Mercurial > hg > orthanc-wsi
annotate ViewerPlugin/Plugin.cpp @ 91:8fd5bf76bb8e
cppcheck
| author | Sebastien Jodogne <s.jodogne@gmail.com> |
|---|---|
| date | Thu, 22 Dec 2016 20:18:34 +0100 |
| parents | a8c90aa32ca6 |
| children | ff0ef01c332c |
| 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 | |
| 5 * | |
| 6 * This program is free software: you can redistribute it and/or | |
| 7 * modify it under the terms of the GNU Affero General Public License | |
| 8 * as published by the Free Software Foundation, either version 3 of | |
| 9 * the License, or (at your option) any later version. | |
| 10 * | |
| 11 * This program is distributed in the hope that it will be useful, but | |
| 12 * WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
| 14 * Affero General Public License for more details. | |
| 15 * | |
| 16 * You should have received a copy of the GNU Affero General Public License | |
| 17 * along with this program. If not, see <http://www.gnu.org/licenses/>. | |
| 18 **/ | |
| 19 | |
| 20 | |
|
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21 #include "../Framework/PrecompiledHeadersWSI.h" |
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22 |
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23 #include "DicomPyramidCache.h" |
| 0 | 24 #include "../Framework/Jpeg2000Reader.h" |
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25 |
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26 #include "../Resources/Orthanc/Core/Images/ImageProcessing.h" |
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27 #include "../Resources/Orthanc/Core/Images/PngWriter.h" |
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28 #include "../Resources/Orthanc/Core/MultiThreading/Semaphore.h" |
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29 #include "../Resources/Orthanc/Core/OrthancException.h" |
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30 #include "../Resources/Orthanc/Plugins/Samples/Common/OrthancPluginCppWrapper.h" |
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31 #include "../Resources/Orthanc/Plugins/Samples/Common/OrthancPluginConnection.h" |
| 0 | 32 |
| 33 #include <EmbeddedResources.h> | |
| 34 | |
| 35 #include <cassert> | |
| 36 | |
| 37 OrthancPluginContext* context_ = NULL; | |
| 38 | |
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39 std::auto_ptr<OrthancPlugins::OrthancPluginConnection> orthanc_; |
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40 std::auto_ptr<OrthancWSI::DicomPyramidCache> cache_; |
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41 std::auto_ptr<Orthanc::Semaphore> transcoderSemaphore_; |
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42 |
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43 |
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44 static void AnswerSparseTile(OrthancPluginRestOutput* output, |
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45 unsigned int tileWidth, |
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46 unsigned int tileHeight) |
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47 { |
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48 Orthanc::Image tile(Orthanc::PixelFormat_RGB24, tileWidth, tileHeight, false); |
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49 |
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50 // Black (TODO parameter) |
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51 uint8_t red = 0; |
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52 uint8_t green = 0; |
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53 uint8_t blue = 0; |
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54 Orthanc::ImageProcessing::Set(tile, red, green, blue, 255); |
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55 |
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56 // TODO Cache the tile |
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57 OrthancPluginCompressAndAnswerPngImage(context_, output, OrthancPluginPixelFormat_RGB24, |
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58 tile.GetWidth(), tile.GetHeight(), |
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59 tile.GetPitch(), tile.GetBuffer()); |
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60 } |
| 0 | 61 |
| 62 | |
| 63 static bool DisplayPerformanceWarning() | |
| 64 { | |
| 65 (void) DisplayPerformanceWarning; // Disable warning about unused function | |
| 66 OrthancPluginLogWarning(context_, "Performance warning in whole-slide imaging: " | |
