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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 Osimis, 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 Affero 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 * Affero 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 Affero General Public License
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18 * along with this program. If not, see <http://www.gnu.org/licenses/>.
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19 **/
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20
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21
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22 #include "OrthancSlicesLoader.h"
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23
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24 #include "MessagingToolbox.h"
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25
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26 #include "../../Resources/Orthanc/Core/Images/PngReader.h"
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27 #include "../../Resources/Orthanc/Core/Logging.h"
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28 #include "../../Resources/Orthanc/Core/OrthancException.h"
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29 #include "../../Resources/Orthanc/Plugins/Samples/Common/DicomDatasetReader.h"
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30 #include "../../Resources/Orthanc/Plugins/Samples/Common/FullOrthancDataset.h"
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31
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32 #include <boost/lexical_cast.hpp>
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33
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34 namespace OrthancStone
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35 {
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36 class OrthancSlicesLoader::Operation : public Orthanc::IDynamicObject
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37 {
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38 private:
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39 Mode mode_;
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40 unsigned int frame_;
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41 unsigned int sliceIndex_;
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42 const Slice* slice_;
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43 std::string instanceId_;
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44
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45 Operation(Mode mode) :
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46 mode_(mode)
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47 {
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48 }
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49
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50 public:
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51 Mode GetMode() const
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52 {
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53 return mode_;
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54 }
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55
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56 unsigned int GetSliceIndex() const
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57 {
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58 assert(mode_ == Mode_LoadImage);
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59 return sliceIndex_;
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60 }
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61
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62 const Slice& GetSlice() const
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63 {
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64 assert(mode_ == Mode_LoadImage && slice_ != NULL);
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65 return *slice_;
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66 }
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67
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68 unsigned int GetFrame() const
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69 {
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70 assert(mode_ == Mode_InstanceGeometry);
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71 return frame_;
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72 }
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73
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74 const std::string& GetInstanceId() const
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75 {
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76 assert(mode_ == Mode_InstanceGeometry);
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77 return instanceId_;
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78 }
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79
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80 static Operation* DownloadSeriesGeometry()
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81 {
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82 return new Operation(Mode_SeriesGeometry);
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83 }
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84
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85 static Operation* DownloadInstanceGeometry(const std::string& instanceId,
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86 unsigned int frame)
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87 {
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88 std::auto_ptr<Operation> operation(new Operation(Mode_InstanceGeometry));
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89 operation->instanceId_ = instanceId;
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90 operation->frame_ = frame;
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91 return operation.release();
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92 }
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93
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94 static Operation* DownloadSliceImage(unsigned int sliceIndex,
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95 const Slice& slice)
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96 {
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97 std::auto_ptr<Operation> tmp(new Operation(Mode_LoadImage));
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98 tmp->sliceIndex_ = sliceIndex;
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99 tmp->slice_ = &slice;
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100 return tmp.release();
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101 }
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102 };
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103
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104
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105 class OrthancSlicesLoader::WebCallback : public IWebService::ICallback
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106 {
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107 private:
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108 OrthancSlicesLoader& that_;
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109
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110 public:
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111 WebCallback(OrthancSlicesLoader& that) :
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112 that_(that)
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113 {
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114 }
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115
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116 virtual void NotifySuccess(const std::string& uri,
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117 const void* answer,
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118 size_t answerSize,
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119 Orthanc::IDynamicObject* payload)
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120 {
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121 std::auto_ptr<Operation> operation(dynamic_cast<Operation*>(payload));
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122
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123 switch (operation->GetMode())
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124 {
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125 case Mode_SeriesGeometry:
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126 that_.ParseSeriesGeometry(answer, answerSize);
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127 break;
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128
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129 case Mode_InstanceGeometry:
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130 that_.ParseInstanceGeometry(operation->GetInstanceId(),
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131 operation->GetFrame(), answer, answerSize);
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132 break;
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133
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134 case Mode_LoadImage:
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135 that_.ParseSliceImage(*operation, answer, answerSize);
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136 break;
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137
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138 default:
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139 throw Orthanc::OrthancException(Orthanc::ErrorCode_InternalError);
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140 }
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141 }
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142
