017528956b
This way the Compositor can know if per screen rendering is enabled before creating the Scene.
63 lines
1.5 KiB
C++
63 lines
1.5 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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SPDX-FileCopyrightText: 2015 Martin Gräßlin <mgraesslin@kde.org>
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SPDX-License-Identifier: GPL-2.0-or-later
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*/
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#include "scene_qpainter_virtual_backend.h"
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#include "virtual_backend.h"
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#include "cursor.h"
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#include "screens.h"
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#include <QPainter>
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namespace KWin
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{
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VirtualQPainterBackend::VirtualQPainterBackend(VirtualBackend *backend)
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: QPainterBackend()
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, m_backend(backend)
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{
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connect(screens(), &Screens::changed, this, &VirtualQPainterBackend::createOutputs);
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createOutputs();
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}
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VirtualQPainterBackend::~VirtualQPainterBackend() = default;
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QImage *VirtualQPainterBackend::bufferForScreen(int screen)
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{
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return &m_backBuffers[screen];
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}
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bool VirtualQPainterBackend::needsFullRepaint(int screenId) const
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{
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Q_UNUSED(screenId)
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return true;
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}
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void VirtualQPainterBackend::beginFrame(int screenId)
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{
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Q_UNUSED(screenId)
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}
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void VirtualQPainterBackend::createOutputs()
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{
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m_backBuffers.clear();
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for (int i = 0; i < screens()->count(); ++i) {
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QImage buffer(screens()->size(i) * screens()->scale(i), QImage::Format_RGB32);
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buffer.fill(Qt::black);
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m_backBuffers << buffer;
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}
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}
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void VirtualQPainterBackend::endFrame(int screenId, int mask, const QRegion &damage)
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{
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Q_UNUSED(mask)
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Q_UNUSED(damage)
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if (m_backend->saveFrames()) {
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m_backBuffers[screenId].save(QStringLiteral("%1/screen%2-%3.png").arg(m_backend->screenshotDirPath(), QString::number(screenId), QString::number(m_frameCounter++)));
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}
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}
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}
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