187 lines
9.0 KiB
C++
187 lines
9.0 KiB
C++
/*
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* E57Simple - public header of E57 Simple API for reading/writing .e57 files.
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*
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* Copyright (c) 2010 Stan Coleby (scoleby@intelisum.com)
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* Copyright (c) 2020 PTC Inc.
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*
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* Permission is hereby granted, free of charge, to any person or organization
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* obtaining a copy of the software and accompanying documentation covered by
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* this license (the "Software") to use, reproduce, display, distribute,
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* execute, and transmit the Software, and to prepare derivative works of the
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* Software, and to permit third-parties to whom the Software is furnished to
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* do so, all subject to the following:
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*
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* The copyright notices in the Software and this entire statement, including
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* the above license grant, this restriction and the following disclaimer,
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* must be included in all copies of the Software, in whole or in part, and
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* all derivative works of the Software, unless such copies or derivative
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* works are solely in the form of machine-executable object code generated by
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* a source language processor.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE, TITLE AND NON-INFRINGEMENT. IN NO EVENT
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* SHALL THE COPYRIGHT HOLDERS OR ANYONE DISTRIBUTING THE SOFTWARE BE LIABLE
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* FOR ANY DAMAGES OR OTHER LIABILITY, WHETHER IN CONTRACT, TORT OR OTHERWISE,
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* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
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* DEALINGS IN THE SOFTWARE.
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*/
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#pragma once
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//! @file E57SimpleReader.h E57 Simple API for reading E57
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#include "E57SimpleData.h"
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namespace e57
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{
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//! @brief Used for reading of the E57 file with E57 Simple API
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class E57_DLL Reader
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{
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public:
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//! @brief This function is the constructor for the reader class
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//! @param [in] filePath file path to E57 file
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Reader( const ustring &filePath );
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//! @brief This function returns true if the file is open
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bool IsOpen() const;
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//! @brief This function closes the file
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bool Close();
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//! @name File information
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//!@{
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//! @brief This function returns the file header information
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//! @param [out] fileHeader is the main header information
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//! @return Returns true if successful
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bool GetE57Root( E57Root &fileHeader ) const;
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//!@}
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//! @name Image2D
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//!@{
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//! @brief This function returns the total number of Picture Blocks
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//! @return Returns the number of Image2D blocks
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int64_t GetImage2DCount() const;
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//! @brief This function returns the image2D header and positions the cursor
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//! @param [in] imageIndex This in the index into the image2D vector
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//! @param [out] image2DHeader pointer to the Image2D structure to receive the picture information
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//! @return Returns true if successful
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bool ReadImage2D( int64_t imageIndex, Image2D &image2DHeader ) const;
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//! @brief This function returns the size of the image data
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//! @param [in] imageIndex This in the index into the image2D vector
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//! @param [out] imageProjection identifies the projection in the image2D.
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//! @param [out] imageType identifies the image format of the projection.
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//! @param [out] imageWidth The image width (in pixels).
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//! @param [out] imageHeight The image height (in pixels).
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//! @param [out] imageSize This is the total number of bytes for the image blob.
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//! @param [out] imageMaskType This is E57_PNG_IMAGE_MASK if "imageMask" is defined in the projection
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//! @param [out] imageVisualType This is image type of the VisualReferenceRepresentation if given.
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//! @return Returns true if successful
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bool GetImage2DSizes( int64_t imageIndex, Image2DProjection &imageProjection, Image2DType &imageType,
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int64_t &imageWidth, int64_t &imageHeight, int64_t &imageSize, Image2DType &imageMaskType,
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Image2DType &imageVisualType ) const;
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//! @brief This function reads an image
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//! @param [in] imageIndex index of the image. Must be less than GetImage2DCount()
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//! @param [in] imageProjection identifies the projection desired.
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//! @param [in] imageType identifies the image format desired.
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//! @param [out] buffer pointer the raw image buffer
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//! @param [in] start position in the block to start reading
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//! @param [in] count size of desired chuck or buffer size
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//! @return Returns the number of bytes transferred.
