImage::EncodeSafeCheck(CxFile *hFile) -{ - if (hFile==NULL) { - strcpy(info.szLastError,CXIMAGE_ERR_NOFILE); - return true; - } - - if (pDib==NULL){ - strcpy(info.szLastError,CXIMAGE_ERR_NOIMAGE); - return true; - } - return false; -} -//////////////////////////////////////////////////////////////////////////////// -//#ifdef WIN32 -//bool CxImage::Save(LPCWSTR filename, DWORD imagetype) -//{ -// FILE* hFile; //file handle to write the image -// if ((hFile=_wfopen(filename,L"wb"))==NULL) return false; -// bool bOK = Encode(hFile,imagetype); -// fclose(hFile); -// return bOK; -//} -//#endif //WIN32 -//////////////////////////////////////////////////////////////////////////////// -// For UNICODE support: char -> TCHAR -/** - * Saves to disk the image in a specific format. - * \param filename: file name - * \param imagetype: file format, see ENUM_CXIMAGE_FORMATS - * \return true if everything is ok - */ -bool CxImage::Save(const TCHAR * filename, DWORD imagetype) -{ - FILE* hFile; //file handle to write the image - -#ifdef WIN32 - if ((hFile=_tfopen(filename,_T("wb")))==NULL) return false; // For UNICODE support -#else - if ((hFile=fopen(filename,"wb"))==NULL) return false; -#endif - - bool bOK = Encode(hFile,imagetype); - fclose(hFile); - return bOK; -} -//////////////////////////////////////////////////////////////////////////////// -/** - * Saves to disk the image in a specific format. - * \param hFile: file handle, open and enabled for writing. - * \param imagetype: file format, see ENUM_CXIMAGE_FORMATS - * \return true if everything is ok - */ -bool CxImage::Encode(FILE *hFile, DWORD imagetype) -{ - CxIOFile file(hFile); - return Encode(&file,imagetype); -} -//////////////////////////////////////////////////////////////////////////////// -/** - * Saves to memory buffer the image in a specific format. - * \param buffer: output memory buffer pointer. Must be NULL, - * the function allocates and fill the memory, - * the application must free the buffer, see also FreeMemory(). - * \param size: output memory buffer size. - * \param imagetype: file format, see ENUM_CXIMAGE_FORMATS - * \return true if everything is ok - */ -bool CxImage::Encode(BYTE * &buffer, long &size, DWORD imagetype) -{ - if (buffer!=NULL){ - strcpy(info.szLastError,"the buffer must be empty"); - return false; - } - CxMemFile file; - file.Open(); - if(Encode(&file,imagetype)){ - buffer=file.GetBuffer(); - size=file.Size(); - return true; - } - return false; -} -//////////////////////////////////////////////////////////////////////////////// -/** - * Saves to disk the image in a specific format. - * \param hFile: file handle (CxMemFile or CxIOFile), with write access. - * \param imagetype: file format, see ENUM_CXIMAGE_FORMATS - * \return true if everything is ok - * \sa ENUM_CXIMAGE_FORMATS - */ -bool CxImage::Encode(CxFile *hFile, DWORD imagetype) -{ - -#if CXIMAGE_SUPPORT_BMP - - if (imagetype==CXIMAGE_FORMAT_BMP){ - CxImageBMP newima; - newima.Ghost(this); - if (newima.Encode(hFile)){ - return true; - } else { - strcpy(info.szLastError,newima.GetLastError()); - return false; - } - } -#endif -#if CXIMAGE_SUPPORT_ICO - if (imagetype==CXIMAGE_FORMAT_ICO){ - CxImageICO newima; - newima.Ghost(this); - if (newima.Encode(hFile)){ - return true; - } else { - strcpy(info.szLastError,newima.GetLastError()); - return false; - } - } -#endif -#if CXIMAGE_SUPPORT_TIF - if (imagetype==CXIMAGE_FORMAT_TIF){ - CxImageTIF newima; - newima.Ghost(this); - if (newima.Encode(hFile)){ - return true; - } else { - strcpy(info.szLastError,newima.GetLastError()); - return false; - } - } -#endif -#if CXIMAGE_SUPPORT_JPG - if (imagetype==CXIMAGE_FORMAT_JPG){ - CxImageJPG newima; - newima.Ghost(this); - if (newima.Encode(hFile)){ - return true; - } else { - strcpy(info.szLastError,newima.GetLastError()); - return false; - } - } -#endif -#if CXIMAGE_SUPPORT_GIF - if (imagetype==CXIMAGE_FORMAT_GIF){ - CxImageGIF newima; - newima.Ghost(this); - if (newima.Encode(hFile)){ - return true; - } else { - strcpy(info.szLastError,newima.GetLastError()); - return false; - } - } -#endif -#if CXIMAGE_SUPPORT_PNG - if (imagetype==CXIMAGE_FORMAT_PNG){ - CxImagePNG newima; - newima.Ghost(this); - if (newima.Encode(hFile)){ - return true; - } else { - strcpy(info.szLastError,newima.GetLastError()); - return false; - } - } -#endif -#if CXIMAGE_SUPPORT_MNG - if (imagetype==CXIMAGE_FORMAT_MNG){ - CxImageMNG newima; - newima.Ghost(this); - if (newima.Encode(hFile)){ - return true; - } else { - strcpy(info.szLastError,newima.GetLastError()); - return false; - } - } -#endif -#if CXIMAGE_SUPPORT_TGA - if (imagetype==CXIMAGE_FORMAT_TGA){ - CxImageTGA newima; - newima.Ghost(this); - if (newima.Encode(hFile)){ - return true; - } else { - strcpy(info.szLastError,newima.GetLastError()); - return false; - } - } -#endif -#if CXIMAGE_SUPPORT_PCX - if (imagetype==CXIMAGE_FORMAT_PCX){ - CxImagePCX newima; - newima.Ghost(this); - if (newima.Encode(hFile)){ - return true; - } else { - strcpy(info.szLastError,newima.GetLastError()); - return false; - } - } -#endif -#if CXIMAGE_SUPPORT_WBMP - if (imagetype==CXIMAGE_FORMAT_WBMP){ - CxImageWBMP newima; - newima.Ghost(this); - if (newima.Encode(hFile)){ - return true; - } else { - strcpy(info.szLastError,newima.GetLastError()); - return false; - } - } -#endif -#if CXIMAGE_SUPPORT_WMF && CXIMAGE_SUPPORT_WINDOWS // - WMF/EMF support - if (imagetype==CXIMAGE_FORMAT_WMF){ - CxImageWMF newima; - newima.Ghost(this); - if (newima.Encode(hFile)){ - return true; - } else { - strcpy(info.szLastError,newima.GetLastError()); - return false; - } - } -#endif -#if CXIMAGE_SUPPORT_JBG - if (imagetype==CXIMAGE_FORMAT_JBG){ - CxImageJBG newima; - newima.Ghost(this); - if (newima.Encode(hFile)){ - return true; - } else { - strcpy(info.szLastError,newima.GetLastError()); - return false; - } - } -#endif -#if CXIMAGE_SUPPORT_JASPER - if ( - #if CXIMAGE_SUPPORT_JP2 - imagetype==CXIMAGE_FORMAT_JP2 || - #endif - #if CXIMAGE_SUPPORT_JPC - imagetype==CXIMAGE_FORMAT_JPC || - #endif - #if CXIMAGE_SUPPORT_PGX - imagetype==CXIMAGE_FORMAT_PGX || - #endif - #if CXIMAGE_SUPPORT_PNM - imagetype==CXIMAGE_FORMAT_PNM || - #endif - #if CXIMAGE_SUPPORT_RAS - imagetype==CXIMAGE_FORMAT_RAS || - #endif - false ){ - CxImageJAS newima; - newima.Ghost(this); - if (newima.Encode(hFile,imagetype)){ - return true; - } else { - strcpy(info.szLastError,newima.GetLastError()); - return false; - } - } -#endif - -#if CXIMAGE_SUPPORT_SKA - if (imagetype==CXIMAGE_FORMAT_SKA){ - CxImageSKA newima; - newima.Ghost(this); - if (newima.Encode(hFile)){ - return true; - } else { - strcpy(info.szLastError,newima.GetLastError()); - return false; - } - } -#endif - -#if CXIMAGE_SUPPORT_RAW - if (imagetype==CXIMAGE_FORMAT_RAW){ - CxImageRAW newima; - newima.Ghost(this); - if (newima.Encode(hFile)){ - return true; - } else { - strcpy(info.szLastError,newima.GetLastError()); - return false; - } - } -#endif - - strcpy(info.szLastError,"Encode: Unknown format"); - return false; -} -//////////////////////////////////////////////////////////////////////////////// -/** - * Saves to disk or memory pagecount images, referenced by an array of CxImage pointers. - * \param hFile: file handle. - * \param pImages: array of CxImage pointers. - * \param pagecount: number of images. - * \param imagetype: can be CXIMAGE_FORMAT_TIF or CXIMAGE_FORMAT_GIF. - * \return true if everything is ok - */ -bool CxImage::Encode(FILE * hFile, CxImage ** pImages, int pagecount, DWORD imagetype) -{ - CxIOFile file(hFile); - return Encode(&file, pImages, pagecount,imagetype); -} -//////////////////////////////////////////////////////////////////////////////// -/** - * Saves to disk or memory pagecount images, referenced by an array of CxImage pointers. - * \param hFile: file handle (CxMemFile or CxIOFile), with write access. - * \param pImages: array of CxImage pointers. - * \param pagecount: number of images. - * \param imagetype: can be CXIMAGE_FORMAT_TIF, CXIMAGE_FORMAT_GIF or CXIMAGE_FORMAT_ICO. - * \return true if everything is ok - */ -bool CxImage::Encode(CxFile * hFile, CxImage ** pImages, int pagecount, DWORD imagetype) -{ -#if CXIMAGE_SUPPORT_TIF - if (imagetype==CXIMAGE_FORMAT_TIF){ - CxImageTIF newima; - newima.Ghost(this); - if (newima.Encode(hFile,pImages,pagecount)){ - return true; - } else { - strcpy(info.szLastError,newima.GetLastError()); - return false; - } - } -#endif -#if CXIMAGE_SUPPORT_GIF - if (imagetype==CXIMAGE_FORMAT_GIF){ - CxImageGIF newima; - newima.Ghost(this); - if (newima.Encode(hFile,pImages,pagecount)){ - return true; - } else { - strcpy(info.szLastError,newima.GetLastError()); - return false; - } - } -#endif -#if CXIMAGE_SUPPORT_ICO - if (imagetype==CXIMAGE_FORMAT_ICO){ - CxImageICO newima; - newima.Ghost(this); - if (newima.Encode(hFile,pImages,pagecount)){ - return true; - } else { - strcpy(info.szLastError,newima.GetLastError()); - return false; - } - } -#endif - strcpy(info.szLastError,"Multipage Encode, Unsupported operation for this format"); - return false; -} - -//////////////////////////////////////////////////////////////////////////////// -/** - * exports the image into a RGBA buffer, Useful for OpenGL applications. - * \param buffer: output memory buffer pointer. Must be NULL, - * the function allocates and fill the memory, - * the application must free the buffer, see also FreeMemory(). - * \param size: output memory buffer size. - * \param bFlipY: direction of Y axis. default = false. - * \return true if everything is ok - */ -bool CxImage::Encode2RGBA(BYTE * &buffer, long &size, bool bFlipY) -{ - if (buffer!=NULL){ - strcpy(info.szLastError,"the buffer must be empty"); - return false; - } - CxMemFile file; - file.Open(); - if(Encode2RGBA(&file,bFlipY)){ - buffer=file.GetBuffer(); - size=file.Size(); - return true; - } - return false; -} -//////////////////////////////////////////////////////////////////////////////// -/** - * exports the image into a RGBA buffer, Useful for OpenGL applications. - * \param hFile: file handle (CxMemFile or CxIOFile), with write access. - * \param bFlipY: direction of Y axis. default = false. - * \return true if everything is ok - */ -bool CxImage::Encode2RGBA(CxFile *hFile, bool bFlipY) -{ - if (EncodeSafeCheck(hFile)) return false; - - for (long y1 = 0; y1 < head.biHeight; y1++) { - long y = bFlipY ? head.biHeight - 1 - y1 : y1; - for(long x = 0; x < head.biWidth; x++) { - RGBQUAD color = BlindGetPixelColor(x,y); - hFile->PutC(color.rgbRed); - hFile->PutC(color.rgbGreen); - hFile->PutC(color.rgbBlue); - hFile->PutC(color.rgbReserved); - } - } - return true; -} - -//////////////////////////////////////////////////////////////////////////////// -#endif //CXIMAGE_SUPPORT_ENCODE -//////////////////////////////////////////////////////////////////////////////// - -//////////////////////////////////////////////////////////////////////////////// -#if CXIMAGE_SUPPORT_DECODE -//////////////////////////////////////////////////////////////////////////////// -// For UNICODE support: char -> TCHAR -/** - * Reads from disk the image in a specific format. - * - If decoding fails using the specified image format, - * the function will try the automatic file format recognition. - * - * \param filename: file name - * \param imagetype: file format, see ENUM_CXIMAGE_FORMATS - * \return true if everything is ok - */ -bool CxImage::Load(const TCHAR * filename, DWORD imagetype) -//bool CxImage::Load(const char * filename, DWORD imagetype) -{ - /*FILE* hFile; //file handle to read the image - if ((hFile=fopen(filename,"rb"))==NULL) return false; - bool bOK = Decode(hFile,imagetype); - fclose(hFile);*/ - - /* automatic file type recognition */ - bool bOK = false; - if ( GetTypeIndexFromId(imagetype) ){ - FILE* hFile; //file handle to read the image - -#ifdef WIN32 - if ((hFile=_tfopen(filename,_T("rb")))==NULL) return false; // For UNICODE support -#else - if ((hFile=fopen(filename,"rb"))==NULL) return false; -#endif - - bOK = Decode(hFile,imagetype); - fclose(hFile); - if (bOK) return bOK; - } - - char szError[256]; - strcpy(szError,info.szLastError); //save the first error - - // if failed, try automatic recognition of the file... - FILE* hFile; - -#ifdef WIN32 - if ((hFile=_tfopen(filename,_T("rb")))==NULL) return false; // For UNICODE support -#else - if ((hFile=fopen(filename,"rb"))==NULL) return false; -#endif - - bOK = Decode(hFile,CXIMAGE_FORMAT_UNKNOWN); - fclose(hFile); - - if (!bOK && imagetype > 0) strcpy(info.szLastError,szError); //restore the first error - - return bOK; -} -//////////////////////////////////////////////////////////////////////////////// -#ifdef WIN32 -//bool CxImage::Load(LPCWSTR filename, DWORD imagetype) -//{ -// /*FILE* hFile; //file handle to read the image -// if ((hFile=_wfopen(filename, L"rb"))==NULL) return false; -// bool bOK = Decode(hFile,imagetype); -// fclose(hFile);*/ -// -// /* automatic file type recognition */ -// bool bOK = false; -// if ( GetTypeIndexFromId(imagetype) ){ -// FILE* hFile; //file handle to read the image -// if ((hFile=_wfopen(filename,L"rb"))==NULL) return false; -// bOK = Decode(hFile,imagetype); -// fclose(hFile); -// if (bOK) return bOK; -// } -// -// char szError[256]; -// strcpy(szError,info.szLastError); //save the first error -// -// // if failed, try automatic recognition of the file... -// FILE* hFile; //file handle to read the image -// if ((hFile=_wfopen(filename,L"rb"))==NULL) return false; -// bOK = Decode(hFile,CXIMAGE_FORMAT_UNKNOWN); -// fclose(hFile); -// -// if (!bOK && imagetype > 0) strcpy(info.szLastError,szError); //restore the first error -// -// return bOK; -//} -//////////////////////////////////////////////////////////////////////////////// -/** - * Loads an image from the application resources. - * \param hRes: the resource handle returned by FindResource(). - * \param imagetype: file format, see ENUM_CXIMAGE_FORMATS. - * \param hModule: NULL for internal resource, or external application/DLL hinstance returned by LoadLibray. - * \return true if everything is ok - */ -bool CxImage::LoadResource(HRSRC hRes, DWORD imagetype, HMODULE hModule) -{ - DWORD rsize=SizeofResource(hModule,hRes); - HGLOBAL hMem=::LoadResource(hModule,hRes); - if (hMem){ - char* lpVoid=(char*)LockResource(hMem); - if (lpVoid){ - // FILE* fTmp=tmpfile(); doesn't work with network - /*char tmpPath[MAX_PATH] = {0}; - char tmpFile[MAX_PATH] = {0}; - GetTempPath(MAX_PATH,tmpPath); - GetTempFileName(tmpPath,"IMG",0,tmpFile); - FILE* fTmp=fopen(tmpFile,"w+b"); - if (fTmp){ - fwrite(lpVoid,rsize,1,fTmp); - fseek(fTmp,0,SEEK_SET); - bool bOK = Decode(fTmp,imagetype); - fclose(fTmp); - DeleteFile(tmpFile); - return bOK; - }*/ - - CxMemFile fTmp((BYTE*)lpVoid,rsize); - return Decode(&fTmp,imagetype); - } - } else strcpy(info.szLastError,"Unable to load resource!"); - return false; -} -#endif //WIN32 -//////////////////////////////////////////////////////////////////////////////// -/** - * Constructor from file name, see Load() - * \param filename: file name - * \param imagetype: file format, see ENUM_CXIMAGE_FORMATS - */ -// -// > filename: file name -// > imagetype: specify the image format (CXIMAGE_FORMAT_BMP,...) -// For UNICODE support: char -> TCHAR -CxImage::CxImage(const TCHAR * filename, DWORD imagetype) -//CxImage::CxImage(const char * filename, DWORD imagetype) -{ - Startup(imagetype); - Load(filename,imagetype); -} -//////////////////////////////////////////////////////////////////////////////// -/** - * Constructor from file handle, see Decode() - * \param stream: file handle, with read access. - * \param imagetype: file format, see ENUM_CXIMAGE_FORMATS - */ -CxImage::CxImage(FILE * stream, DWORD imagetype) -{ - Startup(imagetype); - Decode(stream,imagetype); -} -//////////////////////////////////////////////////////////////////////////////// -/** - * Constructor from CxFile object, see Decode() - * \param stream: file handle (CxMemFile or CxIOFile), with read access. - * \param imagetype: file format, see ENUM_CXIMAGE_FORMATS - */ -CxImage::CxImage(CxFile * stream, DWORD imagetype) -{ - Startup(imagetype); - Decode(stream,imagetype); -} -//////////////////////////////////////////////////////////////////////////////// -/** - * Constructor from memory buffer, see Decode() - * \param buffer: memory buffer - * \param size: size of buffer - * \param imagetype: file format, see ENUM_CXIMAGE_FORMATS - */ -CxImage::CxImage(BYTE * buffer, DWORD size, DWORD imagetype) -{ - Startup(imagetype); - CxMemFile stream(buffer,size); - Decode(&stream,imagetype); -} -//////////////////////////////////////////////////////////////////////////////// -/** - * Loads an image from memory buffer - * \param buffer: memory buffer - * \param size: size of buffer - * \param imagetype: file format, see ENUM_CXIMAGE_FORMATS - * \return true if everything is ok - */ -bool CxImage::Decode(BYTE * buffer, DWORD size, DWORD imagetype) -{ - CxMemFile file(buffer,size); - return Decode(&file,imagetype); -} -//////////////////////////////////////////////////////////////////////////////// -/** - * Loads an image from file handle. - * \param hFile: file handle, with read access. - * \param imagetype: file format, see ENUM_CXIMAGE_FORMATS - * \return true if everything is ok - */ -bool CxImage::Decode(FILE *hFile, DWORD imagetype) -{ - CxIOFile file(hFile); - return Decode(&file,imagetype); -} -//////////////////////////////////////////////////////////////////////////////// -/** - * Loads an image from CxFile object - * \param hFile: file handle (CxMemFile or CxIOFile), with read access. - * \param imagetype: file format, see ENUM_CXIMAGE_FORMATS - * \return true if everything is ok - * \sa ENUM_CXIMAGE_FORMATS - */ -bool CxImage::Decode(CxFile *hFile, DWORD imagetype) -{ - if (hFile == NULL){ - strcpy(info.szLastError,CXIMAGE_ERR_NOFILE); - return false; - } - - if (imagetype==CXIMAGE_FORMAT_UNKNOWN){ - DWORD pos = hFile->Tell(); -#if CXIMAGE_SUPPORT_BMP - { CxImageBMP newima; newima.CopyInfo(*this); if (newima.Decode(hFile)) { Transfer(newima); return true; } else hFile->Seek(pos,SEEK_SET); } -#endif -#if CXIMAGE_SUPPORT_JPG - { CxImageJPG newima; newima.CopyInfo(*this); if (newima.Decode(hFile)) { Transfer(newima); return true; } else hFile->Seek(pos,SEEK_SET); } -#endif -#if CXIMAGE_SUPPORT_ICO - { CxImageICO newima; newima.CopyInfo(*this); if (newima.Decode(hFile)) { Transfer(newima); return true; } else hFile->Seek(pos,SEEK_SET); } -#endif -#if CXIMAGE_SUPPORT_GIF - { CxImageGIF newima; newima.CopyInfo(*this); if (newima.Decode(hFile)) { Transfer(newima); return true; } else hFile->Seek(pos,SEEK_SET); } -#endif -#if CXIMAGE_SUPPORT_PNG - { CxImagePNG newima; newima.CopyInfo(*this); if (newima.Decode(hFile)) { Transfer(newima); return true; } else hFile->Seek(pos,SEEK_SET); } -#endif -#if CXIMAGE_SUPPORT_TIF - { CxImageTIF newima; newima.CopyInfo(*this); if (newima.Decode(hFile)) { Transfer(newima); return true; } else hFile->Seek(pos,SEEK_SET); } -#endif -#if CXIMAGE_SUPPORT_MNG - { CxImageMNG newima; newima.CopyInfo(*this); if (newima.Decode(hFile)) { Transfer(newima); return true; } else hFile->Seek(pos,SEEK_SET); } -#endif -#if CXIMAGE_SUPPORT_TGA - { CxImageTGA newima; newima.CopyInfo(*this); if (newima.Decode(hFile)) { Transfer(newima); return true; } else hFile->Seek(pos,SEEK_SET); } -#endif -#if CXIMAGE_SUPPORT_PCX - { CxImagePCX newima; newima.CopyInfo(*this); if (newima.Decode(hFile)) { Transfer(newima); return true; } else hFile->Seek(pos,SEEK_SET); } -#endif -#if CXIMAGE_SUPPORT_WBMP - { CxImageWBMP newima; newima.CopyInfo(*this); if (newima.Decode(hFile)) { Transfer(newima); return true; } else hFile->Seek(pos,SEEK_SET); } -#endif -#if CXIMAGE_SUPPORT_WMF && CXIMAGE_SUPPORT_WINDOWS - { CxImageWMF newima; newima.CopyInfo(*this); if (newima.Decode(hFile)) { Transfer(newima); return true; } else hFile->Seek(pos,SEEK_SET); } -#endif -#if CXIMAGE_SUPPORT_JBG - { CxImageJBG newima; newima.CopyInfo(*this); if (newima.Decode(hFile)) { Transfer(newima); return true; } else hFile->Seek(pos,SEEK_SET); } -#endif -#if CXIMAGE_SUPPORT_JASPER - { CxImageJAS newima; newima.CopyInfo(*this); if (newima.Decode(hFile)) { Transfer(newima); return true; } else hFile->Seek(pos,SEEK_SET); } -#endif -#if CXIMAGE_SUPPORT_SKA - { CxImageSKA newima; newima.CopyInfo(*this); if (newima.Decode(hFile)) { Transfer(newima); return true; } else hFile->Seek(pos,SEEK_SET); } -#endif -#if CXIMAGE_SUPPORT_RAW - { CxImageRAW newima; newima.CopyInfo(*this); if (newima.Decode(hFile)) { Transfer(newima); return true; } else hFile->Seek(pos,SEEK_SET); } -#endif - } - -#if CXIMAGE_SUPPORT_BMP - if (imagetype==CXIMAGE_FORMAT_BMP){ - CxImageBMP newima; - newima.CopyInfo(*this); - if (newima.Decode(hFile)){ - Transfer(newima); - return true; - } else { - strcpy(info.szLastError,newima.GetLastError()); - return false; - } - } -#endif -#if CXIMAGE_SUPPORT_JPG - if (imagetype==CXIMAGE_FORMAT_JPG){ - CxImageJPG newima; - newima.CopyInfo(*this); // - if (newima.Decode(hFile)){ - Transfer(newima); - return true; - } else { - strcpy(info.szLastError,newima.GetLastError()); - return false; - } - } -#endif -#if CXIMAGE_SUPPORT_ICO - if (imagetype==CXIMAGE_FORMAT_ICO){ - CxImageICO newima; - newima.CopyInfo(*this); - if (newima.Decode(hFile)){ - Transfer(newima); - return true; - } else { - info.nNumFrames = newima.info.nNumFrames; - strcpy(info.szLastError,newima.GetLastError()); - return false; - } - } -#endif -#if CXIMAGE_SUPPORT_GIF - if (imagetype==CXIMAGE_FORMAT_GIF){ - CxImageGIF newima; - newima.CopyInfo(*this); - if (newima.Decode(hFile)){ - Transfer(newima); - return true; - } else { - info.nNumFrames = newima.info.nNumFrames; - strcpy(info.szLastError,newima.GetLastError()); - return false; - } - } -#endif -#if CXIMAGE_SUPPORT_PNG - if (imagetype==CXIMAGE_FORMAT_PNG){ - CxImagePNG newima; - newima.CopyInfo(*this); - if (newima.Decode(hFile)){ - Transfer(newima); - return true; - } else { - strcpy(info.szLastError,newima.GetLastError()); - return false; - } - } -#endif -#if CXIMAGE_SUPPORT_TIF - if (imagetype==CXIMAGE_FORMAT_TIF){ - CxImageTIF newima; - newima.CopyInfo(*this); - if (newima.Decode(hFile)){ - Transfer(newima); - return true; - } else { - info.nNumFrames = newima.info.nNumFrames; - strcpy(info.szLastError,newima.GetLastError()); - return false; - } - } -#endif -#if CXIMAGE_SUPPORT_MNG - if (imagetype==CXIMAGE_FORMAT_MNG){ - CxImageMNG newima; - newima.CopyInfo(*this); - if (newima.Decode(hFile)){ - Transfer(newima); - return true; - } else { - info.nNumFrames = newima.info.nNumFrames; - strcpy(info.szLastError,newima.GetLastError()); - return false; - } - } -#endif -#if CXIMAGE_SUPPORT_TGA - if (imagetype==CXIMAGE_FORMAT_TGA){ - CxImageTGA newima; - newima.CopyInfo(*this); - if (newima.Decode(hFile)){ - Transfer(newima); - return true; - } else { - strcpy(info.szLastError,newima.GetLastError()); - return false; - } - } -#endif -#if CXIMAGE_SUPPORT_PCX - if (imagetype==CXIMAGE_FORMAT_PCX){ - CxImagePCX newima; - newima.CopyInfo(*this); - if (newima.Decode(hFile)){ - Transfer(newima); - return true; - } else { - strcpy(info.szLastError,newima.GetLastError()); - return false; - } - } -#endif -#if CXIMAGE_SUPPORT_WBMP - if (imagetype==CXIMAGE_FORMAT_WBMP){ - CxImageWBMP newima; - newima.CopyInfo(*this); - if (newima.Decode(hFile)){ - Transfer(newima); - return true; - } else { - strcpy(info.szLastError,newima.GetLastError()); - return false; - } - } -#endif -#if CXIMAGE_SUPPORT_WMF && CXIMAGE_SUPPORT_WINDOWS // vho - WMF support - if (imagetype == CXIMAGE_FORMAT_WMF){ - CxImageWMF newima; - newima.CopyInfo(*this); - if (newima.Decode(hFile)){ - Transfer(newima); - return true; - } else { - strcpy(info.szLastError,newima.GetLastError()); - return false; - } - } -#endif -#if CXIMAGE_SUPPORT_JBG - if (imagetype==CXIMAGE_FORMAT_JBG){ - CxImageJBG newima; - newima.CopyInfo(*this); - if (newima.Decode(hFile)){ - Transfer(newima); - return true; - } else { - strcpy(info.szLastError,newima.GetLastError()); - return false; - } - } -#endif -#if CXIMAGE_SUPPORT_JASPER - if ( - #if CXIMAGE_SUPPORT_JP2 - imagetype==CXIMAGE_FORMAT_JP2 || - #endif - #if CXIMAGE_SUPPORT_JPC - imagetype==CXIMAGE_FORMAT_JPC || - #endif - #if CXIMAGE_SUPPORT_PGX - imagetype==CXIMAGE_FORMAT_PGX || - #endif - #if CXIMAGE_SUPPORT_PNM - imagetype==CXIMAGE_FORMAT_PNM || - #endif - #if CXIMAGE_SUPPORT_RAS - imagetype==CXIMAGE_FORMAT_RAS || - #endif - false ){ - CxImageJAS newima; - newima.CopyInfo(*this); - if (newima.Decode(hFile,imagetype)){ - Transfer(newima); - return true; - } else { - strcpy(info.szLastError,newima.GetLastError()); - return false; - } - } -#endif -#if CXIMAGE_SUPPORT_SKA - if (imagetype==CXIMAGE_FORMAT_SKA){ - CxImageSKA newima; - newima.CopyInfo(*this); - if (newima.Decode(hFile)){ - Transfer(newima); - return true; - } else { - strcpy(info.szLastError,newima.GetLastError()); - return false; - } - } -#endif - -#if CXIMAGE_SUPPORT_RAW - if (imagetype==CXIMAGE_FORMAT_RAW){ - CxImageRAW newima; - newima.CopyInfo(*this); - if (newima.Decode(hFile)){ - Transfer(newima); - return true; - } else { - strcpy(info.szLastError,newima.GetLastError()); - return false; - } - } -#endif - - strcpy(info.szLastError,"Decode: Unknown or wrong format"); - return false; -} -//////////////////////////////////////////////////////////////////////////////// -/** - * Loads an image from CxFile object - * \param hFile: file handle (CxMemFile or CxIOFile), with read access. - * \param imagetype: file format, default = 0 (CXIMAGE_FORMAT_UNKNOWN) - * \return : if imagetype is not 0, the function returns true when imagetype - * matches the file image format. If imagetype is 0, the function returns true - * when the file image format is recognized as a supported format. - * If the returned value is true, use GetHeight(), GetWidth() or GetType() - * to retrieve the basic image information. - * \sa ENUM_CXIMAGE_FORMATS - */ -bool CxImage::CheckFormat(CxFile * hFile, DWORD imagetype) -{ - SetType(CXIMAGE_FORMAT_UNKNOWN); - SetEscape(-1); - - if (!Decode(hFile,imagetype)) - return false; - - if (GetType() == CXIMAGE_FORMAT_UNKNOWN || GetType() != imagetype) - return false; - - return true; -} -//////////////////////////////////////////////////////////////////////////////// -bool CxImage::CheckFormat(BYTE * buffer, DWORD size, DWORD imagetype) -{ - if (buffer==NULL || size==NULL){ - strcpy(info.szLastError,"invalid or empty buffer"); - return false; - } - CxMemFile file(buffer,size); - return CheckFormat(&file,imagetype); -} -//////////////////////////////////////////////////////////////////////////////// -#endif //CXIMAGE_SUPPORT_DECODE -//////////////////////////////////////////////////////////////////////////////// diff --git a/src/3rdParty/CxImage/CxImage/ximaexif.cpp b/src/3rdParty/CxImage/CxImage/ximaexif.cpp deleted file mode 100644 index 8d9404b8ad..0000000000 --- a/src/3rdParty/CxImage/CxImage/ximaexif.cpp +++ /dev/null @@ -1,878 +0,0 @@ -/* - * File: ximaexif.cpp - * Purpose: EXIF reader - * 18/Aug/2002 Davide Pizzolato - www.xdp.it - * CxImage version 6.0.0 02/Feb/2008 - * based on jhead-1.8 by Matthias Wandel - */ - -#include "ximajpg.h" - -#if CXIMAGEJPG_SUPPORT_EXIF - -//////////////////////////////////////////////////////////////////////////////// -CxImageJPG::CxExifInfo::CxExifInfo(EXIFINFO* info) -{ - if (info) { - m_exifinfo = info; - freeinfo = false; - } else { - m_exifinfo = new EXIFINFO; - memset(m_exifinfo,0,sizeof(EXIFINFO)); - freeinfo = true; - } - - m_szLastError[0]='\0'; - ExifImageWidth = MotorolaOrder = 0; - SectionsRead=0; - memset(&Sections, 0, MAX_SECTIONS * sizeof(Section_t)); -} -//////////////////////////////////////////////////////////////////////////////// -CxImageJPG::CxExifInfo::~CxExifInfo() -{ - for(int i=0;iGetC(); - - if (a != 0xff || hFile->GetC() != M_SOI){ - return FALSE; - } - - for(;;){ - int itemlen; - int marker = 0; - int ll,lh, got; - BYTE * Data; - - if (SectionsRead >= MAX_SECTIONS){ - strcpy(m_szLastError,"Too many sections in jpg file"); - return false; - } - - for (a=0;a<7;a++){ - marker = hFile->GetC(); - if (marker != 0xff) break; - - if (a >= 6){ - printf("too many padding bytes\n"); - return false; - } - } - - if (marker == 0xff){ - // 0xff is legal padding, but if we get that many, something's wrong. - strcpy(m_szLastError,"too many padding bytes!"); - return false; - } - - Sections[SectionsRead].Type = marker; - - // Read the length of the section. - lh = hFile->GetC(); - ll = hFile->GetC(); - - itemlen = (lh << 8) | ll; - - if (itemlen < 2){ - strcpy(m_szLastError,"invalid marker"); - return false; - } - - Sections[SectionsRead].Size = itemlen; - - Data = (BYTE *)malloc(itemlen); - if (Data == NULL){ - strcpy(m_szLastError,"Could not allocate memory"); - return false; - } - Sections[SectionsRead].Data = Data; - - // Store first two pre-read bytes. - Data[0] = (BYTE)lh; - Data[1] = (BYTE)ll; - - got = hFile->Read(Data+2, 1, itemlen-2); // Read the whole section. - if (got != itemlen-2){ - strcpy(m_szLastError,"Premature end of file?"); - return false; - } - SectionsRead += 1; - - switch(marker){ - - case M_SOS: // stop before hitting compressed data - // If reading entire image is requested, read the rest of the data. - if (nReadMode & EXIF_READ_IMAGE){ - int cp, ep, size; - // Determine how much file is left. - cp = hFile->Tell(); - hFile->Seek(0, SEEK_END); - ep = hFile->Tell(); - hFile->Seek(cp, SEEK_SET); - - size = ep-cp; - Data = (BYTE *)malloc(size); - if (Data == NULL){ - strcpy(m_szLastError,"could not allocate data for entire image"); - return false; - } - - got = hFile->Read(Data, 1, size); - if (got != size){ - strcpy(m_szLastError,"could not read the rest of the image"); - return false; - } - - Sections[SectionsRead].Data = Data; - Sections[SectionsRead].Size = size; - Sections[SectionsRead].Type = PSEUDO_IMAGE_MARKER; - SectionsRead ++; - } - return true; - - case M_EOI: // in case it's a tables-only JPEG stream - printf("No image in jpeg!\n"); - return FALSE; - - case M_COM: // Comment section - if (HaveCom || ((nReadMode & EXIF_READ_EXIF) == 0)){ - // Discard this section. - free(Sections[--SectionsRead].Data); - Sections[SectionsRead].Data=0; - }else{ - process_COM(Data, itemlen); - HaveCom = TRUE; - } - break; - - case M_JFIF: - // Regular jpegs always have this tag, exif images have the exif - // marker instead, althogh ACDsee will write images with both markers. - // this program will re-create this marker on absence of exif marker. - // hence no need to keep the copy from the file. - free(Sections[--SectionsRead].Data); - Sections[SectionsRead].Data=0; - break; - - case M_EXIF: - // Seen files from some 'U-lead' software with Vivitar scanner - // that uses marker 31 for non exif stuff. Thus make sure - // it says 'Exif' in the section before treating it as exif. - if ((nReadMode & EXIF_READ_EXIF) && memcmp(Data+2, "Exif", 4) == 0){ - m_exifinfo->IsExif = process_EXIF((BYTE *)Data+2, itemlen); - }else{ - // Discard this section. - free(Sections[--SectionsRead].Data); - Sections[SectionsRead].Data=0; - } - break; - - case M_SOF0: - case M_SOF1: - case M_SOF2: - case M_SOF3: - case M_SOF5: - case M_SOF6: - case M_SOF7: - case M_SOF9: - case M_SOF10: - case M_SOF11: - case M_SOF13: - case M_SOF14: - case M_SOF15: - process_SOFn(Data, marker); - break; - default: - // Skip any other sections. - //if (ShowTags) printf("Jpeg section marker 0x%02x size %d\n",marker, itemlen); - break; - } - } - return true; -} -//////////////////////////////////////////////////////////////////////////////// -/*-------------------------------------------------------------------------- - Process a EXIF marker - Describes all the drivel that most digital cameras include... ---------------------------------------------------------------------------*/ -bool CxImageJPG::CxExifInfo::process_EXIF(unsigned char * CharBuf, unsigned int length) -{ - m_exifinfo->FlashUsed = 0; - /* If it's from a digicam, and it used flash, it says so. */ - m_exifinfo->Comments[0] = '\0'; /* Initial value - null string */ - - ExifImageWidth = 0; - - { /* Check the EXIF header component */ - static const unsigned char ExifHeader[] = "Exif\0\0"; - if (memcmp(CharBuf+0, ExifHeader,6)){ - strcpy(m_szLastError,"Incorrect Exif header"); - return false; - } - } - - if (memcmp(CharBuf+6,"II",2) == 0){ - MotorolaOrder = 0; - }else{ - if (memcmp(CharBuf+6,"MM",2) == 0){ - MotorolaOrder = 1; - }else{ - strcpy(m_szLastError,"Invalid Exif alignment marker."); - return false; - } - } - - /* Check the next two values for correctness. */ - if (Get16u(CharBuf+8) != 0x2a){ - strcpy(m_szLastError,"Invalid Exif start (1)"); - return false; - } - - int FirstOffset = Get32u(CharBuf+10); - /* - if (FirstOffset < 8 || FirstOffset > 16){ - // I used to ensure this was set to 8 (website I used indicated its 8) - // but PENTAX Optio 230 has it set differently, and uses it as offset. (Sept 11 2002) - strcpy(m_szLastError,"Suspicious offset of first IFD value"); - return false; - }*/ - - unsigned char * LastExifRefd = CharBuf; - - /* First directory starts 16 bytes in. Offsets start at 8 bytes in. */ - if (!ProcessExifDir(CharBuf+14, CharBuf+6, length-6, m_exifinfo, &LastExifRefd)) - return false; - - /* give a chance for a second directory */ - if (FirstOffset > 8) { - if (!ProcessExifDir(CharBuf+14+FirstOffset-8, CharBuf+6, length-6, m_exifinfo, &LastExifRefd)) - return false; - } - - /* This is how far the interesting (non thumbnail) part of the exif went. */ - // int ExifSettingsLength = LastExifRefd - CharBuf; - - /* Compute the CCD width, in milimeters. */ - if (m_exifinfo->FocalplaneXRes != 0){ - m_exifinfo->CCDWidth = (float)(ExifImageWidth * m_exifinfo->FocalplaneUnits / m_exifinfo->FocalplaneXRes); - } - - return true; -} -//-------------------------------------------------------------------------- -// Get 16 bits motorola order (always) for jpeg header stuff. -//-------------------------------------------------------------------------- -int CxImageJPG::CxExifInfo::Get16m(void * Short) -{ - return (((unsigned char *)Short)[0] << 8) | ((unsigned char *)Short)[1]; -} -//////////////////////////////////////////////////////////////////////////////// -/*-------------------------------------------------------------------------- - Convert a 16 bit unsigned value from file's native byte order ---------------------------------------------------------------------------*/ -int CxImageJPG::CxExifInfo::Get16u(void * Short) -{ - if (MotorolaOrder){ - return (((unsigned char *)Short)[0] << 8) | ((unsigned char *)Short)[1]; - }else{ - return (((unsigned char *)Short)[1] << 8) | ((unsigned char *)Short)[0]; - } -} -//////////////////////////////////////////////////////////////////////////////// -/*-------------------------------------------------------------------------- - Convert a 32 bit signed value from file's native byte order ---------------------------------------------------------------------------*/ -long CxImageJPG::CxExifInfo::Get32s(void * Long) -{ - if (MotorolaOrder){ - return ((( char *)Long)[0] << 24) | (((unsigned char *)Long)[1] << 16) - | (((unsigned char *)Long)[2] << 8 ) | (((unsigned char *)Long)[3] << 0 ); - }else{ - return ((( char *)Long)[3] << 24) | (((unsigned char *)Long)[2] << 16) - | (((unsigned char *)Long)[1] << 8 ) | (((unsigned char *)Long)[0] << 0 ); - } -} -//////////////////////////////////////////////////////////////////////////////// -/*-------------------------------------------------------------------------- - Convert a 32 bit unsigned value from file's native byte order ---------------------------------------------------------------------------*/ -unsigned long CxImageJPG::CxExifInfo::Get32u(void * Long) -{ - return (unsigned long)Get32s(Long) & 0xffffffff; -} -//////////////////////////////////////////////////////////////////////////////// - -/* Describes format descriptor */ -static const int BytesPerFormat[] = {0,1,1,2,4,8,1,1,2,4,8,4,8}; -#define NUM_FORMATS 12 - -#define FMT_BYTE 1 -#define FMT_STRING 2 -#define FMT_USHORT 3 -#define FMT_ULONG 4 -#define FMT_URATIONAL 5 -#define FMT_SBYTE 6 -#define FMT_UNDEFINED 7 -#define FMT_SSHORT 8 -#define FMT_SLONG 9 -#define FMT_SRATIONAL 10 -#define FMT_SINGLE 11 -#define FMT_DOUBLE 12 - -/* Describes tag values */ - -#define TAG_EXIF_VERSION 0x9000 -#define TAG_EXIF_OFFSET 0x8769 -#define TAG_INTEROP_OFFSET 0xa005 - -#define TAG_MAKE 0x010F -#define TAG_MODEL 0x0110 - -#define TAG_ORIENTATION 0x0112 -#define TAG_XRESOLUTION 0x011A -#define TAG_YRESOLUTION 0x011B -#define TAG_RESOLUTIONUNIT 0x0128 - -#define TAG_EXPOSURETIME 0x829A -#define TAG_FNUMBER 0x829D - -#define TAG_SHUTTERSPEED 0x9201 -#define TAG_APERTURE 0x9202 -#define TAG_BRIGHTNESS 0x9203 -#define TAG_MAXAPERTURE 0x9205 -#define TAG_FOCALLENGTH 0x920A - -#define TAG_DATETIME_ORIGINAL 0x9003 -#define TAG_USERCOMMENT 0x9286 - -#define TAG_SUBJECT_DISTANCE 0x9206 -#define TAG_FLASH 0x9209 - -#define TAG_FOCALPLANEXRES 0xa20E -#define TAG_FOCALPLANEYRES 0xa20F -#define TAG_FOCALPLANEUNITS 0xa210 -#define TAG_EXIF_IMAGEWIDTH 0xA002 -#define TAG_EXIF_IMAGELENGTH 0xA003 - -/* the following is added 05-jan-2001 vcs */ -#define TAG_EXPOSURE_BIAS 0x9204 -#define TAG_WHITEBALANCE 0x9208 -#define TAG_METERING_MODE 0x9207 -#define TAG_EXPOSURE_PROGRAM 0x8822 -#define TAG_ISO_EQUIVALENT 0x8827 -#define TAG_COMPRESSION_LEVEL 0x9102 - -#define TAG_THUMBNAIL_OFFSET 0x0201 -#define TAG_THUMBNAIL_LENGTH 0x0202 - - -/*-------------------------------------------------------------------------- - Process one of the nested EXIF directories. ---------------------------------------------------------------------------*/ -bool CxImageJPG::CxExifInfo::ProcessExifDir(unsigned char * DirStart, unsigned char * OffsetBase, unsigned ExifLength, - EXIFINFO * const m_exifinfo, unsigned char ** const LastExifRefdP, int NestingLevel) -{ - int de; - int a; - int NumDirEntries; - unsigned ThumbnailOffset = 0; - unsigned ThumbnailSize = 0; - - if (NestingLevel > 4){ - strcpy(m_szLastError,"Maximum directory nesting exceeded (corrupt exif header)"); - return false; - } - - NumDirEntries = Get16u(DirStart); - - if ((DirStart+2+NumDirEntries*12) > (OffsetBase+ExifLength)){ - strcpy(m_szLastError,"Illegally sized directory"); - return false; - } - - for (de=0;de= NUM_FORMATS) { - /* (-1) catches illegal zero case as unsigned underflows to positive large */ - strcpy(m_szLastError,"Illegal format code in EXIF dir"); - return false; - } - - ByteCount = Components * BytesPerFormat[Format]; - - if (ByteCount > 4){ - unsigned OffsetVal; - OffsetVal = Get32u(DirEntry+8); - /* If its bigger than 4 bytes, the dir entry contains an offset.*/ - if (OffsetVal+ByteCount > ExifLength){ - /* Bogus pointer offset and / or bytecount value */ - strcpy(m_szLastError,"Illegal pointer offset value in EXIF."); - return false; - } - ValuePtr = OffsetBase+OffsetVal; - }else{ - /* 4 bytes or less and value is in the dir entry itself */ - ValuePtr = DirEntry+8; - } - - if (*LastExifRefdP < ValuePtr+ByteCount){ - /* Keep track of last byte in the exif header that was - actually referenced. That way, we know where the - discardable thumbnail data begins. - */ - *LastExifRefdP = ValuePtr+ByteCount; - } - - /* Extract useful components of tag */ - switch(Tag){ - - case TAG_MAKE: - strncpy(m_exifinfo->CameraMake, (char*)ValuePtr, 31); - break; - - case TAG_MODEL: - strncpy(m_exifinfo->CameraModel, (char*)ValuePtr, 39); - break; - - case TAG_EXIF_VERSION: - strncpy(m_exifinfo->Version,(char*)ValuePtr, 4); - break; - - case TAG_DATETIME_ORIGINAL: - strncpy(m_exifinfo->DateTime, (char*)ValuePtr, 19); - break; - - case TAG_USERCOMMENT: - // Olympus has this padded with trailing spaces. Remove these first. - for (a=ByteCount;;){ - a--; - if (((char*)ValuePtr)[a] == ' '){ - ((char*)ValuePtr)[a] = '\0'; - }else{ - break; - } - if (a == 0) break; - } - - /* Copy the comment */ - if (memcmp(ValuePtr, "ASCII",5) == 0){ - for (a=5;a<10;a++){ - char c; - c = ((char*)ValuePtr)[a]; - if (c != '\0' && c != ' '){ - strncpy(m_exifinfo->Comments, (char*)ValuePtr+a, 199); - break; - } - } - - }else{ - strncpy(m_exifinfo->Comments, (char*)ValuePtr, 199); - } - break; - - case TAG_FNUMBER: - /* Simplest way of expressing aperture, so I trust it the most. - (overwrite previously computd value if there is one) - */ - m_exifinfo->ApertureFNumber = (float)ConvertAnyFormat(ValuePtr, Format); - break; - - case TAG_APERTURE: - case TAG_MAXAPERTURE: - /* More relevant info always comes earlier, so only - use this field if we don't have appropriate aperture - information yet. - */ - if (m_exifinfo->ApertureFNumber == 0){ - m_exifinfo->ApertureFNumber = (float)exp(ConvertAnyFormat(ValuePtr, Format)*log(2.0f)*0.5); - } - break; - - case TAG_BRIGHTNESS: - m_exifinfo->Brightness = (float)ConvertAnyFormat(ValuePtr, Format); - break; - - case TAG_FOCALLENGTH: - /* Nice digital cameras actually save the focal length - as a function of how farthey are zoomed in. - */ - - m_exifinfo->FocalLength = (float)ConvertAnyFormat(ValuePtr, Format); - break; - - case TAG_SUBJECT_DISTANCE: - /* Inidcates the distacne the autofocus camera is focused to. - Tends to be less accurate as distance increases. - */ - m_exifinfo->Distance = (float)ConvertAnyFormat(ValuePtr, Format); - break; - - case TAG_EXPOSURETIME: - /* Simplest way of expressing exposure time, so I - trust it most. (overwrite previously computd value - if there is one) - */ - m_exifinfo->ExposureTime = - (float)ConvertAnyFormat(ValuePtr, Format); - break; - - case TAG_SHUTTERSPEED: - /* More complicated way of expressing exposure time, - so only use this value if we don't already have it - from somewhere else. - */ - if (m_exifinfo->ExposureTime == 0){ - m_exifinfo->ExposureTime = (float) - (1/exp(ConvertAnyFormat(ValuePtr, Format)*log(2.0f))); - } - break; - - case TAG_FLASH: - if ((int)ConvertAnyFormat(ValuePtr, Format) & 7){ - m_exifinfo->FlashUsed = 1; - }else{ - m_exifinfo->FlashUsed = 0; - } - break; - - case TAG_ORIENTATION: - m_exifinfo->Orientation = (int)ConvertAnyFormat(ValuePtr, Format); - if (m_exifinfo->Orientation < 1 || m_exifinfo->Orientation > 8){ - strcpy(m_szLastError,"Undefined rotation value"); - m_exifinfo->Orientation = 0; - } - break; - - case TAG_EXIF_IMAGELENGTH: - case TAG_EXIF_IMAGEWIDTH: - /* Use largest of height and width to deal with images - that have been rotated to portrait format. - */ - a = (int)ConvertAnyFormat(ValuePtr, Format); - if (ExifImageWidth < a) ExifImageWidth = a; - break; - - case TAG_FOCALPLANEXRES: - m_exifinfo->FocalplaneXRes = (float)ConvertAnyFormat(ValuePtr, Format); - break; - - case TAG_FOCALPLANEYRES: - m_exifinfo->FocalplaneYRes = (float)ConvertAnyFormat(ValuePtr, Format); - break; - - case TAG_RESOLUTIONUNIT: - switch((int)ConvertAnyFormat(ValuePtr, Format)){ - case 1: m_exifinfo->ResolutionUnit = 1.0f; break; /* 1 inch */ - case 2: m_exifinfo->ResolutionUnit = 1.0f; break; - case 3: m_exifinfo->ResolutionUnit = 0.3937007874f; break; /* 1 centimeter*/ - case 4: m_exifinfo->ResolutionUnit = 0.03937007874f; break; /* 1 millimeter*/ - case 5: m_exifinfo->ResolutionUnit = 0.00003937007874f; /* 1 micrometer*/ - } - break; - - case TAG_FOCALPLANEUNITS: - switch((int)ConvertAnyFormat(ValuePtr, Format)){ - case 1: m_exifinfo->FocalplaneUnits = 1.0f; break; /* 1 inch */ - case 2: m_exifinfo->FocalplaneUnits = 1.0f; break; - case 3: m_exifinfo->FocalplaneUnits = 0.3937007874f; break; /* 1 centimeter*/ - case 4: m_exifinfo->FocalplaneUnits = 0.03937007874f; break; /* 1 millimeter*/ - case 5: m_exifinfo->FocalplaneUnits = 0.00003937007874f; /* 1 micrometer*/ - } - break; - - // Remaining cases contributed by: Volker C. Schoech - - case TAG_EXPOSURE_BIAS: - m_exifinfo->ExposureBias = (float) ConvertAnyFormat(ValuePtr, Format); - break; - - case TAG_WHITEBALANCE: - m_exifinfo->Whitebalance = (int)ConvertAnyFormat(ValuePtr, Format); - break; - - case TAG_METERING_MODE: - m_exifinfo->MeteringMode = (int)ConvertAnyFormat(ValuePtr, Format); - break; - - case TAG_EXPOSURE_PROGRAM: - m_exifinfo->ExposureProgram = (int)ConvertAnyFormat(ValuePtr, Format); - break; - - case TAG_ISO_EQUIVALENT: - m_exifinfo->ISOequivalent = (int)ConvertAnyFormat(ValuePtr, Format); - if ( m_exifinfo->ISOequivalent < 50 ) m_exifinfo->ISOequivalent *= 200; - break; - - case TAG_COMPRESSION_LEVEL: - m_exifinfo->CompressionLevel = (int)ConvertAnyFormat(ValuePtr, Format); - break; - - case TAG_XRESOLUTION: - m_exifinfo->Xresolution = (float)ConvertAnyFormat(ValuePtr, Format); - break; - case TAG_YRESOLUTION: - m_exifinfo->Yresolution = (float)ConvertAnyFormat(ValuePtr, Format); - break; - - case TAG_THUMBNAIL_OFFSET: - ThumbnailOffset = (unsigned)ConvertAnyFormat(ValuePtr, Format); - break; - - case TAG_THUMBNAIL_LENGTH: - ThumbnailSize = (unsigned)ConvertAnyFormat(ValuePtr, Format); - break; - - } - - if (Tag == TAG_EXIF_OFFSET || Tag == TAG_INTEROP_OFFSET){ - unsigned char * SubdirStart; - unsigned Offset = Get32u(ValuePtr); - if (Offset>8){ - SubdirStart = OffsetBase + Offset; - if (SubdirStart < OffsetBase || - SubdirStart > OffsetBase+ExifLength){ - strcpy(m_szLastError,"Illegal subdirectory link"); - return false; - } - ProcessExifDir(SubdirStart, OffsetBase, ExifLength, m_exifinfo, LastExifRefdP, NestingLevel+1); - } - continue; - } - } - - - { - /* In addition to linking to subdirectories via exif tags, - there's also a potential link to another directory at the end - of each directory. This has got to be the result of a - committee! - */ - unsigned char * SubdirStart; - unsigned Offset; - Offset = Get16u(DirStart+2+12*NumDirEntries); - if (Offset){ - SubdirStart = OffsetBase + Offset; - if (SubdirStart < OffsetBase - || SubdirStart > OffsetBase+ExifLength){ - strcpy(m_szLastError,"Illegal subdirectory link"); - return false; - } - ProcessExifDir(SubdirStart, OffsetBase, ExifLength, m_exifinfo, LastExifRefdP, NestingLevel+1); - } - } - - - if (ThumbnailSize && ThumbnailOffset){ - if (ThumbnailSize + ThumbnailOffset <= ExifLength){ - /* The thumbnail pointer appears to be valid. Store it. */ - m_exifinfo->ThumbnailPointer = OffsetBase + ThumbnailOffset; - m_exifinfo->ThumbnailSize = ThumbnailSize; - } - } - - return true; -} -//////////////////////////////////////////////////////////////////////////////// -/*-------------------------------------------------------------------------- - Evaluate number, be it int, rational, or float from directory. ---------------------------------------------------------------------------*/ -double CxImageJPG::CxExifInfo::ConvertAnyFormat(void * ValuePtr, int Format) -{ - double Value; - Value = 0; - - switch(Format){ - case FMT_SBYTE: Value = *(signed char *)ValuePtr; break; - case FMT_BYTE: Value = *(unsigned char *)ValuePtr; break; - - case FMT_USHORT: Value = Get16u(ValuePtr); break; - case FMT_ULONG: Value = Get32u(ValuePtr); break; - - case FMT_URATIONAL: - case FMT_SRATIONAL: - { - int Num,Den; - Num = Get32s(ValuePtr); - Den = Get32s(4+(char *)ValuePtr); - if (Den == 0){ - Value = 0; - }else{ - Value = (double)Num/Den; - } - break; - } - - case FMT_SSHORT: Value = (signed short)Get16u(ValuePtr); break; - case FMT_SLONG: Value = Get32s(ValuePtr); break; - - /* Not sure if this is correct (never seen float used in Exif format) - */ - case FMT_SINGLE: Value = (double)*(float *)ValuePtr; break; - case FMT_DOUBLE: Value = *(double *)ValuePtr; break; - } - return Value; -} -//////////////////////////////////////////////////////////////////////////////// -void CxImageJPG::CxExifInfo::process_COM (const BYTE * Data, int length) -{ - int ch; - char Comment[MAX_COMMENT+1]; - int nch; - int a; - - nch = 0; - - if (length > MAX_COMMENT) length = MAX_COMMENT; // Truncate if it won't fit in our structure. - - for (a=2;aComments,Comment); -} -//////////////////////////////////////////////////////////////////////////////// -void CxImageJPG::CxExifInfo::process_SOFn (const BYTE * Data, int marker) -{ - int data_precision, num_components; - - data_precision = Data[2]; - m_exifinfo->Height = Get16m((void*)(Data+3)); - m_exifinfo->Width = Get16m((void*)(Data+5)); - num_components = Data[7]; - - if (num_components == 3){ - m_exifinfo->IsColor = 1; - }else{ - m_exifinfo->IsColor = 0; - } - - m_exifinfo->Process = marker; - - //if (ShowTags) printf("JPEG image is %uw * %uh, %d color components, %d bits per sample\n", - // ImageInfo.Width, ImageInfo.Height, num_components, data_precision); -} -//////////////////////////////////////////////////////////////////////////////// -/** - * this will work only on a CxImageJPG object, if the image originally has valid EXIF data - \verbatim - CxImageJPG jpg; - CxIOFile in,out; - in.Open("D:\\exif_in.jpg","rb"); - out.Open("D:\\exif_out.jpg","w+b"); - jpg.Decode(&in); - if (jpg.IsValid()){ - jpg.RotateLeft(); - jpg.Encode(&out); - } - \endverbatim -*/ -bool CxImageJPG::CxExifInfo::EncodeExif(CxFile * hFile) -{ - int a; - - if (FindSection(M_SOS)==NULL){ - strcpy(m_szLastError,"Can't write exif : didn't read all"); - return false; - } - - // Initial static jpeg marker. - hFile->PutC(0xff); - hFile->PutC(0xd8); - - if (Sections[0].Type != M_EXIF && Sections[0].Type != M_JFIF){ - // The image must start with an exif or jfif marker. If we threw those away, create one. - static BYTE JfifHead[18] = { - 0xff, M_JFIF, - 0x00, 0x10, 'J' , 'F' , 'I' , 'F' , 0x00, 0x01, - 0x01, 0x01, 0x01, 0x2C, 0x01, 0x2C, 0x00, 0x00 - }; - hFile->Write(JfifHead, 18, 1); - } - - // Write all the misc sections - for (a=0;aPutC(0xff); - hFile->PutC((unsigned char)(Sections[a].Type)); - hFile->Write(Sections[a].Data, Sections[a].Size, 1); - } - - // Write the remaining image data. - hFile->Write(Sections[a].Data, Sections[a].Size, 1); - - return true; -} -//////////////////////////////////////////////////////////////////////////////// -void CxImageJPG::CxExifInfo::DiscardAllButExif() -{ - Section_t ExifKeeper; - Section_t CommentKeeper; - int a; - - memset(&ExifKeeper, 0, sizeof(ExifKeeper)); - memset(&CommentKeeper, 0, sizeof(ExifKeeper)); - - for (a=0;a Use it before Create() - */ -void CxImage::CopyInfo(const CxImage &src) -{ - if (pDib==NULL) memcpy(&info,&src.info,sizeof(CXIMAGEINFO)); -} -//////////////////////////////////////////////////////////////////////////////// -/** - * \sa Copy - */ -CxImage& CxImage::operator = (const CxImage& isrc) -{ - if (this != &isrc) Copy(isrc); - return *this; -} -//////////////////////////////////////////////////////////////////////////////// -/** - * Initializes or rebuilds the image. - * \param dwWidth: width - * \param dwHeight: height - * \param wBpp: bit per pixel, can be 1, 4, 8, 24 - * \param imagetype: (optional) set the image format, see ENUM_CXIMAGE_FORMATS - * \return pointer to the internal pDib object; NULL if an error occurs. - */ -void* CxImage::Create(DWORD dwWidth, DWORD dwHeight, DWORD wBpp, DWORD imagetype) -{ - // destroy the existing image (if any) - if (!Destroy()) - return NULL; - - // prevent further actions if width or height are not vaild - if ((dwWidth == 0) || (dwHeight == 0)){ - strcpy(info.szLastError,"CxImage::Create : width and height must be greater than zero"); - return NULL; - } - - // Make sure bits per pixel is valid - if (wBpp <= 1) wBpp = 1; - else if (wBpp <= 4) wBpp = 4; - else if (wBpp <= 8) wBpp = 8; - else wBpp = 24; - - // limit memory requirements (and also a check for bad parameters) - if (((dwWidth*dwHeight*wBpp)>>3) > CXIMAGE_MAX_MEMORY || - ((dwWidth*dwHeight*wBpp)/wBpp) != (dwWidth*dwHeight)) - { - strcpy(info.szLastError,"CXIMAGE_MAX_MEMORY exceeded"); - return NULL; - } - - // set the correct bpp value - switch (wBpp){ - case 1: - head.biClrUsed = 2; break; - case 4: - head.biClrUsed = 16; break; - case 8: - head.biClrUsed = 256; break; - default: - head.biClrUsed = 0; - } - - //set the common image informations - info.dwEffWidth = ((((wBpp * dwWidth) + 31) / 32) * 4); - info.dwType = imagetype; - - // initialize BITMAPINFOHEADER - head.biSize = sizeof(BITMAPINFOHEADER); // - head.biWidth = dwWidth; // fill in width from parameter - head.biHeight = dwHeight; // fill in height from parameter - head.biPlanes = 1; // must be 1 - head.biBitCount = (WORD)wBpp; // from parameter - head.biCompression = BI_RGB; - head.biSizeImage = info.dwEffWidth * dwHeight; -// head.biXPelsPerMeter = 0; See SetXDPI -// head.biYPelsPerMeter = 0; See SetYDPI -// head.biClrImportant = 0; See SetClrImportant - - pDib = malloc(GetSize()); // alloc memory block to store our bitmap - if (!pDib){ - strcpy(info.szLastError,"CxImage::Create can't allocate memory"); - return NULL; - } - - //clear the palette - RGBQUAD* pal=GetPalette(); - if (pal) memset(pal,0,GetPaletteSize()); - //Destroy the existing selection -#if CXIMAGE_SUPPORT_SELECTION - if (pSelection) SelectionDelete(); -#endif //CXIMAGE_SUPPORT_SELECTION - //Destroy the existing alpha channel -#if CXIMAGE_SUPPORT_ALPHA - if (pAlpha) AlphaDelete(); -#endif //CXIMAGE_SUPPORT_ALPHA - - // use our bitmap info structure to fill in first part of - // our DIB with the BITMAPINFOHEADER - BITMAPINFOHEADER* lpbi; - lpbi = (BITMAPINFOHEADER*)(pDib); - *lpbi = head; - - info.pImage=GetBits(); - - return pDib; //return handle to the DIB -} -//////////////////////////////////////////////////////////////////////////////// -/** - * \return pointer to the image pixels. USE CAREFULLY - */ -BYTE* CxImage::GetBits(DWORD row) -{ - if (pDib){ - if (row) { - if (row<(DWORD)head.biHeight){ - return ((BYTE*)pDib + *(DWORD*)pDib + GetPaletteSize() + (info.dwEffWidth * row)); - } else { - return NULL; - } - } else { - return ((BYTE*)pDib + *(DWORD*)pDib + GetPaletteSize()); - } - } - return NULL; -} -//////////////////////////////////////////////////////////////////////////////// -/** - * \return the size in bytes of the internal pDib object - */ -long CxImage::GetSize() -{ - return head.biSize + head.biSizeImage + GetPaletteSize(); -} -//////////////////////////////////////////////////////////////////////////////// -/** - * Checks if the coordinates are inside the image - * \return true if x and y are both inside the image - */ -bool CxImage::IsInside(long x, long y) -{ - return (0<=y && y 0) bval = 255; - } - if (GetBpp() == 4){ - bval = (BYTE)(17*(0x0F & bval)); - } - - memset(info.pImage,bval,head.biSizeImage); -} -//////////////////////////////////////////////////////////////////////////////// -/** - * Transfers the image from an existing source image. The source becomes empty. - * \return true if everything is ok - */ -bool CxImage::Transfer(CxImage &from, bool bTransferFrames /*=true*/) -{ - if (!Destroy()) - return false; - - memcpy(&head,&from.head,sizeof(BITMAPINFOHEADER)); - memcpy(&info,&from.info,sizeof(CXIMAGEINFO)); - - pDib = from.pDib; - pSelection = from.pSelection; - pAlpha = from.pAlpha; - ppLayers = from.ppLayers; - - memset(&from.head,0,sizeof(BITMAPINFOHEADER)); - memset(&from.info,0,sizeof(CXIMAGEINFO)); - from.pDib = from.pSelection = from.pAlpha = NULL; - from.ppLayers = NULL; - - if (bTransferFrames){ - DestroyFrames(); - ppFrames = from.ppFrames; - from.ppFrames = NULL; - } - - return true; -} -//////////////////////////////////////////////////////////////////////////////// -/** - * (this) points to the same pDib owned by (*from), the image remains in (*from) - * but (this) has the access to the pixels. Use carefully !!! - */ -void CxImage::Ghost(const CxImage *from) -{ - if (from){ - memcpy(&head,&from->head,sizeof(BITMAPINFOHEADER)); - memcpy(&info,&from->info,sizeof(CXIMAGEINFO)); - pDib = from->pDib; - pSelection = from->pSelection; - pAlpha = from->pAlpha; - ppLayers = from->ppLayers; - ppFrames = from->ppFrames; - info.pGhost=(CxImage *)from; - } -} -//////////////////////////////////////////////////////////////////////////////// -/** - * turns a 16 or 32 bit bitfield image into a RGB image - */ -void CxImage::Bitfield2RGB(BYTE *src, DWORD redmask, DWORD greenmask, DWORD bluemask, BYTE bpp) -{ - switch (bpp){ - case 16: - { - DWORD ns[3]={0,0,0}; - // compute the number of shift for each mask - for (int i=0;i<16;i++){ - if ((redmask>>i)&0x01) ns[0]++; - if ((greenmask>>i)&0x01) ns[1]++; - if ((bluemask>>i)&0x01) ns[2]++; - } - ns[1]+=ns[0]; ns[2]+=ns[1]; ns[0]=8-ns[0]; ns[1]-=8; ns[2]-=8; - // dword aligned width for 16 bit image - long effwidth2=(((head.biWidth + 1) / 2) * 4); - WORD w; - long y2,y3,x2,x3; - BYTE *p=info.pImage; - // scan the buffer in reverse direction to avoid reallocations - for (long y=head.biHeight-1; y>=0; y--){ - y2=effwidth2*y; - y3=info.dwEffWidth*y; - for (long x=head.biWidth-1; x>=0; x--){ - x2 = 2*x+y2; - x3 = 3*x+y3; - w = (WORD)(src[x2]+256*src[1+x2]); - p[ x3]=(BYTE)((w & bluemask)<>ns[1]); - p[2+x3]=(BYTE)((w & redmask)>>ns[2]); - } - } - break; - } - case 32: - { - DWORD ns[3]={0,0,0}; - // compute the number of shift for each mask - for (int i=8;i<32;i+=8){ - if (redmask>>i) ns[0]++; - if (greenmask>>i) ns[1]++; - if (bluemask>>i) ns[2]++; - } - // dword aligned width for 32 bit image - long effwidth4 = head.biWidth * 4; - long y4,y3,x4,x3; - BYTE *p=info.pImage; - // scan the buffer in reverse direction to avoid reallocations - for (long y=head.biHeight-1; y>=0; y--){ - y4=effwidth4*y; - y3=info.dwEffWidth*y; - for (long x=head.biWidth-1; x>=0; x--){ - x4 = 4*x+y4; - x3 = 3*x+y3; - p[ x3]=src[ns[2]+x4]; - p[1+x3]=src[ns[1]+x4]; - p[2+x3]=src[ns[0]+x4]; - } - } - } - - } - return; -} -//////////////////////////////////////////////////////////////////////////////// -/** - * Creates an image from a generic buffer - * \param pArray: source memory buffer - * \param dwWidth: image width - * \param dwHeight: image height - * \param dwBitsperpixel: can be 1,4,8,24,32 - * \param dwBytesperline: line alignment, in bytes, for a single row stored in pArray - * \param bFlipImage: tune this parameter if the image is upsidedown - * \return true if everything is ok - */ -bool CxImage::CreateFromArray(BYTE* pArray,DWORD dwWidth,DWORD dwHeight,DWORD dwBitsperpixel, DWORD dwBytesperline, bool bFlipImage) -{ - if (pArray==NULL) return false; - if (!((dwBitsperpixel==1)||(dwBitsperpixel==4)||(dwBitsperpixel==8)|| - (dwBitsperpixel==24)||(dwBitsperpixel==32))) return false; - - if (!Create(dwWidth,dwHeight,dwBitsperpixel)) return false; - - if (dwBitsperpixel<24) SetGrayPalette(); - -#if CXIMAGE_SUPPORT_ALPHA - if (dwBitsperpixel==32) AlphaCreate(); -#endif //CXIMAGE_SUPPORT_ALPHA - - BYTE *dst,*src; - - for (DWORD y = 0; yrgbRed,c1->rgbGreen,c1->rgbBlue); - int g2 = (int)RGB2GRAY(c2->rgbRed,c2->rgbGreen,c2->rgbBlue); - - return (g1-g2); -} -//////////////////////////////////////////////////////////////////////////////// -/** - * simply calls "if (memblock) free(memblock);". - * Useful when calling Encode for a memory buffer, - * from a DLL compiled with different memory management options. - * CxImage::FreeMemory will use the same memory environment used by Encode. - * \author [livecn] - */ -void CxImage::FreeMemory(void* memblock) -{ - if (memblock) - free(memblock); -} -//////////////////////////////////////////////////////////////////////////////// -//EOF diff --git a/src/3rdParty/CxImage/CxImage/ximage.h b/src/3rdParty/CxImage/CxImage/ximage.h deleted file mode 100644 index 80ea91490e..0000000000 --- a/src/3rdParty/CxImage/CxImage/ximage.h +++ /dev/null @@ -1,735 +0,0 @@ -/* - * File: ximage.h - * Purpose: General Purpose Image Class - */ -/* - -------------------------------------------------------------------------------- - - COPYRIGHT NOTICE, DISCLAIMER, and LICENSE: - - CxImage version 6.0.0 02/Feb/2008 - - CxImage : Copyright (C) 2001 - 2008, Davide Pizzolato - - Original CImage and CImageIterator implementation are: - Copyright (C) 1995, Alejandro Aguilar Sierra (asierra(at)servidor(dot)unam(dot)mx) - - Covered code is provided under this license on an "as is" basis, without warranty - of any kind, either expressed or implied, including, without limitation, warranties - that the covered code is free of defects, merchantable, fit for a particular purpose - or non-infringing. The entire risk as to the quality and performance of the covered - code is with you. Should any covered code prove defective in any respect, you (not - the initial developer or any other contributor) assume the cost of any necessary - servicing, repair or correction. This disclaimer of warranty constitutes an essential - part of this license. No use of any covered code is authorized hereunder except under - this disclaimer. - - Permission is hereby granted to use, copy, modify, and distribute this - source code, or portions hereof, for any purpose, including commercial applications, - freely and without fee, subject to the following restrictions: - - 1. The origin of this software must not be misrepresented; you must not - claim that you wrote the original software. If you use this software - in a product, an acknowledgment in the product documentation would be - appreciated but is not required. - - 2. Altered source versions must be plainly marked as such, and must not be - misrepresented as being the original software. - - 3. This notice may not be removed or altered from any source distribution. - - -------------------------------------------------------------------------------- - - Other information about CxImage, and the latest version, can be found at the - CxImage home page: http://www.xdp.it/cximage/ - - -------------------------------------------------------------------------------- - */ -#if !defined(__CXIMAGE_H) -#define __CXIMAGE_H - -#if _MSC_VER > 1000 -#pragma once -#endif - -///////////////////////////////////////////////////////////////////////////// -#include "xfile.h" -#include "xiofile.h" -#include "xmemfile.h" -#include "ximadef.h" // adjust some #define - -/* see "ximacfg.h" for CxImage configuration options */ - -///////////////////////////////////////////////////////////////////////////// -// CxImage formats enumerator -enum ENUM_CXIMAGE_FORMATS{ -CXIMAGE_FORMAT_UNKNOWN = 0, -#if CXIMAGE_SUPPORT_BMP -CXIMAGE_FORMAT_BMP = 1, -#endif -#if CXIMAGE_SUPPORT_GIF -CXIMAGE_FORMAT_GIF = 2, -#endif -#if CXIMAGE_SUPPORT_JPG -CXIMAGE_FORMAT_JPG = 3, -#endif -#if CXIMAGE_SUPPORT_PNG -CXIMAGE_FORMAT_PNG = 4, -#endif -#if CXIMAGE_SUPPORT_ICO -CXIMAGE_FORMAT_ICO = 5, -#endif -#if CXIMAGE_SUPPORT_TIF -CXIMAGE_FORMAT_TIF = 6, -#endif -#if CXIMAGE_SUPPORT_TGA -CXIMAGE_FORMAT_TGA = 7, -#endif -#if CXIMAGE_SUPPORT_PCX -CXIMAGE_FORMAT_PCX = 8, -#endif -#if CXIMAGE_SUPPORT_WBMP -CXIMAGE_FORMAT_WBMP = 9, -#endif -#if CXIMAGE_SUPPORT_WMF -CXIMAGE_FORMAT_WMF = 10, -#endif -#if CXIMAGE_SUPPORT_JP2 -CXIMAGE_FORMAT_JP2 = 11, -#endif -#if CXIMAGE_SUPPORT_JPC -CXIMAGE_FORMAT_JPC = 12, -#endif -#if CXIMAGE_SUPPORT_PGX -CXIMAGE_FORMAT_PGX = 13, -#endif -#if CXIMAGE_SUPPORT_PNM -CXIMAGE_FORMAT_PNM = 14, -#endif -#if CXIMAGE_SUPPORT_RAS -CXIMAGE_FORMAT_RAS = 15, -#endif -#if CXIMAGE_SUPPORT_JBG -CXIMAGE_FORMAT_JBG = 16, -#endif -#if CXIMAGE_SUPPORT_MNG -CXIMAGE_FORMAT_MNG = 17, -#endif -#if CXIMAGE_SUPPORT_SKA -CXIMAGE_FORMAT_SKA = 18, -#endif -#if CXIMAGE_SUPPORT_RAW -CXIMAGE_FORMAT_RAW = 19, -#endif -CMAX_IMAGE_FORMATS = CXIMAGE_SUPPORT_BMP + CXIMAGE_SUPPORT_GIF + CXIMAGE_SUPPORT_JPG + - CXIMAGE_SUPPORT_PNG + CXIMAGE_SUPPORT_MNG + CXIMAGE_SUPPORT_ICO + - CXIMAGE_SUPPORT_TIF + CXIMAGE_SUPPORT_TGA + CXIMAGE_SUPPORT_PCX + - CXIMAGE_SUPPORT_WBMP+ CXIMAGE_SUPPORT_WMF + - CXIMAGE_SUPPORT_JBG + CXIMAGE_SUPPORT_JP2 + CXIMAGE_SUPPORT_JPC + - CXIMAGE_SUPPORT_PGX + CXIMAGE_SUPPORT_PNM + CXIMAGE_SUPPORT_RAS + - CXIMAGE_SUPPORT_SKA + CXIMAGE_SUPPORT_RAW + 1 -}; - -///////////////////////////////////////////////////////////////////////////// -// CxImage class -///////////////////////////////////////////////////////////////////////////// -class DLL_EXP CxImage -{ -//extensible information collector -typedef struct tagCxImageInfo { - DWORD dwEffWidth; ///< DWORD aligned scan line width - BYTE* pImage; ///< THE IMAGE BITS - CxImage* pGhost; ///< if this is a ghost, pGhost points to the body - CxImage* pParent; ///< if this is a layer, pParent points to the body - DWORD dwType; ///< original image format - char szLastError[256]; ///< debugging - long nProgress; ///< monitor - long nEscape; ///< escape - long nBkgndIndex; ///< used for GIF, PNG, MNG - RGBQUAD nBkgndColor; ///< used for RGB transparency - float fQuality; ///< used for JPEG, JPEG2000 (0.0f ... 100.0f) - BYTE nJpegScale; ///< used for JPEG [ignacio] - long nFrame; ///< used for TIF, GIF, MNG : actual frame - long nNumFrames; ///< used for TIF, GIF, MNG : total number of frames - DWORD dwFrameDelay; ///< used for GIF, MNG - long xDPI; ///< horizontal resolution - long yDPI; ///< vertical resolution - RECT rSelectionBox; ///< bounding rectangle - BYTE nAlphaMax; ///< max opacity (fade) - bool bAlphaPaletteEnabled; ///< true if alpha values in the palette are enabled. - bool bEnabled; ///< enables the painting functions - long xOffset; - long yOffset; - DWORD dwCodecOpt[CMAX_IMAGE_FORMATS]; ///< for GIF, TIF : 0=def.1=unc,2=fax3,3=fax4,4=pack,5=jpg - RGBQUAD last_c; ///< for GetNearestIndex optimization - BYTE last_c_index; - bool last_c_isvalid; - long nNumLayers; - DWORD dwFlags; ///< 0x??00000 = reserved, 0x00??0000 = blend mode, 0x0000???? = layer id - user flags - BYTE dispmeth; - bool bGetAllFrames; - bool bLittleEndianHost; - -} CXIMAGEINFO; - -public: - //public structures -struct rgb_color { BYTE r,g,b; }; - -#if CXIMAGE_SUPPORT_WINDOWS -// text placement data -// members must be initialized with the InitTextInfo(&this) function. -typedef struct tagCxTextInfo -{ -#if defined (_WIN32_WCE) - TCHAR text[256]; ///< text for windows CE -#else - TCHAR text[4096]; ///< text (char -> TCHAR for UNICODE [Cesar M]) -#endif - LOGFONT lfont; ///< font and codepage data - COLORREF fcolor; ///< foreground color - long align; ///< DT_CENTER, DT_RIGHT, DT_LEFT aligment for multiline text - BYTE smooth; ///< text smoothing option. Default is false. - BYTE opaque; ///< text has background or hasn't. Default is true. - ///< data for background (ignored if .opaque==FALSE) - COLORREF bcolor; ///< background color - float b_opacity; ///< opacity value for background between 0.0-1.0 Default is 0. (opaque) - BYTE b_outline; ///< outline width for background (zero: no outline) - BYTE b_round; ///< rounding radius for background rectangle. % of the height, between 0-50. Default is 10. - ///< (backgr. always has a frame: width = 3 pixel + 10% of height by default.) -} CXTEXTINFO; -#endif - -public: -/** \addtogroup Constructors */ //@{ - CxImage(DWORD imagetype = 0); - CxImage(DWORD dwWidth, DWORD dwHeight, DWORD wBpp, DWORD imagetype = 0); - CxImage(const CxImage &src, bool copypixels = true, bool copyselection = true, bool copyalpha = true); - CxImage(const TCHAR * filename, DWORD imagetype); // For UNICODE support: char -> TCHAR - CxImage(FILE * stream, DWORD imagetype); - CxImage(CxFile * stream, DWORD imagetype); - CxImage(BYTE * buffer, DWORD size, DWORD imagetype); - virtual ~CxImage() { DestroyFrames(); Destroy(); }; - CxImage& operator = (const CxImage&); -//@} - -/** \addtogroup Initialization */ //@{ - void* Create(DWORD dwWidth, DWORD dwHeight, DWORD wBpp, DWORD imagetype = 0); - bool Destroy(); - bool DestroyFrames(); - void Clear(BYTE bval=0); - void Copy(const CxImage &src, bool copypixels = true, bool copyselection = true, bool copyalpha = true); - bool Transfer(CxImage &from, bool bTransferFrames = true); - bool CreateFromArray(BYTE* pArray,DWORD dwWidth,DWORD dwHeight,DWORD dwBitsperpixel, DWORD dwBytesperline, bool bFlipImage); - bool CreateFromMatrix(BYTE** ppMatrix,DWORD dwWidth,DWORD dwHeight,DWORD dwBitsperpixel, DWORD dwBytesperline, bool bFlipImage); - void FreeMemory(void* memblock); - - DWORD Dump(BYTE * dst); - DWORD UnDump(const BYTE * src); - DWORD DumpSize(); - -//@} - -/** \addtogroup Attributes */ //@{ - long GetSize(); - BYTE* GetBits(DWORD row = 0); - BYTE GetColorType(); - void* GetDIB() const; - DWORD GetHeight() const; - DWORD GetWidth() const; - DWORD GetEffWidth() const; - DWORD GetNumColors() const; - WORD GetBpp() const; - DWORD GetType() const; - const char* GetLastError(); - static const TCHAR* GetVersion(); - static const float GetVersionNumber(); - - DWORD GetFrameDelay() const; - void SetFrameDelay(DWORD d); - - void GetOffset(long *x,long *y); - void SetOffset(long x,long y); - - BYTE GetJpegQuality() const; - void SetJpegQuality(BYTE q); - float GetJpegQualityF() const; - void SetJpegQualityF(float q); - - BYTE GetJpegScale() const; - void SetJpegScale(BYTE q); - - long GetXDPI() const; - long GetYDPI() const; - void SetXDPI(long dpi); - void SetYDPI(long dpi); - - DWORD GetClrImportant() const; - void SetClrImportant(DWORD ncolors = 0); - - long GetProgress() const; - long GetEscape() const; - void SetProgress(long p); - void SetEscape(long i); - - long GetTransIndex() const; - RGBQUAD GetTransColor(); - void SetTransIndex(long idx); - void SetTransColor(RGBQUAD rgb); - bool IsTransparent() const; - - DWORD GetCodecOption(DWORD imagetype = 0); - bool SetCodecOption(DWORD opt, DWORD imagetype = 0); - - DWORD GetFlags() const; - void SetFlags(DWORD flags, bool bLockReservedFlags = true); - - BYTE GetDisposalMethod() const; - void SetDisposalMethod(BYTE dm); - - bool SetType(DWORD type); - - static DWORD GetNumTypes(); - static DWORD GetTypeIdFromName(const TCHAR* ext); - static DWORD GetTypeIdFromIndex(const DWORD index); - static DWORD GetTypeIndexFromId(const DWORD id); - - bool GetRetreiveAllFrames() const; - void SetRetreiveAllFrames(bool flag); - CxImage * GetFrame(long nFrame) const; - - //void* GetUserData() const {return info.pUserData;} - //void SetUserData(void* pUserData) {info.pUserData = pUserData;} -//@} - -/** \addtogroup Palette - * These functions have no effects on RGB images and in this case the returned value is always 0. - * @{ */ - bool IsGrayScale(); - bool IsIndexed() const; - bool IsSamePalette(CxImage &img, bool bCheckAlpha = true); - DWORD GetPaletteSize(); - RGBQUAD* GetPalette() const; - RGBQUAD GetPaletteColor(BYTE idx); - bool GetPaletteColor(BYTE i, BYTE* r, BYTE* g, BYTE* b); - BYTE GetNearestIndex(RGBQUAD c); - void BlendPalette(COLORREF cr,long perc); - void SetGrayPalette(); - void SetPalette(DWORD n, BYTE *r, BYTE *g, BYTE *b); - void SetPalette(RGBQUAD* pPal,DWORD nColors=256); - void SetPalette(rgb_color *rgb,DWORD nColors=256); - void SetPaletteColor(BYTE idx, BYTE r, BYTE g, BYTE b, BYTE alpha=0); - void SetPaletteColor(BYTE idx, RGBQUAD c); - void SetPaletteColor(BYTE idx, COLORREF cr); - void SwapIndex(BYTE idx1, BYTE idx2); - void SwapRGB2BGR(); - void SetStdPalette(); -//@} - -/** \addtogroup Pixel */ //@{ - bool IsInside(long x, long y); - bool IsTransparent(long x,long y); - bool GetTransparentMask(CxImage* iDst = 0); - RGBQUAD GetPixelColor(long x,long y, bool bGetAlpha = true); - BYTE GetPixelIndex(long x,long y); - BYTE GetPixelGray(long x, long y); - void SetPixelColor(long x,long y,RGBQUAD c, bool bSetAlpha = false); - void SetPixelColor(long x,long y,COLORREF cr); - void SetPixelIndex(long x,long y,BYTE i); - void DrawLine(int StartX, int EndX, int StartY, int EndY, RGBQUAD color, bool bSetAlpha=false); - void DrawLine(int StartX, int EndX, int StartY, int EndY, COLORREF cr); - void BlendPixelColor(long x,long y,RGBQUAD c, float blend, bool bSetAlpha = false); -//@} - -protected: -/** \addtogroup Protected */ //@{ - BYTE BlindGetPixelIndex(const long x,const long y); - RGBQUAD BlindGetPixelColor(const long x,const long y, bool bGetAlpha = true); - void *BlindGetPixelPointer(const long x,const long y); - void BlindSetPixelColor(long x,long y,RGBQUAD c, bool bSetAlpha = false); - void BlindSetPixelIndex(long x,long y,BYTE i); -//@} - -public: - -#if CXIMAGE_SUPPORT_INTERPOLATION -/** \addtogroup Interpolation */ //@{ - //overflow methods: - enum OverflowMethod { - OM_COLOR=1, - OM_BACKGROUND=2, - OM_TRANSPARENT=3, - OM_WRAP=4, - OM_REPEAT=5, - OM_MIRROR=6 - }; - void OverflowCoordinates(float &x, float &y, OverflowMethod const ofMethod); - void OverflowCoordinates(long &x, long &y, OverflowMethod const ofMethod); - RGBQUAD GetPixelColorWithOverflow(long x, long y, OverflowMethod const ofMethod=OM_BACKGROUND, RGBQUAD* const rplColor=0); - //interpolation methods: - enum InterpolationMethod { - IM_NEAREST_NEIGHBOUR=1, - IM_BILINEAR =2, - IM_BSPLINE =3, - IM_BICUBIC =4, - IM_BICUBIC2 =5, - IM_LANCZOS =6, - IM_BOX =7, - IM_HERMITE =8, - IM_HAMMING =9, - IM_SINC =10, - IM_BLACKMAN =11, - IM_BESSEL =12, - IM_GAUSSIAN =13, - IM_QUADRATIC =14, - IM_MITCHELL =15, - IM_CATROM =16, - IM_HANNING =17, - IM_POWER =18 - }; - RGBQUAD GetPixelColorInterpolated(float x,float y, InterpolationMethod const inMethod=IM_BILINEAR, OverflowMethod const ofMethod=OM_BACKGROUND, RGBQUAD* const rplColor=0); - RGBQUAD GetAreaColorInterpolated(float const xc, float const yc, float const w, float const h, InterpolationMethod const inMethod, OverflowMethod const ofMethod=OM_BACKGROUND, RGBQUAD* const rplColor=0); -//@} - -protected: -/** \addtogroup Protected */ //@{ - void AddAveragingCont(RGBQUAD const &color, float const surf, float &rr, float &gg, float &bb, float &aa); -//@} - -/** \addtogroup Kernels */ //@{ -public: - static float KernelBSpline(const float x); - static float KernelLinear(const float t); - static float KernelCubic(const float t); - static float KernelGeneralizedCubic(const float t, const float a=-1); - static float KernelLanczosSinc(const float t, const float r = 3); - static float KernelBox(const float x); - static float KernelHermite(const float x); - static float KernelHamming(const float x); - static float KernelSinc(const float x); - static float KernelBlackman(const float x); - static float KernelBessel_J1(const float x); - static float KernelBessel_P1(const float x); - static float KernelBessel_Q1(const float x); - static float KernelBessel_Order1(float x); - static float KernelBessel(const float x); - static float KernelGaussian(const float x); - static float KernelQuadratic(const float x); - static float KernelMitchell(const float x); - static float KernelCatrom(const float x); - static float KernelHanning(const float x); - static float KernelPower(const float x, const float a = 2); -//@} -#endif //CXIMAGE_SUPPORT_INTERPOLATION - -/** \addtogroup Painting */ //@{ -#if CXIMAGE_SUPPORT_WINDOWS - long Blt(HDC pDC, long x=0, long y=0); - HBITMAP MakeBitmap(HDC hdc = NULL); - HANDLE CopyToHandle(); - bool CreateFromHANDLE(HANDLE hMem); //Windows objects (clipboard) - bool CreateFromHBITMAP(HBITMAP hbmp, HPALETTE hpal=0); //Windows resource - bool CreateFromHICON(HICON hico); - long Draw(HDC hdc, long x=0, long y=0, long cx = -1, long cy = -1, RECT* pClipRect = 0, bool bSmooth = false); - long Draw(HDC hdc, const RECT& rect, RECT* pClipRect=NULL, bool bSmooth = false); - long Stretch(HDC hdc, long xoffset, long yoffset, long xsize, long ysize, DWORD dwRop = SRCCOPY); - long Stretch(HDC hdc, const RECT& rect, DWORD dwRop = SRCCOPY); - long Tile(HDC hdc, RECT *rc); - long Draw2(HDC hdc, long x=0, long y=0, long cx = -1, long cy = -1); - long Draw2(HDC hdc, const RECT& rect); - //long DrawString(HDC hdc, long x, long y, const char* text, RGBQUAD color, const char* font, long lSize=0, long lWeight=400, BYTE bItalic=0, BYTE bUnderline=0, bool bSetAlpha=false); - long DrawString(HDC hdc, long x, long y, const TCHAR* text, RGBQUAD color, const TCHAR* font, long lSize=0, long lWeight=400, BYTE bItalic=0, BYTE bUnderline=0, bool bSetAlpha=false); - // extensions - long DrawStringEx(HDC hdc, long x, long y, CXTEXTINFO *pTextType, bool bSetAlpha=false ); - void InitTextInfo( CXTEXTINFO *txt ); -#endif //CXIMAGE_SUPPORT_WINDOWS -//@} - - // file operations -#if CXIMAGE_SUPPORT_DECODE -/** \addtogroup Decode */ //@{ -#ifdef WIN32 - //bool Load(LPCWSTR filename, DWORD imagetype=0); - bool LoadResource(HRSRC hRes, DWORD imagetype, HMODULE hModule=NULL); -#endif - // For UNICODE support: char -> TCHAR - bool Load(const TCHAR* filename, DWORD imagetype=0); - //bool Load(const char * filename, DWORD imagetype=0); - bool Decode(FILE * hFile, DWORD imagetype); - bool Decode(CxFile * hFile, DWORD imagetype); - bool Decode(BYTE * buffer, DWORD size, DWORD imagetype); - - bool CheckFormat(CxFile * hFile, DWORD imagetype = 0); - bool CheckFormat(BYTE * buffer, DWORD size, DWORD imagetype = 0); -//@} -#endif //CXIMAGE_SUPPORT_DECODE - -#if CXIMAGE_SUPPORT_ENCODE -protected: -/** \addtogroup Protected */ //@{ - bool EncodeSafeCheck(CxFile *hFile); -//@} - -public: -/** \addtogroup Encode */ //@{ -#ifdef WIN32 - //bool Save(LPCWSTR filename, DWORD imagetype=0); -#endif - // For UNICODE support: char -> TCHAR - bool Save(const TCHAR* filename, DWORD imagetype); - //bool Save(const char * filename, DWORD imagetype=0); - bool Encode(FILE * hFile, DWORD imagetype); - bool Encode(CxFile * hFile, DWORD imagetype); - bool Encode(CxFile * hFile, CxImage ** pImages, int pagecount, DWORD imagetype); - bool Encode(FILE *hFile, CxImage ** pImages, int pagecount, DWORD imagetype); - bool Encode(BYTE * &buffer, long &size, DWORD imagetype); - - bool Encode2RGBA(CxFile *hFile, bool bFlipY = false); - bool Encode2RGBA(BYTE * &buffer, long &size, bool bFlipY = false); -//@} -#endif //CXIMAGE_SUPPORT_ENCODE - -/** \addtogroup Attributes */ //@{ - //misc. - bool IsValid() const; - bool IsEnabled() const; - void Enable(bool enable=true); - - // frame operations - long GetNumFrames() const; - long GetFrame() const; - void SetFrame(long nFrame); -//@} - -#if CXIMAGE_SUPPORT_BASICTRANSFORMATIONS -/** \addtogroup BasicTransformations */ //@{ - bool GrayScale(); - bool Flip(bool bFlipSelection = false, bool bFlipAlpha = true); - bool Mirror(bool bMirrorSelection = false, bool bMirrorAlpha = true); - bool Negative(); - bool RotateLeft(CxImage* iDst = NULL); - bool RotateRight(CxImage* iDst = NULL); -//@} -#endif //CXIMAGE_SUPPORT_BASICTRANSFORMATIONS - -#if CXIMAGE_SUPPORT_TRANSFORMATION -/** \addtogroup Transformations */ //@{ - // image operations - bool Rotate(float angle, CxImage* iDst = NULL); - bool Rotate2(float angle, CxImage *iDst = NULL, InterpolationMethod inMethod=IM_BILINEAR, - OverflowMethod ofMethod=OM_BACKGROUND, RGBQUAD *replColor=0, - bool const optimizeRightAngles=true, bool const bKeepOriginalSize=false); - bool Rotate180(CxImage* iDst = NULL); - bool Resample(long newx, long newy, int mode = 1, CxImage* iDst = NULL); - bool Resample2(long newx, long newy, InterpolationMethod const inMethod=IM_BICUBIC2, - OverflowMethod const ofMethod=OM_REPEAT, CxImage* const iDst = NULL, - bool const disableAveraging=false); - bool DecreaseBpp(DWORD nbit, bool errordiffusion, RGBQUAD* ppal = 0, DWORD clrimportant = 0); - bool IncreaseBpp(DWORD nbit); - bool Dither(long method = 0); - bool Crop(long left, long top, long right, long bottom, CxImage* iDst = NULL); - bool Crop(const RECT& rect, CxImage* iDst = NULL); - bool CropRotatedRectangle( long topx, long topy, long width, long height, float angle, CxImage* iDst = NULL); - bool Skew(float xgain, float ygain, long xpivot=0, long ypivot=0, bool bEnableInterpolation = false); - bool Expand(long left, long top, long right, long bottom, RGBQUAD canvascolor, CxImage* iDst = 0); - bool Expand(long newx, long newy, RGBQUAD canvascolor, CxImage* iDst = 0); - bool Thumbnail(long newx, long newy, RGBQUAD canvascolor, CxImage* iDst = 0); - bool CircleTransform(int type,long rmax=0,float Koeff=1.0f); - bool RedEyeRemove(float strength = 0.8f); - bool QIShrink(long newx, long newy, CxImage* const iDst = NULL, bool bChangeBpp = false); - -//@} -#endif //CXIMAGE_SUPPORT_TRANSFORMATION - -#if CXIMAGE_SUPPORT_DSP -/** \addtogroup DSP */ //@{ - bool Contour(); - bool HistogramStretch(long method = 0, double threshold = 0); - bool HistogramEqualize(); - bool HistogramNormalize(); - bool HistogramRoot(); - bool HistogramLog(); - long Histogram(long* red, long* green = 0, long* blue = 0, long* gray = 0, long colorspace = 0); - bool Jitter(long radius=2); - bool Repair(float radius = 0.25f, long niterations = 1, long colorspace = 0); - bool Combine(CxImage* r,CxImage* g,CxImage* b,CxImage* a, long colorspace = 0); - bool FFT2(CxImage* srcReal, CxImage* srcImag, CxImage* dstReal, CxImage* dstImag, long direction = 1, bool bForceFFT = true, bool bMagnitude = true); - bool Noise(long level); - bool Median(long Ksize=3); - bool Gamma(float gamma); - bool GammaRGB(float gammaR, float gammaG, float gammaB); - bool ShiftRGB(long r, long g, long b); - bool Threshold(BYTE level); - bool Threshold(CxImage* pThresholdMask); - bool Threshold2(BYTE level, bool bDirection, RGBQUAD nBkgndColor, bool bSetAlpha = false); - bool Colorize(BYTE hue, BYTE sat, float blend = 1.0f); - bool Light(long brightness, long contrast = 0); - float Mean(); - bool Filter(long* kernel, long Ksize, long Kfactor, long Koffset); - bool Erode(long Ksize=2); - bool Dilate(long Ksize=2); - bool Edge(long Ksize=2); - void HuePalette(float correction=1); - enum ImageOpType { OpAdd, OpAnd, OpXor, OpOr, OpMask, OpSrcCopy, OpDstCopy, OpSub, OpSrcBlend, OpScreen, OpAvg }; - void Mix(CxImage & imgsrc2, ImageOpType op, long lXOffset = 0, long lYOffset = 0, bool bMixAlpha = false); - void MixFrom(CxImage & imagesrc2, long lXOffset, long lYOffset); - bool UnsharpMask(float radius = 5.0f, float amount = 0.5f, int threshold = 0); - bool Lut(BYTE* pLut); - bool Lut(BYTE* pLutR, BYTE* pLutG, BYTE* pLutB, BYTE* pLutA = 0); - bool GaussianBlur(float radius = 1.0f, CxImage* iDst = 0); - bool TextBlur(BYTE threshold = 100, BYTE decay = 2, BYTE max_depth = 5, bool bBlurHorizontal = true, bool bBlurVertical = true, CxImage* iDst = 0); - bool SelectiveBlur(float radius = 1.0f, BYTE threshold = 25, CxImage* iDst = 0); - bool Solarize(BYTE level = 128, bool bLinkedChannels = true); - bool FloodFill(const long xStart, const long yStart, const RGBQUAD cFillColor, const BYTE tolerance = 0, - BYTE nOpacity = 255, const bool bSelectFilledArea = false, const BYTE nSelectionLevel = 255); - bool Saturate(const long saturation, const long colorspace = 1); - bool ConvertColorSpace(const long dstColorSpace, const long srcColorSpace); - int OptimalThreshold(long method = 0, RECT * pBox = 0, CxImage* pContrastMask = 0); - bool AdaptiveThreshold(long method = 0, long nBoxSize = 64, CxImage* pContrastMask = 0, long nBias = 0, float fGlobalLocalBalance = 0.5f); - -//@} - -protected: -/** \addtogroup Protected */ //@{ - bool IsPowerof2(long x); - bool FFT(int dir,int m,double *x,double *y); - bool DFT(int dir,long m,double *x1,double *y1,double *x2,double *y2); - bool RepairChannel(CxImage *ch, float radius); - // - int gen_convolve_matrix (float radius, float **cmatrix_p); - float* gen_lookup_table (float *cmatrix, int cmatrix_length); - void blur_line (float *ctable, float *cmatrix, int cmatrix_length, BYTE* cur_col, BYTE* dest_col, int y, long bytes); - void blur_text (BYTE threshold, BYTE decay, BYTE max_depth, CxImage* iSrc, CxImage* iDst, BYTE bytes); -//@} - -public: -/** \addtogroup ColorSpace */ //@{ - bool SplitRGB(CxImage* r,CxImage* g,CxImage* b); - bool SplitYUV(CxImage* y,CxImage* u,CxImage* v); - bool SplitHSL(CxImage* h,CxImage* s,CxImage* l); - bool SplitYIQ(CxImage* y,CxImage* i,CxImage* q); - bool SplitXYZ(CxImage* x,CxImage* y,CxImage* z); - bool SplitCMYK(CxImage* c,CxImage* m,CxImage* y,CxImage* k); - static RGBQUAD HSLtoRGB(COLORREF cHSLColor); - static RGBQUAD RGBtoHSL(RGBQUAD lRGBColor); - static RGBQUAD HSLtoRGB(RGBQUAD lHSLColor); - static RGBQUAD YUVtoRGB(RGBQUAD lYUVColor); - static RGBQUAD RGBtoYUV(RGBQUAD lRGBColor); - static RGBQUAD YIQtoRGB(RGBQUAD lYIQColor); - static RGBQUAD RGBtoYIQ(RGBQUAD lRGBColor); - static RGBQUAD XYZtoRGB(RGBQUAD lXYZColor); - static RGBQUAD RGBtoXYZ(RGBQUAD lRGBColor); -#endif //CXIMAGE_SUPPORT_DSP - static RGBQUAD RGBtoRGBQUAD(COLORREF cr); - static COLORREF RGBQUADtoRGB (RGBQUAD c); -//@} - -#if CXIMAGE_SUPPORT_SELECTION -/** \addtogroup Selection */ //@{ - bool SelectionClear(BYTE level = 0); - bool SelectionCreate(); - bool SelectionDelete(); - bool SelectionInvert(); - bool SelectionMirror(); - bool SelectionFlip(); - bool SelectionAddRect(RECT r, BYTE level = 255); - bool SelectionAddEllipse(RECT r, BYTE level = 255); - bool SelectionAddPolygon(POINT *points, long npoints, BYTE level = 255); - bool SelectionAddColor(RGBQUAD c, BYTE level = 255); - bool SelectionAddPixel(long x, long y, BYTE level = 255); - bool SelectionCopy(CxImage &from); - bool SelectionIsInside(long x, long y); - bool SelectionIsValid(); - void SelectionGetBox(RECT& r); - bool SelectionToHRGN(HRGN& region); - bool SelectionSplit(CxImage *dest); - BYTE SelectionGet(const long x,const long y); - bool SelectionSet(CxImage &from); - void SelectionRebuildBox(); - BYTE* SelectionGetPointer(const long x = 0,const long y = 0); -//@} - -protected: -/** \addtogroup Protected */ //@{ - bool BlindSelectionIsInside(long x, long y); - BYTE BlindSelectionGet(const long x,const long y); - void SelectionSet(const long x,const long y,const BYTE level); -//@} - -public: - -#endif //CXIMAGE_SUPPORT_SELECTION - -#if CXIMAGE_SUPPORT_ALPHA -/** \addtogroup Alpha */ //@{ - void AlphaClear(); - bool AlphaCreate(); - void AlphaDelete(); - void AlphaInvert(); - bool AlphaMirror(); - bool AlphaFlip(); - bool AlphaCopy(CxImage &from); - bool AlphaSplit(CxImage *dest); - void AlphaStrip(); - void AlphaSet(BYTE level); - bool AlphaSet(CxImage &from); - void AlphaSet(const long x,const long y,const BYTE level); - BYTE AlphaGet(const long x,const long y); - BYTE AlphaGetMax() const; - void AlphaSetMax(BYTE nAlphaMax); - bool AlphaIsValid(); - BYTE* AlphaGetPointer(const long x = 0,const long y = 0); - bool AlphaFromTransparency(); - - void AlphaPaletteClear(); - void AlphaPaletteEnable(bool enable=true); - bool AlphaPaletteIsEnabled(); - bool AlphaPaletteIsValid(); - bool AlphaPaletteSplit(CxImage *dest); -//@} - -protected: -/** \addtogroup Protected */ //@{ - BYTE BlindAlphaGet(const long x,const long y); -//@} -#endif //CXIMAGE_SUPPORT_ALPHA - -public: -#if CXIMAGE_SUPPORT_LAYERS -/** \addtogroup Layers */ //@{ - bool LayerCreate(long position = -1); - bool LayerDelete(long position = -1); - void LayerDeleteAll(); - CxImage* GetLayer(long position); - CxImage* GetParent() const; - long GetNumLayers() const; - long LayerDrawAll(HDC hdc, long x=0, long y=0, long cx = -1, long cy = -1, RECT* pClipRect = 0, bool bSmooth = false); - long LayerDrawAll(HDC hdc, const RECT& rect, RECT* pClipRect=NULL, bool bSmooth = false); -//@} -#endif //CXIMAGE_SUPPORT_LAYERS - -protected: -/** \addtogroup Protected */ //@{ - void Startup(DWORD imagetype = 0); - void CopyInfo(const CxImage &src); - void Ghost(const CxImage *src); - void RGBtoBGR(BYTE *buffer, int length); - static float HueToRGB(float n1,float n2, float hue); - void Bitfield2RGB(BYTE *src, DWORD redmask, DWORD greenmask, DWORD bluemask, BYTE bpp); - static int CompareColors(const void *elem1, const void *elem2); - short ntohs(const short word); - long ntohl(const long dword); - void bihtoh(BITMAPINFOHEADER* bih); - - void* pDib; //contains the header, the palette, the pixels - BITMAPINFOHEADER head; //standard header - CXIMAGEINFO info; //extended information - BYTE* pSelection; //selected region - BYTE* pAlpha; //alpha channel - CxImage** ppLayers; //generic layers - CxImage** ppFrames; -//@} -}; - -//////////////////////////////////////////////////////////////////////////// -#endif // !defined(__CXIMAGE_H) diff --git a/src/3rdParty/CxImage/CxImage/ximagif.cpp b/src/3rdParty/CxImage/CxImage/ximagif.cpp deleted file mode 100644 index d119f0fa73..0000000000 --- a/src/3rdParty/CxImage/CxImage/ximagif.cpp +++ /dev/null @@ -1,1640 +0,0 @@ -/* - * File: ximagif.cpp - * Purpose: Platform Independent GIF Image Class Loader and Writer - * 07/Aug/2001 Davide Pizzolato - www.xdp.it - * CxImage version 6.0.0 02/Feb/2008 - */ - -#include "ximagif.h" - -#if CXIMAGE_SUPPORT_GIF - -#include "ximaiter.h" - -#if defined (_WIN32_WCE) - #define assert(s) -#else - #include -#endif - -//////////////////////////////////////////////////////////////////////////////// -#if CXIMAGE_SUPPORT_DECODE -//////////////////////////////////////////////////////////////////////////////// -bool CxImageGIF::Decode(CxFile *fp) -{ - /* AD - for transparency */ - struct_dscgif dscgif; - struct_image image; - struct_TabCol TabCol; - - if (fp == NULL) return false; - - fp->Read(&dscgif,/*sizeof(dscgif)*/13,1); - //if (strncmp(dscgif.header,"GIF8",3)!=0) { - if (strncmp(dscgif.header,"GIF8",4)!=0) return FALSE; - - // Avoid Byte order problem with Mac - dscgif.scrheight = ntohs(dscgif.scrheight); - dscgif.scrwidth = ntohs(dscgif.scrwidth); - - if (info.nEscape == -1) { - // Return output dimensions only - head.biWidth = dscgif.scrwidth; - head.biHeight = dscgif.scrheight; - info.dwType = CXIMAGE_FORMAT_GIF; - return true; - } - - /* AD - for interlace */ - TabCol.sogct = (short)(1 << ((dscgif.pflds & 0x07)+1)); - TabCol.colres = (short)(((dscgif.pflds & 0x70) >> 4) + 1); - - // assume that the image is a truecolor-gif if - // 1) no global color map found - // 2) (image.w, image.h) of the 1st image != (dscgif.scrwidth, dscgif.scrheight) - long bTrueColor=0; - CxImage* imaRGB=NULL; - - // Global colour map? - if (dscgif.pflds & 0x80) - fp->Read(TabCol.paleta,sizeof(struct rgb_color)*TabCol.sogct,1); - else - bTrueColor++; //first chance for a truecolor gif - - long first_transparent_index = 0; - - int iImage = 0; - info.nNumFrames=get_num_frames(fp,&TabCol,&dscgif); - - if ((info.nFrame<0)||(info.nFrame>=info.nNumFrames)) return false; - - //it cannot be a true color GIF with only one frame - if (info.nNumFrames == 1) - bTrueColor=0; - - char ch; - bool bPreviousWasNull = true; - int prevdispmeth = 0; - CxImage *previousFrame = NULL; - - for (BOOL bContinue = TRUE; bContinue; ) - { - if (fp->Read(&ch, sizeof(ch), 1) != 1) {break;} - - if (info.nEscape > 0) return false; // - cancel decoding - if (bPreviousWasNull || ch==0) - { - switch (ch) - { - case '!': // extension - { - bContinue = DecodeExtension(fp); - break; - } - case ',': // image - { - assert(sizeof(image) == 9); - fp->Read(&image,sizeof(image),1); - //avoid byte order problems with Solaris - image.l = ntohs(image.l); - image.t = ntohs(image.t); - image.w = ntohs(image.w); - image.h = ntohs(image.h); - - if (((image.l + image.w) > dscgif.scrwidth)||((image.t + image.h) > dscgif.scrheight)) - break; - - // check if it could be a truecolor gif - if ((iImage==0) && (image.w != dscgif.scrwidth) && (image.h != dscgif.scrheight)) - bTrueColor++; - - rgb_color locpal[256]; //Local Palette - rgb_color* pcurpal = TabCol.paleta; //Current Palette - short palcount = TabCol.sogct; //Current Palette color count - - // Local colour map? - if (image.pf & 0x80) { - palcount = (short)(1 << ((image.pf & 0x07) +1)); - assert(3 == sizeof(struct rgb_color)); - fp->Read(locpal,sizeof(struct rgb_color)*palcount,1); - pcurpal = locpal; - } - - int bpp; // select the correct bit per pixel value - if (palcount <= 2) bpp = 1; - else if (palcount <= 16) bpp = 4; - else bpp = 8; - - CxImageGIF backimage; - backimage.CopyInfo(*this); - if (iImage==0){ - //first frame: build image background - backimage.Create(dscgif.scrwidth, dscgif.scrheight, bpp, CXIMAGE_FORMAT_GIF); - first_transparent_index = info.nBkgndIndex; - backimage.Clear((BYTE)gifgce.transpcolindex); - previousFrame = new CxImage(backimage); - previousFrame->SetRetreiveAllFrames(false); - } else { - //generic frame: handle disposal method from previous one - /*Values : 0 - No disposal specified. The decoder is - not required to take any action. - 1 - Do not dispose. The graphic is to be left - in place. - 2 - Restore to background color. The area used by the - graphic must be restored to the background color. - 3 - Restore to previous. The decoder is required to - restore the area overwritten by the graphic with - what was there prior to rendering the graphic. - */ - /* backimage.Copy(*this); - if (prevdispmeth==2){ - backimage.Clear((BYTE)first_transparent_index); - }*/ - if (prevdispmeth==2){ - backimage.Copy(*this,false,false,false); - backimage.Clear((BYTE)first_transparent_index); - } else if (prevdispmeth==3) { - backimage.Copy(*this,false,false,false); - backimage.Create(previousFrame->GetWidth(), - previousFrame->GetHeight(), - previousFrame->GetBpp(),CXIMAGE_FORMAT_GIF); - memcpy(backimage.GetDIB(),previousFrame->GetDIB(), - backimage.GetSize()); - backimage.AlphaSet(*previousFrame); - } else { - backimage.Copy(*this); - } - } - - //active frame - Create(image.w, image.h, bpp, CXIMAGE_FORMAT_GIF); - - if ((image.pf & 0x80) || (dscgif.pflds & 0x80)) { - unsigned char r[256], g[256], b[256]; - int i, has_white = 0; - - for (i=0; i < palcount; i++) { - r[i] = pcurpal[i].r; - g[i] = pcurpal[i].g; - b[i] = pcurpal[i].b; - if (RGB(r[i],g[i],b[i]) == 0xFFFFFF) has_white = 1; - } - - // Force transparency colour white... - //if (0) if (info.nBkgndIndex >= 0) - // r[info.nBkgndIndex] = g[info.nBkgndIndex] = b[info.nBkgndIndex] = 255; - // Fill in with white // AD - if (info.nBkgndIndex >= 0) { - while (i < 256) { - has_white = 1; - r[i] = g[i] = b[i] = 255; - i++; - } - } - - // Force last colour to white... // AD - //if ((info.nBkgndIndex >= 0) && !has_white) { - // r[255] = g[255] = b[255] = 255; - //} - - SetPalette((info.nBkgndIndex >= 0 ? 256 : palcount), r, g, b); - } - - CImageIterator* iter = new CImageIterator(this); - iter->Upset(); - int badcode=0; - ibf = GIFBUFTAM+1; - - interlaced = image.pf & 0x40; - iheight = image.h; - istep = 8; - iypos = 0; - ipass = 0; - - long pos_start = fp->Tell(); - //if (interlaced) log << "Interlaced" << endl; - decoder(fp, iter, image.w, badcode); - delete iter; - - if (info.nEscape) return false; // - cancel decoding - - if (bTrueColor<2 ){ //standard GIF: mix frame with background - backimage.GifMix(*this,image); - backimage.SetTransIndex(first_transparent_index); - backimage.SetPalette(GetPalette()); - Transfer(backimage,false); - } else { //it's a truecolor gif! - //force full image decoding - info.nFrame=info.nNumFrames-1; - //build the RGB image - if (imaRGB==NULL) imaRGB = new CxImage(dscgif.scrwidth,dscgif.scrheight,24,CXIMAGE_FORMAT_GIF); - //copy the partial image into the full RGB image - for(long y=0;ySetPixelColor(x+image.l,dscgif.scrheight-1-image.t-y,GetPixelColor(x,image.h-y-1)); - } - } - } - - prevdispmeth = (gifgce.flags >> 2) & 0x7; - - //restore the correct position in the file for the next image - if (badcode){ - seek_next_image(fp,pos_start); - } else { - fp->Seek(-(ibfmax - ibf - 1), SEEK_CUR); - } - - if (info.bGetAllFrames && imaRGB == NULL) { - if (iImage == 0) { - DestroyFrames(); - ppFrames = new CxImage*[info.nNumFrames]; - for(int frameIdx = 0; frameIdx < info.nNumFrames; frameIdx++){ - ppFrames[frameIdx] = NULL; - } - } - ppFrames[iImage] = new CxImage(*this); - ppFrames[iImage]->SetRetreiveAllFrames(false); - } - if (prevdispmeth <= 1) { - delete previousFrame; - previousFrame = new CxImage(*this); - previousFrame->SetRetreiveAllFrames(false); - } - - if (info.nFrame==iImage) bContinue=false; else iImage++; - - break; - } - case ';': //terminator - bContinue=false; - break; - default: - bPreviousWasNull = (ch==0); - break; - } - } - } - - if (bTrueColor>=2 && imaRGB){ - if (gifgce.flags & 0x1){ - imaRGB->SetTransColor(GetPaletteColor((BYTE)info.nBkgndIndex)); - imaRGB->SetTransIndex(0); - } - Transfer(*imaRGB); - } - delete imaRGB; - - delete previousFrame; - - return true; - -} -//////////////////////////////////////////////////////////////////////////////// -bool CxImageGIF::DecodeExtension(CxFile *fp) -{ - bool bContinue; - unsigned char count; - unsigned char fc; - - bContinue = (1 == fp->Read(&fc, sizeof(fc), 1)); - if (bContinue) { - /* AD - for transparency */ - if (fc == 0xF9) { - bContinue = (1 == fp->Read(&count, sizeof(count), 1)); - if (bContinue) { - assert(sizeof(gifgce) == 4); - bContinue = (count == fp->Read(&gifgce, 1, sizeof(gifgce))); - gifgce.delaytime = ntohs(gifgce.delaytime); // Avoid Byte order problem with Mac - if (bContinue) { - info.nBkgndIndex = (gifgce.flags & 0x1) ? gifgce.transpcolindex : -1; - info.dwFrameDelay = gifgce.delaytime; - SetDisposalMethod((gifgce.flags >> 2) & 0x7); - } } } - - if (fc == 0xFE) { // Comment block - bContinue = (1 == fp->Read(&count, sizeof(count), 1)); - if (bContinue) { - bContinue = (1 == fp->Read(m_comment, count, 1)); - m_comment[count]='\0'; - } } - - if (fc == 0xFF) { // Application Extension block - bContinue = (1 == fp->Read(&count, sizeof(count), 1)); - if (bContinue) { - bContinue = (count==11); - if (bContinue){ - char AppID[11]; - bContinue = (1 == fp->Read(AppID, count, 1)); - if (bContinue) { - bContinue = (1 == fp->Read(&count, sizeof(count), 1)); - if (bContinue) { - BYTE* dati = (BYTE*)malloc(count); - bContinue = (dati!=NULL); - if (bContinue){ - bContinue = (1 == fp->Read(dati, count, 1)); - if (count>2){ - m_loops = dati[1]+256*dati[2]; - } - } - free(dati); - } } } } } - - while (bContinue && fp->Read(&count, sizeof(count), 1) && count) { - //log << "Skipping " << count << " bytes" << endl; - fp->Seek(count, SEEK_CUR); - } - } - return bContinue; - -} -//////////////////////////////////////////////////////////////////////////////// -#endif //CXIMAGE_SUPPORT_DECODE -//////////////////////////////////////////////////////////////////////////////// - -// - This external (machine specific) function is expected to return -// either the next BYTE from the GIF file, or a negative error number. -int CxImageGIF::get_byte(CxFile* file) -{ - if (ibf>=GIFBUFTAM){ - // FW 06/02/98 >>> - ibfmax = (int)file->Read( buf , 1 , GIFBUFTAM) ; - if( ibfmax < GIFBUFTAM ) buf[ ibfmax ] = 255 ; - // FW 06/02/98 <<< - ibf = 0; - } - if (ibf>=ibfmax) return -1; // avoid overflows - return buf[ibf++]; -} -//////////////////////////////////////////////////////////////////////////////// -/* - This function takes a full line of pixels (one BYTE per pixel) and - * displays them (or does whatever your program wants with them...). It - * should return zero, or negative if an error or some other event occurs - * which would require aborting the decode process... Note that the length - * passed will almost always be equal to the line length passed to the - * decoder function, with the sole exception occurring when an ending code - * occurs in an odd place in the GIF file... In any case, linelen will be - * equal to the number of pixels passed... -*/ -int CxImageGIF::out_line(CImageIterator* iter, unsigned char *pixels, int linelen) -{ - if (iter == NULL || pixels == NULL) - return -1; - - // for 1 & 4 bpp images, the pixels are compressed - if (head.biBitCount < 8){ - for(long x=0;x> 3); - if (head.biBitCount==4){ - pos = (BYTE)(4*(1-x%2)); - *iDst &= ~(0x0F<SetY(iheight-iypos-1); - iter->SetRow(pixels, linelen); - - if ((iypos += istep) >= iheight) { - do { - if (ipass++ > 0) istep /= 2; - iypos = istep / 2; - } - while (iypos > iheight); - } - return 0; - } else { - if (iter->ItOK()) { - iter->SetRow(pixels, linelen); - (void)iter->PrevRow(); - return 0; - } else { - // puts("chafeo"); - return -1; - } - } -} -//////////////////////////////////////////////////////////////////////////////// -#if CXIMAGE_SUPPORT_ENCODE -//////////////////////////////////////////////////////////////////////////////// -// SaveFile - writes GIF87a gif file -// Randy Spann 6/15/97 -// R.Spann@ConnRiver.net -bool CxImageGIF::Encode(CxFile * fp) -{ - if (EncodeSafeCheck(fp)) return false; - - if(head.biBitCount > 8) { - //strcpy(info.szLastError,"GIF Images must be 8 bit or less"); - //return FALSE; - return EncodeRGB(fp); - } - - if ( GetNumFrames()>1 && ppFrames ) { - return Encode(fp, ppFrames, GetNumFrames() ); - } - - EncodeHeader(fp); - - EncodeExtension(fp); - - EncodeComment(fp); - - EncodeBody(fp); - - fp->PutC(';'); // Write the GIF file terminator - - return true; // done! -} -//////////////////////////////////////////////////////////////////////////////// -bool CxImageGIF::Encode(CxFile * fp, CxImage ** pImages, int pagecount, bool bLocalColorMap, bool bLocalDispMeth) -{ - cx_try { - if (fp==NULL) cx_throw("invalid file pointer"); - if (pImages==NULL || pagecount<=0 || pImages[0]==NULL) cx_throw("multipage GIF, no images!"); - - int i; - for (i=0; iIsValid())) - cx_throw("Empty image"); - if (pImages[i]->GetNumColors()==0) - cx_throw("CxImageGIF::Encode cannot create animated GIFs with a true color frame. Use DecreaseBpp before"); - } - - CxImageGIF ghost; - - //write the first image - ghost.Ghost(pImages[0]); - ghost.EncodeHeader(fp); - - if (m_loops!=1){ - ghost.SetLoops(max(0,m_loops-1)); - ghost.EncodeLoopExtension(fp); - } - - if (bLocalDispMeth) { - ghost.EncodeExtension(fp); - } else { - BYTE dm = ghost.GetDisposalMethod(); - ghost.SetDisposalMethod(GetDisposalMethod()); - ghost.EncodeExtension(fp); - ghost.SetDisposalMethod(dm); - } - - EncodeComment(fp); - - ghost.EncodeBody(fp); - - for (i=1; iPutC(';'); // Write the GIF file terminator - - } cx_catch { - if (strcmp(message,"")) strncpy(info.szLastError,message,255); - return false; - } - return true; -} -//////////////////////////////////////////////////////////////////////////////// -void CxImageGIF::EncodeHeader(CxFile *fp) -{ - fp->Write("GIF89a",1,6); //GIF Header - - Putword(head.biWidth,fp); //Logical screen descriptor - Putword(head.biHeight,fp); - - BYTE Flags; - if (head.biClrUsed==0){ - Flags=0x11; - } else { - Flags = 0x80; - Flags |=(head.biBitCount - 1) << 5; - Flags |=(head.biBitCount - 1); - } - - fp->PutC(Flags); //GIF "packed fields" - fp->PutC(0); //GIF "BackGround" - fp->PutC(0); //GIF "pixel aspect ratio" - - if (head.biClrUsed!=0){ - RGBQUAD* pPal = GetPalette(); - for(DWORD i=0; iPutC(pPal[i].rgbRed); - fp->PutC(pPal[i].rgbGreen); - fp->PutC(pPal[i].rgbBlue); - } - } -} -//////////////////////////////////////////////////////////////////////////////// -void CxImageGIF::EncodeExtension(CxFile *fp) -{ - // TRK BEGIN : transparency - fp->PutC('!'); - fp->PutC(TRANSPARENCY_CODE); - - gifgce.flags = 0; - gifgce.flags |= ((info.nBkgndIndex != -1) ? 1 : 0); - gifgce.flags |= ((GetDisposalMethod() & 0x7) << 2); - gifgce.delaytime = (WORD)info.dwFrameDelay; - gifgce.transpcolindex = (BYTE)info.nBkgndIndex; - - //Invert byte order in case we use a byte order arch, then set it back - gifgce.delaytime = ntohs(gifgce.delaytime); - fp->PutC(sizeof(gifgce)); - fp->Write(&gifgce, sizeof(gifgce), 1); - gifgce.delaytime = ntohs(gifgce.delaytime); - - fp->PutC(0); - // TRK END -} -//////////////////////////////////////////////////////////////////////////////// -void CxImageGIF::EncodeLoopExtension(CxFile *fp) -{ - fp->PutC('!'); //byte 1 : 33 (hex 0x21) GIF Extension code - fp->PutC(255); //byte 2 : 255 (hex 0xFF) Application Extension Label - fp->PutC(11); //byte 3 : 11 (hex (0x0B) Length of Application Block (eleven bytes of data to follow) - fp->Write("NETSCAPE2.0",11,1); - fp->PutC(3); //byte 15 : 3 (hex 0x03) Length of Data Sub-Block (three bytes of data to follow) - fp->PutC(1); //byte 16 : 1 (hex 0x01) - Putword(m_loops,fp); //bytes 17 to 18 : 0 to 65535, an unsigned integer in lo-hi byte format. - //This indicate the number of iterations the loop should be executed. - fp->PutC(0); //bytes 19 : 0 (hex 0x00) a Data Sub-block Terminator. -} -//////////////////////////////////////////////////////////////////////////////// -void CxImageGIF::EncodeBody(CxFile *fp, bool bLocalColorMap) -{ - curx = 0; - cury = head.biHeight - 1; //because we read the image bottom to top - CountDown = (long)head.biWidth * (long)head.biHeight; - - fp->PutC(','); - - Putword(info.xOffset,fp); - Putword(info.yOffset,fp); - Putword(head.biWidth,fp); - Putword(head.biHeight,fp); - - BYTE Flags=0x00; //non-interlaced (0x40 = interlaced) (0x80 = LocalColorMap) - if (bLocalColorMap) { Flags|=0x80; Flags|=head.biBitCount-1; } - fp->PutC(Flags); - - if (bLocalColorMap){ - Flags|=0x87; - RGBQUAD* pPal = GetPalette(); - for(DWORD i=0; iPutC(pPal[i].rgbRed); - fp->PutC(pPal[i].rgbGreen); - fp->PutC(pPal[i].rgbBlue); - } - } - - int InitCodeSize = head.biBitCount <=1 ? 2 : head.biBitCount; - // Write out the initial code size - fp->PutC((BYTE)InitCodeSize); - - // Go and actually compress the data - switch (GetCodecOption(CXIMAGE_FORMAT_GIF)) - { - case 1: //uncompressed - compressNONE(InitCodeSize+1, fp); - break; - case 2: //RLE - compressRLE(InitCodeSize+1, fp); - break; - default: //LZW - compressLZW(InitCodeSize+1, fp); - } - - // Write out a Zero-length packet (to end the series) - fp->PutC(0); -} -//////////////////////////////////////////////////////////////////////////////// -void CxImageGIF::EncodeComment(CxFile *fp) -{ - unsigned long n = (unsigned long) strlen(m_comment); - if (n>255) n=255; - if (n) { - fp->PutC('!'); //extension code: - fp->PutC(254); //comment extension - fp->PutC((BYTE)n); //size of comment - fp->Write(m_comment,n,1); - fp->PutC(0); //block terminator - } -} -//////////////////////////////////////////////////////////////////////////////// -bool CxImageGIF::EncodeRGB(CxFile *fp) -{ - EncodeHeader(fp); - -// EncodeLoopExtension(fp); - - EncodeComment(fp); - - unsigned long w,h; - w=h=0; - const long cellw = 17; - const long cellh = 15; - CxImageGIF tmp; - for (long y=0;yPutC(';'); // Write the GIF file terminator - - return true; // done! -} -//////////////////////////////////////////////////////////////////////////////// -#endif // CXIMAGE_SUPPORT_ENCODE -//////////////////////////////////////////////////////////////////////////////// -// Return the next pixel from the image -// fix for 1 & 4 bpp images -int CxImageGIF::GifNextPixel( ) -{ - if( CountDown == 0 ) return EOF; - --CountDown; - int r = GetPixelIndex(curx,cury); - // Bump the current X position - ++curx; - if( curx == head.biWidth ){ - curx = 0; - cury--; //bottom to top - } - return r; -} -//////////////////////////////////////////////////////////////////////////////// -void CxImageGIF::Putword(int w, CxFile *fp ) -{ - fp->PutC((BYTE)(w & 0xff)); - fp->PutC((BYTE)((w >> 8) & 0xff)); -} -//////////////////////////////////////////////////////////////////////////////// -void CxImageGIF::compressNONE( int init_bits, CxFile* outfile) -{ - register long c; - register long ent; - - // g_init_bits - initial number of bits - // g_outfile - pointer to output file - g_init_bits = init_bits; - g_outfile = outfile; - - // Set up the necessary values - cur_accum = cur_bits = clear_flg = 0; - maxcode = (short)MAXCODE(n_bits = g_init_bits); - code_int maxmaxcode = (code_int)1 << MAXBITSCODES; - - ClearCode = (1 << (init_bits - 1)); - EOFCode = ClearCode + 1; - free_ent = (short)(ClearCode + 2); - - a_count=0; - ent = GifNextPixel( ); - - output( (code_int)ClearCode ); - - while ( ent != EOF ) { - c = GifNextPixel(); - - output ( (code_int) ent ); - ent = c; - if ( free_ent < maxmaxcode ) { - free_ent++; - } else { - free_ent=(short)(ClearCode+2); - clear_flg=1; - output((code_int)ClearCode); - } - } - // Put out the final code. - output( (code_int) EOFCode ); -} -//////////////////////////////////////////////////////////////////////////////// - -/*************************************************************************** - * - * GIFCOMPR.C - LZW GIF Image compression routines - * - ***************************************************************************/ - -void CxImageGIF::compressLZW( int init_bits, CxFile* outfile) -{ - register long fcode; - register long c; - register long ent; - register long hshift; - register long disp; - register long i; - - // g_init_bits - initial number of bits - // g_outfile - pointer to output file - g_init_bits = init_bits; - g_outfile = outfile; - - // Set up the necessary values - cur_accum = cur_bits = clear_flg = 0; - maxcode = (short)MAXCODE(n_bits = g_init_bits); - code_int maxmaxcode = (code_int)1 << MAXBITSCODES; - - ClearCode = (1 << (init_bits - 1)); - EOFCode = ClearCode + 1; - free_ent = (short)(ClearCode + 2); - - a_count=0; - ent = GifNextPixel( ); - - hshift = 0; - for ( fcode = (long) HSIZE; fcode < 65536L; fcode *= 2L ) ++hshift; - hshift = 8 - hshift; /* set hash code range bound */ - cl_hash((long)HSIZE); /* clear hash table */ - output( (code_int)ClearCode ); - - while ( (c = GifNextPixel( )) != EOF ) { - - fcode = (long) (((long) c << MAXBITSCODES) + ent); - i = (((code_int)c << hshift) ^ ent); /* xor hashing */ - - if ( HashTabOf (i) == fcode ) { - ent = CodeTabOf (i); - continue; - } else if ( (long)HashTabOf (i) < 0 ) /* empty slot */ - goto nomatch; - disp = HSIZE - i; /* secondary hash (after G. Knott) */ - if ( i == 0 ) disp = 1; -probe: - if ( (i -= disp) < 0 ) i += HSIZE; - if ( HashTabOf (i) == fcode ) { ent = CodeTabOf (i); continue; } - if ( (long)HashTabOf (i) > 0 ) goto probe; -nomatch: - output ( (code_int) ent ); - ent = c; - if ( free_ent < maxmaxcode ) { - CodeTabOf (i) = free_ent++; /* code -> hashtable */ - HashTabOf (i) = fcode; - } else { - cl_hash((long)HSIZE); - free_ent=(short)(ClearCode+2); - clear_flg=1; - output((code_int)ClearCode); - } - } - // Put out the final code. - output( (code_int)ent ); - output( (code_int) EOFCode ); -} -//////////////////////////////////////////////////////////////////////////////// - -static const unsigned long code_mask[] = { 0x0000, 0x0001, 0x0003, 0x0007, 0x000F, - 0x001F, 0x003F, 0x007F, 0x00FF, - 0x01FF, 0x03FF, 0x07FF, 0x0FFF, - 0x1FFF, 0x3FFF, 0x7FFF, 0xFFFF }; - -//////////////////////////////////////////////////////////////////////////////// -void CxImageGIF::output( code_int code) -{ - cur_accum &= code_mask[ cur_bits ]; - - if( cur_bits > 0 ) - cur_accum |= ((long)code << cur_bits); - else - cur_accum = code; - - cur_bits += n_bits; - - while( cur_bits >= 8 ) { - char_out( (unsigned int)(cur_accum & 0xff) ); - cur_accum >>= 8; - cur_bits -= 8; - } - - /* - * If the next entry is going to be too big for the code size, - * then increase it, if possible. - */ - - if ( free_ent > maxcode || clear_flg ) { - if( clear_flg ) { - maxcode = (short)MAXCODE(n_bits = g_init_bits); - clear_flg = 0; - } else { - ++n_bits; - if ( n_bits == MAXBITSCODES ) - maxcode = (code_int)1 << MAXBITSCODES; /* should NEVER generate this code */ - else - maxcode = (short)MAXCODE(n_bits); - } - } - - if( code == EOFCode ) { - // At EOF, write the rest of the buffer. - while( cur_bits > 0 ) { - char_out( (unsigned int)(cur_accum & 0xff) ); - cur_accum >>= 8; - cur_bits -= 8; - } - - flush_char(); - g_outfile->Flush(); - - if(g_outfile->Error()) strcpy(info.szLastError,"Write Error in GIF file"); - } -} -//////////////////////////////////////////////////////////////////////////////// - -void CxImageGIF::cl_hash(long hsize) - -{ - register long *htab_p = htab+hsize; - - register long i; - register long m1 = -1L; - - i = hsize - 16; - - do { - *(htab_p-16)=m1; - *(htab_p-15)=m1; - *(htab_p-14)=m1; - *(htab_p-13)=m1; - *(htab_p-12)=m1; - *(htab_p-11)=m1; - *(htab_p-10)=m1; - *(htab_p-9)=m1; - *(htab_p-8)=m1; - *(htab_p-7)=m1; - *(htab_p-6)=m1; - *(htab_p-5)=m1; - *(htab_p-4)=m1; - *(htab_p-3)=m1; - *(htab_p-2)=m1; - *(htab_p-1)=m1; - - htab_p-=16; - } while ((i-=16) >=0); - - for (i+=16;i>0;--i) - *--htab_p=m1; -} - -/******************************************************************************* -* GIF specific -*******************************************************************************/ - -void CxImageGIF::char_out(int c) -{ - accum[a_count++]=(char)c; - if (a_count >=254) - flush_char(); -} - -void CxImageGIF::flush_char() -{ - if (a_count > 0) { - g_outfile->PutC((BYTE)a_count); - g_outfile->Write(accum,1,a_count); - a_count=0; - } -} - -/******************************************************************************* -* GIF decoder -*******************************************************************************/ -/* DECODE.C - An LZW decoder for GIF - * Copyright (C) 1987, by Steven A. Bennett - * Copyright (C) 1994, C++ version by Alejandro Aguilar Sierra -* - * Permission is given by the author to freely redistribute and include - * this code in any program as long as this credit is given where due. - * - * In accordance with the above, I want to credit Steve Wilhite who wrote - * the code which this is heavily inspired by... - * - * GIF and 'Graphics Interchange Format' are trademarks (tm) of - * Compuserve, Incorporated, an H&R Block Company. - * - * Release Notes: This file contains a decoder routine for GIF images - * which is similar, structurally, to the original routine by Steve Wilhite. - * It is, however, somewhat noticably faster in most cases. - * - */ - -//////////////////////////////////////////////////////////////////////////////// - -short CxImageGIF::init_exp(short size) -{ - curr_size = (short)(size + 1); - top_slot = (short)(1 << curr_size); - clear = (short)(1 << size); - ending = (short)(clear + 1); - slot = newcodes = (short)(ending + 1); - navail_bytes = nbits_left = 0; - - memset(stack,0,MAX_CODES + 1); - memset(prefix,0,MAX_CODES + 1); - memset(suffix,0,MAX_CODES + 1); - return(0); -} -//////////////////////////////////////////////////////////////////////////////// - -/* get_next_code() - * - gets the next code from the GIF file. Returns the code, or else - * a negative number in case of file errors... - */ -short CxImageGIF::get_next_code(CxFile* file) -{ - short i, x; - DWORD ret; - - if (nbits_left == 0) { - if (navail_bytes <= 0) { - /* Out of bytes in current block, so read next block */ - pbytes = byte_buff; - if ((navail_bytes = (short)get_byte(file)) < 0) - return(navail_bytes); - else if (navail_bytes) { - for (i = 0; i < navail_bytes; ++i) { - if ((x = (short)get_byte(file)) < 0) return(x); - byte_buff[i] = (BYTE)x; - } - } - } - b1 = *pbytes++; - nbits_left = 8; - --navail_bytes; - } - - if (navail_bytes<0) return ending; // prevent deadlocks (thanks to Mike Melnikov) - - ret = b1 >> (8 - nbits_left); - while (curr_size > nbits_left){ - if (navail_bytes <= 0){ - /* Out of bytes in current block, so read next block*/ - pbytes = byte_buff; - if ((navail_bytes = (short)get_byte(file)) < 0) - return(navail_bytes); - else if (navail_bytes){ - for (i = 0; i < navail_bytes; ++i){ - if ((x = (short)get_byte(file)) < 0) return(x); - byte_buff[i] = (BYTE)x; - } - } - } - b1 = *pbytes++; - ret |= b1 << nbits_left; - nbits_left += 8; - --navail_bytes; - } - nbits_left = (short)(nbits_left-curr_size); - ret &= code_mask[curr_size]; - return((short)(ret)); -} -//////////////////////////////////////////////////////////////////////////////// - -/* short decoder(linewidth) - * short linewidth; * Pixels per line of image * - * - * - This function decodes an LZW image, according to the method used - * in the GIF spec. Every *linewidth* "characters" (ie. pixels) decoded - * will generate a call to out_line(), which is a user specific function - * to display a line of pixels. The function gets it's codes from - * get_next_code() which is responsible for reading blocks of data and - * seperating them into the proper size codes. Finally, get_byte() is - * the global routine to read the next BYTE from the GIF file. - * - * It is generally a good idea to have linewidth correspond to the actual - * width of a line (as specified in the Image header) to make your own - * code a bit simpler, but it isn't absolutely necessary. - * - * Returns: 0 if successful, else negative. (See ERRS.H) - * - */ -/* bad_code_count is incremented each time an out of range code is read. - * When this value is non-zero after a decode, your GIF file is probably - * corrupt in some way... - */ -short CxImageGIF::decoder(CxFile* file, CImageIterator* iter, short linewidth, int &bad_code_count) -{ - register BYTE *sp, *bufptr; - BYTE *buf; - register short code, fc, oc, bufcnt; - short c, size, ret; - - /* Initialize for decoding a new image... */ - bad_code_count = 0; - if ((size = (short)get_byte(file)) < 0) return(size); - if (size < 2 || 9 < size) return(BAD_CODE_SIZE); - // out_line = outline; - init_exp(size); - //printf("L %d %x\n",linewidth,size); - - /* Initialize in case they forgot to put in a clear code. - * (This shouldn't happen, but we'll try and decode it anyway...) - */ - oc = fc = 0; - - /* Allocate space for the decode buffer */ - if ((buf = new BYTE[linewidth + 1]) == NULL) return(OUT_OF_MEMORY); - - /* Set up the stack pointer and decode buffer pointer */ - sp = stack; - bufptr = buf; - bufcnt = linewidth; - - /* This is the main loop. For each code we get we pass through the - * linked list of prefix codes, pushing the corresponding "character" for - * each code onto the stack. When the list reaches a single "character" - * we push that on the stack too, and then start unstacking each - * character for output in the correct order. Special handling is - * included for the clear code, and the whole thing ends when we get - * an ending code. - */ - while ((c = get_next_code(file)) != ending) { - /* If we had a file error, return without completing the decode*/ - if (c < 0){ - delete [] buf; - return(0); - } - /* If the code is a clear code, reinitialize all necessary items.*/ - if (c == clear){ - curr_size = (short)(size + 1); - slot = newcodes; - top_slot = (short)(1 << curr_size); - - /* Continue reading codes until we get a non-clear code - * (Another unlikely, but possible case...) - */ - while ((c = get_next_code(file)) == clear); - - /* If we get an ending code immediately after a clear code - * (Yet another unlikely case), then break out of the loop. - */ - if (c == ending) break; - - /* Finally, if the code is beyond the range of already set codes, - * (This one had better NOT happen... I have no idea what will - * result from this, but I doubt it will look good...) then set it - * to color zero. - */ - if (c >= slot) c = 0; - oc = fc = c; - - /* And let us not forget to put the char into the buffer... And - * if, on the off chance, we were exactly one pixel from the end - * of the line, we have to send the buffer to the out_line() - * routine... - */ - *bufptr++ = (BYTE)c; - if (--bufcnt == 0) { - if (iter) { - if ((ret = (short)out_line(iter, buf, linewidth)) < 0) { - delete [] buf; - return(ret); - } - } - bufptr = buf; - bufcnt = linewidth; - } - } else { - /* In this case, it's not a clear code or an ending code, so - * it must be a code code... So we can now decode the code into - * a stack of character codes. (Clear as mud, right?) - */ - code = c; - - /* Here we go again with one of those off chances... If, on the - * off chance, the code we got is beyond the range of those already - * set up (Another thing which had better NOT happen...) we trick - * the decoder into thinking it actually got the last code read. - * (Hmmn... I'm not sure why this works... But it does...) - */ - if (code >= slot && sp<(stack+MAX_CODES-1)) { - if (code > slot) - ++bad_code_count; - code = oc; - *sp++ = (BYTE)fc; - } - - /* Here we scan back along the linked list of prefixes, pushing - * helpless characters (ie. suffixes) onto the stack as we do so. - */ - while (code >= newcodes && sp<(stack+MAX_CODES-1)) { - *sp++ = suffix[code]; - code = prefix[code]; - } - - /* Push the last character on the stack, and set up the new - * prefix and suffix, and if the required slot number is greater - * than that allowed by the current bit size, increase the bit - * size. (NOTE - If we are all full, we *don't* save the new - * suffix and prefix... I'm not certain if this is correct... - * it might be more proper to overwrite the last code... - */ - *sp++ = (BYTE)code; - if (slot < top_slot){ - suffix[slot] = (BYTE)(fc = (BYTE)code); - prefix[slot++] = oc; - oc = c; - } - if (slot >= top_slot){ - if (curr_size < 12) { - top_slot <<= 1; - ++curr_size; - } - } - - /* Now that we've pushed the decoded string (in reverse order) - * onto the stack, lets pop it off and put it into our decode - * buffer... And when the decode buffer is full, write another - * line... - */ - while (sp > stack) { - *bufptr++ = *(--sp); - if (--bufcnt == 0) { - if (iter) { - if ((ret = (short)out_line(iter, buf, linewidth)) < 0) { - delete [] buf; - return(ret); - } - } - bufptr = buf; - bufcnt = linewidth; - } - } - } - } - ret = 0; - if (bufcnt != linewidth && iter) - ret = (short)out_line(iter, buf, (linewidth - bufcnt)); - delete [] buf; - return(ret); -} -//////////////////////////////////////////////////////////////////////////////// -int CxImageGIF::get_num_frames(CxFile *fp,struct_TabCol* TabColSrc,struct_dscgif* dscgif) -{ - struct_image image; - - long pos=fp->Tell(); - int nframes=0; - - struct_TabCol TempTabCol; - memcpy(&TempTabCol,TabColSrc,sizeof(struct_TabCol)); - - char ch; - bool bPreviousWasNull = true; - - for (BOOL bContinue = TRUE; bContinue; ) - { - if (fp->Read(&ch, sizeof(ch), 1) != 1) {break;} - - if (bPreviousWasNull || ch==0) - { - switch (ch) - { - case '!': // extension - { - DecodeExtension(fp); - break; - } - case ',': // image - { - - assert(sizeof(image) == 9); - //log << "Image header" << endl; - fp->Read(&image,sizeof(image),1); - - //avoid byte order problems with Solaris - image.l = ntohs(image.l); - image.t = ntohs(image.t); - image.w = ntohs(image.w); - image.h = ntohs(image.h); - - // in case of images with empty screen descriptor, give a last chance - if (dscgif->scrwidth==0 && dscgif->scrheight==0){ - dscgif->scrwidth = image.w; - dscgif->scrheight = image.h; - } - - if (((image.l + image.w) > dscgif->scrwidth)||((image.t + image.h) > dscgif->scrheight)) - break; - - nframes++; - - // Local colour map? - if (image.pf & 0x80) { - TempTabCol.sogct = (short)(1 << ((image.pf & 0x07) +1)); - assert(3 == sizeof(struct rgb_color)); - fp->Read(TempTabCol.paleta,sizeof(struct rgb_color)*TempTabCol.sogct,1); - //log << "Local colour map" << endl; - } - - int badcode=0; - ibf = GIFBUFTAM+1; - - interlaced = image.pf & 0x40; - iheight = image.h; - istep = 8; - iypos = 0; - ipass = 0; - - long pos_start = fp->Tell(); - - //if (interlaced) log << "Interlaced" << endl; - decoder(fp, 0, image.w, badcode); - - if (badcode){ - seek_next_image(fp,pos_start); - } else { - fp->Seek(-(ibfmax - ibf - 1), SEEK_CUR); - } - - break; - } - case ';': //terminator - bContinue=false; - break; - default: - bPreviousWasNull = (ch==0); - break; - } - } - } - - fp->Seek(pos,SEEK_SET); - return nframes; -} -//////////////////////////////////////////////////////////////////////////////// -long CxImageGIF::seek_next_image(CxFile* fp, long position) -{ - fp->Seek(position, SEEK_SET); - char ch1,ch2; - ch1=ch2=0; - while(fp->Read(&ch2,sizeof(char),1)>0){ - if (ch1 == 0 && ch2 == ','){ - fp->Seek(-1,SEEK_CUR); - return fp->Tell(); - } else { - ch1 = ch2; - } - } - return -1; -} -//////////////////////////////////////////////////////////////////////////////// -void CxImageGIF::SetLoops(int loops) -{ m_loops=loops; } -//////////////////////////////////////////////////////////////////////////////// -long CxImageGIF::GetLoops() -{ return m_loops; } -//////////////////////////////////////////////////////////////////////////////// -void CxImageGIF::SetComment(const char* sz_comment_in) -{ if (sz_comment_in) strncpy(m_comment,sz_comment_in,255); } -//////////////////////////////////////////////////////////////////////////////// -void CxImageGIF::GetComment(char* sz_comment_out) -{ if (sz_comment_out) strncpy(sz_comment_out,m_comment,255); } -//////////////////////////////////////////////////////////////////////////////// -void CxImageGIF::GifMix(CxImage & imgsrc2, struct_image & imgdesc) -{ - long ymin = max(0,(long)(GetHeight()-imgdesc.t - imgdesc.h)); - long ymax = GetHeight()-imgdesc.t; - long xmin = imgdesc.l; - long xmax = min(GetWidth(), (DWORD)(imgdesc.l + imgdesc.w)); - - long ibg2= imgsrc2.GetTransIndex(); - BYTE i2; - - for(long y = ymin; y < ymax; y++){ - for(long x = xmin; x < xmax; x++){ - i2 = imgsrc2.GetPixelIndex(x-xmin,y-ymin); - if(i2!=ibg2) SetPixelIndex(x,y,i2); - } - } -} -//////////////////////////////////////////////////////////////////////////////// -/*----------------------------------------------------------------------- - * - * miGIF Compression - mouse and ivo's GIF-compatible compression - * - * -run length encoding compression routines- - * - * Copyright (C) 1998 Hutchison Avenue Software Corporation - * http://www.hasc.com - * info@hasc.com - * - * Permission to use, copy, modify, and distribute this software and its - * documentation for any purpose and without fee is hereby granted, provided - * that the above copyright notice appear in all copies and that both that - * copyright notice and this permission notice appear in supporting - * documentation. This software is provided "AS IS." The Hutchison Avenue - * Software Corporation disclaims all warranties, either express or implied, - * including but not limited to implied warranties of merchantability and - * fitness for a particular purpose, with respect to this code and accompanying - * documentation. - * - * The miGIF compression routines do not, strictly speaking, generate files - * conforming to the GIF spec, since the image data is not LZW-compressed - * (this is the point: in order to avoid transgression of the Unisys patent - * on the LZW algorithm.) However, miGIF generates data streams that any - * reasonably sane LZW decompresser will decompress to what we want. - * - * miGIF compression uses run length encoding. It compresses horizontal runs - * of pixels of the same color. This type of compression gives good results - * on images with many runs, for example images with lines, text and solid - * shapes on a solid-colored background. It gives little or no compression - * on images with few runs, for example digital or scanned photos. - * - * der Mouse - * mouse@rodents.montreal.qc.ca - * 7D C8 61 52 5D E7 2D 39 4E F1 31 3E E8 B3 27 4B - * - * ivo@hasc.com - * - * The Graphics Interchange Format(c) is the Copyright property of - * CompuServe Incorporated. GIF(sm) is a Service Mark property of - * CompuServe Incorporated. - * - */ -//////////////////////////////////////////////////////////////////////////////// -void CxImageGIF::rle_clear(struct_RLE* rle) -{ - rle->out_bits = rle->out_bits_init; - rle->out_bump = rle->out_bump_init; - rle->out_clear = rle->out_clear_init; - rle->out_count = 0; - rle->rl_table_max = 0; - rle->just_cleared = 1; -} -//////////////////////////////////////////////////////////////////////////////// -void CxImageGIF::rle_flush(struct_RLE* rle) -{ - if (rle->rl_count == 1){ - rle_output_plain(rle->rl_pixel,rle); - rle->rl_count = 0; - return; - } - if (rle->just_cleared){ - rle_flush_fromclear(rle->rl_count,rle); - } else if ((rle->rl_table_max < 2) || (rle->rl_table_pixel != rle->rl_pixel)) { - rle_flush_clearorrep(rle->rl_count,rle); - } else { - rle_flush_withtable(rle->rl_count,rle); - } - rle->rl_count = 0; -} -//////////////////////////////////////////////////////////////////////////////// -void CxImageGIF::rle_output_plain(int c,struct_RLE* rle) -{ - rle->just_cleared = 0; - rle_output(c,rle); - rle->out_count++; - if (rle->out_count >= rle->out_bump){ - rle->out_bits ++; - rle->out_bump += 1 << (rle->out_bits - 1); - } - if (rle->out_count >= rle->out_clear){ - rle_output(rle->code_clear,rle); - rle_clear(rle); - } -} -//////////////////////////////////////////////////////////////////////////////// -void CxImageGIF::rle_flush_fromclear(int count,struct_RLE* rle) -{ - int n; - - rle->out_clear = rle->max_ocodes; - rle->rl_table_pixel = rle->rl_pixel; - n = 1; - while (count > 0){ - if (n == 1){ - rle->rl_table_max = 1; - rle_output_plain(rle->rl_pixel,rle); - count --; - } else if (count >= n){ - rle->rl_table_max = n; - rle_output_plain(rle->rl_basecode+n-2,rle); - count -= n; - } else if (count == 1){ - rle->rl_table_max ++; - rle_output_plain(rle->rl_pixel,rle); - count = 0; - } else { - rle->rl_table_max ++; - rle_output_plain(rle->rl_basecode+count-2,rle); - count = 0; - } - if (rle->out_count == 0) n = 1; else n ++; - } - rle_reset_out_clear(rle); -} -//////////////////////////////////////////////////////////////////////////////// -void CxImageGIF::rle_reset_out_clear(struct_RLE* rle) -{ - rle->out_clear = rle->out_clear_init; - if (rle->out_count >= rle->out_clear){ - rle_output(rle->code_clear,rle); - rle_clear(rle); - } -} -//////////////////////////////////////////////////////////////////////////////// -void CxImageGIF::rle_flush_withtable(int count, struct_RLE* rle) -{ - int repmax; - int repleft; - int leftover; - - repmax = count / rle->rl_table_max; - leftover = count % rle->rl_table_max; - repleft = (leftover ? 1 : 0); - if (rle->out_count+repmax+repleft > rle->max_ocodes){ - repmax = rle->max_ocodes - rle->out_count; - leftover = count - (repmax * rle->rl_table_max); - repleft = 1 + rle_compute_triangle_count(leftover,rle->max_ocodes); - } - if (1+rle_compute_triangle_count(count,rle->max_ocodes) < (unsigned int)(repmax+repleft)){ - rle_output(rle->code_clear,rle); - rle_clear(rle); - rle_flush_fromclear(count,rle); - return; - } - rle->out_clear = rle->max_ocodes; - for (;repmax>0;repmax--) rle_output_plain(rle->rl_basecode+rle->rl_table_max-2,rle); - if (leftover){ - if (rle->just_cleared){ - rle_flush_fromclear(leftover,rle); - } else if (leftover == 1){ - rle_output_plain(rle->rl_pixel,rle); - } else { - rle_output_plain(rle->rl_basecode+leftover-2,rle); - } - } - rle_reset_out_clear(rle); -} -//////////////////////////////////////////////////////////////////////////////// -unsigned int CxImageGIF::rle_compute_triangle_count(unsigned int count, unsigned int nrepcodes) -{ - unsigned int perrep; - unsigned int cost; - - cost = 0; - perrep = (nrepcodes * (nrepcodes+1)) / 2; - while (count >= perrep){ - cost += nrepcodes; - count -= perrep; - } - if (count > 0){ - unsigned int n; - n = rle_isqrt(count); - while ((n*(n+1)) >= 2*count) n --; - while ((n*(n+1)) < 2*count) n ++; - cost += n; - } - return(cost); -} -//////////////////////////////////////////////////////////////////////////////// -unsigned int CxImageGIF::rle_isqrt(unsigned int x) -{ - unsigned int r; - unsigned int v; - - if (x < 2) return(x); - for (v=x,r=1;v;v>>=2,r<<=1) ; - for( ;; ) - { - v = ((x / r) + r) / 2; - if ((v == r) || (v == r+1)) return(r); - r = v; - } -} -//////////////////////////////////////////////////////////////////////////////// -void CxImageGIF::rle_flush_clearorrep(int count, struct_RLE* rle) -{ - int withclr; - withclr = 1 + rle_compute_triangle_count(count,rle->max_ocodes); - if (withclr < count) { - rle_output(rle->code_clear,rle); - rle_clear(rle); - rle_flush_fromclear(count,rle); - } else { - for (;count>0;count--) rle_output_plain(rle->rl_pixel,rle); - } -} -//////////////////////////////////////////////////////////////////////////////// -void CxImageGIF::rle_write_block(struct_RLE* rle) -{ - g_outfile->PutC((BYTE)rle->oblen); - g_outfile->Write(rle->oblock,1,rle->oblen); - rle->oblen = 0; -} -//////////////////////////////////////////////////////////////////////////////// -void CxImageGIF::rle_block_out(unsigned char c, struct_RLE* rle) -{ - rle->oblock[rle->oblen++] = c; - if (rle->oblen >= 255) rle_write_block(rle); -} -//////////////////////////////////////////////////////////////////////////////// -void CxImageGIF::rle_block_flush(struct_RLE* rle) -{ - if (rle->oblen > 0) rle_write_block(rle); -} -//////////////////////////////////////////////////////////////////////////////// -void CxImageGIF::rle_output(int val, struct_RLE* rle) -{ - rle->obuf |= val << rle->obits; - rle->obits += rle->out_bits; - while (rle->obits >= 8){ - rle_block_out((unsigned char)(rle->obuf&0xff),rle); - rle->obuf >>= 8; - rle->obits -= 8; - } -} -//////////////////////////////////////////////////////////////////////////////// -void CxImageGIF::rle_output_flush(struct_RLE* rle) -{ - if (rle->obits > 0) rle_block_out((unsigned char)(rle->obuf),rle); - rle_block_flush(rle); -} -//////////////////////////////////////////////////////////////////////////////// -void CxImageGIF::compressRLE( int init_bits, CxFile* outfile) -{ - g_init_bits = init_bits; - g_outfile = outfile; - - struct_RLE rle; - rle.code_clear = 1 << (init_bits - 1); - rle.code_eof = rle.code_clear + 1; - rle.rl_basecode = rle.code_eof + 1; - rle.out_bump_init = (1 << (init_bits - 1)) - 1; - rle.out_clear_init = (init_bits <= 3) ? 9 : (rle.out_bump_init-1); - rle.out_bits_init = init_bits; - rle.max_ocodes = (1 << MAXBITSCODES) - ((1 << (rle.out_bits_init - 1)) + 3); - rle.rl_count = 0; - rle_clear(&rle); - rle.obuf = 0; - rle.obits = 0; - rle.oblen = 0; - - rle_output(rle.code_clear,&rle); - - int c; - for( ;; ) - { - c = GifNextPixel(); - if ((rle.rl_count > 0) && (c != rle.rl_pixel)) rle_flush(&rle); - if (c == EOF) break; - if (rle.rl_pixel == c){ - rle.rl_count++; - } else { - rle.rl_pixel = c; - rle.rl_count = 1; - } - } - rle_output(rle.code_eof,&rle); - rle_output_flush(&rle); -} -//////////////////////////////////////////////////////////////////////////////// -#endif // CXIMAGE_SUPPORT_GIF diff --git a/src/3rdParty/CxImage/CxImage/ximagif.h b/src/3rdParty/CxImage/CxImage/ximagif.h deleted file mode 100644 index 86a3e58429..0000000000 --- a/src/3rdParty/CxImage/CxImage/ximagif.h +++ /dev/null @@ -1,242 +0,0 @@ -/* - * File: ximagif.h - * Purpose: GIF Image Class Loader and Writer - */ -/* ========================================================== - * CxImageGIF (c) 07/Aug/2001 Davide Pizzolato - www.xdp.it - * For conditions of distribution and use, see copyright notice in ximage.h - * - * Special thanks to Troels Knakkergaard for new features, enhancements and bugfixes - * - * original CImageGIF and CImageIterator implementation are: - * Copyright: (c) 1995, Alejandro Aguilar Sierra - * - * 6/15/97 Randy Spann: Added GIF87a writing support - * R.Spann@ConnRiver.net - * - * DECODE.C - An LZW decoder for GIF - * Copyright (C) 1987, by Steven A. Bennett - * Copyright (C) 1994, C++ version by Alejandro Aguilar Sierra - * - * In accordance with the above, I want to credit Steve Wilhite who wrote - * the code which this is heavily inspired by... - * - * GIF and 'Graphics Interchange Format' are trademarks (tm) of - * Compuserve, Incorporated, an H&R Block Company. - * - * Release Notes: This file contains a decoder routine for GIF images - * which is similar, structurally, to the original routine by Steve Wilhite. - * It is, however, somewhat noticably faster in most cases. - * - * ========================================================== - */ - -#if !defined(__ximaGIF_h) -#define __ximaGIF_h - -#include "ximage.h" - -#if CXIMAGE_SUPPORT_GIF - -typedef short int code_int; - -/* Various error codes used by decoder */ -#define OUT_OF_MEMORY -10 -#define BAD_CODE_SIZE -20 -#define READ_ERROR -1 -#define WRITE_ERROR -2 -#define OPEN_ERROR -3 -#define CREATE_ERROR -4 -#define MAX_CODES 4095 -#define GIFBUFTAM 16383 -#define TRANSPARENCY_CODE 0xF9 - -//LZW GIF Image compression -#define MAXBITSCODES 12 -#define HSIZE 5003 /* 80% occupancy */ -#define MAXCODE(n_bits) (((code_int) 1 << (n_bits)) - 1) -#define HashTabOf(i) htab[i] -#define CodeTabOf(i) codetab[i] - - -class CImageIterator; -class DLL_EXP CxImageGIF: public CxImage -{ -#pragma pack(1) - -typedef struct tag_gifgce{ - BYTE flags; /*res:3|dispmeth:3|userinputflag:1|transpcolflag:1*/ - WORD delaytime; - BYTE transpcolindex; -} struct_gifgce; - -typedef struct tag_dscgif{ /* Logic Screen Descriptor */ - char header[6]; /* Firma and version */ - WORD scrwidth; - WORD scrheight; - char pflds; - char bcindx; - char pxasrat; -} struct_dscgif; - -typedef struct tag_image{ /* Image Descriptor */ - WORD l; - WORD t; - WORD w; - WORD h; - BYTE pf; -} struct_image; - -typedef struct tag_TabCol{ /* Tabla de colores */ - short colres; /* color resolution */ - short sogct; /* size of global color table */ - rgb_color paleta[256]; /* paleta */ -} struct_TabCol; - -typedef struct tag_RLE{ - int rl_pixel; - int rl_basecode; - int rl_count; - int rl_table_pixel; - int rl_table_max; - int just_cleared; - int out_bits; - int out_bits_init; - int out_count; - int out_bump; - int out_bump_init; - int out_clear; - int out_clear_init; - int max_ocodes; - int code_clear; - int code_eof; - unsigned int obuf; - int obits; - unsigned char oblock[256]; - int oblen; -} struct_RLE; -#pragma pack() - -public: - CxImageGIF(): CxImage(CXIMAGE_FORMAT_GIF) {m_loops=0; info.dispmeth=0; m_comment[0]='\0';} - -// bool Load(const TCHAR * imageFileName){ return CxImage::Load(imageFileName,CXIMAGE_FORMAT_GIF);} -// bool Save(const TCHAR * imageFileName){ return CxImage::Save(imageFileName,CXIMAGE_FORMAT_GIF);} - - bool Decode(CxFile * fp); - bool Decode(FILE *fp) { CxIOFile file(fp); return Decode(&file); } - -#if CXIMAGE_SUPPORT_ENCODE - bool Encode(CxFile * fp); - bool Encode(CxFile * fp, CxImage ** pImages, int pagecount, bool bLocalColorMap = false, bool bLocalDispMeth = false); - bool Encode(FILE *fp) { CxIOFile file(fp); return Encode(&file); } - bool Encode(FILE *fp, CxImage ** pImages, int pagecount, bool bLocalColorMap = false) - { CxIOFile file(fp); return Encode(&file, pImages, pagecount, bLocalColorMap); } -#endif // CXIMAGE_SUPPORT_ENCODE - - void SetLoops(int loops); - long GetLoops(); - void SetComment(const char* sz_comment_in); - void GetComment(char* sz_comment_out); - -protected: - bool DecodeExtension(CxFile *fp); - void EncodeHeader(CxFile *fp); - void EncodeLoopExtension(CxFile *fp); - void EncodeExtension(CxFile *fp); - void EncodeBody(CxFile *fp, bool bLocalColorMap = false); - void EncodeComment(CxFile *fp); - bool EncodeRGB(CxFile *fp); - void GifMix(CxImage & imgsrc2, struct_image & imgdesc); - - struct_gifgce gifgce; - - int curx, cury; - long CountDown; - unsigned long cur_accum; - int cur_bits; - int interlaced, iypos, istep, iheight, ipass; - int ibf; - int ibfmax; - BYTE buf[GIFBUFTAM + 1]; -// Implementation - int GifNextPixel (); - void Putword (int w, CxFile* fp ); - void compressNONE (int init_bits, CxFile* outfile); - void compressLZW (int init_bits, CxFile* outfile); - void output (code_int code ); - void cl_hash (long hsize); - void char_out (int c); - void flush_char (); - short init_exp(short size); - short get_next_code(CxFile*); - short decoder(CxFile*, CImageIterator* iter, short linewidth, int &bad_code_count); - int get_byte(CxFile*); - int out_line(CImageIterator* iter, unsigned char *pixels, int linelen); - int get_num_frames(CxFile *f,struct_TabCol* TabColSrc,struct_dscgif* dscgif); - long seek_next_image(CxFile* fp, long position); - - short curr_size; /* The current code size */ - short clear; /* Value for a clear code */ - short ending; /* Value for a ending code */ - short newcodes; /* First available code */ - short top_slot; /* Highest code for current size */ - short slot; /* Last read code */ - - /* The following static variables are used - * for seperating out codes */ - short navail_bytes; /* # bytes left in block */ - short nbits_left; /* # bits left in current BYTE */ - BYTE b1; /* Current BYTE */ - BYTE byte_buff[257]; /* Current block */ - BYTE *pbytes; /* Pointer to next BYTE in block */ - /* The reason we have these seperated like this instead of using - * a structure like the original Wilhite code did, is because this - * stuff generally produces significantly faster code when compiled... - * This code is full of similar speedups... (For a good book on writing - * C for speed or for space optomisation, see Efficient C by Tom Plum, - * published by Plum-Hall Associates...) - */ - BYTE stack[MAX_CODES + 1]; /* Stack for storing pixels */ - BYTE suffix[MAX_CODES + 1]; /* Suffix table */ - WORD prefix[MAX_CODES + 1]; /* Prefix linked list */ - -//LZW GIF Image compression routines - long htab [HSIZE]; - unsigned short codetab [HSIZE]; - int n_bits; /* number of bits/code */ - code_int maxcode; /* maximum code, given n_bits */ - code_int free_ent; /* first unused entry */ - int clear_flg; - int g_init_bits; - CxFile* g_outfile; - int ClearCode; - int EOFCode; - - int a_count; - char accum[256]; - - char m_comment[256]; - int m_loops; - -//RLE compression routines - void compressRLE( int init_bits, CxFile* outfile); - void rle_clear(struct_RLE* rle); - void rle_flush(struct_RLE* rle); - void rle_flush_withtable(int count, struct_RLE* rle); - void rle_flush_clearorrep(int count, struct_RLE* rle); - void rle_flush_fromclear(int count,struct_RLE* rle); - void rle_output_plain(int c,struct_RLE* rle); - void rle_reset_out_clear(struct_RLE* rle); - unsigned int rle_compute_triangle_count(unsigned int count, unsigned int nrepcodes); - unsigned int rle_isqrt(unsigned int x); - void rle_write_block(struct_RLE* rle); - void rle_block_out(unsigned char c, struct_RLE* rle); - void rle_block_flush(struct_RLE* rle); - void rle_output(int val, struct_RLE* rle); - void rle_output_flush(struct_RLE* rle); -}; - -#endif - -#endif diff --git a/src/3rdParty/CxImage/CxImage/ximahist.cpp b/src/3rdParty/CxImage/CxImage/ximahist.cpp deleted file mode 100644 index 2b47d17d5e..0000000000 --- a/src/3rdParty/CxImage/CxImage/ximahist.cpp +++ /dev/null @@ -1,627 +0,0 @@ -// xImaHist.cpp : histogram functions -/* 28/01/2004 v1.00 - www.xdp.it - * CxImage version 6.0.0 02/Feb/2008 - */ - -#include "ximage.h" - -#if CXIMAGE_SUPPORT_DSP - -//////////////////////////////////////////////////////////////////////////////// -long CxImage::Histogram(long* red, long* green, long* blue, long* gray, long colorspace) -{ - if (!pDib) return 0; - RGBQUAD color; - - if (red) memset(red,0,256*sizeof(long)); - if (green) memset(green,0,256*sizeof(long)); - if (blue) memset(blue,0,256*sizeof(long)); - if (gray) memset(gray,0,256*sizeof(long)); - - long xmin,xmax,ymin,ymax; - if (pSelection){ - xmin = info.rSelectionBox.left; xmax = info.rSelectionBox.right; - ymin = info.rSelectionBox.bottom; ymax = info.rSelectionBox.top; - } else { - xmin = ymin = 0; - xmax = head.biWidth; ymax=head.biHeight; - } - - for(long y=ymin; yn) n=red[i]; - if (green && green[i]>n) n=green[i]; - if (blue && blue[i]>n) n=blue[i]; - if (gray && gray[i]>n) n=gray[i]; - } - - return n; -} -//////////////////////////////////////////////////////////////////////////////// -/** - * HistogramStretch - * \param method: 0 = luminance (default), 1 = linked channels , 2 = independent channels. - * \param threshold: minimum percentage level in the histogram to recognize it as meaningful. Range: 0.0 to 1.0; default = 0; typical = 0.005 (0.5%); - * \return true if everything is ok - * \author [dave] and [nipper]; changes [DP] - */ -bool CxImage::HistogramStretch(long method, double threshold) -{ - if (!pDib) return false; - - double dbScaler = 50.0/head.biHeight; - long x,y; - - if ((head.biBitCount==8) && IsGrayScale()){ - - double p[256]; - memset(p, 0, 256*sizeof(double)); - for (y=0; y0 && p[maxc]<=threshold) maxc--; - - if (minc == 0 && maxc == 255) return true; - if (minc >= maxc) return true; - - // calculate LUT - BYTE lut[256]; - for (x = 0; x <256; x++){ - lut[x] = (BYTE)max(0,min(255,(255 * (x - minc) / (maxc - minc)))); - } - - for (y=0; y - double p[256]; - memset(p, 0, 256*sizeof(double)); - for (y=0; y0 && p[maxc]<=threshold) maxc--; - - if (minc == 0 && maxc == 255) return true; - if (minc >= maxc) return true; - - // calculate LUT - BYTE lut[256]; - for (x = 0; x <256; x++){ - lut[x] = (BYTE)max(0,min(255,(255 * (x - minc) / (maxc - minc)))); - } - - // normalize image - for (y=0; y - double pR[256]; - memset(pR, 0, 256*sizeof(double)); - double pG[256]; - memset(pG, 0, 256*sizeof(double)); - double pB[256]; - memset(pB, 0, 256*sizeof(double)); - for (y=0; y0 && pR[maxR]<=threshold2) maxR--; - - maxh = 0; - for (y=0; y<255; y++) if (maxh < pG[y]) maxh = pG[y]; - threshold2 = threshold*maxh; - int minG = 0; - while (minG<255 && pG[minG]<=threshold2) minG++; - int maxG = 255; - while (maxG>0 && pG[maxG]<=threshold2) maxG--; - - maxh = 0; - for (y=0; y<255; y++) if (maxh < pB[y]) maxh = pB[y]; - threshold2 = threshold*maxh; - int minB = 0; - while (minB<255 && pB[minB]<=threshold2) minB++; - int maxB = 255; - while (maxB>0 && pB[maxB]<=threshold2) maxB--; - - if (minR == 0 && maxR == 255 && minG == 0 && maxG == 255 && minB == 0 && maxB == 255) - return true; - - // calculate LUT - BYTE lutR[256]; - BYTE range = maxR - minR; - if (range != 0) { - for (x = 0; x <256; x++){ - lutR[x] = (BYTE)max(0,min(255,(255 * (x - minR) / range))); - } - } else lutR[minR] = minR; - - BYTE lutG[256]; - range = maxG - minG; - if (range != 0) { - for (x = 0; x <256; x++){ - lutG[x] = (BYTE)max(0,min(255,(255 * (x - minG) / range))); - } - } else lutG[minG] = minG; - - BYTE lutB[256]; - range = maxB - minB; - if (range != 0) { - for (x = 0; x <256; x++){ - lutB[x] = (BYTE)max(0,min(255,(255 * (x - minB) / range))); - } - } else lutB[minB] = minB; - - // normalize image - for (y=0; y - double p[256]; - memset(p, 0, 256*sizeof(double)); - for (y=0; y0 && p[maxc]<=threshold) maxc--; - - if (minc == 0 && maxc == 255) return true; - if (minc >= maxc) return true; - - // calculate LUT - BYTE lut[256]; - for (x = 0; x <256; x++){ - lut[x] = (BYTE)max(0,min(255,(255 * (x - minc) / (maxc - minc)))); - } - - for(y=0; y : dave(at)posortho(dot)com -bool CxImage::HistogramEqualize() -{ - if (!pDib) return false; - - int histogram[256]; - int map[256]; - int equalize_map[256]; - int x, y, i, j; - RGBQUAD color; - RGBQUAD yuvClr; - unsigned int YVal, high, low; - - memset( &histogram, 0, sizeof(int) * 256 ); - memset( &map, 0, sizeof(int) * 256 ); - memset( &equalize_map, 0, sizeof(int) * 256 ); - - // form histogram - for(y=0; y < head.biHeight; y++){ - info.nProgress = (long)(50*y/head.biHeight); - if (info.nEscape) break; - for(x=0; x < head.biWidth; x++){ - color = BlindGetPixelColor( x, y ); - YVal = (unsigned int)RGB2GRAY(color.rgbRed, color.rgbGreen, color.rgbBlue); - histogram[YVal]++; - } - } - - // integrate the histogram to get the equalization map. - j = 0; - for(i=0; i <= 255; i++){ - j += histogram[i]; - map[i] = j; - } - - // equalize - low = map[0]; - high = map[255]; - if (low == high) return false; - for( i = 0; i <= 255; i++ ){ - equalize_map[i] = (unsigned int)((((double)( map[i] - low ) ) * 255) / ( high - low ) ); - } - - // stretch the histogram - if(head.biClrUsed == 0){ // No Palette - for( y = 0; y < head.biHeight; y++ ){ - info.nProgress = (long)(50+50*y/head.biHeight); - if (info.nEscape) break; - for( x = 0; x < head.biWidth; x++ ){ - - color = BlindGetPixelColor( x, y ); - yuvClr = RGBtoYUV(color); - - yuvClr.rgbRed = (BYTE)equalize_map[yuvClr.rgbRed]; - - color = YUVtoRGB(yuvClr); - BlindSetPixelColor( x, y, color ); - } - } - } else { // Palette - for( i = 0; i < (int)head.biClrUsed; i++ ){ - - color = GetPaletteColor((BYTE)i); - yuvClr = RGBtoYUV(color); - - yuvClr.rgbRed = (BYTE)equalize_map[yuvClr.rgbRed]; - - color = YUVtoRGB(yuvClr); - SetPaletteColor( (BYTE)i, color ); - } - } - return true; -} -//////////////////////////////////////////////////////////////////////////////// -// HistogramNormalize function by : dave(at)posortho(dot)com -bool CxImage::HistogramNormalize() -{ - if (!pDib) return false; - - int histogram[256]; - int threshold_intensity, intense; - int x, y, i; - unsigned int normalize_map[256]; - unsigned int high, low, YVal; - - RGBQUAD color; - RGBQUAD yuvClr; - - memset( &histogram, 0, sizeof( int ) * 256 ); - memset( &normalize_map, 0, sizeof( unsigned int ) * 256 ); - - // form histogram - for(y=0; y < head.biHeight; y++){ - info.nProgress = (long)(50*y/head.biHeight); - if (info.nEscape) break; - for(x=0; x < head.biWidth; x++){ - color = BlindGetPixelColor( x, y ); - YVal = (unsigned int)RGB2GRAY(color.rgbRed, color.rgbGreen, color.rgbBlue); - histogram[YVal]++; - } - } - - // find histogram boundaries by locating the 1 percent levels - threshold_intensity = ( head.biWidth * head.biHeight) / 100; - - intense = 0; - for( low = 0; low < 255; low++ ){ - intense += histogram[low]; - if( intense > threshold_intensity ) break; - } - - intense = 0; - for( high = 255; high != 0; high--){ - intense += histogram[ high ]; - if( intense > threshold_intensity ) break; - } - - if ( low == high ){ - // Unreasonable contrast; use zero threshold to determine boundaries. - threshold_intensity = 0; - intense = 0; - for( low = 0; low < 255; low++){ - intense += histogram[low]; - if( intense > threshold_intensity ) break; - } - intense = 0; - for( high = 255; high != 0; high-- ){ - intense += histogram [high ]; - if( intense > threshold_intensity ) break; - } - } - if( low == high ) return false; // zero span bound - - // Stretch the histogram to create the normalized image mapping. - for(i = 0; i <= 255; i++){ - if ( i < (int) low ){ - normalize_map[i] = 0; - } else { - if(i > (int) high) - normalize_map[i] = 255; - else - normalize_map[i] = ( 255 - 1) * ( i - low) / ( high - low ); - } - } - - // Normalize - if( head.biClrUsed == 0 ){ - for( y = 0; y < head.biHeight; y++ ){ - info.nProgress = (long)(50+50*y/head.biHeight); - if (info.nEscape) break; - for( x = 0; x < head.biWidth; x++ ){ - - color = BlindGetPixelColor( x, y ); - yuvClr = RGBtoYUV( color ); - - yuvClr.rgbRed = (BYTE)normalize_map[yuvClr.rgbRed]; - - color = YUVtoRGB( yuvClr ); - BlindSetPixelColor( x, y, color ); - } - } - } else { - for(i = 0; i < (int)head.biClrUsed; i++){ - - color = GetPaletteColor( (BYTE)i ); - yuvClr = RGBtoYUV( color ); - - yuvClr.rgbRed = (BYTE)normalize_map[yuvClr.rgbRed]; - - color = YUVtoRGB( yuvClr ); - SetPaletteColor( (BYTE)i, color ); - } - } - return true; -} -//////////////////////////////////////////////////////////////////////////////// -// HistogramLog function by : dave(at)posortho(dot)com -bool CxImage::HistogramLog() -{ - if (!pDib) return false; - - //q(i,j) = 255/log(1 + |high|) * log(1 + |p(i,j)|); - int x, y, i; - RGBQUAD color; - RGBQUAD yuvClr; - - unsigned int YVal, high = 1; - - // Find Highest Luminance Value in the Image - if( head.biClrUsed == 0 ){ // No Palette - for(y=0; y < head.biHeight; y++){ - info.nProgress = (long)(50*y/head.biHeight); - if (info.nEscape) break; - for(x=0; x < head.biWidth; x++){ - color = BlindGetPixelColor( x, y ); - YVal = (unsigned int)RGB2GRAY(color.rgbRed, color.rgbGreen, color.rgbBlue); - if (YVal > high ) high = YVal; - } - } - } else { // Palette - for(i = 0; i < (int)head.biClrUsed; i++){ - color = GetPaletteColor((BYTE)i); - YVal = (unsigned int)RGB2GRAY(color.rgbRed, color.rgbGreen, color.rgbBlue); - if (YVal > high ) high = YVal; - } - } - - // Logarithm Operator - double k = 255.0 / ::log( 1.0 + (double)high ); - if( head.biClrUsed == 0 ){ - for( y = 0; y < head.biHeight; y++ ){ - info.nProgress = (long)(50+50*y/head.biHeight); - if (info.nEscape) break; - for( x = 0; x < head.biWidth; x++ ){ - - color = BlindGetPixelColor( x, y ); - yuvClr = RGBtoYUV( color ); - - yuvClr.rgbRed = (BYTE)(k * ::log( 1.0 + (double)yuvClr.rgbRed ) ); - - color = YUVtoRGB( yuvClr ); - BlindSetPixelColor( x, y, color ); - } - } - } else { - for(i = 0; i < (int)head.biClrUsed; i++){ - - color = GetPaletteColor( (BYTE)i ); - yuvClr = RGBtoYUV( color ); - - yuvClr.rgbRed = (BYTE)(k * ::log( 1.0 + (double)yuvClr.rgbRed ) ); - - color = YUVtoRGB( yuvClr ); - SetPaletteColor( (BYTE)i, color ); - } - } - - return true; -} - -//////////////////////////////////////////////////////////////////////////////// -// HistogramRoot function by : dave(at)posortho(dot)com -bool CxImage::HistogramRoot() -{ - if (!pDib) return false; - //q(i,j) = sqrt(|p(i,j)|); - - int x, y, i; - RGBQUAD color; - RGBQUAD yuvClr; - double dtmp; - unsigned int YVal, high = 1; - - // Find Highest Luminance Value in the Image - if( head.biClrUsed == 0 ){ // No Palette - for(y=0; y < head.biHeight; y++){ - info.nProgress = (long)(50*y/head.biHeight); - if (info.nEscape) break; - for(x=0; x < head.biWidth; x++){ - color = BlindGetPixelColor( x, y ); - YVal = (unsigned int)RGB2GRAY(color.rgbRed, color.rgbGreen, color.rgbBlue); - if (YVal > high ) high = YVal; - } - } - } else { // Palette - for(i = 0; i < (int)head.biClrUsed; i++){ - color = GetPaletteColor((BYTE)i); - YVal = (unsigned int)RGB2GRAY(color.rgbRed, color.rgbGreen, color.rgbBlue); - if (YVal > high ) high = YVal; - } - } - - // Root Operator - double k = 128.0 / ::log( 1.0 + (double)high ); - if( head.biClrUsed == 0 ){ - for( y = 0; y < head.biHeight; y++ ){ - info.nProgress = (long)(50+50*y/head.biHeight); - if (info.nEscape) break; - for( x = 0; x < head.biWidth; x++ ){ - - color = BlindGetPixelColor( x, y ); - yuvClr = RGBtoYUV( color ); - - dtmp = k * ::sqrt( (double)yuvClr.rgbRed ); - if ( dtmp > 255.0 ) dtmp = 255.0; - if ( dtmp < 0 ) dtmp = 0; - yuvClr.rgbRed = (BYTE)dtmp; - - color = YUVtoRGB( yuvClr ); - BlindSetPixelColor( x, y, color ); - } - } - } else { - for(i = 0; i < (int)head.biClrUsed; i++){ - - color = GetPaletteColor( (BYTE)i ); - yuvClr = RGBtoYUV( color ); - - dtmp = k * ::sqrt( (double)yuvClr.rgbRed ); - if ( dtmp > 255.0 ) dtmp = 255.0; - if ( dtmp < 0 ) dtmp = 0; - yuvClr.rgbRed = (BYTE)dtmp; - - color = YUVtoRGB( yuvClr ); - SetPaletteColor( (BYTE)i, color ); - } - } - - return true; -} -//////////////////////////////////////////////////////////////////////////////// -#endif diff --git a/src/3rdParty/CxImage/CxImage/ximaico.cpp b/src/3rdParty/CxImage/CxImage/ximaico.cpp deleted file mode 100644 index 0cb3b060f2..0000000000 --- a/src/3rdParty/CxImage/CxImage/ximaico.cpp +++ /dev/null @@ -1,472 +0,0 @@ -/* - * File: ximaico.cpp - * Purpose: Platform Independent ICON Image Class Loader and Writer (MS version) - * 07/Aug/2001 Davide Pizzolato - www.xdp.it - * CxImage version 6.0.0 02/Feb/2008 - */ - -#include "ximaico.h" - -#if CXIMAGE_SUPPORT_ICO - -//////////////////////////////////////////////////////////////////////////////// -#if CXIMAGE_SUPPORT_DECODE -//////////////////////////////////////////////////////////////////////////////// -bool CxImageICO::Decode(CxFile *hFile) -{ - if (hFile==NULL) return false; - - DWORD off = hFile->Tell(); // - int page=info.nFrame; //internal icon structure indexes - - // read the first part of the header - ICONHEADER icon_header; - hFile->Read(&icon_header,sizeof(ICONHEADER),1); - - icon_header.idType = ntohs(icon_header.idType); - icon_header.idCount = ntohs(icon_header.idCount); - - // check if it's an icon or a cursor - if ((icon_header.idReserved == 0) && ((icon_header.idType == 1)||(icon_header.idType == 2))) { - - info.nNumFrames = icon_header.idCount; - - // load the icon descriptions - ICONDIRENTRY *icon_list = (ICONDIRENTRY *)malloc(icon_header.idCount * sizeof(ICONDIRENTRY)); - int c; - for (c = 0; c < icon_header.idCount; c++) { - hFile->Read(icon_list + c, sizeof(ICONDIRENTRY), 1); - - icon_list[c].wPlanes = ntohs(icon_list[c].wPlanes); - icon_list[c].wBitCount = ntohs(icon_list[c].wBitCount); - icon_list[c].dwBytesInRes = ntohl(icon_list[c].dwBytesInRes); - icon_list[c].dwImageOffset = ntohl(icon_list[c].dwImageOffset); - } - - if ((page>=0)&&(pageSeek(off + icon_list[page].dwImageOffset, SEEK_SET); - CxImage png; - png.SetEscape(-1); - if (png.Decode(hFile,CXIMAGE_FORMAT_PNG)){ - Transfer(png); - info.nNumFrames = icon_header.idCount; - } - } -#endif //CXIMAGE_SUPPORT_PNG - free(icon_list); - info.dwType = CXIMAGE_FORMAT_ICO; - return true; - } - - // get the bit count for the colors in the icon - BITMAPINFOHEADER bih; - hFile->Seek(off + icon_list[page].dwImageOffset, SEEK_SET); - - if (icon_list[page].bWidth==0 && icon_list[page].bHeight==0) - { // Vista icon support -#if CXIMAGE_SUPPORT_PNG - CxImage png; - if (png.Decode(hFile,CXIMAGE_FORMAT_PNG)){ - Transfer(png); - info.nNumFrames = icon_header.idCount; - } - SetType(CXIMAGE_FORMAT_ICO); -#endif //CXIMAGE_SUPPORT_PNG - } - else - { // standard icon - hFile->Read(&bih,sizeof(BITMAPINFOHEADER),1); - - bihtoh(&bih); - - c = bih.biBitCount; - - // allocate memory for one icon - Create(icon_list[page].bWidth,icon_list[page].bHeight, c, CXIMAGE_FORMAT_ICO); //image creation - - // read the palette - RGBQUAD pal[256]; - if (bih.biClrUsed) - hFile->Read(pal,bih.biClrUsed*sizeof(RGBQUAD), 1); - else - hFile->Read(pal,head.biClrUsed*sizeof(RGBQUAD), 1); - - SetPalette(pal,head.biClrUsed); //palette assign - - //read the icon - if (c<=24){ - hFile->Read(info.pImage, head.biSizeImage, 1); - } else { // 32 bit icon - BYTE* buf=(BYTE*)malloc(4*head.biHeight*head.biWidth); - BYTE* src = buf; - hFile->Read(buf, 4*head.biHeight*head.biWidth, 1); -#if CXIMAGE_SUPPORT_ALPHA - if (!AlphaIsValid()) AlphaCreate(); -#endif //CXIMAGE_SUPPORT_ALPHA - for (long y = 0; y < head.biHeight; y++) { - BYTE* dst = GetBits(y); - for(long x=0;xRead(mask, masksize, 1)){ - - bool bGoodMask=false; - for (int im=0;im>3)]>>(7-x%8))&0x01)){ - AlphaSet(x,y,0); - bNeedAlpha=true; - } - } - } - if (!bNeedAlpha) AlphaDelete(); -#endif //CXIMAGE_SUPPORT_ALPHA - - //check if there is only one transparent color - RGBQUAD cc,ct; - long* pcc = (long*)&cc; - long* pct = (long*)&ct; - int nTransColors=0; - int nTransIndex=0; - for (y = 0; y < head.biHeight; y++){ - for (x = 0; x < head.biWidth; x++){ - if (((mask[y*maskwdt+(x>>3)] >> (7-x%8)) & 0x01)){ - cc = GetPixelColor(x,y,false); - if (nTransColors==0){ - nTransIndex = GetPixelIndex(x,y); - nTransColors++; - ct = cc; - } else { - if (*pct!=*pcc){ - nTransColors++; - } - } - } - } - } - if (nTransColors==1){ - SetTransColor(ct); - SetTransIndex(nTransIndex); -#if CXIMAGE_SUPPORT_ALPHA - AlphaDelete(); //because we have a unique transparent color in the image -#endif //CXIMAGE_SUPPORT_ALPHA - } - - // - Transparency support w/o Alpha support - if (c <= 8){ // only for icons with less than 256 colors (XP icons need alpha). - - // find a color index, which is not used in the image - // it is almost sure to find one, bcs. nobody uses all possible colors for an icon - - BYTE colorsUsed[256]; - memset(colorsUsed, 0, sizeof(colorsUsed)); - - for (y = 0; y < head.biHeight; y++){ - for (x = 0; x < head.biWidth; x++){ - colorsUsed[BlindGetPixelIndex(x,y)] = 1; - } - } - - int iTransIdx = -1; - for (x = (int)(head.biClrUsed-1); x>=0 ; x--){ - if (colorsUsed[x] == 0){ - iTransIdx = x; // this one is not in use. we may use it as transparent color - break; - } - } - - // Go thru image and set unused color as transparent index if needed - if (iTransIdx >= 0){ - bool bNeedTrans = false; - for (y = 0; y < head.biHeight; y++){ - for (x = 0; x < head.biWidth; x++){ - // AND mask (Each Byte represents 8 Pixels) - if (((mask[y*maskwdt+(x>>3)] >> (7-x%8)) & 0x01)){ - // AND mask is set (!=0). This is a transparent part - SetPixelIndex(x, y, (BYTE)iTransIdx); - bNeedTrans = true; - } - } - } - // set transparent index if needed - if (bNeedTrans) SetTransIndex(iTransIdx); -#if CXIMAGE_SUPPORT_ALPHA - AlphaDelete(); //because we have a transparent color in the palette -#endif //CXIMAGE_SUPPORT_ALPHA - } - } - } else { - SetTransIndex(0); //empty mask, set black as transparent color - Negative(); - } - } - free(mask); - } - free(icon_list); - // icon has been loaded successfully! - return true; - } - free(icon_list); - } - return false; -} -//////////////////////////////////////////////////////////////////////////////// -#endif //CXIMAGE_SUPPORT_DECODE -//////////////////////////////////////////////////////////////////////////////// -#if CXIMAGE_SUPPORT_ENCODE -//////////////////////////////////////////////////////////////////////////////// -// Thanks to -bool CxImageICO::Encode(CxFile * hFile, CxImage ** pImages, int nPageCount) -{ - cx_try - { - if (hFile==NULL) cx_throw("invalid file pointer"); - if (pImages==NULL || nPageCount<=0) cx_throw("multipage ICO, no images!"); - - int i; - for (i=0; iIsValid())) - cx_throw("Empty image"); - } - - CxImageICO ghost; - for (i=0; i255)||(head.biHeight>255)){ - strcpy(info.szLastError,"Can't save this image as icon"); - return false; - } -#endif - - //prepare the palette struct - RGBQUAD* pal=GetPalette(); - if (head.biBitCount<=8 && pal==NULL) return false; - - int maskwdt=((head.biWidth+31)/32)*4; //mask line width - int masksize=head.biHeight * maskwdt; //size of mask - int bitcount=head.biBitCount; - int imagesize=head.biSizeImage; -#if CXIMAGE_SUPPORT_ALPHA - if (AlphaIsValid() && head.biClrUsed==0){ - bitcount=32; - imagesize=4*head.biHeight*head.biWidth; - } -#endif - - //fill the icon headers - int nPages = nPageCount; - if (nPages<1) nPages = 1; - - ICONHEADER icon_header={0,1,nPages}; - - if (!bAppend) - m_dwImageOffset = sizeof(ICONHEADER) + nPages * sizeof(ICONDIRENTRY); - - DWORD dwBytesInRes = sizeof(BITMAPINFOHEADER)+head.biClrUsed*sizeof(RGBQUAD)+imagesize+masksize; - - ICONDIRENTRY icon_list={ - (BYTE)head.biWidth, - (BYTE)head.biHeight, - (BYTE)head.biClrUsed, - 0, 0, - (WORD)bitcount, - dwBytesInRes, - m_dwImageOffset - }; - - BITMAPINFOHEADER bi={ - sizeof(BITMAPINFOHEADER), - head.biWidth, - 2*head.biHeight, - 1, - (WORD)bitcount, - 0, imagesize, - 0, 0, 0, 0 - }; - -#if CXIMAGE_SUPPORT_PNG // Vista icon support - CxImage png(*this); - CxMemFile memfile; - if (head.biWidth>255 || head.biHeight>255){ - icon_list.bWidth = icon_list.bHeight = 0; - memfile.Open(); - png.Encode(&memfile,CXIMAGE_FORMAT_PNG); - icon_list.dwBytesInRes = dwBytesInRes = memfile.Size(); - } -#endif //CXIMAGE_SUPPORT_PNG - - if (!bAppend){ - icon_header.idType = ntohs(icon_header.idType); - icon_header.idCount = ntohs(icon_header.idCount); - hFile->Write(&icon_header,sizeof(ICONHEADER),1); //write the file header - icon_header.idType = ntohs(icon_header.idType); - icon_header.idCount = ntohs(icon_header.idCount); - } - - - if ((bAppend && nPageCount==info.nNumFrames) || (!bAppend && nPageCount==0)){ - icon_list.wPlanes = ntohs(icon_list.wPlanes); - icon_list.wBitCount = ntohs(icon_list.wBitCount); - icon_list.dwBytesInRes = ntohl(icon_list.dwBytesInRes); - icon_list.dwImageOffset = ntohl(icon_list.dwImageOffset); - hFile->Write(&icon_list,sizeof(ICONDIRENTRY),1); //write the image entry - icon_list.wPlanes = ntohs(icon_list.wPlanes); - icon_list.wBitCount = ntohs(icon_list.wBitCount); - icon_list.dwBytesInRes = ntohl(icon_list.dwBytesInRes); - icon_list.dwImageOffset = ntohl(icon_list.dwImageOffset); - - m_dwImageOffset += dwBytesInRes; //update offset for next header - } - - if ((bAppend && nPageCountWrite(memfile.GetBuffer(false),dwBytesInRes,1); - } else -#endif //CXIMAGE_SUPPORT_PNG - { // standard icon - bihtoh(&bi); - hFile->Write(&bi,sizeof(BITMAPINFOHEADER),1); //write the image header - bihtoh(&bi); - - bool bTransparent = info.nBkgndIndex >= 0; - RGBQUAD ct = GetTransColor(); - if (pal){ - if (bTransparent) SetPaletteColor((BYTE)info.nBkgndIndex,0,0,0,0); - hFile->Write(pal,head.biClrUsed*sizeof(RGBQUAD),1); //write palette - if (bTransparent) SetPaletteColor((BYTE)info.nBkgndIndex,ct); - } - -#if CXIMAGE_SUPPORT_ALPHA - if (AlphaIsValid() && head.biClrUsed==0){ - BYTE* buf=(BYTE*)malloc(imagesize); - BYTE* dst = buf; - for (long y = 0; y < head.biHeight; y++) { - BYTE* src = GetBits(y); - for(long x=0;xWrite(buf,imagesize, 1); - free(buf); - } else { - hFile->Write(info.pImage,imagesize,1); //write image - } -#else - hFile->Write(info.pImage,imagesize,1); //write image -#endif - - //save transparency mask - BYTE* mask=(BYTE*)calloc(masksize,1); //create empty AND/XOR masks - if (!mask) return false; - - //prepare the variables to build the mask - BYTE* iDst; - int pos,i; - RGBQUAD c={0,0,0,0}; - long* pc = (long*)&c; - long* pct= (long*)&ct; -#if CXIMAGE_SUPPORT_ALPHA - bool bAlphaPaletteIsValid = AlphaPaletteIsValid(); - bool bAlphaIsValid = AlphaIsValid(); -#endif - //build the mask - for (int y = 0; y < head.biHeight; y++) { - for (int x = 0; x < head.biWidth; x++) { - i=0; -#if CXIMAGE_SUPPORT_ALPHA - if (bAlphaIsValid && AlphaGet(x,y)==0) i=1; - if (bAlphaPaletteIsValid && BlindGetPixelColor(x,y).rgbReserved==0) i=1; -#endif - c=GetPixelColor(x,y,false); - if (bTransparent && *pc==*pct) i=1; - iDst = mask + y*maskwdt + (x>>3); - pos = 7-x%8; - *iDst &= ~(0x01<Write(mask,masksize,1); - free(mask); - } - } - - return true; -} -//////////////////////////////////////////////////////////////////////////////// -#endif // CXIMAGE_SUPPORT_ENCODE -//////////////////////////////////////////////////////////////////////////////// -#endif // CXIMAGE_SUPPORT_ICO - diff --git a/src/3rdParty/CxImage/CxImage/ximaico.h b/src/3rdParty/CxImage/CxImage/ximaico.h deleted file mode 100644 index 837939a7dc..0000000000 --- a/src/3rdParty/CxImage/CxImage/ximaico.h +++ /dev/null @@ -1,58 +0,0 @@ -/* - * File: ximaico.h - * Purpose: ICON Image Class Loader and Writer - */ -/* ========================================================== - * CxImageICO (c) 07/Aug/2001 Davide Pizzolato - www.xdp.it - * For conditions of distribution and use, see copyright notice in ximage.h - * ========================================================== - */ -#if !defined(__ximaICO_h) -#define __ximaICO_h - -#include "ximage.h" - -#if CXIMAGE_SUPPORT_ICO - -class CxImageICO: public CxImage -{ -typedef struct tagIconDirectoryEntry { - BYTE bWidth; - BYTE bHeight; - BYTE bColorCount; - BYTE bReserved; - WORD wPlanes; - WORD wBitCount; - DWORD dwBytesInRes; - DWORD dwImageOffset; -} ICONDIRENTRY; - -typedef struct tagIconDir { - WORD idReserved; - WORD idType; - WORD idCount; -} ICONHEADER; - -public: - CxImageICO(): CxImage(CXIMAGE_FORMAT_ICO) {m_dwImageOffset=0;} - -// bool Load(const TCHAR * imageFileName){ return CxImage::Load(imageFileName,CXIMAGE_FORMAT_ICO);} -// bool Save(const TCHAR * imageFileName){ return CxImage::Save(imageFileName,CXIMAGE_FORMAT_ICO);} - bool Decode(CxFile * hFile); - bool Decode(FILE *hFile) { CxIOFile file(hFile); return Decode(&file); } - -#if CXIMAGE_SUPPORT_ENCODE - bool Encode(CxFile * hFile, bool bAppend=false, int nPageCount=0); - bool Encode(CxFile * hFile, CxImage ** pImages, int nPageCount); - bool Encode(FILE *hFile, bool bAppend=false, int nPageCount=0) - { CxIOFile file(hFile); return Encode(&file,bAppend,nPageCount); } - bool Encode(FILE *hFile, CxImage ** pImages, int nPageCount) - { CxIOFile file(hFile); return Encode(&file, pImages, nPageCount); } -#endif // CXIMAGE_SUPPORT_ENCODE -protected: - DWORD m_dwImageOffset; -}; - -#endif - -#endif diff --git a/src/3rdParty/CxImage/CxImage/ximainfo.cpp b/src/3rdParty/CxImage/CxImage/ximainfo.cpp deleted file mode 100644 index 4ee9f13775..0000000000 --- a/src/3rdParty/CxImage/CxImage/ximainfo.cpp +++ /dev/null @@ -1,917 +0,0 @@ -// ximainfo.cpp : main attributes -/* 03/10/2004 v1.00 - Davide Pizzolato - www.xdp.it - * CxImage version 6.0.0 02/Feb/2008 - */ - -#include "ximage.h" - -//////////////////////////////////////////////////////////////////////////////// -/** - * \return the color used for transparency, and/or for background color - */ -RGBQUAD CxImage::GetTransColor() -{ - if (head.biBitCount<24 && info.nBkgndIndex>=0) return GetPaletteColor((BYTE)info.nBkgndIndex); - return info.nBkgndColor; -} -//////////////////////////////////////////////////////////////////////////////// -/** - * Gets the index used for transparency. Returns -1 for no transparancy. - */ -long CxImage::GetTransIndex() const -{ - return info.nBkgndIndex; -} -//////////////////////////////////////////////////////////////////////////////// -/** - * Sets the index used for transparency with 1, 4 and 8 bpp images. Set to -1 to remove the effect. - */ -void CxImage::SetTransIndex(long idx) -{ - if (idx<(long)head.biClrUsed) - info.nBkgndIndex = idx; - else - info.nBkgndIndex = 0; -} -//////////////////////////////////////////////////////////////////////////////// -/** - * Sets the color used for transparency with 24 bpp images. - * You must call SetTransIndex(0) to enable the effect, SetTransIndex(-1) to disable it. - */ -void CxImage::SetTransColor(RGBQUAD rgb) -{ - rgb.rgbReserved=0; - info.nBkgndColor = rgb; -} -//////////////////////////////////////////////////////////////////////////////// -bool CxImage::IsTransparent() const -{ - return info.nBkgndIndex>=0; // -} -//////////////////////////////////////////////////////////////////////////////// -/** - * Returns true if the image has 256 colors or less. - */ -bool CxImage::IsIndexed() const -{ - return head.biClrUsed!=0; -} -//////////////////////////////////////////////////////////////////////////////// -/** - * \return 1 = indexed, 2 = RGB, 4 = RGBA - */ -BYTE CxImage::GetColorType() -{ - BYTE b = (BYTE)((head.biBitCount>8) ? 2 /*COLORTYPE_COLOR*/ : 1 /*COLORTYPE_PALETTE*/); -#if CXIMAGE_SUPPORT_ALPHA - if (AlphaIsValid()) b = 4 /*COLORTYPE_ALPHA*/; -#endif //CXIMAGE_SUPPORT_ALPHA - return b; -} -//////////////////////////////////////////////////////////////////////////////// -/** - * \return Resolution for TIFF, JPEG, PNG and BMP formats. - */ -long CxImage::GetXDPI() const -{ - return info.xDPI; -} -//////////////////////////////////////////////////////////////////////////////// -/** - * \return Resolution for TIFF, JPEG, PNG and BMP formats. - */ -long CxImage::GetYDPI() const -{ - return info.yDPI; -} -//////////////////////////////////////////////////////////////////////////////// -/** - * Set resolution for TIFF, JPEG, PNG and BMP formats. - */ -void CxImage::SetXDPI(long dpi) -{ - if (dpi<=0) dpi = CXIMAGE_DEFAULT_DPI; - info.xDPI = dpi; - head.biXPelsPerMeter = (long) floor(dpi * 10000.0 / 254.0 + 0.5); - if (pDib) ((BITMAPINFOHEADER*)pDib)->biXPelsPerMeter = head.biXPelsPerMeter; -} -//////////////////////////////////////////////////////////////////////////////// -/** - * Set resolution for TIFF, JPEG, PNG and BMP formats. - */ -void CxImage::SetYDPI(long dpi) -{ - if (dpi<=0) dpi = CXIMAGE_DEFAULT_DPI; - info.yDPI = dpi; - head.biYPelsPerMeter = (long) floor(dpi * 10000.0 / 254.0 + 0.5); - if (pDib) ((BITMAPINFOHEADER*)pDib)->biYPelsPerMeter = head.biYPelsPerMeter; -} -//////////////////////////////////////////////////////////////////////////////// -/** - * \sa SetFlags - */ -DWORD CxImage::GetFlags() const -{ - return info.dwFlags; -} -//////////////////////////////////////////////////////////////////////////////// -/** - * Image flags, for future use - * \param flags - * - 0x??00000 = reserved for 16 bit, CMYK, multilayer - * - 0x00??0000 = blend modes - * - 0x0000???? = layer id or user flags - * - * \param bLockReservedFlags protects the "reserved" and "blend modes" flags - */ -void CxImage::SetFlags(DWORD flags, bool bLockReservedFlags) -{ - if (bLockReservedFlags) info.dwFlags = flags & 0x0000ffff; - else info.dwFlags = flags; -} -//////////////////////////////////////////////////////////////////////////////// -/** - * \sa SetCodecOption - */ -DWORD CxImage::GetCodecOption(DWORD imagetype) -{ - imagetype = GetTypeIndexFromId(imagetype); - if (imagetype==0){ - imagetype = GetTypeIndexFromId(GetType()); - } - return info.dwCodecOpt[imagetype]; -} -//////////////////////////////////////////////////////////////////////////////// -/** - * Encode option for GIF, TIF and JPG. - * - GIF : 0 = LZW (default), 1 = none, 2 = RLE. - * - TIF : 0 = automatic (default), or a valid compression code as defined in "tiff.h" (COMPRESSION_NONE = 1, COMPRESSION_CCITTRLE = 2, ...) - * - JPG : valid values stored in enum CODEC_OPTION ( ENCODE_BASELINE = 0x01, ENCODE_PROGRESSIVE = 0x10, ...) - * - RAW : valid values stored in enum CODEC_OPTION ( DECODE_QUALITY_LIN = 0x00, DECODE_QUALITY_VNG = 0x01, ...) - * - * \return true if everything is ok - */ -bool CxImage::SetCodecOption(DWORD opt, DWORD imagetype) -{ - imagetype = GetTypeIndexFromId(imagetype); - if (imagetype==0){ - imagetype = GetTypeIndexFromId(GetType()); - } - info.dwCodecOpt[imagetype] = opt; - return true; -} -//////////////////////////////////////////////////////////////////////////////// -/** - * \return internal hDib object.. - */ -void* CxImage::GetDIB() const -{ - return pDib; -} -//////////////////////////////////////////////////////////////////////////////// -DWORD CxImage::GetHeight() const -{ - return head.biHeight; -} -//////////////////////////////////////////////////////////////////////////////// -DWORD CxImage::GetWidth() const -{ - return head.biWidth; -} -//////////////////////////////////////////////////////////////////////////////// -/** - * \return DWORD aligned width of the image. - */ -DWORD CxImage::GetEffWidth() const -{ - return info.dwEffWidth; -} -//////////////////////////////////////////////////////////////////////////////// -/** - * \return 2, 16, 256; 0 for RGB images. - */ -DWORD CxImage::GetNumColors() const -{ - return head.biClrUsed; -} -//////////////////////////////////////////////////////////////////////////////// -/** - * \return: 1, 4, 8, 24. - */ -WORD CxImage::GetBpp() const -{ - return head.biBitCount; -} -//////////////////////////////////////////////////////////////////////////////// -/** - * \return original image format - * \sa ENUM_CXIMAGE_FORMATS. - */ -DWORD CxImage::GetType() const -{ - return info.dwType; -} -//////////////////////////////////////////////////////////////////////////////// -/** - * change image format identifier - * \sa ENUM_CXIMAGE_FORMATS. - */ -bool CxImage::SetType(DWORD type) -{ - switch (type){ -#if CXIMAGE_SUPPORT_BMP - case CXIMAGE_FORMAT_BMP: -#endif -#if CXIMAGE_SUPPORT_GIF - case CXIMAGE_FORMAT_GIF: -#endif -#if CXIMAGE_SUPPORT_JPG - case CXIMAGE_FORMAT_JPG: -#endif -#if CXIMAGE_SUPPORT_PNG - case CXIMAGE_FORMAT_PNG: -#endif -#if CXIMAGE_SUPPORT_MNG - case CXIMAGE_FORMAT_MNG: -#endif -#if CXIMAGE_SUPPORT_ICO - case CXIMAGE_FORMAT_ICO: -#endif -#if CXIMAGE_SUPPORT_TIF - case CXIMAGE_FORMAT_TIF: -#endif -#if CXIMAGE_SUPPORT_TGA - case CXIMAGE_FORMAT_TGA: -#endif -#if CXIMAGE_SUPPORT_PCX - case CXIMAGE_FORMAT_PCX: -#endif -#if CXIMAGE_SUPPORT_WBMP - case CXIMAGE_FORMAT_WBMP: -#endif -#if CXIMAGE_SUPPORT_WMF - case CXIMAGE_FORMAT_WMF: -#endif -#if CXIMAGE_SUPPORT_JBG - case CXIMAGE_FORMAT_JBG: -#endif -#if CXIMAGE_SUPPORT_JP2 - case CXIMAGE_FORMAT_JP2: -#endif -#if CXIMAGE_SUPPORT_JPC - case CXIMAGE_FORMAT_JPC: -#endif -#if CXIMAGE_SUPPORT_PGX - case CXIMAGE_FORMAT_PGX: -#endif -#if CXIMAGE_SUPPORT_PNM - case CXIMAGE_FORMAT_PNM: -#endif -#if CXIMAGE_SUPPORT_RAS - case CXIMAGE_FORMAT_RAS: -#endif -#if CXIMAGE_SUPPORT_SKA - case CXIMAGE_FORMAT_SKA: -#endif -#if CXIMAGE_SUPPORT_RAW - case CXIMAGE_FORMAT_RAW: -#endif - info.dwType = type; - return true; - } - info.dwType = CXIMAGE_FORMAT_UNKNOWN; - return false; -} -//////////////////////////////////////////////////////////////////////////////// -DWORD CxImage::GetNumTypes() -{ - return CMAX_IMAGE_FORMATS-1; -} -//////////////////////////////////////////////////////////////////////////////// -DWORD CxImage::GetTypeIdFromName(const TCHAR* ext) -{ -#if CXIMAGE_SUPPORT_BMP - if (_tcsnicmp(ext,_T("bmp"),3)==0 ) return CXIMAGE_FORMAT_BMP; -#endif -#if CXIMAGE_SUPPORT_JPG - if (_tcsnicmp(ext,_T("jpg"),3)==0 || - _tcsnicmp(ext,_T("jpe"),3)==0 || - _tcsnicmp(ext,_T("jfi"),3)==0 ) return CXIMAGE_FORMAT_JPG; -#endif -#if CXIMAGE_SUPPORT_GIF - if (_tcsnicmp(ext,_T("gif"),3)==0 ) return CXIMAGE_FORMAT_GIF; -#endif -#if CXIMAGE_SUPPORT_PNG - if (_tcsnicmp(ext,_T("png"),3)==0 ) return CXIMAGE_FORMAT_PNG; -#endif -#if CXIMAGE_SUPPORT_ICO - if (_tcsnicmp(ext,_T("ico"),3)==0 || - _tcsnicmp(ext,_T("cur"),3)==0 ) return CXIMAGE_FORMAT_ICO; -#endif -#if CXIMAGE_SUPPORT_TIF - if (_tcsnicmp(ext,_T("tif"),3)==0 ) return CXIMAGE_FORMAT_TIF; -#endif -#if CXIMAGE_SUPPORT_TGA - if (_tcsnicmp(ext,_T("tga"),3)==0 ) return CXIMAGE_FORMAT_TGA; -#endif -#if CXIMAGE_SUPPORT_PCX - if (_tcsnicmp(ext,_T("pcx"),3)==0 ) return CXIMAGE_FORMAT_PCX; -#endif -#if CXIMAGE_SUPPORT_WBMP - if (_tcsnicmp(ext,_T("wbm"),3)==0 ) return CXIMAGE_FORMAT_WBMP; -#endif -#if CXIMAGE_SUPPORT_WMF - if (_tcsnicmp(ext,_T("wmf"),3)==0 || - _tcsnicmp(ext,_T("emf"),3)==0 ) return CXIMAGE_FORMAT_WMF; -#endif -#if CXIMAGE_SUPPORT_JP2 - if (_tcsnicmp(ext,_T("jp2"),3)==0 || - _tcsnicmp(ext,_T("j2k"),3)==0 ) return CXIMAGE_FORMAT_JP2; -#endif -#if CXIMAGE_SUPPORT_JPC - if (_tcsnicmp(ext,_T("jpc"),3)==0 || - _tcsnicmp(ext,_T("j2c"),3)==0 ) return CXIMAGE_FORMAT_JPC; -#endif -#if CXIMAGE_SUPPORT_PGX - if (_tcsnicmp(ext,_T("pgx"),3)==0 ) return CXIMAGE_FORMAT_PGX; -#endif -#if CXIMAGE_SUPPORT_RAS - if (_tcsnicmp(ext,_T("ras"),3)==0 ) return CXIMAGE_FORMAT_RAS; -#endif -#if CXIMAGE_SUPPORT_PNM - if (_tcsnicmp(ext,_T("pnm"),3)==0 || - _tcsnicmp(ext,_T("pgm"),3)==0 || - _tcsnicmp(ext,_T("ppm"),3)==0 ) return CXIMAGE_FORMAT_PNM; -#endif -#if CXIMAGE_SUPPORT_JBG - if (_tcsnicmp(ext,_T("jbg"),3)==0 ) return CXIMAGE_FORMAT_JBG; -#endif -#if CXIMAGE_SUPPORT_MNG - if (_tcsnicmp(ext,_T("mng"),3)==0 || - _tcsnicmp(ext,_T("jng"),3)==0 ) return CXIMAGE_FORMAT_MNG; -#endif -#if CXIMAGE_SUPPORT_SKA - if (_tcsnicmp(ext,_T("ska"),3)==0 ) return CXIMAGE_FORMAT_SKA; -#endif -#if CXIMAGE_SUPPORT_RAW - if (_tcsnicmp(ext,_T("nef"),3)==0 || - _tcsnicmp(ext,_T("crw"),3)==0 || - _tcsnicmp(ext,_T("cr2"),3)==0 || - _tcsnicmp(ext,_T("dng"),3)==0 || - _tcsnicmp(ext,_T("arw"),3)==0 || - _tcsnicmp(ext,_T("erf"),3)==0 || - _tcsnicmp(ext,_T("3fr"),3)==0 || - _tcsnicmp(ext,_T("dcr"),3)==0 || - _tcsnicmp(ext,_T("raw"),3)==0 || - _tcsnicmp(ext,_T("x3f"),3)==0 || - _tcsnicmp(ext,_T("mef"),3)==0 || - _tcsnicmp(ext,_T("raf"),3)==0 || - _tcsnicmp(ext,_T("mrw"),3)==0 || - _tcsnicmp(ext,_T("pef"),3)==0 || - _tcsnicmp(ext,_T("sr2"),3)==0 || - _tcsnicmp(ext,_T("orf"),3)==0 ) return CXIMAGE_FORMAT_RAW; -#endif - - return CXIMAGE_FORMAT_UNKNOWN; -} -//////////////////////////////////////////////////////////////////////////////// -DWORD CxImage::GetTypeIdFromIndex(const DWORD index) -{ - DWORD n; - - n=0; if (index == n) return CXIMAGE_FORMAT_UNKNOWN; -#if CXIMAGE_SUPPORT_BMP - n++; if (index == n) return CXIMAGE_FORMAT_BMP; -#endif -#if CXIMAGE_SUPPORT_GIF - n++; if (index == n) return CXIMAGE_FORMAT_GIF; -#endif -#if CXIMAGE_SUPPORT_JPG - n++; if (index == n) return CXIMAGE_FORMAT_JPG; -#endif -#if CXIMAGE_SUPPORT_PNG - n++; if (index == n) return CXIMAGE_FORMAT_PNG; -#endif -#if CXIMAGE_SUPPORT_ICO - n++; if (index == n) return CXIMAGE_FORMAT_ICO; -#endif -#if CXIMAGE_SUPPORT_TIF - n++; if (index == n) return CXIMAGE_FORMAT_TIF; -#endif -#if CXIMAGE_SUPPORT_TGA - n++; if (index == n) return CXIMAGE_FORMAT_TGA; -#endif -#if CXIMAGE_SUPPORT_PCX - n++; if (index == n) return CXIMAGE_FORMAT_PCX; -#endif -#if CXIMAGE_SUPPORT_WBMP - n++; if (index == n) return CXIMAGE_FORMAT_WBMP; -#endif -#if CXIMAGE_SUPPORT_WMF - n++; if (index == n) return CXIMAGE_FORMAT_WMF; -#endif -#if CXIMAGE_SUPPORT_JP2 - n++; if (index == n) return CXIMAGE_FORMAT_JP2; -#endif -#if CXIMAGE_SUPPORT_JPC - n++; if (index == n) return CXIMAGE_FORMAT_JPC; -#endif -#if CXIMAGE_SUPPORT_PGX - n++; if (index == n) return CXIMAGE_FORMAT_PGX; -#endif -#if CXIMAGE_SUPPORT_PNM - n++; if (index == n) return CXIMAGE_FORMAT_PNM; -#endif -#if CXIMAGE_SUPPORT_RAS - n++; if (index == n) return CXIMAGE_FORMAT_RAS; -#endif -#if CXIMAGE_SUPPORT_JBG - n++; if (index == n) return CXIMAGE_FORMAT_JBG; -#endif -#if CXIMAGE_SUPPORT_MNG - n++; if (index == n) return CXIMAGE_FORMAT_MNG; -#endif -#if CXIMAGE_SUPPORT_SKA - n++; if (index == n) return CXIMAGE_FORMAT_SKA; -#endif -#if CXIMAGE_SUPPORT_RAW - n++; if (index == n) return CXIMAGE_FORMAT_RAW; -#endif - - return CXIMAGE_FORMAT_UNKNOWN; -} -//////////////////////////////////////////////////////////////////////////////// -DWORD CxImage::GetTypeIndexFromId(const DWORD id) -{ - DWORD n; - - n=0; if (id == CXIMAGE_FORMAT_UNKNOWN) return n; -#if CXIMAGE_SUPPORT_BMP - n++; if (id == CXIMAGE_FORMAT_BMP) return n; -#endif -#if CXIMAGE_SUPPORT_GIF - n++; if (id == CXIMAGE_FORMAT_GIF) return n; -#endif -#if CXIMAGE_SUPPORT_JPG - n++; if (id == CXIMAGE_FORMAT_JPG) return n; -#endif -#if CXIMAGE_SUPPORT_PNG - n++; if (id == CXIMAGE_FORMAT_PNG) return n; -#endif -#if CXIMAGE_SUPPORT_ICO - n++; if (id == CXIMAGE_FORMAT_ICO) return n; -#endif -#if CXIMAGE_SUPPORT_TIF - n++; if (id == CXIMAGE_FORMAT_TIF) return n; -#endif -#if CXIMAGE_SUPPORT_TGA - n++; if (id == CXIMAGE_FORMAT_TGA) return n; -#endif -#if CXIMAGE_SUPPORT_PCX - n++; if (id == CXIMAGE_FORMAT_PCX) return n; -#endif -#if CXIMAGE_SUPPORT_WBMP - n++; if (id == CXIMAGE_FORMAT_WBMP) return n; -#endif -#if CXIMAGE_SUPPORT_WMF - n++; if (id == CXIMAGE_FORMAT_WMF) return n; -#endif -#if CXIMAGE_SUPPORT_JP2 - n++; if (id == CXIMAGE_FORMAT_JP2) return n; -#endif -#if CXIMAGE_SUPPORT_JPC - n++; if (id == CXIMAGE_FORMAT_JPC) return n; -#endif -#if CXIMAGE_SUPPORT_PGX - n++; if (id == CXIMAGE_FORMAT_PGX) return n; -#endif -#if CXIMAGE_SUPPORT_PNM - n++; if (id == CXIMAGE_FORMAT_PNM) return n; -#endif -#if CXIMAGE_SUPPORT_RAS - n++; if (id == CXIMAGE_FORMAT_RAS) return n; -#endif -#if CXIMAGE_SUPPORT_JBG - n++; if (id == CXIMAGE_FORMAT_JBG) return n; -#endif -#if CXIMAGE_SUPPORT_MNG - n++; if (id == CXIMAGE_FORMAT_MNG) return n; -#endif -#if CXIMAGE_SUPPORT_SKA - n++; if (id == CXIMAGE_FORMAT_SKA) return n; -#endif -#if CXIMAGE_SUPPORT_RAW - n++; if (id == CXIMAGE_FORMAT_RAW) return n; -#endif - - return 0; -} -//////////////////////////////////////////////////////////////////////////////// -/** - * \return current frame delay in milliseconds. Only for GIF and MNG formats. - */ -DWORD CxImage::GetFrameDelay() const -{ - return info.dwFrameDelay; -} -//////////////////////////////////////////////////////////////////////////////// -/** - * Sets current frame delay. Only for GIF format. - * \param d = delay in milliseconds - */ -void CxImage::SetFrameDelay(DWORD d) -{ - info.dwFrameDelay=d; -} -//////////////////////////////////////////////////////////////////////////////// -void CxImage::GetOffset(long *x,long *y) -{ - *x=info.xOffset; - *y=info.yOffset; -} -//////////////////////////////////////////////////////////////////////////////// -void CxImage::SetOffset(long x,long y) -{ - info.xOffset=x; - info.yOffset=y; -} -//////////////////////////////////////////////////////////////////////////////// -/** - * \sa SetJpegQuality, GetJpegQualityF - * \author [DP]; changes [Stefan Schürmans] - */ -BYTE CxImage::GetJpegQuality() const -{ - return (BYTE)(info.fQuality + 0.5f); -} -//////////////////////////////////////////////////////////////////////////////// -/** - * \sa SetJpegQuality, GetJpegQuality - * \author [Stefan Schürmans] - */ -float CxImage::GetJpegQualityF() const -{ - return info.fQuality; -} -//////////////////////////////////////////////////////////////////////////////// -/** - * quality level for JPEG and JPEG2000 - * \param q: can be from 0 to 100 - * \author [DP]; changes [Stefan Schürmans] - */ -void CxImage::SetJpegQuality(BYTE q){ - info.fQuality = (float)q; -} -//////////////////////////////////////////////////////////////////////////////// -/** - * quality level for JPEG and JPEG2000 - * necessary for JPEG2000 when quality is between 0.0 and 1.0 - * \param q: can be from 0.0 to 100.0 - * \author [Stefan Schürmans] - */ -void CxImage::SetJpegQualityF(float q){ - if (q>0) info.fQuality = q; - else info.fQuality = 0.0f; -} -//////////////////////////////////////////////////////////////////////////////// -/** - * \sa SetJpegScale - */ -BYTE CxImage::GetJpegScale() const -{ - return info.nJpegScale; -} -//////////////////////////////////////////////////////////////////////////////// -/** - * scaling down during JPEG decoding valid numbers are 1, 2, 4, 8 - * \author [ignacio] - */ -void CxImage::SetJpegScale(BYTE q){ - info.nJpegScale = q; -} -//////////////////////////////////////////////////////////////////////////////// -/** - * Used to monitor the slow loops. - * \return value is from 0 to 100. - * \sa SetProgress - */ -long CxImage::GetProgress() const -{ - return info.nProgress; -} -//////////////////////////////////////////////////////////////////////////////// -/** - * \return the escape code. - * \sa SetEscape - */ -long CxImage::GetEscape() const -{ - return info.nEscape; -} -//////////////////////////////////////////////////////////////////////////////// -/** - * Forces the value of the internal progress variable. - * \param p should be from 0 to 100. - * \sa GetProgress - */ -void CxImage::SetProgress(long p) -{ - info.nProgress = p; -} -//////////////////////////////////////////////////////////////////////////////// -/** - * Used to quit the slow loops or the codecs. - * - SetEscape(-1) before Decode forces the function to exit, right after - * the image width and height are available ( for bmp, jpg, gif, tif ) - */ -void CxImage::SetEscape(long i) -{ - info.nEscape = i; -} -//////////////////////////////////////////////////////////////////////////////// -/** - * Checks if the image is correctly initializated. - */ -bool CxImage::IsValid() const -{ - return pDib!=0; -} -//////////////////////////////////////////////////////////////////////////////// -/** - * True if the image is enabled for painting. - */ -bool CxImage::IsEnabled() const -{ - return info.bEnabled; -} -//////////////////////////////////////////////////////////////////////////////// -/** - * Enables/disables the image. - */ -void CxImage::Enable(bool enable) -{ - info.bEnabled=enable; -} -//////////////////////////////////////////////////////////////////////////////// -/** - * This function must be used after a Decode() / Load() call. - * Use the sequence SetFrame(-1); Load(...); GetNumFrames(); - * to get the number of images without loading the first image. - * \return the number of images in the file. - */ -long CxImage::GetNumFrames() const -{ - return info.nNumFrames; -} -//////////////////////////////////////////////////////////////////////////////// -/** - * \return the current selected image (zero-based index). - */ -long CxImage::GetFrame() const -{ - return info.nFrame; -} -//////////////////////////////////////////////////////////////////////////////// -/** - * Sets the image number that the next Decode() / Load() call will load - */ -void CxImage::SetFrame(long nFrame){ - info.nFrame=nFrame; -} -//////////////////////////////////////////////////////////////////////////////// -/** - * Sets the method for drawing the frame related to others - * \sa GetDisposalMethod - */ -void CxImage::SetDisposalMethod(BYTE dm) -{ info.dispmeth=dm; } -//////////////////////////////////////////////////////////////////////////////// -/** - * Gets the method for drawing the frame related to others - * Values : 0 - No disposal specified. The decoder is - * not required to take any action. - * 1 - Do not dispose. The graphic is to be left - * in place. - * 2 - Restore to background color. The area used by the - * graphic must be restored to the background color. - * 3 - Restore to previous. The decoder is required to - * restore the area overwritten by the graphic with - * what was there prior to rendering the graphic. - * 4-7 - To be defined. - */ -BYTE CxImage::GetDisposalMethod() const -{ return info.dispmeth; } -//////////////////////////////////////////////////////////////////////////////// -bool CxImage::GetRetreiveAllFrames() const -{ return info.bGetAllFrames; } -//////////////////////////////////////////////////////////////////////////////// -void CxImage::SetRetreiveAllFrames(bool flag) -{ info.bGetAllFrames = flag; } -//////////////////////////////////////////////////////////////////////////////// -CxImage * CxImage::GetFrame(long nFrame) const -{ - if ( ppFrames == NULL) return NULL; - if ( info.nNumFrames == 0) return NULL; - if ( nFrame >= info.nNumFrames ) return NULL; - if ( nFrame < 0) nFrame = info.nNumFrames - 1; - return ppFrames[nFrame]; -} -//////////////////////////////////////////////////////////////////////////////// -short CxImage::ntohs(const short word) -{ - if (info.bLittleEndianHost) return word; - return ( (word & 0xff) << 8 ) | ( (word >> 8) & 0xff ); -} -//////////////////////////////////////////////////////////////////////////////// -long CxImage::ntohl(const long dword) -{ - if (info.bLittleEndianHost) return dword; - return ((dword & 0xff) << 24 ) | ((dword & 0xff00) << 8 ) | - ((dword >> 8) & 0xff00) | ((dword >> 24) & 0xff); -} -//////////////////////////////////////////////////////////////////////////////// -void CxImage::bihtoh(BITMAPINFOHEADER* bih) -{ - bih->biSize = ntohl(bih->biSize); - bih->biWidth = ntohl(bih->biWidth); - bih->biHeight = ntohl(bih->biHeight); - bih->biPlanes = ntohs(bih->biPlanes); - bih->biBitCount = ntohs(bih->biBitCount); - bih->biCompression = ntohl(bih->biCompression); - bih->biSizeImage = ntohl(bih->biSizeImage); - bih->biXPelsPerMeter = ntohl(bih->biXPelsPerMeter); - bih->biYPelsPerMeter = ntohl(bih->biYPelsPerMeter); - bih->biClrUsed = ntohl(bih->biClrUsed); - bih->biClrImportant = ntohl(bih->biClrImportant); -} -//////////////////////////////////////////////////////////////////////////////// -/** - * Returns the last reported error. - */ -const char* CxImage::GetLastError() -{ - return info.szLastError; -} -//////////////////////////////////////////////////////////////////////////////// -DWORD CxImage::DumpSize() -{ - DWORD n; - n = sizeof(BITMAPINFOHEADER) + sizeof(CXIMAGEINFO) + GetSize(); - - if (pAlpha){ - n += 1 + head.biWidth * head.biHeight; - } else n++; - - if (pSelection){ - n += 1 + head.biWidth * head.biHeight; - } else n++; - - if (ppLayers){ - for (long m=0; mDumpSize(); - } - } - } else n++; - - if (ppFrames){ - for (long m=0; mDumpSize(); - } - } - } else n++; - - return n; -} -//////////////////////////////////////////////////////////////////////////////// -DWORD CxImage::Dump(BYTE * dst) -{ - if (!dst) return 0; - - memcpy(dst,&head,sizeof(BITMAPINFOHEADER)); - dst += sizeof(BITMAPINFOHEADER); - - memcpy(dst,&info,sizeof(CXIMAGEINFO)); - dst += sizeof(CXIMAGEINFO); - - memcpy(dst,pDib,GetSize()); - dst += GetSize(); - - if (pAlpha){ - memset(dst++, 1, 1); - memcpy(dst,pAlpha,head.biWidth * head.biHeight); - dst += head.biWidth * head.biHeight; - } else { - memset(dst++, 0, 1); - } - - if (pSelection){ - memset(dst++, 1, 1); - memcpy(dst,pSelection,head.biWidth * head.biHeight); - dst += head.biWidth * head.biHeight; - } else { - memset(dst++, 0, 1); - } - - if (ppLayers){ - memset(dst++, 1, 1); - for (long m=0; mDump(dst); - } - } - } else { - memset(dst++, 0, 1); - } - - if (ppFrames){ - memset(dst++, 1, 1); - for (long m=0; mDump(dst); - } - } - } else { - memset(dst++, 0, 1); - } - - return DumpSize(); -} -//////////////////////////////////////////////////////////////////////////////// -DWORD CxImage::UnDump(const BYTE * src) -{ - if (!src) - return 0; - if (!Destroy()) - return 0; - if (!DestroyFrames()) - return 0; - - DWORD n = 0; - - memcpy(&head,src,sizeof(BITMAPINFOHEADER)); - n += sizeof(BITMAPINFOHEADER); - - memcpy(&info,&src[n],sizeof(CXIMAGEINFO)); - n += sizeof(CXIMAGEINFO); - - if (!Create(head.biWidth, head.biHeight, head.biBitCount, info.dwType)) - return 0; - - memcpy(pDib,&src[n],GetSize()); - n += GetSize(); - - if (src[n++]){ - if (AlphaCreate()){ - memcpy(pAlpha, &src[n], head.biWidth * head.biHeight); - } - n += head.biWidth * head.biHeight; - } - - if (src[n++]){ - RECT box = info.rSelectionBox; - if (SelectionCreate()){ - info.rSelectionBox = box; - memcpy(pSelection, &src[n], head.biWidth * head.biHeight); - } - n += head.biWidth * head.biHeight; - } - - if (src[n++]){ - ppLayers = new CxImage*[info.nNumLayers]; - for (long m=0; mUnDump(&src[n]); - } - } - - if (src[n++]){ - ppFrames = new CxImage*[info.nNumFrames]; - for (long m=0; mUnDump(&src[n]); - } - } - - return n; -} -//////////////////////////////////////////////////////////////////////////////// -/** - * \return A.BBCCCDDDD - * - A = main version - * - BB = main revision - * - CCC = minor revision (letter) - * - DDDD = experimental revision - */ -const float CxImage::GetVersionNumber() -{ - return 6.000000015f; -} -//////////////////////////////////////////////////////////////////////////////// -const TCHAR* CxImage::GetVersion() -{ - static const TCHAR CxImageVersion[] = _T("CxImage 6.0.0"); - return (CxImageVersion); -} -//////////////////////////////////////////////////////////////////////////////// diff --git a/src/3rdParty/CxImage/CxImage/ximaint.cpp b/src/3rdParty/CxImage/CxImage/ximaint.cpp deleted file mode 100644 index 20b3c68b6a..0000000000 --- a/src/3rdParty/CxImage/CxImage/ximaint.cpp +++ /dev/null @@ -1,1056 +0,0 @@ -// xImaInt.cpp : interpolation functions -/* 02/2004 - Branko Brevensek - * CxImage version 6.0.0 02/Feb/2008 - Davide Pizzolato - www.xdp.it - */ - -#include "ximage.h" -#include "ximath.h" - -#if CXIMAGE_SUPPORT_INTERPOLATION - -//////////////////////////////////////////////////////////////////////////////// -/** - * Recalculates coordinates according to specified overflow method. - * If pixel (x,y) lies within image, nothing changes. - * - * \param x, y - coordinates of pixel - * \param ofMethod - overflow method - * - * \return x, y - new coordinates (pixel (x,y) now lies inside image) - * - * \author ***bd*** 2.2004 - */ -void CxImage::OverflowCoordinates(long &x, long &y, OverflowMethod const ofMethod) -{ - if (IsInside(x,y)) return; //if pixel is within bounds, no change - switch (ofMethod) { - case OM_REPEAT: - //clip coordinates - x=max(x,0); x=min(x, head.biWidth-1); - y=max(y,0); y=min(y, head.biHeight-1); - break; - case OM_WRAP: - //wrap coordinates - x = x % head.biWidth; - y = y % head.biHeight; - if (x<0) x = head.biWidth + x; - if (y<0) y = head.biHeight + y; - break; - case OM_MIRROR: - //mirror pixels near border - if (x<0) x=((-x) % head.biWidth); - else if (x>=head.biWidth) x=head.biWidth-(x % head.biWidth + 1); - if (y<0) y=((-y) % head.biHeight); - else if (y>=head.biHeight) y=head.biHeight-(y % head.biHeight + 1); - break; - default: - return; - }//switch -} - -//////////////////////////////////////////////////////////////////////////////// -/** - * See OverflowCoordinates for integer version - * \author ***bd*** 2.2004 - */ -void CxImage::OverflowCoordinates(float &x, float &y, OverflowMethod const ofMethod) -{ - if (x>=0 && x=0 && y=head.biWidth) x=head.biWidth-((float)fmod(x, (float) head.biWidth) + 1); - if (y<0) y=(float)fmod(-y, (float) head.biHeight); - else if (y>=head.biHeight) y=head.biHeight-((float)fmod(y, (float) head.biHeight) + 1); - break; - default: - return; - }//switch -} - -//////////////////////////////////////////////////////////////////////////////// -/** - * Method return pixel color. Different methods are implemented for out of bounds pixels. - * If an image has alpha channel, alpha value is returned in .RGBReserved. - * - * \param x,y : pixel coordinates - * \param ofMethod : out-of-bounds method: - * - OF_WRAP - wrap over to pixels on other side of the image - * - OF_REPEAT - repeat last pixel on the edge - * - OF_COLOR - return input value of color - * - OF_BACKGROUND - return background color (if not set, return input color) - * - OF_TRANSPARENT - return transparent pixel - * - * \param rplColor : input color (returned for out-of-bound coordinates in OF_COLOR mode and if other mode is not applicable) - * - * \return color : color of pixel - * \author ***bd*** 2.2004 - */ -RGBQUAD CxImage::GetPixelColorWithOverflow(long x, long y, OverflowMethod const ofMethod, RGBQUAD* const rplColor) -{ - RGBQUAD color; //color to return - if ((!IsInside(x,y)) || pDib==NULL) { //is pixel within bouns?: - //pixel is out of bounds or no DIB - if (rplColor!=NULL) - color=*rplColor; - else { - color.rgbRed=color.rgbGreen=color.rgbBlue=255; color.rgbReserved=0; //default replacement colour: white transparent - }//if - if (pDib==NULL) return color; - //pixel is out of bounds: - switch (ofMethod) { - case OM_TRANSPARENT: -#if CXIMAGE_SUPPORT_ALPHA - if (AlphaIsValid()) { - //alpha transparency is supported and image has alpha layer - color.rgbReserved=0; - } else { -#endif //CXIMAGE_SUPPORT_ALPHA - //no alpha transparency - if (GetTransIndex()>=0) { - color=GetTransColor(); //single color transparency enabled (return transparent color) - }//if -#if CXIMAGE_SUPPORT_ALPHA - }//if -#endif //CXIMAGE_SUPPORT_ALPHA - return color; - case OM_BACKGROUND: - //return background color (if it exists, otherwise input value) - if (info.nBkgndIndex >= 0) { - if (head.biBitCount<24) color = GetPaletteColor((BYTE)info.nBkgndIndex); - else color = info.nBkgndColor; - }//if - return color; - case OM_REPEAT: - case OM_WRAP: - case OM_MIRROR: - OverflowCoordinates(x,y,ofMethod); - break; - default: - //simply return replacement color (OM_COLOR and others) - return color; - }//switch - }//if - //just return specified pixel (it's within bounds) - return BlindGetPixelColor(x,y); -} - -//////////////////////////////////////////////////////////////////////////////// -/** - * This method reconstructs image according to chosen interpolation method and then returns pixel (x,y). - * (x,y) can lie between actual image pixels. If (x,y) lies outside of image, method returns value - * according to overflow method. - * This method is very useful for geometrical image transformations, where destination pixel - * can often assume color value lying between source pixels. - * - * \param (x,y) - coordinates of pixel to return - * GPCI method recreates "analogue" image back from digital data, so x and y - * are float values and color value of point (1.1,1) will generally not be same - * as (1,1). Center of first pixel is at (0,0) and center of pixel right to it is (1,0). - * (0.5,0) is half way between these two pixels. - * \param inMethod - interpolation (reconstruction) method (kernel) to use: - * - IM_NEAREST_NEIGHBOUR - returns colour of nearest lying pixel (causes stairy look of - * processed images) - * - IM_BILINEAR - interpolates colour from four neighbouring pixels (softens image a bit) - * - IM_BICUBIC - interpolates from 16 neighbouring pixels (can produce "halo" artifacts) - * - IM_BICUBIC2 - interpolates from 16 neighbouring pixels (perhaps a bit less halo artifacts - than IM_BICUBIC) - * - IM_BSPLINE - interpolates from 16 neighbouring pixels (softens image, washes colours) - * (As far as I know, image should be prefiltered for this method to give - * good results... some other time :) ) - * This method uses bicubic interpolation kernel from CXImage 5.99a and older - * versions. - * - IM_LANCZOS - interpolates from 12*12 pixels (slow, ringing artifacts) - * - * \param ofMethod - overflow method (see comments at GetPixelColorWithOverflow) - * \param rplColor - pointer to color used for out of borders pixels in OM_COLOR mode - * (and other modes if colour can't calculated in a specified way) - * - * \return interpolated color value (including interpolated alpha value, if image has alpha layer) - * - * \author ***bd*** 2.2004 - */ -RGBQUAD CxImage::GetPixelColorInterpolated( - float x,float y, - InterpolationMethod const inMethod, - OverflowMethod const ofMethod, - RGBQUAD* const rplColor) -{ - //calculate nearest pixel - int xi=(int)(x); if (x<0) xi--; //these replace (incredibly slow) floor (Visual c++ 2003, AMD Athlon) - int yi=(int)(y); if (y<0) yi--; - RGBQUAD color; //calculated colour - - switch (inMethod) { - case IM_NEAREST_NEIGHBOUR: - return GetPixelColorWithOverflow((long)(x+0.5f), (long)(y+0.5f), ofMethod, rplColor); - default: { - //IM_BILINEAR: bilinear interpolation - if (xi<-1 || xi>=head.biWidth || yi<-1 || yi>=head.biHeight) { //all 4 points are outside bounds?: - switch (ofMethod) { - case OM_COLOR: case OM_TRANSPARENT: case OM_BACKGROUND: - //we don't need to interpolate anything with all points outside in this case - return GetPixelColorWithOverflow(-999, -999, ofMethod, rplColor); - default: - //recalculate coordinates and use faster method later on - OverflowCoordinates(x,y,ofMethod); - xi=(int)(x); if (x<0) xi--; //x and/or y have changed ... recalculate xi and yi - yi=(int)(y); if (y<0) yi--; - }//switch - }//if - //get four neighbouring pixels - if ((xi+1)=0 && (yi+1)=0 && head.biClrUsed==0) { - //all pixels are inside RGB24 image... optimize reading (and use fixed point arithmetic) - WORD wt1=(WORD)((x-xi)*256.0f), wt2=(WORD)((y-yi)*256.0f); - WORD wd=wt1*wt2>>8; - WORD wb=wt1-wd; - WORD wc=wt2-wd; - WORD wa=256-wt1-wc; - WORD wrr,wgg,wbb; - BYTE *pxptr=(BYTE*)info.pImage+yi*info.dwEffWidth+xi*3; - wbb=wa*(*pxptr++); wgg=wa*(*pxptr++); wrr=wa*(*pxptr++); - wbb+=wb*(*pxptr++); wgg+=wb*(*pxptr++); wrr+=wb*(*pxptr); - pxptr+=(info.dwEffWidth-5); //move to next row - wbb+=wc*(*pxptr++); wgg+=wc*(*pxptr++); wrr+=wc*(*pxptr++); - wbb+=wd*(*pxptr++); wgg+=wd*(*pxptr++); wrr+=wd*(*pxptr); - color.rgbRed=(BYTE) (wrr>>8); color.rgbGreen=(BYTE) (wgg>>8); color.rgbBlue=(BYTE) (wbb>>8); -#if CXIMAGE_SUPPORT_ALPHA - if (pAlpha) { - WORD waa; - //image has alpha layer... we have to do the same for alpha data - pxptr=AlphaGetPointer(xi,yi); //pointer to first byte - waa=wa*(*pxptr++); waa+=wb*(*pxptr); //first two pixels - pxptr+=(head.biWidth-1); //move to next row - waa+=wc*(*pxptr++); waa+=wd*(*pxptr); //and second row pixels - color.rgbReserved=(BYTE) (waa>>8); - } else -#endif - { //Alpha not supported or no alpha at all - color.rgbReserved = 0; - } - return color; - } else { - //default (slower) way to get pixels (not RGB24 or some pixels out of borders) - float t1=x-xi, t2=y-yi; - float d=t1*t2; - float b=t1-d; - float c=t2-d; - float a=1-t1-c; - RGBQUAD rgb11,rgb21,rgb12,rgb22; - rgb11=GetPixelColorWithOverflow(xi, yi, ofMethod, rplColor); - rgb21=GetPixelColorWithOverflow(xi+1, yi, ofMethod, rplColor); - rgb12=GetPixelColorWithOverflow(xi, yi+1, ofMethod, rplColor); - rgb22=GetPixelColorWithOverflow(xi+1, yi+1, ofMethod, rplColor); - //calculate linear interpolation - color.rgbRed=(BYTE) (a*rgb11.rgbRed+b*rgb21.rgbRed+c*rgb12.rgbRed+d*rgb22.rgbRed); - color.rgbGreen=(BYTE) (a*rgb11.rgbGreen+b*rgb21.rgbGreen+c*rgb12.rgbGreen+d*rgb22.rgbGreen); - color.rgbBlue=(BYTE) (a*rgb11.rgbBlue+b*rgb21.rgbBlue+c*rgb12.rgbBlue+d*rgb22.rgbBlue); -#if CXIMAGE_SUPPORT_ALPHA - if (AlphaIsValid()) - color.rgbReserved=(BYTE) (a*rgb11.rgbReserved+b*rgb21.rgbReserved+c*rgb12.rgbReserved+d*rgb22.rgbReserved); - else -#endif - { //Alpha not supported or no alpha at all - color.rgbReserved = 0; - } - return color; - }//if - }//default - case IM_BICUBIC: - case IM_BICUBIC2: - case IM_BSPLINE: - case IM_BOX: - case IM_HERMITE: - case IM_HAMMING: - case IM_SINC: - case IM_BLACKMAN: - case IM_BESSEL: - case IM_GAUSSIAN: - case IM_QUADRATIC: - case IM_MITCHELL: - case IM_CATROM: - case IM_HANNING: - case IM_POWER: - //bicubic interpolation(s) - if (((xi+2)<0) || ((xi-1)>=head.biWidth) || ((yi+2)<0) || ((yi-1)>=head.biHeight)) { //all points are outside bounds?: - switch (ofMethod) { - case OM_COLOR: case OM_TRANSPARENT: case OM_BACKGROUND: - //we don't need to interpolate anything with all points outside in this case - return GetPixelColorWithOverflow(-999, -999, ofMethod, rplColor); - break; - default: - //recalculate coordinates and use faster method later on - OverflowCoordinates(x,y,ofMethod); - xi=(int)(x); if (x<0) xi--; //x and/or y have changed ... recalculate xi and yi - yi=(int)(y); if (y<0) yi--; - }//switch - }//if - - //some variables needed from here on - int xii,yii; //x any y integer indexes for loops - float kernel, kernelyc; //kernel cache - float kernelx[12], kernely[4]; //precalculated kernel values - float rr,gg,bb,aa; //accumulated color values - //calculate multiplication factors for all pixels - int i; - switch (inMethod) { - case IM_BICUBIC: - for (i=0; i<4; i++) { - kernelx[i]=KernelCubic((float)(xi+i-1-x)); - kernely[i]=KernelCubic((float)(yi+i-1-y)); - }//for i - break; - case IM_BICUBIC2: - for (i=0; i<4; i++) { - kernelx[i]=KernelGeneralizedCubic((float)(xi+i-1-x), -0.5); - kernely[i]=KernelGeneralizedCubic((float)(yi+i-1-y), -0.5); - }//for i - break; - case IM_BSPLINE: - for (i=0; i<4; i++) { - kernelx[i]=KernelBSpline((float)(xi+i-1-x)); - kernely[i]=KernelBSpline((float)(yi+i-1-y)); - }//for i - break; - case IM_BOX: - for (i=0; i<4; i++) { - kernelx[i]=KernelBox((float)(xi+i-1-x)); - kernely[i]=KernelBox((float)(yi+i-1-y)); - }//for i - break; - case IM_HERMITE: - for (i=0; i<4; i++) { - kernelx[i]=KernelHermite((float)(xi+i-1-x)); - kernely[i]=KernelHermite((float)(yi+i-1-y)); - }//for i - break; - case IM_HAMMING: - for (i=0; i<4; i++) { - kernelx[i]=KernelHamming((float)(xi+i-1-x)); - kernely[i]=KernelHamming((float)(yi+i-1-y)); - }//for i - break; - case IM_SINC: - for (i=0; i<4; i++) { - kernelx[i]=KernelSinc((float)(xi+i-1-x)); - kernely[i]=KernelSinc((float)(yi+i-1-y)); - }//for i - break; - case IM_BLACKMAN: - for (i=0; i<4; i++) { - kernelx[i]=KernelBlackman((float)(xi+i-1-x)); - kernely[i]=KernelBlackman((float)(yi+i-1-y)); - }//for i - break; - case IM_BESSEL: - for (i=0; i<4; i++) { - kernelx[i]=KernelBessel((float)(xi+i-1-x)); - kernely[i]=KernelBessel((float)(yi+i-1-y)); - }//for i - break; - case IM_GAUSSIAN: - for (i=0; i<4; i++) { - kernelx[i]=KernelGaussian((float)(xi+i-1-x)); - kernely[i]=KernelGaussian((float)(yi+i-1-y)); - }//for i - break; - case IM_QUADRATIC: - for (i=0; i<4; i++) { - kernelx[i]=KernelQuadratic((float)(xi+i-1-x)); - kernely[i]=KernelQuadratic((float)(yi+i-1-y)); - }//for i - break; - case IM_MITCHELL: - for (i=0; i<4; i++) { - kernelx[i]=KernelMitchell((float)(xi+i-1-x)); - kernely[i]=KernelMitchell((float)(yi+i-1-y)); - }//for i - break; - case IM_CATROM: - for (i=0; i<4; i++) { - kernelx[i]=KernelCatrom((float)(xi+i-1-x)); - kernely[i]=KernelCatrom((float)(yi+i-1-y)); - }//for i - break; - case IM_HANNING: - for (i=0; i<4; i++) { - kernelx[i]=KernelHanning((float)(xi+i-1-x)); - kernely[i]=KernelHanning((float)(yi+i-1-y)); - }//for i - break; - case IM_POWER: - for (i=0; i<4; i++) { - kernelx[i]=KernelPower((float)(xi+i-1-x)); - kernely[i]=KernelPower((float)(yi+i-1-y)); - }//for i - break; - }//switch - rr=gg=bb=aa=0; - if (((xi+2)=1 && ((yi+2)=1) && !IsIndexed()) { - //optimized interpolation (faster pixel reads) for RGB24 images with all pixels inside bounds - BYTE *pxptr, *pxptra; - for (yii=yi-1; yii255) rr=255; if (rr<0) rr=0; color.rgbRed=(BYTE) rr; - if (gg>255) gg=255; if (gg<0) gg=0; color.rgbGreen=(BYTE) gg; - if (bb>255) bb=255; if (bb<0) bb=0; color.rgbBlue=(BYTE) bb; -#if CXIMAGE_SUPPORT_ALPHA - if (AlphaIsValid()) { - if (aa>255) aa=255; if (aa<0) aa=0; color.rgbReserved=(BYTE) aa; - } else -#endif - { //Alpha not supported or no alpha at all - color.rgbReserved = 0; - } - return color; - case IM_LANCZOS: - //lanczos window (16*16) sinc interpolation - if (((xi+6)<0) || ((xi-5)>=head.biWidth) || ((yi+6)<0) || ((yi-5)>=head.biHeight)) { - //all points are outside bounds - switch (ofMethod) { - case OM_COLOR: case OM_TRANSPARENT: case OM_BACKGROUND: - //we don't need to interpolate anything with all points outside in this case - return GetPixelColorWithOverflow(-999, -999, ofMethod, rplColor); - break; - default: - //recalculate coordinates and use faster method later on - OverflowCoordinates(x,y,ofMethod); - xi=(int)(x); if (x<0) xi--; //x and/or y have changed ... recalculate xi and yi - yi=(int)(y); if (y<0) yi--; - }//switch - }//if - - for (xii=xi-5; xii=0) && ((yi+6)=0) && !IsIndexed()) { - //optimized interpolation (faster pixel reads) for RGB24 images with all pixels inside bounds - BYTE *pxptr, *pxptra; - for (yii=yi-5; yii255) rr=255; if (rr<0) rr=0; color.rgbRed=(BYTE) rr; - if (gg>255) gg=255; if (gg<0) gg=0; color.rgbGreen=(BYTE) gg; - if (bb>255) bb=255; if (bb<0) bb=0; color.rgbBlue=(BYTE) bb; -#if CXIMAGE_SUPPORT_ALPHA - if (AlphaIsValid()) { - if (aa>255) aa=255; if (aa<0) aa=0; color.rgbReserved=(BYTE) aa; - } else -#endif - { //Alpha not supported or no alpha at all - color.rgbReserved = 0; - } - return color; - }//switch -} -//////////////////////////////////////////////////////////////////////////////// -/** - * Helper function for GetAreaColorInterpolated. - * Adds 'surf' portion of image pixel with color 'color' to (rr,gg,bb,aa). - */ -void CxImage::AddAveragingCont(RGBQUAD const &color, float const surf, float &rr, float &gg, float &bb, float &aa) -{ - rr+=color.rgbRed*surf; - gg+=color.rgbGreen*surf; - bb+=color.rgbBlue*surf; -#if CXIMAGE_SUPPORT_ALPHA - aa+=color.rgbReserved*surf; -#endif -} -//////////////////////////////////////////////////////////////////////////////// -/** - * This method is similar to GetPixelColorInterpolated, but this method also properly handles - * subsampling. - * If you need to sample original image with interval of more than 1 pixel (as when shrinking an image), - * you should use this method instead of GetPixelColorInterpolated or aliasing will occur. - * When area width and height are both less than pixel, this method gets pixel color by interpolating - * color of frame center with selected (inMethod) interpolation by calling GetPixelColorInterpolated. - * If width and height are more than 1, method calculates color by averaging color of pixels within area. - * Interpolation method is not used in this case. Pixel color is interpolated by averaging instead. - * If only one of both is more than 1, method uses combination of interpolation and averaging. - * Chosen interpolation method is used, but since it is averaged later on, there is little difference - * between IM_BILINEAR (perhaps best for this case) and better methods. IM_NEAREST_NEIGHBOUR again - * leads to aliasing artifacts. - * This method is a bit slower than GetPixelColorInterpolated and when aliasing is not a problem, you should - * simply use the later. - * - * \param xc, yc - center of (rectangular) area - * \param w, h - width and height of area - * \param inMethod - interpolation method that is used, when interpolation is used (see above) - * \param ofMethod - overflow method used when retrieving individual pixel colors - * \param rplColor - replacement colour to use, in OM_COLOR - * - * \author ***bd*** 2.2004 - */ -RGBQUAD CxImage::GetAreaColorInterpolated( - float const xc, float const yc, float const w, float const h, - InterpolationMethod const inMethod, - OverflowMethod const ofMethod, - RGBQUAD* const rplColor) -{ - RGBQUAD color; //calculated colour - - if (h<=1 && w<=1) { - //both width and height are less than one... we will use interpolation of center point - return GetPixelColorInterpolated(xc, yc, inMethod, ofMethod, rplColor); - } else { - //area is wider and/or taller than one pixel: - CxRect2 area(xc-w/2.0f, yc-h/2.0f, xc+w/2.0f, yc+h/2.0f); //area - int xi1=(int)(area.botLeft.x+0.49999999f); //low x - int yi1=(int)(area.botLeft.y+0.49999999f); //low y - - - int xi2=(int)(area.topRight.x+0.5f); //top x - int yi2=(int)(area.topRight.y+0.5f); //top y (for loops) - - float rr,gg,bb,aa; //red, green, blue and alpha components - rr=gg=bb=aa=0; - int x,y; //loop counters - float s=0; //surface of all pixels - float cps; //surface of current crosssection - if (h>1 && w>1) { - //width and height of area are greater than one pixel, so we can employ "ordinary" averaging - CxRect2 intBL, intTR; //bottom left and top right intersection - intBL=area.CrossSection(CxRect2(((float)xi1)-0.5f, ((float)yi1)-0.5f, ((float)xi1)+0.5f, ((float)yi1)+0.5f)); - intTR=area.CrossSection(CxRect2(((float)xi2)-0.5f, ((float)yi2)-0.5f, ((float)xi2)+0.5f, ((float)yi2)+0.5f)); - float wBL, wTR, hBL, hTR; - wBL=intBL.Width(); //width of bottom left pixel-area intersection - hBL=intBL.Height(); //height of bottom left... - wTR=intTR.Width(); //width of top right... - hTR=intTR.Height(); //height of top right... - - AddAveragingCont(GetPixelColorWithOverflow(xi1,yi1,ofMethod,rplColor), wBL*hBL, rr, gg, bb, aa); //bottom left pixel - AddAveragingCont(GetPixelColorWithOverflow(xi2,yi1,ofMethod,rplColor), wTR*hBL, rr, gg, bb, aa); //bottom right pixel - AddAveragingCont(GetPixelColorWithOverflow(xi1,yi2,ofMethod,rplColor), wBL*hTR, rr, gg, bb, aa); //top left pixel - AddAveragingCont(GetPixelColorWithOverflow(xi2,yi2,ofMethod,rplColor), wTR*hTR, rr, gg, bb, aa); //top right pixel - //bottom and top row - for (x=xi1+1; x255) rr=255; if (rr<0) rr=0; color.rgbRed=(BYTE) rr; - if (gg>255) gg=255; if (gg<0) gg=0; color.rgbGreen=(BYTE) gg; - if (bb>255) bb=255; if (bb<0) bb=0; color.rgbBlue=(BYTE) bb; -#if CXIMAGE_SUPPORT_ALPHA - if (AlphaIsValid()) { - if (aa>255) aa=255; if (aa<0) aa=0; color.rgbReserved=(BYTE) aa; - }//if -#endif - }//if - return color; -} - -//////////////////////////////////////////////////////////////////////////////// -float CxImage::KernelBSpline(const float x) -{ - if (x>2.0f) return 0.0f; - // thanks to Kristian Kratzenstein - float a, b, c, d; - float xm1 = x - 1.0f; // Was calculatet anyway cause the "if((x-1.0f) < 0)" - float xp1 = x + 1.0f; - float xp2 = x + 2.0f; - - if ((xp2) <= 0.0f) a = 0.0f; else a = xp2*xp2*xp2; // Only float, not float -> double -> float - if ((xp1) <= 0.0f) b = 0.0f; else b = xp1*xp1*xp1; - if (x <= 0) c = 0.0f; else c = x*x*x; - if ((xm1) <= 0.0f) d = 0.0f; else d = xm1*xm1*xm1; - - return (0.16666666666666666667f * (a - (4.0f * b) + (6.0f * c) - (4.0f * d))); - - /* equivalent - if (x < -2.0) - return(0.0f); - if (x < -1.0) - return((2.0f+x)*(2.0f+x)*(2.0f+x)*0.16666666666666666667f); - if (x < 0.0) - return((4.0f+x*x*(-6.0f-3.0f*x))*0.16666666666666666667f); - if (x < 1.0) - return((4.0f+x*x*(-6.0f+3.0f*x))*0.16666666666666666667f); - if (x < 2.0) - return((2.0f-x)*(2.0f-x)*(2.0f-x)*0.16666666666666666667f); - return(0.0f); - */ -} - -//////////////////////////////////////////////////////////////////////////////// -/** - * Bilinear interpolation kernel: - \verbatim - / - | 1-t , if 0 <= t <= 1 - h(t) = | t+1 , if -1 <= t < 0 - | 0 , otherwise - \ - \endverbatim - * ***bd*** 2.2004 - */ -float CxImage::KernelLinear(const float t) -{ -// if (0<=t && t<=1) return 1-t; -// if (-1<=t && t<0) return 1+t; -// return 0; - - // - if (t < -1.0f) - return 0.0f; - if (t < 0.0f) - return 1.0f+t; - if (t < 1.0f) - return 1.0f-t; - return 0.0f; -} - -//////////////////////////////////////////////////////////////////////////////// -/** - * Bicubic interpolation kernel (a=-1): - \verbatim - / - | 1-2|t|**2+|t|**3 , if |t| < 1 - h(t) = | 4-8|t|+5|t|**2-|t|**3 , if 1<=|t|<2 - | 0 , otherwise - \ - \endverbatim - * ***bd*** 2.2004 - */ -float CxImage::KernelCubic(const float t) -{ - float abs_t = (float)fabs(t); - float abs_t_sq = abs_t * abs_t; - if (abs_t<1) return 1-2*abs_t_sq+abs_t_sq*abs_t; - if (abs_t<2) return 4 - 8*abs_t +5*abs_t_sq - abs_t_sq*abs_t; - return 0; -} - -//////////////////////////////////////////////////////////////////////////////// -/** - * Bicubic kernel (for a=-1 it is the same as BicubicKernel): - \verbatim - / - | (a+2)|t|**3 - (a+3)|t|**2 + 1 , |t| <= 1 - h(t) = | a|t|**3 - 5a|t|**2 + 8a|t| - 4a , 1 < |t| <= 2 - | 0 , otherwise - \ - \endverbatim - * Often used values for a are -1 and -1/2. - */ -float CxImage::KernelGeneralizedCubic(const float t, const float a) -{ - float abs_t = (float)fabs(t); - float abs_t_sq = abs_t * abs_t; - if (abs_t<1) return (a+2)*abs_t_sq*abs_t - (a+3)*abs_t_sq + 1; - if (abs_t<2) return a*abs_t_sq*abs_t - 5*a*abs_t_sq + 8*a*abs_t - 4*a; - return 0; -} - -//////////////////////////////////////////////////////////////////////////////// -/** - * Lanczos windowed sinc interpolation kernel with radius r. - \verbatim - / - h(t) = | sinc(t)*sinc(t/r) , if |t| r) return 0; - if (t==0) return 1; - float pit=PI*t; - float pitd=pit/r; - return (float)((sin(pit)/pit) * (sin(pitd)/pitd)); -} - -//////////////////////////////////////////////////////////////////////////////// -float CxImage::KernelBox(const float x) -{ - if (x < -0.5f) - return 0.0f; - if (x < 0.5f) - return 1.0f; - return 0.0f; -} -//////////////////////////////////////////////////////////////////////////////// -float CxImage::KernelHermite(const float x) -{ - if (x < -1.0f) - return 0.0f; - if (x < 0.0f) - return (-2.0f*x-3.0f)*x*x+1.0f; - if (x < 1.0f) - return (2.0f*x-3.0f)*x*x+1.0f; - return 0.0f; -// if (fabs(x)>1) return 0.0f; -// return(0.5f+0.5f*(float)cos(PI*x)); -} -//////////////////////////////////////////////////////////////////////////////// -float CxImage::KernelHanning(const float x) -{ - if (fabs(x)>1) return 0.0f; - return (0.5f+0.5f*(float)cos(PI*x))*((float)sin(PI*x)/(PI*x)); -} -//////////////////////////////////////////////////////////////////////////////// -float CxImage::KernelHamming(const float x) -{ - if (x < -1.0f) - return 0.0f; - if (x < 0.0f) - return 0.92f*(-2.0f*x-3.0f)*x*x+1.0f; - if (x < 1.0f) - return 0.92f*(2.0f*x-3.0f)*x*x+1.0f; - return 0.0f; -// if (fabs(x)>1) return 0.0f; -// return(0.54f+0.46f*(float)cos(PI*x)); -} -//////////////////////////////////////////////////////////////////////////////// -float CxImage::KernelSinc(const float x) -{ - if (x == 0.0) - return(1.0); - return((float)sin(PI*x)/(PI*x)); -} -//////////////////////////////////////////////////////////////////////////////// -float CxImage::KernelBlackman(const float x) -{ - //if (fabs(x)>1) return 0.0f; - return (0.42f+0.5f*(float)cos(PI*x)+0.08f*(float)cos(2.0f*PI*x)); -} -//////////////////////////////////////////////////////////////////////////////// -float CxImage::KernelBessel_J1(const float x) -{ - double p, q; - - register long i; - - static const double - Pone[] = - { - 0.581199354001606143928050809e+21, - -0.6672106568924916298020941484e+20, - 0.2316433580634002297931815435e+19, - -0.3588817569910106050743641413e+17, - 0.2908795263834775409737601689e+15, - -0.1322983480332126453125473247e+13, - 0.3413234182301700539091292655e+10, - -0.4695753530642995859767162166e+7, - 0.270112271089232341485679099e+4 - }, - Qone[] = - { - 0.11623987080032122878585294e+22, - 0.1185770712190320999837113348e+20, - 0.6092061398917521746105196863e+17, - 0.2081661221307607351240184229e+15, - 0.5243710262167649715406728642e+12, - 0.1013863514358673989967045588e+10, - 0.1501793594998585505921097578e+7, - 0.1606931573481487801970916749e+4, - 0.1e+1 - }; - - p = Pone[8]; - q = Qone[8]; - for (i=7; i >= 0; i--) - { - p = p*x*x+Pone[i]; - q = q*x*x+Qone[i]; - } - return (float)(p/q); -} -//////////////////////////////////////////////////////////////////////////////// -float CxImage::KernelBessel_P1(const float x) -{ - double p, q; - - register long i; - - static const double - Pone[] = - { - 0.352246649133679798341724373e+5, - 0.62758845247161281269005675e+5, - 0.313539631109159574238669888e+5, - 0.49854832060594338434500455e+4, - 0.2111529182853962382105718e+3, - 0.12571716929145341558495e+1 - }, - Qone[] = - { - 0.352246649133679798068390431e+5, - 0.626943469593560511888833731e+5, - 0.312404063819041039923015703e+5, - 0.4930396490181088979386097e+4, - 0.2030775189134759322293574e+3, - 0.1e+1 - }; - - p = Pone[5]; - q = Qone[5]; - for (i=4; i >= 0; i--) - { - p = p*(8.0/x)*(8.0/x)+Pone[i]; - q = q*(8.0/x)*(8.0/x)+Qone[i]; - } - return (float)(p/q); -} -//////////////////////////////////////////////////////////////////////////////// -float CxImage::KernelBessel_Q1(const float x) -{ - double p, q; - - register long i; - - static const double - Pone[] = - { - 0.3511751914303552822533318e+3, - 0.7210391804904475039280863e+3, - 0.4259873011654442389886993e+3, - 0.831898957673850827325226e+2, - 0.45681716295512267064405e+1, - 0.3532840052740123642735e-1 - }, - Qone[] = - { - 0.74917374171809127714519505e+4, - 0.154141773392650970499848051e+5, - 0.91522317015169922705904727e+4, - 0.18111867005523513506724158e+4, - 0.1038187585462133728776636e+3, - 0.1e+1 - }; - - p = Pone[5]; - q = Qone[5]; - for (i=4; i >= 0; i--) - { - p = p*(8.0/x)*(8.0/x)+Pone[i]; - q = q*(8.0/x)*(8.0/x)+Qone[i]; - } - return (float)(p/q); -} -//////////////////////////////////////////////////////////////////////////////// -float CxImage::KernelBessel_Order1(float x) -{ - float p, q; - - if (x == 0.0) - return (0.0f); - p = x; - if (x < 0.0) - x=(-x); - if (x < 8.0) - return(p*KernelBessel_J1(x)); - q = (float)sqrt(2.0f/(PI*x))*(float)(KernelBessel_P1(x)*(1.0f/sqrt(2.0f)*(sin(x)-cos(x)))-8.0f/x*KernelBessel_Q1(x)* - (-1.0f/sqrt(2.0f)*(sin(x)+cos(x)))); - if (p < 0.0f) - q = (-q); - return (q); -} -//////////////////////////////////////////////////////////////////////////////// -float CxImage::KernelBessel(const float x) -{ - if (x == 0.0f) - return(PI/4.0f); - return(KernelBessel_Order1(PI*x)/(2.0f*x)); -} -//////////////////////////////////////////////////////////////////////////////// -float CxImage::KernelGaussian(const float x) -{ - return (float)(exp(-2.0f*x*x)*0.79788456080287f/*sqrt(2.0f/PI)*/); -} -//////////////////////////////////////////////////////////////////////////////// -float CxImage::KernelQuadratic(const float x) -{ - if (x < -1.5f) - return(0.0f); - if (x < -0.5f) - return(0.5f*(x+1.5f)*(x+1.5f)); - if (x < 0.5f) - return(0.75f-x*x); - if (x < 1.5f) - return(0.5f*(x-1.5f)*(x-1.5f)); - return(0.0f); -} -//////////////////////////////////////////////////////////////////////////////// -float CxImage::KernelMitchell(const float x) -{ -#define KM_B (1.0f/3.0f) -#define KM_C (1.0f/3.0f) -#define KM_P0 (( 6.0f - 2.0f * KM_B ) / 6.0f) -#define KM_P2 ((-18.0f + 12.0f * KM_B + 6.0f * KM_C) / 6.0f) -#define KM_P3 (( 12.0f - 9.0f * KM_B - 6.0f * KM_C) / 6.0f) -#define KM_Q0 (( 8.0f * KM_B + 24.0f * KM_C) / 6.0f) -#define KM_Q1 ((-12.0f * KM_B - 48.0f * KM_C) / 6.0f) -#define KM_Q2 (( 6.0f * KM_B + 30.0f * KM_C) / 6.0f) -#define KM_Q3 (( -1.0f * KM_B - 6.0f * KM_C) / 6.0f) - - if (x < -2.0) - return(0.0f); - if (x < -1.0) - return(KM_Q0-x*(KM_Q1-x*(KM_Q2-x*KM_Q3))); - if (x < 0.0f) - return(KM_P0+x*x*(KM_P2-x*KM_P3)); - if (x < 1.0f) - return(KM_P0+x*x*(KM_P2+x*KM_P3)); - if (x < 2.0f) - return(KM_Q0+x*(KM_Q1+x*(KM_Q2+x*KM_Q3))); - return(0.0f); -} -//////////////////////////////////////////////////////////////////////////////// -float CxImage::KernelCatrom(const float x) -{ - if (x < -2.0) - return(0.0f); - if (x < -1.0) - return(0.5f*(4.0f+x*(8.0f+x*(5.0f+x)))); - if (x < 0.0) - return(0.5f*(2.0f+x*x*(-5.0f-3.0f*x))); - if (x < 1.0) - return(0.5f*(2.0f+x*x*(-5.0f+3.0f*x))); - if (x < 2.0) - return(0.5f*(4.0f+x*(-8.0f+x*(5.0f-x)))); - return(0.0f); -} -//////////////////////////////////////////////////////////////////////////////// -float CxImage::KernelPower(const float x, const float a) -{ - if (fabs(x)>1) return 0.0f; - return (1.0f - (float)fabs(pow(x,a))); -} -//////////////////////////////////////////////////////////////////////////////// - -#endif diff --git a/src/3rdParty/CxImage/CxImage/ximaiter.h b/src/3rdParty/CxImage/CxImage/ximaiter.h deleted file mode 100644 index 3e5bff9ba8..0000000000 --- a/src/3rdParty/CxImage/CxImage/ximaiter.h +++ /dev/null @@ -1,253 +0,0 @@ -/* - * File: ImaIter.h - * Purpose: Declaration of the Platform Independent Image Base Class - * Author: Alejandro Aguilar Sierra - * Created: 1995 - * Copyright: (c) 1995, Alejandro Aguilar Sierra - * - * 07/08/2001 Davide Pizzolato - www.xdp.it - * - removed slow loops - * - added safe checks - * - * Permission is given by the author to freely redistribute and include - * this code in any program as long as this credit is given where due. - * - * COVERED CODE IS PROVIDED UNDER THIS LICENSE ON AN "AS IS" BASIS, WITHOUT WARRANTY - * OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, WITHOUT LIMITATION, WARRANTIES - * THAT THE COVERED CODE IS FREE OF DEFECTS, MERCHANTABLE, FIT FOR A PARTICULAR PURPOSE - * OR NON-INFRINGING. THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE COVERED - * CODE IS WITH YOU. SHOULD ANY COVERED CODE PROVE DEFECTIVE IN ANY RESPECT, YOU (NOT - * THE INITIAL DEVELOPER OR ANY OTHER CONTRIBUTOR) ASSUME THE COST OF ANY NECESSARY - * SERVICING, REPAIR OR CORRECTION. THIS DISCLAIMER OF WARRANTY CONSTITUTES AN ESSENTIAL - * PART OF THIS LICENSE. NO USE OF ANY COVERED CODE IS AUTHORIZED HEREUNDER EXCEPT UNDER - * THIS DISCLAIMER. - * - * Use at your own risk! - * ========================================================== - */ - -#if !defined(__ImaIter_h) -#define __ImaIter_h - -#include "ximage.h" -#include "ximadef.h" - -class CImageIterator -{ -friend class CxImage; -protected: - int Itx, Ity; // Counters - int Stepx, Stepy; - BYTE* IterImage; // Image pointer - CxImage *ima; -public: - // Constructors - CImageIterator ( void ); - CImageIterator ( CxImage *image ); - operator CxImage* (); - - // Iterators - BOOL ItOK (); - void Reset (); - void Upset (); - void SetRow(BYTE *buf, int n); - void GetRow(BYTE *buf, int n); - BYTE GetByte( ) { return IterImage[Itx]; } - void SetByte(BYTE b) { IterImage[Itx] = b; } - BYTE* GetRow(void); - BYTE* GetRow(int n); - BOOL NextRow(); - BOOL PrevRow(); - BOOL NextByte(); - BOOL PrevByte(); - - void SetSteps(int x, int y=0) { Stepx = x; Stepy = y; } - void GetSteps(int *x, int *y) { *x = Stepx; *y = Stepy; } - BOOL NextStep(); - BOOL PrevStep(); - - void SetY(int y); /* AD - for interlace */ - int GetY() {return Ity;} - BOOL GetCol(BYTE* pCol, DWORD x); - BOOL SetCol(BYTE* pCol, DWORD x); -}; - -///////////////////////////////////////////////////////////////////// -inline -CImageIterator::CImageIterator(void) -{ - ima = 0; - IterImage = 0; - Itx = Ity = 0; - Stepx = Stepy = 0; -} -///////////////////////////////////////////////////////////////////// -inline -CImageIterator::CImageIterator(CxImage *imageImpl): ima(imageImpl) -{ - if (ima) IterImage = ima->GetBits(); - Itx = Ity = 0; - Stepx = Stepy = 0; -} -///////////////////////////////////////////////////////////////////// -inline -CImageIterator::operator CxImage* () -{ - return ima; -} -///////////////////////////////////////////////////////////////////// -inline BOOL CImageIterator::ItOK () -{ - if (ima) return ima->IsInside(Itx, Ity); - else return FALSE; -} -///////////////////////////////////////////////////////////////////// -inline void CImageIterator::Reset() -{ - if (ima) IterImage = ima->GetBits(); - else IterImage=0; - Itx = Ity = 0; -} -///////////////////////////////////////////////////////////////////// -inline void CImageIterator::Upset() -{ - Itx = 0; - Ity = ima->GetHeight()-1; - IterImage = ima->GetBits() + ima->GetEffWidth()*(ima->GetHeight()-1); -} -///////////////////////////////////////////////////////////////////// -inline BOOL CImageIterator::NextRow() -{ - if (++Ity >= (int)ima->GetHeight()) return 0; - IterImage += ima->GetEffWidth(); - return 1; -} -///////////////////////////////////////////////////////////////////// -inline BOOL CImageIterator::PrevRow() -{ - if (--Ity < 0) return 0; - IterImage -= ima->GetEffWidth(); - return 1; -} -/* AD - for interlace */ -inline void CImageIterator::SetY(int y) -{ - if ((y < 0) || (y > (int)ima->GetHeight())) return; - Ity = y; - IterImage = ima->GetBits() + ima->GetEffWidth()*y; -} -///////////////////////////////////////////////////////////////////// -inline void CImageIterator::SetRow(BYTE *buf, int n) -{ - if (n<0) n = (int)ima->GetEffWidth(); - else n = min(n,(int)ima->GetEffWidth()); - - if ((IterImage!=NULL)&&(buf!=NULL)&&(n>0)) memcpy(IterImage,buf,n); -} -///////////////////////////////////////////////////////////////////// -inline void CImageIterator::GetRow(BYTE *buf, int n) -{ - if ((IterImage!=NULL)&&(buf!=NULL)&&(n>0)) - memcpy(buf,IterImage,min(n,(int)ima->GetEffWidth())); -} -///////////////////////////////////////////////////////////////////// -inline BYTE* CImageIterator::GetRow() -{ - return IterImage; -} -///////////////////////////////////////////////////////////////////// -inline BYTE* CImageIterator::GetRow(int n) -{ - SetY(n); - return IterImage; -} -///////////////////////////////////////////////////////////////////// -inline BOOL CImageIterator::NextByte() -{ - if (++Itx < (int)ima->GetEffWidth()) return 1; - else - if (++Ity < (int)ima->GetHeight()){ - IterImage += ima->GetEffWidth(); - Itx = 0; - return 1; - } else - return 0; -} -///////////////////////////////////////////////////////////////////// -inline BOOL CImageIterator::PrevByte() -{ - if (--Itx >= 0) return 1; - else - if (--Ity >= 0){ - IterImage -= ima->GetEffWidth(); - Itx = 0; - return 1; - } else - return 0; -} -///////////////////////////////////////////////////////////////////// -inline BOOL CImageIterator::NextStep() -{ - Itx += Stepx; - if (Itx < (int)ima->GetEffWidth()) return 1; - else { - Ity += Stepy; - if (Ity < (int)ima->GetHeight()){ - IterImage += ima->GetEffWidth(); - Itx = 0; - return 1; - } else - return 0; - } -} -///////////////////////////////////////////////////////////////////// -inline BOOL CImageIterator::PrevStep() -{ - Itx -= Stepx; - if (Itx >= 0) return 1; - else { - Ity -= Stepy; - if (Ity >= 0 && Ity < (int)ima->GetHeight()) { - IterImage -= ima->GetEffWidth(); - Itx = 0; - return 1; - } else - return 0; - } -} -///////////////////////////////////////////////////////////////////// -inline BOOL CImageIterator::GetCol(BYTE* pCol, DWORD x) -{ - if ((pCol==0)||(ima->GetBpp()<8)||(x>=ima->GetWidth())) - return 0; - DWORD h = ima->GetHeight(); - //DWORD line = ima->GetEffWidth(); - BYTE bytes = (BYTE)(ima->GetBpp()>>3); - BYTE* pSrc; - for (DWORD y=0;yGetBits(y) + x*bytes; - for (BYTE w=0;wGetBpp()<8)||(x>=ima->GetWidth())) - return 0; - DWORD h = ima->GetHeight(); - //DWORD line = ima->GetEffWidth(); - BYTE bytes = (BYTE)(ima->GetBpp()>>3); - BYTE* pSrc; - for (DWORD y=0;yGetBits(y) + x*bytes; - for (BYTE w=0;wnumcmpts_ > 64 || image->numcmpts_ < 0) - cx_throw("error: too many components"); - - // 01/Jan/2005: Always force conversion to sRGB. Seems to be required for many types of JPEG2000 file. - // if (depth!=1 && depth!=4 && depth!=8) - if (image->numcmpts_>=3 && depth <=8) - { - jas_image_t *newimage; - jas_cmprof_t *outprof; - //jas_eprintf("forcing conversion to sRGB\n"); - outprof = jas_cmprof_createfromclrspc(JAS_CLRSPC_SRGB); - if (!outprof) { - cx_throw("cannot create sRGB profile"); - } - newimage = jas_image_chclrspc(image, outprof, JAS_CMXFORM_INTENT_PER); - if (!newimage) { - jas_cmprof_destroy(outprof); // 01/Jan/2005: Destroy color profile on error. - cx_throw("cannot convert to sRGB"); - } - jas_image_destroy(image); - jas_cmprof_destroy(outprof); - image = newimage; - } - - bufs = (jas_matrix_t **)calloc(image->numcmpts_, sizeof(jas_matrix_t**)); - for (i = 0; i < image->numcmpts_; ++i) { - bufs[i] = jas_matrix_create(1, w); - if (!bufs[i]) { - cx_throw("error: cannot allocate memory"); - } - } - - int nshift = (depth>8) ? (depth-8) : 0; - - if (image->numcmpts_==3 && - image->cmpts_[0]->width_ == image->cmpts_[1]->width_ && - image->cmpts_[1]->width_ == image->cmpts_[2]->width_ && - image->cmpts_[0]->height_ == image->cmpts_[1]->height_ && - image->cmpts_[1]->height_ == image->cmpts_[2]->height_ && - image->cmpts_[0]->prec_ == image->cmpts_[1]->prec_ && - image->cmpts_[1]->prec_ == image->cmpts_[2]->prec_ ) - { - - if(!Create(w,h,24,fmt)) - cx_throw(""); - - RGBQUAD c; - for (y=0; ynumcmpts_; ++cmptno) { - jas_image_readcmpt(image, cmptno, 0, y, w, 1, bufs[cmptno]); - } - - for (x=0; x>nshift)); - c.rgbGreen = (BYTE)((jas_matrix_getv(bufs[1], x)>>nshift)); - c.rgbBlue = (BYTE)((jas_matrix_getv(bufs[2], x)>>nshift)); - SetPixelColor(x,h-1-y,c); - } - } - } else { - info.nNumFrames = image->numcmpts_; - if ((info.nFrame<0)||(info.nFrame>=info.nNumFrames)){ - cx_throw("wrong frame!"); - } - for (cmptno=0; cmptno<=info.nFrame; cmptno++) { - w = jas_image_cmptwidth(image,cmptno); - h = jas_image_cmptheight(image,cmptno); - depth = jas_image_cmptprec(image,cmptno); - if (depth>8) depth=8; - if(!Create(w,h,depth,imagetype)) - cx_throw(""); - SetGrayPalette(); - for (y=0; y>nshift))); - } - } - } - } - - - } cx_catch { - if (strcmp(message,"")) strncpy(info.szLastError,message,255); - if (info.nEscape == -1 && fmt>0){ - error = 0; - } else { - error = 1; - } - } - - if (bufs) { - for (i = 0; i < image->numcmpts_; ++i){ if (bufs[i]) jas_matrix_destroy(bufs[i]);} - free(bufs); - } - jas_cleanup(); - if (image) jas_image_destroy(image); - if (in) jas_stream_close(in); - return (error==0); -} -//////////////////////////////////////////////////////////////////////////////// -#endif //CXIMAGE_SUPPORT_DECODE -//////////////////////////////////////////////////////////////////////////////// -#if CXIMAGE_SUPPORT_ENCODE -//////////////////////////////////////////////////////////////////////////////// -bool CxImageJAS::Encode(CxFile * hFile, DWORD imagetype) -{ - if (EncodeSafeCheck(hFile)) return false; - - if (head.biClrUsed!=0 && !IsGrayScale()){ - strcpy(info.szLastError,"JasPer can save only RGB or GrayScale images"); - return false; - } - - jas_image_t *image=0; - jas_stream_t *out=0; - jas_matrix_t *cmpts[3]; - long x,y,yflip,error=0; - uint_fast16_t cmptno, numcmpts=0; - jas_image_cmptparm_t cmptparms[3], *cmptparm; - - cx_try { - - if (jas_init()) - cx_throw("cannot initialize jasper"); - - out = jas_stream_fdopen(0, "wb"); - if (!out) - cx_throw("error: cannot open standard output"); - - CxFileJas src(hFile,out); - - numcmpts = head.biClrUsed==0 ? 3 : 1; - - for (cmptno = 0, cmptparm = cmptparms; cmptno < numcmpts; ++cmptno, ++cmptparm) { - cmptparm->tlx = 0; - cmptparm->tly = 0; - cmptparm->hstep = 1; - cmptparm->vstep = 1; - cmptparm->width = head.biWidth; - cmptparm->height = head.biHeight; - cmptparm->prec = 8; - cmptparm->sgnd = false; - } - - /* Create image object. */ - image = jas_image_create(numcmpts, cmptparms, JAS_CLRSPC_UNKNOWN); - if (!image) - cx_throw("error : jas_image_create"); - - if (numcmpts == 3) { - jas_image_setclrspc(image, JAS_CLRSPC_SRGB); - jas_image_setcmpttype(image, 0, - JAS_IMAGE_CT_COLOR(JAS_CLRSPC_CHANIND_RGB_R)); - jas_image_setcmpttype(image, 1, - JAS_IMAGE_CT_COLOR(JAS_CLRSPC_CHANIND_RGB_G)); - jas_image_setcmpttype(image, 2, - JAS_IMAGE_CT_COLOR(JAS_CLRSPC_CHANIND_RGB_B)); - } else { - jas_image_setclrspc(image, JAS_CLRSPC_SGRAY); - jas_image_setcmpttype(image, 0, - JAS_IMAGE_CT_COLOR(JAS_CLRSPC_CHANIND_GRAY_Y)); - } - - - for (x = 0; x < numcmpts; ++x) { cmpts[x] = 0; } - /* Create temporary matrices to hold component data. */ - for (x = 0; x < numcmpts; ++x) { - cmpts[x] = jas_matrix_create(1, head.biWidth); - if (!cmpts[x]) { - cx_throw("error : can't allocate memory"); - } - } - - RGBQUAD c; - for (y = 0; y < head.biHeight; ++y) { - for (x = 0; x < head.biWidth; ++x) { - if (head.biClrUsed==0){ - c = GetPixelColor(x,y); - jas_matrix_setv(cmpts[0], x, c.rgbRed); - jas_matrix_setv(cmpts[1], x, c.rgbGreen); - jas_matrix_setv(cmpts[2], x, c.rgbBlue); - } else { - jas_matrix_setv(cmpts[0], x, GetPixelIndex(x,y)); - } - } - yflip = head.biHeight - 1 - y; - for (cmptno = 0; cmptno < numcmpts; ++cmptno) { - if (jas_image_writecmpt(image, cmptno, 0, yflip, head.biWidth, 1, cmpts[cmptno])) { - cx_throw("error : jas_image_writecmpt"); - } - } - } - - char szfmt[4]; - *szfmt = '\0'; -#if CXIMAGE_SUPPORT_JP2 - if (imagetype == CXIMAGE_FORMAT_JP2) strcpy(szfmt,"jp2"); -#endif -#if CXIMAGE_SUPPORT_JPC - if (imagetype == CXIMAGE_FORMAT_JPC) strcpy(szfmt,"jpc"); -#endif -#if CXIMAGE_SUPPORT_RAS - if (imagetype == CXIMAGE_FORMAT_RAS) strcpy(szfmt,"ras"); -#endif -#if CXIMAGE_SUPPORT_PNM - if (imagetype == CXIMAGE_FORMAT_PNM) strcpy(szfmt,"pnm"); -#endif -#if CXIMAGE_SUPPORT_PGX - if (imagetype == CXIMAGE_FORMAT_PGX){ - strcpy(szfmt,"pgx"); - if (head.biClrUsed==0) cx_throw("PGX can save only GrayScale images"); - } -#endif - int outfmt = jas_image_strtofmt(szfmt); - - char szoutopts[32]; - sprintf(szoutopts,"rate=%.3f", info.fQuality/100.0f); - - if (jas_image_encode(image, out, outfmt, szoutopts)) { - cx_throw("error: cannot encode image"); - } - jas_stream_flush(out); - - } cx_catch { - if (strcmp(message,"")) strncpy(info.szLastError,message,255); - error = 1; - } - - for (x = 0; x < numcmpts; ++x) { if (cmpts[x]) { jas_matrix_destroy(cmpts[x]); } } - jas_cleanup(); - if (image) jas_image_destroy(image); - if (out) jas_stream_close(out); - - return (error==0); -} -//////////////////////////////////////////////////////////////////////////////// -#endif // CXIMAGE_SUPPORT_ENCODE -//////////////////////////////////////////////////////////////////////////////// -#endif // CXIMAGE_SUPPORT_JASPER - diff --git a/src/3rdParty/CxImage/CxImage/ximajas.h b/src/3rdParty/CxImage/CxImage/ximajas.h deleted file mode 100644 index 7225f0132e..0000000000 --- a/src/3rdParty/CxImage/CxImage/ximajas.h +++ /dev/null @@ -1,84 +0,0 @@ -/* - * File: ximajas.h - * Purpose: Jasper Image Class Loader and Writer - */ -/* ========================================================== - * CxImageJAS (c) 12/Apr/2003 Davide Pizzolato - www.xdp.it - * For conditions of distribution and use, see copyright notice in ximage.h - * - * based on JasPer Copyright (c) 2001-2003 Michael David Adams - All rights reserved. - * ========================================================== - */ -#if !defined(__ximaJAS_h) -#define __ximaJAS_h - -#include "ximage.h" - -#if CXIMAGE_SUPPORT_JASPER - -#include "../jasper/include/jasper/jasper.h" - -class CxImageJAS: public CxImage -{ -public: - CxImageJAS(): CxImage((DWORD)0) {} // cast to DWORD - -// bool Load(const TCHAR * imageFileName){ return CxImage::Load(imageFileName,0);} -// bool Save(const TCHAR * imageFileName){ return CxImage::Save(imageFileName,0);} - bool Decode(CxFile * hFile, DWORD imagetype = 0); - bool Decode(FILE *hFile, DWORD imagetype = 0) { CxIOFile file(hFile); return Decode(&file,imagetype); } - -#if CXIMAGE_SUPPORT_ENCODE - bool Encode(CxFile * hFile, DWORD imagetype = 0); - bool Encode(FILE *hFile, DWORD imagetype = 0) { CxIOFile file(hFile); return Encode(&file,imagetype); } -#endif // CXIMAGE_SUPPORT_ENCODE -protected: - - class CxFileJas - { - public: - CxFileJas(CxFile* pFile,jas_stream_t *stream) - { - if (stream->obj_) jas_free(stream->obj_); - stream->obj_ = pFile; - - // - cannot set the stream->ops_->functions here, - // because this overwrites a static structure in the Jasper library. - // This structure is used by Jasper for internal operations too, e.g. tempfile. - // However the ops_ pointer in the stream can be overwritten. - - //stream->ops_->close_ = JasClose; - //stream->ops_->read_ = JasRead; - //stream->ops_->seek_ = JasSeek; - //stream->ops_->write_ = JasWrite; - - jas_stream_CxFile.close_ = JasClose; - jas_stream_CxFile.read_ = JasRead; - jas_stream_CxFile.seek_ = JasSeek; - jas_stream_CxFile.write_ = JasWrite; - - stream->ops_ = &jas_stream_CxFile; - - // - end - } - static int JasRead(jas_stream_obj_t *obj, char *buf, int cnt) - { return ((CxFile*)obj)->Read(buf,1,cnt); } - static int JasWrite(jas_stream_obj_t *obj, char *buf, int cnt) - { return ((CxFile*)obj)->Write(buf,1,cnt); } - static long JasSeek(jas_stream_obj_t *obj, long offset, int origin) - { return ((CxFile*)obj)->Seek(offset,origin); } - static int JasClose(jas_stream_obj_t * /*obj*/) - { return 1; } - - // -private: - jas_stream_ops_t jas_stream_CxFile; - // - end - - }; - -}; - -#endif - -#endif diff --git a/src/3rdParty/CxImage/CxImage/ximajbg.cpp b/src/3rdParty/CxImage/CxImage/ximajbg.cpp deleted file mode 100644 index 25331080da..0000000000 --- a/src/3rdParty/CxImage/CxImage/ximajbg.cpp +++ /dev/null @@ -1,174 +0,0 @@ -/* - * File: ximajbg.cpp - * Purpose: Platform Independent JBG Image Class Loader and Writer - * 18/Aug/2002 Davide Pizzolato - www.xdp.it - * CxImage version 6.0.0 02/Feb/2008 - */ - -#include "ximajbg.h" - -#if CXIMAGE_SUPPORT_JBG - -#include "ximaiter.h" - -#define JBIG_BUFSIZE 8192 - -//////////////////////////////////////////////////////////////////////////////// -#if CXIMAGE_SUPPORT_DECODE -//////////////////////////////////////////////////////////////////////////////// -bool CxImageJBG::Decode(CxFile *hFile) -{ - if (hFile == NULL) return false; - - struct jbg_dec_state jbig_state; - unsigned long xmax = 4294967295UL, ymax = 4294967295UL; - unsigned int len, cnt; - BYTE *buffer,*p; - int result; - - cx_try - { - jbg_dec_init(&jbig_state); - jbg_dec_maxsize(&jbig_state, xmax, ymax); - - buffer = (BYTE*)malloc(JBIG_BUFSIZE); - if (!buffer) cx_throw("Sorry, not enough memory available!"); - - result = JBG_EAGAIN; - do { - len = hFile->Read(buffer, 1, JBIG_BUFSIZE); - if (!len) break; - cnt = 0; - p = buffer; - while (len > 0 && (result == JBG_EAGAIN || result == JBG_EOK)) { - result = jbg_dec_in(&jbig_state, p, len, &cnt); - p += cnt; - len -= cnt; - } - } while (result == JBG_EAGAIN || result == JBG_EOK); - - if (hFile->Error()) - cx_throw("Problem while reading input file"); - if (result != JBG_EOK && result != JBG_EOK_INTR) - cx_throw("Problem with input file"); - - int w, h, bpp, planes, ew; - - w = jbg_dec_getwidth(&jbig_state); - h = jbg_dec_getheight(&jbig_state); - planes = jbg_dec_getplanes(&jbig_state); - bpp = (planes+7)>>3; - ew = (w + 7)>>3; - - if (info.nEscape == -1){ - head.biWidth = w; - head.biHeight= h; - info.dwType = CXIMAGE_FORMAT_JBG; - cx_throw("output dimensions returned"); - } - - switch (planes){ - case 1: - { - BYTE* binary_image = jbg_dec_getimage(&jbig_state, 0); - - if (!Create(w,h,1,CXIMAGE_FORMAT_JBG)) - cx_throw(""); - - SetPaletteColor(0,255,255,255); - SetPaletteColor(1,0,0,0); - - CImageIterator iter(this); - iter.Upset(); - for (int i=0;i>3; - ew = (w + 7)>>3; - - BYTE mask; - RGBQUAD *rgb = GetPalette(); - if (CompareColors(&rgb[0],&rgb[1])<0) mask=255; else mask=0; - - BYTE *buffer = (BYTE*)malloc(ew*h*2); - if (!buffer) { - strcpy(info.szLastError,"Sorry, not enough memory available!"); - return false; - } - - for (y=0; yError()){ - strcpy(info.szLastError,"Problem while writing JBG file"); - return false; - } - - return true; -} -//////////////////////////////////////////////////////////////////////////////// -#endif // CXIMAGE_SUPPORT_JBG - diff --git a/src/3rdParty/CxImage/CxImage/ximajbg.h b/src/3rdParty/CxImage/CxImage/ximajbg.h deleted file mode 100644 index 137eedfa0d..0000000000 --- a/src/3rdParty/CxImage/CxImage/ximajbg.h +++ /dev/null @@ -1,44 +0,0 @@ -/* - * File: ximajbg.h - * Purpose: JBG Image Class Loader and Writer - */ -/* ========================================================== - * CxImageJBG (c) 18/Aug/2002 Davide Pizzolato - www.xdp.it - * For conditions of distribution and use, see copyright notice in ximage.h - * - * based on LIBJBG Copyright (c) 2002, Markus Kuhn - All rights reserved. - * ========================================================== - */ -#if !defined(__ximaJBG_h) -#define __ximaJBG_h - -#include "ximage.h" - -#if CXIMAGE_SUPPORT_JBG - -extern "C" { -#include "../jbig/jbig.h" -}; - -class CxImageJBG: public CxImage -{ -public: - CxImageJBG(): CxImage(CXIMAGE_FORMAT_JBG) {} - -// bool Load(const TCHAR * imageFileName){ return CxImage::Load(imageFileName,CXIMAGE_FORMAT_JBG);} -// bool Save(const TCHAR * imageFileName){ return CxImage::Save(imageFileName,CXIMAGE_FORMAT_JBG);} - bool Decode(CxFile * hFile); - bool Decode(FILE *hFile) { CxIOFile file(hFile); return Decode(&file); } - -#if CXIMAGE_SUPPORT_ENCODE - bool Encode(CxFile * hFile); - bool Encode(FILE *hFile) { CxIOFile file(hFile); return Encode(&file); } -#endif // CXIMAGE_SUPPORT_ENCODE -protected: - static void jbig_data_out(BYTE *buffer, unsigned int len, void *file) - {((CxFile*)file)->Write(buffer,len,1);} -}; - -#endif - -#endif diff --git a/src/3rdParty/CxImage/CxImage/ximajpg.cpp b/src/3rdParty/CxImage/CxImage/ximajpg.cpp deleted file mode 100644 index 30146aa731..0000000000 --- a/src/3rdParty/CxImage/CxImage/ximajpg.cpp +++ /dev/null @@ -1,496 +0,0 @@ -/* - * File: ximajpg.cpp - * Purpose: Platform Independent JPEG Image Class Loader and Writer - * 07/Aug/2001 Davide Pizzolato - www.xdp.it - * CxImage version 6.0.0 02/Feb/2008 - */ - -#include "ximajpg.h" - -#if CXIMAGE_SUPPORT_JPG - -#include "../jpeg/jmorecfg.h" - -#include "ximaiter.h" - -#include - -struct jpg_error_mgr { - struct jpeg_error_mgr pub; /* "public" fields */ - jmp_buf setjmp_buffer; /* for return to caller */ - char* buffer; /* error message */ -}; -typedef jpg_error_mgr *jpg_error_ptr; - -//////////////////////////////////////////////////////////////////////////////// -// Here's the routine that will replace the standard error_exit method: -//////////////////////////////////////////////////////////////////////////////// -static void -ima_jpeg_error_exit (j_common_ptr cinfo) -{ - /* cinfo->err really points to a my_error_mgr struct, so coerce pointer */ - jpg_error_ptr myerr = (jpg_error_ptr) cinfo->err; - /* Create the message */ - myerr->pub.format_message (cinfo, myerr->buffer); - /* Send it to stderr, adding a newline */ - /* Return control to the setjmp point */ - longjmp(myerr->setjmp_buffer, 1); -} -//////////////////////////////////////////////////////////////////////////////// -CxImageJPG::CxImageJPG(): CxImage(CXIMAGE_FORMAT_JPG) -{ -#if CXIMAGEJPG_SUPPORT_EXIF - m_exif = NULL; - memset(&m_exifinfo, 0, sizeof(EXIFINFO)); -#endif -} -//////////////////////////////////////////////////////////////////////////////// -CxImageJPG::~CxImageJPG() -{ -#if CXIMAGEJPG_SUPPORT_EXIF - if (m_exif) delete m_exif; -#endif -} -//////////////////////////////////////////////////////////////////////////////// -#if CXIMAGEJPG_SUPPORT_EXIF -bool CxImageJPG::DecodeExif(CxFile * hFile) -{ - m_exif = new CxExifInfo(&m_exifinfo); - if (m_exif){ - long pos=hFile->Tell(); - m_exif->DecodeExif(hFile); - hFile->Seek(pos,SEEK_SET); - return m_exif->m_exifinfo->IsExif; - } else { - return false; - } -} -#endif //CXIMAGEJPG_SUPPORT_EXIF -//////////////////////////////////////////////////////////////////////////////// -#if CXIMAGE_SUPPORT_DECODE -//////////////////////////////////////////////////////////////////////////////// -bool CxImageJPG::Decode(CxFile * hFile) -{ - - bool is_exif = false; -#if CXIMAGEJPG_SUPPORT_EXIF - is_exif = DecodeExif(hFile); -#endif - - CImageIterator iter(this); - /* This struct contains the JPEG decompression parameters and pointers to - * working space (which is allocated as needed by the JPEG library). - */ - struct jpeg_decompress_struct cinfo; - /* We use our private extension JPEG error handler. */ - struct jpg_error_mgr jerr; - jerr.buffer=info.szLastError; - /* More stuff */ - JSAMPARRAY buffer; /* Output row buffer */ - int row_stride; /* physical row width in output buffer */ - - /* In this example we want to open the input file before doing anything else, - * so that the setjmp() error recovery below can assume the file is open. - * VERY IMPORTANT: use "b" option to fopen() if you are on a machine that - * requires it in order to read binary files. - */ - - /* Step 1: allocate and initialize JPEG decompression object */ - /* We set up the normal JPEG error routines, then override error_exit. */ - cinfo.err = jpeg_std_error(&jerr.pub); - jerr.pub.error_exit = ima_jpeg_error_exit; - - /* Establish the setjmp return context for my_error_exit to use. */ - if (setjmp(jerr.setjmp_buffer)) { - /* If we get here, the JPEG code has signaled an error. - * We need to clean up the JPEG object, close the input file, and return. - */ - jpeg_destroy_decompress(&cinfo); - return 0; - } - /* Now we can initialize the JPEG decompression object. */ - jpeg_create_decompress(&cinfo); - - /* Step 2: specify data source (eg, a file) */ - //jpeg_stdio_src(&cinfo, infile); - CxFileJpg src(hFile); - cinfo.src = &src; - - /* Step 3: read file parameters with jpeg_read_header() */ - (void) jpeg_read_header(&cinfo, TRUE); - - /* Step 4 handle decoder options*/ - if ((GetCodecOption(CXIMAGE_FORMAT_JPG) & DECODE_GRAYSCALE) != 0) - cinfo.out_color_space = JCS_GRAYSCALE; - if ((GetCodecOption(CXIMAGE_FORMAT_JPG) & DECODE_QUANTIZE) != 0) { - cinfo.quantize_colors = TRUE; - cinfo.desired_number_of_colors = GetJpegQuality(); - } - if ((GetCodecOption(CXIMAGE_FORMAT_JPG) & DECODE_DITHER) != 0) - cinfo.dither_mode = m_nDither; - if ((GetCodecOption(CXIMAGE_FORMAT_JPG) & DECODE_ONEPASS) != 0) - cinfo.two_pass_quantize = FALSE; - if ((GetCodecOption(CXIMAGE_FORMAT_JPG) & DECODE_NOSMOOTH) != 0) - cinfo.do_fancy_upsampling = FALSE; - -//: Load true color images as RGB (no quantize) -/* Step 4: set parameters for decompression */ -/* if (cinfo.jpeg_color_space!