3212 lines
102 KiB
Plaintext
3212 lines
102 KiB
Plaintext
Overview of changes leading to 7.0.0
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Saturday, February 11, 2023
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====================================
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- New hb-paint API that is designed mainly to paint “COLRv1” glyphs, but can be
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also used as a unified API to paint any of the glyph representations
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supported by HarfBuzz (B/W outlines, color layers, or color bitmaps).
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(Behdad Esfahbod, Matthias Clasen)
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- New hb-cairo API for integrating with cairo graphics library. This is provided
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as a separate harfbuzz-cairo library. (Behdad Esfahbod, Matthias Clasen)
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- Support for instancing “CFF2” table. (Behdad Esfahbod)
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- Support font emboldening. (Behdad Esfahbod)
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- Support feature ranges with AAT shaping. (Behdad Esfahbod)
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- Experimental support to cubic curves in “glyf” table, see
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https://github.com/harfbuzz/boring-expansion-spec/blob/main/glyf1-cubicOutlines.md
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for spec. (Behdad Esfahbod)
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- Various subsetter improvements. (Garret Rieger, Qunxin Liu, Behdad Esfahbod)
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- Various documentation improvements.
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(Behdad Esfahbod, Matthias Clasen, Khaled Hosny)
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- Significantly reduced memory use during shaping. (Behdad Esfahbod)
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- Greatly reduced memory use during subsetting “CFF” table. (Behdad Esfahbod)
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- New command line utility, hb-info, for querying various font information.
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(Behdad Esfahbod, Matthias Clasen)
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- New hb-shape/hb-view options: --glyphs, --color-palette, --font-bold,
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--font-grade, and --named-instance. (Behdad Esfahbod)
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- Miscellaneous fixes and improvements.
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(Amir Masoud Abdol, Andres Salomon, Behdad Esfahbod, Chun-wei Fan,
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Garret Rieger, Jens Kutilek, Khaled Hosny, Konstantin Käfer, Matthias Clasen,
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Nirbheek Chauhan, Pedro J. Estébanez, Qunxin Liu, Sergei Trofimovich)
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- New API:
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+HB_FONT_NO_VAR_NAMED_INSTANCE
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+HB_PAINT_IMAGE_FORMAT_BGRA
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+HB_PAINT_IMAGE_FORMAT_PNG
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+HB_PAINT_IMAGE_FORMAT_SVG
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+hb_cairo_font_face_create_for_face
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+hb_cairo_font_face_create_for_font
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+hb_cairo_font_face_get_face
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+hb_cairo_font_face_get_font
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+hb_cairo_font_face_get_scale_factor
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+hb_cairo_font_face_set_font_init_func
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+hb_cairo_font_face_set_scale_factor
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+hb_cairo_font_init_func_t
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+hb_cairo_glyphs_from_buffer
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+hb_cairo_scaled_font_get_font
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+hb_color_line_get_color_stops
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+hb_color_line_get_color_stops_func_t
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+hb_color_line_get_extend
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+hb_color_line_get_extend_func_t
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+hb_color_line_t
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+hb_color_stop_t
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+hb_draw_funcs_get_empty
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+hb_draw_funcs_get_user_data
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+hb_draw_funcs_set_user_data
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+hb_face_collect_nominal_glyph_mapping
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+hb_font_draw_glyph
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+hb_font_draw_glyph_func_t
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+hb_font_funcs_set_draw_glyph_func
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+hb_font_funcs_set_paint_glyph_func
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+hb_font_get_synthetic_bold
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+hb_font_get_var_named_instance
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+hb_font_paint_glyph
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+hb_font_paint_glyph_func_t
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+hb_font_set_synthetic_bold
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+hb_map_keys
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+hb_map_next
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+hb_map_update
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+hb_map_values
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+hb_ot_color_glyph_has_paint
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+hb_ot_color_has_paint
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+hb_ot_layout_script_select_language2
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+hb_ot_name_id_predefined_t
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+hb_paint_color
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+hb_paint_color_func_t
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+hb_paint_composite_mode_t
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+hb_paint_custom_palette_color
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+hb_paint_custom_palette_color_func_t
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+hb_paint_extend_t
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+hb_paint_funcs_create
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+hb_paint_funcs_destroy
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+hb_paint_funcs_get_empty
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+hb_paint_funcs_get_user_data
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+hb_paint_funcs_is_immutable
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+hb_paint_funcs_make_immutable
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+hb_paint_funcs_reference
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+hb_paint_funcs_set_color_func
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+hb_paint_funcs_set_custom_palette_color_func
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+hb_paint_funcs_set_image_func
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+hb_paint_funcs_set_linear_gradient_func
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+hb_paint_funcs_set_pop_clip_func
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+hb_paint_funcs_set_pop_group_func
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+hb_paint_funcs_set_pop_transform_func
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+hb_paint_funcs_set_push_clip_glyph_func
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+hb_paint_funcs_set_push_clip_rectangle_func
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+hb_paint_funcs_set_push_group_func
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+hb_paint_funcs_set_push_transform_func
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+hb_paint_funcs_set_radial_gradient_func
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+hb_paint_funcs_set_sweep_gradient_func
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+hb_paint_funcs_set_user_data
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+hb_paint_funcs_t
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+hb_paint_image
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+hb_paint_image_func_t
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+hb_paint_linear_gradient
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+hb_paint_linear_gradient_func_t
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+hb_paint_pop_clip
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+hb_paint_pop_clip_func_t
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+hb_paint_pop_group
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+hb_paint_pop_group_func_t
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+hb_paint_pop_transform
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+hb_paint_pop_transform_func_t
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+hb_paint_push_clip_glyph
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+hb_paint_push_clip_glyph_func_t
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+hb_paint_push_clip_rectangle
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+hb_paint_push_clip_rectangle_func_t
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+hb_paint_push_group
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+hb_paint_push_group_func_t
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+hb_paint_push_transform
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+hb_paint_push_transform_func_t
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+hb_paint_radial_gradient
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+hb_paint_radial_gradient_func_t
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+hb_paint_sweep_gradient
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+hb_paint_sweep_gradient_func_t
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+hb_set_is_inverted
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+hb_subset_input_keep_everything
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- Deprecated API:
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+hb_font_funcs_set_glyph_shape_func
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+hb_font_get_glyph_shape_func_t
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+hb_font_get_glyph_shape
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Overview of changes leading to 6.0.0
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Friday, December 16, 2022
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====================================
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- A new API have been added to pre-process the face and speed up future
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subsetting operations on that face. Provides up to a 95% reduction in
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subsetting times when the same face is subset more than once.
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For more details and benchmarks, see:
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https://github.com/harfbuzz/harfbuzz/blob/main/docs/subset-preprocessing.md
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(Garret Rieger, Behdad Esfahbod)
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- Shaping have been speedup by skipping entire lookups when the buffer contents
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don't intersect with the lookup. Shows up to a 10% speedup in shaping some
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fonts. (Behdad Esfahbod)
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- A new experimental feature, “Variable Composites” (enabled by passing
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-Dexperimental_api=true to meson), is also featured in this release.
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This technology enables drastic compression of fonts in the Chinese,
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Japanese, Korean, and other writing systems, by reusing the OpenType Font
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Variations technology for encoding “smart components” into the font.
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The specification for these extensions to the font format can be found in:
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https://github.com/harfbuzz/boring-expansion-spec/blob/glyf1/glyf1.md
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A test variable-font with ~7160 Hangul syllables derived from the
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NotoSerifKR-VF font has been built, with existing OpenType technology, as
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well as with the new Variable Composites (VarComposites) technology. The
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VarComposites font is over 90% smaller than the OpenType version of the font!
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Both fonts can be obtained from the “smarties” repository:
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https://github.com/behdad/smarties/tree/3.0/fonts/hangul/serif
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When building HarfBuzz with experimental features enabled, you can test
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the “smarties” font with a sample character like this:
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$ hb-view butchered-hangul-serif-smarties-variable.ttf -u AE01 --variations=wght=700
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(Behdad Esfahbod)
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- The HarfBuzz subsetter can now drop axes by pinning them to specific values
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(also referred to as instancing). There are a couple of restrictions
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currently:
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- Only works with TrueType (“glyf”) based fonts. “CFF2” fonts are not yet
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supported.
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- Only supports the case where all axes in a font are pinned.
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(Garret Rieger, Qunxin Liu)
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- Miscellaneous fixes and improvements.