| 67 "Non-release build, runtime debug assertions are turned on"); | |
| 68 return true; | |
| 69 } | |
| 70 | |
| 71 | |
| 72 void ServePyramid(OrthancPluginRestOutput* output, | |
| 73 const char* url, | |
| 74 const OrthancPluginHttpRequest* request) | |
| 75 { | |
| 76 std::string seriesId(request->groups[0]); | |
| 77 | |
| 78 char tmp[1024]; | |
| 79 sprintf(tmp, "Accessing whole-slide pyramid of series %s", seriesId.c_str()); | |
| 80 OrthancPluginLogInfo(context_, tmp); | |
| 81 | |
| 82 | |
| 83 OrthancWSI::DicomPyramidCache::Locker locker(*cache_, seriesId); | |
| 84 | |
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85 unsigned int tileWidth = locker.GetPyramid().GetTileWidth(); |
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86 unsigned int tileHeight = locker.GetPyramid().GetTileHeight(); |
| 0 | 87 unsigned int totalWidth = locker.GetPyramid().GetLevelWidth(0); |
| 88 unsigned int totalHeight = locker.GetPyramid().GetLevelHeight(0); | |
| 89 | |
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90 Json::Value sizes = Json::arrayValue; |
| 0 | 91 Json::Value resolutions = Json::arrayValue; |
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92 Json::Value tilesCount = Json::arrayValue; |
| 0 | 93 for (unsigned int i = 0; i < locker.GetPyramid().GetLevelCount(); i++) |
| 94 { | |
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95 unsigned int levelWidth = locker.GetPyramid().GetLevelWidth(i); |
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96 unsigned int levelHeight = locker.GetPyramid().GetLevelHeight(i); |
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97 |
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98 resolutions.append(static_cast<float>(totalWidth) / static_cast<float>(levelWidth)); |
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99 |
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100 Json::Value s = Json::arrayValue; |
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101 s.append(levelWidth); |
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102 s.append(levelHeight); |
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103 sizes.append(s); |
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104 |
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105 s = Json::arrayValue; |
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106 s.append(OrthancWSI::CeilingDivision(levelWidth, tileWidth)); |
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107 s.append(OrthancWSI::CeilingDivision(levelHeight, tileHeight)); |
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108 tilesCount.append(s); |
| 0 | 109 } |
| 110 | |
| 111 Json::Value result; | |
| 112 result["ID"] = seriesId; | |
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113 result["Resolutions"] = resolutions; |
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114 result["Sizes"] = sizes; |
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115 result["TileHeight"] = tileHeight; |
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116 result["TileWidth"] = tileWidth; |
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117 result["TilesCount"] = tilesCount; |
| 0 | 118 result["TotalHeight"] = totalHeight; |
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119 result["TotalWidth"] = totalWidth; |
| 0 | 120 |
| 121 std::string s = result.toStyledString(); | |
| 122 OrthancPluginAnswerBuffer(context_, output, s.c_str(), s.size(), "application/json"); | |
| 123 } | |
| 124 | |
| 125 | |
| 126 void ServeTile(OrthancPluginRestOutput* output, | |
| 127 const char* url, | |
| 128 const OrthancPluginHttpRequest* request) | |
| 129 { | |
| 130 std::string seriesId(request->groups[0]); | |
| 131 int level = boost::lexical_cast<int>(request->groups[1]); | |
| 132 int tileY = boost::lexical_cast<int>(request->groups[3]); | |
| 133 int tileX = boost::lexical_cast<int>(request->groups[2]); | |
| 134 | |
| 135 char tmp[1024]; | |
| 136 sprintf(tmp, "Accessing tile in series %s: (%d,%d) at level %d", seriesId.c_str(), tileX, tileY, level); | |
| 137 OrthancPluginLogInfo(context_, tmp); | |
| 138 | |
| 139 if (level < 0 || | |
| 140 tileX < 0 || | |
| 141 tileY < 0) | |
| 142 { | |
| 143 throw Orthanc::OrthancException(Orthanc::ErrorCode_ParameterOutOfRange); | |
| 144 } | |
| 145 | |
| 146 // Retrieve the raw tile from the WSI pyramid | |
| 147 OrthancWSI::ImageCompression compression; | |
