File indexing completed on 2025-04-20 10:57:37

 /*
     KWin - the KDE window manager
     This file is part of the KDE project.
 
     SPDX-FileCopyrightText: 2018 Roman Gilg <subdiff@gmail.com>
     SPDX-FileCopyrightText: 2021 Xaver Hugl <xaver.hugl@gmail.com>
 
     SPDX-License-Identifier: GPL-2.0-or-later
 */
 #include "drm_virtual_output.h"
 
 #include "core/renderloop_p.h"
 #include "drm_backend.h"
 #include "drm_gpu.h"
 #include "drm_layer.h"
 #include "drm_logging.h"
 #include "drm_render_backend.h"
 #include "softwarevsyncmonitor.h"
 
 namespace KWin
 {
 
 DrmVirtualOutput::DrmVirtualOutput(const QString &name, DrmGpu *gpu, const QSize &size, qreal scale)
     : DrmAbstractOutput(gpu)
     , m_vsyncMonitor(SoftwareVsyncMonitor::create())
 {
     connect(m_vsyncMonitor.get(), &VsyncMonitor::vblankOccurred, this, &DrmVirtualOutput::vblank);
 
     auto mode = std::make_shared<OutputMode>(size, 60000, OutputMode::Flag::Preferred);
     m_renderLoop->setRefreshRate(mode->refreshRate());
 
     setInformation(Information{
         .name = QStringLiteral("Virtual-") + name,
         .physicalSize = size,
     });
 
     setState(State{
         .scale = scale,
         .modes = {mode},
         .currentMode = mode,
     });
 
     recreateSurface();
 }
 
 DrmVirtualOutput::~DrmVirtualOutput()
 {
 }
 
 bool DrmVirtualOutput::present()
 {
     m_vsyncMonitor->arm();
     m_pageFlipPending = true;
     Q_EMIT outputChange(m_layer->currentDamage());
     return true;
 }
 
 void DrmVirtualOutput::vblank(std::chrono::nanoseconds timestamp)
 {
     if (m_pageFlipPending) {
         DrmAbstractOutput::pageFlipped(timestamp);
     }
 }
 
 void DrmVirtualOutput::setDpmsMode(DpmsMode mode)
 {
     State next = m_state;
     next.dpmsMode = mode;
     setState(next);
 }
 
 DrmOutputLayer *DrmVirtualOutput::primaryLayer() const
 {
     return m_layer.get();
 }
 
 void DrmVirtualOutput::recreateSurface()
 {
     m_layer = m_gpu->platform()->renderBackend()->createLayer(this);
 }
 
 }