Mercurial > hg > orthanc-stone
view OrthancStone/Sources/Deprecated/SmartLoader.cpp @ 1527:4c4b267e4004
RtViewerPlugin : similar to the StoneWebPlugin, but for the sole RtViewer sample
author | Benjamin Golinvaux <bgo@osimis.io> |
---|---|
date | Sun, 02 Aug 2020 15:13:58 +0200 |
parents | 244ad1e4e76a |
children |
line wrap: on
line source
/** * Stone of Orthanc * Copyright (C) 2012-2016 Sebastien Jodogne, Medical Physics * Department, University Hospital of Liege, Belgium * Copyright (C) 2017-2020 Osimis S.A., Belgium * * This program is free software: you can redistribute it and/or * modify it under the terms of the GNU Affero General Public License * as published by the Free Software Foundation, either version 3 of * the License, or (at your option) any later version. * * This program is distributed in the hope that it will be useful, but * WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Affero General Public License for more details. * * You should have received a copy of the GNU Affero General Public License * along with this program. If not, see <http://www.gnu.org/licenses/>. **/ #include "SmartLoader.h" #include "../StoneException.h" #include "Layers/DicomSeriesVolumeSlicer.h" #include "Layers/FrameRenderer.h" #include "Widgets/SliceViewerWidget.h" #include <Images/Image.h> #include <Logging.h> namespace Deprecated { enum CachedSliceStatus { CachedSliceStatus_ScheduledToLoad, CachedSliceStatus_GeometryLoaded, CachedSliceStatus_ImageLoaded }; class SmartLoader::CachedSlice : public IVolumeSlicer { public: class RendererFactory : public LayerReadyMessage::IRendererFactory { private: const CachedSlice& that_; public: RendererFactory(const CachedSlice& that) : that_(that) { } virtual ILayerRenderer* CreateRenderer() const { bool isFull = (that_.effectiveQuality_ == SliceImageQuality_FullPng || that_.effectiveQuality_ == SliceImageQuality_FullPam); return FrameRenderer::CreateRenderer(*that_.image_, *that_.slice_, isFull); } }; unsigned int sliceIndex_; std::unique_ptr<Slice> slice_; boost::shared_ptr<Orthanc::ImageAccessor> image_; SliceImageQuality effectiveQuality_; CachedSliceStatus status_; public: virtual ~CachedSlice() { } virtual bool GetExtent(std::vector<OrthancStone::Vector>& points, const OrthancStone::CoordinateSystem3D& viewportSlice) { // TODO: viewportSlice is not used !!!! slice_->GetExtent(points); return true; } virtual void ScheduleLayerCreation(const OrthancStone::CoordinateSystem3D& viewportSlice) { // TODO: viewportSlice is not used !!!! // it has already been loaded -> trigger the "layer ready" message immediately otherwise, do nothing now. The LayerReady will be triggered // once the VolumeSlicer is ready if (status_ == CachedSliceStatus_ImageLoaded) { LOG(WARNING) << "ScheduleLayerCreation for CachedSlice (image is loaded): " << slice_->GetOrthancInstanceId(); RendererFactory factory(*this); BroadcastMessage(IVolumeSlicer::LayerReadyMessage(*this, factory, slice_->GetGeometry())); } else { LOG(WARNING) << "ScheduleLayerCreation for CachedSlice (image is not loaded yet): " << slice_->GetOrthancInstanceId(); } } CachedSlice* Clone() const { CachedSlice* output = new CachedSlice; output->sliceIndex_ = sliceIndex_; output->slice_.reset(slice_->Clone()); output->image_ = image_; output->effectiveQuality_ = effectiveQuality_; output->status_ = status_; return output; } }; SmartLoader::SmartLoader(boost::shared_ptr<OrthancApiClient> orthancApiClient) : imageQuality_(SliceImageQuality_FullPam), orthancApiClient_(orthancApiClient) { } void SmartLoader::SetFrameInWidget(SliceViewerWidget& sliceViewer, size_t layerIndex, const std::string& instanceId, unsigned int frame) { // TODO: check if this frame has already been loaded or is already being loaded. // - if already loaded: create a "clone" that will emit the GeometryReady/ImageReady messages "immediately" // (it can not be immediate because Observers needs to register first and this is done after this method returns) // - if currently loading, we need to return an object that will observe the existing VolumeSlicer and forward // the messages to its observables // in both cases, we must be carefull about objects lifecycle !!! boost::shared_ptr<IVolumeSlicer> layerSource; std::string sliceKeyId = instanceId + ":" + boost::lexical_cast<std::string>(frame); SmartLoader::CachedSlice* cachedSlice = NULL; if (cachedSlices_.find(sliceKeyId) != cachedSlices_.end()) // && cachedSlices_[sliceKeyId]->status_ == CachedSliceStatus_Loaded) { layerSource.reset(cachedSlices_[sliceKeyId]->Clone()); cachedSlice = dynamic_cast<SmartLoader::CachedSlice*>(layerSource.get()); } else { layerSource.reset(new