Behdad Esfahbod | 4941e95 | 2018-12-20 21:48:57 -0500 | [diff] [blame] | 1 | Overview of changes leading to 2.3.0 |
| 2 | Thursday, December 20, 2018 |
| 3 | ==================================== |
| 4 | - Fix regression on big-endian architectures. Ouch! |
| 5 | - Misc bug and build fixes. |
| 6 | - Fix subsetting of simple GSUB/GDEF. |
| 7 | - Merge CFF / CFF2 support contributed by Adobe. This mostly involves |
| 8 | the subsetter, but also get_glyph_extents on CFF fonts. |
| 9 | |
| 10 | New API in hb-aat.h: |
| 11 | +hb_aat_layout_has_substitution() |
| 12 | +hb_aat_layout_has_positioning() |
| 13 | +hb_aat_layout_has_tracking() |
| 14 | |
| 15 | |
Behdad Esfahbod | dc41ece | 2018-11-29 11:53:53 -0500 | [diff] [blame] | 16 | Overview of changes leading to 2.2.0 |
| 17 | Thursday, November 29, 2018 |
| 18 | ==================================== |
| 19 | - Misc shaping bug fixes. |
| 20 | - Add font variations named-instance API. |
| 21 | - Deprecate font variations axis enumeration API and add replacement. |
| 22 | - AAT shaping improvements: |
| 23 | o Fixed 'kern' table Format 2 implementation. |
| 24 | o Implement 'feat' table API for feature detection. |
| 25 | o Blacklist 'GSUB' table of fonts from 'MUTF' foundry that also have 'morx'. |
| 26 | |
| 27 | New API: |
| 28 | +hb_aat_layout_feature_type_t |
| 29 | +hb_aat_layout_feature_selector_t |
| 30 | +hb_aat_layout_get_feature_types() |
| 31 | +hb_aat_layout_feature_type_get_name_id |
| 32 | +hb_aat_layout_feature_selector_info_t |
| 33 | +HB_AAT_LAYOUT_NO_SELECTOR_INDEX |
| 34 | +hb_aat_layout_feature_type_get_selector_infos() |
| 35 | +hb_ot_var_axis_flags_t |
| 36 | +hb_ot_var_axis_info_t |
| 37 | +hb_ot_var_get_axis_infos() |
| 38 | +hb_ot_var_find_axis_info() |
| 39 | +hb_ot_var_get_named_instance_count() |
| 40 | +hb_ot_var_named_instance_get_subfamily_name_id() |
| 41 | +hb_ot_var_named_instance_get_postscript_name_id() |
| 42 | +hb_ot_var_named_instance_get_design_coords() |
| 43 | |
| 44 | Deprecated API: |
| 45 | +HB_OT_VAR_NO_AXIS_INDEX |
| 46 | +hb_ot_var_axis_t |
| 47 | +hb_ot_var_get_axes() |
| 48 | +hb_ot_var_find_axis() |
| 49 | |
| 50 | |
Behdad Esfahbod | e3a1a83 | 2018-11-16 16:53:25 -0800 | [diff] [blame] | 51 | Overview of changes leading to 2.1.3 |
| 52 | Friday, November 16, 2018 |
| 53 | ==================================== |
| 54 | - Fix AAT 'mort' shaping, which was broken in 2.1.2 |
| 55 | |
| 56 | |
Behdad Esfahbod | fdb29ab | 2018-11-16 15:38:11 -0800 | [diff] [blame] | 57 | Overview of changes leading to 2.1.2 |
| 58 | Friday, November 16, 2018 |
| 59 | ==================================== |
| 60 | - Various internal changes. |
| 61 | - AAT shaping improvements: |
| 62 | o Implement kern table Format 1 state-machine-based kerning. |
| 63 | o Implement cross-stream kerning (cursive positioning, etc). |
| 64 | o Ignore emptyish GSUB tables (zero scripts) if morx present. |
| 65 | o Don't apply GPOS if morx is being applied. Matches Apple. |
| 66 | |
| 67 | |
| 68 | -Overview of changes leading to 2.1.1 |
Behdad Esfahbod | 8be74d8 | 2018-11-05 18:47:22 -0500 | [diff] [blame] | 69 | Monday, November 5, 2018 |
| 70 | ==================================== |
| 71 | - AAT improvements: |
| 72 | o Implement 'mort' table. |
| 73 | o Implement 'kern' subtables Format 1 and Format 3. |
| 74 | |
| 75 | |
Behdad Esfahbod | 1019391 | 2018-10-30 15:52:26 -0700 | [diff] [blame] | 76 | Overview of changes leading to 2.1.0 |
| 77 | Tuesday, October 30, 2018 |
| 78 | ==================================== |
| 79 | - AAT shaping improvements: |
| 80 | o Allow user controlling AAT features, for whole buffer only currently. |
| 81 | o Several 'morx' fixes. |
| 82 | o Implement tuple-kerns in 'kerx'; Fixes kerning with Apple default |
| 83 | San Francisco fonts. |
| 84 | - Support for color fonts: |
| 85 | o COLR/CPAL API to fetch color layers. |
| 86 | o SVG table to fetch SVG documents. |
| 87 | o CBDT/sbix API to fetch PNG images. |
| 88 | - New 'name' table API. |
| 89 | - hb-ot-font now uses 'VORG' table to correctly position CFF glyphs |
| 90 | in vertical layout. |
| 91 | - Various fuzzer-found bug fixes. |
| 92 | |
| 93 | Changed API: |
| 94 | |
| 95 | A type and a macro added in 2.0.0 were renamed: |
| 96 | |
| 97 | hb_name_id_t -> hb_ot_name_id_t |
| 98 | HB_NAME_ID_INVALID -> HB_OT_NAME_ID_INVALID |
| 99 | |
| 100 | New API: |
| 101 | |
| 102 | +hb_color_t |
| 103 | +HB_COLOR |
| 104 | +hb_color_get_alpha() |
| 105 | +hb_color_get_red() |
| 106 | +hb_color_get_green() |
| 107 | +hb_color_get_blue() |
| 108 | +hb_ot_color_has_palettes() |
| 109 | +hb_ot_color_palette_get_count() |
| 110 | +hb_ot_color_palette_get_name_id() |
| 111 | +hb_ot_color_palette_color_get_name_id() |
| 112 | +hb_ot_color_palette_flags_t |
| 113 | +hb_ot_color_palette_get_flags() |
| 114 | +hb_ot_color_palette_get_colors() |
| 115 | +hb_ot_color_has_layers() |
| 116 | +hb_ot_color_layer_t |
| 117 | +hb_ot_color_glyph_get_layers() |
| 118 | +hb_ot_color_has_svg() |
| 119 | +hb_ot_color_glyph_reference_svg() |
| 120 | +hb_ot_color_has_png() |
| 121 | +hb_ot_color_glyph_reference_png() |
| 122 | |
| 123 | +hb_ot_name_id_t |
| 124 | +HB_OT_NAME_ID_INVALID |
| 125 | +HB_OT_NAME_ID_COPYRIGHT |
| 126 | +HB_OT_NAME_ID_FONT_FAMILY |
| 127 | +HB_OT_NAME_ID_FONT_SUBFAMILY |
| 128 | +HB_OT_NAME_ID_UNIQUE_ID |
| 129 | +HB_OT_NAME_ID_FULL_NAME |
| 130 | +HB_OT_NAME_ID_VERSION_STRING |
| 131 | +HB_OT_NAME_ID_POSTSCRIPT_NAME |
| 132 | +HB_OT_NAME_ID_TRADEMARK |
| 133 | +HB_OT_NAME_ID_MANUFACTURER |
| 134 | +HB_OT_NAME_ID_DESIGNER |
| 135 | +HB_OT_NAME_ID_DESCRIPTION |
| 136 | +HB_OT_NAME_ID_VENDOR_URL |
| 137 | +HB_OT_NAME_ID_DESIGNER_URL |
| 138 | +HB_OT_NAME_ID_LICENSE |
| 139 | +HB_OT_NAME_ID_LICENSE_URL |
| 140 | +HB_OT_NAME_ID_TYPOGRAPHIC_FAMILY |
| 141 | +HB_OT_NAME_ID_TYPOGRAPHIC_SUBFAMILY |
| 142 | +HB_OT_NAME_ID_MAC_FULL_NAME |
| 143 | +HB_OT_NAME_ID_SAMPLE_TEXT |
| 144 | +HB_OT_NAME_ID_CID_FINDFONT_NAME |
| 145 | +HB_OT_NAME_ID_WWS_FAMILY |
| 146 | +HB_OT_NAME_ID_WWS_SUBFAMILY |
| 147 | +HB_OT_NAME_ID_LIGHT_BACKGROUND |
| 148 | +HB_OT_NAME_ID_DARK_BACKGROUND |
| 149 | +HB_OT_NAME_ID_VARIATIONS_PS_PREFIX |
| 150 | +hb_ot_name_entry_t |
| 151 | +hb_ot_name_list_names() |
| 152 | +hb_ot_name_get_utf8() |
| 153 | +hb_ot_name_get_utf16() |
| 154 | +hb_ot_name_get_utf32() |
| 155 | |
| 156 | |
Behdad Esfahbod | 0a3b7a0 | 2018-10-20 13:14:07 -0700 | [diff] [blame] | 157 | Overview of changes leading to 2.0.2 |
| 158 | Saturday, October 20, 2018 |
| 159 | ==================================== |
| 160 | - Fix two minor memory access issues in AAT tables. |
| 161 | |
| 162 | |
Behdad Esfahbod | 7c2c8ac | 2018-10-19 19:37:46 -0700 | [diff] [blame] | 163 | Overview of changes leading to 2.0.1 |
| 164 | Friday, October 19, 2018 |
| 165 | ==================================== |
| 166 | - Fix hb-version.h reported release version that went wrong (1.8.0) |
| 167 | with previous release. |
| 168 | - Fix extrapolation in 'trak' table. |
| 169 | - Fix hb-font infinite-recursion issue with some font funcs and |
| 170 | subclassed fonts. |
| 171 | - Implement variation-kerning format in kerx table, although without |
| 172 | variation. |
| 173 | - Fix return value of hb_map_is_empty(). |
| 174 | |
| 175 | |
Behdad Esfahbod | 3d9a030 | 2018-10-18 05:58:17 -0700 | [diff] [blame] | 176 | Overview of changes leading to 2.0.0 |
Behdad Esfahbod | 7c2c8ac | 2018-10-19 19:37:46 -0700 | [diff] [blame] | 177 | Thursday, October 18, 2018 |
Behdad Esfahbod | 3d9a030 | 2018-10-18 05:58:17 -0700 | [diff] [blame] | 178 | ==================================== |
| 179 | - Added AAT shaping support (morx/kerx/trak). |
| 180 | Automatically used if GSUB/GPOS are not available respectively. |
| 181 | Set HB_OPTIONS=aat env var to have morx/kerx preferred over |
| 182 | GSUB/GPOS. |
| 183 | - Apply TrueType kern table internally, instead of relying on |
| 184 | hb_font_t callbacks. |
| 185 | - Khmer shaper significantly rewritten to better match Uniscribe. |
| 186 | - Indic3 tags ('dev3', etc) are passed to USE shaper. |
| 187 | - .dfont Mac font containers implemented. |
| 188 | - Script- and language-mapping revamped to better use BCP 47. |
| 189 | - Misc USE and Indic fixes. |
| 190 | - Misc everything fixes. |
| 191 | - Too many things to list. Biggest release since 0.9.1, with |
| 192 | over 500 commits in just over 5 weeks! Didn't intend it to |
| 193 | be a big release. Just happened to become. |
| 194 | - hb-ft now locks underlying FT_Face during use. |
| 195 | |
| 196 | API changes: |
| 197 | |
| 198 | - Newly-created hb_font_t's now have our internal "hb-ot-font" |
| 199 | callbacks set on them, so they should work out of the box |
| 200 | without any callbacks set. If callbacks are set, everything |
| 201 | is back to what it was before, the fallback callbacks are |
| 202 | null. If you to get the internal implementation modified, |
| 203 | sub_font it. |
| 204 | |
| 205 | - New hb_font_funcs_set_nominal_glyphs_func() allows speeding |
| 206 | up character to glyph mapping. |
| 207 | |
| 208 | New API: |
| 209 | +HB_FEATURE_GLOBAL_START |
| 210 | +HB_FEATURE_GLOBAL_END |
| 211 | +hb_buffer_set_invisible_glyph() |
| 212 | +hb_buffer_get_invisible_glyph() |
| 213 | +hb_font_funcs_set_nominal_glyphs_func() |
| 214 | +hb_ot_layout_table_select_script() |
| 215 | +hb_ot_layout_script_select_language() |
| 216 | +hb_ot_layout_feature_get_name_ids() |
| 217 | +hb_ot_layout_feature_get_characters() |
| 218 | +hb_name_id_t |
| 219 | +HB_NAME_ID_INVALID |
| 220 | +HB_OT_MAX_TAGS_PER_SCRIPT |
| 221 | +hb_ot_tags_from_script_and_language() |
| 222 | +hb_ot_tags_to_script_and_language() |
| 223 | |
| 224 | Deprecated API: |
| 225 | -hb_font_funcs_set_glyph_func() |
| 226 | -hb_unicode_eastasian_width_func_t |
| 227 | -hb_unicode_funcs_set_eastasian_width_func() |
| 228 | -hb_unicode_eastasian_width() |
| 229 | -hb_unicode_decompose_compatibility_func_t |
| 230 | -HB_UNICODE_MAX_DECOMPOSITION_LEN |
| 231 | -hb_unicode_funcs_set_decompose_compatibility_func() |
| 232 | -hb_unicode_decompose_compatibility() |
| 233 | -hb_font_funcs_set_glyph_h_kerning_func() |
| 234 | -hb_font_funcs_set_glyph_v_kerning_func() |
| 235 | -hb_font_get_glyph_h_kerning() |
| 236 | -hb_font_get_glyph_v_kerning() |
| 237 | -hb_font_get_glyph_kerning_for_direction() |
| 238 | -hb_ot_layout_table_choose_script() |
| 239 | -hb_ot_layout_script_find_language() |
| 240 | -hb_ot_tags_from_script() |
| 241 | -hb_ot_tag_from_language() |
| 242 | |
| 243 | |
Behdad Esfahbod | 54d332d | 2018-09-10 11:37:24 +0200 | [diff] [blame] | 244 | Overview of changes leading to 1.9.0 |
| 245 | Monday, September 10, 2018 |
| 246 | ==================================== |
| 247 | - Added 'cmap' API to hb_face_t. |
| 248 | - Face-builder API. |
| 249 | - hb-ot-font re-creation should be much leaner now, as the |
| 250 | font tables it uses are cached on hb_face_t now. |
| 251 | - Internal source header file name changes: |
| 252 | hb-*-private.hh is renamed to hb-*.hh. |
| 253 | |
| 254 | New API: |
| 255 | +HB_UNICODE_MAX |
| 256 | +hb_face_collect_unicodes() |
| 257 | +hb_face_collect_variation_selectors() |
| 258 | +hb_face_collect_variation_unicodes() |
| 259 | +hb_face_builder_create() |
| 260 | +hb_face_builder_add_table() |
| 261 | |
| 262 | |
Behdad Esfahbod | 63be5dc | 2018-08-14 10:59:34 -0700 | [diff] [blame] | 263 | Overview of changes leading to 1.8.8 |
| 264 | Tuesday, August 14, 2018 |
| 265 | ==================================== |
| 266 | - Fix hb-icu crash on architectures where compare_exchange_weak() can |
| 267 | fail falsely. This bug was introduced in 1.8.4. |
| 268 | https://bugs.chromium.org/p/chromium/issues/detail?id=873568 |
| 269 | - More internal refactoring of atomic operations and singletons. |
| 270 | - API changes: |
| 271 | The following functions do NOT reference their return value before |
| 272 | returning: |
| 273 | * hb_unicode_funcs_get_default() |
| 274 | * hb_glib_get_unicode_funcs() |
| 275 | * hb_icu_get_unicode_funcs() |
| 276 | This is consistent with their naming ("get", instead of "reference") |
