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| ** Copyright (C) 2014 Klaralvdalens Datakonsult AB (KDAB). |
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| |
| #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 <Qt3DRender/private/job_common_p.h> |
| #include <Qt3DRender/private/qsceneimporter_p.h> |
| #include <Qt3DRender/private/qurlhelper_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 = 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 |