| 148 Orthanc::PixelFormat format; | |
| 149 std::string tile; | |
| 150 unsigned int tileWidth, tileHeight; | |
| 151 | |
| 152 { | |
| 153 OrthancWSI::DicomPyramidCache::Locker locker(*cache_, seriesId); | |
| 154 | |
| 155 format = locker.GetPyramid().GetPixelFormat(); | |
| 156 tileWidth = locker.GetPyramid().GetTileWidth(); | |
| 157 tileHeight = locker.GetPyramid().GetTileHeight(); | |
| 158 | |
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159 if (!locker.GetPyramid().ReadRawTile(tile, compression, |
| 0 | 160 static_cast<unsigned int>(level), |
| 161 static_cast<unsigned int>(tileX), | |
| 162 static_cast<unsigned int>(tileY))) | |
| 163 { | |
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164 // Handling of missing tile (for sparse tiling): TODO parameter? |
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165 // AnswerSparseTile(output, tileWidth, tileHeight); return; |
| 0 | 166 throw Orthanc::OrthancException(Orthanc::ErrorCode_UnknownResource); |
| 167 } | |
| 168 } | |
| 169 | |
| 170 | |
| 171 // Test whether the tile is a JPEG image. In such a case, we can | |
| 172 // serve it as such, because any Web browser can handle JPEG | |
| 173 | |
| 174 if (compression == OrthancWSI::ImageCompression_Jpeg) | |
| 175 { | |
| 176 OrthancPluginAnswerBuffer(context_, output, tile.c_str(), tile.size(), "image/jpeg"); | |
| 177 return; // We're done | |
| 178 } | |
| 179 | |
| 180 | |
| 181 // The tile does not come from a DICOM-JPEG instance, we need to | |
| 182 // decompress the raw tile | |
| 183 std::auto_ptr<Orthanc::ImageAccessor> decoded; | |
| 184 | |
| 185 Orthanc::Semaphore::Locker locker(*transcoderSemaphore_); | |
| 186 | |
| 187 switch (compression) | |
| 188 { | |
| 189 case OrthancWSI::ImageCompression_Jpeg2000: | |
| 190 decoded.reset(new OrthancWSI::Jpeg2000Reader); | |
| 191 dynamic_cast<OrthancWSI::Jpeg2000Reader&>(*decoded).ReadFromMemory(tile); | |
| 192 break; | |
| 193 | |
| 194 case OrthancWSI::ImageCompression_None: | |
| 195 { | |
| 196 unsigned int bpp = Orthanc::GetBytesPerPixel(format); | |
| 197 if (bpp * tileWidth * tileHeight != tile.size()) | |
| 198 { | |
| 199 throw Orthanc::OrthancException(Orthanc::ErrorCode_BadFileFormat); | |
| 200 } | |
| 201 | |
| 202 decoded.reset(new Orthanc::ImageAccessor); | |
| 203 decoded->AssignReadOnly(format, tileWidth, tileHeight, bpp * tileWidth, tile.c_str()); | |
| 204 break; | |
| 205 } | |
| 206 | |
| 207 default: | |
| 208 throw Orthanc::OrthancException(Orthanc::ErrorCode_NotImplemented); | |
| 209 } | |
| 210 | |
| 211 | |
| 212 // This is a lossless frame (coming from a JPEG2000 or uncompressed | |
| 213 // DICOM instance), serve it as a PNG image so as to prevent lossy | |
| 214 // compression | |
| 215 | |
| 216 std::string png; | |
| 217 Orthanc::PngWriter writer; | |
| 218 writer.WriteToMemory(png, *decoded); | |
| 219 | |
| 220 OrthancPluginAnswerBuffer(context_, output, png.c_str(), png.size(), "image/png"); | |
| 221 } | |
| 222 | |
| 223 | |
| 224 OrthancPluginErrorCode OnChangeCallback(OrthancPluginChangeType changeType, | |
| 225 OrthancPluginResourceType resourceType, | |
| 226 const char *resourceId) | |
| 227 { | |
| 228 if (resourceType == OrthancPluginResourceType_Series && | |
| 229 changeType == OrthancPluginChangeType_NewChildInstance) | |
| 230 { | |
| 231 char tmp[1024]; | |
| 232 sprintf(tmp, "New instance has been added to series %s, invalidating it", resourceId); | |
| 233 OrthancPluginLogInfo(context_, tmp); | |
| 234 | |
| 235 cache_->Invalidate(resourceId); | |
| 236 } | |
| 237 | |
| 238 return OrthancPluginErrorCode_Success; | |
| 239 } | |
| 240 | |
| 241 | |
| 242 | |
| 243 void ServeFile(OrthancPluginRestOutput* output, | |
| 244 const char* url, | |
| 245 const OrthancPluginHttpRequest* request) | |
| 246 { | |
| 247 Orthanc::EmbeddedResources::FileResourceId resource; | |
| 248 | |
| 249 std::string f(request->groups[0]); | |
| 250 std::string mime; | |
| 251 | |
| 252 if (f == "viewer.html") | |
| 253 { | |
| 254 resource = Orthanc::EmbeddedResources::VIEWER_HTML; | |
| 255 mime = "text/html"; | |
| 256 } | |
| 257 else if (f == "viewer.js") | |
| 258 { | |
| 259 resource = Orthanc::EmbeddedResources::VIEWER_JS; | |
| 260 mime = "application/javascript"; | |
| 261 } | |
| 262 else if (f == "ol.js") | |
| 263 { | |
| 264 resource = Orthanc::EmbeddedResources::OPENLAYERS_JS; | |
| 265 mime = "application/javascript"; | |
| 266 } | |
| 267 else if (f == "ol.css") | |
