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| 1 /* |
| 2 * Copyright 2014 Google Inc. |
| 3 * |
| 4 * Use of this source code is governed by a BSD-style license that can be |
| 5 * found in the LICENSE file. |
| 6 */ |
| 7 |
| 8 #include "SkDWriteFontFileStream.h" |
| 9 #include "SkFontDescriptor.h" |
| 10 #include "SkFontStream.h" |
| 11 #include "SkOTTable_head.h" |
| 12 #include "SkOTTable_hhea.h" |
| 13 #include "SkOTTable_OS_2.h" |
| 14 #include "SkOTTable_post.h" |
| 15 #include "SkScalerContext.h" |
| 16 #include "SkScalerContext_win_dw.h" |
| 17 #include "SkTypeface_win_dw.h" |
| 18 #include "SkTypes.h" |
| 19 #include "SkUtils.h" |
| 20 |
| 21 void DWriteFontTypeface::onGetFontDescriptor(SkFontDescriptor* desc, |
| 22 bool* isLocalStream) const { |
| 23 // Get the family name. |
| 24 SkTScopedComPtr<IDWriteLocalizedStrings> dwFamilyNames; |
| 25 HRV(fDWriteFontFamily->GetFamilyNames(&dwFamilyNames)); |
| 26 |
| 27 UINT32 dwFamilyNamesLength; |
| 28 HRV(dwFamilyNames->GetStringLength(0, &dwFamilyNamesLength)); |
| 29 |
| 30 SkSMallocWCHAR dwFamilyNameChar(dwFamilyNamesLength+1); |
| 31 HRV(dwFamilyNames->GetString(0, dwFamilyNameChar.get(), dwFamilyNamesLength+
1)); |
| 32 |
| 33 SkString utf8FamilyName; |
| 34 HRV(sk_wchar_to_skstring(dwFamilyNameChar.get(), &utf8FamilyName)); |
| 35 |
| 36 desc->setFamilyName(utf8FamilyName.c_str()); |
| 37 *isLocalStream = SkToBool(fDWriteFontFileLoader.get()); |
| 38 } |
| 39 |
| 40 static SkUnichar next_utf8(const void** chars) { |
| 41 return SkUTF8_NextUnichar((const char**)chars); |
| 42 } |
| 43 |
| 44 static SkUnichar next_utf16(const void** chars) { |
| 45 return SkUTF16_NextUnichar((const uint16_t**)chars); |
| 46 } |
| 47 |
| 48 static SkUnichar next_utf32(const void** chars) { |
| 49 const SkUnichar** uniChars = (const SkUnichar**)chars; |
| 50 SkUnichar uni = **uniChars; |
| 51 *uniChars += 1; |
| 52 return uni; |
| 53 } |
| 54 |
| 55 typedef SkUnichar (*EncodingProc)(const void**); |
| 56 |
| 57 static EncodingProc find_encoding_proc(SkTypeface::Encoding enc) { |
| 58 static const EncodingProc gProcs[] = { |
| 59 next_utf8, next_utf16, next_utf32 |
| 60 }; |
| 61 SkASSERT((size_t)enc < SK_ARRAY_COUNT(gProcs)); |
| 62 return gProcs[enc]; |
| 63 } |
| 64 |
| 65 int DWriteFontTypeface::onCharsToGlyphs(const void* chars, Encoding encoding, |
| 66 uint16_t glyphs[], int glyphCount) const |
| 67 { |
| 68 if (NULL == glyphs) { |
| 69 EncodingProc next_ucs4_proc = find_encoding_proc(encoding); |
| 70 for (int i = 0; i < glyphCount; ++i) { |
| 71 const SkUnichar c = next_ucs4_proc(&chars); |
| 72 BOOL exists; |
| 73 fDWriteFont->HasCharacter(c, &exists); |
| 74 if (!exists) { |
| 75 return i; |
| 76 } |
| 77 } |
| 78 return glyphCount; |
| 79 } |
| 80 |
| 81 switch (encoding) { |
| 82 case SkTypeface::kUTF8_Encoding: |
| 83 case SkTypeface::kUTF16_Encoding: { |
| 84 static const int scratchCount = 256; |
| 85 UINT32 scratch[scratchCount]; |
| 86 EncodingProc next_ucs4_proc = find_encoding_proc(encoding); |
| 87 for (int baseGlyph = 0; baseGlyph < glyphCount; baseGlyph += scratchCoun
t) { |
| 88 int glyphsLeft = glyphCount - baseGlyph; |
| 89 int limit = SkTMin(glyphsLeft, scratchCount); |
