Mercurial > hg > orthanc

annotate Core/DicomParsing/IDicomTranscoder.cpp @ 3944:aae045f802f4 transcoding

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preparing simplified interface for IDicomTranscoder
author Sebastien Jodogne <s.jodogne@gmail.com>
date Tue, 19 May 2020 10:17:06 +0200
parents 7610af1532c3
children 0b3256c3ee14
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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 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 "IDicomTranscoder.h"
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36
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37 #include "../OrthancException.h"
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38 #include "FromDcmtkBridge.h"
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39 #include "ParsedDicomFile.h"
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40
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41 #include <dcmtk/dcmdata/dcfilefo.h>
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42
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43 namespace Orthanc
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44 {
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45 void IDicomTranscoder::DicomImage::Parse()
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46 {
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47 if (parsed_.get() != NULL ||
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48 buffer_.get() == NULL)
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49 {
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50 throw OrthancException(ErrorCode_BadSequenceOfCalls);
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51 }
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52 else
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53 {
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54 parsed_.reset(FromDcmtkBridge::LoadFromMemoryBuffer(
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55 buffer_->empty() ? NULL : buffer_->c_str(), buffer_->size()));
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56
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57 if (parsed_.get() == NULL)
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58 {
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59 throw OrthancException(ErrorCode_BadFileFormat);
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60 }
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61 }
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62 }
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63
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64
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65 void IDicomTranscoder::DicomImage::Serialize()
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66 {
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67 if (parsed_.get() == NULL ||
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68 buffer_.get() != NULL)
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69 {
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70 throw OrthancException(ErrorCode_BadSequenceOfCalls);
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71 }
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72 else if (parsed_->getDataset() == NULL)
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73 {
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74 throw OrthancException(ErrorCode_InternalError);
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75 }
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76 else
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77 {
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78 buffer_.reset(new std::string);
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79 FromDcmtkBridge::SaveToMemoryBuffer(*buffer_, *parsed_->getDataset());
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80 }
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81 }
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82
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83
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84 void IDicomTranscoder::DicomImage::Clear()
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85 {
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86 parsed_.reset(NULL);
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87 buffer_.reset(NULL);
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88 }
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89
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90
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91 void IDicomTranscoder::DicomImage::AcquireParsed(ParsedDicomFile& parsed)
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92 {
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93 AcquireParsed(parsed.ReleaseDcmtkObject());
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94 }
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95
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96
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97 void IDicomTranscoder::DicomImage::AcquireParsed(DcmFileFormat* parsed)
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98 {
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99 if (parsed == NULL)
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100 {
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101 throw OrthancException(ErrorCode_NullPointer);
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102 }
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103 else if (parsed_.get() != NULL)
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104 {
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105 throw OrthancException(ErrorCode_BadSequenceOfCalls);
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106 }
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107 else if (parsed->getDataset() == NULL)
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108 {
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109 throw OrthancException(ErrorCode_InternalError);
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110 }
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111 else
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112 {
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113 parsed_.reset(parsed);
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114 }
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115 }
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116
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117
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118 void IDicomTranscoder::DicomImage::AcquireParsed(DicomImage& other)
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119 {
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120 AcquireParsed(other.ReleaseParsed());
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121 }
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122
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123
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124 void IDicomTranscoder::DicomImage::AcquireBuffer(std::string& buffer /* will be swapped */)
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125 {
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126 if (buffer_.get() != NULL)
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127 {
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128 throw OrthancException(ErrorCode_BadSequenceOfCalls);
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129 }
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130 else
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131 {
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132 buffer_.reset(new std::string);
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133 buffer_->swap(buffer);
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134 }
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135 }
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136
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137
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138 void IDicomTranscoder::DicomImage::AcquireBuffer(DicomImage& other)
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139 {
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140 if (buffer_.get() != NULL)
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141 {
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142 throw OrthancException(ErrorCode_BadSequenceOfCalls);
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143 }
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144 else if (other.buffer_.get() == NULL)
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145 {
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146 buffer_.reset(NULL);
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147 }
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148 else
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149 {
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150 buffer_.reset(other.buffer_.release());
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151 }
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152 }
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153
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154
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155 DcmFileFormat& IDicomTranscoder::DicomImage::GetParsed()
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156 {
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157 if (parsed_.get() != NULL)
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158 {
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159 return *parsed_;
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160 }
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161 else if (buffer_.get() != NULL)
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162 {
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163 Parse();
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164 return *parsed_;
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165 }
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166 else
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167 {
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168 throw OrthancException(ErrorCode_BadSequenceOfCalls,
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169 "AcquireParsed() or AcquireBuffer() should have been called");
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170 }
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171 }
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172
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173
