Mercurial > hg > orthanc
annotate OrthancFramework/Sources/DicomParsing/IDicomTranscoder.cpp @ 5141:023569e7155b
moved DicomModification thread safety into ResourceModificationJob (trying to avoid mutex in OrthancFramework as much as possible)
author | Alain Mazy <am@osimis.io> |
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date | Fri, 20 Jan 2023 18:10:42 +0100 |
parents | 60cb4b379485 |
children | 0ea402b4d901 |
rev | line source |
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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) 2017-2022 Osimis S.A., Belgium |
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6 * Copyright (C) 2021-2022 Sebastien Jodogne, ICTEAM UCLouvain, Belgium |
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7 * |
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8 * This program is free software: you can redistribute it and/or |
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9 * modify it under the terms of the GNU Lesser General Public License |
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10 * as published by the Free Software Foundation, either version 3 of |
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11 * the License, or (at your option) any later version. |
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12 * |
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13 * This program is distributed in the hope that it will be useful, but |
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14 * WITHOUT ANY WARRANTY; without even the implied warranty of |
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15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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16 * Lesser General Public License for more details. |
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17 * |
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18 * You should have received a copy of the GNU Lesser General Public |
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19 * License along with this program. If not, see |
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20 * <http://www.gnu.org/licenses/>. |
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21 **/ |
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22 |
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23 |
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24 #include "../PrecompiledHeaders.h" |
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25 #include "IDicomTranscoder.h" |
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26 |
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27 #include "../OrthancException.h" |
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28 #include "FromDcmtkBridge.h" |
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29 #include "ParsedDicomFile.h" |
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30 |
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31 #include <dcmtk/dcmdata/dcfilefo.h> |
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32 #include <dcmtk/dcmdata/dcdeftag.h> |
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33 |
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34 namespace Orthanc |
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35 { |
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36 IDicomTranscoder::TranscodingType IDicomTranscoder::GetTranscodingType(DicomTransferSyntax target, |
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37 DicomTransferSyntax source) |
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38 { |
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39 if (target == source) |
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40 { |
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41 return TranscodingType_Lossless; |
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42 } |
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43 else if (target == DicomTransferSyntax_LittleEndianImplicit || |
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44 target == DicomTransferSyntax_LittleEndianExplicit || |
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45 target == DicomTransferSyntax_BigEndianExplicit || |
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46 target == DicomTransferSyntax_DeflatedLittleEndianExplicit || |
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47 target == DicomTransferSyntax_JPEGProcess14 || |
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48 target == DicomTransferSyntax_JPEGProcess14SV1 || |
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49 target == DicomTransferSyntax_JPEGLSLossless || |
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50 target == DicomTransferSyntax_JPEG2000LosslessOnly || |
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51 target == DicomTransferSyntax_JPEG2000MulticomponentLosslessOnly) |
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52 { |
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53 return TranscodingType_Lossless; |
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54 } |
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55 else if (target == DicomTransferSyntax_JPEGProcess1 || |
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56 target == DicomTransferSyntax_JPEGProcess2_4 || |
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57 target == DicomTransferSyntax_JPEGLSLossy || |
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58 target == DicomTransferSyntax_JPEG2000 || |
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59 target == DicomTransferSyntax_JPEG2000Multicomponent) |
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60 { |
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61 return TranscodingType_Lossy; |
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62 } |
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63 else |
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64 { |
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65 return TranscodingType_Unknown; |
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66 } |
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67 } |
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68 |
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69 |
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70 std::string IDicomTranscoder::GetSopInstanceUid(DcmFileFormat& dicom) |
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71 { |
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72 if (dicom.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 |
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77 DcmDataset& dataset = *dicom.getDataset(); |
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78 |
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79 std::string s; |
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80 if (FromDcmtkBridge::LookupStringValue(s, dataset, DICOM_TAG_SOP_INSTANCE_UID)) |
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81 { |
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82 return s; |
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83 } |
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84 else |
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85 { |
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86 throw OrthancException(ErrorCode_BadFileFormat, "File without SOP instance UID"); |
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87 } |
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88 } |
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89 |
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90 |
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91 void IDicomTranscoder::CheckTranscoding(IDicomTranscoder::DicomImage& transcoded, |
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92 DicomTransferSyntax sourceSyntax, |
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93 const std::string& sourceSopInstanceUid, |
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94 const std::set<DicomTransferSyntax>& allowedSyntaxes, |
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95 bool allowNewSopInstanceUid) |
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96 { |
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97 DcmFileFormat& parsed = transcoded.GetParsed(); |
