Add glm 0.9.2

ExternalLibs/glm/gtx/fast_exponential.hpp

@@ -0,0 +1,81 @@
+///////////////////////////////////////////////////////////////////////////////////////////////////
+// OpenGL Mathematics Copyright (c) 2005 - 2011 G-Truc Creation (www.g-truc.net)
+///////////////////////////////////////////////////////////////////////////////////////////////////
+// Created : 2006-01-09
+// Updated : 2006-11-13
+// Licence : This source is under MIT License
+// File    : glm/gtx/fast_exponential.hpp
+///////////////////////////////////////////////////////////////////////////////////////////////////
+// Dependency:
+// - GLM core
+// - GLM_GTC_half_float
+///////////////////////////////////////////////////////////////////////////////////////////////////
+
+#ifndef glm_gtx_fast_exponential
+#define glm_gtx_fast_exponential
+
+// Dependency:
+#include "../glm.hpp"
+#include "../gtc/half_float.hpp"
+
+#if(defined(GLM_MESSAGES) && !defined(glm_ext))
+#	pragma message("GLM: GLM_GTX_fast_exponential extension included")
+#endif
+
+namespace glm{
+namespace gtx{
+namespace fast_exponential ///< GLM_GTX_fast_exponential extension: Fast but less accurate implementations of exponential based functions.
+{
+	using namespace gtc::half_float;
+	/// \addtogroup gtx_fast_exponential
+	/// @{
+
+	//! Faster than the common pow function but less accurate.
+	//! From GLM_GTX_fast_exponential extension.
+	template <typename valType> 
+	valType fastPow(
+		valType const & x, 
+		valType const & y);
+
+	//! Faster than the common pow function but less accurate.
+	//! From GLM_GTX_fast_exponential extension.
+	template <typename T, typename U> 
+	T fastPow(
+		const T& x, 
+		const U& y);
+		
+	//! Faster than the common exp function but less accurate.
+	//! From GLM_GTX_fast_exponential extension.
+	template <typename T> 
+	T fastExp(const T& x);
+		
+	//! Faster than the common log function but less accurate.
+	//! From GLM_GTX_fast_exponential extension.
+	template <typename T> 
+	T fastLog(const T& x);
+
+	//! Faster than the common exp2 function but less accurate.
+	//! From GLM_GTX_fast_exponential extension.
+	template <typename T> 
+	T fastExp2(const T& x);
+		
+	//! Faster than the common log2 function but less accurate.
+	//! From GLM_GTX_fast_exponential extension.
+	template <typename T> 
+	T fastLog2(const T& x);
+
+	//! Faster than the common ln function but less accurate.
+	//! From GLM_GTX_fast_exponential extension.
+	template <typename T> 
+	T fastLn(const T& x);
+
+	/// @}
+}//namespace fast_exponential
+}//namespace gtx
+}//namespace glm
+
+#include "fast_exponential.inl"
+
+namespace glm{using namespace gtx::fast_exponential;}
+
+#endif//glm_gtx_fast_exponential