150 lines
3.5 KiB
C++
150 lines
3.5 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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#ifndef KWIN_DRM_BACKEND_H
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#define KWIN_DRM_BACKEND_H
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#include "platform.h"
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#include "input.h"
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#include "drm_buffer.h"
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#if HAVE_GBM
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#include "drm_buffer_gbm.h"
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#endif
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#include "drm_inputeventfilter.h"
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#include "drm_pointer.h"
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#include <QElapsedTimer>
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#include <QImage>
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#include <QPointer>
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#include <QSize>
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#include <QVector>
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#include <xf86drmMode.h>
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#include <memory>
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struct gbm_bo;
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struct gbm_device;
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struct gbm_surface;
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namespace KWin
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{
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class Udev;
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class UdevMonitor;
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class DrmOutput;
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class DrmPlane;
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class DrmCrtc;
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class DrmConnector;
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class GbmSurface;
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class Cursor;
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class DrmGpu;
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class KWIN_EXPORT DrmBackend : public Platform
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{
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Q_OBJECT
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Q_INTERFACES(KWin::Platform)
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Q_PLUGIN_METADATA(IID "org.kde.kwin.Platform" FILE "drm.json")
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public:
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explicit DrmBackend(QObject *parent = nullptr);
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~DrmBackend() override;
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Screens *createScreens(QObject *parent = nullptr) override;
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QPainterBackend *createQPainterBackend() override;
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OpenGLBackend* createOpenGLBackend() override;
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DmaBufTexture *createDmaBufTexture(const QSize &size) override;
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void init() override;
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void prepareShutdown() override;
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bool present(DrmBuffer *buffer, DrmOutput *output);
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Outputs outputs() const override;
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Outputs enabledOutputs() const override;
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QVector<DrmOutput*> drmOutputs() const {
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return m_outputs;
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}
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QVector<DrmOutput*> drmEnabledOutputs() const {
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return m_enabledOutputs;
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}
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void enableOutput(DrmOutput *output, bool enable);
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void createDpmsFilter();
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void checkOutputsAreOn();
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// QPainter reuses buffers
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bool deleteBufferAfterPageFlip() const {
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return m_deleteBufferAfterPageFlip;
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}
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#if HAVE_EGL_STREAMS
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bool useEglStreams() const {
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return m_useEglStreams;
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}
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#endif
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QVector<CompositingType> supportedCompositors() const override;
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QString supportInformation() const override;
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bool isCursorEnabled() const {
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return m_cursorEnabled;
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};
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public Q_SLOTS:
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void turnOutputsOn();
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protected:
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void doHideCursor() override;
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void doShowCursor() override;
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private:
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friend class DrmGpu;
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void addOutput(DrmOutput* output);
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void removeOutput(DrmOutput* output);
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static void pageFlipHandler(int fd, unsigned int frame, unsigned int sec, unsigned int usec, void *data);
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void openDrm();
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void activate(bool active);
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void reactivate();
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void deactivate();
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bool updateOutputs();
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void setCursor();
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void updateCursor();
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void moveCursor(Cursor *cursor, const QPoint &pos);
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void initCursor();
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void readOutputsConfiguration();
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void writeOutputsConfiguration();
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QByteArray generateOutputConfigurationUuid() const;
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DrmOutput *findOutput(quint32 connector);
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void updateOutputsEnabled();
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QScopedPointer<Udev> m_udev;
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QScopedPointer<UdevMonitor> m_udevMonitor;
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// active output pipelines (planes + crtc + encoder + connector)
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QVector<DrmOutput*> m_outputs;
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// active and enabled pipelines (above + wl_output)
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QVector<DrmOutput*> m_enabledOutputs;
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bool m_deleteBufferAfterPageFlip;
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bool m_cursorEnabled = false;
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QSize m_cursorSize;
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int m_pageFlipsPending = 0;
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bool m_active = false;
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#if HAVE_EGL_STREAMS
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bool m_useEglStreams = false;
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#endif
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QVector<DrmGpu*> m_gpus;
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QScopedPointer<DpmsInputEventFilter> m_dpmsFilter;
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};
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}
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#endif
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