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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 "PyramidWithRawTiles.h"
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24
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25 #include <tiff.h>
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26 #include <tiffio.h>
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27 #include <vector>
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28 #include <boost/thread.hpp>
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29
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30 namespace OrthancWSI
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31 {
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32 class HierarchicalTiff : public PyramidWithRawTiles
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33 {
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34 private:
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35 struct Level
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36 {
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37 tdir_t directory_;
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38 unsigned int width_;
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39 unsigned int height_;
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40 std::string headers_;
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41
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42 Level(TIFF* tiff,
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43 tdir_t directory,
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44 unsigned int width,
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45 unsigned int height);
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46 };
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47
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48 struct Comparator;
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49
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50 boost::mutex mutex_;
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51 TIFF* tiff_;
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52 Orthanc::PixelFormat pixelFormat_;
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53 ImageCompression compression_;
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54 unsigned int tileWidth_;
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55 unsigned int tileHeight_;
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56 std::vector<Level> levels_;
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57
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58 void Finalize();
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59
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60 void CheckLevel(unsigned int level) const;
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61
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62 bool GetCurrentCompression(ImageCompression& compression);
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63
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64 bool GetCurrentPixelFormat(Orthanc::PixelFormat& pixelFormat,
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65 ImageCompression compression);
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66
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67 bool Initialize();
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68
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69 public:
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70 HierarchicalTiff(const std::string& path);
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71
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72 virtual ~HierarchicalTiff()
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73 {
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74 Finalize();
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75 }
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76
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77 virtual unsigned int GetLevelCount() const
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78 {
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79 return levels_.size();
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80 }
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81
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82 virtual unsigned int GetLevelWidth(unsigned int level) const;
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83
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84 virtual unsigned int GetLevelHeight(unsigned int level) const;
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85
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86 virtual unsigned int GetTileWidth() const
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87 {
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88 return tileWidth_;
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89 }
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90
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91 virtual unsigned int GetTileHeight() const
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92 {
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93 return tileHeight_;
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94 }
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95
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96 virtual bool ReadRawTile(std::string& tile,
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97 unsigned int level,
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98 unsigned int tileX,
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99 unsigned int tileY);
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100
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101 virtual ImageCompression GetImageCompression() const
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102 {
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103 return compression_;
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104 }
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105
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106 virtual Orthanc::PixelFormat GetPixelFormat() const
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107 {
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108 return pixelFormat_;
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109 }
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110 };
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111 }
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