Mercurial > hg > orthanc-stone
annotate Framework/Toolbox/OrthancSlicesLoader.cpp @ 117:42c05a3baee3 wasm
loading multi-frame instances as 3D volumes
| author | Sebastien Jodogne <s.jodogne@gmail.com> |
|---|---|
| date | Thu, 28 Sep 2017 16:55:51 +0200 |
| parents | 2eca030792aa |
| children | a4d0b6c82b29 |
| rev | line source |
|---|---|
| 73 | 1 /** |
| 2 * Stone of Orthanc | |
| 3 * Copyright (C) 2012-2016 Sebastien Jodogne, Medical Physics | |
| 4 * Department, University Hospital of Liege, Belgium | |
| 5 * Copyright (C) 2017 Osimis, Belgium | |
| 6 * | |
| 7 * This program is free software: you can redistribute it and/or | |
| 8 * modify it under the terms of the GNU Affero General Public License | |
| 9 * as published by the Free Software Foundation, either version 3 of | |
| 10 * the License, or (at your option) any later version. | |
| 11 * | |
| 12 * This program is distributed in the hope that it will be useful, but | |
| 13 * WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
| 15 * Affero General Public License for more details. | |
| 16 * | |
| 17 * You should have received a copy of the GNU Affero General Public License | |
| 18 * along with this program. If not, see <http://www.gnu.org/licenses/>. | |
| 19 **/ | |
| 20 | |
| 21 | |
| 22 #include "OrthancSlicesLoader.h" | |
| 23 | |
| 24 #include "MessagingToolbox.h" | |
| 25 | |
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26 #include <Core/Images/Image.h> |
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27 #include <Core/Images/ImageProcessing.h> |
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28 #include <Core/Images/JpegReader.h> |
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29 #include <Core/Images/PngReader.h> |
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30 #include <Core/Compression/GzipCompressor.h> |
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31 #include <Core/Logging.h> |
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32 #include <Core/OrthancException.h> |
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33 #include <Core/Toolbox.h> |
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34 #include <Plugins/Samples/Common/DicomDatasetReader.h> |
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35 #include <Plugins/Samples/Common/FullOrthancDataset.h> |
| 73 | 36 |
| 37 #include <boost/lexical_cast.hpp> | |
| 38 | |
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39 |
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40 |
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41 /** |
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42 * TODO This is a SLOW implementation of base64 decoding, because |
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43 * "Orthanc::Toolbox::DecodeBase64()" does not work properly with |
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44 * WASM. UNDERSTAND WHY. |
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45 * https://stackoverflow.com/a/34571089/881731 |
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46 **/ |
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47 static std::string base64_decode(const std::string &in) |
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48 { |
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49 std::string out; |
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50 |
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51 std::vector<int> T(256,-1); |
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52 for (int i=0; i<64; i++) T["ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/"[i]] = i; |
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53 |
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54 int val=0, valb=-8; |
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55 for (unsigned char c : in) { |
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56 if (T[c] == -1) break; |
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57 val = (val<<6) + T[c]; |
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58 valb += 6; |
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59 if (valb>=0) { |
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60 out.push_back(char((val>>valb)&0xFF)); |
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61 valb-=8; |
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62 } |
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63 } |
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64 return out; |
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65 } |
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66 |
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67 |
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68 |
| 73 | 69 namespace OrthancStone |
| 70 { | |
| 71 class OrthancSlicesLoader::Operation : public Orthanc::IDynamicObject | |
| 72 { | |
| 73 private: | |
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74 Mode mode_; |
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75 unsigned int frame_; |
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76 unsigned int sliceIndex_; |
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77 const Slice* slice_; |
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78 std::string instanceId_; |
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79 SliceImageQuality quality_; |
| 73 | 80 |
| 81 Operation(Mode mode) : | |
| 82 mode_(mode) | |
| 83 { | |
| 84 } | |
| 85 | |
| 86 public: | |
| 87 Mode GetMode() const | |
| 88 { | |
| 89 return mode_; | |
| 90 } | |
| 91 | |
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92 SliceImageQuality GetQuality() const |
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93 { |
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94 assert(mode_ == Mode_LoadImage); |
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95 return quality_; |
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96 } |
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97 |
| 73 | 98 unsigned int GetSliceIndex() const |
| 99 { | |
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100 assert(mode_ == Mode_LoadImage || |
