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annotate Framework/Viewport/SdlViewport.cpp @ 1045:6a9300ecfa13

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tests for context loss are now restricted to WebAssembly
author Sebastien Jodogne <s.jodogne@gmail.com>
date Wed, 09 Oct 2019 17:17:56 +0200
parents a7351ad54960
children 32b403a47b19
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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 if (GetCompositor())
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53 {
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54 GetCompositor()->Refresh();
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55 }
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56 }
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57
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58
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59 SdlCairoViewport::SdlCairoViewport(const char* title,
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60 unsigned int width,
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61 unsigned int height,
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62 bool allowDpiScaling) :
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63 SdlViewport(title),
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64 window_(title, width, height, false /* enable OpenGL */, allowDpiScaling),
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65 compositor_(GetScene(), width, height)
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66 {
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67 UpdateSdlSurfaceSize(width, height);
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68 }
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69
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70 SdlCairoViewport::~SdlCairoViewport()
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71 {
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72 if (sdlSurface_)
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73 {
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74 SDL_FreeSurface(sdlSurface_);
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75 }
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76 }
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77
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78 void SdlCairoViewport::Refresh()
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79 {
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80 GetCompositor()->Refresh();
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81 window_.Render(sdlSurface_);
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82 }
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83
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84 void SdlCairoViewport::UpdateSize(unsigned int width,
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85 unsigned int height)
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86 {
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87 compositor_.UpdateSize(width, height);
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88 UpdateSdlSurfaceSize(width, height);
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89 Refresh();
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90 }
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91
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92 void SdlCairoViewport::UpdateSdlSurfaceSize(unsigned int width,
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93 unsigned int height)
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94 {
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95 static const uint32_t rmask = 0x00ff0000;
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96 static const uint32_t gmask = 0x0000ff00;
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97 static const uint32_t bmask = 0x000000ff;
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98
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99 sdlSurface_ = SDL_CreateRGBSurfaceFrom((void*)(compositor_.GetCanvas().GetBuffer()), width, height, 32,
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100 compositor_.GetCanvas().GetPitch(), rmask, gmask, bmask, 0);
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101 if (!sdlSurface_)
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102 {
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103 LOG(ERROR) << "Cannot create a SDL surface from a Cairo surface";
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104 throw Orthanc::OrthancException(Orthanc::ErrorCode_InternalError);
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105 }
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106 }
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107
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108 }