Mercurial > hg > orthanc-wsi
annotate ViewerPlugin/Plugin.cpp @ 153:b798d200ac90
using Semaphore from Orthanc framework
| author | Sebastien Jodogne <s.jodogne@gmail.com> |
|---|---|
| date | Fri, 27 Jul 2018 14:06:26 +0200 |
| parents | 442102e14933 |
| children | 32a94bbb7d05 |
| rev | line source |
|---|---|
| 0 | 1 /** |
| 2 * Orthanc - A Lightweight, RESTful DICOM Store | |
| 3 * Copyright (C) 2012-2016 Sebastien Jodogne, Medical Physics | |
| 4 * Department, University Hospital of Liege, Belgium | |
|
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5 * Copyright (C) 2017-2018 Osimis S.A., Belgium |
| 0 | 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 | |
|
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22 #include "../Framework/PrecompiledHeadersWSI.h" |
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23 |
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24 #include "DicomPyramidCache.h" |
| 0 | 25 #include "../Framework/Jpeg2000Reader.h" |
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26 |
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27 #include <Core/Images/ImageProcessing.h> |
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28 #include <Core/Images/PngWriter.h> |
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29 #include <Core/MultiThreading/Semaphore.h> |
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30 #include <Core/OrthancException.h> |
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31 #include <Core/SystemToolbox.h> |
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32 #include <Plugins/Samples/Common/OrthancPluginCppWrapper.h> |
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33 #include <Plugins/Samples/Common/OrthancPluginConnection.h> |
| 0 | 34 |
| 35 #include <EmbeddedResources.h> | |
| 36 | |
| 37 #include <cassert> | |
| 38 | |
| 39 OrthancPluginContext* context_ = NULL; | |
| 40 | |
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41 std::auto_ptr<OrthancPlugins::OrthancPluginConnection> orthanc_; |
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42 std::auto_ptr<OrthancWSI::DicomPyramidCache> cache_; |
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43 std::auto_ptr<Orthanc::Semaphore> transcoderSemaphore_; |
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44 |
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45 |
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46 static void AnswerSparseTile(OrthancPluginRestOutput* output, |
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47 unsigned int tileWidth, |
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48 unsigned int tileHeight) |
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49 { |
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50 Orthanc::Image tile(Orthanc::PixelFormat_RGB24, tileWidth, tileHeight, false); |
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51 |
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52 // Black (TODO parameter) |
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53 uint8_t red = 0; |
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54 uint8_t green = 0; |
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55 uint8_t blue = 0; |
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56 Orthanc::ImageProcessing::Set(tile, red, green, blue, 255); |
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58 // TODO Cache the tile |
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59 OrthancPluginCompressAndAnswerPngImage(context_, output, OrthancPluginPixelFormat_RGB24, |
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60 tile.GetWidth(), tile.GetHeight(), |
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61 tile.GetPitch(), tile.GetBuffer()); |
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62 } |
| 0 | 63 |
| 64 | |
| 65 static bool DisplayPerformanceWarning() | |
| 66 { | |
| 67 (void) DisplayPerformanceWarning; // Disable warning about unused function | |
| 68 OrthancPluginLogWarning(context_, "Performance warning in whole-slide imaging: " | |
| 69 "Non-release build, runtime debug assertions are turned on"); | |
| 70 return true; | |
| 71 } | |
| 72 | |
| 73 | |
| 74 void ServePyramid(OrthancPluginRestOutput* output, | |
| 75 const char* url, | |
| 76 const OrthancPluginHttpRequest* request) | |
| 77 { | |
| 78 std::string seriesId(request->groups[0]); | |
