Mercurial > hg > orthanc-stone
annotate OrthancStone/Sources/Scene2D/Internals/CompositorHelper.cpp @ 2035:a73a8415780f deep-learning
added OpenGLTexture::SetClampingToZero()
author | Sebastien Jodogne <s.jodogne@gmail.com> |
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date | Fri, 27 Jan 2023 19:03:47 +0100 |
parents | 7053b8a0aaec |
children | 07964689cb0b |
rev | line source |
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585 | 1 /** |
2 * Stone of Orthanc | |
3 * Copyright (C) 2012-2016 Sebastien Jodogne, Medical Physics | |
4 * Department, University Hospital of Liege, Belgium | |
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5 * Copyright (C) 2017-2022 Osimis S.A., Belgium |
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6 * Copyright (C) 2021-2022 Sebastien Jodogne, ICTEAM UCLouvain, Belgium |
585 | 7 * |
8 * This program is free software: you can redistribute it and/or | |
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9 * modify it under the terms of the GNU Lesser General Public License |
585 | 10 * as published by the Free Software Foundation, either version 3 of |
11 * the License, or (at your option) any later version. | |
12 * | |
13 * This program is distributed in the hope that it will be useful, but | |
14 * WITHOUT ANY WARRANTY; without even the implied warranty of | |
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15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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16 * Lesser General Public License for more details. |
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17 * |
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18 * You should have received a copy of the GNU Lesser General Public |
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19 * License along with this program. If not, see |
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20 * <http://www.gnu.org/licenses/>. |
585 | 21 **/ |
22 | |
23 | |
24 #include "CompositorHelper.h" | |
25 | |
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26 #include <OrthancException.h> |
585 | 27 |
28 namespace OrthancStone | |
29 { | |
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30 namespace Internals |
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32 class CompositorHelper::Item : public boost::noncopyable |
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33 { |
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34 private: |
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35 std::unique_ptr<ILayerRenderer> renderer_; |
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36 const ISceneLayer& layer_; |
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37 uint64_t layerIdentifier_; |
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38 uint64_t lastRevision_; |
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39 |
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40 public: |
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41 Item(ILayerRenderer* renderer, // Takes ownership |
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42 const ISceneLayer& layer, |
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43 uint64_t layerIdentifier) : |
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44 renderer_(renderer), |
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45 layer_(layer), |
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46 layerIdentifier_(layerIdentifier), |
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47 lastRevision_(layer.GetRevision()) |
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48 { |
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49 if (renderer == NULL) |
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50 { |
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51 throw Orthanc::OrthancException(Orthanc::ErrorCode_NullPointer); |
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52 } |
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53 } |
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54 |
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55 ILayerRenderer& GetRenderer() const |
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56 { |
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57 assert(renderer_.get() != NULL); |
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58 return *renderer_; |
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59 } |
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60 |
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61 const ISceneLayer& GetLayer() const |
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62 { |
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63 return layer_; |
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64 } |
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65 |
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66 uint64_t GetLayerIdentifier() const |
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67 { |
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68 return layerIdentifier_; |
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69 } |
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70 |
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71 uint64_t GetLastRevision() const |
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72 { |
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73 return lastRevision_; |
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74 } |
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75 |
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76 void UpdateRenderer() |
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77 { |
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78 assert(renderer_.get() != NULL); |
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79 renderer_->Update(layer_); |
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80 lastRevision_ = layer_.GetRevision(); |
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81 } |
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82 }; |
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83 |
585 | 84 |
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85 void CompositorHelper::Visit(const Scene2D& scene, |
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86 const ISceneLayer& layer, |
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87 uint64_t layerIdentifier, |
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88 int depth) |
585 | 89 { |
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90 // "Visit()" is only applied to layers existing in the scene |
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91 assert(scene.HasLayer(depth)); |
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92 |
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93 Content::iterator found = content_.find(depth); |
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94 |
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95 assert(found == content_.end() || |
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96 found->second != NULL); |
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97 |
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98 if (found == content_.end() || |
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99 found->second->GetLayerIdentifier() != layerIdentifier) |
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101 // This is the first time this layer is rendered, or the layer |
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102 // is not the same as before |
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103 if (found != content_.end()) |
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104 { |
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105 delete found->second; |
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106 content_.erase(found); |
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107 } |
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108 |
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110 // or a NullLayer | |
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111 std::unique_ptr<ILayerRenderer> renderer(factory_.Create(layer)); |
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112 |
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113 if (renderer.get() != NULL) |
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114 { |
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115 renderer->Render(sceneTransform_, canvasWidth_, canvasHeight_); |
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116 content_[depth] = new Item(renderer.release(), layer, layerIdentifier); |
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117 } |
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118 } |
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119 else |
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120 { |
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121 // This layer has already been rendered |
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122 assert(found->second->GetLastRevision() <= layer.GetRevision()); |
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124 if (found->second->GetLastRevision() < layer.GetRevision()) |
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125 { |
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126 found->second->UpdateRenderer(); |
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127 } |
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128 |
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129 found->second->GetRenderer().Render(sceneTransform_, canvasWidth_, canvasHeight_); |
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130 } |
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131 |
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132 // Check invariants |
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133 assert(content_.find(depth) == content_.end() || |
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134 (content_[depth]->GetLayerIdentifier() == layerIdentifier && |
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135 content_[depth]->GetLastRevision() == layer.GetRevision())); |
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136 } |
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137 |
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138 |
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139 CompositorHelper::~CompositorHelper() |
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140 { |
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141 for (Content::iterator it = content_.begin(); it != content_.end(); ++it) |
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142 { |
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143 assert(it->second != NULL); |
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144 delete it->second; |
585 | 145 } |
146 } | |
147 | |
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148 |
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149 void CompositorHelper::Refresh(const Scene2D& scene, |
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150 unsigned int canvasWidth, |
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151 unsigned int canvasHeight) |
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153 /** |
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154 * Safeguard mechanism to enforce the fact that the same scene |
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155 * is always used with the compositor. Note that the safeguard |
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156 * is not 100% bullet-proof, as a new scene might reuse the same |
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157 * address as a previous scene. |
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158 **/ |
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159 if (lastScene_ != NULL && |
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160 lastScene_ != &scene) |
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161 { |
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162 throw Orthanc::OrthancException(Orthanc::ErrorCode_BadSequenceOfCalls, |
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163 "ICompositor::ResetScene() should have been called"); |
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164 } |
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165 |
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166 lastScene_ = &scene; |
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167 |
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168 // Bring coordinate (0,0) to the center of the canvas |
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169 AffineTransform2D offset = AffineTransform2D::CreateOffset( |
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170 static_cast<double>(canvasWidth) / 2.0, |
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171 static_cast<double>(canvasHeight) / 2.0); |
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173 sceneTransform_ = AffineTransform2D::Combine(offset, scene.GetSceneToCanvasTransform()); |
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174 canvasWidth_ = canvasWidth; |
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175 canvasHeight_ = canvasHeight; |
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176 scene.Apply(*this); |
585 | 177 } |
178 } | |
179 } |