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143 virtual void NotifyError(const std::string& uri,
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144 Orthanc::IDynamicObject* payload)
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145 {
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146 std::auto_ptr<Operation> operation(dynamic_cast<Operation*>(payload));
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147 LOG(ERROR) << "Cannot download " << uri;
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148
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149 switch (operation->GetMode())
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150 {
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151 case Mode_SeriesGeometry:
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152 that_.userCallback_.NotifyGeometryError(that_);
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153 that_.state_ = State_Error;
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154 break;
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155
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156 case Mode_LoadImage:
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157 that_.userCallback_.NotifySliceImageError(that_, operation->GetSliceIndex(),
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158 operation->GetSlice());
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159 break;
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160
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161 default:
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162 throw Orthanc::OrthancException(Orthanc::ErrorCode_InternalError);
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163 }
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164 }
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165 };
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166
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167
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168 void OrthancSlicesLoader::ParseSeriesGeometry(const void* answer,
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169 size_t size)
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170 {
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171 Json::Value series;
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172 if (!MessagingToolbox::ParseJson(series, answer, size) ||
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173 series.type() != Json::objectValue)
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174 {
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175 userCallback_.NotifyGeometryError(*this);
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176 return;
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177 }
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178
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179 Json::Value::Members instances = series.getMemberNames();
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180
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181 slices_.Reserve(instances.size());
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182
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183 for (size_t i = 0; i < instances.size(); i++)
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184 {
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185 OrthancPlugins::FullOrthancDataset dataset(series[instances[i]]);
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186
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187 Slice slice;
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188 if (slice.ParseOrthancFrame(dataset, instances[i], 0 /* todo */))
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189 {
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190 slices_.AddSlice(slice);
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191 }
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192 else
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193 {
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194 LOG(WARNING) << "Skipping invalid instance " << instances[i];
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195 }
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196 }
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197
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198 bool ok = false;
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199
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200 if (slices_.GetSliceCount() > 0)
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201 {
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202 Vector normal;
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203 if (slices_.SelectNormal(normal))
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204 {
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205 slices_.FilterNormal(normal);
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206 slices_.SetNormal(normal);
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207 slices_.Sort();
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208 ok = true;
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209 }
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210 }
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211
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212 state_ = State_GeometryReady;
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213
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214 if (ok)
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215 {
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216 LOG(INFO) << "Loaded a series with " << slices_.GetSliceCount() << " slice(s)";
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217 userCallback_.NotifyGeometryReady(*this);
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218 }
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219 else
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220 {
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221 LOG(ERROR) << "This series is empty";
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222 userCallback_.NotifyGeometryError(*this);
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223 }
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224 }
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225
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226
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227 void OrthancSlicesLoader::ParseInstanceGeometry(const std::string& instanceId,
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228 unsigned int frame,
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229 const void* answer,
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230 size_t size)
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231 {
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232 Json::Value tags;
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233 if (!MessagingToolbox::ParseJson(tags, answer, size) ||
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234 tags.type() != Json::objectValue)
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235 {
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236 userCallback_.NotifyGeometryError(*this);
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237 return;
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238 }
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239
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240 OrthancPlugins::FullOrthancDataset dataset(tags);
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241
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242 state_ = State_GeometryReady;
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243
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244 Slice slice;
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245 if (slice.ParseOrthancFrame(dataset, instanceId, frame))
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246 {
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247 LOG(INFO) << "Loaded instance " << instanceId;
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248 slices_.AddSlice(slice);
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249 userCallback_.NotifyGeometryReady(*this);
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250 }
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251 else
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252 {
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253 LOG(WARNING) << "Skipping invalid instance " << instanceId;
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254 userCallback_.NotifyGeometryError(*this);
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255 }
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256 }
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257
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258
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259 void OrthancSlicesLoader::ParseSliceImage(const Operation& operation,
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260 const void* answer,
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261 size_t size)
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262 {
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263 std::auto_ptr<Orthanc::PngReader> image(new Orthanc::PngReader);
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264 image->ReadFromMemory(answer, size);
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265
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266 bool ok = (image->GetWidth() == operation.GetSlice().GetWidth() ||
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267 image->GetHeight() == operation.GetSlice().GetHeight());
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268
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269 if (ok &&
