Mercurial > hg > orthanc
annotate Core/Images/ImageAccessor.cpp @ 3812:abd3a1d114c0 transcoding
transcoding to 1.2.840.10008.1.2.4.51
author | Sebastien Jodogne <s.jodogne@gmail.com> |
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date | Tue, 07 Apr 2020 13:54:57 +0200 |
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1 /** |
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2 * Orthanc - A Lightweight, RESTful DICOM Store |
1900 | 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 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 #include "../PrecompiledHeaders.h" |
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35 #include "ImageAccessor.h" |
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36 |
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37 #include "../Logging.h" |
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38 #include "../OrthancException.h" |
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39 #include "../ChunkedBuffer.h" |
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40 |
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41 #include <stdint.h> |
860 | 42 #include <cassert> |
1397 | 43 #include <boost/lexical_cast.hpp> |
44 | |
45 | |
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46 |
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47 namespace Orthanc |
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48 { |
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49 template <typename PixelType> |
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50 static void ToMatlabStringInternal(ChunkedBuffer& target, |
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51 const ImageAccessor& source) |
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52 { |
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53 target.AddChunk("double([ "); |
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54 |
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55 for (unsigned int y = 0; y < source.GetHeight(); y++) |
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56 { |
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57 const PixelType* p = reinterpret_cast<const PixelType*>(source.GetConstRow(y)); |
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58 |
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59 std::string s; |
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60 if (y > 0) |
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61 { |
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62 s = "; "; |
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63 } |
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64 |
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65 s.reserve(source.GetWidth() * 8); |
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66 |
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67 for (unsigned int x = 0; x < source.GetWidth(); x++, p++) |
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68 { |
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69 s += boost::lexical_cast<std::string>(static_cast<double>(*p)) + " "; |
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70 } |
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71 |
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72 target.AddChunk(s); |
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73 } |
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74 |
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75 target.AddChunk("])"); |
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76 } |
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77 |
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78 |
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79 static void RGB24ToMatlabString(ChunkedBuffer& target, |
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80 const ImageAccessor& source) |
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81 { |
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82 assert(source.GetFormat() == PixelFormat_RGB24); |
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83 |
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84 target.AddChunk("double(permute(reshape([ "); |
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85 |
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86 for (unsigned int y = 0; y < source.GetHeight(); y++) |
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87 { |
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88 const uint8_t* p = reinterpret_cast<const uint8_t*>(source.GetConstRow(y)); |
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89 |
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90 std::string s; |
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91 s.reserve(source.GetWidth() * 3 * 8); |
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92 |
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93 for (unsigned int x = 0; x < 3 * source.GetWidth(); x++, p++) |
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94 { |
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95 s += boost::lexical_cast<std::string>(static_cast<int>(*p)) + " "; |
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96 } |
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97 |
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98 target.AddChunk(s); |
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99 } |
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100 |
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101 target.AddChunk("], [ 3 " + boost::lexical_cast<std::string>(source.GetHeight()) + |
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102 " " + boost::lexical_cast<std::string>(source.GetWidth()) + " ]), [ 3 2 1 ]))"); |
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103 } |
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104 |
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105 |
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106 void* ImageAccessor::GetBuffer() const |
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107 { |
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108 if (readOnly_) |
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109 { |
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110 throw OrthancException(ErrorCode_ReadOnly, |
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111 "Trying to write to a read-only image"); |
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112 } |
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113 |
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114 return buffer_; |
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115 } |
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116 |
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117 |
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118 const void* ImageAccessor::GetConstRow(unsigned int y) const |
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119 { |
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120 if (buffer_ != NULL) |
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121 { |
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122 return buffer_ + y * pitch_; |
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123 } |
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124 else |
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125 { |
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126 return NULL; |
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127 } |
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128 } |
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129 |
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130 |
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131 void* ImageAccessor::GetRow(unsigned int y) const |
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132 { |
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133 if (readOnly_) |
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134 { |
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135 throw OrthancException(ErrorCode_ReadOnly, |
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136 "Trying to write to a read-only image"); |
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137 } |
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138 |
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139 if (buffer_ != NULL) |
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140 { |
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141 return buffer_ + y * pitch_; |
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142 } |
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143 else |
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144 { |
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145 return NULL; |
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146 } |
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147 } |
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148 |
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149 |
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150 void ImageAccessor::AssignEmpty(PixelFormat format) |
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151 { |
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152 readOnly_ = false; |
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153 format_ = format; |
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154 width_ = 0; |
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155 height_ = 0; |
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156 pitch_ = 0; |
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157 buffer_ = NULL; |
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158 } |
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159 |
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160 |
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161 void ImageAccessor::AssignReadOnly(PixelFormat format, |
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162 unsigned int width, |
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163 unsigned int height, |
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164 unsigned int pitch, |
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165 const void *buffer) |
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166 { |
