Mercurial > hg > orthanc-stone
comparison OrthancStone/Sources/Scene2D/OpenGLCompositor.cpp @ 1512:244ad1e4e76a
reorganization of folders
author | Sebastien Jodogne <s.jodogne@gmail.com> |
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date | Tue, 07 Jul 2020 16:21:02 +0200 |
parents | Framework/Scene2D/OpenGLCompositor.cpp@5c96bf3f1d32 |
children | 85e117739eca |
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1511:9dfeee74c1e6 | 1512:244ad1e4e76a |
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1 /** | |
2 * Stone of Orthanc | |
3 * Copyright (C) 2012-2016 Sebastien Jodogne, Medical Physics | |
4 * Department, University Hospital of Liege, Belgium | |
5 * Copyright (C) 2017-2020 Osimis S.A., Belgium | |
6 * | |
7 * This program is free software: you can redistribute it and/or | |
8 * modify it under the terms of the GNU Affero General Public License | |
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 | |
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
15 * Affero General Public License for more details. | |
16 * | |
17 * You should have received a copy of the GNU Affero General Public License | |
18 * along with this program. If not, see <http://www.gnu.org/licenses/>. | |
19 **/ | |
20 | |
21 #include "OpenGLCompositor.h" | |
22 | |
23 #include "Internals/OpenGLAdvancedPolylineRenderer.h" | |
24 #include "Internals/OpenGLBasicPolylineRenderer.h" | |
25 #include "Internals/OpenGLColorTextureRenderer.h" | |
26 #include "Internals/OpenGLFloatTextureRenderer.h" | |
27 #include "Internals/OpenGLInfoPanelRenderer.h" | |
28 #include "Internals/OpenGLLookupTableTextureRenderer.h" | |
29 #include "Internals/OpenGLTextRenderer.h" | |
30 | |
31 namespace OrthancStone | |
32 { | |
33 class OpenGLCompositor::Font : public boost::noncopyable | |
34 { | |
35 private: | |
36 std::unique_ptr<GlyphTextureAlphabet> alphabet_; | |
37 std::unique_ptr<OpenGL::OpenGLTexture> texture_; | |
38 | |
39 public: | |
40 Font(OpenGL::IOpenGLContext& context, const GlyphBitmapAlphabet& dict) | |
41 { | |
42 alphabet_.reset(new GlyphTextureAlphabet(dict)); | |
43 texture_.reset(new OpenGL::OpenGLTexture(context)); | |
44 | |
45 std::unique_ptr<Orthanc::ImageAccessor> bitmap(alphabet_->ReleaseTexture()); | |
46 texture_->Load(*bitmap, true /* enable linear interpolation */); | |
47 } | |
48 | |
49 OpenGL::OpenGLTexture& GetTexture() const | |
50 { | |
51 assert(texture_.get() != NULL); | |
52 return *texture_; | |
53 } | |
54 | |
55 const GlyphTextureAlphabet& GetAlphabet() const | |
56 { | |
57 assert(alphabet_.get() != NULL); | |
58 return *alphabet_; | |
59 } | |
60 }; | |
61 | |
62 const OpenGLCompositor::Font* OpenGLCompositor::GetFont(size_t fontIndex) const | |
63 { | |
64 Fonts::const_iterator found = fonts_.find(fontIndex); | |
65 | |
66 if (found == fonts_.end()) | |
67 { | |
68 return NULL; // Unknown font, nothing should be drawn | |
69 } | |
70 else | |
71 { | |
72 assert(found->second != NULL); | |
73 return found->second; | |
74 } | |
75 } | |
76 | |
77 Internals::CompositorHelper::ILayerRenderer* OpenGLCompositor::Create(const ISceneLayer& layer) | |
78 { | |
79 if (!context_.IsContextLost()) | |
80 { | |
81 switch (layer.GetType()) | |
82 { | |
83 case ISceneLayer::Type_InfoPanel: | |
84 return new Internals::OpenGLInfoPanelRenderer | |
85 (context_, colorTextureProgram_, dynamic_cast<const InfoPanelSceneLayer&>(layer)); | |
86 | |
87 case ISceneLayer::Type_ColorTexture: | |
88 return new Internals::OpenGLColorTextureRenderer | |
89 (context_, colorTextureProgram_, dynamic_cast<const ColorTextureSceneLayer&>(layer)); | |
90 | |
91 case ISceneLayer::Type_FloatTexture: | |
92 return new Internals::OpenGLFloatTextureRenderer | |
93 (context_, floatTextureProgram_, dynamic_cast<const FloatTextureSceneLayer&>(layer)); | |
94 | |
95 case ISceneLayer::Type_LookupTableTexture: | |
96 return new Internals::OpenGLLookupTableTextureRenderer | |
97 (context_, colorTextureProgram_, dynamic_cast<const LookupTableTextureSceneLayer&>(layer)); | |
98 | |
99 case ISceneLayer::Type_Polyline: | |
100 return new Internals::OpenGLAdvancedPolylineRenderer | |
101 (context_, linesProgram_, dynamic_cast<const PolylineSceneLayer&>(layer)); | |
