///////////////////////////////////////////////////////////////////////////////////////////////////
// OpenGL Mathematics Copyright (c) 2005 - 2011 G-Truc Creation (www.g-truc.net)
///////////////////////////////////////////////////////////////////////////////////////////////////
// Created : 2005-01-27
// Updated : 2011-06-02
// Licence : This source is under MIT License
// File    : glm/core/type_mat4x4.hpp
///////////////////////////////////////////////////////////////////////////////////////////////////

#ifndef glm_core_type_mat4x4
#define glm_core_type_mat4x4

#include "type_mat.hpp"

namespace glm{
namespace detail
{
	template <typename T> struct tvec1;
	template <typename T> struct tvec2;
	template <typename T> struct tvec3;
	template <typename T> struct tvec4;
	template <typename T> struct tmat2x2;
	template <typename T> struct tmat2x3;
	template <typename T> struct tmat2x4;
	template <typename T> struct tmat3x2;
	template <typename T> struct tmat3x3;
	template <typename T> struct tmat3x4;
	template <typename T> struct tmat4x2;
	template <typename T> struct tmat4x3;
	template <typename T> struct tmat4x4;

	//! \brief Template for 4 * 4 matrix of floating-point numbers.
	//! \ingroup core_template
	template <typename T> 
	struct tmat4x4
	{
		enum ctor{null};
		typedef T value_type;
		typedef std::size_t size_type;
		typedef tvec4<T> col_type;
		typedef tvec4<T> row_type;
		static GLM_FUNC_DECL size_type col_size();
		static GLM_FUNC_DECL size_type row_size();

		typedef tmat4x4<T> type;
		typedef tmat4x4<T> transpose_type;

	public:
		// Implementation detail
		GLM_FUNC_DECL tmat4x4<T> _inverse() const;

	private:
		// Data 
		col_type value[4];

	public:
		// Constructors
		GLM_FUNC_DECL tmat4x4();
		GLM_FUNC_DECL tmat4x4(tmat4x4 const & m);

		GLM_FUNC_DECL explicit tmat4x4(
			ctor Null);
		GLM_FUNC_DECL explicit tmat4x4(
			value_type const & x);
		GLM_FUNC_DECL explicit tmat4x4(
			value_type const & x0, value_type const & y0, value_type const & z0, value_type const & w0,
			value_type const & x1, value_type const & y1, value_type const & z1, value_type const & w1,
			value_type const & x2, value_type const & y2, value_type const & z2, value_type const & w2,
			value_type const & x3, value_type const & y3, value_type const & z3, value_type const & w3);
		GLM_FUNC_DECL explicit tmat4x4(
			col_type const & v0, 
			col_type const & v1,
			col_type const & v2,
			col_type const & v3);

		//////////////////////////////////////
		// Conversions
		template <typename U> 
		GLM_FUNC_DECL explicit tmat4x4(
            U const & x);
			
		template <
            typename X1, typename Y1, typename Z1, typename W1, 
            typename X2, typename Y2, typename Z2, typename W2, 
            typename X3, typename Y3, typename Z3, typename W3, 
            typename X4, typename Y4, typename Z4, typename W4> 
		GLM_FUNC_DECL explicit tmat4x4(
            X1 const & x1, Y1 const & y1, Z1 const & z1, W1 const & w1, 
            X2 const & x2, Y2 const & y2, Z2 const & z2, W2 const & w2, 
            X3 const & x3, Y3 const & y3, Z3 const & z3, W3 const & w3, 
            X4 const & x4, Y4 const & y4, Z4 const & z4, W4 const & w4);
			
		template <typename V1, typename V2, typename V3, typename V4> 
		GLM_FUNC_DECL explicit tmat4x4(
            tvec4<V1> const & v1, 
            tvec4<V2> const & v2,
            tvec4<V3> const & v3,
            tvec4<V4> const & v4);
            
