684b4b635e
Summary:
So far we were following a bit unique and rare doxygen comment style:
/**
* Contents of the comment.
**/
Doxygen comments with this style look balanced and neat, but many people
that contribute to KWin don't follow this style. Instead, they prefer
more traditional doxygen comment style, i.e.
/**
* Contents of the comment.
*/
Reviewing such changes has been a bit frustrating for me (so selfish!)
and for other contributors.
This change switches doxygen comment style in KWin to a more traditional
style. The main reason for doing this is to make code review process easier
for new contributors as well us.
Reviewers: #kwin, davidedmundson
Reviewed By: #kwin, davidedmundson
Subscribers: kwin
Tags: #kwin
Differential Revision: https://phabricator.kde.org/D22812
116 lines
3.8 KiB
C++
116 lines
3.8 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) 2019 NVIDIA Inc.
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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_STREAM_BACKEND_H
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#define KWIN_EGL_STREAM_BACKEND_H
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#include "abstract_egl_backend.h"
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#include <KWayland/Server/surface_interface.h>
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#include <KWayland/Server/eglstream_controller_interface.h>
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#include <wayland-server-core.h>
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namespace KWin
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{
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class DrmBackend;
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class DrmOutput;
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class DrmBuffer;
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class ShellClient;
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/**
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* @brief OpenGL Backend using Egl with an EGLDevice.
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*/
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class EglStreamBackend : public AbstractEglBackend
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{
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Q_OBJECT
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public:
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EglStreamBackend(DrmBackend *b);
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~EglStreamBackend() 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 &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 StreamTexture
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{
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EGLStreamKHR stream;
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GLuint texture;
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};
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StreamTexture *lookupStreamTexture(KWayland::Server::SurfaceInterface *surface);
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void attachStreamConsumer(KWayland::Server::SurfaceInterface *surface,
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void *eglStream,
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wl_array *attribs);
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struct Output
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{
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DrmOutput *output = nullptr;
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DrmBuffer *buffer = nullptr;
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EGLSurface eglSurface = EGL_NO_SURFACE;
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EGLStreamKHR eglStream = EGL_NO_STREAM_KHR;
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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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KWayland::Server::EglStreamControllerInterface *m_eglStreamControllerInterface;
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QHash<KWayland::Server::SurfaceInterface *, StreamTexture> m_streamTextures;
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friend class EglStreamTexture;
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};
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/**
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* @brief External texture bound to an EGLStreamKHR.
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*/
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class EglStreamTexture : public AbstractEglTexture
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{
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public:
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~EglStreamTexture() override;
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bool loadTexture(WindowPixmap *pixmap) override;
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void updateTexture(WindowPixmap *pixmap) override;
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private:
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EglStreamTexture(SceneOpenGLTexture *texture, EglStreamBackend *backend);
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bool acquireStreamFrame(EGLStreamKHR stream);
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void createFbo();
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void copyExternalTexture(GLuint tex);
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bool attachBuffer(KWayland::Server::BufferInterface *buffer);
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EglStreamBackend *m_backend;
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GLuint m_fbo, m_rbo;
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GLenum m_format;
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friend class EglStreamBackend;
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};
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} // namespace
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#endif
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