| 90 for (int i = 0; i < limit; ++i) { |
| 91 scratch[i] = next_ucs4_proc(&chars); |
| 92 } |
| 93 fDWriteFontFace->GetGlyphIndices(scratch, limit, &glyphs[baseGlyph])
; |
| 94 } |
| 95 break; |
| 96 } |
| 97 case SkTypeface::kUTF32_Encoding: { |
| 98 const UINT32* utf32 = reinterpret_cast<const UINT32*>(chars); |
| 99 fDWriteFontFace->GetGlyphIndices(utf32, glyphCount, glyphs); |
| 100 break; |
| 101 } |
| 102 default: |
| 103 SK_CRASH(); |
| 104 } |
| 105 |
| 106 for (int i = 0; i < glyphCount; ++i) { |
| 107 if (0 == glyphs[i]) { |
| 108 return i; |
| 109 } |
| 110 } |
| 111 return glyphCount; |
| 112 } |
| 113 |
| 114 int DWriteFontTypeface::onCountGlyphs() const { |
| 115 return fDWriteFontFace->GetGlyphCount(); |
| 116 } |
| 117 |
| 118 int DWriteFontTypeface::onGetUPEM() const { |
| 119 DWRITE_FONT_METRICS metrics; |
| 120 fDWriteFontFace->GetMetrics(&metrics); |
| 121 return metrics.designUnitsPerEm; |
| 122 } |
| 123 |
| 124 class LocalizedStrings_IDWriteLocalizedStrings : public SkTypeface::LocalizedStr
ings { |
| 125 public: |
| 126 /** Takes ownership of the IDWriteLocalizedStrings. */ |
| 127 explicit LocalizedStrings_IDWriteLocalizedStrings(IDWriteLocalizedStrings* s
trings) |
| 128 : fIndex(0), fStrings(strings) |
| 129 { } |
| 130 |
| 131 virtual bool next(SkTypeface::LocalizedString* localizedString) SK_OVERRIDE
{ |
| 132 if (fIndex >= fStrings->GetCount()) { |
| 133 return false; |
| 134 } |
| 135 |
| 136 // String |
| 137 UINT32 stringLength; |
| 138 HRBM(fStrings->GetStringLength(fIndex, &stringLength), "Could not get st
ring length."); |
| 139 stringLength += 1; |
| 140 |
| 141 SkSMallocWCHAR wString(stringLength); |
| 142 HRBM(fStrings->GetString(fIndex, wString.get(), stringLength), "Could no
t get string."); |
| 143 |
| 144 HRB(sk_wchar_to_skstring(wString.get(), &localizedString->fString)); |
| 145 |
| 146 // Locale |
| 147 UINT32 localeLength; |
| 148 HRBM(fStrings->GetLocaleNameLength(fIndex, &localeLength), "Could not ge
t locale length."); |
| 149 localeLength += 1; |
| 150 |
| 151 SkSMallocWCHAR wLocale(localeLength); |
| 152 HRBM(fStrings->GetLocaleName(fIndex, wLocale.get(), localeLength), "Coul
d not get locale."); |
| 153 |
| 154 HRB(sk_wchar_to_skstring(wLocale.get(), &localizedString->fLanguage)); |
| 155 |
| 156 ++fIndex; |
| 157 return true; |
| 158 } |
| 159 |
| 160 private: |
| 161 UINT32 fIndex; |
| 162 SkTScopedComPtr<IDWriteLocalizedStrings> fStrings; |
| 163 }; |
| 164 |
| 165 SkTypeface::LocalizedStrings* DWriteFontTypeface::onCreateFamilyNameIterator() c
onst { |
| 166 SkTScopedComPtr<IDWriteLocalizedStrings> familyNames; |
| 167 HRNM(fDWriteFontFamily->GetFamilyNames(&familyNames), "Could not obtain fami
ly names."); |
| 168 |
| 169 return new LocalizedStrings_IDWriteLocalizedStrings(familyNames.release()); |
| 170 } |
| 171 |
| 172 int DWriteFontTypeface::onGetTableTags(SkFontTableTag tags[]) const { |
| 173 DWRITE_FONT_FACE_TYPE type = fDWriteFontFace->GetType(); |
| 174 if (type != DWRITE_FONT_FACE_TYPE_CFF && |
| 175 type != DWRITE_FONT_FACE_TYPE_TRUETYPE && |
| 176 type != DWRITE_FONT_FACE_TYPE_TRUETYPE_COLLECTION) |
| 177 { |
| 178 return 0; |
| 179 } |
| 180 |
