qharfbuzzng.cpp

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1 /**************************************************************************** -

2 ** -

5 ** Contact: http://www.qt.io/licensing/ -

6 ** -

7 ** This file is part of the QtGui module of the Qt Toolkit. -

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9 ** $QT_BEGIN_LICENSE:LGPL21$ -

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19 ** Alternatively, this file may be used under the terms of the GNU Lesser -

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21 ** Software Foundation and appearing in the file LICENSE.LGPLv21 and -

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27 ** As a special exception, The Qt Company gives you certain additional -

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31 ** $QT_END_LICENSE$ -

32 ** -

33 ****************************************************************************/ -

34 -

35 #include "qharfbuzzng_p.h" -

36 -

37 #include <qstring.h> -

38 #include <qvector.h> -

39 -

40 #include <private/qstringiterator_p.h> -

41 -

42 #include "qfontengine_p.h" -

43 -

44 QT_BEGIN_NAMESPACE -

45 -

46 // Unicode routines -

47 -

48 static const hb_script_t _qtscript_to_hbscript[] = { -

49 HB_SCRIPT_UNKNOWN, -

50 HB_SCRIPT_INHERITED, -

51 HB_SCRIPT_COMMON, -

52 -

53 HB_SCRIPT_LATIN, -

54 HB_SCRIPT_GREEK, -

55 HB_SCRIPT_CYRILLIC, -

56 HB_SCRIPT_ARMENIAN, -

57 HB_SCRIPT_HEBREW, -

58 HB_SCRIPT_ARABIC, -

59 HB_SCRIPT_SYRIAC, -

60 HB_SCRIPT_THAANA, -

61 HB_SCRIPT_DEVANAGARI, -

62 HB_SCRIPT_BENGALI, -

63 HB_SCRIPT_GURMUKHI, -

64 HB_SCRIPT_GUJARATI, -

65 HB_SCRIPT_ORIYA, -

66 HB_SCRIPT_TAMIL, -

67 HB_SCRIPT_TELUGU, -

68 HB_SCRIPT_KANNADA, -

69 HB_SCRIPT_MALAYALAM, -

70 HB_SCRIPT_SINHALA, -

71 HB_SCRIPT_THAI, -

72 HB_SCRIPT_LAO, -

73 HB_SCRIPT_TIBETAN, -

74 HB_SCRIPT_MYANMAR, -

75 HB_SCRIPT_GEORGIAN, -

76 HB_SCRIPT_HANGUL, -

77 HB_SCRIPT_ETHIOPIC, -

78 HB_SCRIPT_CHEROKEE, -

79 HB_SCRIPT_CANADIAN_ABORIGINAL, -

80 HB_SCRIPT_OGHAM, -

81 HB_SCRIPT_RUNIC, -

82 HB_SCRIPT_KHMER, -

83 HB_SCRIPT_MONGOLIAN, -

84 HB_SCRIPT_HIRAGANA, -

85 HB_SCRIPT_KATAKANA, -

