bfa9646d1d
A new backend which doesn't present the rendered output. It uses a QPainter scene, renders to a QImage but doesn't present it anywhere. Thus a real virtual backend. By exporting the environment variable KWIN_WAYLAND_VIRTUAL_SCREENSHOTS the backend creates a temporary dir, prints the path to std-out and saves each rendered frame into that directory. Of course with exit it will be deleted again.
59 lines
1.6 KiB
C++
59 lines
1.6 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_X11WINDOWED_BACKEND_H
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#define KWIN_X11WINDOWED_BACKEND_H
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#include "abstract_backend.h"
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#include <kwin_export.h>
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#include <QObject>
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#include <QSize>
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namespace KWin
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{
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class KWIN_EXPORT VirtualBackend : public AbstractBackend
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{
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Q_OBJECT
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Q_INTERFACES(KWin::AbstractBackend)
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Q_PLUGIN_METADATA(IID "org.kde.kwin.AbstractBackend" FILE "virtual.json")
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Q_PROPERTY(QSize size READ size NOTIFY sizeChanged)
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public:
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VirtualBackend(QObject *parent = nullptr);
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virtual ~VirtualBackend();
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void init() override;
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QSize size() const {
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return m_size;
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}
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Screens *createScreens(QObject *parent = nullptr) override;
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QPainterBackend* createQPainterBackend() override;
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Q_SIGNALS:
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void sizeChanged();
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private:
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QSize m_size;
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};
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}
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#endif
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