1 Overview of changes leading to 0.9.27 2 Tuesday, March 18, 2014 3 ===================================== 4 5 - Don't use "register" storage class specifier 6 - Wrap definition of free_langs() with HAVE_ATEXIT 7 - Add coretext_aat shaper and hb_coretext_face_create() constructor 8 - If HAVE_ICU_BUILTIN is defined, use hb-icu Unicode callbacks 9 - Add Myanmar test case from OpenType Myanmar spec 10 - Only do fallback Hebrew composition if no GPOS 'mark' available 11 - Allow bootstrapping without gtk-doc 12 - Use AM_MISSING_PROG for ragel and git 13 - Typo in ucdn's Makefile.am 14 - Improve MemoryBarrier() implementation 15 16 17 Overview of changes leading to 0.9.26 18 Thursday, January 30, 2014 19 ===================================== 20 21 - Misc fixes. 22 - Fix application of 'rtlm' feature. 23 - Automatically apply frac/numr/dnom around U+2044 FRACTION SLASH. 24 - New header: hb-ot-shape.h 25 - Uniscribe: fix scratch-buffer accounting. 26 - Reorder Tai Tham SAKOT to after tone-marks. 27 - Add Hangul shaper. 28 - New files: 29 hb-ot-shape-complex-hangul.cc 30 hb-ot-shape-complex-hebrew.cc 31 hb-ot-shape-complex-tibetan.cc 32 - Disable 'cswh' feature in Arabic shaper. 33 - Coretext: better handle surrogate pairs. 34 - Add HB_TAG_MAX and _HB_SCRIPT_MAX_VALUE. 35 36 37 Overview of changes leading to 0.9.25 38 Wednesday, December 4, 2013 39 ===================================== 40 41 - Myanmar shaper improvements. 42 - Avoid font fallback in CoreText backend. 43 - Additional OpenType language tag mappiongs. 44 - More aggressive shape-plan caching. 45 - Build with / require automake 1.13. 46 - Build with libtool 2.4.2.418 alpha to support ppc64le. 47 48 49 Overview of changes leading to 0.9.24 50 Tuesday, November 13, 2013 51 ===================================== 52 53 - Misc compiler warning fixes with clang. 54 - No functional changes. 55 56 57 Overview of changes leading to 0.9.23 58 Monday, October 28, 2013 59 ===================================== 60 61 - "Udupi HarfBuzz Hackfest", Paris, October 14..18 2013. 62 - Fix (Chain)Context recursion with non-monotone lookup positions. 63 - Misc Indic bug fixes. 64 - New Javanese / Buginese shaping, similar to Windows 8.1. 65 66 67 Overview of changes leading to 0.9.22 68 Thursday, October 3, 2013 69 ===================================== 70 71 - Fix use-after-end-of-scope in hb_language_from_string(). 72 - Fix hiding of default_ignorables if font doesn't have space glyph. 73 - Protect against out-of-range lookup indices. 74 75 - API Changes: 76 77 * Added hb_ot_layout_table_get_lookup_count() 78 79 80 Overview of changes leading to 0.9.21 81 Monday, September 16, 2013 82 ===================================== 83 84 - Rename gobject-introspection library name from harfbuzz to HarfBuzz. 85 - Remove (long disabled) hb-old and hb-icu-le test shapers. 86 - Misc gtk-doc and gobject-introspection annotations. 87 - Misc fixes. 88 - API changes: 89 90 * Add HB_SET_VALUE_INVALID 91 92 Overview of changes leading to 0.9.20 93 Thursday, August 29, 2013 94 ===================================== 95 96 General: 97 - Misc substitute_closure() fixes. 98 - Build fixes. 99 100 Documentation: 101 - gtk-doc boilerplate integrated. Docs are built now, but 102 contain no contents. By next release hopefully we have 103 some content in. Enable using --enable-gtk-doc. 104 105 GObject and Introspection: 106 - Added harfbuzz-gobject library (hb-gobject.h) that has type 107 bindings for all HarfBuzz objects and enums. Enable using 108 --with-gobject. 109 - Added gobject-introspection boilerplate. Nothing useful 110 right now. Work in progress. Gets enabled automatically if 111 --with-gobject is used. Override with --disable-introspection. 112 113 OpenType shaper: 114 - Apply 'mark' in Myanmar shaper. 