86 HB_SCRIPT_BOPOMOFO, -

87 HB_SCRIPT_HAN, -

88 HB_SCRIPT_YI, -

89 HB_SCRIPT_OLD_ITALIC, -

90 HB_SCRIPT_GOTHIC, -

91 HB_SCRIPT_DESERET, -

92 HB_SCRIPT_TAGALOG, -

93 HB_SCRIPT_HANUNOO, -

94 HB_SCRIPT_BUHID, -

95 HB_SCRIPT_TAGBANWA, -

96 HB_SCRIPT_COPTIC, -

97 -

98 // Unicode 4.0 additions -

99 HB_SCRIPT_LIMBU, -

100 HB_SCRIPT_TAI_LE, -

101 HB_SCRIPT_LINEAR_B, -

102 HB_SCRIPT_UGARITIC, -

103 HB_SCRIPT_SHAVIAN, -

104 HB_SCRIPT_OSMANYA, -

105 HB_SCRIPT_CYPRIOT, -

106 HB_SCRIPT_BRAILLE, -

107 -

108 // Unicode 4.1 additions -

109 HB_SCRIPT_BUGINESE, -

110 HB_SCRIPT_NEW_TAI_LUE, -

111 HB_SCRIPT_GLAGOLITIC, -

112 HB_SCRIPT_TIFINAGH, -

113 HB_SCRIPT_SYLOTI_NAGRI, -

114 HB_SCRIPT_OLD_PERSIAN, -

115 HB_SCRIPT_KHAROSHTHI, -

116 -

117 // Unicode 5.0 additions -

118 HB_SCRIPT_BALINESE, -

119 HB_SCRIPT_CUNEIFORM, -

120 HB_SCRIPT_PHOENICIAN, -

121 HB_SCRIPT_PHAGS_PA, -

122 HB_SCRIPT_NKO, -

123 -

124 // Unicode 5.1 additions -

125 HB_SCRIPT_SUNDANESE, -

126 HB_SCRIPT_LEPCHA, -

127 HB_SCRIPT_OL_CHIKI, -

128 HB_SCRIPT_VAI, -

129 HB_SCRIPT_SAURASHTRA, -

130 HB_SCRIPT_KAYAH_LI, -

131 HB_SCRIPT_REJANG, -

132 HB_SCRIPT_LYCIAN, -

133 HB_SCRIPT_CARIAN, -

134 HB_SCRIPT_LYDIAN, -

135 HB_SCRIPT_CHAM, -

136 -

137 // Unicode 5.2 additions -

138 HB_SCRIPT_TAI_THAM, -

139 HB_SCRIPT_TAI_VIET, -

140 HB_SCRIPT_AVESTAN, -

141 HB_SCRIPT_EGYPTIAN_HIEROGLYPHS, -

142 HB_SCRIPT_SAMARITAN, -

143 HB_SCRIPT_LISU, -

144 HB_SCRIPT_BAMUM, -

145 HB_SCRIPT_JAVANESE, -

146 HB_SCRIPT_MEETEI_MAYEK, -

147 HB_SCRIPT_IMPERIAL_ARAMAIC, -

148 HB_SCRIPT_OLD_SOUTH_ARABIAN, -

149 HB_SCRIPT_INSCRIPTIONAL_PARTHIAN, -

150 HB_SCRIPT_INSCRIPTIONAL_PAHLAVI, -

151 HB_SCRIPT_OLD_TURKIC, -

152 HB_SCRIPT_KAITHI, -

153 -

154 // Unicode 6.0 additions -

155 HB_SCRIPT_BATAK, -

156 HB_SCRIPT_BRAHMI, -

157 HB_SCRIPT_MANDAIC, -

158 -

159 // Unicode 6.1 additions -

160 HB_SCRIPT_CHAKMA, -

161 HB_SCRIPT_MEROITIC_CURSIVE, -

162 HB_SCRIPT_MEROITIC_HIEROGLYPHS, -

163 HB_SCRIPT_MIAO, -

164 HB_SCRIPT_SHARADA, -

165 HB_SCRIPT_SORA_SOMPENG, -

166 HB_SCRIPT_TAKRI, -

167 -

168 // Unicode 7.0 additions -

169 HB_SCRIPT_CAUCASIAN_ALBANIAN, -

