f26eeb9706
Currently, the OpenGLBackend and the QPainterBackend have hooks to indicate the start and the end of compositing cycle, but in both cases, the hooks have different names. This change fixes that inconsistency.
139 lines
3.6 KiB
C++
139 lines
3.6 KiB
C++
/*
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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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SPDX-FileCopyrightText: 2012 Martin Gräßlin <mgraesslin@kde.org>
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SPDX-License-Identifier: GPL-2.0-or-later
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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 "backend.h"
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#include "texture.h"
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#include "swap_profiler.h"
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#include "x11eventfilter.h"
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#include <xcb/glx.h>
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#include <epoxy/glx.h>
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#include <fixx11h.h>
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#include <memory>
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namespace KWin
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{
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// GLX_MESA_swap_interval
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using glXSwapIntervalMESA_func = int (*)(unsigned int interval);
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extern glXSwapIntervalMESA_func glXSwapIntervalMESA;
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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(Display *display);
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~GlxBackend() override;
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void screenGeometryChanged(const QSize &size) override;
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SceneOpenGLTexturePrivate *createBackendTexture(SceneOpenGLTexture *texture) override;
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QRegion beginFrame(int screenId) override;
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void endFrame(int screenId, const QRegion &damage, const QRegion &damagedRegion) override;
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bool makeCurrent() override;
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void doneCurrent() override;
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OverlayWindow* overlayWindow() const override;
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bool usesOverlayWindow() const override;
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void init() override;
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protected:
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void present() override;
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private:
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bool initBuffer();
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bool checkVersion();
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void initExtensions();
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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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Display *display() const {
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return m_x11Display;
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}
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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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Display *m_x11Display;
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SwapProfiler m_swapProfiler;
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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 SceneOpenGLTexturePrivate
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{
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public:
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~GlxTexture() override;
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void onDamage() override;
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bool loadTexture(WindowPixmap *pixmap) override;
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OpenGLBackend *backend() override;
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private:
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friend class GlxBackend;
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GlxTexture(SceneOpenGLTexture *texture, GlxBackend *backend);
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bool loadTexture(xcb_pixmap_t pix, const QSize &size, xcb_visualid_t visual);
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Display *display() const {
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return m_backend->m_x11Display;
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}
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SceneOpenGLTexture *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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