Khaled Hosny | fcb9e59 | 2023-08-01 00:57:06 +0300 | [diff] [blame] | 1 | Overview of changes leading to 8.1.0 |
| 2 | Tuesday, August 1, 2023 |
| 3 | ==================================== |
| 4 | - Fix long-standing build issue with the AIX compiler and older Apple clang. |
| 5 | |
| 6 | - Revert optimization that could cause timeout during subsetting with malicious fonts. |
| 7 | |
| 8 | - More optimization work: |
| 9 | - 45% speed up in shaping Noto Duployan font. |
| 10 | - 10% speed up in subsetting Noto Duployan font. |
| 11 | - Another 8% speed up in shaping Gulzar. |
| 12 | - 5% speed up in loading Roboto. |
| 13 | |
| 14 | - New API: |
| 15 | +hb_ot_layout_collect_features_map() |
| 16 | |
| 17 | |
Khaled Hosny | d160d93 | 2023-07-12 08:27:25 +0300 | [diff] [blame] | 18 | Overview of changes leading to 8.0.1 |
| 19 | Wednesday, July 12, 2023 |
| 20 | ==================================== |
Khaled Hosny | 5a65ede | 2023-07-12 10:18:31 +0300 | [diff] [blame] | 21 | - Build fix on 32-bit ARM. |
Khaled Hosny | d160d93 | 2023-07-12 08:27:25 +0300 | [diff] [blame] | 22 | |
| 23 | - More speed optimizations: |
Khaled Hosny | fcb9e59 | 2023-08-01 00:57:06 +0300 | [diff] [blame] | 24 | - 60% speed up in retain-gid (used for IFT) subsetting of SourceHanSans-VF. |
Khaled Hosny | d160d93 | 2023-07-12 08:27:25 +0300 | [diff] [blame] | 25 | - 16% speed up in retain-gid (used for IFT) subsetting of NotoSansCJKkr. |
Khaled Hosny | fcb9e59 | 2023-08-01 00:57:06 +0300 | [diff] [blame] | 26 | - 38% speed up in subsetting (beyond-64k) mega-merged Noto. |
Khaled Hosny | d160d93 | 2023-07-12 08:27:25 +0300 | [diff] [blame] | 27 | |
| 28 | |
Khaled Hosny | b430553 | 2023-07-09 02:54:30 +0300 | [diff] [blame] | 29 | Overview of changes leading to 8.0.0 |
| 30 | Sunday, July 9, 2023 |
| 31 | ==================================== |
| 32 | - New, experimental, WebAssembly (WASM) shaper, that provides greater |
| 33 | flexibility over OpenType/AAT/Graphite shaping, using WebAssembly embedded |
| 34 | inside the font file. Currently WASM shaper is disabled by default and needs |
| 35 | to be enabled at build time. For details, see: |
| 36 | |
| 37 | https://github.com/harfbuzz/harfbuzz/blob/main/docs/wasm-shaper.md |
| 38 | |
| 39 | For example fonts making use of the WASM shaper, see: |
| 40 | |
Khaled Hosny | 5a65ede | 2023-07-12 10:18:31 +0300 | [diff] [blame] | 41 | https://github.com/harfbuzz/harfbuzz-wasm-examples |
Khaled Hosny | b430553 | 2023-07-09 02:54:30 +0300 | [diff] [blame] | 42 | |
| 43 | - Improvements to Experimental features introduced in earlier releases: |
| 44 | - Support for subsetting beyond-64k and VarComposites fonts. |
| 45 | - Support for instancing variable fonts with cubic “glyf” table. |
| 46 | |
| 47 | - Many big speed optimizations: |
| 48 | - Up to 89% speedup loading variable fonts for shaping. |
| 49 | - Up to 88% speedup in small subsets of large (eg. CJK) fonts (both TTF and |
| 50 | OTF), essential for Incremental Font Transfer (IFT). |
| 51 | - Over 50% speedup in loading Roboto font for shaping. |
| 52 | - Up to 40% speed up in loading (sanitizing) complex fonts. |
| 53 | - 30% speed up in shaping Gulzar font. |
| 54 | - Over 25% speedup in glyph loading Roboto font. |
| 55 | - 10% speed up loading glyph shapes in VarComposite Hangul font. |
| 56 | - hb-hashmap optimizations & hashing improvements. |
| 57 | |
| 58 | - New macro HB_ALWAYS_INLINE. HarfBuzz now inlines functions more aggressively, |
| 59 | which results in some speedup at the expense of bigger code size. To disable |
| 60 | this feature define the macro to just inline. |
| 61 | |
| 62 | - New API: |
| 63 | +HB_CODEPOINT_INVALID |
| 64 | +hb_ot_layout_get_baseline2() |
| 65 | +hb_ot_layout_get_baseline_with_fallback2() |
| 66 | +hb_ot_layout_get_font_extents() |
| 67 | +hb_ot_layout_get_font_extents2() |
| 68 | +hb_subset_input_set_axis_range() |
| 69 | |
| 70 | |
Khaled Hosny | 4584bcd | 2023-05-10 00:20:25 +0300 | [diff] [blame] | 71 | Overview of changes leading to 7.3.0 |
| 72 | Tuesday, May 9, 2023 |
| 73 | ==================================== |
| 74 | - Speedup applying glyph variation in VarComposites fonts (over 40% speedup). |
| 75 | (Behdad Esfahbod) |
| 76 | - Speedup instancing some fonts (over 20% speedup in instancing RobotoFlex). |
| 77 | (Behdad Esfahbod) |
| 78 | - Speedup shaping some fonts (over 30% speedup in shaping Roboto). |
| 79 | (Behdad Esfahbod) |
| 80 | - Support subsetting VarComposites and beyond-64k fonts. (Behdad Esfahbod) |
| 81 | - New configuration macro HB_MINIMIZE_MEMORY_USAGE to favor optimizing memory |
| 82 | usage over speed. (Behdad Esfahbod) |
| 83 | - Supporting setting the mapping between old and new glyph indices during |
| 84 | subsetting. (Garret Rieger) |
| 85 | - Various fixes and improvements. |
| 86 | (Behdad Esfahbod, Denis Rochette, Garret Rieger, Han Seung Min, Qunxin Liu) |
| 87 | |
| 88 | - New API: |
| 89 | +hb_subset_input_old_to_new_glyph_mapping() |
| 90 | |
| 91 | |
Khaled Hosny | a321c4f | 2023-04-27 00:48:00 +0200 | [diff] [blame] | 92 | Overview of changes leading to 7.2.0 |
| 93 | Thursday, April 27, 2023 |
| 94 | ==================================== |
| 95 | - Add Tifinagh to the list of scripts that can natively be either right-to-left |
| 96 | or left-to-right, to improve handling of its glyph positioning. |
| 97 | (Simon Cozens) |
| 98 | - Return also single substitution from hb_ot_layout_lookup_get_glyph_alternates() |
| 99 | (Behdad Esfahbod) |
| 100 | - Fix 4.2.0 regression in applying across syllables in syllabic scripts. |
| 101 | (Behdad Esfahbod) |
| 102 | - Add flag to avoid glyph substitution closure during subsetting, and the |
| 103 | corresponding “--no-layout-closure” option to “hb-subset” command line tool. |
| 104 | (Garret Rieger) |
| 105 | - Support instancing COLRv1 table. (Qunxin Liu) |
| 106 | - Don’t drop used user-defined name table entries during subsetting. |
| 107 | (Qunxin Liu) |
| 108 | - Optimize handling of “gvar” table. (Behdad Esfahbod) |
| 109 | - Various subsetter bug fixes and improvements. (Garret Rieger, Qunxin Liu) |
| 110 | - Various documentation improvements. (Behdad Esfahbod, Josef Friedrich) |
| 111 | |
| 112 | - New API: |
| 113 | +HB_SUBSET_FLAGS_NO_LAYOUT_CLOSURE |
| 114 | +HB_UNICODE_COMBINING_CLASS_CCC132 |
| 115 | |
| 116 | - Deprecated API: |
| 117 | +HB_UNICODE_COMBINING_CLASS_CCC133 |
| 118 | |
| 119 | |
Khaled Hosny | 60841e2 | 2023-03-03 01:01:49 +0200 | [diff] [blame] | 120 | Overview of changes leading to 7.1.0 |
| 121 | Friday, March 3, 2023 |
| 122 | ==================================== |
| 123 | - New experimental hb_shape_justify() API that uses font variations to expand |
| 124 | or shrink the text to a given advance. (Behdad Esfahbod) |
| 125 | - Various build and bug fixes. (Behdad Esfahbod, Garret Rieger, Qunxin Liu) |
| 126 | |
| 127 | - New API: |
| 128 | +hb_font_set_variation() |
| 129 | |
Khaled Hosny | a321c4f | 2023-04-27 00:48:00 +0200 | [diff] [blame] | 130 | |
Khaled Hosny | 1d1f93a | 2023-02-20 15:54:12 +0200 | [diff] [blame] | 131 | Overview of changes leading to 7.0.1 |
| 132 | Monday, February 20, 2023 |
| 133 | ==================================== |
| 134 | - Various build and bug fixes. |
| 135 | |
| 136 | |
Khaled Hosny | 8bdaedd | 2023-02-11 23:44:58 +0200 | [diff] [blame] | 137 | Overview of changes leading to 7.0.0 |
| 138 | Saturday, February 11, 2023 |
| 139 | ==================================== |
| 140 | - New hb-paint API that is designed mainly to paint “COLRv1” glyphs, but can be |
| 141 | also used as a unified API to paint any of the glyph representations |
| 142 | supported by HarfBuzz (B/W outlines, color layers, or color bitmaps). |
| 143 | (Behdad Esfahbod, Matthias Clasen) |
| 144 | - New hb-cairo API for integrating with cairo graphics library. This is provided |
| 145 | as a separate harfbuzz-cairo library. (Behdad Esfahbod, Matthias Clasen) |
| 146 | - Support for instancing “CFF2” table. (Behdad Esfahbod) |
| 147 | - Support font emboldening. (Behdad Esfahbod) |
| 148 | - Support feature ranges with AAT shaping. (Behdad Esfahbod) |
| 149 | - Experimental support to cubic curves in “glyf” table, see |
| 150 | https://github.com/harfbuzz/boring-expansion-spec/blob/main/glyf1-cubicOutlines.md |
| 151 | for spec. (Behdad Esfahbod) |
| 152 | - Various subsetter improvements. (Garret Rieger, Qunxin Liu, Behdad Esfahbod) |
| 153 | - Various documentation improvements. |
| 154 | (Behdad Esfahbod, Matthias Clasen, Khaled Hosny) |
| 155 | - Significantly reduced memory use during shaping. (Behdad Esfahbod) |
| 156 | - Greatly reduced memory use during subsetting “CFF” table. (Behdad Esfahbod) |
| 157 | - New command line utility, hb-info, for querying various font information. |
| 158 | (Behdad Esfahbod, Matthias Clasen) |
| 159 | - New hb-shape/hb-view options: --glyphs, --color-palette, --font-bold, |
| 160 | --font-grade, and --named-instance. (Behdad Esfahbod) |
| 161 | - Miscellaneous fixes and improvements. |
| 162 | (Amir Masoud Abdol, Andres Salomon, Behdad Esfahbod, Chun-wei Fan, |
| 163 | Garret Rieger, Jens Kutilek, Khaled Hosny, Konstantin Käfer, Matthias Clasen, |
| 164 | Nirbheek Chauhan, Pedro J. Estébanez, Qunxin Liu, Sergei Trofimovich) |
| 165 | |
| 166 | - New API: |
| 167 | +HB_FONT_NO_VAR_NAMED_INSTANCE |
| 168 | +HB_PAINT_IMAGE_FORMAT_BGRA |
| 169 | +HB_PAINT_IMAGE_FORMAT_PNG |
| 170 | +HB_PAINT_IMAGE_FORMAT_SVG |
| 171 | +hb_cairo_font_face_create_for_face |
| 172 | +hb_cairo_font_face_create_for_font |
| 173 | +hb_cairo_font_face_get_face |
| 174 | +hb_cairo_font_face_get_font |
| 175 | +hb_cairo_font_face_get_scale_factor |
| 176 | +hb_cairo_font_face_set_font_init_func |
| 177 | +hb_cairo_font_face_set_scale_factor |
| 178 | +hb_cairo_font_init_func_t |
| 179 | +hb_cairo_glyphs_from_buffer |
| 180 | +hb_cairo_scaled_font_get_font |
| 181 | +hb_color_line_get_color_stops |
| 182 | +hb_color_line_get_color_stops_func_t |
| 183 | +hb_color_line_get_extend |
| 184 | +hb_color_line_get_extend_func_t |
| 185 | +hb_color_line_t |
| 186 | +hb_color_stop_t |
| 187 | +hb_draw_funcs_get_empty |
| 188 | +hb_draw_funcs_get_user_data |
| 189 | +hb_draw_funcs_set_user_data |
| 190 | +hb_face_collect_nominal_glyph_mapping |
| 191 | +hb_font_draw_glyph |
| 192 | +hb_font_draw_glyph_func_t |
| 193 | +hb_font_funcs_set_draw_glyph_func |
| 194 | +hb_font_funcs_set_paint_glyph_func |
| 195 | +hb_font_get_synthetic_bold |
| 196 | +hb_font_get_var_named_instance |
| 197 | +hb_font_paint_glyph |
| 198 | +hb_font_paint_glyph_func_t |
| 199 | +hb_font_set_synthetic_bold |
| 200 | +hb_map_keys |
| 201 | +hb_map_next |
| 202 | +hb_map_update |
| 203 | +hb_map_values |
| 204 | +hb_ot_color_glyph_has_paint |
| 205 | +hb_ot_color_has_paint |
| 206 | +hb_ot_layout_script_select_language2 |
| 207 | +hb_ot_name_id_predefined_t |
| 208 | +hb_paint_color |
| 209 | +hb_paint_color_func_t |
| 210 | +hb_paint_composite_mode_t |
| 211 | +hb_paint_custom_palette_color |
| 212 | +hb_paint_custom_palette_color_func_t |
| 213 | +hb_paint_extend_t |
| 214 | +hb_paint_funcs_create |
| 215 | +hb_paint_funcs_destroy |
| 216 | +hb_paint_funcs_get_empty |
| 217 | +hb_paint_funcs_get_user_data |
| 218 | +hb_paint_funcs_is_immutable |
| 219 | +hb_paint_funcs_make_immutable |
| 220 | +hb_paint_funcs_reference |
| 221 | +hb_paint_funcs_set_color_func |
| 222 | +hb_paint_funcs_set_custom_palette_color_func |
| 223 | +hb_paint_funcs_set_image_func |
| 224 | +hb_paint_funcs_set_linear_gradient_func |
| 225 | +hb_paint_funcs_set_pop_clip_func |
| 226 | +hb_paint_funcs_set_pop_group_func |
| 227 | +hb_paint_funcs_set_pop_transform_func |
| 228 | +hb_paint_funcs_set_push_clip_glyph_func |
| 229 | +hb_paint_funcs_set_push_clip_rectangle_func |
| 230 | +hb_paint_funcs_set_push_group_func |
| 231 | +hb_paint_funcs_set_push_transform_func |
| 232 | +hb_paint_funcs_set_radial_gradient_func |
| 233 | +hb_paint_funcs_set_sweep_gradient_func |
| 234 | +hb_paint_funcs_set_user_data |
| 235 | +hb_paint_funcs_t |
| 236 | +hb_paint_image |
| 237 | +hb_paint_image_func_t |
| 238 | +hb_paint_linear_gradient |
| 239 | +hb_paint_linear_gradient_func_t |
| 240 | +hb_paint_pop_clip |
| 241 | +hb_paint_pop_clip_func_t |
| 242 | +hb_paint_pop_group |
| 243 | +hb_paint_pop_group_func_t |
| 244 | +hb_paint_pop_transform |
| 245 | +hb_paint_pop_transform_func_t |
| 246 | +hb_paint_push_clip_glyph |
| 247 | +hb_paint_push_clip_glyph_func_t |
| 248 | +hb_paint_push_clip_rectangle |
| 249 | +hb_paint_push_clip_rectangle_func_t |
| 250 | +hb_paint_push_group |
| 251 | +hb_paint_push_group_func_t |
| 252 | +hb_paint_push_transform |
| 253 | +hb_paint_push_transform_func_t |
| 254 | +hb_paint_radial_gradient |
| 255 | +hb_paint_radial_gradient_func_t |
| 256 | +hb_paint_sweep_gradient |
| 257 | +hb_paint_sweep_gradient_func_t |
| 258 | +hb_set_is_inverted |
| 259 | +hb_subset_input_keep_everything |
| 260 | |
| 261 | - Deprecated API: |
| 262 | +hb_font_funcs_set_glyph_shape_func |
| 263 | +hb_font_get_glyph_shape_func_t |
| 264 | +hb_font_get_glyph_shape |
| 265 | |
| 266 | |
Khaled Hosny | afcae83 | 2022-12-16 23:14:57 +0200 | [diff] [blame] | 267 | Overview of changes leading to 6.0.0 |
| 268 | Friday, December 16, 2022 |
| 269 | ==================================== |
| 270 | - A new API have been added to pre-process the face and speed up future |
| 271 | subsetting operations on that face. Provides up to a 95% reduction in |
| 272 | subsetting times when the same face is subset more than once. |
| 273 | |
| 274 | For more details and benchmarks, see: |
| 275 | https://github.com/harfbuzz/harfbuzz/blob/main/docs/subset-preprocessing.md |
| 276 | |
| 277 | (Garret Rieger, Behdad Esfahbod) |
| 278 | |
| 279 | - Shaping have been speedup by skipping entire lookups when the buffer contents |
| 280 | don't intersect with the lookup. Shows up to a 10% speedup in shaping some |
| 281 | fonts. (Behdad Esfahbod) |
| 282 | |
| 283 | - A new experimental feature, “Variable Composites” (enabled by passing |
| 284 | -Dexperimental_api=true to meson), is also featured in this release. |
| 285 | This technology enables drastic compression of fonts in the Chinese, |
| 286 | Japanese, Korean, and other writing systems, by reusing the OpenType Font |
| 287 | Variations technology for encoding “smart components” into the font. |
| 288 | |
| 289 | The specification for these extensions to the font format can be found in: |
| 290 | https://github.com/harfbuzz/boring-expansion-spec/blob/glyf1/glyf1.md |
| 291 | |
| 292 | A test variable-font with ~7160 Hangul syllables derived from the |
| 293 | NotoSerifKR-VF font has been built, with existing OpenType technology, as |
| 294 | well as with the new Variable Composites (VarComposites) technology. The |
| 295 | VarComposites font is over 90% smaller than the OpenType version of the font! |
| 296 | Both fonts can be obtained from the “smarties” repository: |
| 297 | https://github.com/behdad/smarties/tree/3.0/fonts/hangul/serif |
| 298 | |
| 299 | When building HarfBuzz with experimental features enabled, you can test |
| 300 | the “smarties” font with a sample character like this: |
| 301 | |
| 302 | $ hb-view butchered-hangul-serif-smarties-variable.ttf -u AE01 --variations=wght=700 |
| 303 | |
| 304 | (Behdad Esfahbod) |
| 305 | |
| 306 | - The HarfBuzz subsetter can now drop axes by pinning them to specific values |
| 307 | (also referred to as instancing). There are a couple of restrictions |
| 308 | currently: |
| 309 | |
| 310 | - Only works with TrueType (“glyf”) based fonts. “CFF2” fonts are not yet |
| 311 | supported. |
| 312 | - Only supports the case where all axes in a font are pinned. |
| 313 | |
| 314 | (Garret Rieger, Qunxin Liu) |
| 315 | |
| 316 | - Miscellaneous fixes and improvements. |
| 317 | |
| 318 | (Behdad Esfahbod, Christoph Reiter, David Corbett, Eli Schwartz, Garret |
| 319 | Rieger, Joel Auterson, Jordan Petridis, Khaled Hosny, Lorenz Wildberg, |
| 320 | Marco Rebhan, Martin Storsjö, Matthias Clasen, Qunxin Liu, Satadru Pramanik) |
| 321 | |
| 322 | |
| 323 | - New API |
| 324 | +hb_subset_input_pin_axis_location() |
| 325 | +hb_subset_input_pin_axis_to_default() |
| 326 | +hb_subset_preprocess() |
| 327 | |
| 328 | |
Khaled Hosny | 970321d | 2022-10-19 22:06:46 +0200 | [diff] [blame] | 329 | Overview of changes leading to 5.3.1 |
| 330 | Wednesday, October 19, 2022 |
| 331 | ==================================== |
| 332 | - Subsetter repacker fixes. (Garret Rieger) |
| 333 | - Adjust Grapheme clusters for Katakana voiced sound marks. (Behdad Esfahbod) |
| 334 | - New “hb-subset” option “--preprocess-face”. (Garret Rieger) |
| 335 | |
| 336 | |
Khaled Hosny | 3ce4b8f | 2022-10-08 19:10:07 +0200 | [diff] [blame] | 337 | Overview of changes leading to 5.3.0 |
| 338 | Saturday, October 8, 2022 |
| 339 | "Women, Life, Freedom" #MahsaAmini |
| 340 | ==================================== |
| 341 | - Don’t add glyphs from dropped MATH or COLR tables to the subset glyphs. |
| 342 | (Khaled Hosny) |
| 343 | - Map “rlig” to appropriate AAT feature selectors. (Jonathan Kew) |
| 344 | - Update USE data files to latest version. (David Corbett) |
| 345 | - Check “CBDT” extents first before outline tables, to help with fonts that |
| 346 | also include an empty “glyf” table. (Khaled Hosny) |
| 347 | - More work towards variable font instancing in the subsetter. (Qunxin Liu) |
| 348 | - Subsetter repacker improvements. (Garret Rieger) |
| 349 | - New API: |
| 350 | +hb_ot_layout_lookup_get_optical_bound() |
| 351 | +hb_face_builder_sort_tables() |
| 352 | |
| 353 | |
Khaled Hosny | 4a1d891 | 2022-09-17 03:15:51 +0200 | [diff] [blame] | 354 | Overview of changes leading to 5.2.0 |
| 355 | Saturday, September 17, 2022 |
| 356 | ==================================== |
| 357 | - Fix regressions in hb-ft font functions for FT_Face’s with transformation |
| 358 | matrix. (Behdad Esfahbod) |
| 359 | - The experimental hb-repacker API now supports splitting several GPOS subtable |
| 360 | types when needed. (Garret Rieger) |
| 361 | - The HarfBuzz extensions to OpenType font format are now opt-in behind |
| 362 | build-time flags. (Behdad Esfahbod) |
| 363 | - The experimental hb-subset variable fonts instantiation API can now |
| 364 | instantiate more font tables and arbitrary axis locations. (Qunxin Liu) |
| 365 | - Unicode 15 support. (David Corbett) |
| 366 | - Various documentation improvements. (Behdad Esfahbod, Matthias Clasen) |
| 367 | - The hb-view command line tool now detects WezTerm inline images support. |
| 368 | (Wez Furlong) |
| 369 | - Fix FreeType and ICU dependency lookup with meson. (Xavier Claessens) |
| 370 | |
| 371 | - New API: |
| 372 | +HB_SCRIPT_KAWI |
| 373 | +HB_SCRIPT_NAG_MUNDARI |
| 374 | |
| 375 | |
Khaled Hosny | f1f2be7 | 2022-07-31 15:46:25 +0200 | [diff] [blame] | 376 | Overview of changes leading to 5.1.0 |
| 377 | Sunday, July 31, 2022 |
| 378 | ==================================== |
| 379 | - More extensive buffer tracing messages. (Behdad Esfahbod) |
| 380 | - Fix hb-ft regression in bitmap fonts rendering. (Behdad Esfahbod) |
| 381 | - Support extension promotion of lookups in hb-subset-repacker. (Garret Rieger) |
| 382 | - A new HB_GLYPH_FLAG_SAFE_TO_INSERT_TATWEEL for scripts that use elongation |
| 383 | (e.g. Arabic) to signify where it is safe to insert tatweel glyph without |
| 384 | interrupting shaping. (Behdad Esfahbod) |
| 385 | - Add “--safe-to-insert-tatweel” to “hb-shape” tool. (Behdad Esfahbod) |
| 386 | |
| 387 | - New API |
| 388 | +HB_GLYPH_FLAG_SAFE_TO_INSERT_TATWEEL |
| 389 | +HB_BUFFER_FLAG_PRODUCE_SAFE_TO_INSERT_TATWEEL |
| 390 | |
| 391 | |
Khaled Hosny | cbccadb | 2022-07-23 22:09:06 +0200 | [diff] [blame] | 392 | Overview of changes leading to 5.0.1 |
| 393 | Saturday, July 23, 2022 |
| 394 | ==================================== |
| 395 | - Fix version 2 “avar” table with hb-ft. (Behdad Esfahbod) |
| 396 | |
| 397 | |
Khaled Hosny | 40b21ed | 2022-07-23 16:45:32 +0200 | [diff] [blame] | 398 | Overview of changes leading to 5.0.0 |
