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diff --git a/src/glm/gtx/color_space_YCoCg.hpp b/src/glm/gtx/color_space_YCoCg.hpp
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+///////////////////////////////////////////////////////////////////////////////////////////////////
+// OpenGL Mathematics Copyright (c) 2005 - 2011 G-Truc Creation (www.g-truc.net)
+///////////////////////////////////////////////////////////////////////////////////////////////////
+// Created : 2008-10-28
+// Updated : 2008-10-28
+// Licence : This source is under MIT License
+// File    : glm/gtx/color_space_YCoCg.hpp
+///////////////////////////////////////////////////////////////////////////////////////////////////
+// Dependency:
+// - GLM core
+///////////////////////////////////////////////////////////////////////////////////////////////////
+
+#ifndef glm_gtx_color_space_YCoCg
+#define glm_gtx_color_space_YCoCg
+
+// Dependency:
+#include "../glm.hpp"
+
+#if(defined(GLM_MESSAGES) && !defined(glm_ext))
+#	pragma message("GLM: GLM_GTX_color_space_YCoCg extension included")
+#endif
+
+namespace glm{
+namespace gtx{
+namespace color_space_YCoCg ///< GLM_GTX_color_space_YCoCg extension: RGB to YCoCg conversions and operations
+{
+	/// \addtogroup gtx_color_space_YCoCg
+	///@{
+
+    //! Convert a color from RGB color space to YCoCg color space.
+	//! From GLM_GTX_color_space_YCoCg extension.
+	template <typename valType> 
+	detail::tvec3<valType> rgb2YCoCg(
+		detail::tvec3<valType> const & rgbColor);
+
+    //! Convert a color from YCoCg color space to RGB color space.
+	//! From GLM_GTX_color_space_YCoCg extension.
+    template <typename valType> 
+	detail::tvec3<valType> YCoCg2rgb(
+		detail::tvec3<valType> const & YCoCgColor);
+
+    //! Convert a color from RGB color space to YCoCgR color space.
+	//! \see "YCoCg-R: A Color Space with RGB Reversibility and Low Dynamic Range"
+	//! From GLM_GTX_color_space_YCoCg extension.
+	template <typename valType> 
+	detail::tvec3<valType> rgb2YCoCgR(
+		detail::tvec3<valType> const & rgbColor);
+
+    //! Convert a color from YCoCgR color space to RGB color space.
+	//! \see "YCoCg-R: A Color Space with RGB Reversibility and Low Dynamic Range"
+	//! From GLM_GTX_color_space_YCoCg extension.
+    template <typename valType> 
+	detail::tvec3<valType> YCoCgR2rgb(
+		detail::tvec3<valType> const & YCoCgColor);
+
+	/// @}
+}//namespace color_space_YCoCg
+}//namespace gtx
+}//namespace glm
+
+#include "color_space_YCoCg.inl"
+
+namespace glm{using namespace gtx::color_space_YCoCg;}
+
+#endif//glm_gtx_color_space_YCoCg