4d46edd7ba
Summary: Implements a KWayland protocol to pass GBM fd from KWin to KRfb and addictions to relevant projects from both sides. Note that this patch does not affect default behaviour of mentioned projects. It can be used only with KWIN_REMOTE=1 in env from KWin side and with preferredFrameBufferPlugin=gbm in krfbrc from KRfb side. In all other aspects app behaviour remains unchanged. Test Plan: Launched KWin in Wayland mode, launched KRfb in it, launched KRDC on a laptop, connected in read-only mode, observed a correctly retrieved desktop with Krfb window Reviewers: graesslin, davidedmundson, romangg, #kwin Reviewed By: davidedmundson, romangg, #kwin Subscribers: kossebau, jgrulich, romangg, ngraham, alexeymin, aacid, kwin, #kwin, davidedmundson, plasma-devel Tags: #plasma_on_wayland, #kwin Maniphest Tasks: T5653, T7785 Differential Revision: https://phabricator.kde.org/D1230
101 lines
3.1 KiB
C++
101 lines
3.1 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 "remoteaccess_manager.h"
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#include <memory>
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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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class GbmSurface;
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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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SceneOpenGLTexturePrivate *createBackendTexture(SceneOpenGLTexture *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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void initRemotePresent();
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struct Output {
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DrmOutput *output = nullptr;
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DrmBuffer *buffer = nullptr;
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std::shared_ptr<GbmSurface> gbmSurface;
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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 resetOutput(Output &output, DrmOutput *drmOutput);
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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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QScopedPointer<RemoteAccessManager> m_remoteaccessManager;
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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(SceneOpenGLTexture *texture, EglGbmBackend *backend);
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};
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} // namespace
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#endif
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