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testyuv: added GetColorspaceForYUVConversionMode()

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This commit is contained in:
Sam Lantinga
2024-03-01 02:02:53 -08:00
parent 812e04fb11
commit 991ad27de8
3 changed files with 39 additions and 26 deletions
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36
test/testyuv_cvt.c
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@@ -41,6 +41,42 @@ YUV_CONVERSION_MODE GetYUVConversionModeForResolution(int width, int height)
return mode;
}
SDL_Colorspace GetColorspaceForYUVConversionMode(YUV_CONVERSION_MODE mode)
{
SDL_Colorspace colorspace;
switch (mode) {
case YUV_CONVERSION_JPEG:
colorspace = SDL_DEFINE_COLORSPACE(SDL_COLOR_TYPE_YCBCR,
SDL_COLOR_RANGE_FULL,
SDL_COLOR_PRIMARIES_BT709,
SDL_TRANSFER_CHARACTERISTICS_BT601,
SDL_MATRIX_COEFFICIENTS_BT601,
SDL_CHROMA_LOCATION_CENTER);
break;
case YUV_CONVERSION_BT601:
colorspace = SDL_DEFINE_COLORSPACE(SDL_COLOR_TYPE_YCBCR,
SDL_COLOR_RANGE_LIMITED,
SDL_COLOR_PRIMARIES_BT709,
SDL_TRANSFER_CHARACTERISTICS_BT601,
SDL_MATRIX_COEFFICIENTS_BT601,
SDL_CHROMA_LOCATION_CENTER);
break;
case YUV_CONVERSION_BT709:
colorspace = SDL_DEFINE_COLORSPACE(SDL_COLOR_TYPE_YCBCR,
SDL_COLOR_RANGE_LIMITED,
SDL_COLOR_PRIMARIES_BT709,
SDL_TRANSFER_CHARACTERISTICS_BT709,
SDL_MATRIX_COEFFICIENTS_BT709,
SDL_CHROMA_LOCATION_CENTER);
break;
default:
colorspace = SDL_COLORSPACE_UNKNOWN;
break;
}
return colorspace;
}
static float clip3(float x, float y, float z)
{
return (z < x) ? x : ((z > y) ? y : z);