| 399 | Saturday, July 23, 2022 |
| 400 | ==================================== |
| 401 | - Support fonts with more than 65535 glyphs in “GDEF”, “GSUB”, and “GPOS” |
| 402 | tables. This is part of https://github.com/be-fonts/boring-expansion-spec to |
| 403 | extend OpenType in a backward-compatible way. |
| 404 | (Behdad Esfahbod, Garret Rieger) |
| 405 | - Complete support for more than 65535 glyphs in “glyf” table that started in |
| 406 | 4.0.0 release. Part of boring-expansion-spec. (Behdad Esfahbod) |
| 407 | - Support version 2 of “avar” table. Part of boring-expansion-spec. |
| 408 | (Behdad Esfahbod) |
| 409 | - Fix mark attachment on multiple substitutions in some cases. |
| 410 | (Behdad Esfahbod) |
| 411 | - Fix application of “calt”, “rclt”, and “ccmp” features to better match |
| 412 | Uniscribe behaviour with some Arabic fonts. (Behdad Esfahbod) |
| 413 | - Improvement to interaction between multiple cursive attachments. |
| 414 | (Behdad Esfahbod) |
| 415 | - Improve multiple mark interactions in Hebrew. (Behdad Esfahbod) |
| 416 | - Implement language-specific forms in AAT shaping. (Behdad Esfahbod) |
| 417 | - Fix variation of “VORG” table. (Behdad Esfahbod) |
| 418 | - Support for specific script tags to be retained in the subsetter, and add |
| 419 | “--layout-scripts” option to “hb-subset” tool. (Garret Rieger) |
| 420 | - Accept space as delimiter for --features/--variations in command line tools. |
| 421 | - Improve subsetting of “COLR” table. (Qunxin Liu) |
| 422 | - Improved fuzzing coverage for ot-math API. (Frédéric Wang) |
| 423 | - Fix “kern” table version 2 (AAT) sanitization on 32-bit systems. |
| 424 | (Behdad Esfahbod) |
| 425 | - Allow negative glyph advances from “graphite2” shaper. (Stephan Bergmann) |
| 426 | - Implement loading (color) bitmap fonts with hb-ft. (Behdad Esfahbod) |
| 427 | - Fix regression in hb-ft when changing font size. (Behdad Esfahbod) |
| 428 | - Fix build on GCC < 7. (Kleis Auke Wolthuizen) |
| 429 | - Dynamically load dwrite.dll on windows if “directwrite” shaper is enabled. |
| 430 | (Luca Bacci) |
| 431 | - Provide a single-file harfbuzz-subset.cc file for easier alternate building |
| 432 | of hb-subset library, similar to harfbuzz.cc. (Khaled Hosny) |
| 433 | |
| 434 | - New API |
| 435 | +HB_SUBSET_SETS_LAYOUT_SCRIPT_TAG |
| 436 | +hb_language_matches() |
| 437 | |
| 438 | |
Khaled Hosny | 096aaa6 | 2022-06-29 07:30:05 +0200 | [diff] [blame] | 439 | Overview of changes leading to 4.4.1 |
| 440 | Wednesday, June 29, 2022 |
| 441 | ==================================== |
| 442 | - Fix test failure with some compilers. |
| 443 | - Fix Telugu and Kannada kerning regression. |
| 444 | |
| 445 | |
Khaled Hosny | 8537d68 | 2022-06-27 20:51:16 +0200 | [diff] [blame] | 446 | Overview of changes leading to 4.4.0 |
| 447 | Monday, June 27, 2022 |
| 448 | ==================================== |
| 449 | - Caching of variable fonts shaping, in particular when using HarfBuzz’s own |
| 450 | font loading functions (ot). Bringing performance of variable shaping in par |
| 451 | with non-variable fonts shaping. (Behdad Esfahbod) |
| 452 | - Caching of format 2 “Contextual Substitution” and “Chained Contexts |
| 453 | Substitution” lookups. Resulting in up to 20% speedup of lookup-heavy fonts |
| 454 | like Gulzar or Noto Nastaliq Urdu. (Behdad Esfahbod) |
| 455 | - Improved ANSI output from hb-view. (Behdad Esfahbod) |
| 456 | - Support for shaping legacy, pre-OpenType Windows 3.1-era, Arabic fonts that |
| 457 | relied on a fixed PUA encoding. (Khaled Hosny, Behdad Esfahbod) |
| 458 | - Sinhala script is now shaped by the USE shaper instead of “indic” one. |
| 459 | (Behdad Esfahbod, David Corbett) |
| 460 | - Thai shaper improvements. (David Corbett) |
| 461 | - hb-ot-name API supports approximate BCP-47 language matching, for example |
| 462 | asking for “en_US” in a font that has only “en” names will return them. |
| 463 | (Behdad Esfahbod) |
| 464 | - Optimized TrueType glyph shape loading. (Behdad Esfahbod) |
| 465 | - Fix subsetting of HarfBuzz faces created via hb_face_create_for_tables(). |
| 466 | (Garret Rieger) |
| 467 | - Add 32 bit var store support to the subsetter. (Garret Rieger) |
| 468 | |
| 469 | - New API |
| 470 | +HB_BUFFER_FLAG_DEFINED |
| 471 | +HB_BUFFER_SERIALIZE_FLAG_DEFINED |
| 472 | +hb_font_changed() |
| 473 | +hb_font_get_serial() |
| 474 | +hb_ft_hb_font_changed() |
| 475 | +hb_set_hash() |
| 476 | +hb_map_copy() |
| 477 | +hb_map_hash() |
| 478 | |
| 479 | |
Khaled Hosny | aee123f | 2022-05-20 21:07:25 +0200 | [diff] [blame] | 480 | Overview of changes leading to 4.3.0 |
| 481 | Friday, May 20, 2022 |
| 482 | ==================================== |
| 483 | - Major speed up in loading and subsetting fonts, especially in |
| 484 | handling CFF table. Subsetting some fonts is now 3 times faster. |
| 485 | (Behdad Esfahbod, Garret Rieger) |
| 486 | - Speed up blending CFF2 table. (Behdad Esfahbod) |
| 487 | - Speed up hb_ot_tags_from_language(). (Behdad Esfahbod, David Corbett) |
| 488 | - Fix USE classification of U+10A38 to fix multiple marks on single Kharoshthi |
| 489 | base. (David Corbett) |
| 490 | - Fix parsing of empty CFF Index. (Behdad Esfahbod) |
| 491 | - Fix subsetting CPAL table with partial palette overlaps. (Garret Rieger) |
| 492 | |
| 493 | - New API |
| 494 | +hb_map_is_equal() (Behdad Esfahbod) |
| 495 | |
| 496 | |
Khaled Hosny | f7aee78 | 2022-04-24 05:47:57 +0200 | [diff] [blame] | 497 | Overview of changes leading to 4.2.1 |
| 498 | Sunday, April 24, 2022 |
| 499 | ==================================== |
| 500 | - Make sure hb_blob_create_from_file_or_fail() always returns nullptr in case |
| 501 | of failure and not empty blob sometimes. (Khaled Hosny) |
| 502 | - Add --passthrough-tables option to hb-subset. (Cosimo Lupo) |
| 503 | - Reinstate a pause after basic features in Khmer shaper, fixing a regression |
| 504 | introduced in previous release. (Behdad Esfahbod) |
| 505 | - Better handling of Regional_Indicator when shaped with RTL-native scripts, |
| 506 | reverting earlier fix that caused regressions in AAT shaping. (Behdad Esfahbod) |
| 507 | |
| 508 | |
Khaled Hosny | 9d5730b | 2022-03-30 15:08:34 +0200 | [diff] [blame] | 509 | Overview of changes leading to 4.2.0 |
| 510 | Wednesday, March 30, 2022 |
| 511 | ==================================== |
| 512 | - Source code reorganization, splitting large hb-ot-layout files into smaller, |
| 513 | per-subtable ones under OT/Layout/*. Code for more tables will follow suit in |
| 514 | later releases. (Garret Rieger, Behdad Esfahbod) |
| 515 | - Revert Indic shaper change in previous release that broke some fonts and |
| 516 | instead make per-syllable restriction of “GSUB” application limited to |
| 517 | script-specific Indic features, while applying them and discretionary |
| 518 | features in one go. (Behdad Esfahbod) |
| 519 | - Fix decoding of private in gvar table. (Behdad Esfahbod) |
| 520 | - Fix handling of contextual lookups that delete too many glyphs. (Behdad Esfahbod) |
| 521 | - Make “morx” deleted glyphs don’t block “GPOS” application. (Behdad Esfahbod) |
| 522 | - Various build fixes. (Chun-wei Fan, Khaled Hosny) |
| 523 | |
| 524 | - New API |
| 525 | +hb_set_next_many() (Andrew John) |
| 526 | |
| 527 | |
Khaled Hosny | c36844d | 2022-03-23 07:20:59 +0200 | [diff] [blame] | 528 | Overview of changes leading to 4.1.0 |
| 529 | Wednesday, March 23, 2022 |
| 530 | ==================================== |
| 531 | - Various OSS-Fuzz fixes. (Behdad Esfahbod) |
| 532 | - Make fallback vertical-origin match FreeType’s. (Behdad Esfahbod) |
| 533 | - Treat visible viramas like dependent vowels in USE shaper. (David Corbett) |
| 534 | - Apply presentation forms features and discretionary features in one go in |
| 535 | Indic shaper, which seems to match Uniscribe and CoreText behaviour. |
| 536 | (Behdad Esfahbod, David Corbett) |
| 537 | - Various bug fixes. |
| 538 | |
| 539 | - New API |
Khaled Hosny | 9d5730b | 2022-03-30 15:08:34 +0200 | [diff] [blame] | 540 | +hb_set_add_sorted_array() (Andrew John) |
| 541 | |
Khaled Hosny | c36844d | 2022-03-23 07:20:59 +0200 | [diff] [blame] | 542 | |
Khaled Hosny | 1f79ba9 | 2022-03-11 20:19:04 +0200 | [diff] [blame] | 543 | Overview of changes leading to 4.0.1 |
| 544 | Friday, March 11, 2022 |
| 545 | ==================================== |
| 546 | - Update OpenType to AAT mappings for “hist” and “vrtr” features. |
| 547 | (Florian Pircher) |
| 548 | - Update IANA Language Subtag Registry to 2022-03-02. (David Corbett) |
| 549 | - Update USE shaper to allow any non-numeric tail in a symbol cluster, and |
| 550 | remove obsolete data overrides. (David Corbett) |
| 551 | - Fix handling of baseline variations to return correctly scaled values. |
| 552 | (Matthias Clasen) |
| 553 | - A new experimental hb_subset_repack_or_fail() to repack an array of objects, |
| 554 | eliminating offset overflows. The API is not available unless HarfBuzz is |
| 555 | built with experimental APIs enabled. (Qunxin Liu) |
| 556 | |
| 557 | - New experimental API |
| 558 | +hb_link_t |
| 559 | +hb_object_t |
| 560 | +hb_subset_repack_or_fail() |
| 561 | |
| 562 | |
Khaled Hosny | 8d1b000 | 2022-03-01 21:27:32 +0200 | [diff] [blame] | 563 | Overview of changes leading to 4.0.0 |
| 564 | Tuesday, March 1, 2022 |
| 565 | ==================================== |
| 566 | - New public API to create subset plan and gather information on things like |
| 567 | glyph mappings in the final subset. The plan can then be passed on to perform |
| 568 | the subsetting operation. (Garret Rieger) |
| 569 | - Draw API for extracting glyph shapes have been extended and finalized and is |
| 570 | no longer an experimental API. The draw API supports glyf, CFF and CFF2 |
| 571 | glyph outlines tables, and applies variation settings set on the font as well |
| 572 | as synthetic slant. The new public API is not backward compatible with the |
| 573 | previous, non-public, experimental API. (Behdad Esfahbod) |
| 574 | - The hb-view tool will use HarfBuzz draw API to render the glyphs instead of |
| 575 | cairo-ft when compiled with Cairo 1.17.5 or newer, setting HB_DRAW |
| 576 | environment variable to 1 or 0 will force using or not use the draw API, |
| 577 | respectively. (Behdad Esfahbod) |
| 578 | - The hb-shape and hb-view tools now default to using HarfBuzz’s own font |
| 579 | loading functions (ot) instead of FreeType ones (ft). They also have a new |
| 580 | option, --font-slant, to apply synthetic slant to the font. (Behdad Esfahbod) |
| 581 | - HarfBuzz now supports more than 65535 (the OpenType limit) glyph shapes and |
| 582 | metrics. See https://github.com/be-fonts/boring-expansion-spec/issues/6 and |
| 583 | https://github.com/be-fonts/boring-expansion-spec/issues/7 for details. |
| 584 | (Behdad Esfahbod) |
| 585 | - New API to get the dominant horizontal baseline tag for a given script. |
| 586 | (Behdad Esfahbod) |
| 587 | - New API to get the baseline positions from the font, and synthesize missing |
| 588 | ones. As well as new API to get font metrics and synthesize missing ones. |
| 589 | (Matthias Clasen) |
| 590 | - Improvements to finding dependencies on Windows when building with Visual |
| 591 | Studio. (Chun-wei Fan) |
| 592 | - New buffer flag, HB_BUFFER_FLAG_PRODUCE_UNSAFE_TO_CONCAT, that must be set |
| 593 | during shaping for HB_GLYPH_FLAG_UNSAFE_TO_CONCAT flag to be reliably |
| 594 | produced. This is to limit the performance hit of producing this flag to when |
| 595 | it is actually needed. (Behdad Esfahbod) |
| 596 | - Documentation improvements. (Matthias Clasen) |
| 597 | |
| 598 | - New API |
| 599 | - General: |
| 600 | +HB_BUFFER_FLAG_PRODUCE_UNSAFE_TO_CONCAT |
| 601 | +hb_var_num_t |
| 602 | |
| 603 | - Draw: |
| 604 | +hb_draw_funcs_t |
Khaled Hosny | 7563952 | 2022-03-02 12:56:33 +0200 | [diff] [blame] | 605 | +hb_draw_funcs_create() |
| 606 | +hb_draw_funcs_reference() |
| 607 | +hb_draw_funcs_destroy() |
| 608 | +hb_draw_funcs_is_immutable() |
| 609 | +hb_draw_funcs_make_immutable() |
Khaled Hosny | 8d1b000 | 2022-03-01 21:27:32 +0200 | [diff] [blame] | 610 | +hb_draw_move_to_func_t |
Khaled Hosny | 7563952 | 2022-03-02 12:56:33 +0200 | [diff] [blame] | 611 | +hb_draw_funcs_set_move_to_func() |
Khaled Hosny | 8d1b000 | 2022-03-01 21:27:32 +0200 | [diff] [blame] | 612 | +hb_draw_line_to_func_t |
Khaled Hosny | 7563952 | 2022-03-02 12:56:33 +0200 | [diff] [blame] | 613 | +hb_draw_funcs_set_line_to_func() |
Khaled Hosny | 8d1b000 | 2022-03-01 21:27:32 +0200 | [diff] [blame] | 614 | +hb_draw_quadratic_to_func_t |
Khaled Hosny | 7563952 | 2022-03-02 12:56:33 +0200 | [diff] [blame] | 615 | +hb_draw_funcs_set_quadratic_to_func() |
Khaled Hosny | 8d1b000 | 2022-03-01 21:27:32 +0200 | [diff] [blame] | 616 | +hb_draw_cubic_to_func_t |
Khaled Hosny | 7563952 | 2022-03-02 12:56:33 +0200 | [diff] [blame] | 617 | +hb_draw_funcs_set_cubic_to_func() |
Khaled Hosny | 8d1b000 | 2022-03-01 21:27:32 +0200 | [diff] [blame] | 618 | +hb_draw_close_path_func_t |
Khaled Hosny | 7563952 | 2022-03-02 12:56:33 +0200 | [diff] [blame] | 619 | +hb_draw_funcs_set_close_path_func() |
Khaled Hosny | 8d1b000 | 2022-03-01 21:27:32 +0200 | [diff] [blame] | 620 | +hb_draw_state_t |
| 621 | +HB_DRAW_STATE_DEFAULT |
Khaled Hosny | 7563952 | 2022-03-02 12:56:33 +0200 | [diff] [blame] | 622 | +hb_draw_move_to() |
| 623 | +hb_draw_line_to() |
| 624 | +hb_draw_quadratic_to() |
| 625 | +hb_draw_cubic_to() |
| 626 | +hb_draw_close_path() |
Khaled Hosny | 8d1b000 | 2022-03-01 21:27:32 +0200 | [diff] [blame] | 627 | +hb_font_get_glyph_shape_func_t |
| 628 | +hb_font_funcs_set_glyph_shape_func() |
| 629 | +hb_font_get_glyph_shape() |
| 630 | |
| 631 | - OpenType layout |
| 632 | +HB_OT_LAYOUT_BASELINE_TAG_IDEO_FACE_CENTRAL |
| 633 | +HB_OT_LAYOUT_BASELINE_TAG_IDEO_EMBOX_CENTRAL |
| 634 | +hb_ot_layout_get_horizontal_baseline_tag_for_script() |
Khaled Hosny | 7563952 | 2022-03-02 12:56:33 +0200 | [diff] [blame] | 635 | +hb_ot_layout_get_baseline_with_fallback() |
Khaled Hosny | 8d1b000 | 2022-03-01 21:27:32 +0200 | [diff] [blame] | 636 | |
| 637 | - Metrics: |
Khaled Hosny | 7563952 | 2022-03-02 12:56:33 +0200 | [diff] [blame] | 638 | +hb_ot_metrics_get_position_with_fallback() |
Khaled Hosny | 8d1b000 | 2022-03-01 21:27:32 +0200 | [diff] [blame] | 639 | |
| 640 | - Subset: |
| 641 | +hb_subset_plan_t |
Khaled Hosny | 7563952 | 2022-03-02 12:56:33 +0200 | [diff] [blame] | 642 | +hb_subset_plan_create_or_fail() |
| 643 | +hb_subset_plan_reference() |
| 644 | +hb_subset_plan_destroy() |
| 645 | +hb_subset_plan_set_user_data() |
| 646 | +hb_subset_plan_get_user_data() |
| 647 | +hb_subset_plan_execute_or_fail() |
| 648 | +hb_subset_plan_unicode_to_old_glyph_mapping() |
| 649 | +hb_subset_plan_new_to_old_glyph_mapping() |
| 650 | +hb_subset_plan_old_to_new_glyph_mapping() |
Khaled Hosny | 8d1b000 | 2022-03-01 21:27:32 +0200 | [diff] [blame] | 651 | |
| 652 | |
Khaled Hosny | 0a12996 | 2022-02-13 00:30:50 +0200 | [diff] [blame] | 653 | Overview of changes leading to 3.4.0 |
| 654 | Sunday, February 13, 2022 |
| 655 | ==================================== |
| 656 | - Perform sanity checks on shaping results is now part of “harfbuzz” library |
| 657 | and can be enabled by setting the buffer flag HB_BUFFER_FLAG_VERIFY. |
| 658 | (Behdad Esfahbod) |
| 659 | - Arabic Mark Transient Reordering Algorithm have been updated to revision 6. |
| 660 | (Khaled Hosny) |
| 661 | - ISO 15924 code for mathematical notation, ‘Zmth’, now maps to the OpenType |
| 662 | ‘math’ tag. (Alexis King) |
| 663 | - It is now possible to get at once all math kerning values for a given glyph |
| 664 | at a given corner. (Alexis King) |
Khaled Hosny | db04af2 | 2022-02-13 00:33:12 +0200 | [diff] [blame] | 665 | - Fix locale_t portability issues on systems the typedef’s it to a void |
| 666 | pointer. (Behdad Esfahbod) |
Khaled Hosny | 0a12996 | 2022-02-13 00:30:50 +0200 | [diff] [blame] | 667 | |
| 668 | - New API: |
| 669 | +HB_BUFFER_FLAG_VERIFY |
| 670 | +HB_OT_TAG_MATH_SCRIPT |
| 671 | +HB_SCRIPT_MATH |
| 672 | +hb_ot_math_kern_entry_t |
Khaled Hosny | 8d1b000 | 2022-03-01 21:27:32 +0200 | [diff] [blame] | 673 | +hb_ot_math_get_glyph_kernings() |
Khaled Hosny | 0a12996 | 2022-02-13 00:30:50 +0200 | [diff] [blame] | 674 | |
| 675 | - Deprecated API |
| 676 | +HB_OT_MATH_SCRIPT |
| 677 | |
| 678 | |
Khaled Hosny | ac46c32 | 2022-02-06 15:41:18 +0200 | [diff] [blame] | 679 | Overview of changes leading to 3.3.2 |
| 680 | Sunday, February 6, 2022 |
| 681 | ==================================== |
| 682 | - Revert splitting of pair positioning values introduced in 3.3.0 as it proved |
| 683 | problematic. (Behdad Esfahbod) |
| 684 | |
| 685 | |
Khaled Hosny | 45df259 | 2022-01-31 23:06:10 +0200 | [diff] [blame] | 686 | Overview of changes leading to 3.3.1 |
| 687 | Monday, January 31, 2022 |
| 688 | ==================================== |
| 689 | - Fix heap-use-after-free in harfbuzz-subset introduced in previous release. |
| 690 | (Garret Rieger) |
| 691 | |
| 692 | |
Khaled Hosny | 98da330 | 2022-01-31 18:12:01 +0200 | [diff] [blame] | 693 | Overview of changes leading to 3.3.0 |
| 694 | Monday, January 31, 2022 |
| 695 | ==================================== |
Khaled Hosny | 45df259 | 2022-01-31 23:06:10 +0200 | [diff] [blame] | 696 | - Improved documentation. (Matthias Clasen) |
| 697 | - Internal code cleanup, using C++ standard library more. (Behdad Esfahbod) |
Khaled Hosny | 98da330 | 2022-01-31 18:12:01 +0200 | [diff] [blame] | 698 | - The low 16-bits of face index will be used by hb_face_create() to select a |
| 699 | face inside a font collection file format, while the high 16-bits will be |
Khaled Hosny | 45df259 | 2022-01-31 23:06:10 +0200 | [diff] [blame] | 700 | used by hb_font_create() to load the named instance. (Behdad Esfahbod) |
Khaled Hosny | 98da330 | 2022-01-31 18:12:01 +0200 | [diff] [blame] | 701 | - Glyph positions and other font metrics now apply synthetic slant set by |
| 702 | hb_font_set_synthetic_slant(), for improved positioning for synthetically |
Khaled Hosny | 45df259 | 2022-01-31 23:06:10 +0200 | [diff] [blame] | 703 | slanted fonts. (Behdad Esfahbod) |
Khaled Hosny | 98da330 | 2022-01-31 18:12:01 +0200 | [diff] [blame] | 704 | - Fixed unintentional locale dependency in hb_variation_to_string() for decimal |
Khaled Hosny | 45df259 | 2022-01-31 23:06:10 +0200 | [diff] [blame] | 705 | point representation. (Matthias Clasen) |
Khaled Hosny | 98da330 | 2022-01-31 18:12:01 +0200 | [diff] [blame] | 706 | - When applying pair positioning (kerning) the positioning value is split |
| 707 | between the two sides of the pair for improved cursor positioning between |
Khaled Hosny | 45df259 | 2022-01-31 23:06:10 +0200 | [diff] [blame] | 708 | such pairs. (Behdad Esfahbod) |
Khaled Hosny | 98da330 | 2022-01-31 18:12:01 +0200 | [diff] [blame] | 709 | - Introduced new HB_GLYPH_FLAG_UNSAFE_TO_CONCAT, to be used in conjunction |
| 710 | with HB_GLYPH_FLAG_UNSAFE_TO_BREAK for optimizing re-shaping during line |
Khaled Hosny | 45df259 | 2022-01-31 23:06:10 +0200 | [diff] [blame] | 711 | breaking. Check the documentation for further details. (Behdad Esfahbod) |
Khaled Hosny | 98da330 | 2022-01-31 18:12:01 +0200 | [diff] [blame] | 712 | - Improved handling of macrolanguages when mapping BCP 47 codes to OpenType |
Khaled Hosny | 45df259 | 2022-01-31 23:06:10 +0200 | [diff] [blame] | 713 | tags. (David Corbett) |
Khaled Hosny | 98da330 | 2022-01-31 18:12:01 +0200 | [diff] [blame] | 714 | |
| 715 | - New API: |
| 716 | +HB_GLYPH_FLAG_UNSAFE_TO_CONCAT |
| 717 | +hb_segment_properties_overlay() |
| 718 | +hb_buffer_create_similar() |
| 719 | +hb_font_set_synthetic_slant() |
| 720 | +hb_font_get_synthetic_slant() |
| 721 | +hb_font_get_var_coords_design() |
| 722 | |
| 723 | |
Khaled Hosny | be91d29 | 2021-12-12 04:45:54 +0200 | [diff] [blame] | 724 | Overview of changes leading to 3.2.0 |
| 725 | Friday, November 26, 2021 |
| 726 | ==================================== |
