e12400a675
This backend interacts with libhybris to create a hwcomposer which is used for creating the egl context and surface. The initial version of this backend is based on test_hwcomposer.cpp provided by libhybris. Please note that using the hwcomposer backend requires a newer libepoxy, the latest stable release is not able to bring up OpenGLES, so one needs a master build of libepoxy. Notes on licensing: libhybris is Apache 2.0 licensed, which is not compatile with GPLv2. But it is compatible with GPLv3. Thus the source files in the hwcomposer backend are licensed GPLv3+ and not GPLv2+ as the rest of KWin. If one uses KWin without the hwcomposer backend (which is obviously the default) the licence doesn't change. But if the hwcomposer backend is used the overall license of KWin changes to GPLv3+.
66 lines
2 KiB
C++
66 lines
2 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 3 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_HWCOMPOSER_BACKEND_H
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#define KWIN_EGL_HWCOMPOSER_BACKEND_H
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#include "abstract_egl_backend.h"
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namespace KWin
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{
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class HwcomposerBackend;
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class HwcomposerWindow;
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class EglHwcomposerBackend : public AbstractEglBackend
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{
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public:
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EglHwcomposerBackend(HwcomposerBackend *backend);
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virtual ~EglHwcomposerBackend();
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bool usesOverlayWindow() const override;
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SceneOpenGL::TexturePrivate *createBackendTexture(SceneOpenGL::Texture *texture) override;
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void screenGeometryChanged(const QSize &size) 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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protected:
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void present() override;
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private:
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void init();
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bool initializeEgl();
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bool initRenderingContext();
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bool initBufferConfigs();
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bool makeContextCurrent();
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HwcomposerBackend *m_backend;
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HwcomposerWindow *m_nativeSurface = nullptr;
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};
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class EglHwcomposerTexture : public AbstractEglTexture
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{
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public:
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virtual ~EglHwcomposerTexture();
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private:
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friend class EglHwcomposerBackend;
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EglHwcomposerTexture(SceneOpenGL::Texture *texture, EglHwcomposerBackend *backend);
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};
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}
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#endif
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