817 lines
24 KiB
C++
817 lines
24 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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#include "drm_backend.h"
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#include "drm_output.h"
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#include "drm_object_connector.h"
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#include "drm_object_crtc.h"
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#include "drm_object_plane.h"
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#include "composite.h"
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#include "cursor.h"
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#include "logging.h"
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#include "logind.h"
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#include "main.h"
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#include "scene_qpainter_drm_backend.h"
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#include "screens_drm.h"
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#include "udev.h"
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#include "wayland_server.h"
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#if HAVE_GBM
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#include "egl_gbm_backend.h"
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#include <gbm.h>
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#endif
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#if HAVE_EGL_STREAMS
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#include "egl_stream_backend.h"
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#endif
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// KWayland
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#include <KWaylandServer/seat_interface.h>
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// KF5
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#include <KConfigGroup>
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#include <KCoreAddons>
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#include <KLocalizedString>
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#include <KSharedConfig>
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// Qt
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#include <QCryptographicHash>
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#include <QSocketNotifier>
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#include <QPainter>
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// system
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#include <algorithm>
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#include <unistd.h>
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// drm
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#include <xf86drm.h>
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#include <xf86drmMode.h>
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#include <libdrm/drm_mode.h>
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#ifndef DRM_CAP_CURSOR_WIDTH
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#define DRM_CAP_CURSOR_WIDTH 0x8
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#endif
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#ifndef DRM_CAP_CURSOR_HEIGHT
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#define DRM_CAP_CURSOR_HEIGHT 0x9
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#endif
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#define KWIN_DRM_EVENT_CONTEXT_VERSION 2
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namespace KWin
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{
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DrmBackend::DrmBackend(QObject *parent)
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: Platform(parent)
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, m_udev(new Udev)
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, m_udevMonitor(m_udev->monitor())
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, m_dpmsFilter()
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{
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#if HAVE_EGL_STREAMS
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if (qEnvironmentVariableIsSet("KWIN_DRM_USE_EGL_STREAMS")) {
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m_useEglStreams = true;
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}
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#endif
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setSupportsGammaControl(true);
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supportsOutputChanges();
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}
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DrmBackend::~DrmBackend()
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{
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#if HAVE_GBM
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if (m_gbmDevice) {
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gbm_device_destroy(m_gbmDevice);
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}
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#endif
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if (m_fd >= 0) {
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// wait for pageflips
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while (m_pageFlipsPending != 0) {
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QCoreApplication::processEvents(QEventLoop::WaitForMoreEvents);
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}
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qDeleteAll(m_planes);
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qDeleteAll(m_crtcs);
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qDeleteAll(m_connectors);
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close(m_fd);
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}
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}
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void DrmBackend::init()
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{
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LogindIntegration *logind = LogindIntegration::self();
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auto takeControl = [logind, this]() {
