HarfBuzz text shaping engine
http://harfbuzz.github.io/
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2839 lines
88 KiB
2839 lines
88 KiB
Overview of changes leading to 4.2.0 |
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Wednesday, March 30, 2022 |
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==================================== |
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- Source code reorganization, splitting large hb-ot-layout files into smaller, |
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per-subtable ones under OT/Layout/*. Code for more tables will follow suit in |
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later releases. (Garret Rieger, Behdad Esfahbod) |
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- Revert Indic shaper change in previous release that broke some fonts and |
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instead make per-syllable restriction of “GSUB” application limited to |
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script-specific Indic features, while applying them and discretionary |
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features in one go. (Behdad Esfahbod) |
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- Fix decoding of private in gvar table. (Behdad Esfahbod) |
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- Fix handling of contextual lookups that delete too many glyphs. (Behdad Esfahbod) |
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- Make “morx” deleted glyphs don’t block “GPOS” application. (Behdad Esfahbod) |
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- Various build fixes. (Chun-wei Fan, Khaled Hosny) |
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- New API |
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+hb_set_next_many() (Andrew John) |
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Overview of changes leading to 4.1.0 |
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Wednesday, March 23, 2022 |
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==================================== |
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- Various OSS-Fuzz fixes. (Behdad Esfahbod) |
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- Make fallback vertical-origin match FreeType’s. (Behdad Esfahbod) |
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- Treat visible viramas like dependent vowels in USE shaper. (David Corbett) |
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- Apply presentation forms features and discretionary features in one go in |
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Indic shaper, which seems to match Uniscribe and CoreText behaviour. |
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(Behdad Esfahbod, David Corbett) |
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- Various bug fixes. |
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- New API |
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+hb_set_add_sorted_array() (Andrew John) |
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Overview of changes leading to 4.0.1 |
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Friday, March 11, 2022 |
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==================================== |
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- Update OpenType to AAT mappings for “hist” and “vrtr” features. |
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(Florian Pircher) |
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- Update IANA Language Subtag Registry to 2022-03-02. (David Corbett) |
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- Update USE shaper to allow any non-numeric tail in a symbol cluster, and |
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remove obsolete data overrides. (David Corbett) |
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- Fix handling of baseline variations to return correctly scaled values. |
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(Matthias Clasen) |
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- A new experimental hb_subset_repack_or_fail() to repack an array of objects, |
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eliminating offset overflows. The API is not available unless HarfBuzz is |
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built with experimental APIs enabled. (Qunxin Liu) |
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|
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- New experimental API |
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+hb_link_t |
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+hb_object_t |
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+hb_subset_repack_or_fail() |
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Overview of changes leading to 4.0.0 |
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Tuesday, March 1, 2022 |
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==================================== |
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- New public API to create subset plan and gather information on things like |
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glyph mappings in the final subset. The plan can then be passed on to perform |
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the subsetting operation. (Garret Rieger) |
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- Draw API for extracting glyph shapes have been extended and finalized and is |
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no longer an experimental API. The draw API supports glyf, CFF and CFF2 |
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glyph outlines tables, and applies variation settings set on the font as well |
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as synthetic slant. The new public API is not backward compatible with the |
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previous, non-public, experimental API. (Behdad Esfahbod) |
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- The hb-view tool will use HarfBuzz draw API to render the glyphs instead of |
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cairo-ft when compiled with Cairo 1.17.5 or newer, setting HB_DRAW |
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environment variable to 1 or 0 will force using or not use the draw API, |
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respectively. (Behdad Esfahbod) |
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- The hb-shape and hb-view tools now default to using HarfBuzz’s own font |
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loading functions (ot) instead of FreeType ones (ft). They also have a new |
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option, --font-slant, to apply synthetic slant to the font. (Behdad Esfahbod) |
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- HarfBuzz now supports more than 65535 (the OpenType limit) glyph shapes and |
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metrics. See https://github.com/be-fonts/boring-expansion-spec/issues/6 and |
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https://github.com/be-fonts/boring-expansion-spec/issues/7 for details. |
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(Behdad Esfahbod) |
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- New API to get the dominant horizontal baseline tag for a given script. |
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(Behdad Esfahbod) |