170 HB_SCRIPT_BASSA_VAH, -

171 HB_SCRIPT_DUPLOYAN, -

172 HB_SCRIPT_ELBASAN, -

173 HB_SCRIPT_GRANTHA, -

174 HB_SCRIPT_PAHAWH_HMONG, -

175 HB_SCRIPT_KHOJKI, -

176 HB_SCRIPT_LINEAR_A, -

177 HB_SCRIPT_MAHAJANI, -

178 HB_SCRIPT_MANICHAEAN, -

179 HB_SCRIPT_MENDE_KIKAKUI, -

180 HB_SCRIPT_MODI, -

181 HB_SCRIPT_MRO, -

182 HB_SCRIPT_OLD_NORTH_ARABIAN, -

183 HB_SCRIPT_NABATAEAN, -

184 HB_SCRIPT_PALMYRENE, -

185 HB_SCRIPT_PAU_CIN_HAU, -

186 HB_SCRIPT_OLD_PERMIC, -

187 HB_SCRIPT_PSALTER_PAHLAVI, -

188 HB_SCRIPT_SIDDHAM, -

189 HB_SCRIPT_KHUDAWADI, -

190 HB_SCRIPT_TIRHUTA, -

191 HB_SCRIPT_WARANG_CITI, -

192 -

193 // Unicode 8.0 additions -

194 HB_SCRIPT_AHOM, -

195 HB_SCRIPT_ANATOLIAN_HIEROGLYPHS, -

196 HB_SCRIPT_HATRAN, -

197 HB_SCRIPT_MULTANI, -

198 HB_SCRIPT_OLD_HUNGARIAN, -

199 HB_SCRIPT_SIGNWRITING -

200 }; -

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

202 -

203 hb_script_t hb_qt_script_to_script(QChar::Script script) -

204 { -

205

return _qtscript_to_hbscript[script];

never executed: return _qtscript_to_hbscript[script];

206 } -

207 -

208 QChar::Script hb_qt_script_from_script(hb_script_t script) -

209 { -

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

211

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

i > QChar::Script_Unknown	Description
TRUE	never evaluated
FALSE	never evaluated

_qtscript_to_h...t[i] != script	Description
TRUE	never evaluated
FALSE	never evaluated

212

--i;

never executed: --i;

213

return QChar::Script(i);

never executed: return QChar::Script(i);

214 } -

215 -

216 -

217 static hb_unicode_combining_class_t -

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

219 hb_codepoint_t unicode, -

220 void * /*user_data*/) -

221 { -

222

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

never executed: return hb_unicode_combining_class_t(QChar::combiningClass(unicode));

223 } -

224 -

225 static unsigned int -

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

227 hb_codepoint_t /*unicode*/, -

228 void * /*user_data*/) -

229 { -

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

231

return 1;

never executed: return 1;

