Mercurial > hg > orthanc-wsi
annotate Framework/Algorithms/PyramidReader.cpp @ 149:954f45b6e60c
updated bibtex
| author | Sebastien Jodogne <s.jodogne@gmail.com> |
|---|---|
| date | Fri, 04 May 2018 10:33:44 +0200 |
| parents | a0f9a3df1110 |
| 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 "../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_; | |
| 64 Orthanc::ImageAccessor a = decoded_->GetRegion(0, bottom, | |
| 65 that_.sourceTileWidth_, | |
| 66 that_.sourceTileHeight_ - bottom); | |
| 67 ImageToolbox::Set(a, | |
| 68 that_.parameters_.GetBackgroundColorRed(), | |
| 69 that_.parameters_.GetBackgroundColorGreen(), | |
| 70 that_.parameters_.GetBackgroundColorBlue()); | |
| 71 | |
| 72 } | |
| 73 | |
| 74 if ((tileX_ + 1) * that_.sourceTileWidth_ > that_.levelWidth_) | |
| 75 { | |
| 76 // Right overflow | |
| 77 assert(tileX_ * that_.sourceTileWidth_ < that_.levelWidth_); | |
| 78 | |
| 79 unsigned int right = that_.levelWidth_ - tileX_ * that_.sourceTileWidth_; | |
| 80 Orthanc::ImageAccessor a = decoded_->GetRegion(right, 0, | |
| 81 that_.sourceTileWidth_ - right, | |
| 82 that_.sourceTileHeight_); | |
| 83 ImageToolbox::Set(a, | |
| 84 that_.parameters_.GetBackgroundColorRed(), | |
| 85 that_.parameters_.GetBackgroundColorGreen(), | |
| 86 that_.parameters_.GetBackgroundColorBlue()); | |
| 87 } | |
| 88 } | |
| 89 | |
| 90 | |
| 91 public: | |
| 92 SourceTile(PyramidReader& that, | |
| 93 unsigned int tileX, | |
| 94 unsigned int tileY) : | |
| 95 that_(that), | |
| 96 tileX_(tileX), | |
| 97 tileY_(tileY) | |
| 98 { | |
| 99 if (!that_.parameters_.IsForceReencode() && | |
| 100 !IsRepaintNeeded() && | |
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101 that_.source_.ReadRawTile(rawTile_, rawTileCompression_, that_.level_, tileX, tileY)) |
| 0 | 102 { |
| 103 hasRawTile_ = true; | |
| 104 } | |
| 105 else | |
| 106 { | |
| 107 hasRawTile_ = false; | |
| 108 decoded_.reset(that_.source_.DecodeTile(that_.level_, tileX, tileY)); | |
| 109 if (decoded_.get() == NULL) | |
| 110 { | |
| 111 throw Orthanc::OrthancException(Orthanc::ErrorCode_InternalError); | |
| 112 } | |
| 113 | |
| 114 RepaintBackground(); | |
| 115 } | |
| 116 } | |
| 117 | |
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118 bool HasRawTile(ImageCompression& compression) const |
| 0 | 119 { |
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120 if (hasRawTile_) |
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121 { |
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122 compression = rawTileCompression_; |
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123 return true; |
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124 } |
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125 else |
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126 { |
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127 return false; |
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128 } |
| 0 | 129 } |
| 130 | |
| 131 const std::string& GetRawTile() const | |
| 132 { | |
| 133 if (hasRawTile_) | |
| 134 { | |
| 135 return rawTile_; | |
| 136 } | |
| 137 else | |
| 138 { | |
| 139 throw Orthanc::OrthancException(Orthanc::ErrorCode_InternalError); | |
| 140 } | |
| 141 } | |
| 142 | |
| 143 const Orthanc::ImageAccessor& GetDecodedTile() | |
