Mercurial > hg > orthanc-stone
view Framework/Deprecated/Toolbox/OrthancSlicesLoader.cpp @ 872:733c6db3e5a3 am-dev
limiting the size of the cache
author | Alain Mazy <alain@mazy.be> |
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date | Mon, 01 Jul 2019 13:36:51 +0200 |
parents | 4fe4b221a31f |
children | b537002f83a9 2d8ab34c8c91 |
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/** * Stone of Orthanc * Copyright (C) 2012-2016 Sebastien Jodogne, Medical Physics * Department, University Hospital of Liege, Belgium * Copyright (C) 2017-2019 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 "OrthancSlicesLoader.h" #include "../Toolbox/MessagingToolbox.h" #include <Core/Compression/GzipCompressor.h> #include <Core/Endianness.h> #include <Core/Images/Image.h> #include <Core/Images/ImageProcessing.h> #include <Core/Images/JpegReader.h> #include <Core/Images/PngReader.h> #include <Core/Images/PamReader.h> #include <Core/Logging.h> #include <Core/OrthancException.h> #include <Core/Toolbox.h> #include <Plugins/Samples/Common/FullOrthancDataset.h> #include <boost/lexical_cast.hpp> /** * TODO This is a SLOW implementation of base64 decoding, because * "Orthanc::Toolbox::DecodeBase64()" does not work properly with * WASM. UNDERSTAND WHY. * https://stackoverflow.com/a/34571089/881731 **/ static std::string base64_decode(const std::string &in) { std::string out; std::vector<int> T(256,-1); for (int i=0; i<64; i++) T["ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/"[i]] = i; int val=0, valb=-8; for (size_t i = 0; i < in.size(); i++) { unsigned char c = in[i]; if (T[c] == -1) break; val = (val<<6) + T[c]; valb += 6; if (valb>=0) { out.push_back(char((val>>valb)&0xFF)); valb-=8; } } return out; } namespace Deprecated { class OrthancSlicesLoader::Operation : public Orthanc::IDynamicObject { private: Mode mode_; unsigned int frame_; unsigned int sliceIndex_; const Slice* slice_; std::string instanceId_; SliceImageQuality quality_; Operation(Mode mode) : mode_(mode) { } public: Mode GetMode() const { return mode_; } SliceImageQuality GetQuality() const { assert(mode_ == Mode_LoadImage || mode_ == Mode_LoadRawImage); return quality_; } unsigned int GetSliceIndex() const { assert(mode_ == Mode_LoadImage || mode_ == Mode_LoadRawImage); return sliceIndex_; } const Slice& GetSlice() const { assert(mode_ == Mode_LoadImage || mode_ == Mode_LoadRawImage); assert(slice_ != NULL); return *slice_; } unsigned int GetFrame() const { assert(mode_ == Mode_FrameGeometry); return frame_; } const std::string& GetInstanceId() const { assert(mode_ == Mode_FrameGeometry || mode_ == Mode_InstanceGeometry); return instanceId_; } static Operation* DownloadInstanceGeometry(const std::string& instanceId) { std::auto_ptr<Operation> operation(new Operation(Mode_InstanceGeometry)); operation->instanceId_ = instanceId; return operation.release(); } static Operation* DownloadFrameGeometry(const std::string& instanceId, unsigned int frame) { std::auto_ptr<Operation> operation(new Operation(Mode_FrameGeometry)); operation->instanceId_ = instanceId; operation->frame_ = frame; return operation.release(); } static Operation* DownloadSliceImage(unsigned int sliceIndex, const Slice& slice, SliceImageQuality quality) { std::auto_ptr<Operation> tmp(new Operation(Mode_LoadImage)); tmp->sliceIndex_ = sliceIndex; tmp->slice_ = &slice; tmp->quality_ = quality; return tmp.release(); } static Operation* DownloadSliceRawImage(unsigned int sliceIndex, const Slice& slice) { std::auto_ptr<Operation> tmp(new Operation(Mode_LoadRawImage)); tmp->sliceIndex_ = sliceIndex; tmp->slice_ = &slice; tmp->quality_ = SliceImageQuality_InternalRaw; return tmp.release(); } static Operation* DownloadDicomFile(const Slice& slice) { std::auto_ptr<Operation> tmp(new Operation(Mode_LoadDicomFile)); tmp->slice_ = &slice; return tmp.release(); } }; void OrthancSlicesLoader::NotifySliceImageSuccess(const Operation& operation, const Orthanc::ImageAccessor& image) { OrthancSlicesLoader::SliceImageReadyMessage msg (*this, operation.GetSliceIndex(), operation.GetSlice(), image, operation.GetQuality()); BroadcastMessage(msg); } void OrthancSlicesLoader::NotifySliceImageError(const Operation& operation) { OrthancSlicesLoader::SliceImageErrorMessage msg (*this, operation.GetSliceIndex(), operation.GetSlice(), operation.GetQuality()); BroadcastMessage(msg); } void OrthancSlicesLoader::SortAndFinalizeSlices() { bool ok = slices_.Sort(); state_ = State_GeometryReady; if (ok) { LOG(INFO) << "Loaded a series with " << slices_.GetSlicesCount() << " slice(s)"; BroadcastMessage(SliceGeometryReadyMessage(*this)); } else { LOG(ERROR) << "This series is empty"; BroadcastMessage(SliceGeometryErrorMessage(*this)); } } void OrthancSlicesLoader::OnGeometryError(const IWebService::HttpRequestErrorMessage& message) { BroadcastMessage(SliceGeometryErrorMessage(*this)); state_ = State_Error; } void OrthancSlicesLoader::OnSliceImageError(const IWebService::HttpRequestErrorMessage& message) { NotifySliceImageError(dynamic_cast<const Operation&>(message.GetPayload())); state_ = State_Error; } void OrthancSlicesLoader::ParseSeriesGeometry(const OrthancApiClient::JsonResponseReadyMessage& message) { const Json::Value& series = message.GetJson(); Json::Value::Members instances = series.getMemberNames(); slices_.Reserve(instances.size()); for (size_t i = 0; i < instances.size(); i++) { OrthancPlugins::FullOrthancDataset dataset(series[instances[i]]); Orthanc::DicomMap dicom; MessagingToolbox::ConvertDataset(dicom, dataset); unsigned int frames; if (!dicom.ParseUnsignedInteger32(frames, Orthanc::DICOM_TAG_NUMBER_OF_FRAMES)) { frames = 1; } for (unsigned int frame = 0; frame < frames; frame++) { std::auto_ptr<Slice> slice(new Slice); if (slice->ParseOrthancFrame(dicom, instances[i], frame)) { OrthancStone::CoordinateSystem3D geometry = slice->GetGeometry(); slices_.AddSlice(geometry, slice.release()); } else { LOG(WARNING) << "Skipping invalid frame " << frame << " within instance " << instances[i]; } } } SortAndFinalizeSlices(); } void OrthancSlicesLoader::ParseInstanceGeometry(const OrthancApiClient::JsonResponseReadyMessage& message) { const Json::Value& tags = message.GetJson(); const std::string& instanceId = dynamic_cast<const OrthancSlicesLoader::Operation&>(message.GetPayload()).GetInstanceId(); OrthancPlugins::FullOrthancDataset dataset(tags); Orthanc::DicomMap dicom; MessagingToolbox::ConvertDataset(dicom, dataset); unsigned int frames; if (!dicom.ParseUnsignedInteger32(frames, Orthanc::DICOM_TAG_NUMBER_OF_FRAMES)) { frames = 1; } LOG(INFO) << "Instance " << instanceId << " contains " << frames << " frame(s)"; for (unsigned int frame = 0; frame < frames; frame++) { std::auto_ptr<Slice> slice(new Slice); if (slice->ParseOrthancFrame(dicom, instanceId, frame)) { OrthancStone::CoordinateSystem3D geometry = slice->GetGeometry(); slices_.AddSlice(geometry, slice.release()); } else { LOG(WARNING) << "Skipping invalid multi-frame instance " << instanceId; BroadcastMessage(SliceGeometryErrorMessage(*this)); return; } } SortAndFinalizeSlices(); } void OrthancSlicesLoader::ParseFrameGeometry(const OrthancApiClient::JsonResponseReadyMessage& message) { const Json::Value& tags = message.GetJson(); const std::string& instanceId = dynamic_cast<const OrthancSlicesLoader::Operation&>(message.GetPayload()).GetInstanceId(); unsigned int frame = dynamic_cast<const OrthancSlicesLoader::Operation&>(message.GetPayload()).GetFrame(); OrthancPlugins::FullOrthancDataset dataset(tags); state_ = State_GeometryReady; Orthanc::DicomMap