1 Overview of changes leading to 0.9.24 2 Tuesday, November 13, 2013 3 ===================================== 4 5 - Misc compiler warning fixes with clang. 6 - No functional changes. 7 8 9 Overview of changes leading to 0.9.23 10 Monday, October 28, 2013 11 ===================================== 12 13 - "Udupi HarfBuzz Hackfest", Paris, October 14..18 2013. 14 - Fix (Chain)Context recursion with non-monotone lookup positions. 15 - Misc Indic bug fixes. 16 - New Javanese / Buginese shaping, similar to Windows 8.1. 17 18 19 Overview of changes leading to 0.9.22 20 Thursday, October 3, 2013 21 ===================================== 22 23 - Fix use-after-end-of-scope in hb_language_from_string(). 24 - Fix hiding of default_ignorables if font doesn't have space glyph. 25 - Protect against out-of-range lookup indices. 26 27 - API Changes: 28 29 * Added hb_ot_layout_table_get_lookup_count() 30 31 32 Overview of changes leading to 0.9.21 33 Monday, September 16, 2013 34 ===================================== 35 36 - Rename gobject-introspection library name from harfbuzz to HarfBuzz. 37 - Remove (long disabled) hb-old and hb-icu-le test shapers. 38 - Misc gtk-doc and gobject-introspection annotations. 39 - Misc fixes. 40 - API changes: 41 42 * Add HB_SET_VALUE_INVALID 43 44 Overview of changes leading to 0.9.20 45 Thursday, August 29, 2013 46 ===================================== 47 48 General: 49 - Misc substitute_closure() fixes. 50 - Build fixes. 51 52 Documentation: 53 - gtk-doc boilerplate integrated. Docs are built now, but 54 contain no contents. By next release hopefully we have 55 some content in. Enable using --enable-gtk-doc. 56 57 GObject and Introspection: 58 - Added harfbuzz-gobject library (hb-gobject.h) that has type 59 bindings for all HarfBuzz objects and enums. Enable using 60 --with-gobject. 61 - Added gobject-introspection boilerplate. Nothing useful 62 right now. Work in progress. Gets enabled automatically if 63 --with-gobject is used. Override with --disable-introspection. 64 65 OpenType shaper: 66 - Apply 'mark' in Myanmar shaper. 67 - Don't apply 'dlig' by default. 68 69 Uniscribe shaper: 70 - Support user features. 71 - Fix loading of fonts that are also installed on the system. 72 - Fix shaping of Arabic Presentation Forms. 73 - Fix build with wide chars. 74 75 CoreText shaper: 76 - Support user features. 77 78 Source changes: 79 - hb_face_t code moved to hb-face.h / hb-face.cc. 80 - Added hb-deprecated.h. 81 82 API changes: 83 - Added HB_DISABLE_DEPRECATED. 84 - Deprecated HB_SCRIPT_CANADIAN_ABORIGINAL; replaced by 85 HB_SCRIPT_CANADIAN_SYLLABICS. 86 - Deprecated HB_BUFFER_FLAGS_DEFAULT; replaced by 87 HB_BUFFER_FLAG_DEFAULT. 88 - Deprecated HB_BUFFER_SERIALIZE_FLAGS_DEFAULT; replaced by 89 HB_BUFFER_SERIALIZE_FLAG_DEFAULT. 90 91 92 Overview of changes leading to 0.9.19 93 Tuesday, July 16, 2013 94 ===================================== 95 96 - Build fixes. 97 - Better handling of multiple variation selectors in a row. 98 - Pass on variation selector to GSUB if not consumed by cmap. 99 - Fix undefined memory access. 100 - Add Javanese config to Indic shaper. 101 - Misc bug fixes. 102 103 Overview of changes leading to 0.9.18 104 Tuesday, May 28, 2013 105 ===================================== 106 107 New build system: 108 109 - All unneeded code is all disabled by default, 110 111 - Uniscribe and CoreText shapers can be enabled with their --with options, 112 113 - icu_le and old shapers cannot be enabled for now, 114 115 - glib, freetype, and cairo will be detected automatically. 