1 files changed, 114 insertions, 0 deletions

diff --git a/external/include/glm/gtx/matrix_query.inl b/external/include/glm/gtx/matrix_query.inl
new file mode 100644
index 0000000..491b774
--- /dev/null
+++ b/external/include/glm/gtx/matrix_query.inl
@@ -0,0 +1,114 @@
+/// @ref gtx_matrix_query
+/// @file glm/gtx/matrix_query.inl
+
+namespace glm
+{
+	template<typename T, precision P>
+	GLM_FUNC_QUALIFIER bool isNull(tmat2x2<T, P> const & m, T const & epsilon)
+	{
+		bool result = true;
+		for(length_t i = 0; result && i < m.length() ; ++i)
+			result = isNull(m[i], epsilon);
+		return result;
+	}
+
+	template<typename T, precision P>
+	GLM_FUNC_QUALIFIER bool isNull(tmat3x3<T, P> const & m, T const & epsilon)
+	{
+		bool result = true;
+		for(length_t i = 0; result && i < m.length() ; ++i)
+			result = isNull(m[i], epsilon);
+		return result;
+	}
+
+	template<typename T, precision P>
+	GLM_FUNC_QUALIFIER bool isNull(tmat4x4<T, P> const & m, T const & epsilon)
+	{
+		bool result = true;
+		for(length_t i = 0; result && i < m.length() ; ++i)
+			result = isNull(m[i], epsilon);
+		return result;
+	}
+
+	template<typename T, precision P, template <typename, precision> class matType>
+	GLM_FUNC_QUALIFIER bool isIdentity(matType<T, P> const & m, T const & epsilon)
+	{
+		bool result = true;
+		for(length_t i = 0; result && i < m[0].length() ; ++i)
+		{
+			for(length_t j = 0; result && j < i ; ++j)
+				result = abs(m[i][j]) <= epsilon;
+			if(result)
+				result = abs(m[i][i] - 1) <= epsilon;
+			for(length_t j = i + 1; result && j < m.length(); ++j)
+				result = abs(m[i][j]) <= epsilon;
+		}
+		return result;
+	}
+
+	template<typename T, precision P>
+	GLM_FUNC_QUALIFIER bool isNormalized(tmat2x2<T, P> const & m, T const & epsilon)
+	{
+		bool result(true);
+		for(length_t i = 0; result && i < m.length(); ++i)
+			result = isNormalized(m[i], epsilon);
+		for(length_t i = 0; result && i < m.length(); ++i)
+		{
+			typename tmat2x2<T, P>::col_type v;
+			for(length_t j = 0; j < m.length(); ++j)
+				v[j] = m[j][i];
+			result = isNormalized(v, epsilon);
+		}
+		return result;
+	}
+
+	template<typename T, precision P>
+	GLM_FUNC_QUALIFIER bool isNormalized(tmat3x3<T, P> const & m, T const & epsilon)
+	{
+		bool result(true);
+		for(length_t i = 0; result && i < m.length(); ++i)
+			result = isNormalized(m[i], epsilon);
+		for(length_t i = 0; result && i < m.length(); ++i)
+		{
+			typename tmat3x3<T, P>::col_type v;
+			for(length_t j = 0; j < m.length(); ++j)
+				v[j] = m[j][i];
+			result = isNormalized(v, epsilon);
+		}
+		return result;
+	}
+
+	template<typename T, precision P>
+	GLM_FUNC_QUALIFIER bool isNormalized(tmat4x4<T, P> const & m, T const & epsilon)
+	{
+		bool result(true);
+		for(length_t i = 0; result && i < m.length(); ++i)
+			result = isNormalized(m[i], epsilon);
+		for(length_t i = 0; result && i < m.length(); ++i)
+		{
+			typename tmat4x4<T, P>::col_type v;
+			for(length_t j = 0; j < m.length(); ++j)
+				v[j] = m[j][i];
+			result = isNormalized(v, epsilon);
+		}
+		return result;
+	}
+
+	template<typename T, precision P, template <typename, precision> class matType>
+	GLM_FUNC_QUALIFIER bool isOrthogonal(matType<T, P> const & m, T const & epsilon)
+	{
+		bool result(true);
+		for(length_t i(0); result && i < m.length() - 1; ++i)
+		for(length_t j(i + 1); result && j < m.length(); ++j)
+			result = areOrthogonal(m[i], m[j], epsilon);
+
+		if(result)
+		{
+			matType<T, P> tmp = transpose(m);
+			for(length_t i(0); result && i < m.length() - 1 ; ++i)
+			for(length_t j(i + 1); result && j < m.length(); ++j)
+				result = areOrthogonal(tmp[i], tmp[j], epsilon);
+		}
+		return result;
+	}
+}//namespace glm