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comparison Resources/Graveyard/Threading/SdlBuffering.h @ 56:9e3c2e75b870 wasm

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extremely simplified SDL engine
author Sebastien Jodogne <s.jodogne@gmail.com>
date Fri, 28 Apr 2017 21:46:41 +0200
parents Applications/Sdl/SdlBuffering.h@b340879da9bd
children e2fe9352f240
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55:f0f354a97581 56:9e3c2e75b870
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 Osimis, 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 #if ORTHANC_ENABLE_SDL == 1
25
26 #include "SdlWindow.h"
27 #include "../../Framework/Viewport/CairoSurface.h"
28 #include "../../Framework/Viewport/IViewport.h"
29
30 #include <boost/thread/mutex.hpp>
31
32 namespace OrthancStone
33 {
34 class SdlBuffering : public boost::noncopyable
35 {
36 private:
37 boost::mutex mutex_;
38 std::auto_ptr<CairoSurface> offscreenSurface_;
39 std::auto_ptr<CairoSurface> onscreenSurface_;
40 SDL_Surface* sdlSurface_;
41 bool pendingFrame_;
42
43 public:
44 SdlBuffering();
45
46 ~SdlBuffering();
47
48 void SetSize(unsigned int width,
49 unsigned int height,
50 IViewport& viewport);
51
52 // Returns "true" if a new refresh of the display should be
53 // triggered afterwards
54 bool RenderOffscreen(IViewport& viewport);
55
56 void SwapToScreen(SdlWindow& window);
57 };
58 }
59
60 #endif