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101 mode_ == Mode_LoadRawImage); |
| 73 | 102 return sliceIndex_; |
| 103 } | |
| 104 | |
| 105 const Slice& GetSlice() const | |
| 106 { | |
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107 assert(mode_ == Mode_LoadImage || |
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108 mode_ == Mode_LoadRawImage); |
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109 assert(slice_ != NULL); |
| 73 | 110 return *slice_; |
| 111 } | |
| 112 | |
| 113 unsigned int GetFrame() const | |
| 114 { | |
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115 assert(mode_ == Mode_FrameGeometry); |
| 73 | 116 return frame_; |
| 117 } | |
| 118 | |
| 119 const std::string& GetInstanceId() const | |
| 120 { | |
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121 assert(mode_ == Mode_FrameGeometry || |
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122 mode_ == Mode_InstanceGeometry); |
| 73 | 123 return instanceId_; |
| 124 } | |
| 125 | |
| 126 static Operation* DownloadSeriesGeometry() | |
| 127 { | |
| 128 return new Operation(Mode_SeriesGeometry); | |
| 129 } | |
| 130 | |
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131 static Operation* DownloadInstanceGeometry(const std::string& instanceId) |
| 73 | 132 { |
| 133 std::auto_ptr<Operation> operation(new Operation(Mode_InstanceGeometry)); | |
| 134 operation->instanceId_ = instanceId; | |
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135 return operation.release(); |
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136 } |
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137 |
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138 static Operation* DownloadFrameGeometry(const std::string& instanceId, |
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139 unsigned int frame) |
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140 { |
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141 std::auto_ptr<Operation> operation(new Operation(Mode_FrameGeometry)); |
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142 operation->instanceId_ = instanceId; |
| 73 | 143 operation->frame_ = frame; |
| 144 return operation.release(); | |
| 145 } | |
| 146 | |
| 147 static Operation* DownloadSliceImage(unsigned int sliceIndex, | |
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148 const Slice& slice, |
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149 SliceImageQuality quality) |
| 73 | 150 { |
| 151 std::auto_ptr<Operation> tmp(new Operation(Mode_LoadImage)); | |
| 152 tmp->sliceIndex_ = sliceIndex; | |
| 153 tmp->slice_ = &slice; | |
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154 tmp->quality_ = quality; |
| 73 | 155 return tmp.release(); |
| 156 } | |
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157 |
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158 static Operation* DownloadSliceRawImage(unsigned int sliceIndex, |
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159 const Slice& slice) |
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160 { |
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161 std::auto_ptr<Operation> tmp(new Operation(Mode_LoadRawImage)); |
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162 tmp->sliceIndex_ = sliceIndex; |
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163 tmp->slice_ = &slice; |
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164 return tmp.release(); |
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165 } |
| 73 | 166 }; |
| 167 | |
| 168 | |
| 169 class OrthancSlicesLoader::WebCallback : public IWebService::ICallback | |
| 170 { | |
| 171 private: | |
| 172 OrthancSlicesLoader& that_; | |
| 173 | |
| 174 public: | |
| 175 WebCallback(OrthancSlicesLoader& that) : | |
| 176 that_(that) | |
| 177 { | |
| 178 } | |
| 179 | |
| 180 virtual void NotifySuccess(const std::string& uri, | |
| 181 const void* answer, | |
| 182 size_t answerSize, | |
| 183 Orthanc::IDynamicObject* payload) | |
| 184 { | |
| 185 std::auto_ptr<Operation> operation(dynamic_cast<Operation*>(payload)); | |
| 186 | |
| 187 switch (operation->GetMode()) | |
| 188 { | |
| 189 case Mode_SeriesGeometry: | |
| 190 that_.ParseSeriesGeometry(answer, answerSize); | |
| 191 break; | |
| 192 | |
| 193 case Mode_InstanceGeometry: | |
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194 that_.ParseInstanceGeometry(operation->GetInstanceId(), answer, answerSize); |
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195 break; |
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196 |
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197 case Mode_FrameGeometry: |
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198 that_.ParseFrameGeometry(operation->GetInstanceId(), |
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199 operation->GetFrame(), answer, answerSize); |
| 73 | 200 break; |
| 201 | |
| 202 case Mode_LoadImage: | |
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203 switch (operation->GetQuality()) |
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204 { |
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205 case SliceImageQuality_Full: |
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206 that_.ParseSliceImagePng(*operation, answer, answerSize); |
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207 break; |
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208 |
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209 case SliceImageQuality_Jpeg50: |
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210 case SliceImageQuality_Jpeg90: |
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211 case SliceImageQuality_Jpeg95: |
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212 that_.ParseSliceImageJpeg(*operation, answer, answerSize); |
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213 break; |
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214 |
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215 default: |
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216 throw Orthanc::OrthancException(Orthanc::ErrorCode_InternalError); |
