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
88 lines
2 KiB
C++
88 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 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_DRM_BUFFER_H
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#define KWIN_DRM_BUFFER_H
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#include <QImage>
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#include <QSize>
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namespace KWin
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{
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class DrmBuffer
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{
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public:
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DrmBuffer(int fd);
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virtual ~DrmBuffer() = default;
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virtual bool needsModeChange(DrmBuffer *b) const {Q_UNUSED(b) return false;}
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quint32 bufferId() const {
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return m_bufferId;
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}
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const QSize &size() const {
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return m_size;
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}
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virtual void releaseGbm() {}
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int fd() const {
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return m_fd;
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}
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protected:
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quint32 m_bufferId = 0;
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QSize m_size;
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int m_fd;
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};
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class DrmDumbBuffer : public DrmBuffer
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{
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public:
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DrmDumbBuffer(int fd, const QSize &size);
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~DrmDumbBuffer() override;
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bool needsModeChange(DrmBuffer *b) const override;
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bool map(QImage::Format format = QImage::Format_RGB32);
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quint32 handle() const {
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return m_handle;
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}
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QImage *image() const {
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return m_image;
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}
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quint32 stride() const {
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return m_stride;
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}
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private:
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quint32 m_handle = 0;
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quint64 m_bufferSize = 0;
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void *m_memory = nullptr;
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QImage *m_image = nullptr;
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quint32 m_stride = 0;
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};
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}
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#endif
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