8af2fa73dc
Summary: Currently code base of kwin can be viewed as two pieces. One is very ancient, and the other one is more modern, which uses new C++ features. The main problem with the ancient code is that it was written before C++11 era. So, no override or final keywords, lambdas, etc. Quite recently, KDE compiler settings were changed to show a warning if a virtual method has missing override keyword. As you might have already guessed, this fired back at us because of that ancient code. We had about 500 new compiler warnings. A "solution" was proposed to that problem - disable -Wno-suggest-override and the other similar warning for clang. It's hard to call a solution because those warnings are disabled not only for the old code, but also for new. This is not what we want! The main argument for not actually fixing the problem was that git history will be screwed as well because of human factor. While good git history is a very important thing, we should not go crazy about it and block every change that somehow alters git history. git blame allows to specify starting revision for a reason. The other argument (human factor) can be easily solved by using tools such as clang-tidy. clang-tidy is a clang-based linter for C++. It can be used for various things, e.g. fixing coding style(e.g. add missing braces to if statements, readability-braces-around-statements check), or in our case add missing override keywords. Test Plan: Compiles. Reviewers: #kwin, davidedmundson Reviewed By: #kwin, davidedmundson Subscribers: davidedmundson, apol, romangg, kwin Tags: #kwin Differential Revision: https://phabricator.kde.org/D22371
122 lines
3.3 KiB
C++
122 lines
3.3 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_ABSTRACT_EGL_BACKEND_H
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#define KWIN_ABSTRACT_EGL_BACKEND_H
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#include "backend.h"
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#include "texture.h"
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#include <QObject>
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#include <epoxy/egl.h>
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#include <fixx11h.h>
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class QOpenGLFramebufferObject;
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namespace KWayland
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{
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namespace Server
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{
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class BufferInterface;
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}
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}
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namespace KWin
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{
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class KWIN_EXPORT AbstractEglBackend : public QObject, public OpenGLBackend
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{
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Q_OBJECT
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public:
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~AbstractEglBackend() override;
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bool makeCurrent() override;
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void doneCurrent() override;
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EGLDisplay eglDisplay() const {
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return m_display;
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}
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EGLContext context() const {
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return m_context;
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}
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EGLSurface surface() const {
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return m_surface;
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}
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EGLConfig config() const {
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return m_config;
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}
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protected:
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AbstractEglBackend();
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void setEglDisplay(const EGLDisplay &display);
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void setSurface(const EGLSurface &surface);
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void setConfig(const EGLConfig &config);
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void cleanup();
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virtual void cleanupSurfaces();
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bool initEglAPI();
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void initKWinGL();
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void initBufferAge();
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void initClientExtensions();
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void initWayland();
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bool hasClientExtension(const QByteArray &ext) const;
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bool isOpenGLES() const;
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bool createContext();
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private:
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void unbindWaylandDisplay();
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EGLDisplay m_display = EGL_NO_DISPLAY;
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EGLSurface m_surface = EGL_NO_SURFACE;
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EGLContext m_context = EGL_NO_CONTEXT;
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EGLConfig m_config = nullptr;
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QList<QByteArray> m_clientExtensions;
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};
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class KWIN_EXPORT AbstractEglTexture : public SceneOpenGLTexturePrivate
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{
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public:
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~AbstractEglTexture() override;
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bool loadTexture(WindowPixmap *pixmap) override;
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void updateTexture(WindowPixmap *pixmap) override;
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OpenGLBackend *backend() override;
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protected:
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AbstractEglTexture(SceneOpenGLTexture *texture, AbstractEglBackend *backend);
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EGLImageKHR image() const {
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return m_image;
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}
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void setImage(const EGLImageKHR &img) {
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m_image = img;
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}
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SceneOpenGLTexture *texture() const {
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return q;
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}
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private:
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bool loadShmTexture(const QPointer<KWayland::Server::BufferInterface> &buffer);
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bool loadEglTexture(const QPointer<KWayland::Server::BufferInterface> &buffer);
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EGLImageKHR attach(const QPointer<KWayland::Server::BufferInterface> &buffer);
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bool updateFromFBO(const QSharedPointer<QOpenGLFramebufferObject> &fbo);
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SceneOpenGLTexture *q;
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AbstractEglBackend *m_backend;
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EGLImageKHR m_image;
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};
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}
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#endif
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