| Overview of changes leading to 8.2.1 |
| Monday, September 18, 2023 |
| ==================================== |
| - Unicode 15.1 support. |
| |
| |
| Overview of changes leading to 8.2.0 |
| Friday, September 8, 2023 |
| ==================================== |
| - Various build and fuzzing fixes |
| - Improvements to COLRv1 painting. |
| |
| - New API: |
| +hb_paint_color_glyph_func_t |
| +hb_paint_funcs_set_color_glyph_func |
| +hb_paint_color_glyph |
| |
| |
| Overview of changes leading to 8.1.1 |
| Wednesday, August 2, 2023 |
| ==================================== |
| - Fix shaping of contextual rules at the end of string, introduced in 8.1.0 |
| - Fix stack-overflow in repacker with malicious fonts. |
| - 30% speed up loading Noto Duployan font. |
| |
| |
| Overview of changes leading to 8.1.0 |
| Tuesday, August 1, 2023 |
| ==================================== |
| - Fix long-standing build issue with the AIX compiler and older Apple clang. |
| |
| - Revert optimization that could cause timeout during subsetting with malicious fonts. |
| |
| - More optimization work: |
| - 45% speed up in shaping Noto Duployan font. |
| - 10% speed up in subsetting Noto Duployan font. |
| - Another 8% speed up in shaping Gulzar. |
| - 5% speed up in loading Roboto. |
| |
| - New API: |
| +hb_ot_layout_collect_features_map() |
| |
| |
| Overview of changes leading to 8.0.1 |
| Wednesday, July 12, 2023 |
| ==================================== |
| - Build fix on 32-bit ARM. |
| |
| - More speed optimizations: |
| - 60% speed up in retain-gid (used for IFT) subsetting of SourceHanSans-VF. |
| - 16% speed up in retain-gid (used for IFT) subsetting of NotoSansCJKkr. |
| - 38% speed up in subsetting (beyond-64k) mega-merged Noto. |
| |
| |
| Overview of changes leading to 8.0.0 |
| Sunday, July 9, 2023 |
| ==================================== |
| - New, experimental, WebAssembly (WASM) shaper, that provides greater |
| flexibility over OpenType/AAT/Graphite shaping, using WebAssembly embedded |
| inside the font file. Currently WASM shaper is disabled by default and needs |
| to be enabled at build time. For details, see: |
| |
| https://github.com/harfbuzz/harfbuzz/blob/main/docs/wasm-shaper.md |
| |
| For example fonts making use of the WASM shaper, see: |
| |
| https://github.com/harfbuzz/harfbuzz-wasm-examples |
| |
| - Improvements to Experimental features introduced in earlier releases: |
| - Support for subsetting beyond-64k and VarComposites fonts. |
| - Support for instancing variable fonts with cubic “glyf” table. |
| |
| - Many big speed optimizations: |
| - Up to 89% speedup loading variable fonts for shaping. |
| - Up to 88% speedup in small subsets of large (eg. CJK) fonts (both TTF and |
| OTF), essential for Incremental Font Transfer (IFT). |
| - Over 50% speedup in loading Roboto font for shaping. |
| - Up to 40% speed up in loading (sanitizing) complex fonts. |
| - 30% speed up in shaping Gulzar font. |
| - Over 25% speedup in glyph loading Roboto font. |
| - 10% speed up loading glyph shapes in VarComposite Hangul font. |
| - hb-hashmap optimizations & hashing improvements. |
| |
| - New macro HB_ALWAYS_INLINE. HarfBuzz now inlines functions more aggressively, |
| which results in some speedup at the expense of bigger code size. To disable |
| this feature define the macro to just inline. |
| |
| - New API: |
| +HB_CODEPOINT_INVALID |
| +hb_ot_layout_get_baseline2() |
| +hb_ot_layout_get_baseline_with_fallback2() |
| +hb_ot_layout_get_font_extents() |
| +hb_ot_layout_get_font_extents2() |
| +hb_subset_input_set_axis_range() |
| |
| |
| Overview of changes leading to 7.3.0 |
| Tuesday, May 9, 2023 |
| ==================================== |
| - Speedup applying glyph variation in VarComposites fonts (over 40% speedup). |
| (Behdad Esfahbod) |
| - Speedup instancing some fonts (over 20% speedup in instancing RobotoFlex). |
| (Behdad Esfahbod) |
| - Speedup shaping some fonts (over 30% speedup in shaping Roboto). |
| (Behdad Esfahbod) |
| - Support subsetting VarComposites and beyond-64k fonts. (Behdad Esfahbod) |
| - New configuration macro HB_MINIMIZE_MEMORY_USAGE to favor optimizing memory |
| usage over speed. (Behdad Esfahbod) |
| - Supporting setting the mapping between old and new glyph indices during |
| subsetting. (Garret Rieger) |
| - Various fixes and improvements. |
| (Behdad Esfahbod, Denis Rochette, Garret Rieger, Han Seung Min, Qunxin Liu) |
| |
| - New API: |
| +hb_subset_input_old_to_new_glyph_mapping() |
| |
| |
| Overview of changes leading to 7.2.0 |
| Thursday, April 27, 2023 |
| ==================================== |
| - Add Tifinagh to the list of scripts that can natively be either right-to-left |
| or left-to-right, to improve handling of its glyph positioning. |
| (Simon Cozens) |
| - Return also single substitution from hb_ot_layout_lookup_get_glyph_alternates() |
| (Behdad Esfahbod) |
| - Fix 4.2.0 regression in applying across syllables in syllabic scripts. |
| (Behdad Esfahbod) |
| - Add flag to avoid glyph substitution closure during subsetting, and the |
| corresponding “--no-layout-closure” option to “hb-subset” command line tool. |
| (Garret Rieger) |
| - Support instancing COLRv1 table. (Qunxin Liu) |
| - Don’t drop used user-defined name table entries during subsetting. |
| (Qunxin Liu) |
| - Optimize handling of “gvar” table. (Behdad Esfahbod) |
| - Various subsetter bug fixes and improvements. (Garret Rieger, Qunxin Liu) |
| - Various documentation improvements. (Behdad Esfahbod, Josef Friedrich) |
| |
| - New API: |
| +HB_SUBSET_FLAGS_NO_LAYOUT_CLOSURE |
| +HB_UNICODE_COMBINING_CLASS_CCC132 |
| |
| - Deprecated API: |
| +HB_UNICODE_COMBINING_CLASS_CCC133 |
| |
| |
| Overview of changes leading to 7.1.0 |
| Friday, March 3, 2023 |
| ==================================== |
| - New experimental hb_shape_justify() API that uses font variations to expand |
| or shrink the text to a given advance. (Behdad Esfahbod) |
| - Various build and bug fixes. (Behdad Esfahbod, Garret Rieger, Qunxin Liu) |
| |
| - New API: |
| +hb_font_set_variation() |
| |
| |
| Overview of changes leading to 7.0.1 |
| Monday, February 20, 2023 |
| ==================================== |
| - Various build and bug fixes. |
| |
| |
| Overview of changes leading to 7.0.0 |
| Saturday, February 11, 2023 |
| ==================================== |
| - New hb-paint API that is designed mainly to paint “COLRv1” glyphs, but can be |
| also used as a unified API to paint any of the glyph representations |
| supported by HarfBuzz (B/W outlines, color layers, or color bitmaps). |
| (Behdad Esfahbod, Matthias Clasen) |
| - New hb-cairo API for integrating with cairo graphics library. This is provided |
| as a separate harfbuzz-cairo library. (Behdad Esfahbod, Matthias Clasen) |
| - Support for instancing “CFF2” table. (Behdad Esfahbod) |
| - Support font emboldening. (Behdad Esfahbod) |
| - Support feature ranges with AAT shaping. (Behdad Esfahbod) |
| - Experimental support to cubic curves in “glyf” table, see |
| https://github.com/harfbuzz/boring-expansion-spec/blob/main/glyf1-cubicOutlines.md |
| for spec. (Behdad Esfahbod) |
| - Various subsetter improvements. (Garret Rieger, Qunxin Liu, Behdad Esfahbod) |
| - Various documentation improvements. |
| (Behdad Esfahbod, Matthias Clasen, Khaled Hosny) |
| - Significantly reduced memory use during shaping. (Behdad Esfahbod) |
| - Greatly reduced memory use during subsetting “CFF” table. (Behdad Esfahbod) |
| - New command line utility, hb-info, for querying various font information. |
| (Behdad Esfahbod, Matthias Clasen) |
| - New hb-shape/hb-view options: --glyphs, --color-palette, --font-bold, |
| --font-grade, and --named-instance. (Behdad Esfahbod) |
| - Miscellaneous fixes and improvements. |
| (Amir Masoud Abdol, Andres Salomon, Behdad Esfahbod, Chun-wei Fan, |
| Garret Rieger, Jens Kutilek, Khaled Hosny, Konstantin Käfer, Matthias Clasen, |
| Nirbheek Chauhan, Pedro J. Estébanez, Qunxin Liu, Sergei Trofimovich) |
| |
| - New API: |
| +HB_FONT_NO_VAR_NAMED_INSTANCE |
| +HB_PAINT_IMAGE_FORMAT_BGRA |
| +HB_PAINT_IMAGE_FORMAT_PNG |
| +HB_PAINT_IMAGE_FORMAT_SVG |
| +hb_cairo_font_face_create_for_face |
| +hb_cairo_font_face_create_for_font |
| +hb_cairo_font_face_get_face |
| +hb_cairo_font_face_get_font |
| +hb_cairo_font_face_get_scale_factor |
| +hb_cairo_font_face_set_font_init_func |
| +hb_cairo_font_face_set_scale_factor |
| +hb_cairo_font_init_func_t |
| +hb_cairo_glyphs_from_buffer |
| +hb_cairo_scaled_font_get_font |
| +hb_color_line_get_color_stops |
| +hb_color_line_get_color_stops_func_t |
| +hb_color_line_get_extend |
| +hb_color_line_get_extend_func_t |
| +hb_color_line_t |
| +hb_color_stop_t |
| +hb_draw_funcs_get_empty |
| +hb_draw_funcs_get_user_data |
| +hb_draw_funcs_set_user_data |
| +hb_face_collect_nominal_glyph_mapping |
| +hb_font_draw_glyph |
| +hb_font_draw_glyph_func_t |
| +hb_font_funcs_set_draw_glyph_func |
| +hb_font_funcs_set_paint_glyph_func |
| +hb_font_get_synthetic_bold |
| +hb_font_get_var_named_instance |
| +hb_font_paint_glyph |
| +hb_font_paint_glyph_func_t |
| +hb_font_set_synthetic_bold |
| +hb_map_keys |
| +hb_map_next |
| +hb_map_update |
| +hb_map_values |
| +hb_ot_color_glyph_has_paint |
| +hb_ot_color_has_paint |
| +hb_ot_layout_script_select_language2 |
| +hb_ot_name_id_predefined_t |
| +hb_paint_color |
| +hb_paint_color_func_t |
| +hb_paint_composite_mode_t |
| +hb_paint_custom_palette_color |
| +hb_paint_custom_palette_color_func_t |
| +hb_paint_extend_t |
| +hb_paint_funcs_create |
| +hb_paint_funcs_destroy |
| +hb_paint_funcs_get_empty |
| +hb_paint_funcs_get_user_data |
| +hb_paint_funcs_is_immutable |
| +hb_paint_funcs_make_immutable |
| +hb_paint_funcs_reference |
| +hb_paint_funcs_set_color_func |
| +hb_paint_funcs_set_custom_palette_color_func |
| +hb_paint_funcs_set_image_func |
| +hb_paint_funcs_set_linear_gradient_func |
| +hb_paint_funcs_set_pop_clip_func |
| +hb_paint_funcs_set_pop_group_func |
| +hb_paint_funcs_set_pop_transform_func |
| +hb_paint_funcs_set_push_clip_glyph_func |
| +hb_paint_funcs_set_push_clip_rectangle_func |
| +hb_paint_funcs_set_push_group_func |
| +hb_paint_funcs_set_push_transform_func |
| +hb_paint_funcs_set_radial_gradient_func |
| +hb_paint_funcs_set_sweep_gradient_func |
| +hb_paint_funcs_set_user_data |
| +hb_paint_funcs_t |
| +hb_paint_image |
| +hb_paint_image_func_t |
| +hb_paint_linear_gradient |
| +hb_paint_linear_gradient_func_t |
| +hb_paint_pop_clip |
| +hb_paint_pop_clip_func_t |
| +hb_paint_pop_group |
| +hb_paint_pop_group_func_t |
| +hb_paint_pop_transform |
| +hb_paint_pop_transform_func_t |
| +hb_paint_push_clip_glyph |
| +hb_paint_push_clip_glyph_func_t |
| +hb_paint_push_clip_rectangle |
| +hb_paint_push_clip_rectangle_func_t |
| +hb_paint_push_group |
| +hb_paint_push_group_func_t |
| +hb_paint_push_transform |
| +hb_paint_push_transform_func_t |
| +hb_paint_radial_gradient |
| +hb_paint_radial_gradient_func_t |
| +hb_paint_sweep_gradient |
| +hb_paint_sweep_gradient_func_t |
| +hb_set_is_inverted |
| +hb_subset_input_keep_everything |
| |
| - Deprecated API: |
| +hb_font_funcs_set_glyph_shape_func |
| +hb_font_get_glyph_shape_func_t |
| +hb_font_get_glyph_shape |
| |
| |
| Overview of changes leading to 6.0.0 |
| Friday, December 16, 2022 |
| ==================================== |
| - A new API have been added to pre-process the face and speed up future |
| subsetting operations on that face. Provides up to a 95% reduction in |
| subsetting times when the same face is subset more than once. |
| |
| For more details and benchmarks, see: |
| https://github.com/harfbuzz/harfbuzz/blob/main/docs/subset-preprocessing.md |
| |
| (Garret Rieger, Behdad Esfahbod) |
| |
| - Shaping have been speedup by skipping entire lookups when the buffer contents |
| don't intersect with the lookup. Shows up to a 10% speedup in shaping some |
| fonts. (Behdad Esfahbod) |
| |
| - A new experimental feature, “Variable Composites” (enabled by passing |
| -Dexperimental_api=true to meson), is also featured in this release. |
| This technology enables drastic compression of fonts in the Chinese, |
| Japanese, Korean, and other writing systems, by reusing the OpenType Font |
| Variations technology for encoding “smart components” into the font. |
| |
| The specification for these extensions to the font format can be found in: |
| https://github.com/harfbuzz/boring-expansion-spec/blob/glyf1/glyf1.md |
| |
| A test variable-font with ~7160 Hangul syllables derived from the |
| NotoSerifKR-VF font has been built, with existing OpenType technology, as |
| well as with the new Variable Composites (VarComposites) technology. The |
| VarComposites font is over 90% smaller than the OpenType version of the font! |
| Both fonts can be obtained from the “smarties” repository: |
| https://github.com/behdad/smarties/tree/3.0/fonts/hangul/serif |
| |
| When building HarfBuzz with experimental features enabled, you can test |
| the “smarties” font with a sample character like this: |
| |
| $ hb-view butchered-hangul-serif-smarties-variable.ttf -u AE01 --variations=wght=700 |
| |
| (Behdad Esfahbod) |
| |
| - The HarfBuzz subsetter can now drop axes by pinning them to specific values |
| (also referred to as instancing). There are a couple of restrictions |
| currently: |
| |
| - Only works with TrueType (“glyf”) based fonts. “CFF2” fonts are not yet |
| supported. |
| - Only supports the case where all axes in a font are pinned. |
| |
| (Garret Rieger, Qunxin Liu) |
| |
| - Miscellaneous fixes and improvements. |
| |
| (Behdad Esfahbod, Christoph Reiter, David Corbett, Eli Schwartz, Garret |
| Rieger, Joel Auterson, Jordan Petridis, Khaled Hosny, Lorenz Wildberg, |
| Marco Rebhan, Martin Storsjö, Matthias Clasen, Qunxin Liu, Satadru Pramanik) |
| |
| |
| - New API |
| +hb_subset_input_pin_axis_location() |
| +hb_subset_input_pin_axis_to_default() |
| +hb_subset_preprocess() |
| |
| |
| Overview of changes leading to 5.3.1 |
| Wednesday, October 19, 2022 |
| ==================================== |
| - Subsetter repacker fixes. (Garret Rieger) |
| - Adjust Grapheme clusters for Katakana voiced sound marks. (Behdad Esfahbod) |
| - New “hb-subset” option “--preprocess-face”. (Garret Rieger) |
| |
| |
| Overview of changes leading to 5.3.0 |
| Saturday, October 8, 2022 |
| "Women, Life, Freedom" #MahsaAmini |
| ==================================== |
| - Don’t add glyphs from dropped MATH or COLR tables to the subset glyphs. |
| (Khaled Hosny) |
| - Map “rlig” to appropriate AAT feature selectors. (Jonathan Kew) |
| - Update USE data files to latest version. (David Corbett) |
| - Check “CBDT” extents first before outline tables, to help with fonts that |
| also include an empty “glyf” table. (Khaled Hosny) |
| - More work towards variable font instancing in the subsetter. (Qunxin Liu) |
| - Subsetter repacker improvements. (Garret Rieger) |
| - New API: |
| +hb_ot_layout_lookup_get_optical_bound() |
| +hb_face_builder_sort_tables() |
| |
| |
| Overview of changes leading to 5.2.0 |