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98 |
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99 if (parsed.getDataset() == NULL) |
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100 { |
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101 throw OrthancException(ErrorCode_InternalError); |
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102 } |
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103 |
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104 std::string targetSopInstanceUid = GetSopInstanceUid(parsed); |
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105 |
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106 if (parsed.getDataset()->tagExists(DCM_PixelData)) |
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107 { |
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108 if (!allowNewSopInstanceUid && (targetSopInstanceUid != sourceSopInstanceUid)) |
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109 { |
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110 throw OrthancException(ErrorCode_InternalError); |
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111 } |
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112 } |
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113 else |
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114 { |
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115 if (targetSopInstanceUid != sourceSopInstanceUid) |
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116 { |
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117 throw OrthancException(ErrorCode_InternalError, |
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118 "No pixel data: Transcoding must not change the SOP instance UID"); |
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119 } |
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120 } |
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121 |
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122 DicomTransferSyntax targetSyntax; |
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123 if (!FromDcmtkBridge::LookupOrthancTransferSyntax(targetSyntax, parsed)) |
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124 { |
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125 return; // Unknown transfer syntax, cannot do further test |
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126 } |
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127 |
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128 if (allowedSyntaxes.find(sourceSyntax) != allowedSyntaxes.end()) |
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129 { |
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130 // No transcoding should have happened |
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131 if (targetSopInstanceUid != sourceSopInstanceUid) |
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132 { |
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133 throw OrthancException(ErrorCode_InternalError); |
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134 } |
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135 } |
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136 |
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137 if (allowedSyntaxes.find(targetSyntax) == allowedSyntaxes.end()) |
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138 { |
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139 throw OrthancException(ErrorCode_InternalError, "An incorrect output transfer syntax was chosen"); |
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140 } |
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141 |
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142 if (parsed.getDataset()->tagExists(DCM_PixelData)) |
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143 { |
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144 switch (GetTranscodingType(targetSyntax, sourceSyntax)) |
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145 { |
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146 case TranscodingType_Lossy: |
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147 if (targetSopInstanceUid == sourceSopInstanceUid) |
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148 { |
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149 throw OrthancException(ErrorCode_InternalError); |
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150 } |
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151 break; |
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152 |
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153 case TranscodingType_Lossless: |
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154 if (targetSopInstanceUid != sourceSopInstanceUid) |
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155 { |
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156 throw OrthancException(ErrorCode_InternalError); |
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157 } |
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158 break; |
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159 |
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160 default: |
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161 break; |
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162 } |
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163 } |
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164 } |
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166 |
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167 void IDicomTranscoder::DicomImage::Parse() |
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168 { |
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169 if (parsed_.get() != NULL) |
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170 { |
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171 // Already parsed |
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172 throw OrthancException(ErrorCode_BadSequenceOfCalls); |
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173 } |
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174 else if (buffer_.get() != NULL) |
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175 { |
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176 if (isExternalBuffer_) |
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177 { |
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178 throw OrthancException(ErrorCode_InternalError); |
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179 } |
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180 else |
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181 { |
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182 parsed_.reset(FromDcmtkBridge::LoadFromMemoryBuffer( |
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183 buffer_->empty() ? NULL : buffer_->c_str(), buffer_->size())); |
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184 |
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185 if (parsed_.get() == NULL) |
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186 { |
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187 throw OrthancException(ErrorCode_BadFileFormat); |
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188 } |
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189 } |
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190 } |
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191 else if (isExternalBuffer_) |
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192 { |
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193 parsed_.reset(FromDcmtkBridge::LoadFromMemoryBuffer(externalBuffer_, externalSize_)); |
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194 |
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195 if (parsed_.get() == NULL) |
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196 { |
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197 throw OrthancException(ErrorCode_BadFileFormat); |
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198 } |
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199 } |
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200 else |
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201 { |
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202 // No buffer is available |