		// Matrix conversions
		template <typename U> 
		GLM_FUNC_DECL explicit tmat4x4(tmat4x4<U> const & m);

		GLM_FUNC_DECL explicit tmat4x4(tmat2x2<T> const & x);
		GLM_FUNC_DECL explicit tmat4x4(tmat3x3<T> const & x);
		GLM_FUNC_DECL explicit tmat4x4(tmat2x3<T> const & x);
		GLM_FUNC_DECL explicit tmat4x4(tmat3x2<T> const & x);
		GLM_FUNC_DECL explicit tmat4x4(tmat2x4<T> const & x);
		GLM_FUNC_DECL explicit tmat4x4(tmat4x2<T> const & x);
		GLM_FUNC_DECL explicit tmat4x4(tmat3x4<T> const & x);
		GLM_FUNC_DECL explicit tmat4x4(tmat4x3<T> const & x);

		// Accesses
		GLM_FUNC_DECL col_type & operator[](size_type i);
		GLM_FUNC_DECL col_type const & operator[](size_type i) const;

		// Unary updatable operators
		GLM_FUNC_DECL tmat4x4<T> & operator=  (tmat4x4<T> const & m);
		template <typename U>
		GLM_FUNC_DECL tmat4x4<T> & operator=  (tmat4x4<U> const & m);
		template <typename U>
		GLM_FUNC_DECL tmat4x4<T> & operator+= (U const & s);
		template <typename U>
		GLM_FUNC_DECL tmat4x4<T> & operator+= (tmat4x4<U> const & m);
		template <typename U>
		GLM_FUNC_DECL tmat4x4<T> & operator-= (U const & s);
		template <typename U>
		GLM_FUNC_DECL tmat4x4<T> & operator-= (tmat4x4<U> const & m);
		template <typename U>
		GLM_FUNC_DECL tmat4x4<T> & operator*= (U const & s);
		template <typename U>
		GLM_FUNC_DECL tmat4x4<T> & operator*= (tmat4x4<U> const & m);
		template <typename U>
		GLM_FUNC_DECL tmat4x4<T> & operator/= (U const & s);
		template <typename U>
		GLM_FUNC_DECL tmat4x4<T> & operator/= (tmat4x4<U> const & m);
		GLM_FUNC_DECL tmat4x4<T> & operator++ ();
		GLM_FUNC_DECL tmat4x4<T> & operator-- ();
	};

	// Binary operators
	template <typename T> 
	tmat4x4<T> operator+ (
		tmat4x4<T> const & m, 
		typename tmat4x4<T>::value_type const & s);

	template <typename T> 
	tmat4x4<T> operator+ (
		typename tmat4x4<T>::value_type const & s, 
		tmat4x4<T> const & m);

	template <typename T> 
	tmat4x4<T> operator+ (
		tmat4x4<T> const & m1, 
		tmat4x4<T> const & m2);
	    
	template <typename T> 
	tmat4x4<T> operator- (
		tmat4x4<T> const & m, 
		typename tmat4x4<T>::value_type const & s);

	template <typename T> 
	tmat4x4<T> operator- (
		typename tmat4x4<T>::value_type const & s, 
		tmat4x4<T> const & m);

	template <typename T> 
	tmat4x4<T> operator- (
		tmat4x4<T> const & m1, 
		tmat4x4<T> const & m2);

	template <typename T> 
	tmat4x4<T> operator* (
		tmat4x4<T> const & m, 
		typename tmat4x4<T>::value_type const & s);

	template <typename T> 
	tmat4x4<T> operator* (
		typename tmat4x4<T>::value_type const & s, 
		tmat4x4<T> const & m);

	template <typename T> 
	typename tmat4x4<T>::col_type operator* (
		tmat4x4<T> const & m, 
		typename tmat4x4<T>::row_type const & v);

