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annotate Core/Images/ImageAccessor.h @ 3349:ef18ea68a362

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author Alain Mazy <alain@mazy.be>
date Thu, 18 Apr 2019 15:52:56 +0200
parents 4e43e67f8ecf
children 94f4a18a79cc
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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) 2017-2019 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 General Public License as
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9 * published by the Free Software Foundation, either version 3 of the
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10 * License, or (at your option) any later version.
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11 *
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12 * In addition, as a special exception, the copyright holders of this
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13 * program give permission to link the code of its release with the
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14 * OpenSSL project's "OpenSSL" library (or with modified versions of it
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15 * that use the same license as the "OpenSSL" library), and distribute
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16 * the linked executables. You must obey the GNU General Public License
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17 * in all respects for all of the code used other than "OpenSSL". If you
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18 * modify file(s) with this exception, you may extend this exception to
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19 * your version of the file(s), but you are not obligated to do so. If
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20 * you do not wish to do so, delete this exception statement from your
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21 * version. If you delete this exception statement from all source files
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22 * in the program, then also delete it here.
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23 *
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24 * This program is distributed in the hope that it will be useful, but
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25 * WITHOUT ANY WARRANTY; without even the implied warranty of
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26 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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27 * General Public License for more details.
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28 *
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29 * You should have received a copy of the GNU General Public License
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30 * along with this program. If not, see <http://www.gnu.org/licenses/>.
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31 **/
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32
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33
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34 #pragma once
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35
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36 #include "../Enumerations.h"
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37
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38 #include <string>
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39 #include <stdint.h>
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40 #include <boost/noncopyable.hpp>
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41
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42 namespace Orthanc
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43 {
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44 class ImageAccessor : public boost::noncopyable
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45 {
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46 private:
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47 template <Orthanc::PixelFormat Format>
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48 friend struct ImageTraits;
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49
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50 bool readOnly_;
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51 PixelFormat format_;
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52 unsigned int width_;
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53 unsigned int height_;
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54 unsigned int pitch_;
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55 uint8_t *buffer_;
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56
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57 template <typename T>
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58 const T& GetPixelUnchecked(unsigned int x,
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59 unsigned int y) const
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60 {
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61 const uint8_t* row = reinterpret_cast<const uint8_t*>(buffer_) + y * pitch_;
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62 return reinterpret_cast<const T*>(row) [x];
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63 }
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64
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65
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66 template <typename T>
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67 T& GetPixelUnchecked(unsigned int x,
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68 unsigned int y)
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69 {
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70 uint8_t* row = reinterpret_cast<uint8_t*>(buffer_) + y * pitch_;
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71 return reinterpret_cast<T*>(row) [x];
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72 }
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73
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74 public:
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75 ImageAccessor()
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76 {
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77 AssignEmpty(PixelFormat_Grayscale8);
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78 }
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79
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80 virtual ~ImageAccessor()
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81 {
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82 }
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83
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84 bool IsReadOnly() const
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85 {
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86 return readOnly_;
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87 }
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88
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89 PixelFormat GetFormat() const
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90 {
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91 return format_;
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92 }
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93
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94 unsigned int GetBytesPerPixel() const
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95 {
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96 return ::Orthanc::GetBytesPerPixel(format_);
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97 }
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98
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99 unsigned int GetWidth() const
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100 {
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101 return width_;
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102 }
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103
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104 unsigned int GetHeight() const
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105 {
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106 return height_;
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107 }
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108
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109 unsigned int GetPitch() const
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110 {
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111 return pitch_;
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112 }
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113
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114 unsigned int GetSize() const
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115 {
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116 return GetHeight() * GetPitch();
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117 }
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118
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119 const void* GetConstBuffer() const
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120 {
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121 return buffer_;
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122 }
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123
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124 void* GetBuffer() const;
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125
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126 const void* GetConstRow(unsigned int y) const;
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127
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128 void* GetRow(unsigned int y) const;
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129
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130 void AssignEmpty(PixelFormat format);
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131
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132 void AssignReadOnly(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 const void *buffer);
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137
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138 void GetReadOnlyAccessor(ImageAccessor& target) const
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139 {
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140 target.AssignReadOnly(format_, width_, height_, pitch_, buffer_);
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141 }
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142
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143 void AssignWritable(PixelFormat format,
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144 unsigned int width,
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145 unsigned int height,
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146 unsigned int pitch,
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147 void *buffer);
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148
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149 void GetWriteableAccessor(ImageAccessor& target) const;
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150
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151 void ToMatlabString(std::string& target) const;
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152
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153 void GetRegion(ImageAccessor& accessor,
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154 unsigned int x,
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155 unsigned int y,
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156 unsigned int width,
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157 unsigned int height) const;
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158
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159 void SetFormat(PixelFormat format);
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160 };
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161 }