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203 throw OrthancException(ErrorCode_BadSequenceOfCalls); |
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204 } |
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205 } |
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206 |
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207 |
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208 void IDicomTranscoder::DicomImage::Serialize() |
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209 { |
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210 if (parsed_.get() == NULL || |
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211 buffer_.get() != NULL || |
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212 isExternalBuffer_) |
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213 { |
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214 throw OrthancException(ErrorCode_BadSequenceOfCalls); |
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215 } |
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216 else if (parsed_->getDataset() == NULL) |
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217 { |
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218 throw OrthancException(ErrorCode_InternalError); |
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219 } |
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220 else |
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221 { |
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222 buffer_.reset(new std::string); |
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223 FromDcmtkBridge::SaveToMemoryBuffer(*buffer_, *parsed_->getDataset()); |
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224 } |
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225 } |
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226 |
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227 |
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228 IDicomTranscoder::DicomImage::DicomImage() : |
4200 | 229 isExternalBuffer_(false), |
230 externalBuffer_(NULL), | |
231 externalSize_(0) | |
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232 { |
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233 } |
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234 |
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235 |
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236 void IDicomTranscoder::DicomImage::Clear() |
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237 { |
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238 parsed_.reset(NULL); |
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239 buffer_.reset(NULL); |
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240 isExternalBuffer_ = false; |
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241 } |
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242 |
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243 |
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244 void IDicomTranscoder::DicomImage::AcquireParsed(ParsedDicomFile& parsed) |
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245 { |
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246 AcquireParsed(parsed.ReleaseDcmtkObject()); |
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247 } |
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248 |
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249 |
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250 void IDicomTranscoder::DicomImage::AcquireParsed(DcmFileFormat* parsed) |
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251 { |
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252 if (parsed == NULL) |
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253 { |
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254 throw OrthancException(ErrorCode_NullPointer); |
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255 } |
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256 else if (parsed->getDataset() == NULL) |
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257 { |
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258 throw OrthancException(ErrorCode_InternalError); |
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259 } |
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260 else if (parsed_.get() != NULL) |
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261 { |
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262 throw OrthancException(ErrorCode_BadSequenceOfCalls); |
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263 } |
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264 else |
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265 { |
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266 parsed_.reset(parsed); |
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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 void IDicomTranscoder::DicomImage::AcquireParsed(DicomImage& other) |
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272 { |
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273 AcquireParsed(other.ReleaseParsed()); |
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274 } |
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275 |
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276 |
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277 void IDicomTranscoder::DicomImage::AcquireBuffer(std::string& buffer /* will be swapped */) |
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278 { |
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279 if (buffer_.get() != NULL || |
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280 isExternalBuffer_) |
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281 { |
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282 throw OrthancException(ErrorCode_BadSequenceOfCalls); |
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283 } |
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284 else |
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285 { |
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286 buffer_.reset(new std::string); |
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287 buffer_->swap(buffer); |
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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 IDicomTranscoder::DicomImage::AcquireBuffer(DicomImage& other) |
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293 { |
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294 if (buffer_.get() != NULL || |
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295 isExternalBuffer_) |
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296 { |
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297 throw OrthancException(ErrorCode_BadSequenceOfCalls); |
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298 } |
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299 else if (other.isExternalBuffer_) |
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300 { |
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301 assert(other.buffer_.get() == NULL); |
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302 isExternalBuffer_ = true; |
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303 externalBuffer_ = other.externalBuffer_; |
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304 externalSize_ = other.externalSize_; |
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305 } |
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306 else if (other.buffer_.get() != NULL) |
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307 { |
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308 buffer_.reset(other.buffer_.release()); |
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309 } |
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310 else |
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311 { |
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312 buffer_.reset(NULL); |
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313 } |
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314 } |
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315 |
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316 |
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317 void IDicomTranscoder::DicomImage::SetExternalBuffer(const void* buffer, |