=JCS_GRAYSCALE) { - * cinfo.quantize_colors = TRUE; - * cinfo.desired_number_of_colors = 128; - *} - */ // - - // Set the scale - cinfo.scale_denom = GetJpegScale(); - - // Borrowed the idea from GIF implementation - if (info.nEscape == -1) { - // Return output dimensions only - jpeg_calc_output_dimensions(&cinfo); - head.biWidth = cinfo.output_width; - head.biHeight = cinfo.output_height; - info.dwType = CXIMAGE_FORMAT_JPG; - jpeg_destroy_decompress(&cinfo); - return true; - } - - /* Step 5: Start decompressor */ - jpeg_start_decompress(&cinfo); - - /* We may need to do some setup of our own at this point before reading - * the data. After jpeg_start_decompress() we have the correct scaled - * output image dimensions available, as well as the output colormap - * if we asked for color quantization. - */ - //Create the image using output dimensions - //Create(cinfo.image_width, cinfo.image_height, 8*cinfo.output_components, CXIMAGE_FORMAT_JPG); - Create(cinfo.output_width, cinfo.output_height, 8*cinfo.output_components, CXIMAGE_FORMAT_JPG); - - if (!pDib) longjmp(jerr.setjmp_buffer, 1); // check if the image has been created - - if (is_exif){ -#if CXIMAGEJPG_SUPPORT_EXIF - if ((m_exifinfo.Xresolution != 0.0) && (m_exifinfo.ResolutionUnit != 0)) - SetXDPI((long)(m_exifinfo.Xresolution/m_exifinfo.ResolutionUnit)); - if ((m_exifinfo.Yresolution != 0.0) && (m_exifinfo.ResolutionUnit != 0)) - SetYDPI((long)(m_exifinfo.Yresolution/m_exifinfo.ResolutionUnit)); -#endif - } else { - switch (cinfo.density_unit) { - case 0: // [andy] fix for aspect ratio... - if((cinfo.Y_density > 0) && (cinfo.X_density > 0)){ - SetYDPI((long)(GetXDPI()*(float(cinfo.Y_density)/float(cinfo.X_density)))); - } - break; - case 2: // [andy] fix: cinfo.X/Y_density is pixels per centimeter - SetXDPI((long)floor(cinfo.X_density * 2.54 + 0.5)); - SetYDPI((long)floor(cinfo.Y_density * 2.54 + 0.5)); - break; - default: - SetXDPI(cinfo.X_density); - SetYDPI(cinfo.Y_density); - } - } - - if (cinfo.out_color_space==JCS_GRAYSCALE){ - SetGrayPalette(); - head.biClrUsed =256; - } else { - if (cinfo.quantize_colors){ - SetPalette(cinfo.actual_number_of_colors, cinfo.colormap[0], cinfo.colormap[1], cinfo.colormap[2]); - head.biClrUsed=cinfo.actual_number_of_colors; - } else { - head.biClrUsed=0; - } - } - - /* JSAMPLEs per row in output buffer */ - row_stride = cinfo.output_width * cinfo.output_components; - - /* Make a one-row-high sample array that will go away when done with image */ - buffer = (*cinfo.mem->alloc_sarray) - ((j_common_ptr) &cinfo, JPOOL_IMAGE, row_stride, 1); - - /* Step 6: while (scan lines remain to be read) */ - /* jpeg_read_scanlines(...); */ - /* Here we use the library's state variable cinfo.output_scanline as the - * loop counter, so that we don't have to keep track ourselves. - */ - iter.Upset(); - while (cinfo.output_scanline < cinfo.output_height) { - - if (info.nEscape) longjmp(jerr.setjmp_buffer, 1); // - cancel decoding - - (void) jpeg_read_scanlines(&cinfo, buffer, 1); - // info.nProgress = (long)(100*cinfo.output_scanline/cinfo.output_height); - // Step 6a: CMYK->RGB */ - if ((cinfo.num_components==4)&&(cinfo.quantize_colors==FALSE)){ - BYTE k,*dst,*src; - dst=iter.GetRow(); - src=buffer[0]; - for(long x3=0,x4=0; x3<(long)info.dwEffWidth && x4 Step 7A: Swap red and blue components - // not necessary if swapped red and blue definition in jmorecfg.h;ln322 - if ((cinfo.num_components==3)&&(cinfo.quantize_colors==FALSE)){ - BYTE* r0=GetBits(); - for(long y=0;y - cancel decoding - RGBtoBGR(r0,3*head.biWidth); - r0+=info.dwEffWidth; - } - } - - /* Step 8: Release JPEG decompression object */ - /* This is an important step since it will release a good deal of memory. */ - jpeg_destroy_decompress(&cinfo); - - /* At this point you may want to check to see whether any corrupt-data - * warnings occurred (test whether jerr.pub.num_warnings is nonzero). - */ - - /* And we're done! */ - return true; -} -//////////////////////////////////////////////////////////////////////////////// -#endif //CXIMAGE_SUPPORT_DECODE -//////////////////////////////////////////////////////////////////////////////// -#if CXIMAGE_SUPPORT_ENCODE -//////////////////////////////////////////////////////////////////////////////// -bool CxImageJPG::Encode(CxFile * hFile) -{ - if (EncodeSafeCheck(hFile)) return false; - - if (head.biClrUsed!=0 && !IsGrayScale()){ - strcpy(info.szLastError,"JPEG can save only RGB or GreyScale images"); - return false; - } - - // necessary for EXIF, and for roll backs - long pos=hFile->Tell(); - - /* This struct contains the JPEG compression parameters and pointers to - * working space (which is allocated as needed by the JPEG library). - * It is possible to have several such structures, representing multiple - * compression/decompression processes, in existence at once. We refer - * to any one struct (and its associated working data) as a "JPEG object". - */ - struct jpeg_compress_struct cinfo; - /* This struct represents a JPEG error handler. It is declared separately - * because applications often want to supply a specialized error handler - * (see the second half of this file for an example). But here we just - * take the easy way out and use the standard error handler, which will - * print a message on stderr and call exit() if compression fails. - * Note that this struct must live as long as the main JPEG parameter - * struct, to avoid dangling-pointer problems. - */ - //struct jpeg_error_mgr jerr; - /* We use our private extension JPEG error handler. */ - struct jpg_error_mgr jerr; - jerr.buffer=info.szLastError; - /* More stuff */ - int row_stride; /* physical row width in image buffer */ - JSAMPARRAY buffer; /* Output row buffer */ - - /* Step 1: allocate and initialize JPEG compression object */ - /* We have to set up the error handler first, in case the initialization - * step fails. (Unlikely, but it could happen if you are out of memory.) - * This routine fills in the contents of struct jerr, and returns jerr's - * address which we place into the link field in cinfo. - */ - //cinfo.err = jpeg_std_error(&jerr); - /* We set up the normal JPEG error routines, then override error_exit. */ - cinfo.err = jpeg_std_error(&jerr.pub); - jerr.pub.error_exit = ima_jpeg_error_exit; - - /* Establish the setjmp return context for my_error_exit to use. */ - if (setjmp(jerr.setjmp_buffer)) { - /* If we get here, the JPEG code has signaled an error. - * We need to clean up the JPEG object, close the input file, and return. - */ - strcpy(info.szLastError, jerr.buffer); // - jpeg_destroy_compress(&cinfo); - return 0; - } - - /* Now we can initialize the JPEG compression object. */ - jpeg_create_compress(&cinfo); - /* Step 2: specify data destination (eg, a file) */ - /* Note: steps 2 and 3 can be done in either order. */ - /* Here we use the library-supplied code to send compressed data to a - * stdio stream. You can also write your own code to do something else. - * VERY IMPORTANT: use "b" option to fopen() if you are on a machine that - * requires it in order to write binary files. - */ - - //jpeg_stdio_dest(&cinfo, outfile); - CxFileJpg dest(hFile); - cinfo.dest = &dest; - - /* Step 3: set parameters for compression */ - /* First we supply a description of the input image. - * Four fields of the cinfo struct must be filled in: - */ - cinfo.image_width = GetWidth(); // image width and height, in pixels - cinfo.image_height = GetHeight(); - - if (IsGrayScale()){ - cinfo.input_components = 1; // # of color components per pixel - cinfo.in_color_space = JCS_GRAYSCALE; /* colorspace of input image */ - } else { - cinfo.input_components = 3; // # of color components per pixel - cinfo.in_color_space = JCS_RGB; /* colorspace of input image */ - } - - /* Now use the library's routine to set default compression parameters. - * (You must set at least cinfo.in_color_space before calling this, - * since the defaults depend on the source color space.) - */ - jpeg_set_defaults(&cinfo); - /* Now you can set any non-default parameters you wish to. - * Here we just illustrate the use of quality (quantization table) scaling: - */ - -//#ifdef C_ARITH_CODING_SUPPORTED - if ((GetCodecOption(CXIMAGE_FORMAT_JPG) & ENCODE_ARITHMETIC) != 0) - cinfo.arith_code = TRUE; -//#endif - -//#ifdef ENTROPY_OPT_SUPPORTED - if ((GetCodecOption(CXIMAGE_FORMAT_JPG) & ENCODE_OPTIMIZE) != 0) - cinfo.optimize_coding = TRUE; -//#endif - - if ((GetCodecOption(CXIMAGE_FORMAT_JPG) & ENCODE_GRAYSCALE) != 0) - jpeg_set_colorspace(&cinfo, JCS_GRAYSCALE); - - if ((GetCodecOption(CXIMAGE_FORMAT_JPG) & ENCODE_SMOOTHING) != 0) - cinfo.smoothing_factor = m_nSmoothing; - - jpeg_set_quality(&cinfo, GetJpegQuality(), (GetCodecOption(CXIMAGE_FORMAT_JPG) & ENCODE_BASELINE) != 0); - -//#ifdef C_PROGRESSIVE_SUPPORTED - if ((GetCodecOption(CXIMAGE_FORMAT_JPG) & ENCODE_PROGRESSIVE) != 0) - jpeg_simple_progression(&cinfo); -//#endif - -#ifdef C_LOSSLESS_SUPPORTED - if ((GetCodecOption(CXIMAGE_FORMAT_JPG) & ENCODE_LOSSLESS) != 0) - jpeg_simple_lossless(&cinfo, m_nPredictor, m_nPointTransform); -#endif - - //SetCodecOption(ENCODE_SUBSAMPLE_444 | GetCodecOption(CXIMAGE_FORMAT_JPG),CXIMAGE_FORMAT_JPG); - - // 2x2, 1x1, 1x1 (4:1:1) : High (default sub sampling) - cinfo.comp_info[0].h_samp_factor = 2; - cinfo.comp_info[0].v_samp_factor = 2; - cinfo.comp_info[1].h_samp_factor = 1; - cinfo.comp_info[1].v_samp_factor = 1; - cinfo.comp_info[2].h_samp_factor = 1; - cinfo.comp_info[2].v_samp_factor = 1; - - if ((GetCodecOption(CXIMAGE_FORMAT_JPG) & ENCODE_SUBSAMPLE_422) != 0){ - // 2x1, 1x1, 1x1 (4:2:2) : Medium - cinfo.comp_info[0].h_samp_factor = 2; - cinfo.comp_info[0].v_samp_factor = 1; - cinfo.comp_info[1].h_samp_factor = 1; - cinfo.comp_info[1].v_samp_factor = 1; - cinfo.comp_info[2].h_samp_factor = 1; - cinfo.comp_info[2].v_samp_factor = 1; - } - - if ((GetCodecOption(CXIMAGE_FORMAT_JPG) & ENCODE_SUBSAMPLE_444) != 0){ - // 1x1 1x1 1x1 (4:4:4) : None - cinfo.comp_info[0].h_samp_factor = 1; - cinfo.comp_info[0].v_samp_factor = 1; - cinfo.comp_info[1].h_samp_factor = 1; - cinfo.comp_info[1].v_samp_factor = 1; - cinfo.comp_info[2].h_samp_factor = 1; - cinfo.comp_info[2].v_samp_factor = 1; - } - - cinfo.density_unit=1; - cinfo.X_density=(unsigned short)GetXDPI(); - cinfo.Y_density=(unsigned short)GetYDPI(); - - /* Step 4: Start compressor */ - /* TRUE ensures that we will write a complete interchange-JPEG file. - * Pass TRUE unless you are very sure of what you're doing. - */ - jpeg_start_compress(&cinfo, TRUE); - - /* Step 5: while (scan lines remain to be written) */ - /* jpeg_write_scanlines(...); */ - /* Here we use the library's state variable cinfo.next_scanline as the - * loop counter, so that we don't have to keep track ourselves. - * To keep things simple, we pass one scanline per call; you can pass - * more if you wish, though. - */ - row_stride = info.dwEffWidth; /* JSAMPLEs per row in image_buffer */ - - // "8+row_stride" fix heap deallocation problem during debug??? - buffer = (*cinfo.mem->alloc_sarray) - ((j_common_ptr) &cinfo, JPOOL_IMAGE, 8+row_stride, 1); - - CImageIterator iter(this); - - iter.Upset(); - while (cinfo.next_scanline < cinfo.image_height) { - // info.nProgress = (long)(100*cinfo.next_scanline/cinfo.image_height); - iter.GetRow(buffer[0], row_stride); - // not necessary if swapped red and blue definition in jmorecfg.h;ln322 - if (head.biClrUsed==0){ // swap R & B for RGB images - RGBtoBGR(buffer[0], row_stride); // Lance : 1998/09/01 : Bug ID: EXP-2.1.1-9 - } - iter.PrevRow(); - (void) jpeg_write_scanlines(&cinfo, buffer, 1); - } - - /* Step 6: Finish compression */ - jpeg_finish_compress(&cinfo); - - /* Step 7: release JPEG compression object */ - /* This is an important step since it will release a good deal of memory. */ - jpeg_destroy_compress(&cinfo); - - -#if CXIMAGEJPG_SUPPORT_EXIF - if (m_exif && m_exif->m_exifinfo->IsExif){ - // discard useless sections (if any) read from original image - m_exif->DiscardAllButExif(); - // read new created image, to split the sections - hFile->Seek(pos,SEEK_SET); - m_exif->DecodeExif(hFile,EXIF_READ_IMAGE); - // save back the image, adding EXIF section - hFile->Seek(pos,SEEK_SET); - m_exif->EncodeExif(hFile); - } -#endif - - - /* And we're done! */ - return true; -} -//////////////////////////////////////////////////////////////////////////////// -#endif // CXIMAGE_SUPPORT_ENCODE -//////////////////////////////////////////////////////////////////////////////// -#endif // CXIMAGE_SUPPORT_JPG - diff --git a/src/3rdParty/CxImage/CxImage/ximajpg.h b/src/3rdParty/CxImage/CxImage/ximajpg.h deleted file mode 100644 index 899c6bc123..0000000000 --- a/src/3rdParty/CxImage/CxImage/ximajpg.h +++ /dev/null @@ -1,317 +0,0 @@ -/* - * File: ximajpg.h - * Purpose: JPG Image Class Loader and Writer - */ -/* ========================================================== - * CxImageJPG (c) 07/Aug/2001 Davide Pizzolato - www.xdp.it - * For conditions of distribution and use, see copyright notice in ximage.h - * - * Special thanks to Troels Knakkergaard for new features, enhancements and bugfixes - * - * Special thanks to Chris Shearer Cooper for CxFileJpg tips & code - * - * EXIF support based on jhead-1.8 by Matthias Wandel - * - * original CImageJPG and CImageIterator implementation are: - * Copyright: (c) 1995, Alejandro Aguilar Sierra - * - * This software is based in part on the work of the Independent JPEG Group. - * Copyright (C) 1991-1998, Thomas G. Lane. - * ========================================================== - */ -#if !defined(__ximaJPEG_h) -#define __ximaJPEG_h - -#include "ximage.h" - -#if CXIMAGE_SUPPORT_JPG - -#define CXIMAGEJPG_SUPPORT_EXIF 1 - -extern "C" { - #include "../jpeg/jpeglib.h" - #include "../jpeg/jerror.h" -} - -class DLL_EXP CxImageJPG: public CxImage -{ -public: - CxImageJPG(); - ~CxImageJPG(); - -// bool Load(const TCHAR * imageFileName){ return CxImage::Load(imageFileName,CXIMAGE_FORMAT_JPG);} -// bool Save(const TCHAR * imageFileName){ return CxImage::Save(imageFileName,CXIMAGE_FORMAT_JPG);} - bool Decode(CxFile * hFile); - bool Decode(FILE *hFile) { CxIOFile file(hFile); return Decode(&file); } - -#if CXIMAGE_SUPPORT_ENCODE - bool Encode(CxFile * hFile); - bool Encode(FILE *hFile) { CxIOFile file(hFile); return Encode(&file); } -#endif // CXIMAGE_SUPPORT_ENCODE - -/* - * EXIF support based on jhead-1.8 by Matthias Wandel - */ - -#if CXIMAGEJPG_SUPPORT_EXIF - -#define MAX_COMMENT 1000 -#define MAX_SECTIONS 20 - -typedef struct tag_ExifInfo { - char Version [5]; - char CameraMake [32]; - char CameraModel [40]; - char DateTime [20]; - int Height, Width; - int Orientation; - int IsColor; - int Process; - int FlashUsed; - float FocalLength; - float ExposureTime; - float ApertureFNumber; - float Distance; - float CCDWidth; - float ExposureBias; - int Whitebalance; - int MeteringMode; - int ExposureProgram; - int ISOequivalent; - int CompressionLevel; - float FocalplaneXRes; - float FocalplaneYRes; - float FocalplaneUnits; - float Xresolution; - float Yresolution; - float ResolutionUnit; - float Brightness; - char Comments[MAX_COMMENT]; - - unsigned char * ThumbnailPointer; /* Pointer at the thumbnail */ - unsigned ThumbnailSize; /* Size of thumbnail. */ - - bool IsExif; -} EXIFINFO; - -//-------------------------------------------------------------------------- -// JPEG markers consist of one or more 0xFF bytes, followed by a marker -// code byte (which is not an FF). Here are the marker codes of interest -// in this program. (See jdmarker.c for a more complete list.) -//-------------------------------------------------------------------------- - -#define M_SOF0 0xC0 // Start Of Frame N -#define M_SOF1 0xC1 // N indicates which compression process -#define M_SOF2 0xC2 // Only SOF0-SOF2 are now in common use -#define M_SOF3 0xC3 -#define M_SOF5 0xC5 // NB: codes C4 and CC are NOT SOF markers -#define M_SOF6 0xC6 -#define M_SOF7 0xC7 -#define M_SOF9 0xC9 -#define M_SOF10 0xCA -#define M_SOF11 0xCB -#define M_SOF13 0xCD -#define M_SOF14 0xCE -#define M_SOF15 0xCF -#define M_SOI 0xD8 // Start Of Image (beginning of datastream) -#define M_EOI 0xD9 // End Of Image (end of datastream) -#define M_SOS 0xDA // Start Of Scan (begins compressed data) -#define M_JFIF 0xE0 // Jfif marker -#define M_EXIF 0xE1 // Exif marker -#define M_COM 0xFE // COMment - -#define PSEUDO_IMAGE_MARKER 0x123; // Extra value. - -#define EXIF_READ_EXIF 0x01 -#define EXIF_READ_IMAGE 0x02 -#define EXIF_READ_ALL 0x03 - -class DLL_EXP CxExifInfo -{ - -typedef struct tag_Section_t{ - BYTE* Data; - int Type; - unsigned Size; -} Section_t; - -public: - EXIFINFO* m_exifinfo; - char m_szLastError[256]; - CxExifInfo(EXIFINFO* info = NULL); - ~CxExifInfo(); - bool DecodeExif(CxFile * hFile, int nReadMode = EXIF_READ_EXIF); - bool EncodeExif(CxFile * hFile); - void DiscardAllButExif(); -protected: - bool process_EXIF(unsigned char * CharBuf, unsigned int length); - void process_COM (const BYTE * Data, int length); - void process_SOFn (const BYTE * Data, int marker); - int Get16u(void * Short); - int Get16m(void * Short); - long Get32s(void * Long); - unsigned long Get32u(void * Long); - double ConvertAnyFormat(void * ValuePtr, int Format); - void* FindSection(int SectionType); - bool ProcessExifDir(unsigned char * DirStart, unsigned char * OffsetBase, unsigned ExifLength, - EXIFINFO * const pInfo, unsigned char ** const LastExifRefdP, int NestingLevel=0); - int ExifImageWidth; - int MotorolaOrder; - Section_t Sections[MAX_SECTIONS]; - int SectionsRead; - bool freeinfo; -}; - - CxExifInfo* m_exif; - EXIFINFO m_exifinfo; - bool DecodeExif(CxFile * hFile); - bool DecodeExif(FILE * hFile) { CxIOFile file(hFile); return DecodeExif(&file); } - -#endif //CXIMAGEJPG_SUPPORT_EXIF - -//////////////////////////////////////////////////////////////////////////////////////// -////////////////////// C x F i l e J p g //////////////////////////////// -//////////////////////////////////////////////////////////////////////////////////////// - -// thanks to Chris Shearer Cooper -class CxFileJpg : public jpeg_destination_mgr, public jpeg_source_mgr - { -public: - enum { eBufSize = 4096 }; - - CxFileJpg(CxFile* pFile) - { - m_pFile = pFile; - - init_destination = InitDestination; - empty_output_buffer = EmptyOutputBuffer; - term_destination = TermDestination; - - init_source = InitSource; - fill_input_buffer = FillInputBuffer; - skip_input_data = SkipInputData; - resync_to_restart = jpeg_resync_to_restart; // use default method - term_source = TermSource; - next_input_byte = NULL; //* => next byte to read from buffer - bytes_in_buffer = 0; //* # of bytes remaining in buffer - - m_pBuffer = new unsigned char[eBufSize]; - } - ~CxFileJpg() - { - delete [] m_pBuffer; - } - - static void InitDestination(j_compress_ptr cinfo) - { - CxFileJpg* pDest = (CxFileJpg*)cinfo->dest; - pDest->next_output_byte = pDest->m_pBuffer; - pDest->free_in_buffer = eBufSize; - } - - static boolean EmptyOutputBuffer(j_compress_ptr cinfo) - { - CxFileJpg* pDest = (CxFileJpg*)cinfo->dest; - if (pDest->m_pFile->Write(pDest->m_pBuffer,1,eBufSize)!=(size_t)eBufSize) - ERREXIT(cinfo, JERR_FILE_WRITE); - pDest->next_output_byte = pDest->m_pBuffer; - pDest->free_in_buffer = eBufSize; - return TRUE; - } - - static void TermDestination(j_compress_ptr cinfo) - { - CxFileJpg* pDest = (CxFileJpg*)cinfo->dest; - size_t datacount = eBufSize - pDest->free_in_buffer; - /* Write any data remaining in the buffer */ - if (datacount > 0) { - if (!pDest->m_pFile->Write(pDest->m_pBuffer,1,datacount)) - ERREXIT(cinfo, JERR_FILE_WRITE); - } - pDest->m_pFile->Flush(); - /* Make sure we wrote the output file OK */ - if (pDest->m_pFile->Error()) ERREXIT(cinfo, JERR_FILE_WRITE); - return; - } - - static void InitSource(j_decompress_ptr cinfo) - { - CxFileJpg* pSource = (CxFileJpg*)cinfo->src; - pSource->m_bStartOfFile = TRUE; - } - - static boolean FillInputBuffer(j_decompress_ptr cinfo) - { - size_t nbytes; - CxFileJpg* pSource = (CxFileJpg*)cinfo->src; - nbytes = pSource->m_pFile->Read(pSource->m_pBuffer,1,eBufSize); - if (nbytes <= 0){ - if (pSource->m_bStartOfFile) //* Treat empty input file as fatal error - ERREXIT(cinfo, JERR_INPUT_EMPTY); - WARNMS(cinfo, JWRN_JPEG_EOF); - // Insert a fake EOI marker - pSource->m_pBuffer[0] = (JOCTET) 0xFF; - pSource->m_pBuffer[1] = (JOCTET) JPEG_EOI; - nbytes = 2; - } - pSource->next_input_byte = pSource->m_pBuffer; - pSource->bytes_in_buffer = nbytes; - pSource->m_bStartOfFile = FALSE; - return TRUE; - } - - static void SkipInputData(j_decompress_ptr cinfo, long num_bytes) - { - CxFileJpg* pSource = (CxFileJpg*)cinfo->src; - if (num_bytes > 0){ - while (num_bytes > (long)pSource->bytes_in_buffer){ - num_bytes -= (long)pSource->bytes_in_buffer; - FillInputBuffer(cinfo); - // note we assume that fill_input_buffer will never return FALSE, - // so suspension need not be handled. - } - pSource->next_input_byte += (size_t) num_bytes; - pSource->bytes_in_buffer -= (size_t) num_bytes; - } - } - - static void TermSource(j_decompress_ptr /*cinfo*/) - { - return; - } -protected: - CxFile *m_pFile; - unsigned char *m_pBuffer; - bool m_bStartOfFile; -}; - -public: - enum CODEC_OPTION - { - ENCODE_BASELINE = 0x1, - ENCODE_ARITHMETIC = 0x2, - ENCODE_GRAYSCALE = 0x4, - ENCODE_OPTIMIZE = 0x8, - ENCODE_PROGRESSIVE = 0x10, - ENCODE_LOSSLESS = 0x20, - ENCODE_SMOOTHING = 0x40, - DECODE_GRAYSCALE = 0x80, - DECODE_QUANTIZE = 0x100, - DECODE_DITHER = 0x200, - DECODE_ONEPASS = 0x400, - DECODE_NOSMOOTH = 0x800, - ENCODE_SUBSAMPLE_422 = 0x1000, - ENCODE_SUBSAMPLE_444 = 0x2000 - }; - - int m_nPredictor; - int m_nPointTransform; - int m_nSmoothing; - int m_nQuantize; - J_DITHER_MODE m_nDither; - -}; - -#endif - -#endif diff --git a/src/3rdParty/CxImage/CxImage/ximalpha.cpp b/src/3rdParty/CxImage/CxImage/ximalpha.cpp deleted file mode 100644 index 8233dcbd58..0000000000 --- a/src/3rdParty/CxImage/CxImage/ximalpha.cpp +++ /dev/null @@ -1,365 +0,0 @@ -// xImalpha.cpp : Alpha channel functions -/* 07/08/2001 v1.00 - Davide Pizzolato - www.xdp.it - * CxImage version 6.0.0 02/Feb/2008 - */ - -#include "ximage.h" - -#if CXIMAGE_SUPPORT_ALPHA - -//////////////////////////////////////////////////////////////////////////////// -/** - * \sa AlphaSetMax - */ -BYTE CxImage::AlphaGetMax() const -{ - return info.nAlphaMax; -} -//////////////////////////////////////////////////////////////////////////////// -/** - * Sets global Alpha (opacity) value applied to the whole image, - * valid only for painting functions. - * \param nAlphaMax: can be from 0 to 255 - */ -void CxImage::AlphaSetMax(BYTE nAlphaMax) -{ - info.nAlphaMax=nAlphaMax; -} -//////////////////////////////////////////////////////////////////////////////// -/** - * Checks if the image has a valid alpha channel. - */ -bool CxImage::AlphaIsValid() -{ - return pAlpha!=0; -} -//////////////////////////////////////////////////////////////////////////////// -/** - * Enables the alpha palette, so the Draw() function changes its behavior. - */ -void CxImage::AlphaPaletteEnable(bool enable) -{ - info.bAlphaPaletteEnabled=enable; -} -//////////////////////////////////////////////////////////////////////////////// -/** - * True if the alpha palette is enabled for painting. - */ -bool CxImage::AlphaPaletteIsEnabled() -{ - return info.bAlphaPaletteEnabled; -} -//////////////////////////////////////////////////////////////////////////////// -/** - * Sets the alpha channel to full transparent. AlphaSet(0) has the same effect - */ -void CxImage::AlphaClear() -{ - if (pAlpha) memset(pAlpha,0,head.biWidth * head.biHeight); -} -//////////////////////////////////////////////////////////////////////////////// -/** - * Sets the alpha level for the whole image. - * \param level : from 0 (transparent) to 255 (opaque) - */ -void CxImage::AlphaSet(BYTE level) -{ - if (pAlpha) memset(pAlpha,level,head.biWidth * head.biHeight); -} -//////////////////////////////////////////////////////////////////////////////// -/** - * Allocates an empty (opaque) alpha channel. - */ -bool CxImage::AlphaCreate() -{ - if (pAlpha==NULL) { - pAlpha = (BYTE*)malloc(head.biWidth * head.biHeight); - if (pAlpha) memset(pAlpha,255,head.biWidth * head.biHeight); - } - return (pAlpha!=0); -} -//////////////////////////////////////////////////////////////////////////////// -void CxImage::AlphaDelete() -{ - if (pAlpha) { free(pAlpha); pAlpha=0; } -} -//////////////////////////////////////////////////////////////////////////////// -void CxImage::AlphaInvert() -{ - if (pAlpha) { - BYTE *iSrc=pAlpha; - long n=head.biHeight*head.biWidth; - for(long i=0; i < n; i++){ - *iSrc=(BYTE)~(*(iSrc)); - iSrc++; - } - } -} -//////////////////////////////////////////////////////////////////////////////// -/** - * Imports an existing alpa channel from another image with the same width and height. - */ -bool CxImage::AlphaCopy(CxImage &from) -{ - if (from.pAlpha == NULL || head.biWidth != from.head.biWidth || head.biHeight != from.head.biHeight) return false; - if (pAlpha==NULL) pAlpha = (BYTE*)malloc(head.biWidth * head.biHeight); - if (pAlpha==NULL) return false; - memcpy(pAlpha,from.pAlpha,head.biWidth * head.biHeight); - info.nAlphaMax=from.info.nAlphaMax; - return true; -} -//////////////////////////////////////////////////////////////////////////////// -/** - * Creates the alpha channel from a gray scale image. - */ -bool CxImage::AlphaSet(CxImage &from) -{ - if (!from.IsGrayScale() || head.biWidth != from.head.biWidth || head.biHeight != from.head.biHeight) return false; - if (pAlpha==NULL) pAlpha = (BYTE*)malloc(head.biWidth * head.biHeight); - BYTE* src = from.info.pImage; - BYTE* dst = pAlpha; - if (src==NULL || dst==NULL) return false; - for (long y=0; y>8); - c.rgbGreen = (BYTE)((c.rgbGreen * a + a1 * info.nBkgndColor.rgbGreen)>>8); - c.rgbRed = (BYTE)((c.rgbRed * a + a1 * info.nBkgndColor.rgbRed)>>8); - BlindSetPixelColor(x,y,c); - } - } - AlphaDelete(); - } else { - CxImage tmp(head.biWidth,head.biHeight,24); - if (!tmp.IsValid()){ - strcpy(info.szLastError,tmp.GetLastError()); - return; - } - - for(long y=0; y>8); - c.rgbGreen = (BYTE)((c.rgbGreen * a + a1 * info.nBkgndColor.rgbGreen)>>8); - c.rgbRed = (BYTE)((c.rgbRed * a + a1 * info.nBkgndColor.rgbRed)>>8); - tmp.BlindSetPixelColor(x,y,c); - } - } - Transfer(tmp); - } - return; -} -//////////////////////////////////////////////////////////////////////////////// -bool CxImage::AlphaFlip() -{ - if (!pAlpha) return false; - - BYTE *buff = (BYTE*)malloc(head.biWidth); - if (!buff) return false; - - BYTE *iSrc,*iDst; - iSrc = pAlpha + (head.biHeight-1)*head.biWidth; - iDst = pAlpha; - for (long i=0; i<(head.biHeight/2); ++i) - { - memcpy(buff, iSrc, head.biWidth); - memcpy(iSrc, iDst, head.biWidth); - memcpy(iDst, buff, head.biWidth); - iSrc-=head.biWidth; - iDst+=head.biWidth; - } - - free(buff); - - return true; -} -//////////////////////////////////////////////////////////////////////////////// -bool CxImage::AlphaMirror() -{ - if (!pAlpha) return false; - BYTE* pAlpha2 = (BYTE*)malloc(head.biWidth * head.biHeight); - if (!pAlpha2) return false; - BYTE *iSrc,*iDst; - long wdt=head.biWidth-1; - iSrc=pAlpha + wdt; - iDst=pAlpha2; - for(long y=0; y < head.biHeight; y++){ - for(long x=0; x <= wdt; x++) - *(iDst+x)=*(iSrc-x); - iSrc+=head.biWidth; - iDst+=head.biWidth; - } - free(pAlpha); - pAlpha=pAlpha2; - return true; -} -//////////////////////////////////////////////////////////////////////////////// -/** - * Exports the alpha channel in a 8bpp grayscale image. - */ -bool CxImage::AlphaSplit(CxImage *dest) -{ - if (!pAlpha || !dest) return false; - - CxImage tmp(head.biWidth,head.biHeight,8); - if (!tmp.IsValid()){ - strcpy(info.szLastError,tmp.GetLastError()); - return false; - } - - for(long y=0; yTransfer(tmp); - - return true; -} -//////////////////////////////////////////////////////////////////////////////// -/** - * Exports the alpha palette channel in a 8bpp grayscale image. - */ -bool CxImage::AlphaPaletteSplit(CxImage *dest) -{ - if (!AlphaPaletteIsValid() || !dest) return false; - - CxImage tmp(head.biWidth,head.biHeight,8); - if (!tmp.IsValid()){ - strcpy(info.szLastError,tmp.GetLastError()); - return false; - } - - for(long y=0; yTransfer(tmp); - - return true; -} -//////////////////////////////////////////////////////////////////////////////// -/** - * Merge in the alpha layer the transparent color mask - * (previously set with SetTransColor or SetTransIndex) - */ -bool CxImage::AlphaFromTransparency() -{ - if (!IsValid() || !IsTransparent()) - return false; - - AlphaCreate(); - - for(long y=0; y info.nNumLayers ) position = info.nNumLayers; - - CxImage** ptmp = new CxImage*[info.nNumLayers + 1]; - if (ptmp==0) return false; - - int i=0; - for (int n=0; ninfo.pParent = this; - } else { - free(ptmp); - return false; - } - - info.nNumLayers++; - delete [] ppLayers; - ppLayers = ptmp; - return true; -} -//////////////////////////////////////////////////////////////////////////////// -/** - * Deletes a layer. If position is less than 0, the last layer will be deleted - */ -bool CxImage::LayerDelete(long position) -{ - if ( position >= info.nNumLayers ) return false; - if ( position < 0) position = info.nNumLayers - 1; - if ( position < 0) return false; - - if (info.nNumLayers>1){ - - CxImage** ptmp = new CxImage*[info.nNumLayers - 1]; - if (ptmp==0) return false; - - int i=0; - for (int n=0; n= info.nNumLayers ) return NULL; - if ( position < 0) position = info.nNumLayers - 1; - return ppLayers[position]; -} -//////////////////////////////////////////////////////////////////////////////// -#endif //CXIMAGE_SUPPORT_LAYERS diff --git a/src/3rdParty/CxImage/CxImage/ximamng.cpp b/src/3rdParty/CxImage/CxImage/ximamng.cpp deleted file mode 100644 index cc86f4e600..0000000000 --- a/src/3rdParty/CxImage/CxImage/ximamng.cpp +++ /dev/null @@ -1,430 +0,0 @@ -/* - * File: ximamng.cpp - * Purpose: Platform Independent MNG Image Class Loader and Writer - * Author: 07/Aug/2001 Davide Pizzolato - www.xdp.it - * CxImage version 6.0.0 02/Feb/2008 - */ - -#include "ximamng.h" - -#if CXIMAGE_SUPPORT_MNG - -//////////////////////////////////////////////////////////////////////////////// -// callbacks for the mng decoder: -//////////////////////////////////////////////////////////////////////////////// - -//////////////////////////////////////////////////////////////////////////////// -// memory allocation; data must be zeroed -static mng_ptr -mymngalloc( mng_uint32 size ) -{ - return (mng_ptr)calloc(1, size); -} - -//////////////////////////////////////////////////////////////////////////////// -// memory deallocation -static void mymngfree(mng_ptr p, mng_uint32 size) -{ - free(p); -} - -//////////////////////////////////////////////////////////////////////////////// -// Stream open/close: -// since the user is responsible for opening and closing the file, -// we leave the default implementation open -static mng_bool mymngopenstream(mng_handle mng) { return MNG_TRUE; } -static mng_bool mymngopenstreamwrite(mng_handle mng) { return MNG_TRUE; } -static mng_bool mymngclosestream(mng_handle mng) { return MNG_TRUE; } - -//////////////////////////////////////////////////////////////////////////////// -// feed data to the decoder -static mng_bool mymngreadstream(mng_handle mng, mng_ptr buffer, mng_uint32 size, mng_uint32 *bytesread) -{ - mngstuff *mymng = (mngstuff *)mng_get_userdata(mng); - // read the requested amount of data from the file - *bytesread = mymng->file->Read( buffer, sizeof(BYTE), size); - return MNG_TRUE; -} - -//////////////////////////////////////////////////////////////////////////////// -static mng_bool mymngwritestream (mng_handle mng, mng_ptr pBuf, mng_uint32 iSize, mng_uint32 *iWritten) -{ - mngstuff *mymng = (mngstuff *)mng_get_userdata(mng); - // write it - *iWritten = mymng->file->Write (pBuf, 1, iSize); - return MNG_TRUE; -} - -//////////////////////////////////////////////////////////////////////////////// -// the header's been read. set up the display stuff -static mng_bool mymngprocessheader( mng_handle mng, mng_uint32 width, mng_uint32 height ) -{ - // normally the image buffer is allocated here, - // but in this module we don't know nothing about - // the final environment. - - mngstuff *mymng = (mngstuff *)mng_get_userdata(mng); - - mymng->width = width; - mymng->height = height; - mymng->bpp = 24; - mymng->effwdt = ((((width * mymng->bpp) + 31) >> 5) << 2); - - if (mng->bUseBKGD){ - mymng->nBkgndIndex = 0; - mymng->nBkgndColor.rgbRed = mng->iBGred >> 8; - mymng->nBkgndColor.rgbGreen =mng->iBGgreen >> 8; - mymng->nBkgndColor.rgbBlue = mng->iBGblue >> 8; - } - - mymng->image = (BYTE*)malloc(height * mymng->effwdt); - - // tell the mng decoder about our bit-depth choice -#if CXIMAGE_SUPPORT_ALPHA - mng_set_canvasstyle( mng, MNG_CANVAS_RGB8_A8 ); - mymng->alpha = (BYTE*)malloc(height * width); -#else - mng_set_canvasstyle( mng, MNG_CANVAS_BGR8); - mymng->alpha = NULL; -#endif - return MNG_TRUE; -} - -//////////////////////////////////////////////////////////////////////////////// -// return a row pointer for the decoder to fill -static mng_ptr mymnggetcanvasline( mng_handle mng, mng_uint32 line ) -{ - mngstuff *mymng = (mngstuff *)mng_get_userdata(mng); - return (mng_ptr)(mymng->image + (mymng->effwdt * (mymng->height - 1 - line))); -} -//////////////////////////////////////////////////////////////////////////////// -// return a row pointer for the decoder to fill for alpha channel -static mng_ptr mymnggetalphaline( mng_handle mng, mng_uint32 line ) -{ - mngstuff *mymng = (mngstuff *)mng_get_userdata(mng); - return (mng_ptr)(mymng->alpha + (mymng->width * (mymng->height - 1 - line))); -} - -//////////////////////////////////////////////////////////////////////////////// -// timer -static mng_uint32 mymnggetticks(mng_handle mng) -{ -#ifdef WIN32 - return (mng_uint32)GetTickCount(); -#else - return 0; -#endif -} - -//////////////////////////////////////////////////////////////////////////////// -// Refresh: actual frame need to be updated (Invalidate) -static mng_bool mymngrefresh(mng_handle mng, mng_uint32 x, mng_uint32 y, mng_uint32 w, mng_uint32 h) -{ -// mngstuff *mymng = (mngstuff *)mng_get_userdata(mng); - return MNG_TRUE; -} - -//////////////////////////////////////////////////////////////////////////////// -// interframe delay callback -static mng_bool mymngsettimer(mng_handle mng, mng_uint32 msecs) -{ - mngstuff *mymng = (mngstuff *)mng_get_userdata(mng); - mymng->delay = msecs; // set the timer for when the decoder wants to be woken - return MNG_TRUE; -} - -//////////////////////////////////////////////////////////////////////////////// -static mng_bool mymngerror(mng_handle mng, mng_int32 code, mng_int8 severity, mng_chunkid chunktype, mng_uint32 chunkseq, mng_int32 extra1, mng_int32 extra2, mng_pchar text) -{ - return mng_cleanup(&mng); // -} - -//////////////////////////////////////////////////////////////////////////////// -// CxImage members -//////////////////////////////////////////////////////////////////////////////// -CxImageMNG::CxImageMNG(): CxImage(CXIMAGE_FORMAT_MNG) -{ - hmng = NULL; - memset(&mnginfo,0,sizeof(mngstuff)); - mnginfo.nBkgndIndex = -1; - mnginfo.speed = 1.0f; -} -//////////////////////////////////////////////////////////////////////////////// -CxImageMNG::~CxImageMNG() -{ - // cleanup and return - if (mnginfo.thread){ //close the animation thread - mnginfo.animation_enabled=0; - ResumeThread(mnginfo.thread); - WaitForSingleObject(mnginfo.thread,500); - CloseHandle(mnginfo.thread); - } - // free objects - if (mnginfo.image) free(mnginfo.image); - if (mnginfo.alpha) free(mnginfo.alpha); - if (hmng) mng_cleanup(&hmng); //be sure it's not needed any more. (active timers ?) -} -//////////////////////////////////////////////////////////////////////////////// -void CxImageMNG::SetCallbacks(mng_handle mng) -{ - // set the callbacks - mng_setcb_errorproc(mng, mymngerror); - mng_setcb_openstream(mng, mymngopenstream); - mng_setcb_closestream(mng, mymngclosestream); - mng_setcb_readdata(mng, mymngreadstream); - mng_setcb_processheader(mng, mymngprocessheader); - mng_setcb_getcanvasline(mng, mymnggetcanvasline); - mng_setcb_refresh(mng, mymngrefresh); - mng_setcb_gettickcount(mng, mymnggetticks); - mng_setcb_settimer(mng, mymngsettimer); - mng_setcb_refresh(mng, mymngrefresh); - mng_setcb_getalphaline(mng, mymnggetalphaline); -} -//////////////////////////////////////////////////////////////////////////////// -// can't use the CxImage implementation because it looses mnginfo -bool CxImageMNG::Load(const TCHAR * imageFileName){ - FILE* hFile; //file handle to read the image -#ifdef WIN32 - if ((hFile=_tfopen(imageFileName,_T("rb")))==NULL) return false; // For UNICODE support -#else - if ((hFile=fopen(imageFileName,"rb"))==NULL) return false; -#endif - bool bOK = Decode(hFile); - fclose(hFile); - return bOK; -} -//////////////////////////////////////////////////////////////////////////////// -#if CXIMAGE_SUPPORT_DECODE -//////////////////////////////////////////////////////////////////////////////// -bool CxImageMNG::Decode(CxFile *hFile) -{ - if (hFile == NULL) return false; - - cx_try - { - // set up the mng decoder for our stream - hmng = mng_initialize(&mnginfo, mymngalloc, mymngfree, MNG_NULL); - if (hmng == NULL) cx_throw("could not initialize libmng"); - - // set the file we want to play - mnginfo.file = hFile; - - // Set the colorprofile, lcms uses this: - mng_set_srgb(hmng, MNG_TRUE ); - // Set white as background color: - WORD Red,Green,Blue; - Red = Green = Blue = (255 << 8) + 255; - mng_set_bgcolor(hmng, Red, Green, Blue ); - // If PNG Background is available, use it: - mng_set_usebkgd(hmng, MNG_TRUE ); - - // No need to store chunks: - mng_set_storechunks(hmng, MNG_FALSE); - // No need to wait: straight reading - mng_set_suspensionmode(hmng, MNG_FALSE); - - SetCallbacks(hmng); - - mng_datap pData = (mng_datap)hmng; - - // read in the image - info.nNumFrames=0; - int retval=MNG_NOERROR; - - retval = mng_readdisplay(hmng); - - if (retval != MNG_NOERROR && retval != MNG_NEEDTIMERWAIT){ - mng_store_error(hmng,retval,0,0); - if (hmng->zErrortext){ - cx_throw(hmng->zErrortext); - } else { - cx_throw("Error in MNG file"); - } - } - - if (info.nEscape == -1) { - // Return output dimensions only - head.biWidth = hmng->iWidth; - head.biHeight = hmng->iHeight; - info.dwType = CXIMAGE_FORMAT_MNG; - return true; - } - - // read all - while(pData->bReading){ - retval = mng_display_resume(hmng); - info.nNumFrames++; - } - - // single frame check: - if (retval != MNG_NEEDTIMERWAIT){ - info.nNumFrames--; - } else { - mnginfo.animation=1; - } - - if (info.nNumFrames<=0) info.nNumFrames=1; - - if (mnginfo.animation_enabled==0){ - // select the frame - if (info.nFrame>=0 && info.nFrame= 0){ - info.nBkgndIndex = mnginfo.nBkgndIndex; - info.nBkgndColor.rgbRed = mnginfo.nBkgndColor.rgbRed; - info.nBkgndColor.rgbGreen = mnginfo.nBkgndColor.rgbGreen; - info.nBkgndColor.rgbBlue = mnginfo.nBkgndColor.rgbBlue; - } - - //store the newly created image - if (Create(mnginfo.width,mnginfo.height,mnginfo.bpp, CXIMAGE_FORMAT_MNG)){ - memcpy(GetBits(), mnginfo.image, info.dwEffWidth * head.biHeight); -#if CXIMAGE_SUPPORT_ALPHA - SwapRGB2BGR(); - AlphaCreate(); - if(AlphaIsValid() && mnginfo.alpha){ - memcpy(AlphaGetPointer(),mnginfo.alpha,mnginfo.width * mnginfo.height); - } -#endif - } else cx_throw("CxImageMNG::Decode cannot create image"); - - - } cx_catch { - if (strcmp(message,"")) strncpy(info.szLastError,message,255); - return false; - } - return true; -} -//////////////////////////////////////////////////////////////////////////////// -#endif //CXIMAGE_SUPPORT_DECODE -//////////////////////////////////////////////////////////////////////////////// -#if CXIMAGE_SUPPORT_ENCODE -//////////////////////////////////////////////////////////////////////////////// -bool CxImageMNG::Encode(CxFile *hFile) -{ - if (EncodeSafeCheck(hFile)) return false; - - cx_try - { - if (head.biClrUsed != 0) cx_throw("MNG encoder can save only RGB images"); - // set the file we want to play - mnginfo.file = hFile; - mnginfo.bpp = head.biBitCount; - mnginfo.effwdt = info.dwEffWidth; - mnginfo.height = head.biHeight; - mnginfo.width = head.biWidth; - - mnginfo.image = (BYTE*)malloc(head.biSizeImage); - if (mnginfo.image == NULL) cx_throw("could not allocate memory for MNG"); - memcpy(mnginfo.image,info.pImage, head.biSizeImage); - - // set up the mng decoder for our stream - hmng = mng_initialize(&mnginfo, mymngalloc, mymngfree, MNG_NULL); - if (hmng == NULL) cx_throw("could not initialize libmng"); - - mng_setcb_openstream(hmng, mymngopenstreamwrite ); - mng_setcb_closestream(hmng, mymngclosestream); - mng_setcb_writedata(hmng, mymngwritestream); - - // Write File: - mng_create(hmng); - // Just a single Frame (save a normal PNG): - WritePNG(hmng, 0, 1 ); - // Now write file: - mng_write(hmng); - - } cx_catch { - if (strcmp(message,"")) strncpy(info.szLastError,message,255); - return false; - } - return true; -} -//////////////////////////////////////////////////////////////////////////////// -// Writes a single PNG datastream -void CxImageMNG::WritePNG( mng_handle hMNG, int Frame, int FrameCount ) -{ - mngstuff *mymng = (mngstuff *)mng_get_userdata(hMNG); - - int OffsetX=0,OffsetY=0,OffsetW=mymng->width,OffsetH=mymng->height; - - BYTE *tmpbuffer = new BYTE[ (mymng->effwdt+1) * mymng->height]; - if( tmpbuffer == 0 ) return; - - // Write DEFI chunk. - mng_putchunk_defi( hMNG, 0, 0, 0, MNG_TRUE, OffsetX, OffsetY, MNG_FALSE, 0, 0, 0, 0 ); - - // Write Header: - mng_putchunk_ihdr( - hMNG, - OffsetW, OffsetH, - MNG_BITDEPTH_8, - MNG_COLORTYPE_RGB, - MNG_COMPRESSION_DEFLATE, - MNG_FILTER_ADAPTIVE, - MNG_INTERLACE_NONE - ); - - // transfer data, add Filterbyte: - for( int Row=0; Row No Filter. - tmpbuffer[Row*(mymng->effwdt+1)]=0; - // Copy the scanline: (reverse order) - memcpy(tmpbuffer+Row*(mymng->effwdt+1)+1, - mymng->image+((OffsetH-1-(OffsetY+Row))*(mymng->effwdt))+OffsetX,mymng->effwdt); - // swap red and blue components - RGBtoBGR(tmpbuffer+Row*(mymng->effwdt+1)+1,mymng->effwdt); - } - - // Compress data with ZLib (Deflate): - BYTE *dstbuffer = new BYTE[(mymng->effwdt+1)*OffsetH]; - if( dstbuffer == 0 ) return; - DWORD dstbufferSize=(mymng->effwdt+1)*OffsetH; - - // Compress data: - if(Z_OK != compress2((Bytef *)dstbuffer,(ULONG *)&dstbufferSize,(const Bytef*)tmpbuffer, - (ULONG) (mymng->effwdt+1)*OffsetH,9 )) return; - - // Write Data into MNG File: - mng_putchunk_idat( hMNG, dstbufferSize, (mng_ptr*)dstbuffer); - mng_putchunk_iend(hMNG); - - // Free the stuff: - delete [] tmpbuffer; - delete [] dstbuffer; -} -//////////////////////////////////////////////////////////////////////////////// -long CxImageMNG::Resume() -{ - if (MNG_NEEDTIMERWAIT == mng_display_resume(hmng)){ - if (info.pImage==NULL){ - Create(mnginfo.width,mnginfo.height,mnginfo.bpp, CXIMAGE_FORMAT_MNG); - } - if (IsValid()){ - memcpy(GetBits(), mnginfo.image, info.dwEffWidth * head.biHeight); -#if CXIMAGE_SUPPORT_ALPHA - SwapRGB2BGR(); - AlphaCreate(); - if(AlphaIsValid() && mnginfo.alpha){ - memcpy(AlphaGetPointer(),mnginfo.alpha,mnginfo.width * mnginfo.height); - } -#endif - } - } else { - mnginfo.animation_enabled = 0; - } - return mnginfo.animation_enabled; -} -//////////////////////////////////////////////////////////////////////////////// -void CxImageMNG::SetSpeed(float speed) -{ - if (speed>10.0) mnginfo.speed = 10.0f; - else if (speed<0.1) mnginfo.speed = 0.1f; - else mnginfo.speed=speed; -} -//////////////////////////////////////////////////////////////////////////////// -#endif //CXIMAGE_SUPPORT_ENCODE -//////////////////////////////////////////////////////////////////////////////// -#endif // CXIMAGE_SUPPORT_MNG diff --git a/src/3rdParty/CxImage/CxImage/ximamng.h b/src/3rdParty/CxImage/CxImage/ximamng.h deleted file mode 100644 index adc922ca2a..0000000000 --- a/src/3rdParty/CxImage/CxImage/ximamng.h +++ /dev/null @@ -1,88 +0,0 @@ -/* - * File: ximamng.h - * Purpose: Declaration of the MNG Image Class - * Author: Davide Pizzolato - www.xdp.it - * Created: 2001 - */ -/* ========================================================== - * CxImageMNG (c) 07/Aug/2001 Davide Pizzolato - www.xdp.it - * For conditions of distribution and use, see copyright notice in ximage.h - * - * Special thanks to Frank Haug for suggestions and code. - * - * original mng.cpp code created by Nikolaus Brennig, November 14th, 2000. - * - * LIBMNG Copyright (c) 2000,2001 Gerard Juyn (gerard@libmng.com) - * ========================================================== - */ - -#if !defined(__ximaMNG_h) -#define __ximaMNG_h - -#include "ximage.h" - -#if CXIMAGE_SUPPORT_MNG - -//#define MNG_NO_CMS -#define MNG_SUPPORT_DISPLAY -#define MNG_SUPPORT_READ -#define MNG_SUPPORT_WRITE -#define MNG_ACCESS_CHUNKS -#define MNG_STORE_CHUNKS - -extern "C" { -#include "../mng/libmng.h" -#include "../mng/libmng_data.h" -#include "../mng/libmng_error.h" -} - -//unsigned long _stdcall RunMNGThread(void *lpParam); - -typedef struct tagmngstuff -{ - CxFile *file; - BYTE *image; - BYTE *alpha; - HANDLE thread; - mng_uint32 delay; - mng_uint32 width; - mng_uint32 height; - mng_uint32 effwdt; - mng_int16 bpp; - mng_bool animation; - mng_bool animation_enabled; - float speed; - long nBkgndIndex; - RGBQUAD nBkgndColor; -} mngstuff; - -class CxImageMNG: public CxImage -{ -public: - CxImageMNG(); - ~CxImageMNG(); - - bool Load(const TCHAR * imageFileName); - - bool Decode(CxFile * hFile); - bool Decode(FILE *hFile) { CxIOFile file(hFile); return Decode(&file); } - -#if CXIMAGE_SUPPORT_ENCODE - bool Encode(CxFile * hFile); - bool Encode(FILE *hFile) { CxIOFile file(hFile); return Encode(&file); } - bool Save(const TCHAR * imageFileName){ return CxImage::Save(imageFileName,CXIMAGE_FORMAT_MNG);} -#endif // CXIMAGE_SUPPORT_ENCODE - - long Resume(); - void SetSpeed(float speed); - - mng_handle hmng; - mngstuff mnginfo; -protected: - void WritePNG(mng_handle hMNG, int Frame, int FrameCount ); - void SetCallbacks(mng_handle mng); -}; - -#endif - -#endif diff --git a/src/3rdParty/CxImage/CxImage/ximapal.cpp b/src/3rdParty/CxImage/CxImage/ximapal.cpp deleted file mode 100644 index f7de9eb737..0000000000 --- a/src/3rdParty/CxImage/CxImage/ximapal.cpp +++ /dev/null @@ -1,834 +0,0 @@ -// xImaPal.cpp : Palette and Pixel functions -/* 07/08/2001 v1.00 - Davide Pizzolato - www.xdp.it - * CxImage version 6.0.0 02/Feb/2008 - */ - -#include "ximage.h" - -//////////////////////////////////////////////////////////////////////////////// -/** - * returns the palette dimension in byte - */ -DWORD CxImage::GetPaletteSize() -{ - return (head.biClrUsed * sizeof(RGBQUAD)); -} -//////////////////////////////////////////////////////////////////////////////// -void CxImage::SetPaletteColor(BYTE idx, BYTE r, BYTE g, BYTE b, BYTE alpha) -{ - if ((pDib)&&(head.biClrUsed)){ - BYTE* iDst = (BYTE*)(pDib) + sizeof(BITMAPINFOHEADER); - if (idx=head.biWidth)||(y>=head.biHeight)) { - if (info.nBkgndIndex >= 0) return (BYTE)info.nBkgndIndex; - else return *info.pImage; - } - if (head.biBitCount==8){ - return info.pImage[y*info.dwEffWidth + x]; - } else { - BYTE pos; - BYTE iDst= info.pImage[y*info.dwEffWidth + (x*head.biBitCount >> 3)]; - if (head.biBitCount==4){ - pos = (BYTE)(4*(1-x%2)); - iDst &= (0x0F<> pos); - } else if (head.biBitCount==1){ - pos = (BYTE)(7-x%8); - iDst &= (0x01<> pos); - } - } - return 0; -} -//////////////////////////////////////////////////////////////////////////////// -BYTE CxImage::BlindGetPixelIndex(const long x,const long y) -{ -#ifdef _DEBUG - if ((pDib==NULL) || (head.biClrUsed==0) || !IsInside(x,y)) - #if CXIMAGE_SUPPORT_EXCEPTION_HANDLING - throw 0; - #else - return 0; - #endif -#endif - - if (head.biBitCount==8){ - return info.pImage[y*info.dwEffWidth + x]; - } else { - BYTE pos; - BYTE iDst= info.pImage[y*info.dwEffWidth + (x*head.biBitCount >> 3)]; - if (head.biBitCount==4){ - pos = (BYTE)(4*(1-x%2)); - iDst &= (0x0F<> pos); - } else if (head.biBitCount==1){ - pos = (BYTE)(7-x%8); - iDst &= (0x01<> pos); - } - } - return 0; -} -//////////////////////////////////////////////////////////////////////////////// -RGBQUAD CxImage::GetPixelColor(long x,long y, bool bGetAlpha) -{ -// RGBQUAD rgb={0,0,0,0}; - RGBQUAD rgb=info.nBkgndColor; // - if ((pDib==NULL)||(x<0)||(y<0)|| - (x>=head.biWidth)||(y>=head.biHeight)){ - if (info.nBkgndIndex >= 0){ - if (head.biBitCount<24) return GetPaletteColor((BYTE)info.nBkgndIndex); - else return info.nBkgndColor; - } else if (pDib) return GetPixelColor(0,0); - return rgb; - } - - if (head.biClrUsed){ - rgb = GetPaletteColor(BlindGetPixelIndex(x,y)); - } else { - BYTE* iDst = info.pImage + y*info.dwEffWidth + x*3; - rgb.rgbBlue = *iDst++; - rgb.rgbGreen= *iDst++; - rgb.rgbRed = *iDst; - } -#if CXIMAGE_SUPPORT_ALPHA - if (pAlpha && bGetAlpha) rgb.rgbReserved = BlindAlphaGet(x,y); -#else - rgb.rgbReserved = 0; -#endif //CXIMAGE_SUPPORT_ALPHA - return rgb; -} -//////////////////////////////////////////////////////////////////////////////// -/** - * This is (a bit) faster version of GetPixelColor. - * It tests bounds only in debug mode (_DEBUG defined). - * - * It is an error to request out-of-borders pixel with this method. - * In DEBUG mode an exception will be thrown, and data will be violated in non-DEBUG mode. - * \author ***bd*** 2.2004 - */ -RGBQUAD CxImage::BlindGetPixelColor(const long x,const long y, bool bGetAlpha) -{ - RGBQUAD rgb; -#ifdef _DEBUG - if ((pDib==NULL) || !IsInside(x,y)) - #if CXIMAGE_SUPPORT_EXCEPTION_HANDLING - throw 0; - #else - {rgb.rgbReserved = 0; return rgb;} - #endif -#endif - - if (head.biClrUsed){ - rgb = GetPaletteColor(BlindGetPixelIndex(x,y)); - } else { - BYTE* iDst = info.pImage + y*info.dwEffWidth + x*3; - rgb.rgbBlue = *iDst++; - rgb.rgbGreen= *iDst++; - rgb.rgbRed = *iDst; - rgb.rgbReserved = 0; //needed for images without alpha layer - } -#if CXIMAGE_SUPPORT_ALPHA - if (pAlpha && bGetAlpha) rgb.rgbReserved = BlindAlphaGet(x,y); -#else - rgb.rgbReserved = 0; -#endif //CXIMAGE_SUPPORT_ALPHA - return rgb; -} -//////////////////////////////////////////////////////////////////////////////// -BYTE CxImage::GetPixelGray(long x, long y) -{ - RGBQUAD color = GetPixelColor(x,y); - return (BYTE)RGB2GRAY(color.rgbRed,color.rgbGreen,color.rgbBlue); -} -//////////////////////////////////////////////////////////////////////////////// -void CxImage::BlindSetPixelIndex(long x,long y,BYTE i) -{ -#ifdef _DEBUG - if ((pDib==NULL)||(head.biClrUsed==0)|| - (x<0)||(y<0)||(x>=head.biWidth)||(y>=head.biHeight)) - #if CXIMAGE_SUPPORT_EXCEPTION_HANDLING - throw 0; - #else - return; - #endif -#endif - - if (head.biBitCount==8){ - info.pImage[y*info.dwEffWidth + x]=i; - return; - } else { - BYTE pos; - BYTE* iDst= info.pImage + y*info.dwEffWidth + (x*head.biBitCount >> 3); - if (head.biBitCount==4){ - pos = (BYTE)(4*(1-x%2)); - *iDst &= ~(0x0F<=head.biWidth)||(y>=head.biHeight)) return ; - - if (head.biBitCount==8){ - info.pImage[y*info.dwEffWidth + x]=i; - return; - } else { - BYTE pos; - BYTE* iDst= info.pImage + y*info.dwEffWidth + (x*head.biBitCount >> 3); - if (head.biBitCount==4){ - pos = (BYTE)(4*(1-x%2)); - *iDst &= ~(0x0F<=head.biWidth)||(y>=head.biHeight)) - #if CXIMAGE_SUPPORT_EXCEPTION_HANDLING - throw 0; - #else - return; - #endif -#endif - if (head.biClrUsed) - BlindSetPixelIndex(x,y,GetNearestIndex(c)); - else { - BYTE* iDst = info.pImage + y*info.dwEffWidth + x*3; - *iDst++ = c.rgbBlue; - *iDst++ = c.rgbGreen; - *iDst = c.rgbRed; - } -#if CXIMAGE_SUPPORT_ALPHA - if (bSetAlpha) AlphaSet(x,y,c.rgbReserved); -#endif //CXIMAGE_SUPPORT_ALPHA -} -//////////////////////////////////////////////////////////////////////////////// -void CxImage::SetPixelColor(long x,long y,RGBQUAD c, bool bSetAlpha) -{ - if ((pDib==NULL)||(x<0)||(y<0)|| - (x>=head.biWidth)||(y>=head.biHeight)) return; - if (head.biClrUsed) - BlindSetPixelIndex(x,y,GetNearestIndex(c)); - else { - BYTE* iDst = info.pImage + y*info.dwEffWidth + x*3; - *iDst++ = c.rgbBlue; - *iDst++ = c.rgbGreen; - *iDst = c.rgbRed; - } -#if CXIMAGE_SUPPORT_ALPHA - if (bSetAlpha) AlphaSet(x,y,c.rgbReserved); -#endif //CXIMAGE_SUPPORT_ALPHA -} -//////////////////////////////////////////////////////////////////////////////// -/** - * Blends the current pixel color with a new color. - * \param x,y = pixel - * \param c = new color - * \param blend = can be from 0 (no effect) to 1 (full effect). - * \param bSetAlpha = if true, blends also the alpha component stored in c.rgbReserved - */ -void CxImage::BlendPixelColor(long x,long y,RGBQUAD c, float blend, bool bSetAlpha) -{ - if ((pDib==NULL)||(x<0)||(y<0)|| - (x>=head.biWidth)||(y>=head.biHeight)) return; - - int a0 = (int)(256*blend); - int a1 = 256 - a0; - - RGBQUAD c0 = BlindGetPixelColor(x,y); - c.rgbRed = (BYTE)((c.rgbRed * a0 + c0.rgbRed * a1)>>8); - c.rgbBlue = (BYTE)((c.rgbBlue * a0 + c0.rgbBlue * a1)>>8); - c.rgbGreen = (BYTE)((c.rgbGreen * a0 + c0.rgbGreen * a1)>>8); - - if (head.biClrUsed) - BlindSetPixelIndex(x,y,GetNearestIndex(c)); - else { - BYTE* iDst = info.pImage + y*info.dwEffWidth + x*3; - *iDst++ = c.rgbBlue; - *iDst++ = c.rgbGreen; - *iDst = c.rgbRed; -#if CXIMAGE_SUPPORT_ALPHA - if (bSetAlpha) AlphaSet(x,y,c.rgbReserved); -#endif //CXIMAGE_SUPPORT_ALPHA - } -} -//////////////////////////////////////////////////////////////////////////////// -/** - * Returns the best palette index that matches a specified color. - */ -BYTE CxImage::GetNearestIndex(RGBQUAD c) -{ - if ((pDib==NULL)||(head.biClrUsed==0)) return 0; - - // check matching with the previous result - if (info.last_c_isvalid && (*(long*)&info.last_c == *(long*)&c)) return info.last_c_index; - info.last_c = c; - info.last_c_isvalid = true; - - BYTE* iDst = (BYTE*)(pDib) + sizeof(BITMAPINFOHEADER); - long distance=200000; - int i,j = 0; - long k,l; - int m = (int)(head.biClrImportant==0 ? head.biClrUsed : head.biClrImportant); - for(i=0,l=0;i100) perc=100; - for(i=0;i=0){ - if (head.biClrUsed){ - if (GetPixelIndex(x,y) == info.nBkgndIndex) return true; - } else { - RGBQUAD ct = info.nBkgndColor; - RGBQUAD c = GetPixelColor(x,y,false); - if (*(long*)&c==*(long*)&ct) return true; - } - } - -#if CXIMAGE_SUPPORT_ALPHA - if (pAlpha) return AlphaGet(x,y)==0; -#endif - - return false; -} -//////////////////////////////////////////////////////////////////////////////// -bool CxImage::GetTransparentMask(CxImage* iDst) -{ - if (!pDib) return false; - - CxImage tmp; - tmp.Create(head.biWidth, head.biHeight, 1, GetType()); - tmp.SetStdPalette(); - tmp.Clear(0); - - for(long y=0; yTransfer(tmp); - else Transfer(tmp); - - return true; -} -//////////////////////////////////////////////////////////////////////////////// -/** - * Checks if image has the same palette, if any. - * \param img = image to compare. - * \param bCheckAlpha = check also the rgbReserved field. - */ -bool CxImage::IsSamePalette(CxImage &img, bool bCheckAlpha) -{ - if (head.biClrUsed != img.head.biClrUsed) - return false; - if (head.biClrUsed == 0) - return false; - - RGBQUAD c1,c2; - for (DWORD n=0; n256) { - head.biClrImportant = 0; - return; - } - - switch(head.biBitCount){ - case 1: - head.biClrImportant = min(ncolors,2); - break; - case 4: - head.biClrImportant = min(ncolors,16); - break; - case 8: - head.biClrImportant = ncolors; - break; - } - return; -} -//////////////////////////////////////////////////////////////////////////////// -/** - * Returns pointer to pixel. Currently implemented only for truecolor images. - * - * \param x,y - coordinates - * - * \return pointer to first byte of pixel data - * - * \author ***bd*** 2.2004 - */ -void* CxImage::BlindGetPixelPointer(const long x, const long y) -{ -#ifdef _DEBUG - if ((pDib==NULL) || !IsInside(x,y)) - #if CXIMAGE_SUPPORT_EXCEPTION_HANDLING - throw 0; - #else - return 0; - #endif -#endif - if (!IsIndexed()) - return info.pImage + y*info.dwEffWidth + x*3; - else - return 0; -} -//////////////////////////////////////////////////////////////////////////////// -void CxImage::DrawLine(int StartX, int EndX, int StartY, int EndY, COLORREF cr) -{ - DrawLine(StartX, EndX, StartY, EndY, RGBtoRGBQUAD(cr)); -} -//////////////////////////////////////////////////////////////////////////////// -void CxImage::DrawLine(int StartX, int EndX, int StartY, int EndY, RGBQUAD color, bool bSetAlpha) -{ - if (!pDib) return; - ////////////////////////////////////////////////////// - // Draws a line using the Bresenham line algorithm - // Thanks to Jordan DeLozier - ////////////////////////////////////////////////////// - int x1 = StartX; - int y1 = StartY; - int x = x1; // Start x off at the first pixel - int y = y1; // Start y off at the first pixel - int x2 = EndX; - int y2 = EndY; - - int xinc1,xinc2,yinc1,yinc2; // Increasing values - int den, num, numadd,numpixels; - int deltax = abs(x2 - x1); // The difference between the x's - int deltay = abs(y2 - y1); // The difference between the y's - - // Get Increasing Values - if (x2 >= x1) { // The x-values are increasing - xinc1 = 1; - xinc2 = 1; - } else { // The x-values are decreasing - xinc1 = -1; - xinc2 = -1; - } - - if (y2 >= y1) { // The y-values are increasing - yinc1 = 1; - yinc2 = 1; - } else { // The y-values are decreasing - yinc1 = -1; - yinc2 = -1; - } - - // Actually draw the line - if (deltax >= deltay) // There is at least one x-value for every y-value - { - xinc1 = 0; // Don't change the x when numerator >= denominator - yinc2 = 0; // Don't change the y for every iteration - den = deltax; - num = deltax / 2; - numadd = deltay; - numpixels = deltax; // There are more x-values than y-values - } - else // There is at least one y-value for every x-value - { - xinc2 = 0; // Don't change the x for every iteration - yinc1 = 0; // Don't change the y when numerator >= denominator - den = deltay; - num = deltay / 2; - numadd = deltax; - numpixels = deltay; // There are more y-values than x-values - } - - for (int curpixel = 0; curpixel <= numpixels; curpixel++) - { - // Draw the current pixel - SetPixelColor(x,y,color,bSetAlpha); - - num += numadd; // Increase the numerator by the top of the fraction - if (num >= den) // Check if numerator >= denominator - { - num -= den; // Calculate the new numerator value - x += xinc1; // Change the x as appropriate - y += yinc1; // Change the y as appropriate - } - x += xinc2; // Change the x as appropriate - y += yinc2; // Change the y as appropriate - } -} -//////////////////////////////////////////////////////////////////////////////// -/** - * Sets a palette with standard colors for 1, 4 and 8 bpp images. - */ -void CxImage::SetStdPalette() -{ - if (!pDib) return; - switch (head.biBitCount){ - case 8: - { - const BYTE pal256[1024] = {0,0,0,0,0,0,128,0,0,128,0,0,0,128,128,0,128,0,0,0,128,0,128,0,128,128,0,0,192,192,192,0, - 192,220,192,0,240,202,166,0,212,240,255,0,177,226,255,0,142,212,255,0,107,198,255,0, - 72,184,255,0,37,170,255,0,0,170,255,0,0,146,220,0,0,122,185,0,0,98,150,0,0,74,115,0,0, - 50,80,0,212,227,255,0,177,199,255,0,142,171,255,0,107,143,255,0,72,115,255,0,37,87,255,0,0, - 85,255,0,0,73,220,0,0,61,185,0,0,49,150,0,0,37,115,0,0,25,80,0,212,212,255,0,177,177,255,0, - 142,142,255,0,107,107,255,0,72,72,255,0,37,37,255,0,0,0,254,0,0,0,220,0,0,0,185,0,0,0,150,0, - 0,0,115,0,0,0,80,0,227,212,255,0,199,177,255,0,171,142,255,0,143,107,255,0,115,72,255,0, - 87,37,255,0,85,0,255,0,73,0,220,0,61,0,185,0,49,0,150,0,37,0,115,0,25,0,80,0,240,212,255,0, - 226,177,255,0,212,142,255,0,198,107,255,0,184,72,255,0,170,37,255,0,170,0,255,0,146,0,220,0, - 122,0,185,0,98,0,150,0,74,0,115,0,50,0,80,0,255,212,255,0,255,177,255,0,255,142,255,0,255,107,255,0, - 255,72,255,0,255,37,255,0,254,0,254,0,220,0,220,0,185,0,185,0,150,0,150,0,115,0,115,0,80,0,80,0, - 255,212,240,0,255,177,226,0,255,142,212,0,255,107,198,0,255,72,184,0,255,37,170,0,255,0,170,0, - 220,0,146,0,185,0,122,0,150,0,98,0,115,0,74,0,80,0,50,0,255,212,227,0,255,177,199,0,255,142,171,0, - 255,107,143,0,255,72,115,0,255,37,87,0,255,0,85,0,220,0,73,0,185,0,61,0,150,0,49,0,115,0,37,0, - 80,0,25,0,255,212,212,0,255,177,177,0,255,142,142,0,255,107,107,0,255,72,72,0,255,37,37,0,254,0, - 0,0,220,0,0,0,185,0,0,0,150,0,0,0,115,0,0,0,80,0,0,0,255,227,212,0,255,199,177,0,255,171,142,0, - 255,143,107,0,255,115,72,0,255,87,37,0,255,85,0,0,220,73,0,0,185,61,0,0,150,49,0,0,115,37,0, - 0,80,25,0,0,255,240,212,0,255,226,177,0,255,212,142,0,255,198,107,0,255,184,72,0,255,170,37,0, - 255,170,0,0,220,146,0,0,185,122,0,0,150,98,0,0,115,74,0,0,80,50,0,0,255,255,212,0,255,255,177,0, - 255,255,142,0,255,255,107,0,255,255,72,0,255,255,37,0,254,254,0,0,220,220,0,0,185,185,0,0,150,150,0, - 0,115,115,0,0,80,80,0,0,240,255,212,0,226,255,177,0,212,255,142,0,198,255,107,0,184,255,72,0, - 170,255,37,0,170,255,0,0,146,220,0,0,122,185,0,0,98,150,0,0,74,115,0,0,50,80,0,0,227,255,212,0, - 199,255,177,0,171,255,142,0,143,255,107,0,115,255,72,0,87,255,37,0,85,255,0,0,73,220,0,0,61,185,0, - 0,49,150,0,0,37,115,0,0,25,80,0,0,212,255,212,0,177,255,177,0,142,255,142,0,107,255,107,0,72,255,72,0, - 37,255,37,0,0,254,0,0,0,220,0,0,0,185,0,0,0,150,0,0,0,115,0,0,0,80,0,0,212,255,227,0,177,255,199,0, - 142,255,171,0,107,255,143,0,72,255,115,0,37,255,87,0,0,255,85,0,0,220,73,0,0,185,61,0,0,150,49,0,0, - 115,37,0,0,80,25,0,212,255,240,0,177,255,226,0,142,255,212,0,107,255,198,0,72,255,184,0,37,255,170,0, - 0,255,170,0,0,220,146,0,0,185,122,0,0,150,98,0,0,115,74,0,0,80,50,0,212,255,255,0,177,255,255,0, - 142,255,255,0,107,255,255,0,72,255,255,0,37,255,255,0,0,254,254,0,0,220,220,0,0,185,185,0,0, - 150,150,0,0,115,115,0,0,80,80,0,242,242,242,0,230,230,230,0,218,218,218,0,206,206,206,0,194,194,194,0, - 182,182,182,0,170,170,170,0,158,158,158,0,146,146,146,0,134,134,134,0,122,122,122,0,110,110,110,0, - 98,98,98,0,86,86,86,0,74,74,74,0,62,62,62,0,50,50,50,0,38,38,38,0,26,26,26,0,14,14,14,0,240,251,255,0, - 164,160,160,0,128,128,128,0,0,0,255,0,0,255,0,0,0,255,255,0,255,0,0,0,255,0,255,0,255,255,0,0,255,255,255,0}; - memcpy(GetPalette(),pal256,1024); - break; - } - case 4: - { - const BYTE pal16[64]={0,0,0,0,0,0,128,0,0,128,0,0,0,128,128,0,128,0,0,0,128,0,128,0,128,128,0,0,192,192,192,0, - 128,128,128,0,0,0,255,0,0,255,0,0,0,255,255,0,255,0,0,0,255,0,255,0,255,255,0,0,255,255,255,0}; - memcpy(GetPalette(),pal16,64); - break; - } - case 1: - { - const BYTE pal2[8]={0,0,0,0,255,255,255,0}; - memcpy(GetPalette(),pal2,8); - break; - } - } - info.last_c_isvalid = false; - return; -} -//////////////////////////////////////////////////////////////////////////////// diff --git a/src/3rdParty/CxImage/CxImage/ximapcx.cpp b/src/3rdParty/CxImage/CxImage/ximapcx.cpp deleted file mode 100644 index 0d7e0a8624..0000000000 --- a/src/3rdParty/CxImage/CxImage/ximapcx.cpp +++ /dev/null @@ -1,479 +0,0 @@ -/* - * File: ximapcx.cpp - * Purpose: Platform Independent PCX Image Class Loader and Writer - * 05/Jan/2002 Davide Pizzolato - www.xdp.it - * CxImage version 6.0.0 02/Feb/2008 - * - * based on ppmtopcx.c - convert a portable pixmap to PCX - * Copyright (C) 1994 by Ingo Wilken (Ingo.Wilken@informatik.uni-oldenburg.de) - * based on ppmtopcx.c by Michael Davidson - */ - -#include "ximapcx.h" - -#if CXIMAGE_SUPPORT_PCX - -#include "xmemfile.h" - -#define PCX_MAGIC 0X0A // PCX magic number -#define PCX_256_COLORS 0X0C // magic number for 256 colors -#define PCX_HDR_SIZE 128 // size of PCX header -#define PCX_MAXCOLORS 256 -#define PCX_MAXPLANES 4 -#define PCX_MAXVAL 255 - -//////////////////////////////////////////////////////////////////////////////// -#if CXIMAGE_SUPPORT_DECODE -//////////////////////////////////////////////////////////////////////////////// -bool CxImagePCX::Decode(CxFile *hFile) -{ - if (hFile == NULL) return false; - - PCXHEADER pcxHeader; - int i, x, y, y2, nbytes, count, Height, Width; - BYTE c, ColorMap[PCX_MAXCOLORS][3]; - BYTE *pcximage = NULL, *lpHead1 = NULL, *lpHead2 = NULL; - BYTE *pcxplanes, *pcxpixels; - - cx_try - { - if (hFile->Read(&pcxHeader,sizeof(PCXHEADER),1)==0) cx_throw("Can't read PCX image"); - - PCX_toh(&pcxHeader); - - if (pcxHeader.Manufacturer != PCX_MAGIC) cx_throw("Error: Not a PCX file"); - // Check for PCX run length encoding - if (pcxHeader.Encoding != 1) cx_throw("PCX file has unknown encoding scheme"); - - Width = (pcxHeader.Xmax - pcxHeader.Xmin) + 1; - Height = (pcxHeader.Ymax - pcxHeader.Ymin) + 1; - info.xDPI = pcxHeader.Hres; - info.yDPI = pcxHeader.Vres; - - if (info.nEscape == -1){ - head.biWidth = Width; - head.biHeight= Height; - info.dwType = CXIMAGE_FORMAT_PCX; - return true; - } - - // Check that we can handle this image format - if (pcxHeader.ColorPlanes > 4) - cx_throw("Can't handle image with more than 4 planes"); - - // Create the image - if (pcxHeader.ColorPlanes >= 3 && pcxHeader.BitsPerPixel == 8){ - Create (Width, Height, 24, CXIMAGE_FORMAT_PCX); -#if CXIMAGE_SUPPORT_ALPHA - if (pcxHeader.ColorPlanes==4) AlphaCreate(); -#endif //CXIMAGE_SUPPORT_ALPHA - } else if (pcxHeader.ColorPlanes == 4 && pcxHeader.BitsPerPixel == 1) - Create (Width, Height, 4, CXIMAGE_FORMAT_PCX); - else - Create (Width, Height, pcxHeader.BitsPerPixel, CXIMAGE_FORMAT_PCX); - - if (info.nEscape) cx_throw("Cancelled"); // - cancel decoding - - //Read the image and check if it's ok - nbytes = pcxHeader.BytesPerLine * pcxHeader.ColorPlanes * Height; - lpHead1 = pcximage = (BYTE*)malloc(nbytes); - while (nbytes > 0){ - if (hFile == NULL || hFile->Eof()) cx_throw("corrupted PCX"); - - hFile->Read(&c,1,1); - if ((c & 0XC0) != 0XC0){ // Repeated group - *pcximage++ = c; - --nbytes; - continue; - } - count = c & 0X3F; // extract count - hFile->Read(&c,1,1); - if (count > nbytes) cx_throw("repeat count spans end of image"); - - nbytes -= count; - while (--count >=0) *pcximage++ = c; - } - pcximage = lpHead1; - - //store the palette - for (i = 0; i < 16; i++){ - ColorMap[i][0] = pcxHeader.ColorMap[i][0]; - ColorMap[i][1] = pcxHeader.ColorMap[i][1]; - ColorMap[i][2] = pcxHeader.ColorMap[i][2]; - } - if (pcxHeader.BitsPerPixel == 8 && pcxHeader.ColorPlanes == 1){ - hFile->Read(&c,1,1); - if (c != PCX_256_COLORS) cx_throw("bad color map signature"); - - for (i = 0; i < PCX_MAXCOLORS; i++){ - hFile->Read(&ColorMap[i][0],1,1); - hFile->Read(&ColorMap[i][1],1,1); - hFile->Read(&ColorMap[i][2],1,1); - } - } - if (pcxHeader.BitsPerPixel == 1 && pcxHeader.ColorPlanes == 1){ - ColorMap[0][0] = ColorMap[0][1] = ColorMap[0][2] = 0; - ColorMap[1][0] = ColorMap[1][1] = ColorMap[1][2] = 255; - } - - for (DWORD idx=0; idx - cancel decoding - - y2=Height-1-y; - pcxpixels = lpHead2; - pcxplanes = pcximage + (y * pcxHeader.BytesPerLine * pcxHeader.ColorPlanes); - - if (pcxHeader.ColorPlanes == 3 && pcxHeader.BitsPerPixel == 8){ - // Deal with 24 bit color image - for (x = 0; x < Width; x++){ - SetPixelColor(x,y2,RGB(pcxplanes[x],pcxplanes[pcxHeader.BytesPerLine + x],pcxplanes[2*pcxHeader.BytesPerLine + x])); - } - continue; -#if CXIMAGE_SUPPORT_ALPHA - } else if (pcxHeader.ColorPlanes == 4 && pcxHeader.BitsPerPixel == 8){ - for (x = 0; x < Width; x++){ - SetPixelColor(x,y2,RGB(pcxplanes[x],pcxplanes[pcxHeader.BytesPerLine + x],pcxplanes[2*pcxHeader.BytesPerLine + x])); - AlphaSet(x,y2,pcxplanes[3*pcxHeader.BytesPerLine + x]); - } - continue; -#endif //CXIMAGE_SUPPORT_ALPHA - } else if (pcxHeader.ColorPlanes == 1) { - if (!PCX_UnpackPixels(pcxpixels, pcxplanes, pcxHeader.BytesPerLine, pcxHeader.ColorPlanes, pcxHeader.BitsPerPixel)){ - cx_throw("PCX_UnpackPixels: Can't handle packed pixels with more than 1 plane"); - } - } else { - if (!PCX_PlanesToPixels(pcxpixels, pcxplanes, pcxHeader.BytesPerLine, pcxHeader.ColorPlanes, pcxHeader.BitsPerPixel)){ - cx_throw("PCX_PlanesToPixels: more than 4 planes or more than 1 bit per pixel"); - } - } - for (x = 0; x < Width; x++) SetPixelIndex(x,y2,pcxpixels[x]); - } - - } cx_catch { - if (strcmp(message,"")) strncpy(info.szLastError,message,255); - if (lpHead1){ free(lpHead1); lpHead1 = NULL; } - if (lpHead2){ free(lpHead2); lpHead2 = NULL; } - return false; - } - if (lpHead1){ free(lpHead1); lpHead1 = NULL; } - if (lpHead2){ free(lpHead2); lpHead2 = NULL; } - return true; -} -//////////////////////////////////////////////////////////////////////////////// -#endif //CXIMAGE_SUPPORT_DECODE -//////////////////////////////////////////////////////////////////////////////// -#if CXIMAGE_SUPPORT_ENCODE -//////////////////////////////////////////////////////////////////////////////// -bool CxImagePCX::Encode(CxFile * hFile) -{ - if (EncodeSafeCheck(hFile)) return false; - - cx_try - { - PCXHEADER pcxHeader; - memset(&pcxHeader,0,sizeof(pcxHeader)); - pcxHeader.Manufacturer = PCX_MAGIC; - pcxHeader.Version = 5; - pcxHeader.Encoding = 1; - pcxHeader.Xmin = 0; - pcxHeader.Ymin = 0; - pcxHeader.Xmax = (WORD)head.biWidth-1; - pcxHeader.Ymax = (WORD)head.biHeight-1; - pcxHeader.Hres = (WORD)info.xDPI; - pcxHeader.Vres = (WORD)info.yDPI; - pcxHeader.Reserved = 0; - pcxHeader.PaletteType = head.biClrUsed==0; - - switch(head.biBitCount){ - case 24: - case 8: - { - pcxHeader.BitsPerPixel = 8; - pcxHeader.ColorPlanes = head.biClrUsed==0 ? 3 : 1; -#if CXIMAGE_SUPPORT_ALPHA - if (AlphaIsValid() && head.biClrUsed==0) pcxHeader.ColorPlanes =4; -#endif //CXIMAGE_SUPPORT_ALPHA - pcxHeader.BytesPerLine = (WORD)head.biWidth; - break; - } - default: //(4 1) - pcxHeader.BitsPerPixel = 1; - pcxHeader.ColorPlanes = head.biClrUsed==16 ? 4 : 1; - pcxHeader.BytesPerLine = (WORD)((head.biWidth * pcxHeader.BitsPerPixel + 7)>>3); - } - - if (pcxHeader.BitsPerPixel == 1 && pcxHeader.ColorPlanes == 1){ - pcxHeader.ColorMap[0][0] = pcxHeader.ColorMap[0][1] = pcxHeader.ColorMap[0][2] = 0; - pcxHeader.ColorMap[1][0] = pcxHeader.ColorMap[1][1] = pcxHeader.ColorMap[1][2] = 255; - } - if (pcxHeader.BitsPerPixel == 1 && pcxHeader.ColorPlanes == 4){ - RGBQUAD c; - for (int i = 0; i < 16; i++){ - c=GetPaletteColor(i); - pcxHeader.ColorMap[i][0] = c.rgbRed; - pcxHeader.ColorMap[i][1] = c.rgbGreen; - pcxHeader.ColorMap[i][2] = c.rgbBlue; - } - } - - pcxHeader.BytesPerLine = (pcxHeader.BytesPerLine + 1)&(~1); - - PCX_toh(&pcxHeader); - if (hFile->Write(&pcxHeader, sizeof(pcxHeader), 1) == 0 ) - cx_throw("cannot write PCX header"); - PCX_toh(&pcxHeader); - - CxMemFile buffer; - buffer.Open(); - - BYTE c,n; - long x,y; - if (head.biClrUsed==0){ - for (y = head.biHeight-1; y >=0 ; y--){ - for (int p=0; pWrite(buffer.GetBuffer(false),buffer.Tell(),1); - - } else if (head.biBitCount==8) { - - for (y = head.biHeight-1; y >=0 ; y--){ - c=n=0; - for (x = 0; xWrite(buffer.GetBuffer(false),buffer.Tell(),1); - - if (head.biBitCount == 8){ - hFile->PutC(0x0C); - BYTE* pal = (BYTE*)malloc(768); - RGBQUAD c; - for (int i=0;i<256;i++){ - c=GetPaletteColor(i); - pal[3*i+0] = c.rgbRed; - pal[3*i+1] = c.rgbGreen; - pal[3*i+2] = c.rgbBlue; - } - hFile->Write(pal,768,1); - free(pal); - } - } else { //(head.biBitCount==4) || (head.biBitCount==1) - - RGBQUAD *rgb = GetPalette(); - bool binvert = false; - if (CompareColors(&rgb[0],&rgb[1])>0) binvert=(head.biBitCount==1); - - BYTE* plane = (BYTE*)malloc(pcxHeader.BytesPerLine); - BYTE* raw = (BYTE*)malloc(head.biWidth); - - for(y = head.biHeight-1; y >=0 ; y--) { - - for( x = 0; x < head.biWidth; x++) raw[x] = (BYTE)GetPixelIndex(x,y); - - if (binvert) for( x = 0; x < head.biWidth; x++) raw[x] = 1-raw[x]; - - for( x = 0; x < pcxHeader.ColorPlanes; x++ ) { - PCX_PixelsToPlanes(raw, head.biWidth, plane, x); - PCX_PackPlanes(plane, pcxHeader.BytesPerLine, buffer); - } - } - - free(plane); - free(raw); - - hFile->Write(buffer.GetBuffer(false),buffer.Tell(),1); - - } - - } cx_catch { - if (strcmp(message,"")) strncpy(info.szLastError,message,255); - return false; - } - return true; -} -//////////////////////////////////////////////////////////////////////////////// -#endif // CXIMAGE_SUPPORT_ENCODE -//////////////////////////////////////////////////////////////////////////////// -// Convert multi-plane format into 1 pixel per byte -// from unpacked file data bitplanes[] into pixel row pixels[] -// image Height rows, with each row having planes image planes each -// bytesperline bytes -bool CxImagePCX::PCX_PlanesToPixels(BYTE * pixels, BYTE * bitplanes, short bytesperline, short planes, short bitsperpixel) -{ - int i, j, npixels; - BYTE * p; - if (planes > 4) return false; - if (bitsperpixel != 1) return false; - - // Clear the pixel buffer - npixels = (bytesperline * 8) / bitsperpixel; - p = pixels; - while (--npixels >= 0) *p++ = 0; - - // Do the format conversion - for (i = 0; i < planes; i++){ - int pixbit, bits, mask; - p = pixels; - pixbit = (1 << i); // pixel bit for this plane - for (j = 0; j < bytesperline; j++){ - bits = *bitplanes++; - for (mask = 0X80; mask != 0; mask >>= 1, p++) - if (bits & mask) *p |= pixbit; - } - } - return true; -} -//////////////////////////////////////////////////////////////////////////////// -// convert packed pixel format into 1 pixel per byte -// from unpacked file data bitplanes[] into pixel row pixels[] -// image Height rows, with each row having planes image planes each -// bytesperline bytes -bool CxImagePCX::PCX_UnpackPixels(BYTE * pixels, BYTE * bitplanes, short bytesperline, short planes, short bitsperpixel) -{ - register int bits; - if (planes != 1) return false; - - if (bitsperpixel == 8){ // 8 bits/pixels, no unpacking needed - while (bytesperline-- > 0) *pixels++ = *bitplanes++; - } else if (bitsperpixel == 4){ // 4 bits/pixel, two pixels per byte - while (bytesperline-- > 0){ - bits = *bitplanes++; - *pixels++ = (BYTE)((bits >> 4) & 0X0F); - *pixels++ = (BYTE)((bits) & 0X0F); - } - } else if (bitsperpixel == 2){ // 2 bits/pixel, four pixels per byte - while (bytesperline-- > 0){ - bits = *bitplanes++; - *pixels++ = (BYTE)((bits >> 6) & 0X03); - *pixels++ = (BYTE)((bits >> 4) & 0X03); - *pixels++ = (BYTE)((bits >> 2) & 0X03); - *pixels++ = (BYTE)((bits) & 0X03); - } - } else if (bitsperpixel == 1){ // 1 bits/pixel, 8 pixels per byte - while (bytesperline-- > 0){ - bits = *bitplanes++; - *pixels++ = ((bits & 0X80) != 0); - *pixels++ = ((bits & 0X40) != 0); - *pixels++ = ((bits & 0X20) != 0); - *pixels++ = ((bits & 0X10) != 0); - *pixels++ = ((bits & 0X08) != 0); - *pixels++ = ((bits & 0X04) != 0); - *pixels++ = ((bits & 0X02) != 0); - *pixels++ = ((bits & 0X01) != 0); - } - } - return true; -} -//////////////////////////////////////////////////////////////////////////////// -/* PCX_PackPixels(const long p,BYTE &c, BYTE &n, long &l, CxFile &f) - * p = current pixel (-1 ends the line -2 ends odd line) - * c = previous pixel - * n = number of consecutive pixels - */ -void CxImagePCX::PCX_PackPixels(const long p,BYTE &c, BYTE &n, CxFile &f) -{ - if (p!=c && n){ - if (n==1 && c<0xC0){ - f.PutC(c); - } else { - f.PutC(0xC0|n); - f.PutC(c); - } - n=0; - } - if (n==0x3F) { - f.PutC(0xFF); - f.PutC(c); - n=0; - } - if (p==-2) f.PutC(0); - c=(BYTE)p; - n++; -} -//////////////////////////////////////////////////////////////////////////////// -void CxImagePCX::PCX_PackPlanes(BYTE* buff, const long size, CxFile &f) -{ - BYTE *start,*end; - BYTE c, previous, count; - - start = buff; - end = buff + size; - previous = *start++; - count = 1; - - while (start < end) { - c = *start++; - if (c == previous && count < 63) { - ++count; - continue; - } - - if (count > 1 || (previous & 0xc0) == 0xc0) { - f.PutC( count | 0xc0 ); - } - f.PutC(previous); - previous = c; - count = 1; - } - - if (count > 1 || (previous & 0xc0) == 0xc0) { - count |= 0xc0; - f.PutC(count); - } - f.PutC(previous); -} -//////////////////////////////////////////////////////////////////////////////// -void CxImagePCX::PCX_PixelsToPlanes(BYTE* raw, long width, BYTE* buf, long plane) -{ - int cbit, x, mask; - unsigned char *cp = buf-1; - - mask = 1 << plane; - cbit = -1; - for( x = 0; x < width; x++ ) { - if( cbit < 0 ) { - cbit = 7; - *++cp = 0; - } - if( raw[x] & mask ) - *cp |= (1<Xmin = ntohs(p->Xmin); - p->Ymin = ntohs(p->Ymin); - p->Xmax = ntohs(p->Xmax); - p->Ymax = ntohs(p->Ymax); - p->Hres = ntohs(p->Hres); - p->Vres = ntohs(p->Vres); - p->BytesPerLine = ntohs(p->BytesPerLine); - p->PaletteType = ntohs(p->PaletteType); -} -//////////////////////////////////////////////////////////////////////////////// -#endif // CXIMAGE_SUPPORT_PCX diff --git a/src/3rdParty/CxImage/CxImage/ximapcx.h b/src/3rdParty/CxImage/CxImage/ximapcx.h deleted file mode 100644 index 6e18f1561b..0000000000 --- a/src/3rdParty/CxImage/CxImage/ximapcx.h +++ /dev/null @@ -1,64 +0,0 @@ -/* - * File: ximapcx.h - * Purpose: PCX Image Class Loader and Writer - */ -/* ========================================================== - * CxImagePCX (c) 05/Jan/2002 Davide Pizzolato - www.xdp.it - * For conditions of distribution and use, see copyright notice in ximage.h - * - * Parts of the code come from Paintlib: Copyright (c) 1996-1998 Ulrich von Zadow - * ========================================================== - */ -#if !defined(__ximaPCX_h) -#define __ximaPCX_h - -#include "ximage.h" - -#if CXIMAGE_SUPPORT_PCX - -class CxImagePCX: public CxImage -{ -// PCX Image File -#pragma pack(1) -typedef struct tagPCXHEADER -{ - char Manufacturer; // always 0X0A - char Version; // version number - char Encoding; // always 1 - char BitsPerPixel; // color bits - WORD Xmin, Ymin; // image origin - WORD Xmax, Ymax; // image dimensions - WORD Hres, Vres; // resolution values - BYTE ColorMap[16][3]; // color palette - char Reserved; - char ColorPlanes; // color planes - WORD BytesPerLine; // line buffer size - WORD PaletteType; // grey or color palette - char Filter[58]; -} PCXHEADER; -#pragma pack() - -public: - CxImagePCX(): CxImage(CXIMAGE_FORMAT_PCX) {} - -// bool Load(const TCHAR * imageFileName){ return CxImage::Load(imageFileName,CXIMAGE_FORMAT_PCX);} -// bool Save(const TCHAR * imageFileName){ return CxImage::Save(imageFileName,CXIMAGE_FORMAT_PCX);} - bool Decode(CxFile * hFile); - bool Decode(FILE *hFile) { CxIOFile file(hFile); return Decode(&file); } - -#if CXIMAGE_SUPPORT_ENCODE - bool Encode(CxFile * hFile); - bool Encode(FILE *hFile) { CxIOFile file(hFile); return Encode(&file); } -#endif // CXIMAGE_SUPPORT_ENCODE -protected: - bool PCX_PlanesToPixels(BYTE * pixels, BYTE * bitplanes, short bytesperline, short planes, short bitsperpixel); - bool PCX_UnpackPixels(BYTE * pixels, BYTE * bitplanes, short bytesperline, short planes, short bitsperpixel); - void PCX_PackPixels(const long p,BYTE &c, BYTE &n, CxFile &f); - void PCX_PackPlanes(BYTE* buff, const long size, CxFile &f); - void PCX_PixelsToPlanes(BYTE* raw, long width, BYTE* buf, long plane); - void PCX_toh(PCXHEADER* p); -}; - -#endif - -#endif diff --git a/src/3rdParty/CxImage/CxImage/ximapng.cpp b/src/3rdParty/CxImage/CxImage/ximapng.cpp deleted file mode 100644 index f91bf27c7e..0000000000 --- a/src/3rdParty/CxImage/CxImage/ximapng.cpp +++ /dev/null @@ -1,536 +0,0 @@ -/* - * File: ximapng.cpp - * Purpose: Platform Independent PNG Image Class Loader and Writer - * 07/Aug/2001 Davide Pizzolato - www.xdp.it - * CxImage version 6.0.0 02/Feb/2008 - */ - -#include "ximapng.h" - -#if CXIMAGE_SUPPORT_PNG - -#include "ximaiter.h" - -//////////////////////////////////////////////////////////////////////////////// -void CxImagePNG::ima_png_error(png_struct *png_ptr, char *message) -{ - strcpy(info.szLastError,message); - longjmp(png_ptr->jmpbuf, 1); -} -//////////////////////////////////////////////////////////////////////////////// -#if CXIMAGE_SUPPORT_DECODE -//////////////////////////////////////////////////////////////////////////////// -void CxImagePNG::expand2to4bpp(BYTE* prow) -{ - BYTE *psrc,*pdst; - BYTE pos,idx; - for(long x=head.biWidth-1;x>=0;x--){ - psrc = prow + ((2*x)>>3); - pdst = prow + ((4*x)>>3); - pos = (BYTE)(2*(3-x%4)); - idx = (BYTE)((*psrc & (0x03<>pos); - pos = (BYTE)(4*(1-x%2)); - *pdst &= ~(0x0F<jmpbuf)) { - /* Free all of the memory associated with the png_ptr and info_ptr */ - delete [] row_pointers; - png_destroy_read_struct(&png_ptr, &info_ptr, (png_infopp)NULL); - cx_throw(""); - } - - // use custom I/O functions - png_set_read_fn(png_ptr, hFile, /*(png_rw_ptr)*/user_read_data); - png_set_error_fn(png_ptr,info.szLastError,/*(png_error_ptr)*/user_error_fn,NULL); - - /* read the file information */ - png_read_info(png_ptr, info_ptr); - - if (info.nEscape == -1){ - head.biWidth = info_ptr->width; - head.biHeight= info_ptr->height; - info.dwType = CXIMAGE_FORMAT_PNG; - longjmp(png_ptr->jmpbuf, 1); - } - - /* calculate new number of channels */ - int channels=0; - switch(info_ptr->color_type){ - case PNG_COLOR_TYPE_GRAY: - case PNG_COLOR_TYPE_PALETTE: - channels = 1; - break; - case PNG_COLOR_TYPE_GRAY_ALPHA: - channels = 2; - break; - case PNG_COLOR_TYPE_RGB: - channels = 3; - break; - case PNG_COLOR_TYPE_RGB_ALPHA: - channels = 4; - break; - default: - strcpy(info.szLastError,"unknown PNG color type"); - longjmp(png_ptr->jmpbuf, 1); - } - - //find the right pixel depth used for cximage - int pixel_depth = info_ptr->pixel_depth; - if (channels == 1 && pixel_depth>8) pixel_depth=8; - if (channels == 2) pixel_depth=8; - if (channels >= 3) pixel_depth=24; - - if (!Create(info_ptr->width, info_ptr->height, pixel_depth, CXIMAGE_FORMAT_PNG)){ - longjmp(png_ptr->jmpbuf, 1); - } - - /* get metrics */ - switch (info_ptr->phys_unit_type) - { - case PNG_RESOLUTION_UNKNOWN: - SetXDPI(info_ptr->x_pixels_per_unit); - SetYDPI(info_ptr->y_pixels_per_unit); - break; - case PNG_RESOLUTION_METER: - SetXDPI((long)floor(info_ptr->x_pixels_per_unit * 254.0 / 10000.0 + 0.5)); - SetYDPI((long)floor(info_ptr->y_pixels_per_unit * 254.0 / 10000.0 + 0.5)); - break; - } - - if (info_ptr->num_palette>0){ - SetPalette((rgb_color*)info_ptr->palette,info_ptr->num_palette); - SetClrImportant(info_ptr->num_palette); - } else if (info_ptr->bit_depth ==2) { // needed for 2 bpp grayscale PNGs - SetPaletteColor(0,0,0,0); - SetPaletteColor(1,85,85,85); - SetPaletteColor(2,170,170,170); - SetPaletteColor(3,255,255,255); - } else SetGrayPalette(); // needed for grayscale PNGs - - int nshift = max(0,(info_ptr->bit_depth>>3)-1)<<3; - - if (info_ptr->num_trans!=0){ //palette transparency - if (info_ptr->num_trans==1){ - if (info_ptr->color_type == PNG_COLOR_TYPE_PALETTE){ - info.nBkgndIndex = info_ptr->trans_values.index; - } else{ - info.nBkgndIndex = info_ptr->trans_values.gray>>nshift; - } - } - if (info_ptr->num_trans>1){ - RGBQUAD* pal=GetPalette(); - if (pal){ - DWORD ip; - for (ip=0;ipnum_trans);ip++) - pal[ip].rgbReserved=info_ptr->trans[ip]; - for (ip=info_ptr->num_trans;iptrans_values.red>>nshift); - info.nBkgndColor.rgbGreen = (BYTE)(info_ptr->trans_values.green>>nshift); - info.nBkgndColor.rgbBlue = (BYTE)(info_ptr->trans_values.blue>>nshift); - info.nBkgndColor.rgbReserved = 0; - info.nBkgndIndex = 0; - } - } - - int alpha_present = (channels - 1) % 2; - if (alpha_present){ -#if CXIMAGE_SUPPORT_ALPHA // - AlphaCreate(); -#else - png_set_strip_alpha(png_ptr); -#endif //CXIMAGE_SUPPORT_ALPHA - } - - // - flip the RGB pixels to BGR (or RGBA to BGRA) - if (info_ptr->color_type & PNG_COLOR_MASK_COLOR){ - png_set_bgr(png_ptr); - } - - // - handle cancel - if (info.nEscape) longjmp(png_ptr->jmpbuf, 1); - - // row_bytes is the width x number of channels x (bit-depth / 8) - row_pointers = new BYTE[info_ptr->rowbytes + 8]; - - // turn on interlace handling - int number_passes = png_set_interlace_handling(png_ptr); - - if (number_passes>1){ - SetCodecOption(1); - } else { - SetCodecOption(0); - } - - int chan_offset = info_ptr->bit_depth >> 3; - int pixel_offset = info_ptr->pixel_depth >> 3; - - for (int pass=0; pass < number_passes; pass++) { - iter.Upset(); - int y=0; - do { - - // - handle cancel - if (info.nEscape) longjmp(png_ptr->jmpbuf, 1); - -#if CXIMAGE_SUPPORT_ALPHA // - if (AlphaIsValid()) { - - //compute the correct position of the line - long ax,ay; - ay = head.biHeight-1-y; - BYTE* prow= iter.GetRow(ay); - - //recover data from previous scan - if (info_ptr->interlace_type && pass>0 && pass!=7){ - for(ax=0;ax RGB + A - for(ax=0;axinterlace_type && pass>0){ - iter.GetRow(row_pointers, info_ptr->rowbytes); - //re-expand buffer for images with bit depth > 8 - if (info_ptr->bit_depth > 8){ - for(long ax=(head.biWidth*channels-1);ax>=0;ax--) - row_pointers[ax*chan_offset] = row_pointers[ax]; - } - } - - //read next row - png_read_row(png_ptr, row_pointers, NULL); - - //shrink 16 bit depth images down to 8 bits - if (info_ptr->bit_depth > 8){ - for(long ax=0;ax<(head.biWidth*channels);ax++) - row_pointers[ax] = row_pointers[ax*chan_offset]; - } - - //copy the pixels - iter.SetRow(row_pointers, info_ptr->rowbytes); - // expand 2 bpp images only in the last pass - if (info_ptr->bit_depth==2 && pass==(number_passes-1)) - expand2to4bpp(iter.GetRow()); - - //go on - iter.PrevRow(); - } - - y++; - } while(yjmpbuf)){ - /* If we get here, we had a problem reading the file */ - if (info_ptr->palette) free(info_ptr->palette); - png_destroy_write_struct(&png_ptr, (png_infopp)&info_ptr); - cx_throw("Error saving PNG file"); - } - - /* set up the output control */ - //png_init_io(png_ptr, hFile); - - // use custom I/O functions - png_set_write_fn(png_ptr,hFile,/*(png_rw_ptr)*/user_write_data,/*(png_flush_ptr)*/user_flush_data); - - /* set the file information here */ - info_ptr->width = GetWidth(); - info_ptr->height = GetHeight(); - info_ptr->pixel_depth = (BYTE)GetBpp(); - info_ptr->channels = (GetBpp()>8) ? (BYTE)3: (BYTE)1; - info_ptr->bit_depth = (BYTE)(GetBpp()/info_ptr->channels); - info_ptr->compression_type = info_ptr->filter_type = 0; - info_ptr->valid = 0; - - switch(GetCodecOption(CXIMAGE_FORMAT_PNG)){ - case 1: - info_ptr->interlace_type = PNG_INTERLACE_ADAM7; - break; - default: - info_ptr->interlace_type = PNG_INTERLACE_NONE; - } - - /* set compression level */ - //png_set_compression_level(png_ptr, Z_BEST_COMPRESSION); - - bool bGrayScale = IsGrayScale(); - - if (GetNumColors()){ - if (bGrayScale){ - info_ptr->color_type = PNG_COLOR_TYPE_GRAY; - } else { - info_ptr->color_type = PNG_COLOR_TYPE_PALETTE; - } - } else { - info_ptr->color_type = PNG_COLOR_TYPE_RGB; - } -#if CXIMAGE_SUPPORT_ALPHA - if (AlphaIsValid()){ - info_ptr->color_type |= PNG_COLOR_MASK_ALPHA; - info_ptr->channels++; - info_ptr->bit_depth = 8; - info_ptr->pixel_depth += 8; - } -#endif - - /* set background */ - png_color_16 image_background={ 0, 255, 255, 255, 0 }; - RGBQUAD tc = GetTransColor(); - if (info.nBkgndIndex>=0) { - image_background.blue = tc.rgbBlue; - image_background.green = tc.rgbGreen; - image_background.red = tc.rgbRed; - } - png_set_bKGD(png_ptr, info_ptr, &image_background); - - /* set metrics */ - png_set_pHYs(png_ptr, info_ptr, head.biXPelsPerMeter, head.biYPelsPerMeter, PNG_RESOLUTION_METER); - - png_set_IHDR(png_ptr, info_ptr, info_ptr->width, info_ptr->height, info_ptr->bit_depth, - info_ptr->color_type, info_ptr->interlace_type, - PNG_COMPRESSION_TYPE_BASE, PNG_FILTER_TYPE_BASE); - - // simple transparency - if (info.nBkgndIndex >= 0){ - info_ptr->num_trans = 1; - info_ptr->valid |= PNG_INFO_tRNS; - info_ptr->trans = trans; - info_ptr->trans_values.index = (BYTE)info.nBkgndIndex; - info_ptr->trans_values.red = tc.rgbRed; - info_ptr->trans_values.green = tc.rgbGreen; - info_ptr->trans_values.blue = tc.rgbBlue; - info_ptr->trans_values.gray = info_ptr->trans_values.index; - - // the transparency indexes start from 0 for non grayscale palette - if (!bGrayScale && head.biClrUsed && info.nBkgndIndex) - SwapIndex(0,(BYTE)info.nBkgndIndex); - } - - /* set the palette if there is one */ - if (GetPalette()){ - if (!bGrayScale){ - info_ptr->valid |= PNG_INFO_PLTE; - } - - int nc = GetClrImportant(); - if (nc==0) nc = GetNumColors(); - - if (info.bAlphaPaletteEnabled){ - for(WORD ip=0; ipnum_trans = (WORD)nc; - info_ptr->valid |= PNG_INFO_tRNS; - info_ptr->trans = trans; - } - - // copy the palette colors - info_ptr->palette = new png_color[nc]; - info_ptr->num_palette = (png_uint_16) nc; - for (int i=0; ipalette[i].red, &info_ptr->palette[i].green, &info_ptr->palette[i].blue); - } - -#if CXIMAGE_SUPPORT_ALPHA // - //Merge the transparent color with the alpha channel - if (AlphaIsValid() && head.biBitCount==24 && info.nBkgndIndex>=0){ - for(long y=0; y < head.biHeight; y++){ - for(long x=0; x < head.biWidth ; x++){ - RGBQUAD c=GetPixelColor(x,y,false); - if (*(long*)&c==*(long*)&tc) - AlphaSet(x,y,0); - } } } -#endif // CXIMAGE_SUPPORT_ALPHA // - - int row_size = max(info.dwEffWidth, info_ptr->width*info_ptr->channels*(info_ptr->bit_depth/8)); - info_ptr->rowbytes = row_size; - BYTE *row_pointers = new BYTE[row_size]; - - /* write the file information */ - png_write_info(png_ptr, info_ptr); - - //interlace handling - int num_pass = png_set_interlace_handling(png_ptr); - for (int pass = 0; pass < num_pass; pass++){ - //write image - iter.Upset(); - long ay=head.biHeight-1; - RGBQUAD c; - do { -#if CXIMAGE_SUPPORT_ALPHA // - if (AlphaIsValid()){ - for (long ax=head.biWidth-1; ax>=0;ax--){ - c = BlindGetPixelColor(ax,ay); - int px = ax * info_ptr->channels; - if (!bGrayScale){ - row_pointers[px++]=c.rgbRed; - row_pointers[px++]=c.rgbGreen; - } - row_pointers[px++]=c.rgbBlue; - row_pointers[px] = AlphaGet(ax,ay); - } - png_write_row(png_ptr, row_pointers); - ay--; - } - else -#endif //CXIMAGE_SUPPORT_ALPHA // - { - iter.GetRow(row_pointers, row_size); - if (info_ptr->color_type == PNG_COLOR_TYPE_RGB) //HACK BY OP - RGBtoBGR(row_pointers, row_size); - png_write_row(png_ptr, row_pointers); - } - } while(iter.PrevRow()); - } - - delete [] row_pointers; - - //if necessary, restore the original palette - if (!bGrayScale && head.biClrUsed && info.nBkgndIndex>0) - SwapIndex((BYTE)info.nBkgndIndex,0); - - /* It is REQUIRED to call this to finish writing the rest of the file */ - png_write_end(png_ptr, info_ptr); - - /* if you malloced the palette, free it here */ - if (info_ptr->palette){ - delete [] (info_ptr->palette); - info_ptr->palette = NULL; - } - - /* clean up after the write, and free any memory allocated */ - png_destroy_write_struct(&png_ptr, (png_infopp)&info_ptr); - - } cx_catch { - if (strcmp(message,"")) strncpy(info.szLastError,message,255); - return FALSE; - } - /* that's it */ - return TRUE; -} -//////////////////////////////////////////////////////////////////////////////// -#endif // CXIMAGE_SUPPORT_ENCODE -//////////////////////////////////////////////////////////////////////////////// -#endif // CXIMAGE_SUPPORT_PNG diff --git a/src/3rdParty/CxImage/CxImage/ximapng.h b/src/3rdParty/CxImage/CxImage/ximapng.h deleted file mode 100644 index 3fddf5b64f..0000000000 --- a/src/3rdParty/CxImage/CxImage/ximapng.h +++ /dev/null @@ -1,74 +0,0 @@ -/* - * File: ximapng.h - * Purpose: PNG Image Class Loader and Writer - */ -/* ========================================================== - * CxImagePNG (c) 07/Aug/2001 Davide Pizzolato - www.xdp.it - * For conditions of distribution and use, see copyright notice in ximage.h - * - * Special thanks to Troels Knakkergaard for new features, enhancements and bugfixes - * - * original CImagePNG and CImageIterator implementation are: - * Copyright: (c) 1995, Alejandro Aguilar Sierra - * - * libpng Copyright (c) 1998-2003 Glenn Randers-Pehrson - * ========================================================== - */ -#if !defined(__ximaPNG_h) -#define __ximaPNG_h - -#include "ximage.h" - -#if CXIMAGE_SUPPORT_PNG - -extern "C" { -#include "../png/png.h" -} - -class CxImagePNG: public CxImage -{ -public: - CxImagePNG(): CxImage(CXIMAGE_FORMAT_PNG) {} - -// bool Load(const TCHAR * imageFileName){ return CxImage::Load(imageFileName,CXIMAGE_FORMAT_PNG);} -// bool Save(const TCHAR * imageFileName){ return CxImage::Save(imageFileName,CXIMAGE_FORMAT_PNG);} - bool Decode(CxFile * hFile); - bool Decode(FILE *hFile) { CxIOFile file(hFile); return Decode(&file); } - -#if CXIMAGE_SUPPORT_ENCODE - bool Encode(CxFile * hFile); - bool Encode(FILE *hFile) { CxIOFile file(hFile); return Encode(&file); } -#endif // CXIMAGE_SUPPORT_ENCODE - -protected: - void ima_png_error(png_struct *png_ptr, char *message); - void expand2to4bpp(BYTE* prow); - - static void PNGAPI user_read_data(png_structp png_ptr, png_bytep data, png_size_t length) - { - CxFile* hFile = (CxFile*)png_get_io_ptr(png_ptr); - if (hFile == NULL || hFile->Read(data,1,length) != length) png_error(png_ptr, "Read Error"); - } - - static void PNGAPI user_write_data(png_structp png_ptr, png_bytep data, png_size_t length) - { - CxFile* hFile = (CxFile*)png_get_io_ptr(png_ptr); - if (hFile == NULL || hFile->Write(data,1,length) != length) png_error(png_ptr, "Write Error"); - } - - static void PNGAPI user_flush_data(png_structp png_ptr) - { - CxFile* hFile = (CxFile*)png_get_io_ptr(png_ptr); - if (hFile == NULL || !hFile->Flush()) png_error(png_ptr, "Flush Error"); - } - - static void PNGAPI user_error_fn(png_structp png_ptr,png_const_charp error_msg) - { - strncpy((char*)png_ptr->error_ptr,error_msg,255); - longjmp(png_ptr->jmpbuf, 1); - } -}; - -#endif - -#endif diff --git a/src/3rdParty/CxImage/CxImage/ximaraw.cpp b/src/3rdParty/CxImage/CxImage/ximaraw.cpp deleted file mode 100644 index ca50750206..0000000000 --- a/src/3rdParty/CxImage/CxImage/ximaraw.cpp +++ /dev/null @@ -1,228 +0,0 @@ -/* - * File: ximaraw.cpp - * Purpose: Platform Independent RAW Image Class Loader - * 16/Dec/2007 Davide Pizzolato - www.xdp.it - * CxImage version 6.0.0 02/Feb/2008 - * - * CxImageRAW (c) May/2006 pdw63 - * - * based on dcraw.c -- Dave Coffin's raw photo decoder - * Copyright 1997-2007 by Dave Coffin, dcoffin a cybercom o net - */ - -#include "ximaraw.h" - -#if CXIMAGE_SUPPORT_RAW - -//////////////////////////////////////////////////////////////////////////////// -#if CXIMAGE_SUPPORT_DECODE -//////////////////////////////////////////////////////////////////////////////// -bool CxImageRAW::Decode(CxFile *hFile) -{ - if (hFile==NULL) - return false; - - DCRAW dcr; - - cx_try - { - // initialization - dcr_init_dcraw(&dcr); - - dcr.opt.user_qual = GetCodecOption(CXIMAGE_FORMAT_RAW) & 0x03; - - // setup variables for debugging - char szClass[] = "CxImageRAW"; - dcr.ifname = szClass; - dcr.sz_error = info.szLastError; - - // setup library options, see dcr_print_manual for the available switches - // call dcr_parse_command_line_options(&dcr,0,0,0) to set default options - // if (dcr_parse_command_line_options(&dcr,argc,argv,&arg)) - if (dcr_parse_command_line_options(&dcr,0,0,0)){ - cx_throw("CxImageRAW: unknown option"); - } - - // set return point for error handling - if (setjmp (dcr.failure)) { - cx_throw(""); - } - - // install file manager - CxFileRaw src(hFile,&dcr); - - // check file header - dcr_identify(&dcr); - - if(!dcr.is_raw){ - cx_throw("CxImageRAW: not a raw image"); - } - - if (dcr.load_raw == NULL) { - cx_throw("CxImageRAW: missing raw decoder"); - } - - // verify special case - if (dcr.load_raw == dcr_kodak_ycbcr_load_raw) { - dcr.height += dcr.height & 1; - dcr.width += dcr.width & 1; - } - - if (info.nEscape == -1){ - head.biWidth = dcr.width; - head.biHeight= dcr.height; - info.dwType = CXIMAGE_FORMAT_RAW; - cx_throw("output dimensions returned"); - } - - // shrinked decoding available and requested? - dcr.shrink = dcr.filters && (dcr.opt.half_size || dcr.opt.threshold || dcr.opt.aber[0] != 1 || dcr.opt.aber[2] != 1); - dcr.iheight = (dcr.height + dcr.shrink) >> dcr.shrink; - dcr.iwidth = (dcr.width + dcr.shrink) >> dcr.shrink; - - // install custom camera matrix - if (dcr.opt.use_camera_matrix && dcr.cmatrix[0][0] > 0.25) { - memcpy (dcr.rgb_cam, dcr.cmatrix, sizeof dcr.cmatrix); - dcr.raw_color = 0; - } - - // allocate memory for the image - dcr.image = (ushort (*)[4]) calloc (dcr.iheight*dcr.iwidth, sizeof *dcr.image); - dcr_merror (&dcr, dcr.image, szClass); - - if (dcr.meta_length) { - dcr.meta_data = (char *) malloc (dcr.meta_length); - dcr_merror (&dcr, dcr.meta_data, szClass); - } - - // start image decoder - hFile->Seek(dcr.data_offset, SEEK_SET); - (*dcr.load_raw)(&dcr); - - // post processing - if (dcr.zero_is_bad) dcr_remove_zeroes(&dcr); - - dcr_bad_pixels(&dcr); - - if (dcr.opt.dark_frame) dcr_subtract (&dcr,dcr.opt.dark_frame); - - dcr.quality = 2 + !dcr.fuji_width; - - if (dcr.opt.user_qual >= 0) dcr.quality = dcr.opt.user_qual; - - if (dcr.opt.user_black >= 0) dcr.black = dcr.opt.user_black; - -#ifdef COLORCHECK - dcr_colorcheck(&dcr); -#endif - -#if RESTRICTED - if (dcr.is_foveon && !dcr.opt.document_mode) dcr_foveon_interpolate(&dcr); -#endif - - if (!dcr.is_foveon && dcr.opt.document_mode < 2) dcr_scale_colors(&dcr); - - // pixel interpolation and filters - dcr_pre_interpolate(&dcr); - - if (dcr.filters && !dcr.opt.document_mode) { - if (dcr.quality == 0) - dcr_lin_interpolate(&dcr); - else if (dcr.quality == 1 || dcr.colors > 3) - dcr_vng_interpolate(&dcr); - else if (dcr.quality == 2) - dcr_ppg_interpolate(&dcr); - else - dcr_ahd_interpolate(&dcr); - } - - if (dcr.mix_green) { - long i; - for (dcr.colors=3, i=0; i < dcr.height*dcr.width; i++) { - dcr.image[i][1] = (dcr.image[i][1] + dcr.image[i][3]) >> 1; - } - } - - if (!dcr.is_foveon && dcr.colors == 3) dcr_median_filter(&dcr); - - if (!dcr.is_foveon && dcr.opt.highlight == 2) dcr_blend_highlights(&dcr); - - if (!dcr.is_foveon && dcr.opt.highlight > 2) dcr_recover_highlights(&dcr); - - if (dcr.opt.use_fuji_rotate) dcr_fuji_rotate(&dcr); - -#ifndef NO_LCMS - if (dcr.opt.cam_profile) dcr_apply_profile (dcr.opt.cam_profile, dcr.opt.out_profile); -#endif - - // final conversion - dcr_convert_to_rgb(&dcr); - - if (dcr.opt.use_fuji_rotate) dcr_stretch(&dcr); - - dcr.iheight = dcr.height; - dcr.iwidth = dcr.width; - if (dcr.flip & 4) SWAP(dcr.height,dcr.width); - - // ready to transfer data from dcr.image - if (!Create(dcr.width,dcr.height,24,CXIMAGE_FORMAT_RAW)){ - cx_throw(""); - } - - uchar *ppm = (uchar *) calloc (dcr.width, dcr.colors*dcr.opt.output_bps/8); - ushort *ppm2 = (ushort *) ppm; - dcr_merror (&dcr, ppm, szClass); - - uchar lut[0x10000]; - if (dcr.opt.output_bps == 8) dcr_gamma_lut (&dcr, lut); - - long c, row, col, soff, rstep, cstep; - soff = dcr_flip_index (&dcr, 0, 0); - cstep = dcr_flip_index (&dcr, 0, 1) - soff; - rstep = dcr_flip_index (&dcr, 1, 0) - dcr_flip_index (&dcr, 0, dcr.width); - for (row=0; row < dcr.height; row++, soff += rstep) { - for (col=0; col < dcr.width; col++, soff += cstep) { - if (dcr.opt.output_bps == 8) - for (c=0; c < dcr.colors; c++) ppm [col*dcr.colors+c] = lut[dcr.image[soff][c]]; - else - for (c=0; c < dcr.colors; c++) ppm2[col*dcr.colors+c] = dcr.image[soff][c]; - } - if (dcr.opt.output_bps == 16 && !dcr.opt.output_tiff && htons(0x55aa) != 0x55aa) - _swab ((char*)ppm2, (char*)ppm2, dcr.width*dcr.colors*2); - - DWORD size = dcr.width * (dcr.colors*dcr.opt.output_bps/8); - RGBtoBGR(ppm,size); - memcpy(GetBits(dcr.height - 1 - row), ppm, min(size,GetEffWidth())); - } - free (ppm); - - - dcr_cleanup_dcraw(&dcr); - - } cx_catch { - - dcr_cleanup_dcraw(&dcr); - - if (strcmp(message,"")) strncpy(info.szLastError,message,255); - if (info.nEscape == -1 && info.dwType == CXIMAGE_FORMAT_RAW) return true; - return false; - } - /* that's it */ - return true; -} -//////////////////////////////////////////////////////////////////////////////// -#endif //CXIMAGE_SUPPORT_DECODE -//////////////////////////////////////////////////////////////////////////////// -#if CXIMAGE_SUPPORT_ENCODE -//////////////////////////////////////////////////////////////////////////////// -bool CxImageRAW::Encode(CxFile * hFile) -{ - if (hFile == NULL) return false; - strcpy(info.szLastError, "Save RAW not supported"); - return false; -} -//////////////////////////////////////////////////////////////////////////////// -#endif // CXIMAGE_SUPPORT_ENCODE -//////////////////////////////////////////////////////////////////////////////// -#endif // CXIMAGE_SUPPORT_RAW - diff --git a/src/3rdParty/CxImage/CxImage/ximaraw.h b/src/3rdParty/CxImage/CxImage/ximaraw.h deleted file mode 100644 index 15b938d858..0000000000 --- a/src/3rdParty/CxImage/CxImage/ximaraw.h +++ /dev/null @@ -1,108 +0,0 @@ -/* - * File: ximaraw.h - * Purpose: RAW Image Class Loader and Writer - */ -/* ========================================================== - * CxImageRAW (c) May/2006 pdw63 - * For conditions of distribution and use, see copyright notice in ximage.h - * Special thanks to David Coffin for dcraw without which this class would not exist - * - * libdcr (c) Dec/2007 Davide Pizzolato - www.xdp.it - * - * based on dcraw.c -- Dave Coffin's raw photo decoder - * Copyright 1997-2007 by Dave Coffin, dcoffin a cybercom o net - * ========================================================== - */ -#if !defined(__ximaRAW_h) -#define __ximaRAW_h - -#include "ximage.h" - -#if CXIMAGE_SUPPORT_RAW - -extern "C" { - #include "../raw/libdcr.h" -} - -class CxImageRAW: public CxImage -{ - -public: - CxImageRAW(): CxImage(CXIMAGE_FORMAT_RAW) {} - -// bool Load(const char * imageFileName){ return CxImage::Load(imageFileName,CXIMAGE_FORMAT_ICO);} -// bool Save(const char * imageFileName){ return CxImage::Save(imageFileName,CXIMAGE_FORMAT_ICO);} - bool Decode(CxFile * hFile); - bool Decode(FILE *hFile) { CxIOFile file(hFile); return Decode(&file); } - -#if CXIMAGE_SUPPORT_ENCODE - bool Encode(CxFile * hFile); - bool Encode(FILE *hFile) { CxIOFile file(hFile); return Encode(&file); } -#endif // CXIMAGE_SUPPORT_ENCODE - - enum CODEC_OPTION - { - DECODE_QUALITY_LIN = 0x00, - DECODE_QUALITY_VNG = 0x01, - DECODE_QUALITY_PPG = 0x02, - DECODE_QUALITY_AHD = 0x03, - }; - -protected: - - class CxFileRaw - { - public: - CxFileRaw(CxFile* pFile,DCRAW *stream) - { - stream->obj_ = pFile; - - ras_stream_CxFile.read_ = raw_sfile_read; - ras_stream_CxFile.write_ = raw_sfile_write; - ras_stream_CxFile.seek_ = raw_sfile_seek; - ras_stream_CxFile.close_ = raw_sfile_close; - ras_stream_CxFile.gets_ = raw_sfile_gets; - ras_stream_CxFile.eof_ = raw_sfile_eof; - ras_stream_CxFile.tell_ = raw_sfile_tell; - ras_stream_CxFile.getc_ = raw_sfile_getc; - ras_stream_CxFile.scanf_ = raw_sfile_scanf; - - stream->ops_ = &ras_stream_CxFile; - - } - - static int raw_sfile_read(dcr_stream_obj *obj, void *buf, int size, int cnt) - { return ((CxFile*)obj)->Read(buf,size,cnt); } - - static int raw_sfile_write(dcr_stream_obj *obj, void *buf, int size, int cnt) - { return ((CxFile*)obj)->Write(buf,size,cnt); } - - static long raw_sfile_seek(dcr_stream_obj *obj, long offset, int origin) - { return ((CxFile*)obj)->Seek(offset,origin); } - - static int raw_sfile_close(dcr_stream_obj *obj) - { return 1; /*((CxFile*)obj)->Close();*/ } - - static char* raw_sfile_gets(dcr_stream_obj *obj, char *string, int n) - { return ((CxFile*)obj)->GetS(string,n); } - - static int raw_sfile_eof(dcr_stream_obj *obj) - { return ((CxFile*)obj)->Eof(); } - - static long raw_sfile_tell(dcr_stream_obj *obj) - { return ((CxFile*)obj)->Tell(); } - - static int raw_sfile_getc(dcr_stream_obj *obj) - { return ((CxFile*)obj)->GetC(); } - - static int raw_sfile_scanf(dcr_stream_obj *obj,const char *format, void* output) - { return ((CxFile*)obj)->Scanf(format, output); } - - private: - dcr_stream_ops ras_stream_CxFile; - }; -}; - -#endif - -#endif diff --git a/src/3rdParty/CxImage/CxImage/ximasel.cpp b/src/3rdParty/CxImage/CxImage/ximasel.cpp deleted file mode 100644 index bf61078ab4..0000000000 --- a/src/3rdParty/CxImage/CxImage/ximasel.cpp +++ /dev/null @@ -1,697 +0,0 @@ -// xImaSel.cpp : Selection functions -/* 07/08/2001 v1.00 - Davide Pizzolato - www.xdp.it - * CxImage version 6.0.0 02/Feb/2008 - */ - -#include "ximage.h" - -#if CXIMAGE_SUPPORT_SELECTION - -//////////////////////////////////////////////////////////////////////////////// -/** - * Checks if the image has a valid selection. - */ -bool CxImage::SelectionIsValid() -{ - return pSelection!=0; -} -//////////////////////////////////////////////////////////////////////////////// -/** - * Gets the smallest rectangle that contains the selection - */ -void CxImage::SelectionGetBox(RECT& r) -{ - memcpy(&r,&info.rSelectionBox,sizeof(RECT)); -} -//////////////////////////////////////////////////////////////////////////////// -/** - * Empties the selection. - */ -bool CxImage::SelectionClear(BYTE level) -{ - if (pSelection){ - if (level==0){ - memset(pSelection,0,head.biWidth * head.biHeight); - info.rSelectionBox.left = head.biWidth; - info.rSelectionBox.bottom = head.biHeight; - info.rSelectionBox.right = info.rSelectionBox.top = 0; - } else { - memset(pSelection,level,head.biWidth * head.biHeight); - info.rSelectionBox.right = head.biWidth; - info.rSelectionBox.top = head.biHeight; - info.rSelectionBox.left = info.rSelectionBox.bottom = 0; - } - return true; - } - return false; -} -//////////////////////////////////////////////////////////////////////////////// -/** - * Allocates an empty selection. - */ -bool CxImage::SelectionCreate() -{ - SelectionDelete(); - pSelection = (BYTE*)calloc(head.biWidth * head.biHeight, 1); - return (pSelection!=0); -} -//////////////////////////////////////////////////////////////////////////////// -/** - * Deallocates the selction. - */ -bool CxImage::SelectionDelete() -{ - if (pSelection){ - free(pSelection); - pSelection=NULL; - } - info.rSelectionBox.left = head.biWidth; - info.rSelectionBox.bottom = head.biHeight; - info.rSelectionBox.right = info.rSelectionBox.top = 0; - return true; -} -//////////////////////////////////////////////////////////////////////////////// -/** - * Checks if the coordinates are inside the selection. - */ -bool CxImage::SelectionIsInside(long x, long y) -{ - if (IsInside(x,y)){ - if (pSelection==NULL) return true; - return pSelection[x+y*head.biWidth]!=0; - } - return false; -} -//////////////////////////////////////////////////////////////////////////////// -/** - * Checks if the coordinates are inside the selection. - * "blind" version assumes that (x,y) is inside to the image. - */ -bool CxImage::BlindSelectionIsInside(long x, long y) -{ -#ifdef _DEBUG - if (!IsInside(x,y)) - #if CXIMAGE_SUPPORT_EXCEPTION_HANDLING - throw 0; - #else - return 0; - #endif -#endif - if (pSelection==NULL) return true; - return pSelection[x+y*head.biWidth]!=0; -} -//////////////////////////////////////////////////////////////////////////////// -/** - * Adds a rectangle to the existing selection. - */ -bool CxImage::SelectionAddRect(RECT r, BYTE level) -{ - if (pSelection==NULL) SelectionCreate(); - if (pSelection==NULL) return false; - - RECT r2; - if (r.left r2.left) info.rSelectionBox.left = max(0L,min(head.biWidth,r2.left)); - if (info.rSelectionBox.right <= r2.right) info.rSelectionBox.right = max(0L,min(head.biWidth,r2.right+1)); - if (info.rSelectionBox.bottom > r2.bottom) info.rSelectionBox.bottom = max(0L,min(head.biHeight,r2.bottom)); - - long ymin = max(0L,min(head.biHeight,r2.bottom)); - long ymax = max(0L,min(head.biHeight,r2.top+1)); - long xmin = max(0L,min(head.biWidth,r2.left)); - long xmax = max(0L,min(head.biWidth,r2.right+1)); - - for (long y=ymin; y (xcenter - xradius)) info.rSelectionBox.left = max(0L,min(head.biWidth,(xcenter - xradius))); - if (info.rSelectionBox.right <= (xcenter + xradius)) info.rSelectionBox.right = max(0L,min(head.biWidth,(xcenter + xradius + 1))); - if (info.rSelectionBox.bottom > (ycenter - yradius)) info.rSelectionBox.bottom = max(0L,min(head.biHeight,(ycenter - yradius))); - if (info.rSelectionBox.top <= (ycenter + yradius)) info.rSelectionBox.top = max(0L,min(head.biHeight,(ycenter + yradius + 1))); - - long xmin = max(0L,min(head.biWidth,xcenter - xradius)); - long xmax = max(0L,min(head.biWidth,xcenter + xradius + 1)); - long ymin = max(0L,min(head.biHeight,ycenter - yradius)); - long ymax = max(0L,min(head.biHeight,ycenter + yradius + 1)); - - long y,yo; - for (y=ymin; yy) pSelection[x + y * head.biWidth] = level; - } - } - return true; -} -//////////////////////////////////////////////////////////////////////////////// -/** - * Inverts the selection. - * Note: the SelectionBox is set to "full image", call SelectionGetBox before (if necessary) - */ -bool CxImage::SelectionInvert() -{ - if (pSelection) { - BYTE *iSrc=pSelection; - long n=head.biHeight*head.biWidth; - for(long i=0; i < n; i++){ - *iSrc=(BYTE)~(*(iSrc)); - iSrc++; - } - - SelectionRebuildBox(); - - return true; - } - return false; -} -//////////////////////////////////////////////////////////////////////////////// -/** - * Imports an existing region from another image with the same width and height. - */ -bool CxImage::SelectionCopy(CxImage &from) -{ - if (from.pSelection == NULL || head.biWidth != from.head.biWidth || head.biHeight != from.head.biHeight) return false; - if (pSelection==NULL) pSelection = (BYTE*)malloc(head.biWidth * head.biHeight); - if (pSelection==NULL) return false; - memcpy(pSelection,from.pSelection,head.biWidth * head.biHeight); - memcpy(&info.rSelectionBox,&from.info.rSelectionBox,sizeof(RECT)); - return true; -} -//////////////////////////////////////////////////////////////////////////////// -/** - * Adds a polygonal region to the existing selection. points points to an array of POINT structures. - * Each structure specifies the x-coordinate and y-coordinate of one vertex of the polygon. - * npoints specifies the number of POINT structures in the array pointed to by points. - */ -bool CxImage::SelectionAddPolygon(POINT *points, long npoints, BYTE level) -{ - if (points==NULL || npoints<3) return false; - - if (pSelection==NULL) SelectionCreate(); - if (pSelection==NULL) return false; - - BYTE* plocal = (BYTE*)calloc(head.biWidth*head.biHeight, 1); - RECT localbox = {head.biWidth,0,0,head.biHeight}; - - long x,y,i=0; - POINT *current; - POINT *next = NULL; - POINT *start = NULL; - //trace contour - while (i < npoints){ - current = &points[i]; - if (current->x!=-1){ - if (i==0 || (i>0 && points[i-1].x==-1)) start = &points[i]; - - if ((i+1)==npoints || points[i+1].x==-1) - next = start; - else - next = &points[i+1]; - - float beta; - if (current->x != next->x){ - beta = (float)(next->y - current->y)/(float)(next->x - current->x); - if (current->x < next->x){ - for (x=current->x; x<=next->x; x++){ - y = (long)(current->y + (x - current->x) * beta); - if (IsInside(x,y)) plocal[x + y * head.biWidth] = 255; - } - } else { - for (x=current->x; x>=next->x; x--){ - y = (long)(current->y + (x - current->x) * beta); - if (IsInside(x,y)) plocal[x + y * head.biWidth] = 255; - } - } - } - if (current->y != next->y){ - beta = (float)(next->x - current->x)/(float)(next->y - current->y); - if (current->y < next->y){ - for (y=current->y; y<=next->y; y++){ - x = (long)(current->x + (y - current->y) * beta); - if (IsInside(x,y)) plocal[x + y * head.biWidth] = 255; - } - } else { - for (y=current->y; y>=next->y; y--){ - x = (long)(current->x + (y - current->y) * beta); - if (IsInside(x,y)) plocal[x + y * head.biWidth] = 255; - } - } - } - } - - RECT r2; - if (current->x < next->x) {r2.left=current->x; r2.right=next->x; } else {r2.left=next->x ; r2.right=current->x; } - if (current->y < next->y) {r2.bottom=current->y; r2.top=next->y; } else {r2.bottom=next->y ; r2.top=current->y; } - if (localbox.top < r2.top) localbox.top = max(0L,min(head.biHeight-1,r2.top+1)); - if (localbox.left > r2.left) localbox.left = max(0L,min(head.biWidth-1,r2.left-1)); - if (localbox.right < r2.right) localbox.right = max(0L,min(head.biWidth-1,r2.right+1)); - if (localbox.bottom > r2.bottom) localbox.bottom = max(0L,min(head.biHeight-1,r2.bottom-1)); - - i++; - } - - //fill the outer region - long npix=(localbox.right - localbox.left)*(localbox.top - localbox.bottom); - POINT* pix = (POINT*)calloc(npix,sizeof(POINT)); - BYTE back=0, mark=1; - long fx, fy, fxx, fyy, first, last; - long xmin = 0; - long xmax = 0; - long ymin = 0; - long ymax = 0; - - for (int side=0; side<4; side++){ - switch(side){ - case 0: - xmin=localbox.left; xmax=localbox.right+1; ymin=localbox.bottom; ymax=localbox.bottom+1; - break; - case 1: - xmin=localbox.right; xmax=localbox.right+1; ymin=localbox.bottom; ymax=localbox.top+1; - break; - case 2: - xmin=localbox.left; xmax=localbox.right+1; ymin=localbox.top; ymax=localbox.top+1; - break; - case 3: - xmin=localbox.left; xmax=localbox.left+1; ymin=localbox.bottom; ymax=localbox.top+1; - break; - } - //fill from the border points - for(y=ymin;y=localbox.left && fxx<=localbox.right && fyy>=localbox.bottom && fyy<=localbox.top ) - { - plocal[fxx + fyy*head.biWidth] = mark; - if (fyy > 0 && plocal[fxx + (fyy - 1)*head.biWidth] == back){ - pix[last].x = fx; - pix[last].y = fy - 1; - last++; - if (last == npix) last = 0; - } - if ((fyy + 1)=localbox.left && fxx<=localbox.right && fyy>=localbox.bottom && fyy<=localbox.top ) - { - plocal[fxx + (y + fy)*head.biWidth] = mark; - if (fyy > 0 && plocal[fxx + (fyy - 1)*head.biWidth] == back){ - pix[last].x = fx; - pix[last].y = fy - 1; - last++; - if (last == npix) last = 0; - } - if ((fyy + 1) localbox.left) info.rSelectionBox.left = min(head.biWidth,localbox.left); - if (info.rSelectionBox.right <= localbox.right) info.rSelectionBox.right = min(head.biWidth,localbox.right + 1); - if (info.rSelectionBox.bottom > localbox.bottom) info.rSelectionBox.bottom = min(head.biHeight,localbox.bottom); - - free(plocal); - free(pix); - - return true; -} -//////////////////////////////////////////////////////////////////////////////// -/** - * Adds to the selection all the pixels matching the specified color. - */ -bool CxImage::SelectionAddColor(RGBQUAD c, BYTE level) -{ - if (pSelection==NULL) SelectionCreate(); - if (pSelection==NULL) return false; - - RECT localbox = {head.biWidth,0,0,head.biHeight}; - - for (long y = 0; y < head.biHeight; y++){ - for (long x = 0; x < head.biWidth; x++){ - RGBQUAD color = BlindGetPixelColor(x, y); - if (color.rgbRed == c.rgbRed && - color.rgbGreen == c.rgbGreen && - color.rgbBlue == c.rgbBlue) - { - pSelection[x + y * head.biWidth] = level; - - if (localbox.top < y) localbox.top = y; - if (localbox.left > x) localbox.left = x; - if (localbox.right < x) localbox.right = x; - if (localbox.bottom > y) localbox.bottom = y; - } - } - } - - if (info.rSelectionBox.top <= localbox.top) info.rSelectionBox.top = localbox.top + 1; - if (info.rSelectionBox.left > localbox.left) info.rSelectionBox.left = localbox.left; - if (info.rSelectionBox.right <= localbox.right) info.rSelectionBox.right = localbox.right + 1; - if (info.rSelectionBox.bottom > localbox.bottom) info.rSelectionBox.bottom = localbox.bottom; - - return true; -} -//////////////////////////////////////////////////////////////////////////////// -/** - * Adds a single pixel to the existing selection. - */ -bool CxImage::SelectionAddPixel(long x, long y, BYTE level) -{ - if (pSelection==NULL) SelectionCreate(); - if (pSelection==NULL) return false; - - if (IsInside(x,y)) { - pSelection[x + y * head.biWidth] = level; // set the correct mask bit - - if (info.rSelectionBox.top <= y) info.rSelectionBox.top = y+1; - if (info.rSelectionBox.left > x) info.rSelectionBox.left = x; - if (info.rSelectionBox.right <= x) info.rSelectionBox.right = x+1; - if (info.rSelectionBox.bottom > y) info.rSelectionBox.bottom = y; - - return true; - } - - return false; -} -//////////////////////////////////////////////////////////////////////////////// -/** - * Exports the selection channel in a 8bpp grayscale image. - */ -bool CxImage::SelectionSplit(CxImage *dest) -{ - if (!pSelection || !dest) return false; - - CxImage tmp(head.biWidth,head.biHeight,8); - if (!tmp.IsValid()){ - strcpy(info.szLastError,tmp.GetLastError()); - return false; - } - - for(long y=0; yTransfer(tmp); - - return true; -} -//////////////////////////////////////////////////////////////////////////////// -/** - * Creates the selection channel from a gray scale image. - * black = unselected - */ -bool CxImage::SelectionSet(CxImage &from) -{ - if (!from.IsGrayScale() || head.biWidth != from.head.biWidth || head.biHeight != from.head.biHeight){ - strcpy(info.szLastError,"CxImage::SelectionSet: wrong width or height, or image is not gray scale"); - return false; - } - - if (pSelection==NULL) pSelection = (BYTE*)malloc(head.biWidth * head.biHeight); - - BYTE* src = from.info.pImage; - BYTE* dst = pSelection; - if (src==NULL || dst==NULL){ - strcpy(info.szLastError,"CxImage::SelectionSet: null pointer"); - return false; - } - - for (long y=0; y=info.rSelectionBox.right; x--){ - if (pSelection[x+y*head.biWidth]){ - info.rSelectionBox.right = x+1; - continue; - } - } - } - - for (x=0; x=info.rSelectionBox.top; y--){ - if (pSelection[x+y*head.biWidth]){ - info.rSelectionBox.top = y+1; - continue; - } - } - } - -} -//////////////////////////////////////////////////////////////////////////////// -/** - * Gets the Selection level for a single pixel - * "blind" version assumes that (x,y) is inside to the image. - */ -BYTE CxImage::BlindSelectionGet(const long x,const long y) -{ -#ifdef _DEBUG - if (!IsInside(x,y) || (pSelection==0)) - #if CXIMAGE_SUPPORT_EXCEPTION_HANDLING - throw 0; - #else - return 0; - #endif -#endif - return pSelection[x+y*head.biWidth]; -} -//////////////////////////////////////////////////////////////////////////////// -/** - * Returns pointer to selection data for pixel (x,y). - */ -BYTE* CxImage::SelectionGetPointer(const long x,const long y) -{ - if (pSelection && IsInside(x,y)) return pSelection+x+y*head.biWidth; - return 0; -} -//////////////////////////////////////////////////////////////////////////////// -bool CxImage::SelectionFlip() -{ - if (!pSelection) return false; - - BYTE *buff = (BYTE*)malloc(head.biWidth); - if (!buff) return false; - - BYTE *iSrc,*iDst; - iSrc = pSelection + (head.biHeight-1)*head.biWidth; - iDst = pSelection; - for (long i=0; i<(head.biHeight/2); ++i) - { - memcpy(buff, iSrc, head.biWidth); - memcpy(iSrc, iDst, head.biWidth); - memcpy(iDst, buff, head.biWidth); - iSrc-=head.biWidth; - iDst+=head.biWidth; - } - - free(buff); - - long top = info.rSelectionBox.top; - info.rSelectionBox.top = head.biHeight - info.rSelectionBox.bottom; - info.rSelectionBox.bottom = head.biHeight - top; - return true; -} -//////////////////////////////////////////////////////////////////////////////// -bool CxImage::SelectionMirror() -{ - if (!pSelection) return false; - BYTE* pSelection2 = (BYTE*)malloc(head.biWidth * head.biHeight); - if (!pSelection2) return false; - - BYTE *iSrc,*iDst; - long wdt=head.biWidth-1; - iSrc=pSelection + wdt; - iDst=pSelection2; - for(long y=0; y < head.biHeight; y++){ - for(long x=0; x <= wdt; x++) - *(iDst+x)=*(iSrc-x); - iSrc+=head.biWidth; - iDst+=head.biWidth; - } - free(pSelection); - pSelection=pSelection2; - - long left = info.rSelectionBox.left; - info.rSelectionBox.left = head.biWidth - info.rSelectionBox.right; - info.rSelectionBox.right = head.biWidth - left; - return true; -} -//////////////////////////////////////////////////////////////////////////////// -#if CXIMAGE_SUPPORT_WINDOWS -/** - * Converts the selection in a HRGN object. - */ -bool CxImage::SelectionToHRGN(HRGN& region) -{ - if (pSelection && region){ - for(int y = 0; y < head.biHeight; y++){ - HRGN hTemp = NULL; - int iStart = -1; - int x = 0; - for(; x < head.biWidth; x++){ - if (pSelection[x + y * head.biWidth] != 0){ - if (iStart == -1) iStart = x; - continue; - }else{ - if (iStart >= 0){ - hTemp = CreateRectRgn(iStart, y, x, y + 1); - CombineRgn(region, hTemp, region, RGN_OR); - DeleteObject(hTemp); - iStart = -1; - } - } - } - if (iStart >= 0){ - hTemp = CreateRectRgn(iStart, y, x, y + 1); - CombineRgn(region, hTemp, region, RGN_OR); - DeleteObject(hTemp); - iStart = -1; - } - } - return true; - } - return false; -} -#endif //CXIMAGE_SUPPORT_WINDOWS -//////////////////////////////////////////////////////////////////////////////// -#endif //CXIMAGE_SUPPORT_SELECTION diff --git a/src/3rdParty/CxImage/CxImage/ximaska.cpp b/src/3rdParty/CxImage/CxImage/ximaska.cpp deleted file mode 100644 index 1ecdf7f5a0..0000000000 --- a/src/3rdParty/CxImage/CxImage/ximaska.cpp +++ /dev/null @@ -1,126 +0,0 @@ -/* - * File: ximaska.cpp - * Purpose: Platform Independent SKA Image Class Loader and Writer - * 25/Sep/2007 Davide Pizzolato - www.xdp.it - * CxImage version 6.0.0 02/Feb/2008 - */ - -#include "ximaska.h" - -#if CXIMAGE_SUPPORT_SKA - -//////////////////////////////////////////////////////////////////////////////// -#if CXIMAGE_SUPPORT_DECODE -//////////////////////////////////////////////////////////////////////////////// -bool CxImageSKA::Decode(CxFile *hFile) -{ - if (hFile==NULL) - return false; - - // read the header - SKAHEADER ska_header; - hFile->Read(&ska_header,sizeof(SKAHEADER),1); - - ska_header.Width = ntohs(ska_header.Width); - ska_header.Height = ntohs(ska_header.Height); - ska_header.dwUnknown = ntohl(ska_header.dwUnknown); - - // check header - if (ska_header.dwUnknown != 0x01000000 || - ska_header.Width > 0x7FFF || ska_header.Height > 0x7FFF || - ska_header.BppExp != 3) - return false; - - if (info.nEscape == -1){ - head.biWidth = ska_header.Width ; - head.biHeight= ska_header.Height; - info.dwType = CXIMAGE_FORMAT_SKA; - return true; - } - - int bpp = 1<Read(ppal,nColors*sizeof(rgb_color),1); - SetPalette(ppal,nColors); - free(ppal); - - //read the image - hFile->Read(GetBits(),ska_header.Width*ska_header.Height,1); - - //reorder rows - if (GetEffWidth() != ska_header.Width){ - BYTE *src,*dst; - src = GetBits() + ska_header.Width*(ska_header.Height-1); - dst = GetBits(ska_header.Height-1); - for(int y=0;y 8) { - strcpy(info.szLastError,"SKA Images must be 8 bit or less"); - return false; - } - - SKAHEADER ska_header; - - ska_header.Width = (unsigned short)GetWidth(); - ska_header.Height = (unsigned short)GetHeight(); - ska_header.BppExp = 3; - ska_header.dwUnknown = 0x01000000; - - ska_header.Width = ntohs(ska_header.Width); - ska_header.Height = ntohs(ska_header.Height); - ska_header.dwUnknown = ntohl(ska_header.dwUnknown); - - hFile->Write(&ska_header,sizeof(SKAHEADER),1); - - ska_header.Width = ntohs(ska_header.Width); - ska_header.Height = ntohs(ska_header.Height); - ska_header.dwUnknown = ntohl(ska_header.dwUnknown); - - if (head.biBitCount<8) IncreaseBpp(8); - - rgb_color pal[256]; - for(int idx=0; idx<256; idx++){ - GetPaletteColor(idx,&(pal[idx].r),&(pal[idx].g),&(pal[idx].b)); - } - - hFile->Write(pal,256*sizeof(rgb_color),1); - - BYTE* src = GetBits(ska_header.Height-1); - for(int y=0;yWrite(src,ska_header.Width,1); - src -= GetEffWidth(); - } - - return true; -} -//////////////////////////////////////////////////////////////////////////////// -#endif // CXIMAGE_SUPPORT_ENCODE -//////////////////////////////////////////////////////////////////////////////// -#endif // CXIMAGE_SUPPORT_SKA - diff --git a/src/3rdParty/CxImage/CxImage/ximaska.h b/src/3rdParty/CxImage/CxImage/ximaska.h deleted file mode 100644 index f2facc900f..0000000000 --- a/src/3rdParty/CxImage/CxImage/ximaska.h +++ /dev/null @@ -1,44 +0,0 @@ -/* - * File: ximaska.h - * Purpose: SKA Image Class Loader and Writer - */ -/* ========================================================== - * CxImageSKA (c) 25/Sep/2007 Davide Pizzolato - www.xdp.it - * For conditions of distribution and use, see copyright notice in ximage.h - * ========================================================== - */ -#if !defined(__ximaSKA_h) -#define __ximaSKA_h - -#include "ximage.h" - -#if CXIMAGE_SUPPORT_SKA - -class CxImageSKA: public CxImage -{ -#pragma pack(1) - typedef struct tagSkaHeader { - unsigned short Width; - unsigned short Height; - BYTE BppExp; - DWORD dwUnknown; -} SKAHEADER; -#pragma pack() - -public: - CxImageSKA(): CxImage(CXIMAGE_FORMAT_SKA) {} - -// bool Load(const char * imageFileName){ return CxImage::Load(imageFileName,CXIMAGE_FORMAT_ICO);} -// bool Save(const char * imageFileName){ return CxImage::Save(imageFileName,CXIMAGE_FORMAT_ICO);} - bool Decode(CxFile * hFile); - bool Decode(FILE *hFile) { CxIOFile file(hFile); return Decode(&file); } - -#if CXIMAGE_SUPPORT_ENCODE - bool Encode(CxFile * hFile); - bool Encode(FILE *hFile) { CxIOFile file(hFile); return Encode(&file); } -#endif // CXIMAGE_SUPPORT_ENCODE -}; - -#endif - -#endif diff --git a/src/3rdParty/CxImage/CxImage/ximatga.cpp b/src/3rdParty/CxImage/CxImage/ximatga.cpp deleted file mode 100644 index b137126c4d..0000000000 --- a/src/3rdParty/CxImage/CxImage/ximatga.cpp +++ /dev/null @@ -1,321 +0,0 @@ -/* - * File: ximatga.cpp - * Purpose: Platform Independent TGA Image Class Loader and Writer - * 05/Jan/2001 Davide Pizzolato - www.xdp.it - * CxImage version 6.0.0 02/Feb/2008 - */ - -#include "ximatga.h" - -#if CXIMAGE_SUPPORT_TGA - -#include "ximaiter.h" - -// Definitions for image types. -#define TGA_Null 0 -#define TGA_Map 1 -#define TGA_RGB 2 -#define TGA_Mono 3 -#define TGA_RLEMap 9 -#define TGA_RLERGB 10 -#define TGA_RLEMono 11 -#define TGA_CompMap 32 -#define TGA_CompMap4 33 - -//////////////////////////////////////////////////////////////////////////////// -#if CXIMAGE_SUPPORT_DECODE -//////////////////////////////////////////////////////////////////////////////// -bool CxImageTGA::Decode(CxFile *hFile) -{ - if (hFile == NULL) return false; - - TGAHEADER tgaHead; - - cx_try - { - if (hFile->Read(&tgaHead,sizeof(tgaHead),1)==0) - cx_throw("Not a TGA"); - - tga_toh(&tgaHead); - - bool bCompressed; - switch (tgaHead.ImageType){ - case TGA_Map: - case TGA_RGB: - case TGA_Mono: - bCompressed = false; - break; - case TGA_RLEMap: - case TGA_RLERGB: - case TGA_RLEMono: - bCompressed = true; - break; - default: - cx_throw("Unknown TGA image type"); - } - - if (tgaHead.ImageWidth==0 || tgaHead.ImageHeight==0 || tgaHead.PixelDepth==0 || tgaHead.CmapLength>256) - cx_throw("bad TGA header"); - - if (tgaHead.PixelDepth!=8 && tgaHead.PixelDepth!=15 && tgaHead.PixelDepth!=16 && tgaHead.PixelDepth!=24 && tgaHead.PixelDepth!=32) - cx_throw("bad TGA header"); - - if (info.nEscape == -1){ - head.biWidth = tgaHead.ImageWidth ; - head.biHeight= tgaHead.ImageHeight; - info.dwType = CXIMAGE_FORMAT_TGA; - return true; - } - - if (tgaHead.IdLength>0) hFile->Seek(tgaHead.IdLength,SEEK_CUR); //skip descriptor - - Create(tgaHead.ImageWidth, tgaHead.ImageHeight, tgaHead.PixelDepth, CXIMAGE_FORMAT_TGA); -#if CXIMAGE_SUPPORT_ALPHA // - if (tgaHead.PixelDepth==32) AlphaCreate(); // Image has alpha channel -#endif //CXIMAGE_SUPPORT_ALPHA - - if (!IsValid()) cx_throw("TGA Create failed"); - - if (info.nEscape) cx_throw("Cancelled"); // - cancel decoding - - if (tgaHead.CmapType != 0){ // read the palette - rgb_color pal[256]; - hFile->Read(pal,tgaHead.CmapLength*sizeof(rgb_color), 1); - for (int i=0;i - cancel decoding - - if (hFile == NULL || hFile->Eof()) cx_throw("corrupted TGA"); - - if (bYReversed) pDest = iter.GetRow(tgaHead.ImageHeight-y-1); - else pDest = iter.GetRow(y); - - if (bCompressed) rleLeftover = ExpandCompressedLine(pDest,&tgaHead,hFile,tgaHead.ImageWidth,y,rleLeftover); - else ExpandUncompressedLine (pDest,&tgaHead,hFile,tgaHead.ImageWidth,y,0); - } - - if (bXReversed) Mirror(); - -#if CXIMAGE_SUPPORT_ALPHA - if (bYReversed && tgaHead.PixelDepth==32) AlphaFlip(); // -#endif //CXIMAGE_SUPPORT_ALPHA - - } cx_catch { - if (strcmp(message,"")) strncpy(info.szLastError,message,255); - return false; - } - return true; -} -//////////////////////////////////////////////////////////////////////////////// -#endif //CXIMAGE_SUPPORT_DECODE -//////////////////////////////////////////////////////////////////////////////// -#if CXIMAGE_SUPPORT_ENCODE -//////////////////////////////////////////////////////////////////////////////// -bool CxImageTGA::Encode(CxFile * hFile) -{ - if (EncodeSafeCheck(hFile)) return false; - - if (head.biBitCount<8){ - strcpy(info.szLastError,"Bit depth must be 8 or 24"); - return false; - } - - TGAHEADER tgaHead; - - tgaHead.IdLength = 0; // Image ID Field Length - tgaHead.CmapType = GetPalette()!=0; // Color Map Type - tgaHead.ImageType = (head.biBitCount == 8) ? (BYTE)TGA_Map : (BYTE)TGA_RGB; // Image Type - - tgaHead.CmapIndex=0; // First Entry Index - tgaHead.CmapLength=(head.biBitCount == 8) ? 256 : 0; // Color Map Length - tgaHead.CmapEntrySize=(head.biBitCount == 8) ? (BYTE)24 : (BYTE)0; // Color Map Entry Size - - tgaHead.X_Origin=0; // X-origin of Image - tgaHead.Y_Origin=0; // Y-origin of Image - tgaHead.ImageWidth=(WORD)head.biWidth; // Image Width - tgaHead.ImageHeight=(WORD)head.biHeight; // Image Height - tgaHead.PixelDepth=(BYTE)head.biBitCount; // Pixel Depth - tgaHead.ImagDesc=0; // Image Descriptor - - if (pAlpha && head.biBitCount==24) tgaHead.PixelDepth=32; - - tga_toh(&tgaHead); - hFile->Write(&tgaHead,sizeof(TGAHEADER),1); - tga_toh(&tgaHead); - - if (head.biBitCount==8){ - rgb_color pal[256]; - RGBQUAD* ppal = GetPalette(); - for (int i=0;i<256; i++){ - pal[i].r = ppal[i].rgbBlue; - pal[i].g = ppal[i].rgbGreen; - pal[i].b = ppal[i].rgbRed; - } - hFile->Write(&pal,256*sizeof(rgb_color),1); - } - - CImageIterator iter(this); - BYTE* pDest; - if (pAlpha==0 || head.biBitCount==8){ - for (int y=0; y < tgaHead.ImageHeight; y++){ - pDest = iter.GetRow(y); - hFile->Write(pDest,tgaHead.ImageWidth * (head.biBitCount >> 3),1); - } - } else { - pDest = (BYTE*)malloc(4*tgaHead.ImageWidth); - RGBQUAD c; - for (int y=0; y < tgaHead.ImageHeight; y++){ - for(int x=0, x4=0;x - pDest[x4+3]=AlphaGet(x,y); -#else - pDest[x4+3]=0; -#endif //CXIMAGE_SUPPORT_ALPHA - } - hFile->Write(pDest,4*tgaHead.ImageWidth,1); - } - free(pDest); - } - return true; -} -//////////////////////////////////////////////////////////////////////////////// -#endif // CXIMAGE_SUPPORT_ENCODE -//////////////////////////////////////////////////////////////////////////////// -BYTE CxImageTGA::ExpandCompressedLine(BYTE* pDest,TGAHEADER* ptgaHead,CxFile *hFile,int width, int y, BYTE rleLeftover) -{ - BYTE rle; - long filePos=0; - for (int x=0; xRead(&rle,1,1); - } - if (rle & 128) { // RLE-Encoded packet - rle -= 127; // Calculate real repeat count. - if ((x+rle)>width){ - rleLeftover = (BYTE)(128 + (rle - (width - x) - 1)); - filePos = hFile->Tell(); - rle = (BYTE)(width - x); - } - switch (ptgaHead->PixelDepth) - { - case 32: { - RGBQUAD color; - hFile->Read(&color,4,1); - for (int ix = 0; ix < rle; ix++){ - memcpy(&pDest[3*ix],&color,3); -#if CXIMAGE_SUPPORT_ALPHA // - AlphaSet(ix+x,y,color.rgbReserved); -#endif //CXIMAGE_SUPPORT_ALPHA - } - break; - } - case 24: { - rgb_color triple; - hFile->Read(&triple,3,1); - for (int ix = 0; ix < rle; ix++) memcpy(&pDest[3*ix],&triple,3); - break; - } - case 15: - case 16: { - WORD pixel; - hFile->Read(&pixel,2,1); - rgb_color triple; - triple.r = (BYTE)(( pixel & 0x1F ) * 8); // red - triple.g = (BYTE)(( pixel >> 2 ) & 0x0F8); // green - triple.b = (BYTE)(( pixel >> 7 ) & 0x0F8); // blue - for (int ix = 0; ix < rle; ix++){ - memcpy(&pDest[3*ix],&triple,3); - } - break; - } - case 8: { - BYTE pixel; - hFile->Read(&pixel,1,1); - for (int ix = 0; ix < rle; ix++) pDest[ix] = pixel; - } - } - if (rleLeftover!=255) hFile->Seek(filePos, SEEK_SET); - } else { // Raw packet - rle += 1; // Calculate real repeat count. - if ((x+rle)>width){ - rleLeftover = (BYTE)(rle - (width - x) - 1); - rle = (BYTE)(width - x); - } - ExpandUncompressedLine(pDest,ptgaHead,hFile,rle,y,x); - } - if (head.biBitCount == 24) pDest += rle*3; else pDest += rle; - x += rle; - } - return rleLeftover; -} -//////////////////////////////////////////////////////////////////////////////// -void CxImageTGA::ExpandUncompressedLine(BYTE* pDest,TGAHEADER* ptgaHead,CxFile *hFile,int width, int y, int xoffset) -{ - switch (ptgaHead->PixelDepth){ - case 8: - hFile->Read(pDest,width,1); - break; - case 15: - case 16:{ - BYTE* dst=pDest; - WORD pixel; - for (int x=0; xRead(&pixel,2,1); - *dst++ = (BYTE)(( pixel & 0x1F ) * 8); // blue - *dst++ = (BYTE)(( pixel >> 2 ) & 0x0F8); // green - *dst++ = (BYTE)(( pixel >> 7 ) & 0x0F8); // red - } - break; - } - case 24: - hFile->Read(pDest,3*width,1); - break; - case 32:{ - BYTE* dst=pDest; - for (int x=0; xRead(&pixel,4,1); - *dst++ = pixel.rgbBlue; - *dst++ = pixel.rgbGreen; - *dst++ = pixel.rgbRed; -#if CXIMAGE_SUPPORT_ALPHA // - AlphaSet(x+xoffset,y,pixel.rgbReserved); //alpha -#endif //CXIMAGE_SUPPORT_ALPHA - } - break; - } - } -} -//////////////////////////////////////////////////////////////////////////////// -void CxImageTGA::tga_toh(TGAHEADER* p) -{ - p->CmapIndex = ntohs(p->CmapIndex); - p->CmapLength = ntohs(p->CmapLength); - p->X_Origin = ntohs(p->X_Origin); - p->Y_Origin = ntohs(p->Y_Origin); - p->ImageWidth = ntohs(p->ImageWidth); - p->ImageHeight = ntohs(p->ImageHeight); -} -//////////////////////////////////////////////////////////////////////////////// -#endif // CXIMAGE_SUPPORT_TGA - diff --git a/src/3rdParty/CxImage/CxImage/ximatga.h b/src/3rdParty/CxImage/CxImage/ximatga.h deleted file mode 100644 index da572e6da3..0000000000 --- a/src/3rdParty/CxImage/CxImage/ximatga.h +++ /dev/null @@ -1,61 +0,0 @@ -/* - * File: ximatga.h - * Purpose: TARGA Image Class Loader and Writer - */ -/* ========================================================== - * CxImageTGA (c) 05/Jan/2002 Davide Pizzolato - www.xdp.it - * For conditions of distribution and use, see copyright notice in ximage.h - * - * Parts of the code come from Paintlib : Copyright (c) 1996-1998 Ulrich von Zadow - * ========================================================== - */ -#if !defined(__ximaTGA_h) -#define __ximaTGA_h - -#include "ximage.h" - -#if CXIMAGE_SUPPORT_TGA - -class CxImageTGA: public CxImage -{ -#pragma pack(1) -typedef struct tagTgaHeader -{ - BYTE IdLength; // Image ID Field Length - BYTE CmapType; // Color Map Type - BYTE ImageType; // Image Type - - WORD CmapIndex; // First Entry Index - WORD CmapLength; // Color Map Length - BYTE CmapEntrySize; // Color Map Entry Size - - WORD X_Origin; // X-origin of Image - WORD Y_Origin; // Y-origin of Image - WORD ImageWidth; // Image Width - WORD ImageHeight; // Image Height - BYTE PixelDepth; // Pixel Depth - BYTE ImagDesc; // Image Descriptor -} TGAHEADER; -#pragma pack() - -public: - CxImageTGA(): CxImage(CXIMAGE_FORMAT_TGA) {} - -// bool Load(const TCHAR * imageFileName){ return CxImage::Load(imageFileName,CXIMAGE_FORMAT_TGA);} -// bool Save(const TCHAR * imageFileName){ return CxImage::Save(imageFileName,CXIMAGE_FORMAT_TGA);} - bool Decode(CxFile * hFile); - bool Decode(FILE *hFile) { CxIOFile file(hFile); return Decode(&file); } - -#if CXIMAGE_SUPPORT_ENCODE - bool Encode(CxFile * hFile); - bool Encode(FILE *hFile) { CxIOFile file(hFile); return Encode(&file); } -#endif // CXIMAGE_SUPPORT_ENCODE -protected: - BYTE ExpandCompressedLine(BYTE* pDest,TGAHEADER* ptgaHead,CxFile *hFile,int width, int y, BYTE rleLeftover); - void ExpandUncompressedLine(BYTE* pDest,TGAHEADER* ptgaHead,CxFile *hFile,int width, int y, int xoffset); - void tga_toh(TGAHEADER* p); -}; - -#endif - -#endif diff --git a/src/3rdParty/CxImage/CxImage/ximath.cpp b/src/3rdParty/CxImage/CxImage/ximath.cpp deleted file mode 100644 index 017518445d..0000000000 --- a/src/3rdParty/CxImage/CxImage/ximath.cpp +++ /dev/null @@ -1,97 +0,0 @@ -#include "ximage.h" -#include "ximath.h" -#include - -//this module should contain some classes for geometrical transformations -//usable with selections, etc... once it's done, that is. :) - -CxPoint2::CxPoint2() -{ - x=y=0.0f; -} - -CxPoint2::CxPoint2(float const x_, float const y_) -{ - x=x_; - y=y_; -} - -CxPoint2::CxPoint2(CxPoint2 const &p) -{ - x=p.x; - y=p.y; -} - -float CxPoint2::Distance(CxPoint2 const p2) -{ - return (float)sqrt((x-p2.x)*(x-p2.x)+(y-p2.y)*(y-p2.y)); -} - -float CxPoint2::Distance(float const x_, float const y_) -{ - return (float)sqrt((x-x_)*(x-x_)+(y-y_)*(y-y_)); -} - -CxRect2::CxRect2() -{ -} - -CxRect2::CxRect2(float const x1_, float const y1_, float const x2_, float const y2_) -{ - botLeft.x=x1_; - botLeft.y=y1_; - topRight.x=x2_; - topRight.y=y2_; -} - -CxRect2::CxRect2(CxRect2 const &p) -{ - botLeft=p.botLeft; - topRight=p.topRight; -} - -float CxRect2::Surface() const -/* - * Returns the surface of rectangle. - */ -{ - return (topRight.x-botLeft.x)*(topRight.y-botLeft.y); -} - -CxRect2 CxRect2::CrossSection(CxRect2 const &r2) const -/* - * Returns crossection with another rectangle. - */ -{ - CxRect2 cs; - cs.botLeft.x=max(botLeft.x, r2.botLeft.x); - cs.botLeft.y=max(botLeft.y, r2.botLeft.y); - cs.topRight.x=min(topRight.x, r2.topRight.x); - cs.topRight.y=min(topRight.y, r2.topRight.y); - if (cs.botLeft.x<=cs.topRight.x && cs.botLeft.y<=cs.topRight.y) { - return cs; - } else { - return CxRect2(0,0,0,0); - }//if -} - -CxPoint2 CxRect2::Center() const -/* - * Returns the center point of rectangle. - */ -{ - return CxPoint2((topRight.x+botLeft.x)/2.0f, (topRight.y+botLeft.y)/2.0f); -} - -float CxRect2::Width() const -//returns rectangle width -{ - return topRight.x-botLeft.x; -} - -float CxRect2::Height() const -//returns rectangle height -{ - return topRight.y-botLeft.y; -} - diff --git a/src/3rdParty/CxImage/CxImage/ximath.h b/src/3rdParty/CxImage/CxImage/ximath.h deleted file mode 100644 index 014c14b80e..0000000000 --- a/src/3rdParty/CxImage/CxImage/ximath.h +++ /dev/null @@ -1,39 +0,0 @@ -#if !defined(__ximath_h) -#define __ximath_h - -#include "ximadef.h" - -//***bd*** simple floating point point -class DLL_EXP CxPoint2 -{ -public: - CxPoint2(); - CxPoint2(float const x_, float const y_); - CxPoint2(CxPoint2 const &p); - - float Distance(CxPoint2 const p2); - float Distance(float const x_, float const y_); - - float x,y; -}; - -//and simple rectangle -class DLL_EXP CxRect2 -{ -public: - CxRect2(); - CxRect2(float const x1_, float const y1_, float const x2_, float const y2_); - CxRect2(CxPoint2 const &bl, CxPoint2 const &tr); - CxRect2(CxRect2 const &p); - - float Surface() const; - CxRect2 CrossSection(CxRect2 const &r2) const; - CxPoint2 Center() const; - float Width() const; - float Height() const; - - CxPoint2 botLeft; - CxPoint2 topRight; -}; - -#endif diff --git a/src/3rdParty/CxImage/CxImage/ximatif.cpp b/src/3rdParty/CxImage/CxImage/ximatif.cpp deleted file mode 100644 index b7415ed1da..0000000000 --- a/src/3rdParty/CxImage/CxImage/ximatif.cpp +++ /dev/null @@ -1,980 +0,0 @@ -/* - * File: ximatif.cpp - * Purpose: Platform Independent TIFF Image Class Loader and Writer - * 07/Aug/2001 Davide Pizzolato - www.xdp.it - * CxImage version 6.0.0 02/Feb/2008 - */ - -#include "ximatif.h" - -#if CXIMAGE_SUPPORT_TIF - -#define FIX_16BPP_DARKIMG // + VK: if uncomment, dark 16bpp images are fixed - -#include "../tiff/tiffio.h" - -#define CVT(x) (((x) * 255L) / ((1L<<16)-1)) -#define SCALE(x) (((x)*((1L<<16)-1))/255) -#define CalculateLine(width,bitdepth) (((width * bitdepth) + 7) / 8) -#define CalculatePitch(line) (line + 3 & ~3) - -extern "C" TIFF* _TIFFOpenEx(CxFile* stream, const char* mode); - -//////////////////////////////////////////////////////////////////////////////// -CxImageTIF::~CxImageTIF() -{ - if (m_tif2) TIFFClose(m_tif2); -} -//////////////////////////////////////////////////////////////////////////////// -#if CXIMAGE_SUPPORT_DECODE -//////////////////////////////////////////////////////////////////////////////// -bool CxImageTIF::Decode(CxFile * hFile) -{ - //Comment this line if you need more information on errors - // TIFFSetErrorHandler(NULL); // - - //Open file and fill the TIFF structure - // m_tif = TIFFOpen(imageFileName,"rb"); - TIFF* m_tif = _TIFFOpenEx(hFile, "rb"); - - uint32 height=0; - uint32 width=0; - uint16 bitspersample=1; - uint16 samplesperpixel=1; - uint32 rowsperstrip=(DWORD)-1; - uint16 photometric=0; - uint16 compression=1; - uint16 orientation=ORIENTATION_TOPLEFT; // - uint16 res_unit; // - uint32 x, y; - float resolution, offset; - BOOL isRGB; - BYTE *bits; //pointer to source data - BYTE *bits2; //pointer to destination data - - cx_try - { - //check if it's a tiff file - if (!m_tif) - cx_throw("Error encountered while opening TIFF file"); - - // - 12/2002 : get NumFrames directly, instead of looping - // info.nNumFrames=0; - // while(TIFFSetDirectory(m_tif,(uint16)info.nNumFrames)) info.nNumFrames++; - info.nNumFrames = TIFFNumberOfDirectories(m_tif); - - if (!TIFFSetDirectory(m_tif, (uint16)info.nFrame)) - cx_throw("Error: page not present in TIFF file"); - - //get image info - TIFFGetField(m_tif, TIFFTAG_IMAGEWIDTH, &width); - TIFFGetField(m_tif, TIFFTAG_IMAGELENGTH, &height); - TIFFGetField(m_tif, TIFFTAG_SAMPLESPERPIXEL, &samplesperpixel); - TIFFGetField(m_tif, TIFFTAG_BITSPERSAMPLE, &bitspersample); - TIFFGetField(m_tif, TIFFTAG_ROWSPERSTRIP, &rowsperstrip); - TIFFGetField(m_tif, TIFFTAG_PHOTOMETRIC, &photometric); - TIFFGetField(m_tif, TIFFTAG_ORIENTATION, &orientation); - - if (info.nEscape == -1) { - // Return output dimensions only - head.biWidth = width; - head.biHeight = height; - info.dwType = CXIMAGE_FORMAT_TIF; - cx_throw("output dimensions returned"); - } - - TIFFGetFieldDefaulted(m_tif, TIFFTAG_RESOLUTIONUNIT, &res_unit); - if (TIFFGetField(m_tif, TIFFTAG_XRESOLUTION, &resolution)) - { - if (res_unit == RESUNIT_CENTIMETER) resolution = (float)(resolution*2.54f + 0.5f); - SetXDPI((long)resolution); - } - if (TIFFGetField(m_tif, TIFFTAG_YRESOLUTION, &resolution)) - { - if (res_unit == RESUNIT_CENTIMETER) resolution = (float)(resolution*2.54f + 0.5f); - SetYDPI((long)resolution); - } - - if (TIFFGetField(m_tif, TIFFTAG_XPOSITION, &offset)) info.xOffset = (long)offset; - if (TIFFGetField(m_tif, TIFFTAG_YPOSITION, &offset)) info.yOffset = (long)offset; - - head.biClrUsed=0; - info.nBkgndIndex =-1; - - if (rowsperstrip>height){ - rowsperstrip=height; - TIFFSetField(m_tif, TIFFTAG_ROWSPERSTRIP, rowsperstrip); - } - - isRGB = /*(bitspersample >= 8) && (VK: it is possible so for RGB to have < 8 bpp!)*/ - (photometric == PHOTOMETRIC_RGB) || - (photometric == PHOTOMETRIC_YCBCR) || - (photometric == PHOTOMETRIC_SEPARATED) || - (photometric == PHOTOMETRIC_LOGL) || - (photometric == PHOTOMETRIC_LOGLUV); - - if (isRGB){ - head.biBitCount=24; - }else{ - if ((photometric==PHOTOMETRIC_MINISBLACK)||(photometric==PHOTOMETRIC_MINISWHITE)||(photometric==PHOTOMETRIC_PALETTE)){ - if (bitspersample == 1){ - head.biBitCount=1; //B&W image - head.biClrUsed =2; - } else if (bitspersample == 4) { - head.biBitCount=4; //16 colors gray scale - head.biClrUsed =16; - } else { - head.biBitCount=8; //gray scale - head.biClrUsed =256; - } - } else if (bitspersample == 4) { - head.biBitCount=4; // 16 colors - head.biClrUsed=16; - } else { - head.biBitCount=8; //256 colors - head.biClrUsed=256; - } - - if ((bitspersample > 8) && (photometric==PHOTOMETRIC_PALETTE)) // + VK + (BIG palette! => convert to RGB) - { head.biBitCount=24; - head.biClrUsed =0; - } - } - - if (info.nEscape) cx_throw("Cancelled"); // - cancel decoding - - Create(width,height,head.biBitCount,CXIMAGE_FORMAT_TIF); //image creation - if (!pDib) cx_throw("CxImageTIF can't create image"); - -#if CXIMAGE_SUPPORT_ALPHA - if (samplesperpixel==4) AlphaCreate(); //add alpha support for 32bpp tiffs - if (samplesperpixel==2 && bitspersample==8) AlphaCreate(); //add alpha support for 8bpp + alpha -#endif //CXIMAGE_SUPPORT_ALPHA - - TIFFGetField(m_tif, TIFFTAG_COMPRESSION, &compression); - SetCodecOption(compression); // save original compression type - - if (isRGB) { - // Read the whole image into one big RGBA buffer using - // the traditional TIFFReadRGBAImage() API that we trust. - uint32* raster; // retrieve RGBA image - uint32 *row; - - raster = (uint32*)_TIFFmalloc(width * height * sizeof (uint32)); - if (raster == NULL) cx_throw("No space for raster buffer"); - - // Read the image in one chunk into an RGBA array - if(!TIFFReadRGBAImage(m_tif, width, height, raster, 1)) { - _TIFFfree(raster); - cx_throw("Corrupted TIFF file!"); - } - - // read the raster lines and save them in the DIB - // with RGB mode, we have to change the order of the 3 samples RGB - row = &raster[0]; - bits2 = info.pImage; - for (y = 0; y < height; y++) { - - if (info.nEscape){ // - cancel decoding - _TIFFfree(raster); - cx_throw("Cancelled"); - } - - bits = bits2; - for (x = 0; x < width; x++) { - *bits++ = (BYTE)TIFFGetB(row[x]); - *bits++ = (BYTE)TIFFGetG(row[x]); - *bits++ = (BYTE)TIFFGetR(row[x]); -#if CXIMAGE_SUPPORT_ALPHA - if (samplesperpixel==4) AlphaSet(x,y,(BYTE)TIFFGetA(row[x])); -#endif //CXIMAGE_SUPPORT_ALPHA - } - row += width; - bits2 += info.dwEffWidth; - } - _TIFFfree(raster); - } else { - int BIG_palette = (bitspersample > 8) && // + VK - (photometric==PHOTOMETRIC_PALETTE); - if (BIG_palette && (bitspersample > 24)) // + VK - cx_throw("Too big palette to handle"); // + VK - - RGBQUAD *pal; - pal=(RGBQUAD*)calloc(BIG_palette ? 1< 8) - - // set up the colormap based on photometric - switch(photometric) { - case PHOTOMETRIC_MINISBLACK: // bitmap and greyscale image types - case PHOTOMETRIC_MINISWHITE: - if (bitspersample == 1) { // Monochrome image - if (photometric == PHOTOMETRIC_MINISBLACK) { - pal[1].rgbRed = pal[1].rgbGreen = pal[1].rgbBlue = 255; - } else { - pal[0].rgbRed = pal[0].rgbGreen = pal[0].rgbBlue = 255; - } - } else { // need to build the scale for greyscale images - if (photometric == PHOTOMETRIC_MINISBLACK) { - for (int i=0; i<(1< 0) { - if (red[n] >= 256 || green[n] >= 256 || blue[n] >= 256) { - Palette16Bits=TRUE; - break; - } - } - } - - // load the palette in the DIB - for (int i = (1 << ( BIG_palette ? bitspersample : bpp )) - 1; i >= 0; i--) { - if (Palette16Bits) { - pal[i].rgbRed =(BYTE) CVT(red[i]); - pal[i].rgbGreen = (BYTE) CVT(green[i]); - pal[i].rgbBlue = (BYTE) CVT(blue[i]); - } else { - pal[i].rgbRed = (BYTE) red[i]; - pal[i].rgbGreen = (BYTE) green[i]; - pal[i].rgbBlue = (BYTE) blue[i]; - } - } - break; - } - if (!BIG_palette) { // + VK (BIG palette is stored until image is ready) - SetPalette(pal,/*head.biClrUsed*/ 1< 8) && (bitspersample != 16)) // + VK (for bitspersample == 9..15,17..32..64 - bitsize *= (bitspersample + 7)/8; - - int tiled_image = TIFFIsTiled(m_tif); - uint32 tw=0, tl=0; - BYTE* tilebuf=NULL; - if (tiled_image){ - TIFFGetField(m_tif, TIFFTAG_TILEWIDTH, &tw); - TIFFGetField(m_tif, TIFFTAG_TILELENGTH, &tl); - rowsperstrip = tl; - bitsize = TIFFTileSize(m_tif) * (int)(1+width/tw); - tilebuf = (BYTE*)malloc(TIFFTileSize(m_tif)); - } - - bits = (BYTE*)malloc(bitspersample==16? bitsize*2 : bitsize); // * VK - BYTE * bits16 = NULL; // + VK - int line16 = 0; // + VK - - if (!tiled_image && bitspersample==16) { // + VK + - line16 = line; - line = CalculateLine(width, 8 * samplesperpixel); - bits16 = bits; - bits = (BYTE*)malloc(bitsize); - } - - if (bits==NULL){ - if (bits16) free(bits16); // + VK - if (pal) free(pal); // + VK - if (tilebuf)free(tilebuf); // + VK - cx_throw("CxImageTIF can't allocate memory"); - } - -#ifdef FIX_16BPP_DARKIMG // + VK: for each line, store shift count bits used to fix it - BYTE* row_shifts = NULL; - if (bits16) row_shifts = (BYTE*)malloc(height); -#endif - - for (ys = 0; ys < height; ys += rowsperstrip) { - - if (info.nEscape){ // - cancel decoding - free(bits); - cx_throw("Cancelled"); - } - - nrow = (ys + rowsperstrip > height ? height - ys : rowsperstrip); - - if (tiled_image){ - uint32 imagew = TIFFScanlineSize(m_tif); - uint32 tilew = TIFFTileRowSize(m_tif); - int iskew = imagew - tilew; - uint8* bufp = (uint8*) bits; - - uint32 colb = 0; - for (uint32 col = 0; col < width; col += tw) { - if (TIFFReadTile(m_tif, tilebuf, col, ys, 0, 0) < 0){ - free(tilebuf); - free(bits); - cx_throw("Corrupted tiled TIFF file!"); - } - - if (colb + tw > imagew) { - uint32 owidth = imagew - colb; - uint32 oskew = tilew - owidth; - TileToStrip(bufp + colb, tilebuf, nrow, owidth, oskew + iskew, oskew ); - } else { - TileToStrip(bufp + colb, tilebuf, nrow, tilew, iskew, 0); - } - colb += tilew; - } - - } else { - if (TIFFReadEncodedStrip(m_tif, TIFFComputeStrip(m_tif, ys, 0), - (bits16? bits16 : bits), nrow * (bits16 ? line16 : line)) == -1) { // * VK - -#ifdef NOT_IGNORE_CORRUPTED - free(bits); - if (bits16) free(bits16); // + VK - cx_throw("Corrupted TIFF file!"); -#else - break; -#endif - } - } - - for (y = 0; y < nrow; y++) { - long offset=(nrow-y-1)*line; - if ((bitspersample==16) && !BIG_palette) { // * VK - long offset16 = (nrow-y-1)*line16; // + VK - if (bits16) { // + VK + -#ifdef FIX_16BPP_DARKIMG - int the_shift; - BYTE hi_byte, hi_max=0; - DWORD xi; - for (xi=0;xi<(uint32)line;xi++) { - hi_byte = bits16[xi*2+offset16+1]; - if(hi_byte>hi_max) - hi_max = hi_byte; - } - the_shift = (hi_max == 0) ? 8 : 0; - if (!the_shift) - while( ! (hi_max & 0x80) ) { - the_shift++; - hi_max <<= 1; - } - row_shifts[height-ys-nrow+y] = the_shift; - the_shift = 8 - the_shift; - for (xi=0;xi<(uint32)line;xi++) - bits[xi+offset]= ((bits16[xi*2+offset16+1]<<8) | bits16[xi*2+offset16]) >> the_shift; -#else - for (DWORD xi=0;xi<(uint32)line;xi++) - bits[xi+offset]=bits16[xi*2+offset16+1]; -#endif - } else { - for (DWORD xi=0;xi=(int)width){ - yi--; - xi=0; - } - } - } else { //photometric==PHOTOMETRIC_CIELAB - if (head.biBitCount!=24){ //fix image - Create(width,height,24,CXIMAGE_FORMAT_TIF); -#if CXIMAGE_SUPPORT_ALPHA - if (samplesperpixel==4) AlphaCreate(); -#endif //CXIMAGE_SUPPORT_ALPHA - } - - int xi=0; - uint32 ii=0; - int yi=height-ys-nrow+y; - RGBQUAD c; - int l,a,b,bitsoffset; - double p,cx,cy,cz,cr,cg,cb; - while (ii127) a-=256; - if (b>127) b-=256; - // lab to xyz - p = (l/2.55 + 16) / 116.0; - cx = pow( p + a * 0.002, 3); - cy = pow( p, 3); - cz = pow( p - b * 0.005, 3); - // white point - cx*=0.95047; - //cy*=1.000; - cz*=1.0883; - // xyz to rgb - cr = 3.240479 * cx - 1.537150 * cy - 0.498535 * cz; - cg = -0.969256 * cx + 1.875992 * cy + 0.041556 * cz; - cb = 0.055648 * cx - 0.204043 * cy + 1.057311 * cz; - - if ( cr > 0.00304 ) cr = 1.055 * pow(cr,0.41667) - 0.055; - else cr = 12.92 * cr; - if ( cg > 0.00304 ) cg = 1.055 * pow(cg,0.41667) - 0.055; - else cg = 12.92 * cg; - if ( cb > 0.00304 ) cb = 1.055 * pow(cb,0.41667) - 0.055; - else cb = 12.92 * cb; - - c.rgbRed =(BYTE)max(0,min(255,(int)(cr*255))); - c.rgbGreen=(BYTE)max(0,min(255,(int)(cg*255))); - c.rgbBlue =(BYTE)max(0,min(255,(int)(cb*255))); - - SetPixelColor(xi,yi,c); -#if CXIMAGE_SUPPORT_ALPHA - if (samplesperpixel==4) AlphaSet(xi,yi,bits[bitsoffset+3]); -#endif //CXIMAGE_SUPPORT_ALPHA - ii++; - xi++; - if (xi>=(int)width){ - yi--; - xi=0; - } - } - } - } - } - free(bits); - if (bits16) free(bits16); - -#ifdef FIX_16BPP_DARKIMG - if (row_shifts && (samplesperpixel == 1) && (bitspersample==16) && !BIG_palette) { - // 1. calculate maximum necessary shift - int min_row_shift = 8; - for( y=0; y row_shifts[y]) min_row_shift = row_shifts[y]; - } - // 2. for rows having less shift value, correct such rows: - for( y=0; y>= need_shift; - } - } - } - if (row_shifts) free( row_shifts ); -#endif - - if (tiled_image) free(tilebuf); - if (pal) free(pal); - - switch(orientation){ - case ORIENTATION_TOPRIGHT: /* row 0 top, col 0 rhs */ - Mirror(); - break; - case ORIENTATION_BOTRIGHT: /* row 0 bottom, col 0 rhs */ - Flip(); - Mirror(); - break; - case ORIENTATION_BOTLEFT: /* row 0 bottom, col 0 lhs */ - Flip(); - break; - case ORIENTATION_LEFTTOP: /* row 0 lhs, col 0 top */ - RotateRight(); - Mirror(); - break; - case ORIENTATION_RIGHTTOP: /* row 0 rhs, col 0 top */ - RotateLeft(); - break; - case ORIENTATION_RIGHTBOT: /* row 0 rhs, col 0 bottom */ - RotateLeft(); - Mirror(); - break; - case ORIENTATION_LEFTBOT: /* row 0 lhs, col 0 bottom */ - RotateRight(); - break; - } - - } - } cx_catch { - if (strcmp(message,"")) strncpy(info.szLastError,message,255); - if (m_tif) TIFFClose(m_tif); - if (info.nEscape == -1 && info.dwType == CXIMAGE_FORMAT_TIF) return true; - return false; - } - TIFFClose(m_tif); - return true; -} -//////////////////////////////////////////////////////////////////////////////// -#endif //CXIMAGE_SUPPORT_DECODE -//////////////////////////////////////////////////////////////////////////////// -#if CXIMAGE_SUPPORT_ENCODE -//////////////////////////////////////////////////////////////////////////////// -bool CxImageTIF::Encode(CxFile * hFile, bool bAppend) -{ - cx_try - { - if (hFile==NULL) cx_throw(CXIMAGE_ERR_NOFILE); - if (pDib==NULL) cx_throw(CXIMAGE_ERR_NOIMAGE); - - // replaced "w+b" with "a", to append an image directly on an existing file - if (m_tif2==NULL) m_tif2=_TIFFOpenEx(hFile, "a"); - if (m_tif2==NULL) cx_throw("initialization fail"); - - if (bAppend || m_pages) m_multipage=true; - m_pages++; - - if (!EncodeBody(m_tif2,m_multipage,m_pages,m_pages)) cx_throw("Error saving TIFF file"); - if (bAppend) { - if (!TIFFWriteDirectory(m_tif2)) cx_throw("Error saving TIFF directory"); - } - } cx_catch { - if (strcmp(message,"")) strncpy(info.szLastError,message,255); - if (m_tif2){ - TIFFClose(m_tif2); - m_tif2=NULL; - m_multipage=false; - m_pages=0; - } - return false; - } - if (!bAppend){ - TIFFClose(m_tif2); - m_tif2=NULL; - m_multipage=false; - m_pages=0; - } - return true; -} -//////////////////////////////////////////////////////////////////////////////// -// Thanks to Abe -bool CxImageTIF::Encode(CxFile * hFile, CxImage ** pImages, int pagecount) -{ - cx_try - { - if (hFile==NULL) cx_throw("invalid file pointer"); - if (pImages==NULL || pagecount<=0) cx_throw("multipage TIFF, no images!"); - - int i; - for (i=0; iIsValid())) - cx_throw("Empty image"); - } - - CxImageTIF ghost; - for (i=0; i some viewers do not handle PHOTOMETRIC_MINISBLACK: - * let's transform the image in PHOTOMETRIC_MINISWHITE - */ - //invert the colors - RGBQUAD tempRGB=GetPaletteColor(0); - SetPaletteColor(0,GetPaletteColor(1)); - SetPaletteColor(1,tempRGB); - //invert the pixels - BYTE *iSrc=info.pImage; - for (unsigned long i=0;irgbRed != x)||(rgb->rgbRed != rgb->rgbGreen)||(rgb->rgbRed != rgb->rgbBlue)){ - photometric = PHOTOMETRIC_PALETTE; - break; - } - rgb++; - } - break; - case 24: - case 32: - photometric = PHOTOMETRIC_RGB; - break; - } - -#if CXIMAGE_SUPPORT_ALPHA - if (AlphaIsValid() && bitcount==8) samplesperpixel=2; //8bpp + alpha layer -#endif //CXIMAGE_SUPPORT_ALPHA - -// line = CalculateLine(width, bitspersample * samplesperpixel); -// pitch = (uint16)CalculatePitch(line); - - //prepare the palette struct - RGBQUAD pal[256]; - if (GetPalette()){ - BYTE b; - memcpy(pal,GetPalette(),GetPaletteSize()); - for(WORD a=0;a gives better compression - TIFFSetField(m_tif, TIFFTAG_ROWSPERSTRIP, rowsperstrip); - - // handle metrics - TIFFSetField(m_tif, TIFFTAG_RESOLUTIONUNIT, RESUNIT_INCH); - TIFFSetField(m_tif, TIFFTAG_XRESOLUTION, (float)info.xDPI); - TIFFSetField(m_tif, TIFFTAG_YRESOLUTION, (float)info.yDPI); -// TIFFSetField(m_tif, TIFFTAG_XPOSITION, (float)info.xOffset); -// TIFFSetField(m_tif, TIFFTAG_YPOSITION, (float)info.yOffset); - - // multi-paging - Thanks to Abe - if (multipage) - { - char page_number[20]; - sprintf(page_number, "Page %d", page); - - TIFFSetField(m_tif, TIFFTAG_SUBFILETYPE, FILETYPE_PAGE); - TIFFSetField(m_tif, TIFFTAG_PAGENUMBER, page,pagecount); - TIFFSetField(m_tif, TIFFTAG_PAGENAME, page_number); - } else { - TIFFSetField(m_tif, TIFFTAG_SUBFILETYPE, 0); - } - - // palettes (image colormaps are automatically scaled to 16-bits) - if (photometric == PHOTOMETRIC_PALETTE) { - uint16 *r, *g, *b; - r = (uint16 *) _TIFFmalloc(sizeof(uint16) * 3 * 256); - g = r + 256; - b = g + 256; - - for (int i = 255; i >= 0; i--) { - b[i] = (uint16)SCALE((uint16)pal[i].rgbRed); - g[i] = (uint16)SCALE((uint16)pal[i].rgbGreen); - r[i] = (uint16)SCALE((uint16)pal[i].rgbBlue); - } - - TIFFSetField(m_tif, TIFFTAG_COLORMAP, r, g, b); - _TIFFfree(r); - } - - // compression - if (GetCodecOption(CXIMAGE_FORMAT_TIF)) { - compression = (WORD)GetCodecOption(CXIMAGE_FORMAT_TIF); - } else { - switch (bitcount) { - case 1 : - compression = COMPRESSION_CCITTFAX4; - break; - case 4 : - case 8 : - compression = COMPRESSION_LZW; - break; - case 24 : - case 32 : - compression = COMPRESSION_JPEG; - break; - default : - compression = COMPRESSION_NONE; - break; - } - } - TIFFSetField(m_tif, TIFFTAG_COMPRESSION, compression); - - switch (compression) { - case COMPRESSION_JPEG: - TIFFSetField(m_tif, TIFFTAG_JPEGQUALITY, GetJpegQuality()); - TIFFSetField(m_tif, TIFFTAG_ROWSPERSTRIP, ((7+rowsperstrip)>>3)<<3); - break; - case COMPRESSION_LZW: - if (bitcount>=8) TIFFSetField(m_tif, TIFFTAG_PREDICTOR, 2); - break; - } - - // read the DIB lines from bottom to top and save them in the TIF - - BYTE *bits; - switch(bitcount) { - case 1 : - case 4 : - case 8 : - { - if (samplesperpixel==1){ - bits = (BYTE*)malloc(info.dwEffWidth); - if (!bits) return false; - for (y = 0; y < height; y++) { - memcpy(bits,info.pImage + (height - y - 1)*info.dwEffWidth,info.dwEffWidth); - if (TIFFWriteScanline(m_tif,bits, y, 0)==-1){ - free(bits); - return false; - } - } - free(bits); - } -#if CXIMAGE_SUPPORT_ALPHA - else { //8bpp + alpha layer - bits = (BYTE*)malloc(2*width); - if (!bits) return false; - for (y = 0; y < height; y++) { - for (x=0;x 0) { - uint32 j = cols; - while (j-- > 0) - *out++ = *in++; - out += outskew; - in += inskew; - } -} -//////////////////////////////////////////////////////////////////////////////// -TIFF* CxImageTIF::TIFFOpenEx(CxFile * hFile) -{ - if (hFile) return _TIFFOpenEx(hFile, "rb"); - return NULL; -} -//////////////////////////////////////////////////////////////////////////////// -void CxImageTIF::TIFFCloseEx(TIFF* tif) -{ - if (tif) TIFFClose(tif); -} -//////////////////////////////////////////////////////////////////////////////// -void CxImageTIF::MoveBits( BYTE* dest, BYTE* from, int count, int bpp ) -{ int offbits = 0; - uint16 w; - uint32 d; - if (bpp <= 8) { - while (count-- > 0) { - if (offbits + bpp <= 8) - w = *from >> (8 - offbits - bpp); - else { - w = *from++ << (offbits + bpp - 8); - w |= *from >> (16 - offbits - bpp); - } - offbits += bpp; - if (offbits >= 8) { - offbits -= 8; - if (offbits == 0) from++; - } - *dest++ = (BYTE)w & ((1 << bpp)-1); - } - } else if (bpp < 16) { - while (count-- > 0) { - d = (*from << 24) | (from[1]<<16) | (from[2]<<8) | from[3]; - d >>= (24 - offbits); - *dest++ = (BYTE) ( d ); - offbits += bpp; - while (offbits >= 8) { - from++; - offbits -= 8; - } - } - } else if (bpp < 32) { - while (count-- > 0) { - d = (*from << 24) | (from[1]<<16) | (from[2]<<8) | from[3]; - //d = *(uint32*)from; - *dest++ = (BYTE) ( d >> (offbits + bpp - 8) ); - offbits += bpp; - while (offbits >= 8) { - from++; - offbits -= 8; - } - } - } else { - while (count-- > 0) { - d = *(uint32*)from; - *dest++ = (BYTE) (d >> 24); - from += 4; - } - } -} -//////////////////////////////////////////////////////////////////////////////// -void CxImageTIF::MoveBitsPal( BYTE* dest, BYTE*from, int count, int bpp, RGBQUAD* pal ) -{ int offbits = 0; - uint32 d; - uint16 palidx; - while (count-- > 0) { - d = (*from << 24) | ( *( from + 1 ) << 16 ) - | ( *( from + 2 ) << 8 ) - | ( *( from + 3 ) ); - palidx = (uint16) (d >> (32 - offbits - bpp)); - if (bpp < 16) { - palidx <<= 16-bpp; - palidx = (palidx >> 8) | (palidx <<8); - palidx >>= 16-bpp; - } else palidx = (palidx >> 8) | (palidx << 8); - *dest++ = pal[palidx].rgbBlue; - *dest++ = pal[palidx].rgbGreen; - *dest++ = pal[palidx].rgbRed; - offbits += bpp; - while (offbits >= 8) { - from++; - offbits -= 8; - } - } -} -//////////////////////////////////////////////////////////////////////////////// - -#endif // CXIMAGE_SUPPORT_TIF diff --git a/src/3rdParty/CxImage/CxImage/ximatif.h b/src/3rdParty/CxImage/CxImage/ximatif.h deleted file mode 100644 index e12443074c..0000000000 --- a/src/3rdParty/CxImage/CxImage/ximatif.h +++ /dev/null @@ -1,62 +0,0 @@ -/* - * File: ximatif.h - * Purpose: TIFF Image Class Loader and Writer - */ -/* ========================================================== - * CxImageTIF (c) 07/Aug/2001 Davide Pizzolato - www.xdp.it - * For conditions of distribution and use, see copyright notice in ximage.h - * - * Special thanks to Troels Knakkergaard for new features, enhancements and bugfixes - * - * Special thanks to Abe for MultiPageTIFF code. - * - * LibTIFF is: - * Copyright (c) 1988-1997 Sam Leffler - * Copyright (c) 1991-1997 Silicon Graphics, Inc. - * ========================================================== - */ - -#if !defined(__ximatif_h) -#define __ximatif_h - -#include "ximage.h" - -#if CXIMAGE_SUPPORT_TIF - -#include "../tiff/tiffio.h" - -class DLL_EXP CxImageTIF: public CxImage -{ -public: - CxImageTIF(): CxImage(CXIMAGE_FORMAT_TIF) {m_tif2=NULL; m_multipage=false; m_pages=0;} - ~CxImageTIF(); - - TIFF* TIFFOpenEx(CxFile * hFile); - void TIFFCloseEx(TIFF* tif); - -// bool Load(const TCHAR * imageFileName){ return CxImage::Load(imageFileName,CXIMAGE_FORMAT_TIF);} -// bool Save(const TCHAR * imageFileName){ return CxImage::Save(imageFileName,CXIMAGE_FORMAT_TIF);} - bool Decode(CxFile * hFile); - bool Decode(FILE *hFile) { CxIOFile file(hFile); return Decode(&file); } - -#if CXIMAGE_SUPPORT_ENCODE - bool Encode(CxFile * hFile, bool bAppend=false); - bool Encode(CxFile * hFile, CxImage ** pImages, int pagecount); - bool Encode(FILE *hFile, bool bAppend=false) { CxIOFile file(hFile); return Encode(&file,bAppend); } - bool Encode(FILE *hFile, CxImage ** pImages, int pagecount) - { CxIOFile file(hFile); return Encode(&file, pImages, pagecount); } -#endif // CXIMAGE_SUPPORT_ENCODE - -protected: - void TileToStrip(uint8* out, uint8* in, uint32 rows, uint32 cols, int outskew, int inskew); - bool EncodeBody(TIFF *m_tif, bool multipage=false, int page=0, int pagecount=0); - TIFF *m_tif2; - bool m_multipage; - int m_pages; - void MoveBits( BYTE* dest, BYTE* from, int count, int bpp ); - void MoveBitsPal( BYTE* dest, BYTE*from, int count, int bpp, RGBQUAD* pal ); -}; - -#endif - -#endif diff --git a/src/3rdParty/CxImage/CxImage/ximatran.cpp b/src/3rdParty/CxImage/CxImage/ximatran.cpp deleted file mode 100644 index 9f136a05d6..0000000000 --- a/src/3rdParty/CxImage/CxImage/ximatran.cpp +++ /dev/null @@ -1,2624 +0,0 @@ -// xImaTran.cpp : Transformation functions -/* 07/08/2001 v1.00 - Davide Pizzolato - www.xdp.it - * CxImage version 6.0.0 02/Feb/2008 - */ - -#include "ximage.h" -#include "ximath.h" - -#if CXIMAGE_SUPPORT_BASICTRANSFORMATIONS -//////////////////////////////////////////////////////////////////////////////// -bool CxImage::GrayScale() -{ - if (!pDib) return false; - if (head.biBitCount<=8){ - RGBQUAD* ppal=GetPalette(); - int gray; - //converts the colors to gray, use the blue channel only - for(DWORD i=0;i= 0) info.nBkgndIndex = ppal[info.nBkgndIndex].rgbBlue; - //create a "real" 8 bit gray scale image - if (head.biBitCount==8){ - BYTE *img=info.pImage; - for(DWORD i=0;i> 1]&((BYTE)0x0F<> pos)].rgbBlue; - } else { - BYTE pos = (BYTE)(7-x%8); - iDst[x]= ppal[(BYTE)((iSrc[x >> 3]&((BYTE)0x01<> pos)].rgbBlue; - } - } - } - Transfer(ima); - } - } else { //from RGB to 8 bit gray scale - BYTE *iSrc=info.pImage; - CxImage ima; - ima.CopyInfo(*this); - if (!ima.Create(head.biWidth,head.biHeight,8,info.dwType)) return false; - ima.SetGrayPalette(); -#if CXIMAGE_SUPPORT_SELECTION - ima.SelectionCopy(*this); -#endif //CXIMAGE_SUPPORT_SELECTION -#if CXIMAGE_SUPPORT_ALPHA - ima.AlphaCopy(*this); -#endif //CXIMAGE_SUPPORT_ALPHA - BYTE *img=ima.GetBits(); - long l8=ima.GetEffWidth(); - long l=head.biWidth * 3; - for(long y=0; y < head.biHeight; y++) { - for(long x=0,x8=0; x < l; x+=3,x8++) { - img[x8+y*l8]=(BYTE)RGB2GRAY(*(iSrc+x+2),*(iSrc+x+1),*(iSrc+x+0)); - } - iSrc+=info.dwEffWidth; - } - Transfer(ima); - } - return true; -} -//////////////////////////////////////////////////////////////////////////////// -/** - * \sa Mirror - * \author [qhbo] - */ -bool CxImage::Flip(bool bFlipSelection, bool bFlipAlpha) -{ - if (!pDib) return false; - - BYTE *buff = (BYTE*)malloc(info.dwEffWidth); - if (!buff) return false; - - BYTE *iSrc,*iDst; - iSrc = GetBits(head.biHeight-1); - iDst = GetBits(0); - for (long i=0; i<(head.biHeight/2); ++i) - { - memcpy(buff, iSrc, info.dwEffWidth); - memcpy(iSrc, iDst, info.dwEffWidth); - memcpy(iDst, buff, info.dwEffWidth); - iSrc-=info.dwEffWidth; - iDst+=info.dwEffWidth; - } - - free(buff); - - if (bFlipSelection){ -#if CXIMAGE_SUPPORT_SELECTION - SelectionFlip(); -#endif //CXIMAGE_SUPPORT_SELECTION - } - - if (bFlipAlpha){ -#if CXIMAGE_SUPPORT_ALPHA - AlphaFlip(); -#endif //CXIMAGE_SUPPORT_ALPHA - } - - return true; -} -//////////////////////////////////////////////////////////////////////////////// -/** - * \sa Flip - */ -bool CxImage::Mirror(bool bMirrorSelection, bool bMirrorAlpha) -{ - if (!pDib) return false; - - CxImage* imatmp = new CxImage(*this,false,true,true); - if (!imatmp) return false; - if (!imatmp->IsValid()){ - delete imatmp; - return false; - } - - BYTE *iSrc,*iDst; - long wdt=(head.biWidth-1) * (head.biBitCount==24 ? 3:1); - iSrc=info.pImage + wdt; - iDst=imatmp->info.pImage; - long x,y; - switch (head.biBitCount){ - case 24: - for(y=0; y < head.biHeight; y++){ - for(x=0; x <= wdt; x+=3){ - *(iDst+x)=*(iSrc-x); - *(iDst+x+1)=*(iSrc-x+1); - *(iDst+x+2)=*(iSrc-x+2); - } - iSrc+=info.dwEffWidth; - iDst+=info.dwEffWidth; - } - break; - case 8: - for(y=0; y < head.biHeight; y++){ - for(x=0; x <= wdt; x++) - *(iDst+x)=*(iSrc-x); - iSrc+=info.dwEffWidth; - iDst+=info.dwEffWidth; - } - break; - default: - for(y=0; y < head.biHeight; y++){ - for(x=0; x <= wdt; x++) - imatmp->SetPixelIndex(x,y,GetPixelIndex(wdt-x,y)); - } - } - - if (bMirrorSelection){ -#if CXIMAGE_SUPPORT_SELECTION - imatmp->SelectionMirror(); -#endif //CXIMAGE_SUPPORT_SELECTION - } - - if (bMirrorAlpha){ -#if CXIMAGE_SUPPORT_ALPHA - imatmp->AlphaMirror(); -#endif //CXIMAGE_SUPPORT_ALPHA - } - - Transfer(*imatmp); - delete imatmp; - return true; -} - -//////////////////////////////////////////////////////////////////////////////// -#define RBLOCK 64 - -//////////////////////////////////////////////////////////////////////////////// -bool CxImage::RotateLeft(CxImage* iDst) -{ - if (!pDib) return false; - - long newWidth = GetHeight(); - long newHeight = GetWidth(); - - CxImage imgDest; - imgDest.CopyInfo(*this); - imgDest.Create(newWidth,newHeight,GetBpp(),GetType()); - imgDest.SetPalette(GetPalette()); - -#if CXIMAGE_SUPPORT_ALPHA - if (AlphaIsValid()) imgDest.AlphaCreate(); -#endif - -#if CXIMAGE_SUPPORT_SELECTION - if (SelectionIsValid()) imgDest.SelectionCreate(); -#endif - - long x,x2,y,dlineup; - - // Speedy rotate for BW images - if (head.biBitCount == 1) { - - BYTE *sbits, *dbits, *dbitsmax, bitpos, *nrow,*srcdisp; - ldiv_t div_r; - - BYTE *bsrc = GetBits(), *bdest = imgDest.GetBits(); - dbitsmax = bdest + imgDest.head.biSizeImage - 1; - dlineup = 8 * imgDest.info.dwEffWidth - imgDest.head.biWidth; - - imgDest.Clear(0); - for (y = 0; y < head.biHeight; y++) { - // Figure out the Column we are going to be copying to - div_r = ldiv(y + dlineup, (long)8); - // set bit pos of src column byte - bitpos = (BYTE)(1 << div_r.rem); - srcdisp = bsrc + y * info.dwEffWidth; - for (x = 0; x < (long)info.dwEffWidth; x++) { - // Get Source Bits - sbits = srcdisp + x; - // Get destination column - nrow = bdest + (x * 8) * imgDest.info.dwEffWidth + imgDest.info.dwEffWidth - 1 - div_r.quot; - for (long z = 0; z < 8; z++) { - // Get Destination Byte - dbits = nrow + z * imgDest.info.dwEffWidth; - if ((dbits < bdest) || (dbits > dbitsmax)) break; - if (*sbits & (128 >> z)) *dbits |= bitpos; - } - } - }//for y - -#if CXIMAGE_SUPPORT_ALPHA - if (AlphaIsValid()) { - for (x = 0; x < newWidth; x++){ - x2=newWidth-x-1; - for (y = 0; y < newHeight; y++){ - imgDest.AlphaSet(x,y,BlindAlphaGet(y, x2)); - }//for y - }//for x - } -#endif //CXIMAGE_SUPPORT_ALPHA - -#if CXIMAGE_SUPPORT_SELECTION - if (SelectionIsValid()) { - imgDest.info.rSelectionBox.left = newWidth-info.rSelectionBox.top; - imgDest.info.rSelectionBox.right = newWidth-info.rSelectionBox.bottom; - imgDest.info.rSelectionBox.bottom = info.rSelectionBox.left; - imgDest.info.rSelectionBox.top = info.rSelectionBox.right; - for (x = 0; x < newWidth; x++){ - x2=newWidth-x-1; - for (y = 0; y < newHeight; y++){ - imgDest.SelectionSet(x,y,BlindSelectionGet(y, x2)); - }//for y - }//for x - } -#endif //CXIMAGE_SUPPORT_SELECTION - - } else { - //anything other than BW: - //bd, 10. 2004: This optimized version of rotation rotates image by smaller blocks. It is quite - //a bit faster than obvious algorithm, because it produces much less CPU cache misses. - //This optimization can be tuned by changing block size (RBLOCK). 96 is good value for current - //CPUs (tested on Athlon XP and Celeron D). Larger value (if CPU has enough cache) will increase - //speed somehow, but once you drop out of CPU's cache, things will slow down drastically. - //For older CPUs with less cache, lower value would yield better results. - - BYTE *srcPtr, *dstPtr; //source and destionation for 24-bit version - int xs, ys; //x-segment and y-segment - for (xs = 0; xs < newWidth; xs+=RBLOCK) { //for all image blocks of RBLOCK*RBLOCK pixels - for (ys = 0; ys < newHeight; ys+=RBLOCK) { - if (head.biBitCount==24) { - //RGB24 optimized pixel access: - for (x = xs; x < min(newWidth, xs+RBLOCK); x++){ //do rotation - info.nProgress = (long)(100*x/newWidth); - x2=newWidth-x-1; - dstPtr = (BYTE*) imgDest.BlindGetPixelPointer(x,ys); - srcPtr = (BYTE*) BlindGetPixelPointer(ys, x2); - for (y = ys; y < min(newHeight, ys+RBLOCK); y++){ - //imgDest.SetPixelColor(x, y, GetPixelColor(y, x2)); - *(dstPtr) = *(srcPtr); - *(dstPtr+1) = *(srcPtr+1); - *(dstPtr+2) = *(srcPtr+2); - srcPtr += 3; - dstPtr += imgDest.info.dwEffWidth; - }//for y - }//for x - } else { - //anything else than 24bpp (and 1bpp): palette - for (x = xs; x < min(newWidth, xs+RBLOCK); x++){ - info.nProgress = (long)(100*x/newWidth); // - x2=newWidth-x-1; - for (y = ys; y < min(newHeight, ys+RBLOCK); y++){ - imgDest.SetPixelIndex(x, y, BlindGetPixelIndex(y, x2)); - }//for y - }//for x - }//if (version selection) -#if CXIMAGE_SUPPORT_ALPHA - if (AlphaIsValid()) { - for (x = xs; x < min(newWidth, xs+RBLOCK); x++){ - x2=newWidth-x-1; - for (y = ys; y < min(newHeight, ys+RBLOCK); y++){ - imgDest.AlphaSet(x,y,BlindAlphaGet(y, x2)); - }//for y - }//for x - }//if (alpha channel) -#endif //CXIMAGE_SUPPORT_ALPHA - -#if CXIMAGE_SUPPORT_SELECTION - if (SelectionIsValid()) { - imgDest.info.rSelectionBox.left = newWidth-info.rSelectionBox.top; - imgDest.info.rSelectionBox.right = newWidth-info.rSelectionBox.bottom; - imgDest.info.rSelectionBox.bottom = info.rSelectionBox.left; - imgDest.info.rSelectionBox.top = info.rSelectionBox.right; - for (x = xs; x < min(newWidth, xs+RBLOCK); x++){ - x2=newWidth-x-1; - for (y = ys; y < min(newHeight, ys+RBLOCK); y++){ - imgDest.SelectionSet(x,y,BlindSelectionGet(y, x2)); - }//for y - }//for x - }//if (selection) -#endif //CXIMAGE_SUPPORT_SELECTION - }//for ys - }//for xs - }//if - - //select the destination - if (iDst) iDst->Transfer(imgDest); - else Transfer(imgDest); - return true; -} - -//////////////////////////////////////////////////////////////////////////////// -bool CxImage::RotateRight(CxImage* iDst) -{ - if (!pDib) return false; - - long newWidth = GetHeight(); - long newHeight = GetWidth(); - - CxImage imgDest; - imgDest.CopyInfo(*this); - imgDest.Create(newWidth,newHeight,GetBpp(),GetType()); - imgDest.SetPalette(GetPalette()); - -#if CXIMAGE_SUPPORT_ALPHA - if (AlphaIsValid()) imgDest.AlphaCreate(); -#endif - -#if CXIMAGE_SUPPORT_SELECTION - if (SelectionIsValid()) imgDest.SelectionCreate(); -#endif - - long x,y,y2; - // Speedy rotate for BW images - if (head.biBitCount == 1) { - - BYTE *sbits, *dbits, *dbitsmax, bitpos, *nrow,*srcdisp; - ldiv_t div_r; - - BYTE *bsrc = GetBits(), *bdest = imgDest.GetBits(); - dbitsmax = bdest + imgDest.head.biSizeImage - 1; - - imgDest.Clear(0); - for (y = 0; y < head.biHeight; y++) { - // Figure out the Column we are going to be copying to - div_r = ldiv(y, (long)8); - // set bit pos of src column byte - bitpos = (BYTE)(128 >> div_r.rem); - srcdisp = bsrc + y * info.dwEffWidth; - for (x = 0; x < (long)info.dwEffWidth; x++) { - // Get Source Bits - sbits = srcdisp + x; - // Get destination column - nrow = bdest + (imgDest.head.biHeight-1-(x*8)) * imgDest.info.dwEffWidth + div_r.quot; - for (long z = 0; z < 8; z++) { - // Get Destination Byte - dbits = nrow - z * imgDest.info.dwEffWidth; - if ((dbits < bdest) || (dbits > dbitsmax)) break; - if (*sbits & (128 >> z)) *dbits |= bitpos; - } - } - } - -#if CXIMAGE_SUPPORT_ALPHA - if (AlphaIsValid()){ - for (y = 0; y < newHeight; y++){ - y2=newHeight-y-1; - for (x = 0; x < newWidth; x++){ - imgDest.AlphaSet(x,y,BlindAlphaGet(y2, x)); - } - } - } -#endif //CXIMAGE_SUPPORT_ALPHA - -#if CXIMAGE_SUPPORT_SELECTION - if (SelectionIsValid()){ - imgDest.info.rSelectionBox.left = info.rSelectionBox.bottom; - imgDest.info.rSelectionBox.right = info.rSelectionBox.top; - imgDest.info.rSelectionBox.bottom = newHeight-info.rSelectionBox.right; - imgDest.info.rSelectionBox.top = newHeight-info.rSelectionBox.left; - for (y = 0; y < newHeight; y++){ - y2=newHeight-y-1; - for (x = 0; x < newWidth; x++){ - imgDest.SelectionSet(x,y,BlindSelectionGet(y2, x)); - } - } - } -#endif //CXIMAGE_SUPPORT_SELECTION - - } else { - //anything else but BW - BYTE *srcPtr, *dstPtr; //source and destionation for 24-bit version - int xs, ys; //x-segment and y-segment - for (xs = 0; xs < newWidth; xs+=RBLOCK) { - for (ys = 0; ys < newHeight; ys+=RBLOCK) { - if (head.biBitCount==24) { - //RGB24 optimized pixel access: - for (y = ys; y < min(newHeight, ys+RBLOCK); y++){ - info.nProgress = (long)(100*y/newHeight); // - y2=newHeight-y-1; - dstPtr = (BYTE*) imgDest.BlindGetPixelPointer(xs,y); - srcPtr = (BYTE*) BlindGetPixelPointer(y2, xs); - for (x = xs; x < min(newWidth, xs+RBLOCK); x++){ - //imgDest.SetPixelColor(x, y, GetPixelColor(y2, x)); - *(dstPtr) = *(srcPtr); - *(dstPtr+1) = *(srcPtr+1); - *(dstPtr+2) = *(srcPtr+2); - dstPtr += 3; - srcPtr += info.dwEffWidth; - }//for x - }//for y - } else { - //anything else than BW & RGB24: palette - for (y = ys; y < min(newHeight, ys+RBLOCK); y++){ - info.nProgress = (long)(100*y/newHeight); // - y2=newHeight-y-1; - for (x = xs; x < min(newWidth, xs+RBLOCK); x++){ - imgDest.SetPixelIndex(x, y, BlindGetPixelIndex(y2, x)); - }//for x - }//for y - }//if -#if CXIMAGE_SUPPORT_ALPHA - if (AlphaIsValid()){ - for (y = ys; y < min(newHeight, ys+RBLOCK); y++){ - y2=newHeight-y-1; - for (x = xs; x < min(newWidth, xs+RBLOCK); x++){ - imgDest.AlphaSet(x,y,BlindAlphaGet(y2, x)); - }//for x - }//for y - }//if (has alpha) -#endif //CXIMAGE_SUPPORT_ALPHA - -#if CXIMAGE_SUPPORT_SELECTION - if (SelectionIsValid()){ - imgDest.info.rSelectionBox.left = info.rSelectionBox.bottom; - imgDest.info.rSelectionBox.right = info.rSelectionBox.top; - imgDest.info.rSelectionBox.bottom = newHeight-info.rSelectionBox.right; - imgDest.info.rSelectionBox.top = newHeight-info.rSelectionBox.left; - for (y = ys; y < min(newHeight, ys+RBLOCK); y++){ - y2=newHeight-y-1; - for (x = xs; x < min(newWidth, xs+RBLOCK); x++){ - imgDest.SelectionSet(x,y,BlindSelectionGet(y2, x)); - }//for x - }//for y - }//if (has alpha) -#endif //CXIMAGE_SUPPORT_SELECTION - }//for ys - }//for xs - }//if - - //select the destination - if (iDst) iDst->Transfer(imgDest); - else Transfer(imgDest); - return true; -} - -//////////////////////////////////////////////////////////////////////////////// -bool CxImage::Negative() -{ - if (!pDib) return false; - - if (head.biBitCount<=8){ - if (IsGrayScale()){ //GRAYSCALE, selection - if (pSelection){ - for(long y=info.rSelectionBox.bottom; y invert transparent color too - info.nBkgndColor.rgbBlue = (BYTE)(255-info.nBkgndColor.rgbBlue); - info.nBkgndColor.rgbGreen = (BYTE)(255-info.nBkgndColor.rgbGreen); - info.nBkgndColor.rgbRed = (BYTE)(255-info.nBkgndColor.rgbRed); - } - return true; -} - -//////////////////////////////////////////////////////////////////////////////// -#endif //CXIMAGE_SUPPORT_BASICTRANSFORMATIONS -//////////////////////////////////////////////////////////////////////////////// -#if CXIMAGE_SUPPORT_TRANSFORMATION -//////////////////////////////////////////////////////////////////////////////// - -//////////////////////////////////////////////////////////////////////////////// -bool CxImage::Rotate(float angle, CxImage* iDst) -{ - if (!pDib) return false; - - // Copyright (c) 1996-1998 Ulrich von Zadow - - // Negative the angle, because the y-axis is negative. - double ang = -angle*acos((float)0)/90; - int newWidth, newHeight; - int nWidth = GetWidth(); - int nHeight= GetHeight(); - double cos_angle = cos(ang); - double sin_angle = sin(ang); - - // Calculate the size of the new bitmap - POINT p1={0,0}; - POINT p2={nWidth,0}; - POINT p3={0,nHeight}; - POINT p4={nWidth,nHeight}; - CxPoint2 newP1,newP2,newP3,newP4, leftTop, rightTop, leftBottom, rightBottom; - - newP1.x = (float)p1.x; - newP1.y = (float)p1.y; - newP2.x = (float)(p2.x*cos_angle - p2.y*sin_angle); - newP2.y = (float)(p2.x*sin_angle + p2.y*cos_angle); - newP3.x = (float)(p3.x*cos_angle - p3.y*sin_angle); - newP3.y = (float)(p3.x*sin_angle + p3.y*cos_angle); - newP4.x = (float)(p4.x*cos_angle - p4.y*sin_angle); - newP4.y = (float)(p4.x*sin_angle + p4.y*cos_angle); - - leftTop.x = min(min(newP1.x,newP2.x),min(newP3.x,newP4.x)); - leftTop.y = min(min(newP1.y,newP2.y),min(newP3.y,newP4.y)); - rightBottom.x = max(max(newP1.x,newP2.x),max(newP3.x,newP4.x)); - rightBottom.y = max(max(newP1.y,newP2.y),max(newP3.y,newP4.y)); - leftBottom.x = leftTop.x; - leftBottom.y = rightBottom.y; - rightTop.x = rightBottom.x; - rightTop.y = leftTop.y; - - newWidth = (int) floor(0.5f + rightTop.x - leftTop.x); - newHeight= (int) floor(0.5f + leftBottom.y - leftTop.y); - CxImage imgDest; - imgDest.CopyInfo(*this); - imgDest.Create(newWidth,newHeight,GetBpp(),GetType()); - imgDest.SetPalette(GetPalette()); - -#if CXIMAGE_SUPPORT_ALPHA - if(AlphaIsValid()) //MTA: Fix for rotation problem when the image has an alpha channel - { - imgDest.AlphaCreate(); - imgDest.AlphaClear(); - } -#endif //CXIMAGE_SUPPORT_ALPHA - - int x,y,newX,newY,oldX,oldY; - - if (head.biClrUsed==0){ //RGB - for (y = (int)leftTop.y, newY = 0; y<=(int)leftBottom.y; y++,newY++){ - info.nProgress = (long)(100*newY/newHeight); - if (info.nEscape) break; - for (x = (int)leftTop.x, newX = 0; x<=(int)rightTop.x; x++,newX++){ - oldX = (long)(x*cos_angle + y*sin_angle + 0.5); - oldY = (long)(y*cos_angle - x*sin_angle + 0.5); - imgDest.SetPixelColor(newX,newY,GetPixelColor(oldX,oldY)); -#if CXIMAGE_SUPPORT_ALPHA - imgDest.AlphaSet(newX,newY,AlphaGet(oldX,oldY)); //MTA: copy the alpha value -#endif //CXIMAGE_SUPPORT_ALPHA - } - } - } else { //PALETTE - for (y = (int)leftTop.y, newY = 0; y<=(int)leftBottom.y; y++,newY++){ - info.nProgress = (long)(100*newY/newHeight); - if (info.nEscape) break; - for (x = (int)leftTop.x, newX = 0; x<=(int)rightTop.x; x++,newX++){ - oldX = (long)(x*cos_angle + y*sin_angle + 0.5); - oldY = (long)(y*cos_angle - x*sin_angle + 0.5); - imgDest.SetPixelIndex(newX,newY,GetPixelIndex(oldX,oldY)); -#if CXIMAGE_SUPPORT_ALPHA - imgDest.AlphaSet(newX,newY,AlphaGet(oldX,oldY)); //MTA: copy the alpha value -#endif //CXIMAGE_SUPPORT_ALPHA - } - } - } - //select the destination - if (iDst) iDst->Transfer(imgDest); - else Transfer(imgDest); - - return true; -} -//////////////////////////////////////////////////////////////////////////////// -/** - * Rotates image around it's center. - * Method can use interpolation with paletted images, but does not change pallete, so results vary. - * (If you have only four colours in a palette, there's not much room for interpolation.) - * - * \param angle - angle in degrees (positive values rotate clockwise) - * \param *iDst - destination image (if null, this image is changed) - * \param inMethod - interpolation method used - * (IM_NEAREST_NEIGHBOUR produces aliasing (fast), IM_BILINEAR softens picture a bit (slower) - * IM_SHARPBICUBIC is slower and produces some halos...) - * \param ofMethod - overflow method (how to choose colour of pixels that have no source) - * \param replColor - replacement colour to use (OM_COLOR, OM_BACKGROUND with no background colour...) - * \param optimizeRightAngles - call faster methods for 90, 180, and 270 degree rotations. Faster methods - * are called for angles, where error (in location of corner pixels) is less - * than 0.25 pixels. - * \param bKeepOriginalSize - rotates the image without resizing. - * - * \author ***bd*** 2.2004 - */ -bool CxImage::Rotate2(float angle, - CxImage *iDst, - InterpolationMethod inMethod, - OverflowMethod ofMethod, - RGBQUAD *replColor, - bool const optimizeRightAngles, - bool const bKeepOriginalSize) -{ - if (!pDib) return false; //no dib no go - - double ang = -angle*acos(0.0f)/90.0f; //convert angle to radians and invert (positive angle performs clockwise rotation) - float cos_angle = (float) cos(ang); //these two are needed later (to rotate) - float sin_angle = (float) sin(ang); - - //Calculate the size of the new bitmap (rotate corners of image) - CxPoint2 p[4]; //original corners of the image - p[0]=CxPoint2(-0.5f,-0.5f); - p[1]=CxPoint2(GetWidth()-0.5f,-0.5f); - p[2]=CxPoint2(-0.5f,GetHeight()-0.5f); - p[3]=CxPoint2(GetWidth()-0.5f,GetHeight()-0.5f); - CxPoint2 newp[4]; //rotated positions of corners - //(rotate corners) - if (bKeepOriginalSize){ - for (int i=0; i<4; i++) { - newp[i].x = p[i].x; - newp[i].y = p[i].y; - }//for - } else { - for (int i=0; i<4; i++) { - newp[i].x = (p[i].x*cos_angle - p[i].y*sin_angle); - newp[i].y = (p[i].x*sin_angle + p[i].y*cos_angle); - }//for i - - if (optimizeRightAngles) { - //For rotations of 90, -90 or 180 or 0 degrees, call faster routines - if (newp[3].Distance(CxPoint2(GetHeight()-0.5f, 0.5f-GetWidth())) < 0.25) - //rotation right for circa 90 degrees (diagonal pixels less than 0.25 pixel away from 90 degree rotation destination) - return RotateRight(iDst); - if (newp[3].Distance(CxPoint2(0.5f-GetHeight(), -0.5f+GetWidth())) < 0.25) - //rotation left for ~90 degrees - return RotateLeft(iDst); - if (newp[3].Distance(CxPoint2(0.5f-GetWidth(), 0.5f-GetHeight())) < 0.25) - //rotation left for ~180 degrees - return Rotate180(iDst); - if (newp[3].Distance(p[3]) < 0.25) { - //rotation not significant - if (iDst) iDst->Copy(*this); //copy image to iDst, if required - return true; //and we're done - }//if - }//if - }//if - - //(read new dimensions from location of corners) - float minx = (float) min(min(newp[0].x,newp[1].x),min(newp[2].x,newp[3].x)); - float miny = (float) min(min(newp[0].y,newp[1].y),min(newp[2].y,newp[3].y)); - float maxx = (float) max(max(newp[0].x,newp[1].x),max(newp[2].x,newp[3].x)); - float maxy = (float) max(max(newp[0].y,newp[1].y),max(newp[2].y,newp[3].y)); - int newWidth = (int) floor(maxx-minx+0.5f); - int newHeight= (int) floor(maxy-miny+0.5f); - float ssx=((maxx+minx)- ((float) newWidth-1))/2.0f; //start for x - float ssy=((maxy+miny)- ((float) newHeight-1))/2.0f; //start for y - - float newxcenteroffset = 0.5f * newWidth; - float newycenteroffset = 0.5f * newHeight; - if (bKeepOriginalSize){ - ssx -= 0.5f * GetWidth(); - ssy -= 0.5f * GetHeight(); - } - - //create destination image - CxImage imgDest; - imgDest.CopyInfo(*this); - imgDest.Create(newWidth,newHeight,GetBpp(),GetType()); - imgDest.SetPalette(GetPalette()); -#if CXIMAGE_SUPPORT_ALPHA - if(AlphaIsValid()) imgDest.AlphaCreate(); //MTA: Fix for rotation problem when the image has an alpha channel -#endif //CXIMAGE_SUPPORT_ALPHA - - RGBQUAD rgb; //pixel colour - RGBQUAD rc; - if (replColor!=0) - rc=*replColor; - else { - rc.rgbRed=255; rc.rgbGreen=255; rc.rgbBlue=255; rc.rgbReserved=0; - }//if - float x,y; //destination location (float, with proper offset) - float origx, origy; //origin location - int destx, desty; //destination location - - y=ssy; //initialize y - if (!IsIndexed()){ //RGB24 - //optimized RGB24 implementation (direct write to destination): - BYTE *pxptr; -#if CXIMAGE_SUPPORT_ALPHA - BYTE *pxptra=0; -#endif //CXIMAGE_SUPPORT_ALPHA - for (desty=0; destyTransfer(imgDest); - else Transfer(imgDest); - - return true; -} -//////////////////////////////////////////////////////////////////////////////// -bool CxImage::Rotate180(CxImage* iDst) -{ - if (!pDib) return false; - - long wid = GetWidth(); - long ht = GetHeight(); - - CxImage imgDest; - imgDest.CopyInfo(*this); - imgDest.Create(wid,ht,GetBpp(),GetType()); - imgDest.SetPalette(GetPalette()); - -#if CXIMAGE_SUPPORT_ALPHA - if (AlphaIsValid()) imgDest.AlphaCreate(); -#endif //CXIMAGE_SUPPORT_ALPHA - - long x,y,y2; - for (y = 0; y < ht; y++){ - info.nProgress = (long)(100*y/ht); // - y2=ht-y-1; - for (x = 0; x < wid; x++){ - if(head.biClrUsed==0)//RGB - imgDest.SetPixelColor(wid-x-1, y2, BlindGetPixelColor(x, y)); - else //PALETTE - imgDest.SetPixelIndex(wid-x-1, y2, BlindGetPixelIndex(x, y)); - -#if CXIMAGE_SUPPORT_ALPHA - if (AlphaIsValid()) imgDest.AlphaSet(wid-x-1, y2,BlindAlphaGet(x, y)); -#endif //CXIMAGE_SUPPORT_ALPHA - - } - } - - //select the destination - if (iDst) iDst->Transfer(imgDest); - else Transfer(imgDest); - return true; -} - -//////////////////////////////////////////////////////////////////////////////// -/** - * Resizes the image. mode can be 0 for slow (bilinear) method , - * 1 for fast (nearest pixel) method, or 2 for accurate (bicubic spline interpolation) method. - * The function is faster with 24 and 1 bpp images, slow for 4 bpp images and slowest for 8 bpp images. - */ -bool CxImage::Resample(long newx, long newy, int mode, CxImage* iDst) -{ - if (newx==0 || newy==0) return false; - - if (head.biWidth==newx && head.biHeight==newy){ - if (iDst) iDst->Copy(*this); - return true; - } - - float xScale, yScale, fX, fY; - xScale = (float)head.biWidth / (float)newx; - yScale = (float)head.biHeight / (float)newy; - - CxImage newImage; - newImage.CopyInfo(*this); - newImage.Create(newx,newy,head.biBitCount,GetType()); - newImage.SetPalette(GetPalette()); - if (!newImage.IsValid()){ - strcpy(info.szLastError,newImage.GetLastError()); - return false; - } - - switch (mode) { - case 1: // nearest pixel - { - for(long y=0; y=head.biHeight) yy = head.biHeight-1; - for(int n=-1; n<3; n++) { - r2 = r1 * KernelBSpline(b - (float)n); - xx = i_x+n; - if (xx<0) xx=0; - if (xx>=head.biWidth) xx=head.biWidth-1; - - if (head.biClrUsed){ - rgb = GetPixelColor(xx,yy); - } else { - iDst = info.pImage + yy*info.dwEffWidth + xx*3; - rgb.rgbBlue = *iDst++; - rgb.rgbGreen= *iDst++; - rgb.rgbRed = *iDst; - } - - rr += rgb.rgbRed * r2; - gg += rgb.rgbGreen * r2; - bb += rgb.rgbBlue * r2; - } - } - - if (head.biClrUsed) - newImage.SetPixelColor(x,y,RGB(rr,gg,bb)); - else { - iDst = newImage.info.pImage + y*newImage.info.dwEffWidth + x*3; - *iDst++ = (BYTE)bb; - *iDst++ = (BYTE)gg; - *iDst = (BYTE)rr; - } - - } - } - break; - } - default: // bilinear interpolation - if (!(head.biWidth>newx && head.biHeight>newy && head.biBitCount==24)) { - // (c) 1999 Steve McMahon (steve@dogma.demon.co.uk) - long ifX, ifY, ifX1, ifY1, xmax, ymax; - float ir1, ir2, ig1, ig2, ib1, ib2, dx, dy; - BYTE r,g,b; - RGBQUAD rgb1, rgb2, rgb3, rgb4; - xmax = head.biWidth-1; - ymax = head.biHeight-1; - for(long y=0; y - const long ACCURACY = 1000; - long i,j; // index for faValue - long x,y; // coordinates in source image - BYTE* pSource; - BYTE* pDest = newImage.info.pImage; - long* naAccu = new long[3 * newx + 3]; - long* naCarry = new long[3 * newx + 3]; - long* naTemp; - long nWeightX,nWeightY; - float fEndX; - long nScale = (long)(ACCURACY * xScale * yScale); - - memset(naAccu, 0, sizeof(long) * 3 * newx); - memset(naCarry, 0, sizeof(long) * 3 * newx); - - int u, v = 0; // coordinates in dest image - float fEndY = yScale - 1.0f; - for (y = 0; y < head.biHeight; y++){ - info.nProgress = (long)(100*y/head.biHeight); // - if (info.nEscape) break; - pSource = info.pImage + y * info.dwEffWidth; - u = i = 0; - fEndX = xScale - 1.0f; - if ((float)y < fEndY) { // complete source row goes into dest row - for (x = 0; x < head.biWidth; x++){ - if ((float)x < fEndX){ // complete source pixel goes into dest pixel - for (j = 0; j < 3; j++) naAccu[i + j] += (*pSource++) * ACCURACY; - } else { // source pixel is splitted for 2 dest pixels - nWeightX = (long)(((float)x - fEndX) * ACCURACY); - for (j = 0; j < 3; j++){ - naAccu[i] += (ACCURACY - nWeightX) * (*pSource); - naAccu[3 + i++] += nWeightX * (*pSource++); - } - fEndX += xScale; - u++; - } - } - } else { // source row is splitted for 2 dest rows - nWeightY = (long)(((float)y - fEndY) * ACCURACY); - for (x = 0; x < head.biWidth; x++){ - if ((float)x < fEndX){ // complete source pixel goes into 2 pixel - for (j = 0; j < 3; j++){ - naAccu[i + j] += ((ACCURACY - nWeightY) * (*pSource)); - naCarry[i + j] += nWeightY * (*pSource++); - } - } else { // source pixel is splitted for 4 dest pixels - nWeightX = (int)(((float)x - fEndX) * ACCURACY); - for (j = 0; j < 3; j++) { - naAccu[i] += ((ACCURACY - nWeightY) * (ACCURACY - nWeightX)) * (*pSource) / ACCURACY; - *pDest++ = (BYTE)(naAccu[i] / nScale); - naCarry[i] += (nWeightY * (ACCURACY - nWeightX) * (*pSource)) / ACCURACY; - naAccu[i + 3] += ((ACCURACY - nWeightY) * nWeightX * (*pSource)) / ACCURACY; - naCarry[i + 3] = (nWeightY * nWeightX * (*pSource)) / ACCURACY; - i++; - pSource++; - } - fEndX += xScale; - u++; - } - } - if (u < newx){ // possibly not completed due to rounding errors - for (j = 0; j < 3; j++) *pDest++ = (BYTE)(naAccu[i++] / nScale); - } - naTemp = naCarry; - naCarry = naAccu; - naAccu = naTemp; - memset(naCarry, 0, sizeof(int) * 3); // need only to set first pixel zero - pDest = newImage.info.pImage + (++v * newImage.info.dwEffWidth); - fEndY += yScale; - } - } - if (v < newy){ // possibly not completed due to rounding errors - for (i = 0; i < 3 * newx; i++) *pDest++ = (BYTE)(naAccu[i] / nScale); - } - delete [] naAccu; - delete [] naCarry; - } - } - -#if CXIMAGE_SUPPORT_ALPHA - if (AlphaIsValid()){ - newImage.AlphaCreate(); - for(long y=0; yTransfer(newImage); - else Transfer(newImage); - - return true; -} -//////////////////////////////////////////////////////////////////////////////// -/** - * New simpler resample. Adds new interpolation methods and simplifies code (using GetPixelColorInterpolated - * and GetAreaColorInterpolated). It also (unlike old method) interpolates alpha layer. - * - * \param newx, newy - size of resampled image - * \param inMethod - interpolation method to use (see comments at GetPixelColorInterpolated) - * If image size is being reduced, averaging is used instead (or simultaneously with) inMethod. - * \param ofMethod - what to replace outside pixels by (only significant for bordering pixels of enlarged image) - * \param iDst - pointer to destination CxImage or NULL. - * \param disableAveraging - force no averaging when shrinking images (Produces aliasing. - * You probably just want to leave this off...) - * - * \author ***bd*** 2.2004 - */ -bool CxImage::Resample2( - long newx, long newy, - InterpolationMethod const inMethod, - OverflowMethod const ofMethod, - CxImage* const iDst, - bool const disableAveraging) -{ - if (newx<=0 || newy<=0 || !pDib) return false; - - if (head.biWidth==newx && head.biHeight==newy) { - //image already correct size (just copy and return) - if (iDst) iDst->Copy(*this); - return true; - }//if - - //calculate scale of new image (less than 1 for enlarge) - float xScale, yScale; - xScale = (float)head.biWidth / (float)newx; - yScale = (float)head.biHeight / (float)newy; - - //create temporary destination image - CxImage newImage; - newImage.CopyInfo(*this); - newImage.Create(newx,newy,head.biBitCount,GetType()); - newImage.SetPalette(GetPalette()); - if (!newImage.IsValid()){ - strcpy(info.szLastError,newImage.GetLastError()); - return false; - } - - //and alpha channel if required -#if CXIMAGE_SUPPORT_ALPHA - if (AlphaIsValid()) newImage.AlphaCreate(); - BYTE *pxptra = 0; // destination alpha data -#endif - - float sX, sY; //source location - long dX,dY; //destination pixel (int value) - if ((xScale<=1 && yScale<=1) || disableAveraging) { - //image is being enlarged (or interpolation on demand) - if (!IsIndexed()) { - //RGB24 image (optimized version with direct writes) - RGBQUAD q; //pixel colour - BYTE *pxptr; //pointer to destination pixel - for(dY=0; dYTransfer(newImage); - else - Transfer(newImage); - return true; -} -//////////////////////////////////////////////////////////////////////////////// -/** - * Reduces the number of bits per pixel to nbit (1, 4 or 8). - * ppal points to a valid palette for the final image; if not supplied the function will use a standard palette. - * ppal is not necessary for reduction to 1 bpp. - */ -bool CxImage::DecreaseBpp(DWORD nbit, bool errordiffusion, RGBQUAD* ppal, DWORD clrimportant) -{ - if (!pDib) return false; - if (head.biBitCount < nbit){ - strcpy(info.szLastError,"DecreaseBpp: target BPP greater than source BPP"); - return false; - } - if (head.biBitCount == nbit){ - if (clrimportant==0) return true; - if (head.biClrImportant && (head.biClrImportant4) return false; - - CxImage tmp; - tmp.CopyInfo(*this); - tmp.Create(head.biWidth,head.biHeight,4,info.dwType); - tmp.SetPalette(GetPalette(),GetNumColors()); - if (!tmp.IsValid()){ - strcpy(info.szLastError,tmp.GetLastError()); - return false; - } - - -#if CXIMAGE_SUPPORT_SELECTION - tmp.SelectionCopy(*this); -#endif //CXIMAGE_SUPPORT_SELECTION - -#if CXIMAGE_SUPPORT_ALPHA - tmp.AlphaCopy(*this); -#endif //CXIMAGE_SUPPORT_ALPHA - - for (long y=0;y8) return false; - - CxImage tmp; - tmp.CopyInfo(*this); - tmp.Create(head.biWidth,head.biHeight,8,info.dwType); - tmp.SetPalette(GetPalette(),GetNumColors()); - if (!tmp.IsValid()){ - strcpy(info.szLastError,tmp.GetLastError()); - return false; - } - -#if CXIMAGE_SUPPORT_SELECTION - tmp.SelectionCopy(*this); -#endif //CXIMAGE_SUPPORT_SELECTION - -#if CXIMAGE_SUPPORT_ALPHA - tmp.AlphaCopy(*this); -#endif //CXIMAGE_SUPPORT_ALPHA - - for (long y=0;y24) return false; - - CxImage tmp; - tmp.CopyInfo(*this); - tmp.Create(head.biWidth,head.biHeight,24,info.dwType); - if (!tmp.IsValid()){ - strcpy(info.szLastError,tmp.GetLastError()); - return false; - } - - if (info.nBkgndIndex>=0) //translate transparency - tmp.info.nBkgndColor=GetPaletteColor((BYTE)info.nBkgndIndex); - -#if CXIMAGE_SUPPORT_SELECTION - tmp.SelectionCopy(*this); -#endif //CXIMAGE_SUPPORT_SELECTION - -#if CXIMAGE_SUPPORT_ALPHA - tmp.AlphaCopy(*this); - if (AlphaPaletteIsValid() && !AlphaIsValid()) tmp.AlphaCreate(); -#endif //CXIMAGE_SUPPORT_ALPHA - - for (long y=0;y 128) { - tmp.SetPixelIndex(x, y, 1); - error = level - 255; - } else { - tmp.SetPixelIndex(x, y, 0); - error = level; - } - - nlevel = GetPixelIndex(x + 1, y) + (error * 8) / TotalCoeffSum; - level = (BYTE)min(255, max(0, (int)nlevel)); - SetPixelIndex(x + 1, y, level); - nlevel = GetPixelIndex(x + 2, y) + (error * 4) / TotalCoeffSum; - level = (BYTE)min(255, max(0, (int)nlevel)); - SetPixelIndex(x + 2, y, level); - int i; - for (i = -2; i < 3; i++) { - switch (i) { - case -2: - coeff = 2; - break; - case -1: - coeff = 4; - break; - case 0: - coeff = 8; - break; - case 1: - coeff = 4; - break; - case 2: - coeff = 2; - break; - } - nlevel = GetPixelIndex(x + i, y + 1) + (error * coeff) / TotalCoeffSum; - level = (BYTE)min(255, max(0, (int)nlevel)); - SetPixelIndex(x + i, y + 1, level); - } - } - } - break; - } - case 3: - { - //Stucki error diffusion (Thanks to Franco Gerevini) - int TotalCoeffSum = 42; - long error, nlevel, coeff=1; - BYTE level; - - for (long y = 0; y < head.biHeight; y++) { - info.nProgress = (long)(100 * y / head.biHeight); - if (info.nEscape) - break; - for (long x = 0; x < head.biWidth; x++) { - level = BlindGetPixelIndex(x, y); - if (level > 128) { - tmp.SetPixelIndex(x, y, 1); - error = level - 255; - } else { - tmp.SetPixelIndex(x, y, 0); - error = level; - } - - nlevel = GetPixelIndex(x + 1, y) + (error * 8) / TotalCoeffSum; - level = (BYTE)min(255, max(0, (int)nlevel)); - SetPixelIndex(x + 1, y, level); - nlevel = GetPixelIndex(x + 2, y) + (error * 4) / TotalCoeffSum; - level = (BYTE)min(255, max(0, (int)nlevel)); - SetPixelIndex(x + 2, y, level); - int i; - for (i = -2; i < 3; i++) { - switch (i) { - case -2: - coeff = 2; - break; - case -1: - coeff = 4; - break; - case 0: - coeff = 8; - break; - case 1: - coeff = 4; - break; - case 2: - coeff = 2; - break; - } - nlevel = GetPixelIndex(x + i, y + 1) + (error * coeff) / TotalCoeffSum; - level = (BYTE)min(255, max(0, (int)nlevel)); - SetPixelIndex(x + i, y + 1, level); - } - for (i = -2; i < 3; i++) { - switch (i) { - case -2: - coeff = 1; - break; - case -1: - coeff = 2; - break; - case 0: - coeff = 4; - break; - case 1: - coeff = 2; - break; - case 2: - coeff = 1; - break; - } - nlevel = GetPixelIndex(x + i, y + 2) + (error * coeff) / TotalCoeffSum; - level = (BYTE)min(255, max(0, (int)nlevel)); - SetPixelIndex(x + i, y + 2, level); - } - } - } - break; - } - case 4: - { - //Jarvis, Judice and Ninke error diffusion (Thanks to Franco Gerevini) - int TotalCoeffSum = 48; - long error, nlevel, coeff=1; - BYTE level; - - for (long y = 0; y < head.biHeight; y++) { - info.nProgress = (long)(100 * y / head.biHeight); - if (info.nEscape) - break; - for (long x = 0; x < head.biWidth; x++) { - level = BlindGetPixelIndex(x, y); - if (level > 128) { - tmp.SetPixelIndex(x, y, 1); - error = level - 255; - } else { - tmp.SetPixelIndex(x, y, 0); - error = level; - } - - nlevel = GetPixelIndex(x + 1, y) + (error * 7) / TotalCoeffSum; - level = (BYTE)min(255, max(0, (int)nlevel)); - SetPixelIndex(x + 1, y, level); - nlevel = GetPixelIndex(x + 2, y) + (error * 5) / TotalCoeffSum; - level = (BYTE)min(255, max(0, (int)nlevel)); - SetPixelIndex(x + 2, y, level); - int i; - for (i = -2; i < 3; i++) { - switch (i) { - case -2: - coeff = 3; - break; - case -1: - coeff = 5; - break; - case 0: - coeff = 7; - break; - case 1: - coeff = 5; - break; - case 2: - coeff = 3; - break; - } - nlevel = GetPixelIndex(x + i, y + 1) + (error * coeff) / TotalCoeffSum; - level = (BYTE)min(255, max(0, (int)nlevel)); - SetPixelIndex(x + i, y + 1, level); - } - for (i = -2; i < 3; i++) { - switch (i) { - case -2: - coeff = 1; - break; - case -1: - coeff = 3; - break; - case 0: - coeff = 5; - break; - case 1: - coeff = 3; - break; - case 2: - coeff = 1; - break; - } - nlevel = GetPixelIndex(x + i, y + 2) + (error * coeff) / TotalCoeffSum; - level = (BYTE)min(255, max(0, (int)nlevel)); - SetPixelIndex(x + i, y + 2, level); - } - } - } - break; - } - case 5: - { - //Sierra error diffusion (Thanks to Franco Gerevini) - int TotalCoeffSum = 32; - long error, nlevel, coeff=1; - BYTE level; - - for (long y = 0; y < head.biHeight; y++) { - info.nProgress = (long)(100 * y / head.biHeight); - if (info.nEscape) - break; - for (long x = 0; x < head.biWidth; x++) { - level = BlindGetPixelIndex(x, y); - if (level > 128) { - tmp.SetPixelIndex(x, y, 1); - error = level - 255; - } else { - tmp.SetPixelIndex(x, y, 0); - error = level; - } - - nlevel = GetPixelIndex(x + 1, y) + (error * 5) / TotalCoeffSum; - level = (BYTE)min(255, max(0, (int)nlevel)); - SetPixelIndex(x + 1, y, level); - nlevel = GetPixelIndex(x + 2, y) + (error * 3) / TotalCoeffSum; - level = (BYTE)min(255, max(0, (int)nlevel)); - SetPixelIndex(x + 2, y, level); - int i; - for (i = -2; i < 3; i++) { - switch (i) { - case -2: - coeff = 2; - break; - case -1: - coeff = 4; - break; - case 0: - coeff = 5; - break; - case 1: - coeff = 4; - break; - case 2: - coeff = 2; - break; - } - nlevel = GetPixelIndex(x + i, y + 1) + (error * coeff) / TotalCoeffSum; - level = (BYTE)min(255, max(0, (int)nlevel)); - SetPixelIndex(x + i, y + 1, level); - } - for (i = -1; i < 2; i++) { - switch (i) { - case -1: - coeff = 2; - break; - case 0: - coeff = 3; - break; - case 1: - coeff = 2; - break; - } - nlevel = GetPixelIndex(x + i, y + 2) + (error * coeff) / TotalCoeffSum; - level = (BYTE)min(255, max(0, (int)nlevel)); - SetPixelIndex(x + i, y + 2, level); - } - } - } - break; - } - case 6: - { - //Stevenson and Arce error diffusion (Thanks to Franco Gerevini) - int TotalCoeffSum = 200; - long error, nlevel; - BYTE level; - - for (long y = 0; y < head.biHeight; y++) { - info.nProgress = (long)(100 * y / head.biHeight); - if (info.nEscape) - break; - for (long x = 0; x < head.biWidth; x++) { - level = BlindGetPixelIndex(x, y); - if (level > 128) { - tmp.SetPixelIndex(x, y, 1); - error = level - 255; - } else { - tmp.SetPixelIndex(x, y, 0); - error = level; - } - - int tmp_index_x = x + 2; - int tmp_index_y = y; - int tmp_coeff = 32; - nlevel = GetPixelIndex(tmp_index_x, tmp_index_y) + (error * tmp_coeff) / TotalCoeffSum; - level = (BYTE)min(255, max(0, (int)nlevel)); - SetPixelIndex(tmp_index_x, tmp_index_y, level); - - tmp_index_x = x - 3; - tmp_index_y = y + 1; - tmp_coeff = 12; - nlevel = GetPixelIndex(tmp_index_x, tmp_index_y) + (error * tmp_coeff) / TotalCoeffSum; - level = (BYTE)min(255, max(0, (int)nlevel)); - SetPixelIndex(tmp_index_x, tmp_index_y, level); - - tmp_index_x = x - 1; - tmp_coeff = 26; - nlevel = GetPixelIndex(tmp_index_x, tmp_index_y) + (error * tmp_coeff) / TotalCoeffSum; - level = (BYTE)min(255, max(0, (int)nlevel)); - SetPixelIndex(tmp_index_x, tmp_index_y, level); - - tmp_index_x = x + 1; - tmp_coeff = 30; - nlevel = GetPixelIndex(tmp_index_x, tmp_index_y) + (error * tmp_coeff) / TotalCoeffSum; - level = (BYTE)min(255, max(0, (int)nlevel)); - SetPixelIndex(tmp_index_x, tmp_index_y, level); - - tmp_index_x = x + 3; - tmp_coeff = 16; - nlevel = GetPixelIndex(tmp_index_x, tmp_index_y) + (error * tmp_coeff) / TotalCoeffSum; - level = (BYTE)min(255, max(0, (int)nlevel)); - SetPixelIndex(tmp_index_x, tmp_index_y, level); - - tmp_index_x = x - 2; - tmp_index_y = y + 2; - tmp_coeff = 12; - nlevel = GetPixelIndex(tmp_index_x, tmp_index_y) + (error * tmp_coeff) / TotalCoeffSum; - level = (BYTE)min(255, max(0, (int)nlevel)); - SetPixelIndex(tmp_index_x, tmp_index_y, level); - - tmp_index_x = x; - tmp_coeff = 26; - nlevel = GetPixelIndex(tmp_index_x, tmp_index_y) + (error * tmp_coeff) / TotalCoeffSum; - level = (BYTE)min(255, max(0, (int)nlevel)); - SetPixelIndex(tmp_index_x, tmp_index_y, level); - - tmp_index_x = x + 2; - tmp_coeff = 12; - nlevel = GetPixelIndex(tmp_index_x, tmp_index_y) + (error * tmp_coeff) / TotalCoeffSum; - level = (BYTE)min(255, max(0, (int)nlevel)); - SetPixelIndex(tmp_index_x, tmp_index_y, level); - - tmp_index_x = x - 3; - tmp_index_y = y + 3; - tmp_coeff = 5; - nlevel = GetPixelIndex(tmp_index_x, tmp_index_y) + (error * tmp_coeff) / TotalCoeffSum; - level = (BYTE)min(255, max(0, (int)nlevel)); - SetPixelIndex(tmp_index_x, tmp_index_y, level); - - tmp_index_x = x - 1; - tmp_coeff = 12; - nlevel = GetPixelIndex(tmp_index_x, tmp_index_y) + (error * tmp_coeff) / TotalCoeffSum; - level = (BYTE)min(255, max(0, (int)nlevel)); - SetPixelIndex(tmp_index_x, tmp_index_y, level); - - tmp_index_x = x + 1; - tmp_coeff = 12; - nlevel = GetPixelIndex(tmp_index_x, tmp_index_y) + (error * tmp_coeff) / TotalCoeffSum; - level = (BYTE)min(255, max(0, (int)nlevel)); - SetPixelIndex(tmp_index_x, tmp_index_y, level); - - tmp_index_x = x + 3; - tmp_coeff = 5; - nlevel = GetPixelIndex(tmp_index_x, tmp_index_y) + (error * tmp_coeff) / TotalCoeffSum; - level = (BYTE)min(255, max(0, (int)nlevel)); - SetPixelIndex(tmp_index_x, tmp_index_y, level); - } - } - break; - } - case 7: - { - // Bayer ordered dither - int order = 4; - //create Bayer matrix - if (order>4) order = 4; - int size = (1 << (2*order)); - BYTE* Bmatrix = (BYTE*) malloc(size * sizeof(BYTE)); - for(int i = 0; i < size; i++) { - int n = order; - int x = i / n; - int y = i % n; - int dither = 0; - while (n-- > 0){ - dither = (((dither<<1)|((x&1) ^ (y&1)))<<1) | (y&1); - x >>= 1; - y >>= 1; - } - Bmatrix[i] = (BYTE)(dither); - } - - int scale = max(0,(8-2*order)); - int level; - for (long y=0;y> scale; - if(level > Bmatrix[ (x % order) + order * (y % order) ]){ - tmp.SetPixelIndex(x,y,1); - } else { - tmp.SetPixelIndex(x,y,0); - } - } - } - - free(Bmatrix); - - break; - } - default: - { - // Floyd-Steinberg error diffusion (Thanks to Steve McMahon) - long error,nlevel,coeff=1; - BYTE level; - - for (long y=0;y 128){ - tmp.SetPixelIndex(x,y,1); - error = level-255; - } else { - tmp.SetPixelIndex(x,y,0); - error = level; - } - - nlevel = GetPixelIndex(x+1,y) + (error * 7)/16; - level = (BYTE)min(255,max(0,(int)nlevel)); - SetPixelIndex(x+1,y,level); - for(int i=-1; i<2; i++){ - switch(i){ - case -1: - coeff=3; break; - case 0: - coeff=5; break; - case 1: - coeff=1; break; - } - nlevel = GetPixelIndex(x+i,y+1) + (error * coeff)/16; - level = (BYTE)min(255,max(0,(int)nlevel)); - SetPixelIndex(x+i,y+1,level); - } - } - } - } - } - - tmp.SetPaletteColor(0,0,0,0); - tmp.SetPaletteColor(1,255,255,255); - Transfer(tmp); - - return true; -} -//////////////////////////////////////////////////////////////////////////////// -/** - * CropRotatedRectangle - * \param topx,topy : topmost and leftmost point of the rectangle - (topmost, and if there are 2 topmost points, the left one) - * \param width : size of the right hand side of rect, from (topx,topy) roundwalking clockwise - * \param height : size of the left hand side of rect, from (topx,topy) roundwalking clockwise - * \param angle : angle of the right hand side of rect, from (topx,topy) - * \param iDst : pointer to destination image (if 0, this image is modified) - * \author [VATI] - */ -bool CxImage::CropRotatedRectangle( long topx, long topy, long width, long height, float angle, CxImage* iDst) -{ - if (!pDib) return false; - - - long startx,starty,endx,endy; - double cos_angle = cos(angle/*/57.295779513082320877*/); - double sin_angle = sin(angle/*/57.295779513082320877*/); - - // if there is nothing special, call the original Crop(): - if ( fabs(angle)<0.0002 ) - return Crop( topx, topy, topx+width, topy+height, iDst); - - startx = min(topx, topx - (long)(sin_angle*(double)height)); - endx = topx + (long)(cos_angle*(double)width); - endy = topy + (long)(cos_angle*(double)height + sin_angle*(double)width); - // check: corners of the rectangle must be inside - if ( IsInside( startx, topy )==false || - IsInside( endx, endy ) == false ) - return false; - - // first crop to bounding rectangle - CxImage tmp(*this, true, false, true); - // tmp.Copy(*this, true, false, true); - if (!tmp.IsValid()){ - strcpy(info.szLastError,tmp.GetLastError()); - return false; - } - if (!tmp.Crop( startx, topy, endx, endy)){ - strcpy(info.szLastError,tmp.GetLastError()); - return false; - } - - // the midpoint of the image now became the same as the midpoint of the rectangle - // rotate new image with minus angle amount - if ( false == tmp.Rotate( (float)(-angle*57.295779513082320877) ) ) // Rotate expects angle in degrees - return false; - - // crop rotated image to the original selection rectangle - endx = (tmp.head.biWidth+width)/2; - startx = (tmp.head.biWidth-width)/2; - starty = (tmp.head.biHeight+height)/2; - endy = (tmp.head.biHeight-height)/2; - if ( false == tmp.Crop( startx, starty, endx, endy ) ) - return false; - - if (iDst) iDst->Transfer(tmp); - else Transfer(tmp); - - return true; -} -//////////////////////////////////////////////////////////////////////////////// -bool CxImage::Crop(const RECT& rect, CxImage* iDst) -{ - return Crop(rect.left, rect.top, rect.right, rect.bottom, iDst); -} -//////////////////////////////////////////////////////////////////////////////// -bool CxImage::Crop(long left, long top, long right, long bottom, CxImage* iDst) -{ - if (!pDib) return false; - - long startx = max(0L,min(left,head.biWidth)); - long endx = max(0L,min(right,head.biWidth)); - long starty = head.biHeight - max(0L,min(top,head.biHeight)); - long endy = head.biHeight - max(0L,min(bottom,head.biHeight)); - - if (startx==endx || starty==endy) return false; - - if (startx>endx) {long tmp=startx; startx=endx; endx=tmp;} - if (starty>endy) {long tmp=starty; starty=endy; endy=tmp;} - - CxImage tmp(endx-startx,endy-starty,head.biBitCount,info.dwType); - if (!tmp.IsValid()){ - strcpy(info.szLastError,tmp.GetLastError()); - return false; - } - - tmp.SetPalette(GetPalette(),head.biClrUsed); - tmp.info.nBkgndIndex = info.nBkgndIndex; - tmp.info.nBkgndColor = info.nBkgndColor; - - switch (head.biBitCount) { - case 1: - case 4: - { - for(long y=starty, yd=0; y - for(long x=startx, xd=0; x> 3; - BYTE* pDest = tmp.info.pImage; - BYTE* pSrc = info.pImage + starty * info.dwEffWidth + (startx*head.biBitCount >> 3); - for(long y=starty; y - memcpy(pDest,pSrc,linelen); - pDest+=tmp.info.dwEffWidth; - pSrc+=info.dwEffWidth; - } - } - } - -#if CXIMAGE_SUPPORT_ALPHA - if (AlphaIsValid()){ // - tmp.AlphaCreate(); - if (!tmp.AlphaIsValid()) return false; - BYTE* pDest = tmp.pAlpha; - BYTE* pSrc = pAlpha + startx + starty*head.biWidth; - for (long y=starty; yTransfer(tmp); - else Transfer(tmp); - - return true; -} -//////////////////////////////////////////////////////////////////////////////// -/** - * \param xgain, ygain : can be from 0 to 1. - * \param xpivot, ypivot : is the center of the transformation. - * \param bEnableInterpolation : if true, enables bilinear interpolation. - * \return true if everything is ok - */ -bool CxImage::Skew(float xgain, float ygain, long xpivot, long ypivot, bool bEnableInterpolation) -{ - if (!pDib) return false; - float nx,ny; - - CxImage tmp(*this); - if (!tmp.IsValid()){ - strcpy(info.szLastError,tmp.GetLastError()); - return false; - } - - long xmin,xmax,ymin,ymax; - if (pSelection){ - xmin = info.rSelectionBox.left; xmax = info.rSelectionBox.right; - ymin = info.rSelectionBox.bottom; ymax = info.rSelectionBox.top; - } else { - xmin = ymin = 0; - xmax = head.biWidth; ymax=head.biHeight; - } - for(long y=ymin; y top) || (x < left) || (x > right)) { - tmp.SetPixelIndex(x,y, pixel); - } else { - tmp.SetPixelIndex(x,y,GetPixelIndex(x-left,y-bottom)); - } - } - } - break; - } - case 8: - case 24: - { - if (head.biBitCount == 8) { - BYTE pixel = tmp.GetNearestIndex( canvascolor); - memset(tmp.info.pImage, pixel, + (tmp.info.dwEffWidth * newHeight)); - } else { - for (long y = 0; y < newHeight; ++y) { - BYTE *pDest = tmp.info.pImage + (y * tmp.info.dwEffWidth); - for (long x = 0; x < newWidth; ++x) { - *pDest++ = canvascolor.rgbBlue; - *pDest++ = canvascolor.rgbGreen; - *pDest++ = canvascolor.rgbRed; - } - } - } - - BYTE* pDest = tmp.info.pImage + (tmp.info.dwEffWidth * bottom) + (left*(head.biBitCount >> 3)); - BYTE* pSrc = info.pImage; - for(long y=bottom; y <= top; y++){ - info.nProgress = (long)(100*y/(1 + top - bottom)); - memcpy(pDest,pSrc,(head.biBitCount >> 3) * (right - left + 1)); - pDest+=tmp.info.dwEffWidth; - pSrc+=info.dwEffWidth; - } - } - } - -#if CXIMAGE_SUPPORT_SELECTION - if (SelectionIsValid()){ - if (!tmp.SelectionCreate()) - return false; - BYTE* pSrc = SelectionGetPointer(); - BYTE* pDst = tmp.SelectionGetPointer(left,bottom); - for(long y=bottom; y <= top; y++){ - memcpy(pDst,pSrc, (right - left + 1)); - pSrc+=head.biWidth; - pDst+=tmp.head.biWidth; - } - tmp.info.rSelectionBox.left = info.rSelectionBox.left + left; - tmp.info.rSelectionBox.right = info.rSelectionBox.right + left; - tmp.info.rSelectionBox.top = info.rSelectionBox.top + bottom; - tmp.info.rSelectionBox.bottom = info.rSelectionBox.bottom + bottom; - } -#endif //CXIMAGE_SUPPORT_SELECTION - -#if CXIMAGE_SUPPORT_ALPHA - if (AlphaIsValid()){ - if (!tmp.AlphaCreate()) - return false; - tmp.AlphaSet(canvascolor.rgbReserved); - BYTE* pSrc = AlphaGetPointer(); - BYTE* pDst = tmp.AlphaGetPointer(left,bottom); - for(long y=bottom; y <= top; y++){ - memcpy(pDst,pSrc, (right - left + 1)); - pSrc+=head.biWidth; - pDst+=tmp.head.biWidth; - } - } -#endif //CXIMAGE_SUPPORT_ALPHA - - //select the destination - if (iDst) iDst->Transfer(tmp); - else Transfer(tmp); - - return true; -} -//////////////////////////////////////////////////////////////////////////////// -bool CxImage::Expand(long newx, long newy, RGBQUAD canvascolor, CxImage* iDst) -{ - //thanks to - - if (!pDib) return false; - - if ((newx < head.biWidth) || (newy < head.biHeight)) return false; - - int nAddLeft = (newx - head.biWidth) / 2; - int nAddTop = (newy - head.biHeight) / 2; - - return Expand(nAddLeft, nAddTop, newx - (head.biWidth + nAddLeft), newy - (head.biHeight + nAddTop), canvascolor, iDst); -} -//////////////////////////////////////////////////////////////////////////////// -/** - * Resamples the image with the correct aspect ratio, and fills the borders. - * \param newx, newy = thumbnail size. - * \param canvascolor = border color. - * \param iDst = pointer to destination image (if it's 0, this image is modified). - * \return true if everything is ok. - * \author [Colin Urquhart] - */ -bool CxImage::Thumbnail(long newx, long newy, RGBQUAD canvascolor, CxImage* iDst) -{ - if (!pDib) return false; - - if ((newx <= 0) || (newy <= 0)) return false; - - CxImage tmp(*this); - if (!tmp.IsValid()){ - strcpy(info.szLastError,tmp.GetLastError()); - return false; - } - - // determine whether we need to shrink the image - if ((head.biWidth > newx) || (head.biHeight > newy)) { - float fScale; - float fAspect = (float) newx / (float) newy; - if (fAspect * head.biHeight > head.biWidth) { - fScale = (float) newy / head.biHeight; - } else { - fScale = (float) newx / head.biWidth; - } - tmp.Resample((long) (fScale * head.biWidth), (long) (fScale * head.biHeight), 0); - } - - // expand the frame - tmp.Expand(newx, newy, canvascolor, iDst); - - //select the destination - if (iDst) iDst->Transfer(tmp); - else Transfer(tmp); - return true; -} -//////////////////////////////////////////////////////////////////////////////// -/** - * Perform circle_based transformations. - * \param type - for different transformations - * - 0 for normal (proturberant) FishEye - * - 1 for reverse (concave) FishEye - * - 2 for Swirle - * - 3 for Cilinder mirror - * - 4 for bathroom - * - * \param rmax - effect radius. If 0, the whole image is processed - * \param Koeff - only for swirle - * \author Arkadiy Olovyannikov ark(at)msun(dot)ru - */ -bool CxImage::CircleTransform(int type,long rmax,float Koeff) -{ - if (!pDib) return false; - - long nx,ny; - double angle,radius,rnew; - - CxImage tmp(*this); - if (!tmp.IsValid()){ - strcpy(info.szLastError,tmp.GetLastError()); - return false; - } - - long xmin,xmax,ymin,ymax,xmid,ymid; - if (pSelection){ - xmin = info.rSelectionBox.left; xmax = info.rSelectionBox.right; - ymin = info.rSelectionBox.bottom; ymax = info.rSelectionBox.top; - } else { - xmin = ymin = 0; - xmax = head.biWidth; ymax=head.biHeight; - } - - xmid = (long) (tmp.GetWidth()/2); - ymid = (long) (tmp.GetHeight()/2); - - if (!rmax) rmax=(long)sqrt((float)((xmid-xmin)*(xmid-xmin)+(ymid-ymin)*(ymid-ymin))); - if (Koeff==0.0f) Koeff=1.0f; - - for(long y=ymin; yhead.biWidth || newy>head.biHeight) { - //let me repeat... this method can't enlarge image - strcpy(info.szLastError,"QIShrink can't enlarge image"); - return false; - } - - if (newx==head.biWidth && newy==head.biHeight) { - //image already correct size (just copy and return) - if (iDst) iDst->Copy(*this); - return true; - }//if - - //create temporary destination image - CxImage newImage; - newImage.CopyInfo(*this); - newImage.Create(newx,newy,(bChangeBpp)?24:head.biBitCount,GetType()); - newImage.SetPalette(GetPalette()); - if (!newImage.IsValid()){ - strcpy(info.szLastError,newImage.GetLastError()); - return false; - } - - //and alpha channel if required -#if CXIMAGE_SUPPORT_ALPHA - if (AlphaIsValid()) newImage.AlphaCreate(); -#endif - - const int oldx = head.biWidth; - const int oldy = head.biHeight; - - int accuCellSize = 4; -#if CXIMAGE_SUPPORT_ALPHA - BYTE *alphaPtr; - if (AlphaIsValid()) accuCellSize=5; -#endif - - unsigned int *accu = new unsigned int[newx*accuCellSize]; //array for suming pixels... one pixel for every destination column - unsigned int *accuPtr; //pointer for walking through accu - //each cell consists of blue, red, green component and count of pixels summed in this cell - memset(accu, 0, newx * accuCellSize * sizeof(unsigned int)); //clear accu - - if (!IsIndexed()) { - //RGB24 version with pointers - BYTE *destPtr, *srcPtr, *destPtrS, *srcPtrS; //destination and source pixel, and beginnings of current row - srcPtrS=(BYTE*)BlindGetPixelPointer(0,0); - destPtrS=(BYTE*)newImage.BlindGetPixelPointer(0,0); - int ex=0, ey=0; //ex and ey replace division... - int dy=0; - //(we just add pixels, until by adding newx or newy we get a number greater than old size... then - // it's time to move to next pixel) - - for(int y=0; yoldx) { //when we reach oldx, it's time to move to new slot - accuPtr += accuCellSize; - ex -= oldx; //(substract oldx from ex and resume from there on) - }//if (ex overflow) - }//for x - - if (ey>=oldy) { //now when this happens - ey -= oldy; //it's time to move to new destination row - destPtr = destPtrS; //reset pointers to proper initial values - accuPtr = accu; -#if CXIMAGE_SUPPORT_ALPHA - alphaPtr = newImage.AlphaGetPointer(0, dy++); -#endif - for (int k=0; koldx) { //when we reach oldx, it's time to move to new slot - accuPtr += accuCellSize; - ex -= oldx; //(substract oldx from ex and resume from there on) - }//if (ex overflow) - }//for x - - if (ey>=oldy) { //now when this happens - ey -= oldy; //it's time to move to new destination row - accuPtr = accu; - for (int dx=0; dxTransfer(newImage); - else - Transfer(newImage); - return true; - -} - -//////////////////////////////////////////////////////////////////////////////// -#endif //CXIMAGE_SUPPORT_TRANSFORMATION diff --git a/src/3rdParty/CxImage/CxImage/ximawbmp.cpp b/src/3rdParty/CxImage/CxImage/ximawbmp.cpp deleted file mode 100644 index bbf668335d..0000000000 --- a/src/3rdParty/CxImage/CxImage/ximawbmp.cpp +++ /dev/null @@ -1,134 +0,0 @@ -/* - * File: ximawbmp.cpp - * Purpose: Platform Independent WBMP Image Class Loader and Writer - * 12/Jul/2002 Davide Pizzolato - www.xdp.it - * CxImage version 6.0.0 02/Feb/2008 - */ - -#include "ximawbmp.h" - -#if CXIMAGE_SUPPORT_WBMP - -#include "ximaiter.h" - -//////////////////////////////////////////////////////////////////////////////// -#if CXIMAGE_SUPPORT_DECODE -//////////////////////////////////////////////////////////////////////////////// -bool CxImageWBMP::Decode(CxFile *hFile) -{ - if (hFile == NULL) return false; - - WBMPHEADER wbmpHead; - - cx_try - { - ReadOctet(hFile, &wbmpHead.Type); - - DWORD dat; - ReadOctet(hFile, &dat); - wbmpHead.FixHeader = (BYTE)dat; - - ReadOctet(hFile, &wbmpHead.ImageWidth); - ReadOctet(hFile, &wbmpHead.ImageHeight); - - if (hFile->Eof()) - cx_throw("Not a WBMP"); - - if (wbmpHead.Type != 0) - cx_throw("Unsupported WBMP type"); - - head.biWidth = wbmpHead.ImageWidth; - head.biHeight= wbmpHead.ImageHeight; - - if (head.biWidth<=0 || head.biHeight<=0) - cx_throw("Corrupted WBMP"); - - if (info.nEscape == -1){ - info.dwType = CXIMAGE_FORMAT_WBMP; - return true; - } - - Create(head.biWidth, head.biHeight, 1, CXIMAGE_FORMAT_WBMP); - if (!IsValid()) cx_throw("WBMP Create failed"); - SetGrayPalette(); - - int linewidth=(head.biWidth+7)/8; - CImageIterator iter(this); - iter.Upset(); - for (long y=0; y < head.biHeight; y++){ - hFile->Read(iter.GetRow(),linewidth,1); - iter.PrevRow(); - } - - } cx_catch { - if (strcmp(message,"")) strncpy(info.szLastError,message,255); - return FALSE; - } - return true; -} -//////////////////////////////////////////////////////////////////////////////// -bool CxImageWBMP::ReadOctet(CxFile * hFile, DWORD *data) -{ - BYTE c; - *data = 0; - do { - if (hFile->Eof()) return false; - c = (BYTE)hFile->GetC(); - *data <<= 7; - *data |= (c & 0x7F); - } while ((c&0x80)!=0); - return true; -} -//////////////////////////////////////////////////////////////////////////////// -#endif //CXIMAGE_SUPPORT_DECODE -//////////////////////////////////////////////////////////////////////////////// -#if CXIMAGE_SUPPORT_ENCODE -//////////////////////////////////////////////////////////////////////////////// -bool CxImageWBMP::Encode(CxFile * hFile) -{ - if (EncodeSafeCheck(hFile)) return false; - - //check format limits - if (head.biBitCount!=1){ - strcpy(info.szLastError,"Can't save this image as WBMP"); - return false; - } - - WBMPHEADER wbmpHead; - wbmpHead.Type=0; - wbmpHead.FixHeader=0; - wbmpHead.ImageWidth=head.biWidth; - wbmpHead.ImageHeight=head.biHeight; - - // Write the file header - hFile->PutC('\0'); - hFile->PutC('\0'); - WriteOctet(hFile,wbmpHead.ImageWidth); - WriteOctet(hFile,wbmpHead.ImageHeight); - // Write the pixels - int linewidth=(wbmpHead.ImageWidth+7)/8; - CImageIterator iter(this); - iter.Upset(); - for (DWORD y=0; y < wbmpHead.ImageHeight; y++){ - hFile->Write(iter.GetRow(),linewidth,1); - iter.PrevRow(); - } - return true; -} -//////////////////////////////////////////////////////////////////////////////// -bool CxImageWBMP::WriteOctet(CxFile * hFile, const DWORD data) -{ - int ns = 0; - while (data>>(ns+7)) ns+=7; - while (ns>0){ - if (!hFile->PutC(0x80 | (BYTE)(data>>ns))) return false; - ns-=7; - } - if (!(hFile->PutC((BYTE)(0x7F & data)))) return false; - return true; -} -//////////////////////////////////////////////////////////////////////////////// -#endif // CXIMAGE_SUPPORT_ENCODE -//////////////////////////////////////////////////////////////////////////////// -#endif // CXIMAGE_SUPPORT_WBMP - diff --git a/src/3rdParty/CxImage/CxImage/ximawbmp.h b/src/3rdParty/CxImage/CxImage/ximawbmp.h deleted file mode 100644 index 8103345b42..0000000000 --- a/src/3rdParty/CxImage/CxImage/ximawbmp.h +++ /dev/null @@ -1,49 +0,0 @@ -/* - * File: ximawbmp.h - * Purpose: WBMP Image Class Loader and Writer - */ -/* ========================================================== - * CxImageWBMP (c) 12/Jul/2002 Davide Pizzolato - www.xdp.it - * For conditions of distribution and use, see copyright notice in ximage.h - * ========================================================== - */ -#if !defined(__ximaWBMP_h) -#define __ximaWBMP_h - -#include "ximage.h" - -#if CXIMAGE_SUPPORT_WBMP - -class CxImageWBMP: public CxImage -{ -#pragma pack(1) -typedef struct tagWbmpHeader -{ - DWORD Type; // 0 - BYTE FixHeader; // 0 - DWORD ImageWidth; // Image Width - DWORD ImageHeight; // Image Height -} WBMPHEADER; -#pragma pack() -public: - CxImageWBMP(): CxImage(CXIMAGE_FORMAT_WBMP) {} - -// bool Load(const TCHAR * imageFileName){ return CxImage::Load(imageFileName,CXIMAGE_FORMAT_WBMP);} -// bool Save(const TCHAR * imageFileName){ return CxImage::Save(imageFileName,CXIMAGE_FORMAT_WBMP);} - bool Decode(CxFile * hFile); - bool Decode(FILE *hFile) { CxIOFile file(hFile); return Decode(&file); } -protected: - bool ReadOctet(CxFile * hFile, DWORD *data); - -public: -#if CXIMAGE_SUPPORT_ENCODE - bool Encode(CxFile * hFile); - bool Encode(FILE *hFile) { CxIOFile file(hFile); return Encode(&file); } -protected: - bool WriteOctet(CxFile * hFile, const DWORD data); -#endif // CXIMAGE_SUPPORT_ENCODE -}; - -#endif - -#endif diff --git a/src/3rdParty/CxImage/CxImage/ximawmf.cpp b/src/3rdParty/CxImage/CxImage/ximawmf.cpp deleted file mode 100644 index 97ebf123db..0000000000 --- a/src/3rdParty/CxImage/CxImage/ximawmf.cpp +++ /dev/null @@ -1,483 +0,0 @@ -/* -********************************************************************* - * File: ximawmf.cpp - * Purpose: Windows Metafile Class Loader and Writer - * Author: Volker Horch - vhorch@gmx.de - * created: 13-Jun-2002 - * - * Note: If the code below works, i wrote it. - * If it doesn't work, i don't know who wrote it. -********************************************************************* - */ - -/* -********************************************************************* - Note by Author: -********************************************************************* - - Metafile Formats: - ================= - - There are 2 kinds of Windows Metafiles: - - Standard Windows Metafile - - Placeable Windows Metafile - - A StandardWindows Metafile looks like: - - Metafile Header (MEATAHEADER) - - Metafile Records - - A Placeable Metafile looks like: - - Aldus Header (METAFILEHEADER) - - Metafile Header (METAHEADER) - - Metafile Records - - The "Metafile Header" and the "Metafile Records" are the same - for both formats. However, the Standard Metafile does not contain any - information about the original dimensions or x/y ratio of the Metafile. - - I decided, to allow only placeable Metafiles here. If you also want to - enable Standard Metafiles, you will have to guess the dimensions of - the image. - -********************************************************************* - Limitations: see ximawmf.h - you may configure some stuff there -********************************************************************* -*/ - -#include "ximawmf.h" - -#if CXIMAGE_SUPPORT_WMF && CXIMAGE_SUPPORT_WINDOWS - -//////////////////////////////////////////////////////////////////////////////// -#if CXIMAGE_SUPPORT_DECODE -//////////////////////////////////////////////////////////////////////////////// -bool CxImageWMF::Decode(CxFile *hFile, long nForceWidth, long nForceHeight) -{ - if (hFile == NULL) return false; - - HENHMETAFILE hMeta; - HDC hDC; - int cx,cy; - - //save the current position of the file - long pos = hFile->Tell(); - - // Read the Metafile and convert to an Enhanced Metafile - METAFILEHEADER mfh; - hMeta = ConvertWmfFiletoEmf(hFile, &mfh); - if (hMeta) { // ok, it's a WMF - -///////////////////////////////////////////////////////////////////// -// We use the original WMF size information, because conversion to -// EMF adjusts the Metafile to Full Screen or does not set rclBounds at all -// ENHMETAHEADER emh; -// UINT uRet; -// uRet = GetEnhMetaFileHeader(hMeta, // handle of enhanced metafile -// sizeof(ENHMETAHEADER), // size of buffer, in bytes -// &emh); // address of buffer to receive data -// if (!uRet){ -// DeleteEnhMetaFile(hMeta); -// return false; -// } -// // calculate size -// cx = emh.rclBounds.right - emh.rclBounds.left; -// cy = emh.rclBounds.bottom - emh.rclBounds.top; -///////////////////////////////////////////////////////////////////// - - // calculate size - // scale the metafile (pixels/inch of metafile => pixels/inch of display) - // mfh.inch already checked to be <> 0 - - hDC = ::GetDC(0); - int cx1 = ::GetDeviceCaps(hDC, LOGPIXELSX); - int cy1 = ::GetDeviceCaps(hDC, LOGPIXELSY); - ::ReleaseDC(0, hDC); - - cx = (mfh.inch/2 + (mfh.bbox.right - mfh.bbox.left) * cx1) / mfh.inch; - cy = (mfh.inch/2 + (mfh.bbox.bottom - mfh.bbox.top) * cy1) / mfh.inch; - - } else { // maybe it's an EMF... - - hFile->Seek(pos,SEEK_SET); - - ENHMETAHEADER emh; - hMeta = ConvertEmfFiletoEmf(hFile, &emh); - - if (!hMeta){ - strcpy(info.szLastError,"corrupted WMF"); - return false; // definitively give up - } - - // ok, it's an EMF; calculate canvas size - cx = emh.rclBounds.right - emh.rclBounds.left; - cy = emh.rclBounds.bottom - emh.rclBounds.top; - - // alternative methods, sometime not so reliable... [DP] - //cx = emh.szlDevice.cx; - //cy = emh.szlDevice.cy; - // - //hDC = ::GetDC(0); - //float hscale = (float)GetDeviceCaps(hDC, HORZRES)/(100.0f * GetDeviceCaps(hDC, HORZSIZE)); - //float vscale = (float)GetDeviceCaps(hDC, VERTRES)/(100.0f * GetDeviceCaps(hDC, VERTSIZE)); - //::ReleaseDC(0, hDC); - //cx = (long)((emh.rclFrame.right - emh.rclFrame.left) * hscale); - //cy = (long)((emh.rclFrame.bottom - emh.rclFrame.top) * vscale); - } - - if (info.nEscape == -1) { // Check if cancelled - head.biWidth = cx; - head.biHeight= cy; - info.dwType = CXIMAGE_FORMAT_WMF; - DeleteEnhMetaFile(hMeta); - strcpy(info.szLastError,"output dimensions returned"); - return true; - } - - if (!cx || !cy) { - DeleteEnhMetaFile(hMeta); - strcpy(info.szLastError,"empty WMF"); - return false; - } - - if (nForceWidth) cx=nForceWidth; - if (nForceHeight) cy=nForceHeight; - ShrinkMetafile(cx, cy); // !! Otherwise Bitmap may have bombastic size - - HDC hDC0 = ::GetDC(0); // DC of screen - HBITMAP hBitmap = CreateCompatibleBitmap(hDC0, cx, cy); // has # colors of display - hDC = CreateCompatibleDC(hDC0); // memory dc compatible with screen - ::ReleaseDC(0, hDC0); // don't need anymore. get rid of it. - - if (hDC){ - if (hBitmap){ - RECT rc = {0,0,cx,cy}; - int bpp = ::GetDeviceCaps(hDC, BITSPIXEL); - - HBITMAP hBitmapOld = (HBITMAP)SelectObject(hDC, hBitmap); - - // clear out the entire bitmap with windows background - // because the MetaFile may not contain background information - DWORD dwBack = XMF_COLOR_BACK; -#if XMF_SUPPORT_TRANSPARENCY - if (bpp == 24) dwBack = XMF_COLOR_TRANSPARENT; -#endif - DWORD OldColor = SetBkColor(hDC, dwBack); - ExtTextOut(hDC, 0, 0, ETO_OPAQUE, &rc, NULL, 0, NULL); - SetBkColor(hDC, OldColor); - - //retrieves optional palette entries from the specified enhanced metafile - PLOGPALETTE plogPal; - PBYTE pjTmp; - HPALETTE hPal; - int iEntries = GetEnhMetaFilePaletteEntries(hMeta, 0, NULL); - if (iEntries) { - if ((plogPal = (PLOGPALETTE)GlobalAlloc(GMEM_FIXED | GMEM_ZEROINIT, - sizeof(DWORD) + sizeof(PALETTEENTRY)*iEntries )) == NULL) { - DeleteObject(hBitmap); - DeleteDC(hDC); - DeleteEnhMetaFile(hMeta); - strcpy(info.szLastError,"Cancelled"); - return false; - } - - plogPal->palVersion = 0x300; - plogPal->palNumEntries = (WORD) iEntries; - pjTmp = (PBYTE) plogPal; - pjTmp += 4; - - GetEnhMetaFilePaletteEntries(hMeta, iEntries, (PPALETTEENTRY)pjTmp); - hPal = CreatePalette(plogPal); - GlobalFree(plogPal); - - SelectPalette(hDC, hPal, FALSE); - RealizePalette(hDC); - } - - // Play the Metafile into Memory DC - BOOL bRet = PlayEnhMetaFile(hDC, // handle to a device context - hMeta, // handle to an enhanced metafile - &rc); // pointer to bounding rectangle - - SelectObject(hDC, hBitmapOld); - DeleteEnhMetaFile(hMeta); // we are done with this one - - if (info.nEscape) { // Check if cancelled - DeleteObject(hBitmap); - DeleteDC(hDC); - strcpy(info.szLastError,"Cancelled"); - return false; - } - - // the Bitmap now has the image. - // Create our DIB and convert the DDB into DIB - if (!Create(cx, cy, bpp, CXIMAGE_FORMAT_WMF)) { - DeleteObject(hBitmap); - DeleteDC(hDC); - return false; - } - -#if XMF_SUPPORT_TRANSPARENCY - if (bpp == 24) { - RGBQUAD rgbTrans = { XMF_RGBQUAD_TRANSPARENT }; - SetTransColor(rgbTrans); - } -#endif - // We're finally ready to get the DIB. Call the driver and let - // it party on our bitmap. It will fill in the color table, - // and bitmap bits of our global memory block. - bRet = GetDIBits(hDC, hBitmap, 0, - (UINT)cy, GetBits(), (LPBITMAPINFO)pDib, DIB_RGB_COLORS); - - DeleteObject(hBitmap); - DeleteDC(hDC); - - return (bRet!