Mercurial > hg > orthanc-stone

annotate OrthancStone/Sources/Loaders/DicomVolumeLoader.cpp @ 1598:8563ea5d8ae4

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author Sebastien Jodogne <s.jodogne@gmail.com>
date Mon, 26 Oct 2020 20:49:28 +0100
parents 4fb8fdf03314
children 52b8b96cb55f
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1 /**
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2 * Stone of Orthanc
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3 * Copyright (C) 2012-2016 Sebastien Jodogne, Medical Physics
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4 * Department, University Hospital of Liege, Belgium
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5 * Copyright (C) 2017-2020 Osimis S.A., Belgium
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6 *
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7 * This program is free software: you can redistribute it and/or
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8 * modify it under the terms of the GNU Lesser General Public License
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9 * as published by the Free Software Foundation, either version 3 of
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10 * the License, or (at your option) any later version.
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11 *
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12 * This program is distributed in the hope that it will be useful, but
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13 * WITHOUT ANY WARRANTY; without even the implied warranty of
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14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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15 * Lesser General Public License for more details.
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16 *
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17 * You should have received a copy of the GNU Lesser General Public
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18 * License along with this program. If not, see
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19 * <http://www.gnu.org/licenses/>.
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20 **/
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21
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22
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23 #include "DicomVolumeLoader.h"
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24
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25 #include <Images/ImageProcessing.h>
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27 namespace OrthancStone
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28 {
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29 DicomVolumeLoader::DicomVolumeLoader(boost::shared_ptr<SeriesFramesLoader>& framesLoader,
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30 bool computeRange) :
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31 framesLoader_(framesLoader),
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32 isValid_(false),
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33 started_(false),
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34 remaining_(0)
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35 {
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36 volume_.reset(new OrthancStone::DicomVolumeImage);
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37
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38 const SeriesOrderedFrames& frames = framesLoader_->GetOrderedFrames();
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39
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40 if (frames.IsRegular3DVolume() &&
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41 frames.GetFramesCount() > 0)
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42 {
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43 // TODO - Is "0" the good choice for the reference frame?
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44 // Shouldn't we use "count - 1" depending on the direction
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45 // of the normal?
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46 const OrthancStone::DicomInstanceParameters& parameters = frames.GetInstanceParameters(0);
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47
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48 OrthancStone::CoordinateSystem3D plane(frames.GetInstance(0));
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49
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50 OrthancStone::VolumeImageGeometry geometry;
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51 geometry.SetSizeInVoxels(parameters.GetImageInformation().GetWidth(),
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52 parameters.GetImageInformation().GetHeight(),
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53 static_cast<unsigned int>(frames.GetFramesCount()));
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54 geometry.SetAxialGeometry(plane);
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55
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56 double spacing;
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57 if (parameters.GetSopClassUid() == SopClassUid_RTDose)
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58 {
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59 if (!parameters.ComputeRegularSpacing(spacing))
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60 {
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61 LOG(WARNING) << "Unable to compute the spacing in a RT-DOSE instance";
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62 spacing = frames.GetSpacingBetweenSlices();
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63 }
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64 }
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65 else
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66 {
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67 spacing = frames.GetSpacingBetweenSlices();
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68 }
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69
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70 geometry.SetVoxelDimensions(parameters.GetPixelSpacingX(),
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71 parameters.GetPixelSpacingY(), spacing);
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72 volume_->Initialize(geometry, parameters.GetExpectedPixelFormat(), computeRange);
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73 volume_->GetPixelData().Clear();
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74 volume_->SetDicomParameters(parameters);
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75
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76 remaining_ = frames.GetFramesCount();
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77 isValid_ = true;
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78 }
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79 else
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80 {
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81 LOG(WARNING) << "Not a regular 3D volume";
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82 }
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83 }
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84
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85
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86 void DicomVolumeLoader::Handle(const OrthancStone::SeriesFramesLoader::FrameLoadedMessage& message)
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87 {
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88 if (remaining_ == 0 ||
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89 !message.HasUserPayload())
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90 {
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91 throw Orthanc::OrthancException(Orthanc::ErrorCode_InternalError);