| Saturday, September 17, 2022 |
| ==================================== |
| - Fix regressions in hb-ft font functions for FT_Face’s with transformation |
| matrix. (Behdad Esfahbod) |
| - The experimental hb-repacker API now supports splitting several GPOS subtable |
| types when needed. (Garret Rieger) |
| - The HarfBuzz extensions to OpenType font format are now opt-in behind |
| build-time flags. (Behdad Esfahbod) |
| - The experimental hb-subset variable fonts instantiation API can now |
| instantiate more font tables and arbitrary axis locations. (Qunxin Liu) |
| - Unicode 15 support. (David Corbett) |
| - Various documentation improvements. (Behdad Esfahbod, Matthias Clasen) |
| - The hb-view command line tool now detects WezTerm inline images support. |
| (Wez Furlong) |
| - Fix FreeType and ICU dependency lookup with meson. (Xavier Claessens) |
| |
| - New API: |
| +HB_SCRIPT_KAWI |
| +HB_SCRIPT_NAG_MUNDARI |
| |
| |
| Overview of changes leading to 5.1.0 |
| Sunday, July 31, 2022 |
| ==================================== |
| - More extensive buffer tracing messages. (Behdad Esfahbod) |
| - Fix hb-ft regression in bitmap fonts rendering. (Behdad Esfahbod) |
| - Support extension promotion of lookups in hb-subset-repacker. (Garret Rieger) |
| - A new HB_GLYPH_FLAG_SAFE_TO_INSERT_TATWEEL for scripts that use elongation |
| (e.g. Arabic) to signify where it is safe to insert tatweel glyph without |
| interrupting shaping. (Behdad Esfahbod) |
| - Add “--safe-to-insert-tatweel” to “hb-shape” tool. (Behdad Esfahbod) |
| |
| - New API |
| +HB_GLYPH_FLAG_SAFE_TO_INSERT_TATWEEL |
| +HB_BUFFER_FLAG_PRODUCE_SAFE_TO_INSERT_TATWEEL |
| |
| |
| Overview of changes leading to 5.0.1 |
| Saturday, July 23, 2022 |
| ==================================== |
| - Fix version 2 “avar” table with hb-ft. (Behdad Esfahbod) |
| |
| |
| Overview of changes leading to 5.0.0 |
| Saturday, July 23, 2022 |
| ==================================== |
| - Support fonts with more than 65535 glyphs in “GDEF”, “GSUB”, and “GPOS” |
| tables. This is part of https://github.com/be-fonts/boring-expansion-spec to |
| extend OpenType in a backward-compatible way. |
| (Behdad Esfahbod, Garret Rieger) |
| - Complete support for more than 65535 glyphs in “glyf” table that started in |
| 4.0.0 release. Part of boring-expansion-spec. (Behdad Esfahbod) |
| - Support version 2 of “avar” table. Part of boring-expansion-spec. |
| (Behdad Esfahbod) |
| - Fix mark attachment on multiple substitutions in some cases. |
| (Behdad Esfahbod) |
| - Fix application of “calt”, “rclt”, and “ccmp” features to better match |
| Uniscribe behaviour with some Arabic fonts. (Behdad Esfahbod) |
| - Improvement to interaction between multiple cursive attachments. |
| (Behdad Esfahbod) |
| - Improve multiple mark interactions in Hebrew. (Behdad Esfahbod) |
| - Implement language-specific forms in AAT shaping. (Behdad Esfahbod) |
| - Fix variation of “VORG” table. (Behdad Esfahbod) |
| - Support for specific script tags to be retained in the subsetter, and add |
| “--layout-scripts” option to “hb-subset” tool. (Garret Rieger) |
| - Accept space as delimiter for --features/--variations in command line tools. |
| - Improve subsetting of “COLR” table. (Qunxin Liu) |
| - Improved fuzzing coverage for ot-math API. (Frédéric Wang) |
| - Fix “kern” table version 2 (AAT) sanitization on 32-bit systems. |
| (Behdad Esfahbod) |
| - Allow negative glyph advances from “graphite2” shaper. (Stephan Bergmann) |
| - Implement loading (color) bitmap fonts with hb-ft. (Behdad Esfahbod) |
| - Fix regression in hb-ft when changing font size. (Behdad Esfahbod) |
| - Fix build on GCC < 7. (Kleis Auke Wolthuizen) |
| - Dynamically load dwrite.dll on windows if “directwrite” shaper is enabled. |
| (Luca Bacci) |
| - Provide a single-file harfbuzz-subset.cc file for easier alternate building |
| of hb-subset library, similar to harfbuzz.cc. (Khaled Hosny) |
| |
| - New API |
| +HB_SUBSET_SETS_LAYOUT_SCRIPT_TAG |
| +hb_language_matches() |
| |
| |
| Overview of changes leading to 4.4.1 |
| Wednesday, June 29, 2022 |
| ==================================== |
| - Fix test failure with some compilers. |
| - Fix Telugu and Kannada kerning regression. |
| |
| |
| Overview of changes leading to 4.4.0 |
| Monday, June 27, 2022 |
| ==================================== |
| - Caching of variable fonts shaping, in particular when using HarfBuzz’s own |
| font loading functions (ot). Bringing performance of variable shaping in par |
| with non-variable fonts shaping. (Behdad Esfahbod) |
| - Caching of format 2 “Contextual Substitution” and “Chained Contexts |
| Substitution” lookups. Resulting in up to 20% speedup of lookup-heavy fonts |
| like Gulzar or Noto Nastaliq Urdu. (Behdad Esfahbod) |
| - Improved ANSI output from hb-view. (Behdad Esfahbod) |
| - Support for shaping legacy, pre-OpenType Windows 3.1-era, Arabic fonts that |
| relied on a fixed PUA encoding. (Khaled Hosny, Behdad Esfahbod) |
| - Sinhala script is now shaped by the USE shaper instead of “indic” one. |
| (Behdad Esfahbod, David Corbett) |
| - Thai shaper improvements. (David Corbett) |
| - hb-ot-name API supports approximate BCP-47 language matching, for example |
| asking for “en_US” in a font that has only “en” names will return them. |
| (Behdad Esfahbod) |
| - Optimized TrueType glyph shape loading. (Behdad Esfahbod) |
| - Fix subsetting of HarfBuzz faces created via hb_face_create_for_tables(). |
| (Garret Rieger) |
| - Add 32 bit var store support to the subsetter. (Garret Rieger) |
| |
| - New API |
| +HB_BUFFER_FLAG_DEFINED |
| +HB_BUFFER_SERIALIZE_FLAG_DEFINED |
| +hb_font_changed() |
| +hb_font_get_serial() |
| +hb_ft_hb_font_changed() |
| +hb_set_hash() |
| +hb_map_copy() |
| +hb_map_hash() |
| |
| |
| Overview of changes leading to 4.3.0 |
| Friday, May 20, 2022 |
| ==================================== |
| - Major speed up in loading and subsetting fonts, especially in |
| handling CFF table. Subsetting some fonts is now 3 times faster. |
| (Behdad Esfahbod, Garret Rieger) |
| - Speed up blending CFF2 table. (Behdad Esfahbod) |
| - Speed up hb_ot_tags_from_language(). (Behdad Esfahbod, David Corbett) |
| - Fix USE classification of U+10A38 to fix multiple marks on single Kharoshthi |
| base. (David Corbett) |
| - Fix parsing of empty CFF Index. (Behdad Esfahbod) |
| - Fix subsetting CPAL table with partial palette overlaps. (Garret Rieger) |
| |
| - New API |
| +hb_map_is_equal() (Behdad Esfahbod) |
| |
| |
| Overview of changes leading to 4.2.1 |
| Sunday, April 24, 2022 |
| ==================================== |
| - Make sure hb_blob_create_from_file_or_fail() always returns nullptr in case |
| of failure and not empty blob sometimes. (Khaled Hosny) |
| - Add --passthrough-tables option to hb-subset. (Cosimo Lupo) |
| - Reinstate a pause after basic features in Khmer shaper, fixing a regression |
| introduced in previous release. (Behdad Esfahbod) |
| - Better handling of Regional_Indicator when shaped with RTL-native scripts, |
| reverting earlier fix that caused regressions in AAT shaping. (Behdad Esfahbod) |
| |
| |
| Overview of changes leading to 4.2.0 |
| Wednesday, March 30, 2022 |
| ==================================== |
| - Source code reorganization, splitting large hb-ot-layout files into smaller, |
| per-subtable ones under OT/Layout/*. Code for more tables will follow suit in |
| later releases. (Garret Rieger, Behdad Esfahbod) |
| - Revert Indic shaper change in previous release that broke some fonts and |
| instead make per-syllable restriction of “GSUB” application limited to |
| script-specific Indic features, while applying them and discretionary |
| features in one go. (Behdad Esfahbod) |
| - Fix decoding of private in gvar table. (Behdad Esfahbod) |
| - Fix handling of contextual lookups that delete too many glyphs. (Behdad Esfahbod) |
| - Make “morx” deleted glyphs don’t block “GPOS” application. (Behdad Esfahbod) |
| - Various build fixes. (Chun-wei Fan, Khaled Hosny) |
| |
| - New API |
| +hb_set_next_many() (Andrew John) |
| |
| |
| Overview of changes leading to 4.1.0 |
| Wednesday, March 23, 2022 |
| ==================================== |
| - Various OSS-Fuzz fixes. (Behdad Esfahbod) |
| - Make fallback vertical-origin match FreeType’s. (Behdad Esfahbod) |
| - Treat visible viramas like dependent vowels in USE shaper. (David Corbett) |
| - Apply presentation forms features and discretionary features in one go in |
| Indic shaper, which seems to match Uniscribe and CoreText behaviour. |
| (Behdad Esfahbod, David Corbett) |
| - Various bug fixes. |
| |
| - New API |
| +hb_set_add_sorted_array() (Andrew John) |
| |
| |
| Overview of changes leading to 4.0.1 |
| Friday, March 11, 2022 |
| ==================================== |
| - Update OpenType to AAT mappings for “hist” and “vrtr” features. |
| (Florian Pircher) |
| - Update IANA Language Subtag Registry to 2022-03-02. (David Corbett) |
| - Update USE shaper to allow any non-numeric tail in a symbol cluster, and |
| remove obsolete data overrides. (David Corbett) |
| - Fix handling of baseline variations to return correctly scaled values. |
| (Matthias Clasen) |
| - A new experimental hb_subset_repack_or_fail() to repack an array of objects, |
| eliminating offset overflows. The API is not available unless HarfBuzz is |
| built with experimental APIs enabled. (Qunxin Liu) |
| |
| - New experimental API |
| +hb_link_t |
| +hb_object_t |
| +hb_subset_repack_or_fail() |
| |
| |
| Overview of changes leading to 4.0.0 |
| Tuesday, March 1, 2022 |
| ==================================== |
| - New public API to create subset plan and gather information on things like |
| glyph mappings in the final subset. The plan can then be passed on to perform |
| the subsetting operation. (Garret Rieger) |
| - Draw API for extracting glyph shapes have been extended and finalized and is |
| no longer an experimental API. The draw API supports glyf, CFF and CFF2 |
| glyph outlines tables, and applies variation settings set on the font as well |
| as synthetic slant. The new public API is not backward compatible with the |
| previous, non-public, experimental API. (Behdad Esfahbod) |
| - The hb-view tool will use HarfBuzz draw API to render the glyphs instead of |
| cairo-ft when compiled with Cairo 1.17.5 or newer, setting HB_DRAW |
| environment variable to 1 or 0 will force using or not use the draw API, |
| respectively. (Behdad Esfahbod) |
| - The hb-shape and hb-view tools now default to using HarfBuzz’s own font |
| loading functions (ot) instead of FreeType ones (ft). They also have a new |
| option, --font-slant, to apply synthetic slant to the font. (Behdad Esfahbod) |
| - HarfBuzz now supports more than 65535 (the OpenType limit) glyph shapes and |
| metrics. See https://github.com/be-fonts/boring-expansion-spec/issues/6 and |
| https://github.com/be-fonts/boring-expansion-spec/issues/7 for details. |
| (Behdad Esfahbod) |
| - New API to get the dominant horizontal baseline tag for a given script. |
| (Behdad Esfahbod) |
| - New API to get the baseline positions from the font, and synthesize missing |
| ones. As well as new API to get font metrics and synthesize missing ones. |
| (Matthias Clasen) |
| - Improvements to finding dependencies on Windows when building with Visual |
| Studio. (Chun-wei Fan) |
| - New buffer flag, HB_BUFFER_FLAG_PRODUCE_UNSAFE_TO_CONCAT, that must be set |
| during shaping for HB_GLYPH_FLAG_UNSAFE_TO_CONCAT flag to be reliably |
| produced. This is to limit the performance hit of producing this flag to when |
| it is actually needed. (Behdad Esfahbod) |
| - Documentation improvements. (Matthias Clasen) |
| |
| - New API |
| - General: |
| +HB_BUFFER_FLAG_PRODUCE_UNSAFE_TO_CONCAT |
| +hb_var_num_t |
| |
| - Draw: |
| +hb_draw_funcs_t |
| +hb_draw_funcs_create() |
| +hb_draw_funcs_reference() |
| +hb_draw_funcs_destroy() |
| +hb_draw_funcs_is_immutable() |
| +hb_draw_funcs_make_immutable() |
| +hb_draw_move_to_func_t |
| +hb_draw_funcs_set_move_to_func() |
| +hb_draw_line_to_func_t |
| +hb_draw_funcs_set_line_to_func() |
| +hb_draw_quadratic_to_func_t |
| +hb_draw_funcs_set_quadratic_to_func() |
| +hb_draw_cubic_to_func_t |
| +hb_draw_funcs_set_cubic_to_func() |
| +hb_draw_close_path_func_t |
| +hb_draw_funcs_set_close_path_func() |
| +hb_draw_state_t |
| +HB_DRAW_STATE_DEFAULT |
| +hb_draw_move_to() |
| +hb_draw_line_to() |
| +hb_draw_quadratic_to() |
| +hb_draw_cubic_to() |
| +hb_draw_close_path() |
| +hb_font_get_glyph_shape_func_t |
| +hb_font_funcs_set_glyph_shape_func() |
| +hb_font_get_glyph_shape() |
| |
| - OpenType layout |
| +HB_OT_LAYOUT_BASELINE_TAG_IDEO_FACE_CENTRAL |
| +HB_OT_LAYOUT_BASELINE_TAG_IDEO_EMBOX_CENTRAL |
| +hb_ot_layout_get_horizontal_baseline_tag_for_script() |
| +hb_ot_layout_get_baseline_with_fallback() |
| |
| - Metrics: |
| +hb_ot_metrics_get_position_with_fallback() |
| |
| - Subset: |
| +hb_subset_plan_t |
| +hb_subset_plan_create_or_fail() |
| +hb_subset_plan_reference() |
| +hb_subset_plan_destroy() |
| +hb_subset_plan_set_user_data() |
| +hb_subset_plan_get_user_data() |
| +hb_subset_plan_execute_or_fail() |
| +hb_subset_plan_unicode_to_old_glyph_mapping() |
| +hb_subset_plan_new_to_old_glyph_mapping() |
| +hb_subset_plan_old_to_new_glyph_mapping() |
| |
| |
| Overview of changes leading to 3.4.0 |
| Sunday, February 13, 2022 |
| ==================================== |
| - Perform sanity checks on shaping results is now part of “harfbuzz” library |
| and can be enabled by setting the buffer flag HB_BUFFER_FLAG_VERIFY. |
| (Behdad Esfahbod) |
| - Arabic Mark Transient Reordering Algorithm have been updated to revision 6. |
| (Khaled Hosny) |
| - ISO 15924 code for mathematical notation, ‘Zmth’, now maps to the OpenType |
| ‘math’ tag. (Alexis King) |
| - It is now possible to get at once all math kerning values for a given glyph |
| at a given corner. (Alexis King) |
| - Fix locale_t portability issues on systems the typedef’s it to a void |
| pointer. (Behdad Esfahbod) |
| |
| - New API: |
| +HB_BUFFER_FLAG_VERIFY |
| +HB_OT_TAG_MATH_SCRIPT |
| +HB_SCRIPT_MATH |
| +hb_ot_math_kern_entry_t |
| +hb_ot_math_get_glyph_kernings() |
| |
| - Deprecated API |
| +HB_OT_MATH_SCRIPT |
| |
| |
| Overview of changes leading to 3.3.2 |
| Sunday, February 6, 2022 |
| ==================================== |
| - Revert splitting of pair positioning values introduced in 3.3.0 as it proved |
| problematic. (Behdad Esfahbod) |
| |
| |
| Overview of changes leading to 3.3.1 |
| Monday, January 31, 2022 |
| ==================================== |
| - Fix heap-use-after-free in harfbuzz-subset introduced in previous release. |
| (Garret Rieger) |
| |
| |
| Overview of changes leading to 3.3.0 |
| Monday, January 31, 2022 |
| ==================================== |
| - Improved documentation. (Matthias Clasen) |
| - Internal code cleanup, using C++ standard library more. (Behdad Esfahbod) |
| - The low 16-bits of face index will be used by hb_face_create() to select a |
| face inside a font collection file format, while the high 16-bits will be |