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if (logind->hasSessionControl()) {
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openDrm();
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} else {
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logind->takeControl();
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connect(logind, &LogindIntegration::hasSessionControlChanged, this, &DrmBackend::openDrm);
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}
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};
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if (logind->isConnected()) {
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takeControl();
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} else {
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connect(logind, &LogindIntegration::connectedChanged, this, takeControl);
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}
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}
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void DrmBackend::prepareShutdown()
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{
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writeOutputsConfiguration();
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for (DrmOutput *output : m_outputs) {
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output->teardown();
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}
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Platform::prepareShutdown();
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}
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Outputs DrmBackend::outputs() const
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{
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return m_outputs;
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}
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Outputs DrmBackend::enabledOutputs() const
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{
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return m_enabledOutputs;
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}
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void DrmBackend::createDpmsFilter()
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{
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if (!m_dpmsFilter.isNull()) {
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// already another output is off
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return;
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}
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m_dpmsFilter.reset(new DpmsInputEventFilter(this));
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input()->prependInputEventFilter(m_dpmsFilter.data());
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}
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void DrmBackend::turnOutputsOn()
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{
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m_dpmsFilter.reset();
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for (auto it = m_enabledOutputs.constBegin(), end = m_enabledOutputs.constEnd(); it != end; it++) {
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(*it)->updateDpms(KWaylandServer::OutputInterface::DpmsMode::On);
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}
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}
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void DrmBackend::checkOutputsAreOn()
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{
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if (m_dpmsFilter.isNull()) {
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// already disabled, all outputs are on
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return;
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}
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for (auto it = m_enabledOutputs.constBegin(), end = m_enabledOutputs.constEnd(); it != end; it++) {
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if (!(*it)->isDpmsEnabled()) {
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// dpms still disabled, need to keep the filter
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return;
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}
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}
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// all outputs are on, disable the filter
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m_dpmsFilter.reset();
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}
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void DrmBackend::activate(bool active)
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{
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if (active) {
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qCDebug(KWIN_DRM) << "Activating session.";
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reactivate();
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} else {
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qCDebug(KWIN_DRM) << "Deactivating session.";
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deactivate();
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}
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}
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void DrmBackend::reactivate()
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{
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if (m_active) {
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return;
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}
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m_active = true;
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if (!usesSoftwareCursor()) {
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Cursor* cursor = Cursors::self()->mouse();
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const QPoint cp = cursor->pos() - cursor->hotspot();
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for (auto it = m_outputs.constBegin(); it != m_outputs.constEnd(); ++it) {
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DrmOutput *o = *it;
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// only relevant in atomic mode
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o->m_modesetRequested = true;