115 - Don't apply 'dlig' by default. 116 117 Uniscribe shaper: 118 - Support user features. 119 - Fix loading of fonts that are also installed on the system. 120 - Fix shaping of Arabic Presentation Forms. 121 - Fix build with wide chars. 122 123 CoreText shaper: 124 - Support user features. 125 126 Source changes: 127 - hb_face_t code moved to hb-face.h / hb-face.cc. 128 - Added hb-deprecated.h. 129 130 API changes: 131 - Added HB_DISABLE_DEPRECATED. 132 - Deprecated HB_SCRIPT_CANADIAN_ABORIGINAL; replaced by 133 HB_SCRIPT_CANADIAN_SYLLABICS. 134 - Deprecated HB_BUFFER_FLAGS_DEFAULT; replaced by 135 HB_BUFFER_FLAG_DEFAULT. 136 - Deprecated HB_BUFFER_SERIALIZE_FLAGS_DEFAULT; replaced by 137 HB_BUFFER_SERIALIZE_FLAG_DEFAULT. 138 139 140 Overview of changes leading to 0.9.19 141 Tuesday, July 16, 2013 142 ===================================== 143 144 - Build fixes. 145 - Better handling of multiple variation selectors in a row. 146 - Pass on variation selector to GSUB if not consumed by cmap. 147 - Fix undefined memory access. 148 - Add Javanese config to Indic shaper. 149 - Misc bug fixes. 150 151 Overview of changes leading to 0.9.18 152 Tuesday, May 28, 2013 153 ===================================== 154 155 New build system: 156 157 - All unneeded code is all disabled by default, 158 159 - Uniscribe and CoreText shapers can be enabled with their --with options, 160 161 - icu_le and old shapers cannot be enabled for now, 162 163 - glib, freetype, and cairo will be detected automatically. 164 They can be force on/off'ed with their --with options, 165 166 - icu and graphite2 are default off, can be enabled with their --with 167 options, 168 169 Moreover, ICU support is now build into a separate library: 170 libharfbuzz-icu.so, and a new harfbuzz-icu.pc is shipped for it. 171 Distros can enable ICU now without every application on earth 172 getting linked to via libharfbuzz.so. 173 174 For distros I recommend that they make sure they are building --with-glib 175 --with-freetype --with-cairo, --with-icu, and optionally --with-graphite2; 176 And package harfbuzz and harfbuzz-icu separately. 177 178 179 Overview of changes leading to 0.9.17 180 Monday, May 20, 2013 181 ===================================== 182 183 - Build fixes. 184 - Fix bug in hb_set_get_min(). 185 - Fix regression with Arabic mark positioning / width-zeroing. 186 187 Overview of changes leading to 0.9.16 188 Friday, April 19, 2013 189 ===================================== 190 191 - Major speedup in OpenType lookup processing. With the Amiri 192 Arabic font, this release is over 3x faster than previous 193 release. All scripts / languages should see this speedup. 194 195 - New --num-iterations option for hb-shape / hb-view; useful for 196 profiling. 197 198 Overview of changes leading to 0.9.15 199 Friday, April 05, 2013 200 ===================================== 201 202 - Build fixes. 203 - Fix crasher in graphite2 shaper. 204 - Fix Arabic mark width zeroing regression. 205 - Don't compose Hangul jamo into Unicode syllables. 206 207 208 Overview of changes leading to 0.9.14 209 Thursday, March 21, 2013 210 ===================================== 211 212 - Build fixes. 213 - Fix time-consuming sanitize with malicious fonts. 214 - Implement hb_buffer_deserialize_glyphs() for both json and text. 215 - Do not ignore Hangul filler characters. 216 - Indic fixes: 217 * Fix Malayalam pre-base reordering interaction with post-forms. 218 * Further adjust ZWJ handling. Should fix known regressions from 219 0.9.13. 220 221 222 Overview of changes leading to 0.9.13 223 Thursday, February 25, 2013 224 ===================================== 225 226 - Build fixes. 