Mercurial > hg > orthanc-stone
annotate OrthancStone/Sources/Scene2D/OpenGLCompositor.cpp @ 1611:787db80a5a1b
new class MacroLayerRenderer
| author | Sebastien Jodogne <s.jodogne@gmail.com> |
|---|---|
| date | Thu, 29 Oct 2020 18:02:03 +0100 |
| parents | 8563ea5d8ae4 |
| children | ad9b425f27ae |
| rev | line source |
|---|---|
| 594 | 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) 2017-2020 Osimis S.A., Belgium |
| 594 | 6 * |
| 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 Lesser General Public License |
| 594 | 9 * as published by the Free Software Foundation, either version 3 of |
| 10 * the License, or (at your option) any later version. | |
| 11 * | |
| 12 * This program is distributed in the hope that it will be useful, but | |
| 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 * Lesser 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 Lesser General Public |
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18 * License along with this program. If not, see |
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19 * <http://www.gnu.org/licenses/>. |
| 594 | 20 **/ |
| 21 | |
| 22 #include "OpenGLCompositor.h" | |
| 23 | |
| 24 #include "Internals/OpenGLAdvancedPolylineRenderer.h" | |
| 25 #include "Internals/OpenGLBasicPolylineRenderer.h" | |
| 26 #include "Internals/OpenGLColorTextureRenderer.h" | |
| 27 #include "Internals/OpenGLFloatTextureRenderer.h" | |
| 28 #include "Internals/OpenGLInfoPanelRenderer.h" | |
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29 #include "Internals/OpenGLLookupTableTextureRenderer.h" |
| 594 | 30 #include "Internals/OpenGLTextRenderer.h" |
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31 #include "Internals/MacroLayerRenderer.h" |
| 594 | 32 |
| 33 namespace OrthancStone | |
| 34 { | |
| 35 class OpenGLCompositor::Font : public boost::noncopyable | |
| 36 { | |
| 37 private: | |
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38 std::unique_ptr<GlyphTextureAlphabet> alphabet_; |
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39 std::unique_ptr<OpenGL::OpenGLTexture> texture_; |
| 594 | 40 |
| 41 public: | |
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42 Font(OpenGL::IOpenGLContext& context, const GlyphBitmapAlphabet& dict) |
| 594 | 43 { |
| 44 alphabet_.reset(new GlyphTextureAlphabet(dict)); | |
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45 texture_.reset(new OpenGL::OpenGLTexture(context)); |
| 594 | 46 |
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47 std::unique_ptr<Orthanc::ImageAccessor> bitmap(alphabet_->ReleaseTexture()); |
| 594 | 48 texture_->Load(*bitmap, true /* enable linear interpolation */); |
| 49 } | |
| 50 | |
| 51 OpenGL::OpenGLTexture& GetTexture() const | |
| 52 { | |
| 53 assert(texture_.get() != NULL); | |
| 54 return *texture_; | |
| 55 } | |
| 56 | |
| 57 const GlyphTextureAlphabet& GetAlphabet() const | |
| 58 { | |
| 59 assert(alphabet_.get() != NULL); | |
| 60 return *alphabet_; | |
| 61 } | |
| 62 }; | |
| 63 | |
| 64 const OpenGLCompositor::Font* OpenGLCompositor::GetFont(size_t fontIndex) const | |
| 65 { | |
| 66 Fonts::const_iterator found = fonts_.find(fontIndex); | |
| 67 | |
| 68 if (found == fonts_.end()) | |
| 69 { | |
| 70 return NULL; // Unknown font, nothing should be drawn | |
| 71 } | |
| 72 else | |
| 73 { | |
| 74 assert(found->second != NULL); | |
| 75 return found->second; | |
| 76 } | |
| 77 } | |
| 78 | |
| 79 Internals::CompositorHelper::ILayerRenderer* OpenGLCompositor::Create(const ISceneLayer& layer) | |
| 80 { | |
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81 if (!context_.IsContextLost()) |
| 594 | 82 { |
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83 switch (layer.GetType()) |
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84 { |
| 594 | 85 case ISceneLayer::Type_InfoPanel: |
| 86 return new Internals::OpenGLInfoPanelRenderer | |
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87 (context_, colorTextureProgram_, dynamic_cast<const InfoPanelSceneLayer&>(layer)); |
| 594 | 88 |
| 89 case ISceneLayer::Type_ColorTexture: | |
| 90 return new Internals::OpenGLColorTextureRenderer | |
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91 (context_, colorTextureProgram_, dynamic_cast<const ColorTextureSceneLayer&>(layer)); |
| 594 | 92 |
| 93 case ISceneLayer::Type_FloatTexture: | |
| 94 return new Internals::OpenGLFloatTextureRenderer | |
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95 (context_, floatTextureProgram_, dynamic_cast<const FloatTextureSceneLayer&>(layer)); |
| 594 | 96 |
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97 case ISceneLayer::Type_LookupTableTexture: |
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98 return new Internals::OpenGLLookupTableTextureRenderer |
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99 (context_, colorTextureProgram_, dynamic_cast<const LookupTableTextureSceneLayer&>(layer)); |
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100 |
| 594 | 101 case ISceneLayer::Type_Polyline: |
| 102 return new Internals::OpenGLAdvancedPolylineRenderer | |
| 1571 | 103 (context_, linesProgram_, dynamic_cast<const PolylineSceneLayer&>(layer)); |
| 594 | 104 //return new Internals::OpenGLBasicPolylineRenderer(context_, dynamic_cast<const PolylineSceneLayer&>(layer)); |
| 105 | |
| 106 case ISceneLayer::Type_Text: | |
| 107 { | |
| 108 const TextSceneLayer& l = dynamic_cast<const TextSceneLayer&>(layer); | |
| 109 const Font* font = GetFont(l.GetFontIndex()); | |
| 110 if (font == NULL) | |
| 111 { | |
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112 LOG(WARNING) << "There is no font at index " << l.GetFontIndex(); |
| 594 | 113 return NULL; |
| 114 } | |
| 115 else | |
| 116 { | |
| 117 return new Internals::OpenGLTextRenderer | |
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118 (context_, textProgram_, font->GetAlphabet(), font->GetTexture(), l); |
| 594 | 119 } |
| 120 } | |
| 121 | |
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122 case ISceneLayer::Type_Macro: |
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123 return new Internals::MacroLayerRenderer(*this, layer); |
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124 |
| 594 | 125 default: |
| 126 return NULL; | |
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127 } |
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128 } |
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129 else |
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130 { |
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131 // context is lost. returning null. |
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132 return NULL; |
| 594 | 133 } |
| 134 } | |
| 135 | |
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136 OpenGLCompositor::OpenGLCompositor(OpenGL::IOpenGLContext& context) : |
| 594 | 137 context_(context), |
| 138 colorTextureProgram_(context), | |
