Mercurial > hg > orthanc-stone
annotate Samples/WebAssembly/RtViewer/RtViewerWasm.cpp @ 1404:3e644f6fadd4
Three-viewport is now OK in SDL and Wasm
author | Benjamin Golinvaux <bgo@osimis.io> |
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date | Wed, 29 Apr 2020 22:06:24 +0200 |
parents | 27e0a00bd3e8 |
children | 5d7ee14dc1eb |
rev | line source |
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1393
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RtViewer SingleFrameViewer OK : wasm SDL single viewport
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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 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 #include "RtViewerApp.h" |
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22 #include "RtViewerView.h" |
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23 #include "SampleHelpers.h" |
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24 |
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25 // Stone of Orthanc includes |
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26 #include <Framework/Loaders/WebAssemblyLoadersContext.h> |
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27 //#include <Framework/OpenGL/WebAssemblyOpenGLContext.h> |
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28 #include <Framework/Viewport/WebGLViewport.h> |
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29 #include <Framework/StoneException.h> |
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30 #include <Framework/StoneInitialization.h> |
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31 |
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32 #include <Framework/Loaders/WebAssemblyLoadersContext.h> |
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33 |
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34 #include <Framework/StoneException.h> |
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35 #include <Framework/StoneInitialization.h> |
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36 |
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37 #include <Core/Toolbox.h> |
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38 |
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39 #include <boost/program_options.hpp> |
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40 #include <boost/shared_ptr.hpp> |
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41 // #include <boost/pointer_cast.hpp> this include might be necessary in more recent boost versions |
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42 |
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43 #include <emscripten.h> |
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44 #include <emscripten/html5.h> |
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45 |
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46 |
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47 #define DISPATCH_JAVASCRIPT_EVENT(name) \ |
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48 EM_ASM( \ |
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49 const customEvent = document.createEvent("CustomEvent"); \ |
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50 customEvent.initCustomEvent(name, false, false, undefined); \ |
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51 window.dispatchEvent(customEvent); \ |
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52 ); |
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53 |
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54 #define EXTERN_CATCH_EXCEPTIONS \ |
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55 catch (Orthanc::OrthancException& e) \ |
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56 { \ |
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57 LOG(ERROR) << "OrthancException: " << e.What(); \ |
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58 DISPATCH_JAVASCRIPT_EVENT("StoneException"); \ |
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59 } \ |
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60 catch (OrthancStone::StoneException& e) \ |
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61 { \ |
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62 LOG(ERROR) << "StoneException: " << e.What(); \ |
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63 DISPATCH_JAVASCRIPT_EVENT("StoneException"); \ |
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64 } \ |
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65 catch (std::exception& e) \ |
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66 { \ |
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67 LOG(ERROR) << "Runtime error: " << e.what(); \ |
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68 DISPATCH_JAVASCRIPT_EVENT("StoneException"); \ |
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69 } \ |
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70 catch (...) \ |
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71 { \ |
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72 LOG(ERROR) << "Native exception"; \ |
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73 DISPATCH_JAVASCRIPT_EVENT("StoneException"); \ |
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74 } |
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75 |
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76 namespace OrthancStone |
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77 { |
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78 boost::shared_ptr<IViewport> RtViewerView::CreateViewport( |
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79 const std::string& canvasId) |
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80 { |
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81 return WebGLViewport::Create(canvasId); |
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82 } |
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83 |
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84 void RtViewerView::TakeScreenshot(const std::string& target, |
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85 unsigned int canvasWidth, |
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86 unsigned int canvasHeight) |
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87 { |
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88 throw Orthanc::OrthancException(Orthanc::ErrorCode_NotImplemented); |
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89 } |
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90 |
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91 |
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92 void RtViewerApp::RunWasm() |
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93 { |
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94 loadersContext_.reset(new OrthancStone::WebAssemblyLoadersContext(1, 4, 1)); |
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95 |
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96 // we are in WASM --> downcast to concrete type |
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97 boost::shared_ptr<WebAssemblyLoadersContext> loadersContext = |
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98 boost::dynamic_pointer_cast<WebAssemblyLoadersContext>(loadersContext_); |
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99 |
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100 if (HasArgument("orthanc")) |
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101 loadersContext->SetLocalOrthanc(GetArgument("orthanc")); |
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102 else |
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103 loadersContext->SetLocalOrthanc(".."); |
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104 |
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105 loadersContext->SetDicomCacheSize(128 * 1024 * 1024); // 128MB |
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106 |
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107 CreateLoaders(); |
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108 |
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109 CreateView("RtViewer_Axial", VolumeProjection_Axial); |
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110 CreateView("RtViewer_Coronal", VolumeProjection_Coronal); |
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111 CreateView("RtViewer_Sagittal", VolumeProjection_Sagittal); |
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112 |
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113 for (size_t i = 0; i < views_.size(); ++i) |
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114 { |
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115 views_[i]->PrepareViewport(); |
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116 } |
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117 |
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118 StartLoaders(); |
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119 |
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120 DefaultViewportInteractor interactor; |
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121 } |
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122 } |
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123 |
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124 extern "C" |
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125 { |
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126 boost::shared_ptr<OrthancStone::RtViewerApp> g_app; |
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127 |
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128 int main(int argc, char const *argv[]) |
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129 { |
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130 try |
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131 { |
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132 OrthancStone::StoneInitialize(); |
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133 Orthanc::Logging::Initialize(); |
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134 Orthanc::Logging::EnableTraceLevel(true); |
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135 |
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136 LOG(WARNING) << "Initializing native Stone"; |
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137 |
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138 LOG(WARNING) << "Compiled with Emscripten " << __EMSCRIPTEN_major__ |
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139 << "." << __EMSCRIPTEN_minor__ |
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140 << "." << __EMSCRIPTEN_tiny__; |
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141 |
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142 LOG(INFO) << "Endianness: " << Orthanc::EnumerationToString(Orthanc::Toolbox::DetectEndianness()); |
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143 |
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144 g_app = OrthancStone::RtViewerApp::Create(); |
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145 |
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146 DISPATCH_JAVASCRIPT_EVENT("WasmModuleInitialized"); |
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147 } |
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148 EXTERN_CATCH_EXCEPTIONS; |
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149 } |
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150 |
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151 EMSCRIPTEN_KEEPALIVE |
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152 void Initialize(const char* canvasId) |
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153 { |
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154 try |
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155 { |
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156 g_app->RunWasm(); |
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157 } |
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158 EXTERN_CATCH_EXCEPTIONS; |
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159 } |
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160 |
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161 EMSCRIPTEN_KEEPALIVE |
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162 void SetArgument(const char* key, const char* value) |
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163 { |
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164 // This is called for each GET argument (cf. "app.js") |
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165 LOG(INFO) << "Received GET argument: [" << key << "] = [" << value << "]"; |
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166 g_app->SetArgument(key, value); |
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167 } |
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168 |
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169 } |