f1be2aa724
Since it's unlikely XRender code will use other transformations then the ones provided this should be ok. Makes painting with obscured windows much faster (i.e. it's just slow, not bloody slow). svn path=/branches/work/kwin_composite/; revision=610613
97 lines
2.5 KiB
C++
97 lines
2.5 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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#include "scene.h"
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#ifdef HAVE_XRENDER
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#include <X11/extensions/Xrender.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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Picture bufferPicture();
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protected:
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virtual void paintBackground( QRegion region );
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virtual void paintGenericScreen( int mask, ScreenPaintData data );
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private:
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void paintTransformedScreen( int mask );
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void createBuffer();
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static XserverRegion toXserverRegion( QRegion region );
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XRenderPictFormat* format;
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Picture front;
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static Picture buffer;
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static ScreenPaintData screen_paint;
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class Window;
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QMap< Toplevel*, Window > windows;
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};
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class SceneXrender::Window
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: public Scene::Window
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{
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public:
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Window( Toplevel* c );
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virtual void free();
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virtual void performPaint( int mask, QRegion region, WindowPaintData data );
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void discardPicture();
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void discardAlpha();
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QRegion transformedShape() const;
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void setTransformedShape( const QRegion& shape );
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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( double opacity );
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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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QRegion transformed_shape;
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};
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inline
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Picture SceneXrender::bufferPicture()
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{
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return buffer;
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}
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inline
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QRegion SceneXrender::Window::transformedShape() const
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{
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return transformed_shape;
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}
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inline
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void SceneXrender::Window::setTransformedShape( const QRegion& shape )
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{
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transformed_shape = shape;
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}
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} // namespace
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#endif
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#endif
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