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(Behdad Esfahbod, Christoph Reiter, David Corbett, Eli Schwartz, Garret
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Rieger, Joel Auterson, Jordan Petridis, Khaled Hosny, Lorenz Wildberg,
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Marco Rebhan, Martin Storsjö, Matthias Clasen, Qunxin Liu, Satadru Pramanik)
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- New API
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+hb_subset_input_pin_axis_location()
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+hb_subset_input_pin_axis_to_default()
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+hb_subset_preprocess()
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Overview of changes leading to 5.3.1
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Wednesday, October 19, 2022
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====================================
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- Subsetter repacker fixes. (Garret Rieger)
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- Adjust Grapheme clusters for Katakana voiced sound marks. (Behdad Esfahbod)
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- New “hb-subset” option “--preprocess-face”. (Garret Rieger)
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Overview of changes leading to 5.3.0
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Saturday, October 8, 2022
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"Women, Life, Freedom" #MahsaAmini
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====================================
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- Don’t add glyphs from dropped MATH or COLR tables to the subset glyphs.
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(Khaled Hosny)
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- Map “rlig” to appropriate AAT feature selectors. (Jonathan Kew)
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- Update USE data files to latest version. (David Corbett)
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- Check “CBDT” extents first before outline tables, to help with fonts that
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also include an empty “glyf” table. (Khaled Hosny)
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- More work towards variable font instancing in the subsetter. (Qunxin Liu)
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- Subsetter repacker improvements. (Garret Rieger)
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- New API:
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+hb_ot_layout_lookup_get_optical_bound()
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+hb_face_builder_sort_tables()
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Overview of changes leading to 5.2.0
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Saturday, September 17, 2022
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====================================
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- Fix regressions in hb-ft font functions for FT_Face’s with transformation
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matrix. (Behdad Esfahbod)
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- The experimental hb-repacker API now supports splitting several GPOS subtable
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types when needed. (Garret Rieger)
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- The HarfBuzz extensions to OpenType font format are now opt-in behind
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build-time flags. (Behdad Esfahbod)
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- The experimental hb-subset variable fonts instantiation API can now
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instantiate more font tables and arbitrary axis locations. (Qunxin Liu)
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- Unicode 15 support. (David Corbett)
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- Various documentation improvements. (Behdad Esfahbod, Matthias Clasen)
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- The hb-view command line tool now detects WezTerm inline images support.
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(Wez Furlong)
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- Fix FreeType and ICU dependency lookup with meson. (Xavier Claessens)
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- New API:
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+HB_SCRIPT_KAWI
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+HB_SCRIPT_NAG_MUNDARI
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Overview of changes leading to 5.1.0
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Sunday, July 31, 2022
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====================================
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- More extensive buffer tracing messages. (Behdad Esfahbod)
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- Fix hb-ft regression in bitmap fonts rendering. (Behdad Esfahbod)
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- Support extension promotion of lookups in hb-subset-repacker. (Garret Rieger)
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- A new HB_GLYPH_FLAG_SAFE_TO_INSERT_TATWEEL for scripts that use elongation
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(e.g. Arabic) to signify where it is safe to insert tatweel glyph without
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interrupting shaping. (Behdad Esfahbod)
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- Add “--safe-to-insert-tatweel” to “hb-shape” tool. (Behdad Esfahbod)
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- New API
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+HB_GLYPH_FLAG_SAFE_TO_INSERT_TATWEEL
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+HB_BUFFER_FLAG_PRODUCE_SAFE_TO_INSERT_TATWEEL
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Overview of changes leading to 5.0.1
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Saturday, July 23, 2022
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====================================
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- Fix version 2 “avar” table with hb-ft. (Behdad Esfahbod)
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Overview of changes leading to 5.0.0
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Saturday, July 23, 2022
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====================================
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- Support fonts with more than 65535 glyphs in “GDEF”, “GSUB”, and “GPOS”
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tables. This is part of https://github.com/be-fonts/boring-expansion-spec to
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extend OpenType in a backward-compatible way.
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(Behdad Esfahbod, Garret Rieger)
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- Complete support for more than 65535 glyphs in “glyf” table that started in
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4.0.0 release. Part of boring-expansion-spec. (Behdad Esfahbod)
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- Support version 2 of “avar” table. Part of boring-expansion-spec.
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(Behdad Esfahbod)
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- Fix mark attachment on multiple substitutions in some cases.
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(Behdad Esfahbod)
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- Fix application of “calt”, “rclt”, and “ccmp” features to better match
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Uniscribe behaviour with some Arabic fonts. (Behdad Esfahbod)
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- Improvement to interaction between multiple cursive attachments.
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(Behdad Esfahbod)
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- Improve multiple mark interactions in Hebrew. (Behdad Esfahbod)
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- Implement language-specific forms in AAT shaping. (Behdad Esfahbod)
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- Fix variation of “VORG” table. (Behdad Esfahbod)
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- Support for specific script tags to be retained in the subsetter, and add
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“--layout-scripts” option to “hb-subset” tool. (Garret Rieger)
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- Accept space as delimiter for --features/--variations in command line tools.
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- Improve subsetting of “COLR” table. (Qunxin Liu)
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- Improved fuzzing coverage for ot-math API. (Frédéric Wang)
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- Fix “kern” table version 2 (AAT) sanitization on 32-bit systems.
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(Behdad Esfahbod)
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- Allow negative glyph advances from “graphite2” shaper. (Stephan Bergmann)
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- Implement loading (color) bitmap fonts with hb-ft. (Behdad Esfahbod)
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- Fix regression in hb-ft when changing font size. (Behdad Esfahbod)
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- Fix build on GCC < 7. (Kleis Auke Wolthuizen)
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- Dynamically load dwrite.dll on windows if “directwrite” shaper is enabled.
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(Luca Bacci)
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- Provide a single-file harfbuzz-subset.cc file for easier alternate building
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of hb-subset library, similar to harfbuzz.cc. (Khaled Hosny)
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- New API
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+HB_SUBSET_SETS_LAYOUT_SCRIPT_TAG
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+hb_language_matches()
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Overview of changes leading to 4.4.1
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Wednesday, June 29, 2022
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====================================
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- Fix test failure with some compilers.
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- Fix Telugu and Kannada kerning regression.
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Overview of changes leading to 4.4.0
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Monday, June 27, 2022
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====================================
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- Caching of variable fonts shaping, in particular when using HarfBuzz’s own
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font loading functions (ot). Bringing performance of variable shaping in par
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with non-variable fonts shaping. (Behdad Esfahbod)
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- Caching of format 2 “Contextual Substitution” and “Chained Contexts
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Substitution” lookups. Resulting in up to 20% speedup of lookup-heavy fonts
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like Gulzar or Noto Nastaliq Urdu. (Behdad Esfahbod)
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- Improved ANSI output from hb-view. (Behdad Esfahbod)
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- Support for shaping legacy, pre-OpenType Windows 3.1-era, Arabic fonts that
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relied on a fixed PUA encoding. (Khaled Hosny, Behdad Esfahbod)
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- Sinhala script is now shaped by the USE shaper instead of “indic” one.
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(Behdad Esfahbod, David Corbett)
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- Thai shaper improvements. (David Corbett)
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- hb-ot-name API supports approximate BCP-47 language matching, for example
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asking for “en_US” in a font that has only “en” names will return them.
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(Behdad Esfahbod)
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- Optimized TrueType glyph shape loading. (Behdad Esfahbod)
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- Fix subsetting of HarfBuzz faces created via hb_face_create_for_tables().
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(Garret Rieger)
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- Add 32 bit var store support to the subsetter. (Garret Rieger)
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- New API
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+HB_BUFFER_FLAG_DEFINED
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+HB_BUFFER_SERIALIZE_FLAG_DEFINED
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+hb_font_changed()
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+hb_font_get_serial()
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+hb_ft_hb_font_changed()
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+hb_set_hash()
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+hb_map_copy()
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+hb_map_hash()
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Overview of changes leading to 4.3.0
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Friday, May 20, 2022
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====================================
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- Major speed up in loading and subsetting fonts, especially in
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handling CFF table. Subsetting some fonts is now 3 times faster.