102 //return new Internals::OpenGLBasicPolylineRenderer(context_, dynamic_cast<const PolylineSceneLayer&>(layer)); | |
103 | |
104 case ISceneLayer::Type_Text: | |
105 { | |
106 const TextSceneLayer& l = dynamic_cast<const TextSceneLayer&>(layer); | |
107 const Font* font = GetFont(l.GetFontIndex()); | |
108 if (font == NULL) | |
109 { | |
110 LOG(WARNING) << "There is no font at index " << l.GetFontIndex(); | |
111 return NULL; | |
112 } | |
113 else | |
114 { | |
115 return new Internals::OpenGLTextRenderer | |
116 (context_, textProgram_, font->GetAlphabet(), font->GetTexture(), l); | |
117 } | |
118 } | |
119 | |
120 default: | |
121 return NULL; | |
122 } | |
123 } | |
124 else | |
125 { | |
126 // context is lost. returning null. | |
127 return NULL; | |
128 } | |
129 } | |
130 | |
131 OpenGLCompositor::OpenGLCompositor(OpenGL::IOpenGLContext& context) : | |
132 context_(context), | |
133 colorTextureProgram_(context), | |
134 floatTextureProgram_(context), | |
135 linesProgram_(context), | |
136 textProgram_(context), | |
137 canvasWidth_(0), | |
138 canvasHeight_(0) | |
139 { | |
140 if (!context_.IsContextLost()) | |
141 { | |
142 canvasWidth_ = context_.GetCanvasWidth(); | |
143 canvasHeight_ = context_.GetCanvasHeight(); | |
144 } | |
145 | |
146 ResetScene(); | |
147 } | |
148 | |
149 OpenGLCompositor::~OpenGLCompositor() | |
150 { | |
151 if (!context_.IsContextLost()) | |
152 { | |
153 try | |
154 { | |
155 try | |
156 { | |
157 context_.MakeCurrent(); // this can throw if context lost! | |
158 } | |
159 catch (...) | |
160 { | |
161 LOG(ERROR) << "context_.MakeCurrent() failed in OpenGLCompositor::~OpenGLCompositor()!"; | |
162 } | |
163 | |
164 for (Fonts::iterator it = fonts_.begin(); it != fonts_.end(); ++it) | |
165 { | |
166 try | |
167 { | |
168 | |
169 assert(it->second != NULL); | |
170 delete it->second; | |
171 } | |
172 catch (...) | |
173 { | |
174 LOG(ERROR) << "Exception thrown while deleting OpenGL-based font!"; | |
175 } | |
176 } | |
177 } | |
178 catch (...) | |
179 { | |
180 // logging threw an exception! | |
181 } | |
182 } | |
183 } | |
184 | |
185 void OpenGLCompositor::Refresh(const Scene2D& scene) | |
186 { | |
187 if (!context_.IsContextLost()) | |
188 { | |
189 context_.MakeCurrent(); // this can throw if context lost! | |
190 canvasWidth_ = context_.GetCanvasWidth(); | |
191 canvasHeight_ = context_.GetCanvasHeight(); | |
192 | |
193 glViewport(0, 0, canvasWidth_, canvasHeight_); | |
194 glClearColor(0, 0, 0, 1); | |
195 glClear(GL_COLOR_BUFFER_BIT); | |
196 | |
197 helper_->Refresh(scene, canvasWidth_, canvasHeight_); | |
198 | |
199 context_.SwapBuffer(); | |
200 } | |
201 } | |
202 | |
203 void OpenGLCompositor::SetFont(size_t index, | |
204 const GlyphBitmapAlphabet& dict) | |
205 { | |
206 if (!context_.IsContextLost()) | |
207 { | |
208 context_.MakeCurrent(); // this can throw if context lost | |
209 | |
210 std::unique_ptr<Font> font(new Font(context_, dict)); | |
211 | |
212 Fonts::iterator found = fonts_.find(index); | |
213 | |
214 if (found == fonts_.end()) | |
215 { | |
216 fonts_[index] = font.release(); | |
217 } | |
218 else | |
219 { | |
220 assert(found->second != NULL); | |
221 delete found->second; | |
222 | |
223 found->second = font.release(); | |
224 } | |
225 } | |
226 } | |
227 | |
228 #if ORTHANC_ENABLE_LOCALE == 1 | |
229 void OpenGLCompositor::SetFont(size_t index, | |
230 const std::string& ttf, | |
231 unsigned int fontSize, | |
232 Orthanc::Encoding codepage) | |
233 { | |
234 if (!context_.IsContextLost()) | |
235 { | |
236 FontRenderer renderer; | |
237 renderer.LoadFont(ttf, fontSize); | |
238 | |
239 GlyphBitmapAlphabet dict; | |
240 dict.LoadCodepage(renderer, codepage); | |
241 | |
242 SetFont(index, dict); | |
243 } | |
244 } | |
245 #endif | |
246 | |
247 | |
248 void OpenGLCompositor::RefreshCanvasSize() | |
249 { | |
250 if (!context_.IsContextLost()) | |
251 { | |
252 context_.MakeCurrent(); // this can throw if context lost! | |
253 context_.RefreshCanvasSize(); // Difference with Refresh(scene) | |
254 canvasWidth_ = context_.GetCanvasWidth(); | |
255 canvasHeight_ = context_.GetCanvasHeight(); | |
256 } | |
257 } | |
258 } |