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- New API to get the baseline positions from the font, and synthesize missing |
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ones. As well as new API to get font metrics and synthesize missing ones. |
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(Matthias Clasen) |
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- Improvements to finding dependencies on Windows when building with Visual |
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Studio. (Chun-wei Fan) |
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- New buffer flag, HB_BUFFER_FLAG_PRODUCE_UNSAFE_TO_CONCAT, that must be set |
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during shaping for HB_GLYPH_FLAG_UNSAFE_TO_CONCAT flag to be reliably |
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produced. This is to limit the performance hit of producing this flag to when |
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it is actually needed. (Behdad Esfahbod) |
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- Documentation improvements. (Matthias Clasen) |
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- New API |
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- General: |
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+HB_BUFFER_FLAG_PRODUCE_UNSAFE_TO_CONCAT |
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+hb_var_num_t |
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- Draw: |
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+hb_draw_funcs_t |
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+hb_draw_funcs_create() |
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+hb_draw_funcs_reference() |
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+hb_draw_funcs_destroy() |
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+hb_draw_funcs_is_immutable() |
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+hb_draw_funcs_make_immutable() |
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+hb_draw_move_to_func_t |
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+hb_draw_funcs_set_move_to_func() |
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+hb_draw_line_to_func_t |
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+hb_draw_funcs_set_line_to_func() |
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+hb_draw_quadratic_to_func_t |
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+hb_draw_funcs_set_quadratic_to_func() |
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+hb_draw_cubic_to_func_t |
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+hb_draw_funcs_set_cubic_to_func() |
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+hb_draw_close_path_func_t |
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+hb_draw_funcs_set_close_path_func() |
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+hb_draw_state_t |
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+HB_DRAW_STATE_DEFAULT |
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+hb_draw_move_to() |
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+hb_draw_line_to() |
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+hb_draw_quadratic_to() |
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+hb_draw_cubic_to() |
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+hb_draw_close_path() |
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+hb_font_get_glyph_shape_func_t |
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+hb_font_funcs_set_glyph_shape_func() |
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+hb_font_get_glyph_shape() |
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- OpenType layout |
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+HB_OT_LAYOUT_BASELINE_TAG_IDEO_FACE_CENTRAL |
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+HB_OT_LAYOUT_BASELINE_TAG_IDEO_EMBOX_CENTRAL |
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+hb_ot_layout_get_horizontal_baseline_tag_for_script() |
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+hb_ot_layout_get_baseline_with_fallback() |
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- Metrics: |
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+hb_ot_metrics_get_position_with_fallback() |
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- Subset: |
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+hb_subset_plan_t |
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+hb_subset_plan_create_or_fail() |
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+hb_subset_plan_reference() |
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+hb_subset_plan_destroy() |
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+hb_subset_plan_set_user_data() |
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+hb_subset_plan_get_user_data() |
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+hb_subset_plan_execute_or_fail() |
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+hb_subset_plan_unicode_to_old_glyph_mapping() |
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+hb_subset_plan_new_to_old_glyph_mapping() |
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+hb_subset_plan_old_to_new_glyph_mapping() |
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Overview of changes leading to 3.4.0 |
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Sunday, February 13, 2022 |
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==================================== |
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- Perform sanity checks on shaping results is now part of “harfbuzz” library |
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and can be enabled by setting the buffer flag HB_BUFFER_FLAG_VERIFY. |
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(Behdad Esfahbod) |
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- Arabic Mark Transient Reordering Algorithm have been updated to revision 6. |
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(Khaled Hosny) |
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- ISO 15924 code for mathematical notation, ‘Zmth’, now maps to the OpenType |
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‘math’ tag. (Alexis King) |
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- It is now possible to get at once all math kerning values for a given glyph |
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at a given corner. (Alexis King) |
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- Fix locale_t portability issues on systems the typedef’s it to a void |
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pointer. (Behdad Esfahbod) |
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- New API: |
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+HB_BUFFER_FLAG_VERIFY |
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+HB_OT_TAG_MATH_SCRIPT |
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+HB_SCRIPT_MATH |
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+hb_ot_math_kern_entry_t |
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+hb_ot_math_get_glyph_kernings() |
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- Deprecated API |
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+HB_OT_MATH_SCRIPT |
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Overview of changes leading to 3.3.2 |
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Sunday, February 6, 2022 |
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==================================== |