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217 } |
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218 |
| 73 | 219 break; |
| 220 | |
|
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221 case Mode_LoadRawImage: |
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222 that_.ParseSliceRawImage(*operation, answer, answerSize); |
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223 break; |
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224 |
| 73 | 225 default: |
| 226 throw Orthanc::OrthancException(Orthanc::ErrorCode_InternalError); | |
| 227 } | |
| 228 } | |
| 229 | |
| 230 virtual void NotifyError(const std::string& uri, | |
| 231 Orthanc::IDynamicObject* payload) | |
| 232 { | |
| 233 std::auto_ptr<Operation> operation(dynamic_cast<Operation*>(payload)); | |
| 234 LOG(ERROR) << "Cannot download " << uri; | |
| 235 | |
| 236 switch (operation->GetMode()) | |
| 237 { | |
|
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238 case Mode_FrameGeometry: |
| 73 | 239 case Mode_SeriesGeometry: |
| 240 that_.userCallback_.NotifyGeometryError(that_); | |
| 241 that_.state_ = State_Error; | |
| 242 break; | |
| 243 | |
| 244 case Mode_LoadImage: | |
| 245 that_.userCallback_.NotifySliceImageError(that_, operation->GetSliceIndex(), | |
|
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246 operation->GetSlice(), |
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247 operation->GetQuality()); |
| 73 | 248 break; |
| 249 | |
| 250 default: | |
| 251 throw Orthanc::OrthancException(Orthanc::ErrorCode_InternalError); | |
| 252 } | |
| 253 } | |
| 254 }; | |
| 255 | |
|
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256 |
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257 |
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258 void OrthancSlicesLoader::NotifySliceImageSuccess(const Operation& operation, |
| 99 | 259 std::auto_ptr<Orthanc::ImageAccessor>& image) const |
|
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260 { |
| 99 | 261 if (image.get() == NULL) |
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262 { |
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263 throw Orthanc::OrthancException(Orthanc::ErrorCode_NullPointer); |
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264 } |
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265 else |
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266 { |
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267 userCallback_.NotifySliceImageReady |
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268 (*this, operation.GetSliceIndex(), operation.GetSlice(), image, operation.GetQuality()); |
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269 } |
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270 } |
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271 |
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272 |
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273 void OrthancSlicesLoader::NotifySliceImageError(const Operation& operation) const |
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274 { |
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275 userCallback_.NotifySliceImageError |
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276 (*this, operation.GetSliceIndex(), operation.GetSlice(), operation.GetQuality()); |
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277 } |
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278 |
| 73 | 279 |
| 280 void OrthancSlicesLoader::ParseSeriesGeometry(const void* answer, | |
| 281 size_t size) | |
| 282 { | |
| 283 Json::Value series; | |
| 284 if (!MessagingToolbox::ParseJson(series, answer, size) || | |
| 285 series.type() != Json::objectValue) | |
| 286 { | |
| 287 userCallback_.NotifyGeometryError(*this); | |
| 288 return; | |
| 289 } | |
| 290 | |
| 291 Json::Value::Members instances = series.getMemberNames(); | |
| 292 | |
| 293 slices_.Reserve(instances.size()); | |
| 294 | |
| 295 for (size_t i = 0; i < instances.size(); i++) | |
| 296 { | |
| 297 OrthancPlugins::FullOrthancDataset dataset(series[instances[i]]); | |
|
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298 OrthancPlugins::DicomDatasetReader reader(dataset); |
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299 |
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300 unsigned int frames; |
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301 if (!reader.GetUnsignedIntegerValue(frames, OrthancPlugins::DICOM_TAG_NUMBER_OF_FRAMES)) |
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302 { |
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303 frames = 1; |
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304 } |
| 73 | 305 |
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306 for (unsigned int frame = 0; frame < frames; frame++) |
| 73 | 307 { |
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308 Slice slice; |
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309 if (slice.ParseOrthancFrame(dataset, instances[i], frame)) |
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310 { |
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311 slices_.AddSlice(slice); |
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312 } |
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313 else |
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314 { |
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315 LOG(WARNING) << "Skipping invalid frame " << frame << " within instance " << instances[i]; |
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316 } |
| 73 | 317 } |
| 318 } | |
| 319 | |
| 320 bool ok = false; | |
| 321 | |
| 322 if (slices_.GetSliceCount() > 0) | |
| 323 { | |
| 324 Vector normal; | |
| 325 if (slices_.SelectNormal(normal)) | |
| 326 { | |
| 327 slices_.FilterNormal(normal); | |
| 328 slices_.SetNormal(normal); | |
| 329 slices_.Sort(); | |
| 330 ok = true; | |
| 331 } | |
| 332 } | |
| 333 | |
| 334 state_ = State_GeometryReady; | |
| 335 | |
| 336 if (ok) | |
| 337 { | |
| 338 LOG(INFO) << "Loaded a series with " << slices_.GetSliceCount() << " slice(s)"; | |
| 339 userCallback_.NotifyGeometryReady(*this); | |
| 340 } | |
