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77 lines
2.1 KiB
77 lines
2.1 KiB
/******************************************************************** |
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KWin - the KDE window manager |
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This file is part of the KDE project. |
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Copyright (C) 2010 by Fredrik Höglund <fredrik@kde.org> |
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Copyright (C) 2010 Martin Gräßlin <mgraesslin@kde.org> |
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This program is free software; you can redistribute it and/or modify |
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it under the terms of the GNU General Public License as published by |
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the Free Software Foundation; either version 2 of the License, or |
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(at your option) any later version. |
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This program is distributed in the hope that it will be useful, |
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but WITHOUT ANY WARRANTY; without even the implied warranty of |
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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GNU General Public License for more details. |
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You should have received a copy of the GNU General Public License |
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along with this program. If not, see <http://www.gnu.org/licenses/>. |
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*********************************************************************/ |
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#ifndef KWIN_LANCZOSFILTER_P_H |
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#define KWIN_LANCZOSFILTER_P_H |
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#include <QObject> |
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#include <QBasicTimer> |
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#include <QVector> |
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#include <QVector2D> |
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#include <QVector4D> |
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#include <kwinconfig.h> |
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namespace KWin |
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{ |
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class EffectWindow; |
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class EffectWindowImpl; |
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class WindowPaintData; |
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class GLTexture; |
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class GLRenderTarget; |
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class GLShader; |
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class LanczosFilter |
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: public QObject |
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{ |
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Q_OBJECT |
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public: |
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explicit LanczosFilter(QObject* parent = 0); |
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~LanczosFilter(); |
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void performPaint(EffectWindowImpl* w, int mask, QRegion region, WindowPaintData& data); |
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protected: |
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virtual void timerEvent(QTimerEvent*); |
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private: |
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void init(); |
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void updateOffscreenSurfaces(); |
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void setUniforms(); |
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void discardCacheTexture(EffectWindow *w); |
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void createKernel(float delta, int *kernelSize); |
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void createOffsets(int count, float width, Qt::Orientation direction); |
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GLTexture *m_offscreenTex; |
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GLRenderTarget *m_offscreenTarget; |
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QBasicTimer m_timer; |
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bool m_inited; |
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QScopedPointer<GLShader> m_shader; |
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int m_uTexUnit; |
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int m_uOffsets; |
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int m_uKernel; |
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QVector2D m_offsets[16]; |
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QVector4D m_kernel[16]; |
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}; |
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} // namespace |
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#endif // KWIN_LANCZOSFILTER_P_H
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