Mercurial > hg > orthanc-stone
annotate Framework/Fonts/GlyphTextureAlphabet.cpp @ 702:c0a5eb9a4290 refactor-viewport-controller
Merge from default
| author | Benjamin Golinvaux <bgo@osimis.io> |
|---|---|
| date | Sun, 19 May 2019 16:29:50 +0200 |
| parents | 9a474e90e832 |
| children | 769249e1f3b4 |
| 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 | |
| 5 * Copyright (C) 2017-2019 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 | |
| 22 #include "GlyphTextureAlphabet.h" | |
| 23 | |
| 24 #include "TextBoundingBox.h" | |
| 25 #include "../Toolbox/DynamicBitmap.h" | |
| 26 | |
| 27 #include <Core/Images/Image.h> | |
| 28 #include <Core/Images/ImageProcessing.h> | |
| 29 #include <Core/OrthancException.h> | |
| 30 | |
| 31 #include <boost/math/special_functions/round.hpp> | |
| 32 | |
| 33 | |
| 34 namespace OrthancStone | |
| 35 { | |
| 36 class GlyphTextureAlphabet::GlyphSizeVisitor : public GlyphAlphabet::IGlyphVisitor | |
| 37 { | |
| 38 private: | |
| 39 unsigned int maxWidth_; | |
| 40 unsigned int maxHeight_; | |
| 41 | |
| 42 public: | |
| 43 GlyphSizeVisitor() : | |
| 44 maxWidth_(0), | |
| 45 maxHeight_(0) | |
| 46 { | |
| 47 } | |
| 48 | |
| 49 virtual void Visit(uint32_t unicode, | |
| 50 const Glyph& glyph) | |
| 51 { | |
| 52 maxWidth_ = std::max(maxWidth_, glyph.GetWidth()); | |
| 53 maxHeight_ = std::max(maxHeight_, glyph.GetHeight()); | |
| 54 } | |
| 55 | |
| 56 unsigned int GetMaxWidth() const | |
| 57 { | |
| 58 return maxWidth_; | |
| 59 } | |
| 60 | |
| 61 unsigned int GetMaxHeight() const | |
| 62 { | |
| 63 return maxHeight_; | |
| 64 } | |
| 65 }; | |
| 66 | |
| 67 | |
| 68 class GlyphTextureAlphabet::TextureGenerator : public GlyphAlphabet::IGlyphVisitor | |
| 69 { | |
| 70 private: | |
| 71 std::auto_ptr<Orthanc::ImageAccessor> texture_; | |
| 72 | |
| 73 unsigned int countColumns_; | |
| 74 unsigned int countRows_; | |
| 75 GlyphAlphabet& targetAlphabet_; | |
| 76 unsigned int glyphMaxWidth_; | |
| 77 unsigned int glyphMaxHeight_; | |
| 78 unsigned int column_; | |
| 79 unsigned int row_; | |
| 80 | |
| 81 public: | |
| 82 TextureGenerator(GlyphAlphabet& targetAlphabet, | |
| 83 unsigned int countGlyphs, | |
| 84 unsigned int glyphMaxWidth, | |
| 85 unsigned int glyphMaxHeight) : | |
| 86 targetAlphabet_(targetAlphabet), | |
| 87 glyphMaxWidth_(glyphMaxWidth), | |
| 88 glyphMaxHeight_(glyphMaxHeight), | |
| 89 column_(0), | |
| 90 row_(0) | |
| 91 { | |
|
693
9a474e90e832
Fixed a bunch of truncation warnings in various parts of the library
Benjamin Golinvaux <bgo@osimis.io>
parents:
577
diff
changeset
|
92 int c = boost::math::iround<float>(sqrt(static_cast<float>(countGlyphs))); |
| 577 | 93 |
| 94 if (c <= 0) | |
| 95 { | |
| 96 countColumns_ = 1; | |
| 97 } | |
| 98 else | |
| 99 { | |
| 100 countColumns_ = static_cast<unsigned int>(c); | |
| 101 } | |
| 102 | |
| 103 countRows_ = countGlyphs / countColumns_; | |
| 104 if (countGlyphs % countColumns_ != 0) | |
| 105 { | |
| 106 countRows_++; | |
| 107 } | |
| 108 | |
| 109 texture_.reset(new Orthanc::Image(Orthanc::PixelFormat_RGBA32, | |
| 110 countColumns_ * glyphMaxWidth_, | |