dicom; MessagingToolbox::ConvertDataset(dicom, dataset); std::auto_ptr<Slice> slice(new Slice); if (slice->ParseOrthancFrame(dicom, instanceId, frame)) { LOG(INFO) << "Loaded instance geometry " << instanceId; OrthancStone::CoordinateSystem3D geometry = slice->GetGeometry(); slices_.AddSlice(geometry, slice.release()); BroadcastMessage(SliceGeometryReadyMessage(*this)); } else { LOG(WARNING) << "Skipping invalid instance " << instanceId; BroadcastMessage(SliceGeometryErrorMessage(*this)); } } void OrthancSlicesLoader::ParseSliceImagePng(const OrthancApiClient::BinaryResponseReadyMessage& message) { const Operation& operation = dynamic_cast<const OrthancSlicesLoader::Operation&>(message.GetPayload()); std::auto_ptr<Orthanc::ImageAccessor> image; try { image.reset(new Orthanc::PngReader); dynamic_cast<Orthanc::PngReader&>(*image).ReadFromMemory(message.GetAnswer(), message.GetAnswerSize()); } catch (Orthanc::OrthancException&) { NotifySliceImageError(operation); return; } if (image->GetWidth() != operation.GetSlice().GetWidth() || image->GetHeight() != operation.GetSlice().GetHeight()) { NotifySliceImageError(operation); return; } if (operation.GetSlice().GetConverter().GetExpectedPixelFormat() == Orthanc::PixelFormat_SignedGrayscale16) { if (image->GetFormat() == Orthanc::PixelFormat_Grayscale16) { image->SetFormat(Orthanc::PixelFormat_SignedGrayscale16); } else { NotifySliceImageError(operation); return; } } NotifySliceImageSuccess(operation, *image); } void OrthancSlicesLoader::ParseSliceImagePam(const OrthancApiClient::BinaryResponseReadyMessage& message) { const Operation& operation = dynamic_cast<const OrthancSlicesLoader::Operation&>(message.GetPayload()); std::auto_ptr<Orthanc::ImageAccessor> image; try { image.reset(new Orthanc::PamReader); dynamic_cast<Orthanc::PamReader&>(*image).ReadFromMemory(message.GetAnswer(), message.GetAnswerSize()); } catch (Orthanc::OrthancException&) { NotifySliceImageError(operation); return; } if (image->GetWidth() != operation.GetSlice().GetWidth() || image->GetHeight() != operation.GetSlice().GetHeight()) { NotifySliceImageError(operation); return; } if (operation.GetSlice().GetConverter().GetExpectedPixelFormat() == Orthanc::PixelFormat_SignedGrayscale16) { if (image->GetFormat() == Orthanc::PixelFormat_Grayscale16) { image->SetFormat(Orthanc::PixelFormat_SignedGrayscale16); } else { NotifySliceImageError(operation); return; } } NotifySliceImageSuccess(operation, *image); } void OrthancSlicesLoader::ParseSliceImageJpeg(const OrthancApiClient::JsonResponseReadyMessage& message) { const Operation& operation = dynamic_cast<const OrthancSlicesLoader::Operation&>(message.GetPayload()); const Json::Value& encoded = message.GetJson(); if (encoded.type() != Json::objectValue || !encoded.isMember("Orthanc") || encoded["Orthanc"].type() != Json::objectValue) { NotifySliceImageError(operation); return; } const Json::Value& info = encoded["Orthanc"]; if (!info.isMember("PixelData") || !info.isMember("Stretched") || !info.isMember("Compression") || info["Compression"].type() != Json::stringValue || info["PixelData"].type() != Json::stringValue || info["Stretched"].type() != Json::booleanValue || info["Compression"].asString() != "Jpeg") { NotifySliceImageError(operation); return; } bool isSigned = false; bool isStretched = info["Stretched"].asBool(); if (info.isMember("IsSigned")) { if (info["IsSigned"].type() != Json::booleanValue) { NotifySliceImageError(operation); return; } else { isSigned = info["IsSigned"].asBool(); } } std::auto_ptr<Orthanc::ImageAccessor> reader; { std::string jpeg; //Orthanc::Toolbox::DecodeBase64(jpeg, info["PixelData"].asString()); jpeg = base64_decode(info["PixelData"].asString()); try { reader.reset(new Orthanc::JpegReader); dynamic_cast<Orthanc::JpegReader&>(*reader).ReadFromMemory(jpeg); } catch (Orthanc::OrthancException&) { NotifySliceImageError(operation); return; } } Orthanc::PixelFormat expectedFormat = operation.GetSlice().GetConverter().GetExpectedPixelFormat(); if (reader->GetFormat() == Orthanc::PixelFormat_RGB24) // This is a color image { if (expectedFormat != Orthanc::PixelFormat_RGB24) { NotifySliceImageError(operation); return; } if (isSigned || isStretched) { NotifySliceImageError(operation); return; } else { NotifySliceImageSuccess(operation, *reader); return; } } if (reader->GetFormat() != Orthanc::PixelFormat_Grayscale8) { NotifySliceImageError(operation); return; } if (!isStretched) { if (expectedFormat != reader->GetFormat()) { NotifySliceImageError(operation); return; } else { NotifySliceImageSuccess(operation, *reader); return; } } int32_t stretchLow = 0; int32_t stretchHigh = 0; if (!info.isMember("StretchLow") || !info.isMember("StretchHigh") || info["StretchLow"].type() != Json::intValue || info["StretchHigh"].type() != Json::intValue) { NotifySliceImageError(operation); return; } stretchLow = info["StretchLow"].asInt(); stretchHigh = info["StretchHigh"].asInt(); if (stretchLow < -32768 || stretchHigh > 65535 || (stretchLow < 0 && stretchHigh > 32767)) { // This range cannot be represented with a uint16_t or an int16_t NotifySliceImageError(operation); return; } // Decode a grayscale JPEG 8bpp image coming from the Web viewer std::auto_ptr<Orthanc::ImageAccessor> image (new Orthanc::Image(expectedFormat, reader->GetWidth(), reader->GetHeight(), false)); Orthanc::ImageProcessing::Convert(*image, *reader); reader.reset(); float scaling = static_cast<float>(stretchHigh - stretchLow) / 255.0f; if (!OrthancStone::LinearAlgebra::IsCloseToZero(scaling)) { float offset = static_cast<float>(stretchLow) / scaling; Orthanc::ImageProcessing::ShiftScale(*image, offset, scaling, true); } NotifySliceImageSuccess(operation, *image); } class StringImage : public Orthanc::ImageAccessor { private: std::string buffer_; public: StringImage(Orthanc::PixelFormat format, unsigned int width, unsigned int height, std::string& buffer) { if (buffer.size() != Orthanc::GetBytesPerPixel(format) * width * height) { throw Orthanc::OrthancException(Orthanc::ErrorCode_IncompatibleImageFormat); } buffer_.swap(buffer); // The source buffer is now empty void* data = (buffer_.empty() ? NULL : &buffer_[0]); AssignWritable(format, width, height, Orthanc::GetBytesPerPixel(format) * width, data); } }; void OrthancSlicesLoader::ParseSliceRawImage(const OrthancApiClient::BinaryResponseReadyMessage& message) { const Operation& operation = dynamic_cast<const OrthancSlicesLoader::Operation&>(message.GetPayload()); Orthanc::GzipCompressor compressor; std::string raw; compressor.Uncompress(raw, message.GetAnswer(), message.GetAnswerSize()); const Orthanc::DicomImageInformation& info = operation.GetSlice().GetImageInformation(); if (info.GetBitsAllocated() == 32 && info.GetBitsStored() == 32 && info.GetHighBit() == 31 && info.GetChannelCount() == 1 && !info.IsSigned() && info.GetPhotometricInterpretation() == Orthanc::PhotometricInterpretation_Monochrome2 && raw.size() == info.GetWidth() * info.GetHeight() * 4) { // This is the case of RT-DOSE (uint32_t values) std::auto_ptr<Orthanc::ImageAccessor> image (new StringImage(Orthanc::PixelFormat_Grayscale32, info.GetWidth(), info.GetHeight(), raw)); // TODO - Only for big endian for (unsigned int y = 0; y < image->GetHeight(); y++) { uint32_t *p = reinterpret_cast<uint32_t*>(image->GetRow(y)); for (unsigned int x = 0; x < image->GetWidth(); x++, p++) { *p = le32toh(*p); } } NotifySliceImageSuccess(operation, *image); } else if (info.GetBitsAllocated() == 16 && info.GetBitsStored() == 16 && info.GetHighBit() == 15 && info.GetChannelCount() == 1 && !info.IsSigned() && info.GetPhotometricInterpretation() == Orthanc::PhotometricInterpretation_Monochrome2 && raw.size() == info.GetWidth() * info.GetHeight() * 2) { std::auto_ptr<Orthanc::ImageAccessor> image (new StringImage(Orthanc::PixelFormat_Grayscale16, info.GetWidth(), info.GetHeight(), raw)); // TODO - Big endian ? NotifySliceImageSuccess(operation, *image); } else { throw Orthanc::OrthancException(Orthanc::ErrorCode_NotImplemented); } } OrthancSlicesLoader::OrthancSlicesLoader(OrthancStone::MessageBroker& broker, OrthancApiClient& orthanc) : OrthancStone::IObservable(broker), OrthancStone::IObserver(broker), orthanc_(orthanc), state_(State_Initialization) { } void OrthancSlicesLoader::ScheduleLoadSeries(const std::string& seriesId) { if (state_ != State_Initialization) { throw Orthanc::OrthancException(Orthanc::ErrorCode_BadSequenceOfCalls); } else { state_ = State_LoadingGeometry; orthanc_.GetJsonAsync("/series/" + seriesId + "/instances-tags", new OrthancStone::Callable<OrthancSlicesLoader, OrthancApiClient::JsonResponseReadyMessage>(*this, &OrthancSlicesLoader::ParseSeriesGeometry), new OrthancStone::Callable<OrthancSlicesLoader, IWebService::HttpRequestErrorMessage>(*this, &OrthancSlicesLoader::OnGeometryError), NULL); } } void OrthancSlicesLoader::ScheduleLoadInstance(const std::string& instanceId) { if (state_ != State_Initialization) { throw Orthanc::OrthancException(Orthanc::ErrorCode_BadSequenceOfCalls); } else { state_ = State_LoadingGeometry; // Tag "3004-000c" is "Grid Frame Offset Vector", which is // mandatory to read RT DOSE, but is too long to be returned by default orthanc_.GetJsonAsync("/instances/" + instanceId + "/tags?ignore-length=3004-000c", new OrthancStone::Callable<OrthancSlicesLoader, OrthancApiClient::JsonResponseReadyMessage>(*this, &OrthancSlicesLoader::ParseInstanceGeometry), new OrthancStone::Callable<OrthancSlicesLoader, IWebService::HttpRequestErrorMessage>(*this, &OrthancSlicesLoader::OnGeometryError), Operation::DownloadInstanceGeometry(instanceId)); } } void OrthancSlicesLoader::ScheduleLoadFrame(const std::string& instanceId, unsigned int frame) { if (state_ != State_Initialization) { throw Orthanc::OrthancException(Orthanc::ErrorCode_BadSequenceOfCalls); } else { state_ = State_LoadingGeometry; orthanc_.GetJsonAsync("/instances/" + instanceId + "/tags", new OrthancStone::Callable<OrthancSlicesLoader, OrthancApiClient::JsonResponseReadyMessage>(*this, &OrthancSlicesLoader::ParseFrameGeometry), new OrthancStone::Callable<OrthancSlicesLoader, IWebService::HttpRequestErrorMessage>(*this, &OrthancSlicesLoader::OnGeometryError), Operation::DownloadFrameGeometry(instanceId, frame)); } } bool OrthancSlicesLoader::IsGeometryReady() const { return state_ == State_GeometryReady; } size_t OrthancSlicesLoader::GetSlicesCount() const { if (state_ != State_GeometryReady) { throw Orthanc::OrthancException(Orthanc::ErrorCode_BadSequenceOfCalls); } return slices_.GetSlicesCount(); } const Slice& OrthancSlicesLoader::GetSlice(size_t index) const { if (state_ != State_GeometryReady) { throw Orthanc::OrthancException(Orthanc::ErrorCode_BadSequenceOfCalls); } return dynamic_cast<const Slice&>(slices_.GetSlicePayload(index)); } bool OrthancSlicesLoader::LookupSlice(size_t& index, const OrthancStone::CoordinateSystem3D& plane) const { if (state_ != State_GeometryReady) { throw Orthanc::OrthancException(Orthanc::ErrorCode_BadSequenceOfCalls); } double distance; return (slices_.LookupClosestSlice(index, distance, plane) && distance <= GetSlice(index).GetThickness() / 2.0); } void OrthancSlicesLoader::ScheduleSliceImagePng(const Slice& slice, size_t index) { std::string uri = ("/instances/" + slice.GetOrthancInstanceId() + "/frames/" + boost::lexical_cast<std::string>(slice.GetFrame())); switch (slice.GetConverter().GetExpectedPixelFormat()) { case Orthanc::PixelFormat_RGB24: uri += "/preview"; break; case Orthanc::PixelFormat_Grayscale16: uri += "/image-uint16"; break; case Orthanc::PixelFormat_SignedGrayscale16: uri += "/image-int16"; break; default: throw Orthanc::OrthancException(Orthanc::ErrorCode_ParameterOutOfRange); } orthanc_.GetBinaryAsync(uri, "image/png", new OrthancStone::Callable<OrthancSlicesLoader, OrthancApiClient::BinaryResponseReadyMessage> (*this, &OrthancSlicesLoader::ParseSliceImagePng), new OrthancStone::Callable<OrthancSlicesLoader, IWebService::HttpRequestErrorMessage> (*this, &OrthancSlicesLoader::OnSliceImageError), Operation::DownloadSliceImage( static_cast<unsigned int>(index), slice, SliceImageQuality_FullPng)); } void OrthancSlicesLoader::ScheduleSliceImagePam(const Slice& slice, size_t index) { std::string uri = ("/instances/" + slice.GetOrthancInstanceId() + "/frames/" + boost::lexical_cast<std::string>(slice.GetFrame())); switch (slice.GetConverter().GetExpectedPixelFormat()) { case Orthanc::PixelFormat_RGB24: uri += "/preview"; break; case Orthanc::PixelFormat_Grayscale16: uri += "/image-uint16"; break; case Orthanc::PixelFormat_SignedGrayscale16: uri += "/image-int16"; break; default: throw Orthanc::OrthancException(Orthanc::ErrorCode_ParameterOutOfRange); } orthanc_.GetBinaryAsync(uri, "image/x-portable-arbitrarymap", new OrthancStone::Callable<OrthancSlicesLoader, OrthancApiClient::BinaryResponseReadyMessage> (*this, &OrthancSlicesLoader::ParseSliceImagePam), new OrthancStone::Callable<OrthancSlicesLoader, IWebService::HttpRequestErrorMessage> (*this, &OrthancSlicesLoader::OnSliceImageError), Operation::DownloadSliceImage(static_cast<unsigned int>(index), slice, SliceImageQuality_FullPam)); } void OrthancSlicesLoader::ScheduleSliceImageJpeg(const Slice& slice, size_t index, SliceImageQuality quality) { unsigned int value; switch (quality) { case SliceImageQuality_Jpeg50: value = 50; break; case SliceImageQuality_Jpeg90: value = 90; break; case SliceImageQuality_Jpeg95: value = 95; break; default: throw Orthanc::OrthancException(Orthanc::ErrorCode_ParameterOutOfRange); } // This requires the official Web viewer plugin to be installed! std::string uri = ("/web-viewer/instances/jpeg" + boost::lexical_cast<std::string>(value) + "-" + slice.GetOrthancInstanceId() + "_" + boost::lexical_cast<std::string>(slice.GetFrame())); orthanc_.GetJsonAsync(uri, new OrthancStone::Callable<OrthancSlicesLoader, OrthancApiClient::JsonResponseReadyMessage> (*this, &OrthancSlicesLoader::ParseSliceImageJpeg), new OrthancStone::Callable<OrthancSlicesLoader, IWebService::HttpRequestErrorMessage> (*this, &OrthancSlicesLoader::OnSliceImageError), Operation::DownloadSliceImage( static_cast<unsigned int>(index), slice, quality)); } void OrthancSlicesLoader::ScheduleLoadSliceImage(size_t index, SliceImageQuality quality) { if (state_ != State_GeometryReady) { throw Orthanc::OrthancException(Orthanc::ErrorCode_BadSequenceOfCalls); } const Slice& slice = GetSlice(index); if (slice.HasOrthancDecoding()) { switch (quality) { case SliceImageQuality_FullPng: ScheduleSliceImagePng(slice, index); break; case SliceImageQuality_FullPam: ScheduleSliceImagePam(slice, index); break; default: ScheduleSliceImageJpeg(slice, index, quality); } } else { std::string uri = ("/instances/" + slice.GetOrthancInstanceId() + "/frames/" + boost::lexical_cast<std::string>(slice.GetFrame()) + "/raw.gz"); orthanc_.GetBinaryAsync(uri, IWebService::HttpHeaders(), new OrthancStone::Callable<OrthancSlicesLoader, OrthancApiClient::BinaryResponseReadyMessage> (*this, &OrthancSlicesLoader::ParseSliceRawImage), new OrthancStone::Callable<OrthancSlicesLoader, IWebService::HttpRequestErrorMessage> (*this, &OrthancSlicesLoader::OnSliceImageError), Operation::DownloadSliceRawImage( static_cast<unsigned int>(index), slice)); } } }