64 lines
1.1 KiB
C++
64 lines
1.1 KiB
C++
/*
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SPDX-FileCopyrightText: 2010 Fredrik Höglund <fredrik@kde.org>
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SPDX-FileCopyrightText: 2014 Marco Martin <mart@kde.org>
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SPDX-License-Identifier: GPL-2.0-or-later
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*/
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#ifndef CONTRASTSHADER_H
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#define CONTRASTSHADER_H
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#include <kwinglutils.h>
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class QMatrix4x4;
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namespace KWin
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{
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class ContrastShader
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{
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public:
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ContrastShader();
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virtual ~ContrastShader();
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void init();
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static ContrastShader *create();
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bool isValid() const {
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return mValid;
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}
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void setColorMatrix(const QMatrix4x4 &matrix);
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void setTextureMatrix(const QMatrix4x4 &matrix);
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void setModelViewProjectionMatrix(const QMatrix4x4 &matrix);
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void bind();
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void unbind();
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void setOpacity(float opacity);
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float opacity() const;
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protected:
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void setIsValid(bool value) {
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mValid = value;
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}
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void reset();
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private:
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bool mValid;
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GLShader *shader;
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int mvpMatrixLocation;
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int textureMatrixLocation;
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int colorMatrixLocation;
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int opacityLocation;
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float m_opacity;
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};
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} // namespace KWin
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#endif
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