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/****************************************************************************
**
** Copyright (C) 2014 Klaralvdalens Datakonsult AB (KDAB).
** Contact: http://www.qt-project.org/legal
**
** This file is part of the Qt3D module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL3$
** 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 http://www.qt.io/terms-conditions. For further
** information use the contact form at http://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.LGPLv3 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.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 later as published by the Free
** Software Foundation and appearing in the file LICENSE.GPL included in
** the packaging of this file. Please review the following information to
** ensure the GNU General Public License version 2.0 requirements will be
** met: http://www.gnu.org/licenses/gpl-2.0.html.
**
** $QT_END_LICENSE$
**
****************************************************************************/
#include "qaspectmanager_p.h"
#include "qabstractaspect.h"
#include "qabstractaspect_p.h"
#include "qchangearbiter_p.h"
// TODO Make the kind of job manager configurable (e.g. ThreadWeaver vs Intel TBB)
#include "qaspectjobmanager.h"
#include "qabstractaspectjobmanager.h"
#include "qentity.h"
#include <Qt3DCore/qservicelocator.h>
#include <Qt3DCore/private/corelogging_p.h>
#include <Qt3DCore/private/qscheduler_p.h>
#include <Qt3DCore/private/qtickclock_p.h>
#include <QEventLoop>
#include <QThread>
#include <QWaitCondition>
#include <QSurface>
QT_BEGIN_NAMESPACE
namespace Qt3D {
QAspectManager::QAspectManager(QObject *parent)
: QObject(parent)
, m_root(Q_NULLPTR)
, m_scheduler(new QScheduler(this))
, m_jobManager(new QAspectJobManager(this))
, m_changeArbiter(new QChangeArbiter(this))
, m_serviceLocator(new QServiceLocator())
{
qRegisterMetaType<QSurface *>("QSurface*");
m_runMainLoop.fetchAndStoreOrdered(0);
m_terminated.fetchAndStoreOrdered(0);
qCDebug(Aspects) << Q_FUNC_INFO;
}
QAspectManager::~QAspectManager()
{
delete m_changeArbiter;
delete m_jobManager;
delete m_scheduler;
}
void QAspectManager::initialize()
{
qCDebug(Aspects) << Q_FUNC_INFO;
m_jobManager->initialize();
m_scheduler->setAspectManager(this);
m_changeArbiter->initialize(m_jobManager);
}
void QAspectManager::shutdown()
{
qCDebug(Aspects) << Q_FUNC_INFO;
Q_FOREACH (QAbstractAspect *aspect, m_aspects) {
aspect->onCleanup();
m_changeArbiter->unregisterSceneObserver(aspect);
}
qDeleteAll(m_aspects);
}
void QAspectManager::setRootEntity(Qt3D::QEntity *root)
{
qCDebug(Aspects) << Q_FUNC_INFO;
if (root == m_root)
return;
if (m_root) {
// Allow each aspect chance to cleanup any resources from this scene
Q_FOREACH (QAbstractAspect *aspect, m_aspects) {
aspect->onCleanup();
}
}
m_root = root;
if (m_root) {
Q_FOREACH (QAbstractAspect *aspect, m_aspects)
aspect->registerAspect(m_root);
m_runMainLoop.fetchAndStoreOrdered(1);
}
}
// Should be called after aspects are registered
void QAspectManager::setData(const QVariantMap &data)
{
qCDebug(Aspects) << Q_FUNC_INFO;
m_data = data;
Q_FOREACH (QAbstractAspect *aspect, m_aspects)
aspect->onInitialize(m_data);
}
/*!
* Registers a new \a aspect.
*/
void QAspectManager::registerAspect(QAbstractAspect *aspect)
{
qCDebug(Aspects) << "Registering aspect";
if (aspect != Q_NULLPTR) {
m_aspects.append(aspect);
QAbstractAspectPrivate::get(aspect)->m_aspectManager = this;
QAbstractAspectPrivate::get(aspect)->m_jobManager = m_jobManager;
QAbstractAspectPrivate::get(aspect)->m_arbiter = m_changeArbiter;
// Register sceneObserver with the QChangeArbiter
m_changeArbiter->registerSceneObserver(aspect);
aspect->onInitialize(m_data);
}
else {
qCWarning(Aspects) << "Failed to register aspect";
}
qCDebug(Aspects) << "Completed registering aspect";
}
QVariantMap QAspectManager::data() const
{
return m_data;
}
void QAspectManager::exec()
{
// Gentlemen, start your engines
QEventLoop eventLoop;
// QElapsedTimer timer;
// timer.start();
// qint64 t(0);
QTickClock tickClock;
tickClock.start();
// Enter the main loop
while (!m_terminated.load())
{
// Process any pending events, waiting for more to arrive if queue is empty
eventLoop.processEvents(QEventLoop::WaitForMoreEvents, 16);
// Only enter main render loop once the renderer and other aspects are initialized
while (m_runMainLoop.load())
{
// Update the clocks (just main clock for now).
// TODO: Add additional clocks
qint64 t = tickClock.waitForNextTick();
// qDebug() << "t =" << t / 1000000;
// const qint64 t1 = timer.nsecsElapsed();
// const qint64 dt = t1 - t;
// t = t1;
// qDebug() << "dt =" << dt;
// For each Aspect
// Ask them to launch set of jobs for the current frame
// Updates matrices, bounding volumes, render bins ...
m_scheduler->update(t);
// Distribute accumulated changes
m_changeArbiter->syncChanges();
// Process any pending events
eventLoop.processEvents();
}
}
}
void QAspectManager::quit()
{
m_runMainLoop.fetchAndStoreOrdered(0);
m_terminated.fetchAndStoreOrdered(1);
}
const QList<QAbstractAspect *> &QAspectManager::aspects() const
{
return m_aspects;
}
QAbstractAspectJobManager *QAspectManager::jobManager() const
{
return m_jobManager;
}
QChangeArbiter *QAspectManager::changeArbiter() const
{
return m_changeArbiter;
}
QServiceLocator *QAspectManager::serviceLocator() const
{
return m_serviceLocator.data();
}
} // namespace Qt3D
QT_END_NAMESPACE
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