1 Overview of changes leading to 1.2.6 2 Friday, April 8, 2016 3 ==================================== 4 5 - Blacklist GDEF table of another set of Times New Roman (Bold) Italic. 6 - DirectWrite backend improvements. Note: DirectWrite backend is 7 exclusively for our internal testing and should NOT be used in any 8 production system whatsoever. 9 10 11 Overview of changes leading to 1.2.5 12 Monday, April 4, 2016 13 ==================================== 14 15 - Fix GDEF mark-filtering-set, which was broken in 1.2.3. 16 17 18 Overview of changes leading to 1.2.4 19 Thursday, March 17, 2016 20 ==================================== 21 22 - Synthesize GDEF glyph class for any glyph that does not have one in GDEF. 23 I really hope we don't discover broken fonts that shape badly with this 24 change. 25 - Misc build and other minor fixes. 26 - API changes: 27 - Added HB_NDEBUG. It's fine for production systems to define this to 28 disable high-overhead debugging checks. However, I also reduced the 29 overhead of those checks, so it's a non-issue right now. You can 30 forget it. Just not defining anything at all is fine. 31 32 33 Overview of changes leading to 1.2.3 34 Thursday, February 25, 2016 35 ==================================== 36 37 - Blacklist GDEF table of certain versions of Times New Roman (Bold) Italic, 38 due to bug in glyph class of ASCII double-quote character. This should 39 address "regression" introduced in 1.2.0 when we switched mark zeroing 40 in most shapers from BY_UNICODE_LATE to BY_GDEF_LATE. 41 This fourth release in a week should finally stablize things... 42 43 - hb-ot-font's get_glyph() implementation saw some optimizations. Though, 44 might be really hard to measure in real-world situations. 45 46 - Also, two rather small API changes: 47 48 We now disable some time-consuming internal bookkeeping if built with NDEBUG 49 defined. This is a first time that we use NDEBUG to disable debug code. If 50 there exist production systems that do NOT want to enable NDEBUG, please let 51 me know and I'll add HB_NDEBUG. 52 53 Added get_nominal_glyph() and get_variation_glyph() instead of get_glyph() 54 55 New API: 56 - hb_font_get_nominal_glyph_func_t 57 - hb_font_get_variation_glyph_func_t 58 - hb_font_funcs_set_nominal_glyph_func() 59 - hb_font_funcs_set_variation_glyph_func() 60 - hb_font_get_nominal_glyph() 61 - hb_font_get_variation_glyph() 62 63 Deprecated API: 64 - hb_font_get_glyph_func_t 65 - hb_font_funcs_set_glyph_func() 66 67 Clients that implement their own font-funcs are encouraged to replace 68 their get_glyph() implementation with a get_nominal_glyph() and 69 get_variation_glyph() pair. The variation version can assume that 70 variation_selector argument is not zero. Old (deprecated) functions 71 will continue working indefinitely using internal gymnastics; it is 72 just more efficient to use the new functions. 73 74 75 Overview of changes leading to 1.2.2 76 Wednesday, February 24, 2016 77 ==================================== 78 79 - Fix regression with mark positioning with fonts that have 80 non-zero mark advances. This was introduced in 1.2.0 while 81 trying to make mark and cursive attachments to work together. 82 I have partially reverted that, so this version is much more 83 like what we had before. All clients who updated to 1.2.0 84 should update to this version. 85 86 87 Overview of changes leading to 1.2.1 88 Tuesday, February 23, 2016 89 ==================================== 90 91 - CoreText: Fix bug with wrong scale if font scale was changed later. 92 https://github.com/libass/libass/issues/212 93 - CoreText: Drastically speed up font initialization. 94 - CoreText: Fix tiny leak. 95 - Group ZWJ/ZWNJ with previous syllable under cluster-level=0. 96 https://github.com/behdad/harfbuzz/issues/217 97 - Add test/shaping/README.md about how to add tests to the suite. 98 99 100 Overview of changes leading to 1.2.0 101 Friday, February 19, 2016 102 ==================================== 103 104 - Fix various issues (hangs mostly) in case of memory allocation failure. 105 - Change mark zeroing types of most shapers from BY_UNICODE_LATE to 106 BY_GDEF_LATE. This seems to be what Uniscribe does. 107 - Change mark zeroing of USE shaper from NONE to BY_GDEF_EARLY. That's 108 what Windows does. 109 - Allow GPOS cursive connection on marks, and fix the interaction with 110 mark attachment. This work resulted in some changes to how mark 111 attachments work. See: 112 https://github.com/behdad/harfbuzz/issues/211 113 https://github.com/behdad/harfbuzz/commit/86c68c7a2c971efe8e35b1f1bd99401dc8b688d2 114 - Graphite2 shaper: improved negative advance handling (eg. Nastaliq). 115 - Add nmake-based build system for Windows. 116 - Minor speedup. 117 - Misc. improvements. 118 119 120 Overview of changes leading to 1.1.3 121 Monday, January 11, 2016 122 ==================================== 123 124 - Ported Indic shaper to Unicode 8.0 data. 125 - Universal Shaping Engine fixes. 126 - Speed up CoreText shaper when font fallback happens in CoreText. 127 - Documentation improvements, thanks to Khaled Hosny. 128 - Very rough directwrite shaper for testing, thanks to Ebrahim Byagowi. 129 - Misc bug fixes. 130 - New API: 131 132 * Font extents: 133 hb_font_extents_t 134 hb_font_get_font_extents_func_t 135 hb_font_get_font_h_extents_func_t 136 hb_font_get_font_v_extents_func_t 137 hb_font_funcs_set_font_h_extents_func 138 hb_font_funcs_set_font_v_extents_func 139 hb_font_get_h_extents 140 hb_font_get_v_extents 141 hb_font_get_extents_for_direction 142 143 * Buffer message (aka debug): 144 hb_buffer_message_func_t 145 hb_buffer_set_message_func() 146 Actual message protocol to be fleshed out later. 147 148 149 Overview of changes leading to 1.1.2 150 Wednesday, November 26, 2015 151 ==================================== 152 153 - Fix badly-broken fallback shaper that affected terminology. 