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- Revert splitting of pair positioning values introduced in 3.3.0 as it proved |
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problematic. (Behdad Esfahbod) |
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Overview of changes leading to 3.3.1 |
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Monday, January 31, 2022 |
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==================================== |
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- Fix heap-use-after-free in harfbuzz-subset introduced in previous release. |
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(Garret Rieger) |
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Overview of changes leading to 3.3.0 |
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Monday, January 31, 2022 |
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==================================== |
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- Improved documentation. (Matthias Clasen) |
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- Internal code cleanup, using C++ standard library more. (Behdad Esfahbod) |
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- The low 16-bits of face index will be used by hb_face_create() to select a |
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face inside a font collection file format, while the high 16-bits will be |
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used by hb_font_create() to load the named instance. (Behdad Esfahbod) |
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- Glyph positions and other font metrics now apply synthetic slant set by |
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hb_font_set_synthetic_slant(), for improved positioning for synthetically |
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slanted fonts. (Behdad Esfahbod) |
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- Fixed unintentional locale dependency in hb_variation_to_string() for decimal |
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point representation. (Matthias Clasen) |
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- When applying pair positioning (kerning) the positioning value is split |
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between the two sides of the pair for improved cursor positioning between |
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such pairs. (Behdad Esfahbod) |
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- Introduced new HB_GLYPH_FLAG_UNSAFE_TO_CONCAT, to be used in conjunction |
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with HB_GLYPH_FLAG_UNSAFE_TO_BREAK for optimizing re-shaping during line |
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breaking. Check the documentation for further details. (Behdad Esfahbod) |
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- Improved handling of macrolanguages when mapping BCP 47 codes to OpenType |
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tags. (David Corbett) |
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- New API: |
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+HB_GLYPH_FLAG_UNSAFE_TO_CONCAT |
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+hb_segment_properties_overlay() |
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+hb_buffer_create_similar() |
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+hb_font_set_synthetic_slant() |
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+hb_font_get_synthetic_slant() |
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+hb_font_get_var_coords_design() |
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Overview of changes leading to 3.2.0 |
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Friday, November 26, 2021 |
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==================================== |
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“harfbuzz” library improvements: |
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- Fixed shaping of Apple Color Emoji flags in right-to-left context. (Behdad Esfahbod) |
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- Fixed positioning of CFF fonts in HB_TINY profile. (Behdad Esfahbod) |
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- OpenType 1.9 language tags update. (David Corbett) |
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- Add HB_NO_VERTICAL config option. |
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- Add HB_CONFIG_OVERRIDE_H for easier configuration. (Behdad Esfahbod) |
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“harfbuzz-subset” library improvements: |
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- Improved packing of cmap, loca, and Ligature tables. (Garret Rieger) |
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- Significantly improved overflow-resolution strategy in the repacker. (Garret Rieger) |
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Overview of changes leading to 3.1.2 |
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Friday, November 26, 2021 |
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==================================== |
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- hb-shape / hb-view: revert treating text on the commandline as single |
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paragraph (was introduced in 3.0.0); add new --single-par to do that. |
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(Behdad Esfahbod) |
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- Subsetter bug fixes. (Garret Rieger, Qunxin Liu, Behdad Esfahbod) |
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Overview of changes leading to 3.1.1 |
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Wednesday, November 8, 2021 |
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==================================== |
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- Work around GCC cast-align error/warning on some platforms. (Behdad Esfahbod) |
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- Documentation improvements. (Matthias Clasen) |
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Overview of changes leading to 3.1.0 |
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Wednesday, November 3, 2021 |
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==================================== |
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- Better offset-overflow handling in the subsetter library. (Garret Rieger) |
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- Improved Unicode 14 properties in the USE shaper, and various other USE |
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shaper fixes. (David Corbett) |
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- MATH and COLR v1 tables subsetting support, and various other subsetter fixes. |
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(Qunxin Liu) |
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- Support for Pwo Karen / Ason Chin medial la. (Simon Cozens) |
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- Apply GPOS positioning when substituting with morx table, if kerx is missing. |
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(Behdad Esfahbod) |
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- Apply calt and clig features across syllable boundaries in Indic shaper. |
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(Behdad Esfahbod) |
