annotate Applications/Sdl/SdlOrthancSurface.cpp @ 598:a806abb497b8

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author Sebastien Jodogne <s.jodogne@gmail.com>
date Fri, 26 Apr 2019 17:57:57 +0200
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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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22 #include "SdlOrthancSurface.h"
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24 #if ORTHANC_ENABLE_SDL == 1
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25
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26 #include <Core/Logging.h>
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27 #include <Core/OrthancException.h>
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28 #include <Core/Images/Image.h>
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29
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30 namespace OrthancStone
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31 {
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32 SdlOrthancSurface::SdlOrthancSurface(SdlWindow& window) :
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33 window_(window),
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34 sdlSurface_(NULL)
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35 {
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36 }
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39 SdlOrthancSurface::~SdlOrthancSurface()
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40 {
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41 if (sdlSurface_)
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42 {
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43 SDL_FreeSurface(sdlSurface_);
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44 }
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45 }
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48 void SdlOrthancSurface::SetSize(unsigned int width,
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49 unsigned int height)
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50 {
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51 if (image_.get() == NULL ||
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52 image_->GetWidth() != width ||
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53 image_->GetHeight() != height)
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54 {
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55 image_.reset(new Orthanc::Image(Orthanc::PixelFormat_BGRA32, width, height, true)); // (*)
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57 if (image_->GetPitch() != image_->GetWidth() * 4)
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58 {
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59 // This should have been ensured by setting "forceMinimalPitch" to "true" (*)
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60 throw Orthanc::OrthancException(Orthanc::ErrorCode_InternalError);
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61 }
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62
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63 // TODO Big endian?
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64 static const uint32_t rmask = 0x00ff0000;
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65 static const uint32_t gmask = 0x0000ff00;
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66 static const uint32_t bmask = 0x000000ff;
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67
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68 if (sdlSurface_)
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69 {
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70 SDL_FreeSurface(sdlSurface_);
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71 }
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72
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73 sdlSurface_ = SDL_CreateRGBSurfaceFrom(image_->GetBuffer(), width, height, 32,
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74 image_->GetPitch(), rmask, gmask, bmask, 0);
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75 if (!sdlSurface_)
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76 {
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77 LOG(ERROR) << "Cannot create a SDL surface from a Orthanc surface";
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78 throw Orthanc::OrthancException(Orthanc::ErrorCode_InternalError);
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79 }
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80 }
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81 }
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82
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83
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84 Orthanc::ImageAccessor& SdlOrthancSurface::GetImage()
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85 {
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86 if (image_.get() == NULL)
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87 {
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88 throw Orthanc::OrthancException(Orthanc::ErrorCode_BadSequenceOfCalls);
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89 }
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90
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91 return *image_;
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92 }
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93
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94
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95 void SdlOrthancSurface::Render()
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96 {
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97 if (image_.get() == NULL)
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98 {
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99 throw Orthanc::OrthancException(Orthanc::ErrorCode_BadSequenceOfCalls);
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100 }
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101
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102 window_.Render(sdlSurface_);
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103 }
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104 }
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105
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106 #endif