116 They can be force on/off'ed with their --with options, 117 118 - icu and graphite2 are default off, can be enabled with their --with 119 options, 120 121 Moreover, ICU support is now build into a separate library: 122 libharfbuzz-icu.so, and a new harfbuzz-icu.pc is shipped for it. 123 Distros can enable ICU now without every application on earth 124 getting linked to via libharfbuzz.so. 125 126 For distros I recommend that they make sure they are building --with-glib 127 --with-freetype --with-cairo, --with-icu, and optionally --with-graphite2; 128 And package harfbuzz and harfbuzz-icu separately. 129 130 131 Overview of changes leading to 0.9.17 132 Monday, May 20, 2013 133 ===================================== 134 135 - Build fixes. 136 - Fix bug in hb_set_get_min(). 137 - Fix regression with Arabic mark positioning / width-zeroing. 138 139 Overview of changes leading to 0.9.16 140 Friday, April 19, 2013 141 ===================================== 142 143 - Major speedup in OpenType lookup processing. With the Amiri 144 Arabic font, this release is over 3x faster than previous 145 release. All scripts / languages should see this speedup. 146 147 - New --num-iterations option for hb-shape / hb-view; useful for 148 profiling. 149 150 Overview of changes leading to 0.9.15 151 Friday, April 05, 2013 152 ===================================== 153 154 - Build fixes. 155 - Fix crasher in graphite2 shaper. 156 - Fix Arabic mark width zeroing regression. 157 - Don't compose Hangul jamo into Unicode syllables. 158 159 160 Overview of changes leading to 0.9.14 161 Thursday, March 21, 2013 162 ===================================== 163 164 - Build fixes. 165 - Fix time-consuming sanitize with malicious fonts. 166 - Implement hb_buffer_deserialize_glyphs() for both json and text. 167 - Do not ignore Hangul filler characters. 168 - Indic fixes: 169 * Fix Malayalam pre-base reordering interaction with post-forms. 170 * Further adjust ZWJ handling. Should fix known regressions from 171 0.9.13. 172 173 174 Overview of changes leading to 0.9.13 175 Thursday, February 25, 2013 176 ===================================== 177 178 - Build fixes. 179 - Ngapi HarfBuzz Hackfest in London (February 2013): 180 * Fixed all known Indic bugs, 181 * New Win8-style Myanmar shaper, 182 * New South-East Asian shaper for Tai Tham, Cham, and New Tai Lue, 183 * Smartly ignore Default_Ignorable characters (joiners, etc) wheb 184 matching GSUB/GPOS lookups, 185 * Fix 'Phags-Pa U+A872 shaping, 186 * Fix partial disabling of default-on features, 187 * Allow disabling of TrueType kerning. 188 - Fix possible crasher with broken fonts with overlapping tables. 189 - Removed generated files from git again. So, one needs ragel to 190 bootstrap from the git tree. 191 192 API changes: 193 - hb_shape() and related APIs now abort if buffer direction is 194 HB_DIRECTION_INVALID. Previously, hb_shape() was calling 195 hb_buffer_guess_segment_properties() on the buffer before 196 shaping. The heuristics in that function are fragile. If the 197 user really wants the old behvaior, they can call that function 198 right before calling hb_shape() to get the old behavior. 199 - hb_blob_create_sub_blob() always creates sub-blob with 200 HB_MEMORY_MODE_READONLY. See comments for the reason. 201 202 203 Overview of changes leading to 0.9.12 204 Thursday, January 18, 2013 205 ===================================== 206 207 - Build fixes for Sun compiler. 