Merge pull request #4 from FOSSEE/develop

merging dev into master

1 files changed, 164 insertions, 0 deletions

diff --git a/include/gal/opengl/glm/gtx/vector_query.inl b/include/gal/opengl/glm/gtx/vector_query.inl
new file mode 100644
index 0000000..c955315
--- /dev/null
+++ b/include/gal/opengl/glm/gtx/vector_query.inl
@@ -0,0 +1,164 @@
+///////////////////////////////////////////////////////////////////////////////////////////////////
+// OpenGL Mathematics Copyright (c) 2005 - 2013 G-Truc Creation (www.g-truc.net)
+///////////////////////////////////////////////////////////////////////////////////////////////////
+// Created : 2007-03-05
+// Updated : 2010-02-16
+// Licence : This source is under MIT License
+// File    : glm/gtx/vector_query.inl
+///////////////////////////////////////////////////////////////////////////////////////////////////
+// Dependency:
+// - GLM core
+///////////////////////////////////////////////////////////////////////////////////////////////////
+
+#include <cassert>
+
+namespace glm
+{
+	template <typename T>
+	GLM_FUNC_QUALIFIER bool areCollinear
+	(
+		detail::tvec2<T> const & v0, 
+		detail::tvec2<T> const & v1, 
+		typename detail::tvec2<T>::value_type const & epsilon
+	)
+	{
+		return length(cross(detail::tvec3<T>(v0, T(0)), detail::tvec3<T>(v1, T(0)))) < epsilon;
+	}
+
+	template <typename T>
+	GLM_FUNC_QUALIFIER bool areCollinear
+	(
+		detail::tvec3<T> const & v0, 
+		detail::tvec3<T> const & v1, 
+		typename detail::tvec3<T>::value_type const & epsilon
+	)
+	{
+		return length(cross(v0, v1)) < epsilon;
+	}
+
+	template <typename T>
+	GLM_FUNC_QUALIFIER bool areCollinear
+	(
+		detail::tvec4<T> const & v0, 
+		detail::tvec4<T> const & v1, 
+		typename detail::tvec4<T>::value_type const & epsilon
+	)
+	{
+		return length(cross(detail::tvec3<T>(v0), detail::tvec3<T>(v1))) < epsilon;
+	}
+
+	template <typename genType>
+	GLM_FUNC_QUALIFIER bool areOrthogonal
+	(
+		genType const & v0, 
+		genType const & v1, 
+		typename genType::value_type const & epsilon
+	)
+	{
+		return abs(dot(v0, v1)) <= max(
+			typename genType::value_type(1), 
+			length(v0)) * max(
+				typename genType::value_type(1), 
+				length(v1)) * epsilon;
+	}
+
+	template <typename genType, template <typename> class vecType> 
+	GLM_FUNC_QUALIFIER bool isNormalized
+	(
+		vecType<genType> const & v, 
+		genType const & epsilon
+	)
+	{
+		return abs(length(v) - genType(1)) <= genType(2) * epsilon;
+	}
+
+	template <typename valType> 
+	GLM_FUNC_QUALIFIER bool isNull
+	(
+		detail::tvec2<valType> const & v, 
+		valType const & epsilon
+	)
+	{
+		return length(v) <= epsilon;
+	}
+
+	template <typename valType> 
+	GLM_FUNC_QUALIFIER bool isNull
+	(
+		detail::tvec3<valType> const & v, 
+		valType const & epsilon
+	)
+	{
+		return length(v) <= epsilon;
+	}
+
+	template <typename valType> 
+	GLM_FUNC_QUALIFIER bool isNull
+	(
+		detail::tvec4<valType> const & v, 
+		valType const & epsilon
+	)
+	{
+		return length(v) <= epsilon;
+	}
+
+	template <typename T> 
+	GLM_FUNC_QUALIFIER bool isCompNull
+	(
+		T const & s, 
+		T const & epsilon
+	)
+	{
+		return abs(s) < epsilon;
+	}
+
+	template <typename T> 
+	GLM_FUNC_QUALIFIER detail::tvec2<bool> isCompNull
+	(
+		detail::tvec2<T> const & v, 
+		T const & epsilon)
+	{
+		return detail::tvec2<bool>(
+			(abs(v.x) < epsilon),
+			(abs(v.y) < epsilon));
+	}
+
+	template <typename T> 
+	GLM_FUNC_QUALIFIER detail::tvec3<bool> isCompNull
+	(
+		detail::tvec3<T> const & v, 
+		T const & epsilon
+	)
+	{
+		return detail::tvec3<bool>(
+			abs(v.x) < epsilon,
+			abs(v.y) < epsilon,
+			abs(v.z) < epsilon);
+	}
+
+	template <typename T> 
+	GLM_FUNC_QUALIFIER detail::tvec4<bool> isCompNull
+	(
+		detail::tvec4<T> const & v, 
+		T const & epsilon
+	)
+	{
+		return detail::tvec4<bool>(
+			abs(v.x) < epsilon,
+			abs(v.y) < epsilon,
+			abs(v.z) < epsilon,
+			abs(v.w) < epsilon);
+	}
+
+	template <typename genType>
+	GLM_FUNC_QUALIFIER bool areOrthonormal
+	(
+		genType const & v0, 
+		genType const & v1, 
+		typename genType::value_type const & epsilon
+	)
+	{
+		return isNormalized(v0, epsilon) && isNormalized(v1, epsilon) && (abs(dot(v0, v1)) <= epsilon);
+	}
+
+}//namespace glm