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(Behdad Esfahbod, Garret Rieger)
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- Speed up blending CFF2 table. (Behdad Esfahbod)
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- Speed up hb_ot_tags_from_language(). (Behdad Esfahbod, David Corbett)
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- Fix USE classification of U+10A38 to fix multiple marks on single Kharoshthi
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base. (David Corbett)
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- Fix parsing of empty CFF Index. (Behdad Esfahbod)
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- Fix subsetting CPAL table with partial palette overlaps. (Garret Rieger)
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- New API
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+hb_map_is_equal() (Behdad Esfahbod)
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Overview of changes leading to 4.2.1
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Sunday, April 24, 2022
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====================================
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- Make sure hb_blob_create_from_file_or_fail() always returns nullptr in case
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of failure and not empty blob sometimes. (Khaled Hosny)
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- Add --passthrough-tables option to hb-subset. (Cosimo Lupo)
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- Reinstate a pause after basic features in Khmer shaper, fixing a regression
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introduced in previous release. (Behdad Esfahbod)
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- Better handling of Regional_Indicator when shaped with RTL-native scripts,
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reverting earlier fix that caused regressions in AAT shaping. (Behdad Esfahbod)
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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)
|
||
- Update USE shaper to allow any non-numeric tail in a symbol cluster, and
|
||
remove obsolete data overrides. (David Corbett)
|
||
- Fix handling of baseline variations to return correctly scaled values.
|
||
(Matthias Clasen)
|
||
- A new experimental hb_subset_repack_or_fail() to repack an array of objects,
|
||
eliminating offset overflows. The API is not available unless HarfBuzz is
|
||
built with experimental APIs enabled. (Qunxin Liu)
|
||
|
||
- New experimental API
|
||
+hb_link_t
|
||
+hb_object_t
|
||
+hb_subset_repack_or_fail()
|
||
|
||
|
||
Overview of changes leading to 4.0.0
|
||
Tuesday, March 1, 2022
|
||
====================================
|
||
- New public API to create subset plan and gather information on things like
|
||
glyph mappings in the final subset. The plan can then be passed on to perform
|
||
the subsetting operation. (Garret Rieger)
|
||
- Draw API for extracting glyph shapes have been extended and finalized and is
|
||
no longer an experimental API. The draw API supports glyf, CFF and CFF2
|
||
glyph outlines tables, and applies variation settings set on the font as well
|
||
as synthetic slant. The new public API is not backward compatible with the
|
||
previous, non-public, experimental API. (Behdad Esfahbod)
|
||
- The hb-view tool will use HarfBuzz draw API to render the glyphs instead of
|
||
cairo-ft when compiled with Cairo 1.17.5 or newer, setting HB_DRAW
|
||
environment variable to 1 or 0 will force using or not use the draw API,
|
||
respectively. (Behdad Esfahbod)
|
||
- The hb-shape and hb-view tools now default to using HarfBuzz’s own font
|
||
loading functions (ot) instead of FreeType ones (ft). They also have a new
|
||
option, --font-slant, to apply synthetic slant to the font. (Behdad Esfahbod)
|
||
- HarfBuzz now supports more than 65535 (the OpenType limit) glyph shapes and
|
||
metrics. See https://github.com/be-fonts/boring-expansion-spec/issues/6 and
|
||
https://github.com/be-fonts/boring-expansion-spec/issues/7 for details.
|
||
(Behdad Esfahbod)
|
||
- New API to get the dominant horizontal baseline tag for a given script.
|
||
(Behdad Esfahbod)
|
||
- New API to get the baseline positions from the font, and synthesize missing
|
||
ones. As well as new API to get font metrics and synthesize missing ones.
|
||
(Matthias Clasen)
|
||
- Improvements to finding dependencies on Windows when building with Visual
|
||
Studio. (Chun-wei Fan)
|
||
- New buffer flag, HB_BUFFER_FLAG_PRODUCE_UNSAFE_TO_CONCAT, that must be set
|
||
during shaping for HB_GLYPH_FLAG_UNSAFE_TO_CONCAT flag to be reliably
|
||
produced. This is to limit the performance hit of producing this flag to when
|
||
it is actually needed. (Behdad Esfahbod)
|
||
- Documentation improvements. (Matthias Clasen)
|
||
|
||
- New API
|
||
- General:
|
||
+HB_BUFFER_FLAG_PRODUCE_UNSAFE_TO_CONCAT
|
||
+hb_var_num_t
|
||
|
||
- Draw:
|
||
+hb_draw_funcs_t
|
||
+hb_draw_funcs_create()
|
||
+hb_draw_funcs_reference()
|
||
+hb_draw_funcs_destroy()
|
||
+hb_draw_funcs_is_immutable()
|
||
+hb_draw_funcs_make_immutable()
|
||
+hb_draw_move_to_func_t
|
||
+hb_draw_funcs_set_move_to_func()
|
||
+hb_draw_line_to_func_t
|
||
+hb_draw_funcs_set_line_to_func()
|
||
+hb_draw_quadratic_to_func_t
|
||
+hb_draw_funcs_set_quadratic_to_func()
|
||
+hb_draw_cubic_to_func_t
|
||
+hb_draw_funcs_set_cubic_to_func()
|
||
+hb_draw_close_path_func_t
|
||
+hb_draw_funcs_set_close_path_func()
|
||
+hb_draw_state_t
|
||
+HB_DRAW_STATE_DEFAULT
|
||
+hb_draw_move_to()
|
||
+hb_draw_line_to()
|
||
+hb_draw_quadratic_to()
|
||
+hb_draw_cubic_to()
|
||
+hb_draw_close_path()
|
||
+hb_font_get_glyph_shape_func_t
|
||
+hb_font_funcs_set_glyph_shape_func()
|
||
+hb_font_get_glyph_shape()
|
||
|
||
- OpenType layout
|
||
+HB_OT_LAYOUT_BASELINE_TAG_IDEO_FACE_CENTRAL
|
||
+HB_OT_LAYOUT_BASELINE_TAG_IDEO_EMBOX_CENTRAL
|
||
+hb_ot_layout_get_horizontal_baseline_tag_for_script()
|
||
+hb_ot_layout_get_baseline_with_fallback()
|
||
|
||
- Metrics:
|
||
+hb_ot_metrics_get_position_with_fallback()
|
||
|
||
- Subset:
|
||
+hb_subset_plan_t
|
||
+hb_subset_plan_create_or_fail()
|
||
+hb_subset_plan_reference()
|
||
+hb_subset_plan_destroy()
|
||
+hb_subset_plan_set_user_data()
|
||
+hb_subset_plan_get_user_data()
|
||
+hb_subset_plan_execute_or_fail()
|
||
+hb_subset_plan_unicode_to_old_glyph_mapping()
|
||
+hb_subset_plan_new_to_old_glyph_mapping()
|
||
+hb_subset_plan_old_to_new_glyph_mapping()
|
||
|
||
|
||
Overview of changes leading to 3.4.0
|
||
Sunday, February 13, 2022
|
||
====================================
|
||
- Perform sanity checks on shaping results is now part of “harfbuzz” library
|
||
and can be enabled by setting the buffer flag HB_BUFFER_FLAG_VERIFY.
|
||
(Behdad Esfahbod)
|
||
- Arabic Mark Transient Reordering Algorithm have been updated to revision 6.
|
||
(Khaled Hosny)
|
||
- ISO 15924 code for mathematical notation, ‘Zmth’, now maps to the OpenType
|
||
‘math’ tag. (Alexis King)
|
||
- It is now possible to get at once all math kerning values for a given glyph
|
||
at a given corner. (Alexis King)
|
||
- Fix locale_t portability issues on systems the typedef’s it to a void
|
||
pointer. (Behdad Esfahbod)
|
||
|
||
- New API:
|
||
+HB_BUFFER_FLAG_VERIFY
|
||
+HB_OT_TAG_MATH_SCRIPT
|
||
+HB_SCRIPT_MATH
|
||
+hb_ot_math_kern_entry_t
|
||
+hb_ot_math_get_glyph_kernings()
|
||
|
||
- Deprecated API
|
||
+HB_OT_MATH_SCRIPT
|
||
|
||
|
||
Overview of changes leading to 3.3.2
|
||
Sunday, February 6, 2022
|
||
====================================
|
||
- Revert splitting of pair positioning values introduced in 3.3.0 as it proved
|
||
problematic. (Behdad Esfahbod)
|
||
|
||
|
||
Overview of changes leading to 3.3.1
|
||
Monday, January 31, 2022
|
||
====================================
|
||
- Fix heap-use-after-free in harfbuzz-subset introduced in previous release.
