Mercurial > hg > orthanc-stone
comparison Applications/Platforms/WebAssembly/WebGLViewportsRegistry.h @ 1591:5887a4f8594b
moving platform-specific files out of the "OrthancStone" folder
author | Sebastien Jodogne <s.jodogne@gmail.com> |
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date | Fri, 23 Oct 2020 13:15:03 +0200 |
parents | OrthancStone/Sources/Viewport/WebGLViewportsRegistry.h@85e117739eca |
children | 9ac2a65d4172 |
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1590:7b963bccafef | 1591:5887a4f8594b |
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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 #pragma once | |
23 | |
24 #include "WebGLViewport.h" | |
25 | |
26 #include <boost/enable_shared_from_this.hpp> | |
27 | |
28 namespace OrthancStone | |
29 { | |
30 /** | |
31 * This singleton class must be used if many WebGL viewports are | |
32 * created by the higher-level application, implying possible loss | |
33 * of WebGL contexts. The object will run an infinite update loop | |
34 * that checks whether all the WebGL context are still valid (not | |
35 * lost). If some WebGL context is lost, it is automatically | |
36 * reinitialized by created a fresh HTML5 canvas. | |
37 **/ | |
38 class WebGLViewportsRegistry : public boost::noncopyable, | |
39 public boost::enable_shared_from_this<WebGLViewportsRegistry> | |
40 { | |
41 private: | |
42 typedef std::map<std::string, boost::shared_ptr<WebGLViewport> > Viewports; | |
43 | |
44 double timeoutMS_; | |
45 Viewports viewports_; | |
46 long timeOutID_; | |
47 | |
48 void LaunchTimer(); | |
49 | |
50 void OnTimeout(); | |
51 | |
52 static void OnTimeoutCallback(void *userData); | |
53 | |
54 public: | |
55 explicit WebGLViewportsRegistry(double timeoutMS /* in milliseconds */); | |
56 | |
57 ~WebGLViewportsRegistry(); | |
58 | |
59 boost::shared_ptr<WebGLViewport> Add(const std::string& canvasId); | |
60 | |
61 void Remove(const std::string& canvasId); | |
62 | |
63 void Clear(); | |
64 | |
65 class Accessor : public boost::noncopyable | |
66 { | |
67 private: | |
68 WebGLViewportsRegistry& that_; | |
69 std::unique_ptr<IViewport::ILock> lock_; | |
70 | |
71 public: | |
72 Accessor(WebGLViewportsRegistry& that, | |
73 const std::string& canvasId); | |
74 | |
75 bool IsValid() const | |
76 { | |
77 return lock_.get() != NULL; | |
78 } | |
79 | |
80 IViewport::ILock& GetViewport() const; | |
81 }; | |
82 | |
83 | |
84 | |
85 static void FinalizeGlobalRegistry(); | |
86 | |
87 static void SetGlobalRegistryTimeout(double timeout); | |
88 | |
89 static WebGLViewportsRegistry& GetGlobalRegistry(); | |
90 }; | |
91 } |