Mercurial > hg > orthanc-wsi
annotate Framework/Algorithms/PyramidReader.cpp @ 154:32a94bbb7d05
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author | Sebastien Jodogne <s.jodogne@gmail.com> |
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date | Mon, 08 Oct 2018 12:12:39 +0200 |
parents | a0f9a3df1110 |
children | 6b8ccfc02051 |
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 | |
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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 "../PrecompiledHeadersWSI.h" |
0 | 23 #include "PyramidReader.h" |
24 | |
25 #include "../ImageToolbox.h" | |
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26 #include <Core/Logging.h> |
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27 #include <Core/OrthancException.h> |
0 | 28 |
29 #include <cassert> | |
30 | |
31 namespace OrthancWSI | |
32 { | |
33 class PyramidReader::SourceTile : public boost::noncopyable | |
34 { | |
35 private: | |
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36 PyramidReader& that_; |
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37 unsigned int tileX_; |
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38 unsigned int tileY_; |
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39 bool hasRawTile_; |
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40 std::string rawTile_; |
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41 ImageCompression rawTileCompression_; |
0 | 42 |
43 std::auto_ptr<Orthanc::ImageAccessor> decoded_; | |
44 | |
45 bool IsRepaintNeeded() const | |
46 { | |
47 return (that_.parameters_.IsRepaintBackground() && | |
48 ((tileX_ + 1) * that_.sourceTileWidth_ > that_.levelWidth_ || | |
49 (tileY_ + 1) * that_.sourceTileHeight_ > that_.levelHeight_)); | |
50 } | |
51 | |
52 void RepaintBackground() | |
53 { | |
54 assert(decoded_.get() != NULL); | |
55 LOG(INFO) << "Repainting background of tile (" | |
56 << tileX_ << "," << tileY_ << ") at level " << that_.level_; | |
57 | |
58 if ((tileY_ + 1) * that_.sourceTileHeight_ > that_.levelHeight_) | |
59 { | |
60 // Bottom overflow | |
61 assert(tileY_ * that_.sourceTileHeight_ < that_.levelHeight_); | |
62 | |
63 unsigned int bottom = that_.levelHeight_ - tileY_ * that_.sourceTileHeight_; | |
154 | 64 Orthanc::ImageAccessor a; |
65 decoded_->GetRegion(a, 0, bottom, | |
66 that_.sourceTileWidth_, | |
67 that_.sourceTileHeight_ - bottom); | |
0 | 68 ImageToolbox::Set(a, |
69 that_.parameters_.GetBackgroundColorRed(), | |
70 that_.parameters_.GetBackgroundColorGreen(), | |
71 that_.parameters_.GetBackgroundColorBlue()); | |
72 | |
73 } | |
74 | |
75 if ((tileX_ + 1) * that_.sourceTileWidth_ > that_.levelWidth_) | |
76 { | |
77 // Right overflow | |
78 assert(tileX_ * that_.sourceTileWidth_ < that_.levelWidth_); | |
79 | |
80 unsigned int right = that_.levelWidth_ - tileX_ * that_.sourceTileWidth_; | |
154 | 81 Orthanc::ImageAccessor a; |
82 decoded_->GetRegion(a, right, 0, | |
83 that_.sourceTileWidth_ - right, | |
84 that_.sourceTileHeight_); | |
0 | 85 ImageToolbox::Set(a, |
86 that_.parameters_.GetBackgroundColorRed(), | |
87 that_.parameters_.GetBackgroundColorGreen(), | |
88 that_.parameters_.GetBackgroundColorBlue()); | |
89 } | |
90 } | |
91 | |
92 | |
93 public: | |
94 SourceTile(PyramidReader& that, | |
95 unsigned int tileX, | |
96 unsigned int tileY) : | |
97 that_(that), | |
98 tileX_(tileX), | |
99 tileY_(tileY) | |
100 { | |
101 if (!that_.parameters_.IsForceReencode() && | |
102 !IsRepaintNeeded() && | |
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103 that_.source_.ReadRawTile(rawTile_, rawTileCompression_, that_.level_, tileX, tileY)) |
0 | 104 { |
105 hasRawTile_ = true; | |
106 } | |
107 else | |
108 { | |
109 hasRawTile_ = false; | |
110 decoded_.reset(that_.source_.DecodeTile(that_.level_, tileX, tileY)); | |