| 341 else | |
| 342 { | |
| 343 LOG(ERROR) << "This series is empty"; | |
| 344 userCallback_.NotifyGeometryError(*this); | |
| 345 } | |
| 346 } | |
| 347 | |
| 348 | |
| 349 void OrthancSlicesLoader::ParseInstanceGeometry(const std::string& instanceId, | |
| 350 const void* answer, | |
| 351 size_t size) | |
| 352 { | |
| 353 Json::Value tags; | |
| 354 if (!MessagingToolbox::ParseJson(tags, answer, size) || | |
| 355 tags.type() != Json::objectValue) | |
| 356 { | |
| 357 userCallback_.NotifyGeometryError(*this); | |
| 358 return; | |
| 359 } | |
| 360 | |
| 361 OrthancPlugins::FullOrthancDataset dataset(tags); | |
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362 OrthancPlugins::DicomDatasetReader reader(dataset); |
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363 |
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364 unsigned int frames; |
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365 if (!reader.GetUnsignedIntegerValue(frames, OrthancPlugins::DICOM_TAG_NUMBER_OF_FRAMES)) |
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366 { |
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367 frames = 1; |
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368 } |
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369 |
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370 LOG(INFO) << "Instance " << instanceId << " contains " << frames << " frame(s)"; |
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371 |
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372 state_ = State_GeometryReady; |
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373 |
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374 for (unsigned int frame = 0; frame < frames; frame++) |
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375 { |
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376 Slice slice; |
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377 if (slice.ParseOrthancFrame(dataset, instanceId, frame)) |
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378 { |
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379 slices_.AddSlice(slice); |
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380 } |
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381 else |
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382 { |
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383 LOG(WARNING) << "Skipping invalid multi-frame instance " << instanceId; |
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384 userCallback_.NotifyGeometryError(*this); |
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385 return; |
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386 } |
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387 } |
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388 |
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389 userCallback_.NotifyGeometryReady(*this); |
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390 } |
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391 |
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392 |
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393 void OrthancSlicesLoader::ParseFrameGeometry(const std::string& instanceId, |
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394 unsigned int frame, |
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395 const void* answer, |
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396 size_t size) |
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397 { |
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398 Json::Value tags; |
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399 if (!MessagingToolbox::ParseJson(tags, answer, size) || |
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400 tags.type() != Json::objectValue) |
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401 { |
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402 userCallback_.NotifyGeometryError(*this); |
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403 return; |
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404 } |
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405 |
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406 OrthancPlugins::FullOrthancDataset dataset(tags); |
| 73 | 407 |
| 408 state_ = State_GeometryReady; | |
| 409 | |
| 410 Slice slice; | |
| 411 if (slice.ParseOrthancFrame(dataset, instanceId, frame)) | |
| 412 { | |
| 413 LOG(INFO) << "Loaded instance " << instanceId; | |
| 414 slices_.AddSlice(slice); | |
| 415 userCallback_.NotifyGeometryReady(*this); | |
| 416 } | |
| 417 else | |
| 418 { | |
| 419 LOG(WARNING) << "Skipping invalid instance " << instanceId; | |
| 420 userCallback_.NotifyGeometryError(*this); | |
| 421 } | |
| 422 } | |
| 423 | |
| 424 | |
|
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425 void OrthancSlicesLoader::ParseSliceImagePng(const Operation& operation, |
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426 const void* answer, |
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427 size_t size) |
| 73 | 428 { |
| 99 | 429 std::auto_ptr<Orthanc::ImageAccessor> image; |
| 73 | 430 |
|
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431 try |
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432 { |
| 99 | 433 image.reset(new Orthanc::PngReader); |
| 434 dynamic_cast<Orthanc::PngReader&>(*image).ReadFromMemory(answer, size); | |
|
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435 } |
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436 catch (Orthanc::OrthancException&) |
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437 { |
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438 NotifySliceImageError(operation); |
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439 return; |
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440 } |
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441 |
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442 if (image->GetWidth() != operation.GetSlice().GetWidth() || |
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443 image->GetHeight() != operation.GetSlice().GetHeight()) |
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444 { |
