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1 /**
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2 * Orthanc - A Lightweight, RESTful DICOM Store
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3 * Copyright (C) 2012-2016 Sebastien Jodogne, Medical Physics
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4 * Department, University Hospital of Liege, Belgium
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5 *
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6 * This program is free software: you can redistribute it and/or
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7 * modify it under the terms of the GNU Affero General Public License
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8 * as published by the Free Software Foundation, either version 3 of
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9 * the License, or (at your option) any later version.
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10 *
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11 * This program is distributed in the hope that it will be useful, but
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12 * WITHOUT ANY WARRANTY; without even the implied warranty of
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13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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14 * Affero General Public License for more details.
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15 *
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16 * You should have received a copy of the GNU Affero General Public License
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17 * along with this program. If not, see <http://www.gnu.org/licenses/>.
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18 **/
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19
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20
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21 #pragma once
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22
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23 #include "../Inputs/ITiledPyramid.h"
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24 #include "../DicomizerParameters.h"
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25
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26 #include <map>
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27 #include <memory>
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28
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29 namespace OrthancWSI
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30 {
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31 // This class is not thread-safe
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32 class PyramidReader : public boost::noncopyable
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33 {
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34 private:
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35 class SourceTile;
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36
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37 typedef std::pair<unsigned int, unsigned int> Location;
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38 typedef std::map<Location, SourceTile*> Cache;
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39
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40 ITiledPyramid& source_;
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41 unsigned int level_;
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42 unsigned int levelWidth_;
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43 unsigned int levelHeight_;
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44 unsigned int sourceTileWidth_;
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45 unsigned int sourceTileHeight_;
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46 unsigned int targetTileWidth_;
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47 unsigned int targetTileHeight_;
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48 const DicomizerParameters& parameters_;
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49
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50 Cache cache_;
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51
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52 std::auto_ptr<Orthanc::ImageAccessor> outside_;
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53
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54
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55 Orthanc::ImageAccessor& GetOutsideTile();
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56
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57 void CheckTileSize(const Orthanc::ImageAccessor& tile) const;
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58
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59 void CheckTileSize(const std::string& tile) const;
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60
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61 SourceTile& AccessSourceTile(const Location& location);
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62
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63 Location MapTargetToSourceLocation(unsigned int tileX,
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64 unsigned int tileY);
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65
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66 public:
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67 PyramidReader(ITiledPyramid& source,
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68 unsigned int level,
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69 unsigned int targetTileWidth,
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70 unsigned int targetTileHeight,
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71 const DicomizerParameters& parameters);
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72
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73 ~PyramidReader();
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74
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75 const DicomizerParameters& GetParameters() const
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76 {
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77 return parameters_;
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78 }
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79
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80 ImageCompression GetImageCompression() const
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81 {
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82 return source_.GetImageCompression();
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83 }
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84
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85 Orthanc::PixelFormat GetPixelFormat() const
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86 {
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87 return source_.GetPixelFormat();
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88 }
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89
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90 const std::string* GetRawTile(unsigned int tileX,
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91 unsigned int tileY);
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92
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93 Orthanc::ImageAccessor GetDecodedTile(unsigned int tileX,
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94 unsigned int tileY);
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95 };
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96 }
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