kwin/scene_opengl.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_OPENGL_H
#define KWIN_SCENE_OPENGL_H
#include "scene.h"
#include <GL/gl.h>
#include <GL/glx.h>
#include <X11/extensions/XShm.h>
namespace KWinInternal
{
class SceneOpenGL
: public Scene
{
public:
SceneOpenGL( Workspace* ws );
virtual ~SceneOpenGL();
virtual void paint( QRegion damage, ToplevelList windows );
virtual void postPaint();
virtual void windowGeometryShapeChanged( Toplevel* );
virtual void windowOpacityChanged( Toplevel* );
virtual void windowAdded( Toplevel* );
virtual void windowDeleted( Toplevel* );
protected:
virtual void paintGenericScreen( int mask, ScreenPaintData data );
virtual void paintSimpleScreen( int mask, QRegion region );
virtual void paintBackground( QRegion region );
private:
bool initShm();
void cleanupShm();
void initBuffer();
void initRenderingContext();
bool findConfig( const int* attrs, GLXFBConfig* config, VisualID visual = None );
typedef GLuint Texture;
GC gcroot;
Drawable buffer;
GLXFBConfig fbcbuffer;
static bool db;
static GLXFBConfig fbcdrawable;
static GLXDrawable glxbuffer;
static GLXContext ctxbuffer;
static GLXContext ctxdrawable;
static GLXDrawable last_pixmap; // for a workaround in bindTexture()
static bool tfp_mode;
static bool shm_mode;
static bool strict_binding;
static bool copy_buffer_hack;
static bool supports_saturation;
class Window;
QMap< Toplevel*, Window > windows;
static XShmSegmentInfo shm;
};
class SceneOpenGL::Window
: public Scene::Window
{
public:
Window( Toplevel* c );
virtual void free();
virtual void performPaint( int mask, QRegion region, WindowPaintData data );
void bindTexture();
void enableTexture();
void disableTexture();
void discardTexture();
Window() {} // QMap sucks even in Qt4
private:
Texture texture;
bool texture_y_inverted; // texture has y inverted
Pixmap bound_pixmap; // the pixmap the texture is bound to, only for tfp_mode
GLXPixmap bound_glxpixmap; // the glx pixmap the texture is bound to, only for tfp_mode
};
} // namespace
#endif