Mercurial > hg > orthanc-wsi
annotate Framework/Algorithms/PyramidReader.cpp @ 59:7a3853d51c45
Move "Framework/Orthanc/" as "Resources/Orthanc/"
| author | Sebastien Jodogne <s.jodogne@gmail.com> |
|---|---|
| date | Fri, 25 Nov 2016 16:34:34 +0100 |
| parents | 91fc9583b2de |
| 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 "../PrecompiledHeadersWSI.h" |
| 0 | 22 #include "PyramidReader.h" |
| 23 | |
| 24 #include "../ImageToolbox.h" | |
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25 #include "../../Resources/Orthanc/Core/Logging.h" |
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26 #include "../../Resources/Orthanc/Core/OrthancException.h" |
| 0 | 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 } |