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174 DcmFileFormat* IDicomTranscoder::DicomImage::ReleaseParsed()
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175 {
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176 if (parsed_.get() != NULL)
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177 {
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178 buffer_.reset(NULL);
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179 return parsed_.release();
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180 }
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181 else if (buffer_.get() != NULL)
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182 {
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183 Parse();
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184 buffer_.reset(NULL);
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185 return parsed_.release();
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186 }
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187 else
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188 {
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189 throw OrthancException(ErrorCode_BadSequenceOfCalls,
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190 "AcquireParsed() or AcquireBuffer() should have been called");
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191 }
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192 }
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193
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194
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195 const void* IDicomTranscoder::DicomImage::GetBufferData()
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196 {
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197 if (buffer_.get() == NULL)
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198 {
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199 Serialize();
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200 }
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201
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202 assert(buffer_.get() != NULL);
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203 return buffer_->empty() ? NULL : buffer_->c_str();
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204 }
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205
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206
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diff changeset
207 size_t IDicomTranscoder::DicomImage::GetBufferSize()
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208 {
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209 if (buffer_.get() == NULL)
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210 {
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211 Serialize();
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212 }
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diff changeset
213
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diff changeset
214 assert(buffer_.get() != NULL);
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215 return buffer_->size();
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diff changeset
216 }
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diff changeset
217
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diff changeset
218
3906
f0dd5ded8927 refactoring using IDicomTranscoder::TranscodedDicom
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diff changeset
219 IDicomTranscoder::TranscodedDicom::TranscodedDicom(bool hasSopInstanceUidChanged) :
f0dd5ded8927 refactoring using IDicomTranscoder::TranscodedDicom
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diff changeset
220 external_(NULL),
f0dd5ded8927 refactoring using IDicomTranscoder::TranscodedDicom
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diff changeset
221 hasSopInstanceUidChanged_(hasSopInstanceUidChanged)
f0dd5ded8927 refactoring using IDicomTranscoder::TranscodedDicom
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diff changeset
222 {
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diff changeset
223 }
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parents:
diff changeset
224
f0dd5ded8927 refactoring using IDicomTranscoder::TranscodedDicom
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diff changeset
225
f0dd5ded8927 refactoring using IDicomTranscoder::TranscodedDicom
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diff changeset
226 IDicomTranscoder::TranscodedDicom*
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diff changeset
227 IDicomTranscoder::TranscodedDicom::CreateFromExternal(DcmFileFormat& dicom,
f0dd5ded8927 refactoring using IDicomTranscoder::TranscodedDicom
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diff changeset
228 bool hasSopInstanceUidChanged)
f0dd5ded8927 refactoring using IDicomTranscoder::TranscodedDicom
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diff changeset
229 {
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diff changeset
230 std::unique_ptr<TranscodedDicom> transcoded(new TranscodedDicom(hasSopInstanceUidChanged));
f0dd5ded8927 refactoring using IDicomTranscoder::TranscodedDicom
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diff changeset
231 transcoded->external_ = &dicom;
f0dd5ded8927 refactoring using IDicomTranscoder::TranscodedDicom
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diff changeset
232 return transcoded.release();
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diff changeset
233 }
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diff changeset
234
f0dd5ded8927 refactoring using IDicomTranscoder::TranscodedDicom
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diff changeset
235
f0dd5ded8927 refactoring using IDicomTranscoder::TranscodedDicom
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diff changeset
236 IDicomTranscoder::TranscodedDicom*
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parents:
diff changeset
237 IDicomTranscoder::TranscodedDicom::CreateFromInternal(DcmFileFormat* dicom,
f0dd5ded8927 refactoring using IDicomTranscoder::TranscodedDicom
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parents:
diff changeset
238 bool hasSopInstanceUidChanged)
f0dd5ded8927 refactoring using IDicomTranscoder::TranscodedDicom
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diff changeset
239 {
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diff changeset
240 if (dicom == NULL)
f0dd5ded8927 refactoring using IDicomTranscoder::TranscodedDicom
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diff changeset
241 {
f0dd5ded8927 refactoring using IDicomTranscoder::TranscodedDicom
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diff changeset
242 throw OrthancException(ErrorCode_NullPointer);
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diff changeset
243 }
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diff changeset
244 else
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diff changeset
245 {
f0dd5ded8927 refactoring using IDicomTranscoder::TranscodedDicom
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diff changeset
246 std::unique_ptr<TranscodedDicom> transcoded(new TranscodedDicom(hasSopInstanceUidChanged));
f0dd5ded8927 refactoring using IDicomTranscoder::TranscodedDicom
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diff changeset
247 transcoded->internal_.reset(dicom);
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diff changeset
248 return transcoded.release();
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249 }
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diff changeset
250 }
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diff changeset
251
f0dd5ded8927 refactoring using IDicomTranscoder::TranscodedDicom
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diff changeset
252
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diff changeset
253 DcmFileFormat& IDicomTranscoder::TranscodedDicom::GetDicom() const
f0dd5ded8927 refactoring using IDicomTranscoder::TranscodedDicom
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254 {
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diff changeset
255 if (internal_.get() != NULL)
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diff changeset
256 {
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diff changeset
257 return *internal_.get();
f0dd5ded8927 refactoring using IDicomTranscoder::TranscodedDicom
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258 }
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259 else if (external_ != NULL)
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260 {
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261 return *external_;
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262 }
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263 else
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264 {
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265 // Probably results from a call to "ReleaseDicom()"
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266 throw OrthancException(ErrorCode_BadSequenceOfCalls);
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267 }
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268 }
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269
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270
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271 DcmFileFormat* IDicomTranscoder::TranscodedDicom::ReleaseDicom()
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272 {
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273 if (internal_.get() != NULL)
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274 {
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275 return internal_.release();
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276 }
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277 else if (external_ != NULL)
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278 {
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279 return new DcmFileFormat(*external_); // Clone
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280 }
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281 else
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282 {
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283 // Probably results from a call to "ReleaseDicom()"
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284 throw OrthancException(ErrorCode_BadSequenceOfCalls);
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285 }
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286 }
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287 }