qharfbuzzng.cpp

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39 ****************************************************************************/ -

40 -

41 #include "qharfbuzzng_p.h" -

42 -

43 #include <qstring.h> -

44 #include <qvector.h> -

45 -

46 #include <private/qstringiterator_p.h> -

47 -

48 #include "qfontengine_p.h" -

49 -

50 QT_BEGIN_NAMESPACE -

51 -

52 // Unicode routines -

53 -

54 static const hb_script_t _qtscript_to_hbscript[] = { -

55 HB_SCRIPT_UNKNOWN, -

56 HB_SCRIPT_INHERITED, -

57 HB_SCRIPT_COMMON, -

58 -

59 HB_SCRIPT_LATIN, -

60 HB_SCRIPT_GREEK, -

61 HB_SCRIPT_CYRILLIC, -

62 HB_SCRIPT_ARMENIAN, -

63 HB_SCRIPT_HEBREW, -

64 HB_SCRIPT_ARABIC, -

65 HB_SCRIPT_SYRIAC, -

66 HB_SCRIPT_THAANA, -

67 HB_SCRIPT_DEVANAGARI, -

68 HB_SCRIPT_BENGALI, -

69 HB_SCRIPT_GURMUKHI, -

70 HB_SCRIPT_GUJARATI, -

71 HB_SCRIPT_ORIYA, -

72 HB_SCRIPT_TAMIL, -

73 HB_SCRIPT_TELUGU, -

74 HB_SCRIPT_KANNADA, -

75 HB_SCRIPT_MALAYALAM, -

76 HB_SCRIPT_SINHALA, -

77 HB_SCRIPT_THAI, -

78 HB_SCRIPT_LAO, -

79 HB_SCRIPT_TIBETAN, -

80 HB_SCRIPT_MYANMAR, -

81 HB_SCRIPT_GEORGIAN, -

82 HB_SCRIPT_HANGUL, -

83 HB_SCRIPT_ETHIOPIC, -

84 HB_SCRIPT_CHEROKEE, -

85 HB_SCRIPT_CANADIAN_ABORIGINAL, -

86 HB_SCRIPT_OGHAM, -

87 HB_SCRIPT_RUNIC, -

88 HB_SCRIPT_KHMER, -

89 HB_SCRIPT_MONGOLIAN, -

90 HB_SCRIPT_HIRAGANA, -

91 HB_SCRIPT_KATAKANA, -

92 HB_SCRIPT_BOPOMOFO, -

93 HB_SCRIPT_HAN, -

94 HB_SCRIPT_YI, -

95 HB_SCRIPT_OLD_ITALIC, -

96 HB_SCRIPT_GOTHIC, -

97 HB_SCRIPT_DESERET, -

98 HB_SCRIPT_TAGALOG, -

99 HB_SCRIPT_HANUNOO, -

100 HB_SCRIPT_BUHID, -

101 HB_SCRIPT_TAGBANWA, -

102 HB_SCRIPT_COPTIC, -

103 -

104 // Unicode 4.0 additions -

105 HB_SCRIPT_LIMBU, -

106 HB_SCRIPT_TAI_LE, -

107 HB_SCRIPT_LINEAR_B, -

108 HB_SCRIPT_UGARITIC, -

109 HB_SCRIPT_SHAVIAN, -

110 HB_SCRIPT_OSMANYA, -

111 HB_SCRIPT_CYPRIOT, -

112 HB_SCRIPT_BRAILLE, -

113 -

114 // Unicode 4.1 additions -

115 HB_SCRIPT_BUGINESE, -

116 HB_SCRIPT_NEW_TAI_LUE, -

117 HB_SCRIPT_GLAGOLITIC, -

118 HB_SCRIPT_TIFINAGH, -

119 HB_SCRIPT_SYLOTI_NAGRI, -

120 HB_SCRIPT_OLD_PERSIAN, -

121 HB_SCRIPT_KHAROSHTHI, -

122 -

123 // Unicode 5.0 additions -

124 HB_SCRIPT_BALINESE, -

125 HB_SCRIPT_CUNEIFORM, -

126 HB_SCRIPT_PHOENICIAN, -

127 HB_SCRIPT_PHAGS_PA, -

128 HB_SCRIPT_NKO, -

129 -

130 // Unicode 5.1 additions -

131 HB_SCRIPT_SUNDANESE, -

132 HB_SCRIPT_LEPCHA, -

133 HB_SCRIPT_OL_CHIKI, -

134 HB_SCRIPT_VAI, -

135 HB_SCRIPT_SAURASHTRA, -

136 HB_SCRIPT_KAYAH_LI, -

137 HB_SCRIPT_REJANG, -

