Merge pull request #4 from FOSSEE/develop

merging dev into master

1 files changed, 195 insertions, 0 deletions

diff --git a/include/gal/opengl/glm/gtx/quaternion.hpp b/include/gal/opengl/glm/gtx/quaternion.hpp
new file mode 100644
index 0000000..3c9e8b0
--- /dev/null
+++ b/include/gal/opengl/glm/gtx/quaternion.hpp
@@ -0,0 +1,195 @@
+///////////////////////////////////////////////////////////////////////////////////
+/// 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 gtx_quaternion
+/// @file glm/gtx/quaternion.hpp
+/// @date 2005-12-21 / 2011-06-07
+/// @author Christophe Riccio
+///
+/// @see core (dependence)
+/// @see gtx_extented_min_max (dependence)
+///
+/// @defgroup gtx_quaternion GLM_GTX_quaternion
+/// @ingroup gtx
+/// 
+/// @brief Extented quaternion types and functions
+/// 
+/// <glm/gtx/quaternion.hpp> need to be included to use these functionalities.
+///////////////////////////////////////////////////////////////////////////////////
+
+#ifndef GLM_GTX_quaternion
+#define GLM_GTX_quaternion GLM_VERSION
+
+// Dependency:
+#include "../glm.hpp"
+#include "../gtc/quaternion.hpp"
+
+#if(defined(GLM_MESSAGES) && !defined(glm_ext))
+#	pragma message("GLM: GLM_GTX_quaternion extension included")
+#endif
+
+namespace glm
+{
+	/// @addtogroup gtx_quaternion
+	/// @{
+
+	//! Compute a cross product between a quaternion and a vector. 
+	///
+	/// @see gtx_quaternion
+	template <typename valType> 
+	detail::tvec3<valType> cross(
+		detail::tquat<valType> const & q, 
+		detail::tvec3<valType> const & v);
+
+	//! Compute a cross product between a vector and a quaternion.
+	///
+	/// @see gtx_quaternion
+	template <typename valType> 
+	detail::tvec3<valType> cross(
+		detail::tvec3<valType> const & v, 
+		detail::tquat<valType> const & q);
+
+	//! Compute a point on a path according squad equation. 
+	//! q1 and q2 are control points; s1 and s2 are intermediate control points.
+	///
+	/// @see gtx_quaternion
+	template <typename valType> 
+	detail::tquat<valType> squad(
+		detail::tquat<valType> const & q1, 
+		detail::tquat<valType> const & q2, 
+		detail::tquat<valType> const & s1, 
+		detail::tquat<valType> const & s2, 
+		valType const & h);
+
+	//! Returns an intermediate control point for squad interpolation.
+	///
+	/// @see gtx_quaternion
+	template <typename valType> 
+	detail::tquat<valType> intermediate(
+		detail::tquat<valType> const & prev, 
+		detail::tquat<valType> const & curr, 
+		detail::tquat<valType> const & next);
+
+	//! Returns a exp of a quaternion. 
+	///
+	/// @see gtx_quaternion
+    template <typename valType> 
+	detail::tquat<valType> exp(
+		detail::tquat<valType> const & q);
+
+	//! Returns a log of a quaternion. 
+	///
+	/// @see gtx_quaternion
+    template <typename valType> 
+	detail::tquat<valType> log(
+		detail::tquat<valType> const & q);
+
+	/// Returns x raised to the y power.
+	///
+	/// @see gtx_quaternion
+    template <typename valType> 
+	detail::tquat<valType> pow(
+		detail::tquat<valType> const & x, 
+		valType const & y);
+
+	//! Returns quarternion square root.
+	///
+	/// @see gtx_quaternion
+	//template <typename valType> 
+	//detail::tquat<valType> sqrt(
+	//	detail::tquat<valType> const & q);
+
+	//! Rotates a 3 components vector by a quaternion. 
+	///
+	/// @see gtx_quaternion
+	template <typename valType> 
+	detail::tvec3<valType> rotate(
+		detail::tquat<valType> const & q, 
+		detail::tvec3<valType> const & v);
+
+	/// Rotates a 4 components vector by a quaternion.
+	///
+	/// @see gtx_quaternion
+	template <typename valType> 
+	detail::tvec4<valType> rotate(
+		detail::tquat<valType> const & q, 
+		detail::tvec4<valType> const & v);
+
+	/// Extract the real component of a quaternion.
+	///
+	/// @see gtx_quaternion
+	template <typename valType> 
+	valType extractRealComponent(
+		detail::tquat<valType> const & q);
+
+	/// Converts a quaternion to a 3 * 3 matrix. 
+	///
+	/// @see gtx_quaternion
+	template <typename valType> 
+	detail::tmat3x3<valType> toMat3(
+		detail::tquat<valType> const & x){return mat3_cast(x);}
+
+	/// Converts a quaternion to a 4 * 4 matrix. 
+	///
+	/// @see gtx_quaternion
+	template <typename valType> 
+	detail::tmat4x4<valType> toMat4(
+		detail::tquat<valType> const & x){return mat4_cast(x);}
+
+	/// Converts a 3 * 3 matrix to a quaternion. 
+	///
+	/// @see gtx_quaternion
+	template <typename valType> 
+	detail::tquat<valType> toQuat(
+		detail::tmat3x3<valType> const & x){return quat_cast(x);}
+
+	/// Converts a 4 * 4 matrix to a quaternion. 
+	///
+	/// @see gtx_quaternion
+	template <typename valType> 
+	detail::tquat<valType> toQuat(
+		detail::tmat4x4<valType> const & x){return quat_cast(x);}
+
+	/// Quaternion interpolation using the rotation short path. 
+	///
+	/// @see gtx_quaternion
+	template <typename T>
+	detail::tquat<T> shortMix(
+		detail::tquat<T> const & x, 
+		detail::tquat<T> const & y, 
+		T const & a);
+
+	/// Quaternion normalized linear interpolation. 
+	///
+	/// @see gtx_quaternion
+	template <typename T>
+	detail::tquat<T> fastMix(
+		detail::tquat<T> const & x, 
+		detail::tquat<T> const & y, 
+		T const & a);
+
+	/// @}
+}//namespace glm
+
+#include "quaternion.inl"
+
+#endif//GLM_GTX_quaternion