1 files changed, 86 insertions, 0 deletions
diff --git a/src/SFML/Graphics/Glsl.cpp b/src/SFML/Graphics/Glsl.cpp
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+////////////////////////////////////////////////////////////
+//
+// SFML - Simple and Fast Multimedia Library
+// Copyright (C) 2007-2016 Laurent Gomila (laurent@sfml-dev.org)
+//
+// This software is provided 'as-is', without any express or implied warranty.
+// In no event will the authors be held liable for any damages arising from the use of this software.
+//
+// Permission is granted to anyone to use this software for any purpose,
+// including commercial applications, and to alter it and redistribute it freely,
+// subject to the following restrictions:
+//
+// 1. The origin of this software must not be misrepresented;
+//    you must not claim that you wrote the original software.
+//    If you use this software in a product, an acknowledgment
+//    in the product documentation would be appreciated but is not required.
+//
+// 2. Altered source versions must be plainly marked as such,
+//    and must not be misrepresented as being the original software.
+//
+// 3. This notice may not be removed or altered from any source distribution.
+//
+////////////////////////////////////////////////////////////
+
+
+////////////////////////////////////////////////////////////
+// Headers
+////////////////////////////////////////////////////////////
+#include <SFML/Graphics/Glsl.hpp>
+#include <algorithm>
+
+
+namespace sf
+{
+namespace priv
+{
+
+    ////////////////////////////////////////////////////////////
+    void copyMatrix(const Transform& source, Matrix<3, 3>& dest)
+    {
+        const float* from = source.getMatrix(); // 4x4
+        float* to = dest.array;                 // 3x3
+
+        // Use only left-upper 3x3 block (for a 2D transform)
+        to[0] = from[ 0]; to[1] = from[ 1]; to[2] = from[ 3];
+        to[3] = from[ 4]; to[4] = from[ 5]; to[5] = from[ 7];
+        to[6] = from[12]; to[7] = from[13]; to[8] = from[15];
+    }
+
+
+    ////////////////////////////////////////////////////////////
+    void copyMatrix(const Transform& source, Matrix<4, 4>& dest)
+    {
+        // Adopt 4x4 matrix as-is
+        copyMatrix(source.getMatrix(), 4 * 4, dest.array);
+    }
+
+
+    ////////////////////////////////////////////////////////////
+    void copyMatrix(const float* source, std::size_t elements, float* dest)
+    {
+        std::copy(source, source + elements, dest);
+    }
+
+
+    ////////////////////////////////////////////////////////////
+    void copyVector(const Color& source, Vector4<float>& dest)
+    {
+        dest.x = source.r / 255.f;
+        dest.y = source.g / 255.f;
+        dest.z = source.b / 255.f;
+        dest.w = source.a / 255.f;
+    }
+
+
+    ////////////////////////////////////////////////////////////
+    void copyVector(const Color& source, Vector4<int>& dest)
+    {
+        dest.x = static_cast<int>(source.r);
+        dest.y = static_cast<int>(source.g);
+        dest.z = static_cast<int>(source.b);
+        dest.w = static_cast<int>(source.a);
+    }
+
+} // namespace priv
+} // namespace sf