138 HB_SCRIPT_LYCIAN, -

139 HB_SCRIPT_CARIAN, -

140 HB_SCRIPT_LYDIAN, -

141 HB_SCRIPT_CHAM, -

142 -

143 // Unicode 5.2 additions -

144 HB_SCRIPT_TAI_THAM, -

145 HB_SCRIPT_TAI_VIET, -

146 HB_SCRIPT_AVESTAN, -

147 HB_SCRIPT_EGYPTIAN_HIEROGLYPHS, -

148 HB_SCRIPT_SAMARITAN, -

149 HB_SCRIPT_LISU, -

150 HB_SCRIPT_BAMUM, -

151 HB_SCRIPT_JAVANESE, -

152 HB_SCRIPT_MEETEI_MAYEK, -

153 HB_SCRIPT_IMPERIAL_ARAMAIC, -

154 HB_SCRIPT_OLD_SOUTH_ARABIAN, -

155 HB_SCRIPT_INSCRIPTIONAL_PARTHIAN, -

156 HB_SCRIPT_INSCRIPTIONAL_PAHLAVI, -

157 HB_SCRIPT_OLD_TURKIC, -

158 HB_SCRIPT_KAITHI, -

159 -

160 // Unicode 6.0 additions -

161 HB_SCRIPT_BATAK, -

162 HB_SCRIPT_BRAHMI, -

163 HB_SCRIPT_MANDAIC, -

164 -

165 // Unicode 6.1 additions -

166 HB_SCRIPT_CHAKMA, -

167 HB_SCRIPT_MEROITIC_CURSIVE, -

168 HB_SCRIPT_MEROITIC_HIEROGLYPHS, -

169 HB_SCRIPT_MIAO, -

170 HB_SCRIPT_SHARADA, -

171 HB_SCRIPT_SORA_SOMPENG, -

172 HB_SCRIPT_TAKRI, -

173 -

174 // Unicode 7.0 additions -

175 HB_SCRIPT_CAUCASIAN_ALBANIAN, -

176 HB_SCRIPT_BASSA_VAH, -

177 HB_SCRIPT_DUPLOYAN, -

178 HB_SCRIPT_ELBASAN, -

179 HB_SCRIPT_GRANTHA, -

180 HB_SCRIPT_PAHAWH_HMONG, -

181 HB_SCRIPT_KHOJKI, -

182 HB_SCRIPT_LINEAR_A, -

183 HB_SCRIPT_MAHAJANI, -

184 HB_SCRIPT_MANICHAEAN, -

185 HB_SCRIPT_MENDE_KIKAKUI, -

186 HB_SCRIPT_MODI, -

187 HB_SCRIPT_MRO, -

188 HB_SCRIPT_OLD_NORTH_ARABIAN, -

189 HB_SCRIPT_NABATAEAN, -

190 HB_SCRIPT_PALMYRENE, -

191 HB_SCRIPT_PAU_CIN_HAU, -

192 HB_SCRIPT_OLD_PERMIC, -

193 HB_SCRIPT_PSALTER_PAHLAVI, -

194 HB_SCRIPT_SIDDHAM, -

195 HB_SCRIPT_KHUDAWADI, -

196 HB_SCRIPT_TIRHUTA, -

197 HB_SCRIPT_WARANG_CITI, -

198 -

199 // Unicode 8.0 additions -

200 HB_SCRIPT_AHOM, -

201 HB_SCRIPT_ANATOLIAN_HIEROGLYPHS, -

202 HB_SCRIPT_HATRAN, -

203 HB_SCRIPT_MULTANI, -

204 HB_SCRIPT_OLD_HUNGARIAN, -

205 HB_SCRIPT_SIGNWRITING -

206 }; -

207 Q_STATIC_ASSERT(QChar::ScriptCount == sizeof(_qtscript_to_hbscript) / sizeof(_qtscript_to_hbscript[0])); -

208 -

209 hb_script_t hb_qt_script_to_script(QChar::Script script) -

210 { -

211 return _qtscript_to_hbscript[script]; -

212 } -

213 -

214 QChar::Script hb_qt_script_from_script(hb_script_t script) -

215 { -

216 uint i = QChar::ScriptCount - 1; -

217 while (i > QChar::Script_Unknown && _qtscript_to_hbscript[i] != script) -

218 --i; -

219 return QChar::Script(i); -

220 } -

221 -

222 -

223 static hb_unicode_combining_class_t -

224 _hb_qt_unicode_combining_class(hb_unicode_funcs_t * /*ufuncs*/, -

225 hb_codepoint_t unicode, -

226 void * /*user_data*/) -