=0); - } else { - DeleteDC(hDC); - } - } else { - if (hBitmap) DeleteObject(hBitmap); - } - - DeleteEnhMetaFile(hMeta); - - return false; -} - -/********************************************************************** - Function: CheckMetafileHeader - Purpose: Check if the Metafileheader of a file is valid -**********************************************************************/ -BOOL CxImageWMF::CheckMetafileHeader(METAFILEHEADER *metafileheader) -{ - WORD *pw; - WORD cs; - int i; - - // check magic # - if (metafileheader->key != 0x9ac6cdd7L) return false; - - // test checksum of header - pw = (WORD *)metafileheader; - cs = *pw; - pw++; - for (i = 0; i < 9; i++) { - cs ^= *pw; - pw++; - } - - if (cs != metafileheader->checksum) return false; - - // check resolution - if ((metafileheader->inch <= 0) || (metafileheader->inch > 2540)) return false; - - return true; -} - -/********************************************************************** - Function: ConvertWmfFiletoEmf - Purpose: Converts a Windows Metafile into an Enhanced Metafile -**********************************************************************/ -HENHMETAFILE CxImageWMF::ConvertWmfFiletoEmf(CxFile *fp, METAFILEHEADER *metafileheader) -{ - HENHMETAFILE hMeta; - long lenFile; - long len; - BYTE *p; - METAHEADER mfHeader; - DWORD seekpos; - - hMeta = 0; - - // get length of the file - lenFile = fp->Size(); - - // a placeable metafile starts with a METAFILEHEADER - // read it and check metafileheader - len = fp->Read(metafileheader, 1, sizeof(METAFILEHEADER)); - if (len < sizeof(METAFILEHEADER)) return (hMeta); - - if (CheckMetafileHeader(metafileheader)) { - // This is a placeable metafile - // Convert the placeable format into something that can - // be used with GDI metafile functions - seekpos = sizeof(METAFILEHEADER); - } else { - // Not a placeable wmf. A windows metafile? - // at least not scaleable. - // we could try to convert, but would loose ratio. don't allow this - return (hMeta); - - //metafileheader->bbox.right = ?; - //metafileheader->bbox.left = ?; - //metafileheader->bbox.bottom = ?; - //metafileheader->bbox.top = ?; - //metafileheader->inch = ?; - // - //seekpos = 0; - // fp->Seek(0, SEEK_SET); // rewind - } - - // At this point we have a metaheader regardless of whether - // the metafile was a windows metafile or a placeable metafile - // so check to see if it is valid. There is really no good - // way to do this so just make sure that the mtType is either - // 1 or 2 (memory or disk file) - // in addition we compare the length of the METAHEADER against - // the length of the file. if filelength < len => no Metafile - - len = fp->Read(&mfHeader, 1, sizeof(METAHEADER)); - if (len < sizeof(METAHEADER)) return (hMeta); - - if ((mfHeader.mtType != 1) && (mfHeader.mtType != 2)) return (hMeta); - - // Length in Bytes from METAHEADER - len = mfHeader.mtSize * 2; - if (len > lenFile) return (hMeta); - - // Allocate memory for the metafile bits - p = (BYTE *)malloc(len); - if (!p) return (hMeta); - - // seek back to METAHEADER and read all the stuff at once - fp->Seek(seekpos, SEEK_SET); - lenFile = fp->Read(p, 1, len); - if (lenFile != len) { - free(p); - return (hMeta); - } - - // the following (commented code) works, but adjusts rclBound of the - // Enhanced Metafile to full screen. - // the METAFILEHEADER from above is needed to scale the image - -// hMeta = SetWinMetaFileBits(len, p, NULL, NULL); - - // scale the metafile (pixels/inch of metafile => pixels/inch of display) - - METAFILEPICT mfp; - int cx1, cy1; - HDC hDC; - - hDC = ::GetDC(0); - cx1 = ::GetDeviceCaps(hDC, LOGPIXELSX); - cy1 = ::GetDeviceCaps(hDC, LOGPIXELSY); - - memset(&mfp, 0, sizeof(mfp)); - - mfp.mm = MM_ANISOTROPIC; - mfp.xExt = 10000; //(metafileheader->bbox.right - metafileheader->bbox.left) * cx1 / metafileheader->inch; - mfp.yExt = 10000; //(metafileheader->bbox.bottom - metafileheader->bbox.top) * cy1 / metafileheader->inch; - mfp.hMF = 0; - - // in MM_ANISOTROPIC mode xExt and yExt are in MM_HIENGLISH - // MM_HIENGLISH means: Each logical unit is converted to 0.001 inch - //mfp.xExt *= 1000; - //mfp.yExt *= 1000; - // ???? - //int k = 332800 / ::GetSystemMetrics(SM_CXSCREEN); - //mfp.xExt *= k; mfp.yExt *= k; - - // fix for Win9x - while ((mfp.xExt < 6554) && (mfp.yExt < 6554)) - { - mfp.xExt *= 10; - mfp.yExt *= 10; - } - - hMeta = SetWinMetaFileBits(len, p, hDC, &mfp); - - if (!hMeta){ //try 2nd conversion using a different mapping - mfp.mm = MM_TEXT; - hMeta = SetWinMetaFileBits(len, p, hDC, &mfp); - } - - ::ReleaseDC(0, hDC); - - // Free Memory - free(p); - - return (hMeta); -} -///////////////////////////////////////////////////////////////////// -HENHMETAFILE CxImageWMF::ConvertEmfFiletoEmf(CxFile *pFile, ENHMETAHEADER *pemfh) -{ - HENHMETAFILE hMeta; - long iLen = pFile->Size(); - - // Check the header first: - long pos = pFile->Tell(); - long iLenRead = pFile->Read(pemfh, 1, sizeof(ENHMETAHEADER)); - if (iLenRead < sizeof(ENHMETAHEADER)) return NULL; - if (pemfh->iType != EMR_HEADER) return NULL; - if (pemfh->dSignature != ENHMETA_SIGNATURE) return NULL; - //if (pemfh->nBytes != (DWORD)iLen) return NULL; - pFile->Seek(pos,SEEK_SET); - - BYTE* pBuff = (BYTE *)malloc(iLen); - if (!pBuff) return (FALSE); - - // Read the Enhanced Metafile - iLenRead = pFile->Read(pBuff, 1, iLen); - if (iLenRead != iLen) { - free(pBuff); - return NULL; - } - - // Make it a Memory Metafile - hMeta = SetEnhMetaFileBits(iLen, pBuff); - - free(pBuff); // finished with this one - - if (!hMeta) return NULL; // oops. - - // Get the Enhanced Metafile Header - UINT uRet = GetEnhMetaFileHeader(hMeta, // handle of enhanced metafile - sizeof(ENHMETAHEADER), // size of buffer, in bytes - pemfh); // address of buffer to receive data - - if (!uRet) { - DeleteEnhMetaFile(hMeta); - return NULL; - } - - return (hMeta); -} -//////////////////////////////////////////////////////////////////////////////// -#endif //CXIMAGE_SUPPORT_DECODE -//////////////////////////////////////////////////////////////////////////////// -#if CXIMAGE_SUPPORT_ENCODE -///////////////////////////////////////////////////////////////////// -bool CxImageWMF::Encode(CxFile * hFile) -{ - if (hFile == NULL) return false; - strcpy(info.szLastError, "Save WMF not supported"); - return false; -} -#endif // CXIMAGE_SUPPORT_ENCODE -///////////////////////////////////////////////////////////////////// - -/********************************************************************** -Function: ShrinkMetafile -Purpose: Shrink the size of a metafile to be not larger than - the definition -**********************************************************************/ -void CxImageWMF::ShrinkMetafile(int &cx, int &cy) -{ - int xScreen = XMF_MAXSIZE_CX; - int yScreen = XMF_MAXSIZE_CY; - - if (cx > xScreen){ - cy = cy * xScreen / cx; - cx = xScreen; - } - - if (cy > yScreen){ - cx = cx * yScreen / cy; - cy = yScreen; - } -} - -#endif // CIMAGE_SUPPORT_WMF - diff --git a/src/3rdParty/CxImage/CxImage/ximawmf.h b/src/3rdParty/CxImage/CxImage/ximawmf.h deleted file mode 100644 index e5903ae2e5..0000000000 --- a/src/3rdParty/CxImage/CxImage/ximawmf.h +++ /dev/null @@ -1,154 +0,0 @@ -/* -********************************************************************* - * File: ximawmf.h - * Purpose: Windows Metafile Class Loader and Writer - * Author: Volker Horch - vhorch@gmx.de - * created: 13-Jun-2002 -********************************************************************* - */ - -/* -********************************************************************* - Notes by Author: -********************************************************************* - - Limitations: - ============ - - a) Transparency: - - A Metafile is vector graphics, which has transparency by design. - This class always converts into a Bitmap format. Transparency is - supported, but there is no good way to find out, which parts - of the Metafile are transparent. There are two ways how we can - handle this: - - - Clear the Background of the Bitmap with the background color - you like (i have used COLOR_WINDOW) and don't support transparency. - - below #define XMF_SUPPORT_TRANSPARENCY 0 - #define XMF_COLOR_BACK RGB(Background color you like) - - - Clear the Background of the Bitmap with a very unusual color - (which one ?) and use this color as the transparent color - - below #define XMF_SUPPORT_TRANSPARENCY 1 - #define XMF_COLOR_TRANSPARENT_R ... - #define XMF_COLOR_TRANSPARENT_G ... - #define XMF_COLOR_TRANSPARENT_B ... - - b) Resolution - - Once we have converted the Metafile into a Bitmap and we zoom in - or out, the image may not look very good. If we still had the - original Metafile, zooming would produce good results always. - - c) Size - - Although the filesize of a Metafile may be very small, it might - produce a Bitmap with a bombastic size. Assume you have a Metafile - with an image size of 6000*4000, which contains just one Metafile - record ((e.g. a line from (0,0) to (6000, 4000)). The filesize - of this Metafile would be let's say 100kB. If we convert it to - a 6000*4000 Bitmap with 24 Bits/Pixes, the Bitmap would consume - about 68MB of memory. - - I have chosen to limit the size of the Bitmap to max. - screensize, to avoid memory problems. - - If you want something else, - modify #define XMF_MAXSIZE_CX / XMF_MAXSIZE_CY below - -********************************************************************* -*/ - -#ifndef _XIMAWMF_H -#define _XIMAWMF_H - -#include "ximage.h" - -#if CXIMAGE_SUPPORT_WMF && CXIMAGE_SUPPORT_WINDOWS - -class CxImageWMF: public CxImage -{ - -#pragma pack(1) - -typedef struct tagRECT16 -{ - short int left; - short int top; - short int right; - short int bottom; -} RECT16; - -// taken from Windos 3.11 SDK Documentation (Programmer's Reference Volume 4: Resources) -typedef struct tagMETAFILEHEADER -{ - DWORD key; // always 0x9ac6cdd7 - WORD reserved1; // reserved = 0 - RECT16 bbox; // bounding rectangle in metafile units as defined in "inch" - WORD inch; // number of metafile units per inch (should be < 1440) - DWORD reserved2; // reserved = 0 - WORD checksum; // sum of the first 10 WORDS (using XOR operator) -} METAFILEHEADER; - -#pragma pack() - -public: - CxImageWMF(): CxImage(CXIMAGE_FORMAT_WMF) { } - - bool Decode(CxFile * hFile, long nForceWidth=0, long nForceHeight=0); - bool Decode(FILE *hFile, long nForceWidth=0, long nForceHeight=0) - { CxIOFile file(hFile); return Decode(&file,nForceWidth,nForceHeight); } - -#if CXIMAGE_SUPPORT_ENCODE - bool Encode(CxFile * hFile); - bool Encode(FILE *hFile) { CxIOFile file(hFile); return Encode(&file); } -#endif // CXIMAGE_SUPPORT_ENCODE - -protected: - void ShrinkMetafile(int &cx, int &cy); - BOOL CheckMetafileHeader(METAFILEHEADER *pmetafileheader); - HENHMETAFILE ConvertWmfFiletoEmf(CxFile *pFile, METAFILEHEADER *pmetafileheader); - HENHMETAFILE ConvertEmfFiletoEmf(CxFile *pFile, ENHMETAHEADER *pemfh); - -}; - -#define METAFILEKEY 0x9ac6cdd7L - -// Background color definition (if no transparency). see Notes above -#define XMF_COLOR_BACK GetSysColor(COLOR_WINDOW) -// alternatives -//#define XMF_COLOR_BACK RGB(192, 192, 192) // lite gray -//#define XMF_COLOR_BACK RGB( 0, 0, 0) // black -//#define XMF_COLOR_BACK RGB(255, 255, 255) // white - - -// transparency support. see Notes above -#define XMF_SUPPORT_TRANSPARENCY 0 -#define XMF_COLOR_TRANSPARENT_R 211 -#define XMF_COLOR_TRANSPARENT_G 121 -#define XMF_COLOR_TRANSPARENT_B 112 -// don't change -#define XMF_COLOR_TRANSPARENT RGB (XMF_COLOR_TRANSPARENT_R, \ - XMF_COLOR_TRANSPARENT_G, \ - XMF_COLOR_TRANSPARENT_B) -// don't change -#define XMF_RGBQUAD_TRANSPARENT XMF_COLOR_TRANSPARENT_B, \ - XMF_COLOR_TRANSPARENT_G, \ - XMF_COLOR_TRANSPARENT_R, \ - 0 -// max. size. see Notes above -// alternatives -//#define XMF_MAXSIZE_CX (GetSystemMetrics(SM_CXSCREEN)-10) -//#define XMF_MAXSIZE_CY (GetSystemMetrics(SM_CYSCREEN)-50) -//#define XMF_MAXSIZE_CX (2*GetSystemMetrics(SM_CXSCREEN)/3) -//#define XMF_MAXSIZE_CY (2*GetSystemMetrics(SM_CYSCREEN)/3) -#define XMF_MAXSIZE_CX 4000 -#define XMF_MAXSIZE_CY 4000 - - -#endif - -#endif diff --git a/src/3rdParty/CxImage/CxImage/ximawnd.cpp b/src/3rdParty/CxImage/CxImage/ximawnd.cpp deleted file mode 100644 index dd5540ca53..0000000000 --- a/src/3rdParty/CxImage/CxImage/ximawnd.cpp +++ /dev/null @@ -1,1409 +0,0 @@ -// xImaWnd.cpp : Windows functions -/* 07/08/2001 v1.00 - Davide Pizzolato - www.xdp.it - * CxImage version 6.0.0 02/Feb/2008 - */ - -#include "ximage.h" - -#include "ximaiter.h" -#include "ximabmp.h" - -//////////////////////////////////////////////////////////////////////////////// -#if defined (_WIN32_WCE) - -#ifndef DEFAULT_GUI_FONT -#define DEFAULT_GUI_FONT 17 -#endif - -#ifndef PROOF_QUALITY -#define PROOF_QUALITY 2 -#endif - -struct DIBINFO : public BITMAPINFO -{ - RGBQUAD arColors[255]; // Color table info - adds an extra 255 entries to palette - operator LPBITMAPINFO() { return (LPBITMAPINFO) this; } - operator LPBITMAPINFOHEADER() { return &bmiHeader; } - RGBQUAD* ColorTable() { return bmiColors; } -}; - -int BytesPerLine(int nWidth, int nBitsPerPixel) -{ - return ( (nWidth * nBitsPerPixel + 31) & (~31) ) / 8; -} - -int NumColorEntries(int nBitsPerPixel, int nCompression, DWORD biClrUsed) -{ - int nColors = 0; - switch (nBitsPerPixel) - { - case 1: - nColors = 2; break; - case 2: - nColors = 4; break; // winCE only - case 4: - nColors = 16; break; - case 8: - nColors =256; break; - case 24: - nColors = 0; break; - case 16: - case 32: - nColors = 3; break; // I've found that PocketPCs need this regardless of BI_RGB or BI_BITFIELDS - default: - ASSERT(FALSE); - } - // If biClrUsed is provided, and it is a legal value, use it - if (biClrUsed > 0 && biClrUsed <= (DWORD)nColors) - return biClrUsed; - - return nColors; -} - -int GetDIBits( - HDC hdc, // handle to DC - HBITMAP hbmp, // handle to bitmap - UINT uStartScan, // first scan line to set - UINT cScanLines, // number of scan lines to copy - LPVOID lpvBits, // array for bitmap bits - LPBITMAPINFO lpbi, // bitmap data buffer - UINT uUsage // RGB or palette index -) -{ - UINT iColorTableSize = 0; - - if (!hbmp) - return 0; - - // Get dimensions of bitmap - BITMAP bm; - if (!::GetObject(hbmp, sizeof(bm),(LPVOID)&bm)) - return 0; - - //3. Creating new bitmap and receive pointer to it's bits. - HBITMAP hTargetBitmap; - void *pBuffer; - - //3.1 Initilize DIBINFO structure - DIBINFO dibInfo; - dibInfo.bmiHeader.biBitCount = 24; - dibInfo.bmiHeader.biClrImportant = 0; - dibInfo.bmiHeader.biClrUsed = 0; - dibInfo.bmiHeader.biCompression = 0; - dibInfo.bmiHeader.biHeight = bm.bmHeight; - dibInfo.bmiHeader.biPlanes = 1; - dibInfo.bmiHeader.biSize = 40; - dibInfo.bmiHeader.biSizeImage = bm.bmHeight*BytesPerLine(bm.bmWidth,24); - dibInfo.bmiHeader.biWidth = bm.bmWidth; - dibInfo.bmiHeader.biXPelsPerMeter = 3780; - dibInfo.bmiHeader.biYPelsPerMeter = 3780; - dibInfo.bmiColors[0].rgbBlue = 0; - dibInfo.bmiColors[0].rgbGreen = 0; - dibInfo.bmiColors[0].rgbRed = 0; - dibInfo.bmiColors[0].rgbReserved = 0; - - //3.2 Create bitmap and receive pointer to points into pBuffer - HDC hDC = ::GetDC(NULL); - ASSERT(hDC); - hTargetBitmap = CreateDIBSection( - hDC, - (const BITMAPINFO*)dibInfo, - DIB_RGB_COLORS, - (void**)&pBuffer, - NULL, - 0); - - ::ReleaseDC(NULL, hDC); - - //4. Copy source bitmap into the target bitmap. - - //4.1 Create 2 device contexts - HDC memDc = CreateCompatibleDC(NULL); - if (!memDc) { - ASSERT(FALSE); - } - - HDC targetDc = CreateCompatibleDC(NULL); - if (!targetDc) { - ASSERT(FALSE); - } - - //4.2 Select source bitmap into one DC, target into another - HBITMAP hOldBitmap1 = (HBITMAP)::SelectObject(memDc, hbmp); - HBITMAP hOldBitmap2 = (HBITMAP)::SelectObject(targetDc, hTargetBitmap); - - //4.3 Copy source bitmap into the target one - BitBlt(targetDc, 0, 0, bm.bmWidth, bm.bmHeight, memDc, 0, 0, SRCCOPY); - - //4.4 Restore device contexts - ::SelectObject(memDc, hOldBitmap1); - ::SelectObject(targetDc, hOldBitmap2); - DeleteDC(memDc); - DeleteDC(targetDc); - - //Here we can bitmap bits: pBuffer. Note: - // 1. pBuffer contains 3 bytes per point - // 2. Lines ane from the bottom to the top! - // 3. Points in the line are from the left to the right - // 4. Bytes in one point are BGR (blue, green, red) not RGB - // 5. Don't delete pBuffer, it will be automatically deleted - // when delete hTargetBitmap - lpvBits = pBuffer; - - DeleteObject(hbmp); - //DeleteObject(hTargetBitmap); - - return 1; -} -#endif - -//////////////////////////////////////////////////////////////////////////////// -#if CXIMAGE_SUPPORT_WINDOWS -//////////////////////////////////////////////////////////////////////////////// -long CxImage::Blt(HDC pDC, long x, long y) -{ - if((pDib==0)||(pDC==0)||(!info.bEnabled)) return 0; - - HBRUSH brImage = CreateDIBPatternBrushPt(pDib, DIB_RGB_COLORS); - POINT pt; - SetBrushOrgEx(pDC,x,y,&pt); // - HBRUSH brOld = (HBRUSH) SelectObject(pDC, brImage); - PatBlt(pDC, x, y, head.biWidth, head.biHeight, PATCOPY); - SelectObject(pDC, brOld); - SetBrushOrgEx(pDC,pt.x,pt.y,NULL); - DeleteObject(brImage); - return 1; -} -//////////////////////////////////////////////////////////////////////////////// -/** - * Transfer the image in a global bitmap handle (clipboard copy) - */ -HANDLE CxImage::CopyToHandle() -{ - HANDLE hMem=NULL; - if (pDib){ - hMem= GlobalAlloc(GHND, GetSize()); - if (hMem){ - BYTE* pDst=(BYTE*)GlobalLock(hMem); - if (pDst){ - memcpy(pDst,pDib,GetSize()); - } - GlobalUnlock(hMem); - } - } - return hMem; -} -//////////////////////////////////////////////////////////////////////////////// -/** - * Global object (clipboard paste) constructor - * \param hMem: source bitmap object, the clipboard format must be CF_DIB - * \return true if everything is ok - */ -bool CxImage::CreateFromHANDLE(HANDLE hMem) -{ - if (!Destroy()) - return false; - - DWORD dwSize = GlobalSize(hMem); - if (!dwSize) return false; - - BYTE *lpVoid; //pointer to the bitmap - lpVoid = (BYTE *)GlobalLock(hMem); - BITMAPINFOHEADER *pHead; //pointer to the bitmap header - pHead = (BITMAPINFOHEADER *)lpVoid; - if (lpVoid){ - - //CxMemFile hFile(lpVoid,dwSize); - - //copy the bitmap header - memcpy(&head,pHead,sizeof(BITMAPINFOHEADER)); - //check if it's a top-down bitmap - bool bTopDownDib = head.biHeight<0; - if (bTopDownDib) head.biHeight=-head.biHeight; - //create the image - if(!Create(head.biWidth,head.biHeight,head.biBitCount)){ - GlobalUnlock(lpVoid); - return false; - } - //preserve DPI - SetXDPI((long)floor(head.biXPelsPerMeter * 254.0 / 10000.0 + 0.5)); - SetYDPI((long)floor(head.biYPelsPerMeter * 254.0 / 10000.0 + 0.5)); - - /*//copy the pixels (old way) - if((pHead->biCompression != BI_RGB) || (pHead->biBitCount == 32)){ // - // BITFIELD case - // set the internal header in the dib - memcpy(pDib,&head,sizeof(head)); - // get the bitfield masks - DWORD bf[3]; - memcpy(bf,lpVoid+pHead->biSize,12); - // transform into RGB - Bitfield2RGB(lpVoid+pHead->biSize+12,bf[0],bf[1],bf[2],(BYTE)pHead->biBitCount); - } else { //normal bitmap - memcpy(pDib,lpVoid,GetSize()); - }*/ - - // - // fill in color map - bool bIsOldBmp = (head.biSize == sizeof(BITMAPCOREHEADER)); - RGBQUAD *pRgb = GetPalette(); - if (pRgb) { - // number of colors to fill in - int nColors = DibNumColors(pHead); - if (bIsOldBmp) { - /* get pointer to BITMAPCOREINFO (old style 1.x) */ - LPBITMAPCOREINFO lpbmc = (LPBITMAPCOREINFO)lpVoid; - for (int i = nColors - 1; i >= 0; i--) { - pRgb[i].rgbRed = lpbmc->bmciColors[i].rgbtRed; - pRgb[i].rgbGreen = lpbmc->bmciColors[i].rgbtGreen; - pRgb[i].rgbBlue = lpbmc->bmciColors[i].rgbtBlue; - pRgb[i].rgbReserved = (BYTE)0; - } - } else { - /* get pointer to BITMAPINFO (new style 3.x) */ - LPBITMAPINFO lpbmi = (LPBITMAPINFO)lpVoid; - for (int i = nColors - 1; i >= 0; i--) { - pRgb[i].rgbRed = lpbmi->bmiColors[i].rgbRed; - pRgb[i].rgbGreen = lpbmi->bmiColors[i].rgbGreen; - pRgb[i].rgbBlue = lpbmi->bmiColors[i].rgbBlue; - pRgb[i].rgbReserved = (BYTE)0; - } - } - } - - // - DWORD dwCompression = pHead->biCompression; - // compressed bitmap ? - if(dwCompression!=BI_RGB || pHead->biBitCount==32 || pHead->biBitCount ==16) { - // get the bitmap bits - LPSTR lpDIBBits = (LPSTR)((BYTE*)pHead + *(DWORD*)pHead + (WORD)(GetNumColors() * sizeof(RGBQUAD))); - // decode and copy them to our image - switch (pHead->biBitCount) { - case 32 : - { - // BITFIELD case - if (dwCompression == BI_BITFIELDS || dwCompression == BI_RGB) { - // get the bitfield masks - DWORD bf[3]; - memcpy(bf,lpVoid+pHead->biSize,12); - // transform into RGB - Bitfield2RGB(lpVoid+pHead->biSize+12,bf[0],bf[1],bf[2],(BYTE)pHead->biBitCount); - } else { - // "unknown compression"; - GlobalUnlock(lpVoid); - return false; - } - } - break; - case 16 : - { - // get the bitfield masks - long offset=0; - DWORD bf[3]; - if (dwCompression == BI_BITFIELDS) { - memcpy(bf,lpVoid+pHead->biSize,12); - offset= 12; - } else { - bf[0] = 0x7C00; - bf[1] = 0x3E0; - bf[2] = 0x1F; // RGB555 - } - // copy the pixels - memcpy(info.pImage, lpDIBBits + offset, head.biHeight*((head.biWidth+1)/2)*4); - // transform into RGB - Bitfield2RGB(info.pImage, bf[0], bf[1], bf[2], 16); - } - break; - case 8 : - case 4 : - case 1 : - { - switch (dwCompression) { - case BI_RLE4: - { - BYTE status_byte = 0; - BYTE second_byte = 0; - int scanline = 0; - int bits = 0; - BOOL low_nibble = FALSE; - CImageIterator iter(this); - - for (BOOL bContinue = TRUE; bContinue; ) { - status_byte = *(lpDIBBits++); - switch (status_byte) { - case RLE_COMMAND : - status_byte = *(lpDIBBits++); - switch (status_byte) { - case RLE_ENDOFLINE : - bits = 0; - scanline++; - low_nibble = FALSE; - break; - case RLE_ENDOFBITMAP : - bContinue = FALSE; - break; - case RLE_DELTA : - { - // read the delta values - BYTE delta_x; - BYTE delta_y; - delta_x = *(lpDIBBits++); - delta_y = *(lpDIBBits++); - // apply them - bits += delta_x / 2; - scanline += delta_y; - break; - } - default : - second_byte = *(lpDIBBits++); - BYTE* sline = iter.GetRow(scanline); - for (int i = 0; i < status_byte; i++) { - if ((BYTE*)(sline+bits) < (BYTE*)(info.pImage+head.biSizeImage)){ - if (low_nibble) { - if (i&1) - *(sline + bits) |= (second_byte & 0x0f); - else - *(sline + bits) |= (second_byte & 0xf0)>>4; - bits++; - } else { - if (i&1) - *(sline + bits) = (BYTE)(second_byte & 0x0f)<<4; - else - *(sline + bits) = (BYTE)(second_byte & 0xf0); - } - } - - if ((i & 1) && (i != (status_byte - 1))) - second_byte = *(lpDIBBits++); - - low_nibble = !low_nibble; - } - if ((((status_byte+1) >> 1) & 1 ) == 1) - second_byte = *(lpDIBBits++); - break; - }; - break; - default : - { - BYTE* sline = iter.GetRow(scanline); - second_byte = *(lpDIBBits++); - for (unsigned i = 0; i < status_byte; i++) { - if ((BYTE*)(sline+bits) < (BYTE*)(info.pImage+head.biSizeImage)){ - if (low_nibble) { - if (i&1) - *(sline + bits) |= (second_byte & 0x0f); - else - *(sline + bits) |= (second_byte & 0xf0)>>4; - bits++; - } else { - if (i&1) - *(sline + bits) = (BYTE)(second_byte & 0x0f)<<4; - else - *(sline + bits) = (BYTE)(second_byte & 0xf0); - } - } - low_nibble = !low_nibble; - } - } - break; - }; - } - } - break; - case BI_RLE8 : - { - BYTE status_byte = 0; - BYTE second_byte = 0; - int scanline = 0; - int bits = 0; - CImageIterator iter(this); - - for (BOOL bContinue = TRUE; bContinue; ) { - status_byte = *(lpDIBBits++); - if (status_byte==RLE_COMMAND) { - status_byte = *(lpDIBBits++); - switch (status_byte) { - case RLE_ENDOFLINE : - bits = 0; - scanline++; - break; - case RLE_ENDOFBITMAP : - bContinue = FALSE; - break; - case RLE_DELTA : - { - // read the delta values - BYTE delta_x; - BYTE delta_y; - delta_x = *(lpDIBBits++); - delta_y = *(lpDIBBits++); - // apply them - bits += delta_x; - scanline += delta_y; - } - break; - default : - int nNumBytes = sizeof(BYTE) * status_byte; - memcpy((void *)(iter.GetRow(scanline) + bits), lpDIBBits, nNumBytes); - lpDIBBits += nNumBytes; - // align run length to even number of bytes - if ((status_byte & 1) == 1) - second_byte = *(lpDIBBits++); - bits += status_byte; - break; - }; - } else { - BYTE *sline = iter.GetRow(scanline); - second_byte = *(lpDIBBits++); - for (unsigned i = 0; i < status_byte; i++) { - if ((DWORD)bits - // // Create a device-independent bitmap - // return CreateBitmap(head.biWidth,head.biHeight, 1, head.biBitCount, GetBits()); - // use instead this code - HDC hMemDC = CreateCompatibleDC(NULL); - LPVOID pBit32; - HBITMAP bmp = CreateDIBSection(hMemDC,(LPBITMAPINFO)pDib,DIB_RGB_COLORS, &pBit32, NULL, 0); - if (pBit32) memcpy(pBit32, GetBits(), head.biSizeImage); - DeleteDC(hMemDC); - return bmp; - } - - // this single line seems to work very well - //HBITMAP bmp = CreateDIBitmap(hdc, (LPBITMAPINFOHEADER)pDib, CBM_INIT, - // GetBits(), (LPBITMAPINFO)pDib, DIB_RGB_COLORS); - // this alternative works also with _WIN32_WCE - LPVOID pBit32; - HBITMAP bmp = CreateDIBSection(hdc, (LPBITMAPINFO)pDib, DIB_RGB_COLORS, &pBit32, NULL, 0); - if (pBit32) memcpy(pBit32, GetBits(), head.biSizeImage); - - return bmp; -} -//////////////////////////////////////////////////////////////////////////////// -/** - * Bitmap resource constructor - * \param hbmp : bitmap resource handle - * \param hpal : (optional) palette, useful for 8bpp DC - * \return true if everything is ok - */ -bool CxImage::CreateFromHBITMAP(HBITMAP hbmp, HPALETTE hpal) -{ - if (!Destroy()) - return false; - - if (hbmp) { - BITMAP bm; - // get informations about the bitmap - GetObject(hbmp, sizeof(BITMAP), (LPSTR) &bm); - // create the image - if (!Create(bm.bmWidth, bm.bmHeight, bm.bmBitsPixel, 0)) - return false; - // create a device context for the bitmap - HDC dc = ::GetDC(NULL); - if (!dc) - return false; - - if (hpal){ - SelectObject(dc,hpal); //the palette you should get from the user or have a stock one - RealizePalette(dc); - } - - // copy the pixels - if (GetDIBits(dc, hbmp, 0, head.biHeight, info.pImage, - (LPBITMAPINFO)pDib, DIB_RGB_COLORS) == 0){ //replace &head with pDib - strcpy(info.szLastError,"GetDIBits failed"); - ::ReleaseDC(NULL, dc); - return false; - } - ::ReleaseDC(NULL, dc); - return true; - } - return false; -} -//////////////////////////////////////////////////////////////////////////////// -/** - * icon resource constructor - * \param hico : icon resource handle - * \return true if everything is ok - * \author []; changes [Arlen Albert Keshabian] - */ -#if !defined (_WIN32_WCE) -bool CxImage::CreateFromHICON(HICON hico) -{ - if (!Destroy() || !hico) - return false; - - bool l_bResult = true; - - ICONINFO iinfo; - GetIconInfo(hico,&iinfo); - - BITMAP l_Bitmap; - GetObject(iinfo.hbmColor, sizeof(BITMAP), &l_Bitmap); - - if(l_Bitmap.bmBitsPixel == 32) - { - BITMAPINFO l_BitmapInfo; - l_BitmapInfo.bmiHeader.biSize = sizeof(BITMAPINFOHEADER); - l_BitmapInfo.bmiHeader.biWidth = l_Bitmap.bmWidth; - l_BitmapInfo.bmiHeader.biHeight = l_Bitmap.bmHeight; - l_BitmapInfo.bmiHeader.biPlanes = l_Bitmap.bmPlanes; - l_BitmapInfo.bmiHeader.biBitCount = l_Bitmap.bmBitsPixel; - l_BitmapInfo.bmiHeader.biCompression = BI_RGB; - - RGBQUAD *l_pRawBytes = new RGBQUAD[l_Bitmap.bmWidth * l_Bitmap.bmHeight]; - - HDC dc = ::GetDC(NULL); - - if(dc) - { - if(GetDIBits(dc, iinfo.hbmColor, 0, l_Bitmap.bmHeight, l_pRawBytes, &l_BitmapInfo, DIB_RGB_COLORS)) - l_bResult = CreateFromArray((BYTE*)l_pRawBytes, l_Bitmap.bmWidth, l_Bitmap.bmHeight, l_Bitmap.bmBitsPixel, l_Bitmap.bmWidthBytes, false); - else - l_bResult = false; - - ::ReleaseDC(NULL, dc); - } - else - l_bResult = false; - - delete [] l_pRawBytes; - } - else - { - l_bResult = CreateFromHBITMAP(iinfo.hbmColor); -#if CXIMAGE_SUPPORT_ALPHA - if(l_bResult) - { - CxImage mask; - mask.CreateFromHBITMAP(iinfo.hbmMask); - mask.GrayScale(); - mask.Negative(); - AlphaSet(mask); - } -#endif - } - - DeleteObject(iinfo.hbmColor); // - DeleteObject(iinfo.hbmMask); // - - return l_bResult; -} -#endif //_WIN32_WCE -//////////////////////////////////////////////////////////////////////////////// -long CxImage::Draw(HDC hdc, const RECT& rect, RECT* pClipRect, bool bSmooth) -{ - return Draw(hdc, rect.left, rect.top, rect.right - rect.left, rect.bottom - rect.top, pClipRect,bSmooth); -} -//////////////////////////////////////////////////////////////////////////////// -/** - * Draws the image in the specified device context, with support for alpha channel, alpha palette, transparency, opacity. - * \param hdc : destination device context - * \param x,y : (optional) offset - * \param cx,cy : (optional) size. - * - If cx or cy are not specified (or less than 0), the normal width or height will be used - * - If cx or cy are different than width or height, the image will be stretched - * - * \param pClipRect : limit the drawing operations inside a given rectangle in the output device context. - * \param bSmooth : activates a bilinear filter that will enhance the appearance for zommed pictures. - * Quite slow. Needs CXIMAGE_SUPPORT_INTERPOLATION. - * \return true if everything is ok - */ -long CxImage::Draw(HDC hdc, long x, long y, long cx, long cy, RECT* pClipRect, bool bSmooth) -{ - if((pDib==0)||(hdc==0)||(cx==0)||(cy==0)||(!info.bEnabled)) return 0; - - if (cx < 0) cx = head.biWidth; - if (cy < 0) cy = head.biHeight; - bool bTransparent = info.nBkgndIndex >= 0; - bool bAlpha = pAlpha != 0; - - //required for MM_ANISOTROPIC, MM_HIENGLISH, and similar modes [Greg Peatfield] - int hdc_Restore = ::SaveDC(hdc); - if (!hdc_Restore) - return 0; - -#if !defined (_WIN32_WCE) - RECT mainbox; // (experimental) - if (pClipRect){ - GetClipBox(hdc,&mainbox); - HRGN rgn = CreateRectRgnIndirect(pClipRect); - ExtSelectClipRgn(hdc,rgn,RGN_AND); - DeleteObject(rgn); - } -#endif - - //find the smallest area to paint - RECT clipbox,paintbox; - GetClipBox(hdc,&clipbox); - - paintbox.top = min(clipbox.bottom,max(clipbox.top,y)); - paintbox.left = min(clipbox.right,max(clipbox.left,x)); - paintbox.right = max(clipbox.left,min(clipbox.right,x+cx)); - paintbox.bottom = max(clipbox.top,min(clipbox.bottom,y+cy)); - - long destw = paintbox.right - paintbox.left; - long desth = paintbox.bottom - paintbox.top; - - if (!(bTransparent || bAlpha || info.bAlphaPaletteEnabled)){ - if (cx==head.biWidth && cy==head.biHeight){ //NORMAL -#if !defined (_WIN32_WCE) - SetStretchBltMode(hdc,COLORONCOLOR); -#endif - SetDIBitsToDevice(hdc, x, y, cx, cy, 0, 0, 0, cy, - info.pImage,(BITMAPINFO*)pDib,DIB_RGB_COLORS); - } else { //STRETCH - //pixel informations - RGBQUAD c={0,0,0,0}; - //Preparing Bitmap Info - BITMAPINFO bmInfo; - memset(&bmInfo.bmiHeader,0,sizeof(BITMAPINFOHEADER)); - bmInfo.bmiHeader.biSize=sizeof(BITMAPINFOHEADER); - bmInfo.bmiHeader.biWidth=destw; - bmInfo.bmiHeader.biHeight=desth; - bmInfo.bmiHeader.biPlanes=1; - bmInfo.bmiHeader.biBitCount=24; - BYTE *pbase; //points to the final dib - BYTE *pdst; //current pixel from pbase - BYTE *ppix; //current pixel from image - //get the background - HDC TmpDC=CreateCompatibleDC(hdc); - HBITMAP TmpBmp=CreateDIBSection(hdc,&bmInfo,DIB_RGB_COLORS,(void**)&pbase,0,0); - HGDIOBJ TmpObj=SelectObject(TmpDC,TmpBmp); - - if (pbase){ - long xx,yy; - long sx,sy; - float dx,dy; - BYTE *psrc; - - long ew = ((((24 * destw) + 31) / 32) * 4); - long ymax = paintbox.bottom; - long xmin = paintbox.left; - float fx=(float)head.biWidth/(float)cx; - float fy=(float)head.biHeight/(float)cy; - - for(yy=0;yy 1 && fy > 1) { - c = GetAreaColorInterpolated(dx - 0.5f, dy - 0.5f, fx, fy, CxImage::IM_BILINEAR, CxImage::OM_REPEAT); - } else { - c = GetPixelColorInterpolated(dx - 0.5f, dy - 0.5f, CxImage::IM_BILINEAR, CxImage::OM_REPEAT); - } - } else -#endif //CXIMAGE_SUPPORT_INTERPOLATION - { - if (head.biClrUsed){ - c=GetPaletteColor(GetPixelIndex(sx,sy)); - } else { - ppix = psrc + sx*3; - c.rgbBlue = *ppix++; - c.rgbGreen= *ppix++; - c.rgbRed = *ppix; - } - } - *pdst++=c.rgbBlue; - *pdst++=c.rgbGreen; - *pdst++=c.rgbRed; - } - } - } - //paint the image & cleanup - SetDIBitsToDevice(hdc,paintbox.left,paintbox.top,destw,desth,0,0,0,desth,pbase,&bmInfo,0); - DeleteObject(SelectObject(TmpDC,TmpObj)); - DeleteDC(TmpDC); - } - } else { // draw image with transparent/alpha blending - ////////////////////////////////////////////////////////////////// - //Alpha blend - Thanks to Florian Egel - - //pixel informations - RGBQUAD c={0,0,0,0}; - RGBQUAD ct = GetTransColor(); - long* pc = (long*)&c; - long* pct= (long*)&ct; - long cit = GetTransIndex(); - long ci = 0; - - //Preparing Bitmap Info - BITMAPINFO bmInfo; - memset(&bmInfo.bmiHeader,0,sizeof(BITMAPINFOHEADER)); - bmInfo.bmiHeader.biSize=sizeof(BITMAPINFOHEADER); - bmInfo.bmiHeader.biWidth=destw; - bmInfo.bmiHeader.biHeight=desth; - bmInfo.bmiHeader.biPlanes=1; - bmInfo.bmiHeader.biBitCount=24; - - BYTE *pbase; //points to the final dib - BYTE *pdst; //current pixel from pbase - BYTE *ppix; //current pixel from image - - //get the background - HDC TmpDC=CreateCompatibleDC(hdc); - HBITMAP TmpBmp=CreateDIBSection(hdc,&bmInfo,DIB_RGB_COLORS,(void**)&pbase,0,0); - HGDIOBJ TmpObj=SelectObject(TmpDC,TmpBmp); - BitBlt(TmpDC,0,0,destw,desth,hdc,paintbox.left,paintbox.top,SRCCOPY); - - if (pbase){ - long xx,yy,alphaoffset,ix,iy; - BYTE a,a1,*psrc; - long ew = ((((24 * destw) + 31) / 32) * 4); - long ymax = paintbox.bottom; - long xmin = paintbox.left; - - if (cx!=head.biWidth || cy!=head.biHeight){ - //STRETCH - float fx=(float)head.biWidth/(float)cx; - float fy=(float)head.biHeight/(float)cy; - float dx,dy; - long sx,sy; - - for(yy=0;yy>8); - - if (head.biClrUsed){ - ci = GetPixelIndex(sx,sy); -#if CXIMAGE_SUPPORT_INTERPOLATION - if (bSmooth){ - if (fx > 1 && fy > 1) { - c = GetAreaColorInterpolated(dx - 0.5f, dy - 0.5f, fx, fy, CxImage::IM_BILINEAR, CxImage::OM_REPEAT); - } else { - c = GetPixelColorInterpolated(dx - 0.5f, dy - 0.5f, CxImage::IM_BILINEAR, CxImage::OM_REPEAT); - } - } else -#endif //CXIMAGE_SUPPORT_INTERPOLATION - { - c = GetPaletteColor(GetPixelIndex(sx,sy)); - } - if (info.bAlphaPaletteEnabled){ - a = (BYTE)((a*(1+c.rgbReserved))>>8); - } - } else { -#if CXIMAGE_SUPPORT_INTERPOLATION - if (bSmooth){ - if (fx > 1 && fy > 1) { - c = GetAreaColorInterpolated(dx - 0.5f, dy - 0.5f, fx, fy, CxImage::IM_BILINEAR, CxImage::OM_REPEAT); - } else { - c = GetPixelColorInterpolated(dx - 0.5f, dy - 0.5f, CxImage::IM_BILINEAR, CxImage::OM_REPEAT); - } - } else -#endif //CXIMAGE_SUPPORT_INTERPOLATION - { - ppix = psrc + sx*3; - c.rgbBlue = *ppix++; - c.rgbGreen= *ppix++; - c.rgbRed = *ppix; - } - } - //if (*pc!=*pct || !bTransparent){ - //if ((head.biClrUsed && ci!=cit) || ((!head.biClrUsed||bSmooth) && *pc!=*pct) || !bTransparent){ - if ((head.biClrUsed && ci!=cit) || (!head.biClrUsed && *pc!=*pct) || !bTransparent){ - // DJT, assume many pixels are fully transparent or opaque and thus avoid multiplication - if (a == 0) { // Transparent, retain dest - pdst+=3; - } else if (a == 255) { // opaque, ignore dest - *pdst++= c.rgbBlue; - *pdst++= c.rgbGreen; - *pdst++= c.rgbRed; - } else { // semi transparent - a1=(BYTE)~a; - *pdst++=(BYTE)((*pdst * a1 + a * c.rgbBlue)>>8); - *pdst++=(BYTE)((*pdst * a1 + a * c.rgbGreen)>>8); - *pdst++=(BYTE)((*pdst * a1 + a * c.rgbRed)>>8); - } - } else { - pdst+=3; - } - } - } - } else { - //NORMAL - iy=head.biHeight-ymax+y; - for(yy=0;yy>8); - - if (head.biClrUsed){ - ci = GetPixelIndex(ix,iy); - c = GetPaletteColor((BYTE)ci); - if (info.bAlphaPaletteEnabled){ - a = (BYTE)((a*(1+c.rgbReserved))>>8); - } - } else { - c.rgbBlue = *ppix++; - c.rgbGreen= *ppix++; - c.rgbRed = *ppix++; - } - - //if (*pc!=*pct || !bTransparent){ - if ((head.biClrUsed && ci!=cit) || (!head.biClrUsed && *pc!=*pct) || !bTransparent){ - // DJT, assume many pixels are fully transparent or opaque and thus avoid multiplication - if (a == 0) { // Transparent, retain dest - pdst+=3; - } else if (a == 255) { // opaque, ignore dest - *pdst++= c.rgbBlue; - *pdst++= c.rgbGreen; - *pdst++= c.rgbRed; - } else { // semi transparent - a1=(BYTE)~a; - *pdst++=(BYTE)((*pdst * a1 + a * c.rgbBlue)>>8); - *pdst++=(BYTE)((*pdst * a1 + a * c.rgbGreen)>>8); - *pdst++=(BYTE)((*pdst * a1 + a * c.rgbRed)>>8); - } - } else { - pdst+=3; - } - } - } - } - } - //paint the image & cleanup - SetDIBitsToDevice(hdc,paintbox.left,paintbox.top,destw,desth,0,0,0,desth,pbase,&bmInfo,0); - DeleteObject(SelectObject(TmpDC,TmpObj)); - DeleteDC(TmpDC); - } - -#if !defined (_WIN32_WCE) - if (pClipRect){ // (experimental) - HRGN rgn = CreateRectRgnIndirect(&mainbox); - ExtSelectClipRgn(hdc,rgn,RGN_OR); - DeleteObject(rgn); - } -#endif - - ::RestoreDC(hdc,hdc_Restore); - return 1; -} -//////////////////////////////////////////////////////////////////////////////// -long CxImage::Draw2(HDC hdc, const RECT& rect) -{ - return Draw2(hdc, rect.left, rect.top, rect.right - rect.left, rect.bottom - rect.top); -} -//////////////////////////////////////////////////////////////////////////////// -/** - * Draws (stretch) the image with single transparency support - * \param hdc : destination device context - * \param x,y : (optional) offset - * \param cx,cy : (optional) size. - * - If cx or cy are not specified (or less than 0), the normal width or height will be used - * - If cx or cy are different than width or height, the image will be stretched - * - * \return true if everything is ok - */ -long CxImage::Draw2(HDC hdc, long x, long y, long cx, long cy) -{ - if((pDib==0)||(hdc==0)||(cx==0)||(cy==0)||(!info.bEnabled)) return 0; - if (cx < 0) cx = head.biWidth; - if (cy < 0) cy = head.biHeight; - bool bTransparent = (info.nBkgndIndex >= 0); - - //required for MM_ANISOTROPIC, MM_HIENGLISH, and similar modes [Greg Peatfield] - int hdc_Restore = ::SaveDC(hdc); - if (!hdc_Restore) - return 0; - - if (!bTransparent){ -#if !defined (_WIN32_WCE) - SetStretchBltMode(hdc,COLORONCOLOR); -#endif - StretchDIBits(hdc, x, y, cx, cy, 0, 0, head.biWidth, head.biHeight, - info.pImage,(BITMAPINFO*)pDib, DIB_RGB_COLORS,SRCCOPY); - } else { - // draw image with transparent background - const int safe = 0; // or else GDI fails in the following - sometimes - RECT rcDst = {x+safe, y+safe, x+cx, y+cy}; - if (RectVisible(hdc, &rcDst)){ - ///////////////////////////////////////////////////////////////// - // True Mask Method - Thanks to Paul Reynolds and Ron Gery - int nWidth = head.biWidth; - int nHeight = head.biHeight; - // Create two memory dcs for the image and the mask - HDC dcImage=CreateCompatibleDC(hdc); - HDC dcTrans=CreateCompatibleDC(hdc); - // Select the image into the appropriate dc - HBITMAP bm = CreateCompatibleBitmap(hdc, nWidth, nHeight); - HBITMAP pOldBitmapImage = (HBITMAP)SelectObject(dcImage,bm); -#if !defined (_WIN32_WCE) - SetStretchBltMode(dcImage,COLORONCOLOR); -#endif - StretchDIBits(dcImage, 0, 0, nWidth, nHeight, 0, 0, nWidth, nHeight, - info.pImage,(BITMAPINFO*)pDib,DIB_RGB_COLORS,SRCCOPY); - - // Create the mask bitmap - HBITMAP bitmapTrans = CreateBitmap(nWidth, nHeight, 1, 1, NULL); - // Select the mask bitmap into the appropriate dc - HBITMAP pOldBitmapTrans = (HBITMAP)SelectObject(dcTrans, bitmapTrans); - // Build mask based on transparent colour - RGBQUAD rgbBG; - if (head.biBitCount<24) rgbBG = GetPaletteColor((BYTE)info.nBkgndIndex); - else rgbBG = info.nBkgndColor; - COLORREF crColour = RGB(rgbBG.rgbRed, rgbBG.rgbGreen, rgbBG.rgbBlue); - COLORREF crOldBack = SetBkColor(dcImage,crColour); - BitBlt(dcTrans,0, 0, nWidth, nHeight, dcImage, 0, 0, SRCCOPY); - - // Do the work - True Mask method - cool if not actual display - StretchBlt(hdc,x, y,cx,cy, dcImage, 0, 0, nWidth, nHeight, SRCINVERT); - StretchBlt(hdc,x, y,cx,cy, dcTrans, 0, 0, nWidth, nHeight, SRCAND); - StretchBlt(hdc,x, y,cx,cy, dcImage, 0, 0, nWidth, nHeight, SRCINVERT); - - // Restore settings - SelectObject(dcImage,pOldBitmapImage); - SelectObject(dcTrans,pOldBitmapTrans); - SetBkColor(hdc,crOldBack); - DeleteObject( bitmapTrans ); // RG 29/01/2002 - DeleteDC(dcImage); - DeleteDC(dcTrans); - DeleteObject(bm); - } - } - ::RestoreDC(hdc,hdc_Restore); - return 1; -} -//////////////////////////////////////////////////////////////////////////////// -long CxImage::Stretch(HDC hdc, const RECT& rect, DWORD dwRop) -{ - return Stretch(hdc, rect.left, rect.top, rect.right - rect.left, rect.bottom - rect.top, dwRop); -} -//////////////////////////////////////////////////////////////////////////////// -/** - * Stretch the image. Obsolete: use Draw() or Draw2() - * \param hdc : destination device context - * \param xoffset,yoffset : (optional) offset - * \param xsize,ysize : size. - * \param dwRop : raster operation code (see BitBlt documentation) - * \return true if everything is ok - */ -long CxImage::Stretch(HDC hdc, long xoffset, long yoffset, long xsize, long ysize, DWORD dwRop) -{ - if((pDib)&&(hdc)) { - //palette must be correctly filled -#if !defined (_WIN32_WCE) - SetStretchBltMode(hdc,COLORONCOLOR); -#endif - StretchDIBits(hdc, xoffset, yoffset, - xsize, ysize, 0, 0, head.biWidth, head.biHeight, - info.pImage,(BITMAPINFO*)pDib,DIB_RGB_COLORS,dwRop); - return 1; - } - return 0; -} -//////////////////////////////////////////////////////////////////////////////// -/** - * Tiles the device context in the specified rectangle with the image. - * \param hdc : destination device context - * \param rc : tiled rectangle in the output device context - * \return true if everything is ok - */ -long CxImage::Tile(HDC hdc, RECT *rc) -{ - if((pDib)&&(hdc)&&(rc)) { - int w = rc->right - rc->left; - int h = rc->bottom - rc->top; - int x,y,z; - int bx=head.biWidth; - int by=head.biHeight; - for (y = 0 ; y < h ; y += by){ - if ((y+by)>h) by=h-y; - z=bx; - for (x = 0 ; x < w ; x += z){ - if ((x+z)>w) z=w-x; - RECT r = {rc->left + x,rc->top + y,rc->left + x + z,rc->top + y + by}; - Draw(hdc,rc->left + x, rc->top + y,-1,-1,&r); - } - } - return 1; - } - return 0; -} -//////////////////////////////////////////////////////////////////////////////// -// For UNICODE support: char -> TCHAR -long CxImage::DrawString(HDC hdc, long x, long y, const TCHAR* text, RGBQUAD color, const TCHAR* font, long lSize, long lWeight, BYTE bItalic, BYTE bUnderline, bool bSetAlpha) -//long CxImage::DrawString(HDC hdc, long x, long y, const char* text, RGBQUAD color, const char* font, long lSize, long lWeight, BYTE bItalic, BYTE bUnderline, bool bSetAlpha) -{ - if (IsValid()){ - //get the background - HDC pDC; - if (hdc) pDC=hdc; else pDC = ::GetDC(0); - if (pDC==NULL) return 0; - HDC TmpDC=CreateCompatibleDC(pDC); - if (hdc==NULL) ::ReleaseDC(0, pDC); - if (TmpDC==NULL) return 0; - //choose the font - HFONT m_Font; - LOGFONT* m_pLF; - m_pLF=(LOGFONT*)calloc(1,sizeof(LOGFONT)); - _tcsncpy(m_pLF->lfFaceName,font,31); // For UNICODE support - //strncpy(m_pLF->lfFaceName,font,31); - m_pLF->lfHeight=lSize; - m_pLF->lfWeight=lWeight; - m_pLF->lfItalic=bItalic; - m_pLF->lfUnderline=bUnderline; - m_Font=CreateFontIndirect(m_pLF); - //select the font in the dc - HFONT pOldFont=NULL; - if (m_Font) - pOldFont = (HFONT)SelectObject(TmpDC,m_Font); - else - pOldFont = (HFONT)SelectObject(TmpDC,GetStockObject(DEFAULT_GUI_FONT)); - - //Set text color - SetTextColor(TmpDC,RGB(255,255,255)); - SetBkColor(TmpDC,RGB(0,0,0)); - //draw the text - SetBkMode(TmpDC,OPAQUE); - //Set text position; - RECT pos = {0,0,0,0}; - //long len = (long)strlen(text); - long len = (long)_tcslen(text); // For UNICODE support - ::DrawText(TmpDC,text,len,&pos,DT_CALCRECT); - pos.right+=pos.bottom; //for italics - - //Preparing Bitmap Info - long width=pos.right; - long height=pos.bottom; - BITMAPINFO bmInfo; - memset(&bmInfo.bmiHeader,0,sizeof(BITMAPINFOHEADER)); - bmInfo.bmiHeader.biSize=sizeof(BITMAPINFOHEADER); - bmInfo.bmiHeader.biWidth=width; - bmInfo.bmiHeader.biHeight=height; - bmInfo.bmiHeader.biPlanes=1; - bmInfo.bmiHeader.biBitCount=24; - BYTE *pbase; //points to the final dib - - HBITMAP TmpBmp=CreateDIBSection(TmpDC,&bmInfo,DIB_RGB_COLORS,(void**)&pbase,0,0); - HGDIOBJ TmpObj=SelectObject(TmpDC,TmpBmp); - memset(pbase,0,height*((((24 * width) + 31) / 32) * 4)); - - ::DrawText(TmpDC,text,len,&pos,0); - - CxImage itext; - itext.CreateFromHBITMAP(TmpBmp); - - y=head.biHeight-y-1; - for (long ix=0;ix -long CxImage::DrawStringEx(HDC hdc, long x, long y, CXTEXTINFO *pTextType, bool bSetAlpha ) -{ - if (!IsValid()) - return -1; - - //get the background - HDC pDC; - if (hdc) pDC=hdc; else pDC = ::GetDC(0); - if (pDC==NULL) return 0; - HDC TmpDC=CreateCompatibleDC(pDC); - if (hdc==NULL) ::ReleaseDC(0, pDC); - if (TmpDC==NULL) return 0; - - //choose the font - HFONT m_Font; - m_Font=CreateFontIndirect( &pTextType->lfont ); - - // get colors in RGBQUAD - RGBQUAD p_forecolor = RGBtoRGBQUAD(pTextType->fcolor); - RGBQUAD p_backcolor = RGBtoRGBQUAD(pTextType->bcolor); - - // check alignment and re-set default if necessary - if ( pTextType->align != DT_CENTER && - pTextType->align != DT_LEFT && - pTextType->align != DT_RIGHT ) - pTextType->align = DT_CENTER; - - // check rounding radius and re-set default if necessary - if ( pTextType->b_round > 50 ) - pTextType->b_round = 10; - - // check opacity and re-set default if necessary - if ( pTextType->b_opacity > 1. || pTextType->b_opacity < .0 ) - pTextType->b_opacity = 0.; - - //select the font in the dc - HFONT pOldFont=NULL; - if (m_Font) - pOldFont = (HFONT)SelectObject(TmpDC,m_Font); - else - pOldFont = (HFONT)SelectObject(TmpDC,GetStockObject(DEFAULT_GUI_FONT)); - - //Set text color - SetTextColor(TmpDC,RGB(255,255,255)); - SetBkColor(TmpDC,RGB(0,0,0)); - SetBkMode(TmpDC,OPAQUE); - //Set text position; - RECT pos = {0,0,0,0}; - - // get text length and number of lines - long i=0, numlines=1, len=(long)_tcsclen(pTextType->text); - while (itext[i++]==13 ) - numlines++; - } - - ::DrawText(TmpDC, pTextType->text, len, &pos, /*DT_EDITCONTROL|DT_EXTERNALLEADING|*/DT_NOPREFIX | DT_CALCRECT ); - - // increase only if it's really italics, and only one line height - if ( pTextType->lfont.lfItalic ) - pos.right += pos.bottom/2/numlines; - - // background frame and rounding radius - int frame = 0, roundR = 0; - if ( pTextType->opaque ) - { - roundR= (int)(pos.bottom/numlines * pTextType->b_round / 100 ) ; - frame = (int)(/*3.5 + */0.29289*roundR ) ; - pos.right += pos.bottom/numlines/3 ; // JUST FOR BEAUTY - } - - //Preparing Bitmap Info - long width=pos.right +frame*2; - long height=pos.bottom +frame*2; - BITMAPINFO bmInfo; - memset(&bmInfo.bmiHeader,0,sizeof(BITMAPINFOHEADER)); - bmInfo.bmiHeader.biSize=sizeof(BITMAPINFOHEADER); - bmInfo.bmiHeader.biWidth=width; - bmInfo.bmiHeader.biHeight=height; - bmInfo.bmiHeader.biPlanes=1; - bmInfo.bmiHeader.biBitCount=24; - BYTE *pbase; //points to the final dib - - HBITMAP TmpBmp=CreateDIBSection(TmpDC,&bmInfo,DIB_RGB_COLORS,(void**)&pbase,0,0); - HGDIOBJ TmpObj=SelectObject(TmpDC,TmpBmp); - memset(pbase,0,height*((((24 * width) + 31) / 32) * 4)); - - ::DrawText(TmpDC,pTextType->text,len, &pos, /*DT_EDITCONTROL|DT_EXTERNALLEADING|*/DT_NOPREFIX| pTextType->align ); - - CxImage itext; - itext.CreateFromHBITMAP(TmpBmp); - y=head.biHeight-y-1; - - itext.Negative(); - - if (pTextType->smooth==FALSE){ - itext.Threshold(128); - } else { - //itext.TextBlur(); - } - - //move the insertion point according to alignment type - // DT_CENTER: cursor points to the center of text rectangle - // DT_RIGHT: cursor points to right side end of text rectangle - // DT_LEFT: cursor points to left end of text rectangle - if ( pTextType->align == DT_CENTER ) - x -= width/2; - else if ( pTextType->align == DT_RIGHT ) - x -= width; - if (x<0) x=0; - - //draw the background first, if it exists - long ix,iy; - if ( pTextType->opaque ) - { - int ixf=0; - for (ix=0;ix=width-roundR-1 ) - ixf = (int)(.5+roundR-sqrt((float)(roundR*roundR-(width-1-ix-roundR)*(width-1-ix-roundR)))); - else - ixf=0; - - for (iy=0;iy height-ixf-1 || iy < ixf )) || - (ix>=width-roundR-1 && ( iy > height-ixf-1 || iy < ixf )) ) - continue; - else - if ( pTextType->b_opacity > 0.0 && pTextType->b_opacity < 1.0 ) - { - RGBQUAD bcolor, pcolor; - // calculate a transition color from original image to background color: - pcolor = GetPixelColor(x+ix,y+iy); - bcolor.rgbBlue = (unsigned char)(pTextType->b_opacity * pcolor.rgbBlue + (1.0-pTextType->b_opacity) * p_backcolor.rgbBlue ); - bcolor.rgbRed = (unsigned char)(pTextType->b_opacity * pcolor.rgbRed + (1.0-pTextType->b_opacity) * p_backcolor.rgbRed ) ; - bcolor.rgbGreen = (unsigned char)(pTextType->b_opacity * pcolor.rgbGreen + (1.0-pTextType->b_opacity) * p_backcolor.rgbGreen ) ; - bcolor.rgbReserved = 0; - SetPixelColor(x+ix,y+iy,bcolor,bSetAlpha); - } - else - SetPixelColor(x+ix,y+iy,p_backcolor,bSetAlpha); - } - } - } - - // draw the text itself - for (ix=0;ixlfont.lfHeight = -36; - txt->lfont.lfCharSet = EASTEUROPE_CHARSET; // just for Central-European users - txt->lfont.lfWeight = FW_NORMAL; - txt->lfont.lfWidth = 0; - txt->lfont.lfEscapement = 0; - txt->lfont.lfOrientation = 0; - txt->lfont.lfItalic = FALSE; - txt->lfont.lfUnderline = FALSE; - txt->lfont.lfStrikeOut = FALSE; - txt->lfont.lfOutPrecision = OUT_DEFAULT_PRECIS; - txt->lfont.lfClipPrecision = CLIP_DEFAULT_PRECIS; - txt->lfont.lfQuality = PROOF_QUALITY; - txt->lfont.lfPitchAndFamily= DEFAULT_PITCH | FF_DONTCARE ; - _stprintf( txt->lfont.lfFaceName, _T("Arial")); //use TCHAR mappings - - // initial colors - txt->fcolor = RGB( 255,255,160 ); // default foreground: light goldyellow - txt->bcolor = RGB( 0, 80,160 ); // default background: light blue - - // background - txt->opaque = TRUE; // text has a non-transparent background; - txt->smooth = TRUE; - txt->b_opacity = 0.0; // default: opaque background - txt->b_outline = 0; // default: no outline (OUTLINE NOT IMPLEMENTED AT THIS TIME) - txt->b_round = 20; // default: rounding radius is 20% of the rectangle height - // the text - _stprintf( txt->text, _T("Sample Text 01234õû")); // text use TCHAR mappings - txt->align = DT_CENTER; - return; -} - -#if CXIMAGE_SUPPORT_LAYERS -//////////////////////////////////////////////////////////////////////////////// -long CxImage::LayerDrawAll(HDC hdc, const RECT& rect, RECT* pClipRect, bool bSmooth) -{ - return LayerDrawAll(hdc, rect.left, rect.top, rect.right - rect.left, rect.bottom - rect.top, pClipRect,bSmooth); -} -//////////////////////////////////////////////////////////////////////////////// -long CxImage::LayerDrawAll(HDC hdc, long x, long y, long cx, long cy, RECT* pClipRect, bool bSmooth) -{ - long n=0; - CxImage* pLayer; - while(pLayer=GetLayer(n++)){ - if (pLayer->Draw(hdc,x+pLayer->info.xOffset,y+pLayer->info.yOffset,cx,cy,pClipRect,bSmooth)==0) - return 0; - if (pLayer->LayerDrawAll(hdc,x+pLayer->info.xOffset,y+pLayer->info.yOffset,cx,cy,pClipRect,bSmooth)==0) - return 0; - } - return 1; -} -#endif //CXIMAGE_SUPPORT_LAYERS - -//////////////////////////////////////////////////////////////////////////////// -#endif //CXIMAGE_SUPPORT_WINDOWS -//////////////////////////////////////////////////////////////////////////////// diff --git a/src/3rdParty/CxImage/CxImage/xiofile.h b/src/3rdParty/CxImage/CxImage/xiofile.h deleted file mode 100644 index 0cb7e1d8e6..0000000000 --- a/src/3rdParty/CxImage/CxImage/xiofile.h +++ /dev/null @@ -1,125 +0,0 @@ -#if !defined(__xiofile_h) -#define __xiofile_h - -#include "xfile.h" -//#include - -class DLL_EXP CxIOFile : public CxFile - { -public: - CxIOFile(FILE* fp = NULL) - { - m_fp = fp; - m_bCloseFile = (bool)(fp==0); - } - - ~CxIOFile() - { - Close(); - } -////////////////////////////////////////////////////////// - bool Open(LPCTSTR filename, LPCTSTR mode) - { - if (m_fp) return false; // Can't re-open without closing first - - m_fp = _tfopen(filename, mode); - if (!m_fp) return false; - - m_bCloseFile = true; - - return true; - } -////////////////////////////////////////////////////////// - virtual bool Close() - { - int iErr = 0; - if ( (m_fp) && (m_bCloseFile) ){ - iErr = fclose(m_fp); - m_fp = NULL; - } - return (bool)(iErr==0); - } -////////////////////////////////////////////////////////// - virtual size_t Read(void *buffer, size_t size, size_t count) - { - if (!m_fp) return 0; - return fread(buffer, size, count, m_fp); - } -////////////////////////////////////////////////////////// - virtual size_t Write(const void *buffer, size_t size, size_t count) - { - if (!m_fp) return 0; - return fwrite(buffer, size, count, m_fp); - } -////////////////////////////////////////////////////////// - virtual bool Seek(long offset, int origin) - { - if (!m_fp) return false; - return (bool)(fseek(m_fp, offset, origin) == 0); - } -////////////////////////////////////////////////////////// - virtual long Tell() - { - if (!m_fp) return 0; - return ftell(m_fp); - } -////////////////////////////////////////////////////////// - virtual long Size() - { - if (!m_fp) return -1; - long pos,size; - pos = ftell(m_fp); - fseek(m_fp, 0, SEEK_END); - size = ftell(m_fp); - fseek(m_fp, pos,SEEK_SET); - return size; - } -////////////////////////////////////////////////////////// - virtual bool Flush() - { - if (!m_fp) return false; - return (bool)(fflush(m_fp) == 0); - } -////////////////////////////////////////////////////////// - virtual bool Eof() - { - if (!m_fp) return true; - return (bool)(feof(m_fp) != 0); - } -////////////////////////////////////////////////////////// - virtual long Error() - { - if (!m_fp) return -1; - return ferror(m_fp); - } -////////////////////////////////////////////////////////// - virtual bool PutC(unsigned char c) - { - if (!m_fp) return false; - return (bool)(fputc(c, m_fp) == c); - } -////////////////////////////////////////////////////////// - virtual long GetC() - { - if (!m_fp) return EOF; - return getc(m_fp); - } -////////////////////////////////////////////////////////// - virtual char * GetS(char *string, int n) - { - if (!m_fp) return NULL; - return fgets(string,n,m_fp); - } -////////////////////////////////////////////////////////// - virtual long Scanf(const char *format, void* output) - { - if (!m_fp) return EOF; - return fscanf(m_fp, format, output); - } -////////////////////////////////////////////////////////// -protected: - FILE *m_fp; - bool m_bCloseFile; - }; - -#endif diff --git a/src/3rdParty/CxImage/CxImage/xmemfile.cpp b/src/3rdParty/CxImage/CxImage/xmemfile.cpp deleted file mode 100644 index 22348b92e8..0000000000 --- a/src/3rdParty/CxImage/CxImage/xmemfile.cpp +++ /dev/null @@ -1,202 +0,0 @@ -#include "xmemfile.h" - -////////////////////////////////////////////////////////// -CxMemFile::CxMemFile(BYTE* pBuffer, DWORD size) -{ - m_pBuffer = pBuffer; - m_Position = 0; - m_Size = m_Edge = size; - m_bFreeOnClose = (bool)(pBuffer==0); -} -////////////////////////////////////////////////////////// -CxMemFile::~CxMemFile() -{ - Close(); -} -////////////////////////////////////////////////////////// -bool CxMemFile::Close() -{ - if ( (m_pBuffer) && (m_bFreeOnClose) ){ - free(m_pBuffer); - m_pBuffer = NULL; - m_Size = 0; - } - return true; -} -////////////////////////////////////////////////////////// -bool CxMemFile::Open() -{ - if (m_pBuffer) return false; // Can't re-open without closing first - - m_Position = m_Size = m_Edge = 0; - m_pBuffer=(BYTE*)malloc(1); - m_bFreeOnClose = true; - - return (m_pBuffer!=0); -} -////////////////////////////////////////////////////////// -BYTE* CxMemFile::GetBuffer(bool bDetachBuffer) -{ - //can only detach, avoid inadvertantly attaching to - // memory that may not be ours [Jason De Arte] - if( bDetachBuffer ) - m_bFreeOnClose = false; - return m_pBuffer; -} -////////////////////////////////////////////////////////// -size_t CxMemFile::Read(void *buffer, size_t size, size_t count) -{ - if (buffer==NULL) return 0; - - if (m_pBuffer==NULL) return 0; - if (m_Position >= (long)m_Size) return 0; - - long nCount = (long)(count*size); - if (nCount == 0) return 0; - - long nRead; - if (m_Position + nCount > (long)m_Size) - nRead = (m_Size - m_Position); - else - nRead = nCount; - - memcpy(buffer, m_pBuffer + m_Position, nRead); - m_Position += nRead; - - return (size_t)(nRead/size); -} -////////////////////////////////////////////////////////// -size_t CxMemFile::Write(const void *buffer, size_t size, size_t count) -{ - if (m_pBuffer==NULL) return 0; - if (buffer==NULL) return 0; - - long nCount = (long)(count*size); - if (nCount == 0) return 0; - - if (m_Position + nCount > m_Edge){ - if (!Alloc(m_Position + nCount)){ - return false; - } - } - - memcpy(m_pBuffer + m_Position, buffer, nCount); - - m_Position += nCount; - - if (m_Position > (long)m_Size) m_Size = m_Position; - - return count; -} -////////////////////////////////////////////////////////// -bool CxMemFile::Seek(long offset, int origin) -{ - if (m_pBuffer==NULL) return false; - long lNewPos = m_Position; - - if (origin == SEEK_SET) lNewPos = offset; - else if (origin == SEEK_CUR) lNewPos += offset; - else if (origin == SEEK_END) lNewPos = m_Size + offset; - else return false; - - if (lNewPos < 0) lNewPos = 0; - - m_Position = lNewPos; - return true; -} -////////////////////////////////////////////////////////// -long CxMemFile::Tell() -{ - if (m_pBuffer==NULL) return -1; - return m_Position; -} -////////////////////////////////////////////////////////// -long CxMemFile::Size() -{ - if (m_pBuffer==NULL) return -1; - return m_Size; -} -////////////////////////////////////////////////////////// -bool CxMemFile::Flush() -{ - if (m_pBuffer==NULL) return false; - return true; -} -////////////////////////////////////////////////////////// -bool CxMemFile::Eof() -{ - if (m_pBuffer==NULL) return true; - return (m_Position >= (long)m_Size); -} -////////////////////////////////////////////////////////// -long CxMemFile::Error() -{ - if (m_pBuffer==NULL) return -1; - return (m_Position > (long)m_Size); -} -////////////////////////////////////////////////////////// -bool CxMemFile::PutC(unsigned char c) -{ - if (m_pBuffer==NULL) return false; - - if (m_Position >= m_Edge){ - if (!Alloc(m_Position + 1)){ - return false; - } - } - - m_pBuffer[m_Position++] = c; - - if (m_Position > (long)m_Size) m_Size = m_Position; - - return true; -} -////////////////////////////////////////////////////////// -long CxMemFile::GetC() -{ - if (Eof()) return EOF; - return *(BYTE*)((BYTE*)m_pBuffer + m_Position++); -} -////////////////////////////////////////////////////////// -char * CxMemFile::GetS(char *string, int n) -{ - n--; - long c,i=0; - while (i (DWORD)m_Edge) - { - // find new buffer size - DWORD dwNewBufferSize = (DWORD)(((dwNewLen>>16)+1)<<16); - - // allocate new buffer - if (m_pBuffer == NULL) m_pBuffer = (BYTE*)malloc(dwNewBufferSize); - else m_pBuffer = (BYTE*)realloc(m_pBuffer, dwNewBufferSize); - // I own this buffer now (caller knows nothing about it) - m_bFreeOnClose = true; - - m_Edge = dwNewBufferSize; - } - return (m_pBuffer!=0); -} -////////////////////////////////////////////////////////// -void CxMemFile::Free() -{ - Close(); -} -////////////////////////////////////////////////////////// diff --git a/src/3rdParty/CxImage/CxImage/xmemfile.h b/src/3rdParty/CxImage/CxImage/xmemfile.h deleted file mode 100644 index ac4c412007..0000000000 --- a/src/3rdParty/CxImage/CxImage/xmemfile.h +++ /dev/null @@ -1,41 +0,0 @@ -#if !defined(__xmemfile_h) -#define __xmemfile_h - -#include "xfile.h" - -////////////////////////////////////////////////////////// -class DLL_EXP CxMemFile : public CxFile -{ -public: - CxMemFile(BYTE* pBuffer = NULL, DWORD size = 0); - ~CxMemFile(); - - bool Open(); - BYTE* GetBuffer(bool bDetachBuffer = true); - - virtual bool Close(); - virtual size_t Read(void *buffer, size_t size, size_t count); - virtual size_t Write(const void *buffer, size_t size, size_t count); - virtual bool Seek(long offset, int origin); - virtual long Tell(); - virtual long Size(); - virtual bool Flush(); - virtual bool Eof(); - virtual long Error(); - virtual bool PutC(unsigned char c); - virtual long GetC(); - virtual char * GetS(char *string, int n); - virtual long Scanf(const char *format, void* output); - -protected: - bool Alloc(DWORD nBytes); - void Free(); - - BYTE* m_pBuffer; - DWORD m_Size; - bool m_bFreeOnClose; - long m_Position; //current position - long m_Edge; //buffer size -}; - -#endif diff --git a/src/3rdParty/CxImage/CxImgLib.dsw b/src/3rdParty/CxImage/CxImgLib.dsw deleted file mode 100644 index 75da97b276..0000000000 --- a/src/3rdParty/CxImage/CxImgLib.dsw +++ /dev/null @@ -1,266 +0,0 @@ -Microsoft Developer Studio Workspace File, Format Version 6.00 -# WARNING: DO NOT EDIT OR DELETE THIS WORKSPACE FILE! - -############################################################################### - -Project: "CxImage"=".\cximage\cximage.dsp" - Package Owner=<4> - -Package=<5> -{{{ -}}} - -Package=<4> -{{{ -}}} - -############################################################################### - -Project: "CxImageCrtDll"=".\CxImage\CxImageDLL\CxImageCrtDll.dsp" - Package Owner=<4> - -Package=<5> -{{{ -}}} - -Package=<4> -{{{ - Begin Project Dependency - Project_Dep_Name j2k - End Project Dependency - Begin Project Dependency - Project_Dep_Name jbig - End Project Dependency - Begin Project Dependency - Project_Dep_Name jpeg - End Project Dependency - Begin Project Dependency - Project_Dep_Name png - End Project Dependency - Begin Project Dependency - Project_Dep_Name tiff - End Project Dependency - Begin Project Dependency - Project_Dep_Name zlib - End Project Dependency - Begin Project Dependency - Project_Dep_Name jasper - End Project Dependency - Begin Project Dependency - Project_Dep_Name mng - End Project Dependency - Begin Project Dependency - Project_Dep_Name libdcr - End Project Dependency -}}} - -############################################################################### - -Project: "CxImageMfcDll"=".\CxImage\CxImageDLL\cximagemfcdll.dsp" - Package Owner=<4> - -Package=<5> -{{{ -}}} - -Package=<4> -{{{ - Begin Project Dependency - Project_Dep_Name j2k - End Project Dependency - Begin Project Dependency - Project_Dep_Name jbig - End Project Dependency - Begin Project Dependency - Project_Dep_Name jpeg - End Project Dependency - Begin Project Dependency - Project_Dep_Name png - End Project Dependency - Begin Project Dependency - Project_Dep_Name tiff - End Project Dependency - Begin Project Dependency - Project_Dep_Name zlib - End Project Dependency - Begin Project Dependency - Project_Dep_Name jasper - End Project Dependency - Begin Project Dependency - Project_Dep_Name mng - End Project Dependency - Begin Project Dependency - Project_Dep_Name libdcr - End Project Dependency -}}} - -############################################################################### - -Project: "demo"=".\demo\demo.dsp" - Package Owner=<4> - -Package=<5> -{{{ -}}} - -Package=<4> -{{{ - Begin Project Dependency - Project_Dep_Name CxImage - End Project Dependency - Begin Project Dependency - Project_Dep_Name Jpeg - End Project Dependency - Begin Project Dependency - Project_Dep_Name png - End Project Dependency - Begin Project Dependency - Project_Dep_Name Tiff - End Project Dependency - Begin Project Dependency - Project_Dep_Name zlib - End Project Dependency - Begin Project Dependency - Project_Dep_Name mng - End Project Dependency - Begin Project Dependency - Project_Dep_Name j2000 - End Project Dependency - Begin Project Dependency - Project_Dep_Name jbig - End Project Dependency - Begin Project Dependency - Project_Dep_Name cximagedll - End Project Dependency - Begin Project Dependency - Project_Dep_Name j2k - End Project Dependency - Begin Project Dependency - Project_Dep_Name jasper - End Project Dependency - Begin Project Dependency - Project_Dep_Name libdcr - End Project Dependency -}}} - -############################################################################### - -Project: "demoDll"=".\demo\demoDLL.dsp" - Package Owner=<4> - -Package=<5> -{{{ -}}} - -Package=<4> -{{{ - Begin Project Dependency - Project_Dep_Name CxImageCrtDll - End Project Dependency -}}} - -############################################################################### - -Project: "jasper"=".\jasper\jasper.dsp" - Package Owner=<4> - -Package=<5> -{{{ -}}} - -Package=<4> -{{{ -}}} - -############################################################################### - -Project: "jbig"=".\jbig\jbig.dsp" - Package Owner=<4> - -Package=<5> -{{{ -}}} - -Package=<4> -{{{ -}}} - -############################################################################### - -Project: "jpeg"=".\jpeg\Jpeg.dsp" - Package Owner=<4> - -Package=<5> -{{{ -}}} - -Package=<4> -{{{ -}}} - -############################################################################### - -Project: "libdcr"=".\raw\libdcr.dsp" - Package Owner=<4> - -Package=<5> -{{{ -}}} - -Package=<4> -{{{ -}}} - -############################################################################### - -Project: "mng"=".\mng\mng.dsp" - Package Owner=<4> - -Package=<5> -{{{ -}}} - -Package=<4> -{{{ -}}} - -############################################################################### - -Project: "png"=".\png\png.dsp" - Package Owner=<4> - -Package=<5> -{{{ -}}} - -Package=<4> -{{{ -}}} - -############################################################################### - -Project: "tiff"=".\tiff\Tiff.dsp" - Package Owner=<4> - -Package=<5> -{{{ -}}} - -Package=<4> -{{{ -}}} - -############################################################################### - -Project: "zlib"=".\zlib\zlib.dsp" - Package Owner=<4> - -Package=<5> -{{{ -}}} - -Package=<4> -{{{ -}}} - -############################################################################### - -Global: - -Package=<5> -{{{ -}}} - -Package=<3> -{{{ -}}} - -############################################################################### - diff --git a/src/3rdParty/CxImage/CxImgLib.sln b/src/3rdParty/CxImage/CxImgLib.sln deleted file mode 100644 index ae9a623c9c..0000000000 --- a/src/3rdParty/CxImage/CxImgLib.sln +++ /dev/null @@ -1,46 +0,0 @@ - -Microsoft Visual Studio Solution File, Format Version 9.00 -# Visual C++ Express 2005 -Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "CxImage", "cximage\cximage.vcproj", "{02D7821F-046E-4114-8981-2E7B672A578F}" -EndProject -Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "jpeg", "jpeg\Jpeg.vcproj", "{8B8F1DE6-ADB6-40A2-B9D2-7481BD13583B}" -EndProject -Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "zlib", "zlib\zlib.vcproj", "{BCD0DF12-7BE3-4F35-AD6D-A43F89781758}" -EndProject -Global - GlobalSection(SolutionConfigurationPlatforms) = preSolution - Debug|Win32 = Debug|Win32 - Release|Win32 = Release|Win32 - Unicode Debug|Win32 = Unicode Debug|Win32 - Unicode Release|Win32 = Unicode Release|Win32 - EndGlobalSection - GlobalSection(ProjectConfigurationPlatforms) = postSolution - {02D7821F-046E-4114-8981-2E7B672A578F}.Debug|Win32.ActiveCfg = Debug|Win32 - {02D7821F-046E-4114-8981-2E7B672A578F}.Debug|Win32.Build.0 = Debug|Win32 - {02D7821F-046E-4114-8981-2E7B672A578F}.Release|Win32.ActiveCfg = Release|Win32 - {02D7821F-046E-4114-8981-2E7B672A578F}.Release|Win32.Build.0 = Release|Win32 - {02D7821F-046E-4114-8981-2E7B672A578F}.Unicode Debug|Win32.ActiveCfg = Unicode Debug|Win32 - {02D7821F-046E-4114-8981-2E7B672A578F}.Unicode Debug|Win32.Build.0 = Unicode Debug|Win32 - {02D7821F-046E-4114-8981-2E7B672A578F}.Unicode Release|Win32.ActiveCfg = Unicode Release|Win32 - {02D7821F-046E-4114-8981-2E7B672A578F}.Unicode Release|Win32.Build.0 = Unicode Release|Win32 - {8B8F1DE6-ADB6-40A2-B9D2-7481BD13583B}.Debug|Win32.ActiveCfg = Debug|Win32 - {8B8F1DE6-ADB6-40A2-B9D2-7481BD13583B}.Debug|Win32.Build.0 = Debug|Win32 - {8B8F1DE6-ADB6-40A2-B9D2-7481BD13583B}.Release|Win32.ActiveCfg = Release|Win32 - {8B8F1DE6-ADB6-40A2-B9D2-7481BD13583B}.Release|Win32.Build.0 = Release|Win32 - {8B8F1DE6-ADB6-40A2-B9D2-7481BD13583B}.Unicode Debug|Win32.ActiveCfg = Unicode Debug|Win32 - {8B8F1DE6-ADB6-40A2-B9D2-7481BD13583B}.Unicode Debug|Win32.Build.0 = Unicode Debug|Win32 - {8B8F1DE6-ADB6-40A2-B9D2-7481BD13583B}.Unicode Release|Win32.ActiveCfg = Unicode Release|Win32 - {8B8F1DE6-ADB6-40A2-B9D2-7481BD13583B}.Unicode Release|Win32.Build.0 = Unicode Release|Win32 - {BCD0DF12-7BE3-4F35-AD6D-A43F89781758}.Debug|Win32.ActiveCfg = Debug|Win32 - {BCD0DF12-7BE3-4F35-AD6D-A43F89781758}.Debug|Win32.Build.0 = Debug|Win32 - {BCD0DF12-7BE3-4F35-AD6D-A43F89781758}.Release|Win32.ActiveCfg = Release|Win32 - {BCD0DF12-7BE3-4F35-AD6D-A43F89781758}.Release|Win32.Build.0 = Release|Win32 - {BCD0DF12-7BE3-4F35-AD6D-A43F89781758}.Unicode Debug|Win32.ActiveCfg = Unicode Debug|Win32 - {BCD0DF12-7BE3-4F35-AD6D-A43F89781758}.Unicode Debug|Win32.Build.0 = Unicode Debug|Win32 - {BCD0DF12-7BE3-4F35-AD6D-A43F89781758}.Unicode Release|Win32.ActiveCfg = Unicode Release|Win32 - {BCD0DF12-7BE3-4F35-AD6D-A43F89781758}.Unicode Release|Win32.Build.0 = Unicode Release|Win32 - EndGlobalSection - GlobalSection(SolutionProperties) = preSolution - HideSolutionNode = FALSE - EndGlobalSection -EndGlobal diff --git a/src/3rdParty/CxImage/README b/src/3rdParty/CxImage/README deleted file mode 100644 index 30dd596057..0000000000 --- a/src/3rdParty/CxImage/README +++ /dev/null @@ -1,13 +0,0 @@ -Yanked from FreeCAD forum posts by wmayer 17 July and 22 August 2014 -http://forum.freecadweb.org/viewtopic.php?f=10&t=7054 -http://forum.freecadweb.org/viewtopic.php?f=17&t=7432 - -The CxImage is only used for a Windows thumbnailer. The utility -"ThumbnailProvider" is a DLL which can be registered to Windows as a so called -shell extension. This utility is able to create a preview image of an FCStd -project file and CxImage is needed to convert the data into a format that -Windows expects. - -The format Windows accepts is a BITMAP handle for which Qt could also be used. -But this requires a dependency of two rather heavy DLLs (QtCore, QtGui) and -with a statically linked CxImage we don't have this problem. diff --git a/src/3rdParty/CxImage/png/ANNOUNCE b/src/3rdParty/CxImage/png/ANNOUNCE deleted file mode 100644 index c49c7b6bd6..0000000000 --- a/src/3rdParty/CxImage/png/ANNOUNCE +++ /dev/null @@ -1,62 +0,0 @@ - -Libpng 1.2.24 - December 14, 2007 - -This is a public release of libpng, intended for use in production codes. - -Files available for download: - -Source files with LF line endings (for Unix/Linux) and with a -"configure" script - - libpng-1.2.24.tar.gz - libpng-1.2.24.tar.bz2 - -Source files with LF line endings (for Unix/Linux) without the -"configure" script - - libpng-1.2.24-no-config.tar.gz - libpng-1.2.24-no-config.tar.bz2 - -Source files with CRLF line endings (for Windows), without the -"configure" script - - lpng1224.zip - lpng1224.tar.bz2 - -Project files - - libpng-1.2.24-project-netware.zip - libpng-1.2.24-project-wince.zip - -Other information: - - libpng-1.2.24-README.txt - libpng-1.2.24-KNOWNBUGS.txt - libpng-1.2.24-LICENSE.txt - libpng-1.2.24-Y2K-compliance.txt - -Changes since the last public release (1.2.23): - -version 1.2.24 [December 14, 2007] - - Moved misplaced test for malloc failure in png_set_sPLT(). This bug was - introduced in libpng-1.2.20. - Ifdef out avg_row etc from png.h and pngwrite.c when PNG_NO_WRITE_FILTER - Do not use png_ptr->free_fn and png_ptr->mem_fn in png_destroy_read_struct() - when png_ptr is NULL (Marshall Clow). - Updated handling of symbol prefixes in Makefile.am and configure.ac (Mike - Frysinger). - Removed a useless test and fixed incorrect test in png_set_cHRM_fixed() - (David Hill). - Make sure not to redefine _BSD_SOURCE in pngconf.h - Revised gather.sh and makefile.std in contrib/pngminim to avoid compiling - unused files. - - - -Send comments/corrections/commendations to png-mng-implement at lists.sf.net -(subscription required; visit -https://lists.sourceforge.net/lists/listinfo/png-mng-implement -to subscribe) or to glennrp at users.sourceforge.net - -Glenn R-P diff --git a/src/3rdParty/CxImage/png/CHANGES b/src/3rdParty/CxImage/png/CHANGES deleted file mode 100644 index a6e5856aa0..0000000000 --- a/src/3rdParty/CxImage/png/CHANGES +++ /dev/null @@ -1,2041 +0,0 @@ - -CHANGES - changes for libpng - -version 0.2 - added reader into png.h - fixed small problems in stub file - -version 0.3 - added pull reader - split up pngwrite.c to several files - added pnglib.txt - added example.c - cleaned up writer, adding a few new transformations - fixed some bugs in writer - interfaced with zlib 0.5 - added K&R support - added check for 64 KB blocks for 16 bit machines - -version 0.4 - cleaned up code and commented code - simplified time handling into png_time - created png_color_16 and png_color_8 to handle color needs - cleaned up color type defines - fixed various bugs - made various names more consistent - interfaced with zlib 0.71 - cleaned up zTXt reader and writer (using zlib's Reset functions) - split transformations into pngrtran.c and pngwtran.c - -version 0.5 - interfaced with zlib 0.8 - fixed many reading and writing bugs - saved using 3 spaces instead of tabs - -version 0.6 - added png_large_malloc() and png_large_free() - added png_size_t - cleaned up some compiler warnings - added png_start_read_image() - -version 0.7 - cleaned up lots of bugs - finished dithering and other stuff - added test program - changed name from pnglib to libpng - -version 0.71 [June, 1995] - changed pngtest.png for zlib 0.93 - fixed error in libpng.txt and example.c - -version 0.8 - cleaned up some bugs - added png_set_filler() - split up pngstub.c into pngmem.c, pngio.c, and pngerror.c - added #define's to remove unwanted code - moved png_info_init() to png.c - added old_size into png_realloc() - added functions to manually set filtering and compression info - changed compression parameters based on image type - optimized filter selection code - added version info - changed external functions passing floats to doubles (k&r problems?) - put all the configurable stuff in pngconf.h - enabled png_set_shift to work with paletted images on read - added png_read_update_info() - updates info structure with - transformations - -version 0.81 [August, 1995] - incorporated Tim Wegner's medium model code (thanks, Tim) - -version 0.82 [September, 1995] - [unspecified changes] - -version 0.85 [December, 1995] - added more medium model code (almost everything's a far) - added i/o, error, and memory callback functions - fixed some bugs (16 bit, 4 bit interlaced, etc.) - added first run progressive reader (barely tested) - -version 0.86 [January, 1996] - fixed bugs - improved documentation - -version 0.87 [January, 1996] - fixed medium model bugs - fixed other bugs introduced in 0.85 and 0.86 - added some minor documentation - -version 0.88 [January, 1996] - fixed progressive bugs - replaced tabs with spaces - cleaned up documentation - added callbacks for read/write and warning/error functions - -version 0.89 [July, 1996] - added new initialization API to make libpng work better with shared libs - we now have png_create_read_struct(), png_create_write_struct(), - png_create_info_struct(), png_destroy_read_struct(), and - png_destroy_write_struct() instead of the separate calls to - malloc and png_read_init(), png_info_init(), and png_write_init() - changed warning/error callback functions to fix bug - this means you - should use the new initialization API if you were using the old - png_set_message_fn() calls, and that the old API no longer exists - so that people are aware that they need to change their code - changed filter selection API to allow selection of multiple filters - since it didn't work in previous versions of libpng anyways - optimized filter selection code - fixed png_set_background() to allow using an arbitrary RGB color for - paletted images - fixed gamma and background correction for paletted images, so - png_correct_palette is not needed unless you are correcting an - external palette (you will need to #define PNG_CORRECT_PALETTE_SUPPORTED - in pngconf.h) - if nobody uses this, it may disappear in the future. - fixed bug with Borland 64K memory allocation (Alexander Lehmann) - fixed bug in interlace handling (Smarasderagd, I think) - added more error checking for writing and image to reduce invalid files - separated read and write functions so that they won't both be linked - into a binary when only reading or writing functionality is used - new pngtest image also has interlacing and zTXt - updated documentation to reflect new API - -version 0.90 [January, 1997] - made CRC errors/warnings on critical and ancillary chunks configurable - libpng will use the zlib CRC routines by (compile-time) default - changed DOS small/medium model memory support - needs zlib 1.04 (Tim Wegner) - added external C++ wrapper statements to png.h (Gilles Dauphin) - allow PNG file to be read when some or all of file signature has already - been read from the beginning of the stream. ****This affects the size - of info_struct and invalidates all programs that use a shared libpng**** - fixed png_filler() declarations - fixed? background color conversions - fixed order of error function pointers to match documentation - current chunk name is now available in png_struct to reduce the number - of nearly identical error messages (will simplify multi-lingual - support when available) - try to get ready for unknown-chunk callback functions: - - previously read critical chunks are flagged, so the chunk handling - routines can determine if the chunk is in the right place - - all chunk handling routines have the same prototypes, so we will - be able to handle all chunks via a callback mechanism - try to fix Linux "setjmp" buffer size problems - removed png_large_malloc, png_large_free, and png_realloc functions. - -version 0.95 [March, 1997] - fixed bug in pngwutil.c allocating "up_row" twice and "avg_row" never - fixed bug in PNG file signature compares when start != 0 - changed parameter type of png_set_filler(...filler...) from png_byte - to png_uint_32 - added test for MACOS to ensure that both math.h and fp.h are not #included - added macros for libpng to be compiled as a Windows DLL (Andreas Kupries) - added "packswap" transformation, which changes the endianness of - packed-pixel bytes (Kevin Bracey) - added "strip_alpha" transformation, which removes the alpha channel of - input images without using it (not necessarily a good idea) - added "swap_alpha" transformation, which puts the alpha channel in front - of the color bytes instead of after - removed all implicit variable tests which assume NULL == 0 (I think) - changed several variables to "png_size_t" to show 16/32-bit limitations - added new pCAL chunk read/write support - added experimental filter selection weighting (Greg Roelofs) - removed old png_set_rgbx() and png_set_xrgb() functions that have been - obsolete for about 2 years now (use png_set_filler() instead) - added macros to read 16- and 32-bit ints directly from buffer, to be - used only on those systems that support it (namely PowerPC and 680x0) - With some testing, this may become the default for MACOS/PPC systems. - only calculate CRC on data if we are going to use it - added macros for zTXt compression type PNG_zTXt_COMPRESSION_??? - added macros for simple libpng debugging output selectable at compile time - removed PNG_READ_END_MODE in progressive reader (Smarasderagd) - more description of info_struct in libpng.txt and png.h - more instructions in example.c - more chunk types tested in pngtest.c - renamed pngrcb.c to pngset.c, and all png_read_ functions to be - png_set_. We now have corresponding png_get_ - functions in pngget.c to get information in info_ptr. This isolates - the application from the internal organization of png_info_struct - (good for shared library implementations). - -version 0.96 [May, 1997] - fixed serious bug with < 8bpp images introduced in 0.95 - fixed 256-color transparency bug (Greg Roelofs) - fixed up documentation (Greg Roelofs, Laszlo Nyul) - fixed "error" in pngconf.h for Linux setjmp() behaviour - fixed DOS medium model support (Tim Wegner) - fixed png_check_keyword() for case with error in static string text - added read of CRC after IEND chunk for embedded PNGs (Laszlo Nyul) - added typecasts to quiet compiler errors - added more debugging info - -version 0.97 [January, 1998] - removed PNG_USE_OWN_CRC capability - relocated png_set_crc_action from pngrutil.c to pngrtran.c - fixed typecasts of "new_key", etc. (Andreas Dilger) - added RFC 1152 [sic] date support - fixed bug in gamma handling of 4-bit grayscale - added 2-bit grayscale gamma handling (Glenn R-P) - added more typecasts. 65536L becomes (png_uint_32)65536L, etc. (Glenn R-P) - minor corrections in libpng.txt - added simple sRGB support (Glenn R-P) - easier conditional compiling, e.g. define PNG_READ/WRITE_NOT_FULLY_SUPPORTED; - all configurable options can be selected from command-line instead - of having to edit pngconf.h (Glenn R-P) - fixed memory leak in pngwrite.c (free info_ptr->text) (Glenn R-P) - added more conditions for png_do_background, to avoid changing - black pixels to background when a background is supplied and - no pixels are transparent - repaired PNG_NO_STDIO behaviour - tested NODIV support and made it default behaviour (Greg Roelofs) - added "-m" option and PNGTEST_DEBUG_MEMORY to pngtest (John Bowler) - regularized version numbering scheme and bumped shared-library major - version number to 2 to avoid problems with libpng 0.89 apps (Greg Roelofs) - -version 0.98 [January, 1998] - cleaned up some typos in libpng.txt and in code documentation - fixed memory leaks in pCAL chunk processing (Glenn R-P and John Bowler) - cosmetic change "display_gamma" to "screen_gamma" in pngrtran.c - changed recommendation about file_gamma for PC images to .51 from .45, - in example.c and libpng.txt, added comments to distinguish between - screen_gamma, viewing_gamma, and display_gamma. - changed all references to RFC1152 to read RFC1123 and changed the - PNG_TIME_RFC1152_SUPPORTED macro to PNG_TIME_RFC1123_SUPPORTED - added png_invert_alpha capability (Glenn R-P -- suggestion by Jon Vincent) - changed srgb_intent from png_byte to int to avoid compiler bugs - -version 0.99 [January 30, 1998] - free info_ptr->text instead of end_info_ptr->text in pngread.c (John Bowler) - fixed a longstanding "packswap" bug in pngtrans.c - fixed some inconsistencies in pngconf.h that prevented compiling with - PNG_READ_GAMMA_SUPPORTED and PNG_READ_hIST_SUPPORTED undefined - fixed some typos and made other minor rearrangement of libpng.txt (Andreas) - changed recommendation about file_gamma for PC images to .50 from .51 in - example.c and libpng.txt, and changed file_gamma for sRGB images to .45 - added a number of functions to access information from the png structure - png_get_image_height(), etc. (Glenn R-P, suggestion by Brad Pettit) - added TARGET_MACOS similar to zlib-1.0.8 - define PNG_ALWAYS_EXTERN when __MWERKS__ && WIN32 are defined - added type casting to all png_malloc() function calls -version 0.99a [January 31, 1998] - Added type casts and parentheses to all returns that return a value.(Tim W.) -version 0.99b [February 4, 1998] - Added type cast png_uint_32 on malloc function calls where needed. - Changed type of num_hist from png_uint_32 to int (same as num_palette). - Added checks for rowbytes overflow, in case png_size_t is less than 32 bits. - Renamed makefile.elf to makefile.lnx. -version 0.99c [February 7, 1998] - More type casting. Removed erroneous overflow test in pngmem.c. - Added png_buffered_memcpy() and png_buffered_memset(), apply them to rowbytes. - Added UNIX manual pages libpng.3 (incorporating libpng.txt) and png.5. -version 0.99d [February 11, 1998] - Renamed "far_to_near()" "png_far_to_near()" - Revised libpng.3 - Version 99c "buffered" operations didn't work as intended. Replaced them - with png_memcpy_check() and png_memset_check(). - Added many "if (png_ptr == NULL) return" to quell compiler warnings about - unused png_ptr, mostly in pngget.c and pngset.c. - Check for overlength tRNS chunk present when indexed-color PLTE is read. - Cleaned up spelling errors in libpng.3/libpng.txt - Corrected a problem with png_get_tRNS() which returned undefined trans array -version 0.99e [February 28, 1998] - Corrected png_get_tRNS() again. - Add parentheses for easier reading of pngget.c, fixed "||" should be "&&". - Touched up example.c to make more of it compileable, although the entire - file still can't be compiled (Willem van Schaik) - Fixed a bug in png_do_shift() (Bryan Tsai) - Added a space in png.h prototype for png_write_chunk_start() - Replaced pngtest.png with one created with zlib 1.1.1 - Changed pngtest to report PASS even when file size is different (Jean-loup G.) - Corrected some logic errors in png_do_invert_alpha() (Chris Patterson) -version 0.99f [March 5, 1998] - Corrected a bug in pngpread() introduced in version 99c (Kevin Bracey) - Moved makefiles into a "scripts" directory, and added INSTALL instruction file - Added makefile.os2 and pngos2.def (A. Zabolotny) and makefile.s2x (W. Sebok) - Added pointers to "note on libpng versions" in makefile.lnx and README - Added row callback feature when reading and writing nonprogressive rows - and added a test of this feature in pngtest.c - Added user transform callbacks, with test of the feature in pngtest.c -version 0.99g [March 6, 1998, morning] - Minor changes to pngtest.c to suppress compiler warnings. - Removed "beta" language from documentation. -version 0.99h [March 6, 1998, evening] - Minor changes to previous minor changes to pngtest.c - Changed PNG_READ_NOT_FULLY_SUPPORTED to PNG_READ_TRANSFORMS_NOT_SUPPORTED - and added PNG_PROGRESSIVE_READ_NOT_SUPPORTED macro - Added user transform capability - -version 1.00 [March 7, 1998] - Changed several typedefs in pngrutil.c - Added makefile.wat (Pawel Mrochen), updated makefile.tc3 (Willem van Schaik) - replaced "while(1)" with "for(;;)" - added PNGARG() to prototypes in pngtest.c and removed some prototypes - updated some of the makefiles (Tom Lane) - changed some typedefs (s_start, etc.) in pngrutil.c - fixed dimensions of "short_months" array in pngwrite.c - Replaced ansi2knr.c with the one from jpeg-v6 - -version 1.0.0 [March 8, 1998] - Changed name from 1.00 to 1.0.0 (Adam Costello) - Added smakefile.ppc (with SCOPTIONS.ppc) for Amiga PPC (Andreas Kleinert) -version 1.0.0a [March 9, 1998] - Fixed three bugs in pngrtran.c to make gamma+background handling consistent - (Greg Roelofs) - Changed format of the PNG_LIBPNG_VER integer to xyyzz instead of xyz - for major, minor, and bugfix releases. This is 10001. (Adam Costello, - Tom Lane) - Make months range from 1-12 in png_convert_to_rfc1123 -version 1.0.0b [March 13, 1998] - Quieted compiler complaints about two empty "for" loops in pngrutil.c - Minor changes to makefile.s2x - Removed #ifdef/#endif around a png_free() in pngread.c - -version 1.0.1 [March 14, 1998] - Changed makefile.s2x to reduce security risk of using a relative pathname - Fixed some typos in the documentation (Greg). - Fixed a problem with value of "channels" returned by png_read_update_info() -version 1.0.1a [April 21, 1998] - Optimized Paeth calculations by replacing abs() function calls with intrinsics - plus other loop optimizations. Improves avg decoding speed by about 20%. - Commented out i386istic "align" compiler flags in makefile.lnx. - Reduced the default warning level in some makefiles, to make them consistent. - Removed references to IJG and JPEG in the ansi2knr.c copyright statement. - Fixed a bug in png_do_strip_filler with XXRRGGBB => RRGGBB transformation. - Added grayscale and 16-bit capability to png_do_read_filler(). - Fixed a bug in pngset.c, introduced in version 0.99c, that sets rowbytes - too large when writing an image with bit_depth < 8 (Bob Dellaca). - Corrected some bugs in the experimental weighted filtering heuristics. - Moved a misplaced pngrutil code block that truncates tRNS if it has more - than num_palette entries -- test was done before num_palette was defined. - Fixed a png_convert_to_rfc1123() bug that converts day 31 to 0 (Steve Eddins). - Changed compiler flags in makefile.wat for better optimization (Pawel Mrochen). -version 1.0.1b [May 2, 1998] - Relocated png_do_gray_to_rgb() within png_do_read_transformations() (Greg). - Relocated the png_composite macros from pngrtran.c to png.h (Greg). - Added makefile.sco (contributed by Mike Hopkirk). - Fixed two bugs (missing definitions of "istop") introduced in libpng-1.0.1a. - Fixed a bug in pngrtran.c that would set channels=5 under some circumstances. - More work on the Paeth-filtering, achieving imperceptible speedup (A Kleinert). - More work on loop optimization which may help when compiled with C++ compilers. - Added warnings when people try to use transforms they've defined out. - Collapsed 4 "i" and "c" loops into single "i" loops in pngrtran and pngwtran. - Revised paragraph about png_set_expand() in libpng.txt and libpng.3 (Greg) -version 1.0.1c [May 11, 1998] - Fixed a bug in pngrtran.c (introduced in libpng-1.0.1a) where the masks for - filler bytes should have been 0xff instead of 0xf. - Added max_pixel_depth=32 in pngrutil.c when using FILLER with palette images. - Moved PNG_WRITE_WEIGHTED_FILTER_SUPPORTED and PNG_WRITE_FLUSH_SUPPORTED - out of the PNG_WRITE_TRANSFORMS_NOT_SUPPORTED block of pngconf.h - Added "PNG_NO_WRITE_TRANSFORMS" etc., as alternatives for *_NOT_SUPPORTED, - for consistency, in pngconf.h - Added individual "ifndef PNG_NO_[CAPABILITY]" in pngconf.h to make it easier - to remove unwanted capabilities via the compile line - Made some corrections to grammar (which, it's) in documentation (Greg). - Corrected example.c, use of row_pointers in png_write_image(). -version 1.0.1d [May 24, 1998] - Corrected several statements that used side effects illegally in pngrutil.c - and pngtrans.c, that were introduced in version 1.0.1b - Revised png_read_rows() to avoid repeated if-testing for NULL (A Kleinert) - More corrections to example.c, use of row_pointers in png_write_image() - and png_read_rows(). - Added pngdll.mak and pngdef.pas to scripts directory, contributed by - Bob Dellaca, to make a png32bd.dll with Borland C++ 4.5 - Fixed error in example.c with png_set_text: num_text is 3, not 2 (Guido V.) - Changed several loops from count-down to count-up, for consistency. -version 1.0.1e [June 6, 1998] - Revised libpng.txt and libpng.3 description of png_set_read|write_fn(), and - added warnings when people try to set png_read_fn and png_write_fn in - the same structure. - Added a test such that png_do_gamma will be done when num_trans==0 - for truecolor images that have defined a background. This corrects an - error that was introduced in libpng-0.90 that can cause gamma processing - to be skipped. - Added tests in png.h to include "trans" and "trans_values" in structures - when PNG_READ_BACKGROUND_SUPPORTED or PNG_READ_EXPAND_SUPPORTED is defined. - Add png_free(png_ptr->time_buffer) in png_destroy_read_struct() - Moved png_convert_to_rfc_1123() from pngwrite.c to png.c - Added capability for user-provided malloc_fn() and free_fn() functions, - and revised pngtest.c to demonstrate their use, replacing the - PNGTEST_DEBUG_MEM feature. - Added makefile.w32, for Microsoft C++ 4.0 and later (Tim Wegner). - -version 1.0.2 [June 14, 1998] - Fixed two bugs in makefile.bor . -version 1.0.2a [December 30, 1998] - Replaced and extended code that was removed from png_set_filler() in 1.0.1a. - Fixed a bug in png_do_filler() that made it fail to write filler bytes in - the left-most pixel of each row (Kevin Bracey). - Changed "static pngcharp tIME_string" to "static char tIME_string[30]" - in pngtest.c (Duncan Simpson). - Fixed a bug in pngtest.c that caused pngtest to try to write a tIME chunk - even when no tIME chunk was present in the source file. - Fixed a problem in pngrutil.c: gray_to_rgb didn't always work with 16-bit. - Fixed a problem in png_read_push_finish_row(), which would not skip some - passes that it should skip, for images that are less than 3 pixels high. - Interchanged the order of calls to png_do_swap() and png_do_shift() - in pngwtran.c (John Cromer). - Added #ifdef PNG_DEBUG/#endif surrounding use of PNG_DEBUG in png.h . - Changed "bad adaptive filter type" from error to warning in pngrutil.c . - Fixed a documentation error about default filtering with 8-bit indexed-color. - Separated the PNG_NO_STDIO macro into PNG_NO_STDIO and PNG_NO_CONSOLE_IO - (L. Peter Deutsch). - Added png_set_rgb_to_gray() and png_get_rgb_to_gray_status() functions. - Added png_get_copyright() and png_get_header_version() functions. - Revised comments on png_set_progressive_read_fn() in libpng.txt and example.c - Added information about debugging in libpng.txt and libpng.3 . - Changed "ln -sf" to "ln -s -f" in makefile.s2x, makefile.lnx, and makefile.sco. - Removed lines after Dynamic Dependencies" in makefile.aco . - Revised makefile.dec to make a shared library (Jeremie Petit). - Removed trailing blanks from all files. -version 1.0.2a [January 6, 1999] - Removed misplaced #endif and #ifdef PNG_NO_EXTERN near the end of png.h - Added "if" tests to silence complaints about unused png_ptr in png.h and png.c - Changed "check_if_png" function in example.c to return true (nonzero) if PNG. - Changed libpng.txt to demonstrate png_sig_cmp() instead of png_check_sig() - which is obsolete. - -version 1.0.3 [January 14, 1999] - Added makefile.hux, for Hewlett Packard HPUX 10.20 and 11.00 (Jim Rice) - Added a statement of Y2K compliance in png.h, libpng.3, and Y2KINFO. -version 1.0.3a [August 12, 1999] - Added check for PNG_READ_INTERLACE_SUPPORTED in pngread.c; issue a warning - if an attempt is made to read an interlaced image when it's not supported. - Added check if png_ptr->trans is defined before freeing it in pngread.c - Modified the Y2K statement to include versions back to version 0.71 - Fixed a bug in the check for valid IHDR bit_depth/color_types in pngrutil.c - Modified makefile.wat (added -zp8 flag, ".symbolic", changed some comments) - Replaced leading blanks with tab characters in makefile.hux - Changed "dworkin.wustl.edu" to "ccrc.wustl.edu" in various documents. - Changed (float)red and (float)green to (double)red, (double)green - in png_set_rgb_to_gray() to avoid "promotion" problems in AIX. - Fixed a bug in pngconf.h that omitted when PNG_DEBUG==0 (K Bracey). - Reformatted libpng.3 and libpngpf.3 with proper fonts (script by J. vanZandt). - Updated documentation to refer to the PNG-1.2 specification. - Removed ansi2knr.c and left pointers to the latest source for ansi2knr.c - in makefile.knr, INSTALL, and README (L. Peter Deutsch) - Fixed bugs in calculation of the length of rowbytes when adding alpha - channels to 16-bit images, in pngrtran.c (Chris Nokleberg) - Added function png_set_user_transform_info() to store user_transform_ptr, - user_depth, and user_channels into the png_struct, and a function - png_get_user_transform_ptr() to retrieve the pointer (Chris Nokleberg) - Added function png_set_empty_plte_permitted() to make libpng useable - in MNG applications. - Corrected the typedef for png_free_ptr in png.h (Jesse Jones). - Correct gamma with srgb is 45455 instead of 45000 in pngrutil.c, to be - consistent with PNG-1.2, and allow variance of 500 before complaining. - Added assembler code contributed by Intel in file pngvcrd.c and modified - makefile.w32 to use it (Nirav Chhatrapati, INTEL Corporation, Gilles Vollant) - Changed "ln -s -f" to "ln -f -s" in the makefiles to make Solaris happy. - Added some aliases for png_set_expand() in pngrtran.c, namely - png_set_expand_PLTE(), png_set_expand_depth(), and png_set_expand_tRNS() - (Greg Roelofs, in "PNG: The Definitive Guide"). - Added makefile.beo for BEOS on X86, contributed by Sander Stok. -version 1.0.3b [August 26, 1999] - Replaced 2147483647L several places with PNG_MAX_UINT macro, defined in png.h - Changed leading blanks to tabs in all makefiles. - Define PNG_USE_PNGVCRD in makefile.w32, to get MMX assembler code. - Made alternate versions of png_set_expand() in pngrtran.c, namely - png_set_gray_1_2_4_to_8, png_set_palette_to_rgb, and png_set_tRNS_to_alpha - (Greg Roelofs, in "PNG: The Definitive Guide"). Deleted the 1.0.3a aliases. - Relocated start of 'extern "C"' block in png.h so it doesn't include pngconf.h - Revised calculation of num_blocks in pngmem.c to avoid a potentially - negative shift distance, whose results are undefined in the C language. - Added a check in pngset.c to prevent writing multiple tIME chunks. - Added a check in pngwrite.c to detect invalid small window_bits sizes. -version 1.0.3d [September 4, 1999] - Fixed type casting of igamma in pngrutil.c - Added new png_expand functions to scripts/pngdef.pas and pngos2.def - Added a demo read_user_transform_fn that examines the row filters in pngtest.c - -version 1.0.4 [September 24, 1999] - Define PNG_ALWAYS_EXTERN in pngconf.h if __STDC__ is defined - Delete #define PNG_INTERNAL and include "png.h" from pngasmrd.h - Made several minor corrections to pngtest.c - Renamed the makefiles with longer but more user friendly extensions. - Copied the PNG copyright and license to a separate LICENSE file. - Revised documentation, png.h, and example.c to remove reference to - "viewing_gamma" which no longer appears in the PNG specification. - Revised pngvcrd.c to use MMX code for interlacing only on the final pass. - Updated pngvcrd.c to use the faster C filter algorithms from libpng-1.0.1a - Split makefile.win32vc into two versions, makefile.vcawin32 (uses MMX - assembler code) and makefile.vcwin32 (doesn't). - Added a CPU timing report to pngtest.c (enabled by defining PNGTEST_TIMING) - Added a copy of pngnow.png to the distribution. -version 1.0.4a [September 25, 1999] - Increase max_pixel_depth in pngrutil.c if a user transform needs it. - Changed several division operations to right-shifts in pngvcrd.c -version 1.0.4b [September 30, 1999] - Added parentheses in line 3732 of pngvcrd.c - Added a comment in makefile.linux warning about buggy -O3 in pgcc 2.95.1 -version 1.0.4c [October 1, 1999] - Added a "png_check_version" function in png.c and pngtest.c that will generate - a helpful compiler error if an old png.h is found in the search path. - Changed type of png_user_transform_depth|channels from int to png_byte. -version 1.0.4d [October 6, 1999] - Changed 0.45 to 0.45455 in png_set_sRGB() - Removed unused PLTE entries from pngnow.png - Re-enabled some parts of pngvcrd.c (png_combine_row) that work properly. -version 1.0.4e [October 10, 1999] - Fixed sign error in pngvcrd.c (Greg Roelofs) - Replaced some instances of memcpy with simple assignments in pngvcrd (GR-P) -version 1.0.4f [October 15, 1999] - Surrounded example.c code with #if 0 .. #endif to prevent people from - inadvertently trying to compile it. - Changed png_get_header_version() from a function to a macro in png.h - Added type casting mostly in pngrtran.c and pngwtran.c - Removed some pointless "ptr = NULL" in pngmem.c - Added a "contrib" directory containing the source code from Greg's book. - -version 1.0.5 [October 15, 1999] - Minor editing of the INSTALL and README files. -version 1.0.5a [October 23, 1999] - Added contrib/pngsuite and contrib/pngminus (Willem van Schaik) - Fixed a typo in the png_set_sRGB() function call in example.c (Jan Nijtmans) - Further optimization and bugfix of pngvcrd.c - Revised pngset.c so that it does not allocate or free memory in the user's - text_ptr structure. Instead, it makes its own copy. - Created separate write_end_info_struct in pngtest.c for a more severe test. - Added code in pngwrite.c to free info_ptr->text[i].key to stop a memory leak. -version 1.0.5b [November 23, 1999] - Moved PNG_FLAG_HAVE_CHUNK_HEADER, PNG_FLAG_BACKGROUND_IS_GRAY and - PNG_FLAG_WROTE_tIME from flags to mode. - Added png_write_info_before_PLTE() function. - Fixed some typecasting in contrib/gregbook/*.c - Updated scripts/makevms.com and added makevms.com to contrib/gregbook - and contrib/pngminus (Martin Zinser) -version 1.0.5c [November 26, 1999] - Moved png_get_header_version from png.h to png.c, to accommodate ansi2knr. - Removed all global arrays (according to PNG_NO_GLOBAL_ARRAYS macro), to - accommodate making DLL's: Moved usr_png_ver from global variable to function - png_get_header_ver() in png.c. Moved png_sig to png_sig_bytes in png.c and - eliminated use of png_sig in pngwutil.c. Moved the various png_CHNK arrays - into pngtypes.h. Eliminated use of global png_pass arrays. Declared the - png_CHNK and png_pass arrays to be "const". Made the global arrays - available to applications (although none are used in libpng itself) when - PNG_NO_GLOBAL_ARRAYS is not defined or when PNG_GLOBAL_ARRAYS is defined. - Removed some extraneous "-I" from contrib/pngminus/makefile.std - Changed the PNG_sRGB_INTENT macros in png.h to be consistent with PNG-1.2. - Change PNG_SRGB_INTENT to PNG_sRGB_INTENT in libpng.txt and libpng.3 -version 1.0.5d [November 29, 1999] - Add type cast (png_const_charp) two places in png.c - Eliminated pngtypes.h; use macros instead to declare PNG_CHNK arrays. - Renamed "PNG_GLOBAL_ARRAYS" to "PNG_USE_GLOBAL_ARRAYS" and made available - to applications a macro "PNG_USE_LOCAL_ARRAYS". - #ifdef out all the new declarations when PNG_USE_GLOBAL_ARRAYS is defined. - Added PNG_EXPORT_VAR macro to accommodate making DLL's. -version 1.0.5e [November 30, 1999] - Added iCCP, iTXt, and sPLT support; added "lang" member to the png_text - structure; refactored the inflate/deflate support to make adding new chunks - with trailing compressed parts easier in the future, and added new functions - png_free_iCCP, png_free_pCAL, png_free_sPLT, png_free_text, png_get_iCCP, - png_get_spalettes, png_set_iCCP, png_set_spalettes (Eric S. Raymond). - NOTE: Applications that write text chunks MUST define png_text->lang - before calling png_set_text(). It must be set to NULL if you want to - write tEXt or zTXt chunks. If you want your application to be able to - run with older versions of libpng, use - - #ifdef PNG_iTXt_SUPPORTED - png_text[i].lang = NULL; - #endif - - Changed png_get_oFFs() and png_set_oFFs() to use signed rather than unsigned - offsets (Eric S. Raymond). - Combined PNG_READ_cHNK_SUPPORTED and PNG_WRITE_cHNK_SUPPORTED macros into - PNG_cHNK_SUPPORTED and combined the three types of PNG_text_SUPPORTED - macros, leaving the separate macros also available. - Removed comments on #endifs at the end of many short, non-nested #if-blocks. -version 1.0.5f [December 6, 1999] - Changed makefile.solaris to issue a warning about potential problems when - the ucb "ld" is in the path ahead of the ccs "ld". - Removed "- [date]" from the "synopsis" line in libpng.3 and libpngpf.3. - Added sCAL chunk support (Eric S. Raymond). -version 1.0.5g [December 7, 1999] - Fixed "png_free_spallettes" typo in png.h - Added code to handle new chunks in pngpread.c - Moved PNG_CHNK string macro definitions outside of PNG_NO_EXTERN block - Added "translated_key" to png_text structure and png_write_iTXt(). - Added code in pngwrite.c to work around a newly discovered zlib bug. -version 1.0.5h [December 10, 1999] - NOTE: regarding the note for version 1.0.5e, the following must also - be included in your code: - png_text[i].translated_key = NULL; - Unknown chunk handling is now supported. - Option to eliminate all floating point support was added. Some new - fixed-point functions such as png_set_gAMA_fixed() were added. - Expanded tabs and removed trailing blanks in source files. -version 1.0.5i [December 13, 1999] - Added some type casts to silence compiler warnings. - Renamed "png_free_spalette" to "png_free_spalettes" for consistency. - Removed leading blanks from a #define in pngvcrd.c - Added some parameters to the new png_set_keep_unknown_chunks() function. - Added a test for up->location != 0 in the first instance of writing - unknown chunks in pngwrite.c - Changed "num" to "i" in png_free_spalettes() and png_free_unknowns() to - prevent recursion. - Added png_free_hIST() function. - Various patches to fix bugs in the sCAL and integer cHRM processing, - and to add some convenience macros for use with sCAL. -version 1.0.5j [December 21, 1999] - Changed "unit" parameter of png_write_sCAL from png_byte to int, to work - around buggy compilers. - Added new type "png_fixed_point" for integers that hold float*100000 values - Restored backward compatibility of tEXt/zTXt chunk processing: - Restored the first four members of png_text to the same order as v.1.0.5d. - Added members "lang_key" and "itxt_length" to png_text struct. Set - text_length=0 when "text" contains iTXt data. Use the "compression" - member to distinguish among tEXt/zTXt/iTXt types. Added - PNG_ITXT_COMPRESSION_NONE (1) and PNG_ITXT_COMPRESSION_zTXt(2) macros. - The "Note" above, about backward incompatibility of libpng-1.0.5e, no - longer applies. - Fixed png_read|write_iTXt() to read|write parameters in the right order, - and to write the iTXt chunk after IDAT if it appears in the end_ptr. - Added pnggccrd.c, version of pngvcrd.c Intel assembler for gcc (Greg Roelofs) - Reversed the order of trying to write floating-point and fixed-point gAMA. -version 1.0.5k [December 27, 1999] - Added many parentheses, e.g., "if (a && b & c)" becomes "if (a && (b & c))" - Added png_handle_as_unknown() function (Glenn) - Added png_free_chunk_list() function and chunk_list and num_chunk_list members - of png_ptr. - Eliminated erroneous warnings about multiple sPLT chunks and sPLT-after-PLTE. - Fixed a libpng-1.0.5h bug in pngrutil.c that was issuing erroneous warnings - about ignoring incorrect gAMA with sRGB (gAMA was in fact not ignored) - Added png_free_tRNS(); png_set_tRNS() now malloc's its own trans array (ESR). - Define png_get_int_32 when oFFs chunk is supported as well as when pCAL is. - Changed type of proflen from png_int_32 to png_uint_32 in png_get_iCCP(). -version 1.0.5l [January 1, 2000] - Added functions png_set_read_user_chunk_fn() and png_get_user_chunk_ptr() - for setting a callback function to handle unknown chunks and for - retrieving the associated user pointer (Glenn). -version 1.0.5m [January 7, 2000] - Added high-level functions png_read_png(), png_write_png(), png_free_pixels(). -version 1.0.5n [January 9, 2000] - Added png_free_PLTE() function, and modified png_set_PLTE() to malloc its - own memory for info_ptr->palette. This makes it safe for the calling - application to free its copy of the palette any time after it calls - png_set_PLTE(). -version 1.0.5o [January 20, 2000] - Cosmetic changes only (removed some trailing blanks and TABs) -version 1.0.5p [January 31, 2000] - Renamed pngdll.mak to makefile.bd32 - Cosmetic changes in pngtest.c -version 1.0.5q [February 5, 2000] - Relocated the makefile.solaris warning about PATH problems. - Fixed pngvcrd.c bug by pushing/popping registers in mmxsupport (Bruce Oberg) - Revised makefile.gcmmx - Added PNG_SETJMP_SUPPORTED, PNG_SETJMP_NOT_SUPPORTED, and PNG_ABORT() macros -version 1.0.5r [February 7, 2000] - Removed superfluous prototype for png_get_itxt from png.h - Fixed a bug in pngrtran.c that improperly expanded the background color. - Return *num_text=0 from png_get_text() when appropriate, and fix documentation - of png_get_text() in libpng.txt/libpng.3. -version 1.0.5s [February 18, 2000] - Added "png_jmp_env()" macro to pngconf.h, to help people migrate to the - new error handler that's planned for the next libpng release, and changed - example.c, pngtest.c, and contrib programs to use this macro. - Revised some of the DLL-export macros in pngconf.h (Greg Roelofs) - Fixed a bug in png_read_png() that caused it to fail to expand some images - that it should have expanded. - Fixed some mistakes in the unused and undocumented INCH_CONVERSIONS functions - in pngget.c - Changed the allocation of palette, history, and trans arrays back to - the version 1.0.5 method (linking instead of copying) which restores - backward compatibility with version 1.0.5. Added some remarks about - that in example.c. Added "free_me" member to info_ptr and png_ptr - and added png_free_data() function. - Updated makefile.linux and makefile.gccmmx to make directories conditionally. - Made cosmetic changes to pngasmrd.h - Added png_set_rows() and png_get_rows(), for use with png_read|write_png(). - Modified png_read_png() to allocate info_ptr->row_pointers only if it - hasn't already been allocated. -version 1.0.5t [March 4, 2000] - Changed png_jmp_env() migration aiding macro to png_jmpbuf(). - Fixed "interlace" typo (should be "interlaced") in contrib/gregbook/read2-x.c - Fixed bug with use of PNG_BEFORE_IHDR bit in png_ptr->mode, introduced when - PNG_FLAG_HAVE_CHUNK_HEADER was moved into png_ptr->mode in version 1.0.5b - Files in contrib/gregbook were revised to use png_jmpbuf() and to select - a 24-bit visual if one is available, and to allow abbreviated options. - Files in contrib/pngminus were revised to use the png_jmpbuf() macro. - Removed spaces in makefile.linux and makefile.gcmmx, introduced in 1.0.5s -version 1.0.5u [March 5, 2000] - Simplified the code that detects old png.h in png.c and pngtest.c - Renamed png_spalette (_p, _pp) to png_sPLT_t (_tp, _tpp) - Increased precision of rgb_to_gray calculations from 8 to 15 bits and - added png_set_rgb_to_gray_fixed() function. - Added makefile.bc32 (32-bit Borland C++, C mode) -version 1.0.5v [March 11, 2000] - Added some parentheses to the png_jmpbuf macro definition. - Updated references to the zlib home page, which has moved to freesoftware.com. - Corrected bugs in documentation regarding png_read_row() and png_write_row(). - Updated documentation of png_rgb_to_gray calculations in libpng.3/libpng.txt. - Renamed makefile.borland,turboc3 back to makefile.bor,tc3 as in version 1.0.3, - revised borland makefiles; added makefile.ibmvac3 and makefile.gcc (Cosmin) - -version 1.0.6 [March 20, 2000] - Minor revisions of makefile.bor, libpng.txt, and gregbook/rpng2-win.c - Added makefile.sggcc (SGI IRIX with gcc) -version 1.0.6d [April 7, 2000] - Changed sprintf() to strcpy() in png_write_sCAL_s() to work without STDIO - Added data_length parameter to png_decompress_chunk() function - Revised documentation to remove reference to abandoned png_free_chnk functions - Fixed an error in png_rgb_to_gray_fixed() - Revised example.c, usage of png_destroy_write_struct(). - Renamed makefile.ibmvac3 to makefile.ibmc, added libpng.icc IBM project file - Added a check for info_ptr->free_me&PNG_FREE_TEXT when freeing text in png.c - Simplify png_sig_bytes() function to remove use of non-ISO-C strdup(). -version 1.0.6e [April 9, 2000] - Added png_data_freer() function. - In the code that checks for over-length tRNS chunks, added check of - info_ptr->num_trans as well as png_ptr->num_trans (Matthias Benckmann) - Minor revisions of libpng.txt/libpng.3. - Check for existing data and free it if the free_me flag is set, in png_set_*() - and png_handle_*(). - Only define PNG_WEIGHTED_FILTERS_SUPPORTED when PNG_FLOATING_POINT_SUPPORTED - is defined. - Changed several instances of PNG_NO_CONSOLE_ID to PNG_NO_STDIO in pngrutil.c - and mentioned the purposes of the two macros in libpng.txt/libpng.3. -version 1.0.6f [April 14, 2000] - Revised png_set_iCCP() and png_set_rows() to avoid prematurely freeing data. - Add checks in png_set_text() for NULL members of the input text structure. - Revised libpng.txt/libpng.3. - Removed superfluous prototype for png_set_itxt from png.h - Removed "else" from pngread.c, after png_error(), and changed "0" to "length". - Changed several png_errors about malformed ancillary chunks to png_warnings. -version 1.0.6g [April 24, 2000] - Added png_pass-* arrays to pnggccrd.c when PNG_USE_LOCAL_ARRAYS is defined. - Relocated paragraph about png_set_background() in libpng.3/libpng.txt - and other revisions (Matthias Benckmann) - Relocated info_ptr->free_me, png_ptr->free_me, and other info_ptr and - png_ptr members to restore binary compatibility with libpng-1.0.5 - (breaks compatibility with libpng-1.0.6). -version 1.0.6h [April 24, 2000] - Changed shared library so-number pattern from 2.x.y.z to xy.z (this builds - libpng.so.10 & libpng.so.10.6h instead of libpng.so.2 & libpng.so.2.1.0.6h) - This is a temporary change for test purposes. -version 1.0.6i [May 2, 2000] - Rearranged some members at the end of png_info and png_struct, to put - unknown_chunks_num and free_me within the original size of the png_structs - and free_me, png_read_user_fn, and png_free_fn within the original png_info, - because some old applications allocate the structs directly instead of - using png_create_*(). - Added documentation of user memory functions in libpng.txt/libpng.3 - Modified png_read_png so that it will use user_allocated row_pointers - if present, unless free_me directs that it be freed, and added description - of the use of png_set_rows() and png_get_rows() in libpng.txt/libpng.3. - Added PNG_LEGACY_SUPPORTED macro, and #ifdef out all new (since version - 1.00) members of png_struct and png_info, to regain binary compatibility - when you define this macro. Capabilities lost in this event - are user transforms (new in version 1.0.0),the user transform pointer - (new in version 1.0.2), rgb_to_gray (new in 1.0.5), iCCP, sCAL, sPLT, - the high-level interface, and unknown chunks support (all new in 1.0.6). - This was necessary because of old applications that allocate the structs - directly as authors were instructed to do in libpng-0.88 and earlier, - instead of using png_create_*(). - Added modes PNG_CREATED_READ_STRUCT and PNG_CREATED_WRITE_STRUCT which - can be used to detect codes that directly allocate the structs, and - code to check these modes in png_read_init() and png_write_init() and - generate a libpng error if the modes aren't set and PNG_LEGACY_SUPPORTED - was not defined. - Added makefile.intel and updated makefile.watcom (Pawel Mrochen) -version 1.0.6j [May 3, 2000] - Overloaded png_read_init() and png_write_init() with macros that convert - calls to png_read_init_2() or png_write_init_2() that check the version - and structure sizes. -version 1.0.7beta11 [May 7, 2000] - Removed the new PNG_CREATED_READ_STRUCT and PNG_CREATED_WRITE_STRUCT modes - which are no longer used. - Eliminated the three new members of png_text when PNG_LEGACY_SUPPORTED is - defined or when neither PNG_READ_iTXt_SUPPORTED nor PNG_WRITE_iTXT_SUPPORTED - is defined. - Made PNG_NO_READ|WRITE_iTXt the default setting, to avoid memory - overrun when old applications fill the info_ptr->text structure directly. - Added PNGAPI macro, and added it to the definitions of all exported functions. - Relocated version macro definitions ahead of the includes of zlib.h and - pngconf.h in png.h. -version 1.0.7beta12 [May 12, 2000] - Revised pngset.c to avoid a problem with expanding the png_debug macro. - Deleted some extraneous defines from pngconf.h - Made PNG_NO_CONSOLE_IO the default condition when PNG_BUILD_DLL is defined. - Use MSC _RPTn debugging instead of fprintf if _MSC_VER is defined. - Added png_access_version_number() function. - Check for mask&PNG_FREE_CHNK (for TEXT, SCAL, PCAL) in png_free_data(). - Expanded libpng.3/libpng.txt information about png_data_freer(). -version 1.0.7beta14 [May 17, 2000] (beta13 was not published) - Changed pnggccrd.c and pngvcrd.c to handle bad adaptive filter types as - warnings instead of errors, as pngrutil.c does. - Set the PNG_INFO_IDAT valid flag in png_set_rows() so png_write_png() - will actually write IDATs. - Made the default PNG_USE_LOCAL_ARRAYS depend on PNG_DLL instead of WIN32. - Make png_free_data() ignore its final parameter except when freeing data - that can have multiple instances (text, sPLT, unknowns). - Fixed a new bug in png_set_rows(). - Removed info_ptr->valid tests from png_free_data(), as in version 1.0.5. - Added png_set_invalid() function. - Fixed incorrect illustrations of png_destroy_write_struct() in example.c. -version 1.0.7beta15 [May 30, 2000] - Revised the deliberately erroneous Linux setjmp code in pngconf.h to produce - fewer error messages. - Rearranged checks for Z_OK to check the most likely path first in pngpread.c - and pngwutil.c. - Added checks in pngtest.c for png_create_*() returning NULL, and mentioned - in libpng.txt/libpng.3 the need for applications to check this. - Changed names of png_default_*() functions in pngtest to pngtest_*(). - Changed return type of png_get_x|y_offset_*() from png_uint_32 to png_int_32. - Fixed some bugs in the unused PNG_INCH_CONVERSIONS functions in pngget.c - Set each pointer to NULL after freeing it in png_free_data(). - Worked around a problem in pngconf.h; AIX's strings.h defines an "index" - macro that conflicts with libpng's png_color_16.index. (Dimitri Papadapoulos) - Added "msvc" directory with MSVC++ project files (Simon-Pierre Cadieux). -version 1.0.7beta16 [June 4, 2000] - Revised the workaround of AIX string.h "index" bug. - Added a check for overlength PLTE chunk in pngrutil.c. - Added PNG_NO_POINTER_INDEXING macro to use array-indexing instead of pointer - indexing in pngrutil.c and pngwutil.c to accommodate a buggy compiler. - Added a warning in png_decompress_chunk() when it runs out of data, e.g. - when it tries to read an erroneous PhotoShop iCCP chunk. - Added PNG_USE_DLL macro. - Revised the copyright/disclaimer/license notice. - Added contrib/msvctest directory -version 1.0.7rc1 [June 9, 2000] - Corrected the definition of PNG_TRANSFORM_INVERT_ALPHA (0x0400 not 0x0200) - Added contrib/visupng directory (Willem van Schaik) -version 1.0.7beta18 [June 23, 2000] - Revised PNGAPI definition, and pngvcrd.c to work with __GCC__ - and do not redefine PNGAPI if it is passed in via a compiler directive. - Revised visupng/PngFile.c to remove returns from within the Try block. - Removed leading underscores from "_PNG_H" and "_PNG_SAVE_BSD_SOURCE" macros. - Updated contrib/visupng/cexcept.h to version 1.0.0. - Fixed bugs in pngwrite.c and pngwutil.c that prevented writing iCCP chunks. -version 1.0.7rc2 [June 28, 2000] - Updated license to include disclaimers required by UCITA. - Fixed "DJBPP" typo in pnggccrd.c introduced in beta18. - -version 1.0.7 [July 1, 2000] - Revised the definition of "trans_values" in libpng.3/libpng.txt -version 1.0.8beta1 [July 8, 2000] - Added png_free(png_ptr, key) two places in pngpread.c to stop memory leaks. - Changed PNG_NO_STDIO to PNG_NO_CONSOLE_IO, several places in pngrutil.c and - pngwutil.c. - Changed PNG_EXPORT_VAR to use PNG_IMPEXP, in pngconf.h. - Removed unused "#include " from png.c - Added WindowsCE support. - Revised pnggccrd.c to work with gcc-2.95.2 and in the Cygwin environment. -version 1.0.8beta2 [July 10, 2000] - Added project files to the wince directory and made further revisions - of pngtest.c, pngrio.c, and pngwio.c in support of WindowsCE. -version 1.0.8beta3 [July 11, 2000] - Only set the PNG_FLAG_FREE_TRNS or PNG_FREE_TRNS flag in png_handle_tRNS() - for indexed-color input files to avoid potential double-freeing trans array - under some unusual conditions; problem was introduced in version 1.0.6f. - Further revisions to pngtest.c and files in the wince subdirectory. -version 1.0.8beta4 [July 14, 2000] - Added the files pngbar.png and pngbar.jpg to the distribution. - Added makefile.cygwin, and cygwin support in pngconf.h - Added PNG_NO_ZALLOC_ZERO macro (makes png_zalloc skip zeroing memory) -version 1.0.8rc1 [July 16, 2000] - Revised png_debug() macros and statements to eliminate compiler warnings. - -version 1.0.8 [July 24, 2000] - Added png_flush() in pngwrite.c, after png_write_IEND(). - Updated makefile.hpux to build a shared library. -version 1.0.9beta1 [November 10, 2000] - Fixed typo in scripts/makefile.hpux - Updated makevms.com in scripts and contrib/* and contrib/* (Martin Zinser) - Fixed seqence-point bug in contrib/pngminus/png2pnm (Martin Zinser) - Changed "cdrom.com" in documentation to "libpng.org" - Revised pnggccrd.c to get it all working, and updated makefile.gcmmx (Greg). - Changed type of "params" from voidp to png_voidp in png_read|write_png(). - Make sure PNGAPI and PNG_IMPEXP are defined in pngconf.h. - Revised the 3 instances of WRITEFILE in pngtest.c. - Relocated "msvc" and "wince" project subdirectories into "dll" subdirectory. - Updated png.rc in dll/msvc project - Revised makefile.dec to define and use LIBPATH and INCPATH - Increased size of global png_libpng_ver[] array from 12 to 18 chars. - Made global png_libpng_ver[], png_sig[] and png_pass_*[] arrays const. - Removed duplicate png_crc_finish() from png_handle_bKGD() function. - Added a warning when application calls png_read_update_info() multiple times. - Revised makefile.cygwin - Fixed bugs in iCCP support in pngrutil.c and pngwutil.c. - Replaced png_set_empty_plte_permitted() with png_permit_mng_features(). -version 1.0.9beta2 [November 19, 2000] - Renamed the "dll" subdirectory "projects". - Added borland project files to "projects" subdirectory. - Set VS_FF_PRERELEASE and VS_FF_PATCHED flags in msvc/png.rc when appropriate. - Add error message in png_set_compression_buffer_size() when malloc fails. -version 1.0.9beta3 [November 23, 2000] - Revised PNG_LIBPNG_BUILD_TYPE macro in png.h, used in the msvc project. - Removed the png_flush() in pngwrite.c that crashes some applications - that don't set png_output_flush_fn. - Added makefile.macosx and makefile.aix to scripts directory. -version 1.0.9beta4 [December 1, 2000] - Change png_chunk_warning to png_warning in png_check_keyword(). - Increased the first part of msg buffer from 16 to 18 in png_chunk_error(). -version 1.0.9beta5 [December 15, 2000] - Added support for filter method 64 (for PNG datastreams embedded in MNG). -version 1.0.9beta6 [December 18, 2000] - Revised png_set_filter() to accept filter method 64 when appropriate. - Added new PNG_HAVE_PNG_SIGNATURE bit to png_ptr->mode and use it to - help prevent applications from using MNG features in PNG datastreams. - Added png_permit_mng_features() function. - Revised libpng.3/libpng.txt. Changed "filter type" to "filter method". -version 1.0.9rc1 [December 23, 2000] - Revised test for PNG_HAVE_PNG_SIGNATURE in pngrutil.c - Fixed error handling of unknown compression type in png_decompress_chunk(). - In pngconf.h, define __cdecl when _MSC_VER is defined. -version 1.0.9beta7 [December 28, 2000] - Changed PNG_TEXT_COMPRESSION_zTXt to PNG_COMPRESSION_TYPE_BASE several places. - Revised memory management in png_set_hIST and png_handle_hIST in a backward - compatible manner. PLTE and tRNS were revised similarly. - Revised the iCCP chunk reader to ignore trailing garbage. -version 1.0.9beta8 [January 12, 2001] - Moved pngasmrd.h into pngconf.h. - Improved handling of out-of-spec garbage iCCP chunks generated by PhotoShop. -version 1.0.9beta9 [January 15, 2001] - Added png_set_invalid, png_permit_mng_features, and png_mmx_supported to - wince and msvc project module definition files. - Minor revision of makefile.cygwin. - Fixed bug with progressive reading of narrow interlaced images in pngpread.c -version 1.0.9beta10 [January 16, 2001] - Do not typedef png_FILE_p in pngconf.h when PNG_NO_STDIO is defined. - Fixed "png_mmx_supported" typo in project definition files. -version 1.0.9beta11 [January 19, 2001] - Updated makefile.sgi to make shared library. - Removed png_mmx_support() function and disabled PNG_MNG_FEATURES_SUPPORTED - by default, for the benefit of DLL forward compatibility. These will - be re-enabled in version 1.2.0. -version 1.0.9rc2 [January 22, 2001] - Revised cygwin support. - -version 1.0.9 [January 31, 2001] - Added check of cygwin's ALL_STATIC in pngconf.h - Added "-nommx" parameter to contrib/gregbook/rpng2-win and rpng2-x demos. -version 1.0.10beta1 [March 14, 2001] - Revised makefile.dec, makefile.sgi, and makefile.sggcc; added makefile.hpgcc. - Reformatted libpng.3 to eliminate bad line breaks. - Added checks for _mmx_supported in the read_filter_row function of pnggccrd.c - Added prototype for png_mmx_support() near the top of pnggccrd.c - Moved some error checking from png_handle_IHDR to png_set_IHDR. - Added PNG_NO_READ_SUPPORTED and PNG_NO_WRITE_SUPPORTED macros. - Revised png_mmx_support() function in pnggccrd.c - Restored version 1.0.8 PNG_WRITE_EMPTY_PLTE_SUPPORTED behavior in pngwutil.c - Fixed memory leak in contrib/visupng/PngFile.c - Fixed bugs in png_combine_row() in pnggccrd.c and pngvcrd.c (C version) - Added warnings when retrieving or setting gamma=0. - Increased the first part of msg buffer from 16 to 18 in png_chunk_warning(). -version 1.0.10rc1 [March 23, 2001] - Changed all instances of memcpy, strcpy, and strlen to png_memcpy, png_strcpy, - and png_strlen. - Revised png_mmx_supported() function in pnggccrd.c to return proper value. - Fixed bug in progressive reading (pngpread.c) with small images (height < 8). - -version 1.0.10 [March 30, 2001] - Deleted extraneous space (introduced in 1.0.9) from line 42 of makefile.cygwin - Added beos project files (Chris Herborth) -version 1.0.11beta1 [April 3, 2001] - Added type casts on several png_malloc() calls (Dimitri Papadapoulos). - Removed a no-longer needed AIX work-around from pngconf.h - Changed several "//" single-line comments to C-style in pnggccrd.c -version 1.0.11beta2 [April 11, 2001] - Removed PNGAPI from several functions whose prototypes did not have PNGAPI. - Updated scripts/pngos2.def -version 1.0.11beta3 [April 14, 2001] - Added checking the results of many instances of png_malloc() for NULL -version 1.0.11beta4 [April 20, 2001] - Undid the changes from version 1.0.11beta3. Added a check for NULL return - from user's malloc_fn(). - Removed some useless type casts of the NULL pointer. - Added makefile.netbsd - -version 1.0.11 [April 27, 2001] - Revised makefile.netbsd -version 1.0.12beta1 [May 14, 2001] - Test for Windows platform in pngconf.h when including malloc.h (Emmanuel Blot) - Updated makefile.cygwin and handling of Cygwin's ALL_STATIC in pngconf.h - Added some never-to-be-executed code in pnggccrd.c to quiet compiler warnings. - Eliminated the png_error about apps using png_read|write_init(). Instead, - libpng will reallocate the png_struct and info_struct if they are too small. - This retains future binary compatibility for old applications written for - libpng-0.88 and earlier. -version 1.2.0beta1 [May 6, 2001] - Bumped DLLNUM to 2. - Re-enabled PNG_MNG_FEATURES_SUPPORTED and enabled PNG_ASSEMBLER_CODE_SUPPORTED - by default. - Added runtime selection of MMX features. - Added png_set_strip_error_numbers function and related macros. -version 1.2.0beta2 [May 7, 2001] - Finished merging 1.2.0beta1 with version 1.0.11 - Added a check for attempts to read or write PLTE in grayscale PNG datastreams. -version 1.2.0beta3 [May 17, 2001] - Enabled user memory function by default. - Modified png_create_struct so it passes user mem_ptr to user memory allocator. - Increased png_mng_features flag from png_byte to png_uint_32. - Bumped shared-library (so-number) and dll-number to 3. -version 1.2.0beta4 [June 23, 2001] - Check for missing profile length field in iCCP chunk and free chunk_data - in case of truncated iCCP chunk. - Bumped shared-library number to 3 in makefile.sgi and makefile.sggcc - Bumped dll-number from 2 to 3 in makefile.cygwin - Revised contrib/gregbook/rpng*-x.c to avoid a memory leak and to exit cleanly - if user attempts to run it on an 8-bit display. - Updated contrib/gregbook - Use png_malloc instead of png_zalloc to allocate palette in pngset.c - Updated makefile.ibmc - Added some typecasts to eliminate gcc 3.0 warnings. Changed prototypes - of png_write_oFFS width and height from png_uint_32 to png_int_32. - Updated example.c - Revised prototypes for png_debug_malloc and png_debug_free in pngtest.c -version 1.2.0beta5 [August 8, 2001] - Revised contrib/gregbook - Revised makefile.gcmmx - Revised pnggccrd.c to conditionally compile some thread-unsafe code only - when PNG_THREAD_UNSAFE_OK is defined. - Added tests to prevent pngwutil.c from writing a bKGD or tRNS chunk with - value exceeding 2^bit_depth-1 - Revised makefile.sgi and makefile.sggcc - Replaced calls to fprintf(stderr,...) with png_warning() in pnggccrd.c - Removed restriction that do_invert_mono only operate on 1-bit opaque files - -version 1.2.0 [September 1, 2001] - Changed a png_warning() to png_debug() in pnggccrd.c - Fixed contrib/gregbook/rpng-x.c, rpng2-x.c to avoid crash with XFreeGC(). -version 1.2.1beta1 [October 19, 2001] - Revised makefile.std in contrib/pngminus - Include background_1 in png_struct regardless of gamma support. - Revised makefile.netbsd and makefile.macosx, added makefile.darwin. - Revised example.c to provide more details about using row_callback(). -version 1.2.1beta2 [October 25, 2001] - Added type cast to each NULL appearing in a function call, except for - WINCE functions. - Added makefile.so9. -version 1.2.1beta3 [October 27, 2001] - Removed type casts from all NULLs. - Simplified png_create_struct_2(). -version 1.2.1beta4 [November 7, 2001] - Revised png_create_info_struct() and png_creat_struct_2(). - Added error message if png_write_info() was omitted. - Type cast NULLs appearing in function calls when _NO_PROTO or - PNG_TYPECAST_NULL is defined. -version 1.2.1rc1 [November 24, 2001] - Type cast NULLs appearing in function calls except when PNG_NO_TYPECAST_NULL - is defined. - Changed typecast of "size" argument to png_size_t in pngmem.c calls to - the user malloc_fn, to agree with the prototype in png.h - Added a pop/push operation to pnggccrd.c, to preserve Eflag (Maxim Sobolev) - Updated makefile.sgi to recognize LIBPATH and INCPATH. - Updated various makefiles so "make clean" does not remove previous major - version of the shared library. -version 1.2.1rc2 [December 4, 2001] - Always allocate 256-entry internal palette, hist, and trans arrays, to - avoid out-of-bounds memory reference caused by invalid PNG datastreams. - Added a check for prefix_length > data_length in iCCP chunk handler. - -version 1.2.1 [December 7, 2001] - None. -version 1.2.2beta1 [February 22, 2002] - Fixed a bug with reading the length of iCCP profiles (Larry Reeves). - Revised makefile.linux, makefile.gcmmx, and makefile.sgi to generate - libpng.a, libpng12.so (not libpng.so.3), and libpng12/png.h - Revised makefile.darwin to remove "-undefined suppress" option. - Added checks for gamma and chromaticity values over 21474.83, which exceed - the limit for PNG unsigned 32-bit integers when encoded. - Revised calls to png_create_read_struct() and png_create_write_struct() - for simpler debugging. - Revised png_zalloc() so zlib handles errors (uses PNG_FLAG_MALLOC_NULL_MEM_OK) -version 1.2.2beta2 [February 23, 2002] - Check chunk_length and idat_size for invalid (over PNG_MAX_UINT) lengths. - Check for invalid image dimensions in png_get_IHDR. - Added missing "fi;" in the install target of the SGI makefiles. - Added install-static to all makefiles that make shared libraries. - Always do gamma compensation when image is partially transparent. -version 1.2.2beta3 [March 7, 2002] - Compute background.gray and background_1.gray even when color_type is RGB - in case image gets reduced to gray later. - Modified shared-library makefiles to install pkgconfig/libpngNN.pc. - Export (with PNGAPI) png_zalloc, png_zfree, and png_handle_as_unknown - Removed unused png_write_destroy_info prototype from png.h - Eliminated incorrect use of width_mmx from pnggccrd.c in pixel_bytes == 8 case - Added install-shared target to all makefiles that make shared libraries. - Stopped a double free of palette, hist, and trans when not using free_me. - Added makefile.32sunu for Sun Ultra 32 and makefile.64sunu for Sun Ultra 64. -version 1.2.2beta4 [March 8, 2002] - Compute background.gray and background_1.gray even when color_type is RGB - in case image gets reduced to gray later (Jason Summers). - Relocated a misplaced /bin/rm in the "install-shared" makefile targets - Added PNG_1_0_X macro which can be used to build a 1.0.x-compatible library. -version 1.2.2beta5 [March 26, 2002] - Added missing PNGAPI to several function definitions. - Check for invalid bit_depth or color_type in png_get_IHDR(), and - check for missing PLTE or IHDR in png_push_read_chunk() (Matthias Clasen). - Revised iTXt support to accept NULL for lang and lang_key. - Compute gamma for color components of background even when color_type is gray. - Changed "()" to "{}" in scripts/libpng.pc.in. - Revised makefiles to put png.h and pngconf.h only in $prefix/include/libpngNN - Revised makefiles to make symlink to libpng.so.NN in addition to libpngNN.so -version 1.2.2beta6 [March 31, 2002] -version 1.0.13beta1 [March 31, 2002] - Prevent png_zalloc() from trying to memset memory that it failed to acquire. - Add typecasts of PNG_MAX_UINT in pngset_cHRM_fixed() (Matt Holgate). - Ensure that the right function (user or default) is used to free the - png_struct after an error in png_create_read_struct_2(). -version 1.2.2rc1 [April 7, 2002] -version 1.0.13rc1 [April 7, 2002] - Save the ebx register in pnggccrd.c (Sami Farin) - Add "mem_ptr = png_ptr->mem_ptr" in png_destroy_write_struct() (Paul Gardner). - Updated makefiles to put headers in include/libpng and remove old include/*.h. - -version 1.2.2 [April 15, 2002] -version 1.0.13 [April 15, 2002] - Revised description of png_set_filter() in libpng.3/libpng.txt. - Revised makefile.netbsd and added makefile.neNNbsd and makefile.freebsd -version 1.0.13patch01 [April 17, 2002] -version 1.2.2patch01 [April 17, 2002] - Changed ${PNGMAJ}.${PNGVER} bug to ${PNGVER} in makefile.sgi and makefile.sggcc - Fixed VER -> PNGVER typo in makefile.macosx and added install-static to install - Added install: target to makefile.32sunu and makefile.64sunu -version 1.0.13patch03 [April 18, 2002] -version 1.2.2patch03 [April 18, 2002] - Revised 15 makefiles to link libpng.a to libpngNN.a and the include libpng - subdirectory to libpngNN subdirectory without the full pathname. - Moved generation of libpng.pc from "install" to "all" in 15 makefiles. -version 1.2.3rc1 [April 28, 2002] - Added install-man target to 15 makefiles (Dimitri Papadopolous-Orfanos). - Added $(DESTDIR) feature to 24 makefiles (Tim Mooney) - Fixed bug with $prefix, should be $(prefix) in makefile.hpux. - Updated cygwin-specific portion of pngconf.h and revised makefile.cygwin - Added a link from libpngNN.pc to libpng.pc in 15 makefiles. - Added links from include/libpngNN/*.h to include/*.h in 24 makefiles. - Revised makefile.darwin to make relative links without full pathname. - Added setjmp() at the end of png_create_*_struct_2() in case user forgets - to put one in their application. - Restored png_zalloc() and png_zfree() prototypes to version 1.2.1 and - removed them from module definition files. -version 1.2.3rc2 [May 1, 2002] - Fixed bug in reporting number of channels in pngget.c and pngset.c, - that was introduced in version 1.2.2beta5. - Exported png_zalloc(), png_zfree(), png_default_read(), png_default_write(), - png_default_flush(), and png_push_fill_buffer() and included them in - module definition files. - Added "libpng.pc" dependency to the "install-shared" target in 15 makefiles. -version 1.2.3rc3 [May 1, 2002] - Revised prototype for png_default_flush() - Remove old libpng.pc and libpngNN.pc before installing new ones. -version 1.2.3rc4 [May 2, 2002] - Typos in *.def files (png_default_read|write -> png_default_read|write_data) - In makefiles, changed rm libpng.NN.pc to rm libpngNN.pc - Added libpng-config and libpngNN-config and modified makefiles to install them. - Changed $(MANPATH) to $(DESTDIR)$(MANPATH) in makefiles - Added "Win32 DLL VB" configuration to projects/msvc/libpng.dsp -version 1.2.3rc5 [May 11, 2002] - Changed "error" and "message" in prototypes to "error_message" and - "warning_message" to avoid namespace conflict. - Revised 15 makefiles to build libpng-config from libpng-config-*.in - Once more restored png_zalloc and png_zfree to regular nonexported form. - Restored png_default_read|write_data, png_default_flush, png_read_fill_buffer - to nonexported form, but with PNGAPI, and removed them from module def files. -version 1.2.3rc6 [May 14, 2002] - Removed "PNGAPI" from png_zalloc() and png_zfree() in png.c - Changed "Gz" to "Gd" in projects/msvc/libpng.dsp and zlib.dsp. - Removed leftover libpng-config "sed" script from four makefiles. - Revised libpng-config creating script in 16 makefiles. - -version 1.2.3 [May 22, 2002] - Revised libpng-config target in makefile.cygwin. - Removed description of png_set_mem_fn() from documentation. - Revised makefile.freebsd. - Minor cosmetic changes to 15 makefiles, e.g., $(DI) = $(DESTDIR)/$(INCDIR). - Revised projects/msvc/README.txt - Changed -lpng to -lpngNN in LDFLAGS in several makefiles. -version 1.2.4beta1 [May 24, 2002] - Added libpng.pc and libpng-config to "all:" target in 16 makefiles. - Fixed bug in 16 makefiles: $(DESTDIR)/$(LIBPATH) to $(DESTDIR)$(LIBPATH) - Added missing "\" before closing double quote in makefile.gcmmx. - Plugged various memory leaks; added png_malloc_warn() and png_set_text_2() - functions. -version 1.2.4beta2 [June 25, 2002] - Plugged memory leak of png_ptr->current_text (Matt Holgate). - Check for buffer overflow before reading CRC in pngpread.c (Warwick Allison) - Added -soname to the loader flags in makefile.dec, makefile.sgi, and - makefile.sggcc. - Added "test-installed" target to makefile.linux, makefile.gcmmx, - makefile.sgi, and makefile.sggcc. -version 1.2.4beta3 [June 28, 2002] - Plugged memory leak of row_buf in pngtest.c when there is a png_error(). - Detect buffer overflow in pngpread.c when IDAT is corrupted with extra data. - Added "test-installed" target to makefile.32sunu, makefile.64sunu, - makefile.beos, makefile.darwin, makefile.dec, makefile.macosx, - makefile.solaris, makefile.hpux, makefile.hpgcc, and makefile.so9. -version 1.2.4rc1 and 1.0.14rc1 [July 2, 2002] - Added "test-installed" target to makefile.cygwin and makefile.sco. - Revised pnggccrd.c to be able to back out version 1.0.x via PNG_1_0_X macro. - -version 1.2.4 and 1.0.14 [July 8, 2002] - Changed png_warning() to png_error() when width is too large to process. -version 1.2.4patch01 [July 20, 2002] - Revised makefile.cygwin to use DLL number 12 instead of 13. -version 1.2.5beta1 [August 6, 2002] - Added code to contrib/gregbook/readpng2.c to ignore unused chunks. - Replaced toucan.png in contrib/gregbook (it has been corrupt since 1.0.11) - Removed some stray *.o files from contrib/gregbook. - Changed png_error() to png_warning() about "Too much data" in pngpread.c - and about "Extra compressed data" in pngrutil.c. - Prevent png_ptr->pass from exceeding 7 in png_push_finish_row(). - Updated makefile.hpgcc - Updated png.c and pnggccrd.c handling of return from png_mmx_support() -version 1.2.5beta2 [August 15, 2002] - Only issue png_warning() about "Too much data" in pngpread.c when avail_in - is nonzero. - Updated makefiles to install a separate libpng.so.3 with its own rpath. -version 1.2.5rc1 and 1.0.15rc1 [August 24, 2002] - Revised makefiles to not remove previous minor versions of shared libraries. -version 1.2.5rc2 and 1.0.15rc2 [September 16, 2002] - Revised 13 makefiles to remove "-lz" and "-L$(ZLIBLIB)", etc., from shared - library loader directive. - Added missing "$OBJSDLL" line to makefile.gcmmx. - Added missing "; fi" to makefile.32sunu. -version 1.2.5rc3 and 1.0.15rc3 [September 18, 2002] - Revised libpng-config script. - -version 1.2.5 and 1.0.15 [October 3, 2002] - Revised makefile.macosx, makefile.darwin, makefile.hpgcc, and makefile.hpux, - and makefile.aix. - Relocated two misplaced PNGAPI lines in pngtest.c -version 1.2.6beta1 [October 22, 2002] - Commented out warning about uninitialized mmx_support in pnggccrd.c. - Changed "IBMCPP__" flag to "__IBMCPP__" in pngconf.h. - Relocated two more misplaced PNGAPI lines in pngtest.c - Fixed memory overrun bug in png_do_read_filler() with 16-bit datastreams, - introduced in version 1.0.2. - Revised makefile.macosx, makefile.dec, makefile.aix, and makefile.32sunu. -version 1.2.6beta2 [November 1, 2002] - Added libpng-config "--ldopts" output. - Added "AR=ar" and "ARFLAGS=rc" and changed "ar rc" to "$(AR) $(ARFLAGS)" - in makefiles. -version 1.2.6beta3 [July 18, 2004] - Reverted makefile changes from version 1.2.6beta2 and some of the changes - from version 1.2.6beta1; these will be postponed until version 1.2.7. - Version 1.2.6 is going to be a simple bugfix release. - Changed the one instance of "ln -sf" to "ln -f -s" in each Sun makefile. - Fixed potential overrun in pngerror.c by using strncpy instead of memcpy. - Added "#!/bin/sh" at the top of configure, for recognition of the - 'x' flag under Cygwin (Cosmin). - Optimized vacuous tests that silence compiler warnings, in png.c (Cosmin). - Added support for PNG_USER_CONFIG, in pngconf.h (Cosmin). - Fixed the special memory handler for Borland C under DOS, in pngmem.c - (Cosmin). - Removed some spurious assignments in pngrutil.c (Cosmin). - Replaced 65536 with 65536L, and 0xffff with 0xffffL, to silence warnings - on 16-bit platforms (Cosmin). - Enclosed shift op expressions in parentheses, to silence warnings (Cosmin). - Used proper type png_fixed_point, to avoid problems on 16-bit platforms, - in png_handle_sRGB() (Cosmin). - Added compression_type to png_struct, and optimized the window size - inside the deflate stream (Cosmin). - Fixed definition of isnonalpha(), in pngerror.c and pngrutil.c (Cosmin). - Fixed handling of unknown chunks that come after IDAT (Cosmin). - Allowed png_error() and png_warning() to work even if png_ptr == NULL - (Cosmin). - Replaced row_info->rowbytes with row_bytes in png_write_find_filter() - (Cosmin). - Fixed definition of PNG_LIBPNG_VER_DLLNUM (Simon-Pierre). - Used PNG_LIBPNG_VER and PNG_LIBPNG_VER_STRING instead of the hardcoded - values in png.c (Simon-Pierre, Cosmin). - Initialized png_libpng_ver[] with PNG_LIBPNG_VER_STRING (Simon-Pierre). - Replaced PNG_LIBPNG_VER_MAJOR with PNG_LIBPNG_VER_DLLNUM in png.rc - (Simon-Pierre). - Moved the definition of PNG_HEADER_VERSION_STRING near the definitions - of the other PNG_LIBPNG_VER_... symbols in png.h (Cosmin). - Relocated #ifndef PNGAPI guards in pngconf.h (Simon-Pierre, Cosmin). - Updated scripts/makefile.vc(a)win32 (Cosmin). - Updated the MSVC project (Simon-Pierre, Cosmin). - Updated the Borland C++ Builder project (Cosmin). - Avoided access to asm_flags in pngvcrd.c, if PNG_1_0_X is defined (Cosmin). - Commented out warning about uninitialized mmx_support in pngvcrd.c (Cosmin). - Removed scripts/makefile.bd32 and scripts/pngdef.pas (Cosmin). - Added extra guard around inclusion of Turbo C memory headers, in pngconf.h - (Cosmin). - Renamed projects/msvc/ to projects/visualc6/, and projects/borland/ to - projects/cbuilder5/ (Cosmin). - Moved projects/visualc6/png32ms.def to scripts/pngw32.def, - and projects/visualc6/png.rc to scripts/pngw32.rc (Cosmin). - Added projects/visualc6/pngtest.dsp; removed contrib/msvctest/ (Cosmin). - Changed line endings to DOS style in cbuilder5 and visualc6 files, even - in the tar.* distributions (Cosmin). - Updated contrib/visupng/VisualPng.dsp (Cosmin). - Updated contrib/visupng/cexcept.h to version 2.0.0 (Cosmin). - Added a separate distribution with "configure" and supporting files (Junichi). -version 1.2.6beta4 [July 28, 2004] - Added user ability to change png_size_t via a PNG_SIZE_T macro. - Added png_sizeof() and png_convert_size() functions. - Added PNG_SIZE_MAX (maximum value of a png_size_t variable. - Added check in png_malloc_default() for (size_t)size != (png_uint_32)size - which would indicate an overflow. - Changed sPLT failure action from png_error to png_warning and abandon chunk. - Changed sCAL and iCCP failures from png_error to png_warning and abandon. - Added png_get_uint_31(png_ptr, buf) function. - Added PNG_UINT_32_MAX macro. - Renamed PNG_MAX_UINT to PNG_UINT_31_MAX. - Made png_zalloc() issue a png_warning and return NULL on potential - overflow. - Turn on PNG_NO_ZALLOC_ZERO by default in version 1.2.x - Revised "clobber list" in pnggccrd.c so it will compile under gcc-3.4. - Revised Borland portion of png_malloc() to return NULL or issue - png_error() according to setting of PNG_FLAG_MALLOC_NULL_MEM_OK. - Added PNG_NO_SEQUENTIAL_READ_SUPPORTED macro to conditionally remove - sequential read support. - Added some "#if PNG_WRITE_SUPPORTED" blocks. - #ifdef'ed out some redundancy in png_malloc_default(). - Use png_malloc instead of png_zalloc to allocate the pallete. -version 1.0.16rc1 and 1.2.6rc1 [August 4, 2004] - Fixed buffer overflow vulnerability in png_handle_tRNS() - Fixed integer arithmetic overflow vulnerability in png_read_png(). - Fixed some harmless bugs in png_handle_sBIT, etc, that would cause - duplicate chunk types to go undetected. - Fixed some timestamps in the -config version - Rearranged order of processing of color types in png_handle_tRNS(). - Added ROWBYTES macro to calculate rowbytes without integer overflow. - Updated makefile.darwin and removed makefile.macosx from scripts directory. - Imposed default one million column, one-million row limits on the image - dimensions, and added png_set_user_limits() function to override them. - Revised use of PNG_SET_USER_LIMITS_SUPPORTED macro. - Fixed wrong cast of returns from png_get_user_width|height_max(). - Changed some "keep the compiler happy" from empty statements to returns, - Revised libpng.txt to remove 1.2.x stuff from the 1.0.x distribution -version 1.0.16rc2 and 1.2.6rc2 [August 7, 2004] - Revised makefile.darwin and makefile.solaris. Removed makefile.macosx. - Revised pngtest's png_debug_malloc() to use png_malloc() instead of - png_malloc_default() which is not supposed to be exported. - Fixed off-by-one error in one of the conversions to PNG_ROWBYTES() in - pngpread.c. Bug was introduced in 1.2.6rc1. - Fixed bug in RGB to RGBX transformation introduced in 1.2.6rc1. - Fixed old bug in RGB to Gray transformation. - Fixed problem with 64-bit compilers by casting arguments to abs() - to png_int_32. - Changed "ln -sf" to "ln -f -s" in three makefiles (solaris, sco, so9). - Changed "HANDLE_CHUNK_*" to "PNG_HANDLE_CHUNK_*" (Cosmin) - Added "-@/bin/rm -f $(DL)/$(LIBNAME).so.$(PNGMAJ)" to 15 *NIX makefiles. - Added code to update the row_info->colortype in png_do_read_filler() (MSB). -version 1.0.16rc3 and 1.2.6rc3 [August 9, 2004] - Eliminated use of "abs()" in testing cHRM and gAMA values, to avoid - trouble with some 64-bit compilers. Created PNG_OUT_OF_RANGE() macro. - Revised documentation of png_set_keep_unknown_chunks(). - Check handle_as_unknown status in pngpread.c, as in pngread.c previously. - Moved "PNG_HANDLE_CHUNK_*" macros out of PNG_INTERNAL section of png.h - Added "rim" definitions for CONST4 and CONST6 in pnggccrd.c -version 1.0.16rc4 and 1.2.6rc4 [August 10, 2004] - Fixed mistake in pngtest.c introduced in 1.2.6rc2 (declaration of - "pinfo" was out of place). -version 1.0.16rc5 and 1.2.6rc5 [August 10, 2004] - Moved "PNG_HANDLE_CHUNK_*" macros out of PNG_ASSEMBLER_CODE_SUPPORTED - section of png.h where they were inadvertently placed in version rc3. - -version 1.2.6 and 1.0.16 [August 15, 2004] - Revised pngtest so memory allocation testing is only done when PNG_DEBUG==1. -version 1.2.7beta1 [August 26, 2004] - Removed unused pngasmrd.h file. - Removed references to uu.net for archived files. Added references to - PNG Spec (second edition) and the PNG ISO/IEC Standard. - Added "test-dd" target in 15 makefiles, to run pngtest in DESTDIR. - Fixed bug with "optimized window size" in the IDAT datastream, that - causes libpng to write PNG files with incorrect zlib header bytes. -version 1.2.7beta2 [August 28, 2004] - Fixed bug with sCAL chunk and big-endian machines (David Munro). - Undid new code added in 1.2.6rc2 to update the color_type in - png_set_filler(). - Added png_set_add_alpha() that updates color type. -version 1.0.17rc1 and 1.2.7rc1 [September 4, 2004] - Revised png_set_strip_filler() to not remove alpha if color_type has alpha. - -version 1.2.7 and 1.0.17 [September 12, 2004] - Added makefile.hp64 - Changed projects/msvc/png32ms.def to scripts/png32ms.def in makefile.cygwin -version 1.2.8beta1 [November 1, 2004] - Fixed bug in png_text_compress() that would fail to complete a large block. - Fixed bug, introduced in libpng-1.2.7, that overruns a buffer during - strip alpha operation in png_do_strip_filler(). - Added PNG_1_2_X definition in pngconf.h - #ifdef out png_info_init in png.c and png_read_init in pngread.c (as of 1.3.0) -version 1.2.8beta2 [November 2, 2004] - Reduce color_type to a nonalpha type after strip alpha operation in - png_do_strip_filler(). -version 1.2.8beta3 [November 3, 2004] - Revised definitions of PNG_MAX_UINT_32, PNG_MAX_SIZE, and PNG_MAXSUM -version 1.2.8beta4 [November 12, 2004] - Fixed (again) definition of PNG_LIBPNG_VER_DLLNUM in png.h (Cosmin). - Added PNG_LIBPNG_BUILD_PRIVATE in png.h (Cosmin). - Set png_ptr->zstream.data_type to Z_BINARY, to avoid unnecessary detection - of data type in deflate (Cosmin). - Deprecated but continue to support SPECIALBUILD and PRIVATEBUILD in favor of - PNG_LIBPNG_BUILD_SPECIAL_STRING and PNG_LIBPNG_BUILD_PRIVATE_STRING. -version 1.2.8beta5 [November 20, 2004] - Use png_ptr->flags instead of png_ptr->transformations to pass - PNG_STRIP_ALPHA info to png_do_strip_filler(), to preserve ABI - compatibility. - Revised handling of SPECIALBUILD, PRIVATEBUILD, - PNG_LIBPNG_BUILD_SPECIAL_STRING and PNG_LIBPNG_BUILD_PRIVATE_STRING. -version 1.2.8rc1 [November 24, 2004] - Moved handling of BUILD macros from pngconf.h to png.h - Added definition of PNG_LIBPNG_BASE_TYPE in png.h, inadvertently - omitted from beta5. - Revised scripts/pngw32.rc - Despammed mailing addresses by masking "@" with "at". - Inadvertently installed a supposedly faster test version of pngrutil.c -version 1.2.8rc2 [November 26, 2004] - Added two missing "\" in png.h - Change tests in pngread.c and pngpread.c to - if (png_ptr->transformations || (png_ptr->flags&PNG_FLAG_STRIP_ALPHA)) - png_do_read_transformations(png_ptr); -version 1.2.8rc3 [November 28, 2004] - Reverted pngrutil.c to version libpng-1.2.8beta5. - Added scripts/makefile.elf with supporting code in pngconf.h for symbol - versioning (John Bowler). -version 1.2.8rc4 [November 29, 2004] - Added projects/visualc7 (Simon-pierre). -version 1.2.8rc5 [November 29, 2004] - Fixed new typo in scripts/pngw32.rc - -version 1.2.8 [December 3, 2004] - Removed projects/visualc7, added projects/visualc71. - -version 1.2.9beta1 [February 21, 2006] - - Initialized some structure members in pngwutil.c to avoid gcc-4.0.0 complaints - Revised man page and libpng.txt to make it clear that one should not call - png_read_end or png_write_end after png_read_png or png_write_png. - Updated references to png-mng-implement mailing list. - Fixed an incorrect typecast in pngrutil.c - Added PNG_NO_READ_SUPPORTED conditional for making a write-only library. - Added PNG_NO_WRITE_INTERLACING_SUPPORTED conditional. - Optimized alpha-inversion loops in pngwtran.c - Moved test for nonzero gamma outside of png_build_gamma_table() in pngrtran.c - Make sure num_trans is <= 256 before copying data in png_set_tRNS(). - Make sure num_palette is <= 256 before copying data in png_set_PLTE(). - Interchanged order of write_swap_alpha and write_invert_alpha transforms. - Added parentheses in the definition of PNG_LIBPNG_BUILD_TYPE (Cosmin). - Optimized zlib window flag (CINFO) in contrib/pngsuite/*.png (Cosmin). - Updated scripts/makefile.bc32 for Borland C++ 5.6 (Cosmin). - Exported png_get_uint_32, png_save_uint_32, png_get_uint_16, png_save_uint_16, - png_get_int_32, png_save_int_32, png_get_uint_31 (Cosmin). - Added type cast (png_byte) in png_write_sCAL() (Cosmin). - Fixed scripts/makefile.cygwin (Christian Biesinger, Cosmin). - Default iTXt support was inadvertently enabled. - -version 1.2.9beta2 [February 21, 2006] - - Check for png_rgb_to_gray and png_gray_to_rgb read transformations before - checking for png_read_dither in pngrtran.c - Revised checking of chromaticity limits to accommodate extended RGB - colorspace (John Denker). - Changed line endings in some of the project files to CRLF, even in the - "Unix" tar distributions (Cosmin). - Made png_get_int_32 and png_save_int_32 always available (Cosmin). - Updated scripts/pngos2.def, scripts/pngw32.def and projects/wince/png32ce.def - with the newly exported functions. - Eliminated distributions without the "configure" script. - Updated INSTALL instructions. - -version 1.2.9beta3 [February 24, 2006] - - Fixed CRCRLF line endings in contrib/visupng/VisualPng.dsp - Made libpng.pc respect EXEC_PREFIX (D. P. Kreil, J. Bowler) - Removed reference to pngasmrd.h from Makefile.am - Renamed CHANGES to ChangeLog. - Renamed LICENSE to COPYING. - Renamed ANNOUNCE to NEWS. - Created AUTHORS file. - -version 1.2.9beta4 [March 3, 2006] - - Changed definition of PKGCONFIG from $prefix/lib to $libdir in configure.ac - Reverted to filenames LICENSE and ANNOUNCE; removed AUTHORS and COPYING. - Removed newline from the end of some error and warning messages. - Removed test for sqrt() from configure.ac and configure. - Made swap tables in pngtrans.c PNG_CONST (Carlo Bramix). - Disabled default iTXt support that was inadvertently enabled in - libpng-1.2.9beta1. - Added "OS2" to list of systems that don't need underscores, in pnggccrd.c - Removed libpng version and date from *.c files. - -version 1.2.9beta5 [March 4, 2006] - Removed trailing blanks from source files. - Put version and date of latest change in each source file, and changed - copyright year accordingly. - More cleanup of configure.ac, Makefile.ac, and associated scripts. - Restored scripts/makefile.elf which was inadvertently deleted. - -version 1.2.9beta6 [March 6, 2006] - Fixed typo (RELEASE) in configuration files. - -version 1.2.9beta7 [March 7, 2006] - Removed libpng.vers and libpng.sym from libpng12_la_SOURCES in Makefile.am - Fixed inconsistent #ifdef's around png_sig_bytes() and png_set_sCAL_s() - in png.h. - Updated makefile.elf as suggested by debian. - Made cosmetic changes to some makefiles, adding LN_SF and other macros. - Made some makefiles accept "exec_prefix". - -version 1.2.9beta8 [March 9, 2006] - Fixed some "#if defined (..." which should be "#if defined(..." - Bug introduced in libpng-1.2.8. - Fixed inconsistency in definition of png_default_read_data() - Restored blank that was lost from makefile.sggcc "clean" target in beta7. - Revised calculation of "current" and "major" for irix in ltmain.sh - Changed "mkdir" to "MKDIR_P" in some makefiles. - Separated PNG_EXPAND and PNG_EXPAND_tRNS. - Added png_set_expand_gray_1_2_4_to_8() and deprecated - png_set_gray_1_2_4_to_8() which also expands tRNS to alpha. - -version 1.2.9beta9 [March 10, 2006] - Include "config.h" in pngconf.h when available. - Added some checks for NULL png_ptr or NULL info_ptr (timeless) - -version 1.2.9beta10 [March 20, 2006] - Removed extra CR from contrib/visualpng/VisualPng.dsw (Cosmin) - Made pnggccrd.c PIC-compliant (Christian Aichinger). - Added makefile.mingw (Wolfgang Glas). - Revised pngconf.h MMX checking. - -version 1.2.9beta11 [March 22, 2006] - Fixed out-of-order declaration in pngwrite.c that was introduced in beta9 - Simplified some makefiles by using LIBSO, LIBSOMAJ, and LIBSOVER macros. - -version 1.2.9rc1 [March 31, 2006] - Defined PNG_USER_PRIVATEBUILD when including "pngusr.h" (Cosmin). - Removed nonsensical assertion check from pngtest.c (Cosmin). - -version 1.2.9 [April 14, 2006] - Revised makefile.beos and added "none" selector in ltmain.sh - -version 1.2.10beta1 [April 15, 2006] - Renamed "config.h" to "png_conf.h" and revised Makefile.am to add - -DPNG_BUILDING_LIBPNG to compile directive, and modified pngconf.h - to include png_conf.h only when PNG_BUILDING_LIBPNG is defined. - -version 1.2.10beta2 [April 15, 2006] - Manually updated Makefile.in and configure. Changed png_conf.h.in - back to config.h. - -version 1.2.10beta3 [April 15, 2006] - Change png_conf.h back to config.h in pngconf.h. - -version 1.2.10beta4 [April 16, 2006] - Change PNG_BUILDING_LIBPNG to PNG_CONFIGURE_LIBPNG in config/Makefile*. - -version 1.2.10beta5 [April 16, 2006] - Added a configure check for compiling assembler code in pnggccrd.c - -version 1.2.10beta6 [April 17, 2006] - Revised the configure check for pnggccrd.c - Moved -DPNG_CONFIGURE_LIBPNG into @LIBPNG_DEFINES@ - Added @LIBPNG_DEFINES@ to arguments when building libpng.sym - -version 1.2.10beta7 [April 18, 2006] - Change "exec_prefix=$prefix" to "exec_prefix=$(prefix)" in makefiles. - -version 1.2.10rc1 [April 19, 2006] - Ensure pngconf.h doesn't define both PNG_USE_PNGGCCRD and PNG_USE_PNGVCRD - Fixed "LN_FS" typo in makefile.sco and makefile.solaris. - -version 1.2.10rc2 [April 20, 2006] - Added a backslash between -DPNG_CONFIGURE_LIBPNG and -DPNG_NO_ASSEMBLER_CODE - in configure.ac and configure - Made the configure warning about versioned symbols less arrogant. - -version 1.2.10rc3 [April 21, 2006] - Added a note in libpng.txt that png_set_sig_bytes(8) can be used when - writing an embedded PNG without the 8-byte signature. - Revised makefiles and configure to avoid making links to libpng.so.* - -version 1.2.10 [April 23, 2006] - Reverted configure to "rc2" state. - -version 1.2.11beta1 [May 31, 2006] - scripts/libpng.pc.in contained "configure" style version info and would - not work with makefiles. - The shared-library makefiles were linking to libpng.so.0 instead of - libpng.so.3 compatibility as the library. - -version 1.2.11beta2 [June 2, 2006] - Increased sprintf buffer from 50 to 52 chars in pngrutil.c to avoid - buffer overflow. - Fixed bug in example.c (png_set_palette_rgb -> png_set_palette_to_rgb) - -version 1.2.11beta3 [June 5, 2006] - Prepended "#! /bin/sh" to ltmail.sh and contrib/pngminus/*.sh (Cosmin). - Removed the accidental leftover Makefile.in~ (Cosmin). - Avoided potential buffer overflow and optimized buffer in - png_write_sCAL(), png_write_sCAL_s() (Cosmin). - Removed the include directories and libraries from CFLAGS and LDFLAGS - in scripts/makefile.gcc (Nelson A. de Oliveira, Cosmin). - -version 1.2.11beta4 [June 6, 2006] - Allow zero-length IDAT chunks after the entire zlib datastream, but not - after another intervening chunk type. - -version 1.0.19rc1, 1.2.11rc1 [June 13, 2006] - Deleted extraneous square brackets from [config.h] in configure.ac - -version 1.0.19rc2, 1.2.11rc2 [June 14, 2006] - Added prototypes for PNG_INCH_CONVERSIONS functions to png.h - Revised INSTALL and autogen.sh - Fixed typo in several makefiles (-W1 should be -Wl) - Added typedef for png_int_32 and png_uint_32 on 64-bit systems. - -version 1.0.19rc3, 1.2.11rc3 [June 15, 2006] - Removed the new typedefs for 64-bit systems (delay until version 1.4.0) - Added one zero element to png_gamma_shift[] array in pngrtran.c to avoid - reading out of bounds. - -version 1.0.19rc4, 1.2.11rc4 [June 15, 2006] - Really removed the new typedefs for 64-bit systems. - -version 1.0.19rc5, 1.2.11rc5 [June 22, 2006] - Removed png_sig_bytes entry from scripts/pngw32.def - -version 1.0.19, 1.2.11 [June 26, 2006] - None. - -version 1.0.20, 1.2.12 [June 27, 2006] - Really increased sprintf buffer from 50 to 52 chars in pngrutil.c to avoid - buffer overflow. - -version 1.2.13beta1 [October 2, 2006] - Removed AC_FUNC_MALLOC from configure.ac - Work around Intel-Mac compiler bug by setting PNG_NO_MMX_CODE in pngconf.h - Change "logical" to "bitwise" throughout documentation. - Detect and fix attempt to write wrong iCCP profile length. - -version 1.0.21, 1.2.13 [November 14, 2006] - Fix potential buffer overflow in sPLT chunk handler. - Fix Makefile.am to not try to link to noexistent files. - Check all exported functions for NULL png_ptr. - -version 1.2.14beta1 [November 17, 2006] - Relocated three misplaced tests for NULL png_ptr. - Built Makefile.in with automake-1.9.6 instead of 1.9.2. - Build configure with autoconf-2.60 instead of 2.59 - -version 1.2.14beta2 [November 17, 2006] - Added some typecasts in png_zalloc(). - -version 1.2.14rc1 [November 20, 2006] - Changed "strtod" to "png_strtod" in pngrutil.c - -version 1.0.22, 1.2.14 [November 27, 2006] - Added missing "$(srcdir)" in Makefile.am and Makefile.in - -version 1.2.15beta1 [December 3, 2006] - Generated configure with autoconf-2.61 instead of 2.60 - Revised configure.ac to update libpng.pc and libpng-config. - -version 1.2.15beta2 [December 3, 2006] - Always export MMX asm functions, just stubs if not building pnggccrd.c - -version 1.2.15beta3 [December 4, 2006] - Add "png_bytep" typecast to profile while calculating length in pngwutil.c - -version 1.2.15beta4 [December 7, 2006] - Added scripts/CMakeLists.txt - Changed PNG_NO_ASSEMBLER_CODE to PNG_NO_MMX_CODE in scripts, like 1.4.0beta - -version 1.2.15beta5 [December 7, 2006] - Changed some instances of PNG_ASSEMBLER_* to PNG_MMX_* in pnggccrd.c - Revised scripts/CMakeLists.txt - -version 1.2.15beta6 [December 13, 2006] - Revised scripts/CMakeLists.txt and configure.ac - -version 1.2.15rc1 [December 18, 2006] - Revised scripts/CMakeLists.txt - -version 1.2.15rc2 [December 21, 2006] - Added conditional #undef jmpbuf in pngtest.c to undo #define in AIX headers. - Added scripts/makefile.nommx - -version 1.2.15rc3 [December 25, 2006] - Fixed shared library numbering error that was introduced in 1.2.15beta6. - -version 1.2.15rc4 [December 27, 2006] - Fixed handling of rgb_to_gray when png_ptr->color.gray isn't set. - -version 1.2.15rc5 [December 31, 2006] - Revised handling of rgb_to_gray. - -version 1.0.23, 1.2.15 [January 5, 2007] - Added some (unsigned long) typecasts in pngtest.c to avoid printing errors. - -version 1.2.16beta1 [January 6, 2007] - Fix bugs in makefile.nommx - -version 1.2.16beta2 [January 16, 2007] - Revised scripts/CMakeLists.txt - -version 1.0.24, 1.2.16 [January 31, 2007] - No changes. - -version 1.2.17beta1 [March 6, 2007] - Revised scripts/CMakeLists.txt to install both shared and static libraries. - Deleted a redundant line from pngset.c. - -version 1.2.17beta2 [April 26, 2007] - Relocated misplaced test for png_ptr == NULL in pngpread.c - Change "==" to "&" for testing PNG_RGB_TO_GRAY_ERR & PNG_RGB_TO_GRAY_WARN - flags. - Changed remaining instances of PNG_ASSEMBLER_* to PNG_MMX_* - Added pngerror() when write_IHDR fails in deflateInit2(). - Added "const" to some array declarations. - Mention examples of libpng usage in the libpng*.txt and libpng.3 documents. - -version 1.2.17rc1 [May 4, 2007] - No changes. - -version 1.2.17rc2 [May 8, 2007] - Moved several PNG_HAVE_* macros out of PNG_INTERNAL because applications - calling set_unknown_chunk_location() need them. - Changed transformation flag from PNG_EXPAND_tRNS to PNG_EXPAND in - png_set_expand_gray_1_2_4_to_8(). - Added png_ptr->unknown_chunk to hold working unknown chunk data, so it - can be free'ed in case of error. Revised unknown chunk handling in - pngrutil.c and pngpread.c to use this structure. - -version 1.2.17rc3 [May 8, 2007] - Revised symbol-handling in configure script. - -version 1.2.17rc4 [May 10, 2007] - Revised unknown chunk handling to avoid storing unknown critical chunks. - -version 1.0.25 [May 15, 2007] -version 1.2.17 [May 15, 2007] - Added "png_ptr->num_trans=0" before error return in png_handle_tRNS, - to eliminate a vulnerability (CVE-2007-2445, CERT VU#684664) - -version 1.0.26 [May 15, 2007] -version 1.2.18 [May 15, 2007] - Reverted the libpng-1.2.17rc3 change to symbol-handling in configure script - -version 1.2.19beta1 [May 18, 2007] - Changed "const static" to "static PNG_CONST" everywhere, mostly undoing - change of libpng-1.2.17beta2. Changed other "const" to "PNG_CONST" - Changed some handling of unused parameters, to avoid compiler warnings. - "if (unused == NULL) return;" becomes "unused = unused". - -version 1.2.19beta2 [May 18, 2007] - Only use the valid bits of tRNS value in png_do_expand() (Brian Cartier) - -version 1.2.19beta3 [May 19, 2007] - Add some "png_byte" typecasts in png_check_keyword() and write new_key - instead of key in zTXt chunk (Kevin Ryde). - -version 1.2.19beta4 [May 21, 2007] - Add png_snprintf() function and use it in place of sprint() for improved - defense against buffer overflows. - -version 1.2.19beta5 [May 21, 2007] - Fixed png_handle_tRNS() to only use the valid bits of tRNS value. - Changed handling of more unused parameters, to avoid compiler warnings. - Removed some PNG_CONST in pngwutil.c to avoid compiler warnings. - -version 1.2.19beta6 [May 22, 2007] - Added some #ifdef PNG_MMX_CODE_SUPPORTED where needed in pngvcrd.c - Added a special "_MSC_VER" case that defines png_snprintf to _snprintf - -version 1.2.19beta7 [May 22, 2007] - Squelched png_squelch_warnings() in pnggccrd.c and added an - #ifdef PNG_MMX_CODE_SUPPORTED block around the declarations that caused - the warnings that png_squelch_warnings was squelching. - -version 1.2.19beta8 [May 22, 2007] - Removed __MMX__ from test in pngconf.h. - -version 1.2.19beta9 [May 23, 2007] - Made png_squelch_warnings() available via PNG_SQUELCH_WARNINGS macro. - Revised png_squelch_warnings() so it might work. - Updated makefile.sgcc and makefile.solaris; added makefile.solaris-x86. - -version 1.2.19beta10 [May 24, 2007] - Resquelched png_squelch_warnings(), use "__attribute__((used))" instead. - -version 1.2.19beta11 [May 28, 2007] - Return 0 from png_get_sPLT() and png_get_unknown_chunks() if png_ptr is NULL; - changed three remaining instances of png_strcpy() to png_strncpy() (David - Hill). - Make test for NULL row_buf at the beginning of png_do_read_transformations - unconditional. - -version 1.2.19beta12 [May 28, 2007] - Revised pnggccrd.c. - -version 1.2.19beta13 [June 14, 2007] - Prefer PNG_USE_PNGVCRD when _MSC_VER is defined in pngconf.h - -version 1.2.19beta14 [June 16, 2007] - Fix bug with handling of 16-bit transparency, introduced in 1.2.19beta2 - -version 1.2.19beta15 [June 17, 2007] - Revised pnggccrd.c. - -version 1.2.19beta16 [June 18, 2007] - Revised pnggccrd.c again. - Updated contrib/gregbook. - Changed '#include "pnggccrd.c"' to 'include "$srcdir/pnggccrd.c"' - in configure.ac - -version 1.2.19beta17 [June 19, 2007] - Revised many of the makefiles, to set -DPNG_NO_MMX_CODE where needed - and to not use -O3 unless -DPNG_NO_MMX_CODE is also set. - -version 1.2.19beta18 [June 23, 2007] - Replaced some C++ style comments with C style comments in pnggccrd.c. - Copied optimized C code from pnggccrd.c to pngrutil.c, removed dependency - on pnggccrd.o from many makefiles. - Added sl and dylib to list of extensions be installed by Makefile.am - -version 1.2.19beta19 [June 28, 2007] - Fixed testing PNG_RGB_TO_GRAY_ERR & PNG_RGB_TO_GRAY_WARN in pngrtran.c - More cleanup of pnggccrd.c and pngvcrd.c - -version 1.2.19beta20 [June 29, 2007] - Rebuilt Makefile.in and configure using libtool-1.5.24. - Fixed typo in pnggccrd.c - -version 1.2.19beta21 [June 30, 2007] - More revision of pnggccrd.c - Added "test" target to Makefile.in and Makefile.am - -version 1.2.19beta22 [July 3, 2007] - Added info about pngrutil/pnggccrd/pngvcrd to png_get_header_version() - Fix type definition of dummy_value_a, b in pnggccrd.c - -version 1.2.19beta23 [July 10, 2007] - Revert change to type definition of dummy_value_a, b in pnggccrd.c - Make sure __PIC__ is defined in pnggccrd.c when PIC is defined. - Require gcc-4.1 or better to use PNG_HAVE_MMX_FILTER_ROW on x86_64 platforms - -version 1.2.19beta24 [July 14, 2007] - Added PNG_NO_READ_FILTER, PNG_NO_WRITE_FILTER, PNG_NO_WARNING macros. - Added contrib/pngminim to demonstrate building minimal encoder and decoder - -version 1.2.19beta25 [July 15, 2007] - Removed the new PNG_NO_READ_FILTER macro since it would make the library - unable to read valid PNG files, and filtering is at the heart of the - PNG format. - -version 1.2.19beta26 [July 16, 2007] - Changed "png_free(str)" to "png_free(png_ptr,str)" in pngrutil.c WinCE - code (Yves Piguet). This bug was introduced in libpng-1.2.14. - Updated scripts/CMakeLists.txt - Relocated a misplaced #endif in pnggccrd.c - -version 1.2.19beta27 [July 17, 2007] - Fixed incorrect stride and number of bytes copied (was 4 instead of - 6 bytes) in the cleanup loop of pnggccrd.c and pngvcrd.c for handling - the end of 48-bit interlaced rows (Glenn R-P). - -version 1.2.19beta28 [July 19, 2007] - Removed requirement for gcc-4.1 or better to use PNG_HAVE_MMX_FILTER_ROW - on x86_64 platforms - Added png_warning() in pngrutil.c for short iCCP, iTXt, sPLT, or zTXT chunks. - Revised pngtest.c so warnings are displayed regardless of PNG_NO_STDIO. - -version 1.2.19beta29 [July 20, 2007] - Fix typo in pnggccrd.c (%%eax should be %%ax in secondloop48) - -version 1.2.19beta30 [July 26, 2007] - Revised pnggccrd.c - -version 1.2.19beta31 [July 27, 2007] - Fix typos in pnggccrd.c - -version 1.0.27rc1 and 1.2.19rc1 [July 31, 2007] - Disable PNG_MMX_CODE_SUPPORTED when PNG_ASSEMBLER_CODE_SUPPORTED is off. - Enable PNG_MMX_READ_FILTER_* by default, except when gcc-3.x is being - used (they were inadvertently disabled in libpng-1.2.19beta23). - Fix some debugging statements in pnggccrd.c and pngrutil.c - Added information about disabling the MMX code in libpng documentation. - -version 1.0.27rc2 and 1.2.19rc2 [August 4, 2007] - Removed some "#if 0" blocks. - Made a global struct local in pngvcrd.c to make it thread safe. - Issue a png_error() if application attempts to transform a row tht - has not been initialized. - -version 1.0.27rc3 and 1.2.19rc3 [August 9, 2007] - Slightly revised pngvcrd.c - -version 1.0.27rc4 and 1.2.19rc4 [August 9, 2007] - Revised pnggccrd.c debugging change of rc1, which was broken. - Revised scripts/CMakeLists.txt - Change default to PNG_NO_GLOBAL_ARRAYS for MSVC. - Turn off PNG_FLAG_ROW_INIT flag when setting transforms that expand pixels. - -version 1.0.27rc5 and 1.2.19rc5 [August 10, 2007] - Fix typo (missing '"') in pnggccrd.c - Revise handling of png_strtod in recent versions of WINCE - -version 1.0.27rc6 and 1.2.19rc6 [August 15, 2007] - Fix typo (missing ',') in contrib/gregbook/readpng2.c - Undid row initialization error exit added to rc2 and rc4. - -version 1.0.27 and 1.2.19 [August 18, 2007] - Conditionally restored row initialization error exit. - -version 1.2.20beta01 [August 19, 2007] - Fixed problem with compiling pnggccrd.c on Intel-Apple platforms. - Changed png_malloc() to png_malloc_warn() in png_set_sPLT(). - Added PNG_NO_ERROR_TEXT feature, with demo in contrib/pngminim - Removed define PNG_WARN_UNINITIALIZED_ROW 1 /* 0: warning; 1: error */ - because it caused some trouble. - -version 1.2.20beta02 [August 20, 2007] - Avoid compiling pnggccrd.c on Intel-Apple platforms. - -version 1.2.20beta03 [August 20, 2007] - Added "/D PNG_NO_MMX_CODE" to the non-mmx builds of projects/visualc6 - and visualc71. - -version 1.2.20beta04 [August 21, 2007] - Revised pngvcrd.c for improved efficiency (Steve Snyder). - -version 1.2.20rc1 [August 23, 2007] - Revised pngconf.h to set PNG_NO_MMX_CODE for gcc-3.x compilers. - -version 1.2.20rc2 [August 27, 2007] - Revised scripts/CMakeLists.txt - Revised #ifdefs to ensure one and only one of pnggccrd.c, pngvcrd.c, - or part of pngrutil.c is selected. - -version 1.2.20rc3 [August 30, 2007] - Remove a little more code in pngwutil.c when PNG_NO_WRITE_FILTER is selected. - Added /D _CRT_SECURE_NO_WARNINGS to visual6c and visualc71 projects. - Compile png_mmx_support() in png.c even when PNG_NO_MMX_CODE is defined. - Restored a "superfluous" #ifdef that was removed from 1.2.20rc2 pnggccrd.c, - breaking the png_mmx_support() function. - -version 1.2.20rc4 [September 1, 2007] - Removed Intel contributions (MMX, Optimized C). - -version 1.2.20rc5 [September 2, 2007] - Restored configure and Makefile.in to rc3 and put a snippet of code in - pnggccrd.c, to ensure configure makes the same PNG_NO_MMX_CODE selection - -version 1.2.20rc6 [September 2, 2007] - Fixed bugs in scripts/CMakeLists.txt - Removed pngvcrd.c references from msvc projects. - -version 1.0.28 and 1.2.20 [September 8, 2007] - Removed "(NO READ SUPPORT)" from png_get_header_version() string. - -version 1.2.21beta1 [September 14, 2007] - Fixed various mistakes reported by George Cook and Jeff Phillips: - logical vs bitwise NOT in pngrtran.c, bug introduced in 1.2.19rc2 - 16-bit cheap transparency expansion, bug introduced in 1.2.19beta2 - errors with sizeof(unknown_chunk.name), bugs introduced in 1.2.19beta11 - <= compare with unsigned var in pngset.c, should be ==. - -version 1.2.21beta2 [September 18, 2007] - Removed some extraneous typecasts. - -version 1.2.21rc1 [September 25, 2007] - Fixed potential out-of-bounds reads in png_handle_pCAL() and - png_handle_ztXt() ("flayer" results reported by Tavis Ormandy). - -version 1.2.21rc2 [September 26, 2007] - Fixed potential out-of-bounds reads in png_handle_sCAL(), - png_handle_iTXt(), and png_push_read_tEXt(). - Remove some PNG_CONST declarations from pngwutil.c to avoid compiler warnings - Revised makefiles to update paths in libpng.pc properly. - -version 1.2.21rc3 [September 27, 2007] - Revised makefiles to update "Libs" in libpng.pc properly. - -version 1.0.29 and 1.2.21rc3 [October 4, 2007] - No changes. - -version 1.2.22beta1 [October 4, 2007] - Again, fixed logical vs bitwise NOT in pngrtran.c, bug introduced - in 1.2.19rc2 - -version 1.2.22beta2 [October 5, 2007] - Fixed string length error in pngset.c (caused crashes while decoding iCCP) - Add terminating NULL after each instance of png_strncpy(). - -version 1.2.22beta3 [October 6, 2007] - Fix two off-by-one terminating NULL after png_strncpy(). - -version 1.2.22beta4 [October 7, 2007] - Changed some 0 to '\0'. - -version 1.0.30rc1 and 1.2.22rc1 [October 8, 2007] - No changes. - -version 1.0.30 and 1.2.22 [October 13, 2007] - No changes. - -version 1.2.23beta01 [October 15, 2007] - Reduced number of invocations of png_strlen() in pngset.c. - Changed [azAZ09_] to [_abcde...89] in Makefile.am for better localization. - -version 1.2.23beta02 [October 16, 2007] - Eliminated png_strncpy() and png_strcpy() (Pierre Poissinger) - Changed $AN to $(AN) in Makefile.am. - -version 1.2.23beta03 [October 16, 2007] - Fixed off-by-one error in pngset.c - Restore statement to set last character of buffer to \0 in pngerror.c - -version 1.2.23beta04 [October 23, 2007] - Reject attempt to set all-zero cHRM values. - -version 1.2.23beta05 [October 26, 2007] - Add missing quotes in projects/visualc6, lost in version 1.2.20rc3 - -version 1.2.23rc01 [November 2, 2007] - No changes. - -version 1.2.23 [November 6, 2007] - No changes. - -version 1.2.24beta01 [November 19, 2007] - Moved misplaced test for malloc failure in png_set_sPLT(). This bug was - introduced in libpng-1.2.20beta01. - Ifdef out avg_row etc from png.h and pngwrite.c when PNG_NO_WRITE_FILTER - Do not use png_ptr->free_fn and png_ptr->mem_fn in png_destroy_read_struct() - when png_ptr is NULL (Marshall Clow). - Updated handling of symbol prefixes in Makefile.am and configure.ac (Mike - Frysinger). - -version 1.2.24beta02 [November 30, 2007] - Removed a useless test and fixed incorrect test in png_set_cHRM_fixed() - (David Hill). - -version 1.2.24rc01 [December 7, 2007] - No changes. - -version 1.2.24 [December 14, 2007] - Make sure not to redefine _BSD_SOURCE in pngconf.h - Revised gather.sh and makefile.std in contrib/pngminim to avoid compiling - unused files. - -Send comments/corrections/commendations to png-mng-implement at lists.sf.net -(subscription required; visit -https://lists.sourceforge.net/lists/listinfo/png-mng-implement -to subscribe) -or to glennrp at users.sourceforge.net - -Glenn R-P diff --git a/src/3rdParty/CxImage/png/INSTALL b/src/3rdParty/CxImage/png/INSTALL deleted file mode 100644 index ff9c9f29ee..0000000000 --- a/src/3rdParty/CxImage/png/INSTALL +++ /dev/null @@ -1,219 +0,0 @@ - -Installing libpng version 1.2.24 - December 14, 2007 - -On Unix/Linux and similar systems, you can simply type - - ./configure [--prefix=/path] - make check - make install - -and ignore the rest of this document. - -If configure does not work on your system and you have a reasonably -up-to-date set of tools, running ./autogen.sh before running ./configure -may fix the problem. You can also run the individual commands in -autogen.sh with the --force option, if supported by your version of -the tools. If you run 'libtoolize --force', though, this will replace -the distributed, patched, version of ltmain.sh with an unpatched version -and your shared library builds may fail to produce libraries with the -correct version numbers. - -Instead, you can use one of the custom-built makefiles in the -"scripts" directory - - cp scripts/makefile.system makefile - make test - make install - -Or you can use one of the "projects" in the "projects" directory. - -If you want to use "cmake" (see www.cmake.org), copy CMakeLists.txt -from the "scripts" directory to this directory and type - - cmake . [-DPNG_MMX=YES] -DCMAKE_INSTALL_PREFIX=/path - make - make install - -Before installing libpng, you must first install zlib, if it -is not already on your system. zlib can usually be found -wherever you got libpng. zlib can be placed in another directory, -at the same level as libpng. - -If your system already has a preinstalled zlib you will still need -to have access to the zlib.h and zconf.h include files that -correspond to the version of zlib that's installed. - -You can rename the directories that you downloaded (they -might be called "libpng-1.2.24" or "lpng109" and "zlib-1.2.1" -or "zlib121") so that you have directories called "zlib" and "libpng". - -Your directory structure should look like this: - - .. (the parent directory) - libpng (this directory) - INSTALL (this file) - README - *.h - *.c - contrib - gregbook - pngminus - pngsuite - visupng - projects - beos - c5builder (Borland) - visualc6 (msvc) - netware.txt - wince.txt - scripts - makefile.* - pngtest.png - etc. - zlib - README - *.h - *.c - contrib - etc. - -If the line endings in the files look funny, you may wish to get the other -distribution of libpng. It is available in both tar.gz (UNIX style line -endings) and zip (DOS style line endings) formats. - -If you are building libpng with MSVC, you can enter the -libpng projects\visualc6 directory and follow the instructions in -projects\visualc6\README.txt. - -You can build libpng for WindowsCE by downloading and installing -the projects\wince directory as instructed in the projects\wince.txt file, and -then following the instructions in the README* files. Similarly, you can -build libpng for Netware or Beos as instructed in projects\netware.txt -or projects\beos. - -Else enter the zlib directory and follow the instructions in zlib/README, -then come back here and run "configure" or choose the appropriate -makefile.sys in the scripts directory. - -The files that are presently available in the scripts directory -include - - CMakeLists.txt => "cmake" script - makefile.std => Generic UNIX makefile (cc, creates static libpng.a) - makefile.elf => Linux/ELF makefile symbol versioning, - gcc, creates libpng12.so.0.1.2.24) - makefile.linux => Linux/ELF makefile - (gcc, creates libpng12.so.0.1.2.24) - makefile.gcc => Generic makefile (gcc, creates static libpng.a) - makefile.knr => Archaic UNIX Makefile that converts files with - ansi2knr (Requires ansi2knr.c from - ftp://ftp.cs.wisc.edu/ghost) - makefile.aix => AIX/gcc makefile - makefile.cygwin => Cygwin/gcc makefile - makefile.darwin => Darwin makefile, can use on MacosX - makefile.dec => DEC Alpha UNIX makefile - makefile.freebsd => FreeBSD makefile - makefile.hpgcc => HPUX makefile using gcc - makefile.hpux => HPUX (10.20 and 11.00) makefile - makefile.hp64 => HPUX (10.20 and 11.00) makefile, 64-bit - makefile.ibmc => IBM C/C++ version 3.x for Win32 and OS/2 (static) - makefile.intel => Intel C/C++ version 4.0 and later - libpng.icc => Project file for IBM VisualAge/C++ version 4.0 or later - makefile.netbsd => NetBSD/cc makefile, uses PNGGCCRD, makes libpng.so. - makefile.ne12bsd => NetBSD/cc makefile, uses PNGGCCRD, - makes libpng12.so - makefile.openbsd => OpenBSD makefile - makefile.sgi => Silicon Graphics IRIX makefile (cc, creates static lib) - makefile.sggcc => Silicon Graphics (gcc, - creates libpng12.so.0.1.2.24) - makefile.sunos => Sun makefile - makefile.solaris => Solaris 2.X makefile (gcc, - creates libpng12.so.0.1.2.24) - makefile.solaris-x86 => Solaris/intelMMX 2.X makefile (gcc, - creates libpng12.so.0.1.2.24) - makefile.so9 => Solaris 9 makefile (gcc, - creates libpng12.so.0.1.2.24) - makefile.32sunu => Sun Ultra 32-bit makefile - makefile.64sunu => Sun Ultra 64-bit makefile - makefile.sco => For SCO OSr5 ELF and Unixware 7 with Native cc - makefile.mips => MIPS makefile - makefile.acorn => Acorn makefile - makefile.amiga => Amiga makefile - smakefile.ppc => AMIGA smakefile for SAS C V6.58/7.00 PPC compiler - (Requires SCOPTIONS, copied from scripts/SCOPTIONS.ppc) - makefile.atari => Atari makefile - makefile.beos => BEOS makefile for X86 - makefile.bor => Borland makefile (uses bcc) - makefile.bc32 => 32-bit Borland C++ (all modules compiled in C mode) - makefile.tc3 => Turbo C 3.0 makefile - makefile.dj2 => DJGPP 2 makefile - makefile.msc => Microsoft C makefile - makefile.vcwin32 => makefile for Microsoft Visual C++ 4.0 and later - makefile.os2 => OS/2 Makefile (gcc and emx, requires pngos2.def) - pngos2.def => OS/2 module definition file used by makefile.os2 - makefile.watcom => Watcom 10a+ Makefile, 32-bit flat memory model - makevms.com => VMS build script - descrip.mms => VMS makefile for MMS or MMK - SCOPTIONS.ppc => Used with smakefile.ppc - -Copy the file (or files) that you need from the -scripts directory into this directory, for example - - MSDOS example: copy scripts\makefile.msc makefile - UNIX example: cp scripts/makefile.std makefile - -Read the makefile to see if you need to change any source or -target directories to match your preferences. - -Then read pngconf.h to see if you want to make any configuration -changes. - -Then just run "make" which will create the libpng library in -this directory and "make test" which will run a quick test that reads -the "pngtest.png" file and writes a "pngout.png" file that should be -identical to it. Look for "9782 zero samples" in the output of the -test. For more confidence, you can run another test by typing -"pngtest pngnow.png" and looking for "289 zero samples" in the output. -Also, you can run "pngtest -m contrib/pngsuite/*.png" and compare -your output with the result shown in contrib/pngsuite/README. - -Most of the makefiles will allow you to run "make install" to -put the library in its final resting place (if you want to -do that, run "make install" in the zlib directory first if necessary). -Some also allow you to run "make test-installed" after you have -run "make install". - -If you encounter a compiler error message complaining about the -lines - __png.h__ already includes setjmp.h; - __dont__ include it again.; -This means you have compiled another module that includes setjmp.h, -which is hazardous because the two modules might not include exactly -the same setjmp.h. If you are sure that you know what you are doing -and that they are exactly the same, then you can comment out or -delete the two lines. Better yet, use the cexcept interface -instead, as demonstrated in contrib/visupng of the libpng distribution. - -Further information can be found in the README and libpng.txt -files, in the individual makefiles, in png.h, and the manual pages -libpng.3 and png.5. - - -Using the ./configure script -- 16 December 2002. -================================================= - - -The ./configure script should work compatibly with what scripts/makefile.* -did, however there are some options you need to add to configure explicitly, -which previously was done semi-automatically (if you didn't edit -scripts/makefile.* yourself, that is) - - -CFLAGS="-Wall -O -funroll-loops \ --malign-loops=2 -malign-functions=2" ./configure --prefix=/usr/include \ ---with-pkgconfigdir=/usr/lib/pkgconfig --includedir=/usr/include - -You can alternatively specify --includedir=/usr/include, /usr/local/include, -/usr/include/png12, or whatever. - - diff --git a/src/3rdParty/CxImage/png/KNOWNBUG b/src/3rdParty/CxImage/png/KNOWNBUG deleted file mode 100644 index d39dd1ec31..0000000000 --- a/src/3rdParty/CxImage/png/KNOWNBUG +++ /dev/null @@ -1,22 +0,0 @@ - -Known bugs in libpng version 1.2.24 - -1. February 23, 2006: The custom makefiles don't build libpng with -lz. - - STATUS: This is a subject of debate. The change will probably be made - as a part of a major overhaul of the makefiles in libpng version 1.4.0. - -2. February 24, 2006: The Makefile generated by the "configure" script - fails to install symbolic links - libpng12.so => libpng12.so.0.1.2.9betaN - that are generated by the custom makefiles. - -3. September 4, 2007: There is a report that pngtest crashes on MacOS 10. - - STATUS: workarounds are - 1) Compile without optimization (crashes are observed with - -arch i386 and -O2 or -O3, using gcc-4.0.1). - 2) Compile pngtest.c with PNG_DEBUG defined (the bug goes away if - you try to look at it). - 3) Ignore the crash. The library itself seems to be OK. - diff --git a/src/3rdParty/CxImage/png/LICENSE b/src/3rdParty/CxImage/png/LICENSE deleted file mode 100644 index 6b81b55a63..0000000000 --- a/src/3rdParty/CxImage/png/LICENSE +++ /dev/null @@ -1,109 +0,0 @@ - -This copy of the libpng notices is provided for your convenience. In case of -any discrepancy between this copy and the notices in the file png.h that is -included in the libpng distribution, the latter shall prevail. - -COPYRIGHT NOTICE, DISCLAIMER, and LICENSE: - -If you modify libpng you may insert additional notices immediately following -this sentence. - -libpng versions 1.2.6, August 15, 2004, through 1.2.24, December 14, 2007, are -Copyright (c) 2004, 2006-2007 Glenn Randers-Pehrson, and are -distributed according to the same disclaimer and license as libpng-1.2.5 -with the following individual added to the list of Contributing Authors - - Cosmin Truta - -libpng versions 1.0.7, July 1, 2000, through 1.2.5 - October 3, 2002, are -Copyright (c) 2000-2002 Glenn Randers-Pehrson, and are -distributed according to the same disclaimer and license as libpng-1.0.6 -with the following individuals added to the list of Contributing Authors - - Simon-Pierre Cadieux - Eric S. Raymond - Gilles Vollant - -and with the following additions to the disclaimer: - - There is no warranty against interference with your enjoyment of the - library or against infringement. There is no warranty that our - efforts or the library will fulfill any of your particular purposes - or needs. This library is provided with all faults, and the entire - risk of satisfactory quality, performance, accuracy, and effort is with - the user. - -libpng versions 0.97, January 1998, through 1.0.6, March 20, 2000, are -Copyright (c) 1998, 1999 Glenn Randers-Pehrson, and are -distributed according to the same disclaimer and license as libpng-0.96, -with the following individuals added to the list of Contributing Authors: - - Tom Lane - Glenn Randers-Pehrson - Willem van Schaik - -libpng versions 0.89, June 1996, through 0.96, May 1997, are -Copyright (c) 1996, 1997 Andreas Dilger -Distributed according to the same disclaimer and license as libpng-0.88, -with the following individuals added to the list of Contributing Authors: - - John Bowler - Kevin Bracey - Sam Bushell - Magnus Holmgren - Greg Roelofs - Tom Tanner - -libpng versions 0.5, May 1995, through 0.88, January 1996, are -Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc. - -For the purposes of this copyright and license, "Contributing Authors" -is defined as the following set of individuals: - - Andreas Dilger - Dave Martindale - Guy Eric Schalnat - Paul Schmidt - Tim Wegner - -The PNG Reference Library is supplied "AS IS". The Contributing Authors -and Group 42, Inc. disclaim all warranties, expressed or implied, -including, without limitation, the warranties of merchantability and of -fitness for any purpose. The Contributing Authors and Group 42, Inc. -assume no liability for direct, indirect, incidental, special, exemplary, -or consequential damages, which may result from the use of the PNG -Reference Library, even if advised of the possibility of such damage. - -Permission is hereby granted to use, copy, modify, and distribute this -source code, or portions hereof, for any purpose, without fee, subject -to the following restrictions: - -1. The origin of this source code must not be misrepresented. - -2. Altered versions must be plainly marked as such and must not - be misrepresented as being the original source. - -3. This Copyright notice may not be removed or altered from any - source or altered source distribution. - -The Contributing Authors and Group 42, Inc. specifically permit, without -fee, and encourage the use of this source code as a component to -supporting the PNG file format in commercial products. If you use this -source code in a product, acknowledgment is not required but would be -appreciated. - - -A "png_get_copyright" function is available, for convenient use in "about" -boxes and the like: - - printf("%s",png_get_copyright(NULL)); - -Also, the PNG logo (in PNG format, of course) is supplied in the -files "pngbar.png" and "pngbar.jpg (88x31) and "pngnow.png" (98x31). - -Libpng is OSI Certified Open Source Software. OSI Certified Open Source is a -certification mark of the Open Source Initiative. - -Glenn Randers-Pehrson -glennrp at users.sourceforge.net -December 14, 2007 diff --git a/src/3rdParty/CxImage/png/README b/src/3rdParty/CxImage/png/README deleted file mode 100644 index 6f84c69f0d..0000000000 --- a/src/3rdParty/CxImage/png/README +++ /dev/null @@ -1,263 +0,0 @@ -README for libpng version 1.2.24 - December 14, 2007 (shared library 12.0) -See the note about version numbers near the top of png.h - -See INSTALL for instructions on how to install libpng. - -Libpng comes in several distribution formats. Get libpng-*.tar.gz -or libpng-*.tar.bz2 if you want UNIX-style line endings in the text -files, or lpng*.zip if you want DOS-style line endings. - -Version 0.89 was the first official release of libpng. Don't let the -fact that it's the first release fool you. The libpng library has been in -extensive use and testing since mid-1995. By late 1997 it had -finally gotten to the stage where there hadn't been significant -changes to the API in some time, and people have a bad feeling about -libraries with versions < 1.0. Version 1.0.0 was released in -March 1998. - -**** -Note that some of the changes to the png_info structure render this -version of the library binary incompatible with libpng-0.89 or -earlier versions if you are using a shared library. The type of the -"filler" parameter for png_set_filler() has changed from png_byte to -png_uint_32, which will affect shared-library applications that use -this function. - -To avoid problems with changes to the internals of png_info_struct, -new APIs have been made available in 0.95 to avoid direct application -access to info_ptr. These functions are the png_set_ and -png_get_ functions. These functions should be used when -accessing/storing the info_struct data, rather than manipulating it -directly, to avoid such problems in the future. - -It is important to note that the APIs do not make current programs -that access the info struct directly incompatible with the new -library. However, it is strongly suggested that new programs use -the new APIs (as shown in example.c and pngtest.c), and older programs -be converted to the new format, to facilitate upgrades in the future. -**** - -Additions since 0.90 include the ability to compile libpng as a -Windows DLL, and new APIs for accessing data in the info struct. -Experimental functions include the ability to set weighting and cost -factors for row filter selection, direct reads of integers from buffers -on big-endian processors that support misaligned data access, faster -methods of doing alpha composition, and more accurate 16->8 bit color -conversion. - -The additions since 0.89 include the ability to read from a PNG stream -which has had some (or all) of the signature bytes read by the calling -application. This also allows the reading of embedded PNG streams that -do not have the PNG file signature. As well, it is now possible to set -the library action on the detection of chunk CRC errors. It is possible -to set different actions based on whether the CRC error occurred in a -critical or an ancillary chunk. - -The changes made to the library, and bugs fixed are based on discussions -on the PNG-implement mailing list -and not on material submitted privately to Guy, Andreas, or Glenn. They will -forward any good suggestions to the list. - -For a detailed description on using libpng, read libpng.txt. For -examples of libpng in a program, see example.c and pngtest.c. For usage -information and restrictions (what little they are) on libpng, see -png.h. For a description on using zlib (the compression library used by -libpng) and zlib's restrictions, see zlib.h - -I have included a general makefile, as well as several machine and -compiler specific ones, but you may have to modify one for your own needs. - -You should use zlib 1.0.4 or later to run this, but it MAY work with -versions as old as zlib 0.95. Even so, there are bugs in older zlib -versions which can cause the output of invalid compression streams for -some images. You will definitely need zlib 1.0.4 or later if you are -taking advantage of the MS-DOS "far" structure allocation for the small -and medium memory models. You should also note that zlib is a -compression library that is useful for more things than just PNG files. -You can use zlib as a drop-in replacement for fread() and fwrite() if -you are so inclined. - -zlib should be available at the same place that libpng is, or at. -ftp://ftp.info-zip.org/pub/infozip/zlib - -You may also want a copy of the PNG specification. It is available -as an RFC, a W3C Recommendation, and an ISO/IEC Standard. You can find -these at http://www.libpng.org/pub/png/documents/ - -This code is currently being archived at libpng.sf.net in the -[DOWNLOAD] area, and on CompuServe, Lib 20 (PNG SUPPORT) -at GO GRAPHSUP. If you can't find it in any of those places, -e-mail me, and I'll help you find it. - -If you have any code changes, requests, problems, etc., please e-mail -them to me. Also, I'd appreciate any make files or project files, -and any modifications you needed to make to get libpng to compile, -along with a #define variable to tell what compiler/system you are on. -If you needed to add transformations to libpng, or wish libpng would -provide the image in a different way, drop me a note (and code, if -possible), so I can consider supporting the transformation. -Finally, if you get any warning messages when compiling libpng -(note: not zlib), and they are easy to fix, I'd appreciate the -fix. Please mention "libpng" somewhere in the subject line. Thanks. - -This release was created and will be supported by myself (of course -based in a large way on Guy's and Andreas' earlier work), and the PNG group. - -Send comments/corrections/commendations to png-mng-implement at lists.sf.net -(subscription required; visit -https://lists.sourceforge.net/lists/listinfo/png-mng-implement -to subscribe) or to glennrp at users.sourceforge.net - -You can't reach Guy, the original libpng author, at the addresses -given in previous versions of this document. He and Andreas will read mail -addressed to the png-implement list, however. - -Please do not send general questions about PNG. Send them to -the (png-mng-misc at lists.sourceforge.net, subscription required, visit -https://lists.sourceforge.net/lists/listinfo/png-mng-implement to subscribe) -On the other hand, -please do not send libpng questions to that address, send them to me -or to the png-implement list. I'll -get them in the end anyway. If you have a question about something -in the PNG specification that is related to using libpng, send it -to me. Send me any questions that start with "I was using libpng, -and ...". If in doubt, send questions to me. I'll bounce them -to others, if necessary. - -Please do not send suggestions on how to change PNG. We have -been discussing PNG for twelve years now, and it is official and -finished. If you have suggestions for libpng, however, I'll -gladly listen. Even if your suggestion is not used immediately, -it may be used later. - -Files in this distribution: - - ANNOUNCE => Announcement of this version, with recent changes - CHANGES => Description of changes between libpng versions - KNOWNBUG => List of known bugs and deficiencies - LICENSE => License to use and redistribute libpng - README => This file - TODO => Things not implemented in the current library - Y2KINFO => Statement of Y2K compliance - example.c => Example code for using libpng functions - libpng-*-*-diff.txt => Diff from previous release - libpng.3 => manual page for libpng (includes libpng.txt) - libpng.txt => Description of libpng and its functions - libpngpf.3 => manual page for libpng's private functions - png.5 => manual page for the PNG format - png.c => Basic interface functions common to library - png.h => Library function and interface declarations - pngconf.h => System specific library configuration - pngerror.c => Error/warning message I/O functions - pngget.c => Functions for retrieving info from struct - pngmem.c => Memory handling functions - pngbar.png => PNG logo, 88x31 - pngnow.png => PNG logo, 98x31 - pngpread.c => Progressive reading functions - pngread.c => Read data/helper high-level functions - pngrio.c => Lowest-level data read I/O functions - pngrtran.c => Read data transformation functions - pngrutil.c => Read data utility functions - pngset.c => Functions for storing data into the info_struct - pngtest.c => Library test program - pngtest.png => Library test sample image - pngtrans.c => Common data transformation functions - pngwio.c => Lowest-level write I/O functions - pngwrite.c => High-level write functions - pngwtran.c => Write data transformations - pngwutil.c => Write utility functions - contrib => Contributions - gregbook => source code for PNG reading and writing, from - Greg Roelofs' "PNG: The Definitive Guide", - O'Reilly, 1999 - msvctest => Builds and runs pngtest using a MSVC workspace - pngminus => Simple pnm2png and png2pnm programs - pngsuite => Test images - visupng => Contains a MSVC workspace for VisualPng - projects => Contains project files and workspaces for building DLL - beos => Contains a Beos workspace for building libpng - c5builder => Contains a Borland workspace for building libpng - and zlib - visualc6 => Contains a Microsoft Visual C++ (MSVC) workspace - for building libpng and zlib - netware.txt => Contains instructions for downloading a set of - project files for building libpng and zlib on - Netware. - wince.txt => Contains instructions for downloading a Microsoft - Visual C++ (Windows CD Toolkit) workspace for - building libpng and zlib on WindowsCE - scripts => Directory containing scripts for building libpng: - descrip.mms => VMS makefile for MMS or MMK - makefile.std => Generic UNIX makefile (cc, creates static libpng.a) - makefile.elf => Linux/ELF makefile symbol versioning, - gcc, creates libpng12.so.0.1.2.24) - makefile.linux => Linux/ELF makefile - (gcc, creates libpng12.so.0.1.2.24) - makefile.gcmmx => Linux/ELF makefile - (gcc, creates libpng12.so.0.1.2.24, - uses assembler code tuned for Intel MMX platform) - makefile.gcc => Generic makefile (gcc, creates static libpng.a) - makefile.knr => Archaic UNIX Makefile that converts files with - ansi2knr (Requires ansi2knr.c from - ftp://ftp.cs.wisc.edu/ghost) - makefile.aix => AIX makefile - makefile.cygwin => Cygwin/gcc makefile - makefile.darwin => Darwin makefile - makefile.dec => DEC Alpha UNIX makefile - makefile.freebsd => FreeBSD makefile - makefile.hpgcc => HPUX makefile using gcc - makefile.hpux => HPUX (10.20 and 11.00) makefile - makefile.hp64 => HPUX (10.20 and 11.00) makefile, 64 bit - makefile.ibmc => IBM C/C++ version 3.x for Win32 and OS/2 (static) - makefile.intel => Intel C/C++ version 4.0 and later - libpng.icc => Project file, IBM VisualAge/C++ 4.0 or later - makefile.netbsd => NetBSD/cc makefile, PNGGCCRD, makes libpng.so. - makefile.ne12bsd => NetBSD/cc makefile, PNGGCCRD, makes libpng12.so - makefile.openbsd => OpenBSD makefile - makefile.sgi => Silicon Graphics IRIX (cc, creates static lib) - makefile.sggcc => Silicon Graphics - (gcc, creates libpng12.so.0.1.2.24) - makefile.sunos => Sun makefile - makefile.solaris => Solaris 2.X makefile - (gcc, creates libpng12.so.0.1.2.24) - makefile.so9 => Solaris 9 makefile - (gcc, creates libpng12.so.0.1.2.24) - makefile.32sunu => Sun Ultra 32-bit makefile - makefile.64sunu => Sun Ultra 64-bit makefile - makefile.sco => For SCO OSr5 ELF and Unixware 7 with Native cc - makefile.mips => MIPS makefile - makefile.acorn => Acorn makefile - makefile.amiga => Amiga makefile - smakefile.ppc => AMIGA smakefile for SAS C V6.58/7.00 PPC - compiler (Requires SCOPTIONS, copied from - scripts/SCOPTIONS.ppc) - makefile.atari => Atari makefile - makefile.beos => BEOS makefile for X86 - makefile.bor => Borland makefile (uses bcc) - makefile.bc32 => 32-bit Borland C++ (all modules compiled in C mode) - makefile.tc3 => Turbo C 3.0 makefile - makefile.dj2 => DJGPP 2 makefile - makefile.msc => Microsoft C makefile - makefile.vcawin32=> makefile for Microsoft Visual C++ 5.0 and - later (uses assembler code tuned for Intel MMX - platform) - makefile.vcwin32 => makefile for Microsoft Visual C++ 4.0 and - later (does not use assembler code) - makefile.os2 => OS/2 Makefile (gcc and emx, requires pngos2.def) - pngos2.def => OS/2 module definition file used by makefile.os2 - makefile.watcom => Watcom 10a+ Makefile, 32-bit flat memory model - makevms.com => VMS build script - SCOPTIONS.ppc => Used with smakefile.ppc - -Good luck, and happy coding. - --Glenn Randers-Pehrson (current maintainer) - Internet: glennrp at users.sourceforge.net - --Andreas Eric Dilger (former maintainer, 1996-1997) - Internet: adilger at enel.ucalgary.ca - Web: http://www-mddsp.enel.ucalgary.ca/People/adilger/ - --Guy Eric Schalnat (original author and former maintainer, 1995-1996) - (formerly of Group 42, Inc) - Internet: gschal at infinet.com diff --git a/src/3rdParty/CxImage/png/TODO b/src/3rdParty/CxImage/png/TODO deleted file mode 100644 index a5f639577d..0000000000 --- a/src/3rdParty/CxImage/png/TODO +++ /dev/null @@ -1,24 +0,0 @@ -TODO - list of things to do for libpng: - -Final bug fixes. -Improve API by hiding the png_struct and png_info structs. -Finish work on the no-floating-point version (including gamma compensation) -Better C++ wrapper/full C++ implementation? -Fix problem with C++ and EXTERN "C". -cHRM transformation. -Improve setjmp/longjmp usage or remove it in favor of returning error codes. -Add "grayscale->palette" transformation and "palette->grayscale" detection. -Improved dithering. -Multi-lingual error and warning message support. -Complete sRGB transformation (presently it simply uses gamma=0.45455). -Man pages for function calls. -Better documentation. -Better filter selection - (counting huffman bits/precompression? filter inertia? filter costs?). -Histogram creation. -Text conversion between different code pages (Latin-1 -> Mac and DOS). -Should we always malloc 2^bit_depth PLTE/tRNS/hIST entries for safety? -Build gamma tables using fixed point (and do away with floating point entirely). -Use greater precision when changing to linear gamma for compositing against - background and doing rgb-to-gray transformation. -Investigate pre-incremented loop counters and other loop constructions. diff --git a/src/3rdParty/CxImage/png/Y2KINFO b/src/3rdParty/CxImage/png/Y2KINFO deleted file mode 100644 index 829b511e45..0000000000 --- a/src/3rdParty/CxImage/png/Y2KINFO +++ /dev/null @@ -1,55 +0,0 @@ - Y2K compliance in libpng: - ========================= - - December 14, 2007 - - Since the PNG Development group is an ad-hoc body, we can't make - an official declaration. - - This is your unofficial assurance that libpng from version 0.71 and - upward through 1.2.24 are Y2K compliant. It is my belief that earlier - versions were also Y2K compliant. - - Libpng only has three year fields. One is a 2-byte unsigned integer - that will hold years up to 65535. The other two hold the date in text - format, and will hold years up to 9999. - - The integer is - "png_uint_16 year" in png_time_struct. - - The strings are - "png_charp time_buffer" in png_struct and - "near_time_buffer", which is a local character string in png.c. - - There are seven time-related functions: - - png_convert_to_rfc_1123() in png.c - (formerly png_convert_to_rfc_1152() in error) - png_convert_from_struct_tm() in pngwrite.c, called in pngwrite.c - png_convert_from_time_t() in pngwrite.c - png_get_tIME() in pngget.c - png_handle_tIME() in pngrutil.c, called in pngread.c - png_set_tIME() in pngset.c - png_write_tIME() in pngwutil.c, called in pngwrite.c - - All appear to handle dates properly in a Y2K environment. The - png_convert_from_time_t() function calls gmtime() to convert from system - clock time, which returns (year - 1900), which we properly convert to - the full 4-digit year. There is a possibility that applications using - libpng are not passing 4-digit years into the png_convert_to_rfc_1123() - function, or that they are incorrectly passing only a 2-digit year - instead of "year - 1900" into the png_convert_from_struct_tm() function, - but this is not under our control. The libpng documentation has always - stated that it works with 4-digit years, and the APIs have been - documented as such. - - The tIME chunk itself is also Y2K compliant. It uses a 2-byte unsigned - integer to hold the year, and can hold years as large as 65535. - - zlib, upon which libpng depends, is also Y2K compliant. It contains - no date-related code. - - - Glenn Randers-Pehrson - libpng maintainer - PNG Development Group diff --git a/src/3rdParty/CxImage/png/libpng-1.2.24.txt b/src/3rdParty/CxImage/png/libpng-1.2.24.txt deleted file mode 100644 index 5b8dc53b97..0000000000 --- a/src/3rdParty/CxImage/png/libpng-1.2.24.txt +++ /dev/null @@ -1,2851 +0,0 @@ -libpng.txt - A description on how to use and modify libpng - - libpng version 1.2.24 - December 14, 2007 - Updated and distributed by Glenn Randers-Pehrson - - Copyright (c) 1998-2007 Glenn Randers-Pehrson - For conditions of distribution and use, see copyright - notice in png.h. - - based on: - - libpng 1.0 beta 6 version 0.96 May 28, 1997 - Updated and distributed by Andreas Dilger - Copyright (c) 1996, 1997 Andreas Dilger - - libpng 1.0 beta 2 - version 0.88 January 26, 1996 - For conditions of distribution and use, see copyright - notice in png.h. Copyright (c) 1995, 1996 Guy Eric - Schalnat, Group 42, Inc. - - Updated/rewritten per request in the libpng FAQ - Copyright (c) 1995, 1996 Frank J. T. Wojcik - December 18, 1995 & January 20, 1996 - -I. Introduction - -This file describes how to use and modify the PNG reference library -(known as libpng) for your own use. There are five sections to this -file: introduction, structures, reading, writing, and modification and -configuration notes for various special platforms. In addition to this -file, example.c is a good starting point for using the library, as -it is heavily commented and should include everything most people -will need. We assume that libpng is already installed; see the -INSTALL file for instructions on how to install libpng. - -For examples of libpng usage, see the files "example.c", "pngtest.c", -and the files in the "contrib" directory, all of which are included in the -libpng distribution. - -Libpng was written as a companion to the PNG specification, as a way -of reducing the amount of time and effort it takes to support the PNG -file format in application programs. - -The PNG specification (second edition), November 2003, is available as -a W3C Recommendation and as an ISO Standard (ISO/IEC 15948:2003 (E)) at - - -The PNG-1.0 specification is available -as RFC 2083 and as a -W3C Recommendation . Some -additional chunks are described in the special-purpose public chunks -documents at . - -Other information -about PNG, and the latest version of libpng, can be found at the PNG home -page, . - -Most users will not have to modify the library significantly; advanced -users may want to modify it more. All attempts were made to make it as -complete as possible, while keeping the code easy to understand. -Currently, this library only supports C. Support for other languages -is being considered. - -Libpng has been designed to handle multiple sessions at one time, -to be easily modifiable, to be portable to the vast majority of -machines (ANSI, K&R, 16-, 32-, and 64-bit) available, and to be easy -to use. The ultimate goal of libpng is to promote the acceptance of -the PNG file format in whatever way possible. While there is still -work to be done (see the TODO file), libpng should cover the -majority of the needs of its users. - -Libpng uses zlib for its compression and decompression of PNG files. -Further information about zlib, and the latest version of zlib, can -be found at the zlib home page, . -The zlib compression utility is a general purpose utility that is -useful for more than PNG files, and can be used without libpng. -See the documentation delivered with zlib for more details. -You can usually find the source files for the zlib utility wherever you -find the libpng source files. - -Libpng is thread safe, provided the threads are using different -instances of the structures. Each thread should have its own -png_struct and png_info instances, and thus its own image. -Libpng does not protect itself against two threads using the -same instance of a structure. - -II. Structures - -There are two main structures that are important to libpng, png_struct -and png_info. The first, png_struct, is an internal structure that -will not, for the most part, be used by a user except as the first -variable passed to every libpng function call. - -The png_info structure is designed to provide information about the -PNG file. At one time, the fields of png_info were intended to be -directly accessible to the user. However, this tended to cause problems -with applications using dynamically loaded libraries, and as a result -a set of interface functions for png_info (the png_get_*() and png_set_*() -functions) was developed. The fields of png_info are still available for -older applications, but it is suggested that applications use the new -interfaces if at all possible. - -Applications that do make direct access to the members of png_struct (except -for png_ptr->jmpbuf) must be recompiled whenever the library is updated, -and applications that make direct access to the members of png_info must -be recompiled if they were compiled or loaded with libpng version 1.0.6, -in which the members were in a different order. In version 1.0.7, the -members of the png_info structure reverted to the old order, as they were -in versions 0.97c through 1.0.5. Starting with version 2.0.0, both -structures are going to be hidden, and the contents of the structures will -only be accessible through the png_get/png_set functions. - -The png.h header file is an invaluable reference for programming with libpng. -And while I'm on the topic, make sure you include the libpng header file: - -#include - -III. Reading - -We'll now walk you through the possible functions to call when reading -in a PNG file sequentially, briefly explaining the syntax and purpose -of each one. See example.c and png.h for more detail. While -progressive reading is covered in the next section, you will still -need some of the functions discussed in this section to read a PNG -file. - -Setup - -You will want to do the I/O initialization(*) before you get into libpng, -so if it doesn't work, you don't have much to undo. Of course, you -will also want to insure that you are, in fact, dealing with a PNG -file. Libpng provides a simple check to see if a file is a PNG file. -To use it, pass in the first 1 to 8 bytes of the file to the function -png_sig_cmp(), and it will return 0 if the bytes match the corresponding -bytes of the PNG signature, or nonzero otherwise. Of course, the more bytes -you pass in, the greater the accuracy of the prediction. - -If you are intending to keep the file pointer open for use in libpng, -you must ensure you don't read more than 8 bytes from the beginning -of the file, and you also have to make a call to png_set_sig_bytes_read() -with the number of bytes you read from the beginning. Libpng will -then only check the bytes (if any) that your program didn't read. - -(*): If you are not using the standard I/O functions, you will need -to replace them with custom functions. See the discussion under -Customizing libpng. - - - FILE *fp = fopen(file_name, "rb"); - if (!fp) - { - return (ERROR); - } - fread(header, 1, number, fp); - is_png = !png_sig_cmp(header, 0, number); - if (!is_png) - { - return (NOT_PNG); - } - - -Next, png_struct and png_info need to be allocated and initialized. In -order to ensure that the size of these structures is correct even with a -dynamically linked libpng, there are functions to initialize and -allocate the structures. We also pass the library version, optional -pointers to error handling functions, and a pointer to a data struct for -use by the error functions, if necessary (the pointer and functions can -be NULL if the default error handlers are to be used). See the section -on Changes to Libpng below regarding the old initialization functions. -The structure allocation functions quietly return NULL if they fail to -create the structure, so your application should check for that. - - png_structp png_ptr = png_create_read_struct - (PNG_LIBPNG_VER_STRING, (png_voidp)user_error_ptr, - user_error_fn, user_warning_fn); - if (!png_ptr) - return (ERROR); - - png_infop info_ptr = png_create_info_struct(png_ptr); - if (!info_ptr) - { - png_destroy_read_struct(&png_ptr, - (png_infopp)NULL, (png_infopp)NULL); - return (ERROR); - } - - png_infop end_info = png_create_info_struct(png_ptr); - if (!end_info) - { - png_destroy_read_struct(&png_ptr, &info_ptr, - (png_infopp)NULL); - return (ERROR); - } - -If you want to use your own memory allocation routines, -define PNG_USER_MEM_SUPPORTED and use -png_create_read_struct_2() instead of png_create_read_struct(): - - png_structp png_ptr = png_create_read_struct_2 - (PNG_LIBPNG_VER_STRING, (png_voidp)user_error_ptr, - user_error_fn, user_warning_fn, (png_voidp) - user_mem_ptr, user_malloc_fn, user_free_fn); - -The error handling routines passed to png_create_read_struct() -and the memory alloc/free routines passed to png_create_struct_2() -are only necessary if you are not using the libpng supplied error -handling and memory alloc/free functions. - -When libpng encounters an error, it expects to longjmp back -to your routine. Therefore, you will need to call setjmp and pass -your png_jmpbuf(png_ptr). If you read the file from different -routines, you will need to update the jmpbuf field every time you enter -a new routine that will call a png_*() function. - -See your documentation of setjmp/longjmp for your compiler for more -information on setjmp/longjmp. See the discussion on libpng error -handling in the Customizing Libpng section below for more information -on the libpng error handling. If an error occurs, and libpng longjmp's -back to your setjmp, you will want to call png_destroy_read_struct() to -free any memory. - - if (setjmp(png_jmpbuf(png_ptr))) - { - png_destroy_read_struct(&png_ptr, &info_ptr, - &end_info); - fclose(fp); - return (ERROR); - } - -If you would rather avoid the complexity of setjmp/longjmp issues, -you can compile libpng with PNG_SETJMP_NOT_SUPPORTED, in which case -errors will result in a call to PNG_ABORT() which defaults to abort(). - -Now you need to set up the input code. The default for libpng is to -use the C function fread(). If you use this, you will need to pass a -valid FILE * in the function png_init_io(). Be sure that the file is -opened in binary mode. If you wish to handle reading data in another -way, you need not call the png_init_io() function, but you must then -implement the libpng I/O methods discussed in the Customizing Libpng -section below. - - png_init_io(png_ptr, fp); - -If you had previously opened the file and read any of the signature from -the beginning in order to see if this was a PNG file, you need to let -libpng know that there are some bytes missing from the start of the file. - - png_set_sig_bytes(png_ptr, number); - -Setting up callback code - -You can set up a callback function to handle any unknown chunks in the -input stream. You must supply the function - - read_chunk_callback(png_ptr ptr, - png_unknown_chunkp chunk); - { - /* The unknown chunk structure contains your - chunk data: */ - png_byte name[5]; - png_byte *data; - png_size_t size; - /* Note that libpng has already taken care of - the CRC handling */ - - /* put your code here. Return one of the - following: */ - - return (-n); /* chunk had an error */ - return (0); /* did not recognize */ - return (n); /* success */ - } - -(You can give your function another name that you like instead of -"read_chunk_callback") - -To inform libpng about your function, use - - png_set_read_user_chunk_fn(png_ptr, user_chunk_ptr, - read_chunk_callback); - -This names not only the callback function, but also a user pointer that -you can retrieve with - - png_get_user_chunk_ptr(png_ptr); - -At this point, you can set up a callback function that will be -called after each row has been read, which you can use to control -a progress meter or the like. It's demonstrated in pngtest.c. -You must supply a function - - void read_row_callback(png_ptr ptr, png_uint_32 row, - int pass); - { - /* put your code here */ - } - -(You can give it another name that you like instead of "read_row_callback") - -To inform libpng about your function, use - - png_set_read_status_fn(png_ptr, read_row_callback); - -Width and height limits - -The PNG specification allows the width and height of an image to be as -large as 2^31-1 (0x7fffffff), or about 2.147 billion rows and columns. -Since very few applications really need to process such large images, -we have imposed an arbitrary 1-million limit on rows and columns. -Larger images will be rejected immediately with a png_error() call. If -you wish to override this limit, you can use - - png_set_user_limits(png_ptr, width_max, height_max); - -to set your own limits, or use width_max = height_max = 0x7fffffffL -to allow all valid dimensions (libpng may reject some very large images -anyway because of potential buffer overflow conditions). - -You should put this statement after you create the PNG structure and -before calling png_read_info(), png_read_png(), or png_process_data(). -If you need to retrieve the limits that are being applied, use - - width_max = png_get_user_width_max(png_ptr); - height_max = png_get_user_height_max(png_ptr); - -Unknown-chunk handling - -Now you get to set the way the library processes unknown chunks in the -input PNG stream. Both known and unknown chunks will be read. Normal -behavior is that known chunks will be parsed into information in -various info_ptr members; unknown chunks will be discarded. To change -this, you can call: - - png_set_keep_unknown_chunks(png_ptr, keep, - chunk_list, num_chunks); - keep - 0: do not handle as unknown - 1: do not keep - 2: keep only if safe-to-copy - 3: keep even if unsafe-to-copy - You can use these definitions: - PNG_HANDLE_CHUNK_AS_DEFAULT 0 - PNG_HANDLE_CHUNK_NEVER 1 - PNG_HANDLE_CHUNK_IF_SAFE 2 - PNG_HANDLE_CHUNK_ALWAYS 3 - chunk_list - list of chunks affected (a byte string, - five bytes per chunk, NULL or '\0' if - num_chunks is 0) - num_chunks - number of chunks affected; if 0, all - unknown chunks are affected. If nonzero, - only the chunks in the list are affected - -Unknown chunks declared in this way will be saved as raw data onto a -list of png_unknown_chunk structures. If a chunk that is normally -known to libpng is named in the list, it will be handled as unknown, -according to the "keep" directive. If a chunk is named in successive -instances of png_set_keep_unknown_chunks(), the final instance will -take precedence. The IHDR and IEND chunks should not be named in -chunk_list; if they are, libpng will process them normally anyway. - -The high-level read interface - -At this point there are two ways to proceed; through the high-level -read interface, or through a sequence of low-level read operations. -You can use the high-level interface if (a) you are willing to read -the entire image into memory, and (b) the input transformations -you want to do are limited to the following set: - - PNG_TRANSFORM_IDENTITY No transformation - PNG_TRANSFORM_STRIP_16 Strip 16-bit samples to - 8 bits - PNG_TRANSFORM_STRIP_ALPHA Discard the alpha channel - PNG_TRANSFORM_PACKING Expand 1, 2 and 4-bit - samples to bytes - PNG_TRANSFORM_PACKSWAP Change order of packed - pixels to LSB first - PNG_TRANSFORM_EXPAND Perform set_expand() - PNG_TRANSFORM_INVERT_MONO Invert monochrome images - PNG_TRANSFORM_SHIFT Normalize pixels to the - sBIT depth - PNG_TRANSFORM_BGR Flip RGB to BGR, RGBA - to BGRA - PNG_TRANSFORM_SWAP_ALPHA Flip RGBA to ARGB or GA - to AG - PNG_TRANSFORM_INVERT_ALPHA Change alpha from opacity - to transparency - PNG_TRANSFORM_SWAP_ENDIAN Byte-swap 16-bit samples - -(This excludes setting a background color, doing gamma transformation, -dithering, and setting filler.) If this is the case, simply do this: - - png_read_png(png_ptr, info_ptr, png_transforms, NULL) - -where png_transforms is an integer containing the bitwise OR of -some set of transformation flags. This call is equivalent to png_read_info(), -followed the set of transformations indicated by the transform mask, -then png_read_image(), and finally png_read_end(). - -(The final parameter of this call is not yet used. Someday it might point -to transformation parameters required by some future input transform.) - -You must use png_transforms and not call any png_set_transform() functions -when you use png_read_png(). - -After you have called png_read_png(), you can retrieve the image data -with - - row_pointers = png_get_rows(png_ptr, info_ptr); - -where row_pointers is an array of pointers to the pixel data for each row: - - png_bytep row_pointers[height]; - -If you know your image size and pixel size ahead of time, you can allocate -row_pointers prior to calling png_read_png() with - - if (height > PNG_UINT_32_MAX/png_sizeof(png_byte)) - png_error (png_ptr, - "Image is too tall to process in memory"); - if (width > PNG_UINT_32_MAX/pixel_size) - png_error (png_ptr, - "Image is too wide to process in memory"); - row_pointers = png_malloc(png_ptr, - height*png_sizeof(png_bytep)); - for (int i=0; i) and -png_get_(png_ptr, info_ptr, ...) functions return non-zero if the -data has been read, or zero if it is missing. The parameters to the -png_get_ are set directly if they are simple data types, or a pointer -into the info_ptr is returned for any complex types. - - png_get_PLTE(png_ptr, info_ptr, &palette, - &num_palette); - palette - the palette for the file - (array of png_color) - num_palette - number of entries in the palette - - png_get_gAMA(png_ptr, info_ptr, &gamma); - gamma - the gamma the file is written - at (PNG_INFO_gAMA) - - png_get_sRGB(png_ptr, info_ptr, &srgb_intent); - srgb_intent - the rendering intent (PNG_INFO_sRGB) - The presence of the sRGB chunk - means that the pixel data is in the - sRGB color space. This chunk also - implies specific values of gAMA and - cHRM. - - png_get_iCCP(png_ptr, info_ptr, &name, - &compression_type, &profile, &proflen); - name - The profile name. - compression - The compression type; always - PNG_COMPRESSION_TYPE_BASE for PNG 1.0. - You may give NULL to this argument to - ignore it. - profile - International Color Consortium color - profile data. May contain NULs. - proflen - length of profile data in bytes. - - png_get_sBIT(png_ptr, info_ptr, &sig_bit); - sig_bit - the number of significant bits for - (PNG_INFO_sBIT) each of the gray, - red, green, and blue channels, - whichever are appropriate for the - given color type (png_color_16) - - png_get_tRNS(png_ptr, info_ptr, &trans, &num_trans, - &trans_values); - trans - array of transparent entries for - palette (PNG_INFO_tRNS) - trans_values - graylevel or color sample values of - the single transparent color for - non-paletted images (PNG_INFO_tRNS) - num_trans - number of transparent entries - (PNG_INFO_tRNS) - - png_get_hIST(png_ptr, info_ptr, &hist); - (PNG_INFO_hIST) - hist - histogram of palette (array of - png_uint_16) - - png_get_tIME(png_ptr, info_ptr, &mod_time); - mod_time - time image was last modified - (PNG_VALID_tIME) - - png_get_bKGD(png_ptr, info_ptr, &background); - background - background color (PNG_VALID_bKGD) - valid 16-bit red, green and blue - values, regardless of color_type - - num_comments = png_get_text(png_ptr, info_ptr, - &text_ptr, &num_text); - num_comments - number of comments - text_ptr - array of png_text holding image - comments - text_ptr[i].compression - type of compression used - on "text" PNG_TEXT_COMPRESSION_NONE - PNG_TEXT_COMPRESSION_zTXt - PNG_ITXT_COMPRESSION_NONE - PNG_ITXT_COMPRESSION_zTXt - text_ptr[i].key - keyword for comment. Must contain - 1-79 characters. - text_ptr[i].text - text comments for current - keyword. Can be empty. - text_ptr[i].text_length - length of text string, - after decompression, 0 for iTXt - text_ptr[i].itxt_length - length of itxt string, - after decompression, 0 for tEXt/zTXt - text_ptr[i].lang - language of comment (empty - string for unknown). - text_ptr[i].lang_key - keyword in UTF-8 - (empty string for unknown). - num_text - number of comments (same as - num_comments; you can put NULL here - to avoid the duplication) - Note while png_set_text() will accept text, language, - and translated keywords that can be NULL pointers, the - structure returned by png_get_text will always contain - regular zero-terminated C strings. They might be - empty strings but they will never be NULL pointers. - - num_spalettes = png_get_sPLT(png_ptr, info_ptr, - &palette_ptr); - palette_ptr - array of palette structures holding - contents of one or more sPLT chunks - read. - num_spalettes - number of sPLT chunks read. - - png_get_oFFs(png_ptr, info_ptr, &offset_x, &offset_y, - &unit_type); - offset_x - positive offset from the left edge - of the screen - offset_y - positive offset from the top edge - of the screen - unit_type - PNG_OFFSET_PIXEL, PNG_OFFSET_MICROMETER - - png_get_pHYs(png_ptr, info_ptr, &res_x, &res_y, - &unit_type); - res_x - pixels/unit physical resolution in - x direction - res_y - pixels/unit physical resolution in - x direction - unit_type - PNG_RESOLUTION_UNKNOWN, - PNG_RESOLUTION_METER - - png_get_sCAL(png_ptr, info_ptr, &unit, &width, - &height) - unit - physical scale units (an integer) - width - width of a pixel in physical scale units - height - height of a pixel in physical scale units - (width and height are doubles) - - png_get_sCAL_s(png_ptr, info_ptr, &unit, &width, - &height) - unit - physical scale units (an integer) - width - width of a pixel in physical scale units - height - height of a pixel in physical scale units - (width and height are strings like "2.54") - - num_unknown_chunks = png_get_unknown_chunks(png_ptr, - info_ptr, &unknowns) - unknowns - array of png_unknown_chunk - structures holding unknown chunks - unknowns[i].name - name of unknown chunk - unknowns[i].data - data of unknown chunk - unknowns[i].size - size of unknown chunk's data - unknowns[i].location - position of chunk in file - - The value of "i" corresponds to the order in which the - chunks were read from the PNG file or inserted with the - png_set_unknown_chunks() function. - -The data from the pHYs chunk can be retrieved in several convenient -forms: - - res_x = png_get_x_pixels_per_meter(png_ptr, - info_ptr) - res_y = png_get_y_pixels_per_meter(png_ptr, - info_ptr) - res_x_and_y = png_get_pixels_per_meter(png_ptr, - info_ptr) - res_x = png_get_x_pixels_per_inch(png_ptr, - info_ptr) - res_y = png_get_y_pixels_per_inch(png_ptr, - info_ptr) - res_x_and_y = png_get_pixels_per_inch(png_ptr, - info_ptr) - aspect_ratio = png_get_pixel_aspect_ratio(png_ptr, - info_ptr) - - (Each of these returns 0 [signifying "unknown"] if - the data is not present or if res_x is 0; - res_x_and_y is 0 if res_x != res_y) - -The data from the oFFs chunk can be retrieved in several convenient -forms: - - x_offset = png_get_x_offset_microns(png_ptr, info_ptr); - y_offset = png_get_y_offset_microns(png_ptr, info_ptr); - x_offset = png_get_x_offset_inches(png_ptr, info_ptr); - y_offset = png_get_y_offset_inches(png_ptr, info_ptr); - - (Each of these returns 0 [signifying "unknown" if both - x and y are 0] if the data is not present or if the - chunk is present but the unit is the pixel) - -For more information, see the png_info definition in png.h and the -PNG specification for chunk contents. Be careful with trusting -rowbytes, as some of the transformations could increase the space -needed to hold a row (expand, filler, gray_to_rgb, etc.). -See png_read_update_info(), below. - -A quick word about text_ptr and num_text. PNG stores comments in -keyword/text pairs, one pair per chunk, with no limit on the number -of text chunks, and a 2^31 byte limit on their size. While there are -suggested keywords, there is no requirement to restrict the use to these -strings. It is strongly suggested that keywords and text be sensible -to humans (that's the point), so don't use abbreviations. Non-printing -symbols are not allowed. See the PNG specification for more details. -There is also no requirement to have text after the keyword. - -Keywords should be limited to 79 Latin-1 characters without leading or -trailing spaces, but non-consecutive spaces are allowed within the -keyword. It is possible to have the same keyword any number of times. -The text_ptr is an array of png_text structures, each holding a -pointer to a language string, a pointer to a keyword and a pointer to -a text string. The text string, language code, and translated -keyword may be empty or NULL pointers. The keyword/text -pairs are put into the array in the order that they are received. -However, some or all of the text chunks may be after the image, so, to -make sure you have read all the text chunks, don't mess with these -until after you read the stuff after the image. This will be -mentioned again below in the discussion that goes with png_read_end(). - -Input transformations - -After you've read the header information, you can set up the library -to handle any special transformations of the image data. The various -ways to transform the data will be described in the order that they -should occur. This is important, as some of these change the color -type and/or bit depth of the data, and some others only work on -certain color types and bit depths. Even though each transformation -checks to see if it has data that it can do something with, you should -make sure to only enable a transformation if it will be valid for the -data. For example, don't swap red and blue on grayscale data. - -The colors used for the background and transparency values should be -supplied in the same format/depth as the current image data. They -are stored in the same format/depth as the image data in a bKGD or tRNS -chunk, so this is what libpng expects for this data. The colors are -transformed to keep in sync with the image data when an application -calls the png_read_update_info() routine (see below). - -Data will be decoded into the supplied row buffers packed into bytes -unless the library has been told to transform it into another format. -For example, 4 bit/pixel paletted or grayscale data will be returned -2 pixels/byte with the leftmost pixel in the high-order bits of the -byte, unless png_set_packing() is called. 