Khaled Hosny | be91d29 | 2021-12-12 04:45:54 +0200 | [diff] [blame] | 727 | “harfbuzz” library improvements: |
| 728 | - Fixed shaping of Apple Color Emoji flags in right-to-left context. (Behdad Esfahbod) |
| 729 | - Fixed positioning of CFF fonts in HB_TINY profile. (Behdad Esfahbod) |
| 730 | - OpenType 1.9 language tags update. (David Corbett) |
| 731 | - Add HB_NO_VERTICAL config option. |
| 732 | - Add HB_CONFIG_OVERRIDE_H for easier configuration. (Behdad Esfahbod) |
| 733 | |
| 734 | “harfbuzz-subset” library improvements: |
| 735 | - Improved packing of cmap, loca, and Ligature tables. (Garret Rieger) |
| 736 | - Significantly improved overflow-resolution strategy in the repacker. (Garret Rieger) |
| 737 | |
| 738 | |
Khaled Hosny | 8aed5c2 | 2021-11-26 17:54:18 +0200 | [diff] [blame] | 739 | Overview of changes leading to 3.1.2 |
| 740 | Friday, November 26, 2021 |
| 741 | ==================================== |
| 742 | - hb-shape / hb-view: revert treating text on the commandline as single |
| 743 | paragraph (was introduced in 3.0.0); add new --single-par to do that. |
| 744 | (Behdad Esfahbod) |
| 745 | - Subsetter bug fixes. (Garret Rieger, Qunxin Liu, Behdad Esfahbod) |
| 746 | |
| 747 | |
Khaled Hosny | cd5c6cd | 2021-11-08 06:59:55 +0200 | [diff] [blame] | 748 | Overview of changes leading to 3.1.1 |
| 749 | Wednesday, November 8, 2021 |
| 750 | ==================================== |
| 751 | - Work around GCC cast-align error/warning on some platforms. (Behdad Esfahbod) |
| 752 | - Documentation improvements. (Matthias Clasen) |
| 753 | |
| 754 | |
Khaled Hosny | 77eeec5 | 2021-11-03 23:31:03 +0200 | [diff] [blame] | 755 | Overview of changes leading to 3.1.0 |
| 756 | Wednesday, November 3, 2021 |
| 757 | ==================================== |
| 758 | - Better offset-overflow handling in the subsetter library. (Garret Rieger) |
| 759 | - Improved Unicode 14 properties in the USE shaper, and various other USE |
| 760 | shaper fixes. (David Corbett) |
| 761 | - MATH and COLR v1 tables subsetting support, and various other subsetter fixes. |
| 762 | (Qunxin Liu) |
| 763 | - Support for Pwo Karen / Ason Chin medial la. (Simon Cozens) |
| 764 | - Apply GPOS positioning when substituting with morx table, if kerx is missing. |
| 765 | (Behdad Esfahbod) |
| 766 | - Apply calt and clig features across syllable boundaries in Indic shaper. |
| 767 | (Behdad Esfahbod) |
| 768 | - meson option for enabling Graphite 2 has been renamed to graphite2. |
| 769 | - Build and documentation fixes. |
| 770 | |
| 771 | - New API: |
| 772 | +hb_buffer_set_not_found_glyph() |
| 773 | +hb_buffer_get_not_found_glyph() |
| 774 | |
| 775 | |
Khaled Hosny | 9c387e2 | 2021-09-17 21:32:30 +0200 | [diff] [blame] | 776 | Overview of changes leading to 3.0.0 |
| 777 | Friday, September 17, 2021 |
| 778 | ==================================== |
| 779 | - Unicode 14.0 support (David Corbett). |
| 780 | - The hb-subset API and the harfbuzz-subset library's ABI are now declared |
| 781 | stable. The harfbuzz-subset library would not have been possible without the |
| 782 | work of Garret Rieger and Qunxin Liu from Google Fonts, and the earlier work |
| 783 | of Michiharu Ariza from Adobe. |
| 784 | - The hb-style API is now stable and no longer experimental. |
| 785 | |
| 786 | - New API: |
| 787 | +hb_style_tag_t |
| 788 | +hb_style_get_value() |
| 789 | +hb_subset_input_t |
| 790 | +hb_subset_flags_t |
| 791 | +hb_subset_sets_t |
| 792 | +hb_subset_input_create_or_fail() |
| 793 | +hb_subset_input_reference() |
| 794 | +hb_subset_input_destroy() |
| 795 | +hb_subset_input_set_user_data() |
| 796 | +hb_subset_input_get_user_data() |
| 797 | +hb_subset_input_unicode_set() |
| 798 | +hb_subset_input_glyph_set() |
| 799 | +hb_subset_input_set() |
| 800 | +hb_subset_input_get_flags() |
| 801 | +hb_subset_input_set_flags() |
| 802 | +hb_subset_or_fail() |
| 803 | |
| 804 | - Removed old unstable harfbuzz-subset API: |
| 805 | -hb_subset_input_nameid_set() |
| 806 | -hb_subset_input_namelangid_set() |
| 807 | -hb_subset_input_layout_features_set() |
| 808 | -hb_subset_input_no_subset_tables_set() |
| 809 | -hb_subset_input_drop_tables_set() |
| 810 | -hb_subset_input_set_drop_hints() |
| 811 | -hb_subset_input_get_drop_hints() |
| 812 | -hb_subset_input_set_desubroutinize() |
| 813 | -hb_subset_input_get_desubroutinize() |
| 814 | -hb_subset_input_set_retain_gids() |
| 815 | -hb_subset_input_get_retain_gids() |
| 816 | -hb_subset_input_set_name_legacy() |
| 817 | -hb_subset_input_get_name_legacy() |
| 818 | -hb_subset_input_set_overlaps_flag() |
| 819 | -hb_subset_input_get_overlaps_flag() |
| 820 | -hb_subset_input_set_notdef_outline() |
| 821 | -hb_subset_input_get_notdef_outline() |
| 822 | -hb_subset_input_set_no_prune_unicode_ranges() |
| 823 | -hb_subset_input_get_no_prune_unicode_ranges() |
| 824 | -hb_subset() |
| 825 | |
| 826 | |
Khaled Hosny | 505df5a | 2021-09-07 13:46:08 +0200 | [diff] [blame] | 827 | Overview of changes leading to 2.9.1 |
| 828 | Tuesday, September 7, 2021 |
| 829 | ==================================== |
| 830 | - Final subset API is in place and if no issues are discovered, it will be the |
| 831 | stable subset API of HarfBuzz 3.0.0. Old API is kept to ease transition, but |
| 832 | will be removed in 3.0.0. |
| 833 | - Various fuzzer-found bug fixes. |
| 834 | - hb_buffer_append() now handles the pre- and post-context which previously |
| 835 | were left unchanged in the destination buffer. |
| 836 | - hb-view / hb-shape now accept following new arguments: |
Khaled Hosny | 48c9869 | 2021-09-07 13:57:44 +0200 | [diff] [blame] | 837 | o --unicodes-before/after: takes a list of hex numbers that represent Unicode |
Khaled Hosny | 505df5a | 2021-09-07 13:46:08 +0200 | [diff] [blame] | 838 | codepoints. |
| 839 | - Undeprecated API: |
| 840 | hb_set_invert() |
| 841 | |
| 842 | |
Khaled Hosny | 9aa6f8a | 2021-08-18 09:32:04 +0200 | [diff] [blame] | 843 | Overview of changes leading to 2.9.0 |
| 844 | Wednesday, August 18, 2021 |
| 845 | History Repeats Itself (Afghanistan) |
| 846 | ==================================== |
| 847 | - Subsetter API is being stabilized, with the first stable API to happen in |
| 848 | 3.0.0 release (https://github.com/harfbuzz/harfbuzz/issues/3078). |
| 849 | - Support multiple variation axes with same tag, aka HOI. |
| 850 | - The “coretext” testing shaper now passes font variations to CoreText. |
| 851 | - hb-shape/hb-view does not break line at new lines unless text is read from |
| 852 | file. |
| 853 | - hb-view and hb-subset has a --batch now, similar to hb-shape. |
| 854 | - The --batch mode now uses ; as argument separator instead of : used previously. |
| 855 | - The --batch in hb-shape does not expect 0th argument anymore. That is, the |
| 856 | lines read are interpreted as argv[1:], instead of argv[0:]. |
| 857 | - The --batch option has been undocumented. We are ready to document it; send |
| 858 | feedback if you find it useful. |
| 859 | - hb-subset got arguments revamps. Added much-requested --gids-file, --glyphs, |
| 860 | --glyphs-file, --unicodes-file, supporting ranges in --unicodes. |
| 861 | - Various bug fixes. |
| 862 | |
Khaled Hosny | 505df5a | 2021-09-07 13:46:08 +0200 | [diff] [blame] | 863 | |
Khaled Hosny | 63e15ea | 2021-07-08 22:46:33 +0200 | [diff] [blame] | 864 | Overview of changes leading to 2.8.2 |
| 865 | Tuesday, July 8, 2021 |
| 866 | ==================================== |
| 867 | - Shaping LTR digits for RTL scripts now makes the native direction of the |
| 868 | digits LTR, applying shaping and positioning rules on the same glyph order as |
| 869 | Uniscribe. (Jonathan Kew, Khaled Hosny). |
| 870 | - Subsetting COLR v1 and CPAL tables is now supported. (Garret Rieger, Qunxin Liu) |
| 871 | - Various fixes and improvements to the subsetter. (Garret Rieger, Qunxin Liu, Behdad) |
| 872 | - When applying morx table, mark glyph widths should not be zeroed. (Jonathan Kew) |
| 873 | - GPOS is preferred over kerx, if GSUB was applied. (Behdad) |
| 874 | - Regional_Indicator pairs are grouped together when clustering. (Behdad) |
| 875 | - New API: |
| 876 | +hb_blob_create_or_fail() |
| 877 | +hb_blob_create_from_file_or_fail() |
| 878 | +hb_set_copy() |
| 879 | |
Khaled Hosny | 505df5a | 2021-09-07 13:46:08 +0200 | [diff] [blame] | 880 | |
Khaled Hosny | b37f03f | 2021-05-04 02:07:06 +0200 | [diff] [blame] | 881 | Overview of changes leading to 2.8.1 |
| 882 | Tuesday, May 4, 2021 |
| 883 | ==================================== |
| 884 | - Subsetter now fully supports GSUB/GPOS/GDEF tables (including variations); as |
| 885 | such, layout tables are retained by subsetter by default. (Garret Rieger, Qunxin Liu) |
| 886 | - Build scripts no longer check for FontConfig as HarfBuzz does not use it. |
| 887 | - hb-view supports iTerm2 and kitty inline image protocols (Khaled Hosny), |
| 888 | it can also use Chafa for terminal graphics if available (Hans Petter Jansson). |
| 889 | |
Khaled Hosny | 03538e8 | 2021-03-16 19:28:35 +0200 | [diff] [blame] | 890 | Overview of changes leading to 2.8.0 |
| 891 | Tuesday, March 16, 2021 |
| 892 | ==================================== |
| 893 | - Shape joining scripts other than Arabic/Syriac using the Universal Shaping Engine. |
| 894 | Previously these were shaped using the generalized Arabic shaper. (David Corbett) |
| 895 | - Fix regression in shaping of U+0B55 ORIYA SIGN OVERLINE. (David Corbett) |
| 896 | - Update language tags. (David Corbett) |
| 897 | - Variations: reduce error: do not round each interpolated delta. (Just van Rossum) |
| 898 | - Documentation improvements. (Khaled Hosny, Nathan Willis) |
| 899 | - Subsetter improvements: subsets most, if not all, lookup types now. (Garret Rieger, Qunxin Liu) |
| 900 | - Fuzzer-found fixes and other improvements when memory failures happen. (Behdad) |
| 901 | - Removed most atomic implementations now that we have C++11 atomic impl. (Behdad) |
| 902 | - General codebase upkeep; using more C++11 features: constexpr constructors, etc. (Behdad) |
| 903 | |
| 904 | |
Khaled Hosny | 7236c7e | 2020-12-27 01:59:00 +0200 | [diff] [blame] | 905 | Overview of changes leading to 2.7.4 |
| 906 | Sunday, December 27, 2020 |
| 907 | ==================================== |
| 908 | - Fix missing --enable-introspection configure option from previous release |
| 909 | tarball. |
| 910 | - Documentation updates. |
| 911 | |
Khaled Hosny | 505df5a | 2021-09-07 13:46:08 +0200 | [diff] [blame] | 912 | |
Khaled Hosny | 71a3b54 | 2020-12-23 15:33:15 +0200 | [diff] [blame] | 913 | Overview of changes leading to 2.7.3 |
| 914 | Wednesday, December 23, 2020 |
| 915 | ==================================== |
| 916 | - Update USE shaper to 2020-08-13 specification, and other improvements. |
| 917 | - Don’t disable liga feature in myanmar shaper, to match Uniscribe. |
| 918 | - Improvements to language and script tags handling. |
| 919 | - Update language system tag registry to OpenType 1.8.4 |
| 920 | - Support for serializing and deserializing Unicode buffers. Serialized buffers |
| 921 | are now delimited with `<>` or `[]` based on whether it is a Unicode or |
| 922 | glyphs buffer. |
| 923 | - Increase buffer work limits to handle fonts with many complex lookups. |
| 924 | - Handle more shaping operations in trace output. |
| 925 | - Memory access fixes. |
| 926 | - More OOM fixes. |
| 927 | - Improved documentation. |
| 928 | - Build system improvements. |
| 929 | - New API: |
| 930 | +hb_buffer_has_positions() |
| 931 | +hb_buffer_serialize() |
| 932 | +hb_buffer_serialize_unicode() |
| 933 | +hb_buffer_deserialize_unicode() |
| 934 | |
| 935 | |
Khaled Hosny | 9c98b2b | 2020-08-29 00:39:42 +0200 | [diff] [blame] | 936 | Overview of changes leading to 2.7.2 |
| 937 | Saturday, August 29, 2020 |
| 938 | ==================================== |
| 939 | - Fix a regression in the previous release that caused a crash with Kaithi. |
| 940 | - More OOM fixes. |
| 941 | |
| 942 | |
Ebrahim Byagowi | 05ef75c | 2020-08-13 20:52:03 +0430 | [diff] [blame] | 943 | Overview of changes leading to 2.7.1 |
Khaled Hosny | 9c98b2b | 2020-08-29 00:39:42 +0200 | [diff] [blame] | 944 | Thursday, August 13, 2020 |
Ebrahim Byagowi | 05ef75c | 2020-08-13 20:52:03 +0430 | [diff] [blame] | 945 | ==================================== |
| 946 | - ot-funcs now handles variable empty glyphs better when hvar/vvar isn't present. |
| 947 | - Reverted a GDEF processing regression. |
| 948 | - A couple of fixes to handle OOM better. |
| 949 | |
| 950 | |
Ebrahim Byagowi | a01c7a3 | 2020-07-25 12:27:31 +0430 | [diff] [blame] | 951 | Overview of changes leading to 2.7.0 |
| 952 | Saturday, July 25, 2020 |
| 953 | ==================================== |
| 954 | - Use an implementation for round that always rounds up, some minor fluctuations |
| 955 | are expected on var font specially when hb-ot callback is used. |
| 956 | - Fix an AAT's `kerx` issue on broken rendering of Devanagari Sangam MN. |
| 957 | - Remove AAT's `lcar` table support from _get_ligature_carets API, not even much |
| 958 | use on macOS installed fonts (only two files). GDEF support is the recommended |
| 959 | one and expected to work properly after issues fixed two releases ago. |
| 960 | - Minor memory fixes to handle OOM better specially in hb-ft. |
| 961 | - Minor .so files versioning scheme change and remove stable/unstable scheme |
| 962 | differences, was never used in practice (always default to stable scheme). |
| 963 | - We are now suggesting careful packaging of the library using meson, |
| 964 | https://github.com/harfbuzz/harfbuzz/wiki/Notes-on-migration-to-meson |
| 965 | for more information. |
| 966 | - Distribution package URL is changed, either use GitHub generated tarballs, |
| 967 | `https://github.com/harfbuzz/harfbuzz/archive/$pkgver.tar.gz` |
| 968 | or, even more preferably use commit hash of the release and git checkouts like, |
| 969 | `git+https://github.com/harfbuzz/harfbuzz#commit=$commit` |
| 970 | |
| 971 | |
Ebrahim Byagowi | e4203c1 | 2020-06-22 05:03:27 +0430 | [diff] [blame] | 972 | Overview of changes leading to 2.6.8 |
| 973 | Monday, June 22, 2020 |
| 974 | ==================================== |
| 975 | - New API to fetch glyph alternates from GSUB table. |
| 976 | - hb-coretext build fix for macOS < 10.10. |
| 977 | - Meson build fixes, cmake port removal is postponed but please prepare for |
| 978 | it and give us feedback. |
| 979 | Autotools is still our main build system however please consider |
| 980 | experimenting with meson also for packaging the library. |
| 981 | - New API: |
| 982 | +hb_ot_layout_lookup_get_glyph_alternates() |
| 983 | |
| 984 | |
Ebrahim Byagowi | fb46a32 | 2020-06-03 12:54:26 +0430 | [diff] [blame] | 985 | Overview of changes leading to 2.6.7 |
| 986 | Wednesday, June 3, 2020 |
| 987 | ==================================== |
| 988 | - Update to Unicode 13.0.0. |
| 989 | - Fix hb_ot_layout_get_ligature_carets for fonts without lcar table, it was |
| 990 | completely broken for all the other fonts since 2.1.2. |
| 991 | - As a part of our migration to meson, this release will be the last one |
| 992 | to provide cmake port files but autotools still is our main build system. |
| 993 | There is a possibility that the next version or the after be released |
| 994 | using meson. |
| 995 | |
| 996 | |
Ebrahim Byagowi | 4202568 | 2020-05-12 00:14:33 +0430 | [diff] [blame] | 997 | Overview of changes leading to 2.6.6 |
| 998 | Tuesday, May 12, 2020 |
| 999 | ==================================== |
| 1000 | - A fix in AAT kerning for Geeza Pro. |
| 1001 | - Better support for resource fork fonts on macOS. |
| 1002 | |
| 1003 | |
Ebrahim Byagowi | f9bc373 | 2020-04-17 22:37:48 +0430 | [diff] [blame] | 1004 | Overview of changes leading to 2.6.5 |
| 1005 | Friday, April 17, 2020 |
| 1006 | ==================================== |
| 1007 | - Add experimental meson build system. Autotools is still the primary |
| 1008 | and supported build system. |
| 1009 | - AAT is now always preferred for horizontal scripts when both AAT and OT |
| 1010 | layout tables exist at the same time. |
| 1011 | - Subsetter improvements. |
| 1012 | - New API: |
| 1013 | +hb_ft_font_lock_face() |
| 1014 | +hb_ft_font_unlock_face() |
| 1015 | |
| 1016 | |
Behdad Esfahbod | 3a74ee5 | 2019-10-29 12:27:03 -0700 | [diff] [blame] | 1017 | Overview of changes leading to 2.6.4 |
| 1018 | Monday, October 29, 2019 |
| 1019 | ==================================== |
| 1020 | - Small bug fix. |
| 1021 | - Build fixes. |
| 1022 | |
| 1023 | |
Behdad Esfahbod | ce11df1 | 2019-10-28 14:45:31 -0700 | [diff] [blame] | 1024 | Overview of changes leading to 2.6.3 |
| 1025 | Monday, October 28, 2019 |
| 1026 | ==================================== |
| 1027 | - Misc small fixes, mostly to build-related issues. |
| 1028 | - New API: |
| 1029 | +hb_font_get_nominal_glyphs() |
| 1030 | |
| 1031 | |
Behdad Esfahbod | e48ef08 | 2019-09-30 12:39:06 -0700 | [diff] [blame] | 1032 | Overview of changes leading to 2.6.2 |
| 1033 | Monday, September 30, 2019 |
| 1034 | ==================================== |
| 1035 | - Misc small fixes, mostly to build-related issues. |
| 1036 | |
| 1037 | |
Behdad Esfahbod | be97e9d | 2019-08-22 15:52:24 -0700 | [diff] [blame] | 1038 | Overview of changes leading to 2.6.1 |
| 1039 | Thursday, August 22, 2019 |
| 1040 | ==================================== |
| 1041 | - Fix regression with hb_font_create_sub_font scaling introduced in 2.6.0. |
| 1042 | - Change interpretation of font PTEM size / CoreText font size handling. |
| 1043 | See https://github.com/harfbuzz/harfbuzz/pull/1484 |
| 1044 | - hb-ot-font: Prefer symbol cmap subtable if present. |
| 1045 | - Apply 'dist'/'abvm'/'blwm' features to all scripts. |
| 1046 | - Drop experimental DirectWrite API. |
| 1047 | |
| 1048 | |
Behdad Esfahbod | 6461143 | 2019-08-13 22:20:54 -0700 | [diff] [blame] | 1049 | Overview of changes leading to 2.6.0 |
| 1050 | Tuesday, August 13, 2019 |
| 1051 | ==================================== |
| 1052 | - New OpenType metrics, baseline, and metadata table access APIs. |
| 1053 | - New API to set font variations to a named-instance. |
| 1054 | - New hb-gdi.h header and API for creating hb_face_t from HFONT. |
| 1055 | - Amalgam: Provide a single-file harfbuzz.cc file for easier alternate building. |
| 1056 | - More size-reduction configurable options, enabled by HB_TINY. |
| 1057 | - New API: |
| 1058 | +hb_font_set_var_named_instance() |
| 1059 | +hb_gdi_face_create() |
| 1060 | +hb_ot_layout_baseline_tag_t |
| 1061 | +hb_ot_layout_get_baseline() |
| 1062 | +hb_ot_meta_tag_t |
| 1063 | +hb_ot_meta_get_entry_tags() |
| 1064 | +hb_ot_meta_reference_entry() |
| 1065 | +hb_ot_metrics_tag_t |
| 1066 | +hb_ot_metrics_get_position() |
| 1067 | +hb_ot_metrics_get_variation() |
| 1068 | +hb_ot_metrics_get_x_variation() |
| 1069 | +hb_ot_metrics_get_y_variation() |
| 1070 | |
| 1071 | |
Behdad Esfahbod | b14e413 | 2019-06-26 10:44:10 -0700 | [diff] [blame] | 1072 | Overview of changes leading to 2.5.3 |
| 1073 | Wednesday, June 26, 2019 |
| 1074 | ==================================== |
| 1075 | - Fix UCD script data for Unicode 10+ scripts. This was broken since 2.5.0. |
| 1076 | - More optimizations for HB_TINY. |
| 1077 | |
| 1078 | |
Behdad Esfahbod | 6b44bf8 | 2019-06-20 11:57:19 -0700 | [diff] [blame] | 1079 | Overview of changes leading to 2.5.2 |
| 1080 | Thursday, June 20, 2019 |
| 1081 | ==================================== |
| 1082 | - More hb-config.hh facilities to shrink library size, namely when built as |
| 1083 | HB_TINY. |
| 1084 | - New documentation of custom configurations in CONFIG.md. |
| 1085 | - Fix build on gcc 4.8. That's supported again. |
| 1086 | - Universal Shaping Engine improvements thanks to David Corbett. |
| 1087 | - API Changes: Undeprecate some horizontal-kerning API and re-enable in hb-ft, |
| 1088 | such that Type1 fonts will continue kerning. |
| 1089 | |
| 1090 | |
Behdad Esfahbod | 93c4555 | 2019-05-31 22:53:27 -0700 | [diff] [blame] | 1091 | Overview of changes leading to 2.5.1 |
