Mercurial > hg > orthanc-stone
annotate OrthancStone/Sources/Fonts/GlyphTextureAlphabet.cpp @ 1891:3716d72161d2
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author | Sebastien Jodogne <s.jodogne@gmail.com> |
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date | Wed, 19 Jan 2022 12:32:15 +0100 |
parents | 7053b8a0aaec |
children | 07964689cb0b |
rev | line source |
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577 | 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 |
577 | 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 |
577 | 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/>. |
577 | 21 **/ |
22 | |
23 | |
24 #include "GlyphTextureAlphabet.h" | |
25 | |
26 #include "TextBoundingBox.h" | |
27 #include "../Toolbox/DynamicBitmap.h" | |
28 | |
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29 #include <Images/Image.h> |
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30 #include <Images/ImageProcessing.h> |
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31 #include <OrthancException.h> |
577 | 32 |
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33 #if defined(__EMSCRIPTEN__) |
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34 /* |
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35 Avoid this error: |
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36 .../boost/math/special_functions/round.hpp:86:12: warning: implicit conversion from 'std::__2::numeric_limits<int>::type' (aka 'int') to 'float' changes value from 2147483647 to 2147483648 [-Wimplicit-int-float-conversion] |
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37 .../boost/math/special_functions/round.hpp:93:11: note: in instantiation of function template specialization 'boost::math::iround<float, boost::math::policies::policy<boost::math::policies::default_policy, boost::math::policies::default_policy, boost::math::policies::default_policy, boost::math::policies::default_policy, boost::math::policies::default_policy, boost::math::policies::default_policy, boost::math::policies::default_policy, boost::math::policies::default_policy, boost::math::policies::default_policy, boost::math::policies::default_policy, boost::math::policies::default_policy> >' requested here |
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38 .../orthanc-stone/Framework/Fonts/GlyphTextureAlphabet.cpp:92:28: note: in instantiation of function template specialization 'boost::math::iround<float>' requested here |
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39 */ |
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40 #pragma GCC diagnostic ignored "-Wimplicit-int-float-conversion" |
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41 #endif |
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42 |
577 | 43 #include <boost/math/special_functions/round.hpp> |
44 | |
45 namespace OrthancStone | |
46 { | |
47 class GlyphTextureAlphabet::GlyphSizeVisitor : public GlyphAlphabet::IGlyphVisitor | |
48 { | |
49 private: | |
50 unsigned int maxWidth_; | |
51 unsigned int maxHeight_; | |
52 | |
53 public: | |
54 GlyphSizeVisitor() : | |
55 maxWidth_(0), | |
56 maxHeight_(0) | |
57 { | |
58 } | |
59 | |
60 virtual void Visit(uint32_t unicode, | |
1571 | 61 const Glyph& glyph) ORTHANC_OVERRIDE |
577 | 62 { |
63 maxWidth_ = std::max(maxWidth_, glyph.GetWidth()); | |
64 maxHeight_ = std::max(maxHeight_, glyph.GetHeight()); | |
65 } | |
66 | |
67 unsigned int GetMaxWidth() const | |
68 { | |
69 return maxWidth_; | |
70 } | |
71 | |
72 unsigned int GetMaxHeight() const | |
73 { | |
74 return maxHeight_; | |
75 } | |