208 - Minor bug fix. 209 210 Overview of changes leading to 0.9.11 211 Thursday, January 10, 2013 212 ===================================== 213 214 - Build fixes. 215 - Fix GPOS mark attachment with null Anchor offsets. 216 - [Indic] Fix old-spec reordering of viramas if sequence ends in one. 217 - Fix multi-threaded shaper data creation crash. 218 - Add atomic ops for Solaris. 219 220 API changes: 221 - Rename hb_buffer_clear() to hb_buffer_clear_contents(). 222 223 224 Overview of changes leading to 0.9.10 225 Thursday, January 3, 2013 226 ===================================== 227 228 - [Indic] Fixed rendering of Malayalam dot-reph 229 - Updated OT language tags. 230 - Updated graphite2 backend. 231 - Improved hb_ot_layout_get_size_params() logic. 232 - Improve hb-shape/hb-view help output. 233 - Fixed hb-set.h implementation to not crash. 234 - Fixed various issues with hb_ot_layout_collect_lookups(). 235 - Various build fixes. 236 237 New API: 238 239 hb_graphite2_face_get_gr_face() 240 hb_graphite2_font_get_gr_font() 241 hb_coretext_face_get_cg_font() 242 243 Modified API: 244 245 hb_ot_layout_get_size_params() 246 247 248 Overview of changes leading to 0.9.9 249 Wednesday, December 5, 2012 250 ==================================== 251 252 - Fix build on Windows. 253 - Minor improvements. 254 255 256 Overview of changes leading to 0.9.8 257 Tuesday, December 4, 2012 258 ==================================== 259 260 261 - Actually implement hb_shape_plan_get_shaper (). 262 - Make UCDB data tables const. 263 - Lots of internal refactoring in OTLayout tables. 264 - Flesh out hb_ot_layout_lookup_collect_glyphs(). 265 266 New API: 267 268 hb_ot_layout_collect_lookups() 269 hb_ot_layout_get_size_params() 270 271 272 Overview of changes leading to 0.9.7 273 Sunday, November 21, 2012 274 ==================================== 275 276 277 HarfBuzz "All-You-Can-Eat-Sushi" (aka Vancouver) Hackfest and follow-on fixes. 278 279 - Fix Arabic contextual joining using pre-context text. 280 - Fix Sinhala "split matra" mess. 281 - Fix Khmer shaping with broken fonts. 282 - Implement Thai "PUA" shaping for old fonts. 283 - Do NOT route Kharoshthi script through the Indic shaper. 284 - Disable fallback positioning for Indic and Thai shapers. 285 - Misc fixes. 286 287 288 hb-shape / hb-view changes: 289 290 - Add --text-before and --text-after 291 - Add --bot / --eot / --preserve-default-ignorables 292 - hb-shape --output-format=json 293 294 295 New API: 296 297 hb_buffer_clear() 298 299 hb_buffer_flags_t 300 301 HB_BUFFER_FLAGS_DEFAULT 302 HB_BUFFER_FLAG_BOT 303 HB_BUFFER_FLAG_EOT 304 HB_BUFFER_FLAG_PRESERVE_DEFAULT_IGNORABLES 305 306 hb_buffer_set_flags() 307 hb_buffer_get_flags() 308 309 HB_BUFFER_SERIALIZE_FLAGS 310 hb_buffer_serialize_glyphs() 311 hb_buffer_deserialize_glyphs() 312 hb_buffer_serialize_list_formats() 313 314 hb_set_add_range() 315 hb_set_del_range() 316 hb_set_get_population() 317 hb_set_next_range() 318 319 hb_face_[sg]et_glyph_count() 320 321 hb_segment_properties_t 322 HB_SEGMENT_PROPERTIES_DEFAULT 323 hb_segment_properties_equal() 324 hb_segment_properties_hash() 325 326 hb_buffer_set_segment_properties() 327 hb_buffer_get_segment_properties() 328 329 hb_ot_layout_glyph_class_t 330 hb_ot_layout_get_glyph_class() 331 hb_ot_layout_get_glyphs_in_class() 332 333 hb_shape_plan_t 334 hb_shape_plan_create() 335 hb_shape_plan_create_cached() 336 hb_shape_plan_get_empty() 337 hb_shape_plan_reference() 338 hb_shape_plan_destroy() 339 hb_shape_plan_set_user_data() 340 hb_shape_plan_get_user_data() 341 hb_shape_plan_execute() 342 hb_shape_plan_get_shaper() 343 344 hb_ot_shape_plan_collect_lookups() 345 346 347 API changes: 348 349 - Remove "mask" parameter from hb_buffer_add(). 