| 1092 | Friday, May 31, 2019 |
| 1093 | ==================================== |
| 1094 | - Fix build with various versions of Visual Studio. |
| 1095 | - Improved documentation, thanks to Nathan Willis. |
| 1096 | - Bugfix in subsetting glyf table. |
| 1097 | - Improved scripts for cross-compiling for Windows using mingw. |
| 1098 | - Rename HB_MATH_GLYPH_PART_FLAG_EXTENDER to HB_OT_MATH_GLYPH_PART_FLAG_EXTENDER. |
| 1099 | A deprecated macro is added for backwards-compatibility. |
| 1100 | |
| 1101 | |
Behdad Esfahbod | 5fd3ece | 2019-05-24 15:56:15 -0400 | [diff] [blame] | 1102 | Overview of changes leading to 2.5.0 |
| 1103 | Friday, May 24, 2019 |
| 1104 | ==================================== |
| 1105 | - This release does not include much functional changes, but includes major internal |
| 1106 | code-base changes. We now require C++11. Support for gcc 4.8 and earlier has been |
| 1107 | dropped. |
| 1108 | - New hb-config.hh facility for compiling smaller library for embedded and web usecases. |
luz paz | e2e3050 | 2022-01-16 07:00:53 -0500 | [diff] [blame] | 1109 | - New Unicode Character Database implementation that is half the size of previously-used |
Behdad Esfahbod | 5fd3ece | 2019-05-24 15:56:15 -0400 | [diff] [blame] | 1110 | UCDN. |
| 1111 | - Subsetter improvements. |
| 1112 | - Improved documentation, thanks to Nathan Willis. |
| 1113 | - Misc shaping fixes. |
| 1114 | |
| 1115 | |
Behdad Esfahbod | d6fc1d4 | 2019-03-28 21:21:26 -0700 | [diff] [blame] | 1116 | Overview of changes leading to 2.4.0 |
| 1117 | Monday, March 25, 2019 |
| 1118 | ==================================== |
| 1119 | - Unicode 12. |
| 1120 | - Misc fixes. |
| 1121 | - Subsetter improvements. |
| 1122 | - New API: |
| 1123 | HB_BUFFER_FLAG_DO_NOT_INSERT_DOTTED_CIRCLE |
| 1124 | hb_directwrite_face_create() |
| 1125 | |
| 1126 | |
Behdad Esfahbod | 55d1d7c | 2019-01-30 13:54:15 -0800 | [diff] [blame] | 1127 | Overview of changes leading to 2.3.1 |
| 1128 | Wednesday, January 30, 2019 |
| 1129 | ==================================== |
| 1130 | - AAT bug fixes. |
| 1131 | - Misc internal housekeeping cleanup. |
| 1132 | |
| 1133 | |
Behdad Esfahbod | 4941e95 | 2018-12-20 21:48:57 -0500 | [diff] [blame] | 1134 | Overview of changes leading to 2.3.0 |
| 1135 | Thursday, December 20, 2018 |
| 1136 | ==================================== |
| 1137 | - Fix regression on big-endian architectures. Ouch! |
| 1138 | - Misc bug and build fixes. |
| 1139 | - Fix subsetting of simple GSUB/GDEF. |
| 1140 | - Merge CFF / CFF2 support contributed by Adobe. This mostly involves |
| 1141 | the subsetter, but also get_glyph_extents on CFF fonts. |
| 1142 | |
| 1143 | New API in hb-aat.h: |
| 1144 | +hb_aat_layout_has_substitution() |
| 1145 | +hb_aat_layout_has_positioning() |
| 1146 | +hb_aat_layout_has_tracking() |
| 1147 | |
| 1148 | |
Behdad Esfahbod | dc41ece | 2018-11-29 11:53:53 -0500 | [diff] [blame] | 1149 | Overview of changes leading to 2.2.0 |
| 1150 | Thursday, November 29, 2018 |
| 1151 | ==================================== |
| 1152 | - Misc shaping bug fixes. |
| 1153 | - Add font variations named-instance API. |
| 1154 | - Deprecate font variations axis enumeration API and add replacement. |
| 1155 | - AAT shaping improvements: |
| 1156 | o Fixed 'kern' table Format 2 implementation. |
| 1157 | o Implement 'feat' table API for feature detection. |
| 1158 | o Blacklist 'GSUB' table of fonts from 'MUTF' foundry that also have 'morx'. |
| 1159 | |
| 1160 | New API: |
| 1161 | +hb_aat_layout_feature_type_t |
| 1162 | +hb_aat_layout_feature_selector_t |
| 1163 | +hb_aat_layout_get_feature_types() |
| 1164 | +hb_aat_layout_feature_type_get_name_id |
| 1165 | +hb_aat_layout_feature_selector_info_t |
| 1166 | +HB_AAT_LAYOUT_NO_SELECTOR_INDEX |
| 1167 | +hb_aat_layout_feature_type_get_selector_infos() |
| 1168 | +hb_ot_var_axis_flags_t |
| 1169 | +hb_ot_var_axis_info_t |
| 1170 | +hb_ot_var_get_axis_infos() |
| 1171 | +hb_ot_var_find_axis_info() |
| 1172 | +hb_ot_var_get_named_instance_count() |
| 1173 | +hb_ot_var_named_instance_get_subfamily_name_id() |
| 1174 | +hb_ot_var_named_instance_get_postscript_name_id() |
| 1175 | +hb_ot_var_named_instance_get_design_coords() |
| 1176 | |
| 1177 | Deprecated API: |
| 1178 | +HB_OT_VAR_NO_AXIS_INDEX |
| 1179 | +hb_ot_var_axis_t |
| 1180 | +hb_ot_var_get_axes() |
| 1181 | +hb_ot_var_find_axis() |
| 1182 | |
| 1183 | |
Behdad Esfahbod | e3a1a83 | 2018-11-16 16:53:25 -0800 | [diff] [blame] | 1184 | Overview of changes leading to 2.1.3 |
| 1185 | Friday, November 16, 2018 |
| 1186 | ==================================== |
| 1187 | - Fix AAT 'mort' shaping, which was broken in 2.1.2 |
| 1188 | |
| 1189 | |
Behdad Esfahbod | fdb29ab | 2018-11-16 15:38:11 -0800 | [diff] [blame] | 1190 | Overview of changes leading to 2.1.2 |
| 1191 | Friday, November 16, 2018 |
| 1192 | ==================================== |
| 1193 | - Various internal changes. |
| 1194 | - AAT shaping improvements: |
| 1195 | o Implement kern table Format 1 state-machine-based kerning. |
| 1196 | o Implement cross-stream kerning (cursive positioning, etc). |
| 1197 | o Ignore emptyish GSUB tables (zero scripts) if morx present. |
| 1198 | o Don't apply GPOS if morx is being applied. Matches Apple. |
| 1199 | |
| 1200 | |
| 1201 | -Overview of changes leading to 2.1.1 |
Behdad Esfahbod | 8be74d8 | 2018-11-05 18:47:22 -0500 | [diff] [blame] | 1202 | Monday, November 5, 2018 |
| 1203 | ==================================== |
| 1204 | - AAT improvements: |
| 1205 | o Implement 'mort' table. |
| 1206 | o Implement 'kern' subtables Format 1 and Format 3. |
| 1207 | |
| 1208 | |
Behdad Esfahbod | 1019391 | 2018-10-30 15:52:26 -0700 | [diff] [blame] | 1209 | Overview of changes leading to 2.1.0 |
| 1210 | Tuesday, October 30, 2018 |
| 1211 | ==================================== |
| 1212 | - AAT shaping improvements: |
| 1213 | o Allow user controlling AAT features, for whole buffer only currently. |
| 1214 | o Several 'morx' fixes. |
| 1215 | o Implement tuple-kerns in 'kerx'; Fixes kerning with Apple default |
| 1216 | San Francisco fonts. |
| 1217 | - Support for color fonts: |
| 1218 | o COLR/CPAL API to fetch color layers. |
| 1219 | o SVG table to fetch SVG documents. |
| 1220 | o CBDT/sbix API to fetch PNG images. |
| 1221 | - New 'name' table API. |
| 1222 | - hb-ot-font now uses 'VORG' table to correctly position CFF glyphs |
| 1223 | in vertical layout. |
| 1224 | - Various fuzzer-found bug fixes. |
| 1225 | |
| 1226 | Changed API: |
| 1227 | |
| 1228 | A type and a macro added in 2.0.0 were renamed: |
| 1229 | |
| 1230 | hb_name_id_t -> hb_ot_name_id_t |
| 1231 | HB_NAME_ID_INVALID -> HB_OT_NAME_ID_INVALID |
| 1232 | |
| 1233 | New API: |
| 1234 | |
| 1235 | +hb_color_t |
| 1236 | +HB_COLOR |
| 1237 | +hb_color_get_alpha() |
| 1238 | +hb_color_get_red() |
| 1239 | +hb_color_get_green() |
| 1240 | +hb_color_get_blue() |
| 1241 | +hb_ot_color_has_palettes() |
| 1242 | +hb_ot_color_palette_get_count() |
| 1243 | +hb_ot_color_palette_get_name_id() |
| 1244 | +hb_ot_color_palette_color_get_name_id() |
| 1245 | +hb_ot_color_palette_flags_t |
| 1246 | +hb_ot_color_palette_get_flags() |
| 1247 | +hb_ot_color_palette_get_colors() |
| 1248 | +hb_ot_color_has_layers() |
| 1249 | +hb_ot_color_layer_t |
| 1250 | +hb_ot_color_glyph_get_layers() |
| 1251 | +hb_ot_color_has_svg() |
| 1252 | +hb_ot_color_glyph_reference_svg() |
| 1253 | +hb_ot_color_has_png() |
| 1254 | +hb_ot_color_glyph_reference_png() |
| 1255 | |
| 1256 | +hb_ot_name_id_t |
| 1257 | +HB_OT_NAME_ID_INVALID |
| 1258 | +HB_OT_NAME_ID_COPYRIGHT |
| 1259 | +HB_OT_NAME_ID_FONT_FAMILY |
| 1260 | +HB_OT_NAME_ID_FONT_SUBFAMILY |
| 1261 | +HB_OT_NAME_ID_UNIQUE_ID |
| 1262 | +HB_OT_NAME_ID_FULL_NAME |
| 1263 | +HB_OT_NAME_ID_VERSION_STRING |
| 1264 | +HB_OT_NAME_ID_POSTSCRIPT_NAME |
| 1265 | +HB_OT_NAME_ID_TRADEMARK |
| 1266 | +HB_OT_NAME_ID_MANUFACTURER |
| 1267 | +HB_OT_NAME_ID_DESIGNER |
| 1268 | +HB_OT_NAME_ID_DESCRIPTION |
| 1269 | +HB_OT_NAME_ID_VENDOR_URL |
| 1270 | +HB_OT_NAME_ID_DESIGNER_URL |
| 1271 | +HB_OT_NAME_ID_LICENSE |
| 1272 | +HB_OT_NAME_ID_LICENSE_URL |
| 1273 | +HB_OT_NAME_ID_TYPOGRAPHIC_FAMILY |
| 1274 | +HB_OT_NAME_ID_TYPOGRAPHIC_SUBFAMILY |
| 1275 | +HB_OT_NAME_ID_MAC_FULL_NAME |
| 1276 | +HB_OT_NAME_ID_SAMPLE_TEXT |
| 1277 | +HB_OT_NAME_ID_CID_FINDFONT_NAME |
| 1278 | +HB_OT_NAME_ID_WWS_FAMILY |
| 1279 | +HB_OT_NAME_ID_WWS_SUBFAMILY |
| 1280 | +HB_OT_NAME_ID_LIGHT_BACKGROUND |
| 1281 | +HB_OT_NAME_ID_DARK_BACKGROUND |
| 1282 | +HB_OT_NAME_ID_VARIATIONS_PS_PREFIX |
| 1283 | +hb_ot_name_entry_t |
| 1284 | +hb_ot_name_list_names() |
| 1285 | +hb_ot_name_get_utf8() |
| 1286 | +hb_ot_name_get_utf16() |
| 1287 | +hb_ot_name_get_utf32() |
| 1288 | |
| 1289 | |
Behdad Esfahbod | 0a3b7a0 | 2018-10-20 13:14:07 -0700 | [diff] [blame] | 1290 | Overview of changes leading to 2.0.2 |
| 1291 | Saturday, October 20, 2018 |
| 1292 | ==================================== |
| 1293 | - Fix two minor memory access issues in AAT tables. |
| 1294 | |
| 1295 | |
Behdad Esfahbod | 7c2c8ac | 2018-10-19 19:37:46 -0700 | [diff] [blame] | 1296 | Overview of changes leading to 2.0.1 |
| 1297 | Friday, October 19, 2018 |
| 1298 | ==================================== |
| 1299 | - Fix hb-version.h reported release version that went wrong (1.8.0) |
| 1300 | with previous release. |
| 1301 | - Fix extrapolation in 'trak' table. |
| 1302 | - Fix hb-font infinite-recursion issue with some font funcs and |
| 1303 | subclassed fonts. |
| 1304 | - Implement variation-kerning format in kerx table, although without |
| 1305 | variation. |
| 1306 | - Fix return value of hb_map_is_empty(). |
| 1307 | |
| 1308 | |
Behdad Esfahbod | 3d9a030 | 2018-10-18 05:58:17 -0700 | [diff] [blame] | 1309 | Overview of changes leading to 2.0.0 |
Behdad Esfahbod | 7c2c8ac | 2018-10-19 19:37:46 -0700 | [diff] [blame] | 1310 | Thursday, October 18, 2018 |
Behdad Esfahbod | 3d9a030 | 2018-10-18 05:58:17 -0700 | [diff] [blame] | 1311 | ==================================== |
| 1312 | - Added AAT shaping support (morx/kerx/trak). |
| 1313 | Automatically used if GSUB/GPOS are not available respectively. |
| 1314 | Set HB_OPTIONS=aat env var to have morx/kerx preferred over |
| 1315 | GSUB/GPOS. |
| 1316 | - Apply TrueType kern table internally, instead of relying on |
| 1317 | hb_font_t callbacks. |
| 1318 | - Khmer shaper significantly rewritten to better match Uniscribe. |
| 1319 | - Indic3 tags ('dev3', etc) are passed to USE shaper. |
| 1320 | - .dfont Mac font containers implemented. |
| 1321 | - Script- and language-mapping revamped to better use BCP 47. |
| 1322 | - Misc USE and Indic fixes. |
| 1323 | - Misc everything fixes. |
| 1324 | - Too many things to list. Biggest release since 0.9.1, with |
| 1325 | over 500 commits in just over 5 weeks! Didn't intend it to |
| 1326 | be a big release. Just happened to become. |
| 1327 | - hb-ft now locks underlying FT_Face during use. |
| 1328 | |
| 1329 | API changes: |
| 1330 | |
| 1331 | - Newly-created hb_font_t's now have our internal "hb-ot-font" |
| 1332 | callbacks set on them, so they should work out of the box |
| 1333 | without any callbacks set. If callbacks are set, everything |
| 1334 | is back to what it was before, the fallback callbacks are |
| 1335 | null. If you to get the internal implementation modified, |
| 1336 | sub_font it. |
| 1337 | |
| 1338 | - New hb_font_funcs_set_nominal_glyphs_func() allows speeding |
| 1339 | up character to glyph mapping. |
| 1340 | |
| 1341 | New API: |
| 1342 | +HB_FEATURE_GLOBAL_START |
| 1343 | +HB_FEATURE_GLOBAL_END |
| 1344 | +hb_buffer_set_invisible_glyph() |
| 1345 | +hb_buffer_get_invisible_glyph() |
| 1346 | +hb_font_funcs_set_nominal_glyphs_func() |
| 1347 | +hb_ot_layout_table_select_script() |
| 1348 | +hb_ot_layout_script_select_language() |
| 1349 | +hb_ot_layout_feature_get_name_ids() |
| 1350 | +hb_ot_layout_feature_get_characters() |
| 1351 | +hb_name_id_t |
| 1352 | +HB_NAME_ID_INVALID |
| 1353 | +HB_OT_MAX_TAGS_PER_SCRIPT |
| 1354 | +hb_ot_tags_from_script_and_language() |
| 1355 | +hb_ot_tags_to_script_and_language() |
| 1356 | |
| 1357 | Deprecated API: |
| 1358 | -hb_font_funcs_set_glyph_func() |
| 1359 | -hb_unicode_eastasian_width_func_t |
| 1360 | -hb_unicode_funcs_set_eastasian_width_func() |
| 1361 | -hb_unicode_eastasian_width() |
| 1362 | -hb_unicode_decompose_compatibility_func_t |
| 1363 | -HB_UNICODE_MAX_DECOMPOSITION_LEN |
| 1364 | -hb_unicode_funcs_set_decompose_compatibility_func() |
| 1365 | -hb_unicode_decompose_compatibility() |
| 1366 | -hb_font_funcs_set_glyph_h_kerning_func() |
| 1367 | -hb_font_funcs_set_glyph_v_kerning_func() |
| 1368 | -hb_font_get_glyph_h_kerning() |
| 1369 | -hb_font_get_glyph_v_kerning() |
| 1370 | -hb_font_get_glyph_kerning_for_direction() |
| 1371 | -hb_ot_layout_table_choose_script() |
| 1372 | -hb_ot_layout_script_find_language() |
| 1373 | -hb_ot_tags_from_script() |
| 1374 | -hb_ot_tag_from_language() |
| 1375 | |
| 1376 | |
Behdad Esfahbod | 54d332d | 2018-09-10 11:37:24 +0200 | [diff] [blame] | 1377 | Overview of changes leading to 1.9.0 |
| 1378 | Monday, September 10, 2018 |
| 1379 | ==================================== |
| 1380 | - Added 'cmap' API to hb_face_t. |
| 1381 | - Face-builder API. |
| 1382 | - hb-ot-font re-creation should be much leaner now, as the |
| 1383 | font tables it uses are cached on hb_face_t now. |
| 1384 | - Internal source header file name changes: |
| 1385 | hb-*-private.hh is renamed to hb-*.hh. |
| 1386 | |
| 1387 | New API: |
| 1388 | +HB_UNICODE_MAX |
| 1389 | +hb_face_collect_unicodes() |
| 1390 | +hb_face_collect_variation_selectors() |
| 1391 | +hb_face_collect_variation_unicodes() |
| 1392 | +hb_face_builder_create() |
| 1393 | +hb_face_builder_add_table() |
| 1394 | |
| 1395 | |
Behdad Esfahbod | 63be5dc | 2018-08-14 10:59:34 -0700 | [diff] [blame] | 1396 | Overview of changes leading to 1.8.8 |
| 1397 | Tuesday, August 14, 2018 |
| 1398 | ==================================== |
| 1399 | - Fix hb-icu crash on architectures where compare_exchange_weak() can |
| 1400 | fail falsely. This bug was introduced in 1.8.4. |
| 1401 | https://bugs.chromium.org/p/chromium/issues/detail?id=873568 |
| 1402 | - More internal refactoring of atomic operations and singletons. |
| 1403 | - API changes: |
| 1404 | The following functions do NOT reference their return value before |
| 1405 | returning: |
| 1406 | * hb_unicode_funcs_get_default() |
| 1407 | * hb_glib_get_unicode_funcs() |
| 1408 | * hb_icu_get_unicode_funcs() |
| 1409 | This is consistent with their naming ("get", instead of "reference") |
| 1410 | as well as how they are used in the wild (ie. no one calls destroy() |
| 1411 | on their return value.) |
| 1412 | |
| 1413 | |
Behdad Esfahbod | b6fdcf4 | 2018-08-08 21:54:08 -0700 | [diff] [blame] | 1414 | Overview of changes leading to 1.8.7 |
| 1415 | Wednesday, August 8, 2018 |
| 1416 | ==================================== |
| 1417 | - Fix assertion failure with GDEF-blacklisted fonts. |
| 1418 | |
| 1419 | |
Behdad Esfahbod | e49a38b | 2018-08-07 09:55:42 -0700 | [diff] [blame] | 1420 | Overview of changes leading to 1.8.6 |
| 1421 | Tuesday, August 7, 2018 |
| 1422 | ==================================== |
| 1423 | - Internal code shuffling. |
| 1424 | - New API to speed up getting advance widths for implementations |
| 1425 | that have heavy overhead in get_h_advance callback: |
| 1426 | +hb_font_funcs_set_glyph_h_advances_func |
| 1427 | +hb_font_funcs_set_glyph_v_advances_func |
| 1428 | +hb_font_get_glyph_advances_for_direction |
| 1429 | +hb_font_get_glyph_h_advances |
| 1430 | +hb_font_get_glyph_h_advances_func_t |
| 1431 | +hb_font_get_glyph_v_advances |
| 1432 | +hb_font_get_glyph_v_advances_func_t |
| 1433 | |
| 1434 | |
Behdad Esfahbod | 44d1fb3 | 2018-08-01 14:51:51 -0700 | [diff] [blame] | 1435 | Overview of changes leading to 1.8.5 |
| 1436 | Wednesday, August 1, 2018 |
| 1437 | ==================================== |
| 1438 | - Major Khmer shaper improvements to better match Microsoft. |
| 1439 | - Indic bug fixes. |
| 1440 | - Internal improvements to atomic operations. |
| 1441 | |
| 1442 | |
Behdad Esfahbod | 68310a6 | 2018-07-17 13:20:40 +0200 | [diff] [blame] | 1443 | Overview of changes leading to 1.8.4 |
| 1444 | Tuesday, July 17, 2018 |
| 1445 | ==================================== |
| 1446 | - Fix build on non-C++11. |
| 1447 | - Use C++-style GCC atomics and C++11 atomics. |
| 1448 | |
| 1449 | |
Behdad Esfahbod | 2b76767 | 2018-07-11 15:27:13 +0200 | [diff] [blame] | 1450 | Overview of changes leading to 1.8.3 |
| 1451 | Wednesday, July 11, 2018 |
| 1452 | ==================================== |
| 1453 | - A couple of Indic / USE bug fixes. |
| 1454 | - Disable vectorization, as it was causing unaligned access bus error on |
| 1455 | certain 32bit architectures. |
| 1456 | |
| 1457 | |
Behdad Esfahbod | 343e8c6 | 2018-07-03 12:43:59 +0430 | [diff] [blame] | 1458 | Overview of changes leading to 1.8.2 |
| 1459 | Tuesday, July 3, 2018 |
| 1460 | ==================================== |
| 1461 | - Fix infinite loop in Khmer shaper. |
| 1462 | - Improve hb_blob_create_from_file() for streams. |
| 1463 | |
| 1464 | |
Behdad Esfahbod | 3654d9b | 2018-06-12 19:38:04 -0400 | [diff] [blame] | 1465 | Overview of changes leading to 1.8.1 |
| 1466 | Tuesday, June 12, 2018 |
| 1467 | ==================================== |
| 1468 | - Fix hb-version.h file generation; last two releases went out with wrong ones. |
| 1469 | - Add correctness bug in hb_set_t operations, introduced in 1.7.7. |
| 1470 | - Remove HB_SUBSET_BUILTIN build option. Not necessary. |
| 1471 | |
Behdad Esfahbod | 343e8c6 | 2018-07-03 12:43:59 +0430 | [diff] [blame] | 1472 | |
Behdad Esfahbod | 37986aa | 2018-06-05 18:04:40 -0700 | [diff] [blame] | 1473 | Overview of changes leading to 1.8.0 |
| 1474 | Tuesday, June 5, 2018 |
| 1475 | ==================================== |
| 1476 | - Update to Unicode 11.0.0. |
| 1477 | |
Behdad Esfahbod | 3654d9b | 2018-06-12 19:38:04 -0400 | [diff] [blame] | 1478 | |
Behdad Esfahbod | df01f3e | 2018-06-05 15:17:39 -0700 | [diff] [blame] | 1479 | Overview of changes leading to 1.7.7 |
| 1480 | Tuesday, June 5, 2018 |
| 1481 | ==================================== |
| 1482 | - Lots of internal changes, but not yet exposed externally. |
| 1483 | - All HarfBuzz objects are significantly smaller in size now. |
| 1484 | - Sinhala: Position repha on top of post-consonant, not base. |
| 1485 | This better matches Windows 10 behavior, which was changed |
| 1486 | from previous Windows versions. |
| 1487 | - New build options: |
| 1488 | o New cpp macro HB_NO_ATEXIT |
| 1489 | o New cpp macro HB_SUBSET_BUILTIN |
| 1490 | - Significant libharfbuzz-subset changes. API subject to change. |
| 1491 | - New API in libharfbuzz: |
| 1492 | |
| 1493 | +hb_blob_create_from_file() |
| 1494 | +hb_face_count() |
| 1495 | |
| 1496 | A hashmap implementation: |
| 1497 | +hb-map.h |
| 1498 | +HB_MAP_VALUE_INVALID |
| 1499 | +hb_map_t |
| 1500 | +hb_map_create() |
| 1501 | +hb_map_get_empty() |
| 1502 | +hb_map_reference() |
| 1503 | +hb_map_destroy() |
| 1504 | +hb_map_set_user_data() |
| 1505 | +hb_map_get_user_data() |
| 1506 | +hb_map_allocation_successful() |
| 1507 | +hb_map_clear() |
| 1508 | +hb_map_is_empty() |
| 1509 | +hb_map_get_population() |
| 1510 | +hb_map_set() |
| 1511 | +hb_map_get() |
| 1512 | +hb_map_del() |
| 1513 | +hb_map_has() |
| 1514 | |
| 1515 | |
Behdad Esfahbod | ff2f814 | 2018-03-07 16:05:14 +0100 | [diff] [blame] | 1516 | Overview of changes leading to 1.7.6 |
| 1517 | Wednesday, March 7, 2018 |
| 1518 | ==================================== |
| 1519 | |
| 1520 | - Fix to hb_set_t binary operations. Ouch. |
| 1521 | - New experimental harfbuzz-subset library. All of hb-subset.h |
| 1522 | is experimental right now and API WILL change. |
| 1523 | |
| 1524 | - New API: |
| 1525 | hb_blob_copy_writable_or_fail() |
| 1526 | HB_OT_TAG_BASE |
| 1527 | hb_set_previous() |
| 1528 | hb_set_previous_range() |
