virtual_output.h

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/*
    KWin - the KDE window manager
    This file is part of the KDE project.
 
    SPDX-FileCopyrightText: 2018 Roman Gilg <subdiff@gmail.com>
 
    SPDX-License-Identifier: GPL-2.0-or-later
*/
#pragma once
 
#include "core/output.h"
 
#include <QObject>
#include <QRect>
 
namespace KWin
{
 
class SoftwareVsyncMonitor;
class VirtualBackend;
class OutputFrame;
 
class VirtualOutput : public Output
{
    Q_OBJECT
 
public:
    VirtualOutput(VirtualBackend *parent, bool internal);
    ~VirtualOutput() override;
 
    RenderLoop *renderLoop() const override;
    void present(const std::shared_ptr<OutputFrame> &frame);
 
    void init(const QPoint &logicalPosition, const QSize &pixelSize, qreal scale);
    void updateEnabled(bool enabled);
 
private:
    void vblank(std::chrono::nanoseconds timestamp);
 
    Q_DISABLE_COPY(VirtualOutput);
    friend class VirtualBackend;
 
    VirtualBackend *m_backend;
    std::unique_ptr<RenderLoop> m_renderLoop;
    std::unique_ptr<SoftwareVsyncMonitor> m_vsyncMonitor;
    int m_gammaSize = 200;
    bool m_gammaResult = true;
    int m_identifier;
    std::shared_ptr<OutputFrame> m_frame;
};
 
} // namespace KWin