Updated GLI version used in GLM tests

test/external/gli/sampler.hpp

@@ -0,0 +1,49 @@
+/// @brief Include to use wrap modes and the sampler base class.
+/// @file gli/sampler.hpp
+
+#pragma once
+
+#include "core/filter.hpp"
+
+namespace gli
+{
+	/// Texture coordinate wrapping mode
+	enum wrap
+	{
+		WRAP_CLAMP_TO_EDGE, WRAP_FIRST = WRAP_CLAMP_TO_EDGE,
+		WRAP_CLAMP_TO_BORDER,
+		WRAP_REPEAT,
+		WRAP_MIRROR_REPEAT,
+		WRAP_MIRROR_CLAMP_TO_EDGE,
+		WRAP_MIRROR_CLAMP_TO_BORDER, WRAP_LAST = WRAP_MIRROR_CLAMP_TO_BORDER
+	};
+
+	enum
+	{
+		WRAP_COUNT = WRAP_LAST - WRAP_FIRST + 1
+	};
+
+	/// Evaluate whether the texture coordinate wrapping mode relies on border color
+	inline bool is_border(wrap Wrap)
+	{
+		return Wrap == WRAP_CLAMP_TO_BORDER || Wrap == WRAP_MIRROR_CLAMP_TO_BORDER;
+	}
+
+	/// Genetic sampler class.
+	class sampler
+	{
+	public:
+		sampler(wrap Wrap, filter Mip, filter Min);
+
+	protected:
+		typedef float(*wrap_type)(float const & SamplerCoord);
+
+		wrap_type get_func(wrap WrapMode) const;
+
+		wrap_type Wrap;
+		filter Mip;
+		filter Min;
+	};
+}//namespace gli
+
+#include "./core/sampler.inl"