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int64_t ReadImage2DData( int64_t imageIndex, Image2DProjection imageProjection, Image2DType imageType,
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void *buffer, int64_t start, int64_t count ) const;
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//!@}
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//! @name Data3D
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//!@{
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//! @brief This function returns the total number of Data3D Blocks
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//! @return Returns number of Data3D blocks.
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int64_t GetData3DCount() const;
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//! @brief This function returns the Data3D header
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//! @param [in] dataIndex This in the index into the images3D vector. Must be less than GetData3DCount().
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//! @param [out] data3DHeader Data3D header
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//! @return Returns true if successful
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bool ReadData3D( int64_t dataIndex, Data3D &data3DHeader ) const;
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//! @brief This function returns the size of the point data
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//! @param [in] dataIndex This in the index into the images3D vector. Must be less than GetData3DCount().
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//! @param [out] rowMax This is the maximum row size
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//! @param [out] columnMax This is the maximum column size
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//! @param [out] pointsSize This is the total number of point records
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//! @param [out] groupsSize This is the total number of group reocrds
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//! @param [out] countSize This is the maximum point count per group
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//! @param [out] columnIndex This indicates that the idElementName is "columnIndex"
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//! @return Return true if successful, false otherwise
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bool GetData3DSizes( int64_t dataIndex, int64_t &rowMax, int64_t &columnMax, int64_t &pointsSize,
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int64_t &groupsSize, int64_t &countSize, bool &columnIndex ) const;
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//! @brief This function reads the group data into the provided buffers.
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//! @param [in] dataIndex This in the index into the images3D vector. Must be less than GetData3DCount().
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//! @param [in] groupCount size of each of the buffers given
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//! @param [out] idElementValue pointer to the buffer holding indices index for this group
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//! @param [out] startPointIndex pointer to the buffer holding Starting index in to the "points" data vector for
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//! the groups
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//! @param [out] pointCount pointer to the buffer holding size of the groups given
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//! @return Return true if successful, false otherwise
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bool ReadData3DGroupsData( int64_t dataIndex, int64_t groupCount, int64_t *idElementValue,
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int64_t *startPointIndex, int64_t *pointCount ) const;
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//! @brief Use this function to read the actual 3D data
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//! @details All the non-NULL buffers in buffers have number of elements = pointCount.
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//! Call the CompressedVectorReader::read() until all data is read.
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//! @param [in] dataIndex data block index given by the NewData3D
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//! @param [in] pointCount size of each element buffer.
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//! @param [in] buffers pointers to user-provided buffers
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//! @return vector reader setup to read the selected data into the provided buffers
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CompressedVectorReader SetUpData3DPointsData( int64_t dataIndex, size_t pointCount,
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const Data3DPointsData &buffers ) const;
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//! @brief Use this function to read the actual 3D data
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//! @details All the non-NULL buffers in buffers have number of elements = pointCount.
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//! Call the CompressedVectorReader::read() until all data is read.
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//! @param [in] dataIndex data block index given by the NewData3D
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//! @param [in] pointCount size of each element buffer.
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//! @param [in] buffers pointers to user-provided buffers
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//! @return vector reader setup to read the selected data into the provided buffers
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CompressedVectorReader SetUpData3DPointsData( int64_t dataIndex, size_t pointCount,
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const Data3DPointsData_d &buffers ) const;
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//!@}
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//! @name Foundation API file information
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//!@{
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//! @brief Returns the file raw E57Root Structure Node
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StructureNode GetRawE57Root() const;
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//! @brief Returns the raw Data3D Vector Node
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VectorNode GetRawData3D() const;
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//! @brief Returns the raw Image2D Vector Node
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VectorNode GetRawImages2D() const;
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//! @brief Returns the ram ImageFile Node which is need to add enhancements
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ImageFile GetRawIMF() const;
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//!@}
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//! @cond documentNonPublic The following isn't part of the API, and isn't
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//! documented.
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protected:
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friend class ReaderImpl;
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E57_OBJECT_IMPLEMENTATION( Reader ) // Internal implementation details, not part of API, must be last in object
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//! @endcond
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}; // end Reader class
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} // end namespace e57
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