227 { -

228 return hb_unicode_combining_class_t(QChar::combiningClass(unicode)); -

229 } -

230 -

231 static unsigned int -

232 _hb_qt_unicode_eastasian_width(hb_unicode_funcs_t * /*ufuncs*/, -

233 hb_codepoint_t /*unicode*/, -

234 void * /*user_data*/) -

235 { -

236 qCritical("hb_qt_unicode_eastasian_width: not implemented!"); -

237 return 1; -

238 } -

239 -

240 static const hb_unicode_general_category_t _qtcategory_to_hbcategory[] = { -

241 HB_UNICODE_GENERAL_CATEGORY_NON_SPACING_MARK, // Mn -

242 HB_UNICODE_GENERAL_CATEGORY_SPACING_MARK, // Mc -

243 HB_UNICODE_GENERAL_CATEGORY_ENCLOSING_MARK, // Me -

244 -

245 HB_UNICODE_GENERAL_CATEGORY_DECIMAL_NUMBER, // Nd -

246 HB_UNICODE_GENERAL_CATEGORY_LETTER_NUMBER, // Nl -

247 HB_UNICODE_GENERAL_CATEGORY_OTHER_NUMBER, // No -

248 -

249 HB_UNICODE_GENERAL_CATEGORY_SPACE_SEPARATOR, // Zs -

250 HB_UNICODE_GENERAL_CATEGORY_LINE_SEPARATOR, // Zl -

251 HB_UNICODE_GENERAL_CATEGORY_PARAGRAPH_SEPARATOR, // Zp -

252 -

253 HB_UNICODE_GENERAL_CATEGORY_CONTROL, // Cc -

254 HB_UNICODE_GENERAL_CATEGORY_FORMAT, // Cf -

255 HB_UNICODE_GENERAL_CATEGORY_SURROGATE, // Cs -

256 HB_UNICODE_GENERAL_CATEGORY_PRIVATE_USE, // Co -

257 HB_UNICODE_GENERAL_CATEGORY_UNASSIGNED, // Cn -

258 -

259 HB_UNICODE_GENERAL_CATEGORY_UPPERCASE_LETTER, // Lu -

260 HB_UNICODE_GENERAL_CATEGORY_LOWERCASE_LETTER, // Ll -

261 HB_UNICODE_GENERAL_CATEGORY_TITLECASE_LETTER, // Lt -

262 HB_UNICODE_GENERAL_CATEGORY_MODIFIER_LETTER, // Lm -

263 HB_UNICODE_GENERAL_CATEGORY_OTHER_LETTER, // Lo -

264 -

265 HB_UNICODE_GENERAL_CATEGORY_CONNECT_PUNCTUATION, // Pc -

266 HB_UNICODE_GENERAL_CATEGORY_DASH_PUNCTUATION, // Pd -

267 HB_UNICODE_GENERAL_CATEGORY_OPEN_PUNCTUATION, // Ps -

268 HB_UNICODE_GENERAL_CATEGORY_CLOSE_PUNCTUATION, // Pe -

269 HB_UNICODE_GENERAL_CATEGORY_INITIAL_PUNCTUATION, // Pi -

270 HB_UNICODE_GENERAL_CATEGORY_FINAL_PUNCTUATION, // Pf -

271 HB_UNICODE_GENERAL_CATEGORY_OTHER_PUNCTUATION, // Po -

272 -

273 HB_UNICODE_GENERAL_CATEGORY_MATH_SYMBOL, // Sm -

274 HB_UNICODE_GENERAL_CATEGORY_CURRENCY_SYMBOL, // Sc -

275 HB_UNICODE_GENERAL_CATEGORY_MODIFIER_SYMBOL, // Sk -

276 HB_UNICODE_GENERAL_CATEGORY_OTHER_SYMBOL // So -

277 }; -

278 -

279 static hb_unicode_general_category_t -

280 _hb_qt_unicode_general_category(hb_unicode_funcs_t * /*ufuncs*/, -

281 hb_codepoint_t unicode, -

282 void * /*user_data*/) -

283 { -

284 return _qtcategory_to_hbcategory[QChar::category(unicode)]; -

285 } -

286 -

287 static hb_codepoint_t -