227 - Ngapi HarfBuzz Hackfest in London (February 2013): 228 * Fixed all known Indic bugs, 229 * New Win8-style Myanmar shaper, 230 * New South-East Asian shaper for Tai Tham, Cham, and New Tai Lue, 231 * Smartly ignore Default_Ignorable characters (joiners, etc) wheb 232 matching GSUB/GPOS lookups, 233 * Fix 'Phags-Pa U+A872 shaping, 234 * Fix partial disabling of default-on features, 235 * Allow disabling of TrueType kerning. 236 - Fix possible crasher with broken fonts with overlapping tables. 237 - Removed generated files from git again. So, one needs ragel to 238 bootstrap from the git tree. 239 240 API changes: 241 - hb_shape() and related APIs now abort if buffer direction is 242 HB_DIRECTION_INVALID. Previously, hb_shape() was calling 243 hb_buffer_guess_segment_properties() on the buffer before 244 shaping. The heuristics in that function are fragile. If the 245 user really wants the old behvaior, they can call that function 246 right before calling hb_shape() to get the old behavior. 247 - hb_blob_create_sub_blob() always creates sub-blob with 248 HB_MEMORY_MODE_READONLY. See comments for the reason. 249 250 251 Overview of changes leading to 0.9.12 252 Thursday, January 18, 2013 253 ===================================== 254 255 - Build fixes for Sun compiler. 256 - Minor bug fix. 257 258 Overview of changes leading to 0.9.11 259 Thursday, January 10, 2013 260 ===================================== 261 262 - Build fixes. 263 - Fix GPOS mark attachment with null Anchor offsets. 264 - [Indic] Fix old-spec reordering of viramas if sequence ends in one. 265 - Fix multi-threaded shaper data creation crash. 266 - Add atomic ops for Solaris. 267 268 API changes: 269 - Rename hb_buffer_clear() to hb_buffer_clear_contents(). 270 271 272 Overview of changes leading to 0.9.10 273 Thursday, January 3, 2013 274 ===================================== 275 276 - [Indic] Fixed rendering of Malayalam dot-reph 277 - Updated OT language tags. 278 - Updated graphite2 backend. 279 - Improved hb_ot_layout_get_size_params() logic. 280 - Improve hb-shape/hb-view help output. 281 - Fixed hb-set.h implementation to not crash. 282 - Fixed various issues with hb_ot_layout_collect_lookups(). 283 - Various build fixes. 284 285 New API: 286 287 hb_graphite2_face_get_gr_face() 288 hb_graphite2_font_get_gr_font() 289 hb_coretext_face_get_cg_font() 290 291 Modified API: 292 293 hb_ot_layout_get_size_params() 294 295 296 Overview of changes leading to 0.9.9 297 Wednesday, December 5, 2012 298 ==================================== 299 300 - Fix build on Windows. 301 - Minor improvements. 302 303 304 Overview of changes leading to 0.9.8 305 Tuesday, December 4, 2012 306 ==================================== 307 308 309 - Actually implement hb_shape_plan_get_shaper (). 310 - Make UCDB data tables const. 311 - Lots of internal refactoring in OTLayout tables. 312 - Flesh out hb_ot_layout_lookup_collect_glyphs(). 313 314 New API: 315 316 hb_ot_layout_collect_lookups() 317 hb_ot_layout_get_size_params() 318 319 320 Overview of changes leading to 0.9.7 321 Sunday, November 21, 2012 322 ==================================== 323 324 325 HarfBuzz "All-You-Can-Eat-Sushi" (aka Vancouver) Hackfest and follow-on fixes. 326 327 - Fix Arabic contextual joining using pre-context text. 328 - Fix Sinhala "split matra" mess. 329 - Fix Khmer shaping with broken fonts. 330 - Implement Thai "PUA" shaping for old fonts. 331 - Do NOT route Kharoshthi script through the Indic shaper. 332 - Disable fallback positioning for Indic and Thai shapers. 333 - Misc fixes. 