| 111 countRows_ * glyphMaxHeight_, | |
| 112 true /* force minimal pitch */)); | |
| 113 | |
| 114 Orthanc::ImageProcessing::Set(*texture_, 0, 0, 0, 0); | |
| 115 } | |
| 116 | |
| 117 | |
| 118 virtual void Visit(uint32_t unicode, | |
| 119 const Glyph& glyph) | |
| 120 { | |
| 121 if (!glyph.HasPayload()) | |
| 122 { | |
| 123 throw Orthanc::OrthancException(Orthanc::ErrorCode_BadSequenceOfCalls); | |
| 124 } | |
| 125 | |
| 126 if (column_ >= countColumns_ || | |
| 127 row_ >= countRows_) | |
| 128 { | |
| 129 throw Orthanc::OrthancException(Orthanc::ErrorCode_InternalError); | |
| 130 } | |
| 131 | |
| 132 unsigned int x = column_ * glyphMaxWidth_; | |
| 133 unsigned int y = row_ * glyphMaxHeight_; | |
| 134 | |
| 135 const Orthanc::ImageAccessor& source = dynamic_cast<const DynamicBitmap&>(glyph.GetPayload()).GetBitmap(); | |
| 136 | |
| 137 if (source.GetFormat() != Orthanc::PixelFormat_Grayscale8) | |
| 138 { | |
| 139 throw Orthanc::OrthancException(Orthanc::ErrorCode_InternalError); | |
| 140 } | |
| 141 | |
| 142 targetAlphabet_.Register(unicode, glyph, new TextureLocation(x, y)); | |
| 143 | |
| 144 Orthanc::ImageAccessor target; | |
| 145 texture_->GetRegion(target, x, y, source.GetWidth(), source.GetHeight()); | |
| 146 | |
| 147 //Orthanc::ImageProcessing::Copy(target, bitmap->GetBitmap()); | |
| 148 | |
| 149 for (unsigned int y = 0; y < source.GetHeight(); y++) | |
| 150 { | |
| 151 const uint8_t* p = reinterpret_cast<const uint8_t*>(source.GetConstRow(y)); | |
| 152 uint8_t* q = reinterpret_cast<uint8_t*>(target.GetRow(y)); | |
| 153 | |
| 154 for (unsigned int x = 0; x < source.GetWidth(); x++) | |
| 155 { | |
| 156 // Premultiplied alpha | |
| 157 q[0] = 0; | |
| 158 q[1] = 0; | |
| 159 q[2] = 0; | |
| 160 q[3] = *p; | |
| 161 | |
| 162 p++; | |
| 163 q += 4; | |
| 164 } | |
| 165 } | |
| 166 | |
| 167 column_++; | |
| 168 if (column_ == countColumns_) | |
| 169 { | |
| 170 column_ = 0; | |
| 171 row_++; | |
| 172 } | |
| 173 } | |
| 174 | |
| 175 | |
| 176 Orthanc::ImageAccessor* ReleaseTexture() | |
| 177 { | |
| 178 return texture_.release(); | |
| 179 } | |
| 180 }; | |
| 181 | |
| 182 | |
| 183 class GlyphTextureAlphabet::RenderTextVisitor : public GlyphAlphabet::ITextVisitor | |
| 184 { | |
| 185 private: | |
| 186 Orthanc::ImageAccessor& target_; | |
| 187 const Orthanc::ImageAccessor& texture_; | |
| 188 int offsetX_; | |
| 189 int offsetY_; | |
| 190 | |
| 191 public: | |
| 192 RenderTextVisitor(Orthanc::ImageAccessor& target, | |
| 193 const GlyphTextureAlphabet& that, | |
| 194 int offsetX, | |
| 195 int offsetY) : | |
| 196 target_(target), | |
| 197 texture_(that.GetTexture()), | |
| 198 offsetX_(offsetX), | |
| 199 offsetY_(offsetY) | |
| 200 { | |
| 201 } | |
| 202 | |
| 203 virtual void Visit(uint32_t unicode, | |
| 204 int x, | |
| 205 int y, | |
| 206 unsigned int width, | |
| 207 unsigned int height, | |
| 208 const Orthanc::IDynamicObject* payload) | |
| 209 { | |
| 210 int left = x + offsetX_; | |
| 211 int top = y + offsetY_; | |
| 212 | |
| 213 assert(payload != NULL); | |