| 181 int ttcIndex; |
| 182 SkAutoTUnref<SkStream> stream(this->openStream(&ttcIndex)); |
| 183 return stream.get() ? SkFontStream::GetTableTags(stream, ttcIndex, tags) : 0
; |
| 184 } |
| 185 |
| 186 size_t DWriteFontTypeface::onGetTableData(SkFontTableTag tag, size_t offset, |
| 187 size_t length, void* data) const |
| 188 { |
| 189 AutoDWriteTable table(fDWriteFontFace.get(), SkEndian_SwapBE32(tag)); |
| 190 if (!table.fExists) { |
| 191 return 0; |
| 192 } |
| 193 |
| 194 if (offset > table.fSize) { |
| 195 return 0; |
| 196 } |
| 197 size_t size = SkTMin(length, table.fSize - offset); |
| 198 if (NULL != data) { |
| 199 memcpy(data, table.fData + offset, size); |
| 200 } |
| 201 |
| 202 return size; |
| 203 } |
| 204 |
| 205 SkStream* DWriteFontTypeface::onOpenStream(int* ttcIndex) const { |
| 206 *ttcIndex = fDWriteFontFace->GetIndex(); |
| 207 |
| 208 UINT32 numFiles; |
| 209 HRNM(fDWriteFontFace->GetFiles(&numFiles, NULL), |
| 210 "Could not get number of font files."); |
| 211 if (numFiles != 1) { |
| 212 return NULL; |
| 213 } |
| 214 |
| 215 SkTScopedComPtr<IDWriteFontFile> fontFile; |
| 216 HRNM(fDWriteFontFace->GetFiles(&numFiles, &fontFile), "Could not get font fi
les."); |
| 217 |
| 218 const void* fontFileKey; |
| 219 UINT32 fontFileKeySize; |
| 220 HRNM(fontFile->GetReferenceKey(&fontFileKey, &fontFileKeySize), |
| 221 "Could not get font file reference key."); |
| 222 |
| 223 SkTScopedComPtr<IDWriteFontFileLoader> fontFileLoader; |
| 224 HRNM(fontFile->GetLoader(&fontFileLoader), "Could not get font file loader."
); |
| 225 |
| 226 SkTScopedComPtr<IDWriteFontFileStream> fontFileStream; |
| 227 HRNM(fontFileLoader->CreateStreamFromKey(fontFileKey, fontFileKeySize, |
| 228 &fontFileStream), |
| 229 "Could not create font file stream."); |
| 230 |
| 231 return SkNEW_ARGS(SkDWriteFontFileStream, (fontFileStream.get())); |
| 232 } |
| 233 |
| 234 SkScalerContext* DWriteFontTypeface::onCreateScalerContext(const SkDescriptor* d
esc) const { |
| 235 return SkNEW_ARGS(SkScalerContext_DW, (const_cast<DWriteFontTypeface*>(this)
, desc)); |
| 236 } |
| 237 |
| 238 void DWriteFontTypeface::onFilterRec(SkScalerContext::Rec* rec) const { |
| 239 if (rec->fFlags & SkScalerContext::kLCD_BGROrder_Flag || |
| 240 rec->fFlags & SkScalerContext::kLCD_Vertical_Flag) |
| 241 { |
| 242 rec->fMaskFormat = SkMask::kA8_Format; |
| 243 } |
| 244 |
| 245 unsigned flagsWeDontSupport = SkScalerContext::kDevKernText_Flag | |
| 246 SkScalerContext::kForceAutohinting_Flag | |
| 247 SkScalerContext::kEmbolden_Flag | |
| 248 SkScalerContext::kLCD_BGROrder_Flag | |
| 249 SkScalerContext::kLCD_Vertical_Flag; |
| 250 rec->fFlags &= ~flagsWeDontSupport; |
| 251 |
| 252 SkPaint::Hinting h = rec->getHinting(); |
| 253 // DirectWrite does not provide for hinting hints. |
| 254 h = SkPaint::kSlight_Hinting; |
| 255 rec->setHinting(h); |
| 256 |
| 257 #if SK_FONT_HOST_USE_SYSTEM_SETTINGS |
| 258 IDWriteFactory* factory = get_dwrite_factory(); |
| 259 if (factory != NULL) { |
| 260 SkTScopedComPtr<IDWriteRenderingParams> defaultRenderingParams; |
| 261 if (SUCCEEDED(factory->CreateRenderingParams(&defaultRenderingParams)))
{ |
| 262 float gamma = defaultRenderingParams->GetGamma(); |