288 _hb_qt_unicode_mirroring(hb_unicode_funcs_t * /*ufuncs*/, -

289 hb_codepoint_t unicode, -

290 void * /*user_data*/) -

291 { -

292 return QChar::mirroredChar(unicode); -

293 } -

294 -

295 static hb_script_t -

296 _hb_qt_unicode_script(hb_unicode_funcs_t * /*ufuncs*/, -

297 hb_codepoint_t unicode, -

298 void * /*user_data*/) -

299 { -

300 return _qtscript_to_hbscript[QChar::script(unicode)]; -

301 } -

302 -

303 static hb_bool_t -

304 _hb_qt_unicode_compose(hb_unicode_funcs_t * /*ufuncs*/, -

305 hb_codepoint_t a, hb_codepoint_t b, -

306 hb_codepoint_t *ab, -

307 void * /*user_data*/) -

308 { -

309 // ### optimize -

310 QString s = QString::fromUcs4(&a, 1) + QString::fromUcs4(&b, 1); -

311 QString normalized = s.normalized(QString::NormalizationForm_C); -

312 -

313 QStringIterator it(normalized); -

314 Q_ASSERT(it.hasNext()); // size>0 -

315 *ab = it.next(); -

316 -

317 return !it.hasNext(); // size==1 -

318 } -

319 -

320 static hb_bool_t -

321 _hb_qt_unicode_decompose(hb_unicode_funcs_t * /*ufuncs*/, -

322 hb_codepoint_t ab, -

323 hb_codepoint_t *a, hb_codepoint_t *b, -

324 void * /*user_data*/) -

325 { -

326 // ### optimize -

327 if (QChar::decompositionTag(ab) != QChar::Canonical) // !NFD -

328 return false; -

329 -

330 QString normalized = QChar::decomposition(ab); -

331 if (normalized.isEmpty()) -

332 return false; -

333 -

334 QStringIterator it(normalized); -

335 Q_ASSERT(it.hasNext()); // size>0 -

336 *a = it.next(); -

337 -

338 if (!it.hasNext()) { // size==1 -

339 *b = 0; -

340 return *a != ab; -

341 } -

342 -

343 // size>1 -

344 *b = it.next(); -

345 if (!it.hasNext()) { // size==2 -

346 // Here's the ugly part: if ab decomposes to a single character and -

347 // that character decomposes again, we have to detect that and undo -

348 // the second part :-( -

349 const QString recomposed = normalized.normalized(QString::NormalizationForm_C); -

350 QStringIterator jt(recomposed); -

351 Q_ASSERT(jt.hasNext()); // size>0 -

352 const hb_codepoint_t c = jt.next(); -

353 if (c != *a && c != ab) { -

354 *a = c; -

355 *b = 0; -

356 } -

357 return true; -

358 } -

359 -

360 // size>2 -

361 // If decomposed to more than two characters, take the last one, -

362 // and recompose the rest to get the first component -

363 do { -

364 *b = it.next(); -

365 } while (it.hasNext()); -

366 normalized.chop(QChar::requiresSurrogates(*b) ? 2 : 1); -

367 const QString recomposed = normalized.normalized(QString::NormalizationForm_C); -