334 335 336 hb-shape / hb-view changes: 337 338 - Add --text-before and --text-after 339 - Add --bot / --eot / --preserve-default-ignorables 340 - hb-shape --output-format=json 341 342 343 New API: 344 345 hb_buffer_clear() 346 347 hb_buffer_flags_t 348 349 HB_BUFFER_FLAGS_DEFAULT 350 HB_BUFFER_FLAG_BOT 351 HB_BUFFER_FLAG_EOT 352 HB_BUFFER_FLAG_PRESERVE_DEFAULT_IGNORABLES 353 354 hb_buffer_set_flags() 355 hb_buffer_get_flags() 356 357 HB_BUFFER_SERIALIZE_FLAGS 358 hb_buffer_serialize_glyphs() 359 hb_buffer_deserialize_glyphs() 360 hb_buffer_serialize_list_formats() 361 362 hb_set_add_range() 363 hb_set_del_range() 364 hb_set_get_population() 365 hb_set_next_range() 366 367 hb_face_[sg]et_glyph_count() 368 369 hb_segment_properties_t 370 HB_SEGMENT_PROPERTIES_DEFAULT 371 hb_segment_properties_equal() 372 hb_segment_properties_hash() 373 374 hb_buffer_set_segment_properties() 375 hb_buffer_get_segment_properties() 376 377 hb_ot_layout_glyph_class_t 378 hb_ot_layout_get_glyph_class() 379 hb_ot_layout_get_glyphs_in_class() 380 381 hb_shape_plan_t 382 hb_shape_plan_create() 383 hb_shape_plan_create_cached() 384 hb_shape_plan_get_empty() 385 hb_shape_plan_reference() 386 hb_shape_plan_destroy() 387 hb_shape_plan_set_user_data() 388 hb_shape_plan_get_user_data() 389 hb_shape_plan_execute() 390 hb_shape_plan_get_shaper() 391 392 hb_ot_shape_plan_collect_lookups() 393 394 395 API changes: 396 397 - Remove "mask" parameter from hb_buffer_add(). 398 - Rename hb_ot_layout_would_substitute_lookup() and hb_ot_layout_substitute_closure_lookup(). 399 - hb-set.h API const correction. 400 - Renamed hb_set_min/max() to hb_set_get_min/max(). 401 - Rename hb_ot_layout_feature_get_lookup_indexes() to hb_ot_layout_feature_get_lookups(). 402 - Rename hb_buffer_guess_properties() to hb_buffer_guess_segment_properties(). 403 404 405 406 Overview of changes leading to 0.9.6 407 Sunday, November 13, 2012 408 ==================================== 409 410 - Don't clear pre-context text if no new context is provided. 411 - Fix ReverseChainingSubstLookup, which was totally borked. 412 - Adjust output format of hb-shape a bit. 413 - Include config.h.in in-tree. Makes it easier for alternate build systems. 414 - Fix hb_buffer_set_length(buffer, 0) invalid memory allocation. 415 - Use ICU LayoutEngine's C API instead of C++. Avoids much headache. 416 - Drop glyphs for all of Unicode Default_Ignorable characters. 417 - Misc build fixes. 418 419 Arabic shaper: 420 - Enable 'dlig' and 'mset' features in Arabic shaper. 421 - Implement 'Phags-pa shaping, improve Mongolian. 422 423 Indic shaper: 424 - Decompose Sinhala split matras the way old HarfBuzz / Pango did. 425 - Initial support for Consonant Medials. 426 - Start adding new-style Myanmar shaping. 427 - Make reph and 'pref' logic introspect the font. 428 - Route Meetei-Mayek through the Indic shaper. 429 - Don't apply 'liga' in Indic shaper. 430 - Improve Malayalam pre-base reordering Ra interaction with Chillus. 431 432 433 434 Overview of changes leading to 0.9.5 435 Sunday, October 14, 2012 436 ==================================== 437 438 - Synthetic-GSUB Arabic fallback shaping. 439 440 - Misc Indic improvements. 441 442 - Add build system support for pthread. 443 444 - Imported UCDN for in-tree Unicode callbacks implementation. 445 446 - Context-aware Arabic joining. 447 448 - Misc other fixes. 449 450 - New API: 451 452 hb_feature_to/from-string() 453 hb_buffer_[sg]et_content_type() 454 455 456 457 Overview of changes leading to 0.9.4 458 Tuesday, Sep 03, 2012 459 ==================================== 460 461 - Indic improvements with old-spec Malayalam. 462 463 - Better fallback glyph positioning, specially with Thai / Lao marks. 464 465 - Implement dotted-circle insertion. 466 467 - Better Arabic fallback shaping / ligation. 468 469 - Added ICU LayoutEngine backend for testing. Call it by the 'icu_le' name. 470 471 - Misc fixes. 472 473 474 475 Overview of changes leading to 0.9.3 476 Friday, Aug 18, 2012 477 ==================================== 478 479 - Fixed fallback mark positioning for left-to-right text. 480 481 - Improve mark positioning for the remaining combining classes. 