350 - Rename hb_ot_layout_would_substitute_lookup() and hb_ot_layout_substitute_closure_lookup(). 351 - hb-set.h API const correction. 352 - Renamed hb_set_min/max() to hb_set_get_min/max(). 353 - Rename hb_ot_layout_feature_get_lookup_indexes() to hb_ot_layout_feature_get_lookups(). 354 - Rename hb_buffer_guess_properties() to hb_buffer_guess_segment_properties(). 355 356 357 358 Overview of changes leading to 0.9.6 359 Sunday, November 13, 2012 360 ==================================== 361 362 - Don't clear pre-context text if no new context is provided. 363 - Fix ReverseChainingSubstLookup, which was totally borked. 364 - Adjust output format of hb-shape a bit. 365 - Include config.h.in in-tree. Makes it easier for alternate build systems. 366 - Fix hb_buffer_set_length(buffer, 0) invalid memory allocation. 367 - Use ICU LayoutEngine's C API instead of C++. Avoids much headache. 368 - Drop glyphs for all of Unicode Default_Ignorable characters. 369 - Misc build fixes. 370 371 Arabic shaper: 372 - Enable 'dlig' and 'mset' features in Arabic shaper. 373 - Implement 'Phags-pa shaping, improve Mongolian. 374 375 Indic shaper: 376 - Decompose Sinhala split matras the way old HarfBuzz / Pango did. 377 - Initial support for Consonant Medials. 378 - Start adding new-style Myanmar shaping. 379 - Make reph and 'pref' logic introspect the font. 380 - Route Meetei-Mayek through the Indic shaper. 381 - Don't apply 'liga' in Indic shaper. 382 - Improve Malayalam pre-base reordering Ra interaction with Chillus. 383 384 385 386 Overview of changes leading to 0.9.5 387 Sunday, October 14, 2012 388 ==================================== 389 390 - Synthetic-GSUB Arabic fallback shaping. 391 392 - Misc Indic improvements. 393 394 - Add build system support for pthread. 395 396 - Imported UCDN for in-tree Unicode callbacks implementation. 397 398 - Context-aware Arabic joining. 399 400 - Misc other fixes. 401 402 - New API: 403 404 hb_feature_to/from-string() 405 hb_buffer_[sg]et_content_type() 406 407 408 409 Overview of changes leading to 0.9.4 410 Tuesday, Sep 03, 2012 411 ==================================== 412 413 - Indic improvements with old-spec Malayalam. 414 415 - Better fallback glyph positioning, specially with Thai / Lao marks. 416 417 - Implement dotted-circle insertion. 418 419 - Better Arabic fallback shaping / ligation. 420 421 - Added ICU LayoutEngine backend for testing. Call it by the 'icu_le' name. 422 423 - Misc fixes. 424 425 426 427 Overview of changes leading to 0.9.3 428 Friday, Aug 18, 2012 429 ==================================== 430 431 - Fixed fallback mark positioning for left-to-right text. 432 433 - Improve mark positioning for the remaining combining classes. 434 435 - Unbreak Thai and fallback Arabic shaping. 436 437 - Port Arabic shaper to shape-plan caching. 438 439 - Use new ICU normalizer functions. 440 441 442 443 Overview of changes leading to 0.9.2 444 Friday, Aug 10, 2012 445 ==================================== 446 447 - Over a thousand commits! This is the first major release of HarfBuzz. 448 449 - HarfBuzz is feature-complete now! It should be in par, or better, than 450 both Pango's shapers and old HarfBuzz / Qt shapers. 451 452 - New Indic shaper, supporting main Indic scripts, Sinhala, and Khmer. 453 454 - Improved Arabic shaper, with fallback Arabic shaping, supporting Arabic, 455 Sinhala, N'ko, Mongolian, and Mandaic. 