Merge pull request #4 from FOSSEE/develop

merging dev into master

1 files changed, 454 insertions, 0 deletions

diff --git a/include/gal/opengl/glm/gtc/half_float.hpp b/include/gal/opengl/glm/gtc/half_float.hpp
new file mode 100644
index 0000000..fa0fe1a
--- /dev/null
+++ b/include/gal/opengl/glm/gtc/half_float.hpp
@@ -0,0 +1,454 @@
+///////////////////////////////////////////////////////////////////////////////////
+/// OpenGL Mathematics (glm.g-truc.net)
+///
+/// Copyright (c) 2005 - 2013 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.
+/// 
+/// 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 gtc_half_float
+/// @file glm/gtc/half_float.hpp
+/// @date 2009-04-29 / 2012-11-06
+/// @author Christophe Riccio
+///
+/// @see core (dependence)
+///
+/// @defgroup gtc_half_float GLM_GTC_half_float
+/// @ingroup gtc
+/// 
+/// Defines the half-precision floating-point type, along with various typedefs for vectors and matrices.
+/// <glm/gtc/half_float.hpp> need to be included to use these functionalities.
+///////////////////////////////////////////////////////////////////////////////////
+
+#ifndef GLM_GTC_half_float
+#define GLM_GTC_half_float GLM_VERSION
+
+// Dependency:
+#include "../glm.hpp"
+
+#if(defined(GLM_MESSAGES) && !defined(glm_ext))
+#	pragma message("GLM: GLM_GTC_half_float extension included")
+#endif
+
+namespace glm{
+namespace detail
+{
+#if(GLM_COMPONENT == GLM_COMPONENT_CXX98)
+	template <>
+	struct tvec2<half>
+	{
+		enum ctor{null};
+		typedef half value_type;
+		typedef std::size_t size_type;
+
+		GLM_FUNC_DECL size_type length() const;
+		static GLM_FUNC_DECL size_type value_size();
+
+		typedef tvec2<half> type;
+		typedef tvec2<bool> bool_type;
+
+		//////////////////////////////////////
+		// Data
+
+		half x, y;
+
+		//////////////////////////////////////
+		// Accesses
+
+		GLM_FUNC_DECL half & operator[](size_type i);
+		GLM_FUNC_DECL half const & operator[](size_type i) const;
+
+		//////////////////////////////////////
+		// Implicit basic constructors
+
+		GLM_FUNC_DECL tvec2();
+		GLM_FUNC_DECL tvec2(tvec2<half> const & v);
+
+		//////////////////////////////////////
+		// Explicit basic constructors
+
+		GLM_FUNC_DECL explicit tvec2(ctor);
+		GLM_FUNC_DECL explicit tvec2(
+			half const & s);
+		GLM_FUNC_DECL explicit tvec2(
+			half const & s1, 
+			half const & s2);
+
+		//////////////////////////////////////
+		// Swizzle constructors
+
+		GLM_FUNC_DECL tvec2(tref2<half> const & r);
+
+		//////////////////////////////////////
+		// Convertion scalar constructors
+
+		//! Explicit converions (From section 5.4.1 Conversion and scalar constructors of GLSL 1.30.08 specification)
+		template <typename U> 
+		GLM_FUNC_DECL explicit tvec2(U const & x);
+		//! Explicit converions (From section 5.4.1 Conversion and scalar constructors of GLSL 1.30.08 specification)
+		template <typename U, typename V> 
+		GLM_FUNC_DECL explicit tvec2(U const & x, V const & y);			
+
+		//////////////////////////////////////
+		// Convertion vector constructors
+
+		//! Explicit conversions (From section 5.4.1 Conversion and scalar constructors of GLSL 1.30.08 specification)
+		template <typename U> 
+		GLM_FUNC_DECL explicit tvec2(tvec2<U> const & v);