| 268 { | |
| 269 resource = Orthanc::EmbeddedResources::OPENLAYERS_CSS; | |
| 270 mime = "text/css"; | |
| 271 } | |
| 272 else | |
| 273 { | |
| 274 throw Orthanc::OrthancException(Orthanc::ErrorCode_UnknownResource); | |
| 275 } | |
| 276 | |
| 277 std::string content; | |
| 278 Orthanc::EmbeddedResources::GetFileResource(content, resource); | |
| 279 | |
| 280 OrthancPluginAnswerBuffer(context_, output, content.c_str(), content.size(), mime.c_str()); | |
| 281 } | |
| 282 | |
| 283 | |
| 284 | |
| 285 extern "C" | |
| 286 { | |
| 287 ORTHANC_PLUGINS_API int32_t OrthancPluginInitialize(OrthancPluginContext* context) | |
| 288 { | |
| 289 context_ = context; | |
| 290 assert(DisplayPerformanceWarning()); | |
| 291 | |
| 292 /* Check the version of the Orthanc core */ | |
| 293 if (OrthancPluginCheckVersion(context_) == 0) | |
| 294 { | |
| 295 char info[1024]; | |
| 296 sprintf(info, "Your version of Orthanc (%s) must be above %d.%d.%d to run this plugin", | |
| 297 context_->orthancVersion, | |
| 298 ORTHANC_PLUGINS_MINIMAL_MAJOR_NUMBER, | |
| 299 ORTHANC_PLUGINS_MINIMAL_MINOR_NUMBER, | |
| 300 ORTHANC_PLUGINS_MINIMAL_REVISION_NUMBER); | |
| 301 OrthancPluginLogError(context_, info); | |
| 302 return -1; | |
| 303 } | |
| 304 | |
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305 if (!OrthancPlugins::CheckMinimalOrthancVersion(context_, 1, 1, 0)) |
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306 { |
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307 // We need the "/instances/.../frames/.../raw" URI that was introduced in Orthanc 1.1.0 |
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308 return -1; |
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309 } |
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310 |
| 0 | 311 // Limit the number of PNG transcoders to the number of available |
| 312 // hardware threads (e.g. number of CPUs or cores or | |
| 313 // hyperthreading units) | |
| 314 unsigned int threads = boost::thread::hardware_concurrency(); | |
| 315 | |
| 316 if (threads <= 0) | |
| 317 { | |
| 318 threads = 1; | |
| 319 } | |
| 320 | |
| 321 transcoderSemaphore_.reset(new Orthanc::Semaphore(threads)); | |
| 322 | |
| 323 char info[1024]; | |
| 324 sprintf(info, "The whole-slide imaging plugin will use at most %d threads to transcode the tiles", threads); | |
| 325 OrthancPluginLogWarning(context_, info); | |
| 326 | |
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327 OrthancPluginSetDescription(context, "Provides a Web viewer of whole-slide microscopic images within Orthanc."); |
| 0 | 328 |
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329 orthanc_.reset(new OrthancPlugins::OrthancPluginConnection(context)); |
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330 cache_.reset(new OrthancWSI::DicomPyramidCache(*orthanc_, 10 /* Number of pyramids to be cached - TODO parameter */)); |
| 0 | 331 |
| 332 OrthancPluginRegisterOnChangeCallback(context_, OnChangeCallback); | |
| 333 | |
| 334 OrthancPlugins::RegisterRestCallback<ServeFile>(context, "/wsi/app/(ol.css)", true); | |
| 335 OrthancPlugins::RegisterRestCallback<ServeFile>(context, "/wsi/app/(ol.js)", true); | |
| 336 OrthancPlugins::RegisterRestCallback<ServeFile>(context, "/wsi/app/(viewer.html)", true); | |
| 337 OrthancPlugins::RegisterRestCallback<ServeFile>(context, "/wsi/app/(viewer.js)", true); | |
| 338 OrthancPlugins::RegisterRestCallback<ServePyramid>(context, "/wsi/pyramids/([0-9a-f-]+)", true); | |
| 339 OrthancPlugins::RegisterRestCallback<ServeTile>(context, "/wsi/tiles/([0-9a-f-]+)/([0-9-]+)/([0-9-]+)/([0-9-]+)", true); | |
| 340 | |
| 341 // Extend the default Orthanc Explorer with custom JavaScript for WSI | |
| 342 std::string explorer; | |
| 343 Orthanc::EmbeddedResources::GetFileResource(explorer, Orthanc::EmbeddedResources::ORTHANC_EXPLORER); | |
| 344 OrthancPluginExtendOrthancExplorer(context_, explorer.c_str()); | |
| 345 | |
| 346 return 0; | |
| 347 } | |
| 348 | |
| 349 | |
| 350 ORTHANC_PLUGINS_API void OrthancPluginFinalize() | |
| 351 { | |
| 352 cache_.reset(NULL); | |
| 353 orthanc_.reset(NULL); | |
| 354 transcoderSemaphore_.reset(NULL); | |
| 355 } | |
| 356 | |
| 357 | |
| 358 ORTHANC_PLUGINS_API const char* OrthancPluginGetName() | |
| 359 { | |
| 360 return "wsi"; | |
| 361 } | |
| 362 | |
| 363 | |
| 364 ORTHANC_PLUGINS_API const char* OrthancPluginGetVersion() | |
| 365 { | |
| 366 return ORTHANC_WSI_VERSION; | |
| 367 } | |
| 368 } |