	template <typename T> 
	typename tmat4x4<T>::row_type operator* (
		typename tmat4x4<T>::col_type const & v, 
		tmat4x4<T> const & m);

	template <typename T> 
	tmat4x4<T> operator* (
		tmat4x4<T> const & m1, 
		tmat4x4<T> const & m2);

	template <typename T> 
	tmat4x4<T> operator/ (
		tmat4x4<T> const & m, 
		typename tmat4x4<T>::value_type const & s);

	template <typename T> 
	tmat4x4<T> operator/ (
		typename tmat4x4<T>::value_type const & s, 
		tmat4x4<T> const & m);

	template <typename T> 
	typename tmat4x4<T>::col_type operator/ (
		tmat4x4<T> const & m, 
		typename tmat4x4<T>::row_type const & v);

	template <typename T> 
	typename tmat4x4<T>::row_type operator/ (
		typename tmat4x4<T>::col_type & v, 
		tmat4x4<T> const & m);

	template <typename T> 
	tmat4x4<T> operator/ (
		tmat4x4<T> const & m1, 
		tmat4x4<T> const & m2);

	// Unary constant operators
	template <typename T> 
	tmat4x4<T> const operator-  (
		tmat4x4<T> const & m);

	template <typename T> 
	tmat4x4<T> const operator-- (
		tmat4x4<T> const & m, int);

	template <typename T> 
	tmat4x4<T> const operator++ (
		tmat4x4<T> const & m, int);

} //namespace detail

namespace core{
namespace type{
namespace precision
{
	//! 4 columns of 4 components matrix of low precision floating-point numbers.
	//! There is no guarantee on the actual precision.
	//! From GLSL 1.30.8 specification, section 4.1.6 Matrices and section 4.5 Precision and Precision Qualifiers
	//! \ingroup core_precision
	typedef detail::tmat4x4<lowp_float>		lowp_mat4;

	//! 4 columns of 4 components matrix of medium precision floating-point numbers.
	//! There is no guarantee on the actual precision.
	//! From GLSL 1.30.8 specification, section 4.1.6 Matrices and section 4.5 Precision and Precision Qualifiers
	//! \ingroup core_precision
	typedef detail::tmat4x4<mediump_float>	mediump_mat4;

	//! 4 columns of 4 components matrix of high precision floating-point numbers.
	//! There is no guarantee on the actual precision.
	//! From GLSL 1.30.8 specification, section 4.1.6 Matrices and section 4.5 Precision and Precision Qualifiers
	//! \ingroup core_precision
	typedef detail::tmat4x4<highp_float>	highp_mat4;

	//! 4 columns of 4 components matrix of low precision floating-point numbers.
	//! There is no guarantee on the actual precision.
	//! From GLSL 1.30.8 specification, section 4.1.6 Matrices and section 4.5 Precision and Precision Qualifiers
	//! \ingroup core_precision
	typedef detail::tmat4x4<lowp_float>		lowp_mat4x4;

	//! 4 columns of 4 components matrix of medium precision floating-point numbers.
	//! There is no guarantee on the actual precision.
	//! From GLSL 1.30.8 specification, section 4.1.6 Matrices and section 4.5 Precision and Precision Qualifiers
	//! \ingroup core_precision
	typedef detail::tmat4x4<mediump_float>	mediump_mat4x4;

	//! 4 columns of 4 components matrix of high precision floating-point numbers.
	//! There is no guarantee on the actual precision.
	//! From GLSL 1.30.8 specification, section 4.1.6 Matrices and section 4.5 Precision and Precision Qualifiers
	//! \ingroup core_precision
	typedef detail::tmat4x4<highp_float>	highp_mat4x4;

}//namespace precision
}//namespace type
}//namespace core
}//namespace glm

#ifndef GLM_EXTERNAL_TEMPLATE
#include "type_mat4x4.inl"
#endif//GLM_EXTERNAL_TEMPLATE

#endif//glm_core_type_mat4x4