154 https://github.com/behdad/harfbuzz/issues/187 155 - Fix y_scaling in Graphite shaper. 156 - API changes: 157 * An unset glyph_h_origin() function in font-funcs now (sensibly) 158 implies horizontal origin at 0,0. Ie, the nil callback returns 159 true instead of false. As such, implementations that have a 160 glyph_h_origin() that simply returns true, can remove that function 161 with HarfBuzz >= 1.1.2. This results in a tiny speedup. 162 163 164 Overview of changes leading to 1.1.1 165 Wednesday, November 24, 2015 166 ==================================== 167 168 - Build fixes, specially for hb-coretext. 169 170 171 Overview of changes leading to 1.1.0 172 Wednesday, November 18, 2015 173 ==================================== 174 175 - Implement 'stch' stretch feature for Syriac Abbreviation Mark. 176 https://github.com/behdad/harfbuzz/issues/141 177 - Disable use of decompose_compatibility() callback. 178 - Implement "shaping" of various Unicode space characters, even 179 if the font does not support them. 180 https://github.com/behdad/harfbuzz/issues/153 181 - If font does not support U+2011 NO-BREAK HYPHEN, fallback to 182 U+2010 HYPHEN. 183 - Changes resulting from libFuzzer continuous fuzzing: 184 * Reject font tables that need more than 8 edits, 185 * Bound buffer growth during shaping to 32x, 186 * Fix assertions and other issues at OOM / buffer max-growth. 187 - Misc fixes and optimizations. 188 - API changes: 189 * All fonts created with hb_font_create() now inherit from 190 (ie. have parent) hb_font_get_empty(). 191 192 193 Overview of changes leading to 1.0.6 194 Thursday, October 15, 2015 195 ==================================== 196 197 - Reduce max nesting level in OT lookups from 8 to 6. 198 Should not affect any real font as far as I know. 199 - Fix memory access issue in ot-font. 200 - Revert default load-flags of fonts created using hb_ft_font_create() 201 back to FT_LOAD_DEFAULT|FT_LOAD_NO_HINTING. This was changed in 202 last release (1.0.5), but caused major issues, so revert. 203 https://github.com/behdad/harfbuzz/issues/143 204 205 206 Overview of changes leading to 1.0.5 207 Tuesday, October 13, 2015 208 ==================================== 209 210 - Fix multiple memory access bugs discovered using libFuzzer. 211 https://github.com/behdad/harfbuzz/issues/139 212 Everyone should upgrade to this version as soon as possible. 213 We now have continuous fuzzing set up, to avoid issues like 214 these creeping in again. 215 - Misc fixes. 216 217 - New API: 218 * hb_font_set_parent(). 219 * hb_ft_font_[sg]et_load_flags() 220 The default flags for fonts created using hb_ft_font_create() 221 has changed to default to FT_LOAD_DEFAULT now. Previously it 222 was defaulting to FT_LOAD_DFEAULT|FT_LOAD_NO_HINTING. 223 224 - API changes: 225 * Fonts now default to units-per-EM as their scale, instead of 0. 226 * hb_font_create_sub_font() does NOT make parent font immutable 227 anymore. hb_font_make_immutable() does. 228 229 230 Overview of changes leading to 1.0.4 231 Wednesday, September 30, 2015 232 ==================================== 233 234 - Fix minor out-of-bounds read error. 235 236 237 Overview of changes leading to 1.0.3 238 Tuesday, September 1, 2015 239 ==================================== 240 241 - Start of user documentation, from Simon Cozens! 242 - Implement glyph_extents() for TrueType fonts in hb-ot-font. 243 - Improve GPOS cursive attachments with conflicting lookups. 244 - More fixes for cluster-level = 1. 245 - Uniscribe positioning fix. 246 247 248 Overview of changes leading to 1.0.2 249 Wednesday, August 19, 2015 250 ==================================== 251 252 - Fix shaping with cluster-level > 0. 253 - Fix Uniscribe backend font-size scaling. 254 - Declare dependencies in harfbuzz.pc. 255 FreeType is not declared though, to avoid bugs in pkg-config 256 0.26 with recursive dependencies. 257 - Slightly improved debug infrastructure. More to come later. 258 - Misc build fixes. 259 260 261 Overview of changes leading to 1.0.1 262 Monday, July 27, 2015 263 ==================================== 264 265 - Fix out-of-bounds access in USE shaper. 266 267 268 Overview of changes leading to 1.0.0 269 Sunday, July 26, 2015 270 ==================================== 271 272 - Implement Universal Shaping Engine: 273 https://www.microsoft.com/typography/OpenTypeDev/USE/intro.htm 274 http://blogs.windows.com/bloggingwindows/2015/02/23/windows-shapes-the-worlds-languages/ 275 - Bump version to 1.0.0. The soname was NOT bumped. 276 277 278 Overview of changes leading to 0.9.42 279 Thursday, July 26, 2015 280 ===================================== 281 282 - New API to allow for retrieving finer-grained cluster 283 mappings if the client desires to handle them. Default 284 behavior is unchanged. 285 - Fix cluster merging when removing default-ignorables. 286 - Update to Unicode 8.0 287 - hb-graphite2 fixes. 288 - Misc fixes. 289 - Removed HB_NO_MERGE_CLUSTERS hack. 290 - New API: 291 hb_buffer_cluster_level_t enum 292 hb_buffer_get_cluster_level() 293 hb_buffer_set_cluster_level() 294 hb-shape / hb-view --cluster-level 295 296 297 Overview of changes leading to 0.9.41 298 Thursday, June 18, 2015 299 ===================================== 300 301 - Fix hb-coretext with trailing whitespace in right-to-left. 302 - New API: hb_buffer_reverse_range(). 303 - Allow implementing atomic ops in config.h. 304 - Fix hb_language_t in language bindings. 305 - Misc fixes. 306 307 308 Overview of changes leading to 0.9.40 309 Friday, March 20, 2015 310 ===================================== 311 312 - Another hb-coretext crasher fix. Ouch! 313 - Happy Norouz! 314 315 316 Overview of changes leading to 0.9.39 317 Wednesday, March 4, 2015 318 ===================================== 319 320 - Critical hb-coretext fixes. 321 - Optimizations and refactoring; no functional change 322 expected. 323 - Misc build fixes. 