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- meson option for enabling Graphite 2 has been renamed to graphite2. |
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- Build and documentation fixes. |
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|
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- New API: |
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+hb_buffer_set_not_found_glyph() |
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+hb_buffer_get_not_found_glyph() |
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Overview of changes leading to 3.0.0 |
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Friday, September 17, 2021 |
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==================================== |
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- Unicode 14.0 support (David Corbett). |
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- The hb-subset API and the harfbuzz-subset library's ABI are now declared |
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stable. The harfbuzz-subset library would not have been possible without the |
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work of Garret Rieger and Qunxin Liu from Google Fonts, and the earlier work |
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of Michiharu Ariza from Adobe. |
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- The hb-style API is now stable and no longer experimental. |
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|
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- New API: |
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+hb_style_tag_t |
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+hb_style_get_value() |
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+hb_subset_input_t |
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+hb_subset_flags_t |
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+hb_subset_sets_t |
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+hb_subset_input_create_or_fail() |
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+hb_subset_input_reference() |
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+hb_subset_input_destroy() |
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+hb_subset_input_set_user_data() |
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+hb_subset_input_get_user_data() |
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+hb_subset_input_unicode_set() |
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+hb_subset_input_glyph_set() |
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+hb_subset_input_set() |
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+hb_subset_input_get_flags() |
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+hb_subset_input_set_flags() |
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+hb_subset_or_fail() |
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|
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- Removed old unstable harfbuzz-subset API: |
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-hb_subset_input_nameid_set() |
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-hb_subset_input_namelangid_set() |
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-hb_subset_input_layout_features_set() |
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-hb_subset_input_no_subset_tables_set() |
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-hb_subset_input_drop_tables_set() |
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-hb_subset_input_set_drop_hints() |
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-hb_subset_input_get_drop_hints() |
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-hb_subset_input_set_desubroutinize() |
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-hb_subset_input_get_desubroutinize() |
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-hb_subset_input_set_retain_gids() |
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-hb_subset_input_get_retain_gids() |
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-hb_subset_input_set_name_legacy() |
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-hb_subset_input_get_name_legacy() |
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-hb_subset_input_set_overlaps_flag() |
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-hb_subset_input_get_overlaps_flag() |
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-hb_subset_input_set_notdef_outline() |
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-hb_subset_input_get_notdef_outline() |
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-hb_subset_input_set_no_prune_unicode_ranges() |
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-hb_subset_input_get_no_prune_unicode_ranges() |
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-hb_subset() |
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Overview of changes leading to 2.9.1 |
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Tuesday, September 7, 2021 |
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==================================== |
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- Final subset API is in place and if no issues are discovered, it will be the |
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stable subset API of HarfBuzz 3.0.0. Old API is kept to ease transition, but |
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will be removed in 3.0.0. |
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- Various fuzzer-found bug fixes. |
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- hb_buffer_append() now handles the pre- and post-context which previously |
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were left unchanged in the destination buffer. |
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- hb-view / hb-shape now accept following new arguments: |
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o --unicodes-before/after: takes a list of hex numbers that represent Unicode |
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codepoints. |
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- Undeprecated API: |
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hb_set_invert() |
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Overview of changes leading to 2.9.0 |
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Wednesday, August 18, 2021 |
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History Repeats Itself (Afghanistan) |
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==================================== |
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- Subsetter API is being stabilized, with the first stable API to happen in |
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3.0.0 release (https://github.com/harfbuzz/harfbuzz/issues/3078). |
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- Support multiple variation axes with same tag, aka HOI. |
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- The “coretext” testing shaper now passes font variations to CoreText. |
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- hb-shape/hb-view does not break line at new lines unless text is read from |
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file. |
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- hb-view and hb-subset has a --batch now, similar to hb-shape. |
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- The --batch mode now uses ; as argument separator instead of : used previously. |
