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106 lines
3.4 KiB
C++
106 lines
3.4 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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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_EGL_ON_X_BACKEND_H
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#define KWIN_EGL_ON_X_BACKEND_H
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#include "abstract_egl_backend.h"
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#include "scene_opengl.h"
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namespace KWin
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{
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/**
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* @brief OpenGL Backend using Egl windowing system over an X overlay window.
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**/
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class KWIN_EXPORT EglOnXBackend : public AbstractEglBackend
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{
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public:
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EglOnXBackend(Display *display);
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explicit EglOnXBackend(xcb_connection_t *connection, Display *display, xcb_window_t rootWindow, int screenNumber, xcb_window_t renderingWindow);
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virtual ~EglOnXBackend();
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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 OverlayWindow* overlayWindow() override;
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virtual bool usesOverlayWindow() const override;
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void init() override;
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bool isX11TextureFromPixmapSupported() const {
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return m_x11TextureFromPixmapSupported;
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}
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protected:
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virtual void present();
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void presentSurface(EGLSurface surface, const QRegion &damage, const QRect &screenGeometry);
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virtual bool createSurfaces();
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EGLSurface createSurface(xcb_window_t window);
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void setHavePlatformBase(bool have) {
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m_havePlatformBase = have;
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}
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bool havePlatformBase() const {
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return m_havePlatformBase;
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}
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bool makeContextCurrent(const EGLSurface &surface);
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void setX11TextureFromPixmapSupported(bool set) {
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m_x11TextureFromPixmapSupported = set;
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}
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private:
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bool initBufferConfigs();
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bool initRenderingContext();
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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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int surfaceHasSubPost;
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int m_bufferAge;
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bool m_usesOverlayWindow;
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xcb_connection_t *m_connection;
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Display *m_x11Display;
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xcb_window_t m_rootWindow;
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int m_x11ScreenNumber;
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xcb_window_t m_renderingWindow = XCB_WINDOW_NONE;
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bool m_havePlatformBase = false;
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bool m_x11TextureFromPixmapSupported = true;
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friend class EglTexture;
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};
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/**
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* @brief Texture using an EGLImageKHR.
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**/
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class EglTexture : public AbstractEglTexture
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{
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public:
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virtual ~EglTexture();
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virtual void onDamage();
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bool loadTexture(WindowPixmap *pixmap) override;
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private:
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bool loadTexture(xcb_pixmap_t pix, const QSize &size);
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friend class EglOnXBackend;
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EglTexture(SceneOpenGL::Texture *texture, EglOnXBackend *backend);
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EglOnXBackend *m_backend;
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};
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} // namespace
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#endif // KWIN_EGL_ON_X_BACKEND_H
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