diff options
Diffstat (limited to 'src/render/geometry/qmesh.cpp')
| -rw-r--r-- | src/render/geometry/qmesh.cpp | 190 |
1 files changed, 157 insertions, 33 deletions
diff --git a/src/render/geometry/qmesh.cpp b/src/render/geometry/qmesh.cpp index 2d9bb54b4..40a4c2f52 100644 --- a/src/render/geometry/qmesh.cpp +++ b/src/render/geometry/qmesh.cpp @@ -45,30 +45,63 @@ #include <QFile> #include <QFileInfo> #include <QScopedPointer> -#include <Qt3DRender/private/qgeometryloaderinterface_p.h> +#include <QMimeDatabase> +#include <QMimeType> +#include <QtCore/QBuffer> +#include <Qt3DRender/QRenderAspect> +#include <Qt3DCore/QAspectEngine> #include <Qt3DCore/qpropertyupdatedchange.h> +#include <Qt3DCore/private/qscene_p.h> +#include <Qt3DCore/private/qdownloadhelperservice_p.h> +#include <Qt3DRender/private/qrenderaspect_p.h> +#include <Qt3DRender/private/nodemanagers_p.h> +#include <Qt3DRender/private/qgeometryloaderinterface_p.h> #include <Qt3DRender/private/renderlogging_p.h> #include <Qt3DRender/private/qurlhelper_p.h> #include <Qt3DRender/private/qgeometryloaderfactory_p.h> +#include <Qt3DRender/private/geometryrenderermanager_p.h> + +#include <algorithm> QT_BEGIN_NAMESPACE namespace Qt3DRender { -#ifndef QT_NO_LIBRARY Q_GLOBAL_STATIC_WITH_ARGS(QFactoryLoader, geometryLoader, (QGeometryLoaderFactory_iid, QLatin1String("/geometryloaders"), Qt::CaseInsensitive)) -#endif QMeshPrivate::QMeshPrivate() : QGeometryRendererPrivate() { } +QMeshPrivate *QMeshPrivate::get(QMesh *q) +{ + return q->d_func(); +} + +void QMeshPrivate::setScene(Qt3DCore::QScene *scene) +{ + QGeometryRendererPrivate::setScene(scene); + updateFunctor(); +} + +void QMeshPrivate::updateFunctor() +{ + Q_Q(QMesh); + Qt3DCore::QAspectEngine *engine = m_scene ? m_scene->engine() : nullptr; + q->setGeometryFactory(QGeometryFactoryPtr(new MeshLoaderFunctor(q, engine))); +} + /*! * \qmltype Mesh * \instantiates Qt3DRender::QMesh * \inqmlmodule Qt3D.Render - * \brief A custom mesh. + * \brief A custom mesh loader. + * + * Loads mesh data from external files in a variety of formats. + * + * In Qt3D 5.9, Mesh supports the following formats: Wavefront OBJ, Stanford Triangle Format PLY, STL (STereoLithography). + * QMesh will also support Autodesk FBX files if the SDK is installed and the fbx geometry loader plugin is built and found. */ /*! @@ -80,7 +113,17 @@ QMeshPrivate::QMeshPrivate() /*! * \qmlproperty string Mesh::meshName * - * Holds the name of the mesh. + * Filter indicating which part of the mesh should be loaded. + * + * If meshName is empty (the default), then the entire mesh is loaded. + * + * If meshName is a plain string, then only the sub-mesh matching that name, if present, will be loaded. + * + * If meshName is a regular expression, than all sub-meshes matching the expression will be loaded. + * + * \note Only Wavefront OBJ files support sub-meshes. + * + * \sa QRegularExpression */ /*! @@ -90,7 +133,17 @@ QMeshPrivate::QMeshPrivate() * * \inherits Qt3DRender::QGeometryRenderer * - * \brief A custom mesh. + * \brief A custom mesh loader. + * + * Loads mesh data from external files in a variety of formats. + * Qt3DRender::QMesh loads