| used by hb_font_create() to load the named instance. (Behdad Esfahbod) |
| - Glyph positions and other font metrics now apply synthetic slant set by |
| hb_font_set_synthetic_slant(), for improved positioning for synthetically |
| slanted fonts. (Behdad Esfahbod) |
| - Fixed unintentional locale dependency in hb_variation_to_string() for decimal |
| point representation. (Matthias Clasen) |
| - When applying pair positioning (kerning) the positioning value is split |
| between the two sides of the pair for improved cursor positioning between |
| such pairs. (Behdad Esfahbod) |
| - Introduced new HB_GLYPH_FLAG_UNSAFE_TO_CONCAT, to be used in conjunction |
| with HB_GLYPH_FLAG_UNSAFE_TO_BREAK for optimizing re-shaping during line |
| breaking. Check the documentation for further details. (Behdad Esfahbod) |
| - Improved handling of macrolanguages when mapping BCP 47 codes to OpenType |
| tags. (David Corbett) |
| |
| - New API: |
| +HB_GLYPH_FLAG_UNSAFE_TO_CONCAT |
| +hb_segment_properties_overlay() |
| +hb_buffer_create_similar() |
| +hb_font_set_synthetic_slant() |
| +hb_font_get_synthetic_slant() |
| +hb_font_get_var_coords_design() |
| |
| |
| Overview of changes leading to 3.2.0 |
| Friday, November 26, 2021 |
| ==================================== |
| “harfbuzz” library improvements: |
| - Fixed shaping of Apple Color Emoji flags in right-to-left context. (Behdad Esfahbod) |
| - Fixed positioning of CFF fonts in HB_TINY profile. (Behdad Esfahbod) |
| - OpenType 1.9 language tags update. (David Corbett) |
| - Add HB_NO_VERTICAL config option. |
| - Add HB_CONFIG_OVERRIDE_H for easier configuration. (Behdad Esfahbod) |
| |
| “harfbuzz-subset” library improvements: |
| - Improved packing of cmap, loca, and Ligature tables. (Garret Rieger) |
| - Significantly improved overflow-resolution strategy in the repacker. (Garret Rieger) |
| |
| |
| Overview of changes leading to 3.1.2 |
| Friday, November 26, 2021 |
| ==================================== |
| - hb-shape / hb-view: revert treating text on the commandline as single |
| paragraph (was introduced in 3.0.0); add new --single-par to do that. |
| (Behdad Esfahbod) |
| - Subsetter bug fixes. (Garret Rieger, Qunxin Liu, Behdad Esfahbod) |
| |
| |
| Overview of changes leading to 3.1.1 |
| Wednesday, November 8, 2021 |
| ==================================== |
| - Work around GCC cast-align error/warning on some platforms. (Behdad Esfahbod) |
| - Documentation improvements. (Matthias Clasen) |
| |
| |
| Overview of changes leading to 3.1.0 |
| Wednesday, November 3, 2021 |
| ==================================== |
| - Better offset-overflow handling in the subsetter library. (Garret Rieger) |
| - Improved Unicode 14 properties in the USE shaper, and various other USE |
| shaper fixes. (David Corbett) |
| - MATH and COLR v1 tables subsetting support, and various other subsetter fixes. |
| (Qunxin Liu) |
| - Support for Pwo Karen / Ason Chin medial la. (Simon Cozens) |
| - Apply GPOS positioning when substituting with morx table, if kerx is missing. |
| (Behdad Esfahbod) |
| - Apply calt and clig features across syllable boundaries in Indic shaper. |
| (Behdad Esfahbod) |
| - meson option for enabling Graphite 2 has been renamed to graphite2. |
| - Build and documentation fixes. |
| |
| - New API: |
| +hb_buffer_set_not_found_glyph() |
| +hb_buffer_get_not_found_glyph() |
| |
| |
| Overview of changes leading to 3.0.0 |
| Friday, September 17, 2021 |
| ==================================== |
| - Unicode 14.0 support (David Corbett). |
| - The hb-subset API and the harfbuzz-subset library's ABI are now declared |
| stable. The harfbuzz-subset library would not have been possible without the |
| work of Garret Rieger and Qunxin Liu from Google Fonts, and the earlier work |
| of Michiharu Ariza from Adobe. |
| - The hb-style API is now stable and no longer experimental. |
| |
| - New API: |
| +hb_style_tag_t |
| +hb_style_get_value() |
| +hb_subset_input_t |
| +hb_subset_flags_t |
| +hb_subset_sets_t |
| +hb_subset_input_create_or_fail() |
| +hb_subset_input_reference() |
| +hb_subset_input_destroy() |
| +hb_subset_input_set_user_data() |
| +hb_subset_input_get_user_data() |
| +hb_subset_input_unicode_set() |
| +hb_subset_input_glyph_set() |
| +hb_subset_input_set() |
| +hb_subset_input_get_flags() |
| +hb_subset_input_set_flags() |
| +hb_subset_or_fail() |
| |
| - Removed old unstable harfbuzz-subset API: |
| -hb_subset_input_nameid_set() |
| -hb_subset_input_namelangid_set() |
| -hb_subset_input_layout_features_set() |
| -hb_subset_input_no_subset_tables_set() |
| -hb_subset_input_drop_tables_set() |
| -hb_subset_input_set_drop_hints() |
| -hb_subset_input_get_drop_hints() |
| -hb_subset_input_set_desubroutinize() |
| -hb_subset_input_get_desubroutinize() |
| -hb_subset_input_set_retain_gids() |
| -hb_subset_input_get_retain_gids() |
| -hb_subset_input_set_name_legacy() |
| -hb_subset_input_get_name_legacy() |
| -hb_subset_input_set_overlaps_flag() |
| -hb_subset_input_get_overlaps_flag() |
| -hb_subset_input_set_notdef_outline() |
| -hb_subset_input_get_notdef_outline() |
| -hb_subset_input_set_no_prune_unicode_ranges() |
| -hb_subset_input_get_no_prune_unicode_ranges() |
| -hb_subset() |
| |
| |
| Overview of changes leading to 2.9.1 |
| Tuesday, September 7, 2021 |
| ==================================== |
| - Final subset API is in place and if no issues are discovered, it will be the |
| stable subset API of HarfBuzz 3.0.0. Old API is kept to ease transition, but |
| will be removed in 3.0.0. |
| - Various fuzzer-found bug fixes. |
| - hb_buffer_append() now handles the pre- and post-context which previously |
| were left unchanged in the destination buffer. |
| - hb-view / hb-shape now accept following new arguments: |
| o --unicodes-before/after: takes a list of hex numbers that represent Unicode |
| codepoints. |
| - Undeprecated API: |
| hb_set_invert() |
| |
| |
| Overview of changes leading to 2.9.0 |
| Wednesday, August 18, 2021 |
| History Repeats Itself (Afghanistan) |
| ==================================== |
| - Subsetter API is being stabilized, with the first stable API to happen in |
| 3.0.0 release (https://github.com/harfbuzz/harfbuzz/issues/3078). |
| - Support multiple variation axes with same tag, aka HOI. |
| - The “coretext” testing shaper now passes font variations to CoreText. |
| - hb-shape/hb-view does not break line at new lines unless text is read from |
| file. |
| - hb-view and hb-subset has a --batch now, similar to hb-shape. |
| - The --batch mode now uses ; as argument separator instead of : used previously. |
| - The --batch in hb-shape does not expect 0th argument anymore. That is, the |
| lines read are interpreted as argv[1:], instead of argv[0:]. |
| - The --batch option has been undocumented. We are ready to document it; send |
| feedback if you find it useful. |
| - hb-subset got arguments revamps. Added much-requested --gids-file, --glyphs, |
| --glyphs-file, --unicodes-file, supporting ranges in --unicodes. |
| - Various bug fixes. |
| |
| |
| Overview of changes leading to 2.8.2 |
| Tuesday, July 8, 2021 |
| ==================================== |
| - Shaping LTR digits for RTL scripts now makes the native direction of the |
| digits LTR, applying shaping and positioning rules on the same glyph order as |
| Uniscribe. (Jonathan Kew, Khaled Hosny). |
| - Subsetting COLR v1 and CPAL tables is now supported. (Garret Rieger, Qunxin Liu) |
| - Various fixes and improvements to the subsetter. (Garret Rieger, Qunxin Liu, Behdad) |
| - When applying morx table, mark glyph widths should not be zeroed. (Jonathan Kew) |
| - GPOS is preferred over kerx, if GSUB was applied. (Behdad) |
| - Regional_Indicator pairs are grouped together when clustering. (Behdad) |
| - New API: |
| +hb_blob_create_or_fail() |
| +hb_blob_create_from_file_or_fail() |
| +hb_set_copy() |
| |
| |
| Overview of changes leading to 2.8.1 |
| Tuesday, May 4, 2021 |
| ==================================== |
| - Subsetter now fully supports GSUB/GPOS/GDEF tables (including variations); as |
| such, layout tables are retained by subsetter by default. (Garret Rieger, Qunxin Liu) |
| - Build scripts no longer check for FontConfig as HarfBuzz does not use it. |
| - hb-view supports iTerm2 and kitty inline image protocols (Khaled Hosny), |
| it can also use Chafa for terminal graphics if available (Hans Petter Jansson). |
| |
| Overview of changes leading to 2.8.0 |
| Tuesday, March 16, 2021 |
| ==================================== |
| - Shape joining scripts other than Arabic/Syriac using the Universal Shaping Engine. |
| Previously these were shaped using the generalized Arabic shaper. (David Corbett) |
| - Fix regression in shaping of U+0B55 ORIYA SIGN OVERLINE. (David Corbett) |
| - Update language tags. (David Corbett) |
| - Variations: reduce error: do not round each interpolated delta. (Just van Rossum) |
| - Documentation improvements. (Khaled Hosny, Nathan Willis) |
| - Subsetter improvements: subsets most, if not all, lookup types now. (Garret Rieger, Qunxin Liu) |
| - Fuzzer-found fixes and other improvements when memory failures happen. (Behdad) |
| - Removed most atomic implementations now that we have C++11 atomic impl. (Behdad) |
| - General codebase upkeep; using more C++11 features: constexpr constructors, etc. (Behdad) |
| |
| |
| Overview of changes leading to 2.7.4 |
| Sunday, December 27, 2020 |
| ==================================== |
| - Fix missing --enable-introspection configure option from previous release |
| tarball. |
| - Documentation updates. |
| |
| |
| Overview of changes leading to 2.7.3 |
| Wednesday, December 23, 2020 |
| ==================================== |
| - Update USE shaper to 2020-08-13 specification, and other improvements. |
| - Don’t disable liga feature in myanmar shaper, to match Uniscribe. |
| - Improvements to language and script tags handling. |
| - Update language system tag registry to OpenType 1.8.4 |
| - Support for serializing and deserializing Unicode buffers. Serialized buffers |
| are now delimited with `<>` or `[]` based on whether it is a Unicode or |
| glyphs buffer. |
| - Increase buffer work limits to handle fonts with many complex lookups. |
| - Handle more shaping operations in trace output. |
| - Memory access fixes. |
| - More OOM fixes. |
| - Improved documentation. |
| - Build system improvements. |
| - New API: |
| +hb_buffer_has_positions() |
| +hb_buffer_serialize() |
| +hb_buffer_serialize_unicode() |
| +hb_buffer_deserialize_unicode() |
| |
| |
| Overview of changes leading to 2.7.2 |
| Saturday, August 29, 2020 |
| ==================================== |
| - Fix a regression in the previous release that caused a crash with Kaithi. |
| - More OOM fixes. |
| |
| |
| Overview of changes leading to 2.7.1 |
| Thursday, August 13, 2020 |
| ==================================== |
| - ot-funcs now handles variable empty glyphs better when hvar/vvar isn't present. |
| - Reverted a GDEF processing regression. |
| - A couple of fixes to handle OOM better. |
| |
| |
| Overview of changes leading to 2.7.0 |
| Saturday, July 25, 2020 |
| ==================================== |
| - Use an implementation for round that always rounds up, some minor fluctuations |
| are expected on var font specially when hb-ot callback is used. |
| - Fix an AAT's `kerx` issue on broken rendering of Devanagari Sangam MN. |
| - Remove AAT's `lcar` table support from _get_ligature_carets API, not even much |
| use on macOS installed fonts (only two files). GDEF support is the recommended |
| one and expected to work properly after issues fixed two releases ago. |
| - Minor memory fixes to handle OOM better specially in hb-ft. |
| - Minor .so files versioning scheme change and remove stable/unstable scheme |
| differences, was never used in practice (always default to stable scheme). |
| - We are now suggesting careful packaging of the library using meson, |
| https://github.com/harfbuzz/harfbuzz/wiki/Notes-on-migration-to-meson |
| for more information. |
| - Distribution package URL is changed, either use GitHub generated tarballs, |
| `https://github.com/harfbuzz/harfbuzz/archive/$pkgver.tar.gz` |
| or, even more preferably use commit hash of the release and git checkouts like, |
| `git+https://github.com/harfbuzz/harfbuzz#commit=$commit` |
| |
| |
| Overview of changes leading to 2.6.8 |
| Monday, June 22, 2020 |
| ==================================== |
| - New API to fetch glyph alternates from GSUB table. |
| - hb-coretext build fix for macOS < 10.10. |
| - Meson build fixes, cmake port removal is postponed but please prepare for |
| it and give us feedback. |
| Autotools is still our main build system however please consider |
| experimenting with meson also for packaging the library. |
| - New API: |
| +hb_ot_layout_lookup_get_glyph_alternates() |
| |
| |
| Overview of changes leading to 2.6.7 |
| Wednesday, June 3, 2020 |
| ==================================== |
| - Update to Unicode 13.0.0. |
| - Fix hb_ot_layout_get_ligature_carets for fonts without lcar table, it was |
| completely broken for all the other fonts since 2.1.2. |
| - As a part of our migration to meson, this release will be the last one |
| to provide cmake port files but autotools still is our main build system. |
| There is a possibility that the next version or the after be released |
| using meson. |
| |
| |
| Overview of changes leading to 2.6.6 |
| Tuesday, May 12, 2020 |
| ==================================== |
| - A fix in AAT kerning for Geeza Pro. |
| - Better support for resource fork fonts on macOS. |
| |
| |
| Overview of changes leading to 2.6.5 |
| Friday, April 17, 2020 |
| ==================================== |
| - Add experimental meson build system. Autotools is still the primary |
| and supported build system. |
| - AAT is now always preferred for horizontal scripts when both AAT and OT |
| layout tables exist at the same time. |
| - Subsetter improvements. |
| - New API: |
| +hb_ft_font_lock_face() |
| +hb_ft_font_unlock_face() |
| |
| |
| Overview of changes leading to 2.6.4 |
| Monday, October 29, 2019 |
| ==================================== |
| - Small bug fix. |
| - Build fixes. |
| |
| |
| Overview of changes leading to 2.6.3 |
| Monday, October 28, 2019 |
| ==================================== |
| - Misc small fixes, mostly to build-related issues. |
| - New API: |
| +hb_font_get_nominal_glyphs() |
| |
| |
| Overview of changes leading to 2.6.2 |
| Monday, September 30, 2019 |
| ==================================== |
| - Misc small fixes, mostly to build-related issues. |
| |
| |
| Overview of changes leading to 2.6.1 |
| Thursday, August 22, 2019 |
| ==================================== |
| - Fix regression with hb_font_create_sub_font scaling introduced in 2.6.0. |
| - Change interpretation of font PTEM size / CoreText font size handling. |
| See https://github.com/harfbuzz/harfbuzz/pull/1484 |
| - hb-ot-font: Prefer symbol cmap subtable if present. |
| - Apply 'dist'/'abvm'/'blwm' features to all scripts. |