| 144 { | |
| 145 if (decoded_.get() == NULL) | |
| 146 { | |
| 147 if (!hasRawTile_) | |
| 148 { | |
| 149 throw Orthanc::OrthancException(Orthanc::ErrorCode_InternalError); | |
| 150 } | |
| 151 | |
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152 decoded_.reset(ImageToolbox::DecodeTile(rawTile_, rawTileCompression_)); |
| 0 | 153 if (decoded_.get() == NULL) |
| 154 { | |
| 155 throw Orthanc::OrthancException(Orthanc::ErrorCode_InternalError); | |
| 156 } | |
| 157 | |
| 158 RepaintBackground(); | |
| 159 } | |
| 160 | |
| 161 return *decoded_; | |
| 162 } | |
| 163 }; | |
| 164 | |
| 165 | |
| 166 Orthanc::ImageAccessor& PyramidReader::GetOutsideTile() | |
| 167 { | |
| 168 if (outside_.get() == NULL) | |
| 169 { | |
| 170 outside_.reset(ImageToolbox::Allocate(source_.GetPixelFormat(), targetTileWidth_, targetTileHeight_)); | |
| 171 ImageToolbox::Set(*outside_, | |
| 172 parameters_.GetBackgroundColorRed(), | |
| 173 parameters_.GetBackgroundColorGreen(), | |
| 174 parameters_.GetBackgroundColorBlue()); | |
| 175 } | |
| 176 | |
| 177 return *outside_; | |
| 178 } | |
| 179 | |
| 180 | |
| 181 void PyramidReader::CheckTileSize(const Orthanc::ImageAccessor& tile) const | |
| 182 { | |
| 183 if (tile.GetWidth() != sourceTileWidth_ || | |
| 184 tile.GetHeight() != sourceTileHeight_) | |
| 185 { | |
| 186 LOG(ERROR) << "One tile in the input image has size " << tile.GetWidth() << "x" << tile.GetHeight() | |
| 187 << " instead of required " << source_.GetTileWidth() << "x" << source_.GetTileHeight(); | |
| 188 throw Orthanc::OrthancException(Orthanc::ErrorCode_IncompatibleImageSize); | |
| 189 } | |
| 190 } | |
| 191 | |
| 192 | |
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193 void PyramidReader::CheckTileSize(const std::string& tile, |
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194 ImageCompression compression) const |
| 0 | 195 { |
| 196 if (parameters_.IsSafetyCheck()) | |
| 197 { | |
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198 std::auto_ptr<Orthanc::ImageAccessor> decoded(ImageToolbox::DecodeTile(tile, compression)); |
| 0 | 199 CheckTileSize(*decoded); |
| 200 } | |
| 201 } | |
| 202 | |
| 203 | |
| 204 PyramidReader::SourceTile& PyramidReader::AccessSourceTile(const Location& location) | |
| 205 { | |
| 206 Cache::iterator found = cache_.find(location); | |
| 207 if (found != cache_.end()) | |
| 208 { | |
| 209 return *found->second; | |
| 210 } | |
| 211 else | |
| 212 { | |
| 213 SourceTile *tile = new SourceTile(*this, location.first, location.second); | |
| 214 cache_[location] = tile; | |
| 215 return *tile; | |
| 216 } | |
| 217 } | |
| 218 | |
| 219 | |
| 220 PyramidReader::Location PyramidReader::MapTargetToSourceLocation(unsigned int tileX, | |
| 221 unsigned int tileY) | |
| 222 { | |
| 223 return std::make_pair(tileX / (sourceTileWidth_ / targetTileWidth_), | |
| 224 tileY / (sourceTileHeight_ / targetTileHeight_)); | |
| 225 } | |
| 226 | |
| 227 | |
| 228 PyramidReader::PyramidReader(ITiledPyramid& source, | |
| 229 unsigned int level, | |
| 230 unsigned int targetTileWidth, | |
| 231 unsigned int targetTileHeight, | |
| 232 const DicomizerParameters& parameters) : | |
| 233 source_(source), | |
| 234 level_(level), | |
| 235 levelWidth_(source.GetLevelWidth(level)), | |
