shader/Glm/gtx/optimum_pow.hpp

///////////////////////////////////////////////////////////////////////////////////
/// OpenGL Mathematics (glm.g-truc.net)
///
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/// @ref gtx_optimum_pow
/// @file glm/gtx/optimum_pow.hpp
/// @date 2005-12-21 / 2011-06-07
/// @author Christophe Riccio
///
/// @see core (dependence)
///
/// @defgroup gtx_optimum_pow GLM_GTX_optimum_pow
/// @ingroup gtx
/// 
/// @brief Integer exponentiation of power functions.
/// 
/// <glm/gtx/optimum_pow.hpp> need to be included to use these functionalities.
///////////////////////////////////////////////////////////////////////////////////

#ifndef GLM_GTX_optimum_pow
#define GLM_GTX_optimum_pow GLM_VERSION

// Dependency:
#include "../glm.hpp"

#if(defined(GLM_MESSAGES) && !defined(glm_ext))
#	pragma message("GLM: GLM_GTX_optimum_pow extension included")
#endif

namespace glm{
namespace gtx
{
	/// @addtogroup gtx_optimum_pow
	/// @{

	//! Returns x raised to the power of 2.
	//! From GLM_GTX_optimum_pow extension.
    template <typename genType> 
	genType pow2(const genType& x);

	//! Returns x raised to the power of 3.
	//! From GLM_GTX_optimum_pow extension.
    template <typename genType> 
	genType pow3(const genType& x);

	//! Returns x raised to the power of 4.
	//! From GLM_GTX_optimum_pow extension.
	template <typename genType> 
	genType pow4(const genType& x);
        
	//! Checks if the parameter is a power of 2 number. 
	//! From GLM_GTX_optimum_pow extension.
    bool powOfTwo(int num);

	//! Checks to determine if the parameter component are power of 2 numbers.
	//! From GLM_GTX_optimum_pow extension.
    detail::tvec2<bool> powOfTwo(const detail::tvec2<int>& x);

	//! Checks to determine if the parameter component are power of 2 numbers. 
	//! From GLM_GTX_optimum_pow extension.
    detail::tvec3<bool> powOfTwo(const detail::tvec3<int>& x);

	//! Checks to determine if the parameter component are power of 2 numbers. 
	//! From GLM_GTX_optimum_pow extension.
    detail::tvec4<bool> powOfTwo(const detail::tvec4<int>& x);

	/// @}
}//namespace gtx
}//namespace glm

#include "optimum_pow.inl"

#endif//GLM_GTX_optimum_pow