| 263 rec->setDeviceGamma(gamma); |
| 264 rec->setPaintGamma(gamma); |
| 265 |
| 266 rec->setContrast(defaultRenderingParams->GetEnhancedContrast()); |
| 267 } |
| 268 } |
| 269 #endif |
| 270 } |
| 271 |
| 272 /////////////////////////////////////////////////////////////////////////////// |
| 273 //PDF Support |
| 274 |
| 275 using namespace skia_advanced_typeface_metrics_utils; |
| 276 |
| 277 // Construct Glyph to Unicode table. |
| 278 // Unicode code points that require conjugate pairs in utf16 are not |
| 279 // supported. |
| 280 // TODO(arthurhsu): Add support for conjugate pairs. It looks like that may |
| 281 // require parsing the TTF cmap table (platform 4, encoding 12) directly instead |
| 282 // of calling GetFontUnicodeRange(). |
| 283 // TODO(bungeman): This never does what anyone wants. |
| 284 // What is really wanted is the text to glyphs mapping |
| 285 static void populate_glyph_to_unicode(IDWriteFontFace* fontFace, |
| 286 const unsigned glyphCount, |
| 287 SkTDArray<SkUnichar>* glyphToUnicode) { |
| 288 HRESULT hr = S_OK; |
| 289 |
| 290 //Do this like free type instead |
| 291 UINT32 count = 0; |
| 292 for (UINT32 c = 0; c < 0x10FFFF; ++c) { |
| 293 UINT16 glyph; |
| 294 hr = fontFace->GetGlyphIndices(&c, 1, &glyph); |
| 295 if (glyph > 0) { |
| 296 ++count; |
| 297 } |
| 298 } |
| 299 |
| 300 SkAutoTArray<UINT32> chars(count); |
| 301 count = 0; |
| 302 for (UINT32 c = 0; c < 0x10FFFF; ++c) { |
| 303 UINT16 glyph; |
| 304 hr = fontFace->GetGlyphIndices(&c, 1, &glyph); |
| 305 if (glyph > 0) { |
| 306 chars[count] = c; |
| 307 ++count; |
| 308 } |
| 309 } |
| 310 |
| 311 SkAutoTArray<UINT16> glyph(count); |
| 312 fontFace->GetGlyphIndices(chars.get(), count, glyph.get()); |
| 313 |
| 314 USHORT maxGlyph = 0; |
| 315 for (USHORT j = 0; j < count; ++j) { |
| 316 if (glyph[j] > maxGlyph) maxGlyph = glyph[j]; |
| 317 } |
| 318 |
| 319 glyphToUnicode->setCount(maxGlyph+1); |
| 320 for (USHORT j = 0; j < maxGlyph+1u; ++j) { |
| 321 (*glyphToUnicode)[j] = 0; |
| 322 } |
| 323 |
| 324 //'invert' |
| 325 for (USHORT j = 0; j < count; ++j) { |
| 326 if (glyph[j] < glyphCount && (*glyphToUnicode)[glyph[j]] == 0) { |
| 327 (*glyphToUnicode)[glyph[j]] = chars[j]; |
| 328 } |
| 329 } |
| 330 } |
| 331 |
| 332 static bool getWidthAdvance(IDWriteFontFace* fontFace, int gId, int16_t* advance
) { |
| 333 SkASSERT(advance); |
| 334 |
| 335 UINT16 glyphId = gId; |
| 336 DWRITE_GLYPH_METRICS gm; |
| 337 HRESULT hr = fontFace->GetDesignGlyphMetrics(&glyphId, 1, &gm); |
| 338 |
| 339 if (FAILED(hr)) { |
| 340 *advance = 0; |
| 341 return false; |
| 342 } |
| 343 |
| 344 *advance = gm.advanceWidth; |
| 345 return true; |
| 346 } |
| 347 |
| 348 SkAdvancedTypefaceMetrics* DWriteFontTypeface::onGetAdvancedTypefaceMetrics( |
| 349 SkAdvancedTypefaceMetrics::PerGlyphInfo perGlyphInfo, |
| 350 const uint32_t* glyphIDs, |
| 351 uint32_t glyphIDsCount) const { |
| 352 |
| 353 SkAdvancedTypefaceMetrics* info = NULL; |
| 354 |
| 355 HRESULT hr = S_OK; |
| 356 |
| 357 const unsigned glyphCount = fDWriteFontFace->GetGlyphCount(); |
| 358 |
| 359 DWRITE_FONT_METRICS dwfm; |
| 360 fDWriteFontFace->GetMetrics(&dwfm); |
| 361 |