368 QStringIterator jt(recomposed); -

369 Q_ASSERT(jt.hasNext()); // size>0 -

370 // We expect that recomposed has exactly one character now -

371 *a = jt.next(); -

372 return true; -

373 } -

374 -

375 static unsigned int -

376 _hb_qt_unicode_decompose_compatibility(hb_unicode_funcs_t * /*ufuncs*/, -

377 hb_codepoint_t u, -

378 hb_codepoint_t *decomposed, -

379 void * /*user_data*/) -

380 { -

381 const QString normalized = QChar::decomposition(u); -

382 -

383 uint outlen = 0; -

384 QStringIterator it(normalized); -

385 while (it.hasNext()) { -

386 Q_ASSERT(outlen < HB_UNICODE_MAX_DECOMPOSITION_LEN); -

387 decomposed[outlen++] = it.next(); -

388 } -

389 -

390 return outlen; -

391 } -

392 -

393 -

394 struct _hb_unicode_funcs_t { -

395 _hb_unicode_funcs_t() -

396 { -

397 funcs = hb_unicode_funcs_create(NULL); -

398 hb_unicode_funcs_set_combining_class_func(funcs, _hb_qt_unicode_combining_class, NULL, NULL); -

399 hb_unicode_funcs_set_eastasian_width_func(funcs, _hb_qt_unicode_eastasian_width, NULL, NULL); -

400 hb_unicode_funcs_set_general_category_func(funcs, _hb_qt_unicode_general_category, NULL, NULL); -

401 hb_unicode_funcs_set_mirroring_func(funcs, _hb_qt_unicode_mirroring, NULL, NULL); -

402 hb_unicode_funcs_set_script_func(funcs, _hb_qt_unicode_script, NULL, NULL); -

403 hb_unicode_funcs_set_compose_func(funcs, _hb_qt_unicode_compose, NULL, NULL); -

404 hb_unicode_funcs_set_decompose_func(funcs, _hb_qt_unicode_decompose, NULL, NULL); -

405 hb_unicode_funcs_set_decompose_compatibility_func(funcs, _hb_qt_unicode_decompose_compatibility, NULL, NULL); -

406 } -

407 ~_hb_unicode_funcs_t() -

408 { -

409 hb_unicode_funcs_destroy(funcs); -

410 } -

411 -

412 hb_unicode_funcs_t *funcs; -

413 }; -

414 -

415 Q_GLOBAL_STATIC(_hb_unicode_funcs_t, qt_ufuncs) -

416 -

417 hb_unicode_funcs_t *hb_qt_get_unicode_funcs() -

418 { -

419 return qt_ufuncs()->funcs; -

420 } -

421 -

422 -

423 // Font routines -

424 -

425 static hb_bool_t -

426 _hb_qt_font_get_glyph(hb_font_t * /*font*/, void *font_data, -

427 hb_codepoint_t unicode, hb_codepoint_t /*variation_selector*/, -

428 hb_codepoint_t *glyph, -

429 void * /*user_data*/) -

430 { -

431 QFontEngine *fe = static_cast<QFontEngine *>(font_data); -

432 Q_ASSERT(fe); -

433 -

434 *glyph = fe->glyphIndex(unicode); -

435 -

436 return true; -

437 } -

438 -

439 static hb_position_t -

440 _hb_qt_font_get_glyph_h_advance(hb_font_t *font, void *font_data, -

441 hb_codepoint_t glyph, -

442 void * /*user_data*/) -

443 { -

444 QFontEngine *fe = static_cast<QFontEngine *>(font_data); -

445 Q_ASSERT(fe); -

446 -

447 QFixed advance; -

448 -

449 QGlyphLayout g; -

450 g.numGlyphs = 1; -

451 g.glyphs = &glyph; -

452 g.advances = &advance; -

453 -

454 fe->recalcAdvances(&g, QFontEngine::ShaperFlags(hb_qt_font_get_use_design_metrics(font))); -

455 -

456 return advance.value(); -

457 } -

458 -

459 static hb_position_t -

460 _hb_qt_font_get_glyph_v_advance(hb_font_t * /*font*/, void * /*font_data*/, -

461 hb_codepoint_t /*glyph*/, -

462 void * /*user_data*/) -

463 { -

464 qCritical("hb_qt_font_get_glyph_v_advance: vertical writing isn't supported!"); -

