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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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254
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5 * Copyright (C) 2017-2023 Osimis S.A., Belgium
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6 * Copyright (C) 2021-2023 Sebastien Jodogne, ICTEAM UCLouvain, Belgium
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0
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7 *
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8 * This program is free software: you can redistribute it and/or
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9 * modify it under the terms of the GNU Affero General Public License
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10 * as published by the Free Software Foundation, either version 3 of
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11 * the License, or (at your option) any later version.
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12 *
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13 * This program is distributed in the hope that it will be useful, but
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14 * WITHOUT ANY WARRANTY; without even the implied warranty of
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15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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16 * Affero General Public License for more details.
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17 *
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18 * You should have received a copy of the GNU Affero General Public License
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19 * along with this program. If not, see <http://www.gnu.org/licenses/>.
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20 **/
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21
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22
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23 #pragma once
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24
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192
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25 #include <Images/ImageAccessor.h>
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26 #include <SharedLibrary.h>
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0
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27
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28 #include <vector>
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29
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30 namespace OrthancWSI
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31 {
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32 class OpenSlideLibrary : public boost::noncopyable
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33 {
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34 private:
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35 typedef void* (*FunctionClose) (void*);
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36 typedef int32_t (*FunctionGetLevelCount) (void*);
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37 typedef void (*FunctionGetLevelDimensions) (void*, int32_t, int64_t*, int64_t*);
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38 typedef double (*FunctionGetLevelDownsample) (void*, int32_t);
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39 typedef void* (*FunctionOpen) (const char*);
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40 typedef void (*FunctionReadRegion) (void*, uint32_t*, int64_t, int64_t, int32_t, int64_t, int64_t);
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41
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42 Orthanc::SharedLibrary library_;
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43 FunctionClose close_;
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44 FunctionGetLevelCount getLevelCount_;
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45 FunctionGetLevelDimensions getLevelDimensions_;
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46 FunctionGetLevelDownsample getLevelDownsample_;
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47 FunctionOpen open_;
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48 FunctionReadRegion readRegion_;
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49
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50 public:
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145
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51 explicit OpenSlideLibrary(const std::string& path);
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0
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52
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53 static OpenSlideLibrary& GetInstance();
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54
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55 static void Initialize(const std::string& path);
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56
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57 static void Finalize();
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58
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59 class Image : public boost::noncopyable
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60 {
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61 private:
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62 struct Level
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63 {
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64 unsigned int width_;
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65 unsigned int height_;
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66 double downsample_;
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67
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68 Level();
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69
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70 Level(int64_t width,
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71 int64_t height,
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72 double downsample);
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73 };
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74
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75 OpenSlideLibrary& that_;
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76 void* handle_;
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77 std::vector<Level> levels_;
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78
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79 void Initialize(const std::string& path);
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80
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81 void Close();
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82
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83 void CheckLevel(unsigned int level) const;
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84
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85 public:
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86 Image(OpenSlideLibrary& that,
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87 const std::string& path);
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88
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145
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89 explicit Image(const std::string& path);
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0
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90
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91 ~Image()
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92 {
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93 Close();
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94 }
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95
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96 unsigned int GetLevelCount() const
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97 {
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98 return levels_.size();
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99 }
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100
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101 double GetLevelDownsample(unsigned int level) const;
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102
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103 unsigned int GetLevelWidth(unsigned int level) const;
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104
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105 unsigned int GetLevelHeight(unsigned int level) const;
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106
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107 Orthanc::ImageAccessor* ReadRegion(unsigned int level,
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108 uint64_t x,
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109 uint64_t y,
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110 unsigned int width,
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111 unsigned int height);
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112 };
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113 };
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114 }
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