|
||
(Garret Rieger)
|
||
|
||
|
||
Overview of changes leading to 3.3.0
|
||
Monday, January 31, 2022
|
||
====================================
|
||
- Improved documentation. (Matthias Clasen)
|
||
- Internal code cleanup, using C++ standard library more. (Behdad Esfahbod)
|
||
- The low 16-bits of face index will be used by hb_face_create() to select a
|
||
face inside a font collection file format, while the high 16-bits will be
|
||
used by hb_font_create() to load the named instance. (Behdad Esfahbod)
|
||
- Glyph positions and other font metrics now apply synthetic slant set by
|
||
hb_font_set_synthetic_slant(), for improved positioning for synthetically
|
||
slanted fonts. (Behdad Esfahbod)
|
||
- Fixed unintentional locale dependency in hb_variation_to_string() for decimal
|
||
point representation. (Matthias Clasen)
|
||
- When applying pair positioning (kerning) the positioning value is split
|
||
between the two sides of the pair for improved cursor positioning between
|
||
such pairs. (Behdad Esfahbod)
|
||
- Introduced new HB_GLYPH_FLAG_UNSAFE_TO_CONCAT, to be used in conjunction
|
||
with HB_GLYPH_FLAG_UNSAFE_TO_BREAK for optimizing re-shaping during line
|
||
breaking. Check the documentation for further details. (Behdad Esfahbod)
|
||
- Improved handling of macrolanguages when mapping BCP 47 codes to OpenType
|
||
tags. (David Corbett)
|
||
|
||
- New API:
|
||
+HB_GLYPH_FLAG_UNSAFE_TO_CONCAT
|
||
+hb_segment_properties_overlay()
|
||
+hb_buffer_create_similar()
|
||
+hb_font_set_synthetic_slant()
|
||
+hb_font_get_synthetic_slant()
|
||
+hb_font_get_var_coords_design()
|
||
|
||
|
||
Overview of changes leading to 3.2.0
|
||
Friday, November 26, 2021
|
||
====================================
|
||
“harfbuzz” library improvements:
|
||
- Fixed shaping of Apple Color Emoji flags in right-to-left context. (Behdad Esfahbod)
|
||
- Fixed positioning of CFF fonts in HB_TINY profile. (Behdad Esfahbod)
|
||
- OpenType 1.9 language tags update. (David Corbett)
|
||
- Add HB_NO_VERTICAL config option.
|
||
- Add HB_CONFIG_OVERRIDE_H for easier configuration. (Behdad Esfahbod)
|
||
|
||
“harfbuzz-subset” library improvements:
|
||
- Improved packing of cmap, loca, and Ligature tables. (Garret Rieger)
|
||
- Significantly improved overflow-resolution strategy in the repacker. (Garret Rieger)
|
||
|
||
|
||
Overview of changes leading to 3.1.2
|
||
Friday, November 26, 2021
|
||
====================================
|
||
- hb-shape / hb-view: revert treating text on the commandline as single
|
||
paragraph (was introduced in 3.0.0); add new --single-par to do that.
|
||
(Behdad Esfahbod)
|
||
- Subsetter bug fixes. (Garret Rieger, Qunxin Liu, Behdad Esfahbod)
|
||
|
||
|
||
Overview of changes leading to 3.1.1
|
||
Wednesday, November 8, 2021
|
||
====================================
|
||
- Work around GCC cast-align error/warning on some platforms. (Behdad Esfahbod)
|
||
- Documentation improvements. (Matthias Clasen)
|
||
|
||
|
||
Overview of changes leading to 3.1.0
|
||
Wednesday, November 3, 2021
|
||
====================================
|
||
- Better offset-overflow handling in the subsetter library. (Garret Rieger)
|
||
- Improved Unicode 14 properties in the USE shaper, and various other USE
|
||
shaper fixes. (David Corbett)
|
||
- MATH and COLR v1 tables subsetting support, and various other subsetter fixes.
|
||
(Qunxin Liu)
|
||
- Support for Pwo Karen / Ason Chin medial la. (Simon Cozens)
|
||
- Apply GPOS positioning when substituting with morx table, if kerx is missing.
|
||
(Behdad Esfahbod)
|
||
- Apply calt and clig features across syllable boundaries in Indic shaper.
|
||
(Behdad Esfahbod)
|
||
- meson option for enabling Graphite 2 has been renamed to graphite2.
|
||
- Build and documentation fixes.
|
||
|
||
- New API:
|
||
+hb_buffer_set_not_found_glyph()
|
||
+hb_buffer_get_not_found_glyph()
|
||
|
||
|
||
Overview of changes leading to 3.0.0
|
||
Friday, September 17, 2021
|
||
====================================
|
||
- Unicode 14.0 support (David Corbett).
|
||
- The hb-subset API and the harfbuzz-subset library's ABI are now declared
|
||
stable. The harfbuzz-subset library would not have been possible without the
|
||
work of Garret Rieger and Qunxin Liu from Google Fonts, and the earlier work
|
||
of Michiharu Ariza from Adobe.
|
||
- The hb-style API is now stable and no longer experimental.
|
||
|
||
- New API:
|
||
+hb_style_tag_t
|
||
+hb_style_get_value()
|
||
+hb_subset_input_t
|
||
+hb_subset_flags_t
|
||
+hb_subset_sets_t
|
||
+hb_subset_input_create_or_fail()
|
||
+hb_subset_input_reference()
|
||
+hb_subset_input_destroy()
|
||
+hb_subset_input_set_user_data()
|
||
+hb_subset_input_get_user_data()
|
||
+hb_subset_input_unicode_set()
|
||
+hb_subset_input_glyph_set()
|
||
+hb_subset_input_set()
|
||
+hb_subset_input_get_flags()
|
||
+hb_subset_input_set_flags()
|
||
+hb_subset_or_fail()
|
||
|
||
- Removed old unstable harfbuzz-subset API:
|
||
-hb_subset_input_nameid_set()
|
||
-hb_subset_input_namelangid_set()
|
||
-hb_subset_input_layout_features_set()
|
||
-hb_subset_input_no_subset_tables_set()
|
||
-hb_subset_input_drop_tables_set()
|
||
-hb_subset_input_set_drop_hints()
|
||
-hb_subset_input_get_drop_hints()
|
||
-hb_subset_input_set_desubroutinize()
|
||
-hb_subset_input_get_desubroutinize()
|
||
-hb_subset_input_set_retain_gids()
|
||
-hb_subset_input_get_retain_gids()
|
||
-hb_subset_input_set_name_legacy()
|
||
-hb_subset_input_get_name_legacy()
|
||
-hb_subset_input_set_overlaps_flag()
|
||
-hb_subset_input_get_overlaps_flag()
|
||
-hb_subset_input_set_notdef_outline()
|
||
-hb_subset_input_get_notdef_outline()
|
||
-hb_subset_input_set_no_prune_unicode_ranges()
|
||
-hb_subset_input_get_no_prune_unicode_ranges()
|
||
-hb_subset()
|
||
|
||
|
||
Overview of changes leading to 2.9.1
|
||
Tuesday, September 7, 2021
|
||
====================================
|
||
- Final subset API is in place and if no issues are discovered, it will be the
|
||
stable subset API of HarfBuzz 3.0.0. Old API is kept to ease transition, but
|
||
will be removed in 3.0.0.
|
||
- Various fuzzer-found bug fixes.
|
||
- hb_buffer_append() now handles the pre- and post-context which previously
|
||
were left unchanged in the destination buffer.
|
||
- hb-view / hb-shape now accept following new arguments:
|
||
o --unicodes-before/after: takes a list of hex numbers that represent Unicode
|
||
codepoints.
|
||
- Undeprecated API:
|
||
hb_set_invert()
|
||
|
||
|
||
Overview of changes leading to 2.9.0
|
||
Wednesday, August 18, 2021
|
||
History Repeats Itself (Afghanistan)
|
||
====================================
|
||
- Subsetter API is being stabilized, with the first stable API to happen in
|
||
3.0.0 release (https://github.com/harfbuzz/harfbuzz/issues/3078).
|
||
- Support multiple variation axes with same tag, aka HOI.
|
||
- The “coretext” testing shaper now passes font variations to CoreText.
|
||
- hb-shape/hb-view does not break line at new lines unless text is read from
|
||
file.
|
||
- hb-view and hb-subset has a --batch now, similar to hb-shape.
|
||
- The --batch mode now uses ; as argument separator instead of : used previously.
|
||
- The --batch in hb-shape does not expect 0th argument anymore. That is, the
|
||
lines read are interpreted as argv[1:], instead of argv[0:].
|
||
- The --batch option has been undocumented. We are ready to document it; send
|
||
feedback if you find it useful.
|
||
- hb-subset got arguments revamps. Added much-requested --gids-file, --glyphs,
|
||
--glyphs-file, --unicodes-file, supporting ranges in --unicodes.
|
||
- Various bug fixes.
