86 lines
2.6 KiB
C++
86 lines
2.6 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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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 "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 EglOnXBackend : public OpenGLBackend
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{
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public:
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EglOnXBackend();
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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 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 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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EGLDisplay dpy;
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EGLConfig config;
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EGLSurface surface;
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EGLContext ctx;
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int surfaceHasSubPost;
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int m_bufferAge;
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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 SceneOpenGL::TexturePrivate
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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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virtual bool loadTexture(xcb_pixmap_t pix, const QSize &size, xcb_visualid_t visual) override;
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virtual OpenGLBackend *backend();
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private:
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friend class EglOnXBackend;
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EglTexture(SceneOpenGL::Texture *texture, EglOnXBackend *backend);
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SceneOpenGL::Texture *q;
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EglOnXBackend *m_backend;
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EGLImageKHR m_image;
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};
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} // namespace
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#endif // KWIN_EGL_ON_X_BACKEND_H
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