Mercurial > hg > orthanc-stone
annotate OrthancStone/Sources/Fonts/GlyphTextureAlphabet.cpp @ 1870:3889ae96d2e9
added copyright UCLouvain
| author | Sebastien Jodogne <s.jodogne@gmail.com> |
|---|---|
| date | Tue, 11 Jan 2022 11:04:09 +0100 |
| parents | 9ac2a65d4172 |
| children | 7053b8a0aaec |
| rev | line source |
|---|---|
| 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) 2017-2021 Osimis S.A., Belgium |
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6 * Copyright (C) 2021-2021 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 } |