|
||
|
||
|
||
Overview of changes leading to 2.8.2
|
||
Tuesday, July 8, 2021
|
||
====================================
|
||
- Shaping LTR digits for RTL scripts now makes the native direction of the
|
||
digits LTR, applying shaping and positioning rules on the same glyph order as
|
||
Uniscribe. (Jonathan Kew, Khaled Hosny).
|
||
- Subsetting COLR v1 and CPAL tables is now supported. (Garret Rieger, Qunxin Liu)
|
||
- Various fixes and improvements to the subsetter. (Garret Rieger, Qunxin Liu, Behdad)
|
||
- When applying morx table, mark glyph widths should not be zeroed. (Jonathan Kew)
|
||
- GPOS is preferred over kerx, if GSUB was applied. (Behdad)
|
||
- Regional_Indicator pairs are grouped together when clustering. (Behdad)
|
||
- New API:
|
||
+hb_blob_create_or_fail()
|
||
+hb_blob_create_from_file_or_fail()
|
||
+hb_set_copy()
|
||
|
||
|
||
Overview of changes leading to 2.8.1
|
||
Tuesday, May 4, 2021
|
||
====================================
|
||
- Subsetter now fully supports GSUB/GPOS/GDEF tables (including variations); as
|
||
such, layout tables are retained by subsetter by default. (Garret Rieger, Qunxin Liu)
|
||
- Build scripts no longer check for FontConfig as HarfBuzz does not use it.
|
||
- hb-view supports iTerm2 and kitty inline image protocols (Khaled Hosny),
|
||
it can also use Chafa for terminal graphics if available (Hans Petter Jansson).
|
||
|
||
Overview of changes leading to 2.8.0
|
||
Tuesday, March 16, 2021
|
||
====================================
|
||
- Shape joining scripts other than Arabic/Syriac using the Universal Shaping Engine.
|
||
Previously these were shaped using the generalized Arabic shaper. (David Corbett)
|
||
- Fix regression in shaping of U+0B55 ORIYA SIGN OVERLINE. (David Corbett)
|
||
- Update language tags. (David Corbett)
|
||
- Variations: reduce error: do not round each interpolated delta. (Just van Rossum)
|
||
- Documentation improvements. (Khaled Hosny, Nathan Willis)
|
||
- Subsetter improvements: subsets most, if not all, lookup types now. (Garret Rieger, Qunxin Liu)
|
||
- Fuzzer-found fixes and other improvements when memory failures happen. (Behdad)
|
||
- Removed most atomic implementations now that we have C++11 atomic impl. (Behdad)
|
||
- General codebase upkeep; using more C++11 features: constexpr constructors, etc. (Behdad)
|
||
|
||
|
||
Overview of changes leading to 2.7.4
|
||
Sunday, December 27, 2020
|
||
====================================
|
||
- Fix missing --enable-introspection configure option from previous release
|
||
tarball.
|
||
- Documentation updates.
|
||
|
||
|
||
Overview of changes leading to 2.7.3
|
||
Wednesday, December 23, 2020
|
||
====================================
|
||
- Update USE shaper to 2020-08-13 specification, and other improvements.
|
||
- Don’t disable liga feature in myanmar shaper, to match Uniscribe.
|
||
- Improvements to language and script tags handling.
|
||
- Update language system tag registry to OpenType 1.8.4
|
||
- Support for serializing and deserializing Unicode buffers. Serialized buffers
|
||
are now delimited with `<>` or `[]` based on whether it is a Unicode or
|
||
glyphs buffer.
|
||
- Increase buffer work limits to handle fonts with many complex lookups.
|
||
- Handle more shaping operations in trace output.
|
||
- Memory access fixes.
|
||
- More OOM fixes.
|
||
- Improved documentation.
|
||
- Build system improvements.
|
||
- New API:
|
||
+hb_buffer_has_positions()
|
||
+hb_buffer_serialize()
|
||
+hb_buffer_serialize_unicode()
|
||
+hb_buffer_deserialize_unicode()
|
||
|
||
|
||
Overview of changes leading to 2.7.2
|
||
Saturday, August 29, 2020
|
||
====================================
|
||
- Fix a regression in the previous release that caused a crash with Kaithi.
|
||
- More OOM fixes.
|
||
|
||
|
||
Overview of changes leading to 2.7.1
|
||
Thursday, August 13, 2020
|
||
====================================
|
||
- ot-funcs now handles variable empty glyphs better when hvar/vvar isn't present.
|
||
- Reverted a GDEF processing regression.
|
||
- A couple of fixes to handle OOM better.
|
||
|
||
|
||
Overview of changes leading to 2.7.0
|
||
Saturday, July 25, 2020
|
||
====================================
|
||
- Use an implementation for round that always rounds up, some minor fluctuations
|
||
are expected on var font specially when hb-ot callback is used.
|
||
- Fix an AAT's `kerx` issue on broken rendering of Devanagari Sangam MN.
|
||
- Remove AAT's `lcar` table support from _get_ligature_carets API, not even much
|
||
use on macOS installed fonts (only two files). GDEF support is the recommended
|
||
one and expected to work properly after issues fixed two releases ago.
|
||
- Minor memory fixes to handle OOM better specially in hb-ft.
|
||
- Minor .so files versioning scheme change and remove stable/unstable scheme
|
||
differences, was never used in practice (always default to stable scheme).
|
||
- We are now suggesting careful packaging of the library using meson,
|
||
https://github.com/harfbuzz/harfbuzz/wiki/Notes-on-migration-to-meson
|
||
for more information.
|
||
- Distribution package URL is changed, either use GitHub generated tarballs,
|
||
`https://github.com/harfbuzz/harfbuzz/archive/$pkgver.tar.gz`
|
||
or, even more preferably use commit hash of the release and git checkouts like,
|
||
`git+https://github.com/harfbuzz/harfbuzz#commit=$commit`
|
||
|
||
|
||
Overview of changes leading to 2.6.8
|
||
Monday, June 22, 2020
|
||
====================================
|
||
- New API to fetch glyph alternates from GSUB table.
|
||
- hb-coretext build fix for macOS < 10.10.
|
||
- Meson build fixes, cmake port removal is postponed but please prepare for
|
||
it and give us feedback.
|
||
Autotools is still our main build system however please consider
|
||
experimenting with meson also for packaging the library.
|
||
- New API:
|
||
+hb_ot_layout_lookup_get_glyph_alternates()
|
||
|
||
|
||
Overview of changes leading to 2.6.7
|
||
Wednesday, June 3, 2020
|
||
====================================
|
||
- Update to Unicode 13.0.0.
|
||
- Fix hb_ot_layout_get_ligature_carets for fonts without lcar table, it was
|
||
completely broken for all the other fonts since 2.1.2.
|
||
- As a part of our migration to meson, this release will be the last one
|
||
to provide cmake port files but autotools still is our main build system.
|
||
There is a possibility that the next version or the after be released
|
||
using meson.
|
||
|
||
|
||
Overview of changes leading to 2.6.6
|
||
Tuesday, May 12, 2020
|
||
====================================
|
||
- A fix in AAT kerning for Geeza Pro.
|
||
- Better support for resource fork fonts on macOS.
|
||
|
||
|
||
Overview of changes leading to 2.6.5
|
||
Friday, April 17, 2020
|
||
====================================
|
||
- Add experimental meson build system. Autotools is still the primary
|
||
and supported build system.
|
||
- AAT is now always preferred for horizontal scripts when both AAT and OT
|
||
layout tables exist at the same time.
|
||
- Subsetter improvements.
|
||
- New API:
|
||
+hb_ft_font_lock_face()
|
||
+hb_ft_font_unlock_face()
|
||
|
||
|
||
Overview of changes leading to 2.6.4
|
||
Monday, October 29, 2019
|
||
====================================
|
||
- Small bug fix.
|
||
- Build fixes.
|
||
|
||
|
||
Overview of changes leading to 2.6.3
|
||
Monday, October 28, 2019
|
||
====================================
|
||
- Misc small fixes, mostly to build-related issues.
|
||
- New API:
|
||
+hb_font_get_nominal_glyphs()
|
||
|
||
|
||
Overview of changes leading to 2.6.2
|
||
Monday, September 30, 2019
|
||
====================================
|
||
- Misc small fixes, mostly to build-related issues.
|
||
|
||
|
||
Overview of changes leading to 2.6.1
|
||
Thursday, August 22, 2019
|
||
====================================
|
||
- Fix regression with hb_font_create_sub_font scaling introduced in 2.6.0.
|
||
- Change interpretation of font PTEM size / CoreText font size handling.
|
||
See https://github.com/harfbuzz/harfbuzz/pull/1484
|
||
- hb-ot-font: Prefer symbol cmap subtable if present.
