Mercurial > hg > orthanc-stone
annotate Framework/Viewport/WebAssemblyViewport.h @ 1232:a28861abf888 broker
viewports for WebAssembly
author | Sebastien Jodogne <s.jodogne@gmail.com> |
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date | Mon, 09 Dec 2019 17:46:33 +0100 |
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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) 2017-2019 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 |
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22 #pragma once |
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23 |
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24 #if !defined(ORTHANC_ENABLE_WASM) |
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25 # error Macro ORTHANC_ENABLE_WASM must be defined |
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26 #endif |
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27 |
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28 #if ORTHANC_ENABLE_WASM != 1 |
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29 # error This file can only be used if targeting WebAssembly |
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30 #endif |
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31 |
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32 #include "IViewport.h" |
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33 |
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34 #include <emscripten.h> |
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35 #include <emscripten/html5.h> |
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36 |
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37 namespace OrthancStone |
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38 { |
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39 class WebAssemblyViewport : public IViewport |
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40 { |
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41 private: |
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42 class WasmLock; |
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43 |
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44 std::string shortCanvasId_; |
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45 std::string fullCanvasId_; |
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46 std::auto_ptr<ICompositor> compositor_; |
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47 boost::shared_ptr<ViewportController> controller_; |
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48 std::auto_ptr<IViewportInteractor> interactor_; |
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49 |
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50 static EM_BOOL OnRequestAnimationFrame(double time, void *userData); |
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51 |
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52 static EM_BOOL OnResize(int eventType, const EmscriptenUiEvent *uiEvent, void *userData); |
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53 |
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54 static EM_BOOL OnMouseDown(int eventType, const EmscriptenMouseEvent *mouseEvent, void *userData); |
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55 |
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56 static EM_BOOL OnMouseMove(int eventType, const EmscriptenMouseEvent *mouseEvent, void *userData); |
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57 |
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58 static EM_BOOL OnMouseUp(int eventType, const EmscriptenMouseEvent *mouseEvent, void *userData); |
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59 |
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60 protected: |
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61 void Invalidate(); |
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62 |
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63 void ClearCompositor() |
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64 { |
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65 compositor_.reset(); |
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66 } |
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67 |
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68 bool HasCompositor() const |
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69 { |
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70 return compositor_.get() != NULL; |
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71 } |
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72 |
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73 void AcquireCompositor(ICompositor* compositor /* takes ownership */); |
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74 |
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75 virtual void Paint(ICompositor& compositor, |
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76 ViewportController& controller) = 0; |
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77 |
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78 virtual void UpdateSize(ICompositor& compositor) = 0; |
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79 |
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80 public: |
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81 WebAssemblyViewport(const std::string& canvasId, |
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82 const Scene2D* scene); |
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83 |
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84 virtual ILock* Lock() ORTHANC_OVERRIDE; |
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85 |
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86 void AcquireInteractor(IViewportInteractor* interactor); |
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87 |
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88 const std::string& GetShortCanvasId() const |
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89 { |
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90 return shortCanvasId_; |
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91 } |
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92 |
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93 const std::string& GetFullCanvasId() const |
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94 { |
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95 return fullCanvasId_; |
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96 } |
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97 }; |
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98 } |