| - Drop experimental DirectWrite API. |
| |
| |
| Overview of changes leading to 2.6.0 |
| Tuesday, August 13, 2019 |
| ==================================== |
| - New OpenType metrics, baseline, and metadata table access APIs. |
| - New API to set font variations to a named-instance. |
| - New hb-gdi.h header and API for creating hb_face_t from HFONT. |
| - Amalgam: Provide a single-file harfbuzz.cc file for easier alternate building. |
| - More size-reduction configurable options, enabled by HB_TINY. |
| - New API: |
| +hb_font_set_var_named_instance() |
| +hb_gdi_face_create() |
| +hb_ot_layout_baseline_tag_t |
| +hb_ot_layout_get_baseline() |
| +hb_ot_meta_tag_t |
| +hb_ot_meta_get_entry_tags() |
| +hb_ot_meta_reference_entry() |
| +hb_ot_metrics_tag_t |
| +hb_ot_metrics_get_position() |
| +hb_ot_metrics_get_variation() |
| +hb_ot_metrics_get_x_variation() |
| +hb_ot_metrics_get_y_variation() |
| |
| |
| Overview of changes leading to 2.5.3 |
| Wednesday, June 26, 2019 |
| ==================================== |
| - Fix UCD script data for Unicode 10+ scripts. This was broken since 2.5.0. |
| - More optimizations for HB_TINY. |
| |
| |
| Overview of changes leading to 2.5.2 |
| Thursday, June 20, 2019 |
| ==================================== |
| - More hb-config.hh facilities to shrink library size, namely when built as |
| HB_TINY. |
| - New documentation of custom configurations in CONFIG.md. |
| - Fix build on gcc 4.8. That's supported again. |
| - Universal Shaping Engine improvements thanks to David Corbett. |
| - API Changes: Undeprecate some horizontal-kerning API and re-enable in hb-ft, |
| such that Type1 fonts will continue kerning. |
| |
| |
| Overview of changes leading to 2.5.1 |
| Friday, May 31, 2019 |
| ==================================== |
| - Fix build with various versions of Visual Studio. |
| - Improved documentation, thanks to Nathan Willis. |
| - Bugfix in subsetting glyf table. |
| - Improved scripts for cross-compiling for Windows using mingw. |
| - Rename HB_MATH_GLYPH_PART_FLAG_EXTENDER to HB_OT_MATH_GLYPH_PART_FLAG_EXTENDER. |
| A deprecated macro is added for backwards-compatibility. |
| |
| |
| Overview of changes leading to 2.5.0 |
| Friday, May 24, 2019 |
| ==================================== |
| - This release does not include much functional changes, but includes major internal |
| code-base changes. We now require C++11. Support for gcc 4.8 and earlier has been |
| dropped. |
| - New hb-config.hh facility for compiling smaller library for embedded and web usecases. |
| - New Unicode Character Database implementation that is half the size of previously-used |
| UCDN. |
| - Subsetter improvements. |
| - Improved documentation, thanks to Nathan Willis. |
| - Misc shaping fixes. |
| |
| |
| Overview of changes leading to 2.4.0 |
| Monday, March 25, 2019 |
| ==================================== |
| - Unicode 12. |
| - Misc fixes. |
| - Subsetter improvements. |
| - New API: |
| HB_BUFFER_FLAG_DO_NOT_INSERT_DOTTED_CIRCLE |
| hb_directwrite_face_create() |
| |
| |
| Overview of changes leading to 2.3.1 |
| Wednesday, January 30, 2019 |
| ==================================== |
| - AAT bug fixes. |
| - Misc internal housekeeping cleanup. |
| |
| |
| Overview of changes leading to 2.3.0 |
| Thursday, December 20, 2018 |
| ==================================== |
| - Fix regression on big-endian architectures. Ouch! |
| - Misc bug and build fixes. |
| - Fix subsetting of simple GSUB/GDEF. |
| - Merge CFF / CFF2 support contributed by Adobe. This mostly involves |
| the subsetter, but also get_glyph_extents on CFF fonts. |
| |
| New API in hb-aat.h: |
| +hb_aat_layout_has_substitution() |
| +hb_aat_layout_has_positioning() |
| +hb_aat_layout_has_tracking() |
| |
| |
| Overview of changes leading to 2.2.0 |
| Thursday, November 29, 2018 |
| ==================================== |
| - Misc shaping bug fixes. |
| - Add font variations named-instance API. |
| - Deprecate font variations axis enumeration API and add replacement. |
| - AAT shaping improvements: |
| o Fixed 'kern' table Format 2 implementation. |
| o Implement 'feat' table API for feature detection. |
| o Blacklist 'GSUB' table of fonts from 'MUTF' foundry that also have 'morx'. |
| |
| New API: |
| +hb_aat_layout_feature_type_t |
| +hb_aat_layout_feature_selector_t |
| +hb_aat_layout_get_feature_types() |
| +hb_aat_layout_feature_type_get_name_id |
| +hb_aat_layout_feature_selector_info_t |
| +HB_AAT_LAYOUT_NO_SELECTOR_INDEX |
| +hb_aat_layout_feature_type_get_selector_infos() |
| +hb_ot_var_axis_flags_t |
| +hb_ot_var_axis_info_t |
| +hb_ot_var_get_axis_infos() |
| +hb_ot_var_find_axis_info() |
| +hb_ot_var_get_named_instance_count() |
| +hb_ot_var_named_instance_get_subfamily_name_id() |
| +hb_ot_var_named_instance_get_postscript_name_id() |
| +hb_ot_var_named_instance_get_design_coords() |
| |
| Deprecated API: |
| +HB_OT_VAR_NO_AXIS_INDEX |
| +hb_ot_var_axis_t |
| +hb_ot_var_get_axes() |
| +hb_ot_var_find_axis() |
| |
| |
| Overview of changes leading to 2.1.3 |
| Friday, November 16, 2018 |
| ==================================== |
| - Fix AAT 'mort' shaping, which was broken in 2.1.2 |
| |
| |
| Overview of changes leading to 2.1.2 |
| Friday, November 16, 2018 |
| ==================================== |
| - Various internal changes. |
| - AAT shaping improvements: |
| o Implement kern table Format 1 state-machine-based kerning. |
| o Implement cross-stream kerning (cursive positioning, etc). |
| o Ignore emptyish GSUB tables (zero scripts) if morx present. |
| o Don't apply GPOS if morx is being applied. Matches Apple. |
| |
| |
| -Overview of changes leading to 2.1.1 |
| Monday, November 5, 2018 |
| ==================================== |
| - AAT improvements: |
| o Implement 'mort' table. |
| o Implement 'kern' subtables Format 1 and Format 3. |
| |
| |
| Overview of changes leading to 2.1.0 |
| Tuesday, October 30, 2018 |
| ==================================== |
| - AAT shaping improvements: |
| o Allow user controlling AAT features, for whole buffer only currently. |
| o Several 'morx' fixes. |
| o Implement tuple-kerns in 'kerx'; Fixes kerning with Apple default |
| San Francisco fonts. |
| - Support for color fonts: |
| o COLR/CPAL API to fetch color layers. |
| o SVG table to fetch SVG documents. |
| o CBDT/sbix API to fetch PNG images. |
| - New 'name' table API. |
| - hb-ot-font now uses 'VORG' table to correctly position CFF glyphs |
| in vertical layout. |
| - Various fuzzer-found bug fixes. |
| |
| Changed API: |
| |
| A type and a macro added in 2.0.0 were renamed: |
| |
| hb_name_id_t -> hb_ot_name_id_t |
| HB_NAME_ID_INVALID -> HB_OT_NAME_ID_INVALID |
| |
| New API: |
| |
| +hb_color_t |
| +HB_COLOR |
| +hb_color_get_alpha() |
| +hb_color_get_red() |
| +hb_color_get_green() |
| +hb_color_get_blue() |
| +hb_ot_color_has_palettes() |
| +hb_ot_color_palette_get_count() |
| +hb_ot_color_palette_get_name_id() |
| +hb_ot_color_palette_color_get_name_id() |
| +hb_ot_color_palette_flags_t |
| +hb_ot_color_palette_get_flags() |
| +hb_ot_color_palette_get_colors() |
| +hb_ot_color_has_layers() |
| +hb_ot_color_layer_t |
| +hb_ot_color_glyph_get_layers() |
| +hb_ot_color_has_svg() |
| +hb_ot_color_glyph_reference_svg() |
| +hb_ot_color_has_png() |
| +hb_ot_color_glyph_reference_png() |
| |
| +hb_ot_name_id_t |
| +HB_OT_NAME_ID_INVALID |
| +HB_OT_NAME_ID_COPYRIGHT |
| +HB_OT_NAME_ID_FONT_FAMILY |
| +HB_OT_NAME_ID_FONT_SUBFAMILY |
| +HB_OT_NAME_ID_UNIQUE_ID |
| +HB_OT_NAME_ID_FULL_NAME |
| +HB_OT_NAME_ID_VERSION_STRING |
| +HB_OT_NAME_ID_POSTSCRIPT_NAME |
| +HB_OT_NAME_ID_TRADEMARK |
| +HB_OT_NAME_ID_MANUFACTURER |
| +HB_OT_NAME_ID_DESIGNER |
| +HB_OT_NAME_ID_DESCRIPTION |
| +HB_OT_NAME_ID_VENDOR_URL |
| +HB_OT_NAME_ID_DESIGNER_URL |
| +HB_OT_NAME_ID_LICENSE |
| +HB_OT_NAME_ID_LICENSE_URL |
| +HB_OT_NAME_ID_TYPOGRAPHIC_FAMILY |
| +HB_OT_NAME_ID_TYPOGRAPHIC_SUBFAMILY |
| +HB_OT_NAME_ID_MAC_FULL_NAME |
| +HB_OT_NAME_ID_SAMPLE_TEXT |
| +HB_OT_NAME_ID_CID_FINDFONT_NAME |
| +HB_OT_NAME_ID_WWS_FAMILY |
| +HB_OT_NAME_ID_WWS_SUBFAMILY |
| +HB_OT_NAME_ID_LIGHT_BACKGROUND |
| +HB_OT_NAME_ID_DARK_BACKGROUND |
| +HB_OT_NAME_ID_VARIATIONS_PS_PREFIX |
| +hb_ot_name_entry_t |
| +hb_ot_name_list_names() |
| +hb_ot_name_get_utf8() |
| +hb_ot_name_get_utf16() |
| +hb_ot_name_get_utf32() |
| |
| |
| Overview of changes leading to 2.0.2 |
| Saturday, October 20, 2018 |
| ==================================== |
| - Fix two minor memory access issues in AAT tables. |
| |
| |
| Overview of changes leading to 2.0.1 |
| Friday, October 19, 2018 |
| ==================================== |
| - Fix hb-version.h reported release version that went wrong (1.8.0) |
| with previous release. |
| - Fix extrapolation in 'trak' table. |
| - Fix hb-font infinite-recursion issue with some font funcs and |
| subclassed fonts. |
| - Implement variation-kerning format in kerx table, although without |
| variation. |
| - Fix return value of hb_map_is_empty(). |
| |
| |
| Overview of changes leading to 2.0.0 |
| Thursday, October 18, 2018 |
| ==================================== |
| - Added AAT shaping support (morx/kerx/trak). |
| Automatically used if GSUB/GPOS are not available respectively. |
| Set HB_OPTIONS=aat env var to have morx/kerx preferred over |
| GSUB/GPOS. |
| - Apply TrueType kern table internally, instead of relying on |
| hb_font_t callbacks. |
| - Khmer shaper significantly rewritten to better match Uniscribe. |
| - Indic3 tags ('dev3', etc) are passed to USE shaper. |
| - .dfont Mac font containers implemented. |
| - Script- and language-mapping revamped to better use BCP 47. |
| - Misc USE and Indic fixes. |
| - Misc everything fixes. |
| - Too many things to list. Biggest release since 0.9.1, with |
| over 500 commits in just over 5 weeks! Didn't intend it to |
| be a big release. Just happened to become. |
| - hb-ft now locks underlying FT_Face during use. |
| |
| API changes: |
| |
| - Newly-created hb_font_t's now have our internal "hb-ot-font" |
| callbacks set on them, so they should work out of the box |
| without any callbacks set. If callbacks are set, everything |
| is back to what it was before, the fallback callbacks are |
| null. If you to get the internal implementation modified, |
| sub_font it. |
| |
| - New hb_font_funcs_set_nominal_glyphs_func() allows speeding |
| up character to glyph mapping. |
| |
| New API: |
| +HB_FEATURE_GLOBAL_START |
| +HB_FEATURE_GLOBAL_END |
| +hb_buffer_set_invisible_glyph() |
| +hb_buffer_get_invisible_glyph() |
| +hb_font_funcs_set_nominal_glyphs_func() |
| +hb_ot_layout_table_select_script() |
| +hb_ot_layout_script_select_language() |
| +hb_ot_layout_feature_get_name_ids() |
| +hb_ot_layout_feature_get_characters() |
| +hb_name_id_t |
| +HB_NAME_ID_INVALID |
| +HB_OT_MAX_TAGS_PER_SCRIPT |
| +hb_ot_tags_from_script_and_language() |
| +hb_ot_tags_to_script_and_language() |
| |
| Deprecated API: |
| -hb_font_funcs_set_glyph_func() |
| -hb_unicode_eastasian_width_func_t |
| -hb_unicode_funcs_set_eastasian_width_func() |
| -hb_unicode_eastasian_width() |
| -hb_unicode_decompose_compatibility_func_t |
| -HB_UNICODE_MAX_DECOMPOSITION_LEN |
| -hb_unicode_funcs_set_decompose_compatibility_func() |
| -hb_unicode_decompose_compatibility() |
| -hb_font_funcs_set_glyph_h_kerning_func() |
| -hb_font_funcs_set_glyph_v_kerning_func() |
| -hb_font_get_glyph_h_kerning() |
| -hb_font_get_glyph_v_kerning() |
| -hb_font_get_glyph_kerning_for_direction() |
| -hb_ot_layout_table_choose_script() |
| -hb_ot_layout_script_find_language() |
| -hb_ot_tags_from_script() |
| -hb_ot_tag_from_language() |
| |
| |
| Overview of changes leading to 1.9.0 |
| Monday, September 10, 2018 |
| ==================================== |
| - Added 'cmap' API to hb_face_t. |
| - Face-builder API. |
| - hb-ot-font re-creation should be much leaner now, as the |
| font tables it uses are cached on hb_face_t now. |
| - Internal source header file name changes: |
| hb-*-private.hh is renamed to hb-*.hh. |
| |
| New API: |
| +HB_UNICODE_MAX |
| +hb_face_collect_unicodes() |
| +hb_face_collect_variation_selectors() |
| +hb_face_collect_variation_unicodes() |
| +hb_face_builder_create() |
| +hb_face_builder_add_table() |
| |
| |
| Overview of changes leading to 1.8.8 |
| Tuesday, August 14, 2018 |
| ==================================== |
| - Fix hb-icu crash on architectures where compare_exchange_weak() can |
| fail falsely. This bug was introduced in 1.8.4. |
| https://bugs.chromium.org/p/chromium/issues/detail?id=873568 |
| - More internal refactoring of atomic operations and singletons. |
| - API changes: |
| The following functions do NOT reference their return value before |
| returning: |
| * hb_unicode_funcs_get_default() |
| * hb_glib_get_unicode_funcs() |
| * hb_icu_get_unicode_funcs() |
| This is consistent with their naming ("get", instead of "reference") |
| as well as how they are used in the wild (ie. no one calls destroy() |
| on their return value.) |
| |
| |
| Overview of changes leading to 1.8.7 |
| Wednesday, August 8, 2018 |
| ==================================== |
| - Fix assertion failure with GDEF-blacklisted fonts. |
| |
| |
| Overview of changes leading to 1.8.6 |
| Tuesday, August 7, 2018 |
| ==================================== |
| - Internal code shuffling. |
| - New API to speed up getting advance widths for implementations |
| that have heavy overhead in get_h_advance callback: |
| +hb_font_funcs_set_glyph_h_advances_func |
| +hb_font_funcs_set_glyph_v_advances_func |
| +hb_font_get_glyph_advances_for_direction |
| +hb_font_get_glyph_h_advances |
| +hb_font_get_glyph_h_advances_func_t |
| +hb_font_get_glyph_v_advances |
| +hb_font_get_glyph_v_advances_func_t |
| |
| |
| Overview of changes leading to 1.8.5 |
| Wednesday, August 1, 2018 |
| ==================================== |
| - Major Khmer shaper improvements to better match Microsoft. |
| - Indic bug fixes. |
| - Internal improvements to atomic operations. |
| |
| |
| Overview of changes leading to 1.8.4 |
| Tuesday, July 17, 2018 |
| ==================================== |
| - Fix build on non-C++11. |
| - Use C++-style GCC atomics and C++11 atomics. |
| |
| |
| Overview of changes leading to 1.8.3 |
| Wednesday, July 11, 2018 |
| ==================================== |
| - A couple of Indic / USE bug fixes. |
| - Disable vectorization, as it was causing unaligned access bus error on |
| certain 32bit architectures. |
| |
| |
| Overview of changes leading to 1.8.2 |
| Tuesday, July 3, 2018 |
| ==================================== |
| - Fix infinite loop in Khmer shaper. |
| - Improve hb_blob_create_from_file() for streams. |
| |
| |
| Overview of changes leading to 1.8.1 |
| Tuesday, June 12, 2018 |
| ==================================== |
| - Fix hb-version.h file generation; last two releases went out with wrong ones. |
| - Add correctness bug in hb_set_t operations, introduced in 1.7.7. |
| - Remove HB_SUBSET_BUILTIN build option. Not necessary. |
| |
| |
| Overview of changes leading to 1.8.0 |
| Tuesday, June 5, 2018 |