| 79 | |
| 80 char tmp[1024]; | |
| 81 sprintf(tmp, "Accessing whole-slide pyramid of series %s", seriesId.c_str()); | |
| 82 OrthancPluginLogInfo(context_, tmp); | |
| 83 | |
| 84 | |
| 85 OrthancWSI::DicomPyramidCache::Locker locker(*cache_, seriesId); | |
| 86 | |
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87 unsigned int tileWidth = locker.GetPyramid().GetTileWidth(); |
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88 unsigned int tileHeight = locker.GetPyramid().GetTileHeight(); |
| 0 | 89 unsigned int totalWidth = locker.GetPyramid().GetLevelWidth(0); |
| 90 unsigned int totalHeight = locker.GetPyramid().GetLevelHeight(0); | |
| 91 | |
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92 Json::Value sizes = Json::arrayValue; |
| 0 | 93 Json::Value resolutions = Json::arrayValue; |
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94 Json::Value tilesCount = Json::arrayValue; |
| 0 | 95 for (unsigned int i = 0; i < locker.GetPyramid().GetLevelCount(); i++) |
| 96 { | |
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97 unsigned int levelWidth = locker.GetPyramid().GetLevelWidth(i); |
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98 unsigned int levelHeight = locker.GetPyramid().GetLevelHeight(i); |
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99 |
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100 resolutions.append(static_cast<float>(totalWidth) / static_cast<float>(levelWidth)); |
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101 |
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102 Json::Value s = Json::arrayValue; |
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103 s.append(levelWidth); |
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104 s.append(levelHeight); |
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105 sizes.append(s); |
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106 |
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107 s = Json::arrayValue; |
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108 s.append(OrthancWSI::CeilingDivision(levelWidth, tileWidth)); |
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109 s.append(OrthancWSI::CeilingDivision(levelHeight, tileHeight)); |
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110 tilesCount.append(s); |
| 0 | 111 } |
| 112 | |
| 113 Json::Value result; | |
| 114 result["ID"] = seriesId; | |
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115 result["Resolutions"] = resolutions; |
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116 result["Sizes"] = sizes; |
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117 result["TileHeight"] = tileHeight; |
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118 result["TileWidth"] = tileWidth; |
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119 result["TilesCount"] = tilesCount; |
| 0 | 120 result["TotalHeight"] = totalHeight; |
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121 result["TotalWidth"] = totalWidth; |
| 0 | 122 |
| 123 std::string s = result.toStyledString(); | |
| 124 OrthancPluginAnswerBuffer(context_, output, s.c_str(), s.size(), "application/json"); | |
| 125 } | |
| 126 | |
| 127 | |
| 128 void ServeTile(OrthancPluginRestOutput* output, | |
| 129 const char* url, | |
| 130 const OrthancPluginHttpRequest* request) | |
| 131 { | |
| 132 std::string seriesId(request->groups[0]); | |
| 133 int level = boost::lexical_cast<int>(request->groups[1]); | |
| 134 int tileY = boost::lexical_cast<int>(request->groups[3]); | |
| 135 int tileX = boost::lexical_cast<int>(request->groups[2]); | |
| 136 | |
| 137 char tmp[1024]; | |
| 138 sprintf(tmp, "Accessing tile in series %s: (%d,%d) at level %d", seriesId.c_str(), tileX, tileY, level); | |
| 139 OrthancPluginLogInfo(context_, tmp); | |
| 140 | |
| 141 if (level < 0 || | |
| 142 tileX < 0 || | |
| 143 tileY < 0) | |
| 144 { | |
| 145 throw Orthanc::OrthancException(Orthanc::ErrorCode_ParameterOutOfRange); | |
| 146 } | |
| 147 | |
| 148 // Retrieve the raw tile from the WSI pyramid | |
| 149 OrthancWSI::ImageCompression compression; | |
| 150 Orthanc::PixelFormat format; | |
| 151 std::string tile; | |
| 152 unsigned int tileWidth, tileHeight; | |
| 153 | |
| 154 { | |
| 155 OrthancWSI::DicomPyramidCache::Locker locker(*cache_, seriesId); | |
| 156 | |
| 157 format = locker.GetPyramid().GetPixelFormat(); | |
