Mercurial > hg > orthanc-stone
annotate OrthancStone/Sources/Fonts/GlyphTextureAlphabet.cpp @ 1571:85e117739eca
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| author | Sebastien Jodogne <s.jodogne@gmail.com> |
|---|---|
| date | Mon, 21 Sep 2020 17:46:39 +0200 |
| parents | 244ad1e4e76a |
| children | 4fb8fdf03314 |
| 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) 2017-2020 Osimis S.A., Belgium |
| 577 | 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 | |
| 22 #include "GlyphTextureAlphabet.h" | |
| 23 | |
| 24 #include "TextBoundingBox.h" | |
| 25 #include "../Toolbox/DynamicBitmap.h" | |
| 26 | |
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27 #include <Images/Image.h> |
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28 #include <Images/ImageProcessing.h> |
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29 #include <OrthancException.h> |
| 577 | 30 |
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31 #if defined(__EMSCRIPTEN__) |
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32 /* |
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33 Avoid this error: |
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34 .../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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35 .../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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36 .../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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37 */ |
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38 #pragma GCC diagnostic ignored "-Wimplicit-int-float-conversion" |
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39 #endif |
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40 |
| 577 | 41 #include <boost/math/special_functions/round.hpp> |
| 42 | |
| 43 namespace OrthancStone | |
| 44 { | |
| 45 class GlyphTextureAlphabet::GlyphSizeVisitor : public GlyphAlphabet::IGlyphVisitor | |
| 46 { | |
| 47 private: | |
| 48 unsigned int maxWidth_; | |
| 49 unsigned int maxHeight_; | |
| 50 | |
| 51 public: | |
| 52 GlyphSizeVisitor() : | |
| 53 maxWidth_(0), | |
| 54 maxHeight_(0) | |
| 55 { | |
| 56 } | |
| 57 | |
| 58 virtual void Visit(uint32_t unicode, | |
| 1571 | 59 const Glyph& glyph) ORTHANC_OVERRIDE |
| 577 | 60 { |
| 61 maxWidth_ = std::max(maxWidth_, glyph.GetWidth()); | |
| 62 maxHeight_ = std::max(maxHeight_, glyph.GetHeight()); | |
| 63 } | |
| 64 | |
| 65 unsigned int GetMaxWidth() const | |
| 66 { | |
| 67 return maxWidth_; | |
| 68 } | |
| 69 | |
| 70 unsigned int GetMaxHeight() const | |
| 71 { | |
| 72 return maxHeight_; | |
| 73 } | |
| 74 }; | |
| 75 | |
| 76 | |
| 77 class GlyphTextureAlphabet::TextureGenerator : public GlyphAlphabet::IGlyphVisitor | |
| 78 { | |
| 79 private: | |
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80 std::unique_ptr<Orthanc::ImageAccessor> texture_; |
| 577 | 81 |
| 82 unsigned int countColumns_; | |
| 83 unsigned int countRows_; | |
| 84 GlyphAlphabet& targetAlphabet_; | |
| 85 unsigned int glyphMaxWidth_; | |
| 86 unsigned int glyphMaxHeight_; | |
| 87 unsigned int column_; | |
| 88 unsigned int row_; | |
| 89 | |
| 90 public: | |
| 91 TextureGenerator(GlyphAlphabet& targetAlphabet, | |
| 92 unsigned int countGlyphs, | |
| 93 unsigned int glyphMaxWidth, | |
| 94 unsigned int glyphMaxHeight) : | |
| 95 targetAlphabet_(targetAlphabet), | |
