Merge pull request #3 from saurabhb17/master

secondary files

1 files changed, 381 insertions, 0 deletions

diff --git a/include/gal/opengl/glm/gtc/quaternion.hpp b/include/gal/opengl/glm/gtc/quaternion.hpp
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+///////////////////////////////////////////////////////////////////////////////////
+/// 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_quaternion
+/// @file glm/gtc/quaternion.hpp
+/// @date 2009-05-21 / 2012-12-20
+/// @author Christophe Riccio
+///
+/// @see core (dependence)
+/// @see gtc_half_float (dependence)
+/// @see gtc_constants (dependence)
+///
+/// @defgroup gtc_quaternion GLM_GTC_quaternion
+/// @ingroup gtc
+/// 
+/// @brief Defines a templated quaternion type and several quaternion operations.
+/// 
+/// <glm/gtc/quaternion.hpp> need to be included to use these functionalities.
+///////////////////////////////////////////////////////////////////////////////////
+
+#ifndef GLM_GTC_quaternion
+#define GLM_GTC_quaternion GLM_VERSION
+
+// Dependency:
+#include "../glm.hpp"
+#include "../gtc/half_float.hpp"
+#include "../gtc/constants.hpp"
+
+#if(defined(GLM_MESSAGES) && !defined(glm_ext))
+#	pragma message("GLM: GLM_GTC_quaternion extension included")
+#endif
+
+namespace glm{
+namespace detail
+{
+	template <typename T> 
+	struct tquat// : public genType<T, tquat>
+	{
+		enum ctor{null};
+
+		typedef T value_type;
+		typedef std::size_t size_type;
+
+	public:
+		value_type x, y, z, w;
+
+		GLM_FUNC_DECL size_type length() const;
+
+		// Constructors
+		tquat();
+		explicit tquat(
+			value_type const & s, 
+			glm::detail::tvec3<T> const & v);
+		explicit tquat(
+			value_type const & w, 
+			value_type const & x, 
+			value_type const & y, 
+			value_type const & z);
+
+		// Convertions
+
+		/// Build a quaternion from euler angles (pitch, yaw, roll), in radians.
+		explicit tquat(
+			tvec3<T> const & eulerAngles);
+		explicit tquat(
+			tmat3x3<T> const & m);
+		explicit tquat(
+			tmat4x4<T> const & m);
+
+		// Accesses
+		value_type & operator[](int i);
+		value_type const & operator[](int i) const;
+
+		// Operators
+		tquat<T> & operator*=(value_type const & s);
+		tquat<T> & operator/=(value_type const & s);
+	};
+
+	template <typename T> 
+	detail::tquat<T> operator- (
+		detail::tquat<T> const & q);
+
+	template <typename T> 
+	detail::tquat<T> operator+ ( 
+		detail::tquat<T> const & q, 
+		detail::tquat<T> const & p); 
+
+	template <typename T> 
+	detail::tquat<T> operator* ( 
+		detail::tquat<T> const & q, 
+		detail::tquat<T> const & p); 
+
+	template <typename T> 
+	detail::tvec3<T> operator* (
+		detail::tquat<T> const & q, 
+		detail::tvec3<T> const & v);
+
+	template <typename T> 
+	detail::tvec3<T> operator* (
+		detail::tvec3<T> const & v,
+		detail::tquat<T> const & q);
+
+	template <typename T> 
+	detail::tvec4<T> operator* (
+		detail::tquat<T> const & q, 
+		detail::tvec4<T> const & v);
+
+	template <typename T> 
+	detail::tvec4<T> operator* (
+		detail::tvec4<T> const & v,
+		detail::tquat<T> const & q);
+
+	template <typename T> 
+	detail::tquat<T> operator* (
+		detail::tquat<T> const & q, 
+		typename detail::tquat<T>::value_type const & s);
+
+	template <typename T> 
+	detail::tquat<T> operator* (
+		typename detail::tquat<T>::value_type const & s,
+		detail::tquat<T> const & q);
+
+	template <typename T> 
+	detail::tquat<T> operator/ (
+		detail::tquat<T> const & q, 
+		typename detail::tquat<T>::value_type const & s);
+
+} //namespace detail
+
+	/// @addtogroup gtc_quaternion
+	/// @{
+
+	/// Returns the length of the quaternion. 
