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132 lines
3.8 KiB
132 lines
3.8 KiB
/******************************************************************** |
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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) 2012 Martin Gräßlin <mgraesslin@kde.org> |
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This program is free software; you can redistribute it and/or modify |
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it under the terms of the GNU General Public License as published by |
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the Free Software Foundation; either version 2 of the License, or |
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(at your option) any later version. |
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This program is distributed in the hope that it will be useful, |
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but WITHOUT ANY WARRANTY; without even the implied warranty of |
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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GNU General Public License for more details. |
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You should have received a copy of the GNU General Public License |
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along with this program. If not, see <http://www.gnu.org/licenses/>. |
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*********************************************************************/ |
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#ifndef KWIN_GLX_BACKEND_H |
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#define KWIN_GLX_BACKEND_H |
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#include "scene_opengl.h" |
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#include "x11eventfilter.h" |
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#include <xcb/glx.h> |
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#include <memory> |
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namespace KWin |
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{ |
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class FBConfigInfo |
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{ |
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public: |
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GLXFBConfig fbconfig; |
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int bind_texture_format; |
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int texture_targets; |
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int y_inverted; |
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int mipmap; |
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}; |
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// ------------------------------------------------------------------ |
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class SwapEventFilter : public X11EventFilter |
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{ |
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public: |
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SwapEventFilter(xcb_drawable_t drawable, xcb_glx_drawable_t glxDrawable); |
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bool event(xcb_generic_event_t *event) override; |
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private: |
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xcb_drawable_t m_drawable; |
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xcb_glx_drawable_t m_glxDrawable; |
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}; |
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/** |
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* @brief OpenGL Backend using GLX over an X overlay window. |
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**/ |
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class GlxBackend : public OpenGLBackend |
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{ |
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public: |
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GlxBackend(); |
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virtual ~GlxBackend(); |
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virtual void screenGeometryChanged(const QSize &size); |
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virtual SceneOpenGL::TexturePrivate *createBackendTexture(SceneOpenGL::Texture *texture); |
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virtual QRegion prepareRenderingFrame(); |
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virtual void endRenderingFrame(const QRegion &damage, const QRegion &damagedRegion); |
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virtual bool makeCurrent() override; |
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virtual void doneCurrent() override; |
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virtual OverlayWindow* overlayWindow() override; |
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virtual bool usesOverlayWindow() const override; |
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protected: |
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virtual void present(); |
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private: |
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void init(); |
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bool initBuffer(); |
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void waitSync(); |
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bool initRenderingContext(); |
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bool initFbConfig(); |
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void initVisualDepthHashTable(); |
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void setSwapInterval(int interval); |
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int visualDepth(xcb_visualid_t visual) const; |
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FBConfigInfo *infoForVisual(xcb_visualid_t visual); |
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/** |
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* @brief The OverlayWindow used by this Backend. |
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**/ |
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OverlayWindow *m_overlayWindow; |
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Window window; |
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GLXFBConfig fbconfig; |
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GLXWindow glxWindow; |
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GLXContext ctx; |
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QHash<xcb_visualid_t, FBConfigInfo *> m_fbconfigHash; |
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QHash<xcb_visualid_t, int> m_visualDepthHash; |
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std::unique_ptr<SwapEventFilter> m_swapEventFilter; |
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int m_bufferAge; |
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bool m_haveMESACopySubBuffer = false; |
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bool m_haveMESASwapControl = false; |
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bool m_haveEXTSwapControl = false; |
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bool m_haveSGISwapControl = false; |
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bool m_haveINTELSwapEvent = false; |
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bool haveSwapInterval = false; |
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bool haveWaitSync = false; |
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friend class GlxTexture; |
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}; |
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/** |
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* @brief Texture using an GLXPixmap. |
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**/ |
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class GlxTexture : public SceneOpenGL::TexturePrivate |
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{ |
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public: |
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virtual ~GlxTexture(); |
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virtual void onDamage(); |
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virtual bool loadTexture(WindowPixmap *pixmap) override; |
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virtual OpenGLBackend *backend(); |
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private: |
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friend class GlxBackend; |
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GlxTexture(SceneOpenGL::Texture *texture, GlxBackend *backend); |
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bool loadTexture(xcb_pixmap_t pix, const QSize &size, xcb_visualid_t visual); |
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SceneOpenGL::Texture *q; |
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GlxBackend *m_backend; |
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GLXPixmap m_glxpixmap; // the glx pixmap the texture is bound to |
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}; |
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} // namespace |
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#endif // KWIN_GLX_BACKEND_H
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