|
||
- Apply 'dist'/'abvm'/'blwm' features to all scripts.
|
||
- Drop experimental DirectWrite API.
|
||
|
||
|
||
Overview of changes leading to 2.6.0
|
||
Tuesday, August 13, 2019
|
||
====================================
|
||
- New OpenType metrics, baseline, and metadata table access APIs.
|
||
- New API to set font variations to a named-instance.
|
||
- New hb-gdi.h header and API for creating hb_face_t from HFONT.
|
||
- Amalgam: Provide a single-file harfbuzz.cc file for easier alternate building.
|
||
- More size-reduction configurable options, enabled by HB_TINY.
|
||
- New API:
|
||
+hb_font_set_var_named_instance()
|
||
+hb_gdi_face_create()
|
||
+hb_ot_layout_baseline_tag_t
|
||
+hb_ot_layout_get_baseline()
|
||
+hb_ot_meta_tag_t
|
||
+hb_ot_meta_get_entry_tags()
|
||
+hb_ot_meta_reference_entry()
|
||
+hb_ot_metrics_tag_t
|
||
+hb_ot_metrics_get_position()
|
||
+hb_ot_metrics_get_variation()
|
||
+hb_ot_metrics_get_x_variation()
|
||
+hb_ot_metrics_get_y_variation()
|
||
|
||
|
||
Overview of changes leading to 2.5.3
|
||
Wednesday, June 26, 2019
|
||
====================================
|
||
- Fix UCD script data for Unicode 10+ scripts. This was broken since 2.5.0.
|
||
- More optimizations for HB_TINY.
|
||
|
||
|
||
Overview of changes leading to 2.5.2
|
||
Thursday, June 20, 2019
|
||
====================================
|
||
- More hb-config.hh facilities to shrink library size, namely when built as
|
||
HB_TINY.
|
||
- New documentation of custom configurations in CONFIG.md.
|
||
- Fix build on gcc 4.8. That's supported again.
|
||
- Universal Shaping Engine improvements thanks to David Corbett.
|
||
- API Changes: Undeprecate some horizontal-kerning API and re-enable in hb-ft,
|
||
such that Type1 fonts will continue kerning.
|
||
|
||
|
||
Overview of changes leading to 2.5.1
|
||
Friday, May 31, 2019
|
||
====================================
|
||
- Fix build with various versions of Visual Studio.
|
||
- Improved documentation, thanks to Nathan Willis.
|
||
- Bugfix in subsetting glyf table.
|
||
- Improved scripts for cross-compiling for Windows using mingw.
|
||
- Rename HB_MATH_GLYPH_PART_FLAG_EXTENDER to HB_OT_MATH_GLYPH_PART_FLAG_EXTENDER.
|
||
A deprecated macro is added for backwards-compatibility.
|
||
|
||
|
||
Overview of changes leading to 2.5.0
|
||
Friday, May 24, 2019
|
||
====================================
|
||
- This release does not include much functional changes, but includes major internal
|
||
code-base changes. We now require C++11. Support for gcc 4.8 and earlier has been
|
||
dropped.
|
||
- New hb-config.hh facility for compiling smaller library for embedded and web usecases.
|
||
- New Unicode Character Database implementation that is half the size of previously-used
|
||
UCDN.
|
||
- Subsetter improvements.
|
||
- Improved documentation, thanks to Nathan Willis.
|
||
- Misc shaping fixes.
|
||
|
||
|
||
Overview of changes leading to 2.4.0
|
||
Monday, March 25, 2019
|
||
====================================
|
||
- Unicode 12.
|
||
- Misc fixes.
|
||
- Subsetter improvements.
|
||
- New API:
|
||
HB_BUFFER_FLAG_DO_NOT_INSERT_DOTTED_CIRCLE
|
||
hb_directwrite_face_create()
|
||
|
||
|
||
Overview of changes leading to 2.3.1
|
||
Wednesday, January 30, 2019
|
||
====================================
|
||
- AAT bug fixes.
|
||
- Misc internal housekeeping cleanup.
|
||
|
||
|
||
Overview of changes leading to 2.3.0
|
||
Thursday, December 20, 2018
|
||
====================================
|
||
- Fix regression on big-endian architectures. Ouch!
|
||
- Misc bug and build fixes.
|
||
- Fix subsetting of simple GSUB/GDEF.
|
||
- Merge CFF / CFF2 support contributed by Adobe. This mostly involves
|
||
the subsetter, but also get_glyph_extents on CFF fonts.
|
||
|
||
New API in hb-aat.h:
|
||
+hb_aat_layout_has_substitution()
|
||
+hb_aat_layout_has_positioning()
|
||
+hb_aat_layout_has_tracking()
|
||
|
||
|
||
Overview of changes leading to 2.2.0
|
||
Thursday, November 29, 2018
|
||
====================================
|
||
- Misc shaping bug fixes.
|
||
- Add font variations named-instance API.
|
||
- Deprecate font variations axis enumeration API and add replacement.
|
||
- AAT shaping improvements:
|
||
o Fixed 'kern' table Format 2 implementation.
|
||
o Implement 'feat' table API for feature detection.
|
||
o Blacklist 'GSUB' table of fonts from 'MUTF' foundry that also have 'morx'.
|
||
|
||
New API:
|
||
+hb_aat_layout_feature_type_t
|
||
+hb_aat_layout_feature_selector_t
|
||
+hb_aat_layout_get_feature_types()
|
||
+hb_aat_layout_feature_type_get_name_id
|
||
+hb_aat_layout_feature_selector_info_t
|
||
+HB_AAT_LAYOUT_NO_SELECTOR_INDEX
|
||
+hb_aat_layout_feature_type_get_selector_infos()
|
||
+hb_ot_var_axis_flags_t
|
||
+hb_ot_var_axis_info_t
|
||
+hb_ot_var_get_axis_infos()
|
||
+hb_ot_var_find_axis_info()
|
||
+hb_ot_var_get_named_instance_count()
|
||
+hb_ot_var_named_instance_get_subfamily_name_id()
|
||
+hb_ot_var_named_instance_get_postscript_name_id()
|
||
+hb_ot_var_named_instance_get_design_coords()
|
||
|
||
Deprecated API:
|
||
+HB_OT_VAR_NO_AXIS_INDEX
|
||
+hb_ot_var_axis_t
|
||
+hb_ot_var_get_axes()
|
||
+hb_ot_var_find_axis()
|
||
|
||
|
||
Overview of changes leading to 2.1.3
|
||
Friday, November 16, 2018
|
||
====================================
|
||
- Fix AAT 'mort' shaping, which was broken in 2.1.2
|
||
|
||
|
||
Overview of changes leading to 2.1.2
|
||
Friday, November 16, 2018
|
||
====================================
|
||
- Various internal changes.
|
||
- AAT shaping improvements:
|
||
o Implement kern table Format 1 state-machine-based kerning.
|
||
o Implement cross-stream kerning (cursive positioning, etc).
|
||
o Ignore emptyish GSUB tables (zero scripts) if morx present.
|
||
o Don't apply GPOS if morx is being applied. Matches Apple.
|
||
|
||
|
||
-Overview of changes leading to 2.1.1
|
||
Monday, November 5, 2018
|
||
====================================
|
||
- AAT improvements:
|
||
o Implement 'mort' table.
|
||
o Implement 'kern' subtables Format 1 and Format 3.
|
||
|
||
|
||
Overview of changes leading to 2.1.0
|
||
Tuesday, October 30, 2018
|
||
====================================
|
||
- AAT shaping improvements:
|
||
o Allow user controlling AAT features, for whole buffer only currently.
|
||
o Several 'morx' fixes.
|
||
o Implement tuple-kerns in 'kerx'; Fixes kerning with Apple default
|
||
San Francisco fonts.
|
||
- Support for color fonts:
|
||
o COLR/CPAL API to fetch color layers.
|
||
o SVG table to fetch SVG documents.
|
||
o CBDT/sbix API to fetch PNG images.
|
||
- New 'name' table API.
|
||
- hb-ot-font now uses 'VORG' table to correctly position CFF glyphs
|
||
in vertical layout.
|
||
- Various fuzzer-found bug fixes.