465 return 0; -

466 } -

467 -

468 static hb_bool_t -

469 _hb_qt_font_get_glyph_h_origin(hb_font_t * /*font*/, void * /*font_data*/, -

470 hb_codepoint_t /*glyph*/, -

471 hb_position_t * /*x*/, hb_position_t * /*y*/, -

472 void * /*user_data*/) -

473 { -

474 return true; // we always work in the horizontal coordinates -

475 } -

476 -

477 static hb_bool_t -

478 _hb_qt_font_get_glyph_v_origin(hb_font_t * /*font*/, void * /*font_data*/, -

479 hb_codepoint_t /*glyph*/, -

480 hb_position_t * /*x*/, hb_position_t * /*y*/, -

481 void * /*user_data*/) -

482 { -

483 qCritical("hb_qt_get_glyph_v_origin: vertical writing isn't supported!"); -

484 return false; -

485 } -

486 -

487 static hb_position_t -

488 _hb_qt_font_get_glyph_h_kerning(hb_font_t *font, void *font_data, -

489 hb_codepoint_t first_glyph, hb_codepoint_t second_glyph, -

490 void * /*user_data*/) -

491 { -

492 QFontEngine *fe = static_cast<QFontEngine *>(font_data); -

493 Q_ASSERT(fe); -

494 -

495 glyph_t glyphs[2] = { first_glyph, second_glyph }; -

496 QFixed advance; -

497 -

498 QGlyphLayout g; -

499 g.numGlyphs = 2; -

500 g.glyphs = glyphs; -

501 g.advances = &advance; -

502 -

503 fe->doKerning(&g, QFontEngine::ShaperFlags(hb_qt_font_get_use_design_metrics(font))); -

504 -

505 return advance.value(); -

506 } -

507 -

508 static hb_position_t -

509 _hb_qt_font_get_glyph_v_kerning(hb_font_t * /*font*/, void * /*font_data*/, -

510 hb_codepoint_t /*first_glyph*/, hb_codepoint_t /*second_glyph*/, -

511 void * /*user_data*/) -

512 { -

513 qCritical("hb_qt_get_glyph_v_kerning: vertical writing isn't supported!"); -

514 return 0; -

515 } -

516 -

517 static hb_bool_t -

518 _hb_qt_font_get_glyph_extents(hb_font_t * /*font*/, void *font_data, -

519 hb_codepoint_t glyph, -

520 hb_glyph_extents_t *extents, -

521 void * /*user_data*/) -

522 { -

523 QFontEngine *fe = static_cast<QFontEngine *>(font_data); -

524 Q_ASSERT(fe); -

525 -

526 glyph_metrics_t gm = fe->boundingBox(glyph); -

527 -

528 extents->x_bearing = gm.x.value(); -

529 extents->y_bearing = gm.y.value(); -

530 extents->width = gm.width.value(); -

531 extents->height = gm.height.value(); -

532 -

533 return true; -

534 } -

535 -

536 static hb_bool_t -

537 _hb_qt_font_get_glyph_contour_point(hb_font_t * /*font*/, void *font_data, -

538 hb_codepoint_t glyph, -

539 unsigned int point_index, hb_position_t *x, hb_position_t *y, -

540 void * /*user_data*/) -

541 { -

542 QFontEngine *fe = static_cast<QFontEngine *>(font_data); -

543 Q_ASSERT(fe); -

544 -

545 QFixed xpos, ypos; -

546 quint32 numPoints = 1; -

547 if (Q_LIKELY(fe->getPointInOutline(glyph, 0, point_index, &xpos, &ypos, &numPoints) == 0)) { -

548 *x = xpos.value(); -

549 *y = ypos.value(); -

550 return true; -

551 } -

552 -

553 *x = *y = 0; -

554 return false; -

555 } -

556 -

557 static hb_bool_t -

558 _hb_qt_font_get_glyph_name(hb_font_t * /*font*/, void * /*font_data*/, -

559 hb_codepoint_t /*glyph*/, -

560 char *name, unsigned int size, -

561 void * /*user_data*/) -

562 { -

563 qCritical("hb_qt_font_get_glyph_name: not implemented!"); -

564 if (size) -

565 *name = '\0'; -

566 return false; -

567 } -

568 -

569 static hb_bool_t -

570 _hb_qt_font_get_glyph_from_name(hb_font_t * /*font*/, void * /*font_data*/, -

