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backends/drm: do blending in gamma 2.2 space with color management too

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This matches what we do without color management, and is more what users and app
developers expect. Going with linear blending before was mostly from it being more
"correct" / how physical blending of light works, but that doesn't really matter
when existing software expects it to behave differently.

BUG: 476868
CCBUG: 479755
This commit is contained in:
Xaver Hugl 2024-07-04 19:14:30 +02:00
parent 5b86dba6bf
commit f20ccabe80
1 changed files with 1 additions and 1 deletions
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src/backends/drm/drm_egl_layer_surface.cpp
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@ -110,7 +110,7 @@ std::optional<OutputLayerBeginFrameInfo> EglGbmLayerSurface::startRendering(cons
m_surface->iccShader.reset();
}
if (enableColormanagement) {
m_surface->intermediaryColorDescription = ColorDescription(colorDescription.containerColorimetry(), TransferFunction::linear,
m_surface->intermediaryColorDescription = ColorDescription(colorDescription.containerColorimetry(), TransferFunction::gamma22,
colorDescription.referenceLuminance(), colorDescription.minLuminance(),
colorDescription.maxAverageLuminance(), colorDescription.maxHdrLuminance(),
colorDescription.containerColorimetry(), colorDescription.sdrColorimetry());