| 214 const TextureLocation& location = *dynamic_cast<const TextureLocation*>(payload); | |
| 215 | |
| 216 assert(left >= 0 && | |
| 217 top >= 0 && | |
| 218 static_cast<unsigned int>(left) + width <= target_.GetWidth() && | |
| 219 static_cast<unsigned int>(top) + height <= target_.GetHeight()); | |
| 220 | |
| 221 { | |
| 222 Orthanc::ImageAccessor to; | |
| 223 target_.GetRegion(to, left, top, width, height); | |
| 224 | |
| 225 Orthanc::ImageAccessor from; | |
| 226 texture_.GetRegion(from, location.GetX(), location.GetY(), width, height); | |
| 227 | |
| 228 Orthanc::ImageProcessing::Copy(to, from); | |
| 229 } | |
| 230 } | |
| 231 }; | |
| 232 | |
| 233 | |
| 234 GlyphTextureAlphabet::GlyphTextureAlphabet(const GlyphBitmapAlphabet& sourceAlphabet) : | |
| 235 textureWidth_(0), | |
| 236 textureHeight_(0) | |
| 237 { | |
| 238 GlyphSizeVisitor size; | |
| 239 sourceAlphabet.GetAlphabet().Apply(size); | |
| 240 | |
| 241 TextureGenerator generator(alphabet_, | |
|
693
9a474e90e832
Fixed a bunch of truncation warnings in various parts of the library
Benjamin Golinvaux <bgo@osimis.io>
parents:
577
diff
changeset
|
242 static_cast<unsigned int>(sourceAlphabet.GetAlphabet().GetSize()), |
|
9a474e90e832
Fixed a bunch of truncation warnings in various parts of the library
Benjamin Golinvaux <bgo@osimis.io>
parents:
577
diff
changeset
|
243 size.GetMaxWidth(), |
|
9a474e90e832
Fixed a bunch of truncation warnings in various parts of the library
Benjamin Golinvaux <bgo@osimis.io>
parents:
577
diff
changeset
|
244 size.GetMaxHeight()); |
| 577 | 245 sourceAlphabet.GetAlphabet().Apply(generator); |
| 246 | |
| 247 texture_.reset(generator.ReleaseTexture()); | |
| 248 textureWidth_ = texture_->GetWidth(); | |
| 249 textureHeight_ = texture_->GetHeight(); | |
| 250 } | |
| 251 | |
| 252 | |
| 253 const Orthanc::ImageAccessor& GlyphTextureAlphabet::GetTexture() const | |
| 254 { | |
| 255 if (texture_.get() == NULL) | |
| 256 { | |
| 257 throw Orthanc::OrthancException(Orthanc::ErrorCode_BadSequenceOfCalls); | |
| 258 } | |
| 259 else | |
| 260 { | |
| 261 return *texture_; | |
| 262 } | |
| 263 } | |
| 264 | |
| 265 | |
| 266 Orthanc::ImageAccessor* GlyphTextureAlphabet::ReleaseTexture() | |
| 267 { | |
| 268 if (texture_.get() == NULL) | |
| 269 { | |
| 270 throw Orthanc::OrthancException(Orthanc::ErrorCode_BadSequenceOfCalls); | |
| 271 } | |
| 272 else | |
| 273 { | |
| 274 return texture_.release(); | |
| 275 } | |
| 276 } | |
| 277 | |
| 278 | |
| 279 Orthanc::ImageAccessor* GlyphTextureAlphabet::RenderText(const std::string& utf8) | |
| 280 { | |
| 281 TextBoundingBox box(alphabet_, utf8); | |
| 282 | |
| 283 std::auto_ptr<Orthanc::ImageAccessor> bitmap( | |
| 284 new Orthanc::Image(Orthanc::PixelFormat_RGBA32, | |
| 285 box.GetWidth(), box.GetHeight(), | |
| 286 true /* force minimal pitch */)); | |
| 287 | |
| 288 Orthanc::ImageProcessing::Set(*bitmap, 0, 0, 0, 0); | |
| 289 | |
| 290 RenderTextVisitor visitor(*bitmap, *this, -box.GetLeft(), -box.GetTop()); | |
| 291 alphabet_.Apply(visitor, utf8); | |
| 292 | |
| 293 return bitmap.release(); | |
| 294 } | |
| 295 } |