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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
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