kwin/glxbackend.h

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/********************************************************************
KWin - the KDE window manager
This file is part of the KDE project.
Copyright (C) 2012 Martin Gräßlin <mgraesslin@kde.org>
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*********************************************************************/
#ifndef KWIN_GLX_BACKEND_H
#define KWIN_GLX_BACKEND_H
#include "scene_opengl.h"
namespace KWin
{
class FBConfigInfo
{
public:
GLXFBConfig fbconfig;
int bind_texture_format;
int texture_targets;
int y_inverted;
int mipmap;
};
/**
* @brief OpenGL Backend using GLX over an X overlay window.
**/
class GlxBackend : public OpenGLBackend
{
public:
GlxBackend();
virtual ~GlxBackend();
virtual void screenGeometryChanged(const QSize &size);
virtual SceneOpenGL::TexturePrivate *createBackendTexture(SceneOpenGL::Texture *texture);
virtual void prepareRenderingFrame();
virtual void endRenderingFrame(const QRegion &damage);
protected:
virtual void present();
private:
void init();
bool initBuffer();
bool initDrawableConfigs();
void waitSync();
bool initRenderingContext();
bool initFbConfig();
void setSwapInterval(int interval);
Window window;
FBConfigInfo fbcdrawableinfo[ 32 + 1 ];
GLXFBConfig fbconfig;
GLXWindow glxWindow;
GLXContext ctx;
bool haveSwapInterval;
friend class GlxTexture;
};
/**
* @brief Texture using an GLXPixmap.
**/
class GlxTexture : public SceneOpenGL::TexturePrivate
{
public:
virtual ~GlxTexture();
virtual void onDamage();
virtual void findTarget();
virtual bool loadTexture(const Pixmap& pix, const QSize& size, int depth);
virtual OpenGLBackend *backend();
private:
friend class GlxBackend;
GlxTexture(SceneOpenGL::Texture *texture, GlxBackend *backend);
SceneOpenGL::Texture *q;
GlxBackend *m_backend;
GLXPixmap m_glxpixmap; // the glx pixmap the texture is bound to
};
} // namespace
#endif // KWIN_GLX_BACKEND_H