+	/// 
+	/// @see gtc_quaternion
+	template <typename T> 
+	T length(
+		detail::tquat<T> const & q);
+
+	/// Returns the normalized quaternion. 
+	/// 
+	/// @see gtc_quaternion
+	template <typename T> 
+	detail::tquat<T> normalize(
+		detail::tquat<T> const & q);
+		
+	/// Returns dot product of q1 and q2, i.e., q1[0] * q2[0] + q1[1] * q2[1] + ... 
+	/// 
+	/// @see gtc_quaternion
+	template <typename T> 
+	T dot(
+		detail::tquat<T> const & q1, 
+		detail::tquat<T> const & q2);
+
+	/// Spherical linear interpolation of two quaternions.
+	/// The interpolation is oriented and the rotation is performed at constant speed.
+	/// For short path spherical linear interpolation, use the slerp function.
+	/// 
+	/// @param x A quaternion
+	/// @param y A quaternion
+	/// @param a Interpolation factor. The interpolation is defined beyond the range [0, 1].
+	/// @tparam T Value type used to build the quaternion. Supported: half, float or double.
+	/// @see gtc_quaternion
+	/// @see - slerp(detail::tquat<T> const & x, detail::tquat<T> const & y, T const & a) 
+	template <typename T> 
+	detail::tquat<T> mix(
+		detail::tquat<T> const & x, 
+		detail::tquat<T> const & y, 
+		T const & a);
+
+	/// Linear interpolation of two quaternions. 
+	/// The interpolation is oriented.
+	/// 
+	/// @param x A quaternion
+	/// @param y A quaternion
+	/// @param a Interpolation factor. The interpolation is defined in the range [0, 1].
+	/// @tparam T Value type used to build the quaternion. Supported: half, float or double.
+	/// @see gtc_quaternion
+	template <typename T> 
+	detail::tquat<T> lerp(
+		detail::tquat<T> const & x, 
+		detail::tquat<T> const & y, 
+		T const & a);
+
+	/// Spherical linear interpolation of two quaternions.
+	/// The interpolation always take the short path and the rotation is performed at constant speed.
+	/// 
+	/// @param x A quaternion
+	/// @param y A quaternion
+	/// @param a Interpolation factor. The interpolation is defined beyond the range [0, 1].
+	/// @tparam T Value type used to build the quaternion. Supported: half, float or double.
+	/// @see gtc_quaternion
+	template <typename T> 
+	detail::tquat<T> slerp(
+		detail::tquat<T> const & x, 
+		detail::tquat<T> const & y, 
+		T const & a);
+
+	/// Returns the q conjugate. 
+	/// 
+	/// @see gtc_quaternion
+	template <typename T> 
+	detail::tquat<T> conjugate(
+		detail::tquat<T> const & q);
+
+	/// Returns the q inverse. 
+	/// 
+	/// @see gtc_quaternion
+	template <typename T> 
+	detail::tquat<T> inverse(
+		detail::tquat<T> const & q);
+
+	/// Rotates a quaternion from an vector of 3 components axis and an angle.
+	/// 
+	/// @param q Source orientation
+	/// @param angle Angle expressed in radians if GLM_FORCE_RADIANS is define or degrees otherwise.
+	/// @param axis Axis of the rotation, must be normalized.
+	/// 
+	/// @see gtc_quaternion
+	template <typename T> 
+	detail::tquat<T> rotate(
+		detail::tquat<T> const & q, 
+		typename detail::tquat<T>::value_type const & angle, 
+		detail::tvec3<T> const & axis);
+
+	/// Returns euler angles, yitch as x, yaw as y, roll as z. 
+	/// 
+	/// @see gtc_quaternion
+	template <typename T> 
+	detail::tvec3<T> eulerAngles(
+		detail::tquat<T> const & x);
+
+	/// Returns roll value of euler angles expressed in radians if GLM_FORCE_RADIANS is define or degrees otherwise.
+	///
+	/// @see gtx_quaternion
+	template <typename valType> 
+	valType roll(
+		detail::tquat<valType> const & x);
+
+	/// Returns pitch value of euler angles expressed in radians if GLM_FORCE_RADIANS is define or degrees otherwise.