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92 }
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93
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94 if (message.GetImage().GetWidth() != volume_->GetPixelData().GetWidth() ||
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95 message.GetImage().GetHeight() != volume_->GetPixelData().GetHeight())
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96 {
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97 throw Orthanc::OrthancException(Orthanc::ErrorCode_IncompatibleImageSize);
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98 }
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99
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100 if (message.GetImage().GetFormat() != volume_->GetPixelData().GetFormat())
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101 {
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102 throw Orthanc::OrthancException(Orthanc::ErrorCode_IncompatibleImageFormat);
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103 }
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104
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105 if (message.GetFrameIndex() >= volume_->GetPixelData().GetDepth())
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106 {
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107 throw Orthanc::OrthancException(Orthanc::ErrorCode_ParameterOutOfRange);
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108 }
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109
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110 size_t frameIndex = dynamic_cast<const Orthanc::SingleValueObject<size_t>&>
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111 (message.GetUserPayload()).GetValue();
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112
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113 {
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114 ImageBuffer3D::SliceWriter writer(volume_->GetPixelData(),
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115 VolumeProjection_Axial,
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116 static_cast<unsigned int>(frameIndex));
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117
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118 Orthanc::ImageProcessing::Copy(writer.GetAccessor(), message.GetImage());
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119 }
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120
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121 volume_->IncrementRevision();
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122
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123 {
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124 VolumeUpdatedMessage updated(*this,
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125 static_cast<unsigned int>(frameIndex));
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126
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127 BroadcastMessage(updated);
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128 }
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129
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130 remaining_--;
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131
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132 if (remaining_ == 0)
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133 {
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134 VolumeReadyMessage ready(*this);
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135 BroadcastMessage(ready);
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136 }
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137 }
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138
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139
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140 DicomVolumeLoader::Factory::Factory(LoadedDicomResources& instances) :
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141 framesFactory_(instances),
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142 computeRange_(false)
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143 {
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144 }
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145
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146 DicomVolumeLoader::Factory::Factory(const SeriesMetadataLoader::SuccessMessage& metadata) :
1228
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147 framesFactory_(metadata.GetInstances()),
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148 computeRange_(false)
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149 {
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150 SetDicomDir(metadata.GetDicomDirPath(), metadata.GetDicomDir()); // Only useful for DICOMDIR sources
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151 }
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152
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153
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154 boost::shared_ptr<IObserver> DicomVolumeLoader::Factory::Create(ILoadersContext::ILock& context)
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155 {
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156 boost::shared_ptr<SeriesFramesLoader> frames =
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157 boost::dynamic_pointer_cast<SeriesFramesLoader>(framesFactory_.Create(context));
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158
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159 boost::shared_ptr<DicomVolumeLoader> volume(new DicomVolumeLoader(frames, computeRange_));
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160 volume->Register<SeriesFramesLoader::FrameLoadedMessage>(*frames, &DicomVolumeLoader::Handle);
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161
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162 return volume;
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163 }
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164
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165 void DicomVolumeLoader::Start(int priority,
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166 const DicomSource& source)
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167 {
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168 if (started_)
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169 {
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170 throw Orthanc::OrthancException(Orthanc::ErrorCode_BadSequenceOfCalls);
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171 }
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172
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173 started_ = true;
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174
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175 if (IsValid())
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176 {
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177 for (size_t i = 0; i < GetOrderedFrames().GetFramesCount(); i++)
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178 {
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179 framesLoader_->ScheduleLoadFrame(priority, source, i, source.GetQualityCount() - 1,
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180 new Orthanc::SingleValueObject<size_t>(i));
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181 }
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182 }
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183 else
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184 {
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185 VolumeReadyMessage ready(*this);
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186 BroadcastMessage(ready);
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187 }
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188 }
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189 }