DicomSeriesVolumeSlicer); dynamic_cast<DicomSeriesVolumeSlicer*>(layerSource.get())->Connect(orthancApiClient_); dynamic_cast<DicomSeriesVolumeSlicer*>(layerSource.get())->SetImageQuality(imageQuality_); Register<IVolumeSlicer::GeometryReadyMessage>(*layerSource, &SmartLoader::OnLayerGeometryReady); Register<DicomSeriesVolumeSlicer::FrameReadyMessage>(*layerSource, &SmartLoader::OnFrameReady); Register<IVolumeSlicer::LayerReadyMessage>(*layerSource, &SmartLoader::OnLayerReady); dynamic_cast<DicomSeriesVolumeSlicer*>(layerSource.get())->LoadFrame(instanceId, frame); } // make sure that the widget registers the events before we trigger them if (sliceViewer.GetLayerCount() == layerIndex) { sliceViewer.AddLayer(layerSource); } else if (sliceViewer.GetLayerCount() > layerIndex) { sliceViewer.ReplaceLayer(layerIndex, layerSource); } else { throw OrthancStone::StoneException(OrthancStone::ErrorCode_CanOnlyAddOneLayerAtATime); } if (cachedSlice != NULL) { BroadcastMessage(IVolumeSlicer::GeometryReadyMessage(*cachedSlice)); } } void SmartLoader::PreloadSlice(const std::string instanceId, unsigned int frame) { // TODO: reactivate -> need to be able to ScheduleLayerLoading in IVolumeSlicer without calling ScheduleLayerCreation return; // TODO: check if it is already in the cache // create the slice in the cache with "empty" data boost::shared_ptr<CachedSlice> cachedSlice(new CachedSlice); cachedSlice->slice_.reset(new Slice(instanceId, frame)); cachedSlice->status_ = CachedSliceStatus_ScheduledToLoad; std::string sliceKeyId = instanceId + ":" + boost::lexical_cast<std::string>(frame); LOG(WARNING) << "Will preload: " << sliceKeyId; cachedSlices_[sliceKeyId] = boost::shared_ptr<CachedSlice>(cachedSlice); std::unique_ptr<IVolumeSlicer> layerSource(new DicomSeriesVolumeSlicer); dynamic_cast<DicomSeriesVolumeSlicer*>(layerSource.get())->Connect(orthancApiClient_); dynamic_cast<DicomSeriesVolumeSlicer*>(layerSource.get())->SetImageQuality(imageQuality_); Register<IVolumeSlicer::GeometryReadyMessage>(*layerSource, &SmartLoader::OnLayerGeometryReady); Register<DicomSeriesVolumeSlicer::FrameReadyMessage>(*layerSource, &SmartLoader::OnFrameReady); Register<IVolumeSlicer::LayerReadyMessage>(*layerSource, &SmartLoader::OnLayerReady); dynamic_cast<DicomSeriesVolumeSlicer*>(layerSource.get())->LoadFrame(instanceId, frame); // keep a ref to the VolumeSlicer until the slice is fully loaded and saved to cache preloadingInstances_[sliceKeyId] = boost::shared_ptr<IVolumeSlicer>(layerSource.release()); } // void PreloadStudy(const std::string studyId) // { // /* TODO */ // } // void PreloadSeries(const std::string seriesId) // { // /* TODO */ // } void SmartLoader::OnLayerGeometryReady(const IVolumeSlicer::GeometryReadyMessage& message) { const DicomSeriesVolumeSlicer& source = dynamic_cast<const DicomSeriesVolumeSlicer&>(message.GetOrigin()); // save/replace the slice in cache const Slice& slice = source.GetSlice(0); // TODO handle GetSliceCount() std::string sliceKeyId = (slice.GetOrthancInstanceId() + ":" + boost::lexical_cast<std::string>(slice.GetFrame())); LOG(WARNING) << "Geometry ready: " << sliceKeyId; boost::shared_ptr<CachedSlice> cachedSlice(new CachedSlice); cachedSlice->slice_.reset(slice.Clone()); cachedSlice->effectiveQuality_ = source.GetImageQuality(); cachedSlice->status_ = CachedSliceStatus_GeometryLoaded; cachedSlices_[sliceKeyId] = boost::shared_ptr<CachedSlice>(cachedSlice); // re-emit original Layer message to observers BroadcastMessage(message); } void SmartLoader::OnFrameReady(const DicomSeriesVolumeSlicer::FrameReadyMessage& message) { // save/replace the slice in cache const Slice& slice = message.GetSlice(); std::string sliceKeyId = (slice.GetOrthancInstanceId() + ":" + boost::lexical_cast<std::string>(slice.GetFrame())); LOG(WARNING) << "Image ready: " << sliceKeyId; boost::shared_ptr<CachedSlice> cachedSlice(new CachedSlice); cachedSlice->image_.reset(Orthanc::Image::Clone(message.GetFrame())); cachedSlice->effectiveQuality_ = message.GetImageQuality(); cachedSlice->slice_.reset(message.GetSlice().Clone()); cachedSlice->status_ = CachedSliceStatus_ImageLoaded; cachedSlices_[sliceKeyId] = cachedSlice; // re-emit original Layer message to observers BroadcastMessage(message); } void SmartLoader::OnLayerReady(const IVolumeSlicer::LayerReadyMessage& message) { const DicomSeriesVolumeSlicer& source = dynamic_cast<const DicomSeriesVolumeSlicer&>(message.GetOrigin()); const Slice& slice = source.GetSlice(0); // TODO handle GetSliceCount() ? std::string sliceKeyId = (slice.GetOrthancInstanceId() + ":" + boost::lexical_cast<std::string>(slice.GetFrame())); LOG(WARNING) << "Layer ready: " << sliceKeyId; // remove the slice from the preloading slices now that it has been fully loaded and it is referenced in the cache if (preloadingInstances_.find(sliceKeyId) != preloadingInstances_.end()) { preloadingInstances_.erase(sliceKeyId); } // re-emit original Layer message to observers BroadcastMessage(message); } }