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Gui: Support of converting 64-bit images

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wmayer
2024-11-28 15:41:11 +01:00
committed by wwmayer
parent b9cc17b2fd
commit a372678e98
1 changed files with 58 additions and 34 deletions
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92
src/Gui/BitmapFactory.cpp
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@@ -539,58 +539,82 @@ void BitmapFactoryInst::convert(const QImage& p, SoSFImage& img) const
QVector<QRgb> table = p.colorTable();
if (!table.isEmpty()) {
if (p.hasAlphaChannel()) {
if (p.allGray())
if (p.allGray()) {
numcomponents = 2;
else
}
else {
numcomponents = 4;
}
}
else {
if (p.allGray())
if (p.allGray()) {
numcomponents = 1;
else
}
else {
numcomponents = 3;
}
}
}
else {
numcomponents = buffersize / (size[0] * size[1]);
}
int depth = numcomponents;
// Coin3D only supports up to 32-bit images
if (numcomponents == 8) {
numcomponents = 4;
}
// allocate image data
img.setValue(size, numcomponents, nullptr);
unsigned char * bytes = img.startEditing(size, numcomponents);
unsigned char* bytes = img.startEditing(size, numcomponents);
int width = (int)size[0];
int width = (int)size[0];
int height = (int)size[1];
for (int y = 0; y < height; y++)
{
unsigned char * line = &bytes[width*numcomponents*(height-(y+1))];
for (int x = 0; x < width; x++)
{
QRgb rgb = p.pixel(x,y);
switch (numcomponents)
{
default:
break;
case 1:
line[0] = qGray( rgb );
break;
case 2:
line[0] = qGray( rgb );
line[1] = qAlpha( rgb );
break;
case 3:
line[0] = qRed( rgb );
line[1] = qGreen( rgb );
line[2] = qBlue( rgb );
break;
case 4:
line[0] = qRed( rgb );
line[1] = qGreen( rgb );
line[2] = qBlue( rgb );
line[3] = qAlpha( rgb );
break;
for (int y = 0; y < height; y++) {
unsigned char* line = &bytes[width * numcomponents * (height - (y + 1))];
for (int x = 0; x < width; x++) {
QColor col = p.pixelColor(x,y);
switch (depth) {
default:
break;
case 1:
{
QRgb rgb = col.rgb();
line[0] = qGray(rgb);
} break;
case 2:
{
QRgb rgb = col.rgb();
line[0] = qGray(rgb);
line[1] = qAlpha(rgb);
} break;
case 3:
{
QRgb rgb = col.rgb();
line[0] = qRed(rgb);
line[1] = qGreen(rgb);
line[2] = qBlue(rgb);
} break;
case 4:
{
QRgb rgb = col.rgb();
line[0] = qRed(rgb);
line[1] = qGreen(rgb);
line[2] = qBlue(rgb);
line[3] = qAlpha(rgb);
} break;
case 8:
{
QRgba64 rgb = col.rgba64();
line[0] = qRed(rgb);
line[1] = qGreen(rgb);
line[2] = qBlue(rgb);
line[3] = qAlpha(rgb);
} break;
}
line += numcomponents;