Mercurial > hg > orthanc-wsi
annotate Framework/Algorithms/PyramidReader.cpp @ 57:91fc9583b2de
big refactoring to support sparse tiling
author | Sebastien Jodogne <s.jodogne@gmail.com> |
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date | Thu, 24 Nov 2016 17:48:24 +0100 |
parents | 7a88c614be04 |
children | 7a3853d51c45 |
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 | |
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21 #include "../PrecompiledHeadersWSI.h" |
0 | 22 #include "PyramidReader.h" |
23 | |
24 #include "../ImageToolbox.h" | |
25 #include "../Orthanc/Core/Logging.h" | |
26 #include "../Orthanc/Core/OrthancException.h" | |
27 | |
28 #include <cassert> | |
29 | |
30 namespace OrthancWSI | |
31 { | |
32 class PyramidReader::SourceTile : public boost::noncopyable | |
33 { | |
34 private: | |
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35 PyramidReader& that_; |
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36 unsigned int tileX_; |
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37 unsigned int tileY_; |
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38 bool hasRawTile_; |
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39 std::string rawTile_; |
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40 ImageCompression rawTileCompression_; |
0 | 41 |
42 std::auto_ptr<Orthanc::ImageAccessor> decoded_; | |
43 | |
44 bool IsRepaintNeeded() const | |
45 { | |
46 return (that_.parameters_.IsRepaintBackground() && | |
47 ((tileX_ + 1) * that_.sourceTileWidth_ > that_.levelWidth_ || | |
48 (tileY_ + 1) * that_.sourceTileHeight_ > that_.levelHeight_)); | |
49 } | |
50 | |
51 void RepaintBackground() | |
52 { | |
53 assert(decoded_.get() != NULL); | |
54 LOG(INFO) << "Repainting background of tile (" | |
55 << tileX_ << "," << tileY_ << ") at level " << that_.level_; | |
56 | |
57 if ((tileY_ + 1) * that_.sourceTileHeight_ > that_.levelHeight_) | |
58 { | |
59 // Bottom overflow | |
60 assert(tileY_ * that_.sourceTileHeight_ < that_.levelHeight_); | |
61 | |
62 unsigned int bottom = that_.levelHeight_ - tileY_ * that_.sourceTileHeight_; | |
63 Orthanc::ImageAccessor a = decoded_->GetRegion(0, bottom, | |
64 that_.sourceTileWidth_, | |
65 that_.sourceTileHeight_ - bottom); | |
66 ImageToolbox::Set(a, | |
67 that_.parameters_.GetBackgroundColorRed(), | |
68 that_.parameters_.GetBackgroundColorGreen(), | |
69 that_.parameters_.GetBackgroundColorBlue()); | |
70 | |
71 } | |
72 | |
73 if ((tileX_ + 1) * that_.sourceTileWidth_ > that_.levelWidth_) | |
74 { | |
75 // Right overflow | |
76 assert(tileX_ * that_.sourceTileWidth_ < that_.levelWidth_); | |
77 | |
78 unsigned int right = that_.levelWidth_ - tileX_ * that_.sourceTileWidth_; | |
79 Orthanc::ImageAccessor a = decoded_->GetRegion(right, 0, | |
80 that_.sourceTileWidth_ - right, | |
81 that_.sourceTileHeight_); | |
82 ImageToolbox::Set(a, | |
83 that_.parameters_.GetBackgroundColorRed(), | |
84 that_.parameters_.GetBackgroundColorGreen(), | |
85 that_.parameters_.GetBackgroundColorBlue()); | |
86 } | |
87 } | |
88 | |
89 | |
90 public: | |
91 SourceTile(PyramidReader& that, | |
92 unsigned int tileX, | |
93 unsigned int tileY) : | |
94 that_(that), | |
95 tileX_(tileX), | |
96 tileY_(tileY) | |
97 { | |
98 if (!that_.parameters_.IsForceReencode() && | |
99 !IsRepaintNeeded() && | |
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100 that_.source_.ReadRawTile(rawTile_, rawTileCompression_, that_.level_, tileX, tileY)) |
0 | 101 { |
102 hasRawTile_ = true; | |
103 } | |
104 else | |
105 { | |
106 hasRawTile_ = false; | |
107 decoded_.reset(that_.source_.DecodeTile(that_.level_, tileX, tileY)); | |
108 if (decoded_.get() == NULL) | |
109 { | |
