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libkwineffects/kwinglutils: replace random eotf integers with named constants

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This commit is contained in:
Xaver Hugl 2023-05-25 15:06:19 +02:00
parent 6272d1d9f3
commit 242fce56b6
1 changed files with 7 additions and 6 deletions
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13
src/libkwineffects/kwinglutils.cpp
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@ -801,6 +801,10 @@ QByteArray ShaderManager::generateFragmentSource(ShaderTraits traits) const
stream << "uniform vec4 geometryColor;\n";
}
if (traits & ShaderTrait::TransformColorspace) {
stream << "const int sRGB_EOTF = 0;\n";
stream << "const int linear_EOTF = 1;\n";
stream << "const int PQ_EOTF = 2;\n";
stream << "\n";
stream << "uniform mat3 colorimetryTransform;\n";
stream << "uniform int sourceNamedTransferFunction;\n";
stream << "uniform int destinationNamedTransferFunction;\n";
@ -851,8 +855,7 @@ QByteArray ShaderManager::generateFragmentSource(ShaderTraits traits) const
stream << " result = geometryColor;\n";
}
if (traits & ShaderTrait::TransformColorspace) {
// sRGB -> output colorspace & linear
stream << " if (sourceNamedTransferFunction == 0) {\n";
stream << " if (sourceNamedTransferFunction == sRGB_EOTF) {\n";
stream << " result.rgb = sdrBrightness * srgbToLinear(result.rgb);\n";
stream << " }\n";
stream << " result.rgb = doTonemapping(colorimetryTransform * result.rgb, maxHdrBrightness);\n";
@ -867,11 +870,9 @@ QByteArray ShaderManager::generateFragmentSource(ShaderTraits traits) const
stream << " result *= modulation;\n";
}
if (traits & ShaderTrait::TransformColorspace) {
// nits -> simple sRGB
stream << " if (destinationNamedTransferFunction == 0) {\n";
stream << " if (destinationNamedTransferFunction == sRGB_EOTF) {\n";
stream << " result.rgb = linearToSrgb(doTonemapping(result.rgb, sdrBrightness) / sdrBrightness);\n";
// nits -> PQ
stream << " } else if (destinationNamedTransferFunction == 2) {\n";
stream << " } else if (destinationNamedTransferFunction == PQ_EOTF) {\n";
stream << " result.rgb = nitsToPq(result.rgb);\n";
stream << " }\n";
}