324 325 326 Overview of changes leading to 0.9.38 327 Friday, January 23, 2015 328 ===================================== 329 330 - Fix minor out-of-bounds access in Indic shaper. 331 - Change New Tai Lue shaping engine from South-East Asian to default, 332 reflecting change in Unicode encoding model. 333 - Add hb-shape --font-size. Can take up to two numbers for separate 334 x / y size. 335 - Fix CoreText and FreeType scale issues with negative scales. 336 - Reject blobs larger than 2GB. This might break some icu-le-hb clients 337 that need security fixes. See: 338 http://www.icu-project.org/trac/ticket/11450 339 - Avoid accessing font tables during face destruction, in casce rogue 340 clients released face data already. 341 - Fix up gobject-introspection a bit. Python bindings kinda working. 342 See README.python. 343 - Misc fixes. 344 - API additions: 345 hb_ft_face_create_referenced() 346 hb_ft_font_create_referenced() 347 348 349 Overview of changes leading to 0.9.37 350 Wednesday, December 17, 2014 351 ===================================== 352 353 - Fix out-of-bounds access in Context lookup format 3. 354 - Indic: Allow ZWJ/ZWNJ before syllable modifiers. 355 356 357 Overview of changes leading to 0.9.36 358 Thursday, November 20, 2014 359 ===================================== 360 361 - First time that three months went by without a release since 362 0.9.2 was released on August 10, 2012! 363 - Fix performance bug in hb_ot_collect_glyphs(): 364 https://bugzilla.mozilla.org/show_bug.cgi?id=1090869 365 - Add basic vertical-text support to hb-ot-font. 366 - Misc build fixes. 367 368 369 Overview of changes leading to 0.9.35 370 Saturday, August 13, 2014 371 ===================================== 372 373 - Fix major shape-plan caching bug when more than one shaper were 374 provided to hb_shape_full() (as exercised by XeTeX). 375 http://www.mail-archive.com/debian-bugs-dist@lists.debian.org/msg1246370.html 376 - Fix Arabic fallback shaping regression. This was broken in 0.9.32. 377 - Major hb-coretext fixes. That backend is complete now, including 378 respecing buffer direction and language, down to vertical writing. 379 - Build fixes for Windows CE. Should build fine now. 380 - Misc fixes: 381 Use atexit() only if it's safe to call from shared library 382 https://bugs.freedesktop.org/show_bug.cgi?id=82246 383 Mandaic had errors in its Unicode Joining_Type 384 https://bugs.freedesktop.org/show_bug.cgi?id=82306 385 - API changes: 386 387 * hb_buffer_clear_contents() does not reset buffer flags now. 388 389 After 763e5466c0a03a7c27020e1e2598e488612529a7, one doesn't 390 need to set flags for different pieces of text. The flags now 391 are something the client sets up once, depending on how it 392 actually uses the buffer. As such, don't clear it in 393 clear_contents(). 394 395 I don't expect any changes to be needed to any existing client. 396 397 398 Overview of changes leading to 0.9.34 399 Saturday, August 2, 2014 400 ===================================== 401 402 - hb_feature_from_string() now accepts CSS font-feature-settings format. 403 - As a result, hb-shape / hb-view --features also accept CSS-style strings. 404 Eg, "'liga' off" is accepted now. 405 - Add old-spec Myanmar shaper: 406 https://bugs.freedesktop.org/show_bug.cgi?id=81775 407 - Don't apply 'calt' in Hangul shaper. 408 - Fix mark advance zeroing for Hebrew shaper: 409 https://bugs.freedesktop.org/show_bug.cgi?id=76767 410 - Implement Windows-1256 custom Arabic shaping. Only built on Windows, 411 and requires help from get_glyph(). Used by Firefox. 412 https://bugzilla.mozilla.org/show_bug.cgi?id=1045139 413 - Disable 'liga' in vertical text. 414 - Build fixes. 415 - API changes: 416 417 * Make HB_BUFFER_FLAG_BOT/EOT easier to use. 418 419 Previously, we expected users to provide BOT/EOT flags when the 420 text *segment* was at paragraph boundaries. This meant that for 421 clients that provide full paragraph to HarfBuzz (eg. Pango), they 422 had code like this: 423 424 hb_buffer_set_flags (hb_buffer, 425 (item_offset == 0 ? HB_BUFFER_FLAG_BOT : 0) | 426 (item_offset + item_length == paragraph_length ? 427 HB_BUFFER_FLAG_EOT : 0)); 428 429 hb_buffer_add_utf8 (hb_buffer, 430 paragraph_text, paragraph_length, 431 item_offset, item_length); 432 433 After this change such clients can simply say: 434 435 hb_buffer_set_flags (hb_buffer, 436 HB_BUFFER_FLAG_BOT | HB_BUFFER_FLAG_EOT); 437 438 hb_buffer_add_utf8 (hb_buffer, 439 paragraph_text, paragraph_length, 440 item_offset, item_length); 441 442 Ie, HarfBuzz itself checks whether the segment is at the beginning/end 443 of the paragraph. Clients that only pass item-at-a-time to HarfBuzz 444 continue not setting any flags whatsoever. 445 446 Another way to put it is: if there's pre-context text in the buffer, 447 HarfBuzz ignores the BOT flag. If there's post-context, it ignores 448 EOT flag. 449 450 451 Overview of changes leading to 0.9.33 452 Tuesday, July 22, 2014 453 ===================================== 454 455 - Turn off ARabic 'cswh' feature that was accidentally turned on. 456 - Add HB_TAG_MAX_SIGNED. 457 - Make hb_face_make_immutable() really make face immutable! 458 - Windows build fixes. 459 460 461 Overview of changes leading to 0.9.32 462 Thursday, July 17, 2014 463 ===================================== 464 465 - Apply Arabic shaping features in spec order exactly. 466 - Another fix for Mongolian free variation selectors. 467 - For non-Arabic scripts in Arabic shaper apply 'rlig' and 'calt' 468 together. 469 - Minor adjustment to U+FFFD logic. 470 - Fix hb-coretext build. 471 472 473 Overview of changes leading to 0.9.31 474 Wednesday, July 16, 2014 475 ===================================== 476 477 - Only accept valid UTF-8/16/32; we missed many cases before. 