232 } -

233 -

234 static const hb_unicode_general_category_t _qtcategory_to_hbcategory[] = { -

235 HB_UNICODE_GENERAL_CATEGORY_NON_SPACING_MARK, // Mn -

236 HB_UNICODE_GENERAL_CATEGORY_SPACING_MARK, // Mc -

237 HB_UNICODE_GENERAL_CATEGORY_ENCLOSING_MARK, // Me -

238 -

239 HB_UNICODE_GENERAL_CATEGORY_DECIMAL_NUMBER, // Nd -

240 HB_UNICODE_GENERAL_CATEGORY_LETTER_NUMBER, // Nl -

241 HB_UNICODE_GENERAL_CATEGORY_OTHER_NUMBER, // No -

242 -

243 HB_UNICODE_GENERAL_CATEGORY_SPACE_SEPARATOR, // Zs -

244 HB_UNICODE_GENERAL_CATEGORY_LINE_SEPARATOR, // Zl -

245 HB_UNICODE_GENERAL_CATEGORY_PARAGRAPH_SEPARATOR, // Zp -

246 -

247 HB_UNICODE_GENERAL_CATEGORY_CONTROL, // Cc -

248 HB_UNICODE_GENERAL_CATEGORY_FORMAT, // Cf -

249 HB_UNICODE_GENERAL_CATEGORY_SURROGATE, // Cs -

250 HB_UNICODE_GENERAL_CATEGORY_PRIVATE_USE, // Co -

251 HB_UNICODE_GENERAL_CATEGORY_UNASSIGNED, // Cn -

252 -

253 HB_UNICODE_GENERAL_CATEGORY_UPPERCASE_LETTER, // Lu -

254 HB_UNICODE_GENERAL_CATEGORY_LOWERCASE_LETTER, // Ll -

255 HB_UNICODE_GENERAL_CATEGORY_TITLECASE_LETTER, // Lt -

256 HB_UNICODE_GENERAL_CATEGORY_MODIFIER_LETTER, // Lm -

257 HB_UNICODE_GENERAL_CATEGORY_OTHER_LETTER, // Lo -

258 -

259 HB_UNICODE_GENERAL_CATEGORY_CONNECT_PUNCTUATION, // Pc -

260 HB_UNICODE_GENERAL_CATEGORY_DASH_PUNCTUATION, // Pd -

261 HB_UNICODE_GENERAL_CATEGORY_OPEN_PUNCTUATION, // Ps -

262 HB_UNICODE_GENERAL_CATEGORY_CLOSE_PUNCTUATION, // Pe -

263 HB_UNICODE_GENERAL_CATEGORY_INITIAL_PUNCTUATION, // Pi -

264 HB_UNICODE_GENERAL_CATEGORY_FINAL_PUNCTUATION, // Pf -

265 HB_UNICODE_GENERAL_CATEGORY_OTHER_PUNCTUATION, // Po -

266 -

267 HB_UNICODE_GENERAL_CATEGORY_MATH_SYMBOL, // Sm -

268 HB_UNICODE_GENERAL_CATEGORY_CURRENCY_SYMBOL, // Sc -

269 HB_UNICODE_GENERAL_CATEGORY_MODIFIER_SYMBOL, // Sk -

270 HB_UNICODE_GENERAL_CATEGORY_OTHER_SYMBOL // So -

271 }; -

272 -

273 static hb_unicode_general_category_t -

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

275 hb_codepoint_t unicode, -

276 void * /*user_data*/) -

277 { -

278

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

never executed: return _qtcategory_to_hbcategory[QChar::category(unicode)];

279 } -

280 -

281 static hb_codepoint_t -

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

283 hb_codepoint_t unicode, -

284 void * /*user_data*/) -

285 { -

286

return QChar::mirroredChar(unicode);

never executed: return QChar::mirroredChar(unicode);

287 } -

288 -

289 static hb_script_t -

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

291 hb_codepoint_t unicode, -

292 void * /*user_data*/) -

293 { -

294

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

never executed: return _qtscript_to_hbscript[QChar::script(unicode)];

295 } -

296 -

297 static hb_bool_t -

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

299 hb_codepoint_t a, hb_codepoint_t b, -

300 hb_codepoint_t *ab, -

301 void * /*user_data*/) -

302 { -

303 // ### optimize -

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

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

306 -

307 QStringIterator it(normalized); -

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

309 *ab = it.next(); -

310 -

311

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

never executed: return !it.hasNext();

312 } -

313 -

314 static hb_bool_t -

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

316 hb_codepoint_t ab, -

317 hb_codepoint_t *a, hb_codepoint_t *b, -

318 void * /*user_data*/) -

319 { -

320 // ### optimize -

321

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

QChar::decompo...har::Canonical	Description
TRUE	never evaluated
FALSE	never evaluated

322

return false;

never executed: return false;

323 -

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

325

if (normalized.isEmpty())

normalized.isEmpty()	Description
TRUE	never evaluated
FALSE	never evaluated

326

return false;

never executed: return false;

327 -

328 QStringIterator it(normalized); -

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

330 *a = it.next(); -

331 -

332

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

!it.hasNext()	Description
TRUE	never evaluated
FALSE	never evaluated

333 *b = 0; -

334

return *a != ab;

never executed: return *a != ab;

335 } -

336 -

337 // size>1 -

338 *b = it.next(); -

339

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

!it.hasNext()	Description
TRUE	never evaluated
FALSE	never evaluated

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

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

342 // the second part :-( -

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

344 QStringIterator jt(recomposed); -

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

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

347

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

c != *a	Description
TRUE	never evaluated
FALSE	never evaluated

c != ab	Description
TRUE	never evaluated
FALSE	never evaluated

348 *a = c; -

349 *b = 0; -

350

}

never executed: end of block

351

return true;

never executed: return true;