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o->m_crtc->blank();
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o->showCursor();
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o->moveCursor(cursor, cp);
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}
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}
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// restart compositor
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m_pageFlipsPending = 0;
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if (Compositor *compositor = Compositor::self()) {
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compositor->bufferSwapComplete();
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compositor->addRepaintFull();
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}
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}
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void DrmBackend::deactivate()
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{
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if (!m_active) {
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return;
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}
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// block compositor
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if (m_pageFlipsPending == 0 && Compositor::self()) {
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Compositor::self()->aboutToSwapBuffers();
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}
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// hide cursor and disable
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for (auto it = m_outputs.constBegin(); it != m_outputs.constEnd(); ++it) {
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DrmOutput *o = *it;
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o->hideCursor();
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}
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m_active = false;
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}
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void DrmBackend::pageFlipHandler(int fd, unsigned int frame, unsigned int sec, unsigned int usec, void *data)
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{
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Q_UNUSED(fd)
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Q_UNUSED(frame)
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Q_UNUSED(sec)
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Q_UNUSED(usec)
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auto output = reinterpret_cast<DrmOutput*>(data);
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output->pageFlipped();
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output->m_backend->m_pageFlipsPending--;
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if (output->m_backend->m_pageFlipsPending == 0) {
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// TODO: improve, this currently means we wait for all page flips or all outputs.
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// It would be better to driver the repaint per output
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if (Compositor::self()) {
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Compositor::self()->bufferSwapComplete();
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}
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}
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}
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void DrmBackend::openDrm()
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{
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connect(LogindIntegration::self(), &LogindIntegration::sessionActiveChanged, this, &DrmBackend::activate);
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UdevDevice::Ptr device = m_udev->primaryGpu();
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if (!device) {
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qCWarning(KWIN_DRM) << "Did not find a GPU";
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return;
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}
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m_devNode = qEnvironmentVariableIsSet("KWIN_DRM_DEVICE_NODE") ? qgetenv("KWIN_DRM_DEVICE_NODE") : QByteArray(device->devNode());
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int fd = LogindIntegration::self()->takeDevice(m_devNode.constData());
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if (fd < 0) {
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qCWarning(KWIN_DRM) << "failed to open drm device at" << m_devNode;
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return;
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}
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m_fd = fd;
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m_active = true;
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QSocketNotifier *notifier = new QSocketNotifier(m_fd, QSocketNotifier::Read, this);
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connect(notifier, &QSocketNotifier::activated, this,
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[this] {
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if (!LogindIntegration::self()->isActiveSession()) {
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return;
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}
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drmEventContext e;
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memset(&e, 0, sizeof e);
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e.version = KWIN_DRM_EVENT_CONTEXT_VERSION;
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e.page_flip_handler = pageFlipHandler;
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drmHandleEvent(m_fd, &e);
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}
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);
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m_drmId = device->sysNum();
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// trying to activate Atomic Mode Setting (this means also Universal Planes)
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if (!qEnvironmentVariableIsSet("KWIN_DRM_NO_AMS")) {
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if (drmSetClientCap(m_fd, DRM_CLIENT_CAP_ATOMIC, 1) == 0) {