data into a single mesh. + * + * In Qt3D 5.9, QMesh supports the following formats: Wavefront OBJ, Stanford Triangle Format PLY, STL (STereoLithography). + * QMesh will also support Autodesk FBX files if the SDK is installed and the fbx geometry loader plugin is built and found. + * + * If you wish to load an entire scene made of several objects, you should rather use the Qt3DRender::QSceneLoader instead. + * + * \sa Qt3DRender::QSceneLoader */ /*! @@ -118,8 +171,7 @@ void QMesh::setSource(const QUrl& source) if (d->m_source == source) return; d->m_source = source; - // update the functor - QGeometryRenderer::setGeometryFactory(QGeometryFactoryPtr(new MeshFunctor(d->m_source, d->m_meshName))); + d->updateFunctor(); const bool blocked = blockNotifications(true); emit sourceChanged(source); blockNotifications(blocked); @@ -142,8 +194,7 @@ void QMesh::setMeshName(const QString &meshName) if (d->m_meshName == meshName) return; d->m_meshName = meshName; - // update the functor - QGeometryRenderer::setGeometryFactory(QGeometryFactoryPtr(new MeshFunctor(d->m_source, d->m_meshName))); + d->updateFunctor(); const bool blocked = blockNotifications(true); emit meshNameChanged(meshName); blockNotifications(blocked); @@ -163,49 +214,89 @@ QString QMesh::meshName() const /*! * \internal */ -MeshFunctor::MeshFunctor(const QUrl &sourcePath, const QString& meshName) +MeshLoaderFunctor::MeshLoaderFunctor(QMesh *mesh, Qt3DCore::QAspectEngine *engine, const QByteArray &sourceData) : QGeometryFactory() - , m_sourcePath(sourcePath) - , m_meshName(meshName) + , m_mesh(mesh->id()) + , m_sourcePath(mesh->source()) + , m_meshName(mesh->meshName()) + , m_engine(engine) + , m_sourceData(sourceData) { } /*! * \internal */ -QGeometry *MeshFunctor::operator()() +QGeometry *MeshLoaderFunctor::operator()() { if (m_sourcePath.isEmpty()) { qCWarning(Render::Jobs) << Q_FUNC_INFO << "Mesh is empty, nothing to load"; return nullptr; } - // TO DO: Handle file download if remote url - QString filePath = Qt3DRender::QUrlHelper::urlToLocalFileOrQrc(m_sourcePath); + QStringList ext; + if (!Qt3DCore::QDownloadHelperService::isLocal(m_sourcePath)) { + if (m_sourceData.isEmpty()) { + if (m_mesh) { + auto downloadService = Qt3DCore::QDownloadHelperService::getService(m_engine); + Qt3DCore::QDownloadRequestPtr request(new MeshDownloadRequest(m_mesh, m_sourcePath, m_engine)); + downloadService->submitRequest(request); + } + return nullptr; + } - QFileInfo finfo(filePath); - auto ext = finfo.suffix(); + QMimeDatabase db; + QMimeType mtype = db.mimeTypeForData(m_sourceData); + if (mtype.isValid()) { + ext = mtype.suffixes(); + } + QFileInfo finfo(m_sourcePath.path()); + ext << finfo.suffix(); + ext.removeAll(QLatin1String("")); + if (!ext.contains(QLatin1String("obj"))) + ext << QLatin1String("obj"); + } else { + QString filePath = Qt3DRender::QUrlHelper::urlToLocalFileOrQrc(m_sourcePath); + QFileInfo finfo(filePath); + if (finfo.suffix().isEmpty()) + ext << QLatin1String("obj"); + else + ext << finfo.suffix(); + } QScopedPointer<QGeometryLoaderInterface> loader; - - loader.reset(qLoadPlugin<QGeometryLoaderInterface, QGeometryLoaderFactory>(geometryLoader(), ext)); + for (QString e: qAsConst(ext)) { + loader.reset(qLoadPlugin<QGeometryLoaderInterface, QGeometryLoaderFactory>(geometryLoader(), e)); + if (loader) + break; + } if (!loader) { - qCWarning(Render::Jobs, "unsupported format encountered (%s)", qPrintable(ext)); + qCWarning(Render::Jobs, "unsupported format encountered (%s)", qPrintable(ext.join(QLatin1String(", ")))); return nullptr; } - QFile file(filePath); - if (!file.open(QIODevice::ReadOnly)) { - qCDebug(Render::Jobs) << "Could not open file" << filePath << "for reading"; - return nullptr; - } + if (m_sourceData.isEmpty()) { + QString filePath = Qt3DRender::QUrlHelper::urlToLocalFileOrQrc(m_sourcePath); + QFile file(filePath); + if (!file.open(QIODevice::ReadOnly)) { + qCDebug(Render::Jobs) << "Could not open file" << filePath << "for reading"; + return nullptr; + } - qCDebug(Render::Jobs) << Q_FUNC_INFO << "Loading mesh from" << m_sourcePath << " part:" << m_meshName; + if (loader->load(&file, m_meshName)) + return loader->geometry(); + qCWarning(Render::Jobs) << Q_FUNC_INFO << "Mesh loading failure for:" << filePath; + } else { + QT_PREPEND_NAMESPACE(QBuffer) buffer(&m_sourceData); + if (!buffer.open(QIODevice::ReadOnly)) { + return nullptr; + } - if (loader->load(&file, m_meshName)) - return loader->geometry(); + if (loader->load(&buffer, m_meshName)) + return loader->geometry(); - qCWarning(Render::Jobs) << Q_FUNC_INFO << "Mesh loading failure for:" << filePath; + qCWarning(Render::Jobs) << Q_FUNC_INFO << "Mesh loading failure for:" << m_sourcePath; + } return nullptr; } @@ -213,14 +304,47 @@ QGeometry *MeshFunctor::operator()() /*! * \internal */ -bool MeshFunctor::operator ==(const QGeometryFactory &other) const +bool MeshLoaderFunctor::operator ==(const QGeometryFactory &other) const { - const MeshFunctor *otherFunctor = functor_cast<MeshFunctor>(&other); + const MeshLoaderFunctor *otherFunctor = functor_cast<MeshLoaderFunctor>(&other); if (otherFunctor != nullptr) - return (otherFunctor->m_sourcePath == m_sourcePath); + return (otherFunctor->m_sourcePath == m_sourcePath && + otherFunctor->m_sourceData.isEmpty() == m_sourceData.isEmpty() && + otherFunctor->m_engine == m_engine); return false; } +/*! + * \internal + */ +MeshDownloadRequest::MeshDownloadRequest(Qt3DCore::QNodeId mesh, QUrl source, Qt3DCore::QAspectEngine *engine) + : Qt3DCore::QDownloadRequest(source) + , m_mesh(mesh) + , m_engine(engine) +{ + +} + +void MeshDownloadRequest::onCompleted() +{ + if (cancelled() || !succeeded()) + return; + + QRenderAspectPrivate* d_aspect = QRenderAspectPrivate::findPrivate(m_engine); + if (!d_aspect) + return; + + Render::GeometryRenderer *renderer = d_aspect->m_nodeManagers->geometryRendererManager()->lookupResource(m_mesh); + if (!renderer) + return; + + QSharedPointer<MeshLoaderFunctor> functor = qSharedPointerCast<MeshLoaderFunctor>(renderer->geometryFactory()); + functor->m_sourceData = m_data; + + // mark the component as dirty so that the functor runs again in the correct job + d_aspect->m_nodeManagers->geometryRendererManager()->addDirtyGeometryRenderer(m_mesh); +} + } // namespace Qt3DRender QT_END_NAMESPACE |