| 277 | as well as how they are used in the wild (ie. no one calls destroy() |
| 278 | on their return value.) |
| 279 | |
| 280 | |
Behdad Esfahbod | b6fdcf4 | 2018-08-08 21:54:08 -0700 | [diff] [blame] | 281 | Overview of changes leading to 1.8.7 |
| 282 | Wednesday, August 8, 2018 |
| 283 | ==================================== |
| 284 | - Fix assertion failure with GDEF-blacklisted fonts. |
| 285 | |
| 286 | |
Behdad Esfahbod | e49a38b | 2018-08-07 09:55:42 -0700 | [diff] [blame] | 287 | Overview of changes leading to 1.8.6 |
| 288 | Tuesday, August 7, 2018 |
| 289 | ==================================== |
| 290 | - Internal code shuffling. |
| 291 | - New API to speed up getting advance widths for implementations |
| 292 | that have heavy overhead in get_h_advance callback: |
| 293 | +hb_font_funcs_set_glyph_h_advances_func |
| 294 | +hb_font_funcs_set_glyph_v_advances_func |
| 295 | +hb_font_get_glyph_advances_for_direction |
| 296 | +hb_font_get_glyph_h_advances |
| 297 | +hb_font_get_glyph_h_advances_func_t |
| 298 | +hb_font_get_glyph_v_advances |
| 299 | +hb_font_get_glyph_v_advances_func_t |
| 300 | |
| 301 | |
Behdad Esfahbod | 44d1fb3 | 2018-08-01 14:51:51 -0700 | [diff] [blame] | 302 | Overview of changes leading to 1.8.5 |
| 303 | Wednesday, August 1, 2018 |
| 304 | ==================================== |
| 305 | - Major Khmer shaper improvements to better match Microsoft. |
| 306 | - Indic bug fixes. |
| 307 | - Internal improvements to atomic operations. |
| 308 | |
| 309 | |
Behdad Esfahbod | 68310a6 | 2018-07-17 13:20:40 +0200 | [diff] [blame] | 310 | Overview of changes leading to 1.8.4 |
| 311 | Tuesday, July 17, 2018 |
| 312 | ==================================== |
| 313 | - Fix build on non-C++11. |
| 314 | - Use C++-style GCC atomics and C++11 atomics. |
| 315 | |
| 316 | |
Behdad Esfahbod | 2b76767 | 2018-07-11 15:27:13 +0200 | [diff] [blame] | 317 | Overview of changes leading to 1.8.3 |
| 318 | Wednesday, July 11, 2018 |
| 319 | ==================================== |
| 320 | - A couple of Indic / USE bug fixes. |
| 321 | - Disable vectorization, as it was causing unaligned access bus error on |
| 322 | certain 32bit architectures. |
| 323 | |
| 324 | |
Behdad Esfahbod | 343e8c6 | 2018-07-03 12:43:59 +0430 | [diff] [blame] | 325 | Overview of changes leading to 1.8.2 |
| 326 | Tuesday, July 3, 2018 |
| 327 | ==================================== |
| 328 | - Fix infinite loop in Khmer shaper. |
| 329 | - Improve hb_blob_create_from_file() for streams. |
| 330 | |
| 331 | |
Behdad Esfahbod | 3654d9b | 2018-06-12 19:38:04 -0400 | [diff] [blame] | 332 | Overview of changes leading to 1.8.1 |
| 333 | Tuesday, June 12, 2018 |
| 334 | ==================================== |
| 335 | - Fix hb-version.h file generation; last two releases went out with wrong ones. |
| 336 | - Add correctness bug in hb_set_t operations, introduced in 1.7.7. |
| 337 | - Remove HB_SUBSET_BUILTIN build option. Not necessary. |
| 338 | |
Behdad Esfahbod | 343e8c6 | 2018-07-03 12:43:59 +0430 | [diff] [blame] | 339 | |
Behdad Esfahbod | 37986aa | 2018-06-05 18:04:40 -0700 | [diff] [blame] | 340 | Overview of changes leading to 1.8.0 |
| 341 | Tuesday, June 5, 2018 |
| 342 | ==================================== |
| 343 | - Update to Unicode 11.0.0. |
| 344 | |
Behdad Esfahbod | 3654d9b | 2018-06-12 19:38:04 -0400 | [diff] [blame] | 345 | |
Behdad Esfahbod | df01f3e | 2018-06-05 15:17:39 -0700 | [diff] [blame] | 346 | Overview of changes leading to 1.7.7 |
| 347 | Tuesday, June 5, 2018 |
| 348 | ==================================== |
| 349 | - Lots of internal changes, but not yet exposed externally. |
| 350 | - All HarfBuzz objects are significantly smaller in size now. |
| 351 | - Sinhala: Position repha on top of post-consonant, not base. |
| 352 | This better matches Windows 10 behavior, which was changed |
| 353 | from previous Windows versions. |
| 354 | - New build options: |
| 355 | o New cpp macro HB_NO_ATEXIT |
| 356 | o New cpp macro HB_SUBSET_BUILTIN |
| 357 | - Significant libharfbuzz-subset changes. API subject to change. |
| 358 | - New API in libharfbuzz: |
| 359 | |
| 360 | +hb_blob_create_from_file() |
| 361 | +hb_face_count() |
| 362 | |
| 363 | A hashmap implementation: |
| 364 | +hb-map.h |
| 365 | +HB_MAP_VALUE_INVALID |
| 366 | +hb_map_t |
| 367 | +hb_map_create() |
| 368 | +hb_map_get_empty() |
| 369 | +hb_map_reference() |
| 370 | +hb_map_destroy() |
| 371 | +hb_map_set_user_data() |
| 372 | +hb_map_get_user_data() |
| 373 | +hb_map_allocation_successful() |
| 374 | +hb_map_clear() |
| 375 | +hb_map_is_empty() |
| 376 | +hb_map_get_population() |
| 377 | +hb_map_set() |
| 378 | +hb_map_get() |
| 379 | +hb_map_del() |
| 380 | +hb_map_has() |
| 381 | |
| 382 | |
Behdad Esfahbod | ff2f814 | 2018-03-07 16:05:14 +0100 | [diff] [blame] | 383 | Overview of changes leading to 1.7.6 |
| 384 | Wednesday, March 7, 2018 |
| 385 | ==================================== |
| 386 | |
| 387 | - Fix to hb_set_t binary operations. Ouch. |
| 388 | - New experimental harfbuzz-subset library. All of hb-subset.h |
| 389 | is experimental right now and API WILL change. |
| 390 | |
| 391 | - New API: |
| 392 | hb_blob_copy_writable_or_fail() |
| 393 | HB_OT_TAG_BASE |
| 394 | hb_set_previous() |
| 395 | hb_set_previous_range() |
| 396 | |
| 397 | |
Behdad Esfahbod | f0b700d | 2018-01-30 11:16:51 -0800 | [diff] [blame] | 398 | Overview of changes leading to 1.7.5 |
| 399 | Tuesday, January 30, 2018 |
| 400 | ==================================== |
| 401 | |
| 402 | - Separate Khmer shaper from Indic. |
| 403 | - First stab at AAT morx. Not hooked up. |
| 404 | - Misc bug fixes. |
| 405 | |
| 406 | |
Behdad Esfahbod | 007a2a4 | 2017-12-20 12:09:00 -0500 | [diff] [blame] | 407 | Overview of changes leading to 1.7.4 |
| 408 | Wednesday, December 20, 2017 |
| 409 | ==================================== |
| 410 | |
| 411 | - Fix collect_glyphs() regression caused by hb_set_t changes. |
| 412 | |
| 413 | |
Behdad Esfahbod | b5bbb79 | 2017-12-18 09:18:51 -0500 | [diff] [blame] | 414 | Overview of changes leading to 1.7.3 |
| 415 | Monday, December 18, 2017 |
| 416 | ==================================== |
| 417 | |
| 418 | - hb_set_t performance tuning and optimizations. |
| 419 | - Speed up collect_glyphs() and reject garbage data. |
| 420 | - In hb_coretext_font_create() set font point-size (ptem). |
| 421 | - Misc fixes. |
| 422 | |
| 423 | |
Behdad Esfahbod | 843f7f7 | 2017-12-04 08:52:39 -0800 | [diff] [blame] | 424 | Overview of changes leading to 1.7.2 |
| 425 | Monday, December 4, 2017 |
| 426 | ==================================== |
| 427 | |
| 428 | - Optimize hb_set_add_range(). |
| 429 | - Misc fixes. |
| 430 | - New API: |
| 431 | hb_coretext_font_create() |
| 432 | |
| 433 | |
Behdad Esfahbod | f93c6f8 | 2017-11-14 11:09:19 -0800 | [diff] [blame] | 434 | Overview of changes leading to 1.7.1 |
| 435 | Tuesday, November 14, 2017 |
| 436 | ==================================== |
| 437 | |
| 438 | - Fix atexit object destruction regression. |
| 439 | - Fix minor integer-overflow. |
| 440 | |
| 441 | |
Behdad Esfahbod | e5d7098 | 2017-11-13 09:42:37 -0800 | [diff] [blame] | 442 | Overview of changes leading to 1.7.0 |
| 443 | Monday, November 13, 2017 |
| 444 | ==================================== |
| 445 | |
| 446 | - Minor Indic fixes. |
| 447 | - Implement kerning and glyph names in hb-ot-font. |
| 448 | - Various DSO optimization re .data and .bss sizes. |
| 449 | - Make C++11 optional; build fixes. |
| 450 | - Mark all other backends "unsafe-to-break". |
| 451 | - Graphite fix. |
| 452 | |
| 453 | |
Behdad Esfahbod | 223686d | 2017-10-26 12:52:02 -0600 | [diff] [blame] | 454 | Overview of changes leading to 1.6.3 |
| 455 | Thursday, October 26th, 2017 |
| 456 | ==================================== |
| 457 | |
| 458 | - Fix hb_set_t some more. Should be solid now. |
| 459 | - Implement get_glyph_name() for hb-ot-font. |
| 460 | - Misc fixes. |
| 461 | |
| 462 | |
Behdad Esfahbod | 3b7388a | 2017-10-23 14:35:16 -0400 | [diff] [blame] | 463 | Overview of changes leading to 1.6.2 |
| 464 | Monday, October 23nd, 2017 |
| 465 | ==================================== |
| 466 | |
| 467 | - Yesterday's release had a bad crasher; don't use it. That's what |
| 468 | happens when one works on Sunday... |
ebraminio | 7c6937e | 2017-11-20 14:49:22 -0500 | [diff] [blame] | 469 | https://github.com/harfbuzz/harfbuzz/issues/578 |
Behdad Esfahbod | 3b7388a | 2017-10-23 14:35:16 -0400 | [diff] [blame] | 470 | - Build fixes for FreeBSD and Chrome Android. |
| 471 | |
| 472 | |
Behdad Esfahbod | 0ca915e | 2017-10-22 17:38:33 -0400 | [diff] [blame] | 473 | Overview of changes leading to 1.6.1 |
| 474 | Sunday, October 22nd, 2017 |
| 475 | ==================================== |
| 476 | |
| 477 | - Don't skip over COMBINING GRAPHEME JOINER when ligating, etc. |
ebraminio | 7c6937e | 2017-11-20 14:49:22 -0500 | [diff] [blame] | 478 | To be refined: https://github.com/harfbuzz/harfbuzz/issues/554 |
Behdad Esfahbod | 0ca915e | 2017-10-22 17:38:33 -0400 | [diff] [blame] | 479 | - Faster hb_set_t implementation. |
| 480 | - Don't use deprecated ICU API. |
| 481 | - Fix undefined-behavior in Myanmar shaper, introduced in 1.6.0 |
| 482 | - Deprecated API: |
| 483 | hb_set_invert() |
| 484 | |
| 485 | |
Behdad Esfahbod | 25846cc | 2017-10-13 16:30:33 +0200 | [diff] [blame] | 486 | Overview of changes leading to 1.6.0 |
| 487 | Friday, October the 13th, 2017 |
| 488 | ==================================== |
| 489 | |
| 490 | - Update to Unicode 10. |
| 491 | |
| 492 | - Various Indic and Universal Shaping Engine fixes as a result of |
| 493 | HarfBuzz Hackfest with Jonathan Kew at Web Engines Hackfest at |
| 494 | the Igalia offices in A Coruña, Spain. Thanks Igalia for having |
| 495 | us! |
| 496 | |
| 497 | - Implement Unicode Arabic Mark Ordering Algorithm UTR#53. |
| 498 | |
| 499 | - Implement optical sizing / tracking in CoreText backend, using |
| 500 | new API hb_font_set_ptem(). |
| 501 | |
| 502 | - Allow notifying hb_font_t that underlying FT_Face changed sizing, |
| 503 | using new API hb_ft_font_changed(). |
| 504 | |
| 505 | - More Graphite backend RTL fixes. |
| 506 | |
| 507 | - Fix caching of variable font shaping plans. |
| 508 | |
| 509 | - hb-view / hb-shape now accept following new arguments: |
| 510 | |
| 511 | o --unicodes: takes a list of hex numbers that represent Unicode |
| 512 | codepoints. |
| 513 | |
| 514 | New API: |
| 515 | +hb_face_get_table_tags() |
| 516 | +hb_font_set_ptem() |
| 517 | +hb_font_get_ptem() |
| 518 | +hb_ft_font_changed() |
| 519 | |
| 520 | |
Behdad Esfahbod | a984e0c | 2017-09-05 11:18:35 -0700 | [diff] [blame] | 521 | Overview of changes leading to 1.5.1 |
| 522 | Tuesday, September 5, 2017 |
| 523 | ==================================== |
| 524 | |
| 525 | - Fix "unsafe-to-break" in fallback shaping and other corner cases. |
| 526 | All our tests pass with --verify now, meaning unsafe-to-break API |
| 527 | works as expected. |
| 528 | - Add --unicodes to hb-view / hb-shape. |
| 529 | - [indic] Treat Consonant_With_Stacker as consonant. This will need |
| 530 | further tweaking. |
| 531 | - hb_buffer_diff() tweaks. |
| 532 | |
| 533 | |
Behdad Esfahbod | e8b364b | 2017-08-23 15:00:45 -0700 | [diff] [blame] | 534 | Overview of changes leading to 1.5.0 |
| 535 | Wednesday, August 23, 2017 |
| 536 | ==================================== |
| 537 | |
| 538 | - Misc new API, for appending a buffer to another, and for comparing |
| 539 | contents of two buffers for types of differences. |
| 540 | |
| 541 | - New "unsafe-to-break" API. Can be used to speed up reshaping |
| 542 | in line-breaking situations. Essentially, after shaping, it returns |
| 543 | positions in the input string (some of the cluster boundaries) that |
| 544 | are "safe to break" in that if the text is segmented at that position |
| 545 | and two sides reshaped and concatenated, the shaping result is |
| 546 | exactly the same as shaping the text in one piece. |
| 547 | |
| 548 | hb-view and hb-shape and hb-shape now take --verify, which verifies |