+	///
+	/// @see gtx_quaternion
+	template <typename valType> 
+	valType pitch(
+		detail::tquat<valType> const & x);
+
+	/// Returns yaw value of euler angles expressed in radians if GLM_FORCE_RADIANS is define or degrees otherwise.
+	///
+	/// @see gtx_quaternion
+	template <typename valType> 
+	valType yaw(
+		detail::tquat<valType> const & x);
+
+	/// Converts a quaternion to a 3 * 3 matrix. 
+	/// 
+	/// @see gtc_quaternion
+	template <typename T> 
+	detail::tmat3x3<T> mat3_cast(
+		detail::tquat<T> const & x);
+
+	/// Converts a quaternion to a 4 * 4 matrix. 
+	/// 
+	/// @see gtc_quaternion
+	template <typename T> 
+	detail::tmat4x4<T> mat4_cast(
+		detail::tquat<T> const & x);
+
+	/// Converts a 3 * 3 matrix to a quaternion. 
+	/// 
+	/// @see gtc_quaternion
+	template <typename T> 
+	detail::tquat<T> quat_cast(
+		detail::tmat3x3<T> const & x);
+
+	/// Converts a 4 * 4 matrix to a quaternion. 
+	/// 
+	/// @see gtc_quaternion
+	template <typename T> 
+	detail::tquat<T> quat_cast(
+		detail::tmat4x4<T> const & x);
+
+	/// Returns the quaternion rotation angle. 
+	///
+	/// @see gtc_quaternion
+	template <typename valType> 
+	valType angle(
+		detail::tquat<valType> const & x);
+
+	/// Returns the q rotation axis. 
+	///
+	/// @see gtc_quaternion
+	template <typename valType> 
+	detail::tvec3<valType> axis(
+		detail::tquat<valType> const & x);
+
+	/// Build a quaternion from an angle and a normalized axis. 
+	///
+	/// @param angle Angle expressed in radians if GLM_FORCE_RADIANS is define or degrees otherwise.
+	/// @param x x component of the x-axis, x, y, z must be a normalized axis
+	/// @param y y component of the y-axis, x, y, z must be a normalized axis
+	/// @param z z component of the z-axis, x, y, z must be a normalized axis
+	///
+	/// @see gtc_quaternion
+	template <typename valType> 
+	detail::tquat<valType> angleAxis(
+		valType const & angle, 
+		valType const & x, 
+		valType const & y, 
+		valType const & z);
+
+	/// Build a quaternion from an angle and a normalized axis.
+	///
+	/// @param angle Angle expressed in radians if GLM_FORCE_RADIANS is define or degrees otherwise.
+	/// @param axis Axis of the quaternion, must be normalized. 
+	///
+	/// @see gtc_quaternion
+	template <typename valType> 
+	detail::tquat<valType> angleAxis(
+		valType const & angle, 
+		detail::tvec3<valType> const & axis);
+
+	/// Quaternion of floating-point numbers. 
+	/// 
+	/// @see gtc_quaternion
+	typedef detail::tquat<float> quat;
+
+	/// Quaternion of half-precision floating-point numbers.
+	/// 
+	/// @see gtc_quaternion
+	typedef detail::tquat<detail::half>	hquat;
+
+	/// Quaternion of single-precision floating-point numbers. 
+	/// 
+	/// @see gtc_quaternion
+	typedef detail::tquat<float>	fquat;
+
+	/// Quaternion of double-precision floating-point numbers. 
+	/// 
+	/// @see gtc_quaternion
+	typedef detail::tquat<double>	dquat;
+
+	/// Quaternion of low precision floating-point numbers.
+	/// 
+	/// @see gtc_quaternion
+	typedef detail::tquat<lowp_float>		lowp_quat;
+
+	/// Quaternion of medium precision floating-point numbers. 
+	/// 
+	/// @see gtc_quaternion
+	typedef detail::tquat<mediump_float>	mediump_quat;
+
+	/// Quaternion of high precision floating-point numbers. 
+	/// 
+	/// @see gtc_quaternion
+	typedef detail::tquat<highp_float>		highp_quat;
+
+	/// @}
+} //namespace glm
+
+#include "quaternion.inl"
+
+#endif//GLM_GTC_quaternion