Mercurial > hg > orthanc-wsi
annotate ViewerPlugin/Plugin.cpp @ 73:a8c90aa32ca6
LRU caching of pyramids, OrthancWSIClearCache script
author | Sebastien Jodogne <s.jodogne@gmail.com> |
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date | Mon, 28 Nov 2016 16:51:19 +0100 |
parents | d529d9ce3c7e |
children | ff0ef01c332c |
rev | line source |
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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 | |
16
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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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Provide "--version" in command-line tools
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327 OrthancPluginSetDescription(context, "Provides a Web viewer of whole-slide microscopic images within Orthanc."); |
0 | 328 |
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refactoring using new items in the plugin toolbox of Orthanc
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329 orthanc_.reset(new OrthancPlugins::OrthancPluginConnection(context)); |
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LRU caching of pyramids, OrthancWSIClearCache script
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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 } |