478 - Better shaping of invalid UTF-8/16/32. Falls back to 479 U+FFFD REPLACEMENT CHARACTER now. 480 - With all changes in this release, the buffer will contain fully 481 valid Unicode after hb_buffer_add_utf8/16/32 no matter how 482 broken the input is. This can be overriden though. See below. 483 - Fix Mongolian Variation Selectors for fonts without GDEF. 484 - Fix minor invalid buffer access. 485 - Accept zh-Hant and zh-Hans language tags. hb_ot_tag_to_language() 486 now uses these instead of private tags. 487 - Build fixes. 488 - New API: 489 * hb_buffer_add_codepoints(). This does what hb_buffer_add_utf32() 490 used to do, ie. no validity check on the input at all. add_utf32 491 now replaces invalid Unicode codepoints with the replacement 492 character (see below). 493 * hb_buffer_set_replacement_codepoint() 494 * hb_buffer_get_replacement_codepoint() 495 Previously, in hb_buffer_add_utf8 and hb_buffer_add_utf16, when 496 we detected broken input, we replaced that with (hb_codepoint_t)-1. 497 This has changed to use U+FFFD now, but can be changed using these 498 new API. 499 500 501 Overview of changes leading to 0.9.30 502 Wednesday, July 9, 2014 503 ===================================== 504 505 - Update to Unicode 7.0.0: 506 * New scripts Manichaean and Psalter Pahlavi are shaped using 507 Arabic shaper. 508 * All the other new scripts to through the generic shaper for 509 now. 510 - Minor Indic improvements. 511 - Fix graphite2 backend cluster mapping [crasher!] 512 - API changes: 513 * New HB_SCRIPT_* values for Unicode 7.0 scripts. 514 * New function hb_ot_layout_language_get_required_feature(). 515 - Build fixes. 516 517 518 Overview of changes leading to 0.9.29 519 Thursday, May 29, 2014 520 ===================================== 521 522 - Implement cmap in hb-ot-font.h. No variation-selectors yet. 523 - Myanmar: Allow MedialYa+Asat. 524 - Various Indic fixes: 525 * Support most characters in Extended Devanagary and Vedic 526 Unicode blocks. 527 * Allow digits and a some punctuation as consonant placeholders. 528 - Build fixes. 529 530 531 Overview of changes leading to 0.9.28 532 Monday, April 28, 2014 533 ===================================== 534 535 - Unbreak old-spec Indic shaping. (bug 76705) 536 - Fix shaping of U+17DD and U+0FC6. 537 - Add HB_NO_MERGE_CLUSTERS build option. NOT to be enabled by default 538 for shipping libraries. It's an option for further experimentation 539 right now. When we are sure how to do it properly, we will add 540 public run-time API for the functionality. 541 - Build fixes. 542 543 544 Overview of changes leading to 0.9.27 545 Tuesday, March 18, 2014 546 ===================================== 547 548 - Don't use "register" storage class specifier 549 - Wrap definition of free_langs() with HAVE_ATEXIT 550 - Add coretext_aat shaper and hb_coretext_face_create() constructor 551 - If HAVE_ICU_BUILTIN is defined, use hb-icu Unicode callbacks 552 - Add Myanmar test case from OpenType Myanmar spec 553 - Only do fallback Hebrew composition if no GPOS 'mark' available 554 - Allow bootstrapping without gtk-doc 555 - Use AM_MISSING_PROG for ragel and git 556 - Typo in ucdn's Makefile.am 557 - Improve MemoryBarrier() implementation 558 559 560 Overview of changes leading to 0.9.26 561 Thursday, January 30, 2014 562 ===================================== 563 564 - Misc fixes. 565 - Fix application of 'rtlm' feature. 566 - Automatically apply frac/numr/dnom around U+2044 FRACTION SLASH. 567 - New header: hb-ot-shape.h 568 - Uniscribe: fix scratch-buffer accounting. 569 - Reorder Tai Tham SAKOT to after tone-marks. 570 - Add Hangul shaper. 571 - New files: 572 hb-ot-shape-complex-hangul.cc 573 hb-ot-shape-complex-hebrew.cc 574 hb-ot-shape-complex-tibetan.cc 575 - Disable 'cswh' feature in Arabic shaper. 576 - Coretext: better handle surrogate pairs. 577 - Add HB_TAG_MAX and _HB_SCRIPT_MAX_VALUE. 578 579 580 Overview of changes leading to 0.9.25 581 Wednesday, December 4, 2013 582 ===================================== 583 584 - Myanmar shaper improvements. 585 - Avoid font fallback in CoreText backend. 586 - Additional OpenType language tag mappiongs. 587 - More aggressive shape-plan caching. 588 - Build with / require automake 1.13. 589 - Build with libtool 2.4.2.418 alpha to support ppc64le. 590 591 592 Overview of changes leading to 0.9.24 593 Tuesday, November 13, 2013 594 ===================================== 595 596 - Misc compiler warning fixes with clang. 597 - No functional changes. 598 599 600 Overview of changes leading to 0.9.23 601 Monday, October 28, 2013 602 ===================================== 603 604 - "Udupi HarfBuzz Hackfest", Paris, October 14..18 2013. 605 - Fix (Chain)Context recursion with non-monotone lookup positions. 606 - Misc Indic bug fixes. 607 - New Javanese / Buginese shaping, similar to Windows 8.1. 608 609 610 Overview of changes leading to 0.9.22 611 Thursday, October 3, 2013 612 ===================================== 613 614 - Fix use-after-end-of-scope in hb_language_from_string(). 615 - Fix hiding of default_ignorables if font doesn't have space glyph. 616 - Protect against out-of-range lookup indices. 617 618 - API Changes: 619 620 * Added hb_ot_layout_table_get_lookup_count() 621 622 623 Overview of changes leading to 0.9.21 624 Monday, September 16, 2013 625 ===================================== 626 627 - Rename gobject-introspection library name from harfbuzz to HarfBuzz. 628 - Remove (long disabled) hb-old and hb-icu-le test shapers. 629 - Misc gtk-doc and gobject-introspection annotations. 630 - Misc fixes. 631 - API changes: 632 633 * Add HB_SET_VALUE_INVALID 634 635 Overview of changes leading to 0.9.20 636 Thursday, August 29, 2013 637 ===================================== 638 639 General: 640 - Misc substitute_closure() fixes. 641 - Build fixes. 