76 }; | |
77 | |
78 | |
79 class GlyphTextureAlphabet::TextureGenerator : public GlyphAlphabet::IGlyphVisitor | |
80 { | |
81 private: | |
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82 std::unique_ptr<Orthanc::ImageAccessor> texture_; |
577 | 83 |
84 unsigned int countColumns_; | |
85 unsigned int countRows_; | |
86 GlyphAlphabet& targetAlphabet_; | |
87 unsigned int glyphMaxWidth_; | |
88 unsigned int glyphMaxHeight_; | |
89 unsigned int column_; | |
90 unsigned int row_; | |
91 | |
92 public: | |
93 TextureGenerator(GlyphAlphabet& targetAlphabet, | |
94 unsigned int countGlyphs, | |
95 unsigned int glyphMaxWidth, | |
96 unsigned int glyphMaxHeight) : | |
97 targetAlphabet_(targetAlphabet), | |
98 glyphMaxWidth_(glyphMaxWidth), | |
99 glyphMaxHeight_(glyphMaxHeight), | |
100 column_(0), | |
101 row_(0) | |
102 { | |
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103 int c = boost::math::iround<float>(sqrt(static_cast<float>(countGlyphs))); |
577 | 104 |
105 if (c <= 0) | |
106 { | |
107 countColumns_ = 1; | |
108 } | |
109 else | |
110 { | |
111 countColumns_ = static_cast<unsigned int>(c); | |
112 } | |
113 | |
114 countRows_ = countGlyphs / countColumns_; | |
115 if (countGlyphs % countColumns_ != 0) | |
116 { | |
117 countRows_++; | |
118 } | |
119 | |
120 texture_.reset(new Orthanc::Image(Orthanc::PixelFormat_RGBA32, | |
121 countColumns_ * glyphMaxWidth_, | |
122 countRows_ * glyphMaxHeight_, | |
123 true /* force minimal pitch */)); | |
124 | |
125 Orthanc::ImageProcessing::Set(*texture_, 0, 0, 0, 0); | |
126 } | |
127 | |
128 | |
129 virtual void Visit(uint32_t unicode, | |
1571 | 130 const Glyph& glyph) ORTHANC_OVERRIDE |
577 | 131 { |
132 if (!glyph.HasPayload()) | |
133 { | |
134 throw Orthanc::OrthancException(Orthanc::ErrorCode_BadSequenceOfCalls); | |
135 } | |
136 | |
137 if (column_ >= countColumns_ || | |
138 row_ >= countRows_) | |
139 { | |
140 throw Orthanc::OrthancException(Orthanc::ErrorCode_InternalError); | |
141 } | |
142 | |
143 const Orthanc::ImageAccessor& source = dynamic_cast<const DynamicBitmap&>(glyph.GetPayload()).GetBitmap(); | |
144 | |
145 if (source.GetFormat() != Orthanc::PixelFormat_Grayscale8) | |
146 { | |
147 throw Orthanc::OrthancException(Orthanc::ErrorCode_InternalError); | |
148 } | |
149 | |
1571 | 150 Orthanc::ImageAccessor target; |
577 | 151 |
1571 | 152 { |
153 unsigned int x = column_ * glyphMaxWidth_; | |
154 unsigned int y = row_ * glyphMaxHeight_; | |
155 targetAlphabet_.Register(unicode, glyph, new TextureLocation(x, y)); | |
156 texture_->GetRegion(target, x, y, source.GetWidth(), source.GetHeight()); | |
157 } | |
577 | 158 |
159 //Orthanc::ImageProcessing::Copy(target, bitmap->GetBitmap()); | |
160 | |
1624 | 161 const unsigned int width = source.GetWidth(); |
162 const unsigned int height = source.GetHeight(); | |
163 | |
164 for (unsigned int y = 0; y < height; y++) | |
577 | 165 { |
166 const uint8_t* p = reinterpret_cast<const uint8_t*>(source.GetConstRow(y)); | |
167 uint8_t* q = reinterpret_cast<uint8_t*>(target.GetRow(y)); | |
168 | |
1624 | 169 for (unsigned int x = 0; x < width; x++) |
577 | 170 { |
171 // Premultiplied alpha | |
172 q[0] = 0; | |
173 q[1] = 0; | |
174 q[2] = 0; | |
175 q[3] = *p; | |
176 | |
177 p++; | |
178 q += 4; | |
179 } | |
180 } | |
181 | |
182 column_++; | |
183 if (column_ == countColumns_) | |
184 { | |
185 column_ = 0; | |
186 row_++; | |
187 } | |
188 } | |
189 | |
190 | |
191 Orthanc::ImageAccessor* ReleaseTexture() | |
192 { | |
193 return texture_.release(); | |
194 } | |
195 }; | |
196 | |
197 | |