| 362 info = new SkAdvancedTypefaceMetrics; |
| 363 info->fEmSize = dwfm.designUnitsPerEm; |
| 364 info->fMultiMaster = false; |
| 365 info->fLastGlyphID = SkToU16(glyphCount - 1); |
| 366 info->fStyle = 0; |
| 367 |
| 368 |
| 369 SkTScopedComPtr<IDWriteLocalizedStrings> familyNames; |
| 370 SkTScopedComPtr<IDWriteLocalizedStrings> faceNames; |
| 371 hr = fDWriteFontFamily->GetFamilyNames(&familyNames); |
| 372 hr = fDWriteFont->GetFaceNames(&faceNames); |
| 373 |
| 374 UINT32 familyNameLength; |
| 375 hr = familyNames->GetStringLength(0, &familyNameLength); |
| 376 |
| 377 UINT32 faceNameLength; |
| 378 hr = faceNames->GetStringLength(0, &faceNameLength); |
| 379 |
| 380 UINT32 size = familyNameLength+1+faceNameLength+1; |
| 381 SkSMallocWCHAR wFamilyName(size); |
| 382 hr = familyNames->GetString(0, wFamilyName.get(), size); |
| 383 wFamilyName[familyNameLength] = L' '; |
| 384 hr = faceNames->GetString(0, &wFamilyName[familyNameLength+1], size - faceNa
meLength + 1); |
| 385 |
| 386 hr = sk_wchar_to_skstring(wFamilyName.get(), &info->fFontName); |
| 387 |
| 388 if (perGlyphInfo & SkAdvancedTypefaceMetrics::kToUnicode_PerGlyphInfo) { |
| 389 populate_glyph_to_unicode(fDWriteFontFace.get(), glyphCount, &(info->fGl
yphToUnicode)); |
| 390 } |
| 391 |
| 392 DWRITE_FONT_FACE_TYPE fontType = fDWriteFontFace->GetType(); |
| 393 if (fontType == DWRITE_FONT_FACE_TYPE_TRUETYPE || |
| 394 fontType == DWRITE_FONT_FACE_TYPE_TRUETYPE_COLLECTION) { |
| 395 info->fType = SkAdvancedTypefaceMetrics::kTrueType_Font; |
| 396 } else { |
| 397 info->fType = SkAdvancedTypefaceMetrics::kOther_Font; |
| 398 info->fItalicAngle = 0; |
| 399 info->fAscent = dwfm.ascent;; |
| 400 info->fDescent = dwfm.descent; |
| 401 info->fStemV = 0; |
| 402 info->fCapHeight = dwfm.capHeight; |
| 403 info->fBBox = SkIRect::MakeEmpty(); |
| 404 return info; |
| 405 } |
| 406 |
| 407 AutoTDWriteTable<SkOTTableHead> headTable(fDWriteFontFace.get()); |
| 408 AutoTDWriteTable<SkOTTablePostScript> postTable(fDWriteFontFace.get()); |
| 409 AutoTDWriteTable<SkOTTableHorizontalHeader> hheaTable(fDWriteFontFace.get())
; |
| 410 AutoTDWriteTable<SkOTTableOS2> os2Table(fDWriteFontFace.get()); |
| 411 if (!headTable.fExists || !postTable.fExists || !hheaTable.fExists || !os2Ta
ble.fExists) { |
| 412 info->fItalicAngle = 0; |
| 413 info->fAscent = dwfm.ascent;; |
| 414 info->fDescent = dwfm.descent; |
| 415 info->fStemV = 0; |
| 416 info->fCapHeight = dwfm.capHeight; |
| 417 info->fBBox = SkIRect::MakeEmpty(); |
| 418 return info; |
| 419 } |
| 420 |
| 421 //There exist CJK fonts which set the IsFixedPitch and Monospace bits, |
| 422 //but have full width, latin half-width, and half-width kana. |
| 423 bool fixedWidth = (postTable->isFixedPitch && |
| 424 (1 == SkEndian_SwapBE16(hheaTable->numberOfHMetrics))); |
| 425 //Monospace |
| 426 if (fixedWidth) { |
| 427 info->fStyle |= SkAdvancedTypefaceMetrics::kFixedPitch_Style; |
| 428 } |
| 429 //Italic |
| 430 if (os2Table->version.v0.fsSelection.field.Italic) { |
| 431 info->fStyle |= SkAdvancedTypefaceMetrics::kItalic_Style; |
| 432 } |
| 433 //Script |
| 434 if (SkPanose::FamilyType::Script == os2Table->version.v0.panose.bFamilyType.
