Mercurial > hg > orthanc-stone
annotate Samples/WebAssembly/RtViewer/RtViewerWasm.cpp @ 1400:419d0320c344
moved Platforms into Deprecated
author | Alain Mazy <alain@mazy.be> |
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date | Wed, 29 Apr 2020 20:45:14 +0200 |
parents | 27e0a00bd3e8 |
children | 3e644f6fadd4 |
rev | line source |
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1393
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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 "RtViewer.h" |
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22 #include "SampleHelpers.h" |
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23 |
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24 // Stone of Orthanc includes |
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25 #include <Framework/Loaders/WebAssemblyLoadersContext.h> |
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26 //#include <Framework/OpenGL/WebAssemblyOpenGLContext.h> |
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27 #include <Framework/Viewport/WebGLViewport.h> |
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28 #include <Framework/StoneException.h> |
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29 #include <Framework/StoneInitialization.h> |
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30 |
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31 #include <Framework/Loaders/WebAssemblyLoadersContext.h> |
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32 |
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33 #include <Framework/StoneException.h> |
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34 #include <Framework/StoneInitialization.h> |
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35 |
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36 #include <Core/Toolbox.h> |
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37 |
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38 #include <boost/program_options.hpp> |
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39 #include <boost/shared_ptr.hpp> |
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40 // #include <boost/pointer_cast.hpp> this include might be necessary in more recent boost versions |
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41 |
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42 #include <emscripten.h> |
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43 #include <emscripten/html5.h> |
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44 |
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45 |
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46 #define DISPATCH_JAVASCRIPT_EVENT(name) \ |
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47 EM_ASM( \ |
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48 const customEvent = document.createEvent("CustomEvent"); \ |
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49 customEvent.initCustomEvent(name, false, false, undefined); \ |
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50 window.dispatchEvent(customEvent); \ |
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51 ); |
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52 |
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53 #define EXTERN_CATCH_EXCEPTIONS \ |
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54 catch (Orthanc::OrthancException& e) \ |
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55 { \ |
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56 LOG(ERROR) << "OrthancException: " << e.What(); \ |
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57 DISPATCH_JAVASCRIPT_EVENT("StoneException"); \ |
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58 } \ |
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59 catch (OrthancStone::StoneException& e) \ |
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60 { \ |
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61 LOG(ERROR) << "StoneException: " << e.What(); \ |
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62 DISPATCH_JAVASCRIPT_EVENT("StoneException"); \ |
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63 } \ |
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64 catch (std::exception& e) \ |
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65 { \ |
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66 LOG(ERROR) << "Runtime error: " << e.what(); \ |
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67 DISPATCH_JAVASCRIPT_EVENT("StoneException"); \ |
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68 } \ |
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69 catch (...) \ |
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70 { \ |
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71 LOG(ERROR) << "Native exception"; \ |
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72 DISPATCH_JAVASCRIPT_EVENT("StoneException"); \ |
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73 } |
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74 |
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75 namespace OrthancStone |
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76 { |
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77 void RtViewerApp::CreateViewport() |
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78 { |
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79 viewport_ = WebGLViewport::Create("mycanvas1"); |
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80 } |
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81 |
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82 void RtViewerApp::TakeScreenshot(const std::string& target, |
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83 unsigned int canvasWidth, |
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84 unsigned int canvasHeight) |
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85 { |
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86 throw Orthanc::OrthancException(Orthanc::ErrorCode_NotImplemented); |
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87 } |
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88 |
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89 |
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90 void RtViewerApp::RunWasm() |
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91 { |
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92 { |
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93 std::unique_ptr<IViewport::ILock> lock(viewport_->Lock()); |
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94 ViewportController& controller = lock->GetController(); |
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95 Scene2D& scene = controller.GetScene(); |
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96 ICompositor& compositor = lock->GetCompositor(); |
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97 |
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98 controller.FitContent(compositor.GetCanvasWidth(), compositor.GetCanvasHeight()); |
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99 |
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100 compositor.SetFont(0, Orthanc::EmbeddedResources::UBUNTU_FONT, |
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101 FONT_SIZE_0, Orthanc::Encoding_Latin1); |
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102 compositor.SetFont(1, Orthanc::EmbeddedResources::UBUNTU_FONT, |
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103 FONT_SIZE_1, Orthanc::Encoding_Latin1); |
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104 } |
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105 |
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106 loadersContext_.reset(new OrthancStone::WebAssemblyLoadersContext(1, 4, 1)); |
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107 |
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108 // we are in WASM --> downcast to concrete type |
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109 boost::shared_ptr<WebAssemblyLoadersContext> loadersContext = |
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110 boost::dynamic_pointer_cast<WebAssemblyLoadersContext>(loadersContext_); |
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111 |
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112 if (HasArgument("orthanc")) |
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113 loadersContext->SetLocalOrthanc(GetArgument("orthanc")); |
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114 else |
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115 loadersContext->SetLocalOrthanc(".."); |
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116 |
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117 loadersContext->SetDicomCacheSize(128 * 1024 * 1024); // 128MB |
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118 |
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119 PrepareLoadersAndSlicers(); |
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120 |
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121 DefaultViewportInteractor interactor; |
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122 } |
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123 } |
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124 |
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125 extern "C" |
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126 { |
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127 boost::shared_ptr<OrthancStone::RtViewerApp> g_app; |
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128 |
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129 int main(int argc, char const *argv[]) |
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130 { |
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131 try |
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132 { |
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133 OrthancStone::StoneInitialize(); |
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134 Orthanc::Logging::Initialize(); |
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135 Orthanc::Logging::EnableTraceLevel(true); |
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136 |
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137 LOG(WARNING) << "Initializing native Stone"; |
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138 |
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139 LOG(WARNING) << "Compiled with Emscripten " << __EMSCRIPTEN_major__ |
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140 << "." << __EMSCRIPTEN_minor__ |
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141 << "." << __EMSCRIPTEN_tiny__; |
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142 |
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143 LOG(INFO) << "Endianness: " << Orthanc::EnumerationToString(Orthanc::Toolbox::DetectEndianness()); |
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144 |
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145 g_app = OrthancStone::RtViewerApp::Create(); |
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146 |
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147 DISPATCH_JAVASCRIPT_EVENT("WasmModuleInitialized"); |
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148 } |
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149 EXTERN_CATCH_EXCEPTIONS; |
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150 } |
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151 |
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152 EMSCRIPTEN_KEEPALIVE |
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153 void Initialize(const char* canvasId) |
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154 { |
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155 try |
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156 { |
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157 g_app->RunWasm(); |
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158 } |
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159 EXTERN_CATCH_EXCEPTIONS; |
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160 } |
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161 |
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162 EMSCRIPTEN_KEEPALIVE |
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163 void SetArgument(const char* key, const char* value) |
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164 { |
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165 // This is called for each GET argument (cf. "app.js") |
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166 LOG(INFO) << "Received GET argument: [" << key << "] = [" << value << "]"; |
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167 g_app->SetArgument(key, value); |
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168 } |
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169 |
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170 } |