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Diffstat (limited to 'external/include/glm/gtc/color_space.inl')
| -rw-r--r-- | external/include/glm/gtc/color_space.inl | 75 |
1 files changed, 75 insertions, 0 deletions
diff --git a/external/include/glm/gtc/color_space.inl b/external/include/glm/gtc/color_space.inl new file mode 100644 index 0000000..c9a44ef --- /dev/null +++ b/external/include/glm/gtc/color_space.inl @@ -0,0 +1,75 @@ +/// @ref gtc_color_space +/// @file glm/gtc/color_space.inl + +namespace glm{ +namespace detail +{ + template <typename T, precision P, template <typename, precision> class vecType> + struct compute_rgbToSrgb + { + GLM_FUNC_QUALIFIER static vecType<T, P> call(vecType<T, P> const& ColorRGB, T GammaCorrection) + { + vecType<T, P> const ClampedColor(clamp(ColorRGB, static_cast<T>(0), static_cast<T>(1))); + + return mix( + pow(ClampedColor, vecType<T, P>(GammaCorrection)) * static_cast<T>(1.055) - static_cast<T>(0.055), + ClampedColor * static_cast<T>(12.92), + lessThan(ClampedColor, vecType<T, P>(static_cast<T>(0.0031308)))); + } + }; + + template <typename T, precision P> + struct compute_rgbToSrgb<T, P, tvec4> + { + GLM_FUNC_QUALIFIER static tvec4<T, P> call(tvec4<T, P> const& ColorRGB, T GammaCorrection) + { + return tvec4<T, P>(compute_rgbToSrgb<T, P, tvec3>::call(tvec3<T, P>(ColorRGB), GammaCorrection), ColorRGB.w); + } + }; + + template <typename T, precision P, template <typename, precision> class vecType> + struct compute_srgbToRgb + { + GLM_FUNC_QUALIFIER static vecType<T, P> call(vecType<T, P> const& ColorSRGB, T Gamma) + { + return mix( + pow((ColorSRGB + static_cast<T>(0.055)) * static_cast<T>(0.94786729857819905213270142180095), vecType<T, P>(Gamma)), + ColorSRGB * static_cast<T>(0.07739938080495356037151702786378), + lessThanEqual(ColorSRGB, vecType<T, P>(static_cast<T>(0.04045)))); + } + }; + + template <typename T, precision P> + struct compute_srgbToRgb<T, P, tvec4> + { + GLM_FUNC_QUALIFIER static tvec4<T, P> call(tvec4<T, P> const& ColorSRGB, T Gamma) + { + return tvec4<T, P>(compute_srgbToRgb<T, P, tvec3>::call(tvec3<T, P>(ColorSRGB), Gamma), ColorSRGB.w); + } + }; +}//namespace detail + + template <typename T, precision P, template <typename, precision> class vecType> + GLM_FUNC_QUALIFIER vecType<T, P> convertLinearToSRGB(vecType<T, P> const& ColorLinear) + { + return detail::compute_rgbToSrgb<T, P, vecType>::call(ColorLinear, static_cast<T>(0.41666)); + } + + template <typename T, precision P, template <typename, precision> class vecType> + GLM_FUNC_QUALIFIER vecType<T, P> convertLinearToSRGB(vecType<T, P> const& ColorLinear, T Gamma) + { + return detail::compute_rgbToSrgb<T, P, vecType>::call(ColorLinear, static_cast<T>(1) / Gamma); + } + + template <typename T, precision P, template <typename, precision> class vecType> + GLM_FUNC_QUALIFIER vecType<T, P> convertSRGBToLinear(vecType<T, P> const& ColorSRGB) + { + return detail::compute_srgbToRgb<T, P, vecType>::call(ColorSRGB, static_cast<T>(2.4)); + } + + template <typename T, precision P, template <typename, precision> class vecType> + GLM_FUNC_QUALIFIER vecType<T, P> convertSRGBToLinear(vecType<T, P> const& ColorSRGB, T Gamma) + { + return detail::compute_srgbToRgb<T, P, vecType>::call(ColorSRGB, Gamma); + } +}//namespace glm |