| 1529 | |
| 1530 | |
Behdad Esfahbod | f0b700d | 2018-01-30 11:16:51 -0800 | [diff] [blame] | 1531 | Overview of changes leading to 1.7.5 |
| 1532 | Tuesday, January 30, 2018 |
| 1533 | ==================================== |
| 1534 | |
| 1535 | - Separate Khmer shaper from Indic. |
| 1536 | - First stab at AAT morx. Not hooked up. |
| 1537 | - Misc bug fixes. |
| 1538 | |
| 1539 | |
Behdad Esfahbod | 007a2a4 | 2017-12-20 12:09:00 -0500 | [diff] [blame] | 1540 | Overview of changes leading to 1.7.4 |
| 1541 | Wednesday, December 20, 2017 |
| 1542 | ==================================== |
| 1543 | |
| 1544 | - Fix collect_glyphs() regression caused by hb_set_t changes. |
| 1545 | |
| 1546 | |
Behdad Esfahbod | b5bbb79 | 2017-12-18 09:18:51 -0500 | [diff] [blame] | 1547 | Overview of changes leading to 1.7.3 |
| 1548 | Monday, December 18, 2017 |
| 1549 | ==================================== |
| 1550 | |
| 1551 | - hb_set_t performance tuning and optimizations. |
| 1552 | - Speed up collect_glyphs() and reject garbage data. |
| 1553 | - In hb_coretext_font_create() set font point-size (ptem). |
| 1554 | - Misc fixes. |
| 1555 | |
| 1556 | |
Behdad Esfahbod | 843f7f7 | 2017-12-04 08:52:39 -0800 | [diff] [blame] | 1557 | Overview of changes leading to 1.7.2 |
| 1558 | Monday, December 4, 2017 |
| 1559 | ==================================== |
| 1560 | |
| 1561 | - Optimize hb_set_add_range(). |
| 1562 | - Misc fixes. |
| 1563 | - New API: |
| 1564 | hb_coretext_font_create() |
| 1565 | |
| 1566 | |
Behdad Esfahbod | f93c6f8 | 2017-11-14 11:09:19 -0800 | [diff] [blame] | 1567 | Overview of changes leading to 1.7.1 |
| 1568 | Tuesday, November 14, 2017 |
| 1569 | ==================================== |
| 1570 | |
| 1571 | - Fix atexit object destruction regression. |
| 1572 | - Fix minor integer-overflow. |
| 1573 | |
| 1574 | |
Behdad Esfahbod | e5d7098 | 2017-11-13 09:42:37 -0800 | [diff] [blame] | 1575 | Overview of changes leading to 1.7.0 |
| 1576 | Monday, November 13, 2017 |
| 1577 | ==================================== |
| 1578 | |
| 1579 | - Minor Indic fixes. |
| 1580 | - Implement kerning and glyph names in hb-ot-font. |
| 1581 | - Various DSO optimization re .data and .bss sizes. |
| 1582 | - Make C++11 optional; build fixes. |
| 1583 | - Mark all other backends "unsafe-to-break". |
| 1584 | - Graphite fix. |
| 1585 | |
| 1586 | |
Behdad Esfahbod | 223686d | 2017-10-26 12:52:02 -0600 | [diff] [blame] | 1587 | Overview of changes leading to 1.6.3 |
| 1588 | Thursday, October 26th, 2017 |
| 1589 | ==================================== |
| 1590 | |
| 1591 | - Fix hb_set_t some more. Should be solid now. |
| 1592 | - Implement get_glyph_name() for hb-ot-font. |
| 1593 | - Misc fixes. |
| 1594 | |
| 1595 | |
Behdad Esfahbod | 3b7388a | 2017-10-23 14:35:16 -0400 | [diff] [blame] | 1596 | Overview of changes leading to 1.6.2 |
| 1597 | Monday, October 23nd, 2017 |
| 1598 | ==================================== |
| 1599 | |
| 1600 | - Yesterday's release had a bad crasher; don't use it. That's what |
| 1601 | happens when one works on Sunday... |
ebraminio | 7c6937e | 2017-11-20 14:49:22 -0500 | [diff] [blame] | 1602 | https://github.com/harfbuzz/harfbuzz/issues/578 |
Behdad Esfahbod | 3b7388a | 2017-10-23 14:35:16 -0400 | [diff] [blame] | 1603 | - Build fixes for FreeBSD and Chrome Android. |
| 1604 | |
| 1605 | |
Behdad Esfahbod | 0ca915e | 2017-10-22 17:38:33 -0400 | [diff] [blame] | 1606 | Overview of changes leading to 1.6.1 |
| 1607 | Sunday, October 22nd, 2017 |
| 1608 | ==================================== |
| 1609 | |
| 1610 | - Don't skip over COMBINING GRAPHEME JOINER when ligating, etc. |
ebraminio | 7c6937e | 2017-11-20 14:49:22 -0500 | [diff] [blame] | 1611 | To be refined: https://github.com/harfbuzz/harfbuzz/issues/554 |
Behdad Esfahbod | 0ca915e | 2017-10-22 17:38:33 -0400 | [diff] [blame] | 1612 | - Faster hb_set_t implementation. |
| 1613 | - Don't use deprecated ICU API. |
| 1614 | - Fix undefined-behavior in Myanmar shaper, introduced in 1.6.0 |
| 1615 | - Deprecated API: |
| 1616 | hb_set_invert() |
| 1617 | |
| 1618 | |
Behdad Esfahbod | 25846cc | 2017-10-13 16:30:33 +0200 | [diff] [blame] | 1619 | Overview of changes leading to 1.6.0 |
| 1620 | Friday, October the 13th, 2017 |
| 1621 | ==================================== |
| 1622 | |
| 1623 | - Update to Unicode 10. |
| 1624 | |
| 1625 | - Various Indic and Universal Shaping Engine fixes as a result of |
| 1626 | HarfBuzz Hackfest with Jonathan Kew at Web Engines Hackfest at |
| 1627 | the Igalia offices in A Coruña, Spain. Thanks Igalia for having |
| 1628 | us! |
| 1629 | |
| 1630 | - Implement Unicode Arabic Mark Ordering Algorithm UTR#53. |
| 1631 | |
| 1632 | - Implement optical sizing / tracking in CoreText backend, using |
| 1633 | new API hb_font_set_ptem(). |
| 1634 | |
| 1635 | - Allow notifying hb_font_t that underlying FT_Face changed sizing, |
| 1636 | using new API hb_ft_font_changed(). |
| 1637 | |
| 1638 | - More Graphite backend RTL fixes. |
| 1639 | |
| 1640 | - Fix caching of variable font shaping plans. |
| 1641 | |
| 1642 | - hb-view / hb-shape now accept following new arguments: |
| 1643 | |
| 1644 | o --unicodes: takes a list of hex numbers that represent Unicode |
| 1645 | codepoints. |
| 1646 | |
| 1647 | New API: |
| 1648 | +hb_face_get_table_tags() |
| 1649 | +hb_font_set_ptem() |
| 1650 | +hb_font_get_ptem() |
| 1651 | +hb_ft_font_changed() |
| 1652 | |
| 1653 | |
Behdad Esfahbod | a984e0c | 2017-09-05 11:18:35 -0700 | [diff] [blame] | 1654 | Overview of changes leading to 1.5.1 |
| 1655 | Tuesday, September 5, 2017 |
| 1656 | ==================================== |
| 1657 | |
| 1658 | - Fix "unsafe-to-break" in fallback shaping and other corner cases. |
| 1659 | All our tests pass with --verify now, meaning unsafe-to-break API |
| 1660 | works as expected. |
| 1661 | - Add --unicodes to hb-view / hb-shape. |
| 1662 | - [indic] Treat Consonant_With_Stacker as consonant. This will need |
| 1663 | further tweaking. |
| 1664 | - hb_buffer_diff() tweaks. |
| 1665 | |
| 1666 | |
Behdad Esfahbod | e8b364b | 2017-08-23 15:00:45 -0700 | [diff] [blame] | 1667 | Overview of changes leading to 1.5.0 |
| 1668 | Wednesday, August 23, 2017 |
| 1669 | ==================================== |
| 1670 | |
| 1671 | - Misc new API, for appending a buffer to another, and for comparing |
| 1672 | contents of two buffers for types of differences. |
| 1673 | |
| 1674 | - New "unsafe-to-break" API. Can be used to speed up reshaping |
| 1675 | in line-breaking situations. Essentially, after shaping, it returns |
| 1676 | positions in the input string (some of the cluster boundaries) that |
| 1677 | are "safe to break" in that if the text is segmented at that position |
| 1678 | and two sides reshaped and concatenated, the shaping result is |
| 1679 | exactly the same as shaping the text in one piece. |
| 1680 | |
| 1681 | hb-view and hb-shape and hb-shape now take --verify, which verifies |
| 1682 | the above property. |
| 1683 | |
| 1684 | Some corner cases of the implementation are still not quite working. |
| 1685 | Those will be fixed in subsequent releases. |
| 1686 | |
| 1687 | - New API: |
| 1688 | |
| 1689 | hb_buffer_append() |
| 1690 | |
| 1691 | hb_glyph_flags_t |
| 1692 | HB_GLYPH_FLAG_UNSAFE_TO_BREAK |
| 1693 | HB_GLYPH_FLAG_DEFINED |
| 1694 | hb_glyph_info_get_glyph_flags() |
| 1695 | |
| 1696 | HB_BUFFER_SERIALIZE_FLAG_GLYPH_FLAGS |
| 1697 | |
| 1698 | hb_buffer_diff_flags_t |
| 1699 | HB_BUFFER_DIFF_FLAG_EQUAL |
| 1700 | HB_BUFFER_DIFF_FLAG_CONTENT_TYPE_MISMATCH |
| 1701 | HB_BUFFER_DIFF_FLAG_LENGTH_MISMATCH |
| 1702 | HB_BUFFER_DIFF_FLAG_NOTDEF_PRESENT |
| 1703 | HB_BUFFER_DIFF_FLAG_DOTTED_CIRCLE_PRESENT |
| 1704 | HB_BUFFER_DIFF_FLAG_CODEPOINT_MISMATCH |
| 1705 | HB_BUFFER_DIFF_FLAG_CLUSTER_MISMATCH |
| 1706 | HB_BUFFER_DIFF_FLAG_GLYPH_FLAGS_MISMATCH |
| 1707 | HB_BUFFER_DIFF_FLAG_POSITION_MISMATCH |
| 1708 | hb_buffer_diff |
| 1709 | |
| 1710 | |
Behdad Esfahbod | 7917792 | 2017-08-08 13:17:03 -0700 | [diff] [blame] | 1711 | Overview of changes leading to 1.4.8 |
| 1712 | Tuesday, August 8, 2017 |
| 1713 | ==================================== |
| 1714 | |
| 1715 | - Major fix to avar table handling. |
| 1716 | - Rename hb-shape --show-message to --trace. |
| 1717 | - Build fixes. |
| 1718 | |
| 1719 | |
Behdad Esfahbod | fc15e60 | 2017-07-18 11:24:42 -0700 | [diff] [blame] | 1720 | Overview of changes leading to 1.4.7 |
| 1721 | Tuesday, July 18, 2017 |
| 1722 | ==================================== |
| 1723 | |
| 1724 | - Multiple Indic, Tibetan, and Cham fixes. |
| 1725 | - CoreText: Allow disabling kerning. |
| 1726 | - Adjust Arabic feature order again. |
| 1727 | - Misc build fixes. |
| 1728 | |
| 1729 | |
Behdad Esfahbod | 141b33d | 2017-04-23 16:19:13 -0700 | [diff] [blame] | 1730 | Overview of changes leading to 1.4.6 |
| 1731 | Sunday, April 23, 2017 |
| 1732 | ==================================== |
| 1733 | |
| 1734 | - Graphite2: Fix RTL positioning issue. |
| 1735 | - Backlist GDEF of more versions of Padauk and Tahoma. |
| 1736 | - New, experimental, cmake alternative build system. |
| 1737 | |
| 1738 | |
Behdad Esfahbod | 60e2586 | 2017-03-10 23:02:28 -0800 | [diff] [blame] | 1739 | Overview of changes leading to 1.4.5 |
| 1740 | Friday, March 10, 2017 |
| 1741 | ==================================== |
| 1742 | |
| 1743 | - Revert "Fix Context lookup application when moving back after a glyph..." |
| 1744 | This introduced memory access problems. To be fixed properly soon. |
| 1745 | |
| 1746 | |
Behdad Esfahbod | 8e42c3c | 2017-03-05 13:54:56 -0800 | [diff] [blame] | 1747 | Overview of changes leading to 1.4.4 |
| 1748 | Sunday, March 5, 2017 |
| 1749 | ==================================== |
| 1750 | |
| 1751 | - Fix Context lookup application when moving back after a glyph deletion. |
| 1752 | - Fix buffer-overrun in Bengali. |
| 1753 | |
| 1754 | |
Behdad Esfahbod | 6685d28 | 2017-02-25 11:35:05 -0800 | [diff] [blame] | 1755 | Overview of changes leading to 1.4.3 |
| 1756 | Saturday, February 25, 2017 |
| 1757 | ==================================== |
| 1758 | |
| 1759 | - Route Adlam script to Arabic shaper. |
| 1760 | - Misc fixes. |
| 1761 | - New API: |
| 1762 | hb_font_set_face() |
| 1763 | - Deprecate API: |
| 1764 | hb_graphite2_font_get_gr_font() |
| 1765 | |
| 1766 | |
Behdad Esfahbod | 6af6c11 | 2017-01-23 18:35:00 -0800 | [diff] [blame] | 1767 | Overview of changes leading to 1.4.2 |
| 1768 | Monday, January 23, 2017 |
| 1769 | ==================================== |
| 1770 | |
| 1771 | - Implement OpenType Font Variation tables avar/fvar/HVAR/VVAR. |
| 1772 | - hb-shape and hb-view now accept --variations. |
| 1773 | - New API: |
| 1774 | |
| 1775 | hb_variation_t |
| 1776 | hb_variation_from_string() |
| 1777 | hb_variation_to_string() |
| 1778 | |
| 1779 | hb_font_set_variations() |
| 1780 | hb_font_set_var_coords_design() |
| 1781 | hb_font_get_var_coords_normalized() |
| 1782 | |
| 1783 | hb-ot-var.h: |
| 1784 | hb_ot_var_axis_t |
| 1785 | hb_ot_var_has_data() |
| 1786 | hb_ot_var_get_axis_count() |
| 1787 | hb_ot_var_get_axes() |
| 1788 | hb_ot_var_find_axis() |
| 1789 | hb_ot_var_normalize_variations() |
| 1790 | hb_ot_var_normalize_coords() |
| 1791 | |
| 1792 | - MVAR to be implemented later. Access to named instances to be |
| 1793 | implemented later as well. |
| 1794 | |
| 1795 | - Misc fixes. |
| 1796 | |
| 1797 | |
Behdad Esfahbod | af596a5 | 2017-01-05 20:24:41 -0800 | [diff] [blame] | 1798 | Overview of changes leading to 1.4.1 |
| 1799 | Thursday, January 5, 2017 |
| 1800 | ==================================== |
| 1801 | |
| 1802 | - Always build and use UCDN for Unicode data by default. |
| 1803 | Reduces dependence on version of Unicode data in glib, |
| 1804 | specially in the Windows bundles we are shipping, which |
| 1805 | have very old glib. |
| 1806 | |
| 1807 | |
Behdad Esfahbod | f339706 | 2017-01-05 01:27:49 -0800 | [diff] [blame] | 1808 | Overview of changes leading to 1.4.0 |
| 1809 | Thursday, January 5, 2017 |
| 1810 | ==================================== |
| 1811 | |
| 1812 | - Merged "OpenType GX" branch which adds core of support for |
| 1813 | OpenType 1.8 Font Variations. To that extent, the relevant |
| 1814 | new API is: |
| 1815 | |
| 1816 | New API: |
| 1817 | hb_font_set_var_coords_normalized() |
| 1818 | |
| 1819 | with supporting API: |
| 1820 | |
| 1821 | New API: |
| 1822 | HB_OT_LAYOUT_NO_VARIATIONS_INDEX |
| 1823 | hb_ot_layout_table_find_feature_variations() |
| 1824 | hb_ot_layout_feature_with_variations_get_lookups() |
| 1825 | hb_shape_plan_create2() |
| 1826 | hb_shape_plan_create_cached2() |
| 1827 | |
| 1828 | Currently variations in GSUB/GPOS/GDEF are fully supported, |
| 1829 | and no other tables are supported. In particular, fvar/avar |
| 1830 | are NOT supported, hence the hb_font_set_var_coords_normalized() |
| 1831 | taking normalized coordinates. API to take design coordinates |
| 1832 | will be added in the future. |
| 1833 | |
| 1834 | HVAR/VVAR/MVAR support will also be added to hb-ot-font in the |
| 1835 | future. |
| 1836 | |
| 1837 | - Fix regression in GDEF glyph class processing. |
| 1838 | - Add decompositions for Chakma, Limbu, and Balinese in USE shaper. |
| 1839 | - Misc fixes. |
| 1840 | |
| 1841 | |
Behdad Esfahbod | b843c6d | 2016-12-05 13:42:28 -0800 | [diff] [blame] | 1842 | Overview of changes leading to 1.3.4 |
| 1843 | Monday, December 5, 2016 |
| 1844 | ==================================== |
| 1845 | |
| 1846 | - Fix vertical glyph origin in hb-ot-font. |
| 1847 | - Implement CBDT/CBLC color font glyph extents in hb-ot-font. |
| 1848 | |
| 1849 | |
Behdad Esfahbod | 966ac7e | 2016-10-26 16:17:15 +0200 | [diff] [blame] | 1850 | Overview of changes leading to 1.3.3 |
| 1851 | Wednesday, September 28, 2016 |
| 1852 | ==================================== |
| 1853 | |
| 1854 | - Implement parsing of OpenType MATH table. |
| 1855 | New API: |
| 1856 | HB_OT_TAG_MATH |
| 1857 | HB_OT_MATH_SCRIPT |
| 1858 | hb_ot_math_constant_t |
| 1859 | hb_ot_math_kern_t |
| 1860 | hb_ot_math_glyph_variant_t |
| 1861 | hb_ot_math_glyph_part_flags_t |
| 1862 | hb_ot_math_glyph_part_t |
| 1863 | hb_ot_math_has_data |
| 1864 | hb_ot_math_get_constant |
| 1865 | hb_ot_math_get_glyph_italics_correction |
| 1866 | hb_ot_math_get_glyph_top_accent_attachment |
| 1867 | hb_ot_math_get_glyph_kerning |
| 1868 | hb_ot_math_is_glyph_extended_shape |
| 1869 | hb_ot_math_get_glyph_variants |
| 1870 | hb_ot_math_get_min_connector_overlap |
| 1871 | hb_ot_math_get_glyph_assembly |
| 1872 | |
| 1873 | |
Behdad Esfahbod | f73a87d | 2016-09-27 13:50:54 +0200 | [diff] [blame] | 1874 | Overview of changes leading to 1.3.2 |
| 1875 | Wednesday, September 27, 2016 |
| 1876 | ==================================== |
| 1877 | |
| 1878 | - Fix build of hb-coretext on older OS X versions. |
| 1879 | |
| 1880 | |
Behdad Esfahbod | d22ab6c | 2016-09-07 14:28:47 -0700 | [diff] [blame] | 1881 | Overview of changes leading to 1.3.1 |
| 1882 | Wednesday, September 7, 2016 |
| 1883 | ==================================== |
| 1884 | |
| 1885 | - Blacklist bad GDEF of more fonts (Padauk). |
| 1886 | - More CoreText backend crash fixes with OS X 10.9.5. |
| 1887 | - Misc fixes. |
| 1888 | |
| 1889 | |
Behdad Esfahbod | a732e00 | 2016-07-21 01:58:00 -0700 | [diff] [blame] | 1890 | Overview of changes leading to 1.3.0 |
| 1891 | Thursday, July 21, 2016 |
| 1892 | ==================================== |
| 1893 | |
| 1894 | - Update to Unicode 9.0.0 |
| 1895 | - Move Javanese from Indic shaper to Universal Shaping Engine. |
| 1896 | - Allow MultipleSubst to delete a glyph (matching Windows engine). |
| 1897 | - Update Universal Shaping Engine to latest draft from Microsoft. |
| 1898 | - DirectWrite backend improvements. Note: this backend is for testing ONLY. |
| 1899 | - CoreText backend improvements with unreachable fonts. |
| 1900 | - Implement symbol fonts (cmap 3.0.0) in hb-ft and hb-ot-font. |
| 1901 | - Blacklist bad GDEF of more fonts (Tahoma & others). |
| 1902 | - Misc fixes. |
| 1903 | |
| 1904 | |
Behdad Esfahbod | a5b7b0d | 2016-05-02 10:44:13 +0200 | [diff] [blame] | 1905 | Overview of changes leading to 1.2.7 |
| 1906 | Monday, May 2, 2016 |
| 1907 | ==================================== |
| 1908 | |
| 1909 | - Blacklist another version of Times New Roman (Bold) Italic from Windows 7. |
| 1910 | - Fix Mongolian Free Variation Selectors shaping with certain fonts. |
| 1911 | - Fix Tibetan shorthand contractions shaping. |
| 1912 | - Improved list of language tag mappings. |
| 1913 | - Unbreak build on Windows CE. |
| 1914 | - Make 'glyf' table loading lazy in hb-ot-font. |
| 1915 | |
| 1916 | |
Behdad Esfahbod | 00ea66f | 2016-04-08 13:51:01 -0700 | [diff] [blame] | 1917 | Overview of changes leading to 1.2.6 |
| 1918 | Friday, April 8, 2016 |
| 1919 | ==================================== |
| 1920 | |
| 1921 | - Blacklist GDEF table of another set of Times New Roman (Bold) Italic. |
| 1922 | - DirectWrite backend improvements. Note: DirectWrite backend is |
| 1923 | exclusively for our internal testing and should NOT be used in any |
| 1924 | production system whatsoever. |
| 1925 | |
| 1926 | |
Behdad Esfahbod | a0331b5 | 2016-04-04 16:25:32 -0700 | [diff] [blame] | 1927 | Overview of changes leading to 1.2.5 |
| 1928 | Monday, April 4, 2016 |
| 1929 | ==================================== |
| 1930 | |
| 1931 | - Fix GDEF mark-filtering-set, which was broken in 1.2.3. |
| 1932 | |
| 1933 | |
Behdad Esfahbod | 0251b0c | 2016-03-17 14:37:11 -0700 | [diff] [blame] | 1934 | Overview of changes leading to 1.2.4 |
| 1935 | Thursday, March 17, 2016 |
| 1936 | ==================================== |
| 1937 | |
| 1938 | - Synthesize GDEF glyph class for any glyph that does not have one in GDEF. |
| 1939 | I really hope we don't discover broken fonts that shape badly with this |
| 1940 | change. |
| 1941 | - Misc build and other minor fixes. |
| 1942 | - API changes: |
| 1943 | - Added HB_NDEBUG. It's fine for production systems to define this to |
| 1944 | disable high-overhead debugging checks. However, I also reduced the |
| 1945 | overhead of those checks, so it's a non-issue right now. You can |
| 1946 | forget it. Just not defining anything at all is fine. |
| 1947 | |
| 1948 | |
Behdad Esfahbod | 75568b0 | 2016-02-25 12:26:26 +0900 | [diff] [blame] | 1949 | Overview of changes leading to 1.2.3 |
| 1950 | Thursday, February 25, 2016 |
| 1951 | ==================================== |
| 1952 | |
| 1953 | - Blacklist GDEF table of certain versions of Times New Roman (Bold) Italic, |
| 1954 | due to bug in glyph class of ASCII double-quote character. This should |
| 1955 | address "regression" introduced in 1.2.0 when we switched mark zeroing |
| 1956 | in most shapers from BY_UNICODE_LATE to BY_GDEF_LATE. |
luz paz | e2e3050 | 2022-01-16 07:00:53 -0500 | [diff] [blame] | 1957 | This fourth release in a week should finally stabilize things... |
Behdad Esfahbod | 75568b0 | 2016-02-25 12:26:26 +0900 | [diff] [blame] | 1958 | |
| 1959 | - hb-ot-font's get_glyph() implementation saw some optimizations. Though, |
| 1960 | might be really hard to measure in real-world situations. |
| 1961 | |
| 1962 | - Also, two rather small API changes: |
| 1963 | |
| 1964 | We now disable some time-consuming internal bookkeeping if built with NDEBUG |
| 1965 | defined. This is a first time that we use NDEBUG to disable debug code. If |
| 1966 | there exist production systems that do NOT want to enable NDEBUG, please let |
| 1967 | me know and I'll add HB_NDEBUG. |
| 1968 | |
| 1969 | Added get_nominal_glyph() and get_variation_glyph() instead of get_glyph() |
| 1970 | |
| 1971 | New API: |
| 1972 | - hb_font_get_nominal_glyph_func_t |
| 1973 | - hb_font_get_variation_glyph_func_t |
| 1974 | - hb_font_funcs_set_nominal_glyph_func() |
| 1975 | - hb_font_funcs_set_variation_glyph_func() |
| 1976 | - hb_font_get_nominal_glyph() |
| 1977 | - hb_font_get_variation_glyph() |
| 1978 | |
| 1979 | Deprecated API: |