| 549 | the above property. |
| 550 | |
| 551 | Some corner cases of the implementation are still not quite working. |
| 552 | Those will be fixed in subsequent releases. |
| 553 | |
| 554 | - New API: |
| 555 | |
| 556 | hb_buffer_append() |
| 557 | |
| 558 | hb_glyph_flags_t |
| 559 | HB_GLYPH_FLAG_UNSAFE_TO_BREAK |
| 560 | HB_GLYPH_FLAG_DEFINED |
| 561 | hb_glyph_info_get_glyph_flags() |
| 562 | |
| 563 | HB_BUFFER_SERIALIZE_FLAG_GLYPH_FLAGS |
| 564 | |
| 565 | hb_buffer_diff_flags_t |
| 566 | HB_BUFFER_DIFF_FLAG_EQUAL |
| 567 | HB_BUFFER_DIFF_FLAG_CONTENT_TYPE_MISMATCH |
| 568 | HB_BUFFER_DIFF_FLAG_LENGTH_MISMATCH |
| 569 | HB_BUFFER_DIFF_FLAG_NOTDEF_PRESENT |
| 570 | HB_BUFFER_DIFF_FLAG_DOTTED_CIRCLE_PRESENT |
| 571 | HB_BUFFER_DIFF_FLAG_CODEPOINT_MISMATCH |
| 572 | HB_BUFFER_DIFF_FLAG_CLUSTER_MISMATCH |
| 573 | HB_BUFFER_DIFF_FLAG_GLYPH_FLAGS_MISMATCH |
| 574 | HB_BUFFER_DIFF_FLAG_POSITION_MISMATCH |
| 575 | hb_buffer_diff |
| 576 | |
| 577 | |
Behdad Esfahbod | 7917792 | 2017-08-08 13:17:03 -0700 | [diff] [blame] | 578 | Overview of changes leading to 1.4.8 |
| 579 | Tuesday, August 8, 2017 |
| 580 | ==================================== |
| 581 | |
| 582 | - Major fix to avar table handling. |
| 583 | - Rename hb-shape --show-message to --trace. |
| 584 | - Build fixes. |
| 585 | |
| 586 | |
Behdad Esfahbod | fc15e60 | 2017-07-18 11:24:42 -0700 | [diff] [blame] | 587 | Overview of changes leading to 1.4.7 |
| 588 | Tuesday, July 18, 2017 |
| 589 | ==================================== |
| 590 | |
| 591 | - Multiple Indic, Tibetan, and Cham fixes. |
| 592 | - CoreText: Allow disabling kerning. |
| 593 | - Adjust Arabic feature order again. |
| 594 | - Misc build fixes. |
| 595 | |
| 596 | |
Behdad Esfahbod | 141b33d | 2017-04-23 16:19:13 -0700 | [diff] [blame] | 597 | Overview of changes leading to 1.4.6 |
| 598 | Sunday, April 23, 2017 |
| 599 | ==================================== |
| 600 | |
| 601 | - Graphite2: Fix RTL positioning issue. |
| 602 | - Backlist GDEF of more versions of Padauk and Tahoma. |
| 603 | - New, experimental, cmake alternative build system. |
| 604 | |
| 605 | |
Behdad Esfahbod | 60e2586 | 2017-03-10 23:02:28 -0800 | [diff] [blame] | 606 | Overview of changes leading to 1.4.5 |
| 607 | Friday, March 10, 2017 |
| 608 | ==================================== |
| 609 | |
| 610 | - Revert "Fix Context lookup application when moving back after a glyph..." |
| 611 | This introduced memory access problems. To be fixed properly soon. |
| 612 | |
| 613 | |
Behdad Esfahbod | 8e42c3c | 2017-03-05 13:54:56 -0800 | [diff] [blame] | 614 | Overview of changes leading to 1.4.4 |
| 615 | Sunday, March 5, 2017 |
| 616 | ==================================== |
| 617 | |
| 618 | - Fix Context lookup application when moving back after a glyph deletion. |
| 619 | - Fix buffer-overrun in Bengali. |
| 620 | |
| 621 | |
Behdad Esfahbod | 6685d28 | 2017-02-25 11:35:05 -0800 | [diff] [blame] | 622 | Overview of changes leading to 1.4.3 |
| 623 | Saturday, February 25, 2017 |
| 624 | ==================================== |
| 625 | |
| 626 | - Route Adlam script to Arabic shaper. |
| 627 | - Misc fixes. |
| 628 | - New API: |
| 629 | hb_font_set_face() |
| 630 | - Deprecate API: |
| 631 | hb_graphite2_font_get_gr_font() |
| 632 | |
| 633 | |
Behdad Esfahbod | 6af6c11 | 2017-01-23 18:35:00 -0800 | [diff] [blame] | 634 | Overview of changes leading to 1.4.2 |
| 635 | Monday, January 23, 2017 |
| 636 | ==================================== |
| 637 | |
| 638 | - Implement OpenType Font Variation tables avar/fvar/HVAR/VVAR. |
| 639 | - hb-shape and hb-view now accept --variations. |
| 640 | - New API: |
| 641 | |
| 642 | hb_variation_t |
| 643 | hb_variation_from_string() |
| 644 | hb_variation_to_string() |
| 645 | |
| 646 | hb_font_set_variations() |
| 647 | hb_font_set_var_coords_design() |
| 648 | hb_font_get_var_coords_normalized() |
| 649 | |
| 650 | hb-ot-var.h: |
| 651 | hb_ot_var_axis_t |
| 652 | hb_ot_var_has_data() |
| 653 | hb_ot_var_get_axis_count() |
| 654 | hb_ot_var_get_axes() |
| 655 | hb_ot_var_find_axis() |
| 656 | hb_ot_var_normalize_variations() |
| 657 | hb_ot_var_normalize_coords() |
| 658 | |
| 659 | - MVAR to be implemented later. Access to named instances to be |
| 660 | implemented later as well. |
| 661 | |
| 662 | - Misc fixes. |
| 663 | |
| 664 | |
Behdad Esfahbod | af596a5 | 2017-01-05 20:24:41 -0800 | [diff] [blame] | 665 | Overview of changes leading to 1.4.1 |
| 666 | Thursday, January 5, 2017 |
| 667 | ==================================== |
| 668 | |
| 669 | - Always build and use UCDN for Unicode data by default. |
| 670 | Reduces dependence on version of Unicode data in glib, |
| 671 | specially in the Windows bundles we are shipping, which |
| 672 | have very old glib. |
| 673 | |
| 674 | |
Behdad Esfahbod | f339706 | 2017-01-05 01:27:49 -0800 | [diff] [blame] | 675 | Overview of changes leading to 1.4.0 |
| 676 | Thursday, January 5, 2017 |
| 677 | ==================================== |
| 678 | |
| 679 | - Merged "OpenType GX" branch which adds core of support for |
| 680 | OpenType 1.8 Font Variations. To that extent, the relevant |
| 681 | new API is: |
| 682 | |
| 683 | New API: |
| 684 | hb_font_set_var_coords_normalized() |
| 685 | |
| 686 | with supporting API: |
| 687 | |
| 688 | New API: |
| 689 | HB_OT_LAYOUT_NO_VARIATIONS_INDEX |
| 690 | hb_ot_layout_table_find_feature_variations() |
| 691 | hb_ot_layout_feature_with_variations_get_lookups() |
| 692 | hb_shape_plan_create2() |
| 693 | hb_shape_plan_create_cached2() |
| 694 | |
| 695 | Currently variations in GSUB/GPOS/GDEF are fully supported, |
| 696 | and no other tables are supported. In particular, fvar/avar |
| 697 | are NOT supported, hence the hb_font_set_var_coords_normalized() |
| 698 | taking normalized coordinates. API to take design coordinates |
| 699 | will be added in the future. |
| 700 | |
| 701 | HVAR/VVAR/MVAR support will also be added to hb-ot-font in the |
| 702 | future. |
| 703 | |
| 704 | - Fix regression in GDEF glyph class processing. |
| 705 | - Add decompositions for Chakma, Limbu, and Balinese in USE shaper. |
| 706 | - Misc fixes. |
| 707 | |
| 708 | |
Behdad Esfahbod | b843c6d | 2016-12-05 13:42:28 -0800 | [diff] [blame] | 709 | Overview of changes leading to 1.3.4 |
| 710 | Monday, December 5, 2016 |
| 711 | ==================================== |
| 712 | |
| 713 | - Fix vertical glyph origin in hb-ot-font. |
| 714 | - Implement CBDT/CBLC color font glyph extents in hb-ot-font. |
| 715 | |
| 716 | |
Behdad Esfahbod | 966ac7e | 2016-10-26 16:17:15 +0200 | [diff] [blame] | 717 | Overview of changes leading to 1.3.3 |
| 718 | Wednesday, September 28, 2016 |
| 719 | ==================================== |
| 720 | |
| 721 | - Implement parsing of OpenType MATH table. |
| 722 | New API: |
| 723 | HB_OT_TAG_MATH |
| 724 | HB_OT_MATH_SCRIPT |
| 725 | hb_ot_math_constant_t |
| 726 | hb_ot_math_kern_t |
| 727 | hb_ot_math_glyph_variant_t |
| 728 | hb_ot_math_glyph_part_flags_t |
| 729 | hb_ot_math_glyph_part_t |
| 730 | hb_ot_math_has_data |
| 731 | hb_ot_math_get_constant |
| 732 | hb_ot_math_get_glyph_italics_correction |
| 733 | hb_ot_math_get_glyph_top_accent_attachment |
| 734 | hb_ot_math_get_glyph_kerning |
| 735 | hb_ot_math_is_glyph_extended_shape |
| 736 | hb_ot_math_get_glyph_variants |
| 737 | hb_ot_math_get_min_connector_overlap |
| 738 | hb_ot_math_get_glyph_assembly |
| 739 | |
| 740 | |
Behdad Esfahbod | f73a87d | 2016-09-27 13:50:54 +0200 | [diff] [blame] | 741 | Overview of changes leading to 1.3.2 |
| 742 | Wednesday, September 27, 2016 |
| 743 | ==================================== |
| 744 | |
| 745 | - Fix build of hb-coretext on older OS X versions. |
| 746 | |
| 747 | |
Behdad Esfahbod | d22ab6c | 2016-09-07 14:28:47 -0700 | [diff] [blame] | 748 | Overview of changes leading to 1.3.1 |
| 749 | Wednesday, September 7, 2016 |
| 750 | ==================================== |
| 751 | |
| 752 | - Blacklist bad GDEF of more fonts (Padauk). |
| 753 | - More CoreText backend crash fixes with OS X 10.9.5. |
| 754 | - Misc fixes. |
| 755 | |
| 756 | |
Behdad Esfahbod | a732e00 | 2016-07-21 01:58:00 -0700 | [diff] [blame] | 757 | Overview of changes leading to 1.3.0 |
| 758 | Thursday, July 21, 2016 |
| 759 | ==================================== |
| 760 | |
| 761 | - Update to Unicode 9.0.0 |
| 762 | - Move Javanese from Indic shaper to Universal Shaping Engine. |
| 763 | - Allow MultipleSubst to delete a glyph (matching Windows engine). |
| 764 | - Update Universal Shaping Engine to latest draft from Microsoft. |
| 765 | - DirectWrite backend improvements. Note: this backend is for testing ONLY. |
| 766 | - CoreText backend improvements with unreachable fonts. |
| 767 | - Implement symbol fonts (cmap 3.0.0) in hb-ft and hb-ot-font. |
| 768 | - Blacklist bad GDEF of more fonts (Tahoma & others). |
| 769 | - Misc fixes. |
| 770 | |
| 771 | |
Behdad Esfahbod | a5b7b0d | 2016-05-02 10:44:13 +0200 | [diff] [blame] | 772 | Overview of changes leading to 1.2.7 |
| 773 | Monday, May 2, 2016 |
| 774 | ==================================== |
| 775 | |
| 776 | - Blacklist another version of Times New Roman (Bold) Italic from Windows 7. |
| 777 | - Fix Mongolian Free Variation Selectors shaping with certain fonts. |
| 778 | - Fix Tibetan shorthand contractions shaping. |
| 779 | - Improved list of language tag mappings. |
| 780 | - Unbreak build on Windows CE. |
| 781 | - Make 'glyf' table loading lazy in hb-ot-font. |
| 782 | |
| 783 | |
Behdad Esfahbod | 00ea66f | 2016-04-08 13:51:01 -0700 | [diff] [blame] | 784 | Overview of changes leading to 1.2.6 |
| 785 | Friday, April 8, 2016 |
| 786 | ==================================== |
| 787 | |
| 788 | - Blacklist GDEF table of another set of Times New Roman (Bold) Italic. |
| 789 | - DirectWrite backend improvements. Note: DirectWrite backend is |
| 790 | exclusively for our internal testing and should NOT be used in any |
| 791 | production system whatsoever. |
| 792 | |
| 793 | |
Behdad Esfahbod | a0331b5 | 2016-04-04 16:25:32 -0700 | [diff] [blame] | 794 | Overview of changes leading to 1.2.5 |
| 795 | Monday, April 4, 2016 |
| 796 | ==================================== |
| 797 | |
| 798 | - Fix GDEF mark-filtering-set, which was broken in 1.2.3. |
| 799 | |
| 800 | |
Behdad Esfahbod | 0251b0c | 2016-03-17 14:37:11 -0700 | [diff] [blame] | 801 | Overview of changes leading to 1.2.4 |
| 802 | Thursday, March 17, 2016 |
| 803 | ==================================== |
| 804 | |
| 805 | - Synthesize GDEF glyph class for any glyph that does not have one in GDEF. |
| 806 | I really hope we don't discover broken fonts that shape badly with this |
| 807 | change. |
| 808 | - Misc build and other minor fixes. |
| 809 | - API changes: |
| 810 | - Added HB_NDEBUG. It's fine for production systems to define this to |
| 811 | disable high-overhead debugging checks. However, I also reduced the |
| 812 | overhead of those checks, so it's a non-issue right now. You can |
| 813 | forget it. Just not defining anything at all is fine. |
| 814 | |
| 815 | |
Behdad Esfahbod | 75568b0 | 2016-02-25 12:26:26 +0900 | [diff] [blame] | 816 | Overview of changes leading to 1.2.3 |
| 817 | Thursday, February 25, 2016 |
| 818 | ==================================== |
| 819 | |
| 820 | - Blacklist GDEF table of certain versions of Times New Roman (Bold) Italic, |
| 821 | due to bug in glyph class of ASCII double-quote character. This should |
| 822 | address "regression" introduced in 1.2.0 when we switched mark zeroing |
| 823 | in most shapers from BY_UNICODE_LATE to BY_GDEF_LATE. |
| 824 | This fourth release in a week should finally stablize things... |
| 825 | |
| 826 | - hb-ot-font's get_glyph() implementation saw some optimizations. Though, |
| 827 | might be really hard to measure in real-world situations. |
| 828 | |
| 829 | - Also, two rather small API changes: |
| 830 | |
| 831 | We now disable some time-consuming internal bookkeeping if built with NDEBUG |
| 832 | defined. This is a first time that we use NDEBUG to disable debug code. If |