482 483 - Unbreak Thai and fallback Arabic shaping. 484 485 - Port Arabic shaper to shape-plan caching. 486 487 - Use new ICU normalizer functions. 488 489 490 491 Overview of changes leading to 0.9.2 492 Friday, Aug 10, 2012 493 ==================================== 494 495 - Over a thousand commits! This is the first major release of HarfBuzz. 496 497 - HarfBuzz is feature-complete now! It should be in par, or better, than 498 both Pango's shapers and old HarfBuzz / Qt shapers. 499 500 - New Indic shaper, supporting main Indic scripts, Sinhala, and Khmer. 501 502 - Improved Arabic shaper, with fallback Arabic shaping, supporting Arabic, 503 Sinhala, N'ko, Mongolian, and Mandaic. 504 505 - New Thai / Lao shaper. 506 507 - Tibetan / Hangul support in the generic shaper. 508 509 - Synthetic GDEF support for fonts without a GDEF table. 510 511 - Fallback mark positioning for fonts without a GPOS table. 512 513 - Unicode normalization shaping heuristic during glyph mapping. 514 515 - New experimental Graphite2 backend. 516 517 - New Uniscribe backend (primarily for testing). 518 519 - New CoreText backend (primarily for testing). 520 521 - Major optimization and speedup. 522 523 - Test suites and testing infrastructure (work in progress). 524 525 - Greatly improved hb-view cmdline tool. 526 527 - hb-shape cmdline tool. 528 529 - Unicode 6.1 support. 530 531 Summary of API changes: 532 533 o Changed API: 534 535 - Users are expected to only include main header files now (ie. hb.h, 536 hb-glib.h, hb-ft.h, ...) 537 538 - All struct tag names had their initial underscore removed. 539 Ie. "struct _hb_buffer_t" is "struct hb_buffer_t" now. 540 541 - All set_user_data() functions now take a "replace" boolean parameter. 542 543 - hb_buffer_create() takes zero arguments now. 544 Use hb_buffer_pre_allocate() to pre-allocate. 545 546 - hb_buffer_add_utf*() now accept -1 for length parameteres, 547 meaning "nul-terminated". 548 549 - hb_direction_t enum values changed. 550 551 - All *_from_string() APIs now take a length parameter to allow for 552 non-nul-terminated strings. A -1 length means "nul-terminated". 553 554 - Typedef for hb_language_t changed. 555 556 - hb_get_table_func_t renamed to hb_reference_table_func_t. 557 558 - hb_ot_layout_table_choose_script() 559 560 - Various renames in hb-unicode.h. 561 562 o New API: 563 564 - hb_buffer_guess_properties() 565 Automatically called by hb_shape(). 566 567 - hb_buffer_normalize_glyphs() 568 569 - hb_tag_from_string() 570 571 - hb-coretext.h 572 573 - hb-uniscribe.h 574 575 - hb_face_reference_blob() 576 - hb_face_[sg]et_index() 577 - hb_face_set_upem() 578 579 - hb_font_get_glyph_name_func_t 580 hb_font_get_glyph_from_name_func_t 581 hb_font_funcs_set_glyph_name_func() 582 hb_font_funcs_set_glyph_from_name_func() 583 hb_font_get_glyph_name() 584 hb_font_get_glyph_from_name() 585 hb_font_glyph_to_string() 586 hb_font_glyph_from_string() 587 588 - hb_font_set_funcs_data() 589 590 - hb_ft_font_set_funcs() 591 - hb_ft_font_get_face() 592 593 - hb-gobject.h (work in progress) 594 595 - hb_ot_shape_glyphs_closure() 596 hb_ot_layout_substitute_closure_lookup() 597 598 - hb-set.h 599 600 - hb_shape_full() 601 602 - hb_unicode_combining_class_t 603 604 - hb_unicode_compose_func_t 605 hb_unicode_decompose_func_t 606 hb_unicode_decompose_compatibility_func_t 607 hb_unicode_funcs_set_compose_func() 608 hb_unicode_funcs_set_decompose_func() 609 hb_unicode_funcs_set_decompose_compatibility_func() 610 hb_unicode_compose() 611 hb_unicode_decompose() 612 hb_unicode_decompose_compatibility() 613 614 o Removed API: 615 616 - hb_ft_get_font_funcs() 617 618 - hb_ot_layout_substitute_start() 619 hb_ot_layout_substitute_lookup() 620 hb_ot_layout_substitute_finish() 621 hb_ot_layout_position_start() 622 hb_ot_layout_position_lookup() 623 hb_ot_layout_position_finish() 624 625 626 627 Overview of changes leading to 0.6.0 628 Friday, May 27, 2011 629 ==================================== 630 631 - Vertical text support in GPOS 632 - Almost all API entries have unit tests now, under test/ 633 - All thread-safety issues are fixed 634 635 Summary of API changes follows. 