| ==================================== |
| - Update to Unicode 11.0.0. |
| |
| |
| Overview of changes leading to 1.7.7 |
| Tuesday, June 5, 2018 |
| ==================================== |
| - Lots of internal changes, but not yet exposed externally. |
| - All HarfBuzz objects are significantly smaller in size now. |
| - Sinhala: Position repha on top of post-consonant, not base. |
| This better matches Windows 10 behavior, which was changed |
| from previous Windows versions. |
| - New build options: |
| o New cpp macro HB_NO_ATEXIT |
| o New cpp macro HB_SUBSET_BUILTIN |
| - Significant libharfbuzz-subset changes. API subject to change. |
| - New API in libharfbuzz: |
| |
| +hb_blob_create_from_file() |
| +hb_face_count() |
| |
| A hashmap implementation: |
| +hb-map.h |
| +HB_MAP_VALUE_INVALID |
| +hb_map_t |
| +hb_map_create() |
| +hb_map_get_empty() |
| +hb_map_reference() |
| +hb_map_destroy() |
| +hb_map_set_user_data() |
| +hb_map_get_user_data() |
| +hb_map_allocation_successful() |
| +hb_map_clear() |
| +hb_map_is_empty() |
| +hb_map_get_population() |
| +hb_map_set() |
| +hb_map_get() |
| +hb_map_del() |
| +hb_map_has() |
| |
| |
| Overview of changes leading to 1.7.6 |
| Wednesday, March 7, 2018 |
| ==================================== |
| |
| - Fix to hb_set_t binary operations. Ouch. |
| - New experimental harfbuzz-subset library. All of hb-subset.h |
| is experimental right now and API WILL change. |
| |
| - New API: |
| hb_blob_copy_writable_or_fail() |
| HB_OT_TAG_BASE |
| hb_set_previous() |
| hb_set_previous_range() |
| |
| |
| Overview of changes leading to 1.7.5 |
| Tuesday, January 30, 2018 |
| ==================================== |
| |
| - Separate Khmer shaper from Indic. |
| - First stab at AAT morx. Not hooked up. |
| - Misc bug fixes. |
| |
| |
| Overview of changes leading to 1.7.4 |
| Wednesday, December 20, 2017 |
| ==================================== |
| |
| - Fix collect_glyphs() regression caused by hb_set_t changes. |
| |
| |
| Overview of changes leading to 1.7.3 |
| Monday, December 18, 2017 |
| ==================================== |
| |
| - hb_set_t performance tuning and optimizations. |
| - Speed up collect_glyphs() and reject garbage data. |
| - In hb_coretext_font_create() set font point-size (ptem). |
| - Misc fixes. |
| |
| |
| Overview of changes leading to 1.7.2 |
| Monday, December 4, 2017 |
| ==================================== |
| |
| - Optimize hb_set_add_range(). |
| - Misc fixes. |
| - New API: |
| hb_coretext_font_create() |
| |
| |
| Overview of changes leading to 1.7.1 |
| Tuesday, November 14, 2017 |
| ==================================== |
| |
| - Fix atexit object destruction regression. |
| - Fix minor integer-overflow. |
| |
| |
| Overview of changes leading to 1.7.0 |
| Monday, November 13, 2017 |
| ==================================== |
| |
| - Minor Indic fixes. |
| - Implement kerning and glyph names in hb-ot-font. |
| - Various DSO optimization re .data and .bss sizes. |
| - Make C++11 optional; build fixes. |
| - Mark all other backends "unsafe-to-break". |
| - Graphite fix. |
| |
| |
| Overview of changes leading to 1.6.3 |
| Thursday, October 26th, 2017 |
| ==================================== |
| |
| - Fix hb_set_t some more. Should be solid now. |
| - Implement get_glyph_name() for hb-ot-font. |
| - Misc fixes. |
| |
| |
| Overview of changes leading to 1.6.2 |
| Monday, October 23nd, 2017 |
| ==================================== |
| |
| - Yesterday's release had a bad crasher; don't use it. That's what |
| happens when one works on Sunday... |
| https://github.com/harfbuzz/harfbuzz/issues/578 |
| - Build fixes for FreeBSD and Chrome Android. |
| |
| |
| Overview of changes leading to 1.6.1 |
| Sunday, October 22nd, 2017 |
| ==================================== |
| |
| - Don't skip over COMBINING GRAPHEME JOINER when ligating, etc. |
| To be refined: https://github.com/harfbuzz/harfbuzz/issues/554 |
| - Faster hb_set_t implementation. |
| - Don't use deprecated ICU API. |
| - Fix undefined-behavior in Myanmar shaper, introduced in 1.6.0 |
| - Deprecated API: |
| hb_set_invert() |
| |
| |
| Overview of changes leading to 1.6.0 |
| Friday, October the 13th, 2017 |
| ==================================== |
| |
| - Update to Unicode 10. |
| |
| - Various Indic and Universal Shaping Engine fixes as a result of |
| HarfBuzz Hackfest with Jonathan Kew at Web Engines Hackfest at |
| the Igalia offices in A Coruña, Spain. Thanks Igalia for having |
| us! |
| |
| - Implement Unicode Arabic Mark Ordering Algorithm UTR#53. |
| |
| - Implement optical sizing / tracking in CoreText backend, using |
| new API hb_font_set_ptem(). |
| |
| - Allow notifying hb_font_t that underlying FT_Face changed sizing, |
| using new API hb_ft_font_changed(). |
| |
| - More Graphite backend RTL fixes. |
| |
| - Fix caching of variable font shaping plans. |
| |
| - hb-view / hb-shape now accept following new arguments: |
| |
| o --unicodes: takes a list of hex numbers that represent Unicode |
| codepoints. |
| |
| New API: |
| +hb_face_get_table_tags() |
| +hb_font_set_ptem() |
| +hb_font_get_ptem() |
| +hb_ft_font_changed() |
| |
| |
| Overview of changes leading to 1.5.1 |
| Tuesday, September 5, 2017 |
| ==================================== |
| |
| - Fix "unsafe-to-break" in fallback shaping and other corner cases. |
| All our tests pass with --verify now, meaning unsafe-to-break API |
| works as expected. |
| - Add --unicodes to hb-view / hb-shape. |
| - [indic] Treat Consonant_With_Stacker as consonant. This will need |
| further tweaking. |
| - hb_buffer_diff() tweaks. |
| |
| |
| Overview of changes leading to 1.5.0 |
| Wednesday, August 23, 2017 |
| ==================================== |
| |
| - Misc new API, for appending a buffer to another, and for comparing |
| contents of two buffers for types of differences. |
| |
| - New "unsafe-to-break" API. Can be used to speed up reshaping |
| in line-breaking situations. Essentially, after shaping, it returns |
| positions in the input string (some of the cluster boundaries) that |
| are "safe to break" in that if the text is segmented at that position |
| and two sides reshaped and concatenated, the shaping result is |
| exactly the same as shaping the text in one piece. |
| |
| hb-view and hb-shape and hb-shape now take --verify, which verifies |
| the above property. |
| |
| Some corner cases of the implementation are still not quite working. |
| Those will be fixed in subsequent releases. |
| |
| - New API: |
| |
| hb_buffer_append() |
| |
| hb_glyph_flags_t |
| HB_GLYPH_FLAG_UNSAFE_TO_BREAK |
| HB_GLYPH_FLAG_DEFINED |
| hb_glyph_info_get_glyph_flags() |
| |
| HB_BUFFER_SERIALIZE_FLAG_GLYPH_FLAGS |
| |
| hb_buffer_diff_flags_t |
| HB_BUFFER_DIFF_FLAG_EQUAL |
| HB_BUFFER_DIFF_FLAG_CONTENT_TYPE_MISMATCH |
| HB_BUFFER_DIFF_FLAG_LENGTH_MISMATCH |
| HB_BUFFER_DIFF_FLAG_NOTDEF_PRESENT |
| HB_BUFFER_DIFF_FLAG_DOTTED_CIRCLE_PRESENT |
| HB_BUFFER_DIFF_FLAG_CODEPOINT_MISMATCH |
| HB_BUFFER_DIFF_FLAG_CLUSTER_MISMATCH |
| HB_BUFFER_DIFF_FLAG_GLYPH_FLAGS_MISMATCH |
| HB_BUFFER_DIFF_FLAG_POSITION_MISMATCH |
| hb_buffer_diff |
| |
| |
| Overview of changes leading to 1.4.8 |
| Tuesday, August 8, 2017 |
| ==================================== |
| |
| - Major fix to avar table handling. |
| - Rename hb-shape --show-message to --trace. |
| - Build fixes. |
| |
| |
| Overview of changes leading to 1.4.7 |
| Tuesday, July 18, 2017 |
| ==================================== |
| |
| - Multiple Indic, Tibetan, and Cham fixes. |
| - CoreText: Allow disabling kerning. |
| - Adjust Arabic feature order again. |
| - Misc build fixes. |
| |
| |
| Overview of changes leading to 1.4.6 |
| Sunday, April 23, 2017 |
| ==================================== |
| |
| - Graphite2: Fix RTL positioning issue. |
| - Backlist GDEF of more versions of Padauk and Tahoma. |
| - New, experimental, cmake alternative build system. |
| |
| |
| Overview of changes leading to 1.4.5 |
| Friday, March 10, 2017 |
| ==================================== |
| |
| - Revert "Fix Context lookup application when moving back after a glyph..." |
| This introduced memory access problems. To be fixed properly soon. |
| |
| |
| Overview of changes leading to 1.4.4 |
| Sunday, March 5, 2017 |
| ==================================== |
| |
| - Fix Context lookup application when moving back after a glyph deletion. |
| - Fix buffer-overrun in Bengali. |
| |
| |
| Overview of changes leading to 1.4.3 |
| Saturday, February 25, 2017 |
| ==================================== |
| |
| - Route Adlam script to Arabic shaper. |
| - Misc fixes. |
| - New API: |
| hb_font_set_face() |
| - Deprecate API: |
| hb_graphite2_font_get_gr_font() |
| |
| |
| Overview of changes leading to 1.4.2 |
| Monday, January 23, 2017 |
| ==================================== |
| |
| - Implement OpenType Font Variation tables avar/fvar/HVAR/VVAR. |
| - hb-shape and hb-view now accept --variations. |
| - New API: |
| |
| hb_variation_t |
| hb_variation_from_string() |
| hb_variation_to_string() |
| |
| hb_font_set_variations() |
| hb_font_set_var_coords_design() |
| hb_font_get_var_coords_normalized() |
| |
| hb-ot-var.h: |
| hb_ot_var_axis_t |
| hb_ot_var_has_data() |
| hb_ot_var_get_axis_count() |
| hb_ot_var_get_axes() |
| hb_ot_var_find_axis() |
| hb_ot_var_normalize_variations() |
| hb_ot_var_normalize_coords() |
| |
| - MVAR to be implemented later. Access to named instances to be |
| implemented later as well. |
| |
| - Misc fixes. |
| |
| |
| Overview of changes leading to 1.4.1 |
| Thursday, January 5, 2017 |
| ==================================== |
| |
| - Always build and use UCDN for Unicode data by default. |
| Reduces dependence on version of Unicode data in glib, |
| specially in the Windows bundles we are shipping, which |
| have very old glib. |
| |
| |
| Overview of changes leading to 1.4.0 |
| Thursday, January 5, 2017 |
| ==================================== |
| |
| - Merged "OpenType GX" branch which adds core of support for |
| OpenType 1.8 Font Variations. To that extent, the relevant |
| new API is: |
| |
| New API: |
| hb_font_set_var_coords_normalized() |
| |
| with supporting API: |
| |
| New API: |
| HB_OT_LAYOUT_NO_VARIATIONS_INDEX |
| hb_ot_layout_table_find_feature_variations() |
| hb_ot_layout_feature_with_variations_get_lookups() |
| hb_shape_plan_create2() |
| hb_shape_plan_create_cached2() |
| |
| Currently variations in GSUB/GPOS/GDEF are fully supported, |
| and no other tables are supported. In particular, fvar/avar |
| are NOT supported, hence the hb_font_set_var_coords_normalized() |
| taking normalized coordinates. API to take design coordinates |
| will be added in the future. |
| |
| HVAR/VVAR/MVAR support will also be added to hb-ot-font in the |
| future. |
| |
| - Fix regression in GDEF glyph class processing. |
| - Add decompositions for Chakma, Limbu, and Balinese in USE shaper. |
| - Misc fixes. |
| |
| |
| Overview of changes leading to 1.3.4 |
| Monday, December 5, 2016 |
| ==================================== |
| |
| - Fix vertical glyph origin in hb-ot-font. |
| - Implement CBDT/CBLC color font glyph extents in hb-ot-font. |
| |
| |
| Overview of changes leading to 1.3.3 |
| Wednesday, September 28, 2016 |
| ==================================== |
| |
| - Implement parsing of OpenType MATH table. |
| New API: |
| HB_OT_TAG_MATH |
| HB_OT_MATH_SCRIPT |
| hb_ot_math_constant_t |
| hb_ot_math_kern_t |
| hb_ot_math_glyph_variant_t |
| hb_ot_math_glyph_part_flags_t |
| hb_ot_math_glyph_part_t |
| hb_ot_math_has_data |
| hb_ot_math_get_constant |
| hb_ot_math_get_glyph_italics_correction |
| hb_ot_math_get_glyph_top_accent_attachment |
| hb_ot_math_get_glyph_kerning |
| hb_ot_math_is_glyph_extended_shape |
| hb_ot_math_get_glyph_variants |
| hb_ot_math_get_min_connector_overlap |
| hb_ot_math_get_glyph_assembly |
| |
| |
| Overview of changes leading to 1.3.2 |
| Wednesday, September 27, 2016 |
| ==================================== |
| |
| - Fix build of hb-coretext on older OS X versions. |
| |
| |
| Overview of changes leading to 1.3.1 |
| Wednesday, September 7, 2016 |
| ==================================== |
| |
| - Blacklist bad GDEF of more fonts (Padauk). |
| - More CoreText backend crash fixes with OS X 10.9.5. |
| - Misc fixes. |
| |
| |
| Overview of changes leading to 1.3.0 |
| Thursday, July 21, 2016 |
| ==================================== |
| |
| - Update to Unicode 9.0.0 |
| - Move Javanese from Indic shaper to Universal Shaping Engine. |
| - Allow MultipleSubst to delete a glyph (matching Windows engine). |
| - Update Universal Shaping Engine to latest draft from Microsoft. |
| - DirectWrite backend improvements. Note: this backend is for testing ONLY. |
| - CoreText backend improvements with unreachable fonts. |
| - Implement symbol fonts (cmap 3.0.0) in hb-ft and hb-ot-font. |
| - Blacklist bad GDEF of more fonts (Tahoma & others). |
| - Misc fixes. |
| |
| |
| Overview of changes leading to 1.2.7 |
| Monday, May 2, 2016 |
| ==================================== |
| |
| - Blacklist another version of Times New Roman (Bold) Italic from Windows 7. |
| - Fix Mongolian Free Variation Selectors shaping with certain fonts. |
| - Fix Tibetan shorthand contractions shaping. |
| - Improved list of language tag mappings. |
| - Unbreak build on Windows CE. |
| - Make 'glyf' table loading lazy in hb-ot-font. |
| |
| |
| Overview of changes leading to 1.2.6 |
| Friday, April 8, 2016 |
| ==================================== |
| |
| - Blacklist GDEF table of another set of Times New Roman (Bold) Italic. |
| - DirectWrite backend improvements. Note: DirectWrite backend is |
| exclusively for our internal testing and should NOT be used in any |
| production system whatsoever. |
| |
| |
| Overview of changes leading to 1.2.5 |
| Monday, April 4, 2016 |
| ==================================== |
| |
| - Fix GDEF mark-filtering-set, which was broken in 1.2.3. |
| |
| |
| Overview of changes leading to 1.2.4 |
| Thursday, March 17, 2016 |
| ==================================== |
| |
| - Synthesize GDEF glyph class for any glyph that does not have one in GDEF. |
| I really hope we don't discover broken fonts that shape badly with this |
| change. |
| - Misc build and other minor fixes. |
| - API changes: |
| - Added HB_NDEBUG. It's fine for production systems to define this to |
| disable high-overhead debugging checks. However, I also reduced the |
| overhead of those checks, so it's a non-issue right now. You can |
| forget it. Just not defining anything at all is fine. |
| |
| |
| Overview of changes leading to 1.2.3 |
| Thursday, February 25, 2016 |
| ==================================== |
| |
| - Blacklist GDEF table of certain versions of Times New Roman (Bold) Italic, |
| due to bug in glyph class of ASCII double-quote character. This should |
| address "regression" introduced in 1.2.0 when we switched mark zeroing |
| in most shapers from BY_UNICODE_LATE to BY_GDEF_LATE. |
| This fourth release in a week should finally stabilize things... |
| |