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qCDebug(KWIN_DRM) << "Using Atomic Mode Setting.";
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m_atomicModeSetting = true;
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DrmScopedPointer<drmModePlaneRes> planeResources(drmModeGetPlaneResources(m_fd));
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if (!planeResources) {
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qCWarning(KWIN_DRM) << "Failed to get plane resources. Falling back to legacy mode";
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m_atomicModeSetting = false;
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}
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if (m_atomicModeSetting) {
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qCDebug(KWIN_DRM) << "Number of planes:" << planeResources->count_planes;
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// create the plane objects
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for (unsigned int i = 0; i < planeResources->count_planes; ++i) {
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DrmScopedPointer<drmModePlane> kplane(drmModeGetPlane(m_fd, planeResources->planes[i]));
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DrmPlane *p = new DrmPlane(kplane->plane_id, m_fd);
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if (p->atomicInit()) {
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m_planes << p;
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if (p->type() == DrmPlane::TypeIndex::Overlay) {
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m_overlayPlanes << p;
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}
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} else {
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delete p;
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}
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}
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if (m_planes.isEmpty()) {
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qCWarning(KWIN_DRM) << "Failed to create any plane. Falling back to legacy mode";
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m_atomicModeSetting = false;
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}
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}
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} else {
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qCWarning(KWIN_DRM) << "drmSetClientCap for Atomic Mode Setting failed. Using legacy mode.";
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}
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}
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initCursor();
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if (!updateOutputs())
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return;
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if (m_outputs.isEmpty()) {
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qCDebug(KWIN_DRM) << "No connected outputs found on startup.";
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}
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// setup udevMonitor
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if (m_udevMonitor) {
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m_udevMonitor->filterSubsystemDevType("drm");
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const int fd = m_udevMonitor->fd();
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if (fd != -1) {
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QSocketNotifier *notifier = new QSocketNotifier(fd, QSocketNotifier::Read, this);
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connect(notifier, &QSocketNotifier::activated, this,
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[this] {
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auto device = m_udevMonitor->getDevice();
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if (!device) {
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return;
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}
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if (device->sysNum() != m_drmId) {
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return;
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}
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if (device->hasProperty("HOTPLUG", "1")) {
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qCDebug(KWIN_DRM) << "Received hot plug event for monitored drm device";
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updateOutputs();
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updateCursor();
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}
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}
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);
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m_udevMonitor->enable();
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}
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}
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setReady(true);
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}
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bool DrmBackend::updateOutputs()
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{
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if (m_fd < 0) {
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return false;
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}
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DrmScopedPointer<drmModeRes> resources(drmModeGetResources(m_fd));
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if (!resources) {
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qCWarning(KWIN_DRM) << "drmModeGetResources failed";
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return false;
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}
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auto oldConnectors = m_connectors;
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for (int i = 0; i < resources->count_connectors; ++i) {
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const uint32_t currentConnector = resources->connectors[i];
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auto it = std::find_if(m_connectors.constBegin(), m_connectors.constEnd(), [currentConnector] (DrmConnector *c) { return c->id() == currentConnector; });
