1fb9f6f13a
The main advantage of SPDX license identifiers over the traditional license headers is that it's more difficult to overlook inappropriate licenses for kwin, for example GPL 3. We also don't have to copy a lot of boilerplate text. In order to create this change, I ran licensedigger -r -c from the toplevel source directory.
97 lines
2.9 KiB
C++
97 lines
2.9 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_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 "swap_profiler.h"
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#include <xcb/xcb.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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~EglOnXBackend() 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 prepareRenderingFrame() override;
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void endRenderingFrame(const QRegion &damage, const QRegion &damagedRegion) 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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bool isX11TextureFromPixmapSupported() const {
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return m_x11TextureFromPixmapSupported;
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}
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protected:
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void present() override;
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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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SwapProfiler m_swapProfiler;
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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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~EglTexture() override;
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void onDamage() override;
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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(SceneOpenGLTexture *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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