456 457 - New Thai / Lao shaper. 458 459 - Tibetan / Hangul support in the generic shaper. 460 461 - Synthetic GDEF support for fonts without a GDEF table. 462 463 - Fallback mark positioning for fonts without a GPOS table. 464 465 - Unicode normalization shaping heuristic during glyph mapping. 466 467 - New experimental Graphite2 backend. 468 469 - New Uniscribe backend (primarily for testing). 470 471 - New CoreText backend (primarily for testing). 472 473 - Major optimization and speedup. 474 475 - Test suites and testing infrastructure (work in progress). 476 477 - Greatly improved hb-view cmdline tool. 478 479 - hb-shape cmdline tool. 480 481 - Unicode 6.1 support. 482 483 Summary of API changes: 484 485 o Changed API: 486 487 - Users are expected to only include main header files now (ie. hb.h, 488 hb-glib.h, hb-ft.h, ...) 489 490 - All struct tag names had their initial underscore removed. 491 Ie. "struct _hb_buffer_t" is "struct hb_buffer_t" now. 492 493 - All set_user_data() functions now take a "replace" boolean parameter. 494 495 - hb_buffer_create() takes zero arguments now. 496 Use hb_buffer_pre_allocate() to pre-allocate. 497 498 - hb_buffer_add_utf*() now accept -1 for length parameteres, 499 meaning "nul-terminated". 500 501 - hb_direction_t enum values changed. 502 503 - All *_from_string() APIs now take a length parameter to allow for 504 non-nul-terminated strings. A -1 length means "nul-terminated". 505 506 - Typedef for hb_language_t changed. 507 508 - hb_get_table_func_t renamed to hb_reference_table_func_t. 509 510 - hb_ot_layout_table_choose_script() 511 512 - Various renames in hb-unicode.h. 513 514 o New API: 515 516 - hb_buffer_guess_properties() 517 Automatically called by hb_shape(). 518 519 - hb_buffer_normalize_glyphs() 520 521 - hb_tag_from_string() 522 523 - hb-coretext.h 524 525 - hb-uniscribe.h 526 527 - hb_face_reference_blob() 528 - hb_face_[sg]et_index() 529 - hb_face_set_upem() 530 531 - hb_font_get_glyph_name_func_t 532 hb_font_get_glyph_from_name_func_t 533 hb_font_funcs_set_glyph_name_func() 534 hb_font_funcs_set_glyph_from_name_func() 535 hb_font_get_glyph_name() 536 hb_font_get_glyph_from_name() 537 hb_font_glyph_to_string() 538 hb_font_glyph_from_string() 539 540 - hb_font_set_funcs_data() 541 542 - hb_ft_font_set_funcs() 543 - hb_ft_font_get_face() 544 545 - hb-gobject.h (work in progress) 546 547 - hb_ot_shape_glyphs_closure() 548 hb_ot_layout_substitute_closure_lookup() 549 550 - hb-set.h 551 552 - hb_shape_full() 553 554 - hb_unicode_combining_class_t 555 556 - hb_unicode_compose_func_t 557 hb_unicode_decompose_func_t 558 hb_unicode_decompose_compatibility_func_t 559 hb_unicode_funcs_set_compose_func() 560 hb_unicode_funcs_set_decompose_func() 561 hb_unicode_funcs_set_decompose_compatibility_func() 562 hb_unicode_compose() 563 hb_unicode_decompose() 564 hb_unicode_decompose_compatibility() 565 566 o Removed API: 567 568 - hb_ft_get_font_funcs() 569 570 - hb_ot_layout_substitute_start() 571 hb_ot_layout_substitute_lookup() 572 hb_ot_layout_substitute_finish() 573 hb_ot_layout_position_start() 574 hb_ot_layout_position_lookup() 575 hb_ot_layout_position_finish() 576 577 578 579 Overview of changes leading to 0.6.0 580 Friday, May 27, 2011 581 ==================================== 582 583 - Vertical text support in GPOS 584 - Almost all API entries have unit tests now, under test/ 585 - All thread-safety issues are fixed 586 587 Summary of API changes follows. 