111 if (decoded_.get() == NULL) | |
112 { | |
113 throw Orthanc::OrthancException(Orthanc::ErrorCode_InternalError); | |
114 } | |
115 | |
116 RepaintBackground(); | |
117 } | |
118 } | |
119 | |
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120 bool HasRawTile(ImageCompression& compression) const |
0 | 121 { |
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122 if (hasRawTile_) |
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123 { |
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124 compression = rawTileCompression_; |
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125 return true; |
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126 } |
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127 else |
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128 { |
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129 return false; |
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130 } |
0 | 131 } |
132 | |
133 const std::string& GetRawTile() const | |
134 { | |
135 if (hasRawTile_) | |
136 { | |
137 return rawTile_; | |
138 } | |
139 else | |
140 { | |
141 throw Orthanc::OrthancException(Orthanc::ErrorCode_InternalError); | |
142 } | |
143 } | |
144 | |
145 const Orthanc::ImageAccessor& GetDecodedTile() | |
146 { | |
147 if (decoded_.get() == NULL) | |
148 { | |
149 if (!hasRawTile_) | |
150 { | |
151 throw Orthanc::OrthancException(Orthanc::ErrorCode_InternalError); | |
152 } | |
153 | |
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154 decoded_.reset(ImageToolbox::DecodeTile(rawTile_, rawTileCompression_)); |
0 | 155 if (decoded_.get() == NULL) |
156 { | |
157 throw Orthanc::OrthancException(Orthanc::ErrorCode_InternalError); | |
158 } | |
159 | |
160 RepaintBackground(); | |
161 } | |
162 | |
163 return *decoded_; | |
164 } | |
165 }; | |
166 | |
167 | |
168 Orthanc::ImageAccessor& PyramidReader::GetOutsideTile() | |
169 { | |
170 if (outside_.get() == NULL) | |
171 { | |
172 outside_.reset(ImageToolbox::Allocate(source_.GetPixelFormat(), targetTileWidth_, targetTileHeight_)); | |
173 ImageToolbox::Set(*outside_, | |
174 parameters_.GetBackgroundColorRed(), | |
175 parameters_.GetBackgroundColorGreen(), | |
176 parameters_.GetBackgroundColorBlue()); | |
177 } | |
178 | |
179 return *outside_; | |
180 } | |
181 | |
182 | |
183 void PyramidReader::CheckTileSize(const Orthanc::ImageAccessor& tile) const | |
184 { | |
185 if (tile.GetWidth() != sourceTileWidth_ || | |
186 tile.GetHeight() != sourceTileHeight_) | |
187 { | |
188 LOG(ERROR) << "One tile in the input image has size " << tile.GetWidth() << "x" << tile.GetHeight() | |
189 << " instead of required " << source_.GetTileWidth() << "x" << source_.GetTileHeight(); | |
190 throw Orthanc::OrthancException(Orthanc::ErrorCode_IncompatibleImageSize); | |
191 } | |
192 } | |
193 | |
194 | |
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195 void PyramidReader::CheckTileSize(const std::string& tile, |
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196 ImageCompression compression) const |
0 | 197 { |
198 if (parameters_.IsSafetyCheck()) | |
199 { | |
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200 std::auto_ptr<Orthanc::ImageAccessor> decoded(ImageToolbox::DecodeTile(tile, compression)); |
0 | 201 CheckTileSize(*decoded); |
202 } | |
203 } | |
204 | |
205 | |
206 PyramidReader::SourceTile& PyramidReader::AccessSourceTile(const Location& location) | |
207 { | |
208 Cache::iterator found = cache_.find(location); | |
209 if (found != cache_.end()) | |
210 { | |
211 return *found->second; | |
212 } | |
213 else | |
214 { | |
215 SourceTile *tile = new SourceTile(*this, location.first, location.second); | |
216 cache_[location] = tile; | |
217 return *tile; | |
218 } | |
219 } | |
220 | |