| 833 | there exist production systems that do NOT want to enable NDEBUG, please let |
| 834 | me know and I'll add HB_NDEBUG. |
| 835 | |
| 836 | Added get_nominal_glyph() and get_variation_glyph() instead of get_glyph() |
| 837 | |
| 838 | New API: |
| 839 | - hb_font_get_nominal_glyph_func_t |
| 840 | - hb_font_get_variation_glyph_func_t |
| 841 | - hb_font_funcs_set_nominal_glyph_func() |
| 842 | - hb_font_funcs_set_variation_glyph_func() |
| 843 | - hb_font_get_nominal_glyph() |
| 844 | - hb_font_get_variation_glyph() |
| 845 | |
| 846 | Deprecated API: |
| 847 | - hb_font_get_glyph_func_t |
| 848 | - hb_font_funcs_set_glyph_func() |
| 849 | |
| 850 | Clients that implement their own font-funcs are encouraged to replace |
| 851 | their get_glyph() implementation with a get_nominal_glyph() and |
| 852 | get_variation_glyph() pair. The variation version can assume that |
| 853 | variation_selector argument is not zero. Old (deprecated) functions |
| 854 | will continue working indefinitely using internal gymnastics; it is |
| 855 | just more efficient to use the new functions. |
| 856 | |
| 857 | |
Behdad Esfahbod | b30a971 | 2016-02-24 17:32:22 +0900 | [diff] [blame] | 858 | Overview of changes leading to 1.2.2 |
| 859 | Wednesday, February 24, 2016 |
| 860 | ==================================== |
| 861 | |
| 862 | - Fix regression with mark positioning with fonts that have |
| 863 | non-zero mark advances. This was introduced in 1.2.0 while |
| 864 | trying to make mark and cursive attachments to work together. |
| 865 | I have partially reverted that, so this version is much more |
| 866 | like what we had before. All clients who updated to 1.2.0 |
| 867 | should update to this version. |
| 868 | |
| 869 | |
Behdad Esfahbod | dabf32a | 2016-02-23 15:38:43 +0900 | [diff] [blame] | 870 | Overview of changes leading to 1.2.1 |
Behdad Esfahbod | b30a971 | 2016-02-24 17:32:22 +0900 | [diff] [blame] | 871 | Tuesday, February 23, 2016 |
Behdad Esfahbod | dabf32a | 2016-02-23 15:38:43 +0900 | [diff] [blame] | 872 | ==================================== |
| 873 | |
| 874 | - CoreText: Fix bug with wrong scale if font scale was changed later. |
| 875 | https://github.com/libass/libass/issues/212 |
| 876 | - CoreText: Drastically speed up font initialization. |
| 877 | - CoreText: Fix tiny leak. |
| 878 | - Group ZWJ/ZWNJ with previous syllable under cluster-level=0. |
ebraminio | 7c6937e | 2017-11-20 14:49:22 -0500 | [diff] [blame] | 879 | https://github.com/harfbuzz/harfbuzz/issues/217 |
Behdad Esfahbod | dabf32a | 2016-02-23 15:38:43 +0900 | [diff] [blame] | 880 | - Add test/shaping/README.md about how to add tests to the suite. |
| 881 | |
| 882 | |
Behdad Esfahbod | 27847ca | 2016-02-19 15:56:50 +0700 | [diff] [blame] | 883 | Overview of changes leading to 1.2.0 |
| 884 | Friday, February 19, 2016 |
| 885 | ==================================== |
| 886 | |
| 887 | - Fix various issues (hangs mostly) in case of memory allocation failure. |
| 888 | - Change mark zeroing types of most shapers from BY_UNICODE_LATE to |
| 889 | BY_GDEF_LATE. This seems to be what Uniscribe does. |
| 890 | - Change mark zeroing of USE shaper from NONE to BY_GDEF_EARLY. That's |
| 891 | what Windows does. |
| 892 | - Allow GPOS cursive connection on marks, and fix the interaction with |
| 893 | mark attachment. This work resulted in some changes to how mark |
| 894 | attachments work. See: |
ebraminio | 7c6937e | 2017-11-20 14:49:22 -0500 | [diff] [blame] | 895 | https://github.com/harfbuzz/harfbuzz/issues/211 |
| 896 | https://github.com/harfbuzz/harfbuzz/commit/86c68c7a2c971efe8e35b1f1bd99401dc8b688d2 |
Behdad Esfahbod | 27847ca | 2016-02-19 15:56:50 +0700 | [diff] [blame] | 897 | - Graphite2 shaper: improved negative advance handling (eg. Nastaliq). |
| 898 | - Add nmake-based build system for Windows. |
| 899 | - Minor speedup. |
| 900 | - Misc. improvements. |
| 901 | |
| 902 | |
Behdad Esfahbod | 1144129 | 2016-01-11 13:16:35 +0000 | [diff] [blame] | 903 | Overview of changes leading to 1.1.3 |
| 904 | Monday, January 11, 2016 |
| 905 | ==================================== |
| 906 | |
| 907 | - Ported Indic shaper to Unicode 8.0 data. |
| 908 | - Universal Shaping Engine fixes. |
| 909 | - Speed up CoreText shaper when font fallback happens in CoreText. |
| 910 | - Documentation improvements, thanks to Khaled Hosny. |
| 911 | - Very rough directwrite shaper for testing, thanks to Ebrahim Byagowi. |
| 912 | - Misc bug fixes. |
| 913 | - New API: |
| 914 | |
| 915 | * Font extents: |
| 916 | hb_font_extents_t |
| 917 | hb_font_get_font_extents_func_t |
| 918 | hb_font_get_font_h_extents_func_t |
| 919 | hb_font_get_font_v_extents_func_t |
| 920 | hb_font_funcs_set_font_h_extents_func |
| 921 | hb_font_funcs_set_font_v_extents_func |
| 922 | hb_font_get_h_extents |
| 923 | hb_font_get_v_extents |
| 924 | hb_font_get_extents_for_direction |
| 925 | |
| 926 | * Buffer message (aka debug): |
| 927 | hb_buffer_message_func_t |
| 928 | hb_buffer_set_message_func() |
| 929 | Actual message protocol to be fleshed out later. |
| 930 | |
| 931 | |
Behdad Esfahbod | d44d52b | 2015-11-26 19:35:43 -0500 | [diff] [blame] | 932 | Overview of changes leading to 1.1.2 |
| 933 | Wednesday, November 26, 2015 |
| 934 | ==================================== |
| 935 | |
| 936 | - Fix badly-broken fallback shaper that affected terminology. |
ebraminio | 7c6937e | 2017-11-20 14:49:22 -0500 | [diff] [blame] | 937 | https://github.com/harfbuzz/harfbuzz/issues/187 |
Behdad Esfahbod | d44d52b | 2015-11-26 19:35:43 -0500 | [diff] [blame] | 938 | - Fix y_scaling in Graphite shaper. |
| 939 | - API changes: |
| 940 | * An unset glyph_h_origin() function in font-funcs now (sensibly) |
| 941 | implies horizontal origin at 0,0. Ie, the nil callback returns |
| 942 | true instead of false. As such, implementations that have a |
| 943 | glyph_h_origin() that simply returns true, can remove that function |
| 944 | with HarfBuzz >= 1.1.2. This results in a tiny speedup. |
| 945 | |
| 946 | |
Behdad Esfahbod | b24e93e | 2015-11-24 13:18:20 -0600 | [diff] [blame] | 947 | Overview of changes leading to 1.1.1 |
| 948 | Wednesday, November 24, 2015 |
| 949 | ==================================== |
| 950 | |
| 951 | - Build fixes, specially for hb-coretext. |
| 952 | |
| 953 | |
Behdad Esfahbod | e1118ae | 2015-11-18 23:40:47 -0800 | [diff] [blame] | 954 | Overview of changes leading to 1.1.0 |
| 955 | Wednesday, November 18, 2015 |
| 956 | ==================================== |
| 957 | |
| 958 | - Implement 'stch' stretch feature for Syriac Abbreviation Mark. |
ebraminio | 7c6937e | 2017-11-20 14:49:22 -0500 | [diff] [blame] | 959 | https://github.com/harfbuzz/harfbuzz/issues/141 |
Behdad Esfahbod | e1118ae | 2015-11-18 23:40:47 -0800 | [diff] [blame] | 960 | - Disable use of decompose_compatibility() callback. |
| 961 | - Implement "shaping" of various Unicode space characters, even |
| 962 | if the font does not support them. |
ebraminio | 7c6937e | 2017-11-20 14:49:22 -0500 | [diff] [blame] | 963 | https://github.com/harfbuzz/harfbuzz/issues/153 |
Behdad Esfahbod | e1118ae | 2015-11-18 23:40:47 -0800 | [diff] [blame] | 964 | - If font does not support U+2011 NO-BREAK HYPHEN, fallback to |
| 965 | U+2010 HYPHEN. |
| 966 | - Changes resulting from libFuzzer continuous fuzzing: |
| 967 | * Reject font tables that need more than 8 edits, |
| 968 | * Bound buffer growth during shaping to 32x, |
| 969 | * Fix assertions and other issues at OOM / buffer max-growth. |
| 970 | - Misc fixes and optimizations. |
| 971 | - API changes: |
| 972 | * All fonts created with hb_font_create() now inherit from |
| 973 | (ie. have parent) hb_font_get_empty(). |
| 974 | |
| 975 | |
Behdad Esfahbod | 86cadc2 | 2015-10-15 20:25:29 -0300 | [diff] [blame] | 976 | Overview of changes leading to 1.0.6 |
| 977 | Thursday, October 15, 2015 |
| 978 | ==================================== |
| 979 | |
| 980 | - Reduce max nesting level in OT lookups from 8 to 6. |
| 981 | Should not affect any real font as far as I know. |
| 982 | - Fix memory access issue in ot-font. |
| 983 | - Revert default load-flags of fonts created using hb_ft_font_create() |
| 984 | back to FT_LOAD_DEFAULT|FT_LOAD_NO_HINTING. This was changed in |
| 985 | last release (1.0.5), but caused major issues, so revert. |
ebraminio | 7c6937e | 2017-11-20 14:49:22 -0500 | [diff] [blame] | 986 | https://github.com/harfbuzz/harfbuzz/issues/143 |
Behdad Esfahbod | 86cadc2 | 2015-10-15 20:25:29 -0300 | [diff] [blame] | 987 | |
| 988 | |
Behdad Esfahbod | ab17052 | 2015-10-13 10:55:33 -0300 | [diff] [blame] | 989 | Overview of changes leading to 1.0.5 |
| 990 | Tuesday, October 13, 2015 |
| 991 | ==================================== |
| 992 | |
| 993 | - Fix multiple memory access bugs discovered using libFuzzer. |
ebraminio | 7c6937e | 2017-11-20 14:49:22 -0500 | [diff] [blame] | 994 | https://github.com/harfbuzz/harfbuzz/issues/139 |
Behdad Esfahbod | ab17052 | 2015-10-13 10:55:33 -0300 | [diff] [blame] | 995 | Everyone should upgrade to this version as soon as possible. |
| 996 | We now have continuous fuzzing set up, to avoid issues like |
| 997 | these creeping in again. |
| 998 | - Misc fixes. |
| 999 | |
| 1000 | - New API: |
| 1001 | * hb_font_set_parent(). |
| 1002 | * hb_ft_font_[sg]et_load_flags() |
| 1003 | The default flags for fonts created using hb_ft_font_create() |
| 1004 | has changed to default to FT_LOAD_DEFAULT now. Previously it |
| 1005 | was defaulting to FT_LOAD_DFEAULT|FT_LOAD_NO_HINTING. |
| 1006 | |
| 1007 | - API changes: |
| 1008 | * Fonts now default to units-per-EM as their scale, instead of 0. |
| 1009 | * hb_font_create_sub_font() does NOT make parent font immutable |
| 1010 | anymore. hb_font_make_immutable() does. |
| 1011 | |
| 1012 | |
Behdad Esfahbod | 432ffc4 | 2015-09-30 22:51:16 +0100 | [diff] [blame] | 1013 | Overview of changes leading to 1.0.4 |
| 1014 | Wednesday, September 30, 2015 |
| 1015 | ==================================== |
| 1016 | |
| 1017 | - Fix minor out-of-bounds read error. |
| 1018 | |
| 1019 | |
Behdad Esfahbod | 7f54053 | 2015-09-01 17:03:50 +0100 | [diff] [blame] | 1020 | Overview of changes leading to 1.0.3 |
| 1021 | Tuesday, September 1, 2015 |
| 1022 | ==================================== |
| 1023 | |
| 1024 | - Start of user documentation, from Simon Cozens! |
| 1025 | - Implement glyph_extents() for TrueType fonts in hb-ot-font. |
| 1026 | - Improve GPOS cursive attachments with conflicting lookups. |
| 1027 | - More fixes for cluster-level = 1. |
| 1028 | - Uniscribe positioning fix. |
| 1029 | |
| 1030 | |
Behdad Esfahbod | 789b89e | 2015-08-19 13:39:57 +0100 | [diff] [blame] | 1031 | Overview of changes leading to 1.0.2 |
| 1032 | Wednesday, August 19, 2015 |
| 1033 | ==================================== |
| 1034 | |
| 1035 | - Fix shaping with cluster-level > 0. |
| 1036 | - Fix Uniscribe backend font-size scaling. |
| 1037 | - Declare dependencies in harfbuzz.pc. |
| 1038 | FreeType is not declared though, to avoid bugs in pkg-config |
| 1039 | 0.26 with recursive dependencies. |
| 1040 | - Slightly improved debug infrastructure. More to come later. |
| 1041 | - Misc build fixes. |
| 1042 | |
| 1043 | |
Behdad Esfahbod | 9002c27 | 2015-07-27 12:17:54 +0200 | [diff] [blame] | 1044 | Overview of changes leading to 1.0.1 |
| 1045 | Monday, July 27, 2015 |
| 1046 | ==================================== |
| 1047 | |
| 1048 | - Fix out-of-bounds access in USE shaper. |
| 1049 | |
| 1050 | |
Behdad Esfahbod | 2604423 | 2015-07-26 23:39:10 +0200 | [diff] [blame] | 1051 | Overview of changes leading to 1.0.0 |
Behdad Esfahbod | 9002c27 | 2015-07-27 12:17:54 +0200 | [diff] [blame] | 1052 | Sunday, July 26, 2015 |
Behdad Esfahbod | 2604423 | 2015-07-26 23:39:10 +0200 | [diff] [blame] | 1053 | ==================================== |
| 1054 | |
| 1055 | - Implement Universal Shaping Engine: |
| 1056 | https://www.microsoft.com/typography/OpenTypeDev/USE/intro.htm |
| 1057 | http://blogs.windows.com/bloggingwindows/2015/02/23/windows-shapes-the-worlds-languages/ |
