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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 "loadscenejob_p.h"
#include <private/nodemanagers_p.h>
#include <private/scenemanager_p.h>
#include <QCoreApplication>
#include <Qt3DCore/qentity.h>
#include <Qt3DCore/private/qaspectmanager_p.h>
#include <Qt3DCore/private/qurlhelper_p.h>
#include <Qt3DRender/private/job_common_p.h>
#include <Qt3DRender/private/qsceneimporter_p.h>
#include <Qt3DRender/qsceneloader.h>
#include <Qt3DRender/private/qsceneloader_p.h>
#include <Qt3DRender/private/renderlogging_p.h>
#include <QFileInfo>
#include <QMimeDatabase>
QT_BEGIN_NAMESPACE
namespace Qt3DRender {
namespace Render {
LoadSceneJob::LoadSceneJob(const QUrl &source, Qt3DCore::QNodeId sceneComponent)
: QAspectJob(*new LoadSceneJobPrivate(this))
, m_source(source)
, m_sceneComponent(sceneComponent)
, m_managers(nullptr)
{
SET_JOB_RUN_STAT_TYPE(this, JobTypes::LoadScene, 0)
}
void LoadSceneJob::setData(const QByteArray &data)
{
m_data = data;
}
NodeManagers *LoadSceneJob::nodeManagers() const
{
return m_managers;
}
QList<QSceneImporter *> LoadSceneJob::sceneImporters() const
{
return m_sceneImporters;
}
QUrl LoadSceneJob::source() const
{
return m_source;
}
Qt3DCore::QNodeId LoadSceneJob::sceneComponentId() const
{
return m_sceneComponent;
}
void LoadSceneJob::run()
{
// Iterate scene IO handlers until we find one that can handle this file type
Qt3DCore::QEntity *sceneSubTree = nullptr;
Scene *scene = m_managers->sceneManager()->lookupResource(m_sceneComponent);
Q_ASSERT(scene);
// Reset status
QSceneLoader::Status finalStatus = QSceneLoader::None;
// Perform the loading only if the source wasn't explicitly set to empty
if (!m_source.isEmpty()) {
finalStatus = QSceneLoader::Error;
if (m_data.isEmpty()) {
const QString path = Qt3DCore::QUrlHelper::urlToLocalFileOrQrc(m_source);
const QFileInfo finfo(path);
qCDebug(SceneLoaders) << Q_FUNC_INFO << "Attempting to load" << finfo.filePath();
if (finfo.exists()) {
const QStringList extensions(finfo.suffix());
sceneSubTree = tryLoadScene(finalStatus,
extensions,
[this] (QSceneImporter *importer) {
importer->setSource(m_source);
});
} else {
qCWarning(SceneLoaders) << Q_FUNC_INFO << finfo.filePath() << "doesn't exist";
}
} else {
QStringList extensions;
QMimeDatabase db;
const QMimeType mtype = db.mimeTypeForData(m_data);
if (mtype.isValid())
extensions = mtype.suffixes();
else
qCWarning(SceneLoaders) << Q_FUNC_INFO << "Invalid mime type" << mtype;
const QString basePath = m_source.adjusted(QUrl::RemoveFilename).toString();
sceneSubTree = tryLoadScene(finalStatus,
extensions,
[this, basePath] (QSceneImporter *importer) {
importer->setData(m_data, basePath);
});
}
}
Q_D(LoadSceneJob);
d->m_sceneSubtree = sceneSubTree;
d->m_status = finalStatus;
if (d->m_sceneSubtree) {
// Move scene sub tree to the application thread so that it can be grafted in.
const auto appThread = QCoreApplication::instance()->thread();
d->m_sceneSubtree->moveToThread(appThread);
}
}
Qt3DCore::QEntity *LoadSceneJob::tryLoadScene(QSceneLoader::Status &finalStatus,
const QStringList &extensions,
const std::function<void (QSceneImporter *)> &importerSetupFunc)
{
Qt3DCore::QEntity *sceneSubTree = nullptr;
bool foundSuitableLoggerPlugin = false;
for (QSceneImporter *sceneImporter : qAsConst(m_sceneImporters)) {
if (!sceneImporter->areFileTypesSupported(extensions))
continue;
foundSuitableLoggerPlugin = true;
// Set source file or data on importer
importerSetupFunc(sceneImporter);
// File type is supported, try to load it
sceneSubTree = sceneImporter->scene();
if (sceneSubTree != nullptr) {
// Successfully built a subtree
finalStatus = QSceneLoader::Ready;
break;
}
qCWarning(SceneLoaders) << Q_FUNC_INFO << "Failed to import" << m_source << "with errors" << sceneImporter->errors();
}
if (!foundSuitableLoggerPlugin)
qCWarning(SceneLoaders) << Q_FUNC_INFO << "Found no suitable importer plugin for" << m_source;
return sceneSubTree;
}
void LoadSceneJobPrivate::postFrame(Qt3DCore::QAspectManager *manager)
{
Q_Q(LoadSceneJob);
QSceneLoader *node =
qobject_cast<QSceneLoader *>(manager->lookupNode(q->sceneComponentId()));
if (!node)
return;
Qt3DRender::QSceneLoaderPrivate *dNode =
static_cast<decltype(dNode)>(Qt3DCore::QNodePrivate::get(node));
// If the sceneSubTree is null it will trigger the frontend to unload
// any subtree it may hold
// Set clone of sceneTree in sceneComponent. This will move the sceneSubTree
// to the QCoreApplication thread which is where the frontend object tree lives.
dNode->setSceneRoot(m_sceneSubtree);
// Note: the status is set after the subtree so that bindinds depending on the status
// in the frontend will be consistent
dNode->setStatus(m_status);
}
} // namespace Render
} // namespace Qt3DRender
QT_END_NAMESPACE
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