642 643 Documentation: 644 - gtk-doc boilerplate integrated. Docs are built now, but 645 contain no contents. By next release hopefully we have 646 some content in. Enable using --enable-gtk-doc. 647 648 GObject and Introspection: 649 - Added harfbuzz-gobject library (hb-gobject.h) that has type 650 bindings for all HarfBuzz objects and enums. Enable using 651 --with-gobject. 652 - Added gobject-introspection boilerplate. Nothing useful 653 right now. Work in progress. Gets enabled automatically if 654 --with-gobject is used. Override with --disable-introspection. 655 656 OpenType shaper: 657 - Apply 'mark' in Myanmar shaper. 658 - Don't apply 'dlig' by default. 659 660 Uniscribe shaper: 661 - Support user features. 662 - Fix loading of fonts that are also installed on the system. 663 - Fix shaping of Arabic Presentation Forms. 664 - Fix build with wide chars. 665 666 CoreText shaper: 667 - Support user features. 668 669 Source changes: 670 - hb_face_t code moved to hb-face.h / hb-face.cc. 671 - Added hb-deprecated.h. 672 673 API changes: 674 - Added HB_DISABLE_DEPRECATED. 675 - Deprecated HB_SCRIPT_CANADIAN_ABORIGINAL; replaced by 676 HB_SCRIPT_CANADIAN_SYLLABICS. 677 - Deprecated HB_BUFFER_FLAGS_DEFAULT; replaced by 678 HB_BUFFER_FLAG_DEFAULT. 679 - Deprecated HB_BUFFER_SERIALIZE_FLAGS_DEFAULT; replaced by 680 HB_BUFFER_SERIALIZE_FLAG_DEFAULT. 681 682 683 Overview of changes leading to 0.9.19 684 Tuesday, July 16, 2013 685 ===================================== 686 687 - Build fixes. 688 - Better handling of multiple variation selectors in a row. 689 - Pass on variation selector to GSUB if not consumed by cmap. 690 - Fix undefined memory access. 691 - Add Javanese config to Indic shaper. 692 - Misc bug fixes. 693 694 Overview of changes leading to 0.9.18 695 Tuesday, May 28, 2013 696 ===================================== 697 698 New build system: 699 700 - All unneeded code is all disabled by default, 701 702 - Uniscribe and CoreText shapers can be enabled with their --with options, 703 704 - icu_le and old shapers cannot be enabled for now, 705 706 - glib, freetype, and cairo will be detected automatically. 707 They can be force on/off'ed with their --with options, 708 709 - icu and graphite2 are default off, can be enabled with their --with 710 options, 711 712 Moreover, ICU support is now build into a separate library: 713 libharfbuzz-icu.so, and a new harfbuzz-icu.pc is shipped for it. 714 Distros can enable ICU now without every application on earth 715 getting linked to via libharfbuzz.so. 716 717 For distros I recommend that they make sure they are building --with-glib 718 --with-freetype --with-cairo, --with-icu, and optionally --with-graphite2; 719 And package harfbuzz and harfbuzz-icu separately. 720 721 722 Overview of changes leading to 0.9.17 723 Monday, May 20, 2013 724 ===================================== 725 726 - Build fixes. 727 - Fix bug in hb_set_get_min(). 728 - Fix regression with Arabic mark positioning / width-zeroing. 729 730 Overview of changes leading to 0.9.16 731 Friday, April 19, 2013 732 ===================================== 733 734 - Major speedup in OpenType lookup processing. With the Amiri 735 Arabic font, this release is over 3x faster than previous 736 release. All scripts / languages should see this speedup. 737 738 - New --num-iterations option for hb-shape / hb-view; useful for 739 profiling. 740 741 Overview of changes leading to 0.9.15 742 Friday, April 05, 2013 743 ===================================== 744 745 - Build fixes. 746 - Fix crasher in graphite2 shaper. 747 - Fix Arabic mark width zeroing regression. 748 - Don't compose Hangul jamo into Unicode syllables. 749 750 751 Overview of changes leading to 0.9.14 752 Thursday, March 21, 2013 753 ===================================== 754 755 - Build fixes. 756 - Fix time-consuming sanitize with malicious fonts. 757 - Implement hb_buffer_deserialize_glyphs() for both json and text. 758 - Do not ignore Hangul filler characters. 759 - Indic fixes: 760 * Fix Malayalam pre-base reordering interaction with post-forms. 761 * Further adjust ZWJ handling. Should fix known regressions from 762 0.9.13. 763 764 765 Overview of changes leading to 0.9.13 766 Thursday, February 25, 2013 767 ===================================== 768 769 - Build fixes. 770 - Ngapi HarfBuzz Hackfest in London (February 2013): 771 * Fixed all known Indic bugs, 772 * New Win8-style Myanmar shaper, 773 * New South-East Asian shaper for Tai Tham, Cham, and New Tai Lue, 774 * Smartly ignore Default_Ignorable characters (joiners, etc) wheb 775 matching GSUB/GPOS lookups, 776 * Fix 'Phags-Pa U+A872 shaping, 777 * Fix partial disabling of default-on features, 778 * Allow disabling of TrueType kerning. 779 - Fix possible crasher with broken fonts with overlapping tables. 780 - Removed generated files from git again. So, one needs ragel to 781 bootstrap from the git tree. 782 783 API changes: 784 - hb_shape() and related APIs now abort if buffer direction is 785 HB_DIRECTION_INVALID. Previously, hb_shape() was calling 786 hb_buffer_guess_segment_properties() on the buffer before 787 shaping. The heuristics in that function are fragile. If the 788 user really wants the old behvaior, they can call that function 789 right before calling hb_shape() to get the old behavior. 790 - hb_blob_create_sub_blob() always creates sub-blob with 791 HB_MEMORY_MODE_READONLY. See comments for the reason. 792 793 794 Overview of changes leading to 0.9.12 795 Thursday, January 18, 2013 796 ===================================== 797 798 - Build fixes for Sun compiler. 799 - Minor bug fix. 800 801 Overview of changes leading to 0.9.11 802 Thursday, January 10, 2013 803 ===================================== 804 805 - Build fixes. 806 - Fix GPOS mark attachment with null Anchor offsets. 807 - [Indic] Fix old-spec reordering of viramas if sequence ends in one. 808 - Fix multi-threaded shaper data creation crash. 809 - Add atomic ops for Solaris. 810 811 API changes: 812 - Rename hb_buffer_clear() to hb_buffer_clear_contents(). 