| 1058 | - Bump version to 1.0.0. The soname was NOT bumped. |
| 1059 | |
| 1060 | |
Behdad Esfahbod | 2ed6be6 | 2015-07-26 19:29:53 +0200 | [diff] [blame] | 1061 | Overview of changes leading to 0.9.42 |
| 1062 | Thursday, July 26, 2015 |
| 1063 | ===================================== |
Behdad Esfahbod | 376d587 | 2015-07-22 16:51:12 +0100 | [diff] [blame] | 1064 | |
Behdad Esfahbod | 2ed6be6 | 2015-07-26 19:29:53 +0200 | [diff] [blame] | 1065 | - New API to allow for retrieving finer-grained cluster |
| 1066 | mappings if the client desires to handle them. Default |
| 1067 | behavior is unchanged. |
| 1068 | - Fix cluster merging when removing default-ignorables. |
| 1069 | - Update to Unicode 8.0 |
| 1070 | - hb-graphite2 fixes. |
| 1071 | - Misc fixes. |
Behdad Esfahbod | 376d587 | 2015-07-22 16:51:12 +0100 | [diff] [blame] | 1072 | - Removed HB_NO_MERGE_CLUSTERS hack. |
| 1073 | - New API: |
| 1074 | hb_buffer_cluster_level_t enum |
| 1075 | hb_buffer_get_cluster_level() |
| 1076 | hb_buffer_set_cluster_level() |
| 1077 | hb-shape / hb-view --cluster-level |
| 1078 | |
Behdad Esfahbod | 2ed6be6 | 2015-07-26 19:29:53 +0200 | [diff] [blame] | 1079 | |
Behdad Esfahbod | a6446d4 | 2015-06-18 11:14:56 -0700 | [diff] [blame] | 1080 | Overview of changes leading to 0.9.41 |
| 1081 | Thursday, June 18, 2015 |
| 1082 | ===================================== |
| 1083 | |
| 1084 | - Fix hb-coretext with trailing whitespace in right-to-left. |
| 1085 | - New API: hb_buffer_reverse_range(). |
| 1086 | - Allow implementing atomic ops in config.h. |
| 1087 | - Fix hb_language_t in language bindings. |
| 1088 | - Misc fixes. |
| 1089 | |
Behdad Esfahbod | 2ed6be6 | 2015-07-26 19:29:53 +0200 | [diff] [blame] | 1090 | |
Behdad Esfahbod | e3671b8 | 2015-03-20 18:03:02 -0400 | [diff] [blame] | 1091 | Overview of changes leading to 0.9.40 |
| 1092 | Friday, March 20, 2015 |
| 1093 | ===================================== |
| 1094 | |
| 1095 | - Another hb-coretext crasher fix. Ouch! |
| 1096 | - Happy Norouz! |
| 1097 | |
| 1098 | |
Behdad Esfahbod | 02a04e6 | 2015-03-04 12:32:03 -0800 | [diff] [blame] | 1099 | Overview of changes leading to 0.9.39 |
| 1100 | Wednesday, March 4, 2015 |
| 1101 | ===================================== |
| 1102 | |
| 1103 | - Critical hb-coretext fixes. |
| 1104 | - Optimizations and refactoring; no functional change |
| 1105 | expected. |
| 1106 | - Misc build fixes. |
| 1107 | |
| 1108 | |
Behdad Esfahbod | 28f5e0b | 2015-01-23 12:45:35 -0800 | [diff] [blame] | 1109 | Overview of changes leading to 0.9.38 |
| 1110 | Friday, January 23, 2015 |
| 1111 | ===================================== |
| 1112 | |
| 1113 | - Fix minor out-of-bounds access in Indic shaper. |
| 1114 | - Change New Tai Lue shaping engine from South-East Asian to default, |
| 1115 | reflecting change in Unicode encoding model. |
| 1116 | - Add hb-shape --font-size. Can take up to two numbers for separate |
| 1117 | x / y size. |
| 1118 | - Fix CoreText and FreeType scale issues with negative scales. |
| 1119 | - Reject blobs larger than 2GB. This might break some icu-le-hb clients |
| 1120 | that need security fixes. See: |
| 1121 | http://www.icu-project.org/trac/ticket/11450 |
| 1122 | - Avoid accessing font tables during face destruction, in casce rogue |
| 1123 | clients released face data already. |
| 1124 | - Fix up gobject-introspection a bit. Python bindings kinda working. |
| 1125 | See README.python. |
| 1126 | - Misc fixes. |
| 1127 | - API additions: |
| 1128 | hb_ft_face_create_referenced() |
| 1129 | hb_ft_font_create_referenced() |
| 1130 | |
| 1131 | |
Behdad Esfahbod | 66e3740 | 2014-12-17 12:09:17 -0800 | [diff] [blame] | 1132 | Overview of changes leading to 0.9.37 |
| 1133 | Wednesday, December 17, 2014 |
| 1134 | ===================================== |
| 1135 | |
| 1136 | - Fix out-of-bounds access in Context lookup format 3. |
| 1137 | - Indic: Allow ZWJ/ZWNJ before syllable modifiers. |
| 1138 | |
| 1139 | |
Behdad Esfahbod | c0e95ab | 2014-11-20 14:42:24 -0800 | [diff] [blame] | 1140 | Overview of changes leading to 0.9.36 |
| 1141 | Thursday, November 20, 2014 |
| 1142 | ===================================== |
| 1143 | |
| 1144 | - First time that three months went by without a release since |
| 1145 | 0.9.2 was released on August 10, 2012! |
| 1146 | - Fix performance bug in hb_ot_collect_glyphs(): |
| 1147 | https://bugzilla.mozilla.org/show_bug.cgi?id=1090869 |
| 1148 | - Add basic vertical-text support to hb-ot-font. |
| 1149 | - Misc build fixes. |
| 1150 | |
| 1151 | |
Behdad Esfahbod | cd5a114 | 2014-08-13 12:39:34 -0400 | [diff] [blame] | 1152 | Overview of changes leading to 0.9.35 |
| 1153 | Saturday, August 13, 2014 |
| 1154 | ===================================== |
| 1155 | |
| 1156 | - Fix major shape-plan caching bug when more than one shaper were |
| 1157 | provided to hb_shape_full() (as exercised by XeTeX). |
| 1158 | http://www.mail-archive.com/debian-bugs-dist@lists.debian.org/msg1246370.html |
| 1159 | - Fix Arabic fallback shaping regression. This was broken in 0.9.32. |
| 1160 | - Major hb-coretext fixes. That backend is complete now, including |
| 1161 | respecing buffer direction and language, down to vertical writing. |
| 1162 | - Build fixes for Windows CE. Should build fine now. |
| 1163 | - Misc fixes: |
| 1164 | Use atexit() only if it's safe to call from shared library |
| 1165 | https://bugs.freedesktop.org/show_bug.cgi?id=82246 |
| 1166 | Mandaic had errors in its Unicode Joining_Type |
| 1167 | https://bugs.freedesktop.org/show_bug.cgi?id=82306 |
| 1168 | - API changes: |
| 1169 | |
| 1170 | * hb_buffer_clear_contents() does not reset buffer flags now. |
| 1171 | |
| 1172 | After 763e5466c0a03a7c27020e1e2598e488612529a7, one doesn't |
| 1173 | need to set flags for different pieces of text. The flags now |
| 1174 | are something the client sets up once, depending on how it |
| 1175 | actually uses the buffer. As such, don't clear it in |
| 1176 | clear_contents(). |
| 1177 | |
| 1178 | I don't expect any changes to be needed to any existing client. |
| 1179 | |
| 1180 | |
Behdad Esfahbod | 91c2c0f | 2014-08-02 19:24:55 -0400 | [diff] [blame] | 1181 | Overview of changes leading to 0.9.34 |
| 1182 | Saturday, August 2, 2014 |
| 1183 | ===================================== |
| 1184 | |
| 1185 | - hb_feature_from_string() now accepts CSS font-feature-settings format. |
| 1186 | - As a result, hb-shape / hb-view --features also accept CSS-style strings. |
| 1187 | Eg, "'liga' off" is accepted now. |
| 1188 | - Add old-spec Myanmar shaper: |
| 1189 | https://bugs.freedesktop.org/show_bug.cgi?id=81775 |
| 1190 | - Don't apply 'calt' in Hangul shaper. |
| 1191 | - Fix mark advance zeroing for Hebrew shaper: |
| 1192 | https://bugs.freedesktop.org/show_bug.cgi?id=76767 |
| 1193 | - Implement Windows-1256 custom Arabic shaping. Only built on Windows, |
| 1194 | and requires help from get_glyph(). Used by Firefox. |
| 1195 | https://bugzilla.mozilla.org/show_bug.cgi?id=1045139 |
| 1196 | - Disable 'liga' in vertical text. |
| 1197 | - Build fixes. |
| 1198 | - API changes: |
| 1199 | |
| 1200 | * Make HB_BUFFER_FLAG_BOT/EOT easier to use. |
| 1201 | |
| 1202 | Previously, we expected users to provide BOT/EOT flags when the |
| 1203 | text *segment* was at paragraph boundaries. This meant that for |
| 1204 | clients that provide full paragraph to HarfBuzz (eg. Pango), they |
| 1205 | had code like this: |
| 1206 | |
| 1207 | hb_buffer_set_flags (hb_buffer, |
| 1208 | (item_offset == 0 ? HB_BUFFER_FLAG_BOT : 0) | |
| 1209 | (item_offset + item_length == paragraph_length ? |
| 1210 | HB_BUFFER_FLAG_EOT : 0)); |
| 1211 | |
| 1212 | hb_buffer_add_utf8 (hb_buffer, |
| 1213 | paragraph_text, paragraph_length, |
| 1214 | item_offset, item_length); |
| 1215 | |
| 1216 | After this change such clients can simply say: |
| 1217 | |
| 1218 | hb_buffer_set_flags (hb_buffer, |
| 1219 | HB_BUFFER_FLAG_BOT | HB_BUFFER_FLAG_EOT); |
| 1220 | |
| 1221 | hb_buffer_add_utf8 (hb_buffer, |
| 1222 | paragraph_text, paragraph_length, |
| 1223 | item_offset, item_length); |
| 1224 | |
| 1225 | Ie, HarfBuzz itself checks whether the segment is at the beginning/end |
| 1226 | of the paragraph. Clients that only pass item-at-a-time to HarfBuzz |
| 1227 | continue not setting any flags whatsoever. |
| 1228 | |
| 1229 | Another way to put it is: if there's pre-context text in the buffer, |
| 1230 | HarfBuzz ignores the BOT flag. If there's post-context, it ignores |
| 1231 | EOT flag. |
| 1232 | |
| 1233 | |
Behdad Esfahbod | 8c1bdb4 | 2014-07-22 17:56:43 -0400 | [diff] [blame] | 1234 | Overview of changes leading to 0.9.33 |
| 1235 | Tuesday, July 22, 2014 |
| 1236 | ===================================== |
| 1237 | |
| 1238 | - Turn off ARabic 'cswh' feature that was accidentally turned on. |
| 1239 | - Add HB_TAG_MAX_SIGNED. |
| 1240 | - Make hb_face_make_immutable() really make face immutable! |
| 1241 | - Windows build fixes. |
| 1242 | |
| 1243 | |
Behdad Esfahbod | 66f3091 | 2014-07-17 16:05:47 -0400 | [diff] [blame] | 1244 | Overview of changes leading to 0.9.32 |
| 1245 | Thursday, July 17, 2014 |
| 1246 | ===================================== |
| 1247 | |
| 1248 | - Apply Arabic shaping features in spec order exactly. |
| 1249 | - Another fix for Mongolian free variation selectors. |
| 1250 | - For non-Arabic scripts in Arabic shaper apply 'rlig' and 'calt' |
| 1251 | together. |
| 1252 | - Minor adjustment to U+FFFD logic. |
| 1253 | - Fix hb-coretext build. |
| 1254 | |
| 1255 | |
Behdad Esfahbod | a18897f | 2014-07-16 16:02:15 -0400 | [diff] [blame] | 1256 | Overview of changes leading to 0.9.31 |
| 1257 | Wednesday, July 16, 2014 |
| 1258 | ===================================== |
| 1259 | |
| 1260 | - Only accept valid UTF-8/16/32; we missed many cases before. |
| 1261 | - Better shaping of invalid UTF-8/16/32. Falls back to |
| 1262 | U+FFFD REPLACEMENT CHARACTER now. |
| 1263 | - With all changes in this release, the buffer will contain fully |
| 1264 | valid Unicode after hb_buffer_add_utf8/16/32 no matter how |
Unknown | 97145df | 2017-11-03 09:05:00 -0400 | [diff] [blame] | 1265 | broken the input is. This can be overridden though. See below. |
Behdad Esfahbod | a18897f | 2014-07-16 16:02:15 -0400 | [diff] [blame] | 1266 | - Fix Mongolian Variation Selectors for fonts without GDEF. |
| 1267 | - Fix minor invalid buffer access. |
| 1268 | - Accept zh-Hant and zh-Hans language tags. hb_ot_tag_to_language() |
| 1269 | now uses these instead of private tags. |
| 1270 | - Build fixes. |
| 1271 | - New API: |
| 1272 | * hb_buffer_add_codepoints(). This does what hb_buffer_add_utf32() |
| 1273 | used to do, ie. no validity check on the input at all. add_utf32 |
| 1274 | now replaces invalid Unicode codepoints with the replacement |
| 1275 | character (see below). |
| 1276 | * hb_buffer_set_replacement_codepoint() |
| 1277 | * hb_buffer_get_replacement_codepoint() |
| 1278 | Previously, in hb_buffer_add_utf8 and hb_buffer_add_utf16, when |
| 1279 | we detected broken input, we replaced that with (hb_codepoint_t)-1. |
| 1280 | This has changed to use U+FFFD now, but can be changed using these |
| 1281 | new API. |
| 1282 | |
| 1283 | |
Behdad Esfahbod | ea00137 | 2014-07-09 17:28:43 -0400 | [diff] [blame] | 1284 | Overview of changes leading to 0.9.30 |
| 1285 | Wednesday, July 9, 2014 |
| 1286 | ===================================== |
Behdad Esfahbod | a18897f | 2014-07-16 16:02:15 -0400 | [diff] [blame] | 1287 | |
Behdad Esfahbod | ea00137 | 2014-07-09 17:28:43 -0400 | [diff] [blame] | 1288 | - Update to Unicode 7.0.0: |
| 1289 | * New scripts Manichaean and Psalter Pahlavi are shaped using |
| 1290 | Arabic shaper. |
| 1291 | * All the other new scripts to through the generic shaper for |
| 1292 | now. |
| 1293 | - Minor Indic improvements. |
| 1294 | - Fix graphite2 backend cluster mapping [crasher!] |
| 1295 | - API changes: |
| 1296 | * New HB_SCRIPT_* values for Unicode 7.0 scripts. |
| 1297 | * New function hb_ot_layout_language_get_required_feature(). |