| - hb-ot-font's get_glyph() implementation saw some optimizations. Though, |
| might be really hard to measure in real-world situations. |
| |
| - Also, two rather small API changes: |
| |
| We now disable some time-consuming internal bookkeeping if built with NDEBUG |
| defined. This is a first time that we use NDEBUG to disable debug code. If |
| there exist production systems that do NOT want to enable NDEBUG, please let |
| me know and I'll add HB_NDEBUG. |
| |
| Added get_nominal_glyph() and get_variation_glyph() instead of get_glyph() |
| |
| New API: |
| - hb_font_get_nominal_glyph_func_t |
| - hb_font_get_variation_glyph_func_t |
| - hb_font_funcs_set_nominal_glyph_func() |
| - hb_font_funcs_set_variation_glyph_func() |
| - hb_font_get_nominal_glyph() |
| - hb_font_get_variation_glyph() |
| |
| Deprecated API: |
| - hb_font_get_glyph_func_t |
| - hb_font_funcs_set_glyph_func() |
| |
| Clients that implement their own font-funcs are encouraged to replace |
| their get_glyph() implementation with a get_nominal_glyph() and |
| get_variation_glyph() pair. The variation version can assume that |
| variation_selector argument is not zero. Old (deprecated) functions |
| will continue working indefinitely using internal gymnastics; it is |
| just more efficient to use the new functions. |
| |
| |
| Overview of changes leading to 1.2.2 |
| Wednesday, February 24, 2016 |
| ==================================== |
| |
| - Fix regression with mark positioning with fonts that have |
| non-zero mark advances. This was introduced in 1.2.0 while |
| trying to make mark and cursive attachments to work together. |
| I have partially reverted that, so this version is much more |
| like what we had before. All clients who updated to 1.2.0 |
| should update to this version. |
| |
| |
| Overview of changes leading to 1.2.1 |
| Tuesday, February 23, 2016 |
| ==================================== |
| |
| - CoreText: Fix bug with wrong scale if font scale was changed later. |
| https://github.com/libass/libass/issues/212 |
| - CoreText: Drastically speed up font initialization. |
| - CoreText: Fix tiny leak. |
| - Group ZWJ/ZWNJ with previous syllable under cluster-level=0. |
| https://github.com/harfbuzz/harfbuzz/issues/217 |
| - Add test/shaping/README.md about how to add tests to the suite. |
| |
| |
| Overview of changes leading to 1.2.0 |
| Friday, February 19, 2016 |
| ==================================== |
| |
| - Fix various issues (hangs mostly) in case of memory allocation failure. |
| - Change mark zeroing types of most shapers from BY_UNICODE_LATE to |
| BY_GDEF_LATE. This seems to be what Uniscribe does. |
| - Change mark zeroing of USE shaper from NONE to BY_GDEF_EARLY. That's |
| what Windows does. |
| - Allow GPOS cursive connection on marks, and fix the interaction with |
| mark attachment. This work resulted in some changes to how mark |
| attachments work. See: |
| https://github.com/harfbuzz/harfbuzz/issues/211 |
| https://github.com/harfbuzz/harfbuzz/commit/86c68c7a2c971efe8e35b1f1bd99401dc8b688d2 |
| - Graphite2 shaper: improved negative advance handling (eg. Nastaliq). |
| - Add nmake-based build system for Windows. |
| - Minor speedup. |
| - Misc. improvements. |
| |
| |
| Overview of changes leading to 1.1.3 |
| Monday, January 11, 2016 |
| ==================================== |
| |
| - Ported Indic shaper to Unicode 8.0 data. |
| - Universal Shaping Engine fixes. |
| - Speed up CoreText shaper when font fallback happens in CoreText. |
| - Documentation improvements, thanks to Khaled Hosny. |
| - Very rough directwrite shaper for testing, thanks to Ebrahim Byagowi. |
| - Misc bug fixes. |
| - New API: |
| |
| * Font extents: |
| hb_font_extents_t |
| hb_font_get_font_extents_func_t |
| hb_font_get_font_h_extents_func_t |
| hb_font_get_font_v_extents_func_t |
| hb_font_funcs_set_font_h_extents_func |
| hb_font_funcs_set_font_v_extents_func |
| hb_font_get_h_extents |
| hb_font_get_v_extents |
| hb_font_get_extents_for_direction |
| |
| * Buffer message (aka debug): |
| hb_buffer_message_func_t |
| hb_buffer_set_message_func() |
| Actual message protocol to be fleshed out later. |
| |
| |
| Overview of changes leading to 1.1.2 |
| Wednesday, November 26, 2015 |
| ==================================== |
| |
| - Fix badly-broken fallback shaper that affected terminology. |
| https://github.com/harfbuzz/harfbuzz/issues/187 |
| - Fix y_scaling in Graphite shaper. |
| - API changes: |
| * An unset glyph_h_origin() function in font-funcs now (sensibly) |
| implies horizontal origin at 0,0. Ie, the nil callback returns |
| true instead of false. As such, implementations that have a |
| glyph_h_origin() that simply returns true, can remove that function |
| with HarfBuzz >= 1.1.2. This results in a tiny speedup. |
| |
| |
| Overview of changes leading to 1.1.1 |
| Wednesday, November 24, 2015 |
| ==================================== |
| |
| - Build fixes, specially for hb-coretext. |
| |
| |
| Overview of changes leading to 1.1.0 |
| Wednesday, November 18, 2015 |
| ==================================== |
| |
| - Implement 'stch' stretch feature for Syriac Abbreviation Mark. |
| https://github.com/harfbuzz/harfbuzz/issues/141 |
| - Disable use of decompose_compatibility() callback. |
| - Implement "shaping" of various Unicode space characters, even |
| if the font does not support them. |
| https://github.com/harfbuzz/harfbuzz/issues/153 |
| - If font does not support U+2011 NO-BREAK HYPHEN, fallback to |
| U+2010 HYPHEN. |
| - Changes resulting from libFuzzer continuous fuzzing: |
| * Reject font tables that need more than 8 edits, |
| * Bound buffer growth during shaping to 32x, |
| * Fix assertions and other issues at OOM / buffer max-growth. |
| - Misc fixes and optimizations. |
| - API changes: |
| * All fonts created with hb_font_create() now inherit from |
| (ie. have parent) hb_font_get_empty(). |
| |
| |
| Overview of changes leading to 1.0.6 |
| Thursday, October 15, 2015 |
| ==================================== |
| |
| - Reduce max nesting level in OT lookups from 8 to 6. |
| Should not affect any real font as far as I know. |
| - Fix memory access issue in ot-font. |
| - Revert default load-flags of fonts created using hb_ft_font_create() |
| back to FT_LOAD_DEFAULT|FT_LOAD_NO_HINTING. This was changed in |
| last release (1.0.5), but caused major issues, so revert. |
| https://github.com/harfbuzz/harfbuzz/issues/143 |
| |
| |
| Overview of changes leading to 1.0.5 |
| Tuesday, October 13, 2015 |
| ==================================== |
| |
| - Fix multiple memory access bugs discovered using libFuzzer. |
| https://github.com/harfbuzz/harfbuzz/issues/139 |
| Everyone should upgrade to this version as soon as possible. |
| We now have continuous fuzzing set up, to avoid issues like |
| these creeping in again. |
| - Misc fixes. |
| |
| - New API: |
| * hb_font_set_parent(). |
| * hb_ft_font_[sg]et_load_flags() |
| The default flags for fonts created using hb_ft_font_create() |
| has changed to default to FT_LOAD_DEFAULT now. Previously it |
| was defaulting to FT_LOAD_DFEAULT|FT_LOAD_NO_HINTING. |
| |
| - API changes: |
| * Fonts now default to units-per-EM as their scale, instead of 0. |
| * hb_font_create_sub_font() does NOT make parent font immutable |
| anymore. hb_font_make_immutable() does. |
| |
| |
| Overview of changes leading to 1.0.4 |
| Wednesday, September 30, 2015 |
| ==================================== |
| |
| - Fix minor out-of-bounds read error. |
| |
| |
| Overview of changes leading to 1.0.3 |
| Tuesday, September 1, 2015 |
| ==================================== |
| |
| - Start of user documentation, from Simon Cozens! |
| - Implement glyph_extents() for TrueType fonts in hb-ot-font. |
| - Improve GPOS cursive attachments with conflicting lookups. |
| - More fixes for cluster-level = 1. |
| - Uniscribe positioning fix. |
| |
| |
| Overview of changes leading to 1.0.2 |
| Wednesday, August 19, 2015 |
| ==================================== |
| |
| - Fix shaping with cluster-level > 0. |
| - Fix Uniscribe backend font-size scaling. |
| - Declare dependencies in harfbuzz.pc. |
| FreeType is not declared though, to avoid bugs in pkg-config |
| 0.26 with recursive dependencies. |
| - Slightly improved debug infrastructure. More to come later. |
| - Misc build fixes. |
| |
| |
| Overview of changes leading to 1.0.1 |
| Monday, July 27, 2015 |
| ==================================== |
| |
| - Fix out-of-bounds access in USE shaper. |
| |
| |
| Overview of changes leading to 1.0.0 |
| Sunday, July 26, 2015 |
| ==================================== |
| |
| - Implement Universal Shaping Engine: |
| https://www.microsoft.com/typography/OpenTypeDev/USE/intro.htm |
| http://blogs.windows.com/bloggingwindows/2015/02/23/windows-shapes-the-worlds-languages/ |
| - Bump version to 1.0.0. The soname was NOT bumped. |
| |
| |
| Overview of changes leading to 0.9.42 |
| Thursday, July 26, 2015 |
| ===================================== |
| |
| - New API to allow for retrieving finer-grained cluster |
| mappings if the client desires to handle them. Default |
| behavior is unchanged. |
| - Fix cluster merging when removing default-ignorables. |
| - Update to Unicode 8.0 |
| - hb-graphite2 fixes. |
| - Misc fixes. |
| - Removed HB_NO_MERGE_CLUSTERS hack. |
| - New API: |
| hb_buffer_cluster_level_t enum |
| hb_buffer_get_cluster_level() |
| hb_buffer_set_cluster_level() |
| hb-shape / hb-view --cluster-level |
| |
| |
| Overview of changes leading to 0.9.41 |
| Thursday, June 18, 2015 |
| ===================================== |
| |
| - Fix hb-coretext with trailing whitespace in right-to-left. |
| - New API: hb_buffer_reverse_range(). |
| - Allow implementing atomic ops in config.h. |
| - Fix hb_language_t in language bindings. |
| - Misc fixes. |
| |
| |
| Overview of changes leading to 0.9.40 |
| Friday, March 20, 2015 |
| ===================================== |
| |
| - Another hb-coretext crasher fix. Ouch! |
| - Happy Norouz! |
| |
| |
| Overview of changes leading to 0.9.39 |
| Wednesday, March 4, 2015 |
| ===================================== |
| |
| - Critical hb-coretext fixes. |
| - Optimizations and refactoring; no functional change |
| expected. |
| - Misc build fixes. |
| |
| |
| Overview of changes leading to 0.9.38 |
| Friday, January 23, 2015 |
| ===================================== |
| |
| - Fix minor out-of-bounds access in Indic shaper. |
| - Change New Tai Lue shaping engine from South-East Asian to default, |
| reflecting change in Unicode encoding model. |
| - Add hb-shape --font-size. Can take up to two numbers for separate |
| x / y size. |
| - Fix CoreText and FreeType scale issues with negative scales. |
| - Reject blobs larger than 2GB. This might break some icu-le-hb clients |
| that need security fixes. See: |
| http://www.icu-project.org/trac/ticket/11450 |
| - Avoid accessing font tables during face destruction, in casce rogue |
| clients released face data already. |
| - Fix up gobject-introspection a bit. Python bindings kinda working. |
| See README.python. |
| - Misc fixes. |
| - API additions: |
| hb_ft_face_create_referenced() |
| hb_ft_font_create_referenced() |
| |
| |
| Overview of changes leading to 0.9.37 |
| Wednesday, December 17, 2014 |
| ===================================== |
| |
| - Fix out-of-bounds access in Context lookup format 3. |
| - Indic: Allow ZWJ/ZWNJ before syllable modifiers. |
| |
| |
| Overview of changes leading to 0.9.36 |
| Thursday, November 20, 2014 |
| ===================================== |
| |
| - First time that three months went by without a release since |
| 0.9.2 was released on August 10, 2012! |
| - Fix performance bug in hb_ot_collect_glyphs(): |
| https://bugzilla.mozilla.org/show_bug.cgi?id=1090869 |
| - Add basic vertical-text support to hb-ot-font. |
| - Misc build fixes. |
| |
| |
| Overview of changes leading to 0.9.35 |
| Saturday, August 13, 2014 |
| ===================================== |
| |
| - Fix major shape-plan caching bug when more than one shaper were |
| provided to hb_shape_full() (as exercised by XeTeX). |
| http://www.mail-archive.com/debian-bugs-dist@lists.debian.org/msg1246370.html |
| - Fix Arabic fallback shaping regression. This was broken in 0.9.32. |
| - Major hb-coretext fixes. That backend is complete now, including |
| respecing buffer direction and language, down to vertical writing. |
| - Build fixes for Windows CE. Should build fine now. |
| - Misc fixes: |
| Use atexit() only if it's safe to call from shared library |
| https://bugs.freedesktop.org/show_bug.cgi?id=82246 |
| Mandaic had errors in its Unicode Joining_Type |
| https://bugs.freedesktop.org/show_bug.cgi?id=82306 |
| - API changes: |
| |
| * hb_buffer_clear_contents() does not reset buffer flags now. |
| |
| After 763e5466c0a03a7c27020e1e2598e488612529a7, one doesn't |
| need to set flags for different pieces of text. The flags now |
| are something the client sets up once, depending on how it |
| actually uses the buffer. As such, don't clear it in |
| clear_contents(). |
| |
| I don't expect any changes to be needed to any existing client. |
| |
| |
| Overview of changes leading to 0.9.34 |
| Saturday, August 2, 2014 |
| ===================================== |
| |
| - hb_feature_from_string() now accepts CSS font-feature-settings format. |
| - As a result, hb-shape / hb-view --features also accept CSS-style strings. |
| Eg, "'liga' off" is accepted now. |
| - Add old-spec Myanmar shaper: |
| https://bugs.freedesktop.org/show_bug.cgi?id=81775 |
| - Don't apply 'calt' in Hangul shaper. |
| - Fix mark advance zeroing for Hebrew shaper: |
| https://bugs.freedesktop.org/show_bug.cgi?id=76767 |
| - Implement Windows-1256 custom Arabic shaping. Only built on Windows, |
| and requires help from get_glyph(). Used by Firefox. |
| https://bugzilla.mozilla.org/show_bug.cgi?id=1045139 |
| - Disable 'liga' in vertical text. |
| - Build fixes. |
| - API changes: |
| |
| * Make HB_BUFFER_FLAG_BOT/EOT easier to use. |
| |
| Previously, we expected users to provide BOT/EOT flags when the |
| text *segment* was at paragraph boundaries. This meant that for |
| clients that provide full paragraph to HarfBuzz (eg. Pango), they |
| had code like this: |
| |
| hb_buffer_set_flags (hb_buffer, |
| (item_offset == 0 ? HB_BUFFER_FLAG_BOT : 0) | |
| (item_offset + item_length == paragraph_length ? |
| HB_BUFFER_FLAG_EOT : 0)); |
| |
| hb_buffer_add_utf8 (hb_buffer, |
| paragraph_text, paragraph_length, |
| item_offset, item_length); |
| |
| After this change such clients can simply say: |
| |
| hb_buffer_set_flags (hb_buffer, |
| HB_BUFFER_FLAG_BOT | HB_BUFFER_FLAG_EOT); |
| |
| hb_buffer_add_utf8 (hb_buffer, |
| paragraph_text, paragraph_length, |
| item_offset, item_length); |
| |
| Ie, HarfBuzz itself checks whether the segment is at the beginning/end |
| of the paragraph. Clients that only pass item-at-a-time to HarfBuzz |
| continue not setting any flags whatsoever. |
| |
| Another way to put it is: if there's pre-context text in the buffer, |
