From c068f22329d5cc722622a2183bbb22eef2093df7 Mon Sep 17 00:00:00 2001
From: Felix Morgner <felix.morgner@gmail.com>
Date: Mon, 24 Aug 2026 11:16:07 +0200
Subject: initial import

---
 src/libraries/glm/gtx/matrix_query.inl | 154 +++++++++++++++++++++++++++++++++
 1 file changed, 154 insertions(+)
 create mode 100755 src/libraries/glm/gtx/matrix_query.inl

(limited to 'src/libraries/glm/gtx/matrix_query.inl')

diff --git a/src/libraries/glm/gtx/matrix_query.inl b/src/libraries/glm/gtx/matrix_query.inl
new file mode 100755
index 0000000..52eabe9
--- /dev/null
+++ b/src/libraries/glm/gtx/matrix_query.inl
@@ -0,0 +1,154 @@
+///////////////////////////////////////////////////////////////////////////////////////////////////
+// OpenGL Mathematics Copyright (c) 2005 - 2012 G-Truc Creation (www.g-truc.net)
+///////////////////////////////////////////////////////////////////////////////////////////////////
+// Created : 2007-03-05
+// Updated : 2007-03-05
+// Licence : This source is under MIT License
+// File    : glm/gtx/matrix_query.inl
+///////////////////////////////////////////////////////////////////////////////////////////////////
+// Dependency:
+// - GLM core
+///////////////////////////////////////////////////////////////////////////////////////////////////
+
+namespace glm
+{
+	template<typename T> 
+	GLM_FUNC_QUALIFIER bool isNull
+	(
+		detail::tmat2x2<T> const & m, 
+		T const & epsilon)
+	{
+		bool result = true;
+		for(int i = 0; result && i < 2 ; ++i)
+			result = isNull(m[i], epsilon);
+		return result;
+	}
+
+	template<typename T> 
+	GLM_FUNC_QUALIFIER bool isNull
+	(
+		detail::tmat3x3<T> const & m, 
+		T const & epsilon
+	)
+	{
+		bool result = true;
+		for(int i = 0; result && i < 3 ; ++i)
+			result = isNull(m[i], epsilon);
+		return result;
+	}
+
+	template<typename T> 
+	GLM_FUNC_QUALIFIER bool isNull
+	(
+		detail::tmat4x4<T> const & m, 
+		T const & epsilon
+	)
+	{
+		bool result = true;
+		for(int i = 0; result && i < 4 ; ++i)
+			result = isNull(m[i], epsilon);
+		return result;
+	}
+
+	template<typename genType> 
+	GLM_FUNC_QUALIFIER bool isIdentity
+	(
+		genType const & m, 
+		typename genType::value_type const & epsilon
+	)
+	{
+		bool result = true;
+		for(typename genType::size_type i = typename genType::size_type(0); result && i < genType::col_size(); ++i)
+		{
+			for(typename genType::size_type j = typename genType::size_type(0); result && j < i ; ++j)
+				result = abs(m[i][j]) <= epsilon;
+			if(result)
+				result = abs(m[i][i] - typename genType::value_type(1)) <= epsilon;
+			for(typename genType::size_type j = i + typename genType::size_type(1); result && j < genType::row_size(); ++j)
+				result = abs(m[i][j]) <= epsilon;
+		}
+		return result;
+	}
+
+	template<typename genType>  
+	GLM_FUNC_QUALIFIER bool isNormalized
+	(
+		detail::tmat2x2<genType> const & m, 
+		genType const & epsilon
+	)
+	{
+		bool result(true);
+                for(typename detail::tmat2x2<genType>::size_type i(0); result && i < m.length(); ++i)
+			result = isNormalized(m[i], epsilon);
+                for(typename detail::tmat2x2<genType>::size_type i(0); result && i < m.length(); ++i)
+		{
+                        typename detail::tmat2x2<genType>::col_type v;
+                        for(typename detail::tmat2x2<genType>::size_type j(0); j < m.length(); ++j)
+				v[j] = m[j][i];
+			result = isNormalized(v, epsilon);
+		}
+		return result;
+	}
+
+	template<typename genType>  
+	GLM_FUNC_QUALIFIER bool isNormalized
+	(
+		detail::tmat3x3<genType> const & m, 
+		genType const & epsilon
+	)
+	{
+		bool result(true);
+                for(typename detail::tmat3x3<genType>::size_type i(0); result && i < m.length(); ++i)
+			result = isNormalized(m[i], epsilon);
+                for(typename detail::tmat3x3<genType>::size_type i(0); result && i < m.length(); ++i)
+		{
+                        typename detail::tmat3x3<genType>::col_type v;
+                        for(typename detail::tmat3x3<genType>::size_type j(0); j < m.length(); ++j)
+				v[j] = m[j][i];
+			result = isNormalized(v, epsilon);
+		}
+		return result;
+	}
+
+	template<typename genType>  
+	GLM_FUNC_QUALIFIER bool isNormalized
+	(
+		detail::tmat4x4<genType> const & m, 
+		genType const & epsilon
+	)
+	{
+		bool result(true);
+                for(typename detail::tmat4x4<genType>::size_type i(0); result && i < m.length(); ++i)
+			result = isNormalized(m[i], epsilon);
+                for(typename detail::tmat4x4<genType>::size_type i(0); result && i < m.length(); ++i)
+		{
+                        typename detail::tmat4x4<genType>::col_type v;
+                        for(typename detail::tmat4x4<genType>::size_type j(0); j < m.length(); ++j)
+				v[j] = m[j][i];
+			result = isNormalized(v, epsilon);
+		}
+		return result;
+	}
+
+	template<typename genType, template <typename> class matType>  
+	GLM_FUNC_QUALIFIER bool isOrthogonal
+	(
+		matType<genType> const & m, 
+		genType const & epsilon
+	)
+	{
+		bool result(true);
+		for(typename matType<genType>::size_type i(0); result && i < m.length() - 1; ++i)
+		for(typename matType<genType>::size_type j(i + 1); result && j < m.length(); ++j)
+			result = areOrthogonal(m[i], m[j], epsilon);
+
+		if(result)
+		{
+			matType<genType> tmp = transpose(m);
+			for(typename matType<genType>::size_type i(0); result && i < m.length() - 1 ; ++i)
+			for(typename matType<genType>::size_type j(i + 1); result && j < m.length(); ++j)
+				result = areOrthogonal(tmp[i], tmp[j], epsilon);
+		}
+		return result;
+	}
+}//namespace glm
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