8-bit RGB data will be stored -in RGB RGB RGB format unless png_set_filler() or png_set_add_alpha() -is called to insert filler bytes, either before or after each RGB triplet. -16-bit RGB data will be returned RRGGBB RRGGBB, with the most significant -byte of the color value first, unless png_set_strip_16() is called to -transform it to regular RGB RGB triplets, or png_set_filler() or -png_set_add alpha() is called to insert filler bytes, either before or -after each RRGGBB triplet. Similarly, 8-bit or 16-bit grayscale data can -be modified with -png_set_filler(), png_set_add_alpha(), or png_set_strip_16(). - -The following code transforms grayscale images of less than 8 to 8 bits, -changes paletted images to RGB, and adds a full alpha channel if there is -transparency information in a tRNS chunk. This is most useful on -grayscale images with bit depths of 2 or 4 or if there is a multiple-image -viewing application that wishes to treat all images in the same way. - - if (color_type == PNG_COLOR_TYPE_PALETTE) - png_set_palette_to_rgb(png_ptr); - - if (color_type == PNG_COLOR_TYPE_GRAY && - bit_depth < 8) png_set_expand_gray_1_2_4_to_8(png_ptr); - - if (png_get_valid(png_ptr, info_ptr, - PNG_INFO_tRNS)) png_set_tRNS_to_alpha(png_ptr); - -These three functions are actually aliases for png_set_expand(), added -in libpng version 1.0.4, with the function names expanded to improve code -readability. In some future version they may actually do different -things. - -As of libpng version 1.2.9, png_set_expand_gray_1_2_4_to_8() was -added. It expands the sample depth without changing tRNS to alpha. -At the same time, png_set_gray_1_2_4_to_8() was deprecated, and it -will be removed from a future version. - -PNG can have files with 16 bits per channel. If you only can handle -8 bits per channel, this will strip the pixels down to 8 bit. - - if (bit_depth == 16) - png_set_strip_16(png_ptr); - -If, for some reason, you don't need the alpha channel on an image, -and you want to remove it rather than combining it with the background -(but the image author certainly had in mind that you *would* combine -it with the background, so that's what you should probably do): - - if (color_type & PNG_COLOR_MASK_ALPHA) - png_set_strip_alpha(png_ptr); - -In PNG files, the alpha channel in an image -is the level of opacity. If you need the alpha channel in an image to -be the level of transparency instead of opacity, you can invert the -alpha channel (or the tRNS chunk data) after it's read, so that 0 is -fully opaque and 255 (in 8-bit or paletted images) or 65535 (in 16-bit -images) is fully transparent, with - - png_set_invert_alpha(png_ptr); - -PNG files pack pixels of bit depths 1, 2, and 4 into bytes as small as -they can, resulting in, for example, 8 pixels per byte for 1 bit -files. This code expands to 1 pixel per byte without changing the -values of the pixels: - - if (bit_depth < 8) - png_set_packing(png_ptr); - -PNG files have possible bit depths of 1, 2, 4, 8, and 16. All pixels -stored in a PNG image have been "scaled" or "shifted" up to the next -higher possible bit depth (e.g. from 5 bits/sample in the range [0,31] to -8 bits/sample in the range [0, 255]). However, it is also possible to -convert the PNG pixel data back to the original bit depth of the image. -This call reduces the pixels back down to the original bit depth: - - png_color_8p sig_bit; - - if (png_get_sBIT(png_ptr, info_ptr, &sig_bit)) - png_set_shift(png_ptr, sig_bit); - -PNG files store 3-color pixels in red, green, blue order. This code -changes the storage of the pixels to blue, green, red: - - if (color_type == PNG_COLOR_TYPE_RGB || - color_type == PNG_COLOR_TYPE_RGB_ALPHA) - png_set_bgr(png_ptr); - -PNG files store RGB pixels packed into 3 or 6 bytes. This code expands them -into 4 or 8 bytes for windowing systems that need them in this format: - - if (color_type == PNG_COLOR_TYPE_RGB) - png_set_filler(png_ptr, filler, PNG_FILLER_BEFORE); - -where "filler" is the 8 or 16-bit number to fill with, and the location is -either PNG_FILLER_BEFORE or PNG_FILLER_AFTER, depending upon whether -you want the filler before the RGB or after. This transformation -does not affect images that already have full alpha channels. To add an -opaque alpha channel, use filler=0xff or 0xffff and PNG_FILLER_AFTER which -will generate RGBA pixels. - -Note that png_set_filler() does not change the color type. If you want -to do that, you can add a true alpha channel with - - if (color_type == PNG_COLOR_TYPE_RGB || - color_type == PNG_COLOR_TYPE_GRAY) - png_set_add_alpha(png_ptr, filler, PNG_FILLER_AFTER); - -where "filler" contains the alpha value to assign to each pixel. -This function was added in libpng-1.2.7. - -If you are reading an image with an alpha channel, and you need the -data as ARGB instead of the normal PNG format RGBA: - - if (color_type == PNG_COLOR_TYPE_RGB_ALPHA) - png_set_swap_alpha(png_ptr); - -For some uses, you may want a grayscale image to be represented as -RGB. This code will do that conversion: - - if (color_type == PNG_COLOR_TYPE_GRAY || - color_type == PNG_COLOR_TYPE_GRAY_ALPHA) - png_set_gray_to_rgb(png_ptr); - -Conversely, you can convert an RGB or RGBA image to grayscale or grayscale -with alpha. - - if (color_type == PNG_COLOR_TYPE_RGB || - color_type == PNG_COLOR_TYPE_RGB_ALPHA) - png_set_rgb_to_gray_fixed(png_ptr, error_action, - int red_weight, int green_weight); - - error_action = 1: silently do the conversion - error_action = 2: issue a warning if the original - image has any pixel where - red != green or red != blue - error_action = 3: issue an error and abort the - conversion if the original - image has any pixel where - red != green or red != blue - - red_weight: weight of red component times 100000 - green_weight: weight of green component times 100000 - If either weight is negative, default - weights (21268, 71514) are used. - -If you have set error_action = 1 or 2, you can -later check whether the image really was gray, after processing -the image rows, with the png_get_rgb_to_gray_status(png_ptr) function. -It will return a png_byte that is zero if the image was gray or -1 if there were any non-gray pixels. bKGD and sBIT data -will be silently converted to grayscale, using the green channel -data, regardless of the error_action setting. - -With red_weight+green_weight<=100000, -the normalized graylevel is computed: - - int rw = red_weight * 65536; - int gw = green_weight * 65536; - int bw = 65536 - (rw + gw); - gray = (rw*red + gw*green + bw*blue)/65536; - -The default values approximate those recommended in the Charles -Poynton's Color FAQ, -Copyright (c) 1998-01-04 Charles Poynton - - Y = 0.212671 * R + 0.715160 * G + 0.072169 * B - -Libpng approximates this with - - Y = 0.21268 * R + 0.7151 * G + 0.07217 * B - -which can be expressed with integers as - - Y = (6969 * R + 23434 * G + 2365 * B)/32768 - -The calculation is done in a linear colorspace, if the image gamma -is known. - -If you have a grayscale and you are using png_set_expand_depth(), -png_set_expand(), or png_set_gray_to_rgb to change to truecolor or to -a higher bit-depth, you must either supply the background color as a gray -value at the original file bit-depth (need_expand = 1) or else supply the -background color as an RGB triplet at the final, expanded bit depth -(need_expand = 0). Similarly, if you are reading a paletted image, you -must either supply the background color as a palette index (need_expand = 1) -or as an RGB triplet that may or may not be in the palette (need_expand = 0). - - png_color_16 my_background; - png_color_16p image_background; - - if (png_get_bKGD(png_ptr, info_ptr, &image_background)) - png_set_background(png_ptr, image_background, - PNG_BACKGROUND_GAMMA_FILE, 1, 1.0); - else - png_set_background(png_ptr, &my_background, - PNG_BACKGROUND_GAMMA_SCREEN, 0, 1.0); - -The png_set_background() function tells libpng to composite images -with alpha or simple transparency against the supplied background -color. If the PNG file contains a bKGD chunk (PNG_INFO_bKGD valid), -you may use this color, or supply another color more suitable for -the current display (e.g., the background color from a web page). You -need to tell libpng whether the color is in the gamma space of the -display (PNG_BACKGROUND_GAMMA_SCREEN for colors you supply), the file -(PNG_BACKGROUND_GAMMA_FILE for colors from the bKGD chunk), or one -that is neither of these gammas (PNG_BACKGROUND_GAMMA_UNIQUE - I don't -know why anyone would use this, but it's here). - -To properly display PNG images on any kind of system, the application needs -to know what the display gamma is. Ideally, the user will know this, and -the application will allow them to set it. One method of allowing the user -to set the display gamma separately for each system is to check for a -SCREEN_GAMMA or DISPLAY_GAMMA environment variable, which will hopefully be -correctly set. - -Note that display_gamma is the overall gamma correction required to produce -pleasing results, which depends on the lighting conditions in the surrounding -environment. In a dim or brightly lit room, no compensation other than -the physical gamma exponent of the monitor is needed, while in a dark room -a slightly smaller exponent is better. - - double gamma, screen_gamma; - - if (/* We have a user-defined screen - gamma value */) - { - screen_gamma = user_defined_screen_gamma; - } - /* One way that applications can share the same - screen gamma value */ - else if ((gamma_str = getenv("SCREEN_GAMMA")) - != NULL) - { - screen_gamma = (double)atof(gamma_str); - } - /* If we don't have another value */ - else - { - screen_gamma = 2.2; /* A good guess for a - PC monitor in a bright office or a dim room */ - screen_gamma = 2.0; /* A good guess for a - PC monitor in a dark room */ - screen_gamma = 1.7 or 1.0; /* A good - guess for Mac systems */ - } - -The png_set_gamma() function handles gamma transformations of the data. -Pass both the file gamma and the current screen_gamma. If the file does -not have a gamma value, you can pass one anyway if you have an idea what -it is (usually 0.45455 is a good guess for GIF images on PCs). Note -that file gammas are inverted from screen gammas. See the discussions -on gamma in the PNG specification for an excellent description of what -gamma is, and why all applications should support it. It is strongly -recommended that PNG viewers support gamma correction. - - if (png_get_gAMA(png_ptr, info_ptr, &gamma)) - png_set_gamma(png_ptr, screen_gamma, gamma); - else - png_set_gamma(png_ptr, screen_gamma, 0.45455); - -If you need to reduce an RGB file to a paletted file, or if a paletted -file has more entries then will fit on your screen, png_set_dither() -will do that. Note that this is a simple match dither that merely -finds the closest color available. This should work fairly well with -optimized palettes, and fairly badly with linear color cubes. If you -pass a palette that is larger then maximum_colors, the file will -reduce the number of colors in the palette so it will fit into -maximum_colors. If there is a histogram, it will use it to make -more intelligent choices when reducing the palette. If there is no -histogram, it may not do as good a job. - - if (color_type & PNG_COLOR_MASK_COLOR) - { - if (png_get_valid(png_ptr, info_ptr, - PNG_INFO_PLTE)) - { - png_uint_16p histogram = NULL; - - png_get_hIST(png_ptr, info_ptr, - &histogram); - png_set_dither(png_ptr, palette, num_palette, - max_screen_colors, histogram, 1); - } - else - { - png_color std_color_cube[MAX_SCREEN_COLORS] = - { ... colors ... }; - - png_set_dither(png_ptr, std_color_cube, - MAX_SCREEN_COLORS, MAX_SCREEN_COLORS, - NULL,0); - } - } - -PNG files describe monochrome as black being zero and white being one. -The following code will reverse this (make black be one and white be -zero): - - if (bit_depth == 1 && color_type == PNG_COLOR_TYPE_GRAY) - png_set_invert_mono(png_ptr); - -This function can also be used to invert grayscale and gray-alpha images: - - if (color_type == PNG_COLOR_TYPE_GRAY || - color_type == PNG_COLOR_TYPE_GRAY_ALPHA) - png_set_invert_mono(png_ptr); - -PNG files store 16 bit pixels in network byte order (big-endian, -ie. most significant bits first). This code changes the storage to the -other way (little-endian, i.e. least significant bits first, the -way PCs store them): - - if (bit_depth == 16) - png_set_swap(png_ptr); - -If you are using packed-pixel images (1, 2, or 4 bits/pixel), and you -need to change the order the pixels are packed into bytes, you can use: - - if (bit_depth < 8) - png_set_packswap(png_ptr); - -Finally, you can write your own transformation function if none of -the existing ones meets your needs. This is done by setting a callback -with - - png_set_read_user_transform_fn(png_ptr, - read_transform_fn); - -You must supply the function - - void read_transform_fn(png_ptr ptr, row_info_ptr - row_info, png_bytep data) - -See pngtest.c for a working example. Your function will be called -after all of the other transformations have been processed. - -You can also set up a pointer to a user structure for use by your -callback function, and you can inform libpng that your transform -function will change the number of channels or bit depth with the -function - - png_set_user_transform_info(png_ptr, user_ptr, - user_depth, user_channels); - -The user's application, not libpng, is responsible for allocating and -freeing any memory required for the user structure. - -You can retrieve the pointer via the function -png_get_user_transform_ptr(). For example: - - voidp read_user_transform_ptr = - png_get_user_transform_ptr(png_ptr); - -The last thing to handle is interlacing; this is covered in detail below, -but you must call the function here if you want libpng to handle expansion -of the interlaced image. - - number_of_passes = png_set_interlace_handling(png_ptr); - -After setting the transformations, libpng can update your png_info -structure to reflect any transformations you've requested with this -call. This is most useful to update the info structure's rowbytes -field so you can use it to allocate your image memory. This function -will also update your palette with the correct screen_gamma and -background if these have been given with the calls above. - - png_read_update_info(png_ptr, info_ptr); - -After you call png_read_update_info(), you can allocate any -memory you need to hold the image. The row data is simply -raw byte data for all forms of images. As the actual allocation -varies among applications, no example will be given. If you -are allocating one large chunk, you will need to build an -array of pointers to each row, as it will be needed for some -of the functions below. - -Reading image data - -After you've allocated memory, you can read the image data. -The simplest way to do this is in one function call. If you are -allocating enough memory to hold the whole image, you can just -call png_read_image() and libpng will read in all the image data -and put it in the memory area supplied. You will need to pass in -an array of pointers to each row. - -This function automatically handles interlacing, so you don't need -to call png_set_interlace_handling() or call this function multiple -times, or any of that other stuff necessary with png_read_rows(). - - png_read_image(png_ptr, row_pointers); - -where row_pointers is: - - png_bytep row_pointers[height]; - -You can point to void or char or whatever you use for pixels. - -If you don't want to read in the whole image at once, you can -use png_read_rows() instead. If there is no interlacing (check -interlace_type == PNG_INTERLACE_NONE), this is simple: - - png_read_rows(png_ptr, row_pointers, NULL, - number_of_rows); - -where row_pointers is the same as in the png_read_image() call. - -If you are doing this just one row at a time, you can do this with -a single row_pointer instead of an array of row_pointers: - - png_bytep row_pointer = row; - png_read_row(png_ptr, row_pointer, NULL); - -If the file is interlaced (interlace_type != 0 in the IHDR chunk), things -get somewhat harder. The only current (PNG Specification version 1.2) -interlacing type for PNG is (interlace_type == PNG_INTERLACE_ADAM7) -is a somewhat complicated 2D interlace scheme, known as Adam7, that -breaks down an image into seven smaller images of varying size, based -on an 8x8 grid. - -libpng can fill out those images or it can give them to you "as is". -If you want them filled out, there are two ways to do that. The one -mentioned in the PNG specification is to expand each pixel to cover -those pixels that have not been read yet (the "rectangle" method). -This results in a blocky image for the first pass, which gradually -smooths out as more pixels are read. The other method is the "sparkle" -method, where pixels are drawn only in their final locations, with the -rest of the image remaining whatever colors they were initialized to -before the start of the read. The first method usually looks better, -but tends to be slower, as there are more pixels to put in the rows. - -If you don't want libpng to handle the interlacing details, just call -png_read_rows() seven times to read in all seven images. Each of the -images is a valid image by itself, or they can all be combined on an -8x8 grid to form a single image (although if you intend to combine them -you would be far better off using the libpng interlace handling). - -The first pass will return an image 1/8 as wide as the entire image -(every 8th column starting in column 0) and 1/8 as high as the original -(every 8th row starting in row 0), the second will be 1/8 as wide -(starting in column 4) and 1/8 as high (also starting in row 0). The -third pass will be 1/4 as wide (every 4th pixel starting in column 0) and -1/8 as high (every 8th row starting in row 4), and the fourth pass will -be 1/4 as wide and 1/4 as high (every 4th column starting in column 2, -and every 4th row starting in row 0). The fifth pass will return an -image 1/2 as wide, and 1/4 as high (starting at column 0 and row 2), -while the sixth pass will be 1/2 as wide and 1/2 as high as the original -(starting in column 1 and row 0). The seventh and final pass will be as -wide as the original, and 1/2 as high, containing all of the odd -numbered scanlines. Phew! - -If you want libpng to expand the images, call this before calling -png_start_read_image() or png_read_update_info(): - - if (interlace_type == PNG_INTERLACE_ADAM7) - number_of_passes - = png_set_interlace_handling(png_ptr); - -This will return the number of passes needed. Currently, this -is seven, but may change if another interlace type is added. -This function can be called even if the file is not interlaced, -where it will return one pass. - -If you are not going to display the image after each pass, but are -going to wait until the entire image is read in, use the sparkle -effect. This effect is faster and the end result of either method -is exactly the same. If you are planning on displaying the image -after each pass, the "rectangle" effect is generally considered the -better looking one. - -If you only want the "sparkle" effect, just call png_read_rows() as -normal, with the third parameter NULL. Make sure you make pass over -the image number_of_passes times, and you don't change the data in the -rows between calls. You can change the locations of the data, just -not the data. Each pass only writes the pixels appropriate for that -pass, and assumes the data from previous passes is still valid. - - png_read_rows(png_ptr, row_pointers, NULL, - number_of_rows); - -If you only want the first effect (the rectangles), do the same as -before except pass the row buffer in the third parameter, and leave -the second parameter NULL. - - png_read_rows(png_ptr, NULL, row_pointers, - number_of_rows); - -Finishing a sequential read - -After you are finished reading the image through the -low-level interface, you can finish reading the file. If you are -interested in comments or time, which may be stored either before or -after the image data, you should pass the separate png_info struct if -you want to keep the comments from before and after the image -separate. If you are not interested, you can pass NULL. - - png_read_end(png_ptr, end_info); - -When you are done, you can free all memory allocated by libpng like this: - - png_destroy_read_struct(&png_ptr, &info_ptr, - &end_info); - -It is also possible to individually free the info_ptr members that -point to libpng-allocated storage with the following function: - - png_free_data(png_ptr, info_ptr, mask, seq) - mask - identifies data to be freed, a mask - containing the bitwise OR of one or - more of - PNG_FREE_PLTE, PNG_FREE_TRNS, - PNG_FREE_HIST, PNG_FREE_ICCP, - PNG_FREE_PCAL, PNG_FREE_ROWS, - PNG_FREE_SCAL, PNG_FREE_SPLT, - PNG_FREE_TEXT, PNG_FREE_UNKN, - or simply PNG_FREE_ALL - seq - sequence number of item to be freed - (-1 for all items) - -This function may be safely called when the relevant storage has -already been freed, or has not yet been allocated, or was allocated -by the user and not by libpng, and will in those -cases do nothing. The "seq" parameter is ignored if only one item -of the selected data type, such as PLTE, is allowed. If "seq" is not --1, and multiple items are allowed for the data type identified in -the mask, such as text or sPLT, only the n'th item in the structure -is freed, where n is "seq". - -The default behavior is only to free data that was allocated internally -by libpng. This can be changed, so that libpng will not free the data, -or so that it will free data that was allocated by the user with png_malloc() -or png_zalloc() and passed in via a png_set_*() function, with - - png_data_freer(png_ptr, info_ptr, freer, mask) - mask - which data elements are affected - same choices as in png_free_data() - freer - one of - PNG_DESTROY_WILL_FREE_DATA - PNG_SET_WILL_FREE_DATA - PNG_USER_WILL_FREE_DATA - -This function only affects data that has already been allocated. -You can call this function after reading the PNG data but before calling -any png_set_*() functions, to control whether the user or the png_set_*() -function is responsible for freeing any existing data that might be present, -and again after the png_set_*() functions to control whether the user -or png_destroy_*() is supposed to free the data. When the user assumes -responsibility for libpng-allocated data, the application must use -png_free() to free it, and when the user transfers responsibility to libpng -for data that the user has allocated, the user must have used png_malloc() -or png_zalloc() to allocate it. - -If you allocated your row_pointers in a single block, as suggested above in -the description of the high level read interface, you must not transfer -responsibility for freeing it to the png_set_rows or png_read_destroy function, -because they would also try to free the individual row_pointers[i]. - -If you allocated text_ptr.text, text_ptr.lang, and text_ptr.translated_keyword -separately, do not transfer responsibility for freeing text_ptr to libpng, -because when libpng fills a png_text structure it combines these members with -the key member, and png_free_data() will free only text_ptr.key. Similarly, -if you transfer responsibility for free'ing text_ptr from libpng to your -application, your application must not separately free those members. - -The png_free_data() function will turn off the "valid" flag for anything -it frees. If you need to turn the flag off for a chunk that was freed by your -application instead of by libpng, you can use - - png_set_invalid(png_ptr, info_ptr, mask); - mask - identifies the chunks to be made invalid, - containing the bitwise OR of one or - more of - PNG_INFO_gAMA, PNG_INFO_sBIT, - PNG_INFO_cHRM, PNG_INFO_PLTE, - PNG_INFO_tRNS, PNG_INFO_bKGD, - PNG_INFO_hIST, PNG_INFO_pHYs, - PNG_INFO_oFFs, PNG_INFO_tIME, - PNG_INFO_pCAL, PNG_INFO_sRGB, - PNG_INFO_iCCP, PNG_INFO_sPLT, - PNG_INFO_sCAL, PNG_INFO_IDAT - -For a more compact example of reading a PNG image, see the file example.c. - -Reading PNG files progressively - -The progressive reader is slightly different then the non-progressive -reader. Instead of calling png_read_info(), png_read_rows(), and -png_read_end(), you make one call to png_process_data(), which calls -callbacks when it has the info, a row, or the end of the image. You -set up these callbacks with png_set_progressive_read_fn(). You don't -have to worry about the input/output functions of libpng, as you are -giving the library the data directly in png_process_data(). I will -assume that you have read the section on reading PNG files above, -so I will only highlight the differences (although I will show -all of the code). - -png_structp png_ptr; -png_infop info_ptr; - - /* An example code fragment of how you would - initialize the progressive reader in your - application. */ - int - initialize_png_reader() - { - png_ptr = png_create_read_struct - (PNG_LIBPNG_VER_STRING, (png_voidp)user_error_ptr, - user_error_fn, user_warning_fn); - if (!png_ptr) - return (ERROR); - info_ptr = png_create_info_struct(png_ptr); - if (!info_ptr) - { - png_destroy_read_struct(&png_ptr, (png_infopp)NULL, - (png_infopp)NULL); - return (ERROR); - } - - if (setjmp(png_jmpbuf(png_ptr))) - { - png_destroy_read_struct(&png_ptr, &info_ptr, - (png_infopp)NULL); - return (ERROR); - } - - /* This one's new. You can provide functions - to be called when the header info is valid, - when each row is completed, and when the image - is finished. If you aren't using all functions, - you can specify NULL parameters. Even when all - three functions are NULL, you need to call - png_set_progressive_read_fn(). You can use - any struct as the user_ptr (cast to a void pointer - for the function call), and retrieve the pointer - from inside the callbacks using the function - - png_get_progressive_ptr(png_ptr); - - which will return a void pointer, which you have - to cast appropriately. - */ - png_set_progressive_read_fn(png_ptr, (void *)user_ptr, - info_callback, row_callback, end_callback); - - return 0; - } - - /* A code fragment that you call as you receive blocks - of data */ - int - process_data(png_bytep buffer, png_uint_32 length) - { - if (setjmp(png_jmpbuf(png_ptr))) - { - png_destroy_read_struct(&png_ptr, &info_ptr, - (png_infopp)NULL); - return (ERROR); - } - - /* This one's new also. Simply give it a chunk - of data from the file stream (in order, of - course). On machines with segmented memory - models machines, don't give it any more than - 64K. The library seems to run fine with sizes - of 4K. Although you can give it much less if - necessary (I assume you can give it chunks of - 1 byte, I haven't tried less then 256 bytes - yet). When this function returns, you may - want to display any rows that were generated - in the row callback if you don't already do - so there. - */ - png_process_data(png_ptr, info_ptr, buffer, length); - return 0; - } - - /* This function is called (as set by - png_set_progressive_read_fn() above) when enough data - has been supplied so all of the header has been - read. - */ - void - info_callback(png_structp png_ptr, png_infop info) - { - /* Do any setup here, including setting any of - the transformations mentioned in the Reading - PNG files section. For now, you _must_ call - either png_start_read_image() or - png_read_update_info() after all the - transformations are set (even if you don't set - any). You may start getting rows before - png_process_data() returns, so this is your - last chance to prepare for that. - */ - } - - /* This function is called when each row of image - data is complete */ - void - row_callback(png_structp png_ptr, png_bytep new_row, - png_uint_32 row_num, int pass) - { - /* If the image is interlaced, and you turned - on the interlace handler, this function will - be called for every row in every pass. Some - of these rows will not be changed from the - previous pass. When the row is not changed, - the new_row variable will be NULL. The rows - and passes are called in order, so you don't - really need the row_num and pass, but I'm - supplying them because it may make your life - easier. - - For the non-NULL rows of interlaced images, - you must call png_progressive_combine_row() - passing in the row and the old row. You can - call this function for NULL rows (it will just - return) and for non-interlaced images (it just - does the memcpy for you) if it will make the - code easier. Thus, you can just do this for - all cases: - */ - - png_progressive_combine_row(png_ptr, old_row, - new_row); - - /* where old_row is what was displayed for - previously for the row. Note that the first - pass (pass == 0, really) will completely cover - the old row, so the rows do not have to be - initialized. After the first pass (and only - for interlaced images), you will have to pass - the current row, and the function will combine - the old row and the new row. - */ - } - - void - end_callback(png_structp png_ptr, png_infop info) - { - /* This function is called after the whole image - has been read, including any chunks after the - image (up to and including the IEND). You - will usually have the same info chunk as you - had in the header, although some data may have - been added to the comments and time fields. - - Most people won't do much here, perhaps setting - a flag that marks the image as finished. - */ - } - - - -IV. Writing - -Much of this is very similar to reading. However, everything of -importance is repeated here, so you won't have to constantly look -back up in the reading section to understand writing. - -Setup - -You will want to do the I/O initialization before you get into libpng, -so if it doesn't work, you don't have anything to undo. If you are not -using the standard I/O functions, you will need to replace them with -custom writing functions. See the discussion under Customizing libpng. - - FILE *fp = fopen(file_name, "wb"); - if (!fp) - { - return (ERROR); - } - -Next, png_struct and png_info need to be allocated and initialized. -As these can be both relatively large, you may not want to store these -on the stack, unless you have stack space to spare. Of course, you -will want to check if they return NULL. If you are also reading, -you won't want to name your read structure and your write structure -both "png_ptr"; you can call them anything you like, such as -"read_ptr" and "write_ptr". Look at pngtest.c, for example. - - png_structp png_ptr = png_create_write_struct - (PNG_LIBPNG_VER_STRING, (png_voidp)user_error_ptr, - user_error_fn, user_warning_fn); - if (!png_ptr) - return (ERROR); - - png_infop info_ptr = png_create_info_struct(png_ptr); - if (!info_ptr) - { - png_destroy_write_struct(&png_ptr, - (png_infopp)NULL); - return (ERROR); - } - -If you want to use your own memory allocation routines, -define PNG_USER_MEM_SUPPORTED and use -png_create_write_struct_2() instead of png_create_write_struct(): - - png_structp png_ptr = png_create_write_struct_2 - (PNG_LIBPNG_VER_STRING, (png_voidp)user_error_ptr, - user_error_fn, user_warning_fn, (png_voidp) - user_mem_ptr, user_malloc_fn, user_free_fn); - -After you have these structures, you will need to set up the -error handling. When libpng encounters an error, it expects to -longjmp() back to your routine. Therefore, you will need to call -setjmp() and pass the png_jmpbuf(png_ptr). If you -write the file from different routines, you will need to update -the png_jmpbuf(png_ptr) every time you enter a new routine that will -call a png_*() function. See your documentation of setjmp/longjmp -for your compiler for more information on setjmp/longjmp. See -the discussion on libpng error handling in the Customizing Libpng -section below for more information on the libpng error handling. - - if (setjmp(png_jmpbuf(png_ptr))) - { - png_destroy_write_struct(&png_ptr, &info_ptr); - fclose(fp); - return (ERROR); - } - ... - return; - -If you would rather avoid the complexity of setjmp/longjmp issues, -you can compile libpng with PNG_SETJMP_NOT_SUPPORTED, in which case -errors will result in a call to PNG_ABORT() which defaults to abort(). - -Now you need to set up the output code. The default for libpng is to -use the C function fwrite(). If you use this, you will need to pass a -valid FILE * in the function png_init_io(). Be sure that the file is -opened in binary mode. Again, if you wish to handle writing data in -another way, see the discussion on libpng I/O handling in the Customizing -Libpng section below. - - png_init_io(png_ptr, fp); - -If you are embedding your PNG into a datastream such as MNG, and don't -want libpng to write the 8-byte signature, or if you have already -written the signature in your application, use - - png_set_sig_bytes(png_ptr, 8); - -to inform libpng that it should not write a signature. - -Write callbacks - -At this point, you can set up a callback function that will be -called after each row has been written, which you can use to control -a progress meter or the like. It's demonstrated in pngtest.c. -You must supply a function - - void write_row_callback(png_ptr, png_uint_32 row, - int pass); - { - /* put your code here */ - } - -(You can give it another name that you like instead of "write_row_callback") - -To inform libpng about your function, use - - png_set_write_status_fn(png_ptr, write_row_callback); - -You now have the option of modifying how the compression library will -run. The following functions are mainly for testing, but may be useful -in some cases, like if you need to write PNG files extremely fast and -are willing to give up some compression, or if you want to get the -maximum possible compression at the expense of slower writing. If you -have no special needs in this area, let the library do what it wants by -not calling this function at all, as it has been tuned to deliver a good -speed/compression ratio. The second parameter to png_set_filter() is -the filter method, for which the only valid values are 0 (as of the -July 1999 PNG specification, version 1.2) or 64 (if you are writing -a PNG datastream that is to be embedded in a MNG datastream). The third -parameter is a flag that indicates which filter type(s) are to be tested -for each scanline. See the PNG specification for details on the specific filter -types. - - - /* turn on or off filtering, and/or choose - specific filters. You can use either a single - PNG_FILTER_VALUE_NAME or the bitwise OR of one - or more PNG_FILTER_NAME masks. */ - png_set_filter(png_ptr, 0, - PNG_FILTER_NONE | PNG_FILTER_VALUE_NONE | - PNG_FILTER_SUB | PNG_FILTER_VALUE_SUB | - PNG_FILTER_UP | PNG_FILTER_VALUE_UP | - PNG_FILTER_AVE | PNG_FILTER_VALUE_AVE | - PNG_FILTER_PAETH | PNG_FILTER_VALUE_PAETH| - PNG_ALL_FILTERS); - -If an application -wants to start and stop using particular filters during compression, -it should start out with all of the filters (to ensure that the previous -row of pixels will be stored in case it's needed later), and then add -and remove them after the start of compression. - -If you are writing a PNG datastream that is to be embedded in a MNG -datastream, the second parameter can be either 0 or 64. - -The png_set_compression_*() functions interface to the zlib compression -library, and should mostly be ignored unless you really know what you are -doing. The only generally useful call is png_set_compression_level() -which changes how much time zlib spends on trying to compress the image -data. See the Compression Library (zlib.h and algorithm.txt, distributed -with zlib) for details on the compression levels. - - /* set the zlib compression level */ - png_set_compression_level(png_ptr, - Z_BEST_COMPRESSION); - - /* set other zlib parameters */ - png_set_compression_mem_level(png_ptr, 8); - png_set_compression_strategy(png_ptr, - Z_DEFAULT_STRATEGY); - png_set_compression_window_bits(png_ptr, 15); - png_set_compression_method(png_ptr, 8); - png_set_compression_buffer_size(png_ptr, 8192) - -extern PNG_EXPORT(void,png_set_zbuf_size) - -Setting the contents of info for output - -You now need to fill in the png_info structure with all the data you -wish to write before the actual image. Note that the only thing you -are allowed to write after the image is the text chunks and the time -chunk (as of PNG Specification 1.2, anyway). See png_write_end() and -the latest PNG specification for more information on that. If you -wish to write them before the image, fill them in now, and flag that -data as being valid. If you want to wait until after the data, don't -fill them until png_write_end(). For all the fields in png_info and -their data types, see png.h. For explanations of what the fields -contain, see the PNG specification. - -Some of the more important parts of the png_info are: - - png_set_IHDR(png_ptr, info_ptr, width, height, - bit_depth, color_type, interlace_type, - compression_type, filter_method) - width - holds the width of the image - in pixels (up to 2^31). - height - holds the height of the image - in pixels (up to 2^31). - bit_depth - holds the bit depth of one of the - image channels. - (valid values are 1, 2, 4, 8, 16 - and depend also on the - color_type. See also significant - bits (sBIT) below). - color_type - describes which color/alpha - channels are present. - PNG_COLOR_TYPE_GRAY - (bit depths 1, 2, 4, 8, 16) - PNG_COLOR_TYPE_GRAY_ALPHA - (bit depths 8, 16) - PNG_COLOR_TYPE_PALETTE - (bit depths 1, 2, 4, 8) - PNG_COLOR_TYPE_RGB - (bit_depths 8, 16) - PNG_COLOR_TYPE_RGB_ALPHA - (bit_depths 8, 16) - - PNG_COLOR_MASK_PALETTE - PNG_COLOR_MASK_COLOR - PNG_COLOR_MASK_ALPHA - - interlace_type - PNG_INTERLACE_NONE or - PNG_INTERLACE_ADAM7 - compression_type - (must be - PNG_COMPRESSION_TYPE_DEFAULT) - filter_method - (must be PNG_FILTER_TYPE_DEFAULT - or, if you are writing a PNG to - be embedded in a MNG datastream, - can also be - PNG_INTRAPIXEL_DIFFERENCING) - - png_set_PLTE(png_ptr, info_ptr, palette, - num_palette); - palette - the palette for the file - (array of png_color) - num_palette - number of entries in the palette - - png_set_gAMA(png_ptr, info_ptr, gamma); - gamma - the gamma the image was created - at (PNG_INFO_gAMA) - - png_set_sRGB(png_ptr, info_ptr, srgb_intent); - srgb_intent - the rendering intent - (PNG_INFO_sRGB) The presence of - the sRGB chunk means that the pixel - data is in the sRGB color space. - This chunk also implies specific - values of gAMA and cHRM. Rendering - intent is the CSS-1 property that - has been defined by the International - Color Consortium - (http://www.color.org). - It can be one of - PNG_sRGB_INTENT_SATURATION, - PNG_sRGB_INTENT_PERCEPTUAL, - PNG_sRGB_INTENT_ABSOLUTE, or - PNG_sRGB_INTENT_RELATIVE. - - - png_set_sRGB_gAMA_and_cHRM(png_ptr, info_ptr, - srgb_intent); - srgb_intent - the rendering intent - (PNG_INFO_sRGB) The presence of the - sRGB chunk means that the pixel - data is in the sRGB color space. - This function also causes gAMA and - cHRM chunks with the specific values - that are consistent with sRGB to be - written. - - png_set_iCCP(png_ptr, info_ptr, name, compression_type, - profile, proflen); - name - The profile name. - compression - The compression type; always - PNG_COMPRESSION_TYPE_BASE for PNG 1.0. - You may give NULL to this argument to - ignore it. - profile - International Color Consortium color - profile data. May contain NULs. - proflen - length of profile data in bytes. - - png_set_sBIT(png_ptr, info_ptr, sig_bit); - sig_bit - the number of significant bits for - (PNG_INFO_sBIT) each of the gray, red, - green, and blue channels, whichever are - appropriate for the given color type - (png_color_16) - - png_set_tRNS(png_ptr, info_ptr, trans, num_trans, - trans_values); - trans - array of transparent entries for - palette (PNG_INFO_tRNS) - trans_values - graylevel or color sample values of - the single transparent color for - non-paletted images (PNG_INFO_tRNS) - num_trans - number of transparent entries - (PNG_INFO_tRNS) - - png_set_hIST(png_ptr, info_ptr, hist); - (PNG_INFO_hIST) - hist - histogram of palette (array of - png_uint_16) - - png_set_tIME(png_ptr, info_ptr, mod_time); - mod_time - time image was last modified - (PNG_VALID_tIME) - - png_set_bKGD(png_ptr, info_ptr, background); - background - background color (PNG_VALID_bKGD) - - png_set_text(png_ptr, info_ptr, text_ptr, num_text); - text_ptr - array of png_text holding image - comments - text_ptr[i].compression - type of compression used - on "text" PNG_TEXT_COMPRESSION_NONE - PNG_TEXT_COMPRESSION_zTXt - PNG_ITXT_COMPRESSION_NONE - PNG_ITXT_COMPRESSION_zTXt - text_ptr[i].key - keyword for comment. Must contain - 1-79 characters. - text_ptr[i].text - text comments for current - keyword. Can be NULL or empty. - text_ptr[i].text_length - length of text string, - after decompression, 0 for iTXt - text_ptr[i].itxt_length - length of itxt string, - after decompression, 0 for tEXt/zTXt - text_ptr[i].lang - language of comment (NULL or - empty for unknown). - text_ptr[i].translated_keyword - keyword in UTF-8 (NULL - or empty for unknown). - num_text - number of comments - - png_set_sPLT(png_ptr, info_ptr, &palette_ptr, - num_spalettes); - palette_ptr - array of png_sPLT_struct structures - to be added to the list of palettes - in the info structure. - num_spalettes - number of palette structures to be - added. - - png_set_oFFs(png_ptr, info_ptr, offset_x, offset_y, - unit_type); - offset_x - positive offset from the left - edge of the screen - offset_y - positive offset from the top - edge of the screen - unit_type - PNG_OFFSET_PIXEL, PNG_OFFSET_MICROMETER - - png_set_pHYs(png_ptr, info_ptr, res_x, res_y, - unit_type); - res_x - pixels/unit physical resolution - in x direction - res_y - pixels/unit physical resolution - in y direction - unit_type - PNG_RESOLUTION_UNKNOWN, - PNG_RESOLUTION_METER - - png_set_sCAL(png_ptr, info_ptr, unit, width, height) - unit - physical scale units (an integer) - width - width of a pixel in physical scale units - height - height of a pixel in physical scale units - (width and height are doubles) - - png_set_sCAL_s(png_ptr, info_ptr, unit, width, height) - unit - physical scale units (an integer) - width - width of a pixel in physical scale units - height - height of a pixel in physical scale units - (width and height are strings like "2.54") - - png_set_unknown_chunks(png_ptr, info_ptr, &unknowns, - num_unknowns) - unknowns - array of png_unknown_chunk - structures holding unknown chunks - unknowns[i].name - name of unknown chunk - unknowns[i].data - data of unknown chunk - unknowns[i].size - size of unknown chunk's data - unknowns[i].location - position to write chunk in file - 0: do not write chunk - PNG_HAVE_IHDR: before PLTE - PNG_HAVE_PLTE: before IDAT - PNG_AFTER_IDAT: after IDAT - -The "location" member is set automatically according to -what part of the output file has already been written. -You can change its value after calling png_set_unknown_chunks() -as demonstrated in pngtest.c. Within each of the "locations", -the chunks are sequenced according to their position in the -structure (that is, the value of "i", which is the order in which -the chunk was either read from the input file or defined with -png_set_unknown_chunks). - -A quick word about text and num_text. text is an array of png_text -structures. num_text is the number of valid structures in the array. -Each png_text structure holds a language code, a keyword, a text value, -and a compression type. - -The compression types have the same valid numbers as the compression -types of the image data. Currently, the only valid number is zero. -However, you can store text either compressed or uncompressed, unlike -images, which always have to be compressed. So if you don't want the -text compressed, set the compression type to PNG_TEXT_COMPRESSION_NONE. -Because tEXt and zTXt chunks don't have a language field, if you -specify PNG_TEXT_COMPRESSION_NONE or PNG_TEXT_COMPRESSION_zTXt -any language code or translated keyword will not be written out. - -Until text gets around 1000 bytes, it is not worth compressing it. -After the text has been written out to the file, the compression type -is set to PNG_TEXT_COMPRESSION_NONE_WR or PNG_TEXT_COMPRESSION_zTXt_WR, -so that it isn't written out again at the end (in case you are calling -png_write_end() with the same struct. - -The keywords that are given in the PNG Specification are: - - Title Short (one line) title or - caption for image - Author Name of image's creator - Description Description of image (possibly long) - Copyright Copyright notice - Creation Time Time of original image creation - (usually RFC 1123 format, see below) - Software Software used to create the image - Disclaimer Legal disclaimer - Warning Warning of nature of content - Source Device used to create the image - Comment Miscellaneous comment; conversion - from other image format - -The keyword-text pairs work like this. Keywords should be short -simple descriptions of what the comment is about. Some typical -keywords are found in the PNG specification, as is some recommendations -on keywords. You can repeat keywords in a file. You can even write -some text before the image and some after. For example, you may want -to put a description of the image before the image, but leave the -disclaimer until after, so viewers working over modem connections -don't have to wait for the disclaimer to go over the modem before -they start seeing the image. Finally, keywords should be full -words, not abbreviations. Keywords and text are in the ISO 8859-1 -(Latin-1) character set (a superset of regular ASCII) and can not -contain NUL characters, and should not contain control or other -unprintable characters. To make the comments widely readable, stick -with basic ASCII, and avoid machine specific character set extensions -like the IBM-PC character set. The keyword must be present, but -you can leave off the text string on non-compressed pairs. -Compressed pairs must have a text string, as only the text string -is compressed anyway, so the compression would be meaningless. - -PNG supports modification time via the png_time structure. Two -conversion routines are provided, png_convert_from_time_t() for -time_t and png_convert_from_struct_tm() for struct tm. The -time_t routine uses gmtime(). You don't have to use either of -these, but if you wish to fill in the png_time structure directly, -you should provide the time in universal time (GMT) if possible -instead of your local time. Note that the year number is the full -year (e.g. 1998, rather than 98 - PNG is year 2000 compliant!), and -that months start with 1. - -If you want to store the time of the original image creation, you should -use a plain tEXt chunk with the "Creation Time" keyword. This is -necessary because the "creation time" of a PNG image is somewhat vague, -depending on whether you mean the PNG file, the time the image was -created in a non-PNG format, a still photo from which the image was -scanned, or possibly the subject matter itself. In order to facilitate -machine-readable dates, it is recommended that the "Creation Time" -tEXt chunk use RFC 1123 format dates (e.g. "22 May 1997 18:07:10 GMT"), -although this isn't a requirement. Unlike the tIME chunk, the -"Creation Time" tEXt chunk is not expected to be automatically changed -by the software. To facilitate the use of RFC 1123 dates, a function -png_convert_to_rfc1123(png_timep) is provided to convert from PNG -time to an RFC 1123 format string. - -Writing unknown chunks - -You can use the png_set_unknown_chunks function to queue up chunks -for writing. You give it a chunk name, raw data, and a size; that's -all there is to it. The chunks will be written by the next following -png_write_info_before_PLTE, png_write_info, or png_write_end function. -Any chunks previously read into the info structure's unknown-chunk -list will also be written out in a sequence that satisfies the PNG -specification's ordering rules. - -The high-level write interface - -At this point there are two ways to proceed; through the high-level -write interface, or through a sequence of low-level write operations. -You can use the high-level interface if your image data is present -in the info structure. All defined output -transformations are permitted, enabled by the following masks. - - PNG_TRANSFORM_IDENTITY No transformation - PNG_TRANSFORM_PACKING Pack 1, 2 and 4-bit samples - PNG_TRANSFORM_PACKSWAP Change order of packed - pixels to LSB first - PNG_TRANSFORM_INVERT_MONO Invert monochrome images - PNG_TRANSFORM_SHIFT Normalize pixels to the - sBIT depth - PNG_TRANSFORM_BGR Flip RGB to BGR, RGBA - to BGRA - PNG_TRANSFORM_SWAP_ALPHA Flip RGBA to ARGB or GA - to AG - PNG_TRANSFORM_INVERT_ALPHA Change alpha from opacity - to transparency - PNG_TRANSFORM_SWAP_ENDIAN Byte-swap 16-bit samples - PNG_TRANSFORM_STRIP_FILLER Strip out filler bytes. - -If you have valid image data in the info structure (you can use -png_set_rows() to put image data in the info structure), simply do this: - - png_write_png(png_ptr, info_ptr, png_transforms, NULL) - -where png_transforms is an integer containing the bitwise OR of some set of -transformation flags. This call is equivalent to png_write_info(), -followed the set of transformations indicated by the transform mask, -then png_write_image(), and finally png_write_end(). - -(The final parameter of this call is not yet used. Someday it might point -to transformation parameters required by some future output transform.) - -You must use png_transforms and not call any png_set_transform() functions -when you use png_write_png(). - -The low-level write interface - -If you are going the low-level route instead, you are now ready to -write all the file information up to the actual image data. You do -this with a call to png_write_info(). - - png_write_info(png_ptr, info_ptr); - -Note that there is one transformation you may need to do before -png_write_info(). In PNG files, the alpha channel in an image is the -level of opacity. If your data is supplied as a level of -transparency, you can invert the alpha channel before you write it, so -that 0 is fully transparent and 255 (in 8-bit or paletted images) or -65535 (in 16-bit images) is fully opaque, with - - png_set_invert_alpha(png_ptr); - -This must appear before png_write_info() instead of later with the -other transformations because in the case of paletted images the tRNS -chunk data has to be inverted before the tRNS chunk is written. If -your image is not a paletted image, the tRNS data (which in such cases -represents a single color to be rendered as transparent) won't need to -be changed, and you can safely do this transformation after your -png_write_info() call. - -If you need to write a private chunk that you want to appear before -the PLTE chunk when PLTE is present, you can write the PNG info in -two steps, and insert code to write your own chunk between them: - - png_write_info_before_PLTE(png_ptr, info_ptr); - png_set_unknown_chunks(png_ptr, info_ptr, ...); - png_write_info(png_ptr, info_ptr); - -After you've written the file information, you can set up the library -to handle any special transformations of the image data. The various -ways to transform the data will be described in the order that they -should occur. This is important, as some of these change the color -type and/or bit depth of the data, and some others only work on -certain color types and bit depths. Even though each transformation -checks to see if it has data that it can do something with, you should -make sure to only enable a transformation if it will be valid for the -data. For example, don't swap red and blue on grayscale data. - -PNG files store RGB pixels packed into 3 or 6 bytes. This code tells -the library to strip input data that has 4 or 8 bytes per pixel down -to 3 or 6 bytes (or strip 2 or 4-byte grayscale+filler data to 1 or 2 -bytes per pixel). - - png_set_filler(png_ptr, 0, PNG_FILLER_BEFORE); - -where the 0 is unused, and the location is either PNG_FILLER_BEFORE or -PNG_FILLER_AFTER, depending upon whether the filler byte in the pixel -is stored XRGB or RGBX. - -PNG files pack pixels of bit depths 1, 2, and 4 into bytes as small as -they can, resulting in, for example, 8 pixels per byte for 1 bit files. -If the data is supplied at 1 pixel per byte, use this code, which will -correctly pack the pixels into a single byte: - - png_set_packing(png_ptr); - -PNG files reduce possible bit depths to 1, 2, 4, 8, and 16. If your -data is of another bit depth, you can write an sBIT chunk into the -file so that decoders can recover the original data if desired. - - /* Set the true bit depth of the image data */ - if (color_type & PNG_COLOR_MASK_COLOR) - { - sig_bit.red = true_bit_depth; - sig_bit.green = true_bit_depth; - sig_bit.blue = true_bit_depth; - } - else - { - sig_bit.gray = true_bit_depth; - } - if (color_type & PNG_COLOR_MASK_ALPHA) - { - sig_bit.alpha = true_bit_depth; - } - - png_set_sBIT(png_ptr, info_ptr, &sig_bit); - -If the data is stored in the row buffer in a bit depth other than -one supported by PNG (e.g. 3 bit data in the range 0-7 for a 4-bit PNG), -this will scale the values to appear to be the correct bit depth as -is required by PNG. - - png_set_shift(png_ptr, &sig_bit); - -PNG files store 16 bit pixels in network byte order (big-endian, -ie. most significant bits first). This code would be used if they are -supplied the other way (little-endian, i.e. least significant bits -first, the way PCs store them): - - if (bit_depth > 8) - png_set_swap(png_ptr); - -If you are using packed-pixel images (1, 2, or 4 bits/pixel), and you -need to change the order the pixels are packed into bytes, you can use: - - if (bit_depth < 8) - png_set_packswap(png_ptr); - -PNG files store 3 color pixels in red, green, blue order. This code -would be used if they are supplied as blue, green, red: - - png_set_bgr(png_ptr); - -PNG files describe monochrome as black being zero and white being -one. This code would be used if the pixels are supplied with this reversed -(black being one and white being zero): - - png_set_invert_mono(png_ptr); - -Finally, you can write your own transformation function if none of -the existing ones meets your needs. This is done by setting a callback -with - - png_set_write_user_transform_fn(png_ptr, - write_transform_fn); - -You must supply the function - - void write_transform_fn(png_ptr ptr, row_info_ptr - row_info, png_bytep data) - -See pngtest.c for a working example. Your function will be called -before any of the other transformations are processed. - -You can also set up a pointer to a user structure for use by your -callback function. - - png_set_user_transform_info(png_ptr, user_ptr, 0, 0); - -The user_channels and user_depth parameters of this function are ignored -when writing; you can set them to zero as shown. - -You can retrieve the pointer via the function png_get_user_transform_ptr(). -For example: - - voidp write_user_transform_ptr = - png_get_user_transform_ptr(png_ptr); - -It is possible to have libpng flush any pending output, either manually, -or automatically after a certain number of lines have been written. To -flush the output stream a single time call: - - png_write_flush(png_ptr); - -and to have libpng flush the output stream periodically after a certain -number of scanlines have been written, call: - - png_set_flush(png_ptr, nrows); - -Note that the distance between rows is from the last time png_write_flush() -was called, or the first row of the image if it has never been called. -So if you write 50 lines, and then png_set_flush 25, it will flush the -output on the next scanline, and every 25 lines thereafter, unless -png_write_flush() is called before 25 more lines have been written. -If nrows is too small (less than about 10 lines for a 640 pixel wide -RGB image) the image compression may decrease noticeably (although this -may be acceptable for real-time applications). Infrequent flushing will -only degrade the compression performance by a few percent over images -that do not use flushing. - -Writing the image data - -That's it for the transformations. Now you can write the image data. -The simplest way to do this is in one function call. If you have the -whole image in memory, you can just call png_write_image() and libpng -will write the image. You will need to pass in an array of pointers to -each row. This function automatically handles interlacing, so you don't -need to call png_set_interlace_handling() or call this function multiple -times, or any of that other stuff necessary with png_write_rows(). - - png_write_image(png_ptr, row_pointers); - -where row_pointers is: - - png_byte *row_pointers[height]; - -You can point to void or char or whatever you use for pixels. - -If you don't want to write the whole image at once, you can -use png_write_rows() instead. If the file is not interlaced, -this is simple: - - png_write_rows(png_ptr, row_pointers, - number_of_rows); - -row_pointers is the same as in the png_write_image() call. - -If you are just writing one row at a time, you can do this with -a single row_pointer instead of an array of row_pointers: - - png_bytep row_pointer = row; - - png_write_row(png_ptr, row_pointer); - -When the file is interlaced, things can get a good deal more -complicated. The only currently (as of the PNG Specification -version 1.2, dated July 1999) defined interlacing scheme for PNG files -is the "Adam7" interlace scheme, that breaks down an -image into seven smaller images of varying size. libpng will build -these images for you, or you can do them yourself. If you want to -build them yourself, see the PNG specification for details of which -pixels to write when. - -If you don't want libpng to handle the interlacing details, just -use png_set_interlace_handling() and call png_write_rows() the -correct number of times to write all seven sub-images. - -If you want libpng to build the sub-images, call this before you start -writing any rows: - - number_of_passes = - png_set_interlace_handling(png_ptr); - -This will return the number of passes needed. Currently, this -is seven, but may change if another interlace type is added. - -Then write the complete image number_of_passes times. - - png_write_rows(png_ptr, row_pointers, - number_of_rows); - -As some of these rows are not used, and thus return immediately, -you may want to read about interlacing in the PNG specification, -and only update the rows that are actually used. - -Finishing a sequential write - -After you are finished writing the image, you should finish writing -the file. If you are interested in writing comments or time, you should -pass an appropriately filled png_info pointer. If you are not interested, -you can pass NULL. - - png_write_end(png_ptr, info_ptr); - -When you are done, you can free all memory used by libpng like this: - - png_destroy_write_struct(&png_ptr, &info_ptr); - -It is also possible to individually free the info_ptr members that -point to libpng-allocated storage with the following function: - - png_free_data(png_ptr, info_ptr, mask, seq) - mask - identifies data to be freed, a mask - containing the bitwise OR of one or - more of - PNG_FREE_PLTE, PNG_FREE_TRNS, - PNG_FREE_HIST, PNG_FREE_ICCP, - PNG_FREE_PCAL, PNG_FREE_ROWS, - PNG_FREE_SCAL, PNG_FREE_SPLT, - PNG_FREE_TEXT, PNG_FREE_UNKN, - or simply PNG_FREE_ALL - seq - sequence number of item to be freed - (-1 for all items) - -This function may be safely called when the relevant storage has -already been freed, or has not yet been allocated, or was allocated -by the user and not by libpng, and will in those -cases do nothing. The "seq" parameter is ignored if only one item -of the selected data type, such as PLTE, is allowed. If "seq" is not --1, and multiple items are allowed for the data type identified in -the mask, such as text or sPLT, only the n'th item in the structure -is freed, where n is "seq". - -If you allocated data such as a palette that you passed -in to libpng with png_set_*, you must not free it until just before the call to -png_destroy_write_struct(). - -The default behavior is only to free data that was allocated internally -by libpng. This can be changed, so that libpng will not free the data, -or so that it will free data that was allocated by the user with png_malloc() -or png_zalloc() and passed in via a png_set_*() function, with - - png_data_freer(png_ptr, info_ptr, freer, mask) - mask - which data elements are affected - same choices as in png_free_data() - freer - one of - PNG_DESTROY_WILL_FREE_DATA - PNG_SET_WILL_FREE_DATA - PNG_USER_WILL_FREE_DATA - -For example, to transfer responsibility for some data from a read structure -to a write structure, you could use - - png_data_freer(read_ptr, read_info_ptr, - PNG_USER_WILL_FREE_DATA, - PNG_FREE_PLTE|PNG_FREE_tRNS|PNG_FREE_hIST) - png_data_freer(write_ptr, write_info_ptr, - PNG_DESTROY_WILL_FREE_DATA, - PNG_FREE_PLTE|PNG_FREE_tRNS|PNG_FREE_hIST) - -thereby briefly reassigning responsibility for freeing to the user but -immediately afterwards reassigning it once more to the write_destroy -function. Having done this, it would then be safe to destroy the read -structure and continue to use the PLTE, tRNS, and hIST data in the write -structure. - -This function only affects data that has already been allocated. -You can call this function before calling after the png_set_*() functions -to control whether the user or png_destroy_*() is supposed to free the data. -When the user assumes responsibility for libpng-allocated data, the -application must use -png_free() to free it, and when the user transfers responsibility to libpng -for data that the user has allocated, the user must have used png_malloc() -or png_zalloc() to allocate it. - -If you allocated text_ptr.text, text_ptr.lang, and text_ptr.translated_keyword -separately, do not transfer responsibility for freeing text_ptr to libpng, -because when libpng fills a png_text structure it combines these members with -the key member, and png_free_data() will free only text_ptr.key. Similarly, -if you transfer responsibility for free'ing text_ptr from libpng to your -application, your application must not separately free those members. -For a more compact example of writing a PNG image, see the file example.c. - -V. Modifying/Customizing libpng: - -There are two issues here. The first is changing how libpng does -standard things like memory allocation, input/output, and error handling. -The second deals with more complicated things like adding new chunks, -adding new transformations, and generally changing how libpng works. -Both of those are compile-time issues; that is, they are generally -determined at the time the code is written, and there is rarely a need -to provide the user with a means of changing them. - -Memory allocation, input/output, and error handling - -All of the memory allocation, input/output, and error handling in libpng -goes through callbacks that are user-settable. The default routines are -in pngmem.c, pngrio.c, pngwio.c, and pngerror.c, respectively. To change -these functions, call the appropriate png_set_*_fn() function. - -Memory allocation is done through the functions png_malloc() -and png_free(). These currently just call the standard C functions. If -your pointers can't access more then 64K at a time, you will want to set -MAXSEG_64K in zlib.h. Since it is unlikely that the method of handling -memory allocation on a platform will change between applications, these -functions must be modified in the library at compile time. If you prefer -to use a different method of allocating and freeing data, you can use -png_create_read_struct_2() or png_create_write_struct_2() to register -your own functions as described above. -These functions also provide a void pointer that can be retrieved via - - mem_ptr=png_get_mem_ptr(png_ptr); - -Your replacement memory functions must have prototypes as follows: - - png_voidp malloc_fn(png_structp png_ptr, - png_size_t size); - void free_fn(png_structp png_ptr, png_voidp ptr); - -Your malloc_fn() must return NULL in case of failure. The png_malloc() -function will normally call png_error() if it receives a NULL from the -system memory allocator or from your replacement malloc_fn(). - -Input/Output in libpng is done through png_read() and png_write(), -which currently just call fread() and fwrite(). The FILE * is stored in -png_struct and is initialized via png_init_io(). If you wish to change -the method of I/O, the library supplies callbacks that you can set -through the function png_set_read_fn() and png_set_write_fn() at run -time, instead of calling the png_init_io() function. These functions -also provide a void pointer that can be retrieved via the function -png_get_io_ptr(). For example: - - png_set_read_fn(png_structp read_ptr, - voidp read_io_ptr, png_rw_ptr read_data_fn) - - png_set_write_fn(png_structp write_ptr, - voidp write_io_ptr, png_rw_ptr write_data_fn, - png_flush_ptr output_flush_fn); - - voidp read_io_ptr = png_get_io_ptr(read_ptr); - voidp write_io_ptr = png_get_io_ptr(write_ptr); - -The replacement I/O functions must have prototypes as follows: - - void user_read_data(png_structp png_ptr, - png_bytep data, png_size_t length); - void user_write_data(png_structp png_ptr, - png_bytep data, png_size_t length); - void user_flush_data(png_structp png_ptr); - -Supplying NULL for the read, write, or flush functions sets them back -to using the default C stream functions. It is an error to read from -a write stream, and vice versa. - -Error handling in libpng is done through png_error() and png_warning(). -Errors handled through png_error() are fatal, meaning that png_error() -should never return to its caller. Currently, this is handled via -setjmp() and longjmp() (unless you have compiled libpng with -PNG_SETJMP_NOT_SUPPORTED, in which case it is handled via PNG_ABORT()), -but you could change this to do things like exit() if you should wish. - -On non-fatal errors, png_warning() is called -to print a warning message, and then control returns to the calling code. -By default png_error() and png_warning() print a message on stderr via -fprintf() unless the library is compiled with PNG_NO_CONSOLE_IO defined -(because you don't want the messages) or PNG_NO_STDIO defined (because -fprintf() isn't available). If you wish to change the behavior of the error -functions, you will need to set up your own message callbacks. These -functions are normally supplied at the time that the png_struct is created. -It is also possible to redirect errors and warnings to your own replacement -functions after png_create_*_struct() has been called by calling: - - png_set_error_fn(png_structp png_ptr, - png_voidp error_ptr, png_error_ptr error_fn, - png_error_ptr warning_fn); - - png_voidp error_ptr = png_get_error_ptr(png_ptr); - -If NULL is supplied for either error_fn or warning_fn, then the libpng -default function will be used, calling fprintf() and/or longjmp() if a -problem is encountered. The replacement error functions should have -parameters as follows: - - void user_error_fn(png_structp png_ptr, - png_const_charp error_msg); - void user_warning_fn(png_structp png_ptr, - png_const_charp warning_msg); - -The motivation behind using setjmp() and longjmp() is the C++ throw and -catch exception handling methods. This makes the code much easier to write, -as there is no need to check every return code of every function call. -However, there are some uncertainties about the status of local variables -after a longjmp, so the user may want to be careful about doing anything after -setjmp returns non-zero besides returning itself. Consult your compiler -documentation for more details. For an alternative approach, you may wish -to use the "cexcept" facility (see http://cexcept.sourceforge.net). - -Custom chunks - -If you need to read or write custom chunks, you may need to get deeper -into the libpng code. The library now has mechanisms for storing -and writing chunks of unknown type; you can even declare callbacks -for custom chunks. However, this may not be good enough if the -library code itself needs to know about interactions between your -chunk and existing `intrinsic' chunks. - -If you need to write a new intrinsic chunk, first read the PNG -specification. Acquire a first level of -understanding of how it works. Pay particular attention to the -sections that describe chunk names, and look at how other chunks were -designed, so you can do things similarly. Second, check out the -sections of libpng that read and write chunks. Try to find a chunk -that is similar to yours and use it as a template. More details can -be found in the comments inside the code. It is best to handle unknown -chunks in a generic method, via callback functions, instead of by -modifying libpng functions. - -If you wish to write your own transformation for the data, look through -the part of the code that does the transformations, and check out some of -the simpler ones to get an idea of how they work. Try to find a similar -transformation to the one you want to add and copy off of it. More details -can be found in the comments inside the code itself. - -Configuring for 16 bit platforms - -You will want to look into zconf.h to tell zlib (and thus libpng) that -it cannot allocate more then 64K at a time. Even if you can, the memory -won't be accessible. So limit zlib and libpng to 64K by defining MAXSEG_64K. - -Configuring for DOS - -For DOS users who only have access to the lower 640K, you will -have to limit zlib's memory usage via a png_set_compression_mem_level() -call. See zlib.h or zconf.h in the zlib library for more information. - -Configuring for Medium Model - -Libpng's support for medium model has been tested on most of the popular -compilers. Make sure MAXSEG_64K gets defined, USE_FAR_KEYWORD gets -defined, and FAR gets defined to far in pngconf.h, and you should be -all set. Everything in the library (except for zlib's structure) is -expecting far data. You must use the typedefs with the p or pp on -the end for pointers (or at least look at them and be careful). Make -note that the rows of data are defined as png_bytepp, which is an -unsigned char far * far *. - -Configuring for gui/windowing platforms: - -You will need to write new error and warning functions that use the GUI -interface, as described previously, and set them to be the error and -warning functions at the time that png_create_*_struct() is called, -in order to have them available during the structure initialization. -They can be changed later via png_set_error_fn(). On some compilers, -you may also have to change the memory allocators (png_malloc, etc.). - -Configuring for compiler xxx: - -All includes for libpng are in pngconf.h. If you need to add/change/delete -an include, this is the place to do it. The includes that are not -needed outside libpng are protected by the PNG_INTERNAL definition, -which is only defined for those routines inside libpng itself. The -files in libpng proper only include png.h, which includes pngconf.h. - -Configuring zlib: - -There are special functions to configure the compression. Perhaps the -most useful one changes the compression level, which currently uses -input compression values in the range 0 - 9. The library normally -uses the default compression level (Z_DEFAULT_COMPRESSION = 6). Tests -have shown that for a large majority of images, compression values in -the range 3-6 compress nearly as well as higher levels, and do so much -faster. For online applications it may be desirable to have maximum speed -(Z_BEST_SPEED = 1). With versions of zlib after v0.99, you can also -specify no compression (Z_NO_COMPRESSION = 0), but this would create -files larger than just storing the raw bitmap. You can specify the -compression level by calling: - - png_set_compression_level(png_ptr, level); - -Another useful one is to reduce the memory level used by the library. -The memory level defaults to 8, but it can be lowered if you are -short on memory (running DOS, for example, where you only have 640K). -Note that the memory level does have an effect on compression; among -other things, lower levels will result in sections of incompressible -data being emitted in smaller stored blocks, with a correspondingly -larger relative overhead of up to 15% in the worst case. - - png_set_compression_mem_level(png_ptr, level); - -The other functions are for configuring zlib. They are not recommended -for normal use and may result in writing an invalid PNG file. See -zlib.h for more information on what these mean. - - png_set_compression_strategy(png_ptr, - strategy); - png_set_compression_window_bits(png_ptr, - window_bits); - png_set_compression_method(png_ptr, method); - png_set_compression_buffer_size(png_ptr, size); - -Controlling row filtering - -If you want to control whether libpng uses filtering or not, which -filters are used, and how it goes about picking row filters, you -can call one of these functions. The selection and configuration -of row filters can have a significant impact on the size and -encoding speed and a somewhat lesser impact on the decoding speed -of an image. Filtering is enabled by default for RGB and grayscale -images (with and without alpha), but not for paletted images nor -for any images with bit depths less than 8 bits/pixel. - -The 'method' parameter sets the main filtering method, which is -currently only '0' in the PNG 1.2 specification. The 'filters' -parameter sets which filter(s), if any, should be used for each -scanline. Possible values are PNG_ALL_FILTERS and PNG_NO_FILTERS -to turn filtering on and off, respectively. - -Individual filter types are PNG_FILTER_NONE, PNG_FILTER_SUB, -PNG_FILTER_UP, PNG_FILTER_AVG, PNG_FILTER_PAETH, which can be bitwise -ORed together with '|' to specify one or more filters to use. -These filters are described in more detail in the PNG specification. -If you intend to change the filter type during the course of writing -the image, you should start with flags set for all of the filters -you intend to use so that libpng can initialize its internal -structures appropriately for all of the filter types. (Note that this -means the first row must always be adaptively filtered, because libpng -currently does not allocate the filter buffers until png_write_row() -is called for the first time.) - - filters = PNG_FILTER_NONE | PNG_FILTER_SUB - PNG_FILTER_UP | PNG_FILTER_AVE | - PNG_FILTER_PAETH | PNG_ALL_FILTERS; - - png_set_filter(png_ptr, PNG_FILTER_TYPE_BASE, - filters); - The second parameter can also be - PNG_INTRAPIXEL_DIFFERENCING if you are - writing a PNG to be embedded in a MNG - datastream. This parameter must be the - same as the value of filter_method used - in png_set_IHDR(). - -It is also possible to influence how libpng chooses from among the -available filters. This is done in one or both of two ways - by -telling it how important it is to keep the same filter for successive -rows, and by telling it the relative computational costs of the filters. - - double weights[3] = {1.5, 1.3, 1.1}, - costs[PNG_FILTER_VALUE_LAST] = - {1.0, 1.3, 1.3, 1.5, 1.7}; - - png_set_filter_heuristics(png_ptr, - PNG_FILTER_HEURISTIC_WEIGHTED, 3, - weights, costs); - -The weights are multiplying factors that indicate to libpng that the -row filter should be the same for successive rows unless another row filter -is that many times better than the previous filter. In the above example, -if the previous 3 filters were SUB, SUB, NONE, the SUB filter could have a -"sum of absolute differences" 1.5 x 1.3 times higher than other filters -and still be chosen, while the NONE filter could have a sum 1.1 times -higher than other filters and still be chosen. Unspecified weights are -taken to be 1.0, and the specified weights should probably be declining -like those above in order to emphasize recent filters over older filters. - -The filter costs specify for each filter type a relative decoding cost -to be considered when selecting row filters. This means that filters -with higher costs are less likely to be chosen over filters with lower -costs, unless their "sum of absolute differences" is that much smaller. -The costs do not necessarily reflect the exact computational speeds of -the various filters, since this would unduly influence the final image -size. - -Note that the numbers above were invented purely for this example and -are given only to help explain the function usage. Little testing has -been done to find optimum values for either the costs or the weights. - -Removing unwanted object code - -There are a bunch of #define's in pngconf.h that control what parts of -libpng are compiled. All the defines end in _SUPPORTED. If you are -never going to use a capability, you can change the #define to #undef -before recompiling libpng and save yourself code and data space, or -you can turn off individual capabilities with defines that begin with -PNG_NO_. - -You can also turn all of the transforms and ancillary chunk capabilities -off en masse with compiler directives that define -PNG_NO_READ[or WRITE]_TRANSFORMS, or PNG_NO_READ[or WRITE]_ANCILLARY_CHUNKS, -or all four, -along with directives to turn on any of the capabilities that you do -want. The PNG_NO_READ[or WRITE]_TRANSFORMS directives disable -the extra transformations but still leave the library fully capable of reading -and writing PNG files with all known public chunks -Use of the PNG_NO_READ[or WRITE]_ANCILLARY_CHUNKS directive -produces a library that is incapable of reading or writing ancillary chunks. -If you are not using the progressive reading capability, you can -turn that off with PNG_NO_PROGRESSIVE_READ (don't confuse -this with the INTERLACING capability, which you'll still have). - -All the reading and writing specific code are in separate files, so the -linker should only grab the files it needs. However, if you want to -make sure, or if you are building a stand alone library, all the -reading files start with pngr and all the writing files start with -pngw. The files that don't match either (like png.c, pngtrans.c, etc.) -are used for both reading and writing, and always need to be included. -The progressive reader is in pngpread.c - -If you are creating or distributing a dynamically linked library (a .so -or DLL file), you should not remove or disable any parts of the library, -as this will cause applications linked with different versions of the -library to fail if they call functions not available in your library. -The size of the library itself should not be an issue, because only -those sections that are actually used will be loaded into memory. - -Requesting debug printout - -The macro definition PNG_DEBUG can be used to request debugging -printout. Set it to an integer value in the range 0 to 3. Higher -numbers result in increasing amounts of debugging information. The -information is printed to the "stderr" file, unless another file -name is specified in the PNG_DEBUG_FILE macro definition. - -When PNG_DEBUG > 0, the following functions (macros) become available: - - png_debug(level, message) - png_debug1(level, message, p1) - png_debug2(level, message, p1, p2) - -in which "level" is compared to PNG_DEBUG to decide whether to print -the message, "message" is the formatted string to be printed, -and p1 and p2 are parameters that are to be embedded in the string -according to printf-style formatting directives. For example, - - png_debug1(2, "foo=%d\n", foo); - -is expanded to - - if(PNG_DEBUG > 2) - fprintf(PNG_DEBUG_FILE, "foo=%d\n", foo); - -When PNG_DEBUG is defined but is zero, the macros aren't defined, but you -can still use PNG_DEBUG to control your own debugging: - - #ifdef PNG_DEBUG - fprintf(stderr, ... - #endif - -When PNG_DEBUG = 1, the macros are defined, but only png_debug statements -having level = 0 will be printed. There aren't any such statements in -this version of libpng, but if you insert some they will be printed. - -VII. MNG support - -The MNG specification (available at http://www.libpng.org/pub/mng) allows -certain extensions to PNG for PNG images that are embedded in MNG datastreams. -Libpng can support some of these extensions. To enable them, use the -png_permit_mng_features() function: - - feature_set = png_permit_mng_features(png_ptr, mask) - mask is a png_uint_32 containing the bitwise OR of the - features you want to enable. These include - PNG_FLAG_MNG_EMPTY_PLTE - PNG_FLAG_MNG_FILTER_64 - PNG_ALL_MNG_FEATURES - feature_set is a png_uint_32 that is the bitwise AND of - your mask with the set of MNG features that is - supported by the version of libpng that you are using. - -It is an error to use this function when reading or writing a standalone -PNG file with the PNG 8-byte signature. The PNG datastream must be wrapped -in a MNG datastream. As a minimum, it must have the MNG 8-byte signature -and the MHDR and MEND chunks. Libpng does not provide support for these -or any other MNG chunks; your application must provide its own support for -them. You may wish to consider using libmng (available at -http://www.libmng.com) instead. - -VIII. Changes to Libpng from version 0.88 - -It should be noted that versions of libpng later than 0.96 are not -distributed by the original libpng author, Guy Schalnat, nor by -Andreas Dilger, who had taken over from Guy during 1996 and 1997, and -distributed versions 0.89 through 0.96, but rather by another member -of the original PNG Group, Glenn Randers-Pehrson. Guy and Andreas are -still alive and well, but they have moved on to other things. - -The old libpng functions png_read_init(), png_write_init(), -png_info_init(), png_read_destroy(), and png_write_destroy() have been -moved to PNG_INTERNAL in version 0.95 to discourage their use. These -functions will be removed from libpng version 2.0.0. - -The preferred method of creating and initializing the libpng structures is -via the png_create_read_struct(), png_create_write_struct(), and -png_create_info_struct() because they isolate the size of the structures -from the application, allow version error checking, and also allow the -use of custom error handling routines during the initialization, which -the old functions do not. The functions png_read_destroy() and -png_write_destroy() do not actually free the memory that libpng -allocated for these structs, but just reset the data structures, so they -can be used instead of png_destroy_read_struct() and -png_destroy_write_struct() if you feel there is too much system overhead -allocating and freeing the png_struct for each image read. - -Setting the error callbacks via png_set_message_fn() before -png_read_init() as was suggested in libpng-0.88 is no longer supported -because this caused applications that do not use custom error functions -to fail if the png_ptr was not initialized to zero. It is still possible -to set the error callbacks AFTER png_read_init(), or to change them with -png_set_error_fn(), which is essentially the same function, but with a new -name to force compilation errors with applications that try to use the old -method. - -Starting with version 1.0.7, you can find out which version of the library -you are using at run-time: - - png_uint_32 libpng_vn = png_access_version_number(); - -The number libpng_vn is constructed from the major version, minor -version with leading zero, and release number with leading zero, -(e.g., libpng_vn for version 1.0.7 is 10007). - -You can also check which version of png.h you used when compiling your -application: - - png_uint_32 application_vn = PNG_LIBPNG_VER; - -IX. Y2K Compliance in libpng - -December 14, 2007 - -Since the PNG Development group is an ad-hoc body, we can't make -an official declaration. - -This is your unofficial assurance that libpng from version 0.71 and -upward through 1.2.24 are Y2K compliant. It is my belief that earlier -versions were also Y2K compliant. - -Libpng only has three year fields. One is a 2-byte unsigned integer that -will hold years up to 65535. The other two hold the date in text -format, and will hold years up to 9999. - -The integer is - "png_uint_16 year" in png_time_struct. - -The strings are - "png_charp time_buffer" in png_struct and - "near_time_buffer", which is a local character string in png.c. - -There are seven time-related functions: - - png_convert_to_rfc_1123() in png.c - (formerly png_convert_to_rfc_1152() in error) - png_convert_from_struct_tm() in pngwrite.c, called - in pngwrite.c - png_convert_from_time_t() in pngwrite.c - png_get_tIME() in pngget.c - png_handle_tIME() in pngrutil.c, called in pngread.c - png_set_tIME() in pngset.c - png_write_tIME() in pngwutil.c, called in pngwrite.c - -All appear to handle dates properly in a Y2K environment. The -png_convert_from_time_t() function calls gmtime() to convert from system -clock time, which returns (year - 1900), which we properly convert to -the full 4-digit year. There is a possibility that applications using -libpng are not passing 4-digit years into the png_convert_to_rfc_1123() -function, or that they are incorrectly passing only a 2-digit year -instead of "year - 1900" into the png_convert_from_struct_tm() function, -but this is not under our control. The libpng documentation has always -stated that it works with 4-digit years, and the APIs have been -documented as such. - -The tIME chunk itself is also Y2K compliant. It uses a 2-byte unsigned -integer to hold the year, and can hold years as large as 65535. - -zlib, upon which libpng depends, is also Y2K compliant. It contains -no date-related code. - - - Glenn Randers-Pehrson - libpng maintainer - PNG Development Group diff --git a/src/3rdParty/CxImage/png/png.c b/src/3rdParty/CxImage/png/png.c deleted file mode 100644 index 4d25559cf1..0000000000 --- a/src/3rdParty/CxImage/png/png.c +++ /dev/null @@ -1,798 +0,0 @@ - -/* png.c - location for general purpose libpng functions - * - * Last changed in libpng 1.2.21 October 4, 2007 - * For conditions of distribution and use, see copyright notice in png.h - * Copyright (c) 1998-2007 Glenn Randers-Pehrson - * (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger) - * (Version 0.88 Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.) - */ - -#define PNG_INTERNAL -#define PNG_NO_EXTERN -#include "png.h" - -/* Generate a compiler error if there is an old png.h in the search path. */ -typedef version_1_2_24 Your_png_h_is_not_version_1_2_24; - -/* Version information for C files. This had better match the version - * string defined in png.h. */ - -#ifdef PNG_USE_GLOBAL_ARRAYS -/* png_libpng_ver was changed to a function in version 1.0.5c */ -PNG_CONST char png_libpng_ver[18] = PNG_LIBPNG_VER_STRING; - -#ifdef PNG_READ_SUPPORTED - -/* png_sig was changed to a function in version 1.0.5c */ -/* Place to hold the signature string for a PNG file. */ -PNG_CONST png_byte FARDATA png_sig[8] = {137, 80, 78, 71, 13, 10, 26, 10}; -#endif /* PNG_READ_SUPPORTED */ - -/* Invoke global declarations for constant strings for known chunk types */ -PNG_IHDR; -PNG_IDAT; -PNG_IEND; -PNG_PLTE; -PNG_bKGD; -PNG_cHRM; -PNG_gAMA; -PNG_hIST; -PNG_iCCP; -PNG_iTXt; -PNG_oFFs; -PNG_pCAL; -PNG_sCAL; -PNG_pHYs; -PNG_sBIT; -PNG_sPLT; -PNG_sRGB; -PNG_tEXt; -PNG_tIME; -PNG_tRNS; -PNG_zTXt; - -#ifdef PNG_READ_SUPPORTED -/* arrays to facilitate easy interlacing - use pass (0 - 6) as index */ - -/* start of interlace block */ -PNG_CONST int FARDATA png_pass_start[] = {0, 4, 0, 2, 0, 1, 0}; - -/* offset to next interlace block */ -PNG_CONST int FARDATA png_pass_inc[] = {8, 8, 4, 4, 2, 2, 1}; - -/* start of interlace block in the y direction */ -PNG_CONST int FARDATA png_pass_ystart[] = {0, 0, 4, 0, 2, 0, 1}; - -/* offset to next interlace block in the y direction */ -PNG_CONST int FARDATA png_pass_yinc[] = {8, 8, 8, 4, 4, 2, 2}; - -/* Height of interlace block. This is not currently used - if you need - * it, uncomment it here and in png.h -PNG_CONST int FARDATA png_pass_height[] = {8, 8, 4, 4, 2, 2, 1}; -*/ - -/* Mask to determine which pixels are valid in a pass */ -PNG_CONST int FARDATA png_pass_mask[] = {0x80, 0x08, 0x88, 0x22, 0xaa, 0x55, 0xff}; - -/* Mask to determine which pixels to overwrite while displaying */ -PNG_CONST int FARDATA png_pass_dsp_mask[] - = {0xff, 0x0f, 0xff, 0x33, 0xff, 0x55, 0xff}; - -#endif /* PNG_READ_SUPPORTED */ -#endif /* PNG_USE_GLOBAL_ARRAYS */ - -/* Tells libpng that we have already handled the first "num_bytes" bytes - * of the PNG file signature. If the PNG data is embedded into another - * stream we can set num_bytes = 8 so that libpng will not attempt to read - * or write any of the magic bytes before it starts on the IHDR. - */ - -#ifdef PNG_READ_SUPPORTED -void PNGAPI -png_set_sig_bytes(png_structp png_ptr, int num_bytes) -{ - if(png_ptr == NULL) return; - png_debug(1, "in png_set_sig_bytes\n"); - if (num_bytes > 8) - png_error(png_ptr, "Too many bytes for PNG signature."); - - png_ptr->sig_bytes = (png_byte)(num_bytes < 0 ? 0 : num_bytes); -} - -/* Checks whether the supplied bytes match the PNG signature. We allow - * checking less than the full 8-byte signature so that those apps that - * already read the first few bytes of a file to determine the file type - * can simply check the remaining bytes for extra assurance. Returns - * an integer less than, equal to, or greater than zero if sig is found, - * respectively, to be less than, to match, or be greater than the correct - * PNG signature (this is the same behaviour as strcmp, memcmp, etc). - */ -int PNGAPI -png_sig_cmp(png_bytep sig, png_size_t start, png_size_t num_to_check) -{ - png_byte png_signature[8] = {137, 80, 78, 71, 13, 10, 26, 10}; - if (num_to_check > 8) - num_to_check = 8; - else if (num_to_check < 1) - return (-1); - - if (start > 7) - return (-1); - - if (start + num_to_check > 8) - num_to_check = 8 - start; - - return ((int)(png_memcmp(&sig[start], &png_signature[start], num_to_check))); -} - -#if defined(PNG_1_0_X) || defined(PNG_1_2_X) -/* (Obsolete) function to check signature bytes. It does not allow one - * to check a partial signature. This function might be removed in the - * future - use png_sig_cmp(). Returns true (nonzero) if the file is PNG. - */ -int PNGAPI -png_check_sig(png_bytep sig, int num) -{ - return ((int)!png_sig_cmp(sig, (png_size_t)0, (png_size_t)num)); -} -#endif -#endif /* PNG_READ_SUPPORTED */ - -#if defined(PNG_READ_SUPPORTED) || defined(PNG_WRITE_SUPPORTED) -/* Function to allocate memory for zlib and clear it to 0. */ -#ifdef PNG_1_0_X -voidpf PNGAPI -#else -voidpf /* private */ -#endif -png_zalloc(voidpf png_ptr, uInt items, uInt size) -{ - png_voidp ptr; - png_structp p=(png_structp)png_ptr; - png_uint_32 save_flags=p->flags; - png_uint_32 num_bytes; - - if(png_ptr == NULL) return (NULL); - if (items > PNG_UINT_32_MAX/size) - { - png_warning (p, "Potential overflow in png_zalloc()"); - return (NULL); - } - num_bytes = (png_uint_32)items * size; - - p->flags|=PNG_FLAG_MALLOC_NULL_MEM_OK; - ptr = (png_voidp)png_malloc((png_structp)png_ptr, num_bytes); - p->flags=save_flags; - -#if defined(PNG_1_0_X) && !defined(PNG_NO_ZALLOC_ZERO) - if (ptr == NULL) - return ((voidpf)ptr); - - if (num_bytes > (png_uint_32)0x8000L) - { - png_memset(ptr, 0, (png_size_t)0x8000L); - png_memset((png_bytep)ptr + (png_size_t)0x8000L, 0, - (png_size_t)(num_bytes - (png_uint_32)0x8000L)); - } - else - { - png_memset(ptr, 0, (png_size_t)num_bytes); - } -#endif - return ((voidpf)ptr); -} - -/* function to free memory for zlib */ -#ifdef PNG_1_0_X -void PNGAPI -#else -void /* private */ -#endif -png_zfree(voidpf png_ptr, voidpf ptr) -{ - png_free((png_structp)png_ptr, (png_voidp)ptr); -} - -/* Reset the CRC variable to 32 bits of 1's. Care must be taken - * in case CRC is > 32 bits to leave the top bits 0. - */ -void /* PRIVATE */ -png_reset_crc(png_structp png_ptr) -{ - png_ptr->crc = crc32(0, Z_NULL, 0); -} - -/* Calculate the CRC over a section of data. We can only pass as - * much data to this routine as the largest single buffer size. We - * also check that this data will actually be used before going to the - * trouble of calculating it. - */ -void /* PRIVATE */ -png_calculate_crc(png_structp png_ptr, png_bytep ptr, png_size_t length) -{ - int need_crc = 1; - - if (png_ptr->chunk_name[0] & 0x20) /* ancillary */ - { - if ((png_ptr->flags & PNG_FLAG_CRC_ANCILLARY_MASK) == - (PNG_FLAG_CRC_ANCILLARY_USE | PNG_FLAG_CRC_ANCILLARY_NOWARN)) - need_crc = 0; - } - else /* critical */ - { - if (png_ptr->flags & PNG_FLAG_CRC_CRITICAL_IGNORE) - need_crc = 0; - } - - if (need_crc) - png_ptr->crc = crc32(png_ptr->crc, ptr, (uInt)length); -} - -/* Allocate the memory for an info_struct for the application. We don't - * really need the png_ptr, but it could potentially be useful in the - * future. This should be used in favour of malloc(png_sizeof(png_info)) - * and png_info_init() so that applications that want to use a shared - * libpng don't have to be recompiled if png_info changes size. - */ -png_infop PNGAPI -png_create_info_struct(png_structp png_ptr) -{ - png_infop info_ptr; - - png_debug(1, "in png_create_info_struct\n"); - if(png_ptr == NULL) return (NULL); -#ifdef PNG_USER_MEM_SUPPORTED - info_ptr = (png_infop)png_create_struct_2(PNG_STRUCT_INFO, - png_ptr->malloc_fn, png_ptr->mem_ptr); -#else - info_ptr = (png_infop)png_create_struct(PNG_STRUCT_INFO); -#endif - if (info_ptr != NULL) - png_info_init_3(&info_ptr, png_sizeof(png_info)); - - return (info_ptr); -} - -/* This function frees the memory associated with a single info struct. - * Normally, one would use either png_destroy_read_struct() or - * png_destroy_write_struct() to free an info struct, but this may be - * useful for some applications. - */ -void PNGAPI -png_destroy_info_struct(png_structp png_ptr, png_infopp info_ptr_ptr) -{ - png_infop info_ptr = NULL; - if(png_ptr == NULL) return; - - png_debug(1, "in png_destroy_info_struct\n"); - if (info_ptr_ptr != NULL) - info_ptr = *info_ptr_ptr; - - if (info_ptr != NULL) - { - png_info_destroy(png_ptr, info_ptr); - -#ifdef PNG_USER_MEM_SUPPORTED - png_destroy_struct_2((png_voidp)info_ptr, png_ptr->free_fn, - png_ptr->mem_ptr); -#else - png_destroy_struct((png_voidp)info_ptr); -#endif - *info_ptr_ptr = NULL; - } -} - -/* Initialize the info structure. This is now an internal function (0.89) - * and applications using it are urged to use png_create_info_struct() - * instead. - */ -#if defined(PNG_1_0_X) || defined(PNG_1_2_X) -#undef png_info_init -void PNGAPI -png_info_init(png_infop info_ptr) -{ - /* We only come here via pre-1.0.12-compiled applications */ - png_info_init_3(&info_ptr, 0); -} -#endif - -void PNGAPI -png_info_init_3(png_infopp ptr_ptr, png_size_t png_info_struct_size) -{ - png_infop info_ptr = *ptr_ptr; - - if(info_ptr == NULL) return; - - png_debug(1, "in png_info_init_3\n"); - - if(png_sizeof(png_info) > png_info_struct_size) - { - png_destroy_struct(info_ptr); - info_ptr = (png_infop)png_create_struct(PNG_STRUCT_INFO); - *ptr_ptr = info_ptr; - } - - /* set everything to 0 */ - png_memset(info_ptr, 0, png_sizeof (png_info)); -} - -#ifdef PNG_FREE_ME_SUPPORTED -void PNGAPI -png_data_freer(png_structp png_ptr, png_infop info_ptr, - int freer, png_uint_32 mask) -{ - png_debug(1, "in png_data_freer\n"); - if (png_ptr == NULL || info_ptr == NULL) - return; - if(freer == PNG_DESTROY_WILL_FREE_DATA) - info_ptr->free_me |= mask; - else if(freer == PNG_USER_WILL_FREE_DATA) - info_ptr->free_me &= ~mask; - else - png_warning(png_ptr, - "Unknown freer parameter in png_data_freer."); -} -#endif - -void PNGAPI -png_free_data(png_structp png_ptr, png_infop info_ptr, png_uint_32 mask, - int num) -{ - png_debug(1, "in png_free_data\n"); - if (png_ptr == NULL || info_ptr == NULL) - return; - -#if defined(PNG_TEXT_SUPPORTED) -/* free text item num or (if num == -1) all text items */ -#ifdef PNG_FREE_ME_SUPPORTED -if ((mask & PNG_FREE_TEXT) & info_ptr->free_me) -#else -if (mask & PNG_FREE_TEXT) -#endif -{ - if (num != -1) - { - if (info_ptr->text && info_ptr->text[num].key) - { - png_free(png_ptr, info_ptr->text[num].key); - info_ptr->text[num].key = NULL; - } - } - else - { - int i; - for (i = 0; i < info_ptr->num_text; i++) - png_free_data(png_ptr, info_ptr, PNG_FREE_TEXT, i); - png_free(png_ptr, info_ptr->text); - info_ptr->text = NULL; - info_ptr->num_text=0; - } -} -#endif - -#if defined(PNG_tRNS_SUPPORTED) -/* free any tRNS entry */ -#ifdef PNG_FREE_ME_SUPPORTED -if ((mask & PNG_FREE_TRNS) & info_ptr->free_me) -#else -if ((mask & PNG_FREE_TRNS) && (png_ptr->flags & PNG_FLAG_FREE_TRNS)) -#endif -{ - png_free(png_ptr, info_ptr->trans); - info_ptr->valid &= ~PNG_INFO_tRNS; -#ifndef PNG_FREE_ME_SUPPORTED - png_ptr->flags &= ~PNG_FLAG_FREE_TRNS; -#endif - info_ptr->trans = NULL; -} -#endif - -#if defined(PNG_sCAL_SUPPORTED) -/* free any sCAL entry */ -#ifdef PNG_FREE_ME_SUPPORTED -if ((mask & PNG_FREE_SCAL) & info_ptr->free_me) -#else -if (mask & PNG_FREE_SCAL) -#endif -{ -#if defined(PNG_FIXED_POINT_SUPPORTED) && !defined(PNG_FLOATING_POINT_SUPPORTED) - png_free(png_ptr, info_ptr->scal_s_width); - png_free(png_ptr, info_ptr->scal_s_height); - info_ptr->scal_s_width = NULL; - info_ptr->scal_s_height = NULL; -#endif - info_ptr->valid &= ~PNG_INFO_sCAL; -} -#endif - -#if defined(PNG_pCAL_SUPPORTED) -/* free any pCAL entry */ -#ifdef PNG_FREE_ME_SUPPORTED -if ((mask & PNG_FREE_PCAL) & info_ptr->free_me) -#else -if (mask & PNG_FREE_PCAL) -#endif -{ - png_free(png_ptr, info_ptr->pcal_purpose); - png_free(png_ptr, info_ptr->pcal_units); - info_ptr->pcal_purpose = NULL; - info_ptr->pcal_units = NULL; - if (info_ptr->pcal_params != NULL) - { - int i; - for (i = 0; i < (int)info_ptr->pcal_nparams; i++) - { - png_free(png_ptr, info_ptr->pcal_params[i]); - info_ptr->pcal_params[i]=NULL; - } - png_free(png_ptr, info_ptr->pcal_params); - info_ptr->pcal_params = NULL; - } - info_ptr->valid &= ~PNG_INFO_pCAL; -} -#endif - -#if defined(PNG_iCCP_SUPPORTED) -/* free any iCCP entry */ -#ifdef PNG_FREE_ME_SUPPORTED -if ((mask & PNG_FREE_ICCP) & info_ptr->free_me) -#else -if (mask & PNG_FREE_ICCP) -#endif -{ - png_free(png_ptr, info_ptr->iccp_name); - png_free(png_ptr, info_ptr->iccp_profile); - info_ptr->iccp_name = NULL; - info_ptr->iccp_profile = NULL; - info_ptr->valid &= ~PNG_INFO_iCCP; -} -#endif - -#if defined(PNG_sPLT_SUPPORTED) -/* free a given sPLT entry, or (if num == -1) all sPLT entries */ -#ifdef PNG_FREE_ME_SUPPORTED -if ((mask & PNG_FREE_SPLT) & info_ptr->free_me) -#else -if (mask & PNG_FREE_SPLT) -#endif -{ - if (num != -1) - { - if(info_ptr->splt_palettes) - { - png_free(png_ptr, info_ptr->splt_palettes[num].name); - png_free(png_ptr, info_ptr->splt_palettes[num].entries); - info_ptr->splt_palettes[num].name = NULL; - info_ptr->splt_palettes[num].entries = NULL; - } - } - else - { - if(info_ptr->splt_palettes_num) - { - int i; - for (i = 0; i < (int)info_ptr->splt_palettes_num; i++) - png_free_data(png_ptr, info_ptr, PNG_FREE_SPLT, i); - - png_free(png_ptr, info_ptr->splt_palettes); - info_ptr->splt_palettes = NULL; - info_ptr->splt_palettes_num = 0; - } - info_ptr->valid &= ~PNG_INFO_sPLT; - } -} -#endif - -#if defined(PNG_UNKNOWN_CHUNKS_SUPPORTED) - if(png_ptr->unknown_chunk.data) - { - png_free(png_ptr, png_ptr->unknown_chunk.data); - png_ptr->unknown_chunk.data = NULL; - } -#ifdef PNG_FREE_ME_SUPPORTED -if ((mask & PNG_FREE_UNKN) & info_ptr->free_me) -#else -if (mask & PNG_FREE_UNKN) -#endif -{ - if (num != -1) - { - if(info_ptr->unknown_chunks) - { - png_free(png_ptr, info_ptr->unknown_chunks[num].data); - info_ptr->unknown_chunks[num].data = NULL; - } - } - else - { - int i; - - if(info_ptr->unknown_chunks_num) - { - for (i = 0; i < (int)info_ptr->unknown_chunks_num; i++) - png_free_data(png_ptr, info_ptr, PNG_FREE_UNKN, i); - - png_free(png_ptr, info_ptr->unknown_chunks); - info_ptr->unknown_chunks = NULL; - info_ptr->unknown_chunks_num = 0; - } - } -} -#endif - -#if defined(PNG_hIST_SUPPORTED) -/* free any hIST entry */ -#ifdef PNG_FREE_ME_SUPPORTED -if ((mask & PNG_FREE_HIST) & info_ptr->free_me) -#else -if ((mask & PNG_FREE_HIST) && (png_ptr->flags & PNG_FLAG_FREE_HIST)) -#endif -{ - png_free(png_ptr, info_ptr->hist); - info_ptr->hist = NULL; - info_ptr->valid &= ~PNG_INFO_hIST; -#ifndef PNG_FREE_ME_SUPPORTED - png_ptr->flags &= ~PNG_FLAG_FREE_HIST; -#endif -} -#endif - -/* free any PLTE entry that was internally allocated */ -#ifdef PNG_FREE_ME_SUPPORTED -if ((mask & PNG_FREE_PLTE) & info_ptr->free_me) -#else -if ((mask & PNG_FREE_PLTE) && (png_ptr->flags & PNG_FLAG_FREE_PLTE)) -#endif -{ - png_zfree(png_ptr, info_ptr->palette); - info_ptr->palette = NULL; - info_ptr->valid &= ~PNG_INFO_PLTE; -#ifndef PNG_FREE_ME_SUPPORTED - png_ptr->flags &= ~PNG_FLAG_FREE_PLTE; -#endif - info_ptr->num_palette = 0; -} - -#if defined(PNG_INFO_IMAGE_SUPPORTED) -/* free any image bits attached to the info structure */ -#ifdef PNG_FREE_ME_SUPPORTED -if ((mask & PNG_FREE_ROWS) & info_ptr->free_me) -#else -if (mask & PNG_FREE_ROWS) -#endif -{ - if(info_ptr->row_pointers) - { - int row; - for (row = 0; row < (int)info_ptr->height; row++) - { - png_free(png_ptr, info_ptr->row_pointers[row]); - info_ptr->row_pointers[row]=NULL; - } - png_free(png_ptr, info_ptr->row_pointers); - info_ptr->row_pointers=NULL; - } - info_ptr->valid &= ~PNG_INFO_IDAT; -} -#endif - -#ifdef PNG_FREE_ME_SUPPORTED - if(num == -1) - info_ptr->free_me &= ~mask; - else - info_ptr->free_me &= ~(mask & ~PNG_FREE_MUL); -#endif -} - -/* This is an internal routine to free any memory that the info struct is - * pointing to before re-using it or freeing the struct itself. Recall - * that png_free() checks for NULL pointers for us. - */ -void /* PRIVATE */ -png_info_destroy(png_structp png_ptr, png_infop info_ptr) -{ - png_debug(1, "in png_info_destroy\n"); - - png_free_data(png_ptr, info_ptr, PNG_FREE_ALL, -1); - -#if defined(PNG_UNKNOWN_CHUNKS_SUPPORTED) - if (png_ptr->num_chunk_list) - { - png_free(png_ptr, png_ptr->chunk_list); - png_ptr->chunk_list=NULL; - png_ptr->num_chunk_list=0; - } -#endif - - png_info_init_3(&info_ptr, png_sizeof(png_info)); -} -#endif /* defined(PNG_READ_SUPPORTED) || defined(PNG_WRITE_SUPPORTED) */ - -/* This function returns a pointer to the io_ptr associated with the user - * functions. The application should free any memory associated with this - * pointer before png_write_destroy() or png_read_destroy() are called. - */ -png_voidp PNGAPI -png_get_io_ptr(png_structp png_ptr) -{ - if(png_ptr == NULL) return (NULL); - return (png_ptr->io_ptr); -} - -#if defined(PNG_READ_SUPPORTED) || defined(PNG_WRITE_SUPPORTED) -#if !defined(PNG_NO_STDIO) -/* Initialize the default input/output functions for the PNG file. If you - * use your own read or write routines, you can call either png_set_read_fn() - * or png_set_write_fn() instead of png_init_io(). If you have defined - * PNG_NO_STDIO, you must use a function of your own because "FILE *" isn't - * necessarily available. - */ -void PNGAPI -png_init_io(png_structp png_ptr, png_FILE_p fp) -{ - png_debug(1, "in png_init_io\n"); - if(png_ptr == NULL) return; - png_ptr->io_ptr = (png_voidp)fp; -} -#endif - -#if defined(PNG_TIME_RFC1123_SUPPORTED) -/* Convert the supplied time into an RFC 1123 string suitable for use in - * a "Creation Time" or other text-based time string. - */ -png_charp PNGAPI -png_convert_to_rfc1123(png_structp png_ptr, png_timep ptime) -{ - static PNG_CONST char short_months[12][4] = - {"Jan", "Feb", "Mar", "Apr", "May", "Jun", - "Jul", "Aug", "Sep", "Oct", "Nov", "Dec"}; - - if(png_ptr == NULL) return (NULL); - if (png_ptr->time_buffer == NULL) - { - png_ptr->time_buffer = (png_charp)png_malloc(png_ptr, (png_uint_32)(29* - png_sizeof(char))); - } - -#if defined(_WIN32_WCE) - { - wchar_t time_buf[29]; - wsprintf(time_buf, TEXT("%d %S %d %02d:%02d:%02d +0000"), - ptime->day % 32, short_months[(ptime->month - 1) % 12], - ptime->year, ptime->hour % 24, ptime->minute % 60, - ptime->second % 61); - WideCharToMultiByte(CP_ACP, 0, time_buf, -1, png_ptr->time_buffer, 29, - NULL, NULL); - } -#else -#ifdef USE_FAR_KEYWORD - { - char near_time_buf[29]; - png_snprintf6(near_time_buf,29,"%d %s %d %02d:%02d:%02d +0000", - ptime->day % 32, short_months[(ptime->month - 1) % 12], - ptime->year, ptime->hour % 24, ptime->minute % 60, - ptime->second % 61); - png_memcpy(png_ptr->time_buffer, near_time_buf, - 29*png_sizeof(char)); - } -#else - png_snprintf6(png_ptr->time_buffer,29,"%d %s %d %02d:%02d:%02d +0000", - ptime->day % 32, short_months[(ptime->month - 1) % 12], - ptime->year, ptime->hour % 24, ptime->minute % 60, - ptime->second % 61); -#endif -#endif /* _WIN32_WCE */ - return ((png_charp)png_ptr->time_buffer); -} -#endif /* PNG_TIME_RFC1123_SUPPORTED */ - -#endif /* defined(PNG_READ_SUPPORTED) || defined(PNG_WRITE_SUPPORTED) */ - -png_charp PNGAPI -png_get_copyright(png_structp png_ptr) -{ - png_ptr = png_ptr; /* silence compiler warning about unused png_ptr */ - return ((png_charp) "\n libpng version 1.2.24 - December 14, 2007\n\ - Copyright (c) 1998-2007 Glenn Randers-Pehrson\n\ - Copyright (c) 1996-1997 Andreas Dilger\n\ - Copyright (c) 1995-1996 Guy Eric Schalnat, Group 42, Inc.\n"); -} - -/* The following return the library version as a short string in the - * format 1.0.0 through 99.99.99zz. To get the version of *.h files - * used with your application, print out PNG_LIBPNG_VER_STRING, which - * is defined in png.h. - * Note: now there is no difference between png_get_libpng_ver() and - * png_get_header_ver(). Due to the version_nn_nn_nn typedef guard, - * it is guaranteed that png.c uses the correct version of png.h. - */ -png_charp PNGAPI -png_get_libpng_ver(png_structp png_ptr) -{ - /* Version of *.c files used when building libpng */ - png_ptr = png_ptr; /* silence compiler warning about unused png_ptr */ - return ((png_charp) PNG_LIBPNG_VER_STRING); -} - -png_charp PNGAPI -png_get_header_ver(png_structp png_ptr) -{ - /* Version of *.h files used when building libpng */ - png_ptr = png_ptr; /* silence compiler warning about unused png_ptr */ - return ((png_charp) PNG_LIBPNG_VER_STRING); -} - -png_charp PNGAPI -png_get_header_version(png_structp png_ptr) -{ - /* Returns longer string containing both version and date */ - png_ptr = png_ptr; /* silence compiler warning about unused png_ptr */ - return ((png_charp) PNG_HEADER_VERSION_STRING -#ifndef PNG_READ_SUPPORTED - " (NO READ SUPPORT)" -#endif - "\n"); -} - -#if defined(PNG_READ_SUPPORTED) || defined(PNG_WRITE_SUPPORTED) -#ifdef PNG_HANDLE_AS_UNKNOWN_SUPPORTED -int PNGAPI -png_handle_as_unknown(png_structp png_ptr, png_bytep chunk_name) -{ - /* check chunk_name and return "keep" value if it's on the list, else 0 */ - int i; - png_bytep p; - if(png_ptr == NULL || chunk_name == NULL || png_ptr->num_chunk_list<=0) - return 0; - p=png_ptr->chunk_list+png_ptr->num_chunk_list*5-5; - for (i = png_ptr->num_chunk_list; i; i--, p-=5) - if (!png_memcmp(chunk_name, p, 4)) - return ((int)*(p+4)); - return 0; -} -#endif - -/* This function, added to libpng-1.0.6g, is untested. */ -int PNGAPI -png_reset_zstream(png_structp png_ptr) -{ - if (png_ptr == NULL) return Z_STREAM_ERROR; - return (inflateReset(&png_ptr->zstream)); -} -#endif /* defined(PNG_READ_SUPPORTED) || defined(PNG_WRITE_SUPPORTED) */ - -/* This function was added to libpng-1.0.7 */ -png_uint_32 PNGAPI -png_access_version_number(void) -{ - /* Version of *.c files used when building libpng */ - return((png_uint_32) PNG_LIBPNG_VER); -} - - -#if defined(PNG_READ_SUPPORTED) && defined(PNG_ASSEMBLER_CODE_SUPPORTED) -#if !defined(PNG_1_0_X) -/* this function was added to libpng 1.2.0 */ -int PNGAPI -png_mmx_support(void) -{ - /* obsolete, to be removed from libpng-1.4.0 */ - return -1; -} -#endif /* PNG_1_0_X */ -#endif /* PNG_READ_SUPPORTED && PNG_ASSEMBLER_CODE_SUPPORTED */ - -#if defined(PNG_READ_SUPPORTED) || defined(PNG_WRITE_SUPPORTED) -#ifdef PNG_SIZE_T -/* Added at libpng version 1.2.6 */ - PNG_EXTERN png_size_t PNGAPI png_convert_size PNGARG((size_t size)); -png_size_t PNGAPI -png_convert_size(size_t size) -{ - if (size > (png_size_t)-1) - PNG_ABORT(); /* We haven't got access to png_ptr, so no png_error() */ - return ((png_size_t)size); -} -#endif /* PNG_SIZE_T */ -#endif /* defined(PNG_READ_SUPPORTED) || defined(PNG_WRITE_SUPPORTED) */ diff --git a/src/3rdParty/CxImage/png/png.dsp b/src/3rdParty/CxImage/png/png.dsp deleted file mode 100644 index dc243ee350..0000000000 --- a/src/3rdParty/CxImage/png/png.dsp +++ /dev/null @@ -1,224 +0,0 @@ -# Microsoft Developer Studio Project File - Name="png" - Package Owner=<4> -# Microsoft Developer Studio Generated Build File, Format Version 6.00 -# ** DO NOT EDIT ** - -# TARGTYPE "Win32 (x86) Static Library" 0x0104 - -CFG=png - Win32 Unicode Debug -!MESSAGE This is not a valid makefile. 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-SOURCE=.\pngwtran.c -# End Source File -# Begin Source File - -SOURCE=.\pngwutil.c -# End Source File -# End Group -# Begin Group "Header Files" - -# PROP Default_Filter "h;hpp;hxx;hm;inl;fi;fd" -# Begin Source File - -SOURCE=.\png.h -# End Source File -# Begin Source File - -SOURCE=.\pngconf.h -# End Source File -# End Group -# Begin Group "Resource Files" - -# PROP Default_Filter "ico;cur;bmp;dlg;rc2;rct;bin;cnt;rtf;gif;jpg;jpeg;jpe" -# End Group -# End Target -# End Project diff --git a/src/3rdParty/CxImage/png/png.dsw b/src/3rdParty/CxImage/png/png.dsw deleted file mode 100644 index 030fb06cac..0000000000 --- a/src/3rdParty/CxImage/png/png.dsw +++ /dev/null @@ -1,29 +0,0 @@ -Microsoft Developer Studio Workspace File, Format Version 6.00 -# WARNING: DO NOT EDIT OR DELETE THIS WORKSPACE FILE! - -############################################################################### - -Project: "png"=.\png.dsp - Package Owner=<4> - -Package=<5> -{{{ -}}} - -Package=<4> -{{{ -}}} - -############################################################################### - -Global: - -Package=<5> -{{{ -}}} - -Package=<3> -{{{ -}}} - -############################################################################### - diff --git a/src/3rdParty/CxImage/png/png.h b/src/3rdParty/CxImage/png/png.h deleted file mode 100644 index 3ac393ea34..0000000000 --- a/src/3rdParty/CxImage/png/png.h +++ /dev/null @@ -1,3549 +0,0 @@ - -/* png.h - header file for PNG reference library - * - * libpng version 1.2.24 - December 14, 2007 - * Copyright (c) 1998-2007 Glenn Randers-Pehrson - * (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger) - * (Version 0.88 Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.) - * - * Authors and maintainers: - * libpng versions 0.71, May 1995, through 0.88, January 1996: Guy Schalnat - * libpng versions 0.89c, June 1996, through 0.96, May 1997: Andreas Dilger - * libpng versions 0.97, January 1998, through 1.2.24 - December 14, 2007: Glenn - * See also "Contributing Authors", below. - * - * Note about libpng version numbers: - * - * Due to various miscommunications, unforeseen code incompatibilities - * and occasional factors outside the authors' control, version numbering - * on the library has not always been consistent and straightforward. - * The following table summarizes matters since version 0.89c, which was - * the first widely used release: - * - * source png.h png.h shared-lib - * version string int version - * ------- ------ ----- ---------- - * 0.89c "1.0 beta 3" 0.89 89 1.0.89 - * 0.90 "1.0 beta 4" 0.90 90 0.90 [should have been 2.0.90] - * 0.95 "1.0 beta 5" 0.95 95 0.95 [should have been 2.0.95] - * 0.96 "1.0 beta 6" 0.96 96 0.96 [should have been 2.0.96] - * 0.97b "1.00.97 beta 7" 1.00.97 97 1.0.1 [should have been 2.0.97] - * 0.97c 0.97 97 2.0.97 - * 0.98 0.98 98 2.0.98 - * 0.99 0.99 98 2.0.99 - * 0.99a-m 0.99 99 2.0.99 - * 1.00 1.00 100 2.1.0 [100 should be 10000] - * 1.0.0 (from here on, the 100 2.1.0 [100 should be 10000] - * 1.0.1 png.h string is 10001 2.1.0 - * 1.0.1a-e identical to the 10002 from here on, the shared library - * 1.0.2 source version) 10002 is 2.V where V is the source code - * 1.0.2a-b 10003 version, except as noted. - * 1.0.3 10003 - * 1.0.3a-d 10004 - * 1.0.4 10004 - * 1.0.4a-f 10005 - * 1.0.5 (+ 2 patches) 10005 - * 1.0.5a-d 10006 - * 1.0.5e-r 10100 (not source compatible) - * 1.0.5s-v 10006 (not binary compatible) - * 1.0.6 (+ 3 patches) 10006 (still binary incompatible) - * 1.0.6d-f 10007 (still binary incompatible) - * 1.0.6g 10007 - * 1.0.6h 10007 10.6h (testing xy.z so-numbering) - * 1.0.6i 10007 10.6i - * 1.0.6j 10007 2.1.0.6j (incompatible with 1.0.0) - * 1.0.7beta11-14 DLLNUM 10007 2.1.0.7beta11-14 (binary compatible) - * 1.0.7beta15-18 1 10007 2.1.0.7beta15-18 (binary compatible) - * 1.0.7rc1-2 1 10007 2.1.0.7rc1-2 (binary compatible) - * 1.0.7 1 10007 (still compatible) - * 1.0.8beta1-4 1 10008 2.1.0.8beta1-4 - * 1.0.8rc1 1 10008 2.1.0.8rc1 - * 1.0.8 1 10008 2.1.0.8 - * 1.0.9beta1-6 1 10009 2.1.0.9beta1-6 - * 1.0.9rc1 1 10009 2.1.0.9rc1 - * 1.0.9beta7-10 1 10009 2.1.0.9beta7-10 - * 1.0.9rc2 1 10009 2.1.0.9rc2 - * 1.0.9 1 10009 2.1.0.9 - * 1.0.10beta1 1 10010 2.1.0.10beta1 - * 1.0.10rc1 1 10010 2.1.0.10rc1 - * 1.0.10 1 10010 2.1.0.10 - * 1.0.11beta1-3 1 10011 2.1.0.11beta1-3 - * 1.0.11rc1 1 10011 2.1.0.11rc1 - * 1.0.11 1 10011 2.1.0.11 - * 1.0.12beta1-2 2 10012 2.1.0.12beta1-2 - * 1.0.12rc1 2 10012 2.1.0.12rc1 - * 1.0.12 2 10012 2.1.0.12 - * 1.1.0a-f - 10100 2.1.1.0a-f (branch abandoned) - * 1.2.0beta1-2 2 10200 2.1.2.0beta1-2 - * 1.2.0beta3-5 3 10200 3.1.2.0beta3-5 - * 1.2.0rc1 3 10200 3.1.2.0rc1 - * 1.2.0 3 10200 3.1.2.0 - * 1.2.1beta1-4 3 10201 3.1.2.1beta1-4 - * 1.2.1rc1-2 3 10201 3.1.2.1rc1-2 - * 1.2.1 3 10201 3.1.2.1 - * 1.2.2beta1-6 12 10202 12.so.0.1.2.2beta1-6 - * 1.0.13beta1 10 10013 10.so.0.1.0.13beta1 - * 1.0.13rc1 10 10013 10.so.0.1.0.13rc1 - * 1.2.2rc1 12 10202 12.so.0.1.2.2rc1 - * 1.0.13 10 10013 10.so.0.1.0.13 - * 1.2.2 12 10202 12.so.0.1.2.2 - * 1.2.3rc1-6 12 10203 12.so.0.1.2.3rc1-6 - * 1.2.3 12 10203 12.so.0.1.2.3 - * 1.2.4beta1-3 13 10204 12.so.0.1.2.4beta1-3 - * 1.0.14rc1 13 10014 10.so.0.1.0.14rc1 - * 1.2.4rc1 13 10204 12.so.0.1.2.4rc1 - * 1.0.14 10 10014 10.so.0.1.0.14 - * 1.2.4 13 10204 12.so.0.1.2.4 - * 1.2.5beta1-2 13 10205 12.so.0.1.2.5beta1-2 - * 1.0.15rc1-3 10 10015 10.so.0.1.0.15rc1-3 - * 1.2.5rc1-3 13 10205 12.so.0.1.2.5rc1-3 - * 1.0.15 10 10015 10.so.0.1.0.15 - * 1.2.5 13 10205 12.so.0.1.2.5 - * 1.2.6beta1-4 13 10206 12.so.0.1.2.6beta1-4 - * 1.0.16 10 10016 10.so.0.1.0.16 - * 1.2.6 13 10206 12.so.0.1.2.6 - * 1.2.7beta1-2 13 10207 12.so.0.1.2.7beta1-2 - * 1.0.17rc1 10 10017 10.so.0.1.0.17rc1 - * 1.2.7rc1 13 10207 12.so.0.1.2.7rc1 - * 1.0.17 10 10017 10.so.0.1.0.17 - * 1.2.7 13 10207 12.so.0.1.2.7 - * 1.2.8beta1-5 13 10208 12.so.0.1.2.8beta1-5 - * 1.0.18rc1-5 10 10018 10.so.0.1.0.18rc1-5 - * 1.2.8rc1-5 13 10208 12.so.0.1.2.8rc1-5 - * 1.0.18 10 10018 10.so.0.1.0.18 - * 1.2.8 13 10208 12.so.0.1.2.8 - * 1.2.9beta1-3 13 10209 12.so.0.1.2.9beta1-3 - * 1.2.9beta4-11 13 10209 12.so.0.9[.0] - * 1.2.9rc1 13 10209 12.so.0.9[.0] - * 1.2.9 13 10209 12.so.0.9[.0] - * 1.2.10beta1-8 13 10210 12.so.0.10[.0] - * 1.2.10rc1-3 13 10210 12.so.0.10[.0] - * 1.2.10 13 10210 12.so.0.10[.0] - * 1.2.11beta1-4 13 10211 12.so.0.11[.0] - * 1.0.19rc1-5 10 10019 10.so.0.19[.0] - * 1.2.11rc1-5 13 10211 12.so.0.11[.0] - * 1.0.19 10 10019 10.so.0.19[.0] - * 1.2.11 13 10211 12.so.0.11[.0] - * 1.0.20 10 10020 10.so.0.20[.0] - * 1.2.12 13 10212 12.so.0.12[.0] - * 1.2.13beta1 13 10213 12.so.0.13[.0] - * 1.0.21 10 10021 10.so.0.21[.0] - * 1.2.13 13 10213 12.so.0.13[.0] - * 1.2.14beta1-2 13 10214 12.so.0.14[.0] - * 1.0.22rc1 10 10022 10.so.0.22[.0] - * 1.2.14rc1 13 10214 12.so.0.14[.0] - * 1.0.22 10 10022 10.so.0.22[.0] - * 1.2.14 13 10214 12.so.0.14[.0] - * 1.2.15beta1-6 13 10215 12.so.0.15[.0] - * 1.0.23rc1-5 10 10023 10.so.0.23[.0] - * 1.2.15rc1-5 13 10215 12.so.0.15[.0] - * 1.0.23 10 10023 10.so.0.23[.0] - * 1.2.15 13 10215 12.so.0.15[.0] - * 1.2.16beta1-2 13 10216 12.so.0.16[.0] - * 1.2.16rc1 13 10216 12.so.0.16[.0] - * 1.0.24 10 10024 10.so.0.24[.0] - * 1.2.16 13 10216 12.so.0.16[.0] - * 1.2.17beta1-2 13 10217 12.so.0.17[.0] - * 1.0.25rc1 10 10025 10.so.0.25[.0] - * 1.2.17rc1-3 13 10217 12.so.0.17[.0] - * 1.0.25 10 10025 10.so.0.25[.0] - * 1.2.17 13 10217 12.so.0.17[.0] - * 1.0.26 10 10026 10.so.0.26[.0] - * 1.2.18 13 10218 12.so.0.18[.0] - * 1.2.19beta1-31 13 10219 12.so.0.19[.0] - * 1.0.27rc1-6 10 10027 10.so.0.27[.0] - * 1.2.19rc1-6 13 10219 12.so.0.19[.0] - * 1.0.27 10 10027 10.so.0.27[.0] - * 1.2.19 13 10219 12.so.0.19[.0] - * 1.2.20beta01-04 13 10220 12.so.0.20[.0] - * 1.0.28rc1-6 10 10028 10.so.0.28[.0] - * 1.2.20rc1-6 13 10220 12.so.0.20[.0] - * 1.0.28 10 10028 10.so.0.28[.0] - * 1.2.20 13 10220 12.so.0.20[.0] - * 1.2.21beta1-2 13 10221 12.so.0.21[.0] - * 1.2.21rc1-3 13 10221 12.so.0.21[.0] - * 1.0.29 10 10029 10.so.0.29[.0] - * 1.2.21 13 10221 12.so.0.21[.0] - * 1.2.22beta1-4 13 10222 12.so.0.22[.0] - * 1.0.30rc1 10 10030 10.so.0.30[.0] - * 1.2.22rc1 13 10222 12.so.0.22[.0] - * 1.0.30 10 10030 10.so.0.30[.0] - * 1.2.22 13 10222 12.so.0.22[.0] - * 1.2.23beta01-05 13 10223 12.so.0.23[.0] - * 1.2.23rc01 13 10223 12.so.0.23[.0] - * 1.2.23 13 10223 12.so.0.23[.0] - * 1.2.24beta01-02 13 10224 12.so.0.24[.0] - * 1.2.24rc01 13 10224 12.so.0.24[.0] - * 1.2.24 13 10224 12.so.0.24[.0] - * - * Henceforth the source version will match the shared-library major - * and minor numbers; the shared-library major version number will be - * used for changes in backward compatibility, as it is intended. The - * PNG_LIBPNG_VER macro, which is not used within libpng but is available - * for applications, is an unsigned integer of the form xyyzz corresponding - * to the source version x.y.z (leading zeros in y and z). Beta versions - * were given the previous public release number plus a letter, until - * version 1.0.6j; from then on they were given the upcoming public - * release number plus "betaNN" or "rcN". - * - * Binary incompatibility exists only when applications make direct access - * to the info_ptr or png_ptr members through png.h, and the compiled - * application is loaded with a different version of the library. - * - * DLLNUM will change each time there are forward or backward changes - * in binary compatibility (e.g., when a new feature is added). - * - * See libpng.txt or libpng.3 for more information. The PNG specification - * is available as a W3C Recommendation and as an ISO Specification, - * defines should NOT be changed. - */ -#define PNG_INFO_gAMA 0x0001 -#define PNG_INFO_sBIT 0x0002 -#define PNG_INFO_cHRM 0x0004 -#define PNG_INFO_PLTE 0x0008 -#define PNG_INFO_tRNS 0x0010 -#define PNG_INFO_bKGD 0x0020 -#define PNG_INFO_hIST 0x0040 -#define PNG_INFO_pHYs 0x0080 -#define PNG_INFO_oFFs 0x0100 -#define PNG_INFO_tIME 0x0200 -#define PNG_INFO_pCAL 0x0400 -#define PNG_INFO_sRGB 0x0800 /* GR-P, 0.96a */ -#define PNG_INFO_iCCP 0x1000 /* ESR, 1.0.6 */ -#define PNG_INFO_sPLT 0x2000 /* ESR, 1.0.6 */ -#define PNG_INFO_sCAL 0x4000 /* ESR, 1.0.6 */ -#define PNG_INFO_IDAT 0x8000L /* ESR, 1.0.6 */ - -/* This is used for the transformation routines, as some of them - * change these values for the row. It also should enable using - * the routines for other purposes. - */ -typedef struct png_row_info_struct -{ - png_uint_32 width; /* width of row */ - png_uint_32 rowbytes; /* number of bytes in row */ - png_byte color_type; /* color type of row */ - png_byte bit_depth; /* bit depth of row */ - png_byte channels; /* number of channels (1, 2, 3, or 4) */ - png_byte pixel_depth; /* bits per pixel (depth * channels) */ -} png_row_info; - -typedef png_row_info FAR * png_row_infop; -typedef png_row_info FAR * FAR * png_row_infopp; - -/* These are the function types for the I/O functions and for the functions - * that allow the user to override the default I/O functions with his or her - * own. The png_error_ptr type should match that of user-supplied warning - * and error functions, while the png_rw_ptr type should match that of the - * user read/write data functions. - */ -typedef struct png_struct_def png_struct; -typedef png_struct FAR * png_structp; - -typedef void (PNGAPI *png_error_ptr) PNGARG((png_structp, png_const_charp)); -typedef void (PNGAPI *png_rw_ptr) PNGARG((png_structp, png_bytep, png_size_t)); -typedef void (PNGAPI *png_flush_ptr) PNGARG((png_structp)); -typedef void (PNGAPI *png_read_status_ptr) PNGARG((png_structp, png_uint_32, - int)); -typedef void (PNGAPI *png_write_status_ptr) PNGARG((png_structp, png_uint_32, - int)); - -#ifdef PNG_PROGRESSIVE_READ_SUPPORTED -typedef void (PNGAPI *png_progressive_info_ptr) PNGARG((png_structp, png_infop)); -typedef void (PNGAPI *png_progressive_end_ptr) PNGARG((png_structp, png_infop)); -typedef void (PNGAPI *png_progressive_row_ptr) PNGARG((png_structp, png_bytep, - png_uint_32, int)); -#endif - -#if defined(PNG_READ_USER_TRANSFORM_SUPPORTED) || \ - defined(PNG_WRITE_USER_TRANSFORM_SUPPORTED) || \ - defined(PNG_LEGACY_SUPPORTED) -typedef void (PNGAPI *png_user_transform_ptr) PNGARG((png_structp, - png_row_infop, png_bytep)); -#endif - -#if defined(PNG_USER_CHUNKS_SUPPORTED) -typedef int (PNGAPI *png_user_chunk_ptr) PNGARG((png_structp, png_unknown_chunkp)); -#endif -#if defined(PNG_UNKNOWN_CHUNKS_SUPPORTED) -typedef void (PNGAPI *png_unknown_chunk_ptr) PNGARG((png_structp)); -#endif - -/* Transform masks for the high-level interface */ -#define PNG_TRANSFORM_IDENTITY 0x0000 /* read and write */ -#define PNG_TRANSFORM_STRIP_16 0x0001 /* read only */ -#define PNG_TRANSFORM_STRIP_ALPHA 0x0002 /* read only */ -#define PNG_TRANSFORM_PACKING 0x0004 /* read and write */ -#define PNG_TRANSFORM_PACKSWAP 0x0008 /* read and write */ -#define PNG_TRANSFORM_EXPAND 0x0010 /* read only */ -#define PNG_TRANSFORM_INVERT_MONO 0x0020 /* read and write */ -#define PNG_TRANSFORM_SHIFT 0x0040 /* read and write */ -#define PNG_TRANSFORM_BGR 0x0080 /* read and write */ -#define PNG_TRANSFORM_SWAP_ALPHA 0x0100 /* read and write */ -#define PNG_TRANSFORM_SWAP_ENDIAN 0x0200 /* read and write */ -#define PNG_TRANSFORM_INVERT_ALPHA 0x0400 /* read and write */ -#define PNG_TRANSFORM_STRIP_FILLER 0x0800 /* WRITE only */ - -/* Flags for MNG supported features */ -#define PNG_FLAG_MNG_EMPTY_PLTE 0x01 -#define PNG_FLAG_MNG_FILTER_64 0x04 -#define PNG_ALL_MNG_FEATURES 0x05 - -typedef png_voidp (*png_malloc_ptr) PNGARG((png_structp, png_size_t)); -typedef void (*png_free_ptr) PNGARG((png_structp, png_voidp)); - -/* The structure that holds the information to read and write PNG files. - * The only people who need to care about what is inside of this are the - * people who will be modifying the library for their own special needs. - * It should NOT be accessed directly by an application, except to store - * the jmp_buf. - */ - -struct png_struct_def -{ -#ifdef PNG_SETJMP_SUPPORTED - jmp_buf jmpbuf; /* used in png_error */ -#endif - png_error_ptr error_fn; /* function for printing errors and aborting */ - png_error_ptr warning_fn; /* function for printing warnings */ - png_voidp error_ptr; /* user supplied struct for error functions */ - png_rw_ptr write_data_fn; /* function for writing output data */ - png_rw_ptr read_data_fn; /* function for reading input data */ - png_voidp io_ptr; /* ptr to application struct for I/O functions */ - -#if defined(PNG_READ_USER_TRANSFORM_SUPPORTED) - png_user_transform_ptr read_user_transform_fn; /* user read transform */ -#endif - -#if defined(PNG_WRITE_USER_TRANSFORM_SUPPORTED) - png_user_transform_ptr write_user_transform_fn; /* user write transform */ -#endif - -/* These were added in libpng-1.0.2 */ -#if defined(PNG_USER_TRANSFORM_PTR_SUPPORTED) -#if defined(PNG_READ_USER_TRANSFORM_SUPPORTED) || \ - defined(PNG_WRITE_USER_TRANSFORM_SUPPORTED) - png_voidp user_transform_ptr; /* user supplied struct for user transform */ - png_byte user_transform_depth; /* bit depth of user transformed pixels */ - png_byte user_transform_channels; /* channels in user transformed pixels */ -#endif -#endif - - png_uint_32 mode; /* tells us where we are in the PNG file */ - png_uint_32 flags; /* flags indicating various things to libpng */ - png_uint_32 transformations; /* which transformations to perform */ - - z_stream zstream; /* pointer to decompression structure (below) */ - png_bytep zbuf; /* buffer for zlib */ - png_size_t zbuf_size; /* size of zbuf */ - int zlib_level; /* holds zlib compression level */ - int zlib_method; /* holds zlib compression method */ - int zlib_window_bits; /* holds zlib compression window bits */ - int zlib_mem_level; /* holds zlib compression memory level */ - int zlib_strategy; /* holds zlib compression strategy */ - - png_uint_32 width; /* width of image in pixels */ - png_uint_32 height; /* height of image in pixels */ - png_uint_32 num_rows; /* number of rows in current pass */ - png_uint_32 usr_width; /* width of row at start of write */ - png_uint_32 rowbytes; /* size of row in bytes */ - png_uint_32 irowbytes; /* size of current interlaced row in bytes */ - png_uint_32 iwidth; /* width of current interlaced row in pixels */ - png_uint_32 row_number; /* current row in interlace pass */ - png_bytep prev_row; /* buffer to save previous (unfiltered) row */ - png_bytep row_buf; /* buffer to save current (unfiltered) row */ -#ifndef PNG_NO_WRITE_FILTERING - png_bytep sub_row; /* buffer to save "sub" row when filtering */ - png_bytep up_row; /* buffer to save "up" row when filtering */ - png_bytep avg_row; /* buffer to save "avg" row when filtering */ - png_bytep paeth_row; /* buffer to save "Paeth" row when filtering */ -#endif - png_row_info row_info; /* used for transformation routines */ - - png_uint_32 idat_size; /* current IDAT size for read */ - png_uint_32 crc; /* current chunk CRC value */ - png_colorp palette; /* palette from the input file */ - png_uint_16 num_palette; /* number of color entries in palette */ - png_uint_16 num_trans; /* number of transparency values */ - png_byte chunk_name[5]; /* null-terminated name of current chunk */ - png_byte compression; /* file compression type (always 0) */ - png_byte filter; /* file filter type (always 0) */ - png_byte interlaced; /* PNG_INTERLACE_NONE, PNG_INTERLACE_ADAM7 */ - png_byte pass; /* current interlace pass (0 - 6) */ - png_byte do_filter; /* row filter flags (see PNG_FILTER_ below ) */ - png_byte color_type; /* color type of file */ - png_byte bit_depth; /* bit depth of file */ - png_byte usr_bit_depth; /* bit depth of users row */ - png_byte pixel_depth; /* number of bits per pixel */ - png_byte channels; /* number of channels in file */ - png_byte usr_channels; /* channels at start of write */ - png_byte sig_bytes; /* magic bytes read/written from start of file */ - -#if defined(PNG_READ_FILLER_SUPPORTED) || defined(PNG_WRITE_FILLER_SUPPORTED) -#ifdef PNG_LEGACY_SUPPORTED - png_byte filler; /* filler byte for pixel expansion */ -#else - png_uint_16 filler; /* filler bytes for pixel expansion */ -#endif -#endif - -#if defined(PNG_bKGD_SUPPORTED) - png_byte background_gamma_type; -# ifdef PNG_FLOATING_POINT_SUPPORTED - float background_gamma; -# endif - png_color_16 background; /* background color in screen gamma space */ -#if defined(PNG_READ_GAMMA_SUPPORTED) - png_color_16 background_1; /* background normalized to gamma 1.0 */ -#endif -#endif /* PNG_bKGD_SUPPORTED */ - -#if defined(PNG_WRITE_FLUSH_SUPPORTED) - png_flush_ptr output_flush_fn;/* Function for flushing output */ - png_uint_32 flush_dist; /* how many rows apart to flush, 0 - no flush */ - png_uint_32 flush_rows; /* number of rows written since last flush */ -#endif - -#if defined(PNG_READ_GAMMA_SUPPORTED) || defined(PNG_READ_BACKGROUND_SUPPORTED) - int gamma_shift; /* number of "insignificant" bits 16-bit gamma */ -#ifdef PNG_FLOATING_POINT_SUPPORTED - float gamma; /* file gamma value */ - float screen_gamma; /* screen gamma value (display_exponent) */ -#endif -#endif - -#if defined(PNG_READ_GAMMA_SUPPORTED) || defined(PNG_READ_BACKGROUND_SUPPORTED) - png_bytep gamma_table; /* gamma table for 8-bit depth files */ - png_bytep gamma_from_1; /* converts from 1.0 to screen */ - png_bytep gamma_to_1; /* converts from file to 1.0 */ - png_uint_16pp gamma_16_table; /* gamma table for 16-bit depth files */ - png_uint_16pp gamma_16_from_1; /* converts from 1.0 to screen */ - png_uint_16pp gamma_16_to_1; /* converts from file to 1.0 */ -#endif - -#if defined(PNG_READ_GAMMA_SUPPORTED) || defined(PNG_sBIT_SUPPORTED) - png_color_8 sig_bit; /* significant bits in each available channel */ -#endif - -#if defined(PNG_READ_SHIFT_SUPPORTED) || defined(PNG_WRITE_SHIFT_SUPPORTED) - png_color_8 shift; /* shift for significant bit tranformation */ -#endif - -#if defined(PNG_tRNS_SUPPORTED) || defined(PNG_READ_BACKGROUND_SUPPORTED) \ - || defined(PNG_READ_EXPAND_SUPPORTED) || defined(PNG_READ_BACKGROUND_SUPPORTED) - png_bytep trans; /* transparency values for paletted files */ - png_color_16 trans_values; /* transparency values for non-paletted files */ -#endif - - png_read_status_ptr read_row_fn; /* called after each row is decoded */ - png_write_status_ptr write_row_fn; /* called after each row is encoded */ -#ifdef PNG_PROGRESSIVE_READ_SUPPORTED - png_progressive_info_ptr info_fn; /* called after header data fully read */ - png_progressive_row_ptr row_fn; /* called after each prog. row is decoded */ - png_progressive_end_ptr end_fn; /* called after image is complete */ - png_bytep save_buffer_ptr; /* current location in save_buffer */ - png_bytep save_buffer; /* buffer for previously read data */ - png_bytep current_buffer_ptr; /* current location in current_buffer */ - png_bytep current_buffer; /* buffer for recently used data */ - png_uint_32 push_length; /* size of current input chunk */ - png_uint_32 skip_length; /* bytes to skip in input data */ - png_size_t save_buffer_size; /* amount of data now in save_buffer */ - png_size_t save_buffer_max; /* total size of save_buffer */ - png_size_t buffer_size; /* total amount of available input data */ - png_size_t current_buffer_size; /* amount of data now in current_buffer */ - int process_mode; /* what push library is currently doing */ - int cur_palette; /* current push library palette index */ - -# if defined(PNG_TEXT_SUPPORTED) - png_size_t current_text_size; /* current size of text input data */ - png_size_t current_text_left; /* how much text left to read in input */ - png_charp current_text; /* current text chunk buffer */ - png_charp current_text_ptr; /* current location in current_text */ -# endif /* PNG_TEXT_SUPPORTED */ -#endif /* PNG_PROGRESSIVE_READ_SUPPORTED */ - -#if defined(__TURBOC__) && !defined(_Windows) && !defined(__FLAT__) -/* for the Borland special 64K segment handler */ - png_bytepp offset_table_ptr; - png_bytep offset_table; - png_uint_16 offset_table_number; - png_uint_16 offset_table_count; - png_uint_16 offset_table_count_free; -#endif - -#if defined(PNG_READ_DITHER_SUPPORTED) - png_bytep palette_lookup; /* lookup table for dithering */ - png_bytep dither_index; /* index translation for palette files */ -#endif - -#if defined(PNG_READ_DITHER_SUPPORTED) || defined(PNG_hIST_SUPPORTED) - png_uint_16p hist; /* histogram */ -#endif - -#if defined(PNG_WRITE_WEIGHTED_FILTER_SUPPORTED) - png_byte heuristic_method; /* heuristic for row filter selection */ - png_byte num_prev_filters; /* number of weights for previous rows */ - png_bytep prev_filters; /* filter type(s) of previous row(s) */ - png_uint_16p filter_weights; /* weight(s) for previous line(s) */ - png_uint_16p inv_filter_weights; /* 1/weight(s) for previous line(s) */ - png_uint_16p filter_costs; /* relative filter calculation cost */ - png_uint_16p inv_filter_costs; /* 1/relative filter calculation cost */ -#endif - -#if defined(PNG_TIME_RFC1123_SUPPORTED) - png_charp time_buffer; /* String to hold RFC 1123 time text */ -#endif - -/* New members added in libpng-1.0.6 */ - -#ifdef PNG_FREE_ME_SUPPORTED - png_uint_32 free_me; /* flags items libpng is responsible for freeing */ -#endif - -#if defined(PNG_USER_CHUNKS_SUPPORTED) - png_voidp user_chunk_ptr; - png_user_chunk_ptr read_user_chunk_fn; /* user read chunk handler */ -#endif - -#if defined(PNG_UNKNOWN_CHUNKS_SUPPORTED) - int num_chunk_list; - png_bytep chunk_list; -#endif - -/* New members added in libpng-1.0.3 */ -#if defined(PNG_READ_RGB_TO_GRAY_SUPPORTED) - png_byte rgb_to_gray_status; - /* These were changed from png_byte in libpng-1.0.6 */ - png_uint_16 rgb_to_gray_red_coeff; - png_uint_16 rgb_to_gray_green_coeff; - png_uint_16 rgb_to_gray_blue_coeff; -#endif - -/* New member added in libpng-1.0.4 (renamed in 1.0.9) */ -#if defined(PNG_MNG_FEATURES_SUPPORTED) || \ - defined(PNG_READ_EMPTY_PLTE_SUPPORTED) || \ - defined(PNG_WRITE_EMPTY_PLTE_SUPPORTED) -/* changed from png_byte to png_uint_32 at version 1.2.0 */ -#ifdef PNG_1_0_X - png_byte mng_features_permitted; -#else - png_uint_32 mng_features_permitted; -#endif /* PNG_1_0_X */ -#endif - -/* New member added in libpng-1.0.7 */ -#if defined(PNG_READ_GAMMA_SUPPORTED) || defined(PNG_READ_BACKGROUND_SUPPORTED) - png_fixed_point int_gamma; -#endif - -/* New member added in libpng-1.0.9, ifdef'ed out in 1.0.12, enabled in 1.2.0 */ -#if defined(PNG_MNG_FEATURES_SUPPORTED) - png_byte filter_type; -#endif - -#if defined(PNG_1_0_X) -/* New member added in libpng-1.0.10, ifdef'ed out in 1.2.0 */ - png_uint_32 row_buf_size; -#endif - -/* New members added in libpng-1.2.0 */ -#if defined(PNG_ASSEMBLER_CODE_SUPPORTED) -# if !defined(PNG_1_0_X) -# if defined(PNG_MMX_CODE_SUPPORTED) - png_byte mmx_bitdepth_threshold; - png_uint_32 mmx_rowbytes_threshold; -# endif - png_uint_32 asm_flags; -# endif -#endif - -/* New members added in libpng-1.0.2 but first enabled by default in 1.2.0 */ -#ifdef PNG_USER_MEM_SUPPORTED - png_voidp mem_ptr; /* user supplied struct for mem functions */ - png_malloc_ptr malloc_fn; /* function for allocating memory */ - png_free_ptr free_fn; /* function for freeing memory */ -#endif - -/* New member added in libpng-1.0.13 and 1.2.0 */ - png_bytep big_row_buf; /* buffer to save current (unfiltered) row */ - -#if defined(PNG_READ_DITHER_SUPPORTED) -/* The following three members were added at version 1.0.14 and 1.2.4 */ - png_bytep dither_sort; /* working sort array */ - png_bytep index_to_palette; /* where the original index currently is */ - /* in the palette */ - png_bytep palette_to_index; /* which original index points to this */ - /* palette color */ -#endif - -/* New members added in libpng-1.0.16 and 1.2.6 */ - png_byte compression_type; - -#ifdef PNG_SET_USER_LIMITS_SUPPORTED - png_uint_32 user_width_max; - png_uint_32 user_height_max; -#endif - -/* New member added in libpng-1.0.25 and 1.2.17 */ -#if defined(PNG_UNKNOWN_CHUNKS_SUPPORTED) - /* storage for unknown chunk that the library doesn't recognize. */ - png_unknown_chunk unknown_chunk; -#endif -}; - - -/* This triggers a compiler error in png.c, if png.c and png.h - * do not agree upon the version number. - */ -typedef png_structp version_1_2_24; - -typedef png_struct FAR * FAR * png_structpp; - -/* Here are the function definitions most commonly used. This is not - * the place to find out how to use libpng. See libpng.txt for the - * full explanation, see example.c for the summary. This just provides - * a simple one line description of the use of each function. - */ - -/* Returns the version number of the library */ -extern PNG_EXPORT(png_uint_32,png_access_version_number) PNGARG((void)); - -/* Tell lib we have already handled the first magic bytes. - * Handling more than 8 bytes from the beginning of the file is an error. - */ -extern PNG_EXPORT(void,png_set_sig_bytes) PNGARG((png_structp png_ptr, - int num_bytes)); - -/* Check sig[start] through sig[start + num_to_check - 1] to see if it's a - * PNG file. Returns zero if the supplied bytes match the 8-byte PNG - * signature, and non-zero otherwise. Having num_to_check == 0 or - * start > 7 will always fail (ie return non-zero). - */ -extern PNG_EXPORT(int,png_sig_cmp) PNGARG((png_bytep sig, png_size_t start, - png_size_t num_to_check)); - -/* Simple signature checking function. This is the same as calling - * png_check_sig(sig, n) := !png_sig_cmp(sig, 0, n). - */ -extern PNG_EXPORT(int,png_check_sig) PNGARG((png_bytep sig, int num)); - -/* Allocate and initialize png_ptr struct for reading, and any other memory. */ -extern PNG_EXPORT(png_structp,png_create_read_struct) - PNGARG((png_const_charp user_png_ver, png_voidp error_ptr, - png_error_ptr error_fn, png_error_ptr warn_fn)); - -/* Allocate and initialize png_ptr struct for writing, and any other memory */ -extern PNG_EXPORT(png_structp,png_create_write_struct) - PNGARG((png_const_charp user_png_ver, png_voidp error_ptr, - png_error_ptr error_fn, png_error_ptr warn_fn)); - -#ifdef PNG_WRITE_SUPPORTED -extern PNG_EXPORT(png_uint_32,png_get_compression_buffer_size) - PNGARG((png_structp png_ptr)); -#endif - -#ifdef PNG_WRITE_SUPPORTED -extern PNG_EXPORT(void,png_set_compression_buffer_size) - PNGARG((png_structp png_ptr, png_uint_32 size)); -#endif - -/* Reset the compression stream */ -extern PNG_EXPORT(int,png_reset_zstream) PNGARG((png_structp png_ptr)); - -/* New functions added in libpng-1.0.2 (not enabled by default until 1.2.0) */ -#ifdef PNG_USER_MEM_SUPPORTED -extern PNG_EXPORT(png_structp,png_create_read_struct_2) - PNGARG((png_const_charp user_png_ver, png_voidp error_ptr, - png_error_ptr error_fn, png_error_ptr warn_fn, png_voidp mem_ptr, - png_malloc_ptr malloc_fn, png_free_ptr free_fn)); -extern PNG_EXPORT(png_structp,png_create_write_struct_2) - PNGARG((png_const_charp user_png_ver, png_voidp error_ptr, - png_error_ptr error_fn, png_error_ptr warn_fn, png_voidp mem_ptr, - png_malloc_ptr malloc_fn, png_free_ptr free_fn)); -#endif - -/* Write a PNG chunk - size, type, (optional) data, CRC. */ -extern PNG_EXPORT(void,png_write_chunk) PNGARG((png_structp png_ptr, - png_bytep chunk_name, png_bytep data, png_size_t length)); - -/* Write the start of a PNG chunk - length and chunk name. */ -extern PNG_EXPORT(void,png_write_chunk_start) PNGARG((png_structp png_ptr, - png_bytep chunk_name, png_uint_32 length)); - -/* Write the data of a PNG chunk started with png_write_chunk_start(). */ -extern PNG_EXPORT(void,png_write_chunk_data) PNGARG((png_structp png_ptr, - png_bytep data, png_size_t length)); - -/* Finish a chunk started with png_write_chunk_start() (includes CRC). */ -extern PNG_EXPORT(void,png_write_chunk_end) PNGARG((png_structp png_ptr)); - -/* Allocate and initialize the info structure */ -extern PNG_EXPORT(png_infop,png_create_info_struct) - PNGARG((png_structp png_ptr)); - -#if defined(PNG_1_0_X) || defined (PNG_1_2_X) -/* Initialize the info structure (old interface - DEPRECATED) */ -extern PNG_EXPORT(void,png_info_init) PNGARG((png_infop info_ptr)); -#undef png_info_init -#define png_info_init(info_ptr) png_info_init_3(&info_ptr,\ - png_sizeof(png_info)); -#endif - -extern PNG_EXPORT(void,png_info_init_3) PNGARG((png_infopp info_ptr, - png_size_t png_info_struct_size)); - -/* Writes all the PNG information before the image. */ -extern PNG_EXPORT(void,png_write_info_before_PLTE) PNGARG((png_structp png_ptr, - png_infop info_ptr)); -extern PNG_EXPORT(void,png_write_info) PNGARG((png_structp png_ptr, - png_infop info_ptr)); - -#ifndef PNG_NO_SEQUENTIAL_READ_SUPPORTED -/* read the information before the actual image data. */ -extern PNG_EXPORT(void,png_read_info) PNGARG((png_structp png_ptr, - png_infop info_ptr)); -#endif - -#if defined(PNG_TIME_RFC1123_SUPPORTED) -extern PNG_EXPORT(png_charp,png_convert_to_rfc1123) - PNGARG((png_structp png_ptr, png_timep ptime)); -#endif - -#if !defined(_WIN32_WCE) -/* "time.h" functions are not supported on WindowsCE */ -#if defined(PNG_WRITE_tIME_SUPPORTED) -/* convert from a struct tm to png_time */ -extern PNG_EXPORT(void,png_convert_from_struct_tm) PNGARG((png_timep ptime, - struct tm FAR * ttime)); - -/* convert from time_t to png_time. Uses gmtime() */ -extern PNG_EXPORT(void,png_convert_from_time_t) PNGARG((png_timep ptime, - time_t ttime)); -#endif /* PNG_WRITE_tIME_SUPPORTED */ -#endif /* _WIN32_WCE */ - -#if defined(PNG_READ_EXPAND_SUPPORTED) -/* Expand data to 24-bit RGB, or 8-bit grayscale, with alpha if available. */ -extern PNG_EXPORT(void,png_set_expand) PNGARG((png_structp png_ptr)); -#if !defined(PNG_1_0_X) -extern PNG_EXPORT(void,png_set_expand_gray_1_2_4_to_8) PNGARG((png_structp - png_ptr)); -#endif -extern PNG_EXPORT(void,png_set_palette_to_rgb) PNGARG((png_structp png_ptr)); -extern PNG_EXPORT(void,png_set_tRNS_to_alpha) PNGARG((png_structp png_ptr)); -#if defined(PNG_1_0_X) || defined (PNG_1_2_X) -/* Deprecated */ -extern PNG_EXPORT(void,png_set_gray_1_2_4_to_8) PNGARG((png_structp png_ptr)); -#endif -#endif - -#if defined(PNG_READ_BGR_SUPPORTED) || defined(PNG_WRITE_BGR_SUPPORTED) -/* Use blue, green, red order for pixels. */ -extern PNG_EXPORT(void,png_set_bgr) PNGARG((png_structp png_ptr)); -#endif - -#if defined(PNG_READ_GRAY_TO_RGB_SUPPORTED) -/* Expand the grayscale to 24-bit RGB if necessary. */ -extern PNG_EXPORT(void,png_set_gray_to_rgb) PNGARG((png_structp png_ptr)); -#endif - -#if defined(PNG_READ_RGB_TO_GRAY_SUPPORTED) -/* Reduce RGB to grayscale. */ -#ifdef PNG_FLOATING_POINT_SUPPORTED -extern PNG_EXPORT(void,png_set_rgb_to_gray) PNGARG((png_structp png_ptr, - int error_action, double red, double green )); -#endif -extern PNG_EXPORT(void,png_set_rgb_to_gray_fixed) PNGARG((png_structp png_ptr, - int error_action, png_fixed_point red, png_fixed_point green )); -extern PNG_EXPORT(png_byte,png_get_rgb_to_gray_status) PNGARG((png_structp - png_ptr)); -#endif - -extern PNG_EXPORT(void,png_build_grayscale_palette) PNGARG((int bit_depth, - png_colorp palette)); - -#if defined(PNG_READ_STRIP_ALPHA_SUPPORTED) -extern PNG_EXPORT(void,png_set_strip_alpha) PNGARG((png_structp png_ptr)); -#endif - -#if defined(PNG_READ_SWAP_ALPHA_SUPPORTED) || \ - defined(PNG_WRITE_SWAP_ALPHA_SUPPORTED) -extern PNG_EXPORT(void,png_set_swap_alpha) PNGARG((png_structp png_ptr)); -#endif - -#if defined(PNG_READ_INVERT_ALPHA_SUPPORTED) || \ - defined(PNG_WRITE_INVERT_ALPHA_SUPPORTED) -extern PNG_EXPORT(void,png_set_invert_alpha) PNGARG((png_structp png_ptr)); -#endif - -#if defined(PNG_READ_FILLER_SUPPORTED) || defined(PNG_WRITE_FILLER_SUPPORTED) -/* Add a filler byte to 8-bit Gray or 24-bit RGB images. */ -extern PNG_EXPORT(void,png_set_filler) PNGARG((png_structp png_ptr, - png_uint_32 filler, int flags)); -/* The values of the PNG_FILLER_ defines should NOT be changed */ -#define PNG_FILLER_BEFORE 0 -#define PNG_FILLER_AFTER 1 -/* Add an alpha byte to 8-bit Gray or 24-bit RGB images. */ -#if !defined(PNG_1_0_X) -extern PNG_EXPORT(void,png_set_add_alpha) PNGARG((png_structp png_ptr, - png_uint_32 filler, int flags)); -#endif -#endif /* PNG_READ_FILLER_SUPPORTED || PNG_WRITE_FILLER_SUPPORTED */ - -#if defined(PNG_READ_SWAP_SUPPORTED) || defined(PNG_WRITE_SWAP_SUPPORTED) -/* Swap bytes in 16-bit depth files. */ -extern PNG_EXPORT(void,png_set_swap) PNGARG((png_structp png_ptr)); -#endif - -#if defined(PNG_READ_PACK_SUPPORTED) || defined(PNG_WRITE_PACK_SUPPORTED) -/* Use 1 byte per pixel in 1, 2, or 4-bit depth files. */ -extern PNG_EXPORT(void,png_set_packing) PNGARG((png_structp png_ptr)); -#endif - -#if defined(PNG_READ_PACKSWAP_SUPPORTED) || defined(PNG_WRITE_PACKSWAP_SUPPORTED) -/* Swap packing order of pixels in bytes. */ -extern PNG_EXPORT(void,png_set_packswap) PNGARG((png_structp png_ptr)); -#endif - -#if defined(PNG_READ_SHIFT_SUPPORTED) || defined(PNG_WRITE_SHIFT_SUPPORTED) -/* Converts files to legal bit depths. */ -extern PNG_EXPORT(void,png_set_shift) PNGARG((png_structp png_ptr, - png_color_8p true_bits)); -#endif - -#if defined(PNG_READ_INTERLACING_SUPPORTED) || \ - defined(PNG_WRITE_INTERLACING_SUPPORTED) -/* Have the code handle the interlacing. Returns the number of passes. */ -extern PNG_EXPORT(int,png_set_interlace_handling) PNGARG((png_structp png_ptr)); -#endif - -#if defined(PNG_READ_INVERT_SUPPORTED) || defined(PNG_WRITE_INVERT_SUPPORTED) -/* Invert monochrome files */ -extern PNG_EXPORT(void,png_set_invert_mono) PNGARG((png_structp png_ptr)); -#endif - -#if defined(PNG_READ_BACKGROUND_SUPPORTED) -/* Handle alpha and tRNS by replacing with a background color. */ -#ifdef PNG_FLOATING_POINT_SUPPORTED -extern PNG_EXPORT(void,png_set_background) PNGARG((png_structp png_ptr, - png_color_16p background_color, int background_gamma_code, - int need_expand, double background_gamma)); -#endif -#define PNG_BACKGROUND_GAMMA_UNKNOWN 0 -#define PNG_BACKGROUND_GAMMA_SCREEN 1 -#define PNG_BACKGROUND_GAMMA_FILE 2 -#define PNG_BACKGROUND_GAMMA_UNIQUE 3 -#endif - -#if defined(PNG_READ_16_TO_8_SUPPORTED) -/* strip the second byte of information from a 16-bit depth file. */ -extern PNG_EXPORT(void,png_set_strip_16) PNGARG((png_structp png_ptr)); -#endif - -#if defined(PNG_READ_DITHER_SUPPORTED) -/* Turn on dithering, and reduce the palette to the number of colors available. */ -extern PNG_EXPORT(void,png_set_dither) PNGARG((png_structp png_ptr, - png_colorp palette, int num_palette, int maximum_colors, - png_uint_16p histogram, int full_dither)); -#endif - -#if defined(PNG_READ_GAMMA_SUPPORTED) -/* Handle gamma correction. Screen_gamma=(display_exponent) */ -#ifdef PNG_FLOATING_POINT_SUPPORTED -extern PNG_EXPORT(void,png_set_gamma) PNGARG((png_structp png_ptr, - double screen_gamma, double default_file_gamma)); -#endif -#endif - -#if defined(PNG_1_0_X) || defined (PNG_1_2_X) -#if defined(PNG_READ_EMPTY_PLTE_SUPPORTED) || \ - defined(PNG_WRITE_EMPTY_PLTE_SUPPORTED) -/* Permit or disallow empty PLTE (0: not permitted, 1: permitted) */ -/* Deprecated and will be removed. Use png_permit_mng_features() instead. */ -extern PNG_EXPORT(void,png_permit_empty_plte) PNGARG((png_structp png_ptr, - int empty_plte_permitted)); -#endif -#endif - -#if defined(PNG_WRITE_FLUSH_SUPPORTED) -/* Set how many lines between output flushes - 0 for no flushing */ -extern PNG_EXPORT(void,png_set_flush) PNGARG((png_structp png_ptr, int nrows)); -/* Flush the current PNG output buffer */ -extern PNG_EXPORT(void,png_write_flush) PNGARG((png_structp png_ptr)); -#endif - -/* optional update palette with requested transformations */ -extern PNG_EXPORT(void,png_start_read_image) PNGARG((png_structp png_ptr)); - -/* optional call to update the users info structure */ -extern PNG_EXPORT(void,png_read_update_info) PNGARG((png_structp png_ptr, - png_infop info_ptr)); - -#ifndef PNG_NO_SEQUENTIAL_READ_SUPPORTED -/* read one or more rows of image data. */ -extern PNG_EXPORT(void,png_read_rows) PNGARG((png_structp png_ptr, - png_bytepp row, png_bytepp display_row, png_uint_32 num_rows)); -#endif - -#ifndef PNG_NO_SEQUENTIAL_READ_SUPPORTED -/* read a row of data. */ -extern PNG_EXPORT(void,png_read_row) PNGARG((png_structp png_ptr, - png_bytep row, - png_bytep display_row)); -#endif - -#ifndef PNG_NO_SEQUENTIAL_READ_SUPPORTED -/* read the whole image into memory at once. */ -extern PNG_EXPORT(void,png_read_image) PNGARG((png_structp png_ptr, - png_bytepp image)); -#endif - -/* write a row of image data */ -extern PNG_EXPORT(void,png_write_row) PNGARG((png_structp png_ptr, - png_bytep row)); - -/* write a few rows of image data */ -extern PNG_EXPORT(void,png_write_rows) PNGARG((png_structp png_ptr, - png_bytepp row, png_uint_32 num_rows)); - -/* write the image data */ -extern PNG_EXPORT(void,png_write_image) PNGARG((png_structp png_ptr, - png_bytepp image)); - -/* writes the end of the PNG file. */ -extern PNG_EXPORT(void,png_write_end) PNGARG((png_structp png_ptr, - png_infop info_ptr)); - -#ifndef PNG_NO_SEQUENTIAL_READ_SUPPORTED -/* read the end of the PNG file. */ -extern PNG_EXPORT(void,png_read_end) PNGARG((png_structp png_ptr, - png_infop info_ptr)); -#endif - -/* free any memory associated with the png_info_struct */ -extern PNG_EXPORT(void,png_destroy_info_struct) PNGARG((png_structp png_ptr, - png_infopp info_ptr_ptr)); - -/* free any memory associated with the png_struct and the png_info_structs */ -extern PNG_EXPORT(void,png_destroy_read_struct) PNGARG((png_structpp - png_ptr_ptr, png_infopp info_ptr_ptr, png_infopp end_info_ptr_ptr)); - -/* free all memory used by the read (old method - NOT DLL EXPORTED) */ -extern void png_read_destroy PNGARG((png_structp png_ptr, png_infop info_ptr, - png_infop end_info_ptr)); - -/* free any memory associated with the png_struct and the png_info_structs */ -extern PNG_EXPORT(void,png_destroy_write_struct) - PNGARG((png_structpp png_ptr_ptr, png_infopp info_ptr_ptr)); - -/* free any memory used in png_ptr struct (old method - NOT DLL EXPORTED) */ -extern void png_write_destroy PNGARG((png_structp png_ptr)); - -/* set the libpng method of handling chunk CRC errors */ -extern PNG_EXPORT(void,png_set_crc_action) PNGARG((png_structp png_ptr, - int crit_action, int ancil_action)); - -/* Values for png_set_crc_action() to say how to handle CRC errors in - * ancillary and critical chunks, and whether to use the data contained - * therein. Note that it is impossible to "discard" data in a critical - * chunk. For versions prior to 0.90, the action was always error/quit, - * whereas in version 0.90 and later, the action for CRC errors in ancillary - * chunks is warn/discard. These values should NOT be changed. - * - * value action:critical action:ancillary - */ -#define PNG_CRC_DEFAULT 0 /* error/quit warn/discard data */ -#define PNG_CRC_ERROR_QUIT 1 /* error/quit error/quit */ -#define PNG_CRC_WARN_DISCARD 2 /* (INVALID) warn/discard data */ -#define PNG_CRC_WARN_USE 3 /* warn/use data warn/use data */ -#define PNG_CRC_QUIET_USE 4 /* quiet/use data quiet/use data */ -#define PNG_CRC_NO_CHANGE 5 /* use current value use current value */ - -/* These functions give the user control over the scan-line filtering in - * libpng and the compression methods used by zlib. These functions are - * mainly useful for testing, as the defaults should work with most users. - * Those users who are tight on memory or want faster performance at the - * expense of compression can modify them. See the compression library - * header file (zlib.h) for an explination of the compression functions. - */ - -/* set the filtering method(s) used by libpng. Currently, the only valid - * value for "method" is 0. - */ -extern PNG_EXPORT(void,png_set_filter) PNGARG((png_structp png_ptr, int method, - int filters)); - -/* Flags for png_set_filter() to say which filters to use. The flags - * are chosen so that they don't conflict with real filter types - * below, in case they are supplied instead of the #defined constants. - * These values should NOT be changed. - */ -#define PNG_NO_FILTERS 0x00 -#define PNG_FILTER_NONE 0x08 -#define PNG_FILTER_SUB 0x10 -#define PNG_FILTER_UP 0x20 -#define PNG_FILTER_AVG 0x40 -#define PNG_FILTER_PAETH 0x80 -#define PNG_ALL_FILTERS (PNG_FILTER_NONE | PNG_FILTER_SUB | PNG_FILTER_UP | \ - PNG_FILTER_AVG | PNG_FILTER_PAETH) - -/* Filter values (not flags) - used in pngwrite.c, pngwutil.c for now. - * These defines should NOT be changed. - */ -#define PNG_FILTER_VALUE_NONE 0 -#define PNG_FILTER_VALUE_SUB 1 -#define PNG_FILTER_VALUE_UP 2 -#define PNG_FILTER_VALUE_AVG 3 -#define PNG_FILTER_VALUE_PAETH 4 -#define PNG_FILTER_VALUE_LAST 5 - -#if defined(PNG_WRITE_WEIGHTED_FILTER_SUPPORTED) /* EXPERIMENTAL */ -/* The "heuristic_method" is given by one of the PNG_FILTER_HEURISTIC_ - * defines, either the default (minimum-sum-of-absolute-differences), or - * the experimental method (weighted-minimum-sum-of-absolute-differences). - * - * Weights are factors >= 1.0, indicating how important it is to keep the - * filter type consistent between rows. Larger numbers mean the current - * filter is that many times as likely to be the same as the "num_weights" - * previous filters. This is cumulative for each previous row with a weight. - * There needs to be "num_weights" values in "filter_weights", or it can be - * NULL if the weights aren't being specified. Weights have no influence on - * the selection of the first row filter. Well chosen weights can (in theory) - * improve the compression for a given image. - * - * Costs are factors >= 1.0 indicating the relative decoding costs of a - * filter type. Higher costs indicate more decoding expense, and are - * therefore less likely to be selected over a filter with lower computational - * costs. There needs to be a value in "filter_costs" for each valid filter - * type (given by PNG_FILTER_VALUE_LAST), or it can be NULL if you aren't - * setting the costs. Costs try to improve the speed of decompression without - * unduly increasing the compressed image size. - * - * A negative weight or cost indicates the default value is to be used, and - * values in the range [0.0, 1.0) indicate the value is to remain unchanged. - * The default values for both weights and costs are currently 1.0, but may - * change if good general weighting/cost heuristics can be found. If both - * the weights and costs are set to 1.0, this degenerates the WEIGHTED method - * to the UNWEIGHTED method, but with added encoding time/computation. - */ -#ifdef PNG_FLOATING_POINT_SUPPORTED -extern PNG_EXPORT(void,png_set_filter_heuristics) PNGARG((png_structp png_ptr, - int heuristic_method, int num_weights, png_doublep filter_weights, - png_doublep filter_costs)); -#endif -#endif /* PNG_WRITE_WEIGHTED_FILTER_SUPPORTED */ - -/* Heuristic used for row filter selection. These defines should NOT be - * changed. - */ -#define PNG_FILTER_HEURISTIC_DEFAULT 0 /* Currently "UNWEIGHTED" */ -#define PNG_FILTER_HEURISTIC_UNWEIGHTED 1 /* Used by libpng < 0.95 */ -#define PNG_FILTER_HEURISTIC_WEIGHTED 2 /* Experimental feature */ -#define PNG_FILTER_HEURISTIC_LAST 3 /* Not a valid value */ - -/* Set the library compression level. Currently, valid values range from - * 0 - 9, corresponding directly to the zlib compression levels 0 - 9 - * (0 - no compression, 9 - "maximal" compression). Note that tests have - * shown that zlib compression levels 3-6 usually perform as well as level 9 - * for PNG images, and do considerably fewer caclulations. In the future, - * these values may not correspond directly to the zlib compression levels. - */ -extern PNG_EXPORT(void,png_set_compression_level) PNGARG((png_structp png_ptr, - int level)); - -extern PNG_EXPORT(void,png_set_compression_mem_level) - PNGARG((png_structp png_ptr, int mem_level)); - -extern PNG_EXPORT(void,png_set_compression_strategy) - PNGARG((png_structp png_ptr, int strategy)); - -extern PNG_EXPORT(void,png_set_compression_window_bits) - PNGARG((png_structp png_ptr, int window_bits)); - -extern PNG_EXPORT(void,png_set_compression_method) PNGARG((png_structp png_ptr, - int method)); - -/* These next functions are called for input/output, memory, and error - * handling. They are in the file pngrio.c, pngwio.c, and pngerror.c, - * and call standard C I/O routines such as fread(), fwrite(), and - * fprintf(). These functions can be made to use other I/O routines - * at run time for those applications that need to handle I/O in a - * different manner by calling png_set_???_fn(). See libpng.txt for - * more information. - */ - -#if !defined(PNG_NO_STDIO) -/* Initialize the input/output for the PNG file to the default functions. */ -extern PNG_EXPORT(void,png_init_io) PNGARG((png_structp png_ptr, png_FILE_p fp)); -#endif - -/* Replace the (error and abort), and warning functions with user - * supplied functions. If no messages are to be printed you must still - * write and use replacement functions. The replacement error_fn should - * still do a longjmp to the last setjmp location if you are using this - * method of error handling. If error_fn or warning_fn is NULL, the - * default function will be used. - */ - -extern PNG_EXPORT(void,png_set_error_fn) PNGARG((png_structp png_ptr, - png_voidp error_ptr, png_error_ptr error_fn, png_error_ptr warning_fn)); - -/* Return the user pointer associated with the error functions */ -extern PNG_EXPORT(png_voidp,png_get_error_ptr) PNGARG((png_structp png_ptr)); - -/* Replace the default data output functions with a user supplied one(s). - * If buffered output is not used, then output_flush_fn can be set to NULL. - * If PNG_WRITE_FLUSH_SUPPORTED is not defined at libpng compile time - * output_flush_fn will be ignored (and thus can be NULL). - */ -extern PNG_EXPORT(void,png_set_write_fn) PNGARG((png_structp png_ptr, - png_voidp io_ptr, png_rw_ptr write_data_fn, png_flush_ptr output_flush_fn)); - -/* Replace the default data input function with a user supplied one. */ -extern PNG_EXPORT(void,png_set_read_fn) PNGARG((png_structp png_ptr, - png_voidp io_ptr, png_rw_ptr read_data_fn)); - -/* Return the user pointer associated with the I/O functions */ -extern PNG_EXPORT(png_voidp,png_get_io_ptr) PNGARG((png_structp png_ptr)); - -extern PNG_EXPORT(void,png_set_read_status_fn) PNGARG((png_structp png_ptr, - png_read_status_ptr read_row_fn)); - -extern PNG_EXPORT(void,png_set_write_status_fn) PNGARG((png_structp png_ptr, - png_write_status_ptr write_row_fn)); - -#ifdef PNG_USER_MEM_SUPPORTED -/* Replace the default memory allocation functions with user supplied one(s). */ -extern PNG_EXPORT(void,png_set_mem_fn) PNGARG((png_structp png_ptr, - png_voidp mem_ptr, png_malloc_ptr malloc_fn, png_free_ptr free_fn)); -/* Return the user pointer associated with the memory functions */ -extern PNG_EXPORT(png_voidp,png_get_mem_ptr) PNGARG((png_structp png_ptr)); -#endif - -#if defined(PNG_READ_USER_TRANSFORM_SUPPORTED) || \ - defined(PNG_LEGACY_SUPPORTED) -extern PNG_EXPORT(void,png_set_read_user_transform_fn) PNGARG((png_structp - png_ptr, png_user_transform_ptr read_user_transform_fn)); -#endif - -#if defined(PNG_WRITE_USER_TRANSFORM_SUPPORTED) || \ - defined(PNG_LEGACY_SUPPORTED) -extern PNG_EXPORT(void,png_set_write_user_transform_fn) PNGARG((png_structp - png_ptr, png_user_transform_ptr write_user_transform_fn)); -#endif - -#if defined(PNG_READ_USER_TRANSFORM_SUPPORTED) || \ - defined(PNG_WRITE_USER_TRANSFORM_SUPPORTED) || \ - defined(PNG_LEGACY_SUPPORTED) -extern PNG_EXPORT(void,png_set_user_transform_info) PNGARG((png_structp - png_ptr, png_voidp user_transform_ptr, int user_transform_depth, - int user_transform_channels)); -/* Return the user pointer associated with the user transform functions */ -extern PNG_EXPORT(png_voidp,png_get_user_transform_ptr) - PNGARG((png_structp png_ptr)); -#endif - -#ifdef PNG_USER_CHUNKS_SUPPORTED -extern PNG_EXPORT(void,png_set_read_user_chunk_fn) PNGARG((png_structp png_ptr, - png_voidp user_chunk_ptr, png_user_chunk_ptr read_user_chunk_fn)); -extern PNG_EXPORT(png_voidp,png_get_user_chunk_ptr) PNGARG((png_structp - png_ptr)); -#endif - -#ifdef PNG_PROGRESSIVE_READ_SUPPORTED -/* Sets the function callbacks for the push reader, and a pointer to a - * user-defined structure available to the callback functions. - */ -extern PNG_EXPORT(void,png_set_progressive_read_fn) PNGARG((png_structp png_ptr, - png_voidp progressive_ptr, - png_progressive_info_ptr info_fn, png_progressive_row_ptr row_fn, - png_progressive_end_ptr end_fn)); - -/* returns the user pointer associated with the push read functions */ -extern PNG_EXPORT(png_voidp,png_get_progressive_ptr) - PNGARG((png_structp png_ptr)); - -/* function to be called when data becomes available */ -extern PNG_EXPORT(void,png_process_data) PNGARG((png_structp png_ptr, - png_infop info_ptr, png_bytep buffer, png_size_t buffer_size)); - -/* function that combines rows. Not very much different than the - * png_combine_row() call. Is this even used????? - */ -extern PNG_EXPORT(void,png_progressive_combine_row) PNGARG((png_structp png_ptr, - png_bytep old_row, png_bytep new_row)); -#endif /* PNG_PROGRESSIVE_READ_SUPPORTED */ - -extern PNG_EXPORT(png_voidp,png_malloc) PNGARG((png_structp png_ptr, - png_uint_32 size)); - -#if defined(PNG_1_0_X) -# define png_malloc_warn png_malloc -#else -/* Added at libpng version 1.2.4 */ -extern PNG_EXPORT(png_voidp,png_malloc_warn) PNGARG((png_structp png_ptr, - png_uint_32 size)); -#endif - -/* frees a pointer allocated by png_malloc() */ -extern PNG_EXPORT(void,png_free) PNGARG((png_structp png_ptr, png_voidp ptr)); - -#if defined(PNG_1_0_X) -/* Function to allocate memory for zlib. */ -extern PNG_EXPORT(voidpf,png_zalloc) PNGARG((voidpf png_ptr, uInt items, - uInt size)); - -/* Function to free memory for zlib */ -extern PNG_EXPORT(void,png_zfree) PNGARG((voidpf png_ptr, voidpf ptr)); -#endif - -/* Free data that was allocated internally */ -extern PNG_EXPORT(void,png_free_data) PNGARG((png_structp png_ptr, - png_infop info_ptr, png_uint_32 free_me, int num)); -#ifdef PNG_FREE_ME_SUPPORTED -/* Reassign responsibility for freeing existing data, whether allocated - * by libpng or by the application */ -extern PNG_EXPORT(void,png_data_freer) PNGARG((png_structp png_ptr, - png_infop info_ptr, int freer, png_uint_32 mask)); -#endif -/* assignments for png_data_freer */ -#define PNG_DESTROY_WILL_FREE_DATA 1 -#define PNG_SET_WILL_FREE_DATA 1 -#define PNG_USER_WILL_FREE_DATA 2 -/* Flags for png_ptr->free_me and info_ptr->free_me */ -#define PNG_FREE_HIST 0x0008 -#define PNG_FREE_ICCP 0x0010 -#define PNG_FREE_SPLT 0x0020 -#define PNG_FREE_ROWS 0x0040 -#define PNG_FREE_PCAL 0x0080 -#define PNG_FREE_SCAL 0x0100 -#define PNG_FREE_UNKN 0x0200 -#define PNG_FREE_LIST 0x0400 -#define PNG_FREE_PLTE 0x1000 -#define PNG_FREE_TRNS 0x2000 -#define PNG_FREE_TEXT 0x4000 -#define PNG_FREE_ALL 0x7fff -#define PNG_FREE_MUL 0x4220 /* PNG_FREE_SPLT|PNG_FREE_TEXT|PNG_FREE_UNKN */ - -#ifdef PNG_USER_MEM_SUPPORTED -extern PNG_EXPORT(png_voidp,png_malloc_default) PNGARG((png_structp png_ptr, - png_uint_32 size)); -extern PNG_EXPORT(void,png_free_default) PNGARG((png_structp png_ptr, - png_voidp ptr)); -#endif - -extern PNG_EXPORT(png_voidp,png_memcpy_check) PNGARG((png_structp png_ptr, - png_voidp s1, png_voidp s2, png_uint_32 size)); - -extern PNG_EXPORT(png_voidp,png_memset_check) PNGARG((png_structp png_ptr, - png_voidp s1, int value, png_uint_32 size)); - -#if defined(USE_FAR_KEYWORD) /* memory model conversion function */ -extern void *png_far_to_near PNGARG((png_structp png_ptr,png_voidp ptr, - int check)); -#endif /* USE_FAR_KEYWORD */ - -#ifndef PNG_NO_ERROR_TEXT -/* Fatal error in PNG image of libpng - can't continue */ -extern PNG_EXPORT(void,png_error) PNGARG((png_structp png_ptr, - png_const_charp error_message)); - -/* The same, but the chunk name is prepended to the error string. */ -extern PNG_EXPORT(void,png_chunk_error) PNGARG((png_structp png_ptr, - png_const_charp error_message)); -#else -/* Fatal error in PNG image of libpng - can't continue */ -extern PNG_EXPORT(void,png_err) PNGARG((png_structp png_ptr)); -#endif - -#ifndef PNG_NO_WARNINGS -/* Non-fatal error in libpng. Can continue, but may have a problem. */ -extern PNG_EXPORT(void,png_warning) PNGARG((png_structp png_ptr, - png_const_charp warning_message)); - -#ifdef PNG_READ_SUPPORTED -/* Non-fatal error in libpng, chunk name is prepended to message. */ -extern PNG_EXPORT(void,png_chunk_warning) PNGARG((png_structp png_ptr, - png_const_charp warning_message)); -#endif /* PNG_READ_SUPPORTED */ -#endif /* PNG_NO_WARNINGS */ - -/* The png_set_ functions are for storing values in the png_info_struct. - * Similarly, the png_get_ calls are used to read values from the - * png_info_struct, either storing the parameters in the passed variables, or - * setting pointers into the png_info_struct where the data is stored. The - * png_get_ functions return a non-zero value if the data was available - * in info_ptr, or return zero and do not change any of the parameters if the - * data was not available. - * - * These functions should be used instead of directly accessing png_info - * to avoid problems with future changes in the size and internal layout of - * png_info_struct. - */ -/* Returns "flag" if chunk data is valid in info_ptr. */ -extern PNG_EXPORT(png_uint_32,png_get_valid) PNGARG((png_structp png_ptr, -png_infop info_ptr, png_uint_32 flag)); - -/* Returns number of bytes needed to hold a transformed row. */ -extern PNG_EXPORT(png_uint_32,png_get_rowbytes) PNGARG((png_structp png_ptr, -png_infop info_ptr)); - -#if defined(PNG_INFO_IMAGE_SUPPORTED) -/* Returns row_pointers, which is an array of pointers to scanlines that was -returned from png_read_png(). */ -extern PNG_EXPORT(png_bytepp,png_get_rows) PNGARG((png_structp png_ptr, -png_infop info_ptr)); -/* Set row_pointers, which is an array of pointers to scanlines for use -by png_write_png(). */ -extern PNG_EXPORT(void,png_set_rows) PNGARG((png_structp png_ptr, - png_infop info_ptr, png_bytepp row_pointers)); -#endif - -/* Returns number of color channels in image. */ -extern PNG_EXPORT(png_byte,png_get_channels) PNGARG((png_structp png_ptr, -png_infop info_ptr)); - -#ifdef PNG_EASY_ACCESS_SUPPORTED -/* Returns image width in pixels. */ -extern PNG_EXPORT(png_uint_32, png_get_image_width) PNGARG((png_structp -png_ptr, png_infop info_ptr)); - -/* Returns image height in pixels. */ -extern PNG_EXPORT(png_uint_32, png_get_image_height) PNGARG((png_structp -png_ptr, png_infop info_ptr)); - -/* Returns image bit_depth. */ -extern PNG_EXPORT(png_byte, png_get_bit_depth) PNGARG((png_structp -png_ptr, png_infop info_ptr)); - -/* Returns image color_type. */ -extern PNG_EXPORT(png_byte, png_get_color_type) PNGARG((png_structp -png_ptr, png_infop info_ptr)); - -/* Returns image filter_type. */ -extern PNG_EXPORT(png_byte, png_get_filter_type) PNGARG((png_structp -png_ptr, png_infop info_ptr)); - -/* Returns image interlace_type. */ -extern PNG_EXPORT(png_byte, png_get_interlace_type) PNGARG((png_structp -png_ptr, png_infop info_ptr)); - -/* Returns image compression_type. */ -extern PNG_EXPORT(png_byte, png_get_compression_type) PNGARG((png_structp -png_ptr, png_infop info_ptr)); - -/* Returns image resolution in pixels per meter, from pHYs chunk data. */ -extern PNG_EXPORT(png_uint_32, png_get_pixels_per_meter) PNGARG((png_structp -png_ptr, png_infop info_ptr)); -extern PNG_EXPORT(png_uint_32, png_get_x_pixels_per_meter) PNGARG((png_structp -png_ptr, png_infop info_ptr)); -extern PNG_EXPORT(png_uint_32, png_get_y_pixels_per_meter) PNGARG((png_structp -png_ptr, png_infop info_ptr)); - -/* Returns pixel aspect ratio, computed from pHYs chunk data. */ -#ifdef PNG_FLOATING_POINT_SUPPORTED -extern PNG_EXPORT(float, png_get_pixel_aspect_ratio) PNGARG((png_structp -png_ptr, png_infop info_ptr)); -#endif - -/* Returns image x, y offset in pixels or microns, from oFFs chunk data. */ -extern PNG_EXPORT(png_int_32, png_get_x_offset_pixels) PNGARG((png_structp -png_ptr, png_infop info_ptr)); -extern PNG_EXPORT(png_int_32, png_get_y_offset_pixels) PNGARG((png_structp -png_ptr, png_infop info_ptr)); -extern PNG_EXPORT(png_int_32, png_get_x_offset_microns) PNGARG((png_structp -png_ptr, png_infop info_ptr)); -extern PNG_EXPORT(png_int_32, png_get_y_offset_microns) PNGARG((png_structp -png_ptr, png_infop info_ptr)); - -#endif /* PNG_EASY_ACCESS_SUPPORTED */ - -/* Returns pointer to signature string read from PNG header */ -extern PNG_EXPORT(png_bytep,png_get_signature) PNGARG((png_structp png_ptr, -png_infop info_ptr)); - -#if defined(PNG_bKGD_SUPPORTED) -extern PNG_EXPORT(png_uint_32,png_get_bKGD) PNGARG((png_structp png_ptr, - png_infop info_ptr, png_color_16p *background)); -#endif - -#if defined(PNG_bKGD_SUPPORTED) -extern PNG_EXPORT(void,png_set_bKGD) PNGARG((png_structp png_ptr, - png_infop info_ptr, png_color_16p background)); -#endif - -#if defined(PNG_cHRM_SUPPORTED) -#ifdef PNG_FLOATING_POINT_SUPPORTED -extern PNG_EXPORT(png_uint_32,png_get_cHRM) PNGARG((png_structp png_ptr, - png_infop info_ptr, double *white_x, double *white_y, double *red_x, - double *red_y, double *green_x, double *green_y, double *blue_x, - double *blue_y)); -#endif -#ifdef PNG_FIXED_POINT_SUPPORTED -extern PNG_EXPORT(png_uint_32,png_get_cHRM_fixed) PNGARG((png_structp png_ptr, - png_infop info_ptr, png_fixed_point *int_white_x, png_fixed_point - *int_white_y, png_fixed_point *int_red_x, png_fixed_point *int_red_y, - png_fixed_point *int_green_x, png_fixed_point *int_green_y, png_fixed_point - *int_blue_x, png_fixed_point *int_blue_y)); -#endif -#endif - -#if defined(PNG_cHRM_SUPPORTED) -#ifdef PNG_FLOATING_POINT_SUPPORTED -extern PNG_EXPORT(void,png_set_cHRM) PNGARG((png_structp png_ptr, - png_infop info_ptr, double white_x, double white_y, double red_x, - double red_y, double green_x, double green_y, double blue_x, double blue_y)); -#endif -#ifdef PNG_FIXED_POINT_SUPPORTED -extern PNG_EXPORT(void,png_set_cHRM_fixed) PNGARG((png_structp png_ptr, - png_infop info_ptr, png_fixed_point int_white_x, png_fixed_point int_white_y, - png_fixed_point int_red_x, png_fixed_point int_red_y, png_fixed_point - int_green_x, png_fixed_point int_green_y, png_fixed_point int_blue_x, - png_fixed_point int_blue_y)); -#endif -#endif - -#if defined(PNG_gAMA_SUPPORTED) -#ifdef PNG_FLOATING_POINT_SUPPORTED -extern PNG_EXPORT(png_uint_32,png_get_gAMA) PNGARG((png_structp png_ptr, - png_infop info_ptr, double *file_gamma)); -#endif -extern PNG_EXPORT(png_uint_32,png_get_gAMA_fixed) PNGARG((png_structp png_ptr, - png_infop info_ptr, png_fixed_point *int_file_gamma)); -#endif - -#if defined(PNG_gAMA_SUPPORTED) -#ifdef PNG_FLOATING_POINT_SUPPORTED -extern PNG_EXPORT(void,png_set_gAMA) PNGARG((png_structp png_ptr, - png_infop info_ptr, double file_gamma)); -#endif -extern PNG_EXPORT(void,png_set_gAMA_fixed) PNGARG((png_structp png_ptr, - png_infop info_ptr, png_fixed_point int_file_gamma)); -#endif - -#if defined(PNG_hIST_SUPPORTED) -extern PNG_EXPORT(png_uint_32,png_get_hIST) PNGARG((png_structp png_ptr, - png_infop info_ptr, png_uint_16p *hist)); -#endif - -#if defined(PNG_hIST_SUPPORTED) -extern PNG_EXPORT(void,png_set_hIST) PNGARG((png_structp png_ptr, - png_infop info_ptr, png_uint_16p hist)); -#endif - -extern PNG_EXPORT(png_uint_32,png_get_IHDR) PNGARG((png_structp png_ptr, - png_infop info_ptr, png_uint_32 *width, png_uint_32 *height, - int *bit_depth, int *color_type, int *interlace_method, - int *compression_method, int *filter_method)); - -extern PNG_EXPORT(void,png_set_IHDR) PNGARG((png_structp png_ptr, - png_infop info_ptr, png_uint_32 width, png_uint_32 height, int bit_depth, - int color_type, int interlace_method, int compression_method, - int filter_method)); - -#if defined(PNG_oFFs_SUPPORTED) -extern PNG_EXPORT(png_uint_32,png_get_oFFs) PNGARG((png_structp png_ptr, - png_infop info_ptr, png_int_32 *offset_x, png_int_32 *offset_y, - int *unit_type)); -#endif - -#if defined(PNG_oFFs_SUPPORTED) -extern PNG_EXPORT(void,png_set_oFFs) PNGARG((png_structp png_ptr, - png_infop info_ptr, png_int_32 offset_x, png_int_32 offset_y, - int unit_type)); -#endif - -#if defined(PNG_pCAL_SUPPORTED) -extern PNG_EXPORT(png_uint_32,png_get_pCAL) PNGARG((png_structp png_ptr, - png_infop info_ptr, png_charp *purpose, png_int_32 *X0, png_int_32 *X1, - int *type, int *nparams, png_charp *units, png_charpp *params)); -#endif - -#if defined(PNG_pCAL_SUPPORTED) -extern PNG_EXPORT(void,png_set_pCAL) PNGARG((png_structp png_ptr, - png_infop info_ptr, png_charp purpose, png_int_32 X0, png_int_32 X1, - int type, int nparams, png_charp units, png_charpp params)); -#endif - -#if defined(PNG_pHYs_SUPPORTED) -extern PNG_EXPORT(png_uint_32,png_get_pHYs) PNGARG((png_structp png_ptr, - png_infop info_ptr, png_uint_32 *res_x, png_uint_32 *res_y, int *unit_type)); -#endif - -#if defined(PNG_pHYs_SUPPORTED) -extern PNG_EXPORT(void,png_set_pHYs) PNGARG((png_structp png_ptr, - png_infop info_ptr, png_uint_32 res_x, png_uint_32 res_y, int unit_type)); -#endif - -extern PNG_EXPORT(png_uint_32,png_get_PLTE) PNGARG((png_structp png_ptr, - png_infop info_ptr, png_colorp *palette, int *num_palette)); - -extern PNG_EXPORT(void,png_set_PLTE) PNGARG((png_structp png_ptr, - png_infop info_ptr, png_colorp palette, int num_palette)); - -#if defined(PNG_sBIT_SUPPORTED) -extern PNG_EXPORT(png_uint_32,png_get_sBIT) PNGARG((png_structp png_ptr, - png_infop info_ptr, png_color_8p *sig_bit)); -#endif - -#if defined(PNG_sBIT_SUPPORTED) -extern PNG_EXPORT(void,png_set_sBIT) PNGARG((png_structp png_ptr, - png_infop info_ptr, png_color_8p sig_bit)); -#endif - -#if defined(PNG_sRGB_SUPPORTED) -extern PNG_EXPORT(png_uint_32,png_get_sRGB) PNGARG((png_structp png_ptr, - png_infop info_ptr, int *intent)); -#endif - -#if defined(PNG_sRGB_SUPPORTED) -extern PNG_EXPORT(void,png_set_sRGB) PNGARG((png_structp png_ptr, - png_infop info_ptr, int intent)); -extern PNG_EXPORT(void,png_set_sRGB_gAMA_and_cHRM) PNGARG((png_structp png_ptr, - png_infop info_ptr, int intent)); -#endif - -#if defined(PNG_iCCP_SUPPORTED) -extern PNG_EXPORT(png_uint_32,png_get_iCCP) PNGARG((png_structp png_ptr, - png_infop info_ptr, png_charpp name, int *compression_type, - png_charpp profile, png_uint_32 *proflen)); - /* Note to maintainer: profile should be png_bytepp */ -#endif - -#if defined(PNG_iCCP_SUPPORTED) -extern PNG_EXPORT(void,png_set_iCCP) PNGARG((png_structp png_ptr, - png_infop info_ptr, png_charp name, int compression_type, - png_charp profile, png_uint_32 proflen)); - /* Note to maintainer: profile should be png_bytep */ -#endif - -#if defined(PNG_sPLT_SUPPORTED) -extern PNG_EXPORT(png_uint_32,png_get_sPLT) PNGARG((png_structp png_ptr, - png_infop info_ptr, png_sPLT_tpp entries)); -#endif - -#if defined(PNG_sPLT_SUPPORTED) -extern PNG_EXPORT(void,png_set_sPLT) PNGARG((png_structp png_ptr, - png_infop info_ptr, png_sPLT_tp entries, int nentries)); -#endif - -#if defined(PNG_TEXT_SUPPORTED) -/* png_get_text also returns the number of text chunks in *num_text */ -extern PNG_EXPORT(png_uint_32,png_get_text) PNGARG((png_structp png_ptr, - png_infop info_ptr, png_textp *text_ptr, int *num_text)); -#endif - -/* - * Note while png_set_text() will accept a structure whose text, - * language, and translated keywords are NULL pointers, the structure - * returned by png_get_text will always contain regular - * zero-terminated C strings. They might be empty strings but - * they will never be NULL pointers. - */ - -#if defined(PNG_TEXT_SUPPORTED) -extern PNG_EXPORT(void,png_set_text) PNGARG((png_structp png_ptr, - png_infop info_ptr, png_textp text_ptr, int num_text)); -#endif - -#if defined(PNG_tIME_SUPPORTED) -extern PNG_EXPORT(png_uint_32,png_get_tIME) PNGARG((png_structp png_ptr, - png_infop info_ptr, png_timep *mod_time)); -#endif - -#if defined(PNG_tIME_SUPPORTED) -extern PNG_EXPORT(void,png_set_tIME) PNGARG((png_structp png_ptr, - png_infop info_ptr, png_timep mod_time)); -#endif - -#if defined(PNG_tRNS_SUPPORTED) -extern PNG_EXPORT(png_uint_32,png_get_tRNS) PNGARG((png_structp png_ptr, - png_infop info_ptr, png_bytep *trans, int *num_trans, - png_color_16p *trans_values)); -#endif - -#if defined(PNG_tRNS_SUPPORTED) -extern PNG_EXPORT(void,png_set_tRNS) PNGARG((png_structp png_ptr, - png_infop info_ptr, png_bytep trans, int num_trans, - png_color_16p trans_values)); -#endif - -#if defined(PNG_tRNS_SUPPORTED) -#endif - -#if defined(PNG_sCAL_SUPPORTED) -#ifdef PNG_FLOATING_POINT_SUPPORTED -extern PNG_EXPORT(png_uint_32,png_get_sCAL) PNGARG((png_structp png_ptr, - png_infop info_ptr, int *unit, double *width, double *height)); -#else -#ifdef PNG_FIXED_POINT_SUPPORTED -extern PNG_EXPORT(png_uint_32,png_get_sCAL_s) PNGARG((png_structp png_ptr, - png_infop info_ptr, int *unit, png_charpp swidth, png_charpp sheight)); -#endif -#endif -#endif /* PNG_sCAL_SUPPORTED */ - -#if defined(PNG_sCAL_SUPPORTED) -#ifdef PNG_FLOATING_POINT_SUPPORTED -extern PNG_EXPORT(void,png_set_sCAL) PNGARG((png_structp png_ptr, - png_infop info_ptr, int unit, double width, double height)); -#else -#ifdef PNG_FIXED_POINT_SUPPORTED -extern PNG_EXPORT(void,png_set_sCAL_s) PNGARG((png_structp png_ptr, - png_infop info_ptr, int unit, png_charp swidth, png_charp sheight)); -#endif -#endif -#endif /* PNG_sCAL_SUPPORTED || PNG_WRITE_sCAL_SUPPORTED */ - -#if defined(PNG_UNKNOWN_CHUNKS_SUPPORTED) -/* provide a list of chunks and how they are to be handled, if the built-in - handling or default unknown chunk handling is not desired. Any chunks not - listed will be handled in the default manner. The IHDR and IEND chunks - must not be listed. - keep = 0: follow default behaviour - = 1: do not keep - = 2: keep only if safe-to-copy - = 3: keep even if unsafe-to-copy -*/ -extern PNG_EXPORT(void, png_set_keep_unknown_chunks) PNGARG((png_structp - png_ptr, int keep, png_bytep chunk_list, int num_chunks)); -extern PNG_EXPORT(void, png_set_unknown_chunks) PNGARG((png_structp png_ptr, - png_infop info_ptr, png_unknown_chunkp unknowns, int num_unknowns)); -extern PNG_EXPORT(void, png_set_unknown_chunk_location) - PNGARG((png_structp png_ptr, png_infop info_ptr, int chunk, int location)); -extern PNG_EXPORT(png_uint_32,png_get_unknown_chunks) PNGARG((png_structp - png_ptr, png_infop info_ptr, png_unknown_chunkpp entries)); -#endif -#ifdef PNG_HANDLE_AS_UNKNOWN_SUPPORTED -PNG_EXPORT(int,png_handle_as_unknown) PNGARG((png_structp png_ptr, png_bytep - chunk_name)); -#endif - -/* Png_free_data() will turn off the "valid" flag for anything it frees. - If you need to turn it off for a chunk that your application has freed, - you can use png_set_invalid(png_ptr, info_ptr, PNG_INFO_CHNK); */ -extern PNG_EXPORT(void, png_set_invalid) PNGARG((png_structp png_ptr, - png_infop info_ptr, int mask)); - -#if defined(PNG_INFO_IMAGE_SUPPORTED) -/* The "params" pointer is currently not used and is for future expansion. */ -extern PNG_EXPORT(void, png_read_png) PNGARG((png_structp png_ptr, - png_infop info_ptr, - int transforms, - png_voidp params)); -extern PNG_EXPORT(void, png_write_png) PNGARG((png_structp png_ptr, - png_infop info_ptr, - int transforms, - png_voidp params)); -#endif - -/* Define PNG_DEBUG at compile time for debugging information. Higher - * numbers for PNG_DEBUG mean more debugging information. This has - * only been added since version 0.95 so it is not implemented throughout - * libpng yet, but more support will be added as needed. - */ -#ifdef PNG_DEBUG -#if (PNG_DEBUG > 0) -#if !defined(PNG_DEBUG_FILE) && defined(_MSC_VER) -#include -#if (PNG_DEBUG > 1) -#define png_debug(l,m) _RPT0(_CRT_WARN,m) -#define png_debug1(l,m,p1) _RPT1(_CRT_WARN,m,p1) -#define png_debug2(l,m,p1,p2) _RPT2(_CRT_WARN,m,p1,p2) -#endif -#else /* PNG_DEBUG_FILE || !_MSC_VER */ -#ifndef PNG_DEBUG_FILE -#define PNG_DEBUG_FILE stderr -#endif /* PNG_DEBUG_FILE */ -#if (PNG_DEBUG > 1) -#define png_debug(l,m) \ -{ \ - int num_tabs=l; \ - fprintf(PNG_DEBUG_FILE,"%s"m,(num_tabs==1 ? "\t" : \ - (num_tabs==2 ? "\t\t":(num_tabs>2 ? "\t\t\t":"")))); \ -} -#define png_debug1(l,m,p1) \ -{ \ - int num_tabs=l; \ - fprintf(PNG_DEBUG_FILE,"%s"m,(num_tabs==1 ? "\t" : \ - (num_tabs==2 ? "\t\t":(num_tabs>2 ? "\t\t\t":""))),p1); \ -} -#define png_debug2(l,m,p1,p2) \ -{ \ - int num_tabs=l; \ - fprintf(PNG_DEBUG_FILE,"%s"m,(num_tabs==1 ? "\t" : \ - (num_tabs==2 ? "\t\t":(num_tabs>2 ? "\t\t\t":""))),p1,p2); \ -} -#endif /* (PNG_DEBUG > 1) */ -#endif /* _MSC_VER */ -#endif /* (PNG_DEBUG > 0) */ -#endif /* PNG_DEBUG */ -#ifndef png_debug -#define png_debug(l, m) -#endif -#ifndef png_debug1 -#define png_debug1(l, m, p1) -#endif -#ifndef png_debug2 -#define png_debug2(l, m, p1, p2) -#endif - -extern PNG_EXPORT(png_charp,png_get_copyright) PNGARG((png_structp png_ptr)); -extern PNG_EXPORT(png_charp,png_get_header_ver) PNGARG((png_structp png_ptr)); -extern PNG_EXPORT(png_charp,png_get_header_version) PNGARG((png_structp png_ptr)); -extern PNG_EXPORT(png_charp,png_get_libpng_ver) PNGARG((png_structp png_ptr)); - -#ifdef PNG_MNG_FEATURES_SUPPORTED -extern PNG_EXPORT(png_uint_32,png_permit_mng_features) PNGARG((png_structp - png_ptr, png_uint_32 mng_features_permitted)); -#endif - -/* For use in png_set_keep_unknown, added to version 1.2.6 */ -#define PNG_HANDLE_CHUNK_AS_DEFAULT 0 -#define PNG_HANDLE_CHUNK_NEVER 1 -#define PNG_HANDLE_CHUNK_IF_SAFE 2 -#define PNG_HANDLE_CHUNK_ALWAYS 3 - -/* Added to version 1.2.0 */ -#if defined(PNG_ASSEMBLER_CODE_SUPPORTED) -#if defined(PNG_MMX_CODE_SUPPORTED) -#define PNG_ASM_FLAG_MMX_SUPPORT_COMPILED 0x01 /* not user-settable */ -#define PNG_ASM_FLAG_MMX_SUPPORT_IN_CPU 0x02 /* not user-settable */ -#define PNG_ASM_FLAG_MMX_READ_COMBINE_ROW 0x04 -#define PNG_ASM_FLAG_MMX_READ_INTERLACE 0x08 -#define PNG_ASM_FLAG_MMX_READ_FILTER_SUB 0x10 -#define PNG_ASM_FLAG_MMX_READ_FILTER_UP 0x20 -#define PNG_ASM_FLAG_MMX_READ_FILTER_AVG 0x40 -#define PNG_ASM_FLAG_MMX_READ_FILTER_PAETH 0x80 -#define PNG_ASM_FLAGS_INITIALIZED 0x80000000 /* not user-settable */ - -#define PNG_MMX_READ_FLAGS ( PNG_ASM_FLAG_MMX_READ_COMBINE_ROW \ - | PNG_ASM_FLAG_MMX_READ_INTERLACE \ - | PNG_ASM_FLAG_MMX_READ_FILTER_SUB \ - | PNG_ASM_FLAG_MMX_READ_FILTER_UP \ - | PNG_ASM_FLAG_MMX_READ_FILTER_AVG \ - | PNG_ASM_FLAG_MMX_READ_FILTER_PAETH ) -#define PNG_MMX_WRITE_FLAGS ( 0 ) - -#define PNG_MMX_FLAGS ( PNG_ASM_FLAG_MMX_SUPPORT_COMPILED \ - | PNG_ASM_FLAG_MMX_SUPPORT_IN_CPU \ - | PNG_MMX_READ_FLAGS \ - | PNG_MMX_WRITE_FLAGS ) - -#define PNG_SELECT_READ 1 -#define PNG_SELECT_WRITE 2 -#endif /* PNG_MMX_CODE_SUPPORTED */ - -#if !defined(PNG_1_0_X) -/* pngget.c */ -extern PNG_EXPORT(png_uint_32,png_get_mmx_flagmask) - PNGARG((int flag_select, int *compilerID)); - -/* pngget.c */ -extern PNG_EXPORT(png_uint_32,png_get_asm_flagmask) - PNGARG((int flag_select)); - -/* pngget.c */ -extern PNG_EXPORT(png_uint_32,png_get_asm_flags) - PNGARG((png_structp png_ptr)); - -/* pngget.c */ -extern PNG_EXPORT(png_byte,png_get_mmx_bitdepth_threshold) - PNGARG((png_structp png_ptr)); - -/* pngget.c */ -extern PNG_EXPORT(png_uint_32,png_get_mmx_rowbytes_threshold) - PNGARG((png_structp png_ptr)); - -/* pngset.c */ -extern PNG_EXPORT(void,png_set_asm_flags) - PNGARG((png_structp png_ptr, png_uint_32 asm_flags)); - -/* pngset.c */ -extern PNG_EXPORT(void,png_set_mmx_thresholds) - PNGARG((png_structp png_ptr, png_byte mmx_bitdepth_threshold, - png_uint_32 mmx_rowbytes_threshold)); - -#endif /* PNG_1_0_X */ - -#if !defined(PNG_1_0_X) -/* png.c, pnggccrd.c, or pngvcrd.c */ -extern PNG_EXPORT(int,png_mmx_support) PNGARG((void)); -#endif /* PNG_ASSEMBLER_CODE_SUPPORTED */ - -/* Strip the prepended error numbers ("#nnn ") from error and warning - * messages before passing them to the error or warning handler. */ -#ifdef PNG_ERROR_NUMBERS_SUPPORTED -extern PNG_EXPORT(void,png_set_strip_error_numbers) PNGARG((png_structp - png_ptr, png_uint_32 strip_mode)); -#endif - -#endif /* PNG_1_0_X */ - -/* Added at libpng-1.2.6 */ -#ifdef PNG_SET_USER_LIMITS_SUPPORTED -extern PNG_EXPORT(void,png_set_user_limits) PNGARG((png_structp - png_ptr, png_uint_32 user_width_max, png_uint_32 user_height_max)); -extern PNG_EXPORT(png_uint_32,png_get_user_width_max) PNGARG((png_structp - png_ptr)); -extern PNG_EXPORT(png_uint_32,png_get_user_height_max) PNGARG((png_structp - png_ptr)); -#endif - -/* Maintainer: Put new public prototypes here ^, in libpng.3, and project defs */ - -#ifdef PNG_READ_COMPOSITE_NODIV_SUPPORTED -/* With these routines we avoid an integer divide, which will be slower on - * most machines. However, it does take more operations than the corresponding - * divide method, so it may be slower on a few RISC systems. There are two - * shifts (by 8 or 16 bits) and an addition, versus a single integer divide. - * - * Note that the rounding factors are NOT supposed to be the same! 128 and - * 32768 are correct for the NODIV code; 127 and 32767 are correct for the - * standard method. - * - * [Optimized code by Greg Roelofs and Mark Adler...blame us for bugs. :-) ] - */ - - /* fg and bg should be in `gamma 1.0' space; alpha is the opacity */ - -# define png_composite(composite, fg, alpha, bg) \ - { png_uint_16 temp = (png_uint_16)((png_uint_16)(fg) * (png_uint_16)(alpha) \ - + (png_uint_16)(bg)*(png_uint_16)(255 - \ - (png_uint_16)(alpha)) + (png_uint_16)128); \ - (composite) = (png_byte)((temp + (temp >> 8)) >> 8); } - -# define png_composite_16(composite, fg, alpha, bg) \ - { png_uint_32 temp = (png_uint_32)((png_uint_32)(fg) * (png_uint_32)(alpha) \ - + (png_uint_32)(bg)*(png_uint_32)(65535L - \ - (png_uint_32)(alpha)) + (png_uint_32)32768L); \ - (composite) = (png_uint_16)((temp + (temp >> 16)) >> 16); } - -#else /* standard method using integer division */ - -# define png_composite(composite, fg, alpha, bg) \ - (composite) = (png_byte)(((png_uint_16)(fg) * (png_uint_16)(alpha) + \ - (png_uint_16)(bg) * (png_uint_16)(255 - (png_uint_16)(alpha)) + \ - (png_uint_16)127) / 255) - -# define png_composite_16(composite, fg, alpha, bg) \ - (composite) = (png_uint_16)(((png_uint_32)(fg) * (png_uint_32)(alpha) + \ - (png_uint_32)(bg)*(png_uint_32)(65535L - (png_uint_32)(alpha)) + \ - (png_uint_32)32767) / (png_uint_32)65535L) - -#endif /* PNG_READ_COMPOSITE_NODIV_SUPPORTED */ - -/* Inline macros to do direct reads of bytes from the input buffer. These - * require that you are using an architecture that uses PNG byte ordering - * (MSB first) and supports unaligned data storage. I think that PowerPC - * in big-endian mode and 680x0 are the only ones that will support this. - * The x86 line of processors definitely do not. The png_get_int_32() - * routine also assumes we are using two's complement format for negative - * values, which is almost certainly true. - */ -#if defined(PNG_READ_BIG_ENDIAN_SUPPORTED) -# define png_get_uint_32(buf) ( *((png_uint_32p) (buf))) -# define png_get_uint_16(buf) ( *((png_uint_16p) (buf))) -# define png_get_int_32(buf) ( *((png_int_32p) (buf))) -#else -extern PNG_EXPORT(png_uint_32,png_get_uint_32) PNGARG((png_bytep buf)); -extern PNG_EXPORT(png_uint_16,png_get_uint_16) PNGARG((png_bytep buf)); -extern PNG_EXPORT(png_int_32,png_get_int_32) PNGARG((png_bytep buf)); -#endif /* !PNG_READ_BIG_ENDIAN_SUPPORTED */ -extern PNG_EXPORT(png_uint_32,png_get_uint_31) - PNGARG((png_structp png_ptr, png_bytep buf)); -/* No png_get_int_16 -- may be added if there's a real need for it. */ - -/* Place a 32-bit number into a buffer in PNG byte order (big-endian). - */ -extern PNG_EXPORT(void,png_save_uint_32) - PNGARG((png_bytep buf, png_uint_32 i)); -extern PNG_EXPORT(void,png_save_int_32) - PNGARG((png_bytep buf, png_int_32 i)); - -/* Place a 16-bit number into a buffer in PNG byte order. - * The parameter is declared unsigned int, not png_uint_16, - * just to avoid potential problems on pre-ANSI C compilers. - */ -extern PNG_EXPORT(void,png_save_uint_16) - PNGARG((png_bytep buf, unsigned int i)); -/* No png_save_int_16 -- may be added if there's a real need for it. */ - -/* ************************************************************************* */ - -/* These next functions are used internally in the code. They generally - * shouldn't be used unless you are writing code to add or replace some - * functionality in libpng. More information about most functions can - * be found in the files where the functions are located. - */ - - -/* Various modes of operation, that are visible to applications because - * they are used for unknown chunk location. - */ -#define PNG_HAVE_IHDR 0x01 -#define PNG_HAVE_PLTE 0x02 -#define PNG_HAVE_IDAT 0x04 -#define PNG_AFTER_IDAT 0x08 /* Have complete zlib datastream */ -#define PNG_HAVE_IEND 0x10 - -#if defined(PNG_INTERNAL) - -/* More modes of operation. Note that after an init, mode is set to - * zero automatically when the structure is created. - */ -#define PNG_HAVE_gAMA 0x20 -#define PNG_HAVE_cHRM 0x40 -#define PNG_HAVE_sRGB 0x80 -#define PNG_HAVE_CHUNK_HEADER 0x100 -#define PNG_WROTE_tIME 0x200 -#define PNG_WROTE_INFO_BEFORE_PLTE 0x400 -#define PNG_BACKGROUND_IS_GRAY 0x800 -#define PNG_HAVE_PNG_SIGNATURE 0x1000 -#define PNG_HAVE_CHUNK_AFTER_IDAT 0x2000 /* Have another chunk after IDAT */ - -/* flags for the transformations the PNG library does on the image data */ -#define PNG_BGR 0x0001 -#define PNG_INTERLACE 0x0002 -#define PNG_PACK 0x0004 -#define PNG_SHIFT 0x0008 -#define PNG_SWAP_BYTES 0x0010 -#define PNG_INVERT_MONO 0x0020 -#define PNG_DITHER 0x0040 -#define PNG_BACKGROUND 0x0080 -#define PNG_BACKGROUND_EXPAND 0x0100 - /* 0x0200 unused */ -#define PNG_16_TO_8 0x0400 -#define PNG_RGBA 0x0800 -#define PNG_EXPAND 0x1000 -#define PNG_GAMMA 0x2000 -#define PNG_GRAY_TO_RGB 0x4000 -#define PNG_FILLER 0x8000L -#define PNG_PACKSWAP 0x10000L -#define PNG_SWAP_ALPHA 0x20000L -#define PNG_STRIP_ALPHA 0x40000L -#define PNG_INVERT_ALPHA 0x80000L -#define PNG_USER_TRANSFORM 0x100000L -#define PNG_RGB_TO_GRAY_ERR 0x200000L -#define PNG_RGB_TO_GRAY_WARN 0x400000L -#define PNG_RGB_TO_GRAY 0x600000L /* two bits, RGB_TO_GRAY_ERR|WARN */ - /* 0x800000L Unused */ -#define PNG_ADD_ALPHA 0x1000000L /* Added to libpng-1.2.7 */ -#define PNG_EXPAND_tRNS 0x2000000L /* Added to libpng-1.2.9 */ - /* 0x4000000L unused */ - /* 0x8000000L unused */ - /* 0x10000000L unused */ - /* 0x20000000L unused */ - /* 0x40000000L unused */ - -/* flags for png_create_struct */ -#define PNG_STRUCT_PNG 0x0001 -#define PNG_STRUCT_INFO 0x0002 - -/* Scaling factor for filter heuristic weighting calculations */ -#define PNG_WEIGHT_SHIFT 8 -#define PNG_WEIGHT_FACTOR (1<<(PNG_WEIGHT_SHIFT)) -#define PNG_COST_SHIFT 3 -#define PNG_COST_FACTOR (1<<(PNG_COST_SHIFT)) - -/* flags for the png_ptr->flags rather than declaring a byte for each one */ -#define PNG_FLAG_ZLIB_CUSTOM_STRATEGY 0x0001 -#define PNG_FLAG_ZLIB_CUSTOM_LEVEL 0x0002 -#define PNG_FLAG_ZLIB_CUSTOM_MEM_LEVEL 0x0004 -#define PNG_FLAG_ZLIB_CUSTOM_WINDOW_BITS 0x0008 -#define PNG_FLAG_ZLIB_CUSTOM_METHOD 0x0010 -#define PNG_FLAG_ZLIB_FINISHED 0x0020 -#define PNG_FLAG_ROW_INIT 0x0040 -#define PNG_FLAG_FILLER_AFTER 0x0080 -#define PNG_FLAG_CRC_ANCILLARY_USE 0x0100 -#define PNG_FLAG_CRC_ANCILLARY_NOWARN 0x0200 -#define PNG_FLAG_CRC_CRITICAL_USE 0x0400 -#define PNG_FLAG_CRC_CRITICAL_IGNORE 0x0800 -#define PNG_FLAG_FREE_PLTE 0x1000 -#define PNG_FLAG_FREE_TRNS 0x2000 -#define PNG_FLAG_FREE_HIST 0x4000 -#define PNG_FLAG_KEEP_UNKNOWN_CHUNKS 0x8000L -#define PNG_FLAG_KEEP_UNSAFE_CHUNKS 0x10000L -#define PNG_FLAG_LIBRARY_MISMATCH 0x20000L -#define PNG_FLAG_STRIP_ERROR_NUMBERS 0x40000L -#define PNG_FLAG_STRIP_ERROR_TEXT 0x80000L -#define PNG_FLAG_MALLOC_NULL_MEM_OK 0x100000L -#define PNG_FLAG_ADD_ALPHA 0x200000L /* Added to libpng-1.2.8 */ -#define PNG_FLAG_STRIP_ALPHA 0x400000L /* Added to libpng-1.2.8 */ - /* 0x800000L unused */ - /* 0x1000000L unused */ - /* 0x2000000L unused */ - /* 0x4000000L unused */ - /* 0x8000000L unused */ - /* 0x10000000L unused */ - /* 0x20000000L unused */ - /* 0x40000000L unused */ - -#define PNG_FLAG_CRC_ANCILLARY_MASK (PNG_FLAG_CRC_ANCILLARY_USE | \ - PNG_FLAG_CRC_ANCILLARY_NOWARN) - -#define PNG_FLAG_CRC_CRITICAL_MASK (PNG_FLAG_CRC_CRITICAL_USE | \ - PNG_FLAG_CRC_CRITICAL_IGNORE) - -#define PNG_FLAG_CRC_MASK (PNG_FLAG_CRC_ANCILLARY_MASK | \ - PNG_FLAG_CRC_CRITICAL_MASK) - -/* save typing and make code easier to understand */ - -#define PNG_COLOR_DIST(c1, c2) (abs((int)((c1).red) - (int)((c2).red)) + \ - abs((int)((c1).green) - (int)((c2).green)) + \ - abs((int)((c1).blue) - (int)((c2).blue))) - -/* Added to libpng-1.2.6 JB */ -#define PNG_ROWBYTES(pixel_bits, width) \ - ((pixel_bits) >= 8 ? \ - ((width) * (((png_uint_32)(pixel_bits)) >> 3)) : \ - (( ((width) * ((png_uint_32)(pixel_bits))) + 7) >> 3) ) - -/* PNG_OUT_OF_RANGE returns true if value is outside the range - ideal-delta..ideal+delta. Each argument is evaluated twice. - "ideal" and "delta" should be constants, normally simple - integers, "value" a variable. Added to libpng-1.2.6 JB */ -#define PNG_OUT_OF_RANGE(value, ideal, delta) \ - ( (value) < (ideal)-(delta) || (value) > (ideal)+(delta) ) - -/* variables declared in png.c - only it needs to define PNG_NO_EXTERN */ -#if !defined(PNG_NO_EXTERN) || defined(PNG_ALWAYS_EXTERN) -/* place to hold the signature string for a PNG file. */ -#ifdef PNG_USE_GLOBAL_ARRAYS - PNG_EXPORT_VAR (PNG_CONST png_byte FARDATA) png_sig[8]; -#else -#endif -#endif /* PNG_NO_EXTERN */ - -/* Constant strings for known chunk types. If you need to add a chunk, - * define the name here, and add an invocation of the macro in png.c and - * wherever it's needed. - */ -#define PNG_IHDR png_byte png_IHDR[5] = { 73, 72, 68, 82, '\0'} -#define PNG_IDAT png_byte png_IDAT[5] = { 73, 68, 65, 84, '\0'} -#define PNG_IEND png_byte png_IEND[5] = { 73, 69, 78, 68, '\0'} -#define PNG_PLTE png_byte png_PLTE[5] = { 80, 76, 84, 69, '\0'} -#define PNG_bKGD png_byte png_bKGD[5] = { 98, 75, 71, 68, '\0'} -#define PNG_cHRM png_byte png_cHRM[5] = { 99, 72, 82, 77, '\0'} -#define PNG_gAMA png_byte png_gAMA[5] = {103, 65, 77, 65, '\0'} -#define PNG_hIST png_byte png_hIST[5] = {104, 73, 83, 84, '\0'} -#define PNG_iCCP png_byte png_iCCP[5] = {105, 67, 67, 80, '\0'} -#define PNG_iTXt png_byte png_iTXt[5] = {105, 84, 88, 116, '\0'} -#define PNG_oFFs png_byte png_oFFs[5] = {111, 70, 70, 115, '\0'} -#define PNG_pCAL png_byte png_pCAL[5] = {112, 67, 65, 76, '\0'} -#define PNG_sCAL png_byte png_sCAL[5] = {115, 67, 65, 76, '\0'} -#define PNG_pHYs png_byte png_pHYs[5] = {112, 72, 89, 115, '\0'} -#define PNG_sBIT png_byte png_sBIT[5] = {115, 66, 73, 84, '\0'} -#define PNG_sPLT png_byte png_sPLT[5] = {115, 80, 76, 84, '\0'} -#define PNG_sRGB png_byte png_sRGB[5] = {115, 82, 71, 66, '\0'} -#define PNG_tEXt png_byte png_tEXt[5] = {116, 69, 88, 116, '\0'} -#define PNG_tIME png_byte png_tIME[5] = {116, 73, 77, 69, '\0'} -#define PNG_tRNS png_byte png_tRNS[5] = {116, 82, 78, 83, '\0'} -#define PNG_zTXt png_byte png_zTXt[5] = {122, 84, 88, 116, '\0'} - -#ifdef PNG_USE_GLOBAL_ARRAYS -PNG_EXPORT_VAR (png_byte FARDATA) png_IHDR[5]; -PNG_EXPORT_VAR (png_byte FARDATA) png_IDAT[5]; -PNG_EXPORT_VAR (png_byte FARDATA) png_IEND[5]; -PNG_EXPORT_VAR (png_byte FARDATA) png_PLTE[5]; -PNG_EXPORT_VAR (png_byte FARDATA) png_bKGD[5]; -PNG_EXPORT_VAR (png_byte FARDATA) png_cHRM[5]; -PNG_EXPORT_VAR (png_byte FARDATA) png_gAMA[5]; -PNG_EXPORT_VAR (png_byte FARDATA) png_hIST[5]; -PNG_EXPORT_VAR (png_byte FARDATA) png_iCCP[5]; -PNG_EXPORT_VAR (png_byte FARDATA) png_iTXt[5]; -PNG_EXPORT_VAR (png_byte FARDATA) png_oFFs[5]; -PNG_EXPORT_VAR (png_byte FARDATA) png_pCAL[5]; -PNG_EXPORT_VAR (png_byte FARDATA) png_sCAL[5]; -PNG_EXPORT_VAR (png_byte FARDATA) png_pHYs[5]; -PNG_EXPORT_VAR (png_byte FARDATA) png_sBIT[5]; -PNG_EXPORT_VAR (png_byte FARDATA) png_sPLT[5]; -PNG_EXPORT_VAR (png_byte FARDATA) png_sRGB[5]; -PNG_EXPORT_VAR (png_byte FARDATA) png_tEXt[5]; -PNG_EXPORT_VAR (png_byte FARDATA) png_tIME[5]; -PNG_EXPORT_VAR (png_byte FARDATA) png_tRNS[5]; -PNG_EXPORT_VAR (png_byte FARDATA) png_zTXt[5]; -#endif /* PNG_USE_GLOBAL_ARRAYS */ - -#if defined(PNG_1_0_X) || defined (PNG_1_2_X) -/* Initialize png_ptr struct for reading, and allocate any other memory. - * (old interface - DEPRECATED - use png_create_read_struct instead). - */ -extern PNG_EXPORT(void,png_read_init) PNGARG((png_structp png_ptr)); -#undef png_read_init -#define png_read_init(png_ptr) png_read_init_3(&png_ptr, \ - PNG_LIBPNG_VER_STRING, png_sizeof(png_struct)); -#endif - -extern PNG_EXPORT(void,png_read_init_3) PNGARG((png_structpp ptr_ptr, - png_const_charp user_png_ver, png_size_t png_struct_size)); -#if defined(PNG_1_0_X) || defined (PNG_1_2_X) -extern PNG_EXPORT(void,png_read_init_2) PNGARG((png_structp png_ptr, - png_const_charp user_png_ver, png_size_t png_struct_size, png_size_t - png_info_size)); -#endif - -#if defined(PNG_1_0_X) || defined (PNG_1_2_X) -/* Initialize png_ptr struct for writing, and allocate any other memory. - * (old interface - DEPRECATED - use png_create_write_struct instead). - */ -extern PNG_EXPORT(void,png_write_init) PNGARG((png_structp png_ptr)); -#undef png_write_init -#define png_write_init(png_ptr) png_write_init_3(&png_ptr, \ - PNG_LIBPNG_VER_STRING, png_sizeof(png_struct)); -#endif - -extern PNG_EXPORT(void,png_write_init_3) PNGARG((png_structpp ptr_ptr, - png_const_charp user_png_ver, png_size_t png_struct_size)); -extern PNG_EXPORT(void,png_write_init_2) PNGARG((png_structp png_ptr, - png_const_charp user_png_ver, png_size_t png_struct_size, png_size_t - png_info_size)); - -/* Allocate memory for an internal libpng struct */ -PNG_EXTERN png_voidp png_create_struct PNGARG((int type)); - -/* Free memory from internal libpng struct */ -PNG_EXTERN void png_destroy_struct PNGARG((png_voidp struct_ptr)); - -PNG_EXTERN png_voidp png_create_struct_2 PNGARG((int type, png_malloc_ptr - malloc_fn, png_voidp mem_ptr)); -PNG_EXTERN void png_destroy_struct_2 PNGARG((png_voidp struct_ptr, - png_free_ptr free_fn, png_voidp mem_ptr)); - -/* Free any memory that info_ptr points to and reset struct. */ -PNG_EXTERN void png_info_destroy PNGARG((png_structp png_ptr, - png_infop info_ptr)); - -#ifndef PNG_1_0_X -/* Function to allocate memory for zlib. */ -PNG_EXTERN voidpf png_zalloc PNGARG((voidpf png_ptr, uInt items, uInt size)); - -/* Function to free memory for zlib */ -PNG_EXTERN void png_zfree PNGARG((voidpf png_ptr, voidpf ptr)); - -#ifdef PNG_SIZE_T -/* Function to convert a sizeof an item to png_sizeof item */ - PNG_EXTERN png_size_t PNGAPI png_convert_size PNGARG((size_t size)); -#endif - -/* Next four functions are used internally as callbacks. PNGAPI is required - * but not PNG_EXPORT. PNGAPI added at libpng version 1.2.3. */ - -PNG_EXTERN void PNGAPI png_default_read_data PNGARG((png_structp png_ptr, - png_bytep data, png_size_t length)); - -#ifdef PNG_PROGRESSIVE_READ_SUPPORTED -PNG_EXTERN void PNGAPI png_push_fill_buffer PNGARG((png_structp png_ptr, - png_bytep buffer, png_size_t length)); -#endif - -PNG_EXTERN void PNGAPI png_default_write_data PNGARG((png_structp png_ptr, - png_bytep data, png_size_t length)); - -#if defined(PNG_WRITE_FLUSH_SUPPORTED) -#if !defined(PNG_NO_STDIO) -PNG_EXTERN void PNGAPI png_default_flush PNGARG((png_structp png_ptr)); -#endif -#endif -#else /* PNG_1_0_X */ -#ifdef PNG_PROGRESSIVE_READ_SUPPORTED -PNG_EXTERN void png_push_fill_buffer PNGARG((png_structp png_ptr, - png_bytep buffer, png_size_t length)); -#endif -#endif /* PNG_1_0_X */ - -/* Reset the CRC variable */ -PNG_EXTERN void png_reset_crc PNGARG((png_structp png_ptr)); - -/* Write the "data" buffer to whatever output you are using. */ -PNG_EXTERN void png_write_data PNGARG((png_structp png_ptr, png_bytep data, - png_size_t length)); - -/* Read data from whatever input you are using into the "data" buffer */ -PNG_EXTERN void png_read_data PNGARG((png_structp png_ptr, png_bytep data, - png_size_t length)); - -/* Read bytes into buf, and update png_ptr->crc */ -PNG_EXTERN void png_crc_read PNGARG((png_structp png_ptr, png_bytep buf, - png_size_t length)); - -/* Decompress data in a chunk that uses compression */ -#if defined(PNG_zTXt_SUPPORTED) || defined(PNG_iTXt_SUPPORTED) || \ - defined(PNG_iCCP_SUPPORTED) || defined(PNG_sPLT_SUPPORTED) -PNG_EXTERN png_charp png_decompress_chunk PNGARG((png_structp png_ptr, - int comp_type, png_charp chunkdata, png_size_t chunklength, - png_size_t prefix_length, png_size_t *data_length)); -#endif - -/* Read "skip" bytes, read the file crc, and (optionally) verify png_ptr->crc */ -PNG_EXTERN int png_crc_finish PNGARG((png_structp png_ptr, png_uint_32 skip)); - -/* Read the CRC from the file and compare it to the libpng calculated CRC */ -PNG_EXTERN int png_crc_error PNGARG((png_structp png_ptr)); - -/* Calculate the CRC over a section of data. Note that we are only - * passing a maximum of 64K on systems that have this as a memory limit, - * since this is the maximum buffer size we can specify. - */ -PNG_EXTERN void png_calculate_crc PNGARG((png_structp png_ptr, png_bytep ptr, - png_size_t length)); - -#if defined(PNG_WRITE_FLUSH_SUPPORTED) -PNG_EXTERN void png_flush PNGARG((png_structp png_ptr)); -#endif - -/* simple function to write the signature */ -PNG_EXTERN void png_write_sig PNGARG((png_structp png_ptr)); - -/* write various chunks */ - -/* Write the IHDR chunk, and update the png_struct with the necessary - * information. - */ -PNG_EXTERN void png_write_IHDR PNGARG((png_structp png_ptr, png_uint_32 width, - png_uint_32 height, - int bit_depth, int color_type, int compression_method, int filter_method, - int interlace_method)); - -PNG_EXTERN void png_write_PLTE PNGARG((png_structp png_ptr, png_colorp palette, - png_uint_32 num_pal)); - -PNG_EXTERN void png_write_IDAT PNGARG((png_structp png_ptr, png_bytep data, - png_size_t length)); - -PNG_EXTERN void png_write_IEND PNGARG((png_structp png_ptr)); - -#if defined(PNG_WRITE_gAMA_SUPPORTED) -#ifdef PNG_FLOATING_POINT_SUPPORTED -PNG_EXTERN void png_write_gAMA PNGARG((png_structp png_ptr, double file_gamma)); -#endif -#ifdef PNG_FIXED_POINT_SUPPORTED -PNG_EXTERN void png_write_gAMA_fixed PNGARG((png_structp png_ptr, png_fixed_point - file_gamma)); -#endif -#endif - -#if defined(PNG_WRITE_sBIT_SUPPORTED) -PNG_EXTERN void png_write_sBIT PNGARG((png_structp png_ptr, png_color_8p sbit, - int color_type)); -#endif - -#if defined(PNG_WRITE_cHRM_SUPPORTED) -#ifdef PNG_FLOATING_POINT_SUPPORTED -PNG_EXTERN void png_write_cHRM PNGARG((png_structp png_ptr, - double white_x, double white_y, - double red_x, double red_y, double green_x, double green_y, - double blue_x, double blue_y)); -#endif -#ifdef PNG_FIXED_POINT_SUPPORTED -PNG_EXTERN void png_write_cHRM_fixed PNGARG((png_structp png_ptr, - png_fixed_point int_white_x, png_fixed_point int_white_y, - png_fixed_point int_red_x, png_fixed_point int_red_y, png_fixed_point - int_green_x, png_fixed_point int_green_y, png_fixed_point int_blue_x, - png_fixed_point int_blue_y)); -#endif -#endif - -#if defined(PNG_WRITE_sRGB_SUPPORTED) -PNG_EXTERN void png_write_sRGB PNGARG((png_structp png_ptr, - int intent)); -#endif - -#if defined(PNG_WRITE_iCCP_SUPPORTED) -PNG_EXTERN void png_write_iCCP PNGARG((png_structp png_ptr, - png_charp name, int compression_type, - png_charp profile, int proflen)); - /* Note to maintainer: profile should be png_bytep */ -#endif - -#if defined(PNG_WRITE_sPLT_SUPPORTED) -PNG_EXTERN void png_write_sPLT PNGARG((png_structp png_ptr, - png_sPLT_tp palette)); -#endif - -#if defined(PNG_WRITE_tRNS_SUPPORTED) -PNG_EXTERN void png_write_tRNS PNGARG((png_structp png_ptr, png_bytep trans, - png_color_16p values, int number, int color_type)); -#endif - -#if defined(PNG_WRITE_bKGD_SUPPORTED) -PNG_EXTERN void png_write_bKGD PNGARG((png_structp png_ptr, - png_color_16p values, int color_type)); -#endif - -#if defined(PNG_WRITE_hIST_SUPPORTED) -PNG_EXTERN void png_write_hIST PNGARG((png_structp png_ptr, png_uint_16p hist, - int num_hist)); -#endif - -#if defined(PNG_WRITE_TEXT_SUPPORTED) || defined(PNG_WRITE_pCAL_SUPPORTED) || \ - defined(PNG_WRITE_iCCP_SUPPORTED) || defined(PNG_WRITE_sPLT_SUPPORTED) -PNG_EXTERN png_size_t png_check_keyword PNGARG((png_structp png_ptr, - png_charp key, png_charpp new_key)); -#endif - -#if defined(PNG_WRITE_tEXt_SUPPORTED) -PNG_EXTERN void png_write_tEXt PNGARG((png_structp png_ptr, png_charp key, - png_charp text, png_size_t text_len)); -#endif - -#if defined(PNG_WRITE_zTXt_SUPPORTED) -PNG_EXTERN void png_write_zTXt PNGARG((png_structp png_ptr, png_charp key, - png_charp text, png_size_t text_len, int compression)); -#endif - -#if defined(PNG_WRITE_iTXt_SUPPORTED) -PNG_EXTERN void png_write_iTXt PNGARG((png_structp png_ptr, - int compression, png_charp key, png_charp lang, png_charp lang_key, - png_charp text)); -#endif - -#if defined(PNG_TEXT_SUPPORTED) /* Added at version 1.0.14 and 1.2.4 */ -PNG_EXTERN int png_set_text_2 PNGARG((png_structp png_ptr, - png_infop info_ptr, png_textp text_ptr, int num_text)); -#endif - -#if defined(PNG_WRITE_oFFs_SUPPORTED) -PNG_EXTERN void png_write_oFFs PNGARG((png_structp png_ptr, - png_int_32 x_offset, png_int_32 y_offset, int unit_type)); -#endif - -#if defined(PNG_WRITE_pCAL_SUPPORTED) -PNG_EXTERN void png_write_pCAL PNGARG((png_structp png_ptr, png_charp purpose, - png_int_32 X0, png_int_32 X1, int type, int nparams, - png_charp units, png_charpp params)); -#endif - -#if defined(PNG_WRITE_pHYs_SUPPORTED) -PNG_EXTERN void png_write_pHYs PNGARG((png_structp png_ptr, - png_uint_32 x_pixels_per_unit, png_uint_32 y_pixels_per_unit, - int unit_type)); -#endif - -#if defined(PNG_WRITE_tIME_SUPPORTED) -PNG_EXTERN void png_write_tIME PNGARG((png_structp png_ptr, - png_timep mod_time)); -#endif - -#if defined(PNG_WRITE_sCAL_SUPPORTED) -#if defined(PNG_FLOATING_POINT_SUPPORTED) && !defined(PNG_NO_STDIO) -PNG_EXTERN void png_write_sCAL PNGARG((png_structp png_ptr, - int unit, double width, double height)); -#else -#ifdef PNG_FIXED_POINT_SUPPORTED -PNG_EXTERN void png_write_sCAL_s PNGARG((png_structp png_ptr, - int unit, png_charp width, png_charp height)); -#endif -#endif -#endif - -/* Called when finished processing a row of data */ -PNG_EXTERN void png_write_finish_row PNGARG((png_structp png_ptr)); - -/* Internal use only. Called before first row of data */ -PNG_EXTERN void png_write_start_row PNGARG((png_structp png_ptr)); - -#if defined(PNG_READ_GAMMA_SUPPORTED) -PNG_EXTERN void png_build_gamma_table PNGARG((png_structp png_ptr)); -#endif - -/* combine a row of data, dealing with alpha, etc. if requested */ -PNG_EXTERN void png_combine_row PNGARG((png_structp png_ptr, png_bytep row, - int mask)); - -#if defined(PNG_READ_INTERLACING_SUPPORTED) -/* expand an interlaced row */ -/* OLD pre-1.0.9 interface: -PNG_EXTERN void png_do_read_interlace PNGARG((png_row_infop row_info, - png_bytep row, int pass, png_uint_32 transformations)); - */ -PNG_EXTERN void png_do_read_interlace PNGARG((png_structp png_ptr)); -#endif - -/* GRR TO DO (2.0 or whenever): simplify other internal calling interfaces */ - -#if defined(PNG_WRITE_INTERLACING_SUPPORTED) -/* grab pixels out of a row for an interlaced pass */ -PNG_EXTERN void png_do_write_interlace PNGARG((png_row_infop row_info, - png_bytep row, int pass)); -#endif - -/* unfilter a row */ -PNG_EXTERN void png_read_filter_row PNGARG((png_structp png_ptr, - png_row_infop row_info, png_bytep row, png_bytep prev_row, int filter)); - -/* Choose the best filter to use and filter the row data */ -PNG_EXTERN void png_write_find_filter PNGARG((png_structp png_ptr, - png_row_infop row_info)); - -/* Write out the filtered row. */ -PNG_EXTERN void png_write_filtered_row PNGARG((png_structp png_ptr, - png_bytep filtered_row)); -/* finish a row while reading, dealing with interlacing passes, etc. */ -PNG_EXTERN void png_read_finish_row PNGARG((png_structp png_ptr)); - -/* initialize the row buffers, etc. */ -PNG_EXTERN void png_read_start_row PNGARG((png_structp png_ptr)); -/* optional call to update the users info structure */ -PNG_EXTERN void png_read_transform_info PNGARG((png_structp png_ptr, - png_infop info_ptr)); - -/* these are the functions that do the transformations */ -#if defined(PNG_READ_FILLER_SUPPORTED) -PNG_EXTERN void png_do_read_filler PNGARG((png_row_infop row_info, - png_bytep row, png_uint_32 filler, png_uint_32 flags)); -#endif - -#if defined(PNG_READ_SWAP_ALPHA_SUPPORTED) -PNG_EXTERN void png_do_read_swap_alpha PNGARG((png_row_infop row_info, - png_bytep row)); -#endif - -#if defined(PNG_WRITE_SWAP_ALPHA_SUPPORTED) -PNG_EXTERN void png_do_write_swap_alpha PNGARG((png_row_infop row_info, - png_bytep row)); -#endif - -#if defined(PNG_READ_INVERT_ALPHA_SUPPORTED) -PNG_EXTERN void png_do_read_invert_alpha PNGARG((png_row_infop row_info, - png_bytep row)); -#endif - -#if defined(PNG_WRITE_INVERT_ALPHA_SUPPORTED) -PNG_EXTERN void png_do_write_invert_alpha PNGARG((png_row_infop row_info, - png_bytep row)); -#endif - -#if defined(PNG_WRITE_FILLER_SUPPORTED) || \ - defined(PNG_READ_STRIP_ALPHA_SUPPORTED) -PNG_EXTERN void png_do_strip_filler PNGARG((png_row_infop row_info, - png_bytep row, png_uint_32 flags)); -#endif - -#if defined(PNG_READ_SWAP_SUPPORTED) || defined(PNG_WRITE_SWAP_SUPPORTED) -PNG_EXTERN void png_do_swap PNGARG((png_row_infop row_info, png_bytep row)); -#endif - -#if defined(PNG_READ_PACKSWAP_SUPPORTED) || defined(PNG_WRITE_PACKSWAP_SUPPORTED) -PNG_EXTERN void png_do_packswap PNGARG((png_row_infop row_info, png_bytep row)); -#endif - -#if defined(PNG_READ_RGB_TO_GRAY_SUPPORTED) -PNG_EXTERN int png_do_rgb_to_gray PNGARG((png_structp png_ptr, png_row_infop - row_info, png_bytep row)); -#endif - -#if defined(PNG_READ_GRAY_TO_RGB_SUPPORTED) -PNG_EXTERN void png_do_gray_to_rgb PNGARG((png_row_infop row_info, - png_bytep row)); -#endif - -#if defined(PNG_READ_PACK_SUPPORTED) -PNG_EXTERN void png_do_unpack PNGARG((png_row_infop row_info, png_bytep row)); -#endif - -#if defined(PNG_READ_SHIFT_SUPPORTED) -PNG_EXTERN void png_do_unshift PNGARG((png_row_infop row_info, png_bytep row, - png_color_8p sig_bits)); -#endif - -#if defined(PNG_READ_INVERT_SUPPORTED) || defined(PNG_WRITE_INVERT_SUPPORTED) -PNG_EXTERN void png_do_invert PNGARG((png_row_infop row_info, png_bytep row)); -#endif - -#if defined(PNG_READ_16_TO_8_SUPPORTED) -PNG_EXTERN void png_do_chop PNGARG((png_row_infop row_info, png_bytep row)); -#endif - -#if defined(PNG_READ_DITHER_SUPPORTED) -PNG_EXTERN void png_do_dither PNGARG((png_row_infop row_info, - png_bytep row, png_bytep palette_lookup, png_bytep dither_lookup)); - -# if defined(PNG_CORRECT_PALETTE_SUPPORTED) -PNG_EXTERN void png_correct_palette PNGARG((png_structp png_ptr, - png_colorp palette, int num_palette)); -# endif -#endif - -#if defined(PNG_READ_BGR_SUPPORTED) || defined(PNG_WRITE_BGR_SUPPORTED) -PNG_EXTERN void png_do_bgr PNGARG((png_row_infop row_info, png_bytep row)); -#endif - -#if defined(PNG_WRITE_PACK_SUPPORTED) -PNG_EXTERN void png_do_pack PNGARG((png_row_infop row_info, - png_bytep row, png_uint_32 bit_depth)); -#endif - -#if defined(PNG_WRITE_SHIFT_SUPPORTED) -PNG_EXTERN void png_do_shift PNGARG((png_row_infop row_info, png_bytep row, - png_color_8p bit_depth)); -#endif - -#if defined(PNG_READ_BACKGROUND_SUPPORTED) -#if defined(PNG_READ_GAMMA_SUPPORTED) -PNG_EXTERN void png_do_background PNGARG((png_row_infop row_info, png_bytep row, - png_color_16p trans_values, png_color_16p background, - png_color_16p background_1, - png_bytep gamma_table, png_bytep gamma_from_1, png_bytep gamma_to_1, - png_uint_16pp gamma_16, png_uint_16pp gamma_16_from_1, - png_uint_16pp gamma_16_to_1, int gamma_shift)); -#else -PNG_EXTERN void png_do_background PNGARG((png_row_infop row_info, png_bytep row, - png_color_16p trans_values, png_color_16p background)); -#endif -#endif - -#if defined(PNG_READ_GAMMA_SUPPORTED) -PNG_EXTERN void png_do_gamma PNGARG((png_row_infop row_info, png_bytep row, - png_bytep gamma_table, png_uint_16pp gamma_16_table, - int gamma_shift)); -#endif - -#if defined(PNG_READ_EXPAND_SUPPORTED) -PNG_EXTERN void png_do_expand_palette PNGARG((png_row_infop row_info, - png_bytep row, png_colorp palette, png_bytep trans, int num_trans)); -PNG_EXTERN void png_do_expand PNGARG((png_row_infop row_info, - png_bytep row, png_color_16p trans_value)); -#endif - -/* The following decodes the appropriate chunks, and does error correction, - * then calls the appropriate callback for the chunk if it is valid. - */ - -/* decode the IHDR chunk */ -PNG_EXTERN void png_handle_IHDR PNGARG((png_structp png_ptr, png_infop info_ptr, - png_uint_32 length)); -PNG_EXTERN void png_handle_PLTE PNGARG((png_structp png_ptr, png_infop info_ptr, - png_uint_32 length)); -PNG_EXTERN void png_handle_IEND PNGARG((png_structp png_ptr, png_infop info_ptr, - png_uint_32 length)); - -#if defined(PNG_READ_bKGD_SUPPORTED) -PNG_EXTERN void png_handle_bKGD PNGARG((png_structp png_ptr, png_infop info_ptr, - png_uint_32 length)); -#endif - -#if defined(PNG_READ_cHRM_SUPPORTED) -PNG_EXTERN void png_handle_cHRM PNGARG((png_structp png_ptr, png_infop info_ptr, - png_uint_32 length)); -#endif - -#if defined(PNG_READ_gAMA_SUPPORTED) -PNG_EXTERN void png_handle_gAMA PNGARG((png_structp png_ptr, png_infop info_ptr, - png_uint_32 length)); -#endif - -#if defined(PNG_READ_hIST_SUPPORTED) -PNG_EXTERN void png_handle_hIST PNGARG((png_structp png_ptr, png_infop info_ptr, - png_uint_32 length)); -#endif - -#if defined(PNG_READ_iCCP_SUPPORTED) -extern void png_handle_iCCP PNGARG((png_structp png_ptr, png_infop info_ptr, - png_uint_32 length)); -#endif /* PNG_READ_iCCP_SUPPORTED */ - -#if defined(PNG_READ_iTXt_SUPPORTED) -PNG_EXTERN void png_handle_iTXt PNGARG((png_structp png_ptr, png_infop info_ptr, - png_uint_32 length)); -#endif - -#if defined(PNG_READ_oFFs_SUPPORTED) -PNG_EXTERN void png_handle_oFFs PNGARG((png_structp png_ptr, png_infop info_ptr, - png_uint_32 length)); -#endif - -#if defined(PNG_READ_pCAL_SUPPORTED) -PNG_EXTERN void png_handle_pCAL PNGARG((png_structp png_ptr, png_infop info_ptr, - png_uint_32 length)); -#endif - -#if defined(PNG_READ_pHYs_SUPPORTED) -PNG_EXTERN void png_handle_pHYs PNGARG((png_structp png_ptr, png_infop info_ptr, - png_uint_32 length)); -#endif - -#if defined(PNG_READ_sBIT_SUPPORTED) -PNG_EXTERN void png_handle_sBIT PNGARG((png_structp png_ptr, png_infop info_ptr, - png_uint_32 length)); -#endif - -#if defined(PNG_READ_sCAL_SUPPORTED) -PNG_EXTERN void png_handle_sCAL PNGARG((png_structp png_ptr, png_infop info_ptr, - png_uint_32 length)); -#endif - -#if defined(PNG_READ_sPLT_SUPPORTED) -extern void png_handle_sPLT PNGARG((png_structp png_ptr, png_infop info_ptr, - png_uint_32 length)); -#endif /* PNG_READ_sPLT_SUPPORTED */ - -#if defined(PNG_READ_sRGB_SUPPORTED) -PNG_EXTERN void png_handle_sRGB PNGARG((png_structp png_ptr, png_infop info_ptr, - png_uint_32 length)); -#endif - -#if defined(PNG_READ_tEXt_SUPPORTED) -PNG_EXTERN void png_handle_tEXt PNGARG((png_structp png_ptr, png_infop info_ptr, - png_uint_32 length)); -#endif - -#if defined(PNG_READ_tIME_SUPPORTED) -PNG_EXTERN void png_handle_tIME PNGARG((png_structp png_ptr, png_infop info_ptr, - png_uint_32 length)); -#endif - -#if defined(PNG_READ_tRNS_SUPPORTED) -PNG_EXTERN void png_handle_tRNS PNGARG((png_structp png_ptr, png_infop info_ptr, - png_uint_32 length)); -#endif - -#if defined(PNG_READ_zTXt_SUPPORTED) -PNG_EXTERN void png_handle_zTXt PNGARG((png_structp png_ptr, png_infop info_ptr, - png_uint_32 length)); -#endif - -PNG_EXTERN void png_handle_unknown PNGARG((png_structp png_ptr, - png_infop info_ptr, png_uint_32 length)); - -PNG_EXTERN void png_check_chunk_name PNGARG((png_structp png_ptr, - png_bytep chunk_name)); - -/* handle the transformations for reading and writing */ -PNG_EXTERN void png_do_read_transformations PNGARG((png_structp png_ptr)); -PNG_EXTERN void png_do_write_transformations PNGARG((png_structp png_ptr)); - -PNG_EXTERN void png_init_read_transformations PNGARG((png_structp png_ptr)); - -#ifdef PNG_PROGRESSIVE_READ_SUPPORTED -PNG_EXTERN void png_push_read_chunk PNGARG((png_structp png_ptr, - png_infop info_ptr)); -PNG_EXTERN void png_push_read_sig PNGARG((png_structp png_ptr, - png_infop info_ptr)); -PNG_EXTERN void png_push_check_crc PNGARG((png_structp png_ptr)); -PNG_EXTERN void png_push_crc_skip PNGARG((png_structp png_ptr, - png_uint_32 length)); -PNG_EXTERN void png_push_crc_finish PNGARG((png_structp png_ptr)); -PNG_EXTERN void png_push_save_buffer PNGARG((png_structp png_ptr)); -PNG_EXTERN void png_push_restore_buffer PNGARG((png_structp png_ptr, - png_bytep buffer, png_size_t buffer_length)); -PNG_EXTERN void png_push_read_IDAT PNGARG((png_structp png_ptr)); -PNG_EXTERN void png_process_IDAT_data PNGARG((png_structp png_ptr, - png_bytep buffer, png_size_t buffer_length)); -PNG_EXTERN void png_push_process_row PNGARG((png_structp png_ptr)); -PNG_EXTERN void png_push_handle_unknown PNGARG((png_structp png_ptr, - png_infop info_ptr, png_uint_32 length)); -PNG_EXTERN void png_push_have_info PNGARG((png_structp png_ptr, - png_infop info_ptr)); -PNG_EXTERN void png_push_have_end PNGARG((png_structp png_ptr, - png_infop info_ptr)); -PNG_EXTERN void png_push_have_row PNGARG((png_structp png_ptr, png_bytep row)); -PNG_EXTERN void png_push_read_end PNGARG((png_structp png_ptr, - png_infop info_ptr)); -PNG_EXTERN void png_process_some_data PNGARG((png_structp png_ptr, - png_infop info_ptr)); -PNG_EXTERN void png_read_push_finish_row PNGARG((png_structp png_ptr)); -#if defined(PNG_READ_tEXt_SUPPORTED) -PNG_EXTERN void png_push_handle_tEXt PNGARG((png_structp png_ptr, - png_infop info_ptr, png_uint_32 length)); -PNG_EXTERN void png_push_read_tEXt PNGARG((png_structp png_ptr, - png_infop info_ptr)); -#endif -#if defined(PNG_READ_zTXt_SUPPORTED) -PNG_EXTERN void png_push_handle_zTXt PNGARG((png_structp png_ptr, - png_infop info_ptr, png_uint_32 length)); -PNG_EXTERN void png_push_read_zTXt PNGARG((png_structp png_ptr, - png_infop info_ptr)); -#endif -#if defined(PNG_READ_iTXt_SUPPORTED) -PNG_EXTERN void png_push_handle_iTXt PNGARG((png_structp png_ptr, - png_infop info_ptr, png_uint_32 length)); -PNG_EXTERN void png_push_read_iTXt PNGARG((png_structp png_ptr, - png_infop info_ptr)); -#endif - -#endif /* PNG_PROGRESSIVE_READ_SUPPORTED */ - -#ifdef PNG_MNG_FEATURES_SUPPORTED -PNG_EXTERN void png_do_read_intrapixel PNGARG((png_row_infop row_info, - png_bytep row)); -PNG_EXTERN void png_do_write_intrapixel PNGARG((png_row_infop row_info, - png_bytep row)); -#endif - -#if defined(PNG_ASSEMBLER_CODE_SUPPORTED) -#if defined(PNG_MMX_CODE_SUPPORTED) -/* png.c */ /* PRIVATE */ -PNG_EXTERN void png_init_mmx_flags PNGARG((png_structp png_ptr)); -#endif -#endif - -#if defined(PNG_INCH_CONVERSIONS) && defined(PNG_FLOATING_POINT_SUPPORTED) -PNG_EXTERN png_uint_32 png_get_pixels_per_inch PNGARG((png_structp png_ptr, -png_infop info_ptr)); - -PNG_EXTERN png_uint_32 png_get_x_pixels_per_inch PNGARG((png_structp png_ptr, -png_infop info_ptr)); - -PNG_EXTERN png_uint_32 png_get_y_pixels_per_inch PNGARG((png_structp png_ptr, -png_infop info_ptr)); - -PNG_EXTERN float png_get_x_offset_inches PNGARG((png_structp png_ptr, -png_infop info_ptr)); - -PNG_EXTERN float png_get_y_offset_inches PNGARG((png_structp png_ptr, -png_infop info_ptr)); - -#if defined(PNG_pHYs_SUPPORTED) -PNG_EXTERN png_uint_32 png_get_pHYs_dpi PNGARG((png_structp png_ptr, -png_infop info_ptr, png_uint_32 *res_x, png_uint_32 *res_y, int *unit_type)); -#endif /* PNG_pHYs_SUPPORTED */ -#endif /* PNG_INCH_CONVERSIONS && PNG_FLOATING_POINT_SUPPORTED */ - -/* Maintainer: Put new private prototypes here ^ and in libpngpf.3 */ - -#endif /* PNG_INTERNAL */ - -#ifdef __cplusplus -} -#endif - -#endif /* PNG_VERSION_INFO_ONLY */ -/* do not put anything past this line */ -#endif /* PNG_H */ diff --git a/src/3rdParty/CxImage/png/png.vcproj b/src/3rdParty/CxImage/png/png.vcproj deleted file mode 100644 index 269d631309..0000000000 --- a/src/3rdParty/CxImage/png/png.vcproj +++ /dev/null @@ -1,1853 +0,0 @@ - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - diff --git a/src/3rdParty/CxImage/png/pngconf.h b/src/3rdParty/CxImage/png/pngconf.h deleted file mode 100644 index c40507446f..0000000000 --- a/src/3rdParty/CxImage/png/pngconf.h +++ /dev/null @@ -1,1481 +0,0 @@ - -/* pngconf.h - machine configurable file for libpng - * - * libpng version 1.2.24 - December 14, 2007 - * For conditions of distribution and use, see copyright notice in png.h - * Copyright (c) 1998-2007 Glenn Randers-Pehrson - * (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger) - * (Version 0.88 Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.) - */ - -/* Any machine specific code is near the front of this file, so if you - * are configuring libpng for a machine, you may want to read the section - * starting here down to where it starts to typedef png_color, png_text, - * and png_info. - */ - -#ifndef PNGCONF_H -#define PNGCONF_H - -#define PNG_1_2_X - -/* - * PNG_USER_CONFIG has to be defined on the compiler command line. This - * includes the resource compiler for Windows DLL configurations. - */ -#ifdef PNG_USER_CONFIG -# ifndef PNG_USER_PRIVATEBUILD -# define PNG_USER_PRIVATEBUILD -# endif -#include "pngusr.h" -#endif - -/* PNG_CONFIGURE_LIBPNG is set by the "configure" script. */ -#ifdef PNG_CONFIGURE_LIBPNG -#ifdef HAVE_CONFIG_H -#include "config.h" -#endif -#endif - -/* - * Added at libpng-1.2.8 - * - * If you create a private DLL you need to define in "pngusr.h" the followings: - * #define PNG_USER_PRIVATEBUILD - * e.g. #define PNG_USER_PRIVATEBUILD "Build by MyCompany for xyz reasons." - * #define PNG_USER_DLLFNAME_POSTFIX - * e.g. // private DLL "libpng13gx.dll" - * #define PNG_USER_DLLFNAME_POSTFIX "gx" - * - * The following macros are also at your disposal if you want to complete the - * DLL VERSIONINFO structure. - * - PNG_USER_VERSIONINFO_COMMENTS - * - PNG_USER_VERSIONINFO_COMPANYNAME - * - PNG_USER_VERSIONINFO_LEGALTRADEMARKS - */ - -#ifdef __STDC__ -#ifdef SPECIALBUILD -# pragma message("PNG_LIBPNG_SPECIALBUILD (and deprecated SPECIALBUILD)\ - are now LIBPNG reserved macros. Use PNG_USER_PRIVATEBUILD instead.") -#endif - -#ifdef PRIVATEBUILD -# pragma message("PRIVATEBUILD is deprecated.\ - Use PNG_USER_PRIVATEBUILD instead.") -# define PNG_USER_PRIVATEBUILD PRIVATEBUILD -#endif -#endif /* __STDC__ */ - -#ifndef PNG_VERSION_INFO_ONLY - -/* End of material added to libpng-1.2.8 */ - -/* Added at libpng-1.2.19, removed at libpng-1.2.20 because it caused trouble - Restored at libpng-1.2.21 */ -#if !defined(PNG_NO_WARN_UNINITIALIZED_ROW) && \ - !defined(PNG_WARN_UNINITIALIZED_ROW) -# define PNG_WARN_UNINITIALIZED_ROW 1 -#endif -/* End of material added at libpng-1.2.19/1.2.21 */ - -/* This is the size of the compression buffer, and thus the size of - * an IDAT chunk. Make this whatever size you feel is best for your - * machine. One of these will be allocated per png_struct. When this - * is full, it writes the data to the disk, and does some other - * calculations. Making this an extremely small size will slow - * the library down, but you may want to experiment to determine - * where it becomes significant, if you are concerned with memory - * usage. Note that zlib allocates at least 32Kb also. For readers, - * this describes the size of the buffer available to read the data in. - * Unless this gets smaller than the size of a row (compressed), - * it should not make much difference how big this is. - */ - -#ifndef PNG_ZBUF_SIZE -# define PNG_ZBUF_SIZE 8192 -#endif - -/* Enable if you want a write-only libpng */ - -#ifndef PNG_NO_READ_SUPPORTED -# define PNG_READ_SUPPORTED -#endif - -/* Enable if you want a read-only libpng */ - -#ifndef PNG_NO_WRITE_SUPPORTED -# define PNG_WRITE_SUPPORTED -#endif - -/* Enabled by default in 1.2.0. You can disable this if you don't need to - support PNGs that are embedded in MNG datastreams */ -#if !defined(PNG_1_0_X) && !defined(PNG_NO_MNG_FEATURES) -# ifndef PNG_MNG_FEATURES_SUPPORTED -# define PNG_MNG_FEATURES_SUPPORTED -# endif -#endif - -#ifndef PNG_NO_FLOATING_POINT_SUPPORTED -# ifndef PNG_FLOATING_POINT_SUPPORTED -# define PNG_FLOATING_POINT_SUPPORTED -# endif -#endif - -/* If you are running on a machine where you cannot allocate more - * than 64K of memory at once, uncomment this. While libpng will not - * normally need that much memory in a chunk (unless you load up a very - * large file), zlib needs to know how big of a chunk it can use, and - * libpng thus makes sure to check any memory allocation to verify it - * will fit into memory. -#define PNG_MAX_MALLOC_64K - */ -#if defined(MAXSEG_64K) && !defined(PNG_MAX_MALLOC_64K) -# define PNG_MAX_MALLOC_64K -#endif - -/* Special munging to support doing things the 'cygwin' way: - * 'Normal' png-on-win32 defines/defaults: - * PNG_BUILD_DLL -- building dll - * PNG_USE_DLL -- building an application, linking to dll - * (no define) -- building static library, or building an - * application and linking to the static lib - * 'Cygwin' defines/defaults: - * PNG_BUILD_DLL -- (ignored) building the dll - * (no define) -- (ignored) building an application, linking to the dll - * PNG_STATIC -- (ignored) building the static lib, or building an - * application that links to the static lib. - * ALL_STATIC -- (ignored) building various static libs, or building an - * application that links to the static libs. - * Thus, - * a cygwin user should define either PNG_BUILD_DLL or PNG_STATIC, and - * this bit of #ifdefs will define the 'correct' config variables based on - * that. If a cygwin user *wants* to define 'PNG_USE_DLL' that's okay, but - * unnecessary. - * - * Also, the precedence order is: - * ALL_STATIC (since we can't #undef something outside our namespace) - * PNG_BUILD_DLL - * PNG_STATIC - * (nothing) == PNG_USE_DLL - * - * CYGWIN (2002-01-20): The preceding is now obsolete. With the advent - * of auto-import in binutils, we no longer need to worry about - * __declspec(dllexport) / __declspec(dllimport) and friends. Therefore, - * we don't need to worry about PNG_STATIC or ALL_STATIC when it comes - * to __declspec() stuff. However, we DO need to worry about - * PNG_BUILD_DLL and PNG_STATIC because those change some defaults - * such as CONSOLE_IO and whether GLOBAL_ARRAYS are allowed. - */ -#if defined(__CYGWIN__) -# if defined(ALL_STATIC) -# if defined(PNG_BUILD_DLL) -# undef PNG_BUILD_DLL -# endif -# if defined(PNG_USE_DLL) -# undef PNG_USE_DLL -# endif -# if defined(PNG_DLL) -# undef PNG_DLL -# endif -# if !defined(PNG_STATIC) -# define PNG_STATIC -# endif -# else -# if defined (PNG_BUILD_DLL) -# if defined(PNG_STATIC) -# undef PNG_STATIC -# endif -# if defined(PNG_USE_DLL) -# undef PNG_USE_DLL -# endif -# if !defined(PNG_DLL) -# define PNG_DLL -# endif -# else -# if defined(PNG_STATIC) -# if defined(PNG_USE_DLL) -# undef PNG_USE_DLL -# endif -# if defined(PNG_DLL) -# undef PNG_DLL -# endif -# else -# if !defined(PNG_USE_DLL) -# define PNG_USE_DLL -# endif -# if !defined(PNG_DLL) -# define PNG_DLL -# endif -# endif -# endif -# endif -#endif - -/* This protects us against compilers that run on a windowing system - * and thus don't have or would rather us not use the stdio types: - * stdin, stdout, and stderr. The only one currently used is stderr - * in png_error() and png_warning(). #defining PNG_NO_CONSOLE_IO will - * prevent these from being compiled and used. #defining PNG_NO_STDIO - * will also prevent these, plus will prevent the entire set of stdio - * macros and functions (FILE *, printf, etc.) from being compiled and used, - * unless (PNG_DEBUG > 0) has been #defined. - * - * #define PNG_NO_CONSOLE_IO - * #define PNG_NO_STDIO - */ - -#if defined(_WIN32_WCE) -# include - /* Console I/O functions are not supported on WindowsCE */ -# define PNG_NO_CONSOLE_IO -# ifdef PNG_DEBUG -# undef PNG_DEBUG -# endif -#endif - -#ifdef PNG_BUILD_DLL -# ifndef PNG_CONSOLE_IO_SUPPORTED -# ifndef PNG_NO_CONSOLE_IO -# define PNG_NO_CONSOLE_IO -# endif -# endif -#endif - -# ifdef PNG_NO_STDIO -# ifndef PNG_NO_CONSOLE_IO -# define PNG_NO_CONSOLE_IO -# endif -# ifdef PNG_DEBUG -# if (PNG_DEBUG > 0) -# include -# endif -# endif -# else -# if !defined(_WIN32_WCE) -/* "stdio.h" functions are not supported on WindowsCE */ -# include -# endif -# endif - -/* This macro protects us against machines that don't have function - * prototypes (ie K&R style headers). If your compiler does not handle - * function prototypes, define this macro and use the included ansi2knr. - * I've always been able to use _NO_PROTO as the indicator, but you may - * need to drag the empty declaration out in front of here, or change the - * ifdef to suit your own needs. - */ -#ifndef PNGARG - -#ifdef OF /* zlib prototype munger */ -# define PNGARG(arglist) OF(arglist) -#else - -#ifdef _NO_PROTO -# define PNGARG(arglist) () -# ifndef PNG_TYPECAST_NULL -# define PNG_TYPECAST_NULL -# endif -#else -# define PNGARG(arglist) arglist -#endif /* _NO_PROTO */ - - -#endif /* OF */ - -#endif /* PNGARG */ - -/* Try to determine if we are compiling on a Mac. Note that testing for - * just __MWERKS__ is not good enough, because the Codewarrior is now used - * on non-Mac platforms. - */ -#ifndef MACOS -# if (defined(__MWERKS__) && defined(macintosh)) || defined(applec) || \ - defined(THINK_C) || defined(__SC__) || defined(TARGET_OS_MAC) -# define MACOS -# endif -#endif - -/* enough people need this for various reasons to include it here */ -#if !defined(MACOS) && !defined(RISCOS) && !defined(_WIN32_WCE) -# include -#endif - -#if !defined(PNG_SETJMP_NOT_SUPPORTED) && !defined(PNG_NO_SETJMP_SUPPORTED) -# define PNG_SETJMP_SUPPORTED -#endif - -#ifdef PNG_SETJMP_SUPPORTED -/* This is an attempt to force a single setjmp behaviour on Linux. If - * the X config stuff didn't define _BSD_SOURCE we wouldn't need this. - */ - -# ifdef __linux__ -# ifdef _BSD_SOURCE -# define PNG_SAVE_BSD_SOURCE -# undef _BSD_SOURCE -# endif -# ifdef _SETJMP_H - /* If you encounter a compiler error here, see the explanation - * near the end of INSTALL. - */ - __pngconf.h__ already includes setjmp.h; - __dont__ include it again.; -# endif -# endif /* __linux__ */ - - /* include setjmp.h for error handling */ -# include - -# ifdef __linux__ -# ifdef PNG_SAVE_BSD_SOURCE -# ifndef _BSD_SOURCE -# define _BSD_SOURCE -# endif -# undef PNG_SAVE_BSD_SOURCE -# endif -# endif /* __linux__ */ -#endif /* PNG_SETJMP_SUPPORTED */ - -#ifdef BSD -# include -#else -# include -#endif - -/* Other defines for things like memory and the like can go here. */ -#ifdef PNG_INTERNAL - -#include - -/* The functions exported by PNG_EXTERN are PNG_INTERNAL functions, which - * aren't usually used outside the library (as far as I know), so it is - * debatable if they should be exported at all. In the future, when it is - * possible to have run-time registry of chunk-handling functions, some of - * these will be made available again. -#define PNG_EXTERN extern - */ -#define PNG_EXTERN - -/* Other defines specific to compilers can go here. Try to keep - * them inside an appropriate ifdef/endif pair for portability. - */ - -#if defined(PNG_FLOATING_POINT_SUPPORTED) -# if defined(MACOS) - /* We need to check that hasn't already been included earlier - * as it seems it doesn't agree with , yet we should really use - * if possible. - */ -# if !defined(__MATH_H__) && !defined(__MATH_H) && !defined(__cmath__) -# include -# endif -# else -# include -# endif -# if defined(_AMIGA) && defined(__SASC) && defined(_M68881) - /* Amiga SAS/C: We must include builtin FPU functions when compiling using - * MATH=68881 - */ -# include -# endif -#endif - -/* Codewarrior on NT has linking problems without this. */ -#if (defined(__MWERKS__) && defined(WIN32)) || defined(__STDC__) -# define PNG_ALWAYS_EXTERN -#endif - -/* This provides the non-ANSI (far) memory allocation routines. */ -#if defined(__TURBOC__) && defined(__MSDOS__) -# include -# include -#endif - -/* I have no idea why is this necessary... */ -#if defined(_MSC_VER) && (defined(WIN32) || defined(_Windows) || \ - defined(_WINDOWS) || defined(_WIN32) || defined(__WIN32__)) -# include -#endif - -/* This controls how fine the dithering gets. As this allocates - * a largish chunk of memory (32K), those who are not as concerned - * with dithering quality can decrease some or all of these. - */ -#ifndef PNG_DITHER_RED_BITS -# define PNG_DITHER_RED_BITS 5 -#endif -#ifndef PNG_DITHER_GREEN_BITS -# define PNG_DITHER_GREEN_BITS 5 -#endif -#ifndef PNG_DITHER_BLUE_BITS -# define PNG_DITHER_BLUE_BITS 5 -#endif - -/* This controls how fine the gamma correction becomes when you - * are only interested in 8 bits anyway. Increasing this value - * results in more memory being used, and more pow() functions - * being called to fill in the gamma tables. Don't set this value - * less then 8, and even that may not work (I haven't tested it). - */ - -#ifndef PNG_MAX_GAMMA_8 -# define PNG_MAX_GAMMA_8 11 -#endif - -/* This controls how much a difference in gamma we can tolerate before - * we actually start doing gamma conversion. - */ -#ifndef PNG_GAMMA_THRESHOLD -# define PNG_GAMMA_THRESHOLD 0.05 -#endif - -#endif /* PNG_INTERNAL */ - -/* The following uses const char * instead of char * for error - * and warning message functions, so some compilers won't complain. - * If you do not want to use const, define PNG_NO_CONST here. - */ - -#ifndef PNG_NO_CONST -# define PNG_CONST const -#else -# define PNG_CONST -#endif - -/* The following defines give you the ability to remove code from the - * library that you will not be using. I wish I could figure out how to - * automate this, but I can't do that without making it seriously hard - * on the users. So if you are not using an ability, change the #define - * to and #undef, and that part of the library will not be compiled. If - * your linker can't find a function, you may want to make sure the - * ability is defined here. Some of these depend upon some others being - * defined. I haven't figured out all the interactions here, so you may - * have to experiment awhile to get everything to compile. If you are - * creating or using a shared library, you probably shouldn't touch this, - * as it will affect the size of the structures, and this will cause bad - * things to happen if the library and/or application ever change. - */ - -/* Any features you will not be using can be undef'ed here */ - -/* GR-P, 0.96a: Set "*TRANSFORMS_SUPPORTED as default but allow user - * to turn it off with "*TRANSFORMS_NOT_SUPPORTED" or *PNG_NO_*_TRANSFORMS - * on the compile line, then pick and choose which ones to define without - * having to edit this file. It is safe to use the *TRANSFORMS_NOT_SUPPORTED - * if you only want to have a png-compliant reader/writer but don't need - * any of the extra transformations. This saves about 80 kbytes in a - * typical installation of the library. (PNG_NO_* form added in version - * 1.0.1c, for consistency) - */ - -/* The size of the png_text structure changed in libpng-1.0.6 when - * iTXt support was added. iTXt support was turned off by default through - * libpng-1.2.x, to support old apps that malloc the png_text structure - * instead of calling png_set_text() and letting libpng malloc it. It - * was turned on by default in libpng-1.3.0. - */ - -#if defined(PNG_1_0_X) || defined (PNG_1_2_X) -# ifndef PNG_NO_iTXt_SUPPORTED -# define PNG_NO_iTXt_SUPPORTED -# endif -# ifndef PNG_NO_READ_iTXt -# define PNG_NO_READ_iTXt -# endif -# ifndef PNG_NO_WRITE_iTXt -# define PNG_NO_WRITE_iTXt -# endif -#endif - -#if !defined(PNG_NO_iTXt_SUPPORTED) -# if !defined(PNG_READ_iTXt_SUPPORTED) && !defined(PNG_NO_READ_iTXt) -# define PNG_READ_iTXt -# endif -# if !defined(PNG_WRITE_iTXt_SUPPORTED) && !defined(PNG_NO_WRITE_iTXt) -# define PNG_WRITE_iTXt -# endif -#endif - -/* The following support, added after version 1.0.0, can be turned off here en - * masse by defining PNG_LEGACY_SUPPORTED in case you need binary compatibility - * with old applications that require the length of png_struct and png_info - * to remain unchanged. - */ - -#ifdef PNG_LEGACY_SUPPORTED -# define PNG_NO_FREE_ME -# define PNG_NO_READ_UNKNOWN_CHUNKS -# define PNG_NO_WRITE_UNKNOWN_CHUNKS -# define PNG_NO_READ_USER_CHUNKS -# define PNG_NO_READ_iCCP -# define PNG_NO_WRITE_iCCP -# define PNG_NO_READ_iTXt -# define PNG_NO_WRITE_iTXt -# define PNG_NO_READ_sCAL -# define PNG_NO_WRITE_sCAL -# define PNG_NO_READ_sPLT -# define PNG_NO_WRITE_sPLT -# define PNG_NO_INFO_IMAGE -# define PNG_NO_READ_RGB_TO_GRAY -# define PNG_NO_READ_USER_TRANSFORM -# define PNG_NO_WRITE_USER_TRANSFORM -# define PNG_NO_USER_MEM -# define PNG_NO_READ_EMPTY_PLTE -# define PNG_NO_MNG_FEATURES -# define PNG_NO_FIXED_POINT_SUPPORTED -#endif - -/* Ignore attempt to turn off both floating and fixed point support */ -#if !defined(PNG_FLOATING_POINT_SUPPORTED) || \ - !defined(PNG_NO_FIXED_POINT_SUPPORTED) -# define PNG_FIXED_POINT_SUPPORTED -#endif - -#ifndef PNG_NO_FREE_ME -# define PNG_FREE_ME_SUPPORTED -#endif - -#if defined(PNG_READ_SUPPORTED) - -#if !defined(PNG_READ_TRANSFORMS_NOT_SUPPORTED) && \ - !defined(PNG_NO_READ_TRANSFORMS) -# define PNG_READ_TRANSFORMS_SUPPORTED -#endif - -#ifdef PNG_READ_TRANSFORMS_SUPPORTED -# ifndef PNG_NO_READ_EXPAND -# define PNG_READ_EXPAND_SUPPORTED -# endif -# ifndef PNG_NO_READ_SHIFT -# define PNG_READ_SHIFT_SUPPORTED -# endif -# ifndef PNG_NO_READ_PACK -# define PNG_READ_PACK_SUPPORTED -# endif -# ifndef PNG_NO_READ_BGR -# define PNG_READ_BGR_SUPPORTED -# endif -# ifndef PNG_NO_READ_SWAP -# define PNG_READ_SWAP_SUPPORTED -# endif -# ifndef PNG_NO_READ_PACKSWAP -# define PNG_READ_PACKSWAP_SUPPORTED -# endif -# ifndef PNG_NO_READ_INVERT -# define PNG_READ_INVERT_SUPPORTED -# endif -# ifndef PNG_NO_READ_DITHER -# define PNG_READ_DITHER_SUPPORTED -# endif -# ifndef PNG_NO_READ_BACKGROUND -# define PNG_READ_BACKGROUND_SUPPORTED -# endif -# ifndef PNG_NO_READ_16_TO_8 -# define PNG_READ_16_TO_8_SUPPORTED -# endif -# ifndef PNG_NO_READ_FILLER -# define PNG_READ_FILLER_SUPPORTED -# endif -# ifndef PNG_NO_READ_GAMMA -# define PNG_READ_GAMMA_SUPPORTED -# endif -# ifndef PNG_NO_READ_GRAY_TO_RGB -# define PNG_READ_GRAY_TO_RGB_SUPPORTED -# endif -# ifndef PNG_NO_READ_SWAP_ALPHA -# define PNG_READ_SWAP_ALPHA_SUPPORTED -# endif -# ifndef PNG_NO_READ_INVERT_ALPHA -# define PNG_READ_INVERT_ALPHA_SUPPORTED -# endif -# ifndef PNG_NO_READ_STRIP_ALPHA -# define PNG_READ_STRIP_ALPHA_SUPPORTED -# endif -# ifndef PNG_NO_READ_USER_TRANSFORM -# define PNG_READ_USER_TRANSFORM_SUPPORTED -# endif -# ifndef PNG_NO_READ_RGB_TO_GRAY -# define PNG_READ_RGB_TO_GRAY_SUPPORTED -# endif -#endif /* PNG_READ_TRANSFORMS_SUPPORTED */ - -#if !defined(PNG_NO_PROGRESSIVE_READ) && \ - !defined(PNG_PROGRESSIVE_READ_SUPPORTED) /* if you don't do progressive */ -# define PNG_PROGRESSIVE_READ_SUPPORTED /* reading. This is not talking */ -#endif /* about interlacing capability! You'll */ - /* still have interlacing unless you change the following line: */ - -#define PNG_READ_INTERLACING_SUPPORTED /* required in PNG-compliant decoders */ - -#ifndef PNG_NO_READ_COMPOSITE_NODIV -# ifndef PNG_NO_READ_COMPOSITED_NODIV /* libpng-1.0.x misspelling */ -# define PNG_READ_COMPOSITE_NODIV_SUPPORTED /* well tested on Intel, SGI */ -# endif -#endif - -#if defined(PNG_1_0_X) || defined (PNG_1_2_X) -/* Deprecated, will be removed from version 2.0.0. - Use PNG_MNG_FEATURES_SUPPORTED instead. */ -#ifndef PNG_NO_READ_EMPTY_PLTE -# define PNG_READ_EMPTY_PLTE_SUPPORTED -#endif -#endif - -#endif /* PNG_READ_SUPPORTED */ - -#if defined(PNG_WRITE_SUPPORTED) - -# if !defined(PNG_WRITE_TRANSFORMS_NOT_SUPPORTED) && \ - !defined(PNG_NO_WRITE_TRANSFORMS) -# define PNG_WRITE_TRANSFORMS_SUPPORTED -#endif - -#ifdef PNG_WRITE_TRANSFORMS_SUPPORTED -# ifndef PNG_NO_WRITE_SHIFT -# define PNG_WRITE_SHIFT_SUPPORTED -# endif -# ifndef PNG_NO_WRITE_PACK -# define PNG_WRITE_PACK_SUPPORTED -# endif -# ifndef PNG_NO_WRITE_BGR -# define PNG_WRITE_BGR_SUPPORTED -# endif -# ifndef PNG_NO_WRITE_SWAP -# define PNG_WRITE_SWAP_SUPPORTED -# endif -# ifndef PNG_NO_WRITE_PACKSWAP -# define PNG_WRITE_PACKSWAP_SUPPORTED -# endif -# ifndef PNG_NO_WRITE_INVERT -# define PNG_WRITE_INVERT_SUPPORTED -# endif -# ifndef PNG_NO_WRITE_FILLER -# define PNG_WRITE_FILLER_SUPPORTED /* same as WRITE_STRIP_ALPHA */ -# endif -# ifndef PNG_NO_WRITE_SWAP_ALPHA -# define PNG_WRITE_SWAP_ALPHA_SUPPORTED -# endif -# ifndef PNG_NO_WRITE_INVERT_ALPHA -# define PNG_WRITE_INVERT_ALPHA_SUPPORTED -# endif -# ifndef PNG_NO_WRITE_USER_TRANSFORM -# define PNG_WRITE_USER_TRANSFORM_SUPPORTED -# endif -#endif /* PNG_WRITE_TRANSFORMS_SUPPORTED */ - -#if !defined(PNG_NO_WRITE_INTERLACING_SUPPORTED) && \ - !defined(PNG_WRITE_INTERLACING_SUPPORTED) -#define PNG_WRITE_INTERLACING_SUPPORTED /* not required for PNG-compliant - encoders, but can cause trouble - if left undefined */ -#endif - -#if !defined(PNG_NO_WRITE_WEIGHTED_FILTER) && \ - !defined(PNG_WRITE_WEIGHTED_FILTER) && \ - defined(PNG_FLOATING_POINT_SUPPORTED) -# define PNG_WRITE_WEIGHTED_FILTER_SUPPORTED -#endif - -#ifndef PNG_NO_WRITE_FLUSH -# define PNG_WRITE_FLUSH_SUPPORTED -#endif - -#if defined(PNG_1_0_X) || defined (PNG_1_2_X) -/* Deprecated, see PNG_MNG_FEATURES_SUPPORTED, above */ -#ifndef PNG_NO_WRITE_EMPTY_PLTE -# define PNG_WRITE_EMPTY_PLTE_SUPPORTED -#endif -#endif - -#endif /* PNG_WRITE_SUPPORTED */ - -#ifndef PNG_1_0_X -# ifndef PNG_NO_ERROR_NUMBERS -# define PNG_ERROR_NUMBERS_SUPPORTED -# endif -#endif /* PNG_1_0_X */ - -#if defined(PNG_READ_USER_TRANSFORM_SUPPORTED) || \ - defined(PNG_WRITE_USER_TRANSFORM_SUPPORTED) -# ifndef PNG_NO_USER_TRANSFORM_PTR -# define PNG_USER_TRANSFORM_PTR_SUPPORTED -# endif -#endif - -#ifndef PNG_NO_STDIO -# define PNG_TIME_RFC1123_SUPPORTED -#endif - -/* This adds extra functions in pngget.c for accessing data from the - * info pointer (added in version 0.99) - * png_get_image_width() - * png_get_image_height() - * png_get_bit_depth() - * png_get_color_type() - * png_get_compression_type() - * png_get_filter_type() - * png_get_interlace_type() - * png_get_pixel_aspect_ratio() - * png_get_pixels_per_meter() - * png_get_x_offset_pixels() - * png_get_y_offset_pixels() - * png_get_x_offset_microns() - * png_get_y_offset_microns() - */ -#if !defined(PNG_NO_EASY_ACCESS) && !defined(PNG_EASY_ACCESS_SUPPORTED) -# define PNG_EASY_ACCESS_SUPPORTED -#endif - -/* PNG_ASSEMBLER_CODE was enabled by default in version 1.2.0 - * and removed from version 1.2.20. The following will be removed - * from libpng-1.4.0 -*/ - -#if defined(PNG_READ_SUPPORTED) && !defined(PNG_NO_OPTIMIZED_CODE) -# ifndef PNG_OPTIMIZED_CODE_SUPPORTED -# define PNG_OPTIMIZED_CODE_SUPPORTED -# endif -#endif - -#if defined(PNG_READ_SUPPORTED) && !defined(PNG_NO_ASSEMBLER_CODE) -# ifndef PNG_ASSEMBLER_CODE_SUPPORTED -# define PNG_ASSEMBLER_CODE_SUPPORTED -# endif - -# if defined(__GNUC__) && defined(__x86_64__) && (__GNUC__ < 4) - /* work around 64-bit gcc compiler bugs in gcc-3.x */ -# if !defined(PNG_MMX_CODE_SUPPORTED) && !defined(PNG_NO_MMX_CODE) -# define PNG_NO_MMX_CODE -# endif -# endif - -# if defined(__APPLE__) -# if !defined(PNG_MMX_CODE_SUPPORTED) && !defined(PNG_NO_MMX_CODE) -# define PNG_NO_MMX_CODE -# endif -# endif - -# if (defined(__MWERKS__) && ((__MWERKS__ < 0x0900) || macintosh)) -# if !defined(PNG_MMX_CODE_SUPPORTED) && !defined(PNG_NO_MMX_CODE) -# define PNG_NO_MMX_CODE -# endif -# endif - -# if !defined(PNG_MMX_CODE_SUPPORTED) && !defined(PNG_NO_MMX_CODE) -# define PNG_MMX_CODE_SUPPORTED -# endif - -#endif -/* end of obsolete code to be removed from libpng-1.4.0 */ - -#if !defined(PNG_1_0_X) -#if !defined(PNG_NO_USER_MEM) && !defined(PNG_USER_MEM_SUPPORTED) -# define PNG_USER_MEM_SUPPORTED -#endif -#endif /* PNG_1_0_X */ - -/* Added at libpng-1.2.6 */ -#if !defined(PNG_1_0_X) -#ifndef PNG_SET_USER_LIMITS_SUPPORTED -#if !defined(PNG_NO_SET_USER_LIMITS) && !defined(PNG_SET_USER_LIMITS_SUPPORTED) -# define PNG_SET_USER_LIMITS_SUPPORTED -#endif -#endif -#endif /* PNG_1_0_X */ - -/* Added at libpng-1.0.16 and 1.2.6. To accept all valid PNGS no matter - * how large, set these limits to 0x7fffffffL - */ -#ifndef PNG_USER_WIDTH_MAX -# define PNG_USER_WIDTH_MAX 1000000L -#endif -#ifndef PNG_USER_HEIGHT_MAX -# define PNG_USER_HEIGHT_MAX 1000000L -#endif - -/* These are currently experimental features, define them if you want */ - -/* very little testing */ -/* -#ifdef PNG_READ_SUPPORTED -# ifndef PNG_READ_16_TO_8_ACCURATE_SCALE_SUPPORTED -# define PNG_READ_16_TO_8_ACCURATE_SCALE_SUPPORTED -# endif -#endif -*/ - -/* This is only for PowerPC big-endian and 680x0 systems */ -/* some testing */ -/* -#ifndef PNG_READ_BIG_ENDIAN_SUPPORTED -# define PNG_READ_BIG_ENDIAN_SUPPORTED -#endif -*/ - -/* Buggy compilers (e.g., gcc 2.7.2.2) need this */ -/* -#define PNG_NO_POINTER_INDEXING -*/ - -/* These functions are turned off by default, as they will be phased out. */ -/* -#define PNG_USELESS_TESTS_SUPPORTED -#define PNG_CORRECT_PALETTE_SUPPORTED -*/ - -/* Any chunks you are not interested in, you can undef here. The - * ones that allocate memory may be expecially important (hIST, - * tEXt, zTXt, tRNS, pCAL). Others will just save time and make png_info - * a bit smaller. - */ - -#if defined(PNG_READ_SUPPORTED) && \ - !defined(PNG_READ_ANCILLARY_CHUNKS_NOT_SUPPORTED) && \ - !defined(PNG_NO_READ_ANCILLARY_CHUNKS) -# define PNG_READ_ANCILLARY_CHUNKS_SUPPORTED -#endif - -#if defined(PNG_WRITE_SUPPORTED) && \ - !defined(PNG_WRITE_ANCILLARY_CHUNKS_NOT_SUPPORTED) && \ - !defined(PNG_NO_WRITE_ANCILLARY_CHUNKS) -# define PNG_WRITE_ANCILLARY_CHUNKS_SUPPORTED -#endif - -#ifdef PNG_READ_ANCILLARY_CHUNKS_SUPPORTED - -#ifdef PNG_NO_READ_TEXT -# define PNG_NO_READ_iTXt -# define PNG_NO_READ_tEXt -# define PNG_NO_READ_zTXt -#endif -#ifndef PNG_NO_READ_bKGD -# define PNG_READ_bKGD_SUPPORTED -# define PNG_bKGD_SUPPORTED -#endif -#ifndef PNG_NO_READ_cHRM -# define PNG_READ_cHRM_SUPPORTED -# define PNG_cHRM_SUPPORTED -#endif -#ifndef PNG_NO_READ_gAMA -# define PNG_READ_gAMA_SUPPORTED -# define PNG_gAMA_SUPPORTED -#endif -#ifndef PNG_NO_READ_hIST -# define PNG_READ_hIST_SUPPORTED -# define PNG_hIST_SUPPORTED -#endif -#ifndef PNG_NO_READ_iCCP -# define PNG_READ_iCCP_SUPPORTED -# define PNG_iCCP_SUPPORTED -#endif -#ifndef PNG_NO_READ_iTXt -# ifndef PNG_READ_iTXt_SUPPORTED -# define PNG_READ_iTXt_SUPPORTED -# endif -# ifndef PNG_iTXt_SUPPORTED -# define PNG_iTXt_SUPPORTED -# endif -#endif -#ifndef PNG_NO_READ_oFFs -# define PNG_READ_oFFs_SUPPORTED -# define PNG_oFFs_SUPPORTED -#endif -#ifndef PNG_NO_READ_pCAL -# define PNG_READ_pCAL_SUPPORTED -# define PNG_pCAL_SUPPORTED -#endif -#ifndef PNG_NO_READ_sCAL -# define PNG_READ_sCAL_SUPPORTED -# define PNG_sCAL_SUPPORTED -#endif -#ifndef PNG_NO_READ_pHYs -# define PNG_READ_pHYs_SUPPORTED -# define PNG_pHYs_SUPPORTED -#endif -#ifndef PNG_NO_READ_sBIT -# define PNG_READ_sBIT_SUPPORTED -# define PNG_sBIT_SUPPORTED -#endif -#ifndef PNG_NO_READ_sPLT -# define PNG_READ_sPLT_SUPPORTED -# define PNG_sPLT_SUPPORTED -#endif -#ifndef PNG_NO_READ_sRGB -# define PNG_READ_sRGB_SUPPORTED -# define PNG_sRGB_SUPPORTED -#endif -#ifndef PNG_NO_READ_tEXt -# define PNG_READ_tEXt_SUPPORTED -# define PNG_tEXt_SUPPORTED -#endif -#ifndef PNG_NO_READ_tIME -# define PNG_READ_tIME_SUPPORTED -# define PNG_tIME_SUPPORTED -#endif -#ifndef PNG_NO_READ_tRNS -# define PNG_READ_tRNS_SUPPORTED -# define PNG_tRNS_SUPPORTED -#endif -#ifndef PNG_NO_READ_zTXt -# define PNG_READ_zTXt_SUPPORTED -# define PNG_zTXt_SUPPORTED -#endif -#ifndef PNG_NO_READ_UNKNOWN_CHUNKS -# define PNG_READ_UNKNOWN_CHUNKS_SUPPORTED -# ifndef PNG_UNKNOWN_CHUNKS_SUPPORTED -# define PNG_UNKNOWN_CHUNKS_SUPPORTED -# endif -# ifndef PNG_NO_HANDLE_AS_UNKNOWN -# define PNG_HANDLE_AS_UNKNOWN_SUPPORTED -# endif -#endif -#if !defined(PNG_NO_READ_USER_CHUNKS) && \ - defined(PNG_READ_UNKNOWN_CHUNKS_SUPPORTED) -# define PNG_READ_USER_CHUNKS_SUPPORTED -# define PNG_USER_CHUNKS_SUPPORTED -# ifdef PNG_NO_READ_UNKNOWN_CHUNKS -# undef PNG_NO_READ_UNKNOWN_CHUNKS -# endif -# ifdef PNG_NO_HANDLE_AS_UNKNOWN -# undef PNG_NO_HANDLE_AS_UNKNOWN -# endif -#endif -#ifndef PNG_NO_READ_OPT_PLTE -# define PNG_READ_OPT_PLTE_SUPPORTED /* only affects support of the */ -#endif /* optional PLTE chunk in RGB and RGBA images */ -#if defined(PNG_READ_iTXt_SUPPORTED) || defined(PNG_READ_tEXt_SUPPORTED) || \ - defined(PNG_READ_zTXt_SUPPORTED) -# define PNG_READ_TEXT_SUPPORTED -# define PNG_TEXT_SUPPORTED -#endif - -#endif /* PNG_READ_ANCILLARY_CHUNKS_SUPPORTED */ - -#ifdef PNG_WRITE_ANCILLARY_CHUNKS_SUPPORTED - -#ifdef PNG_NO_WRITE_TEXT -# define PNG_NO_WRITE_iTXt -# define PNG_NO_WRITE_tEXt -# define PNG_NO_WRITE_zTXt -#endif -#ifndef PNG_NO_WRITE_bKGD -# define PNG_WRITE_bKGD_SUPPORTED -# ifndef PNG_bKGD_SUPPORTED -# define PNG_bKGD_SUPPORTED -# endif -#endif -#ifndef PNG_NO_WRITE_cHRM -# define PNG_WRITE_cHRM_SUPPORTED -# ifndef PNG_cHRM_SUPPORTED -# define PNG_cHRM_SUPPORTED -# endif -#endif -#ifndef PNG_NO_WRITE_gAMA -# define PNG_WRITE_gAMA_SUPPORTED -# ifndef PNG_gAMA_SUPPORTED -# define PNG_gAMA_SUPPORTED -# endif -#endif -#ifndef PNG_NO_WRITE_hIST -# define PNG_WRITE_hIST_SUPPORTED -# ifndef PNG_hIST_SUPPORTED -# define PNG_hIST_SUPPORTED -# endif -#endif -#ifndef PNG_NO_WRITE_iCCP -# define PNG_WRITE_iCCP_SUPPORTED -# ifndef PNG_iCCP_SUPPORTED -# define PNG_iCCP_SUPPORTED -# endif -#endif -#ifndef PNG_NO_WRITE_iTXt -# ifndef PNG_WRITE_iTXt_SUPPORTED -# define PNG_WRITE_iTXt_SUPPORTED -# endif -# ifndef PNG_iTXt_SUPPORTED -# define PNG_iTXt_SUPPORTED -# endif -#endif -#ifndef PNG_NO_WRITE_oFFs -# define PNG_WRITE_oFFs_SUPPORTED -# ifndef PNG_oFFs_SUPPORTED -# define PNG_oFFs_SUPPORTED -# endif -#endif -#ifndef PNG_NO_WRITE_pCAL -# define PNG_WRITE_pCAL_SUPPORTED -# ifndef PNG_pCAL_SUPPORTED -# define PNG_pCAL_SUPPORTED -# endif -#endif -#ifndef PNG_NO_WRITE_sCAL -# define PNG_WRITE_sCAL_SUPPORTED -# ifndef PNG_sCAL_SUPPORTED -# define PNG_sCAL_SUPPORTED -# endif -#endif -#ifndef PNG_NO_WRITE_pHYs -# define PNG_WRITE_pHYs_SUPPORTED -# ifndef PNG_pHYs_SUPPORTED -# define PNG_pHYs_SUPPORTED -# endif -#endif -#ifndef PNG_NO_WRITE_sBIT -# define PNG_WRITE_sBIT_SUPPORTED -# ifndef PNG_sBIT_SUPPORTED -# define PNG_sBIT_SUPPORTED -# endif -#endif -#ifndef PNG_NO_WRITE_sPLT -# define PNG_WRITE_sPLT_SUPPORTED -# ifndef PNG_sPLT_SUPPORTED -# define PNG_sPLT_SUPPORTED -# endif -#endif -#ifndef PNG_NO_WRITE_sRGB -# define PNG_WRITE_sRGB_SUPPORTED -# ifndef PNG_sRGB_SUPPORTED -# define PNG_sRGB_SUPPORTED -# endif -#endif -#ifndef PNG_NO_WRITE_tEXt -# define PNG_WRITE_tEXt_SUPPORTED -# ifndef PNG_tEXt_SUPPORTED -# define PNG_tEXt_SUPPORTED -# endif -#endif -#ifndef PNG_NO_WRITE_tIME -# define PNG_WRITE_tIME_SUPPORTED -# ifndef PNG_tIME_SUPPORTED -# define PNG_tIME_SUPPORTED -# endif -#endif -#ifndef PNG_NO_WRITE_tRNS -# define PNG_WRITE_tRNS_SUPPORTED -# ifndef PNG_tRNS_SUPPORTED -# define PNG_tRNS_SUPPORTED -# endif -#endif -#ifndef PNG_NO_WRITE_zTXt -# define PNG_WRITE_zTXt_SUPPORTED -# ifndef PNG_zTXt_SUPPORTED -# define PNG_zTXt_SUPPORTED -# endif -#endif -#ifndef PNG_NO_WRITE_UNKNOWN_CHUNKS -# define PNG_WRITE_UNKNOWN_CHUNKS_SUPPORTED -# ifndef PNG_UNKNOWN_CHUNKS_SUPPORTED -# define PNG_UNKNOWN_CHUNKS_SUPPORTED -# endif -# ifndef PNG_NO_HANDLE_AS_UNKNOWN -# ifndef PNG_HANDLE_AS_UNKNOWN_SUPPORTED -# define PNG_HANDLE_AS_UNKNOWN_SUPPORTED -# endif -# endif -#endif -#if defined(PNG_WRITE_iTXt_SUPPORTED) || defined(PNG_WRITE_tEXt_SUPPORTED) || \ - defined(PNG_WRITE_zTXt_SUPPORTED) -# define PNG_WRITE_TEXT_SUPPORTED -# ifndef PNG_TEXT_SUPPORTED -# define PNG_TEXT_SUPPORTED -# endif -#endif - -#endif /* PNG_WRITE_ANCILLARY_CHUNKS_SUPPORTED */ - -/* Turn this off to disable png_read_png() and - * png_write_png() and leave the row_pointers member - * out of the info structure. - */ -#ifndef PNG_NO_INFO_IMAGE -# define PNG_INFO_IMAGE_SUPPORTED -#endif - -/* need the time information for reading tIME chunks */ -#if defined(PNG_tIME_SUPPORTED) -# if !defined(_WIN32_WCE) - /* "time.h" functions are not supported on WindowsCE */ -# include -# endif -#endif - -/* Some typedefs to get us started. These should be safe on most of the - * common platforms. The typedefs should be at least as large as the - * numbers suggest (a png_uint_32 must be at least 32 bits long), but they - * don't have to be exactly that size. Some compilers dislike passing - * unsigned shorts as function parameters, so you may be better off using - * unsigned int for png_uint_16. Likewise, for 64-bit systems, you may - * want to have unsigned int for png_uint_32 instead of unsigned long. - */ - -typedef unsigned long png_uint_32; -typedef long png_int_32; -typedef unsigned short png_uint_16; -typedef short png_int_16; -typedef unsigned char png_byte; - -/* This is usually size_t. It is typedef'ed just in case you need it to - change (I'm not sure if you will or not, so I thought I'd be safe) */ -#ifdef PNG_SIZE_T - typedef PNG_SIZE_T png_size_t; -# define png_sizeof(x) png_convert_size(sizeof (x)) -#else - typedef size_t png_size_t; -# define png_sizeof(x) sizeof (x) -#endif - -/* The following is needed for medium model support. It cannot be in the - * PNG_INTERNAL section. Needs modification for other compilers besides - * MSC. Model independent support declares all arrays and pointers to be - * large using the far keyword. The zlib version used must also support - * model independent data. As of version zlib 1.0.4, the necessary changes - * have been made in zlib. The USE_FAR_KEYWORD define triggers other - * changes that are needed. (Tim Wegner) - */ - -/* Separate compiler dependencies (problem here is that zlib.h always - defines FAR. (SJT) */ -#ifdef __BORLANDC__ -# if defined(__LARGE__) || defined(__HUGE__) || defined(__COMPACT__) -# define LDATA 1 -# else -# define LDATA 0 -# endif - /* GRR: why is Cygwin in here? Cygwin is not Borland C... */ -# if !defined(__WIN32__) && !defined(__FLAT__) && !defined(__CYGWIN__) -# define PNG_MAX_MALLOC_64K -# if (LDATA != 1) -# ifndef FAR -# define FAR __far -# endif -# define USE_FAR_KEYWORD -# endif /* LDATA != 1 */ - /* Possibly useful for moving data out of default segment. - * Uncomment it if you want. Could also define FARDATA as - * const if your compiler supports it. (SJT) -# define FARDATA FAR - */ -# endif /* __WIN32__, __FLAT__, __CYGWIN__ */ -#endif /* __BORLANDC__ */ - - -/* Suggest testing for specific compiler first before testing for - * FAR. The Watcom compiler defines both __MEDIUM__ and M_I86MM, - * making reliance oncertain keywords suspect. (SJT) - */ - -/* MSC Medium model */ -#if defined(FAR) -# if defined(M_I86MM) -# define USE_FAR_KEYWORD -# define FARDATA FAR -# include -# endif -#endif - -/* SJT: default case */ -#ifndef FAR -# define FAR -#endif - -/* At this point FAR is always defined */ -#ifndef FARDATA -# define FARDATA -#endif - -/* Typedef for floating-point numbers that are converted - to fixed-point with a multiple of 100,000, e.g., int_gamma */ -typedef png_int_32 png_fixed_point; - -/* Add typedefs for pointers */ -typedef void FAR * png_voidp; -typedef png_byte FAR * png_bytep; -typedef png_uint_32 FAR * png_uint_32p; -typedef png_int_32 FAR * png_int_32p; -typedef png_uint_16 FAR * png_uint_16p; -typedef png_int_16 FAR * png_int_16p; -typedef PNG_CONST char FAR * png_const_charp; -typedef char FAR * png_charp; -typedef png_fixed_point FAR * png_fixed_point_p; - -#ifndef PNG_NO_STDIO -#if defined(_WIN32_WCE) -typedef HANDLE png_FILE_p; -#else -typedef FILE * png_FILE_p; -#endif -#endif - -#ifdef PNG_FLOATING_POINT_SUPPORTED -typedef double FAR * png_doublep; -#endif - -/* Pointers to pointers; i.e. arrays */ -typedef png_byte FAR * FAR * png_bytepp; -typedef png_uint_32 FAR * FAR * png_uint_32pp; -typedef png_int_32 FAR * FAR * png_int_32pp; -typedef png_uint_16 FAR * FAR * png_uint_16pp; -typedef png_int_16 FAR * FAR * png_int_16pp; -typedef PNG_CONST char FAR * FAR * png_const_charpp; -typedef char FAR * FAR * png_charpp; -typedef png_fixed_point FAR * FAR * png_fixed_point_pp; -#ifdef PNG_FLOATING_POINT_SUPPORTED -typedef double FAR * FAR * png_doublepp; -#endif - -/* Pointers to pointers to pointers; i.e., pointer to array */ -typedef char FAR * FAR * FAR * png_charppp; - -#if defined(PNG_1_0_X) || defined(PNG_1_2_X) -/* SPC - Is this stuff deprecated? */ -/* It'll be removed as of libpng-1.3.0 - GR-P */ -/* libpng typedefs for types in zlib. If zlib changes - * or another compression library is used, then change these. - * Eliminates need to change all the source files. - */ -typedef charf * png_zcharp; -typedef charf * FAR * png_zcharpp; -typedef z_stream FAR * png_zstreamp; -#endif /* (PNG_1_0_X) || defined(PNG_1_2_X) */ - -/* - * Define PNG_BUILD_DLL if the module being built is a Windows - * LIBPNG DLL. - * - * Define PNG_USE_DLL if you want to *link* to the Windows LIBPNG DLL. - * It is equivalent to Microsoft predefined macro _DLL that is - * automatically defined when you compile using the share - * version of the CRT (C Run-Time library) - * - * The cygwin mods make this behavior a little different: - * Define PNG_BUILD_DLL if you are building a dll for use with cygwin - * Define PNG_STATIC if you are building a static library for use with cygwin, - * -or- if you are building an application that you want to link to the - * static library. - * PNG_USE_DLL is defined by default (no user action needed) unless one of - * the other flags is defined. - */ - -#if !defined(PNG_DLL) && (defined(PNG_BUILD_DLL) || defined(PNG_USE_DLL)) -# define PNG_DLL -#endif -/* If CYGWIN, then disallow GLOBAL ARRAYS unless building a static lib. - * When building a static lib, default to no GLOBAL ARRAYS, but allow - * command-line override - */ -#if defined(__CYGWIN__) -# if !defined(PNG_STATIC) -# if defined(PNG_USE_GLOBAL_ARRAYS) -# undef PNG_USE_GLOBAL_ARRAYS -# endif -# if !defined(PNG_USE_LOCAL_ARRAYS) -# define PNG_USE_LOCAL_ARRAYS -# endif -# else -# if defined(PNG_USE_LOCAL_ARRAYS) || defined(PNG_NO_GLOBAL_ARRAYS) -# if defined(PNG_USE_GLOBAL_ARRAYS) -# undef PNG_USE_GLOBAL_ARRAYS -# endif -# endif -# endif -# if !defined(PNG_USE_LOCAL_ARRAYS) && !defined(PNG_USE_GLOBAL_ARRAYS) -# define PNG_USE_LOCAL_ARRAYS -# endif -#endif - -/* Do not use global arrays (helps with building DLL's) - * They are no longer used in libpng itself, since version 1.0.5c, - * but might be required for some pre-1.0.5c applications. - */ -#if !defined(PNG_USE_LOCAL_ARRAYS) && !defined(PNG_USE_GLOBAL_ARRAYS) -# if defined(PNG_NO_GLOBAL_ARRAYS) || \ - (defined(__GNUC__) && defined(PNG_DLL)) || defined(_MSC_VER) -# define PNG_USE_LOCAL_ARRAYS -# else -# define PNG_USE_GLOBAL_ARRAYS -# endif -#endif - -#if defined(__CYGWIN__) -# undef PNGAPI -# define PNGAPI __cdecl -# undef PNG_IMPEXP -# define PNG_IMPEXP -#endif - -/* If you define PNGAPI, e.g., with compiler option "-DPNGAPI=__stdcall", - * you may get warnings regarding the linkage of png_zalloc and png_zfree. - * Don't ignore those warnings; you must also reset the default calling - * convention in your compiler to match your PNGAPI, and you must build - * zlib and your applications the same way you build libpng. - */ - -#if defined(__MINGW32__) && !defined(PNG_MODULEDEF) -# ifndef PNG_NO_MODULEDEF -# define PNG_NO_MODULEDEF -# endif -#endif - -#if !defined(PNG_IMPEXP) && defined(PNG_BUILD_DLL) && !defined(PNG_NO_MODULEDEF) -# define PNG_IMPEXP -#endif - -#if defined(PNG_DLL) || defined(_DLL) || defined(__DLL__ ) || \ - (( defined(_Windows) || defined(_WINDOWS) || \ - defined(WIN32) || defined(_WIN32) || defined(__WIN32__) )) - -# ifndef PNGAPI -# if defined(__GNUC__) || (defined (_MSC_VER) && (_MSC_VER >= 800)) -# define PNGAPI __cdecl -# else -# define PNGAPI _cdecl -# endif -# endif - -# if !defined(PNG_IMPEXP) && (!defined(PNG_DLL) || \ - 0 /* WINCOMPILER_WITH_NO_SUPPORT_FOR_DECLIMPEXP */) -# define PNG_IMPEXP -# endif - -# if !defined(PNG_IMPEXP) - -# define PNG_EXPORT_TYPE1(type,symbol) PNG_IMPEXP type PNGAPI symbol -# define PNG_EXPORT_TYPE2(type,symbol) type PNG_IMPEXP PNGAPI symbol - - /* Borland/Microsoft */ -# if defined(_MSC_VER) || defined(__BORLANDC__) -# if (_MSC_VER >= 800) || (__BORLANDC__ >= 0x500) -# define PNG_EXPORT PNG_EXPORT_TYPE1 -# else -# define PNG_EXPORT PNG_EXPORT_TYPE2 -# if defined(PNG_BUILD_DLL) -# define PNG_IMPEXP __export -# else -# define PNG_IMPEXP /*__import */ /* doesn't exist AFAIK in - VC++ */ -# endif /* Exists in Borland C++ for - C++ classes (== huge) */ -# endif -# endif - -# if !defined(PNG_IMPEXP) -# if defined(PNG_BUILD_DLL) -# define PNG_IMPEXP __declspec(dllexport) -# else -# define PNG_IMPEXP __declspec(dllimport) -# endif -# endif -# endif /* PNG_IMPEXP */ -#else /* !