+		//! Explicit conversions (From section 5.4.1 Conversion and scalar constructors of GLSL 1.30.08 specification)
+		template <typename U> 
+		GLM_FUNC_DECL explicit tvec2(tvec3<U> const & v);
+		//! Explicit conversions (From section 5.4.1 Conversion and scalar constructors of GLSL 1.30.08 specification)
+		template <typename U> 
+		GLM_FUNC_DECL explicit tvec2(tvec4<U> const & v);
+
+		//////////////////////////////////////
+		// Unary arithmetic operators
+
+		GLM_FUNC_DECL tvec2<half>& operator= (tvec2<half> const & v);
+
+		GLM_FUNC_DECL tvec2<half>& operator+=(half const & s);
+		GLM_FUNC_DECL tvec2<half>& operator+=(tvec2<half> const & v);
+		GLM_FUNC_DECL tvec2<half>& operator-=(half const & s);
+		GLM_FUNC_DECL tvec2<half>& operator-=(tvec2<half> const & v);
+		GLM_FUNC_DECL tvec2<half>& operator*=(half const & s);
+		GLM_FUNC_DECL tvec2<half>& operator*=(tvec2<half> const & v);
+		GLM_FUNC_DECL tvec2<half>& operator/=(half const & s);
+		GLM_FUNC_DECL tvec2<half>& operator/=(tvec2<half> const & v);
+		GLM_FUNC_DECL tvec2<half>& operator++();
+		GLM_FUNC_DECL tvec2<half>& operator--();
+
+		//////////////////////////////////////
+		// Swizzle operators
+
+		GLM_FUNC_DECL half swizzle(comp X) const;
+		GLM_FUNC_DECL tvec2<half> swizzle(comp X, comp Y) const;
+		GLM_FUNC_DECL tvec3<half> swizzle(comp X, comp Y, comp Z) const;
+		GLM_FUNC_DECL tvec4<half> swizzle(comp X, comp Y, comp Z, comp W) const;
+		GLM_FUNC_DECL tref2<half> swizzle(comp X, comp Y);
+	};
+
+	template <>
+	struct tvec3<half>
+	{
+		enum ctor{null};
+		typedef half value_type;
+		typedef std::size_t size_type;
+		GLM_FUNC_DECL size_type length() const;
+		static GLM_FUNC_DECL size_type value_size();
+
+		typedef tvec3<half> type;
+		typedef tvec3<bool> bool_type;
+
+		//////////////////////////////////////
+		// Data
+
+		half x, y, z;
+
+		//////////////////////////////////////
+		// Accesses
+
+		GLM_FUNC_DECL half & operator[](size_type i);
+		GLM_FUNC_DECL half const & operator[](size_type i) const;
+
+		//////////////////////////////////////
+		// Implicit basic constructors
+
+		GLM_FUNC_DECL tvec3();
+		GLM_FUNC_DECL tvec3(tvec3<half> const & v);
+
+		//////////////////////////////////////
+		// Explicit basic constructors
+
+		GLM_FUNC_DECL explicit tvec3(ctor);
+		GLM_FUNC_DECL explicit tvec3(
+			half const & s);
+		GLM_FUNC_DECL explicit tvec3(
+			half const & s1, 
+			half const & s2, 
+			half const & s3);
+
+		//////////////////////////////////////
+		// Swizzle constructors
+
+		GLM_FUNC_DECL tvec3(tref3<half> const & r);
+
+		//////////////////////////////////////
+		// Convertion scalar constructors
+
+		//! Explicit converions (From section 5.4.1 Conversion and scalar constructors of GLSL 1.30.08 specification)
+		template <typename U> 
+		GLM_FUNC_DECL explicit tvec3(U const & x);
+		//! Explicit converions (From section 5.4.1 Conversion and scalar constructors of GLSL 1.30.08 specification)
+		template <typename U, typename V, typename W> 
+		GLM_FUNC_DECL explicit tvec3(U const & x, V const & y, W const & z);			
+
+		//////////////////////////////////////
+		// Convertion vector constructors
+
+		//! Explicit conversions (From section 5.4.1 Conversion and scalar constructors of GLSL 1.30.08 specification)
