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 "kwinglutils.h"
#ifdef HAVE_OPENGL
#ifdef HAVE_XSHM
#include <X11/extensions/XShm.h>
#endif
namespace KWin
{
class SceneOpenGL
: public Scene
{
public:
class Texture;
class Window;
SceneOpenGL( Workspace* ws );
virtual ~SceneOpenGL();
virtual bool initFailed() const;
virtual CompositingType compositingType() const { return OpenGLCompositing; }
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* );
protected:
virtual void paintGenericScreen( int mask, ScreenPaintData data );
virtual void paintBackground( QRegion region );
private:
bool selectMode();
bool initTfp();
bool initShm();
void cleanupShm();
bool initBuffer();
bool initRenderingContext();
bool initBufferConfigs();
bool initDrawableConfigs();
void waitSync();
void flushBuffer( int mask, QRegion damage );
GC gcroot;
class FBConfigInfo
{
public:
GLXFBConfig fbconfig;
int bind_texture_format;
int y_inverted;
int mipmap;
};
Drawable buffer;
GLXFBConfig fbcbuffer;
static bool db;
static GLXFBConfig fbcbuffer_db;
static GLXFBConfig fbcbuffer_nondb;
static FBConfigInfo fbcdrawableinfo[ 32 + 1 ];
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;
QHash< Toplevel*, Window* > windows;
#ifdef HAVE_XSHM
static XShmSegmentInfo shm;
#endif
bool init_ok;
};
class SceneOpenGL::Texture
: public GLTexture
{
public:
Texture();
Texture( const Pixmap& pix, const QSize& size, int depth );
virtual ~Texture();
using GLTexture::load;
virtual bool load( const Pixmap& pix, const QSize& size, int depth,
QRegion region );
virtual bool load( const Pixmap& pix, const QSize& size, int depth );
virtual bool load( const QImage& image, GLenum target = GL_TEXTURE_2D );
virtual bool load( const QPixmap& pixmap, GLenum target = GL_TEXTURE_2D );
virtual void discard();
virtual void release(); // undo the tfp_mode binding
virtual void bind();
virtual void unbind();
protected:
void findTarget();
QRegion optimizeBindDamage( const QRegion& reg, int limit );
void createTexture();
private:
void init();
GLXPixmap bound_glxpixmap; // the glx pixmap the texture is bound to, only for tfp_mode
};
class SceneOpenGL::Window
: public Scene::Window
{
public:
Window( Toplevel* c );
virtual ~Window();
virtual void performPaint( int mask, QRegion region, WindowPaintData data );
virtual void pixmapDiscarded();
bool bindTexture();
void discardTexture();
protected:
void renderQuads( int mask, const QRegion& region, const WindowQuadList& quads );
void prepareStates( double opacity, double brightness, double saturation, GLShader* shader );
void prepareRenderStates( double opacity, double brightness, double saturation );
void prepareShaderRenderStates( double opacity, double brightness, double saturation, GLShader* shader );
void restoreStates( double opacity, double brightness, double saturation, GLShader* shader );
void restoreRenderStates( double opacity, double brightness, double saturation );
void restoreShaderRenderStates( double opacity, double brightness, double saturation, GLShader* shader );
private:
Texture texture;
};
} // namespace
#endif
#endif