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445 NotifySliceImageError(operation); |
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446 return; |
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447 } |
| 73 | 448 |
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449 if (operation.GetSlice().GetConverter().GetExpectedPixelFormat() == |
| 73 | 450 Orthanc::PixelFormat_SignedGrayscale16) |
| 451 { | |
| 452 if (image->GetFormat() == Orthanc::PixelFormat_Grayscale16) | |
| 453 { | |
| 454 image->SetFormat(Orthanc::PixelFormat_SignedGrayscale16); | |
| 455 } | |
| 456 else | |
| 457 { | |
|
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458 NotifySliceImageError(operation); |
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459 return; |
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460 } |
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461 } |
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462 |
| 99 | 463 NotifySliceImageSuccess(operation, image); |
|
100
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464 } |
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465 |
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466 |
|
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467 void OrthancSlicesLoader::ParseSliceImageJpeg(const Operation& operation, |
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468 const void* answer, |
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469 size_t size) |
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470 { |
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471 Json::Value encoded; |
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472 if (!MessagingToolbox::ParseJson(encoded, answer, size) || |
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473 encoded.type() != Json::objectValue || |
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474 !encoded.isMember("Orthanc") || |
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475 encoded["Orthanc"].type() != Json::objectValue) |
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476 { |
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477 NotifySliceImageError(operation); |
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478 return; |
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479 } |
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480 |
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481 Json::Value& info = encoded["Orthanc"]; |
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482 if (!info.isMember("PixelData") || |
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483 !info.isMember("Stretched") || |
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484 !info.isMember("Compression") || |
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485 info["Compression"].type() != Json::stringValue || |
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486 info["PixelData"].type() != Json::stringValue || |
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487 info["Stretched"].type() != Json::booleanValue || |
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488 info["Compression"].asString() != "Jpeg") |
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489 { |
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490 NotifySliceImageError(operation); |
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491 return; |
| 94 | 492 } |
|
93
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493 |
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494 bool isSigned = false; |
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495 bool isStretched = info["Stretched"].asBool(); |
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496 |
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497 if (info.isMember("IsSigned")) |
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498 { |
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499 if (info["IsSigned"].type() != Json::booleanValue) |
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500 { |
| 94 | 501 NotifySliceImageError(operation); |
| 502 return; | |
|
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503 } |
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504 else |
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505 { |
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506 isSigned = info["IsSigned"].asBool(); |
| 73 | 507 } |
| 508 } | |
| 509 | |
| 99 | 510 std::auto_ptr<Orthanc::ImageAccessor> reader; |
| 94 | 511 |
|
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512 { |
|
100
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513 std::string jpeg; |
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514 //Orthanc::Toolbox::DecodeBase64(jpeg, info["PixelData"].asString()); |
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515 jpeg = base64_decode(info["PixelData"].asString()); |
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516 |
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517 try |
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518 { |
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519 reader.reset(new Orthanc::JpegReader); |
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520 dynamic_cast<Orthanc::JpegReader&>(*reader).ReadFromMemory(jpeg); |
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521 } |
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522 catch (Orthanc::OrthancException&) |
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523 { |
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524 NotifySliceImageError(operation); |
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525 return; |
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526 } |
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527 } |
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528 |
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529 Orthanc::PixelFormat expectedFormat = |
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530 operation.GetSlice().GetConverter().GetExpectedPixelFormat(); |
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531 |