| 236 levelHeight_(source.GetLevelHeight(level)), | |
| 237 sourceTileWidth_(source.GetTileWidth()), | |
| 238 sourceTileHeight_(source.GetTileHeight()), | |
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239 targetTileWidth_(targetTileWidth), |
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240 targetTileHeight_(targetTileHeight), |
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241 parameters_(parameters) |
| 0 | 242 { |
| 243 if (sourceTileWidth_ % targetTileWidth_ != 0 || | |
| 244 sourceTileHeight_ % targetTileHeight_ != 0) | |
| 245 { | |
| 246 LOG(ERROR) << "When resampling the tile size, it must be a integer divisor of the original tile size"; | |
| 247 throw Orthanc::OrthancException(Orthanc::ErrorCode_IncompatibleImageSize); | |
| 248 } | |
| 249 } | |
| 250 | |
| 251 | |
| 252 PyramidReader::~PyramidReader() | |
| 253 { | |
| 254 for (Cache::iterator it = cache_.begin(); it != cache_.end(); ++it) | |
| 255 { | |
| 256 assert(it->second != NULL); | |
| 257 delete it->second; | |
| 258 } | |
| 259 } | |
| 260 | |
| 261 | |
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262 const std::string* PyramidReader::GetRawTile(ImageCompression& compression, |
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263 unsigned int tileX, |
| 0 | 264 unsigned int tileY) |
| 265 { | |
| 266 if (sourceTileWidth_ != targetTileWidth_ || | |
| 267 sourceTileHeight_ != targetTileHeight_) | |
| 268 { | |
| 269 return NULL; | |
| 270 } | |
| 271 | |
| 272 SourceTile& source = AccessSourceTile(MapTargetToSourceLocation(tileX, tileY)); | |
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273 |
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274 if (source.HasRawTile(compression)) |
| 0 | 275 { |
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276 CheckTileSize(source.GetRawTile(), compression); |
| 0 | 277 return &source.GetRawTile(); |
| 278 } | |
| 279 else | |
| 280 { | |
| 281 return NULL; | |
| 282 } | |
| 283 } | |
| 284 | |
| 285 | |
| 286 Orthanc::ImageAccessor PyramidReader::GetDecodedTile(unsigned int tileX, | |
| 287 unsigned int tileY) | |
| 288 { | |
| 289 if (tileX * targetTileWidth_ >= levelWidth_ || | |
| 290 tileY * targetTileHeight_ >= levelHeight_) | |
| 291 { | |
| 292 // Accessing a tile out of the source image | |
| 293 return GetOutsideTile(); | |
| 294 } | |
| 295 | |
| 296 SourceTile& source = AccessSourceTile(MapTargetToSourceLocation(tileX, tileY)); | |
| 297 const Orthanc::ImageAccessor& tile = source.GetDecodedTile(); | |
| 298 | |
| 299 CheckTileSize(tile); | |
| 300 | |
| 301 assert(sourceTileWidth_ % targetTileWidth_ == 0 && | |
| 302 sourceTileHeight_ % targetTileHeight_ == 0); | |
| 303 | |
| 304 unsigned int xx = tileX % (sourceTileWidth_ / targetTileWidth_); | |
| 305 unsigned int yy = tileY % (sourceTileHeight_ / targetTileHeight_); | |
| 306 | |
| 307 const uint8_t* bytes = | |
| 308 reinterpret_cast<const uint8_t*>(tile.GetConstRow(yy * targetTileHeight_)) + | |
| 309 GetBytesPerPixel(tile.GetFormat()) * xx * targetTileWidth_; | |
| 310 | |
| 311 Orthanc::ImageAccessor region; | |
| 312 region.AssignReadOnly(tile.GetFormat(), | |
| 313 targetTileWidth_, | |
| 314 targetTileHeight_, | |
| 315 tile.GetPitch(), bytes); | |
| 316 | |
| 317 return region; | |
| 318 } | |
| 319 } |