| 1980 | - hb_font_get_glyph_func_t |
| 1981 | - hb_font_funcs_set_glyph_func() |
| 1982 | |
| 1983 | Clients that implement their own font-funcs are encouraged to replace |
| 1984 | their get_glyph() implementation with a get_nominal_glyph() and |
| 1985 | get_variation_glyph() pair. The variation version can assume that |
| 1986 | variation_selector argument is not zero. Old (deprecated) functions |
| 1987 | will continue working indefinitely using internal gymnastics; it is |
| 1988 | just more efficient to use the new functions. |
| 1989 | |
| 1990 | |
Behdad Esfahbod | b30a971 | 2016-02-24 17:32:22 +0900 | [diff] [blame] | 1991 | Overview of changes leading to 1.2.2 |
| 1992 | Wednesday, February 24, 2016 |
| 1993 | ==================================== |
| 1994 | |
| 1995 | - Fix regression with mark positioning with fonts that have |
| 1996 | non-zero mark advances. This was introduced in 1.2.0 while |
| 1997 | trying to make mark and cursive attachments to work together. |
| 1998 | I have partially reverted that, so this version is much more |
| 1999 | like what we had before. All clients who updated to 1.2.0 |
| 2000 | should update to this version. |
| 2001 | |
| 2002 | |
Behdad Esfahbod | dabf32a | 2016-02-23 15:38:43 +0900 | [diff] [blame] | 2003 | Overview of changes leading to 1.2.1 |
Behdad Esfahbod | b30a971 | 2016-02-24 17:32:22 +0900 | [diff] [blame] | 2004 | Tuesday, February 23, 2016 |
Behdad Esfahbod | dabf32a | 2016-02-23 15:38:43 +0900 | [diff] [blame] | 2005 | ==================================== |
| 2006 | |
| 2007 | - CoreText: Fix bug with wrong scale if font scale was changed later. |
| 2008 | https://github.com/libass/libass/issues/212 |
| 2009 | - CoreText: Drastically speed up font initialization. |
| 2010 | - CoreText: Fix tiny leak. |
| 2011 | - Group ZWJ/ZWNJ with previous syllable under cluster-level=0. |
ebraminio | 7c6937e | 2017-11-20 14:49:22 -0500 | [diff] [blame] | 2012 | https://github.com/harfbuzz/harfbuzz/issues/217 |
Behdad Esfahbod | dabf32a | 2016-02-23 15:38:43 +0900 | [diff] [blame] | 2013 | - Add test/shaping/README.md about how to add tests to the suite. |
| 2014 | |
| 2015 | |
Behdad Esfahbod | 27847ca | 2016-02-19 15:56:50 +0700 | [diff] [blame] | 2016 | Overview of changes leading to 1.2.0 |
| 2017 | Friday, February 19, 2016 |
| 2018 | ==================================== |
| 2019 | |
| 2020 | - Fix various issues (hangs mostly) in case of memory allocation failure. |
| 2021 | - Change mark zeroing types of most shapers from BY_UNICODE_LATE to |
| 2022 | BY_GDEF_LATE. This seems to be what Uniscribe does. |
| 2023 | - Change mark zeroing of USE shaper from NONE to BY_GDEF_EARLY. That's |
| 2024 | what Windows does. |
| 2025 | - Allow GPOS cursive connection on marks, and fix the interaction with |
| 2026 | mark attachment. This work resulted in some changes to how mark |
| 2027 | attachments work. See: |
ebraminio | 7c6937e | 2017-11-20 14:49:22 -0500 | [diff] [blame] | 2028 | https://github.com/harfbuzz/harfbuzz/issues/211 |
| 2029 | https://github.com/harfbuzz/harfbuzz/commit/86c68c7a2c971efe8e35b1f1bd99401dc8b688d2 |
Behdad Esfahbod | 27847ca | 2016-02-19 15:56:50 +0700 | [diff] [blame] | 2030 | - Graphite2 shaper: improved negative advance handling (eg. Nastaliq). |
| 2031 | - Add nmake-based build system for Windows. |
| 2032 | - Minor speedup. |
| 2033 | - Misc. improvements. |
| 2034 | |
| 2035 | |
Behdad Esfahbod | 1144129 | 2016-01-11 13:16:35 +0000 | [diff] [blame] | 2036 | Overview of changes leading to 1.1.3 |
| 2037 | Monday, January 11, 2016 |
| 2038 | ==================================== |
| 2039 | |
| 2040 | - Ported Indic shaper to Unicode 8.0 data. |
| 2041 | - Universal Shaping Engine fixes. |
| 2042 | - Speed up CoreText shaper when font fallback happens in CoreText. |
| 2043 | - Documentation improvements, thanks to Khaled Hosny. |
| 2044 | - Very rough directwrite shaper for testing, thanks to Ebrahim Byagowi. |
| 2045 | - Misc bug fixes. |
| 2046 | - New API: |
| 2047 | |
| 2048 | * Font extents: |
| 2049 | hb_font_extents_t |
| 2050 | hb_font_get_font_extents_func_t |
| 2051 | hb_font_get_font_h_extents_func_t |
| 2052 | hb_font_get_font_v_extents_func_t |
| 2053 | hb_font_funcs_set_font_h_extents_func |
| 2054 | hb_font_funcs_set_font_v_extents_func |
| 2055 | hb_font_get_h_extents |
| 2056 | hb_font_get_v_extents |
| 2057 | hb_font_get_extents_for_direction |
| 2058 | |
| 2059 | * Buffer message (aka debug): |
| 2060 | hb_buffer_message_func_t |
| 2061 | hb_buffer_set_message_func() |
| 2062 | Actual message protocol to be fleshed out later. |
| 2063 | |
| 2064 | |
Behdad Esfahbod | d44d52b | 2015-11-26 19:35:43 -0500 | [diff] [blame] | 2065 | Overview of changes leading to 1.1.2 |
| 2066 | Wednesday, November 26, 2015 |
| 2067 | ==================================== |
| 2068 | |
| 2069 | - Fix badly-broken fallback shaper that affected terminology. |
ebraminio | 7c6937e | 2017-11-20 14:49:22 -0500 | [diff] [blame] | 2070 | https://github.com/harfbuzz/harfbuzz/issues/187 |
Behdad Esfahbod | d44d52b | 2015-11-26 19:35:43 -0500 | [diff] [blame] | 2071 | - Fix y_scaling in Graphite shaper. |
| 2072 | - API changes: |
| 2073 | * An unset glyph_h_origin() function in font-funcs now (sensibly) |
| 2074 | implies horizontal origin at 0,0. Ie, the nil callback returns |
| 2075 | true instead of false. As such, implementations that have a |
| 2076 | glyph_h_origin() that simply returns true, can remove that function |
| 2077 | with HarfBuzz >= 1.1.2. This results in a tiny speedup. |
| 2078 | |
| 2079 | |
Behdad Esfahbod | b24e93e | 2015-11-24 13:18:20 -0600 | [diff] [blame] | 2080 | Overview of changes leading to 1.1.1 |
| 2081 | Wednesday, November 24, 2015 |
| 2082 | ==================================== |
| 2083 | |
| 2084 | - Build fixes, specially for hb-coretext. |
| 2085 | |
| 2086 | |
Behdad Esfahbod | e1118ae | 2015-11-18 23:40:47 -0800 | [diff] [blame] | 2087 | Overview of changes leading to 1.1.0 |
| 2088 | Wednesday, November 18, 2015 |
| 2089 | ==================================== |
| 2090 | |
| 2091 | - Implement 'stch' stretch feature for Syriac Abbreviation Mark. |
ebraminio | 7c6937e | 2017-11-20 14:49:22 -0500 | [diff] [blame] | 2092 | https://github.com/harfbuzz/harfbuzz/issues/141 |
Behdad Esfahbod | e1118ae | 2015-11-18 23:40:47 -0800 | [diff] [blame] | 2093 | - Disable use of decompose_compatibility() callback. |
| 2094 | - Implement "shaping" of various Unicode space characters, even |
| 2095 | if the font does not support them. |
ebraminio | 7c6937e | 2017-11-20 14:49:22 -0500 | [diff] [blame] | 2096 | https://github.com/harfbuzz/harfbuzz/issues/153 |
Behdad Esfahbod | e1118ae | 2015-11-18 23:40:47 -0800 | [diff] [blame] | 2097 | - If font does not support U+2011 NO-BREAK HYPHEN, fallback to |
| 2098 | U+2010 HYPHEN. |
| 2099 | - Changes resulting from libFuzzer continuous fuzzing: |
| 2100 | * Reject font tables that need more than 8 edits, |
| 2101 | * Bound buffer growth during shaping to 32x, |
| 2102 | * Fix assertions and other issues at OOM / buffer max-growth. |
| 2103 | - Misc fixes and optimizations. |
| 2104 | - API changes: |
| 2105 | * All fonts created with hb_font_create() now inherit from |
| 2106 | (ie. have parent) hb_font_get_empty(). |
| 2107 | |
| 2108 | |
Behdad Esfahbod | 86cadc2 | 2015-10-15 20:25:29 -0300 | [diff] [blame] | 2109 | Overview of changes leading to 1.0.6 |
| 2110 | Thursday, October 15, 2015 |
| 2111 | ==================================== |
| 2112 | |
| 2113 | - Reduce max nesting level in OT lookups from 8 to 6. |
| 2114 | Should not affect any real font as far as I know. |
| 2115 | - Fix memory access issue in ot-font. |
| 2116 | - Revert default load-flags of fonts created using hb_ft_font_create() |
| 2117 | back to FT_LOAD_DEFAULT|FT_LOAD_NO_HINTING. This was changed in |
| 2118 | last release (1.0.5), but caused major issues, so revert. |
ebraminio | 7c6937e | 2017-11-20 14:49:22 -0500 | [diff] [blame] | 2119 | https://github.com/harfbuzz/harfbuzz/issues/143 |
Behdad Esfahbod | 86cadc2 | 2015-10-15 20:25:29 -0300 | [diff] [blame] | 2120 | |
| 2121 | |
Behdad Esfahbod | ab17052 | 2015-10-13 10:55:33 -0300 | [diff] [blame] | 2122 | Overview of changes leading to 1.0.5 |
| 2123 | Tuesday, October 13, 2015 |
| 2124 | ==================================== |
| 2125 | |
| 2126 | - Fix multiple memory access bugs discovered using libFuzzer. |
ebraminio | 7c6937e | 2017-11-20 14:49:22 -0500 | [diff] [blame] | 2127 | https://github.com/harfbuzz/harfbuzz/issues/139 |
Behdad Esfahbod | ab17052 | 2015-10-13 10:55:33 -0300 | [diff] [blame] | 2128 | Everyone should upgrade to this version as soon as possible. |
| 2129 | We now have continuous fuzzing set up, to avoid issues like |
| 2130 | these creeping in again. |
| 2131 | - Misc fixes. |
| 2132 | |
| 2133 | - New API: |
| 2134 | * hb_font_set_parent(). |
| 2135 | * hb_ft_font_[sg]et_load_flags() |
| 2136 | The default flags for fonts created using hb_ft_font_create() |
| 2137 | has changed to default to FT_LOAD_DEFAULT now. Previously it |
| 2138 | was defaulting to FT_LOAD_DFEAULT|FT_LOAD_NO_HINTING. |
| 2139 | |
| 2140 | - API changes: |
| 2141 | * Fonts now default to units-per-EM as their scale, instead of 0. |
| 2142 | * hb_font_create_sub_font() does NOT make parent font immutable |
| 2143 | anymore. hb_font_make_immutable() does. |
| 2144 | |
| 2145 | |
Behdad Esfahbod | 432ffc4 | 2015-09-30 22:51:16 +0100 | [diff] [blame] | 2146 | Overview of changes leading to 1.0.4 |
| 2147 | Wednesday, September 30, 2015 |
| 2148 | ==================================== |
| 2149 | |
| 2150 | - Fix minor out-of-bounds read error. |
| 2151 | |
| 2152 | |
Behdad Esfahbod | 7f54053 | 2015-09-01 17:03:50 +0100 | [diff] [blame] | 2153 | Overview of changes leading to 1.0.3 |
| 2154 | Tuesday, September 1, 2015 |
| 2155 | ==================================== |
| 2156 | |
| 2157 | - Start of user documentation, from Simon Cozens! |
| 2158 | - Implement glyph_extents() for TrueType fonts in hb-ot-font. |
| 2159 | - Improve GPOS cursive attachments with conflicting lookups. |
| 2160 | - More fixes for cluster-level = 1. |
| 2161 | - Uniscribe positioning fix. |
| 2162 | |
| 2163 | |
Behdad Esfahbod | 789b89e | 2015-08-19 13:39:57 +0100 | [diff] [blame] | 2164 | Overview of changes leading to 1.0.2 |
| 2165 | Wednesday, August 19, 2015 |
| 2166 | ==================================== |
| 2167 | |
| 2168 | - Fix shaping with cluster-level > 0. |
| 2169 | - Fix Uniscribe backend font-size scaling. |
| 2170 | - Declare dependencies in harfbuzz.pc. |
| 2171 | FreeType is not declared though, to avoid bugs in pkg-config |
| 2172 | 0.26 with recursive dependencies. |
| 2173 | - Slightly improved debug infrastructure. More to come later. |
| 2174 | - Misc build fixes. |
| 2175 | |
| 2176 | |
Behdad Esfahbod | 9002c27 | 2015-07-27 12:17:54 +0200 | [diff] [blame] | 2177 | Overview of changes leading to 1.0.1 |
| 2178 | Monday, July 27, 2015 |
| 2179 | ==================================== |
| 2180 | |
| 2181 | - Fix out-of-bounds access in USE shaper. |
| 2182 | |
| 2183 | |
Behdad Esfahbod | 2604423 | 2015-07-26 23:39:10 +0200 | [diff] [blame] | 2184 | Overview of changes leading to 1.0.0 |
Behdad Esfahbod | 9002c27 | 2015-07-27 12:17:54 +0200 | [diff] [blame] | 2185 | Sunday, July 26, 2015 |
Behdad Esfahbod | 2604423 | 2015-07-26 23:39:10 +0200 | [diff] [blame] | 2186 | ==================================== |
| 2187 | |
| 2188 | - Implement Universal Shaping Engine: |
| 2189 | https://www.microsoft.com/typography/OpenTypeDev/USE/intro.htm |
| 2190 | http://blogs.windows.com/bloggingwindows/2015/02/23/windows-shapes-the-worlds-languages/ |
| 2191 | - Bump version to 1.0.0. The soname was NOT bumped. |
| 2192 | |
| 2193 | |
Behdad Esfahbod | 2ed6be6 | 2015-07-26 19:29:53 +0200 | [diff] [blame] | 2194 | Overview of changes leading to 0.9.42 |
| 2195 | Thursday, July 26, 2015 |
| 2196 | ===================================== |
Behdad Esfahbod | 376d587 | 2015-07-22 16:51:12 +0100 | [diff] [blame] | 2197 | |
Behdad Esfahbod | 2ed6be6 | 2015-07-26 19:29:53 +0200 | [diff] [blame] | 2198 | - New API to allow for retrieving finer-grained cluster |
| 2199 | mappings if the client desires to handle them. Default |
| 2200 | behavior is unchanged. |
| 2201 | - Fix cluster merging when removing default-ignorables. |
| 2202 | - Update to Unicode 8.0 |
| 2203 | - hb-graphite2 fixes. |
| 2204 | - Misc fixes. |
Behdad Esfahbod | 376d587 | 2015-07-22 16:51:12 +0100 | [diff] [blame] | 2205 | - Removed HB_NO_MERGE_CLUSTERS hack. |
| 2206 | - New API: |
| 2207 | hb_buffer_cluster_level_t enum |
| 2208 | hb_buffer_get_cluster_level() |
| 2209 | hb_buffer_set_cluster_level() |
| 2210 | hb-shape / hb-view --cluster-level |
| 2211 | |
Behdad Esfahbod | 2ed6be6 | 2015-07-26 19:29:53 +0200 | [diff] [blame] | 2212 | |
Behdad Esfahbod | a6446d4 | 2015-06-18 11:14:56 -0700 | [diff] [blame] | 2213 | Overview of changes leading to 0.9.41 |
| 2214 | Thursday, June 18, 2015 |
| 2215 | ===================================== |
| 2216 | |
| 2217 | - Fix hb-coretext with trailing whitespace in right-to-left. |
| 2218 | - New API: hb_buffer_reverse_range(). |
| 2219 | - Allow implementing atomic ops in config.h. |
| 2220 | - Fix hb_language_t in language bindings. |
| 2221 | - Misc fixes. |
| 2222 | |
Behdad Esfahbod | 2ed6be6 | 2015-07-26 19:29:53 +0200 | [diff] [blame] | 2223 | |
Behdad Esfahbod | e3671b8 | 2015-03-20 18:03:02 -0400 | [diff] [blame] | 2224 | Overview of changes leading to 0.9.40 |
| 2225 | Friday, March 20, 2015 |
| 2226 | ===================================== |
| 2227 | |
| 2228 | - Another hb-coretext crasher fix. Ouch! |
| 2229 | - Happy Norouz! |
| 2230 | |
| 2231 | |
Behdad Esfahbod | 02a04e6 | 2015-03-04 12:32:03 -0800 | [diff] [blame] | 2232 | Overview of changes leading to 0.9.39 |
| 2233 | Wednesday, March 4, 2015 |
| 2234 | ===================================== |
| 2235 | |
| 2236 | - Critical hb-coretext fixes. |
| 2237 | - Optimizations and refactoring; no functional change |
| 2238 | expected. |
| 2239 | - Misc build fixes. |
| 2240 | |
| 2241 | |
Behdad Esfahbod | 28f5e0b | 2015-01-23 12:45:35 -0800 | [diff] [blame] | 2242 | Overview of changes leading to 0.9.38 |
| 2243 | Friday, January 23, 2015 |
| 2244 | ===================================== |
| 2245 | |
| 2246 | - Fix minor out-of-bounds access in Indic shaper. |
| 2247 | - Change New Tai Lue shaping engine from South-East Asian to default, |
| 2248 | reflecting change in Unicode encoding model. |
| 2249 | - Add hb-shape --font-size. Can take up to two numbers for separate |
| 2250 | x / y size. |
| 2251 | - Fix CoreText and FreeType scale issues with negative scales. |
| 2252 | - Reject blobs larger than 2GB. This might break some icu-le-hb clients |
| 2253 | that need security fixes. See: |
| 2254 | http://www.icu-project.org/trac/ticket/11450 |
| 2255 | - Avoid accessing font tables during face destruction, in casce rogue |
| 2256 | clients released face data already. |
| 2257 | - Fix up gobject-introspection a bit. Python bindings kinda working. |
| 2258 | See README.python. |
| 2259 | - Misc fixes. |
| 2260 | - API additions: |
| 2261 | hb_ft_face_create_referenced() |
| 2262 | hb_ft_font_create_referenced() |
| 2263 | |
| 2264 | |
Behdad Esfahbod | 66e3740 | 2014-12-17 12:09:17 -0800 | [diff] [blame] | 2265 | Overview of changes leading to 0.9.37 |
| 2266 | Wednesday, December 17, 2014 |
| 2267 | ===================================== |
| 2268 | |
| 2269 | - Fix out-of-bounds access in Context lookup format 3. |
| 2270 | - Indic: Allow ZWJ/ZWNJ before syllable modifiers. |
| 2271 | |
| 2272 | |
Behdad Esfahbod | c0e95ab | 2014-11-20 14:42:24 -0800 | [diff] [blame] | 2273 | Overview of changes leading to 0.9.36 |
| 2274 | Thursday, November 20, 2014 |
| 2275 | ===================================== |
| 2276 | |
| 2277 | - First time that three months went by without a release since |
| 2278 | 0.9.2 was released on August 10, 2012! |
| 2279 | - Fix performance bug in hb_ot_collect_glyphs(): |
| 2280 | https://bugzilla.mozilla.org/show_bug.cgi?id=1090869 |
| 2281 | - Add basic vertical-text support to hb-ot-font. |
| 2282 | - Misc build fixes. |
| 2283 | |
| 2284 | |
Behdad Esfahbod | cd5a114 | 2014-08-13 12:39:34 -0400 | [diff] [blame] | 2285 | Overview of changes leading to 0.9.35 |
| 2286 | Saturday, August 13, 2014 |
| 2287 | ===================================== |
| 2288 | |
| 2289 | - Fix major shape-plan caching bug when more than one shaper were |
| 2290 | provided to hb_shape_full() (as exercised by XeTeX). |
| 2291 | http://www.mail-archive.com/debian-bugs-dist@lists.debian.org/msg1246370.html |
| 2292 | - Fix Arabic fallback shaping regression. This was broken in 0.9.32. |
| 2293 | - Major hb-coretext fixes. That backend is complete now, including |
| 2294 | respecing buffer direction and language, down to vertical writing. |
| 2295 | - Build fixes for Windows CE. Should build fine now. |
| 2296 | - Misc fixes: |
| 2297 | Use atexit() only if it's safe to call from shared library |
| 2298 | https://bugs.freedesktop.org/show_bug.cgi?id=82246 |
| 2299 | Mandaic had errors in its Unicode Joining_Type |
| 2300 | https://bugs.freedesktop.org/show_bug.cgi?id=82306 |
| 2301 | - API changes: |
| 2302 | |
| 2303 | * hb_buffer_clear_contents() does not reset buffer flags now. |
| 2304 | |
| 2305 | After 763e5466c0a03a7c27020e1e2598e488612529a7, one doesn't |
| 2306 | need to set flags for different pieces of text. The flags now |
| 2307 | are something the client sets up once, depending on how it |
| 2308 | actually uses the buffer. As such, don't clear it in |
| 2309 | clear_contents(). |
| 2310 | |
| 2311 | I don't expect any changes to be needed to any existing client. |
| 2312 | |
| 2313 | |
Behdad Esfahbod | 91c2c0f | 2014-08-02 19:24:55 -0400 | [diff] [blame] | 2314 | Overview of changes leading to 0.9.34 |
| 2315 | Saturday, August 2, 2014 |
| 2316 | ===================================== |
| 2317 | |
| 2318 | - hb_feature_from_string() now accepts CSS font-feature-settings format. |
| 2319 | - As a result, hb-shape / hb-view --features also accept CSS-style strings. |
| 2320 | Eg, "'liga' off" is accepted now. |
| 2321 | - Add old-spec Myanmar shaper: |
| 2322 | https://bugs.freedesktop.org/show_bug.cgi?id=81775 |
| 2323 | - Don't apply 'calt' in Hangul shaper. |
| 2324 | - Fix mark advance zeroing for Hebrew shaper: |
| 2325 | https://bugs.freedesktop.org/show_bug.cgi?id=76767 |
| 2326 | - Implement Windows-1256 custom Arabic shaping. Only built on Windows, |
| 2327 | and requires help from get_glyph(). Used by Firefox. |
| 2328 | https://bugzilla.mozilla.org/show_bug.cgi?id=1045139 |
| 2329 | - Disable 'liga' in vertical text. |
| 2330 | - Build fixes. |
| 2331 | - API changes: |
| 2332 | |
| 2333 | * Make HB_BUFFER_FLAG_BOT/EOT easier to use. |
| 2334 | |
| 2335 | Previously, we expected users to provide BOT/EOT flags when the |
| 2336 | text *segment* was at paragraph boundaries. This meant that for |
| 2337 | clients that provide full paragraph to HarfBuzz (eg. Pango), they |
| 2338 | had code like this: |
| 2339 | |
| 2340 | hb_buffer_set_flags (hb_buffer, |
| 2341 | (item_offset == 0 ? HB_BUFFER_FLAG_BOT : 0) | |
| 2342 | (item_offset + item_length == paragraph_length ? |
| 2343 | HB_BUFFER_FLAG_EOT : 0)); |
| 2344 | |
| 2345 | hb_buffer_add_utf8 (hb_buffer, |
| 2346 | paragraph_text, paragraph_length, |
| 2347 | item_offset, item_length); |
| 2348 | |
| 2349 | After this change such clients can simply say: |
| 2350 | |
| 2351 | hb_buffer_set_flags (hb_buffer, |
| 2352 | HB_BUFFER_FLAG_BOT | HB_BUFFER_FLAG_EOT); |
| 2353 | |
| 2354 | hb_buffer_add_utf8 (hb_buffer, |
| 2355 | paragraph_text, paragraph_length, |
| 2356 | item_offset, item_length); |
| 2357 | |
| 2358 | Ie, HarfBuzz itself checks whether the segment is at the beginning/end |
| 2359 | of the paragraph. Clients that only pass item-at-a-time to HarfBuzz |
| 2360 | continue not setting any flags whatsoever. |
| 2361 | |