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if (it == m_connectors.constEnd()) {
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auto c = new DrmConnector(currentConnector, m_fd);
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if (m_atomicModeSetting && !c->atomicInit()) {
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delete c;
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continue;
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}
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m_connectors << c;
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} else {
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oldConnectors.removeOne(*it);
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}
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}
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auto oldCrtcs = m_crtcs;
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for (int i = 0; i < resources->count_crtcs; ++i) {
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const uint32_t currentCrtc = resources->crtcs[i];
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auto it = std::find_if(m_crtcs.constBegin(), m_crtcs.constEnd(), [currentCrtc] (DrmCrtc *c) { return c->id() == currentCrtc; });
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if (it == m_crtcs.constEnd()) {
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auto c = new DrmCrtc(currentCrtc, this, i);
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if (m_atomicModeSetting && !c->atomicInit()) {
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delete c;
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continue;
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}
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m_crtcs << c;
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} else {
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oldCrtcs.removeOne(*it);
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}
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}
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for (auto c : qAsConst(oldConnectors)) {
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m_connectors.removeOne(c);
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}
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for (auto c : qAsConst(oldCrtcs)) {
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m_crtcs.removeOne(c);
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}
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QVector<DrmOutput*> connectedOutputs;
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QVector<DrmConnector*> pendingConnectors;
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// split up connected connectors in already or not yet assigned ones
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for (DrmConnector *con : qAsConst(m_connectors)) {
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if (!con->isConnected()) {
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continue;
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}
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if (DrmOutput *o = findOutput(con->id())) {
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connectedOutputs << o;
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} else {
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pendingConnectors << con;
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}
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}
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// check for outputs which got removed
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QVector<DrmOutput*> removedOutputs;
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auto it = m_outputs.begin();
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while (it != m_outputs.end()) {
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if (connectedOutputs.contains(*it)) {
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it++;
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continue;
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}
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DrmOutput *removed = *it;
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it = m_outputs.erase(it);
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m_enabledOutputs.removeOne(removed);
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emit outputRemoved(removed);
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removedOutputs.append(removed);
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}
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// now check new connections
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for (DrmConnector *con : qAsConst(pendingConnectors)) {
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DrmScopedPointer<drmModeConnector> connector(drmModeGetConnector(m_fd, con->id()));
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if (!connector) {
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continue;
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}
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if (connector->count_modes == 0) {
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continue;
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}
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bool outputDone = false;
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QVector<uint32_t> encoders = con->encoders();
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for (auto encId : qAsConst(encoders)) {
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DrmScopedPointer<drmModeEncoder> encoder(drmModeGetEncoder(m_fd, encId));
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if (!encoder) {
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continue;
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}
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for (DrmCrtc *crtc : qAsConst(m_crtcs)) {
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if (!(encoder->possible_crtcs & (1 << crtc->resIndex()))) {
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continue;
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}