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- The --batch in hb-shape does not expect 0th argument anymore. That is, the |
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lines read are interpreted as argv[1:], instead of argv[0:]. |
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- The --batch option has been undocumented. We are ready to document it; send |
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feedback if you find it useful. |
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- hb-subset got arguments revamps. Added much-requested --gids-file, --glyphs, |
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--glyphs-file, --unicodes-file, supporting ranges in --unicodes. |
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- Various bug fixes. |
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Overview of changes leading to 2.8.2 |
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Tuesday, July 8, 2021 |
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==================================== |
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- Shaping LTR digits for RTL scripts now makes the native direction of the |
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digits LTR, applying shaping and positioning rules on the same glyph order as |
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Uniscribe. (Jonathan Kew, Khaled Hosny). |
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- Subsetting COLR v1 and CPAL tables is now supported. (Garret Rieger, Qunxin Liu) |
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- Various fixes and improvements to the subsetter. (Garret Rieger, Qunxin Liu, Behdad) |
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- When applying morx table, mark glyph widths should not be zeroed. (Jonathan Kew) |
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- GPOS is preferred over kerx, if GSUB was applied. (Behdad) |
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- Regional_Indicator pairs are grouped together when clustering. (Behdad) |
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- New API: |
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+hb_blob_create_or_fail() |
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+hb_blob_create_from_file_or_fail() |
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+hb_set_copy() |
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Overview of changes leading to 2.8.1 |
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Tuesday, May 4, 2021 |
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==================================== |
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- Subsetter now fully supports GSUB/GPOS/GDEF tables (including variations); as |
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such, layout tables are retained by subsetter by default. (Garret Rieger, Qunxin Liu) |
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- Build scripts no longer check for FontConfig as HarfBuzz does not use it. |
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- hb-view supports iTerm2 and kitty inline image protocols (Khaled Hosny), |
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it can also use Chafa for terminal graphics if available (Hans Petter Jansson). |
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Overview of changes leading to 2.8.0 |
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Tuesday, March 16, 2021 |
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==================================== |
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- Shape joining scripts other than Arabic/Syriac using the Universal Shaping Engine. |
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Previously these were shaped using the generalized Arabic shaper. (David Corbett) |
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- Fix regression in shaping of U+0B55 ORIYA SIGN OVERLINE. (David Corbett) |
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- Update language tags. (David Corbett) |
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- Variations: reduce error: do not round each interpolated delta. (Just van Rossum) |
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- Documentation improvements. (Khaled Hosny, Nathan Willis) |
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- Subsetter improvements: subsets most, if not all, lookup types now. (Garret Rieger, Qunxin Liu) |
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- Fuzzer-found fixes and other improvements when memory failures happen. (Behdad) |
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- Removed most atomic implementations now that we have C++11 atomic impl. (Behdad) |
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- General codebase upkeep; using more C++11 features: constexpr constructors, etc. (Behdad) |
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Overview of changes leading to 2.7.4 |
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Sunday, December 27, 2020 |
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==================================== |
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- Fix missing --enable-introspection configure option from previous release |
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tarball. |
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- Documentation updates. |
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Overview of changes leading to 2.7.3 |
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Wednesday, December 23, 2020 |
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==================================== |
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- Update USE shaper to 2020-08-13 specification, and other improvements. |
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- Don’t disable liga feature in myanmar shaper, to match Uniscribe. |
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- Improvements to language and script tags handling. |
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- Update language system tag registry to OpenType 1.8.4 |
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- Support for serializing and deserializing Unicode buffers. Serialized buffers |
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are now delimited with `<>` or `[]` based on whether it is a Unicode or |
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glyphs buffer. |
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- Increase buffer work limits to handle fonts with many complex lookups. |
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- Handle more shaping operations in trace output. |
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- Memory access fixes. |
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- More OOM fixes. |
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- Improved documentation. |
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- Build system improvements. |
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- New API: |
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+hb_buffer_has_positions() |
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+hb_buffer_serialize() |
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+hb_buffer_serialize_unicode() |
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+hb_buffer_deserialize_unicode() |
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Overview of changes leading to 2.7.2 |