198 class GlyphTextureAlphabet::RenderTextVisitor : public GlyphAlphabet::ITextVisitor | |
199 { | |
200 private: | |
201 Orthanc::ImageAccessor& target_; | |
202 const Orthanc::ImageAccessor& texture_; | |
203 int offsetX_; | |
204 int offsetY_; | |
205 | |
206 public: | |
207 RenderTextVisitor(Orthanc::ImageAccessor& target, | |
208 const GlyphTextureAlphabet& that, | |
209 int offsetX, | |
210 int offsetY) : | |
211 target_(target), | |
212 texture_(that.GetTexture()), | |
213 offsetX_(offsetX), | |
214 offsetY_(offsetY) | |
215 { | |
216 } | |
217 | |
218 virtual void Visit(uint32_t unicode, | |
219 int x, | |
220 int y, | |
221 unsigned int width, | |
222 unsigned int height, | |
1571 | 223 const Orthanc::IDynamicObject* payload) ORTHANC_OVERRIDE |
577 | 224 { |
225 int left = x + offsetX_; | |
226 int top = y + offsetY_; | |
227 | |
228 assert(payload != NULL); | |
229 const TextureLocation& location = *dynamic_cast<const TextureLocation*>(payload); | |
230 | |
231 assert(left >= 0 && | |
232 top >= 0 && | |
233 static_cast<unsigned int>(left) + width <= target_.GetWidth() && | |
234 static_cast<unsigned int>(top) + height <= target_.GetHeight()); | |
235 | |
236 { | |
237 Orthanc::ImageAccessor to; | |
238 target_.GetRegion(to, left, top, width, height); | |
239 | |
240 Orthanc::ImageAccessor from; | |
241 texture_.GetRegion(from, location.GetX(), location.GetY(), width, height); | |
242 | |
243 Orthanc::ImageProcessing::Copy(to, from); | |
244 } | |
245 } | |
246 }; | |
247 | |
248 | |
249 GlyphTextureAlphabet::GlyphTextureAlphabet(const GlyphBitmapAlphabet& sourceAlphabet) : | |
250 textureWidth_(0), | |
251 textureHeight_(0) | |
252 { | |
253 GlyphSizeVisitor size; | |
254 sourceAlphabet.GetAlphabet().Apply(size); | |
255 | |
256 TextureGenerator generator(alphabet_, | |
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257 static_cast<unsigned int>(sourceAlphabet.GetAlphabet().GetSize()), |
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258 size.GetMaxWidth(), |
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259 size.GetMaxHeight()); |
577 | 260 sourceAlphabet.GetAlphabet().Apply(generator); |
261 | |
262 texture_.reset(generator.ReleaseTexture()); | |
263 textureWidth_ = texture_->GetWidth(); | |
264 textureHeight_ = texture_->GetHeight(); | |
265 } | |
266 | |
267 | |
268 const Orthanc::ImageAccessor& GlyphTextureAlphabet::GetTexture() const | |
269 { | |
270 if (texture_.get() == NULL) | |
271 { | |
272 throw Orthanc::OrthancException(Orthanc::ErrorCode_BadSequenceOfCalls); | |
273 } | |
274 else | |
275 { | |
276 return *texture_; | |
277 } | |
278 } | |
279 | |
280 | |
281 Orthanc::ImageAccessor* GlyphTextureAlphabet::ReleaseTexture() | |
282 { | |
283 if (texture_.get() == NULL) | |
284 { | |
285 throw Orthanc::OrthancException(Orthanc::ErrorCode_BadSequenceOfCalls); | |
286 } | |
287 else | |
288 { | |
289 return texture_.release(); | |
290 } | |
291 } | |
292 | |
293 | |
294 Orthanc::ImageAccessor* GlyphTextureAlphabet::RenderText(const std::string& utf8) | |
295 { | |
296 TextBoundingBox box(alphabet_, utf8); | |
297 | |
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298 std::unique_ptr<Orthanc::ImageAccessor> bitmap( |
577 | 299 new Orthanc::Image(Orthanc::PixelFormat_RGBA32, |
300 box.GetWidth(), box.GetHeight(), | |
301 true /* force minimal pitch */)); | |
302 | |
303 Orthanc::ImageProcessing::Set(*bitmap, 0, 0, 0, 0); | |
304 | |
305 RenderTextVisitor visitor(*bitmap, *this, -box.GetLeft(), -box.GetTop()); | |
306 alphabet_.Apply(visitor, utf8); | |
307 | |
308 return bitmap.release(); | |
309 } | |
310 } |