| 1298 | - Build fixes. |
| 1299 | |
| 1300 | |
Behdad Esfahbod | 5875ad9 | 2014-05-29 15:48:16 -0400 | [diff] [blame] | 1301 | Overview of changes leading to 0.9.29 |
| 1302 | Thursday, May 29, 2014 |
| 1303 | ===================================== |
| 1304 | |
| 1305 | - Implement cmap in hb-ot-font.h. No variation-selectors yet. |
| 1306 | - Myanmar: Allow MedialYa+Asat. |
| 1307 | - Various Indic fixes: |
| 1308 | * Support most characters in Extended Devanagary and Vedic |
| 1309 | Unicode blocks. |
| 1310 | * Allow digits and a some punctuation as consonant placeholders. |
| 1311 | - Build fixes. |
| 1312 | |
Behdad Esfahbod | ea00137 | 2014-07-09 17:28:43 -0400 | [diff] [blame] | 1313 | |
Behdad Esfahbod | 79ecdc3 | 2014-04-28 14:24:23 -0700 | [diff] [blame] | 1314 | Overview of changes leading to 0.9.28 |
| 1315 | Monday, April 28, 2014 |
| 1316 | ===================================== |
| 1317 | |
| 1318 | - Unbreak old-spec Indic shaping. (bug 76705) |
| 1319 | - Fix shaping of U+17DD and U+0FC6. |
| 1320 | - Add HB_NO_MERGE_CLUSTERS build option. NOT to be enabled by default |
| 1321 | for shipping libraries. It's an option for further experimentation |
| 1322 | right now. When we are sure how to do it properly, we will add |
| 1323 | public run-time API for the functionality. |
| 1324 | - Build fixes. |
| 1325 | |
| 1326 | |
Dominik Röttsches | ba8c9d9 | 2014-03-18 14:39:03 +0200 | [diff] [blame] | 1327 | Overview of changes leading to 0.9.27 |
| 1328 | Tuesday, March 18, 2014 |
| 1329 | ===================================== |
| 1330 | |
| 1331 | - Don't use "register" storage class specifier |
| 1332 | - Wrap definition of free_langs() with HAVE_ATEXIT |
| 1333 | - Add coretext_aat shaper and hb_coretext_face_create() constructor |
| 1334 | - If HAVE_ICU_BUILTIN is defined, use hb-icu Unicode callbacks |
| 1335 | - Add Myanmar test case from OpenType Myanmar spec |
| 1336 | - Only do fallback Hebrew composition if no GPOS 'mark' available |
| 1337 | - Allow bootstrapping without gtk-doc |
| 1338 | - Use AM_MISSING_PROG for ragel and git |
| 1339 | - Typo in ucdn's Makefile.am |
| 1340 | - Improve MemoryBarrier() implementation |
| 1341 | |
| 1342 | |
Behdad Esfahbod | 189bf23 | 2014-01-30 15:14:58 -0500 | [diff] [blame] | 1343 | Overview of changes leading to 0.9.26 |
| 1344 | Thursday, January 30, 2014 |
| 1345 | ===================================== |
| 1346 | |
| 1347 | - Misc fixes. |
| 1348 | - Fix application of 'rtlm' feature. |
| 1349 | - Automatically apply frac/numr/dnom around U+2044 FRACTION SLASH. |
| 1350 | - New header: hb-ot-shape.h |
| 1351 | - Uniscribe: fix scratch-buffer accounting. |
| 1352 | - Reorder Tai Tham SAKOT to after tone-marks. |
| 1353 | - Add Hangul shaper. |
| 1354 | - New files: |
| 1355 | hb-ot-shape-complex-hangul.cc |
| 1356 | hb-ot-shape-complex-hebrew.cc |
| 1357 | hb-ot-shape-complex-tibetan.cc |
| 1358 | - Disable 'cswh' feature in Arabic shaper. |
| 1359 | - Coretext: better handle surrogate pairs. |
| 1360 | - Add HB_TAG_MAX and _HB_SCRIPT_MAX_VALUE. |
| 1361 | |
| 1362 | |
Behdad Esfahbod | 860fc9a | 2013-12-04 20:06:59 -0500 | [diff] [blame] | 1363 | Overview of changes leading to 0.9.25 |
| 1364 | Wednesday, December 4, 2013 |
| 1365 | ===================================== |
| 1366 | |
| 1367 | - Myanmar shaper improvements. |
| 1368 | - Avoid font fallback in CoreText backend. |
| 1369 | - Additional OpenType language tag mappiongs. |
| 1370 | - More aggressive shape-plan caching. |
| 1371 | - Build with / require automake 1.13. |
| 1372 | - Build with libtool 2.4.2.418 alpha to support ppc64le. |
| 1373 | |
| 1374 | |
Behdad Esfahbod | 6300694 | 2013-11-13 14:54:07 -0500 | [diff] [blame] | 1375 | Overview of changes leading to 0.9.24 |
| 1376 | Tuesday, November 13, 2013 |
| 1377 | ===================================== |
| 1378 | |
| 1379 | - Misc compiler warning fixes with clang. |
| 1380 | - No functional changes. |
| 1381 | |
| 1382 | |
Behdad Esfahbod | dce79c2 | 2013-10-28 20:26:40 +0100 | [diff] [blame] | 1383 | Overview of changes leading to 0.9.23 |
| 1384 | Monday, October 28, 2013 |
| 1385 | ===================================== |
| 1386 | |
| 1387 | - "Udupi HarfBuzz Hackfest", Paris, October 14..18 2013. |
| 1388 | - Fix (Chain)Context recursion with non-monotone lookup positions. |
| 1389 | - Misc Indic bug fixes. |
| 1390 | - New Javanese / Buginese shaping, similar to Windows 8.1. |
| 1391 | |
| 1392 | |
Behdad Esfahbod | e152d1a | 2013-10-03 15:09:37 -0400 | [diff] [blame] | 1393 | Overview of changes leading to 0.9.22 |
| 1394 | Thursday, October 3, 2013 |
| 1395 | ===================================== |
| 1396 | |
| 1397 | - Fix use-after-end-of-scope in hb_language_from_string(). |
| 1398 | - Fix hiding of default_ignorables if font doesn't have space glyph. |
| 1399 | - Protect against out-of-range lookup indices. |
| 1400 | |
| 1401 | - API Changes: |
| 1402 | |
| 1403 | * Added hb_ot_layout_table_get_lookup_count() |
| 1404 | |
| 1405 | |
Behdad Esfahbod | b61f97d | 2013-09-16 22:07:22 -0400 | [diff] [blame] | 1406 | Overview of changes leading to 0.9.21 |
| 1407 | Monday, September 16, 2013 |
| 1408 | ===================================== |
| 1409 | |
| 1410 | - Rename gobject-introspection library name from harfbuzz to HarfBuzz. |
| 1411 | - Remove (long disabled) hb-old and hb-icu-le test shapers. |
| 1412 | - Misc gtk-doc and gobject-introspection annotations. |
| 1413 | - Misc fixes. |
| 1414 | - API changes: |
| 1415 | |
| 1416 | * Add HB_SET_VALUE_INVALID |
| 1417 | |
Behdad Esfahbod | f730b5d | 2013-08-29 15:53:33 -0400 | [diff] [blame] | 1418 | Overview of changes leading to 0.9.20 |
| 1419 | Thursday, August 29, 2013 |
| 1420 | ===================================== |
| 1421 | |
| 1422 | General: |
| 1423 | - Misc substitute_closure() fixes. |
| 1424 | - Build fixes. |
| 1425 | |
| 1426 | Documentation: |
| 1427 | - gtk-doc boilerplate integrated. Docs are built now, but |
| 1428 | contain no contents. By next release hopefully we have |
| 1429 | some content in. Enable using --enable-gtk-doc. |
| 1430 | |
| 1431 | GObject and Introspection: |
| 1432 | - Added harfbuzz-gobject library (hb-gobject.h) that has type |
| 1433 | bindings for all HarfBuzz objects and enums. Enable using |
| 1434 | --with-gobject. |
| 1435 | - Added gobject-introspection boilerplate. Nothing useful |
| 1436 | right now. Work in progress. Gets enabled automatically if |
| 1437 | --with-gobject is used. Override with --disable-introspection. |
| 1438 | |
| 1439 | OpenType shaper: |
| 1440 | - Apply 'mark' in Myanmar shaper. |
| 1441 | - Don't apply 'dlig' by default. |
| 1442 | |
| 1443 | Uniscribe shaper: |
| 1444 | - Support user features. |
| 1445 | - Fix loading of fonts that are also installed on the system. |
| 1446 | - Fix shaping of Arabic Presentation Forms. |
| 1447 | - Fix build with wide chars. |
| 1448 | |
| 1449 | CoreText shaper: |
| 1450 | - Support user features. |
| 1451 | |
| 1452 | Source changes: |
| 1453 | - hb_face_t code moved to hb-face.h / hb-face.cc. |
| 1454 | - Added hb-deprecated.h. |
| 1455 | |
| 1456 | API changes: |
| 1457 | - Added HB_DISABLE_DEPRECATED. |
| 1458 | - Deprecated HB_SCRIPT_CANADIAN_ABORIGINAL; replaced by |
| 1459 | HB_SCRIPT_CANADIAN_SYLLABICS. |
| 1460 | - Deprecated HB_BUFFER_FLAGS_DEFAULT; replaced by |
| 1461 | HB_BUFFER_FLAG_DEFAULT. |
| 1462 | - Deprecated HB_BUFFER_SERIALIZE_FLAGS_DEFAULT; replaced by |
| 1463 | HB_BUFFER_SERIALIZE_FLAG_DEFAULT. |
| 1464 | |
| 1465 | |
Behdad Esfahbod | 2b78d67 | 2013-07-16 16:06:27 -0400 | [diff] [blame] | 1466 | Overview of changes leading to 0.9.19 |
| 1467 | Tuesday, July 16, 2013 |
| 1468 | ===================================== |
| 1469 | |
| 1470 | - Build fixes. |
| 1471 | - Better handling of multiple variation selectors in a row. |
| 1472 | - Pass on variation selector to GSUB if not consumed by cmap. |
| 1473 | - Fix undefined memory access. |
| 1474 | - Add Javanese config to Indic shaper. |
| 1475 | - Misc bug fixes. |
| 1476 | |
Behdad Esfahbod | 4014aa4 | 2013-05-28 17:28:59 -0400 | [diff] [blame] | 1477 | Overview of changes leading to 0.9.18 |
| 1478 | Tuesday, May 28, 2013 |
| 1479 | ===================================== |
| 1480 | |
| 1481 | New build system: |
| 1482 | |
| 1483 | - All unneeded code is all disabled by default, |
| 1484 | |
| 1485 | - Uniscribe and CoreText shapers can be enabled with their --with options, |
| 1486 | |
| 1487 | - icu_le and old shapers cannot be enabled for now, |
| 1488 | |
| 1489 | - glib, freetype, and cairo will be detected automatically. |
| 1490 | They can be force on/off'ed with their --with options, |
| 1491 | |
| 1492 | - icu and graphite2 are default off, can be enabled with their --with |
| 1493 | options, |
| 1494 | |
| 1495 | Moreover, ICU support is now build into a separate library: |
| 1496 | libharfbuzz-icu.so, and a new harfbuzz-icu.pc is shipped for it. |
| 1497 | Distros can enable ICU now without every application on earth |
| 1498 | getting linked to via libharfbuzz.so. |
| 1499 | |
| 1500 | For distros I recommend that they make sure they are building --with-glib |
| 1501 | --with-freetype --with-cairo, --with-icu, and optionally --with-graphite2; |
| 1502 | And package harfbuzz and harfbuzz-icu separately. |
| 1503 | |
| 1504 | |
Behdad Esfahbod | f1b02f4 | 2013-05-20 09:23:58 -0400 | [diff] [blame] | 1505 | Overview of changes leading to 0.9.17 |
| 1506 | Monday, May 20, 2013 |
| 1507 | ===================================== |
| 1508 | |
| 1509 | - Build fixes. |
| 1510 | - Fix bug in hb_set_get_min(). |
| 1511 | - Fix regression with Arabic mark positioning / width-zeroing. |
| 1512 | |
Behdad Esfahbod | a408d23 | 2013-04-19 16:32:06 -0400 | [diff] [blame] | 1513 | Overview of changes leading to 0.9.16 |
| 1514 | Friday, April 19, 2013 |
| 1515 | ===================================== |
| 1516 | |
| 1517 | - Major speedup in OpenType lookup processing. With the Amiri |
| 1518 | Arabic font, this release is over 3x faster than previous |
| 1519 | release. All scripts / languages should see this speedup. |
| 1520 | |
| 1521 | - New --num-iterations option for hb-shape / hb-view; useful for |
| 1522 | profiling. |
| 1523 | |
Behdad Esfahbod | 22e4745 | 2013-04-05 18:02:43 -0400 | [diff] [blame] | 1524 | Overview of changes leading to 0.9.15 |
Behdad Esfahbod | a408d23 | 2013-04-19 16:32:06 -0400 | [diff] [blame] | 1525 | Friday, April 05, 2013 |
Behdad Esfahbod | 22e4745 | 2013-04-05 18:02:43 -0400 | [diff] [blame] | 1526 | ===================================== |
| 1527 | |
| 1528 | - Build fixes. |
| 1529 | - Fix crasher in graphite2 shaper. |
| 1530 | - Fix Arabic mark width zeroing regression. |
| 1531 | - Don't compose Hangul jamo into Unicode syllables. |
| 1532 | |
| 1533 | |
Behdad Esfahbod | f872a17 | 2013-03-21 13:38:06 -0400 | [diff] [blame] | 1534 | Overview of changes leading to 0.9.14 |
| 1535 | Thursday, March 21, 2013 |
| 1536 | ===================================== |
| 1537 | |
| 1538 | - Build fixes. |
| 1539 | - Fix time-consuming sanitize with malicious fonts. |
| 1540 | - Implement hb_buffer_deserialize_glyphs() for both json and text. |
| 1541 | - Do not ignore Hangul filler characters. |
| 1542 | - Indic fixes: |
| 1543 | * Fix Malayalam pre-base reordering interaction with post-forms. |
| 1544 | * Further adjust ZWJ handling. Should fix known regressions from |
| 1545 | 0.9.13. |
| 1546 | |
| 1547 | |
Behdad Esfahbod | 05686b5 | 2013-02-25 18:19:20 -0500 | [diff] [blame] | 1548 | Overview of changes leading to 0.9.13 |
| 1549 | Thursday, February 25, 2013 |
| 1550 | ===================================== |
| 1551 | |
| 1552 | - Build fixes. |
| 1553 | - Ngapi HarfBuzz Hackfest in London (February 2013): |
| 1554 | * Fixed all known Indic bugs, |
| 1555 | * New Win8-style Myanmar shaper, |
| 1556 | * New South-East Asian shaper for Tai Tham, Cham, and New Tai Lue, |
| 1557 | * Smartly ignore Default_Ignorable characters (joiners, etc) wheb |
| 1558 | matching GSUB/GPOS lookups, |
| 1559 | * Fix 'Phags-Pa U+A872 shaping, |
