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Less space used when saving a grayscale image

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This commit is contained in:
Mirco Miranda 2024-01-06 08:20:14 +01:00
parent f34185197a
commit f065104b72
1 changed files with 8 additions and 1 deletions
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9
src/imageformats/exr.cpp
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@ -621,7 +621,14 @@ bool EXRHandler::write(const QImage &image)
// write the EXR
K_OStream ostr(device(), QByteArray());
Imf::RgbaOutputFile file(ostr, header, image.hasAlphaChannel() ? Imf::RgbaChannels::WRITE_RGBA : Imf::RgbaChannels::WRITE_RGB);
auto channelsType = image.hasAlphaChannel() ? Imf::RgbaChannels::WRITE_RGBA : Imf::RgbaChannels::WRITE_RGB;
if (image.format() == QImage::Format_Mono ||
image.format() == QImage::Format_MonoLSB ||
image.format() == QImage::Format_Grayscale16 ||
image.format() == QImage::Format_Grayscale8) {
channelsType = Imf::RgbaChannels::WRITE_Y;
}
Imf::RgbaOutputFile file(ostr, header, channelsType);
Imf::Array2D<Imf::Rgba> pixels;
pixels.resizeErase(EXR_LINES_PER_BLOCK, width);