352 } -

353 -

354 // size>2 -

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

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

357 do { -

358 *b = it.next(); -

359

} while (it.hasNext());

never executed: end of block

it.hasNext()	Description
TRUE	never evaluated
FALSE	never evaluated

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

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

362 QStringIterator jt(recomposed); -

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

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

365 *a = jt.next(); -

366

return true;

never executed: return true;

367 } -

368 -

369 static unsigned int -

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

371 hb_codepoint_t u, -

372 hb_codepoint_t *decomposed, -

373 void * /*user_data*/) -

374 { -

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

376 -

377 uint outlen = 0; -

378 QStringIterator it(normalized); -

379

while (it.hasNext()) {

it.hasNext()	Description
TRUE	never evaluated
FALSE	never evaluated

380 Q_ASSERT(outlen < HB_UNICODE_MAX_DECOMPOSITION_LEN); -

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

382

}

never executed: end of block

383 -

384

return outlen;

never executed: return outlen;

385 } -

386 -

387 -

388 struct _hb_unicode_funcs_t { -

389 _hb_unicode_funcs_t() -

390 { -

391 funcs = hb_unicode_funcs_create(NULL); -

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

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

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

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

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

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

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

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

400

}

never executed: end of block

401 ~_hb_unicode_funcs_t() -

402 { -

403 hb_unicode_funcs_destroy(funcs); -

404

}

never executed: end of block

405 -

406 hb_unicode_funcs_t *funcs; -

407 }; -

408 -

409

Q_GLOBAL_STATIC(_hb_unicode_funcs_t, qt_ufuncs)

never executed: end of block

never executed: guard.store(QtGlobalStatic::Destroyed);

never executed: return &holder.value;

guard.load() =...c::Initialized	Description
TRUE	never evaluated
FALSE	never evaluated

410 -

411 hb_unicode_funcs_t *hb_qt_get_unicode_funcs() -

412 { -

413

return qt_ufuncs()->funcs;

never executed: return qt_ufuncs()->funcs;

414 } -

415 -

416 -

417 // Font routines -

418 -

419 static hb_bool_t -

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

421 hb_codepoint_t unicode, hb_codepoint_t /*variation_selector*/, -

422 hb_codepoint_t *glyph, -

423 void * /*user_data*/) -

424 { -

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

426 Q_ASSERT(fe); -

427 -

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

429 -

430

return true;

never executed: return true;

431 } -

432 -

433 static hb_position_t -

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

435 hb_codepoint_t glyph, -

436 void * /*user_data*/) -

437 { -

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

439 Q_ASSERT(fe); -

440 -

441 QFixed advance; -

442 -

443 QGlyphLayout g; -

444 g.numGlyphs = 1; -

445 g.glyphs = &glyph; -

446 g.advances = &advance; -

447 -

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

449 -

450

return advance.value();

never executed: return advance.value();

451 } -

452 -

453 static hb_position_t -

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

455 hb_codepoint_t /*glyph*/, -

456 void * /*user_data*/) -

457 { -

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

459

return 0;

never executed: return 0;

460 } -

461 -

462 static hb_bool_t -

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

464 hb_codepoint_t /*glyph*/, -

465 hb_position_t * /*x*/, hb_position_t * /*y*/, -

466 void * /*user_data*/) -

467 { -

468

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

never executed: return true;

469 } -

470 -

471 static hb_bool_t -

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

473 hb_codepoint_t /*glyph*/, -

474 hb_position_t * /*x*/, hb_position_t * /*y*/, -

475 void * /*user_data*/) -

476 { -

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

478

return false;

never executed: return false;

479 } -

480 -

481 static hb_position_t -

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

483 hb_codepoint_t first_glyph, hb_codepoint_t second_glyph, -

484 void * /*user_data*/) -

485 { -

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

487 Q_ASSERT(fe); -

488 -

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

490 QFixed advance; -

491 -

492 QGlyphLayout g; -

493 g.numGlyphs = 2; -

494 g.glyphs = glyphs; -

495 g.advances = &advance; -

496 -

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

498 -

499

return advance.value();

never executed: return advance.value();