| 158 tileWidth = locker.GetPyramid().GetTileWidth(); | |
| 159 tileHeight = locker.GetPyramid().GetTileHeight(); | |
| 160 | |
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161 if (!locker.GetPyramid().ReadRawTile(tile, compression, |
| 0 | 162 static_cast<unsigned int>(level), |
| 163 static_cast<unsigned int>(tileX), | |
| 164 static_cast<unsigned int>(tileY))) | |
| 165 { | |
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166 // Handling of missing tile (for sparse tiling): TODO parameter? |
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167 // AnswerSparseTile(output, tileWidth, tileHeight); return; |
| 0 | 168 throw Orthanc::OrthancException(Orthanc::ErrorCode_UnknownResource); |
| 169 } | |
| 170 } | |
| 171 | |
| 172 | |
| 173 // Test whether the tile is a JPEG image. In such a case, we can | |
| 174 // serve it as such, because any Web browser can handle JPEG | |
| 175 | |
| 176 if (compression == OrthancWSI::ImageCompression_Jpeg) | |
| 177 { | |
| 178 OrthancPluginAnswerBuffer(context_, output, tile.c_str(), tile.size(), "image/jpeg"); | |
| 179 return; // We're done | |
| 180 } | |
| 181 | |
| 182 | |
| 183 // The tile does not come from a DICOM-JPEG instance, we need to | |
| 184 // decompress the raw tile | |
| 185 std::auto_ptr<Orthanc::ImageAccessor> decoded; | |
| 186 | |
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187 Orthanc::Semaphore::Locker locker(*transcoderSemaphore_); |
| 0 | 188 |
| 189 switch (compression) | |
| 190 { | |
| 191 case OrthancWSI::ImageCompression_Jpeg2000: | |
| 192 decoded.reset(new OrthancWSI::Jpeg2000Reader); | |
| 193 dynamic_cast<OrthancWSI::Jpeg2000Reader&>(*decoded).ReadFromMemory(tile); | |
| 194 break; | |
| 195 | |
| 196 case OrthancWSI::ImageCompression_None: | |
| 197 { | |
| 198 unsigned int bpp = Orthanc::GetBytesPerPixel(format); | |
| 199 if (bpp * tileWidth * tileHeight != tile.size()) | |
| 200 { | |
| 201 throw Orthanc::OrthancException(Orthanc::ErrorCode_BadFileFormat); | |
| 202 } | |
| 203 | |
| 204 decoded.reset(new Orthanc::ImageAccessor); | |
| 205 decoded->AssignReadOnly(format, tileWidth, tileHeight, bpp * tileWidth, tile.c_str()); | |
| 206 break; | |
| 207 } | |
| 208 | |
| 209 default: | |
| 210 throw Orthanc::OrthancException(Orthanc::ErrorCode_NotImplemented); | |
| 211 } | |
| 212 | |
| 213 | |
| 214 // This is a lossless frame (coming from a JPEG2000 or uncompressed | |
| 215 // DICOM instance), serve it as a PNG image so as to prevent lossy | |
| 216 // compression | |
| 217 | |
| 218 std::string png; | |
| 219 Orthanc::PngWriter writer; | |
| 220 writer.WriteToMemory(png, *decoded); | |
| 221 | |
| 222 OrthancPluginAnswerBuffer(context_, output, png.c_str(), png.size(), "image/png"); | |
| 223 } | |
| 224 | |
| 225 | |
| 226 OrthancPluginErrorCode OnChangeCallback(OrthancPluginChangeType changeType, | |
| 227 OrthancPluginResourceType resourceType, | |
| 228 const char *resourceId) | |
| 229 { | |
| 230 if (resourceType == OrthancPluginResourceType_Series && | |
| 231 changeType == OrthancPluginChangeType_NewChildInstance) | |
| 232 { | |
| 233 char tmp[1024]; | |
| 234 sprintf(tmp, "New instance has been added to series %s, invalidating it", resourceId); | |
| 235 OrthancPluginLogInfo(context_, tmp); | |
| 236 | |
| 237 cache_->Invalidate(resourceId); | |
| 238 } | |
| 239 | |
| 240 return OrthancPluginErrorCode_Success; | |
| 241 } | |
| 242 | |
| 243 | |
| 244 | |
| 245 void ServeFile(OrthancPluginRestOutput* output, | |
| 246 const char* url, | |
| 247 const OrthancPluginHttpRequest* request) | |
| 248 { | |
| 249 Orthanc::EmbeddedResources::FileResourceId resource; | |
| 250 | |
| 251 std::string f(request->groups[0]); | |
| 252 std::string mime; | |
| 253 | |
| 254 if (f == "viewer.html") | |
| 255 { | |
| 256 resource = Orthanc::EmbeddedResources::VIEWER_HTML; | |
| 257 mime = "text/html"; | |
| 258 } | |
| 259 else if (f == "viewer.js") | |
| 260 { | |
| 261 resource = Orthanc::EmbeddedResources::VIEWER_JS; | |
| 262 mime = "application/javascript"; | |
| 263 } | |
| 264 else if (f == "ol.js") | |
| 265 { | |
| 266 resource = Orthanc::EmbeddedResources::OPENLAYERS_JS; | |
| 267 mime = "application/javascript"; | |
| 268 } | |
| 269 else if (f == "ol.css") | |
| 270 { | |
| 271 resource = Orthanc::EmbeddedResources::OPENLAYERS_CSS; | |
| 272 mime = "text/css"; | |
| 273 } | |