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// check if crtc isn't used yet -- currently we don't allow multiple outputs on one crtc (cloned mode)
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auto it = std::find_if(connectedOutputs.constBegin(), connectedOutputs.constEnd(),
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[crtc] (DrmOutput *o) {
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return o->m_crtc == crtc;
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}
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);
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if (it != connectedOutputs.constEnd()) {
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continue;
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}
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// we found a suitable encoder+crtc
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// TODO: we could avoid these lib drm calls if we store all struct data in DrmCrtc and DrmConnector in the beginning
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DrmScopedPointer<drmModeCrtc> modeCrtc(drmModeGetCrtc(m_fd, crtc->id()));
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if (!modeCrtc) {
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continue;
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}
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DrmOutput *output = new DrmOutput(this);
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con->setOutput(output);
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output->m_conn = con;
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crtc->setOutput(output);
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output->m_crtc = crtc;
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if (modeCrtc->mode_valid) {
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output->m_mode = modeCrtc->mode;
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} else {
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output->m_mode = connector->modes[0];
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}
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qCDebug(KWIN_DRM) << "For new output use mode " << output->m_mode.name;
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if (!output->init(connector.data())) {
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qCWarning(KWIN_DRM) << "Failed to create output for connector " << con->id();
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delete output;
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continue;
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}
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if (!output->initCursor(m_cursorSize)) {
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setSoftWareCursor(true);
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}
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qCDebug(KWIN_DRM) << "Found new output with uuid" << output->uuid();
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connectedOutputs << output;
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emit outputAdded(output);
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outputDone = true;
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break;
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}
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if (outputDone) {
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break;
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}
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}
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}
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std::sort(connectedOutputs.begin(), connectedOutputs.end(), [] (DrmOutput *a, DrmOutput *b) { return a->m_conn->id() < b->m_conn->id(); });
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m_outputs = connectedOutputs;
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m_enabledOutputs = connectedOutputs;
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readOutputsConfiguration();
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updateOutputsEnabled();
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if (!m_outputs.isEmpty()) {
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emit screensQueried();
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}
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qDeleteAll(removedOutputs);
|
|
qDeleteAll(oldConnectors);
|
|
qDeleteAll(oldCrtcs);
|
|
return true;
|
|
}
|
|
|
|
void DrmBackend::readOutputsConfiguration()
|
|
{
|
|
if (m_outputs.isEmpty()) {
|
|
return;
|
|
}
|
|
const QByteArray uuid = generateOutputConfigurationUuid();
|
|
const auto outputGroup = kwinApp()->config()->group("DrmOutputs");
|
|
const auto configGroup = outputGroup.group(uuid);
|
|
// default position goes from left to right
|
|
QPoint pos(0, 0);
|
|
for (auto it = m_outputs.begin(); it != m_outputs.end(); ++it) {
|
|
qCDebug(KWIN_DRM) << "Reading output configuration for [" << uuid << "] ["<< (*it)->uuid() << "]";
|
|
const auto outputConfig = configGroup.group((*it)->uuid());
|
|
(*it)->setGlobalPos(outputConfig.readEntry<QPoint>("Position", pos));
|
|
// TODO: add mode
|
|
if (outputConfig.hasKey("Scale"))
|
|
(*it)->setScale(outputConfig.readEntry("Scale", 1.0));
|
|
pos.setX(pos.x() + (*it)->geometry().width());
|
|
}
|
|
}
|
|
|
|
void DrmBackend::writeOutputsConfiguration()
|
|
{
|
|
if (m_outputs.isEmpty()) {
|
|
return;
|
|
}
|
|
const QByteArray uuid = generateOutputConfigurationUuid();
|
|
auto configGroup = KSharedConfig::openConfig()->group("DrmOutputs").group(uuid);
|
|
// default position goes from left to right
|
|
for (auto it = m_outputs.cbegin(); it != m_outputs.cend(); ++it) {
|
|
qCDebug(KWIN_DRM) << "Writing output configuration for [" << uuid << "] ["<< (*it)->uuid() << "]";
|
|
auto outputConfig = configGroup.group((*it)->uuid());
|
|
outputConfig.writeEntry("Scale", (*it)->scale());
|
|
}
|
|
}
|
|
|
|
QByteArray DrmBackend::generateOutputConfigurationUuid() const
|
|
{
|
|
auto it = m_outputs.constBegin();
|
|
if (m_outputs.size() == 1) {
|
|
// special case: one output
|
|
return (*it)->uuid();
|
|
}
|
|
QCryptographicHash hash(QCryptographicHash::Md5);
|
|
for (; it != m_outputs.constEnd(); ++it) {
|
|
hash.addData((*it)->uuid());
|
|
}
|
|