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167 readOnly_ = true; |
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168 format_ = format; |
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169 width_ = width; |
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170 height_ = height; |
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171 pitch_ = pitch; |
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172 buffer_ = reinterpret_cast<uint8_t*>(const_cast<void*>(buffer)); |
860 | 173 |
1916 | 174 if (GetBytesPerPixel() * width_ > pitch_) |
175 { | |
176 throw OrthancException(ErrorCode_ParameterOutOfRange); | |
177 } | |
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178 } |
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179 |
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180 |
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181 void ImageAccessor::AssignWritable(PixelFormat format, |
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182 unsigned int width, |
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183 unsigned int height, |
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184 unsigned int pitch, |
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185 void *buffer) |
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186 { |
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187 readOnly_ = false; |
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188 format_ = format; |
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189 width_ = width; |
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190 height_ = height; |
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191 pitch_ = pitch; |
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192 buffer_ = reinterpret_cast<uint8_t*>(buffer); |
860 | 193 |
1916 | 194 if (GetBytesPerPixel() * width_ > pitch_) |
195 { | |
196 throw OrthancException(ErrorCode_ParameterOutOfRange); | |
197 } | |
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198 } |
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199 |
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200 |
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201 void ImageAccessor::GetWriteableAccessor(ImageAccessor& target) const |
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202 { |
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203 if (readOnly_) |
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204 { |
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205 throw OrthancException(ErrorCode_ReadOnly); |
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206 } |
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207 else |
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208 { |
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209 target.AssignWritable(format_, width_, height_, pitch_, buffer_); |
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210 } |
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211 } |
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212 |
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213 |
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214 void ImageAccessor::ToMatlabString(std::string& target) const |
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215 { |
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216 ChunkedBuffer buffer; |
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217 |
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218 switch (GetFormat()) |
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219 { |
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220 case PixelFormat_Grayscale8: |
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221 ToMatlabStringInternal<uint8_t>(buffer, *this); |
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222 break; |
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223 |
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224 case PixelFormat_Grayscale16: |
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225 ToMatlabStringInternal<uint16_t>(buffer, *this); |
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226 break; |
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227 |
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228 case PixelFormat_Grayscale32: |
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229 ToMatlabStringInternal<uint32_t>(buffer, *this); |
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230 break; |
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231 |
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232 case PixelFormat_Grayscale64: |
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233 ToMatlabStringInternal<uint64_t>(buffer, *this); |
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234 break; |
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235 |
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236 case PixelFormat_SignedGrayscale16: |
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237 ToMatlabStringInternal<int16_t>(buffer, *this); |
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238 break; |
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239 |
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240 case PixelFormat_Float32: |
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241 ToMatlabStringInternal<float>(buffer, *this); |
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242 break; |
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243 |
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244 case PixelFormat_RGB24: |
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245 RGB24ToMatlabString(buffer, *this); |
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246 break; |
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247 |
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248 default: |
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249 throw OrthancException(ErrorCode_NotImplemented); |
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250 } |
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251 |
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252 buffer.Flatten(target); |
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253 } |
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254 |
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255 |
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256 |
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257 void ImageAccessor::GetRegion(ImageAccessor& accessor, |
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258 unsigned int x, |
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259 unsigned int y, |
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260 unsigned int width, |
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261 unsigned int height) const |
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262 { |
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263 if (x + width > width_ || |
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264 y + height > height_) |
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265 { |
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266 throw OrthancException(ErrorCode_ParameterOutOfRange); |
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267 } |
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268 |
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269 if (width == 0 || |
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270 height == 0) |
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271 { |
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272 accessor.AssignWritable(format_, 0, 0, 0, NULL); |
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273 } |
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274 else |
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275 { |
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276 uint8_t* p = (buffer_ + |
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277 y * pitch_ + |
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278 x * GetBytesPerPixel()); |
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279 |
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280 if (readOnly_) |
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281 { |
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282 accessor.AssignReadOnly(format_, width, height, pitch_, p); |
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283 } |
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284 else |
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285 { |
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286 accessor.AssignWritable(format_, width, height, pitch_, p); |
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287 } |
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288 } |
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289 } |
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290 |
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291 |
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292 void ImageAccessor::SetFormat(PixelFormat format) |
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293 { |
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294 if (readOnly_) |
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295 { |
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296 throw OrthancException(ErrorCode_ReadOnly, |
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297 "Trying to modify the format of a read-only image"); |
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298 } |
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299 |
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300 if (::Orthanc::GetBytesPerPixel(format) != ::Orthanc::GetBytesPerPixel(format_)) |
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301 { |
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302 throw OrthancException(ErrorCode_IncompatibleImageFormat); |
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303 } |
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304 |
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305 format_ = format; |
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306 } |
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307 } |