8ecaefebcc
Using shader reduces CPU load from approximately 50 % to less than 20 % on my system. svn path=/trunk/KDE/kdebase/workspace/; revision=883348
101 lines
2.8 KiB
C++
101 lines
2.8 KiB
C++
/********************************************************************
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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) 2007 Martin Gräßlin <ubuntu@martin-graesslin.com>
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Copyright (C) 2008 Torgny Johansson <torgny.johansson@gmail.com>
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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_SNOW_H
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#define KWIN_SNOW_H
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#include <kwineffects.h>
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#include <kwinglutils.h>
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#include <qobject.h>
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#include <QList>
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#include <QTime>
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namespace KWin
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{
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class SnowFlake
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{
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public:
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SnowFlake(int x, int y, int width, int height, int maxVSpeed, int maxHSpeed);
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virtual ~SnowFlake();
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int getHSpeed();
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int getVSpeed();
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float getRotationAngle();
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void updateSpeedAndRotation();
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int getHeight();
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int getWidth();
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int getX();
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int getY();
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QRect getRect();
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void setHeight(int height);
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void setWidth(int width);
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void setX(int x);
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void setY(int y);
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private:
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QRect rect;
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int vSpeed;
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int hSpeed;
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float rotationAngle;
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float rotationSpeed;
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};
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class SnowEffect
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: public QObject, public Effect
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{
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Q_OBJECT
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public:
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SnowEffect();
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virtual ~SnowEffect();
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virtual void reconfigure( ReconfigureFlags );
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virtual void prePaintScreen( ScreenPrePaintData& data, int time );
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virtual void paintScreen( int mask, QRegion region, ScreenPaintData& data );
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virtual void postPaintScreen();
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virtual void paintWindow( EffectWindow* w, int mask, QRegion region, WindowPaintData& data );
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private slots:
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void toggle();
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private:
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void loadTexture();
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void snowing( QRegion& region );
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bool loadShader();
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GLTexture* texture;
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QList<SnowFlake>* flakes;
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QTime lastFlakeTime;
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long nextFlakeMillis;
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int mNumberFlakes;
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int mMinFlakeSize;
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int mMaxFlakeSize;
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int mMaxVSpeed;
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int mMaxHSpeed;
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bool active;
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GLuint list;
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bool snowBehindWindows;
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GLShader* mShader;
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bool mInited;
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bool mUseShader;
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};
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} // namespace
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#endif
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