| 1560 | * Fix partial disabling of default-on features, |
| 1561 | * Allow disabling of TrueType kerning. |
| 1562 | - Fix possible crasher with broken fonts with overlapping tables. |
| 1563 | - Removed generated files from git again. So, one needs ragel to |
| 1564 | bootstrap from the git tree. |
| 1565 | |
| 1566 | API changes: |
| 1567 | - hb_shape() and related APIs now abort if buffer direction is |
| 1568 | HB_DIRECTION_INVALID. Previously, hb_shape() was calling |
| 1569 | hb_buffer_guess_segment_properties() on the buffer before |
| 1570 | shaping. The heuristics in that function are fragile. If the |
| 1571 | user really wants the old behvaior, they can call that function |
| 1572 | right before calling hb_shape() to get the old behavior. |
| 1573 | - hb_blob_create_sub_blob() always creates sub-blob with |
| 1574 | HB_MEMORY_MODE_READONLY. See comments for the reason. |
| 1575 | |
| 1576 | |
Behdad Esfahbod | 09b5393 | 2013-01-18 17:10:47 -0600 | [diff] [blame] | 1577 | Overview of changes leading to 0.9.12 |
| 1578 | Thursday, January 18, 2013 |
| 1579 | ===================================== |
| 1580 | |
| 1581 | - Build fixes for Sun compiler. |
| 1582 | - Minor bug fix. |
| 1583 | |
Behdad Esfahbod | cf81fb3 | 2013-01-10 09:06:34 -0600 | [diff] [blame] | 1584 | Overview of changes leading to 0.9.11 |
| 1585 | Thursday, January 10, 2013 |
| 1586 | ===================================== |
| 1587 | |
| 1588 | - Build fixes. |
| 1589 | - Fix GPOS mark attachment with null Anchor offsets. |
| 1590 | - [Indic] Fix old-spec reordering of viramas if sequence ends in one. |
| 1591 | - Fix multi-threaded shaper data creation crash. |
| 1592 | - Add atomic ops for Solaris. |
| 1593 | |
| 1594 | API changes: |
| 1595 | - Rename hb_buffer_clear() to hb_buffer_clear_contents(). |
| 1596 | |
| 1597 | |
Behdad Esfahbod | 34e6c3e | 2013-01-03 00:14:24 -0600 | [diff] [blame] | 1598 | Overview of changes leading to 0.9.10 |
| 1599 | Thursday, January 3, 2013 |
| 1600 | ===================================== |
| 1601 | |
| 1602 | - [Indic] Fixed rendering of Malayalam dot-reph |
| 1603 | - Updated OT language tags. |
| 1604 | - Updated graphite2 backend. |
| 1605 | - Improved hb_ot_layout_get_size_params() logic. |
| 1606 | - Improve hb-shape/hb-view help output. |
| 1607 | - Fixed hb-set.h implementation to not crash. |
| 1608 | - Fixed various issues with hb_ot_layout_collect_lookups(). |
| 1609 | - Various build fixes. |
| 1610 | |
| 1611 | New API: |
| 1612 | |
| 1613 | hb_graphite2_face_get_gr_face() |
| 1614 | hb_graphite2_font_get_gr_font() |
| 1615 | hb_coretext_face_get_cg_font() |
| 1616 | |
| 1617 | Modified API: |
| 1618 | |
| 1619 | hb_ot_layout_get_size_params() |
| 1620 | |
| 1621 | |
Behdad Esfahbod | c6408a1 | 2012-12-05 17:36:52 -0500 | [diff] [blame] | 1622 | Overview of changes leading to 0.9.9 |
| 1623 | Wednesday, December 5, 2012 |
| 1624 | ==================================== |
| 1625 | |
| 1626 | - Fix build on Windows. |
| 1627 | - Minor improvements. |
| 1628 | |
| 1629 | |
Behdad Esfahbod | a52f51b | 2012-12-04 15:43:38 -0500 | [diff] [blame] | 1630 | Overview of changes leading to 0.9.8 |
| 1631 | Tuesday, December 4, 2012 |
| 1632 | ==================================== |
| 1633 | |
| 1634 | |
| 1635 | - Actually implement hb_shape_plan_get_shaper (). |
| 1636 | - Make UCDB data tables const. |
| 1637 | - Lots of internal refactoring in OTLayout tables. |
| 1638 | - Flesh out hb_ot_layout_lookup_collect_glyphs(). |
| 1639 | |
| 1640 | New API: |
| 1641 | |
| 1642 | hb_ot_layout_collect_lookups() |
| 1643 | hb_ot_layout_get_size_params() |
| 1644 | |
| 1645 | |
Behdad Esfahbod | 4c89635 | 2012-11-21 01:20:56 -0500 | [diff] [blame] | 1646 | Overview of changes leading to 0.9.7 |
| 1647 | Sunday, November 21, 2012 |
| 1648 | ==================================== |
| 1649 | |
| 1650 | |
| 1651 | HarfBuzz "All-You-Can-Eat-Sushi" (aka Vancouver) Hackfest and follow-on fixes. |
| 1652 | |
| 1653 | - Fix Arabic contextual joining using pre-context text. |
| 1654 | - Fix Sinhala "split matra" mess. |
| 1655 | - Fix Khmer shaping with broken fonts. |
| 1656 | - Implement Thai "PUA" shaping for old fonts. |
| 1657 | - Do NOT route Kharoshthi script through the Indic shaper. |
| 1658 | - Disable fallback positioning for Indic and Thai shapers. |
| 1659 | - Misc fixes. |
| 1660 | |
| 1661 | |
| 1662 | hb-shape / hb-view changes: |
| 1663 | |
| 1664 | - Add --text-before and --text-after |
| 1665 | - Add --bot / --eot / --preserve-default-ignorables |
| 1666 | - hb-shape --output-format=json |
| 1667 | |
| 1668 | |
| 1669 | New API: |
| 1670 | |
| 1671 | hb_buffer_clear() |
| 1672 | |
| 1673 | hb_buffer_flags_t |
| 1674 | |
| 1675 | HB_BUFFER_FLAGS_DEFAULT |
| 1676 | HB_BUFFER_FLAG_BOT |
| 1677 | HB_BUFFER_FLAG_EOT |
| 1678 | HB_BUFFER_FLAG_PRESERVE_DEFAULT_IGNORABLES |
| 1679 | |
| 1680 | hb_buffer_set_flags() |
| 1681 | hb_buffer_get_flags() |
| 1682 | |
| 1683 | HB_BUFFER_SERIALIZE_FLAGS |
| 1684 | hb_buffer_serialize_glyphs() |
| 1685 | hb_buffer_deserialize_glyphs() |
| 1686 | hb_buffer_serialize_list_formats() |
| 1687 | |
| 1688 | hb_set_add_range() |
| 1689 | hb_set_del_range() |
| 1690 | hb_set_get_population() |
| 1691 | hb_set_next_range() |
| 1692 | |
| 1693 | hb_face_[sg]et_glyph_count() |
| 1694 | |
| 1695 | hb_segment_properties_t |
| 1696 | HB_SEGMENT_PROPERTIES_DEFAULT |
| 1697 | hb_segment_properties_equal() |
| 1698 | hb_segment_properties_hash() |
| 1699 | |
| 1700 | hb_buffer_set_segment_properties() |
| 1701 | hb_buffer_get_segment_properties() |
| 1702 | |
| 1703 | hb_ot_layout_glyph_class_t |
| 1704 | hb_ot_layout_get_glyph_class() |
| 1705 | hb_ot_layout_get_glyphs_in_class() |
| 1706 | |
| 1707 | hb_shape_plan_t |
| 1708 | hb_shape_plan_create() |
| 1709 | hb_shape_plan_create_cached() |
| 1710 | hb_shape_plan_get_empty() |
| 1711 | hb_shape_plan_reference() |
| 1712 | hb_shape_plan_destroy() |
| 1713 | hb_shape_plan_set_user_data() |
| 1714 | hb_shape_plan_get_user_data() |
| 1715 | hb_shape_plan_execute() |
| 1716 | hb_shape_plan_get_shaper() |
| 1717 | |
| 1718 | hb_ot_shape_plan_collect_lookups() |
| 1719 | |
| 1720 | |
| 1721 | API changes: |
| 1722 | |
| 1723 | - Remove "mask" parameter from hb_buffer_add(). |
| 1724 | - Rename hb_ot_layout_would_substitute_lookup() and hb_ot_layout_substitute_closure_lookup(). |
| 1725 | - hb-set.h API const correction. |
| 1726 | - Renamed hb_set_min/max() to hb_set_get_min/max(). |
| 1727 | - Rename hb_ot_layout_feature_get_lookup_indexes() to hb_ot_layout_feature_get_lookups(). |
| 1728 | - Rename hb_buffer_guess_properties() to hb_buffer_guess_segment_properties(). |
| 1729 | |
| 1730 | |
| 1731 | |
Behdad Esfahbod | da43a92 | 2012-11-13 13:48:26 -0800 | [diff] [blame] | 1732 | Overview of changes leading to 0.9.6 |
| 1733 | Sunday, November 13, 2012 |
| 1734 | ==================================== |
| 1735 | |
| 1736 | - Don't clear pre-context text if no new context is provided. |
| 1737 | - Fix ReverseChainingSubstLookup, which was totally borked. |
| 1738 | - Adjust output format of hb-shape a bit. |
| 1739 | - Include config.h.in in-tree. Makes it easier for alternate build systems. |
| 1740 | - Fix hb_buffer_set_length(buffer, 0) invalid memory allocation. |
| 1741 | - Use ICU LayoutEngine's C API instead of C++. Avoids much headache. |
| 1742 | - Drop glyphs for all of Unicode Default_Ignorable characters. |
| 1743 | - Misc build fixes. |
| 1744 | |
| 1745 | Arabic shaper: |
| 1746 | - Enable 'dlig' and 'mset' features in Arabic shaper. |
| 1747 | - Implement 'Phags-pa shaping, improve Mongolian. |
| 1748 | |
| 1749 | Indic shaper: |
| 1750 | - Decompose Sinhala split matras the way old HarfBuzz / Pango did. |
| 1751 | - Initial support for Consonant Medials. |
| 1752 | - Start adding new-style Myanmar shaping. |
| 1753 | - Make reph and 'pref' logic introspect the font. |
| 1754 | - Route Meetei-Mayek through the Indic shaper. |
| 1755 | - Don't apply 'liga' in Indic shaper. |
| 1756 | - Improve Malayalam pre-base reordering Ra interaction with Chillus. |
| 1757 | |
| 1758 | |
| 1759 | |
Behdad Esfahbod | 13c0584 | 2012-10-14 18:37:09 -0500 | [diff] [blame] | 1760 | Overview of changes leading to 0.9.5 |
| 1761 | Sunday, October 14, 2012 |
| 1762 | ==================================== |
| 1763 | |
| 1764 | - Synthetic-GSUB Arabic fallback shaping. |
| 1765 | |
| 1766 | - Misc Indic improvements. |
| 1767 | |
| 1768 | - Add build system support for pthread. |
| 1769 | |
| 1770 | - Imported UCDN for in-tree Unicode callbacks implementation. |
| 1771 | |
| 1772 | - Context-aware Arabic joining. |
| 1773 | |
| 1774 | - Misc other fixes. |
| 1775 | |
| 1776 | - New API: |
| 1777 | |
| 1778 | hb_feature_to/from-string() |
| 1779 | hb_buffer_[sg]et_content_type() |
| 1780 | |
| 1781 | |
| 1782 | |
Behdad Esfahbod | f7e81ce | 2012-09-04 15:32:37 -0400 | [diff] [blame] | 1783 | Overview of changes leading to 0.9.4 |
| 1784 | Tuesday, Sep 03, 2012 |
| 1785 | ==================================== |
| 1786 | |
| 1787 | - Indic improvements with old-spec Malayalam. |
| 1788 | |
| 1789 | - Better fallback glyph positioning, specially with Thai / Lao marks. |
| 1790 | |
| 1791 | - Implement dotted-circle insertion. |
| 1792 | |
| 1793 | - Better Arabic fallback shaping / ligation. |
| 1794 | |
| 1795 | - Added ICU LayoutEngine backend for testing. Call it by the 'icu_le' name. |
| 1796 | |
| 1797 | - Misc fixes. |
| 1798 | |
| 1799 | |
| 1800 | |
Behdad Esfahbod | 7fe00d1 | 2012-08-18 13:59:46 -0400 | [diff] [blame] | 1801 | Overview of changes leading to 0.9.3 |
| 1802 | Friday, Aug 18, 2012 |
| 1803 | ==================================== |
| 1804 | |
| 1805 | - Fixed fallback mark positioning for left-to-right text. |
| 1806 | |
| 1807 | - Improve mark positioning for the remaining combining classes. |
| 1808 | |
| 1809 | - Unbreak Thai and fallback Arabic shaping. |
| 1810 | |
| 1811 | - Port Arabic shaper to shape-plan caching. |
| 1812 | |
| 1813 | - Use new ICU normalizer functions. |
| 1814 | |
| 1815 | |
| 1816 | |
Behdad Esfahbod | e297ee4 | 2012-08-10 14:49:37 -0400 | [diff] [blame] | 1817 | Overview of changes leading to 0.9.2 |
Behdad Esfahbod | 9fe7605 | 2012-08-15 17:24:28 -0400 | [diff] [blame] | 1818 | Friday, Aug 10, 2012 |
Behdad Esfahbod | e297ee4 | 2012-08-10 14:49:37 -0400 | [diff] [blame] | 1819 | ==================================== |
| 1820 | |
| 1821 | - Over a thousand commits! This is the first major release of HarfBuzz. |
| 1822 | |
| 1823 | - HarfBuzz is feature-complete now! It should be in par, or better, than |
| 1824 | both Pango's shapers and old HarfBuzz / Qt shapers. |
| 1825 | |
| 1826 | - New Indic shaper, supporting main Indic scripts, Sinhala, and Khmer. |
| 1827 | |
| 1828 | - Improved Arabic shaper, with fallback Arabic shaping, supporting Arabic, |
| 1829 | Sinhala, N'ko, Mongolian, and Mandaic. |
| 1830 | |
| 1831 | - New Thai / Lao shaper. |
| 1832 | |
| 1833 | - Tibetan / Hangul support in the generic shaper. |
| 1834 | |
| 1835 | - Synthetic GDEF support for fonts without a GDEF table. |
| 1836 | |
| 1837 | - Fallback mark positioning for fonts without a GPOS table. |
| 1838 | |
| 1839 | - Unicode normalization shaping heuristic during glyph mapping. |
| 1840 | |
| 1841 | - New experimental Graphite2 backend. |
| 1842 | |
| 1843 | - New Uniscribe backend (primarily for testing). |
| 1844 | |
| 1845 | - New CoreText backend (primarily for testing). |
| 1846 | |
| 1847 | - Major optimization and speedup. |
| 1848 | |
| 1849 | - Test suites and testing infrastructure (work in progress). |
| 1850 | |
| 1851 | - Greatly improved hb-view cmdline tool. |
| 1852 | |
| 1853 | - hb-shape cmdline tool. |
| 1854 | |
| 1855 | - Unicode 6.1 support. |
| 1856 | |
| 1857 | Summary of API changes: |
| 1858 | |
| 1859 | o Changed API: |
| 1860 | |
| 1861 | - Users are expected to only include main header files now (ie. hb.h, |
| 1862 | hb-glib.h, hb-ft.h, ...) |
| 1863 | |
| 1864 | - All struct tag names had their initial underscore removed. |
| 1865 | Ie. "struct _hb_buffer_t" is "struct hb_buffer_t" now. |
| 1866 | |
