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annotate Framework/Viewport/SdlViewport.cpp @ 1053:32b403a47b19

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simplifying IViewport
author Sebastien Jodogne <s.jodogne@gmail.com>
date Thu, 10 Oct 2019 15:24:48 +0200
parents 6a9300ecfa13
children af456106576c
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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 #include "SdlViewport.h"
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22
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23 #include <Core/OrthancException.h>
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24
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25 #include <boost/make_shared.hpp>
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26
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27 namespace OrthancStone
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28 {
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29 SdlOpenGLViewport::SdlOpenGLViewport(const char* title,
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30 unsigned int width,
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31 unsigned int height,
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32 bool allowDpiScaling) :
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33 SdlViewport(title),
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34 context_(title, width, height, allowDpiScaling)
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35 {
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36 compositor_.reset(new OpenGLCompositor(context_, GetScene()));
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37 }
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38
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39 SdlOpenGLViewport::SdlOpenGLViewport(const char* title,
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40 unsigned int width,
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41 unsigned int height,
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42 boost::shared_ptr<Scene2D>& scene,
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43 bool allowDpiScaling) :
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44 SdlViewport(title, scene),
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45 context_(title, width, height, allowDpiScaling)
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46 {
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47 compositor_.reset(new OpenGLCompositor(context_, GetScene()));
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48 }
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49
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50 void SdlOpenGLViewport::Refresh()
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51 {
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52 compositor_->Refresh();
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53 }
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54
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55
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56 SdlCairoViewport::SdlCairoViewport(const char* title,
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57 unsigned int width,
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58 unsigned int height,
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59 bool allowDpiScaling) :
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60 SdlViewport(title),
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61 window_(title, width, height, false /* enable OpenGL */, allowDpiScaling),
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62 compositor_(GetScene(), width, height)
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63 {
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64 UpdateSdlSurfaceSize(width, height);
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65 }
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66
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67 SdlCairoViewport::~SdlCairoViewport()
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68 {
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69 if (sdlSurface_)
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70 {
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71 SDL_FreeSurface(sdlSurface_);
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72 }
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73 }
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74
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75 void SdlCairoViewport::Refresh()
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76 {
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77 compositor_.Refresh();
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78 window_.Render(sdlSurface_);
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79 }
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80
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81 void SdlCairoViewport::UpdateSize(unsigned int width,
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82 unsigned int height)
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83 {
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84 compositor_.UpdateSize(width, height);
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85 UpdateSdlSurfaceSize(width, height);
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86 Refresh();
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87 }
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88
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89 void SdlCairoViewport::UpdateSdlSurfaceSize(unsigned int width,
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90 unsigned int height)
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91 {
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92 static const uint32_t rmask = 0x00ff0000;
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93 static const uint32_t gmask = 0x0000ff00;
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94 static const uint32_t bmask = 0x000000ff;
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95
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96 sdlSurface_ = SDL_CreateRGBSurfaceFrom((void*)(compositor_.GetCanvas().GetBuffer()), width, height, 32,
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97 compositor_.GetCanvas().GetPitch(), rmask, gmask, bmask, 0);
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98 if (!sdlSurface_)
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99 {
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100 LOG(ERROR) << "Cannot create a SDL surface from a Cairo surface";
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101 throw Orthanc::OrthancException(Orthanc::ErrorCode_InternalError);
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102 }
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103 }
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104 }