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++ // Copyright (C) 2014 Klaralvdalens Datakonsult AB (KDAB).
++ // SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
++
++ #include "qscheduler_p.h"
++
++ #include <Qt3DCore/qabstractaspect.h>
++
++ #include <Qt3DCore/private/qabstractaspect_p.h>
++ #include <Qt3DCore/private/qaspectmanager_p.h>
++ #include <Qt3DCore/private/qaspectjob_p.h>
++ #include <Qt3DCore/private/qabstractaspectjobmanager_p.h>
++ #include <Qt3DCore/private/vector_helper_p.h>
++
++ #include <QtCore/QCoreApplication>
++ #include <QtCore/QDateTime>
++ #include <QtCore/QRegularExpression>
++
++ QT_BEGIN_NAMESPACE
++
++ namespace {
++
++ // Creates a graphviz dot file. To view online: https://dreampuf.github.io/GraphvizOnline/
++ void dumpJobs(const std::vector<Qt3DCore::QAspectJobPtr> &jobs) {
++ const QString fileName = QStringLiteral("qt3djobs_") + QCoreApplication::applicationName() +
++ QDateTime::currentDateTime().toString(QStringLiteral("_yyMMdd-hhmmss")) + QStringLiteral(".dot");
++
++ QFile f(fileName);
++ if (!f.open(QFile::WriteOnly))
++ return;
++
++ auto formatJob = [](Qt3DCore::QAspectJob *job) -> QString {
++ auto jobId = Qt3DCore::QAspectJobPrivate::get(job)->m_jobId;
++ auto type = Qt3DCore::QAspectJobPrivate::get(job)->m_jobName.replace(QRegularExpression(QLatin1String("(^.*::)")), QLatin1String(""));
++ return QString(QLatin1String("\"%1_%2\"")).arg(type).arg(jobId.typeAndInstance[1]);
++ };
++
++ QTextStream stream(&f);
++ stream << "digraph qt3d_jobs {" << Qt::endl;
++
++ for (const auto &job: jobs) {
++ if (!Qt3DCore::QAspectJobPrivate::get(job.data())->isRequired())
++ stream << QLatin1String("\t") << formatJob(job.data()) << QLatin1String(" [style=dotted]") << Qt::endl;
++ }
++
++ for (const auto &job: jobs) {
++ auto dependencies = job->dependencies();
++ for (const auto &dependency: dependencies)
++ stream << QLatin1String("\t") << formatJob(dependency.toStrongRef().data()) << QLatin1String(" -> ") << formatJob(job.data()) << Qt::endl;
++ }
++
++ stream << "}" << Qt::endl;
++ }
++
++ }
++
++ namespace Qt3DCore {
++
++ QScheduler::QScheduler(QObject *parent)
++ : QObject(parent)
++ , m_aspectManager(nullptr)
++ {
++ }
++
++ QScheduler::~QScheduler()
++ {
++ }
++
++ void QScheduler::setAspectManager(QAspectManager *aspectManager)
++ {
++ m_aspectManager = aspectManager;
++ }
++
++ QAspectManager *QScheduler::aspectManager() const
++ {
++ return m_aspectManager;
++ }
++
++ int QScheduler::scheduleAndWaitForFrameAspectJobs(qint64 time, bool dumpJobs)
++ {
++ std::vector<QAspectJobPtr> jobQueue;
++
++ // TODO: Allow clocks with custom scale factors and independent control
++ // over running / paused / stopped status
++ // TODO: Advance all clocks registered with the engine
++
++ // TODO: Set up dependencies between jobs as needed
++ // For now just queue them up as they are
++ const QList<QAbstractAspect *> &aspects = m_aspectManager->aspects();
++ for (QAbstractAspect *aspect : aspects) {
++ std::vector<QAspectJobPtr> aspectJobs = QAbstractAspectPrivate::get(aspect)->jobsToExecute(time);
++ Qt3DCore::moveAtEnd(jobQueue, std::move(aspectJobs));
++ }
++
++ if (jobQueue.empty())
++ return 0;
++
++ if (dumpJobs)
++ ::dumpJobs(jobQueue);
++
++ m_aspectManager->jobManager()->enqueueJobs(jobQueue);
++
++ // Do any other work here that the aspect thread can usefully be doing
++ // whilst the threadpool works its way through the jobs
++
++ const int totalJobs = m_aspectManager->jobManager()->waitForAllJobs();
++
++ {
++ QTaskLogger logger(m_aspectManager->serviceLocator()->systemInformation(), 4097, 0, QTaskLogger::AspectJob);
++
++ for (auto &job : std::as_const(jobQueue))
++ job->postFrame(m_aspectManager->engine());
++
++ for (QAbstractAspect *aspect : aspects)
++ aspect->jobsDone();
++ }
++
++ return totalJobs;
++ }
++
++ } // namespace Qt3DCore
++
++ QT_END_NAMESPACE
++
++ #include "moc_qscheduler_p.cpp"