value) { |
| 435 info->fStyle |= SkAdvancedTypefaceMetrics::kScript_Style; |
| 436 //Serif |
| 437 } else if (SkPanose::FamilyType::TextAndDisplay == os2Table->version.v0.pano
se.bFamilyType.value && |
| 438 SkPanose::Data::TextAndDisplay::SerifStyle::Triangle <= os2Table-
>version.v0.panose.data.textAndDisplay.bSerifStyle.value && |
| 439 SkPanose::Data::TextAndDisplay::SerifStyle::NoFit != os2Table->ve
rsion.v0.panose.data.textAndDisplay.bSerifStyle.value) { |
| 440 info->fStyle |= SkAdvancedTypefaceMetrics::kSerif_Style; |
| 441 } |
| 442 |
| 443 info->fItalicAngle = SkEndian_SwapBE32(postTable->italicAngle) >> 16; |
| 444 |
| 445 info->fAscent = SkToS16(dwfm.ascent); |
| 446 info->fDescent = SkToS16(dwfm.descent); |
| 447 info->fCapHeight = SkToS16(dwfm.capHeight); |
| 448 |
| 449 info->fBBox = SkIRect::MakeLTRB((int32_t)SkEndian_SwapBE16((uint16_t)headTab
le->xMin), |
| 450 (int32_t)SkEndian_SwapBE16((uint16_t)headTab
le->yMax), |
| 451 (int32_t)SkEndian_SwapBE16((uint16_t)headTab
le->xMax), |
| 452 (int32_t)SkEndian_SwapBE16((uint16_t)headTab
le->yMin)); |
| 453 |
| 454 //TODO: is this even desired? It seems PDF only wants this value for Type1 |
| 455 //fonts, and we only get here for TrueType fonts. |
| 456 info->fStemV = 0; |
| 457 /* |
| 458 // Figure out a good guess for StemV - Min width of i, I, !, 1. |
| 459 // This probably isn't very good with an italic font. |
| 460 int16_t min_width = SHRT_MAX; |
| 461 info->fStemV = 0; |
| 462 char stem_chars[] = {'i', 'I', '!', '1'}; |
| 463 for (size_t i = 0; i < SK_ARRAY_COUNT(stem_chars); i++) { |
| 464 ABC abcWidths; |
| 465 if (GetCharABCWidths(hdc, stem_chars[i], stem_chars[i], &abcWidths)) { |
| 466 int16_t width = abcWidths.abcB; |
| 467 if (width > 0 && width < min_width) { |
| 468 min_width = width; |
| 469 info->fStemV = min_width; |
| 470 } |
| 471 } |
| 472 } |
| 473 */ |
| 474 |
| 475 // If Restricted, the font may not be embedded in a document. |
| 476 // If not Restricted, the font can be embedded. |
| 477 // If PreviewPrint, the embedding is read-only. |
| 478 if (os2Table->version.v0.fsType.field.Restricted) { |
| 479 info->fType = SkAdvancedTypefaceMetrics::kNotEmbeddable_Font; |
| 480 } else if (perGlyphInfo & SkAdvancedTypefaceMetrics::kHAdvance_PerGlyphInfo)
{ |
| 481 if (fixedWidth) { |
| 482 appendRange(&info->fGlyphWidths, 0); |
| 483 int16_t advance; |
| 484 getWidthAdvance(fDWriteFontFace.get(), 1, &advance); |
| 485 info->fGlyphWidths->fAdvance.append(1, &advance); |
| 486 finishRange(info->fGlyphWidths.get(), 0, |
| 487 SkAdvancedTypefaceMetrics::WidthRange::kDefault); |
| 488 } else { |
| 489 info->fGlyphWidths.reset( |
| 490 getAdvanceData(fDWriteFontFace.get(), |
| 491 glyphCount, |
| 492 glyphIDs, |
| 493 glyphIDsCount, |
| 494 getWidthAdvance)); |
| 495 } |
| 496 } |
| 497 |
| 498 return info; |
| 499 } |
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