| HarfBuzz ignores the BOT flag. If there's post-context, it ignores |
| EOT flag. |
| |
| |
| Overview of changes leading to 0.9.33 |
| Tuesday, July 22, 2014 |
| ===================================== |
| |
| - Turn off ARabic 'cswh' feature that was accidentally turned on. |
| - Add HB_TAG_MAX_SIGNED. |
| - Make hb_face_make_immutable() really make face immutable! |
| - Windows build fixes. |
| |
| |
| Overview of changes leading to 0.9.32 |
| Thursday, July 17, 2014 |
| ===================================== |
| |
| - Apply Arabic shaping features in spec order exactly. |
| - Another fix for Mongolian free variation selectors. |
| - For non-Arabic scripts in Arabic shaper apply 'rlig' and 'calt' |
| together. |
| - Minor adjustment to U+FFFD logic. |
| - Fix hb-coretext build. |
| |
| |
| Overview of changes leading to 0.9.31 |
| Wednesday, July 16, 2014 |
| ===================================== |
| |
| - Only accept valid UTF-8/16/32; we missed many cases before. |
| - Better shaping of invalid UTF-8/16/32. Falls back to |
| U+FFFD REPLACEMENT CHARACTER now. |
| - With all changes in this release, the buffer will contain fully |
| valid Unicode after hb_buffer_add_utf8/16/32 no matter how |
| broken the input is. This can be overridden though. See below. |
| - Fix Mongolian Variation Selectors for fonts without GDEF. |
| - Fix minor invalid buffer access. |
| - Accept zh-Hant and zh-Hans language tags. hb_ot_tag_to_language() |
| now uses these instead of private tags. |
| - Build fixes. |
| - New API: |
| * hb_buffer_add_codepoints(). This does what hb_buffer_add_utf32() |
| used to do, ie. no validity check on the input at all. add_utf32 |
| now replaces invalid Unicode codepoints with the replacement |
| character (see below). |
| * hb_buffer_set_replacement_codepoint() |
| * hb_buffer_get_replacement_codepoint() |
| Previously, in hb_buffer_add_utf8 and hb_buffer_add_utf16, when |
| we detected broken input, we replaced that with (hb_codepoint_t)-1. |
| This has changed to use U+FFFD now, but can be changed using these |
| new API. |
| |
| |
| Overview of changes leading to 0.9.30 |
| Wednesday, July 9, 2014 |
| ===================================== |
| |
| - Update to Unicode 7.0.0: |
| * New scripts Manichaean and Psalter Pahlavi are shaped using |
| Arabic shaper. |
| * All the other new scripts to through the generic shaper for |
| now. |
| - Minor Indic improvements. |
| - Fix graphite2 backend cluster mapping [crasher!] |
| - API changes: |
| * New HB_SCRIPT_* values for Unicode 7.0 scripts. |
| * New function hb_ot_layout_language_get_required_feature(). |
| - Build fixes. |
| |
| |
| Overview of changes leading to 0.9.29 |
| Thursday, May 29, 2014 |
| ===================================== |
| |
| - Implement cmap in hb-ot-font.h. No variation-selectors yet. |
| - Myanmar: Allow MedialYa+Asat. |
| - Various Indic fixes: |
| * Support most characters in Extended Devanagary and Vedic |
| Unicode blocks. |
| * Allow digits and a some punctuation as consonant placeholders. |
| - Build fixes. |
| |
| |
| Overview of changes leading to 0.9.28 |
| Monday, April 28, 2014 |
| ===================================== |
| |
| - Unbreak old-spec Indic shaping. (bug 76705) |
| - Fix shaping of U+17DD and U+0FC6. |
| - Add HB_NO_MERGE_CLUSTERS build option. NOT to be enabled by default |
| for shipping libraries. It's an option for further experimentation |
| right now. When we are sure how to do it properly, we will add |
| public run-time API for the functionality. |
| - Build fixes. |
| |
| |
| Overview of changes leading to 0.9.27 |
| Tuesday, March 18, 2014 |
| ===================================== |
| |
| - Don't use "register" storage class specifier |
| - Wrap definition of free_langs() with HAVE_ATEXIT |
| - Add coretext_aat shaper and hb_coretext_face_create() constructor |
| - If HAVE_ICU_BUILTIN is defined, use hb-icu Unicode callbacks |
| - Add Myanmar test case from OpenType Myanmar spec |
| - Only do fallback Hebrew composition if no GPOS 'mark' available |
| - Allow bootstrapping without gtk-doc |
| - Use AM_MISSING_PROG for ragel and git |
| - Typo in ucdn's Makefile.am |
| - Improve MemoryBarrier() implementation |
| |
| |
| Overview of changes leading to 0.9.26 |
| Thursday, January 30, 2014 |
| ===================================== |
| |
| - Misc fixes. |
| - Fix application of 'rtlm' feature. |
| - Automatically apply frac/numr/dnom around U+2044 FRACTION SLASH. |
| - New header: hb-ot-shape.h |
| - Uniscribe: fix scratch-buffer accounting. |
| - Reorder Tai Tham SAKOT to after tone-marks. |
| - Add Hangul shaper. |
| - New files: |
| hb-ot-shape-complex-hangul.cc |
| hb-ot-shape-complex-hebrew.cc |
| hb-ot-shape-complex-tibetan.cc |
| - Disable 'cswh' feature in Arabic shaper. |
| - Coretext: better handle surrogate pairs. |
| - Add HB_TAG_MAX and _HB_SCRIPT_MAX_VALUE. |
| |
| |
| Overview of changes leading to 0.9.25 |
| Wednesday, December 4, 2013 |
| ===================================== |
| |
| - Myanmar shaper improvements. |
| - Avoid font fallback in CoreText backend. |
| - Additional OpenType language tag mappiongs. |
| - More aggressive shape-plan caching. |
| - Build with / require automake 1.13. |
| - Build with libtool 2.4.2.418 alpha to support ppc64le. |
| |
| |
| Overview of changes leading to 0.9.24 |
| Tuesday, November 13, 2013 |
| ===================================== |
| |
| - Misc compiler warning fixes with clang. |
| - No functional changes. |
| |
| |
| Overview of changes leading to 0.9.23 |
| Monday, October 28, 2013 |
| ===================================== |
| |
| - "Udupi HarfBuzz Hackfest", Paris, October 14..18 2013. |
| - Fix (Chain)Context recursion with non-monotone lookup positions. |
| - Misc Indic bug fixes. |
| - New Javanese / Buginese shaping, similar to Windows 8.1. |
| |
| |
| Overview of changes leading to 0.9.22 |
| Thursday, October 3, 2013 |
| ===================================== |
| |
| - Fix use-after-end-of-scope in hb_language_from_string(). |
| - Fix hiding of default_ignorables if font doesn't have space glyph. |
| - Protect against out-of-range lookup indices. |
| |
| - API Changes: |
| |
| * Added hb_ot_layout_table_get_lookup_count() |
| |
| |
| Overview of changes leading to 0.9.21 |
| Monday, September 16, 2013 |
| ===================================== |
| |
| - Rename gobject-introspection library name from harfbuzz to HarfBuzz. |
| - Remove (long disabled) hb-old and hb-icu-le test shapers. |
| - Misc gtk-doc and gobject-introspection annotations. |
| - Misc fixes. |
| - API changes: |
| |
| * Add HB_SET_VALUE_INVALID |
| |
| Overview of changes leading to 0.9.20 |
| Thursday, August 29, 2013 |
| ===================================== |
| |
| General: |
| - Misc substitute_closure() fixes. |
| - Build fixes. |
| |
| Documentation: |
| - gtk-doc boilerplate integrated. Docs are built now, but |
| contain no contents. By next release hopefully we have |
| some content in. Enable using --enable-gtk-doc. |
| |
| GObject and Introspection: |
| - Added harfbuzz-gobject library (hb-gobject.h) that has type |
| bindings for all HarfBuzz objects and enums. Enable using |
| --with-gobject. |
| - Added gobject-introspection boilerplate. Nothing useful |
| right now. Work in progress. Gets enabled automatically if |
| --with-gobject is used. Override with --disable-introspection. |
| |
| OpenType shaper: |
| - Apply 'mark' in Myanmar shaper. |
| - Don't apply 'dlig' by default. |
| |
| Uniscribe shaper: |
| - Support user features. |
| - Fix loading of fonts that are also installed on the system. |
| - Fix shaping of Arabic Presentation Forms. |
| - Fix build with wide chars. |
| |
| CoreText shaper: |
| - Support user features. |
| |
| Source changes: |
| - hb_face_t code moved to hb-face.h / hb-face.cc. |
| - Added hb-deprecated.h. |
| |
| API changes: |
| - Added HB_DISABLE_DEPRECATED. |
| - Deprecated HB_SCRIPT_CANADIAN_ABORIGINAL; replaced by |
| HB_SCRIPT_CANADIAN_SYLLABICS. |
| - Deprecated HB_BUFFER_FLAGS_DEFAULT; replaced by |
| HB_BUFFER_FLAG_DEFAULT. |
| - Deprecated HB_BUFFER_SERIALIZE_FLAGS_DEFAULT; replaced by |
| HB_BUFFER_SERIALIZE_FLAG_DEFAULT. |
| |
| |
| Overview of changes leading to 0.9.19 |
| Tuesday, July 16, 2013 |
| ===================================== |
| |
| - Build fixes. |
| - Better handling of multiple variation selectors in a row. |
| - Pass on variation selector to GSUB if not consumed by cmap. |
| - Fix undefined memory access. |
| - Add Javanese config to Indic shaper. |
| - Misc bug fixes. |
| |
| Overview of changes leading to 0.9.18 |
| Tuesday, May 28, 2013 |
| ===================================== |
| |
| New build system: |
| |
| - All unneeded code is all disabled by default, |
| |
| - Uniscribe and CoreText shapers can be enabled with their --with options, |
| |
| - icu_le and old shapers cannot be enabled for now, |
| |
| - glib, freetype, and cairo will be detected automatically. |
| They can be force on/off'ed with their --with options, |
| |
| - icu and graphite2 are default off, can be enabled with their --with |
| options, |
| |
| Moreover, ICU support is now build into a separate library: |
| libharfbuzz-icu.so, and a new harfbuzz-icu.pc is shipped for it. |
| Distros can enable ICU now without every application on earth |
| getting linked to via libharfbuzz.so. |
| |
| For distros I recommend that they make sure they are building --with-glib |
| --with-freetype --with-cairo, --with-icu, and optionally --with-graphite2; |
| And package harfbuzz and harfbuzz-icu separately. |
| |
| |
| Overview of changes leading to 0.9.17 |
| Monday, May 20, 2013 |
| ===================================== |
| |
| - Build fixes. |
| - Fix bug in hb_set_get_min(). |
| - Fix regression with Arabic mark positioning / width-zeroing. |
| |
| Overview of changes leading to 0.9.16 |
| Friday, April 19, 2013 |
| ===================================== |
| |
| - Major speedup in OpenType lookup processing. With the Amiri |
| Arabic font, this release is over 3x faster than previous |
| release. All scripts / languages should see this speedup. |
| |
| - New --num-iterations option for hb-shape / hb-view; useful for |
| profiling. |
| |
| Overview of changes leading to 0.9.15 |
| Friday, April 05, 2013 |
| ===================================== |
| |
| - Build fixes. |
| - Fix crasher in graphite2 shaper. |
| - Fix Arabic mark width zeroing regression. |
| - Don't compose Hangul jamo into Unicode syllables. |
| |
| |
| Overview of changes leading to 0.9.14 |
| Thursday, March 21, 2013 |
| ===================================== |
| |
| - Build fixes. |
| - Fix time-consuming sanitize with malicious fonts. |
| - Implement hb_buffer_deserialize_glyphs() for both json and text. |
| - Do not ignore Hangul filler characters. |
| - Indic fixes: |
| * Fix Malayalam pre-base reordering interaction with post-forms. |
| * Further adjust ZWJ handling. Should fix known regressions from |
| 0.9.13. |
| |
| |
| Overview of changes leading to 0.9.13 |
| Thursday, February 25, 2013 |
| ===================================== |
| |
| - Build fixes. |
| - Ngapi HarfBuzz Hackfest in London (February 2013): |
| * Fixed all known Indic bugs, |
| * New Win8-style Myanmar shaper, |
| * New South-East Asian shaper for Tai Tham, Cham, and New Tai Lue, |
| * Smartly ignore Default_Ignorable characters (joiners, etc) wheb |
| matching GSUB/GPOS lookups, |
| * Fix 'Phags-Pa U+A872 shaping, |
| * Fix partial disabling of default-on features, |
| * Allow disabling of TrueType kerning. |
| - Fix possible crasher with broken fonts with overlapping tables. |
| - Removed generated files from git again. So, one needs ragel to |
| bootstrap from the git tree. |
| |
| API changes: |
| - hb_shape() and related APIs now abort if buffer direction is |
| HB_DIRECTION_INVALID. Previously, hb_shape() was calling |
| hb_buffer_guess_segment_properties() on the buffer before |
| shaping. The heuristics in that function are fragile. If the |
| user really wants the old behvaior, they can call that function |
| right before calling hb_shape() to get the old behavior. |
| - hb_blob_create_sub_blob() always creates sub-blob with |
| HB_MEMORY_MODE_READONLY. See comments for the reason. |
| |
| |
| Overview of changes leading to 0.9.12 |
| Thursday, January 18, 2013 |
| ===================================== |
| |
| - Build fixes for Sun compiler. |
| - Minor bug fix. |
| |
| Overview of changes leading to 0.9.11 |
| Thursday, January 10, 2013 |
| ===================================== |
| |
| - Build fixes. |
| - Fix GPOS mark attachment with null Anchor offsets. |
| - [Indic] Fix old-spec reordering of viramas if sequence ends in one. |
| - Fix multi-threaded shaper data creation crash. |
| - Add atomic ops for Solaris. |
| |
| API changes: |
| - Rename hb_buffer_clear() to hb_buffer_clear_contents(). |
| |
| |
| Overview of changes leading to 0.9.10 |
| Thursday, January 3, 2013 |
| ===================================== |
| |
| - [Indic] Fixed rendering of Malayalam dot-reph |
| - Updated OT language tags. |
| - Updated graphite2 backend. |
| - Improved hb_ot_layout_get_size_params() logic. |
| - Improve hb-shape/hb-view help output. |
| - Fixed hb-set.h implementation to not crash. |
| - Fixed various issues with hb_ot_layout_collect_lookups(). |
| - Various build fixes. |
| |
| New API: |
| |
| hb_graphite2_face_get_gr_face() |
| hb_graphite2_font_get_gr_font() |
| hb_coretext_face_get_cg_font() |
| |
| Modified API: |
| |
| hb_ot_layout_get_size_params() |
| |
| |
| Overview of changes leading to 0.9.9 |
| Wednesday, December 5, 2012 |
| ==================================== |
| |
| - Fix build on Windows. |
| - Minor improvements. |
| |
| |
| Overview of changes leading to 0.9.8 |
| Tuesday, December 4, 2012 |
| ==================================== |
| |
| |
| - Actually implement hb_shape_plan_get_shaper (). |
| - Make UCDB data tables const. |
| - Lots of internal refactoring in OTLayout tables. |
| - Flesh out hb_ot_layout_lookup_collect_glyphs(). |
| |
| New API: |
| |
| hb_ot_layout_collect_lookups() |
| hb_ot_layout_get_size_params() |
| |
| |
| Overview of changes leading to 0.9.7 |
| Sunday, November 21, 2012 |
| ==================================== |
| |
| |
| HarfBuzz "All-You-Can-Eat-Sushi" (aka Vancouver) Hackfest and follow-on fixes. |
| |
| - Fix Arabic contextual joining using pre-context text. |
| - Fix Sinhala "split matra" mess. |
| - Fix Khmer shaping with broken fonts. |
| - Implement Thai "PUA" shaping for old fonts. |
| - Do NOT route Kharoshthi script through the Indic shaper. |
| - Disable fallback positioning for Indic and Thai shapers. |
| - Misc fixes. |
| |
| |
| hb-shape / hb-view changes: |
| |
| - Add --text-before and --text-after |
| - Add --bot / --eot / --preserve-default-ignorables |
| - hb-shape --output-format=json |
| |
| |
| New API: |
| |
| hb_buffer_clear() |
| |
| hb_buffer_flags_t |
| |
| HB_BUFFER_FLAGS_DEFAULT |
| HB_BUFFER_FLAG_BOT |
| HB_BUFFER_FLAG_EOT |
| HB_BUFFER_FLAG_PRESERVE_DEFAULT_IGNORABLES |