813 814 815 Overview of changes leading to 0.9.10 816 Thursday, January 3, 2013 817 ===================================== 818 819 - [Indic] Fixed rendering of Malayalam dot-reph 820 - Updated OT language tags. 821 - Updated graphite2 backend. 822 - Improved hb_ot_layout_get_size_params() logic. 823 - Improve hb-shape/hb-view help output. 824 - Fixed hb-set.h implementation to not crash. 825 - Fixed various issues with hb_ot_layout_collect_lookups(). 826 - Various build fixes. 827 828 New API: 829 830 hb_graphite2_face_get_gr_face() 831 hb_graphite2_font_get_gr_font() 832 hb_coretext_face_get_cg_font() 833 834 Modified API: 835 836 hb_ot_layout_get_size_params() 837 838 839 Overview of changes leading to 0.9.9 840 Wednesday, December 5, 2012 841 ==================================== 842 843 - Fix build on Windows. 844 - Minor improvements. 845 846 847 Overview of changes leading to 0.9.8 848 Tuesday, December 4, 2012 849 ==================================== 850 851 852 - Actually implement hb_shape_plan_get_shaper (). 853 - Make UCDB data tables const. 854 - Lots of internal refactoring in OTLayout tables. 855 - Flesh out hb_ot_layout_lookup_collect_glyphs(). 856 857 New API: 858 859 hb_ot_layout_collect_lookups() 860 hb_ot_layout_get_size_params() 861 862 863 Overview of changes leading to 0.9.7 864 Sunday, November 21, 2012 865 ==================================== 866 867 868 HarfBuzz "All-You-Can-Eat-Sushi" (aka Vancouver) Hackfest and follow-on fixes. 869 870 - Fix Arabic contextual joining using pre-context text. 871 - Fix Sinhala "split matra" mess. 872 - Fix Khmer shaping with broken fonts. 873 - Implement Thai "PUA" shaping for old fonts. 874 - Do NOT route Kharoshthi script through the Indic shaper. 875 - Disable fallback positioning for Indic and Thai shapers. 876 - Misc fixes. 877 878 879 hb-shape / hb-view changes: 880 881 - Add --text-before and --text-after 882 - Add --bot / --eot / --preserve-default-ignorables 883 - hb-shape --output-format=json 884 885 886 New API: 887 888 hb_buffer_clear() 889 890 hb_buffer_flags_t 891 892 HB_BUFFER_FLAGS_DEFAULT 893 HB_BUFFER_FLAG_BOT 894 HB_BUFFER_FLAG_EOT 895 HB_BUFFER_FLAG_PRESERVE_DEFAULT_IGNORABLES 896 897 hb_buffer_set_flags() 898 hb_buffer_get_flags() 899 900 HB_BUFFER_SERIALIZE_FLAGS 901 hb_buffer_serialize_glyphs() 902 hb_buffer_deserialize_glyphs() 903 hb_buffer_serialize_list_formats() 904 905 hb_set_add_range() 906 hb_set_del_range() 907 hb_set_get_population() 908 hb_set_next_range() 909 910 hb_face_[sg]et_glyph_count() 911 912 hb_segment_properties_t 913 HB_SEGMENT_PROPERTIES_DEFAULT 914 hb_segment_properties_equal() 915 hb_segment_properties_hash() 916 917 hb_buffer_set_segment_properties() 918 hb_buffer_get_segment_properties() 919 920 hb_ot_layout_glyph_class_t 921 hb_ot_layout_get_glyph_class() 922 hb_ot_layout_get_glyphs_in_class() 923 924 hb_shape_plan_t 925 hb_shape_plan_create() 926 hb_shape_plan_create_cached() 927 hb_shape_plan_get_empty() 928 hb_shape_plan_reference() 929 hb_shape_plan_destroy() 930 hb_shape_plan_set_user_data() 931 hb_shape_plan_get_user_data() 932 hb_shape_plan_execute() 933 hb_shape_plan_get_shaper() 934 935 hb_ot_shape_plan_collect_lookups() 936 937 938 API changes: 939 940 - Remove "mask" parameter from hb_buffer_add(). 941 - Rename hb_ot_layout_would_substitute_lookup() and hb_ot_layout_substitute_closure_lookup(). 942 - hb-set.h API const correction. 943 - Renamed hb_set_min/max() to hb_set_get_min/max(). 944 - Rename hb_ot_layout_feature_get_lookup_indexes() to hb_ot_layout_feature_get_lookups(). 945 - Rename hb_buffer_guess_properties() to hb_buffer_guess_segment_properties(). 946 947 948 949 Overview of changes leading to 0.9.6 950 Sunday, November 13, 2012 951 ==================================== 952 953 - Don't clear pre-context text if no new context is provided. 954 - Fix ReverseChainingSubstLookup, which was totally borked. 955 - Adjust output format of hb-shape a bit. 956 - Include config.h.in in-tree. Makes it easier for alternate build systems. 957 - Fix hb_buffer_set_length(buffer, 0) invalid memory allocation. 958 - Use ICU LayoutEngine's C API instead of C++. Avoids much headache. 959 - Drop glyphs for all of Unicode Default_Ignorable characters. 960 - Misc build fixes. 961 962 Arabic shaper: 963 - Enable 'dlig' and 'mset' features in Arabic shaper. 964 - Implement 'Phags-pa shaping, improve Mongolian. 965 966 Indic shaper: 967 - Decompose Sinhala split matras the way old HarfBuzz / Pango did. 968 - Initial support for Consonant Medials. 969 - Start adding new-style Myanmar shaping. 970 - Make reph and 'pref' logic introspect the font. 971 - Route Meetei-Mayek through the Indic shaper. 972 - Don't apply 'liga' in Indic shaper. 973 - Improve Malayalam pre-base reordering Ra interaction with Chillus. 974 975 976 977 Overview of changes leading to 0.9.5 978 Sunday, October 14, 2012 979 ==================================== 980 981 - Synthetic-GSUB Arabic fallback shaping. 982 983 - Misc Indic improvements. 984 985 - Add build system support for pthread. 986 987 - Imported UCDN for in-tree Unicode callbacks implementation. 988 989 - Context-aware Arabic joining. 990 991 - Misc other fixes. 992 993 - New API: 994 995 hb_feature_to/from-string() 996 hb_buffer_[sg]et_content_type() 997 998 999 1000 Overview of changes leading to 0.9.4 1001 Tuesday, Sep 03, 2012 1002 ==================================== 1003 1004 - Indic improvements with old-spec Malayalam. 1005 1006 - Better fallback glyph positioning, specially with Thai / Lao marks. 1007 1008 - Implement dotted-circle insertion. 1009 1010 - Better Arabic fallback shaping / ligation. 1011 1012 - Added ICU LayoutEngine backend for testing. Call it by the 'icu_le' name. 1013 1014 - Misc fixes. 1015 1016 1017 1018 Overview of changes leading to 0.9.3 1019 Friday, Aug 18, 2012 1020 ==================================== 1021 1022 - Fixed fallback mark positioning for left-to-right text. 1023 1024 - Improve mark positioning for the remaining combining classes. 