588 589 590 * Simple Types API: 591 592 o New API: 593 HB_LANGUAGE_INVALID 594 hb_language_get_default() 595 hb_direction_to_string() 596 hb_direction_from_string() 597 hb_script_get_horizontal_direction() 598 HB_UNTAG() 599 600 o Renamed API: 601 hb_category_t renamed to hb_unicode_general_category_t 602 603 o Changed API: 604 hb_language_t is a typed pointers now 605 606 o Removed API: 607 HB_TAG_STR() 608 609 610 * Use ISO 15924 tags for hb_script_t: 611 612 o New API: 613 hb_script_from_iso15924_tag() 614 hb_script_to_iso15924_tag() 615 hb_script_from_string() 616 617 o Changed API: 618 HB_SCRIPT_* enum members changed value. 619 620 621 * Buffer API streamlined: 622 623 o New API: 624 hb_buffer_reset() 625 hb_buffer_set_length() 626 hb_buffer_allocation_successful() 627 628 o Renamed API: 629 hb_buffer_ensure() renamed to hb_buffer_pre_allocate() 630 hb_buffer_add_glyph() renamed to hb_buffer_add() 631 632 o Removed API: 633 hb_buffer_clear() 634 hb_buffer_clear_positions() 635 636 o Changed API: 637 hb_buffer_get_glyph_infos() takes an out length parameter now 638 hb_buffer_get_glyph_positions() takes an out length parameter now 639 640 641 * Blob API streamlined: 642 643 o New API: 644 hb_blob_get_data() 645 hb_blob_get_data_writable() 646 647 o Renamed API: 648 hb_blob_create_empty() renamed to hb_blob_get_empty() 649 650 o Removed API: 651 hb_blob_lock() 652 hb_blob_unlock() 653 hb_blob_is_writable() 654 hb_blob_try_writable() 655 656 o Changed API: 657 hb_blob_create() takes user_data before destroy now 658 659 660 * Unicode functions API: 661 662 o Unicode function vectors can subclass other unicode function vectors now. 663 Unimplemented callbacks in the subclass automatically chainup to the parent. 664 665 o All hb_unicode_funcs_t callbacks take a user_data now. Their setters 666 take a user_data and its respective destroy callback. 667 668 o New API: 669 hb_unicode_funcs_get_empty() 670 hb_unicode_funcs_get_default() 671 hb_unicode_funcs_get_parent() 672 673 o Changed API: 674 hb_unicode_funcs_create() now takes a parent_funcs. 675 676 o Removed func getter functions: 677 hb_unicode_funcs_get_mirroring_func() 678 hb_unicode_funcs_get_general_category_func() 679 hb_unicode_funcs_get_script_func() 680 hb_unicode_funcs_get_combining_class_func() 681 hb_unicode_funcs_get_eastasian_width_func() 682 683 684 * Face API: 685 686 o Renamed API: 687 hb_face_get_table() renamed to hb_face_reference_table() 688 hb_face_create_for_data() renamed to hb_face_create() 689 690 o Changed API: 691 hb_face_create_for_tables() takes user_data before destroy now 692 hb_face_reference_table() returns empty blob instead of NULL 693 hb_get_table_func_t accepts the face as first parameter now 694 695 * Font API: 696 697 o Fonts can subclass other fonts now. Unimplemented callbacks in the 698 subclass automatically chainup to the parent. When chaining up, 699 scale is adjusted if the parent font has a different scale. 700 701 o All hb_font_funcs_t callbacks take a user_data now. Their setters 702 take a user_data and its respective destroy callback. 