571 const char * /*name*/, int /*len*/, -

572 hb_codepoint_t *glyph, -

573 void * /*user_data*/) -

574 { -

575 qCritical("hb_qt_font_get_glyph_from_name: not implemented!"); -

576 *glyph = 0; -

577 return false; -

578 } -

579 -

580 -

581 static hb_user_data_key_t _useDesignMetricsKey; -

582 -

583 void hb_qt_font_set_use_design_metrics(hb_font_t *font, uint value) -

584 { -

585 hb_font_set_user_data(font, &_useDesignMetricsKey, (void *)quintptr(value), NULL, true); -

586 } -

587 -

588 uint hb_qt_font_get_use_design_metrics(hb_font_t *font) -

589 { -

590 return quintptr(hb_font_get_user_data(font, &_useDesignMetricsKey)); -

591 } -

592 -

593 -

594 struct _hb_qt_font_funcs_t { -

595 _hb_qt_font_funcs_t() -

596 { -

597 funcs = hb_font_funcs_create(); -

598 hb_font_funcs_set_glyph_func(funcs, _hb_qt_font_get_glyph, NULL, NULL); -

599 hb_font_funcs_set_glyph_h_advance_func(funcs, _hb_qt_font_get_glyph_h_advance, NULL, NULL); -

600 hb_font_funcs_set_glyph_v_advance_func(funcs, _hb_qt_font_get_glyph_v_advance, NULL, NULL); -

601 hb_font_funcs_set_glyph_h_origin_func(funcs, _hb_qt_font_get_glyph_h_origin, NULL, NULL); -

602 hb_font_funcs_set_glyph_v_origin_func(funcs, _hb_qt_font_get_glyph_v_origin, NULL, NULL); -

603 hb_font_funcs_set_glyph_h_kerning_func(funcs, _hb_qt_font_get_glyph_h_kerning, NULL, NULL); -

604 hb_font_funcs_set_glyph_v_kerning_func(funcs, _hb_qt_font_get_glyph_v_kerning, NULL, NULL); -

605 hb_font_funcs_set_glyph_extents_func(funcs, _hb_qt_font_get_glyph_extents, NULL, NULL); -

606 hb_font_funcs_set_glyph_contour_point_func(funcs, _hb_qt_font_get_glyph_contour_point, NULL, NULL); -

607 hb_font_funcs_set_glyph_name_func(funcs, _hb_qt_font_get_glyph_name, NULL, NULL); -

608 hb_font_funcs_set_glyph_from_name_func(funcs, _hb_qt_font_get_glyph_from_name, NULL, NULL); -

609 } -

610 ~_hb_qt_font_funcs_t() -

611 { -

612 hb_font_funcs_destroy(funcs); -

613 } -

614 -

615 hb_font_funcs_t *funcs; -

616 }; -

617 -

618 Q_GLOBAL_STATIC(_hb_qt_font_funcs_t, qt_ffuncs) -

619 -

620 hb_font_funcs_t *hb_qt_get_font_funcs() -

621 { -

622 return qt_ffuncs()->funcs; -

623 } -

624 -

625 -

626 static hb_blob_t * -

627 _hb_qt_reference_table(hb_face_t * /*face*/, hb_tag_t tag, void *user_data) -

628 { -

629 QFontEngine::FaceData *data = static_cast<QFontEngine::FaceData *>(user_data); -

630 Q_ASSERT(data); -

631 -

632 qt_get_font_table_func_t get_font_table = data->get_font_table; -

633 Q_ASSERT(get_font_table); -

634 -

635 uint length = 0; -

636 if (Q_UNLIKELY(!get_font_table(data->user_data, tag, 0, &length))) -

637 return hb_blob_get_empty(); -

638 -

639 char *buffer = static_cast<char *>(malloc(length)); -

640 Q_CHECK_PTR(buffer); -

641 -

642 if (Q_UNLIKELY(!get_font_table(data->user_data, tag, reinterpret_cast<uchar *>(buffer), &length))) -

643 length = 0; -

644 -

645 return hb_blob_create(const_cast<const char *>(buffer), length, -

646 HB_MEMORY_MODE_READONLY, -

647 buffer, free); -

648 } -

649 -

650 static inline hb_face_t * -

651 _hb_qt_face_create(QFontEngine *fe) -

652 { -

653 QFontEngine::FaceData *data = static_cast<QFontEngine::FaceData *>(malloc(sizeof(QFontEngine::FaceData))); -

654 Q_CHECK_PTR(data); -

655 data->user_data = fe->faceData.user_data; -

656 data->get_font_table = fe->faceData.get_font_table; -

657 -

658 hb_face_t *face = hb_face_create_for_tables(_hb_qt_reference_table, (void *)data, free); -