| 139 floatTextureProgram_(context), | |
| 140 linesProgram_(context), | |
| 141 textProgram_(context), | |
| 142 canvasWidth_(0), | |
| 143 canvasHeight_(0) | |
| 144 { | |
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145 ResetScene(); |
| 594 | 146 } |
| 147 | |
| 148 OpenGLCompositor::~OpenGLCompositor() | |
| 149 { | |
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150 if (!context_.IsContextLost()) |
| 594 | 151 { |
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152 try |
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153 { |
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154 try |
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155 { |
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156 context_.MakeCurrent(); // this can throw if context lost! |
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157 } |
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158 catch (...) |
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159 { |
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160 LOG(ERROR) << "context_.MakeCurrent() failed in OpenGLCompositor::~OpenGLCompositor()!"; |
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161 } |
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162 |
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163 for (Fonts::iterator it = fonts_.begin(); it != fonts_.end(); ++it) |
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164 { |
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165 try |
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166 { |
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167 |
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168 assert(it->second != NULL); |
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169 delete it->second; |
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170 } |
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171 catch (...) |
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172 { |
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173 LOG(ERROR) << "Exception thrown while deleting OpenGL-based font!"; |
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174 } |
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175 } |
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176 } |
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177 catch (...) |
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178 { |
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179 // logging threw an exception! |
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180 } |
| 594 | 181 } |
| 182 } | |
| 183 | |
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184 void OpenGLCompositor::Refresh(const Scene2D& scene) |
| 594 | 185 { |
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186 if (!context_.IsContextLost()) |
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187 { |
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188 context_.MakeCurrent(); // this can throw if context lost! |
| 594 | 189 |
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190 glViewport(0, 0, canvasWidth_, canvasHeight_); |
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191 glClearColor(0, 0, 0, 1); |
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192 glClear(GL_COLOR_BUFFER_BIT); |
| 594 | 193 |
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194 helper_->Refresh(scene, canvasWidth_, canvasHeight_); |
| 594 | 195 |
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196 context_.SwapBuffer(); |
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197 } |
| 594 | 198 } |
| 199 | |
| 200 void OpenGLCompositor::SetFont(size_t index, | |
| 201 const GlyphBitmapAlphabet& dict) | |
| 202 { | |
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203 if (!context_.IsContextLost()) |
| 594 | 204 { |
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205 context_.MakeCurrent(); // this can throw if context lost |
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206 |
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207 std::unique_ptr<Font> font(new Font(context_, dict)); |
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208 |
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209 Fonts::iterator found = fonts_.find(index); |
| 594 | 210 |
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211 if (found == fonts_.end()) |
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212 { |
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213 fonts_[index] = font.release(); |
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214 } |
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215 else |
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216 { |
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217 assert(found->second != NULL); |
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218 delete found->second; |
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219 |
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220 found->second = font.release(); |
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221 } |
| 594 | 222 } |
| 223 } | |
| 224 | |
| 225 #if ORTHANC_ENABLE_LOCALE == 1 | |
| 226 void OpenGLCompositor::SetFont(size_t index, | |
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227 const std::string& ttf, |
| 594 | 228 unsigned int fontSize, |
| 229 Orthanc::Encoding codepage) | |
| 230 { | |
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231 if (!context_.IsContextLost()) |
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232 { |
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233 FontRenderer renderer; |
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234 renderer.LoadFont(ttf, fontSize); |
| 594 | 235 |
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236 GlyphBitmapAlphabet dict; |
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237 dict.LoadCodepage(renderer, codepage); |
| 594 | 238 |
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239 SetFont(index, dict); |
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240 } |
| 594 | 241 } |
| 242 #endif | |
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IOpenGL::RefreshCanvasSize()
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243 |
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IOpenGL::RefreshCanvasSize()
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244 |
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245 void OpenGLCompositor::SetCanvasSize(unsigned int canvasWidth, |
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246 unsigned int canvasHeight) |
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247 { |
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248 canvasWidth_ = canvasWidth; |
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249 canvasHeight_ = canvasHeight; |
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250 } |
| 594 | 251 } |