636 637 638 * Simple Types API: 639 640 o New API: 641 HB_LANGUAGE_INVALID 642 hb_language_get_default() 643 hb_direction_to_string() 644 hb_direction_from_string() 645 hb_script_get_horizontal_direction() 646 HB_UNTAG() 647 648 o Renamed API: 649 hb_category_t renamed to hb_unicode_general_category_t 650 651 o Changed API: 652 hb_language_t is a typed pointers now 653 654 o Removed API: 655 HB_TAG_STR() 656 657 658 * Use ISO 15924 tags for hb_script_t: 659 660 o New API: 661 hb_script_from_iso15924_tag() 662 hb_script_to_iso15924_tag() 663 hb_script_from_string() 664 665 o Changed API: 666 HB_SCRIPT_* enum members changed value. 667 668 669 * Buffer API streamlined: 670 671 o New API: 672 hb_buffer_reset() 673 hb_buffer_set_length() 674 hb_buffer_allocation_successful() 675 676 o Renamed API: 677 hb_buffer_ensure() renamed to hb_buffer_pre_allocate() 678 hb_buffer_add_glyph() renamed to hb_buffer_add() 679 680 o Removed API: 681 hb_buffer_clear() 682 hb_buffer_clear_positions() 683 684 o Changed API: 685 hb_buffer_get_glyph_infos() takes an out length parameter now 686 hb_buffer_get_glyph_positions() takes an out length parameter now 687 688 689 * Blob API streamlined: 690 691 o New API: 692 hb_blob_get_data() 693 hb_blob_get_data_writable() 694 695 o Renamed API: 696 hb_blob_create_empty() renamed to hb_blob_get_empty() 697 698 o Removed API: 699 hb_blob_lock() 700 hb_blob_unlock() 701 hb_blob_is_writable() 702 hb_blob_try_writable() 703 704 o Changed API: 705 hb_blob_create() takes user_data before destroy now 706 707 708 * Unicode functions API: 709 710 o Unicode function vectors can subclass other unicode function vectors now. 711 Unimplemented callbacks in the subclass automatically chainup to the parent. 712 713 o All hb_unicode_funcs_t callbacks take a user_data now. Their setters 714 take a user_data and its respective destroy callback. 715 716 o New API: 717 hb_unicode_funcs_get_empty() 718 hb_unicode_funcs_get_default() 719 hb_unicode_funcs_get_parent() 720 721 o Changed API: 722 hb_unicode_funcs_create() now takes a parent_funcs. 723 724 o Removed func getter functions: 725 hb_unicode_funcs_get_mirroring_func() 726 hb_unicode_funcs_get_general_category_func() 727 hb_unicode_funcs_get_script_func() 728 hb_unicode_funcs_get_combining_class_func() 729 hb_unicode_funcs_get_eastasian_width_func() 730 731 732 * Face API: 733 734 o Renamed API: 735 hb_face_get_table() renamed to hb_face_reference_table() 736 hb_face_create_for_data() renamed to hb_face_create() 737 738 o Changed API: 739 hb_face_create_for_tables() takes user_data before destroy now 740 hb_face_reference_table() returns empty blob instead of NULL 741 hb_get_table_func_t accepts the face as first parameter now 742 743 * Font API: 744 745 o Fonts can subclass other fonts now. Unimplemented callbacks in the 746 subclass automatically chainup to the parent. When chaining up, 747 scale is adjusted if the parent font has a different scale. 748 749 o All hb_font_funcs_t callbacks take a user_data now. Their setters 750 take a user_data and its respective destroy callback. 