cd9a0afafa
Summary: If it's not possible to create a buffer to blank the output, KWin won't be able to render to the output. In that case the output should not be added to the list of outputs. To support this DrmOutput::blank and DrmOutput::init return bool to indicate whether they succeeded. DrmBackend handles this situation and doesn't add the output to the list of outputs if init failed. If after init there are no outputs KWin is in a state where it won't be functional. Thus the platform emits the initFailed signal to terminate. BUG: 365242 FIXED-IN: 5.7.2 Test Plan: No hardware to reproduce the condition Reviewers: #kwin, #plasma_on_wayland Subscribers: plasma-devel, kwin Tags: #plasma_on_wayland, #kwin Differential Revision: https://phabricator.kde.org/D2135
137 lines
3.6 KiB
C++
137 lines
3.6 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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Copyright (C) 2015 Martin Gräßlin <mgraesslin@kde.org>
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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*********************************************************************/
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#ifndef KWIN_DRM_OUTPUT_H
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#define KWIN_DRM_OUTPUT_H
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#include "drm_pointer.h"
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#include <QObject>
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#include <QPoint>
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#include <QPointer>
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#include <QSize>
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#include <xf86drmMode.h>
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namespace KWayland
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{
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namespace Server
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{
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class OutputInterface;
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class OutputDeviceInterface;
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class OutputChangeSet;
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class OutputManagementInterface;
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}
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}
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namespace KWin
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{
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class DrmBackend;
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class DrmBuffer;
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class DrmOutput : public QObject
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{
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Q_OBJECT
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public:
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struct Edid {
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QByteArray eisaId;
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QByteArray monitorName;
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QByteArray serialNumber;
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QSize physicalSize;
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};
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virtual ~DrmOutput();
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void showCursor(DrmBuffer *buffer);
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void hideCursor();
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void moveCursor(const QPoint &globalPos);
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bool present(DrmBuffer *buffer);
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void pageFlipped();
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bool init(drmModeConnector *connector);
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void restoreSaved();
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bool blank();
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/**
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* This sets the changes and tests them against the DRM output
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*/
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void setChanges(KWayland::Server::OutputChangeSet *changeset);
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bool commitChanges();
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QSize size() const;
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QRect geometry() const;
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QString name() const;
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int currentRefreshRate() const;
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enum class DpmsMode {
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On = DRM_MODE_DPMS_ON,
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Standby = DRM_MODE_DPMS_STANDBY,
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Suspend = DRM_MODE_DPMS_SUSPEND,
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Off = DRM_MODE_DPMS_OFF
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};
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void setDpms(DpmsMode mode);
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bool isDpmsEnabled() const {
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return m_dpmsMode == DpmsMode::On;
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}
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QByteArray uuid() const {
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return m_uuid;
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}
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Q_SIGNALS:
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void dpmsChanged();
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private:
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friend class DrmBackend;
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DrmOutput(DrmBackend *backend);
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void cleanupBlackBuffer();
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bool setMode(DrmBuffer *buffer);
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void initEdid(drmModeConnector *connector);
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void initDpms(drmModeConnector *connector);
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bool isCurrentMode(const drmModeModeInfo *mode) const;
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void initUuid();
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void setGlobalPos(const QPoint &pos);
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DrmBackend *m_backend;
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QPoint m_globalPos;
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quint32 m_crtcId = 0;
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quint32 m_connector = 0;
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quint32 m_lastStride = 0;
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bool m_lastGbm = false;
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drmModeModeInfo m_mode;
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DrmBuffer *m_currentBuffer = nullptr;
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DrmBuffer *m_blackBuffer = nullptr;
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struct CrtcCleanup {
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static void inline cleanup(_drmModeCrtc *ptr) {
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drmModeFreeCrtc(ptr);
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}
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};
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Edid m_edid;
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QScopedPointer<_drmModeCrtc, CrtcCleanup> m_savedCrtc;
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QPointer<KWayland::Server::OutputInterface> m_waylandOutput;
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QPointer<KWayland::Server::OutputDeviceInterface> m_waylandOutputDevice;
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QPointer<KWayland::Server::OutputChangeSet> m_changeset;
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KWin::ScopedDrmPointer<_drmModeProperty, &drmModeFreeProperty> m_dpms;
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DpmsMode m_dpmsMode = DpmsMode::On;
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QByteArray m_uuid;
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};
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}
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Q_DECLARE_METATYPE(KWin::DrmOutput*)
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#endif
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