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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 ORTHANC_ENABLE_SDL == 1
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25
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26 #include "SdlWindow.h"
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27 #include "../../Framework/Viewport/CairoSurface.h"
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28 #include "../../Framework/Viewport/IViewport.h"
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29
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30 #include <boost/thread/mutex.hpp>
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31
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32 namespace OrthancStone
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33 {
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34 class SdlBuffering : public boost::noncopyable
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35 {
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36 private:
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37 boost::mutex mutex_;
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38 std::auto_ptr<CairoSurface> offscreenSurface_;
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39 std::auto_ptr<CairoSurface> onscreenSurface_;
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40 SDL_Surface* sdlSurface_;
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41 bool pendingFrame_;
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42
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43 public:
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44 SdlBuffering();
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45
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46 ~SdlBuffering();
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47
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48 void SetSize(unsigned int width,
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49 unsigned int height,
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50 IViewport& viewport);
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51
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52 // Returns "true" if a new refresh of the display should be
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53 // triggered afterwards
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54 bool RenderOffscreen(IViewport& viewport);
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55
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56 void SwapToScreen(SdlWindow& window);
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57 };
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58 }
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59
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60 #endif
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