| 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 parameteres, |
| meaning "nul-terminated". |
| |
| - hb_direction_t enum values changed. |
| |
| - All *_from_string() APIs now take a length parameter to allow for |
| non-nul-terminated strings. A -1 length means "nul-terminated". |
| |
| - Typedef for hb_language_t changed. |
| |
| - hb_get_table_func_t renamed to hb_reference_table_func_t. |
| |
| - hb_ot_layout_table_choose_script() |
| |
| - Various renames in hb-unicode.h. |
| |
| o New API: |
| |
| - hb_buffer_guess_properties() |
| Automatically called by hb_shape(). |
| |
| - hb_buffer_normalize_glyphs() |
| |
| - hb_tag_from_string() |
| |
| - hb-coretext.h |
| |
| - hb-uniscribe.h |
| |
| - hb_face_reference_blob() |
| - hb_face_[sg]et_index() |
| - hb_face_set_upem() |
| |
| - hb_font_get_glyph_name_func_t |
| hb_font_get_glyph_from_name_func_t |
| hb_font_funcs_set_glyph_name_func() |
| hb_font_funcs_set_glyph_from_name_func() |
| hb_font_get_glyph_name() |
| hb_font_get_glyph_from_name() |
| hb_font_glyph_to_string() |
| hb_font_glyph_from_string() |
| |
| - hb_font_set_funcs_data() |
| |
| - hb_ft_font_set_funcs() |
| - hb_ft_font_get_face() |
| |
| - hb-gobject.h (work in progress) |
| |
| - hb_ot_shape_glyphs_closure() |
| hb_ot_layout_substitute_closure_lookup() |
| |
| - hb-set.h |
| |
| - hb_shape_full() |
| |
| - hb_unicode_combining_class_t |
| |
| - hb_unicode_compose_func_t |
| hb_unicode_decompose_func_t |
| hb_unicode_decompose_compatibility_func_t |
| hb_unicode_funcs_set_compose_func() |
| hb_unicode_funcs_set_decompose_func() |
| hb_unicode_funcs_set_decompose_compatibility_func() |
| hb_unicode_compose() |
| hb_unicode_decompose() |
| hb_unicode_decompose_compatibility() |
| |
| o Removed API: |
| |
| - hb_ft_get_font_funcs() |
| |
| - hb_ot_layout_substitute_start() |
| hb_ot_layout_substitute_lookup() |
| hb_ot_layout_substitute_finish() |
| hb_ot_layout_position_start() |
| hb_ot_layout_position_lookup() |
| hb_ot_layout_position_finish() |
| |
| |
| |
| Overview of changes leading to 0.6.0 |
| Friday, May 27, 2011 |
| ==================================== |
| |
| - Vertical text support in GPOS |
| - Almost all API entries have unit tests now, under test/ |
| - All thread-safety issues are fixed |
| |
| Summary of API changes follows. |
| |
| |
| * Simple Types API: |
| |
| o New API: |
| HB_LANGUAGE_INVALID |
| hb_language_get_default() |
| hb_direction_to_string() |
| hb_direction_from_string() |
| hb_script_get_horizontal_direction() |
| HB_UNTAG() |
| |
| o Renamed API: |
| hb_category_t renamed to hb_unicode_general_category_t |
| |
| o Changed API: |
| hb_language_t is a typed pointers now |
| |
| o Removed API: |
| HB_TAG_STR() |
| |
| |
| * Use ISO 15924 tags for hb_script_t: |
| |
| o New API: |
| hb_script_from_iso15924_tag() |
| hb_script_to_iso15924_tag() |
| hb_script_from_string() |
| |
| o Changed API: |
| HB_SCRIPT_* enum members changed value. |
| |
| |
| * Buffer API streamlined: |
| |
| o New API: |
| hb_buffer_reset() |
| hb_buffer_set_length() |
| hb_buffer_allocation_successful() |
| |
| o Renamed API: |
| hb_buffer_ensure() renamed to hb_buffer_pre_allocate() |
| hb_buffer_add_glyph() renamed to hb_buffer_add() |
| |
| o Removed API: |
| hb_buffer_clear() |
| hb_buffer_clear_positions() |
| |
| o Changed API: |
| hb_buffer_get_glyph_infos() takes an out length parameter now |
| hb_buffer_get_glyph_positions() takes an out length parameter now |
| |
| |
| * Blob API streamlined: |
| |
| o New API: |
| hb_blob_get_data() |
| hb_blob_get_data_writable() |
| |
| o Renamed API: |
| hb_blob_create_empty() renamed to hb_blob_get_empty() |
| |
| o Removed API: |
| hb_blob_lock() |
| hb_blob_unlock() |
| hb_blob_is_writable() |
| hb_blob_try_writable() |
| |
| o Changed API: |
| hb_blob_create() takes user_data before destroy now |
| |
| |
| * Unicode functions API: |
| |
| o Unicode function vectors can subclass other unicode function vectors now. |
| Unimplemented callbacks in the subclass automatically chainup to the parent. |
| |
| o All hb_unicode_funcs_t callbacks take a user_data now. Their setters |
| take a user_data and its respective destroy callback. |
| |
| o New API: |
| hb_unicode_funcs_get_empty() |
| hb_unicode_funcs_get_default() |
| hb_unicode_funcs_get_parent() |
| |
| o Changed API: |
| hb_unicode_funcs_create() now takes a parent_funcs. |
| |
| o Removed func getter functions: |
| hb_unicode_funcs_get_mirroring_func() |
| hb_unicode_funcs_get_general_category_func() |
| hb_unicode_funcs_get_script_func() |
| hb_unicode_funcs_get_combining_class_func() |
| hb_unicode_funcs_get_eastasian_width_func() |
| |
| |
| * Face API: |
| |
| o Renamed API: |