| 1867 | - All set_user_data() functions now take a "replace" boolean parameter. |
| 1868 | |
| 1869 | - hb_buffer_create() takes zero arguments now. |
| 1870 | Use hb_buffer_pre_allocate() to pre-allocate. |
| 1871 | |
| 1872 | - hb_buffer_add_utf*() now accept -1 for length parameteres, |
| 1873 | meaning "nul-terminated". |
| 1874 | |
| 1875 | - hb_direction_t enum values changed. |
| 1876 | |
| 1877 | - All *_from_string() APIs now take a length parameter to allow for |
| 1878 | non-nul-terminated strings. A -1 length means "nul-terminated". |
| 1879 | |
| 1880 | - Typedef for hb_language_t changed. |
| 1881 | |
| 1882 | - hb_get_table_func_t renamed to hb_reference_table_func_t. |
| 1883 | |
| 1884 | - hb_ot_layout_table_choose_script() |
| 1885 | |
| 1886 | - Various renames in hb-unicode.h. |
| 1887 | |
| 1888 | o New API: |
| 1889 | |
| 1890 | - hb_buffer_guess_properties() |
| 1891 | Automatically called by hb_shape(). |
| 1892 | |
| 1893 | - hb_buffer_normalize_glyphs() |
| 1894 | |
| 1895 | - hb_tag_from_string() |
| 1896 | |
| 1897 | - hb-coretext.h |
| 1898 | |
| 1899 | - hb-uniscribe.h |
| 1900 | |
| 1901 | - hb_face_reference_blob() |
| 1902 | - hb_face_[sg]et_index() |
| 1903 | - hb_face_set_upem() |
| 1904 | |
| 1905 | - hb_font_get_glyph_name_func_t |
| 1906 | hb_font_get_glyph_from_name_func_t |
| 1907 | hb_font_funcs_set_glyph_name_func() |
| 1908 | hb_font_funcs_set_glyph_from_name_func() |
| 1909 | hb_font_get_glyph_name() |
| 1910 | hb_font_get_glyph_from_name() |
| 1911 | hb_font_glyph_to_string() |
| 1912 | hb_font_glyph_from_string() |
| 1913 | |
| 1914 | - hb_font_set_funcs_data() |
| 1915 | |
| 1916 | - hb_ft_font_set_funcs() |
| 1917 | - hb_ft_font_get_face() |
| 1918 | |
| 1919 | - hb-gobject.h (work in progress) |
| 1920 | |
| 1921 | - hb_ot_shape_glyphs_closure() |
| 1922 | hb_ot_layout_substitute_closure_lookup() |
| 1923 | |
| 1924 | - hb-set.h |
| 1925 | |
| 1926 | - hb_shape_full() |
| 1927 | |
| 1928 | - hb_unicode_combining_class_t |
| 1929 | |
| 1930 | - hb_unicode_compose_func_t |
| 1931 | hb_unicode_decompose_func_t |
| 1932 | hb_unicode_decompose_compatibility_func_t |
| 1933 | hb_unicode_funcs_set_compose_func() |
| 1934 | hb_unicode_funcs_set_decompose_func() |
| 1935 | hb_unicode_funcs_set_decompose_compatibility_func() |
| 1936 | hb_unicode_compose() |
| 1937 | hb_unicode_decompose() |
| 1938 | hb_unicode_decompose_compatibility() |
| 1939 | |
| 1940 | o Removed API: |
| 1941 | |
| 1942 | - hb_ft_get_font_funcs() |
| 1943 | |
| 1944 | - hb_ot_layout_substitute_start() |
| 1945 | hb_ot_layout_substitute_lookup() |
| 1946 | hb_ot_layout_substitute_finish() |
| 1947 | hb_ot_layout_position_start() |
| 1948 | hb_ot_layout_position_lookup() |
| 1949 | hb_ot_layout_position_finish() |
| 1950 | |
| 1951 | |
| 1952 | |
Behdad Esfahbod | f245576 | 2011-05-25 16:08:06 -0400 | [diff] [blame] | 1953 | Overview of changes leading to 0.6.0 |
| 1954 | Friday, May 27, 2011 |
| 1955 | ==================================== |
| 1956 | |
| 1957 | - Vertical text support in GPOS |
| 1958 | - Almost all API entries have unit tests now, under test/ |
| 1959 | - All thread-safety issues are fixed |
| 1960 | |
| 1961 | Summary of API changes follows. |
| 1962 | |
| 1963 | |
| 1964 | * Simple Types API: |
| 1965 | |
| 1966 | o New API: |
| 1967 | HB_LANGUAGE_INVALID |
| 1968 | hb_language_get_default() |
| 1969 | hb_direction_to_string() |
| 1970 | hb_direction_from_string() |
| 1971 | hb_script_get_horizontal_direction() |
| 1972 | HB_UNTAG() |
| 1973 | |
| 1974 | o Renamed API: |
| 1975 | hb_category_t renamed to hb_unicode_general_category_t |
| 1976 | |
| 1977 | o Changed API: |
| 1978 | hb_language_t is a typed pointers now |
| 1979 | |
| 1980 | o Removed API: |
| 1981 | HB_TAG_STR() |
| 1982 | |
| 1983 | |
| 1984 | * Use ISO 15924 tags for hb_script_t: |
| 1985 | |
| 1986 | o New API: |
| 1987 | hb_script_from_iso15924_tag() |
| 1988 | hb_script_to_iso15924_tag() |
| 1989 | hb_script_from_string() |
| 1990 | |
| 1991 | o Changed API: |
| 1992 | HB_SCRIPT_* enum members changed value. |
| 1993 | |
| 1994 | |
| 1995 | * Buffer API streamlined: |
| 1996 | |
| 1997 | o New API: |
| 1998 | hb_buffer_reset() |
| 1999 | hb_buffer_set_length() |
| 2000 | hb_buffer_allocation_successful() |
| 2001 | |
| 2002 | o Renamed API: |
| 2003 | hb_buffer_ensure() renamed to hb_buffer_pre_allocate() |
| 2004 | hb_buffer_add_glyph() renamed to hb_buffer_add() |
| 2005 | |
| 2006 | o Removed API: |
| 2007 | hb_buffer_clear() |
| 2008 | hb_buffer_clear_positions() |
| 2009 | |
| 2010 | o Changed API: |
| 2011 | hb_buffer_get_glyph_infos() takes an out length parameter now |
| 2012 | hb_buffer_get_glyph_positions() takes an out length parameter now |
| 2013 | |
| 2014 | |
| 2015 | * Blob API streamlined: |
| 2016 | |
| 2017 | o New API: |
| 2018 | hb_blob_get_data() |
| 2019 | hb_blob_get_data_writable() |
| 2020 | |
| 2021 | o Renamed API: |
| 2022 | hb_blob_create_empty() renamed to hb_blob_get_empty() |
| 2023 | |
| 2024 | o Removed API: |
| 2025 | hb_blob_lock() |
| 2026 | hb_blob_unlock() |
| 2027 | hb_blob_is_writable() |
| 2028 | hb_blob_try_writable() |
| 2029 | |
| 2030 | o Changed API: |
| 2031 | hb_blob_create() takes user_data before destroy now |
| 2032 | |
| 2033 | |
| 2034 | * Unicode functions API: |
| 2035 | |
| 2036 | o Unicode function vectors can subclass other unicode function vectors now. |
| 2037 | Unimplemented callbacks in the subclass automatically chainup to the parent. |
| 2038 | |
| 2039 | o All hb_unicode_funcs_t callbacks take a user_data now. Their setters |
| 2040 | take a user_data and its respective destroy callback. |
| 2041 | |
| 2042 | o New API: |
| 2043 | hb_unicode_funcs_get_empty() |
| 2044 | hb_unicode_funcs_get_default() |
| 2045 | hb_unicode_funcs_get_parent() |
| 2046 | |
| 2047 | o Changed API: |
| 2048 | hb_unicode_funcs_create() now takes a parent_funcs. |
| 2049 | |
| 2050 | o Removed func getter functions: |
| 2051 | hb_unicode_funcs_get_mirroring_func() |
| 2052 | hb_unicode_funcs_get_general_category_func() |
| 2053 | hb_unicode_funcs_get_script_func() |
| 2054 | hb_unicode_funcs_get_combining_class_func() |
| 2055 | hb_unicode_funcs_get_eastasian_width_func() |
| 2056 | |
| 2057 | |
| 2058 | * Face API: |
| 2059 | |
| 2060 | o Renamed API: |
| 2061 | hb_face_get_table() renamed to hb_face_reference_table() |
| 2062 | hb_face_create_for_data() renamed to hb_face_create() |
| 2063 | |
| 2064 | o Changed API: |
| 2065 | hb_face_create_for_tables() takes user_data before destroy now |
| 2066 | hb_face_reference_table() returns empty blob instead of NULL |
| 2067 | hb_get_table_func_t accepts the face as first parameter now |
| 2068 | |
| 2069 | * Font API: |
| 2070 | |
| 2071 | o Fonts can subclass other fonts now. Unimplemented callbacks in the |
| 2072 | subclass automatically chainup to the parent. When chaining up, |
| 2073 | scale is adjusted if the parent font has a different scale. |
| 2074 | |
| 2075 | o All hb_font_funcs_t callbacks take a user_data now. Their setters |
| 2076 | take a user_data and its respective destroy callback. |
| 2077 | |
| 2078 | o New API: |
| 2079 | hb_font_get_parent() |
| 2080 | hb_font_funcs_get_empty() |
| 2081 | hb_font_create_sub_font() |
| 2082 | |
| 2083 | o Removed API: |
| 2084 | hb_font_funcs_copy() |
| 2085 | hb_font_unset_funcs() |
| 2086 | |
| 2087 | o Removed func getter functions: |
| 2088 | hb_font_funcs_get_glyph_func() |
| 2089 | hb_font_funcs_get_glyph_advance_func() |
| 2090 | hb_font_funcs_get_glyph_extents_func() |
| 2091 | hb_font_funcs_get_contour_point_func() |
| 2092 | hb_font_funcs_get_kerning_func() |
| 2093 | |
| 2094 | o Changed API: |
| 2095 | hb_font_create() takes a face and references it now |
| 2096 | hb_font_set_funcs() takes user_data before destroy now |
| 2097 | hb_font_set_scale() accepts signed integers now |
| 2098 | hb_font_get_contour_point_func_t now takes glyph first, then point_index |
| 2099 | hb_font_get_glyph_func_t returns a success boolean now |
| 2100 | |
| 2101 | |
| 2102 | * Changed object model: |
| 2103 | |
| 2104 | o All object types have a _get_empty() now: |
| 2105 | hb_blob_get_empty() |
| 2106 | hb_buffer_get_empty() |
| 2107 | hb_face_get_empty() |
| 2108 | hb_font_get_empty() |
| 2109 | hb_font_funcs_get_empty() |
| 2110 | hb_unicode_funcs_get_empty() |
| 2111 | |
| 2112 | o Added _set_user_data() and _get_user_data() for all object types: |
| 2113 | hb_blob_get_user_data() |
| 2114 | hb_blob_set_user_data() |
| 2115 | hb_buffer_get_user_data() |
| 2116 | hb_buffer_set_user_data() |
| 2117 | hb_face_get_user_data() |
| 2118 | hb_face_set_user_data() |
| 2119 | hb_font_funcs_get_user_data() |
| 2120 | hb_font_funcs_set_user_data() |
| 2121 | hb_font_get_user_data() |
| 2122 | hb_font_set_user_data() |
| 2123 | hb_unicode_funcs_get_user_data() |
| 2124 | hb_unicode_funcs_set_user_data() |
| 2125 | |
| 2126 | o Removed the _get_reference_count() from all object types: |
| 2127 | hb_blob_get_reference_count() |
| 2128 | hb_buffer_get_reference_count() |
| 2129 | hb_face_get_reference_count() |
| 2130 | hb_font_funcs_get_reference_count() |
| 2131 | hb_font_get_reference_count() |
| 2132 | hb_unicode_funcs_get_reference_count() |
| 2133 | |
| 2134 | o Added _make_immutable() and _is_immutable() for all object types except for buffer: |
| 2135 | hb_blob_make_immutable() |
| 2136 | hb_blob_is_immutable() |
| 2137 | hb_face_make_immutable() |
| 2138 | hb_face_is_immutable() |
| 2139 | |
| 2140 | |
| 2141 | * Changed API for vertical text support |
| 2142 | |
| 2143 | o The following callbacks where removed: |
| 2144 | hb_font_get_glyph_advance_func_t |
| 2145 | hb_font_get_kerning_func_t |
| 2146 | |
| 2147 | o The following new callbacks added instead: |
| 2148 | hb_font_get_glyph_h_advance_func_t |
| 2149 | hb_font_get_glyph_v_advance_func_t |
| 2150 | hb_font_get_glyph_h_origin_func_t |
| 2151 | hb_font_get_glyph_v_origin_func_t |
| 2152 | hb_font_get_glyph_h_kerning_func_t |
| 2153 | hb_font_get_glyph_v_kerning_func_t |
| 2154 | |
| 2155 | o The following API removed as such: |
| 2156 | hb_font_funcs_set_glyph_advance_func() |
| 2157 | hb_font_funcs_set_kerning_func() |
| 2158 | hb_font_get_glyph_advance() |
| 2159 | hb_font_get_kerning() |
| 2160 | |
| 2161 | o New API added instead: |
| 2162 | hb_font_funcs_set_glyph_h_advance_func() |
| 2163 | hb_font_funcs_set_glyph_v_advance_func() |
| 2164 | hb_font_funcs_set_glyph_h_origin_func() |
| 2165 | hb_font_funcs_set_glyph_v_origin_func() |
| 2166 | hb_font_funcs_set_glyph_h_kerning_func() |
| 2167 | hb_font_funcs_set_glyph_v_kerning_func() |
| 2168 | hb_font_get_glyph_h_advance() |
| 2169 | hb_font_get_glyph_v_advance() |
| 2170 | hb_font_get_glyph_h_origin() |
| 2171 | hb_font_get_glyph_v_origin() |
| 2172 | hb_font_get_glyph_h_kerning() |
| 2173 | hb_font_get_glyph_v_kerning() |
| 2174 | |
| 2175 | o The following higher-leve API added for convenience: |
| 2176 | hb_font_get_glyph_advance_for_direction() |
| 2177 | hb_font_get_glyph_origin_for_direction() |
| 2178 | hb_font_add_glyph_origin_for_direction() |
| 2179 | hb_font_subtract_glyph_origin_for_direction() |
| 2180 | hb_font_get_glyph_kerning_for_direction() |
| 2181 | hb_font_get_glyph_extents_for_origin() |
| 2182 | hb_font_get_glyph_contour_point_for_origin() |
| 2183 | |
| 2184 | |
| 2185 | * OpenType Layout API: |
| 2186 | |
| 2187 | o New API: |
| 2188 | hb_ot_layout_position_start() |
| 2189 | hb_ot_layout_substitute_start() |
| 2190 | hb_ot_layout_substitute_finish() |
| 2191 | |
| 2192 | |
| 2193 | * Glue code: |
| 2194 | |
| 2195 | o New API: |
| 2196 | hb_glib_script_to_script() |
| 2197 | hb_glib_script_from_script() |
| 2198 | hb_icu_script_to_script() |
| 2199 | hb_icu_script_from_script() |
| 2200 | |
| 2201 | |
| 2202 | * Version API added: |
| 2203 | |
| 2204 | o New API: |
| 2205 | HB_VERSION_MAJOR |
| 2206 | HB_VERSION_MINOR |
| 2207 | HB_VERSION_MICRO |
| 2208 | HB_VERSION_STRING |
| 2209 | HB_VERSION_CHECK() |
| 2210 | hb_version() |
| 2211 | hb_version_string() |
| 2212 | hb_version_check() |
| 2213 | |
| 2214 | |