kwin/scene_xrender.h

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/*****************************************************************
KWin - the KDE window manager
This file is part of the KDE project.
Copyright (C) 2006 Lubos Lunak <l.lunak@kde.org>
You can Freely distribute this program under the GNU General Public
License. See the file "COPYING" for the exact licensing terms.
******************************************************************/
#ifndef KWIN_SCENE_XRENDER_H
#define KWIN_SCENE_XRENDER_H
#include <config.h>
#include "scene.h"
#if defined(HAVE_XRENDER) && defined(HAVE_XFIXES)
#include <X11/extensions/Xrender.h>
namespace KWin
{
class Matrix;
class SceneXrender
: public Scene
{
public:
SceneXrender( Workspace* ws );
virtual ~SceneXrender();
virtual CompositingType compositingType() const { return XRenderCompositing; }
virtual void paint( QRegion damage, ToplevelList windows );
virtual void windowGeometryShapeChanged( Toplevel* );
virtual void windowOpacityChanged( Toplevel* );
virtual void windowAdded( Toplevel* );
virtual void windowClosed( Toplevel*, Deleted* );
virtual void windowDeleted( Deleted* );
Picture bufferPicture();
protected:
virtual void paintBackground( QRegion region );
virtual void paintGenericScreen( int mask, ScreenPaintData data );
private:
void paintTransformedScreen( int mask );
void createBuffer();
static XserverRegion toXserverRegion( QRegion region );
XRenderPictFormat* format;
Picture front;
static Picture buffer;
static ScreenPaintData screen_paint;
class Window;
QHash< Toplevel*, Window* > windows;
};
class SceneXrender::Window
: public Scene::Window
{
public:
Window( Toplevel* c );
virtual ~Window();
virtual void performPaint( int mask, QRegion region, WindowPaintData data );
void discardPicture();
void discardAlpha();
QRegion transformedShape() const;
void setTransformedShape( const QRegion& shape );
private:
Picture picture();
Picture alphaMask( double opacity );
Picture _picture;
XRenderPictFormat* format;
Picture alpha;
double alpha_cached_opacity;
QRegion transformed_shape;
};
inline
Picture SceneXrender::bufferPicture()
{
return buffer;
}
inline
QRegion SceneXrender::Window::transformedShape() const
{
return transformed_shape;
}
inline
void SceneXrender::Window::setTransformedShape( const QRegion& shape )
{
transformed_shape = shape;
}
} // namespace
#endif
#endif