Mercurial > hg > orthanc-stone

annotate Framework/Scene2D/Internals/CompositorHelper.cpp @ 1205:6009c59d8676 broker

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fix to sdl
author Sebastien Jodogne <s.jodogne@gmail.com>
date Mon, 02 Dec 2019 14:32:05 +0100
parents 6e888cf6a48b
children d10d2acb8a02
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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 #include "CompositorHelper.h"
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23
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24 #include <Core/OrthancException.h>
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25
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26 namespace OrthancStone
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27 {
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28 namespace Internals
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29 {
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30 class CompositorHelper::Item : public boost::noncopyable
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31 {
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32 private:
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33 std::auto_ptr<ILayerRenderer> renderer_;
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34 const ISceneLayer& layer_;
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35 uint64_t layerIdentifier_;
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36 uint64_t lastRevision_;
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37
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38 public:
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39 Item(ILayerRenderer* renderer, // Takes ownership
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40 const ISceneLayer& layer,
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41 uint64_t layerIdentifier) :
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42 renderer_(renderer),
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43 layer_(layer),
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44 layerIdentifier_(layerIdentifier),
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45 lastRevision_(layer.GetRevision())
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46 {
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47 if (renderer == NULL)
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48 {
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49 throw Orthanc::OrthancException(Orthanc::ErrorCode_NullPointer);
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50 }
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51 }
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52
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53 ILayerRenderer& GetRenderer() const
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54 {
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55 assert(renderer_.get() != NULL);
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56 return *renderer_;
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57 }
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58
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59 const ISceneLayer& GetLayer() const
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60 {
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61 return layer_;
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62 }
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63
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64 uint64_t GetLayerIdentifier() const
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65 {
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66 return layerIdentifier_;
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67 }
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68
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69 uint64_t GetLastRevision() const
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70 {
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71 return lastRevision_;
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72 }
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73
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74 void UpdateRenderer()
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75 {
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76 assert(renderer_.get() != NULL);
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77 renderer_->Update(layer_);
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78 lastRevision_ = layer_.GetRevision();
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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 void CompositorHelper::Visit(const ISceneLayer& layer,
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84 uint64_t layerIdentifier,
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85 int depth)
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86 {
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87 // "Visit()" is only applied to layers existing in the scene
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88 assert(scene_.HasLayer(depth));
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89
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90 Content::iterator found = content_.find(depth);
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91
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92 assert(found == content_.end() ||
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93 found->second != NULL);
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94
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95 if (found == content_.end() ||
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96 found->second->GetLayerIdentifier() != layerIdentifier)
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97 {
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98 // This is the first time this layer is rendered, or the layer
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99 // is not the same as before
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100 if (found != content_.end())
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101 {
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102 delete found->second;
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103 content_.erase(found);
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104 }
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105
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106 std::auto_ptr<ILayerRenderer> renderer(factory_.Create(layer));
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107
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108 if (renderer.get() != NULL)
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109 {
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110 renderer->Render(sceneTransform_, canvasWidth_, canvasHeight_);
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111 content_[depth] = new Item(renderer.release(), layer, layerIdentifier);
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112 }
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113 }
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114 else
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115 {
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116 // This layer has already been rendered
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117 assert(found->second->GetLastRevision() <= layer.GetRevision());
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118
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119 if (found->second->GetLastRevision() < layer.GetRevision())
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120 {
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121 found->second->UpdateRenderer();
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122 }
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123
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124 found->second->GetRenderer().Render(sceneTransform_, canvasWidth_, canvasHeight_);
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125 }
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126
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127 // Check invariants
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128 assert(content_.find(depth) == content_.end() ||
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129 (content_[depth]->GetLayerIdentifier() == layerIdentifier &&
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130 content_[depth]->GetLastRevision() == layer.GetRevision()));
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131 }
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132
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133
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134 CompositorHelper::~CompositorHelper()
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135 {
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136 for (Content::iterator it = content_.begin(); it != content_.end(); ++it)
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137 {
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138 assert(it->second != NULL);
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139 delete it->second;
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140 }
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141 }
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142
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143
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Sebastien Jodogne <s.jodogne@gmail.com>
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144 void CompositorHelper::Refresh(unsigned int canvasWidth,
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145 unsigned int canvasHeight)
585
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146 {
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147 // Bring coordinate (0,0) to the center of the canvas
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148 AffineTransform2D offset = AffineTransform2D::CreateOffset(
6bf8f881fcb5 OpenGLBasicPolylineRenderer
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parents: 585
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149 static_cast<double>(canvasWidth) / 2.0,
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150 static_cast<double>(canvasHeight) / 2.0);
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151
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152 sceneTransform_ = AffineTransform2D::Combine(offset, scene_.GetSceneToCanvasTransform());
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153 canvasWidth_ = canvasWidth;
6e888cf6a48b renderers now have access to canvas width/height
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 602
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154 canvasHeight_ = canvasHeight;
593
6bf8f881fcb5 OpenGLBasicPolylineRenderer
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 585
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155 scene_.Apply(*this);
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156 }
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157 }
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158 }