500 } -

501 -

502 static hb_position_t -

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

504 hb_codepoint_t /*first_glyph*/, hb_codepoint_t /*second_glyph*/, -

505 void * /*user_data*/) -

506 { -

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

508

return 0;

never executed: return 0;

509 } -

510 -

511 static hb_bool_t -

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

513 hb_codepoint_t glyph, -

514 hb_glyph_extents_t *extents, -

515 void * /*user_data*/) -

516 { -

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

518 Q_ASSERT(fe); -

519 -

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

521 -

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

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

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

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

526 -

527

return true;

never executed: return true;

528 } -

529 -

530 static hb_bool_t -

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

532 hb_codepoint_t glyph, -

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

534 void * /*user_data*/) -

535 { -

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

537 Q_ASSERT(fe); -

538 -

539 QFixed xpos, ypos; -

540 quint32 numPoints = 1; -

541

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

__builtin_expe...) == 0), true)	Description
TRUE	never evaluated
FALSE	never evaluated

542 *x = xpos.value(); -

543 *y = ypos.value(); -

544

return true;

never executed: return true;

545 } -

546 -

547 *x = *y = 0; -

548

return false;

never executed: return false;

549 } -

550 -

551 static hb_bool_t -

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

553 hb_codepoint_t /*glyph*/, -

554 char *name, unsigned int size, -

555 void * /*user_data*/) -

556 { -

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

558

if (size)

size	Description
TRUE	never evaluated
FALSE	never evaluated

559

*name = '\0';

never executed: *name = '\0';

560

return false;

never executed: return false;

561 } -

562 -

563 static hb_bool_t -

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

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

566 hb_codepoint_t *glyph, -

567 void * /*user_data*/) -

568 { -

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

570 *glyph = 0; -

571

return false;

never executed: return false;

572 } -

573 -

574 -

575 static hb_user_data_key_t _useDesignMetricsKey; -

576 -

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

578 { -

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

580

}

never executed: end of block

581 -

582 uint hb_qt_font_get_use_design_metrics(hb_font_t *font) -

583 { -

584

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

never executed: return quintptr(hb_font_get_user_data(font, &_useDesignMetricsKey));

585 } -

586 -

587 -

588 struct _hb_qt_font_funcs_t { -

589 _hb_qt_font_funcs_t() -

590 { -

591 funcs = hb_font_funcs_create(); -

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

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

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

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

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

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

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

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

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

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

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

603

}

never executed: end of block

604 ~_hb_qt_font_funcs_t() -

605 { -

606 hb_font_funcs_destroy(funcs); -

607

}

never executed: end of block

608 -

609 hb_font_funcs_t *funcs; -

610 }; -

611 -

612

Q_GLOBAL_STATIC(_hb_qt_font_funcs_t, qt_ffuncs)

never executed: end of block

never executed: guard.store(QtGlobalStatic::Destroyed);

never executed: return &holder.value;

guard.load() =...c::Initialized	Description
TRUE	never evaluated
FALSE	never evaluated

613 -

614 hb_font_funcs_t *hb_qt_get_font_funcs() -

615 { -

616

return qt_ffuncs()->funcs;

never executed: return qt_ffuncs()->funcs;

617 } -

618 -

619 -

620 static hb_blob_t * -

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

622 { -

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

624 Q_ASSERT(data); -

625 -

626 qt_get_font_table_func_t get_font_table = data->get_font_table; -

627 Q_ASSERT(get_font_table); -

628 -

629 uint length = 0; -

630

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

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

631

return hb_blob_get_empty();

never executed: return hb_blob_get_empty();

632 -

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

634

Q_CHECK_PTR(buffer);

never executed: qt_check_pointer(__FILE__,634);

