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/****************************************************************************
**
** Copyright (C) 2014 Klaralvdalens Datakonsult AB (KDAB).
** Contact: https://www.qt.io/licensing/
**
** This file is part of the Qt3D module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and The Qt Company. For licensing terms
** and conditions see https://www.qt.io/terms-conditions. For further
** information use the contact form at https://www.qt.io/contact-us.
**
** GNU Lesser General Public License Usage
** Alternatively, this file may be used under the terms of the GNU Lesser
** General Public License version 3 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPL3 included in the
** packaging of this file. Please review the following information to
** ensure the GNU Lesser General Public License version 3 requirements
** will be met: https://www.gnu.org/licenses/lgpl-3.0.html.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 2.0 or (at your option) the GNU General
** Public license version 3 or any later version approved by the KDE Free
** Qt Foundation. The licenses are as published by the Free Software
** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3
** included in the packaging of this file. Please review the following
** information to ensure the GNU General Public License requirements will
** be met: https://www.gnu.org/licenses/gpl-2.0.html and
** https://www.gnu.org/licenses/gpl-3.0.html.
**
** $QT_END_LICENSE$
**
****************************************************************************/
#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 <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(QVector<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(job.data()) << QLatin1String(" -> ") << formatJob(dependency.toStrongRef().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)
{
QVector<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 QVector<QAbstractAspect *> &aspects = m_aspectManager->aspects();
for (QAbstractAspect *aspect : aspects) {
const QVector<QAspectJobPtr> aspectJobs = QAbstractAspectPrivate::get(aspect)->jobsToExecute(time);
jobQueue << aspectJobs;
}
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
int totalJobs = m_aspectManager->jobManager()->waitForAllJobs();
{
QTaskLogger logger(m_aspectManager->serviceLocator()->systemInformation(), 4097, 0, QTaskLogger::AspectJob);
for (auto &job : qAsConst(jobQueue))
QAspectJobPrivate::get(job.data())->postFrame(m_aspectManager);
for (QAbstractAspect *aspect : aspects)
QAbstractAspectPrivate::get(aspect)->jobsDone();
}
return totalJobs;
}
} // namespace Qt3DCore
QT_END_NAMESPACE
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