| 96 glyphMaxWidth_(glyphMaxWidth), | |
| 97 glyphMaxHeight_(glyphMaxHeight), | |
| 98 column_(0), | |
| 99 row_(0) | |
| 100 { | |
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101 int c = boost::math::iround<float>(sqrt(static_cast<float>(countGlyphs))); |
| 577 | 102 |
| 103 if (c <= 0) | |
| 104 { | |
| 105 countColumns_ = 1; | |
| 106 } | |
| 107 else | |
| 108 { | |
| 109 countColumns_ = static_cast<unsigned int>(c); | |
| 110 } | |
| 111 | |
| 112 countRows_ = countGlyphs / countColumns_; | |
| 113 if (countGlyphs % countColumns_ != 0) | |
| 114 { | |
| 115 countRows_++; | |
| 116 } | |
| 117 | |
| 118 texture_.reset(new Orthanc::Image(Orthanc::PixelFormat_RGBA32, | |
| 119 countColumns_ * glyphMaxWidth_, | |
| 120 countRows_ * glyphMaxHeight_, | |
| 121 true /* force minimal pitch */)); | |
| 122 | |
| 123 Orthanc::ImageProcessing::Set(*texture_, 0, 0, 0, 0); | |
| 124 } | |
| 125 | |
| 126 | |
| 127 virtual void Visit(uint32_t unicode, | |
| 1571 | 128 const Glyph& glyph) ORTHANC_OVERRIDE |
| 577 | 129 { |
| 130 if (!glyph.HasPayload()) | |
| 131 { | |
| 132 throw Orthanc::OrthancException(Orthanc::ErrorCode_BadSequenceOfCalls); | |
| 133 } | |
| 134 | |
| 135 if (column_ >= countColumns_ || | |
| 136 row_ >= countRows_) | |
| 137 { | |
| 138 throw Orthanc::OrthancException(Orthanc::ErrorCode_InternalError); | |
| 139 } | |
| 140 | |
| 141 const Orthanc::ImageAccessor& source = dynamic_cast<const DynamicBitmap&>(glyph.GetPayload()).GetBitmap(); | |
| 142 | |
| 143 if (source.GetFormat() != Orthanc::PixelFormat_Grayscale8) | |
| 144 { | |
| 145 throw Orthanc::OrthancException(Orthanc::ErrorCode_InternalError); | |
| 146 } | |
| 147 | |
| 1571 | 148 Orthanc::ImageAccessor target; |
| 577 | 149 |
| 1571 | 150 { |
| 151 unsigned int x = column_ * glyphMaxWidth_; | |
| 152 unsigned int y = row_ * glyphMaxHeight_; | |
| 153 targetAlphabet_.Register(unicode, glyph, new TextureLocation(x, y)); | |
| 154 texture_->GetRegion(target, x, y, source.GetWidth(), source.GetHeight()); | |
| 155 } | |
| 577 | 156 |
| 157 //Orthanc::ImageProcessing::Copy(target, bitmap->GetBitmap()); | |
| 158 | |
| 159 for (unsigned int y = 0; y < source.GetHeight(); y++) | |
| 160 { | |
| 161 const uint8_t* p = reinterpret_cast<const uint8_t*>(source.GetConstRow(y)); | |
| 162 uint8_t* q = reinterpret_cast<uint8_t*>(target.GetRow(y)); | |
| 163 | |
| 164 for (unsigned int x = 0; x < source.GetWidth(); x++) | |
| 165 { | |
| 166 // Premultiplied alpha | |
| 167 q[0] = 0; | |
| 168 q[1] = 0; | |
| 169 q[2] = 0; | |
| 170 q[3] = *p; | |
| 171 | |
| 172 p++; | |
| 173 q += 4; | |
| 174 } | |
| 175 } | |
| 176 | |
| 177 column_++; | |
| 178 if (column_ == countColumns_) | |
| 179 { | |
| 180 column_ = 0; | |
| 181 row_++; | |
| 182 } | |
| 183 } | |
| 184 | |
| 185 | |
| 186 Orthanc::ImageAccessor* ReleaseTexture() | |
| 187 { | |
| 188 return texture_.release(); | |
| 189 } | |
| 190 }; | |
| 191 | |
| 192 | |
| 193 class GlyphTextureAlphabet::RenderTextVisitor : public GlyphAlphabet::ITextVisitor | |
| 194 { | |
| 195 private: | |
| 196 Orthanc::ImageAccessor& target_; | |
| 197 const Orthanc::ImageAccessor& texture_; | |
| 198 int offsetX_; | |
| 199 int offsetY_; | |
| 200 | |
| 201 public: | |
| 202 RenderTextVisitor(Orthanc::ImageAccessor& target, | |
| 203 const GlyphTextureAlphabet& that, | |
| 204 int offsetX, | |
| 205 int offsetY) : | |