221 | |
222 PyramidReader::Location PyramidReader::MapTargetToSourceLocation(unsigned int tileX, | |
223 unsigned int tileY) | |
224 { | |
225 return std::make_pair(tileX / (sourceTileWidth_ / targetTileWidth_), | |
226 tileY / (sourceTileHeight_ / targetTileHeight_)); | |
227 } | |
228 | |
229 | |
230 PyramidReader::PyramidReader(ITiledPyramid& source, | |
231 unsigned int level, | |
232 unsigned int targetTileWidth, | |
233 unsigned int targetTileHeight, | |
234 const DicomizerParameters& parameters) : | |
235 source_(source), | |
236 level_(level), | |
237 levelWidth_(source.GetLevelWidth(level)), | |
238 levelHeight_(source.GetLevelHeight(level)), | |
239 sourceTileWidth_(source.GetTileWidth()), | |
240 sourceTileHeight_(source.GetTileHeight()), | |
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241 targetTileWidth_(targetTileWidth), |
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242 targetTileHeight_(targetTileHeight), |
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243 parameters_(parameters) |
0 | 244 { |
245 if (sourceTileWidth_ % targetTileWidth_ != 0 || | |
246 sourceTileHeight_ % targetTileHeight_ != 0) | |
247 { | |
248 LOG(ERROR) << "When resampling the tile size, it must be a integer divisor of the original tile size"; | |
249 throw Orthanc::OrthancException(Orthanc::ErrorCode_IncompatibleImageSize); | |
250 } | |
251 } | |
252 | |
253 | |
254 PyramidReader::~PyramidReader() | |
255 { | |
256 for (Cache::iterator it = cache_.begin(); it != cache_.end(); ++it) | |
257 { | |
258 assert(it->second != NULL); | |
259 delete it->second; | |
260 } | |
261 } | |
262 | |
263 | |
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264 const std::string* PyramidReader::GetRawTile(ImageCompression& compression, |
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265 unsigned int tileX, |
0 | 266 unsigned int tileY) |
267 { | |
268 if (sourceTileWidth_ != targetTileWidth_ || | |
269 sourceTileHeight_ != targetTileHeight_) | |
270 { | |
271 return NULL; | |
272 } | |
273 | |
274 SourceTile& source = AccessSourceTile(MapTargetToSourceLocation(tileX, tileY)); | |
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275 |
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276 if (source.HasRawTile(compression)) |
0 | 277 { |
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278 CheckTileSize(source.GetRawTile(), compression); |
0 | 279 return &source.GetRawTile(); |
280 } | |
281 else | |
282 { | |
283 return NULL; | |
284 } | |
285 } | |
286 | |
287 | |
154 | 288 void PyramidReader::GetDecodedTile(Orthanc::ImageAccessor& target, |
289 unsigned int tileX, | |
290 unsigned int tileY) | |
0 | 291 { |
292 if (tileX * targetTileWidth_ >= levelWidth_ || | |
293 tileY * targetTileHeight_ >= levelHeight_) | |
294 { | |
295 // Accessing a tile out of the source image | |
154 | 296 GetOutsideTile().GetReadOnlyAccessor(target); |
0 | 297 } |
154 | 298 else |
299 { | |
300 SourceTile& source = AccessSourceTile(MapTargetToSourceLocation(tileX, tileY)); | |
301 const Orthanc::ImageAccessor& tile = source.GetDecodedTile(); | |
0 | 302 |
154 | 303 CheckTileSize(tile); |
0 | 304 |
154 | 305 assert(sourceTileWidth_ % targetTileWidth_ == 0 && |
306 sourceTileHeight_ % targetTileHeight_ == 0); | |
0 | 307 |
154 | 308 unsigned int xx = tileX % (sourceTileWidth_ / targetTileWidth_); |
309 unsigned int yy = tileY % (sourceTileHeight_ / targetTileHeight_); | |
0 | 310 |
154 | 311 const uint8_t* bytes = |
312 reinterpret_cast<const uint8_t*>(tile.GetConstRow(yy * targetTileHeight_)) + | |
313 GetBytesPerPixel(tile.GetFormat()) * xx * targetTileWidth_; | |
0 | 314 |
154 | 315 target.AssignReadOnly(tile.GetFormat(), |
316 targetTileWidth_, | |
317 targetTileHeight_, | |
318 tile.GetPitch(), bytes); | |
319 } | |
0 | 320 } |
321 } |