| 2362 | Another way to put it is: if there's pre-context text in the buffer, |
| 2363 | HarfBuzz ignores the BOT flag. If there's post-context, it ignores |
| 2364 | EOT flag. |
| 2365 | |
| 2366 | |
Behdad Esfahbod | 8c1bdb4 | 2014-07-22 17:56:43 -0400 | [diff] [blame] | 2367 | Overview of changes leading to 0.9.33 |
| 2368 | Tuesday, July 22, 2014 |
| 2369 | ===================================== |
| 2370 | |
| 2371 | - Turn off ARabic 'cswh' feature that was accidentally turned on. |
| 2372 | - Add HB_TAG_MAX_SIGNED. |
| 2373 | - Make hb_face_make_immutable() really make face immutable! |
| 2374 | - Windows build fixes. |
| 2375 | |
| 2376 | |
Behdad Esfahbod | 66f3091 | 2014-07-17 16:05:47 -0400 | [diff] [blame] | 2377 | Overview of changes leading to 0.9.32 |
| 2378 | Thursday, July 17, 2014 |
| 2379 | ===================================== |
| 2380 | |
| 2381 | - Apply Arabic shaping features in spec order exactly. |
| 2382 | - Another fix for Mongolian free variation selectors. |
| 2383 | - For non-Arabic scripts in Arabic shaper apply 'rlig' and 'calt' |
| 2384 | together. |
| 2385 | - Minor adjustment to U+FFFD logic. |
| 2386 | - Fix hb-coretext build. |
| 2387 | |
| 2388 | |
Behdad Esfahbod | a18897f | 2014-07-16 16:02:15 -0400 | [diff] [blame] | 2389 | Overview of changes leading to 0.9.31 |
| 2390 | Wednesday, July 16, 2014 |
| 2391 | ===================================== |
| 2392 | |
| 2393 | - Only accept valid UTF-8/16/32; we missed many cases before. |
| 2394 | - Better shaping of invalid UTF-8/16/32. Falls back to |
| 2395 | U+FFFD REPLACEMENT CHARACTER now. |
| 2396 | - With all changes in this release, the buffer will contain fully |
| 2397 | valid Unicode after hb_buffer_add_utf8/16/32 no matter how |
Unknown | 97145df | 2017-11-03 09:05:00 -0400 | [diff] [blame] | 2398 | broken the input is. This can be overridden though. See below. |
Behdad Esfahbod | a18897f | 2014-07-16 16:02:15 -0400 | [diff] [blame] | 2399 | - Fix Mongolian Variation Selectors for fonts without GDEF. |
| 2400 | - Fix minor invalid buffer access. |
| 2401 | - Accept zh-Hant and zh-Hans language tags. hb_ot_tag_to_language() |
| 2402 | now uses these instead of private tags. |
| 2403 | - Build fixes. |
| 2404 | - New API: |
| 2405 | * hb_buffer_add_codepoints(). This does what hb_buffer_add_utf32() |
| 2406 | used to do, ie. no validity check on the input at all. add_utf32 |
| 2407 | now replaces invalid Unicode codepoints with the replacement |
| 2408 | character (see below). |
| 2409 | * hb_buffer_set_replacement_codepoint() |
| 2410 | * hb_buffer_get_replacement_codepoint() |
| 2411 | Previously, in hb_buffer_add_utf8 and hb_buffer_add_utf16, when |
| 2412 | we detected broken input, we replaced that with (hb_codepoint_t)-1. |
| 2413 | This has changed to use U+FFFD now, but can be changed using these |
| 2414 | new API. |
| 2415 | |
| 2416 | |
Behdad Esfahbod | ea00137 | 2014-07-09 17:28:43 -0400 | [diff] [blame] | 2417 | Overview of changes leading to 0.9.30 |
| 2418 | Wednesday, July 9, 2014 |
| 2419 | ===================================== |
Behdad Esfahbod | a18897f | 2014-07-16 16:02:15 -0400 | [diff] [blame] | 2420 | |
Behdad Esfahbod | ea00137 | 2014-07-09 17:28:43 -0400 | [diff] [blame] | 2421 | - Update to Unicode 7.0.0: |
| 2422 | * New scripts Manichaean and Psalter Pahlavi are shaped using |
| 2423 | Arabic shaper. |
| 2424 | * All the other new scripts to through the generic shaper for |
| 2425 | now. |
| 2426 | - Minor Indic improvements. |
| 2427 | - Fix graphite2 backend cluster mapping [crasher!] |
| 2428 | - API changes: |
| 2429 | * New HB_SCRIPT_* values for Unicode 7.0 scripts. |
| 2430 | * New function hb_ot_layout_language_get_required_feature(). |
| 2431 | - Build fixes. |
| 2432 | |
| 2433 | |
Behdad Esfahbod | 5875ad9 | 2014-05-29 15:48:16 -0400 | [diff] [blame] | 2434 | Overview of changes leading to 0.9.29 |
| 2435 | Thursday, May 29, 2014 |
| 2436 | ===================================== |
| 2437 | |
| 2438 | - Implement cmap in hb-ot-font.h. No variation-selectors yet. |
| 2439 | - Myanmar: Allow MedialYa+Asat. |
| 2440 | - Various Indic fixes: |
| 2441 | * Support most characters in Extended Devanagary and Vedic |
| 2442 | Unicode blocks. |
| 2443 | * Allow digits and a some punctuation as consonant placeholders. |
| 2444 | - Build fixes. |
| 2445 | |
Behdad Esfahbod | ea00137 | 2014-07-09 17:28:43 -0400 | [diff] [blame] | 2446 | |
Behdad Esfahbod | 79ecdc3 | 2014-04-28 14:24:23 -0700 | [diff] [blame] | 2447 | Overview of changes leading to 0.9.28 |
| 2448 | Monday, April 28, 2014 |
| 2449 | ===================================== |
| 2450 | |
| 2451 | - Unbreak old-spec Indic shaping. (bug 76705) |
| 2452 | - Fix shaping of U+17DD and U+0FC6. |
| 2453 | - Add HB_NO_MERGE_CLUSTERS build option. NOT to be enabled by default |
| 2454 | for shipping libraries. It's an option for further experimentation |
| 2455 | right now. When we are sure how to do it properly, we will add |
| 2456 | public run-time API for the functionality. |
| 2457 | - Build fixes. |
| 2458 | |
| 2459 | |
Dominik Röttsches | ba8c9d9 | 2014-03-18 14:39:03 +0200 | [diff] [blame] | 2460 | Overview of changes leading to 0.9.27 |
| 2461 | Tuesday, March 18, 2014 |
| 2462 | ===================================== |
| 2463 | |
| 2464 | - Don't use "register" storage class specifier |
| 2465 | - Wrap definition of free_langs() with HAVE_ATEXIT |
| 2466 | - Add coretext_aat shaper and hb_coretext_face_create() constructor |
| 2467 | - If HAVE_ICU_BUILTIN is defined, use hb-icu Unicode callbacks |
| 2468 | - Add Myanmar test case from OpenType Myanmar spec |
| 2469 | - Only do fallback Hebrew composition if no GPOS 'mark' available |
| 2470 | - Allow bootstrapping without gtk-doc |
| 2471 | - Use AM_MISSING_PROG for ragel and git |
| 2472 | - Typo in ucdn's Makefile.am |
| 2473 | - Improve MemoryBarrier() implementation |
| 2474 | |
| 2475 | |
Behdad Esfahbod | 189bf23 | 2014-01-30 15:14:58 -0500 | [diff] [blame] | 2476 | Overview of changes leading to 0.9.26 |
| 2477 | Thursday, January 30, 2014 |
| 2478 | ===================================== |
| 2479 | |
| 2480 | - Misc fixes. |
| 2481 | - Fix application of 'rtlm' feature. |
| 2482 | - Automatically apply frac/numr/dnom around U+2044 FRACTION SLASH. |
| 2483 | - New header: hb-ot-shape.h |
| 2484 | - Uniscribe: fix scratch-buffer accounting. |
| 2485 | - Reorder Tai Tham SAKOT to after tone-marks. |
| 2486 | - Add Hangul shaper. |
| 2487 | - New files: |
| 2488 | hb-ot-shape-complex-hangul.cc |
| 2489 | hb-ot-shape-complex-hebrew.cc |
| 2490 | hb-ot-shape-complex-tibetan.cc |
| 2491 | - Disable 'cswh' feature in Arabic shaper. |
| 2492 | - Coretext: better handle surrogate pairs. |
| 2493 | - Add HB_TAG_MAX and _HB_SCRIPT_MAX_VALUE. |
| 2494 | |
| 2495 | |
Behdad Esfahbod | 860fc9a | 2013-12-04 20:06:59 -0500 | [diff] [blame] | 2496 | Overview of changes leading to 0.9.25 |
| 2497 | Wednesday, December 4, 2013 |
| 2498 | ===================================== |
| 2499 | |
| 2500 | - Myanmar shaper improvements. |
| 2501 | - Avoid font fallback in CoreText backend. |
| 2502 | - Additional OpenType language tag mappiongs. |
| 2503 | - More aggressive shape-plan caching. |
| 2504 | - Build with / require automake 1.13. |
| 2505 | - Build with libtool 2.4.2.418 alpha to support ppc64le. |
| 2506 | |
| 2507 | |
Behdad Esfahbod | 6300694 | 2013-11-13 14:54:07 -0500 | [diff] [blame] | 2508 | Overview of changes leading to 0.9.24 |
| 2509 | Tuesday, November 13, 2013 |
| 2510 | ===================================== |
| 2511 | |
| 2512 | - Misc compiler warning fixes with clang. |
| 2513 | - No functional changes. |
| 2514 | |
| 2515 | |
Behdad Esfahbod | dce79c2 | 2013-10-28 20:26:40 +0100 | [diff] [blame] | 2516 | Overview of changes leading to 0.9.23 |
| 2517 | Monday, October 28, 2013 |
| 2518 | ===================================== |
| 2519 | |
| 2520 | - "Udupi HarfBuzz Hackfest", Paris, October 14..18 2013. |
| 2521 | - Fix (Chain)Context recursion with non-monotone lookup positions. |
| 2522 | - Misc Indic bug fixes. |
| 2523 | - New Javanese / Buginese shaping, similar to Windows 8.1. |
| 2524 | |
| 2525 | |
Behdad Esfahbod | e152d1a | 2013-10-03 15:09:37 -0400 | [diff] [blame] | 2526 | Overview of changes leading to 0.9.22 |
| 2527 | Thursday, October 3, 2013 |
| 2528 | ===================================== |
| 2529 | |
| 2530 | - Fix use-after-end-of-scope in hb_language_from_string(). |
| 2531 | - Fix hiding of default_ignorables if font doesn't have space glyph. |
| 2532 | - Protect against out-of-range lookup indices. |
| 2533 | |
| 2534 | - API Changes: |
| 2535 | |
| 2536 | * Added hb_ot_layout_table_get_lookup_count() |
| 2537 | |
| 2538 | |
Behdad Esfahbod | b61f97d | 2013-09-16 22:07:22 -0400 | [diff] [blame] | 2539 | Overview of changes leading to 0.9.21 |
| 2540 | Monday, September 16, 2013 |
| 2541 | ===================================== |
| 2542 | |
| 2543 | - Rename gobject-introspection library name from harfbuzz to HarfBuzz. |
| 2544 | - Remove (long disabled) hb-old and hb-icu-le test shapers. |
| 2545 | - Misc gtk-doc and gobject-introspection annotations. |
| 2546 | - Misc fixes. |
| 2547 | - API changes: |
| 2548 | |
| 2549 | * Add HB_SET_VALUE_INVALID |
| 2550 | |
Behdad Esfahbod | f730b5d | 2013-08-29 15:53:33 -0400 | [diff] [blame] | 2551 | Overview of changes leading to 0.9.20 |
| 2552 | Thursday, August 29, 2013 |
| 2553 | ===================================== |
| 2554 | |
| 2555 | General: |
| 2556 | - Misc substitute_closure() fixes. |
| 2557 | - Build fixes. |
| 2558 | |
| 2559 | Documentation: |
| 2560 | - gtk-doc boilerplate integrated. Docs are built now, but |
| 2561 | contain no contents. By next release hopefully we have |
| 2562 | some content in. Enable using --enable-gtk-doc. |
| 2563 | |
| 2564 | GObject and Introspection: |
| 2565 | - Added harfbuzz-gobject library (hb-gobject.h) that has type |
| 2566 | bindings for all HarfBuzz objects and enums. Enable using |
| 2567 | --with-gobject. |
| 2568 | - Added gobject-introspection boilerplate. Nothing useful |
| 2569 | right now. Work in progress. Gets enabled automatically if |
| 2570 | --with-gobject is used. Override with --disable-introspection. |
| 2571 | |
| 2572 | OpenType shaper: |
| 2573 | - Apply 'mark' in Myanmar shaper. |
| 2574 | - Don't apply 'dlig' by default. |
| 2575 | |
| 2576 | Uniscribe shaper: |
| 2577 | - Support user features. |
| 2578 | - Fix loading of fonts that are also installed on the system. |
| 2579 | - Fix shaping of Arabic Presentation Forms. |
| 2580 | - Fix build with wide chars. |
| 2581 | |
| 2582 | CoreText shaper: |
| 2583 | - Support user features. |
| 2584 | |
| 2585 | Source changes: |
| 2586 | - hb_face_t code moved to hb-face.h / hb-face.cc. |
| 2587 | - Added hb-deprecated.h. |
| 2588 | |
| 2589 | API changes: |
| 2590 | - Added HB_DISABLE_DEPRECATED. |
| 2591 | - Deprecated HB_SCRIPT_CANADIAN_ABORIGINAL; replaced by |
| 2592 | HB_SCRIPT_CANADIAN_SYLLABICS. |
| 2593 | - Deprecated HB_BUFFER_FLAGS_DEFAULT; replaced by |
| 2594 | HB_BUFFER_FLAG_DEFAULT. |
| 2595 | - Deprecated HB_BUFFER_SERIALIZE_FLAGS_DEFAULT; replaced by |
| 2596 | HB_BUFFER_SERIALIZE_FLAG_DEFAULT. |
| 2597 | |
| 2598 | |
Behdad Esfahbod | 2b78d67 | 2013-07-16 16:06:27 -0400 | [diff] [blame] | 2599 | Overview of changes leading to 0.9.19 |
| 2600 | Tuesday, July 16, 2013 |
| 2601 | ===================================== |
| 2602 | |
| 2603 | - Build fixes. |
| 2604 | - Better handling of multiple variation selectors in a row. |
| 2605 | - Pass on variation selector to GSUB if not consumed by cmap. |
| 2606 | - Fix undefined memory access. |
| 2607 | - Add Javanese config to Indic shaper. |
| 2608 | - Misc bug fixes. |
| 2609 | |
Behdad Esfahbod | 4014aa4 | 2013-05-28 17:28:59 -0400 | [diff] [blame] | 2610 | Overview of changes leading to 0.9.18 |
| 2611 | Tuesday, May 28, 2013 |
| 2612 | ===================================== |
| 2613 | |
| 2614 | New build system: |
| 2615 | |
| 2616 | - All unneeded code is all disabled by default, |
| 2617 | |
| 2618 | - Uniscribe and CoreText shapers can be enabled with their --with options, |
| 2619 | |
| 2620 | - icu_le and old shapers cannot be enabled for now, |
| 2621 | |
| 2622 | - glib, freetype, and cairo will be detected automatically. |
| 2623 | They can be force on/off'ed with their --with options, |
| 2624 | |
| 2625 | - icu and graphite2 are default off, can be enabled with their --with |
| 2626 | options, |
| 2627 | |
| 2628 | Moreover, ICU support is now build into a separate library: |
| 2629 | libharfbuzz-icu.so, and a new harfbuzz-icu.pc is shipped for it. |
| 2630 | Distros can enable ICU now without every application on earth |
| 2631 | getting linked to via libharfbuzz.so. |
| 2632 | |
| 2633 | For distros I recommend that they make sure they are building --with-glib |
| 2634 | --with-freetype --with-cairo, --with-icu, and optionally --with-graphite2; |
| 2635 | And package harfbuzz and harfbuzz-icu separately. |
| 2636 | |
| 2637 | |
Behdad Esfahbod | f1b02f4 | 2013-05-20 09:23:58 -0400 | [diff] [blame] | 2638 | Overview of changes leading to 0.9.17 |
| 2639 | Monday, May 20, 2013 |
| 2640 | ===================================== |
| 2641 | |
| 2642 | - Build fixes. |
| 2643 | - Fix bug in hb_set_get_min(). |
| 2644 | - Fix regression with Arabic mark positioning / width-zeroing. |
| 2645 | |
Behdad Esfahbod | a408d23 | 2013-04-19 16:32:06 -0400 | [diff] [blame] | 2646 | Overview of changes leading to 0.9.16 |
| 2647 | Friday, April 19, 2013 |
| 2648 | ===================================== |
| 2649 | |
| 2650 | - Major speedup in OpenType lookup processing. With the Amiri |
| 2651 | Arabic font, this release is over 3x faster than previous |
| 2652 | release. All scripts / languages should see this speedup. |
| 2653 | |
| 2654 | - New --num-iterations option for hb-shape / hb-view; useful for |
| 2655 | profiling. |
| 2656 | |
Behdad Esfahbod | 22e4745 | 2013-04-05 18:02:43 -0400 | [diff] [blame] | 2657 | Overview of changes leading to 0.9.15 |
Behdad Esfahbod | a408d23 | 2013-04-19 16:32:06 -0400 | [diff] [blame] | 2658 | Friday, April 05, 2013 |
Behdad Esfahbod | 22e4745 | 2013-04-05 18:02:43 -0400 | [diff] [blame] | 2659 | ===================================== |
| 2660 | |
| 2661 | - Build fixes. |
| 2662 | - Fix crasher in graphite2 shaper. |
| 2663 | - Fix Arabic mark width zeroing regression. |
| 2664 | - Don't compose Hangul jamo into Unicode syllables. |
| 2665 | |
| 2666 | |
Behdad Esfahbod | f872a17 | 2013-03-21 13:38:06 -0400 | [diff] [blame] | 2667 | Overview of changes leading to 0.9.14 |
| 2668 | Thursday, March 21, 2013 |
| 2669 | ===================================== |
| 2670 | |
| 2671 | - Build fixes. |
| 2672 | - Fix time-consuming sanitize with malicious fonts. |
| 2673 | - Implement hb_buffer_deserialize_glyphs() for both json and text. |
| 2674 | - Do not ignore Hangul filler characters. |
| 2675 | - Indic fixes: |
| 2676 | * Fix Malayalam pre-base reordering interaction with post-forms. |
| 2677 | * Further adjust ZWJ handling. Should fix known regressions from |
| 2678 | 0.9.13. |
| 2679 | |
| 2680 | |
Behdad Esfahbod | 05686b5 | 2013-02-25 18:19:20 -0500 | [diff] [blame] | 2681 | Overview of changes leading to 0.9.13 |
| 2682 | Thursday, February 25, 2013 |
| 2683 | ===================================== |
| 2684 | |
| 2685 | - Build fixes. |
| 2686 | - Ngapi HarfBuzz Hackfest in London (February 2013): |
| 2687 | * Fixed all known Indic bugs, |
| 2688 | * New Win8-style Myanmar shaper, |
| 2689 | * New South-East Asian shaper for Tai Tham, Cham, and New Tai Lue, |
| 2690 | * Smartly ignore Default_Ignorable characters (joiners, etc) wheb |
| 2691 | matching GSUB/GPOS lookups, |
| 2692 | * Fix 'Phags-Pa U+A872 shaping, |
| 2693 | * Fix partial disabling of default-on features, |
| 2694 | * Allow disabling of TrueType kerning. |
| 2695 | - Fix possible crasher with broken fonts with overlapping tables. |
| 2696 | - Removed generated files from git again. So, one needs ragel to |
| 2697 | bootstrap from the git tree. |
| 2698 | |
| 2699 | API changes: |
| 2700 | - hb_shape() and related APIs now abort if buffer direction is |
| 2701 | HB_DIRECTION_INVALID. Previously, hb_shape() was calling |
| 2702 | hb_buffer_guess_segment_properties() on the buffer before |
| 2703 | shaping. The heuristics in that function are fragile. If the |
| 2704 | user really wants the old behvaior, they can call that function |
| 2705 | right before calling hb_shape() to get the old behavior. |
| 2706 | - hb_blob_create_sub_blob() always creates sub-blob with |
| 2707 | HB_MEMORY_MODE_READONLY. See comments for the reason. |
| 2708 | |
| 2709 | |
Behdad Esfahbod | 09b5393 | 2013-01-18 17:10:47 -0600 | [diff] [blame] | 2710 | Overview of changes leading to 0.9.12 |
| 2711 | Thursday, January 18, 2013 |
| 2712 | ===================================== |
| 2713 | |
| 2714 | - Build fixes for Sun compiler. |
| 2715 | - Minor bug fix. |
| 2716 | |
Behdad Esfahbod | cf81fb3 | 2013-01-10 09:06:34 -0600 | [diff] [blame] | 2717 | Overview of changes leading to 0.9.11 |
| 2718 | Thursday, January 10, 2013 |
| 2719 | ===================================== |
| 2720 | |
| 2721 | - Build fixes. |
| 2722 | - Fix GPOS mark attachment with null Anchor offsets. |
| 2723 | - [Indic] Fix old-spec reordering of viramas if sequence ends in one. |
| 2724 | - Fix multi-threaded shaper data creation crash. |
| 2725 | - Add atomic ops for Solaris. |
| 2726 | |
| 2727 | API changes: |
| 2728 | - Rename hb_buffer_clear() to hb_buffer_clear_contents(). |
| 2729 | |
| 2730 | |
Behdad Esfahbod | 34e6c3e | 2013-01-03 00:14:24 -0600 | [diff] [blame] | 2731 | Overview of changes leading to 0.9.10 |
| 2732 | Thursday, January 3, 2013 |
| 2733 | ===================================== |
| 2734 | |
| 2735 | - [Indic] Fixed rendering of Malayalam dot-reph |
| 2736 | - Updated OT language tags. |
| 2737 | - Updated graphite2 backend. |
| 2738 | - Improved hb_ot_layout_get_size_params() logic. |
| 2739 | - Improve hb-shape/hb-view help output. |
| 2740 | - Fixed hb-set.h implementation to not crash. |
| 2741 | - Fixed various issues with hb_ot_layout_collect_lookups(). |
| 2742 | - Various build fixes. |
| 2743 | |
| 2744 | New API: |
| 2745 | |
| 2746 | hb_graphite2_face_get_gr_face() |
| 2747 | hb_graphite2_font_get_gr_font() |
| 2748 | hb_coretext_face_get_cg_font() |
| 2749 | |
| 2750 | Modified API: |
| 2751 | |
| 2752 | hb_ot_layout_get_size_params() |
| 2753 | |
| 2754 | |
Behdad Esfahbod | c6408a1 | 2012-12-05 17:36:52 -0500 | [diff] [blame] | 2755 | Overview of changes leading to 0.9.9 |
| 2756 | Wednesday, December 5, 2012 |
| 2757 | ==================================== |
| 2758 | |
| 2759 | - Fix build on Windows. |
| 2760 | - Minor improvements. |
| 2761 | |
| 2762 | |
Behdad Esfahbod | a52f51b | 2012-12-04 15:43:38 -0500 | [diff] [blame] | 2763 | Overview of changes leading to 0.9.8 |
| 2764 | Tuesday, December 4, 2012 |
| 2765 | ==================================== |
| 2766 | |
| 2767 | |
| 2768 | - Actually implement hb_shape_plan_get_shaper (). |
| 2769 | - Make UCDB data tables const. |
| 2770 | - Lots of internal refactoring in OTLayout tables. |
| 2771 | - Flesh out hb_ot_layout_lookup_collect_glyphs(). |
| 2772 | |
| 2773 | New API: |
| 2774 | |
| 2775 | hb_ot_layout_collect_lookups() |
| 2776 | hb_ot_layout_get_size_params() |
| 2777 | |
| 2778 | |
Behdad Esfahbod | 4c89635 | 2012-11-21 01:20:56 -0500 | [diff] [blame] | 2779 | Overview of changes leading to 0.9.7 |
| 2780 | Sunday, November 21, 2012 |
| 2781 | ==================================== |
| 2782 | |
| 2783 | |
| 2784 | HarfBuzz "All-You-Can-Eat-Sushi" (aka Vancouver) Hackfest and follow-on fixes. |
| 2785 | |
| 2786 | - Fix Arabic contextual joining using pre-context text. |
| 2787 | - Fix Sinhala "split matra" mess. |
| 2788 | - Fix Khmer shaping with broken fonts. |
| 2789 | - Implement Thai "PUA" shaping for old fonts. |
| 2790 | - Do NOT route Kharoshthi script through the Indic shaper. |