659 if (Q_UNLIKELY(hb_face_is_immutable(face))) { -

660 hb_face_destroy(face); -

661 return NULL; -

662 } -

663 -

664 hb_face_set_index(face, fe->faceId().index); -

665 hb_face_set_upem(face, fe->emSquareSize().truncate()); -

666 -

667 return face; -

668 } -

669 -

670 static void -

671 _hb_qt_face_release(void *user_data) -

672 { -

673 if (Q_LIKELY(user_data)) -

674 hb_face_destroy(static_cast<hb_face_t *>(user_data)); -

675 } -

676 -

677 hb_face_t *hb_qt_face_get_for_engine(QFontEngine *fe) -

678 { -

679 Q_ASSERT(fe && fe->type() != QFontEngine::Multi); -

680 -

681

if (Q_UNLIKELY(!fe->face_))

__builtin_expe...face_), false)	Description
TRUE	never evaluated
FALSE	never evaluated

682

{fe->face_ = _hb_qt_face_createQFontEngine::Holder(fe);

never executed: fe->face_ = QFontEngine::Holder(_hb_qt_face_create(fe), _hb_qt_face_release);

_hb_qt_face_create(Q_UNLIKELY(!fe->face_))

never executed: fe->face_ = QFontEngine::Holder(_hb_qt_face_create(fe), _hb_qt_face_release);

return NULL;

never executed: fe->face_ = QFontEngine::Holder(_hb_qt_face_create(fe), _hb_qt_face_release);

fe->face_destroy_func =), _hb_qt_face_release;

never executed: fe->face_ = QFontEngine::Holder(_hb_qt_face_create(fe), _hb_qt_face_release);

}

never executed: fe->face_ = QFontEngine::Holder(_hb_qt_face_create(fe), _hb_qt_face_release);

);

never executed: fe->face_ = QFontEngine::Holder(_hb_qt_face_create(fe), _hb_qt_face_release);

683 -

684

return static_cast<hb_face_t *>(fe->face_);.get());

never executed: return static_cast<hb_face_t *>(fe->face_.get());

685 } -

686 -

687 -

688 static inline hb_font_t * -

689 _hb_qt_font_create(QFontEngine *fe) -

690 { -

691 hb_face_t *face = hb_qt_face_get_for_engine(fe); -

692 if (Q_UNLIKELY(!face)) -

693 return NULL; -

694 -

695 hb_font_t *font = hb_font_create(face); -

696 -

697 if (Q_UNLIKELY(hb_font_is_immutable(font))) { -

698 hb_font_destroy(font); -

699 return NULL; -

700 } -

701 -

702 const int y_ppem = fe->fontDef.pixelSize; -

703 const int x_ppem = (fe->fontDef.pixelSize * fe->fontDef.stretch) / 100; -

704 -

705 hb_font_set_funcs(font, hb_qt_get_font_funcs(), (void *)fe, NULL); -

706 #ifdef Q_OS_MAC -

707 hb_font_set_scale(font, QFixed(x_ppem).value(), QFixed(y_ppem).value()); -

708 #else -

709 hb_font_set_scale(font, QFixed(x_ppem).value(), -QFixed(y_ppem).value()); -

710 #endif -

711 hb_font_set_ppem(font, x_ppem, y_ppem); -

712 -

713 return font; -

714 } -

715 -

716 static void -

717 _hb_qt_font_release(void *user_data) -

718 { -

719 if (Q_LIKELY(user_data)) -

720 hb_font_destroy(static_cast<hb_font_t *>(user_data)); -

721 } -

722 -

723 hb_font_t *hb_qt_font_get_for_engine(QFontEngine *fe) -

724 { -

725 Q_ASSERT(fe && fe->type() != QFontEngine::Multi); -

726 -

727

if (Q_UNLIKELY(!fe->font_))

__builtin_expe...font_), false)	Description
TRUE	never evaluated
FALSE	never evaluated

728

{fe->font_ = _hb_qt_font_createQFontEngine::Holder(fe);