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annotate OrthancFramework/Sources/Images/ImageAccessor.h @ 4181:b416b6bf129b

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clarification of sdk doc about deadlocks
author Sebastien Jodogne <s.jodogne@gmail.com>
date Tue, 08 Sep 2020 09:16:33 +0200
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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) 2017-2020 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 "../Enumerations.h"
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26
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27 #include <string>
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28 #include <stdint.h>
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29 #include <boost/noncopyable.hpp>
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30
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31 namespace Orthanc
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32 {
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33 class ORTHANC_PUBLIC ImageAccessor : public boost::noncopyable
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34 {
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35 private:
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36 template <Orthanc::PixelFormat Format>
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37 friend struct ImageTraits;
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38
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39 bool readOnly_;
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40 PixelFormat format_;
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41 unsigned int width_;
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42 unsigned int height_;
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43 unsigned int pitch_;
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44 uint8_t *buffer_;
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45
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46 template <typename T>
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47 const T& GetPixelUnchecked(unsigned int x,
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48 unsigned int y) const
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49 {
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50 const uint8_t* row = reinterpret_cast<const uint8_t*>(buffer_) + y * pitch_;
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51 return reinterpret_cast<const T*>(row) [x];
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52 }
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53
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54
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55 template <typename T>
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56 T& GetPixelUnchecked(unsigned int x,
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57 unsigned int y)
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58 {
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59 uint8_t* row = reinterpret_cast<uint8_t*>(buffer_) + y * pitch_;
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60 return reinterpret_cast<T*>(row) [x];
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61 }
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62
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63 public:
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64 ImageAccessor()
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65 {
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66 AssignEmpty(PixelFormat_Grayscale8);
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67 }
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68
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69 virtual ~ImageAccessor()
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70 {
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71 }
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72
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73 bool IsReadOnly() const
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74 {
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75 return readOnly_;
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76 }
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77
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78 PixelFormat GetFormat() const
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79 {
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80 return format_;
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81 }
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82
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83 unsigned int GetBytesPerPixel() const
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84 {
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85 return ::Orthanc::GetBytesPerPixel(format_);
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86 }
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87
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88 unsigned int GetWidth() const
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89 {
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90 return width_;
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91 }
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92
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93 unsigned int GetHeight() const
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94 {
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95 return height_;
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96 }
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97
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98 unsigned int GetPitch() const
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99 {
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100 return pitch_;
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101 }
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102
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103 unsigned int GetSize() const
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104 {
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105 return GetHeight() * GetPitch();
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106 }
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107
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108 const void* GetConstBuffer() const
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109 {
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110 return buffer_;
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111 }
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112
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113 void* GetBuffer() const;
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114
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115 const void* GetConstRow(unsigned int y) const;
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116
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117 void* GetRow(unsigned int y) const;
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118
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119 void AssignEmpty(PixelFormat format);
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120
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121 void AssignReadOnly(PixelFormat format,
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122 unsigned int width,
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123 unsigned int height,
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124 unsigned int pitch,
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125 const void *buffer);
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126
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127 void GetReadOnlyAccessor(ImageAccessor& target) const
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128 {
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129 target.AssignReadOnly(format_, width_, height_, pitch_, buffer_);
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130 }
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131
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132 void AssignWritable(PixelFormat format,
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133 unsigned int width,
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134 unsigned int height,
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135 unsigned int pitch,
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136 void *buffer);
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137
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138 void GetWriteableAccessor(ImageAccessor& target) const;
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139
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140 void ToMatlabString(std::string& target) const;
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141
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142 void GetRegion(ImageAccessor& accessor,
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143 unsigned int x,
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144 unsigned int y,
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145 unsigned int width,
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146 unsigned int height) const;
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a89ca69ec1d1 ImageAccessor::SetFormat
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147
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148 void SetFormat(PixelFormat format);
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149 };
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150 }