| 206 target_(target), | |
| 207 texture_(that.GetTexture()), | |
| 208 offsetX_(offsetX), | |
| 209 offsetY_(offsetY) | |
| 210 { | |
| 211 } | |
| 212 | |
| 213 virtual void Visit(uint32_t unicode, | |
| 214 int x, | |
| 215 int y, | |
| 216 unsigned int width, | |
| 217 unsigned int height, | |
| 1571 | 218 const Orthanc::IDynamicObject* payload) ORTHANC_OVERRIDE |
| 577 | 219 { |
| 220 int left = x + offsetX_; | |
| 221 int top = y + offsetY_; | |
| 222 | |
| 223 assert(payload != NULL); | |
| 224 const TextureLocation& location = *dynamic_cast<const TextureLocation*>(payload); | |
| 225 | |
| 226 assert(left >= 0 && | |
| 227 top >= 0 && | |
| 228 static_cast<unsigned int>(left) + width <= target_.GetWidth() && | |
| 229 static_cast<unsigned int>(top) + height <= target_.GetHeight()); | |
| 230 | |
| 231 { | |
| 232 Orthanc::ImageAccessor to; | |
| 233 target_.GetRegion(to, left, top, width, height); | |
| 234 | |
| 235 Orthanc::ImageAccessor from; | |
| 236 texture_.GetRegion(from, location.GetX(), location.GetY(), width, height); | |
| 237 | |
| 238 Orthanc::ImageProcessing::Copy(to, from); | |
| 239 } | |
| 240 } | |
| 241 }; | |
| 242 | |
| 243 | |
| 244 GlyphTextureAlphabet::GlyphTextureAlphabet(const GlyphBitmapAlphabet& sourceAlphabet) : | |
| 245 textureWidth_(0), | |
| 246 textureHeight_(0) | |
| 247 { | |
| 248 GlyphSizeVisitor size; | |
| 249 sourceAlphabet.GetAlphabet().Apply(size); | |
| 250 | |
| 251 TextureGenerator generator(alphabet_, | |
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252 static_cast<unsigned int>(sourceAlphabet.GetAlphabet().GetSize()), |
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253 size.GetMaxWidth(), |
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254 size.GetMaxHeight()); |
| 577 | 255 sourceAlphabet.GetAlphabet().Apply(generator); |
| 256 | |
| 257 texture_.reset(generator.ReleaseTexture()); | |
| 258 textureWidth_ = texture_->GetWidth(); | |
| 259 textureHeight_ = texture_->GetHeight(); | |
| 260 } | |
| 261 | |
| 262 | |
| 263 const Orthanc::ImageAccessor& GlyphTextureAlphabet::GetTexture() const | |
| 264 { | |
| 265 if (texture_.get() == NULL) | |
| 266 { | |
| 267 throw Orthanc::OrthancException(Orthanc::ErrorCode_BadSequenceOfCalls); | |
| 268 } | |
| 269 else | |
| 270 { | |
| 271 return *texture_; | |
| 272 } | |
| 273 } | |
| 274 | |
| 275 | |
| 276 Orthanc::ImageAccessor* GlyphTextureAlphabet::ReleaseTexture() | |
| 277 { | |
| 278 if (texture_.get() == NULL) | |
| 279 { | |
| 280 throw Orthanc::OrthancException(Orthanc::ErrorCode_BadSequenceOfCalls); | |
| 281 } | |
| 282 else | |
| 283 { | |
| 284 return texture_.release(); | |
| 285 } | |
| 286 } | |
| 287 | |
| 288 | |
| 289 Orthanc::ImageAccessor* GlyphTextureAlphabet::RenderText(const std::string& utf8) | |
| 290 { | |
| 291 TextBoundingBox box(alphabet_, utf8); | |
| 292 | |
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293 std::unique_ptr<Orthanc::ImageAccessor> bitmap( |
| 577 | 294 new Orthanc::Image(Orthanc::PixelFormat_RGBA32, |
| 295 box.GetWidth(), box.GetHeight(), | |
| 296 true /* force minimal pitch */)); | |
| 297 | |
| 298 Orthanc::ImageProcessing::Set(*bitmap, 0, 0, 0, 0); | |
| 299 | |
| 300 RenderTextVisitor visitor(*bitmap, *this, -box.GetLeft(), -box.GetTop()); | |
| 301 alphabet_.Apply(visitor, utf8); | |
| 302 | |
| 303 return bitmap.release(); | |
| 304 } | |
| 305 } |