!(buffer)	Description
TRUE	never evaluated
FALSE	never evaluated

635 -

636

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

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

637

length = 0;

never executed: length = 0;

638 -

639

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

never executed: return hb_blob_create(const_cast<const char *>(buffer), length, HB_MEMORY_MODE_READONLY, buffer, free);

640

HB_MEMORY_MODE_READONLY,

never executed: return hb_blob_create(const_cast<const char *>(buffer), length, HB_MEMORY_MODE_READONLY, buffer, free);

641

buffer, free);

never executed: return hb_blob_create(const_cast<const char *>(buffer), length, HB_MEMORY_MODE_READONLY, buffer, free);

642 } -

643 -

644 static inline hb_face_t * -

645 _hb_qt_face_create(QFontEngine *fe) -

646 { -

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

648

Q_CHECK_PTR(data);

never executed: qt_check_pointer(__FILE__,648);

!(data)	Description
TRUE	never evaluated
FALSE	never evaluated

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

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

651 -

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

653

if (Q_UNLIKELY(hb_face_is_immutable(face))) {

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

654 hb_face_destroy(face); -

655

return NULL;

never executed: return __null;

656 } -

657 -

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

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

660 -

661

return face;

never executed: return face;

662 } -

663 -

664 static void -

665 _hb_qt_face_release(void *user_data) -

666 { -

667

if (Q_LIKELY(user_data))

__builtin_expe...r_data), true)	Description
TRUE	never evaluated
FALSE	never evaluated

668

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

never executed: hb_face_destroy(static_cast<hb_face_t *>(user_data));

669

}

never executed: end of block

670 -

671 hb_face_t *hb_qt_face_get_for_engine(QFontEngine *fe) -

672 { -

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

674 -

675

if (Q_UNLIKELY(!fe->face_)) {

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

676 fe->face_ = _hb_qt_face_create(fe); -

677

if (Q_UNLIKELY(!fe->face_))

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

678

return NULL;

never executed: return __null;

679 fe->face_destroy_func = _hb_qt_face_release; -

680

}

never executed: end of block

681 -

682

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

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

683 } -

684 -

685 -

686 static inline hb_font_t * -

687 _hb_qt_font_create(QFontEngine *fe) -

688 { -

689 hb_face_t *face = hb_qt_face_get_for_engine(fe); -

690

if (Q_UNLIKELY(!face))

__builtin_expe...!face), false)	Description
TRUE	never evaluated
FALSE	never evaluated

691

return NULL;

never executed: return __null;

692 -

693 hb_font_t *font = hb_font_create(face); -

694 -

695

if (Q_UNLIKELY(hb_font_is_immutable(font))) {

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

696 hb_font_destroy(font); -

697

return NULL;

never executed: return __null;

698 } -

699 -

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

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

702 -

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

704 #ifdef Q_OS_MAC -

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

706 #else -

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

708 #endif -

709 hb_font_set_ppem(font, x_ppem, y_ppem); -

710 -

711

return font;

never executed: return font;

712 } -

713 -

714 static void -

715 _hb_qt_font_release(void *user_data) -

716 { -

717

if (Q_LIKELY(user_data))

__builtin_expe...r_data), true)	Description
TRUE	never evaluated
FALSE	never evaluated

718

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

never executed: hb_font_destroy(static_cast<hb_font_t *>(user_data));

719

}

never executed: end of block

720 -

721 hb_font_t *hb_qt_font_get_for_engine(QFontEngine *fe) -

722 { -

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

724 -

725

if (Q_UNLIKELY(!fe->font_)) {

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

726 fe->font_ = _hb_qt_font_create(fe); -

727

if (Q_UNLIKELY(!fe->font_))

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

728

return NULL;

never executed: return __null;

729 fe->font_destroy_func = _hb_qt_font_release; -

730

}

never executed: end of block

731 -

732

return static_cast<hb_font_t *>(fe->font_);

never executed: return static_cast<hb_font_t *>(fe->font_);

733 } -

734 -

735 QT_END_NAMESPACE -

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