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532 if (reader->GetFormat() == Orthanc::PixelFormat_RGB24) // This is a color image |
| 73 | 533 { |
|
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534 if (expectedFormat != Orthanc::PixelFormat_RGB24) |
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535 { |
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536 NotifySliceImageError(operation); |
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537 return; |
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538 } |
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539 |
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540 if (isSigned || isStretched) |
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541 { |
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542 NotifySliceImageError(operation); |
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543 return; |
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544 } |
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545 else |
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546 { |
| 99 | 547 NotifySliceImageSuccess(operation, reader); |
|
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548 return; |
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549 } |
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550 } |
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551 |
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552 if (reader->GetFormat() != Orthanc::PixelFormat_Grayscale8) |
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553 { |
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|
554 NotifySliceImageError(operation); |
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555 return; |
| 73 | 556 } |
|
93
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557 |
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558 if (!isStretched) |
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559 { |
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560 if (expectedFormat != reader->GetFormat()) |
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561 { |
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562 NotifySliceImageError(operation); |
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563 return; |
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564 } |
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565 else |
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566 { |
| 99 | 567 NotifySliceImageSuccess(operation, reader); |
|
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568 return; |
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569 } |
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570 } |
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571 |
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572 int32_t stretchLow = 0; |
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573 int32_t stretchHigh = 0; |
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574 |
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575 if (!info.isMember("StretchLow") || |
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576 !info.isMember("StretchHigh") || |
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577 info["StretchLow"].type() != Json::intValue || |
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578 info["StretchHigh"].type() != Json::intValue) |
| 73 | 579 { |
|
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580 NotifySliceImageError(operation); |
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581 return; |
| 73 | 582 } |
|
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583 |
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584 stretchLow = info["StretchLow"].asInt(); |
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585 stretchHigh = info["StretchHigh"].asInt(); |
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586 |
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587 if (stretchLow < -32768 || |
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588 stretchHigh > 65535 || |
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589 (stretchLow < 0 && stretchHigh > 32767)) |
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590 { |
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591 // This range cannot be represented with a uint16_t or an int16_t |
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592 NotifySliceImageError(operation); |
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593 return; |
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594 } |
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595 |
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596 // Decode a grayscale JPEG 8bpp image coming from the Web viewer |
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597 std::auto_ptr<Orthanc::ImageAccessor> image |
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598 (new Orthanc::Image(expectedFormat, reader->GetWidth(), reader->GetHeight(), false)); |
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599 |
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600 float scaling = static_cast<float>(stretchHigh - stretchLow) / 255.0f; |
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601 float offset = static_cast<float>(stretchLow) / scaling; |
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602 |
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603 Orthanc::ImageProcessing::Convert(*image, *reader); |
| 94 | 604 reader.reset(NULL); |
| 605 | |
|
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606 Orthanc::ImageProcessing::ShiftScale(*image, offset, scaling); |
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607 |
| 99 | 608 NotifySliceImageSuccess(operation, image); |
| 73 | 609 } |
| 610 | |
| 611 | |
|
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612 void OrthancSlicesLoader::ParseSliceRawImage(const Operation& operation, |
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613 const void* answer, |
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614 size_t size) |
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615 { |