110 throw Orthanc::OrthancException(Orthanc::ErrorCode_InternalError); | |
111 } | |
112 | |
113 RepaintBackground(); | |
114 } | |
115 } | |
116 | |
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117 bool HasRawTile(ImageCompression& compression) const |
0 | 118 { |
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119 if (hasRawTile_) |
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120 { |
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121 compression = rawTileCompression_; |
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122 return true; |
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123 } |
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124 else |
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125 { |
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126 return false; |
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127 } |
0 | 128 } |
129 | |
130 const std::string& GetRawTile() const | |
131 { | |
132 if (hasRawTile_) | |
133 { | |
134 return rawTile_; | |
135 } | |
136 else | |
137 { | |
138 throw Orthanc::OrthancException(Orthanc::ErrorCode_InternalError); | |
139 } | |
140 } | |
141 | |
142 const Orthanc::ImageAccessor& GetDecodedTile() | |
143 { | |
144 if (decoded_.get() == NULL) | |
145 { | |
146 if (!hasRawTile_) | |
147 { | |
148 throw Orthanc::OrthancException(Orthanc::ErrorCode_InternalError); | |
149 } | |
150 | |
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151 decoded_.reset(ImageToolbox::DecodeTile(rawTile_, rawTileCompression_)); |
0 | 152 if (decoded_.get() == NULL) |
153 { | |
154 throw Orthanc::OrthancException(Orthanc::ErrorCode_InternalError); | |
155 } | |
156 | |
157 RepaintBackground(); | |
158 } | |
159 | |
160 return *decoded_; | |
161 } | |
162 }; | |
163 | |
164 | |
165 Orthanc::ImageAccessor& PyramidReader::GetOutsideTile() | |
166 { | |
167 if (outside_.get() == NULL) | |
168 { | |
169 outside_.reset(ImageToolbox::Allocate(source_.GetPixelFormat(), targetTileWidth_, targetTileHeight_)); | |
170 ImageToolbox::Set(*outside_, | |
171 parameters_.GetBackgroundColorRed(), | |
172 parameters_.GetBackgroundColorGreen(), | |
173 parameters_.GetBackgroundColorBlue()); | |
174 } | |
175 | |
176 return *outside_; | |
177 } | |
178 | |
179 | |
180 void PyramidReader::CheckTileSize(const Orthanc::ImageAccessor& tile) const | |
181 { | |
182 if (tile.GetWidth() != sourceTileWidth_ || | |
183 tile.GetHeight() != sourceTileHeight_) | |
184 { | |
185 LOG(ERROR) << "One tile in the input image has size " << tile.GetWidth() << "x" << tile.GetHeight() | |
186 << " instead of required " << source_.GetTileWidth() << "x" << source_.GetTileHeight(); | |
187 throw Orthanc::OrthancException(Orthanc::ErrorCode_IncompatibleImageSize); | |
188 } | |
189 } | |
190 | |
191 | |
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192 void PyramidReader::CheckTileSize(const std::string& tile, |
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193 ImageCompression compression) const |
0 | 194 { |
195 if (parameters_.IsSafetyCheck()) | |
196 { | |
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197 std::auto_ptr<Orthanc::ImageAccessor> decoded(ImageToolbox::DecodeTile(tile, compression)); |
0 | 198 CheckTileSize(*decoded); |
199 } | |
200 } | |
201 | |
202 | |
203 PyramidReader::SourceTile& PyramidReader::AccessSourceTile(const Location& location) | |
204 { | |
205 Cache::iterator found = cache_.find(location); | |
206 if (found != cache_.end()) | |
207 { | |
208 return *found->second; | |
209 } | |
210 else | |
211 { | |
212 SourceTile *tile = new SourceTile(*this, location.first, location.second); | |
213 cache_[location] = tile; | |
214 return *tile; | |
215 } | |
216 } | |
217 | |
218 | |
