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Diffstat (limited to '3rdparty/include/glm/gtx/color_space_YCoCg.inl')
| -rw-r--r-- | 3rdparty/include/glm/gtx/color_space_YCoCg.inl | 87 |
1 files changed, 87 insertions, 0 deletions
diff --git a/3rdparty/include/glm/gtx/color_space_YCoCg.inl b/3rdparty/include/glm/gtx/color_space_YCoCg.inl new file mode 100644 index 0000000..caf8822 --- /dev/null +++ b/3rdparty/include/glm/gtx/color_space_YCoCg.inl @@ -0,0 +1,87 @@ +/////////////////////////////////////////////////////////////////////////////////// +/// OpenGL Mathematics (glm.g-truc.net) +/// +/// Copyright (c) 2005 - 2015 G-Truc Creation (www.g-truc.net) +/// Permission is hereby granted, free of charge, to any person obtaining a copy +/// of this software and associated documentation files (the "Software"), to deal +/// in the Software without restriction, including without limitation the rights +/// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell +/// copies of the Software, and to permit persons to whom the Software is +/// furnished to do so, subject to the following conditions: +/// +/// The above copyright notice and this permission notice shall be included in +/// all copies or substantial portions of the Software. +/// +/// Restrictions: +/// By making use of the Software for military purposes, you choose to make +/// a Bunny unhappy. +/// +/// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR +/// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, +/// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE +/// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER +/// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, +/// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN +/// THE SOFTWARE. +/// +/// @ref gtx_color_space_YCoCg +/// @file glm/gtx/color_space_YCoCg.inl +/// @date 2008-10-28 / 2011-06-07 +/// @author Christophe Riccio +/////////////////////////////////////////////////////////////////////////////////////////////////// + +namespace glm +{ + template <typename T, precision P> + GLM_FUNC_QUALIFIER tvec3<T, P> rgb2YCoCg + ( + tvec3<T, P> const & rgbColor + ) + { + tvec3<T, P> result; + result.x/*Y */ = rgbColor.r / T(4) + rgbColor.g / T(2) + rgbColor.b / T(4); + result.y/*Co*/ = rgbColor.r / T(2) + rgbColor.g * T(0) - rgbColor.b / T(2); + result.z/*Cg*/ = - rgbColor.r / T(4) + rgbColor.g / T(2) - rgbColor.b / T(4); + return result; + } + + template <typename T, precision P> + GLM_FUNC_QUALIFIER tvec3<T, P> rgb2YCoCgR + ( + tvec3<T, P> const & rgbColor + ) + { + tvec3<T, P> result; + result.x/*Y */ = rgbColor.g / T(2) + (rgbColor.r + rgbColor.b) / T(4); + result.y/*Co*/ = rgbColor.r - rgbColor.b; + result.z/*Cg*/ = rgbColor.g - (rgbColor.r + rgbColor.b) / T(2); + return result; + } + + template <typename T, precision P> + GLM_FUNC_QUALIFIER tvec3<T, P> YCoCg2rgb + ( + tvec3<T, P> const & YCoCgColor + ) + { + tvec3<T, P> result; + result.r = YCoCgColor.x + YCoCgColor.y - YCoCgColor.z; + result.g = YCoCgColor.x + YCoCgColor.z; + result.b = YCoCgColor.x - YCoCgColor.y - YCoCgColor.z; + return result; + } + + template <typename T, precision P> + GLM_FUNC_QUALIFIER tvec3<T, P> YCoCgR2rgb + ( + tvec3<T, P> const & YCoCgRColor + ) + { + tvec3<T, P> result; + T tmp = YCoCgRColor.x - (YCoCgRColor.z / T(2)); + result.g = YCoCgRColor.z + tmp; + result.b = tmp - (YCoCgRColor.y / T(2)); + result.r = result.b + YCoCgRColor.y; + return result; + } +}//namespace glm |