|
||
|
||
Changed API:
|
||
|
||
A type and a macro added in 2.0.0 were renamed:
|
||
|
||
hb_name_id_t -> hb_ot_name_id_t
|
||
HB_NAME_ID_INVALID -> HB_OT_NAME_ID_INVALID
|
||
|
||
New API:
|
||
|
||
+hb_color_t
|
||
+HB_COLOR
|
||
+hb_color_get_alpha()
|
||
+hb_color_get_red()
|
||
+hb_color_get_green()
|
||
+hb_color_get_blue()
|
||
+hb_ot_color_has_palettes()
|
||
+hb_ot_color_palette_get_count()
|
||
+hb_ot_color_palette_get_name_id()
|
||
+hb_ot_color_palette_color_get_name_id()
|
||
+hb_ot_color_palette_flags_t
|
||
+hb_ot_color_palette_get_flags()
|
||
+hb_ot_color_palette_get_colors()
|
||
+hb_ot_color_has_layers()
|
||
+hb_ot_color_layer_t
|
||
+hb_ot_color_glyph_get_layers()
|
||
+hb_ot_color_has_svg()
|
||
+hb_ot_color_glyph_reference_svg()
|
||
+hb_ot_color_has_png()
|
||
+hb_ot_color_glyph_reference_png()
|
||
|
||
+hb_ot_name_id_t
|
||
+HB_OT_NAME_ID_INVALID
|
||
+HB_OT_NAME_ID_COPYRIGHT
|
||
+HB_OT_NAME_ID_FONT_FAMILY
|
||
+HB_OT_NAME_ID_FONT_SUBFAMILY
|
||
+HB_OT_NAME_ID_UNIQUE_ID
|
||
+HB_OT_NAME_ID_FULL_NAME
|
||
+HB_OT_NAME_ID_VERSION_STRING
|
||
+HB_OT_NAME_ID_POSTSCRIPT_NAME
|
||
+HB_OT_NAME_ID_TRADEMARK
|
||
+HB_OT_NAME_ID_MANUFACTURER
|
||
+HB_OT_NAME_ID_DESIGNER
|
||
+HB_OT_NAME_ID_DESCRIPTION
|
||
+HB_OT_NAME_ID_VENDOR_URL
|
||
+HB_OT_NAME_ID_DESIGNER_URL
|
||
+HB_OT_NAME_ID_LICENSE
|
||
+HB_OT_NAME_ID_LICENSE_URL
|
||
+HB_OT_NAME_ID_TYPOGRAPHIC_FAMILY
|
||
+HB_OT_NAME_ID_TYPOGRAPHIC_SUBFAMILY
|
||
+HB_OT_NAME_ID_MAC_FULL_NAME
|
||
+HB_OT_NAME_ID_SAMPLE_TEXT
|
||
+HB_OT_NAME_ID_CID_FINDFONT_NAME
|
||
+HB_OT_NAME_ID_WWS_FAMILY
|
||
+HB_OT_NAME_ID_WWS_SUBFAMILY
|
||
+HB_OT_NAME_ID_LIGHT_BACKGROUND
|
||
+HB_OT_NAME_ID_DARK_BACKGROUND
|
||
+HB_OT_NAME_ID_VARIATIONS_PS_PREFIX
|
||
+hb_ot_name_entry_t
|
||
+hb_ot_name_list_names()
|
||
+hb_ot_name_get_utf8()
|
||
+hb_ot_name_get_utf16()
|
||
+hb_ot_name_get_utf32()
|
||
|
||
|
||
Overview of changes leading to 2.0.2
|
||
Saturday, October 20, 2018
|
||
====================================
|
||
- Fix two minor memory access issues in AAT tables.
|
||
|
||
|
||
Overview of changes leading to 2.0.1
|
||
Friday, October 19, 2018
|
||
====================================
|
||
- Fix hb-version.h reported release version that went wrong (1.8.0)
|
||
with previous release.
|
||
- Fix extrapolation in 'trak' table.
|
||
- Fix hb-font infinite-recursion issue with some font funcs and
|
||
subclassed fonts.
|
||
- Implement variation-kerning format in kerx table, although without
|
||
variation.
|
||
- Fix return value of hb_map_is_empty().
|
||
|
||
|
||
Overview of changes leading to 2.0.0
|
||
Thursday, October 18, 2018
|
||
====================================
|
||
- Added AAT shaping support (morx/kerx/trak).
|
||
Automatically used if GSUB/GPOS are not available respectively.
|
||
Set HB_OPTIONS=aat env var to have morx/kerx preferred over
|
||
GSUB/GPOS.
|
||
- Apply TrueType kern table internally, instead of relying on
|
||
hb_font_t callbacks.
|
||
- Khmer shaper significantly rewritten to better match Uniscribe.
|
||
- Indic3 tags ('dev3', etc) are passed to USE shaper.
|
||
- .dfont Mac font containers implemented.
|
||
- Script- and language-mapping revamped to better use BCP 47.
|
||
- Misc USE and Indic fixes.
|
||
- Misc everything fixes.
|
||
- Too many things to list. Biggest release since 0.9.1, with
|
||
over 500 commits in just over 5 weeks! Didn't intend it to
|
||
be a big release. Just happened to become.
|
||
- hb-ft now locks underlying FT_Face during use.
|
||
|
||
API changes:
|
||
|
||
- Newly-created hb_font_t's now have our internal "hb-ot-font"
|
||
callbacks set on them, so they should work out of the box
|
||
without any callbacks set. If callbacks are set, everything
|
||
is back to what it was before, the fallback callbacks are
|
||
null. If you to get the internal implementation modified,
|
||
sub_font it.
|
||
|
||
- New hb_font_funcs_set_nominal_glyphs_func() allows speeding
|
||
up character to glyph mapping.
|
||
|
||
New API:
|
||
+HB_FEATURE_GLOBAL_START
|
||
+HB_FEATURE_GLOBAL_END
|
||
+hb_buffer_set_invisible_glyph()
|
||
+hb_buffer_get_invisible_glyph()
|
||
+hb_font_funcs_set_nominal_glyphs_func()
|
||
+hb_ot_layout_table_select_script()
|
||
+hb_ot_layout_script_select_language()
|
||
+hb_ot_layout_feature_get_name_ids()
|
||
+hb_ot_layout_feature_get_characters()
|
||
+hb_name_id_t
|
||
+HB_NAME_ID_INVALID
|
||
+HB_OT_MAX_TAGS_PER_SCRIPT
|
||
+hb_ot_tags_from_script_and_language()
|
||
+hb_ot_tags_to_script_and_language()
|
||
|
||
Deprecated API:
|
||
-hb_font_funcs_set_glyph_func()
|
||
-hb_unicode_eastasian_width_func_t
|
||
-hb_unicode_funcs_set_eastasian_width_func()
|
||
-hb_unicode_eastasian_width()
|
||
-hb_unicode_decompose_compatibility_func_t
|
||
-HB_UNICODE_MAX_DECOMPOSITION_LEN
|
||
-hb_unicode_funcs_set_decompose_compatibility_func()
|
||
-hb_unicode_decompose_compatibility()
|
||
-hb_font_funcs_set_glyph_h_kerning_func()
|
||
-hb_font_funcs_set_glyph_v_kerning_func()
|
||
-hb_font_get_glyph_h_kerning()
|
||
-hb_font_get_glyph_v_kerning()
|
||
-hb_font_get_glyph_kerning_for_direction()
|
||
-hb_ot_layout_table_choose_script()
|
||
-hb_ot_layout_script_find_language()
|
||
-hb_ot_tags_from_script()
|
||
-hb_ot_tag_from_language()
|
||
|
||
|
||
Overview of changes leading to 1.9.0
|
||
Monday, September 10, 2018
|
||
====================================
|
||
- Added 'cmap' API to hb_face_t.
|
||
- Face-builder API.
|
||
- hb-ot-font re-creation should be much leaner now, as the
|
||
font tables it uses are cached on hb_face_t now.
|
||
- Internal source header file name changes:
|
||
hb-*-private.hh is renamed to hb-*.hh.
|
||
|
||
New API:
|
||
+HB_UNICODE_MAX
|
||
+hb_face_collect_unicodes()
|
||
+hb_face_collect_variation_selectors()
|
||
+hb_face_collect_variation_unicodes()
|
||
+hb_face_builder_create()
|
||
+hb_face_builder_add_table()
|
||
|
||
|
||
Overview of changes leading to 1.8.8
|
||
Tuesday, August 14, 2018
|
||
====================================
|
||
- Fix hb-icu crash on architectures where compare_exchange_weak() can
|
||
fail falsely. This bug was introduced in 1.8.4.
|
||
https://bugs.chromium.org/p/chromium/issues/detail?id=873568
|
||
- More internal refactoring of atomic operations and singletons.
