/* KWin - the KDE window manager This file is part of the KDE project. SPDX-FileCopyrightText: 2015 Martin Gräßlin <mgraesslin@kde.org> SPDX-License-Identifier: GPL-2.0-or-later */ #include "scene_qpainter_virtual_backend.h" #include "cursor.h" #include "screens.h" #include "softwarevsyncmonitor.h" #include "virtual_backend.h" #include "virtual_output.h" #include <QPainter> namespace KWin { VirtualQPainterBackend::VirtualQPainterBackend(VirtualBackend *backend) : QPainterBackend() , m_backend(backend) { connect(screens(), &Screens::changed, this, &VirtualQPainterBackend::createOutputs); createOutputs(); } VirtualQPainterBackend::~VirtualQPainterBackend() = default; QImage *VirtualQPainterBackend::bufferForScreen(int screen) { return &m_backBuffers[screen]; } bool VirtualQPainterBackend::needsFullRepaint(int screenId) const { Q_UNUSED(screenId) return true; } void VirtualQPainterBackend::beginFrame(int screenId) { Q_UNUSED(screenId) } void VirtualQPainterBackend::createOutputs() { m_backBuffers.clear(); for (int i = 0; i < screens()->count(); ++i) { QImage buffer(screens()->size(i) * screens()->scale(i), QImage::Format_RGB32); buffer.fill(Qt::black); m_backBuffers << buffer; } } void VirtualQPainterBackend::endFrame(int screenId, int mask, const QRegion &damage) { Q_UNUSED(mask) Q_UNUSED(damage) VirtualOutput *output = static_cast<VirtualOutput *>(m_backend->findOutput(screenId)); output->vsyncMonitor()->arm(); if (m_backend->saveFrames()) { m_backBuffers[screenId].save(QStringLiteral("%1/screen%2-%3.png").arg(m_backend->screenshotDirPath(), QString::number(screenId), QString::number(m_frameCounter++))); } } }