+		template <typename A, typename B> 
+		GLM_FUNC_DECL explicit tvec3(tvec2<A> const & v, B const & s);
+		//! Explicit conversions (From section 5.4.1 Conversion and scalar constructors of GLSL 1.30.08 specification)
+		template <typename A, typename B> 
+		GLM_FUNC_DECL explicit tvec3(A const & s, tvec2<B> const & v);
+		//! Explicit conversions (From section 5.4.1 Conversion and scalar constructors of GLSL 1.30.08 specification)
+		template <typename U> 
+		GLM_FUNC_DECL explicit tvec3(tvec3<U> const & v);
+		//! Explicit conversions (From section 5.4.1 Conversion and scalar constructors of GLSL 1.30.08 specification)
+		template <typename U> 
+		GLM_FUNC_DECL explicit tvec3(tvec4<U> const & v);
+
+		//////////////////////////////////////
+		// Unary arithmetic operators
+
+		GLM_FUNC_DECL tvec3<half>& operator= (tvec3<half> const & v);
+
+		GLM_FUNC_DECL tvec3<half>& operator+=(half const & s);
+		GLM_FUNC_DECL tvec3<half>& operator+=(tvec3<half> const & v);
+		GLM_FUNC_DECL tvec3<half>& operator-=(half const & s);
+		GLM_FUNC_DECL tvec3<half>& operator-=(tvec3<half> const & v);
+		GLM_FUNC_DECL tvec3<half>& operator*=(half const & s);
+		GLM_FUNC_DECL tvec3<half>& operator*=(tvec3<half> const & v);
+		GLM_FUNC_DECL tvec3<half>& operator/=(half const & s);
+		GLM_FUNC_DECL tvec3<half>& operator/=(tvec3<half> const & v);
+		GLM_FUNC_DECL tvec3<half>& operator++();
+		GLM_FUNC_DECL tvec3<half>& operator--();
+
+		//////////////////////////////////////
+		// Swizzle operators
+
+		GLM_FUNC_DECL half swizzle(comp X) const;
+		GLM_FUNC_DECL tvec2<half> swizzle(comp X, comp Y) const;
+		GLM_FUNC_DECL tvec3<half> swizzle(comp X, comp Y, comp Z) const;
+		GLM_FUNC_DECL tvec4<half> swizzle(comp X, comp Y, comp Z, comp W) const;
+		GLM_FUNC_DECL tref3<half> swizzle(comp X, comp Y, comp Z);
+	};
+
+	template <>
+	struct tvec4<half>
+	{
+		enum ctor{null};
+		typedef half value_type;
+		typedef std::size_t size_type;
+		GLM_FUNC_DECL size_type length() const;
+		static GLM_FUNC_DECL size_type value_size();
+
+		typedef tvec4<half> type;
+		typedef tvec4<bool> bool_type;
+
+		//////////////////////////////////////
+		// Data
+
+		half x, y, z, w;
+
+		//////////////////////////////////////
+		// Accesses
+
+		GLM_FUNC_DECL half & operator[](size_type i);
+		GLM_FUNC_DECL half const & operator[](size_type i) const;
+
+		//////////////////////////////////////
+		// Implicit basic constructors
+
+		GLM_FUNC_DECL tvec4();
+		GLM_FUNC_DECL tvec4(tvec4<half> const & v);
+
+		//////////////////////////////////////
+		// Explicit basic constructors
+
+		GLM_FUNC_DECL explicit tvec4(ctor);
+		GLM_FUNC_DECL explicit tvec4(
+			half const & s);
+		GLM_FUNC_DECL explicit tvec4(
+			half const & s0, 
+			half const & s1, 
+			half const & s2, 
+			half const & s3);
+
+		//////////////////////////////////////
+		// Swizzle constructors
+
+		GLM_FUNC_DECL tvec4(tref4<half> const & r);
+
+		//////////////////////////////////////
+		// Convertion scalar constructors
+
+		//! Explicit converions (From section 5.4.1 Conversion and scalar constructors of GLSL 1.30.08 specification)
+		template <typename U> 
+		GLM_FUNC_DECL explicit tvec4(U const & x);
+		//! Explicit converions (From section 5.4.1 Conversion and scalar constructors of GLSL 1.30.08 specification)