219 PyramidReader::Location PyramidReader::MapTargetToSourceLocation(unsigned int tileX, | |
220 unsigned int tileY) | |
221 { | |
222 return std::make_pair(tileX / (sourceTileWidth_ / targetTileWidth_), | |
223 tileY / (sourceTileHeight_ / targetTileHeight_)); | |
224 } | |
225 | |
226 | |
227 PyramidReader::PyramidReader(ITiledPyramid& source, | |
228 unsigned int level, | |
229 unsigned int targetTileWidth, | |
230 unsigned int targetTileHeight, | |
231 const DicomizerParameters& parameters) : | |
232 source_(source), | |
233 level_(level), | |
234 levelWidth_(source.GetLevelWidth(level)), | |
235 levelHeight_(source.GetLevelHeight(level)), | |
236 sourceTileWidth_(source.GetTileWidth()), | |
237 sourceTileHeight_(source.GetTileHeight()), | |
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238 targetTileWidth_(targetTileWidth), |
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239 targetTileHeight_(targetTileHeight), |
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240 parameters_(parameters) |
0 | 241 { |
242 if (sourceTileWidth_ % targetTileWidth_ != 0 || | |
243 sourceTileHeight_ % targetTileHeight_ != 0) | |
244 { | |
245 LOG(ERROR) << "When resampling the tile size, it must be a integer divisor of the original tile size"; | |
246 throw Orthanc::OrthancException(Orthanc::ErrorCode_IncompatibleImageSize); | |
247 } | |
248 } | |
249 | |
250 | |
251 PyramidReader::~PyramidReader() | |
252 { | |
253 for (Cache::iterator it = cache_.begin(); it != cache_.end(); ++it) | |
254 { | |
255 assert(it->second != NULL); | |
256 delete it->second; | |
257 } | |
258 } | |
259 | |
260 | |
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261 const std::string* PyramidReader::GetRawTile(ImageCompression& compression, |
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262 unsigned int tileX, |
0 | 263 unsigned int tileY) |
264 { | |
265 if (sourceTileWidth_ != targetTileWidth_ || | |
266 sourceTileHeight_ != targetTileHeight_) | |
267 { | |
268 return NULL; | |
269 } | |
270 | |
271 SourceTile& source = AccessSourceTile(MapTargetToSourceLocation(tileX, tileY)); | |
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272 |
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273 if (source.HasRawTile(compression)) |
0 | 274 { |
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275 CheckTileSize(source.GetRawTile(), compression); |
0 | 276 return &source.GetRawTile(); |
277 } | |
278 else | |
279 { | |
280 return NULL; | |
281 } | |
282 } | |
283 | |
284 | |
285 Orthanc::ImageAccessor PyramidReader::GetDecodedTile(unsigned int tileX, | |
286 unsigned int tileY) | |
287 { | |
288 if (tileX * targetTileWidth_ >= levelWidth_ || | |
289 tileY * targetTileHeight_ >= levelHeight_) | |
290 { | |
291 // Accessing a tile out of the source image | |
292 return GetOutsideTile(); | |
293 } | |
294 | |
295 SourceTile& source = AccessSourceTile(MapTargetToSourceLocation(tileX, tileY)); | |
296 const Orthanc::ImageAccessor& tile = source.GetDecodedTile(); | |
297 | |
298 CheckTileSize(tile); | |
299 | |
300 assert(sourceTileWidth_ % targetTileWidth_ == 0 && | |
301 sourceTileHeight_ % targetTileHeight_ == 0); | |
302 | |
303 unsigned int xx = tileX % (sourceTileWidth_ / targetTileWidth_); | |
304 unsigned int yy = tileY % (sourceTileHeight_ / targetTileHeight_); | |
305 | |
306 const uint8_t* bytes = | |
307 reinterpret_cast<const uint8_t*>(tile.GetConstRow(yy * targetTileHeight_)) + | |
308 GetBytesPerPixel(tile.GetFormat()) * xx * targetTileWidth_; | |
309 | |
310 Orthanc::ImageAccessor region; | |
311 region.AssignReadOnly(tile.GetFormat(), | |
312 targetTileWidth_, | |
313 targetTileHeight_, | |
314 tile.GetPitch(), bytes); | |
315 | |
316 return region; | |
317 } | |
318 } |