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92 lines
3.0 KiB
92 lines
3.0 KiB
/* |
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* Copyright © 2010 Fredrik Höglund <fredrik@kde.org> |
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* |
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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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* |
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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 GNU |
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* General Public License for more details. |
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* |
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* You should have received a copy of the GNU General Public License |
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* along with this program; see the file COPYING. if not, write to |
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* the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, |
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* Boston, MA 02110-1301, USA. |
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*/ |
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#ifndef BLUR_H |
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#define BLUR_H |
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#include <kwineffects.h> |
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#include <kwinglplatform.h> |
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#include <kwinglutils.h> |
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#include <QVector> |
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#include <QVector2D> |
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namespace KWin |
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{ |
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class BlurShader; |
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class BlurEffect : public KWin::Effect |
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{ |
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Q_OBJECT |
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public: |
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BlurEffect(); |
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~BlurEffect(); |
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static bool supported(); |
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static bool enabledByDefault(); |
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void reconfigure(ReconfigureFlags flags); |
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void prePaintScreen(ScreenPrePaintData &data, int time); |
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void prePaintWindow(EffectWindow* w, WindowPrePaintData& data, int time); |
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void drawWindow(EffectWindow *w, int mask, QRegion region, WindowPaintData &data); |
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void paintEffectFrame(EffectFrame *frame, QRegion region, double opacity, double frameOpacity); |
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public Q_SLOTS: |
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void slotWindowAdded(KWin::EffectWindow *w); |
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void slotWindowDeleted(KWin::EffectWindow *w); |
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void slotPropertyNotify(KWin::EffectWindow *w, long atom); |
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void slotScreenGeometryChanged(); |
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private: |
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QRect expand(const QRect &rect) const; |
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QRegion expand(const QRegion ®ion) const; |
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QRegion blurRegion(const EffectWindow *w) const; |
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bool shouldBlur(const EffectWindow *w, int mask, const WindowPaintData &data) const; |
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void updateBlurRegion(EffectWindow *w) const; |
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void drawRegion(const QRegion ®ion); |
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void doBlur(const QRegion &shape, const QRect &screen, const float opacity); |
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void doCachedBlur(EffectWindow *w, const QRegion& region, const float opacity); |
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private: |
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BlurShader *shader; |
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QVector<QVector2D> vertices; |
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GLRenderTarget *target; |
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GLTexture tex; |
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long net_wm_blur_region; |
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QRegion m_damagedArea; // keeps track of the area which has been damaged (from bottom to top) |
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QRegion m_paintedArea; // actually painted area which is greater than m_damagedArea |
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QRegion m_currentBlur; // keeps track of the currently blured area of non-caching windows(from bottom to top) |
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bool m_shouldCache; |
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struct BlurWindowInfo { |
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GLTexture blurredBackground; // keeps the horizontally blurred background |
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QRegion damagedRegion; |
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QPoint windowPos; |
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bool dropCache; |
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}; |
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QHash< const EffectWindow*, BlurWindowInfo > windows; |
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typedef QHash<const EffectWindow*, BlurWindowInfo>::iterator CacheEntry; |
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}; |
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} // namespace KWin |
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#endif |
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