return hash.result().toHex().left(10);
|
|
}
|
|
|
|
void DrmBackend::enableOutput(DrmOutput *output, bool enable)
|
|
{
|
|
if (enable) {
|
|
Q_ASSERT(!m_enabledOutputs.contains(output));
|
|
m_enabledOutputs << output;
|
|
emit outputAdded(output);
|
|
} else {
|
|
Q_ASSERT(m_enabledOutputs.contains(output));
|
|
m_enabledOutputs.removeOne(output);
|
|
Q_ASSERT(!m_enabledOutputs.contains(output));
|
|
emit outputRemoved(output);
|
|
}
|
|
updateOutputsEnabled();
|
|
checkOutputsAreOn();
|
|
emit screensQueried();
|
|
}
|
|
|
|
DrmOutput *DrmBackend::findOutput(quint32 connector)
|
|
{
|
|
auto it = std::find_if(m_outputs.constBegin(), m_outputs.constEnd(), [connector] (DrmOutput *o) {
|
|
return o->m_conn->id() == connector;
|
|
});
|
|
if (it != m_outputs.constEnd()) {
|
|
return *it;
|
|
}
|
|
return nullptr;
|
|
}
|
|
|
|
bool DrmBackend::present(DrmBuffer *buffer, DrmOutput *output)
|
|
{
|
|
if (!buffer || buffer->bufferId() == 0) {
|
|
if (m_deleteBufferAfterPageFlip) {
|
|
delete buffer;
|
|
}
|
|
return false;
|
|
}
|
|
|
|
if (output->present(buffer)) {
|
|
m_pageFlipsPending++;
|
|
if (m_pageFlipsPending == 1 && Compositor::self()) {
|
|
Compositor::self()->aboutToSwapBuffers();
|
|
}
|
|
return true;
|
|
} else if (m_deleteBufferAfterPageFlip) {
|
|
delete buffer;
|
|
}
|
|
return false;
|
|
}
|
|
|
|
void DrmBackend::initCursor()
|
|
{
|
|
|
|
#if HAVE_EGL_STREAMS
|
|
// Hardware cursors aren't currently supported with EGLStream backend,
|
|
// possibly an NVIDIA driver bug
|
|
if (m_useEglStreams) {
|
|
setSoftWareCursor(true);
|
|
}
|
|
#endif
|
|
|
|
m_cursorEnabled = waylandServer()->seat()->hasPointer();
|
|
connect(waylandServer()->seat(), &KWaylandServer::SeatInterface::hasPointerChanged, this,
|
|
[this] {
|
|
m_cursorEnabled = waylandServer()->seat()->hasPointer();
|
|
if (usesSoftwareCursor()) {
|
|
return;
|
|
}
|
|
for (auto it = m_outputs.constBegin(); it != m_outputs.constEnd(); ++it) {
|
|
if (m_cursorEnabled) {
|
|
if (!(*it)->showCursor()) {
|
|
setSoftWareCursor(true);
|
|
}
|
|
} else {
|
|
(*it)->hideCursor();
|
|
}
|
|
}
|
|
}
|
|
);
|
|
uint64_t capability = 0;
|
|
QSize cursorSize;
|
|
if (drmGetCap(m_fd, DRM_CAP_CURSOR_WIDTH, &capability) == 0) {
|
|
cursorSize.setWidth(capability);
|
|
} else {
|
|
cursorSize.setWidth(64);
|
|
}
|
|
if (drmGetCap(m_fd, DRM_CAP_CURSOR_HEIGHT, &capability) == 0) {
|
|
cursorSize.setHeight(capability);
|
|
} else {
|
|
cursorSize.setHeight(64);
|
|
}
|
|
m_cursorSize = cursorSize;
|
|
// now we have screens and can set cursors, so start tracking
|
|
connect(Cursors::self(), &Cursors::currentCursorChanged, this, &DrmBackend::updateCursor);
|
|
connect(Cursors::self(), &Cursors::positionChanged, this, &DrmBackend::moveCursor);
|
|
}
|
|
|
|
void DrmBackend::setCursor()
|
|
{
|
|
if (m_cursorEnabled) {
|
|
for (auto it = m_outputs.constBegin(); it != m_outputs.constEnd(); ++it) {
|
|
if (!(*it)->showCursor()) {
|
|
setSoftWareCursor(true);
|
|
}
|
|
}
|
|
}
|
|
|
|
Cursors::self()->currentCursor()->markAsRendered();
|
|
}
|
|
|
|
void DrmBackend::updateCursor()
|
|
{
|
|
if (usesSoftwareCursor()) {
|
|
return;
|
|
}
|
|
if (isCursorHidden()) {
|
|
return;
|
|
}
|
|
|
|
auto cursor = Cursors::self()->currentCursor();
|
|
const QImage &cursorImage = cursor->image();
|
|
if (cursorImage.isNull()) {
|
|
doHideCursor();
|
|
return;
|
|
}
|
|
for (auto it = m_outputs.constBegin(); it != m_outputs.constEnd(); ++it) {
|
|
(*it)->updateCursor();
|
|
}
|
|
|
|
setCursor();
|
|
|
|
moveCursor(cursor, cursor->pos());
|
|
}
|
|
|
|
void DrmBackend::doShowCursor()
|
|
{
|
|
updateCursor();
|
|
}
|
|
|
|
void DrmBackend::doHideCursor()
|
|
{
|
|
if (!m_cursorEnabled || usesSoftwareCursor()) {
|
|
return;
|
|
}
|
|
for (auto it = m_outputs.constBegin(); it != m_outputs.constEnd(); ++it) {
|
|
(*it)->hideCursor();
|
|
}
|
|
}
|
|
|
|
void DrmBackend::moveCursor(Cursor *cursor, const QPoint &pos)
|
|
{
|
|
if (!m_cursorEnabled || isCursorHidden() || usesSoftwareCursor()) {
|
|
return;
|
|
}
|
|
for (auto it = m_outputs.constBegin(); it != m_outputs.constEnd(); ++it) {
|
|
(*it)->moveCursor(cursor, pos);
|
|
}
|
|
}
|
|
|
|
Screens *DrmBackend::createScreens(QObject *parent)
|
|
{
|
|
return new DrmScreens(this, parent);
|
|
}
|
|
|
|
QPainterBackend *DrmBackend::createQPainterBackend()
|
|
{
|
|
m_deleteBufferAfterPageFlip = false;
|
|
return new DrmQPainterBackend(this);
|
|
}
|
|
|
|
OpenGLBackend *DrmBackend::createOpenGLBackend()
|
|
{
|
|
#if HAVE_EGL_STREAMS
|
|
if (m_useEglStreams) {
|
|
m_deleteBufferAfterPageFlip = false;
|
|
return new EglStreamBackend(this);
|
|
}
|
|
#endif
|
|
|
|
#if HAVE_GBM
|
|
m_deleteBufferAfterPageFlip = true;
|
|
return new EglGbmBackend(this);
|
|
#else
|
|
return Platform::createOpenGLBackend();
|
|
#endif
|
|
}
|
|
|
|
DrmDumbBuffer *DrmBackend::createBuffer(const QSize &size)
|
|
{
|
|
DrmDumbBuffer *b = new DrmDumbBuffer(m_fd, size);
|
|
return b;
|
|
}
|
|
|
|
#if HAVE_GBM
|
|
DrmSurfaceBuffer *DrmBackend::createBuffer(const std::shared_ptr<GbmSurface> &surface)
|
|
{
|
|
DrmSurfaceBuffer *b = new DrmSurfaceBuffer(m_fd, surface);
|
|
return b;
|
|
}
|
|
#endif
|
|
|
|
void DrmBackend::updateOutputsEnabled()
|
|
{
|
|
bool enabled = false;
|
|
for (auto it = m_enabledOutputs.constBegin(); it != m_enabledOutputs.constEnd(); ++it) {
|
|
enabled = enabled || (*it)->isDpmsEnabled();
|
|
}
|
|
setOutputsEnabled(enabled);
|
|
}
|
|
|
|
QVector<CompositingType> DrmBackend::supportedCompositors() const
|
|
{
|
|
if (selectedCompositor() != NoCompositing) {
|
|
return {selectedCompositor()};
|
|
}
|
|
#if HAVE_GBM
|
|
return QVector<CompositingType>{OpenGLCompositing, QPainterCompositing};
|
|
#elif HAVE_EGL_STREAMS
|
|
return m_useEglStreams ?
|
|
QVector<CompositingType>{OpenGLCompositing, QPainterCompositing} :
|
|
QVector<CompositingType>{QPainterCompositing};
|
|
#else
|
|
return QVector<CompositingType>{QPainterCompositing};
|
|
#endif
|
|
}
|
|
|
|
QString DrmBackend::supportInformation() const
|
|
{
|
|
QString supportInfo;
|
|
QDebug s(&supportInfo);
|
|
s.nospace();
|
|
s << "Name: " << "DRM" << Qt::endl;
|
|
s << "Active: " << m_active << Qt::endl;
|
|
s << "Atomic Mode Setting: " << m_atomicModeSetting << Qt::endl;
|
|
#if HAVE_EGL_STREAMS
|
|
s << "Using EGL Streams: " << m_useEglStreams << Qt::endl;
|
|
#endif
|
|
return supportInfo;
|
|
}
|
|
|
|
}
|