| 2791 | - Disable fallback positioning for Indic and Thai shapers. |
| 2792 | - Misc fixes. |
| 2793 | |
| 2794 | |
| 2795 | hb-shape / hb-view changes: |
| 2796 | |
| 2797 | - Add --text-before and --text-after |
| 2798 | - Add --bot / --eot / --preserve-default-ignorables |
| 2799 | - hb-shape --output-format=json |
| 2800 | |
| 2801 | |
| 2802 | New API: |
| 2803 | |
| 2804 | hb_buffer_clear() |
| 2805 | |
| 2806 | hb_buffer_flags_t |
| 2807 | |
| 2808 | HB_BUFFER_FLAGS_DEFAULT |
| 2809 | HB_BUFFER_FLAG_BOT |
| 2810 | HB_BUFFER_FLAG_EOT |
| 2811 | HB_BUFFER_FLAG_PRESERVE_DEFAULT_IGNORABLES |
| 2812 | |
| 2813 | hb_buffer_set_flags() |
| 2814 | hb_buffer_get_flags() |
| 2815 | |
| 2816 | HB_BUFFER_SERIALIZE_FLAGS |
| 2817 | hb_buffer_serialize_glyphs() |
| 2818 | hb_buffer_deserialize_glyphs() |
| 2819 | hb_buffer_serialize_list_formats() |
| 2820 | |
| 2821 | hb_set_add_range() |
| 2822 | hb_set_del_range() |
| 2823 | hb_set_get_population() |
| 2824 | hb_set_next_range() |
| 2825 | |
| 2826 | hb_face_[sg]et_glyph_count() |
| 2827 | |
| 2828 | hb_segment_properties_t |
| 2829 | HB_SEGMENT_PROPERTIES_DEFAULT |
| 2830 | hb_segment_properties_equal() |
| 2831 | hb_segment_properties_hash() |
| 2832 | |
| 2833 | hb_buffer_set_segment_properties() |
| 2834 | hb_buffer_get_segment_properties() |
| 2835 | |
| 2836 | hb_ot_layout_glyph_class_t |
| 2837 | hb_ot_layout_get_glyph_class() |
| 2838 | hb_ot_layout_get_glyphs_in_class() |
| 2839 | |
| 2840 | hb_shape_plan_t |
| 2841 | hb_shape_plan_create() |
| 2842 | hb_shape_plan_create_cached() |
| 2843 | hb_shape_plan_get_empty() |
| 2844 | hb_shape_plan_reference() |
| 2845 | hb_shape_plan_destroy() |
| 2846 | hb_shape_plan_set_user_data() |
| 2847 | hb_shape_plan_get_user_data() |
| 2848 | hb_shape_plan_execute() |
| 2849 | hb_shape_plan_get_shaper() |
| 2850 | |
| 2851 | hb_ot_shape_plan_collect_lookups() |
| 2852 | |
| 2853 | |
| 2854 | API changes: |
| 2855 | |
| 2856 | - Remove "mask" parameter from hb_buffer_add(). |
| 2857 | - Rename hb_ot_layout_would_substitute_lookup() and hb_ot_layout_substitute_closure_lookup(). |
| 2858 | - hb-set.h API const correction. |
| 2859 | - Renamed hb_set_min/max() to hb_set_get_min/max(). |
| 2860 | - Rename hb_ot_layout_feature_get_lookup_indexes() to hb_ot_layout_feature_get_lookups(). |
| 2861 | - Rename hb_buffer_guess_properties() to hb_buffer_guess_segment_properties(). |
| 2862 | |
| 2863 | |
| 2864 | |
Behdad Esfahbod | da43a92 | 2012-11-13 13:48:26 -0800 | [diff] [blame] | 2865 | Overview of changes leading to 0.9.6 |
| 2866 | Sunday, November 13, 2012 |
| 2867 | ==================================== |
| 2868 | |
| 2869 | - Don't clear pre-context text if no new context is provided. |
| 2870 | - Fix ReverseChainingSubstLookup, which was totally borked. |
| 2871 | - Adjust output format of hb-shape a bit. |
| 2872 | - Include config.h.in in-tree. Makes it easier for alternate build systems. |
| 2873 | - Fix hb_buffer_set_length(buffer, 0) invalid memory allocation. |
| 2874 | - Use ICU LayoutEngine's C API instead of C++. Avoids much headache. |
| 2875 | - Drop glyphs for all of Unicode Default_Ignorable characters. |
| 2876 | - Misc build fixes. |
| 2877 | |
| 2878 | Arabic shaper: |
| 2879 | - Enable 'dlig' and 'mset' features in Arabic shaper. |
| 2880 | - Implement 'Phags-pa shaping, improve Mongolian. |
| 2881 | |
| 2882 | Indic shaper: |
| 2883 | - Decompose Sinhala split matras the way old HarfBuzz / Pango did. |
| 2884 | - Initial support for Consonant Medials. |
| 2885 | - Start adding new-style Myanmar shaping. |
| 2886 | - Make reph and 'pref' logic introspect the font. |
| 2887 | - Route Meetei-Mayek through the Indic shaper. |
| 2888 | - Don't apply 'liga' in Indic shaper. |
| 2889 | - Improve Malayalam pre-base reordering Ra interaction with Chillus. |
| 2890 | |
| 2891 | |
| 2892 | |
Behdad Esfahbod | 13c0584 | 2012-10-14 18:37:09 -0500 | [diff] [blame] | 2893 | Overview of changes leading to 0.9.5 |
| 2894 | Sunday, October 14, 2012 |
| 2895 | ==================================== |
| 2896 | |
| 2897 | - Synthetic-GSUB Arabic fallback shaping. |
| 2898 | |
| 2899 | - Misc Indic improvements. |
| 2900 | |
| 2901 | - Add build system support for pthread. |
| 2902 | |
| 2903 | - Imported UCDN for in-tree Unicode callbacks implementation. |
| 2904 | |
| 2905 | - Context-aware Arabic joining. |
| 2906 | |
| 2907 | - Misc other fixes. |
| 2908 | |
| 2909 | - New API: |
| 2910 | |
| 2911 | hb_feature_to/from-string() |
| 2912 | hb_buffer_[sg]et_content_type() |
| 2913 | |
| 2914 | |
| 2915 | |
Behdad Esfahbod | f7e81ce | 2012-09-04 15:32:37 -0400 | [diff] [blame] | 2916 | Overview of changes leading to 0.9.4 |
| 2917 | Tuesday, Sep 03, 2012 |
| 2918 | ==================================== |
| 2919 | |
| 2920 | - Indic improvements with old-spec Malayalam. |
| 2921 | |
| 2922 | - Better fallback glyph positioning, specially with Thai / Lao marks. |
| 2923 | |
| 2924 | - Implement dotted-circle insertion. |
| 2925 | |
| 2926 | - Better Arabic fallback shaping / ligation. |
| 2927 | |
| 2928 | - Added ICU LayoutEngine backend for testing. Call it by the 'icu_le' name. |
| 2929 | |
| 2930 | - Misc fixes. |
| 2931 | |
| 2932 | |
| 2933 | |
Behdad Esfahbod | 7fe00d1 | 2012-08-18 13:59:46 -0400 | [diff] [blame] | 2934 | Overview of changes leading to 0.9.3 |
| 2935 | Friday, Aug 18, 2012 |
| 2936 | ==================================== |
| 2937 | |
| 2938 | - Fixed fallback mark positioning for left-to-right text. |
| 2939 | |
| 2940 | - Improve mark positioning for the remaining combining classes. |
| 2941 | |
| 2942 | - Unbreak Thai and fallback Arabic shaping. |
| 2943 | |
| 2944 | - Port Arabic shaper to shape-plan caching. |
| 2945 | |
| 2946 | - Use new ICU normalizer functions. |
| 2947 | |
| 2948 | |
| 2949 | |
Behdad Esfahbod | e297ee4 | 2012-08-10 14:49:37 -0400 | [diff] [blame] | 2950 | Overview of changes leading to 0.9.2 |
Behdad Esfahbod | 9fe7605 | 2012-08-15 17:24:28 -0400 | [diff] [blame] | 2951 | Friday, Aug 10, 2012 |
Behdad Esfahbod | e297ee4 | 2012-08-10 14:49:37 -0400 | [diff] [blame] | 2952 | ==================================== |
| 2953 | |
| 2954 | - Over a thousand commits! This is the first major release of HarfBuzz. |
| 2955 | |
| 2956 | - HarfBuzz is feature-complete now! It should be in par, or better, than |
| 2957 | both Pango's shapers and old HarfBuzz / Qt shapers. |
| 2958 | |
| 2959 | - New Indic shaper, supporting main Indic scripts, Sinhala, and Khmer. |
| 2960 | |
| 2961 | - Improved Arabic shaper, with fallback Arabic shaping, supporting Arabic, |
| 2962 | Sinhala, N'ko, Mongolian, and Mandaic. |
| 2963 | |
| 2964 | - New Thai / Lao shaper. |
| 2965 | |
| 2966 | - Tibetan / Hangul support in the generic shaper. |
| 2967 | |
| 2968 | - Synthetic GDEF support for fonts without a GDEF table. |
| 2969 | |
| 2970 | - Fallback mark positioning for fonts without a GPOS table. |
| 2971 | |
| 2972 | - Unicode normalization shaping heuristic during glyph mapping. |
| 2973 | |
| 2974 | - New experimental Graphite2 backend. |
| 2975 | |
| 2976 | - New Uniscribe backend (primarily for testing). |
| 2977 | |
| 2978 | - New CoreText backend (primarily for testing). |
| 2979 | |
| 2980 | - Major optimization and speedup. |
| 2981 | |
| 2982 | - Test suites and testing infrastructure (work in progress). |
| 2983 | |
| 2984 | - Greatly improved hb-view cmdline tool. |
| 2985 | |
| 2986 | - hb-shape cmdline tool. |
| 2987 | |
| 2988 | - Unicode 6.1 support. |
| 2989 | |
| 2990 | Summary of API changes: |
| 2991 | |
| 2992 | o Changed API: |
| 2993 | |
| 2994 | - Users are expected to only include main header files now (ie. hb.h, |
| 2995 | hb-glib.h, hb-ft.h, ...) |
| 2996 | |
| 2997 | - All struct tag names had their initial underscore removed. |
| 2998 | Ie. "struct _hb_buffer_t" is "struct hb_buffer_t" now. |
| 2999 | |
| 3000 | - All set_user_data() functions now take a "replace" boolean parameter. |
| 3001 | |
| 3002 | - hb_buffer_create() takes zero arguments now. |
| 3003 | Use hb_buffer_pre_allocate() to pre-allocate. |
| 3004 | |
luz paz | e2e3050 | 2022-01-16 07:00:53 -0500 | [diff] [blame] | 3005 | - hb_buffer_add_utf*() now accept -1 for length parameters, |
Behdad Esfahbod | e297ee4 | 2012-08-10 14:49:37 -0400 | [diff] [blame] | 3006 | meaning "nul-terminated". |
| 3007 | |
| 3008 | - hb_direction_t enum values changed. |
| 3009 | |
| 3010 | - All *_from_string() APIs now take a length parameter to allow for |
| 3011 | non-nul-terminated strings. A -1 length means "nul-terminated". |
| 3012 | |
| 3013 | - Typedef for hb_language_t changed. |
| 3014 | |
| 3015 | - hb_get_table_func_t renamed to hb_reference_table_func_t. |
| 3016 | |
| 3017 | - hb_ot_layout_table_choose_script() |
| 3018 | |
| 3019 | - Various renames in hb-unicode.h. |
| 3020 | |
| 3021 | o New API: |
| 3022 | |
| 3023 | - hb_buffer_guess_properties() |
| 3024 | Automatically called by hb_shape(). |
| 3025 | |
| 3026 | - hb_buffer_normalize_glyphs() |
| 3027 | |
| 3028 | - hb_tag_from_string() |
| 3029 | |
| 3030 | - hb-coretext.h |
| 3031 | |
| 3032 | - hb-uniscribe.h |
| 3033 | |
| 3034 | - hb_face_reference_blob() |
| 3035 | - hb_face_[sg]et_index() |
| 3036 | - hb_face_set_upem() |
| 3037 | |
| 3038 | - hb_font_get_glyph_name_func_t |
| 3039 | hb_font_get_glyph_from_name_func_t |
| 3040 | hb_font_funcs_set_glyph_name_func() |
| 3041 | hb_font_funcs_set_glyph_from_name_func() |
| 3042 | hb_font_get_glyph_name() |
| 3043 | hb_font_get_glyph_from_name() |
| 3044 | hb_font_glyph_to_string() |
| 3045 | hb_font_glyph_from_string() |
| 3046 | |
| 3047 | - hb_font_set_funcs_data() |
| 3048 | |
| 3049 | - hb_ft_font_set_funcs() |
| 3050 | - hb_ft_font_get_face() |
| 3051 | |
| 3052 | - hb-gobject.h (work in progress) |
| 3053 | |
| 3054 | - hb_ot_shape_glyphs_closure() |
| 3055 | hb_ot_layout_substitute_closure_lookup() |
| 3056 | |
| 3057 | - hb-set.h |
| 3058 | |
| 3059 | - hb_shape_full() |
| 3060 | |
| 3061 | - hb_unicode_combining_class_t |
| 3062 | |
| 3063 | - hb_unicode_compose_func_t |
| 3064 | hb_unicode_decompose_func_t |
| 3065 | hb_unicode_decompose_compatibility_func_t |
| 3066 | hb_unicode_funcs_set_compose_func() |
| 3067 | hb_unicode_funcs_set_decompose_func() |
| 3068 | hb_unicode_funcs_set_decompose_compatibility_func() |
| 3069 | hb_unicode_compose() |
| 3070 | hb_unicode_decompose() |
| 3071 | hb_unicode_decompose_compatibility() |
| 3072 | |
| 3073 | o Removed API: |
| 3074 | |
| 3075 | - hb_ft_get_font_funcs() |
| 3076 | |
| 3077 | - hb_ot_layout_substitute_start() |
| 3078 | hb_ot_layout_substitute_lookup() |
| 3079 | hb_ot_layout_substitute_finish() |
| 3080 | hb_ot_layout_position_start() |
| 3081 | hb_ot_layout_position_lookup() |
| 3082 | hb_ot_layout_position_finish() |
| 3083 | |
| 3084 | |
| 3085 | |
Behdad Esfahbod | f245576 | 2011-05-25 16:08:06 -0400 | [diff] [blame] | 3086 | Overview of changes leading to 0.6.0 |
| 3087 | Friday, May 27, 2011 |
| 3088 | ==================================== |
| 3089 | |
| 3090 | - Vertical text support in GPOS |
| 3091 | - Almost all API entries have unit tests now, under test/ |
| 3092 | - All thread-safety issues are fixed |
| 3093 | |
| 3094 | Summary of API changes follows. |
| 3095 | |
| 3096 | |
| 3097 | * Simple Types API: |
| 3098 | |
| 3099 | o New API: |
| 3100 | HB_LANGUAGE_INVALID |
| 3101 | hb_language_get_default() |
| 3102 | hb_direction_to_string() |
| 3103 | hb_direction_from_string() |
| 3104 | hb_script_get_horizontal_direction() |
| 3105 | HB_UNTAG() |
| 3106 | |
| 3107 | o Renamed API: |
| 3108 | hb_category_t renamed to hb_unicode_general_category_t |
| 3109 | |
| 3110 | o Changed API: |
| 3111 | hb_language_t is a typed pointers now |
| 3112 | |
| 3113 | o Removed API: |
| 3114 | HB_TAG_STR() |
| 3115 | |
| 3116 | |
| 3117 | * Use ISO 15924 tags for hb_script_t: |
| 3118 | |
| 3119 | o New API: |
| 3120 | hb_script_from_iso15924_tag() |
| 3121 | hb_script_to_iso15924_tag() |
| 3122 | hb_script_from_string() |
| 3123 | |
| 3124 | o Changed API: |
| 3125 | HB_SCRIPT_* enum members changed value. |
| 3126 | |
| 3127 | |
| 3128 | * Buffer API streamlined: |
| 3129 | |
| 3130 | o New API: |
| 3131 | hb_buffer_reset() |
| 3132 | hb_buffer_set_length() |
| 3133 | hb_buffer_allocation_successful() |
| 3134 | |
| 3135 | o Renamed API: |
| 3136 | hb_buffer_ensure() renamed to hb_buffer_pre_allocate() |
| 3137 | hb_buffer_add_glyph() renamed to hb_buffer_add() |
| 3138 | |
| 3139 | o Removed API: |
| 3140 | hb_buffer_clear() |
| 3141 | hb_buffer_clear_positions() |
| 3142 | |
| 3143 | o Changed API: |
| 3144 | hb_buffer_get_glyph_infos() takes an out length parameter now |
| 3145 | hb_buffer_get_glyph_positions() takes an out length parameter now |
| 3146 | |
| 3147 | |
| 3148 | * Blob API streamlined: |
| 3149 | |
| 3150 | o New API: |
| 3151 | hb_blob_get_data() |
| 3152 | hb_blob_get_data_writable() |
| 3153 | |
| 3154 | o Renamed API: |
| 3155 | hb_blob_create_empty() renamed to hb_blob_get_empty() |
| 3156 | |
| 3157 | o Removed API: |
| 3158 | hb_blob_lock() |
| 3159 | hb_blob_unlock() |
| 3160 | hb_blob_is_writable() |
| 3161 | hb_blob_try_writable() |
| 3162 | |
| 3163 | o Changed API: |
| 3164 | hb_blob_create() takes user_data before destroy now |
| 3165 | |
| 3166 | |
| 3167 | * Unicode functions API: |
| 3168 | |
| 3169 | o Unicode function vectors can subclass other unicode function vectors now. |
| 3170 | Unimplemented callbacks in the subclass automatically chainup to the parent. |
| 3171 | |
| 3172 | o All hb_unicode_funcs_t callbacks take a user_data now. Their setters |
| 3173 | take a user_data and its respective destroy callback. |
| 3174 | |
| 3175 | o New API: |
| 3176 | hb_unicode_funcs_get_empty() |
| 3177 | hb_unicode_funcs_get_default() |
| 3178 | hb_unicode_funcs_get_parent() |
| 3179 | |
| 3180 | o Changed API: |
| 3181 | hb_unicode_funcs_create() now takes a parent_funcs. |
| 3182 | |
| 3183 | o Removed func getter functions: |
| 3184 | hb_unicode_funcs_get_mirroring_func() |
| 3185 | hb_unicode_funcs_get_general_category_func() |
| 3186 | hb_unicode_funcs_get_script_func() |
| 3187 | hb_unicode_funcs_get_combining_class_func() |
| 3188 | hb_unicode_funcs_get_eastasian_width_func() |
| 3189 | |
| 3190 | |
| 3191 | * Face API: |
| 3192 | |
| 3193 | o Renamed API: |
| 3194 | hb_face_get_table() renamed to hb_face_reference_table() |
| 3195 | hb_face_create_for_data() renamed to hb_face_create() |
| 3196 | |
| 3197 | o Changed API: |
| 3198 | hb_face_create_for_tables() takes user_data before destroy now |
| 3199 | hb_face_reference_table() returns empty blob instead of NULL |
| 3200 | hb_get_table_func_t accepts the face as first parameter now |
| 3201 | |
| 3202 | * Font API: |
| 3203 | |
| 3204 | o Fonts can subclass other fonts now. Unimplemented callbacks in the |
| 3205 | subclass automatically chainup to the parent. When chaining up, |
| 3206 | scale is adjusted if the parent font has a different scale. |
| 3207 | |
| 3208 | o All hb_font_funcs_t callbacks take a user_data now. Their setters |
| 3209 | take a user_data and its respective destroy callback. |
| 3210 | |
| 3211 | o New API: |
| 3212 | hb_font_get_parent() |
| 3213 | hb_font_funcs_get_empty() |
| 3214 | hb_font_create_sub_font() |
| 3215 | |
| 3216 | o Removed API: |
| 3217 | hb_font_funcs_copy() |
| 3218 | hb_font_unset_funcs() |
| 3219 | |
| 3220 | o Removed func getter functions: |
| 3221 | hb_font_funcs_get_glyph_func() |
| 3222 | hb_font_funcs_get_glyph_advance_func() |
| 3223 | hb_font_funcs_get_glyph_extents_func() |
| 3224 | hb_font_funcs_get_contour_point_func() |
| 3225 | hb_font_funcs_get_kerning_func() |
| 3226 | |
| 3227 | o Changed API: |
| 3228 | hb_font_create() takes a face and references it now |
| 3229 | hb_font_set_funcs() takes user_data before destroy now |
| 3230 | hb_font_set_scale() accepts signed integers now |
| 3231 | hb_font_get_contour_point_func_t now takes glyph first, then point_index |
| 3232 | hb_font_get_glyph_func_t returns a success boolean now |
| 3233 | |
| 3234 | |
| 3235 | * Changed object model: |
| 3236 | |
| 3237 | o All object types have a _get_empty() now: |
| 3238 | hb_blob_get_empty() |
| 3239 | hb_buffer_get_empty() |
| 3240 | hb_face_get_empty() |
| 3241 | hb_font_get_empty() |
| 3242 | hb_font_funcs_get_empty() |
| 3243 | hb_unicode_funcs_get_empty() |
| 3244 | |
| 3245 | o Added _set_user_data() and _get_user_data() for all object types: |
| 3246 | hb_blob_get_user_data() |
| 3247 | hb_blob_set_user_data() |
| 3248 | hb_buffer_get_user_data() |
| 3249 | hb_buffer_set_user_data() |
| 3250 | hb_face_get_user_data() |
| 3251 | hb_face_set_user_data() |
| 3252 | hb_font_funcs_get_user_data() |
| 3253 | hb_font_funcs_set_user_data() |
| 3254 | hb_font_get_user_data() |
| 3255 | hb_font_set_user_data() |
| 3256 | hb_unicode_funcs_get_user_data() |
| 3257 | hb_unicode_funcs_set_user_data() |
| 3258 | |
| 3259 | o Removed the _get_reference_count() from all object types: |
| 3260 | hb_blob_get_reference_count() |
| 3261 | hb_buffer_get_reference_count() |
| 3262 | hb_face_get_reference_count() |
| 3263 | hb_font_funcs_get_reference_count() |
| 3264 | hb_font_get_reference_count() |
| 3265 | hb_unicode_funcs_get_reference_count() |
| 3266 | |
| 3267 | o Added _make_immutable() and _is_immutable() for all object types except for buffer: |
| 3268 | hb_blob_make_immutable() |
| 3269 | hb_blob_is_immutable() |
| 3270 | hb_face_make_immutable() |
| 3271 | hb_face_is_immutable() |
| 3272 | |
| 3273 | |
| 3274 | * Changed API for vertical text support |
| 3275 | |
| 3276 | o The following callbacks where removed: |
| 3277 | hb_font_get_glyph_advance_func_t |
| 3278 | hb_font_get_kerning_func_t |
| 3279 | |
| 3280 | o The following new callbacks added instead: |
| 3281 | hb_font_get_glyph_h_advance_func_t |
| 3282 | hb_font_get_glyph_v_advance_func_t |
| 3283 | hb_font_get_glyph_h_origin_func_t |
| 3284 | hb_font_get_glyph_v_origin_func_t |
| 3285 | hb_font_get_glyph_h_kerning_func_t |
| 3286 | hb_font_get_glyph_v_kerning_func_t |
| 3287 | |
| 3288 | o The following API removed as such: |
| 3289 | hb_font_funcs_set_glyph_advance_func() |
| 3290 | hb_font_funcs_set_kerning_func() |
| 3291 | hb_font_get_glyph_advance() |
| 3292 | hb_font_get_kerning() |
| 3293 | |
| 3294 | o New API added instead: |
| 3295 | hb_font_funcs_set_glyph_h_advance_func() |
| 3296 | hb_font_funcs_set_glyph_v_advance_func() |
| 3297 | hb_font_funcs_set_glyph_h_origin_func() |
| 3298 | hb_font_funcs_set_glyph_v_origin_func() |
| 3299 | hb_font_funcs_set_glyph_h_kerning_func() |
| 3300 | hb_font_funcs_set_glyph_v_kerning_func() |
| 3301 | hb_font_get_glyph_h_advance() |
| 3302 | hb_font_get_glyph_v_advance() |
| 3303 | hb_font_get_glyph_h_origin() |
| 3304 | hb_font_get_glyph_v_origin() |
| 3305 | hb_font_get_glyph_h_kerning() |
| 3306 | hb_font_get_glyph_v_kerning() |
| 3307 | |
| 3308 | o The following higher-leve API added for convenience: |
| 3309 | hb_font_get_glyph_advance_for_direction() |
| 3310 | hb_font_get_glyph_origin_for_direction() |
| 3311 | hb_font_add_glyph_origin_for_direction() |
| 3312 | hb_font_subtract_glyph_origin_for_direction() |
| 3313 | hb_font_get_glyph_kerning_for_direction() |
| 3314 | hb_font_get_glyph_extents_for_origin() |
| 3315 | hb_font_get_glyph_contour_point_for_origin() |
| 3316 | |
| 3317 | |
| 3318 | * OpenType Layout API: |
| 3319 | |
| 3320 | o New API: |
| 3321 | hb_ot_layout_position_start() |
| 3322 | hb_ot_layout_substitute_start() |
| 3323 | hb_ot_layout_substitute_finish() |
| 3324 | |
| 3325 | |
| 3326 | * Glue code: |
| 3327 | |
| 3328 | o New API: |
| 3329 | hb_glib_script_to_script() |
| 3330 | hb_glib_script_from_script() |
| 3331 | hb_icu_script_to_script() |
| 3332 | hb_icu_script_from_script() |
| 3333 | |
| 3334 | |
| 3335 | * Version API added: |
| 3336 | |
| 3337 | o New API: |
| 3338 | HB_VERSION_MAJOR |
| 3339 | HB_VERSION_MINOR |
| 3340 | HB_VERSION_MICRO |
| 3341 | HB_VERSION_STRING |
| 3342 | HB_VERSION_CHECK() |
| 3343 | hb_version() |
| 3344 | hb_version_string() |
| 3345 | hb_version_check() |
| 3346 | |
| 3347 | |