1025 1026 - Unbreak Thai and fallback Arabic shaping. 1027 1028 - Port Arabic shaper to shape-plan caching. 1029 1030 - Use new ICU normalizer functions. 1031 1032 1033 1034 Overview of changes leading to 0.9.2 1035 Friday, Aug 10, 2012 1036 ==================================== 1037 1038 - Over a thousand commits! This is the first major release of HarfBuzz. 1039 1040 - HarfBuzz is feature-complete now! It should be in par, or better, than 1041 both Pango's shapers and old HarfBuzz / Qt shapers. 1042 1043 - New Indic shaper, supporting main Indic scripts, Sinhala, and Khmer. 1044 1045 - Improved Arabic shaper, with fallback Arabic shaping, supporting Arabic, 1046 Sinhala, N'ko, Mongolian, and Mandaic. 1047 1048 - New Thai / Lao shaper. 1049 1050 - Tibetan / Hangul support in the generic shaper. 1051 1052 - Synthetic GDEF support for fonts without a GDEF table. 1053 1054 - Fallback mark positioning for fonts without a GPOS table. 1055 1056 - Unicode normalization shaping heuristic during glyph mapping. 1057 1058 - New experimental Graphite2 backend. 1059 1060 - New Uniscribe backend (primarily for testing). 1061 1062 - New CoreText backend (primarily for testing). 1063 1064 - Major optimization and speedup. 1065 1066 - Test suites and testing infrastructure (work in progress). 1067 1068 - Greatly improved hb-view cmdline tool. 1069 1070 - hb-shape cmdline tool. 1071 1072 - Unicode 6.1 support. 1073 1074 Summary of API changes: 1075 1076 o Changed API: 1077 1078 - Users are expected to only include main header files now (ie. hb.h, 1079 hb-glib.h, hb-ft.h, ...) 1080 1081 - All struct tag names had their initial underscore removed. 1082 Ie. "struct _hb_buffer_t" is "struct hb_buffer_t" now. 1083 1084 - All set_user_data() functions now take a "replace" boolean parameter. 1085 1086 - hb_buffer_create() takes zero arguments now. 1087 Use hb_buffer_pre_allocate() to pre-allocate. 1088 1089 - hb_buffer_add_utf*() now accept -1 for length parameteres, 1090 meaning "nul-terminated". 1091 1092 - hb_direction_t enum values changed. 1093 1094 - All *_from_string() APIs now take a length parameter to allow for 1095 non-nul-terminated strings. A -1 length means "nul-terminated". 1096 1097 - Typedef for hb_language_t changed. 1098 1099 - hb_get_table_func_t renamed to hb_reference_table_func_t. 1100 1101 - hb_ot_layout_table_choose_script() 1102 1103 - Various renames in hb-unicode.h. 1104 1105 o New API: 1106 1107 - hb_buffer_guess_properties() 1108 Automatically called by hb_shape(). 1109 1110 - hb_buffer_normalize_glyphs() 1111 1112 - hb_tag_from_string() 1113 1114 - hb-coretext.h 1115 1116 - hb-uniscribe.h 1117 1118 - hb_face_reference_blob() 1119 - hb_face_[sg]et_index() 1120 - hb_face_set_upem() 1121 1122 - hb_font_get_glyph_name_func_t 1123 hb_font_get_glyph_from_name_func_t 1124 hb_font_funcs_set_glyph_name_func() 1125 hb_font_funcs_set_glyph_from_name_func() 1126 hb_font_get_glyph_name() 1127 hb_font_get_glyph_from_name() 1128 hb_font_glyph_to_string() 1129 hb_font_glyph_from_string() 1130 1131 - hb_font_set_funcs_data() 1132 1133 - hb_ft_font_set_funcs() 1134 - hb_ft_font_get_face() 1135 1136 - hb-gobject.h (work in progress) 1137 1138 - hb_ot_shape_glyphs_closure() 1139 hb_ot_layout_substitute_closure_lookup() 1140 1141 - hb-set.h 1142 1143 - hb_shape_full() 1144 1145 - hb_unicode_combining_class_t 1146 1147 - hb_unicode_compose_func_t 1148 hb_unicode_decompose_func_t 1149 hb_unicode_decompose_compatibility_func_t 1150 hb_unicode_funcs_set_compose_func() 1151 hb_unicode_funcs_set_decompose_func() 1152 hb_unicode_funcs_set_decompose_compatibility_func() 1153 hb_unicode_compose() 1154 hb_unicode_decompose() 1155 hb_unicode_decompose_compatibility() 1156 1157 o Removed API: 1158 1159 - hb_ft_get_font_funcs() 1160 1161 - hb_ot_layout_substitute_start() 1162 hb_ot_layout_substitute_lookup() 1163 hb_ot_layout_substitute_finish() 1164 hb_ot_layout_position_start() 1165 hb_ot_layout_position_lookup() 1166 hb_ot_layout_position_finish() 1167 1168 1169 1170 Overview of changes leading to 0.6.0 1171 Friday, May 27, 2011 1172 ==================================== 1173 1174 - Vertical text support in GPOS 1175 - Almost all API entries have unit tests now, under test/ 1176 - All thread-safety issues are fixed 1177 1178 Summary of API changes follows. 1179 1180 1181 * Simple Types API: 1182 1183 o New API: 1184 HB_LANGUAGE_INVALID 1185 hb_language_get_default() 1186 hb_direction_to_string() 1187 hb_direction_from_string() 1188 hb_script_get_horizontal_direction() 1189 HB_UNTAG() 1190 1191 o Renamed API: 1192 hb_category_t renamed to hb_unicode_general_category_t 1193 1194 o Changed API: 1195 hb_language_t is a typed pointers now 1196 1197 o Removed API: 1198 HB_TAG_STR() 1199 1200 1201 * Use ISO 15924 tags for hb_script_t: 1202 1203 o New API: 1204 hb_script_from_iso15924_tag() 1205 hb_script_to_iso15924_tag() 1206 hb_script_from_string() 1207 1208 o Changed API: 1209 HB_SCRIPT_* enum members changed value. 1210 1211 1212 * Buffer API streamlined: 1213 1214 o New API: 1215 hb_buffer_reset() 1216 hb_buffer_set_length() 1217 hb_buffer_allocation_successful() 1218 1219 o Renamed API: 1220 hb_buffer_ensure() renamed to hb_buffer_pre_allocate() 1221 hb_buffer_add_glyph() renamed to hb_buffer_add() 1222 1223 o Removed API: 1224 hb_buffer_clear() 1225 hb_buffer_clear_positions() 1226 1227 o Changed API: 1228 hb_buffer_get_glyph_infos() takes an out length parameter now 1229 hb_buffer_get_glyph_positions() takes an out length parameter now 1230 1231 1232 * Blob API streamlined: 1233 1234 o New API: 1235 hb_blob_get_data() 1236 hb_blob_get_data_writable() 1237 1238 o Renamed API: 1239 hb_blob_create_empty() renamed to hb_blob_get_empty() 1240 1241 o Removed API: 1242 hb_blob_lock() 1243 hb_blob_unlock() 1244 hb_blob_is_writable() 1245 hb_blob_try_writable() 1246 1247 o Changed API: 1248 hb_blob_create() takes user_data before destroy now 1249 1250 1251 * Unicode functions API: 1252 1253 o Unicode function vectors can subclass other unicode function vectors now. 1254 Unimplemented callbacks in the subclass automatically chainup to the parent. 