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318 size_t size) |
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319 { |
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320 if (buffer_.get() != NULL || |
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321 isExternalBuffer_) |
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322 { |
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323 throw OrthancException(ErrorCode_BadSequenceOfCalls); |
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324 } |
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325 else |
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326 { |
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327 isExternalBuffer_ = true; |
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328 externalBuffer_ = buffer; |
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329 externalSize_ = size; |
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330 } |
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331 } |
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332 |
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333 |
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334 void IDicomTranscoder::DicomImage::SetExternalBuffer(const std::string& buffer) |
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335 { |
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336 SetExternalBuffer(buffer.empty() ? NULL : buffer.c_str(), buffer.size()); |
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337 } |
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338 |
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339 |
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340 DcmFileFormat& IDicomTranscoder::DicomImage::GetParsed() |
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341 { |
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342 if (parsed_.get() != NULL) |
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343 { |
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344 return *parsed_; |
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345 } |
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346 else if (buffer_.get() != NULL || |
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347 isExternalBuffer_) |
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348 { |
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349 Parse(); |
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350 return *parsed_; |
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351 } |
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352 else |
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353 { |
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354 throw OrthancException( |
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355 ErrorCode_BadSequenceOfCalls, |
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356 "AcquireParsed(), AcquireBuffer() or SetExternalBuffer() should have been called"); |
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357 } |
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358 } |
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359 |
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360 |
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361 DcmFileFormat* IDicomTranscoder::DicomImage::ReleaseParsed() |
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362 { |
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363 if (parsed_.get() != NULL) |
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364 { |
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365 buffer_.reset(NULL); |
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366 return parsed_.release(); |
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367 } |
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368 else if (buffer_.get() != NULL || |
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369 isExternalBuffer_) |
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370 { |
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371 Parse(); |
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372 buffer_.reset(NULL); |
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373 return parsed_.release(); |
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374 } |
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375 else |
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376 { |
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377 throw OrthancException( |
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378 ErrorCode_BadSequenceOfCalls, |
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379 "AcquireParsed(), AcquireBuffer() or SetExternalBuffer() should have been called"); |
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380 } |
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381 } |
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382 |
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383 |
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384 ParsedDicomFile* IDicomTranscoder::DicomImage::ReleaseAsParsedDicomFile() |
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385 { |
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386 return ParsedDicomFile::AcquireDcmtkObject(ReleaseParsed()); |
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387 } |
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388 |
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389 |
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390 const void* IDicomTranscoder::DicomImage::GetBufferData() |
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391 { |
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392 if (isExternalBuffer_) |
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393 { |
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394 assert(buffer_.get() == NULL); |
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395 return externalBuffer_; |
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396 } |
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397 else |
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398 { |
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399 if (buffer_.get() == NULL) |
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400 { |
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401 Serialize(); |
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402 } |
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403 |
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404 assert(buffer_.get() != NULL); |
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405 return buffer_->empty() ? NULL : buffer_->c_str(); |
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406 } |
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407 } |
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408 |
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409 |
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410 size_t IDicomTranscoder::DicomImage::GetBufferSize() |
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411 { |
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412 if (isExternalBuffer_) |
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413 { |
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414 assert(buffer_.get() == NULL); |
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415 return externalSize_; |
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416 } |
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417 else |
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418 { |
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419 if (buffer_.get() == NULL) |
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420 { |
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421 Serialize(); |
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422 } |
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423 |
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424 assert(buffer_.get() != NULL); |
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425 return buffer_->size(); |
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426 } |
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427 } |
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428 } |