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1 | // Copyright (c) 2019 OPEN CASCADE SAS |
2 | // |
3 | // This file is part of the examples of the Open CASCADE Technology software library. |
4 | // |
5 | // Permission is hereby granted, free of charge, to any person obtaining a copy |
6 | // of this software and associated documentation files (the "Software"), to deal |
7 | // in the Software without restriction, including without limitation the rights |
8 | // to use, copy, modify, merge, publish, distribute, sublicense, and/or sell |
9 | // copies of the Software, and to permit persons to whom the Software is |
10 | // furnished to do so, subject to the following conditions: |
11 | // |
12 | // The above copyright notice and this permission notice shall be included in all |
13 | // copies or substantial portions of the Software. |
14 | // |
15 | // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
16 | // IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
17 | // FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE |
18 | // AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
19 | // LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, |
20 | // OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE |
21 | |
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22 | #include <iostream> |
23 | |
24 | #include "WasmOcctView.h" |
25 | |
26 | #include <Message.hxx> |
27 | #include <Message_Messenger.hxx> |
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28 | #include <Message_PrinterSystemLog.hxx> |
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29 | #include <OSD_MemInfo.hxx> |
30 | #include <OSD_Parallel.hxx> |
31 | |
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32 | #include <emscripten.h> |
33 | #include <emscripten/html5.h> |
34 | |
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35 | //! Dummy main loop callback for a single shot. |
36 | extern "C" void onMainLoop() |
37 | { |
38 | // do nothing here - viewer updates are handled on demand |
39 | emscripten_cancel_main_loop(); |
40 | } |
41 | |
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42 | EMSCRIPTEN_KEEPALIVE int main() |
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43 | { |
44 | Message::DefaultMessenger()->Printers().First()->SetTraceLevel (Message_Trace); |
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45 | Handle(Message_PrinterSystemLog) aJSConsolePrinter = new Message_PrinterSystemLog ("webgl-sample", Message_Trace); |
46 | Message::DefaultMessenger()->AddPrinter (aJSConsolePrinter); // open JavaScript console within the Browser to see this output |
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47 | Message::SendTrace() << "Emscripten SDK " << __EMSCRIPTEN_major__ << "." << __EMSCRIPTEN_minor__ << "." << __EMSCRIPTEN_tiny__; |
48 | #if defined(__LP64__) |
49 | Message::SendTrace() << "Architecture: WASM 64-bit"; |
50 | #else |
51 | Message::SendTrace() << "Architecture: WASM 32-bit"; |
52 | #endif |
53 | Message::SendTrace() << "NbLogicalProcessors: " |
54 | << OSD_Parallel::NbLogicalProcessors() |
55 | #ifdef __EMSCRIPTEN_PTHREADS__ |
56 | << " (pthreads ON)" |
57 | #else |
58 | << " (pthreads OFF)" |
59 | #endif |
60 | ; |
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61 | |
62 | // setup a dummy single-shot main loop callback just to shut up a useless Emscripten error message on calling eglSwapInterval() |
63 | emscripten_set_main_loop (onMainLoop, -1, 0); |
64 | |
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65 | WasmOcctView& aViewer = WasmOcctView::Instance(); |
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66 | aViewer.run(); |
67 | Message::DefaultMessenger()->Send (OSD_MemInfo::PrintInfo(), Message_Trace); |
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68 | return 0; |
69 | } |