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Saturday, August 29, 2020 |
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==================================== |
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- Fix a regression in the previous release that caused a crash with Kaithi. |
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- More OOM fixes. |
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Overview of changes leading to 2.7.1 |
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Thursday, August 13, 2020 |
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==================================== |
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- ot-funcs now handles variable empty glyphs better when hvar/vvar isn't present. |
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- Reverted a GDEF processing regression. |
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- A couple of fixes to handle OOM better. |
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Overview of changes leading to 2.7.0 |
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Saturday, July 25, 2020 |
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==================================== |
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- Use an implementation for round that always rounds up, some minor fluctuations |
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are expected on var font specially when hb-ot callback is used. |
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- Fix an AAT's `kerx` issue on broken rendering of Devanagari Sangam MN. |
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- Remove AAT's `lcar` table support from _get_ligature_carets API, not even much |
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use on macOS installed fonts (only two files). GDEF support is the recommended |
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one and expected to work properly after issues fixed two releases ago. |
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- Minor memory fixes to handle OOM better specially in hb-ft. |
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- Minor .so files versioning scheme change and remove stable/unstable scheme |
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differences, was never used in practice (always default to stable scheme). |
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- We are now suggesting careful packaging of the library using meson, |
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https://github.com/harfbuzz/harfbuzz/wiki/Notes-on-migration-to-meson |
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for more information. |
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- Distribution package URL is changed, either use GitHub generated tarballs, |
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`https://github.com/harfbuzz/harfbuzz/archive/$pkgver.tar.gz` |
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or, even more preferably use commit hash of the release and git checkouts like, |
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`git+https://github.com/harfbuzz/harfbuzz#commit=$commit` |
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Overview of changes leading to 2.6.8 |
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Monday, June 22, 2020 |
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==================================== |
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- New API to fetch glyph alternates from GSUB table. |
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- hb-coretext build fix for macOS < 10.10. |
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- Meson build fixes, cmake port removal is postponed but please prepare for |
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it and give us feedback. |
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Autotools is still our main build system however please consider |
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experimenting with meson also for packaging the library. |
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- 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() |
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hb_font_funcs_set_glyph_h_origin_func() |
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hb_font_funcs_set_glyph_v_origin_func() |
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hb_font_funcs_set_glyph_h_kerning_func() |
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hb_font_funcs_set_glyph_v_kerning_func() |
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hb_font_get_glyph_h_advance() |
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hb_font_get_glyph_v_advance() |
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hb_font_get_glyph_h_origin() |
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hb_font_get_glyph_v_origin() |
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hb_font_get_glyph_h_kerning() |
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hb_font_get_glyph_v_kerning() |
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o The following higher-leve API added for convenience: |
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hb_font_get_glyph_advance_for_direction() |
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hb_font_get_glyph_origin_for_direction() |
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hb_font_add_glyph_origin_for_direction() |
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hb_font_subtract_glyph_origin_for_direction() |
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hb_font_get_glyph_kerning_for_direction() |
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hb_font_get_glyph_extents_for_origin() |
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hb_font_get_glyph_contour_point_for_origin() |
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* OpenType Layout API: |
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o New API: |
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hb_ot_layout_position_start() |
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hb_ot_layout_substitute_start() |
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hb_ot_layout_substitute_finish() |
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* Glue code: |
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o New API: |
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hb_glib_script_to_script() |
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hb_glib_script_from_script() |
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hb_icu_script_to_script() |
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hb_icu_script_from_script() |
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* Version API added: |
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o New API: |
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HB_VERSION_MAJOR |
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HB_VERSION_MINOR |
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HB_VERSION_MICRO |
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HB_VERSION_STRING |
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HB_VERSION_CHECK() |
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hb_version() |
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hb_version_string() |
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hb_version_check() |
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