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Added the Chrome HDR tonemap operator

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Also added support for the SDL_PIXELFORMAT_XBGR2101010 pixel format to the D3D12, D3D11, and Metal renderers.
This commit is contained in:
Sam Lantinga
2024-02-21 09:03:03 -08:00
parent 4ba6aeee9d
commit 54c2ba6afd
50 changed files with 15111 additions and 21123 deletions
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6
src/video/SDL_surface.c
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@@ -340,9 +340,9 @@ float SDL_GetSurfaceHDRHeadroom(SDL_Surface *surface, SDL_Colorspace colorspace)
} else {
props = 0;
}
if (transfer == SDL_TRANSFER_CHARACTERISTICS_PQ &&
SDL_HasProperty(props, SDL_PROP_SURFACE_MAXCLL_NUMBER)) {
default_value = (float)SDL_GetNumberProperty(props, SDL_PROP_SURFACE_MAXCLL_NUMBER, 0) / SDL_GetSurfaceSDRWhitePoint(surface, colorspace);
if (transfer == SDL_TRANSFER_CHARACTERISTICS_PQ) {
const int DEFAULT_PQ_MAXCLL = 400; /* The official definition is 10000, but PQ game content is often mastered for 400 nits */
default_value = (float)SDL_GetNumberProperty(props, SDL_PROP_SURFACE_MAXCLL_NUMBER, DEFAULT_PQ_MAXCLL) / SDL_GetSurfaceSDRWhitePoint(surface, colorspace);
}
return SDL_GetFloatProperty(props, SDL_PROP_SURFACE_HDR_HEADROOM_FLOAT, default_value);
}