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annotate OrthancFramework/Sources/Images/ImageAccessor.h @ 4564:5a0adc1c19a9 db-changes

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avoid copy of objects in ServerIndex
author Sebastien Jodogne <s.jodogne@gmail.com>
date Mon, 08 Mar 2021 11:08:03 +0100
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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 * Copyright (C) 2017-2021 Osimis S.A., Belgium
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6 *
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7 * This program is free software: you can redistribute it and/or
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8 * modify it under the terms of the GNU Lesser General Public License
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9 * as published by the Free Software Foundation, either version 3 of
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10 * the License, or (at your option) any later version.
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11 *
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12 * This program is distributed in the hope that it will be useful, but
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13 * WITHOUT ANY WARRANTY; without even the implied warranty of
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14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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15 * Lesser General Public License for more details.
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16 *
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17 * You should have received a copy of the GNU Lesser General Public
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18 * License along with this program. If not, see
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19 * <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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25 #include "../Compatibility.h"
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26 #include "../Enumerations.h"
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27
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28 #include <string>
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29 #include <stdint.h>
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30 #include <boost/noncopyable.hpp>
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31
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32 namespace Orthanc
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33 {
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34 class ORTHANC_PUBLIC ImageAccessor : public boost::noncopyable
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35 {
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36 private:
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37 template <PixelFormat Format>
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38 friend struct ImageTraits;
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39
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40 bool readOnly_;
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41 PixelFormat format_;
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42 unsigned int width_;
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43 unsigned int height_;
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44 unsigned int pitch_;
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45 uint8_t *buffer_;
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46
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47 template <typename T>
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48 const T& GetPixelUnchecked(unsigned int x,
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49 unsigned int y) const
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50 {
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51 const uint8_t* row = reinterpret_cast<const uint8_t*>(buffer_) + y * pitch_;
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52 return reinterpret_cast<const T*>(row) [x];
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53 }
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54
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55
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56 template <typename T>
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57 T& GetPixelUnchecked(unsigned int x,
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58 unsigned int y)
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59 {
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60 uint8_t* row = reinterpret_cast<uint8_t*>(buffer_) + y * pitch_;
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61 return reinterpret_cast<T*>(row) [x];
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62 }
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63
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64 #if ORTHANC_BUILDING_FRAMEWORK_LIBRARY == 1
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65 // Alias for binary compatibility with Orthanc Framework 1.7.2 => don't use it anymore
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66 void* GetBuffer() const;
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67 void* GetRow(unsigned int y) const;
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68 #endif
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69
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70 public:
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71 ImageAccessor();
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72
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73 virtual ~ImageAccessor();
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74
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75 bool IsReadOnly() const;
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76
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77 PixelFormat GetFormat() const;
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78
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79 unsigned int GetBytesPerPixel() const;
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80
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81 unsigned int GetWidth() const;
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82
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83 unsigned int GetHeight() const;
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84
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85 unsigned int GetPitch() const;
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86
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87 unsigned int GetSize() const;
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88
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89 const void* GetConstBuffer() const;
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90
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91 void* GetBuffer();
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93 const void* GetConstRow(unsigned int y) const;
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94
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95 void* GetRow(unsigned int y);
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96
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97 void AssignEmpty(PixelFormat format);
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98
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99 void AssignReadOnly(PixelFormat format,
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100 unsigned int width,
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101 unsigned int height,
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102 unsigned int pitch,
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103 const void *buffer);
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104
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105 void GetReadOnlyAccessor(ImageAccessor& target) const;
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106
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107 void AssignWritable(PixelFormat format,
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108 unsigned int width,
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109 unsigned int height,
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110 unsigned int pitch,
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111 void *buffer);
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112
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113 void GetWriteableAccessor(ImageAccessor& target) const;
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114
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115 void ToMatlabString(std::string& target) const;
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116
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117 void GetRegion(ImageAccessor& accessor,
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118 unsigned int x,
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119 unsigned int y,
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120 unsigned int width,
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121 unsigned int height) const;
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122
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123 void SetFormat(PixelFormat format);
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124 };
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125 }