Glsl.inl

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//
// SFML - Simple and Fast Multimedia Library
// Copyright (C) 2007-2018 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.
//
 
 
void SFML_GRAPHICS_API copyMatrix(const Transform& source, Matrix<3, 3>& dest);
void SFML_GRAPHICS_API copyMatrix(const Transform& source, Matrix<4, 4>& dest);
 
void SFML_GRAPHICS_API copyMatrix(const float* source, std::size_t elements, float* dest);
 
void SFML_GRAPHICS_API copyVector(const Color& source, Vector4<float>& dest);
void SFML_GRAPHICS_API copyVector(const Color& source, Vector4<int>& dest);
 
 
template <std::size_t Columns, std::size_t Rows>
struct Matrix
{
    explicit Matrix(const float* pointer)
    {
        copyMatrix(pointer, Columns * Rows, array);
    }
 
    Matrix(const Transform& transform)
    {
        copyMatrix(transform, *this);
    }
 
    float array[Columns * Rows]; 
};
 
template <typename T>
struct Vector4
{
    Vector4() :
    x(0),
    y(0),
    z(0),
    w(0)
    {
    }
 
    Vector4(T X, T Y, T Z, T W) :
    x(X),
    y(Y),
    z(Z),
    w(W)
    {
    }
 
    template <typename U>
    explicit Vector4(const Vector4<U>& other) :
    x(static_cast<T>(other.x)),
    y(static_cast<T>(other.y)),
    z(static_cast<T>(other.z)),
    w(static_cast<T>(other.w))
    {
    }
 
    Vector4(const Color& color)
    // uninitialized
    {
        copyVector(color, *this);
    }
 
    T x; 
    T y; 
    T z; 
    T w; 
};