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616 Orthanc::GzipCompressor compressor; |
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617 |
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618 std::string raw; |
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619 compressor.Uncompress(raw, answer, size); |
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620 |
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621 printf("[%d => %d]\n", size, raw.size()); |
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622 } |
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623 |
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624 |
| 73 | 625 OrthancSlicesLoader::OrthancSlicesLoader(ICallback& callback, |
| 626 IWebService& orthanc) : | |
| 627 webCallback_(new WebCallback(*this)), | |
| 628 userCallback_(callback), | |
| 629 orthanc_(orthanc), | |
| 630 state_(State_Initialization) | |
| 631 { | |
| 632 } | |
| 633 | |
| 634 | |
| 635 void OrthancSlicesLoader::ScheduleLoadSeries(const std::string& seriesId) | |
| 636 { | |
| 637 if (state_ != State_Initialization) | |
| 638 { | |
| 639 throw Orthanc::OrthancException(Orthanc::ErrorCode_BadSequenceOfCalls); | |
| 640 } | |
| 641 else | |
| 642 { | |
| 643 state_ = State_LoadingGeometry; | |
| 644 std::string uri = "/series/" + seriesId + "/instances-tags"; | |
| 645 orthanc_.ScheduleGetRequest(*webCallback_, uri, Operation::DownloadSeriesGeometry()); | |
| 646 } | |
| 647 } | |
| 648 | |
| 649 | |
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650 void OrthancSlicesLoader::ScheduleLoadInstance(const std::string& instanceId) |
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651 { |
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652 if (state_ != State_Initialization) |
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653 { |
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654 throw Orthanc::OrthancException(Orthanc::ErrorCode_BadSequenceOfCalls); |
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655 } |
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656 else |
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657 { |
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658 state_ = State_LoadingGeometry; |
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659 |
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660 // Tag "3004-000c" is "Grid Frame Offset Vector", which is |
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661 // mandatory to read RT DOSE, but is too long to be returned by default |
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662 std::string uri = "/instances/" + instanceId + "/tags?ignore-length=3004-000c"; |
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663 orthanc_.ScheduleGetRequest |
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664 (*webCallback_, uri, Operation::DownloadInstanceGeometry(instanceId)); |
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665 } |
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666 } |
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667 |
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668 |
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669 void OrthancSlicesLoader::ScheduleLoadFrame(const std::string& instanceId, |
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670 unsigned int frame) |
| 73 | 671 { |
| 672 if (state_ != State_Initialization) | |
| 673 { | |
| 674 throw Orthanc::OrthancException(Orthanc::ErrorCode_BadSequenceOfCalls); | |
| 675 } | |
| 676 else | |
| 677 { | |
| 678 state_ = State_LoadingGeometry; | |
| 679 std::string uri = "/instances/" + instanceId + "/tags"; | |
| 680 orthanc_.ScheduleGetRequest | |
|
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681 (*webCallback_, uri, Operation::DownloadFrameGeometry(instanceId, frame)); |
| 73 | 682 } |
| 683 } | |
| 684 | |
| 685 | |
| 77 | 686 bool OrthancSlicesLoader::IsGeometryReady() const |
| 687 { | |
| 688 return state_ == State_GeometryReady; | |
| 689 } | |
| 690 | |
| 691 | |
| 73 | 692 size_t OrthancSlicesLoader::GetSliceCount() const |
| 693 { | |
| 694 if (state_ != State_GeometryReady) | |
| 695 { | |
| 696 throw Orthanc::OrthancException(Orthanc::ErrorCode_BadSequenceOfCalls); | |
| 697 } | |
| 698 | |
| 699 return slices_.GetSliceCount(); | |
| 700 } | |
| 701 | |
| 702 | |
| 703 const Slice& OrthancSlicesLoader::GetSlice(size_t index) const | |
| 704 { | |
| 705 if (state_ != State_GeometryReady) | |
| 706 { | |
| 707 throw Orthanc::OrthancException(Orthanc::ErrorCode_BadSequenceOfCalls); | |
| 708 } | |
| 709 | |
| 710 return slices_.GetSlice(index); | |
| 711 } | |
| 712 | |
| 713 | |
| 77 | 714 bool OrthancSlicesLoader::LookupSlice(size_t& index, |
|
110
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715 const CoordinateSystem3D& plane) const |
| 77 | 716 { |
| 717 if (state_ != State_GeometryReady) | |
| 718 { | |
| 719 throw Orthanc::OrthancException(Orthanc::ErrorCode_BadSequenceOfCalls); | |
| 720 } | |
| 721 | |
| 722 return slices_.LookupSlice(index, plane); | |
| 723 } | |
| 724 | |
| 725 | |
|
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726 void OrthancSlicesLoader::ScheduleSliceImagePng(const Slice& slice, |
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727 size_t index) |
|
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728 { |
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729 std::string uri = ("/instances/" + slice.GetOrthancInstanceId() + "/frames/" + |
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730 boost::lexical_cast<std::string>(slice.GetFrame())); |
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731 |
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732 switch (slice.GetConverter().GetExpectedPixelFormat()) |
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733 { |
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734 case Orthanc::PixelFormat_RGB24: |
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735 uri += "/preview"; |
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736 break; |
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737 |