| |
| hb_buffer_set_flags() |
| hb_buffer_get_flags() |
| |
| HB_BUFFER_SERIALIZE_FLAGS |
| hb_buffer_serialize_glyphs() |
| hb_buffer_deserialize_glyphs() |
| hb_buffer_serialize_list_formats() |
| |
| hb_set_add_range() |
| hb_set_del_range() |
| hb_set_get_population() |
| hb_set_next_range() |
| |
| hb_face_[sg]et_glyph_count() |
| |
| hb_segment_properties_t |
| HB_SEGMENT_PROPERTIES_DEFAULT |
| hb_segment_properties_equal() |
| hb_segment_properties_hash() |
| |
| hb_buffer_set_segment_properties() |
| hb_buffer_get_segment_properties() |
| |
| hb_ot_layout_glyph_class_t |
| hb_ot_layout_get_glyph_class() |
| hb_ot_layout_get_glyphs_in_class() |
| |
| hb_shape_plan_t |
| hb_shape_plan_create() |
| hb_shape_plan_create_cached() |
| hb_shape_plan_get_empty() |
| hb_shape_plan_reference() |
| hb_shape_plan_destroy() |
| hb_shape_plan_set_user_data() |
| hb_shape_plan_get_user_data() |
| hb_shape_plan_execute() |
| hb_shape_plan_get_shaper() |
| |
| hb_ot_shape_plan_collect_lookups() |
| |
| |
| API changes: |
| |
| - Remove "mask" parameter from hb_buffer_add(). |
| - Rename hb_ot_layout_would_substitute_lookup() and hb_ot_layout_substitute_closure_lookup(). |
| - hb-set.h API const correction. |
| - Renamed hb_set_min/max() to hb_set_get_min/max(). |
| - Rename hb_ot_layout_feature_get_lookup_indexes() to hb_ot_layout_feature_get_lookups(). |
| - Rename hb_buffer_guess_properties() to hb_buffer_guess_segment_properties(). |
| |
| |
| |
| Overview of changes leading to 0.9.6 |
| Sunday, November 13, 2012 |
| ==================================== |
| |
| - Don't clear pre-context text if no new context is provided. |
| - Fix ReverseChainingSubstLookup, which was totally borked. |
| - Adjust output format of hb-shape a bit. |
| - Include config.h.in in-tree. Makes it easier for alternate build systems. |
| - Fix hb_buffer_set_length(buffer, 0) invalid memory allocation. |
| - Use ICU LayoutEngine's C API instead of C++. Avoids much headache. |
| - Drop glyphs for all of Unicode Default_Ignorable characters. |
| - Misc build fixes. |
| |
| Arabic shaper: |
| - Enable 'dlig' and 'mset' features in Arabic shaper. |
| - Implement 'Phags-pa shaping, improve Mongolian. |
| |
| Indic shaper: |
| - Decompose Sinhala split matras the way old HarfBuzz / Pango did. |
| - Initial support for Consonant Medials. |
| - Start adding new-style Myanmar shaping. |
| - Make reph and 'pref' logic introspect the font. |
| - Route Meetei-Mayek through the Indic shaper. |
| - Don't apply 'liga' in Indic shaper. |
| - Improve Malayalam pre-base reordering Ra interaction with Chillus. |
| |
| |
| |
| Overview of changes leading to 0.9.5 |
| Sunday, October 14, 2012 |
| ==================================== |
| |
| - Synthetic-GSUB Arabic fallback shaping. |
| |
| - Misc Indic improvements. |
| |
| - Add build system support for pthread. |
| |
| - Imported UCDN for in-tree Unicode callbacks implementation. |
| |
| - Context-aware Arabic joining. |
| |
| - Misc other fixes. |
| |
| - New API: |
| |
| hb_feature_to/from-string() |
| hb_buffer_[sg]et_content_type() |
| |
| |
| |
| Overview of changes leading to 0.9.4 |
| Tuesday, Sep 03, 2012 |
| ==================================== |
| |
| - Indic improvements with old-spec Malayalam. |
| |
| - Better fallback glyph positioning, specially with Thai / Lao marks. |
| |
| - Implement dotted-circle insertion. |
| |
| - Better Arabic fallback shaping / ligation. |
| |
| - Added ICU LayoutEngine backend for testing. Call it by the 'icu_le' name. |
| |
| - Misc fixes. |
| |
| |
| |
| Overview of changes leading to 0.9.3 |
| Friday, Aug 18, 2012 |
| ==================================== |
| |
| - Fixed fallback mark positioning for left-to-right text. |
| |
| - Improve mark positioning for the remaining combining classes. |
| |
| - Unbreak Thai and fallback Arabic shaping. |
| |
| - Port Arabic shaper to shape-plan caching. |
| |
| - Use new ICU normalizer functions. |
| |
| |
| |
| Overview of changes leading to 0.9.2 |
| Friday, Aug 10, 2012 |
| ==================================== |
| |
| - Over a thousand commits! This is the first major release of HarfBuzz. |
| |
| - HarfBuzz is feature-complete now! It should be in par, or better, than |
| both Pango's shapers and old HarfBuzz / Qt shapers. |
| |
| - New Indic shaper, supporting main Indic scripts, Sinhala, and Khmer. |
| |
| - Improved Arabic shaper, with fallback Arabic shaping, supporting Arabic, |
| Sinhala, N'ko, Mongolian, and Mandaic. |
| |
| - New Thai / Lao shaper. |
| |
| - Tibetan / Hangul support in the generic shaper. |
| |
| - Synthetic GDEF support for fonts without a GDEF table. |
| |
| - Fallback mark positioning for fonts without a GPOS table. |
| |
| - Unicode normalization shaping heuristic during glyph mapping. |
| |
| - New experimental Graphite2 backend. |
| |
| - New Uniscribe backend (primarily for testing). |
| |
| - New CoreText backend (primarily for testing). |
| |
| - Major optimization and speedup. |
| |
| - Test suites and testing infrastructure (work in progress). |
| |
| - Greatly improved hb-view cmdline tool. |
| |
| - hb-shape cmdline tool. |
| |
| - Unicode 6.1 support. |
| |
| Summary of API changes: |
| |
| o Changed API: |
| |
| - Users are expected to only include main header files now (ie. hb.h, |
| hb-glib.h, hb-ft.h, ...) |
| |
| - All struct tag names had their initial underscore removed. |
| Ie. "struct _hb_buffer_t" is "struct hb_buffer_t" now. |
| |
| - All set_user_data() functions now take a "replace" boolean parameter. |
| |
| - hb_buffer_create() takes zero arguments now. |
| Use hb_buffer_pre_allocate() to pre-allocate. |
| |
| - hb_buffer_add_utf*() now accept -1 for length parameters, |
| meaning "nul-terminated". |
| |
| - hb_direction_t enum values changed. |
| |
| - All *_from_string() APIs now take a length parameter to allow for |
| non-nul-terminated strings. A -1 length means "nul-terminated". |
| |
| - Typedef for hb_language_t changed. |
| |
| - hb_get_table_func_t renamed to hb_reference_table_func_t. |
| |
| - hb_ot_layout_table_choose_script() |
| |
| - Various renames in hb-unicode.h. |
| |
| o New API: |
| |
| - hb_buffer_guess_properties() |
| Automatically called by hb_shape(). |
| |
| - hb_buffer_normalize_glyphs() |
| |
| - hb_tag_from_string() |
| |
| - hb-coretext.h |
| |
| - hb-uniscribe.h |
| |
| - hb_face_reference_blob() |
| - hb_face_[sg]et_index() |
| - hb_face_set_upem() |
| |
| - hb_font_get_glyph_name_func_t |
| hb_font_get_glyph_from_name_func_t |
| hb_font_funcs_set_glyph_name_func() |
| hb_font_funcs_set_glyph_from_name_func() |
| hb_font_get_glyph_name() |
| hb_font_get_glyph_from_name() |
| hb_font_glyph_to_string() |
| hb_font_glyph_from_string() |
| |
| - hb_font_set_funcs_data() |
| |
| - hb_ft_font_set_funcs() |
| - hb_ft_font_get_face() |
| |
| - hb-gobject.h (work in progress) |
| |
| - hb_ot_shape_glyphs_closure() |
| hb_ot_layout_substitute_closure_lookup() |
| |
| - hb-set.h |
| |
| - hb_shape_full() |
| |
| - hb_unicode_combining_class_t |
| |
| - hb_unicode_compose_func_t |
| hb_unicode_decompose_func_t |
| hb_unicode_decompose_compatibility_func_t |
| hb_unicode_funcs_set_compose_func() |
| hb_unicode_funcs_set_decompose_func() |
| hb_unicode_funcs_set_decompose_compatibility_func() |
| hb_unicode_compose() |
| hb_unicode_decompose() |
| hb_unicode_decompose_compatibility() |
| |
| o Removed API: |
| |
| - hb_ft_get_font_funcs() |
| |
| - hb_ot_layout_substitute_start() |
| hb_ot_layout_substitute_lookup() |
| hb_ot_layout_substitute_finish() |
| hb_ot_layout_position_start() |
| hb_ot_layout_position_lookup() |
| hb_ot_layout_position_finish() |
| |
| |
| |
| Overview of changes leading to 0.6.0 |
| Friday, May 27, 2011 |
| ==================================== |
| |
| - Vertical text support in GPOS |
| - Almost all API entries have unit tests now, under test/ |
| - All thread-safety issues are fixed |
| |
| Summary of API changes follows. |
| |
| |
| * Simple Types API: |
| |
| o New API: |
| HB_LANGUAGE_INVALID |
| hb_language_get_default() |
| hb_direction_to_string() |
| hb_direction_from_string() |
| hb_script_get_horizontal_direction() |
| HB_UNTAG() |
| |
| o Renamed API: |
| hb_category_t renamed to hb_unicode_general_category_t |
| |
| o Changed API: |
| hb_language_t is a typed pointers now |
| |
| o Removed API: |
| HB_TAG_STR() |
| |
| |
| * Use ISO 15924 tags for hb_script_t: |
| |
| o New API: |
| hb_script_from_iso15924_tag() |
| hb_script_to_iso15924_tag() |
| hb_script_from_string() |
| |
| o Changed API: |
| HB_SCRIPT_* enum members changed value. |
| |
| |
| * Buffer API streamlined: |
| |
| o New API: |
| hb_buffer_reset() |
| hb_buffer_set_length() |
| hb_buffer_allocation_successful() |
| |
| o Renamed API: |
| hb_buffer_ensure() renamed to hb_buffer_pre_allocate() |
| hb_buffer_add_glyph() renamed to hb_buffer_add() |
| |
| o Removed API: |
| hb_buffer_clear() |
| hb_buffer_clear_positions() |
| |
| o Changed API: |
| hb_buffer_get_glyph_infos() takes an out length parameter now |
| hb_buffer_get_glyph_positions() takes an out length parameter now |
| |
| |
| * Blob API streamlined: |
| |
| o New API: |
| hb_blob_get_data() |
| hb_blob_get_data_writable() |
| |
| o Renamed API: |
| hb_blob_create_empty() renamed to hb_blob_get_empty() |
| |
| o Removed API: |
| hb_blob_lock() |
| hb_blob_unlock() |
| hb_blob_is_writable() |
| hb_blob_try_writable() |
| |
| o Changed API: |
| hb_blob_create() takes user_data before destroy now |
| |
| |
| * Unicode functions API: |
| |
| o Unicode function vectors can subclass other unicode function vectors now. |
| Unimplemented callbacks in the subclass automatically chainup to the parent. |
| |
| o All hb_unicode_funcs_t callbacks take a user_data now. Their setters |
| take a user_data and its respective destroy callback. |
| |
| o New API: |
| hb_unicode_funcs_get_empty() |
| hb_unicode_funcs_get_default() |
| hb_unicode_funcs_get_parent() |
| |
| o Changed API: |
| hb_unicode_funcs_create() now takes a parent_funcs. |
| |
| o Removed func getter functions: |
| hb_unicode_funcs_get_mirroring_func() |
| hb_unicode_funcs_get_general_category_func() |
| hb_unicode_funcs_get_script_func() |
| hb_unicode_funcs_get_combining_class_func() |
| hb_unicode_funcs_get_eastasian_width_func() |
| |
| |
| * Face API: |
| |
| o Renamed API: |
| hb_face_get_table() renamed to hb_face_reference_table() |
| hb_face_create_for_data() renamed to hb_face_create() |
| |
| o Changed API: |
| hb_face_create_for_tables() takes user_data before destroy now |
| hb_face_reference_table() returns empty blob instead of NULL |
| hb_get_table_func_t accepts the face as first parameter now |
| |
| * Font API: |
| |
| o Fonts can subclass other fonts now. Unimplemented callbacks in the |
| subclass automatically chainup to the parent. When chaining up, |
| scale is adjusted if the parent font has a different scale. |
| |
| o All hb_font_funcs_t callbacks take a user_data now. Their setters |
| take a user_data and its respective destroy callback. |
| |
| o New API: |
| hb_font_get_parent() |
| hb_font_funcs_get_empty() |
| hb_font_create_sub_font() |
| |
| o Removed API: |
| hb_font_funcs_copy() |
| hb_font_unset_funcs() |
| |
| o Removed func getter functions: |
| hb_font_funcs_get_glyph_func() |
| hb_font_funcs_get_glyph_advance_func() |
| hb_font_funcs_get_glyph_extents_func() |
| hb_font_funcs_get_contour_point_func() |
| hb_font_funcs_get_kerning_func() |
| |
| o Changed API: |
| hb_font_create() takes a face and references it now |
| hb_font_set_funcs() takes user_data before destroy now |
| hb_font_set_scale() accepts signed integers now |
| hb_font_get_contour_point_func_t now takes glyph first, then point_index |
| hb_font_get_glyph_func_t returns a success boolean now |
| |
| |
| * Changed object model: |
| |
| o All object types have a _get_empty() now: |
| hb_blob_get_empty() |
| hb_buffer_get_empty() |
| hb_face_get_empty() |
| hb_font_get_empty() |
| hb_font_funcs_get_empty() |
| hb_unicode_funcs_get_empty() |
| |
| o Added _set_user_data() and _get_user_data() for all object types: |
| hb_blob_get_user_data() |
| hb_blob_set_user_data() |
| hb_buffer_get_user_data() |
| hb_buffer_set_user_data() |
| hb_face_get_user_data() |
| hb_face_set_user_data() |
| hb_font_funcs_get_user_data() |
| hb_font_funcs_set_user_data() |
| hb_font_get_user_data() |
| hb_font_set_user_data() |
| hb_unicode_funcs_get_user_data() |
| hb_unicode_funcs_set_user_data() |
| |
| o Removed the _get_reference_count() from all object types: |
| hb_blob_get_reference_count() |
| hb_buffer_get_reference_count() |
| hb_face_get_reference_count() |
| hb_font_funcs_get_reference_count() |
| hb_font_get_reference_count() |
| hb_unicode_funcs_get_reference_count() |
| |
| o Added _make_immutable() and _is_immutable() for all object types except for buffer: |
| hb_blob_make_immutable() |
| hb_blob_is_immutable() |
| hb_face_make_immutable() |
| hb_face_is_immutable() |
| |
| |
| * Changed API for vertical text support |
| |
| o The following callbacks where removed: |
| hb_font_get_glyph_advance_func_t |
| hb_font_get_kerning_func_t |
| |
| o The following new callbacks added instead: |
| hb_font_get_glyph_h_advance_func_t |
| hb_font_get_glyph_v_advance_func_t |
| hb_font_get_glyph_h_origin_func_t |
| hb_font_get_glyph_v_origin_func_t |
| hb_font_get_glyph_h_kerning_func_t |
| hb_font_get_glyph_v_kerning_func_t |
| |
| o The following API removed as such: |
| hb_font_funcs_set_glyph_advance_func() |
| hb_font_funcs_set_kerning_func() |
| hb_font_get_glyph_advance() |
| hb_font_get_kerning() |
| |
| o New API added instead: |
| hb_font_funcs_set_glyph_h_advance_func() |
| hb_font_funcs_set_glyph_v_advance_func() |
| hb_font_funcs_set_glyph_h_origin_func() |
| hb_font_funcs_set_glyph_v_origin_func() |
| hb_font_funcs_set_glyph_h_kerning_func() |
| hb_font_funcs_set_glyph_v_kerning_func() |
| hb_font_get_glyph_h_advance() |
| hb_font_get_glyph_v_advance() |
| hb_font_get_glyph_h_origin() |
| hb_font_get_glyph_v_origin() |
| hb_font_get_glyph_h_kerning() |
| hb_font_get_glyph_v_kerning() |
| |
| o The following higher-leve API added for convenience: |
| hb_font_get_glyph_advance_for_direction() |
| hb_font_get_glyph_origin_for_direction() |
| hb_font_add_glyph_origin_for_direction() |
| hb_font_subtract_glyph_origin_for_direction() |
| hb_font_get_glyph_kerning_for_direction() |
| hb_font_get_glyph_extents_for_origin() |
| hb_font_get_glyph_contour_point_for_origin() |
| |
| |
| * OpenType Layout API: |
| |
| o New API: |
| hb_ot_layout_position_start() |
| hb_ot_layout_substitute_start() |
| hb_ot_layout_substitute_finish() |
| |
| |
| * Glue code: |
| |
| o New API: |
| hb_glib_script_to_script() |
| hb_glib_script_from_script() |
| hb_icu_script_to_script() |
| hb_icu_script_from_script() |
| |
| |
| * Version API added: |
| |
| o New API: |
| HB_VERSION_MAJOR |
| HB_VERSION_MINOR |
| HB_VERSION_MICRO |
| HB_VERSION_STRING |
| HB_VERSION_CHECK() |
| hb_version() |
| hb_version_string() |
| hb_version_check() |
| |
| |
