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Diffstat (limited to 'src/3rdparty/harfbuzz-ng/NEWS')
| -rw-r--r-- | src/3rdparty/harfbuzz-ng/NEWS | 721 |
1 files changed, 718 insertions, 3 deletions
diff --git a/src/3rdparty/harfbuzz-ng/NEWS b/src/3rdparty/harfbuzz-ng/NEWS index 2d3e6a6e3f..9a5914525c 100644 --- a/src/3rdparty/harfbuzz-ng/NEWS +++ b/src/3rdparty/harfbuzz-ng/NEWS @@ -1,3 +1,715 @@ +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) @@ -18,6 +730,7 @@ History Repeats Itself (Afghanistan) --glyphs-file, --unicodes-file, supporting ranges in --unicodes. - Various bug fixes. + Overview of changes leading to 2.8.2 Tuesday, July 8, 2021 ==================================== @@ -34,6 +747,7 @@ Tuesday, July 8, 2021 +hb_blob_create_from_file_or_fail() +hb_set_copy() + Overview of changes leading to 2.8.1 Tuesday, May 4, 2021 ==================================== @@ -65,6 +779,7 @@ Sunday, December 27, 2020 tarball. - Documentation updates. + Overview of changes leading to 2.7.3 Wednesday, December 23, 2020 ==================================== @@ -261,7 +976,7 @@ Friday, May 24, 2019 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 Databse implementation that is half the size of previously-used +- New Unicode Character Database implementation that is half the size of previously-used UCDN. - Subsetter improvements. - Improved documentation, thanks to Nathan Willis. @@ -1109,7 +1824,7 @@ Thursday, February 25, 2016 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 stablize things... + 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. @@ -2157,7 +2872,7 @@ o Changed API: - hb_buffer_create() takes zero arguments now. Use hb_buffer_pre_allocate() to pre-allocate. - - hb_buffer_add_utf*() now accept -1 for length parameteres, + - hb_buffer_add_utf*() now accept -1 for length parameters, meaning "nul-terminated". - hb_direction_t enum values changed. |