46 lines
1.7 KiB
C++
46 lines
1.7 KiB
C++
/// @ref gtx_color_encoding
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namespace glm
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{
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template<typename T, qualifier Q>
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GLM_FUNC_QUALIFIER vec<3, T, Q> convertLinearSRGBToD65XYZ(vec<3, T, Q> const& ColorLinearSRGB)
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{
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vec<3, T, Q> const M(0.490f, 0.17697f, 0.2f);
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vec<3, T, Q> const N(0.31f, 0.8124f, 0.01063f);
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vec<3, T, Q> const O(0.490f, 0.01f, 0.99f);
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return (M * ColorLinearSRGB + N * ColorLinearSRGB + O * ColorLinearSRGB) * static_cast<T>(5.650675255693055f);
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}
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template<typename T, qualifier Q>
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GLM_FUNC_QUALIFIER vec<3, T, Q> convertLinearSRGBToD50XYZ(vec<3, T, Q> const& ColorLinearSRGB)
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{
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vec<3, T, Q> const M(0.436030342570117f, 0.222438466210245f, 0.013897440074263f);
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vec<3, T, Q> const N(0.385101860087134f, 0.716942745571917f, 0.097076381494207f);
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vec<3, T, Q> const O(0.143067806654203f, 0.060618777416563f, 0.713926257896652f);
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return M * ColorLinearSRGB + N * ColorLinearSRGB + O * ColorLinearSRGB;
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}
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template<typename T, qualifier Q>
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GLM_FUNC_QUALIFIER vec<3, T, Q> convertD65XYZToLinearSRGB(vec<3, T, Q> const& ColorD65XYZ)
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{
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vec<3, T, Q> const M(0.41847f, -0.091169f, 0.0009209f);
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vec<3, T, Q> const N(-0.15866f, 0.25243f, 0.015708f);
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vec<3, T, Q> const O(0.0009209f, -0.0025498f, 0.1786f);
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return M * ColorD65XYZ + N * ColorD65XYZ + O * ColorD65XYZ;
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}
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template<typename T, qualifier Q>
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GLM_FUNC_QUALIFIER vec<3, T, Q> convertD65XYZToD50XYZ(vec<3, T, Q> const& ColorD65XYZ)
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{
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vec<3, T, Q> const M(+1.047844353856414f, +0.029549007606644f, -0.009250984365223f);
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vec<3, T, Q> const N(+0.022898981050086f, +0.990508028941971f, +0.015072338237051f);
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vec<3, T, Q> const O(-0.050206647741605f, -0.017074711360960f, +0.751717835079977f);
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return M * ColorD65XYZ + N * ColorD65XYZ + O * ColorD65XYZ;
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}
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}//namespace glm
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