Mercurial > hg > orthanc-stone
comparison Applications/Samples/WebAssembly/SingleFrameViewer/SingleFrameViewer.cpp @ 1538:d1806b4e4839
moving OrthancStone/Samples/ as Applications/Samples/
author | Sebastien Jodogne <s.jodogne@gmail.com> |
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date | Tue, 11 Aug 2020 13:24:38 +0200 |
parents | OrthancStone/Samples/WebAssembly/SingleFrameViewer/SingleFrameViewer.cpp@244ad1e4e76a |
children | 4cfdaf4ef3fe |
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1537:de8cf5859e84 | 1538:d1806b4e4839 |
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1 /** | |
2 * Stone of Orthanc | |
3 * Copyright (C) 2012-2016 Sebastien Jodogne, Medical Physics | |
4 * Department, University Hospital of Liege, Belgium | |
5 * Copyright (C) 2017-2020 Osimis S.A., Belgium | |
6 * | |
7 * This program is free software: you can redistribute it and/or | |
8 * modify it under the terms of the GNU Affero General Public License | |
9 * as published by the Free Software Foundation, either version 3 of | |
10 * the License, or (at your option) any later version. | |
11 * | |
12 * This program is distributed in the hope that it will be useful, but | |
13 * WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
15 * Affero General Public License for more details. | |
16 * | |
17 * You should have received a copy of the GNU Affero General Public License | |
18 * along with this program. If not, see <http://www.gnu.org/licenses/>. | |
19 **/ | |
20 | |
21 | |
22 #include "SingleFrameViewerApplication.h" | |
23 | |
24 #include "../../../Sources/Loaders/WebAssemblyLoadersContext.h" | |
25 #include "../../../Sources/StoneException.h" | |
26 #include "../../../Sources/StoneInitialization.h" | |
27 | |
28 #include <Compatibility.h> // For std::unique_ptr<> | |
29 #include <Toolbox.h> | |
30 | |
31 #include <emscripten.h> | |
32 #include <emscripten/html5.h> | |
33 | |
34 | |
35 #define DISPATCH_JAVASCRIPT_EVENT(name) \ | |
36 EM_ASM( \ | |
37 const customEvent = document.createEvent("CustomEvent"); \ | |
38 customEvent.initCustomEvent(name, false, false, undefined); \ | |
39 window.dispatchEvent(customEvent); \ | |
40 ); | |
41 | |
42 #define EXTERN_CATCH_EXCEPTIONS \ | |
43 catch (Orthanc::OrthancException& e) \ | |
44 { \ | |
45 LOG(ERROR) << "OrthancException: " << e.What(); \ | |
46 DISPATCH_JAVASCRIPT_EVENT("StoneException"); \ | |
47 } \ | |
48 catch (OrthancStone::StoneException& e) \ | |
49 { \ | |
50 LOG(ERROR) << "StoneException: " << e.What(); \ | |
51 DISPATCH_JAVASCRIPT_EVENT("StoneException"); \ | |
52 } \ | |
53 catch (std::exception& e) \ | |
54 { \ | |
55 LOG(ERROR) << "Runtime error: " << e.what(); \ | |
56 DISPATCH_JAVASCRIPT_EVENT("StoneException"); \ | |
57 } \ | |
58 catch (...) \ | |
59 { \ | |
60 LOG(ERROR) << "Native exception"; \ | |
61 DISPATCH_JAVASCRIPT_EVENT("StoneException"); \ | |
62 } | |
63 | |
64 | |
65 | |
66 namespace OrthancStone | |
67 { | |
68 } | |
69 | |
70 static std::unique_ptr<OrthancStone::WebAssemblyLoadersContext> context_; | |
71 static boost::shared_ptr<OrthancStone::Application> application_; | |
72 | |
73 extern "C" | |
74 { | |
75 int main(int argc, char const *argv[]) | |
76 { | |
77 try | |
78 { | |
79 Orthanc::Logging::Initialize(); | |
80 Orthanc::Logging::EnableInfoLevel(true); | |
81 //Orthanc::Logging::EnableTraceLevel(true); | |
82 LOG(WARNING) << "Initializing native Stone"; | |
83 | |
84 LOG(WARNING) << "Compiled with Emscripten " << __EMSCRIPTEN_major__ | |
85 << "." << __EMSCRIPTEN_minor__ | |
86 << "." << __EMSCRIPTEN_tiny__; | |
87 | |
88 LOG(INFO) << "Endianness: " << Orthanc::EnumerationToString(Orthanc::Toolbox::DetectEndianness()); | |
89 context_.reset(new OrthancStone::WebAssemblyLoadersContext(1, 4, 1)); | |
90 context_->SetLocalOrthanc(".."); | |
91 context_->SetDicomCacheSize(128 * 1024 * 1024); // 128MB | |
92 | |
93 DISPATCH_JAVASCRIPT_EVENT("WasmModuleInitialized"); | |
94 } | |
95 EXTERN_CATCH_EXCEPTIONS; | |
96 | |
97 return 0; | |
98 } | |
99 | |
100 EMSCRIPTEN_KEEPALIVE | |
101 void InitializeViewport(const char* canvasId) | |
102 { | |
103 try | |
104 { | |
105 if (context_.get() == NULL) | |
106 { | |
107 throw Orthanc::OrthancException(Orthanc::ErrorCode_BadSequenceOfCalls, | |
108 "The loaders context is not available yet"); | |
109 } | |
110 | |
111 if (application_.get() != NULL) | |
112 { | |
113 throw Orthanc::OrthancException(Orthanc::ErrorCode_BadSequenceOfCalls, | |
114 "Only one single viewport is available for this application"); | |
115 } | |
116 | |
117 boost::shared_ptr<OrthancStone::WebGLViewport> viewport(OrthancStone::GetWebGLViewportsRegistry().Add(canvasId)); | |
118 application_ = OrthancStone::Application::Create(*context_, viewport); | |
119 | |
120 { | |
121 OrthancStone::WebGLViewportsRegistry::Accessor accessor( | |
122 OrthancStone::GetWebGLViewportsRegistry(), canvasId); | |
123 | |
124 if (accessor.IsValid()) | |
125 { | |
126 accessor.GetViewport().Invalidate(); | |
127 } | |
128 } | |
129 } | |
130 EXTERN_CATCH_EXCEPTIONS; | |
131 } | |
132 | |
133 | |
134 EMSCRIPTEN_KEEPALIVE | |
135 void LoadFromOrthanc(const char* instance, | |
136 int frame) | |
137 { | |
138 try | |
139 { | |
140 if (application_.get() != NULL) | |
141 { | |
142 OrthancStone::DicomSource source; | |
143 application_->LoadOrthancFrame(source, instance, frame); | |
144 } | |
145 } | |
146 EXTERN_CATCH_EXCEPTIONS; | |
147 } | |
148 | |
149 | |
150 EMSCRIPTEN_KEEPALIVE | |
151 void LoadFromDicomWeb(const char* server, | |
152 const char* studyInstanceUid, | |
153 const char* seriesInstanceUid, | |
154 const char* sopInstanceUid, | |
155 int frame) | |
156 { | |
157 try | |
158 { | |
159 if (application_.get() != NULL) | |
160 { | |
161 OrthancStone::DicomSource source; | |
162 source.SetDicomWebThroughOrthancSource(server); | |
163 application_->LoadDicomWebFrame(source, studyInstanceUid, seriesInstanceUid, | |
164 sopInstanceUid, frame); | |
165 } | |
166 } | |
167 EXTERN_CATCH_EXCEPTIONS; | |
168 } | |
169 } |