129 lines
3.2 KiB
C++
129 lines
3.2 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) 2006 Lubos Lunak <l.lunak@kde.org>
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You can Freely distribute this program under the GNU General Public
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License. See the file "COPYING" for the exact licensing terms.
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******************************************************************/
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#ifndef KWIN_SCENE_XRENDER_H
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#define KWIN_SCENE_XRENDER_H
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#include "config.h"
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#ifdef HAVE_XRENDER
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#include <X11/extensions/Xrender.h>
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#include "scene.h"
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#include "effects.h"
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#include "toplevel.h"
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namespace KWinInternal
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{
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class Matrix;
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class SceneXrender
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: public Scene
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{
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public:
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SceneXrender( Workspace* ws );
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virtual ~SceneXrender();
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virtual void paint( QRegion damage, ToplevelList windows );
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virtual void windowGeometryShapeChanged( Toplevel* );
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virtual void windowOpacityChanged( Toplevel* );
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virtual void windowAdded( Toplevel* );
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virtual void windowDeleted( Toplevel* );
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private:
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void createBuffer();
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void paintGenericScreen( ToplevelList windows );
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void paintSimpleScreen( QRegion damage, ToplevelList windows );
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void paintBackground( QRegion region );
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static QRegion infiniteRegion();
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static XserverRegion toXserverRegion( QRegion region );
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enum
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{
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PAINT_OPAQUE = 1 << 0,
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PAINT_TRANSLUCENT = 1 << 1
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};
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XRenderPictFormat* format;
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Picture front;
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static Picture buffer;
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class Window;
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QMap< Toplevel*, Window > windows;
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struct Phase2Data
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{
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Phase2Data( Window* w, QRegion r ) : window( w ), region( r ) {}
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Window* window;
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QRegion region;
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};
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};
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class SceneXrender::Window
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{
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public:
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Window( Toplevel* c );
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void free(); // is often copied by value, use manually instead of dtor
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int x() const;
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int y() const;
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int width() const;
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int height() const;
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void paint( QRegion region, int mask );
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bool isOpaque() const;
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void geometryShapeChanged();
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void opacityChanged();
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bool isVisible() const;
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QRegion shape() const;
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void discardPicture();
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void discardShape();
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void discardAlpha();
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Window() {} // QMap sucks even in Qt4
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private:
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Picture picture();
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Picture alphaMask();
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Toplevel* toplevel;
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Picture _picture;
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XRenderPictFormat* format;
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Picture alpha;
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double alpha_cached_opacity;
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mutable QRegion shape_region;
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mutable bool shape_valid;
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};
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inline
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QRegion SceneXrender::infiniteRegion()
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{ // INT_MIN / 2 because it's width/height (INT_MIN+INT_MAX==-1)
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return QRegion( INT_MIN / 2, INT_MIN / 2, INT_MAX, INT_MAX );
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}
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inline
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int SceneXrender::Window::x() const
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{
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return toplevel->x();
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}
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inline
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int SceneXrender::Window::y() const
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{
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return toplevel->y();
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}
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inline
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int SceneXrender::Window::width() const
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{
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return toplevel->width();
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}
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inline
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int SceneXrender::Window::height() const
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{
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return toplevel->height();
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}
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} // namespace
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#endif
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#endif
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