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270 operation.GetSlice().GetConverter().GetExpectedPixelFormat() ==
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271 Orthanc::PixelFormat_SignedGrayscale16)
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272 {
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273 if (image->GetFormat() == Orthanc::PixelFormat_Grayscale16)
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274 {
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275 image->SetFormat(Orthanc::PixelFormat_SignedGrayscale16);
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276 }
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277 else
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278 {
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279 ok = false;
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280 }
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281 }
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282
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283 if (ok)
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284 {
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285 userCallback_.NotifySliceImageReady(*this, operation.GetSliceIndex(),
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286 operation.GetSlice(), image.release());
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287 }
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288 else
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289 {
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290 userCallback_.NotifySliceImageError(*this, operation.GetSliceIndex(),
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291 operation.GetSlice());
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292 }
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293 }
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294
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295
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296 OrthancSlicesLoader::OrthancSlicesLoader(ICallback& callback,
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297 IWebService& orthanc) :
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298 webCallback_(new WebCallback(*this)),
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299 userCallback_(callback),
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300 orthanc_(orthanc),
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301 state_(State_Initialization)
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302 {
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303 }
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304
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305
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306 void OrthancSlicesLoader::ScheduleLoadSeries(const std::string& seriesId)
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307 {
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308 if (state_ != State_Initialization)
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309 {
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310 throw Orthanc::OrthancException(Orthanc::ErrorCode_BadSequenceOfCalls);
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311 }
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312 else
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313 {
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314 state_ = State_LoadingGeometry;
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315 std::string uri = "/series/" + seriesId + "/instances-tags";
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316 orthanc_.ScheduleGetRequest(*webCallback_, uri, Operation::DownloadSeriesGeometry());
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317 }
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318 }
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319
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320
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321 void OrthancSlicesLoader::ScheduleLoadInstance(const std::string& instanceId,
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322 unsigned int frame)
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323 {
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324 if (state_ != State_Initialization)
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325 {
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326 throw Orthanc::OrthancException(Orthanc::ErrorCode_BadSequenceOfCalls);
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327 }
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328 else
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329 {
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330 state_ = State_LoadingGeometry;
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331 std::string uri = "/instances/" + instanceId + "/tags";
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332 orthanc_.ScheduleGetRequest
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333 (*webCallback_, uri, Operation::DownloadInstanceGeometry(instanceId, frame));
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334 }
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335 }
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336
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337
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338 size_t OrthancSlicesLoader::GetSliceCount() const
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339 {
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340 if (state_ != State_GeometryReady)
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341 {
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342 throw Orthanc::OrthancException(Orthanc::ErrorCode_BadSequenceOfCalls);
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343 }
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344
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345 return slices_.GetSliceCount();
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346 }
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347
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348
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349 const Slice& OrthancSlicesLoader::GetSlice(size_t index) const
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350 {
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351 if (state_ != State_GeometryReady)
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352 {
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353 throw Orthanc::OrthancException(Orthanc::ErrorCode_BadSequenceOfCalls);
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354 }
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355
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356 return slices_.GetSlice(index);
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357 }
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358
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359
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360 void OrthancSlicesLoader::ScheduleLoadSliceImage(size_t index)
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361 {
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362 if (state_ != State_GeometryReady)
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363 {
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364 throw Orthanc::OrthancException(Orthanc::ErrorCode_BadSequenceOfCalls);
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365 }
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366 else
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367 {
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368 const Slice& slice = GetSlice(index);
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369
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370 std::string uri = ("/instances/" + slice.GetOrthancInstanceId() + "/frames/" +
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371 boost::lexical_cast<std::string>(slice.GetFrame()));
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372
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373 switch (slice.GetConverter().GetExpectedPixelFormat())
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374 {
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375 case Orthanc::PixelFormat_RGB24:
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376 uri += "/preview";
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377 break;
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378
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379 case Orthanc::PixelFormat_Grayscale16:
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380 uri += "/image-uint16";
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381 break;
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382
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383 case Orthanc::PixelFormat_SignedGrayscale16:
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384 uri += "/image-int16";
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385 break;
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386
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387 default:
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388 throw Orthanc::OrthancException(Orthanc::ErrorCode_ParameterOutOfRange);
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389 }
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390
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391 orthanc_.ScheduleGetRequest(*webCallback_, uri, Operation::DownloadSliceImage(index, slice));
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392 }
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393 }
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394 }
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