| hb_face_get_table() renamed to hb_face_reference_table() |
| hb_face_create_for_data() renamed to hb_face_create() |
| |
| o Changed API: |
| hb_face_create_for_tables() takes user_data before destroy now |
| hb_face_reference_table() returns empty blob instead of NULL |
| hb_get_table_func_t accepts the face as first parameter now |
| |
| * Font API: |
| |
| o Fonts can subclass other fonts now. Unimplemented callbacks in the |
| subclass automatically chainup to the parent. When chaining up, |
| scale is adjusted if the parent font has a different scale. |
| |
| o All hb_font_funcs_t callbacks take a user_data now. Their setters |
| take a user_data and its respective destroy callback. |
| |
| o New API: |
| hb_font_get_parent() |
| hb_font_funcs_get_empty() |
| hb_font_create_sub_font() |
| |
| o Removed API: |
| hb_font_funcs_copy() |
| hb_font_unset_funcs() |
| |
| o Removed func getter functions: |
| hb_font_funcs_get_glyph_func() |
| hb_font_funcs_get_glyph_advance_func() |
| hb_font_funcs_get_glyph_extents_func() |
| hb_font_funcs_get_contour_point_func() |
| hb_font_funcs_get_kerning_func() |
| |
| o Changed API: |
| hb_font_create() takes a face and references it now |
| hb_font_set_funcs() takes user_data before destroy now |
| hb_font_set_scale() accepts signed integers now |
| hb_font_get_contour_point_func_t now takes glyph first, then point_index |
| hb_font_get_glyph_func_t returns a success boolean now |
| |
| |
| * Changed object model: |
| |
| o All object types have a _get_empty() now: |
| hb_blob_get_empty() |
| hb_buffer_get_empty() |
| hb_face_get_empty() |
| hb_font_get_empty() |
| hb_font_funcs_get_empty() |
| hb_unicode_funcs_get_empty() |
| |
| o Added _set_user_data() and _get_user_data() for all object types: |
| hb_blob_get_user_data() |
| hb_blob_set_user_data() |
| hb_buffer_get_user_data() |
| hb_buffer_set_user_data() |
| hb_face_get_user_data() |
| hb_face_set_user_data() |
| hb_font_funcs_get_user_data() |
| hb_font_funcs_set_user_data() |
| hb_font_get_user_data() |
| hb_font_set_user_data() |
| hb_unicode_funcs_get_user_data() |
| hb_unicode_funcs_set_user_data() |
| |
| o Removed the _get_reference_count() from all object types: |
| hb_blob_get_reference_count() |
| hb_buffer_get_reference_count() |
| hb_face_get_reference_count() |
| hb_font_funcs_get_reference_count() |
| hb_font_get_reference_count() |
| hb_unicode_funcs_get_reference_count() |
| |
| o Added _make_immutable() and _is_immutable() for all object types except for buffer: |
| hb_blob_make_immutable() |
| hb_blob_is_immutable() |
| hb_face_make_immutable() |
| hb_face_is_immutable() |
| |
| |
| * Changed API for vertical text support |
| |
| o The following callbacks where removed: |
| hb_font_get_glyph_advance_func_t |
| hb_font_get_kerning_func_t |
| |
| o The following new callbacks added instead: |
| hb_font_get_glyph_h_advance_func_t |
| hb_font_get_glyph_v_advance_func_t |
| hb_font_get_glyph_h_origin_func_t |
| hb_font_get_glyph_v_origin_func_t |
| hb_font_get_glyph_h_kerning_func_t |
| hb_font_get_glyph_v_kerning_func_t |
| |
| o The following API removed as such: |
| hb_font_funcs_set_glyph_advance_func() |
| hb_font_funcs_set_kerning_func() |
| hb_font_get_glyph_advance() |
| hb_font_get_kerning() |
| |
| o New API added instead: |
| hb_font_funcs_set_glyph_h_advance_func() |
| hb_font_funcs_set_glyph_v_advance_func() |
| hb_font_funcs_set_glyph_h_origin_func() |
| hb_font_funcs_set_glyph_v_origin_func() |
| hb_font_funcs_set_glyph_h_kerning_func() |
| hb_font_funcs_set_glyph_v_kerning_func() |
| hb_font_get_glyph_h_advance() |
| hb_font_get_glyph_v_advance() |
| hb_font_get_glyph_h_origin() |
| hb_font_get_glyph_v_origin() |
| hb_font_get_glyph_h_kerning() |
| hb_font_get_glyph_v_kerning() |
| |
| o The following higher-leve API added for convenience: |
| hb_font_get_glyph_advance_for_direction() |
| hb_font_get_glyph_origin_for_direction() |
| hb_font_add_glyph_origin_for_direction() |
| hb_font_subtract_glyph_origin_for_direction() |
| hb_font_get_glyph_kerning_for_direction() |
| hb_font_get_glyph_extents_for_origin() |
| hb_font_get_glyph_contour_point_for_origin() |
| |
| |
| * OpenType Layout API: |
| |
| o New API: |
| hb_ot_layout_position_start() |
| hb_ot_layout_substitute_start() |
| hb_ot_layout_substitute_finish() |
| |
| |
| * Glue code: |
| |
| o New API: |
| hb_glib_script_to_script() |
| hb_glib_script_from_script() |
| hb_icu_script_to_script() |
| hb_icu_script_from_script() |
| |
| |
| * Version API added: |
| |
| o New API: |
| HB_VERSION_MAJOR |
| HB_VERSION_MINOR |
| HB_VERSION_MICRO |
| HB_VERSION_STRING |
| HB_VERSION_CHECK() |
| hb_version() |
| hb_version_string() |
| hb_version_check() |
| |
| |