703 704 o New API: 705 hb_font_get_parent() 706 hb_font_funcs_get_empty() 707 hb_font_create_sub_font() 708 709 o Removed API: 710 hb_font_funcs_copy() 711 hb_font_unset_funcs() 712 713 o Removed func getter functions: 714 hb_font_funcs_get_glyph_func() 715 hb_font_funcs_get_glyph_advance_func() 716 hb_font_funcs_get_glyph_extents_func() 717 hb_font_funcs_get_contour_point_func() 718 hb_font_funcs_get_kerning_func() 719 720 o Changed API: 721 hb_font_create() takes a face and references it now 722 hb_font_set_funcs() takes user_data before destroy now 723 hb_font_set_scale() accepts signed integers now 724 hb_font_get_contour_point_func_t now takes glyph first, then point_index 725 hb_font_get_glyph_func_t returns a success boolean now 726 727 728 * Changed object model: 729 730 o All object types have a _get_empty() now: 731 hb_blob_get_empty() 732 hb_buffer_get_empty() 733 hb_face_get_empty() 734 hb_font_get_empty() 735 hb_font_funcs_get_empty() 736 hb_unicode_funcs_get_empty() 737 738 o Added _set_user_data() and _get_user_data() for all object types: 739 hb_blob_get_user_data() 740 hb_blob_set_user_data() 741 hb_buffer_get_user_data() 742 hb_buffer_set_user_data() 743 hb_face_get_user_data() 744 hb_face_set_user_data() 745 hb_font_funcs_get_user_data() 746 hb_font_funcs_set_user_data() 747 hb_font_get_user_data() 748 hb_font_set_user_data() 749 hb_unicode_funcs_get_user_data() 750 hb_unicode_funcs_set_user_data() 751 752 o Removed the _get_reference_count() from all object types: 753 hb_blob_get_reference_count() 754 hb_buffer_get_reference_count() 755 hb_face_get_reference_count() 756 hb_font_funcs_get_reference_count() 757 hb_font_get_reference_count() 758 hb_unicode_funcs_get_reference_count() 759 760 o Added _make_immutable() and _is_immutable() for all object types except for buffer: 761 hb_blob_make_immutable() 762 hb_blob_is_immutable() 763 hb_face_make_immutable() 764 hb_face_is_immutable() 765 766 767 * Changed API for vertical text support 768 769 o The following callbacks where removed: 770 hb_font_get_glyph_advance_func_t 771 hb_font_get_kerning_func_t 772 773 o The following new callbacks added instead: 774 hb_font_get_glyph_h_advance_func_t 775 hb_font_get_glyph_v_advance_func_t 776 hb_font_get_glyph_h_origin_func_t 777 hb_font_get_glyph_v_origin_func_t 778 hb_font_get_glyph_h_kerning_func_t 779 hb_font_get_glyph_v_kerning_func_t 780 781 o The following API removed as such: 782 hb_font_funcs_set_glyph_advance_func() 783 hb_font_funcs_set_kerning_func() 784 hb_font_get_glyph_advance() 785 hb_font_get_kerning() 786 787 o New API added instead: 788 hb_font_funcs_set_glyph_h_advance_func() 789 hb_font_funcs_set_glyph_v_advance_func() 790 hb_font_funcs_set_glyph_h_origin_func() 791 hb_font_funcs_set_glyph_v_origin_func() 792 hb_font_funcs_set_glyph_h_kerning_func() 793 hb_font_funcs_set_glyph_v_kerning_func() 794 hb_font_get_glyph_h_advance() 795 hb_font_get_glyph_v_advance() 796 hb_font_get_glyph_h_origin() 797 hb_font_get_glyph_v_origin() 798 hb_font_get_glyph_h_kerning() 799 hb_font_get_glyph_v_kerning() 800 801 o The following higher-leve API added for convenience: 802 hb_font_get_glyph_advance_for_direction() 803 hb_font_get_glyph_origin_for_direction() 804 hb_font_add_glyph_origin_for_direction() 805 hb_font_subtract_glyph_origin_for_direction() 806 hb_font_get_glyph_kerning_for_direction() 807 hb_font_get_glyph_extents_for_origin() 808 hb_font_get_glyph_contour_point_for_origin() 809 810 811 * OpenType Layout API: 812 813 o New API: 814 hb_ot_layout_position_start() 815 hb_ot_layout_substitute_start() 816 hb_ot_layout_substitute_finish() 817 818 819 * Glue code: 820 821 o New API: 822 hb_glib_script_to_script() 823 hb_glib_script_from_script() 824 hb_icu_script_to_script() 825 hb_icu_script_from_script() 826 827 828 * Version API added: 829 830 o New API: 831 HB_VERSION_MAJOR 832 HB_VERSION_MINOR 833 HB_VERSION_MICRO 834 HB_VERSION_STRING 835 HB_VERSION_CHECK() 836 hb_version() 837 hb_version_string() 838 hb_version_check() 839 840 841