+		template <typename A, typename B, typename C, typename D> 
+		GLM_FUNC_DECL explicit tvec4(A const & x, B const & y, C const & z, D const & w);			
+
+		//////////////////////////////////////
+		// Convertion vector constructors
+
+		//! Explicit conversions (From section 5.4.1 Conversion and scalar constructors of GLSL 1.30.08 specification)
+		template <typename A, typename B, typename C> 
+		GLM_FUNC_DECL explicit tvec4(tvec2<A> const & v, B const & s1, C const & s2);
+		//! Explicit conversions (From section 5.4.1 Conversion and scalar constructors of GLSL 1.30.08 specification)
+		template <typename A, typename B, typename C> 
+		GLM_FUNC_DECL explicit tvec4(A const & s1, tvec2<B> const & v, C const & s2);
+		//! Explicit conversions (From section 5.4.1 Conversion and scalar constructors of GLSL 1.30.08 specification)
+		template <typename A, typename B, typename C> 
+		GLM_FUNC_DECL explicit tvec4(A const & s1, B const & s2, tvec2<C> const & v);
+		//! Explicit conversions (From section 5.4.1 Conversion and scalar constructors of GLSL 1.30.08 specification)
+		template <typename A, typename B> 
+		GLM_FUNC_DECL explicit tvec4(tvec3<A> const & v, B const & s);
+		//! Explicit conversions (From section 5.4.1 Conversion and scalar constructors of GLSL 1.30.08 specification)
+		template <typename A, typename B> 
+		GLM_FUNC_DECL explicit tvec4(A const & s, tvec3<B> const & v);
+		//! Explicit conversions (From section 5.4.1 Conversion and scalar constructors of GLSL 1.30.08 specification)
+		template <typename A, typename B> 
+		GLM_FUNC_DECL explicit tvec4(tvec2<A> const & v1, tvec2<B> const & v2);
+		//! Explicit conversions (From section 5.4.1 Conversion and scalar constructors of GLSL 1.30.08 specification)
+		template <typename U> 
+		GLM_FUNC_DECL explicit tvec4(tvec4<U> const & v);
+
+		//////////////////////////////////////
+		// Unary arithmetic operators
+
+		GLM_FUNC_DECL tvec4<half>& operator= (tvec4<half> const & v);
+
+		GLM_FUNC_DECL tvec4<half>& operator+=(half const & s);
+		GLM_FUNC_DECL tvec4<half>& operator+=(tvec4<half> const & v);
+		GLM_FUNC_DECL tvec4<half>& operator-=(half const & s);
+		GLM_FUNC_DECL tvec4<half>& operator-=(tvec4<half> const & v);
+		GLM_FUNC_DECL tvec4<half>& operator*=(half const & s);
+		GLM_FUNC_DECL tvec4<half>& operator*=(tvec4<half> const & v);
+		GLM_FUNC_DECL tvec4<half>& operator/=(half const & s);
+		GLM_FUNC_DECL tvec4<half>& operator/=(tvec4<half> const & v);
+		GLM_FUNC_DECL tvec4<half>& operator++();
+		GLM_FUNC_DECL tvec4<half>& operator--();
+
+		//////////////////////////////////////
+		// Swizzle operators
+
+		GLM_FUNC_DECL half swizzle(comp X) const;
+		GLM_FUNC_DECL tvec2<half> swizzle(comp X, comp Y) const;
+		GLM_FUNC_DECL tvec3<half> swizzle(comp X, comp Y, comp Z) const;
+		GLM_FUNC_DECL tvec4<half> swizzle(comp X, comp Y, comp Z, comp W) const;
+		GLM_FUNC_DECL tref4<half> swizzle(comp X, comp Y, comp Z, comp W);
+	};
+#endif//(GLM_COMPONENT == GLM_COMPONENT_CXX98)
+}
+//namespace detail
+
+	/// @addtogroup gtc_half_float
+	/// @{
+
+	/// Type for half-precision floating-point numbers. 
+	/// @see gtc_half_float
+	typedef detail::half					half;
+
+	/// Vector of 2 half-precision floating-point numbers. 
