1776b5f927
Summary: Output scaling can't ever work on a single buffer; especially if they're different scales and overlapping. This ports the virtual backend to perScreenRendering so that I can use it for tests. ctest fails here, but it fails on the tests that it failed on before.. Reviewers: #plasma Subscribers: plasma-devel, kwin Tags: #kwin Differential Revision: https://phabricator.kde.org/D3306
57 lines
1.7 KiB
C++
57 lines
1.7 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_SCENE_QPAINTER_VIRTUAL_BACKEND_H
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#define KWIN_SCENE_QPAINTER_VIRTUAL_BACKEND_H
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#include "scene_qpainter.h"
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#include <QObject>
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namespace KWin
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{
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class VirtualBackend;
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class VirtualQPainterBackend : public QObject, public QPainterBackend
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{
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Q_OBJECT
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public:
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VirtualQPainterBackend(VirtualBackend *backend);
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virtual ~VirtualQPainterBackend();
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QImage *buffer() override;
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QImage *bufferForScreen(int screenId) override;
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bool needsFullRepaint() const override;
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bool usesOverlayWindow() const override;
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void prepareRenderingFrame() override;
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void present(int mask, const QRegion &damage) override;
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bool perScreenRendering() const override;
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private:
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void createOutputs();
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QVector<QImage> m_backBuffers;
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VirtualBackend *m_backend;
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int m_frameCounter = 0;
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};
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}
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#endif
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