tests: Check glm into source control to make Windows build simpler
diff --git a/libs/glm/gtx/integer.hpp b/libs/glm/gtx/integer.hpp
new file mode 100644
index 0000000..21c3912
--- /dev/null
+++ b/libs/glm/gtx/integer.hpp
@@ -0,0 +1,104 @@
+///////////////////////////////////////////////////////////////////////////////////
+/// OpenGL Mathematics (glm.g-truc.net)
+///
+/// Copyright (c) 2005 - 2014 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_integer
+/// @file glm/gtx/integer.hpp
+/// @date 2005-12-24 / 2011-10-13
+/// @author Christophe Riccio
+///
+/// @see core (dependence)
+///
+/// @defgroup gtx_integer GLM_GTX_integer
+/// @ingroup gtx
+///
+/// @brief Add support for integer for core functions
+///
+/// <glm/gtx/integer.hpp> need to be included to use these functionalities.
+///////////////////////////////////////////////////////////////////////////////////
+
+#ifndef GLM_GTX_integer
+#define GLM_GTX_integer
+
+// Dependency:
+#include "../glm.hpp"
+
+#if(defined(GLM_MESSAGES) && !defined(GLM_EXT_INCLUDED))
+# pragma message("GLM: GLM_GTX_integer extension included")
+#endif
+
+namespace glm
+{
+ /// @addtogroup gtx_integer
+ /// @{
+
+ //! Returns x raised to the y power.
+ //! From GLM_GTX_integer extension.
+ GLM_FUNC_DECL int pow(int x, int y);
+
+ //! Returns the positive square root of x.
+ //! From GLM_GTX_integer extension.
+ GLM_FUNC_DECL int sqrt(int x);
+
+ //! Returns the log2 of x. Can be reliably using to compute mipmap count from the texture size.
+ //! From GLM_GTX_integer extension.
+ template <typename genIUType>
+ GLM_FUNC_DECL genIUType log2(genIUType x);
+
+ //! Returns the floor log2 of x.
+ //! From GLM_GTX_integer extension.
+ GLM_FUNC_DECL unsigned int floor_log2(unsigned int x);
+
+ //! Modulus. Returns x - y * floor(x / y) for each component in x using the floating point value y.
+ //! From GLM_GTX_integer extension.
+ GLM_FUNC_DECL int mod(int x, int y);
+
+ //! Return the factorial value of a number (!12 max, integer only)
+ //! From GLM_GTX_integer extension.
+ template <typename genType>
+ GLM_FUNC_DECL genType factorial(genType const & x);
+
+ //! 32bit signed integer.
+ //! From GLM_GTX_integer extension.
+ typedef signed int sint;
+
+ //! Returns x raised to the y power.
+ //! From GLM_GTX_integer extension.
+ GLM_FUNC_DECL uint pow(uint x, uint y);
+
+ //! Returns the positive square root of x.
+ //! From GLM_GTX_integer extension.
+ GLM_FUNC_DECL uint sqrt(uint x);
+
+ //! Modulus. Returns x - y * floor(x / y) for each component in x using the floating point value y.
+ //! From GLM_GTX_integer extension.
+ GLM_FUNC_DECL uint mod(uint x, uint y);
+
+ //! Returns the number of leading zeros.
+ //! From GLM_GTX_integer extension.
+ GLM_FUNC_DECL uint nlz(uint x);
+
+ /// @}
+}//namespace glm
+
+#include "integer.inl"
+
+#endif//GLM_GTX_integer