+	/// @see gtc_half_float
+	typedef detail::tvec2<detail::half>	hvec2;
+
+	/// Vector of 3 half-precision floating-point numbers.
+	/// @see gtc_half_float
+	typedef detail::tvec3<detail::half>	hvec3;
+
+	/// Vector of 4 half-precision floating-point numbers. 
+	/// @see gtc_half_float
+	typedef detail::tvec4<detail::half>	hvec4;
+
+	/// 2 * 2 matrix of half-precision floating-point numbers.
+	/// @see gtc_half_float
+	typedef detail::tmat2x2<detail::half>	hmat2;
+
+	/// 3 * 3 matrix of half-precision floating-point numbers.
+	/// @see gtc_half_float
+	typedef detail::tmat3x3<detail::half>	hmat3;
+
+	/// 4 * 4 matrix of half-precision floating-point numbers.
+	/// @see gtc_half_float
+	typedef detail::tmat4x4<detail::half>	hmat4;
+
+	/// 2 * 2 matrix of half-precision floating-point numbers.
+	/// @see gtc_half_float
+	typedef detail::tmat2x2<detail::half>	hmat2x2;
+
+	/// 2 * 3 matrix of half-precision floating-point numbers.
+	/// @see gtc_half_float
+	typedef detail::tmat2x3<detail::half>	hmat2x3;
+
+	/// 2 * 4 matrix of half-precision floating-point numbers.
+	/// @see gtc_half_float
+	typedef detail::tmat2x4<detail::half>	hmat2x4;
+
+	/// 3 * 2 matrix of half-precision floating-point numbers.
+	/// @see gtc_half_float
+	typedef detail::tmat3x2<detail::half>	hmat3x2;
+
+	/// 3 * 3 matrix of half-precision floating-point numbers.
+	/// @see gtc_half_float
+	typedef detail::tmat3x3<detail::half>	hmat3x3;
+
+	/// 3 * 4 matrix of half-precision floating-point numbers.
+	/// @see gtc_half_float
+	typedef detail::tmat3x4<detail::half>	hmat3x4;
+
+	/// 4 * 2 matrix of half-precision floating-point numbers.
+	/// @see gtc_half_float
+	typedef detail::tmat4x2<detail::half>	hmat4x2;    
+
+	/// 4 * 3 matrix of half-precision floating-point numbers.
+	/// @see gtc_half_float
+	typedef detail::tmat4x3<detail::half>	hmat4x3;
+
+	/// 4 * 4 matrix of half-precision floating-point numbers.
+	/// @see gtc_half_float
+	typedef detail::tmat4x4<detail::half>	hmat4x4;
+
+	/// Returns the absolute value of a half-precision floating-point value
+	/// @see gtc_half_float
+	GLM_FUNC_DECL half abs(half const & x);
+
+	/// Returns the absolute value of a half-precision floating-point two dimensional vector
+	/// @see gtc_half_float
+	GLM_FUNC_DECL hvec2 abs(hvec2 const & x);
+
+	/// Returns the absolute value of a half-precision floating-point three dimensional vector
+	/// @see gtc_half_float
+	GLM_FUNC_DECL hvec3 abs(hvec3 const & x);
+
+	/// Returns the absolute value of a half-precision floating-point four dimensional vector
+	/// @see gtc_half_float
+	GLM_FUNC_DECL hvec4 abs(hvec4 const & x);
+
+	/// Selects which vector each returned component comes
+	/// from. For a component of <a> that is false, the
+	/// corresponding component of x is returned. For a
+	/// component of a that is true, the corresponding
+	/// component of y is returned. Components of x and y that
+	/// are not selected are allowed to be invalid floating point
+	/// values and will have no effect on the results. Thus, this
+	/// provides different functionality than
+	/// genType mix(genType x, genType y, genType(a))
+	/// where a is a Boolean vector.
+	///
+	/// @see gtc_half_float
+	GLM_FUNC_DECL half mix(half const & x, half const & y, bool const & a);
+
+	/// @}
+}// namespace glm
+
+#include "half_float.inl"
+
+#endif//GLM_GTC_half_float