(DLL || non-cygwin WINDOWS) */ -# if (defined(__IBMC__) || defined(__IBMCPP__)) && defined(__OS2__) -# ifndef PNGAPI -# define PNGAPI _System -# endif -# else -# if 0 /* ... other platforms, with other meanings */ -# endif -# endif -#endif - -#ifndef PNGAPI -# define PNGAPI -#endif -#ifndef PNG_IMPEXP -# define PNG_IMPEXP -#endif - -#ifdef PNG_BUILDSYMS -# ifndef PNG_EXPORT -# define PNG_EXPORT(type,symbol) PNG_FUNCTION_EXPORT symbol END -# endif -# ifdef PNG_USE_GLOBAL_ARRAYS -# ifndef PNG_EXPORT_VAR -# define PNG_EXPORT_VAR(type) PNG_DATA_EXPORT -# endif -# endif -#endif - -#ifndef PNG_EXPORT -# define PNG_EXPORT(type,symbol) PNG_IMPEXP type PNGAPI symbol -#endif - -#ifdef PNG_USE_GLOBAL_ARRAYS -# ifndef PNG_EXPORT_VAR -# define PNG_EXPORT_VAR(type) extern PNG_IMPEXP type -# endif -#endif - -/* User may want to use these so they are not in PNG_INTERNAL. Any library - * functions that are passed far data must be model independent. - */ - -#ifndef PNG_ABORT -# define PNG_ABORT() abort() -#endif - -#ifdef PNG_SETJMP_SUPPORTED -# define png_jmpbuf(png_ptr) ((png_ptr)->jmpbuf) -#else -# define png_jmpbuf(png_ptr) \ - (LIBPNG_WAS_COMPILED_WITH__PNG_SETJMP_NOT_SUPPORTED) -#endif - -#if defined(USE_FAR_KEYWORD) /* memory model independent fns */ -/* use this to make far-to-near assignments */ -# define CHECK 1 -# define NOCHECK 0 -# define CVT_PTR(ptr) (png_far_to_near(png_ptr,ptr,CHECK)) -# define CVT_PTR_NOCHECK(ptr) (png_far_to_near(png_ptr,ptr,NOCHECK)) -# define png_snprintf _fsnprintf /* Added to v 1.2.19 */ -# define png_strlen _fstrlen -# define png_memcmp _fmemcmp /* SJT: added */ -# define png_memcpy _fmemcpy -# define png_memset _fmemset -#else /* use the usual functions */ -# define CVT_PTR(ptr) (ptr) -# define CVT_PTR_NOCHECK(ptr) (ptr) -# ifndef PNG_NO_SNPRINTF -# ifdef _MSC_VER -# define png_snprintf _snprintf /* Added to v 1.2.19 */ -# define png_snprintf2 _snprintf -# define png_snprintf6 _snprintf -# else -# define png_snprintf snprintf /* Added to v 1.2.19 */ -# define png_snprintf2 snprintf -# define png_snprintf6 snprintf -# endif -# else - /* You don't have or don't want to use snprintf(). Caution: Using - * sprintf instead of snprintf exposes your application to accidental - * or malevolent buffer overflows. If you don't have snprintf() - * as a general rule you should provide one (you can get one from - * Portable OpenSSH). */ -# define png_snprintf(s1,n,fmt,x1) sprintf(s1,fmt,x1) -# define png_snprintf2(s1,n,fmt,x1,x2) sprintf(s1,fmt,x1,x2) -# define png_snprintf6(s1,n,fmt,x1,x2,x3,x4,x5,x6) \ - sprintf(s1,fmt,x1,x2,x3,x4,x5,x6) -# endif -# define png_strlen strlen -# define png_memcmp memcmp /* SJT: added */ -# define png_memcpy memcpy -# define png_memset memset -#endif -/* End of memory model independent support */ - -/* Just a little check that someone hasn't tried to define something - * contradictory. - */ -#if (PNG_ZBUF_SIZE > 65536L) && defined(PNG_MAX_MALLOC_64K) -# undef PNG_ZBUF_SIZE -# define PNG_ZBUF_SIZE 65536L -#endif - -/* Added at libpng-1.2.8 */ -#endif /* PNG_VERSION_INFO_ONLY */ - -#endif /* PNGCONF_H */ diff --git a/src/3rdParty/CxImage/png/pngerror.c b/src/3rdParty/CxImage/png/pngerror.c deleted file mode 100644 index b364fc00af..0000000000 --- a/src/3rdParty/CxImage/png/pngerror.c +++ /dev/null @@ -1,343 +0,0 @@ - -/* pngerror.c - stub functions for i/o and memory allocation - * - * Last changed in libpng 1.2.22 [October 13, 2007] - * For conditions of distribution and use, see copyright notice in png.h - * Copyright (c) 1998-2007 Glenn Randers-Pehrson - * (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger) - * (Version 0.88 Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.) - * - * This file provides a location for all error handling. Users who - * need special error handling are expected to write replacement functions - * and use png_set_error_fn() to use those functions. See the instructions - * at each function. - */ - -#define PNG_INTERNAL -#include "png.h" - -#if defined(PNG_READ_SUPPORTED) || defined(PNG_WRITE_SUPPORTED) -static void /* PRIVATE */ -png_default_error PNGARG((png_structp png_ptr, - png_const_charp error_message)); -#ifndef PNG_NO_WARNINGS -static void /* PRIVATE */ -png_default_warning PNGARG((png_structp png_ptr, - png_const_charp warning_message)); -#endif /* PNG_NO_WARNINGS */ - -/* This function is called whenever there is a fatal error. This function - * should not be changed. If there is a need to handle errors differently, - * you should supply a replacement error function and use png_set_error_fn() - * to replace the error function at run-time. - */ -#ifndef PNG_NO_ERROR_TEXT -void PNGAPI -png_error(png_structp png_ptr, png_const_charp error_message) -{ -#ifdef PNG_ERROR_NUMBERS_SUPPORTED - char msg[16]; - if (png_ptr != NULL) - { - if (png_ptr->flags& - (PNG_FLAG_STRIP_ERROR_NUMBERS|PNG_FLAG_STRIP_ERROR_TEXT)) - { - if (*error_message == '#') - { - int offset; - for (offset=1; offset<15; offset++) - if (*(error_message+offset) == ' ') - break; - if (png_ptr->flags&PNG_FLAG_STRIP_ERROR_TEXT) - { - int i; - for (i=0; iflags&PNG_FLAG_STRIP_ERROR_TEXT) - { - msg[0]='0'; - msg[1]='\0'; - error_message=msg; - } - } - } - } -#endif - if (png_ptr != NULL && png_ptr->error_fn != NULL) - (*(png_ptr->error_fn))(png_ptr, error_message); - - /* If the custom handler doesn't exist, or if it returns, - use the default handler, which will not return. */ - png_default_error(png_ptr, error_message); -} -#else -void PNGAPI -png_err(png_structp png_ptr) -{ - if (png_ptr != NULL && png_ptr->error_fn != NULL) - (*(png_ptr->error_fn))(png_ptr, '\0'); - - /* If the custom handler doesn't exist, or if it returns, - use the default handler, which will not return. */ - png_default_error(png_ptr, '\0'); -} -#endif /* PNG_NO_ERROR_TEXT */ - -#ifndef PNG_NO_WARNINGS -/* This function is called whenever there is a non-fatal error. This function - * should not be changed. If there is a need to handle warnings differently, - * you should supply a replacement warning function and use - * png_set_error_fn() to replace the warning function at run-time. - */ -void PNGAPI -png_warning(png_structp png_ptr, png_const_charp warning_message) -{ - int offset = 0; - if (png_ptr != NULL) - { -#ifdef PNG_ERROR_NUMBERS_SUPPORTED - if (png_ptr->flags& - (PNG_FLAG_STRIP_ERROR_NUMBERS|PNG_FLAG_STRIP_ERROR_TEXT)) -#endif - { - if (*warning_message == '#') - { - for (offset=1; offset<15; offset++) - if (*(warning_message+offset) == ' ') - break; - } - } - if (png_ptr != NULL && png_ptr->warning_fn != NULL) - (*(png_ptr->warning_fn))(png_ptr, warning_message+offset); - } - else - png_default_warning(png_ptr, warning_message+offset); -} -#endif /* PNG_NO_WARNINGS */ - - -/* These utilities are used internally to build an error message that relates - * to the current chunk. The chunk name comes from png_ptr->chunk_name, - * this is used to prefix the message. The message is limited in length - * to 63 bytes, the name characters are output as hex digits wrapped in [] - * if the character is invalid. - */ -#define isnonalpha(c) ((c) < 65 || (c) > 122 || ((c) > 90 && (c) < 97)) -static PNG_CONST char png_digit[16] = { - '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', - 'A', 'B', 'C', 'D', 'E', 'F' -}; - -#define PNG_MAX_ERROR_TEXT 64 - -#if !defined(PNG_NO_WARNINGS) || !defined(PNG_NO_ERROR_TEXT) -static void /* PRIVATE */ -png_format_buffer(png_structp png_ptr, png_charp buffer, png_const_charp - error_message) -{ - int iout = 0, iin = 0; - - while (iin < 4) - { - int c = png_ptr->chunk_name[iin++]; - if (isnonalpha(c)) - { - buffer[iout++] = '['; - buffer[iout++] = png_digit[(c & 0xf0) >> 4]; - buffer[iout++] = png_digit[c & 0x0f]; - buffer[iout++] = ']'; - } - else - { - buffer[iout++] = (png_byte)c; - } - } - - if (error_message == NULL) - buffer[iout] = '\0'; - else - { - buffer[iout++] = ':'; - buffer[iout++] = ' '; - png_memcpy(buffer+iout, error_message, PNG_MAX_ERROR_TEXT); - buffer[iout+PNG_MAX_ERROR_TEXT-1] = '\0'; - } -} - -#ifdef PNG_READ_SUPPORTED -void PNGAPI -png_chunk_error(png_structp png_ptr, png_const_charp error_message) -{ - char msg[18+PNG_MAX_ERROR_TEXT]; - if (png_ptr == NULL) - png_error(png_ptr, error_message); - else - { - png_format_buffer(png_ptr, msg, error_message); - png_error(png_ptr, msg); - } -} -#endif /* PNG_READ_SUPPORTED */ -#endif /* !defined(PNG_NO_WARNINGS) || !defined(PNG_NO_ERROR_TEXT) */ - -#ifndef PNG_NO_WARNINGS -void PNGAPI -png_chunk_warning(png_structp png_ptr, png_const_charp warning_message) -{ - char msg[18+PNG_MAX_ERROR_TEXT]; - if (png_ptr == NULL) - png_warning(png_ptr, warning_message); - else - { - png_format_buffer(png_ptr, msg, warning_message); - png_warning(png_ptr, msg); - } -} -#endif /* PNG_NO_WARNINGS */ - - -/* This is the default error handling function. Note that replacements for - * this function MUST NOT RETURN, or the program will likely crash. This - * function is used by default, or if the program supplies NULL for the - * error function pointer in png_set_error_fn(). - */ -static void /* PRIVATE */ -png_default_error(png_structp png_ptr, png_const_charp error_message) -{ -#ifndef PNG_NO_CONSOLE_IO -#ifdef PNG_ERROR_NUMBERS_SUPPORTED - if (*error_message == '#') - { - int offset; - char error_number[16]; - for (offset=0; offset<15; offset++) - { - error_number[offset] = *(error_message+offset+1); - if (*(error_message+offset) == ' ') - break; - } - if((offset > 1) && (offset < 15)) - { - error_number[offset-1]='\0'; - fprintf(stderr, "libpng error no. %s: %s\n", error_number, - error_message+offset); - } - else - fprintf(stderr, "libpng error: %s, offset=%d\n", error_message,offset); - } - else -#endif - fprintf(stderr, "libpng error: %s\n", error_message); -#endif - -#ifdef PNG_SETJMP_SUPPORTED - if (png_ptr) - { -# ifdef USE_FAR_KEYWORD - { - jmp_buf jmpbuf; - png_memcpy(jmpbuf, png_ptr->jmpbuf, png_sizeof(jmp_buf)); - longjmp(jmpbuf, 1); - } -# else - longjmp(png_ptr->jmpbuf, 1); -# endif - } -#else - PNG_ABORT(); -#endif -#ifdef PNG_NO_CONSOLE_IO - error_message = error_message; /* make compiler happy */ -#endif -} - -#ifndef PNG_NO_WARNINGS -/* This function is called when there is a warning, but the library thinks - * it can continue anyway. Replacement functions don't have to do anything - * here if you don't want them to. In the default configuration, png_ptr is - * not used, but it is passed in case it may be useful. - */ -static void /* PRIVATE */ -png_default_warning(png_structp png_ptr, png_const_charp warning_message) -{ -#ifndef PNG_NO_CONSOLE_IO -# ifdef PNG_ERROR_NUMBERS_SUPPORTED - if (*warning_message == '#') - { - int offset; - char warning_number[16]; - for (offset=0; offset<15; offset++) - { - warning_number[offset]=*(warning_message+offset+1); - if (*(warning_message+offset) == ' ') - break; - } - if((offset > 1) && (offset < 15)) - { - warning_number[offset-1]='\0'; - fprintf(stderr, "libpng warning no. %s: %s\n", warning_number, - warning_message+offset); - } - else - fprintf(stderr, "libpng warning: %s\n", warning_message); - } - else -# endif - fprintf(stderr, "libpng warning: %s\n", warning_message); -#else - warning_message = warning_message; /* make compiler happy */ -#endif - png_ptr = png_ptr; /* make compiler happy */ -} -#endif /* PNG_NO_WARNINGS */ - -/* This function is called when the application wants to use another method - * of handling errors and warnings. Note that the error function MUST NOT - * return to the calling routine or serious problems will occur. The return - * method used in the default routine calls longjmp(png_ptr->jmpbuf, 1) - */ -void PNGAPI -png_set_error_fn(png_structp png_ptr, png_voidp error_ptr, - png_error_ptr error_fn, png_error_ptr warning_fn) -{ - if (png_ptr == NULL) - return; - png_ptr->error_ptr = error_ptr; - png_ptr->error_fn = error_fn; - png_ptr->warning_fn = warning_fn; -} - - -/* This function returns a pointer to the error_ptr associated with the user - * functions. The application should free any memory associated with this - * pointer before png_write_destroy and png_read_destroy are called. - */ -png_voidp PNGAPI -png_get_error_ptr(png_structp png_ptr) -{ - if (png_ptr == NULL) - return NULL; - return ((png_voidp)png_ptr->error_ptr); -} - - -#ifdef PNG_ERROR_NUMBERS_SUPPORTED -void PNGAPI -png_set_strip_error_numbers(png_structp png_ptr, png_uint_32 strip_mode) -{ - if(png_ptr != NULL) - { - png_ptr->flags &= - ((~(PNG_FLAG_STRIP_ERROR_NUMBERS|PNG_FLAG_STRIP_ERROR_TEXT))&strip_mode); - } -} -#endif -#endif /* PNG_READ_SUPPORTED || PNG_WRITE_SUPPORTED */ diff --git a/src/3rdParty/CxImage/png/pnggccrd.c b/src/3rdParty/CxImage/png/pnggccrd.c deleted file mode 100644 index a7248d6ca6..0000000000 --- a/src/3rdParty/CxImage/png/pnggccrd.c +++ /dev/null @@ -1,101 +0,0 @@ -/* pnggccrd.c was removed from libpng-1.2.20. */ - -/* This code snippet is for use by configure's compilation test. */ - -#if defined(PNG_ASSEMBLER_CODE_SUPPORTED) && \ - defined(PNG_MMX_CODE_SUPPORTED) -int PNGAPI png_dummy_mmx_support(void); - -static int _mmx_supported = 2; // 0: no MMX; 1: MMX supported; 2: not tested - -int PNGAPI -png_dummy_mmx_support(void) __attribute__((noinline)); - -int PNGAPI -png_dummy_mmx_support(void) -{ - int result; -#if defined(PNG_MMX_CODE_SUPPORTED) // superfluous, but what the heck - __asm__ __volatile__ ( -#if defined(__x86_64__) - "pushq %%rbx \n\t" // rbx gets clobbered by CPUID instruction - "pushq %%rcx \n\t" // so does rcx... - "pushq %%rdx \n\t" // ...and rdx (but rcx & rdx safe on Linux) - "pushfq \n\t" // save Eflag to stack - "popq %%rax \n\t" // get Eflag from stack into rax - "movq %%rax, %%rcx \n\t" // make another copy of Eflag in rcx - "xorl $0x200000, %%eax \n\t" // toggle ID bit in Eflag (i.e., bit 21) - "pushq %%rax \n\t" // save modified Eflag back to stack - "popfq \n\t" // restore modified value to Eflag reg - "pushfq \n\t" // save Eflag to stack - "popq %%rax \n\t" // get Eflag from stack - "pushq %%rcx \n\t" // save original Eflag to stack - "popfq \n\t" // restore original Eflag -#else - "pushl %%ebx \n\t" // ebx gets clobbered by CPUID instruction - "pushl %%ecx \n\t" // so does ecx... - "pushl %%edx \n\t" // ...and edx (but ecx & edx safe on Linux) - "pushfl \n\t" // save Eflag to stack - "popl %%eax \n\t" // get Eflag from stack into eax - "movl %%eax, %%ecx \n\t" // make another copy of Eflag in ecx - "xorl $0x200000, %%eax \n\t" // toggle ID bit in Eflag (i.e., bit 21) - "pushl %%eax \n\t" // save modified Eflag back to stack - "popfl \n\t" // restore modified value to Eflag reg - "pushfl \n\t" // save Eflag to stack - "popl %%eax \n\t" // get Eflag from stack - "pushl %%ecx \n\t" // save original Eflag to stack - "popfl \n\t" // restore original Eflag -#endif - "xorl %%ecx, %%eax \n\t" // compare new Eflag with original Eflag - "jz 0f \n\t" // if same, CPUID instr. is not supported - - "xorl %%eax, %%eax \n\t" // set eax to zero -// ".byte 0x0f, 0xa2 \n\t" // CPUID instruction (two-byte opcode) - "cpuid \n\t" // get the CPU identification info - "cmpl $1, %%eax \n\t" // make sure eax return non-zero value - "jl 0f \n\t" // if eax is zero, MMX is not supported - - "xorl %%eax, %%eax \n\t" // set eax to zero and... - "incl %%eax \n\t" // ...increment eax to 1. This pair is - // faster than the instruction "mov eax, 1" - "cpuid \n\t" // get the CPU identification info again - "andl $0x800000, %%edx \n\t" // mask out all bits but MMX bit (23) - "cmpl $0, %%edx \n\t" // 0 = MMX not supported - "jz 0f \n\t" // non-zero = yes, MMX IS supported - - "movl $1, %%eax \n\t" // set return value to 1 - "jmp 1f \n\t" // DONE: have MMX support - - "0: \n\t" // .NOT_SUPPORTED: target label for jump instructions - "movl $0, %%eax \n\t" // set return value to 0 - "1: \n\t" // .RETURN: target label for jump instructions -#if defined(__x86_64__) - "popq %%rdx \n\t" // restore rdx - "popq %%rcx \n\t" // restore rcx - "popq %%rbx \n\t" // restore rbx -#else - "popl %%edx \n\t" // restore edx - "popl %%ecx \n\t" // restore ecx - "popl %%ebx \n\t" // restore ebx -#endif - -// "ret \n\t" // DONE: no MMX support - // (fall through to standard C "ret") - - : "=a" (result) // output list - - : // any variables used on input (none) - - // no clobber list -// , "%ebx", "%ecx", "%edx" // GRR: we handle these manually -// , "memory" // if write to a variable gcc thought was in a reg -// , "cc" // "condition codes" (flag bits) - ); - _mmx_supported = result; -#else - _mmx_supported = 0; -#endif /* PNG_MMX_CODE_SUPPORTED */ - - return _mmx_supported; -} -#endif diff --git a/src/3rdParty/CxImage/png/pngget.c b/src/3rdParty/CxImage/png/pngget.c deleted file mode 100644 index a0e90bb6a4..0000000000 --- a/src/3rdParty/CxImage/png/pngget.c +++ /dev/null @@ -1,901 +0,0 @@ - -/* pngget.c - retrieval of values from info struct - * - * Last changed in libpng 1.2.15 January 5, 2007 - * For conditions of distribution and use, see copyright notice in png.h - * Copyright (c) 1998-2007 Glenn Randers-Pehrson - * (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger) - * (Version 0.88 Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.) - */ - -#define PNG_INTERNAL -#include "png.h" - -#if defined(PNG_READ_SUPPORTED) || defined(PNG_WRITE_SUPPORTED) - -png_uint_32 PNGAPI -png_get_valid(png_structp png_ptr, png_infop info_ptr, png_uint_32 flag) -{ - if (png_ptr != NULL && info_ptr != NULL) - return(info_ptr->valid & flag); - else - return(0); -} - -png_uint_32 PNGAPI -png_get_rowbytes(png_structp png_ptr, png_infop info_ptr) -{ - if (png_ptr != NULL && info_ptr != NULL) - return(info_ptr->rowbytes); - else - return(0); -} - -#if defined(PNG_INFO_IMAGE_SUPPORTED) -png_bytepp PNGAPI -png_get_rows(png_structp png_ptr, png_infop info_ptr) -{ - if (png_ptr != NULL && info_ptr != NULL) - return(info_ptr->row_pointers); - else - return(0); -} -#endif - -#ifdef PNG_EASY_ACCESS_SUPPORTED -/* easy access to info, added in libpng-0.99 */ -png_uint_32 PNGAPI -png_get_image_width(png_structp png_ptr, png_infop info_ptr) -{ - if (png_ptr != NULL && info_ptr != NULL) - { - return info_ptr->width; - } - return (0); -} - -png_uint_32 PNGAPI -png_get_image_height(png_structp png_ptr, png_infop info_ptr) -{ - if (png_ptr != NULL && info_ptr != NULL) - { - return info_ptr->height; - } - return (0); -} - -png_byte PNGAPI -png_get_bit_depth(png_structp png_ptr, png_infop info_ptr) -{ - if (png_ptr != NULL && info_ptr != NULL) - { - return info_ptr->bit_depth; - } - return (0); -} - -png_byte PNGAPI -png_get_color_type(png_structp png_ptr, png_infop info_ptr) -{ - if (png_ptr != NULL && info_ptr != NULL) - { - return info_ptr->color_type; - } - return (0); -} - -png_byte PNGAPI -png_get_filter_type(png_structp png_ptr, png_infop info_ptr) -{ - if (png_ptr != NULL && info_ptr != NULL) - { - return info_ptr->filter_type; - } - return (0); -} - -png_byte PNGAPI -png_get_interlace_type(png_structp png_ptr, png_infop info_ptr) -{ - if (png_ptr != NULL && info_ptr != NULL) - { - return info_ptr->interlace_type; - } - return (0); -} - -png_byte PNGAPI -png_get_compression_type(png_structp png_ptr, png_infop info_ptr) -{ - if (png_ptr != NULL && info_ptr != NULL) - { - return info_ptr->compression_type; - } - return (0); -} - -png_uint_32 PNGAPI -png_get_x_pixels_per_meter(png_structp png_ptr, png_infop info_ptr) -{ - if (png_ptr != NULL && info_ptr != NULL) -#if defined(PNG_pHYs_SUPPORTED) - if (info_ptr->valid & PNG_INFO_pHYs) - { - png_debug1(1, "in %s retrieval function\n", "png_get_x_pixels_per_meter"); - if(info_ptr->phys_unit_type != PNG_RESOLUTION_METER) - return (0); - else return (info_ptr->x_pixels_per_unit); - } -#else - return (0); -#endif - return (0); -} - -png_uint_32 PNGAPI -png_get_y_pixels_per_meter(png_structp png_ptr, png_infop info_ptr) -{ - if (png_ptr != NULL && info_ptr != NULL) -#if defined(PNG_pHYs_SUPPORTED) - if (info_ptr->valid & PNG_INFO_pHYs) - { - png_debug1(1, "in %s retrieval function\n", "png_get_y_pixels_per_meter"); - if(info_ptr->phys_unit_type != PNG_RESOLUTION_METER) - return (0); - else return (info_ptr->y_pixels_per_unit); - } -#else - return (0); -#endif - return (0); -} - -png_uint_32 PNGAPI -png_get_pixels_per_meter(png_structp png_ptr, png_infop info_ptr) -{ - if (png_ptr != NULL && info_ptr != NULL) -#if defined(PNG_pHYs_SUPPORTED) - if (info_ptr->valid & PNG_INFO_pHYs) - { - png_debug1(1, "in %s retrieval function\n", "png_get_pixels_per_meter"); - if(info_ptr->phys_unit_type != PNG_RESOLUTION_METER || - info_ptr->x_pixels_per_unit != info_ptr->y_pixels_per_unit) - return (0); - else return (info_ptr->x_pixels_per_unit); - } -#else - return (0); -#endif - return (0); -} - -#ifdef PNG_FLOATING_POINT_SUPPORTED -float PNGAPI -png_get_pixel_aspect_ratio(png_structp png_ptr, png_infop info_ptr) - { - if (png_ptr != NULL && info_ptr != NULL) -#if defined(PNG_pHYs_SUPPORTED) - if (info_ptr->valid & PNG_INFO_pHYs) - { - png_debug1(1, "in %s retrieval function\n", "png_get_aspect_ratio"); - if (info_ptr->x_pixels_per_unit == 0) - return ((float)0.0); - else - return ((float)((float)info_ptr->y_pixels_per_unit - /(float)info_ptr->x_pixels_per_unit)); - } -#else - return (0.0); -#endif - return ((float)0.0); -} -#endif - -png_int_32 PNGAPI -png_get_x_offset_microns(png_structp png_ptr, png_infop info_ptr) -{ - if (png_ptr != NULL && info_ptr != NULL) -#if defined(PNG_oFFs_SUPPORTED) - if (info_ptr->valid & PNG_INFO_oFFs) - { - png_debug1(1, "in %s retrieval function\n", "png_get_x_offset_microns"); - if(info_ptr->offset_unit_type != PNG_OFFSET_MICROMETER) - return (0); - else return (info_ptr->x_offset); - } -#else - return (0); -#endif - return (0); -} - -png_int_32 PNGAPI -png_get_y_offset_microns(png_structp png_ptr, png_infop info_ptr) -{ - if (png_ptr != NULL && info_ptr != NULL) -#if defined(PNG_oFFs_SUPPORTED) - if (info_ptr->valid & PNG_INFO_oFFs) - { - png_debug1(1, "in %s retrieval function\n", "png_get_y_offset_microns"); - if(info_ptr->offset_unit_type != PNG_OFFSET_MICROMETER) - return (0); - else return (info_ptr->y_offset); - } -#else - return (0); -#endif - return (0); -} - -png_int_32 PNGAPI -png_get_x_offset_pixels(png_structp png_ptr, png_infop info_ptr) -{ - if (png_ptr != NULL && info_ptr != NULL) -#if defined(PNG_oFFs_SUPPORTED) - if (info_ptr->valid & PNG_INFO_oFFs) - { - png_debug1(1, "in %s retrieval function\n", "png_get_x_offset_microns"); - if(info_ptr->offset_unit_type != PNG_OFFSET_PIXEL) - return (0); - else return (info_ptr->x_offset); - } -#else - return (0); -#endif - return (0); -} - -png_int_32 PNGAPI -png_get_y_offset_pixels(png_structp png_ptr, png_infop info_ptr) -{ - if (png_ptr != NULL && info_ptr != NULL) -#if defined(PNG_oFFs_SUPPORTED) - if (info_ptr->valid & PNG_INFO_oFFs) - { - png_debug1(1, "in %s retrieval function\n", "png_get_y_offset_microns"); - if(info_ptr->offset_unit_type != PNG_OFFSET_PIXEL) - return (0); - else return (info_ptr->y_offset); - } -#else - return (0); -#endif - return (0); -} - -#if defined(PNG_INCH_CONVERSIONS) && defined(PNG_FLOATING_POINT_SUPPORTED) -png_uint_32 PNGAPI -png_get_pixels_per_inch(png_structp png_ptr, png_infop info_ptr) -{ - return ((png_uint_32)((float)png_get_pixels_per_meter(png_ptr, info_ptr) - *.0254 +.5)); -} - -png_uint_32 PNGAPI -png_get_x_pixels_per_inch(png_structp png_ptr, png_infop info_ptr) -{ - return ((png_uint_32)((float)png_get_x_pixels_per_meter(png_ptr, info_ptr) - *.0254 +.5)); -} - -png_uint_32 PNGAPI -png_get_y_pixels_per_inch(png_structp png_ptr, png_infop info_ptr) -{ - return ((png_uint_32)((float)png_get_y_pixels_per_meter(png_ptr, info_ptr) - *.0254 +.5)); -} - -float PNGAPI -png_get_x_offset_inches(png_structp png_ptr, png_infop info_ptr) -{ - return ((float)png_get_x_offset_microns(png_ptr, info_ptr) - *.00003937); -} - -float PNGAPI -png_get_y_offset_inches(png_structp png_ptr, png_infop info_ptr) -{ - return ((float)png_get_y_offset_microns(png_ptr, info_ptr) - *.00003937); -} - -#if defined(PNG_pHYs_SUPPORTED) -png_uint_32 PNGAPI -png_get_pHYs_dpi(png_structp png_ptr, png_infop info_ptr, - png_uint_32 *res_x, png_uint_32 *res_y, int *unit_type) -{ - png_uint_32 retval = 0; - - if (png_ptr != NULL && info_ptr != NULL && (info_ptr->valid & PNG_INFO_pHYs)) - { - png_debug1(1, "in %s retrieval function\n", "pHYs"); - if (res_x != NULL) - { - *res_x = info_ptr->x_pixels_per_unit; - retval |= PNG_INFO_pHYs; - } - if (res_y != NULL) - { - *res_y = info_ptr->y_pixels_per_unit; - retval |= PNG_INFO_pHYs; - } - if (unit_type != NULL) - { - *unit_type = (int)info_ptr->phys_unit_type; - retval |= PNG_INFO_pHYs; - if(*unit_type == 1) - { - if (res_x != NULL) *res_x = (png_uint_32)(*res_x * .0254 + .50); - if (res_y != NULL) *res_y = (png_uint_32)(*res_y * .0254 + .50); - } - } - } - return (retval); -} -#endif /* PNG_pHYs_SUPPORTED */ -#endif /* PNG_INCH_CONVERSIONS && PNG_FLOATING_POINT_SUPPORTED */ - -/* png_get_channels really belongs in here, too, but it's been around longer */ - -#endif /* PNG_EASY_ACCESS_SUPPORTED */ - -png_byte PNGAPI -png_get_channels(png_structp png_ptr, png_infop info_ptr) -{ - if (png_ptr != NULL && info_ptr != NULL) - return(info_ptr->channels); - else - return (0); -} - -png_bytep PNGAPI -png_get_signature(png_structp png_ptr, png_infop info_ptr) -{ - if (png_ptr != NULL && info_ptr != NULL) - return(info_ptr->signature); - else - return (NULL); -} - -#if defined(PNG_bKGD_SUPPORTED) -png_uint_32 PNGAPI -png_get_bKGD(png_structp png_ptr, png_infop info_ptr, - png_color_16p *background) -{ - if (png_ptr != NULL && info_ptr != NULL && (info_ptr->valid & PNG_INFO_bKGD) - && background != NULL) - { - png_debug1(1, "in %s retrieval function\n", "bKGD"); - *background = &(info_ptr->background); - return (PNG_INFO_bKGD); - } - return (0); -} -#endif - -#if defined(PNG_cHRM_SUPPORTED) -#ifdef PNG_FLOATING_POINT_SUPPORTED -png_uint_32 PNGAPI -png_get_cHRM(png_structp png_ptr, png_infop info_ptr, - double *white_x, double *white_y, double *red_x, double *red_y, - double *green_x, double *green_y, double *blue_x, double *blue_y) -{ - if (png_ptr != NULL && info_ptr != NULL && (info_ptr->valid & PNG_INFO_cHRM)) - { - png_debug1(1, "in %s retrieval function\n", "cHRM"); - if (white_x != NULL) - *white_x = (double)info_ptr->x_white; - if (white_y != NULL) - *white_y = (double)info_ptr->y_white; - if (red_x != NULL) - *red_x = (double)info_ptr->x_red; - if (red_y != NULL) - *red_y = (double)info_ptr->y_red; - if (green_x != NULL) - *green_x = (double)info_ptr->x_green; - if (green_y != NULL) - *green_y = (double)info_ptr->y_green; - if (blue_x != NULL) - *blue_x = (double)info_ptr->x_blue; - if (blue_y != NULL) - *blue_y = (double)info_ptr->y_blue; - return (PNG_INFO_cHRM); - } - return (0); -} -#endif -#ifdef PNG_FIXED_POINT_SUPPORTED -png_uint_32 PNGAPI -png_get_cHRM_fixed(png_structp png_ptr, png_infop info_ptr, - png_fixed_point *white_x, png_fixed_point *white_y, png_fixed_point *red_x, - png_fixed_point *red_y, png_fixed_point *green_x, png_fixed_point *green_y, - png_fixed_point *blue_x, png_fixed_point *blue_y) -{ - if (png_ptr != NULL && info_ptr != NULL && (info_ptr->valid & PNG_INFO_cHRM)) - { - png_debug1(1, "in %s retrieval function\n", "cHRM"); - if (white_x != NULL) - *white_x = info_ptr->int_x_white; - if (white_y != NULL) - *white_y = info_ptr->int_y_white; - if (red_x != NULL) - *red_x = info_ptr->int_x_red; - if (red_y != NULL) - *red_y = info_ptr->int_y_red; - if (green_x != NULL) - *green_x = info_ptr->int_x_green; - if (green_y != NULL) - *green_y = info_ptr->int_y_green; - if (blue_x != NULL) - *blue_x = info_ptr->int_x_blue; - if (blue_y != NULL) - *blue_y = info_ptr->int_y_blue; - return (PNG_INFO_cHRM); - } - return (0); -} -#endif -#endif - -#if defined(PNG_gAMA_SUPPORTED) -#ifdef PNG_FLOATING_POINT_SUPPORTED -png_uint_32 PNGAPI -png_get_gAMA(png_structp png_ptr, png_infop info_ptr, double *file_gamma) -{ - if (png_ptr != NULL && info_ptr != NULL && (info_ptr->valid & PNG_INFO_gAMA) - && file_gamma != NULL) - { - png_debug1(1, "in %s retrieval function\n", "gAMA"); - *file_gamma = (double)info_ptr->gamma; - return (PNG_INFO_gAMA); - } - return (0); -} -#endif -#ifdef PNG_FIXED_POINT_SUPPORTED -png_uint_32 PNGAPI -png_get_gAMA_fixed(png_structp png_ptr, png_infop info_ptr, - png_fixed_point *int_file_gamma) -{ - if (png_ptr != NULL && info_ptr != NULL && (info_ptr->valid & PNG_INFO_gAMA) - && int_file_gamma != NULL) - { - png_debug1(1, "in %s retrieval function\n", "gAMA"); - *int_file_gamma = info_ptr->int_gamma; - return (PNG_INFO_gAMA); - } - return (0); -} -#endif -#endif - -#if defined(PNG_sRGB_SUPPORTED) -png_uint_32 PNGAPI -png_get_sRGB(png_structp png_ptr, png_infop info_ptr, int *file_srgb_intent) -{ - if (png_ptr != NULL && info_ptr != NULL && (info_ptr->valid & PNG_INFO_sRGB) - && file_srgb_intent != NULL) - { - png_debug1(1, "in %s retrieval function\n", "sRGB"); - *file_srgb_intent = (int)info_ptr->srgb_intent; - return (PNG_INFO_sRGB); - } - return (0); -} -#endif - -#if defined(PNG_iCCP_SUPPORTED) -png_uint_32 PNGAPI -png_get_iCCP(png_structp png_ptr, png_infop info_ptr, - png_charpp name, int *compression_type, - png_charpp profile, png_uint_32 *proflen) -{ - if (png_ptr != NULL && info_ptr != NULL && (info_ptr->valid & PNG_INFO_iCCP) - && name != NULL && profile != NULL && proflen != NULL) - { - png_debug1(1, "in %s retrieval function\n", "iCCP"); - *name = info_ptr->iccp_name; - *profile = info_ptr->iccp_profile; - /* compression_type is a dummy so the API won't have to change - if we introduce multiple compression types later. */ - *proflen = (int)info_ptr->iccp_proflen; - *compression_type = (int)info_ptr->iccp_compression; - return (PNG_INFO_iCCP); - } - return (0); -} -#endif - -#if defined(PNG_sPLT_SUPPORTED) -png_uint_32 PNGAPI -png_get_sPLT(png_structp png_ptr, png_infop info_ptr, - png_sPLT_tpp spalettes) -{ - if (png_ptr != NULL && info_ptr != NULL && spalettes != NULL) - { - *spalettes = info_ptr->splt_palettes; - return ((png_uint_32)info_ptr->splt_palettes_num); - } - return (0); -} -#endif - -#if defined(PNG_hIST_SUPPORTED) -png_uint_32 PNGAPI -png_get_hIST(png_structp png_ptr, png_infop info_ptr, png_uint_16p *hist) -{ - if (png_ptr != NULL && info_ptr != NULL && (info_ptr->valid & PNG_INFO_hIST) - && hist != NULL) - { - png_debug1(1, "in %s retrieval function\n", "hIST"); - *hist = info_ptr->hist; - return (PNG_INFO_hIST); - } - return (0); -} -#endif - -png_uint_32 PNGAPI -png_get_IHDR(png_structp png_ptr, png_infop info_ptr, - png_uint_32 *width, png_uint_32 *height, int *bit_depth, - int *color_type, int *interlace_type, int *compression_type, - int *filter_type) - -{ - if (png_ptr != NULL && info_ptr != NULL && width != NULL && height != NULL && - bit_depth != NULL && color_type != NULL) - { - png_debug1(1, "in %s retrieval function\n", "IHDR"); - *width = info_ptr->width; - *height = info_ptr->height; - *bit_depth = info_ptr->bit_depth; - if (info_ptr->bit_depth < 1 || info_ptr->bit_depth > 16) - png_error(png_ptr, "Invalid bit depth"); - *color_type = info_ptr->color_type; - if (info_ptr->color_type > 6) - png_error(png_ptr, "Invalid color type"); - if (compression_type != NULL) - *compression_type = info_ptr->compression_type; - if (filter_type != NULL) - *filter_type = info_ptr->filter_type; - if (interlace_type != NULL) - *interlace_type = info_ptr->interlace_type; - - /* check for potential overflow of rowbytes */ - if (*width == 0 || *width > PNG_UINT_31_MAX) - png_error(png_ptr, "Invalid image width"); - if (*height == 0 || *height > PNG_UINT_31_MAX) - png_error(png_ptr, "Invalid image height"); - if (info_ptr->width > (PNG_UINT_32_MAX - >> 3) /* 8-byte RGBA pixels */ - - 64 /* bigrowbuf hack */ - - 1 /* filter byte */ - - 7*8 /* rounding of width to multiple of 8 pixels */ - - 8) /* extra max_pixel_depth pad */ - { - png_warning(png_ptr, - "Width too large for libpng to process image data."); - } - return (1); - } - return (0); -} - -#if defined(PNG_oFFs_SUPPORTED) -png_uint_32 PNGAPI -png_get_oFFs(png_structp png_ptr, png_infop info_ptr, - png_int_32 *offset_x, png_int_32 *offset_y, int *unit_type) -{ - if (png_ptr != NULL && info_ptr != NULL && (info_ptr->valid & PNG_INFO_oFFs) - && offset_x != NULL && offset_y != NULL && unit_type != NULL) - { - png_debug1(1, "in %s retrieval function\n", "oFFs"); - *offset_x = info_ptr->x_offset; - *offset_y = info_ptr->y_offset; - *unit_type = (int)info_ptr->offset_unit_type; - return (PNG_INFO_oFFs); - } - return (0); -} -#endif - -#if defined(PNG_pCAL_SUPPORTED) -png_uint_32 PNGAPI -png_get_pCAL(png_structp png_ptr, png_infop info_ptr, - png_charp *purpose, png_int_32 *X0, png_int_32 *X1, int *type, int *nparams, - png_charp *units, png_charpp *params) -{ - if (png_ptr != NULL && info_ptr != NULL && (info_ptr->valid & PNG_INFO_pCAL) - && purpose != NULL && X0 != NULL && X1 != NULL && type != NULL && - nparams != NULL && units != NULL && params != NULL) - { - png_debug1(1, "in %s retrieval function\n", "pCAL"); - *purpose = info_ptr->pcal_purpose; - *X0 = info_ptr->pcal_X0; - *X1 = info_ptr->pcal_X1; - *type = (int)info_ptr->pcal_type; - *nparams = (int)info_ptr->pcal_nparams; - *units = info_ptr->pcal_units; - *params = info_ptr->pcal_params; - return (PNG_INFO_pCAL); - } - return (0); -} -#endif - -#if defined(PNG_sCAL_SUPPORTED) -#ifdef PNG_FLOATING_POINT_SUPPORTED -png_uint_32 PNGAPI -png_get_sCAL(png_structp png_ptr, png_infop info_ptr, - int *unit, double *width, double *height) -{ - if (png_ptr != NULL && info_ptr != NULL && - (info_ptr->valid & PNG_INFO_sCAL)) - { - *unit = info_ptr->scal_unit; - *width = info_ptr->scal_pixel_width; - *height = info_ptr->scal_pixel_height; - return (PNG_INFO_sCAL); - } - return(0); -} -#else -#ifdef PNG_FIXED_POINT_SUPPORTED -png_uint_32 PNGAPI -png_get_sCAL_s(png_structp png_ptr, png_infop info_ptr, - int *unit, png_charpp width, png_charpp height) -{ - if (png_ptr != NULL && info_ptr != NULL && - (info_ptr->valid & PNG_INFO_sCAL)) - { - *unit = info_ptr->scal_unit; - *width = info_ptr->scal_s_width; - *height = info_ptr->scal_s_height; - return (PNG_INFO_sCAL); - } - return(0); -} -#endif -#endif -#endif - -#if defined(PNG_pHYs_SUPPORTED) -png_uint_32 PNGAPI -png_get_pHYs(png_structp png_ptr, png_infop info_ptr, - png_uint_32 *res_x, png_uint_32 *res_y, int *unit_type) -{ - png_uint_32 retval = 0; - - if (png_ptr != NULL && info_ptr != NULL && - (info_ptr->valid & PNG_INFO_pHYs)) - { - png_debug1(1, "in %s retrieval function\n", "pHYs"); - if (res_x != NULL) - { - *res_x = info_ptr->x_pixels_per_unit; - retval |= PNG_INFO_pHYs; - } - if (res_y != NULL) - { - *res_y = info_ptr->y_pixels_per_unit; - retval |= PNG_INFO_pHYs; - } - if (unit_type != NULL) - { - *unit_type = (int)info_ptr->phys_unit_type; - retval |= PNG_INFO_pHYs; - } - } - return (retval); -} -#endif - -png_uint_32 PNGAPI -png_get_PLTE(png_structp png_ptr, png_infop info_ptr, png_colorp *palette, - int *num_palette) -{ - if (png_ptr != NULL && info_ptr != NULL && (info_ptr->valid & PNG_INFO_PLTE) - && palette != NULL) - { - png_debug1(1, "in %s retrieval function\n", "PLTE"); - *palette = info_ptr->palette; - *num_palette = info_ptr->num_palette; - png_debug1(3, "num_palette = %d\n", *num_palette); - return (PNG_INFO_PLTE); - } - return (0); -} - -#if defined(PNG_sBIT_SUPPORTED) -png_uint_32 PNGAPI -png_get_sBIT(png_structp png_ptr, png_infop info_ptr, png_color_8p *sig_bit) -{ - if (png_ptr != NULL && info_ptr != NULL && (info_ptr->valid & PNG_INFO_sBIT) - && sig_bit != NULL) - { - png_debug1(1, "in %s retrieval function\n", "sBIT"); - *sig_bit = &(info_ptr->sig_bit); - return (PNG_INFO_sBIT); - } - return (0); -} -#endif - -#if defined(PNG_TEXT_SUPPORTED) -png_uint_32 PNGAPI -png_get_text(png_structp png_ptr, png_infop info_ptr, png_textp *text_ptr, - int *num_text) -{ - if (png_ptr != NULL && info_ptr != NULL && info_ptr->num_text > 0) - { - png_debug1(1, "in %s retrieval function\n", - (png_ptr->chunk_name[0] == '\0' ? "text" - : (png_const_charp)png_ptr->chunk_name)); - if (text_ptr != NULL) - *text_ptr = info_ptr->text; - if (num_text != NULL) - *num_text = info_ptr->num_text; - return ((png_uint_32)info_ptr->num_text); - } - if (num_text != NULL) - *num_text = 0; - return(0); -} -#endif - -#if defined(PNG_tIME_SUPPORTED) -png_uint_32 PNGAPI -png_get_tIME(png_structp png_ptr, png_infop info_ptr, png_timep *mod_time) -{ - if (png_ptr != NULL && info_ptr != NULL && (info_ptr->valid & PNG_INFO_tIME) - && mod_time != NULL) - { - png_debug1(1, "in %s retrieval function\n", "tIME"); - *mod_time = &(info_ptr->mod_time); - return (PNG_INFO_tIME); - } - return (0); -} -#endif - -#if defined(PNG_tRNS_SUPPORTED) -png_uint_32 PNGAPI -png_get_tRNS(png_structp png_ptr, png_infop info_ptr, - png_bytep *trans, int *num_trans, png_color_16p *trans_values) -{ - png_uint_32 retval = 0; - if (png_ptr != NULL && info_ptr != NULL && (info_ptr->valid & PNG_INFO_tRNS)) - { - png_debug1(1, "in %s retrieval function\n", "tRNS"); - if (info_ptr->color_type == PNG_COLOR_TYPE_PALETTE) - { - if (trans != NULL) - { - *trans = info_ptr->trans; - retval |= PNG_INFO_tRNS; - } - if (trans_values != NULL) - *trans_values = &(info_ptr->trans_values); - } - else /* if (info_ptr->color_type != PNG_COLOR_TYPE_PALETTE) */ - { - if (trans_values != NULL) - { - *trans_values = &(info_ptr->trans_values); - retval |= PNG_INFO_tRNS; - } - if(trans != NULL) - *trans = NULL; - } - if(num_trans != NULL) - { - *num_trans = info_ptr->num_trans; - retval |= PNG_INFO_tRNS; - } - } - return (retval); -} -#endif - -#if defined(PNG_UNKNOWN_CHUNKS_SUPPORTED) -png_uint_32 PNGAPI -png_get_unknown_chunks(png_structp png_ptr, png_infop info_ptr, - png_unknown_chunkpp unknowns) -{ - if (png_ptr != NULL && info_ptr != NULL && unknowns != NULL) - { - *unknowns = info_ptr->unknown_chunks; - return ((png_uint_32)info_ptr->unknown_chunks_num); - } - return (0); -} -#endif - -#if defined(PNG_READ_RGB_TO_GRAY_SUPPORTED) -png_byte PNGAPI -png_get_rgb_to_gray_status (png_structp png_ptr) -{ - return (png_byte)(png_ptr? png_ptr->rgb_to_gray_status : 0); -} -#endif - -#if defined(PNG_USER_CHUNKS_SUPPORTED) -png_voidp PNGAPI -png_get_user_chunk_ptr(png_structp png_ptr) -{ - return (png_ptr? png_ptr->user_chunk_ptr : NULL); -} -#endif - -#ifdef PNG_WRITE_SUPPORTED -png_uint_32 PNGAPI -png_get_compression_buffer_size(png_structp png_ptr) -{ - return (png_uint_32)(png_ptr? png_ptr->zbuf_size : 0L); -} -#endif - -#ifdef PNG_ASSEMBLER_CODE_SUPPORTED -#ifndef PNG_1_0_X -/* this function was added to libpng 1.2.0 and should exist by default */ -png_uint_32 PNGAPI -png_get_asm_flags (png_structp png_ptr) -{ - /* obsolete, to be removed from libpng-1.4.0 */ - return (png_ptr? 0L: 0L); -} - -/* this function was added to libpng 1.2.0 and should exist by default */ -png_uint_32 PNGAPI -png_get_asm_flagmask (int flag_select) -{ - /* obsolete, to be removed from libpng-1.4.0 */ - flag_select=flag_select; - return 0L; -} - - /* GRR: could add this: && defined(PNG_MMX_CODE_SUPPORTED) */ -/* this function was added to libpng 1.2.0 */ -png_uint_32 PNGAPI -png_get_mmx_flagmask (int flag_select, int *compilerID) -{ - /* obsolete, to be removed from libpng-1.4.0 */ - flag_select=flag_select; - *compilerID = -1; /* unknown (i.e., no asm/MMX code compiled) */ - return 0L; -} - -/* this function was added to libpng 1.2.0 */ -png_byte PNGAPI -png_get_mmx_bitdepth_threshold (png_structp png_ptr) -{ - /* obsolete, to be removed from libpng-1.4.0 */ - return (png_ptr? 0: 0); -} - -/* this function was added to libpng 1.2.0 */ -png_uint_32 PNGAPI -png_get_mmx_rowbytes_threshold (png_structp png_ptr) -{ - /* obsolete, to be removed from libpng-1.4.0 */ - return (png_ptr? 0L: 0L); -} -#endif /* ?PNG_1_0_X */ -#endif /* ?PNG_ASSEMBLER_CODE_SUPPORTED */ - -#ifdef PNG_SET_USER_LIMITS_SUPPORTED -/* these functions were added to libpng 1.2.6 */ -png_uint_32 PNGAPI -png_get_user_width_max (png_structp png_ptr) -{ - return (png_ptr? png_ptr->user_width_max : 0); -} -png_uint_32 PNGAPI -png_get_user_height_max (png_structp png_ptr) -{ - return (png_ptr? png_ptr->user_height_max : 0); -} -#endif /* ?PNG_SET_USER_LIMITS_SUPPORTED */ - - -#endif /* PNG_READ_SUPPORTED || PNG_WRITE_SUPPORTED */ diff --git a/src/3rdParty/CxImage/png/pngmem.c b/src/3rdParty/CxImage/png/pngmem.c deleted file mode 100644 index 248060f381..0000000000 --- a/src/3rdParty/CxImage/png/pngmem.c +++ /dev/null @@ -1,608 +0,0 @@ - -/* pngmem.c - stub functions for memory allocation - * - * Last changed in libpng 1.2.13 November 13, 2006 - * For conditions of distribution and use, see copyright notice in png.h - * Copyright (c) 1998-2006 Glenn Randers-Pehrson - * (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger) - * (Version 0.88 Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.) - * - * This file provides a location for all memory allocation. Users who - * need special memory handling are expected to supply replacement - * functions for png_malloc() and png_free(), and to use - * png_create_read_struct_2() and png_create_write_struct_2() to - * identify the replacement functions. - */ - -#define PNG_INTERNAL -#include "png.h" - -#if defined(PNG_READ_SUPPORTED) || defined(PNG_WRITE_SUPPORTED) - -/* Borland DOS special memory handler */ -#if defined(__TURBOC__) && !defined(_Windows) && !defined(__FLAT__) -/* if you change this, be sure to change the one in png.h also */ - -/* Allocate memory for a png_struct. The malloc and memset can be replaced - by a single call to calloc() if this is thought to improve performance. */ -png_voidp /* PRIVATE */ -png_create_struct(int type) -{ -#ifdef PNG_USER_MEM_SUPPORTED - return (png_create_struct_2(type, png_malloc_ptr_NULL, png_voidp_NULL)); -} - -/* Alternate version of png_create_struct, for use with user-defined malloc. */ -png_voidp /* PRIVATE */ -png_create_struct_2(int type, png_malloc_ptr malloc_fn, png_voidp mem_ptr) -{ -#endif /* PNG_USER_MEM_SUPPORTED */ - png_size_t size; - png_voidp struct_ptr; - - if (type == PNG_STRUCT_INFO) - size = png_sizeof(png_info); - else if (type == PNG_STRUCT_PNG) - size = png_sizeof(png_struct); - else - return (png_get_copyright(NULL)); - -#ifdef PNG_USER_MEM_SUPPORTED - if(malloc_fn != NULL) - { - png_struct dummy_struct; - png_structp png_ptr = &dummy_struct; - png_ptr->mem_ptr=mem_ptr; - struct_ptr = (*(malloc_fn))(png_ptr, (png_uint_32)size); - } - else -#endif /* PNG_USER_MEM_SUPPORTED */ - struct_ptr = (png_voidp)farmalloc(size); - if (struct_ptr != NULL) - png_memset(struct_ptr, 0, size); - return (struct_ptr); -} - -/* Free memory allocated by a png_create_struct() call */ -void /* PRIVATE */ -png_destroy_struct(png_voidp struct_ptr) -{ -#ifdef PNG_USER_MEM_SUPPORTED - png_destroy_struct_2(struct_ptr, png_free_ptr_NULL, png_voidp_NULL); -} - -/* Free memory allocated by a png_create_struct() call */ -void /* PRIVATE */ -png_destroy_struct_2(png_voidp struct_ptr, png_free_ptr free_fn, - png_voidp mem_ptr) -{ -#endif - if (struct_ptr != NULL) - { -#ifdef PNG_USER_MEM_SUPPORTED - if(free_fn != NULL) - { - png_struct dummy_struct; - png_structp png_ptr = &dummy_struct; - png_ptr->mem_ptr=mem_ptr; - (*(free_fn))(png_ptr, struct_ptr); - return; - } -#endif /* PNG_USER_MEM_SUPPORTED */ - farfree (struct_ptr); - } -} - -/* Allocate memory. For reasonable files, size should never exceed - * 64K. However, zlib may allocate more then 64K if you don't tell - * it not to. See zconf.h and png.h for more information. zlib does - * need to allocate exactly 64K, so whatever you call here must - * have the ability to do that. - * - * Borland seems to have a problem in DOS mode for exactly 64K. - * It gives you a segment with an offset of 8 (perhaps to store its - * memory stuff). zlib doesn't like this at all, so we have to - * detect and deal with it. This code should not be needed in - * Windows or OS/2 modes, and only in 16 bit mode. This code has - * been updated by Alexander Lehmann for version 0.89 to waste less - * memory. - * - * Note that we can't use png_size_t for the "size" declaration, - * since on some systems a png_size_t is a 16-bit quantity, and as a - * result, we would be truncating potentially larger memory requests - * (which should cause a fatal error) and introducing major problems. - */ - -png_voidp PNGAPI -png_malloc(png_structp png_ptr, png_uint_32 size) -{ - png_voidp ret; - - if (png_ptr == NULL || size == 0) - return (NULL); - -#ifdef PNG_USER_MEM_SUPPORTED - if(png_ptr->malloc_fn != NULL) - ret = ((png_voidp)(*(png_ptr->malloc_fn))(png_ptr, (png_size_t)size)); - else - ret = (png_malloc_default(png_ptr, size)); - if (ret == NULL && (png_ptr->flags&PNG_FLAG_MALLOC_NULL_MEM_OK) == 0) - png_error(png_ptr, "Out of memory!"); - return (ret); -} - -png_voidp PNGAPI -png_malloc_default(png_structp png_ptr, png_uint_32 size) -{ - png_voidp ret; -#endif /* PNG_USER_MEM_SUPPORTED */ - - if (png_ptr == NULL || size == 0) - return (NULL); - -#ifdef PNG_MAX_MALLOC_64K - if (size > (png_uint_32)65536L) - { - png_warning(png_ptr, "Cannot Allocate > 64K"); - ret = NULL; - } - else -#endif - - if (size != (size_t)size) - ret = NULL; - else if (size == (png_uint_32)65536L) - { - if (png_ptr->offset_table == NULL) - { - /* try to see if we need to do any of this fancy stuff */ - ret = farmalloc(size); - if (ret == NULL || ((png_size_t)ret & 0xffff)) - { - int num_blocks; - png_uint_32 total_size; - png_bytep table; - int i; - png_byte huge * hptr; - - if (ret != NULL) - { - farfree(ret); - ret = NULL; - } - - if(png_ptr->zlib_window_bits > 14) - num_blocks = (int)(1 << (png_ptr->zlib_window_bits - 14)); - else - num_blocks = 1; - if (png_ptr->zlib_mem_level >= 7) - num_blocks += (int)(1 << (png_ptr->zlib_mem_level - 7)); - else - num_blocks++; - - total_size = ((png_uint_32)65536L) * (png_uint_32)num_blocks+16; - - table = farmalloc(total_size); - - if (table == NULL) - { -#ifndef PNG_USER_MEM_SUPPORTED - if ((png_ptr->flags&PNG_FLAG_MALLOC_NULL_MEM_OK) == 0) - png_error(png_ptr, "Out Of Memory."); /* Note "O" and "M" */ - else - png_warning(png_ptr, "Out Of Memory."); -#endif - return (NULL); - } - - if ((png_size_t)table & 0xfff0) - { -#ifndef PNG_USER_MEM_SUPPORTED - if ((png_ptr->flags&PNG_FLAG_MALLOC_NULL_MEM_OK) == 0) - png_error(png_ptr, - "Farmalloc didn't return normalized pointer"); - else - png_warning(png_ptr, - "Farmalloc didn't return normalized pointer"); -#endif - return (NULL); - } - - png_ptr->offset_table = table; - png_ptr->offset_table_ptr = farmalloc(num_blocks * - png_sizeof (png_bytep)); - - if (png_ptr->offset_table_ptr == NULL) - { -#ifndef PNG_USER_MEM_SUPPORTED - if ((png_ptr->flags&PNG_FLAG_MALLOC_NULL_MEM_OK) == 0) - png_error(png_ptr, "Out Of memory."); /* Note "O" and "M" */ - else - png_warning(png_ptr, "Out Of memory."); -#endif - return (NULL); - } - - hptr = (png_byte huge *)table; - if ((png_size_t)hptr & 0xf) - { - hptr = (png_byte huge *)((long)(hptr) & 0xfffffff0L); - hptr = hptr + 16L; /* "hptr += 16L" fails on Turbo C++ 3.0 */ - } - for (i = 0; i < num_blocks; i++) - { - png_ptr->offset_table_ptr[i] = (png_bytep)hptr; - hptr = hptr + (png_uint_32)65536L; /* "+=" fails on TC++3.0 */ - } - - png_ptr->offset_table_number = num_blocks; - png_ptr->offset_table_count = 0; - png_ptr->offset_table_count_free = 0; - } - } - - if (png_ptr->offset_table_count >= png_ptr->offset_table_number) - { -#ifndef PNG_USER_MEM_SUPPORTED - if ((png_ptr->flags&PNG_FLAG_MALLOC_NULL_MEM_OK) == 0) - png_error(png_ptr, "Out of Memory."); /* Note "o" and "M" */ - else - png_warning(png_ptr, "Out of Memory."); -#endif - return (NULL); - } - - ret = png_ptr->offset_table_ptr[png_ptr->offset_table_count++]; - } - else - ret = farmalloc(size); - -#ifndef PNG_USER_MEM_SUPPORTED - if (ret == NULL) - { - if ((png_ptr->flags&PNG_FLAG_MALLOC_NULL_MEM_OK) == 0) - png_error(png_ptr, "Out of memory."); /* Note "o" and "m" */ - else - png_warning(png_ptr, "Out of memory."); /* Note "o" and "m" */ - } -#endif - - return (ret); -} - -/* free a pointer allocated by png_malloc(). In the default - configuration, png_ptr is not used, but is passed in case it - is needed. If ptr is NULL, return without taking any action. */ -void PNGAPI -png_free(png_structp png_ptr, png_voidp ptr) -{ - if (png_ptr == NULL || ptr == NULL) - return; - -#ifdef PNG_USER_MEM_SUPPORTED - if (png_ptr->free_fn != NULL) - { - (*(png_ptr->free_fn))(png_ptr, ptr); - return; - } - else png_free_default(png_ptr, ptr); -} - -void PNGAPI -png_free_default(png_structp png_ptr, png_voidp ptr) -{ -#endif /* PNG_USER_MEM_SUPPORTED */ - - if(png_ptr == NULL) return; - - if (png_ptr->offset_table != NULL) - { - int i; - - for (i = 0; i < png_ptr->offset_table_count; i++) - { - if (ptr == png_ptr->offset_table_ptr[i]) - { - ptr = NULL; - png_ptr->offset_table_count_free++; - break; - } - } - if (png_ptr->offset_table_count_free == png_ptr->offset_table_count) - { - farfree(png_ptr->offset_table); - farfree(png_ptr->offset_table_ptr); - png_ptr->offset_table = NULL; - png_ptr->offset_table_ptr = NULL; - } - } - - if (ptr != NULL) - { - farfree(ptr); - } -} - -#else /* Not the Borland DOS special memory handler */ - -/* Allocate memory for a png_struct or a png_info. The malloc and - memset can be replaced by a single call to calloc() if this is thought - to improve performance noticably. */ -png_voidp /* PRIVATE */ -png_create_struct(int type) -{ -#ifdef PNG_USER_MEM_SUPPORTED - return (png_create_struct_2(type, png_malloc_ptr_NULL, png_voidp_NULL)); -} - -/* Allocate memory for a png_struct or a png_info. The malloc and - memset can be replaced by a single call to calloc() if this is thought - to improve performance noticably. */ -png_voidp /* PRIVATE */ -png_create_struct_2(int type, png_malloc_ptr malloc_fn, png_voidp mem_ptr) -{ -#endif /* PNG_USER_MEM_SUPPORTED */ - png_size_t size; - png_voidp struct_ptr; - - if (type == PNG_STRUCT_INFO) - size = png_sizeof(png_info); - else if (type == PNG_STRUCT_PNG) - size = png_sizeof(png_struct); - else - return (NULL); - -#ifdef PNG_USER_MEM_SUPPORTED - if(malloc_fn != NULL) - { - png_struct dummy_struct; - png_structp png_ptr = &dummy_struct; - png_ptr->mem_ptr=mem_ptr; - struct_ptr = (*(malloc_fn))(png_ptr, size); - if (struct_ptr != NULL) - png_memset(struct_ptr, 0, size); - return (struct_ptr); - } -#endif /* PNG_USER_MEM_SUPPORTED */ - -#if defined(__TURBOC__) && !defined(__FLAT__) - struct_ptr = (png_voidp)farmalloc(size); -#else -# if defined(_MSC_VER) && defined(MAXSEG_64K) - struct_ptr = (png_voidp)halloc(size,1); -# else - struct_ptr = (png_voidp)malloc(size); -# endif -#endif - if (struct_ptr != NULL) - png_memset(struct_ptr, 0, size); - - return (struct_ptr); -} - - -/* Free memory allocated by a png_create_struct() call */ -void /* PRIVATE */ -png_destroy_struct(png_voidp struct_ptr) -{ -#ifdef PNG_USER_MEM_SUPPORTED - png_destroy_struct_2(struct_ptr, png_free_ptr_NULL, png_voidp_NULL); -} - -/* Free memory allocated by a png_create_struct() call */ -void /* PRIVATE */ -png_destroy_struct_2(png_voidp struct_ptr, png_free_ptr free_fn, - png_voidp mem_ptr) -{ -#endif /* PNG_USER_MEM_SUPPORTED */ - if (struct_ptr != NULL) - { -#ifdef PNG_USER_MEM_SUPPORTED - if(free_fn != NULL) - { - png_struct dummy_struct; - png_structp png_ptr = &dummy_struct; - png_ptr->mem_ptr=mem_ptr; - (*(free_fn))(png_ptr, struct_ptr); - return; - } -#endif /* PNG_USER_MEM_SUPPORTED */ -#if defined(__TURBOC__) && !defined(__FLAT__) - farfree(struct_ptr); -#else -# if defined(_MSC_VER) && defined(MAXSEG_64K) - hfree(struct_ptr); -# else - free(struct_ptr); -# endif -#endif - } -} - -/* Allocate memory. For reasonable files, size should never exceed - 64K. However, zlib may allocate more then 64K if you don't tell - it not to. See zconf.h and png.h for more information. zlib does - need to allocate exactly 64K, so whatever you call here must - have the ability to do that. */ - -png_voidp PNGAPI -png_malloc(png_structp png_ptr, png_uint_32 size) -{ - png_voidp ret; - -#ifdef PNG_USER_MEM_SUPPORTED - if (png_ptr == NULL || size == 0) - return (NULL); - - if(png_ptr->malloc_fn != NULL) - ret = ((png_voidp)(*(png_ptr->malloc_fn))(png_ptr, (png_size_t)size)); - else - ret = (png_malloc_default(png_ptr, size)); - if (ret == NULL && (png_ptr->flags&PNG_FLAG_MALLOC_NULL_MEM_OK) == 0) - png_error(png_ptr, "Out of Memory!"); - return (ret); -} - -png_voidp PNGAPI -png_malloc_default(png_structp png_ptr, png_uint_32 size) -{ - png_voidp ret; -#endif /* PNG_USER_MEM_SUPPORTED */ - - if (png_ptr == NULL || size == 0) - return (NULL); - -#ifdef PNG_MAX_MALLOC_64K - if (size > (png_uint_32)65536L) - { -#ifndef PNG_USER_MEM_SUPPORTED - if(png_ptr->flags&PNG_FLAG_MALLOC_NULL_MEM_OK) == 0) - png_error(png_ptr, "Cannot Allocate > 64K"); - else -#endif - return NULL; - } -#endif - - /* Check for overflow */ -#if defined(__TURBOC__) && !defined(__FLAT__) - if (size != (unsigned long)size) - ret = NULL; - else - ret = farmalloc(size); -#else -# if defined(_MSC_VER) && defined(MAXSEG_64K) - if (size != (unsigned long)size) - ret = NULL; - else - ret = halloc(size, 1); -# else - if (size != (size_t)size) - ret = NULL; - else - ret = malloc((size_t)size); -# endif -#endif - -#ifndef PNG_USER_MEM_SUPPORTED - if (ret == NULL && (png_ptr->flags&PNG_FLAG_MALLOC_NULL_MEM_OK) == 0) - png_error(png_ptr, "Out of Memory"); -#endif - - return (ret); -} - -/* Free a pointer allocated by png_malloc(). If ptr is NULL, return - without taking any action. */ -void PNGAPI -png_free(png_structp png_ptr, png_voidp ptr) -{ - if (png_ptr == NULL || ptr == NULL) - return; - -#ifdef PNG_USER_MEM_SUPPORTED - if (png_ptr->free_fn != NULL) - { - (*(png_ptr->free_fn))(png_ptr, ptr); - return; - } - else png_free_default(png_ptr, ptr); -} -void PNGAPI -png_free_default(png_structp png_ptr, png_voidp ptr) -{ - if (png_ptr == NULL || ptr == NULL) - return; - -#endif /* PNG_USER_MEM_SUPPORTED */ - -#if defined(__TURBOC__) && !defined(__FLAT__) - farfree(ptr); -#else -# if defined(_MSC_VER) && defined(MAXSEG_64K) - hfree(ptr); -# else - free(ptr); -# endif -#endif -} - -#endif /* Not Borland DOS special memory handler */ - -#if defined(PNG_1_0_X) -# define png_malloc_warn png_malloc -#else -/* This function was added at libpng version 1.2.3. The png_malloc_warn() - * function will set up png_malloc() to issue a png_warning and return NULL - * instead of issuing a png_error, if it fails to allocate the requested - * memory. - */ -png_voidp PNGAPI -png_malloc_warn(png_structp png_ptr, png_uint_32 size) -{ - png_voidp ptr; - png_uint_32 save_flags; - if(png_ptr == NULL) return (NULL); - - save_flags=png_ptr->flags; - png_ptr->flags|=PNG_FLAG_MALLOC_NULL_MEM_OK; - ptr = (png_voidp)png_malloc((png_structp)png_ptr, size); - png_ptr->flags=save_flags; - return(ptr); -} -#endif - -png_voidp PNGAPI -png_memcpy_check (png_structp png_ptr, png_voidp s1, png_voidp s2, - png_uint_32 length) -{ - png_size_t size; - - size = (png_size_t)length; - if ((png_uint_32)size != length) - png_error(png_ptr,"Overflow in png_memcpy_check."); - - return(png_memcpy (s1, s2, size)); -} - -png_voidp PNGAPI -png_memset_check (png_structp png_ptr, png_voidp s1, int value, - png_uint_32 length) -{ - png_size_t size; - - size = (png_size_t)length; - if ((png_uint_32)size != length) - png_error(png_ptr,"Overflow in png_memset_check."); - - return (png_memset (s1, value, size)); - -} - -#ifdef PNG_USER_MEM_SUPPORTED -/* This function is called when the application wants to use another method - * of allocating and freeing memory. - */ -void PNGAPI -png_set_mem_fn(png_structp png_ptr, png_voidp mem_ptr, png_malloc_ptr - malloc_fn, png_free_ptr free_fn) -{ - if(png_ptr != NULL) { - png_ptr->mem_ptr = mem_ptr; - png_ptr->malloc_fn = malloc_fn; - png_ptr->free_fn = free_fn; - } -} - -/* This function returns a pointer to the mem_ptr associated with the user - * functions. The application should free any memory associated with this - * pointer before png_write_destroy and png_read_destroy are called. - */ -png_voidp PNGAPI -png_get_mem_ptr(png_structp png_ptr) -{ - if(png_ptr == NULL) return (NULL); - return ((png_voidp)png_ptr->mem_ptr); -} -#endif /* PNG_USER_MEM_SUPPORTED */ -#endif /* PNG_READ_SUPPORTED || PNG_WRITE_SUPPORTED */ diff --git a/src/3rdParty/CxImage/png/pngpread.c b/src/3rdParty/CxImage/png/pngpread.c deleted file mode 100644 index 8f4b7d1795..0000000000 --- a/src/3rdParty/CxImage/png/pngpread.c +++ /dev/null @@ -1,1586 +0,0 @@ - -/* pngpread.c - read a png file in push mode - * - * Last changed in libpng 1.2.23 [November 6, 2007] - * For conditions of distribution and use, see copyright notice in png.h - * Copyright (c) 1998-2007 Glenn Randers-Pehrson - * (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger) - * (Version 0.88 Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.) - */ - -#define PNG_INTERNAL -#include "png.h" - -#ifdef PNG_PROGRESSIVE_READ_SUPPORTED - -/* push model modes */ -#define PNG_READ_SIG_MODE 0 -#define PNG_READ_CHUNK_MODE 1 -#define PNG_READ_IDAT_MODE 2 -#define PNG_SKIP_MODE 3 -#define PNG_READ_tEXt_MODE 4 -#define PNG_READ_zTXt_MODE 5 -#define PNG_READ_DONE_MODE 6 -#define PNG_READ_iTXt_MODE 7 -#define PNG_ERROR_MODE 8 - -void PNGAPI -png_process_data(png_structp png_ptr, png_infop info_ptr, - png_bytep buffer, png_size_t buffer_size) -{ - if(png_ptr == NULL) return; - png_push_restore_buffer(png_ptr, buffer, buffer_size); - - while (png_ptr->buffer_size) - { - png_process_some_data(png_ptr, info_ptr); - } -} - -/* What we do with the incoming data depends on what we were previously - * doing before we ran out of data... - */ -void /* PRIVATE */ -png_process_some_data(png_structp png_ptr, png_infop info_ptr) -{ - if(png_ptr == NULL) return; - switch (png_ptr->process_mode) - { - case PNG_READ_SIG_MODE: - { - png_push_read_sig(png_ptr, info_ptr); - break; - } - case PNG_READ_CHUNK_MODE: - { - png_push_read_chunk(png_ptr, info_ptr); - break; - } - case PNG_READ_IDAT_MODE: - { - png_push_read_IDAT(png_ptr); - break; - } -#if defined(PNG_READ_tEXt_SUPPORTED) - case PNG_READ_tEXt_MODE: - { - png_push_read_tEXt(png_ptr, info_ptr); - break; - } -#endif -#if defined(PNG_READ_zTXt_SUPPORTED) - case PNG_READ_zTXt_MODE: - { - png_push_read_zTXt(png_ptr, info_ptr); - break; - } -#endif -#if defined(PNG_READ_iTXt_SUPPORTED) - case PNG_READ_iTXt_MODE: - { - png_push_read_iTXt(png_ptr, info_ptr); - break; - } -#endif - case PNG_SKIP_MODE: - { - png_push_crc_finish(png_ptr); - break; - } - default: - { - png_ptr->buffer_size = 0; - break; - } - } -} - -/* Read any remaining signature bytes from the stream and compare them with - * the correct PNG signature. It is possible that this routine is called - * with bytes already read from the signature, either because they have been - * checked by the calling application, or because of multiple calls to this - * routine. - */ -void /* PRIVATE */ -png_push_read_sig(png_structp png_ptr, png_infop info_ptr) -{ - png_size_t num_checked = png_ptr->sig_bytes, - num_to_check = 8 - num_checked; - - if (png_ptr->buffer_size < num_to_check) - { - num_to_check = png_ptr->buffer_size; - } - - png_push_fill_buffer(png_ptr, &(info_ptr->signature[num_checked]), - num_to_check); - png_ptr->sig_bytes = (png_byte)(png_ptr->sig_bytes+num_to_check); - - if (png_sig_cmp(info_ptr->signature, num_checked, num_to_check)) - { - if (num_checked < 4 && - png_sig_cmp(info_ptr->signature, num_checked, num_to_check - 4)) - png_error(png_ptr, "Not a PNG file"); - else - png_error(png_ptr, "PNG file corrupted by ASCII conversion"); - } - else - { - if (png_ptr->sig_bytes >= 8) - { - png_ptr->process_mode = PNG_READ_CHUNK_MODE; - } - } -} - -void /* PRIVATE */ -png_push_read_chunk(png_structp png_ptr, png_infop info_ptr) -{ -#ifdef PNG_USE_LOCAL_ARRAYS - PNG_CONST PNG_IHDR; - PNG_CONST PNG_IDAT; - PNG_CONST PNG_IEND; - PNG_CONST PNG_PLTE; -#if defined(PNG_READ_bKGD_SUPPORTED) - PNG_CONST PNG_bKGD; -#endif -#if defined(PNG_READ_cHRM_SUPPORTED) - PNG_CONST PNG_cHRM; -#endif -#if defined(PNG_READ_gAMA_SUPPORTED) - PNG_CONST PNG_gAMA; -#endif -#if defined(PNG_READ_hIST_SUPPORTED) - PNG_CONST PNG_hIST; -#endif -#if defined(PNG_READ_iCCP_SUPPORTED) - PNG_CONST PNG_iCCP; -#endif -#if defined(PNG_READ_iTXt_SUPPORTED) - PNG_CONST PNG_iTXt; -#endif -#if defined(PNG_READ_oFFs_SUPPORTED) - PNG_CONST PNG_oFFs; -#endif -#if defined(PNG_READ_pCAL_SUPPORTED) - PNG_CONST PNG_pCAL; -#endif -#if defined(PNG_READ_pHYs_SUPPORTED) - PNG_CONST PNG_pHYs; -#endif -#if defined(PNG_READ_sBIT_SUPPORTED) - PNG_CONST PNG_sBIT; -#endif -#if defined(PNG_READ_sCAL_SUPPORTED) - PNG_CONST PNG_sCAL; -#endif -#if defined(PNG_READ_sRGB_SUPPORTED) - PNG_CONST PNG_sRGB; -#endif -#if defined(PNG_READ_sPLT_SUPPORTED) - PNG_CONST PNG_sPLT; -#endif -#if defined(PNG_READ_tEXt_SUPPORTED) - PNG_CONST PNG_tEXt; -#endif -#if defined(PNG_READ_tIME_SUPPORTED) - PNG_CONST PNG_tIME; -#endif -#if defined(PNG_READ_tRNS_SUPPORTED) - PNG_CONST PNG_tRNS; -#endif -#if defined(PNG_READ_zTXt_SUPPORTED) - PNG_CONST PNG_zTXt; -#endif -#endif /* PNG_USE_LOCAL_ARRAYS */ - /* First we make sure we have enough data for the 4 byte chunk name - * and the 4 byte chunk length before proceeding with decoding the - * chunk data. To fully decode each of these chunks, we also make - * sure we have enough data in the buffer for the 4 byte CRC at the - * end of every chunk (except IDAT, which is handled separately). - */ - if (!(png_ptr->mode & PNG_HAVE_CHUNK_HEADER)) - { - png_byte chunk_length[4]; - - if (png_ptr->buffer_size < 8) - { - png_push_save_buffer(png_ptr); - return; - } - - png_push_fill_buffer(png_ptr, chunk_length, 4); - png_ptr->push_length = png_get_uint_31(png_ptr,chunk_length); - png_reset_crc(png_ptr); - png_crc_read(png_ptr, png_ptr->chunk_name, 4); - png_ptr->mode |= PNG_HAVE_CHUNK_HEADER; - } - - if (!png_memcmp(png_ptr->chunk_name, png_IDAT, 4)) - if(png_ptr->mode & PNG_AFTER_IDAT) - png_ptr->mode |= PNG_HAVE_CHUNK_AFTER_IDAT; - - if (!png_memcmp(png_ptr->chunk_name, png_IHDR, 4)) - { - if (png_ptr->push_length + 4 > png_ptr->buffer_size) - { - png_push_save_buffer(png_ptr); - return; - } - png_handle_IHDR(png_ptr, info_ptr, png_ptr->push_length); - } - else if (!png_memcmp(png_ptr->chunk_name, png_IEND, 4)) - { - if (png_ptr->push_length + 4 > png_ptr->buffer_size) - { - png_push_save_buffer(png_ptr); - return; - } - png_handle_IEND(png_ptr, info_ptr, png_ptr->push_length); - - png_ptr->process_mode = PNG_READ_DONE_MODE; - png_push_have_end(png_ptr, info_ptr); - } -#ifdef PNG_HANDLE_AS_UNKNOWN_SUPPORTED - else if (png_handle_as_unknown(png_ptr, png_ptr->chunk_name)) - { - if (png_ptr->push_length + 4 > png_ptr->buffer_size) - { - png_push_save_buffer(png_ptr); - return; - } - if (!png_memcmp(png_ptr->chunk_name, png_IDAT, 4)) - png_ptr->mode |= PNG_HAVE_IDAT; - png_handle_unknown(png_ptr, info_ptr, png_ptr->push_length); - if (!png_memcmp(png_ptr->chunk_name, png_PLTE, 4)) - png_ptr->mode |= PNG_HAVE_PLTE; - else if (!png_memcmp(png_ptr->chunk_name, png_IDAT, 4)) - { - if (!(png_ptr->mode & PNG_HAVE_IHDR)) - png_error(png_ptr, "Missing IHDR before IDAT"); - else if (png_ptr->color_type == PNG_COLOR_TYPE_PALETTE && - !(png_ptr->mode & PNG_HAVE_PLTE)) - png_error(png_ptr, "Missing PLTE before IDAT"); - } - } -#endif - else if (!png_memcmp(png_ptr->chunk_name, png_PLTE, 4)) - { - if (png_ptr->push_length + 4 > png_ptr->buffer_size) - { - png_push_save_buffer(png_ptr); - return; - } - png_handle_PLTE(png_ptr, info_ptr, png_ptr->push_length); - } - else if (!png_memcmp(png_ptr->chunk_name, png_IDAT, 4)) - { - /* If we reach an IDAT chunk, this means we have read all of the - * header chunks, and we can start reading the image (or if this - * is called after the image has been read - we have an error). - */ - if (!(png_ptr->mode & PNG_HAVE_IHDR)) - png_error(png_ptr, "Missing IHDR before IDAT"); - else if (png_ptr->color_type == PNG_COLOR_TYPE_PALETTE && - !(png_ptr->mode & PNG_HAVE_PLTE)) - png_error(png_ptr, "Missing PLTE before IDAT"); - - if (png_ptr->mode & PNG_HAVE_IDAT) - { - if (!(png_ptr->mode & PNG_HAVE_CHUNK_AFTER_IDAT)) - if (png_ptr->push_length == 0) - return; - - if (png_ptr->mode & PNG_AFTER_IDAT) - png_error(png_ptr, "Too many IDAT's found"); - } - - png_ptr->idat_size = png_ptr->push_length; - png_ptr->mode |= PNG_HAVE_IDAT; - png_ptr->process_mode = PNG_READ_IDAT_MODE; - png_push_have_info(png_ptr, info_ptr); - png_ptr->zstream.avail_out = (uInt)png_ptr->irowbytes; - png_ptr->zstream.next_out = png_ptr->row_buf; - return; - } -#if defined(PNG_READ_gAMA_SUPPORTED) - else if (!png_memcmp(png_ptr->chunk_name, png_gAMA, 4)) - { - if (png_ptr->push_length + 4 > png_ptr->buffer_size) - { - png_push_save_buffer(png_ptr); - return; - } - png_handle_gAMA(png_ptr, info_ptr, png_ptr->push_length); - } -#endif -#if defined(PNG_READ_sBIT_SUPPORTED) - else if (!png_memcmp(png_ptr->chunk_name, png_sBIT, 4)) - { - if (png_ptr->push_length + 4 > png_ptr->buffer_size) - { - png_push_save_buffer(png_ptr); - return; - } - png_handle_sBIT(png_ptr, info_ptr, png_ptr->push_length); - } -#endif -#if defined(PNG_READ_cHRM_SUPPORTED) - else if (!png_memcmp(png_ptr->chunk_name, png_cHRM, 4)) - { - if (png_ptr->push_length + 4 > png_ptr->buffer_size) - { - png_push_save_buffer(png_ptr); - return; - } - png_handle_cHRM(png_ptr, info_ptr, png_ptr->push_length); - } -#endif -#if defined(PNG_READ_sRGB_SUPPORTED) - else if (!png_memcmp(png_ptr->chunk_name, png_sRGB, 4)) - { - if (png_ptr->push_length + 4 > png_ptr->buffer_size) - { - png_push_save_buffer(png_ptr); - return; - } - png_handle_sRGB(png_ptr, info_ptr, png_ptr->push_length); - } -#endif -#if defined(PNG_READ_iCCP_SUPPORTED) - else if (!png_memcmp(png_ptr->chunk_name, png_iCCP, 4)) - { - if (png_ptr->push_length + 4 > png_ptr->buffer_size) - { - png_push_save_buffer(png_ptr); - return; - } - png_handle_iCCP(png_ptr, info_ptr, png_ptr->push_length); - } -#endif -#if defined(PNG_READ_sPLT_SUPPORTED) - else if (!png_memcmp(png_ptr->chunk_name, png_sPLT, 4)) - { - if (png_ptr->push_length + 4 > png_ptr->buffer_size) - { - png_push_save_buffer(png_ptr); - return; - } - png_handle_sPLT(png_ptr, info_ptr, png_ptr->push_length); - } -#endif -#if defined(PNG_READ_tRNS_SUPPORTED) - else if (!png_memcmp(png_ptr->chunk_name, png_tRNS, 4)) - { - if (png_ptr->push_length + 4 > png_ptr->buffer_size) - { - png_push_save_buffer(png_ptr); - return; - } - png_handle_tRNS(png_ptr, info_ptr, png_ptr->push_length); - } -#endif -#if defined(PNG_READ_bKGD_SUPPORTED) - else if (!png_memcmp(png_ptr->chunk_name, png_bKGD, 4)) - { - if (png_ptr->push_length + 4 > png_ptr->buffer_size) - { - png_push_save_buffer(png_ptr); - return; - } - png_handle_bKGD(png_ptr, info_ptr, png_ptr->push_length); - } -#endif -#if defined(PNG_READ_hIST_SUPPORTED) - else if (!png_memcmp(png_ptr->chunk_name, png_hIST, 4)) - { - if (png_ptr->push_length + 4 > png_ptr->buffer_size) - { - png_push_save_buffer(png_ptr); - return; - } - png_handle_hIST(png_ptr, info_ptr, png_ptr->push_length); - } -#endif -#if defined(PNG_READ_pHYs_SUPPORTED) - else if (!png_memcmp(png_ptr->chunk_name, png_pHYs, 4)) - { - if (png_ptr->push_length + 4 > png_ptr->buffer_size) - { - png_push_save_buffer(png_ptr); - return; - } - png_handle_pHYs(png_ptr, info_ptr, png_ptr->push_length); - } -#endif -#if defined(PNG_READ_oFFs_SUPPORTED) - else if (!png_memcmp(png_ptr->chunk_name, png_oFFs, 4)) - { - if (png_ptr->push_length + 4 > png_ptr->buffer_size) - { - png_push_save_buffer(png_ptr); - return; - } - png_handle_oFFs(png_ptr, info_ptr, png_ptr->push_length); - } -#endif -#if defined(PNG_READ_pCAL_SUPPORTED) - else if (!png_memcmp(png_ptr->chunk_name, png_pCAL, 4)) - { - if (png_ptr->push_length + 4 > png_ptr->buffer_size) - { - png_push_save_buffer(png_ptr); - return; - } - png_handle_pCAL(png_ptr, info_ptr, png_ptr->push_length); - } -#endif -#if defined(PNG_READ_sCAL_SUPPORTED) - else if (!png_memcmp(png_ptr->chunk_name, png_sCAL, 4)) - { - if (png_ptr->push_length + 4 > png_ptr->buffer_size) - { - png_push_save_buffer(png_ptr); - return; - } - png_handle_sCAL(png_ptr, info_ptr, png_ptr->push_length); - } -#endif -#if defined(PNG_READ_tIME_SUPPORTED) - else if (!png_memcmp(png_ptr->chunk_name, png_tIME, 4)) - { - if (png_ptr->push_length + 4 > png_ptr->buffer_size) - { - png_push_save_buffer(png_ptr); - return; - } - png_handle_tIME(png_ptr, info_ptr, png_ptr->push_length); - } -#endif -#if defined(PNG_READ_tEXt_SUPPORTED) - else if (!png_memcmp(png_ptr->chunk_name, png_tEXt, 4)) - { - if (png_ptr->push_length + 4 > png_ptr->buffer_size) - { - png_push_save_buffer(png_ptr); - return; - } - png_push_handle_tEXt(png_ptr, info_ptr, png_ptr->push_length); - } -#endif -#if defined(PNG_READ_zTXt_SUPPORTED) - else if (!png_memcmp(png_ptr->chunk_name, png_zTXt, 4)) - { - if (png_ptr->push_length + 4 > png_ptr->buffer_size) - { - png_push_save_buffer(png_ptr); - return; - } - png_push_handle_zTXt(png_ptr, info_ptr, png_ptr->push_length); - } -#endif -#if defined(PNG_READ_iTXt_SUPPORTED) - else if (!png_memcmp(png_ptr->chunk_name, png_iTXt, 4)) - { - if (png_ptr->push_length + 4 > png_ptr->buffer_size) - { - png_push_save_buffer(png_ptr); - return; - } - png_push_handle_iTXt(png_ptr, info_ptr, png_ptr->push_length); - } -#endif - else - { - if (png_ptr->push_length + 4 > png_ptr->buffer_size) - { - png_push_save_buffer(png_ptr); - return; - } - png_push_handle_unknown(png_ptr, info_ptr, png_ptr->push_length); - } - - png_ptr->mode &= ~PNG_HAVE_CHUNK_HEADER; -} - -void /* PRIVATE */ -png_push_crc_skip(png_structp png_ptr, png_uint_32 skip) -{ - png_ptr->process_mode = PNG_SKIP_MODE; - png_ptr->skip_length = skip; -} - -void /* PRIVATE */ -png_push_crc_finish(png_structp png_ptr) -{ - if (png_ptr->skip_length && png_ptr->save_buffer_size) - { - png_size_t save_size; - - if (png_ptr->skip_length < (png_uint_32)png_ptr->save_buffer_size) - save_size = (png_size_t)png_ptr->skip_length; - else - save_size = png_ptr->save_buffer_size; - - png_calculate_crc(png_ptr, png_ptr->save_buffer_ptr, save_size); - - png_ptr->skip_length -= save_size; - png_ptr->buffer_size -= save_size; - png_ptr->save_buffer_size -= save_size; - png_ptr->save_buffer_ptr += save_size; - } - if (png_ptr->skip_length && png_ptr->current_buffer_size) - { - png_size_t save_size; - - if (png_ptr->skip_length < (png_uint_32)png_ptr->current_buffer_size) - save_size = (png_size_t)png_ptr->skip_length; - else - save_size = png_ptr->current_buffer_size; - - png_calculate_crc(png_ptr, png_ptr->current_buffer_ptr, save_size); - - png_ptr->skip_length -= save_size; - png_ptr->buffer_size -= save_size; - png_ptr->current_buffer_size -= save_size; - png_ptr->current_buffer_ptr += save_size; - } - if (!png_ptr->skip_length) - { - if (png_ptr->buffer_size < 4) - { - png_push_save_buffer(png_ptr); - return; - } - - png_crc_finish(png_ptr, 0); - png_ptr->process_mode = PNG_READ_CHUNK_MODE; - } -} - -void PNGAPI -png_push_fill_buffer(png_structp png_ptr, png_bytep buffer, png_size_t length) -{ - png_bytep ptr; - - if(png_ptr == NULL) return; - ptr = buffer; - if (png_ptr->save_buffer_size) - { - png_size_t save_size; - - if (length < png_ptr->save_buffer_size) - save_size = length; - else - save_size = png_ptr->save_buffer_size; - - png_memcpy(ptr, png_ptr->save_buffer_ptr, save_size); - length -= save_size; - ptr += save_size; - png_ptr->buffer_size -= save_size; - png_ptr->save_buffer_size -= save_size; - png_ptr->save_buffer_ptr += save_size; - } - if (length && png_ptr->current_buffer_size) - { - png_size_t save_size; - - if (length < png_ptr->current_buffer_size) - save_size = length; - else - save_size = png_ptr->current_buffer_size; - - png_memcpy(ptr, png_ptr->current_buffer_ptr, save_size); - png_ptr->buffer_size -= save_size; - png_ptr->current_buffer_size -= save_size; - png_ptr->current_buffer_ptr += save_size; - } -} - -void /* PRIVATE */ -png_push_save_buffer(png_structp png_ptr) -{ - if (png_ptr->save_buffer_size) - { - if (png_ptr->save_buffer_ptr != png_ptr->save_buffer) - { - png_size_t i,istop; - png_bytep sp; - png_bytep dp; - - istop = png_ptr->save_buffer_size; - for (i = 0, sp = png_ptr->save_buffer_ptr, dp = png_ptr->save_buffer; - i < istop; i++, sp++, dp++) - { - *dp = *sp; - } - } - } - if (png_ptr->save_buffer_size + png_ptr->current_buffer_size > - png_ptr->save_buffer_max) - { - png_size_t new_max; - png_bytep old_buffer; - - if (png_ptr->save_buffer_size > PNG_SIZE_MAX - - (png_ptr->current_buffer_size + 256)) - { - png_error(png_ptr, "Potential overflow of save_buffer"); - } - new_max = png_ptr->save_buffer_size + png_ptr->current_buffer_size + 256; - old_buffer = png_ptr->save_buffer; - png_ptr->save_buffer = (png_bytep)png_malloc(png_ptr, - (png_uint_32)new_max); - png_memcpy(png_ptr->save_buffer, old_buffer, png_ptr->save_buffer_size); - png_free(png_ptr, old_buffer); - png_ptr->save_buffer_max = new_max; - } - if (png_ptr->current_buffer_size) - { - png_memcpy(png_ptr->save_buffer + png_ptr->save_buffer_size, - png_ptr->current_buffer_ptr, png_ptr->current_buffer_size); - png_ptr->save_buffer_size += png_ptr->current_buffer_size; - png_ptr->current_buffer_size = 0; - } - png_ptr->save_buffer_ptr = png_ptr->save_buffer; - png_ptr->buffer_size = 0; -} - -void /* PRIVATE */ -png_push_restore_buffer(png_structp png_ptr, png_bytep buffer, - png_size_t buffer_length) -{ - png_ptr->current_buffer = buffer; - png_ptr->current_buffer_size = buffer_length; - png_ptr->buffer_size = buffer_length + png_ptr->save_buffer_size; - png_ptr->current_buffer_ptr = png_ptr->current_buffer; -} - -void /* PRIVATE */ -png_push_read_IDAT(png_structp png_ptr) -{ -#ifdef PNG_USE_LOCAL_ARRAYS - PNG_CONST PNG_IDAT; -#endif - if (!(png_ptr->mode & PNG_HAVE_CHUNK_HEADER)) - { - png_byte chunk_length[4]; - - if (png_ptr->buffer_size < 8) - { - png_push_save_buffer(png_ptr); - return; - } - - png_push_fill_buffer(png_ptr, chunk_length, 4); - png_ptr->push_length = png_get_uint_31(png_ptr,chunk_length); - png_reset_crc(png_ptr); - png_crc_read(png_ptr, png_ptr->chunk_name, 4); - png_ptr->mode |= PNG_HAVE_CHUNK_HEADER; - - if (png_memcmp(png_ptr->chunk_name, png_IDAT, 4)) - { - png_ptr->process_mode = PNG_READ_CHUNK_MODE; - if (!(png_ptr->flags & PNG_FLAG_ZLIB_FINISHED)) - png_error(png_ptr, "Not enough compressed data"); - return; - } - - png_ptr->idat_size = png_ptr->push_length; - } - if (png_ptr->idat_size && png_ptr->save_buffer_size) - { - png_size_t save_size; - - if (png_ptr->idat_size < (png_uint_32)png_ptr->save_buffer_size) - { - save_size = (png_size_t)png_ptr->idat_size; - /* check for overflow */ - if((png_uint_32)save_size != png_ptr->idat_size) - png_error(png_ptr, "save_size overflowed in pngpread"); - } - else - save_size = png_ptr->save_buffer_size; - - png_calculate_crc(png_ptr, png_ptr->save_buffer_ptr, save_size); - if (!(png_ptr->flags & PNG_FLAG_ZLIB_FINISHED)) - png_process_IDAT_data(png_ptr, png_ptr->save_buffer_ptr, save_size); - png_ptr->idat_size -= save_size; - png_ptr->buffer_size -= save_size; - png_ptr->save_buffer_size -= save_size; - png_ptr->save_buffer_ptr += save_size; - } - if (png_ptr->idat_size && png_ptr->current_buffer_size) - { - png_size_t save_size; - - if (png_ptr->idat_size < (png_uint_32)png_ptr->current_buffer_size) - { - save_size = (png_size_t)png_ptr->idat_size; - /* check for overflow */ - if((png_uint_32)save_size != png_ptr->idat_size) - png_error(png_ptr, "save_size overflowed in pngpread"); - } - else - save_size = png_ptr->current_buffer_size; - - png_calculate_crc(png_ptr, png_ptr->current_buffer_ptr, save_size); - if (!(png_ptr->flags & PNG_FLAG_ZLIB_FINISHED)) - png_process_IDAT_data(png_ptr, png_ptr->current_buffer_ptr, save_size); - - png_ptr->idat_size -= save_size; - png_ptr->buffer_size -= save_size; - png_ptr->current_buffer_size -= save_size; - png_ptr->current_buffer_ptr += save_size; - } - if (!png_ptr->idat_size) - { - if (png_ptr->buffer_size < 4) - { - png_push_save_buffer(png_ptr); - return; - } - - png_crc_finish(png_ptr, 0); - png_ptr->mode &= ~PNG_HAVE_CHUNK_HEADER; - png_ptr->mode |= PNG_AFTER_IDAT; - } -} - -void /* PRIVATE */ -png_process_IDAT_data(png_structp png_ptr, png_bytep buffer, - png_size_t buffer_length) -{ - int ret; - - if ((png_ptr->flags & PNG_FLAG_ZLIB_FINISHED) && buffer_length) - png_error(png_ptr, "Extra compression data"); - - png_ptr->zstream.next_in = buffer; - png_ptr->zstream.avail_in = (uInt)buffer_length; - for(;;) - { - ret = inflate(&png_ptr->zstream, Z_PARTIAL_FLUSH); - if (ret != Z_OK) - { - if (ret == Z_STREAM_END) - { - if (png_ptr->zstream.avail_in) - png_error(png_ptr, "Extra compressed data"); - if (!(png_ptr->zstream.avail_out)) - { - png_push_process_row(png_ptr); - } - - png_ptr->mode |= PNG_AFTER_IDAT; - png_ptr->flags |= PNG_FLAG_ZLIB_FINISHED; - break; - } - else if (ret == Z_BUF_ERROR) - break; - else - png_error(png_ptr, "Decompression Error"); - } - if (!(png_ptr->zstream.avail_out)) - { - if (( -#if defined(PNG_READ_INTERLACING_SUPPORTED) - png_ptr->interlaced && png_ptr->pass > 6) || - (!png_ptr->interlaced && -#endif - png_ptr->row_number == png_ptr->num_rows)) - { - if (png_ptr->zstream.avail_in) - png_warning(png_ptr, "Too much data in IDAT chunks"); - png_ptr->flags |= PNG_FLAG_ZLIB_FINISHED; - break; - } - png_push_process_row(png_ptr); - png_ptr->zstream.avail_out = (uInt)png_ptr->irowbytes; - png_ptr->zstream.next_out = png_ptr->row_buf; - } - else - break; - } -} - -void /* PRIVATE */ -png_push_process_row(png_structp png_ptr) -{ - png_ptr->row_info.color_type = png_ptr->color_type; - png_ptr->row_info.width = png_ptr->iwidth; - png_ptr->row_info.channels = png_ptr->channels; - png_ptr->row_info.bit_depth = png_ptr->bit_depth; - png_ptr->row_info.pixel_depth = png_ptr->pixel_depth; - - png_ptr->row_info.rowbytes = PNG_ROWBYTES(png_ptr->row_info.pixel_depth, - png_ptr->row_info.width); - - png_read_filter_row(png_ptr, &(png_ptr->row_info), - png_ptr->row_buf + 1, png_ptr->prev_row + 1, - (int)(png_ptr->row_buf[0])); - - png_memcpy_check(png_ptr, png_ptr->prev_row, png_ptr->row_buf, - png_ptr->rowbytes + 1); - - if (png_ptr->transformations || (png_ptr->flags&PNG_FLAG_STRIP_ALPHA)) - png_do_read_transformations(png_ptr); - -#if defined(PNG_READ_INTERLACING_SUPPORTED) - /* blow up interlaced rows to full size */ - if (png_ptr->interlaced && (png_ptr->transformations & PNG_INTERLACE)) - { - if (png_ptr->pass < 6) -/* old interface (pre-1.0.9): - png_do_read_interlace(&(png_ptr->row_info), - png_ptr->row_buf + 1, png_ptr->pass, png_ptr->transformations); - */ - png_do_read_interlace(png_ptr); - - switch (png_ptr->pass) - { - case 0: - { - int i; - for (i = 0; i < 8 && png_ptr->pass == 0; i++) - { - png_push_have_row(png_ptr, png_ptr->row_buf + 1); - png_read_push_finish_row(png_ptr); /* updates png_ptr->pass */ - } - if (png_ptr->pass == 2) /* pass 1 might be empty */ - { - for (i = 0; i < 4 && png_ptr->pass == 2; i++) - { - png_push_have_row(png_ptr, png_bytep_NULL); - png_read_push_finish_row(png_ptr); - } - } - if (png_ptr->pass == 4 && png_ptr->height <= 4) - { - for (i = 0; i < 2 && png_ptr->pass == 4; i++) - { - png_push_have_row(png_ptr, png_bytep_NULL); - png_read_push_finish_row(png_ptr); - } - } - if (png_ptr->pass == 6 && png_ptr->height <= 4) - { - png_push_have_row(png_ptr, png_bytep_NULL); - png_read_push_finish_row(png_ptr); - } - break; - } - case 1: - { - int i; - for (i = 0; i < 8 && png_ptr->pass == 1; i++) - { - png_push_have_row(png_ptr, png_ptr->row_buf + 1); - png_read_push_finish_row(png_ptr); - } - if (png_ptr->pass == 2) /* skip top 4 generated rows */ - { - for (i = 0; i < 4 && png_ptr->pass == 2; i++) - { - png_push_have_row(png_ptr, png_bytep_NULL); - png_read_push_finish_row(png_ptr); - } - } - break; - } - case 2: - { - int i; - for (i = 0; i < 4 && png_ptr->pass == 2; i++) - { - png_push_have_row(png_ptr, png_ptr->row_buf + 1); - png_read_push_finish_row(png_ptr); - } - for (i = 0; i < 4 && png_ptr->pass == 2; i++) - { - png_push_have_row(png_ptr, png_bytep_NULL); - png_read_push_finish_row(png_ptr); - } - if (png_ptr->pass == 4) /* pass 3 might be empty */ - { - for (i = 0; i < 2 && png_ptr->pass == 4; i++) - { - png_push_have_row(png_ptr, png_bytep_NULL); - png_read_push_finish_row(png_ptr); - } - } - break; - } - case 3: - { - int i; - for (i = 0; i < 4 && png_ptr->pass == 3; i++) - { - png_push_have_row(png_ptr, png_ptr->row_buf + 1); - png_read_push_finish_row(png_ptr); - } - if (png_ptr->pass == 4) /* skip top two generated rows */ - { - for (i = 0; i < 2 && png_ptr->pass == 4; i++) - { - png_push_have_row(png_ptr, png_bytep_NULL); - png_read_push_finish_row(png_ptr); - } - } - break; - } - case 4: - { - int i; - for (i = 0; i < 2 && png_ptr->pass == 4; i++) - { - png_push_have_row(png_ptr, png_ptr->row_buf + 1); - png_read_push_finish_row(png_ptr); - } - for (i = 0; i < 2 && png_ptr->pass == 4; i++) - { - png_push_have_row(png_ptr, png_bytep_NULL); - png_read_push_finish_row(png_ptr); - } - if (png_ptr->pass == 6) /* pass 5 might be empty */ - { - png_push_have_row(png_ptr, png_bytep_NULL); - png_read_push_finish_row(png_ptr); - } - break; - } - case 5: - { - int i; - for (i = 0; i < 2 && png_ptr->pass == 5; i++) - { - png_push_have_row(png_ptr, png_ptr->row_buf + 1); - png_read_push_finish_row(png_ptr); - } - if (png_ptr->pass == 6) /* skip top generated row */ - { - png_push_have_row(png_ptr, png_bytep_NULL); - png_read_push_finish_row(png_ptr); - } - break; - } - case 6: - { - png_push_have_row(png_ptr, png_ptr->row_buf + 1); - png_read_push_finish_row(png_ptr); - if (png_ptr->pass != 6) - break; - png_push_have_row(png_ptr, png_bytep_NULL); - png_read_push_finish_row(png_ptr); - } - } - } - else -#endif - { - png_push_have_row(png_ptr, png_ptr->row_buf + 1); - png_read_push_finish_row(png_ptr); - } -} - -void /* PRIVATE */ -png_read_push_finish_row(png_structp png_ptr) -{ -#ifdef PNG_USE_LOCAL_ARRAYS - /* arrays to facilitate easy interlacing - use pass (0 - 6) as index */ - - /* start of interlace block */ - PNG_CONST int FARDATA png_pass_start[] = {0, 4, 0, 2, 0, 1, 0}; - - /* offset to next interlace block */ - PNG_CONST int FARDATA png_pass_inc[] = {8, 8, 4, 4, 2, 2, 1}; - - /* start of interlace block in the y direction */ - PNG_CONST int FARDATA png_pass_ystart[] = {0, 0, 4, 0, 2, 0, 1}; - - /* offset to next interlace block in the y direction */ - PNG_CONST int FARDATA png_pass_yinc[] = {8, 8, 8, 4, 4, 2, 2}; - - /* Height of interlace block. This is not currently used - if you need - * it, uncomment it here and in png.h - PNG_CONST int FARDATA png_pass_height[] = {8, 8, 4, 4, 2, 2, 1}; - */ -#endif - - png_ptr->row_number++; - if (png_ptr->row_number < png_ptr->num_rows) - return; - - if (png_ptr->interlaced) - { - png_ptr->row_number = 0; - png_memset_check(png_ptr, png_ptr->prev_row, 0, - png_ptr->rowbytes + 1); - do - { - png_ptr->pass++; - if ((png_ptr->pass == 1 && png_ptr->width < 5) || - (png_ptr->pass == 3 && png_ptr->width < 3) || - (png_ptr->pass == 5 && png_ptr->width < 2)) - png_ptr->pass++; - - if (png_ptr->pass > 7) - png_ptr->pass--; - if (png_ptr->pass >= 7) - break; - - png_ptr->iwidth = (png_ptr->width + - png_pass_inc[png_ptr->pass] - 1 - - png_pass_start[png_ptr->pass]) / - png_pass_inc[png_ptr->pass]; - - png_ptr->irowbytes = PNG_ROWBYTES(png_ptr->pixel_depth, - png_ptr->iwidth) + 1; - - if (png_ptr->transformations & PNG_INTERLACE) - break; - - png_ptr->num_rows = (png_ptr->height + - png_pass_yinc[png_ptr->pass] - 1 - - png_pass_ystart[png_ptr->pass]) / - png_pass_yinc[png_ptr->pass]; - - } while (png_ptr->iwidth == 0 || png_ptr->num_rows == 0); - } -} - -#if defined(PNG_READ_tEXt_SUPPORTED) -void /* PRIVATE */ -png_push_handle_tEXt(png_structp png_ptr, png_infop info_ptr, png_uint_32 - length) -{ - if (!(png_ptr->mode & PNG_HAVE_IHDR) || (png_ptr->mode & PNG_HAVE_IEND)) - { - png_error(png_ptr, "Out of place tEXt"); - info_ptr = info_ptr; /* to quiet some compiler warnings */ - } - -#ifdef PNG_MAX_MALLOC_64K - png_ptr->skip_length = 0; /* This may not be necessary */ - - if (length > (png_uint_32)65535L) /* Can't hold entire string in memory */ - { - png_warning(png_ptr, "tEXt chunk too large to fit in memory"); - png_ptr->skip_length = length - (png_uint_32)65535L; - length = (png_uint_32)65535L; - } -#endif - - png_ptr->current_text = (png_charp)png_malloc(png_ptr, - (png_uint_32)(length+1)); - png_ptr->current_text[length] = '\0'; - png_ptr->current_text_ptr = png_ptr->current_text; - png_ptr->current_text_size = (png_size_t)length; - png_ptr->current_text_left = (png_size_t)length; - png_ptr->process_mode = PNG_READ_tEXt_MODE; -} - -void /* PRIVATE */ -png_push_read_tEXt(png_structp png_ptr, png_infop info_ptr) -{ - if (png_ptr->buffer_size && png_ptr->current_text_left) - { - png_size_t text_size; - - if (png_ptr->buffer_size < png_ptr->current_text_left) - text_size = png_ptr->buffer_size; - else - text_size = png_ptr->current_text_left; - png_crc_read(png_ptr, (png_bytep)png_ptr->current_text_ptr, text_size); - png_ptr->current_text_left -= text_size; - png_ptr->current_text_ptr += text_size; - } - if (!(png_ptr->current_text_left)) - { - png_textp text_ptr; - png_charp text; - png_charp key; - int ret; - - if (png_ptr->buffer_size < 4) - { - png_push_save_buffer(png_ptr); - return; - } - - png_push_crc_finish(png_ptr); - -#if defined(PNG_MAX_MALLOC_64K) - if (png_ptr->skip_length) - return; -#endif - - key = png_ptr->current_text; - - for (text = key; *text; text++) - /* empty loop */ ; - - if (text < key + png_ptr->current_text_size) - text++; - - text_ptr = (png_textp)png_malloc(png_ptr, - (png_uint_32)png_sizeof(png_text)); - text_ptr->compression = PNG_TEXT_COMPRESSION_NONE; - text_ptr->key = key; -#ifdef PNG_iTXt_SUPPORTED - text_ptr->lang = NULL; - text_ptr->lang_key = NULL; -#endif - text_ptr->text = text; - - ret = png_set_text_2(png_ptr, info_ptr, text_ptr, 1); - - png_free(png_ptr, key); - png_free(png_ptr, text_ptr); - png_ptr->current_text = NULL; - - if (ret) - png_warning(png_ptr, "Insufficient memory to store text chunk."); - } -} -#endif - -#if defined(PNG_READ_zTXt_SUPPORTED) -void /* PRIVATE */ -png_push_handle_zTXt(png_structp png_ptr, png_infop info_ptr, png_uint_32 - length) -{ - if (!(png_ptr->mode & PNG_HAVE_IHDR) || (png_ptr->mode & PNG_HAVE_IEND)) - { - png_error(png_ptr, "Out of place zTXt"); - info_ptr = info_ptr; /* to quiet some compiler warnings */ - } - -#ifdef PNG_MAX_MALLOC_64K - /* We can't handle zTXt chunks > 64K, since we don't have enough space - * to be able to store the uncompressed data. Actually, the threshold - * is probably around 32K, but it isn't as definite as 64K is. - */ - if (length > (png_uint_32)65535L) - { - png_warning(png_ptr, "zTXt chunk too large to fit in memory"); - png_push_crc_skip(png_ptr, length); - return; - } -#endif - - png_ptr->current_text = (png_charp)png_malloc(png_ptr, - (png_uint_32)(length+1)); - png_ptr->current_text[length] = '\0'; - png_ptr->current_text_ptr = png_ptr->current_text; - png_ptr->current_text_size = (png_size_t)length; - png_ptr->current_text_left = (png_size_t)length; - png_ptr->process_mode = PNG_READ_zTXt_MODE; -} - -void /* PRIVATE */ -png_push_read_zTXt(png_structp png_ptr, png_infop info_ptr) -{ - if (png_ptr->buffer_size && png_ptr->current_text_left) - { - png_size_t text_size; - - if (png_ptr->buffer_size < (png_uint_32)png_ptr->current_text_left) - text_size = png_ptr->buffer_size; - else - text_size = png_ptr->current_text_left; - png_crc_read(png_ptr, (png_bytep)png_ptr->current_text_ptr, text_size); - png_ptr->current_text_left -= text_size; - png_ptr->current_text_ptr += text_size; - } - if (!(png_ptr->current_text_left)) - { - png_textp text_ptr; - png_charp text; - png_charp key; - int ret; - png_size_t text_size, key_size; - - if (png_ptr->buffer_size < 4) - { - png_push_save_buffer(png_ptr); - return; - } - - png_push_crc_finish(png_ptr); - - key = png_ptr->current_text; - - for (text = key; *text; text++) - /* empty loop */ ; - - /* zTXt can't have zero text */ - if (text >= key + png_ptr->current_text_size) - { - png_ptr->current_text = NULL; - png_free(png_ptr, key); - return; - } - - text++; - - if (*text != PNG_TEXT_COMPRESSION_zTXt) /* check compression byte */ - { - png_ptr->current_text = NULL; - png_free(png_ptr, key); - return; - } - - text++; - - png_ptr->zstream.next_in = (png_bytep )text; - png_ptr->zstream.avail_in = (uInt)(png_ptr->current_text_size - - (text - key)); - png_ptr->zstream.next_out = png_ptr->zbuf; - png_ptr->zstream.avail_out = (uInt)png_ptr->zbuf_size; - - key_size = text - key; - text_size = 0; - text = NULL; - ret = Z_STREAM_END; - - while (png_ptr->zstream.avail_in) - { - ret = inflate(&png_ptr->zstream, Z_PARTIAL_FLUSH); - if (ret != Z_OK && ret != Z_STREAM_END) - { - inflateReset(&png_ptr->zstream); - png_ptr->zstream.avail_in = 0; - png_ptr->current_text = NULL; - png_free(png_ptr, key); - png_free(png_ptr, text); - return; - } - if (!(png_ptr->zstream.avail_out) || ret == Z_STREAM_END) - { - if (text == NULL) - { - text = (png_charp)png_malloc(png_ptr, - (png_uint_32)(png_ptr->zbuf_size - png_ptr->zstream.avail_out - + key_size + 1)); - png_memcpy(text + key_size, png_ptr->zbuf, - png_ptr->zbuf_size - png_ptr->zstream.avail_out); - png_memcpy(text, key, key_size); - text_size = key_size + png_ptr->zbuf_size - - png_ptr->zstream.avail_out; - *(text + text_size) = '\0'; - } - else - { - png_charp tmp; - - tmp = text; - text = (png_charp)png_malloc(png_ptr, text_size + - (png_uint_32)(png_ptr->zbuf_size - png_ptr->zstream.avail_out - + 1)); - png_memcpy(text, tmp, text_size); - png_free(png_ptr, tmp); - png_memcpy(text + text_size, png_ptr->zbuf, - png_ptr->zbuf_size - png_ptr->zstream.avail_out); - text_size += png_ptr->zbuf_size - png_ptr->zstream.avail_out; - *(text + text_size) = '\0'; - } - if (ret != Z_STREAM_END) - { - png_ptr->zstream.next_out = png_ptr->zbuf; - png_ptr->zstream.avail_out = (uInt)png_ptr->zbuf_size; - } - } - else - { - break; - } - - if (ret == Z_STREAM_END) - break; - } - - inflateReset(&png_ptr->zstream); - png_ptr->zstream.avail_in = 0; - - if (ret != Z_STREAM_END) - { - png_ptr->current_text = NULL; - png_free(png_ptr, key); - png_free(png_ptr, text); - return; - } - - png_ptr->current_text = NULL; - png_free(png_ptr, key); - key = text; - text += key_size; - - text_ptr = (png_textp)png_malloc(png_ptr, - (png_uint_32)png_sizeof(png_text)); - text_ptr->compression = PNG_TEXT_COMPRESSION_zTXt; - text_ptr->key = key; -#ifdef PNG_iTXt_SUPPORTED - text_ptr->lang = NULL; - text_ptr->lang_key = NULL; -#endif - text_ptr->text = text; - - ret = png_set_text_2(png_ptr, info_ptr, text_ptr, 1); - - png_free(png_ptr, key); - png_free(png_ptr, text_ptr); - - if (ret) - png_warning(png_ptr, "Insufficient memory to store text chunk."); - } -} -#endif - -#if defined(PNG_READ_iTXt_SUPPORTED) -void /* PRIVATE */ -png_push_handle_iTXt(png_structp png_ptr, png_infop info_ptr, png_uint_32 - length) -{ - if (!(png_ptr->mode & PNG_HAVE_IHDR) || (png_ptr->mode & PNG_HAVE_IEND)) - { - png_error(png_ptr, "Out of place iTXt"); - info_ptr = info_ptr; /* to quiet some compiler warnings */ - } - -#ifdef PNG_MAX_MALLOC_64K - png_ptr->skip_length = 0; /* This may not be necessary */ - - if (length > (png_uint_32)65535L) /* Can't hold entire string in memory */ - { - png_warning(png_ptr, "iTXt chunk too large to fit in memory"); - png_ptr->skip_length = length - (png_uint_32)65535L; - length = (png_uint_32)65535L; - } -#endif - - png_ptr->current_text = (png_charp)png_malloc(png_ptr, - (png_uint_32)(length+1)); - png_ptr->current_text[length] = '\0'; - png_ptr->current_text_ptr = png_ptr->current_text; - png_ptr->current_text_size = (png_size_t)length; - png_ptr->current_text_left = (png_size_t)length; - png_ptr->process_mode = PNG_READ_iTXt_MODE; -} - -void /* PRIVATE */ -png_push_read_iTXt(png_structp png_ptr, png_infop info_ptr) -{ - - if (png_ptr->buffer_size && png_ptr->current_text_left) - { - png_size_t text_size; - - if (png_ptr->buffer_size < png_ptr->current_text_left) - text_size = png_ptr->buffer_size; - else - text_size = png_ptr->current_text_left; - png_crc_read(png_ptr, (png_bytep)png_ptr->current_text_ptr, text_size); - png_ptr->current_text_left -= text_size; - png_ptr->current_text_ptr += text_size; - } - if (!(png_ptr->current_text_left)) - { - png_textp text_ptr; - png_charp key; - int comp_flag; - png_charp lang; - png_charp lang_key; - png_charp text; - int ret; - - if (png_ptr->buffer_size < 4) - { - png_push_save_buffer(png_ptr); - return; - } - - png_push_crc_finish(png_ptr); - -#if defined(PNG_MAX_MALLOC_64K) - if (png_ptr->skip_length) - return; -#endif - - key = png_ptr->current_text; - - for (lang = key; *lang; lang++) - /* empty loop */ ; - - if (lang < key + png_ptr->current_text_size - 3) - lang++; - - comp_flag = *lang++; - lang++; /* skip comp_type, always zero */ - - for (lang_key = lang; *lang_key; lang_key++) - /* empty loop */ ; - lang_key++; /* skip NUL separator */ - - text=lang_key; - if (lang_key < key + png_ptr->current_text_size - 1) - { - for (; *text; text++) - /* empty loop */ ; - } - - if (text < key + png_ptr->current_text_size) - text++; - - text_ptr = (png_textp)png_malloc(png_ptr, - (png_uint_32)png_sizeof(png_text)); - text_ptr->compression = comp_flag + 2; - text_ptr->key = key; - text_ptr->lang = lang; - text_ptr->lang_key = lang_key; - text_ptr->text = text; - text_ptr->text_length = 0; - text_ptr->itxt_length = png_strlen(text); - - ret = png_set_text_2(png_ptr, info_ptr, text_ptr, 1); - - png_ptr->current_text = NULL; - - png_free(png_ptr, text_ptr); - if (ret) - png_warning(png_ptr, "Insufficient memory to store iTXt chunk."); - } -} -#endif - -/* This function is called when we haven't found a handler for this - * chunk. If there isn't a problem with the chunk itself (ie a bad chunk - * name or a critical chunk), the chunk is (currently) silently ignored. - */ -void /* PRIVATE */ -png_push_handle_unknown(png_structp png_ptr, png_infop info_ptr, png_uint_32 - length) -{ - png_uint_32 skip=0; - png_check_chunk_name(png_ptr, png_ptr->chunk_name); - - if (!(png_ptr->chunk_name[0] & 0x20)) - { -#if defined(PNG_READ_UNKNOWN_CHUNKS_SUPPORTED) - if(png_handle_as_unknown(png_ptr, png_ptr->chunk_name) != - PNG_HANDLE_CHUNK_ALWAYS -#if defined(PNG_READ_USER_CHUNKS_SUPPORTED) - && png_ptr->read_user_chunk_fn == NULL -#endif - ) -#endif - png_chunk_error(png_ptr, "unknown critical chunk"); - - info_ptr = info_ptr; /* to quiet some compiler warnings */ - } - -#if defined(PNG_READ_UNKNOWN_CHUNKS_SUPPORTED) - if (png_ptr->flags & PNG_FLAG_KEEP_UNKNOWN_CHUNKS) - { -#ifdef PNG_MAX_MALLOC_64K - if (length > (png_uint_32)65535L) - { - png_warning(png_ptr, "unknown chunk too large to fit in memory"); - skip = length - (png_uint_32)65535L; - length = (png_uint_32)65535L; - } -#endif - png_memcpy((png_charp)png_ptr->unknown_chunk.name, - (png_charp)png_ptr->chunk_name, - png_sizeof(png_ptr->unknown_chunk.name)); - png_ptr->unknown_chunk.name[png_sizeof(png_ptr->unknown_chunk.name)-1]='\0'; - - png_ptr->unknown_chunk.data = (png_bytep)png_malloc(png_ptr, length); - png_ptr->unknown_chunk.size = (png_size_t)length; - png_crc_read(png_ptr, (png_bytep)png_ptr->unknown_chunk.data, length); -#if defined(PNG_READ_USER_CHUNKS_SUPPORTED) - if(png_ptr->read_user_chunk_fn != NULL) - { - /* callback to user unknown chunk handler */ - int ret; - ret = (*(png_ptr->read_user_chunk_fn)) - (png_ptr, &png_ptr->unknown_chunk); - if (ret < 0) - png_chunk_error(png_ptr, "error in user chunk"); - if (ret == 0) - { - if (!(png_ptr->chunk_name[0] & 0x20)) - if(png_handle_as_unknown(png_ptr, png_ptr->chunk_name) != - PNG_HANDLE_CHUNK_ALWAYS) - png_chunk_error(png_ptr, "unknown critical chunk"); - png_set_unknown_chunks(png_ptr, info_ptr, - &png_ptr->unknown_chunk, 1); - } - } -#else - png_set_unknown_chunks(png_ptr, info_ptr, &png_ptr->unknown_chunk, 1); -#endif - png_free(png_ptr, png_ptr->unknown_chunk.data); - png_ptr->unknown_chunk.data = NULL; - } - else -#endif - skip=length; - png_push_crc_skip(png_ptr, skip); -} - -void /* PRIVATE */ -png_push_have_info(png_structp png_ptr, png_infop info_ptr) -{ - if (png_ptr->info_fn != NULL) - (*(png_ptr->info_fn))(png_ptr, info_ptr); -} - -void /* PRIVATE */ -png_push_have_end(png_structp png_ptr, png_infop info_ptr) -{ - if (png_ptr->end_fn != NULL) - (*(png_ptr->end_fn))(png_ptr, info_ptr); -} - -void /* PRIVATE */ -png_push_have_row(png_structp png_ptr, png_bytep row) -{ - if (png_ptr->row_fn != NULL) - (*(png_ptr->row_fn))(png_ptr, row, png_ptr->row_number, - (int)png_ptr->pass); -} - -void PNGAPI -png_progressive_combine_row (png_structp png_ptr, - png_bytep old_row, png_bytep new_row) -{ -#ifdef PNG_USE_LOCAL_ARRAYS - PNG_CONST int FARDATA png_pass_dsp_mask[7] = - {0xff, 0x0f, 0xff, 0x33, 0xff, 0x55, 0xff}; -#endif - if(png_ptr == NULL) return; - if (new_row != NULL) /* new_row must == png_ptr->row_buf here. */ - png_combine_row(png_ptr, old_row, png_pass_dsp_mask[png_ptr->pass]); -} - -void PNGAPI -png_set_progressive_read_fn(png_structp png_ptr, png_voidp progressive_ptr, - png_progressive_info_ptr info_fn, png_progressive_row_ptr row_fn, - png_progressive_end_ptr end_fn) -{ - if(png_ptr == NULL) return; - png_ptr->info_fn = info_fn; - png_ptr->row_fn = row_fn; - png_ptr->end_fn = end_fn; - - png_set_read_fn(png_ptr, progressive_ptr, png_push_fill_buffer); -} - -png_voidp PNGAPI -png_get_progressive_ptr(png_structp png_ptr) -{ - if(png_ptr == NULL) return (NULL); - return png_ptr->io_ptr; -} -#endif /* PNG_PROGRESSIVE_READ_SUPPORTED */ diff --git a/src/3rdParty/CxImage/png/pngread.c b/src/3rdParty/CxImage/png/pngread.c deleted file mode 100644 index 5de5e56355..0000000000 --- a/src/3rdParty/CxImage/png/pngread.c +++ /dev/null @@ -1,1473 +0,0 @@ - -/* pngread.c - read a PNG file - * - * Last changed in libpng 1.2.24 December 14, 2007 - * For conditions of distribution and use, see copyright notice in png.h - * Copyright (c) 1998-2007 Glenn Randers-Pehrson - * (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger) - * (Version 0.88 Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.) - * - * This file contains routines that an application calls directly to - * read a PNG file or stream. - */ - -#define PNG_INTERNAL -#include "png.h" - -#if defined(PNG_READ_SUPPORTED) - -/* Create a PNG structure for reading, and allocate any memory needed. */ -png_structp PNGAPI -png_create_read_struct(png_const_charp user_png_ver, png_voidp error_ptr, - png_error_ptr error_fn, png_error_ptr warn_fn) -{ - -#ifdef PNG_USER_MEM_SUPPORTED - return (png_create_read_struct_2(user_png_ver, error_ptr, error_fn, - warn_fn, png_voidp_NULL, png_malloc_ptr_NULL, png_free_ptr_NULL)); -} - -/* Alternate create PNG structure for reading, and allocate any memory needed. */ -png_structp PNGAPI -png_create_read_struct_2(png_const_charp user_png_ver, png_voidp error_ptr, - png_error_ptr error_fn, png_error_ptr warn_fn, png_voidp mem_ptr, - png_malloc_ptr malloc_fn, png_free_ptr free_fn) -{ -#endif /* PNG_USER_MEM_SUPPORTED */ - - png_structp png_ptr; - -#ifdef PNG_SETJMP_SUPPORTED -#ifdef USE_FAR_KEYWORD - jmp_buf jmpbuf; -#endif -#endif - - int i; - - png_debug(1, "in png_create_read_struct\n"); -#ifdef PNG_USER_MEM_SUPPORTED - png_ptr = (png_structp)png_create_struct_2(PNG_STRUCT_PNG, - (png_malloc_ptr)malloc_fn, (png_voidp)mem_ptr); -#else - png_ptr = (png_structp)png_create_struct(PNG_STRUCT_PNG); -#endif - if (png_ptr == NULL) - return (NULL); - - /* added at libpng-1.2.6 */ -#ifdef PNG_SET_USER_LIMITS_SUPPORTED - png_ptr->user_width_max=PNG_USER_WIDTH_MAX; - png_ptr->user_height_max=PNG_USER_HEIGHT_MAX; -#endif - -#ifdef PNG_SETJMP_SUPPORTED -#ifdef USE_FAR_KEYWORD - if (setjmp(jmpbuf)) -#else - if (setjmp(png_ptr->jmpbuf)) -#endif - { - png_free(png_ptr, png_ptr->zbuf); - png_ptr->zbuf=NULL; -#ifdef PNG_USER_MEM_SUPPORTED - png_destroy_struct_2((png_voidp)png_ptr, - (png_free_ptr)free_fn, (png_voidp)mem_ptr); -#else - png_destroy_struct((png_voidp)png_ptr); -#endif - return (NULL); - } -#ifdef USE_FAR_KEYWORD - png_memcpy(png_ptr->jmpbuf,jmpbuf,png_sizeof(jmp_buf)); -#endif -#endif - -#ifdef PNG_USER_MEM_SUPPORTED - png_set_mem_fn(png_ptr, mem_ptr, malloc_fn, free_fn); -#endif - - png_set_error_fn(png_ptr, error_ptr, error_fn, warn_fn); - - i=0; - do - { - if(user_png_ver[i] != png_libpng_ver[i]) - png_ptr->flags |= PNG_FLAG_LIBRARY_MISMATCH; - } while (png_libpng_ver[i++]); - - if (png_ptr->flags & PNG_FLAG_LIBRARY_MISMATCH) - { - /* Libpng 0.90 and later are binary incompatible with libpng 0.89, so - * we must recompile any applications that use any older library version. - * For versions after libpng 1.0, we will be compatible, so we need - * only check the first digit. - */ - if (user_png_ver == NULL || user_png_ver[0] != png_libpng_ver[0] || - (user_png_ver[0] == '1' && user_png_ver[2] != png_libpng_ver[2]) || - (user_png_ver[0] == '0' && user_png_ver[2] < '9')) - { -#if !defined(PNG_NO_STDIO) && !defined(_WIN32_WCE) - char msg[80]; - if (user_png_ver) - { - png_snprintf(msg, 80, - "Application was compiled with png.h from libpng-%.20s", - user_png_ver); - png_warning(png_ptr, msg); - } - png_snprintf(msg, 80, - "Application is running with png.c from libpng-%.20s", - png_libpng_ver); - png_warning(png_ptr, msg); -#endif -#ifdef PNG_ERROR_NUMBERS_SUPPORTED - png_ptr->flags=0; -#endif - png_error(png_ptr, - "Incompatible libpng version in application and library"); - } - } - - /* initialize zbuf - compression buffer */ - png_ptr->zbuf_size = PNG_ZBUF_SIZE; - png_ptr->zbuf = (png_bytep)png_malloc(png_ptr, - (png_uint_32)png_ptr->zbuf_size); - png_ptr->zstream.zalloc = png_zalloc; - png_ptr->zstream.zfree = png_zfree; - png_ptr->zstream.opaque = (voidpf)png_ptr; - - switch (inflateInit(&png_ptr->zstream)) - { - case Z_OK: /* Do nothing */ break; - case Z_MEM_ERROR: - case Z_STREAM_ERROR: png_error(png_ptr, "zlib memory error"); break; - case Z_VERSION_ERROR: png_error(png_ptr, "zlib version error"); break; - default: png_error(png_ptr, "Unknown zlib error"); - } - - png_ptr->zstream.next_out = png_ptr->zbuf; - png_ptr->zstream.avail_out = (uInt)png_ptr->zbuf_size; - - png_set_read_fn(png_ptr, png_voidp_NULL, png_rw_ptr_NULL); - -#ifdef PNG_SETJMP_SUPPORTED -/* Applications that neglect to set up their own setjmp() and then encounter - a png_error() will longjmp here. Since the jmpbuf is then meaningless we - abort instead of returning. */ -#ifdef USE_FAR_KEYWORD - if (setjmp(jmpbuf)) - PNG_ABORT(); - png_memcpy(png_ptr->jmpbuf,jmpbuf,png_sizeof(jmp_buf)); -#else - if (setjmp(png_ptr->jmpbuf)) - PNG_ABORT(); -#endif -#endif - return (png_ptr); -} - -#if defined(PNG_1_0_X) || defined(PNG_1_2_X) -/* Initialize PNG structure for reading, and allocate any memory needed. - This interface is deprecated in favour of the png_create_read_struct(), - and it will disappear as of libpng-1.3.0. */ -#undef png_read_init -void PNGAPI -png_read_init(png_structp png_ptr) -{ - /* We only come here via pre-1.0.7-compiled applications */ - png_read_init_2(png_ptr, "1.0.6 or earlier", 0, 0); -} - -void PNGAPI -png_read_init_2(png_structp png_ptr, png_const_charp user_png_ver, - png_size_t png_struct_size, png_size_t png_info_size) -{ - /* We only come here via pre-1.0.12-compiled applications */ - if(png_ptr == NULL) return; -#if !defined(PNG_NO_STDIO) && !defined(_WIN32_WCE) - if(png_sizeof(png_struct) > png_struct_size || - png_sizeof(png_info) > png_info_size) - { - char msg[80]; - png_ptr->warning_fn=NULL; - if (user_png_ver) - { - png_snprintf(msg, 80, - "Application was compiled with png.h from libpng-%.20s", - user_png_ver); - png_warning(png_ptr, msg); - } - png_snprintf(msg, 80, - "Application is running with png.c from libpng-%.20s", - png_libpng_ver); - png_warning(png_ptr, msg); - } -#endif - if(png_sizeof(png_struct) > png_struct_size) - { - png_ptr->error_fn=NULL; -#ifdef PNG_ERROR_NUMBERS_SUPPORTED - png_ptr->flags=0; -#endif - png_error(png_ptr, - "The png struct allocated by the application for reading is too small."); - } - if(png_sizeof(png_info) > png_info_size) - { - png_ptr->error_fn=NULL; -#ifdef PNG_ERROR_NUMBERS_SUPPORTED - png_ptr->flags=0; -#endif - png_error(png_ptr, - "The info struct allocated by application for reading is too small."); - } - png_read_init_3(&png_ptr, user_png_ver, png_struct_size); -} -#endif /* PNG_1_0_X || PNG_1_2_X */ - -void PNGAPI -png_read_init_3(png_structpp ptr_ptr, png_const_charp user_png_ver, - png_size_t png_struct_size) -{ -#ifdef PNG_SETJMP_SUPPORTED - jmp_buf tmp_jmp; /* to save current jump buffer */ -#endif - - int i=0; - - png_structp png_ptr=*ptr_ptr; - - if(png_ptr == NULL) return; - - do - { - if(user_png_ver[i] != png_libpng_ver[i]) - { -#ifdef PNG_LEGACY_SUPPORTED - png_ptr->flags |= PNG_FLAG_LIBRARY_MISMATCH; -#else - png_ptr->warning_fn=NULL; - png_warning(png_ptr, - "Application uses deprecated png_read_init() and should be recompiled."); - break; -#endif - } - } while (png_libpng_ver[i++]); - - png_debug(1, "in png_read_init_3\n"); - -#ifdef PNG_SETJMP_SUPPORTED - /* save jump buffer and error functions */ - png_memcpy(tmp_jmp, png_ptr->jmpbuf, png_sizeof (jmp_buf)); -#endif - - if(png_sizeof(png_struct) > png_struct_size) - { - png_destroy_struct(png_ptr); - *ptr_ptr = (png_structp)png_create_struct(PNG_STRUCT_PNG); - png_ptr = *ptr_ptr; - } - - /* reset all variables to 0 */ - png_memset(png_ptr, 0, png_sizeof (png_struct)); - -#ifdef PNG_SETJMP_SUPPORTED - /* restore jump buffer */ - png_memcpy(png_ptr->jmpbuf, tmp_jmp, png_sizeof (jmp_buf)); -#endif - - /* added at libpng-1.2.6 */ -#ifdef PNG_SET_USER_LIMITS_SUPPORTED - png_ptr->user_width_max=PNG_USER_WIDTH_MAX; - png_ptr->user_height_max=PNG_USER_HEIGHT_MAX; -#endif - - /* initialize zbuf - compression buffer */ - png_ptr->zbuf_size = PNG_ZBUF_SIZE; - png_ptr->zbuf = (png_bytep)png_malloc(png_ptr, - (png_uint_32)png_ptr->zbuf_size); - png_ptr->zstream.zalloc = png_zalloc; - png_ptr->zstream.zfree = png_zfree; - png_ptr->zstream.opaque = (voidpf)png_ptr; - - switch (inflateInit(&png_ptr->zstream)) - { - case Z_OK: /* Do nothing */ break; - case Z_MEM_ERROR: - case Z_STREAM_ERROR: png_error(png_ptr, "zlib memory"); break; - case Z_VERSION_ERROR: png_error(png_ptr, "zlib version"); break; - default: png_error(png_ptr, "Unknown zlib error"); - } - - png_ptr->zstream.next_out = png_ptr->zbuf; - png_ptr->zstream.avail_out = (uInt)png_ptr->zbuf_size; - - png_set_read_fn(png_ptr, png_voidp_NULL, png_rw_ptr_NULL); -} - -#ifndef PNG_NO_SEQUENTIAL_READ_SUPPORTED -/* Read the information before the actual image data. This has been - * changed in v0.90 to allow reading a file that already has the magic - * bytes read from the stream. You can tell libpng how many bytes have - * been read from the beginning of the stream (up to the maximum of 8) - * via png_set_sig_bytes(), and we will only check the remaining bytes - * here. The application can then have access to the signature bytes we - * read if it is determined that this isn't a valid PNG file. - */ -void PNGAPI -png_read_info(png_structp png_ptr, png_infop info_ptr) -{ - if(png_ptr == NULL) return; - png_debug(1, "in png_read_info\n"); - /* If we haven't checked all of the PNG signature bytes, do so now. */ - if (png_ptr->sig_bytes < 8) - { - png_size_t num_checked = png_ptr->sig_bytes, - num_to_check = 8 - num_checked; - - png_read_data(png_ptr, &(info_ptr->signature[num_checked]), num_to_check); - png_ptr->sig_bytes = 8; - - if (png_sig_cmp(info_ptr->signature, num_checked, num_to_check)) - { - if (num_checked < 4 && - png_sig_cmp(info_ptr->signature, num_checked, num_to_check - 4)) - png_error(png_ptr, "Not a PNG file"); - else - png_error(png_ptr, "PNG file corrupted by ASCII conversion"); - } - if (num_checked < 3) - png_ptr->mode |= PNG_HAVE_PNG_SIGNATURE; - } - - for(;;) - { -#ifdef PNG_USE_LOCAL_ARRAYS - PNG_CONST PNG_IHDR; - PNG_CONST PNG_IDAT; - PNG_CONST PNG_IEND; - PNG_CONST PNG_PLTE; -#if defined(PNG_READ_bKGD_SUPPORTED) - PNG_CONST PNG_bKGD; -#endif -#if defined(PNG_READ_cHRM_SUPPORTED) - PNG_CONST PNG_cHRM; -#endif -#if defined(PNG_READ_gAMA_SUPPORTED) - PNG_CONST PNG_gAMA; -#endif -#if defined(PNG_READ_hIST_SUPPORTED) - PNG_CONST PNG_hIST; -#endif -#if defined(PNG_READ_iCCP_SUPPORTED) - PNG_CONST PNG_iCCP; -#endif -#if defined(PNG_READ_iTXt_SUPPORTED) - PNG_CONST PNG_iTXt; -#endif -#if defined(PNG_READ_oFFs_SUPPORTED) - PNG_CONST PNG_oFFs; -#endif -#if defined(PNG_READ_pCAL_SUPPORTED) - PNG_CONST PNG_pCAL; -#endif -#if defined(PNG_READ_pHYs_SUPPORTED) - PNG_CONST PNG_pHYs; -#endif -#if defined(PNG_READ_sBIT_SUPPORTED) - PNG_CONST PNG_sBIT; -#endif -#if defined(PNG_READ_sCAL_SUPPORTED) - PNG_CONST PNG_sCAL; -#endif -#if defined(PNG_READ_sPLT_SUPPORTED) - PNG_CONST PNG_sPLT; -#endif -#if defined(PNG_READ_sRGB_SUPPORTED) - PNG_CONST PNG_sRGB; -#endif -#if defined(PNG_READ_tEXt_SUPPORTED) - PNG_CONST PNG_tEXt; -#endif -#if defined(PNG_READ_tIME_SUPPORTED) - PNG_CONST PNG_tIME; -#endif -#if defined(PNG_READ_tRNS_SUPPORTED) - PNG_CONST PNG_tRNS; -#endif -#if defined(PNG_READ_zTXt_SUPPORTED) - PNG_CONST PNG_zTXt; -#endif -#endif /* PNG_USE_LOCAL_ARRAYS */ - png_byte chunk_length[4]; - png_uint_32 length; - - png_read_data(png_ptr, chunk_length, 4); - length = png_get_uint_31(png_ptr,chunk_length); - - png_reset_crc(png_ptr); - png_crc_read(png_ptr, png_ptr->chunk_name, 4); - - png_debug2(0, "Reading %s chunk, length=%lu.\n", png_ptr->chunk_name, - length); - - /* This should be a binary subdivision search or a hash for - * matching the chunk name rather than a linear search. - */ - if (!png_memcmp(png_ptr->chunk_name, png_IDAT, 4)) - if(png_ptr->mode & PNG_AFTER_IDAT) - png_ptr->mode |= PNG_HAVE_CHUNK_AFTER_IDAT; - - if (!png_memcmp(png_ptr->chunk_name, png_IHDR, 4)) - png_handle_IHDR(png_ptr, info_ptr, length); - else if (!png_memcmp(png_ptr->chunk_name, png_IEND, 4)) - png_handle_IEND(png_ptr, info_ptr, length); -#ifdef PNG_HANDLE_AS_UNKNOWN_SUPPORTED - else if (png_handle_as_unknown(png_ptr, png_ptr->chunk_name)) - { - if (!png_memcmp(png_ptr->chunk_name, png_IDAT, 4)) - png_ptr->mode |= PNG_HAVE_IDAT; - png_handle_unknown(png_ptr, info_ptr, length); - if (!png_memcmp(png_ptr->chunk_name, png_PLTE, 4)) - png_ptr->mode |= PNG_HAVE_PLTE; - else if (!png_memcmp(png_ptr->chunk_name, png_IDAT, 4)) - { - if (!(png_ptr->mode & PNG_HAVE_IHDR)) - png_error(png_ptr, "Missing IHDR before IDAT"); - else if (png_ptr->color_type == PNG_COLOR_TYPE_PALETTE && - !(png_ptr->mode & PNG_HAVE_PLTE)) - png_error(png_ptr, "Missing PLTE before IDAT"); - break; - } - } -#endif - else if (!png_memcmp(png_ptr->chunk_name, png_PLTE, 4)) - png_handle_PLTE(png_ptr, info_ptr, length); - else if (!png_memcmp(png_ptr->chunk_name, png_IDAT, 4)) - { - if (!(png_ptr->mode & PNG_HAVE_IHDR)) - png_error(png_ptr, "Missing IHDR before IDAT"); - else if (png_ptr->color_type == PNG_COLOR_TYPE_PALETTE && - !(png_ptr->mode & PNG_HAVE_PLTE)) - png_error(png_ptr, "Missing PLTE before IDAT"); - - png_ptr->idat_size = length; - png_ptr->mode |= PNG_HAVE_IDAT; - break; - } -#if defined(PNG_READ_bKGD_SUPPORTED) - else if (!png_memcmp(png_ptr->chunk_name, png_bKGD, 4)) - png_handle_bKGD(png_ptr, info_ptr, length); -#endif -#if defined(PNG_READ_cHRM_SUPPORTED) - else if (!png_memcmp(png_ptr->chunk_name, png_cHRM, 4)) - png_handle_cHRM(png_ptr, info_ptr, length); -#endif -#if defined(PNG_READ_gAMA_SUPPORTED) - else if (!png_memcmp(png_ptr->chunk_name, png_gAMA, 4)) - png_handle_gAMA(png_ptr, info_ptr, length); -#endif -#if defined(PNG_READ_hIST_SUPPORTED) - else if (!png_memcmp(png_ptr->chunk_name, png_hIST, 4)) - png_handle_hIST(png_ptr, info_ptr, length); -#endif -#if defined(PNG_READ_oFFs_SUPPORTED) - else if (!png_memcmp(png_ptr->chunk_name, png_oFFs, 4)) - png_handle_oFFs(png_ptr, info_ptr, length); -#endif -#if defined(PNG_READ_pCAL_SUPPORTED) - else if (!png_memcmp(png_ptr->chunk_name, png_pCAL, 4)) - png_handle_pCAL(png_ptr, info_ptr, length); -#endif -#if defined(PNG_READ_sCAL_SUPPORTED) - else if (!png_memcmp(png_ptr->chunk_name, png_sCAL, 4)) - png_handle_sCAL(png_ptr, info_ptr, length); -#endif -#if defined(PNG_READ_pHYs_SUPPORTED) - else if (!png_memcmp(png_ptr->chunk_name, png_pHYs, 4)) - png_handle_pHYs(png_ptr, info_ptr, length); -#endif -#if defined(PNG_READ_sBIT_SUPPORTED) - else if (!png_memcmp(png_ptr->chunk_name, png_sBIT, 4)) - png_handle_sBIT(png_ptr, info_ptr, length); -#endif -#if defined(PNG_READ_sRGB_SUPPORTED) - else if (!png_memcmp(png_ptr->chunk_name, png_sRGB, 4)) - png_handle_sRGB(png_ptr, info_ptr, length); -#endif -#if defined(PNG_READ_iCCP_SUPPORTED) - else if (!png_memcmp(png_ptr->chunk_name, png_iCCP, 4)) - png_handle_iCCP(png_ptr, info_ptr, length); -#endif -#if defined(PNG_READ_sPLT_SUPPORTED) - else if (!png_memcmp(png_ptr->chunk_name, png_sPLT, 4)) - png_handle_sPLT(png_ptr, info_ptr, length); -#endif -#if defined(PNG_READ_tEXt_SUPPORTED) - else if (!png_memcmp(png_ptr->chunk_name, png_tEXt, 4)) - png_handle_tEXt(png_ptr, info_ptr, length); -#endif -#if defined(PNG_READ_tIME_SUPPORTED) - else if (!png_memcmp(png_ptr->chunk_name, png_tIME, 4)) - png_handle_tIME(png_ptr, info_ptr, length); -#endif -#if defined(PNG_READ_tRNS_SUPPORTED) - else if (!png_memcmp(png_ptr->chunk_name, png_tRNS, 4)) - png_handle_tRNS(png_ptr, info_ptr, length); -#endif -#if defined(PNG_READ_zTXt_SUPPORTED) - else if (!png_memcmp(png_ptr->chunk_name, png_zTXt, 4)) - png_handle_zTXt(png_ptr, info_ptr, length); -#endif -#if defined(PNG_READ_iTXt_SUPPORTED) - else if (!png_memcmp(png_ptr->chunk_name, png_iTXt, 4)) - png_handle_iTXt(png_ptr, info_ptr, length); -#endif - else - png_handle_unknown(png_ptr, info_ptr, length); - } -} -#endif /* PNG_NO_SEQUENTIAL_READ_SUPPORTED */ - -/* optional call to update the users info_ptr structure */ -void PNGAPI -png_read_update_info(png_structp png_ptr, png_infop info_ptr) -{ - png_debug(1, "in png_read_update_info\n"); - if(png_ptr == NULL) return; - if (!(png_ptr->flags & PNG_FLAG_ROW_INIT)) - png_read_start_row(png_ptr); - else - png_warning(png_ptr, - "Ignoring extra png_read_update_info() call; row buffer not reallocated"); - png_read_transform_info(png_ptr, info_ptr); -} - -#ifndef PNG_NO_SEQUENTIAL_READ_SUPPORTED -/* Initialize palette, background, etc, after transformations - * are set, but before any reading takes place. This allows - * the user to obtain a gamma-corrected palette, for example. - * If the user doesn't call this, we will do it ourselves. - */ -void PNGAPI -png_start_read_image(png_structp png_ptr) -{ - png_debug(1, "in png_start_read_image\n"); - if(png_ptr == NULL) return; - if (!(png_ptr->flags & PNG_FLAG_ROW_INIT)) - png_read_start_row(png_ptr); -} -#endif /* PNG_NO_SEQUENTIAL_READ_SUPPORTED */ - -#ifndef PNG_NO_SEQUENTIAL_READ_SUPPORTED -void PNGAPI -png_read_row(png_structp png_ptr, png_bytep row, png_bytep dsp_row) -{ -#ifdef PNG_USE_LOCAL_ARRAYS - PNG_CONST PNG_IDAT; - PNG_CONST int png_pass_dsp_mask[7] = {0xff, 0x0f, 0xff, 0x33, 0xff, 0x55, - 0xff}; - PNG_CONST int png_pass_mask[7] = {0x80, 0x08, 0x88, 0x22, 0xaa, 0x55, 0xff}; -#endif - int ret; - if(png_ptr == NULL) return; - png_debug2(1, "in png_read_row (row %lu, pass %d)\n", - png_ptr->row_number, png_ptr->pass); - if (!(png_ptr->flags & PNG_FLAG_ROW_INIT)) - png_read_start_row(png_ptr); - if (png_ptr->row_number == 0 && png_ptr->pass == 0) - { - /* check for transforms that have been set but were defined out */ -#if defined(PNG_WRITE_INVERT_SUPPORTED) && !defined(PNG_READ_INVERT_SUPPORTED) - if (png_ptr->transformations & PNG_INVERT_MONO) - png_warning(png_ptr, "PNG_READ_INVERT_SUPPORTED is not defined."); -#endif -#if defined(PNG_WRITE_FILLER_SUPPORTED) && !defined(PNG_READ_FILLER_SUPPORTED) - if (png_ptr->transformations & PNG_FILLER) - png_warning(png_ptr, "PNG_READ_FILLER_SUPPORTED is not defined."); -#endif -#if defined(PNG_WRITE_PACKSWAP_SUPPORTED) && !defined(PNG_READ_PACKSWAP_SUPPORTED) - if (png_ptr->transformations & PNG_PACKSWAP) - png_warning(png_ptr, "PNG_READ_PACKSWAP_SUPPORTED is not defined."); -#endif -#if defined(PNG_WRITE_PACK_SUPPORTED) && !defined(PNG_READ_PACK_SUPPORTED) - if (png_ptr->transformations & PNG_PACK) - png_warning(png_ptr, "PNG_READ_PACK_SUPPORTED is not defined."); -#endif -#if defined(PNG_WRITE_SHIFT_SUPPORTED) && !defined(PNG_READ_SHIFT_SUPPORTED) - if (png_ptr->transformations & PNG_SHIFT) - png_warning(png_ptr, "PNG_READ_SHIFT_SUPPORTED is not defined."); -#endif -#if defined(PNG_WRITE_BGR_SUPPORTED) && !defined(PNG_READ_BGR_SUPPORTED) - if (png_ptr->transformations & PNG_BGR) - png_warning(png_ptr, "PNG_READ_BGR_SUPPORTED is not defined."); -#endif -#if defined(PNG_WRITE_SWAP_SUPPORTED) && !defined(PNG_READ_SWAP_SUPPORTED) - if (png_ptr->transformations & PNG_SWAP_BYTES) - png_warning(png_ptr, "PNG_READ_SWAP_SUPPORTED is not defined."); -#endif - } - -#if defined(PNG_READ_INTERLACING_SUPPORTED) - /* if interlaced and we do not need a new row, combine row and return */ - if (png_ptr->interlaced && (png_ptr->transformations & PNG_INTERLACE)) - { - switch (png_ptr->pass) - { - case 0: - if (png_ptr->row_number & 0x07) - { - if (dsp_row != NULL) - png_combine_row(png_ptr, dsp_row, - png_pass_dsp_mask[png_ptr->pass]); - png_read_finish_row(png_ptr); - return; - } - break; - case 1: - if ((png_ptr->row_number & 0x07) || png_ptr->width < 5) - { - if (dsp_row != NULL) - png_combine_row(png_ptr, dsp_row, - png_pass_dsp_mask[png_ptr->pass]); - png_read_finish_row(png_ptr); - return; - } - break; - case 2: - if ((png_ptr->row_number & 0x07) != 4) - { - if (dsp_row != NULL && (png_ptr->row_number & 4)) - png_combine_row(png_ptr, dsp_row, - png_pass_dsp_mask[png_ptr->pass]); - png_read_finish_row(png_ptr); - return; - } - break; - case 3: - if ((png_ptr->row_number & 3) || png_ptr->width < 3) - { - if (dsp_row != NULL) - png_combine_row(png_ptr, dsp_row, - png_pass_dsp_mask[png_ptr->pass]); - png_read_finish_row(png_ptr); - return; - } - break; - case 4: - if ((png_ptr->row_number & 3) != 2) - { - if (dsp_row != NULL && (png_ptr->row_number & 2)) - png_combine_row(png_ptr, dsp_row, - png_pass_dsp_mask[png_ptr->pass]); - png_read_finish_row(png_ptr); - return; - } - break; - case 5: - if ((png_ptr->row_number & 1) || png_ptr->width < 2) - { - if (dsp_row != NULL) - png_combine_row(png_ptr, dsp_row, - png_pass_dsp_mask[png_ptr->pass]); - png_read_finish_row(png_ptr); - return; - } - break; - case 6: - if (!(png_ptr->row_number & 1)) - { - png_read_finish_row(png_ptr); - return; - } - break; - } - } -#endif - - if (!(png_ptr->mode & PNG_HAVE_IDAT)) - png_error(png_ptr, "Invalid attempt to read row data"); - - png_ptr->zstream.next_out = png_ptr->row_buf; - png_ptr->zstream.avail_out = (uInt)png_ptr->irowbytes; - do - { - if (!(png_ptr->zstream.avail_in)) - { - while (!png_ptr->idat_size) - { - png_byte chunk_length[4]; - - png_crc_finish(png_ptr, 0); - - png_read_data(png_ptr, chunk_length, 4); - png_ptr->idat_size = png_get_uint_31(png_ptr,chunk_length); - - png_reset_crc(png_ptr); - png_crc_read(png_ptr, png_ptr->chunk_name, 4); - if (png_memcmp(png_ptr->chunk_name, png_IDAT, 4)) - png_error(png_ptr, "Not enough image data"); - } - png_ptr->zstream.avail_in = (uInt)png_ptr->zbuf_size; - png_ptr->zstream.next_in = png_ptr->zbuf; - if (png_ptr->zbuf_size > png_ptr->idat_size) - png_ptr->zstream.avail_in = (uInt)png_ptr->idat_size; - png_crc_read(png_ptr, png_ptr->zbuf, - (png_size_t)png_ptr->zstream.avail_in); - png_ptr->idat_size -= png_ptr->zstream.avail_in; - } - ret = inflate(&png_ptr->zstream, Z_PARTIAL_FLUSH); - if (ret == Z_STREAM_END) - { - if (png_ptr->zstream.avail_out || png_ptr->zstream.avail_in || - png_ptr->idat_size) - png_error(png_ptr, "Extra compressed data"); - png_ptr->mode |= PNG_AFTER_IDAT; - png_ptr->flags |= PNG_FLAG_ZLIB_FINISHED; - break; - } - if (ret != Z_OK) - png_error(png_ptr, png_ptr->zstream.msg ? png_ptr->zstream.msg : - "Decompression error"); - - } while (png_ptr->zstream.avail_out); - - png_ptr->row_info.color_type = png_ptr->color_type; - png_ptr->row_info.width = png_ptr->iwidth; - png_ptr->row_info.channels = png_ptr->channels; - png_ptr->row_info.bit_depth = png_ptr->bit_depth; - png_ptr->row_info.pixel_depth = png_ptr->pixel_depth; - png_ptr->row_info.rowbytes = PNG_ROWBYTES(png_ptr->row_info.pixel_depth, - png_ptr->row_info.width); - - if(png_ptr->row_buf[0]) - png_read_filter_row(png_ptr, &(png_ptr->row_info), - png_ptr->row_buf + 1, png_ptr->prev_row + 1, - (int)(png_ptr->row_buf[0])); - - png_memcpy_check(png_ptr, png_ptr->prev_row, png_ptr->row_buf, - png_ptr->rowbytes + 1); - -#if defined(PNG_MNG_FEATURES_SUPPORTED) - if((png_ptr->mng_features_permitted & PNG_FLAG_MNG_FILTER_64) && - (png_ptr->filter_type == PNG_INTRAPIXEL_DIFFERENCING)) - { - /* Intrapixel differencing */ - png_do_read_intrapixel(&(png_ptr->row_info), png_ptr->row_buf + 1); - } -#endif - - - if (png_ptr->transformations || (png_ptr->flags&PNG_FLAG_STRIP_ALPHA)) - png_do_read_transformations(png_ptr); - -#if defined(PNG_READ_INTERLACING_SUPPORTED) - /* blow up interlaced rows to full size */ - if (png_ptr->interlaced && - (png_ptr->transformations & PNG_INTERLACE)) - { - if (png_ptr->pass < 6) -/* old interface (pre-1.0.9): - png_do_read_interlace(&(png_ptr->row_info), - png_ptr->row_buf + 1, png_ptr->pass, png_ptr->transformations); - */ - png_do_read_interlace(png_ptr); - - if (dsp_row != NULL) - png_combine_row(png_ptr, dsp_row, - png_pass_dsp_mask[png_ptr->pass]); - if (row != NULL) - png_combine_row(png_ptr, row, - png_pass_mask[png_ptr->pass]); - } - else -#endif - { - if (row != NULL) - png_combine_row(png_ptr, row, 0xff); - if (dsp_row != NULL) - png_combine_row(png_ptr, dsp_row, 0xff); - } - png_read_finish_row(png_ptr); - - if (png_ptr->read_row_fn != NULL) - (*(png_ptr->read_row_fn))(png_ptr, png_ptr->row_number, png_ptr->pass); -} -#endif /* PNG_NO_SEQUENTIAL_READ_SUPPORTED */ - -#ifndef PNG_NO_SEQUENTIAL_READ_SUPPORTED -/* Read one or more rows of image data. If the image is interlaced, - * and png_set_interlace_handling() has been called, the rows need to - * contain the contents of the rows from the previous pass. If the - * image has alpha or transparency, and png_handle_alpha()[*] has been - * called, the rows contents must be initialized to the contents of the - * screen. - * - * "row" holds the actual image, and pixels are placed in it - * as they arrive. If the image is displayed after each pass, it will - * appear to "sparkle" in. "display_row" can be used to display a - * "chunky" progressive image, with finer detail added as it becomes - * available. If you do not want this "chunky" display, you may pass - * NULL for display_row. If you do not want the sparkle display, and - * you have not called png_handle_alpha(), you may pass NULL for rows. - * If you have called png_handle_alpha(), and the image has either an - * alpha channel or a transparency chunk, you must provide a buffer for - * rows. In this case, you do not have to provide a display_row buffer - * also, but you may. If the image is not interlaced, or if you have - * not called png_set_interlace_handling(), the display_row buffer will - * be ignored, so pass NULL to it. - * - * [*] png_handle_alpha() does not exist yet, as of this version of libpng - */ - -void PNGAPI -png_read_rows(png_structp png_ptr, png_bytepp row, - png_bytepp display_row, png_uint_32 num_rows) -{ - png_uint_32 i; - png_bytepp rp; - png_bytepp dp; - - png_debug(1, "in png_read_rows\n"); - if(png_ptr == NULL) return; - rp = row; - dp = display_row; - if (rp != NULL && dp != NULL) - for (i = 0; i < num_rows; i++) - { - png_bytep rptr = *rp++; - png_bytep dptr = *dp++; - - png_read_row(png_ptr, rptr, dptr); - } - else if(rp != NULL) - for (i = 0; i < num_rows; i++) - { - png_bytep rptr = *rp; - png_read_row(png_ptr, rptr, png_bytep_NULL); - rp++; - } - else if(dp != NULL) - for (i = 0; i < num_rows; i++) - { - png_bytep dptr = *dp; - png_read_row(png_ptr, png_bytep_NULL, dptr); - dp++; - } -} -#endif /* PNG_NO_SEQUENTIAL_READ_SUPPORTED */ - -#ifndef PNG_NO_SEQUENTIAL_READ_SUPPORTED -/* Read the entire image. If the image has an alpha channel or a tRNS - * chunk, and you have called png_handle_alpha()[*], you will need to - * initialize the image to the current image that PNG will be overlaying. - * We set the num_rows again here, in case it was incorrectly set in - * png_read_start_row() by a call to png_read_update_info() or - * png_start_read_image() if png_set_interlace_handling() wasn't called - * prior to either of these functions like it should have been. You can - * only call this function once. If you desire to have an image for - * each pass of a interlaced image, use png_read_rows() instead. - * - * [*] png_handle_alpha() does not exist yet, as of this version of libpng - */ -void PNGAPI -png_read_image(png_structp png_ptr, png_bytepp image) -{ - png_uint_32 i,image_height; - int pass, j; - png_bytepp rp; - - png_debug(1, "in png_read_image\n"); - if(png_ptr == NULL) return; - -#ifdef PNG_READ_INTERLACING_SUPPORTED - pass = png_set_interlace_handling(png_ptr); -#else - if (png_ptr->interlaced) - png_error(png_ptr, - "Cannot read interlaced image -- interlace handler disabled."); - pass = 1; -#endif - - - image_height=png_ptr->height; - png_ptr->num_rows = image_height; /* Make sure this is set correctly */ - - for (j = 0; j < pass; j++) - { - rp = image; - for (i = 0; i < image_height; i++) - { - png_read_row(png_ptr, *rp, png_bytep_NULL); - rp++; - } - } -} -#endif /* PNG_NO_SEQUENTIAL_READ_SUPPORTED */ - -#ifndef PNG_NO_SEQUENTIAL_READ_SUPPORTED -/* Read the end of the PNG file. Will not read past the end of the - * file, will verify the end is accurate, and will read any comments - * or time information at the end of the file, if info is not NULL. - */ -void PNGAPI -png_read_end(png_structp png_ptr, png_infop info_ptr) -{ - png_byte chunk_length[4]; - png_uint_32 length; - - png_debug(1, "in png_read_end\n"); - if(png_ptr == NULL) return; - png_crc_finish(png_ptr, 0); /* Finish off CRC from last IDAT chunk */ - - do - { -#ifdef PNG_USE_LOCAL_ARRAYS - PNG_CONST PNG_IHDR; - PNG_CONST PNG_IDAT; - PNG_CONST PNG_IEND; - PNG_CONST PNG_PLTE; -#if defined(PNG_READ_bKGD_SUPPORTED) - PNG_CONST PNG_bKGD; -#endif -#if defined(PNG_READ_cHRM_SUPPORTED) - PNG_CONST PNG_cHRM; -#endif -#if defined(PNG_READ_gAMA_SUPPORTED) - PNG_CONST PNG_gAMA; -#endif -#if defined(PNG_READ_hIST_SUPPORTED) - PNG_CONST PNG_hIST; -#endif -#if defined(PNG_READ_iCCP_SUPPORTED) - PNG_CONST PNG_iCCP; -#endif -#if defined(PNG_READ_iTXt_SUPPORTED) - PNG_CONST PNG_iTXt; -#endif -#if defined(PNG_READ_oFFs_SUPPORTED) - PNG_CONST PNG_oFFs; -#endif -#if defined(PNG_READ_pCAL_SUPPORTED) - PNG_CONST PNG_pCAL; -#endif -#if defined(PNG_READ_pHYs_SUPPORTED) - PNG_CONST PNG_pHYs; -#endif -#if defined(PNG_READ_sBIT_SUPPORTED) - PNG_CONST PNG_sBIT; -#endif -#if defined(PNG_READ_sCAL_SUPPORTED) - PNG_CONST PNG_sCAL; -#endif -#if defined(PNG_READ_sPLT_SUPPORTED) - PNG_CONST PNG_sPLT; -#endif -#if defined(PNG_READ_sRGB_SUPPORTED) - PNG_CONST PNG_sRGB; -#endif -#if defined(PNG_READ_tEXt_SUPPORTED) - PNG_CONST PNG_tEXt; -#endif -#if defined(PNG_READ_tIME_SUPPORTED) - PNG_CONST PNG_tIME; -#endif -#if defined(PNG_READ_tRNS_SUPPORTED) - PNG_CONST PNG_tRNS; -#endif -#if defined(PNG_READ_zTXt_SUPPORTED) - PNG_CONST PNG_zTXt; -#endif -#endif /* PNG_USE_LOCAL_ARRAYS */ - - png_read_data(png_ptr, chunk_length, 4); - length = png_get_uint_31(png_ptr,chunk_length); - - png_reset_crc(png_ptr); - png_crc_read(png_ptr, png_ptr->chunk_name, 4); - - png_debug1(0, "Reading %s chunk.\n", png_ptr->chunk_name); - - if (!png_memcmp(png_ptr->chunk_name, png_IHDR, 4)) - png_handle_IHDR(png_ptr, info_ptr, length); - else if (!png_memcmp(png_ptr->chunk_name, png_IEND, 4)) - png_handle_IEND(png_ptr, info_ptr, length); -#ifdef PNG_HANDLE_AS_UNKNOWN_SUPPORTED - else if (png_handle_as_unknown(png_ptr, png_ptr->chunk_name)) - { - if (!png_memcmp(png_ptr->chunk_name, png_IDAT, 4)) - { - if ((length > 0) || (png_ptr->mode & PNG_HAVE_CHUNK_AFTER_IDAT)) - png_error(png_ptr, "Too many IDAT's found"); - } - png_handle_unknown(png_ptr, info_ptr, length); - if (!png_memcmp(png_ptr->chunk_name, png_PLTE, 4)) - png_ptr->mode |= PNG_HAVE_PLTE; - } -#endif - else if (!png_memcmp(png_ptr->chunk_name, png_IDAT, 4)) - { - /* Zero length IDATs are legal after the last IDAT has been - * read, but not after other chunks have been read. - */ - if ((length > 0) || (png_ptr->mode & PNG_HAVE_CHUNK_AFTER_IDAT)) - png_error(png_ptr, "Too many IDAT's found"); - png_crc_finish(png_ptr, length); - } - else if (!png_memcmp(png_ptr->chunk_name, png_PLTE, 4)) - png_handle_PLTE(png_ptr, info_ptr, length); -#if defined(PNG_READ_bKGD_SUPPORTED) - else if (!png_memcmp(png_ptr->chunk_name, png_bKGD, 4)) - png_handle_bKGD(png_ptr, info_ptr, length); -#endif -#if defined(PNG_READ_cHRM_SUPPORTED) - else if (!png_memcmp(png_ptr->chunk_name, png_cHRM, 4)) - png_handle_cHRM(png_ptr, info_ptr, length); -#endif -#if defined(PNG_READ_gAMA_SUPPORTED) - else if (!png_memcmp(png_ptr->chunk_name, png_gAMA, 4)) - png_handle_gAMA(png_ptr, info_ptr, length); -#endif -#if defined(PNG_READ_hIST_SUPPORTED) - else if (!png_memcmp(png_ptr->chunk_name, png_hIST, 4)) - png_handle_hIST(png_ptr, info_ptr, length); -#endif -#if defined(PNG_READ_oFFs_SUPPORTED) - else if (!png_memcmp(png_ptr->chunk_name, png_oFFs, 4)) - png_handle_oFFs(png_ptr, info_ptr, length); -#endif -#if defined(PNG_READ_pCAL_SUPPORTED) - else if (!png_memcmp(png_ptr->chunk_name, png_pCAL, 4)) - png_handle_pCAL(png_ptr, info_ptr, length); -#endif -#if defined(PNG_READ_sCAL_SUPPORTED) - else if (!png_memcmp(png_ptr->chunk_name, png_sCAL, 4)) - png_handle_sCAL(png_ptr, info_ptr, length); -#endif -#if defined(PNG_READ_pHYs_SUPPORTED) - else if (!png_memcmp(png_ptr->chunk_name, png_pHYs, 4)) - png_handle_pHYs(png_ptr, info_ptr, length); -#endif -#if defined(PNG_READ_sBIT_SUPPORTED) - else if (!png_memcmp(png_ptr->chunk_name, png_sBIT, 4)) - png_handle_sBIT(png_ptr, info_ptr, length); -#endif -#if defined(PNG_READ_sRGB_SUPPORTED) - else if (!png_memcmp(png_ptr->chunk_name, png_sRGB, 4)) - png_handle_sRGB(png_ptr, info_ptr, length); -#endif -#if defined(PNG_READ_iCCP_SUPPORTED) - else if (!png_memcmp(png_ptr->chunk_name, png_iCCP, 4)) - png_handle_iCCP(png_ptr, info_ptr, length); -#endif -#if defined(PNG_READ_sPLT_SUPPORTED) - else if (!png_memcmp(png_ptr->chunk_name, png_sPLT, 4)) - png_handle_sPLT(png_ptr, info_ptr, length); -#endif -#if defined(PNG_READ_tEXt_SUPPORTED) - else if (!png_memcmp(png_ptr->chunk_name, png_tEXt, 4)) - png_handle_tEXt(png_ptr, info_ptr, length); -#endif -#if defined(PNG_READ_tIME_SUPPORTED) - else if (!png_memcmp(png_ptr->chunk_name, png_tIME, 4)) - png_handle_tIME(png_ptr, info_ptr, length); -#endif -#if defined(PNG_READ_tRNS_SUPPORTED) - else if (!png_memcmp(png_ptr->chunk_name, png_tRNS, 4)) - png_handle_tRNS(png_ptr, info_ptr, length); -#endif -#if defined(PNG_READ_zTXt_SUPPORTED) - else if (!png_memcmp(png_ptr->chunk_name, png_zTXt, 4)) - png_handle_zTXt(png_ptr, info_ptr, length); -#endif -#if defined(PNG_READ_iTXt_SUPPORTED) - else if (!png_memcmp(png_ptr->chunk_name, png_iTXt, 4)) - png_handle_iTXt(png_ptr, info_ptr, length); -#endif - else - png_handle_unknown(png_ptr, info_ptr, length); - } while (!(png_ptr->mode & PNG_HAVE_IEND)); -} -#endif /* PNG_NO_SEQUENTIAL_READ_SUPPORTED */ - -/* free all memory used by the read */ -void PNGAPI -png_destroy_read_struct(png_structpp png_ptr_ptr, png_infopp info_ptr_ptr, - png_infopp end_info_ptr_ptr) -{ - png_structp png_ptr = NULL; - png_infop info_ptr = NULL, end_info_ptr = NULL; -#ifdef PNG_USER_MEM_SUPPORTED - png_free_ptr free_fn = NULL; - png_voidp mem_ptr = NULL; -#endif - - png_debug(1, "in png_destroy_read_struct\n"); - if (png_ptr_ptr != NULL) - { - png_ptr = *png_ptr_ptr; -#ifdef PNG_USER_MEM_SUPPORTED - free_fn = png_ptr->free_fn; - mem_ptr = png_ptr->mem_ptr; -#endif - } - - if (info_ptr_ptr != NULL) - info_ptr = *info_ptr_ptr; - - if (end_info_ptr_ptr != NULL) - end_info_ptr = *end_info_ptr_ptr; - - png_read_destroy(png_ptr, info_ptr, end_info_ptr); - - if (info_ptr != NULL) - { -#if defined(PNG_TEXT_SUPPORTED) - png_free_data(png_ptr, info_ptr, PNG_FREE_TEXT, -1); -#endif - -#ifdef PNG_USER_MEM_SUPPORTED - png_destroy_struct_2((png_voidp)info_ptr, (png_free_ptr)free_fn, - (png_voidp)mem_ptr); -#else - png_destroy_struct((png_voidp)info_ptr); -#endif - *info_ptr_ptr = NULL; - } - - if (end_info_ptr != NULL) - { -#if defined(PNG_READ_TEXT_SUPPORTED) - png_free_data(png_ptr, end_info_ptr, PNG_FREE_TEXT, -1); -#endif -#ifdef PNG_USER_MEM_SUPPORTED - png_destroy_struct_2((png_voidp)end_info_ptr, (png_free_ptr)free_fn, - (png_voidp)mem_ptr); -#else - png_destroy_struct((png_voidp)end_info_ptr); -#endif - *end_info_ptr_ptr = NULL; - } - - if (png_ptr != NULL) - { -#ifdef PNG_USER_MEM_SUPPORTED - png_destroy_struct_2((png_voidp)png_ptr, (png_free_ptr)free_fn, - (png_voidp)mem_ptr); -#else - png_destroy_struct((png_voidp)png_ptr); -#endif - *png_ptr_ptr = NULL; - } -} - -/* free all memory used by the read (old method) */ -void /* PRIVATE */ -png_read_destroy(png_structp png_ptr, png_infop info_ptr, png_infop end_info_ptr) -{ -#ifdef PNG_SETJMP_SUPPORTED - jmp_buf tmp_jmp; -#endif - png_error_ptr error_fn; - png_error_ptr warning_fn; - png_voidp error_ptr; -#ifdef PNG_USER_MEM_SUPPORTED - png_free_ptr free_fn; -#endif - - png_debug(1, "in png_read_destroy\n"); - if (info_ptr != NULL) - png_info_destroy(png_ptr, info_ptr); - - if (end_info_ptr != NULL) - png_info_destroy(png_ptr, end_info_ptr); - - png_free(png_ptr, png_ptr->zbuf); - png_free(png_ptr, png_ptr->big_row_buf); - png_free(png_ptr, png_ptr->prev_row); -#if defined(PNG_READ_DITHER_SUPPORTED) - png_free(png_ptr, png_ptr->palette_lookup); - png_free(png_ptr, png_ptr->dither_index); -#endif -#if defined(PNG_READ_GAMMA_SUPPORTED) - png_free(png_ptr, png_ptr->gamma_table); -#endif -#if defined(PNG_READ_BACKGROUND_SUPPORTED) - png_free(png_ptr, png_ptr->gamma_from_1); - png_free(png_ptr, png_ptr->gamma_to_1); -#endif -#ifdef PNG_FREE_ME_SUPPORTED - if (png_ptr->free_me & PNG_FREE_PLTE) - png_zfree(png_ptr, png_ptr->palette); - png_ptr->free_me &= ~PNG_FREE_PLTE; -#else - if (png_ptr->flags & PNG_FLAG_FREE_PLTE) - png_zfree(png_ptr, png_ptr->palette); - png_ptr->flags &= ~PNG_FLAG_FREE_PLTE; -#endif -#if defined(PNG_tRNS_SUPPORTED) || \ - defined(PNG_READ_EXPAND_SUPPORTED) || defined(PNG_READ_BACKGROUND_SUPPORTED) -#ifdef PNG_FREE_ME_SUPPORTED - if (png_ptr->free_me & PNG_FREE_TRNS) - png_free(png_ptr, png_ptr->trans); - png_ptr->free_me &= ~PNG_FREE_TRNS; -#else - if (png_ptr->flags & PNG_FLAG_FREE_TRNS) - png_free(png_ptr, png_ptr->trans); - png_ptr->flags &= ~PNG_FLAG_FREE_TRNS; -#endif -#endif -#if defined(PNG_READ_hIST_SUPPORTED) -#ifdef PNG_FREE_ME_SUPPORTED - if (png_ptr->free_me & PNG_FREE_HIST) - png_free(png_ptr, png_ptr->hist); - png_ptr->free_me &= ~PNG_FREE_HIST; -#else - if (png_ptr->flags & PNG_FLAG_FREE_HIST) - png_free(png_ptr, png_ptr->hist); - png_ptr->flags &= ~PNG_FLAG_FREE_HIST; -#endif -#endif -#if defined(PNG_READ_GAMMA_SUPPORTED) - if (png_ptr->gamma_16_table != NULL) - { - int i; - int istop = (1 << (8 - png_ptr->gamma_shift)); - for (i = 0; i < istop; i++) - { - png_free(png_ptr, png_ptr->gamma_16_table[i]); - } - png_free(png_ptr, png_ptr->gamma_16_table); - } -#if defined(PNG_READ_BACKGROUND_SUPPORTED) - if (png_ptr->gamma_16_from_1 != NULL) - { - int i; - int istop = (1 << (8 - png_ptr->gamma_shift)); - for (i = 0; i < istop; i++) - { - png_free(png_ptr, png_ptr->gamma_16_from_1[i]); - } - png_free(png_ptr, png_ptr->gamma_16_from_1); - } - if (png_ptr->gamma_16_to_1 != NULL) - { - int i; - int istop = (1 << (8 - png_ptr->gamma_shift)); - for (i = 0; i < istop; i++) - { - png_free(png_ptr, png_ptr->gamma_16_to_1[i]); - } - png_free(png_ptr, png_ptr->gamma_16_to_1); - } -#endif -#endif -#if defined(PNG_TIME_RFC1123_SUPPORTED) - png_free(png_ptr, png_ptr->time_buffer); -#endif - - inflateEnd(&png_ptr->zstream); -#ifdef PNG_PROGRESSIVE_READ_SUPPORTED - png_free(png_ptr, png_ptr->save_buffer); -#endif - -#ifdef PNG_PROGRESSIVE_READ_SUPPORTED -#ifdef PNG_TEXT_SUPPORTED - png_free(png_ptr, png_ptr->current_text); -#endif /* PNG_TEXT_SUPPORTED */ -#endif /* PNG_PROGRESSIVE_READ_SUPPORTED */ - - /* Save the important info out of the png_struct, in case it is - * being used again. - */ -#ifdef PNG_SETJMP_SUPPORTED - png_memcpy(tmp_jmp, png_ptr->jmpbuf, png_sizeof (jmp_buf)); -#endif - - error_fn = png_ptr->error_fn; - warning_fn = png_ptr->warning_fn; - error_ptr = png_ptr->error_ptr; -#ifdef PNG_USER_MEM_SUPPORTED - free_fn = png_ptr->free_fn; -#endif - - png_memset(png_ptr, 0, png_sizeof (png_struct)); - - png_ptr->error_fn = error_fn; - png_ptr->warning_fn = warning_fn; - png_ptr->error_ptr = error_ptr; -#ifdef PNG_USER_MEM_SUPPORTED - png_ptr->free_fn = free_fn; -#endif - -#ifdef PNG_SETJMP_SUPPORTED - png_memcpy(png_ptr->jmpbuf, tmp_jmp, png_sizeof (jmp_buf)); -#endif - -} - -void PNGAPI -png_set_read_status_fn(png_structp png_ptr, png_read_status_ptr read_row_fn) -{ - if(png_ptr == NULL) return; - png_ptr->read_row_fn = read_row_fn; -} - - -#ifndef PNG_NO_SEQUENTIAL_READ_SUPPORTED -#if defined(PNG_INFO_IMAGE_SUPPORTED) -void PNGAPI -png_read_png(png_structp png_ptr, png_infop info_ptr, - int transforms, - voidp params) -{ - int row; - - if(png_ptr == NULL) return; -#if defined(PNG_READ_INVERT_ALPHA_SUPPORTED) - /* invert the alpha channel from opacity to transparency - */ - if (transforms & PNG_TRANSFORM_INVERT_ALPHA) - png_set_invert_alpha(png_ptr); -#endif - - /* png_read_info() gives us all of the information from the - * PNG file before the first IDAT (image data chunk). - */ - png_read_info(png_ptr, info_ptr); - if (info_ptr->height > PNG_UINT_32_MAX/png_sizeof(png_bytep)) - png_error(png_ptr,"Image is too high to process with png_read_png()"); - - /* -------------- image transformations start here ------------------- */ - -#if defined(PNG_READ_16_TO_8_SUPPORTED) - /* tell libpng to strip 16 bit/color files down to 8 bits per color - */ - if (transforms & PNG_TRANSFORM_STRIP_16) - png_set_strip_16(png_ptr); -#endif - -#if defined(PNG_READ_STRIP_ALPHA_SUPPORTED) - /* Strip alpha bytes from the input data without combining with - * the background (not recommended). - */ - if (transforms & PNG_TRANSFORM_STRIP_ALPHA) - png_set_strip_alpha(png_ptr); -#endif - -#if defined(PNG_READ_PACK_SUPPORTED) && !defined(PNG_READ_EXPAND_SUPPORTED) - /* Extract multiple pixels with bit depths of 1, 2, or 4 from a single - * byte into separate bytes (useful for paletted and grayscale images). - */ - if (transforms & PNG_TRANSFORM_PACKING) - png_set_packing(png_ptr); -#endif - -#if defined(PNG_READ_PACKSWAP_SUPPORTED) - /* Change the order of packed pixels to least significant bit first - * (not useful if you are using png_set_packing). - */ - if (transforms & PNG_TRANSFORM_PACKSWAP) - png_set_packswap(png_ptr); -#endif - -#if defined(PNG_READ_EXPAND_SUPPORTED) - /* Expand paletted colors into true RGB triplets - * Expand grayscale images to full 8 bits from 1, 2, or 4 bits/pixel - * Expand paletted or RGB images with transparency to full alpha - * channels so the data will be available as RGBA quartets. - */ - if (transforms & PNG_TRANSFORM_EXPAND) - if ((png_ptr->bit_depth < 8) || - (png_ptr->color_type == PNG_COLOR_TYPE_PALETTE) || - (png_get_valid(png_ptr, info_ptr, PNG_INFO_tRNS))) - png_set_expand(png_ptr); -#endif - - /* We don't handle background color or gamma transformation or dithering. - */ - -#if defined(PNG_READ_INVERT_SUPPORTED) - /* invert monochrome files to have 0 as white and 1 as black - */ - if (transforms & PNG_TRANSFORM_INVERT_MONO) - png_set_invert_mono(png_ptr); -#endif - -#if defined(PNG_READ_SHIFT_SUPPORTED) - /* If you want to shift the pixel values from the range [0,255] or - * [0,65535] to the original [0,7] or [0,31], or whatever range the - * colors were originally in: - */ - if ((transforms & PNG_TRANSFORM_SHIFT) - && png_get_valid(png_ptr, info_ptr, PNG_INFO_sBIT)) - { - png_color_8p sig_bit; - - png_get_sBIT(png_ptr, info_ptr, &sig_bit); - png_set_shift(png_ptr, sig_bit); - } -#endif - -#if defined(PNG_READ_BGR_SUPPORTED) - /* flip the RGB pixels to BGR (or RGBA to BGRA) - */ - if (transforms & PNG_TRANSFORM_BGR) - png_set_bgr(png_ptr); -#endif - -#if defined(PNG_READ_SWAP_ALPHA_SUPPORTED) - /* swap the RGBA or GA data to ARGB or AG (or BGRA to ABGR) - */ - if (transforms & PNG_TRANSFORM_SWAP_ALPHA) - png_set_swap_alpha(png_ptr); -#endif - -#if defined(PNG_READ_SWAP_SUPPORTED) - /* swap bytes of 16 bit files to least significant byte first - */ - if (transforms & PNG_TRANSFORM_SWAP_ENDIAN) - png_set_swap(png_ptr); -#endif - - /* We don't handle adding filler bytes */ - - /* Optional call to gamma correct and add the background to the palette - * and update info structure. REQUIRED if you are expecting libpng to - * update the palette for you (i.e., you selected such a transform above). - */ - png_read_update_info(png_ptr, info_ptr); - - /* -------------- image transformations end here ------------------- */ - -#ifdef PNG_FREE_ME_SUPPORTED - png_free_data(png_ptr, info_ptr, PNG_FREE_ROWS, 0); -#endif - if(info_ptr->row_pointers == NULL) - { - info_ptr->row_pointers = (png_bytepp)png_malloc(png_ptr, - info_ptr->height * png_sizeof(png_bytep)); -#ifdef PNG_FREE_ME_SUPPORTED - info_ptr->free_me |= PNG_FREE_ROWS; -#endif - for (row = 0; row < (int)info_ptr->height; row++) - { - info_ptr->row_pointers[row] = (png_bytep)png_malloc(png_ptr, - png_get_rowbytes(png_ptr, info_ptr)); - } - } - - png_read_image(png_ptr, info_ptr->row_pointers); - info_ptr->valid |= PNG_INFO_IDAT; - - /* read rest of file, and get additional chunks in info_ptr - REQUIRED */ - png_read_end(png_ptr, info_ptr); - - transforms = transforms; /* quiet compiler warnings */ - params = params; - -} -#endif /* PNG_INFO_IMAGE_SUPPORTED */ -#endif /* PNG_NO_SEQUENTIAL_READ_SUPPORTED */ -#endif /* PNG_READ_SUPPORTED */ diff --git a/src/3rdParty/CxImage/png/pngrio.c b/src/3rdParty/CxImage/png/pngrio.c deleted file mode 100644 index 7d2522f1f8..0000000000 --- a/src/3rdParty/CxImage/png/pngrio.c +++ /dev/null @@ -1,167 +0,0 @@ - -/* pngrio.c - functions for data input - * - * Last changed in libpng 1.2.13 November 13, 2006 - * For conditions of distribution and use, see copyright notice in png.h - * Copyright (c) 1998-2006 Glenn Randers-Pehrson - * (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger) - * (Version 0.88 Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.) - * - * This file provides a location for all input. Users who need - * special handling are expected to write a function that has the same - * arguments as this and performs a similar function, but that possibly - * has a different input method. Note that you shouldn't change this - * function, but rather write a replacement function and then make - * libpng use it at run time with png_set_read_fn(...). - */ - -#define PNG_INTERNAL -#include "png.h" - -#if defined(PNG_READ_SUPPORTED) - -/* Read the data from whatever input you are using. The default routine - reads from a file pointer. Note that this routine sometimes gets called - with very small lengths, so you should implement some kind of simple - buffering if you are using unbuffered reads. This should never be asked - to read more then 64K on a 16 bit machine. */ -void /* PRIVATE */ -png_read_data(png_structp png_ptr, png_bytep data, png_size_t length) -{ - png_debug1(4,"reading %d bytes\n", (int)length); - if (png_ptr->read_data_fn != NULL) - (*(png_ptr->read_data_fn))(png_ptr, data, length); - else - png_error(png_ptr, "Call to NULL read function"); -} - -#if !defined(PNG_NO_STDIO) -/* This is the function that does the actual reading of data. If you are - not reading from a standard C stream, you should create a replacement - read_data function and use it at run time with png_set_read_fn(), rather - than changing the library. */ -#ifndef USE_FAR_KEYWORD -void PNGAPI -png_default_read_data(png_structp png_ptr, png_bytep data, png_size_t length) -{ - png_size_t check; - - if(png_ptr == NULL) return; - /* fread() returns 0 on error, so it is OK to store this in a png_size_t - * instead of an int, which is what fread() actually returns. - */ -#if defined(_WIN32_WCE) - if ( !ReadFile((HANDLE)(png_ptr->io_ptr), data, length, &check, NULL) ) - check = 0; -#else - check = (png_size_t)fread(data, (png_size_t)1, length, - (png_FILE_p)png_ptr->io_ptr); -#endif - - if (check != length) - png_error(png_ptr, "Read Error"); -} -#else -/* this is the model-independent version. Since the standard I/O library - can't handle far buffers in the medium and small models, we have to copy - the data. -*/ - -#define NEAR_BUF_SIZE 1024 -#define MIN(a,b) (a <= b ? a : b) - -static void PNGAPI -png_default_read_data(png_structp png_ptr, png_bytep data, png_size_t length) -{ - int check; - png_byte *n_data; - png_FILE_p io_ptr; - - if(png_ptr == NULL) return; - /* Check if data really is near. If so, use usual code. */ - n_data = (png_byte *)CVT_PTR_NOCHECK(data); - io_ptr = (png_FILE_p)CVT_PTR(png_ptr->io_ptr); - if ((png_bytep)n_data == data) - { -#if defined(_WIN32_WCE) - if ( !ReadFile((HANDLE)(png_ptr->io_ptr), data, length, &check, NULL) ) - check = 0; -#else - check = fread(n_data, 1, length, io_ptr); -#endif - } - else - { - png_byte buf[NEAR_BUF_SIZE]; - png_size_t read, remaining, err; - check = 0; - remaining = length; - do - { - read = MIN(NEAR_BUF_SIZE, remaining); -#if defined(_WIN32_WCE) - if ( !ReadFile((HANDLE)(io_ptr), buf, read, &err, NULL) ) - err = 0; -#else - err = fread(buf, (png_size_t)1, read, io_ptr); -#endif - png_memcpy(data, buf, read); /* copy far buffer to near buffer */ - if(err != read) - break; - else - check += err; - data += read; - remaining -= read; - } - while (remaining != 0); - } - if ((png_uint_32)check != (png_uint_32)length) - png_error(png_ptr, "read Error"); -} -#endif -#endif - -/* This function allows the application to supply a new input function - for libpng if standard C streams aren't being used. - - This function takes as its arguments: - png_ptr - pointer to a png input data structure - io_ptr - pointer to user supplied structure containing info about - the input functions. May be NULL. - read_data_fn - pointer to a new input function that takes as its - arguments a pointer to a png_struct, a pointer to - a location where input data can be stored, and a 32-bit - unsigned int that is the number of bytes to be read. - To exit and output any fatal error messages the new write - function should call png_error(png_ptr, "Error msg"). */ -void PNGAPI -png_set_read_fn(png_structp png_ptr, png_voidp io_ptr, - png_rw_ptr read_data_fn) -{ - if(png_ptr == NULL) return; - png_ptr->io_ptr = io_ptr; - -#if !defined(PNG_NO_STDIO) - if (read_data_fn != NULL) - png_ptr->read_data_fn = read_data_fn; - else - png_ptr->read_data_fn = png_default_read_data; -#else - png_ptr->read_data_fn = read_data_fn; -#endif - - /* It is an error to write to a read device */ - if (png_ptr->write_data_fn != NULL) - { - png_ptr->write_data_fn = NULL; - png_warning(png_ptr, - "It's an error to set both read_data_fn and write_data_fn in the "); - png_warning(png_ptr, - "same structure. Resetting write_data_fn to NULL."); - } - -#if defined(PNG_WRITE_FLUSH_SUPPORTED) - png_ptr->output_flush_fn = NULL; -#endif -} -#endif /* PNG_READ_SUPPORTED */ diff --git a/src/3rdParty/CxImage/png/pngrtran.c b/src/3rdParty/CxImage/png/pngrtran.c deleted file mode 100644 index cda392154e..0000000000 --- a/src/3rdParty/CxImage/png/pngrtran.c +++ /dev/null @@ -1,4284 +0,0 @@ - -/* pngrtran.c - transforms the data in a row for PNG readers - * - * Last changed in libpng 1.2.22 [October 13, 2007] - * For conditions of distribution and use, see copyright notice in png.h - * Copyright (c) 1998-2007 Glenn Randers-Pehrson - * (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger) - * (Version 0.88 Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.) - * - * This file contains functions optionally called by an application - * in order to tell libpng how to handle data when reading a PNG. - * Transformations that are used in both reading and writing are - * in pngtrans.c. - */ - -#define PNG_INTERNAL -#include "png.h" - -#if defined(PNG_READ_SUPPORTED) - -/* Set the action on getting a CRC error for an ancillary or critical chunk. */ -void PNGAPI -png_set_crc_action(png_structp png_ptr, int crit_action, int ancil_action) -{ - png_debug(1, "in png_set_crc_action\n"); - /* Tell libpng how we react to CRC errors in critical chunks */ - if(png_ptr == NULL) return; - switch (crit_action) - { - case PNG_CRC_NO_CHANGE: /* leave setting as is */ - break; - case PNG_CRC_WARN_USE: /* warn/use data */ - png_ptr->flags &= ~PNG_FLAG_CRC_CRITICAL_MASK; - png_ptr->flags |= PNG_FLAG_CRC_CRITICAL_USE; - break; - case PNG_CRC_QUIET_USE: /* quiet/use data */ - png_ptr->flags &= ~PNG_FLAG_CRC_CRITICAL_MASK; - png_ptr->flags |= PNG_FLAG_CRC_CRITICAL_USE | - PNG_FLAG_CRC_CRITICAL_IGNORE; - break; - case PNG_CRC_WARN_DISCARD: /* not a valid action for critical data */ - png_warning(png_ptr, "Can't discard critical data on CRC error."); - case PNG_CRC_ERROR_QUIT: /* error/quit */ - case PNG_CRC_DEFAULT: - default: - png_ptr->flags &= ~PNG_FLAG_CRC_CRITICAL_MASK; - break; - } - - switch (ancil_action) - { - case PNG_CRC_NO_CHANGE: /* leave setting as is */ - break; - case PNG_CRC_WARN_USE: /* warn/use data */ - png_ptr->flags &= ~PNG_FLAG_CRC_ANCILLARY_MASK; - png_ptr->flags |= PNG_FLAG_CRC_ANCILLARY_USE; - break; - case PNG_CRC_QUIET_USE: /* quiet/use data */ - png_ptr->flags &= ~PNG_FLAG_CRC_ANCILLARY_MASK; - png_ptr->flags |= PNG_FLAG_CRC_ANCILLARY_USE | - PNG_FLAG_CRC_ANCILLARY_NOWARN; - break; - case PNG_CRC_ERROR_QUIT: /* error/quit */ - png_ptr->flags &= ~PNG_FLAG_CRC_ANCILLARY_MASK; - png_ptr->flags |= PNG_FLAG_CRC_ANCILLARY_NOWARN; - break; - case PNG_CRC_WARN_DISCARD: /* warn/discard data */ - case PNG_CRC_DEFAULT: - default: - png_ptr->flags &= ~PNG_FLAG_CRC_ANCILLARY_MASK; - break; - } -} - -#if defined(PNG_READ_BACKGROUND_SUPPORTED) && \ - defined(PNG_FLOATING_POINT_SUPPORTED) -/* handle alpha and tRNS via a background color */ -void PNGAPI -png_set_background(png_structp png_ptr, - png_color_16p background_color, int background_gamma_code, - int need_expand, double background_gamma) -{ - png_debug(1, "in png_set_background\n"); - if(png_ptr == NULL) return; - if (background_gamma_code == PNG_BACKGROUND_GAMMA_UNKNOWN) - { - png_warning(png_ptr, "Application must supply a known background gamma"); - return; - } - - png_ptr->transformations |= PNG_BACKGROUND; - png_memcpy(&(png_ptr->background), background_color, - png_sizeof(png_color_16)); - png_ptr->background_gamma = (float)background_gamma; - png_ptr->background_gamma_type = (png_byte)(background_gamma_code); - png_ptr->transformations |= (need_expand ? PNG_BACKGROUND_EXPAND : 0); -} -#endif - -#if defined(PNG_READ_16_TO_8_SUPPORTED) -/* strip 16 bit depth files to 8 bit depth */ -void PNGAPI -png_set_strip_16(png_structp png_ptr) -{ - png_debug(1, "in png_set_strip_16\n"); - if(png_ptr == NULL) return; - png_ptr->transformations |= PNG_16_TO_8; -} -#endif - -#if defined(PNG_READ_STRIP_ALPHA_SUPPORTED) -void PNGAPI -png_set_strip_alpha(png_structp png_ptr) -{ - png_debug(1, "in png_set_strip_alpha\n"); - if(png_ptr == NULL) return; - png_ptr->flags |= PNG_FLAG_STRIP_ALPHA; -} -#endif - -#if defined(PNG_READ_DITHER_SUPPORTED) -/* Dither file to 8 bit. Supply a palette, the current number - * of elements in the palette, the maximum number of elements - * allowed, and a histogram if possible. If the current number - * of colors is greater then the maximum number, the palette will be - * modified to fit in the maximum number. "full_dither" indicates - * whether we need a dithering cube set up for RGB images, or if we - * simply are reducing the number of colors in a paletted image. - */ - -typedef struct png_dsort_struct -{ - struct png_dsort_struct FAR * next; - png_byte left; - png_byte right; -} png_dsort; -typedef png_dsort FAR * png_dsortp; -typedef png_dsort FAR * FAR * png_dsortpp; - -void PNGAPI -png_set_dither(png_structp png_ptr, png_colorp palette, - int num_palette, int maximum_colors, png_uint_16p histogram, - int full_dither) -{ - png_debug(1, "in png_set_dither\n"); - if(png_ptr == NULL) return; - png_ptr->transformations |= PNG_DITHER; - - if (!full_dither) - { - int i; - - png_ptr->dither_index = (png_bytep)png_malloc(png_ptr, - (png_uint_32)(num_palette * png_sizeof (png_byte))); - for (i = 0; i < num_palette; i++) - png_ptr->dither_index[i] = (png_byte)i; - } - - if (num_palette > maximum_colors) - { - if (histogram != NULL) - { - /* This is easy enough, just throw out the least used colors. - Perhaps not the best solution, but good enough. */ - - int i; - - /* initialize an array to sort colors */ - png_ptr->dither_sort = (png_bytep)png_malloc(png_ptr, - (png_uint_32)(num_palette * png_sizeof (png_byte))); - - /* initialize the dither_sort array */ - for (i = 0; i < num_palette; i++) - png_ptr->dither_sort[i] = (png_byte)i; - - /* Find the least used palette entries by starting a - bubble sort, and running it until we have sorted - out enough colors. Note that we don't care about - sorting all the colors, just finding which are - least used. */ - - for (i = num_palette - 1; i >= maximum_colors; i--) - { - int done; /* to stop early if the list is pre-sorted */ - int j; - - done = 1; - for (j = 0; j < i; j++) - { - if (histogram[png_ptr->dither_sort[j]] - < histogram[png_ptr->dither_sort[j + 1]]) - { - png_byte t; - - t = png_ptr->dither_sort[j]; - png_ptr->dither_sort[j] = png_ptr->dither_sort[j + 1]; - png_ptr->dither_sort[j + 1] = t; - done = 0; - } - } - if (done) - break; - } - - /* swap the palette around, and set up a table, if necessary */ - if (full_dither) - { - int j = num_palette; - - /* put all the useful colors within the max, but don't - move the others */ - for (i = 0; i < maximum_colors; i++) - { - if ((int)png_ptr->dither_sort[i] >= maximum_colors) - { - do - j--; - while ((int)png_ptr->dither_sort[j] >= maximum_colors); - palette[i] = palette[j]; - } - } - } - else - { - int j = num_palette; - - /* move all the used colors inside the max limit, and - develop a translation table */ - for (i = 0; i < maximum_colors; i++) - { - /* only move the colors we need to */ - if ((int)png_ptr->dither_sort[i] >= maximum_colors) - { - png_color tmp_color; - - do - j--; - while ((int)png_ptr->dither_sort[j] >= maximum_colors); - - tmp_color = palette[j]; - palette[j] = palette[i]; - palette[i] = tmp_color; - /* indicate where the color went */ - png_ptr->dither_index[j] = (png_byte)i; - png_ptr->dither_index[i] = (png_byte)j; - } - } - - /* find closest color for those colors we are not using */ - for (i = 0; i < num_palette; i++) - { - if ((int)png_ptr->dither_index[i] >= maximum_colors) - { - int min_d, k, min_k, d_index; - - /* find the closest color to one we threw out */ - d_index = png_ptr->dither_index[i]; - min_d = PNG_COLOR_DIST(palette[d_index], palette[0]); - for (k = 1, min_k = 0; k < maximum_colors; k++) - { - int d; - - d = PNG_COLOR_DIST(palette[d_index], palette[k]); - - if (d < min_d) - { - min_d = d; - min_k = k; - } - } - /* point to closest color */ - png_ptr->dither_index[i] = (png_byte)min_k; - } - } - } - png_free(png_ptr, png_ptr->dither_sort); - png_ptr->dither_sort=NULL; - } - else - { - /* This is much harder to do simply (and quickly). Perhaps - we need to go through a median cut routine, but those - don't always behave themselves with only a few colors - as input. So we will just find the closest two colors, - and throw out one of them (chosen somewhat randomly). - [We don't understand this at all, so if someone wants to - work on improving it, be our guest - AED, GRP] - */ - int i; - int max_d; - int num_new_palette; - png_dsortp t; - png_dsortpp hash; - - t=NULL; - - /* initialize palette index arrays */ - png_ptr->index_to_palette = (png_bytep)png_malloc(png_ptr, - (png_uint_32)(num_palette * png_sizeof (png_byte))); - png_ptr->palette_to_index = (png_bytep)png_malloc(png_ptr, - (png_uint_32)(num_palette * png_sizeof (png_byte))); - - /* initialize the sort array */ - for (i = 0; i < num_palette; i++) - { - png_ptr->index_to_palette[i] = (png_byte)i; - png_ptr->palette_to_index[i] = (png_byte)i; - } - - hash = (png_dsortpp)png_malloc(png_ptr, (png_uint_32)(769 * - png_sizeof (png_dsortp))); - for (i = 0; i < 769; i++) - hash[i] = NULL; -/* png_memset(hash, 0, 769 * png_sizeof (png_dsortp)); */ - - num_new_palette = num_palette; - - /* initial wild guess at how far apart the farthest pixel - pair we will be eliminating will be. Larger - numbers mean more areas will be allocated, Smaller - numbers run the risk of not saving enough data, and - having to do this all over again. - - I have not done extensive checking on this number. - */ - max_d = 96; - - while (num_new_palette > maximum_colors) - { - for (i = 0; i < num_new_palette - 1; i++) - { - int j; - - for (j = i + 1; j < num_new_palette; j++) - { - int d; - - d = PNG_COLOR_DIST(palette[i], palette[j]); - - if (d <= max_d) - { - - t = (png_dsortp)png_malloc_warn(png_ptr, - (png_uint_32)(png_sizeof(png_dsort))); - if (t == NULL) - break; - t->next = hash[d]; - t->left = (png_byte)i; - t->right = (png_byte)j; - hash[d] = t; - } - } - if (t == NULL) - break; - } - - if (t != NULL) - for (i = 0; i <= max_d; i++) - { - if (hash[i] != NULL) - { - png_dsortp p; - - for (p = hash[i]; p; p = p->next) - { - if ((int)png_ptr->index_to_palette[p->left] - < num_new_palette && - (int)png_ptr->index_to_palette[p->right] - < num_new_palette) - { - int j, next_j; - - if (num_new_palette & 0x01) - { - j = p->left; - next_j = p->right; - } - else - { - j = p->right; - next_j = p->left; - } - - num_new_palette--; - palette[png_ptr->index_to_palette[j]] - = palette[num_new_palette]; - if (!full_dither) - { - int k; - - for (k = 0; k < num_palette; k++) - { - if (png_ptr->dither_index[k] == - png_ptr->index_to_palette[j]) - png_ptr->dither_index[k] = - png_ptr->index_to_palette[next_j]; - if ((int)png_ptr->dither_index[k] == - num_new_palette) - png_ptr->dither_index[k] = - png_ptr->index_to_palette[j]; - } - } - - png_ptr->index_to_palette[png_ptr->palette_to_index - [num_new_palette]] = png_ptr->index_to_palette[j]; - png_ptr->palette_to_index[png_ptr->index_to_palette[j]] - = png_ptr->palette_to_index[num_new_palette]; - - png_ptr->index_to_palette[j] = (png_byte)num_new_palette; - png_ptr->palette_to_index[num_new_palette] = (png_byte)j; - } - if (num_new_palette <= maximum_colors) - break; - } - if (num_new_palette <= maximum_colors) - break; - } - } - - for (i = 0; i < 769; i++) - { - if (hash[i] != NULL) - { - png_dsortp p = hash[i]; - while (p) - { - t = p->next; - png_free(png_ptr, p); - p = t; - } - } - hash[i] = 0; - } - max_d += 96; - } - png_free(png_ptr, hash); - png_free(png_ptr, png_ptr->palette_to_index); - png_free(png_ptr, png_ptr->index_to_palette); - png_ptr->palette_to_index=NULL; - png_ptr->index_to_palette=NULL; - } - num_palette = maximum_colors; - } - if (png_ptr->palette == NULL) - { - png_ptr->palette = palette; - } - png_ptr->num_palette = (png_uint_16)num_palette; - - if (full_dither) - { - int i; - png_bytep distance; - int total_bits = PNG_DITHER_RED_BITS + PNG_DITHER_GREEN_BITS + - PNG_DITHER_BLUE_BITS; - int num_red = (1 << PNG_DITHER_RED_BITS); - int num_green = (1 << PNG_DITHER_GREEN_BITS); - int num_blue = (1 << PNG_DITHER_BLUE_BITS); - png_size_t num_entries = ((png_size_t)1 << total_bits); - - png_ptr->palette_lookup = (png_bytep )png_malloc(png_ptr, - (png_uint_32)(num_entries * png_sizeof (png_byte))); - - png_memset(png_ptr->palette_lookup, 0, num_entries * - png_sizeof (png_byte)); - - distance = (png_bytep)png_malloc(png_ptr, (png_uint_32)(num_entries * - png_sizeof(png_byte))); - - png_memset(distance, 0xff, num_entries * png_sizeof(png_byte)); - - for (i = 0; i < num_palette; i++) - { - int ir, ig, ib; - int r = (palette[i].red >> (8 - PNG_DITHER_RED_BITS)); - int g = (palette[i].green >> (8 - PNG_DITHER_GREEN_BITS)); - int b = (palette[i].blue >> (8 - PNG_DITHER_BLUE_BITS)); - - for (ir = 0; ir < num_red; ir++) - { - /* int dr = abs(ir - r); */ - int dr = ((ir > r) ? ir - r : r - ir); - int index_r = (ir << (PNG_DITHER_BLUE_BITS + PNG_DITHER_GREEN_BITS)); - - for (ig = 0; ig < num_green; ig++) - { - /* int dg = abs(ig - g); */ - int dg = ((ig > g) ? ig - g : g - ig); - int dt = dr + dg; - int dm = ((dr > dg) ? dr : dg); - int index_g = index_r | (ig << PNG_DITHER_BLUE_BITS); - - for (ib = 0; ib < num_blue; ib++) - { - int d_index = index_g | ib; - /* int db = abs(ib - b); */ - int db = ((ib > b) ? ib - b : b - ib); - int dmax = ((dm > db) ? dm : db); - int d = dmax + dt + db; - - if (d < (int)distance[d_index]) - { - distance[d_index] = (png_byte)d; - png_ptr->palette_lookup[d_index] = (png_byte)i; - } - } - } - } - } - - png_free(png_ptr, distance); - } -} -#endif - -#if defined(PNG_READ_GAMMA_SUPPORTED) && defined(PNG_FLOATING_POINT_SUPPORTED) -/* Transform the image from the file_gamma to the screen_gamma. We - * only do transformations on images where the file_gamma and screen_gamma - * are not close reciprocals, otherwise it slows things down slightly, and - * also needlessly introduces small errors. - * - * We will turn off gamma transformation later if no semitransparent entries - * are present in the tRNS array for palette images. We can't do it here - * because we don't necessarily have the tRNS chunk yet. - */ -void PNGAPI -png_set_gamma(png_structp png_ptr, double scrn_gamma, double file_gamma) -{ - png_debug(1, "in png_set_gamma\n"); - if(png_ptr == NULL) return; - if ((fabs(scrn_gamma * file_gamma - 1.0) > PNG_GAMMA_THRESHOLD) || - (png_ptr->color_type & PNG_COLOR_MASK_ALPHA) || - (png_ptr->color_type == PNG_COLOR_TYPE_PALETTE)) - png_ptr->transformations |= PNG_GAMMA; - png_ptr->gamma = (float)file_gamma; - png_ptr->screen_gamma = (float)scrn_gamma; -} -#endif - -#if defined(PNG_READ_EXPAND_SUPPORTED) -/* Expand paletted images to RGB, expand grayscale images of - * less than 8-bit depth to 8-bit depth, and expand tRNS chunks - * to alpha channels. - */ -void PNGAPI -png_set_expand(png_structp png_ptr) -{ - png_debug(1, "in png_set_expand\n"); - if(png_ptr == NULL) return; - png_ptr->transformations |= (PNG_EXPAND | PNG_EXPAND_tRNS); -#ifdef PNG_WARN_UNINITIALIZED_ROW - png_ptr->flags &= ~PNG_FLAG_ROW_INIT; -#endif -} - -/* GRR 19990627: the following three functions currently are identical - * to png_set_expand(). However, it is entirely reasonable that someone - * might wish to expand an indexed image to RGB but *not* expand a single, - * fully transparent palette entry to a full alpha channel--perhaps instead - * convert tRNS to the grayscale/RGB format (16-bit RGB value), or replace - * the transparent color with a particular RGB value, or drop tRNS entirely. - * IOW, a future version of the library may make the transformations flag - * a bit more fine-grained, with separate bits for each of these three - * functions. - * - * More to the point, these functions make it obvious what libpng will be - * doing, whereas "expand" can (and does) mean any number of things. - * - * GRP 20060307: In libpng-1.4.0, png_set_gray_1_2_4_to_8() was modified - * to expand only the sample depth but not to expand the tRNS to alpha. - */ - -/* Expand paletted images to RGB. */ -void PNGAPI -png_set_palette_to_rgb(png_structp png_ptr) -{ - png_debug(1, "in png_set_palette_to_rgb\n"); - if(png_ptr == NULL) return; - png_ptr->transformations |= (PNG_EXPAND | PNG_EXPAND_tRNS); -#ifdef PNG_WARN_UNINITIALIZED_ROW - png_ptr->flags &= ~PNG_FLAG_ROW_INIT; -#endif -} - -#if !defined(PNG_1_0_X) -/* Expand grayscale images of less than 8-bit depth to 8 bits. */ -void PNGAPI -png_set_expand_gray_1_2_4_to_8(png_structp png_ptr) -{ - png_debug(1, "in png_set_expand_gray_1_2_4_to_8\n"); - if(png_ptr == NULL) return; - png_ptr->transformations |= PNG_EXPAND; -#ifdef PNG_WARN_UNINITIALIZED_ROW - png_ptr->flags &= ~PNG_FLAG_ROW_INIT; -#endif -} -#endif - -#if defined(PNG_1_0_X) || defined(PNG_1_2_X) -/* Expand grayscale images of less than 8-bit depth to 8 bits. */ -/* Deprecated as of libpng-1.2.9 */ -void PNGAPI -png_set_gray_1_2_4_to_8(png_structp png_ptr) -{ - png_debug(1, "in png_set_gray_1_2_4_to_8\n"); - if(png_ptr == NULL) return; - png_ptr->transformations |= (PNG_EXPAND | PNG_EXPAND_tRNS); -} -#endif - - -/* Expand tRNS chunks to alpha channels. */ -void PNGAPI -png_set_tRNS_to_alpha(png_structp png_ptr) -{ - png_debug(1, "in png_set_tRNS_to_alpha\n"); - png_ptr->transformations |= (PNG_EXPAND | PNG_EXPAND_tRNS); -#ifdef PNG_WARN_UNINITIALIZED_ROW - png_ptr->flags &= ~PNG_FLAG_ROW_INIT; -#endif -} -#endif /* defined(PNG_READ_EXPAND_SUPPORTED) */ - -#if defined(PNG_READ_GRAY_TO_RGB_SUPPORTED) -void PNGAPI -png_set_gray_to_rgb(png_structp png_ptr) -{ - png_debug(1, "in png_set_gray_to_rgb\n"); - png_ptr->transformations |= PNG_GRAY_TO_RGB; -#ifdef PNG_WARN_UNINITIALIZED_ROW - png_ptr->flags &= ~PNG_FLAG_ROW_INIT; -#endif -} -#endif - -#if defined(PNG_READ_RGB_TO_GRAY_SUPPORTED) -#if defined(PNG_FLOATING_POINT_SUPPORTED) -/* Convert a RGB image to a grayscale of the same width. This allows us, - * for example, to convert a 24 bpp RGB image into an 8 bpp grayscale image. - */ - -void PNGAPI -png_set_rgb_to_gray(png_structp png_ptr, int error_action, double red, - double green) -{ - int red_fixed = (int)((float)red*100000.0 + 0.5); - int green_fixed = (int)((float)green*100000.0 + 0.5); - if(png_ptr == NULL) return; - png_set_rgb_to_gray_fixed(png_ptr, error_action, red_fixed, green_fixed); -} -#endif - -void PNGAPI -png_set_rgb_to_gray_fixed(png_structp png_ptr, int error_action, - png_fixed_point red, png_fixed_point green) -{ - png_debug(1, "in png_set_rgb_to_gray\n"); - if(png_ptr == NULL) return; - switch(error_action) - { - case 1: png_ptr->transformations |= PNG_RGB_TO_GRAY; - break; - case 2: png_ptr->transformations |= PNG_RGB_TO_GRAY_WARN; - break; - case 3: png_ptr->transformations |= PNG_RGB_TO_GRAY_ERR; - } - if (png_ptr->color_type == PNG_COLOR_TYPE_PALETTE) -#if defined(PNG_READ_EXPAND_SUPPORTED) - png_ptr->transformations |= PNG_EXPAND; -#else - { - png_warning(png_ptr, "Cannot do RGB_TO_GRAY without EXPAND_SUPPORTED."); - png_ptr->transformations &= ~PNG_RGB_TO_GRAY; - } -#endif - { - png_uint_16 red_int, green_int; - if(red < 0 || green < 0) - { - red_int = 6968; /* .212671 * 32768 + .5 */ - green_int = 23434; /* .715160 * 32768 + .5 */ - } - else if(red + green < 100000L) - { - red_int = (png_uint_16)(((png_uint_32)red*32768L)/100000L); - green_int = (png_uint_16)(((png_uint_32)green*32768L)/100000L); - } - else - { - png_warning(png_ptr, "ignoring out of range rgb_to_gray coefficients"); - red_int = 6968; - green_int = 23434; - } - png_ptr->rgb_to_gray_red_coeff = red_int; - png_ptr->rgb_to_gray_green_coeff = green_int; - png_ptr->rgb_to_gray_blue_coeff = (png_uint_16)(32768-red_int-green_int); - } -} -#endif - -#if defined(PNG_READ_USER_TRANSFORM_SUPPORTED) || \ - defined(PNG_WRITE_USER_TRANSFORM_SUPPORTED) || \ - defined(PNG_LEGACY_SUPPORTED) -void PNGAPI -png_set_read_user_transform_fn(png_structp png_ptr, png_user_transform_ptr - read_user_transform_fn) -{ - png_debug(1, "in png_set_read_user_transform_fn\n"); - if(png_ptr == NULL) return; -#if defined(PNG_READ_USER_TRANSFORM_SUPPORTED) - png_ptr->transformations |= PNG_USER_TRANSFORM; - png_ptr->read_user_transform_fn = read_user_transform_fn; -#endif -#ifdef PNG_LEGACY_SUPPORTED - if(read_user_transform_fn) - png_warning(png_ptr, - "This version of libpng does not support user transforms"); -#endif -} -#endif - -/* Initialize everything needed for the read. This includes modifying - * the palette. - */ -void /* PRIVATE */ -png_init_read_transformations(png_structp png_ptr) -{ - png_debug(1, "in png_init_read_transformations\n"); -#if defined(PNG_USELESS_TESTS_SUPPORTED) - if(png_ptr != NULL) -#endif - { -#if defined(PNG_READ_BACKGROUND_SUPPORTED) || defined(PNG_READ_SHIFT_SUPPORTED) \ - || defined(PNG_READ_GAMMA_SUPPORTED) - int color_type = png_ptr->color_type; -#endif - -#if defined(PNG_READ_EXPAND_SUPPORTED) && defined(PNG_READ_BACKGROUND_SUPPORTED) - -#if defined(PNG_READ_GRAY_TO_RGB_SUPPORTED) - /* Detect gray background and attempt to enable optimization - * for gray --> RGB case */ - /* Note: if PNG_BACKGROUND_EXPAND is set and color_type is either RGB or - * RGB_ALPHA (in which case need_expand is superfluous anyway), the - * background color might actually be gray yet not be flagged as such. - * This is not a problem for the current code, which uses - * PNG_BACKGROUND_IS_GRAY only to decide when to do the - * png_do_gray_to_rgb() transformation. - */ - if ((png_ptr->transformations & PNG_BACKGROUND_EXPAND) && - !(color_type & PNG_COLOR_MASK_COLOR)) - { - png_ptr->mode |= PNG_BACKGROUND_IS_GRAY; - } else if ((png_ptr->transformations & PNG_BACKGROUND) && - !(png_ptr->transformations & PNG_BACKGROUND_EXPAND) && - (png_ptr->transformations & PNG_GRAY_TO_RGB) && - png_ptr->background.red == png_ptr->background.green && - png_ptr->background.red == png_ptr->background.blue) - { - png_ptr->mode |= PNG_BACKGROUND_IS_GRAY; - png_ptr->background.gray = png_ptr->background.red; - } -#endif - - if ((png_ptr->transformations & PNG_BACKGROUND_EXPAND) && - (png_ptr->transformations & PNG_EXPAND)) - { - if (!(color_type & PNG_COLOR_MASK_COLOR)) /* i.e., GRAY or GRAY_ALPHA */ - { - /* expand background and tRNS chunks */ - switch (png_ptr->bit_depth) - { - case 1: - png_ptr->background.gray *= (png_uint_16)0xff; - png_ptr->background.red = png_ptr->background.green - = png_ptr->background.blue = png_ptr->background.gray; - if (!(png_ptr->transformations & PNG_EXPAND_tRNS)) - { - png_ptr->trans_values.gray *= (png_uint_16)0xff; - png_ptr->trans_values.red = png_ptr->trans_values.green - = png_ptr->trans_values.blue = png_ptr->trans_values.gray; - } - break; - case 2: - png_ptr->background.gray *= (png_uint_16)0x55; - png_ptr->background.red = png_ptr->background.green - = png_ptr->background.blue = png_ptr->background.gray; - if (!(png_ptr->transformations & PNG_EXPAND_tRNS)) - { - png_ptr->trans_values.gray *= (png_uint_16)0x55; - png_ptr->trans_values.red = png_ptr->trans_values.green - = png_ptr->trans_values.blue = png_ptr->trans_values.gray; - } - break; - case 4: - png_ptr->background.gray *= (png_uint_16)0x11; - png_ptr->background.red = png_ptr->background.green - = png_ptr->background.blue = png_ptr->background.gray; - if (!(png_ptr->transformations & PNG_EXPAND_tRNS)) - { - png_ptr->trans_values.gray *= (png_uint_16)0x11; - png_ptr->trans_values.red = png_ptr->trans_values.green - = png_ptr->trans_values.blue = png_ptr->trans_values.gray; - } - break; - case 8: - case 16: - png_ptr->background.red = png_ptr->background.green - = png_ptr->background.blue = png_ptr->background.gray; - break; - } - } - else if (color_type == PNG_COLOR_TYPE_PALETTE) - { - png_ptr->background.red = - png_ptr->palette[png_ptr->background.index].red; - png_ptr->background.green = - png_ptr->palette[png_ptr->background.index].green; - png_ptr->background.blue = - png_ptr->palette[png_ptr->background.index].blue; - -#if defined(PNG_READ_INVERT_ALPHA_SUPPORTED) - if (png_ptr->transformations & PNG_INVERT_ALPHA) - { -#if defined(PNG_READ_EXPAND_SUPPORTED) - if (!(png_ptr->transformations & PNG_EXPAND_tRNS)) -#endif - { - /* invert the alpha channel (in tRNS) unless the pixels are - going to be expanded, in which case leave it for later */ - int i,istop; - istop=(int)png_ptr->num_trans; - for (i=0; itrans[i] = (png_byte)(255 - png_ptr->trans[i]); - } - } -#endif - - } - } -#endif - -#if defined(PNG_READ_BACKGROUND_SUPPORTED) && defined(PNG_READ_GAMMA_SUPPORTED) - png_ptr->background_1 = png_ptr->background; -#endif -#if defined(PNG_READ_GAMMA_SUPPORTED) && defined(PNG_FLOATING_POINT_SUPPORTED) - - if ((color_type == PNG_COLOR_TYPE_PALETTE && png_ptr->num_trans != 0) - && (fabs(png_ptr->screen_gamma * png_ptr->gamma - 1.0) - < PNG_GAMMA_THRESHOLD)) - { - int i,k; - k=0; - for (i=0; inum_trans; i++) - { - if (png_ptr->trans[i] != 0 && png_ptr->trans[i] != 0xff) - k=1; /* partial transparency is present */ - } - if (k == 0) - png_ptr->transformations &= ~PNG_GAMMA; - } - - if ((png_ptr->transformations & (PNG_GAMMA | PNG_RGB_TO_GRAY)) && - png_ptr->gamma != 0.0) - { - png_build_gamma_table(png_ptr); -#if defined(PNG_READ_BACKGROUND_SUPPORTED) - if (png_ptr->transformations & PNG_BACKGROUND) - { - if (color_type == PNG_COLOR_TYPE_PALETTE) - { - /* could skip if no transparency and - */ - png_color back, back_1; - png_colorp palette = png_ptr->palette; - int num_palette = png_ptr->num_palette; - int i; - if (png_ptr->background_gamma_type == PNG_BACKGROUND_GAMMA_FILE) - { - back.red = png_ptr->gamma_table[png_ptr->background.red]; - back.green = png_ptr->gamma_table[png_ptr->background.green]; - back.blue = png_ptr->gamma_table[png_ptr->background.blue]; - - back_1.red = png_ptr->gamma_to_1[png_ptr->background.red]; - back_1.green = png_ptr->gamma_to_1[png_ptr->background.green]; - back_1.blue = png_ptr->gamma_to_1[png_ptr->background.blue]; - } - else - { - double g, gs; - - switch (png_ptr->background_gamma_type) - { - case PNG_BACKGROUND_GAMMA_SCREEN: - g = (png_ptr->screen_gamma); - gs = 1.0; - break; - case PNG_BACKGROUND_GAMMA_FILE: - g = 1.0 / (png_ptr->gamma); - gs = 1.0 / (png_ptr->gamma * png_ptr->screen_gamma); - break; - case PNG_BACKGROUND_GAMMA_UNIQUE: - g = 1.0 / (png_ptr->background_gamma); - gs = 1.0 / (png_ptr->background_gamma * - png_ptr->screen_gamma); - break; - default: - g = 1.0; /* back_1 */ - gs = 1.0; /* back */ - } - - if ( fabs(gs - 1.0) < PNG_GAMMA_THRESHOLD) - { - back.red = (png_byte)png_ptr->background.red; - back.green = (png_byte)png_ptr->background.green; - back.blue = (png_byte)png_ptr->background.blue; - } - else - { - back.red = (png_byte)(pow( - (double)png_ptr->background.red/255, gs) * 255.0 + .5); - back.green = (png_byte)(pow( - (double)png_ptr->background.green/255, gs) * 255.0 + .5); - back.blue = (png_byte)(pow( - (double)png_ptr->background.blue/255, gs) * 255.0 + .5); - } - - back_1.red = (png_byte)(pow( - (double)png_ptr->background.red/255, g) * 255.0 + .5); - back_1.green = (png_byte)(pow( - (double)png_ptr->background.green/255, g) * 255.0 + .5); - back_1.blue = (png_byte)(pow( - (double)png_ptr->background.blue/255, g) * 255.0 + .5); - } - for (i = 0; i < num_palette; i++) - { - if (i < (int)png_ptr->num_trans && png_ptr->trans[i] != 0xff) - { - if (png_ptr->trans[i] == 0) - { - palette[i] = back; - } - else /* if (png_ptr->trans[i] != 0xff) */ - { - png_byte v, w; - - v = png_ptr->gamma_to_1[palette[i].red]; - png_composite(w, v, png_ptr->trans[i], back_1.red); - palette[i].red = png_ptr->gamma_from_1[w]; - - v = png_ptr->gamma_to_1[palette[i].green]; - png_composite(w, v, png_ptr->trans[i], back_1.green); - palette[i].green = png_ptr->gamma_from_1[w]; - - v = png_ptr->gamma_to_1[palette[i].blue]; - png_composite(w, v, png_ptr->trans[i], back_1.blue); - palette[i].blue = png_ptr->gamma_from_1[w]; - } - } - else - { - palette[i].red = png_ptr->gamma_table[palette[i].red]; - palette[i].green = png_ptr->gamma_table[palette[i].green]; - palette[i].blue = png_ptr->gamma_table[palette[i].blue]; - } - } - } - /* if (png_ptr->background_gamma_type!=PNG_BACKGROUND_GAMMA_UNKNOWN) */ - else - /* color_type != PNG_COLOR_TYPE_PALETTE */ - { - double m = (double)(((png_uint_32)1 << png_ptr->bit_depth) - 1); - double g = 1.0; - double gs = 1.0; - - switch (png_ptr->background_gamma_type) - { - case PNG_BACKGROUND_GAMMA_SCREEN: - g = (png_ptr->screen_gamma); - gs = 1.0; - break; - case PNG_BACKGROUND_GAMMA_FILE: - g = 1.0 / (png_ptr->gamma); - gs = 1.0 / (png_ptr->gamma * png_ptr->screen_gamma); - break; - case PNG_BACKGROUND_GAMMA_UNIQUE: - g = 1.0 / (png_ptr->background_gamma); - gs = 1.0 / (png_ptr->background_gamma * - png_ptr->screen_gamma); - break; - } - - png_ptr->background_1.gray = (png_uint_16)(pow( - (double)png_ptr->background.gray / m, g) * m + .5); - png_ptr->background.gray = (png_uint_16)(pow( - (double)png_ptr->background.gray / m, gs) * m + .5); - - if ((png_ptr->background.red != png_ptr->background.green) || - (png_ptr->background.red != png_ptr->background.blue) || - (png_ptr->background.red != png_ptr->background.gray)) - { - /* RGB or RGBA with color background */ - png_ptr->background_1.red = (png_uint_16)(pow( - (double)png_ptr->background.red / m, g) * m + .5); - png_ptr->background_1.green = (png_uint_16)(pow( - (double)png_ptr->background.green / m, g) * m + .5); - png_ptr->background_1.blue = (png_uint_16)(pow( - (double)png_ptr->background.blue / m, g) * m + .5); - png_ptr->background.red = (png_uint_16)(pow( - (double)png_ptr->background.red / m, gs) * m + .5); - png_ptr->background.green = (png_uint_16)(pow( - (double)png_ptr->background.green / m, gs) * m + .5); - png_ptr->background.blue = (png_uint_16)(pow( - (double)png_ptr->background.blue / m, gs) * m + .5); - } - else - { - /* GRAY, GRAY ALPHA, RGB, or RGBA with gray background */ - png_ptr->background_1.red = png_ptr->background_1.green - = png_ptr->background_1.blue = png_ptr->background_1.gray; - png_ptr->background.red = png_ptr->background.green - = png_ptr->background.blue = png_ptr->background.gray; - } - } - } - else - /* transformation does not include PNG_BACKGROUND */ -#endif /* PNG_READ_BACKGROUND_SUPPORTED */ - if (color_type == PNG_COLOR_TYPE_PALETTE) - { - png_colorp palette = png_ptr->palette; - int num_palette = png_ptr->num_palette; - int i; - - for (i = 0; i < num_palette; i++) - { - palette[i].red = png_ptr->gamma_table[palette[i].red]; - palette[i].green = png_ptr->gamma_table[palette[i].green]; - palette[i].blue = png_ptr->gamma_table[palette[i].blue]; - } - } - } -#if defined(PNG_READ_BACKGROUND_SUPPORTED) - else -#endif -#endif /* PNG_READ_GAMMA_SUPPORTED && PNG_FLOATING_POINT_SUPPORTED */ -#if defined(PNG_READ_BACKGROUND_SUPPORTED) - /* No GAMMA transformation */ - if ((png_ptr->transformations & PNG_BACKGROUND) && - (color_type == PNG_COLOR_TYPE_PALETTE)) - { - int i; - int istop = (int)png_ptr->num_trans; - png_color back; - png_colorp palette = png_ptr->palette; - - back.red = (png_byte)png_ptr->background.red; - back.green = (png_byte)png_ptr->background.green; - back.blue = (png_byte)png_ptr->background.blue; - - for (i = 0; i < istop; i++) - { - if (png_ptr->trans[i] == 0) - { - palette[i] = back; - } - else if (png_ptr->trans[i] != 0xff) - { - /* The png_composite() macro is defined in png.h */ - png_composite(palette[i].red, palette[i].red, - png_ptr->trans[i], back.red); - png_composite(palette[i].green, palette[i].green, - png_ptr->trans[i], back.green); - png_composite(palette[i].blue, palette[i].blue, - png_ptr->trans[i], back.blue); - } - } - } -#endif /* PNG_READ_BACKGROUND_SUPPORTED */ - -#if defined(PNG_READ_SHIFT_SUPPORTED) - if ((png_ptr->transformations & PNG_SHIFT) && - (color_type == PNG_COLOR_TYPE_PALETTE)) - { - png_uint_16 i; - png_uint_16 istop = png_ptr->num_palette; - int sr = 8 - png_ptr->sig_bit.red; - int sg = 8 - png_ptr->sig_bit.green; - int sb = 8 - png_ptr->sig_bit.blue; - - if (sr < 0 || sr > 8) - sr = 0; - if (sg < 0 || sg > 8) - sg = 0; - if (sb < 0 || sb > 8) - sb = 0; - for (i = 0; i < istop; i++) - { - png_ptr->palette[i].red >>= sr; - png_ptr->palette[i].green >>= sg; - png_ptr->palette[i].blue >>= sb; - } - } -#endif /* PNG_READ_SHIFT_SUPPORTED */ - } -#if !defined(PNG_READ_GAMMA_SUPPORTED) && !defined(PNG_READ_SHIFT_SUPPORTED) \ - && !defined(PNG_READ_BACKGROUND_SUPPORTED) - if(png_ptr) - return; -#endif -} - -/* Modify the info structure to reflect the transformations. The - * info should be updated so a PNG file could be written with it, - * assuming the transformations result in valid PNG data. - */ -void /* PRIVATE */ -png_read_transform_info(png_structp png_ptr, png_infop info_ptr) -{ - png_debug(1, "in png_read_transform_info\n"); -#if defined(PNG_READ_EXPAND_SUPPORTED) - if (png_ptr->transformations & PNG_EXPAND) - { - if (info_ptr->color_type == PNG_COLOR_TYPE_PALETTE) - { - if (png_ptr->num_trans && (png_ptr->transformations & PNG_EXPAND_tRNS)) - info_ptr->color_type = PNG_COLOR_TYPE_RGB_ALPHA; - else - info_ptr->color_type = PNG_COLOR_TYPE_RGB; - info_ptr->bit_depth = 8; - info_ptr->num_trans = 0; - } - else - { - if (png_ptr->num_trans) - { - if (png_ptr->transformations & PNG_EXPAND_tRNS) - info_ptr->color_type |= PNG_COLOR_MASK_ALPHA; - else - info_ptr->color_type |= PNG_COLOR_MASK_COLOR; - } - if (info_ptr->bit_depth < 8) - info_ptr->bit_depth = 8; - info_ptr->num_trans = 0; - } - } -#endif - -#if defined(PNG_READ_BACKGROUND_SUPPORTED) - if (png_ptr->transformations & PNG_BACKGROUND) - { - info_ptr->color_type &= ~PNG_COLOR_MASK_ALPHA; - info_ptr->num_trans = 0; - info_ptr->background = png_ptr->background; - } -#endif - -#if defined(PNG_READ_GAMMA_SUPPORTED) - if (png_ptr->transformations & PNG_GAMMA) - { -#ifdef PNG_FLOATING_POINT_SUPPORTED - info_ptr->gamma = png_ptr->gamma; -#endif -#ifdef PNG_FIXED_POINT_SUPPORTED - info_ptr->int_gamma = png_ptr->int_gamma; -#endif - } -#endif - -#if defined(PNG_READ_16_TO_8_SUPPORTED) - if ((png_ptr->transformations & PNG_16_TO_8) && (info_ptr->bit_depth == 16)) - info_ptr->bit_depth = 8; -#endif - -#if defined(PNG_READ_GRAY_TO_RGB_SUPPORTED) - if (png_ptr->transformations & PNG_GRAY_TO_RGB) - info_ptr->color_type |= PNG_COLOR_MASK_COLOR; -#endif - -#if defined(PNG_READ_RGB_TO_GRAY_SUPPORTED) - if (png_ptr->transformations & PNG_RGB_TO_GRAY) - info_ptr->color_type &= ~PNG_COLOR_MASK_COLOR; -#endif - -#if defined(PNG_READ_DITHER_SUPPORTED) - if (png_ptr->transformations & PNG_DITHER) - { - if (((info_ptr->color_type == PNG_COLOR_TYPE_RGB) || - (info_ptr->color_type == PNG_COLOR_TYPE_RGB_ALPHA)) && - png_ptr->palette_lookup && info_ptr->bit_depth == 8) - { - info_ptr->color_type = PNG_COLOR_TYPE_PALETTE; - } - } -#endif - -#if defined(PNG_READ_PACK_SUPPORTED) - if ((png_ptr->transformations & PNG_PACK) && (info_ptr->bit_depth < 8)) - info_ptr->bit_depth = 8; -#endif - - if (info_ptr->color_type == PNG_COLOR_TYPE_PALETTE) - info_ptr->channels = 1; - else if (info_ptr->color_type & PNG_COLOR_MASK_COLOR) - info_ptr->channels = 3; - else - info_ptr->channels = 1; - -#if defined(PNG_READ_STRIP_ALPHA_SUPPORTED) - if (png_ptr->flags & PNG_FLAG_STRIP_ALPHA) - info_ptr->color_type &= ~PNG_COLOR_MASK_ALPHA; -#endif - - if (info_ptr->color_type & PNG_COLOR_MASK_ALPHA) - info_ptr->channels++; - -#if defined(PNG_READ_FILLER_SUPPORTED) - /* STRIP_ALPHA and FILLER allowed: MASK_ALPHA bit stripped above */ - if ((png_ptr->transformations & PNG_FILLER) && - ((info_ptr->color_type == PNG_COLOR_TYPE_RGB) || - (info_ptr->color_type == PNG_COLOR_TYPE_GRAY))) - { - info_ptr->channels++; - /* if adding a true alpha channel not just filler */ -#if !defined(PNG_1_0_X) - if (png_ptr->transformations & PNG_ADD_ALPHA) - info_ptr->color_type |= PNG_COLOR_MASK_ALPHA; -#endif - } -#endif - -#if defined(PNG_USER_TRANSFORM_PTR_SUPPORTED) && \ -defined(PNG_READ_USER_TRANSFORM_SUPPORTED) - if(png_ptr->transformations & PNG_USER_TRANSFORM) - { - if(info_ptr->bit_depth < png_ptr->user_transform_depth) - info_ptr->bit_depth = png_ptr->user_transform_depth; - if(info_ptr->channels < png_ptr->user_transform_channels) - info_ptr->channels = png_ptr->user_transform_channels; - } -#endif - - info_ptr->pixel_depth = (png_byte)(info_ptr->channels * - info_ptr->bit_depth); - - info_ptr->rowbytes = PNG_ROWBYTES(info_ptr->pixel_depth,info_ptr->width); - -#if !defined(PNG_READ_EXPAND_SUPPORTED) - if(png_ptr) - return; -#endif -} - -/* Transform the row. The order of transformations is significant, - * and is very touchy. If you add a transformation, take care to - * decide how it fits in with the other transformations here. - */ -void /* PRIVATE */ -png_do_read_transformations(png_structp png_ptr) -{ - png_debug(1, "in png_do_read_transformations\n"); - if (png_ptr->row_buf == NULL) - { -#if !defined(PNG_NO_STDIO) && !defined(_WIN32_WCE) - char msg[50]; - - png_snprintf2(msg, 50, - "NULL row buffer for row %ld, pass %d", png_ptr->row_number, - png_ptr->pass); - png_error(png_ptr, msg); -#else - png_error(png_ptr, "NULL row buffer"); -#endif - } -#ifdef PNG_WARN_UNINITIALIZED_ROW - if (!(png_ptr->flags & PNG_FLAG_ROW_INIT)) - /* Application has failed to call either png_read_start_image() - * or png_read_update_info() after setting transforms that expand - * pixels. This check added to libpng-1.2.19 */ -#if (PNG_WARN_UNINITIALIZED_ROW==1) - png_error(png_ptr, "Uninitialized row"); -#else - png_warning(png_ptr, "Uninitialized row"); -#endif -#endif - -#if defined(PNG_READ_EXPAND_SUPPORTED) - if (png_ptr->transformations & PNG_EXPAND) - { - if (png_ptr->row_info.color_type == PNG_COLOR_TYPE_PALETTE) - { - png_do_expand_palette(&(png_ptr->row_info), png_ptr->row_buf + 1, - png_ptr->palette, png_ptr->trans, png_ptr->num_trans); - } - else - { - if (png_ptr->num_trans && - (png_ptr->transformations & PNG_EXPAND_tRNS)) - png_do_expand(&(png_ptr->row_info), png_ptr->row_buf + 1, - &(png_ptr->trans_values)); - else - png_do_expand(&(png_ptr->row_info), png_ptr->row_buf + 1, - NULL); - } - } -#endif - -#if defined(PNG_READ_STRIP_ALPHA_SUPPORTED) - if (png_ptr->flags & PNG_FLAG_STRIP_ALPHA) - png_do_strip_filler(&(png_ptr->row_info), png_ptr->row_buf + 1, - PNG_FLAG_FILLER_AFTER | (png_ptr->flags & PNG_FLAG_STRIP_ALPHA)); -#endif - -#if defined(PNG_READ_RGB_TO_GRAY_SUPPORTED) - if (png_ptr->transformations & PNG_RGB_TO_GRAY) - { - int rgb_error = - png_do_rgb_to_gray(png_ptr, &(png_ptr->row_info), png_ptr->row_buf + 1); - if(rgb_error) - { - png_ptr->rgb_to_gray_status=1; - if((png_ptr->transformations & PNG_RGB_TO_GRAY) == - PNG_RGB_TO_GRAY_WARN) - png_warning(png_ptr, "png_do_rgb_to_gray found nongray pixel"); - if((png_ptr->transformations & PNG_RGB_TO_GRAY) == - PNG_RGB_TO_GRAY_ERR) - png_error(png_ptr, "png_do_rgb_to_gray found nongray pixel"); - } - } -#endif - -/* -From Andreas Dilger e-mail to png-implement, 26 March 1998: - - In most cases, the "simple transparency" should be done prior to doing - gray-to-RGB, or you will have to test 3x as many bytes to check if a - pixel is transparent. You would also need to make sure that the - transparency information is upgraded to RGB. - - To summarize, the current flow is: - - Gray + simple transparency -> compare 1 or 2 gray bytes and composite - with background "in place" if transparent, - convert to RGB if necessary - - Gray + alpha -> composite with gray background and remove alpha bytes, - convert to RGB if necessary - - To support RGB backgrounds for gray images we need: - - Gray + simple transparency -> convert to RGB + simple transparency, compare - 3 or 6 bytes and composite with background - "in place" if transparent (3x compare/pixel - compared to doing composite with gray bkgrnd) - - Gray + alpha -> convert to RGB + alpha, composite with background and - remove alpha bytes (3x float operations/pixel - compared with composite on gray background) - - Greg's change will do this. The reason it wasn't done before is for - performance, as this increases the per-pixel operations. If we would check - in advance if the background was gray or RGB, and position the gray-to-RGB - transform appropriately, then it would save a lot of work/time. - */ - -#if defined(PNG_READ_GRAY_TO_RGB_SUPPORTED) - /* if gray -> RGB, do so now only if background is non-gray; else do later - * for performance reasons */ - if ((png_ptr->transformations & PNG_GRAY_TO_RGB) && - !(png_ptr->mode & PNG_BACKGROUND_IS_GRAY)) - png_do_gray_to_rgb(&(png_ptr->row_info), png_ptr->row_buf + 1); -#endif - -#if defined(PNG_READ_BACKGROUND_SUPPORTED) - if ((png_ptr->transformations & PNG_BACKGROUND) && - ((png_ptr->num_trans != 0 ) || - (png_ptr->color_type & PNG_COLOR_MASK_ALPHA))) - png_do_background(&(png_ptr->row_info), png_ptr->row_buf + 1, - &(png_ptr->trans_values), &(png_ptr->background) -#if defined(PNG_READ_GAMMA_SUPPORTED) - , &(png_ptr->background_1), - png_ptr->gamma_table, png_ptr->gamma_from_1, - png_ptr->gamma_to_1, png_ptr->gamma_16_table, - png_ptr->gamma_16_from_1, png_ptr->gamma_16_to_1, - png_ptr->gamma_shift -#endif -); -#endif - -#if defined(PNG_READ_GAMMA_SUPPORTED) - if ((png_ptr->transformations & PNG_GAMMA) && -#if defined(PNG_READ_BACKGROUND_SUPPORTED) - !((png_ptr->transformations & PNG_BACKGROUND) && - ((png_ptr->num_trans != 0) || - (png_ptr->color_type & PNG_COLOR_MASK_ALPHA))) && -#endif - (png_ptr->color_type != PNG_COLOR_TYPE_PALETTE)) - png_do_gamma(&(png_ptr->row_info), png_ptr->row_buf + 1, - png_ptr->gamma_table, png_ptr->gamma_16_table, - png_ptr->gamma_shift); -#endif - -#if defined(PNG_READ_16_TO_8_SUPPORTED) - if (png_ptr->transformations & PNG_16_TO_8) - png_do_chop(&(png_ptr->row_info), png_ptr->row_buf + 1); -#endif - -#if defined(PNG_READ_DITHER_SUPPORTED) - if (png_ptr->transformations & PNG_DITHER) - { - png_do_dither((png_row_infop)&(png_ptr->row_info), png_ptr->row_buf + 1, - png_ptr->palette_lookup, png_ptr->dither_index); - if(png_ptr->row_info.rowbytes == (png_uint_32)0) - png_error(png_ptr, "png_do_dither returned rowbytes=0"); - } -#endif - -#if defined(PNG_READ_INVERT_SUPPORTED) - if (png_ptr->transformations & PNG_INVERT_MONO) - png_do_invert(&(png_ptr->row_info), png_ptr->row_buf + 1); -#endif - -#if defined(PNG_READ_SHIFT_SUPPORTED) - if (png_ptr->transformations & PNG_SHIFT) - png_do_unshift(&(png_ptr->row_info), png_ptr->row_buf + 1, - &(png_ptr->shift)); -#endif - -#if defined(PNG_READ_PACK_SUPPORTED) - if (png_ptr->transformations & PNG_PACK) - png_do_unpack(&(png_ptr->row_info), png_ptr->row_buf + 1); -#endif - -#if defined(PNG_READ_BGR_SUPPORTED) - if (png_ptr->transformations & PNG_BGR) - png_do_bgr(&(png_ptr->row_info), png_ptr->row_buf + 1); -#endif - -#if defined(PNG_READ_PACKSWAP_SUPPORTED) - if (png_ptr->transformations & PNG_PACKSWAP) - png_do_packswap(&(png_ptr->row_info), png_ptr->row_buf + 1); -#endif - -#if defined(PNG_READ_GRAY_TO_RGB_SUPPORTED) - /* if gray -> RGB, do so now only if we did not do so above */ - if ((png_ptr->transformations & PNG_GRAY_TO_RGB) && - (png_ptr->mode & PNG_BACKGROUND_IS_GRAY)) - png_do_gray_to_rgb(&(png_ptr->row_info), png_ptr->row_buf + 1); -#endif - -#if defined(PNG_READ_FILLER_SUPPORTED) - if (png_ptr->transformations & PNG_FILLER) - png_do_read_filler(&(png_ptr->row_info), png_ptr->row_buf + 1, - (png_uint_32)png_ptr->filler, png_ptr->flags); -#endif - -#if defined(PNG_READ_INVERT_ALPHA_SUPPORTED) - if (png_ptr->transformations & PNG_INVERT_ALPHA) - png_do_read_invert_alpha(&(png_ptr->row_info), png_ptr->row_buf + 1); -#endif - -#if defined(PNG_READ_SWAP_ALPHA_SUPPORTED) - if (png_ptr->transformations & PNG_SWAP_ALPHA) - png_do_read_swap_alpha(&(png_ptr->row_info), png_ptr->row_buf + 1); -#endif - -#if defined(PNG_READ_SWAP_SUPPORTED) - if (png_ptr->transformations & PNG_SWAP_BYTES) - png_do_swap(&(png_ptr->row_info), png_ptr->row_buf + 1); -#endif - -#if defined(PNG_READ_USER_TRANSFORM_SUPPORTED) - if (png_ptr->transformations & PNG_USER_TRANSFORM) - { - if(png_ptr->read_user_transform_fn != NULL) - (*(png_ptr->read_user_transform_fn)) /* user read transform function */ - (png_ptr, /* png_ptr */ - &(png_ptr->row_info), /* row_info: */ - /* png_uint_32 width; width of row */ - /* png_uint_32 rowbytes; number of bytes in row */ - /* png_byte color_type; color type of pixels */ - /* png_byte bit_depth; bit depth of samples */ - /* png_byte channels; number of channels (1-4) */ - /* png_byte pixel_depth; bits per pixel (depth*channels) */ - png_ptr->row_buf + 1); /* start of pixel data for row */ -#if defined(PNG_USER_TRANSFORM_PTR_SUPPORTED) - if(png_ptr->user_transform_depth) - png_ptr->row_info.bit_depth = png_ptr->user_transform_depth; - if(png_ptr->user_transform_channels) - png_ptr->row_info.channels = png_ptr->user_transform_channels; -#endif - png_ptr->row_info.pixel_depth = (png_byte)(png_ptr->row_info.bit_depth * - png_ptr->row_info.channels); - png_ptr->row_info.rowbytes = PNG_ROWBYTES(png_ptr->row_info.pixel_depth, - png_ptr->row_info.width); - } -#endif - -} - -#if defined(PNG_READ_PACK_SUPPORTED) -/* Unpack pixels of 1, 2, or 4 bits per pixel into 1 byte per pixel, - * without changing the actual values. Thus, if you had a row with - * a bit depth of 1, you would end up with bytes that only contained - * the numbers 0 or 1. If you would rather they contain 0 and 255, use - * png_do_shift() after this. - */ -void /* PRIVATE */ -png_do_unpack(png_row_infop row_info, png_bytep row) -{ - png_debug(1, "in png_do_unpack\n"); -#if defined(PNG_USELESS_TESTS_SUPPORTED) - if (row != NULL && row_info != NULL && row_info->bit_depth < 8) -#else - if (row_info->bit_depth < 8) -#endif - { - png_uint_32 i; - png_uint_32 row_width=row_info->width; - - switch (row_info->bit_depth) - { - case 1: - { - png_bytep sp = row + (png_size_t)((row_width - 1) >> 3); - png_bytep dp = row + (png_size_t)row_width - 1; - png_uint_32 shift = 7 - (int)((row_width + 7) & 0x07); - for (i = 0; i < row_width; i++) - { - *dp = (png_byte)((*sp >> shift) & 0x01); - if (shift == 7) - { - shift = 0; - sp--; - } - else - shift++; - - dp--; - } - break; - } - case 2: - { - - png_bytep sp = row + (png_size_t)((row_width - 1) >> 2); - png_bytep dp = row + (png_size_t)row_width - 1; - png_uint_32 shift = (int)((3 - ((row_width + 3) & 0x03)) << 1); - for (i = 0; i < row_width; i++) - { - *dp = (png_byte)((*sp >> shift) & 0x03); - if (shift == 6) - { - shift = 0; - sp--; - } - else - shift += 2; - - dp--; - } - break; - } - case 4: - { - png_bytep sp = row + (png_size_t)((row_width - 1) >> 1); - png_bytep dp = row + (png_size_t)row_width - 1; - png_uint_32 shift = (int)((1 - ((row_width + 1) & 0x01)) << 2); - for (i = 0; i < row_width; i++) - { - *dp = (png_byte)((*sp >> shift) & 0x0f); - if (shift == 4) - { - shift = 0; - sp--; - } - else - shift = 4; - - dp--; - } - break; - } - } - row_info->bit_depth = 8; - row_info->pixel_depth = (png_byte)(8 * row_info->channels); - row_info->rowbytes = row_width * row_info->channels; - } -} -#endif - -#if defined(PNG_READ_SHIFT_SUPPORTED) -/* Reverse the effects of png_do_shift. This routine merely shifts the - * pixels back to their significant bits values. Thus, if you have - * a row of bit depth 8, but only 5 are significant, this will shift - * the values back to 0 through 31. - */ -void /* PRIVATE */ -png_do_unshift(png_row_infop row_info, png_bytep row, png_color_8p sig_bits) -{ - png_debug(1, "in png_do_unshift\n"); - if ( -#if defined(PNG_USELESS_TESTS_SUPPORTED) - row != NULL && row_info != NULL && sig_bits != NULL && -#endif - row_info->color_type != PNG_COLOR_TYPE_PALETTE) - { - int shift[4]; - int channels = 0; - int c; - png_uint_16 value = 0; - png_uint_32 row_width = row_info->width; - - if (row_info->color_type & PNG_COLOR_MASK_COLOR) - { - shift[channels++] = row_info->bit_depth - sig_bits->red; - shift[channels++] = row_info->bit_depth - sig_bits->green; - shift[channels++] = row_info->bit_depth - sig_bits->blue; - } - else - { - shift[channels++] = row_info->bit_depth - sig_bits->gray; - } - if (row_info->color_type & PNG_COLOR_MASK_ALPHA) - { - shift[channels++] = row_info->bit_depth - sig_bits->alpha; - } - - for (c = 0; c < channels; c++) - { - if (shift[c] <= 0) - shift[c] = 0; - else - value = 1; - } - - if (!value) - return; - - switch (row_info->bit_depth) - { - case 2: - { - png_bytep bp; - png_uint_32 i; - png_uint_32 istop = row_info->rowbytes; - - for (bp = row, i = 0; i < istop; i++) - { - *bp >>= 1; - *bp++ &= 0x55; - } - break; - } - case 4: - { - png_bytep bp = row; - png_uint_32 i; - png_uint_32 istop = row_info->rowbytes; - png_byte mask = (png_byte)((((int)0xf0 >> shift[0]) & (int)0xf0) | - (png_byte)((int)0xf >> shift[0])); - - for (i = 0; i < istop; i++) - { - *bp >>= shift[0]; - *bp++ &= mask; - } - break; - } - case 8: - { - png_bytep bp = row; - png_uint_32 i; - png_uint_32 istop = row_width * channels; - - for (i = 0; i < istop; i++) - { - *bp++ >>= shift[i%channels]; - } - break; - } - case 16: - { - png_bytep bp = row; - png_uint_32 i; - png_uint_32 istop = channels * row_width; - - for (i = 0; i < istop; i++) - { - value = (png_uint_16)((*bp << 8) + *(bp + 1)); - value >>= shift[i%channels]; - *bp++ = (png_byte)(value >> 8); - *bp++ = (png_byte)(value & 0xff); - } - break; - } - } - } -} -#endif - -#if defined(PNG_READ_16_TO_8_SUPPORTED) -/* chop rows of bit depth 16 down to 8 */ -void /* PRIVATE */ -png_do_chop(png_row_infop row_info, png_bytep row) -{ - png_debug(1, "in png_do_chop\n"); -#if defined(PNG_USELESS_TESTS_SUPPORTED) - if (row != NULL && row_info != NULL && row_info->bit_depth == 16) -#else - if (row_info->bit_depth == 16) -#endif - { - png_bytep sp = row; - png_bytep dp = row; - png_uint_32 i; - png_uint_32 istop = row_info->width * row_info->channels; - - for (i = 0; i> 8)) >> 8; - * - * Approximate calculation with shift/add instead of multiply/divide: - * *dp = ((((png_uint_32)(*sp) << 8) | - * (png_uint_32)((int)(*(sp + 1)) - *sp)) + 128) >> 8; - * - * What we actually do to avoid extra shifting and conversion: - */ - - *dp = *sp + ((((int)(*(sp + 1)) - *sp) > 128) ? 1 : 0); -#else - /* Simply discard the low order byte */ - *dp = *sp; -#endif - } - row_info->bit_depth = 8; - row_info->pixel_depth = (png_byte)(8 * row_info->channels); - row_info->rowbytes = row_info->width * row_info->channels; - } -} -#endif - -#if defined(PNG_READ_SWAP_ALPHA_SUPPORTED) -void /* PRIVATE */ -png_do_read_swap_alpha(png_row_infop row_info, png_bytep row) -{ - png_debug(1, "in png_do_read_swap_alpha\n"); -#if defined(PNG_USELESS_TESTS_SUPPORTED) - if (row != NULL && row_info != NULL) -#endif - { - png_uint_32 row_width = row_info->width; - if (row_info->color_type == PNG_COLOR_TYPE_RGB_ALPHA) - { - /* This converts from RGBA to ARGB */ - if (row_info->bit_depth == 8) - { - png_bytep sp = row + row_info->rowbytes; - png_bytep dp = sp; - png_byte save; - png_uint_32 i; - - for (i = 0; i < row_width; i++) - { - save = *(--sp); - *(--dp) = *(--sp); - *(--dp) = *(--sp); - *(--dp) = *(--sp); - *(--dp) = save; - } - } - /* This converts from RRGGBBAA to AARRGGBB */ - else - { - png_bytep sp = row + row_info->rowbytes; - png_bytep dp = sp; - png_byte save[2]; - png_uint_32 i; - - for (i = 0; i < row_width; i++) - { - save[0] = *(--sp); - save[1] = *(--sp); - *(--dp) = *(--sp); - *(--dp) = *(--sp); - *(--dp) = *(--sp); - *(--dp) = *(--sp); - *(--dp) = *(--sp); - *(--dp) = *(--sp); - *(--dp) = save[0]; - *(--dp) = save[1]; - } - } - } - else if (row_info->color_type == PNG_COLOR_TYPE_GRAY_ALPHA) - { - /* This converts from GA to AG */ - if (row_info->bit_depth == 8) - { - png_bytep sp = row + row_info->rowbytes; - png_bytep dp = sp; - png_byte save; - png_uint_32 i; - - for (i = 0; i < row_width; i++) - { - save = *(--sp); - *(--dp) = *(--sp); - *(--dp) = save; - } - } - /* This converts from GGAA to AAGG */ - else - { - png_bytep sp = row + row_info->rowbytes; - png_bytep dp = sp; - png_byte save[2]; - png_uint_32 i; - - for (i = 0; i < row_width; i++) - { - save[0] = *(--sp); - save[1] = *(--sp); - *(--dp) = *(--sp); - *(--dp) = *(--sp); - *(--dp) = save[0]; - *(--dp) = save[1]; - } - } - } - } -} -#endif - -#if defined(PNG_READ_INVERT_ALPHA_SUPPORTED) -void /* PRIVATE */ -png_do_read_invert_alpha(png_row_infop row_info, png_bytep row) -{ - png_debug(1, "in png_do_read_invert_alpha\n"); -#if defined(PNG_USELESS_TESTS_SUPPORTED) - if (row != NULL && row_info != NULL) -#endif - { - png_uint_32 row_width = row_info->width; - if (row_info->color_type == PNG_COLOR_TYPE_RGB_ALPHA) - { - /* This inverts the alpha channel in RGBA */ - if (row_info->bit_depth == 8) - { - png_bytep sp = row + row_info->rowbytes; - png_bytep dp = sp; - png_uint_32 i; - - for (i = 0; i < row_width; i++) - { - *(--dp) = (png_byte)(255 - *(--sp)); - -/* This does nothing: - *(--dp) = *(--sp); - *(--dp) = *(--sp); - *(--dp) = *(--sp); - We can replace it with: -*/ - sp-=3; - dp=sp; - } - } - /* This inverts the alpha channel in RRGGBBAA */ - else - { - png_bytep sp = row + row_info->rowbytes; - png_bytep dp = sp; - png_uint_32 i; - - for (i = 0; i < row_width; i++) - { - *(--dp) = (png_byte)(255 - *(--sp)); - *(--dp) = (png_byte)(255 - *(--sp)); - -/* This does nothing: - *(--dp) = *(--sp); - *(--dp) = *(--sp); - *(--dp) = *(--sp); - *(--dp) = *(--sp); - *(--dp) = *(--sp); - *(--dp) = *(--sp); - We can replace it with: -*/ - sp-=6; - dp=sp; - } - } - } - else if (row_info->color_type == PNG_COLOR_TYPE_GRAY_ALPHA) - { - /* This inverts the alpha channel in GA */ - if (row_info->bit_depth == 8) - { - png_bytep sp = row + row_info->rowbytes; - png_bytep dp = sp; - png_uint_32 i; - - for (i = 0; i < row_width; i++) - { - *(--dp) = (png_byte)(255 - *(--sp)); - *(--dp) = *(--sp); - } - } - /* This inverts the alpha channel in GGAA */ - else - { - png_bytep sp = row + row_info->rowbytes; - png_bytep dp = sp; - png_uint_32 i; - - for (i = 0; i < row_width; i++) - { - *(--dp) = (png_byte)(255 - *(--sp)); - *(--dp) = (png_byte)(255 - *(--sp)); -/* - *(--dp) = *(--sp); - *(--dp) = *(--sp); -*/ - sp-=2; - dp=sp; - } - } - } - } -} -#endif - -#if defined(PNG_READ_FILLER_SUPPORTED) -/* Add filler channel if we have RGB color */ -void /* PRIVATE */ -png_do_read_filler(png_row_infop row_info, png_bytep row, - png_uint_32 filler, png_uint_32 flags) -{ - png_uint_32 i; - png_uint_32 row_width = row_info->width; - - png_byte hi_filler = (png_byte)((filler>>8) & 0xff); - png_byte lo_filler = (png_byte)(filler & 0xff); - - png_debug(1, "in png_do_read_filler\n"); - if ( -#if defined(PNG_USELESS_TESTS_SUPPORTED) - row != NULL && row_info != NULL && -#endif - row_info->color_type == PNG_COLOR_TYPE_GRAY) - { - if(row_info->bit_depth == 8) - { - /* This changes the data from G to GX */ - if (flags & PNG_FLAG_FILLER_AFTER) - { - png_bytep sp = row + (png_size_t)row_width; - png_bytep dp = sp + (png_size_t)row_width; - for (i = 1; i < row_width; i++) - { - *(--dp) = lo_filler; - *(--dp) = *(--sp); - } - *(--dp) = lo_filler; - row_info->channels = 2; - row_info->pixel_depth = 16; - row_info->rowbytes = row_width * 2; - } - /* This changes the data from G to XG */ - else - { - png_bytep sp = row + (png_size_t)row_width; - png_bytep dp = sp + (png_size_t)row_width; - for (i = 0; i < row_width; i++) - { - *(--dp) = *(--sp); - *(--dp) = lo_filler; - } - row_info->channels = 2; - row_info->pixel_depth = 16; - row_info->rowbytes = row_width * 2; - } - } - else if(row_info->bit_depth == 16) - { - /* This changes the data from GG to GGXX */ - if (flags & PNG_FLAG_FILLER_AFTER) - { - png_bytep sp = row + (png_size_t)row_width * 2; - png_bytep dp = sp + (png_size_t)row_width * 2; - for (i = 1; i < row_width; i++) - { - *(--dp) = hi_filler; - *(--dp) = lo_filler; - *(--dp) = *(--sp); - *(--dp) = *(--sp); - } - *(--dp) = hi_filler; - *(--dp) = lo_filler; - row_info->channels = 2; - row_info->pixel_depth = 32; - row_info->rowbytes = row_width * 4; - } - /* This changes the data from GG to XXGG */ - else - { - png_bytep sp = row + (png_size_t)row_width * 2; - png_bytep dp = sp + (png_size_t)row_width * 2; - for (i = 0; i < row_width; i++) - { - *(--dp) = *(--sp); - *(--dp) = *(--sp); - *(--dp) = hi_filler; - *(--dp) = lo_filler; - } - row_info->channels = 2; - row_info->pixel_depth = 32; - row_info->rowbytes = row_width * 4; - } - } - } /* COLOR_TYPE == GRAY */ - else if (row_info->color_type == PNG_COLOR_TYPE_RGB) - { - if(row_info->bit_depth == 8) - { - /* This changes the data from RGB to RGBX */ - if (flags & PNG_FLAG_FILLER_AFTER) - { - png_bytep sp = row + (png_size_t)row_width * 3; - png_bytep dp = sp + (png_size_t)row_width; - for (i = 1; i < row_width; i++) - { - *(--dp) = lo_filler; - *(--dp) = *(--sp); - *(--dp) = *(--sp); - *(--dp) = *(--sp); - } - *(--dp) = lo_filler; - row_info->channels = 4; - row_info->pixel_depth = 32; - row_info->rowbytes = row_width * 4; - } - /* This changes the data from RGB to XRGB */ - else - { - png_bytep sp = row + (png_size_t)row_width * 3; - png_bytep dp = sp + (png_size_t)row_width; - for (i = 0; i < row_width; i++) - { - *(--dp) = *(--sp); - *(--dp) = *(--sp); - *(--dp) = *(--sp); - *(--dp) = lo_filler; - } - row_info->channels = 4; - row_info->pixel_depth = 32; - row_info->rowbytes = row_width * 4; - } - } - else if(row_info->bit_depth == 16) - { - /* This changes the data from RRGGBB to RRGGBBXX */ - if (flags & PNG_FLAG_FILLER_AFTER) - { - png_bytep sp = row + (png_size_t)row_width * 6; - png_bytep dp = sp + (png_size_t)row_width * 2; - for (i = 1; i < row_width; i++) - { - *(--dp) = hi_filler; - *(--dp) = lo_filler; - *(--dp) = *(--sp); - *(--dp) = *(--sp); - *(--dp) = *(--sp); - *(--dp) = *(--sp); - *(--dp) = *(--sp); - *(--dp) = *(--sp); - } - *(--dp) = hi_filler; - *(--dp) = lo_filler; - row_info->channels = 4; - row_info->pixel_depth = 64; - row_info->rowbytes = row_width * 8; - } - /* This changes the data from RRGGBB to XXRRGGBB */ - else - { - png_bytep sp = row + (png_size_t)row_width * 6; - png_bytep dp = sp + (png_size_t)row_width * 2; - for (i = 0; i < row_width; i++) - { - *(--dp) = *(--sp); - *(--dp) = *(--sp); - *(--dp) = *(--sp); - *(--dp) = *(--sp); - *(--dp) = *(--sp); - *(--dp) = *(--sp); - *(--dp) = hi_filler; - *(--dp) = lo_filler; - } - row_info->channels = 4; - row_info->pixel_depth = 64; - row_info->rowbytes = row_width * 8; - } - } - } /* COLOR_TYPE == RGB */ -} -#endif - -#if defined(PNG_READ_GRAY_TO_RGB_SUPPORTED) -/* expand grayscale files to RGB, with or without alpha */ -void /* PRIVATE */ -png_do_gray_to_rgb(png_row_infop row_info, png_bytep row) -{ - png_uint_32 i; - png_uint_32 row_width = row_info->width; - - png_debug(1, "in png_do_gray_to_rgb\n"); - if (row_info->bit_depth >= 8 && -#if defined(PNG_USELESS_TESTS_SUPPORTED) - row != NULL && row_info != NULL && -#endif - !(row_info->color_type & PNG_COLOR_MASK_COLOR)) - { - if (row_info->color_type == PNG_COLOR_TYPE_GRAY) - { - if (row_info->bit_depth == 8) - { - png_bytep sp = row + (png_size_t)row_width - 1; - png_bytep dp = sp + (png_size_t)row_width * 2; - for (i = 0; i < row_width; i++) - { - *(dp--) = *sp; - *(dp--) = *sp; - *(dp--) = *(sp--); - } - } - else - { - png_bytep sp = row + (png_size_t)row_width * 2 - 1; - png_bytep dp = sp + (png_size_t)row_width * 4; - for (i = 0; i < row_width; i++) - { - *(dp--) = *sp; - *(dp--) = *(sp - 1); - *(dp--) = *sp; - *(dp--) = *(sp - 1); - *(dp--) = *(sp--); - *(dp--) = *(sp--); - } - } - } - else if (row_info->color_type == PNG_COLOR_TYPE_GRAY_ALPHA) - { - if (row_info->bit_depth == 8) - { - png_bytep sp = row + (png_size_t)row_width * 2 - 1; - png_bytep dp = sp + (png_size_t)row_width * 2; - for (i = 0; i < row_width; i++) - { - *(dp--) = *(sp--); - *(dp--) = *sp; - *(dp--) = *sp; - *(dp--) = *(sp--); - } - } - else - { - png_bytep sp = row + (png_size_t)row_width * 4 - 1; - png_bytep dp = sp + (png_size_t)row_width * 4; - for (i = 0; i < row_width; i++) - { - *(dp--) = *(sp--); - *(dp--) = *(sp--); - *(dp--) = *sp; - *(dp--) = *(sp - 1); - *(dp--) = *sp; - *(dp--) = *(sp - 1); - *(dp--) = *(sp--); - *(dp--) = *(sp--); - } - } - } - row_info->channels += (png_byte)2; - row_info->color_type |= PNG_COLOR_MASK_COLOR; - row_info->pixel_depth = (png_byte)(row_info->channels * - row_info->bit_depth); - row_info->rowbytes = PNG_ROWBYTES(row_info->pixel_depth,row_width); - } -} -#endif - -#if defined(PNG_READ_RGB_TO_GRAY_SUPPORTED) -/* reduce RGB files to grayscale, with or without alpha - * using the equation given in Poynton's ColorFAQ at - * - * Copyright (c) 1998-01-04 Charles Poynton poynton at inforamp.net - * - * Y = 0.212671 * R + 0.715160 * G + 0.072169 * B - * - * We approximate this with - * - * Y = 0.21268 * R + 0.7151 * G + 0.07217 * B - * - * which can be expressed with integers as - * - * Y = (6969 * R + 23434 * G + 2365 * B)/32768 - * - * The calculation is to be done in a linear colorspace. - * - * Other integer coefficents can be used via png_set_rgb_to_gray(). - */ -int /* PRIVATE */ -png_do_rgb_to_gray(png_structp png_ptr, png_row_infop row_info, png_bytep row) - -{ - png_uint_32 i; - - png_uint_32 row_width = row_info->width; - int rgb_error = 0; - - png_debug(1, "in png_do_rgb_to_gray\n"); - if ( -#if defined(PNG_USELESS_TESTS_SUPPORTED) - row != NULL && row_info != NULL && -#endif - (row_info->color_type & PNG_COLOR_MASK_COLOR)) - { - png_uint_32 rc = png_ptr->rgb_to_gray_red_coeff; - png_uint_32 gc = png_ptr->rgb_to_gray_green_coeff; - png_uint_32 bc = png_ptr->rgb_to_gray_blue_coeff; - - if (row_info->color_type == PNG_COLOR_TYPE_RGB) - { - if (row_info->bit_depth == 8) - { -#if defined(PNG_READ_GAMMA_SUPPORTED) || defined(PNG_READ_BACKGROUND_SUPPORTED) - if (png_ptr->gamma_from_1 != NULL && png_ptr->gamma_to_1 != NULL) - { - png_bytep sp = row; - png_bytep dp = row; - - for (i = 0; i < row_width; i++) - { - png_byte red = png_ptr->gamma_to_1[*(sp++)]; - png_byte green = png_ptr->gamma_to_1[*(sp++)]; - png_byte blue = png_ptr->gamma_to_1[*(sp++)]; - if(red != green || red != blue) - { - rgb_error |= 1; - *(dp++) = png_ptr->gamma_from_1[ - (rc*red+gc*green+bc*blue)>>15]; - } - else - *(dp++) = *(sp-1); - } - } - else -#endif - { - png_bytep sp = row; - png_bytep dp = row; - for (i = 0; i < row_width; i++) - { - png_byte red = *(sp++); - png_byte green = *(sp++); - png_byte blue = *(sp++); - if(red != green || red != blue) - { - rgb_error |= 1; - *(dp++) = (png_byte)((rc*red+gc*green+bc*blue)>>15); - } - else - *(dp++) = *(sp-1); - } - } - } - - else /* RGB bit_depth == 16 */ - { -#if defined(PNG_READ_GAMMA_SUPPORTED) || defined(PNG_READ_BACKGROUND_SUPPORTED) - if (png_ptr->gamma_16_to_1 != NULL && - png_ptr->gamma_16_from_1 != NULL) - { - png_bytep sp = row; - png_bytep dp = row; - for (i = 0; i < row_width; i++) - { - png_uint_16 red, green, blue, w; - - red = (png_uint_16)(((*(sp))<<8) | *(sp+1)); sp+=2; - green = (png_uint_16)(((*(sp))<<8) | *(sp+1)); sp+=2; - blue = (png_uint_16)(((*(sp))<<8) | *(sp+1)); sp+=2; - - if(red == green && red == blue) - w = red; - else - { - png_uint_16 red_1 = png_ptr->gamma_16_to_1[(red&0xff) >> - png_ptr->gamma_shift][red>>8]; - png_uint_16 green_1 = png_ptr->gamma_16_to_1[(green&0xff) >> - png_ptr->gamma_shift][green>>8]; - png_uint_16 blue_1 = png_ptr->gamma_16_to_1[(blue&0xff) >> - png_ptr->gamma_shift][blue>>8]; - png_uint_16 gray16 = (png_uint_16)((rc*red_1 + gc*green_1 - + bc*blue_1)>>15); - w = png_ptr->gamma_16_from_1[(gray16&0xff) >> - png_ptr->gamma_shift][gray16 >> 8]; - rgb_error |= 1; - } - - *(dp++) = (png_byte)((w>>8) & 0xff); - *(dp++) = (png_byte)(w & 0xff); - } - } - else -#endif - { - png_bytep sp = row; - png_bytep dp = row; - for (i = 0; i < row_width; i++) - { - png_uint_16 red, green, blue, gray16; - - red = (png_uint_16)(((*(sp))<<8) | *(sp+1)); sp+=2; - green = (png_uint_16)(((*(sp))<<8) | *(sp+1)); sp+=2; - blue = (png_uint_16)(((*(sp))<<8) | *(sp+1)); sp+=2; - - if(red != green || red != blue) - rgb_error |= 1; - gray16 = (png_uint_16)((rc*red + gc*green + bc*blue)>>15); - *(dp++) = (png_byte)((gray16>>8) & 0xff); - *(dp++) = (png_byte)(gray16 & 0xff); - } - } - } - } - if (row_info->color_type == PNG_COLOR_TYPE_RGB_ALPHA) - { - if (row_info->bit_depth == 8) - { -#if defined(PNG_READ_GAMMA_SUPPORTED) || defined(PNG_READ_BACKGROUND_SUPPORTED) - if (png_ptr->gamma_from_1 != NULL && png_ptr->gamma_to_1 != NULL) - { - png_bytep sp = row; - png_bytep dp = row; - for (i = 0; i < row_width; i++) - { - png_byte red = png_ptr->gamma_to_1[*(sp++)]; - png_byte green = png_ptr->gamma_to_1[*(sp++)]; - png_byte blue = png_ptr->gamma_to_1[*(sp++)]; - if(red != green || red != blue) - rgb_error |= 1; - *(dp++) = png_ptr->gamma_from_1 - [(rc*red + gc*green + bc*blue)>>15]; - *(dp++) = *(sp++); /* alpha */ - } - } - else -#endif - { - png_bytep sp = row; - png_bytep dp = row; - for (i = 0; i < row_width; i++) - { - png_byte red = *(sp++); - png_byte green = *(sp++); - png_byte blue = *(sp++); - if(red != green || red != blue) - rgb_error |= 1; - *(dp++) = (png_byte)((rc*red + gc*green + bc*blue)>>15); - *(dp++) = *(sp++); /* alpha */ - } - } - } - else /* RGBA bit_depth == 16 */ - { -#if defined(PNG_READ_GAMMA_SUPPORTED) || defined(PNG_READ_BACKGROUND_SUPPORTED) - if (png_ptr->gamma_16_to_1 != NULL && - png_ptr->gamma_16_from_1 != NULL) - { - png_bytep sp = row; - png_bytep dp = row; - for (i = 0; i < row_width; i++) - { - png_uint_16 red, green, blue, w; - - red = (png_uint_16)(((*(sp))<<8) | *(sp+1)); sp+=2; - green = (png_uint_16)(((*(sp))<<8) | *(sp+1)); sp+=2; - blue = (png_uint_16)(((*(sp))<<8) | *(sp+1)); sp+=2; - - if(red == green && red == blue) - w = red; - else - { - png_uint_16 red_1 = png_ptr->gamma_16_to_1[(red&0xff) >> - png_ptr->gamma_shift][red>>8]; - png_uint_16 green_1 = png_ptr->gamma_16_to_1[(green&0xff) >> - png_ptr->gamma_shift][green>>8]; - png_uint_16 blue_1 = png_ptr->gamma_16_to_1[(blue&0xff) >> - png_ptr->gamma_shift][blue>>8]; - png_uint_16 gray16 = (png_uint_16)((rc * red_1 - + gc * green_1 + bc * blue_1)>>15); - w = png_ptr->gamma_16_from_1[(gray16&0xff) >> - png_ptr->gamma_shift][gray16 >> 8]; - rgb_error |= 1; - } - - *(dp++) = (png_byte)((w>>8) & 0xff); - *(dp++) = (png_byte)(w & 0xff); - *(dp++) = *(sp++); /* alpha */ - *(dp++) = *(sp++); - } - } - else -#endif - { - png_bytep sp = row; - png_bytep dp = row; - for (i = 0; i < row_width; i++) - { - png_uint_16 red, green, blue, gray16; - red = (png_uint_16)((*(sp)<<8) | *(sp+1)); sp+=2; - green = (png_uint_16)((*(sp)<<8) | *(sp+1)); sp+=2; - blue = (png_uint_16)((*(sp)<<8) | *(sp+1)); sp+=2; - if(red != green || red != blue) - rgb_error |= 1; - gray16 = (png_uint_16)((rc*red + gc*green + bc*blue)>>15); - *(dp++) = (png_byte)((gray16>>8) & 0xff); - *(dp++) = (png_byte)(gray16 & 0xff); - *(dp++) = *(sp++); /* alpha */ - *(dp++) = *(sp++); - } - } - } - } - row_info->channels -= (png_byte)2; - row_info->color_type &= ~PNG_COLOR_MASK_COLOR; - row_info->pixel_depth = (png_byte)(row_info->channels * - row_info->bit_depth); - row_info->rowbytes = PNG_ROWBYTES(row_info->pixel_depth,row_width); - } - return rgb_error; -} -#endif - -/* Build a grayscale palette. Palette is assumed to be 1 << bit_depth - * large of png_color. This lets grayscale images be treated as - * paletted. Most useful for gamma correction and simplification - * of code. - */ -void PNGAPI -png_build_grayscale_palette(int bit_depth, png_colorp palette) -{ - int num_palette; - int color_inc; - int i; - int v; - - png_debug(1, "in png_do_build_grayscale_palette\n"); - if (palette == NULL) - return; - - switch (bit_depth) - { - case 1: - num_palette = 2; - color_inc = 0xff; - break; - case 2: - num_palette = 4; - color_inc = 0x55; - break; - case 4: - num_palette = 16; - color_inc = 0x11; - break; - case 8: - num_palette = 256; - color_inc = 1; - break; - default: - num_palette = 0; - color_inc = 0; - break; - } - - for (i = 0, v = 0; i < num_palette; i++, v += color_inc) - { - palette[i].red = (png_byte)v; - palette[i].green = (png_byte)v; - palette[i].blue = (png_byte)v; - } -} - -/* This function is currently unused. Do we really need it? */ -#if defined(PNG_READ_DITHER_SUPPORTED) && defined(PNG_CORRECT_PALETTE_SUPPORTED) -void /* PRIVATE */ -png_correct_palette(png_structp png_ptr, png_colorp palette, - int num_palette) -{ - png_debug(1, "in png_correct_palette\n"); -#if defined(PNG_READ_BACKGROUND_SUPPORTED) && \ - defined(PNG_READ_GAMMA_SUPPORTED) && defined(PNG_FLOATING_POINT_SUPPORTED) - if (png_ptr->transformations & (PNG_GAMMA | PNG_BACKGROUND)) - { - png_color back, back_1; - - if (png_ptr->background_gamma_type == PNG_BACKGROUND_GAMMA_FILE) - { - back.red = png_ptr->gamma_table[png_ptr->background.red]; - back.green = png_ptr->gamma_table[png_ptr->background.green]; - back.blue = png_ptr->gamma_table[png_ptr->background.blue]; - - back_1.red = png_ptr->gamma_to_1[png_ptr->background.red]; - back_1.green = png_ptr->gamma_to_1[png_ptr->background.green]; - back_1.blue = png_ptr->gamma_to_1[png_ptr->background.blue]; - } - else - { - double g; - - g = 1.0 / (png_ptr->background_gamma * png_ptr->screen_gamma); - - if (png_ptr->background_gamma_type == PNG_BACKGROUND_GAMMA_SCREEN || - fabs(g - 1.0) < PNG_GAMMA_THRESHOLD) - { - back.red = png_ptr->background.red; - back.green = png_ptr->background.green; - back.blue = png_ptr->background.blue; - } - else - { - back.red = - (png_byte)(pow((double)png_ptr->background.red/255, g) * - 255.0 + 0.5); - back.green = - (png_byte)(pow((double)png_ptr->background.green/255, g) * - 255.0 + 0.5); - back.blue = - (png_byte)(pow((double)png_ptr->background.blue/255, g) * - 255.0 + 0.5); - } - - g = 1.0 / png_ptr->background_gamma; - - back_1.red = - (png_byte)(pow((double)png_ptr->background.red/255, g) * - 255.0 + 0.5); - back_1.green = - (png_byte)(pow((double)png_ptr->background.green/255, g) * - 255.0 + 0.5); - back_1.blue = - (png_byte)(pow((double)png_ptr->background.blue/255, g) * - 255.0 + 0.5); - } - - if (png_ptr->color_type == PNG_COLOR_TYPE_PALETTE) - { - png_uint_32 i; - - for (i = 0; i < (png_uint_32)num_palette; i++) - { - if (i < png_ptr->num_trans && png_ptr->trans[i] == 0) - { - palette[i] = back; - } - else if (i < png_ptr->num_trans && png_ptr->trans[i] != 0xff) - { - png_byte v, w; - - v = png_ptr->gamma_to_1[png_ptr->palette[i].red]; - png_composite(w, v, png_ptr->trans[i], back_1.red); - palette[i].red = png_ptr->gamma_from_1[w]; - - v = png_ptr->gamma_to_1[png_ptr->palette[i].green]; - png_composite(w, v, png_ptr->trans[i], back_1.green); - palette[i].green = png_ptr->gamma_from_1[w]; - - v = png_ptr->gamma_to_1[png_ptr->palette[i].blue]; - png_composite(w, v, png_ptr->trans[i], back_1.blue); - palette[i].blue = png_ptr->gamma_from_1[w]; - } - else - { - palette[i].red = png_ptr->gamma_table[palette[i].red]; - palette[i].green = png_ptr->gamma_table[palette[i].green]; - palette[i].blue = png_ptr->gamma_table[palette[i].blue]; - } - } - } - else - { - int i; - - for (i = 0; i < num_palette; i++) - { - if (palette[i].red == (png_byte)png_ptr->trans_values.gray) - { - palette[i] = back; - } - else - { - palette[i].red = png_ptr->gamma_table[palette[i].red]; - palette[i].green = png_ptr->gamma_table[palette[i].green]; - palette[i].blue = png_ptr->gamma_table[palette[i].blue]; - } - } - } - } - else -#endif -#if defined(PNG_READ_GAMMA_SUPPORTED) - if (png_ptr->transformations & PNG_GAMMA) - { - int i; - - for (i = 0; i < num_palette; i++) - { - palette[i].red = png_ptr->gamma_table[palette[i].red]; - palette[i].green = png_ptr->gamma_table[palette[i].green]; - palette[i].blue = png_ptr->gamma_table[palette[i].blue]; - } - } -#if defined(PNG_READ_BACKGROUND_SUPPORTED) - else -#endif -#endif -#if defined(PNG_READ_BACKGROUND_SUPPORTED) - if (png_ptr->transformations & PNG_BACKGROUND) - { - if (png_ptr->color_type == PNG_COLOR_TYPE_PALETTE) - { - png_color back; - - back.red = (png_byte)png_ptr->background.red; - back.green = (png_byte)png_ptr->background.green; - back.blue = (png_byte)png_ptr->background.blue; - - for (i = 0; i < (int)png_ptr->num_trans; i++) - { - if (png_ptr->trans[i] == 0) - { - palette[i].red = back.red; - palette[i].green = back.green; - palette[i].blue = back.blue; - } - else if (png_ptr->trans[i] != 0xff) - { - png_composite(palette[i].red, png_ptr->palette[i].red, - png_ptr->trans[i], back.red); - png_composite(palette[i].green, png_ptr->palette[i].green, - png_ptr->trans[i], back.green); - png_composite(palette[i].blue, png_ptr->palette[i].blue, - png_ptr->trans[i], back.blue); - } - } - } - else /* assume grayscale palette (what else could it be?) */ - { - int i; - - for (i = 0; i < num_palette; i++) - { - if (i == (png_byte)png_ptr->trans_values.gray) - { - palette[i].red = (png_byte)png_ptr->background.red; - palette[i].green = (png_byte)png_ptr->background.green; - palette[i].blue = (png_byte)png_ptr->background.blue; - } - } - } - } -#endif -} -#endif - -#if defined(PNG_READ_BACKGROUND_SUPPORTED) -/* Replace any alpha or transparency with the supplied background color. - * "background" is already in the screen gamma, while "background_1" is - * at a gamma of 1.0. Paletted files have already been taken care of. - */ -void /* PRIVATE */ -png_do_background(png_row_infop row_info, png_bytep row, - png_color_16p trans_values, png_color_16p background -#if defined(PNG_READ_GAMMA_SUPPORTED) - , png_color_16p background_1, - png_bytep gamma_table, png_bytep gamma_from_1, png_bytep gamma_to_1, - png_uint_16pp gamma_16, png_uint_16pp gamma_16_from_1, - png_uint_16pp gamma_16_to_1, int gamma_shift -#endif - ) -{ - png_bytep sp, dp; - png_uint_32 i; - png_uint_32 row_width=row_info->width; - int shift; - - png_debug(1, "in png_do_background\n"); - if (background != NULL && -#if defined(PNG_USELESS_TESTS_SUPPORTED) - row != NULL && row_info != NULL && -#endif - (!(row_info->color_type & PNG_COLOR_MASK_ALPHA) || - (row_info->color_type != PNG_COLOR_TYPE_PALETTE && trans_values))) - { - switch (row_info->color_type) - { - case PNG_COLOR_TYPE_GRAY: - { - switch (row_info->bit_depth) - { - case 1: - { - sp = row; - shift = 7; - for (i = 0; i < row_width; i++) - { - if ((png_uint_16)((*sp >> shift) & 0x01) - == trans_values->gray) - { - *sp &= (png_byte)((0x7f7f >> (7 - shift)) & 0xff); - *sp |= (png_byte)(background->gray << shift); - } - if (!shift) - { - shift = 7; - sp++; - } - else - shift--; - } - break; - } - case 2: - { -#if defined(PNG_READ_GAMMA_SUPPORTED) - if (gamma_table != NULL) - { - sp = row; - shift = 6; - for (i = 0; i < row_width; i++) - { - if ((png_uint_16)((*sp >> shift) & 0x03) - == trans_values->gray) - { - *sp &= (png_byte)((0x3f3f >> (6 - shift)) & 0xff); - *sp |= (png_byte)(background->gray << shift); - } - else - { - png_byte p = (png_byte)((*sp >> shift) & 0x03); - png_byte g = (png_byte)((gamma_table [p | (p << 2) | - (p << 4) | (p << 6)] >> 6) & 0x03); - *sp &= (png_byte)((0x3f3f >> (6 - shift)) & 0xff); - *sp |= (png_byte)(g << shift); - } - if (!shift) - { - shift = 6; - sp++; - } - else - shift -= 2; - } - } - else -#endif - { - sp = row; - shift = 6; - for (i = 0; i < row_width; i++) - { - if ((png_uint_16)((*sp >> shift) & 0x03) - == trans_values->gray) - { - *sp &= (png_byte)((0x3f3f >> (6 - shift)) & 0xff); - *sp |= (png_byte)(background->gray << shift); - } - if (!shift) - { - shift = 6; - sp++; - } - else - shift -= 2; - } - } - break; - } - case 4: - { -#if defined(PNG_READ_GAMMA_SUPPORTED) - if (gamma_table != NULL) - { - sp = row; - shift = 4; - for (i = 0; i < row_width; i++) - { - if ((png_uint_16)((*sp >> shift) & 0x0f) - == trans_values->gray) - { - *sp &= (png_byte)((0xf0f >> (4 - shift)) & 0xff); - *sp |= (png_byte)(background->gray << shift); - } - else - { - png_byte p = (png_byte)((*sp >> shift) & 0x0f); - png_byte g = (png_byte)((gamma_table[p | - (p << 4)] >> 4) & 0x0f); - *sp &= (png_byte)((0xf0f >> (4 - shift)) & 0xff); - *sp |= (png_byte)(g << shift); - } - if (!shift) - { - shift = 4; - sp++; - } - else - shift -= 4; - } - } - else -#endif - { - sp = row; - shift = 4; - for (i = 0; i < row_width; i++) - { - if ((png_uint_16)((*sp >> shift) & 0x0f) - == trans_values->gray) - { - *sp &= (png_byte)((0xf0f >> (4 - shift)) & 0xff); - *sp |= (png_byte)(background->gray << shift); - } - if (!shift) - { - shift = 4; - sp++; - } - else - shift -= 4; - } - } - break; - } - case 8: - { -#if defined(PNG_READ_GAMMA_SUPPORTED) - if (gamma_table != NULL) - { - sp = row; - for (i = 0; i < row_width; i++, sp++) - { - if (*sp == trans_values->gray) - { - *sp = (png_byte)background->gray; - } - else - { - *sp = gamma_table[*sp]; - } - } - } - else -#endif - { - sp = row; - for (i = 0; i < row_width; i++, sp++) - { - if (*sp == trans_values->gray) - { - *sp = (png_byte)background->gray; - } - } - } - break; - } - case 16: - { -#if defined(PNG_READ_GAMMA_SUPPORTED) - if (gamma_16 != NULL) - { - sp = row; - for (i = 0; i < row_width; i++, sp += 2) - { - png_uint_16 v; - - v = (png_uint_16)(((*sp) << 8) + *(sp + 1)); - if (v == trans_values->gray) - { - /* background is already in screen gamma */ - *sp = (png_byte)((background->gray >> 8) & 0xff); - *(sp + 1) = (png_byte)(background->gray & 0xff); - } - else - { - v = gamma_16[*(sp + 1) >> gamma_shift][*sp]; - *sp = (png_byte)((v >> 8) & 0xff); - *(sp + 1) = (png_byte)(v & 0xff); - } - } - } - else -#endif - { - sp = row; - for (i = 0; i < row_width; i++, sp += 2) - { - png_uint_16 v; - - v = (png_uint_16)(((*sp) << 8) + *(sp + 1)); - if (v == trans_values->gray) - { - *sp = (png_byte)((background->gray >> 8) & 0xff); - *(sp + 1) = (png_byte)(background->gray & 0xff); - } - } - } - break; - } - } - break; - } - case PNG_COLOR_TYPE_RGB: - { - if (row_info->bit_depth == 8) - { -#if defined(PNG_READ_GAMMA_SUPPORTED) - if (gamma_table != NULL) - { - sp = row; - for (i = 0; i < row_width; i++, sp += 3) - { - if (*sp == trans_values->red && - *(sp + 1) == trans_values->green && - *(sp + 2) == trans_values->blue) - { - *sp = (png_byte)background->red; - *(sp + 1) = (png_byte)background->green; - *(sp + 2) = (png_byte)background->blue; - } - else - { - *sp = gamma_table[*sp]; - *(sp + 1) = gamma_table[*(sp + 1)]; - *(sp + 2) = gamma_table[*(sp + 2)]; - } - } - } - else -#endif - { - sp = row; - for (i = 0; i < row_width; i++, sp += 3) - { - if (*sp == trans_values->red && - *(sp + 1) == trans_values->green && - *(sp + 2) == trans_values->blue) - { - *sp = (png_byte)background->red; - *(sp + 1) = (png_byte)background->green; - *(sp + 2) = (png_byte)background->blue; - } - } - } - } - else /* if (row_info->bit_depth == 16) */ - { -#if defined(PNG_READ_GAMMA_SUPPORTED) - if (gamma_16 != NULL) - { - sp = row; - for (i = 0; i < row_width; i++, sp += 6) - { - png_uint_16 r = (png_uint_16)(((*sp) << 8) + *(sp + 1)); - png_uint_16 g = (png_uint_16)(((*(sp+2)) << 8) + *(sp+3)); - png_uint_16 b = (png_uint_16)(((*(sp+4)) << 8) + *(sp+5)); - if (r == trans_values->red && g == trans_values->green && - b == trans_values->blue) - { - /* background is already in screen gamma */ - *sp = (png_byte)((background->red >> 8) & 0xff); - *(sp + 1) = (png_byte)(background->red & 0xff); - *(sp + 2) = (png_byte)((background->green >> 8) & 0xff); - *(sp + 3) = (png_byte)(background->green & 0xff); - *(sp + 4) = (png_byte)((background->blue >> 8) & 0xff); - *(sp + 5) = (png_byte)(background->blue & 0xff); - } - else - { - png_uint_16 v = gamma_16[*(sp + 1) >> gamma_shift][*sp]; - *sp = (png_byte)((v >> 8) & 0xff); - *(sp + 1) = (png_byte)(v & 0xff); - v = gamma_16[*(sp + 3) >> gamma_shift][*(sp + 2)]; - *(sp + 2) = (png_byte)((v >> 8) & 0xff); - *(sp + 3) = (png_byte)(v & 0xff); - v = gamma_16[*(sp + 5) >> gamma_shift][*(sp + 4)]; - *(sp + 4) = (png_byte)((v >> 8) & 0xff); - *(sp + 5) = (png_byte)(v & 0xff); - } - } - } - else -#endif - { - sp = row; - for (i = 0; i < row_width; i++, sp += 6) - { - png_uint_16 r = (png_uint_16)(((*sp) << 8) + *(sp+1)); - png_uint_16 g = (png_uint_16)(((*(sp+2)) << 8) + *(sp+3)); - png_uint_16 b = (png_uint_16)(((*(sp+4)) << 8) + *(sp+5)); - - if (r == trans_values->red && g == trans_values->green && - b == trans_values->blue) - { - *sp = (png_byte)((background->red >> 8) & 0xff); - *(sp + 1) = (png_byte)(background->red & 0xff); - *(sp + 2) = (png_byte)((background->green >> 8) & 0xff); - *(sp + 3) = (png_byte)(background->green & 0xff); - *(sp + 4) = (png_byte)((background->blue >> 8) & 0xff); - *(sp + 5) = (png_byte)(background->blue & 0xff); - } - } - } - } - break; - } - case PNG_COLOR_TYPE_GRAY_ALPHA: - { - if (row_info->bit_depth == 8) - { -#if defined(PNG_READ_GAMMA_SUPPORTED) - if (gamma_to_1 != NULL && gamma_from_1 != NULL && - gamma_table != NULL) - { - sp = row; - dp = row; - for (i = 0; i < row_width; i++, sp += 2, dp++) - { - png_uint_16 a = *(sp + 1); - - if (a == 0xff) - { - *dp = gamma_table[*sp]; - } - else if (a == 0) - { - /* background is already in screen gamma */ - *dp = (png_byte)background->gray; - } - else - { - png_byte v, w; - - v = gamma_to_1[*sp]; - png_composite(w, v, a, background_1->gray); - *dp = gamma_from_1[w]; - } - } - } - else -#endif - { - sp = row; - dp = row; - for (i = 0; i < row_width; i++, sp += 2, dp++) - { - png_byte a = *(sp + 1); - - if (a == 0xff) - { - *dp = *sp; - } -#if defined(PNG_READ_GAMMA_SUPPORTED) - else if (a == 0) - { - *dp = (png_byte)background->gray; - } - else - { - png_composite(*dp, *sp, a, background_1->gray); - } -#else - *dp = (png_byte)background->gray; -#endif - } - } - } - else /* if (png_ptr->bit_depth == 16) */ - { -#if defined(PNG_READ_GAMMA_SUPPORTED) - if (gamma_16 != NULL && gamma_16_from_1 != NULL && - gamma_16_to_1 != NULL) - { - sp = row; - dp = row; - for (i = 0; i < row_width; i++, sp += 4, dp += 2) - { - png_uint_16 a = (png_uint_16)(((*(sp+2)) << 8) + *(sp+3)); - - if (a == (png_uint_16)0xffff) - { - png_uint_16 v; - - v = gamma_16[*(sp + 1) >> gamma_shift][*sp]; - *dp = (png_byte)((v >> 8) & 0xff); - *(dp + 1) = (png_byte)(v & 0xff); - } -#if defined(PNG_READ_GAMMA_SUPPORTED) - else if (a == 0) -#else - else -#endif - { - /* background is already in screen gamma */ - *dp = (png_byte)((background->gray >> 8) & 0xff); - *(dp + 1) = (png_byte)(background->gray & 0xff); - } -#if defined(PNG_READ_GAMMA_SUPPORTED) - else - { - png_uint_16 g, v, w; - - g = gamma_16_to_1[*(sp + 1) >> gamma_shift][*sp]; - png_composite_16(v, g, a, background_1->gray); - w = gamma_16_from_1[(v&0xff) >> gamma_shift][v >> 8]; - *dp = (png_byte)((w >> 8) & 0xff); - *(dp + 1) = (png_byte)(w & 0xff); - } -#endif - } - } - else -#endif - { - sp = row; - dp = row; - for (i = 0; i < row_width; i++, sp += 4, dp += 2) - { - png_uint_16 a = (png_uint_16)(((*(sp+2)) << 8) + *(sp+3)); - if (a == (png_uint_16)0xffff) - { - png_memcpy(dp, sp, 2); - } -#if defined(PNG_READ_GAMMA_SUPPORTED) - else if (a == 0) -#else - else -#endif - { - *dp = (png_byte)((background->gray >> 8) & 0xff); - *(dp + 1) = (png_byte)(background->gray & 0xff); - } -#if defined(PNG_READ_GAMMA_SUPPORTED) - else - { - png_uint_16 g, v; - - g = (png_uint_16)(((*sp) << 8) + *(sp + 1)); - png_composite_16(v, g, a, background_1->gray); - *dp = (png_byte)((v >> 8) & 0xff); - *(dp + 1) = (png_byte)(v & 0xff); - } -#endif - } - } - } - break; - } - case PNG_COLOR_TYPE_RGB_ALPHA: - { - if (row_info->bit_depth == 8) - { -#if defined(PNG_READ_GAMMA_SUPPORTED) - if (gamma_to_1 != NULL && gamma_from_1 != NULL && - gamma_table != NULL) - { - sp = row; - dp = row; - for (i = 0; i < row_width; i++, sp += 4, dp += 3) - { - png_byte a = *(sp + 3); - - if (a == 0xff) - { - *dp = gamma_table[*sp]; - *(dp + 1) = gamma_table[*(sp + 1)]; - *(dp + 2) = gamma_table[*(sp + 2)]; - } - else if (a == 0) - { - /* background is already in screen gamma */ - *dp = (png_byte)background->red; - *(dp + 1) = (png_byte)background->green; - *(dp + 2) = (png_byte)background->blue; - } - else - { - png_byte v, w; - - v = gamma_to_1[*sp]; - png_composite(w, v, a, background_1->red); - *dp = gamma_from_1[w]; - v = gamma_to_1[*(sp + 1)]; - png_composite(w, v, a, background_1->green); - *(dp + 1) = gamma_from_1[w]; - v = gamma_to_1[*(sp + 2)]; - png_composite(w, v, a, background_1->blue); - *(dp + 2) = gamma_from_1[w]; - } - } - } - else -#endif - { - sp = row; - dp = row; - for (i = 0; i < row_width; i++, sp += 4, dp += 3) - { - png_byte a = *(sp + 3); - - if (a == 0xff) - { - *dp = *sp; - *(dp + 1) = *(sp + 1); - *(dp + 2) = *(sp + 2); - } - else if (a == 0) - { - *dp = (png_byte)background->red; - *(dp + 1) = (png_byte)background->green; - *(dp + 2) = (png_byte)background->blue; - } - else - { - png_composite(*dp, *sp, a, background->red); - png_composite(*(dp + 1), *(sp + 1), a, - background->green); - png_composite(*(dp + 2), *(sp + 2), a, - background->blue); - } - } - } - } - else /* if (row_info->bit_depth == 16) */ - { -#if defined(PNG_READ_GAMMA_SUPPORTED) - if (gamma_16 != NULL && gamma_16_from_1 != NULL && - gamma_16_to_1 != NULL) - { - sp = row; - dp = row; - for (i = 0; i < row_width; i++, sp += 8, dp += 6) - { - png_uint_16 a = (png_uint_16)(((png_uint_16)(*(sp + 6)) - << 8) + (png_uint_16)(*(sp + 7))); - if (a == (png_uint_16)0xffff) - { - png_uint_16 v; - - v = gamma_16[*(sp + 1) >> gamma_shift][*sp]; - *dp = (png_byte)((v >> 8) & 0xff); - *(dp + 1) = (png_byte)(v & 0xff); - v = gamma_16[*(sp + 3) >> gamma_shift][*(sp + 2)]; - *(dp + 2) = (png_byte)((v >> 8) & 0xff); - *(dp + 3) = (png_byte)(v & 0xff); - v = gamma_16[*(sp + 5) >> gamma_shift][*(sp + 4)]; - *(dp + 4) = (png_byte)((v >> 8) & 0xff); - *(dp + 5) = (png_byte)(v & 0xff); - } - else if (a == 0) - { - /* background is already in screen gamma */ - *dp = (png_byte)((background->red >> 8) & 0xff); - *(dp + 1) = (png_byte)(background->red & 0xff); - *(dp + 2) = (png_byte)((background->green >> 8) & 0xff); - *(dp + 3) = (png_byte)(background->green & 0xff); - *(dp + 4) = (png_byte)((background->blue >> 8) & 0xff); - *(dp + 5) = (png_byte)(background->blue & 0xff); - } - else - { - png_uint_16 v, w, x; - - v = gamma_16_to_1[*(sp + 1) >> gamma_shift][*sp]; - png_composite_16(w, v, a, background_1->red); - x = gamma_16_from_1[((w&0xff) >> gamma_shift)][w >> 8]; - *dp = (png_byte)((x >> 8) & 0xff); - *(dp + 1) = (png_byte)(x & 0xff); - v = gamma_16_to_1[*(sp + 3) >> gamma_shift][*(sp + 2)]; - png_composite_16(w, v, a, background_1->green); - x = gamma_16_from_1[((w&0xff) >> gamma_shift)][w >> 8]; - *(dp + 2) = (png_byte)((x >> 8) & 0xff); - *(dp + 3) = (png_byte)(x & 0xff); - v = gamma_16_to_1[*(sp + 5) >> gamma_shift][*(sp + 4)]; - png_composite_16(w, v, a, background_1->blue); - x = gamma_16_from_1[(w & 0xff) >> gamma_shift][w >> 8]; - *(dp + 4) = (png_byte)((x >> 8) & 0xff); - *(dp + 5) = (png_byte)(x & 0xff); - } - } - } - else -#endif - { - sp = row; - dp = row; - for (i = 0; i < row_width; i++, sp += 8, dp += 6) - { - png_uint_16 a = (png_uint_16)(((png_uint_16)(*(sp + 6)) - << 8) + (png_uint_16)(*(sp + 7))); - if (a == (png_uint_16)0xffff) - { - png_memcpy(dp, sp, 6); - } - else if (a == 0) - { - *dp = (png_byte)((background->red >> 8) & 0xff); - *(dp + 1) = (png_byte)(background->red & 0xff); - *(dp + 2) = (png_byte)((background->green >> 8) & 0xff); - *(dp + 3) = (png_byte)(background->green & 0xff); - *(dp + 4) = (png_byte)((background->blue >> 8) & 0xff); - *(dp + 5) = (png_byte)(background->blue & 0xff); - } - else - { - png_uint_16 v; - - png_uint_16 r = (png_uint_16)(((*sp) << 8) + *(sp + 1)); - png_uint_16 g = (png_uint_16)(((*(sp + 2)) << 8) - + *(sp + 3)); - png_uint_16 b = (png_uint_16)(((*(sp + 4)) << 8) - + *(sp + 5)); - - png_composite_16(v, r, a, background->red); - *dp = (png_byte)((v >> 8) & 0xff); - *(dp + 1) = (png_byte)(v & 0xff); - png_composite_16(v, g, a, background->green); - *(dp + 2) = (png_byte)((v >> 8) & 0xff); - *(dp + 3) = (png_byte)(v & 0xff); - png_composite_16(v, b, a, background->blue); - *(dp + 4) = (png_byte)((v >> 8) & 0xff); - *(dp + 5) = (png_byte)(v & 0xff); - } - } - } - } - break; - } - } - - if (row_info->color_type & PNG_COLOR_MASK_ALPHA) - { - row_info->color_type &= ~PNG_COLOR_MASK_ALPHA; - row_info->channels--; - row_info->pixel_depth = (png_byte)(row_info->channels * - row_info->bit_depth); - row_info->rowbytes = PNG_ROWBYTES(row_info->pixel_depth,row_width); - } - } -} -#endif - -#if defined(PNG_READ_GAMMA_SUPPORTED) -/* Gamma correct the image, avoiding the alpha channel. Make sure - * you do this after you deal with the transparency issue on grayscale - * or RGB images. If your bit depth is 8, use gamma_table, if it - * is 16, use gamma_16_table and gamma_shift. Build these with - * build_gamma_table(). - */ -void /* PRIVATE */ -png_do_gamma(png_row_infop row_info, png_bytep row, - png_bytep gamma_table, png_uint_16pp gamma_16_table, - int gamma_shift) -{ - png_bytep sp; - png_uint_32 i; - png_uint_32 row_width=row_info->width; - - png_debug(1, "in png_do_gamma\n"); - if ( -#if defined(PNG_USELESS_TESTS_SUPPORTED) - row != NULL && row_info != NULL && -#endif - ((row_info->bit_depth <= 8 && gamma_table != NULL) || - (row_info->bit_depth == 16 && gamma_16_table != NULL))) - { - switch (row_info->color_type) - { - case PNG_COLOR_TYPE_RGB: - { - if (row_info->bit_depth == 8) - { - sp = row; - for (i = 0; i < row_width; i++) - { - *sp = gamma_table[*sp]; - sp++; - *sp = gamma_table[*sp]; - sp++; - *sp = gamma_table[*sp]; - sp++; - } - } - else /* if (row_info->bit_depth == 16) */ - { - sp = row; - for (i = 0; i < row_width; i++) - { - png_uint_16 v; - - v = gamma_16_table[*(sp + 1) >> gamma_shift][*sp]; - *sp = (png_byte)((v >> 8) & 0xff); - *(sp + 1) = (png_byte)(v & 0xff); - sp += 2; - v = gamma_16_table[*(sp + 1) >> gamma_shift][*sp]; - *sp = (png_byte)((v >> 8) & 0xff); - *(sp + 1) = (png_byte)(v & 0xff); - sp += 2; - v = gamma_16_table[*(sp + 1) >> gamma_shift][*sp]; - *sp = (png_byte)((v >> 8) & 0xff); - *(sp + 1) = (png_byte)(v & 0xff); - sp += 2; - } - } - break; - } - case PNG_COLOR_TYPE_RGB_ALPHA: - { - if (row_info->bit_depth == 8) - { - sp = row; - for (i = 0; i < row_width; i++) - { - *sp = gamma_table[*sp]; - sp++; - *sp = gamma_table[*sp]; - sp++; - *sp = gamma_table[*sp]; - sp++; - sp++; - } - } - else /* if (row_info->bit_depth == 16) */ - { - sp = row; - for (i = 0; i < row_width; i++) - { - png_uint_16 v = gamma_16_table[*(sp + 1) >> gamma_shift][*sp]; - *sp = (png_byte)((v >> 8) & 0xff); - *(sp + 1) = (png_byte)(v & 0xff); - sp += 2; - v = gamma_16_table[*(sp + 1) >> gamma_shift][*sp]; - *sp = (png_byte)((v >> 8) & 0xff); - *(sp + 1) = (png_byte)(v & 0xff); - sp += 2; - v = gamma_16_table[*(sp + 1) >> gamma_shift][*sp]; - *sp = (png_byte)((v >> 8) & 0xff); - *(sp + 1) = (png_byte)(v & 0xff); - sp += 4; - } - } - break; - } - case PNG_COLOR_TYPE_GRAY_ALPHA: - { - if (row_info->bit_depth == 8) - { - sp = row; - for (i = 0; i < row_width; i++) - { - *sp = gamma_table[*sp]; - sp += 2; - } - } - else /* if (row_info->bit_depth == 16) */ - { - sp = row; - for (i = 0; i < row_width; i++) - { - png_uint_16 v = gamma_16_table[*(sp + 1) >> gamma_shift][*sp]; - *sp = (png_byte)((v >> 8) & 0xff); - *(sp + 1) = (png_byte)(v & 0xff); - sp += 4; - } - } - break; - } - case PNG_COLOR_TYPE_GRAY: - { - if (row_info->bit_depth == 2) - { - sp = row; - for (i = 0; i < row_width; i += 4) - { - int a = *sp & 0xc0; - int b = *sp & 0x30; - int c = *sp & 0x0c; - int d = *sp & 0x03; - - *sp = (png_byte)( - ((((int)gamma_table[a|(a>>2)|(a>>4)|(a>>6)]) ) & 0xc0)| - ((((int)gamma_table[(b<<2)|b|(b>>2)|(b>>4)])>>2) & 0x30)| - ((((int)gamma_table[(c<<4)|(c<<2)|c|(c>>2)])>>4) & 0x0c)| - ((((int)gamma_table[(d<<6)|(d<<4)|(d<<2)|d])>>6) )); - sp++; - } - } - if (row_info->bit_depth == 4) - { - sp = row; - for (i = 0; i < row_width; i += 2) - { - int msb = *sp & 0xf0; - int lsb = *sp & 0x0f; - - *sp = (png_byte)((((int)gamma_table[msb | (msb >> 4)]) & 0xf0) - | (((int)gamma_table[(lsb << 4) | lsb]) >> 4)); - sp++; - } - } - else if (row_info->bit_depth == 8) - { - sp = row; - for (i = 0; i < row_width; i++) - { - *sp = gamma_table[*sp]; - sp++; - } - } - else if (row_info->bit_depth == 16) - { - sp = row; - for (i = 0; i < row_width; i++) - { - png_uint_16 v = gamma_16_table[*(sp + 1) >> gamma_shift][*sp]; - *sp = (png_byte)((v >> 8) & 0xff); - *(sp + 1) = (png_byte)(v & 0xff); - sp += 2; - } - } - break; - } - } - } -} -#endif - -#if defined(PNG_READ_EXPAND_SUPPORTED) -/* Expands a palette row to an RGB or RGBA row depending - * upon whether you supply trans and num_trans. - */ -void /* PRIVATE */ -png_do_expand_palette(png_row_infop row_info, png_bytep row, - png_colorp palette, png_bytep trans, int num_trans) -{ - int shift, value; - png_bytep sp, dp; - png_uint_32 i; - png_uint_32 row_width=row_info->width; - - png_debug(1, "in png_do_expand_palette\n"); - if ( -#if defined(PNG_USELESS_TESTS_SUPPORTED) - row != NULL && row_info != NULL && -#endif - row_info->color_type == PNG_COLOR_TYPE_PALETTE) - { - if (row_info->bit_depth < 8) - { - switch (row_info->bit_depth) - { - case 1: - { - sp = row + (png_size_t)((row_width - 1) >> 3); - dp = row + (png_size_t)row_width - 1; - shift = 7 - (int)((row_width + 7) & 0x07); - for (i = 0; i < row_width; i++) - { - if ((*sp >> shift) & 0x01) - *dp = 1; - else - *dp = 0; - if (shift == 7) - { - shift = 0; - sp--; - } - else - shift++; - - dp--; - } - break; - } - case 2: - { - sp = row + (png_size_t)((row_width - 1) >> 2); - dp = row + (png_size_t)row_width - 1; - shift = (int)((3 - ((row_width + 3) & 0x03)) << 1); - for (i = 0; i < row_width; i++) - { - value = (*sp >> shift) & 0x03; - *dp = (png_byte)value; - if (shift == 6) - { - shift = 0; - sp--; - } - else - shift += 2; - - dp--; - } - break; - } - case 4: - { - sp = row + (png_size_t)((row_width - 1) >> 1); - dp = row + (png_size_t)row_width - 1; - shift = (int)((row_width & 0x01) << 2); - for (i = 0; i < row_width; i++) - { - value = (*sp >> shift) & 0x0f; - *dp = (png_byte)value; - if (shift == 4) - { - shift = 0; - sp--; - } - else - shift += 4; - - dp--; - } - break; - } - } - row_info->bit_depth = 8; - row_info->pixel_depth = 8; - row_info->rowbytes = row_width; - } - switch (row_info->bit_depth) - { - case 8: - { - if (trans != NULL) - { - sp = row + (png_size_t)row_width - 1; - dp = row + (png_size_t)(row_width << 2) - 1; - - for (i = 0; i < row_width; i++) - { - if ((int)(*sp) >= num_trans) - *dp-- = 0xff; - else - *dp-- = trans[*sp]; - *dp-- = palette[*sp].blue; - *dp-- = palette[*sp].green; - *dp-- = palette[*sp].red; - sp--; - } - row_info->bit_depth = 8; - row_info->pixel_depth = 32; - row_info->rowbytes = row_width * 4; - row_info->color_type = 6; - row_info->channels = 4; - } - else - { - sp = row + (png_size_t)row_width - 1; - dp = row + (png_size_t)(row_width * 3) - 1; - - for (i = 0; i < row_width; i++) - { - *dp-- = palette[*sp].blue; - *dp-- = palette[*sp].green; - *dp-- = palette[*sp].red; - sp--; - } - row_info->bit_depth = 8; - row_info->pixel_depth = 24; - row_info->rowbytes = row_width * 3; - row_info->color_type = 2; - row_info->channels = 3; - } - break; - } - } - } -} - -/* If the bit depth < 8, it is expanded to 8. Also, if the already - * expanded transparency value is supplied, an alpha channel is built. - */ -void /* PRIVATE */ -png_do_expand(png_row_infop row_info, png_bytep row, - png_color_16p trans_value) -{ - int shift, value; - png_bytep sp, dp; - png_uint_32 i; - png_uint_32 row_width=row_info->width; - - png_debug(1, "in png_do_expand\n"); -#if defined(PNG_USELESS_TESTS_SUPPORTED) - if (row != NULL && row_info != NULL) -#endif - { - if (row_info->color_type == PNG_COLOR_TYPE_GRAY) - { - png_uint_16 gray = (png_uint_16)(trans_value ? trans_value->gray : 0); - - if (row_info->bit_depth < 8) - { - switch (row_info->bit_depth) - { - case 1: - { - gray = (png_uint_16)((gray&0x01)*0xff); - sp = row + (png_size_t)((row_width - 1) >> 3); - dp = row + (png_size_t)row_width - 1; - shift = 7 - (int)((row_width + 7) & 0x07); - for (i = 0; i < row_width; i++) - { - if ((*sp >> shift) & 0x01) - *dp = 0xff; - else - *dp = 0; - if (shift == 7) - { - shift = 0; - sp--; - } - else - shift++; - - dp--; - } - break; - } - case 2: - { - gray = (png_uint_16)((gray&0x03)*0x55); - sp = row + (png_size_t)((row_width - 1) >> 2); - dp = row + (png_size_t)row_width - 1; - shift = (int)((3 - ((row_width + 3) & 0x03)) << 1); - for (i = 0; i < row_width; i++) - { - value = (*sp >> shift) & 0x03; - *dp = (png_byte)(value | (value << 2) | (value << 4) | - (value << 6)); - if (shift == 6) - { - shift = 0; - sp--; - } - else - shift += 2; - - dp--; - } - break; - } - case 4: - { - gray = (png_uint_16)((gray&0x0f)*0x11); - sp = row + (png_size_t)((row_width - 1) >> 1); - dp = row + (png_size_t)row_width - 1; - shift = (int)((1 - ((row_width + 1) & 0x01)) << 2); - for (i = 0; i < row_width; i++) - { - value = (*sp >> shift) & 0x0f; - *dp = (png_byte)(value | (value << 4)); - if (shift == 4) - { - shift = 0; - sp--; - } - else - shift = 4; - - dp--; - } - break; - } - } - row_info->bit_depth = 8; - row_info->pixel_depth = 8; - row_info->rowbytes = row_width; - } - - if (trans_value != NULL) - { - if (row_info->bit_depth == 8) - { - gray = gray & 0xff; - sp = row + (png_size_t)row_width - 1; - dp = row + (png_size_t)(row_width << 1) - 1; - for (i = 0; i < row_width; i++) - { - if (*sp == gray) - *dp-- = 0; - else - *dp-- = 0xff; - *dp-- = *sp--; - } - } - else if (row_info->bit_depth == 16) - { - png_byte gray_high = (gray >> 8) & 0xff; - png_byte gray_low = gray & 0xff; - sp = row + row_info->rowbytes - 1; - dp = row + (row_info->rowbytes << 1) - 1; - for (i = 0; i < row_width; i++) - { - if (*(sp-1) == gray_high && *(sp) == gray_low) - { - *dp-- = 0; - *dp-- = 0; - } - else - { - *dp-- = 0xff; - *dp-- = 0xff; - } - *dp-- = *sp--; - *dp-- = *sp--; - } - } - row_info->color_type = PNG_COLOR_TYPE_GRAY_ALPHA; - row_info->channels = 2; - row_info->pixel_depth = (png_byte)(row_info->bit_depth << 1); - row_info->rowbytes = PNG_ROWBYTES(row_info->pixel_depth, - row_width); - } - } - else if (row_info->color_type == PNG_COLOR_TYPE_RGB && trans_value) - { - if (row_info->bit_depth == 8) - { - png_byte red = trans_value->red & 0xff; - png_byte green = trans_value->green & 0xff; - png_byte blue = trans_value->blue & 0xff; - sp = row + (png_size_t)row_info->rowbytes - 1; - dp = row + (png_size_t)(row_width << 2) - 1; - for (i = 0; i < row_width; i++) - { - if (*(sp - 2) == red && *(sp - 1) == green && *(sp) == blue) - *dp-- = 0; - else - *dp-- = 0xff; - *dp-- = *sp--; - *dp-- = *sp--; - *dp-- = *sp--; - } - } - else if (row_info->bit_depth == 16) - { - png_byte red_high = (trans_value->red >> 8) & 0xff; - png_byte green_high = (trans_value->green >> 8) & 0xff; - png_byte blue_high = (trans_value->blue >> 8) & 0xff; - png_byte red_low = trans_value->red & 0xff; - png_byte green_low = trans_value->green & 0xff; - png_byte blue_low = trans_value->blue & 0xff; - sp = row + row_info->rowbytes - 1; - dp = row + (png_size_t)(row_width << 3) - 1; - for (i = 0; i < row_width; i++) - { - if (*(sp - 5) == red_high && - *(sp - 4) == red_low && - *(sp - 3) == green_high && - *(sp - 2) == green_low && - *(sp - 1) == blue_high && - *(sp ) == blue_low) - { - *dp-- = 0; - *dp-- = 0; - } - else - { - *dp-- = 0xff; - *dp-- = 0xff; - } - *dp-- = *sp--; - *dp-- = *sp--; - *dp-- = *sp--; - *dp-- = *sp--; - *dp-- = *sp--; - *dp-- = *sp--; - } - } - row_info->color_type = PNG_COLOR_TYPE_RGB_ALPHA; - row_info->channels = 4; - row_info->pixel_depth = (png_byte)(row_info->bit_depth << 2); - row_info->rowbytes = PNG_ROWBYTES(row_info->pixel_depth,row_width); - } - } -} -#endif - -#if defined(PNG_READ_DITHER_SUPPORTED) -void /* PRIVATE */ -png_do_dither(png_row_infop row_info, png_bytep row, - png_bytep palette_lookup, png_bytep dither_lookup) -{ - png_bytep sp, dp; - png_uint_32 i; - png_uint_32 row_width=row_info->width; - - png_debug(1, "in png_do_dither\n"); -#if defined(PNG_USELESS_TESTS_SUPPORTED) - if (row != NULL && row_info != NULL) -#endif - { - if (row_info->color_type == PNG_COLOR_TYPE_RGB && - palette_lookup && row_info->bit_depth == 8) - { - int r, g, b, p; - sp = row; - dp = row; - for (i = 0; i < row_width; i++) - { - r = *sp++; - g = *sp++; - b = *sp++; - - /* this looks real messy, but the compiler will reduce - it down to a reasonable formula. For example, with - 5 bits per color, we get: - p = (((r >> 3) & 0x1f) << 10) | - (((g >> 3) & 0x1f) << 5) | - ((b >> 3) & 0x1f); - */ - p = (((r >> (8 - PNG_DITHER_RED_BITS)) & - ((1 << PNG_DITHER_RED_BITS) - 1)) << - (PNG_DITHER_GREEN_BITS + PNG_DITHER_BLUE_BITS)) | - (((g >> (8 - PNG_DITHER_GREEN_BITS)) & - ((1 << PNG_DITHER_GREEN_BITS) - 1)) << - (PNG_DITHER_BLUE_BITS)) | - ((b >> (8 - PNG_DITHER_BLUE_BITS)) & - ((1 << PNG_DITHER_BLUE_BITS) - 1)); - - *dp++ = palette_lookup[p]; - } - row_info->color_type = PNG_COLOR_TYPE_PALETTE; - row_info->channels = 1; - row_info->pixel_depth = row_info->bit_depth; - row_info->rowbytes = PNG_ROWBYTES(row_info->pixel_depth,row_width); - } - else if (row_info->color_type == PNG_COLOR_TYPE_RGB_ALPHA && - palette_lookup != NULL && row_info->bit_depth == 8) - { - int r, g, b, p; - sp = row; - dp = row; - for (i = 0; i < row_width; i++) - { - r = *sp++; - g = *sp++; - b = *sp++; - sp++; - - p = (((r >> (8 - PNG_DITHER_RED_BITS)) & - ((1 << PNG_DITHER_RED_BITS) - 1)) << - (PNG_DITHER_GREEN_BITS + PNG_DITHER_BLUE_BITS)) | - (((g >> (8 - PNG_DITHER_GREEN_BITS)) & - ((1 << PNG_DITHER_GREEN_BITS) - 1)) << - (PNG_DITHER_BLUE_BITS)) | - ((b >> (8 - PNG_DITHER_BLUE_BITS)) & - ((1 << PNG_DITHER_BLUE_BITS) - 1)); - - *dp++ = palette_lookup[p]; - } - row_info->color_type = PNG_COLOR_TYPE_PALETTE; - row_info->channels = 1; - row_info->pixel_depth = row_info->bit_depth; - row_info->rowbytes = PNG_ROWBYTES(row_info->pixel_depth,row_width); - } - else if (row_info->color_type == PNG_COLOR_TYPE_PALETTE && - dither_lookup && row_info->bit_depth == 8) - { - sp = row; - for (i = 0; i < row_width; i++, sp++) - { - *sp = dither_lookup[*sp]; - } - } - } -} -#endif - -#ifdef PNG_FLOATING_POINT_SUPPORTED -#if defined(PNG_READ_GAMMA_SUPPORTED) -static PNG_CONST int png_gamma_shift[] = - {0x10, 0x21, 0x42, 0x84, 0x110, 0x248, 0x550, 0xff0, 0x00}; - -/* We build the 8- or 16-bit gamma tables here. Note that for 16-bit - * tables, we don't make a full table if we are reducing to 8-bit in - * the future. Note also how the gamma_16 tables are segmented so that - * we don't need to allocate > 64K chunks for a full 16-bit table. - */ -void /* PRIVATE */ -png_build_gamma_table(png_structp png_ptr) -{ - png_debug(1, "in png_build_gamma_table\n"); - - if (png_ptr->bit_depth <= 8) - { - int i; - double g; - - if (png_ptr->screen_gamma > .000001) - g = 1.0 / (png_ptr->gamma * png_ptr->screen_gamma); - else - g = 1.0; - - png_ptr->gamma_table = (png_bytep)png_malloc(png_ptr, - (png_uint_32)256); - - for (i = 0; i < 256; i++) - { - png_ptr->gamma_table[i] = (png_byte)(pow((double)i / 255.0, - g) * 255.0 + .5); - } - -#if defined(PNG_READ_BACKGROUND_SUPPORTED) || \ - defined(PNG_READ_RGB_TO_GRAY_SUPPORTED) - if (png_ptr->transformations & ((PNG_BACKGROUND) | PNG_RGB_TO_GRAY)) - { - - g = 1.0 / (png_ptr->gamma); - - png_ptr->gamma_to_1 = (png_bytep)png_malloc(png_ptr, - (png_uint_32)256); - - for (i = 0; i < 256; i++) - { - png_ptr->gamma_to_1[i] = (png_byte)(pow((double)i / 255.0, - g) * 255.0 + .5); - } - - - png_ptr->gamma_from_1 = (png_bytep)png_malloc(png_ptr, - (png_uint_32)256); - - if(png_ptr->screen_gamma > 0.000001) - g = 1.0 / png_ptr->screen_gamma; - else - g = png_ptr->gamma; /* probably doing rgb_to_gray */ - - for (i = 0; i < 256; i++) - { - png_ptr->gamma_from_1[i] = (png_byte)(pow((double)i / 255.0, - g) * 255.0 + .5); - - } - } -#endif /* PNG_READ_BACKGROUND_SUPPORTED || PNG_RGB_TO_GRAY_SUPPORTED */ - } - else - { - double g; - int i, j, shift, num; - int sig_bit; - png_uint_32 ig; - - if (png_ptr->color_type & PNG_COLOR_MASK_COLOR) - { - sig_bit = (int)png_ptr->sig_bit.red; - if ((int)png_ptr->sig_bit.green > sig_bit) - sig_bit = png_ptr->sig_bit.green; - if ((int)png_ptr->sig_bit.blue > sig_bit) - sig_bit = png_ptr->sig_bit.blue; - } - else - { - sig_bit = (int)png_ptr->sig_bit.gray; - } - - if (sig_bit > 0) - shift = 16 - sig_bit; - else - shift = 0; - - if (png_ptr->transformations & PNG_16_TO_8) - { - if (shift < (16 - PNG_MAX_GAMMA_8)) - shift = (16 - PNG_MAX_GAMMA_8); - } - - if (shift > 8) - shift = 8; - if (shift < 0) - shift = 0; - - png_ptr->gamma_shift = (png_byte)shift; - - num = (1 << (8 - shift)); - - if (png_ptr->screen_gamma > .000001) - g = 1.0 / (png_ptr->gamma * png_ptr->screen_gamma); - else - g = 1.0; - - png_ptr->gamma_16_table = (png_uint_16pp)png_malloc(png_ptr, - (png_uint_32)(num * png_sizeof (png_uint_16p))); - - if (png_ptr->transformations & (PNG_16_TO_8 | PNG_BACKGROUND)) - { - double fin, fout; - png_uint_32 last, max; - - for (i = 0; i < num; i++) - { - png_ptr->gamma_16_table[i] = (png_uint_16p)png_malloc(png_ptr, - (png_uint_32)(256 * png_sizeof (png_uint_16))); - } - - g = 1.0 / g; - last = 0; - for (i = 0; i < 256; i++) - { - fout = ((double)i + 0.5) / 256.0; - fin = pow(fout, g); - max = (png_uint_32)(fin * (double)((png_uint_32)num << 8)); - while (last <= max) - { - png_ptr->gamma_16_table[(int)(last & (0xff >> shift))] - [(int)(last >> (8 - shift))] = (png_uint_16)( - (png_uint_16)i | ((png_uint_16)i << 8)); - last++; - } - } - while (last < ((png_uint_32)num << 8)) - { - png_ptr->gamma_16_table[(int)(last & (0xff >> shift))] - [(int)(last >> (8 - shift))] = (png_uint_16)65535L; - last++; - } - } - else - { - for (i = 0; i < num; i++) - { - png_ptr->gamma_16_table[i] = (png_uint_16p)png_malloc(png_ptr, - (png_uint_32)(256 * png_sizeof (png_uint_16))); - - ig = (((png_uint_32)i * (png_uint_32)png_gamma_shift[shift]) >> 4); - for (j = 0; j < 256; j++) - { - png_ptr->gamma_16_table[i][j] = - (png_uint_16)(pow((double)(ig + ((png_uint_32)j << 8)) / - 65535.0, g) * 65535.0 + .5); - } - } - } - -#if defined(PNG_READ_BACKGROUND_SUPPORTED) || \ - defined(PNG_READ_RGB_TO_GRAY_SUPPORTED) - if (png_ptr->transformations & (PNG_BACKGROUND | PNG_RGB_TO_GRAY)) - { - - g = 1.0 / (png_ptr->gamma); - - png_ptr->gamma_16_to_1 = (png_uint_16pp)png_malloc(png_ptr, - (png_uint_32)(num * png_sizeof (png_uint_16p ))); - - for (i = 0; i < num; i++) - { - png_ptr->gamma_16_to_1[i] = (png_uint_16p)png_malloc(png_ptr, - (png_uint_32)(256 * png_sizeof (png_uint_16))); - - ig = (((png_uint_32)i * - (png_uint_32)png_gamma_shift[shift]) >> 4); - for (j = 0; j < 256; j++) - { - png_ptr->gamma_16_to_1[i][j] = - (png_uint_16)(pow((double)(ig + ((png_uint_32)j << 8)) / - 65535.0, g) * 65535.0 + .5); - } - } - - if(png_ptr->screen_gamma > 0.000001) - g = 1.0 / png_ptr->screen_gamma; - else - g = png_ptr->gamma; /* probably doing rgb_to_gray */ - - png_ptr->gamma_16_from_1 = (png_uint_16pp)png_malloc(png_ptr, - (png_uint_32)(num * png_sizeof (png_uint_16p))); - - for (i = 0; i < num; i++) - { - png_ptr->gamma_16_from_1[i] = (png_uint_16p)png_malloc(png_ptr, - (png_uint_32)(256 * png_sizeof (png_uint_16))); - - ig = (((png_uint_32)i * - (png_uint_32)png_gamma_shift[shift]) >> 4); - for (j = 0; j < 256; j++) - { - png_ptr->gamma_16_from_1[i][j] = - (png_uint_16)(pow((double)(ig + ((png_uint_32)j << 8)) / - 65535.0, g) * 65535.0 + .5); - } - } - } -#endif /* PNG_READ_BACKGROUND_SUPPORTED || PNG_RGB_TO_GRAY_SUPPORTED */ - } -} -#endif -/* To do: install integer version of png_build_gamma_table here */ -#endif - -#if defined(PNG_MNG_FEATURES_SUPPORTED) -/* undoes intrapixel differencing */ -void /* PRIVATE */ -png_do_read_intrapixel(png_row_infop row_info, png_bytep row) -{ - png_debug(1, "in png_do_read_intrapixel\n"); - if ( -#if defined(PNG_USELESS_TESTS_SUPPORTED) - row != NULL && row_info != NULL && -#endif - (row_info->color_type & PNG_COLOR_MASK_COLOR)) - { - int bytes_per_pixel; - png_uint_32 row_width = row_info->width; - if (row_info->bit_depth == 8) - { - png_bytep rp; - png_uint_32 i; - - if (row_info->color_type == PNG_COLOR_TYPE_RGB) - bytes_per_pixel = 3; - else if (row_info->color_type == PNG_COLOR_TYPE_RGB_ALPHA) - bytes_per_pixel = 4; - else - return; - - for (i = 0, rp = row; i < row_width; i++, rp += bytes_per_pixel) - { - *(rp) = (png_byte)((256 + *rp + *(rp+1))&0xff); - *(rp+2) = (png_byte)((256 + *(rp+2) + *(rp+1))&0xff); - } - } - else if (row_info->bit_depth == 16) - { - png_bytep rp; - png_uint_32 i; - - if (row_info->color_type == PNG_COLOR_TYPE_RGB) - bytes_per_pixel = 6; - else if (row_info->color_type == PNG_COLOR_TYPE_RGB_ALPHA) - bytes_per_pixel = 8; - else - return; - - for (i = 0, rp = row; i < row_width; i++, rp += bytes_per_pixel) - { - png_uint_32 s0 = (*(rp ) << 8) | *(rp+1); - png_uint_32 s1 = (*(rp+2) << 8) | *(rp+3); - png_uint_32 s2 = (*(rp+4) << 8) | *(rp+5); - png_uint_32 red = (png_uint_32)((s0+s1+65536L) & 0xffffL); - png_uint_32 blue = (png_uint_32)((s2+s1+65536L) & 0xffffL); - *(rp ) = (png_byte)((red >> 8) & 0xff); - *(rp+1) = (png_byte)(red & 0xff); - *(rp+4) = (png_byte)((blue >> 8) & 0xff); - *(rp+5) = (png_byte)(blue & 0xff); - } - } - } -} -#endif /* PNG_MNG_FEATURES_SUPPORTED */ -#endif /* PNG_READ_SUPPORTED */ diff --git a/src/3rdParty/CxImage/png/pngrutil.c b/src/3rdParty/CxImage/png/pngrutil.c deleted file mode 100644 index 5e40aca481..0000000000 --- a/src/3rdParty/CxImage/png/pngrutil.c +++ /dev/null @@ -1,3164 +0,0 @@ - -/* pngrutil.c - utilities to read a PNG file - * - * Last changed in libpng 1.2.23 [November 6, 2007] - * For conditions of distribution and use, see copyright notice in png.h - * Copyright (c) 1998-2007 Glenn Randers-Pehrson - * (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger) - * (Version 0.88 Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.) - * - * This file contains routines that are only called from within - * libpng itself during the course of reading an image. - */ - -#define PNG_INTERNAL -#include "png.h" - -#if defined(PNG_READ_SUPPORTED) - -#if defined(_WIN32_WCE) && (_WIN32_WCE<0x500) -# define WIN32_WCE_OLD -#endif - -#ifdef PNG_FLOATING_POINT_SUPPORTED -# if defined(WIN32_WCE_OLD) -/* strtod() function is not supported on WindowsCE */ -__inline double png_strtod(png_structp png_ptr, PNG_CONST char *nptr, char **endptr) -{ - double result = 0; - int len; - wchar_t *str, *end; - - len = MultiByteToWideChar(CP_ACP, 0, nptr, -1, NULL, 0); - str = (wchar_t *)png_malloc(png_ptr, len * sizeof(wchar_t)); - if ( NULL != str ) - { - MultiByteToWideChar(CP_ACP, 0, nptr, -1, str, len); - result = wcstod(str, &end); - len = WideCharToMultiByte(CP_ACP, 0, end, -1, NULL, 0, NULL, NULL); - *endptr = (char *)nptr + (png_strlen(nptr) - len + 1); - png_free(png_ptr, str); - } - return result; -} -# else -# define png_strtod(p,a,b) strtod(a,b) -# endif -#endif - -png_uint_32 PNGAPI -png_get_uint_31(png_structp png_ptr, png_bytep buf) -{ - png_uint_32 i = png_get_uint_32(buf); - if (i > PNG_UINT_31_MAX) - png_error(png_ptr, "PNG unsigned integer out of range."); - return (i); -} -#ifndef PNG_READ_BIG_ENDIAN_SUPPORTED -/* Grab an unsigned 32-bit integer from a buffer in big-endian format. */ -png_uint_32 PNGAPI -png_get_uint_32(png_bytep buf) -{ - png_uint_32 i = ((png_uint_32)(*buf) << 24) + - ((png_uint_32)(*(buf + 1)) << 16) + - ((png_uint_32)(*(buf + 2)) << 8) + - (png_uint_32)(*(buf + 3)); - - return (i); -} - -/* Grab a signed 32-bit integer from a buffer in big-endian format. The - * data is stored in the PNG file in two's complement format, and it is - * assumed that the machine format for signed integers is the same. */ -png_int_32 PNGAPI -png_get_int_32(png_bytep buf) -{ - png_int_32 i = ((png_int_32)(*buf) << 24) + - ((png_int_32)(*(buf + 1)) << 16) + - ((png_int_32)(*(buf + 2)) << 8) + - (png_int_32)(*(buf + 3)); - - return (i); -} - -/* Grab an unsigned 16-bit integer from a buffer in big-endian format. */ -png_uint_16 PNGAPI -png_get_uint_16(png_bytep buf) -{ - png_uint_16 i = (png_uint_16)(((png_uint_16)(*buf) << 8) + - (png_uint_16)(*(buf + 1))); - - return (i); -} -#endif /* PNG_READ_BIG_ENDIAN_SUPPORTED */ - -/* Read data, and (optionally) run it through the CRC. */ -void /* PRIVATE */ -png_crc_read(png_structp png_ptr, png_bytep buf, png_size_t length) -{ - if(png_ptr == NULL) return; - png_read_data(png_ptr, buf, length); - png_calculate_crc(png_ptr, buf, length); -} - -/* Optionally skip data and then check the CRC. Depending on whether we - are reading a ancillary or critical chunk, and how the program has set - things up, we may calculate the CRC on the data and print a message. - Returns '1' if there was a CRC error, '0' otherwise. */ -int /* PRIVATE */ -png_crc_finish(png_structp png_ptr, png_uint_32 skip) -{ - png_size_t i; - png_size_t istop = png_ptr->zbuf_size; - - for (i = (png_size_t)skip; i > istop; i -= istop) - { - png_crc_read(png_ptr, png_ptr->zbuf, png_ptr->zbuf_size); - } - if (i) - { - png_crc_read(png_ptr, png_ptr->zbuf, i); - } - - if (png_crc_error(png_ptr)) - { - if (((png_ptr->chunk_name[0] & 0x20) && /* Ancillary */ - !