751 752 o New API: 753 hb_font_get_parent() 754 hb_font_funcs_get_empty() 755 hb_font_create_sub_font() 756 757 o Removed API: 758 hb_font_funcs_copy() 759 hb_font_unset_funcs() 760 761 o Removed func getter functions: 762 hb_font_funcs_get_glyph_func() 763 hb_font_funcs_get_glyph_advance_func() 764 hb_font_funcs_get_glyph_extents_func() 765 hb_font_funcs_get_contour_point_func() 766 hb_font_funcs_get_kerning_func() 767 768 o Changed API: 769 hb_font_create() takes a face and references it now 770 hb_font_set_funcs() takes user_data before destroy now 771 hb_font_set_scale() accepts signed integers now 772 hb_font_get_contour_point_func_t now takes glyph first, then point_index 773 hb_font_get_glyph_func_t returns a success boolean now 774 775 776 * Changed object model: 777 778 o All object types have a _get_empty() now: 779 hb_blob_get_empty() 780 hb_buffer_get_empty() 781 hb_face_get_empty() 782 hb_font_get_empty() 783 hb_font_funcs_get_empty() 784 hb_unicode_funcs_get_empty() 785 786 o Added _set_user_data() and _get_user_data() for all object types: 787 hb_blob_get_user_data() 788 hb_blob_set_user_data() 789 hb_buffer_get_user_data() 790 hb_buffer_set_user_data() 791 hb_face_get_user_data() 792 hb_face_set_user_data() 793 hb_font_funcs_get_user_data() 794 hb_font_funcs_set_user_data() 795 hb_font_get_user_data() 796 hb_font_set_user_data() 797 hb_unicode_funcs_get_user_data() 798 hb_unicode_funcs_set_user_data() 799 800 o Removed the _get_reference_count() from all object types: 801 hb_blob_get_reference_count() 802 hb_buffer_get_reference_count() 803 hb_face_get_reference_count() 804 hb_font_funcs_get_reference_count() 805 hb_font_get_reference_count() 806 hb_unicode_funcs_get_reference_count() 807 808 o Added _make_immutable() and _is_immutable() for all object types except for buffer: 809 hb_blob_make_immutable() 810 hb_blob_is_immutable() 811 hb_face_make_immutable() 812 hb_face_is_immutable() 813 814 815 * Changed API for vertical text support 816 817 o The following callbacks where removed: 818 hb_font_get_glyph_advance_func_t 819 hb_font_get_kerning_func_t 820 821 o The following new callbacks added instead: 822 hb_font_get_glyph_h_advance_func_t 823 hb_font_get_glyph_v_advance_func_t 824 hb_font_get_glyph_h_origin_func_t 825 hb_font_get_glyph_v_origin_func_t 826 hb_font_get_glyph_h_kerning_func_t 827 hb_font_get_glyph_v_kerning_func_t 828 829 o The following API removed as such: 830 hb_font_funcs_set_glyph_advance_func() 831 hb_font_funcs_set_kerning_func() 832 hb_font_get_glyph_advance() 833 hb_font_get_kerning() 834 835 o New API added instead: 836 hb_font_funcs_set_glyph_h_advance_func() 837 hb_font_funcs_set_glyph_v_advance_func() 838 hb_font_funcs_set_glyph_h_origin_func() 839 hb_font_funcs_set_glyph_v_origin_func() 840 hb_font_funcs_set_glyph_h_kerning_func() 841 hb_font_funcs_set_glyph_v_kerning_func() 842 hb_font_get_glyph_h_advance() 843 hb_font_get_glyph_v_advance() 844 hb_font_get_glyph_h_origin() 845 hb_font_get_glyph_v_origin() 846 hb_font_get_glyph_h_kerning() 847 hb_font_get_glyph_v_kerning() 848 849 o The following higher-leve API added for convenience: 850 hb_font_get_glyph_advance_for_direction() 851 hb_font_get_glyph_origin_for_direction() 852 hb_font_add_glyph_origin_for_direction() 853 hb_font_subtract_glyph_origin_for_direction() 854 hb_font_get_glyph_kerning_for_direction() 855 hb_font_get_glyph_extents_for_origin() 856 hb_font_get_glyph_contour_point_for_origin() 857 858 859 * OpenType Layout API: 860 861 o New API: 862 hb_ot_layout_position_start() 863 hb_ot_layout_substitute_start() 864 hb_ot_layout_substitute_finish() 865 866 867 * Glue code: 868 869 o New API: 870 hb_glib_script_to_script() 871 hb_glib_script_from_script() 872 hb_icu_script_to_script() 873 hb_icu_script_from_script() 874 875 876 * Version API added: 877 878 o New API: 879 HB_VERSION_MAJOR 880 HB_VERSION_MINOR 881 HB_VERSION_MICRO 882 HB_VERSION_STRING 883 HB_VERSION_CHECK() 884 hb_version() 885 hb_version_string() 886 hb_version_check() 887 888 889