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738 case Orthanc::PixelFormat_Grayscale16: |
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739 uri += "/image-uint16"; |
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740 break; |
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741 |
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742 case Orthanc::PixelFormat_SignedGrayscale16: |
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743 uri += "/image-int16"; |
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744 break; |
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745 |
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746 default: |
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747 throw Orthanc::OrthancException(Orthanc::ErrorCode_ParameterOutOfRange); |
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748 } |
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749 |
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750 orthanc_.ScheduleGetRequest(*webCallback_, uri, |
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751 Operation::DownloadSliceImage(index, slice, SliceImageQuality_Full)); |
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752 } |
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753 |
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754 |
|
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755 void OrthancSlicesLoader::ScheduleSliceImageJpeg(const Slice& slice, |
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756 size_t index, |
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757 SliceImageQuality quality) |
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758 { |
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759 unsigned int value; |
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760 |
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761 switch (quality) |
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762 { |
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763 case SliceImageQuality_Jpeg50: |
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764 value = 50; |
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765 break; |
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766 |
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767 case SliceImageQuality_Jpeg90: |
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768 value = 90; |
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769 break; |
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770 |
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771 case SliceImageQuality_Jpeg95: |
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772 value = 95; |
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773 break; |
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774 |
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775 default: |
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776 throw Orthanc::OrthancException(Orthanc::ErrorCode_ParameterOutOfRange); |
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777 } |
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778 |
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779 // This requires the official Web viewer plugin to be installed! |
| 94 | 780 std::string uri = ("/web-viewer/instances/jpeg" + |
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781 boost::lexical_cast<std::string>(value) + |
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782 "-" + slice.GetOrthancInstanceId() + "_" + |
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783 boost::lexical_cast<std::string>(slice.GetFrame())); |
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784 |
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785 orthanc_.ScheduleGetRequest(*webCallback_, uri, |
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786 Operation::DownloadSliceImage(index, slice, quality)); |
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787 } |
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788 |
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789 |
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790 |
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791 void OrthancSlicesLoader::ScheduleLoadSliceImage(size_t index, |
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792 SliceImageQuality quality) |
| 73 | 793 { |
| 794 if (state_ != State_GeometryReady) | |
| 795 { | |
| 796 throw Orthanc::OrthancException(Orthanc::ErrorCode_BadSequenceOfCalls); | |
| 797 } | |
|
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798 |
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799 const Slice& slice = GetSlice(index); |
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800 |
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801 if (slice.HasOrthancDecoding()) |
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802 { |
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803 if (quality == SliceImageQuality_Full) |
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804 { |
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805 ScheduleSliceImagePng(slice, index); |
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806 } |
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807 else |
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808 { |
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809 ScheduleSliceImageJpeg(slice, index, quality); |
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810 } |
|
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811 } |
| 73 | 812 else |
| 813 { | |
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814 std::string uri = ("/instances/" + slice.GetOrthancInstanceId() + "/frames/" + |
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815 boost::lexical_cast<std::string>(slice.GetFrame()) + "/raw.gz"); |
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816 orthanc_.ScheduleGetRequest(*webCallback_, uri, |
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817 Operation::DownloadSliceRawImage(index, slice)); |
| 73 | 818 } |
| 819 } | |
| 820 } |