(png_ptr->flags & PNG_FLAG_CRC_ANCILLARY_NOWARN)) || - (!(png_ptr->chunk_name[0] & 0x20) && /* Critical */ - (png_ptr->flags & PNG_FLAG_CRC_CRITICAL_USE))) - { - png_chunk_warning(png_ptr, "CRC error"); - } - else - { - png_chunk_error(png_ptr, "CRC error"); - } - return (1); - } - - return (0); -} - -/* Compare the CRC stored in the PNG file with that calculated by libpng from - the data it has read thus far. */ -int /* PRIVATE */ -png_crc_error(png_structp png_ptr) -{ - png_byte crc_bytes[4]; - png_uint_32 crc; - int need_crc = 1; - - if (png_ptr->chunk_name[0] & 0x20) /* ancillary */ - { - if ((png_ptr->flags & PNG_FLAG_CRC_ANCILLARY_MASK) == - (PNG_FLAG_CRC_ANCILLARY_USE | PNG_FLAG_CRC_ANCILLARY_NOWARN)) - need_crc = 0; - } - else /* critical */ - { - if (png_ptr->flags & PNG_FLAG_CRC_CRITICAL_IGNORE) - need_crc = 0; - } - - png_read_data(png_ptr, crc_bytes, 4); - - if (need_crc) - { - crc = png_get_uint_32(crc_bytes); - return ((int)(crc != png_ptr->crc)); - } - else - return (0); -} - -#if defined(PNG_READ_zTXt_SUPPORTED) || defined(PNG_READ_iTXt_SUPPORTED) || \ - defined(PNG_READ_iCCP_SUPPORTED) -/* - * Decompress trailing data in a chunk. The assumption is that chunkdata - * points at an allocated area holding the contents of a chunk with a - * trailing compressed part. What we get back is an allocated area - * holding the original prefix part and an uncompressed version of the - * trailing part (the malloc area passed in is freed). - */ -png_charp /* PRIVATE */ -png_decompress_chunk(png_structp png_ptr, int comp_type, - png_charp chunkdata, png_size_t chunklength, - png_size_t prefix_size, png_size_t *newlength) -{ - static PNG_CONST char msg[] = "Error decoding compressed text"; - png_charp text; - png_size_t text_size; - - if (comp_type == PNG_COMPRESSION_TYPE_BASE) - { - int ret = Z_OK; - png_ptr->zstream.next_in = (png_bytep)(chunkdata + prefix_size); - png_ptr->zstream.avail_in = (uInt)(chunklength - prefix_size); - png_ptr->zstream.next_out = png_ptr->zbuf; - png_ptr->zstream.avail_out = (uInt)png_ptr->zbuf_size; - - text_size = 0; - text = NULL; - - while (png_ptr->zstream.avail_in) - { - ret = inflate(&png_ptr->zstream, Z_PARTIAL_FLUSH); - if (ret != Z_OK && ret != Z_STREAM_END) - { - if (png_ptr->zstream.msg != NULL) - png_warning(png_ptr, png_ptr->zstream.msg); - else - png_warning(png_ptr, msg); - inflateReset(&png_ptr->zstream); - png_ptr->zstream.avail_in = 0; - - if (text == NULL) - { - text_size = prefix_size + png_sizeof(msg) + 1; - text = (png_charp)png_malloc_warn(png_ptr, text_size); - if (text == NULL) - { - png_free(png_ptr,chunkdata); - png_error(png_ptr,"Not enough memory to decompress chunk"); - } - png_memcpy(text, chunkdata, prefix_size); - } - - text[text_size - 1] = 0x00; - - /* Copy what we can of the error message into the text chunk */ - text_size = (png_size_t)(chunklength - (text - chunkdata) - 1); - text_size = png_sizeof(msg) > text_size ? text_size : - png_sizeof(msg); - png_memcpy(text + prefix_size, msg, text_size + 1); - break; - } - if (!png_ptr->zstream.avail_out || ret == Z_STREAM_END) - { - if (text == NULL) - { - text_size = prefix_size + - png_ptr->zbuf_size - png_ptr->zstream.avail_out; - text = (png_charp)png_malloc_warn(png_ptr, text_size + 1); - if (text == NULL) - { - png_free(png_ptr,chunkdata); - png_error(png_ptr,"Not enough memory to decompress chunk."); - } - png_memcpy(text + prefix_size, png_ptr->zbuf, - text_size - prefix_size); - png_memcpy(text, chunkdata, prefix_size); - *(text + text_size) = 0x00; - } - else - { - png_charp tmp; - - tmp = text; - text = (png_charp)png_malloc_warn(png_ptr, - (png_uint_32)(text_size + - png_ptr->zbuf_size - png_ptr->zstream.avail_out + 1)); - if (text == NULL) - { - png_free(png_ptr, tmp); - png_free(png_ptr, chunkdata); - png_error(png_ptr,"Not enough memory to decompress chunk.."); - } - png_memcpy(text, tmp, text_size); - png_free(png_ptr, tmp); - png_memcpy(text + text_size, png_ptr->zbuf, - (png_ptr->zbuf_size - png_ptr->zstream.avail_out)); - text_size += png_ptr->zbuf_size - png_ptr->zstream.avail_out; - *(text + text_size) = 0x00; - } - if (ret == Z_STREAM_END) - break; - else - { - png_ptr->zstream.next_out = png_ptr->zbuf; - png_ptr->zstream.avail_out = (uInt)png_ptr->zbuf_size; - } - } - } - if (ret != Z_STREAM_END) - { -#if !defined(PNG_NO_STDIO) && !defined(_WIN32_WCE) - char umsg[52]; - - if (ret == Z_BUF_ERROR) - png_snprintf(umsg, 52, - "Buffer error in compressed datastream in %s chunk", - png_ptr->chunk_name); - else if (ret == Z_DATA_ERROR) - png_snprintf(umsg, 52, - "Data error in compressed datastream in %s chunk", - png_ptr->chunk_name); - else - png_snprintf(umsg, 52, - "Incomplete compressed datastream in %s chunk", - png_ptr->chunk_name); - png_warning(png_ptr, umsg); -#else - png_warning(png_ptr, - "Incomplete compressed datastream in chunk other than IDAT"); -#endif - text_size=prefix_size; - if (text == NULL) - { - text = (png_charp)png_malloc_warn(png_ptr, text_size+1); - if (text == NULL) - { - png_free(png_ptr, chunkdata); - png_error(png_ptr,"Not enough memory for text."); - } - png_memcpy(text, chunkdata, prefix_size); - } - *(text + text_size) = 0x00; - } - - inflateReset(&png_ptr->zstream); - png_ptr->zstream.avail_in = 0; - - png_free(png_ptr, chunkdata); - chunkdata = text; - *newlength=text_size; - } - else /* if (comp_type != PNG_COMPRESSION_TYPE_BASE) */ - { -#if !defined(PNG_NO_STDIO) && !defined(_WIN32_WCE) - char umsg[50]; - - png_snprintf(umsg, 50, - "Unknown zTXt compression type %d", comp_type); - png_warning(png_ptr, umsg); -#else - png_warning(png_ptr, "Unknown zTXt compression type"); -#endif - - *(chunkdata + prefix_size) = 0x00; - *newlength=prefix_size; - } - - return chunkdata; -} -#endif - -/* read and check the IDHR chunk */ -void /* PRIVATE */ -png_handle_IHDR(png_structp png_ptr, png_infop info_ptr, png_uint_32 length) -{ - png_byte buf[13]; - png_uint_32 width, height; - int bit_depth, color_type, compression_type, filter_type; - int interlace_type; - - png_debug(1, "in png_handle_IHDR\n"); - - if (png_ptr->mode & PNG_HAVE_IHDR) - png_error(png_ptr, "Out of place IHDR"); - - /* check the length */ - if (length != 13) - png_error(png_ptr, "Invalid IHDR chunk"); - - png_ptr->mode |= PNG_HAVE_IHDR; - - png_crc_read(png_ptr, buf, 13); - png_crc_finish(png_ptr, 0); - - width = png_get_uint_31(png_ptr, buf); - height = png_get_uint_31(png_ptr, buf + 4); - bit_depth = buf[8]; - color_type = buf[9]; - compression_type = buf[10]; - filter_type = buf[11]; - interlace_type = buf[12]; - - /* set internal variables */ - png_ptr->width = width; - png_ptr->height = height; - png_ptr->bit_depth = (png_byte)bit_depth; - png_ptr->interlaced = (png_byte)interlace_type; - png_ptr->color_type = (png_byte)color_type; -#if defined(PNG_MNG_FEATURES_SUPPORTED) - png_ptr->filter_type = (png_byte)filter_type; -#endif - png_ptr->compression_type = (png_byte)compression_type; - - /* find number of channels */ - switch (png_ptr->color_type) - { - case PNG_COLOR_TYPE_GRAY: - case PNG_COLOR_TYPE_PALETTE: - png_ptr->channels = 1; - break; - case PNG_COLOR_TYPE_RGB: - png_ptr->channels = 3; - break; - case PNG_COLOR_TYPE_GRAY_ALPHA: - png_ptr->channels = 2; - break; - case PNG_COLOR_TYPE_RGB_ALPHA: - png_ptr->channels = 4; - break; - } - - /* set up other useful info */ - png_ptr->pixel_depth = (png_byte)(png_ptr->bit_depth * - png_ptr->channels); - png_ptr->rowbytes = PNG_ROWBYTES(png_ptr->pixel_depth,png_ptr->width); - png_debug1(3,"bit_depth = %d\n", png_ptr->bit_depth); - png_debug1(3,"channels = %d\n", png_ptr->channels); - png_debug1(3,"rowbytes = %lu\n", png_ptr->rowbytes); - png_set_IHDR(png_ptr, info_ptr, width, height, bit_depth, - color_type, interlace_type, compression_type, filter_type); -} - -/* read and check the palette */ -void /* PRIVATE */ -png_handle_PLTE(png_structp png_ptr, png_infop info_ptr, png_uint_32 length) -{ - png_color palette[PNG_MAX_PALETTE_LENGTH]; - int num, i; -#ifndef PNG_NO_POINTER_INDEXING - png_colorp pal_ptr; -#endif - - png_debug(1, "in png_handle_PLTE\n"); - - if (!(png_ptr->mode & PNG_HAVE_IHDR)) - png_error(png_ptr, "Missing IHDR before PLTE"); - else if (png_ptr->mode & PNG_HAVE_IDAT) - { - png_warning(png_ptr, "Invalid PLTE after IDAT"); - png_crc_finish(png_ptr, length); - return; - } - else if (png_ptr->mode & PNG_HAVE_PLTE) - png_error(png_ptr, "Duplicate PLTE chunk"); - - png_ptr->mode |= PNG_HAVE_PLTE; - - if (!(png_ptr->color_type&PNG_COLOR_MASK_COLOR)) - { - png_warning(png_ptr, - "Ignoring PLTE chunk in grayscale PNG"); - png_crc_finish(png_ptr, length); - return; - } -#if !defined(PNG_READ_OPT_PLTE_SUPPORTED) - if (png_ptr->color_type != PNG_COLOR_TYPE_PALETTE) - { - png_crc_finish(png_ptr, length); - return; - } -#endif - - if (length > 3*PNG_MAX_PALETTE_LENGTH || length % 3) - { - if (png_ptr->color_type != PNG_COLOR_TYPE_PALETTE) - { - png_warning(png_ptr, "Invalid palette chunk"); - png_crc_finish(png_ptr, length); - return; - } - else - { - png_error(png_ptr, "Invalid palette chunk"); - } - } - - num = (int)length / 3; - -#ifndef PNG_NO_POINTER_INDEXING - for (i = 0, pal_ptr = palette; i < num; i++, pal_ptr++) - { - png_byte buf[3]; - - png_crc_read(png_ptr, buf, 3); - pal_ptr->red = buf[0]; - pal_ptr->green = buf[1]; - pal_ptr->blue = buf[2]; - } -#else - for (i = 0; i < num; i++) - { - png_byte buf[3]; - - png_crc_read(png_ptr, buf, 3); - /* don't depend upon png_color being any order */ - palette[i].red = buf[0]; - palette[i].green = buf[1]; - palette[i].blue = buf[2]; - } -#endif - - /* If we actually NEED the PLTE chunk (ie for a paletted image), we do - whatever the normal CRC configuration tells us. However, if we - have an RGB image, the PLTE can be considered ancillary, so - we will act as though it is. */ -#if !defined(PNG_READ_OPT_PLTE_SUPPORTED) - if (png_ptr->color_type == PNG_COLOR_TYPE_PALETTE) -#endif - { - png_crc_finish(png_ptr, 0); - } -#if !defined(PNG_READ_OPT_PLTE_SUPPORTED) - else if (png_crc_error(png_ptr)) /* Only if we have a CRC error */ - { - /* If we don't want to use the data from an ancillary chunk, - we have two options: an error abort, or a warning and we - ignore the data in this chunk (which should be OK, since - it's considered ancillary for a RGB or RGBA image). */ - if (!(png_ptr->flags & PNG_FLAG_CRC_ANCILLARY_USE)) - { - if (png_ptr->flags & PNG_FLAG_CRC_ANCILLARY_NOWARN) - { - png_chunk_error(png_ptr, "CRC error"); - } - else - { - png_chunk_warning(png_ptr, "CRC error"); - return; - } - } - /* Otherwise, we (optionally) emit a warning and use the chunk. */ - else if (!(png_ptr->flags & PNG_FLAG_CRC_ANCILLARY_NOWARN)) - { - png_chunk_warning(png_ptr, "CRC error"); - } - } -#endif - - png_set_PLTE(png_ptr, info_ptr, palette, num); - -#if defined(PNG_READ_tRNS_SUPPORTED) - if (png_ptr->color_type == PNG_COLOR_TYPE_PALETTE) - { - if (info_ptr != NULL && (info_ptr->valid & PNG_INFO_tRNS)) - { - if (png_ptr->num_trans > (png_uint_16)num) - { - png_warning(png_ptr, "Truncating incorrect tRNS chunk length"); - png_ptr->num_trans = (png_uint_16)num; - } - if (info_ptr->num_trans > (png_uint_16)num) - { - png_warning(png_ptr, "Truncating incorrect info tRNS chunk length"); - info_ptr->num_trans = (png_uint_16)num; - } - } - } -#endif - -} - -void /* PRIVATE */ -png_handle_IEND(png_structp png_ptr, png_infop info_ptr, png_uint_32 length) -{ - png_debug(1, "in png_handle_IEND\n"); - - if (!(png_ptr->mode & PNG_HAVE_IHDR) || !(png_ptr->mode & PNG_HAVE_IDAT)) - { - png_error(png_ptr, "No image in file"); - } - - png_ptr->mode |= (PNG_AFTER_IDAT | PNG_HAVE_IEND); - - if (length != 0) - { - png_warning(png_ptr, "Incorrect IEND chunk length"); - } - png_crc_finish(png_ptr, length); - - info_ptr =info_ptr; /* quiet compiler warnings about unused info_ptr */ -} - -#if defined(PNG_READ_gAMA_SUPPORTED) -void /* PRIVATE */ -png_handle_gAMA(png_structp png_ptr, png_infop info_ptr, png_uint_32 length) -{ - png_fixed_point igamma; -#ifdef PNG_FLOATING_POINT_SUPPORTED - float file_gamma; -#endif - png_byte buf[4]; - - png_debug(1, "in png_handle_gAMA\n"); - - if (!(png_ptr->mode & PNG_HAVE_IHDR)) - png_error(png_ptr, "Missing IHDR before gAMA"); - else if (png_ptr->mode & PNG_HAVE_IDAT) - { - png_warning(png_ptr, "Invalid gAMA after IDAT"); - png_crc_finish(png_ptr, length); - return; - } - else if (png_ptr->mode & PNG_HAVE_PLTE) - /* Should be an error, but we can cope with it */ - png_warning(png_ptr, "Out of place gAMA chunk"); - - if (info_ptr != NULL && (info_ptr->valid & PNG_INFO_gAMA) -#if defined(PNG_READ_sRGB_SUPPORTED) - && !(info_ptr->valid & PNG_INFO_sRGB) -#endif - ) - { - png_warning(png_ptr, "Duplicate gAMA chunk"); - png_crc_finish(png_ptr, length); - return; - } - - if (length != 4) - { - png_warning(png_ptr, "Incorrect gAMA chunk length"); - png_crc_finish(png_ptr, length); - return; - } - - png_crc_read(png_ptr, buf, 4); - if (png_crc_finish(png_ptr, 0)) - return; - - igamma = (png_fixed_point)png_get_uint_32(buf); - /* check for zero gamma */ - if (igamma == 0) - { - png_warning(png_ptr, - "Ignoring gAMA chunk with gamma=0"); - return; - } - -#if defined(PNG_READ_sRGB_SUPPORTED) - if (info_ptr != NULL && (info_ptr->valid & PNG_INFO_sRGB)) - if (PNG_OUT_OF_RANGE(igamma, 45500L, 500)) - { - png_warning(png_ptr, - "Ignoring incorrect gAMA value when sRGB is also present"); -#ifndef PNG_NO_CONSOLE_IO - fprintf(stderr, "gamma = (%d/100000)\n", (int)igamma); -#endif - return; - } -#endif /* PNG_READ_sRGB_SUPPORTED */ - -#ifdef PNG_FLOATING_POINT_SUPPORTED - file_gamma = (float)igamma / (float)100000.0; -# ifdef PNG_READ_GAMMA_SUPPORTED - png_ptr->gamma = file_gamma; -# endif - png_set_gAMA(png_ptr, info_ptr, file_gamma); -#endif -#ifdef PNG_FIXED_POINT_SUPPORTED - png_set_gAMA_fixed(png_ptr, info_ptr, igamma); -#endif -} -#endif - -#if defined(PNG_READ_sBIT_SUPPORTED) -void /* PRIVATE */ -png_handle_sBIT(png_structp png_ptr, png_infop info_ptr, png_uint_32 length) -{ - png_size_t truelen; - png_byte buf[4]; - - png_debug(1, "in png_handle_sBIT\n"); - - buf[0] = buf[1] = buf[2] = buf[3] = 0; - - if (!(png_ptr->mode & PNG_HAVE_IHDR)) - png_error(png_ptr, "Missing IHDR before sBIT"); - else if (png_ptr->mode & PNG_HAVE_IDAT) - { - png_warning(png_ptr, "Invalid sBIT after IDAT"); - png_crc_finish(png_ptr, length); - return; - } - else if (png_ptr->mode & PNG_HAVE_PLTE) - { - /* Should be an error, but we can cope with it */ - png_warning(png_ptr, "Out of place sBIT chunk"); - } - if (info_ptr != NULL && (info_ptr->valid & PNG_INFO_sBIT)) - { - png_warning(png_ptr, "Duplicate sBIT chunk"); - png_crc_finish(png_ptr, length); - return; - } - - if (png_ptr->color_type == PNG_COLOR_TYPE_PALETTE) - truelen = 3; - else - truelen = (png_size_t)png_ptr->channels; - - if (length != truelen || length > 4) - { - png_warning(png_ptr, "Incorrect sBIT chunk length"); - png_crc_finish(png_ptr, length); - return; - } - - png_crc_read(png_ptr, buf, truelen); - if (png_crc_finish(png_ptr, 0)) - return; - - if (png_ptr->color_type & PNG_COLOR_MASK_COLOR) - { - png_ptr->sig_bit.red = buf[0]; - png_ptr->sig_bit.green = buf[1]; - png_ptr->sig_bit.blue = buf[2]; - png_ptr->sig_bit.alpha = buf[3]; - } - else - { - png_ptr->sig_bit.gray = buf[0]; - png_ptr->sig_bit.red = buf[0]; - png_ptr->sig_bit.green = buf[0]; - png_ptr->sig_bit.blue = buf[0]; - png_ptr->sig_bit.alpha = buf[1]; - } - png_set_sBIT(png_ptr, info_ptr, &(png_ptr->sig_bit)); -} -#endif - -#if defined(PNG_READ_cHRM_SUPPORTED) -void /* PRIVATE */ -png_handle_cHRM(png_structp png_ptr, png_infop info_ptr, png_uint_32 length) -{ - png_byte buf[4]; -#ifdef PNG_FLOATING_POINT_SUPPORTED - float white_x, white_y, red_x, red_y, green_x, green_y, blue_x, blue_y; -#endif - png_fixed_point int_x_white, int_y_white, int_x_red, int_y_red, int_x_green, - int_y_green, int_x_blue, int_y_blue; - - png_uint_32 uint_x, uint_y; - - png_debug(1, "in png_handle_cHRM\n"); - - if (!(png_ptr->mode & PNG_HAVE_IHDR)) - png_error(png_ptr, "Missing IHDR before cHRM"); - else if (png_ptr->mode & PNG_HAVE_IDAT) - { - png_warning(png_ptr, "Invalid cHRM after IDAT"); - png_crc_finish(png_ptr, length); - return; - } - else if (png_ptr->mode & PNG_HAVE_PLTE) - /* Should be an error, but we can cope with it */ - png_warning(png_ptr, "Missing PLTE before cHRM"); - - if (info_ptr != NULL && (info_ptr->valid & PNG_INFO_cHRM) -#if defined(PNG_READ_sRGB_SUPPORTED) - && !(info_ptr->valid & PNG_INFO_sRGB) -#endif - ) - { - png_warning(png_ptr, "Duplicate cHRM chunk"); - png_crc_finish(png_ptr, length); - return; - } - - if (length != 32) - { - png_warning(png_ptr, "Incorrect cHRM chunk length"); - png_crc_finish(png_ptr, length); - return; - } - - png_crc_read(png_ptr, buf, 4); - uint_x = png_get_uint_32(buf); - - png_crc_read(png_ptr, buf, 4); - uint_y = png_get_uint_32(buf); - - if (uint_x > 80000L || uint_y > 80000L || - uint_x + uint_y > 100000L) - { - png_warning(png_ptr, "Invalid cHRM white point"); - png_crc_finish(png_ptr, 24); - return; - } - int_x_white = (png_fixed_point)uint_x; - int_y_white = (png_fixed_point)uint_y; - - png_crc_read(png_ptr, buf, 4); - uint_x = png_get_uint_32(buf); - - png_crc_read(png_ptr, buf, 4); - uint_y = png_get_uint_32(buf); - - if (uint_x + uint_y > 100000L) - { - png_warning(png_ptr, "Invalid cHRM red point"); - png_crc_finish(png_ptr, 16); - return; - } - int_x_red = (png_fixed_point)uint_x; - int_y_red = (png_fixed_point)uint_y; - - png_crc_read(png_ptr, buf, 4); - uint_x = png_get_uint_32(buf); - - png_crc_read(png_ptr, buf, 4); - uint_y = png_get_uint_32(buf); - - if (uint_x + uint_y > 100000L) - { - png_warning(png_ptr, "Invalid cHRM green point"); - png_crc_finish(png_ptr, 8); - return; - } - int_x_green = (png_fixed_point)uint_x; - int_y_green = (png_fixed_point)uint_y; - - png_crc_read(png_ptr, buf, 4); - uint_x = png_get_uint_32(buf); - - png_crc_read(png_ptr, buf, 4); - uint_y = png_get_uint_32(buf); - - if (uint_x + uint_y > 100000L) - { - png_warning(png_ptr, "Invalid cHRM blue point"); - png_crc_finish(png_ptr, 0); - return; - } - int_x_blue = (png_fixed_point)uint_x; - int_y_blue = (png_fixed_point)uint_y; - -#ifdef PNG_FLOATING_POINT_SUPPORTED - white_x = (float)int_x_white / (float)100000.0; - white_y = (float)int_y_white / (float)100000.0; - red_x = (float)int_x_red / (float)100000.0; - red_y = (float)int_y_red / (float)100000.0; - green_x = (float)int_x_green / (float)100000.0; - green_y = (float)int_y_green / (float)100000.0; - blue_x = (float)int_x_blue / (float)100000.0; - blue_y = (float)int_y_blue / (float)100000.0; -#endif - -#if defined(PNG_READ_sRGB_SUPPORTED) - if ((info_ptr != NULL) && (info_ptr->valid & PNG_INFO_sRGB)) - { - if (PNG_OUT_OF_RANGE(int_x_white, 31270, 1000) || - PNG_OUT_OF_RANGE(int_y_white, 32900, 1000) || - PNG_OUT_OF_RANGE(int_x_red, 64000L, 1000) || - PNG_OUT_OF_RANGE(int_y_red, 33000, 1000) || - PNG_OUT_OF_RANGE(int_x_green, 30000, 1000) || - PNG_OUT_OF_RANGE(int_y_green, 60000L, 1000) || - PNG_OUT_OF_RANGE(int_x_blue, 15000, 1000) || - PNG_OUT_OF_RANGE(int_y_blue, 6000, 1000)) - { - png_warning(png_ptr, - "Ignoring incorrect cHRM value when sRGB is also present"); -#ifndef PNG_NO_CONSOLE_IO -#ifdef PNG_FLOATING_POINT_SUPPORTED - fprintf(stderr,"wx=%f, wy=%f, rx=%f, ry=%f\n", - white_x, white_y, red_x, red_y); - fprintf(stderr,"gx=%f, gy=%f, bx=%f, by=%f\n", - green_x, green_y, blue_x, blue_y); -#else - fprintf(stderr,"wx=%ld, wy=%ld, rx=%ld, ry=%ld\n", - int_x_white, int_y_white, int_x_red, int_y_red); - fprintf(stderr,"gx=%ld, gy=%ld, bx=%ld, by=%ld\n", - int_x_green, int_y_green, int_x_blue, int_y_blue); -#endif -#endif /* PNG_NO_CONSOLE_IO */ - } - png_crc_finish(png_ptr, 0); - return; - } -#endif /* PNG_READ_sRGB_SUPPORTED */ - -#ifdef PNG_FLOATING_POINT_SUPPORTED - png_set_cHRM(png_ptr, info_ptr, - white_x, white_y, red_x, red_y, green_x, green_y, blue_x, blue_y); -#endif -#ifdef PNG_FIXED_POINT_SUPPORTED - png_set_cHRM_fixed(png_ptr, info_ptr, - int_x_white, int_y_white, int_x_red, int_y_red, int_x_green, - int_y_green, int_x_blue, int_y_blue); -#endif - if (png_crc_finish(png_ptr, 0)) - return; -} -#endif - -#if defined(PNG_READ_sRGB_SUPPORTED) -void /* PRIVATE */ -png_handle_sRGB(png_structp png_ptr, png_infop info_ptr, png_uint_32 length) -{ - int intent; - png_byte buf[1]; - - png_debug(1, "in png_handle_sRGB\n"); - - if (!(png_ptr->mode & PNG_HAVE_IHDR)) - png_error(png_ptr, "Missing IHDR before sRGB"); - else if (png_ptr->mode & PNG_HAVE_IDAT) - { - png_warning(png_ptr, "Invalid sRGB after IDAT"); - png_crc_finish(png_ptr, length); - return; - } - else if (png_ptr->mode & PNG_HAVE_PLTE) - /* Should be an error, but we can cope with it */ - png_warning(png_ptr, "Out of place sRGB chunk"); - - if (info_ptr != NULL && (info_ptr->valid & PNG_INFO_sRGB)) - { - png_warning(png_ptr, "Duplicate sRGB chunk"); - png_crc_finish(png_ptr, length); - return; - } - - if (length != 1) - { - png_warning(png_ptr, "Incorrect sRGB chunk length"); - png_crc_finish(png_ptr, length); - return; - } - - png_crc_read(png_ptr, buf, 1); - if (png_crc_finish(png_ptr, 0)) - return; - - intent = buf[0]; - /* check for bad intent */ - if (intent >= PNG_sRGB_INTENT_LAST) - { - png_warning(png_ptr, "Unknown sRGB intent"); - return; - } - -#if defined(PNG_READ_gAMA_SUPPORTED) && defined(PNG_READ_GAMMA_SUPPORTED) - if (info_ptr != NULL && (info_ptr->valid & PNG_INFO_gAMA)) - { - png_fixed_point igamma; -#ifdef PNG_FIXED_POINT_SUPPORTED - igamma=info_ptr->int_gamma; -#else -# ifdef PNG_FLOATING_POINT_SUPPORTED - igamma=(png_fixed_point)(info_ptr->gamma * 100000.); -# endif -#endif - if (PNG_OUT_OF_RANGE(igamma, 45500L, 500)) - { - png_warning(png_ptr, - "Ignoring incorrect gAMA value when sRGB is also present"); -#ifndef PNG_NO_CONSOLE_IO -# ifdef PNG_FIXED_POINT_SUPPORTED - fprintf(stderr,"incorrect gamma=(%d/100000)\n",(int)png_ptr->int_gamma); -# else -# ifdef PNG_FLOATING_POINT_SUPPORTED - fprintf(stderr,"incorrect gamma=%f\n",png_ptr->gamma); -# endif -# endif -#endif - } - } -#endif /* PNG_READ_gAMA_SUPPORTED */ - -#ifdef PNG_READ_cHRM_SUPPORTED -#ifdef PNG_FIXED_POINT_SUPPORTED - if (info_ptr != NULL && (info_ptr->valid & PNG_INFO_cHRM)) - if (PNG_OUT_OF_RANGE(info_ptr->int_x_white, 31270, 1000) || - PNG_OUT_OF_RANGE(info_ptr->int_y_white, 32900, 1000) || - PNG_OUT_OF_RANGE(info_ptr->int_x_red, 64000L, 1000) || - PNG_OUT_OF_RANGE(info_ptr->int_y_red, 33000, 1000) || - PNG_OUT_OF_RANGE(info_ptr->int_x_green, 30000, 1000) || - PNG_OUT_OF_RANGE(info_ptr->int_y_green, 60000L, 1000) || - PNG_OUT_OF_RANGE(info_ptr->int_x_blue, 15000, 1000) || - PNG_OUT_OF_RANGE(info_ptr->int_y_blue, 6000, 1000)) - { - png_warning(png_ptr, - "Ignoring incorrect cHRM value when sRGB is also present"); - } -#endif /* PNG_FIXED_POINT_SUPPORTED */ -#endif /* PNG_READ_cHRM_SUPPORTED */ - - png_set_sRGB_gAMA_and_cHRM(png_ptr, info_ptr, intent); -} -#endif /* PNG_READ_sRGB_SUPPORTED */ - -#if defined(PNG_READ_iCCP_SUPPORTED) -void /* PRIVATE */ -png_handle_iCCP(png_structp png_ptr, png_infop info_ptr, png_uint_32 length) -/* Note: this does not properly handle chunks that are > 64K under DOS */ -{ - png_charp chunkdata; - png_byte compression_type; - png_bytep pC; - png_charp profile; - png_uint_32 skip = 0; - png_uint_32 profile_size, profile_length; - png_size_t slength, prefix_length, data_length; - - png_debug(1, "in png_handle_iCCP\n"); - - if (!(png_ptr->mode & PNG_HAVE_IHDR)) - png_error(png_ptr, "Missing IHDR before iCCP"); - else if (png_ptr->mode & PNG_HAVE_IDAT) - { - png_warning(png_ptr, "Invalid iCCP after IDAT"); - png_crc_finish(png_ptr, length); - return; - } - else if (png_ptr->mode & PNG_HAVE_PLTE) - /* Should be an error, but we can cope with it */ - png_warning(png_ptr, "Out of place iCCP chunk"); - - if (info_ptr != NULL && (info_ptr->valid & PNG_INFO_iCCP)) - { - png_warning(png_ptr, "Duplicate iCCP chunk"); - png_crc_finish(png_ptr, length); - return; - } - -#ifdef PNG_MAX_MALLOC_64K - if (length > (png_uint_32)65535L) - { - png_warning(png_ptr, "iCCP chunk too large to fit in memory"); - skip = length - (png_uint_32)65535L; - length = (png_uint_32)65535L; - } -#endif - - chunkdata = (png_charp)png_malloc(png_ptr, length + 1); - slength = (png_size_t)length; - png_crc_read(png_ptr, (png_bytep)chunkdata, slength); - - if (png_crc_finish(png_ptr, skip)) - { - png_free(png_ptr, chunkdata); - return; - } - - chunkdata[slength] = 0x00; - - for (profile = chunkdata; *profile; profile++) - /* empty loop to find end of name */ ; - - ++profile; - - /* there should be at least one zero (the compression type byte) - following the separator, and we should be on it */ - if ( profile >= chunkdata + slength - 1) - { - png_free(png_ptr, chunkdata); - png_warning(png_ptr, "Malformed iCCP chunk"); - return; - } - - /* compression_type should always be zero */ - compression_type = *profile++; - if (compression_type) - { - png_warning(png_ptr, "Ignoring nonzero compression type in iCCP chunk"); - compression_type=0x00; /* Reset it to zero (libpng-1.0.6 through 1.0.8 - wrote nonzero) */ - } - - prefix_length = profile - chunkdata; - chunkdata = png_decompress_chunk(png_ptr, compression_type, chunkdata, - slength, prefix_length, &data_length); - - profile_length = data_length - prefix_length; - - if ( prefix_length > data_length || profile_length < 4) - { - png_free(png_ptr, chunkdata); - png_warning(png_ptr, "Profile size field missing from iCCP chunk"); - return; - } - - /* Check the profile_size recorded in the first 32 bits of the ICC profile */ - pC = (png_bytep)(chunkdata+prefix_length); - profile_size = ((*(pC ))<<24) | - ((*(pC+1))<<16) | - ((*(pC+2))<< 8) | - ((*(pC+3)) ); - - if(profile_size < profile_length) - profile_length = profile_size; - - if(profile_size > profile_length) - { - png_free(png_ptr, chunkdata); - png_warning(png_ptr, "Ignoring truncated iCCP profile."); - return; - } - - png_set_iCCP(png_ptr, info_ptr, chunkdata, compression_type, - chunkdata + prefix_length, profile_length); - png_free(png_ptr, chunkdata); -} -#endif /* PNG_READ_iCCP_SUPPORTED */ - -#if defined(PNG_READ_sPLT_SUPPORTED) -void /* PRIVATE */ -png_handle_sPLT(png_structp png_ptr, png_infop info_ptr, png_uint_32 length) -/* Note: this does not properly handle chunks that are > 64K under DOS */ -{ - png_bytep chunkdata; - png_bytep entry_start; - png_sPLT_t new_palette; -#ifdef PNG_NO_POINTER_INDEXING - png_sPLT_entryp pp; -#endif - int data_length, entry_size, i; - png_uint_32 skip = 0; - png_size_t slength; - - png_debug(1, "in png_handle_sPLT\n"); - - if (!(png_ptr->mode & PNG_HAVE_IHDR)) - png_error(png_ptr, "Missing IHDR before sPLT"); - else if (png_ptr->mode & PNG_HAVE_IDAT) - { - png_warning(png_ptr, "Invalid sPLT after IDAT"); - png_crc_finish(png_ptr, length); - return; - } - -#ifdef PNG_MAX_MALLOC_64K - if (length > (png_uint_32)65535L) - { - png_warning(png_ptr, "sPLT chunk too large to fit in memory"); - skip = length - (png_uint_32)65535L; - length = (png_uint_32)65535L; - } -#endif - - chunkdata = (png_bytep)png_malloc(png_ptr, length + 1); - slength = (png_size_t)length; - png_crc_read(png_ptr, (png_bytep)chunkdata, slength); - - if (png_crc_finish(png_ptr, skip)) - { - png_free(png_ptr, chunkdata); - return; - } - - chunkdata[slength] = 0x00; - - for (entry_start = chunkdata; *entry_start; entry_start++) - /* empty loop to find end of name */ ; - ++entry_start; - - /* a sample depth should follow the separator, and we should be on it */ - if (entry_start > chunkdata + slength - 2) - { - png_free(png_ptr, chunkdata); - png_warning(png_ptr, "malformed sPLT chunk"); - return; - } - - new_palette.depth = *entry_start++; - entry_size = (new_palette.depth == 8 ? 6 : 10); - data_length = (slength - (entry_start - chunkdata)); - - /* integrity-check the data length */ - if (data_length % entry_size) - { - png_free(png_ptr, chunkdata); - png_warning(png_ptr, "sPLT chunk has bad length"); - return; - } - - new_palette.nentries = (png_int_32) ( data_length / entry_size); - if ((png_uint_32) new_palette.nentries > (png_uint_32) (PNG_SIZE_MAX / - png_sizeof(png_sPLT_entry))) - { - png_warning(png_ptr, "sPLT chunk too long"); - return; - } - new_palette.entries = (png_sPLT_entryp)png_malloc_warn( - png_ptr, new_palette.nentries * png_sizeof(png_sPLT_entry)); - if (new_palette.entries == NULL) - { - png_warning(png_ptr, "sPLT chunk requires too much memory"); - return; - } - -#ifndef PNG_NO_POINTER_INDEXING - for (i = 0; i < new_palette.nentries; i++) - { - png_sPLT_entryp pp = new_palette.entries + i; - - if (new_palette.depth == 8) - { - pp->red = *entry_start++; - pp->green = *entry_start++; - pp->blue = *entry_start++; - pp->alpha = *entry_start++; - } - else - { - pp->red = png_get_uint_16(entry_start); entry_start += 2; - pp->green = png_get_uint_16(entry_start); entry_start += 2; - pp->blue = png_get_uint_16(entry_start); entry_start += 2; - pp->alpha = png_get_uint_16(entry_start); entry_start += 2; - } - pp->frequency = png_get_uint_16(entry_start); entry_start += 2; - } -#else - pp = new_palette.entries; - for (i = 0; i < new_palette.nentries; i++) - { - - if (new_palette.depth == 8) - { - pp[i].red = *entry_start++; - pp[i].green = *entry_start++; - pp[i].blue = *entry_start++; - pp[i].alpha = *entry_start++; - } - else - { - pp[i].red = png_get_uint_16(entry_start); entry_start += 2; - pp[i].green = png_get_uint_16(entry_start); entry_start += 2; - pp[i].blue = png_get_uint_16(entry_start); entry_start += 2; - pp[i].alpha = png_get_uint_16(entry_start); entry_start += 2; - } - pp->frequency = png_get_uint_16(entry_start); entry_start += 2; - } -#endif - - /* discard all chunk data except the name and stash that */ - new_palette.name = (png_charp)chunkdata; - - png_set_sPLT(png_ptr, info_ptr, &new_palette, 1); - - png_free(png_ptr, chunkdata); - png_free(png_ptr, new_palette.entries); -} -#endif /* PNG_READ_sPLT_SUPPORTED */ - -#if defined(PNG_READ_tRNS_SUPPORTED) -void /* PRIVATE */ -png_handle_tRNS(png_structp png_ptr, png_infop info_ptr, png_uint_32 length) -{ - png_byte readbuf[PNG_MAX_PALETTE_LENGTH]; - int bit_mask; - - png_debug(1, "in png_handle_tRNS\n"); - - /* For non-indexed color, mask off any bits in the tRNS value that - * exceed the bit depth. Some creators were writing extra bits there. - * This is not needed for indexed color. */ - bit_mask = (1 << png_ptr->bit_depth) - 1; - - if (!(png_ptr->mode & PNG_HAVE_IHDR)) - png_error(png_ptr, "Missing IHDR before tRNS"); - else if (png_ptr->mode & PNG_HAVE_IDAT) - { - png_warning(png_ptr, "Invalid tRNS after IDAT"); - png_crc_finish(png_ptr, length); - return; - } - else if (info_ptr != NULL && (info_ptr->valid & PNG_INFO_tRNS)) - { - png_warning(png_ptr, "Duplicate tRNS chunk"); - png_crc_finish(png_ptr, length); - return; - } - - if (png_ptr->color_type == PNG_COLOR_TYPE_GRAY) - { - png_byte buf[2]; - - if (length != 2) - { - png_warning(png_ptr, "Incorrect tRNS chunk length"); - png_crc_finish(png_ptr, length); - return; - } - - png_crc_read(png_ptr, buf, 2); - png_ptr->num_trans = 1; - png_ptr->trans_values.gray = png_get_uint_16(buf) & bit_mask; - } - else if (png_ptr->color_type == PNG_COLOR_TYPE_RGB) - { - png_byte buf[6]; - - if (length != 6) - { - png_warning(png_ptr, "Incorrect tRNS chunk length"); - png_crc_finish(png_ptr, length); - return; - } - png_crc_read(png_ptr, buf, (png_size_t)length); - png_ptr->num_trans = 1; - png_ptr->trans_values.red = png_get_uint_16(buf) & bit_mask; - png_ptr->trans_values.green = png_get_uint_16(buf + 2) & bit_mask; - png_ptr->trans_values.blue = png_get_uint_16(buf + 4) & bit_mask; - } - else if (png_ptr->color_type == PNG_COLOR_TYPE_PALETTE) - { - if (!(png_ptr->mode & PNG_HAVE_PLTE)) - { - /* Should be an error, but we can cope with it. */ - png_warning(png_ptr, "Missing PLTE before tRNS"); - } - if (length > (png_uint_32)png_ptr->num_palette || - length > PNG_MAX_PALETTE_LENGTH) - { - png_warning(png_ptr, "Incorrect tRNS chunk length"); - png_crc_finish(png_ptr, length); - return; - } - if (length == 0) - { - png_warning(png_ptr, "Zero length tRNS chunk"); - png_crc_finish(png_ptr, length); - return; - } - png_crc_read(png_ptr, readbuf, (png_size_t)length); - png_ptr->num_trans = (png_uint_16)length; - } - else - { - png_warning(png_ptr, "tRNS chunk not allowed with alpha channel"); - png_crc_finish(png_ptr, length); - return; - } - - if (png_crc_finish(png_ptr, 0)) - { - png_ptr->num_trans = 0; - return; - } - - png_set_tRNS(png_ptr, info_ptr, readbuf, png_ptr->num_trans, - &(png_ptr->trans_values)); -} -#endif - -#if defined(PNG_READ_bKGD_SUPPORTED) -void /* PRIVATE */ -png_handle_bKGD(png_structp png_ptr, png_infop info_ptr, png_uint_32 length) -{ - png_size_t truelen; - png_byte buf[6]; - - png_debug(1, "in png_handle_bKGD\n"); - - if (!(png_ptr->mode & PNG_HAVE_IHDR)) - png_error(png_ptr, "Missing IHDR before bKGD"); - else if (png_ptr->mode & PNG_HAVE_IDAT) - { - png_warning(png_ptr, "Invalid bKGD after IDAT"); - png_crc_finish(png_ptr, length); - return; - } - else if (png_ptr->color_type == PNG_COLOR_TYPE_PALETTE && - !(png_ptr->mode & PNG_HAVE_PLTE)) - { - png_warning(png_ptr, "Missing PLTE before bKGD"); - png_crc_finish(png_ptr, length); - return; - } - else if (info_ptr != NULL && (info_ptr->valid & PNG_INFO_bKGD)) - { - png_warning(png_ptr, "Duplicate bKGD chunk"); - png_crc_finish(png_ptr, length); - return; - } - - if (png_ptr->color_type == PNG_COLOR_TYPE_PALETTE) - truelen = 1; - else if (png_ptr->color_type & PNG_COLOR_MASK_COLOR) - truelen = 6; - else - truelen = 2; - - if (length != truelen) - { - png_warning(png_ptr, "Incorrect bKGD chunk length"); - png_crc_finish(png_ptr, length); - return; - } - - png_crc_read(png_ptr, buf, truelen); - if (png_crc_finish(png_ptr, 0)) - return; - - /* We convert the index value into RGB components so that we can allow - * arbitrary RGB values for background when we have transparency, and - * so it is easy to determine the RGB values of the background color - * from the info_ptr struct. */ - if (png_ptr->color_type == PNG_COLOR_TYPE_PALETTE) - { - png_ptr->background.index = buf[0]; - if(info_ptr->num_palette) - { - if(buf[0] > info_ptr->num_palette) - { - png_warning(png_ptr, "Incorrect bKGD chunk index value"); - return; - } - png_ptr->background.red = - (png_uint_16)png_ptr->palette[buf[0]].red; - png_ptr->background.green = - (png_uint_16)png_ptr->palette[buf[0]].green; - png_ptr->background.blue = - (png_uint_16)png_ptr->palette[buf[0]].blue; - } - } - else if (!(png_ptr->color_type & PNG_COLOR_MASK_COLOR)) /* GRAY */ - { - png_ptr->background.red = - png_ptr->background.green = - png_ptr->background.blue = - png_ptr->background.gray = png_get_uint_16(buf); - } - else - { - png_ptr->background.red = png_get_uint_16(buf); - png_ptr->background.green = png_get_uint_16(buf + 2); - png_ptr->background.blue = png_get_uint_16(buf + 4); - } - - png_set_bKGD(png_ptr, info_ptr, &(png_ptr->background)); -} -#endif - -#if defined(PNG_READ_hIST_SUPPORTED) -void /* PRIVATE */ -png_handle_hIST(png_structp png_ptr, png_infop info_ptr, png_uint_32 length) -{ - unsigned int num, i; - png_uint_16 readbuf[PNG_MAX_PALETTE_LENGTH]; - - png_debug(1, "in png_handle_hIST\n"); - - if (!(png_ptr->mode & PNG_HAVE_IHDR)) - png_error(png_ptr, "Missing IHDR before hIST"); - else if (png_ptr->mode & PNG_HAVE_IDAT) - { - png_warning(png_ptr, "Invalid hIST after IDAT"); - png_crc_finish(png_ptr, length); - return; - } - else if (!(png_ptr->mode & PNG_HAVE_PLTE)) - { - png_warning(png_ptr, "Missing PLTE before hIST"); - png_crc_finish(png_ptr, length); - return; - } - else if (info_ptr != NULL && (info_ptr->valid & PNG_INFO_hIST)) - { - png_warning(png_ptr, "Duplicate hIST chunk"); - png_crc_finish(png_ptr, length); - return; - } - - num = length / 2 ; - if (num != (unsigned int) png_ptr->num_palette || num > - (unsigned int) PNG_MAX_PALETTE_LENGTH) - { - png_warning(png_ptr, "Incorrect hIST chunk length"); - png_crc_finish(png_ptr, length); - return; - } - - for (i = 0; i < num; i++) - { - png_byte buf[2]; - - png_crc_read(png_ptr, buf, 2); - readbuf[i] = png_get_uint_16(buf); - } - - if (png_crc_finish(png_ptr, 0)) - return; - - png_set_hIST(png_ptr, info_ptr, readbuf); -} -#endif - -#if defined(PNG_READ_pHYs_SUPPORTED) -void /* PRIVATE */ -png_handle_pHYs(png_structp png_ptr, png_infop info_ptr, png_uint_32 length) -{ - png_byte buf[9]; - png_uint_32 res_x, res_y; - int unit_type; - - png_debug(1, "in png_handle_pHYs\n"); - - if (!(png_ptr->mode & PNG_HAVE_IHDR)) - png_error(png_ptr, "Missing IHDR before pHYs"); - else if (png_ptr->mode & PNG_HAVE_IDAT) - { - png_warning(png_ptr, "Invalid pHYs after IDAT"); - png_crc_finish(png_ptr, length); - return; - } - else if (info_ptr != NULL && (info_ptr->valid & PNG_INFO_pHYs)) - { - png_warning(png_ptr, "Duplicate pHYs chunk"); - png_crc_finish(png_ptr, length); - return; - } - - if (length != 9) - { - png_warning(png_ptr, "Incorrect pHYs chunk length"); - png_crc_finish(png_ptr, length); - return; - } - - png_crc_read(png_ptr, buf, 9); - if (png_crc_finish(png_ptr, 0)) - return; - - res_x = png_get_uint_32(buf); - res_y = png_get_uint_32(buf + 4); - unit_type = buf[8]; - png_set_pHYs(png_ptr, info_ptr, res_x, res_y, unit_type); -} -#endif - -#if defined(PNG_READ_oFFs_SUPPORTED) -void /* PRIVATE */ -png_handle_oFFs(png_structp png_ptr, png_infop info_ptr, png_uint_32 length) -{ - png_byte buf[9]; - png_int_32 offset_x, offset_y; - int unit_type; - - png_debug(1, "in png_handle_oFFs\n"); - - if (!(png_ptr->mode & PNG_HAVE_IHDR)) - png_error(png_ptr, "Missing IHDR before oFFs"); - else if (png_ptr->mode & PNG_HAVE_IDAT) - { - png_warning(png_ptr, "Invalid oFFs after IDAT"); - png_crc_finish(png_ptr, length); - return; - } - else if (info_ptr != NULL && (info_ptr->valid & PNG_INFO_oFFs)) - { - png_warning(png_ptr, "Duplicate oFFs chunk"); - png_crc_finish(png_ptr, length); - return; - } - - if (length != 9) - { - png_warning(png_ptr, "Incorrect oFFs chunk length"); - png_crc_finish(png_ptr, length); - return; - } - - png_crc_read(png_ptr, buf, 9); - if (png_crc_finish(png_ptr, 0)) - return; - - offset_x = png_get_int_32(buf); - offset_y = png_get_int_32(buf + 4); - unit_type = buf[8]; - png_set_oFFs(png_ptr, info_ptr, offset_x, offset_y, unit_type); -} -#endif - -#if defined(PNG_READ_pCAL_SUPPORTED) -/* read the pCAL chunk (described in the PNG Extensions document) */ -void /* PRIVATE */ -png_handle_pCAL(png_structp png_ptr, png_infop info_ptr, png_uint_32 length) -{ - png_charp purpose; - png_int_32 X0, X1; - png_byte type, nparams; - png_charp buf, units, endptr; - png_charpp params; - png_size_t slength; - int i; - - png_debug(1, "in png_handle_pCAL\n"); - - if (!(png_ptr->mode & PNG_HAVE_IHDR)) - png_error(png_ptr, "Missing IHDR before pCAL"); - else if (png_ptr->mode & PNG_HAVE_IDAT) - { - png_warning(png_ptr, "Invalid pCAL after IDAT"); - png_crc_finish(png_ptr, length); - return; - } - else if (info_ptr != NULL && (info_ptr->valid & PNG_INFO_pCAL)) - { - png_warning(png_ptr, "Duplicate pCAL chunk"); - png_crc_finish(png_ptr, length); - return; - } - - png_debug1(2, "Allocating and reading pCAL chunk data (%lu bytes)\n", - length + 1); - purpose = (png_charp)png_malloc_warn(png_ptr, length + 1); - if (purpose == NULL) - { - png_warning(png_ptr, "No memory for pCAL purpose."); - return; - } - slength = (png_size_t)length; - png_crc_read(png_ptr, (png_bytep)purpose, slength); - - if (png_crc_finish(png_ptr, 0)) - { - png_free(png_ptr, purpose); - return; - } - - purpose[slength] = 0x00; /* null terminate the last string */ - - png_debug(3, "Finding end of pCAL purpose string\n"); - for (buf = purpose; *buf; buf++) - /* empty loop */ ; - - endptr = purpose + slength; - - /* We need to have at least 12 bytes after the purpose string - in order to get the parameter information. */ - if (endptr <= buf + 12) - { - png_warning(png_ptr, "Invalid pCAL data"); - png_free(png_ptr, purpose); - return; - } - - png_debug(3, "Reading pCAL X0, X1, type, nparams, and units\n"); - X0 = png_get_int_32((png_bytep)buf+1); - X1 = png_get_int_32((png_bytep)buf+5); - type = buf[9]; - nparams = buf[10]; - units = buf + 11; - - png_debug(3, "Checking pCAL equation type and number of parameters\n"); - /* Check that we have the right number of parameters for known - equation types. */ - if ((type == PNG_EQUATION_LINEAR && nparams != 2) || - (type == PNG_EQUATION_BASE_E && nparams != 3) || - (type == PNG_EQUATION_ARBITRARY && nparams != 3) || - (type == PNG_EQUATION_HYPERBOLIC && nparams != 4)) - { - png_warning(png_ptr, "Invalid pCAL parameters for equation type"); - png_free(png_ptr, purpose); - return; - } - else if (type >= PNG_EQUATION_LAST) - { - png_warning(png_ptr, "Unrecognized equation type for pCAL chunk"); - } - - for (buf = units; *buf; buf++) - /* Empty loop to move past the units string. */ ; - - png_debug(3, "Allocating pCAL parameters array\n"); - params = (png_charpp)png_malloc_warn(png_ptr, (png_uint_32)(nparams - *png_sizeof(png_charp))) ; - if (params == NULL) - { - png_free(png_ptr, purpose); - png_warning(png_ptr, "No memory for pCAL params."); - return; - } - - /* Get pointers to the start of each parameter string. */ - for (i = 0; i < (int)nparams; i++) - { - buf++; /* Skip the null string terminator from previous parameter. */ - - png_debug1(3, "Reading pCAL parameter %d\n", i); - for (params[i] = buf; buf <= endptr && *buf != 0x00; buf++) - /* Empty loop to move past each parameter string */ ; - - /* Make sure we haven't run out of data yet */ - if (buf > endptr) - { - png_warning(png_ptr, "Invalid pCAL data"); - png_free(png_ptr, purpose); - png_free(png_ptr, params); - return; - } - } - - png_set_pCAL(png_ptr, info_ptr, purpose, X0, X1, type, nparams, - units, params); - - png_free(png_ptr, purpose); - png_free(png_ptr, params); -} -#endif - -#if defined(PNG_READ_sCAL_SUPPORTED) -/* read the sCAL chunk */ -void /* PRIVATE */ -png_handle_sCAL(png_structp png_ptr, png_infop info_ptr, png_uint_32 length) -{ - png_charp buffer, ep; -#ifdef PNG_FLOATING_POINT_SUPPORTED - double width, height; - png_charp vp; -#else -#ifdef PNG_FIXED_POINT_SUPPORTED - png_charp swidth, sheight; -#endif -#endif - png_size_t slength; - - png_debug(1, "in png_handle_sCAL\n"); - - if (!(png_ptr->mode & PNG_HAVE_IHDR)) - png_error(png_ptr, "Missing IHDR before sCAL"); - else if (png_ptr->mode & PNG_HAVE_IDAT) - { - png_warning(png_ptr, "Invalid sCAL after IDAT"); - png_crc_finish(png_ptr, length); - return; - } - else if (info_ptr != NULL && (info_ptr->valid & PNG_INFO_sCAL)) - { - png_warning(png_ptr, "Duplicate sCAL chunk"); - png_crc_finish(png_ptr, length); - return; - } - - png_debug1(2, "Allocating and reading sCAL chunk data (%lu bytes)\n", - length + 1); - buffer = (png_charp)png_malloc_warn(png_ptr, length + 1); - if (buffer == NULL) - { - png_warning(png_ptr, "Out of memory while processing sCAL chunk"); - return; - } - slength = (png_size_t)length; - png_crc_read(png_ptr, (png_bytep)buffer, slength); - - if (png_crc_finish(png_ptr, 0)) - { - png_free(png_ptr, buffer); - return; - } - - buffer[slength] = 0x00; /* null terminate the last string */ - - ep = buffer + 1; /* skip unit byte */ - -#ifdef PNG_FLOATING_POINT_SUPPORTED - width = png_strtod(png_ptr, ep, &vp); - if (*vp) - { - png_warning(png_ptr, "malformed width string in sCAL chunk"); - return; - } -#else -#ifdef PNG_FIXED_POINT_SUPPORTED - swidth = (png_charp)png_malloc_warn(png_ptr, png_strlen(ep) + 1); - if (swidth == NULL) - { - png_warning(png_ptr, "Out of memory while processing sCAL chunk width"); - return; - } - png_memcpy(swidth, ep, (png_size_t)png_strlen(ep)); -#endif -#endif - - for (ep = buffer; *ep; ep++) - /* empty loop */ ; - ep++; - - if (buffer + slength < ep) - { - png_warning(png_ptr, "Truncated sCAL chunk"); -#if defined(PNG_FIXED_POINT_SUPPORTED) && \ - !defined(PNG_FLOATING_POINT_SUPPORTED) - png_free(png_ptr, swidth); -#endif - png_free(png_ptr, buffer); - return; - } - -#ifdef PNG_FLOATING_POINT_SUPPORTED - height = png_strtod(png_ptr, ep, &vp); - if (*vp) - { - png_warning(png_ptr, "malformed height string in sCAL chunk"); - return; - } -#else -#ifdef PNG_FIXED_POINT_SUPPORTED - sheight = (png_charp)png_malloc_warn(png_ptr, png_strlen(ep) + 1); - if (swidth == NULL) - { - png_warning(png_ptr, "Out of memory while processing sCAL chunk height"); - return; - } - png_memcpy(sheight, ep, (png_size_t)png_strlen(ep)); -#endif -#endif - - if (buffer + slength < ep -#ifdef PNG_FLOATING_POINT_SUPPORTED - || width <= 0. || height <= 0. -#endif - ) - { - png_warning(png_ptr, "Invalid sCAL data"); - png_free(png_ptr, buffer); -#if defined(PNG_FIXED_POINT_SUPPORTED) && !defined(PNG_FLOATING_POINT_SUPPORTED) - png_free(png_ptr, swidth); - png_free(png_ptr, sheight); -#endif - return; - } - - -#ifdef PNG_FLOATING_POINT_SUPPORTED - png_set_sCAL(png_ptr, info_ptr, buffer[0], width, height); -#else -#ifdef PNG_FIXED_POINT_SUPPORTED - png_set_sCAL_s(png_ptr, info_ptr, buffer[0], swidth, sheight); -#endif -#endif - - png_free(png_ptr, buffer); -#if defined(PNG_FIXED_POINT_SUPPORTED) && !defined(PNG_FLOATING_POINT_SUPPORTED) - png_free(png_ptr, swidth); - png_free(png_ptr, sheight); -#endif -} -#endif - -#if defined(PNG_READ_tIME_SUPPORTED) -void /* PRIVATE */ -png_handle_tIME(png_structp png_ptr, png_infop info_ptr, png_uint_32 length) -{ - png_byte buf[7]; - png_time mod_time; - - png_debug(1, "in png_handle_tIME\n"); - - if (!(png_ptr->mode & PNG_HAVE_IHDR)) - png_error(png_ptr, "Out of place tIME chunk"); - else if (info_ptr != NULL && (info_ptr->valid & PNG_INFO_tIME)) - { - png_warning(png_ptr, "Duplicate tIME chunk"); - png_crc_finish(png_ptr, length); - return; - } - - if (png_ptr->mode & PNG_HAVE_IDAT) - png_ptr->mode |= PNG_AFTER_IDAT; - - if (length != 7) - { - png_warning(png_ptr, "Incorrect tIME chunk length"); - png_crc_finish(png_ptr, length); - return; - } - - png_crc_read(png_ptr, buf, 7); - if (png_crc_finish(png_ptr, 0)) - return; - - mod_time.second = buf[6]; - mod_time.minute = buf[5]; - mod_time.hour = buf[4]; - mod_time.day = buf[3]; - mod_time.month = buf[2]; - mod_time.year = png_get_uint_16(buf); - - png_set_tIME(png_ptr, info_ptr, &mod_time); -} -#endif - -#if defined(PNG_READ_tEXt_SUPPORTED) -/* Note: this does not properly handle chunks that are > 64K under DOS */ -void /* PRIVATE */ -png_handle_tEXt(png_structp png_ptr, png_infop info_ptr, png_uint_32 length) -{ - png_textp text_ptr; - png_charp key; - png_charp text; - png_uint_32 skip = 0; - png_size_t slength; - int ret; - - png_debug(1, "in png_handle_tEXt\n"); - - if (!(png_ptr->mode & PNG_HAVE_IHDR)) - png_error(png_ptr, "Missing IHDR before tEXt"); - - if (png_ptr->mode & PNG_HAVE_IDAT) - png_ptr->mode |= PNG_AFTER_IDAT; - -#ifdef PNG_MAX_MALLOC_64K - if (length > (png_uint_32)65535L) - { - png_warning(png_ptr, "tEXt chunk too large to fit in memory"); - skip = length - (png_uint_32)65535L; - length = (png_uint_32)65535L; - } -#endif - - key = (png_charp)png_malloc_warn(png_ptr, length + 1); - if (key == NULL) - { - png_warning(png_ptr, "No memory to process text chunk."); - return; - } - slength = (png_size_t)length; - png_crc_read(png_ptr, (png_bytep)key, slength); - - if (png_crc_finish(png_ptr, skip)) - { - png_free(png_ptr, key); - return; - } - - key[slength] = 0x00; - - for (text = key; *text; text++) - /* empty loop to find end of key */ ; - - if (text != key + slength) - text++; - - text_ptr = (png_textp)png_malloc_warn(png_ptr, - (png_uint_32)png_sizeof(png_text)); - if (text_ptr == NULL) - { - png_warning(png_ptr, "Not enough memory to process text chunk."); - png_free(png_ptr, key); - return; - } - text_ptr->compression = PNG_TEXT_COMPRESSION_NONE; - text_ptr->key = key; -#ifdef PNG_iTXt_SUPPORTED - text_ptr->lang = NULL; - text_ptr->lang_key = NULL; - text_ptr->itxt_length = 0; -#endif - text_ptr->text = text; - text_ptr->text_length = png_strlen(text); - - ret=png_set_text_2(png_ptr, info_ptr, text_ptr, 1); - - png_free(png_ptr, key); - png_free(png_ptr, text_ptr); - if (ret) - png_warning(png_ptr, "Insufficient memory to process text chunk."); -} -#endif - -#if defined(PNG_READ_zTXt_SUPPORTED) -/* note: this does not correctly handle chunks that are > 64K under DOS */ -void /* PRIVATE */ -png_handle_zTXt(png_structp png_ptr, png_infop info_ptr, png_uint_32 length) -{ - png_textp text_ptr; - png_charp chunkdata; - png_charp text; - int comp_type; - int ret; - png_size_t slength, prefix_len, data_len; - - png_debug(1, "in png_handle_zTXt\n"); - if (!(png_ptr->mode & PNG_HAVE_IHDR)) - png_error(png_ptr, "Missing IHDR before zTXt"); - - if (png_ptr->mode & PNG_HAVE_IDAT) - png_ptr->mode |= PNG_AFTER_IDAT; - -#ifdef PNG_MAX_MALLOC_64K - /* We will no doubt have problems with chunks even half this size, but - there is no hard and fast rule to tell us where to stop. */ - if (length > (png_uint_32)65535L) - { - png_warning(png_ptr,"zTXt chunk too large to fit in memory"); - png_crc_finish(png_ptr, length); - return; - } -#endif - - chunkdata = (png_charp)png_malloc_warn(png_ptr, length + 1); - if (chunkdata == NULL) - { - png_warning(png_ptr,"Out of memory processing zTXt chunk."); - return; - } - slength = (png_size_t)length; - png_crc_read(png_ptr, (png_bytep)chunkdata, slength); - if (png_crc_finish(png_ptr, 0)) - { - png_free(png_ptr, chunkdata); - return; - } - - chunkdata[slength] = 0x00; - - for (text = chunkdata; *text; text++) - /* empty loop */ ; - - /* zTXt must have some text after the chunkdataword */ - if (text >= chunkdata + slength - 2) - { - png_warning(png_ptr, "Truncated zTXt chunk"); - png_free(png_ptr, chunkdata); - return; - } - else - { - comp_type = *(++text); - if (comp_type != PNG_TEXT_COMPRESSION_zTXt) - { - png_warning(png_ptr, "Unknown compression type in zTXt chunk"); - comp_type = PNG_TEXT_COMPRESSION_zTXt; - } - text++; /* skip the compression_method byte */ - } - prefix_len = text - chunkdata; - - chunkdata = (png_charp)png_decompress_chunk(png_ptr, comp_type, chunkdata, - (png_size_t)length, prefix_len, &data_len); - - text_ptr = (png_textp)png_malloc_warn(png_ptr, - (png_uint_32)png_sizeof(png_text)); - if (text_ptr == NULL) - { - png_warning(png_ptr,"Not enough memory to process zTXt chunk."); - png_free(png_ptr, chunkdata); - return; - } - text_ptr->compression = comp_type; - text_ptr->key = chunkdata; -#ifdef PNG_iTXt_SUPPORTED - text_ptr->lang = NULL; - text_ptr->lang_key = NULL; - text_ptr->itxt_length = 0; -#endif - text_ptr->text = chunkdata + prefix_len; - text_ptr->text_length = data_len; - - ret=png_set_text_2(png_ptr, info_ptr, text_ptr, 1); - - png_free(png_ptr, text_ptr); - png_free(png_ptr, chunkdata); - if (ret) - png_error(png_ptr, "Insufficient memory to store zTXt chunk."); -} -#endif - -#if defined(PNG_READ_iTXt_SUPPORTED) -/* note: this does not correctly handle chunks that are > 64K under DOS */ -void /* PRIVATE */ -png_handle_iTXt(png_structp png_ptr, png_infop info_ptr, png_uint_32 length) -{ - png_textp text_ptr; - png_charp chunkdata; - png_charp key, lang, text, lang_key; - int comp_flag; - int comp_type = 0; - int ret; - png_size_t slength, prefix_len, data_len; - - png_debug(1, "in png_handle_iTXt\n"); - - if (!(png_ptr->mode & PNG_HAVE_IHDR)) - png_error(png_ptr, "Missing IHDR before iTXt"); - - if (png_ptr->mode & PNG_HAVE_IDAT) - png_ptr->mode |= PNG_AFTER_IDAT; - -#ifdef PNG_MAX_MALLOC_64K - /* We will no doubt have problems with chunks even half this size, but - there is no hard and fast rule to tell us where to stop. */ - if (length > (png_uint_32)65535L) - { - png_warning(png_ptr,"iTXt chunk too large to fit in memory"); - png_crc_finish(png_ptr, length); - return; - } -#endif - - chunkdata = (png_charp)png_malloc_warn(png_ptr, length + 1); - if (chunkdata == NULL) - { - png_warning(png_ptr, "No memory to process iTXt chunk."); - return; - } - slength = (png_size_t)length; - png_crc_read(png_ptr, (png_bytep)chunkdata, slength); - if (png_crc_finish(png_ptr, 0)) - { - png_free(png_ptr, chunkdata); - return; - } - - chunkdata[slength] = 0x00; - - for (lang = chunkdata; *lang; lang++) - /* empty loop */ ; - lang++; /* skip NUL separator */ - - /* iTXt must have a language tag (possibly empty), two compression bytes, - translated keyword (possibly empty), and possibly some text after the - keyword */ - - if (lang >= chunkdata + slength - 3) - { - png_warning(png_ptr, "Truncated iTXt chunk"); - png_free(png_ptr, chunkdata); - return; - } - else - { - comp_flag = *lang++; - comp_type = *lang++; - } - - for (lang_key = lang; *lang_key; lang_key++) - /* empty loop */ ; - lang_key++; /* skip NUL separator */ - - if (lang_key >= chunkdata + slength) - { - png_warning(png_ptr, "Truncated iTXt chunk"); - png_free(png_ptr, chunkdata); - return; - } - - for (text = lang_key; *text; text++) - /* empty loop */ ; - text++; /* skip NUL separator */ - if (text >= chunkdata + slength) - { - png_warning(png_ptr, "Malformed iTXt chunk"); - png_free(png_ptr, chunkdata); - return; - } - - prefix_len = text - chunkdata; - - key=chunkdata; - if (comp_flag) - chunkdata = png_decompress_chunk(png_ptr, comp_type, chunkdata, - (size_t)length, prefix_len, &data_len); - else - data_len=png_strlen(chunkdata + prefix_len); - text_ptr = (png_textp)png_malloc_warn(png_ptr, - (png_uint_32)png_sizeof(png_text)); - if (text_ptr == NULL) - { - png_warning(png_ptr,"Not enough memory to process iTXt chunk."); - png_free(png_ptr, chunkdata); - return; - } - text_ptr->compression = (int)comp_flag + 1; - text_ptr->lang_key = chunkdata+(lang_key-key); - text_ptr->lang = chunkdata+(lang-key); - text_ptr->itxt_length = data_len; - text_ptr->text_length = 0; - text_ptr->key = chunkdata; - text_ptr->text = chunkdata + prefix_len; - - ret=png_set_text_2(png_ptr, info_ptr, text_ptr, 1); - - png_free(png_ptr, text_ptr); - png_free(png_ptr, chunkdata); - if (ret) - png_error(png_ptr, "Insufficient memory to store iTXt chunk."); -} -#endif - -/* This function is called when we haven't found a handler for a - chunk. If there isn't a problem with the chunk itself (ie bad - chunk name, CRC, or a critical chunk), the chunk is silently ignored - -- unless the PNG_FLAG_UNKNOWN_CHUNKS_SUPPORTED flag is on in which - case it will be saved away to be written out later. */ -void /* PRIVATE */ -png_handle_unknown(png_structp png_ptr, png_infop info_ptr, png_uint_32 length) -{ - png_uint_32 skip = 0; - - png_debug(1, "in png_handle_unknown\n"); - - if (png_ptr->mode & PNG_HAVE_IDAT) - { -#ifdef PNG_USE_LOCAL_ARRAYS - PNG_CONST PNG_IDAT; -#endif - if (png_memcmp(png_ptr->chunk_name, png_IDAT, 4)) /* not an IDAT */ - png_ptr->mode |= PNG_AFTER_IDAT; - } - - png_check_chunk_name(png_ptr, png_ptr->chunk_name); - - if (!(png_ptr->chunk_name[0] & 0x20)) - { -#if defined(PNG_READ_UNKNOWN_CHUNKS_SUPPORTED) - if(png_handle_as_unknown(png_ptr, png_ptr->chunk_name) != - PNG_HANDLE_CHUNK_ALWAYS -#if defined(PNG_READ_USER_CHUNKS_SUPPORTED) - && png_ptr->read_user_chunk_fn == NULL -#endif - ) -#endif - png_chunk_error(png_ptr, "unknown critical chunk"); - } - -#if defined(PNG_READ_UNKNOWN_CHUNKS_SUPPORTED) - if ((png_ptr->flags & PNG_FLAG_KEEP_UNKNOWN_CHUNKS) || - (png_ptr->read_user_chunk_fn != NULL)) - { -#ifdef PNG_MAX_MALLOC_64K - if (length > (png_uint_32)65535L) - { - png_warning(png_ptr, "unknown chunk too large to fit in memory"); - skip = length - (png_uint_32)65535L; - length = (png_uint_32)65535L; - } -#endif - png_memcpy((png_charp)png_ptr->unknown_chunk.name, - (png_charp)png_ptr->chunk_name, - png_sizeof(png_ptr->unknown_chunk.name)); - png_ptr->unknown_chunk.name[png_sizeof(png_ptr->unknown_chunk.name)-1] = '\0'; - png_ptr->unknown_chunk.data = (png_bytep)png_malloc(png_ptr, length); - png_ptr->unknown_chunk.size = (png_size_t)length; - png_crc_read(png_ptr, (png_bytep)png_ptr->unknown_chunk.data, length); -#if defined(PNG_READ_USER_CHUNKS_SUPPORTED) - if(png_ptr->read_user_chunk_fn != NULL) - { - /* callback to user unknown chunk handler */ - int ret; - ret = (*(png_ptr->read_user_chunk_fn)) - (png_ptr, &png_ptr->unknown_chunk); - if (ret < 0) - png_chunk_error(png_ptr, "error in user chunk"); - if (ret == 0) - { - if (!(png_ptr->chunk_name[0] & 0x20)) - if(png_handle_as_unknown(png_ptr, png_ptr->chunk_name) != - PNG_HANDLE_CHUNK_ALWAYS) - png_chunk_error(png_ptr, "unknown critical chunk"); - png_set_unknown_chunks(png_ptr, info_ptr, - &png_ptr->unknown_chunk, 1); - } - } -#else - png_set_unknown_chunks(png_ptr, info_ptr, &png_ptr->unknown_chunk, 1); -#endif - png_free(png_ptr, png_ptr->unknown_chunk.data); - png_ptr->unknown_chunk.data = NULL; - } - else -#endif - skip = length; - - png_crc_finish(png_ptr, skip); - -#if !defined(PNG_READ_USER_CHUNKS_SUPPORTED) - info_ptr = info_ptr; /* quiet compiler warnings about unused info_ptr */ -#endif -} - -/* This function is called to verify that a chunk name is valid. - This function can't have the "critical chunk check" incorporated - into it, since in the future we will need to be able to call user - functions to handle unknown critical chunks after we check that - the chunk name itself is valid. */ - -#define isnonalpha(c) ((c) < 65 || (c) > 122 || ((c) > 90 && (c) < 97)) - -void /* PRIVATE */ -png_check_chunk_name(png_structp png_ptr, png_bytep chunk_name) -{ - png_debug(1, "in png_check_chunk_name\n"); - if (isnonalpha(chunk_name[0]) || isnonalpha(chunk_name[1]) || - isnonalpha(chunk_name[2]) || isnonalpha(chunk_name[3])) - { - png_chunk_error(png_ptr, "invalid chunk type"); - } -} - -/* Combines the row recently read in with the existing pixels in the - row. This routine takes care of alpha and transparency if requested. - This routine also handles the two methods of progressive display - of interlaced images, depending on the mask value. - The mask value describes which pixels are to be combined with - the row. The pattern always repeats every 8 pixels, so just 8 - bits are needed. A one indicates the pixel is to be combined, - a zero indicates the pixel is to be skipped. This is in addition - to any alpha or transparency value associated with the pixel. If - you want all pixels to be combined, pass 0xff (255) in mask. */ - -void /* PRIVATE */ -png_combine_row(png_structp png_ptr, png_bytep row, int mask) -{ - png_debug(1,"in png_combine_row\n"); - if (mask == 0xff) - { - png_memcpy(row, png_ptr->row_buf + 1, - PNG_ROWBYTES(png_ptr->row_info.pixel_depth, png_ptr->width)); - } - else - { - switch (png_ptr->row_info.pixel_depth) - { - case 1: - { - png_bytep sp = png_ptr->row_buf + 1; - png_bytep dp = row; - int s_inc, s_start, s_end; - int m = 0x80; - int shift; - png_uint_32 i; - png_uint_32 row_width = png_ptr->width; - -#if defined(PNG_READ_PACKSWAP_SUPPORTED) - if (png_ptr->transformations & PNG_PACKSWAP) - { - s_start = 0; - s_end = 7; - s_inc = 1; - } - else -#endif - { - s_start = 7; - s_end = 0; - s_inc = -1; - } - - shift = s_start; - - for (i = 0; i < row_width; i++) - { - if (m & mask) - { - int value; - - value = (*sp >> shift) & 0x01; - *dp &= (png_byte)((0x7f7f >> (7 - shift)) & 0xff); - *dp |= (png_byte)(value << shift); - } - - if (shift == s_end) - { - shift = s_start; - sp++; - dp++; - } - else - shift += s_inc; - - if (m == 1) - m = 0x80; - else - m >>= 1; - } - break; - } - case 2: - { - png_bytep sp = png_ptr->row_buf + 1; - png_bytep dp = row; - int s_start, s_end, s_inc; - int m = 0x80; - int shift; - png_uint_32 i; - png_uint_32 row_width = png_ptr->width; - int value; - -#if defined(PNG_READ_PACKSWAP_SUPPORTED) - if (png_ptr->transformations & PNG_PACKSWAP) - { - s_start = 0; - s_end = 6; - s_inc = 2; - } - else -#endif - { - s_start = 6; - s_end = 0; - s_inc = -2; - } - - shift = s_start; - - for (i = 0; i < row_width; i++) - { - if (m & mask) - { - value = (*sp >> shift) & 0x03; - *dp &= (png_byte)((0x3f3f >> (6 - shift)) & 0xff); - *dp |= (png_byte)(value << shift); - } - - if (shift == s_end) - { - shift = s_start; - sp++; - dp++; - } - else - shift += s_inc; - if (m == 1) - m = 0x80; - else - m >>= 1; - } - break; - } - case 4: - { - png_bytep sp = png_ptr->row_buf + 1; - png_bytep dp = row; - int s_start, s_end, s_inc; - int m = 0x80; - int shift; - png_uint_32 i; - png_uint_32 row_width = png_ptr->width; - int value; - -#if defined(PNG_READ_PACKSWAP_SUPPORTED) - if (png_ptr->transformations & PNG_PACKSWAP) - { - s_start = 0; - s_end = 4; - s_inc = 4; - } - else -#endif - { - s_start = 4; - s_end = 0; - s_inc = -4; - } - shift = s_start; - - for (i = 0; i < row_width; i++) - { - if (m & mask) - { - value = (*sp >> shift) & 0xf; - *dp &= (png_byte)((0xf0f >> (4 - shift)) & 0xff); - *dp |= (png_byte)(value << shift); - } - - if (shift == s_end) - { - shift = s_start; - sp++; - dp++; - } - else - shift += s_inc; - if (m == 1) - m = 0x80; - else - m >>= 1; - } - break; - } - default: - { - png_bytep sp = png_ptr->row_buf + 1; - png_bytep dp = row; - png_size_t pixel_bytes = (png_ptr->row_info.pixel_depth >> 3); - png_uint_32 i; - png_uint_32 row_width = png_ptr->width; - png_byte m = 0x80; - - - for (i = 0; i < row_width; i++) - { - if (m & mask) - { - png_memcpy(dp, sp, pixel_bytes); - } - - sp += pixel_bytes; - dp += pixel_bytes; - - if (m == 1) - m = 0x80; - else - m >>= 1; - } - break; - } - } - } -} - -#ifdef PNG_READ_INTERLACING_SUPPORTED -/* OLD pre-1.0.9 interface: -void png_do_read_interlace(png_row_infop row_info, png_bytep row, int pass, - png_uint_32 transformations) - */ -void /* PRIVATE */ -png_do_read_interlace(png_structp png_ptr) -{ - png_row_infop row_info = &(png_ptr->row_info); - png_bytep row = png_ptr->row_buf + 1; - int pass = png_ptr->pass; - png_uint_32 transformations = png_ptr->transformations; -#ifdef PNG_USE_LOCAL_ARRAYS - /* arrays to facilitate easy interlacing - use pass (0 - 6) as index */ - /* offset to next interlace block */ - PNG_CONST int png_pass_inc[7] = {8, 8, 4, 4, 2, 2, 1}; -#endif - - png_debug(1,"in png_do_read_interlace\n"); - if (row != NULL && row_info != NULL) - { - png_uint_32 final_width; - - final_width = row_info->width * png_pass_inc[pass]; - - switch (row_info->pixel_depth) - { - case 1: - { - png_bytep sp = row + (png_size_t)((row_info->width - 1) >> 3); - png_bytep dp = row + (png_size_t)((final_width - 1) >> 3); - int sshift, dshift; - int s_start, s_end, s_inc; - int jstop = png_pass_inc[pass]; - png_byte v; - png_uint_32 i; - int j; - -#if defined(PNG_READ_PACKSWAP_SUPPORTED) - if (transformations & PNG_PACKSWAP) - { - sshift = (int)((row_info->width + 7) & 0x07); - dshift = (int)((final_width + 7) & 0x07); - s_start = 7; - s_end = 0; - s_inc = -1; - } - else -#endif - { - sshift = 7 - (int)((row_info->width + 7) & 0x07); - dshift = 7 - (int)((final_width + 7) & 0x07); - s_start = 0; - s_end = 7; - s_inc = 1; - } - - for (i = 0; i < row_info->width; i++) - { - v = (png_byte)((*sp >> sshift) & 0x01); - for (j = 0; j < jstop; j++) - { - *dp &= (png_byte)((0x7f7f >> (7 - dshift)) & 0xff); - *dp |= (png_byte)(v << dshift); - if (dshift == s_end) - { - dshift = s_start; - dp--; - } - else - dshift += s_inc; - } - if (sshift == s_end) - { - sshift = s_start; - sp--; - } - else - sshift += s_inc; - } - break; - } - case 2: - { - png_bytep sp = row + (png_uint_32)((row_info->width - 1) >> 2); - png_bytep dp = row + (png_uint_32)((final_width - 1) >> 2); - int sshift, dshift; - int s_start, s_end, s_inc; - int jstop = png_pass_inc[pass]; - png_uint_32 i; - -#if defined(PNG_READ_PACKSWAP_SUPPORTED) - if (transformations & PNG_PACKSWAP) - { - sshift = (int)(((row_info->width + 3) & 0x03) << 1); - dshift = (int)(((final_width + 3) & 0x03) << 1); - s_start = 6; - s_end = 0; - s_inc = -2; - } - else -#endif - { - sshift = (int)((3 - ((row_info->width + 3) & 0x03)) << 1); - dshift = (int)((3 - ((final_width + 3) & 0x03)) << 1); - s_start = 0; - s_end = 6; - s_inc = 2; - } - - for (i = 0; i < row_info->width; i++) - { - png_byte v; - int j; - - v = (png_byte)((*sp >> sshift) & 0x03); - for (j = 0; j < jstop; j++) - { - *dp &= (png_byte)((0x3f3f >> (6 - dshift)) & 0xff); - *dp |= (png_byte)(v << dshift); - if (dshift == s_end) - { - dshift = s_start; - dp--; - } - else - dshift += s_inc; - } - if (sshift == s_end) - { - sshift = s_start; - sp--; - } - else - sshift += s_inc; - } - break; - } - case 4: - { - png_bytep sp = row + (png_size_t)((row_info->width - 1) >> 1); - png_bytep dp = row + (png_size_t)((final_width - 1) >> 1); - int sshift, dshift; - int s_start, s_end, s_inc; - png_uint_32 i; - int jstop = png_pass_inc[pass]; - -#if defined(PNG_READ_PACKSWAP_SUPPORTED) - if (transformations & PNG_PACKSWAP) - { - sshift = (int)(((row_info->width + 1) & 0x01) << 2); - dshift = (int)(((final_width + 1) & 0x01) << 2); - s_start = 4; - s_end = 0; - s_inc = -4; - } - else -#endif - { - sshift = (int)((1 - ((row_info->width + 1) & 0x01)) << 2); - dshift = (int)((1 - ((final_width + 1) & 0x01)) << 2); - s_start = 0; - s_end = 4; - s_inc = 4; - } - - for (i = 0; i < row_info->width; i++) - { - png_byte v = (png_byte)((*sp >> sshift) & 0xf); - int j; - - for (j = 0; j < jstop; j++) - { - *dp &= (png_byte)((0xf0f >> (4 - dshift)) & 0xff); - *dp |= (png_byte)(v << dshift); - if (dshift == s_end) - { - dshift = s_start; - dp--; - } - else - dshift += s_inc; - } - if (sshift == s_end) - { - sshift = s_start; - sp--; - } - else - sshift += s_inc; - } - break; - } - default: - { - png_size_t pixel_bytes = (row_info->pixel_depth >> 3); - png_bytep sp = row + (png_size_t)(row_info->width - 1) * pixel_bytes; - png_bytep dp = row + (png_size_t)(final_width - 1) * pixel_bytes; - - int jstop = png_pass_inc[pass]; - png_uint_32 i; - - for (i = 0; i < row_info->width; i++) - { - png_byte v[8]; - int j; - - png_memcpy(v, sp, pixel_bytes); - for (j = 0; j < jstop; j++) - { - png_memcpy(dp, v, pixel_bytes); - dp -= pixel_bytes; - } - sp -= pixel_bytes; - } - break; - } - } - row_info->width = final_width; - row_info->rowbytes = PNG_ROWBYTES(row_info->pixel_depth,final_width); - } -#if !defined(PNG_READ_PACKSWAP_SUPPORTED) - transformations = transformations; /* silence compiler warning */ -#endif -} -#endif /* PNG_READ_INTERLACING_SUPPORTED */ - -void /* PRIVATE */ -png_read_filter_row(png_structp png_ptr, png_row_infop row_info, png_bytep row, - png_bytep prev_row, int filter) -{ - png_debug(1, "in png_read_filter_row\n"); - png_debug2(2,"row = %lu, filter = %d\n", png_ptr->row_number, filter); - switch (filter) - { - case PNG_FILTER_VALUE_NONE: - break; - case PNG_FILTER_VALUE_SUB: - { - png_uint_32 i; - png_uint_32 istop = row_info->rowbytes; - png_uint_32 bpp = (row_info->pixel_depth + 7) >> 3; - png_bytep rp = row + bpp; - png_bytep lp = row; - - for (i = bpp; i < istop; i++) - { - *rp = (png_byte)(((int)(*rp) + (int)(*lp++)) & 0xff); - rp++; - } - break; - } - case PNG_FILTER_VALUE_UP: - { - png_uint_32 i; - png_uint_32 istop = row_info->rowbytes; - png_bytep rp = row; - png_bytep pp = prev_row; - - for (i = 0; i < istop; i++) - { - *rp = (png_byte)(((int)(*rp) + (int)(*pp++)) & 0xff); - rp++; - } - break; - } - case PNG_FILTER_VALUE_AVG: - { - png_uint_32 i; - png_bytep rp = row; - png_bytep pp = prev_row; - png_bytep lp = row; - png_uint_32 bpp = (row_info->pixel_depth + 7) >> 3; - png_uint_32 istop = row_info->rowbytes - bpp; - - for (i = 0; i < bpp; i++) - { - *rp = (png_byte)(((int)(*rp) + - ((int)(*pp++) / 2 )) & 0xff); - rp++; - } - - for (i = 0; i < istop; i++) - { - *rp = (png_byte)(((int)(*rp) + - (int)(*pp++ + *lp++) / 2 ) & 0xff); - rp++; - } - break; - } - case PNG_FILTER_VALUE_PAETH: - { - png_uint_32 i; - png_bytep rp = row; - png_bytep pp = prev_row; - png_bytep lp = row; - png_bytep cp = prev_row; - png_uint_32 bpp = (row_info->pixel_depth + 7) >> 3; - png_uint_32 istop=row_info->rowbytes - bpp; - - for (i = 0; i < bpp; i++) - { - *rp = (png_byte)(((int)(*rp) + (int)(*pp++)) & 0xff); - rp++; - } - - for (i = 0; i < istop; i++) /* use leftover rp,pp */ - { - int a, b, c, pa, pb, pc, p; - - a = *lp++; - b = *pp++; - c = *cp++; - - p = b - c; - pc = a - c; - -#ifdef PNG_USE_ABS - pa = abs(p); - pb = abs(pc); - pc = abs(p + pc); -#else - pa = p < 0 ? -p : p; - pb = pc < 0 ? -pc : pc; - pc = (p + pc) < 0 ? -(p + pc) : p + pc; -#endif - - /* - if (pa <= pb && pa <= pc) - p = a; - else if (pb <= pc) - p = b; - else - p = c; - */ - - p = (pa <= pb && pa <=pc) ? a : (pb <= pc) ? b : c; - - *rp = (png_byte)(((int)(*rp) + p) & 0xff); - rp++; - } - break; - } - default: - png_warning(png_ptr, "Ignoring bad adaptive filter type"); - *row=0; - break; - } -} - -void /* PRIVATE */ -png_read_finish_row(png_structp png_ptr) -{ -#ifdef PNG_USE_LOCAL_ARRAYS - /* arrays to facilitate easy interlacing - use pass (0 - 6) as index */ - - /* start of interlace block */ - PNG_CONST int png_pass_start[7] = {0, 4, 0, 2, 0, 1, 0}; - - /* offset to next interlace block */ - PNG_CONST int png_pass_inc[7] = {8, 8, 4, 4, 2, 2, 1}; - - /* start of interlace block in the y direction */ - PNG_CONST int png_pass_ystart[7] = {0, 0, 4, 0, 2, 0, 1}; - - /* offset to next interlace block in the y direction */ - PNG_CONST int png_pass_yinc[7] = {8, 8, 8, 4, 4, 2, 2}; -#endif - - png_debug(1, "in png_read_finish_row\n"); - png_ptr->row_number++; - if (png_ptr->row_number < png_ptr->num_rows) - return; - - if (png_ptr->interlaced) - { - png_ptr->row_number = 0; - png_memset_check(png_ptr, png_ptr->prev_row, 0, - png_ptr->rowbytes + 1); - do - { - png_ptr->pass++; - if (png_ptr->pass >= 7) - break; - png_ptr->iwidth = (png_ptr->width + - png_pass_inc[png_ptr->pass] - 1 - - png_pass_start[png_ptr->pass]) / - png_pass_inc[png_ptr->pass]; - - png_ptr->irowbytes = PNG_ROWBYTES(png_ptr->pixel_depth, - png_ptr->iwidth) + 1; - - if (!(png_ptr->transformations & PNG_INTERLACE)) - { - png_ptr->num_rows = (png_ptr->height + - png_pass_yinc[png_ptr->pass] - 1 - - png_pass_ystart[png_ptr->pass]) / - png_pass_yinc[png_ptr->pass]; - if (!(png_ptr->num_rows)) - continue; - } - else /* if (png_ptr->transformations & PNG_INTERLACE) */ - break; - } while (png_ptr->iwidth == 0); - - if (png_ptr->pass < 7) - return; - } - - if (!(png_ptr->flags & PNG_FLAG_ZLIB_FINISHED)) - { -#ifdef PNG_USE_LOCAL_ARRAYS - PNG_CONST PNG_IDAT; -#endif - char extra; - int ret; - - png_ptr->zstream.next_out = (Byte *)&extra; - png_ptr->zstream.avail_out = (uInt)1; - for(;;) - { - if (!(png_ptr->zstream.avail_in)) - { - while (!png_ptr->idat_size) - { - png_byte chunk_length[4]; - - png_crc_finish(png_ptr, 0); - - png_read_data(png_ptr, chunk_length, 4); - png_ptr->idat_size = png_get_uint_31(png_ptr, chunk_length); - png_reset_crc(png_ptr); - png_crc_read(png_ptr, png_ptr->chunk_name, 4); - if (png_memcmp(png_ptr->chunk_name, png_IDAT, 4)) - png_error(png_ptr, "Not enough image data"); - - } - png_ptr->zstream.avail_in = (uInt)png_ptr->zbuf_size; - png_ptr->zstream.next_in = png_ptr->zbuf; - if (png_ptr->zbuf_size > png_ptr->idat_size) - png_ptr->zstream.avail_in = (uInt)png_ptr->idat_size; - png_crc_read(png_ptr, png_ptr->zbuf, png_ptr->zstream.avail_in); - png_ptr->idat_size -= png_ptr->zstream.avail_in; - } - ret = inflate(&png_ptr->zstream, Z_PARTIAL_FLUSH); - if (ret == Z_STREAM_END) - { - if (!(png_ptr->zstream.avail_out) || png_ptr->zstream.avail_in || - png_ptr->idat_size) - png_warning(png_ptr, "Extra compressed data"); - png_ptr->mode |= PNG_AFTER_IDAT; - png_ptr->flags |= PNG_FLAG_ZLIB_FINISHED; - break; - } - if (ret != Z_OK) - png_error(png_ptr, png_ptr->zstream.msg ? png_ptr->zstream.msg : - "Decompression Error"); - - if (!(png_ptr->zstream.avail_out)) - { - png_warning(png_ptr, "Extra compressed data."); - png_ptr->mode |= PNG_AFTER_IDAT; - png_ptr->flags |= PNG_FLAG_ZLIB_FINISHED; - break; - } - - } - png_ptr->zstream.avail_out = 0; - } - - if (png_ptr->idat_size || png_ptr->zstream.avail_in) - png_warning(png_ptr, "Extra compression data"); - - inflateReset(&png_ptr->zstream); - - png_ptr->mode |= PNG_AFTER_IDAT; -} - -void /* PRIVATE */ -png_read_start_row(png_structp png_ptr) -{ -#ifdef PNG_USE_LOCAL_ARRAYS - /* arrays to facilitate easy interlacing - use pass (0 - 6) as index */ - - /* start of interlace block */ - PNG_CONST int png_pass_start[7] = {0, 4, 0, 2, 0, 1, 0}; - - /* offset to next interlace block */ - PNG_CONST int png_pass_inc[7] = {8, 8, 4, 4, 2, 2, 1}; - - /* start of interlace block in the y direction */ - PNG_CONST int png_pass_ystart[7] = {0, 0, 4, 0, 2, 0, 1}; - - /* offset to next interlace block in the y direction */ - PNG_CONST int png_pass_yinc[7] = {8, 8, 8, 4, 4, 2, 2}; -#endif - - int max_pixel_depth; - png_uint_32 row_bytes; - - png_debug(1, "in png_read_start_row\n"); - png_ptr->zstream.avail_in = 0; - png_init_read_transformations(png_ptr); - if (png_ptr->interlaced) - { - if (!(png_ptr->transformations & PNG_INTERLACE)) - png_ptr->num_rows = (png_ptr->height + png_pass_yinc[0] - 1 - - png_pass_ystart[0]) / png_pass_yinc[0]; - else - png_ptr->num_rows = png_ptr->height; - - png_ptr->iwidth = (png_ptr->width + - png_pass_inc[png_ptr->pass] - 1 - - png_pass_start[png_ptr->pass]) / - png_pass_inc[png_ptr->pass]; - - row_bytes = PNG_ROWBYTES(png_ptr->pixel_depth,png_ptr->iwidth) + 1; - - png_ptr->irowbytes = (png_size_t)row_bytes; - if((png_uint_32)png_ptr->irowbytes != row_bytes) - png_error(png_ptr, "Rowbytes overflow in png_read_start_row"); - } - else - { - png_ptr->num_rows = png_ptr->height; - png_ptr->iwidth = png_ptr->width; - png_ptr->irowbytes = png_ptr->rowbytes + 1; - } - max_pixel_depth = png_ptr->pixel_depth; - -#if defined(PNG_READ_PACK_SUPPORTED) - if ((png_ptr->transformations & PNG_PACK) && png_ptr->bit_depth < 8) - max_pixel_depth = 8; -#endif - -#if defined(PNG_READ_EXPAND_SUPPORTED) - if (png_ptr->transformations & PNG_EXPAND) - { - if (png_ptr->color_type == PNG_COLOR_TYPE_PALETTE) - { - if (png_ptr->num_trans) - max_pixel_depth = 32; - else - max_pixel_depth = 24; - } - else if (png_ptr->color_type == PNG_COLOR_TYPE_GRAY) - { - if (max_pixel_depth < 8) - max_pixel_depth = 8; - if (png_ptr->num_trans) - max_pixel_depth *= 2; - } - else if (png_ptr->color_type == PNG_COLOR_TYPE_RGB) - { - if (png_ptr->num_trans) - { - max_pixel_depth *= 4; - max_pixel_depth /= 3; - } - } - } -#endif - -#if defined(PNG_READ_FILLER_SUPPORTED) - if (png_ptr->transformations & (PNG_FILLER)) - { - if (png_ptr->color_type == PNG_COLOR_TYPE_PALETTE) - max_pixel_depth = 32; - else if (png_ptr->color_type == PNG_COLOR_TYPE_GRAY) - { - if (max_pixel_depth <= 8) - max_pixel_depth = 16; - else - max_pixel_depth = 32; - } - else if (png_ptr->color_type == PNG_COLOR_TYPE_RGB) - { - if (max_pixel_depth <= 32) - max_pixel_depth = 32; - else - max_pixel_depth = 64; - } - } -#endif - -#if defined(PNG_READ_GRAY_TO_RGB_SUPPORTED) - if (png_ptr->transformations & PNG_GRAY_TO_RGB) - { - if ( -#if defined(PNG_READ_EXPAND_SUPPORTED) - (png_ptr->num_trans && (png_ptr->transformations & PNG_EXPAND)) || -#endif -#if defined(PNG_READ_FILLER_SUPPORTED) - (png_ptr->transformations & (PNG_FILLER)) || -#endif - png_ptr->color_type == PNG_COLOR_TYPE_GRAY_ALPHA) - { - if (max_pixel_depth <= 16) - max_pixel_depth = 32; - else - max_pixel_depth = 64; - } - else - { - if (max_pixel_depth <= 8) - { - if (png_ptr->color_type == PNG_COLOR_TYPE_RGB_ALPHA) - max_pixel_depth = 32; - else - max_pixel_depth = 24; - } - else if (png_ptr->color_type == PNG_COLOR_TYPE_RGB_ALPHA) - max_pixel_depth = 64; - else - max_pixel_depth = 48; - } - } -#endif - -#if defined(PNG_READ_USER_TRANSFORM_SUPPORTED) && \ -defined(PNG_USER_TRANSFORM_PTR_SUPPORTED) - if(png_ptr->transformations & PNG_USER_TRANSFORM) - { - int user_pixel_depth=png_ptr->user_transform_depth* - png_ptr->user_transform_channels; - if(user_pixel_depth > max_pixel_depth) - max_pixel_depth=user_pixel_depth; - } -#endif - - /* align the width on the next larger 8 pixels. Mainly used - for interlacing */ - row_bytes = ((png_ptr->width + 7) & ~((png_uint_32)7)); - /* calculate the maximum bytes needed, adding a byte and a pixel - for safety's sake */ - row_bytes = PNG_ROWBYTES(max_pixel_depth,row_bytes) + - 1 + ((max_pixel_depth + 7) >> 3); -#ifdef PNG_MAX_MALLOC_64K - if (row_bytes > (png_uint_32)65536L) - png_error(png_ptr, "This image requires a row greater than 64KB"); -#endif - png_ptr->big_row_buf = (png_bytep)png_malloc(png_ptr, row_bytes+64); - png_ptr->row_buf = png_ptr->big_row_buf+32; - -#ifdef PNG_MAX_MALLOC_64K - if ((png_uint_32)png_ptr->rowbytes + 1 > (png_uint_32)65536L) - png_error(png_ptr, "This image requires a row greater than 64KB"); -#endif - if ((png_uint_32)png_ptr->rowbytes > (png_uint_32)(PNG_SIZE_MAX - 1)) - png_error(png_ptr, "Row has too many bytes to allocate in memory."); - png_ptr->prev_row = (png_bytep)png_malloc(png_ptr, (png_uint_32)( - png_ptr->rowbytes + 1)); - - png_memset_check(png_ptr, png_ptr->prev_row, 0, png_ptr->rowbytes + 1); - - png_debug1(3, "width = %lu,\n", png_ptr->width); - png_debug1(3, "height = %lu,\n", png_ptr->height); - png_debug1(3, "iwidth = %lu,\n", png_ptr->iwidth); - png_debug1(3, "num_rows = %lu\n", png_ptr->num_rows); - png_debug1(3, "rowbytes = %lu,\n", png_ptr->rowbytes); - png_debug1(3, "irowbytes = %lu,\n", png_ptr->irowbytes); - - png_ptr->flags |= PNG_FLAG_ROW_INIT; -} -#endif /* PNG_READ_SUPPORTED */ diff --git a/src/3rdParty/CxImage/png/pngset.c b/src/3rdParty/CxImage/png/pngset.c deleted file mode 100644 index f8f9b7e3b3..0000000000 --- a/src/3rdParty/CxImage/png/pngset.c +++ /dev/null @@ -1,1250 +0,0 @@ - -/* pngset.c - storage of image information into info struct - * - * Last changed in libpng 1.2.24 [December 14, 2007] - * For conditions of distribution and use, see copyright notice in png.h - * Copyright (c) 1998-2007 Glenn Randers-Pehrson - * (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger) - * (Version 0.88 Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.) - * - * The functions here are used during reads to store data from the file - * into the info struct, and during writes to store application data - * into the info struct for writing into the file. This abstracts the - * info struct and allows us to change the structure in the future. - */ - -#define PNG_INTERNAL -#include "png.h" - -#if defined(PNG_READ_SUPPORTED) || defined(PNG_WRITE_SUPPORTED) - -#if defined(PNG_bKGD_SUPPORTED) -void PNGAPI -png_set_bKGD(png_structp png_ptr, png_infop info_ptr, png_color_16p background) -{ - png_debug1(1, "in %s storage function\n", "bKGD"); - if (png_ptr == NULL || info_ptr == NULL) - return; - - png_memcpy(&(info_ptr->background), background, png_sizeof(png_color_16)); - info_ptr->valid |= PNG_INFO_bKGD; -} -#endif - -#if defined(PNG_cHRM_SUPPORTED) -#ifdef PNG_FLOATING_POINT_SUPPORTED -void PNGAPI -png_set_cHRM(png_structp png_ptr, png_infop info_ptr, - double white_x, double white_y, double red_x, double red_y, - double green_x, double green_y, double blue_x, double blue_y) -{ - png_debug1(1, "in %s storage function\n", "cHRM"); - if (png_ptr == NULL || info_ptr == NULL) - return; - if (!(white_x || white_y || red_x || red_y || green_x || green_y || - blue_x || blue_y)) - { - png_warning(png_ptr, - "Ignoring attempt to set all-zero chromaticity values"); - return; - } - if (white_x < 0.0 || white_y < 0.0 || - red_x < 0.0 || red_y < 0.0 || - green_x < 0.0 || green_y < 0.0 || - blue_x < 0.0 || blue_y < 0.0) - { - png_warning(png_ptr, - "Ignoring attempt to set negative chromaticity value"); - return; - } - if (white_x > 21474.83 || white_y > 21474.83 || - red_x > 21474.83 || red_y > 21474.83 || - green_x > 21474.83 || green_y > 21474.83 || - blue_x > 21474.83 || blue_y > 21474.83) - { - png_warning(png_ptr, - "Ignoring attempt to set chromaticity value exceeding 21474.83"); - return; - } - - info_ptr->x_white = (float)white_x; - info_ptr->y_white = (float)white_y; - info_ptr->x_red = (float)red_x; - info_ptr->y_red = (float)red_y; - info_ptr->x_green = (float)green_x; - info_ptr->y_green = (float)green_y; - info_ptr->x_blue = (float)blue_x; - info_ptr->y_blue = (float)blue_y; -#ifdef PNG_FIXED_POINT_SUPPORTED - info_ptr->int_x_white = (png_fixed_point)(white_x*100000.+0.5); - info_ptr->int_y_white = (png_fixed_point)(white_y*100000.+0.5); - info_ptr->int_x_red = (png_fixed_point)( red_x*100000.+0.5); - info_ptr->int_y_red = (png_fixed_point)( red_y*100000.+0.5); - info_ptr->int_x_green = (png_fixed_point)(green_x*100000.+0.5); - info_ptr->int_y_green = (png_fixed_point)(green_y*100000.+0.5); - info_ptr->int_x_blue = (png_fixed_point)( blue_x*100000.+0.5); - info_ptr->int_y_blue = (png_fixed_point)( blue_y*100000.+0.5); -#endif - info_ptr->valid |= PNG_INFO_cHRM; -} -#endif -#ifdef PNG_FIXED_POINT_SUPPORTED -void PNGAPI -png_set_cHRM_fixed(png_structp png_ptr, png_infop info_ptr, - png_fixed_point white_x, png_fixed_point white_y, png_fixed_point red_x, - png_fixed_point red_y, png_fixed_point green_x, png_fixed_point green_y, - png_fixed_point blue_x, png_fixed_point blue_y) -{ - png_debug1(1, "in %s storage function\n", "cHRM"); - if (png_ptr == NULL || info_ptr == NULL) - return; - - if (!(white_x || white_y || red_x || red_y || green_x || green_y || - blue_x || blue_y)) - { - png_warning(png_ptr, - "Ignoring attempt to set all-zero chromaticity values"); - return; - } - if (white_x < 0 || white_y < 0 || - red_x < 0 || red_y < 0 || - green_x < 0 || green_y < 0 || - blue_x < 0 || blue_y < 0) - { - png_warning(png_ptr, - "Ignoring attempt to set negative chromaticity value"); - return; - } - if (white_x > (png_fixed_point) PNG_UINT_31_MAX || - white_y > (png_fixed_point) PNG_UINT_31_MAX || - red_x > (png_fixed_point) PNG_UINT_31_MAX || - red_y > (png_fixed_point) PNG_UINT_31_MAX || - green_x > (png_fixed_point) PNG_UINT_31_MAX || - green_y > (png_fixed_point) PNG_UINT_31_MAX || - blue_x > (png_fixed_point) PNG_UINT_31_MAX || - blue_y > (png_fixed_point) PNG_UINT_31_MAX ) - { - png_warning(png_ptr, - "Ignoring attempt to set chromaticity value exceeding 21474.83"); - return; - } - info_ptr->int_x_white = white_x; - info_ptr->int_y_white = white_y; - info_ptr->int_x_red = red_x; - info_ptr->int_y_red = red_y; - info_ptr->int_x_green = green_x; - info_ptr->int_y_green = green_y; - info_ptr->int_x_blue = blue_x; - info_ptr->int_y_blue = blue_y; -#ifdef PNG_FLOATING_POINT_SUPPORTED - info_ptr->x_white = (float)(white_x/100000.); - info_ptr->y_white = (float)(white_y/100000.); - info_ptr->x_red = (float)( red_x/100000.); - info_ptr->y_red = (float)( red_y/100000.); - info_ptr->x_green = (float)(green_x/100000.); - info_ptr->y_green = (float)(green_y/100000.); - info_ptr->x_blue = (float)( blue_x/100000.); - info_ptr->y_blue = (float)( blue_y/100000.); -#endif - info_ptr->valid |= PNG_INFO_cHRM; -} -#endif -#endif - -#if defined(PNG_gAMA_SUPPORTED) -#ifdef PNG_FLOATING_POINT_SUPPORTED -void PNGAPI -png_set_gAMA(png_structp png_ptr, png_infop info_ptr, double file_gamma) -{ - double gamma; - png_debug1(1, "in %s storage function\n", "gAMA"); - if (png_ptr == NULL || info_ptr == NULL) - return; - - /* Check for overflow */ - if (file_gamma > 21474.83) - { - png_warning(png_ptr, "Limiting gamma to 21474.83"); - gamma=21474.83; - } - else - gamma=file_gamma; - info_ptr->gamma = (float)gamma; -#ifdef PNG_FIXED_POINT_SUPPORTED - info_ptr->int_gamma = (int)(gamma*100000.+.5); -#endif - info_ptr->valid |= PNG_INFO_gAMA; - if(gamma == 0.0) - png_warning(png_ptr, "Setting gamma=0"); -} -#endif -void PNGAPI -png_set_gAMA_fixed(png_structp png_ptr, png_infop info_ptr, png_fixed_point - int_gamma) -{ - png_fixed_point gamma; - - png_debug1(1, "in %s storage function\n", "gAMA"); - if (png_ptr == NULL || info_ptr == NULL) - return; - - if (int_gamma > (png_fixed_point) PNG_UINT_31_MAX) - { - png_warning(png_ptr, "Limiting gamma to 21474.83"); - gamma=PNG_UINT_31_MAX; - } - else - { - if (int_gamma < 0) - { - png_warning(png_ptr, "Setting negative gamma to zero"); - gamma=0; - } - else - gamma=int_gamma; - } -#ifdef PNG_FLOATING_POINT_SUPPORTED - info_ptr->gamma = (float)(gamma/100000.); -#endif -#ifdef PNG_FIXED_POINT_SUPPORTED - info_ptr->int_gamma = gamma; -#endif - info_ptr->valid |= PNG_INFO_gAMA; - if(gamma == 0) - png_warning(png_ptr, "Setting gamma=0"); -} -#endif - -#if defined(PNG_hIST_SUPPORTED) -void PNGAPI -png_set_hIST(png_structp png_ptr, png_infop info_ptr, png_uint_16p hist) -{ - int i; - - png_debug1(1, "in %s storage function\n", "hIST"); - if (png_ptr == NULL || info_ptr == NULL) - return; - if (info_ptr->num_palette == 0 || info_ptr->num_palette - > PNG_MAX_PALETTE_LENGTH) - { - png_warning(png_ptr, - "Invalid palette size, hIST allocation skipped."); - return; - } - -#ifdef PNG_FREE_ME_SUPPORTED - png_free_data(png_ptr, info_ptr, PNG_FREE_HIST, 0); -#endif - /* Changed from info->num_palette to PNG_MAX_PALETTE_LENGTH in version - 1.2.1 */ - png_ptr->hist = (png_uint_16p)png_malloc_warn(png_ptr, - (png_uint_32)(PNG_MAX_PALETTE_LENGTH * png_sizeof (png_uint_16))); - if (png_ptr->hist == NULL) - { - png_warning(png_ptr, "Insufficient memory for hIST chunk data."); - return; - } - - for (i = 0; i < info_ptr->num_palette; i++) - png_ptr->hist[i] = hist[i]; - info_ptr->hist = png_ptr->hist; - info_ptr->valid |= PNG_INFO_hIST; - -#ifdef PNG_FREE_ME_SUPPORTED - info_ptr->free_me |= PNG_FREE_HIST; -#else - png_ptr->flags |= PNG_FLAG_FREE_HIST; -#endif -} -#endif - -void PNGAPI -png_set_IHDR(png_structp png_ptr, png_infop info_ptr, - png_uint_32 width, png_uint_32 height, int bit_depth, - int color_type, int interlace_type, int compression_type, - int filter_type) -{ - png_debug1(1, "in %s storage function\n", "IHDR"); - if (png_ptr == NULL || info_ptr == NULL) - return; - - /* check for width and height valid values */ - if (width == 0 || height == 0) - png_error(png_ptr, "Image width or height is zero in IHDR"); -#ifdef PNG_SET_USER_LIMITS_SUPPORTED - if (width > png_ptr->user_width_max || height > png_ptr->user_height_max) - png_error(png_ptr, "image size exceeds user limits in IHDR"); -#else - if (width > PNG_USER_WIDTH_MAX || height > PNG_USER_HEIGHT_MAX) - png_error(png_ptr, "image size exceeds user limits in IHDR"); -#endif - if (width > PNG_UINT_31_MAX || height > PNG_UINT_31_MAX) - png_error(png_ptr, "Invalid image size in IHDR"); - if ( width > (PNG_UINT_32_MAX - >> 3) /* 8-byte RGBA pixels */ - - 64 /* bigrowbuf hack */ - - 1 /* filter byte */ - - 7*8 /* rounding of width to multiple of 8 pixels */ - - 8) /* extra max_pixel_depth pad */ - png_warning(png_ptr, "Width is too large for libpng to process pixels"); - - /* check other values */ - if (bit_depth != 1 && bit_depth != 2 && bit_depth != 4 && - bit_depth != 8 && bit_depth != 16) - png_error(png_ptr, "Invalid bit depth in IHDR"); - - if (color_type < 0 || color_type == 1 || - color_type == 5 || color_type > 6) - png_error(png_ptr, "Invalid color type in IHDR"); - - if (((color_type == PNG_COLOR_TYPE_PALETTE) && bit_depth > 8) || - ((color_type == PNG_COLOR_TYPE_RGB || - color_type == PNG_COLOR_TYPE_GRAY_ALPHA || - color_type == PNG_COLOR_TYPE_RGB_ALPHA) && bit_depth < 8)) - png_error(png_ptr, "Invalid color type/bit depth combination in IHDR"); - - if (interlace_type >= PNG_INTERLACE_LAST) - png_error(png_ptr, "Unknown interlace method in IHDR"); - - if (compression_type != PNG_COMPRESSION_TYPE_BASE) - png_error(png_ptr, "Unknown compression method in IHDR"); - -#if defined(PNG_MNG_FEATURES_SUPPORTED) - /* Accept filter_method 64 (intrapixel differencing) only if - * 1. Libpng was compiled with PNG_MNG_FEATURES_SUPPORTED and - * 2. Libpng did not read a PNG signature (this filter_method is only - * used in PNG datastreams that are embedded in MNG datastreams) and - * 3. The application called png_permit_mng_features with a mask that - * included PNG_FLAG_MNG_FILTER_64 and - * 4. The filter_method is 64 and - * 5. The color_type is RGB or RGBA - */ - if((png_ptr->mode&PNG_HAVE_PNG_SIGNATURE)&&png_ptr->mng_features_permitted) - png_warning(png_ptr,"MNG features are not allowed in a PNG datastream"); - if(filter_type != PNG_FILTER_TYPE_BASE) - { - if(!((png_ptr->mng_features_permitted & PNG_FLAG_MNG_FILTER_64) && - (filter_type == PNG_INTRAPIXEL_DIFFERENCING) && - ((png_ptr->mode&PNG_HAVE_PNG_SIGNATURE) == 0) && - (color_type == PNG_COLOR_TYPE_RGB || - color_type == PNG_COLOR_TYPE_RGB_ALPHA))) - png_error(png_ptr, "Unknown filter method in IHDR"); - if(png_ptr->mode&PNG_HAVE_PNG_SIGNATURE) - png_warning(png_ptr, "Invalid filter method in IHDR"); - } -#else - if(filter_type != PNG_FILTER_TYPE_BASE) - png_error(png_ptr, "Unknown filter method in IHDR"); -#endif - - info_ptr->width = width; - info_ptr->height = height; - info_ptr->bit_depth = (png_byte)bit_depth; - info_ptr->color_type =(png_byte) color_type; - info_ptr->compression_type = (png_byte)compression_type; - info_ptr->filter_type = (png_byte)filter_type; - info_ptr->interlace_type = (png_byte)interlace_type; - if (info_ptr->color_type == PNG_COLOR_TYPE_PALETTE) - info_ptr->channels = 1; - else if (info_ptr->color_type & PNG_COLOR_MASK_COLOR) - info_ptr->channels = 3; - else - info_ptr->channels = 1; - if (info_ptr->color_type & PNG_COLOR_MASK_ALPHA) - info_ptr->channels++; - info_ptr->pixel_depth = (png_byte)(info_ptr->channels * info_ptr->bit_depth); - - /* check for potential overflow */ - if (width > (PNG_UINT_32_MAX - >> 3) /* 8-byte RGBA pixels */ - - 64 /* bigrowbuf hack */ - - 1 /* filter byte */ - - 7*8 /* rounding of width to multiple of 8 pixels */ - - 8) /* extra max_pixel_depth pad */ - info_ptr->rowbytes = (png_size_t)0; - else - info_ptr->rowbytes = PNG_ROWBYTES(info_ptr->pixel_depth,width); -} - -#if defined(PNG_oFFs_SUPPORTED) -void PNGAPI -png_set_oFFs(png_structp png_ptr, png_infop info_ptr, - png_int_32 offset_x, png_int_32 offset_y, int unit_type) -{ - png_debug1(1, "in %s storage function\n", "oFFs"); - if (png_ptr == NULL || info_ptr == NULL) - return; - - info_ptr->x_offset = offset_x; - info_ptr->y_offset = offset_y; - info_ptr->offset_unit_type = (png_byte)unit_type; - info_ptr->valid |= PNG_INFO_oFFs; -} -#endif - -#if defined(PNG_pCAL_SUPPORTED) -void PNGAPI -png_set_pCAL(png_structp png_ptr, png_infop info_ptr, - png_charp purpose, png_int_32 X0, png_int_32 X1, int type, int nparams, - png_charp units, png_charpp params) -{ - png_uint_32 length; - int i; - - png_debug1(1, "in %s storage function\n", "pCAL"); - if (png_ptr == NULL || info_ptr == NULL) - return; - - length = png_strlen(purpose) + 1; - png_debug1(3, "allocating purpose for info (%lu bytes)\n", length); - info_ptr->pcal_purpose = (png_charp)png_malloc_warn(png_ptr, length); - if (info_ptr->pcal_purpose == NULL) - { - png_warning(png_ptr, "Insufficient memory for pCAL purpose."); - return; - } - png_memcpy(info_ptr->pcal_purpose, purpose, (png_size_t)length); - - png_debug(3, "storing X0, X1, type, and nparams in info\n"); - info_ptr->pcal_X0 = X0; - info_ptr->pcal_X1 = X1; - info_ptr->pcal_type = (png_byte)type; - info_ptr->pcal_nparams = (png_byte)nparams; - - length = png_strlen(units) + 1; - png_debug1(3, "allocating units for info (%lu bytes)\n", length); - info_ptr->pcal_units = (png_charp)png_malloc_warn(png_ptr, length); - if (info_ptr->pcal_units == NULL) - { - png_warning(png_ptr, "Insufficient memory for pCAL units."); - return; - } - png_memcpy(info_ptr->pcal_units, units, (png_size_t)length); - - info_ptr->pcal_params = (png_charpp)png_malloc_warn(png_ptr, - (png_uint_32)((nparams + 1) * png_sizeof(png_charp))); - if (info_ptr->pcal_params == NULL) - { - png_warning(png_ptr, "Insufficient memory for pCAL params."); - return; - } - - info_ptr->pcal_params[nparams] = NULL; - - for (i = 0; i < nparams; i++) - { - length = png_strlen(params[i]) + 1; - png_debug2(3, "allocating parameter %d for info (%lu bytes)\n", i, length); - info_ptr->pcal_params[i] = (png_charp)png_malloc_warn(png_ptr, length); - if (info_ptr->pcal_params[i] == NULL) - { - png_warning(png_ptr, "Insufficient memory for pCAL parameter."); - return; - } - png_memcpy(info_ptr->pcal_params[i], params[i], (png_size_t)length); - } - - info_ptr->valid |= PNG_INFO_pCAL; -#ifdef PNG_FREE_ME_SUPPORTED - info_ptr->free_me |= PNG_FREE_PCAL; -#endif -} -#endif - -#if defined(PNG_READ_sCAL_SUPPORTED) || defined(PNG_WRITE_sCAL_SUPPORTED) -#ifdef PNG_FLOATING_POINT_SUPPORTED -void PNGAPI -png_set_sCAL(png_structp png_ptr, png_infop info_ptr, - int unit, double width, double height) -{ - png_debug1(1, "in %s storage function\n", "sCAL"); - if (png_ptr == NULL || info_ptr == NULL) - return; - - info_ptr->scal_unit = (png_byte)unit; - info_ptr->scal_pixel_width = width; - info_ptr->scal_pixel_height = height; - - info_ptr->valid |= PNG_INFO_sCAL; -} -#else -#ifdef PNG_FIXED_POINT_SUPPORTED -void PNGAPI -png_set_sCAL_s(png_structp png_ptr, png_infop info_ptr, - int unit, png_charp swidth, png_charp sheight) -{ - png_uint_32 length; - - png_debug1(1, "in %s storage function\n", "sCAL"); - if (png_ptr == NULL || info_ptr == NULL) - return; - - info_ptr->scal_unit = (png_byte)unit; - - length = png_strlen(swidth) + 1; - png_debug1(3, "allocating unit for info (%d bytes)\n", length); - info_ptr->scal_s_width = (png_charp)png_malloc_warn(png_ptr, length); - if (info_ptr->scal_s_width == NULL) - { - png_warning(png_ptr, - "Memory allocation failed while processing sCAL."); - } - png_memcpy(info_ptr->scal_s_width, swidth, (png_size_t)length); - - length = png_strlen(sheight) + 1; - png_debug1(3, "allocating unit for info (%d bytes)\n", length); - info_ptr->scal_s_height = (png_charp)png_malloc_warn(png_ptr, length); - if (info_ptr->scal_s_height == NULL) - { - png_free (png_ptr, info_ptr->scal_s_width); - png_warning(png_ptr, - "Memory allocation failed while processing sCAL."); - } - png_memcpy(info_ptr->scal_s_height, sheight, (png_size_t)length); - - info_ptr->valid |= PNG_INFO_sCAL; -#ifdef PNG_FREE_ME_SUPPORTED - info_ptr->free_me |= PNG_FREE_SCAL; -#endif -} -#endif -#endif -#endif - -#if defined(PNG_pHYs_SUPPORTED) -void PNGAPI -png_set_pHYs(png_structp png_ptr, png_infop info_ptr, - png_uint_32 res_x, png_uint_32 res_y, int unit_type) -{ - png_debug1(1, "in %s storage function\n", "pHYs"); - if (png_ptr == NULL || info_ptr == NULL) - return; - - info_ptr->x_pixels_per_unit = res_x; - info_ptr->y_pixels_per_unit = res_y; - info_ptr->phys_unit_type = (png_byte)unit_type; - info_ptr->valid |= PNG_INFO_pHYs; -} -#endif - -void PNGAPI -png_set_PLTE(png_structp png_ptr, png_infop info_ptr, - png_colorp palette, int num_palette) -{ - - png_debug1(1, "in %s storage function\n", "PLTE"); - if (png_ptr == NULL || info_ptr == NULL) - return; - - if (num_palette < 0 || num_palette > PNG_MAX_PALETTE_LENGTH) - { - if (info_ptr->color_type == PNG_COLOR_TYPE_PALETTE) - png_error(png_ptr, "Invalid palette length"); - else - { - png_warning(png_ptr, "Invalid palette length"); - return; - } - } - - /* - * It may not actually be necessary to set png_ptr->palette here; - * we do it for backward compatibility with the way the png_handle_tRNS - * function used to do the allocation. - */ -#ifdef PNG_FREE_ME_SUPPORTED - png_free_data(png_ptr, info_ptr, PNG_FREE_PLTE, 0); -#endif - - /* Changed in libpng-1.2.1 to allocate PNG_MAX_PALETTE_LENGTH instead - of num_palette entries, - in case of an invalid PNG file that has too-large sample values. */ - png_ptr->palette = (png_colorp)png_malloc(png_ptr, - PNG_MAX_PALETTE_LENGTH * png_sizeof(png_color)); - png_memset(png_ptr->palette, 0, PNG_MAX_PALETTE_LENGTH * - png_sizeof(png_color)); - png_memcpy(png_ptr->palette, palette, num_palette * png_sizeof (png_color)); - info_ptr->palette = png_ptr->palette; - info_ptr->num_palette = png_ptr->num_palette = (png_uint_16)num_palette; - -#ifdef PNG_FREE_ME_SUPPORTED - info_ptr->free_me |= PNG_FREE_PLTE; -#else - png_ptr->flags |= PNG_FLAG_FREE_PLTE; -#endif - - info_ptr->valid |= PNG_INFO_PLTE; -} - -#if defined(PNG_sBIT_SUPPORTED) -void PNGAPI -png_set_sBIT(png_structp png_ptr, png_infop info_ptr, - png_color_8p sig_bit) -{ - png_debug1(1, "in %s storage function\n", "sBIT"); - if (png_ptr == NULL || info_ptr == NULL) - return; - - png_memcpy(&(info_ptr->sig_bit), sig_bit, png_sizeof (png_color_8)); - info_ptr->valid |= PNG_INFO_sBIT; -} -#endif - -#if defined(PNG_sRGB_SUPPORTED) -void PNGAPI -png_set_sRGB(png_structp png_ptr, png_infop info_ptr, int intent) -{ - png_debug1(1, "in %s storage function\n", "sRGB"); - if (png_ptr == NULL || info_ptr == NULL) - return; - - info_ptr->srgb_intent = (png_byte)intent; - info_ptr->valid |= PNG_INFO_sRGB; -} - -void PNGAPI -png_set_sRGB_gAMA_and_cHRM(png_structp png_ptr, png_infop info_ptr, - int intent) -{ -#if defined(PNG_gAMA_SUPPORTED) -#ifdef PNG_FLOATING_POINT_SUPPORTED - float file_gamma; -#endif -#ifdef PNG_FIXED_POINT_SUPPORTED - png_fixed_point int_file_gamma; -#endif -#endif -#if defined(PNG_cHRM_SUPPORTED) -#ifdef PNG_FLOATING_POINT_SUPPORTED - float white_x, white_y, red_x, red_y, green_x, green_y, blue_x, blue_y; -#endif -#ifdef PNG_FIXED_POINT_SUPPORTED - png_fixed_point int_white_x, int_white_y, int_red_x, int_red_y, int_green_x, - int_green_y, int_blue_x, int_blue_y; -#endif -#endif - png_debug1(1, "in %s storage function\n", "sRGB_gAMA_and_cHRM"); - if (png_ptr == NULL || info_ptr == NULL) - return; - - png_set_sRGB(png_ptr, info_ptr, intent); - -#if defined(PNG_gAMA_SUPPORTED) -#ifdef PNG_FLOATING_POINT_SUPPORTED - file_gamma = (float).45455; - png_set_gAMA(png_ptr, info_ptr, file_gamma); -#endif -#ifdef PNG_FIXED_POINT_SUPPORTED - int_file_gamma = 45455L; - png_set_gAMA_fixed(png_ptr, info_ptr, int_file_gamma); -#endif -#endif - -#if defined(PNG_cHRM_SUPPORTED) -#ifdef PNG_FIXED_POINT_SUPPORTED - int_white_x = 31270L; - int_white_y = 32900L; - int_red_x = 64000L; - int_red_y = 33000L; - int_green_x = 30000L; - int_green_y = 60000L; - int_blue_x = 15000L; - int_blue_y = 6000L; - - png_set_cHRM_fixed(png_ptr, info_ptr, - int_white_x, int_white_y, int_red_x, int_red_y, int_green_x, int_green_y, - int_blue_x, int_blue_y); -#endif -#ifdef PNG_FLOATING_POINT_SUPPORTED - white_x = (float).3127; - white_y = (float).3290; - red_x = (float).64; - red_y = (float).33; - green_x = (float).30; - green_y = (float).60; - blue_x = (float).15; - blue_y = (float).06; - - png_set_cHRM(png_ptr, info_ptr, - white_x, white_y, red_x, red_y, green_x, green_y, blue_x, blue_y); -#endif -#endif -} -#endif - - -#if defined(PNG_iCCP_SUPPORTED) -void PNGAPI -png_set_iCCP(png_structp png_ptr, png_infop info_ptr, - png_charp name, int compression_type, - png_charp profile, png_uint_32 proflen) -{ - png_charp new_iccp_name; - png_charp new_iccp_profile; - png_uint_32 length; - - png_debug1(1, "in %s storage function\n", "iCCP"); - if (png_ptr == NULL || info_ptr == NULL || name == NULL || profile == NULL) - return; - - length = png_strlen(name)+1; - new_iccp_name = (png_charp)png_malloc_warn(png_ptr, length); - if (new_iccp_name == NULL) - { - png_warning(png_ptr, "Insufficient memory to process iCCP chunk."); - return; - } - png_memcpy(new_iccp_name, name, length); - new_iccp_profile = (png_charp)png_malloc_warn(png_ptr, proflen); - if (new_iccp_profile == NULL) - { - png_free (png_ptr, new_iccp_name); - png_warning(png_ptr, "Insufficient memory to process iCCP profile."); - return; - } - png_memcpy(new_iccp_profile, profile, (png_size_t)proflen); - - png_free_data(png_ptr, info_ptr, PNG_FREE_ICCP, 0); - - info_ptr->iccp_proflen = proflen; - info_ptr->iccp_name = new_iccp_name; - info_ptr->iccp_profile = new_iccp_profile; - /* Compression is always zero but is here so the API and info structure - * does not have to change if we introduce multiple compression types */ - info_ptr->iccp_compression = (png_byte)compression_type; -#ifdef PNG_FREE_ME_SUPPORTED - info_ptr->free_me |= PNG_FREE_ICCP; -#endif - info_ptr->valid |= PNG_INFO_iCCP; -} -#endif - -#if defined(PNG_TEXT_SUPPORTED) -void PNGAPI -png_set_text(png_structp png_ptr, png_infop info_ptr, png_textp text_ptr, - int num_text) -{ - int ret; - ret=png_set_text_2(png_ptr, info_ptr, text_ptr, num_text); - if (ret) - png_error(png_ptr, "Insufficient memory to store text"); -} - -int /* PRIVATE */ -png_set_text_2(png_structp png_ptr, png_infop info_ptr, png_textp text_ptr, - int num_text) -{ - int i; - - png_debug1(1, "in %s storage function\n", (png_ptr->chunk_name[0] == '\0' ? - "text" : (png_const_charp)png_ptr->chunk_name)); - - if (png_ptr == NULL || info_ptr == NULL || num_text == 0) - return(0); - - /* Make sure we have enough space in the "text" array in info_struct - * to hold all of the incoming text_ptr objects. - */ - if (info_ptr->num_text + num_text > info_ptr->max_text) - { - if (info_ptr->text != NULL) - { - png_textp old_text; - int old_max; - - old_max = info_ptr->max_text; - info_ptr->max_text = info_ptr->num_text + num_text + 8; - old_text = info_ptr->text; - info_ptr->text = (png_textp)png_malloc_warn(png_ptr, - (png_uint_32)(info_ptr->max_text * png_sizeof (png_text))); - if (info_ptr->text == NULL) - { - png_free(png_ptr, old_text); - return(1); - } - png_memcpy(info_ptr->text, old_text, (png_size_t)(old_max * - png_sizeof(png_text))); - png_free(png_ptr, old_text); - } - else - { - info_ptr->max_text = num_text + 8; - info_ptr->num_text = 0; - info_ptr->text = (png_textp)png_malloc_warn(png_ptr, - (png_uint_32)(info_ptr->max_text * png_sizeof (png_text))); - if (info_ptr->text == NULL) - return(1); -#ifdef PNG_FREE_ME_SUPPORTED - info_ptr->free_me |= PNG_FREE_TEXT; -#endif - } - png_debug1(3, "allocated %d entries for info_ptr->text\n", - info_ptr->max_text); - } - for (i = 0; i < num_text; i++) - { - png_size_t text_length,key_len; - png_size_t lang_len,lang_key_len; - png_textp textp = &(info_ptr->text[info_ptr->num_text]); - - if (text_ptr[i].key == NULL) - continue; - - key_len = png_strlen(text_ptr[i].key); - - if(text_ptr[i].compression <= 0) - { - lang_len = 0; - lang_key_len = 0; - } - else -#ifdef PNG_iTXt_SUPPORTED - { - /* set iTXt data */ - if (text_ptr[i].lang != NULL) - lang_len = png_strlen(text_ptr[i].lang); - else - lang_len = 0; - if (text_ptr[i].lang_key != NULL) - lang_key_len = png_strlen(text_ptr[i].lang_key); - else - lang_key_len = 0; - } -#else - { - png_warning(png_ptr, "iTXt chunk not supported."); - continue; - } -#endif - - if (text_ptr[i].text == NULL || text_ptr[i].text[0] == '\0') - { - text_length = 0; -#ifdef PNG_iTXt_SUPPORTED - if(text_ptr[i].compression > 0) - textp->compression = PNG_ITXT_COMPRESSION_NONE; - else -#endif - textp->compression = PNG_TEXT_COMPRESSION_NONE; - } - else - { - text_length = png_strlen(text_ptr[i].text); - textp->compression = text_ptr[i].compression; - } - - textp->key = (png_charp)png_malloc_warn(png_ptr, - (png_uint_32)(key_len + text_length + lang_len + lang_key_len + 4)); - if (textp->key == NULL) - return(1); - png_debug2(2, "Allocated %lu bytes at %x in png_set_text\n", - (png_uint_32)(key_len + lang_len + lang_key_len + text_length + 4), - (int)textp->key); - - png_memcpy(textp->key, text_ptr[i].key, - (png_size_t)(key_len)); - *(textp->key+key_len) = '\0'; -#ifdef PNG_iTXt_SUPPORTED - if (text_ptr[i].compression > 0) - { - textp->lang=textp->key + key_len + 1; - png_memcpy(textp->lang, text_ptr[i].lang, lang_len); - *(textp->lang+lang_len) = '\0'; - textp->lang_key=textp->lang + lang_len + 1; - png_memcpy(textp->lang_key, text_ptr[i].lang_key, lang_key_len); - *(textp->lang_key+lang_key_len) = '\0'; - textp->text=textp->lang_key + lang_key_len + 1; - } - else -#endif - { -#ifdef PNG_iTXt_SUPPORTED - textp->lang=NULL; - textp->lang_key=NULL; -#endif - textp->text=textp->key + key_len + 1; - } - if(text_length) - png_memcpy(textp->text, text_ptr[i].text, - (png_size_t)(text_length)); - *(textp->text+text_length) = '\0'; - -#ifdef PNG_iTXt_SUPPORTED - if(textp->compression > 0) - { - textp->text_length = 0; - textp->itxt_length = text_length; - } - else -#endif - { - textp->text_length = text_length; -#ifdef PNG_iTXt_SUPPORTED - textp->itxt_length = 0; -#endif - } - info_ptr->num_text++; - png_debug1(3, "transferred text chunk %d\n", info_ptr->num_text); - } - return(0); -} -#endif - -#if defined(PNG_tIME_SUPPORTED) -void PNGAPI -png_set_tIME(png_structp png_ptr, png_infop info_ptr, png_timep mod_time) -{ - png_debug1(1, "in %s storage function\n", "tIME"); - if (png_ptr == NULL || info_ptr == NULL || - (png_ptr->mode & PNG_WROTE_tIME)) - return; - - png_memcpy(&(info_ptr->mod_time), mod_time, png_sizeof (png_time)); - info_ptr->valid |= PNG_INFO_tIME; -} -#endif - -#if defined(PNG_tRNS_SUPPORTED) -void PNGAPI -png_set_tRNS(png_structp png_ptr, png_infop info_ptr, - png_bytep trans, int num_trans, png_color_16p trans_values) -{ - png_debug1(1, "in %s storage function\n", "tRNS"); - if (png_ptr == NULL || info_ptr == NULL) - return; - - if (trans != NULL) - { - /* - * It may not actually be necessary to set png_ptr->trans here; - * we do it for backward compatibility with the way the png_handle_tRNS - * function used to do the allocation. - */ -#ifdef PNG_FREE_ME_SUPPORTED - png_free_data(png_ptr, info_ptr, PNG_FREE_TRNS, 0); -#endif - /* Changed from num_trans to PNG_MAX_PALETTE_LENGTH in version 1.2.1 */ - png_ptr->trans = info_ptr->trans = (png_bytep)png_malloc(png_ptr, - (png_uint_32)PNG_MAX_PALETTE_LENGTH); - if (num_trans <= PNG_MAX_PALETTE_LENGTH) - png_memcpy(info_ptr->trans, trans, (png_size_t)num_trans); -#ifdef PNG_FREE_ME_SUPPORTED - info_ptr->free_me |= PNG_FREE_TRNS; -#else - png_ptr->flags |= PNG_FLAG_FREE_TRNS; -#endif - } - - if (trans_values != NULL) - { - png_memcpy(&(info_ptr->trans_values), trans_values, - png_sizeof(png_color_16)); - if (num_trans == 0) - num_trans = 1; - } - info_ptr->num_trans = (png_uint_16)num_trans; - info_ptr->valid |= PNG_INFO_tRNS; -} -#endif - -#if defined(PNG_sPLT_SUPPORTED) -void PNGAPI -png_set_sPLT(png_structp png_ptr, - png_infop info_ptr, png_sPLT_tp entries, int nentries) -{ - png_sPLT_tp np; - int i; - - if (png_ptr == NULL || info_ptr == NULL) - return; - - np = (png_sPLT_tp)png_malloc_warn(png_ptr, - (info_ptr->splt_palettes_num + nentries) * png_sizeof(png_sPLT_t)); - if (np == NULL) - { - png_warning(png_ptr, "No memory for sPLT palettes."); - return; - } - - png_memcpy(np, info_ptr->splt_palettes, - info_ptr->splt_palettes_num * png_sizeof(png_sPLT_t)); - png_free(png_ptr, info_ptr->splt_palettes); - info_ptr->splt_palettes=NULL; - - for (i = 0; i < nentries; i++) - { - png_sPLT_tp to = np + info_ptr->splt_palettes_num + i; - png_sPLT_tp from = entries + i; - png_uint_32 length; - - length = png_strlen(from->name) + 1; - to->name = (png_charp)png_malloc_warn(png_ptr, length); - if (to->name == NULL) - { - png_warning(png_ptr, - "Out of memory while processing sPLT chunk"); - } - png_memcpy(to->name, from->name, length); - to->entries = (png_sPLT_entryp)png_malloc_warn(png_ptr, - from->nentries * png_sizeof(png_sPLT_entry)); - if (to->entries == NULL) - { - png_warning(png_ptr, - "Out of memory while processing sPLT chunk"); - png_free(png_ptr,to->name); - to->name = NULL; - } - png_memcpy(to->entries, from->entries, - from->nentries * png_sizeof(png_sPLT_entry)); - to->nentries = from->nentries; - to->depth = from->depth; - } - - info_ptr->splt_palettes = np; - info_ptr->splt_palettes_num += nentries; - info_ptr->valid |= PNG_INFO_sPLT; -#ifdef PNG_FREE_ME_SUPPORTED - info_ptr->free_me |= PNG_FREE_SPLT; -#endif -} -#endif /* PNG_sPLT_SUPPORTED */ - -#if defined(PNG_UNKNOWN_CHUNKS_SUPPORTED) -void PNGAPI -png_set_unknown_chunks(png_structp png_ptr, - png_infop info_ptr, png_unknown_chunkp unknowns, int num_unknowns) -{ - png_unknown_chunkp np; - int i; - - if (png_ptr == NULL || info_ptr == NULL || num_unknowns == 0) - return; - - np = (png_unknown_chunkp)png_malloc_warn(png_ptr, - (info_ptr->unknown_chunks_num + num_unknowns) * - png_sizeof(png_unknown_chunk)); - if (np == NULL) - { - png_warning(png_ptr, - "Out of memory while processing unknown chunk."); - return; - } - - png_memcpy(np, info_ptr->unknown_chunks, - info_ptr->unknown_chunks_num * png_sizeof(png_unknown_chunk)); - png_free(png_ptr, info_ptr->unknown_chunks); - info_ptr->unknown_chunks=NULL; - - for (i = 0; i < num_unknowns; i++) - { - png_unknown_chunkp to = np + info_ptr->unknown_chunks_num + i; - png_unknown_chunkp from = unknowns + i; - - png_memcpy((png_charp)to->name, - (png_charp)from->name, - png_sizeof(from->name)); - to->name[png_sizeof(to->name)-1] = '\0'; - - to->data = (png_bytep)png_malloc_warn(png_ptr, from->size); - if (to->data == NULL) - { - png_warning(png_ptr, - "Out of memory while processing unknown chunk."); - } - else - { - png_memcpy(to->data, from->data, from->size); - to->size = from->size; - - /* note our location in the read or write sequence */ - to->location = (png_byte)(png_ptr->mode & 0xff); - } - } - - info_ptr->unknown_chunks = np; - info_ptr->unknown_chunks_num += num_unknowns; -#ifdef PNG_FREE_ME_SUPPORTED - info_ptr->free_me |= PNG_FREE_UNKN; -#endif -} -void PNGAPI -png_set_unknown_chunk_location(png_structp png_ptr, png_infop info_ptr, - int chunk, int location) -{ - if(png_ptr != NULL && info_ptr != NULL && chunk >= 0 && chunk < - (int)info_ptr->unknown_chunks_num) - info_ptr->unknown_chunks[chunk].location = (png_byte)location; -} -#endif - -#if defined(PNG_1_0_X) || defined(PNG_1_2_X) -#if defined(PNG_READ_EMPTY_PLTE_SUPPORTED) || \ - defined(PNG_WRITE_EMPTY_PLTE_SUPPORTED) -void PNGAPI -png_permit_empty_plte (png_structp png_ptr, int empty_plte_permitted) -{ - /* This function is deprecated in favor of png_permit_mng_features() - and will be removed from libpng-1.3.0 */ - png_debug(1, "in png_permit_empty_plte, DEPRECATED.\n"); - if (png_ptr == NULL) - return; - png_ptr->mng_features_permitted = (png_byte) - ((png_ptr->mng_features_permitted & (~PNG_FLAG_MNG_EMPTY_PLTE)) | - ((empty_plte_permitted & PNG_FLAG_MNG_EMPTY_PLTE))); -} -#endif -#endif - -#if defined(PNG_MNG_FEATURES_SUPPORTED) -png_uint_32 PNGAPI -png_permit_mng_features (png_structp png_ptr, png_uint_32 mng_features) -{ - png_debug(1, "in png_permit_mng_features\n"); - if (png_ptr == NULL) - return (png_uint_32)0; - png_ptr->mng_features_permitted = - (png_byte)(mng_features & PNG_ALL_MNG_FEATURES); - return (png_uint_32)png_ptr->mng_features_permitted; -} -#endif - -#if defined(PNG_UNKNOWN_CHUNKS_SUPPORTED) -void PNGAPI -png_set_keep_unknown_chunks(png_structp png_ptr, int keep, png_bytep - chunk_list, int num_chunks) -{ - png_bytep new_list, p; - int i, old_num_chunks; - if (png_ptr == NULL) - return; - if (num_chunks == 0) - { - if(keep == PNG_HANDLE_CHUNK_ALWAYS || keep == PNG_HANDLE_CHUNK_IF_SAFE) - png_ptr->flags |= PNG_FLAG_KEEP_UNKNOWN_CHUNKS; - else - png_ptr->flags &= ~PNG_FLAG_KEEP_UNKNOWN_CHUNKS; - - if(keep == PNG_HANDLE_CHUNK_ALWAYS) - png_ptr->flags |= PNG_FLAG_KEEP_UNSAFE_CHUNKS; - else - png_ptr->flags &= ~PNG_FLAG_KEEP_UNSAFE_CHUNKS; - return; - } - if (chunk_list == NULL) - return; - old_num_chunks=png_ptr->num_chunk_list; - new_list=(png_bytep)png_malloc(png_ptr, - (png_uint_32)(5*(num_chunks+old_num_chunks))); - if(png_ptr->chunk_list != NULL) - { - png_memcpy(new_list, png_ptr->chunk_list, - (png_size_t)(5*old_num_chunks)); - png_free(png_ptr, png_ptr->chunk_list); - png_ptr->chunk_list=NULL; - } - png_memcpy(new_list+5*old_num_chunks, chunk_list, - (png_size_t)(5*num_chunks)); - for (p=new_list+5*old_num_chunks+4, i=0; inum_chunk_list=old_num_chunks+num_chunks; - png_ptr->chunk_list=new_list; -#ifdef PNG_FREE_ME_SUPPORTED - png_ptr->free_me |= PNG_FREE_LIST; -#endif -} -#endif - -#if defined(PNG_READ_USER_CHUNKS_SUPPORTED) -void PNGAPI -png_set_read_user_chunk_fn(png_structp png_ptr, png_voidp user_chunk_ptr, - png_user_chunk_ptr read_user_chunk_fn) -{ - png_debug(1, "in png_set_read_user_chunk_fn\n"); - if (png_ptr == NULL) - return; - png_ptr->read_user_chunk_fn = read_user_chunk_fn; - png_ptr->user_chunk_ptr = user_chunk_ptr; -} -#endif - -#if defined(PNG_INFO_IMAGE_SUPPORTED) -void PNGAPI -png_set_rows(png_structp png_ptr, png_infop info_ptr, png_bytepp row_pointers) -{ - png_debug1(1, "in %s storage function\n", "rows"); - - if (png_ptr == NULL || info_ptr == NULL) - return; - - if(info_ptr->row_pointers && (info_ptr->row_pointers != row_pointers)) - png_free_data(png_ptr, info_ptr, PNG_FREE_ROWS, 0); - info_ptr->row_pointers = row_pointers; - if(row_pointers) - info_ptr->valid |= PNG_INFO_IDAT; -} -#endif - -#ifdef PNG_WRITE_SUPPORTED -void PNGAPI -png_set_compression_buffer_size(png_structp png_ptr, png_uint_32 size) -{ - if (png_ptr == NULL) - return; - if(png_ptr->zbuf) - png_free(png_ptr, png_ptr->zbuf); - png_ptr->zbuf_size = (png_size_t)size; - png_ptr->zbuf = (png_bytep)png_malloc(png_ptr, size); - png_ptr->zstream.next_out = png_ptr->zbuf; - png_ptr->zstream.avail_out = (uInt)png_ptr->zbuf_size; -} -#endif - -void PNGAPI -png_set_invalid(png_structp png_ptr, png_infop info_ptr, int mask) -{ - if (png_ptr && info_ptr) - info_ptr->valid &= ~mask; -} - - -#ifndef PNG_1_0_X -#ifdef PNG_ASSEMBLER_CODE_SUPPORTED -/* function was added to libpng 1.2.0 and should always exist by default */ -void PNGAPI -png_set_asm_flags (png_structp png_ptr, png_uint_32 asm_flags) -{ -/* Obsolete as of libpng-1.2.20 and will be removed from libpng-1.4.0 */ - if (png_ptr != NULL) - png_ptr->asm_flags = 0; -} - -/* this function was added to libpng 1.2.0 */ -void PNGAPI -png_set_mmx_thresholds (png_structp png_ptr, - png_byte mmx_bitdepth_threshold, - png_uint_32 mmx_rowbytes_threshold) -{ -/* Obsolete as of libpng-1.2.20 and will be removed from libpng-1.4.0 */ - if (png_ptr == NULL) - return; -} -#endif /* ?PNG_ASSEMBLER_CODE_SUPPORTED */ - -#ifdef PNG_SET_USER_LIMITS_SUPPORTED -/* this function was added to libpng 1.2.6 */ -void PNGAPI -png_set_user_limits (png_structp png_ptr, png_uint_32 user_width_max, - png_uint_32 user_height_max) -{ - /* Images with dimensions larger than these limits will be - * rejected by png_set_IHDR(). To accept any PNG datastream - * regardless of dimensions, set both limits to 0x7ffffffL. - */ - if(png_ptr == NULL) return; - png_ptr->user_width_max = user_width_max; - png_ptr->user_height_max = user_height_max; -} -#endif /* ?PNG_SET_USER_LIMITS_SUPPORTED */ - -#endif /* ?PNG_1_0_X */ -#endif /* PNG_READ_SUPPORTED || PNG_WRITE_SUPPORTED */ diff --git a/src/3rdParty/CxImage/png/pngtrans.c b/src/3rdParty/CxImage/png/pngtrans.c deleted file mode 100644 index 1640095020..0000000000 --- a/src/3rdParty/CxImage/png/pngtrans.c +++ /dev/null @@ -1,662 +0,0 @@ - -/* pngtrans.c - transforms the data in a row (used by both readers and writers) - * - * Last changed in libpng 1.2.17 May 15, 2007 - * For conditions of distribution and use, see copyright notice in png.h - * Copyright (c) 1998-2007 Glenn Randers-Pehrson - * (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger) - * (Version 0.88 Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.) - */ - -#define PNG_INTERNAL -#include "png.h" - -#if defined(PNG_READ_SUPPORTED) || defined(PNG_WRITE_SUPPORTED) -#if defined(PNG_READ_BGR_SUPPORTED) || defined(PNG_WRITE_BGR_SUPPORTED) -/* turn on BGR-to-RGB mapping */ -void PNGAPI -png_set_bgr(png_structp png_ptr) -{ - png_debug(1, "in png_set_bgr\n"); - if(png_ptr == NULL) return; - png_ptr->transformations |= PNG_BGR; -} -#endif - -#if defined(PNG_READ_SWAP_SUPPORTED) || defined(PNG_WRITE_SWAP_SUPPORTED) -/* turn on 16 bit byte swapping */ -void PNGAPI -png_set_swap(png_structp png_ptr) -{ - png_debug(1, "in png_set_swap\n"); - if(png_ptr == NULL) return; - if (png_ptr->bit_depth == 16) - png_ptr->transformations |= PNG_SWAP_BYTES; -} -#endif - -#if defined(PNG_READ_PACK_SUPPORTED) || defined(PNG_WRITE_PACK_SUPPORTED) -/* turn on pixel packing */ -void PNGAPI -png_set_packing(png_structp png_ptr) -{ - png_debug(1, "in png_set_packing\n"); - if(png_ptr == NULL) return; - if (png_ptr->bit_depth < 8) - { - png_ptr->transformations |= PNG_PACK; - png_ptr->usr_bit_depth = 8; - } -} -#endif - -#if defined(PNG_READ_PACKSWAP_SUPPORTED)||defined(PNG_WRITE_PACKSWAP_SUPPORTED) -/* turn on packed pixel swapping */ -void PNGAPI -png_set_packswap(png_structp png_ptr) -{ - png_debug(1, "in png_set_packswap\n"); - if(png_ptr == NULL) return; - if (png_ptr->bit_depth < 8) - png_ptr->transformations |= PNG_PACKSWAP; -} -#endif - -#if defined(PNG_READ_SHIFT_SUPPORTED) || defined(PNG_WRITE_SHIFT_SUPPORTED) -void PNGAPI -png_set_shift(png_structp png_ptr, png_color_8p true_bits) -{ - png_debug(1, "in png_set_shift\n"); - if(png_ptr == NULL) return; - png_ptr->transformations |= PNG_SHIFT; - png_ptr->shift = *true_bits; -} -#endif - -#if defined(PNG_READ_INTERLACING_SUPPORTED) || \ - defined(PNG_WRITE_INTERLACING_SUPPORTED) -int PNGAPI -png_set_interlace_handling(png_structp png_ptr) -{ - png_debug(1, "in png_set_interlace handling\n"); - if (png_ptr && png_ptr->interlaced) - { - png_ptr->transformations |= PNG_INTERLACE; - return (7); - } - - return (1); -} -#endif - -#if defined(PNG_READ_FILLER_SUPPORTED) || defined(PNG_WRITE_FILLER_SUPPORTED) -/* Add a filler byte on read, or remove a filler or alpha byte on write. - * The filler type has changed in v0.95 to allow future 2-byte fillers - * for 48-bit input data, as well as to avoid problems with some compilers - * that don't like bytes as parameters. - */ -void PNGAPI -png_set_filler(png_structp png_ptr, png_uint_32 filler, int filler_loc) -{ - png_debug(1, "in png_set_filler\n"); - if(png_ptr == NULL) return; - png_ptr->transformations |= PNG_FILLER; - png_ptr->filler = (png_byte)filler; - if (filler_loc == PNG_FILLER_AFTER) - png_ptr->flags |= PNG_FLAG_FILLER_AFTER; - else - png_ptr->flags &= ~PNG_FLAG_FILLER_AFTER; - - /* This should probably go in the "do_read_filler" routine. - * I attempted to do that in libpng-1.0.1a but that caused problems - * so I restored it in libpng-1.0.2a - */ - - if (png_ptr->color_type == PNG_COLOR_TYPE_RGB) - { - png_ptr->usr_channels = 4; - } - - /* Also I added this in libpng-1.0.2a (what happens when we expand - * a less-than-8-bit grayscale to GA? */ - - if (png_ptr->color_type == PNG_COLOR_TYPE_GRAY && png_ptr->bit_depth >= 8) - { - png_ptr->usr_channels = 2; - } -} - -#if !defined(PNG_1_0_X) -/* Added to libpng-1.2.7 */ -void PNGAPI -png_set_add_alpha(png_structp png_ptr, png_uint_32 filler, int filler_loc) -{ - png_debug(1, "in png_set_add_alpha\n"); - if(png_ptr == NULL) return; - png_set_filler(png_ptr, filler, filler_loc); - png_ptr->transformations |= PNG_ADD_ALPHA; -} -#endif - -#endif - -#if defined(PNG_READ_SWAP_ALPHA_SUPPORTED) || \ - defined(PNG_WRITE_SWAP_ALPHA_SUPPORTED) -void PNGAPI -png_set_swap_alpha(png_structp png_ptr) -{ - png_debug(1, "in png_set_swap_alpha\n"); - if(png_ptr == NULL) return; - png_ptr->transformations |= PNG_SWAP_ALPHA; -} -#endif - -#if defined(PNG_READ_INVERT_ALPHA_SUPPORTED) || \ - defined(PNG_WRITE_INVERT_ALPHA_SUPPORTED) -void PNGAPI -png_set_invert_alpha(png_structp png_ptr) -{ - png_debug(1, "in png_set_invert_alpha\n"); - if(png_ptr == NULL) return; - png_ptr->transformations |= PNG_INVERT_ALPHA; -} -#endif - -#if defined(PNG_READ_INVERT_SUPPORTED) || defined(PNG_WRITE_INVERT_SUPPORTED) -void PNGAPI -png_set_invert_mono(png_structp png_ptr) -{ - png_debug(1, "in png_set_invert_mono\n"); - if(png_ptr == NULL) return; - png_ptr->transformations |= PNG_INVERT_MONO; -} - -/* invert monochrome grayscale data */ -void /* PRIVATE */ -png_do_invert(png_row_infop row_info, png_bytep row) -{ - png_debug(1, "in png_do_invert\n"); - /* This test removed from libpng version 1.0.13 and 1.2.0: - * if (row_info->bit_depth == 1 && - */ -#if defined(PNG_USELESS_TESTS_SUPPORTED) - if (row == NULL || row_info == NULL) - return; -#endif - if (row_info->color_type == PNG_COLOR_TYPE_GRAY) - { - png_bytep rp = row; - png_uint_32 i; - png_uint_32 istop = row_info->rowbytes; - - for (i = 0; i < istop; i++) - { - *rp = (png_byte)(~(*rp)); - rp++; - } - } - else if (row_info->color_type == PNG_COLOR_TYPE_GRAY_ALPHA && - row_info->bit_depth == 8) - { - png_bytep rp = row; - png_uint_32 i; - png_uint_32 istop = row_info->rowbytes; - - for (i = 0; i < istop; i+=2) - { - *rp = (png_byte)(~(*rp)); - rp+=2; - } - } - else if (row_info->color_type == PNG_COLOR_TYPE_GRAY_ALPHA && - row_info->bit_depth == 16) - { - png_bytep rp = row; - png_uint_32 i; - png_uint_32 istop = row_info->rowbytes; - - for (i = 0; i < istop; i+=4) - { - *rp = (png_byte)(~(*rp)); - *(rp+1) = (png_byte)(~(*(rp+1))); - rp+=4; - } - } -} -#endif - -#if defined(PNG_READ_SWAP_SUPPORTED) || defined(PNG_WRITE_SWAP_SUPPORTED) -/* swaps byte order on 16 bit depth images */ -void /* PRIVATE */ -png_do_swap(png_row_infop row_info, png_bytep row) -{ - png_debug(1, "in png_do_swap\n"); - if ( -#if defined(PNG_USELESS_TESTS_SUPPORTED) - row != NULL && row_info != NULL && -#endif - row_info->bit_depth == 16) - { - png_bytep rp = row; - png_uint_32 i; - png_uint_32 istop= row_info->width * row_info->channels; - - for (i = 0; i < istop; i++, rp += 2) - { - png_byte t = *rp; - *rp = *(rp + 1); - *(rp + 1) = t; - } - } -} -#endif - -#if defined(PNG_READ_PACKSWAP_SUPPORTED)||defined(PNG_WRITE_PACKSWAP_SUPPORTED) -static PNG_CONST png_byte onebppswaptable[256] = { - 0x00, 0x80, 0x40, 0xC0, 0x20, 0xA0, 0x60, 0xE0, - 0x10, 0x90, 0x50, 0xD0, 0x30, 0xB0, 0x70, 0xF0, - 0x08, 0x88, 0x48, 0xC8, 0x28, 0xA8, 0x68, 0xE8, - 0x18, 0x98, 0x58, 0xD8, 0x38, 0xB8, 0x78, 0xF8, - 0x04, 0x84, 0x44, 0xC4, 0x24, 0xA4, 0x64, 0xE4, - 0x14, 0x94, 0x54, 0xD4, 0x34, 0xB4, 0x74, 0xF4, - 0x0C, 0x8C, 0x4C, 0xCC, 0x2C, 0xAC, 0x6C, 0xEC, - 0x1C, 0x9C, 0x5C, 0xDC, 0x3C, 0xBC, 0x7C, 0xFC, - 0x02, 0x82, 0x42, 0xC2, 0x22, 0xA2, 0x62, 0xE2, - 0x12, 0x92, 0x52, 0xD2, 0x32, 0xB2, 0x72, 0xF2, - 0x0A, 0x8A, 0x4A, 0xCA, 0x2A, 0xAA, 0x6A, 0xEA, - 0x1A, 0x9A, 0x5A, 0xDA, 0x3A, 0xBA, 0x7A, 0xFA, - 0x06, 0x86, 0x46, 0xC6, 0x26, 0xA6, 0x66, 0xE6, - 0x16, 0x96, 0x56, 0xD6, 0x36, 0xB6, 0x76, 0xF6, - 0x0E, 0x8E, 0x4E, 0xCE, 0x2E, 0xAE, 0x6E, 0xEE, - 0x1E, 0x9E, 0x5E, 0xDE, 0x3E, 0xBE, 0x7E, 0xFE, - 0x01, 0x81, 0x41, 0xC1, 0x21, 0xA1, 0x61, 0xE1, - 0x11, 0x91, 0x51, 0xD1, 0x31, 0xB1, 0x71, 0xF1, - 0x09, 0x89, 0x49, 0xC9, 0x29, 0xA9, 0x69, 0xE9, - 0x19, 0x99, 0x59, 0xD9, 0x39, 0xB9, 0x79, 0xF9, - 0x05, 0x85, 0x45, 0xC5, 0x25, 0xA5, 0x65, 0xE5, - 0x15, 0x95, 0x55, 0xD5, 0x35, 0xB5, 0x75, 0xF5, - 0x0D, 0x8D, 0x4D, 0xCD, 0x2D, 0xAD, 0x6D, 0xED, - 0x1D, 0x9D, 0x5D, 0xDD, 0x3D, 0xBD, 0x7D, 0xFD, - 0x03, 0x83, 0x43, 0xC3, 0x23, 0xA3, 0x63, 0xE3, - 0x13, 0x93, 0x53, 0xD3, 0x33, 0xB3, 0x73, 0xF3, - 0x0B, 0x8B, 0x4B, 0xCB, 0x2B, 0xAB, 0x6B, 0xEB, - 0x1B, 0x9B, 0x5B, 0xDB, 0x3B, 0xBB, 0x7B, 0xFB, - 0x07, 0x87, 0x47, 0xC7, 0x27, 0xA7, 0x67, 0xE7, - 0x17, 0x97, 0x57, 0xD7, 0x37, 0xB7, 0x77, 0xF7, - 0x0F, 0x8F, 0x4F, 0xCF, 0x2F, 0xAF, 0x6F, 0xEF, - 0x1F, 0x9F, 0x5F, 0xDF, 0x3F, 0xBF, 0x7F, 0xFF -}; - -static PNG_CONST png_byte twobppswaptable[256] = { - 0x00, 0x40, 0x80, 0xC0, 0x10, 0x50, 0x90, 0xD0, - 0x20, 0x60, 0xA0, 0xE0, 0x30, 0x70, 0xB0, 0xF0, - 0x04, 0x44, 0x84, 0xC4, 0x14, 0x54, 0x94, 0xD4, - 0x24, 0x64, 0xA4, 0xE4, 0x34, 0x74, 0xB4, 0xF4, - 0x08, 0x48, 0x88, 0xC8, 0x18, 0x58, 0x98, 0xD8, - 0x28, 0x68, 0xA8, 0xE8, 0x38, 0x78, 0xB8, 0xF8, - 0x0C, 0x4C, 0x8C, 0xCC, 0x1C, 0x5C, 0x9C, 0xDC, - 0x2C, 0x6C, 0xAC, 0xEC, 0x3C, 0x7C, 0xBC, 0xFC, - 0x01, 0x41, 0x81, 0xC1, 0x11, 0x51, 0x91, 0xD1, - 0x21, 0x61, 0xA1, 0xE1, 0x31, 0x71, 0xB1, 0xF1, - 0x05, 0x45, 0x85, 0xC5, 0x15, 0x55, 0x95, 0xD5, - 0x25, 0x65, 0xA5, 0xE5, 0x35, 0x75, 0xB5, 0xF5, - 0x09, 0x49, 0x89, 0xC9, 0x19, 0x59, 0x99, 0xD9, - 0x29, 0x69, 0xA9, 0xE9, 0x39, 0x79, 0xB9, 0xF9, - 0x0D, 0x4D, 0x8D, 0xCD, 0x1D, 0x5D, 0x9D, 0xDD, - 0x2D, 0x6D, 0xAD, 0xED, 0x3D, 0x7D, 0xBD, 0xFD, - 0x02, 0x42, 0x82, 0xC2, 0x12, 0x52, 0x92, 0xD2, - 0x22, 0x62, 0xA2, 0xE2, 0x32, 0x72, 0xB2, 0xF2, - 0x06, 0x46, 0x86, 0xC6, 0x16, 0x56, 0x96, 0xD6, - 0x26, 0x66, 0xA6, 0xE6, 0x36, 0x76, 0xB6, 0xF6, - 0x0A, 0x4A, 0x8A, 0xCA, 0x1A, 0x5A, 0x9A, 0xDA, - 0x2A, 0x6A, 0xAA, 0xEA, 0x3A, 0x7A, 0xBA, 0xFA, - 0x0E, 0x4E, 0x8E, 0xCE, 0x1E, 0x5E, 0x9E, 0xDE, - 0x2E, 0x6E, 0xAE, 0xEE, 0x3E, 0x7E, 0xBE, 0xFE, - 0x03, 0x43, 0x83, 0xC3, 0x13, 0x53, 0x93, 0xD3, - 0x23, 0x63, 0xA3, 0xE3, 0x33, 0x73, 0xB3, 0xF3, - 0x07, 0x47, 0x87, 0xC7, 0x17, 0x57, 0x97, 0xD7, - 0x27, 0x67, 0xA7, 0xE7, 0x37, 0x77, 0xB7, 0xF7, - 0x0B, 0x4B, 0x8B, 0xCB, 0x1B, 0x5B, 0x9B, 0xDB, - 0x2B, 0x6B, 0xAB, 0xEB, 0x3B, 0x7B, 0xBB, 0xFB, - 0x0F, 0x4F, 0x8F, 0xCF, 0x1F, 0x5F, 0x9F, 0xDF, - 0x2F, 0x6F, 0xAF, 0xEF, 0x3F, 0x7F, 0xBF, 0xFF -}; - -static PNG_CONST png_byte fourbppswaptable[256] = { - 0x00, 0x10, 0x20, 0x30, 0x40, 0x50, 0x60, 0x70, - 0x80, 0x90, 0xA0, 0xB0, 0xC0, 0xD0, 0xE0, 0xF0, - 0x01, 0x11, 0x21, 0x31, 0x41, 0x51, 0x61, 0x71, - 0x81, 0x91, 0xA1, 0xB1, 0xC1, 0xD1, 0xE1, 0xF1, - 0x02, 0x12, 0x22, 0x32, 0x42, 0x52, 0x62, 0x72, - 0x82, 0x92, 0xA2, 0xB2, 0xC2, 0xD2, 0xE2, 0xF2, - 0x03, 0x13, 0x23, 0x33, 0x43, 0x53, 0x63, 0x73, - 0x83, 0x93, 0xA3, 0xB3, 0xC3, 0xD3, 0xE3, 0xF3, - 0x04, 0x14, 0x24, 0x34, 0x44, 0x54, 0x64, 0x74, - 0x84, 0x94, 0xA4, 0xB4, 0xC4, 0xD4, 0xE4, 0xF4, - 0x05, 0x15, 0x25, 0x35, 0x45, 0x55, 0x65, 0x75, - 0x85, 0x95, 0xA5, 0xB5, 0xC5, 0xD5, 0xE5, 0xF5, - 0x06, 0x16, 0x26, 0x36, 0x46, 0x56, 0x66, 0x76, - 0x86, 0x96, 0xA6, 0xB6, 0xC6, 0xD6, 0xE6, 0xF6, - 0x07, 0x17, 0x27, 0x37, 0x47, 0x57, 0x67, 0x77, - 0x87, 0x97, 0xA7, 0xB7, 0xC7, 0xD7, 0xE7, 0xF7, - 0x08, 0x18, 0x28, 0x38, 0x48, 0x58, 0x68, 0x78, - 0x88, 0x98, 0xA8, 0xB8, 0xC8, 0xD8, 0xE8, 0xF8, - 0x09, 0x19, 0x29, 0x39, 0x49, 0x59, 0x69, 0x79, - 0x89, 0x99, 0xA9, 0xB9, 0xC9, 0xD9, 0xE9, 0xF9, - 0x0A, 0x1A, 0x2A, 0x3A, 0x4A, 0x5A, 0x6A, 0x7A, - 0x8A, 0x9A, 0xAA, 0xBA, 0xCA, 0xDA, 0xEA, 0xFA, - 0x0B, 0x1B, 0x2B, 0x3B, 0x4B, 0x5B, 0x6B, 0x7B, - 0x8B, 0x9B, 0xAB, 0xBB, 0xCB, 0xDB, 0xEB, 0xFB, - 0x0C, 0x1C, 0x2C, 0x3C, 0x4C, 0x5C, 0x6C, 0x7C, - 0x8C, 0x9C, 0xAC, 0xBC, 0xCC, 0xDC, 0xEC, 0xFC, - 0x0D, 0x1D, 0x2D, 0x3D, 0x4D, 0x5D, 0x6D, 0x7D, - 0x8D, 0x9D, 0xAD, 0xBD, 0xCD, 0xDD, 0xED, 0xFD, - 0x0E, 0x1E, 0x2E, 0x3E, 0x4E, 0x5E, 0x6E, 0x7E, - 0x8E, 0x9E, 0xAE, 0xBE, 0xCE, 0xDE, 0xEE, 0xFE, - 0x0F, 0x1F, 0x2F, 0x3F, 0x4F, 0x5F, 0x6F, 0x7F, - 0x8F, 0x9F, 0xAF, 0xBF, 0xCF, 0xDF, 0xEF, 0xFF -}; - -/* swaps pixel packing order within bytes */ -void /* PRIVATE */ -png_do_packswap(png_row_infop row_info, png_bytep row) -{ - png_debug(1, "in png_do_packswap\n"); - if ( -#if defined(PNG_USELESS_TESTS_SUPPORTED) - row != NULL && row_info != NULL && -#endif - row_info->bit_depth < 8) - { - png_bytep rp, end, table; - - end = row + row_info->rowbytes; - - if (row_info->bit_depth == 1) - table = (png_bytep)onebppswaptable; - else if (row_info->bit_depth == 2) - table = (png_bytep)twobppswaptable; - else if (row_info->bit_depth == 4) - table = (png_bytep)fourbppswaptable; - else - return; - - for (rp = row; rp < end; rp++) - *rp = table[*rp]; - } -} -#endif /* PNG_READ_PACKSWAP_SUPPORTED or PNG_WRITE_PACKSWAP_SUPPORTED */ - -#if defined(PNG_WRITE_FILLER_SUPPORTED) || \ - defined(PNG_READ_STRIP_ALPHA_SUPPORTED) -/* remove filler or alpha byte(s) */ -void /* PRIVATE */ -png_do_strip_filler(png_row_infop row_info, png_bytep row, png_uint_32 flags) -{ - png_debug(1, "in png_do_strip_filler\n"); -#if defined(PNG_USELESS_TESTS_SUPPORTED) - if (row != NULL && row_info != NULL) -#endif - { - png_bytep sp=row; - png_bytep dp=row; - png_uint_32 row_width=row_info->width; - png_uint_32 i; - - if ((row_info->color_type == PNG_COLOR_TYPE_RGB || - (row_info->color_type == PNG_COLOR_TYPE_RGB_ALPHA && - (flags & PNG_FLAG_STRIP_ALPHA))) && - row_info->channels == 4) - { - if (row_info->bit_depth == 8) - { - /* This converts from RGBX or RGBA to RGB */ - if (flags & PNG_FLAG_FILLER_AFTER) - { - dp+=3; sp+=4; - for (i = 1; i < row_width; i++) - { - *dp++ = *sp++; - *dp++ = *sp++; - *dp++ = *sp++; - sp++; - } - } - /* This converts from XRGB or ARGB to RGB */ - else - { - for (i = 0; i < row_width; i++) - { - sp++; - *dp++ = *sp++; - *dp++ = *sp++; - *dp++ = *sp++; - } - } - row_info->pixel_depth = 24; - row_info->rowbytes = row_width * 3; - } - else /* if (row_info->bit_depth == 16) */ - { - if (flags & PNG_FLAG_FILLER_AFTER) - { - /* This converts from RRGGBBXX or RRGGBBAA to RRGGBB */ - sp += 8; dp += 6; - for (i = 1; i < row_width; i++) - { - /* This could be (although png_memcpy is probably slower): - png_memcpy(dp, sp, 6); - sp += 8; - dp += 6; - */ - - *dp++ = *sp++; - *dp++ = *sp++; - *dp++ = *sp++; - *dp++ = *sp++; - *dp++ = *sp++; - *dp++ = *sp++; - sp += 2; - } - } - else - { - /* This converts from XXRRGGBB or AARRGGBB to RRGGBB */ - for (i = 0; i < row_width; i++) - { - /* This could be (although png_memcpy is probably slower): - png_memcpy(dp, sp, 6); - sp += 8; - dp += 6; - */ - - sp+=2; - *dp++ = *sp++; - *dp++ = *sp++; - *dp++ = *sp++; - *dp++ = *sp++; - *dp++ = *sp++; - *dp++ = *sp++; - } - } - row_info->pixel_depth = 48; - row_info->rowbytes = row_width * 6; - } - row_info->channels = 3; - } - else if ((row_info->color_type == PNG_COLOR_TYPE_GRAY || - (row_info->color_type == PNG_COLOR_TYPE_GRAY_ALPHA && - (flags & PNG_FLAG_STRIP_ALPHA))) && - row_info->channels == 2) - { - if (row_info->bit_depth == 8) - { - /* This converts from GX or GA to G */ - if (flags & PNG_FLAG_FILLER_AFTER) - { - for (i = 0; i < row_width; i++) - { - *dp++ = *sp++; - sp++; - } - } - /* This converts from XG or AG to G */ - else - { - for (i = 0; i < row_width; i++) - { - sp++; - *dp++ = *sp++; - } - } - row_info->pixel_depth = 8; - row_info->rowbytes = row_width; - } - else /* if (row_info->bit_depth == 16) */ - { - if (flags & PNG_FLAG_FILLER_AFTER) - { - /* This converts from GGXX or GGAA to GG */ - sp += 4; dp += 2; - for (i = 1; i < row_width; i++) - { - *dp++ = *sp++; - *dp++ = *sp++; - sp += 2; - } - } - else - { - /* This converts from XXGG or AAGG to GG */ - for (i = 0; i < row_width; i++) - { - sp += 2; - *dp++ = *sp++; - *dp++ = *sp++; - } - } - row_info->pixel_depth = 16; - row_info->rowbytes = row_width * 2; - } - row_info->channels = 1; - } - if (flags & PNG_FLAG_STRIP_ALPHA) - row_info->color_type &= ~PNG_COLOR_MASK_ALPHA; - } -} -#endif - -#if defined(PNG_READ_BGR_SUPPORTED) || defined(PNG_WRITE_BGR_SUPPORTED) -/* swaps red and blue bytes within a pixel */ -void /* PRIVATE */ -png_do_bgr(png_row_infop row_info, png_bytep row) -{ - png_debug(1, "in png_do_bgr\n"); - if ( -#if defined(PNG_USELESS_TESTS_SUPPORTED) - row != NULL && row_info != NULL && -#endif - (row_info->color_type & PNG_COLOR_MASK_COLOR)) - { - png_uint_32 row_width = row_info->width; - if (row_info->bit_depth == 8) - { - if (row_info->color_type == PNG_COLOR_TYPE_RGB) - { - png_bytep rp; - png_uint_32 i; - - for (i = 0, rp = row; i < row_width; i++, rp += 3) - { - png_byte save = *rp; - *rp = *(rp + 2); - *(rp + 2) = save; - } - } - else if (row_info->color_type == PNG_COLOR_TYPE_RGB_ALPHA) - { - png_bytep rp; - png_uint_32 i; - - for (i = 0, rp = row; i < row_width; i++, rp += 4) - { - png_byte save = *rp; - *rp = *(rp + 2); - *(rp + 2) = save; - } - } - } - else if (row_info->bit_depth == 16) - { - if (row_info->color_type == PNG_COLOR_TYPE_RGB) - { - png_bytep rp; - png_uint_32 i; - - for (i = 0, rp = row; i < row_width; i++, rp += 6) - { - png_byte save = *rp; - *rp = *(rp + 4); - *(rp + 4) = save; - save = *(rp + 1); - *(rp + 1) = *(rp + 5); - *(rp + 5) = save; - } - } - else if (row_info->color_type == PNG_COLOR_TYPE_RGB_ALPHA) - { - png_bytep rp; - png_uint_32 i; - - for (i = 0, rp = row; i < row_width; i++, rp += 8) - { - png_byte save = *rp; - *rp = *(rp + 4); - *(rp + 4) = save; - save = *(rp + 1); - *(rp + 1) = *(rp + 5); - *(rp + 5) = save; - } - } - } - } -} -#endif /* PNG_READ_BGR_SUPPORTED or PNG_WRITE_BGR_SUPPORTED */ - -#if defined(PNG_READ_USER_TRANSFORM_SUPPORTED) || \ - defined(PNG_WRITE_USER_TRANSFORM_SUPPORTED) || \ - defined(PNG_LEGACY_SUPPORTED) -void PNGAPI -png_set_user_transform_info(png_structp png_ptr, png_voidp - user_transform_ptr, int user_transform_depth, int user_transform_channels) -{ - png_debug(1, "in png_set_user_transform_info\n"); - if(png_ptr == NULL) return; -#if defined(PNG_USER_TRANSFORM_PTR_SUPPORTED) - png_ptr->user_transform_ptr = user_transform_ptr; - png_ptr->user_transform_depth = (png_byte)user_transform_depth; - png_ptr->user_transform_channels = (png_byte)user_transform_channels; -#else - if(user_transform_ptr || user_transform_depth || user_transform_channels) - png_warning(png_ptr, - "This version of libpng does not support user transform info"); -#endif -} -#endif - -/* This function returns a pointer to the user_transform_ptr associated with - * the user transform functions. The application should free any memory - * associated with this pointer before png_write_destroy and png_read_destroy - * are called. - */ -png_voidp PNGAPI -png_get_user_transform_ptr(png_structp png_ptr) -{ -#if defined(PNG_USER_TRANSFORM_PTR_SUPPORTED) - if (png_ptr == NULL) return (NULL); - return ((png_voidp)png_ptr->user_transform_ptr); -#else - return (NULL); -#endif -} -#endif /* PNG_READ_SUPPORTED || PNG_WRITE_SUPPORTED */ diff --git a/src/3rdParty/CxImage/png/pngvcrd.c b/src/3rdParty/CxImage/png/pngvcrd.c deleted file mode 100644 index ce4233efe7..0000000000 --- a/src/3rdParty/CxImage/png/pngvcrd.c +++ /dev/null @@ -1 +0,0 @@ -/* pnggvrd.c was removed from libpng-1.2.20. */ diff --git a/src/3rdParty/CxImage/png/pngwio.c b/src/3rdParty/CxImage/png/pngwio.c deleted file mode 100644 index 371a4fad62..0000000000 --- a/src/3rdParty/CxImage/png/pngwio.c +++ /dev/null @@ -1,234 +0,0 @@ - -/* pngwio.c - functions for data output - * - * Last changed in libpng 1.2.13 November 13, 2006 - * For conditions of distribution and use, see copyright notice in png.h - * Copyright (c) 1998-2006 Glenn Randers-Pehrson - * (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger) - * (Version 0.88 Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.) - * - * This file provides a location for all output. Users who need - * special handling are expected to write functions that have the same - * arguments as these and perform similar functions, but that possibly - * use different output methods. Note that you shouldn't change these - * functions, but rather write replacement functions and then change - * them at run time with png_set_write_fn(...). - */ - -#define PNG_INTERNAL -#include "png.h" -#ifdef PNG_WRITE_SUPPORTED - -/* Write the data to whatever output you are using. The default routine - writes to a file pointer. Note that this routine sometimes gets called - with very small lengths, so you should implement some kind of simple - buffering if you are using unbuffered writes. This should never be asked - to write more than 64K on a 16 bit machine. */ - -void /* PRIVATE */ -png_write_data(png_structp png_ptr, png_bytep data, png_size_t length) -{ - if (png_ptr->write_data_fn != NULL ) - (*(png_ptr->write_data_fn))(png_ptr, data, length); - else - png_error(png_ptr, "Call to NULL write function"); -} - -#if !defined(PNG_NO_STDIO) -/* This is the function that does the actual writing of data. If you are - not writing to a standard C stream, you should create a replacement - write_data function and use it at run time with png_set_write_fn(), rather - than changing the library. */ -#ifndef USE_FAR_KEYWORD -void PNGAPI -png_default_write_data(png_structp png_ptr, png_bytep data, png_size_t length) -{ - png_uint_32 check; - - if(png_ptr == NULL) return; -#if defined(_WIN32_WCE) - if ( !WriteFile((HANDLE)(png_ptr->io_ptr), data, length, &check, NULL) ) - check = 0; -#else - check = fwrite(data, 1, length, (png_FILE_p)(png_ptr->io_ptr)); -#endif - if (check != length) - png_error(png_ptr, "Write Error"); -} -#else -/* this is the model-independent version. Since the standard I/O library - can't handle far buffers in the medium and small models, we have to copy - the data. -*/ - -#define NEAR_BUF_SIZE 1024 -#define MIN(a,b) (a <= b ? a : b) - -void PNGAPI -png_default_write_data(png_structp png_ptr, png_bytep data, png_size_t length) -{ - png_uint_32 check; - png_byte *near_data; /* Needs to be "png_byte *" instead of "png_bytep" */ - png_FILE_p io_ptr; - - if(png_ptr == NULL) return; - /* Check if data really is near. If so, use usual code. */ - near_data = (png_byte *)CVT_PTR_NOCHECK(data); - io_ptr = (png_FILE_p)CVT_PTR(png_ptr->io_ptr); - if ((png_bytep)near_data == data) - { -#if defined(_WIN32_WCE) - if ( !WriteFile(io_ptr, near_data, length, &check, NULL) ) - check = 0; -#else - check = fwrite(near_data, 1, length, io_ptr); -#endif - } - else - { - png_byte buf[NEAR_BUF_SIZE]; - png_size_t written, remaining, err; - check = 0; - remaining = length; - do - { - written = MIN(NEAR_BUF_SIZE, remaining); - png_memcpy(buf, data, written); /* copy far buffer to near buffer */ -#if defined(_WIN32_WCE) - if ( !WriteFile(io_ptr, buf, written, &err, NULL) ) - err = 0; -#else - err = fwrite(buf, 1, written, io_ptr); -#endif - if (err != written) - break; - else - check += err; - data += written; - remaining -= written; - } - while (remaining != 0); - } - if (check != length) - png_error(png_ptr, "Write Error"); -} - -#endif -#endif - -/* This function is called to output any data pending writing (normally - to disk). After png_flush is called, there should be no data pending - writing in any buffers. */ -#if defined(PNG_WRITE_FLUSH_SUPPORTED) -void /* PRIVATE */ -png_flush(png_structp png_ptr) -{ - if (png_ptr->output_flush_fn != NULL) - (*(png_ptr->output_flush_fn))(png_ptr); -} - -#if !defined(PNG_NO_STDIO) -void PNGAPI -png_default_flush(png_structp png_ptr) -{ -#if !defined(_WIN32_WCE) - png_FILE_p io_ptr; -#endif - if(png_ptr == NULL) return; -#if !defined(_WIN32_WCE) - io_ptr = (png_FILE_p)CVT_PTR((png_ptr->io_ptr)); - if (io_ptr != NULL) - fflush(io_ptr); -#endif -} -#endif -#endif - -/* This function allows the application to supply new output functions for - libpng if standard C streams aren't being used. - - This function takes as its arguments: - png_ptr - pointer to a png output data structure - io_ptr - pointer to user supplied structure containing info about - the output functions. May be NULL. - write_data_fn - pointer to a new output function that takes as its - arguments a pointer to a png_struct, a pointer to - data to be written, and a 32-bit unsigned int that is - the number of bytes to be written. The new write - function should call png_error(png_ptr, "Error msg") - to exit and output any fatal error messages. - flush_data_fn - pointer to a new flush function that takes as its - arguments a pointer to a png_struct. After a call to - the flush function, there should be no data in any buffers - or pending transmission. If the output method doesn't do - any buffering of ouput, a function prototype must still be - supplied although it doesn't have to do anything. If - PNG_WRITE_FLUSH_SUPPORTED is not defined at libpng compile - time, output_flush_fn will be ignored, although it must be - supplied for compatibility. */ -void PNGAPI -png_set_write_fn(png_structp png_ptr, png_voidp io_ptr, - png_rw_ptr write_data_fn, png_flush_ptr output_flush_fn) -{ - if(png_ptr == NULL) return; - png_ptr->io_ptr = io_ptr; - -#if !defined(PNG_NO_STDIO) - if (write_data_fn != NULL) - png_ptr->write_data_fn = write_data_fn; - else - png_ptr->write_data_fn = png_default_write_data; -#else - png_ptr->write_data_fn = write_data_fn; -#endif - -#if defined(PNG_WRITE_FLUSH_SUPPORTED) -#if !defined(PNG_NO_STDIO) - if (output_flush_fn != NULL) - png_ptr->output_flush_fn = output_flush_fn; - else - png_ptr->output_flush_fn = png_default_flush; -#else - png_ptr->output_flush_fn = output_flush_fn; -#endif -#endif /* PNG_WRITE_FLUSH_SUPPORTED */ - - /* It is an error to read while writing a png file */ - if (png_ptr->read_data_fn != NULL) - { - png_ptr->read_data_fn = NULL; - png_warning(png_ptr, - "Attempted to set both read_data_fn and write_data_fn in"); - png_warning(png_ptr, - "the same structure. Resetting read_data_fn to NULL."); - } -} - -#if defined(USE_FAR_KEYWORD) -#if defined(_MSC_VER) -void *png_far_to_near(png_structp png_ptr,png_voidp ptr, int check) -{ - void *near_ptr; - void FAR *far_ptr; - FP_OFF(near_ptr) = FP_OFF(ptr); - far_ptr = (void FAR *)near_ptr; - if(check != 0) - if(FP_SEG(ptr) != FP_SEG(far_ptr)) - png_error(png_ptr,"segment lost in conversion"); - return(near_ptr); -} -# else -void *png_far_to_near(png_structp png_ptr,png_voidp ptr, int check) -{ - void *near_ptr; - void FAR *far_ptr; - near_ptr = (void FAR *)ptr; - far_ptr = (void FAR *)near_ptr; - if(check != 0) - if(far_ptr != ptr) - png_error(png_ptr,"segment lost in conversion"); - return(near_ptr); -} -# endif -# endif -#endif /* PNG_WRITE_SUPPORTED */ diff --git a/src/3rdParty/CxImage/png/pngwrite.c b/src/3rdParty/CxImage/png/pngwrite.c deleted file mode 100644 index b1f6a593aa..0000000000 --- a/src/3rdParty/CxImage/png/pngwrite.c +++ /dev/null @@ -1,1516 +0,0 @@ - -/* pngwrite.c - general routines to write a PNG file - * - * Last changed in libpng 1.2.24 December 14, 2007 - * For conditions of distribution and use, see copyright notice in png.h - * Copyright (c) 1998-2007 Glenn Randers-Pehrson - * (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger) - * (Version 0.88 Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.) - */ - -/* get internal access to png.h */ -#define PNG_INTERNAL -#include "png.h" -#ifdef PNG_WRITE_SUPPORTED - -/* Writes all the PNG information. This is the suggested way to use the - * library. If you have a new chunk to add, make a function to write it, - * and put it in the correct location here. If you want the chunk written - * after the image data, put it in png_write_end(). I strongly encourage - * you to supply a PNG_INFO_ flag, and check info_ptr->valid before writing - * the chunk, as that will keep the code from breaking if you want to just - * write a plain PNG file. If you have long comments, I suggest writing - * them in png_write_end(), and compressing them. - */ -void PNGAPI -png_write_info_before_PLTE(png_structp png_ptr, png_infop info_ptr) -{ - png_debug(1, "in png_write_info_before_PLTE\n"); - if (png_ptr == NULL || info_ptr == NULL) - return; - if (!(png_ptr->mode & PNG_WROTE_INFO_BEFORE_PLTE)) - { - png_write_sig(png_ptr); /* write PNG signature */ -#if defined(PNG_MNG_FEATURES_SUPPORTED) - if((png_ptr->mode&PNG_HAVE_PNG_SIGNATURE)&&(png_ptr->mng_features_permitted)) - { - png_warning(png_ptr,"MNG features are not allowed in a PNG datastream"); - png_ptr->mng_features_permitted=0; - } -#endif - /* write IHDR information. */ - png_write_IHDR(png_ptr, info_ptr->width, info_ptr->height, - info_ptr->bit_depth, info_ptr->color_type, info_ptr->compression_type, - info_ptr->filter_type, -#if defined(PNG_WRITE_INTERLACING_SUPPORTED) - info_ptr->interlace_type); -#else - 0); -#endif - /* the rest of these check to see if the valid field has the appropriate - flag set, and if it does, writes the chunk. */ -#if defined(PNG_WRITE_gAMA_SUPPORTED) - if (info_ptr->valid & PNG_INFO_gAMA) - { -# ifdef PNG_FLOATING_POINT_SUPPORTED - png_write_gAMA(png_ptr, info_ptr->gamma); -#else -#ifdef PNG_FIXED_POINT_SUPPORTED - png_write_gAMA_fixed(png_ptr, info_ptr->int_gamma); -# endif -#endif - } -#endif -#if defined(PNG_WRITE_sRGB_SUPPORTED) - if (info_ptr->valid & PNG_INFO_sRGB) - png_write_sRGB(png_ptr, (int)info_ptr->srgb_intent); -#endif -#if defined(PNG_WRITE_iCCP_SUPPORTED) - if (info_ptr->valid & PNG_INFO_iCCP) - png_write_iCCP(png_ptr, info_ptr->iccp_name, PNG_COMPRESSION_TYPE_BASE, - info_ptr->iccp_profile, (int)info_ptr->iccp_proflen); -#endif -#if defined(PNG_WRITE_sBIT_SUPPORTED) - if (info_ptr->valid & PNG_INFO_sBIT) - png_write_sBIT(png_ptr, &(info_ptr->sig_bit), info_ptr->color_type); -#endif -#if defined(PNG_WRITE_cHRM_SUPPORTED) - if (info_ptr->valid & PNG_INFO_cHRM) - { -#ifdef PNG_FLOATING_POINT_SUPPORTED - png_write_cHRM(png_ptr, - info_ptr->x_white, info_ptr->y_white, - info_ptr->x_red, info_ptr->y_red, - info_ptr->x_green, info_ptr->y_green, - info_ptr->x_blue, info_ptr->y_blue); -#else -# ifdef PNG_FIXED_POINT_SUPPORTED - png_write_cHRM_fixed(png_ptr, - info_ptr->int_x_white, info_ptr->int_y_white, - info_ptr->int_x_red, info_ptr->int_y_red, - info_ptr->int_x_green, info_ptr->int_y_green, - info_ptr->int_x_blue, info_ptr->int_y_blue); -# endif -#endif - } -#endif -#if defined(PNG_WRITE_UNKNOWN_CHUNKS_SUPPORTED) - if (info_ptr->unknown_chunks_num) - { - png_unknown_chunk *up; - - png_debug(5, "writing extra chunks\n"); - - for (up = info_ptr->unknown_chunks; - up < info_ptr->unknown_chunks + info_ptr->unknown_chunks_num; - up++) - { - int keep=png_handle_as_unknown(png_ptr, up->name); - if (keep != PNG_HANDLE_CHUNK_NEVER && - up->location && !(up->location & PNG_HAVE_PLTE) && - !(up->location & PNG_HAVE_IDAT) && - ((up->name[3] & 0x20) || keep == PNG_HANDLE_CHUNK_ALWAYS || - (png_ptr->flags & PNG_FLAG_KEEP_UNSAFE_CHUNKS))) - { - png_write_chunk(png_ptr, up->name, up->data, up->size); - } - } - } -#endif - png_ptr->mode |= PNG_WROTE_INFO_BEFORE_PLTE; - } -} - -void PNGAPI -png_write_info(png_structp png_ptr, png_infop info_ptr) -{ -#if defined(PNG_WRITE_TEXT_SUPPORTED) || defined(PNG_WRITE_sPLT_SUPPORTED) - int i; -#endif - - png_debug(1, "in png_write_info\n"); - - if (png_ptr == NULL || info_ptr == NULL) - return; - - png_write_info_before_PLTE(png_ptr, info_ptr); - - if (info_ptr->valid & PNG_INFO_PLTE) - png_write_PLTE(png_ptr, info_ptr->palette, - (png_uint_32)info_ptr->num_palette); - else if (info_ptr->color_type == PNG_COLOR_TYPE_PALETTE) - png_error(png_ptr, "Valid palette required for paletted images"); - -#if defined(PNG_WRITE_tRNS_SUPPORTED) - if (info_ptr->valid & PNG_INFO_tRNS) - { -#if defined(PNG_WRITE_INVERT_ALPHA_SUPPORTED) - /* invert the alpha channel (in tRNS) */ - if ((png_ptr->transformations & PNG_INVERT_ALPHA) && - info_ptr->color_type == PNG_COLOR_TYPE_PALETTE) - { - int j; - for (j=0; j<(int)info_ptr->num_trans; j++) - info_ptr->trans[j] = (png_byte)(255 - info_ptr->trans[j]); - } -#endif - png_write_tRNS(png_ptr, info_ptr->trans, &(info_ptr->trans_values), - info_ptr->num_trans, info_ptr->color_type); - } -#endif -#if defined(PNG_WRITE_bKGD_SUPPORTED) - if (info_ptr->valid & PNG_INFO_bKGD) - png_write_bKGD(png_ptr, &(info_ptr->background), info_ptr->color_type); -#endif -#if defined(PNG_WRITE_hIST_SUPPORTED) - if (info_ptr->valid & PNG_INFO_hIST) - png_write_hIST(png_ptr, info_ptr->hist, info_ptr->num_palette); -#endif -#if defined(PNG_WRITE_oFFs_SUPPORTED) - if (info_ptr->valid & PNG_INFO_oFFs) - png_write_oFFs(png_ptr, info_ptr->x_offset, info_ptr->y_offset, - info_ptr->offset_unit_type); -#endif -#if defined(PNG_WRITE_pCAL_SUPPORTED) - if (info_ptr->valid & PNG_INFO_pCAL) - png_write_pCAL(png_ptr, info_ptr->pcal_purpose, info_ptr->pcal_X0, - info_ptr->pcal_X1, info_ptr->pcal_type, info_ptr->pcal_nparams, - info_ptr->pcal_units, info_ptr->pcal_params); -#endif -#if defined(PNG_WRITE_sCAL_SUPPORTED) - if (info_ptr->valid & PNG_INFO_sCAL) -#if defined(PNG_FLOATING_POINT_SUPPORTED) && !defined(PNG_NO_STDIO) - png_write_sCAL(png_ptr, (int)info_ptr->scal_unit, - info_ptr->scal_pixel_width, info_ptr->scal_pixel_height); -#else -#ifdef PNG_FIXED_POINT_SUPPORTED - png_write_sCAL_s(png_ptr, (int)info_ptr->scal_unit, - info_ptr->scal_s_width, info_ptr->scal_s_height); -#else - png_warning(png_ptr, - "png_write_sCAL not supported; sCAL chunk not written."); -#endif -#endif -#endif -#if defined(PNG_WRITE_pHYs_SUPPORTED) - if (info_ptr->valid & PNG_INFO_pHYs) - png_write_pHYs(png_ptr, info_ptr->x_pixels_per_unit, - info_ptr->y_pixels_per_unit, info_ptr->phys_unit_type); -#endif -#if defined(PNG_WRITE_tIME_SUPPORTED) - if (info_ptr->valid & PNG_INFO_tIME) - { - png_write_tIME(png_ptr, &(info_ptr->mod_time)); - png_ptr->mode |= PNG_WROTE_tIME; - } -#endif -#if defined(PNG_WRITE_sPLT_SUPPORTED) - if (info_ptr->valid & PNG_INFO_sPLT) - for (i = 0; i < (int)info_ptr->splt_palettes_num; i++) - png_write_sPLT(png_ptr, info_ptr->splt_palettes + i); -#endif -#if defined(PNG_WRITE_TEXT_SUPPORTED) - /* Check to see if we need to write text chunks */ - for (i = 0; i < info_ptr->num_text; i++) - { - png_debug2(2, "Writing header text chunk %d, type %d\n", i, - info_ptr->text[i].compression); - /* an internationalized chunk? */ - if (info_ptr->text[i].compression > 0) - { -#if defined(PNG_WRITE_iTXt_SUPPORTED) - /* write international chunk */ - png_write_iTXt(png_ptr, - info_ptr->text[i].compression, - info_ptr->text[i].key, - info_ptr->text[i].lang, - info_ptr->text[i].lang_key, - info_ptr->text[i].text); -#else - png_warning(png_ptr, "Unable to write international text"); -#endif - /* Mark this chunk as written */ - info_ptr->text[i].compression = PNG_TEXT_COMPRESSION_NONE_WR; - } - /* If we want a compressed text chunk */ - else if (info_ptr->text[i].compression == PNG_TEXT_COMPRESSION_zTXt) - { -#if defined(PNG_WRITE_zTXt_SUPPORTED) - /* write compressed chunk */ - png_write_zTXt(png_ptr, info_ptr->text[i].key, - info_ptr->text[i].text, 0, - info_ptr->text[i].compression); -#else - png_warning(png_ptr, "Unable to write compressed text"); -#endif - /* Mark this chunk as written */ - info_ptr->text[i].compression = PNG_TEXT_COMPRESSION_zTXt_WR; - } - else if (info_ptr->text[i].compression == PNG_TEXT_COMPRESSION_NONE) - { -#if defined(PNG_WRITE_tEXt_SUPPORTED) - /* write uncompressed chunk */ - png_write_tEXt(png_ptr, info_ptr->text[i].key, - info_ptr->text[i].text, - 0); -#else - png_warning(png_ptr, "Unable to write uncompressed text"); -#endif - /* Mark this chunk as written */ - info_ptr->text[i].compression = PNG_TEXT_COMPRESSION_NONE_WR; - } - } -#endif -#if defined(PNG_WRITE_UNKNOWN_CHUNKS_SUPPORTED) - if (info_ptr->unknown_chunks_num) - { - png_unknown_chunk *up; - - png_debug(5, "writing extra chunks\n"); - - for (up = info_ptr->unknown_chunks; - up < info_ptr->unknown_chunks + info_ptr->unknown_chunks_num; - up++) - { - int keep=png_handle_as_unknown(png_ptr, up->name); - if (keep != PNG_HANDLE_CHUNK_NEVER && - up->location && (up->location & PNG_HAVE_PLTE) && - !(up->location & PNG_HAVE_IDAT) && - ((up->name[3] & 0x20) || keep == PNG_HANDLE_CHUNK_ALWAYS || - (png_ptr->flags & PNG_FLAG_KEEP_UNSAFE_CHUNKS))) - { - png_write_chunk(png_ptr, up->name, up->data, up->size); - } - } - } -#endif -} - -/* Writes the end of the PNG file. If you don't want to write comments or - * time information, you can pass NULL for info. If you already wrote these - * in png_write_info(), do not write them again here. If you have long - * comments, I suggest writing them here, and compressing them. - */ -void PNGAPI -png_write_end(png_structp png_ptr, png_infop info_ptr) -{ - png_debug(1, "in png_write_end\n"); - if (png_ptr == NULL) - return; - if (!(png_ptr->mode & PNG_HAVE_IDAT)) - png_error(png_ptr, "No IDATs written into file"); - - /* see if user wants us to write information chunks */ - if (info_ptr != NULL) - { -#if defined(PNG_WRITE_TEXT_SUPPORTED) - int i; /* local index variable */ -#endif -#if defined(PNG_WRITE_tIME_SUPPORTED) - /* check to see if user has supplied a time chunk */ - if ((info_ptr->valid & PNG_INFO_tIME) && - !(png_ptr->mode & PNG_WROTE_tIME)) - png_write_tIME(png_ptr, &(info_ptr->mod_time)); -#endif -#if defined(PNG_WRITE_TEXT_SUPPORTED) - /* loop through comment chunks */ - for (i = 0; i < info_ptr->num_text; i++) - { - png_debug2(2, "Writing trailer text chunk %d, type %d\n", i, - info_ptr->text[i].compression); - /* an internationalized chunk? */ - if (info_ptr->text[i].compression > 0) - { -#if defined(PNG_WRITE_iTXt_SUPPORTED) - /* write international chunk */ - png_write_iTXt(png_ptr, - info_ptr->text[i].compression, - info_ptr->text[i].key, - info_ptr->text[i].lang, - info_ptr->text[i].lang_key, - info_ptr->text[i].text); -#else - png_warning(png_ptr, "Unable to write international text"); -#endif - /* Mark this chunk as written */ - info_ptr->text[i].compression = PNG_TEXT_COMPRESSION_NONE_WR; - } - else if (info_ptr->text[i].compression >= PNG_TEXT_COMPRESSION_zTXt) - { -#if defined(PNG_WRITE_zTXt_SUPPORTED) - /* write compressed chunk */ - png_write_zTXt(png_ptr, info_ptr->text[i].key, - info_ptr->text[i].text, 0, - info_ptr->text[i].compression); -#else - png_warning(png_ptr, "Unable to write compressed text"); -#endif - /* Mark this chunk as written */ - info_ptr->text[i].compression = PNG_TEXT_COMPRESSION_zTXt_WR; - } - else if (info_ptr->text[i].compression == PNG_TEXT_COMPRESSION_NONE) - { -#if defined(PNG_WRITE_tEXt_SUPPORTED) - /* write uncompressed chunk */ - png_write_tEXt(png_ptr, info_ptr->text[i].key, - info_ptr->text[i].text, 0); -#else - png_warning(png_ptr, "Unable to write uncompressed text"); -#endif - - /* Mark this chunk as written */ - info_ptr->text[i].compression = PNG_TEXT_COMPRESSION_NONE_WR; - } - } -#endif -#if defined(PNG_WRITE_UNKNOWN_CHUNKS_SUPPORTED) - if (info_ptr->unknown_chunks_num) - { - png_unknown_chunk *up; - - png_debug(5, "writing extra chunks\n"); - - for (up = info_ptr->unknown_chunks; - up < info_ptr->unknown_chunks + info_ptr->unknown_chunks_num; - up++) - { - int keep=png_handle_as_unknown(png_ptr, up->name); - if (keep != PNG_HANDLE_CHUNK_NEVER && - up->location && (up->location & PNG_AFTER_IDAT) && - ((up->name[3] & 0x20) || keep == PNG_HANDLE_CHUNK_ALWAYS || - (png_ptr->flags & PNG_FLAG_KEEP_UNSAFE_CHUNKS))) - { - png_write_chunk(png_ptr, up->name, up->data, up->size); - } - } - } -#endif - } - - png_ptr->mode |= PNG_AFTER_IDAT; - - /* write end of PNG file */ - png_write_IEND(png_ptr); -} - -#if defined(PNG_WRITE_tIME_SUPPORTED) -#if !defined(_WIN32_WCE) -/* "time.h" functions are not supported on WindowsCE */ -void PNGAPI -png_convert_from_struct_tm(png_timep ptime, struct tm FAR * ttime) -{ - png_debug(1, "in png_convert_from_struct_tm\n"); - ptime->year = (png_uint_16)(1900 + ttime->tm_year); - ptime->month = (png_byte)(ttime->tm_mon + 1); - ptime->day = (png_byte)ttime->tm_mday; - ptime->hour = (png_byte)ttime->tm_hour; - ptime->minute = (png_byte)ttime->tm_min; - ptime->second = (png_byte)ttime->tm_sec; -} - -void PNGAPI -png_convert_from_time_t(png_timep ptime, time_t ttime) -{ - struct tm *tbuf; - - png_debug(1, "in png_convert_from_time_t\n"); - tbuf = gmtime(&ttime); - png_convert_from_struct_tm(ptime, tbuf); -} -#endif -#endif - -/* Initialize png_ptr structure, and allocate any memory needed */ -png_structp PNGAPI -png_create_write_struct(png_const_charp user_png_ver, png_voidp error_ptr, - png_error_ptr error_fn, png_error_ptr warn_fn) -{ -#ifdef PNG_USER_MEM_SUPPORTED - return (png_create_write_struct_2(user_png_ver, error_ptr, error_fn, - warn_fn, png_voidp_NULL, png_malloc_ptr_NULL, png_free_ptr_NULL)); -} - -/* Alternate initialize png_ptr structure, and allocate any memory needed */ -png_structp PNGAPI -png_create_write_struct_2(png_const_charp user_png_ver, png_voidp error_ptr, - png_error_ptr error_fn, png_error_ptr warn_fn, png_voidp mem_ptr, - png_malloc_ptr malloc_fn, png_free_ptr free_fn) -{ -#endif /* PNG_USER_MEM_SUPPORTED */ - png_structp png_ptr; -#ifdef PNG_SETJMP_SUPPORTED -#ifdef USE_FAR_KEYWORD - jmp_buf jmpbuf; -#endif -#endif - int i; - png_debug(1, "in png_create_write_struct\n"); -#ifdef PNG_USER_MEM_SUPPORTED - png_ptr = (png_structp)png_create_struct_2(PNG_STRUCT_PNG, - (png_malloc_ptr)malloc_fn, (png_voidp)mem_ptr); -#else - png_ptr = (png_structp)png_create_struct(PNG_STRUCT_PNG); -#endif /* PNG_USER_MEM_SUPPORTED */ - if (png_ptr == NULL) - return (NULL); - - /* added at libpng-1.2.6 */ -#ifdef PNG_SET_USER_LIMITS_SUPPORTED - png_ptr->user_width_max=PNG_USER_WIDTH_MAX; - png_ptr->user_height_max=PNG_USER_HEIGHT_MAX; -#endif - -#ifdef PNG_SETJMP_SUPPORTED -#ifdef USE_FAR_KEYWORD - if (setjmp(jmpbuf)) -#else - if (setjmp(png_ptr->jmpbuf)) -#endif - { - png_free(png_ptr, png_ptr->zbuf); - png_ptr->zbuf=NULL; - png_destroy_struct(png_ptr); - return (NULL); - } -#ifdef USE_FAR_KEYWORD - png_memcpy(png_ptr->jmpbuf,jmpbuf,png_sizeof(jmp_buf)); -#endif -#endif - -#ifdef PNG_USER_MEM_SUPPORTED - png_set_mem_fn(png_ptr, mem_ptr, malloc_fn, free_fn); -#endif /* PNG_USER_MEM_SUPPORTED */ - png_set_error_fn(png_ptr, error_ptr, error_fn, warn_fn); - - i=0; - do - { - if(user_png_ver[i] != png_libpng_ver[i]) - png_ptr->flags |= PNG_FLAG_LIBRARY_MISMATCH; - } while (png_libpng_ver[i++]); - - if (png_ptr->flags & PNG_FLAG_LIBRARY_MISMATCH) - { - /* Libpng 0.90 and later are binary incompatible with libpng 0.89, so - * we must recompile any applications that use any older library version. - * For versions after libpng 1.0, we will be compatible, so we need - * only check the first digit. - */ - if (user_png_ver == NULL || user_png_ver[0] != png_libpng_ver[0] || - (user_png_ver[0] == '1' && user_png_ver[2] != png_libpng_ver[2]) || - (user_png_ver[0] == '0' && user_png_ver[2] < '9')) - { -#if !defined(PNG_NO_STDIO) && !defined(_WIN32_WCE) - char msg[80]; - if (user_png_ver) - { - png_snprintf(msg, 80, - "Application was compiled with png.h from libpng-%.20s", - user_png_ver); - png_warning(png_ptr, msg); - } - png_snprintf(msg, 80, - "Application is running with png.c from libpng-%.20s", - png_libpng_ver); - png_warning(png_ptr, msg); -#endif -#ifdef PNG_ERROR_NUMBERS_SUPPORTED - png_ptr->flags=0; -#endif - png_error(png_ptr, - "Incompatible libpng version in application and library"); - } - } - - /* initialize zbuf - compression buffer */ - png_ptr->zbuf_size = PNG_ZBUF_SIZE; - png_ptr->zbuf = (png_bytep)png_malloc(png_ptr, - (png_uint_32)png_ptr->zbuf_size); - - png_set_write_fn(png_ptr, png_voidp_NULL, png_rw_ptr_NULL, - png_flush_ptr_NULL); - -#if defined(PNG_WRITE_WEIGHTED_FILTER_SUPPORTED) - png_set_filter_heuristics(png_ptr, PNG_FILTER_HEURISTIC_DEFAULT, - 1, png_doublep_NULL, png_doublep_NULL); -#endif - -#ifdef PNG_SETJMP_SUPPORTED -/* Applications that neglect to set up their own setjmp() and then encounter - a png_error() will longjmp here. Since the jmpbuf is then meaningless we - abort instead of returning. */ -#ifdef USE_FAR_KEYWORD - if (setjmp(jmpbuf)) - PNG_ABORT(); - png_memcpy(png_ptr->jmpbuf,jmpbuf,png_sizeof(jmp_buf)); -#else - if (setjmp(png_ptr->jmpbuf)) - PNG_ABORT(); -#endif -#endif - return (png_ptr); -} - -/* Initialize png_ptr structure, and allocate any memory needed */ -#if defined(PNG_1_0_X) || defined(PNG_1_2_X) -/* Deprecated. */ -#undef png_write_init -void PNGAPI -png_write_init(png_structp png_ptr) -{ - /* We only come here via pre-1.0.7-compiled applications */ - png_write_init_2(png_ptr, "1.0.6 or earlier", 0, 0); -} - -void PNGAPI -png_write_init_2(png_structp png_ptr, png_const_charp user_png_ver, - png_size_t png_struct_size, png_size_t png_info_size) -{ - /* We only come here via pre-1.0.12-compiled applications */ - if(png_ptr == NULL) return; -#if !defined(PNG_NO_STDIO) && !defined(_WIN32_WCE) - if(png_sizeof(png_struct) > png_struct_size || - png_sizeof(png_info) > png_info_size) - { - char msg[80]; - png_ptr->warning_fn=NULL; - if (user_png_ver) - { - png_snprintf(msg, 80, - "Application was compiled with png.h from libpng-%.20s", - user_png_ver); - png_warning(png_ptr, msg); - } - png_snprintf(msg, 80, - "Application is running with png.c from libpng-%.20s", - png_libpng_ver); - png_warning(png_ptr, msg); - } -#endif - if(png_sizeof(png_struct) > png_struct_size) - { - png_ptr->error_fn=NULL; -#ifdef PNG_ERROR_NUMBERS_SUPPORTED - png_ptr->flags=0; -#endif - png_error(png_ptr, - "The png struct allocated by the application for writing is too small."); - } - if(png_sizeof(png_info) > png_info_size) - { - png_ptr->error_fn=NULL; -#ifdef PNG_ERROR_NUMBERS_SUPPORTED - png_ptr->flags=0; -#endif - png_error(png_ptr, - "The info struct allocated by the application for writing is too small."); - } - png_write_init_3(&png_ptr, user_png_ver, png_struct_size); -} -#endif /* PNG_1_0_X || PNG_1_2_X */ - - -void PNGAPI -png_write_init_3(png_structpp ptr_ptr, png_const_charp user_png_ver, - png_size_t png_struct_size) -{ - png_structp png_ptr=*ptr_ptr; -#ifdef PNG_SETJMP_SUPPORTED - jmp_buf tmp_jmp; /* to save current jump buffer */ -#endif - - int i = 0; - - if (png_ptr == NULL) - return; - - do - { - if (user_png_ver[i] != png_libpng_ver[i]) - { -#ifdef PNG_LEGACY_SUPPORTED - png_ptr->flags |= PNG_FLAG_LIBRARY_MISMATCH; -#else - png_ptr->warning_fn=NULL; - png_warning(png_ptr, - "Application uses deprecated png_write_init() and should be recompiled."); - break; -#endif - } - } while (png_libpng_ver[i++]); - - png_debug(1, "in png_write_init_3\n"); - -#ifdef PNG_SETJMP_SUPPORTED - /* save jump buffer and error functions */ - png_memcpy(tmp_jmp, png_ptr->jmpbuf, png_sizeof (jmp_buf)); -#endif - - if (png_sizeof(png_struct) > png_struct_size) - { - png_destroy_struct(png_ptr); - png_ptr = (png_structp)png_create_struct(PNG_STRUCT_PNG); - *ptr_ptr = png_ptr; - } - - /* reset all variables to 0 */ - png_memset(png_ptr, 0, png_sizeof (png_struct)); - - /* added at libpng-1.2.6 */ -#ifdef PNG_SET_USER_LIMITS_SUPPORTED - png_ptr->user_width_max=PNG_USER_WIDTH_MAX; - png_ptr->user_height_max=PNG_USER_HEIGHT_MAX; -#endif - -#ifdef PNG_SETJMP_SUPPORTED - /* restore jump buffer */ - png_memcpy(png_ptr->jmpbuf, tmp_jmp, png_sizeof (jmp_buf)); -#endif - - png_set_write_fn(png_ptr, png_voidp_NULL, png_rw_ptr_NULL, - png_flush_ptr_NULL); - - /* initialize zbuf - compression buffer */ - png_ptr->zbuf_size = PNG_ZBUF_SIZE; - png_ptr->zbuf = (png_bytep)png_malloc(png_ptr, - (png_uint_32)png_ptr->zbuf_size); - -#if defined(PNG_WRITE_WEIGHTED_FILTER_SUPPORTED) - png_set_filter_heuristics(png_ptr, PNG_FILTER_HEURISTIC_DEFAULT, - 1, png_doublep_NULL, png_doublep_NULL); -#endif -} - -/* Write a few rows of image data. If the image is interlaced, - * either you will have to write the 7 sub images, or, if you - * have called png_set_interlace_handling(), you will have to - * "write" the image seven times. - */ -void PNGAPI -png_write_rows(png_structp png_ptr, png_bytepp row, - png_uint_32 num_rows) -{ - png_uint_32 i; /* row counter */ - png_bytepp rp; /* row pointer */ - - png_debug(1, "in png_write_rows\n"); - - if (png_ptr == NULL) - return; - - /* loop through the rows */ - for (i = 0, rp = row; i < num_rows; i++, rp++) - { - png_write_row(png_ptr, *rp); - } -} - -/* Write the image. You only need to call this function once, even - * if you are writing an interlaced image. - */ -void PNGAPI -png_write_image(png_structp png_ptr, png_bytepp image) -{ - png_uint_32 i; /* row index */ - int pass, num_pass; /* pass variables */ - png_bytepp rp; /* points to current row */ - - if (png_ptr == NULL) - return; - - png_debug(1, "in png_write_image\n"); -#if defined(PNG_WRITE_INTERLACING_SUPPORTED) - /* intialize interlace handling. If image is not interlaced, - this will set pass to 1 */ - num_pass = png_set_interlace_handling(png_ptr); -#else - num_pass = 1; -#endif - /* loop through passes */ - for (pass = 0; pass < num_pass; pass++) - { - /* loop through image */ - for (i = 0, rp = image; i < png_ptr->height; i++, rp++) - { - png_write_row(png_ptr, *rp); - } - } -} - -/* called by user to write a row of image data */ -void PNGAPI -png_write_row(png_structp png_ptr, png_bytep row) -{ - if (png_ptr == NULL) - return; - png_debug2(1, "in png_write_row (row %ld, pass %d)\n", - png_ptr->row_number, png_ptr->pass); - - /* initialize transformations and other stuff if first time */ - if (png_ptr->row_number == 0 && png_ptr->pass == 0) - { - /* make sure we wrote the header info */ - if (!(png_ptr->mode & PNG_WROTE_INFO_BEFORE_PLTE)) - png_error(png_ptr, - "png_write_info was never called before png_write_row."); - - /* check for transforms that have been set but were defined out */ -#if !defined(PNG_WRITE_INVERT_SUPPORTED) && defined(PNG_READ_INVERT_SUPPORTED) - if (png_ptr->transformations & PNG_INVERT_MONO) - png_warning(png_ptr, "PNG_WRITE_INVERT_SUPPORTED is not defined."); -#endif -#if !defined(PNG_WRITE_FILLER_SUPPORTED) && defined(PNG_READ_FILLER_SUPPORTED) - if (png_ptr->transformations & PNG_FILLER) - png_warning(png_ptr, "PNG_WRITE_FILLER_SUPPORTED is not defined."); -#endif -#if !defined(PNG_WRITE_PACKSWAP_SUPPORTED) && defined(PNG_READ_PACKSWAP_SUPPORTED) - if (png_ptr->transformations & PNG_PACKSWAP) - png_warning(png_ptr, "PNG_WRITE_PACKSWAP_SUPPORTED is not defined."); -#endif -#if !defined(PNG_WRITE_PACK_SUPPORTED) && defined(PNG_READ_PACK_SUPPORTED) - if (png_ptr->transformations & PNG_PACK) - png_warning(png_ptr, "PNG_WRITE_PACK_SUPPORTED is not defined."); -#endif -#if !defined(PNG_WRITE_SHIFT_SUPPORTED) && defined(PNG_READ_SHIFT_SUPPORTED) - if (png_ptr->transformations & PNG_SHIFT) - png_warning(png_ptr, "PNG_WRITE_SHIFT_SUPPORTED is not defined."); -#endif -#if !defined(PNG_WRITE_BGR_SUPPORTED) && defined(PNG_READ_BGR_SUPPORTED) - if (png_ptr->transformations & PNG_BGR) - png_warning(png_ptr, "PNG_WRITE_BGR_SUPPORTED is not defined."); -#endif -#if !defined(PNG_WRITE_SWAP_SUPPORTED) && defined(PNG_READ_SWAP_SUPPORTED) - if (png_ptr->transformations & PNG_SWAP_BYTES) - png_warning(png_ptr, "PNG_WRITE_SWAP_SUPPORTED is not defined."); -#endif - - png_write_start_row(png_ptr); - } - -#if defined(PNG_WRITE_INTERLACING_SUPPORTED) - /* if interlaced and not interested in row, return */ - if (png_ptr->interlaced && (png_ptr->transformations & PNG_INTERLACE)) - { - switch (png_ptr->pass) - { - case 0: - if (png_ptr->row_number & 0x07) - { - png_write_finish_row(png_ptr); - return; - } - break; - case 1: - if ((png_ptr->row_number & 0x07) || png_ptr->width < 5) - { - png_write_finish_row(png_ptr); - return; - } - break; - case 2: - if ((png_ptr->row_number & 0x07) != 4) - { - png_write_finish_row(png_ptr); - return; - } - break; - case 3: - if ((png_ptr->row_number & 0x03) || png_ptr->width < 3) - { - png_write_finish_row(png_ptr); - return; - } - break; - case 4: - if ((png_ptr->row_number & 0x03) != 2) - { - png_write_finish_row(png_ptr); - return; - } - break; - case 5: - if ((png_ptr->row_number & 0x01) || png_ptr->width < 2) - { - png_write_finish_row(png_ptr); - return; - } - break; - case 6: - if (!(png_ptr->row_number & 0x01)) - { - png_write_finish_row(png_ptr); - return; - } - break; - } - } -#endif - - /* set up row info for transformations */ - png_ptr->row_info.color_type = png_ptr->color_type; - png_ptr->row_info.width = png_ptr->usr_width; - png_ptr->row_info.channels = png_ptr->usr_channels; - png_ptr->row_info.bit_depth = png_ptr->usr_bit_depth; - png_ptr->row_info.pixel_depth = (png_byte)(png_ptr->row_info.bit_depth * - png_ptr->row_info.channels); - - png_ptr->row_info.rowbytes = PNG_ROWBYTES(png_ptr->row_info.pixel_depth, - png_ptr->row_info.width); - - png_debug1(3, "row_info->color_type = %d\n", png_ptr->row_info.color_type); - png_debug1(3, "row_info->width = %lu\n", png_ptr->row_info.width); - png_debug1(3, "row_info->channels = %d\n", png_ptr->row_info.channels); - png_debug1(3, "row_info->bit_depth = %d\n", png_ptr->row_info.bit_depth); - png_debug1(3, "row_info->pixel_depth = %d\n", png_ptr->row_info.pixel_depth); - png_debug1(3, "row_info->rowbytes = %lu\n", png_ptr->row_info.rowbytes); - - /* Copy user's row into buffer, leaving room for filter byte. */ - png_memcpy_check(png_ptr, png_ptr->row_buf + 1, row, - png_ptr->row_info.rowbytes); - -#if defined(PNG_WRITE_INTERLACING_SUPPORTED) - /* handle interlacing */ - if (png_ptr->interlaced && png_ptr->pass < 6 && - (png_ptr->transformations & PNG_INTERLACE)) - { - png_do_write_interlace(&(png_ptr->row_info), - png_ptr->row_buf + 1, png_ptr->pass); - /* this should always get caught above, but still ... */ - if (!(png_ptr->row_info.width)) - { - png_write_finish_row(png_ptr); - return; - } - } -#endif - - /* handle other transformations */ - if (png_ptr->transformations) - png_do_write_transformations(png_ptr); - -#if defined(PNG_MNG_FEATURES_SUPPORTED) - /* Write filter_method 64 (intrapixel differencing) only if - * 1. Libpng was compiled with PNG_MNG_FEATURES_SUPPORTED and - * 2. Libpng did not write a PNG signature (this filter_method is only - * used in PNG datastreams that are embedded in MNG datastreams) and - * 3. The application called png_permit_mng_features with a mask that - * included PNG_FLAG_MNG_FILTER_64 and - * 4. The filter_method is 64 and - * 5. The color_type is RGB or RGBA - */ - if((png_ptr->mng_features_permitted & PNG_FLAG_MNG_FILTER_64) && - (png_ptr->filter_type == PNG_INTRAPIXEL_DIFFERENCING)) - { - /* Intrapixel differencing */ - png_do_write_intrapixel(&(png_ptr->row_info), png_ptr->row_buf + 1); - } -#endif - - /* Find a filter if necessary, filter the row and write it out. */ - png_write_find_filter(png_ptr, &(png_ptr->row_info)); - - if (png_ptr->write_row_fn != NULL) - (*(png_ptr->write_row_fn))(png_ptr, png_ptr->row_number, png_ptr->pass); -} - -#if defined(PNG_WRITE_FLUSH_SUPPORTED) -/* Set the automatic flush interval or 0 to turn flushing off */ -void PNGAPI -png_set_flush(png_structp png_ptr, int nrows) -{ - png_debug(1, "in png_set_flush\n"); - if (png_ptr == NULL) - return; - png_ptr->flush_dist = (nrows < 0 ? 0 : nrows); -} - -/* flush the current output buffers now */ -void PNGAPI -png_write_flush(png_structp png_ptr) -{ - int wrote_IDAT; - - png_debug(1, "in png_write_flush\n"); - if (png_ptr == NULL) - return; - /* We have already written out all of the data */ - if (png_ptr->row_number >= png_ptr->num_rows) - return; - - do - { - int ret; - - /* compress the data */ - ret = deflate(&png_ptr->zstream, Z_SYNC_FLUSH); - wrote_IDAT = 0; - - /* check for compression errors */ - if (ret != Z_OK) - { - if (png_ptr->zstream.msg != NULL) - png_error(png_ptr, png_ptr->zstream.msg); - else - png_error(png_ptr, "zlib error"); - } - - if (!(png_ptr->zstream.avail_out)) - { - /* write the IDAT and reset the zlib output buffer */ - png_write_IDAT(png_ptr, png_ptr->zbuf, - png_ptr->zbuf_size); - png_ptr->zstream.next_out = png_ptr->zbuf; - png_ptr->zstream.avail_out = (uInt)png_ptr->zbuf_size; - wrote_IDAT = 1; - } - } while(wrote_IDAT == 1); - - /* If there is any data left to be output, write it into a new IDAT */ - if (png_ptr->zbuf_size != png_ptr->zstream.avail_out) - { - /* write the IDAT and reset the zlib output buffer */ - png_write_IDAT(png_ptr, png_ptr->zbuf, - png_ptr->zbuf_size - png_ptr->zstream.avail_out); - png_ptr->zstream.next_out = png_ptr->zbuf; - png_ptr->zstream.avail_out = (uInt)png_ptr->zbuf_size; - } - png_ptr->flush_rows = 0; - png_flush(png_ptr); -} -#endif /* PNG_WRITE_FLUSH_SUPPORTED */ - -/* free all memory used by the write */ -void PNGAPI -png_destroy_write_struct(png_structpp png_ptr_ptr, png_infopp info_ptr_ptr) -{ - png_structp png_ptr = NULL; - png_infop info_ptr = NULL; -#ifdef PNG_USER_MEM_SUPPORTED - png_free_ptr free_fn = NULL; - png_voidp mem_ptr = NULL; -#endif - - png_debug(1, "in png_destroy_write_struct\n"); - if (png_ptr_ptr != NULL) - { - png_ptr = *png_ptr_ptr; -#ifdef PNG_USER_MEM_SUPPORTED - free_fn = png_ptr->free_fn; - mem_ptr = png_ptr->mem_ptr; -#endif - } - - if (info_ptr_ptr != NULL) - info_ptr = *info_ptr_ptr; - - if (info_ptr != NULL) - { - png_free_data(png_ptr, info_ptr, PNG_FREE_ALL, -1); - -#if defined(PNG_UNKNOWN_CHUNKS_SUPPORTED) - if (png_ptr->num_chunk_list) - { - png_free(png_ptr, png_ptr->chunk_list); - png_ptr->chunk_list=NULL; - png_ptr->num_chunk_list=0; - } -#endif - -#ifdef PNG_USER_MEM_SUPPORTED - png_destroy_struct_2((png_voidp)info_ptr, (png_free_ptr)free_fn, - (png_voidp)mem_ptr); -#else - png_destroy_struct((png_voidp)info_ptr); -#endif - *info_ptr_ptr = NULL; - } - - if (png_ptr != NULL) - { - png_write_destroy(png_ptr); -#ifdef PNG_USER_MEM_SUPPORTED - png_destroy_struct_2((png_voidp)png_ptr, (png_free_ptr)free_fn, - (png_voidp)mem_ptr); -#else - png_destroy_struct((png_voidp)png_ptr); -#endif - *png_ptr_ptr = NULL; - } -} - - -/* Free any memory used in png_ptr struct (old method) */ -void /* PRIVATE */ -png_write_destroy(png_structp png_ptr) -{ -#ifdef PNG_SETJMP_SUPPORTED - jmp_buf tmp_jmp; /* save jump buffer */ -#endif - png_error_ptr error_fn; - png_error_ptr warning_fn; - png_voidp error_ptr; -#ifdef PNG_USER_MEM_SUPPORTED - png_free_ptr free_fn; -#endif - - png_debug(1, "in png_write_destroy\n"); - /* free any memory zlib uses */ - deflateEnd(&png_ptr->zstream); - - /* free our memory. png_free checks NULL for us. */ - png_free(png_ptr, png_ptr->zbuf); - png_free(png_ptr, png_ptr->row_buf); -#ifndef PNG_NO_WRITE_FILTERING - png_free(png_ptr, png_ptr->prev_row); - png_free(png_ptr, png_ptr->sub_row); - png_free(png_ptr, png_ptr->up_row); - png_free(png_ptr, png_ptr->avg_row); - png_free(png_ptr, png_ptr->paeth_row); -#endif - -#if defined(PNG_TIME_RFC1123_SUPPORTED) - png_free(png_ptr, png_ptr->time_buffer); -#endif - -#if defined(PNG_WRITE_WEIGHTED_FILTER_SUPPORTED) - png_free(png_ptr, png_ptr->prev_filters); - png_free(png_ptr, png_ptr->filter_weights); - png_free(png_ptr, png_ptr->inv_filter_weights); - png_free(png_ptr, png_ptr->filter_costs); - png_free(png_ptr, png_ptr->inv_filter_costs); -#endif - -#ifdef PNG_SETJMP_SUPPORTED - /* reset structure */ - png_memcpy(tmp_jmp, png_ptr->jmpbuf, png_sizeof (jmp_buf)); -#endif - - error_fn = png_ptr->error_fn; - warning_fn = png_ptr->warning_fn; - error_ptr = png_ptr->error_ptr; -#ifdef PNG_USER_MEM_SUPPORTED - free_fn = png_ptr->free_fn; -#endif - - png_memset(png_ptr, 0, png_sizeof (png_struct)); - - png_ptr->error_fn = error_fn; - png_ptr->warning_fn = warning_fn; - png_ptr->error_ptr = error_ptr; -#ifdef PNG_USER_MEM_SUPPORTED - png_ptr->free_fn = free_fn; -#endif - -#ifdef PNG_SETJMP_SUPPORTED - png_memcpy(png_ptr->jmpbuf, tmp_jmp, png_sizeof (jmp_buf)); -#endif -} - -/* Allow the application to select one or more row filters to use. */ -void PNGAPI -png_set_filter(png_structp png_ptr, int method, int filters) -{ - png_debug(1, "in png_set_filter\n"); - if (png_ptr == NULL) - return; -#if defined(PNG_MNG_FEATURES_SUPPORTED) - if((png_ptr->mng_features_permitted & PNG_FLAG_MNG_FILTER_64) && - (method == PNG_INTRAPIXEL_DIFFERENCING)) - method = PNG_FILTER_TYPE_BASE; -#endif - if (method == PNG_FILTER_TYPE_BASE) - { - switch (filters & (PNG_ALL_FILTERS | 0x07)) - { -#ifndef PNG_NO_WRITE_FILTER - case 5: - case 6: - case 7: png_warning(png_ptr, "Unknown row filter for method 0"); -#endif /* PNG_NO_WRITE_FILTER */ - case PNG_FILTER_VALUE_NONE: - png_ptr->do_filter=PNG_FILTER_NONE; break; -#ifndef PNG_NO_WRITE_FILTER - case PNG_FILTER_VALUE_SUB: - png_ptr->do_filter=PNG_FILTER_SUB; break; - case PNG_FILTER_VALUE_UP: - png_ptr->do_filter=PNG_FILTER_UP; break; - case PNG_FILTER_VALUE_AVG: - png_ptr->do_filter=PNG_FILTER_AVG; break; - case PNG_FILTER_VALUE_PAETH: - png_ptr->do_filter=PNG_FILTER_PAETH; break; - default: png_ptr->do_filter = (png_byte)filters; break; -#else - default: png_warning(png_ptr, "Unknown row filter for method 0"); -#endif /* PNG_NO_WRITE_FILTER */ - } - - /* If we have allocated the row_buf, this means we have already started - * with the image and we should have allocated all of the filter buffers - * that have been selected. If prev_row isn't already allocated, then - * it is too late to start using the filters that need it, since we - * will be missing the data in the previous row. If an application - * wants to start and stop using particular filters during compression, - * it should start out with all of the filters, and then add and - * remove them after the start of compression. - */ - if (png_ptr->row_buf != NULL) - { -#ifndef PNG_NO_WRITE_FILTER - if ((png_ptr->do_filter & PNG_FILTER_SUB) && png_ptr->sub_row == NULL) - { - png_ptr->sub_row = (png_bytep)png_malloc(png_ptr, - (png_ptr->rowbytes + 1)); - png_ptr->sub_row[0] = PNG_FILTER_VALUE_SUB; - } - - if ((png_ptr->do_filter & PNG_FILTER_UP) && png_ptr->up_row == NULL) - { - if (png_ptr->prev_row == NULL) - { - png_warning(png_ptr, "Can't add Up filter after starting"); - png_ptr->do_filter &= ~PNG_FILTER_UP; - } - else - { - png_ptr->up_row = (png_bytep)png_malloc(png_ptr, - (png_ptr->rowbytes + 1)); - png_ptr->up_row[0] = PNG_FILTER_VALUE_UP; - } - } - - if ((png_ptr->do_filter & PNG_FILTER_AVG) && png_ptr->avg_row == NULL) - { - if (png_ptr->prev_row == NULL) - { - png_warning(png_ptr, "Can't add Average filter after starting"); - png_ptr->do_filter &= ~PNG_FILTER_AVG; - } - else - { - png_ptr->avg_row = (png_bytep)png_malloc(png_ptr, - (png_ptr->rowbytes + 1)); - png_ptr->avg_row[0] = PNG_FILTER_VALUE_AVG; - } - } - - if ((png_ptr->do_filter & PNG_FILTER_PAETH) && - png_ptr->paeth_row == NULL) - { - if (png_ptr->prev_row == NULL) - { - png_warning(png_ptr, "Can't add Paeth filter after starting"); - png_ptr->do_filter &= (png_byte)(~PNG_FILTER_PAETH); - } - else - { - png_ptr->paeth_row = (png_bytep)png_malloc(png_ptr, - (png_ptr->rowbytes + 1)); - png_ptr->paeth_row[0] = PNG_FILTER_VALUE_PAETH; - } - } - - if (png_ptr->do_filter == PNG_NO_FILTERS) -#endif /* PNG_NO_WRITE_FILTER */ - png_ptr->do_filter = PNG_FILTER_NONE; - } - } - else - png_error(png_ptr, "Unknown custom filter method"); -} - -/* This allows us to influence the way in which libpng chooses the "best" - * filter for the current scanline. While the "minimum-sum-of-absolute- - * differences metric is relatively fast and effective, there is some - * question as to whether it can be improved upon by trying to keep the - * filtered data going to zlib more consistent, hopefully resulting in - * better compression. - */ -#if defined(PNG_WRITE_WEIGHTED_FILTER_SUPPORTED) /* GRR 970116 */ -void PNGAPI -png_set_filter_heuristics(png_structp png_ptr, int heuristic_method, - int num_weights, png_doublep filter_weights, - png_doublep filter_costs) -{ - int i; - - png_debug(1, "in png_set_filter_heuristics\n"); - if (png_ptr == NULL) - return; - if (heuristic_method >= PNG_FILTER_HEURISTIC_LAST) - { - png_warning(png_ptr, "Unknown filter heuristic method"); - return; - } - - if (heuristic_method == PNG_FILTER_HEURISTIC_DEFAULT) - { - heuristic_method = PNG_FILTER_HEURISTIC_UNWEIGHTED; - } - - if (num_weights < 0 || filter_weights == NULL || - heuristic_method == PNG_FILTER_HEURISTIC_UNWEIGHTED) - { - num_weights = 0; - } - - png_ptr->num_prev_filters = (png_byte)num_weights; - png_ptr->heuristic_method = (png_byte)heuristic_method; - - if (num_weights > 0) - { - if (png_ptr->prev_filters == NULL) - { - png_ptr->prev_filters = (png_bytep)png_malloc(png_ptr, - (png_uint_32)(png_sizeof(png_byte) * num_weights)); - - /* To make sure that the weighting starts out fairly */ - for (i = 0; i < num_weights; i++) - { - png_ptr->prev_filters[i] = 255; - } - } - - if (png_ptr->filter_weights == NULL) - { - png_ptr->filter_weights = (png_uint_16p)png_malloc(png_ptr, - (png_uint_32)(png_sizeof(png_uint_16) * num_weights)); - - png_ptr->inv_filter_weights = (png_uint_16p)png_malloc(png_ptr, - (png_uint_32)(png_sizeof(png_uint_16) * num_weights)); - for (i = 0; i < num_weights; i++) - { - png_ptr->inv_filter_weights[i] = - png_ptr->filter_weights[i] = PNG_WEIGHT_FACTOR; - } - } - - for (i = 0; i < num_weights; i++) - { - if (filter_weights[i] < 0.0) - { - png_ptr->inv_filter_weights[i] = - png_ptr->filter_weights[i] = PNG_WEIGHT_FACTOR; - } - else - { - png_ptr->inv_filter_weights[i] = - (png_uint_16)((double)PNG_WEIGHT_FACTOR*filter_weights[i]+0.5); - png_ptr->filter_weights[i] = - (png_uint_16)((double)PNG_WEIGHT_FACTOR/filter_weights[i]+0.5); - } - } - } - - /* If, in the future, there are other filter methods, this would - * need to be based on png_ptr->filter. - */ - if (png_ptr->filter_costs == NULL) - { - png_ptr->filter_costs = (png_uint_16p)png_malloc(png_ptr, - (png_uint_32)(png_sizeof(png_uint_16) * PNG_FILTER_VALUE_LAST)); - - png_ptr->inv_filter_costs = (png_uint_16p)png_malloc(png_ptr, - (png_uint_32)(png_sizeof(png_uint_16) * PNG_FILTER_VALUE_LAST)); - - for (i = 0; i < PNG_FILTER_VALUE_LAST; i++) - { - png_ptr->inv_filter_costs[i] = - png_ptr->filter_costs[i] = PNG_COST_FACTOR; - } - } - - /* Here is where we set the relative costs of the different filters. We - * should take the desired compression level into account when setting - * the costs, so that Paeth, for instance, has a high relative cost at low - * compression levels, while it has a lower relative cost at higher - * compression settings. The filter types are in order of increasing - * relative cost, so it would be possible to do this with an algorithm. - */ - for (i = 0; i < PNG_FILTER_VALUE_LAST; i++) - { - if (filter_costs == NULL || filter_costs[i] < 0.0) - { - png_ptr->inv_filter_costs[i] = - png_ptr->filter_costs[i] = PNG_COST_FACTOR; - } - else if (filter_costs[i] >= 1.0) - { - png_ptr->inv_filter_costs[i] = - (png_uint_16)((double)PNG_COST_FACTOR / filter_costs[i] + 0.5); - png_ptr->filter_costs[i] = - (png_uint_16)((double)PNG_COST_FACTOR * filter_costs[i] + 0.5); - } - } -} -#endif /* PNG_WRITE_WEIGHTED_FILTER_SUPPORTED */ - -void PNGAPI -png_set_compression_level(png_structp png_ptr, int level) -{ - png_debug(1, "in png_set_compression_level\n"); - if (png_ptr == NULL) - return; - png_ptr->flags |= PNG_FLAG_ZLIB_CUSTOM_LEVEL; - png_ptr->zlib_level = level; -} - -void PNGAPI -png_set_compression_mem_level(png_structp png_ptr, int mem_level) -{ - png_debug(1, "in png_set_compression_mem_level\n"); - if (png_ptr == NULL) - return; - png_ptr->flags |= PNG_FLAG_ZLIB_CUSTOM_MEM_LEVEL; - png_ptr->zlib_mem_level = mem_level; -} - -void PNGAPI -png_set_compression_strategy(png_structp png_ptr, int strategy) -{ - png_debug(1, "in png_set_compression_strategy\n"); - if (png_ptr == NULL) - return; - png_ptr->flags |= PNG_FLAG_ZLIB_CUSTOM_STRATEGY; - png_ptr->zlib_strategy = strategy; -} - -void PNGAPI -png_set_compression_window_bits(png_structp png_ptr, int window_bits) -{ - if (png_ptr == NULL) - return; - if (window_bits > 15) - png_warning(png_ptr, "Only compression windows <= 32k supported by PNG"); - else if (window_bits < 8) - png_warning(png_ptr, "Only compression windows >= 256 supported by PNG"); -#ifndef WBITS_8_OK - /* avoid libpng bug with 256-byte windows */ - if (window_bits == 8) - { - png_warning(png_ptr, "Compression window is being reset to 512"); - window_bits=9; - } -#endif - png_ptr->flags |= PNG_FLAG_ZLIB_CUSTOM_WINDOW_BITS; - png_ptr->zlib_window_bits = window_bits; -} - -void PNGAPI -png_set_compression_method(png_structp png_ptr, int method) -{ - png_debug(1, "in png_set_compression_method\n"); - if (png_ptr == NULL) - return; - if (method != 8) - png_warning(png_ptr, "Only compression method 8 is supported by PNG"); - png_ptr->flags |= PNG_FLAG_ZLIB_CUSTOM_METHOD; - png_ptr->zlib_method = method; -} - -void PNGAPI -png_set_write_status_fn(png_structp png_ptr, png_write_status_ptr write_row_fn) -{ - if (png_ptr == NULL) - return; - png_ptr->write_row_fn = write_row_fn; -} - -#if defined(PNG_WRITE_USER_TRANSFORM_SUPPORTED) -void PNGAPI -png_set_write_user_transform_fn(png_structp png_ptr, png_user_transform_ptr - write_user_transform_fn) -{ - png_debug(1, "in png_set_write_user_transform_fn\n"); - if (png_ptr == NULL) - return; - png_ptr->transformations |= PNG_USER_TRANSFORM; - png_ptr->write_user_transform_fn = write_user_transform_fn; -} -#endif - - -#if defined(PNG_INFO_IMAGE_SUPPORTED) -void PNGAPI -png_write_png(png_structp png_ptr, png_infop info_ptr, - int transforms, voidp params) -{ - if (png_ptr == NULL || info_ptr == NULL) - return; -#if defined(PNG_WRITE_INVERT_ALPHA_SUPPORTED) - /* invert the alpha channel from opacity to transparency */ - if (transforms & PNG_TRANSFORM_INVERT_ALPHA) - png_set_invert_alpha(png_ptr); -#endif - - /* Write the file header information. */ - png_write_info(png_ptr, info_ptr); - - /* ------ these transformations don't touch the info structure ------- */ - -#if defined(PNG_WRITE_INVERT_SUPPORTED) - /* invert monochrome pixels */ - if (transforms & PNG_TRANSFORM_INVERT_MONO) - png_set_invert_mono(png_ptr); -#endif - -#if defined(PNG_WRITE_SHIFT_SUPPORTED) - /* Shift the pixels up to a legal bit depth and fill in - * as appropriate to correctly scale the image. - */ - if ((transforms & PNG_TRANSFORM_SHIFT) - && (info_ptr->valid & PNG_INFO_sBIT)) - png_set_shift(png_ptr, &info_ptr->sig_bit); -#endif - -#if defined(PNG_WRITE_PACK_SUPPORTED) - /* pack pixels into bytes */ - if (transforms & PNG_TRANSFORM_PACKING) - png_set_packing(png_ptr); -#endif - -#if defined(PNG_WRITE_SWAP_ALPHA_SUPPORTED) - /* swap location of alpha bytes from ARGB to RGBA */ - if (transforms & PNG_TRANSFORM_SWAP_ALPHA) - png_set_swap_alpha(png_ptr); -#endif - -#if defined(PNG_WRITE_FILLER_SUPPORTED) - /* Get rid of filler (OR ALPHA) bytes, pack XRGB/RGBX/ARGB/RGBA into - * RGB (4 channels -> 3 channels). The second parameter is not used. - */ - if (transforms & PNG_TRANSFORM_STRIP_FILLER) - png_set_filler(png_ptr, 0, PNG_FILLER_BEFORE); -#endif - -#if defined(PNG_WRITE_BGR_SUPPORTED) - /* flip BGR pixels to RGB */ - if (transforms & PNG_TRANSFORM_BGR) - png_set_bgr(png_ptr); -#endif - -#if defined(PNG_WRITE_SWAP_SUPPORTED) - /* swap bytes of 16-bit files to most significant byte first */ - if (transforms & PNG_TRANSFORM_SWAP_ENDIAN) - png_set_swap(png_ptr); -#endif - -#if defined(PNG_WRITE_PACKSWAP_SUPPORTED) - /* swap bits of 1, 2, 4 bit packed pixel formats */ - if (transforms & PNG_TRANSFORM_PACKSWAP) - png_set_packswap(png_ptr); -#endif - - /* ----------------------- end of transformations ------------------- */ - - /* write the bits */ - if (info_ptr->valid & PNG_INFO_IDAT) - png_write_image(png_ptr, info_ptr->row_pointers); - - /* It is REQUIRED to call this to finish writing the rest of the file */ - png_write_end(png_ptr, info_ptr); - - transforms = transforms; /* quiet compiler warnings */ - params = params; -} -#endif -#endif /* PNG_WRITE_SUPPORTED */ diff --git a/src/3rdParty/CxImage/png/pngwtran.c b/src/3rdParty/CxImage/png/pngwtran.c deleted file mode 100644 index 0372fe656c..0000000000 --- a/src/3rdParty/CxImage/png/pngwtran.c +++ /dev/null @@ -1,572 +0,0 @@ - -/* pngwtran.c - transforms the data in a row for PNG writers - * - * Last changed in libpng 1.2.9 April 14, 2006 - * For conditions of distribution and use, see copyright notice in png.h - * Copyright (c) 1998-2006 Glenn Randers-Pehrson - * (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger) - * (Version 0.88 Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.) - */ - -#define PNG_INTERNAL -#include "png.h" -#ifdef PNG_WRITE_SUPPORTED - -/* Transform the data according to the user's wishes. The order of - * transformations is significant. - */ -void /* PRIVATE */ -png_do_write_transformations(png_structp png_ptr) -{ - png_debug(1, "in png_do_write_transformations\n"); - - if (png_ptr == NULL) - return; - -#if defined(PNG_WRITE_USER_TRANSFORM_SUPPORTED) - if (png_ptr->transformations & PNG_USER_TRANSFORM) - if(png_ptr->write_user_transform_fn != NULL) - (*(png_ptr->write_user_transform_fn)) /* user write transform function */ - (png_ptr, /* png_ptr */ - &(png_ptr->row_info), /* row_info: */ - /* png_uint_32 width; width of row */ - /* png_uint_32 rowbytes; number of bytes in row */ - /* png_byte color_type; color type of pixels */ - /* png_byte bit_depth; bit depth of samples */ - /* png_byte channels; number of channels (1-4) */ - /* png_byte pixel_depth; bits per pixel (depth*channels) */ - png_ptr->row_buf + 1); /* start of pixel data for row */ -#endif -#if defined(PNG_WRITE_FILLER_SUPPORTED) - if (png_ptr->transformations & PNG_FILLER) - png_do_strip_filler(&(png_ptr->row_info), png_ptr->row_buf + 1, - png_ptr->flags); -#endif -#if defined(PNG_WRITE_PACKSWAP_SUPPORTED) - if (png_ptr->transformations & PNG_PACKSWAP) - png_do_packswap(&(png_ptr->row_info), png_ptr->row_buf + 1); -#endif -#if defined(PNG_WRITE_PACK_SUPPORTED) - if (png_ptr->transformations & PNG_PACK) - png_do_pack(&(png_ptr->row_info), png_ptr->row_buf + 1, - (png_uint_32)png_ptr->bit_depth); -#endif -#if defined(PNG_WRITE_SWAP_SUPPORTED) - if (png_ptr->transformations & PNG_SWAP_BYTES) - png_do_swap(&(png_ptr->row_info), png_ptr->row_buf + 1); -#endif -#if defined(PNG_WRITE_SHIFT_SUPPORTED) - if (png_ptr->transformations & PNG_SHIFT) - png_do_shift(&(png_ptr->row_info), png_ptr->row_buf + 1, - &(png_ptr->shift)); -#endif -#if defined(PNG_WRITE_SWAP_ALPHA_SUPPORTED) - if (png_ptr->transformations & PNG_SWAP_ALPHA) - png_do_write_swap_alpha(&(png_ptr->row_info), png_ptr->row_buf + 1); -#endif -#if defined(PNG_WRITE_INVERT_ALPHA_SUPPORTED) - if (png_ptr->transformations & PNG_INVERT_ALPHA) - png_do_write_invert_alpha(&(png_ptr->row_info), png_ptr->row_buf + 1); -#endif -#if defined(PNG_WRITE_BGR_SUPPORTED) - if (png_ptr->transformations & PNG_BGR) - png_do_bgr(&(png_ptr->row_info), png_ptr->row_buf + 1); -#endif -#if defined(PNG_WRITE_INVERT_SUPPORTED) - if (png_ptr->transformations & PNG_INVERT_MONO) - png_do_invert(&(png_ptr->row_info), png_ptr->row_buf + 1); -#endif -} - -#if defined(PNG_WRITE_PACK_SUPPORTED) -/* Pack pixels into bytes. Pass the true bit depth in bit_depth. The - * row_info bit depth should be 8 (one pixel per byte). The channels - * should be 1 (this only happens on grayscale and paletted images). - */ -void /* PRIVATE */ -png_do_pack(png_row_infop row_info, png_bytep row, png_uint_32 bit_depth) -{ - png_debug(1, "in png_do_pack\n"); - if (row_info->bit_depth == 8 && -#if defined(PNG_USELESS_TESTS_SUPPORTED) - row != NULL && row_info != NULL && -#endif - row_info->channels == 1) - { - switch ((int)bit_depth) - { - case 1: - { - png_bytep sp, dp; - int mask, v; - png_uint_32 i; - png_uint_32 row_width = row_info->width; - - sp = row; - dp = row; - mask = 0x80; - v = 0; - - for (i = 0; i < row_width; i++) - { - if (*sp != 0) - v |= mask; - sp++; - if (mask > 1) - mask >>= 1; - else - { - mask = 0x80; - *dp = (png_byte)v; - dp++; - v = 0; - } - } - if (mask != 0x80) - *dp = (png_byte)v; - break; - } - case 2: - { - png_bytep sp, dp; - int shift, v; - png_uint_32 i; - png_uint_32 row_width = row_info->width; - - sp = row; - dp = row; - shift = 6; - v = 0; - for (i = 0; i < row_width; i++) - { - png_byte value; - - value = (png_byte)(*sp & 0x03); - v |= (value << shift); - if (shift == 0) - { - shift = 6; - *dp = (png_byte)v; - dp++; - v = 0; - } - else - shift -= 2; - sp++; - } - if (shift != 6) - *dp = (png_byte)v; - break; - } - case 4: - { - png_bytep sp, dp; - int shift, v; - png_uint_32 i; - png_uint_32 row_width = row_info->width; - - sp = row; - dp = row; - shift = 4; - v = 0; - for (i = 0; i < row_width; i++) - { - png_byte value; - - value = (png_byte)(*sp & 0x0f); - v |= (value << shift); - - if (shift == 0) - { - shift = 4; - *dp = (png_byte)v; - dp++; - v = 0; - } - else - shift -= 4; - - sp++; - } - if (shift != 4) - *dp = (png_byte)v; - break; - } - } - row_info->bit_depth = (png_byte)bit_depth; - row_info->pixel_depth = (png_byte)(bit_depth * row_info->channels); - row_info->rowbytes = PNG_ROWBYTES(row_info->pixel_depth, - row_info->width); - } -} -#endif - -#if defined(PNG_WRITE_SHIFT_SUPPORTED) -/* Shift pixel values to take advantage of whole range. Pass the - * true number of bits in bit_depth. The row should be packed - * according to row_info->bit_depth. Thus, if you had a row of - * bit depth 4, but the pixels only had values from 0 to 7, you - * would pass 3 as bit_depth, and this routine would translate the - * data to 0 to 15. - */ -void /* PRIVATE */ -png_do_shift(png_row_infop row_info, png_bytep row, png_color_8p bit_depth) -{ - png_debug(1, "in png_do_shift\n"); -#if defined(PNG_USELESS_TESTS_SUPPORTED) - if (row != NULL && row_info != NULL && -#else - if ( -#endif - row_info->color_type != PNG_COLOR_TYPE_PALETTE) - { - int shift_start[4], shift_dec[4]; - int channels = 0; - - if (row_info->color_type & PNG_COLOR_MASK_COLOR) - { - shift_start[channels] = row_info->bit_depth - bit_depth->red; - shift_dec[channels] = bit_depth->red; - channels++; - shift_start[channels] = row_info->bit_depth - bit_depth->green; - shift_dec[channels] = bit_depth->green; - channels++; - shift_start[channels] = row_info->bit_depth - bit_depth->blue; - shift_dec[channels] = bit_depth->blue; - channels++; - } - else - { - shift_start[channels] = row_info->bit_depth - bit_depth->gray; - shift_dec[channels] = bit_depth->gray; - channels++; - } - if (row_info->color_type & PNG_COLOR_MASK_ALPHA) - { - shift_start[channels] = row_info->bit_depth - bit_depth->alpha; - shift_dec[channels] = bit_depth->alpha; - channels++; - } - - /* with low row depths, could only be grayscale, so one channel */ - if (row_info->bit_depth < 8) - { - png_bytep bp = row; - png_uint_32 i; - png_byte mask; - png_uint_32 row_bytes = row_info->rowbytes; - - if (bit_depth->gray == 1 && row_info->bit_depth == 2) - mask = 0x55; - else if (row_info->bit_depth == 4 && bit_depth->gray == 3) - mask = 0x11; - else - mask = 0xff; - - for (i = 0; i < row_bytes; i++, bp++) - { - png_uint_16 v; - int j; - - v = *bp; - *bp = 0; - for (j = shift_start[0]; j > -shift_dec[0]; j -= shift_dec[0]) - { - if (j > 0) - *bp |= (png_byte)((v << j) & 0xff); - else - *bp |= (png_byte)((v >> (-j)) & mask); - } - } - } - else if (row_info->bit_depth == 8) - { - png_bytep bp = row; - png_uint_32 i; - png_uint_32 istop = channels * row_info->width; - - for (i = 0; i < istop; i++, bp++) - { - - png_uint_16 v; - int j; - int c = (int)(i%channels); - - v = *bp; - *bp = 0; - for (j = shift_start[c]; j > -shift_dec[c]; j -= shift_dec[c]) - { - if (j > 0) - *bp |= (png_byte)((v << j) & 0xff); - else - *bp |= (png_byte)((v >> (-j)) & 0xff); - } - } - } - else - { - png_bytep bp; - png_uint_32 i; - png_uint_32 istop = channels * row_info->width; - - for (bp = row, i = 0; i < istop; i++) - { - int c = (int)(i%channels); - png_uint_16 value, v; - int j; - - v = (png_uint_16)(((png_uint_16)(*bp) << 8) + *(bp + 1)); - value = 0; - for (j = shift_start[c]; j > -shift_dec[c]; j -= shift_dec[c]) - { - if (j > 0) - value |= (png_uint_16)((v << j) & (png_uint_16)0xffff); - else - value |= (png_uint_16)((v >> (-j)) & (png_uint_16)0xffff); - } - *bp++ = (png_byte)(value >> 8); - *bp++ = (png_byte)(value & 0xff); - } - } - } -} -#endif - -#if defined(PNG_WRITE_SWAP_ALPHA_SUPPORTED) -void /* PRIVATE */ -png_do_write_swap_alpha(png_row_infop row_info, png_bytep row) -{ - png_debug(1, "in png_do_write_swap_alpha\n"); -#if defined(PNG_USELESS_TESTS_SUPPORTED) - if (row != NULL && row_info != NULL) -#endif - { - if (row_info->color_type == PNG_COLOR_TYPE_RGB_ALPHA) - { - /* This converts from ARGB to RGBA */ - if (row_info->bit_depth == 8) - { - png_bytep sp, dp; - png_uint_32 i; - png_uint_32 row_width = row_info->width; - for (i = 0, sp = dp = row; i < row_width; i++) - { - png_byte save = *(sp++); - *(dp++) = *(sp++); - *(dp++) = *(sp++); - *(dp++) = *(sp++); - *(dp++) = save; - } - } - /* This converts from AARRGGBB to RRGGBBAA */ - else - { - png_bytep sp, dp; - png_uint_32 i; - png_uint_32 row_width = row_info->width; - - for (i = 0, sp = dp = row; i < row_width; i++) - { - png_byte save[2]; - save[0] = *(sp++); - save[1] = *(sp++); - *(dp++) = *(sp++); - *(dp++) = *(sp++); - *(dp++) = *(sp++); - *(dp++) = *(sp++); - *(dp++) = *(sp++); - *(dp++) = *(sp++); - *(dp++) = save[0]; - *(dp++) = save[1]; - } - } - } - else if (row_info->color_type == PNG_COLOR_TYPE_GRAY_ALPHA) - { - /* This converts from AG to GA */ - if (row_info->bit_depth == 8) - { - png_bytep sp, dp; - png_uint_32 i; - png_uint_32 row_width = row_info->width; - - for (i = 0, sp = dp = row; i < row_width; i++) - { - png_byte save = *(sp++); - *(dp++) = *(sp++); - *(dp++) = save; - } - } - /* This converts from AAGG to GGAA */ - else - { - png_bytep sp, dp; - png_uint_32 i; - png_uint_32 row_width = row_info->width; - - for (i = 0, sp = dp = row; i < row_width; i++) - { - png_byte save[2]; - save[0] = *(sp++); - save[1] = *(sp++); - *(dp++) = *(sp++); - *(dp++) = *(sp++); - *(dp++) = save[0]; - *(dp++) = save[1]; - } - } - } - } -} -#endif - -#if defined(PNG_WRITE_INVERT_ALPHA_SUPPORTED) -void /* PRIVATE */ -png_do_write_invert_alpha(png_row_infop row_info, png_bytep row) -{ - png_debug(1, "in png_do_write_invert_alpha\n"); -#if defined(PNG_USELESS_TESTS_SUPPORTED) - if (row != NULL && row_info != NULL) -#endif - { - if (row_info->color_type == PNG_COLOR_TYPE_RGB_ALPHA) - { - /* This inverts the alpha channel in RGBA */ - if (row_info->bit_depth == 8) - { - png_bytep sp, dp; - png_uint_32 i; - png_uint_32 row_width = row_info->width; - for (i = 0, sp = dp = row; i < row_width; i++) - { - /* does nothing - *(dp++) = *(sp++); - *(dp++) = *(sp++); - *(dp++) = *(sp++); - */ - sp+=3; dp = sp; - *(dp++) = (png_byte)(255 - *(sp++)); - } - } - /* This inverts the alpha channel in RRGGBBAA */ - else - { - png_bytep sp, dp; - png_uint_32 i; - png_uint_32 row_width = row_info->width; - - for (i = 0, sp = dp = row; i < row_width; i++) - { - /* does nothing - *(dp++) = *(sp++); - *(dp++) = *(sp++); - *(dp++) = *(sp++); - *(dp++) = *(sp++); - *(dp++) = *(sp++); - *(dp++) = *(sp++); - */ - sp+=6; dp = sp; - *(dp++) = (png_byte)(255 - *(sp++)); - *(dp++) = (png_byte)(255 - *(sp++)); - } - } - } - else if (row_info->color_type == PNG_COLOR_TYPE_GRAY_ALPHA) - { - /* This inverts the alpha channel in GA */ - if (row_info->bit_depth == 8) - { - png_bytep sp, dp; - png_uint_32 i; - png_uint_32 row_width = row_info->width; - - for (i = 0, sp = dp = row; i < row_width; i++) - { - *(dp++) = *(sp++); - *(dp++) = (png_byte)(255 - *(sp++)); - } - } - /* This inverts the alpha channel in GGAA */ - else - { - png_bytep sp, dp; - png_uint_32 i; - png_uint_32 row_width = row_info->width; - - for (i = 0, sp = dp = row; i < row_width; i++) - { - /* does nothing - *(dp++) = *(sp++); - *(dp++) = *(sp++); - */ - sp+=2; dp = sp; - *(dp++) = (png_byte)(255 - *(sp++)); - *(dp++) = (png_byte)(255 - *(sp++)); - } - } - } - } -} -#endif - -#if defined(PNG_MNG_FEATURES_SUPPORTED) -/* undoes intrapixel differencing */ -void /* PRIVATE */ -png_do_write_intrapixel(png_row_infop row_info, png_bytep row) -{ - png_debug(1, "in png_do_write_intrapixel\n"); - if ( -#if defined(PNG_USELESS_TESTS_SUPPORTED) - row != NULL && row_info != NULL && -#endif - (row_info->color_type & PNG_COLOR_MASK_COLOR)) - { - int bytes_per_pixel; - png_uint_32 row_width = row_info->width; - if (row_info->bit_depth == 8) - { - png_bytep rp; - png_uint_32 i; - - if (row_info->color_type == PNG_COLOR_TYPE_RGB) - bytes_per_pixel = 3; - else if (row_info->color_type == PNG_COLOR_TYPE_RGB_ALPHA) - bytes_per_pixel = 4; - else - return; - - for (i = 0, rp = row; i < row_width; i++, rp += bytes_per_pixel) - { - *(rp) = (png_byte)((*rp - *(rp+1))&0xff); - *(rp+2) = (png_byte)((*(rp+2) - *(rp+1))&0xff); - } - } - else if (row_info->bit_depth == 16) - { - png_bytep rp; - png_uint_32 i; - - if (row_info->color_type == PNG_COLOR_TYPE_RGB) - bytes_per_pixel = 6; - else if (row_info->color_type == PNG_COLOR_TYPE_RGB_ALPHA) - bytes_per_pixel = 8; - else - return; - - for (i = 0, rp = row; i < row_width; i++, rp += bytes_per_pixel) - { - png_uint_32 s0 = (*(rp ) << 8) | *(rp+1); - png_uint_32 s1 = (*(rp+2) << 8) | *(rp+3); - png_uint_32 s2 = (*(rp+4) << 8) | *(rp+5); - png_uint_32 red = (png_uint_32)((s0-s1) & 0xffffL); - png_uint_32 blue = (png_uint_32)((s2-s1) & 0xffffL); - *(rp ) = (png_byte)((red >> 8) & 0xff); - *(rp+1) = (png_byte)(red & 0xff); - *(rp+4) = (png_byte)((blue >> 8) & 0xff); - *(rp+5) = (png_byte)(blue & 0xff); - } - } - } -} -#endif /* PNG_MNG_FEATURES_SUPPORTED */ -#endif /* PNG_WRITE_SUPPORTED */ diff --git a/src/3rdParty/CxImage/png/pngwutil.c b/src/3rdParty/CxImage/png/pngwutil.c deleted file mode 100644 index fef38aef9d..0000000000 --- a/src/3rdParty/CxImage/png/pngwutil.c +++ /dev/null @@ -1,2792 +0,0 @@ - -/* pngwutil.c - utilities to write a PNG file - * - * Last changed in libpng 1.2.20 Septhember 3, 2007 - * For conditions of distribution and use, see copyright notice in png.h - * Copyright (c) 1998-2007 Glenn Randers-Pehrson - * (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger) - * (Version 0.88 Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.) - */ - -#define PNG_INTERNAL -#include "png.h" -#ifdef PNG_WRITE_SUPPORTED - -/* Place a 32-bit number into a buffer in PNG byte order. We work - * with unsigned numbers for convenience, although one supported - * ancillary chunk uses signed (two's complement) numbers. - */ -void PNGAPI -png_save_uint_32(png_bytep buf, png_uint_32 i) -{ - buf[0] = (png_byte)((i >> 24) & 0xff); - buf[1] = (png_byte)((i >> 16) & 0xff); - buf[2] = (png_byte)((i >> 8) & 0xff); - buf[3] = (png_byte)(i & 0xff); -} - -/* The png_save_int_32 function assumes integers are stored in two's - * complement format. If this isn't the case, then this routine needs to - * be modified to write data in two's complement format. - */ -void PNGAPI -png_save_int_32(png_bytep buf, png_int_32 i) -{ - buf[0] = (png_byte)((i >> 24) & 0xff); - buf[1] = (png_byte)((i >> 16) & 0xff); - buf[2] = (png_byte)((i >> 8) & 0xff); - buf[3] = (png_byte)(i & 0xff); -} - -/* Place a 16-bit number into a buffer in PNG byte order. - * The parameter is declared unsigned int, not png_uint_16, - * just to avoid potential problems on pre-ANSI C compilers. - */ -void PNGAPI -png_save_uint_16(png_bytep buf, unsigned int i) -{ - buf[0] = (png_byte)((i >> 8) & 0xff); - buf[1] = (png_byte)(i & 0xff); -} - -/* Write a PNG chunk all at once. The type is an array of ASCII characters - * representing the chunk name. The array must be at least 4 bytes in - * length, and does not need to be null terminated. To be safe, pass the - * pre-defined chunk names here, and if you need a new one, define it - * where the others are defined. The length is the length of the data. - * All the data must be present. If that is not possible, use the - * png_write_chunk_start(), png_write_chunk_data(), and png_write_chunk_end() - * functions instead. - */ -void PNGAPI -png_write_chunk(png_structp png_ptr, png_bytep chunk_name, - png_bytep data, png_size_t length) -{ - if(png_ptr == NULL) return; - png_write_chunk_start(png_ptr, chunk_name, (png_uint_32)length); - png_write_chunk_data(png_ptr, data, length); - png_write_chunk_end(png_ptr); -} - -/* Write the start of a PNG chunk. The type is the chunk type. - * The total_length is the sum of the lengths of all the data you will be - * passing in png_write_chunk_data(). - */ -void PNGAPI -png_write_chunk_start(png_structp png_ptr, png_bytep chunk_name, - png_uint_32 length) -{ - png_byte buf[4]; - png_debug2(0, "Writing %s chunk (%lu bytes)\n", chunk_name, length); - if(png_ptr == NULL) return; - - /* write the length */ - png_save_uint_32(buf, length); - png_write_data(png_ptr, buf, (png_size_t)4); - - /* write the chunk name */ - png_write_data(png_ptr, chunk_name, (png_size_t)4); - /* reset the crc and run it over the chunk name */ - png_reset_crc(png_ptr); - png_calculate_crc(png_ptr, chunk_name, (png_size_t)4); -} - -/* Write the data of a PNG chunk started with png_write_chunk_start(). - * Note that multiple calls to this function are allowed, and that the - * sum of the lengths from these calls *must* add up to the total_length - * given to png_write_chunk_start(). - */ -void PNGAPI -png_write_chunk_data(png_structp png_ptr, png_bytep data, png_size_t length) -{ - /* write the data, and run the CRC over it */ - if(png_ptr == NULL) return; - if (data != NULL && length > 0) - { - png_calculate_crc(png_ptr, data, length); - png_write_data(png_ptr, data, length); - } -} - -/* Finish a chunk started with png_write_chunk_start(). */ -void PNGAPI -png_write_chunk_end(png_structp png_ptr) -{ - png_byte buf[4]; - - if(png_ptr == NULL) return; - - /* write the crc */ - png_save_uint_32(buf, png_ptr->crc); - - png_write_data(png_ptr, buf, (png_size_t)4); -} - -/* Simple function to write the signature. If we have already written - * the magic bytes of the signature, or more likely, the PNG stream is - * being embedded into another stream and doesn't need its own signature, - * we should call png_set_sig_bytes() to tell libpng how many of the - * bytes have already been written. - */ -void /* PRIVATE */ -png_write_sig(png_structp png_ptr) -{ - png_byte png_signature[8] = {137, 80, 78, 71, 13, 10, 26, 10}; - /* write the rest of the 8 byte signature */ - png_write_data(png_ptr, &png_signature[png_ptr->sig_bytes], - (png_size_t)8 - png_ptr->sig_bytes); - if(png_ptr->sig_bytes < 3) - png_ptr->mode |= PNG_HAVE_PNG_SIGNATURE; -} - -#if defined(PNG_WRITE_TEXT_SUPPORTED) || defined(PNG_WRITE_iCCP_SUPPORTED) -/* - * This pair of functions encapsulates the operation of (a) compressing a - * text string, and (b) issuing it later as a series of chunk data writes. - * The compression_state structure is shared context for these functions - * set up by the caller in order to make the whole mess thread-safe. - */ - -typedef struct -{ - char *input; /* the uncompressed input data */ - int input_len; /* its length */ - int num_output_ptr; /* number of output pointers used */ - int max_output_ptr; /* size of output_ptr */ - png_charpp output_ptr; /* array of pointers to output */ -} compression_state; - -/* compress given text into storage in the png_ptr structure */ -static int /* PRIVATE */ -png_text_compress(png_structp png_ptr, - png_charp text, png_size_t text_len, int compression, - compression_state *comp) -{ - int ret; - - comp->num_output_ptr = 0; - comp->max_output_ptr = 0; - comp->output_ptr = NULL; - comp->input = NULL; - comp->input_len = 0; - - /* we may just want to pass the text right through */ - if (compression == PNG_TEXT_COMPRESSION_NONE) - { - comp->input = text; - comp->input_len = text_len; - return((int)text_len); - } - - if (compression >= PNG_TEXT_COMPRESSION_LAST) - { -#if !defined(PNG_NO_STDIO) && !defined(_WIN32_WCE) - char msg[50]; - png_snprintf(msg, 50, "Unknown compression type %d", compression); - png_warning(png_ptr, msg); -#else - png_warning(png_ptr, "Unknown compression type"); -#endif - } - - /* We can't write the chunk until we find out how much data we have, - * which means we need to run the compressor first and save the - * output. This shouldn't be a problem, as the vast majority of - * comments should be reasonable, but we will set up an array of - * malloc'd pointers to be sure. - * - * If we knew the application was well behaved, we could simplify this - * greatly by assuming we can always malloc an output buffer large - * enough to hold the compressed text ((1001 * text_len / 1000) + 12) - * and malloc this directly. The only time this would be a bad idea is - * if we can't malloc more than 64K and we have 64K of random input - * data, or if the input string is incredibly large (although this - * wouldn't cause a failure, just a slowdown due to swapping). - */ - - /* set up the compression buffers */ - png_ptr->zstream.avail_in = (uInt)text_len; - png_ptr->zstream.next_in = (Bytef *)text; - png_ptr->zstream.avail_out = (uInt)png_ptr->zbuf_size; - png_ptr->zstream.next_out = (Bytef *)png_ptr->zbuf; - - /* this is the same compression loop as in png_write_row() */ - do - { - /* compress the data */ - ret = deflate(&png_ptr->zstream, Z_NO_FLUSH); - if (ret != Z_OK) - { - /* error */ - if (png_ptr->zstream.msg != NULL) - png_error(png_ptr, png_ptr->zstream.msg); - else - png_error(png_ptr, "zlib error"); - } - /* check to see if we need more room */ - if (!(png_ptr->zstream.avail_out)) - { - /* make sure the output array has room */ - if (comp->num_output_ptr >= comp->max_output_ptr) - { - int old_max; - - old_max = comp->max_output_ptr; - comp->max_output_ptr = comp->num_output_ptr + 4; - if (comp->output_ptr != NULL) - { - png_charpp old_ptr; - - old_ptr = comp->output_ptr; - comp->output_ptr = (png_charpp)png_malloc(png_ptr, - (png_uint_32)(comp->max_output_ptr * - png_sizeof (png_charpp))); - png_memcpy(comp->output_ptr, old_ptr, old_max - * png_sizeof (png_charp)); - png_free(png_ptr, old_ptr); - } - else - comp->output_ptr = (png_charpp)png_malloc(png_ptr, - (png_uint_32)(comp->max_output_ptr * - png_sizeof (png_charp))); - } - - /* save the data */ - comp->output_ptr[comp->num_output_ptr] = (png_charp)png_malloc(png_ptr, - (png_uint_32)png_ptr->zbuf_size); - png_memcpy(comp->output_ptr[comp->num_output_ptr], png_ptr->zbuf, - png_ptr->zbuf_size); - comp->num_output_ptr++; - - /* and reset the buffer */ - png_ptr->zstream.avail_out = (uInt)png_ptr->zbuf_size; - png_ptr->zstream.next_out = png_ptr->zbuf; - } - /* continue until we don't have any more to compress */ - } while (png_ptr->zstream.avail_in); - - /* finish the compression */ - do - { - /* tell zlib we are finished */ - ret = deflate(&png_ptr->zstream, Z_FINISH); - - if (ret == Z_OK) - { - /* check to see if we need more room */ - if (!(png_ptr->zstream.avail_out)) - { - /* check to make sure our output array has room */ - if (comp->num_output_ptr >= comp->max_output_ptr) - { - int old_max; - - old_max = comp->max_output_ptr; - comp->max_output_ptr = comp->num_output_ptr + 4; - if (comp->output_ptr != NULL) - { - png_charpp old_ptr; - - old_ptr = comp->output_ptr; - /* This could be optimized to realloc() */ - comp->output_ptr = (png_charpp)png_malloc(png_ptr, - (png_uint_32)(comp->max_output_ptr * - png_sizeof (png_charpp))); - png_memcpy(comp->output_ptr, old_ptr, - old_max * png_sizeof (png_charp)); - png_free(png_ptr, old_ptr); - } - else - comp->output_ptr = (png_charpp)png_malloc(png_ptr, - (png_uint_32)(comp->max_output_ptr * - png_sizeof (png_charp))); - } - - /* save off the data */ - comp->output_ptr[comp->num_output_ptr] = - (png_charp)png_malloc(png_ptr, (png_uint_32)png_ptr->zbuf_size); - png_memcpy(comp->output_ptr[comp->num_output_ptr], png_ptr->zbuf, - png_ptr->zbuf_size); - comp->num_output_ptr++; - - /* and reset the buffer pointers */ - png_ptr->zstream.avail_out = (uInt)png_ptr->zbuf_size; - png_ptr->zstream.next_out = png_ptr->zbuf; - } - } - else if (ret != Z_STREAM_END) - { - /* we got an error */ - if (png_ptr->zstream.msg != NULL) - png_error(png_ptr, png_ptr->zstream.msg); - else - png_error(png_ptr, "zlib error"); - } - } while (ret != Z_STREAM_END); - - /* text length is number of buffers plus last buffer */ - text_len = png_ptr->zbuf_size * comp->num_output_ptr; - if (png_ptr->zstream.avail_out < png_ptr->zbuf_size) - text_len += png_ptr->zbuf_size - (png_size_t)png_ptr->zstream.avail_out; - - return((int)text_len); -} - -/* ship the compressed text out via chunk writes */ -static void /* PRIVATE */ -png_write_compressed_data_out(png_structp png_ptr, compression_state *comp) -{ - int i; - - /* handle the no-compression case */ - if (comp->input) - { - png_write_chunk_data(png_ptr, (png_bytep)comp->input, - (png_size_t)comp->input_len); - return; - } - - /* write saved output buffers, if any */ - for (i = 0; i < comp->num_output_ptr; i++) - { - png_write_chunk_data(png_ptr,(png_bytep)comp->output_ptr[i], - png_ptr->zbuf_size); - png_free(png_ptr, comp->output_ptr[i]); - comp->output_ptr[i]=NULL; - } - if (comp->max_output_ptr != 0) - png_free(png_ptr, comp->output_ptr); - comp->output_ptr=NULL; - /* write anything left in zbuf */ - if (png_ptr->zstream.avail_out < (png_uint_32)png_ptr->zbuf_size) - png_write_chunk_data(png_ptr, png_ptr->zbuf, - png_ptr->zbuf_size - png_ptr->zstream.avail_out); - - /* reset zlib for another zTXt/iTXt or image data */ - deflateReset(&png_ptr->zstream); - png_ptr->zstream.data_type = Z_BINARY; -} -#endif - -/* Write the IHDR chunk, and update the png_struct with the necessary - * information. Note that the rest of this code depends upon this - * information being correct. - */ -void /* PRIVATE */ -png_write_IHDR(png_structp png_ptr, png_uint_32 width, png_uint_32 height, - int bit_depth, int color_type, int compression_type, int filter_type, - int interlace_type) -{ -#ifdef PNG_USE_LOCAL_ARRAYS - PNG_IHDR; -#endif - png_byte buf[13]; /* buffer to store the IHDR info */ - - png_debug(1, "in png_write_IHDR\n"); - /* Check that we have valid input data from the application info */ - switch (color_type) - { - case PNG_COLOR_TYPE_GRAY: - switch (bit_depth) - { - case 1: - case 2: - case 4: - case 8: - case 16: png_ptr->channels = 1; break; - default: png_error(png_ptr,"Invalid bit depth for grayscale image"); - } - break; - case PNG_COLOR_TYPE_RGB: - if (bit_depth != 8 && bit_depth != 16) - png_error(png_ptr, "Invalid bit depth for RGB image"); - png_ptr->channels = 3; - break; - case PNG_COLOR_TYPE_PALETTE: - switch (bit_depth) - { - case 1: - case 2: - case 4: - case 8: png_ptr->channels = 1; break; - default: png_error(png_ptr, "Invalid bit depth for paletted image"); - } - break; - case PNG_COLOR_TYPE_GRAY_ALPHA: - if (bit_depth != 8 && bit_depth != 16) - png_error(png_ptr, "Invalid bit depth for grayscale+alpha image"); - png_ptr->channels = 2; - break; - case PNG_COLOR_TYPE_RGB_ALPHA: - if (bit_depth != 8 && bit_depth != 16) - png_error(png_ptr, "Invalid bit depth for RGBA image"); - png_ptr->channels = 4; - break; - default: - png_error(png_ptr, "Invalid image color type specified"); - } - - if (compression_type != PNG_COMPRESSION_TYPE_BASE) - { - png_warning(png_ptr, "Invalid compression type specified"); - compression_type = PNG_COMPRESSION_TYPE_BASE; - } - - /* Write filter_method 64 (intrapixel differencing) only if - * 1. Libpng was compiled with PNG_MNG_FEATURES_SUPPORTED and - * 2. Libpng did not write a PNG signature (this filter_method is only - * used in PNG datastreams that are embedded in MNG datastreams) and - * 3. The application called png_permit_mng_features with a mask that - * included PNG_FLAG_MNG_FILTER_64 and - * 4. The filter_method is 64 and - * 5. The color_type is RGB or RGBA - */ - if ( -#if defined(PNG_MNG_FEATURES_SUPPORTED) - !((png_ptr->mng_features_permitted & PNG_FLAG_MNG_FILTER_64) && - ((png_ptr->mode&PNG_HAVE_PNG_SIGNATURE) == 0) && - (color_type == PNG_COLOR_TYPE_RGB || - color_type == PNG_COLOR_TYPE_RGB_ALPHA) && - (filter_type == PNG_INTRAPIXEL_DIFFERENCING)) && -#endif - filter_type != PNG_FILTER_TYPE_BASE) - { - png_warning(png_ptr, "Invalid filter type specified"); - filter_type = PNG_FILTER_TYPE_BASE; - } - -#ifdef PNG_WRITE_INTERLACING_SUPPORTED - if (interlace_type != PNG_INTERLACE_NONE && - interlace_type != PNG_INTERLACE_ADAM7) - { - png_warning(png_ptr, "Invalid interlace type specified"); - interlace_type = PNG_INTERLACE_ADAM7; - } -#else - interlace_type=PNG_INTERLACE_NONE; -#endif - - /* save off the relevent information */ - png_ptr->bit_depth = (png_byte)bit_depth; - png_ptr->color_type = (png_byte)color_type; - png_ptr->interlaced = (png_byte)interlace_type; -#if defined(PNG_MNG_FEATURES_SUPPORTED) - png_ptr->filter_type = (png_byte)filter_type; -#endif - png_ptr->compression_type = (png_byte)compression_type; - png_ptr->width = width; - png_ptr->height = height; - - png_ptr->pixel_depth = (png_byte)(bit_depth * png_ptr->channels); - png_ptr->rowbytes = PNG_ROWBYTES(png_ptr->pixel_depth, width); - /* set the usr info, so any transformations can modify it */ - png_ptr->usr_width = png_ptr->width; - png_ptr->usr_bit_depth = png_ptr->bit_depth; - png_ptr->usr_channels = png_ptr->channels; - - /* pack the header information into the buffer */ - png_save_uint_32(buf, width); - png_save_uint_32(buf + 4, height); - buf[8] = (png_byte)bit_depth; - buf[9] = (png_byte)color_type; - buf[10] = (png_byte)compression_type; - buf[11] = (png_byte)filter_type; - buf[12] = (png_byte)interlace_type; - - /* write the chunk */ - png_write_chunk(png_ptr, png_IHDR, buf, (png_size_t)13); - - /* initialize zlib with PNG info */ - png_ptr->zstream.zalloc = png_zalloc; - png_ptr->zstream.zfree = png_zfree; - png_ptr->zstream.opaque = (voidpf)png_ptr; - if (!(png_ptr->do_filter)) - { - if (png_ptr->color_type == PNG_COLOR_TYPE_PALETTE || - png_ptr->bit_depth < 8) - png_ptr->do_filter = PNG_FILTER_NONE; - else - png_ptr->do_filter = PNG_ALL_FILTERS; - } - if (!(png_ptr->flags & PNG_FLAG_ZLIB_CUSTOM_STRATEGY)) - { - if (png_ptr->do_filter != PNG_FILTER_NONE) - png_ptr->zlib_strategy = Z_FILTERED; - else - png_ptr->zlib_strategy = Z_DEFAULT_STRATEGY; - } - if (!(png_ptr->flags & PNG_FLAG_ZLIB_CUSTOM_LEVEL)) - png_ptr->zlib_level = Z_DEFAULT_COMPRESSION; - if (!(png_ptr->flags & PNG_FLAG_ZLIB_CUSTOM_MEM_LEVEL)) - png_ptr->zlib_mem_level = 8; - if (!(png_ptr->flags & PNG_FLAG_ZLIB_CUSTOM_WINDOW_BITS)) - png_ptr->zlib_window_bits = 15; - if (!(png_ptr->flags & PNG_FLAG_ZLIB_CUSTOM_METHOD)) - png_ptr->zlib_method = 8; - if (deflateInit2(&png_ptr->zstream, png_ptr->zlib_level, - png_ptr->zlib_method, png_ptr->zlib_window_bits, - png_ptr->zlib_mem_level, png_ptr->zlib_strategy) != Z_OK) - png_error(png_ptr, "zlib failed to initialize compressor"); - png_ptr->zstream.next_out = png_ptr->zbuf; - png_ptr->zstream.avail_out = (uInt)png_ptr->zbuf_size; - /* libpng is not interested in zstream.data_type */ - /* set it to a predefined value, to avoid its evaluation inside zlib */ - png_ptr->zstream.data_type = Z_BINARY; - - png_ptr->mode = PNG_HAVE_IHDR; -} - -/* write the palette. We are careful not to trust png_color to be in the - * correct order for PNG, so people can redefine it to any convenient - * structure. - */ -void /* PRIVATE */ -png_write_PLTE(png_structp png_ptr, png_colorp palette, png_uint_32 num_pal) -{ -#ifdef PNG_USE_LOCAL_ARRAYS - PNG_PLTE; -#endif - png_uint_32 i; - png_colorp pal_ptr; - png_byte buf[3]; - - png_debug(1, "in png_write_PLTE\n"); - if (( -#if defined(PNG_MNG_FEATURES_SUPPORTED) - !(png_ptr->mng_features_permitted & PNG_FLAG_MNG_EMPTY_PLTE) && -#endif - num_pal == 0) || num_pal > 256) - { - if (png_ptr->color_type == PNG_COLOR_TYPE_PALETTE) - { - png_error(png_ptr, "Invalid number of colors in palette"); - } - else - { - png_warning(png_ptr, "Invalid number of colors in palette"); - return; - } - } - - if (!(png_ptr->color_type&PNG_COLOR_MASK_COLOR)) - { - png_warning(png_ptr, - "Ignoring request to write a PLTE chunk in grayscale PNG"); - return; - } - - png_ptr->num_palette = (png_uint_16)num_pal; - png_debug1(3, "num_palette = %d\n", png_ptr->num_palette); - - png_write_chunk_start(png_ptr, png_PLTE, num_pal * 3); -#ifndef PNG_NO_POINTER_INDEXING - for (i = 0, pal_ptr = palette; i < num_pal; i++, pal_ptr++) - { - buf[0] = pal_ptr->red; - buf[1] = pal_ptr->green; - buf[2] = pal_ptr->blue; - png_write_chunk_data(png_ptr, buf, (png_size_t)3); - } -#else - /* This is a little slower but some buggy compilers need to do this instead */ - pal_ptr=palette; - for (i = 0; i < num_pal; i++) - { - buf[0] = pal_ptr[i].red; - buf[1] = pal_ptr[i].green; - buf[2] = pal_ptr[i].blue; - png_write_chunk_data(png_ptr, buf, (png_size_t)3); - } -#endif - png_write_chunk_end(png_ptr); - png_ptr->mode |= PNG_HAVE_PLTE; -} - -/* write an IDAT chunk */ -void /* PRIVATE */ -png_write_IDAT(png_structp png_ptr, png_bytep data, png_size_t length) -{ -#ifdef PNG_USE_LOCAL_ARRAYS - PNG_IDAT; -#endif - png_debug(1, "in png_write_IDAT\n"); - - /* Optimize the CMF field in the zlib stream. */ - /* This hack of the zlib stream is compliant to the stream specification. */ - if (!(png_ptr->mode & PNG_HAVE_IDAT) && - png_ptr->compression_type == PNG_COMPRESSION_TYPE_BASE) - { - unsigned int z_cmf = data[0]; /* zlib compression method and flags */ - if ((z_cmf & 0x0f) == 8 && (z_cmf & 0xf0) <= 0x70) - { - /* Avoid memory underflows and multiplication overflows. */ - /* The conditions below are practically always satisfied; - however, they still must be checked. */ - if (length >= 2 && - png_ptr->height < 16384 && png_ptr->width < 16384) - { - png_uint_32 uncompressed_idat_size = png_ptr->height * - ((png_ptr->width * - png_ptr->channels * png_ptr->bit_depth + 15) >> 3); - unsigned int z_cinfo = z_cmf >> 4; - unsigned int half_z_window_size = 1 << (z_cinfo + 7); - while (uncompressed_idat_size <= half_z_window_size && - half_z_window_size >= 256) - { - z_cinfo--; - half_z_window_size >>= 1; - } - z_cmf = (z_cmf & 0x0f) | (z_cinfo << 4); - if (data[0] != (png_byte)z_cmf) - { - data[0] = (png_byte)z_cmf; - data[1] &= 0xe0; - data[1] += (png_byte)(0x1f - ((z_cmf << 8) + data[1]) % 0x1f); - } - } - } - else - png_error(png_ptr, - "Invalid zlib compression method or flags in IDAT"); - } - - png_write_chunk(png_ptr, png_IDAT, data, length); - png_ptr->mode |= PNG_HAVE_IDAT; -} - -/* write an IEND chunk */ -void /* PRIVATE */ -png_write_IEND(png_structp png_ptr) -{ -#ifdef PNG_USE_LOCAL_ARRAYS - PNG_IEND; -#endif - png_debug(1, "in png_write_IEND\n"); - png_write_chunk(png_ptr, png_IEND, png_bytep_NULL, - (png_size_t)0); - png_ptr->mode |= PNG_HAVE_IEND; -} - -#if defined(PNG_WRITE_gAMA_SUPPORTED) -/* write a gAMA chunk */ -#ifdef PNG_FLOATING_POINT_SUPPORTED -void /* PRIVATE */ -png_write_gAMA(png_structp png_ptr, double file_gamma) -{ -#ifdef PNG_USE_LOCAL_ARRAYS - PNG_gAMA; -#endif - png_uint_32 igamma; - png_byte buf[4]; - - png_debug(1, "in png_write_gAMA\n"); - /* file_gamma is saved in 1/100,000ths */ - igamma = (png_uint_32)(file_gamma * 100000.0 + 0.5); - png_save_uint_32(buf, igamma); - png_write_chunk(png_ptr, png_gAMA, buf, (png_size_t)4); -} -#endif -#ifdef PNG_FIXED_POINT_SUPPORTED -void /* PRIVATE */ -png_write_gAMA_fixed(png_structp png_ptr, png_fixed_point file_gamma) -{ -#ifdef PNG_USE_LOCAL_ARRAYS - PNG_gAMA; -#endif - png_byte buf[4]; - - png_debug(1, "in png_write_gAMA\n"); - /* file_gamma is saved in 1/100,000ths */ - png_save_uint_32(buf, (png_uint_32)file_gamma); - png_write_chunk(png_ptr, png_gAMA, buf, (png_size_t)4); -} -#endif -#endif - -#if defined(PNG_WRITE_sRGB_SUPPORTED) -/* write a sRGB chunk */ -void /* PRIVATE */ -png_write_sRGB(png_structp png_ptr, int srgb_intent) -{ -#ifdef PNG_USE_LOCAL_ARRAYS - PNG_sRGB; -#endif - png_byte buf[1]; - - png_debug(1, "in png_write_sRGB\n"); - if(srgb_intent >= PNG_sRGB_INTENT_LAST) - png_warning(png_ptr, - "Invalid sRGB rendering intent specified"); - buf[0]=(png_byte)srgb_intent; - png_write_chunk(png_ptr, png_sRGB, buf, (png_size_t)1); -} -#endif - -#if defined(PNG_WRITE_iCCP_SUPPORTED) -/* write an iCCP chunk */ -void /* PRIVATE */ -png_write_iCCP(png_structp png_ptr, png_charp name, int compression_type, - png_charp profile, int profile_len) -{ -#ifdef PNG_USE_LOCAL_ARRAYS - PNG_iCCP; -#endif - png_size_t name_len; - png_charp new_name; - compression_state comp; - int embedded_profile_len = 0; - - png_debug(1, "in png_write_iCCP\n"); - - comp.num_output_ptr = 0; - comp.max_output_ptr = 0; - comp.output_ptr = NULL; - comp.input = NULL; - comp.input_len = 0; - - if (name == NULL || (name_len = png_check_keyword(png_ptr, name, - &new_name)) == 0) - { - png_warning(png_ptr, "Empty keyword in iCCP chunk"); - return; - } - - if (compression_type != PNG_COMPRESSION_TYPE_BASE) - png_warning(png_ptr, "Unknown compression type in iCCP chunk"); - - if (profile == NULL) - profile_len = 0; - - if (profile_len > 3) - embedded_profile_len = - ((*( (png_bytep)profile ))<<24) | - ((*( (png_bytep)profile+1))<<16) | - ((*( (png_bytep)profile+2))<< 8) | - ((*( (png_bytep)profile+3)) ); - - if (profile_len < embedded_profile_len) - { - png_warning(png_ptr, - "Embedded profile length too large in iCCP chunk"); - return; - } - - if (profile_len > embedded_profile_len) - { - png_warning(png_ptr, - "Truncating profile to actual length in iCCP chunk"); - profile_len = embedded_profile_len; - } - - if (profile_len) - profile_len = png_text_compress(png_ptr, profile, (png_size_t)profile_len, - PNG_COMPRESSION_TYPE_BASE, &comp); - - /* make sure we include the NULL after the name and the compression type */ - png_write_chunk_start(png_ptr, png_iCCP, - (png_uint_32)name_len+profile_len+2); - new_name[name_len+1]=0x00; - png_write_chunk_data(png_ptr, (png_bytep)new_name, name_len + 2); - - if (profile_len) - png_write_compressed_data_out(png_ptr, &comp); - - png_write_chunk_end(png_ptr); - png_free(png_ptr, new_name); -} -#endif - -#if defined(PNG_WRITE_sPLT_SUPPORTED) -/* write a sPLT chunk */ -void /* PRIVATE */ -png_write_sPLT(png_structp png_ptr, png_sPLT_tp spalette) -{ -#ifdef PNG_USE_LOCAL_ARRAYS - PNG_sPLT; -#endif - png_size_t name_len; - png_charp new_name; - png_byte entrybuf[10]; - int entry_size = (spalette->depth == 8 ? 