1255 1256 o All hb_unicode_funcs_t callbacks take a user_data now. Their setters 1257 take a user_data and its respective destroy callback. 1258 1259 o New API: 1260 hb_unicode_funcs_get_empty() 1261 hb_unicode_funcs_get_default() 1262 hb_unicode_funcs_get_parent() 1263 1264 o Changed API: 1265 hb_unicode_funcs_create() now takes a parent_funcs. 1266 1267 o Removed func getter functions: 1268 hb_unicode_funcs_get_mirroring_func() 1269 hb_unicode_funcs_get_general_category_func() 1270 hb_unicode_funcs_get_script_func() 1271 hb_unicode_funcs_get_combining_class_func() 1272 hb_unicode_funcs_get_eastasian_width_func() 1273 1274 1275 * Face API: 1276 1277 o Renamed API: 1278 hb_face_get_table() renamed to hb_face_reference_table() 1279 hb_face_create_for_data() renamed to hb_face_create() 1280 1281 o Changed API: 1282 hb_face_create_for_tables() takes user_data before destroy now 1283 hb_face_reference_table() returns empty blob instead of NULL 1284 hb_get_table_func_t accepts the face as first parameter now 1285 1286 * Font API: 1287 1288 o Fonts can subclass other fonts now. Unimplemented callbacks in the 1289 subclass automatically chainup to the parent. When chaining up, 1290 scale is adjusted if the parent font has a different scale. 1291 1292 o All hb_font_funcs_t callbacks take a user_data now. Their setters 1293 take a user_data and its respective destroy callback. 1294 1295 o New API: 1296 hb_font_get_parent() 1297 hb_font_funcs_get_empty() 1298 hb_font_create_sub_font() 1299 1300 o Removed API: 1301 hb_font_funcs_copy() 1302 hb_font_unset_funcs() 1303 1304 o Removed func getter functions: 1305 hb_font_funcs_get_glyph_func() 1306 hb_font_funcs_get_glyph_advance_func() 1307 hb_font_funcs_get_glyph_extents_func() 1308 hb_font_funcs_get_contour_point_func() 1309 hb_font_funcs_get_kerning_func() 1310 1311 o Changed API: 1312 hb_font_create() takes a face and references it now 1313 hb_font_set_funcs() takes user_data before destroy now 1314 hb_font_set_scale() accepts signed integers now 1315 hb_font_get_contour_point_func_t now takes glyph first, then point_index 1316 hb_font_get_glyph_func_t returns a success boolean now 1317 1318 1319 * Changed object model: 1320 1321 o All object types have a _get_empty() now: 1322 hb_blob_get_empty() 1323 hb_buffer_get_empty() 1324 hb_face_get_empty() 1325 hb_font_get_empty() 1326 hb_font_funcs_get_empty() 1327 hb_unicode_funcs_get_empty() 1328 1329 o Added _set_user_data() and _get_user_data() for all object types: 1330 hb_blob_get_user_data() 1331 hb_blob_set_user_data() 1332 hb_buffer_get_user_data() 1333 hb_buffer_set_user_data() 1334 hb_face_get_user_data() 1335 hb_face_set_user_data() 1336 hb_font_funcs_get_user_data() 1337 hb_font_funcs_set_user_data() 1338 hb_font_get_user_data() 1339 hb_font_set_user_data() 1340 hb_unicode_funcs_get_user_data() 1341 hb_unicode_funcs_set_user_data() 1342 1343 o Removed the _get_reference_count() from all object types: 1344 hb_blob_get_reference_count() 1345 hb_buffer_get_reference_count() 1346 hb_face_get_reference_count() 1347 hb_font_funcs_get_reference_count() 1348 hb_font_get_reference_count() 1349 hb_unicode_funcs_get_reference_count() 1350 1351 o Added _make_immutable() and _is_immutable() for all object types except for buffer: 1352 hb_blob_make_immutable() 1353 hb_blob_is_immutable() 1354 hb_face_make_immutable() 1355 hb_face_is_immutable() 1356 1357 1358 * Changed API for vertical text support 1359 1360 o The following callbacks where removed: 1361 hb_font_get_glyph_advance_func_t 1362 hb_font_get_kerning_func_t 1363 1364 o The following new callbacks added instead: 1365 hb_font_get_glyph_h_advance_func_t 1366 hb_font_get_glyph_v_advance_func_t 1367 hb_font_get_glyph_h_origin_func_t 1368 hb_font_get_glyph_v_origin_func_t 1369 hb_font_get_glyph_h_kerning_func_t 1370 hb_font_get_glyph_v_kerning_func_t 1371 1372 o The following API removed as such: 1373 hb_font_funcs_set_glyph_advance_func() 1374 hb_font_funcs_set_kerning_func() 1375 hb_font_get_glyph_advance() 1376 hb_font_get_kerning() 1377 1378 o New API added instead: 1379 hb_font_funcs_set_glyph_h_advance_func() 1380 hb_font_funcs_set_glyph_v_advance_func() 1381 hb_font_funcs_set_glyph_h_origin_func() 1382 hb_font_funcs_set_glyph_v_origin_func() 1383 hb_font_funcs_set_glyph_h_kerning_func() 1384 hb_font_funcs_set_glyph_v_kerning_func() 1385 hb_font_get_glyph_h_advance() 1386 hb_font_get_glyph_v_advance() 1387 hb_font_get_glyph_h_origin() 1388 hb_font_get_glyph_v_origin() 1389 hb_font_get_glyph_h_kerning() 1390 hb_font_get_glyph_v_kerning() 1391 1392 o The following higher-leve API added for convenience: 1393 hb_font_get_glyph_advance_for_direction() 1394 hb_font_get_glyph_origin_for_direction() 1395 hb_font_add_glyph_origin_for_direction() 1396 hb_font_subtract_glyph_origin_for_direction() 1397 hb_font_get_glyph_kerning_for_direction() 1398 hb_font_get_glyph_extents_for_origin() 1399 hb_font_get_glyph_contour_point_for_origin() 1400 1401 1402 * OpenType Layout API: 1403 1404 o New API: 1405 hb_ot_layout_position_start() 1406 hb_ot_layout_substitute_start() 1407 hb_ot_layout_substitute_finish() 1408 1409 1410 * Glue code: 1411 1412 o New API: 1413 hb_glib_script_to_script() 1414 hb_glib_script_from_script() 1415 hb_icu_script_to_script() 1416 hb_icu_script_from_script() 1417 1418 1419 * Version API added: 1420 1421 o New API: 1422 HB_VERSION_MAJOR 1423 HB_VERSION_MINOR 1424 HB_VERSION_MICRO 1425 HB_VERSION_STRING 1426 HB_VERSION_CHECK() 1427 hb_version() 1428 hb_version_string() 1429 hb_version_check() 1430 1431 1432
