01ddbe7d75
Summary: Several of the subclasses are already derived from QObject. The main reason is that the class should be moved out of KWin core in order to move the OpenGL scene into a plugin. As Compositor calls into the AbstractEglBackend to unbind the wayland display this creates a problem which is easily solved by turning the AbstractEglBackend into a QObject and connect to the signal emitted by the Compositor. Test Plan: Compiles Reviewers: #kwin, #plasma Subscribers: plasma-devel, kwin Tags: #kwin Differential Revision: https://phabricator.kde.org/D7669
95 lines
2.9 KiB
C++
95 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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Copyright (C) 2015 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_GBM_BACKEND_H
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#define KWIN_EGL_GBM_BACKEND_H
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#include "abstract_egl_backend.h"
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#include "scene_opengl.h"
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struct gbm_surface;
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namespace KWin
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{
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class DrmBackend;
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class DrmBuffer;
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class DrmOutput;
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/**
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* @brief OpenGL Backend using Egl on a GBM surface.
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**/
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class EglGbmBackend : public AbstractEglBackend
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{
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Q_OBJECT
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public:
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EglGbmBackend(DrmBackend *b);
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virtual ~EglGbmBackend();
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void screenGeometryChanged(const QSize &size) override;
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SceneOpenGL::TexturePrivate *createBackendTexture(SceneOpenGL::Texture *texture) override;
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QRegion prepareRenderingFrame() override;
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void endRenderingFrame(const QRegion &renderedRegion, const QRegion &damagedRegion) override;
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void endRenderingFrameForScreen(int screenId, const QRegion &damage, const QRegion &damagedRegion) override;
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bool usesOverlayWindow() const override;
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bool perScreenRendering() const override;
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QRegion prepareRenderingForScreen(int screenId) override;
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void init() override;
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protected:
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void present() override;
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void cleanupSurfaces() override;
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private:
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bool initializeEgl();
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bool initBufferConfigs();
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bool initRenderingContext();
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struct Output {
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DrmOutput *output = nullptr;
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DrmBuffer *buffer = nullptr;
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gbm_surface *gbmSurface = nullptr;
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EGLSurface eglSurface = EGL_NO_SURFACE;
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int bufferAge = 0;
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/**
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* @brief The damage history for the past 10 frames.
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*/
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QList<QRegion> damageHistory;
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};
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bool makeContextCurrent(const Output &output);
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void presentOnOutput(Output &output);
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void cleanupOutput(const Output &output);
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void createOutput(DrmOutput *output);
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DrmBackend *m_backend;
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QVector<Output> m_outputs;
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friend class EglGbmTexture;
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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 EglGbmTexture : public AbstractEglTexture
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{
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public:
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virtual ~EglGbmTexture();
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private:
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friend class EglGbmBackend;
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EglGbmTexture(SceneOpenGL::Texture *texture, EglGbmBackend *backend);
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};
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} // namespace
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#endif
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