6 : 10); - int palette_size = entry_size * spalette->nentries; - png_sPLT_entryp ep; -#ifdef PNG_NO_POINTER_INDEXING - int i; -#endif - - png_debug(1, "in png_write_sPLT\n"); - if (spalette->name == NULL || (name_len = png_check_keyword(png_ptr, - spalette->name, &new_name))==0) - { - png_warning(png_ptr, "Empty keyword in sPLT chunk"); - return; - } - - /* make sure we include the NULL after the name */ - png_write_chunk_start(png_ptr, png_sPLT, - (png_uint_32)(name_len + 2 + palette_size)); - png_write_chunk_data(png_ptr, (png_bytep)new_name, name_len + 1); - png_write_chunk_data(png_ptr, (png_bytep)&spalette->depth, 1); - - /* loop through each palette entry, writing appropriately */ -#ifndef PNG_NO_POINTER_INDEXING - for (ep = spalette->entries; epentries+spalette->nentries; ep++) - { - if (spalette->depth == 8) - { - entrybuf[0] = (png_byte)ep->red; - entrybuf[1] = (png_byte)ep->green; - entrybuf[2] = (png_byte)ep->blue; - entrybuf[3] = (png_byte)ep->alpha; - png_save_uint_16(entrybuf + 4, ep->frequency); - } - else - { - png_save_uint_16(entrybuf + 0, ep->red); - png_save_uint_16(entrybuf + 2, ep->green); - png_save_uint_16(entrybuf + 4, ep->blue); - png_save_uint_16(entrybuf + 6, ep->alpha); - png_save_uint_16(entrybuf + 8, ep->frequency); - } - png_write_chunk_data(png_ptr, entrybuf, (png_size_t)entry_size); - } -#else - ep=spalette->entries; - for (i=0; i>spalette->nentries; i++) - { - if (spalette->depth == 8) - { - entrybuf[0] = (png_byte)ep[i].red; - entrybuf[1] = (png_byte)ep[i].green; - entrybuf[2] = (png_byte)ep[i].blue; - entrybuf[3] = (png_byte)ep[i].alpha; - png_save_uint_16(entrybuf + 4, ep[i].frequency); - } - else - { - png_save_uint_16(entrybuf + 0, ep[i].red); - png_save_uint_16(entrybuf + 2, ep[i].green); - png_save_uint_16(entrybuf + 4, ep[i].blue); - png_save_uint_16(entrybuf + 6, ep[i].alpha); - png_save_uint_16(entrybuf + 8, ep[i].frequency); - } - png_write_chunk_data(png_ptr, entrybuf, entry_size); - } -#endif - - png_write_chunk_end(png_ptr); - png_free(png_ptr, new_name); -} -#endif - -#if defined(PNG_WRITE_sBIT_SUPPORTED) -/* write the sBIT chunk */ -void /* PRIVATE */ -png_write_sBIT(png_structp png_ptr, png_color_8p sbit, int color_type) -{ -#ifdef PNG_USE_LOCAL_ARRAYS - PNG_sBIT; -#endif - png_byte buf[4]; - png_size_t size; - - png_debug(1, "in png_write_sBIT\n"); - /* make sure we don't depend upon the order of PNG_COLOR_8 */ - if (color_type & PNG_COLOR_MASK_COLOR) - { - png_byte maxbits; - - maxbits = (png_byte)(color_type==PNG_COLOR_TYPE_PALETTE ? 8 : - png_ptr->usr_bit_depth); - if (sbit->red == 0 || sbit->red > maxbits || - sbit->green == 0 || sbit->green > maxbits || - sbit->blue == 0 || sbit->blue > maxbits) - { - png_warning(png_ptr, "Invalid sBIT depth specified"); - return; - } - buf[0] = sbit->red; - buf[1] = sbit->green; - buf[2] = sbit->blue; - size = 3; - } - else - { - if (sbit->gray == 0 || sbit->gray > png_ptr->usr_bit_depth) - { - png_warning(png_ptr, "Invalid sBIT depth specified"); - return; - } - buf[0] = sbit->gray; - size = 1; - } - - if (color_type & PNG_COLOR_MASK_ALPHA) - { - if (sbit->alpha == 0 || sbit->alpha > png_ptr->usr_bit_depth) - { - png_warning(png_ptr, "Invalid sBIT depth specified"); - return; - } - buf[size++] = sbit->alpha; - } - - png_write_chunk(png_ptr, png_sBIT, buf, size); -} -#endif - -#if defined(PNG_WRITE_cHRM_SUPPORTED) -/* write the cHRM chunk */ -#ifdef PNG_FLOATING_POINT_SUPPORTED -void /* PRIVATE */ -png_write_cHRM(png_structp png_ptr, double white_x, double white_y, - double red_x, double red_y, double green_x, double green_y, - double blue_x, double blue_y) -{ -#ifdef PNG_USE_LOCAL_ARRAYS - PNG_cHRM; -#endif - png_byte buf[32]; - png_uint_32 itemp; - - png_debug(1, "in png_write_cHRM\n"); - /* each value is saved in 1/100,000ths */ - if (white_x < 0 || white_x > 0.8 || white_y < 0 || white_y > 0.8 || - white_x + white_y > 1.0) - { - png_warning(png_ptr, "Invalid cHRM white point specified"); -#if !defined(PNG_NO_CONSOLE_IO) - fprintf(stderr,"white_x=%f, white_y=%f\n",white_x, white_y); -#endif - return; - } - itemp = (png_uint_32)(white_x * 100000.0 + 0.5); - png_save_uint_32(buf, itemp); - itemp = (png_uint_32)(white_y * 100000.0 + 0.5); - png_save_uint_32(buf + 4, itemp); - - if (red_x < 0 || red_y < 0 || red_x + red_y > 1.0) - { - png_warning(png_ptr, "Invalid cHRM red point specified"); - return; - } - itemp = (png_uint_32)(red_x * 100000.0 + 0.5); - png_save_uint_32(buf + 8, itemp); - itemp = (png_uint_32)(red_y * 100000.0 + 0.5); - png_save_uint_32(buf + 12, itemp); - - if (green_x < 0 || green_y < 0 || green_x + green_y > 1.0) - { - png_warning(png_ptr, "Invalid cHRM green point specified"); - return; - } - itemp = (png_uint_32)(green_x * 100000.0 + 0.5); - png_save_uint_32(buf + 16, itemp); - itemp = (png_uint_32)(green_y * 100000.0 + 0.5); - png_save_uint_32(buf + 20, itemp); - - if (blue_x < 0 || blue_y < 0 || blue_x + blue_y > 1.0) - { - png_warning(png_ptr, "Invalid cHRM blue point specified"); - return; - } - itemp = (png_uint_32)(blue_x * 100000.0 + 0.5); - png_save_uint_32(buf + 24, itemp); - itemp = (png_uint_32)(blue_y * 100000.0 + 0.5); - png_save_uint_32(buf + 28, itemp); - - png_write_chunk(png_ptr, png_cHRM, buf, (png_size_t)32); -} -#endif -#ifdef PNG_FIXED_POINT_SUPPORTED -void /* PRIVATE */ -png_write_cHRM_fixed(png_structp png_ptr, png_fixed_point white_x, - png_fixed_point white_y, png_fixed_point red_x, png_fixed_point red_y, - png_fixed_point green_x, png_fixed_point green_y, png_fixed_point blue_x, - png_fixed_point blue_y) -{ -#ifdef PNG_USE_LOCAL_ARRAYS - PNG_cHRM; -#endif - png_byte buf[32]; - - png_debug(1, "in png_write_cHRM\n"); - /* each value is saved in 1/100,000ths */ - if (white_x > 80000L || white_y > 80000L || white_x + white_y > 100000L) - { - png_warning(png_ptr, "Invalid fixed cHRM white point specified"); -#if !defined(PNG_NO_CONSOLE_IO) - fprintf(stderr,"white_x=%ld, white_y=%ld\n",white_x, white_y); -#endif - return; - } - png_save_uint_32(buf, (png_uint_32)white_x); - png_save_uint_32(buf + 4, (png_uint_32)white_y); - - if (red_x + red_y > 100000L) - { - png_warning(png_ptr, "Invalid cHRM fixed red point specified"); - return; - } - png_save_uint_32(buf + 8, (png_uint_32)red_x); - png_save_uint_32(buf + 12, (png_uint_32)red_y); - - if (green_x + green_y > 100000L) - { - png_warning(png_ptr, "Invalid fixed cHRM green point specified"); - return; - } - png_save_uint_32(buf + 16, (png_uint_32)green_x); - png_save_uint_32(buf + 20, (png_uint_32)green_y); - - if (blue_x + blue_y > 100000L) - { - png_warning(png_ptr, "Invalid fixed cHRM blue point specified"); - return; - } - png_save_uint_32(buf + 24, (png_uint_32)blue_x); - png_save_uint_32(buf + 28, (png_uint_32)blue_y); - - png_write_chunk(png_ptr, png_cHRM, buf, (png_size_t)32); -} -#endif -#endif - -#if defined(PNG_WRITE_tRNS_SUPPORTED) -/* write the tRNS chunk */ -void /* PRIVATE */ -png_write_tRNS(png_structp png_ptr, png_bytep trans, png_color_16p tran, - int num_trans, int color_type) -{ -#ifdef PNG_USE_LOCAL_ARRAYS - PNG_tRNS; -#endif - png_byte buf[6]; - - png_debug(1, "in png_write_tRNS\n"); - if (color_type == PNG_COLOR_TYPE_PALETTE) - { - if (num_trans <= 0 || num_trans > (int)png_ptr->num_palette) - { - png_warning(png_ptr,"Invalid number of transparent colors specified"); - return; - } - /* write the chunk out as it is */ - png_write_chunk(png_ptr, png_tRNS, trans, (png_size_t)num_trans); - } - else if (color_type == PNG_COLOR_TYPE_GRAY) - { - /* one 16 bit value */ - if(tran->gray >= (1 << png_ptr->bit_depth)) - { - png_warning(png_ptr, - "Ignoring attempt to write tRNS chunk out-of-range for bit_depth"); - return; - } - png_save_uint_16(buf, tran->gray); - png_write_chunk(png_ptr, png_tRNS, buf, (png_size_t)2); - } - else if (color_type == PNG_COLOR_TYPE_RGB) - { - /* three 16 bit values */ - png_save_uint_16(buf, tran->red); - png_save_uint_16(buf + 2, tran->green); - png_save_uint_16(buf + 4, tran->blue); - if(png_ptr->bit_depth == 8 && (buf[0] | buf[2] | buf[4])) - { - png_warning(png_ptr, - "Ignoring attempt to write 16-bit tRNS chunk when bit_depth is 8"); - return; - } - png_write_chunk(png_ptr, png_tRNS, buf, (png_size_t)6); - } - else - { - png_warning(png_ptr, "Can't write tRNS with an alpha channel"); - } -} -#endif - -#if defined(PNG_WRITE_bKGD_SUPPORTED) -/* write the background chunk */ -void /* PRIVATE */ -png_write_bKGD(png_structp png_ptr, png_color_16p back, int color_type) -{ -#ifdef PNG_USE_LOCAL_ARRAYS - PNG_bKGD; -#endif - png_byte buf[6]; - - png_debug(1, "in png_write_bKGD\n"); - if (color_type == PNG_COLOR_TYPE_PALETTE) - { - if ( -#if defined(PNG_MNG_FEATURES_SUPPORTED) - (png_ptr->num_palette || - (!(png_ptr->mng_features_permitted & PNG_FLAG_MNG_EMPTY_PLTE))) && -#endif - back->index > png_ptr->num_palette) - { - png_warning(png_ptr, "Invalid background palette index"); - return; - } - buf[0] = back->index; - png_write_chunk(png_ptr, png_bKGD, buf, (png_size_t)1); - } - else if (color_type & PNG_COLOR_MASK_COLOR) - { - png_save_uint_16(buf, back->red); - png_save_uint_16(buf + 2, back->green); - png_save_uint_16(buf + 4, back->blue); - if(png_ptr->bit_depth == 8 && (buf[0] | buf[2] | buf[4])) - { - png_warning(png_ptr, - "Ignoring attempt to write 16-bit bKGD chunk when bit_depth is 8"); - return; - } - png_write_chunk(png_ptr, png_bKGD, buf, (png_size_t)6); - } - else - { - if(back->gray >= (1 << png_ptr->bit_depth)) - { - png_warning(png_ptr, - "Ignoring attempt to write bKGD chunk out-of-range for bit_depth"); - return; - } - png_save_uint_16(buf, back->gray); - png_write_chunk(png_ptr, png_bKGD, buf, (png_size_t)2); - } -} -#endif - -#if defined(PNG_WRITE_hIST_SUPPORTED) -/* write the histogram */ -void /* PRIVATE */ -png_write_hIST(png_structp png_ptr, png_uint_16p hist, int num_hist) -{ -#ifdef PNG_USE_LOCAL_ARRAYS - PNG_hIST; -#endif - int i; - png_byte buf[3]; - - png_debug(1, "in png_write_hIST\n"); - if (num_hist > (int)png_ptr->num_palette) - { - png_debug2(3, "num_hist = %d, num_palette = %d\n", num_hist, - png_ptr->num_palette); - png_warning(png_ptr, "Invalid number of histogram entries specified"); - return; - } - - png_write_chunk_start(png_ptr, png_hIST, (png_uint_32)(num_hist * 2)); - for (i = 0; i < num_hist; i++) - { - png_save_uint_16(buf, hist[i]); - png_write_chunk_data(png_ptr, buf, (png_size_t)2); - } - png_write_chunk_end(png_ptr); -} -#endif - -#if defined(PNG_WRITE_TEXT_SUPPORTED) || defined(PNG_WRITE_pCAL_SUPPORTED) || \ - defined(PNG_WRITE_iCCP_SUPPORTED) || defined(PNG_WRITE_sPLT_SUPPORTED) -/* Check that the tEXt or zTXt keyword is valid per PNG 1.0 specification, - * and if invalid, correct the keyword rather than discarding the entire - * chunk. The PNG 1.0 specification requires keywords 1-79 characters in - * length, forbids leading or trailing whitespace, multiple internal spaces, - * and the non-break space (0x80) from ISO 8859-1. Returns keyword length. - * - * The new_key is allocated to hold the corrected keyword and must be freed - * by the calling routine. This avoids problems with trying to write to - * static keywords without having to have duplicate copies of the strings. - */ -png_size_t /* PRIVATE */ -png_check_keyword(png_structp png_ptr, png_charp key, png_charpp new_key) -{ - png_size_t key_len; - png_charp kp, dp; - int kflag; - int kwarn=0; - - png_debug(1, "in png_check_keyword\n"); - *new_key = NULL; - - if (key == NULL || (key_len = png_strlen(key)) == 0) - { - png_warning(png_ptr, "zero length keyword"); - return ((png_size_t)0); - } - - png_debug1(2, "Keyword to be checked is '%s'\n", key); - - *new_key = (png_charp)png_malloc_warn(png_ptr, (png_uint_32)(key_len + 2)); - if (*new_key == NULL) - { - png_warning(png_ptr, "Out of memory while procesing keyword"); - return ((png_size_t)0); - } - - /* Replace non-printing characters with a blank and print a warning */ - for (kp = key, dp = *new_key; *kp != '\0'; kp++, dp++) - { - if ((png_byte)*kp < 0x20 || - ((png_byte)*kp > 0x7E && (png_byte)*kp < 0xA1)) - { -#if !defined(PNG_NO_STDIO) && !defined(_WIN32_WCE) - char msg[40]; - - png_snprintf(msg, 40, - "invalid keyword character 0x%02X", (png_byte)*kp); - png_warning(png_ptr, msg); -#else - png_warning(png_ptr, "invalid character in keyword"); -#endif - *dp = ' '; - } - else - { - *dp = *kp; - } - } - *dp = '\0'; - - /* Remove any trailing white space. */ - kp = *new_key + key_len - 1; - if (*kp == ' ') - { - png_warning(png_ptr, "trailing spaces removed from keyword"); - - while (*kp == ' ') - { - *(kp--) = '\0'; - key_len--; - } - } - - /* Remove any leading white space. */ - kp = *new_key; - if (*kp == ' ') - { - png_warning(png_ptr, "leading spaces removed from keyword"); - - while (*kp == ' ') - { - kp++; - key_len--; - } - } - - png_debug1(2, "Checking for multiple internal spaces in '%s'\n", kp); - - /* Remove multiple internal spaces. */ - for (kflag = 0, dp = *new_key; *kp != '\0'; kp++) - { - if (*kp == ' ' && kflag == 0) - { - *(dp++) = *kp; - kflag = 1; - } - else if (*kp == ' ') - { - key_len--; - kwarn=1; - } - else - { - *(dp++) = *kp; - kflag = 0; - } - } - *dp = '\0'; - if(kwarn) - png_warning(png_ptr, "extra interior spaces removed from keyword"); - - if (key_len == 0) - { - png_free(png_ptr, *new_key); - *new_key=NULL; - png_warning(png_ptr, "Zero length keyword"); - } - - if (key_len > 79) - { - png_warning(png_ptr, "keyword length must be 1 - 79 characters"); - new_key[79] = '\0'; - key_len = 79; - } - - return (key_len); -} -#endif - -#if defined(PNG_WRITE_tEXt_SUPPORTED) -/* write a tEXt chunk */ -void /* PRIVATE */ -png_write_tEXt(png_structp png_ptr, png_charp key, png_charp text, - png_size_t text_len) -{ -#ifdef PNG_USE_LOCAL_ARRAYS - PNG_tEXt; -#endif - png_size_t key_len; - png_charp new_key; - - png_debug(1, "in png_write_tEXt\n"); - if (key == NULL || (key_len = png_check_keyword(png_ptr, key, &new_key))==0) - { - png_warning(png_ptr, "Empty keyword in tEXt chunk"); - return; - } - - if (text == NULL || *text == '\0') - text_len = 0; - else - text_len = png_strlen(text); - - /* make sure we include the 0 after the key */ - png_write_chunk_start(png_ptr, png_tEXt, (png_uint_32)key_len+text_len+1); - /* - * We leave it to the application to meet PNG-1.0 requirements on the - * contents of the text. PNG-1.0 through PNG-1.2 discourage the use of - * any non-Latin-1 characters except for NEWLINE. ISO PNG will forbid them. - * The NUL character is forbidden by PNG-1.0 through PNG-1.2 and ISO PNG. - */ - png_write_chunk_data(png_ptr, (png_bytep)new_key, key_len + 1); - if (text_len) - png_write_chunk_data(png_ptr, (png_bytep)text, text_len); - - png_write_chunk_end(png_ptr); - png_free(png_ptr, new_key); -} -#endif - -#if defined(PNG_WRITE_zTXt_SUPPORTED) -/* write a compressed text chunk */ -void /* PRIVATE */ -png_write_zTXt(png_structp png_ptr, png_charp key, png_charp text, - png_size_t text_len, int compression) -{ -#ifdef PNG_USE_LOCAL_ARRAYS - PNG_zTXt; -#endif - png_size_t key_len; - char buf[1]; - png_charp new_key; - compression_state comp; - - png_debug(1, "in png_write_zTXt\n"); - - comp.num_output_ptr = 0; - comp.max_output_ptr = 0; - comp.output_ptr = NULL; - comp.input = NULL; - comp.input_len = 0; - - if (key == NULL || (key_len = png_check_keyword(png_ptr, key, &new_key))==0) - { - png_warning(png_ptr, "Empty keyword in zTXt chunk"); - return; - } - - if (text == NULL || *text == '\0' || compression==PNG_TEXT_COMPRESSION_NONE) - { - png_write_tEXt(png_ptr, new_key, text, (png_size_t)0); - png_free(png_ptr, new_key); - return; - } - - text_len = png_strlen(text); - - /* compute the compressed data; do it now for the length */ - text_len = png_text_compress(png_ptr, text, text_len, compression, - &comp); - - /* write start of chunk */ - png_write_chunk_start(png_ptr, png_zTXt, (png_uint_32) - (key_len+text_len+2)); - /* write key */ - png_write_chunk_data(png_ptr, (png_bytep)new_key, key_len + 1); - png_free(png_ptr, new_key); - - buf[0] = (png_byte)compression; - /* write compression */ - png_write_chunk_data(png_ptr, (png_bytep)buf, (png_size_t)1); - /* write the compressed data */ - png_write_compressed_data_out(png_ptr, &comp); - - /* close the chunk */ - png_write_chunk_end(png_ptr); -} -#endif - -#if defined(PNG_WRITE_iTXt_SUPPORTED) -/* write an iTXt chunk */ -void /* PRIVATE */ -png_write_iTXt(png_structp png_ptr, int compression, png_charp key, - png_charp lang, png_charp lang_key, png_charp text) -{ -#ifdef PNG_USE_LOCAL_ARRAYS - PNG_iTXt; -#endif - png_size_t lang_len, key_len, lang_key_len, text_len; - png_charp new_lang, new_key; - png_byte cbuf[2]; - compression_state comp; - - png_debug(1, "in png_write_iTXt\n"); - - comp.num_output_ptr = 0; - comp.max_output_ptr = 0; - comp.output_ptr = NULL; - comp.input = NULL; - - if (key == NULL || (key_len = png_check_keyword(png_ptr, key, &new_key))==0) - { - png_warning(png_ptr, "Empty keyword in iTXt chunk"); - return; - } - if (lang == NULL || (lang_len = png_check_keyword(png_ptr, lang, &new_lang))==0) - { - png_warning(png_ptr, "Empty language field in iTXt chunk"); - new_lang = NULL; - lang_len = 0; - } - - if (lang_key == NULL) - lang_key_len = 0; - else - lang_key_len = png_strlen(lang_key); - - if (text == NULL) - text_len = 0; - else - text_len = png_strlen(text); - - /* compute the compressed data; do it now for the length */ - text_len = png_text_compress(png_ptr, text, text_len, compression-2, - &comp); - - - /* make sure we include the compression flag, the compression byte, - * and the NULs after the key, lang, and lang_key parts */ - - png_write_chunk_start(png_ptr, png_iTXt, - (png_uint_32)( - 5 /* comp byte, comp flag, terminators for key, lang and lang_key */ - + key_len - + lang_len - + lang_key_len - + text_len)); - - /* - * We leave it to the application to meet PNG-1.0 requirements on the - * contents of the text. PNG-1.0 through PNG-1.2 discourage the use of - * any non-Latin-1 characters except for NEWLINE. ISO PNG will forbid them. - * The NUL character is forbidden by PNG-1.0 through PNG-1.2 and ISO PNG. - */ - png_write_chunk_data(png_ptr, (png_bytep)new_key, key_len + 1); - - /* set the compression flag */ - if (compression == PNG_ITXT_COMPRESSION_NONE || \ - compression == PNG_TEXT_COMPRESSION_NONE) - cbuf[0] = 0; - else /* compression == PNG_ITXT_COMPRESSION_zTXt */ - cbuf[0] = 1; - /* set the compression method */ - cbuf[1] = 0; - png_write_chunk_data(png_ptr, cbuf, 2); - - cbuf[0] = 0; - png_write_chunk_data(png_ptr, (new_lang ? (png_bytep)new_lang : cbuf), lang_len + 1); - png_write_chunk_data(png_ptr, (lang_key ? (png_bytep)lang_key : cbuf), lang_key_len + 1); - png_write_compressed_data_out(png_ptr, &comp); - - png_write_chunk_end(png_ptr); - png_free(png_ptr, new_key); - if (new_lang) - png_free(png_ptr, new_lang); -} -#endif - -#if defined(PNG_WRITE_oFFs_SUPPORTED) -/* write the oFFs chunk */ -void /* PRIVATE */ -png_write_oFFs(png_structp png_ptr, png_int_32 x_offset, png_int_32 y_offset, - int unit_type) -{ -#ifdef PNG_USE_LOCAL_ARRAYS - PNG_oFFs; -#endif - png_byte buf[9]; - - png_debug(1, "in png_write_oFFs\n"); - if (unit_type >= PNG_OFFSET_LAST) - png_warning(png_ptr, "Unrecognized unit type for oFFs chunk"); - - png_save_int_32(buf, x_offset); - png_save_int_32(buf + 4, y_offset); - buf[8] = (png_byte)unit_type; - - png_write_chunk(png_ptr, png_oFFs, buf, (png_size_t)9); -} -#endif -#if defined(PNG_WRITE_pCAL_SUPPORTED) -/* write the pCAL chunk (described in the PNG extensions document) */ -void /* PRIVATE */ -png_write_pCAL(png_structp png_ptr, png_charp purpose, png_int_32 X0, - png_int_32 X1, int type, int nparams, png_charp units, png_charpp params) -{ -#ifdef PNG_USE_LOCAL_ARRAYS - PNG_pCAL; -#endif - png_size_t purpose_len, units_len, total_len; - png_uint_32p params_len; - png_byte buf[10]; - png_charp new_purpose; - int i; - - png_debug1(1, "in png_write_pCAL (%d parameters)\n", nparams); - if (type >= PNG_EQUATION_LAST) - png_warning(png_ptr, "Unrecognized equation type for pCAL chunk"); - - purpose_len = png_check_keyword(png_ptr, purpose, &new_purpose) + 1; - png_debug1(3, "pCAL purpose length = %d\n", (int)purpose_len); - units_len = png_strlen(units) + (nparams == 0 ? 0 : 1); - png_debug1(3, "pCAL units length = %d\n", (int)units_len); - total_len = purpose_len + units_len + 10; - - params_len = (png_uint_32p)png_malloc(png_ptr, (png_uint_32)(nparams - *png_sizeof(png_uint_32))); - - /* Find the length of each parameter, making sure we don't count the - null terminator for the last parameter. */ - for (i = 0; i < nparams; i++) - { - params_len[i] = png_strlen(params[i]) + (i == nparams - 1 ? 0 : 1); - png_debug2(3, "pCAL parameter %d length = %lu\n", i, params_len[i]); - total_len += (png_size_t)params_len[i]; - } - - png_debug1(3, "pCAL total length = %d\n", (int)total_len); - png_write_chunk_start(png_ptr, png_pCAL, (png_uint_32)total_len); - png_write_chunk_data(png_ptr, (png_bytep)new_purpose, purpose_len); - png_save_int_32(buf, X0); - png_save_int_32(buf + 4, X1); - buf[8] = (png_byte)type; - buf[9] = (png_byte)nparams; - png_write_chunk_data(png_ptr, buf, (png_size_t)10); - png_write_chunk_data(png_ptr, (png_bytep)units, (png_size_t)units_len); - - png_free(png_ptr, new_purpose); - - for (i = 0; i < nparams; i++) - { - png_write_chunk_data(png_ptr, (png_bytep)params[i], - (png_size_t)params_len[i]); - } - - png_free(png_ptr, params_len); - png_write_chunk_end(png_ptr); -} -#endif - -#if defined(PNG_WRITE_sCAL_SUPPORTED) -/* write the sCAL chunk */ -#if defined(PNG_FLOATING_POINT_SUPPORTED) && !defined(PNG_NO_STDIO) -void /* PRIVATE */ -png_write_sCAL(png_structp png_ptr, int unit, double width, double height) -{ -#ifdef PNG_USE_LOCAL_ARRAYS - PNG_sCAL; -#endif - char buf[64]; - png_size_t total_len; - - png_debug(1, "in png_write_sCAL\n"); - - buf[0] = (char)unit; -#if defined(_WIN32_WCE) -/* sprintf() function is not supported on WindowsCE */ - { - wchar_t wc_buf[32]; - size_t wc_len; - swprintf(wc_buf, TEXT("%12.12e"), width); - wc_len = wcslen(wc_buf); - WideCharToMultiByte(CP_ACP, 0, wc_buf, -1, buf + 1, wc_len, NULL, NULL); - total_len = wc_len + 2; - swprintf(wc_buf, TEXT("%12.12e"), height); - wc_len = wcslen(wc_buf); - WideCharToMultiByte(CP_ACP, 0, wc_buf, -1, buf + total_len, wc_len, - NULL, NULL); - total_len += wc_len; - } -#else - png_snprintf(buf + 1, 63, "%12.12e", width); - total_len = 1 + png_strlen(buf + 1) + 1; - png_snprintf(buf + total_len, 64-total_len, "%12.12e", height); - total_len += png_strlen(buf + total_len); -#endif - - png_debug1(3, "sCAL total length = %u\n", (unsigned int)total_len); - png_write_chunk(png_ptr, png_sCAL, (png_bytep)buf, total_len); -} -#else -#ifdef PNG_FIXED_POINT_SUPPORTED -void /* PRIVATE */ -png_write_sCAL_s(png_structp png_ptr, int unit, png_charp width, - png_charp height) -{ -#ifdef PNG_USE_LOCAL_ARRAYS - PNG_sCAL; -#endif - png_byte buf[64]; - png_size_t wlen, hlen, total_len; - - png_debug(1, "in png_write_sCAL_s\n"); - - wlen = png_strlen(width); - hlen = png_strlen(height); - total_len = wlen + hlen + 2; - if (total_len > 64) - { - png_warning(png_ptr, "Can't write sCAL (buffer too small)"); - return; - } - - buf[0] = (png_byte)unit; - png_memcpy(buf + 1, width, wlen + 1); /* append the '\0' here */ - png_memcpy(buf + wlen + 2, height, hlen); /* do NOT append the '\0' here */ - - png_debug1(3, "sCAL total length = %u\n", (unsigned int)total_len); - png_write_chunk(png_ptr, png_sCAL, buf, total_len); -} -#endif -#endif -#endif - -#if defined(PNG_WRITE_pHYs_SUPPORTED) -/* write the pHYs chunk */ -void /* PRIVATE */ -png_write_pHYs(png_structp png_ptr, png_uint_32 x_pixels_per_unit, - png_uint_32 y_pixels_per_unit, - int unit_type) -{ -#ifdef PNG_USE_LOCAL_ARRAYS - PNG_pHYs; -#endif - png_byte buf[9]; - - png_debug(1, "in png_write_pHYs\n"); - if (unit_type >= PNG_RESOLUTION_LAST) - png_warning(png_ptr, "Unrecognized unit type for pHYs chunk"); - - png_save_uint_32(buf, x_pixels_per_unit); - png_save_uint_32(buf + 4, y_pixels_per_unit); - buf[8] = (png_byte)unit_type; - - png_write_chunk(png_ptr, png_pHYs, buf, (png_size_t)9); -} -#endif - -#if defined(PNG_WRITE_tIME_SUPPORTED) -/* Write the tIME chunk. Use either png_convert_from_struct_tm() - * or png_convert_from_time_t(), or fill in the structure yourself. - */ -void /* PRIVATE */ -png_write_tIME(png_structp png_ptr, png_timep mod_time) -{ -#ifdef PNG_USE_LOCAL_ARRAYS - PNG_tIME; -#endif - png_byte buf[7]; - - png_debug(1, "in png_write_tIME\n"); - if (mod_time->month > 12 || mod_time->month < 1 || - mod_time->day > 31 || mod_time->day < 1 || - mod_time->hour > 23 || mod_time->second > 60) - { - png_warning(png_ptr, "Invalid time specified for tIME chunk"); - return; - } - - png_save_uint_16(buf, mod_time->year); - buf[2] = mod_time->month; - buf[3] = mod_time->day; - buf[4] = mod_time->hour; - buf[5] = mod_time->minute; - buf[6] = mod_time->second; - - png_write_chunk(png_ptr, png_tIME, buf, (png_size_t)7); -} -#endif - -/* initializes the row writing capability of libpng */ -void /* PRIVATE */ -png_write_start_row(png_structp png_ptr) -{ -#ifdef PNG_WRITE_INTERLACING_SUPPORTED -#ifdef PNG_USE_LOCAL_ARRAYS - /* arrays to facilitate easy interlacing - use pass (0 - 6) as index */ - - /* start of interlace block */ - int png_pass_start[7] = {0, 4, 0, 2, 0, 1, 0}; - - /* offset to next interlace block */ - int png_pass_inc[7] = {8, 8, 4, 4, 2, 2, 1}; - - /* start of interlace block in the y direction */ - int png_pass_ystart[7] = {0, 0, 4, 0, 2, 0, 1}; - - /* offset to next interlace block in the y direction */ - int png_pass_yinc[7] = {8, 8, 8, 4, 4, 2, 2}; -#endif -#endif - - png_size_t buf_size; - - png_debug(1, "in png_write_start_row\n"); - buf_size = (png_size_t)(PNG_ROWBYTES( - png_ptr->usr_channels*png_ptr->usr_bit_depth,png_ptr->width)+1); - - /* set up row buffer */ - png_ptr->row_buf = (png_bytep)png_malloc(png_ptr, (png_uint_32)buf_size); - png_ptr->row_buf[0] = PNG_FILTER_VALUE_NONE; - -#ifndef PNG_NO_WRITE_FILTERING - /* set up filtering buffer, if using this filter */ - if (png_ptr->do_filter & PNG_FILTER_SUB) - { - png_ptr->sub_row = (png_bytep)png_malloc(png_ptr, - (png_ptr->rowbytes + 1)); - png_ptr->sub_row[0] = PNG_FILTER_VALUE_SUB; - } - - /* We only need to keep the previous row if we are using one of these. */ - if (png_ptr->do_filter & (PNG_FILTER_AVG | PNG_FILTER_UP | PNG_FILTER_PAETH)) - { - /* set up previous row buffer */ - png_ptr->prev_row = (png_bytep)png_malloc(png_ptr, (png_uint_32)buf_size); - png_memset(png_ptr->prev_row, 0, buf_size); - - if (png_ptr->do_filter & PNG_FILTER_UP) - { - png_ptr->up_row = (png_bytep)png_malloc(png_ptr, - (png_ptr->rowbytes + 1)); - png_ptr->up_row[0] = PNG_FILTER_VALUE_UP; - } - - if (png_ptr->do_filter & PNG_FILTER_AVG) - { - png_ptr->avg_row = (png_bytep)png_malloc(png_ptr, - (png_ptr->rowbytes + 1)); - png_ptr->avg_row[0] = PNG_FILTER_VALUE_AVG; - } - - if (png_ptr->do_filter & PNG_FILTER_PAETH) - { - png_ptr->paeth_row = (png_bytep)png_malloc(png_ptr, - (png_ptr->rowbytes + 1)); - png_ptr->paeth_row[0] = PNG_FILTER_VALUE_PAETH; - } -#endif /* PNG_NO_WRITE_FILTERING */ - } - -#ifdef PNG_WRITE_INTERLACING_SUPPORTED - /* if interlaced, we need to set up width and height of pass */ - if (png_ptr->interlaced) - { - if (!(png_ptr->transformations & PNG_INTERLACE)) - { - png_ptr->num_rows = (png_ptr->height + png_pass_yinc[0] - 1 - - png_pass_ystart[0]) / png_pass_yinc[0]; - png_ptr->usr_width = (png_ptr->width + png_pass_inc[0] - 1 - - png_pass_start[0]) / png_pass_inc[0]; - } - else - { - png_ptr->num_rows = png_ptr->height; - png_ptr->usr_width = png_ptr->width; - } - } - else -#endif - { - png_ptr->num_rows = png_ptr->height; - png_ptr->usr_width = png_ptr->width; - } - png_ptr->zstream.avail_out = (uInt)png_ptr->zbuf_size; - png_ptr->zstream.next_out = png_ptr->zbuf; -} - -/* Internal use only. Called when finished processing a row of data. */ -void /* PRIVATE */ -png_write_finish_row(png_structp png_ptr) -{ -#ifdef PNG_WRITE_INTERLACING_SUPPORTED -#ifdef PNG_USE_LOCAL_ARRAYS - /* arrays to facilitate easy interlacing - use pass (0 - 6) as index */ - - /* start of interlace block */ - int png_pass_start[7] = {0, 4, 0, 2, 0, 1, 0}; - - /* offset to next interlace block */ - int png_pass_inc[7] = {8, 8, 4, 4, 2, 2, 1}; - - /* start of interlace block in the y direction */ - int png_pass_ystart[7] = {0, 0, 4, 0, 2, 0, 1}; - - /* offset to next interlace block in the y direction */ - int png_pass_yinc[7] = {8, 8, 8, 4, 4, 2, 2}; -#endif -#endif - - int ret; - - png_debug(1, "in png_write_finish_row\n"); - /* next row */ - png_ptr->row_number++; - - /* see if we are done */ - if (png_ptr->row_number < png_ptr->num_rows) - return; - -#ifdef PNG_WRITE_INTERLACING_SUPPORTED - /* if interlaced, go to next pass */ - if (png_ptr->interlaced) - { - png_ptr->row_number = 0; - if (png_ptr->transformations & PNG_INTERLACE) - { - png_ptr->pass++; - } - else - { - /* loop until we find a non-zero width or height pass */ - do - { - png_ptr->pass++; - if (png_ptr->pass >= 7) - break; - png_ptr->usr_width = (png_ptr->width + - png_pass_inc[png_ptr->pass] - 1 - - png_pass_start[png_ptr->pass]) / - png_pass_inc[png_ptr->pass]; - png_ptr->num_rows = (png_ptr->height + - png_pass_yinc[png_ptr->pass] - 1 - - png_pass_ystart[png_ptr->pass]) / - png_pass_yinc[png_ptr->pass]; - if (png_ptr->transformations & PNG_INTERLACE) - break; - } while (png_ptr->usr_width == 0 || png_ptr->num_rows == 0); - - } - - /* reset the row above the image for the next pass */ - if (png_ptr->pass < 7) - { - if (png_ptr->prev_row != NULL) - png_memset(png_ptr->prev_row, 0, - (png_size_t)(PNG_ROWBYTES(png_ptr->usr_channels* - png_ptr->usr_bit_depth,png_ptr->width))+1); - return; - } - } -#endif - - /* if we get here, we've just written the last row, so we need - to flush the compressor */ - do - { - /* tell the compressor we are done */ - ret = deflate(&png_ptr->zstream, Z_FINISH); - /* check for an error */ - if (ret == Z_OK) - { - /* check to see if we need more room */ - if (!(png_ptr->zstream.avail_out)) - { - png_write_IDAT(png_ptr, png_ptr->zbuf, png_ptr->zbuf_size); - png_ptr->zstream.next_out = png_ptr->zbuf; - png_ptr->zstream.avail_out = (uInt)png_ptr->zbuf_size; - } - } - else if (ret != Z_STREAM_END) - { - if (png_ptr->zstream.msg != NULL) - png_error(png_ptr, png_ptr->zstream.msg); - else - png_error(png_ptr, "zlib error"); - } - } while (ret != Z_STREAM_END); - - /* write any extra space */ - if (png_ptr->zstream.avail_out < png_ptr->zbuf_size) - { - png_write_IDAT(png_ptr, png_ptr->zbuf, png_ptr->zbuf_size - - png_ptr->zstream.avail_out); - } - - deflateReset(&png_ptr->zstream); - png_ptr->zstream.data_type = Z_BINARY; -} - -#if defined(PNG_WRITE_INTERLACING_SUPPORTED) -/* Pick out the correct pixels for the interlace pass. - * The basic idea here is to go through the row with a source - * pointer and a destination pointer (sp and dp), and copy the - * correct pixels for the pass. As the row gets compacted, - * sp will always be >= dp, so we should never overwrite anything. - * See the default: case for the easiest code to understand. - */ -void /* PRIVATE */ -png_do_write_interlace(png_row_infop row_info, png_bytep row, int pass) -{ -#ifdef PNG_USE_LOCAL_ARRAYS - /* arrays to facilitate easy interlacing - use pass (0 - 6) as index */ - - /* start of interlace block */ - int png_pass_start[7] = {0, 4, 0, 2, 0, 1, 0}; - - /* offset to next interlace block */ - int png_pass_inc[7] = {8, 8, 4, 4, 2, 2, 1}; -#endif - - png_debug(1, "in png_do_write_interlace\n"); - /* we don't have to do anything on the last pass (6) */ -#if defined(PNG_USELESS_TESTS_SUPPORTED) - if (row != NULL && row_info != NULL && pass < 6) -#else - if (pass < 6) -#endif - { - /* each pixel depth is handled separately */ - switch (row_info->pixel_depth) - { - case 1: - { - png_bytep sp; - png_bytep dp; - int shift; - int d; - int value; - png_uint_32 i; - png_uint_32 row_width = row_info->width; - - dp = row; - d = 0; - shift = 7; - for (i = png_pass_start[pass]; i < row_width; - i += png_pass_inc[pass]) - { - sp = row + (png_size_t)(i >> 3); - value = (int)(*sp >> (7 - (int)(i & 0x07))) & 0x01; - d |= (value << shift); - - if (shift == 0) - { - shift = 7; - *dp++ = (png_byte)d; - d = 0; - } - else - shift--; - - } - if (shift != 7) - *dp = (png_byte)d; - break; - } - case 2: - { - png_bytep sp; - png_bytep dp; - int shift; - int d; - int value; - png_uint_32 i; - png_uint_32 row_width = row_info->width; - - dp = row; - shift = 6; - d = 0; - for (i = png_pass_start[pass]; i < row_width; - i += png_pass_inc[pass]) - { - sp = row + (png_size_t)(i >> 2); - value = (*sp >> ((3 - (int)(i & 0x03)) << 1)) & 0x03; - d |= (value << shift); - - if (shift == 0) - { - shift = 6; - *dp++ = (png_byte)d; - d = 0; - } - else - shift -= 2; - } - if (shift != 6) - *dp = (png_byte)d; - break; - } - case 4: - { - png_bytep sp; - png_bytep dp; - int shift; - int d; - int value; - png_uint_32 i; - png_uint_32 row_width = row_info->width; - - dp = row; - shift = 4; - d = 0; - for (i = png_pass_start[pass]; i < row_width; - i += png_pass_inc[pass]) - { - sp = row + (png_size_t)(i >> 1); - value = (*sp >> ((1 - (int)(i & 0x01)) << 2)) & 0x0f; - d |= (value << shift); - - if (shift == 0) - { - shift = 4; - *dp++ = (png_byte)d; - d = 0; - } - else - shift -= 4; - } - if (shift != 4) - *dp = (png_byte)d; - break; - } - default: - { - png_bytep sp; - png_bytep dp; - png_uint_32 i; - png_uint_32 row_width = row_info->width; - png_size_t pixel_bytes; - - /* start at the beginning */ - dp = row; - /* find out how many bytes each pixel takes up */ - pixel_bytes = (row_info->pixel_depth >> 3); - /* loop through the row, only looking at the pixels that - matter */ - for (i = png_pass_start[pass]; i < row_width; - i += png_pass_inc[pass]) - { - /* find out where the original pixel is */ - sp = row + (png_size_t)i * pixel_bytes; - /* move the pixel */ - if (dp != sp) - png_memcpy(dp, sp, pixel_bytes); - /* next pixel */ - dp += pixel_bytes; - } - break; - } - } - /* set new row width */ - row_info->width = (row_info->width + - png_pass_inc[pass] - 1 - - png_pass_start[pass]) / - png_pass_inc[pass]; - row_info->rowbytes = PNG_ROWBYTES(row_info->pixel_depth, - row_info->width); - } -} -#endif - -/* This filters the row, chooses which filter to use, if it has not already - * been specified by the application, and then writes the row out with the - * chosen filter. - */ -#define PNG_MAXSUM (((png_uint_32)(-1)) >> 1) -#define PNG_HISHIFT 10 -#define PNG_LOMASK ((png_uint_32)0xffffL) -#define PNG_HIMASK ((png_uint_32)(~PNG_LOMASK >> PNG_HISHIFT)) -void /* PRIVATE */ -png_write_find_filter(png_structp png_ptr, png_row_infop row_info) -{ - png_bytep best_row; -#ifndef PNG_NO_WRITE_FILTER - png_bytep prev_row, row_buf; - png_uint_32 mins, bpp; - png_byte filter_to_do = png_ptr->do_filter; - png_uint_32 row_bytes = row_info->rowbytes; -#if defined(PNG_WRITE_WEIGHTED_FILTER_SUPPORTED) - int num_p_filters = (int)png_ptr->num_prev_filters; -#endif - - png_debug(1, "in png_write_find_filter\n"); - /* find out how many bytes offset each pixel is */ - bpp = (row_info->pixel_depth + 7) >> 3; - - prev_row = png_ptr->prev_row; -#endif - best_row = png_ptr->row_buf; -#ifndef PNG_NO_WRITE_FILTER - row_buf = best_row; - mins = PNG_MAXSUM; - - /* The prediction method we use is to find which method provides the - * smallest value when summing the absolute values of the distances - * from zero, using anything >= 128 as negative numbers. This is known - * as the "minimum sum of absolute differences" heuristic. Other - * heuristics are the "weighted minimum sum of absolute differences" - * (experimental and can in theory improve compression), and the "zlib - * predictive" method (not implemented yet), which does test compressions - * of lines using different filter methods, and then chooses the - * (series of) filter(s) that give minimum compressed data size (VERY - * computationally expensive). - * - * GRR 980525: consider also - * (1) minimum sum of absolute differences from running average (i.e., - * keep running sum of non-absolute differences & count of bytes) - * [track dispersion, too? restart average if dispersion too large?] - * (1b) minimum sum of absolute differences from sliding average, probably - * with window size <= deflate window (usually 32K) - * (2) minimum sum of squared differences from zero or running average - * (i.e., ~ root-mean-square approach) - */ - - - /* We don't need to test the 'no filter' case if this is the only filter - * that has been chosen, as it doesn't actually do anything to the data. - */ - if ((filter_to_do & PNG_FILTER_NONE) && - filter_to_do != PNG_FILTER_NONE) - { - png_bytep rp; - png_uint_32 sum = 0; - png_uint_32 i; - int v; - - for (i = 0, rp = row_buf + 1; i < row_bytes; i++, rp++) - { - v = *rp; - sum += (v < 128) ? v : 256 - v; - } - -#if defined(PNG_WRITE_WEIGHTED_FILTER_SUPPORTED) - if (png_ptr->heuristic_method == PNG_FILTER_HEURISTIC_WEIGHTED) - { - png_uint_32 sumhi, sumlo; - int j; - sumlo = sum & PNG_LOMASK; - sumhi = (sum >> PNG_HISHIFT) & PNG_HIMASK; /* Gives us some footroom */ - - /* Reduce the sum if we match any of the previous rows */ - for (j = 0; j < num_p_filters; j++) - { - if (png_ptr->prev_filters[j] == PNG_FILTER_VALUE_NONE) - { - sumlo = (sumlo * png_ptr->filter_weights[j]) >> - PNG_WEIGHT_SHIFT; - sumhi = (sumhi * png_ptr->filter_weights[j]) >> - PNG_WEIGHT_SHIFT; - } - } - - /* Factor in the cost of this filter (this is here for completeness, - * but it makes no sense to have a "cost" for the NONE filter, as - * it has the minimum possible computational cost - none). - */ - sumlo = (sumlo * png_ptr->filter_costs[PNG_FILTER_VALUE_NONE]) >> - PNG_COST_SHIFT; - sumhi = (sumhi * png_ptr->filter_costs[PNG_FILTER_VALUE_NONE]) >> - PNG_COST_SHIFT; - - if (sumhi > PNG_HIMASK) - sum = PNG_MAXSUM; - else - sum = (sumhi << PNG_HISHIFT) + sumlo; - } -#endif - mins = sum; - } - - /* sub filter */ - if (filter_to_do == PNG_FILTER_SUB) - /* it's the only filter so no testing is needed */ - { - png_bytep rp, lp, dp; - png_uint_32 i; - for (i = 0, rp = row_buf + 1, dp = png_ptr->sub_row + 1; i < bpp; - i++, rp++, dp++) - { - *dp = *rp; - } - for (lp = row_buf + 1; i < row_bytes; - i++, rp++, lp++, dp++) - { - *dp = (png_byte)(((int)*rp - (int)*lp) & 0xff); - } - best_row = png_ptr->sub_row; - } - - else if (filter_to_do & PNG_FILTER_SUB) - { - png_bytep rp, dp, lp; - png_uint_32 sum = 0, lmins = mins; - png_uint_32 i; - int v; - -#if defined(PNG_WRITE_WEIGHTED_FILTER_SUPPORTED) - /* We temporarily increase the "minimum sum" by the factor we - * would reduce the sum of this filter, so that we can do the - * early exit comparison without scaling the sum each time. - */ - if (png_ptr->heuristic_method == PNG_FILTER_HEURISTIC_WEIGHTED) - { - int j; - png_uint_32 lmhi, lmlo; - lmlo = lmins & PNG_LOMASK; - lmhi = (lmins >> PNG_HISHIFT) & PNG_HIMASK; - - for (j = 0; j < num_p_filters; j++) - { - if (png_ptr->prev_filters[j] == PNG_FILTER_VALUE_SUB) - { - lmlo = (lmlo * png_ptr->inv_filter_weights[j]) >> - PNG_WEIGHT_SHIFT; - lmhi = (lmhi * png_ptr->inv_filter_weights[j]) >> - PNG_WEIGHT_SHIFT; - } - } - - lmlo = (lmlo * png_ptr->inv_filter_costs[PNG_FILTER_VALUE_SUB]) >> - PNG_COST_SHIFT; - lmhi = (lmhi * png_ptr->inv_filter_costs[PNG_FILTER_VALUE_SUB]) >> - PNG_COST_SHIFT; - - if (lmhi > PNG_HIMASK) - lmins = PNG_MAXSUM; - else - lmins = (lmhi << PNG_HISHIFT) + lmlo; - } -#endif - - for (i = 0, rp = row_buf + 1, dp = png_ptr->sub_row + 1; i < bpp; - i++, rp++, dp++) - { - v = *dp = *rp; - - sum += (v < 128) ? v : 256 - v; - } - for (lp = row_buf + 1; i < row_bytes; - i++, rp++, lp++, dp++) - { - v = *dp = (png_byte)(((int)*rp - (int)*lp) & 0xff); - - sum += (v < 128) ? v : 256 - v; - - if (sum > lmins) /* We are already worse, don't continue. */ - break; - } - -#if defined(PNG_WRITE_WEIGHTED_FILTER_SUPPORTED) - if (png_ptr->heuristic_method == PNG_FILTER_HEURISTIC_WEIGHTED) - { - int j; - png_uint_32 sumhi, sumlo; - sumlo = sum & PNG_LOMASK; - sumhi = (sum >> PNG_HISHIFT) & PNG_HIMASK; - - for (j = 0; j < num_p_filters; j++) - { - if (png_ptr->prev_filters[j] == PNG_FILTER_VALUE_SUB) - { - sumlo = (sumlo * png_ptr->inv_filter_weights[j]) >> - PNG_WEIGHT_SHIFT; - sumhi = (sumhi * png_ptr->inv_filter_weights[j]) >> - PNG_WEIGHT_SHIFT; - } - } - - sumlo = (sumlo * png_ptr->inv_filter_costs[PNG_FILTER_VALUE_SUB]) >> - PNG_COST_SHIFT; - sumhi = (sumhi * png_ptr->inv_filter_costs[PNG_FILTER_VALUE_SUB]) >> - PNG_COST_SHIFT; - - if (sumhi > PNG_HIMASK) - sum = PNG_MAXSUM; - else - sum = (sumhi << PNG_HISHIFT) + sumlo; - } -#endif - - if (sum < mins) - { - mins = sum; - best_row = png_ptr->sub_row; - } - } - - /* up filter */ - if (filter_to_do == PNG_FILTER_UP) - { - png_bytep rp, dp, pp; - png_uint_32 i; - - for (i = 0, rp = row_buf + 1, dp = png_ptr->up_row + 1, - pp = prev_row + 1; i < row_bytes; - i++, rp++, pp++, dp++) - { - *dp = (png_byte)(((int)*rp - (int)*pp) & 0xff); - } - best_row = png_ptr->up_row; - } - - else if (filter_to_do & PNG_FILTER_UP) - { - png_bytep rp, dp, pp; - png_uint_32 sum = 0, lmins = mins; - png_uint_32 i; - int v; - - -#if defined(PNG_WRITE_WEIGHTED_FILTER_SUPPORTED) - if (png_ptr->heuristic_method == PNG_FILTER_HEURISTIC_WEIGHTED) - { - int j; - png_uint_32 lmhi, lmlo; - lmlo = lmins & PNG_LOMASK; - lmhi = (lmins >> PNG_HISHIFT) & PNG_HIMASK; - - for (j = 0; j < num_p_filters; j++) - { - if (png_ptr->prev_filters[j] == PNG_FILTER_VALUE_UP) - { - lmlo = (lmlo * png_ptr->inv_filter_weights[j]) >> - PNG_WEIGHT_SHIFT; - lmhi = (lmhi * png_ptr->inv_filter_weights[j]) >> - PNG_WEIGHT_SHIFT; - } - } - - lmlo = (lmlo * png_ptr->inv_filter_costs[PNG_FILTER_VALUE_UP]) >> - PNG_COST_SHIFT; - lmhi = (lmhi * png_ptr->inv_filter_costs[PNG_FILTER_VALUE_UP]) >> - PNG_COST_SHIFT; - - if (lmhi > PNG_HIMASK) - lmins = PNG_MAXSUM; - else - lmins = (lmhi << PNG_HISHIFT) + lmlo; - } -#endif - - for (i = 0, rp = row_buf + 1, dp = png_ptr->up_row + 1, - pp = prev_row + 1; i < row_bytes; i++) - { - v = *dp++ = (png_byte)(((int)*rp++ - (int)*pp++) & 0xff); - - sum += (v < 128) ? v : 256 - v; - - if (sum > lmins) /* We are already worse, don't continue. */ - break; - } - -#if defined(PNG_WRITE_WEIGHTED_FILTER_SUPPORTED) - if (png_ptr->heuristic_method == PNG_FILTER_HEURISTIC_WEIGHTED) - { - int j; - png_uint_32 sumhi, sumlo; - sumlo = sum & PNG_LOMASK; - sumhi = (sum >> PNG_HISHIFT) & PNG_HIMASK; - - for (j = 0; j < num_p_filters; j++) - { - if (png_ptr->prev_filters[j] == PNG_FILTER_VALUE_UP) - { - sumlo = (sumlo * png_ptr->filter_weights[j]) >> - PNG_WEIGHT_SHIFT; - sumhi = (sumhi * png_ptr->filter_weights[j]) >> - PNG_WEIGHT_SHIFT; - } - } - - sumlo = (sumlo * png_ptr->filter_costs[PNG_FILTER_VALUE_UP]) >> - PNG_COST_SHIFT; - sumhi = (sumhi * png_ptr->filter_costs[PNG_FILTER_VALUE_UP]) >> - PNG_COST_SHIFT; - - if (sumhi > PNG_HIMASK) - sum = PNG_MAXSUM; - else - sum = (sumhi << PNG_HISHIFT) + sumlo; - } -#endif - - if (sum < mins) - { - mins = sum; - best_row = png_ptr->up_row; - } - } - - /* avg filter */ - if (filter_to_do == PNG_FILTER_AVG) - { - png_bytep rp, dp, pp, lp; - png_uint_32 i; - for (i = 0, rp = row_buf + 1, dp = png_ptr->avg_row + 1, - pp = prev_row + 1; i < bpp; i++) - { - *dp++ = (png_byte)(((int)*rp++ - ((int)*pp++ / 2)) & 0xff); - } - for (lp = row_buf + 1; i < row_bytes; i++) - { - *dp++ = (png_byte)(((int)*rp++ - (((int)*pp++ + (int)*lp++) / 2)) - & 0xff); - } - best_row = png_ptr->avg_row; - } - - else if (filter_to_do & PNG_FILTER_AVG) - { - png_bytep rp, dp, pp, lp; - png_uint_32 sum = 0, lmins = mins; - png_uint_32 i; - int v; - -#if defined(PNG_WRITE_WEIGHTED_FILTER_SUPPORTED) - if (png_ptr->heuristic_method == PNG_FILTER_HEURISTIC_WEIGHTED) - { - int j; - png_uint_32 lmhi, lmlo; - lmlo = lmins & PNG_LOMASK; - lmhi = (lmins >> PNG_HISHIFT) & PNG_HIMASK; - - for (j = 0; j < num_p_filters; j++) - { - if (png_ptr->prev_filters[j] == PNG_FILTER_VALUE_AVG) - { - lmlo = (lmlo * png_ptr->inv_filter_weights[j]) >> - PNG_WEIGHT_SHIFT; - lmhi = (lmhi * png_ptr->inv_filter_weights[j]) >> - PNG_WEIGHT_SHIFT; - } - } - - lmlo = (lmlo * png_ptr->inv_filter_costs[PNG_FILTER_VALUE_AVG]) >> - PNG_COST_SHIFT; - lmhi = (lmhi * png_ptr->inv_filter_costs[PNG_FILTER_VALUE_AVG]) >> - PNG_COST_SHIFT; - - if (lmhi > PNG_HIMASK) - lmins = PNG_MAXSUM; - else - lmins = (lmhi << PNG_HISHIFT) + lmlo; - } -#endif - - for (i = 0, rp = row_buf + 1, dp = png_ptr->avg_row + 1, - pp = prev_row + 1; i < bpp; i++) - { - v = *dp++ = (png_byte)(((int)*rp++ - ((int)*pp++ / 2)) & 0xff); - - sum += (v < 128) ? v : 256 - v; - } - for (lp = row_buf + 1; i < row_bytes; i++) - { - v = *dp++ = - (png_byte)(((int)*rp++ - (((int)*pp++ + (int)*lp++) / 2)) & 0xff); - - sum += (v < 128) ? v : 256 - v; - - if (sum > lmins) /* We are already worse, don't continue. */ - break; - } - -#if defined(PNG_WRITE_WEIGHTED_FILTER_SUPPORTED) - if (png_ptr->heuristic_method == PNG_FILTER_HEURISTIC_WEIGHTED) - { - int j; - png_uint_32 sumhi, sumlo; - sumlo = sum & PNG_LOMASK; - sumhi = (sum >> PNG_HISHIFT) & PNG_HIMASK; - - for (j = 0; j < num_p_filters; j++) - { - if (png_ptr->prev_filters[j] == PNG_FILTER_VALUE_NONE) - { - sumlo = (sumlo * png_ptr->filter_weights[j]) >> - PNG_WEIGHT_SHIFT; - sumhi = (sumhi * png_ptr->filter_weights[j]) >> - PNG_WEIGHT_SHIFT; - } - } - - sumlo = (sumlo * png_ptr->filter_costs[PNG_FILTER_VALUE_AVG]) >> - PNG_COST_SHIFT; - sumhi = (sumhi * png_ptr->filter_costs[PNG_FILTER_VALUE_AVG]) >> - PNG_COST_SHIFT; - - if (sumhi > PNG_HIMASK) - sum = PNG_MAXSUM; - else - sum = (sumhi << PNG_HISHIFT) + sumlo; - } -#endif - - if (sum < mins) - { - mins = sum; - best_row = png_ptr->avg_row; - } - } - - /* Paeth filter */ - if (filter_to_do == PNG_FILTER_PAETH) - { - png_bytep rp, dp, pp, cp, lp; - png_uint_32 i; - for (i = 0, rp = row_buf + 1, dp = png_ptr->paeth_row + 1, - pp = prev_row + 1; i < bpp; i++) - { - *dp++ = (png_byte)(((int)*rp++ - (int)*pp++) & 0xff); - } - - for (lp = row_buf + 1, cp = prev_row + 1; i < row_bytes; i++) - { - int a, b, c, pa, pb, pc, p; - - b = *pp++; - c = *cp++; - a = *lp++; - - p = b - c; - pc = a - c; - -#ifdef PNG_USE_ABS - pa = abs(p); - pb = abs(pc); - pc = abs(p + pc); -#else - pa = p < 0 ? -p : p; - pb = pc < 0 ? -pc : pc; - pc = (p + pc) < 0 ? -(p + pc) : p + pc; -#endif - - p = (pa <= pb && pa <=pc) ? a : (pb <= pc) ? b : c; - - *dp++ = (png_byte)(((int)*rp++ - p) & 0xff); - } - best_row = png_ptr->paeth_row; - } - - else if (filter_to_do & PNG_FILTER_PAETH) - { - png_bytep rp, dp, pp, cp, lp; - png_uint_32 sum = 0, lmins = mins; - png_uint_32 i; - int v; - -#if defined(PNG_WRITE_WEIGHTED_FILTER_SUPPORTED) - if (png_ptr->heuristic_method == PNG_FILTER_HEURISTIC_WEIGHTED) - { - int j; - png_uint_32 lmhi, lmlo; - lmlo = lmins & PNG_LOMASK; - lmhi = (lmins >> PNG_HISHIFT) & PNG_HIMASK; - - for (j = 0; j < num_p_filters; j++) - { - if (png_ptr->prev_filters[j] == PNG_FILTER_VALUE_PAETH) - { - lmlo = (lmlo * png_ptr->inv_filter_weights[j]) >> - PNG_WEIGHT_SHIFT; - lmhi = (lmhi * png_ptr->inv_filter_weights[j]) >> - PNG_WEIGHT_SHIFT; - } - } - - lmlo = (lmlo * png_ptr->inv_filter_costs[PNG_FILTER_VALUE_PAETH]) >> - PNG_COST_SHIFT; - lmhi = (lmhi * png_ptr->inv_filter_costs[PNG_FILTER_VALUE_PAETH]) >> - PNG_COST_SHIFT; - - if (lmhi > PNG_HIMASK) - lmins = PNG_MAXSUM; - else - lmins = (lmhi << PNG_HISHIFT) + lmlo; - } -#endif - - for (i = 0, rp = row_buf + 1, dp = png_ptr->paeth_row + 1, - pp = prev_row + 1; i < bpp; i++) - { - v = *dp++ = (png_byte)(((int)*rp++ - (int)*pp++) & 0xff); - - sum += (v < 128) ? v : 256 - v; - } - - for (lp = row_buf + 1, cp = prev_row + 1; i < row_bytes; i++) - { - int a, b, c, pa, pb, pc, p; - - b = *pp++; - c = *cp++; - a = *lp++; - -#ifndef PNG_SLOW_PAETH - p = b - c; - pc = a - c; -#ifdef PNG_USE_ABS - pa = abs(p); - pb = abs(pc); - pc = abs(p + pc); -#else - pa = p < 0 ? -p : p; - pb = pc < 0 ? -pc : pc; - pc = (p + pc) < 0 ? -(p + pc) : p + pc; -#endif - p = (pa <= pb && pa <=pc) ? a : (pb <= pc) ? b : c; -#else /* PNG_SLOW_PAETH */ - p = a + b - c; - pa = abs(p - a); - pb = abs(p - b); - pc = abs(p - c); - if (pa <= pb && pa <= pc) - p = a; - else if (pb <= pc) - p = b; - else - p = c; -#endif /* PNG_SLOW_PAETH */ - - v = *dp++ = (png_byte)(((int)*rp++ - p) & 0xff); - - sum += (v < 128) ? v : 256 - v; - - if (sum > lmins) /* We are already worse, don't continue. */ - break; - } - -#if defined(PNG_WRITE_WEIGHTED_FILTER_SUPPORTED) - if (png_ptr->heuristic_method == PNG_FILTER_HEURISTIC_WEIGHTED) - { - int j; - png_uint_32 sumhi, sumlo; - sumlo = sum & PNG_LOMASK; - sumhi = (sum >> PNG_HISHIFT) & PNG_HIMASK; - - for (j = 0; j < num_p_filters; j++) - { - if (png_ptr->prev_filters[j] == PNG_FILTER_VALUE_PAETH) - { - sumlo = (sumlo * png_ptr->filter_weights[j]) >> - PNG_WEIGHT_SHIFT; - sumhi = (sumhi * png_ptr->filter_weights[j]) >> - PNG_WEIGHT_SHIFT; - } - } - - sumlo = (sumlo * png_ptr->filter_costs[PNG_FILTER_VALUE_PAETH]) >> - PNG_COST_SHIFT; - sumhi = (sumhi * png_ptr->filter_costs[PNG_FILTER_VALUE_PAETH]) >> - PNG_COST_SHIFT; - - if (sumhi > PNG_HIMASK) - sum = PNG_MAXSUM; - else - sum = (sumhi << PNG_HISHIFT) + sumlo; - } -#endif - - if (sum < mins) - { - best_row = png_ptr->paeth_row; - } - } -#endif /* PNG_NO_WRITE_FILTER */ - /* Do the actual writing of the filtered row data from the chosen filter. */ - - png_write_filtered_row(png_ptr, best_row); - -#ifndef PNG_NO_WRITE_FILTER -#if defined(PNG_WRITE_WEIGHTED_FILTER_SUPPORTED) - /* Save the type of filter we picked this time for future calculations */ - if (png_ptr->num_prev_filters > 0) - { - int j; - for (j = 1; j < num_p_filters; j++) - { - png_ptr->prev_filters[j] = png_ptr->prev_filters[j - 1]; - } - png_ptr->prev_filters[j] = best_row[0]; - } -#endif -#endif /* PNG_NO_WRITE_FILTER */ -} - - -/* Do the actual writing of a previously filtered row. */ -void /* PRIVATE */ -png_write_filtered_row(png_structp png_ptr, png_bytep filtered_row) -{ - png_debug(1, "in png_write_filtered_row\n"); - png_debug1(2, "filter = %d\n", filtered_row[0]); - /* set up the zlib input buffer */ - - png_ptr->zstream.next_in = filtered_row; - png_ptr->zstream.avail_in = (uInt)png_ptr->row_info.rowbytes + 1; - /* repeat until we have compressed all the data */ - do - { - int ret; /* return of zlib */ - - /* compress the data */ - ret = deflate(&png_ptr->zstream, Z_NO_FLUSH); - /* check for compression errors */ - if (ret != Z_OK) - { - if (png_ptr->zstream.msg != NULL) - png_error(png_ptr, png_ptr->zstream.msg); - else - png_error(png_ptr, "zlib error"); - } - - /* see if it is time to write another IDAT */ - if (!(png_ptr->zstream.avail_out)) - { - /* write the IDAT and reset the zlib output buffer */ - png_write_IDAT(png_ptr, png_ptr->zbuf, png_ptr->zbuf_size); - png_ptr->zstream.next_out = png_ptr->zbuf; - png_ptr->zstream.avail_out = (uInt)png_ptr->zbuf_size; - } - /* repeat until all data has been compressed */ - } while (png_ptr->zstream.avail_in); - - /* swap the current and previous rows */ - if (png_ptr->prev_row != NULL) - { - png_bytep tptr; - - tptr = png_ptr->prev_row; - png_ptr->prev_row = png_ptr->row_buf; - png_ptr->row_buf = tptr; - } - - /* finish row - updates counters and flushes zlib if last row */ - png_write_finish_row(png_ptr); - -#if defined(PNG_WRITE_FLUSH_SUPPORTED) - png_ptr->flush_rows++; - - if (png_ptr->flush_dist > 0 && - png_ptr->flush_rows >= png_ptr->flush_dist) - { - png_write_flush(png_ptr); - } -#endif -} -#endif /* PNG_WRITE_SUPPORTED */ diff --git a/src/3rdParty/CxImage/zlib/ChangeLog b/src/3rdParty/CxImage/zlib/ChangeLog deleted file mode 100644 index 1ac946309b..0000000000 --- a/src/3rdParty/CxImage/zlib/ChangeLog +++ /dev/null @@ -1,855 +0,0 @@ - - ChangeLog file for zlib - -Changes in 1.2.3 (18 July 2005) -- Apply security vulnerability fixes to contrib/infback9 as well -- Clean up some text files (carriage returns, trailing space) -- Update testzlib, vstudio, masmx64, and masmx86 in contrib [Vollant] - -Changes in 1.2.2.4 (11 July 2005) -- Add inflatePrime() function for starting inflation at bit boundary -- Avoid some Visual C warnings in deflate.c -- Avoid more silly Visual C warnings in inflate.c and inftrees.c for 64-bit - compile -- Fix some spelling errors in comments [Betts] -- Correct inflateInit2() error return documentation in zlib.h -- Added zran.c example of compressed data random access to examples - directory, shows use of inflatePrime() -- Fix cast for assignments to strm->state in inflate.c and infback.c -- Fix zlibCompileFlags() in zutil.c to use 1L for long shifts [Oberhumer] -- Move declarations of gf2 functions to right place in crc32.c [Oberhumer] -- Add cast in trees.c t avoid a warning [Oberhumer] -- Avoid some warnings in fitblk.c, gun.c, gzjoin.c in examples [Oberhumer] -- Update make_vms.com [Zinser] -- Initialize state->write in inflateReset() since copied in inflate_fast() -- Be more strict on incomplete code sets in inflate_table() and increase - ENOUGH and MAXD -- this repairs a possible security vulnerability for - invalid inflate input. Thanks to Tavis Ormandy and Markus Oberhumer for - discovering the vulnerability and providing test cases. -- Add ia64 support to configure for HP-UX [Smith] -- Add error return to gzread() for format or i/o error [Levin] -- Use malloc.h for OS/2 [Necasek] - -Changes in 1.2.2.3 (27 May 2005) -- Replace 1U constants in inflate.c and inftrees.c for 64-bit compile -- Typecast fread() return values in gzio.c [Vollant] -- Remove trailing space in minigzip.c outmode (VC++ can't deal with it) -- Fix crc check bug in gzread() after gzungetc() [Heiner] -- Add the deflateTune() function to adjust internal compression parameters -- Add a fast gzip decompressor, gun.c, to examples (use of inflateBack) -- Remove an incorrect assertion in examples/zpipe.c -- Add C++ wrapper in infback9.h [Donais] -- Fix bug in inflateCopy() when decoding fixed codes -- Note in zlib.h how much deflateSetDictionary() actually uses -- Remove USE_DICT_HEAD in deflate.c (would mess up inflate if used) -- Add _WIN32_WCE to define WIN32 in zconf.in.h [Spencer] -- Don't include stderr.h or errno.h for _WIN32_WCE in zutil.h [Spencer] -- Add gzdirect() function to indicate transparent reads -- Update contrib/minizip [Vollant] -- Fix compilation of deflate.c when both ASMV and FASTEST [Oberhumer] -- Add casts in crc32.c to avoid warnings [Oberhumer] -- Add contrib/masmx64 [Vollant] -- Update contrib/asm586, asm686, masmx86, testzlib, vstudio [Vollant] - -Changes in 1.2.2.2 (30 December 2004) -- Replace structure assignments in deflate.c and inflate.c with zmemcpy to - avoid implicit memcpy calls (portability for no-library compilation) -- Increase sprintf() buffer size in gzdopen() to allow for large numbers -- Add INFLATE_STRICT to check distances against zlib header -- Improve WinCE errno handling and comments [Chang] -- Remove comment about no gzip header processing in FAQ -- Add Z_FIXED strategy option to deflateInit2() to force fixed trees -- Add updated make_vms.com [Coghlan], update README -- Create a new "examples" directory, move gzappend.c there, add zpipe.c, - fitblk.c, gzlog.[ch], gzjoin.c, and zlib_how.html. -- Add FAQ entry and comments in deflate.c on uninitialized memory access -- Add Solaris 9 make options in configure [Gilbert] -- Allow strerror() usage in gzio.c for STDC -- Fix DecompressBuf in contrib/delphi/ZLib.pas [ManChesTer] -- Update contrib/masmx86/inffas32.asm and gvmat32.asm [Vollant] -- Use z_off_t for adler32_combine() and crc32_combine() lengths -- Make adler32() much faster for small len -- Use OS_CODE in deflate() default gzip header - -Changes in 1.2.2.1 (31 October 2004) -- Allow inflateSetDictionary() call for raw inflate -- Fix inflate header crc check bug for file names and comments -- Add deflateSetHeader() and gz_header structure for custom gzip headers -- Add inflateGetheader() to retrieve gzip headers -- Add crc32_combine() and adler32_combine() functions -- Add alloc_func, free_func, in_func, out_func to Z_PREFIX list -- Use zstreamp consistently in zlib.h (inflate_back functions) -- Remove GUNZIP condition from definition of inflate_mode in inflate.h - and in contrib/inflate86/inffast.S [Truta, Anderson] -- Add support for AMD64 in contrib/inflate86/inffas86.c [Anderson] -- Update projects/README.projects and projects/visualc6 [Truta] -- Update win32/DLL_FAQ.txt [Truta] -- Avoid warning under NO_GZCOMPRESS in gzio.c; fix typo [Truta] -- Deprecate Z_ASCII; use Z_TEXT instead [Truta] -- Use a new algorithm for setting strm->data_type in trees.c [Truta] -- Do not define an exit() prototype in zutil.c unless DEBUG defined -- Remove prototype of exit() from zutil.c, example.c, minigzip.c [Truta] -- Add comment in zlib.h for Z_NO_FLUSH parameter to deflate() -- Fix Darwin build version identification [Peterson] - -Changes in 1.2.2 (3 October 2004) -- Update zlib.h comments on gzip in-memory processing -- Set adler to 1 in inflateReset() to support Java test suite [Walles] -- Add contrib/dotzlib [Ravn] -- Update win32/DLL_FAQ.txt [Truta] -- Update contrib/minizip [Vollant] -- Move contrib/visual-basic.txt to old/ [Truta] -- Fix assembler builds in projects/visualc6/ [Truta] - -Changes in 1.2.1.2 (9 September 2004) -- Update INDEX file -- Fix trees.c to update strm->data_type (no one ever noticed!) -- Fix bug in error case in inflate.c, infback.c, and infback9.c [Brown] -- Add "volatile" to crc table flag declaration (for DYNAMIC_CRC_TABLE) -- Add limited multitasking protection to DYNAMIC_CRC_TABLE -- Add NO_vsnprintf for VMS in zutil.h [Mozilla] -- Don't declare strerror() under VMS [Mozilla] -- Add comment to DYNAMIC_CRC_TABLE to use get_crc_table() to initialize -- Update contrib/ada [Anisimkov] -- Update contrib/minizip [Vollant] -- Fix configure to not hardcode directories for Darwin [Peterson] -- Fix gzio.c to not return error on empty files [Brown] -- Fix indentation; update version in contrib/delphi/ZLib.pas and - contrib/pascal/zlibpas.pas [Truta] -- Update mkasm.bat in contrib/masmx86 [Truta] -- Update contrib/untgz [Truta] -- Add projects/README.projects [Truta] -- Add project for MS Visual C++ 6.0 in projects/visualc6 [Cadieux, Truta] -- Update win32/DLL_FAQ.txt [Truta] -- Update list of Z_PREFIX symbols in zconf.h [Randers-Pehrson, Truta] -- Remove an unnecessary assignment to curr in inftrees.c [Truta] -- Add OS/2 to exe builds in configure [Poltorak] -- Remove err dummy parameter in zlib.h [Kientzle] - -Changes in 1.2.1.1 (9 January 2004) -- Update email address in README -- Several FAQ updates -- Fix a big fat bug in inftrees.c that prevented decoding valid - dynamic blocks with only literals and no distance codes -- - Thanks to "Hot Emu" for the bug report and sample file -- Add a note to puff.c on no distance codes case. - -Changes in 1.2.1 (17 November 2003) -- Remove a tab in contrib/gzappend/gzappend.c -- Update some interfaces in contrib for new zlib functions -- Update zlib version number in some contrib entries -- Add Windows CE definition for ptrdiff_t in zutil.h [Mai, Truta] -- Support shared libraries on Hurd and KFreeBSD [Brown] -- Fix error in NO_DIVIDE option of adler32.c - -Changes in 1.2.0.8 (4 November 2003) -- Update version in contrib/delphi/ZLib.pas and contrib/pascal/zlibpas.pas -- Add experimental NO_DIVIDE #define in adler32.c - - Possibly faster on some processors (let me know if it is) -- Correct Z_BLOCK to not return on first inflate call if no wrap -- Fix strm->data_type on inflate() return to correctly indicate EOB -- Add deflatePrime() function for appending in the middle of a byte -- Add contrib/gzappend for an example of appending to a stream -- Update win32/DLL_FAQ.txt [Truta] -- Delete Turbo C comment in README [Truta] -- Improve some indentation in zconf.h [Truta] -- Fix infinite loop on bad input in configure script [Church] -- Fix gzeof() for concatenated gzip files [Johnson] -- Add example to contrib/visual-basic.txt [Michael B.] -- Add -p to mkdir's in Makefile.in [vda] -- Fix configure to properly detect presence or lack of printf functions -- Add AS400 support [Monnerat] -- Add a little Cygwin support [Wilson] - -Changes in 1.2.0.7 (21 September 2003) -- Correct some debug formats in contrib/infback9 -- Cast a type in a debug statement in trees.c -- Change search and replace delimiter in configure from % to # [Beebe] -- Update contrib/untgz to 0.2 with various fixes [Truta] -- Add build support for Amiga [Nikl] -- Remove some directories in old that have been updated to 1.2 -- Add dylib building for Mac OS X in configure and Makefile.in -- Remove old distribution stuff from Makefile -- Update README to point to DLL_FAQ.txt, and add comment on Mac OS X -- Update links in README - -Changes in 1.2.0.6 (13 September 2003) -- Minor FAQ updates -- Update contrib/minizip to 1.00 [Vollant] -- Remove test of gz functions in example.c when GZ_COMPRESS defined [Truta] -- Update POSTINC comment for 68060 [Nikl] -- Add contrib/infback9 with deflate64 decoding (unsupported) -- For MVS define NO_vsnprintf and undefine FAR [van Burik] -- Add pragma for fdopen on MVS [van Burik] - -Changes in 1.2.0.5 (8 September 2003) -- Add OF to inflateBackEnd() declaration in zlib.h -- Remember start when using gzdopen in the middle of a file -- Use internal off_t counters in gz* functions to properly handle seeks -- Perform more rigorous check for distance-too-far in inffast.c -- Add Z_BLOCK flush option to return from inflate at block boundary -- Set strm->data_type on return from inflate - - Indicate bits unused, if at block boundary, and if in last block -- Replace size_t with ptrdiff_t in crc32.c, and check for correct size -- Add condition so old NO_DEFLATE define still works for compatibility -- FAQ update regarding the Windows DLL [Truta] -- INDEX update: add qnx entry, remove aix entry [Truta] -- Install zlib.3 into mandir [Wilson] -- Move contrib/zlib_dll_FAQ.txt to win32/DLL_FAQ.txt; update [Truta] -- Adapt the zlib interface to the new DLL convention guidelines [Truta] -- Introduce ZLIB_WINAPI macro to allow the export of functions using - the WINAPI calling convention, for Visual Basic [Vollant, Truta] -- Update msdos and win32 scripts and makefiles [Truta] -- Export symbols by name, not by ordinal, in win32/zlib.def [Truta] -- Add contrib/ada [Anisimkov] -- Move asm files from contrib/vstudio/vc70_32 to contrib/asm386 [Truta] -- Rename contrib/asm386 to contrib/masmx86 [Truta, Vollant] -- Add contrib/masm686 [Truta] -- Fix offsets in contrib/inflate86 and contrib/masmx86/inffas32.asm - [Truta, Vollant] -- Update contrib/delphi; rename to contrib/pascal; add example [Truta] -- Remove contrib/delphi2; add a new contrib/delphi [Truta] -- Avoid inclusion of the nonstandard in contrib/iostream, - and fix some method prototypes [Truta] -- Fix the ZCR_SEED2 constant to avoid warnings in contrib/minizip - [Truta] -- Avoid the use of backslash (\) in contrib/minizip [Vollant] -- Fix file time handling in contrib/untgz; update makefiles [Truta] -- Update contrib/vstudio/vc70_32 to comply with the new DLL guidelines - [Vollant] -- Remove contrib/vstudio/vc15_16 [Vollant] -- Rename contrib/vstudio/vc70_32 to contrib/vstudio/vc7 [Truta] -- Update README.contrib [Truta] -- Invert the assignment order of match_head and s->prev[...] in - INSERT_STRING [Truta] -- Compare TOO_FAR with 32767 instead of 32768, to avoid 16-bit warnings - [Truta] -- Compare function pointers with 0, not with NULL or Z_NULL [Truta] -- Fix prototype of syncsearch in inflate.c [Truta] -- Introduce ASMINF macro to be enabled when using an ASM implementation - of inflate_fast [Truta] -- Change NO_DEFLATE to NO_GZCOMPRESS [Truta] -- Modify test_gzio in example.c to take a single file name as a - parameter [Truta] -- Exit the example.c program if gzopen fails [Truta] -- Add type casts around strlen in example.c [Truta] -- Remove casting to sizeof in minigzip.c; give a proper type - to the variable compared with SUFFIX_LEN [Truta] -- Update definitions of STDC and STDC99 in zconf.h [Truta] -- Synchronize zconf.h with the new Windows DLL interface [Truta] -- Use SYS16BIT instead of __32BIT__ to distinguish between - 16- and 32-bit platforms [Truta] -- Use far memory allocators in small 16-bit memory models for - Turbo C [Truta] -- Add info about the use of ASMV, ASMINF and ZLIB_WINAPI in - zlibCompileFlags [Truta] -- Cygwin has vsnprintf [Wilson] -- In Windows16, OS_CODE is 0, as in MSDOS [Truta] -- In Cygwin, OS_CODE is 3 (Unix), not 11 (Windows32) [Wilson] - -Changes in 1.2.0.4 (10 August 2003) -- Minor FAQ updates -- Be more strict when checking inflateInit2's windowBits parameter -- Change NO_GUNZIP compile option to NO_GZIP to cover deflate as well -- Add gzip wrapper option to deflateInit2 using windowBits -- Add updated QNX rule in configure and qnx directory [Bonnefoy] -- Make inflate distance-too-far checks more rigorous -- Clean up FAR usage in inflate -- Add casting to sizeof() in gzio.c and minigzip.c - -Changes in 1.2.0.3 (19 July 2003) -- Fix silly error in gzungetc() implementation [Vollant] -- Update contrib/minizip and contrib/vstudio [Vollant] -- Fix printf format in example.c -- Correct cdecl support in zconf.in.h [Anisimkov] -- Minor FAQ updates - -Changes in 1.2.0.2 (13 July 2003) -- Add ZLIB_VERNUM in zlib.h for numerical preprocessor comparisons -- Attempt to avoid warnings in crc32.c for pointer-int conversion -- Add AIX to configure, remove aix directory [Bakker] -- Add some casts to minigzip.c -- Improve checking after insecure sprintf() or vsprintf() calls -- Remove #elif's from crc32.c -- Change leave label to inf_leave in inflate.c and infback.c to avoid - library conflicts -- Remove inflate gzip decoding by default--only enable gzip decoding by - special request for stricter backward compatibility -- Add zlibCompileFlags() function to return compilation information -- More typecasting in deflate.c to avoid warnings -- Remove leading underscore from _Capital #defines [Truta] -- Fix configure to link shared library when testing -- Add some Windows CE target adjustments [Mai] -- Remove #define ZLIB_DLL in zconf.h [Vollant] -- Add zlib.3 [Rodgers] -- Update RFC URL in deflate.c and algorithm.txt [Mai] -- Add zlib_dll_FAQ.txt to contrib [Truta] -- Add UL to some constants [Truta] -- Update minizip and vstudio [Vollant] -- Remove vestigial NEED_DUMMY_RETURN from zconf.in.h -- Expand use of NO_DUMMY_DECL to avoid all dummy structures -- Added iostream3 to contrib [Schwardt] -- Replace rewind() with fseek() for WinCE [Truta] -- Improve setting of zlib format compression level flags - - Report 0 for huffman and rle strategies and for level == 0 or 1 - - Report 2 only for level == 6 -- Only deal with 64K limit when necessary at compile time [Truta] -- Allow TOO_FAR check to be turned off at compile time [Truta] -- Add gzclearerr() function [Souza] -- Add gzungetc() function - -Changes in 1.2.0.1 (17 March 2003) -- Add Z_RLE strategy for run-length encoding [Truta] - - When Z_RLE requested, restrict matches to distance one - - Update zlib.h, minigzip.c, gzopen(), gzdopen() for Z_RLE -- Correct FASTEST compilation to allow level == 0 -- Clean up what gets compiled for FASTEST -- Incorporate changes to zconf.in.h [Vollant] - - Refine detection of Turbo C need for dummy returns - - Refine ZLIB_DLL compilation - - Include additional header file on VMS for off_t typedef -- Try to use _vsnprintf where it supplants vsprintf [Vollant] -- Add some casts in inffast.c -- Enchance comments in zlib.h on what happens if gzprintf() tries to - write more than 4095 bytes before compression -- Remove unused state from inflateBackEnd() -- Remove exit(0) from minigzip.c, example.c -- Get rid of all those darn tabs -- Add "check" target to Makefile.in that does the same thing as "test" -- Add "mostlyclean" and "maintainer-clean" targets to Makefile.in -- Update contrib/inflate86 [Anderson] -- Update contrib/testzlib, contrib/vstudio, contrib/minizip [Vollant] -- Add msdos and win32 directories with makefiles [Truta] -- More additions and improvements to the FAQ - -Changes in 1.2.0 (9 March 2003) -- New and improved inflate code - - About 20% faster - - Does not allocate 32K window unless and until needed - - Automatically detects and decompresses gzip streams - - Raw inflate no longer needs an extra dummy byte at end - - Added inflateBack functions using a callback interface--even faster - than inflate, useful for file utilities (gzip, zip) - - Added inflateCopy() function to record state for random access on - externally generated deflate streams (e.g. in gzip files) - - More readable code (I hope) -- New and improved crc32() - - About 50% faster, thanks to suggestions from Rodney Brown -- Add deflateBound() and compressBound() functions -- Fix memory leak in deflateInit2() -- Permit setting dictionary for raw deflate (for parallel deflate) -- Fix const declaration for gzwrite() -- Check for some malloc() failures in gzio.c -- Fix bug in gzopen() on single-byte file 0x1f -- Fix bug in gzread() on concatenated file with 0x1f at end of buffer - and next buffer doesn't start with 0x8b -- Fix uncompress() to return Z_DATA_ERROR on truncated input -- Free memory at end of example.c -- Remove MAX #define in trees.c (conflicted with some libraries) -- Fix static const's in deflate.c, gzio.c, and zutil.[ch] -- Declare malloc() and free() in gzio.c if STDC not defined -- Use malloc() instead of calloc() in zutil.c if int big enough -- Define STDC for AIX -- Add aix/ with approach for compiling shared library on AIX -- Add HP-UX support for shared libraries in configure -- Add OpenUNIX support for shared libraries in configure -- Use $cc instead of gcc to build shared library -- Make prefix directory if needed when installing -- Correct Macintosh avoidance of typedef Byte in zconf.h -- Correct Turbo C memory allocation when under Linux -- Use libz.a instead of -lz in Makefile (assure use of compiled library) -- Update configure to check for snprintf or vsnprintf functions and their - return value, warn during make if using an insecure function -- Fix configure problem with compile-time knowledge of HAVE_UNISTD_H that - is lost when library is used--resolution is to build new zconf.h -- Documentation improvements (in zlib.h): - - Document raw deflate and inflate - - Update RFCs URL - - Point out that zlib and gzip formats are different - - Note that Z_BUF_ERROR is not fatal - - Document string limit for gzprintf() and possible buffer overflow - - Note requirement on avail_out when flushing - - Note permitted values of flush parameter of inflate() -- Add some FAQs (and even answers) to the FAQ -- Add contrib/inflate86/ for x86 faster inflate -- Add contrib/blast/ for PKWare Data Compression Library decompression -- Add contrib/puff/ simple inflate for deflate format description - -Changes in 1.1.4 (11 March 2002) -- ZFREE was repeated on same allocation on some error conditions. - This creates a security problem described in - http://www.zlib.org/advisory-2002-03-11.txt -- Returned incorrect error (Z_MEM_ERROR) on some invalid data -- Avoid accesses before window for invalid distances with inflate window - less than 32K. -- force windowBits > 8 to avoid a bug in the encoder for a window size - of 256 bytes. (A complete fix will be available in 1.1.5). - -Changes in 1.1.3 (9 July 1998) -- fix "an inflate input buffer bug that shows up on rare but persistent - occasions" (Mark) -- fix gzread and gztell for concatenated .gz files (Didier Le Botlan) -- fix gzseek(..., SEEK_SET) in write mode -- fix crc check after a gzeek (Frank Faubert) -- fix miniunzip when the last entry in a zip file is itself a zip file - (J Lillge) -- add contrib/asm586 and contrib/asm686 (Brian Raiter) - See http://www.muppetlabs.com/~breadbox/software/assembly.html -- add support for Delphi 3 in contrib/delphi (Bob Dellaca) -- add support for C++Builder 3 and Delphi 3 in contrib/delphi2 (Davide Moretti) -- do not exit prematurely in untgz if 0 at start of block (Magnus Holmgren) -- use macro EXTERN instead of extern to support DLL for BeOS (Sander Stoks) -- added a FAQ file - -- Support gzdopen on Mac with Metrowerks (Jason Linhart) -- Do not redefine Byte on Mac (Brad Pettit & Jason Linhart) -- define SEEK_END too if SEEK_SET is not defined (Albert Chin-A-Young) -- avoid some warnings with Borland C (Tom Tanner) -- fix a problem in contrib/minizip/zip.c for 16-bit MSDOS (Gilles Vollant) -- emulate utime() for WIN32 in contrib/untgz (Gilles Vollant) -- allow several arguments to configure (Tim Mooney, Frodo Looijaard) -- use libdir and includedir in Makefile.in (Tim Mooney) -- support shared libraries on OSF1 V4 (Tim Mooney) -- remove so_locations in "make clean" (Tim Mooney) -- fix maketree.c compilation error (Glenn, Mark) -- Python interface to zlib now in Python 1.5 (Jeremy Hylton) -- new Makefile.riscos (Rich Walker) -- initialize static descriptors in trees.c for embedded targets (Nick Smith) -- use "foo-gz" in example.c for RISCOS and VMS (Nick Smith) -- add the OS/2 files in Makefile.in too (Andrew Zabolotny) -- fix fdopen and halloc macros for Microsoft C 6.0 (Tom Lane) -- fix maketree.c to allow clean compilation of inffixed.h (Mark) -- fix parameter check in deflateCopy (Gunther Nikl) -- cleanup trees.c, use compressed_len only in debug mode (Christian Spieler) -- Many portability patches by Christian Spieler: - . zutil.c, zutil.h: added "const" for zmem* - . Make_vms.com: fixed some typos - . Make_vms.com: msdos/Makefile.*: removed zutil.h from some dependency lists - . msdos/Makefile.msc: remove "default rtl link library" info from obj files - . msdos/Makefile.*: use model-dependent name for the built zlib library - . msdos/Makefile.emx, nt/Makefile.emx, nt/Makefile.gcc: - new makefiles, for emx (DOS/OS2), emx&rsxnt and mingw32 (Windows 9x / NT) -- use define instead of typedef for Bytef also for MSC small/medium (Tom Lane) -- replace __far with _far for better portability (Christian Spieler, Tom Lane) -- fix test for errno.h in configure (Tim Newsham) - -Changes in 1.1.2 (19 March 98) -- added contrib/minzip, mini zip and unzip based on zlib (Gilles Vollant) - See http://www.winimage.com/zLibDll/unzip.html -- preinitialize the inflate tables for fixed codes, to make the code - completely thread safe (Mark) -- some simplifications and slight speed-up to the inflate code (Mark) -- fix gzeof on non-compressed files (Allan Schrum) -- add -std1 option in configure for OSF1 to fix gzprintf (Martin Mokrejs) -- use default value of 4K for Z_BUFSIZE for 16-bit MSDOS (Tim Wegner + Glenn) -- added os2/Makefile.def and os2/zlib.def (Andrew Zabolotny) -- add shared lib support for UNIX_SV4.2MP (MATSUURA Takanori) -- do not wrap extern "C" around system includes (Tom Lane) -- mention zlib binding for TCL in README (Andreas Kupries) -- added amiga/Makefile.pup for Amiga powerUP SAS/C PPC (Andreas Kleinert) -- allow "make install prefix=..." even after configure (Glenn Randers-Pehrson) -- allow "configure --prefix $HOME" (Tim Mooney) -- remove warnings in example.c and gzio.c (Glenn Randers-Pehrson) -- move Makefile.sas to amiga/Makefile.sas - -Changes in 1.1.1 (27 Feb 98) -- fix macros _tr_tally_* in deflate.h for debug mode (Glenn Randers-Pehrson) -- remove block truncation heuristic which had very marginal effect for zlib - (smaller lit_bufsize than in gzip 1.2.4) and degraded a little the - compression ratio on some files. This also allows inlining _tr_tally for - matches in deflate_slow. -- added msdos/Makefile.w32 for WIN32 Microsoft Visual C++ (Bob Frazier) - -Changes in 1.1.0 (24 Feb 98) -- do not return STREAM_END prematurely in inflate (John Bowler) -- revert to the zlib 1.0.8 inflate to avoid the gcc 2.8.0 bug (Jeremy Buhler) -- compile with -DFASTEST to get compression code optimized for speed only -- in minigzip, try mmap'ing the input file first (Miguel Albrecht) -- increase size of I/O buffers in minigzip.c and gzio.c (not a big gain - on Sun but significant on HP) - -- add a pointer to experimental unzip library in README (Gilles Vollant) -- initialize variable gcc in configure (Chris Herborth) - -Changes in 1.0.9 (17 Feb 1998) -- added gzputs and gzgets functions -- do not clear eof flag in gzseek (Mark Diekhans) -- fix gzseek for files in transparent mode (Mark Diekhans) -- do not assume that vsprintf returns the number of bytes written (Jens Krinke) -- replace EXPORT with ZEXPORT to avoid conflict with other programs -- added compress2 in zconf.h, zlib.def, zlib.dnt -- new asm code from Gilles Vollant in contrib/asm386 -- simplify the inflate code (Mark): - . Replace ZALLOC's in huft_build() with single ZALLOC in inflate_blocks_new() - . ZALLOC the length list in inflate_trees_fixed() instead of using stack - . ZALLOC the value area for huft_build() instead of using stack - . Simplify Z_FINISH check in inflate() - -- Avoid gcc 2.8.0 comparison bug a little differently than zlib 1.0.8 -- in inftrees.c, avoid cc -O bug on HP (Farshid Elahi) -- in zconf.h move the ZLIB_DLL stuff earlier to avoid problems with - the declaration of FAR (Gilles VOllant) -- install libz.so* with mode 755 (executable) instead of 644 (Marc Lehmann) -- read_buf buf parameter of type Bytef* instead of charf* -- zmemcpy parameters are of type Bytef*, not charf* (Joseph Strout) -- do not redeclare unlink in minigzip.c for WIN32 (John Bowler) -- fix check for presence of directories in "make install" (Ian Willis) - -Changes in 1.0.8 (27 Jan 1998) -- fixed offsets in contrib/asm386/gvmat32.asm (Gilles Vollant) -- fix gzgetc and gzputc for big endian systems (Markus Oberhumer) -- added compress2() to allow setting the compression level -- include sys/types.h to get off_t on some systems (Marc Lehmann & QingLong) -- use constant arrays for the static trees in trees.c instead of computing - them at run time (thanks to Ken Raeburn for this suggestion). To create - trees.h, compile with GEN_TREES_H and run "make test". -- check return code of example in "make test" and display result -- pass minigzip command line options to file_compress -- simplifying code of inflateSync to avoid gcc 2.8 bug - -- support CC="gcc -Wall" in configure -s (QingLong) -- avoid a flush caused by ftell in gzopen for write mode (Ken Raeburn) -- fix test for shared library support to avoid compiler warnings -- zlib.lib -> zlib.dll in msdos/zlib.rc (Gilles Vollant) -- check for TARGET_OS_MAC in addition to MACOS (Brad Pettit) -- do not use fdopen for Metrowerks on Mac (Brad Pettit)) -- add checks for gzputc and gzputc in example.c -- avoid warnings in gzio.c and deflate.c (Andreas Kleinert) -- use const for the CRC table (Ken Raeburn) -- fixed "make uninstall" for shared libraries -- use Tracev instead of Trace in infblock.c -- in example.c use correct compressed length for test_sync -- suppress +vnocompatwarnings in configure for HPUX (not always supported) - -Changes in 1.0.7 (20 Jan 1998) -- fix gzseek which was broken in write mode -- return error for gzseek to negative absolute position -- fix configure for Linux (Chun-Chung Chen) -- increase stack space for MSC (Tim Wegner) -- get_crc_table and inflateSyncPoint are EXPORTed (Gilles Vollant) -- define EXPORTVA for gzprintf (Gilles Vollant) -- added man page zlib.3 (Rick Rodgers) -- for contrib/untgz, fix makedir() and improve Makefile - -- check gzseek in write mode in example.c -- allocate extra buffer for seeks only if gzseek is actually called -- avoid signed/unsigned comparisons (Tim Wegner, Gilles Vollant) -- add inflateSyncPoint in zconf.h -- fix list of exported functions in nt/zlib.dnt and mdsos/zlib.def - -Changes in 1.0.6 (19 Jan 1998) -- add functions gzprintf, gzputc, gzgetc, gztell, gzeof, gzseek, gzrewind and - gzsetparams (thanks to Roland Giersig and Kevin Ruland for some of this code) -- Fix a deflate bug occurring only with compression level 0 (thanks to - Andy Buckler for finding this one). -- In minigzip, pass transparently also the first byte for .Z files. -- return Z_BUF_ERROR instead of Z_OK if output buffer full in uncompress() -- check Z_FINISH in inflate (thanks to Marc Schluper) -- Implement deflateCopy (thanks to Adam Costello) -- make static libraries by default in configure, add --shared option. -- move MSDOS or Windows specific files to directory msdos -- suppress the notion of partial flush to simplify the interface - (but the symbol Z_PARTIAL_FLUSH is kept for compatibility with 1.0.4) -- suppress history buffer provided by application to simplify the interface - (this feature was not implemented anyway in 1.0.4) -- next_in and avail_in must be initialized before calling inflateInit or - inflateInit2 -- add EXPORT in all exported functions (for Windows DLL) -- added Makefile.nt (thanks to Stephen Williams) -- added the unsupported "contrib" directory: - contrib/asm386/ by Gilles Vollant - 386 asm code replacing longest_match(). - contrib/iostream/ by Kevin Ruland - A C++ I/O streams interface to the zlib gz* functions - contrib/iostream2/ by Tyge Løvset - Another C++ I/O streams interface - contrib/untgz/ by "Pedro A. Aranda Guti\irrez" - A very simple tar.gz file extractor using zlib - contrib/visual-basic.txt by Carlos Rios - How to use compress(), uncompress() and the gz* functions from VB. -- pass params -f (filtered data), -h (huffman only), -1 to -9 (compression - level) in minigzip (thanks to Tom Lane) - -- use const for rommable constants in deflate -- added test for gzseek and gztell in example.c -- add undocumented function inflateSyncPoint() (hack for Paul Mackerras) -- add undocumented function zError to convert error code to string - (for Tim Smithers) -- Allow compilation of gzio with -DNO_DEFLATE to avoid the compression code. -- Use default memcpy for Symantec MSDOS compiler. -- Add EXPORT keyword for check_func (needed for Windows DLL) -- add current directory to LD_LIBRARY_PATH for "make test" -- create also a link for libz.so.1 -- added support for FUJITSU UXP/DS (thanks to Toshiaki Nomura) -- use $(SHAREDLIB) instead of libz.so in Makefile.in (for HPUX) -- added -soname for Linux in configure (Chun-Chung Chen, -- assign numbers to the exported functions in zlib.def (for Windows DLL) -- add advice in zlib.h for best usage of deflateSetDictionary -- work around compiler bug on Atari (cast Z_NULL in call of s->checkfn) -- allow compilation with ANSI keywords only enabled for TurboC in large model -- avoid "versionString"[0] (Borland bug) -- add NEED_DUMMY_RETURN for Borland -- use variable z_verbose for tracing in debug mode (L. Peter Deutsch). -- allow compilation with CC -- defined STDC for OS/2 (David Charlap) -- limit external names to 8 chars for MVS (Thomas Lund) -- in minigzip.c, use static buffers only for 16-bit systems -- fix suffix check for "minigzip -d foo.gz" -- do not return an error for the 2nd of two consecutive gzflush() (Felix Lee) -- use _fdopen instead of fdopen for MSC >= 6.0 (Thomas Fanslau) -- added makelcc.bat for lcc-win32 (Tom St Denis) -- in Makefile.dj2, use copy and del instead of install and rm (Frank Donahoe) -- Avoid expanded $Id$. Use "rcs -kb" or "cvs admin -kb" to avoid Id expansion. -- check for unistd.h in configure (for off_t) -- remove useless check parameter in inflate_blocks_free -- avoid useless assignment of s->check to itself in inflate_blocks_new -- do not flush twice in gzclose (thanks to Ken Raeburn) -- rename FOPEN as F_OPEN to avoid clash with /usr/include/sys/file.h -- use NO_ERRNO_H instead of enumeration of operating systems with errno.h -- work around buggy fclose on pipes for HP/UX -- support zlib DLL with BORLAND C++ 5.0 (thanks to Glenn Randers-Pehrson) -- fix configure if CC is already equal to gcc - -Changes in 1.0.5 (3 Jan 98) -- Fix inflate to terminate gracefully when fed corrupted or invalid data -- Use const for rommable constants in inflate -- Eliminate memory leaks on error conditions in inflate -- Removed some vestigial code in inflate -- Update web address in README - -Changes in 1.0.4 (24 Jul 96) -- In very rare conditions, deflate(s, Z_FINISH) could fail to produce an EOF - bit, so the decompressor could decompress all the correct data but went - on to attempt decompressing extra garbage data. This affected minigzip too. -- zlibVersion and gzerror return const char* (needed for DLL) -- port to RISCOS (no fdopen, no multiple dots, no unlink, no fileno) -- use z_error only for DEBUG (avoid problem with DLLs) - -Changes in 1.0.3 (2 Jul 96) -- use z_streamp instead of z_stream *, which is now a far pointer in MSDOS - small and medium models; this makes the library incompatible with previous - versions for these models. (No effect in large model or on other systems.) -- return OK instead of BUF_ERROR if previous deflate call returned with - avail_out as zero but there is nothing to do -- added memcmp for non STDC compilers -- define NO_DUMMY_DECL for more Mac compilers (.h files merged incorrectly) -- define __32BIT__ if __386__ or i386 is defined (pb. with Watcom and SCO) -- better check for 16-bit mode MSC (avoids problem with Symantec) - -Changes in 1.0.2 (23 May 96) -- added Windows DLL support -- added a function zlibVersion (for the DLL support) -- fixed declarations using Bytef in infutil.c (pb with MSDOS medium model) -- Bytef is define's instead of typedef'd only for Borland C -- avoid reading uninitialized memory in example.c -- mention in README that the zlib format is now RFC1950 -- updated Makefile.dj2 -- added algorithm.doc - -Changes in 1.0.1 (20 May 96) [1.0 skipped to avoid confusion] -- fix array overlay in deflate.c which sometimes caused bad compressed data -- fix inflate bug with empty stored block -- fix MSDOS medium model which was broken in 0.99 -- fix deflateParams() which could generated bad compressed data. -- Bytef is define'd instead of typedef'ed (work around Borland bug) -- added an INDEX file -- new makefiles for DJGPP (Makefile.dj2), 32-bit Borland (Makefile.b32), - Watcom (Makefile.wat), Amiga SAS/C (Makefile.sas) -- speed up adler32 for modern machines without auto-increment -- added -ansi for IRIX in configure -- static_init_done in trees.c is an int -- define unlink as delete for VMS -- fix configure for QNX -- add configure branch for SCO and HPUX -- avoid many warnings (unused variables, dead assignments, etc...) -- no fdopen for BeOS -- fix the Watcom fix for 32 bit mode (define FAR as empty) -- removed redefinition of Byte for MKWERKS -- work around an MWKERKS bug (incorrect merge of all .h files) - -Changes in 0.99 (27 Jan 96) -- allow preset dictionary shared between compressor and decompressor -- allow compression level 0 (no compression) -- add deflateParams in zlib.h: allow dynamic change of compression level - and compression strategy. -- test large buffers and deflateParams in example.c -- add optional "configure" to build zlib as a shared library -- suppress Makefile.qnx, use configure instead -- fixed deflate for 64-bit systems (detected on Cray) -- fixed inflate_blocks for 64-bit systems (detected on Alpha) -- declare Z_DEFLATED in zlib.h (possible parameter for deflateInit2) -- always return Z_BUF_ERROR when deflate() has nothing to do -- deflateInit and inflateInit are now macros to allow version checking -- prefix all global functions and types with z_ with -DZ_PREFIX -- make falloc completely reentrant (inftrees.c) -- fixed very unlikely race condition in ct_static_init -- free in reverse order of allocation to help memory manager -- use zlib-1.0/* instead of zlib/* inside the tar.gz -- make zlib warning-free with "gcc -O3 -Wall -Wwrite-strings -Wpointer-arith - -Wconversion -Wstrict-prototypes -Wmissing-prototypes" -- allow gzread on concatenated .gz files -- deflateEnd now returns Z_DATA_ERROR if it was premature -- deflate is finally (?) fully deterministic (no matches beyond end of input) -- Document Z_SYNC_FLUSH -- add uninstall in Makefile -- Check for __cpluplus in zlib.h -- Better test in ct_align for partial flush -- avoid harmless warnings for Borland C++ -- initialize hash_head in deflate.c -- avoid warning on fdopen (gzio.c) for HP cc -Aa -- include stdlib.h for STDC compilers -- include errno.h for Cray -- ignore error if ranlib doesn't exist -- call ranlib twice for NeXTSTEP -- use exec_prefix instead of prefix for libz.a -- renamed ct_* as _tr_* to avoid conflict with applications -- clear z->msg in inflateInit2 before any error return -- initialize opaque in example.c, gzio.c, deflate.c and inflate.c -- fixed typo in zconf.h (_GNUC__ => __GNUC__) -- check for WIN32 in zconf.h and zutil.c (avoid farmalloc in 32-bit mode) -- fix typo in Make_vms.com (f$trnlnm -> f$getsyi) -- in fcalloc, normalize pointer if size > 65520 bytes -- don't use special fcalloc for 32 bit Borland C++ -- use STDC instead of __GO32__ to avoid redeclaring exit, calloc, etc... -- use Z_BINARY instead of BINARY -- document that gzclose after gzdopen will close the file -- allow "a" as mode in gzopen. -- fix error checking in gzread -- allow skipping .gz extra-field on pipes -- added reference to Perl interface in README -- put the crc table in FAR data (I dislike more and more the medium model :) -- added get_crc_table -- added a dimension to all arrays (Borland C can't count). -- workaround Borland C bug in declaration of inflate_codes_new & inflate_fast -- guard against multiple inclusion of *.h (for precompiled header on Mac) -- Watcom C pretends to be Microsoft C small model even in 32 bit mode. -- don't use unsized arrays to avoid silly warnings by Visual C++: - warning C4746: 'inflate_mask' : unsized array treated as '__far' - (what's wrong with far data in far model?). -- define enum out of inflate_blocks_state to allow compilation with C++ - -Changes in 0.95 (16 Aug 95) -- fix MSDOS small and medium model (now easier to adapt to any compiler) -- inlined send_bits -- fix the final (:-) bug for deflate with flush (output was correct but - not completely flushed in rare occasions). -- default window size is same for compression and decompression - (it's now sufficient to set MAX_WBITS in zconf.h). -- voidp -> voidpf and voidnp -> voidp (for consistency with other - typedefs and because voidnp was not near in large model). - -Changes in 0.94 (13 Aug 95) -- support MSDOS medium model -- fix deflate with flush (could sometimes generate bad output) -- fix deflateReset (zlib header was incorrectly suppressed) -- added support for VMS -- allow a compression level in gzopen() -- gzflush now calls fflush -- For deflate with flush, flush even if no more input is provided. -- rename libgz.a as libz.a -- avoid complex expression in infcodes.c triggering Turbo C bug -- work around a problem with gcc on Alpha (in INSERT_STRING) -- don't use inline functions (problem with some gcc versions) -- allow renaming of Byte, uInt, etc... with #define. -- avoid warning about (unused) pointer before start of array in deflate.c -- avoid various warnings in gzio.c, example.c, infblock.c, adler32.c, zutil.c -- avoid reserved word 'new' in trees.c - -Changes in 0.93 (25 June 95) -- temporarily disable inline functions -- make deflate deterministic -- give enough lookahead for PARTIAL_FLUSH -- Set binary mode for stdin/stdout in minigzip.c for OS/2 -- don't even use signed char in inflate (not portable enough) -- fix inflate memory leak for segmented architectures - -Changes in 0.92 (3 May 95) -- don't assume that char is signed (problem on SGI) -- Clear bit buffer when starting a stored block -- no memcpy on Pyramid -- suppressed inftest.c -- optimized fill_window, put longest_match inline for gcc -- optimized inflate on stored blocks. -- untabify all sources to simplify patches - -Changes in 0.91 (2 May 95) -- Default MEM_LEVEL is 8 (not 9 for Unix) as documented in zlib.h -- Document the memory requirements in zconf.h -- added "make install" -- fix sync search logic in inflateSync -- deflate(Z_FULL_FLUSH) now works even if output buffer too short -- after inflateSync, don't scare people with just "lo world" -- added support for DJGPP - -Changes in 0.9 (1 May 95) -- don't assume that zalloc clears the allocated memory (the TurboC bug - was Mark's bug after all :) -- let again gzread copy uncompressed data unchanged (was working in 0.71) -- deflate(Z_FULL_FLUSH), inflateReset and inflateSync are now fully implemented -- added a test of inflateSync in example.c -- moved MAX_WBITS to zconf.h because users might want to change that. -- document explicitly that zalloc(64K) on MSDOS must return a normalized - pointer (zero offset) -- added Makefiles for Microsoft C, Turbo C, Borland C++ -- faster crc32() - -Changes in 0.8 (29 April 95) -- added fast inflate (inffast.c) -- deflate(Z_FINISH) now returns Z_STREAM_END when done. Warning: this - is incompatible with previous versions of zlib which returned Z_OK. -- work around a TurboC compiler bug (bad code for b << 0, see infutil.h) - (actually that was not a compiler bug, see 0.81 above) -- gzread no longer reads one extra byte in certain cases -- In gzio destroy(), don't reference a freed structure -- avoid many warnings for MSDOS -- avoid the ERROR symbol which is used by MS Windows - -Changes in 0.71 (14 April 95) -- Fixed more MSDOS compilation problems :( There is still a bug with - TurboC large model. - -Changes in 0.7 (14 April 95) -- Added full inflate support. -- Simplified the crc32() interface. The pre- and post-conditioning - (one's complement) is now done inside crc32(). WARNING: this is - incompatible with previous versions; see zlib.h for the new usage. - -Changes in 0.61 (12 April 95) -- workaround for a bug in TurboC. example and minigzip now work on MSDOS. - -Changes in 0.6 (11 April 95) -- added minigzip.c -- added gzdopen to reopen a file descriptor as gzFile -- added transparent reading of non-gziped files in gzread. -- fixed bug in gzread (don't read crc as data) -- fixed bug in destroy (gzio.c) (don't return Z_STREAM_END for gzclose). -- don't allocate big arrays in the stack (for MSDOS) -- fix some MSDOS compilation problems - -Changes in 0.5: -- do real compression in deflate.c. Z_PARTIAL_FLUSH is supported but - not yet Z_FULL_FLUSH. -- support decompression but only in a single step (forced Z_FINISH) -- added opaque object for zalloc and zfree. -- added deflateReset and inflateReset -- added a variable zlib_version for consistency checking. -- renamed the 'filter' parameter of deflateInit2 as 'strategy'. - Added Z_FILTERED and Z_HUFFMAN_ONLY constants. - -Changes in 0.4: -- avoid "zip" everywhere, use zlib instead of ziplib. -- suppress Z_BLOCK_FLUSH, interpret Z_PARTIAL_FLUSH as block flush - if compression method == 8. -- added adler32 and crc32 -- renamed deflateOptions as deflateInit2, call one or the other but not both -- added the method parameter for deflateInit2. -- added inflateInit2 -- simplied considerably deflateInit and inflateInit by not supporting - user-provided history buffer. This is supported only in deflateInit2 - and inflateInit2. - -Changes in 0.3: -- prefix all macro names with Z_ -- use Z_FINISH instead of deflateEnd to finish compression. -- added Z_HUFFMAN_ONLY -- added gzerror() diff --git a/src/3rdParty/CxImage/zlib/FAQ b/src/3rdParty/CxImage/zlib/FAQ deleted file mode 100644 index 15d043615e..0000000000 --- a/src/3rdParty/CxImage/zlib/FAQ +++ /dev/null @@ -1,339 +0,0 @@ - - Frequently Asked Questions about zlib - - -If your question is not there, please check the zlib home page -http://www.zlib.org which may have more recent information. -The lastest zlib FAQ is at http://www.gzip.org/zlib/zlib_faq.html - - - 1. Is zlib Y2K-compliant? - - Yes. zlib doesn't handle dates. - - 2. Where can I get a Windows DLL version? - - The zlib sources can be compiled without change to produce a DLL. - See the file win32/DLL_FAQ.txt in the zlib distribution. - Pointers to the precompiled DLL are found in the zlib web site at - http://www.zlib.org. - - 3. Where can I get a Visual Basic interface to zlib? - - See - * http://www.dogma.net/markn/articles/zlibtool/zlibtool.htm - * contrib/visual-basic.txt in the zlib distribution - * win32/DLL_FAQ.txt in the zlib distribution - - 4. compress() returns Z_BUF_ERROR. - - Make sure that before the call of compress, the length of the compressed - buffer is equal to the total size of the compressed buffer and not - zero. For Visual Basic, check that this parameter is passed by reference - ("as any"), not by value ("as long"). - - 5. deflate() or inflate() returns Z_BUF_ERROR. - - Before making the call, make sure that avail_in and avail_out are not - zero. When setting the parameter flush equal to Z_FINISH, also make sure - that avail_out is big enough to allow processing all pending input. - Note that a Z_BUF_ERROR is not fatal--another call to deflate() or - inflate() can be made with more input or output space. A Z_BUF_ERROR - may in fact be unavoidable depending on how the functions are used, since - it is not possible to tell whether or not there is more output pending - when strm.avail_out returns with zero. - - 6. Where's the zlib documentation (man pages, etc.)? - - It's in zlib.h for the moment, and Francis S. Lin has converted it to a - web page zlib.html. Volunteers to transform this to Unix-style man pages, - please contact us (zlib@gzip.org). Examples of zlib usage are in the files - example.c and minigzip.c. - - 7. Why don't you use GNU autoconf or libtool or ...? - - Because we would like to keep zlib as a very small and simple - package. zlib is rather portable and doesn't need much configuration. - - 8. I found a bug in zlib. - - Most of the time, such problems are due to an incorrect usage of - zlib. Please try to reproduce the problem with a small program and send - the corresponding source to us at zlib@gzip.org . Do not send - multi-megabyte data files without prior agreement. - - 9. Why do I get "undefined reference to gzputc"? - - If "make test" produces something like - - example.o(.text+0x154): undefined reference to `gzputc' - - check that you don't have old files libz.* in /usr/lib, /usr/local/lib or - /usr/X11R6/lib. Remove any old versions, then do "make install". - -10. I need a Delphi interface to zlib. - - See the contrib/delphi directory in the zlib distribution. - -11. Can zlib handle .zip archives? - - Not by itself, no. See the directory contrib/minizip in the zlib - distribution. - -12. Can zlib handle .Z files? - - No, sorry. You have to spawn an uncompress or gunzip subprocess, or adapt - the code of uncompress on your own. - -13. How can I make a Unix shared library? - - make clean - ./configure -s - make - -14. How do I install a shared zlib library on Unix? - - After the above, then: - - make install - - However, many flavors of Unix come with a shared zlib already installed. - Before going to the trouble of compiling a shared version of zlib and - trying to install it, you may want to check if it's already there! If you - can #include , it's there. The -lz option will probably link to it. - -15. I have a question about OttoPDF. - - We are not the authors of OttoPDF. The real author is on the OttoPDF web - site: Joel Hainley, jhainley@myndkryme.com. - -16. Can zlib decode Flate data in an Adobe PDF file? - - Yes. See http://www.fastio.com/ (ClibPDF), or http://www.pdflib.com/ . - To modify PDF forms, see http://sourceforge.net/projects/acroformtool/ . - -17. Why am I getting this "register_frame_info not found" error on Solaris? - - After installing zlib 1.1.4 on Solaris 2.6, running applications using zlib - generates an error such as: - - ld.so.1: rpm: fatal: relocation error: file /usr/local/lib/libz.so: - symbol __register_frame_info: referenced symbol not found - - The symbol __register_frame_info is not part of zlib, it is generated by - the C compiler (cc or gcc). You must recompile applications using zlib - which have this problem. This problem is specific to Solaris. See - http://www.sunfreeware.com for Solaris versions of zlib and applications - using zlib. - -18. Why does gzip give an error on a file I make with compress/deflate? - - The compress and deflate functions produce data in the zlib format, which - is different and incompatible with the gzip format. The gz* functions in - zlib on the other hand use the gzip format. Both the zlib and gzip - formats use the same compressed data format internally, but have different - headers and trailers around the compressed data. - -19. Ok, so why are there two different formats? - - The gzip format was designed to retain the directory information about - a single file, such as the name and last modification date. The zlib - format on the other hand was designed for in-memory and communication - channel applications, and has a much more compact header and trailer and - uses a faster integrity check than gzip. - -20. Well that's nice, but how do I make a gzip file in memory? - - You can request that deflate write the gzip format instead of the zlib - format using deflateInit2(). You can also request that inflate decode - the gzip format using inflateInit2(). Read zlib.h for more details. - -21. Is zlib thread-safe? - - Yes. However any library routines that zlib uses and any application- - provided memory allocation routines must also be thread-safe. zlib's gz* - functions use stdio library routines, and most of zlib's functions use the - library memory allocation routines by default. zlib's Init functions allow - for the application to provide custom memory allocation routines. - - Of course, you should only operate on any given zlib or gzip stream from a - single thread at a time. - -22. Can I use zlib in my commercial application? - - Yes. Please read the license in zlib.h. - -23. Is zlib under the GNU license? - - No. Please read the license in zlib.h. - -24. The license says that altered source versions must be "plainly marked". So - what exactly do I need to do to meet that requirement? - - You need to change the ZLIB_VERSION and ZLIB_VERNUM #defines in zlib.h. In - particular, the final version number needs to be changed to "f", and an - identification string should be appended to ZLIB_VERSION. Version numbers - x.x.x.f are reserved for modifications to zlib by others than the zlib - maintainers. For example, if the version of the base zlib you are altering - is "1.2.3.4", then in zlib.h you should change ZLIB_VERNUM to 0x123f, and - ZLIB_VERSION to something like "1.2.3.f-zachary-mods-v3". You can also - update the version strings in deflate.c and inftrees.c. - - For altered source distributions, you should also note the origin and - nature of the changes in zlib.h, as well as in ChangeLog and README, along - with the dates of the alterations. The origin should include at least your - name (or your company's name), and an email address to contact for help or - issues with the library. - - Note that distributing a compiled zlib library along with zlib.h and - zconf.h is also a source distribution, and so you should change - ZLIB_VERSION and ZLIB_VERNUM and note the origin and nature of the changes - in zlib.h as you would for a full source distribution. - -25. Will zlib work on a big-endian or little-endian architecture, and can I - exchange compressed data between them? - - Yes and yes. - -26. Will zlib work on a 64-bit machine? - - It should. It has been tested on 64-bit machines, and has no dependence - on any data types being limited to 32-bits in length. If you have any - difficulties, please provide a complete problem report to zlib@gzip.org - -27. Will zlib decompress data from the PKWare Data Compression Library? - - No. The PKWare DCL uses a completely different compressed data format - than does PKZIP and zlib. However, you can look in zlib's contrib/blast - directory for a possible solution to your problem. - -28. Can I access data randomly in a compressed stream? - - No, not without some preparation. If when compressing you periodically - use Z_FULL_FLUSH, carefully write all the pending data at those points, - and keep an index of those locations, then you can start decompression - at those points. You have to be careful to not use Z_FULL_FLUSH too - often, since it can significantly degrade compression. - -29. Does zlib work on MVS, OS/390, CICS, etc.? - - We don't know for sure. We have heard occasional reports of success on - these systems. If you do use it on one of these, please provide us with - a report, instructions, and patches that we can reference when we get - these questions. Thanks. - -30. Is there some simpler, easier to read version of inflate I can look at - to understand the deflate format? - - First off, you should read RFC 1951. Second, yes. Look in zlib's - contrib/puff directory. - -31. Does zlib infringe on any patents? - - As far as we know, no. In fact, that was originally the whole point behind - zlib. Look here for some more information: - - http://www.gzip.org/#faq11 - -32. Can zlib work with greater than 4 GB of data? - - Yes. inflate() and deflate() will process any amount of data correctly. - Each call of inflate() or deflate() is limited to input and output chunks - of the maximum value that can be stored in the compiler's "unsigned int" - type, but there is no limit to the number of chunks. Note however that the - strm.total_in and strm_total_out counters may be limited to 4 GB. These - counters are provided as a convenience and are not used internally by - inflate() or deflate(). The application can easily set up its own counters - updated after each call of inflate() or deflate() to count beyond 4 GB. - compress() and uncompress() may be limited to 4 GB, since they operate in a - single call. gzseek() and gztell() may be limited to 4 GB depending on how - zlib is compiled. See the zlibCompileFlags() function in zlib.h. - - The word "may" appears several times above since there is a 4 GB limit - only if the compiler's "long" type is 32 bits. If the compiler's "long" - type is 64 bits, then the limit is 16 exabytes. - -33. Does zlib have any security vulnerabilities? - - The only one that we are aware of is potentially in gzprintf(). If zlib - is compiled to use sprintf() or vsprintf(), then there is no protection - against a buffer overflow of a 4K string space, other than the caller of - gzprintf() assuring that the output will not exceed 4K. On the other - hand, if zlib is compiled to use snprintf() or vsnprintf(), which should - normally be the case, then there is no vulnerability. The ./configure - script will display warnings if an insecure variation of sprintf() will - be used by gzprintf(). Also the zlibCompileFlags() function will return - information on what variant of sprintf() is used by gzprintf(). - - If you don't have snprintf() or vsnprintf() and would like one, you can - find a portable implementation here: - - http://www.ijs.si/software/snprintf/ - - Note that you should be using the most recent version of zlib. Versions - 1.1.3 and before were subject to a double-free vulnerability. - -34. Is there a Java version of zlib? - - Probably what you want is to use zlib in Java. zlib is already included - as part of the Java SDK in the java.util.zip package. If you really want - a version of zlib written in the Java language, look on the zlib home - page for links: http://www.zlib.org/ - -35. I get this or that compiler or source-code scanner warning when I crank it - up to maximally-pedantic. Can't you guys write proper code? - - Many years ago, we gave up attempting to avoid warnings on every compiler - in the universe. It just got to be a waste of time, and some compilers - were downright silly. So now, we simply make sure that the code always - works. - -36. Valgrind (or some similar memory access checker) says that deflate is - performing a conditional jump that depends on an uninitialized value. - Isn't that a bug? - - No. That is intentional for performance reasons, and the output of - deflate is not affected. This only started showing up recently since - zlib 1.2.x uses malloc() by default for allocations, whereas earlier - versions used calloc(), which zeros out the allocated memory. - -37. Will zlib read the (insert any ancient or arcane format here) compressed - data format? - - Probably not. Look in the comp.compression FAQ for pointers to various - formats and associated software. - -38. How can I encrypt/decrypt zip files with zlib? - - zlib doesn't support encryption. The original PKZIP encryption is very weak - and can be broken with freely available programs. To get strong encryption, - use GnuPG, http://www.gnupg.org/ , which already includes zlib compression. - For PKZIP compatible "encryption", look at http://www.info-zip.org/ - -39. What's the difference between the "gzip" and "deflate" HTTP 1.1 encodings? - - "gzip" is the gzip format, and "deflate" is the zlib format. They should - probably have called the second one "zlib" instead to avoid confusion - with the raw deflate compressed data format. While the HTTP 1.1 RFC 2616 - correctly points to the zlib specification in RFC 1950 for the "deflate" - transfer encoding, there have been reports of servers and browsers that - incorrectly produce or expect raw deflate data per the deflate - specficiation in RFC 1951, most notably Microsoft. So even though the - "deflate" transfer encoding using the zlib format would be the more - efficient approach (and in fact exactly what the zlib format was designed - for), using the "gzip" transfer encoding is probably more reliable due to - an unfortunate choice of name on the part of the HTTP 1.1 authors. - - Bottom line: use the gzip format for HTTP 1.1 encoding. - -40. Does zlib support the new "Deflate64" format introduced by PKWare? - - No. PKWare has apparently decided to keep that format proprietary, since - they have not documented it as they have previous compression formats. - In any case, the compression improvements are so modest compared to other - more modern approaches, that it's not worth the effort to implement. - -41. Can you please sign these lengthy legal documents and fax them back to us - so that we can use your software in our product? - - No. Go away. Shoo. diff --git a/src/3rdParty/CxImage/zlib/README b/src/3rdParty/CxImage/zlib/README deleted file mode 100644 index 80f71ae856..0000000000 --- a/src/3rdParty/CxImage/zlib/README +++ /dev/null @@ -1,125 +0,0 @@ -ZLIB DATA COMPRESSION LIBRARY - -zlib 1.2.3 is a general purpose data compression library. All the code is -thread safe. The data format used by the zlib library is described by RFCs -(Request for Comments) 1950 to 1952 in the files -http://www.ietf.org/rfc/rfc1950.txt (zlib format), rfc1951.txt (deflate format) -and rfc1952.txt (gzip format). These documents are also available in other -formats from ftp://ftp.uu.net/graphics/png/documents/zlib/zdoc-index.html - -All functions of the compression library are documented in the file zlib.h -(volunteer to write man pages welcome, contact zlib@gzip.org). A usage example -of the library is given in the file example.c which also tests that the library -is working correctly. Another example is given in the file minigzip.c. The -compression library itself is composed of all source files except example.c and -minigzip.c. - -To compile all files and run the test program, follow the instructions given at -the top of Makefile. In short "make test; make install" should work for most -machines. For Unix: "./configure; make test; make install". For MSDOS, use one -of the special makefiles such as Makefile.msc. For VMS, use make_vms.com. - -Questions about zlib should be sent to , or to Gilles Vollant - for the Windows DLL version. The zlib home page is -http://www.zlib.org or http://www.gzip.org/zlib/ Before reporting a problem, -please check this site to verify that you have the latest version of zlib; -otherwise get the latest version and check whether the problem still exists or -not. - -PLEASE read the zlib FAQ http://www.gzip.org/zlib/zlib_faq.html before asking -for help. - -Mark Nelson wrote an article about zlib for the Jan. 1997 -issue of Dr. Dobb's Journal; a copy of the article is available in -http://dogma.net/markn/articles/zlibtool/zlibtool.htm - -The changes made in version 1.2.3 are documented in the file ChangeLog. - -Unsupported third party contributions are provided in directory "contrib". - -A Java implementation of zlib is available in the Java Development Kit -http://java.sun.com/j2se/1.4.2/docs/api/java/util/zip/package-summary.html -See the zlib home page http://www.zlib.org for details. - -A Perl interface to zlib written by Paul Marquess is in the -CPAN (Comprehensive Perl Archive Network) sites -http://www.cpan.org/modules/by-module/Compress/ - -A Python interface to zlib written by A.M. Kuchling is -available in Python 1.5 and later versions, see -http://www.python.org/doc/lib/module-zlib.html - -A zlib binding for TCL written by Andreas Kupries is -availlable at http://www.oche.de/~akupries/soft/trf/trf_zip.html - -An experimental package to read and write files in .zip format, written on top -of zlib by Gilles Vollant , is available in the -contrib/minizip directory of zlib. - - -Notes for some targets: - -- For Windows DLL versions, please see win32/DLL_FAQ.txt - -- For 64-bit Irix, deflate.c must be compiled without any optimization. With - -O, one libpng test fails. The test works in 32 bit mode (with the -n32 - compiler flag). The compiler bug has been reported to SGI. - -- zlib doesn't work with gcc 2.6.3 on a DEC 3000/300LX under OSF/1 2.1 it works - when compiled with cc. - -- On Digital Unix 4.0D (formely OSF/1) on AlphaServer, the cc option -std1 is - necessary to get gzprintf working correctly. This is done by configure. - -- zlib doesn't work on HP-UX 9.05 with some versions of /bin/cc. It works with - other compilers. Use "make test" to check your compiler. - -- gzdopen is not supported on RISCOS, BEOS and by some Mac compilers. - -- For PalmOs, see http://palmzlib.sourceforge.net/ - -- When building a shared, i.e. dynamic library on Mac OS X, the library must be - installed before testing (do "make install" before "make test"), since the - library location is specified in the library. - - -Acknowledgments: - - The deflate format used by zlib was defined by Phil Katz. The deflate - and zlib specifications were written by L. Peter Deutsch. Thanks to all the - people who reported problems and suggested various improvements in zlib; - they are too numerous to cite here. - -Copyright notice: - - (C) 1995-2004 Jean-loup Gailly and Mark Adler - - This software is provided 'as-is', without any express or implied - warranty. In no event will the authors be held liable for any damages - arising from the use of this software. - - Permission is granted to anyone to use this software for any purpose, - including commercial applications, and to alter it and redistribute it - freely, subject to the following restrictions: - - 1. The origin of this software must not be misrepresented; you must not - claim that you wrote the original software. If you use this software - in a product, an acknowledgment in the product documentation would be - appreciated but is not required. - 2. Altered source versions must be plainly marked as such, and must not be - misrepresented as being the original software. - 3. This notice may not be removed or altered from any source distribution. - - Jean-loup Gailly Mark Adler - jloup@gzip.org madler@alumni.caltech.edu - -If you use the zlib library in a product, we would appreciate *not* -receiving lengthy legal documents to sign. The sources are provided -for free but without warranty of any kind. The library has been -entirely written by Jean-loup Gailly and Mark Adler; it does not -include third-party code. - -If you redistribute modified sources, we would appreciate that you include -in the file ChangeLog history information documenting your changes. Please -read the FAQ for more information on the distribution of modified source -versions. diff --git a/src/3rdParty/CxImage/zlib/adler32.c b/src/3rdParty/CxImage/zlib/adler32.c deleted file mode 100644 index f201d6701e..0000000000 --- a/src/3rdParty/CxImage/zlib/adler32.c +++ /dev/null @@ -1,149 +0,0 @@ -/* adler32.c -- compute the Adler-32 checksum of a data stream - * Copyright (C) 1995-2004 Mark Adler - * For conditions of distribution and use, see copyright notice in zlib.h - */ - -/* @(#) $Id$ */ - -#define ZLIB_INTERNAL -#include "zlib.h" - -#define BASE 65521UL /* largest prime smaller than 65536 */ -#define NMAX 5552 -/* NMAX is the largest n such that 255n(n+1)/2 + (n+1)(BASE-1) <= 2^32-1 */ - -#define DO1(buf,i) {adler += (buf)[i]; sum2 += adler;} -#define DO2(buf,i) DO1(buf,i); DO1(buf,i+1); -#define DO4(buf,i) DO2(buf,i); DO2(buf,i+2); -#define DO8(buf,i) DO4(buf,i); DO4(buf,i+4); -#define DO16(buf) DO8(buf,0); DO8(buf,8); - -/* use NO_DIVIDE if your processor does not do division in hardware */ -#ifdef NO_DIVIDE -# define MOD(a) \ - do { \ - if (a >= (BASE << 16)) a -= (BASE << 16); \ - if (a >= (BASE << 15)) a -= (BASE << 15); \ - if (a >= (BASE << 14)) a -= (BASE << 14); \ - if (a >= (BASE << 13)) a -= (BASE << 13); \ - if (a >= (BASE << 12)) a -= (BASE << 12); \ - if (a >= (BASE << 11)) a -= (BASE << 11); \ - if (a >= (BASE << 10)) a -= (BASE << 10); \ - if (a >= (BASE << 9)) a -= (BASE << 9); \ - if (a >= (BASE << 8)) a -= (BASE << 8); \ - if (a >= (BASE << 7)) a -= (BASE << 7); \ - if (a >= (BASE << 6)) a -= (BASE << 6); \ - if (a >= (BASE << 5)) a -= (BASE << 5); \ - if (a >= (BASE << 4)) a -= (BASE << 4); \ - if (a >= (BASE << 3)) a -= (BASE << 3); \ - if (a >= (BASE << 2)) a -= (BASE << 2); \ - if (a >= (BASE << 1)) a -= (BASE << 1); \ - if (a >= BASE) a -= BASE; \ - } while (0) -# define MOD4(a) \ - do { \ - if (a >= (BASE << 4)) a -= (BASE << 4); \ - if (a >= (BASE << 3)) a -= (BASE << 3); \ - if (a >= (BASE << 2)) a -= (BASE << 2); \ - if (a >= (BASE << 1)) a -= (BASE << 1); \ - if (a >= BASE) a -= BASE; \ - } while (0) -#else -# define MOD(a) a %= BASE -# define MOD4(a) a %= BASE -#endif - -/* ========================================================================= */ -uLong ZEXPORT adler32(adler, buf, len) - uLong adler; - const Bytef *buf; - uInt len; -{ - unsigned long sum2; - unsigned n; - - /* split Adler-32 into component sums */ - sum2 = (adler >> 16) & 0xffff; - adler &= 0xffff; - - /* in case user likes doing a byte at a time, keep it fast */ - if (len == 1) { - adler += buf[0]; - if (adler >= BASE) - adler -= BASE; - sum2 += adler; - if (sum2 >= BASE) - sum2 -= BASE; - return adler | (sum2 << 16); - } - - /* initial Adler-32 value (deferred check for len == 1 speed) */ - if (buf == Z_NULL) - return 1L; - - /* in case short lengths are provided, keep it somewhat fast */ - if (len < 16) { - while (len--) { - adler += *buf++; - sum2 += adler; - } - if (adler >= BASE) - adler -= BASE; - MOD4(sum2); /* only added so many BASE's */ - return adler | (sum2 << 16); - } - - /* do length NMAX blocks -- requires just one modulo operation */ - while (len >= NMAX) { - len -= NMAX; - n = NMAX / 16; /* NMAX is divisible by 16 */ - do { - DO16(buf); /* 16 sums unrolled */ - buf += 16; - } while (--n); - MOD(adler); - MOD(sum2); - } - - /* do remaining bytes (less than NMAX, still just one modulo) */ - if (len) { /* avoid modulos if none remaining */ - while (len >= 16) { - len -= 16; - DO16(buf); - buf += 16; - } - while (len--) { - adler += *buf++; - sum2 += adler; - } - MOD(adler); - MOD(sum2); - } - - /* return recombined sums */ - return adler | (sum2 << 16); -} - -/* ========================================================================= */ -uLong ZEXPORT adler32_combine(adler1, adler2, len2) - uLong adler1; - uLong adler2; - z_off_t len2; -{ - unsigned long sum1; - unsigned long sum2; - unsigned rem; - - /* the derivation of this formula is left as an exercise for the reader */ - rem = (unsigned)(len2 % BASE); - sum1 = adler1 & 0xffff; - sum2 = rem * sum1; - MOD(sum2); - sum1 += (adler2 & 0xffff) + BASE - 1; - sum2 += ((adler1 >> 16) & 0xffff) + ((adler2 >> 16) & 0xffff) + BASE - rem; - if (sum1 > BASE) sum1 -= BASE; - if (sum1 > BASE) sum1 -= BASE; - if (sum2 > (BASE << 1)) sum2 -= (BASE << 1); - if (sum2 > BASE) sum2 -= BASE; - return sum1 | (sum2 << 16); -} diff --git a/src/3rdParty/CxImage/zlib/algorithm.txt b/src/3rdParty/CxImage/zlib/algorithm.txt deleted file mode 100644 index 9f6b06808c..0000000000 --- a/src/3rdParty/CxImage/zlib/algorithm.txt +++ /dev/null @@ -1,209 +0,0 @@ -1. Compression algorithm (deflate) - -The deflation algorithm used by gzip (also zip and zlib) is a variation of -LZ77 (Lempel-Ziv 1977, see reference below). It finds duplicated strings in -the input data. The second occurrence of a string is replaced by a -pointer to the previous string, in the form of a pair (distance, -length). Distances are limited to 32K bytes, and lengths are limited -to 258 bytes. When a string does not occur anywhere in the previous -32K bytes, it is emitted as a sequence of literal bytes. (In this -description, `string' must be taken as an arbitrary sequence of bytes, -and is not restricted to printable characters.) - -Literals or match lengths are compressed with one Huffman tree, and -match distances are compressed with another tree. The trees are stored -in a compact form at the start of each block. The blocks can have any -size (except that the compressed data for one block must fit in -available memory). A block is terminated when deflate() determines that -it would be useful to start another block with fresh trees. (This is -somewhat similar to the behavior of LZW-based _compress_.) - -Duplicated strings are found using a hash table. All input strings of -length 3 are inserted in the hash table. A hash index is computed for -the next 3 bytes. If the hash chain for this index is not empty, all -strings in the chain are compared with the current input string, and -the longest match is selected. - -The hash chains are searched starting with the most recent strings, to -favor small distances and thus take advantage of the Huffman encoding. -The hash chains are singly linked. There are no deletions from the -hash chains, the algorithm simply discards matches that are too old. - -To avoid a worst-case situation, very long hash chains are arbitrarily -truncated at a certain length, determined by a runtime option (level -parameter of deflateInit). So deflate() does not always find the longest -possible match but generally finds a match which is long enough. - -deflate() also defers the selection of matches with a lazy evaluation -mechanism. After a match of length N has been found, deflate() searches for -a longer match at the next input byte. If a longer match is found, the -previous match is truncated to a length of one (thus producing a single -literal byte) and the process of lazy evaluation begins again. Otherwise, -the original match is kept, and the next match search is attempted only N -steps later. - -The lazy match evaluation is also subject to a runtime parameter. If -the current match is long enough, deflate() reduces the search for a longer -match, thus speeding up the whole process. If compression ratio is more -important than speed, deflate() attempts a complete second search even if -the first match is already long enough. - -The lazy match evaluation is not performed for the fastest compression -modes (level parameter 1 to 3). For these fast modes, new strings -are inserted in the hash table only when no match was found, or -when the match is not too long. This degrades the compression ratio -but saves time since there are both fewer insertions and fewer searches. - - -2. Decompression algorithm (inflate) - -2.1 Introduction - -The key question is how to represent a Huffman code (or any prefix code) so -that you can decode fast. The most important characteristic is that shorter -codes are much more common than longer codes, so pay attention to decoding the -short codes fast, and let the long codes take longer to decode. - -inflate() sets up a first level table that covers some number of bits of -input less than the length of longest code. It gets that many bits from the -stream, and looks it up in the table. The table will tell if the next -code is that many bits or less and how many, and if it is, it will tell -the value, else it will point to the next level table for which inflate() -grabs more bits and tries to decode a longer code. - -How many bits to make the first lookup is a tradeoff between the time it -takes to decode and the time it takes to build the table. If building the -table took no time (and if you had infinite memory), then there would only -be a first level table to cover all the way to the longest code. However, -building the table ends up taking a lot longer for more bits since short -codes are replicated many times in such a table. What inflate() does is -simply to make the number of bits in the first table a variable, and then -to set that variable for the maximum speed. - -For inflate, which has 286 possible codes for the literal/length tree, the size -of the first table is nine bits. Also the distance trees have 30 possible -values, and the size of the first table is six bits. Note that for each of -those cases, the table ended up one bit longer than the ``average'' code -length, i.e. the code length of an approximately flat code which would be a -little more than eight bits for 286 symbols and a little less than five bits -for 30 symbols. - - -2.2 More details on the inflate table lookup - -Ok, you want to know what this cleverly obfuscated inflate tree actually -looks like. You are correct that it's not a Huffman tree. It is simply a -lookup table for the first, let's say, nine bits of a Huffman symbol. The -symbol could be as short as one bit or as long as 15 bits. If a particular -symbol is shorter than nine bits, then that symbol's translation is duplicated -in all those entries that start with that symbol's bits. For example, if the -symbol is four bits, then it's duplicated 32 times in a nine-bit table. If a -symbol is nine bits long, it appears in the table once. - -If the symbol is longer than nine bits, then that entry in the table points -to another similar table for the remaining bits. Again, there are duplicated -entries as needed. The idea is that most of the time the symbol will be short -and there will only be one table look up. (That's whole idea behind data -compression in the first place.) For the less frequent long symbols, there -will be two lookups. If you had a compression method with really long -symbols, you could have as many levels of lookups as is efficient. For -inflate, two is enough. - -So a table entry either points to another table (in which case nine bits in -the above example are gobbled), or it contains the translation for the symbol -and the number of bits to gobble. Then you start again with the next -ungobbled bit. - -You may wonder: why not just have one lookup table for how ever many bits the -longest symbol is? The reason is that if you do that, you end up spending -more time filling in duplicate symbol entries than you do actually decoding. -At least for deflate's output that generates new trees every several 10's of -kbytes. You can imagine that filling in a 2^15 entry table for a 15-bit code -would take too long if you're only decoding several thousand symbols. At the -other extreme, you could make a new table for every bit in the code. In fact, -that's essentially a Huffman tree. But then you spend two much time -traversing the tree while decoding, even for short symbols. - -So the number of bits for the first lookup table is a trade of the time to -fill out the table vs. the time spent looking at the second level and above of -the table. - -Here is an example, scaled down: - -The code being decoded, with 10 symbols, from 1 to 6 bits long: - -A: 0 -B: 10 -C: 1100 -D: 11010 -E: 11011 -F: 11100 -G: 11101 -H: 11110 -I: 111110 -J: 111111 - -Let's make the first table three bits long (eight entries): - -000: A,1 -001: A,1 -010: A,1 -011: A,1 -100: B,2 -101: B,2 -110: -> table X (gobble 3 bits) -111: -> table Y (gobble 3 bits) - -Each entry is what the bits decode as and how many bits that is, i.e. how -many bits to gobble. Or the entry points to another table, with the number of -bits to gobble implicit in the size of the table. - -Table X is two bits long since the longest code starting with 110 is five bits -long: - -00: C,1 -01: C,1 -10: D,2 -11: E,2 - -Table Y is three bits long since the longest code starting with 111 is six -bits long: - -000: F,2 -001: F,2 -010: G,2 -011: G,2 -100: H,2 -101: H,2 -110: I,3 -111: J,3 - -So what we have here are three tables with a total of 20 entries that had to -be constructed. That's compared to 64 entries for a single table. Or -compared to 16 entries for a Huffman tree (six two entry tables and one four -entry table). Assuming that the code ideally represents the probability of -the symbols, it takes on the average 1.25 lookups per symbol. That's compared -to one lookup for the single table, or 1.66 lookups per symbol for the -Huffman tree. - -There, I think that gives you a picture of what's going on. For inflate, the -meaning of a particular symbol is often more than just a letter. It can be a -byte (a "literal"), or it can be either a length or a distance which -indicates a base value and a number of bits to fetch after the code that is -added to the base value. Or it might be the special end-of-block code. The -data structures created in inftrees.c try to encode all that information -compactly in the tables. - - -Jean-loup Gailly Mark Adler -jloup@gzip.org madler@alumni.caltech.edu - - -References: - -[LZ77] Ziv J., Lempel A., ``A Universal Algorithm for Sequential Data -Compression,'' IEEE Transactions on Information Theory, Vol. 23, No. 3, -pp. 337-343. - -``DEFLATE Compressed Data Format Specification'' available in -http://www.ietf.org/rfc/rfc1951.txt diff --git a/src/3rdParty/CxImage/zlib/compress.c b/src/3rdParty/CxImage/zlib/compress.c deleted file mode 100644 index d37e84f5e3..0000000000 --- a/src/3rdParty/CxImage/zlib/compress.c +++ /dev/null @@ -1,79 +0,0 @@ -/* compress.c -- compress a memory buffer - * Copyright (C) 1995-2003 Jean-loup Gailly. - * For conditions of distribution and use, see copyright notice in zlib.h - */ - -/* @(#) $Id$ */ - -#define ZLIB_INTERNAL -#include "zlib.h" - -/* =========================================================================== - Compresses the source buffer into the destination buffer. The level - parameter has the same meaning as in deflateInit. sourceLen is the byte - length of the source buffer. Upon entry, destLen is the total size of the - destination buffer, which must be at least 0.1% larger than sourceLen plus - 12 bytes. Upon exit, destLen is the actual size of the compressed buffer. - - compress2 returns Z_OK if success, Z_MEM_ERROR if there was not enough - memory, Z_BUF_ERROR if there was not enough room in the output buffer, - Z_STREAM_ERROR if the level parameter is invalid. -*/ -int ZEXPORT compress2 (dest, destLen, source, sourceLen, level) - Bytef *dest; - uLongf *destLen; - const Bytef *source; - uLong sourceLen; - int level; -{ - z_stream stream; - int err; - - stream.next_in = (Bytef*)source; - stream.avail_in = (uInt)sourceLen; -#ifdef MAXSEG_64K - /* Check for source > 64K on 16-bit machine: */ - if ((uLong)stream.avail_in != sourceLen) return Z_BUF_ERROR; -#endif - stream.next_out = dest; - stream.avail_out = (uInt)*destLen; - if ((uLong)stream.avail_out != *destLen) return Z_BUF_ERROR; - - stream.zalloc = (alloc_func)0; - stream.zfree = (free_func)0; - stream.opaque = (voidpf)0; - - err = deflateInit(&stream, level); - if (err != Z_OK) return err; - - err = deflate(&stream, Z_FINISH); - if (err != Z_STREAM_END) { - deflateEnd(&stream); - return err == Z_OK ? Z_BUF_ERROR : err; - } - *destLen = stream.total_out; - - err = deflateEnd(&stream); - return err; -} - -/* =========================================================================== - */ -int ZEXPORT compress (dest, destLen, source, sourceLen) - Bytef *dest; - uLongf *destLen; - const Bytef *source; - uLong sourceLen; -{ - return compress2(dest, destLen, source, sourceLen, Z_DEFAULT_COMPRESSION); -} - -/* =========================================================================== - If the default memLevel or windowBits for deflateInit() is changed, then - this function needs to be updated. - */ -uLong ZEXPORT compressBound (sourceLen) - uLong sourceLen; -{ - return sourceLen + (sourceLen >> 12) + (sourceLen >> 14) + 11; -} diff --git a/src/3rdParty/CxImage/zlib/crc32.c b/src/3rdParty/CxImage/zlib/crc32.c deleted file mode 100644 index 32814c20c8..0000000000 --- a/src/3rdParty/CxImage/zlib/crc32.c +++ /dev/null @@ -1,423 +0,0 @@ -/* crc32.c -- compute the CRC-32 of a data stream - * Copyright (C) 1995-2005 Mark Adler - * For conditions of distribution and use, see copyright notice in zlib.h - * - * Thanks to Rodney Brown for his contribution of faster - * CRC methods: exclusive-oring 32 bits of data at a time, and pre-computing - * tables for updating the shift register in one step with three exclusive-ors - * instead of four steps with four exclusive-ors. This results in about a - * factor of two increase in speed on a Power PC G4 (PPC7455) using gcc -O3. - */ - -/* @(#) $Id$ */ - -/* - Note on the use of DYNAMIC_CRC_TABLE: there is no mutex or semaphore - protection on the static variables used to control the first-use generation - of the crc tables. Therefore, if you #define DYNAMIC_CRC_TABLE, you should - first call get_crc_table() to initialize the tables before allowing more than - one thread to use crc32(). - */ - -#ifdef MAKECRCH -# include -# ifndef DYNAMIC_CRC_TABLE -# define DYNAMIC_CRC_TABLE -# endif /* !DYNAMIC_CRC_TABLE */ -#endif /* MAKECRCH */ - -#include "zutil.h" /* for STDC and FAR definitions */ - -#define local static - -/* Find a four-byte integer type for crc32_little() and crc32_big(). */ -#ifndef NOBYFOUR -# ifdef STDC /* need ANSI C limits.h to determine sizes */ -# include -# define BYFOUR -# if (UINT_MAX == 0xffffffffUL) - typedef unsigned int u4; -# else -# if (ULONG_MAX == 0xffffffffUL) - typedef unsigned long u4; -# else -# if (USHRT_MAX == 0xffffffffUL) - typedef unsigned short u4; -# else -# undef BYFOUR /* can't find a four-byte integer type! */ -# endif -# endif -# endif -# endif /* STDC */ -#endif /* !NOBYFOUR */ - -/* Definitions for doing the crc four data bytes at a time. */ -#ifdef BYFOUR -# define REV(w) (((w)>>24)+(((w)>>8)&0xff00)+ \ - (((w)&0xff00)<<8)+(((w)&0xff)<<24)) - local unsigned long crc32_little OF((unsigned long, - const unsigned char FAR *, unsigned)); - local unsigned long crc32_big OF((unsigned long, - const unsigned char FAR *, unsigned)); -# define TBLS 8 -#else -# define TBLS 1 -#endif /* BYFOUR */ - -/* Local functions for crc concatenation */ -local unsigned long gf2_matrix_times OF((unsigned long *mat, - unsigned long vec)); -local void gf2_matrix_square OF((unsigned long *square, unsigned long *mat)); - -#ifdef DYNAMIC_CRC_TABLE - -local volatile int crc_table_empty = 1; -local unsigned long FAR crc_table[TBLS][256]; -local void make_crc_table OF((void)); -#ifdef MAKECRCH - local void write_table OF((FILE *, const unsigned long FAR *)); -#endif /* MAKECRCH */ -/* - Generate tables for a byte-wise 32-bit CRC calculation on the polynomial: - x^32+x^26+x^23+x^22+x^16+x^12+x^11+x^10+x^8+x^7+x^5+x^4+x^2+x+1. - - Polynomials over GF(2) are represented in binary, one bit per coefficient, - with the lowest powers in the most significant bit. Then adding polynomials - is just exclusive-or, and multiplying a polynomial by x is a right shift by - one. If we call the above polynomial p, and represent a byte as the - polynomial q, also with the lowest power in the most significant bit (so the - byte 0xb1 is the polynomial x^7+x^3+x+1), then the CRC is (q*x^32) mod p, - where a mod b means the remainder after dividing a by b. - - This calculation is done using the shift-register method of multiplying and - taking the remainder. The register is initialized to zero, and for each - incoming bit, x^32 is added mod p to the register if the bit is a one (where - x^32 mod p is p+x^32 = x^26+...+1), and the register is multiplied mod p by - x (which is shifting right by one and adding x^32 mod p if the bit shifted - out is a one). We start with the highest power (least significant bit) of - q and repeat for all eight bits of q. - - The first table is simply the CRC of all possible eight bit values. This is - all the information needed to generate CRCs on data a byte at a time for all - combinations of CRC register values and incoming bytes. The remaining tables - allow for word-at-a-time CRC calculation for both big-endian and little- - endian machines, where a word is four bytes. -*/ -local void make_crc_table() -{ - unsigned long c; - int n, k; - unsigned long poly; /* polynomial exclusive-or pattern */ - /* terms of polynomial defining this crc (except x^32): */ - static volatile int first = 1; /* flag to limit concurrent making */ - static const unsigned char p[] = {0,1,2,4,5,7,8,10,11,12,16,22,23,26}; - - /* See if another task is already doing this (not thread-safe, but better - than nothing -- significantly reduces duration of vulnerability in - case the advice about DYNAMIC_CRC_TABLE is ignored) */ - if (first) { - first = 0; - - /* make exclusive-or pattern from polynomial (0xedb88320UL) */ - poly = 0UL; - for (n = 0; n < sizeof(p)/sizeof(unsigned char); n++) - poly |= 1UL << (31 - p[n]); - - /* generate a crc for every 8-bit value */ - for (n = 0; n < 256; n++) { - c = (unsigned long)n; - for (k = 0; k < 8; k++) - c = c & 1 ? poly ^ (c >> 1) : c >> 1; - crc_table[0][n] = c; - } - -#ifdef BYFOUR - /* generate crc for each value followed by one, two, and three zeros, - and then the byte reversal of those as well as the first table */ - for (n = 0; n < 256; n++) { - c = crc_table[0][n]; - crc_table[4][n] = REV(c); - for (k = 1; k < 4; k++) { - c = crc_table[0][c & 0xff] ^ (c >> 8); - crc_table[k][n] = c; - crc_table[k + 4][n] = REV(c); - } - } -#endif /* BYFOUR */ - - crc_table_empty = 0; - } - else { /* not first */ - /* wait for the other guy to finish (not efficient, but rare) */ - while (crc_table_empty) - ; - } - -#ifdef MAKECRCH - /* write out CRC tables to crc32.h */ - { - FILE *out; - - out = fopen("crc32.h", "w"); - if (out == NULL) return; - fprintf(out, "/* crc32.h -- tables for rapid CRC calculation\n"); - fprintf(out, " * Generated automatically by crc32.c\n */\n\n"); - fprintf(out, "local const unsigned long FAR "); - fprintf(out, "crc_table[TBLS][256] =\n{\n {\n"); - write_table(out, crc_table[0]); -# ifdef BYFOUR - fprintf(out, "#ifdef BYFOUR\n"); - for (k = 1; k < 8; k++) { - fprintf(out, " },\n {\n"); - write_table(out, crc_table[k]); - } - fprintf(out, "#endif\n"); -# endif /* BYFOUR */ - fprintf(out, " }\n};\n"); - fclose(out); - } -#endif /* MAKECRCH */ -} - -#ifdef MAKECRCH -local void write_table(out, table) - FILE *out; - const unsigned long FAR *table; -{ - int n; - - for (n = 0; n < 256; n++) - fprintf(out, "%s0x%08lxUL%s", n % 5 ? "" : " ", table[n], - n == 255 ? "\n" : (n % 5 == 4 ? ",\n" : ", ")); -} -#endif /* MAKECRCH */ - -#else /* !DYNAMIC_CRC_TABLE */ -/* ======================================================================== - * Tables of CRC-32s of all single-byte values, made by make_crc_table(). - */ -#include "crc32.h" -#endif /* DYNAMIC_CRC_TABLE */ - -/* ========================================================================= - * This function can be used by asm versions of crc32() - */ -const unsigned long FAR * ZEXPORT get_crc_table() -{ -#ifdef DYNAMIC_CRC_TABLE - if (crc_table_empty) - make_crc_table(); -#endif /* DYNAMIC_CRC_TABLE */ - return (const unsigned long FAR *)crc_table; -} - -/* ========================================================================= */ -#define DO1 crc = crc_table[0][((int)crc ^ (*buf++)) & 0xff] ^ (crc >> 8) -#define DO8 DO1; DO1; DO1; DO1; DO1; DO1; DO1; DO1 - -/* ========================================================================= */ -unsigned long ZEXPORT crc32(crc, buf, len) - unsigned long crc; - const unsigned char FAR *buf; - unsigned len; -{ - if (buf == Z_NULL) return 0UL; - -#ifdef DYNAMIC_CRC_TABLE - if (crc_table_empty) - make_crc_table(); -#endif /* DYNAMIC_CRC_TABLE */ - -#ifdef BYFOUR - if (sizeof(void *) == sizeof(ptrdiff_t)) { - u4 endian; - - endian = 1; - if (*((unsigned char *)(&endian))) - return crc32_little(crc, buf, len); - else - return crc32_big(crc, buf, len); - } -#endif /* BYFOUR */ - crc = crc ^ 0xffffffffUL; - while (len >= 8) { - DO8; - len -= 8; - } - if (len) do { - DO1; - } while (--len); - return crc ^ 0xffffffffUL; -} - -#ifdef BYFOUR - -/* ========================================================================= */ -#define DOLIT4 c ^= *buf4++; \ - c = crc_table[3][c & 0xff] ^ crc_table[2][(c >> 8) & 0xff] ^ \ - crc_table[1][(c >> 16) & 0xff] ^ crc_table[0][c >> 24] -#define DOLIT32 DOLIT4; DOLIT4; DOLIT4; DOLIT4; DOLIT4; DOLIT4; DOLIT4; DOLIT4 - -/* ========================================================================= */ -local unsigned long crc32_little(crc, buf, len) - unsigned long crc; - const unsigned char FAR *buf; - unsigned len; -{ - register u4 c; - register const u4 FAR *buf4; - - c = (u4)crc; - c = ~c; - while (len && ((ptrdiff_t)buf & 3)) { - c = crc_table[0][(c ^ *buf++) & 0xff] ^ (c >> 8); - len--; - } - - buf4 = (const u4 FAR *)(const void FAR *)buf; - while (len >= 32) { - DOLIT32; - len -= 32; - } - while (len >= 4) { - DOLIT4; - len -= 4; - } - buf = (const unsigned char FAR *)buf4; - - if (len) do { - c = crc_table[0][(c ^ *buf++) & 0xff] ^ (c >> 8); - } while (--len); - c = ~c; - return (unsigned long)c; -} - -/* ========================================================================= */ -#define DOBIG4 c ^= *++buf4; \ - c = crc_table[4][c & 0xff] ^ crc_table[5][(c >> 8) & 0xff] ^ \ - crc_table[6][(c >> 16) & 0xff] ^ crc_table[7][c >> 24] -#define DOBIG32 DOBIG4; DOBIG4; DOBIG4; DOBIG4; DOBIG4; DOBIG4; DOBIG4; DOBIG4 - -/* ========================================================================= */ -local unsigned long crc32_big(crc, buf, len) - unsigned long crc; - const unsigned char FAR *buf; - unsigned len; -{ - register u4 c; - register const u4 FAR *buf4; - - c = REV((u4)crc); - c = ~c; - while (len && ((ptrdiff_t)buf & 3)) { - c = crc_table[4][(c >> 24) ^ *buf++] ^ (c << 8); - len--; - } - - buf4 = (const u4 FAR *)(const void FAR *)buf; - buf4--; - while (len >= 32) { - DOBIG32; - len -= 32; - } - while (len >= 4) { - DOBIG4; - len -= 4; - } - buf4++; - buf = (const unsigned char FAR *)buf4; - - if (len) do { - c = crc_table[4][(c >> 24) ^ *buf++] ^ (c << 8); - } while (--len); - c = ~c; - return (unsigned long)(REV(c)); -} - -#endif /* BYFOUR */ - -#define GF2_DIM 32 /* dimension of GF(2) vectors (length of CRC) */ - -/* ========================================================================= */ -local unsigned long gf2_matrix_times(mat, vec) - unsigned long *mat; - unsigned long vec; -{ - unsigned long sum; - - sum = 0; - while (vec) { - if (vec & 1) - sum ^= *mat; - vec >>= 1; - mat++; - } - return sum; -} - -/* ========================================================================= */ -local void gf2_matrix_square(square, mat) - unsigned long *square; - unsigned long *mat; -{ - int n; - - for (n = 0; n < GF2_DIM; n++) - square[n] = gf2_matrix_times(mat, mat[n]); -} - -/* ========================================================================= */ -uLong ZEXPORT crc32_combine(crc1, crc2, len2) - uLong crc1; - uLong crc2; - z_off_t len2; -{ - int n; - unsigned long row; - unsigned long even[GF2_DIM]; /* even-power-of-two zeros operator */ - unsigned long odd[GF2_DIM]; /* odd-power-of-two zeros operator */ - - /* degenerate case */ - if (len2 == 0) - return crc1; - - /* put operator for one zero bit in odd */ - odd[0] = 0xedb88320L; /* CRC-32 polynomial */ - row = 1; - for (n = 1; n < GF2_DIM; n++) { - odd[n] = row; - row <<= 1; - } - - /* put operator for two zero bits in even */ - gf2_matrix_square(even, odd); - - /* put operator for four zero bits in odd */ - gf2_matrix_square(odd, even); - - /* apply len2 zeros to crc1 (first square will put the operator for one - zero byte, eight zero bits, in even) */ - do { - /* apply zeros operator for this bit of len2 */ - gf2_matrix_square(even, odd); - if (len2 & 1) - crc1 = gf2_matrix_times(even, crc1); - len2 >>= 1; - - /* if no more bits set, then done */ - if (len2 == 0) - break; - - /* another iteration of the loop with odd and even swapped */ - gf2_matrix_square(odd, even); - if (len2 & 1) - crc1 = gf2_matrix_times(odd, crc1); - len2 >>= 1; - - /* if no more bits set, then done */ - } while (len2 != 0); - - /* return combined crc */ - crc1 ^= crc2; - return crc1; -} diff --git a/src/3rdParty/CxImage/zlib/crc32.h b/src/3rdParty/CxImage/zlib/crc32.h deleted file mode 100644 index 5de49bc978..0000000000 --- a/src/3rdParty/CxImage/zlib/crc32.h +++ /dev/null @@ -1,441 +0,0 @@ -/* crc32.h -- tables for rapid CRC calculation - * Generated automatically by crc32.c - */ - -local const unsigned long FAR crc_table[TBLS][256] = -{ - { - 0x00000000UL, 0x77073096UL, 0xee0e612cUL, 0x990951baUL, 0x076dc419UL, - 0x706af48fUL, 0xe963a535UL, 0x9e6495a3UL, 0x0edb8832UL, 0x79dcb8a4UL, - 0xe0d5e91eUL, 0x97d2d988UL, 0x09b64c2bUL, 0x7eb17cbdUL, 0xe7b82d07UL, - 0x90bf1d91UL, 0x1db71064UL, 0x6ab020f2UL, 0xf3b97148UL, 0x84be41deUL, - 0x1adad47dUL, 0x6ddde4ebUL, 0xf4d4b551UL, 0x83d385c7UL, 0x136c9856UL, - 0x646ba8c0UL, 0xfd62f97aUL, 0x8a65c9ecUL, 0x14015c4fUL, 0x63066cd9UL, - 0xfa0f3d63UL, 0x8d080df5UL, 0x3b6e20c8UL, 0x4c69105eUL, 0xd56041e4UL, - 0xa2677172UL, 0x3c03e4d1UL, 0x4b04d447UL, 0xd20d85fdUL, 0xa50ab56bUL, - 0x35b5a8faUL, 0x42b2986cUL, 0xdbbbc9d6UL, 0xacbcf940UL, 0x32d86ce3UL, - 0x45df5c75UL, 0xdcd60dcfUL, 0xabd13d59UL, 0x26d930acUL, 0x51de003aUL, - 0xc8d75180UL, 0xbfd06116UL, 0x21b4f4b5UL, 0x56b3c423UL, 0xcfba9599UL, - 0xb8bda50fUL, 0x2802b89eUL, 0x5f058808UL, 0xc60cd9b2UL, 0xb10be924UL, - 0x2f6f7c87UL, 0x58684c11UL, 0xc1611dabUL, 0xb6662d3dUL, 0x76dc4190UL, - 0x01db7106UL, 0x98d220bcUL, 0xefd5102aUL, 0x71b18589UL, 0x06b6b51fUL, - 0x9fbfe4a5UL, 0xe8b8d433UL, 0x7807c9a2UL, 0x0f00f934UL, 0x9609a88eUL, - 0xe10e9818UL, 0x7f6a0dbbUL, 0x086d3d2dUL, 0x91646c97UL, 0xe6635c01UL, - 0x6b6b51f4UL, 0x1c6c6162UL, 0x856530d8UL, 0xf262004eUL, 0x6c0695edUL, - 0x1b01a57bUL, 0x8208f4c1UL, 0xf50fc457UL, 0x65b0d9c6UL, 0x12b7e950UL, - 0x8bbeb8eaUL, 0xfcb9887cUL, 0x62dd1ddfUL, 0x15da2d49UL, 0x8cd37cf3UL, - 0xfbd44c65UL, 0x4db26158UL, 0x3ab551ceUL, 0xa3bc0074UL, 0xd4bb30e2UL, - 0x4adfa541UL, 0x3dd895d7UL, 0xa4d1c46dUL, 0xd3d6f4fbUL, 0x4369e96aUL, - 0x346ed9fcUL, 0xad678846UL, 0xda60b8d0UL, 0x44042d73UL, 0x33031de5UL, - 0xaa0a4c5fUL, 0xdd0d7cc9UL, 0x5005713cUL, 0x270241aaUL, 0xbe0b1010UL, - 0xc90c2086UL, 0x5768b525UL, 0x206f85b3UL, 0xb966d409UL, 0xce61e49fUL, - 0x5edef90eUL, 0x29d9c998UL, 0xb0d09822UL, 0xc7d7a8b4UL, 0x59b33d17UL, - 0x2eb40d81UL, 0xb7bd5c3bUL, 0xc0ba6cadUL, 0xedb88320UL, 0x9abfb3b6UL, - 0x03b6e20cUL, 0x74b1d29aUL, 0xead54739UL, 0x9dd277afUL, 0x04db2615UL, - 0x73dc1683UL, 0xe3630b12UL, 0x94643b84UL, 0x0d6d6a3eUL, 0x7a6a5aa8UL, - 0xe40ecf0bUL, 0x9309ff9dUL, 0x0a00ae27UL, 0x7d079eb1UL, 0xf00f9344UL, - 0x8708a3d2UL, 0x1e01f268UL, 0x6906c2feUL, 0xf762575dUL, 0x806567cbUL, - 0x196c3671UL, 0x6e6b06e7UL, 0xfed41b76UL, 0x89d32be0UL, 0x10da7a5aUL, - 0x67dd4accUL, 0xf9b9df6fUL, 0x8ebeeff9UL, 0x17b7be43UL, 0x60b08ed5UL, - 0xd6d6a3e8UL, 0xa1d1937eUL, 0x38d8c2c4UL, 0x4fdff252UL, 0xd1bb67f1UL, - 0xa6bc5767UL, 0x3fb506ddUL, 0x48b2364bUL, 0xd80d2bdaUL, 0xaf0a1b4cUL, - 0x36034af6UL, 0x41047a60UL, 0xdf60efc3UL, 0xa867df55UL, 0x316e8eefUL, - 0x4669be79UL, 0xcb61b38cUL, 0xbc66831aUL, 0x256fd2a0UL, 0x5268e236UL, - 0xcc0c7795UL, 0xbb0b4703UL, 0x220216b9UL, 0x5505262fUL, 0xc5ba3bbeUL, - 0xb2bd0b28UL, 0x2bb45a92UL, 0x5cb36a04UL, 0xc2d7ffa7UL, 0xb5d0cf31UL, - 0x2cd99e8bUL, 0x5bdeae1dUL, 0x9b64c2b0UL, 0xec63f226UL, 0x756aa39cUL, - 0x026d930aUL, 0x9c0906a9UL, 0xeb0e363fUL, 0x72076785UL, 0x05005713UL, - 0x95bf4a82UL, 0xe2b87a14UL, 0x7bb12baeUL, 0x0cb61b38UL, 0x92d28e9bUL, - 0xe5d5be0dUL, 0x7cdcefb7UL, 0x0bdbdf21UL, 0x86d3d2d4UL, 0xf1d4e242UL, - 0x68ddb3f8UL, 0x1fda836eUL, 0x81be16cdUL, 0xf6b9265bUL, 0x6fb077e1UL, - 0x18b74777UL, 0x88085ae6UL, 0xff0f6a70UL, 0x66063bcaUL, 0x11010b5cUL, - 0x8f659effUL, 0xf862ae69UL, 0x616bffd3UL, 0x166ccf45UL, 0xa00ae278UL, - 0xd70dd2eeUL, 0x4e048354UL, 0x3903b3c2UL, 0xa7672661UL, 0xd06016f7UL, - 0x4969474dUL, 0x3e6e77dbUL, 0xaed16a4aUL, 0xd9d65adcUL, 0x40df0b66UL, - 0x37d83bf0UL, 0xa9bcae53UL, 0xdebb9ec5UL, 0x47b2cf7fUL, 0x30b5ffe9UL, - 0xbdbdf21cUL, 0xcabac28aUL, 0x53b39330UL, 0x24b4a3a6UL, 0xbad03605UL, - 0xcdd70693UL, 0x54de5729UL, 0x23d967bfUL, 0xb3667a2eUL, 0xc4614ab8UL, - 0x5d681b02UL, 0x2a6f2b94UL, 0xb40bbe37UL, 0xc30c8ea1UL, 0x5a05df1bUL, - 0x2d02ef8dUL -#ifdef BYFOUR - }, - { - 0x00000000UL, 0x191b3141UL, 0x32366282UL, 0x2b2d53c3UL, 0x646cc504UL, - 0x7d77f445UL, 0x565aa786UL, 0x4f4196c7UL, 0xc8d98a08UL, 0xd1c2bb49UL, - 0xfaefe88aUL, 0xe3f4d9cbUL, 0xacb54f0cUL, 0xb5ae7e4dUL, 0x9e832d8eUL, - 0x87981ccfUL, 0x4ac21251UL, 0x53d92310UL, 0x78f470d3UL, 0x61ef4192UL, - 0x2eaed755UL, 0x37b5e614UL, 0x1c98b5d7UL, 0x05838496UL, 0x821b9859UL, - 0x9b00a918UL, 0xb02dfadbUL, 0xa936cb9aUL, 0xe6775d5dUL, 0xff6c6c1cUL, - 0xd4413fdfUL, 0xcd5a0e9eUL, 0x958424a2UL, 0x8c9f15e3UL, 0xa7b24620UL, - 0xbea97761UL, 0xf1e8e1a6UL, 0xe8f3d0e7UL, 0xc3de8324UL, 0xdac5b265UL, - 0x5d5daeaaUL, 0x44469febUL, 0x6f6bcc28UL, 0x7670fd69UL, 0x39316baeUL, - 0x202a5aefUL, 0x0b07092cUL, 0x121c386dUL, 0xdf4636f3UL, 0xc65d07b2UL, - 0xed705471UL, 0xf46b6530UL, 0xbb2af3f7UL, 0xa231c2b6UL, 0x891c9175UL, - 0x9007a034UL, 0x179fbcfbUL, 0x0e848dbaUL, 0x25a9de79UL, 0x3cb2ef38UL, - 0x73f379ffUL, 0x6ae848beUL, 0x41c51b7dUL, 0x58de2a3cUL, 0xf0794f05UL, - 0xe9627e44UL, 0xc24f2d87UL, 0xdb541cc6UL, 0x94158a01UL, 0x8d0ebb40UL, - 0xa623e883UL, 0xbf38d9c2UL, 0x38a0c50dUL, 0x21bbf44cUL, 0x0a96a78fUL, - 0x138d96ceUL, 0x5ccc0009UL, 0x45d73148UL, 0x6efa628bUL, 0x77e153caUL, - 0xbabb5d54UL, 0xa3a06c15UL, 0x888d3fd6UL, 0x91960e97UL, 0xded79850UL, - 0xc7cca911UL, 0xece1fad2UL, 0xf5facb93UL, 0x7262d75cUL, 0x6b79e61dUL, - 0x4054b5deUL, 0x594f849fUL, 0x160e1258UL, 0x0f152319UL, 0x243870daUL, - 0x3d23419bUL, 0x65fd6ba7UL, 0x7ce65ae6UL, 0x57cb0925UL, 0x4ed03864UL, - 0x0191aea3UL, 0x188a9fe2UL, 0x33a7cc21UL, 0x2abcfd60UL, 0xad24e1afUL, - 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0x720f8a79UL, 0xcb375de4UL, 0xae50e15cUL, 0x40ff544eUL, 0x2598e8f6UL, - 0x73888baeUL, 0x16ef3716UL, 0xf8408204UL, 0x9d273ebcUL, 0x241fe921UL, - 0x41785599UL, 0xafd7e08bUL, 0xcab05c33UL, 0x3bb659edUL, 0x5ed1e555UL, - 0xb07e5047UL, 0xd519ecffUL, 0x6c213b62UL, 0x094687daUL, 0xe7e932c8UL, - 0x828e8e70UL, 0xd49eed28UL, 0xb1f95190UL, 0x5f56e482UL, 0x3a31583aUL, - 0x83098fa7UL, 0xe66e331fUL, 0x08c1860dUL, 0x6da63ab5UL, 0xa4e140bdUL, - 0xc186fc05UL, 0x2f294917UL, 0x4a4ef5afUL, 0xf3762232UL, 0x96119e8aUL, - 0x78be2b98UL, 0x1dd99720UL, 0x4bc9f478UL, 0x2eae48c0UL, 0xc001fdd2UL, - 0xa566416aUL, 0x1c5e96f7UL, 0x79392a4fUL, 0x97969f5dUL, 0xf2f123e5UL, - 0x05196b4dUL, 0x607ed7f5UL, 0x8ed162e7UL, 0xebb6de5fUL, 0x528e09c2UL, - 0x37e9b57aUL, 0xd9460068UL, 0xbc21bcd0UL, 0xea31df88UL, 0x8f566330UL, - 0x61f9d622UL, 0x049e6a9aUL, 0xbda6bd07UL, 0xd8c101bfUL, 0x366eb4adUL, - 0x53090815UL, 0x9a4e721dUL, 0xff29cea5UL, 0x11867bb7UL, 0x74e1c70fUL, - 0xcdd91092UL, 0xa8beac2aUL, 0x46111938UL, 0x2376a580UL, 0x7566c6d8UL, - 0x10017a60UL, 0xfeaecf72UL, 0x9bc973caUL, 0x22f1a457UL, 0x479618efUL, - 0xa939adfdUL, 0xcc5e1145UL, 0x06ee4d76UL, 0x6389f1ceUL, 0x8d2644dcUL, - 0xe841f864UL, 0x51792ff9UL, 0x341e9341UL, 0xdab12653UL, 0xbfd69aebUL, - 0xe9c6f9b3UL, 0x8ca1450bUL, 0x620ef019UL, 0x07694ca1UL, 0xbe519b3cUL, - 0xdb362784UL, 0x35999296UL, 0x50fe2e2eUL, 0x99b95426UL, 0xfcdee89eUL, - 0x12715d8cUL, 0x7716e134UL, 0xce2e36a9UL, 0xab498a11UL, 0x45e63f03UL, - 0x208183bbUL, 0x7691e0e3UL, 0x13f65c5bUL, 0xfd59e949UL, 0x983e55f1UL, - 0x2106826cUL, 0x44613ed4UL, 0xaace8bc6UL, 0xcfa9377eUL, 0x38417fd6UL, - 0x5d26c36eUL, 0xb389767cUL, 0xd6eecac4UL, 0x6fd61d59UL, 0x0ab1a1e1UL, - 0xe41e14f3UL, 0x8179a84bUL, 0xd769cb13UL, 0xb20e77abUL, 0x5ca1c2b9UL, - 0x39c67e01UL, 0x80fea99cUL, 0xe5991524UL, 0x0b36a036UL, 0x6e511c8eUL, - 0xa7166686UL, 0xc271da3eUL, 0x2cde6f2cUL, 0x49b9d394UL, 0xf0810409UL, - 0x95e6b8b1UL, 0x7b490da3UL, 0x1e2eb11bUL, 0x483ed243UL, 0x2d596efbUL, - 0xc3f6dbe9UL, 0xa6916751UL, 0x1fa9b0ccUL, 0x7ace0c74UL, 0x9461b966UL, - 0xf10605deUL -#endif - } -}; diff --git a/src/3rdParty/CxImage/zlib/deflate.c b/src/3rdParty/CxImage/zlib/deflate.c deleted file mode 100644 index 529f716b7a..0000000000 --- a/src/3rdParty/CxImage/zlib/deflate.c +++ /dev/null @@ -1,1736 +0,0 @@ -/* deflate.c -- compress data using the deflation algorithm - * Copyright (C) 1995-2005 Jean-loup Gailly. - * For conditions of distribution and use, see copyright notice in zlib.h - */ - -/* - * ALGORITHM - * - * The "deflation" process depends on being able to identify portions - * of the input text which are identical to earlier input (within a - * sliding window trailing behind the input currently being processed). - * - * The most straightforward technique turns out to be the fastest for - * most input files: try all possible matches and select the longest. - * The key feature of this algorithm is that insertions into the string - * dictionary are very simple and thus fast, and deletions are avoided - * completely. Insertions are performed at each input character, whereas - * string matches are performed only when the previous match ends. So it - * is preferable to spend more time in matches to allow very fast string - * insertions and avoid deletions. The matching algorithm for small - * strings is inspired from that of Rabin & Karp. A brute force approach - * is used to find longer strings when a small match has been found. - * A similar algorithm is used in comic (by Jan-Mark Wams) and freeze - * (by Leonid Broukhis). - * A previous version of this file used a more sophisticated algorithm - * (by Fiala and Greene) which is guaranteed to run in linear amortized - * time, but has a larger average cost, uses more memory and is patented. - * However the F&G algorithm may be faster for some highly redundant - * files if the parameter max_chain_length (described below) is too large. - * - * ACKNOWLEDGEMENTS - * - * The idea of lazy evaluation of matches is due to Jan-Mark Wams, and - * I found it in 'freeze' written by Leonid Broukhis. - * Thanks to many people for bug reports and testing. - * - * REFERENCES - * - * Deutsch, L.P.,"DEFLATE Compressed Data Format Specification". - * Available in http://www.ietf.org/rfc/rfc1951.txt - * - * A description of the Rabin and Karp algorithm is given in the book - * "Algorithms" by R. Sedgewick, Addison-Wesley, p252. - * - * Fiala,E.R., and Greene,D.H. - * Data Compression with Finite Windows, Comm.ACM, 32,4 (1989) 490-595 - * - */ - -/* @(#) $Id$ */ - -#include "deflate.h" - -const char deflate_copyright[] = - " deflate 1.2.3 Copyright 1995-2005 Jean-loup Gailly "; -/* - If you use the zlib library in a product, an acknowledgment is welcome - in the documentation of your product. If for some reason you cannot - include such an acknowledgment, I would appreciate that you keep this - copyright string in the executable of your product. - */ - -/* =========================================================================== - * Function prototypes. - */ -typedef enum { - need_more, /* block not completed, need more input or more output */ - block_done, /* block flush performed */ - finish_started, /* finish started, need only more output at next deflate */ - finish_done /* finish done, accept no more input or output */ -} block_state; - -typedef block_state (*compress_func) OF((deflate_state *s, int flush)); -/* Compression function. Returns the block state after the call. */ - -local void fill_window OF((deflate_state *s)); -local block_state deflate_stored OF((deflate_state *s, int flush)); -local block_state deflate_fast OF((deflate_state *s, int flush)); -#ifndef FASTEST -local block_state deflate_slow OF((deflate_state *s, int flush)); -#endif -local void lm_init OF((deflate_state *s)); -local void putShortMSB OF((deflate_state *s, uInt b)); -local void flush_pending OF((z_streamp strm)); -local int read_buf OF((z_streamp strm, Bytef *buf, unsigned size)); -#ifndef FASTEST -#ifdef ASMV - void match_init OF((void)); /* asm code initialization */ - uInt longest_match OF((deflate_state *s, IPos cur_match)); -#else -local uInt longest_match OF((deflate_state *s, IPos cur_match)); -#endif -#endif -local uInt longest_match_fast OF((deflate_state *s, IPos cur_match)); - -#ifdef DEBUG -local void check_match OF((deflate_state *s, IPos start, IPos match, - int length)); -#endif - -/* =========================================================================== - * Local data - */ - -#define NIL 0 -/* Tail of hash chains */ - -#ifndef TOO_FAR -# define TOO_FAR 4096 -#endif -/* Matches of length 3 are discarded if their distance exceeds TOO_FAR */ - -#define MIN_LOOKAHEAD (MAX_MATCH+MIN_MATCH+1) -/* Minimum amount of lookahead, except at the end of the input file. - * See deflate.c for comments about the MIN_MATCH+1. - */ - -/* Values for max_lazy_match, good_match and max_chain_length, depending on - * the desired pack level (0..9). The values given below have been tuned to - * exclude worst case performance for pathological files. Better values may be - * found for specific files. - */ -typedef struct config_s { - ush good_length; /* reduce lazy search above this match length */ - ush max_lazy; /* do not perform lazy search above this match length */ - ush nice_length; /* quit search above this match length */ - ush max_chain; - compress_func func; -} config; - -#ifdef FASTEST -local const config configuration_table[2] = { -/* good lazy nice chain */ -/* 0 */ {0, 0, 0, 0, deflate_stored}, /* store only */ -/* 1 */ {4, 4, 8, 4, deflate_fast}}; /* max speed, no lazy matches */ -#else -local const config configuration_table[10] = { -/* good lazy nice chain */ -/* 0 */ {0, 0, 0, 0, deflate_stored}, /* store only */ -/* 1 */ {4, 4, 8, 4, deflate_fast}, /* max speed, no lazy matches */ -/* 2 */ {4, 5, 16, 8, deflate_fast}, -/* 3 */ {4, 6, 32, 32, deflate_fast}, - -/* 4 */ {4, 4, 16, 16, deflate_slow}, /* lazy matches */ -/* 5 */ {8, 16, 32, 32, deflate_slow}, -/* 6 */ {8, 16, 128, 128, deflate_slow}, -/* 7 */ {8, 32, 128, 256, deflate_slow}, -/* 8 */ {32, 128, 258, 1024, deflate_slow}, -/* 9 */ {32, 258, 258, 4096, deflate_slow}}; /* max compression */ -#endif - -/* Note: the deflate() code requires max_lazy >= MIN_MATCH and max_chain >= 4 - * For deflate_fast() (levels <= 3) good is ignored and lazy has a different - * meaning. - */ - -#define EQUAL 0 -/* result of memcmp for equal strings */ - -#ifndef NO_DUMMY_DECL -struct static_tree_desc_s {int dummy;}; /* for buggy compilers */ -#endif - -/* =========================================================================== - * Update a hash value with the given input byte - * IN assertion: all calls to to UPDATE_HASH are made with consecutive - * input characters, so that a running hash key can be computed from the - * previous key instead of complete recalculation each time. - */ -#define UPDATE_HASH(s,h,c) (h = (((h)<hash_shift) ^ (c)) & s->hash_mask) - - -/* =========================================================================== - * Insert string str in the dictionary and set match_head to the previous head - * of the hash chain (the most recent string with same hash key). Return - * the previous length of the hash chain. - * If this file is compiled with -DFASTEST, the compression level is forced - * to 1, and no hash chains are maintained. - * IN assertion: all calls to to INSERT_STRING are made with consecutive - * input characters and the first MIN_MATCH bytes of str are valid - * (except for the last MIN_MATCH-1 bytes of the input file). - */ -#ifdef FASTEST -#define INSERT_STRING(s, str, match_head) \ - (UPDATE_HASH(s, s->ins_h, s->window[(str) + (MIN_MATCH-1)]), \ - match_head = s->head[s->ins_h], \ - s->head[s->ins_h] = (Pos)(str)) -#else -#define INSERT_STRING(s, str, match_head) \ - (UPDATE_HASH(s, s->ins_h, s->window[(str) + (MIN_MATCH-1)]), \ - match_head = s->prev[(str) & s->w_mask] = s->head[s->ins_h], \ - s->head[s->ins_h] = (Pos)(str)) -#endif - -/* =========================================================================== - * Initialize the hash table (avoiding 64K overflow for 16 bit systems). - * prev[] will be initialized on the fly. - */ -#define CLEAR_HASH(s) \ - s->head[s->hash_size-1] = NIL; \ - zmemzero((Bytef *)s->head, (unsigned)(s->hash_size-1)*sizeof(*s->head)); - -/* ========================================================================= */ -int ZEXPORT deflateInit_(strm, level, version, stream_size) - z_streamp strm; - int level; - const char *version; - int stream_size; -{ - return deflateInit2_(strm, level, Z_DEFLATED, MAX_WBITS, DEF_MEM_LEVEL, - Z_DEFAULT_STRATEGY, version, stream_size); - /* To do: ignore strm->next_in if we use it as window */ -} - -/* ========================================================================= */ -int ZEXPORT deflateInit2_(strm, level, method, windowBits, memLevel, strategy, - version, stream_size) - z_streamp strm; - int level; - int method; - int windowBits; - int memLevel; - int strategy; - const char *version; - int stream_size; -{ - deflate_state *s; - int wrap = 1; - static const char my_version[] = ZLIB_VERSION; - - ushf *overlay; - /* We overlay pending_buf and d_buf+l_buf. This works since the average - * output size for (length,distance) codes is <= 24 bits. - */ - - if (version == Z_NULL || version[0] != my_version[0] || - stream_size != sizeof(z_stream)) { - return Z_VERSION_ERROR; - } - if (strm == Z_NULL) return Z_STREAM_ERROR; - - strm->msg = Z_NULL; - if (strm->zalloc == (alloc_func)0) { - strm->zalloc = zcalloc; - strm->opaque = (voidpf)0; - } - if (strm->zfree == (free_func)0) strm->zfree = zcfree; - -#ifdef FASTEST - if (level != 0) level = 1; -#else - if (level == Z_DEFAULT_COMPRESSION) level = 6; -#endif - - if (windowBits < 0) { /* suppress zlib wrapper */ - wrap = 0; - windowBits = -windowBits; - } -#ifdef GZIP - else if (windowBits > 15) { - wrap = 2; /* write gzip wrapper instead */ - windowBits -= 16; - } -#endif - if (memLevel < 1 || memLevel > MAX_MEM_LEVEL || method != Z_DEFLATED || - windowBits < 8 || windowBits > 15 || level < 0 || level > 9 || - strategy < 0 || strategy > Z_FIXED) { - return Z_STREAM_ERROR; - } - if (windowBits == 8) windowBits = 9; /* until 256-byte window bug fixed */ - s = (deflate_state *) ZALLOC(strm, 1, sizeof(deflate_state)); - if (s == Z_NULL) return Z_MEM_ERROR; - strm->state = (struct internal_state FAR *)s; - s->strm = strm; - - s->wrap = wrap; - s->gzhead = Z_NULL; - s->w_bits = windowBits; - s->w_size = 1 << s->w_bits; - s->w_mask = s->w_size - 1; - - s->hash_bits = memLevel + 7; - s->hash_size = 1 << s->hash_bits; - s->hash_mask = s->hash_size - 1; - s->hash_shift = ((s->hash_bits+MIN_MATCH-1)/MIN_MATCH); - - s->window = (Bytef *) ZALLOC(strm, s->w_size, 2*sizeof(Byte)); - s->prev = (Posf *) ZALLOC(strm, s->w_size, sizeof(Pos)); - s->head = (Posf *) ZALLOC(strm, s->hash_size, sizeof(Pos)); - - s->lit_bufsize = 1 << (memLevel + 6); /* 16K elements by default */ - - overlay = (ushf *) ZALLOC(strm, s->lit_bufsize, sizeof(ush)+2); - s->pending_buf = (uchf *) overlay; - s->pending_buf_size = (ulg)s->lit_bufsize * (sizeof(ush)+2L); - - if (s->window == Z_NULL || s->prev == Z_NULL || s->head == Z_NULL || - s->pending_buf == Z_NULL) { - s->status = FINISH_STATE; - strm->msg = (char*)ERR_MSG(Z_MEM_ERROR); - deflateEnd (strm); - return Z_MEM_ERROR; - } - s->d_buf = overlay + s->lit_bufsize/sizeof(ush); - s->l_buf = s->pending_buf + (1+sizeof(ush))*s->lit_bufsize; - - s->level = level; - s->strategy = strategy; - s->method = (Byte)method; - - return deflateReset(strm); -} - -/* ========================================================================= */ -int ZEXPORT deflateSetDictionary (strm, dictionary, dictLength) - z_streamp strm; - const Bytef *dictionary; - uInt dictLength; -{ - deflate_state *s; - uInt length = dictLength; - uInt n; - IPos hash_head = 0; - - if (strm == Z_NULL || strm->state == Z_NULL || dictionary == Z_NULL || - strm->state->wrap == 2 || - (strm->state->wrap == 1 && strm->state->status != INIT_STATE)) - return Z_STREAM_ERROR; - - s = strm->state; - if (s->wrap) - strm->adler = adler32(strm->adler, dictionary, dictLength); - - if (length < MIN_MATCH) return Z_OK; - if (length > MAX_DIST(s)) { - length = MAX_DIST(s); - dictionary += dictLength - length; /* use the tail of the dictionary */ - } - zmemcpy(s->window, dictionary, length); - s->strstart = length; - s->block_start = (long)length; - - /* Insert all strings in the hash table (except for the last two bytes). - * s->lookahead stays null, so s->ins_h will be recomputed at the next - * call of fill_window. - */ - s->ins_h = s->window[0]; - UPDATE_HASH(s, s->ins_h, s->window[1]); - for (n = 0; n <= length - MIN_MATCH; n++) { - INSERT_STRING(s, n, hash_head); - } - if (hash_head) hash_head = 0; /* to make compiler happy */ - return Z_OK; -} - -/* ========================================================================= */ -int ZEXPORT deflateReset (strm) - z_streamp strm; -{ - deflate_state *s; - - if (strm == Z_NULL || strm->state == Z_NULL || - strm->zalloc == (alloc_func)0 || strm->zfree == (free_func)0) { - return Z_STREAM_ERROR; - } - - strm->total_in = strm->total_out = 0; - strm->msg = Z_NULL; /* use zfree if we ever allocate msg dynamically */ - strm->data_type = Z_UNKNOWN; - - s = (deflate_state *)strm->state; - s->pending = 0; - s->pending_out = s->pending_buf; - - if (s->wrap < 0) { - s->wrap = -s->wrap; /* was made negative by deflate(..., Z_FINISH); */ - } - s->status = s->wrap ? INIT_STATE : BUSY_STATE; - strm->adler = -#ifdef GZIP - s->wrap == 2 ? crc32(0L, Z_NULL, 0) : -#endif - adler32(0L, Z_NULL, 0); - s->last_flush = Z_NO_FLUSH; - - _tr_init(s); - lm_init(s); - - return Z_OK; -} - -/* ========================================================================= */ -int ZEXPORT deflateSetHeader (strm, head) - z_streamp strm; - gz_headerp head; -{ - if (strm == Z_NULL || strm->state == Z_NULL) return Z_STREAM_ERROR; - if (strm->state->wrap != 2) return Z_STREAM_ERROR; - strm->state->gzhead = head; - return Z_OK; -} - -/* ========================================================================= */ -int ZEXPORT deflatePrime (strm, bits, value) - z_streamp strm; - int bits; - int value; -{ - if (strm == Z_NULL || strm->state == Z_NULL) return Z_STREAM_ERROR; - strm->state->bi_valid = bits; - strm->state->bi_buf = (ush)(value & ((1 << bits) - 1)); - return Z_OK; -} - -/* ========================================================================= */ -int ZEXPORT deflateParams(strm, level, strategy) - z_streamp strm; - int level; - int strategy; -{ - deflate_state *s; - compress_func func; - int err = Z_OK; - - if (strm == Z_NULL || strm->state == Z_NULL) return Z_STREAM_ERROR; - s = strm->state; - -#ifdef FASTEST - if (level != 0) level = 1; -#else - if (level == Z_DEFAULT_COMPRESSION) level = 6; -#endif - if (level < 0 || level > 9 || strategy < 0 || strategy > Z_FIXED) { - return Z_STREAM_ERROR; - } - func = configuration_table[s->level].func; - - if (func != configuration_table[level].func && strm->total_in != 0) { - /* Flush the last buffer: */ - err = deflate(strm, Z_PARTIAL_FLUSH); - } - if (s->level != level) { - s->level = level; - s->max_lazy_match = configuration_table[level].max_lazy; - s->good_match = configuration_table[level].good_length; - s->nice_match = configuration_table[level].nice_length; - s->max_chain_length = configuration_table[level].max_chain; - } - s->strategy = strategy; - return err; -} - -/* ========================================================================= */ -int ZEXPORT deflateTune(strm, good_length, max_lazy, nice_length, max_chain) - z_streamp strm; - int good_length; - int max_lazy; - int nice_length; - int max_chain; -{ - deflate_state *s; - - if (strm == Z_NULL || strm->state == Z_NULL) return Z_STREAM_ERROR; - s = strm->state; - s->good_match = good_length; - s->max_lazy_match = max_lazy; - s->nice_match = nice_length; - s->max_chain_length = max_chain; - return Z_OK; -} - -/* ========================================================================= - * For the default windowBits of 15 and memLevel of 8, this function returns - * a close to exact, as well as small, upper bound on the compressed size. - * They are coded as constants here for a reason--if the #define's are - * changed, then this function needs to be changed as well. The return - * value for 15 and 8 only works for those exact settings. - * - * For any setting other than those defaults for windowBits and memLevel, - * the value returned is a conservative worst case for the maximum expansion - * resulting from using fixed blocks instead of stored blocks, which deflate - * can emit on compressed data for some combinations of the parameters. - * - * This function could be more sophisticated to provide closer upper bounds - * for every combination of windowBits and memLevel, as well as wrap. - * But even the conservative upper bound of about 14% expansion does not - * seem onerous for output buffer allocation. - */ -uLong ZEXPORT deflateBound(strm, sourceLen) - z_streamp strm; - uLong sourceLen; -{ - deflate_state *s; - uLong destLen; - - /* conservative upper bound */ - destLen = sourceLen + - ((sourceLen + 7) >> 3) + ((sourceLen + 63) >> 6) + 11; - - /* if can't get parameters, return conservative bound */ - if (strm == Z_NULL || strm->state == Z_NULL) - return destLen; - - /* if not default parameters, return conservative bound */ - s = strm->state; - if (s->w_bits != 15 || s->hash_bits != 8 + 7) - return destLen; - - /* default settings: return tight bound for that case */ - return compressBound(sourceLen); -} - -/* ========================================================================= - * Put a short in the pending buffer. The 16-bit value is put in MSB order. - * IN assertion: the stream state is correct and there is enough room in - * pending_buf. - */ -local void putShortMSB (s, b) - deflate_state *s; - uInt b; -{ - put_byte(s, (Byte)(b >> 8)); - put_byte(s, (Byte)(b & 0xff)); -} - -/* ========================================================================= - * Flush as much pending output as possible. All deflate() output goes - * through this function so some applications may wish to modify it - * to avoid allocating a large strm->next_out buffer and copying into it. - * (See also read_buf()). - */ -local void flush_pending(strm) - z_streamp strm; -{ - unsigned len = strm->state->pending; - - if (len > strm->avail_out) len = strm->avail_out; - if (len == 0) return; - - zmemcpy(strm->next_out, strm->state->pending_out, len); - strm->next_out += len; - strm->state->pending_out += len; - strm->total_out += len; - strm->avail_out -= len; - strm->state->pending -= len; - if (strm->state->pending == 0) { - strm->state->pending_out = strm->state->pending_buf; - } -} - -/* ========================================================================= */ -int ZEXPORT deflate (strm, flush) - z_streamp strm; - int flush; -{ - int old_flush; /* value of flush param for previous deflate call */ - deflate_state *s; - - if (strm == Z_NULL || strm->state == Z_NULL || - flush > Z_FINISH || flush < 0) { - return Z_STREAM_ERROR; - } - s = strm->state; - - if (strm->next_out == Z_NULL || - (strm->next_in == Z_NULL && strm->avail_in != 0) || - (s->status == FINISH_STATE && flush != Z_FINISH)) { - ERR_RETURN(strm, Z_STREAM_ERROR); - } - if (strm->avail_out == 0) ERR_RETURN(strm, Z_BUF_ERROR); - - s->strm = strm; /* just in case */ - old_flush = s->last_flush; - s->last_flush = flush; - - /* Write the header */ - if (s->status == INIT_STATE) { -#ifdef GZIP - if (s->wrap == 2) { - strm->adler = crc32(0L, Z_NULL, 0); - put_byte(s, 31); - put_byte(s, 139); - put_byte(s, 8); - if (s->gzhead == NULL) { - put_byte(s, 0); - put_byte(s, 0); - put_byte(s, 0); - put_byte(s, 0); - put_byte(s, 0); - put_byte(s, s->level == 9 ? 2 : - (s->strategy >= Z_HUFFMAN_ONLY || s->level < 2 ? - 4 : 0)); - put_byte(s, OS_CODE); - s->status = BUSY_STATE; - } - else { - put_byte(s, (s->gzhead->text ? 1 : 0) + - (s->gzhead->hcrc ? 2 : 0) + - (s->gzhead->extra == Z_NULL ? 0 : 4) + - (s->gzhead->name == Z_NULL ? 0 : 8) + - (s->gzhead->comment == Z_NULL ? 0 : 16) - ); - put_byte(s, (Byte)(s->gzhead->time & 0xff)); - put_byte(s, (Byte)((s->gzhead->time >> 8) & 0xff)); - put_byte(s, (Byte)((s->gzhead->time >> 16) & 0xff)); - put_byte(s, (Byte)((s->gzhead->time >> 24) & 0xff)); - put_byte(s, s->level == 9 ? 2 : - (s->strategy >= Z_HUFFMAN_ONLY || s->level < 2 ? - 4 : 0)); - put_byte(s, s->gzhead->os & 0xff); - if (s->gzhead->extra != NULL) { - put_byte(s, s->gzhead->extra_len & 0xff); - put_byte(s, (s->gzhead->extra_len >> 8) & 0xff); - } - if (s->gzhead->hcrc) - strm->adler = crc32(strm->adler, s->pending_buf, - s->pending); - s->gzindex = 0; - s->status = EXTRA_STATE; - } - } - else -#endif - { - uInt header = (Z_DEFLATED + ((s->w_bits-8)<<4)) << 8; - uInt level_flags; - - if (s->strategy >= Z_HUFFMAN_ONLY || s->level < 2) - level_flags = 0; - else if (s->level < 6) - level_flags = 1; - else if (s->level == 6) - level_flags = 2; - else - level_flags = 3; - header |= (level_flags << 6); - if (s->strstart != 0) header |= PRESET_DICT; - header += 31 - (header % 31); - - s->status = BUSY_STATE; - putShortMSB(s, header); - - /* Save the adler32 of the preset dictionary: */ - if (s->strstart != 0) { - putShortMSB(s, (uInt)(strm->adler >> 16)); - putShortMSB(s, (uInt)(strm->adler & 0xffff)); - } - strm->adler = adler32(0L, Z_NULL, 0); - } - } -#ifdef GZIP - if (s->status == EXTRA_STATE) { - if (s->gzhead->extra != NULL) { - uInt beg = s->pending; /* start of bytes to update crc */ - - while (s->gzindex < (s->gzhead->extra_len & 0xffff)) { - if (s->pending == s->pending_buf_size) { - if (s->gzhead->hcrc && s->pending > beg) - strm->adler = crc32(strm->adler, s->pending_buf + beg, - s->pending - beg); - flush_pending(strm); - beg = s->pending; - if (s->pending == s->pending_buf_size) - break; - } - put_byte(s, s->gzhead->extra[s->gzindex]); - s->gzindex++; - } - if (s->gzhead->hcrc && s->pending > beg) - strm->adler = crc32(strm->adler, s->pending_buf + beg, - s->pending - beg); - if (s->gzindex == s->gzhead->extra_len) { - s->gzindex = 0; - s->status = NAME_STATE; - } - } - else - s->status = NAME_STATE; - } - if (s->status == NAME_STATE) { - if (s->gzhead->name != NULL) { - uInt beg = s->pending; /* start of bytes to update crc */ - int val; - - do { - if (s->pending == s->pending_buf_size) { - if (s->gzhead->hcrc && s->pending > beg) - strm->adler = crc32(strm->adler, s->pending_buf + beg, - s->pending - beg); - flush_pending(strm); - beg = s->pending; - if (s->pending == s->pending_buf_size) { - val = 1; - break; - } - } - val = s->gzhead->name[s->gzindex++]; - put_byte(s, val); - } while (val != 0); - if (s->gzhead->hcrc && s->pending > beg) - strm->adler = crc32(strm->adler, s->pending_buf + beg, - s->pending - beg); - if (val == 0) { - s->gzindex = 0; - s->status = COMMENT_STATE; - } - } - else - s->status = COMMENT_STATE; - } - if (s->status == COMMENT_STATE) { - if (s->gzhead->comment != NULL) { - uInt beg = s->pending; /* start of bytes to update crc */ - int val; - - do { - if (s->pending == s->pending_buf_size) { - if (s->gzhead->hcrc && s->pending > beg) - strm->adler = crc32(strm->adler, s->pending_buf + beg, - s->pending - beg); - flush_pending(strm); - beg = s->pending; - if (s->pending == s->pending_buf_size) { - val = 1; - break; - } - } - val = s->gzhead->comment[s->gzindex++]; - put_byte(s, val); - } while (val != 0); - if (s->gzhead->hcrc && s->pending > beg) - strm->adler = crc32(strm->adler, s->pending_buf + beg, - s->pending - beg); - if (val == 0) - s->status = HCRC_STATE; - } - else - s->status = HCRC_STATE; - } - if (s->status == HCRC_STATE) { - if (s->gzhead->hcrc) { - if (s->pending + 2 > s->pending_buf_size) - flush_pending(strm); - if (s->pending + 2 <= s->pending_buf_size) { - put_byte(s, (Byte)(strm->adler & 0xff)); - put_byte(s, (Byte)((strm->adler >> 8) & 0xff)); - strm->adler = crc32(0L, Z_NULL, 0); - s->status = BUSY_STATE; - } - } - else - s->status = BUSY_STATE; - } -#endif - - /* Flush as much pending output as possible */ - if (s->pending != 0) { - flush_pending(strm); - if (strm->avail_out == 0) { - /* Since avail_out is 0, deflate will be called again with - * more output space, but possibly with both pending and - * avail_in equal to zero. There won't be anything to do, - * but this is not an error situation so make sure we - * return OK instead of BUF_ERROR at next call of deflate: - */ - s->last_flush = -1; - return Z_OK; - } - - /* Make sure there is something to do and avoid duplicate consecutive - * flushes. For repeated and useless calls with Z_FINISH, we keep - * returning Z_STREAM_END instead of Z_BUF_ERROR. - */ - } else if (strm->avail_in == 0 && flush <= old_flush && - flush != Z_FINISH) { - ERR_RETURN(strm, Z_BUF_ERROR); - } - - /* User must not provide more input after the first FINISH: */ - if (s->status == FINISH_STATE && strm->avail_in != 0) { - ERR_RETURN(strm, Z_BUF_ERROR); - } - - /* Start a new block or continue the current one. - */ - if (strm->avail_in != 0 || s->lookahead != 0 || - (flush != Z_NO_FLUSH && s->status != FINISH_STATE)) { - block_state bstate; - - bstate = (*(configuration_table[s->level].func))(s, flush); - - if (bstate == finish_started || bstate == finish_done) { - s->status = FINISH_STATE; - } - if (bstate == need_more || bstate == finish_started) { - if (strm->avail_out == 0) { - s->last_flush = -1; /* avoid BUF_ERROR next call, see above */ - } - return Z_OK; - /* If flush != Z_NO_FLUSH && avail_out == 0, the next call - * of deflate should use the same flush parameter to make sure - * that the flush is complete. So we don't have to output an - * empty block here, this will be done at next call. This also - * ensures that for a very small output buffer, we emit at most - * one empty block. - */ - } - if (bstate == block_done) { - if (flush == Z_PARTIAL_FLUSH) { - _tr_align(s); - } else { /* FULL_FLUSH or SYNC_FLUSH */ - _tr_stored_block(s, (char*)0, 0L, 0); - /* For a full flush, this empty block will be recognized - * as a special marker by inflate_sync(). - */ - if (flush == Z_FULL_FLUSH) { - CLEAR_HASH(s); /* forget history */ - } - } - flush_pending(strm); - if (strm->avail_out == 0) { - s->last_flush = -1; /* avoid BUF_ERROR at next call, see above */ - return Z_OK; - } - } - } - Assert(strm->avail_out > 0, "bug2"); - - if (flush != Z_FINISH) return Z_OK; - if (s->wrap <= 0) return Z_STREAM_END; - - /* Write the trailer */ -#ifdef GZIP - if (s->wrap == 2) { - put_byte(s, (Byte)(strm->adler & 0xff)); - put_byte(s, (Byte)((strm->adler >> 8) & 0xff)); - put_byte(s, (Byte)((strm->adler >> 16) & 0xff)); - put_byte(s, (Byte)((strm->adler >> 24) & 0xff)); - put_byte(s, (Byte)(strm->total_in & 0xff)); - put_byte(s, (Byte)((strm->total_in >> 8) & 0xff)); - put_byte(s, (Byte)((strm->total_in >> 16) & 0xff)); - put_byte(s, (Byte)((strm->total_in >> 24) & 0xff)); - } - else -#endif - { - putShortMSB(s, (uInt)(strm->adler >> 16)); - putShortMSB(s, (uInt)(strm->adler & 0xffff)); - } - flush_pending(strm); - /* If avail_out is zero, the application will call deflate again - * to flush the rest. - */ - if (s->wrap > 0) s->wrap = -s->wrap; /* write the trailer only once! */ - return s->pending != 0 ? Z_OK : Z_STREAM_END; -} - -/* ========================================================================= */ -int ZEXPORT deflateEnd (strm) - z_streamp strm; -{ - int status; - - if (strm == Z_NULL || strm->state == Z_NULL) return Z_STREAM_ERROR; - - status = strm->state->status; - if (status != INIT_STATE && - status != EXTRA_STATE && - status != NAME_STATE && - status != COMMENT_STATE && - status != HCRC_STATE && - status != BUSY_STATE && - status != FINISH_STATE) { - return Z_STREAM_ERROR; - } - - /* Deallocate in reverse order of allocations: */ - TRY_FREE(strm, strm->state->pending_buf); - TRY_FREE(strm, strm->state->head); - TRY_FREE(strm, strm->state->prev); - TRY_FREE(strm, strm->state->window); - - ZFREE(strm, strm->state); - strm->state = Z_NULL; - - return status == BUSY_STATE ? Z_DATA_ERROR : Z_OK; -} - -/* ========================================================================= - * Copy the source state to the destination state. - * To simplify the source, this is not supported for 16-bit MSDOS (which - * doesn't have enough memory anyway to duplicate compression states). - */ -int ZEXPORT deflateCopy (dest, source) - z_streamp dest; - z_streamp source; -{ -#ifdef MAXSEG_64K - return Z_STREAM_ERROR; -#else - deflate_state *ds; - deflate_state *ss; - ushf *overlay; - - - if (source == Z_NULL || dest == Z_NULL || source->state == Z_NULL) { - return Z_STREAM_ERROR; - } - - ss = source->state; - - zmemcpy(dest, source, sizeof(z_stream)); - - ds = (deflate_state *) ZALLOC(dest, 1, sizeof(deflate_state)); - if (ds == Z_NULL) return Z_MEM_ERROR; - dest->state = (struct internal_state FAR *) ds; - zmemcpy(ds, ss, sizeof(deflate_state)); - ds->strm = dest; - - ds->window = (Bytef *) ZALLOC(dest, ds->w_size, 2*sizeof(Byte)); - ds->prev = (Posf *) ZALLOC(dest, ds->w_size, sizeof(Pos)); - ds->head = (Posf *) ZALLOC(dest, ds->hash_size, sizeof(Pos)); - overlay = (ushf *) ZALLOC(dest, ds->lit_bufsize, sizeof(ush)+2); - ds->pending_buf = (uchf *) overlay; - - if (ds->window == Z_NULL || ds->prev == Z_NULL || ds->head == Z_NULL || - ds->pending_buf == Z_NULL) { - deflateEnd (dest); - return Z_MEM_ERROR; - } - /* following zmemcpy do not work for 16-bit MSDOS */ - zmemcpy(ds->window, ss->window, ds->w_size * 2 * sizeof(Byte)); - zmemcpy(ds->prev, ss->prev, ds->w_size * sizeof(Pos)); - zmemcpy(ds->head, ss->head, ds->hash_size * sizeof(Pos)); - zmemcpy(ds->pending_buf, ss->pending_buf, (uInt)ds->pending_buf_size); - - ds->pending_out = ds->pending_buf + (ss->pending_out - ss->pending_buf); - ds->d_buf = overlay + ds->lit_bufsize/sizeof(ush); - ds->l_buf = ds->pending_buf + (1+sizeof(ush))*ds->lit_bufsize; - - ds->l_desc.dyn_tree = ds->dyn_ltree; - ds->d_desc.dyn_tree = ds->dyn_dtree; - ds->bl_desc.dyn_tree = ds->bl_tree; - - return Z_OK; -#endif /* MAXSEG_64K */ -} - -/* =========================================================================== - * Read a new buffer from the current input stream, update the adler32 - * and total number of bytes read. All deflate() input goes through - * this function so some applications may wish to modify it to avoid - * allocating a large strm->next_in buffer and copying from it. - * (See also flush_pending()). - */ -local int read_buf(strm, buf, size) - z_streamp strm; - Bytef *buf; - unsigned size; -{ - unsigned len = strm->avail_in; - - if (len > size) len = size; - if (len == 0) return 0; - - strm->avail_in -= len; - - if (strm->state->wrap == 1) { - strm->adler = adler32(strm->adler, strm->next_in, len); - } -#ifdef GZIP - else if (strm->state->wrap == 2) { - strm->adler = crc32(strm->adler, strm->next_in, len); - } -#endif - zmemcpy(buf, strm->next_in, len); - strm->next_in += len; - strm->total_in += len; - - return (int)len; -} - -/* =========================================================================== - * Initialize the "longest match" routines for a new zlib stream - */ -local void lm_init (s) - deflate_state *s; -{ - s->window_size = (ulg)2L*s->w_size; - - CLEAR_HASH(s); - - /* Set the default configuration parameters: - */ - s->max_lazy_match = configuration_table[s->level].max_lazy; - s->good_match = configuration_table[s->level].good_length; - s->nice_match = configuration_table[s->level].nice_length; - s->max_chain_length = configuration_table[s->level].max_chain; - - s->strstart = 0; - s->block_start = 0L; - s->lookahead = 0; - s->match_length = s->prev_length = MIN_MATCH-1; - s->match_available = 0; - s->ins_h = 0; -#ifndef FASTEST -#ifdef ASMV - match_init(); /* initialize the asm code */ -#endif -#endif -} - -#ifndef FASTEST -/* =========================================================================== - * Set match_start to the longest match starting at the given string and - * return its length. Matches shorter or equal to prev_length are discarded, - * in which case the result is equal to prev_length and match_start is - * garbage. - * IN assertions: cur_match is the head of the hash chain for the current - * string (strstart) and its distance is <= MAX_DIST, and prev_length >= 1 - * OUT assertion: the match length is not greater than s->lookahead. - */ -#ifndef ASMV -/* For 80x86 and 680x0, an optimized version will be provided in match.asm or - * match.S. The code will be functionally equivalent. - */ -local uInt longest_match(s, cur_match) - deflate_state *s; - IPos cur_match; /* current match */ -{ - unsigned chain_length = s->max_chain_length;/* max hash chain length */ - register Bytef *scan = s->window + s->strstart; /* current string */ - register Bytef *match; /* matched string */ - register int len; /* length of current match */ - int best_len = s->prev_length; /* best match length so far */ - int nice_match = s->nice_match; /* stop if match long enough */ - IPos limit = s->strstart > (IPos)MAX_DIST(s) ? - s->strstart - (IPos)MAX_DIST(s) : NIL; - /* Stop when cur_match becomes <= limit. To simplify the code, - * we prevent matches with the string of window index 0. - */ - Posf *prev = s->prev; - uInt wmask = s->w_mask; - -#ifdef UNALIGNED_OK - /* Compare two bytes at a time. Note: this is not always beneficial. - * Try with and without -DUNALIGNED_OK to check. - */ - register Bytef *strend = s->window + s->strstart + MAX_MATCH - 1; - register ush scan_start = *(ushf*)scan; - register ush scan_end = *(ushf*)(scan+best_len-1); -#else - register Bytef *strend = s->window + s->strstart + MAX_MATCH; - register Byte scan_end1 = scan[best_len-1]; - register Byte scan_end = scan[best_len]; -#endif - - /* The code is optimized for HASH_BITS >= 8 and MAX_MATCH-2 multiple of 16. - * It is easy to get rid of this optimization if necessary. - */ - Assert(s->hash_bits >= 8 && MAX_MATCH == 258, "Code too clever"); - - /* Do not waste too much time if we already have a good match: */ - if (s->prev_length >= s->good_match) { - chain_length >>= 2; - } - /* Do not look for matches beyond the end of the input. This is necessary - * to make deflate deterministic. - */ - if ((uInt)nice_match > s->lookahead) nice_match = s->lookahead; - - Assert((ulg)s->strstart <= s->window_size-MIN_LOOKAHEAD, "need lookahead"); - - do { - Assert(cur_match < s->strstart, "no future"); - match = s->window + cur_match; - - /* Skip to next match if the match length cannot increase - * or if the match length is less than 2. Note that the checks below - * for insufficient lookahead only occur occasionally for performance - * reasons. Therefore uninitialized memory will be accessed, and - * conditional jumps will be made that depend on those values. - * However the length of the match is limited to the lookahead, so - * the output of deflate is not affected by the uninitialized values. - */ -#if (defined(UNALIGNED_OK) && MAX_MATCH == 258) - /* This code assumes sizeof(unsigned short) == 2. Do not use - * UNALIGNED_OK if your compiler uses a different size. - */ - if (*(ushf*)(match+best_len-1) != scan_end || - *(ushf*)match != scan_start) continue; - - /* It is not necessary to compare scan[2] and match[2] since they are - * always equal when the other bytes match, given that the hash keys - * are equal and that HASH_BITS >= 8. Compare 2 bytes at a time at - * strstart+3, +5, ... up to strstart+257. We check for insufficient - * lookahead only every 4th comparison; the 128th check will be made - * at strstart+257. If MAX_MATCH-2 is not a multiple of 8, it is - * necessary to put more guard bytes at the end of the window, or - * to check more often for insufficient lookahead. - */ - Assert(scan[2] == match[2], "scan[2]?"); - scan++, match++; - do { - } while (*(ushf*)(scan+=2) == *(ushf*)(match+=2) && - *(ushf*)(scan+=2) == *(ushf*)(match+=2) && - *(ushf*)(scan+=2) == *(ushf*)(match+=2) && - *(ushf*)(scan+=2) == *(ushf*)(match+=2) && - scan < strend); - /* The funny "do {}" generates better code on most compilers */ - - /* Here, scan <= window+strstart+257 */ - Assert(scan <= s->window+(unsigned)(s->window_size-1), "wild scan"); - if (*scan == *match) scan++; - - len = (MAX_MATCH - 1) - (int)(strend-scan); - scan = strend - (MAX_MATCH-1); - -#else /* UNALIGNED_OK */ - - if (match[best_len] != scan_end || - match[best_len-1] != scan_end1 || - *match != *scan || - *++match != scan[1]) continue; - - /* The check at best_len-1 can be removed because it will be made - * again later. (This heuristic is not always a win.) - * It is not necessary to compare scan[2] and match[2] since they - * are always equal when the other bytes match, given that - * the hash keys are equal and that HASH_BITS >= 8. - */ - scan += 2, match++; - Assert(*scan == *match, "match[2]?"); - - /* We check for insufficient lookahead only every 8th comparison; - * the 256th check will be made at strstart+258. - */ - do { - } while (*++scan == *++match && *++scan == *++match && - *++scan == *++match && *++scan == *++match && - *++scan == *++match && *++scan == *++match && - *++scan == *++match && *++scan == *++match && - scan < strend); - - Assert(scan <= s->window+(unsigned)(s->window_size-1), "wild scan"); - - len = MAX_MATCH - (int)(strend - scan); - scan = strend - MAX_MATCH; - -#endif /* UNALIGNED_OK */ - - if (len > best_len) { - s->match_start = cur_match; - best_len = len; - if (len >= nice_match) break; -#ifdef UNALIGNED_OK - scan_end = *(ushf*)(scan+best_len-1); -#else - scan_end1 = scan[best_len-1]; - scan_end = scan[best_len]; -#endif - } - } while ((cur_match = prev[cur_match & wmask]) > limit - && --chain_length != 0); - - if ((uInt)best_len <= s->lookahead) return (uInt)best_len; - return s->lookahead; -} -#endif /* ASMV */ -#endif /* FASTEST */ - -/* --------------------------------------------------------------------------- - * Optimized version for level == 1 or strategy == Z_RLE only - */ -local uInt longest_match_fast(s, cur_match) - deflate_state *s; - IPos cur_match; /* current match */ -{ - register Bytef *scan = s->window + s->strstart; /* current string */ - register Bytef *match; /* matched string */ - register int len; /* length of current match */ - register Bytef *strend = s->window + s->strstart + MAX_MATCH; - - /* The code is optimized for HASH_BITS >= 8 and MAX_MATCH-2 multiple of 16. - * It is easy to get rid of this optimization if necessary. - */ - Assert(s->hash_bits >= 8 && MAX_MATCH == 258, "Code too clever"); - - Assert((ulg)s->strstart <= s->window_size-MIN_LOOKAHEAD, "need lookahead"); - - Assert(cur_match < s->strstart, "no future"); - - match = s->window + cur_match; - - /* Return failure if the match length is less than 2: - */ - if (match[0] != scan[0] || match[1] != scan[1]) return MIN_MATCH-1; - - /* The check at best_len-1 can be removed because it will be made - * again later. (This heuristic is not always a win.) - * It is not necessary to compare scan[2] and match[2] since they - * are always equal when the other bytes match, given that - * the hash keys are equal and that HASH_BITS >= 8. - */ - scan += 2, match += 2; - Assert(*scan == *match, "match[2]?"); - - /* We check for insufficient lookahead only every 8th comparison; - * the 256th check will be made at strstart+258. - */ - do { - } while (*++scan == *++match && *++scan == *++match && - *++scan == *++match && *++scan == *++match && - *++scan == *++match && *++scan == *++match && - *++scan == *++match && *++scan == *++match && - scan < strend); - - Assert(scan <= s->window+(unsigned)(s->window_size-1), "wild scan"); - - len = MAX_MATCH - (int)(strend - scan); - - if (len < MIN_MATCH) return MIN_MATCH - 1; - - s->match_start = cur_match; - return (uInt)len <= s->lookahead ? (uInt)len : s->lookahead; -} - -#ifdef DEBUG -/* =========================================================================== - * Check that the match at match_start is indeed a match. - */ -local void check_match(s, start, match, length) - deflate_state *s; - IPos start, match; - int length; -{ - /* check that the match is indeed a match */ - if (zmemcmp(s->window + match, - s->window + start, length) != EQUAL) { - fprintf(stderr, " start %u, match %u, length %d\n", - start, match, length); - do { - fprintf(stderr, "%c%c", s->window[match++], s->window[start++]); - } while (--length != 0); - z_error("invalid match"); - } - if (z_verbose > 1) { - fprintf(stderr,"\\[%d,%d]", start-match, length); - do { putc(s->window[start++], stderr); } while (--length != 0); - } -} -#else -# define check_match(s, start, match, length) -#endif /* DEBUG */ - -/* =========================================================================== - * Fill the window when the lookahead becomes insufficient. - * Updates strstart and lookahead. - * - * IN assertion: lookahead < MIN_LOOKAHEAD - * OUT assertions: strstart <= window_size-MIN_LOOKAHEAD - * At least one byte has been read, or avail_in == 0; reads are - * performed for at least two bytes (required for the zip translate_eol - * option -- not supported here). - */ -local void fill_window(s) - deflate_state *s; -{ - register unsigned n, m; - register Posf *p; - unsigned more; /* Amount of free space at the end of the window. */ - uInt wsize = s->w_size; - - do { - more = (unsigned)(s->window_size -(ulg)s->lookahead -(ulg)s->strstart); - - /* Deal with !@#$% 64K limit: */ - if (sizeof(int) <= 2) { - if (more == 0 && s->strstart == 0 && s->lookahead == 0) { - more = wsize; - - } else if (more == (unsigned)(-1)) { - /* Very unlikely, but possible on 16 bit machine if - * strstart == 0 && lookahead == 1 (input done a byte at time) - */ - more--; - } - } - - /* If the window is almost full and there is insufficient lookahead, - * move the upper half to the lower one to make room in the upper half. - */ - if (s->strstart >= wsize+MAX_DIST(s)) { - - zmemcpy(s->window, s->window+wsize, (unsigned)wsize); - s->match_start -= wsize; - s->strstart -= wsize; /* we now have strstart >= MAX_DIST */ - s->block_start -= (long) wsize; - - /* Slide the hash table (could be avoided with 32 bit values - at the expense of memory usage). We slide even when level == 0 - to keep the hash table consistent if we switch back to level > 0 - later. (Using level 0 permanently is not an optimal usage of - zlib, so we don't care about this pathological case.) - */ - /* %%% avoid this when Z_RLE */ - n = s->hash_size; - p = &s->head[n]; - do { - m = *--p; - *p = (Pos)(m >= wsize ? m-wsize : NIL); - } while (--n); - - n = wsize; -#ifndef FASTEST - p = &s->prev[n]; - do { - m = *--p; - *p = (Pos)(m >= wsize ? m-wsize : NIL); - /* If n is not on any hash chain, prev[n] is garbage but - * its value will never be used. - */ - } while (--n); -#endif - more += wsize; - } - if (s->strm->avail_in == 0) return; - - /* If there was no sliding: - * strstart <= WSIZE+MAX_DIST-1 && lookahead <= MIN_LOOKAHEAD - 1 && - * more == window_size - lookahead - strstart - * => more >= window_size - (MIN_LOOKAHEAD-1 + WSIZE + MAX_DIST-1) - * => more >= window_size - 2*WSIZE + 2 - * In the BIG_MEM or MMAP case (not yet supported), - * window_size == input_size + MIN_LOOKAHEAD && - * strstart + s->lookahead <= input_size => more >= MIN_LOOKAHEAD. - * Otherwise, window_size == 2*WSIZE so more >= 2. - * If there was sliding, more >= WSIZE. So in all cases, more >= 2. - */ - Assert(more >= 2, "more < 2"); - - n = read_buf(s->strm, s->window + s->strstart + s->lookahead, more); - s->lookahead += n; - - /* Initialize the hash value now that we have some input: */ - if (s->lookahead >= MIN_MATCH) { - s->ins_h = s->window[s->strstart]; - UPDATE_HASH(s, s->ins_h, s->window[s->strstart+1]); -#if MIN_MATCH != 3 - Call UPDATE_HASH() MIN_MATCH-3 more times -#endif - } - /* If the whole input has less than MIN_MATCH bytes, ins_h is garbage, - * but this is not important since only literal bytes will be emitted. - */ - - } while (s->lookahead < MIN_LOOKAHEAD && s->strm->avail_in != 0); -} - -/* =========================================================================== - * Flush the current block, with given end-of-file flag. - * IN assertion: strstart is set to the end of the current match. - */ -#define FLUSH_BLOCK_ONLY(s, eof) { \ - _tr_flush_block(s, (s->block_start >= 0L ? \ - (charf *)&s->window[(unsigned)s->block_start] : \ - (charf *)Z_NULL), \ - (ulg)((long)s->strstart - s->block_start), \ - (eof)); \ - s->block_start = s->strstart; \ - flush_pending(s->strm); \ - Tracev((stderr,"[FLUSH]")); \ -} - -/* Same but force premature exit if necessary. */ -#define FLUSH_BLOCK(s, eof) { \ - FLUSH_BLOCK_ONLY(s, eof); \ - if (s->strm->avail_out == 0) return (eof) ? finish_started : need_more; \ -} - -/* =========================================================================== - * Copy without compression as much as possible from the input stream, return - * the current block state. - * This function does not insert new strings in the dictionary since - * uncompressible data is probably not useful. This function is used - * only for the level=0 compression option. - * NOTE: this function should be optimized to avoid extra copying from - * window to pending_buf. - */ -local block_state deflate_stored(s, flush) - deflate_state *s; - int flush; -{ - /* Stored blocks are limited to 0xffff bytes, pending_buf is limited - * to pending_buf_size, and each stored block has a 5 byte header: - */ - ulg max_block_size = 0xffff; - ulg max_start; - - if (max_block_size > s->pending_buf_size - 5) { - max_block_size = s->pending_buf_size - 5; - } - - /* Copy as much as possible from input to output: */ - for (;;) { - /* Fill the window as much as possible: */ - if (s->lookahead <= 1) { - - Assert(s->strstart < s->w_size+MAX_DIST(s) || - s->block_start >= (long)s->w_size, "slide too late"); - - fill_window(s); - if (s->lookahead == 0 && flush == Z_NO_FLUSH) return need_more; - - if (s->lookahead == 0) break; /* flush the current block */ - } - Assert(s->block_start >= 0L, "block gone"); - - s->strstart += s->lookahead; - s->lookahead = 0; - - /* Emit a stored block if pending_buf will be full: */ - max_start = s->block_start + max_block_size; - if (s->strstart == 0 || (ulg)s->strstart >= max_start) { - /* strstart == 0 is possible when wraparound on 16-bit machine */ - s->lookahead = (uInt)(s->strstart - max_start); - s->strstart = (uInt)max_start; - FLUSH_BLOCK(s, 0); - } - /* Flush if we may have to slide, otherwise block_start may become - * negative and the data will be gone: - */ - if (s->strstart - (uInt)s->block_start >= MAX_DIST(s)) { - FLUSH_BLOCK(s, 0); - } - } - FLUSH_BLOCK(s, flush == Z_FINISH); - return flush == Z_FINISH ? finish_done : block_done; -} - -/* =========================================================================== - * Compress as much as possible from the input stream, return the current - * block state. - * This function does not perform lazy evaluation of matches and inserts - * new strings in the dictionary only for unmatched strings or for short - * matches. It is used only for the fast compression options. - */ -local block_state deflate_fast(s, flush) - deflate_state *s; - int flush; -{ - IPos hash_head = NIL; /* head of the hash chain */ - int bflush; /* set if current block must be flushed */ - - for (;;) { - /* Make sure that we always have enough lookahead, except - * at the end of the input file. We need MAX_MATCH bytes - * for the next match, plus MIN_MATCH bytes to insert the - * string following the next match. - */ - if (s->lookahead < MIN_LOOKAHEAD) { - fill_window(s); - if (s->lookahead < MIN_LOOKAHEAD && flush == Z_NO_FLUSH) { - return need_more; - } - if (s->lookahead == 0) break; /* flush the current block */ - } - - /* Insert the string window[strstart .. strstart+2] in the - * dictionary, and set hash_head to the head of the hash chain: - */ - if (s->lookahead >= MIN_MATCH) { - INSERT_STRING(s, s->strstart, hash_head); - } - - /* Find the longest match, discarding those <= prev_length. - * At this point we have always match_length < MIN_MATCH - */ - if (hash_head != NIL && s->strstart - hash_head <= MAX_DIST(s)) { - /* To simplify the code, we prevent matches with the string - * of window index 0 (in particular we have to avoid a match - * of the string with itself at the start of the input file). - */ -#ifdef FASTEST - if ((s->strategy != Z_HUFFMAN_ONLY && s->strategy != Z_RLE) || - (s->strategy == Z_RLE && s->strstart - hash_head == 1)) { - s->match_length = longest_match_fast (s, hash_head); - } -#else - if (s->strategy != Z_HUFFMAN_ONLY && s->strategy != Z_RLE) { - s->match_length = longest_match (s, hash_head); - } else if (s->strategy == Z_RLE && s->strstart - hash_head == 1) { - s->match_length = longest_match_fast (s, hash_head); - } -#endif - /* longest_match() or longest_match_fast() sets match_start */ - } - if (s->match_length >= MIN_MATCH) { - check_match(s, s->strstart, s->match_start, s->match_length); - - _tr_tally_dist(s, s->strstart - s->match_start, - s->match_length - MIN_MATCH, bflush); - - s->lookahead -= s->match_length; - - /* Insert new strings in the hash table only if the match length - * is not too large. This saves time but degrades compression. - */ -#ifndef FASTEST - if (s->match_length <= s->max_insert_length && - s->lookahead >= MIN_MATCH) { - s->match_length--; /* string at strstart already in table */ - do { - s->strstart++; - INSERT_STRING(s, s->strstart, hash_head); - /* strstart never exceeds WSIZE-MAX_MATCH, so there are - * always MIN_MATCH bytes ahead. - */ - } while (--s->match_length != 0); - s->strstart++; - } else -#endif - { - s->strstart += s->match_length; - s->match_length = 0; - s->ins_h = s->window[s->strstart]; - UPDATE_HASH(s, s->ins_h, s->window[s->strstart+1]); -#if MIN_MATCH != 3 - Call UPDATE_HASH() MIN_MATCH-3 more times -#endif - /* If lookahead < MIN_MATCH, ins_h is garbage, but it does not - * matter since it will be recomputed at next deflate call. - */ - } - } else { - /* No match, output a literal byte */ - Tracevv((stderr,"%c", s->window[s->strstart])); - _tr_tally_lit (s, s->window[s->strstart], bflush); - s->lookahead--; - s->strstart++; - } - if (bflush) FLUSH_BLOCK(s, 0); - } - FLUSH_BLOCK(s, flush == Z_FINISH); - return flush == Z_FINISH ? finish_done : block_done; -} - -#ifndef FASTEST -/* =========================================================================== - * Same as above, but achieves better compression. We use a lazy - * evaluation for matches: a match is finally adopted only if there is - * no better match at the next window position. - */ -local block_state deflate_slow(s, flush) - deflate_state *s; - int flush; -{ - IPos hash_head = NIL; /* head of hash chain */ - int bflush; /* set if current block must be flushed */ - - /* Process the input block. */ - for (;;) { - /* Make sure that we always have enough lookahead, except - * at the end of the input file. We need MAX_MATCH bytes - * for the next match, plus MIN_MATCH bytes to insert the - * string following the next match. - */ - if (s->lookahead < MIN_LOOKAHEAD) { - fill_window(s); - if (s->lookahead < MIN_LOOKAHEAD && flush == Z_NO_FLUSH) { - return need_more; - } - if (s->lookahead == 0) break; /* flush the current block */ - } - - /* Insert the string window[strstart .. strstart+2] in the - * dictionary, and set hash_head to the head of the hash chain: - */ - if (s->lookahead >= MIN_MATCH) { - INSERT_STRING(s, s->strstart, hash_head); - } - - /* Find the longest match, discarding those <= prev_length. - */ - s->prev_length = s->match_length, s->prev_match = s->match_start; - s->match_length = MIN_MATCH-1; - - if (hash_head != NIL && s->prev_length < s->max_lazy_match && - s->strstart - hash_head <= MAX_DIST(s)) { - /* To simplify the code, we prevent matches with the string - * of window index 0 (in particular we have to avoid a match - * of the string with itself at the start of the input file). - */ - if (s->strategy != Z_HUFFMAN_ONLY && s->strategy != Z_RLE) { - s->match_length = longest_match (s, hash_head); - } else if (s->strategy == Z_RLE && s->strstart - hash_head == 1) { - s->match_length = longest_match_fast (s, hash_head); - } - /* longest_match() or longest_match_fast() sets match_start */ - - if (s->match_length <= 5 && (s->strategy == Z_FILTERED -#if TOO_FAR <= 32767 - || (s->match_length == MIN_MATCH && - s->strstart - s->match_start > TOO_FAR) -#endif - )) { - - /* If prev_match is also MIN_MATCH, match_start is garbage - * but we will ignore the current match anyway. - */ - s->match_length = MIN_MATCH-1; - } - } - /* If there was a match at the previous step and the current - * match is not better, output the previous match: - */ - if (s->prev_length >= MIN_MATCH && s->match_length <= s->prev_length) { - uInt max_insert = s->strstart + s->lookahead - MIN_MATCH; - /* Do not insert strings in hash table beyond this. */ - - check_match(s, s->strstart-1, s->prev_match, s->prev_length); - - _tr_tally_dist(s, s->strstart -1 - s->prev_match, - s->prev_length - MIN_MATCH, bflush); - - /* Insert in hash table all strings up to the end of the match. - * strstart-1 and strstart are already inserted. If there is not - * enough lookahead, the last two strings are not inserted in - * the hash table. - */ - s->lookahead -= s->prev_length-1; - s->prev_length -= 2; - do { - if (++s->strstart <= max_insert) { - INSERT_STRING(s, s->strstart, hash_head); - } - } while (--s->prev_length != 0); - s->match_available = 0; - s->match_length = MIN_MATCH-1; - s->strstart++; - - if (bflush) FLUSH_BLOCK(s, 0); - - } else if (s->match_available) { - /* If there was no match at the previous position, output a - * single literal. If there was a match but the current match - * is longer, truncate the previous match to a single literal. - */ - Tracevv((stderr,"%c", s->window[s->strstart-1])); - _tr_tally_lit(s, s->window[s->strstart-1], bflush); - if (bflush) { - FLUSH_BLOCK_ONLY(s, 0); - } - s->strstart++; - s->lookahead--; - if (s->strm->avail_out == 0) return need_more; - } else { - /* There is no previous match to compare with, wait for - * the next step to decide. - */ - s->match_available = 1; - s->strstart++; - s->lookahead--; - } - } - Assert (flush != Z_NO_FLUSH, "no flush?"); - if (s->match_available) { - Tracevv((stderr,"%c", s->window[s->strstart-1])); - _tr_tally_lit(s, s->window[s->strstart-1], bflush); - s->match_available = 0; - } - FLUSH_BLOCK(s, flush == Z_FINISH); - return flush == Z_FINISH ? finish_done : block_done; -} -#endif /* FASTEST */ - -#if 0 -/* =========================================================================== - * For Z_RLE, simply look for runs of bytes, generate matches only of distance - * one. Do not maintain a hash table. (It will be regenerated if this run of - * deflate switches away from Z_RLE.) - */ -local block_state deflate_rle(s, flush) - deflate_state *s; - int flush; -{ - int bflush; /* set if current block must be flushed */ - uInt run; /* length of run */ - uInt max; /* maximum length of run */ - uInt prev; /* byte at distance one to match */ - Bytef *scan; /* scan for end of run */ - - for (;;) { - /* Make sure that we always have enough lookahead, except - * at the end of the input file. We need MAX_MATCH bytes - * for the longest encodable run. - */ - if (s->lookahead < MAX_MATCH) { - fill_window(s); - if (s->lookahead < MAX_MATCH && flush == Z_NO_FLUSH) { - return need_more; - } - if (s->lookahead == 0) break; /* flush the current block */ - } - - /* See how many times the previous byte repeats */ - run = 0; - if (s->strstart > 0) { /* if there is a previous byte, that is */ - max = s->lookahead < MAX_MATCH ? s->lookahead : MAX_MATCH; - scan = s->window + s->strstart - 1; - prev = *scan++; - do { - if (*scan++ != prev) - break; - } while (++run < max); - } - - /* Emit match if have run of MIN_MATCH or longer, else emit literal */ - if (run >= MIN_MATCH) { - check_match(s, s->strstart, s->strstart - 1, run); - _tr_tally_dist(s, 1, run - MIN_MATCH, bflush); - s->lookahead -= run; - s->strstart += run; - } else { - /* No match, output a literal byte */ - Tracevv((stderr,"%c", s->window[s->strstart])); - _tr_tally_lit (s, s->window[s->strstart], bflush); - s->lookahead--; - s->strstart++; - } - if (bflush) FLUSH_BLOCK(s, 0); - } - FLUSH_BLOCK(s, flush == Z_FINISH); - return flush == Z_FINISH ? finish_done : block_done; -} -#endif diff --git a/src/3rdParty/CxImage/zlib/deflate.h b/src/3rdParty/CxImage/zlib/deflate.h deleted file mode 100644 index 222c53e043..0000000000 --- a/src/3rdParty/CxImage/zlib/deflate.h +++ /dev/null @@ -1,331 +0,0 @@ -/* deflate.h -- internal compression state - * Copyright (C) 1995-2004 Jean-loup Gailly - * For conditions of distribution and use, see copyright notice in zlib.h - */ - -/* WARNING: this file should *not* be used by applications. It is - part of the implementation of the compression library and is - subject to change. Applications should only use zlib.h. - */ - -/* @(#) $Id$ */ - -#ifndef DEFLATE_H -#define DEFLATE_H - -#include "zutil.h" - -/* define NO_GZIP when compiling if you want to disable gzip header and - trailer creation by deflate(). NO_GZIP would be used to avoid linking in - the crc code when it is not needed. For shared libraries, gzip encoding - should be left enabled. */ -#ifndef NO_GZIP -# define GZIP -#endif - -/* =========================================================================== - * Internal compression state. - */ - -#define LENGTH_CODES 29 -/* number of length codes, not counting the special END_BLOCK code */ - -#define LITERALS 256 -/* number of literal bytes 0..255 */ - -#define L_CODES (LITERALS+1+LENGTH_CODES) -/* number of Literal or Length codes, including the END_BLOCK code */ - -#define D_CODES 30 -/* number of distance codes */ - -#define BL_CODES 19 -/* number of codes used to transfer the bit lengths */ - -#define HEAP_SIZE (2*L_CODES+1) -/* maximum heap size */ - -#define MAX_BITS 15 -/* All codes must not exceed MAX_BITS bits */ - -#define INIT_STATE 42 -#define EXTRA_STATE 69 -#define NAME_STATE 73 -#define COMMENT_STATE 91 -#define HCRC_STATE 103 -#define BUSY_STATE 113 -#define FINISH_STATE 666 -/* Stream status */ - - -/* Data structure describing a single value and its code string. */ -typedef struct ct_data_s { - union { - ush freq; /* frequency count */ - ush code; /* bit string */ - } fc; - union { - ush dad; /* father node in Huffman tree */ - ush len; /* length of bit string */ - } dl; -} FAR ct_data; - -#define Freq fc.freq -#define Code fc.code -#define Dad dl.dad -#define Len dl.len - -typedef struct static_tree_desc_s static_tree_desc; - -typedef struct tree_desc_s { - ct_data *dyn_tree; /* the dynamic tree */ - int max_code; /* largest code with non zero frequency */ - static_tree_desc *stat_desc; /* the corresponding static tree */ -} FAR tree_desc; - -typedef ush Pos; -typedef Pos FAR Posf; -typedef unsigned IPos; - -/* A Pos is an index in the character window. We use short instead of int to - * save space in the various tables. IPos is used only for parameter passing. - */ - -typedef struct internal_state { - z_streamp strm; /* pointer back to this zlib stream */ - int status; /* as the name implies */ - Bytef *pending_buf; /* output still pending */ - ulg pending_buf_size; /* size of pending_buf */ - Bytef *pending_out; /* next pending byte to output to the stream */ - uInt pending; /* nb of bytes in the pending buffer */ - int wrap; /* bit 0 true for zlib, bit 1 true for gzip */ - gz_headerp gzhead; /* gzip header information to write */ - uInt gzindex; /* where in extra, name, or comment */ - Byte method; /* STORED (for zip only) or DEFLATED */ - int last_flush; /* value of flush param for previous deflate call */ - - /* used by deflate.c: */ - - uInt w_size; /* LZ77 window size (32K by default) */ - uInt w_bits; /* log2(w_size) (8..16) */ - uInt w_mask; /* w_size - 1 */ - - Bytef *window; - /* Sliding window. Input bytes are read into the second half of the window, - * and move to the first half later to keep a dictionary of at least wSize - * bytes. With this organization, matches are limited to a distance of - * wSize-MAX_MATCH bytes, but this ensures that IO is always - * performed with a length multiple of the block size. Also, it limits - * the window size to 64K, which is quite useful on MSDOS. - * To do: use the user input buffer as sliding window. - */ - - ulg window_size; - /* Actual size of window: 2*wSize, except when the user input buffer - * is directly used as sliding window. - */ - - Posf *prev; - /* Link to older string with same hash index. To limit the size of this - * array to 64K, this link is maintained only for the last 32K strings. - * An index in this array is thus a window index modulo 32K. - */ - - Posf *head; /* Heads of the hash chains or NIL. */ - - uInt ins_h; /* hash index of string to be inserted */ - uInt hash_size; /* number of elements in hash table */ - uInt hash_bits; /* log2(hash_size) */ - uInt hash_mask; /* hash_size-1 */ - - uInt hash_shift; - /* Number of bits by which ins_h must be shifted at each input - * step. It must be such that after MIN_MATCH steps, the oldest - * byte no longer takes part in the hash key, that is: - * hash_shift * MIN_MATCH >= hash_bits - */ - - long block_start; - /* Window position at the beginning of the current output block. Gets - * negative when the window is moved backwards. - */ - - uInt match_length; /* length of best match */ - IPos prev_match; /* previous match */ - int match_available; /* set if previous match exists */ - uInt strstart; /* start of string to insert */ - uInt match_start; /* start of matching string */ - uInt lookahead; /* number of valid bytes ahead in window */ - - uInt prev_length; - /* Length of the best match at previous step. Matches not greater than this - * are discarded. This is used in the lazy match evaluation. - */ - - uInt max_chain_length; - /* To speed up deflation, hash chains are never searched beyond this - * length. A higher limit improves compression ratio but degrades the - * speed. - */ - - uInt max_lazy_match; - /* Attempt to find a better match only when the current match is strictly - * smaller than this value. This mechanism is used only for compression - * levels >= 4. - */ -# define max_insert_length max_lazy_match - /* Insert new strings in the hash table only if the match length is not - * greater than this length. This saves time but degrades compression. - * max_insert_length is used only for compression levels <= 3. - */ - - int level; /* compression level (1..9) */ - int strategy; /* favor or force Huffman coding*/ - - uInt good_match; - /* Use a faster search when the previous match is longer than this */ - - int nice_match; /* Stop searching when current match exceeds this */ - - /* used by trees.c: */ - /* Didn't use ct_data typedef below to supress compiler warning */ - struct ct_data_s dyn_ltree[HEAP_SIZE]; /* literal and length tree */ - struct ct_data_s dyn_dtree[2*D_CODES+1]; /* distance tree */ - struct ct_data_s bl_tree[2*BL_CODES+1]; /* Huffman tree for bit lengths */ - - struct tree_desc_s l_desc; /* desc. for literal tree */ - struct tree_desc_s d_desc; /* desc. for distance tree */ - struct tree_desc_s bl_desc; /* desc. for bit length tree */ - - ush bl_count[MAX_BITS+1]; - /* number of codes at each bit length for an optimal tree */ - - int heap[2*L_CODES+1]; /* heap used to build the Huffman trees */ - int heap_len; /* number of elements in the heap */ - int heap_max; /* element of largest frequency */ - /* The sons of heap[n] are heap[2*n] and heap[2*n+1]. heap[0] is not used. - * The same heap array is used to build all trees. - */ - - uch depth[2*L_CODES+1]; - /* Depth of each subtree used as tie breaker for trees of equal frequency - */ - - uchf *l_buf; /* buffer for literals or lengths */ - - uInt lit_bufsize; - /* Size of match buffer for literals/lengths. There are 4 reasons for - * limiting lit_bufsize to 64K: - * - frequencies can be kept in 16 bit counters - * - if compression is not successful for the first block, all input - * data is still in the window so we can still emit a stored block even - * when input comes from standard input. (This can also be done for - * all blocks if lit_bufsize is not greater than 32K.) - * - if compression is not successful for a file smaller than 64K, we can - * even emit a stored file instead of a stored block (saving 5 bytes). - * This is applicable only for zip (not gzip or zlib). - * - creating new Huffman trees less frequently may not provide fast - * adaptation to changes in the input data statistics. (Take for - * example a binary file with poorly compressible code followed by - * a highly compressible string table.) Smaller buffer sizes give - * fast adaptation but have of course the overhead of transmitting - * trees more frequently. - * - I can't count above 4 - */ - - uInt last_lit; /* running index in l_buf */ - - ushf *d_buf; - /* Buffer for distances. To simplify the code, d_buf and l_buf have - * the same number of elements. To use different lengths, an extra flag - * array would be necessary. - */ - - ulg opt_len; /* bit length of current block with optimal trees */ - ulg static_len; /* bit length of current block with static trees */ - uInt matches; /* number of string matches in current block */ - int last_eob_len; /* bit length of EOB code for last block */ - -#ifdef DEBUG - ulg compressed_len; /* total bit length of compressed file mod 2^32 */ - ulg bits_sent; /* bit length of compressed data sent mod 2^32 */ -#endif - - ush bi_buf; - /* Output buffer. bits are inserted starting at the bottom (least - * significant bits). - */ - int bi_valid; - /* Number of valid bits in bi_buf. All bits above the last valid bit - * are always zero. - */ - -} FAR deflate_state; - -/* Output a byte on the stream. - * IN assertion: there is enough room in pending_buf. - */ -#define put_byte(s, c) {s->pending_buf[s->pending++] = (c);} - - -#define MIN_LOOKAHEAD (MAX_MATCH+MIN_MATCH+1) -/* Minimum amount of lookahead, except at the end of the input file. - * See deflate.c for comments about the MIN_MATCH+1. - */ - -#define MAX_DIST(s) ((s)->w_size-MIN_LOOKAHEAD) -/* In order to simplify the code, particularly on 16 bit machines, match - * distances are limited to MAX_DIST instead of WSIZE. - */ - - /* in trees.c */ -void _tr_init OF((deflate_state *s)); -int _tr_tally OF((deflate_state *s, unsigned dist, unsigned lc)); -void _tr_flush_block OF((deflate_state *s, charf *buf, ulg stored_len, - int eof)); -void _tr_align OF((deflate_state *s)); -void _tr_stored_block OF((deflate_state *s, charf *buf, ulg stored_len, - int eof)); - -#define d_code(dist) \ - ((dist) < 256 ? _dist_code[dist] : _dist_code[256+((dist)>>7)]) -/* Mapping from a distance to a distance code. dist is the distance - 1 and - * must not have side effects. _dist_code[256] and _dist_code[257] are never - * used. - */ - -#ifndef DEBUG -/* Inline versions of _tr_tally for speed: */ - -#if defined(GEN_TREES_H) || !defined(STDC) - extern uch _length_code[]; - extern uch _dist_code[]; -#else - extern const uch _length_code[]; - extern const uch _dist_code[]; -#endif - -# define _tr_tally_lit(s, c, flush) \ - { uch cc = (c); \ - s->d_buf[s->last_lit] = 0; \ - s->l_buf[s->last_lit++] = cc; \ - s->dyn_ltree[cc].Freq++; \ - flush = (s->last_lit == s->lit_bufsize-1); \ - } -# define _tr_tally_dist(s, distance, length, flush) \ - { uch len = (length); \ - ush dist = (distance); \ - s->d_buf[s->last_lit] = dist; \ - s->l_buf[s->last_lit++] = len; \ - dist--; \ - s->dyn_ltree[_length_code[len]+LITERALS+1].Freq++; \ - s->dyn_dtree[d_code(dist)].Freq++; \ - flush = (s->last_lit == s->lit_bufsize-1); \ - } -#else -# define _tr_tally_lit(s, c, flush) flush = _tr_tally(s, 0, c) -# define _tr_tally_dist(s, distance, length, flush) \ - flush = _tr_tally(s, distance, length) -#endif - -#endif /* DEFLATE_H */ diff --git a/src/3rdParty/CxImage/zlib/gzio.c b/src/3rdParty/CxImage/zlib/gzio.c deleted file mode 100644 index 5e20a4aa0d..0000000000 --- a/src/3rdParty/CxImage/zlib/gzio.c +++ /dev/null @@ -1,1026 +0,0 @@ -/* gzio.c -- IO on .gz files - * Copyright (C) 1995-2005 Jean-loup Gailly. - * For conditions of distribution and use, see copyright notice in zlib.h - * - * Compile this file with -DNO_GZCOMPRESS to avoid the compression code. - */ - -/* @(#) $Id$ */ - -#include - -#include "zutil.h" - -#ifdef NO_DEFLATE /* for compatibility with old definition */ -# define NO_GZCOMPRESS -#endif - -#ifndef NO_DUMMY_DECL -struct internal_state {int dummy;}; /* for buggy compilers */ -#endif - -#ifndef Z_BUFSIZE -# ifdef MAXSEG_64K -# define Z_BUFSIZE 4096 /* minimize memory usage for 16-bit DOS */ -# else -# define Z_BUFSIZE 16384 -# endif -#endif -#ifndef Z_PRINTF_BUFSIZE -# define Z_PRINTF_BUFSIZE 4096 -#endif - -#ifdef __MVS__ -# pragma map (fdopen , "\174\174FDOPEN") - FILE *fdopen(int, const char *); -#endif - -#ifndef STDC -extern voidp malloc OF((uInt size)); -extern void free OF((voidpf ptr)); -#endif - -#define ALLOC(size) malloc(size) -#define TRYFREE(p) {if (p) free(p);} - -static int const gz_magic[2] = {0x1f, 0x8b}; /* gzip magic header */ - -/* gzip flag byte */ -#define ASCII_FLAG 0x01 /* bit 0 set: file probably ascii text */ -#define HEAD_CRC 0x02 /* bit 1 set: header CRC present */ -#define EXTRA_FIELD 0x04 /* bit 2 set: extra field present */ -#define ORIG_NAME 0x08 /* bit 3 set: original file name present */ -#define COMMENT 0x10 /* bit 4 set: file comment present */ -#define RESERVED 0xE0 /* bits 5..7: reserved */ - -typedef struct gz_stream { - z_stream stream; - int z_err; /* error code for last stream operation */ - int z_eof; /* set if end of input file */ - FILE *file; /* .gz file */ - Byte *inbuf; /* input buffer */ - Byte *outbuf; /* output buffer */ - uLong crc; /* crc32 of uncompressed data */ - char *msg; /* error message */ - char *path; /* path name for debugging only */ - int transparent; /* 1 if input file is not a .gz file */ - char mode; /* 'w' or 'r' */ - z_off_t start; /* start of compressed data in file (header skipped) */ - z_off_t in; /* bytes into deflate or inflate */ - z_off_t out; /* bytes out of deflate or inflate */ - int back; /* one character push-back */ - int last; /* true if push-back is last character */ -} gz_stream; - - -local gzFile gz_open OF((const char *path, const char *mode, int fd)); -local int do_flush OF((gzFile file, int flush)); -local int get_byte OF((gz_stream *s)); -local void check_header OF((gz_stream *s)); -local int destroy OF((gz_stream *s)); -local void putLong OF((FILE *file, uLong x)); -local uLong getLong OF((gz_stream *s)); - -/* =========================================================================== - Opens a gzip (.gz) file for reading or writing. The mode parameter - is as in fopen ("rb" or "wb"). The file is given either by file descriptor - or path name (if fd == -1). - gz_open returns NULL if the file could not be opened or if there was - insufficient memory to allocate the (de)compression state; errno - can be checked to distinguish the two cases (if errno is zero, the - zlib error is Z_MEM_ERROR). -*/ -local gzFile gz_open (path, mode, fd) - const char *path; - const char *mode; - int fd; -{ - int err; - int level = Z_DEFAULT_COMPRESSION; /* compression level */ - int strategy = Z_DEFAULT_STRATEGY; /* compression strategy */ - char *p = (char*)mode; - gz_stream *s; - char fmode[80]; /* copy of mode, without the compression level */ - char *m = fmode; - - if (!path || !mode) return Z_NULL; - - s = (gz_stream *)ALLOC(sizeof(gz_stream)); - if (!s) return Z_NULL; - - s->stream.zalloc = (alloc_func)0; - s->stream.zfree = (free_func)0; - s->stream.opaque = (voidpf)0; - s->stream.next_in = s->inbuf = Z_NULL; - s->stream.next_out = s->outbuf = Z_NULL; - s->stream.avail_in = s->stream.avail_out = 0; - s->file = NULL; - s->z_err = Z_OK; - s->z_eof = 0; - s->in = 0; - s->out = 0; - s->back = EOF; - s->crc = crc32(0L, Z_NULL, 0); - s->msg = NULL; - s->transparent = 0; - - s->path = (char*)ALLOC(strlen(path)+1); - if (s->path == NULL) { - return destroy(s), (gzFile)Z_NULL; - } - strcpy(s->path, path); /* do this early for debugging */ - - s->mode = '\0'; - do { - if (*p == 'r') s->mode = 'r'; - if (*p == 'w' || *p == 'a') s->mode = 'w'; - if (*p >= '0' && *p <= '9') { - level = *p - '0'; - } else if (*p == 'f') { - strategy = Z_FILTERED; - } else if (*p == 'h') { - strategy = Z_HUFFMAN_ONLY; - } else if (*p == 'R') { - strategy = Z_RLE; - } else { - *m++ = *p; /* copy the mode */ - } - } while (*p++ && m != fmode + sizeof(fmode)); - if (s->mode == '\0') return destroy(s), (gzFile)Z_NULL; - - if (s->mode == 'w') { -#ifdef NO_GZCOMPRESS - err = Z_STREAM_ERROR; -#else - err = deflateInit2(&(s->stream), level, - Z_DEFLATED, -MAX_WBITS, DEF_MEM_LEVEL, strategy); - /* windowBits is passed < 0 to suppress zlib header */ - - s->stream.next_out = s->outbuf = (Byte*)ALLOC(Z_BUFSIZE); -#endif - if (err != Z_OK || s->outbuf == Z_NULL) { - return destroy(s), (gzFile)Z_NULL; - } - } else { - s->stream.next_in = s->inbuf = (Byte*)ALLOC(Z_BUFSIZE); - - err = inflateInit2(&(s->stream), -MAX_WBITS); - /* windowBits is passed < 0 to tell that there is no zlib header. - * Note that in this case inflate *requires* an extra "dummy" byte - * after the compressed stream in order to complete decompression and - * return Z_STREAM_END. Here the gzip CRC32 ensures that 4 bytes are - * present after the compressed stream. - */ - if (err != Z_OK || s->inbuf == Z_NULL) { - return destroy(s), (gzFile)Z_NULL; - } - } - s->stream.avail_out = Z_BUFSIZE; - - errno = 0; - s->file = fd < 0 ? F_OPEN(path, fmode) : (FILE*)fdopen(fd, fmode); - - if (s->file == NULL) { - return destroy(s), (gzFile)Z_NULL; - } - if (s->mode == 'w') { - /* Write a very simple .gz header: - */ - fprintf(s->file, "%c%c%c%c%c%c%c%c%c%c", gz_magic[0], gz_magic[1], - Z_DEFLATED, 0 /*flags*/, 0,0,0,0 /*time*/, 0 /*xflags*/, OS_CODE); - s->start = 10L; - /* We use 10L instead of ftell(s->file) to because ftell causes an - * fflush on some systems. This version of the library doesn't use - * start anyway in write mode, so this initialization is not - * necessary. - */ - } else { - check_header(s); /* skip the .gz header */ - s->start = ftell(s->file) - s->stream.avail_in; - } - - return (gzFile)s; -} - -/* =========================================================================== - Opens a gzip (.gz) file for reading or writing. -*/ -gzFile ZEXPORT gzopen (path, mode) - const char *path; - const char *mode; -{ - return gz_open (path, mode, -1); -} - -/* =========================================================================== - Associate a gzFile with the file descriptor fd. fd is not dup'ed here - to mimic the behavio(u)r of fdopen. -*/ -gzFile ZEXPORT gzdopen (fd, mode) - int fd; - const char *mode; -{ - char name[46]; /* allow for up to 128-bit integers */ - - if (fd < 0) return (gzFile)Z_NULL; - sprintf(name, "", fd); /* for debugging */ - - return gz_open (name, mode, fd); -} - -/* =========================================================================== - * Update the compression level and strategy - */ -int ZEXPORT gzsetparams (file, level, strategy) - gzFile file; - int level; - int strategy; -{ - gz_stream *s = (gz_stream*)file; - - if (s == NULL || s->mode != 'w') return Z_STREAM_ERROR; - - /* Make room to allow flushing */ - if (s->stream.avail_out == 0) { - - s->stream.next_out = s->outbuf; - if (fwrite(s->outbuf, 1, Z_BUFSIZE, s->file) != Z_BUFSIZE) { - s->z_err = Z_ERRNO; - } - s->stream.avail_out = Z_BUFSIZE; - } - - return deflateParams (&(s->stream), level, strategy); -} - -/* =========================================================================== - Read a byte from a gz_stream; update next_in and avail_in. Return EOF - for end of file. - IN assertion: the stream s has been sucessfully opened for reading. -*/ -local int get_byte(s) - gz_stream *s; -{ - if (s->z_eof) return EOF; - if (s->stream.avail_in == 0) { - errno = 0; - s->stream.avail_in = (uInt)fread(s->inbuf, 1, Z_BUFSIZE, s->file); - if (s->stream.avail_in == 0) { - s->z_eof = 1; - if (ferror(s->file)) s->z_err = Z_ERRNO; - return EOF; - } - s->stream.next_in = s->inbuf; - } - s->stream.avail_in--; - return *(s->stream.next_in)++; -} - -/* =========================================================================== - Check the gzip header of a gz_stream opened for reading. Set the stream - mode to transparent if the gzip magic header is not present; set s->err - to Z_DATA_ERROR if the magic header is present but the rest of the header - is incorrect. - IN assertion: the stream s has already been created sucessfully; - s->stream.avail_in is zero for the first time, but may be non-zero - for concatenated .gz files. -*/ -local void check_header(s) - gz_stream *s; -{ - int method; /* method byte */ - int flags; /* flags byte */ - uInt len; - int c; - - /* Assure two bytes in the buffer so we can peek ahead -- handle case - where first byte of header is at the end of the buffer after the last - gzip segment */ - len = s->stream.avail_in; - if (len < 2) { - if (len) s->inbuf[0] = s->stream.next_in[0]; - errno = 0; - len = (uInt)fread(s->inbuf + len, 1, Z_BUFSIZE >> len, s->file); - if (len == 0 && ferror(s->file)) s->z_err = Z_ERRNO; - s->stream.avail_in += len; - s->stream.next_in = s->inbuf; - if (s->stream.avail_in < 2) { - s->transparent = s->stream.avail_in; - return; - } - } - - /* Peek ahead to check the gzip magic header */ - if (s->stream.next_in[0] != gz_magic[0] || - s->stream.next_in[1] != gz_magic[1]) { - s->transparent = 1; - return; - } - s->stream.avail_in -= 2; - s->stream.next_in += 2; - - /* Check the rest of the gzip header */ - method = get_byte(s); - flags = get_byte(s); - if (method != Z_DEFLATED || (flags & RESERVED) != 0) { - s->z_err = Z_DATA_ERROR; - return; - } - - /* Discard time, xflags and OS code: */ - for (len = 0; len < 6; len++) (void)get_byte(s); - - if ((flags & EXTRA_FIELD) != 0) { /* skip the extra field */ - len = (uInt)get_byte(s); - len += ((uInt)get_byte(s))<<8; - /* len is garbage if EOF but the loop below will quit anyway */ - while (len-- != 0 && get_byte(s) != EOF) ; - } - if ((flags & ORIG_NAME) != 0) { /* skip the original file name */ - while ((c = get_byte(s)) != 0 && c != EOF) ; - } - if ((flags & COMMENT) != 0) { /* skip the .gz file comment */ - while ((c = get_byte(s)) != 0 && c != EOF) ; - } - if ((flags & HEAD_CRC) != 0) { /* skip the header crc */ - for (len = 0; len < 2; len++) (void)get_byte(s); - } - s->z_err = s->z_eof ? Z_DATA_ERROR : Z_OK; -} - - /* =========================================================================== - * Cleanup then free the given gz_stream. Return a zlib error code. - Try freeing in the reverse order of allocations. - */ -local int destroy (s) - gz_stream *s; -{ - int err = Z_OK; - - if (!s) return Z_STREAM_ERROR; - - TRYFREE(s->msg); - - if (s->stream.state != NULL) { - if (s->mode == 'w') { -#ifdef NO_GZCOMPRESS - err = Z_STREAM_ERROR; -#else - err = deflateEnd(&(s->stream)); -#endif - } else if (s->mode == 'r') { - err = inflateEnd(&(s->stream)); - } - } - if (s->file != NULL && fclose(s->file)) { -#ifdef ESPIPE - if (errno != ESPIPE) /* fclose is broken for pipes in HP/UX */ -#endif - err = Z_ERRNO; - } - if (s->z_err < 0) err = s->z_err; - - TRYFREE(s->inbuf); - TRYFREE(s->outbuf); - TRYFREE(s->path); - TRYFREE(s); - return err; -} - -/* =========================================================================== - Reads the given number of uncompressed bytes from the compressed file. - gzread returns the number of bytes actually read (0 for end of file). -*/ -int ZEXPORT gzread (file, buf, len) - gzFile file; - voidp buf; - unsigned len; -{ - gz_stream *s = (gz_stream*)file; - Bytef *start = (Bytef*)buf; /* starting point for crc computation */ - Byte *next_out; /* == stream.next_out but not forced far (for MSDOS) */ - - if (s == NULL || s->mode != 'r') return Z_STREAM_ERROR; - - if (s->z_err == Z_DATA_ERROR || s->z_err == Z_ERRNO) return -1; - if (s->z_err == Z_STREAM_END) return 0; /* EOF */ - - next_out = (Byte*)buf; - s->stream.next_out = (Bytef*)buf; - s->stream.avail_out = len; - - if (s->stream.avail_out && s->back != EOF) { - *next_out++ = s->back; - s->stream.next_out++; - s->stream.avail_out--; - s->back = EOF; - s->out++; - start++; - if (s->last) { - s->z_err = Z_STREAM_END; - return 1; - } - } - - while (s->stream.avail_out != 0) { - - if (s->transparent) { - /* Copy first the lookahead bytes: */ - uInt n = s->stream.avail_in; - if (n > s->stream.avail_out) n = s->stream.avail_out; - if (n > 0) { - zmemcpy(s->stream.next_out, s->stream.next_in, n); - next_out += n; - s->stream.next_out = next_out; - s->stream.next_in += n; - s->stream.avail_out -= n; - s->stream.avail_in -= n; - } - if (s->stream.avail_out > 0) { - s->stream.avail_out -= - (uInt)fread(next_out, 1, s->stream.avail_out, s->file); - } - len -= s->stream.avail_out; - s->in += len; - s->out += len; - if (len == 0) s->z_eof = 1; - return (int)len; - } - if (s->stream.avail_in == 0 && !s->z_eof) { - - errno = 0; - s->stream.avail_in = (uInt)fread(s->inbuf, 1, Z_BUFSIZE, s->file); - if (s->stream.avail_in == 0) { - s->z_eof = 1; - if (ferror(s->file)) { - s->z_err = Z_ERRNO; - break; - } - } - s->stream.next_in = s->inbuf; - } - s->in += s->stream.avail_in; - s->out += s->stream.avail_out; - s->z_err = inflate(&(s->stream), Z_NO_FLUSH); - s->in -= s->stream.avail_in; - s->out -= s->stream.avail_out; - - if (s->z_err == Z_STREAM_END) { - /* Check CRC and original size */ - s->crc = crc32(s->crc, start, (uInt)(s->stream.next_out - start)); - start = s->stream.next_out; - - if (getLong(s) != s->crc) { - s->z_err = Z_DATA_ERROR; - } else { - (void)getLong(s); - /* The uncompressed length returned by above getlong() may be - * different from s->out in case of concatenated .gz files. - * Check for such files: - */ - check_header(s); - if (s->z_err == Z_OK) { - inflateReset(&(s->stream)); - s->crc = crc32(0L, Z_NULL, 0); - } - } - } - if (s->z_err != Z_OK || s->z_eof) break; - } - s->crc = crc32(s->crc, start, (uInt)(s->stream.next_out - start)); - - if (len == s->stream.avail_out && - (s->z_err == Z_DATA_ERROR || s->z_err == Z_ERRNO)) - return -1; - return (int)(len - s->stream.avail_out); -} - - -/* =========================================================================== - Reads one byte from the compressed file. gzgetc returns this byte - or -1 in case of end of file or error. -*/ -int ZEXPORT gzgetc(file) - gzFile file; -{ - unsigned char c; - - return gzread(file, &c, 1) == 1 ? c : -1; -} - - -/* =========================================================================== - Push one byte back onto the stream. -*/ -int ZEXPORT gzungetc(c, file) - int c; - gzFile file; -{ - gz_stream *s = (gz_stream*)file; - - if (s == NULL || s->mode != 'r' || c == EOF || s->back != EOF) return EOF; - s->back = c; - s->out--; - s->last = (s->z_err == Z_STREAM_END); - if (s->last) s->z_err = Z_OK; - s->z_eof = 0; - return c; -} - - -/* =========================================================================== - Reads bytes from the compressed file until len-1 characters are - read, or a newline character is read and transferred to buf, or an - end-of-file condition is encountered. The string is then terminated - with a null character. - gzgets returns buf, or Z_NULL in case of error. - - The current implementation is not optimized at all. -*/ -char * ZEXPORT gzgets(file, buf, len) - gzFile file; - char *buf; - int len; -{ - char *b = buf; - if (buf == Z_NULL || len <= 0) return Z_NULL; - - while (--len > 0 && gzread(file, buf, 1) == 1 && *buf++ != '\n') ; - *buf = '\0'; - return b == buf && len > 0 ? Z_NULL : b; -} - - -#ifndef NO_GZCOMPRESS -/* =========================================================================== - Writes the given number of uncompressed bytes into the compressed file. - gzwrite returns the number of bytes actually written (0 in case of error). -*/ -int ZEXPORT gzwrite (file, buf, len) - gzFile file; - voidpc buf; - unsigned len; -{ - gz_stream *s = (gz_stream*)file; - - if (s == NULL || s->mode != 'w') return Z_STREAM_ERROR; - - s->stream.next_in = (Bytef*)buf; - s->stream.avail_in = len; - - while (s->stream.avail_in != 0) { - - if (s->stream.avail_out == 0) { - - s->stream.next_out = s->outbuf; - if (fwrite(s->outbuf, 1, Z_BUFSIZE, s->file) != Z_BUFSIZE) { - s->z_err = Z_ERRNO; - break; - } - s->stream.avail_out = Z_BUFSIZE; - } - s->in += s->stream.avail_in; - s->out += s->stream.avail_out; - s->z_err = deflate(&(s->stream), Z_NO_FLUSH); - s->in -= s->stream.avail_in; - s->out -= s->stream.avail_out; - if (s->z_err != Z_OK) break; - } - s->crc = crc32(s->crc, (const Bytef *)buf, len); - - return (int)(len - s->stream.avail_in); -} - - -/* =========================================================================== - Converts, formats, and writes the args to the compressed file under - control of the format string, as in fprintf. gzprintf returns the number of - uncompressed bytes actually written (0 in case of error). -*/ -#ifdef STDC -#include - -int ZEXPORTVA gzprintf (gzFile file, const char *format, /* args */ ...) -{ - char buf[Z_PRINTF_BUFSIZE]; - va_list va; - int len; - - buf[sizeof(buf) - 1] = 0; - va_start(va, format); -#ifdef NO_vsnprintf -# ifdef HAS_vsprintf_void - (void)vsprintf(buf, format, va); - va_end(va); - for (len = 0; len < sizeof(buf); len++) - if (buf[len] == 0) break; -# else - len = vsprintf(buf, format, va); - va_end(va); -# endif -#else -# ifdef HAS_vsnprintf_void - (void)vsnprintf(buf, sizeof(buf), format, va); - va_end(va); - len = strlen(buf); -# else - len = vsnprintf(buf, sizeof(buf), format, va); - va_end(va); -# endif -#endif - if (len <= 0 || len >= (int)sizeof(buf) || buf[sizeof(buf) - 1] != 0) - return 0; - return gzwrite(file, buf, (unsigned)len); -} -#else /* not ANSI C */ - -int ZEXPORTVA gzprintf (file, format, a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, - a11, a12, a13, a14, a15, a16, a17, a18, a19, a20) - gzFile file; - const char *format; - int a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, - a11, a12, a13, a14, a15, a16, a17, a18, a19, a20; -{ - char buf[Z_PRINTF_BUFSIZE]; - int len; - - buf[sizeof(buf) - 1] = 0; -#ifdef NO_snprintf -# ifdef HAS_sprintf_void - sprintf(buf, format, a1, a2, a3, a4, a5, a6, a7, a8, - a9, a10, a11, a12, a13, a14, a15, a16, a17, a18, a19, a20); - for (len = 0; len < sizeof(buf); len++) - if (buf[len] == 0) break; -# else - len = sprintf(buf, format, a1, a2, a3, a4, a5, a6, a7, a8, - a9, a10, a11, a12, a13, a14, a15, a16, a17, a18, a19, a20); -# endif -#else -# ifdef HAS_snprintf_void - snprintf(buf, sizeof(buf), format, a1, a2, a3, a4, a5, a6, a7, a8, - a9, a10, a11, a12, a13, a14, a15, a16, a17, a18, a19, a20); - len = strlen(buf); -# else - len = snprintf(buf, sizeof(buf), format, a1, a2, a3, a4, a5, a6, a7, a8, - a9, a10, a11, a12, a13, a14, a15, a16, a17, a18, a19, a20); -# endif -#endif - if (len <= 0 || len >= sizeof(buf) || buf[sizeof(buf) - 1] != 0) - return 0; - return gzwrite(file, buf, len); -} -#endif - -/* =========================================================================== - Writes c, converted to an unsigned char, into the compressed file. - gzputc returns the value that was written, or -1 in case of error. -*/ -int ZEXPORT gzputc(file, c) - gzFile file; - int c; -{ - unsigned char cc = (unsigned char) c; /* required for big endian systems */ - - return gzwrite(file, &cc, 1) == 1 ? (int)cc : -1; -} - - -/* =========================================================================== - Writes the given null-terminated string to the compressed file, excluding - the terminating null character. - gzputs returns the number of characters written, or -1 in case of error. -*/ -int ZEXPORT gzputs(file, s) - gzFile file; - const char *s; -{ - return gzwrite(file, (char*)s, (unsigned)strlen(s)); -} - - -/* =========================================================================== - Flushes all pending output into the compressed file. The parameter - flush is as in the deflate() function. -*/ -local int do_flush (file, flush) - gzFile file; - int flush; -{ - uInt len; - int done = 0; - gz_stream *s = (gz_stream*)file; - - if (s == NULL || s->mode != 'w') return Z_STREAM_ERROR; - - s->stream.avail_in = 0; /* should be zero already anyway */ - - for (;;) { - len = Z_BUFSIZE - s->stream.avail_out; - - if (len != 0) { - if ((uInt)fwrite(s->outbuf, 1, len, s->file) != len) { - s->z_err = Z_ERRNO; - return Z_ERRNO; - } - s->stream.next_out = s->outbuf; - s->stream.avail_out = Z_BUFSIZE; - } - if (done) break; - s->out += s->stream.avail_out; - s->z_err = deflate(&(s->stream), flush); - s->out -= s->stream.avail_out; - - /* Ignore the second of two consecutive flushes: */ - if (len == 0 && s->z_err == Z_BUF_ERROR) s->z_err = Z_OK; - - /* deflate has finished flushing only when it hasn't used up - * all the available space in the output buffer: - */ - done = (s->stream.avail_out != 0 || s->z_err == Z_STREAM_END); - - if (s->z_err != Z_OK && s->z_err != Z_STREAM_END) break; - } - return s->z_err == Z_STREAM_END ? Z_OK : s->z_err; -} - -int ZEXPORT gzflush (file, flush) - gzFile file; - int flush; -{ - gz_stream *s = (gz_stream*)file; - int err = do_flush (file, flush); - - if (err) return err; - fflush(s->file); - return s->z_err == Z_STREAM_END ? Z_OK : s->z_err; -} -#endif /* NO_GZCOMPRESS */ - -/* =========================================================================== - Sets the starting position for the next gzread or gzwrite on the given - compressed file. The offset represents a number of bytes in the - gzseek returns the resulting offset location as measured in bytes from - the beginning of the uncompressed stream, or -1 in case of error. - SEEK_END is not implemented, returns error. - In this version of the library, gzseek can be extremely slow. -*/ -z_off_t ZEXPORT gzseek (file, offset, whence) - gzFile file; - z_off_t offset; - int whence; -{ - gz_stream *s = (gz_stream*)file; - - if (s == NULL || whence == SEEK_END || - s->z_err == Z_ERRNO || s->z_err == Z_DATA_ERROR) { - return -1L; - } - - if (s->mode == 'w') { -#ifdef NO_GZCOMPRESS - return -1L; -#else - if (whence == SEEK_SET) { - offset -= s->in; - } - if (offset < 0) return -1L; - - /* At this point, offset is the number of zero bytes to write. */ - if (s->inbuf == Z_NULL) { - s->inbuf = (Byte*)ALLOC(Z_BUFSIZE); /* for seeking */ - if (s->inbuf == Z_NULL) return -1L; - zmemzero(s->inbuf, Z_BUFSIZE); - } - while (offset > 0) { - uInt size = Z_BUFSIZE; - if (offset < Z_BUFSIZE) size = (uInt)offset; - - size = gzwrite(file, s->inbuf, size); - if (size == 0) return -1L; - - offset -= size; - } - return s->in; -#endif - } - /* Rest of function is for reading only */ - - /* compute absolute position */ - if (whence == SEEK_CUR) { - offset += s->out; - } - if (offset < 0) return -1L; - - if (s->transparent) { - /* map to fseek */ - s->back = EOF; - s->stream.avail_in = 0; - s->stream.next_in = s->inbuf; - if (fseek(s->file, offset, SEEK_SET) < 0) return -1L; - - s->in = s->out = offset; - return offset; - } - - /* For a negative seek, rewind and use positive seek */ - if (offset >= s->out) { - offset -= s->out; - } else if (gzrewind(file) < 0) { - return -1L; - } - /* offset is now the number of bytes to skip. */ - - if (offset != 0 && s->outbuf == Z_NULL) { - s->outbuf = (Byte*)ALLOC(Z_BUFSIZE); - if (s->outbuf == Z_NULL) return -1L; - } - if (offset && s->back != EOF) { - s->back = EOF; - s->out++; - offset--; - if (s->last) s->z_err = Z_STREAM_END; - } - while (offset > 0) { - int size = Z_BUFSIZE; - if (offset < Z_BUFSIZE) size = (int)offset; - - size = gzread(file, s->outbuf, (uInt)size); - if (size <= 0) return -1L; - offset -= size; - } - return s->out; -} - -/* =========================================================================== - Rewinds input file. -*/ -int ZEXPORT gzrewind (file) - gzFile file; -{ - gz_stream *s = (gz_stream*)file; - - if (s == NULL || s->mode != 'r') return -1; - - s->z_err = Z_OK; - s->z_eof = 0; - s->back = EOF; - s->stream.avail_in = 0; - s->stream.next_in = s->inbuf; - s->crc = crc32(0L, Z_NULL, 0); - if (!s->transparent) (void)inflateReset(&s->stream); - s->in = 0; - s->out = 0; - return fseek(s->file, s->start, SEEK_SET); -} - -/* =========================================================================== - Returns the starting position for the next gzread or gzwrite on the - given compressed file. This position represents a number of bytes in the - uncompressed data stream. -*/ -z_off_t ZEXPORT gztell (file) - gzFile file; -{ - return gzseek(file, 0L, SEEK_CUR); -} - -/* =========================================================================== - Returns 1 when EOF has previously been detected reading the given - input stream, otherwise zero. -*/ -int ZEXPORT gzeof (file) - gzFile file; -{ - gz_stream *s = (gz_stream*)file; - - /* With concatenated compressed files that can have embedded - * crc trailers, z_eof is no longer the only/best indicator of EOF - * on a gz_stream. Handle end-of-stream error explicitly here. - */ - if (s == NULL || s->mode != 'r') return 0; - if (s->z_eof) return 1; - return s->z_err == Z_STREAM_END; -} - -/* =========================================================================== - Returns 1 if reading and doing so transparently, otherwise zero. -*/ -int ZEXPORT gzdirect (file) - gzFile file; -{ - gz_stream *s = (gz_stream*)file; - - if (s == NULL || s->mode != 'r') return 0; - return s->transparent; -} - -/* =========================================================================== - Outputs a long in LSB order to the given file -*/ -local void putLong (file, x) - FILE *file; - uLong x; -{ - int n; - for (n = 0; n < 4; n++) { - fputc((int)(x & 0xff), file); - x >>= 8; - } -} - -/* =========================================================================== - Reads a long in LSB order from the given gz_stream. Sets z_err in case - of error. -*/ -local uLong getLong (s) - gz_stream *s; -{ - uLong x = (uLong)get_byte(s); - int c; - - x += ((uLong)get_byte(s))<<8; - x += ((uLong)get_byte(s))<<16; - c = get_byte(s); - if (c == EOF) s->z_err = Z_DATA_ERROR; - x += ((uLong)c)<<24; - return x; -} - -/* =========================================================================== - Flushes all pending output if necessary, closes the compressed file - and deallocates all the (de)compression state. -*/ -int ZEXPORT gzclose (file) - gzFile file; -{ - gz_stream *s = (gz_stream*)file; - - if (s == NULL) return Z_STREAM_ERROR; - - if (s->mode == 'w') { -#ifdef NO_GZCOMPRESS - return Z_STREAM_ERROR; -#else - if (do_flush (file, Z_FINISH) != Z_OK) - return destroy((gz_stream*)file); - - putLong (s->file, s->crc); - putLong (s->file, (uLong)(s->in & 0xffffffff)); -#endif - } - return destroy((gz_stream*)file); -} - -#ifdef STDC -# define zstrerror(errnum) strerror(errnum) -#else -# define zstrerror(errnum) "" -#endif - -/* =========================================================================== - Returns the error message for the last error which occurred on the - given compressed file. errnum is set to zlib error number. If an - error occurred in the file system and not in the compression library, - errnum is set to Z_ERRNO and the application may consult errno - to get the exact error code. -*/ -const char * ZEXPORT gzerror (file, errnum) - gzFile file; - int *errnum; -{ - char *m; - gz_stream *s = (gz_stream*)file; - - if (s == NULL) { - *errnum = Z_STREAM_ERROR; - return (const char*)ERR_MSG(Z_STREAM_ERROR); - } - *errnum = s->z_err; - if (*errnum == Z_OK) return (const char*)""; - - m = (char*)(*errnum == Z_ERRNO ? zstrerror(errno) : s->stream.msg); - - if (m == NULL || *m == '\0') m = (char*)ERR_MSG(s->z_err); - - TRYFREE(s->msg); - s->msg = (char*)ALLOC(strlen(s->path) + strlen(m) + 3); - if (s->msg == Z_NULL) return (const char*)ERR_MSG(Z_MEM_ERROR); - strcpy(s->msg, s->path); - strcat(s->msg, ": "); - strcat(s->msg, m); - return (const char*)s->msg; -} - -/* =========================================================================== - Clear the error and end-of-file flags, and do the same for the real file. -*/ -void ZEXPORT gzclearerr (file) - gzFile file; -{ - gz_stream *s = (gz_stream*)file; - - if (s == NULL) return; - if (s->z_err != Z_STREAM_END) s->z_err = Z_OK; - s->z_eof = 0; - clearerr(s->file); -} diff --git a/src/3rdParty/CxImage/zlib/infback.c b/src/3rdParty/CxImage/zlib/infback.c deleted file mode 100644 index 1e03e1bab0..0000000000 --- a/src/3rdParty/CxImage/zlib/infback.c +++ /dev/null @@ -1,623 +0,0 @@ -/* infback.c -- inflate using a call-back interface - * Copyright (C) 1995-2005 Mark Adler - * For conditions of distribution and use, see copyright notice in zlib.h - */ - -/* - This code is largely copied from inflate.c. Normally either infback.o or - inflate.o would be linked into an application--not both. The interface - with inffast.c is retained so that optimized assembler-coded versions of - inflate_fast() can be used with either inflate.c or infback.c. - */ - -#include "zutil.h" -#include "inftrees.h" -#include "inflate.h" -#include "inffast.h" - -/* function prototypes */ -local void fixedtables OF((struct inflate_state FAR *state)); - -/* - strm provides memory allocation functions in zalloc and zfree, or - Z_NULL to use the library memory allocation functions. - - windowBits is in the range 8..15, and window is a user-supplied - window and output buffer that is 2**windowBits bytes. - */ -int ZEXPORT inflateBackInit_(strm, windowBits, window, version, stream_size) -z_streamp strm; -int windowBits; -unsigned char FAR *window; -const char *version; -int stream_size; -{ - struct inflate_state FAR *state; - - if (version == Z_NULL || version[0] != ZLIB_VERSION[0] || - stream_size != (int)(sizeof(z_stream))) - return Z_VERSION_ERROR; - if (strm == Z_NULL || window == Z_NULL || - windowBits < 8 || windowBits > 15) - return Z_STREAM_ERROR; - strm->msg = Z_NULL; /* in case we return an error */ - if (strm->zalloc == (alloc_func)0) { - strm->zalloc = zcalloc; - strm->opaque = (voidpf)0; - } - if (strm->zfree == (free_func)0) strm->zfree = zcfree; - state = (struct inflate_state FAR *)ZALLOC(strm, 1, - sizeof(struct inflate_state)); - if (state == Z_NULL) return Z_MEM_ERROR; - Tracev((stderr, "inflate: allocated\n")); - strm->state = (struct internal_state FAR *)state; - state->dmax = 32768U; - state->wbits = windowBits; - state->wsize = 1U << windowBits; - state->window = window; - state->write = 0; - state->whave = 0; - return Z_OK; -} - -/* - Return state with length and distance decoding tables and index sizes set to - fixed code decoding. Normally this returns fixed tables from inffixed.h. - If BUILDFIXED is defined, then instead this routine builds the tables the - first time it's called, and returns those tables the first time and - thereafter. This reduces the size of the code by about 2K bytes, in - exchange for a little execution time. However, BUILDFIXED should not be - used for threaded applications, since the rewriting of the tables and virgin - may not be thread-safe. - */ -local void fixedtables(state) -struct inflate_state FAR *state; -{ -#ifdef BUILDFIXED - static int virgin = 1; - static code *lenfix, *distfix; - static code fixed[544]; - - /* build fixed huffman tables if first call (may not be thread safe) */ - if (virgin) { - unsigned sym, bits; - static code *next; - - /* literal/length table */ - sym = 0; - while (sym < 144) state->lens[sym++] = 8; - while (sym < 256) state->lens[sym++] = 9; - while (sym < 280) state->lens[sym++] = 7; - while (sym < 288) state->lens[sym++] = 8; - next = fixed; - lenfix = next; - bits = 9; - inflate_table(LENS, state->lens, 288, &(next), &(bits), state->work); - - /* distance table */ - sym = 0; - while (sym < 32) state->lens[sym++] = 5; - distfix = next; - bits = 5; - inflate_table(DISTS, state->lens, 32, &(next), &(bits), state->work); - - /* do this just once */ - virgin = 0; - } -#else /* !BUILDFIXED */ -# include "inffixed.h" -#endif /* BUILDFIXED */ - state->lencode = lenfix; - state->lenbits = 9; - state->distcode = distfix; - state->distbits = 5; -} - -/* Macros for inflateBack(): */ - -/* Load returned state from inflate_fast() */ -#define LOAD() \ - do { \ - put = strm->next_out; \ - left = strm->avail_out; \ - next = strm->next_in; \ - have = strm->avail_in; \ - hold = state->hold; \ - bits = state->bits; \ - } while (0) - -/* Set state from registers for inflate_fast() */ -#define RESTORE() \ - do { \ - strm->next_out = put; \ - strm->avail_out = left; \ - strm->next_in = next; \ - strm->avail_in = have; \ - state->hold = hold; \ - state->bits = bits; \ - } while (0) - -/* Clear the input bit accumulator */ -#define INITBITS() \ - do { \ - hold = 0; \ - bits = 0; \ - } while (0) - -/* Assure that some input is available. If input is requested, but denied, - then return a Z_BUF_ERROR from inflateBack(). */ -#define PULL() \ - do { \ - if (have == 0) { \ - have = in(in_desc, &next); \ - if (have == 0) { \ - next = Z_NULL; \ - ret = Z_BUF_ERROR; \ - goto inf_leave; \ - } \ - } \ - } while (0) - -/* Get a byte of input into the bit accumulator, or return from inflateBack() - with an error if there is no input available. */ -#define PULLBYTE() \ - do { \ - PULL(); \ - have--; \ - hold += (unsigned long)(*next++) << bits; \ - bits += 8; \ - } while (0) - -/* Assure that there are at least n bits in the bit accumulator. If there is - not enough available input to do that, then return from inflateBack() with - an error. */ -#define NEEDBITS(n) \ - do { \ - while (bits < (unsigned)(n)) \ - PULLBYTE(); \ - } while (0) - -/* Return the low n bits of the bit accumulator (n < 16) */ -#define BITS(n) \ - ((unsigned)hold & ((1U << (n)) - 1)) - -/* Remove n bits from the bit accumulator */ -#define DROPBITS(n) \ - do { \ - hold >>= (n); \ - bits -= (unsigned)(n); \ - } while (0) - -/* Remove zero to seven bits as needed to go to a byte boundary */ -#define BYTEBITS() \ - do { \ - hold >>= bits & 7; \ - bits -= bits & 7; \ - } while (0) - -/* Assure that some output space is available, by writing out the window - if it's full. If the write fails, return from inflateBack() with a - Z_BUF_ERROR. */ -#define ROOM() \ - do { \ - if (left == 0) { \ - put = state->window; \ - left = state->wsize; \ - state->whave = left; \ - if (out(out_desc, put, left)) { \ - ret = Z_BUF_ERROR; \ - goto inf_leave; \ - } \ - } \ - } while (0) - -/* - strm provides the memory allocation functions and window buffer on input, - and provides information on the unused input on return. For Z_DATA_ERROR - returns, strm will also provide an error message. - - in() and out() are the call-back input and output functions. When - inflateBack() needs more input, it calls in(). When inflateBack() has - filled the window with output, or when it completes with data in the - window, it calls out() to write out the data. The application must not - change the provided input until in() is called again or inflateBack() - returns. The application must not change the window/output buffer until - inflateBack() returns. - - in() and out() are called with a descriptor parameter provided in the - inflateBack() call. This parameter can be a structure that provides the - information required to do the read or write, as well as accumulated - information on the input and output such as totals and check values. - - in() should return zero on failure. out() should return non-zero on - failure. If either in() or out() fails, than inflateBack() returns a - Z_BUF_ERROR. strm->next_in can be checked for Z_NULL to see whether it - was in() or out() that caused in the error. Otherwise, inflateBack() - returns Z_STREAM_END on success, Z_DATA_ERROR for an deflate format - error, or Z_MEM_ERROR if it could not allocate memory for the state. - inflateBack() can also return Z_STREAM_ERROR if the input parameters - are not correct, i.e. strm is Z_NULL or the state was not initialized. - */ -int ZEXPORT inflateBack(strm, in, in_desc, out, out_desc) -z_streamp strm; -in_func in; -void FAR *in_desc; -out_func out; -void FAR *out_desc; -{ - struct inflate_state FAR *state; - unsigned char FAR *next; /* next input */ - unsigned char FAR *put; /* next output */ - unsigned have, left; /* available input and output */ - unsigned long hold; /* bit buffer */ - unsigned bits; /* bits in bit buffer */ - unsigned copy; /* number of stored or match bytes to copy */ - unsigned char FAR *from; /* where to copy match bytes from */ - code this; /* current decoding table entry */ - code last; /* parent table entry */ - unsigned len; /* length to copy for repeats, bits to drop */ - int ret; /* return code */ - static const unsigned short order[19] = /* permutation of code lengths */ - {16, 17, 18, 0, 8, 7, 9, 6, 10, 5, 11, 4, 12, 3, 13, 2, 14, 1, 15}; - - /* Check that the strm exists and that the state was initialized */ - if (strm == Z_NULL || strm->state == Z_NULL) - return Z_STREAM_ERROR; - state = (struct inflate_state FAR *)strm->state; - - /* Reset the state */ - strm->msg = Z_NULL; - state->mode = TYPE; - state->last = 0; - state->whave = 0; - next = strm->next_in; - have = next != Z_NULL ? strm->avail_in : 0; - hold = 0; - bits = 0; - put = state->window; - left = state->wsize; - - /* Inflate until end of block marked as last */ - for (;;) - switch (state->mode) { - case TYPE: - /* determine and dispatch block type */ - if (state->last) { - BYTEBITS(); - state->mode = DONE; - break; - } - NEEDBITS(3); - state->last = BITS(1); - DROPBITS(1); - switch (BITS(2)) { - case 0: /* stored block */ - Tracev((stderr, "inflate: stored block%s\n", - state->last ? " (last)" : "")); - state->mode = STORED; - break; - case 1: /* fixed block */ - fixedtables(state); - Tracev((stderr, "inflate: fixed codes block%s\n", - state->last ? " (last)" : "")); - state->mode = LEN; /* decode codes */ - break; - case 2: /* dynamic block */ - Tracev((stderr, "inflate: dynamic codes block%s\n", - state->last ? " (last)" : "")); - state->mode = TABLE; - break; - case 3: - strm->msg = (char *)"invalid block type"; - state->mode = BAD; - } - DROPBITS(2); - break; - - case STORED: - /* get and verify stored block length */ - BYTEBITS(); /* go to byte boundary */ - NEEDBITS(32); - if ((hold & 0xffff) != ((hold >> 16) ^ 0xffff)) { - strm->msg = (char *)"invalid stored block lengths"; - state->mode = BAD; - break; - } - state->length = (unsigned)hold & 0xffff; - Tracev((stderr, "inflate: stored length %u\n", - state->length)); - INITBITS(); - - /* copy stored block from input to output */ - while (state->length != 0) { - copy = state->length; - PULL(); - ROOM(); - if (copy > have) copy = have; - if (copy > left) copy = left; - zmemcpy(put, next, copy); - have -= copy; - next += copy; - left -= copy; - put += copy; - state->length -= copy; - } - Tracev((stderr, "inflate: stored end\n")); - state->mode = TYPE; - break; - - case TABLE: - /* get dynamic table entries descriptor */ - NEEDBITS(14); - state->nlen = BITS(5) + 257; - DROPBITS(5); - state->ndist = BITS(5) + 1; - DROPBITS(5); - state->ncode = BITS(4) + 4; - DROPBITS(4); -#ifndef PKZIP_BUG_WORKAROUND - if (state->nlen > 286 || state->ndist > 30) { - strm->msg = (char *)"too many length or distance symbols"; - state->mode = BAD; - break; - } -#endif - Tracev((stderr, "inflate: table sizes ok\n")); - - /* get code length code lengths (not a typo) */ - state->have = 0; - while (state->have < state->ncode) { - NEEDBITS(3); - state->lens[order[state->have++]] = (unsigned short)BITS(3); - DROPBITS(3); - } - while (state->have < 19) - state->lens[order[state->have++]] = 0; - state->next = state->codes; - state->lencode = (code const FAR *)(state->next); - state->lenbits = 7; - ret = inflate_table(CODES, state->lens, 19, &(state->next), - &(state->lenbits), state->work); - if (ret) { - strm->msg = (char *)"invalid code lengths set"; - state->mode = BAD; - break; - } - Tracev((stderr, "inflate: code lengths ok\n")); - - /* get length and distance code code lengths */ - state->have = 0; - while (state->have < state->nlen + state->ndist) { - for (;;) { - this = state->lencode[BITS(state->lenbits)]; - if ((unsigned)(this.bits) <= bits) break; - PULLBYTE(); - } - if (this.val < 16) { - NEEDBITS(this.bits); - DROPBITS(this.bits); - state->lens[state->have++] = this.val; - } - else { - if (this.val == 16) { - NEEDBITS(this.bits + 2); - DROPBITS(this.bits); - if (state->have == 0) { - strm->msg = (char *)"invalid bit length repeat"; - state->mode = BAD; - break; - } - len = (unsigned)(state->lens[state->have - 1]); - copy = 3 + BITS(2); - DROPBITS(2); - } - else if (this.val == 17) { - NEEDBITS(this.bits + 3); - DROPBITS(this.bits); - len = 0; - copy = 3 + BITS(3); - DROPBITS(3); - } - else { - NEEDBITS(this.bits + 7); - DROPBITS(this.bits); - len = 0; - copy = 11 + BITS(7); - DROPBITS(7); - } - if (state->have + copy > state->nlen + state->ndist) { - strm->msg = (char *)"invalid bit length repeat"; - state->mode = BAD; - break; - } - while (copy--) - state->lens[state->have++] = (unsigned short)len; - } - } - - /* handle error breaks in while */ - if (state->mode == BAD) break; - - /* build code tables */ - state->next = state->codes; - state->lencode = (code const FAR *)(state->next); - state->lenbits = 9; - ret = inflate_table(LENS, state->lens, state->nlen, &(state->next), - &(state->lenbits), state->work); - if (ret) { - strm->msg = (char *)"invalid literal/lengths set"; - state->mode = BAD; - break; - } - state->distcode = (code const FAR *)(state->next); - state->distbits = 6; - ret = inflate_table(DISTS, state->lens + state->nlen, state->ndist, - &(state->next), &(state->distbits), state->work); - if (ret) { - strm->msg = (char *)"invalid distances set"; - state->mode = BAD; - break; - } - Tracev((stderr, "inflate: codes ok\n")); - state->mode = LEN; - - case LEN: - /* use inflate_fast() if we have enough input and output */ - if (have >= 6 && left >= 258) { - RESTORE(); - if (state->whave < state->wsize) - state->whave = state->wsize - left; - inflate_fast(strm, state->wsize); - LOAD(); - break; - } - - /* get a literal, length, or end-of-block code */ - for (;;) { - this = state->lencode[BITS(state->lenbits)]; - if ((unsigned)(this.bits) <= bits) break; - PULLBYTE(); - } - if (this.op && (this.op & 0xf0) == 0) { - last = this; - for (;;) { - this = state->lencode[last.val + - (BITS(last.bits + last.op) >> last.bits)]; - if ((unsigned)(last.bits + this.bits) <= bits) break; - PULLBYTE(); - } - DROPBITS(last.bits); - } - DROPBITS(this.bits); - state->length = (unsigned)this.val; - - /* process literal */ - if (this.op == 0) { - Tracevv((stderr, this.val >= 0x20 && this.val < 0x7f ? - "inflate: literal '%c'\n" : - "inflate: literal 0x%02x\n", this.val)); - ROOM(); - *put++ = (unsigned char)(state->length); - left--; - state->mode = LEN; - break; - } - - /* process end of block */ - if (this.op & 32) { - Tracevv((stderr, "inflate: end of block\n")); - state->mode = TYPE; - break; - } - - /* invalid code */ - if (this.op & 64) { - strm->msg = (char *)"invalid literal/length code"; - state->mode = BAD; - break; - } - - /* length code -- get extra bits, if any */ - state->extra = (unsigned)(this.op) & 15; - if (state->extra != 0) { - NEEDBITS(state->extra); - state->length += BITS(state->extra); - DROPBITS(state->extra); - } - Tracevv((stderr, "inflate: length %u\n", state->length)); - - /* get distance code */ - for (;;) { - this = state->distcode[BITS(state->distbits)]; - if ((unsigned)(this.bits) <= bits) break; - PULLBYTE(); - } - if ((this.op & 0xf0) == 0) { - last = this; - for (;;) { - this = state->distcode[last.val + - (BITS(last.bits + last.op) >> last.bits)]; - if ((unsigned)(last.bits + this.bits) <= bits) break; - PULLBYTE(); - } - DROPBITS(last.bits); - } - DROPBITS(this.bits); - if (this.op & 64) { - strm->msg = (char *)"invalid distance code"; - state->mode = BAD; - break; - } - state->offset = (unsigned)this.val; - - /* get distance extra bits, if any */ - state->extra = (unsigned)(this.op) & 15; - if (state->extra != 0) { - NEEDBITS(state->extra); - state->offset += BITS(state->extra); - DROPBITS(state->extra); - } - if (state->offset > state->wsize - (state->whave < state->wsize ? - left : 0)) { - strm->msg = (char *)"invalid distance too far back"; - state->mode = BAD; - break; - } - Tracevv((stderr, "inflate: distance %u\n", state->offset)); - - /* copy match from window to output */ - do { - ROOM(); - copy = state->wsize - state->offset; - if (copy < left) { - from = put + copy; - copy = left - copy; - } - else { - from = put - state->offset; - copy = left; - } - if (copy > state->length) copy = state->length; - state->length -= copy; - left -= copy; - do { - *put++ = *from++; - } while (--copy); - } while (state->length != 0); - break; - - case DONE: - /* inflate stream terminated properly -- write leftover output */ - ret = Z_STREAM_END; - if (left < state->wsize) { - if (out(out_desc, state->window, state->wsize - left)) - ret = Z_BUF_ERROR; - } - goto inf_leave; - - case BAD: - ret = Z_DATA_ERROR; - goto inf_leave; - - default: /* can't happen, but makes compilers happy */ - ret = Z_STREAM_ERROR; - goto inf_leave; - } - - /* Return unused input */ - inf_leave: - strm->next_in = next; - strm->avail_in = have; - return ret; -} - -int ZEXPORT inflateBackEnd(strm) -z_streamp strm; -{ - if (strm == Z_NULL || strm->state == Z_NULL || strm->zfree == (free_func)0) - return Z_STREAM_ERROR; - ZFREE(strm, strm->state); - strm->state = Z_NULL; - Tracev((stderr, "inflate: end\n")); - return Z_OK; -} diff --git a/src/3rdParty/CxImage/zlib/inffast.c b/src/3rdParty/CxImage/zlib/inffast.c deleted file mode 100644 index fa31cad905..0000000000 --- a/src/3rdParty/CxImage/zlib/inffast.c +++ /dev/null @@ -1,318 +0,0 @@ -/* inffast.c -- fast decoding - * Copyright (C) 1995-2004 Mark Adler - * For conditions of distribution and use, see copyright notice in zlib.h - */ - -#include "zutil.h" -#include "inftrees.h" -#include "inflate.h" -#include "inffast.h" - -#ifndef ASMINF - -/* Allow machine dependent optimization for post-increment or pre-increment. - Based on testing to date, - Pre-increment preferred for: - - PowerPC G3 (Adler) - - MIPS R5000 (Randers-Pehrson) - Post-increment preferred for: - - none - No measurable difference: - - Pentium III (Anderson) - - M68060 (Nikl) - */ -#ifdef POSTINC -# define OFF 0 -# define PUP(a) *(a)++ -#else -# define OFF 1 -# define PUP(a) *++(a) -#endif - -/* - Decode literal, length, and distance codes and write out the resulting - literal and match bytes until either not enough input or output is - available, an end-of-block is encountered, or a data error is encountered. - When large enough input and output buffers are supplied to inflate(), for - example, a 16K input buffer and a 64K output buffer, more than 95% of the - inflate execution time is spent in this routine. - - Entry assumptions: - - state->mode == LEN - strm->avail_in >= 6 - strm->avail_out >= 258 - start >= strm->avail_out - state->bits < 8 - - On return, state->mode is one of: - - LEN -- ran out of enough output space or enough available input - TYPE -- reached end of block code, inflate() to interpret next block - BAD -- error in block data - - Notes: - - - The maximum input bits used by a length/distance pair is 15 bits for the - length code, 5 bits for the length extra, 15 bits for the distance code, - and 13 bits for the distance extra. This totals 48 bits, or six bytes. - Therefore if strm->avail_in >= 6, then there is enough input to avoid - checking for available input while decoding. - - - The maximum bytes that a single length/distance pair can output is 258 - bytes, which is the maximum length that can be coded. inflate_fast() - requires strm->avail_out >= 258 for each loop to avoid checking for - output space. - */ -void inflate_fast(strm, start) -z_streamp strm; -unsigned start; /* inflate()'s starting value for strm->avail_out */ -{ - struct inflate_state FAR *state; - unsigned char FAR *in; /* local strm->next_in */ - unsigned char FAR *last; /* while in < last, enough input available */ - unsigned char FAR *out; /* local strm->next_out */ - unsigned char FAR *beg; /* inflate()'s initial strm->next_out */ - unsigned char FAR *end; /* while out < end, enough space available */ -#ifdef INFLATE_STRICT - unsigned dmax; /* maximum distance from zlib header */ -#endif - unsigned wsize; /* window size or zero if not using window */ - unsigned whave; /* valid bytes in the window */ - unsigned write; /* window write index */ - unsigned char FAR *window; /* allocated sliding window, if wsize != 0 */ - unsigned long hold; /* local strm->hold */ - unsigned bits; /* local strm->bits */ - code const FAR *lcode; /* local strm->lencode */ - code const FAR *dcode; /* local strm->distcode */ - unsigned lmask; /* mask for first level of length codes */ - unsigned dmask; /* mask for first level of distance codes */ - code this; /* retrieved table entry */ - unsigned op; /* code bits, operation, extra bits, or */ - /* window position, window bytes to copy */ - unsigned len; /* match length, unused bytes */ - unsigned dist; /* match distance */ - unsigned char FAR *from; /* where to copy match from */ - - /* copy state to local variables */ - state = (struct inflate_state FAR *)strm->state; - in = strm->next_in - OFF; - last = in + (strm->avail_in - 5); - out = strm->next_out - OFF; - beg = out - (start - strm->avail_out); - end = out + (strm->avail_out - 257); -#ifdef INFLATE_STRICT - dmax = state->dmax; -#endif - wsize = state->wsize; - whave = state->whave; - write = state->write; - window = state->window; - hold = state->hold; - bits = state->bits; - lcode = state->lencode; - dcode = state->distcode; - lmask = (1U << state->lenbits) - 1; - dmask = (1U << state->distbits) - 1; - - /* decode literals and length/distances until end-of-block or not enough - input data or output space */ - do { - if (bits < 15) { - hold += (unsigned long)(PUP(in)) << bits; - bits += 8; - hold += (unsigned long)(PUP(in)) << bits; - bits += 8; - } - this = lcode[hold & lmask]; - dolen: - op = (unsigned)(this.bits); - hold >>= op; - bits -= op; - op = (unsigned)(this.op); - if (op == 0) { /* literal */ - Tracevv((stderr, this.val >= 0x20 && this.val < 0x7f ? - "inflate: literal '%c'\n" : - "inflate: literal 0x%02x\n", this.val)); - PUP(out) = (unsigned char)(this.val); - } - else if (op & 16) { /* length base */ - len = (unsigned)(this.val); - op &= 15; /* number of extra bits */ - if (op) { - if (bits < op) { - hold += (unsigned long)(PUP(in)) << bits; - bits += 8; - } - len += (unsigned)hold & ((1U << op) - 1); - hold >>= op; - bits -= op; - } - Tracevv((stderr, "inflate: length %u\n", len)); - if (bits < 15) { - hold += (unsigned long)(PUP(in)) << bits; - bits += 8; - hold += (unsigned long)(PUP(in)) << bits; - bits += 8; - } - this = dcode[hold & dmask]; - dodist: - op = (unsigned)(this.bits); - hold >>= op; - bits -= op; - op = (unsigned)(this.op); - if (op & 16) { /* distance base */ - dist = (unsigned)(this.val); - op &= 15; /* number of extra bits */ - if (bits < op) { - hold += (unsigned long)(PUP(in)) << bits; - bits += 8; - if (bits < op) { - hold += (unsigned long)(PUP(in)) << bits; - bits += 8; - } - } - dist += (unsigned)hold & ((1U << op) - 1); -#ifdef INFLATE_STRICT - if (dist > dmax) { - strm->msg = (char *)"invalid distance too far back"; - state->mode = BAD; - break; - } -#endif - hold >>= op; - bits -= op; - Tracevv((stderr, "inflate: distance %u\n", dist)); - op = (unsigned)(out - beg); /* max distance in output */ - if (dist > op) { /* see if copy from window */ - op = dist - op; /* distance back in window */ - if (op > whave) { - strm->msg = (char *)"invalid distance too far back"; - state->mode = BAD; - break; - } - from = window - OFF; - if (write == 0) { /* very common case */ - from += wsize - op; - if (op < len) { /* some from window */ - len -= op; - do { - PUP(out) = PUP(from); - } while (--op); - from = out - dist; /* rest from output */ - } - } - else if (write < op) { /* wrap around window */ - from += wsize + write - op; - op -= write; - if (op < len) { /* some from end of window */ - len -= op; - do { - PUP(out) = PUP(from); - } while (--op); - from = window - OFF; - if (write < len) { /* some from start of window */ - op = write; - len -= op; - do { - PUP(out) = PUP(from); - } while (--op); - from = out - dist; /* rest from output */ - } - } - } - else { /* contiguous in window */ - from += write - op; - if (op < len) { /* some from window */ - len -= op; - do { - PUP(out) = PUP(from); - } while (--op); - from = out - dist; /* rest from output */ - } - } - while (len > 2) { - PUP(out) = PUP(from); - PUP(out) = PUP(from); - PUP(out) = PUP(from); - len -= 3; - } - if (len) { - PUP(out) = PUP(from); - if (len > 1) - PUP(out) = PUP(from); - } - } - else { - from = out - dist; /* copy direct from output */ - do { /* minimum length is three */ - PUP(out) = PUP(from); - PUP(out) = PUP(from); - PUP(out) = PUP(from); - len -= 3; - } while (len > 2); - if (len) { - PUP(out) = PUP(from); - if (len > 1) - PUP(out) = PUP(from); - } - } - } - else if ((op & 64) == 0) { /* 2nd level distance code */ - this = dcode[this.val + (hold & ((1U << op) - 1))]; - goto dodist; - } - else { - strm->msg = (char *)"invalid distance code"; - state->mode = BAD; - break; - } - } - else if ((op & 64) == 0) { /* 2nd level length code */ - this = lcode[this.val + (hold & ((1U << op) - 1))]; - goto dolen; - } - else if (op & 32) { /* end-of-block */ - Tracevv((stderr, "inflate: end of block\n")); - state->mode = TYPE; - break; - } - else { - strm->msg = (char *)"invalid literal/length code"; - state->mode = BAD; - break; - } - } while (in < last && out < end); - - /* return unused bytes (on entry, bits < 8, so in won't go too far back) */ - len = bits >> 3; - in -= len; - bits -= len << 3; - hold &= (1U << bits) - 1; - - /* update state and return */ - strm->next_in = in + OFF; - strm->next_out = out + OFF; - strm->avail_in = (unsigned)(in < last ? 