| 274 else | |
| 275 { | |
| 276 throw Orthanc::OrthancException(Orthanc::ErrorCode_UnknownResource); | |
| 277 } | |
| 278 | |
| 279 std::string content; | |
| 280 Orthanc::EmbeddedResources::GetFileResource(content, resource); | |
| 281 | |
| 282 OrthancPluginAnswerBuffer(context_, output, content.c_str(), content.size(), mime.c_str()); | |
| 283 } | |
| 284 | |
| 285 | |
| 286 | |
| 287 extern "C" | |
| 288 { | |
| 289 ORTHANC_PLUGINS_API int32_t OrthancPluginInitialize(OrthancPluginContext* context) | |
| 290 { | |
| 291 context_ = context; | |
| 292 assert(DisplayPerformanceWarning()); | |
| 293 | |
| 294 /* Check the version of the Orthanc core */ | |
| 295 if (OrthancPluginCheckVersion(context_) == 0) | |
| 296 { | |
| 297 char info[1024]; | |
| 298 sprintf(info, "Your version of Orthanc (%s) must be above %d.%d.%d to run this plugin", | |
| 299 context_->orthancVersion, | |
| 300 ORTHANC_PLUGINS_MINIMAL_MAJOR_NUMBER, | |
| 301 ORTHANC_PLUGINS_MINIMAL_MINOR_NUMBER, | |
| 302 ORTHANC_PLUGINS_MINIMAL_REVISION_NUMBER); | |
| 303 OrthancPluginLogError(context_, info); | |
| 304 return -1; | |
| 305 } | |
| 306 | |
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307 if (!OrthancPlugins::CheckMinimalOrthancVersion(context_, 1, 1, 0)) |
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308 { |
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309 // We need the "/instances/.../frames/.../raw" URI that was introduced in Orthanc 1.1.0 |
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310 return -1; |
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311 } |
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312 |
| 0 | 313 // Limit the number of PNG transcoders to the number of available |
| 314 // hardware threads (e.g. number of CPUs or cores or | |
| 315 // hyperthreading units) | |
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316 unsigned int threads = Orthanc::SystemToolbox::GetHardwareConcurrency(); |
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317 transcoderSemaphore_.reset(new Orthanc::Semaphore(threads)); |
| 0 | 318 |
| 319 char info[1024]; | |
| 145 | 320 sprintf(info, "The whole-slide imaging plugin will use at most %u threads to transcode the tiles", threads); |
| 0 | 321 OrthancPluginLogWarning(context_, info); |
| 322 | |
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323 OrthancPluginSetDescription(context, "Provides a Web viewer of whole-slide microscopic images within Orthanc."); |
| 0 | 324 |
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325 orthanc_.reset(new OrthancPlugins::OrthancPluginConnection(context)); |
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326 cache_.reset(new OrthancWSI::DicomPyramidCache(*orthanc_, 10 /* Number of pyramids to be cached - TODO parameter */)); |
| 0 | 327 |
| 328 OrthancPluginRegisterOnChangeCallback(context_, OnChangeCallback); | |
| 329 | |
| 330 OrthancPlugins::RegisterRestCallback<ServeFile>(context, "/wsi/app/(ol.css)", true); | |
| 331 OrthancPlugins::RegisterRestCallback<ServeFile>(context, "/wsi/app/(ol.js)", true); | |
| 332 OrthancPlugins::RegisterRestCallback<ServeFile>(context, "/wsi/app/(viewer.html)", true); | |
| 333 OrthancPlugins::RegisterRestCallback<ServeFile>(context, "/wsi/app/(viewer.js)", true); | |
| 334 OrthancPlugins::RegisterRestCallback<ServePyramid>(context, "/wsi/pyramids/([0-9a-f-]+)", true); | |
| 335 OrthancPlugins::RegisterRestCallback<ServeTile>(context, "/wsi/tiles/([0-9a-f-]+)/([0-9-]+)/([0-9-]+)/([0-9-]+)", true); | |
| 336 | |
| 337 // Extend the default Orthanc Explorer with custom JavaScript for WSI | |
| 338 std::string explorer; | |
| 339 Orthanc::EmbeddedResources::GetFileResource(explorer, Orthanc::EmbeddedResources::ORTHANC_EXPLORER); | |
| 340 OrthancPluginExtendOrthancExplorer(context_, explorer.c_str()); | |
| 341 | |
| 342 return 0; | |
| 343 } | |
| 344 | |
| 345 | |
| 346 ORTHANC_PLUGINS_API void OrthancPluginFinalize() | |
| 347 { | |
| 348 cache_.reset(NULL); | |
| 349 orthanc_.reset(NULL); | |
| 350 transcoderSemaphore_.reset(NULL); | |
| 351 } | |
| 352 | |
| 353 | |
| 354 ORTHANC_PLUGINS_API const char* OrthancPluginGetName() | |
| 355 { | |
| 356 return "wsi"; | |
| 357 } | |
| 358 | |
| 359 | |
| 360 ORTHANC_PLUGINS_API const char* OrthancPluginGetVersion() | |
| 361 { | |
| 362 return ORTHANC_WSI_VERSION; | |
| 363 } | |
| 364 } |