5 + (last - in) : 5 - (in - last)); - strm->avail_out = (unsigned)(out < end ? - 257 + (end - out) : 257 - (out - end)); - state->hold = hold; - state->bits = bits; - return; -} - -/* - inflate_fast() speedups that turned out slower (on a PowerPC G3 750CXe): - - Using bit fields for code structure - - Different op definition to avoid & for extra bits (do & for table bits) - - Three separate decoding do-loops for direct, window, and write == 0 - - Special case for distance > 1 copies to do overlapped load and store copy - - Explicit branch predictions (based on measured branch probabilities) - - Deferring match copy and interspersed it with decoding subsequent codes - - Swapping literal/length else - - Swapping window/direct else - - Larger unrolled copy loops (three is about right) - - Moving len -= 3 statement into middle of loop - */ - -#endif /* !ASMINF */ diff --git a/src/3rdParty/CxImage/zlib/inffast.h b/src/3rdParty/CxImage/zlib/inffast.h deleted file mode 100644 index 614fa7877d..0000000000 --- a/src/3rdParty/CxImage/zlib/inffast.h +++ /dev/null @@ -1,11 +0,0 @@ -/* inffast.h -- header to use inffast.c - * Copyright (C) 1995-2003 Mark Adler - * For conditions of distribution and use, see copyright notice in zlib.h - */ - -/* WARNING: this file should *not* be used by applications. It is - part of the implementation of the compression library and is - subject to change. Applications should only use zlib.h. - */ - -void inflate_fast OF((z_streamp strm, unsigned start)); diff --git a/src/3rdParty/CxImage/zlib/inffixed.h b/src/3rdParty/CxImage/zlib/inffixed.h deleted file mode 100644 index 423d5c5b50..0000000000 --- a/src/3rdParty/CxImage/zlib/inffixed.h +++ /dev/null @@ -1,94 +0,0 @@ - /* inffixed.h -- table for decoding fixed codes - * Generated automatically by makefixed(). - */ - - /* WARNING: this file should *not* be used by applications. It - is part of the implementation of the compression library and - is subject to change. Applications should only use zlib.h. - */ - - static const code lenfix[512] = { - {96,7,0},{0,8,80},{0,8,16},{20,8,115},{18,7,31},{0,8,112},{0,8,48}, - {0,9,192},{16,7,10},{0,8,96},{0,8,32},{0,9,160},{0,8,0},{0,8,128}, - {0,8,64},{0,9,224},{16,7,6},{0,8,88},{0,8,24},{0,9,144},{19,7,59}, - {0,8,120},{0,8,56},{0,9,208},{17,7,17},{0,8,104},{0,8,40},{0,9,176}, - {0,8,8},{0,8,136},{0,8,72},{0,9,240},{16,7,4},{0,8,84},{0,8,20}, - {21,8,227},{19,7,43},{0,8,116},{0,8,52},{0,9,200},{17,7,13},{0,8,100}, - {0,8,36},{0,9,168},{0,8,4},{0,8,132},{0,8,68},{0,9,232},{16,7,8}, - {0,8,92},{0,8,28},{0,9,152},{20,7,83},{0,8,124},{0,8,60},{0,9,216}, - {18,7,23},{0,8,108},{0,8,44},{0,9,184},{0,8,12},{0,8,140},{0,8,76}, - {0,9,248},{16,7,3},{0,8,82},{0,8,18},{21,8,163},{19,7,35},{0,8,114}, - {0,8,50},{0,9,196},{17,7,11},{0,8,98},{0,8,34},{0,9,164},{0,8,2}, - {0,8,130},{0,8,66},{0,9,228},{16,7,7},{0,8,90},{0,8,26},{0,9,148}, - {20,7,67},{0,8,122},{0,8,58},{0,9,212},{18,7,19},{0,8,106},{0,8,42}, - {0,9,180},{0,8,10},{0,8,138},{0,8,74},{0,9,244},{16,7,5},{0,8,86}, - {0,8,22},{64,8,0},{19,7,51},{0,8,118},{0,8,54},{0,9,204},{17,7,15}, - {0,8,102},{0,8,38},{0,9,172},{0,8,6},{0,8,134},{0,8,70},{0,9,236}, - {16,7,9},{0,8,94},{0,8,30},{0,9,156},{20,7,99},{0,8,126},{0,8,62}, - {0,9,220},{18,7,27},{0,8,110},{0,8,46},{0,9,188},{0,8,14},{0,8,142}, - {0,8,78},{0,9,252},{96,7,0},{0,8,81},{0,8,17},{21,8,131},{18,7,31}, - {0,8,113},{0,8,49},{0,9,194},{16,7,10},{0,8,97},{0,8,33},{0,9,162}, - {0,8,1},{0,8,129},{0,8,65},{0,9,226},{16,7,6},{0,8,89},{0,8,25}, - {0,9,146},{19,7,59},{0,8,121},{0,8,57},{0,9,210},{17,7,17},{0,8,105}, - {0,8,41},{0,9,178},{0,8,9},{0,8,137},{0,8,73},{0,9,242},{16,7,4}, - {0,8,85},{0,8,21},{16,8,258},{19,7,43},{0,8,117},{0,8,53},{0,9,202}, - {17,7,13},{0,8,101},{0,8,37},{0,9,170},{0,8,5},{0,8,133},{0,8,69}, - {0,9,234},{16,7,8},{0,8,93},{0,8,29},{0,9,154},{20,7,83},{0,8,125}, - {0,8,61},{0,9,218},{18,7,23},{0,8,109},{0,8,45},{0,9,186},{0,8,13}, - {0,8,141},{0,8,77},{0,9,250},{16,7,3},{0,8,83},{0,8,19},{21,8,195}, - {19,7,35},{0,8,115},{0,8,51},{0,9,198},{17,7,11},{0,8,99},{0,8,35}, - {0,9,166},{0,8,3},{0,8,131},{0,8,67},{0,9,230},{16,7,7},{0,8,91}, - {0,8,27},{0,9,150},{20,7,67},{0,8,123},{0,8,59},{0,9,214},{18,7,19}, - {0,8,107},{0,8,43},{0,9,182},{0,8,11},{0,8,139},{0,8,75},{0,9,246}, - {16,7,5},{0,8,87},{0,8,23},{64,8,0},{19,7,51},{0,8,119},{0,8,55}, - {0,9,206},{17,7,15},{0,8,103},{0,8,39},{0,9,174},{0,8,7},{0,8,135}, - {0,8,71},{0,9,238},{16,7,9},{0,8,95},{0,8,31},{0,9,158},{20,7,99}, - {0,8,127},{0,8,63},{0,9,222},{18,7,27},{0,8,111},{0,8,47},{0,9,190}, - {0,8,15},{0,8,143},{0,8,79},{0,9,254},{96,7,0},{0,8,80},{0,8,16}, - {20,8,115},{18,7,31},{0,8,112},{0,8,48},{0,9,193},{16,7,10},{0,8,96}, - {0,8,32},{0,9,161},{0,8,0},{0,8,128},{0,8,64},{0,9,225},{16,7,6}, - {0,8,88},{0,8,24},{0,9,145},{19,7,59},{0,8,120},{0,8,56},{0,9,209}, - {17,7,17},{0,8,104},{0,8,40},{0,9,177},{0,8,8},{0,8,136},{0,8,72}, - {0,9,241},{16,7,4},{0,8,84},{0,8,20},{21,8,227},{19,7,43},{0,8,116}, - {0,8,52},{0,9,201},{17,7,13},{0,8,100},{0,8,36},{0,9,169},{0,8,4}, - {0,8,132},{0,8,68},{0,9,233},{16,7,8},{0,8,92},{0,8,28},{0,9,153}, - {20,7,83},{0,8,124},{0,8,60},{0,9,217},{18,7,23},{0,8,108},{0,8,44}, - {0,9,185},{0,8,12},{0,8,140},{0,8,76},{0,9,249},{16,7,3},{0,8,82}, - {0,8,18},{21,8,163},{19,7,35},{0,8,114},{0,8,50},{0,9,197},{17,7,11}, - {0,8,98},{0,8,34},{0,9,165},{0,8,2},{0,8,130},{0,8,66},{0,9,229}, - {16,7,7},{0,8,90},{0,8,26},{0,9,149},{20,7,67},{0,8,122},{0,8,58}, - {0,9,213},{18,7,19},{0,8,106},{0,8,42},{0,9,181},{0,8,10},{0,8,138}, - {0,8,74},{0,9,245},{16,7,5},{0,8,86},{0,8,22},{64,8,0},{19,7,51}, - {0,8,118},{0,8,54},{0,9,205},{17,7,15},{0,8,102},{0,8,38},{0,9,173}, - {0,8,6},{0,8,134},{0,8,70},{0,9,237},{16,7,9},{0,8,94},{0,8,30}, - {0,9,157},{20,7,99},{0,8,126},{0,8,62},{0,9,221},{18,7,27},{0,8,110}, - {0,8,46},{0,9,189},{0,8,14},{0,8,142},{0,8,78},{0,9,253},{96,7,0}, - {0,8,81},{0,8,17},{21,8,131},{18,7,31},{0,8,113},{0,8,49},{0,9,195}, - {16,7,10},{0,8,97},{0,8,33},{0,9,163},{0,8,1},{0,8,129},{0,8,65}, - {0,9,227},{16,7,6},{0,8,89},{0,8,25},{0,9,147},{19,7,59},{0,8,121}, - {0,8,57},{0,9,211},{17,7,17},{0,8,105},{0,8,41},{0,9,179},{0,8,9}, - {0,8,137},{0,8,73},{0,9,243},{16,7,4},{0,8,85},{0,8,21},{16,8,258}, - {19,7,43},{0,8,117},{0,8,53},{0,9,203},{17,7,13},{0,8,101},{0,8,37}, - {0,9,171},{0,8,5},{0,8,133},{0,8,69},{0,9,235},{16,7,8},{0,8,93}, - {0,8,29},{0,9,155},{20,7,83},{0,8,125},{0,8,61},{0,9,219},{18,7,23}, - {0,8,109},{0,8,45},{0,9,187},{0,8,13},{0,8,141},{0,8,77},{0,9,251}, - {16,7,3},{0,8,83},{0,8,19},{21,8,195},{19,7,35},{0,8,115},{0,8,51}, - {0,9,199},{17,7,11},{0,8,99},{0,8,35},{0,9,167},{0,8,3},{0,8,131}, - {0,8,67},{0,9,231},{16,7,7},{0,8,91},{0,8,27},{0,9,151},{20,7,67}, - {0,8,123},{0,8,59},{0,9,215},{18,7,19},{0,8,107},{0,8,43},{0,9,183}, - {0,8,11},{0,8,139},{0,8,75},{0,9,247},{16,7,5},{0,8,87},{0,8,23}, - {64,8,0},{19,7,51},{0,8,119},{0,8,55},{0,9,207},{17,7,15},{0,8,103}, - {0,8,39},{0,9,175},{0,8,7},{0,8,135},{0,8,71},{0,9,239},{16,7,9}, - {0,8,95},{0,8,31},{0,9,159},{20,7,99},{0,8,127},{0,8,63},{0,9,223}, - {18,7,27},{0,8,111},{0,8,47},{0,9,191},{0,8,15},{0,8,143},{0,8,79}, - {0,9,255} - }; - - static const code distfix[32] = { - {16,5,1},{23,5,257},{19,5,17},{27,5,4097},{17,5,5},{25,5,1025}, - {21,5,65},{29,5,16385},{16,5,3},{24,5,513},{20,5,33},{28,5,8193}, - {18,5,9},{26,5,2049},{22,5,129},{64,5,0},{16,5,2},{23,5,385}, - {19,5,25},{27,5,6145},{17,5,7},{25,5,1537},{21,5,97},{29,5,24577}, - {16,5,4},{24,5,769},{20,5,49},{28,5,12289},{18,5,13},{26,5,3073}, - {22,5,193},{64,5,0} - }; diff --git a/src/3rdParty/CxImage/zlib/inflate.c b/src/3rdParty/CxImage/zlib/inflate.c deleted file mode 100644 index 33ea902928..0000000000 --- a/src/3rdParty/CxImage/zlib/inflate.c +++ /dev/null @@ -1,1368 +0,0 @@ -/* inflate.c -- zlib decompression - * Copyright (C) 1995-2005 Mark Adler - * For conditions of distribution and use, see copyright notice in zlib.h - */ - -/* - * Change history: - * - * 1.2.beta0 24 Nov 2002 - * - First version -- complete rewrite of inflate to simplify code, avoid - * creation of window when not needed, minimize use of window when it is - * needed, make inffast.c even faster, implement gzip decoding, and to - * improve code readability and style over the previous zlib inflate code - * - * 1.2.beta1 25 Nov 2002 - * - Use pointers for available input and output checking in inffast.c - * - Remove input and output counters in inffast.c - * - Change inffast.c entry and loop from avail_in >= 7 to >= 6 - * - Remove unnecessary second byte pull from length extra in inffast.c - * - Unroll direct copy to three copies per loop in inffast.c - * - * 1.2.beta2 4 Dec 2002 - * - Change external routine names to reduce potential conflicts - * - Correct filename to inffixed.h for fixed tables in inflate.c - * - Make hbuf[] unsigned char to match parameter type in inflate.c - * - Change strm->next_out[-state->offset] to *(strm->next_out - state->offset) - * to avoid negation problem on Alphas (64 bit) in inflate.c - * - * 1.2.beta3 22 Dec 2002 - * - Add comments on state->bits assertion in inffast.c - * - Add comments on op field in inftrees.h - * - Fix bug in reuse of allocated window after inflateReset() - * - Remove bit fields--back to byte structure for speed - * - Remove distance extra == 0 check in inflate_fast()--only helps for lengths - * - Change post-increments to pre-increments in inflate_fast(), PPC biased? - * - Add compile time option, POSTINC, to use post-increments instead (Intel?) - * - Make MATCH copy in inflate() much faster for when inflate_fast() not used - * - Use local copies of stream next and avail values, as well as local bit - * buffer and bit count in inflate()--for speed when inflate_fast() not used - * - * 1.2.beta4 1 Jan 2003 - * - Split ptr - 257 statements in inflate_table() to avoid compiler warnings - * - Move a comment on output buffer sizes from inffast.c to inflate.c - * - Add comments in inffast.c to introduce the inflate_fast() routine - * - Rearrange window copies in inflate_fast() for speed and simplification - * - Unroll last copy for window match in inflate_fast() - * - Use local copies of window variables in inflate_fast() for speed - * - Pull out common write == 0 case for speed in inflate_fast() - * - Make op and len in inflate_fast() unsigned for consistency - * - Add FAR to lcode and dcode declarations in inflate_fast() - * - Simplified bad distance check in inflate_fast() - * - Added inflateBackInit(), inflateBack(), and inflateBackEnd() in new - * source file infback.c to provide a call-back interface to inflate for - * programs like gzip and unzip -- uses window as output buffer to avoid - * window copying - * - * 1.2.beta5 1 Jan 2003 - * - Improved inflateBack() interface to allow the caller to provide initial - * input in strm. - * - Fixed stored blocks bug in inflateBack() - * - * 1.2.beta6 4 Jan 2003 - * - Added comments in inffast.c on effectiveness of POSTINC - * - Typecasting all around to reduce compiler warnings - * - Changed loops from while (1) or do {} while (1) to for (;;), again to - * make compilers happy - * - Changed type of window in inflateBackInit() to unsigned char * - * - * 1.2.beta7 27 Jan 2003 - * - Changed many types to unsigned or unsigned short to avoid warnings - * - Added inflateCopy() function - * - * 1.2.0 9 Mar 2003 - * - Changed inflateBack() interface to provide separate opaque descriptors - * for the in() and out() functions - * - Changed inflateBack() argument and in_func typedef to swap the length - * and buffer address return values for the input function - * - Check next_in and next_out for Z_NULL on entry to inflate() - * - * The history for versions after 1.2.0 are in ChangeLog in zlib distribution. - */ - -#include "zutil.h" -#include "inftrees.h" -#include "inflate.h" -#include "inffast.h" - -#ifdef MAKEFIXED -# ifndef BUILDFIXED -# define BUILDFIXED -# endif -#endif - -/* function prototypes */ -local void fixedtables OF((struct inflate_state FAR *state)); -local int updatewindow OF((z_streamp strm, unsigned out)); -#ifdef BUILDFIXED - void makefixed OF((void)); -#endif -local unsigned syncsearch OF((unsigned FAR *have, unsigned char FAR *buf, - unsigned len)); - -int ZEXPORT inflateReset(strm) -z_streamp strm; -{ - struct inflate_state FAR *state; - - if (strm == Z_NULL || strm->state == Z_NULL) return Z_STREAM_ERROR; - state = (struct inflate_state FAR *)strm->state; - strm->total_in = strm->total_out = state->total = 0; - strm->msg = Z_NULL; - strm->adler = 1; /* to support ill-conceived Java test suite */ - state->mode = HEAD; - state->last = 0; - state->havedict = 0; - state->dmax = 32768U; - state->head = Z_NULL; - state->wsize = 0; - state->whave = 0; - state->write = 0; - state->hold = 0; - state->bits = 0; - state->lencode = state->distcode = state->next = state->codes; - Tracev((stderr, "inflate: reset\n")); - return Z_OK; -} - -int ZEXPORT inflatePrime(strm, bits, value) -z_streamp strm; -int bits; -int value; -{ - struct inflate_state FAR *state; - - if (strm == Z_NULL || strm->state == Z_NULL) return Z_STREAM_ERROR; - state = (struct inflate_state FAR *)strm->state; - if (bits > 16 || state->bits + bits > 32) return Z_STREAM_ERROR; - value &= (1L << bits) - 1; - state->hold += value << state->bits; - state->bits += bits; - return Z_OK; -} - -int ZEXPORT inflateInit2_(strm, windowBits, version, stream_size) -z_streamp strm; -int windowBits; -const char *version; -int stream_size; -{ - struct inflate_state FAR *state; - - if (version == Z_NULL || version[0] != ZLIB_VERSION[0] || - stream_size != (int)(sizeof(z_stream))) - return Z_VERSION_ERROR; - if (strm == Z_NULL) return Z_STREAM_ERROR; - strm->msg = Z_NULL; /* in case we return an error */ - if (strm->zalloc == (alloc_func)0) { - strm->zalloc = zcalloc; - strm->opaque = (voidpf)0; - } - if (strm->zfree == (free_func)0) strm->zfree = zcfree; - state = (struct inflate_state FAR *) - ZALLOC(strm, 1, sizeof(struct inflate_state)); - if (state == Z_NULL) return Z_MEM_ERROR; - Tracev((stderr, "inflate: allocated\n")); - strm->state = (struct internal_state FAR *)state; - if (windowBits < 0) { - state->wrap = 0; - windowBits = -windowBits; - } - else { - state->wrap = (windowBits >> 4) + 1; -#ifdef GUNZIP - if (windowBits < 48) windowBits &= 15; -#endif - } - if (windowBits < 8 || windowBits > 15) { - ZFREE(strm, state); - strm->state = Z_NULL; - return Z_STREAM_ERROR; - } - state->wbits = (unsigned)windowBits; - state->window = Z_NULL; - return inflateReset(strm); -} - -int ZEXPORT inflateInit_(strm, version, stream_size) -z_streamp strm; -const char *version; -int stream_size; -{ - return inflateInit2_(strm, DEF_WBITS, version, stream_size); -} - -/* - Return state with length and distance decoding tables and index sizes set to - fixed code decoding. Normally this returns fixed tables from inffixed.h. - If BUILDFIXED is defined, then instead this routine builds the tables the - first time it's called, and returns those tables the first time and - thereafter. This reduces the size of the code by about 2K bytes, in - exchange for a little execution time. However, BUILDFIXED should not be - used for threaded applications, since the rewriting of the tables and virgin - may not be thread-safe. - */ -local void fixedtables(state) -struct inflate_state FAR *state; -{ -#ifdef BUILDFIXED - static int virgin = 1; - static code *lenfix, *distfix; - static code fixed[544]; - - /* build fixed huffman tables if first call (may not be thread safe) */ - if (virgin) { - unsigned sym, bits; - static code *next; - - /* literal/length table */ - sym = 0; - while (sym < 144) state->lens[sym++] = 8; - while (sym < 256) state->lens[sym++] = 9; - while (sym < 280) state->lens[sym++] = 7; - while (sym < 288) state->lens[sym++] = 8; - next = fixed; - lenfix = next; - bits = 9; - inflate_table(LENS, state->lens, 288, &(next), &(bits), state->work); - - /* distance table */ - sym = 0; - while (sym < 32) state->lens[sym++] = 5; - distfix = next; - bits = 5; - inflate_table(DISTS, state->lens, 32, &(next), &(bits), state->work); - - /* do this just once */ - virgin = 0; - } -#else /* !BUILDFIXED */ -# include "inffixed.h" -#endif /* BUILDFIXED */ - state->lencode = lenfix; - state->lenbits = 9; - state->distcode = distfix; - state->distbits = 5; -} - -#ifdef MAKEFIXED -#include - -/* - Write out the inffixed.h that is #include'd above. Defining MAKEFIXED also - defines BUILDFIXED, so the tables are built on the fly. makefixed() writes - those tables to stdout, which would be piped to inffixed.h. A small program - can simply call makefixed to do this: - - void makefixed(void); - - int main(void) - { - makefixed(); - return 0; - } - - Then that can be linked with zlib built with MAKEFIXED defined and run: - - a.out > inffixed.h - */ -void makefixed() -{ - unsigned low, size; - struct inflate_state state; - - fixedtables(&state); - puts(" /* inffixed.h -- table for decoding fixed codes"); - puts(" * Generated automatically by makefixed()."); - puts(" */"); - puts(""); - puts(" /* WARNING: this file should *not* be used by applications."); - puts(" It is part of the implementation of this library and is"); - puts(" subject to change. Applications should only use zlib.h."); - puts(" */"); - puts(""); - size = 1U << 9; - printf(" static const code lenfix[%u] = {", size); - low = 0; - for (;;) { - if ((low % 7) == 0) printf("\n "); - printf("{%u,%u,%d}", state.lencode[low].op, state.lencode[low].bits, - state.lencode[low].val); - if (++low == size) break; - putchar(','); - } - puts("\n };"); - size = 1U << 5; - printf("\n static const code distfix[%u] = {", size); - low = 0; - for (;;) { - if ((low % 6) == 0) printf("\n "); - printf("{%u,%u,%d}", state.distcode[low].op, state.distcode[low].bits, - state.distcode[low].val); - if (++low == size) break; - putchar(','); - } - puts("\n };"); -} -#endif /* MAKEFIXED */ - -/* - Update the window with the last wsize (normally 32K) bytes written before - returning. If window does not exist yet, create it. This is only called - when a window is already in use, or when output has been written during this - inflate call, but the end of the deflate stream has not been reached yet. - It is also called to create a window for dictionary data when a dictionary - is loaded. - - Providing output buffers larger than 32K to inflate() should provide a speed - advantage, since only the last 32K of output is copied to the sliding window - upon return from inflate(), and since all distances after the first 32K of - output will fall in the output data, making match copies simpler and faster. - The advantage may be dependent on the size of the processor's data caches. - */ -local int updatewindow(strm, out) -z_streamp strm; -unsigned out; -{ - struct inflate_state FAR *state; - unsigned copy, dist; - - state = (struct inflate_state FAR *)strm->state; - - /* if it hasn't been done already, allocate space for the window */ - if (state->window == Z_NULL) { - state->window = (unsigned char FAR *) - ZALLOC(strm, 1U << state->wbits, - sizeof(unsigned char)); - if (state->window == Z_NULL) return 1; - } - - /* if window not in use yet, initialize */ - if (state->wsize == 0) { - state->wsize = 1U << state->wbits; - state->write = 0; - state->whave = 0; - } - - /* copy state->wsize or less output bytes into the circular window */ - copy = out - strm->avail_out; - if (copy >= state->wsize) { - zmemcpy(state->window, strm->next_out - state->wsize, state->wsize); - state->write = 0; - state->whave = state->wsize; - } - else { - dist = state->wsize - state->write; - if (dist > copy) dist = copy; - zmemcpy(state->window + state->write, strm->next_out - copy, dist); - copy -= dist; - if (copy) { - zmemcpy(state->window, strm->next_out - copy, copy); - state->write = copy; - state->whave = state->wsize; - } - else { - state->write += dist; - if (state->write == state->wsize) state->write = 0; - if (state->whave < state->wsize) state->whave += dist; - } - } - return 0; -} - -/* Macros for inflate(): */ - -/* check function to use adler32() for zlib or crc32() for gzip */ -#ifdef GUNZIP -# define UPDATE(check, buf, len) \ - (state->flags ? crc32(check, buf, len) : adler32(check, buf, len)) -#else -# define UPDATE(check, buf, len) adler32(check, buf, len) -#endif - -/* check macros for header crc */ -#ifdef GUNZIP -# define CRC2(check, word) \ - do { \ - hbuf[0] = (unsigned char)(word); \ - hbuf[1] = (unsigned char)((word) >> 8); \ - check = crc32(check, hbuf, 2); \ - } while (0) - -# define CRC4(check, word) \ - do { \ - hbuf[0] = (unsigned char)(word); \ - hbuf[1] = (unsigned char)((word) >> 8); \ - hbuf[2] = (unsigned char)((word) >> 16); \ - hbuf[3] = (unsigned char)((word) >> 24); \ - check = crc32(check, hbuf, 4); \ - } while (0) -#endif - -/* Load registers with state in inflate() for speed */ -#define LOAD() \ - do { \ - put = strm->next_out; \ - left = strm->avail_out; \ - next = strm->next_in; \ - have = strm->avail_in; \ - hold = state->hold; \ - bits = state->bits; \ - } while (0) - -/* Restore state from registers in inflate() */ -#define RESTORE() \ - do { \ - strm->next_out = put; \ - strm->avail_out = left; \ - strm->next_in = next; \ - strm->avail_in = have; \ - state->hold = hold; \ - state->bits = bits; \ - } while (0) - -/* Clear the input bit accumulator */ -#define INITBITS() \ - do { \ - hold = 0; \ - bits = 0; \ - } while (0) - -/* Get a byte of input into the bit accumulator, or return from inflate() - if there is no input available. */ -#define PULLBYTE() \ - do { \ - if (have == 0) goto inf_leave; \ - have--; \ - hold += (unsigned long)(*next++) << bits; \ - bits += 8; \ - } while (0) - -/* Assure that there are at least n bits in the bit accumulator. If there is - not enough available input to do that, then return from inflate(). */ -#define NEEDBITS(n) \ - do { \ - while (bits < (unsigned)(n)) \ - PULLBYTE(); \ - } while (0) - -/* Return the low n bits of the bit accumulator (n < 16) */ -#define BITS(n) \ - ((unsigned)hold & ((1U << (n)) - 1)) - -/* Remove n bits from the bit accumulator */ -#define DROPBITS(n) \ - do { \ - hold >>= (n); \ - bits -= (unsigned)(n); \ - } while (0) - -/* Remove zero to seven bits as needed to go to a byte boundary */ -#define BYTEBITS() \ - do { \ - hold >>= bits & 7; \ - bits -= bits & 7; \ - } while (0) - -/* Reverse the bytes in a 32-bit value */ -#define REVERSE(q) \ - ((((q) >> 24) & 0xff) + (((q) >> 8) & 0xff00) + \ - (((q) & 0xff00) << 8) + (((q) & 0xff) << 24)) - -/* - inflate() uses a state machine to process as much input data and generate as - much output data as possible before returning. The state machine is - structured roughly as follows: - - for (;;) switch (state) { - ... - case STATEn: - if (not enough input data or output space to make progress) - return; - ... make progress ... - state = STATEm; - break; - ... - } - - so when inflate() is called again, the same case is attempted again, and - if the appropriate resources are provided, the machine proceeds to the - next state. The NEEDBITS() macro is usually the way the state evaluates - whether it can proceed or should return. NEEDBITS() does the return if - the requested bits are not available. The typical use of the BITS macros - is: - - NEEDBITS(n); - ... do something with BITS(n) ... - DROPBITS(n); - - where NEEDBITS(n) either returns from inflate() if there isn't enough - input left to load n bits into the accumulator, or it continues. BITS(n) - gives the low n bits in the accumulator. When done, DROPBITS(n) drops - the low n bits off the accumulator. INITBITS() clears the accumulator - and sets the number of available bits to zero. BYTEBITS() discards just - enough bits to put the accumulator on a byte boundary. After BYTEBITS() - and a NEEDBITS(8), then BITS(8) would return the next byte in the stream. - - NEEDBITS(n) uses PULLBYTE() to get an available byte of input, or to return - if there is no input available. The decoding of variable length codes uses - PULLBYTE() directly in order to pull just enough bytes to decode the next - code, and no more. - - Some states loop until they get enough input, making sure that enough - state information is maintained to continue the loop where it left off - if NEEDBITS() returns in the loop. For example, want, need, and keep - would all have to actually be part of the saved state in case NEEDBITS() - returns: - - case STATEw: - while (want < need) { - NEEDBITS(n); - keep[want++] = BITS(n); - DROPBITS(n); - } - state = STATEx; - case STATEx: - - As shown above, if the next state is also the next case, then the break - is omitted. - - A state may also return if there is not enough output space available to - complete that state. Those states are copying stored data, writing a - literal byte, and copying a matching string. - - When returning, a "goto inf_leave" is used to update the total counters, - update the check value, and determine whether any progress has been made - during that inflate() call in order to return the proper return code. - Progress is defined as a change in either strm->avail_in or strm->avail_out. - When there is a window, goto inf_leave will update the window with the last - output written. If a goto inf_leave occurs in the middle of decompression - and there is no window currently, goto inf_leave will create one and copy - output to the window for the next call of inflate(). - - In this implementation, the flush parameter of inflate() only affects the - return code (per zlib.h). inflate() always writes as much as possible to - strm->next_out, given the space available and the provided input--the effect - documented in zlib.h of Z_SYNC_FLUSH. Furthermore, inflate() always defers - the allocation of and copying into a sliding window until necessary, which - provides the effect documented in zlib.h for Z_FINISH when the entire input - stream available. So the only thing the flush parameter actually does is: - when flush is set to Z_FINISH, inflate() cannot return Z_OK. Instead it - will return Z_BUF_ERROR if it has not reached the end of the stream. - */ - -int ZEXPORT inflate(strm, flush) -z_streamp strm; -int flush; -{ - struct inflate_state FAR *state; - unsigned char FAR *next; /* next input */ - unsigned char FAR *put; /* next output */ - unsigned have, left; /* available input and output */ - unsigned long hold; /* bit buffer */ - unsigned bits; /* bits in bit buffer */ - unsigned in, out; /* save starting available input and output */ - unsigned copy; /* number of stored or match bytes to copy */ - unsigned char FAR *from; /* where to copy match bytes from */ - code this; /* current decoding table entry */ - code last; /* parent table entry */ - unsigned len; /* length to copy for repeats, bits to drop */ - int ret; /* return code */ -#ifdef GUNZIP - unsigned char hbuf[4]; /* buffer for gzip header crc calculation */ -#endif - static const unsigned short order[19] = /* permutation of code lengths */ - {16, 17, 18, 0, 8, 7, 9, 6, 10, 5, 11, 4, 12, 3, 13, 2, 14, 1, 15}; - - if (strm == Z_NULL || strm->state == Z_NULL || strm->next_out == Z_NULL || - (strm->next_in == Z_NULL && strm->avail_in != 0)) - return Z_STREAM_ERROR; - - state = (struct inflate_state FAR *)strm->state; - if (state->mode == TYPE) state->mode = TYPEDO; /* skip check */ - LOAD(); - in = have; - out = left; - ret = Z_OK; - for (;;) - switch (state->mode) { - case HEAD: - if (state->wrap == 0) { - state->mode = TYPEDO; - break; - } - NEEDBITS(16); -#ifdef GUNZIP - if ((state->wrap & 2) && hold == 0x8b1f) { /* gzip header */ - state->check = crc32(0L, Z_NULL, 0); - CRC2(state->check, hold); - INITBITS(); - state->mode = FLAGS; - break; - } - state->flags = 0; /* expect zlib header */ - if (state->head != Z_NULL) - state->head->done = -1; - if (!(state->wrap & 1) || /* check if zlib header allowed */ -#else - if ( -#endif - ((BITS(8) << 8) + (hold >> 8)) % 31) { - strm->msg = (char *)"incorrect header check"; - state->mode = BAD; - break; - } - if (BITS(4) != Z_DEFLATED) { - strm->msg = (char *)"unknown compression method"; - state->mode = BAD; - break; - } - DROPBITS(4); - len = BITS(4) + 8; - if (len > state->wbits) { - strm->msg = (char *)"invalid window size"; - state->mode = BAD; - break; - } - state->dmax = 1U << len; - Tracev((stderr, "inflate: zlib header ok\n")); - strm->adler = state->check = adler32(0L, Z_NULL, 0); - state->mode = hold & 0x200 ? DICTID : TYPE; - INITBITS(); - break; -#ifdef GUNZIP - case FLAGS: - NEEDBITS(16); - state->flags = (int)(hold); - if ((state->flags & 0xff) != Z_DEFLATED) { - strm->msg = (char *)"unknown compression method"; - state->mode = BAD; - break; - } - if (state->flags & 0xe000) { - strm->msg = (char *)"unknown header flags set"; - state->mode = BAD; - break; - } - if (state->head != Z_NULL) - state->head->text = (int)((hold >> 8) & 1); - if (state->flags & 0x0200) CRC2(state->check, hold); - INITBITS(); - state->mode = TIME; - case TIME: - NEEDBITS(32); - if (state->head != Z_NULL) - state->head->time = hold; - if (state->flags & 0x0200) CRC4(state->check, hold); - INITBITS(); - state->mode = OS; - case OS: - NEEDBITS(16); - if (state->head != Z_NULL) { - state->head->xflags = (int)(hold & 0xff); - state->head->os = (int)(hold >> 8); - } - if (state->flags & 0x0200) CRC2(state->check, hold); - INITBITS(); - state->mode = EXLEN; - case EXLEN: - if (state->flags & 0x0400) { - NEEDBITS(16); - state->length = (unsigned)(hold); - if (state->head != Z_NULL) - state->head->extra_len = (unsigned)hold; - if (state->flags & 0x0200) CRC2(state->check, hold); - INITBITS(); - } - else if (state->head != Z_NULL) - state->head->extra = Z_NULL; - state->mode = EXTRA; - case EXTRA: - if (state->flags & 0x0400) { - copy = state->length; - if (copy > have) copy = have; - if (copy) { - if (state->head != Z_NULL && - state->head->extra != Z_NULL) { - len = state->head->extra_len - state->length; - zmemcpy(state->head->extra + len, next, - len + copy > state->head->extra_max ? - state->head->extra_max - len : copy); - } - if (state->flags & 0x0200) - state->check = crc32(state->check, next, copy); - have -= copy; - next += copy; - state->length -= copy; - } - if (state->length) goto inf_leave; - } - state->length = 0; - state->mode = NAME; - case NAME: - if (state->flags & 0x0800) { - if (have == 0) goto inf_leave; - copy = 0; - do { - len = (unsigned)(next[copy++]); - if (state->head != Z_NULL && - state->head->name != Z_NULL && - state->length < state->head->name_max) - state->head->name[state->length++] = len; - } while (len && copy < have); - if (state->flags & 0x0200) - state->check = crc32(state->check, next, copy); - have -= copy; - next += copy; - if (len) goto inf_leave; - } - else if (state->head != Z_NULL) - state->head->name = Z_NULL; - state->length = 0; - state->mode = COMMENT; - case COMMENT: - if (state->flags & 0x1000) { - if (have == 0) goto inf_leave; - copy = 0; - do { - len = (unsigned)(next[copy++]); - if (state->head != Z_NULL && - state->head->comment != Z_NULL && - state->length < state->head->comm_max) - state->head->comment[state->length++] = len; - } while (len && copy < have); - if (state->flags & 0x0200) - state->check = crc32(state->check, next, copy); - have -= copy; - next += copy; - if (len) goto inf_leave; - } - else if (state->head != Z_NULL) - state->head->comment = Z_NULL; - state->mode = HCRC; - case HCRC: - if (state->flags & 0x0200) { - NEEDBITS(16); - if (hold != (state->check & 0xffff)) { - strm->msg = (char *)"header crc mismatch"; - state->mode = BAD; - break; - } - INITBITS(); - } - if (state->head != Z_NULL) { - state->head->hcrc = (int)((state->flags >> 9) & 1); - state->head->done = 1; - } - strm->adler = state->check = crc32(0L, Z_NULL, 0); - state->mode = TYPE; - break; -#endif - case DICTID: - NEEDBITS(32); - strm->adler = state->check = REVERSE(hold); - INITBITS(); - state->mode = DICT; - case DICT: - if (state->havedict == 0) { - RESTORE(); - return Z_NEED_DICT; - } - strm->adler = state->check = adler32(0L, Z_NULL, 0); - state->mode = TYPE; - case TYPE: - if (flush == Z_BLOCK) goto inf_leave; - case TYPEDO: - if (state->last) { - BYTEBITS(); - state->mode = CHECK; - break; - } - NEEDBITS(3); - state->last = BITS(1); - DROPBITS(1); - switch (BITS(2)) { - case 0: /* stored block */ - Tracev((stderr, "inflate: stored block%s\n", - state->last ? " (last)" : "")); - state->mode = STORED; - break; - case 1: /* fixed block */ - fixedtables(state); - Tracev((stderr, "inflate: fixed codes block%s\n", - state->last ? " (last)" : "")); - state->mode = LEN; /* decode codes */ - break; - case 2: /* dynamic block */ - Tracev((stderr, "inflate: dynamic codes block%s\n", - state->last ? " (last)" : "")); - state->mode = TABLE; - break; - case 3: - strm->msg = (char *)"invalid block type"; - state->mode = BAD; - } - DROPBITS(2); - break; - case STORED: - BYTEBITS(); /* go to byte boundary */ - NEEDBITS(32); - if ((hold & 0xffff) != ((hold >> 16) ^ 0xffff)) { - strm->msg = (char *)"invalid stored block lengths"; - state->mode = BAD; - break; - } - state->length = (unsigned)hold & 0xffff; - Tracev((stderr, "inflate: stored length %u\n", - state->length)); - INITBITS(); - state->mode = COPY; - case COPY: - copy = state->length; - if (copy) { - if (copy > have) copy = have; - if (copy > left) copy = left; - if (copy == 0) goto inf_leave; - zmemcpy(put, next, copy); - have -= copy; - next += copy; - left -= copy; - put += copy; - state->length -= copy; - break; - } - Tracev((stderr, "inflate: stored end\n")); - state->mode = TYPE; - break; - case TABLE: - NEEDBITS(14); - state->nlen = BITS(5) + 257; - DROPBITS(5); - state->ndist = BITS(5) + 1; - DROPBITS(5); - state->ncode = BITS(4) + 4; - DROPBITS(4); -#ifndef PKZIP_BUG_WORKAROUND - if (state->nlen > 286 || state->ndist > 30) { - strm->msg = (char *)"too many length or distance symbols"; - state->mode = BAD; - break; - } -#endif - Tracev((stderr, "inflate: table sizes ok\n")); - state->have = 0; - state->mode = LENLENS; - case LENLENS: - while (state->have < state->ncode) { - NEEDBITS(3); - state->lens[order[state->have++]] = (unsigned short)BITS(3); - DROPBITS(3); - } - while (state->have < 19) - state->lens[order[state->have++]] = 0; - state->next = state->codes; - state->lencode = (code const FAR *)(state->next); - state->lenbits = 7; - ret = inflate_table(CODES, state->lens, 19, &(state->next), - &(state->lenbits), state->work); - if (ret) { - strm->msg = (char *)"invalid code lengths set"; - state->mode = BAD; - break; - } - Tracev((stderr, "inflate: code lengths ok\n")); - state->have = 0; - state->mode = CODELENS; - case CODELENS: - while (state->have < state->nlen + state->ndist) { - for (;;) { - this = state->lencode[BITS(state->lenbits)]; - if ((unsigned)(this.bits) <= bits) break; - PULLBYTE(); - } - if (this.val < 16) { - NEEDBITS(this.bits); - DROPBITS(this.bits); - state->lens[state->have++] = this.val; - } - else { - if (this.val == 16) { - NEEDBITS(this.bits + 2); - DROPBITS(this.bits); - if (state->have == 0) { - strm->msg = (char *)"invalid bit length repeat"; - state->mode = BAD; - break; - } - len = state->lens[state->have - 1]; - copy = 3 + BITS(2); - DROPBITS(2); - } - else if (this.val == 17) { - NEEDBITS(this.bits + 3); - DROPBITS(this.bits); - len = 0; - copy = 3 + BITS(3); - DROPBITS(3); - } - else { - NEEDBITS(this.bits + 7); - DROPBITS(this.bits); - len = 0; - copy = 11 + BITS(7); - DROPBITS(7); - } - if (state->have + copy > state->nlen + state->ndist) { - strm->msg = (char *)"invalid bit length repeat"; - state->mode = BAD; - break; - } - while (copy--) - state->lens[state->have++] = (unsigned short)len; - } - } - - /* handle error breaks in while */ - if (state->mode == BAD) break; - - /* build code tables */ - state->next = state->codes; - state->lencode = (code const FAR *)(state->next); - state->lenbits = 9; - ret = inflate_table(LENS, state->lens, state->nlen, &(state->next), - &(state->lenbits), state->work); - if (ret) { - strm->msg = (char *)"invalid literal/lengths set"; - state->mode = BAD; - break; - } - state->distcode = (code const FAR *)(state->next); - state->distbits = 6; - ret = inflate_table(DISTS, state->lens + state->nlen, state->ndist, - &(state->next), &(state->distbits), state->work); - if (ret) { - strm->msg = (char *)"invalid distances set"; - state->mode = BAD; - break; - } - Tracev((stderr, "inflate: codes ok\n")); - state->mode = LEN; - case LEN: - if (have >= 6 && left >= 258) { - RESTORE(); - inflate_fast(strm, out); - LOAD(); - break; - } - for (;;) { - this = state->lencode[BITS(state->lenbits)]; - if ((unsigned)(this.bits) <= bits) break; - PULLBYTE(); - } - if (this.op && (this.op & 0xf0) == 0) { - last = this; - for (;;) { - this = state->lencode[last.val + - (BITS(last.bits + last.op) >> last.bits)]; - if ((unsigned)(last.bits + this.bits) <= bits) break; - PULLBYTE(); - } - DROPBITS(last.bits); - } - DROPBITS(this.bits); - state->length = (unsigned)this.val; - if ((int)(this.op) == 0) { - Tracevv((stderr, this.val >= 0x20 && this.val < 0x7f ? - "inflate: literal '%c'\n" : - "inflate: literal 0x%02x\n", this.val)); - state->mode = LIT; - break; - } - if (this.op & 32) { - Tracevv((stderr, "inflate: end of block\n")); - state->mode = TYPE; - break; - } - if (this.op & 64) { - strm->msg = (char *)"invalid literal/length code"; - state->mode = BAD; - break; - } - state->extra = (unsigned)(this.op) & 15; - state->mode = LENEXT; - case LENEXT: - if (state->extra) { - NEEDBITS(state->extra); - state->length += BITS(state->extra); - DROPBITS(state->extra); - } - Tracevv((stderr, "inflate: length %u\n", state->length)); - state->mode = DIST; - case DIST: - for (;;) { - this = state->distcode[BITS(state->distbits)]; - if ((unsigned)(this.bits) <= bits) break; - PULLBYTE(); - } - if ((this.op & 0xf0) == 0) { - last = this; - for (;;) { - this = state->distcode[last.val + - (BITS(last.bits + last.op) >> last.bits)]; - if ((unsigned)(last.bits + this.bits) <= bits) break; - PULLBYTE(); - } - DROPBITS(last.bits); - } - DROPBITS(this.bits); - if (this.op & 64) { - strm->msg = (char *)"invalid distance code"; - state->mode = BAD; - break; - } - state->offset = (unsigned)this.val; - state->extra = (unsigned)(this.op) & 15; - state->mode = DISTEXT; - case DISTEXT: - if (state->extra) { - NEEDBITS(state->extra); - state->offset += BITS(state->extra); - DROPBITS(state->extra); - } -#ifdef INFLATE_STRICT - if (state->offset > state->dmax) { - strm->msg = (char *)"invalid distance too far back"; - state->mode = BAD; - break; - } -#endif - if (state->offset > state->whave + out - left) { - strm->msg = (char *)"invalid distance too far back"; - state->mode = BAD; - break; - } - Tracevv((stderr, "inflate: distance %u\n", state->offset)); - state->mode = MATCH; - case MATCH: - if (left == 0) goto inf_leave; - copy = out - left; - if (state->offset > copy) { /* copy from window */ - copy = state->offset - copy; - if (copy > state->write) { - copy -= state->write; - from = state->window + (state->wsize - copy); - } - else - from = state->window + (state->write - copy); - if (copy > state->length) copy = state->length; - } - else { /* copy from output */ - from = put - state->offset; - copy = state->length; - } - if (copy > left) copy = left; - left -= copy; - state->length -= copy; - do { - *put++ = *from++; - } while (--copy); - if (state->length == 0) state->mode = LEN; - break; - case LIT: - if (left == 0) goto inf_leave; - *put++ = (unsigned char)(state->length); - left--; - state->mode = LEN; - break; - case CHECK: - if (state->wrap) { - NEEDBITS(32); - out -= left; - strm->total_out += out; - state->total += out; - if (out) - strm->adler = state->check = - UPDATE(state->check, put - out, out); - out = left; - if (( -#ifdef GUNZIP - state->flags ? hold : -#endif - REVERSE(hold)) != state->check) { - strm->msg = (char *)"incorrect data check"; - state->mode = BAD; - break; - } - INITBITS(); - Tracev((stderr, "inflate: check matches trailer\n")); - } -#ifdef GUNZIP - state->mode = LENGTH; - case LENGTH: - if (state->wrap && state->flags) { - NEEDBITS(32); - if (hold != (state->total & 0xffffffffUL)) { - strm->msg = (char *)"incorrect length check"; - state->mode = BAD; - break; - } - INITBITS(); - Tracev((stderr, "inflate: length matches trailer\n")); - } -#endif - state->mode = DONE; - case DONE: - ret = Z_STREAM_END; - goto inf_leave; - case BAD: - ret = Z_DATA_ERROR; - goto inf_leave; - case MEM: - return Z_MEM_ERROR; - case SYNC: - default: - return Z_STREAM_ERROR; - } - - /* - Return from inflate(), updating the total counts and the check value. - If there was no progress during the inflate() call, return a buffer - error. Call updatewindow() to create and/or update the window state. - Note: a memory error from inflate() is non-recoverable. - */ - inf_leave: - RESTORE(); - if (state->wsize || (state->mode < CHECK && out != strm->avail_out)) - if (updatewindow(strm, out)) { - state->mode = MEM; - return Z_MEM_ERROR; - } - in -= strm->avail_in; - out -= strm->avail_out; - strm->total_in += in; - strm->total_out += out; - state->total += out; - if (state->wrap && out) - strm->adler = state->check = - UPDATE(state->check, strm->next_out - out, out); - strm->data_type = state->bits + (state->last ? 64 : 0) + - (state->mode == TYPE ? 128 : 0); - if (((in == 0 && out == 0) || flush == Z_FINISH) && ret == Z_OK) - ret = Z_BUF_ERROR; - return ret; -} - -int ZEXPORT inflateEnd(strm) -z_streamp strm; -{ - struct inflate_state FAR *state; - if (strm == Z_NULL || strm->state == Z_NULL || strm->zfree == (free_func)0) - return Z_STREAM_ERROR; - state = (struct inflate_state FAR *)strm->state; - if (state->window != Z_NULL) ZFREE(strm, state->window); - ZFREE(strm, strm->state); - strm->state = Z_NULL; - Tracev((stderr, "inflate: end\n")); - return Z_OK; -} - -int ZEXPORT inflateSetDictionary(strm, dictionary, dictLength) -z_streamp strm; -const Bytef *dictionary; -uInt dictLength; -{ - struct inflate_state FAR *state; - unsigned long id; - - /* check state */ - if (strm == Z_NULL || strm->state == Z_NULL) return Z_STREAM_ERROR; - state = (struct inflate_state FAR *)strm->state; - if (state->wrap != 0 && state->mode != DICT) - return Z_STREAM_ERROR; - - /* check for correct dictionary id */ - if (state->mode == DICT) { - id = adler32(0L, Z_NULL, 0); - id = adler32(id, dictionary, dictLength); - if (id != state->check) - return Z_DATA_ERROR; - } - - /* copy dictionary to window */ - if (updatewindow(strm, strm->avail_out)) { - state->mode = MEM; - return Z_MEM_ERROR; - } - if (dictLength > state->wsize) { - zmemcpy(state->window, dictionary + dictLength - state->wsize, - state->wsize); - state->whave = state->wsize; - } - else { - zmemcpy(state->window + state->wsize - dictLength, dictionary, - dictLength); - state->whave = dictLength; - } - state->havedict = 1; - Tracev((stderr, "inflate: dictionary set\n")); - return Z_OK; -} - -int ZEXPORT inflateGetHeader(strm, head) -z_streamp strm; -gz_headerp head; -{ - struct inflate_state FAR *state; - - /* check state */ - if (strm == Z_NULL || strm->state == Z_NULL) return Z_STREAM_ERROR; - state = (struct inflate_state FAR *)strm->state; - if ((state->wrap & 2) == 0) return Z_STREAM_ERROR; - - /* save header structure */ - state->head = head; - head->done = 0; - return Z_OK; -} - -/* - Search buf[0..len-1] for the pattern: 0, 0, 0xff, 0xff. Return when found - or when out of input. When called, *have is the number of pattern bytes - found in order so far, in 0..3. On return *have is updated to the new - state. If on return *have equals four, then the pattern was found and the - return value is how many bytes were read including the last byte of the - pattern. If *have is less than four, then the pattern has not been found - yet and the return value is len. In the latter case, syncsearch() can be - called again with more data and the *have state. *have is initialized to - zero for the first call. - */ -local unsigned syncsearch(have, buf, len) -unsigned FAR *have; -unsigned char FAR *buf; -unsigned len; -{ - unsigned got; - unsigned next; - - got = *have; - next = 0; - while (next < len && got < 4) { - if ((int)(buf[next]) == (got < 2 ? 0 : 0xff)) - got++; - else if (buf[next]) - got = 0; - else - got = 4 - got; - next++; - } - *have = got; - return next; -} - -int ZEXPORT inflateSync(strm) -z_streamp strm; -{ - unsigned len; /* number of bytes to look at or looked at */ - unsigned long in, out; /* temporary to save total_in and total_out */ - unsigned char buf[4]; /* to restore bit buffer to byte string */ - struct inflate_state FAR *state; - - /* check parameters */ - if (strm == Z_NULL || strm->state == Z_NULL) return Z_STREAM_ERROR; - state = (struct inflate_state FAR *)strm->state; - if (strm->avail_in == 0 && state->bits < 8) return Z_BUF_ERROR; - - /* if first time, start search in bit buffer */ - if (state->mode != SYNC) { - state->mode = SYNC; - state->hold <<= state->bits & 7; - state->bits -= state->bits & 7; - len = 0; - while (state->bits >= 8) { - buf[len++] = (unsigned char)(state->hold); - state->hold >>= 8; - state->bits -= 8; - } - state->have = 0; - syncsearch(&(state->have), buf, len); - } - - /* search available input */ - len = syncsearch(&(state->have), strm->next_in, strm->avail_in); - strm->avail_in -= len; - strm->next_in += len; - strm->total_in += len; - - /* return no joy or set up to restart inflate() on a new block */ - if (state->have != 4) return Z_DATA_ERROR; - in = strm->total_in; out = strm->total_out; - inflateReset(strm); - strm->total_in = in; strm->total_out = out; - state->mode = TYPE; - return Z_OK; -} - -/* - Returns true if inflate is currently at the end of a block generated by - Z_SYNC_FLUSH or Z_FULL_FLUSH. This function is used by one PPP - implementation to provide an additional safety check. PPP uses - Z_SYNC_FLUSH but removes the length bytes of the resulting empty stored - block. When decompressing, PPP checks that at the end of input packet, - inflate is waiting for these length bytes. - */ -int ZEXPORT inflateSyncPoint(strm) -z_streamp strm; -{ - struct inflate_state FAR *state; - - if (strm == Z_NULL || strm->state == Z_NULL) return Z_STREAM_ERROR; - state = (struct inflate_state FAR *)strm->state; - return state->mode == STORED && state->bits == 0; -} - -int ZEXPORT inflateCopy(dest, source) -z_streamp dest; -z_streamp source; -{ - struct inflate_state FAR *state; - struct inflate_state FAR *copy; - unsigned char FAR *window; - unsigned wsize; - - /* check input */ - if (dest == Z_NULL || source == Z_NULL || source->state == Z_NULL || - source->zalloc == (alloc_func)0 || source->zfree == (free_func)0) - return Z_STREAM_ERROR; - state = (struct inflate_state FAR *)source->state; - - /* allocate space */ - copy = (struct inflate_state FAR *) - ZALLOC(source, 1, sizeof(struct inflate_state)); - if (copy == Z_NULL) return Z_MEM_ERROR; - window = Z_NULL; - if (state->window != Z_NULL) { - window = (unsigned char FAR *) - ZALLOC(source, 1U << state->wbits, sizeof(unsigned char)); - if (window == Z_NULL) { - ZFREE(source, copy); - return Z_MEM_ERROR; - } - } - - /* copy state */ - zmemcpy(dest, source, sizeof(z_stream)); - zmemcpy(copy, state, sizeof(struct inflate_state)); - if (state->lencode >= state->codes && - state->lencode <= state->codes + ENOUGH - 1) { - copy->lencode = copy->codes + (state->lencode - state->codes); - copy->distcode = copy->codes + (state->distcode - state->codes); - } - copy->next = copy->codes + (state->next - state->codes); - if (window != Z_NULL) { - wsize = 1U << state->wbits; - zmemcpy(window, state->window, wsize); - } - copy->window = window; - dest->state = (struct internal_state FAR *)copy; - return Z_OK; -} diff --git a/src/3rdParty/CxImage/zlib/inflate.h b/src/3rdParty/CxImage/zlib/inflate.h deleted file mode 100644 index fbbc871432..0000000000 --- a/src/3rdParty/CxImage/zlib/inflate.h +++ /dev/null @@ -1,115 +0,0 @@ -/* inflate.h -- internal inflate state definition - * Copyright (C) 1995-2004 Mark Adler - * For conditions of distribution and use, see copyright notice in zlib.h - */ - -/* WARNING: this file should *not* be used by applications. It is - part of the implementation of the compression library and is - subject to change. Applications should only use zlib.h. - */ - -/* define NO_GZIP when compiling if you want to disable gzip header and - trailer decoding by inflate(). NO_GZIP would be used to avoid linking in - the crc code when it is not needed. For shared libraries, gzip decoding - should be left enabled. */ -#ifndef NO_GZIP -# define GUNZIP -#endif - -/* Possible inflate modes between inflate() calls */ -typedef enum { - HEAD, /* i: waiting for magic header */ - FLAGS, /* i: waiting for method and flags (gzip) */ - TIME, /* i: waiting for modification time (gzip) */ - OS, /* i: waiting for extra flags and operating system (gzip) */ - EXLEN, /* i: waiting for extra length (gzip) */ - EXTRA, /* i: waiting for extra bytes (gzip) */ - NAME, /* i: waiting for end of file name (gzip) */ - COMMENT, /* i: waiting for end of comment (gzip) */ - HCRC, /* i: waiting for header crc (gzip) */ - DICTID, /* i: waiting for dictionary check value */ - DICT, /* waiting for inflateSetDictionary() call */ - TYPE, /* i: waiting for type bits, including last-flag bit */ - TYPEDO, /* i: same, but skip check to exit inflate on new block */ - STORED, /* i: waiting for stored size (length and complement) */ - COPY, /* i/o: waiting for input or output to copy stored block */ - TABLE, /* i: waiting for dynamic block table lengths */ - LENLENS, /* i: waiting for code length code lengths */ - CODELENS, /* i: waiting for length/lit and distance code lengths */ - LEN, /* i: waiting for length/lit code */ - LENEXT, /* i: waiting for length extra bits */ - DIST, /* i: waiting for distance code */ - DISTEXT, /* i: waiting for distance extra bits */ - MATCH, /* o: waiting for output space to copy string */ - LIT, /* o: waiting for output space to write literal */ - CHECK, /* i: waiting for 32-bit check value */ - LENGTH, /* i: waiting for 32-bit length (gzip) */ - DONE, /* finished check, done -- remain here until reset */ - BAD, /* got a data error -- remain here until reset */ - MEM, /* got an inflate() memory error -- remain here until reset */ - SYNC /* looking for synchronization bytes to restart inflate() */ -} inflate_mode; - -/* - State transitions between above modes - - - (most modes can go to the BAD or MEM mode -- not shown for clarity) - - Process header: - HEAD -> (gzip) or (zlib) - (gzip) -> FLAGS -> TIME -> OS -> EXLEN -> EXTRA -> NAME - NAME -> COMMENT -> HCRC -> TYPE - (zlib) -> DICTID or TYPE - DICTID -> DICT -> TYPE - Read deflate blocks: - TYPE -> STORED or TABLE or LEN or CHECK - STORED -> COPY -> TYPE - TABLE -> LENLENS -> CODELENS -> LEN - Read deflate codes: - LEN -> LENEXT or LIT or TYPE - LENEXT -> DIST -> DISTEXT -> MATCH -> LEN - LIT -> LEN - Process trailer: - CHECK -> LENGTH -> DONE - */ - -/* state maintained between inflate() calls. Approximately 7K bytes. */ -struct inflate_state { - inflate_mode mode; /* current inflate mode */ - int last; /* true if processing last block */ - int wrap; /* bit 0 true for zlib, bit 1 true for gzip */ - int havedict; /* true if dictionary provided */ - int flags; /* gzip header method and flags (0 if zlib) */ - unsigned dmax; /* zlib header max distance (INFLATE_STRICT) */ - unsigned long check; /* protected copy of check value */ - unsigned long total; /* protected copy of output count */ - gz_headerp head; /* where to save gzip header information */ - /* sliding window */ - unsigned wbits; /* log base 2 of requested window size */ - unsigned wsize; /* window size or zero if not using window */ - unsigned whave; /* valid bytes in the window */ - unsigned write; /* window write index */ - unsigned char FAR *window; /* allocated sliding window, if needed */ - /* bit accumulator */ - unsigned long hold; /* input bit accumulator */ - unsigned bits; /* number of bits in "in" */ - /* for string and stored block copying */ - unsigned length; /* literal or length of data to copy */ - unsigned offset; /* distance back to copy string from */ - /* for table and code decoding */ - unsigned extra; /* extra bits needed */ - /* fixed and dynamic code tables */ - code const FAR *lencode; /* starting table for length/literal codes */ - code const FAR *distcode; /* starting table for distance codes */ - unsigned lenbits; /* index bits for lencode */ - unsigned distbits; /* index bits for distcode */ - /* dynamic table building */ - unsigned ncode; /* number of code length code lengths */ - unsigned nlen; /* number of length code lengths */ - unsigned ndist; /* number of distance code lengths */ - unsigned have; /* number of code lengths in lens[] */ - code FAR *next; /* next available space in codes[] */ - unsigned short lens[320]; /* temporary storage for code lengths */ - unsigned short work[288]; /* work area for code table building */ - code codes[ENOUGH]; /* space for code tables */ -}; diff --git a/src/3rdParty/CxImage/zlib/inftrees.c b/src/3rdParty/CxImage/zlib/inftrees.c deleted file mode 100644 index 38ded81c36..0000000000 --- a/src/3rdParty/CxImage/zlib/inftrees.c +++ /dev/null @@ -1,329 +0,0 @@ -/* inftrees.c -- generate Huffman trees for efficient decoding - * Copyright (C) 1995-2005 Mark Adler - * For conditions of distribution and use, see copyright notice in zlib.h - */ - -#include "zutil.h" -#include "inftrees.h" - -#define MAXBITS 15 - -const char inflate_copyright[] = - " inflate 1.2.3 Copyright 1995-2005 Mark Adler "; -/* - If you use the zlib library in a product, an acknowledgment is welcome - in the documentation of your product. If for some reason you cannot - include such an acknowledgment, I would appreciate that you keep this - copyright string in the executable of your product. - */ - -/* - Build a set of tables to decode the provided canonical Huffman code. - The code lengths are lens[0..codes-1]. The result starts at *table, - whose indices are 0..2^bits-1. work is a writable array of at least - lens shorts, which is used as a work area. type is the type of code - to be generated, CODES, LENS, or DISTS. On return, zero is success, - -1 is an invalid code, and +1 means that ENOUGH isn't enough. table - on return points to the next available entry's address. bits is the - requested root table index bits, and on return it is the actual root - table index bits. It will differ if the request is greater than the - longest code or if it is less than the shortest code. - */ -int inflate_table(type, lens, codes, table, bits, work) -codetype type; -unsigned short FAR *lens; -unsigned codes; -code FAR * FAR *table; -unsigned FAR *bits; -unsigned short FAR *work; -{ - unsigned len; /* a code's length in bits */ - unsigned sym; /* index of code symbols */ - unsigned min, max; /* minimum and maximum code lengths */ - unsigned root; /* number of index bits for root table */ - unsigned curr; /* number of index bits for current table */ - unsigned drop; /* code bits to drop for sub-table */ - int left; /* number of prefix codes available */ - unsigned used; /* code entries in table used */ - unsigned huff; /* Huffman code */ - unsigned incr; /* for incrementing code, index */ - unsigned fill; /* index for replicating entries */ - unsigned low; /* low bits for current root entry */ - unsigned mask; /* mask for low root bits */ - code this; /* table entry for duplication */ - code FAR *next; /* next available space in table */ - const unsigned short FAR *base; /* base value table to use */ - const unsigned short FAR *extra; /* extra bits table to use */ - int end; /* use base and extra for symbol > end */ - unsigned short count[MAXBITS+1]; /* number of codes of each length */ - unsigned short offs[MAXBITS+1]; /* offsets in table for each length */ - static const unsigned short lbase[31] = { /* Length codes 257..285 base */ - 3, 4, 5, 6, 7, 8, 9, 10, 11, 13, 15, 17, 19, 23, 27, 31, - 35, 43, 51, 59, 67, 83, 99, 115, 131, 163, 195, 227, 258, 0, 0}; - static const unsigned short lext[31] = { /* Length codes 257..285 extra */ - 16, 16, 16, 16, 16, 16, 16, 16, 17, 17, 17, 17, 18, 18, 18, 18, - 19, 19, 19, 19, 20, 20, 20, 20, 21, 21, 21, 21, 16, 201, 196}; - static const unsigned short dbase[32] = { /* Distance codes 0..29 base */ - 1, 2, 3, 4, 5, 7, 9, 13, 17, 25, 33, 49, 65, 97, 129, 193, - 257, 385, 513, 769, 1025, 1537, 2049, 3073, 4097, 6145, - 8193, 12289, 16385, 24577, 0, 0}; - static const unsigned short dext[32] = { /* Distance codes 0..29 extra */ - 16, 16, 16, 16, 17, 17, 18, 18, 19, 19, 20, 20, 21, 21, 22, 22, - 23, 23, 24, 24, 25, 25, 26, 26, 27, 27, - 28, 28, 29, 29, 64, 64}; - - /* - Process a set of code lengths to create a canonical Huffman code. The - code lengths are lens[0..codes-1]. Each length corresponds to the - symbols 0..codes-1. The Huffman code is generated by first sorting the - symbols by length from short to long, and retaining the symbol order - for codes with equal lengths. Then the code starts with all zero bits - for the first code of the shortest length, and the codes are integer - increments for the same length, and zeros are appended as the length - increases. For the deflate format, these bits are stored backwards - from their more natural integer increment ordering, and so when the - decoding tables are built in the large loop below, the integer codes - are incremented backwards. - - This routine assumes, but does not check, that all of the entries in - lens[] are in the range 0..MAXBITS. The caller must assure this. - 1..MAXBITS is interpreted as that code length. zero means that that - symbol does not occur in this code. - - The codes are sorted by computing a count of codes for each length, - creating from that a table of starting indices for each length in the - sorted table, and then entering the symbols in order in the sorted - table. The sorted table is work[], with that space being provided by - the caller. - - The length counts are used for other purposes as well, i.e. finding - the minimum and maximum length codes, determining if there are any - codes at all, checking for a valid set of lengths, and looking ahead - at length counts to determine sub-table sizes when building the - decoding tables. - */ - - /* accumulate lengths for codes (assumes lens[] all in 0..MAXBITS) */ - for (len = 0; len <= MAXBITS; len++) - count[len] = 0; - for (sym = 0; sym < codes; sym++) - count[lens[sym]]++; - - /* bound code lengths, force root to be within code lengths */ - root = *bits; - for (max = MAXBITS; max >= 1; max--) - if (count[max] != 0) break; - if (root > max) root = max; - if (max == 0) { /* no symbols to code at all */ - this.op = (unsigned char)64; /* invalid code marker */ - this.bits = (unsigned char)1; - this.val = (unsigned short)0; - *(*table)++ = this; /* make a table to force an error */ - *(*table)++ = this; - *bits = 1; - return 0; /* no symbols, but wait for decoding to report error */ - } - for (min = 1; min <= MAXBITS; min++) - if (count[min] != 0) break; - if (root < min) root = min; - - /* check for an over-subscribed or incomplete set of lengths */ - left = 1; - for (len = 1; len <= MAXBITS; len++) { - left <<= 1; - left -= count[len]; - if (left < 0) return -1; /* over-subscribed */ - } - if (left > 0 && (type == CODES || max != 1)) - return -1; /* incomplete set */ - - /* generate offsets into symbol table for each length for sorting */ - offs[1] = 0; - for (len = 1; len < MAXBITS; len++) - offs[len + 1] = offs[len] + count[len]; - - /* sort symbols by length, by symbol order within each length */ - for (sym = 0; sym < codes; sym++) - if (lens[sym] != 0) work[offs[lens[sym]]++] = (unsigned short)sym; - - /* - Create and fill in decoding tables. In this loop, the table being - filled is at next and has curr index bits. The code being used is huff - with length len. That code is converted to an index by dropping drop - bits off of the bottom. For codes where len is less than drop + curr, - those top drop + curr - len bits are incremented through all values to - fill the table with replicated entries. - - root is the number of index bits for the root table. When len exceeds - root, sub-tables are created pointed to by the root entry with an index - of the low root bits of huff. This is saved in low to check for when a - new sub-table should be started. drop is zero when the root table is - being filled, and drop is root when sub-tables are being filled. - - When a new sub-table is needed, it is necessary to look ahead in the - code lengths to determine what size sub-table is needed. The length - counts are used for this, and so count[] is decremented as codes are - entered in the tables. - - used keeps track of how many table entries have been allocated from the - provided *table space. It is checked when a LENS table is being made - against the space in *table, ENOUGH, minus the maximum space needed by - the worst case distance code, MAXD. This should never happen, but the - sufficiency of ENOUGH has not been proven exhaustively, hence the check. - This assumes that when type == LENS, bits == 9. - - sym increments through all symbols, and the loop terminates when - all codes of length max, i.e. all codes, have been processed. This - routine permits incomplete codes, so another loop after this one fills - in the rest of the decoding tables with invalid code markers. - */ - - /* set up for code type */ - switch (type) { - case CODES: - base = extra = work; /* dummy value--not used */ - end = 19; - break; - case LENS: - base = lbase; - base -= 257; - extra = lext; - extra -= 257; - end = 256; - break; - default: /* DISTS */ - base = dbase; - extra = dext; - end = -1; - } - - /* initialize state for loop */ - huff = 0; /* starting code */ - sym = 0; /* starting code symbol */ - len = min; /* starting code length */ - next = *table; /* current table to fill in */ - curr = root; /* current table index bits */ - drop = 0; /* current bits to drop from code for index */ - low = (unsigned)(-1); /* trigger new sub-table when len > root */ - used = 1U << root; /* use root table entries */ - mask = used - 1; /* mask for comparing low */ - - /* check available table space */ - if (type == LENS && used >= ENOUGH - MAXD) - return 1; - - /* process all codes and make table entries */ - for (;;) { - /* create table entry */ - this.bits = (unsigned char)(len - drop); - if ((int)(work[sym]) < end) { - this.op = (unsigned char)0; - this.val = work[sym]; - } - else if ((int)(work[sym]) > end) { - this.op = (unsigned char)(extra[work[sym]]); - this.val = base[work[sym]]; - } - else { - this.op = (unsigned char)(32 + 64); /* end of block */ - this.val = 0; - } - - /* replicate for those indices with low len bits equal to huff */ - incr = 1U << (len - drop); - fill = 1U << curr; - min = fill; /* save offset to next table */ - do { - fill -= incr; - next[(huff >> drop) + fill] = this; - } while (fill != 0); - - /* backwards increment the len-bit code huff */ - incr = 1U << (len - 1); - while (huff & incr) - incr >>= 1; - if (incr != 0) { - huff &= incr - 1; - huff += incr; - } - else - huff = 0; - - /* go to next symbol, update count, len */ - sym++; - if (--(count[len]) == 0) { - if (len == max) break; - len = lens[work[sym]]; - } - - /* create new sub-table if needed */ - if (len > root && (huff & mask) != low) { - /* if first time, transition to sub-tables */ - if (drop == 0) - drop = root; - - /* increment past last table */ - next += min; /* here min is 1 << curr */ - - /* determine length of next table */ - curr = len - drop; - left = (int)(1 << curr); - while (curr + drop < max) { - left -= count[curr + drop]; - if (left <= 0) break; - curr++; - left <<= 1; - } - - /* check for enough space */ - used += 1U << curr; - if (type == LENS && used >= ENOUGH - MAXD) - return 1; - - /* point entry in root table to sub-table */ - low = huff & mask; - (*table)[low].op = (unsigned char)curr; - (*table)[low].bits = (unsigned char)root; - (*table)[low].val = (unsigned short)(next - *table); - } - } - - /* - Fill in rest of table for incomplete codes. This loop is similar to the - loop above in incrementing huff for table indices. It is assumed that - len is equal to curr + drop, so there is no loop needed to increment - through high index bits. When the current sub-table is filled, the loop - drops back to the root table to fill in any remaining entries there. - */ - this.op = (unsigned char)64; /* invalid code marker */ - this.bits = (unsigned char)(len - drop); - this.val = (unsigned short)0; - while (huff != 0) { - /* when done with sub-table, drop back to root table */ - if (drop != 0 && (huff & mask) != low) { - drop = 0; - len = root; - next = *table; - this.bits = (unsigned char)len; - } - - /* put invalid code marker in table */ - next[huff >> drop] = this; - - /* backwards increment the len-bit code huff */ - incr = 1U << (len - 1); - while (huff & incr) - incr >>= 1; - if (incr != 0) { - huff &= incr - 1; - huff += incr; - } - else - huff = 0; - } - - /* set return parameters */ - *table += used; - *bits = root; - return 0; -} diff --git a/src/3rdParty/CxImage/zlib/inftrees.h b/src/3rdParty/CxImage/zlib/inftrees.h deleted file mode 100644 index dc0fd567ea..0000000000 --- a/src/3rdParty/CxImage/zlib/inftrees.h +++ /dev/null @@ -1,55 +0,0 @@ -/* inftrees.h -- header to use inftrees.c - * Copyright (C) 1995-2005 Mark Adler - * For conditions of distribution and use, see copyright notice in zlib.h - */ - -/* WARNING: this file should *not* be used by applications. It is - part of the implementation of the compression library and is - subject to change. Applications should only use zlib.h. - */ - -/* Structure for decoding tables. Each entry provides either the - information needed to do the operation requested by the code that - indexed that table entry, or it provides a pointer to another - table that indexes more bits of the code. op indicates whether - the entry is a pointer to another table, a literal, a length or - distance, an end-of-block, or an invalid code. For a table - pointer, the low four bits of op is the number of index bits of - that table. For a length or distance, the low four bits of op - is the number of extra bits to get after the code. bits is - the number of bits in this code or part of the code to drop off - of the bit buffer. val is the actual byte to output in the case - of a literal, the base length or distance, or the offset from - the current table to the next table. Each entry is four bytes. */ -typedef struct { - unsigned char op; /* operation, extra bits, table bits */ - unsigned char bits; /* bits in this part of the code */ - unsigned short val; /* offset in table or code value */ -} code; - -/* op values as set by inflate_table(): - 00000000 - literal - 0000tttt - table link, tttt != 0 is the number of table index bits - 0001eeee - length or distance, eeee is the number of extra bits - 01100000 - end of block - 01000000 - invalid code - */ - -/* Maximum size of dynamic tree. The maximum found in a long but non- - exhaustive search was 1444 code structures (852 for length/literals - and 592 for distances, the latter actually the result of an - exhaustive search). The true maximum is not known, but the value - below is more than safe. */ -#define ENOUGH 2048 -#define MAXD 592 - -/* Type of code to build for inftable() */ -typedef enum { - CODES, - LENS, - DISTS -} codetype; - -extern int inflate_table OF((codetype type, unsigned short FAR *lens, - unsigned codes, code FAR * FAR *table, - unsigned FAR *bits, unsigned short FAR *work)); diff --git a/src/3rdParty/CxImage/zlib/trees.c b/src/3rdParty/CxImage/zlib/trees.c deleted file mode 100644 index 7a04802862..0000000000 --- a/src/3rdParty/CxImage/zlib/trees.c +++ /dev/null @@ -1,1219 +0,0 @@ -/* trees.c -- output deflated data using Huffman coding - * Copyright (C) 1995-2005 Jean-loup Gailly - * For conditions of distribution and use, see copyright notice in zlib.h - */ - -/* - * ALGORITHM - * - * The "deflation" process uses several Huffman trees. The more - * common source values are represented by shorter bit sequences. - * - * Each code tree is stored in a compressed form which is itself - * a Huffman encoding of the lengths of all the code strings (in - * ascending order by source values). The actual code strings are - * reconstructed from the lengths in the inflate process, as described - * in the deflate specification. - * - * REFERENCES - * - * Deutsch, L.P.,"'Deflate' Compressed Data Format Specification". - * Available in ftp.uu.net:/pub/archiving/zip/doc/deflate-1.1.doc - * - * Storer, James A. - * Data Compression: Methods and Theory, pp. 49-50. - * Computer Science Press, 1988. ISBN 0-7167-8156-5. - * - * Sedgewick, R. - * Algorithms, p290. - * Addison-Wesley, 1983. ISBN 0-201-06672-6. - */ - -/* @(#) $Id$ */ - -/* #define GEN_TREES_H */ - -#include "deflate.h" - -#ifdef DEBUG -# include -#endif - -/* =========================================================================== - * Constants - */ - -#define MAX_BL_BITS 7 -/* Bit length codes must not exceed MAX_BL_BITS bits */ - -#define END_BLOCK 256 -/* end of block literal code */ - -#define REP_3_6 16 -/* repeat previous bit length 3-6 times (2 bits of repeat count) */ - -#define REPZ_3_10 17 -/* repeat a zero length 3-10 times (3 bits of repeat count) */ - -#define REPZ_11_138 18 -/* repeat a zero length 11-138 times (7 bits of repeat count) */ - -local const int extra_lbits[LENGTH_CODES] /* extra bits for each length code */ - = {0,0,0,0,0,0,0,0,1,1,1,1,2,2,2,2,3,3,3,3,4,4,4,4,5,5,5,5,0}; - -local const int extra_dbits[D_CODES] /* extra bits for each distance code */ - = {0,0,0,0,1,1,2,2,3,3,4,4,5,5,6,6,7,7,8,8,9,9,10,10,11,11,12,12,13,13}; - -local const int extra_blbits[BL_CODES]/* extra bits for each bit length code */ - = {0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,2,3,7}; - -local const uch bl_order[BL_CODES] - = {16,17,18,0,8,7,9,6,10,5,11,4,12,3,13,2,14,1,15}; -/* The lengths of the bit length codes are sent in order of decreasing - * probability, to avoid transmitting the lengths for unused bit length codes. - */ - -#define Buf_size (8 * 2*sizeof(char)) -/* Number of bits used within bi_buf. (bi_buf might be implemented on - * more than 16 bits on some systems.) - */ - -/* =========================================================================== - * Local data. These are initialized only once. - */ - -#define DIST_CODE_LEN 512 /* see definition of array dist_code below */ - -#if defined(GEN_TREES_H) || !defined(STDC) -/* non ANSI compilers may not accept trees.h */ - -local ct_data static_ltree[L_CODES+2]; -/* The static literal tree. Since the bit lengths are imposed, there is no - * need for the L_CODES extra codes used during heap construction. However - * The codes 286 and 287 are needed to build a canonical tree (see _tr_init - * below). - */ - -local ct_data static_dtree[D_CODES]; -/* The static distance tree. (Actually a trivial tree since all codes use - * 5 bits.) - */ - -uch _dist_code[DIST_CODE_LEN]; -/* Distance codes. The first 256 values correspond to the distances - * 3 .. 258, the last 256 values correspond to the top 8 bits of - * the 15 bit distances. - */ - -uch _length_code[MAX_MATCH-MIN_MATCH+1]; -/* length code for each normalized match length (0 == MIN_MATCH) */ - -local int base_length[LENGTH_CODES]; -/* First normalized length for each code (0 = MIN_MATCH) */ - -local int base_dist[D_CODES]; -/* First normalized distance for each code (0 = distance of 1) */ - -#else -# include "trees.h" -#endif /* GEN_TREES_H */ - -struct static_tree_desc_s { - const ct_data *static_tree; /* static tree or NULL */ - const intf *extra_bits; /* extra bits for each code or NULL */ - int extra_base; /* base index for extra_bits */ - int elems; /* max number of elements in the tree */ - int max_length; /* max bit length for the codes */ -}; - -local static_tree_desc static_l_desc = -{static_ltree, extra_lbits, LITERALS+1, L_CODES, MAX_BITS}; - -local static_tree_desc static_d_desc = -{static_dtree, extra_dbits, 0, D_CODES, MAX_BITS}; - -local static_tree_desc static_bl_desc = -{(const ct_data *)0, extra_blbits, 0, BL_CODES, MAX_BL_BITS}; - -/* =========================================================================== - * Local (static) routines in this file. - */ - -local void tr_static_init OF((void)); -local void init_block OF((deflate_state *s)); -local void pqdownheap OF((deflate_state *s, ct_data *tree, int k)); -local void gen_bitlen OF((deflate_state *s, tree_desc *desc)); -local void gen_codes OF((ct_data *tree, int max_code, ushf *bl_count)); -local void build_tree OF((deflate_state *s, tree_desc *desc)); -local void scan_tree OF((deflate_state *s, ct_data *tree, int max_code)); -local void send_tree OF((deflate_state *s, ct_data *tree, int max_code)); -local int build_bl_tree OF((deflate_state *s)); -local void send_all_trees OF((deflate_state *s, int lcodes, int dcodes, - int blcodes)); -local void compress_block OF((deflate_state *s, ct_data *ltree, - ct_data *dtree)); -local void set_data_type OF((deflate_state *s)); -local unsigned bi_reverse OF((unsigned value, int length)); -local void bi_windup OF((deflate_state *s)); -local void bi_flush OF((deflate_state *s)); -local void copy_block OF((deflate_state *s, charf *buf, unsigned len, - int header)); - -#ifdef GEN_TREES_H -local void gen_trees_header OF((void)); -#endif - -#ifndef DEBUG -# define send_code(s, c, tree) send_bits(s, tree[c].Code, tree[c].Len) - /* Send a code of the given tree. c and tree must not have side effects */ - -#else /* DEBUG */ -# define send_code(s, c, tree) \ - { if (z_verbose>2) fprintf(stderr,"\ncd %3d ",(c)); \ - send_bits(s, tree[c].Code, tree[c].Len); } -#endif - -/* =========================================================================== - * Output a short LSB first on the stream. - * IN assertion: there is enough room in pendingBuf. - */ -#define put_short(s, w) { \ - put_byte(s, (uch)((w) & 0xff)); \ - put_byte(s, (uch)((ush)(w) >> 8)); \ -} - -/* =========================================================================== - * Send a value on a given number of bits. - * IN assertion: length <= 16 and value fits in length bits. - */ -#ifdef DEBUG -local void send_bits OF((deflate_state *s, int value, int length)); - -local void send_bits(s, value, length) - deflate_state *s; - int value; /* value to send */ - int length; /* number of bits */ -{ - Tracevv((stderr," l %2d v %4x ", length, value)); - Assert(length > 0 && length <= 15, "invalid length"); - s->bits_sent += (ulg)length; - - /* If not enough room in bi_buf, use (valid) bits from bi_buf and - * (16 - bi_valid) bits from value, leaving (width - (16-bi_valid)) - * unused bits in value. - */ - if (s->bi_valid > (int)Buf_size - length) { - s->bi_buf |= (value << s->bi_valid); - put_short(s, s->bi_buf); - s->bi_buf = (ush)value >> (Buf_size - s->bi_valid); - s->bi_valid += length - Buf_size; - } else { - s->bi_buf |= value << s->bi_valid; - s->bi_valid += length; - } -} -#else /* !DEBUG */ - -#define send_bits(s, value, length) \ -{ int len = length;\ - if (s->bi_valid > (int)Buf_size - len) {\ - int val = value;\ - s->bi_buf |= (val << s->bi_valid);\ - put_short(s, s->bi_buf);\ - s->bi_buf = (ush)val >> (Buf_size - s->bi_valid);\ - s->bi_valid += len - Buf_size;\ - } else {\ - s->bi_buf |= (value) << s->bi_valid;\ - s->bi_valid += len;\ - }\ -} -#endif /* DEBUG */ - - -/* the arguments must not have side effects */ - -/* =========================================================================== - * Initialize the various 'constant' tables. - */ -local void tr_static_init() -{ -#if defined(GEN_TREES_H) || !defined(STDC) - static int static_init_done = 0; - int n; /* iterates over tree elements */ - int bits; /* bit counter */ - int length; /* length value */ - int code; /* code value */ - int dist; /* distance index */ - ush bl_count[MAX_BITS+1]; - /* number of codes at each bit length for an optimal tree */ - - if (static_init_done) return; - - /* For some embedded targets, global variables are not initialized: */ - static_l_desc.static_tree = static_ltree; - static_l_desc.extra_bits = extra_lbits; - static_d_desc.static_tree = static_dtree; - static_d_desc.extra_bits = extra_dbits; - static_bl_desc.extra_bits = extra_blbits; - - /* Initialize the mapping length (0..255) -> length code (0..28) */ - length = 0; - for (code = 0; code < LENGTH_CODES-1; code++) { - base_length[code] = length; - for (n = 0; n < (1< dist code (0..29) */ - dist = 0; - for (code = 0 ; code < 16; code++) { - base_dist[code] = dist; - for (n = 0; n < (1<>= 7; /* from now on, all distances are divided by 128 */ - for ( ; code < D_CODES; code++) { - base_dist[code] = dist << 7; - for (n = 0; n < (1<<(extra_dbits[code]-7)); n++) { - _dist_code[256 + dist++] = (uch)code; - } - } - Assert (dist == 256, "tr_static_init: 256+dist != 512"); - - /* Construct the codes of the static literal tree */ - for (bits = 0; bits <= MAX_BITS; bits++) bl_count[bits] = 0; - n = 0; - while (n <= 143) static_ltree[n++].Len = 8, bl_count[8]++; - while (n <= 255) static_ltree[n++].Len = 9, bl_count[9]++; - while (n <= 279) static_ltree[n++].Len = 7, bl_count[7]++; - while (n <= 287) static_ltree[n++].Len = 8, bl_count[8]++; - /* Codes 286 and 287 do not exist, but we must include them in the - * tree construction to get a canonical Huffman tree (longest code - * all ones) - */ - gen_codes((ct_data *)static_ltree, L_CODES+1, bl_count); - - /* The static distance tree is trivial: */ - for (n = 0; n < D_CODES; n++) { - static_dtree[n].Len = 5; - static_dtree[n].Code = bi_reverse((unsigned)n, 5); - } - static_init_done = 1; - -# ifdef GEN_TREES_H - gen_trees_header(); -# endif -#endif /* defined(GEN_TREES_H) || !defined(STDC) */ -} - -/* =========================================================================== - * Genererate the file trees.h describing the static trees. - */ -#ifdef GEN_TREES_H -# ifndef DEBUG -# include -# endif - -# define SEPARATOR(i, last, width) \ - ((i) == (last)? "\n};\n\n" : \ - ((i) % (width) == (width)-1 ? ",\n" : ", ")) - -void gen_trees_header() -{ - FILE *header = fopen("trees.h", "w"); - int i; - - Assert (header != NULL, "Can't open trees.h"); - fprintf(header, - "/* header created automatically with -DGEN_TREES_H */\n\n"); - - fprintf(header, "local const ct_data static_ltree[L_CODES+2] = {\n"); - for (i = 0; i < L_CODES+2; i++) { - fprintf(header, "{{%3u},{%3u}}%s", static_ltree[i].Code, - static_ltree[i].Len, SEPARATOR(i, L_CODES+1, 5)); - } - - fprintf(header, "local const ct_data static_dtree[D_CODES] = {\n"); - for (i = 0; i < D_CODES; i++) { - fprintf(header, "{{%2u},{%2u}}%s", static_dtree[i].Code, - static_dtree[i].Len, SEPARATOR(i, D_CODES-1, 5)); - } - - fprintf(header, "const uch _dist_code[DIST_CODE_LEN] = {\n"); - for (i = 0; i < DIST_CODE_LEN; i++) { - fprintf(header, "%2u%s", _dist_code[i], - SEPARATOR(i, DIST_CODE_LEN-1, 20)); - } - - fprintf(header, "const uch _length_code[MAX_MATCH-MIN_MATCH+1]= {\n"); - for (i = 0; i < MAX_MATCH-MIN_MATCH+1; i++) { - fprintf(header, "%2u%s", _length_code[i], - SEPARATOR(i, MAX_MATCH-MIN_MATCH, 20)); - } - - fprintf(header, "local const int base_length[LENGTH_CODES] = {\n"); - for (i = 0; i < LENGTH_CODES; i++) { - fprintf(header, "%1u%s", base_length[i], - SEPARATOR(i, LENGTH_CODES-1, 20)); - } - - fprintf(header, "local const int base_dist[D_CODES] = {\n"); - for (i = 0; i < D_CODES; i++) { - fprintf(header, "%5u%s", base_dist[i], - SEPARATOR(i, D_CODES-1, 10)); - } - - fclose(header); -} -#endif /* GEN_TREES_H */ - -/* =========================================================================== - * Initialize the tree data structures for a new zlib stream. - */ -void _tr_init(s) - deflate_state *s; -{ - tr_static_init(); - - s->l_desc.dyn_tree = s->dyn_ltree; - s->l_desc.stat_desc = &static_l_desc; - - s->d_desc.dyn_tree = s->dyn_dtree; - s->d_desc.stat_desc = &static_d_desc; - - s->bl_desc.dyn_tree = s->bl_tree; - s->bl_desc.stat_desc = &static_bl_desc; - - s->bi_buf = 0; - s->bi_valid = 0; - s->last_eob_len = 8; /* enough lookahead for inflate */ -#ifdef DEBUG - s->compressed_len = 0L; - s->bits_sent = 0L; -#endif - - /* Initialize the first block of the first file: */ - init_block(s); -} - -/* =========================================================================== - * Initialize a new block. - */ -local void init_block(s) - deflate_state *s; -{ - int n; /* iterates over tree elements */ - - /* Initialize the trees. */ - for (n = 0; n < L_CODES; n++) s->dyn_ltree[n].Freq = 0; - for (n = 0; n < D_CODES; n++) s->dyn_dtree[n].Freq = 0; - for (n = 0; n < BL_CODES; n++) s->bl_tree[n].Freq = 0; - - s->dyn_ltree[END_BLOCK].Freq = 1; - s->opt_len = s->static_len = 0L; - s->last_lit = s->matches = 0; -} - -#define SMALLEST 1 -/* Index within the heap array of least frequent node in the Huffman tree */ - - -/* =========================================================================== - * Remove the smallest element from the heap and recreate the heap with - * one less element. Updates heap and heap_len. - */ -#define pqremove(s, tree, top) \ -{\ - top = s->heap[SMALLEST]; \ - s->heap[SMALLEST] = s->heap[s->heap_len--]; \ - pqdownheap(s, tree, SMALLEST); \ -} - -/* =========================================================================== - * Compares to subtrees, using the tree depth as tie breaker when - * the subtrees have equal frequency. This minimizes the worst case length. - */ -#define smaller(tree, n, m, depth) \ - (tree[n].Freq < tree[m].Freq || \ - (tree[n].Freq == tree[m].Freq && depth[n] <= depth[m])) - -/* =========================================================================== - * Restore the heap property by moving down the tree starting at node k, - * exchanging a node with the smallest of its two sons if necessary, stopping - * when the heap property is re-established (each father smaller than its - * two sons). - */ -local void pqdownheap(s, tree, k) - deflate_state *s; - ct_data *tree; /* the tree to restore */ - int k; /* node to move down */ -{ - int v = s->heap[k]; - int j = k << 1; /* left son of k */ - while (j <= s->heap_len) { - /* Set j to the smallest of the two sons: */ - if (j < s->heap_len && - smaller(tree, s->heap[j+1], s->heap[j], s->depth)) { - j++; - } - /* Exit if v is smaller than both sons */ - if (smaller(tree, v, s->heap[j], s->depth)) break; - - /* Exchange v with the smallest son */ - s->heap[k] = s->heap[j]; k = j; - - /* And continue down the tree, setting j to the left son of k */ - j <<= 1; - } - s->heap[k] = v; -} - -/* =========================================================================== - * Compute the optimal bit lengths for a tree and update the total bit length - * for the current block. - * IN assertion: the fields freq and dad are set, heap[heap_max] and - * above are the tree nodes sorted by increasing frequency. - * OUT assertions: the field len is set to the optimal bit length, the - * array bl_count contains the frequencies for each bit length. - * The length opt_len is updated; static_len is also updated if stree is - * not null. - */ -local void gen_bitlen(s, desc) - deflate_state *s; - tree_desc *desc; /* the tree descriptor */ -{ - ct_data *tree = desc->dyn_tree; - int max_code = desc->max_code; - const ct_data *stree = desc->stat_desc->static_tree; - const intf *extra = desc->stat_desc->extra_bits; - int base = desc->stat_desc->extra_base; - int max_length = desc->stat_desc->max_length; - int h; /* heap index */ - int n, m; /* iterate over the tree elements */ - int bits; /* bit length */ - int xbits; /* extra bits */ - ush f; /* frequency */ - int overflow = 0; /* number of elements with bit length too large */ - - for (bits = 0; bits <= MAX_BITS; bits++) s->bl_count[bits] = 0; - - /* In a first pass, compute the optimal bit lengths (which may - * overflow in the case of the bit length tree). - */ - tree[s->heap[s->heap_max]].Len = 0; /* root of the heap */ - - for (h = s->heap_max+1; h < HEAP_SIZE; h++) { - n = s->heap[h]; - bits = tree[tree[n].Dad].Len + 1; - if (bits > max_length) bits = max_length, overflow++; - tree[n].Len = (ush)bits; - /* We overwrite tree[n].Dad which is no longer needed */ - - if (n > max_code) continue; /* not a leaf node */ - - s->bl_count[bits]++; - xbits = 0; - if (n >= base) xbits = extra[n-base]; - f = tree[n].Freq; - s->opt_len += (ulg)f * (bits + xbits); - if (stree) s->static_len += (ulg)f * (stree[n].Len + xbits); - } - if (overflow == 0) return; - - Trace((stderr,"\nbit length overflow\n")); - /* This happens for example on obj2 and pic of the Calgary corpus */ - - /* Find the first bit length which could increase: */ - do { - bits = max_length-1; - while (s->bl_count[bits] == 0) bits--; - s->bl_count[bits]--; /* move one leaf down the tree */ - s->bl_count[bits+1] += 2; /* move one overflow item as its brother */ - s->bl_count[max_length]--; - /* The brother of the overflow item also moves one step up, - * but this does not affect bl_count[max_length] - */ - overflow -= 2; - } while (overflow > 0); - - /* Now recompute all bit lengths, scanning in increasing frequency. - * h is still equal to HEAP_SIZE. (It is simpler to reconstruct all - * lengths instead of fixing only the wrong ones. This idea is taken - * from 'ar' written by Haruhiko Okumura.) - */ - for (bits = max_length; bits != 0; bits--) { - n = s->bl_count[bits]; - while (n != 0) { - m = s->heap[--h]; - if (m > max_code) continue; - if ((unsigned) tree[m].Len != (unsigned) bits) { - Trace((stderr,"code %d bits %d->%d\n", m, tree[m].Len, bits)); - s->opt_len += ((long)bits - (long)tree[m].Len) - *(long)tree[m].Freq; - tree[m].Len = (ush)bits; - } - n--; - } - } -} - -/* =========================================================================== - * Generate the codes for a given tree and bit counts (which need not be - * optimal). - * IN assertion: the array bl_count contains the bit length statistics for - * the given tree and the field len is set for all tree elements. - * OUT assertion: the field code is set for all tree elements of non - * zero code length. - */ -local void gen_codes (tree, max_code, bl_count) - ct_data *tree; /* the tree to decorate */ - int max_code; /* largest code with non zero frequency */ - ushf *bl_count; /* number of codes at each bit length */ -{ - ush next_code[MAX_BITS+1]; /* next code value for each bit length */ - ush code = 0; /* running code value */ - int bits; /* bit index */ - int n; /* code index */ - - /* The distribution counts are first used to generate the code values - * without bit reversal. - */ - for (bits = 1; bits <= MAX_BITS; bits++) { - next_code[bits] = code = (code + bl_count[bits-1]) << 1; - } - /* Check that the bit counts in bl_count are consistent. The last code - * must be all ones. - */ - Assert (code + bl_count[MAX_BITS]-1 == (1<dyn_tree; - const ct_data *stree = desc->stat_desc->static_tree; - int elems = desc->stat_desc->elems; - int n, m; /* iterate over heap elements */ - int max_code = -1; /* largest code with non zero frequency */ - int node; /* new node being created */ - - /* Construct the initial heap, with least frequent element in - * heap[SMALLEST]. The sons of heap[n] are heap[2*n] and heap[2*n+1]. - * heap[0] is not used. - */ - s->heap_len = 0, s->heap_max = HEAP_SIZE; - - for (n = 0; n < elems; n++) { - if (tree[n].Freq != 0) { - s->heap[++(s->heap_len)] = max_code = n; - s->depth[n] = 0; - } else { - tree[n].Len = 0; - } - } - - /* The pkzip format requires that at least one distance code exists, - * and that at least one bit should be sent even if there is only one - * possible code. So to avoid special checks later on we force at least - * two codes of non zero frequency. - */ - while (s->heap_len < 2) { - node = s->heap[++(s->heap_len)] = (max_code < 2 ? ++max_code : 0); - tree[node].Freq = 1; - s->depth[node] = 0; - s->opt_len--; if (stree) s->static_len -= stree[node].Len; - /* node is 0 or 1 so it does not have extra bits */ - } - desc->max_code = max_code; - - /* The elements heap[heap_len/2+1 .. heap_len] are leaves of the tree, - * establish sub-heaps of increasing lengths: - */ - for (n = s->heap_len/2; n >= 1; n--) pqdownheap(s, tree, n); - - /* Construct the Huffman tree by repeatedly combining the least two - * frequent nodes. - */ - node = elems; /* next internal node of the tree */ - do { - pqremove(s, tree, n); /* n = node of least frequency */ - m = s->heap[SMALLEST]; /* m = node of next least frequency */ - - s->heap[--(s->heap_max)] = n; /* keep the nodes sorted by frequency */ - s->heap[--(s->heap_max)] = m; - - /* Create a new node father of n and m */ - tree[node].Freq = tree[n].Freq + tree[m].Freq; - s->depth[node] = (uch)((s->depth[n] >= s->depth[m] ? - s->depth[n] : s->depth[m]) + 1); - tree[n].Dad = tree[m].Dad = (ush)node; -#ifdef DUMP_BL_TREE - if (tree == s->bl_tree) { - fprintf(stderr,"\nnode %d(%d), sons %d(%d) %d(%d)", - node, tree[node].Freq, n, tree[n].Freq, m, tree[m].Freq); - } -#endif - /* and insert the new node in the heap */ - s->heap[SMALLEST] = node++; - pqdownheap(s, tree, SMALLEST); - - } while (s->heap_len >= 2); - - s->heap[--(s->heap_max)] = s->heap[SMALLEST]; - - /* At this point, the fields freq and dad are set. We can now - * generate the bit lengths. - */ - gen_bitlen(s, (tree_desc *)desc); - - /* The field len is now set, we can generate the bit codes */ - gen_codes ((ct_data *)tree, max_code, s->bl_count); -} - -/* =========================================================================== - * Scan a literal or distance tree to determine the frequencies of the codes - * in the bit length tree. - */ -local void scan_tree (s, tree, max_code) - deflate_state *s; - ct_data *tree; /* the tree to be scanned */ - int max_code; /* and its largest code of non zero frequency */ -{ - int n; /* iterates over all tree elements */ - int prevlen = -1; /* last emitted length */ - int curlen; /* length of current code */ - int nextlen = tree[0].Len; /* length of next code */ - int count = 0; /* repeat count of the current code */ - int max_count = 7; /* max repeat count */ - int min_count = 4; /* min repeat count */ - - if (nextlen == 0) max_count = 138, min_count = 3; - tree[max_code+1].Len = (ush)0xffff; /* guard */ - - for (n = 0; n <= max_code; n++) { - curlen = nextlen; nextlen = tree[n+1].Len; - if (++count < max_count && curlen == nextlen) { - continue; - } else if (count < min_count) { - s->bl_tree[curlen].Freq += count; - } else if (curlen != 0) { - if (curlen != prevlen) s->bl_tree[curlen].Freq++; - s->bl_tree[REP_3_6].Freq++; - } else if (count <= 10) { - s->bl_tree[REPZ_3_10].Freq++; - } else { - s->bl_tree[REPZ_11_138].Freq++; - } - count = 0; prevlen = curlen; - if (nextlen == 0) { - max_count = 138, min_count = 3; - } else if (curlen == nextlen) { - max_count = 6, min_count = 3; - } else { - max_count = 7, min_count = 4; - } - } -} - -/* =========================================================================== - * Send a literal or distance tree in compressed form, using the codes in - * bl_tree. - */ -local void send_tree (s, tree, max_code) - deflate_state *s; - ct_data *tree; /* the tree to be scanned */ - int max_code; /* and its largest code of non zero frequency */ -{ - int n; /* iterates over all tree elements */ - int prevlen = -1; /* last emitted length */ - int curlen; /* length of current code */ - int nextlen = tree[0].Len; /* length of next code */ - int count = 0; /* repeat count of the current code */ - int max_count = 7; /* max repeat count */ - int min_count = 4; /* min repeat count */ - - /* tree[max_code+1].Len = -1; */ /* guard already set */ - if (nextlen == 0) max_count = 138, min_count = 3; - - for (n = 0; n <= max_code; n++) { - curlen = nextlen; nextlen = tree[n+1].Len; - if (++count < max_count && curlen == nextlen) { - continue; - } else if (count < min_count) { - do { send_code(s, curlen, s->bl_tree); } while (--count != 0); - - } else if (curlen != 0) { - if (curlen != prevlen) { - send_code(s, curlen, s->bl_tree); count--; - } - Assert(count >= 3 && count <= 6, " 3_6?"); - send_code(s, REP_3_6, s->bl_tree); send_bits(s, count-3, 2); - - } else if (count <= 10) { - send_code(s, REPZ_3_10, s->bl_tree); send_bits(s, count-3, 3); - - } else { - send_code(s, REPZ_11_138, s->bl_tree); send_bits(s, count-11, 7); - } - count = 0; prevlen = curlen; - if (nextlen == 0) { - max_count = 138, min_count = 3; - } else if (curlen == nextlen) { - max_count = 6, min_count = 3; - } else { - max_count = 7, min_count = 4; - } - } -} - -/* =========================================================================== - * Construct the Huffman tree for the bit lengths and return the index in - * bl_order of the last bit length code to send. - */ -local int build_bl_tree(s) - deflate_state *s; -{ - int max_blindex; /* index of last bit length code of non zero freq */ - - /* Determine the bit length frequencies for literal and distance trees */ - scan_tree(s, (ct_data *)s->dyn_ltree, s->l_desc.max_code); - scan_tree(s, (ct_data *)s->dyn_dtree, s->d_desc.max_code); - - /* Build the bit length tree: */ - build_tree(s, (tree_desc *)(&(s->bl_desc))); - /* opt_len now includes the length of the tree representations, except - * the lengths of the bit lengths codes and the 5+5+4 bits for the counts. - */ - - /* Determine the number of bit length codes to send. The pkzip format - * requires that at least 4 bit length codes be sent. (appnote.txt says - * 3 but the actual value used is 4.) - */ - for (max_blindex = BL_CODES-1; max_blindex >= 3; max_blindex--) { - if (s->bl_tree[bl_order[max_blindex]].Len != 0) break; - } - /* Update opt_len to include the bit length tree and counts */ - s->opt_len += 3*(max_blindex+1) + 5+5+4; - Tracev((stderr, "\ndyn trees: dyn %ld, stat %ld", - s->opt_len, s->static_len)); - - return max_blindex; -} - -/* =========================================================================== - * Send the header for a block using dynamic Huffman trees: the counts, the - * lengths of the bit length codes, the literal tree and the distance tree. - * IN assertion: lcodes >= 257, dcodes >= 1, blcodes >= 4. - */ -local void send_all_trees(s, lcodes, dcodes, blcodes) - deflate_state *s; - int lcodes, dcodes, blcodes; /* number of codes for each tree */ -{ - int rank; /* index in bl_order */ - - Assert (lcodes >= 257 && dcodes >= 1 && blcodes >= 4, "not enough codes"); - Assert (lcodes <= L_CODES && dcodes <= D_CODES && blcodes <= BL_CODES, - "too many codes"); - Tracev((stderr, "\nbl counts: ")); - send_bits(s, lcodes-257, 5); /* not +255 as stated in appnote.txt */ - send_bits(s, dcodes-1, 5); - send_bits(s, blcodes-4, 4); /* not -3 as stated in appnote.txt */ - for (rank = 0; rank < blcodes; rank++) { - Tracev((stderr, "\nbl code %2d ", bl_order[rank])); - send_bits(s, s->bl_tree[bl_order[rank]].Len, 3); - } - Tracev((stderr, "\nbl tree: sent %ld", s->bits_sent)); - - send_tree(s, (ct_data *)s->dyn_ltree, lcodes-1); /* literal tree */ - Tracev((stderr, "\nlit tree: sent %ld", s->bits_sent)); - - send_tree(s, (ct_data *)s->dyn_dtree, dcodes-1); /* distance tree */ - Tracev((stderr, "\ndist tree: sent %ld", s->bits_sent)); -} - -/* =========================================================================== - * Send a stored block - */ -void _tr_stored_block(s, buf, stored_len, eof) - deflate_state *s; - charf *buf; /* input block */ - ulg stored_len; /* length of input block */ - int eof; /* true if this is the last block for a file */ -{ - send_bits(s, (STORED_BLOCK<<1)+eof, 3); /* send block type */ -#ifdef DEBUG - s->compressed_len = (s->compressed_len + 3 + 7) & (ulg)~7L; - s->compressed_len += (stored_len + 4) << 3; -#endif - copy_block(s, buf, (unsigned)stored_len, 1); /* with header */ -} - -/* =========================================================================== - * Send one empty static block to give enough lookahead for inflate. - * This takes 10 bits, of which 7 may remain in the bit buffer. - * The current inflate code requires 9 bits of lookahead. If the - * last two codes for the previous block (real code plus EOB) were coded - * on 5 bits or less, inflate may have only 5+3 bits of lookahead to decode - * the last real code. In this case we send two empty static blocks instead - * of one. (There are no problems if the previous block is stored or fixed.) - * To simplify the code, we assume the worst case of last real code encoded - * on one bit only. - */ -void _tr_align(s) - deflate_state *s; -{ - send_bits(s, STATIC_TREES<<1, 3); - send_code(s, END_BLOCK, static_ltree); -#ifdef DEBUG - s->compressed_len += 10L; /* 3 for block type, 7 for EOB */ -#endif - bi_flush(s); - /* Of the 10 bits for the empty block, we have already sent - * (10 - bi_valid) bits. The lookahead for the last real code (before - * the EOB of the previous block) was thus at least one plus the length - * of the EOB plus what we have just sent of the empty static block. - */ - if (1 + s->last_eob_len + 10 - s->bi_valid < 9) { - send_bits(s, STATIC_TREES<<1, 3); - send_code(s, END_BLOCK, static_ltree); -#ifdef DEBUG - s->compressed_len += 10L; -#endif - bi_flush(s); - } - s->last_eob_len = 7; -} - -/* =========================================================================== - * Determine the best encoding for the current block: dynamic trees, static - * trees or store, and output the encoded block to the zip file. - */ -void _tr_flush_block(s, buf, stored_len, eof) - deflate_state *s; - charf *buf; /* input block, or NULL if too old */ - ulg stored_len; /* length of input block */ - int eof; /* true if this is the last block for a file */ -{ - ulg opt_lenb, static_lenb; /* opt_len and static_len in bytes */ - int max_blindex = 0; /* index of last bit length code of non zero freq */ - - /* Build the Huffman trees unless a stored block is forced */ - if (s->level > 0) { - - /* Check if the file is binary or text */ - if (stored_len > 0 && s->strm->data_type == Z_UNKNOWN) - set_data_type(s); - - /* Construct the literal and distance trees */ - build_tree(s, (tree_desc *)(&(s->l_desc))); - Tracev((stderr, "\nlit data: dyn %ld, stat %ld", s->opt_len, - s->static_len)); - - build_tree(s, (tree_desc *)(&(s->d_desc))); - Tracev((stderr, "\ndist data: dyn %ld, stat %ld", s->opt_len, - s->static_len)); - /* At this point, opt_len and static_len are the total bit lengths of - * the compressed block data, excluding the tree representations. - */ - - /* Build the bit length tree for the above two trees, and get the index - * in bl_order of the last bit length code to send. - */ - max_blindex = build_bl_tree(s); - - /* Determine the best encoding. Compute the block lengths in bytes. */ - opt_lenb = (s->opt_len+3+7)>>3; - static_lenb = (s->static_len+3+7)>>3; - - Tracev((stderr, "\nopt %lu(%lu) stat %lu(%lu) stored %lu lit %u ", - opt_lenb, s->opt_len, static_lenb, s->static_len, stored_len, - s->last_lit)); - - if (static_lenb <= opt_lenb) opt_lenb = static_lenb; - - } else { - Assert(buf != (char*)0, "lost buf"); - opt_lenb = static_lenb = stored_len + 5; /* force a stored block */ - } - -#ifdef FORCE_STORED - if (buf != (char*)0) { /* force stored block */ -#else - if (stored_len+4 <= opt_lenb && buf != (char*)0) { - /* 4: two words for the lengths */ -#endif - /* The test buf != NULL is only necessary if LIT_BUFSIZE > WSIZE. - * Otherwise we can't have processed more than WSIZE input bytes since - * the last block flush, because compression would have been - * successful. If LIT_BUFSIZE <= WSIZE, it is never too late to - * transform a block into a stored block. - */ - _tr_stored_block(s, buf, stored_len, eof); - -#ifdef FORCE_STATIC - } else if (static_lenb >= 0) { /* force static trees */ -#else - } else if (s->strategy == Z_FIXED || static_lenb == opt_lenb) { -#endif - send_bits(s, (STATIC_TREES<<1)+eof, 3); - compress_block(s, (ct_data *)static_ltree, (ct_data *)static_dtree); -#ifdef DEBUG - s->compressed_len += 3 + s->static_len; -#endif - } else { - send_bits(s, (DYN_TREES<<1)+eof, 3); - send_all_trees(s, s->l_desc.max_code+1, s->d_desc.max_code+1, - max_blindex+1); - compress_block(s, (ct_data *)s->dyn_ltree, (ct_data *)s->dyn_dtree); -#ifdef DEBUG - s->compressed_len += 3 + s->opt_len; -#endif - } - Assert (s->compressed_len == s->bits_sent, "bad compressed size"); - /* The above check is made mod 2^32, for files larger than 512 MB - * and uLong implemented on 32 bits. - */ - init_block(s); - - if (eof) { - bi_windup(s); -#ifdef DEBUG - s->compressed_len += 7; /* align on byte boundary */ -#endif - } - Tracev((stderr,"\ncomprlen %lu(%lu) ", s->compressed_len>>3, - s->compressed_len-7*eof)); -} - -/* =========================================================================== - * Save the match info and tally the frequency counts. Return true if - * the current block must be flushed. - */ -int _tr_tally (s, dist, lc) - deflate_state *s; - unsigned dist; /* distance of matched string */ - unsigned lc; /* match length-MIN_MATCH or unmatched char (if dist==0) */ -{ - s->d_buf[s->last_lit] = (ush)dist; - s->l_buf[s->last_lit++] = (uch)lc; - if (dist == 0) { - /* lc is the unmatched char */ - s->dyn_ltree[lc].Freq++; - } else { - s->matches++; - /* Here, lc is the match length - MIN_MATCH */ - dist--; /* dist = match distance - 1 */ - Assert((ush)dist < (ush)MAX_DIST(s) && - (ush)lc <= (ush)(MAX_MATCH-MIN_MATCH) && - (ush)d_code(dist) < (ush)D_CODES, "_tr_tally: bad match"); - - s->dyn_ltree[_length_code[lc]+LITERALS+1].Freq++; - s->dyn_dtree[d_code(dist)].Freq++; - } - -#ifdef TRUNCATE_BLOCK - /* Try to guess if it is profitable to stop the current block here */ - if ((s->last_lit & 0x1fff) == 0 && s->level > 2) { - /* Compute an upper bound for the compressed length */ - ulg out_length = (ulg)s->last_lit*8L; - ulg in_length = (ulg)((long)s->strstart - s->block_start); - int dcode; - for (dcode = 0; dcode < D_CODES; dcode++) { - out_length += (ulg)s->dyn_dtree[dcode].Freq * - (5L+extra_dbits[dcode]); - } - out_length >>= 3; - Tracev((stderr,"\nlast_lit %u, in %ld, out ~%ld(%ld%%) ", - s->last_lit, in_length, out_length, - 100L - out_length*100L/in_length)); - if (s->matches < s->last_lit/2 && out_length < in_length/2) return 1; - } -#endif - return (s->last_lit == s->lit_bufsize-1); - /* We avoid equality with lit_bufsize because of wraparound at 64K - * on 16 bit machines and because stored blocks are restricted to - * 64K-1 bytes. - */ -} - -/* =========================================================================== - * Send the block data compressed using the given Huffman trees - */ -local void compress_block(s, ltree, dtree) - deflate_state *s; - ct_data *ltree; /* literal tree */ - ct_data *dtree; /* distance tree */ -{ - unsigned dist; /* distance of matched string */ - int lc; /* match length or unmatched char (if dist == 0) */ - unsigned lx = 0; /* running index in l_buf */ - unsigned code; /* the code to send */ - int extra; /* number of extra bits to send */ - - if (s->last_lit != 0) do { - dist = s->d_buf[lx]; - lc = s->l_buf[lx++]; - if (dist == 0) { - send_code(s, lc, ltree); /* send a literal byte */ - Tracecv(isgraph(lc), (stderr," '%c' ", lc)); - } else { - /* Here, lc is the match length - MIN_MATCH */ - code = _length_code[lc]; - send_code(s, code+LITERALS+1, ltree); /* send the length code */ - extra = extra_lbits[code]; - if (extra != 0) { - lc -= base_length[code]; - send_bits(s, lc, extra); /* send the extra length bits */ - } - dist--; /* dist is now the match distance - 1 */ - code = d_code(dist); - Assert (code < D_CODES, "bad d_code"); - - send_code(s, code, dtree); /* send the distance code */ - extra = extra_dbits[code]; - if (extra != 0) { - dist -= base_dist[code]; - send_bits(s, dist, extra); /* send the extra distance bits */ - } - } /* literal or match pair ? */ - - /* Check that the overlay between pending_buf and d_buf+l_buf is ok: */ - Assert((uInt)(s->pending) < s->lit_bufsize + 2*lx, - "pendingBuf overflow"); - - } while (lx < s->last_lit); - - send_code(s, END_BLOCK, ltree); - s->last_eob_len = ltree[END_BLOCK].Len; -} - -/* =========================================================================== - * Set the data type to BINARY or TEXT, using a crude approximation: - * set it to Z_TEXT if all symbols are either printable characters (33 to 255) - * or white spaces (9 to 13, or 32); or set it to Z_BINARY otherwise. - * IN assertion: the fields Freq of dyn_ltree are set. - */ -local void set_data_type(s) - deflate_state *s; -{ - int n; - - for (n = 0; n < 9; n++) - if (s->dyn_ltree[n].Freq != 0) - break; - if (n == 9) - for (n = 14; n < 32; n++) - if (s->dyn_ltree[n].Freq != 0) - break; - s->strm->data_type = (n == 32) ? Z_TEXT : Z_BINARY; -} - -/* =========================================================================== - * Reverse the first len bits of a code, using straightforward code (a faster - * method would use a table) - * IN assertion: 1 <= len <= 15 - */ -local unsigned bi_reverse(code, len) - unsigned code; /* the value to invert */ - int len; /* its bit length */ -{ - register unsigned res = 0; - do { - res |= code & 1; - code >>= 1, res <<= 1; - } while (--len > 0); - return res >> 1; -} - -/* =========================================================================== - * Flush the bit buffer, keeping at most 7 bits in it. - */ -local void bi_flush(s) - deflate_state *s; -{ - if (s->bi_valid == 16) { - put_short(s, s->bi_buf); - s->bi_buf = 0; - s->bi_valid = 0; - } else if (s->bi_valid >= 8) { - put_byte(s, (Byte)s->bi_buf); - s->bi_buf >>= 8; - s->bi_valid -= 8; - } -} - -/* =========================================================================== - * Flush the bit buffer and align the output on a byte boundary - */ -local void bi_windup(s) - deflate_state *s; -{ - if (s->bi_valid > 8) { - put_short(s, s->bi_buf); - } else if (s->bi_valid > 0) { - put_byte(s, (Byte)s->bi_buf); - } - s->bi_buf = 0; - s->bi_valid = 0; -#ifdef DEBUG - s->bits_sent = (s->bits_sent+7) & ~7; -#endif -} - -/* =========================================================================== - * Copy a stored block, storing first the length and its - * one's complement if requested. - */ -local void copy_block(s, buf, len, header) - deflate_state *s; - charf *buf; /* the input data */ - unsigned len; /* its length */ - int header; /* true if block header must be written */ -{ - bi_windup(s); /* align on byte boundary */ - s->last_eob_len = 8; /* enough lookahead for inflate */ - - if (header) { - put_short(s, (ush)len); - put_short(s, (ush)~len); -#ifdef DEBUG - s->bits_sent += 2*16; -#endif - } -#ifdef DEBUG - s->bits_sent += (ulg)len<<3; -#endif - while (len--) { - put_byte(s, *buf++); - } -} diff --git a/src/3rdParty/CxImage/zlib/trees.h b/src/3rdParty/CxImage/zlib/trees.h deleted file mode 100644 index 1ca868b848..0000000000 --- a/src/3rdParty/CxImage/zlib/trees.h +++ /dev/null @@ -1,128 +0,0 @@ -/* header created automatically with -DGEN_TREES_H */ - -local const ct_data static_ltree[L_CODES+2] = { -{{ 12},{ 8}}, {{140},{ 8}}, {{ 76},{ 8}}, {{204},{ 8}}, {{ 44},{ 8}}, -{{172},{ 8}}, {{108},{ 8}}, {{236},{ 8}}, {{ 28},{ 8}}, {{156},{ 8}}, -{{ 92},{ 8}}, {{220},{ 8}}, {{ 60},{ 8}}, {{188},{ 8}}, {{124},{ 8}}, -{{252},{ 8}}, {{ 2},{ 8}}, {{130},{ 8}}, {{ 66},{ 8}}, {{194},{ 8}}, -{{ 34},{ 8}}, {{162},{ 8}}, {{ 98},{ 8}}, {{226},{ 8}}, {{ 18},{ 8}}, -{{146},{ 8}}, {{ 82},{ 8}}, {{210},{ 8}}, {{ 50},{ 8}}, {{178},{ 8}}, -{{114},{ 8}}, {{242},{ 8}}, {{ 10},{ 8}}, {{138},{ 8}}, {{ 74},{ 8}}, -{{202},{ 8}}, {{ 42},{ 8}}, {{170},{ 8}}, {{106},{ 8}}, {{234},{ 8}}, -{{ 26},{ 8}}, {{154},{ 8}}, {{ 90},{ 8}}, {{218},{ 8}}, {{ 58},{ 8}}, -{{186},{ 8}}, {{122},{ 8}}, {{250},{ 8}}, {{ 6},{ 8}}, {{134},{ 8}}, -{{ 70},{ 8}}, {{198},{ 8}}, {{ 38},{ 8}}, {{166},{ 8}}, {{102},{ 8}}, -{{230},{ 8}}, {{ 22},{ 8}}, {{150},{ 8}}, {{ 86},{ 8}}, {{214},{ 8}}, -{{ 54},{ 8}}, {{182},{ 8}}, {{118},{ 8}}, {{246},{ 8}}, {{ 14},{ 8}}, -{{142},{ 8}}, {{ 78},{ 8}}, {{206},{ 8}}, {{ 46},{ 8}}, {{174},{ 8}}, -{{110},{ 8}}, {{238},{ 8}}, {{ 30},{ 8}}, {{158},{ 8}}, {{ 94},{ 8}}, -{{222},{ 8}}, {{ 62},{ 8}}, {{190},{ 8}}, {{126},{ 8}}, {{254},{ 8}}, -{{ 1},{ 8}}, {{129},{ 8}}, {{ 65},{ 8}}, {{193},{ 8}}, {{ 33},{ 8}}, -{{161},{ 8}}, {{ 97},{ 8}}, {{225},{ 8}}, {{ 17},{ 8}}, {{145},{ 8}}, -{{ 81},{ 8}}, {{209},{ 8}}, {{ 49},{ 8}}, {{177},{ 8}}, {{113},{ 8}}, -{{241},{ 8}}, {{ 9},{ 8}}, {{137},{ 8}}, {{ 73},{ 8}}, {{201},{ 8}}, -{{ 41},{ 8}}, {{169},{ 8}}, {{105},{ 8}}, {{233},{ 8}}, {{ 25},{ 8}}, -{{153},{ 8}}, {{ 89},{ 8}}, {{217},{ 8}}, {{ 57},{ 8}}, {{185},{ 8}}, -{{121},{ 8}}, {{249},{ 8}}, {{ 5},{ 8}}, {{133},{ 8}}, {{ 69},{ 8}}, -{{197},{ 8}}, {{ 37},{ 8}}, {{165},{ 8}}, {{101},{ 8}}, {{229},{ 8}}, -{{ 21},{ 8}}, {{149},{ 8}}, {{ 85},{ 8}}, {{213},{ 8}}, {{ 53},{ 8}}, -{{181},{ 8}}, {{117},{ 8}}, {{245},{ 8}}, {{ 13},{ 8}}, {{141},{ 8}}, -{{ 77},{ 8}}, {{205},{ 8}}, {{ 45},{ 8}}, {{173},{ 8}}, {{109},{ 8}}, -{{237},{ 8}}, {{ 29},{ 8}}, {{157},{ 8}}, {{ 93},{ 8}}, {{221},{ 8}}, -{{ 61},{ 8}}, {{189},{ 8}}, {{125},{ 8}}, {{253},{ 8}}, {{ 19},{ 9}}, -{{275},{ 9}}, {{147},{ 9}}, {{403},{ 9}}, {{ 83},{ 9}}, {{339},{ 9}}, -{{211},{ 9}}, {{467},{ 9}}, {{ 51},{ 9}}, {{307},{ 9}}, {{179},{ 9}}, -{{435},{ 9}}, {{115},{ 9}}, {{371},{ 9}}, {{243},{ 9}}, {{499},{ 9}}, -{{ 11},{ 9}}, {{267},{ 9}}, {{139},{ 9}}, {{395},{ 9}}, {{ 75},{ 9}}, -{{331},{ 9}}, {{203},{ 9}}, {{459},{ 9}}, {{ 43},{ 9}}, {{299},{ 9}}, -{{171},{ 9}}, {{427},{ 9}}, {{107},{ 9}}, {{363},{ 9}}, {{235},{ 9}}, -{{491},{ 9}}, {{ 27},{ 9}}, {{283},{ 9}}, {{155},{ 9}}, {{411},{ 9}}, -{{ 91},{ 9}}, {{347},{ 9}}, {{219},{ 9}}, {{475},{ 9}}, {{ 59},{ 9}}, -{{315},{ 9}}, {{187},{ 9}}, {{443},{ 9}}, {{123},{ 9}}, {{379},{ 9}}, -{{251},{ 9}}, {{507},{ 9}}, {{ 7},{ 9}}, {{263},{ 9}}, {{135},{ 9}}, -{{391},{ 9}}, {{ 71},{ 9}}, {{327},{ 9}}, {{199},{ 9}}, {{455},{ 9}}, -{{ 39},{ 9}}, {{295},{ 9}}, {{167},{ 9}}, {{423},{ 9}}, {{103},{ 9}}, -{{359},{ 9}}, {{231},{ 9}}, {{487},{ 9}}, {{ 23},{ 9}}, {{279},{ 9}}, -{{151},{ 9}}, {{407},{ 9}}, {{ 87},{ 9}}, {{343},{ 9}}, {{215},{ 9}}, -{{471},{ 9}}, {{ 55},{ 9}}, {{311},{ 9}}, {{183},{ 9}}, {{439},{ 9}}, -{{119},{ 9}}, {{375},{ 9}}, {{247},{ 9}}, {{503},{ 9}}, {{ 15},{ 9}}, -{{271},{ 9}}, {{143},{ 9}}, {{399},{ 9}}, {{ 79},{ 9}}, {{335},{ 9}}, -{{207},{ 9}}, {{463},{ 9}}, {{ 47},{ 9}}, {{303},{ 9}}, {{175},{ 9}}, -{{431},{ 9}}, {{111},{ 9}}, {{367},{ 9}}, {{239},{ 9}}, {{495},{ 9}}, -{{ 31},{ 9}}, {{287},{ 9}}, {{159},{ 9}}, {{415},{ 9}}, {{ 95},{ 9}}, -{{351},{ 9}}, {{223},{ 9}}, {{479},{ 9}}, {{ 63},{ 9}}, {{319},{ 9}}, -{{191},{ 9}}, {{447},{ 9}}, {{127},{ 9}}, {{383},{ 9}}, {{255},{ 9}}, -{{511},{ 9}}, {{ 0},{ 7}}, {{ 64},{ 7}}, {{ 32},{ 7}}, {{ 96},{ 7}}, -{{ 16},{ 7}}, {{ 80},{ 7}}, {{ 48},{ 7}}, {{112},{ 7}}, {{ 8},{ 7}}, -{{ 72},{ 7}}, {{ 40},{ 7}}, {{104},{ 7}}, {{ 24},{ 7}}, {{ 88},{ 7}}, -{{ 56},{ 7}}, {{120},{ 7}}, {{ 4},{ 7}}, {{ 68},{ 7}}, {{ 36},{ 7}}, -{{100},{ 7}}, {{ 20},{ 7}}, {{ 84},{ 7}}, {{ 52},{ 7}}, {{116},{ 7}}, -{{ 3},{ 8}}, {{131},{ 8}}, {{ 67},{ 8}}, {{195},{ 8}}, {{ 35},{ 8}}, -{{163},{ 8}}, {{ 99},{ 8}}, {{227},{ 8}} -}; - -local const ct_data static_dtree[D_CODES] = { -{{ 0},{ 5}}, {{16},{ 5}}, {{ 8},{ 5}}, {{24},{ 5}}, {{ 4},{ 5}}, -{{20},{ 5}}, {{12},{ 5}}, {{28},{ 5}}, {{ 2},{ 5}}, {{18},{ 5}}, -{{10},{ 5}}, {{26},{ 5}}, {{ 6},{ 5}}, {{22},{ 5}}, {{14},{ 5}}, -{{30},{ 5}}, {{ 1},{ 5}}, {{17},{ 5}}, {{ 9},{ 5}}, {{25},{ 5}}, -{{ 5},{ 5}}, {{21},{ 5}}, {{13},{ 5}}, {{29},{ 5}}, {{ 3},{ 5}}, -{{19},{ 5}}, {{11},{ 5}}, {{27},{ 5}}, {{ 7},{ 5}}, {{23},{ 5}} -}; - -const uch _dist_code[DIST_CODE_LEN] = { - 0, 1, 2, 3, 4, 4, 5, 5, 6, 6, 6, 6, 7, 7, 7, 7, 8, 8, 8, 8, - 8, 8, 8, 8, 9, 9, 9, 9, 9, 9, 9, 9, 10, 10, 10, 10, 10, 10, 10, 10, -10, 10, 10, 10, 10, 10, 10, 10, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, -11, 11, 11, 11, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, -12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 13, 13, 13, 13, -13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, -13, 13, 13, 13, 13, 13, 13, 13, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, -14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, -14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, -14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 15, 15, 15, 15, 15, 15, 15, 15, -15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, -15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, -15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 0, 0, 16, 17, -18, 18, 19, 19, 20, 20, 20, 20, 21, 21, 21, 21, 22, 22, 22, 22, 22, 22, 22, 22, -23, 23, 23, 23, 23, 23, 23, 23, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, -24, 24, 24, 24, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, -26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, -26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 27, 27, 27, 27, 27, 27, 27, 27, -27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, -27, 27, 27, 27, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, -28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, -28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, -28, 28, 28, 28, 28, 28, 28, 28, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, -29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, -29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, -29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29 -}; - -const uch _length_code[MAX_MATCH-MIN_MATCH+1]= { - 0, 1, 2, 3, 4, 5, 6, 7, 8, 8, 9, 9, 10, 10, 11, 11, 12, 12, 12, 12, -13, 13, 13, 13, 14, 14, 14, 14, 15, 15, 15, 15, 16, 16, 16, 16, 16, 16, 16, 16, -17, 17, 17, 17, 17, 17, 17, 17, 18, 18, 18, 18, 18, 18, 18, 18, 19, 19, 19, 19, -19, 19, 19, 19, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, -21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 22, 22, 22, 22, -22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 23, 23, 23, 23, 23, 23, 23, 23, -23, 23, 23, 23, 23, 23, 23, 23, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, -24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, -25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, -25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 26, 26, 26, 26, 26, 26, 26, 26, -26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, -26, 26, 26, 26, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, -27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 28 -}; - -local const int base_length[LENGTH_CODES] = { -0, 1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 16, 20, 24, 28, 32, 40, 48, 56, -64, 80, 96, 112, 128, 160, 192, 224, 0 -}; - -local const int base_dist[D_CODES] = { - 0, 1, 2, 3, 4, 6, 8, 12, 16, 24, - 32, 48, 64, 96, 128, 192, 256, 384, 512, 768, - 1024, 1536, 2048, 3072, 4096, 6144, 8192, 12288, 16384, 24576 -}; - diff --git a/src/3rdParty/CxImage/zlib/uncompr.c b/src/3rdParty/CxImage/zlib/uncompr.c deleted file mode 100644 index ad6db0a67c..0000000000 --- a/src/3rdParty/CxImage/zlib/uncompr.c +++ /dev/null @@ -1,61 +0,0 @@ -/* uncompr.c -- decompress a memory buffer - * Copyright (C) 1995-2003 Jean-loup Gailly. - * For conditions of distribution and use, see copyright notice in zlib.h - */ - -/* @(#) $Id$ */ - -#define ZLIB_INTERNAL -#include "zlib.h" - -/* =========================================================================== - Decompresses the source buffer into the destination buffer. sourceLen is - the byte length of the source buffer. Upon entry, destLen is the total - size of the destination buffer, which must be large enough to hold the - entire uncompressed data. (The size of the uncompressed data must have - been saved previously by the compressor and transmitted to the decompressor - by some mechanism outside the scope of this compression library.) - Upon exit, destLen is the actual size of the compressed buffer. - This function can be used to decompress a whole file at once if the - input file is mmap'ed. - - uncompress returns Z_OK if success, Z_MEM_ERROR if there was not - enough memory, Z_BUF_ERROR if there was not enough room in the output - buffer, or Z_DATA_ERROR if the input data was corrupted. -*/ -int ZEXPORT uncompress (dest, destLen, source, sourceLen) - Bytef *dest; - uLongf *destLen; - const Bytef *source; - uLong sourceLen; -{ - z_stream stream; - int err; - - stream.next_in = (Bytef*)source; - stream.avail_in = (uInt)sourceLen; - /* Check for source > 64K on 16-bit machine: */ - if ((uLong)stream.avail_in != sourceLen) return Z_BUF_ERROR; - - stream.next_out = dest; - stream.avail_out = (uInt)*destLen; - if ((uLong)stream.avail_out != *destLen) return Z_BUF_ERROR; - - stream.zalloc = (alloc_func)0; - stream.zfree = (free_func)0; - - err = inflateInit(&stream); - if (err != Z_OK) return err; - - err = inflate(&stream, Z_FINISH); - if (err != Z_STREAM_END) { - inflateEnd(&stream); - if (err == Z_NEED_DICT || (err == Z_BUF_ERROR && stream.avail_in == 0)) - return Z_DATA_ERROR; - return err; - } - *destLen = stream.total_out; - - err = inflateEnd(&stream); - return err; -} diff --git a/src/3rdParty/CxImage/zlib/zconf.h b/src/3rdParty/CxImage/zlib/zconf.h deleted file mode 100644 index e3b0c962e3..0000000000 --- a/src/3rdParty/CxImage/zlib/zconf.h +++ /dev/null @@ -1,332 +0,0 @@ -/* zconf.h -- configuration of the zlib compression library - * Copyright (C) 1995-2005 Jean-loup Gailly. - * For conditions of distribution and use, see copyright notice in zlib.h - */ - -/* @(#) $Id$ */ - -#ifndef ZCONF_H -#define ZCONF_H - -/* - * If you *really* need a unique prefix for all types and library functions, - * compile with -DZ_PREFIX. The "standard" zlib should be compiled without it. - */ -#ifdef Z_PREFIX -# define deflateInit_ z_deflateInit_ -# define deflate z_deflate -# define deflateEnd z_deflateEnd -# define inflateInit_ z_inflateInit_ -# define inflate z_inflate -# define inflateEnd z_inflateEnd -# define deflateInit2_ z_deflateInit2_ -# define deflateSetDictionary z_deflateSetDictionary -# define deflateCopy z_deflateCopy -# define deflateReset z_deflateReset -# define deflateParams z_deflateParams -# define deflateBound z_deflateBound -# define deflatePrime z_deflatePrime -# define inflateInit2_ z_inflateInit2_ -# define inflateSetDictionary z_inflateSetDictionary -# define inflateSync z_inflateSync -# define inflateSyncPoint z_inflateSyncPoint -# define inflateCopy z_inflateCopy -# define inflateReset z_inflateReset -# define inflateBack z_inflateBack -# define inflateBackEnd z_inflateBackEnd -# define compress z_compress -# define compress2 z_compress2 -# define compressBound z_compressBound -# define uncompress z_uncompress -# define adler32 z_adler32 -# define crc32 z_crc32 -# define get_crc_table z_get_crc_table -# define zError z_zError - -# define alloc_func z_alloc_func -# define free_func z_free_func -# define in_func z_in_func -# define out_func z_out_func -# define Byte z_Byte -# define uInt z_uInt -# define uLong z_uLong -# define Bytef z_Bytef -# define charf z_charf -# define intf z_intf -# define uIntf z_uIntf -# define uLongf z_uLongf -# define voidpf z_voidpf -# define voidp z_voidp -#endif - -#if defined(__MSDOS__) && !defined(MSDOS) -# define MSDOS -#endif -#if (defined(OS_2) || defined(__OS2__)) && !defined(OS2) -# define OS2 -#endif -#if defined(_WINDOWS) && !defined(WINDOWS) -# define WINDOWS -#endif -#if defined(_WIN32) || defined(_WIN32_WCE) || defined(__WIN32__) -# ifndef WIN32 -# define WIN32 -# endif -#endif -#if (defined(MSDOS) || defined(OS2) || defined(WINDOWS)) && !defined(WIN32) -# if !defined(__GNUC__) && !defined(__FLAT__) && !defined(__386__) -# ifndef SYS16BIT -# define SYS16BIT -# endif -# endif -#endif - -/* - * Compile with -DMAXSEG_64K if the alloc function cannot allocate more - * than 64k bytes at a time (needed on systems with 16-bit int). - */ -#ifdef SYS16BIT -# define MAXSEG_64K -#endif -#ifdef MSDOS -# define UNALIGNED_OK -#endif - -#ifdef __STDC_VERSION__ -# ifndef STDC -# define STDC -# endif -# if __STDC_VERSION__ >= 199901L -# ifndef STDC99 -# define STDC99 -# endif -# endif -#endif -#if !defined(STDC) && (defined(__STDC__) || defined(__cplusplus)) -# define STDC -#endif -#if !defined(STDC) && (defined(__GNUC__) || defined(__BORLANDC__)) -# define STDC -#endif -#if !defined(STDC) && (defined(MSDOS) || defined(WINDOWS) || defined(WIN32)) -# define STDC -#endif -#if !defined(STDC) && (defined(OS2) || defined(__HOS_AIX__)) -# define STDC -#endif - -#if defined(__OS400__) && !defined(STDC) /* iSeries (formerly AS/400). */ -# define STDC -#endif - -#ifndef STDC -# ifndef const /* cannot use !defined(STDC) && !defined(const) on Mac */ -# define const /* note: need a more gentle solution here */ -# endif -#endif - -/* Some Mac compilers merge all .h files incorrectly: */ -#if defined(__MWERKS__)||defined(applec)||defined(THINK_C)||defined(__SC__) -# define NO_DUMMY_DECL -#endif - -/* Maximum value for memLevel in deflateInit2 */ -#ifndef MAX_MEM_LEVEL -# ifdef MAXSEG_64K -# define MAX_MEM_LEVEL 8 -# else -# define MAX_MEM_LEVEL 9 -# endif -#endif - -/* Maximum value for windowBits in deflateInit2 and inflateInit2. - * WARNING: reducing MAX_WBITS makes minigzip unable to extract .gz files - * created by gzip. (Files created by minigzip can still be extracted by - * gzip.) - */ -#ifndef MAX_WBITS -# define MAX_WBITS 15 /* 32K LZ77 window */ -#endif - -/* The memory requirements for deflate are (in bytes): - (1 << (windowBits+2)) + (1 << (memLevel+9)) - that is: 128K for windowBits=15 + 128K for memLevel = 8 (default values) - plus a few kilobytes for small objects. For example, if you want to reduce - the default memory requirements from 256K to 128K, compile with - make CFLAGS="-O -DMAX_WBITS=14 -DMAX_MEM_LEVEL=7" - Of course this will generally degrade compression (there's no free lunch). - - The memory requirements for inflate are (in bytes) 1 << windowBits - that is, 32K for windowBits=15 (default value) plus a few kilobytes - for small objects. -*/ - - /* Type declarations */ - -#ifndef OF /* function prototypes */ -# ifdef STDC -# define OF(args) args -# else -# define OF(args) () -# endif -#endif - -/* The following definitions for FAR are needed only for MSDOS mixed - * model programming (small or medium model with some far allocations). - * This was tested only with MSC; for other MSDOS compilers you may have - * to define NO_MEMCPY in zutil.h. If you don't need the mixed model, - * just define FAR to be empty. - */ -#ifdef SYS16BIT -# if defined(M_I86SM) || defined(M_I86MM) - /* MSC small or medium model */ -# define SMALL_MEDIUM -# ifdef _MSC_VER -# define FAR _far -# else -# define FAR far -# endif -# endif -# if (defined(__SMALL__) || defined(__MEDIUM__)) - /* Turbo C small or medium model */ -# define SMALL_MEDIUM -# ifdef __BORLANDC__ -# define FAR _far -# else -# define FAR far -# endif -# endif -#endif - -#if defined(WINDOWS) || defined(WIN32) - /* If building or using zlib as a DLL, define ZLIB_DLL. - * This is not mandatory, but it offers a little performance increase. - */ -# ifdef ZLIB_DLL -# if defined(WIN32) && (!defined(__BORLANDC__) || (__BORLANDC__ >= 0x500)) -# ifdef ZLIB_INTERNAL -# define ZEXTERN extern __declspec(dllexport) -# else -# define ZEXTERN extern __declspec(dllimport) -# endif -# endif -# endif /* ZLIB_DLL */ - /* If building or using zlib with the WINAPI/WINAPIV calling convention, - * define ZLIB_WINAPI. - * Caution: the standard ZLIB1.DLL is NOT compiled using ZLIB_WINAPI. - */ -# ifdef ZLIB_WINAPI -# ifdef FAR -# undef FAR -# endif -# include - /* No need for _export, use ZLIB.DEF instead. */ - /* For complete Windows compatibility, use WINAPI, not __stdcall. */ -# define ZEXPORT WINAPI -# ifdef WIN32 -# define ZEXPORTVA WINAPIV -# else -# define ZEXPORTVA FAR CDECL -# endif -# endif -#endif - -#if defined (__BEOS__) -# ifdef ZLIB_DLL -# ifdef ZLIB_INTERNAL -# define ZEXPORT __declspec(dllexport) -# define ZEXPORTVA __declspec(dllexport) -# else -# define ZEXPORT __declspec(dllimport) -# define ZEXPORTVA __declspec(dllimport) -# endif -# endif -#endif - -#ifndef ZEXTERN -# define ZEXTERN extern -#endif -#ifndef ZEXPORT -# define ZEXPORT -#endif -#ifndef ZEXPORTVA -# define ZEXPORTVA -#endif - -#ifndef FAR -# define FAR -#endif - -#if !defined(__MACTYPES__) -typedef unsigned char Byte; /* 8 bits */ -#endif -typedef unsigned int uInt; /* 16 bits or more */ -typedef unsigned long uLong; /* 32 bits or more */ - -#ifdef SMALL_MEDIUM - /* Borland C/C++ and some old MSC versions ignore FAR inside typedef */ -# define Bytef Byte FAR -#else - typedef Byte FAR Bytef; -#endif -typedef char FAR charf; -typedef int FAR intf; -typedef uInt FAR uIntf; -typedef uLong FAR uLongf; - -#ifdef STDC - typedef void const *voidpc; - typedef void FAR *voidpf; - typedef void *voidp; -#else - typedef Byte const *voidpc; - typedef Byte FAR *voidpf; - typedef Byte *voidp; -#endif - -#if 0 /* HAVE_UNISTD_H -- this line is updated by ./configure */ -# include /* for off_t */ -# include /* for SEEK_* and off_t */ -# ifdef VMS -# include /* for off_t */ -# endif -# define z_off_t off_t -#endif -#ifndef SEEK_SET -# define SEEK_SET 0 /* Seek from beginning of file. */ -# define SEEK_CUR 1 /* Seek from current position. */ -# define SEEK_END 2 /* Set file pointer to EOF plus "offset" */ -#endif -#ifndef z_off_t -# define z_off_t long -#endif - -#if defined(__OS400__) -# define NO_vsnprintf -#endif - -#if defined(__MVS__) -# define NO_vsnprintf -# ifdef FAR -# undef FAR -# endif -#endif - -/* MVS linker does not support external names larger than 8 bytes */ -#if defined(__MVS__) -# pragma map(deflateInit_,"DEIN") -# pragma map(deflateInit2_,"DEIN2") -# pragma map(deflateEnd,"DEEND") -# pragma map(deflateBound,"DEBND") -# pragma map(inflateInit_,"ININ") -# pragma map(inflateInit2_,"ININ2") -# pragma map(inflateEnd,"INEND") -# pragma map(inflateSync,"INSY") -# pragma map(inflateSetDictionary,"INSEDI") -# pragma map(compressBound,"CMBND") -# pragma map(inflate_table,"INTABL") -# pragma map(inflate_fast,"INFA") -# pragma map(inflate_copyright,"INCOPY") -#endif - -#endif /* ZCONF_H */ diff --git a/src/3rdParty/CxImage/zlib/zconf.in.h b/src/3rdParty/CxImage/zlib/zconf.in.h deleted file mode 100644 index e3b0c962e3..0000000000 --- a/src/3rdParty/CxImage/zlib/zconf.in.h +++ /dev/null @@ -1,332 +0,0 @@ -/* zconf.h -- configuration of the zlib compression library - * Copyright (C) 1995-2005 Jean-loup Gailly. - * For conditions of distribution and use, see copyright notice in zlib.h - */ - -/* @(#) $Id$ */ - -#ifndef ZCONF_H -#define ZCONF_H - -/* - * If you *really* need a unique prefix for all types and library functions, - * compile with -DZ_PREFIX. The "standard" zlib should be compiled without it. - */ -#ifdef Z_PREFIX -# define deflateInit_ z_deflateInit_ -# define deflate z_deflate -# define deflateEnd z_deflateEnd -# define inflateInit_ z_inflateInit_ -# define inflate z_inflate -# define inflateEnd z_inflateEnd -# define deflateInit2_ z_deflateInit2_ -# define deflateSetDictionary z_deflateSetDictionary -# define deflateCopy z_deflateCopy -# define deflateReset z_deflateReset -# define deflateParams z_deflateParams -# define deflateBound z_deflateBound -# define deflatePrime z_deflatePrime -# define inflateInit2_ z_inflateInit2_ -# define inflateSetDictionary z_inflateSetDictionary -# define inflateSync z_inflateSync -# define inflateSyncPoint z_inflateSyncPoint -# define inflateCopy z_inflateCopy -# define inflateReset z_inflateReset -# define inflateBack z_inflateBack -# define inflateBackEnd z_inflateBackEnd -# define compress z_compress -# define compress2 z_compress2 -# define compressBound z_compressBound -# define uncompress z_uncompress -# define adler32 z_adler32 -# define crc32 z_crc32 -# define get_crc_table z_get_crc_table -# define zError z_zError - -# define alloc_func z_alloc_func -# define free_func z_free_func -# define in_func z_in_func -# define out_func z_out_func -# define Byte z_Byte -# define uInt z_uInt -# define uLong z_uLong -# define Bytef z_Bytef -# define charf z_charf -# define intf z_intf -# define uIntf z_uIntf -# define uLongf z_uLongf -# define voidpf z_voidpf -# define voidp z_voidp -#endif - -#if defined(__MSDOS__) && !defined(MSDOS) -# define MSDOS -#endif -#if (defined(OS_2) || defined(__OS2__)) && !defined(OS2) -# define OS2 -#endif -#if defined(_WINDOWS) && !defined(WINDOWS) -# define WINDOWS -#endif -#if defined(_WIN32) || defined(_WIN32_WCE) || defined(__WIN32__) -# ifndef WIN32 -# define WIN32 -# endif -#endif -#if (defined(MSDOS) || defined(OS2) || defined(WINDOWS)) && !defined(WIN32) -# if !defined(__GNUC__) && !defined(__FLAT__) && !defined(__386__) -# ifndef SYS16BIT -# define SYS16BIT -# endif -# endif -#endif - -/* - * Compile with -DMAXSEG_64K if the alloc function cannot allocate more - * than 64k bytes at a time (needed on systems with 16-bit int). - */ -#ifdef SYS16BIT -# define MAXSEG_64K -#endif -#ifdef MSDOS -# define UNALIGNED_OK -#endif - -#ifdef __STDC_VERSION__ -# ifndef STDC -# define STDC -# endif -# if __STDC_VERSION__ >= 199901L -# ifndef STDC99 -# define STDC99 -# endif -# endif -#endif -#if !defined(STDC) && (defined(__STDC__) || defined(__cplusplus)) -# define STDC -#endif -#if !defined(STDC) && (defined(__GNUC__) || defined(__BORLANDC__)) -# define STDC -#endif -#if !defined(STDC) && (defined(MSDOS) || defined(WINDOWS) || defined(WIN32)) -# define STDC -#endif -#if !defined(STDC) && (defined(OS2) || defined(__HOS_AIX__)) -# define STDC -#endif - -#if defined(__OS400__) && !defined(STDC) /* iSeries (formerly AS/400). */ -# define STDC -#endif - -#ifndef STDC -# ifndef const /* cannot use !defined(STDC) && !defined(const) on Mac */ -# define const /* note: need a more gentle solution here */ -# endif -#endif - -/* Some Mac compilers merge all .h files incorrectly: */ -#if defined(__MWERKS__)||defined(applec)||defined(THINK_C)||defined(__SC__) -# define NO_DUMMY_DECL -#endif - -/* Maximum value for memLevel in deflateInit2 */ -#ifndef MAX_MEM_LEVEL -# ifdef MAXSEG_64K -# define MAX_MEM_LEVEL 8 -# else -# define MAX_MEM_LEVEL 9 -# endif -#endif - -/* Maximum value for windowBits in deflateInit2 and inflateInit2. - * WARNING: reducing MAX_WBITS makes minigzip unable to extract .gz files - * created by gzip. (Files created by minigzip can still be extracted by - * gzip.) - */ -#ifndef MAX_WBITS -# define MAX_WBITS 15 /* 32K LZ77 window */ -#endif - -/* The memory requirements for deflate are (in bytes): - (1 << (windowBits+2)) + (1 << (memLevel+9)) - that is: 128K for windowBits=15 + 128K for memLevel = 8 (default values) - plus a few kilobytes for small objects. For example, if you want to reduce - the default memory requirements from 256K to 128K, compile with - make CFLAGS="-O -DMAX_WBITS=14 -DMAX_MEM_LEVEL=7" - Of course this will generally degrade compression (there's no free lunch). - - The memory requirements for inflate are (in bytes) 1 << windowBits - that is, 32K for windowBits=15 (default value) plus a few kilobytes - for small objects. -*/ - - /* Type declarations */ - -#ifndef OF /* function prototypes */ -# ifdef STDC -# define OF(args) args -# else -# define OF(args) () -# endif -#endif - -/* The following definitions for FAR are needed only for MSDOS mixed - * model programming (small or medium model with some far allocations). - * This was tested only with MSC; for other MSDOS compilers you may have - * to define NO_MEMCPY in zutil.h. 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-############################################################################### - -Project: "zlib"=.\zlib.dsp - Package Owner=<4> - -Package=<5> -{{{ -}}} - -Package=<4> -{{{ -}}} - -############################################################################### - -Global: - -Package=<5> -{{{ -}}} - -Package=<3> -{{{ -}}} - -############################################################################### - diff --git a/src/3rdParty/CxImage/zlib/zlib.h b/src/3rdParty/CxImage/zlib/zlib.h deleted file mode 100644 index 62d0e4675b..0000000000 --- a/src/3rdParty/CxImage/zlib/zlib.h +++ /dev/null @@ -1,1357 +0,0 @@ -/* zlib.h -- interface of the 'zlib' general purpose compression library - version 1.2.3, July 18th, 2005 - - Copyright (C) 1995-2005 Jean-loup Gailly and Mark Adler - - This software is provided 'as-is', without any express or implied - warranty. In no event will the authors be held liable for any damages - arising from the use of this software. - - Permission is granted to anyone to use this software for any purpose, - including commercial applications, and to alter it and redistribute it - freely, subject to the following restrictions: - - 1. The origin of this software must not be misrepresented; you must not - claim that you wrote the original software. If you use this software - in a product, an acknowledgment in the product documentation would be - appreciated but is not required. - 2. Altered source versions must be plainly marked as such, and must not be - misrepresented as being the original software. - 3. This notice may not be removed or altered from any source distribution. - - Jean-loup Gailly Mark Adler - jloup@gzip.org madler@alumni.caltech.edu - - - The data format used by the zlib library is described by RFCs (Request for - Comments) 1950 to 1952 in the files http://www.ietf.org/rfc/rfc1950.txt - (zlib format), rfc1951.txt (deflate format) and rfc1952.txt (gzip format). -*/ - -#ifndef ZLIB_H -#define ZLIB_H - -#include "zconf.h" - -#ifdef __cplusplus -extern "C" { -#endif - -#define ZLIB_VERSION "1.2.3" -#define ZLIB_VERNUM 0x1230 - -/* - The 'zlib' compression library provides in-memory compression and - decompression functions, including integrity checks of the uncompressed - data. This version of the library supports only one compression method - (deflation) but other algorithms will be added later and will have the same - stream interface. - - Compression can be done in a single step if the buffers are large - enough (for example if an input file is mmap'ed), or can be done by - repeated calls of the compression function. In the latter case, the - application must provide more input and/or consume the output - (providing more output space) before each call. - - The compressed data format used by default by the in-memory functions is - the zlib format, which is a zlib wrapper documented in RFC 1950, wrapped - around a deflate stream, which is itself documented in RFC 1951. - - The library also supports reading and writing files in gzip (.gz) format - with an interface similar to that of stdio using the functions that start - with "gz". The gzip format is different from the zlib format. gzip is a - gzip wrapper, documented in RFC 1952, wrapped around a deflate stream. - - This library can optionally read and write gzip streams in memory as well. - - The zlib format was designed to be compact and fast for use in memory - and on communications channels. The gzip format was designed for single- - file compression on file systems, has a larger header than zlib to maintain - directory information, and uses a different, slower check method than zlib. - - The library does not install any signal handler. The decoder checks - the consistency of the compressed data, so the library should never - crash even in case of corrupted input. -*/ - -typedef voidpf (*alloc_func) OF((voidpf opaque, uInt items, uInt size)); -typedef void (*free_func) OF((voidpf opaque, voidpf address)); - -struct internal_state; - -typedef struct z_stream_s { - Bytef *next_in; /* next input byte */ - uInt avail_in; /* number of bytes available at next_in */ - uLong total_in; /* total nb of input bytes read so far */ - - Bytef *next_out; /* next output byte should be put there */ - uInt avail_out; /* remaining free space at next_out */ - uLong total_out; /* total nb of bytes output so far */ - - char *msg; /* last error message, NULL if no error */ - struct internal_state FAR *state; /* not visible by applications */ - - alloc_func zalloc; /* used to allocate the internal state */ - free_func zfree; /* used to free the internal state */ - voidpf opaque; /* private data object passed to zalloc and zfree */ - - int data_type; /* best guess about the data type: binary or text */ - uLong adler; /* adler32 value of the uncompressed data */ - uLong reserved; /* reserved for future use */ -} z_stream; - -typedef z_stream FAR *z_streamp; - -/* - gzip header information passed to and from zlib routines. See RFC 1952 - for more details on the meanings of these fields. -*/ -typedef struct gz_header_s { - int text; /* true if compressed data believed to be text */ - uLong time; /* modification time */ - int xflags; /* extra flags (not used when writing a gzip file) */ - int os; /* operating system */ - Bytef *extra; /* pointer to extra field or Z_NULL if none */ - uInt extra_len; /* extra field length (valid if extra != Z_NULL) */ - uInt extra_max; /* space at extra (only when reading header) */ - Bytef *name; /* pointer to zero-terminated file name or Z_NULL */ - uInt name_max; /* space at name (only when reading header) */ - Bytef *comment; /* pointer to zero-terminated comment or Z_NULL */ - uInt comm_max; /* space at comment (only when reading header) */ - int hcrc; /* true if there was or will be a header crc */ - int done; /* true when done reading gzip header (not used - when writing a gzip file) */ -} gz_header; - -typedef gz_header FAR *gz_headerp; - -/* - The application must update next_in and avail_in when avail_in has - dropped to zero. It must update next_out and avail_out when avail_out - has dropped to zero. The application must initialize zalloc, zfree and - opaque before calling the init function. All other fields are set by the - compression library and must not be updated by the application. - - The opaque value provided by the application will be passed as the first - parameter for calls of zalloc and zfree. This can be useful for custom - memory management. The compression library attaches no meaning to the - opaque value. - - zalloc must return Z_NULL if there is not enough memory for the object. - If zlib is used in a multi-threaded application, zalloc and zfree must be - thread safe. - - On 16-bit systems, the functions zalloc and zfree must be able to allocate - exactly 65536 bytes, but will not be required to allocate more than this - if the symbol MAXSEG_64K is defined (see zconf.h). WARNING: On MSDOS, - pointers returned by zalloc for objects of exactly 65536 bytes *must* - have their offset normalized to zero. The default allocation function - provided by this library ensures this (see zutil.c). To reduce memory - requirements and avoid any allocation of 64K objects, at the expense of - compression ratio, compile the library with -DMAX_WBITS=14 (see zconf.h). - - The fields total_in and total_out can be used for statistics or - progress reports. After compression, total_in holds the total size of - the uncompressed data and may be saved for use in the decompressor - (particularly if the decompressor wants to decompress everything in - a single step). -*/ - - /* constants */ - -#define Z_NO_FLUSH 0 -#define Z_PARTIAL_FLUSH 1 /* will be removed, use Z_SYNC_FLUSH instead */ -#define Z_SYNC_FLUSH 2 -#define Z_FULL_FLUSH 3 -#define Z_FINISH 4 -#define Z_BLOCK 5 -/* Allowed flush values; see deflate() and inflate() below for details */ - -#define Z_OK 0 -#define Z_STREAM_END 1 -#define Z_NEED_DICT 2 -#define Z_ERRNO (-1) -#define Z_STREAM_ERROR (-2) -#define Z_DATA_ERROR (-3) -#define Z_MEM_ERROR (-4) -#define Z_BUF_ERROR (-5) -#define Z_VERSION_ERROR (-6) -/* Return codes for the compression/decompression functions. Negative - * values are errors, positive values are used for special but normal events. - */ - -#define Z_NO_COMPRESSION 0 -#define Z_BEST_SPEED 1 -#define Z_BEST_COMPRESSION 9 -#define Z_DEFAULT_COMPRESSION (-1) -/* compression levels */ - -#define Z_FILTERED 1 -#define Z_HUFFMAN_ONLY 2 -#define Z_RLE 3 -#define Z_FIXED 4 -#define Z_DEFAULT_STRATEGY 0 -/* compression strategy; see deflateInit2() below for details */ - -#define Z_BINARY 0 -#define Z_TEXT 1 -#define Z_ASCII Z_TEXT /* for compatibility with 1.2.2 and earlier */ -#define Z_UNKNOWN 2 -/* Possible values of the data_type field (though see inflate()) */ - -#define Z_DEFLATED 8 -/* The deflate compression method (the only one supported in this version) */ - -#define Z_NULL 0 /* for initializing zalloc, zfree, opaque */ - -#define zlib_version zlibVersion() -/* for compatibility with versions < 1.0.2 */ - - /* basic functions */ - -ZEXTERN const char * ZEXPORT zlibVersion OF((void)); -/* The application can compare zlibVersion and ZLIB_VERSION for consistency. - If the first character differs, the library code actually used is - not compatible with the zlib.h header file used by the application. - This check is automatically made by deflateInit and inflateInit. - */ - -/* -ZEXTERN int ZEXPORT deflateInit OF((z_streamp strm, int level)); - - Initializes the internal stream state for compression. The fields - zalloc, zfree and opaque must be initialized before by the caller. - If zalloc and zfree are set to Z_NULL, deflateInit updates them to - use default allocation functions. - - The compression level must be Z_DEFAULT_COMPRESSION, or between 0 and 9: - 1 gives best speed, 9 gives best compression, 0 gives no compression at - all (the input data is simply copied a block at a time). - Z_DEFAULT_COMPRESSION requests a default compromise between speed and - compression (currently equivalent to level 6). - - deflateInit returns Z_OK if success, Z_MEM_ERROR if there was not - enough memory, Z_STREAM_ERROR if level is not a valid compression level, - Z_VERSION_ERROR if the zlib library version (zlib_version) is incompatible - with the version assumed by the caller (ZLIB_VERSION). - msg is set to null if there is no error message. deflateInit does not - perform any compression: this will be done by deflate(). -*/ - - -ZEXTERN int ZEXPORT deflate OF((z_streamp strm, int flush)); -/* - deflate compresses as much data as possible, and stops when the input - buffer becomes empty or the output buffer becomes full. It may introduce some - output latency (reading input without producing any output) except when - forced to flush. - - The detailed semantics are as follows. deflate performs one or both of the - following actions: - - - Compress more input starting at next_in and update next_in and avail_in - accordingly. If not all input can be processed (because there is not - enough room in the output buffer), next_in and avail_in are updated and - processing will resume at this point for the next call of deflate(). - - - Provide more output starting at next_out and update next_out and avail_out - accordingly. This action is forced if the parameter flush is non zero. - Forcing flush frequently degrades the compression ratio, so this parameter - should be set only when necessary (in interactive applications). - Some output may be provided even if flush is not set. - - Before the call of deflate(), the application should ensure that at least - one of the actions is possible, by providing more input and/or consuming - more output, and updating avail_in or avail_out accordingly; avail_out - should never be zero before the call. The application can consume the - compressed output when it wants, for example when the output buffer is full - (avail_out == 0), or after each call of deflate(). If deflate returns Z_OK - and with zero avail_out, it must be called again after making room in the - output buffer because there might be more output pending. - - Normally the parameter flush is set to Z_NO_FLUSH, which allows deflate to - decide how much data to accumualte before producing output, in order to - maximize compression. - - If the parameter flush is set to Z_SYNC_FLUSH, all pending output is - flushed to the output buffer and the output is aligned on a byte boundary, so - that the decompressor can get all input data available so far. (In particular - avail_in is zero after the call if enough output space has been provided - before the call.) Flushing may degrade compression for some compression - algorithms and so it should be used only when necessary. - - If flush is set to Z_FULL_FLUSH, all output is flushed as with - Z_SYNC_FLUSH, and the compression state is reset so that decompression can - restart from this point if previous compressed data has been damaged or if - random access is desired. Using Z_FULL_FLUSH too often can seriously degrade - compression. - - If deflate returns with avail_out == 0, this function must be called again - with the same value of the flush parameter and more output space (updated - avail_out), until the flush is complete (deflate returns with non-zero - avail_out). In the case of a Z_FULL_FLUSH or Z_SYNC_FLUSH, make sure that - avail_out is greater than six to avoid repeated flush markers due to - avail_out == 0 on return. - - If the parameter flush is set to Z_FINISH, pending input is processed, - pending output is flushed and deflate returns with Z_STREAM_END if there - was enough output space; if deflate returns with Z_OK, this function must be - called again with Z_FINISH and more output space (updated avail_out) but no - more input data, until it returns with Z_STREAM_END or an error. After - deflate has returned Z_STREAM_END, the only possible operations on the - stream are deflateReset or deflateEnd. - - Z_FINISH can be used immediately after deflateInit if all the compression - is to be done in a single step. In this case, avail_out must be at least - the value returned by deflateBound (see below). If deflate does not return - Z_STREAM_END, then it must be called again as described above. - - deflate() sets strm->adler to the adler32 checksum of all input read - so far (that is, total_in bytes). - - deflate() may update strm->data_type if it can make a good guess about - the input data type (Z_BINARY or Z_TEXT). In doubt, the data is considered - binary. This field is only for information purposes and does not affect - the compression algorithm in any manner. - - deflate() returns Z_OK if some progress has been made (more input - processed or more output produced), Z_STREAM_END if all input has been - consumed and all output has been produced (only when flush is set to - Z_FINISH), Z_STREAM_ERROR if the stream state was inconsistent (for example - if next_in or next_out was NULL), Z_BUF_ERROR if no progress is possible - (for example avail_in or avail_out was zero). Note that Z_BUF_ERROR is not - fatal, and deflate() can be called again with more input and more output - space to continue compressing. -*/ - - -ZEXTERN int ZEXPORT deflateEnd OF((z_streamp strm)); -/* - All dynamically allocated data structures for this stream are freed. - This function discards any unprocessed input and does not flush any - pending output. - - deflateEnd returns Z_OK if success, Z_STREAM_ERROR if the - stream state was inconsistent, Z_DATA_ERROR if the stream was freed - prematurely (some input or output was discarded). In the error case, - msg may be set but then points to a static string (which must not be - deallocated). -*/ - - -/* -ZEXTERN int ZEXPORT inflateInit OF((z_streamp strm)); - - Initializes the internal stream state for decompression. The fields - next_in, avail_in, zalloc, zfree and opaque must be initialized before by - the caller. If next_in is not Z_NULL and avail_in is large enough (the exact - value depends on the compression method), inflateInit determines the - compression method from the zlib header and allocates all data structures - accordingly; otherwise the allocation will be deferred to the first call of - inflate. If zalloc and zfree are set to Z_NULL, inflateInit updates them to - use default allocation functions. - - inflateInit returns Z_OK if success, Z_MEM_ERROR if there was not enough - memory, Z_VERSION_ERROR if the zlib library version is incompatible with the - version assumed by the caller. msg is set to null if there is no error - message. inflateInit does not perform any decompression apart from reading - the zlib header if present: this will be done by inflate(). (So next_in and - avail_in may be modified, but next_out and avail_out are unchanged.) -*/ - - -ZEXTERN int ZEXPORT inflate OF((z_streamp strm, int flush)); -/* - inflate decompresses as much data as possible, and stops when the input - buffer becomes empty or the output buffer becomes full. It may introduce - some output latency (reading input without producing any output) except when - forced to flush. - - The detailed semantics are as follows. inflate performs one or both of the - following actions: - - - Decompress more input starting at next_in and update next_in and avail_in - accordingly. If not all input can be processed (because there is not - enough room in the output buffer), next_in is updated and processing - will resume at this point for the next call of inflate(). - - - Provide more output starting at next_out and update next_out and avail_out - accordingly. inflate() provides as much output as possible, until there - is no more input data or no more space in the output buffer (see below - about the flush parameter). - - Before the call of inflate(), the application should ensure that at least - one of the actions is possible, by providing more input and/or consuming - more output, and updating the next_* and avail_* values accordingly. - The application can consume the uncompressed output when it wants, for - example when the output buffer is full (avail_out == 0), or after each - call of inflate(). If inflate returns Z_OK and with zero avail_out, it - must be called again after making room in the output buffer because there - might be more output pending. - - The flush parameter of inflate() can be Z_NO_FLUSH, Z_SYNC_FLUSH, - Z_FINISH, or Z_BLOCK. Z_SYNC_FLUSH requests that inflate() flush as much - output as possible to the output buffer. Z_BLOCK requests that inflate() stop - if and when it gets to the next deflate block boundary. When decoding the - zlib or gzip format, this will cause inflate() to return immediately after - the header and before the first block. When doing a raw inflate, inflate() - will go ahead and process the first block, and will return when it gets to - the end of that block, or when it runs out of data. - - The Z_BLOCK option assists in appending to or combining deflate streams. - Also to assist in this, on return inflate() will set strm->data_type to the - number of unused bits in the last byte taken from strm->next_in, plus 64 - if inflate() is currently decoding the last block in the deflate stream, - plus 128 if inflate() returned immediately after decoding an end-of-block - code or decoding the complete header up to just before the first byte of the - deflate stream. The end-of-block will not be indicated until all of the - uncompressed data from that block has been written to strm->next_out. The - number of unused bits may in general be greater than seven, except when - bit 7 of data_type is set, in which case the number of unused bits will be - less than eight. - - inflate() should normally be called until it returns Z_STREAM_END or an - error. However if all decompression is to be performed in a single step - (a single call of inflate), the parameter flush should be set to - Z_FINISH. In this case all pending input is processed and all pending - output is flushed; avail_out must be large enough to hold all the - uncompressed data. (The size of the uncompressed data may have been saved - by the compressor for this purpose.) The next operation on this stream must - be inflateEnd to deallocate the decompression state. The use of Z_FINISH - is never required, but can be used to inform inflate that a faster approach - may be used for the single inflate() call. - - In this implementation, inflate() always flushes as much output as - possible to the output buffer, and always uses the faster approach on the - first call. So the only effect of the flush parameter in this implementation - is on the return value of inflate(), as noted below, or when it returns early - because Z_BLOCK is used. - - If a preset dictionary is needed after this call (see inflateSetDictionary - below), inflate sets strm->adler to the adler32 checksum of the dictionary - chosen by the compressor and returns Z_NEED_DICT; otherwise it sets - strm->adler to the adler32 checksum of all output produced so far (that is, - total_out bytes) and returns Z_OK, Z_STREAM_END or an error code as described - below. At the end of the stream, inflate() checks that its computed adler32 - checksum is equal to that saved by the compressor and returns Z_STREAM_END - only if the checksum is correct. - - inflate() will decompress and check either zlib-wrapped or gzip-wrapped - deflate data. The header type is detected automatically. Any information - contained in the gzip header is not retained, so applications that need that - information should instead use raw inflate, see inflateInit2() below, or - inflateBack() and perform their own processing of the gzip header and - trailer. - - inflate() returns Z_OK if some progress has been made (more input processed - or more output produced), Z_STREAM_END if the end of the compressed data has - been reached and all uncompressed output has been produced, Z_NEED_DICT if a - preset dictionary is needed at this point, Z_DATA_ERROR if the input data was - corrupted (input stream not conforming to the zlib format or incorrect check - value), Z_STREAM_ERROR if the stream structure was inconsistent (for example - if next_in or next_out was NULL), Z_MEM_ERROR if there was not enough memory, - Z_BUF_ERROR if no progress is possible or if there was not enough room in the - output buffer when Z_FINISH is used. Note that Z_BUF_ERROR is not fatal, and - inflate() can be called again with more input and more output space to - continue decompressing. If Z_DATA_ERROR is returned, the application may then - call inflateSync() to look for a good compression block if a partial recovery - of the data is desired. -*/ - - -ZEXTERN int ZEXPORT inflateEnd OF((z_streamp strm)); -/* - All dynamically allocated data structures for this stream are freed. - This function discards any unprocessed input and does not flush any - pending output. - - inflateEnd returns Z_OK if success, Z_STREAM_ERROR if the stream state - was inconsistent. In the error case, msg may be set but then points to a - static string (which must not be deallocated). -*/ - - /* Advanced functions */ - -/* - The following functions are needed only in some special applications. -*/ - -/* -ZEXTERN int ZEXPORT deflateInit2 OF((z_streamp strm, - int level, - int method, - int windowBits, - int memLevel, - int strategy)); - - This is another version of deflateInit with more compression options. The - fields next_in, zalloc, zfree and opaque must be initialized before by - the caller. - - The method parameter is the compression method. It must be Z_DEFLATED in - this version of the library. - - The windowBits parameter is the base two logarithm of the window size - (the size of the history buffer). It should be in the range 8..15 for this - version of the library. Larger values of this parameter result in better - compression at the expense of memory usage. The default value is 15 if - deflateInit is used instead. - - windowBits can also be -8..-15 for raw deflate. In this case, -windowBits - determines the window size. deflate() will then generate raw deflate data - with no zlib header or trailer, and will not compute an adler32 check value. - - windowBits can also be greater than 15 for optional gzip encoding. Add - 16 to windowBits to write a simple gzip header and trailer around the - compressed data instead of a zlib wrapper. The gzip header will have no - file name, no extra data, no comment, no modification time (set to zero), - no header crc, and the operating system will be set to 255 (unknown). If a - gzip stream is being written, strm->adler is a crc32 instead of an adler32. - - The memLevel parameter specifies how much memory should be allocated - for the internal compression state. memLevel=1 uses minimum memory but - is slow and reduces compression ratio; memLevel=9 uses maximum memory - for optimal speed. The default value is 8. See zconf.h for total memory - usage as a function of windowBits and memLevel. - - The strategy parameter is used to tune the compression algorithm. Use the - value Z_DEFAULT_STRATEGY for normal data, Z_FILTERED for data produced by a - filter (or predictor), Z_HUFFMAN_ONLY to force Huffman encoding only (no - string match), or Z_RLE to limit match distances to one (run-length - encoding). Filtered data consists mostly of small values with a somewhat - random distribution. In this case, the compression algorithm is tuned to - compress them better. The effect of Z_FILTERED is to force more Huffman - coding and less string matching; it is somewhat intermediate between - Z_DEFAULT and Z_HUFFMAN_ONLY. Z_RLE is designed to be almost as fast as - Z_HUFFMAN_ONLY, but give better compression for PNG image data. The strategy - parameter only affects the compression ratio but not the correctness of the - compressed output even if it is not set appropriately. Z_FIXED prevents the - use of dynamic Huffman codes, allowing for a simpler decoder for special - applications. - - deflateInit2 returns Z_OK if success, Z_MEM_ERROR if there was not enough - memory, Z_STREAM_ERROR if a parameter is invalid (such as an invalid - method). msg is set to null if there is no error message. deflateInit2 does - not perform any compression: this will be done by deflate(). -*/ - -ZEXTERN int ZEXPORT deflateSetDictionary OF((z_streamp strm, - const Bytef *dictionary, - uInt dictLength)); -/* - Initializes the compression dictionary from the given byte sequence - without producing any compressed output. This function must be called - immediately after deflateInit, deflateInit2 or deflateReset, before any - call of deflate. The compressor and decompressor must use exactly the same - dictionary (see inflateSetDictionary). - - The dictionary should consist of strings (byte sequences) that are likely - to be encountered later in the data to be compressed, with the most commonly - used strings preferably put towards the end of the dictionary. Using a - dictionary is most useful when the data to be compressed is short and can be - predicted with good accuracy; the data can then be compressed better than - with the default empty dictionary. - - Depending on the size of the compression data structures selected by - deflateInit or deflateInit2, a part of the dictionary may in effect be - discarded, for example if the dictionary is larger than the window size in - deflate or deflate2. Thus the strings most likely to be useful should be - put at the end of the dictionary, not at the front. In addition, the - current implementation of deflate will use at most the window size minus - 262 bytes of the provided dictionary. - - Upon return of this function, strm->adler is set to the adler32 value - of the dictionary; the decompressor may later use this value to determine - which dictionary has been used by the compressor. (The adler32 value - applies to the whole dictionary even if only a subset of the dictionary is - actually used by the compressor.) If a raw deflate was requested, then the - adler32 value is not computed and strm->adler is not set. - - deflateSetDictionary returns Z_OK if success, or Z_STREAM_ERROR if a - parameter is invalid (such as NULL dictionary) or the stream state is - inconsistent (for example if deflate has already been called for this stream - or if the compression method is bsort). deflateSetDictionary does not - perform any compression: this will be done by deflate(). -*/ - -ZEXTERN int ZEXPORT deflateCopy OF((z_streamp dest, - z_streamp source)); -/* - Sets the destination stream as a complete copy of the source stream. - - This function can be useful when several compression strategies will be - tried, for example when there are several ways of pre-processing the input - data with a filter. The streams that will be discarded should then be freed - by calling deflateEnd. Note that deflateCopy duplicates the internal - compression state which can be quite large, so this strategy is slow and - can consume lots of memory. - - deflateCopy returns Z_OK if success, Z_MEM_ERROR if there was not - enough memory, Z_STREAM_ERROR if the source stream state was inconsistent - (such as zalloc being NULL). msg is left unchanged in both source and - destination. -*/ - -ZEXTERN int ZEXPORT deflateReset OF((z_streamp strm)); -/* - This function is equivalent to deflateEnd followed by deflateInit, - but does not free and reallocate all the internal compression state. - The stream will keep the same compression level and any other attributes - that may have been set by deflateInit2. - - deflateReset returns Z_OK if success, or Z_STREAM_ERROR if the source - stream state was inconsistent (such as zalloc or state being NULL). -*/ - -ZEXTERN int ZEXPORT deflateParams OF((z_streamp strm, - int level, - int strategy)); -/* - Dynamically update the compression level and compression strategy. The - interpretation of level and strategy is as in deflateInit2. This can be - used to switch between compression and straight copy of the input data, or - to switch to a different kind of input data requiring a different - strategy. If the compression level is changed, the input available so far - is compressed with the old level (and may be flushed); the new level will - take effect only at the next call of deflate(). - - Before the call of deflateParams, the stream state must be set as for - a call of deflate(), since the currently available input may have to - be compressed and flushed. In particular, strm->avail_out must be non-zero. - - deflateParams returns Z_OK if success, Z_STREAM_ERROR if the source - stream state was inconsistent or if a parameter was invalid, Z_BUF_ERROR - if strm->avail_out was zero. -*/ - -ZEXTERN int ZEXPORT deflateTune OF((z_streamp strm, - int good_length, - int max_lazy, - int nice_length, - int max_chain)); -/* - Fine tune deflate's internal compression parameters. This should only be - used by someone who understands the algorithm used by zlib's deflate for - searching for the best matching string, and even then only by the most - fanatic optimizer trying to squeeze out the last compressed bit for their - specific input data. Read the deflate.c source code for the meaning of the - max_lazy, good_length, nice_length, and max_chain parameters. - - deflateTune() can be called after deflateInit() or deflateInit2(), and - returns Z_OK on success, or Z_STREAM_ERROR for an invalid deflate stream. - */ - -ZEXTERN uLong ZEXPORT deflateBound OF((z_streamp strm, - uLong sourceLen)); -/* - deflateBound() returns an upper bound on the compressed size after - deflation of sourceLen bytes. It must be called after deflateInit() - or deflateInit2(). This would be used to allocate an output buffer - for deflation in a single pass, and so would be called before deflate(). -*/ - -ZEXTERN int ZEXPORT deflatePrime OF((z_streamp strm, - int bits, - int value)); -/* - deflatePrime() inserts bits in the deflate output stream. The intent - is that this function is used to start off the deflate output with the - bits leftover from a previous deflate stream when appending to it. As such, - this function can only be used for raw deflate, and must be used before the - first deflate() call after a deflateInit2() or deflateReset(). bits must be - less than or equal to 16, and that many of the least significant bits of - value will be inserted in the output. - - deflatePrime returns Z_OK if success, or Z_STREAM_ERROR if the source - stream state was inconsistent. -*/ - -ZEXTERN int ZEXPORT deflateSetHeader OF((z_streamp strm, - gz_headerp head)); -/* - deflateSetHeader() provides gzip header information for when a gzip - stream is requested by deflateInit2(). deflateSetHeader() may be called - after deflateInit2() or deflateReset() and before the first call of - deflate(). The text, time, os, extra field, name, and comment information - in the provided gz_header structure are written to the gzip header (xflag is - ignored -- the extra flags are set according to the compression level). The - caller must assure that, if not Z_NULL, name and comment are terminated with - a zero byte, and that if extra is not Z_NULL, that extra_len bytes are - available there. If hcrc is true, a gzip header crc is included. Note that - the current versions of the command-line version of gzip (up through version - 1.3.x) do not support header crc's, and will report that it is a "multi-part - gzip file" and give up. - - If deflateSetHeader is not used, the default gzip header has text false, - the time set to zero, and os set to 255, with no extra, name, or comment - fields. The gzip header is returned to the default state by deflateReset(). - - deflateSetHeader returns Z_OK if success, or Z_STREAM_ERROR if the source - stream state was inconsistent. -*/ - -/* -ZEXTERN int ZEXPORT inflateInit2 OF((z_streamp strm, - int windowBits)); - - This is another version of inflateInit with an extra parameter. The - fields next_in, avail_in, zalloc, zfree and opaque must be initialized - before by the caller. - - The windowBits parameter is the base two logarithm of the maximum window - size (the size of the history buffer). It should be in the range 8..15 for - this version of the library. The default value is 15 if inflateInit is used - instead. windowBits must be greater than or equal to the windowBits value - provided to deflateInit2() while compressing, or it must be equal to 15 if - deflateInit2() was not used. If a compressed stream with a larger window - size is given as input, inflate() will return with the error code - Z_DATA_ERROR instead of trying to allocate a larger window. - - windowBits can also be -8..-15 for raw inflate. In this case, -windowBits - determines the window size. inflate() will then process raw deflate data, - not looking for a zlib or gzip header, not generating a check value, and not - looking for any check values for comparison at the end of the stream. This - is for use with other formats that use the deflate compressed data format - such as zip. Those formats provide their own check values. If a custom - format is developed using the raw deflate format for compressed data, it is - recommended that a check value such as an adler32 or a crc32 be applied to - the uncompressed data as is done in the zlib, gzip, and zip formats. For - most applications, the zlib format should be used as is. Note that comments - above on the use in deflateInit2() applies to the magnitude of windowBits. - - windowBits can also be greater than 15 for optional gzip decoding. Add - 32 to windowBits to enable zlib and gzip decoding with automatic header - detection, or add 16 to decode only the gzip format (the zlib format will - return a Z_DATA_ERROR). If a gzip stream is being decoded, strm->adler is - a crc32 instead of an adler32. - - inflateInit2 returns Z_OK if success, Z_MEM_ERROR if there was not enough - memory, Z_STREAM_ERROR if a parameter is invalid (such as a null strm). msg - is set to null if there is no error message. inflateInit2 does not perform - any decompression apart from reading the zlib header if present: this will - be done by inflate(). (So next_in and avail_in may be modified, but next_out - and avail_out are unchanged.) -*/ - -ZEXTERN int ZEXPORT inflateSetDictionary OF((z_streamp strm, - const Bytef *dictionary, - uInt dictLength)); -/* - Initializes the decompression dictionary from the given uncompressed byte - sequence. This function must be called immediately after a call of inflate, - if that call returned Z_NEED_DICT. The dictionary chosen by the compressor - can be determined from the adler32 value returned by that call of inflate. - The compressor and decompressor must use exactly the same dictionary (see - deflateSetDictionary). For raw inflate, this function can be called - immediately after inflateInit2() or inflateReset() and before any call of - inflate() to set the dictionary. The application must insure that the - dictionary that was used for compression is provided. - - inflateSetDictionary returns Z_OK if success, Z_STREAM_ERROR if a - parameter is invalid (such as NULL dictionary) or the stream state is - inconsistent, Z_DATA_ERROR if the given dictionary doesn't match the - expected one (incorrect adler32 value). inflateSetDictionary does not - perform any decompression: this will be done by subsequent calls of - inflate(). -*/ - -ZEXTERN int ZEXPORT inflateSync OF((z_streamp strm)); -/* - Skips invalid compressed data until a full flush point (see above the - description of deflate with Z_FULL_FLUSH) can be found, or until all - available input is skipped. No output is provided. - - inflateSync returns Z_OK if a full flush point has been found, Z_BUF_ERROR - if no more input was provided, Z_DATA_ERROR if no flush point has been found, - or Z_STREAM_ERROR if the stream structure was inconsistent. In the success - case, the application may save the current current value of total_in which - indicates where valid compressed data was found. In the error case, the - application may repeatedly call inflateSync, providing more input each time, - until success or end of the input data. -*/ - -ZEXTERN int ZEXPORT inflateCopy OF((z_streamp dest, - z_streamp source)); -/* - Sets the destination stream as a complete copy of the source stream. - - This function can be useful when randomly accessing a large stream. The - first pass through the stream can periodically record the inflate state, - allowing restarting inflate at those points when randomly accessing the - stream. - - inflateCopy returns Z_OK if success, Z_MEM_ERROR if there was not - enough memory, Z_STREAM_ERROR if the source stream state was inconsistent - (such as zalloc being NULL). msg is left unchanged in both source and - destination. -*/ - -ZEXTERN int ZEXPORT inflateReset OF((z_streamp strm)); -/* - This function is equivalent to inflateEnd followed by inflateInit, - but does not free and reallocate all the internal decompression state. - The stream will keep attributes that may have been set by inflateInit2. - - inflateReset returns Z_OK if success, or Z_STREAM_ERROR if the source - stream state was inconsistent (such as zalloc or state being NULL). -*/ - -ZEXTERN int ZEXPORT inflatePrime OF((z_streamp strm, - int bits, - int value)); -/* - This function inserts bits in the inflate input stream. The intent is - that this function is used to start inflating at a bit position in the - middle of a byte. The provided bits will be used before any bytes are used - from next_in. This function should only be used with raw inflate, and - should be used before the first inflate() call after inflateInit2() or - inflateReset(). bits must be less than or equal to 16, and that many of the - least significant bits of value will be inserted in the input. - - inflatePrime returns Z_OK if success, or Z_STREAM_ERROR if the source - stream state was inconsistent. -*/ - -ZEXTERN int ZEXPORT inflateGetHeader OF((z_streamp strm, - gz_headerp head)); -/* - inflateGetHeader() requests that gzip header information be stored in the - provided gz_header structure. inflateGetHeader() may be called after - inflateInit2() or inflateReset(), and before the first call of inflate(). - As inflate() processes the gzip stream, head->done is zero until the header - is completed, at which time head->done is set to one. If a zlib stream is - being decoded, then head->done is set to -1 to indicate that there will be - no gzip header information forthcoming. Note that Z_BLOCK can be used to - force inflate() to return immediately after header processing is complete - and before any actual data is decompressed. - - The text, time, xflags, and os fields are filled in with the gzip header - contents. hcrc is set to true if there is a header CRC. (The header CRC - was valid if done is set to one.) If extra is not Z_NULL, then extra_max - contains the maximum number of bytes to write to extra. Once done is true, - extra_len contains the actual extra field length, and extra contains the - extra field, or that field truncated if extra_max is less than extra_len. - If name is not Z_NULL, then up to name_max characters are written there, - terminated with a zero unless the length is greater than name_max. If - comment is not Z_NULL, then up to comm_max characters are written there, - terminated with a zero unless the length is greater than comm_max. When - any of extra, name, or comment are not Z_NULL and the respective field is - not present in the header, then that field is set to Z_NULL to signal its - absence. This allows the use of deflateSetHeader() with the returned - structure to duplicate the header. However if those fields are set to - allocated memory, then the application will need to save those pointers - elsewhere so that they can be eventually freed. - - If inflateGetHeader is not used, then the header information is simply - discarded. The header is always checked for validity, including the header - CRC if present. inflateReset() will reset the process to discard the header - information. The application would need to call inflateGetHeader() again to - retrieve the header from the next gzip stream. - - inflateGetHeader returns Z_OK if success, or Z_STREAM_ERROR if the source - stream state was inconsistent. -*/ - -/* -ZEXTERN int ZEXPORT inflateBackInit OF((z_streamp strm, int windowBits, - unsigned char FAR *window)); - - Initialize the internal stream state for decompression using inflateBack() - calls. The fields zalloc, zfree and opaque in strm must be initialized - before the call. If zalloc and zfree are Z_NULL, then the default library- - derived memory allocation routines are used. windowBits is the base two - logarithm of the window size, in the range 8..15. window is a caller - supplied buffer of that size. Except for special applications where it is - assured that deflate was used with small window sizes, windowBits must be 15 - and a 32K byte window must be supplied to be able to decompress general - deflate streams. - - See inflateBack() for the usage of these routines. - - inflateBackInit will return Z_OK on success, Z_STREAM_ERROR if any of - the paramaters are invalid, Z_MEM_ERROR if the internal state could not - be allocated, or Z_VERSION_ERROR if the version of the library does not - match the version of the header file. -*/ - -typedef unsigned (*in_func) OF((void FAR *, unsigned char FAR * FAR *)); -typedef int (*out_func) OF((void FAR *, unsigned char FAR *, unsigned)); - -ZEXTERN int ZEXPORT inflateBack OF((z_streamp strm, - in_func in, void FAR *in_desc, - out_func out, void FAR *out_desc)); -/* - inflateBack() does a raw inflate with a single call using a call-back - interface for input and output. This is more efficient than inflate() for - file i/o applications in that it avoids copying between the output and the - sliding window by simply making the window itself the output buffer. This - function trusts the application to not change the output buffer passed by - the output function, at least until inflateBack() returns. - - inflateBackInit() must be called first to allocate the internal state - and to initialize the state with the user-provided window buffer. - inflateBack() may then be used multiple times to inflate a complete, raw - deflate stream with each call. inflateBackEnd() is then called to free - the allocated state. - - A raw deflate stream is one with no zlib or gzip header or trailer. - This routine would normally be used in a utility that reads zip or gzip - files and writes out uncompressed files. The utility would decode the - header and process the trailer on its own, hence this routine expects - only the raw deflate stream to decompress. This is different from the - normal behavior of inflate(), which expects either a zlib or gzip header and - trailer around the deflate stream. - - inflateBack() uses two subroutines supplied by the caller that are then - called by inflateBack() for input and output. inflateBack() calls those - routines until it reads a complete deflate stream and writes out all of the - uncompressed data, or until it encounters an error. The function's - parameters and return types are defined above in the in_func and out_func - typedefs. inflateBack() will call in(in_desc, &buf) which should return the - number of bytes of provided input, and a pointer to that input in buf. If - there is no input available, in() must return zero--buf is ignored in that - case--and inflateBack() will return a buffer error. inflateBack() will call - out(out_desc, buf, len) to write the uncompressed data buf[0..len-1]. out() - should return zero on success, or non-zero on failure. If out() returns - non-zero, inflateBack() will return with an error. Neither in() nor out() - are permitted to change the contents of the window provided to - inflateBackInit(), which is also the buffer that out() uses to write from. - The length written by out() will be at most the window size. Any non-zero - amount of input may be provided by in(). - - For convenience, inflateBack() can be provided input on the first call by - setting strm->next_in and strm->avail_in. If that input is exhausted, then - in() will be called. Therefore strm->next_in must be initialized before - calling inflateBack(). If strm->next_in is Z_NULL, then in() will be called - immediately for input. If strm->next_in is not Z_NULL, then strm->avail_in - must also be initialized, and then if strm->avail_in is not zero, input will - initially be taken from strm->next_in[0 .. strm->avail_in - 1]. - - The in_desc and out_desc parameters of inflateBack() is passed as the - first parameter of in() and out() respectively when they are called. These - descriptors can be optionally used to pass any information that the caller- - supplied in() and out() functions need to do their job. - - On return, inflateBack() will set strm->next_in and strm->avail_in to - pass back any unused input that was provided by the last in() call. The - return values of inflateBack() can be Z_STREAM_END on success, Z_BUF_ERROR - if in() or out() returned an error, Z_DATA_ERROR if there was a format - error in the deflate stream (in which case strm->msg is set to indicate the - nature of the error), or Z_STREAM_ERROR if the stream was not properly - initialized. In the case of Z_BUF_ERROR, an input or output error can be - distinguished using strm->next_in which will be Z_NULL only if in() returned - an error. If strm->next is not Z_NULL, then the Z_BUF_ERROR was due to - out() returning non-zero. (in() will always be called before out(), so - strm->next_in is assured to be defined if out() returns non-zero.) Note - that inflateBack() cannot return Z_OK. -*/ - -ZEXTERN int ZEXPORT inflateBackEnd OF((z_streamp strm)); -/* - All memory allocated by inflateBackInit() is freed. - - inflateBackEnd() returns Z_OK on success, or Z_STREAM_ERROR if the stream - state was inconsistent. -*/ - -ZEXTERN uLong ZEXPORT zlibCompileFlags OF((void)); -/* Return flags indicating compile-time options. - - Type sizes, two bits each, 00 = 16 bits, 01 = 32, 10 = 64, 11 = other: - 1.0: size of uInt - 3.2: size of uLong - 5.4: size of voidpf (pointer) - 7.6: size of z_off_t - - Compiler, assembler, and debug options: - 8: DEBUG - 9: ASMV or ASMINF -- use ASM code - 10: ZLIB_WINAPI -- exported functions use the WINAPI calling convention - 11: 0 (reserved) - - One-time table building (smaller code, but not thread-safe if true): - 12: BUILDFIXED -- build static block decoding tables when needed - 13: DYNAMIC_CRC_TABLE -- build CRC calculation tables when needed - 14,15: 0 (reserved) - - Library content (indicates missing functionality): - 16: NO_GZCOMPRESS -- gz* functions cannot compress (to avoid linking - deflate code when not needed) - 17: NO_GZIP -- deflate can't write gzip streams, and inflate can't detect - and decode gzip streams (to avoid linking crc code) - 18-19: 0 (reserved) - - Operation variations (changes in library functionality): - 20: PKZIP_BUG_WORKAROUND -- slightly more permissive inflate - 21: FASTEST -- deflate algorithm with only one, lowest compression level - 22,23: 0 (reserved) - - The sprintf variant used by gzprintf (zero is best): - 24: 0 = vs*, 1 = s* -- 1 means limited to 20 arguments after the format - 25: 0 = *nprintf, 1 = *printf -- 1 means gzprintf() not secure! - 26: 0 = returns value, 1 = void -- 1 means inferred string length returned - - Remainder: - 27-31: 0 (reserved) - */ - - - /* utility functions */ - -/* - The following utility functions are implemented on top of the - basic stream-oriented functions. To simplify the interface, some - default options are assumed (compression level and memory usage, - standard memory allocation functions). The source code of these - utility functions can easily be modified if you need special options. -*/ - -ZEXTERN int ZEXPORT compress OF((Bytef *dest, uLongf *destLen, - const Bytef *source, uLong sourceLen)); -/* - Compresses the source buffer into the destination buffer. sourceLen is - the byte length of the source buffer. Upon entry, destLen is the total - size of the destination buffer, which must be at least the value returned - by compressBound(sourceLen). Upon exit, destLen is the actual size of the - compressed buffer. - This function can be used to compress a whole file at once if the - input file is mmap'ed. - compress returns Z_OK if success, Z_MEM_ERROR if there was not - enough memory, Z_BUF_ERROR if there was not enough room in the output - buffer. -*/ - -ZEXTERN int ZEXPORT compress2 OF((Bytef *dest, uLongf *destLen, - const Bytef *source, uLong sourceLen, - int level)); -/* - Compresses the source buffer into the destination buffer. The level - parameter has the same meaning as in deflateInit. sourceLen is the byte - length of the source buffer. Upon entry, destLen is the total size of the - destination buffer, which must be at least the value returned by - compressBound(sourceLen). Upon exit, destLen is the actual size of the - compressed buffer. - - compress2 returns Z_OK if success, Z_MEM_ERROR if there was not enough - memory, Z_BUF_ERROR if there was not enough room in the output buffer, - Z_STREAM_ERROR if the level parameter is invalid. -*/ - -ZEXTERN uLong ZEXPORT compressBound OF((uLong sourceLen)); -/* - compressBound() returns an upper bound on the compressed size after - compress() or compress2() on sourceLen bytes. It would be used before - a compress() or compress2() call to allocate the destination buffer. -*/ - -ZEXTERN int ZEXPORT uncompress OF((Bytef *dest, uLongf *destLen, - const Bytef *source, uLong sourceLen)); -/* - Decompresses the source buffer into the destination buffer. sourceLen is - the byte length of the source buffer. Upon entry, destLen is the total - size of the destination buffer, which must be large enough to hold the - entire uncompressed data. (The size of the uncompressed data must have - been saved previously by the compressor and transmitted to the decompressor - by some mechanism outside the scope of this compression library.) - Upon exit, destLen is the actual size of the compressed buffer. - This function can be used to decompress a whole file at once if the - input file is mmap'ed. - - uncompress returns Z_OK if success, Z_MEM_ERROR if there was not - enough memory, Z_BUF_ERROR if there was not enough room in the output - buffer, or Z_DATA_ERROR if the input data was corrupted or incomplete. -*/ - - -typedef voidp gzFile; - -ZEXTERN gzFile ZEXPORT gzopen OF((const char *path, const char *mode)); -/* - Opens a gzip (.gz) file for reading or writing. The mode parameter - is as in fopen ("rb" or "wb") but can also include a compression level - ("wb9") or a strategy: 'f' for filtered data as in "wb6f", 'h' for - Huffman only compression as in "wb1h", or 'R' for run-length encoding - as in "wb1R". (See the description of deflateInit2 for more information - about the strategy parameter.) - - gzopen can be used to read a file which is not in gzip format; in this - case gzread will directly read from the file without decompression. - - gzopen returns NULL if the file could not be opened or if there was - insufficient memory to allocate the (de)compression state; errno - can be checked to distinguish the two cases (if errno is zero, the - zlib error is Z_MEM_ERROR). */ - -ZEXTERN gzFile ZEXPORT gzdopen OF((int fd, const char *mode)); -/* - gzdopen() associates a gzFile with the file descriptor fd. File - descriptors are obtained from calls like open, dup, creat, pipe or - fileno (in the file has been previously opened with fopen). - The mode parameter is as in gzopen. - The next call of gzclose on the returned gzFile will also close the - file descriptor fd, just like fclose(fdopen(fd), mode) closes the file - descriptor fd. If you want to keep fd open, use gzdopen(dup(fd), mode). - gzdopen returns NULL if there was insufficient memory to allocate - the (de)compression state. -*/ - -ZEXTERN int ZEXPORT gzsetparams OF((gzFile file, int level, int strategy)); -/* - Dynamically update the compression level or strategy. See the description - of deflateInit2 for the meaning of these parameters. - gzsetparams returns Z_OK if success, or Z_STREAM_ERROR if the file was not - opened for writing. -*/ - -ZEXTERN int ZEXPORT gzread OF((gzFile file, voidp buf, unsigned len)); -/* - Reads the given number of uncompressed bytes from the compressed file. - If the input file was not in gzip format, gzread copies the given number - of bytes into the buffer. - gzread returns the number of uncompressed bytes actually read (0 for - end of file, -1 for error). */ - -ZEXTERN int ZEXPORT gzwrite OF((gzFile file, - voidpc buf, unsigned len)); -/* - Writes the given number of uncompressed bytes into the compressed file. - gzwrite returns the number of uncompressed bytes actually written - (0 in case of error). -*/ - -ZEXTERN int ZEXPORTVA gzprintf OF((gzFile file, const char *format, ...)); -/* - Converts, formats, and writes the args to the compressed file under - control of the format string, as in fprintf. gzprintf returns the number of - uncompressed bytes actually written (0 in case of error). The number of - uncompressed bytes written is limited to 4095. The caller should assure that - this limit is not exceeded. If it is exceeded, then gzprintf() will return - return an error (0) with nothing written. In this case, there may also be a - buffer overflow with unpredictable consequences, which is possible only if - zlib was compiled with the insecure functions sprintf() or vsprintf() - because the secure snprintf() or vsnprintf() functions were not available. -*/ - -ZEXTERN int ZEXPORT gzputs OF((gzFile file, const char *s)); -/* - Writes the given null-terminated string to the compressed file, excluding - the terminating null character. - gzputs returns the number of characters written, or -1 in case of error. -*/ - -ZEXTERN char * ZEXPORT gzgets OF((gzFile file, char *buf, int len)); -/* - Reads bytes from the compressed file until len-1 characters are read, or - a newline character is read and transferred to buf, or an end-of-file - condition is encountered. The string is then terminated with a null - character. - gzgets returns buf, or Z_NULL in case of error. -*/ - -ZEXTERN int ZEXPORT gzputc OF((gzFile file, int c)); -/* - Writes c, converted to an unsigned char, into the compressed file. - gzputc returns the value that was written, or -1 in case of error. -*/ - -ZEXTERN int ZEXPORT gzgetc OF((gzFile file)); -/* - Reads one byte from the compressed file. gzgetc returns this byte - or -1 in case of end of file or error. -*/ - -ZEXTERN int ZEXPORT gzungetc OF((int c, gzFile file)); -/* - Push one character back onto the stream to be read again later. - Only one character of push-back is allowed. gzungetc() returns the - character pushed, or -1 on failure. gzungetc() will fail if a - character has been pushed but not read yet, or if c is -1. The pushed - character will be discarded if the stream is repositioned with gzseek() - or gzrewind(). -*/ - -ZEXTERN int ZEXPORT gzflush OF((gzFile file, int flush)); -/* - Flushes all pending output into the compressed file. The parameter - flush is as in the deflate() function. The return value is the zlib - error number (see function gzerror below). gzflush returns Z_OK if - the flush parameter is Z_FINISH and all output could be flushed. - gzflush should be called only when strictly necessary because it can - degrade compression. -*/ - -ZEXTERN z_off_t ZEXPORT gzseek OF((gzFile file, - z_off_t offset, int whence)); -/* - Sets the starting position for the next gzread or gzwrite on the - given compressed file. The offset represents a number of bytes in the - uncompressed data stream. The whence parameter is defined as in lseek(2); - the value SEEK_END is not supported. - If the file is opened for reading, this function is emulated but can be - extremely slow. If the file is opened for writing, only forward seeks are - supported; gzseek then compresses a sequence of zeroes up to the new - starting position. - - gzseek returns the resulting offset location as measured in bytes from - the beginning of the uncompressed stream, or -1 in case of error, in - particular if the file is opened for writing and the new starting position - would be before the current position. -*/ - -ZEXTERN int ZEXPORT gzrewind OF((gzFile file)); -/* - Rewinds the given file. This function is supported only for reading. - - gzrewind(file) is equivalent to (int)gzseek(file, 0L, SEEK_SET) -*/ - -ZEXTERN z_off_t ZEXPORT gztell OF((gzFile file)); -/* - Returns the starting position for the next gzread or gzwrite on the - given compressed file. This position represents a number of bytes in the - uncompressed data stream. - - gztell(file) is equivalent to gzseek(file, 0L, SEEK_CUR) -*/ - -ZEXTERN int ZEXPORT gzeof OF((gzFile file)); -/* - Returns 1 when EOF has previously been detected reading the given - input stream, otherwise zero. -*/ - -ZEXTERN int ZEXPORT gzdirect OF((gzFile file)); -/* - Returns 1 if file is being read directly without decompression, otherwise - zero. -*/ - -ZEXTERN int ZEXPORT gzclose OF((gzFile file)); -/* - Flushes all pending output if necessary, closes the compressed file - and deallocates all the (de)compression state. The return value is the zlib - error number (see function gzerror below). -*/ - -ZEXTERN const char * ZEXPORT gzerror OF((gzFile file, int *errnum)); -/* - Returns the error message for the last error which occurred on the - given compressed file. errnum is set to zlib error number. If an - error occurred in the file system and not in the compression library, - errnum is set to Z_ERRNO and the application may consult errno - to get the exact error code. -*/ - -ZEXTERN void ZEXPORT gzclearerr OF((gzFile file)); -/* - Clears the error and end-of-file flags for file. This is analogous to the - clearerr() function in stdio. This is useful for continuing to read a gzip - file that is being written concurrently. -*/ - - /* checksum functions */ - -/* - These functions are not related to compression but are exported - anyway because they might be useful in applications using the - compression library. -*/ - -ZEXTERN uLong ZEXPORT adler32 OF((uLong adler, const Bytef *buf, uInt len)); -/* - Update a running Adler-32 checksum with the bytes buf[0..len-1] and - return the updated checksum. If buf is NULL, this function returns - the required initial value for the checksum. - An Adler-32 checksum is almost as reliable as a CRC32 but can be computed - much faster. Usage example: - - uLong adler = adler32(0L, Z_NULL, 0); - - while (read_buffer(buffer, length) != EOF) { - adler = adler32(adler, buffer, length); - } - if (adler != original_adler) error(); -*/ - -ZEXTERN uLong ZEXPORT adler32_combine OF((uLong adler1, uLong adler2, - z_off_t len2)); -/* - Combine two Adler-32 checksums into one. For two sequences of bytes, seq1 - and seq2 with lengths len1 and len2, Adler-32 checksums were calculated for - each, adler1 and adler2. adler32_combine() returns the Adler-32 checksum of - seq1 and seq2 concatenated, requiring only adler1, adler2, and len2. -*/ - -ZEXTERN uLong ZEXPORT crc32 OF((uLong crc, const Bytef *buf, uInt len)); -/* - Update a running CRC-32 with the bytes buf[0..len-1] and return the - updated CRC-32. If buf is NULL, this function returns the required initial - value for the for the crc. Pre- and post-conditioning (one's complement) is - performed within this function so it shouldn't be done by the application. - Usage example: - - uLong crc = crc32(0L, Z_NULL, 0); - - while (read_buffer(buffer, length) != EOF) { - crc = crc32(crc, buffer, length); - } - if (crc != original_crc) error(); -*/ - -ZEXTERN uLong ZEXPORT crc32_combine OF((uLong crc1, uLong crc2, z_off_t len2)); - -/* - Combine two CRC-32 check values into one. For two sequences of bytes, - seq1 and seq2 with lengths len1 and len2, CRC-32 check values were - calculated for each, crc1 and crc2. crc32_combine() returns the CRC-32 - check value of seq1 and seq2 concatenated, requiring only crc1, crc2, and - len2. -*/ - - - /* various hacks, don't look :) */ - -/* deflateInit and inflateInit are macros to allow checking the zlib version - * and the compiler's view of z_stream: - */ -ZEXTERN int ZEXPORT deflateInit_ OF((z_streamp strm, int level, - const char *version, int stream_size)); -ZEXTERN int ZEXPORT inflateInit_ OF((z_streamp strm, - const char *version, int stream_size)); -ZEXTERN int ZEXPORT deflateInit2_ OF((z_streamp strm, int level, int method, - int windowBits, int memLevel, - int strategy, const char *version, - int stream_size)); -ZEXTERN int ZEXPORT inflateInit2_ OF((z_streamp strm, int windowBits, - const char *version, int stream_size)); -ZEXTERN int ZEXPORT inflateBackInit_ OF((z_streamp strm, int windowBits, - unsigned char FAR *window, - const char *version, - int stream_size)); -#define deflateInit(strm, level) \ - deflateInit_((strm), (level), ZLIB_VERSION, sizeof(z_stream)) -#define inflateInit(strm) \ - inflateInit_((strm), ZLIB_VERSION, sizeof(z_stream)) -#define deflateInit2(strm, level, method, windowBits, memLevel, strategy) \ - deflateInit2_((strm),(level),(method),(windowBits),(memLevel),\ - (strategy), ZLIB_VERSION, sizeof(z_stream)) -#define inflateInit2(strm, windowBits) \ - inflateInit2_((strm), (windowBits), ZLIB_VERSION, sizeof(z_stream)) -#define inflateBackInit(strm, windowBits, window) \ - inflateBackInit_((strm), (windowBits), (window), \ - ZLIB_VERSION, sizeof(z_stream)) - - -#if !defined(ZUTIL_H) && !defined(NO_DUMMY_DECL) - struct internal_state {int dummy;}; /* hack for buggy compilers */ -#endif - -ZEXTERN const char * ZEXPORT zError OF((int)); -ZEXTERN int ZEXPORT inflateSyncPoint OF((z_streamp z)); -ZEXTERN const uLongf * ZEXPORT get_crc_table OF((void)); - -#ifdef __cplusplus -} -#endif - -#endif /* ZLIB_H */ diff --git a/src/3rdParty/CxImage/zlib/zlib.vcproj b/src/3rdParty/CxImage/zlib/zlib.vcproj deleted file mode 100644 index ac0929782b..0000000000 --- a/src/3rdParty/CxImage/zlib/zlib.vcproj +++ /dev/null @@ -1,1481 +0,0 @@ - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - diff --git a/src/3rdParty/CxImage/zlib/zutil.c b/src/3rdParty/CxImage/zlib/zutil.c deleted file mode 100644 index 0f4bd7871d..0000000000 --- a/src/3rdParty/CxImage/zlib/zutil.c +++ /dev/null @@ -1,318 +0,0 @@ -/* zutil.c -- target dependent utility functions for the compression library - * Copyright (C) 1995-2005 Jean-loup Gailly. - * For conditions of distribution and use, see copyright notice in zlib.h - */ - -/* @(#) $Id$ */ - -#include "zutil.h" - -#ifndef NO_DUMMY_DECL -struct internal_state {int dummy;}; /* for buggy compilers */ -#endif - -const char * const z_errmsg[10] = { -"need dictionary", /* Z_NEED_DICT 2 */ -"stream end", /* Z_STREAM_END 1 */ -"", /* Z_OK 0 */ -"file error", /* Z_ERRNO (-1) */ -"stream error", /* Z_STREAM_ERROR (-2) */ -"data error", /* Z_DATA_ERROR (-3) */ -"insufficient memory", /* Z_MEM_ERROR (-4) */ -"buffer error", /* Z_BUF_ERROR (-5) */ -"incompatible version",/* Z_VERSION_ERROR (-6) */ -""}; - - -const char * ZEXPORT zlibVersion() -{ - return ZLIB_VERSION; -} - -uLong ZEXPORT zlibCompileFlags() -{ - uLong flags; - - flags = 0; - switch (sizeof(uInt)) { - case 2: break; - case 4: flags += 1; break; - case 8: flags += 2; break; - default: flags += 3; - } - switch (sizeof(uLong)) { - case 2: break; - case 4: flags += 1 << 2; break; - case 8: flags += 2 << 2; break; - default: flags += 3 << 2; - } - switch (sizeof(voidpf)) { - case 2: break; - case 4: flags += 1 << 4; break; - case 8: flags += 2 << 4; break; - default: flags += 3 << 4; - } - switch (sizeof(z_off_t)) { - case 2: break; - case 4: flags += 1 << 6; break; - case 8: flags += 2 << 6; break; - default: flags += 3 << 6; - } -#ifdef DEBUG - flags += 1 << 8; -#endif -#if defined(ASMV) || defined(ASMINF) - flags += 1 << 9; -#endif -#ifdef ZLIB_WINAPI - flags += 1 << 10; -#endif -#ifdef BUILDFIXED - flags += 1 << 12; -#endif -#ifdef DYNAMIC_CRC_TABLE - flags += 1 << 13; -#endif -#ifdef NO_GZCOMPRESS - flags += 1L << 16; -#endif -#ifdef NO_GZIP - flags += 1L << 17; -#endif -#ifdef PKZIP_BUG_WORKAROUND - flags += 1L << 20; -#endif -#ifdef FASTEST - flags += 1L << 21; -#endif -#ifdef STDC -# ifdef NO_vsnprintf - flags += 1L << 25; -# ifdef HAS_vsprintf_void - flags += 1L << 26; -# endif -# else -# ifdef HAS_vsnprintf_void - flags += 1L << 26; -# endif -# endif -#else - flags += 1L << 24; -# ifdef NO_snprintf - flags += 1L << 25; -# ifdef HAS_sprintf_void - flags += 1L << 26; -# endif -# else -# ifdef HAS_snprintf_void - flags += 1L << 26; -# endif -# endif -#endif - return flags; -} - -#ifdef DEBUG - -# ifndef verbose -# define verbose 0 -# endif -int z_verbose = verbose; - -void z_error (m) - char *m; -{ - fprintf(stderr, "%s\n", m); - exit(1); -} -#endif - -/* exported to allow conversion of error code to string for compress() and - * uncompress() - */ -const char * ZEXPORT zError(err) - int err; -{ - return ERR_MSG(err); -} - -#if defined(_WIN32_WCE) - /* The Microsoft C Run-Time Library for Windows CE doesn't have - * errno. We define it as a global variable to simplify porting. - * Its value is always 0 and should not be used. - */ - int errno = 0; -#endif - -#ifndef HAVE_MEMCPY - -void zmemcpy(dest, source, len) - Bytef* dest; - const Bytef* source; - uInt len; -{ - if (len == 0) return; - do { - *dest++ = *source++; /* ??? to be unrolled */ - } while (--len != 0); -} - -int zmemcmp(s1, s2, len) - const Bytef* s1; - const Bytef* s2; - uInt len; -{ - uInt j; - - for (j = 0; j < len; j++) { - if (s1[j] != s2[j]) return 2*(s1[j] > s2[j])-1; - } - return 0; -} - -void zmemzero(dest, len) - Bytef* dest; - uInt len; -{ - if (len == 0) return; - do { - *dest++ = 0; /* ??? to be unrolled */ - } while (--len != 0); -} -#endif - - -#ifdef SYS16BIT - -#ifdef __TURBOC__ -/* Turbo C in 16-bit mode */ - -# define MY_ZCALLOC - -/* Turbo C malloc() does not allow dynamic allocation of 64K bytes - * and farmalloc(64K) returns a pointer with an offset of 8, so we - * must fix the pointer. Warning: the pointer must be put back to its - * original form in order to free it, use zcfree(). - */ - -#define MAX_PTR 10 -/* 10*64K = 640K */ - -local int next_ptr = 0; - -typedef struct ptr_table_s { - voidpf org_ptr; - voidpf new_ptr; -} ptr_table; - -local ptr_table table[MAX_PTR]; -/* This table is used to remember the original form of pointers - * to large buffers (64K). Such pointers are normalized with a zero offset. - * Since MSDOS is not a preemptive multitasking OS, this table is not - * protected from concurrent access. This hack doesn't work anyway on - * a protected system like OS/2. Use Microsoft C instead. - */ - -voidpf zcalloc (voidpf opaque, unsigned items, unsigned size) -{ - voidpf buf = opaque; /* just to make some compilers happy */ - ulg bsize = (ulg)items*size; - - /* If we allocate less than 65520 bytes, we assume that farmalloc - * will return a usable pointer which doesn't have to be normalized. - */ - if (bsize < 65520L) { - buf = farmalloc(bsize); - if (*(ush*)&buf != 0) return buf; - } else { - buf = farmalloc(bsize + 16L); - } - if (buf == NULL || next_ptr >= MAX_PTR) return NULL; - table[next_ptr].org_ptr = buf; - - /* Normalize the pointer to seg:0 */ - *((ush*)&buf+1) += ((ush)((uch*)buf-0) + 15) >> 4; - *(ush*)&buf = 0; - table[next_ptr++].new_ptr = buf; - return buf; -} - -void zcfree (voidpf opaque, voidpf ptr) -{ - int n; - if (*(ush*)&ptr != 0) { /* object < 64K */ - farfree(ptr); - return; - } - /* Find the original pointer */ - for (n = 0; n < next_ptr; n++) { - if (ptr != table[n].new_ptr) continue; - - farfree(table[n].org_ptr); - while (++n < next_ptr) { - table[n-1] = table[n]; - } - next_ptr--; - return; - } - ptr = opaque; /* just to make some compilers happy */ - Assert(0, "zcfree: ptr not found"); -} - -#endif /* __TURBOC__ */ - - -#ifdef M_I86 -/* Microsoft C in 16-bit mode */ - -# define MY_ZCALLOC - -#if (!defined(_MSC_VER) || (_MSC_VER <= 600)) -# define _halloc halloc -# define _hfree hfree -#endif - -voidpf zcalloc (voidpf opaque, unsigned items, unsigned size) -{ - if (opaque) opaque = 0; /* to make compiler happy */ - return _halloc((long)items, size); -} - -void zcfree (voidpf opaque, voidpf ptr) -{ - if (opaque) opaque = 0; /* to make compiler happy */ - _hfree(ptr); -} - -#endif /* M_I86 */ - -#endif /* SYS16BIT */ - - -#ifndef MY_ZCALLOC /* Any system without a special alloc function */ - -#ifndef STDC -extern voidp malloc OF((uInt size)); -extern voidp calloc OF((uInt items, uInt size)); -extern void free OF((voidpf ptr)); -#endif - -voidpf zcalloc (opaque, items, size) - voidpf opaque; - unsigned items; - unsigned size; -{ - if (opaque) items += size - size; /* make compiler happy */ - return sizeof(uInt) > 2 ? (voidpf)malloc(items * size) : - (voidpf)calloc(items, size); -} - -void zcfree (opaque, ptr) - voidpf opaque; - voidpf ptr; -{ - free(ptr); - if (opaque) return; /* make compiler happy */ -} - -#endif /* MY_ZCALLOC */ diff --git a/src/3rdParty/CxImage/zlib/zutil.h b/src/3rdParty/CxImage/zlib/zutil.h deleted file mode 100644 index 0ba6e02087..0000000000 --- a/src/3rdParty/CxImage/zlib/zutil.h +++ /dev/null @@ -1,269 +0,0 @@ -/* zutil.h -- internal interface and configuration of the compression library - * Copyright (C) 1995-2005 Jean-loup Gailly. - * For conditions of distribution and use, see copyright notice in zlib.h - */ - -/* WARNING: this file should *not* be used by applications. It is - part of the implementation of the compression library and is - subject to change. Applications should only use zlib.h. - */ - -/* @(#) $Id$ */ - -#ifndef ZUTIL_H -#define ZUTIL_H - -#define ZLIB_INTERNAL -#include "zlib.h" - -#ifdef STDC -# ifndef _WIN32_WCE -# include -# endif -# include -# include -#endif -#ifdef NO_ERRNO_H -# ifdef _WIN32_WCE - /* The Microsoft C Run-Time Library for Windows CE doesn't have - * errno. We define it as a global variable to simplify porting. - * Its value is always 0 and should not be used. We rename it to - * avoid conflict with other libraries that use the same workaround. - */ -# define errno z_errno -# endif - extern int errno; -#else -# ifndef _WIN32_WCE -# include -# endif -#endif - -#ifndef local -# define local static -#endif -/* compile with -Dlocal if your debugger can't find static symbols */ - -typedef unsigned char uch; -typedef uch FAR uchf; -typedef unsigned short ush; -typedef ush FAR ushf; -typedef unsigned long ulg; - -extern const char * const z_errmsg[10]; /* indexed by 2-zlib_error */ -/* (size given to avoid silly warnings with Visual C++) */ - -#define ERR_MSG(err) z_errmsg[Z_NEED_DICT-(err)] - -#define ERR_RETURN(strm,err) \ - return (strm->msg = (char*)ERR_MSG(err), (err)) -/* To be used only when the state is known to be valid */ - - /* common constants */ - -#ifndef DEF_WBITS -# define DEF_WBITS MAX_WBITS -#endif -/* default windowBits for decompression. MAX_WBITS is for compression only */ - -#if MAX_MEM_LEVEL >= 8 -# define DEF_MEM_LEVEL 8 -#else -# define DEF_MEM_LEVEL MAX_MEM_LEVEL -#endif -/* default memLevel */ - -#define STORED_BLOCK 0 -#define STATIC_TREES 1 -#define DYN_TREES 2 -/* The three kinds of block type */ - -#define MIN_MATCH 3 -#define MAX_MATCH 258 -/* The minimum and maximum match lengths */ - -#define PRESET_DICT 0x20 /* preset dictionary flag in zlib header */ - - /* target dependencies */ - -#if defined(MSDOS) || (defined(WINDOWS) && !defined(WIN32)) -# define OS_CODE 0x00 -# if defined(__TURBOC__) || defined(__BORLANDC__) -# if(__STDC__ == 1) && (defined(__LARGE__) || defined(__COMPACT__)) - /* Allow compilation with ANSI keywords only enabled */ - void _Cdecl farfree( void *block ); - void *_Cdecl farmalloc( unsigned long nbytes ); -# else -# include -# endif -# else /* MSC or DJGPP */ -# include -# endif -#endif - -#ifdef AMIGA -# define OS_CODE 0x01 -#endif - -#if defined(VAXC) || defined(VMS) -# define OS_CODE 0x02 -# define F_OPEN(name, mode) \ - fopen((name), (mode), "mbc=60", "ctx=stm", "rfm=fix", "mrs=512") -#endif - -#if defined(ATARI) || defined(atarist) -# define OS_CODE 0x05 -#endif - -#ifdef OS2 -# define OS_CODE 0x06 -# ifdef M_I86 - #include -# endif -#endif - -#if defined(MACOS) || defined(TARGET_OS_MAC) -# define OS_CODE 0x07 -# if defined(__MWERKS__) && __dest_os != __be_os && __dest_os != __win32_os -# include /* for fdopen */ -# else -# ifndef fdopen -# define fdopen(fd,mode) NULL /* No fdopen() */ -# endif -# endif -#endif - -#ifdef TOPS20 -# define OS_CODE 0x0a -#endif - -#ifdef WIN32 -# ifndef __CYGWIN__ /* Cygwin is Unix, not Win32 */ -# define OS_CODE 0x0b -# endif -#endif - -#ifdef __50SERIES /* Prime/PRIMOS */ -# define OS_CODE 0x0f -#endif - -#if defined(_BEOS_) || defined(RISCOS) -# define fdopen(fd,mode) NULL /* No fdopen() */ -#endif - -#if (defined(_MSC_VER) && (_MSC_VER > 600)) -# if defined(_WIN32_WCE) -# define fdopen(fd,mode) NULL /* No fdopen() */ -# ifndef _PTRDIFF_T_DEFINED - typedef int ptrdiff_t; -# define _PTRDIFF_T_DEFINED -# endif -# else -# define fdopen(fd,type) _fdopen(fd,type) -# endif -#endif - - /* common defaults */ - -#ifndef OS_CODE -# define OS_CODE 0x03 /* assume Unix */ -#endif - -#ifndef F_OPEN -# define F_OPEN(name, mode) fopen((name), (mode)) -#endif - - /* functions */ - -#if defined(STDC99) || (defined(__TURBOC__) && __TURBOC__ >= 0x550) -# ifndef HAVE_VSNPRINTF -# define HAVE_VSNPRINTF -# endif -#endif -#if defined(__CYGWIN__) -# ifndef HAVE_VSNPRINTF -# define HAVE_VSNPRINTF -# endif -#endif -#ifndef HAVE_VSNPRINTF -# ifdef MSDOS - /* vsnprintf may exist on some MS-DOS compilers (DJGPP?), - but for now we just assume it doesn't. */ -# define NO_vsnprintf -# endif -# ifdef __TURBOC__ -# define NO_vsnprintf -# endif -# ifdef WIN32 - /* In Win32, vsnprintf is available as the "non-ANSI" _vsnprintf. */ -# if !defined(vsnprintf) && !defined(NO_vsnprintf) -# define vsnprintf _vsnprintf -# endif -# endif -# ifdef __SASC -# define NO_vsnprintf -# endif -#endif -#ifdef VMS -# define NO_vsnprintf -#endif - -#if defined(pyr) -# define NO_MEMCPY -#endif -#if defined(SMALL_MEDIUM) && !defined(_MSC_VER) && !defined(__SC__) - /* Use our own functions for small and medium model with MSC <= 5.0. - * You may have to use the same strategy for Borland C (untested). - * The __SC__ check is for Symantec. - */ -# define NO_MEMCPY -#endif -#if defined(STDC) && !defined(HAVE_MEMCPY) && !defined(NO_MEMCPY) -# define HAVE_MEMCPY -#endif -#ifdef HAVE_MEMCPY -# ifdef SMALL_MEDIUM /* MSDOS small or medium model */ -# define zmemcpy _fmemcpy -# define zmemcmp _fmemcmp -# define zmemzero(dest, len) _fmemset(dest, 0, len) -# else -# define zmemcpy memcpy -# define zmemcmp memcmp -# define zmemzero(dest, len) memset(dest, 0, len) -# endif -#else - extern void zmemcpy OF((Bytef* dest, const Bytef* source, uInt len)); - extern int zmemcmp OF((const Bytef* s1, const Bytef* s2, uInt len)); - extern void zmemzero OF((Bytef* dest, uInt len)); -#endif - -/* Diagnostic functions */ -#ifdef DEBUG -# include - extern int z_verbose; - extern void z_error OF((char *m)); -# define Assert(cond,msg) {if(!(cond)) z_error(msg);} -# define Trace(x) {if (z_verbose>=0) fprintf x ;} -# define Tracev(x) {if (z_verbose>0) fprintf x ;} -# define Tracevv(x) {if (z_verbose>1) fprintf x ;} -# define Tracec(c,x) {if (z_verbose>0 && (c)) fprintf x ;} -# define Tracecv(c,x) {if (z_verbose>1 && (c)) fprintf x ;} -#else -# define Assert(cond,msg) -# define Trace(x) -# define Tracev(x) -# define Tracevv(x) -# define Tracec(c,x) -# define Tracecv(c,x) -#endif - - -voidpf zcalloc OF((voidpf opaque, unsigned items, unsigned size)); -void zcfree OF((voidpf opaque, voidpf ptr)); - -#define ZALLOC(strm, items, size) \ - (*((strm)->zalloc))((strm)->opaque, (items), (size)) -#define ZFREE(strm, addr) (*((strm)->zfree))((strm)->opaque, (voidpf)(addr)) -#define TRY_FREE(s, p) {if (p) ZFREE(s, p);} - -#endif /* ZUTIL_H */