|
||
- API changes:
|
||
The following functions do NOT reference their return value before
|
||
returning:
|
||
* hb_unicode_funcs_get_default()
|
||
* hb_glib_get_unicode_funcs()
|
||
* hb_icu_get_unicode_funcs()
|
||
This is consistent with their naming ("get", instead of "reference")
|
||
as well as how they are used in the wild (ie. no one calls destroy()
|
||
on their return value.)
|
||
|
||
|
||
Overview of changes leading to 1.8.7
|
||
Wednesday, August 8, 2018
|
||
====================================
|
||
- Fix assertion failure with GDEF-blacklisted fonts.
|
||
|
||
|
||
Overview of changes leading to 1.8.6
|
||
Tuesday, August 7, 2018
|
||
====================================
|
||
- Internal code shuffling.
|
||
- New API to speed up getting advance widths for implementations
|
||
that have heavy overhead in get_h_advance callback:
|
||
+hb_font_funcs_set_glyph_h_advances_func
|
||
+hb_font_funcs_set_glyph_v_advances_func
|
||
+hb_font_get_glyph_advances_for_direction
|
||
+hb_font_get_glyph_h_advances
|
||
+hb_font_get_glyph_h_advances_func_t
|
||
+hb_font_get_glyph_v_advances
|
||
+hb_font_get_glyph_v_advances_func_t
|
||
|
||
|
||
Overview of changes leading to 1.8.5
|
||
Wednesday, August 1, 2018
|
||
====================================
|
||
- Major Khmer shaper improvements to better match Microsoft.
|
||
- Indic bug fixes.
|
||
- Internal improvements to atomic operations.
|
||
|
||
|
||
Overview of changes leading to 1.8.4
|
||
Tuesday, July 17, 2018
|
||
====================================
|
||
- Fix build on non-C++11.
|
||
- Use C++-style GCC atomics and C++11 atomics.
|
||
|
||
|
||
Overview of changes leading to 1.8.3
|
||
Wednesday, July 11, 2018
|
||
====================================
|
||
- A couple of Indic / USE bug fixes.
|
||
- Disable vectorization, as it was causing unaligned access bus error on
|
||
certain 32bit architectures.
|
||
|
||
|
||
Overview of changes leading to 1.8.2
|
||
Tuesday, July 3, 2018
|
||
====================================
|
||
- Fix infinite loop in Khmer shaper.
|
||
- Improve hb_blob_create_from_file() for streams.
|
||
|
||
|
||
Overview of changes leading to 1.8.1
|
||
Tuesday, June 12, 2018
|
||
====================================
|
||
- Fix hb-version.h file generation; last two releases went out with wrong ones.
|
||
- Add correctness bug in hb_set_t operations, introduced in 1.7.7.
|
||
- Remove HB_SUBSET_BUILTIN build option. Not necessary.
|
||
|
||
|
||
Overview of changes leading to 1.8.0
|
||
Tuesday, June 5, 2018
|
||
====================================
|
||
- Update to Unicode 11.0.0.
|
||
|
||
|
||
Overview of changes leading to 1.7.7
|
||
Tuesday, June 5, 2018
|
||
====================================
|
||
- Lots of internal changes, but not yet exposed externally.
|
||
- All HarfBuzz objects are significantly smaller in size now.
|
||
- Sinhala: Position repha on top of post-consonant, not base.
|
||
This better matches Windows 10 behavior, which was changed
|
||
from previous Windows versions.
|
||
- New build options:
|
||
o New cpp macro HB_NO_ATEXIT
|
||
o New cpp macro HB_SUBSET_BUILTIN
|
||
- Significant libharfbuzz-subset changes. API subject to change.
|
||
- New API in libharfbuzz:
|
||
|
||
+hb_blob_create_from_file()
|
||
+hb_face_count()
|
||
|
||
A hashmap implementation:
|
||
+hb-map.h
|
||
+HB_MAP_VALUE_INVALID
|
||
+hb_map_t
|
||
+hb_map_create()
|
||
+hb_map_get_empty()
|
||
+hb_map_reference()
|
||
+hb_map_destroy()
|
||
+hb_map_set_user_data()
|
||
+hb_map_get_user_data()
|
||
+hb_map_allocation_successful()
|
||
+hb_map_clear()
|
||
+hb_map_is_empty()
|
||
+hb_map_get_population()
|
||
+hb_map_set()
|
||
+hb_map_get()
|
||
+hb_map_del()
|
||
+hb_map_has()
|
||
|
||
|
||
Overview of changes leading to 1.7.6
|
||
Wednesday, March 7, 2018
|
||
====================================
|
||
|
||
- Fix to hb_set_t binary operations. Ouch.
|
||
- New experimental harfbuzz-subset library. All of hb-subset.h
|
||
is experimental right now and API WILL change.
|
||
|
||
- New API:
|
||
hb_blob_copy_writable_or_fail()
|
||
HB_OT_TAG_BASE
|
||
hb_set_previous()
|
||
hb_set_previous_range()
|
||
|
||
|
||
Overview of changes leading to 1.7.5
|
||
Tuesday, January 30, 2018
|
||
====================================
|
||
|
||
- Separate Khmer shaper from Indic.
|
||
- First stab at AAT morx. Not hooked up.
|
||
- Misc bug fixes.
|
||
|
||
|
||
Overview of changes leading to 1.7.4
|
||
Wednesday, December 20, 2017
|
||
====================================
|
||
|
||
- Fix collect_glyphs() regression caused by hb_set_t changes.
|
||
|
||
|
||
Overview of changes leading to 1.7.3
|
||
Monday, December 18, 2017
|
||
====================================
|
||
|
||
- hb_set_t performance tuning and optimizations.
|
||
- Speed up collect_glyphs() and reject garbage data.
|
||
- In hb_coretext_font_create() set font point-size (ptem).
|
||
- Misc fixes.
|
||
|
||
|
||
Overview of changes leading to 1.7.2
|
||
Monday, December 4, 2017
|
||
====================================
|
||
|
||
- Optimize hb_set_add_range().
|
||
- Misc fixes.
|
||
- New API:
|
||
hb_coretext_font_create()
|
||
|
||
|
||
Overview of changes leading to 1.7.1
|
||
Tuesday, November 14, 2017
|
||
====================================
|
||
|
||
- Fix atexit object destruction regression.
|
||
- Fix minor integer-overflow.
|
||
|
||
|
||
Overview of changes leading to 1.7.0
|
||
Monday, November 13, 2017
|
||
====================================
|
||
|
||
- Minor Indic fixes.
|
||
- Implement kerning and glyph names in hb-ot-font.
|
||
- Various DSO optimization re .data and .bss sizes.
|
||
- Make C++11 optional; build fixes.
|
||
- Mark all other backends "unsafe-to-break".
|
||
- Graphite fix.
|
||
|
||
|
||
Overview of changes leading to 1.6.3
|
||
Thursday, October 26th, 2017
|
||
====================================
|
||
|
||
- Fix hb_set_t some more. Should be solid now.
|
||
- Implement get_glyph_name() for hb-ot-font.
|
||
- Misc fixes.
|
||
|
||
|
||
Overview of changes leading to 1.6.2
|
||
Monday, October 23nd, 2017
|
||
====================================
|
||
|
||
- Yesterday's release had a bad crasher; don't use it. That's what
|
||
happens when one works on Sunday...
|
||
https://github.com/harfbuzz/harfbuzz/issues/578
|
||
- Build fixes for FreeBSD and Chrome Android.
|
||
|
||
|
||
Overview of changes leading to 1.6.1
|
||
Sunday, October 22nd, 2017
|
||
====================================
|
||
|
||
- Don't skip over COMBINING GRAPHEME JOINER when ligating, etc.
|
||
To be refined: https://github.com/harfbuzz/harfbuzz/issues/554
|
||
- Faster hb_set_t implementation.
|
||
- Don't use deprecated ICU API.
|
||
- Fix undefined-behavior in Myanmar shaper, introduced in 1.6.0
|
||
- Deprecated API:
|
||
hb_set_invert()
|
||
|
||
|
||
Overview of changes leading to 1.6.0
|
||
Friday, October the 13th, 2017
|
||
====================================
|
||
|
||
- Update to Unicode 10.
|
||
|
||
- Various Indic and Universal Shaping Engine fixes as a result of
|
||
HarfBuzz Hackfest with Jonathan Kew at Web Engines Hackfest at
|
||
the Igalia offices in A Coruña, Spain. Thanks Igalia for having
|
||
us!
|
||
|
||
- Implement Unicode Arabic Mark Ordering Algorithm UTR#53.
|
||
|
||
- Implement optical sizing / tracking in CoreText backend, using
|
||
new API hb_font_set_ptem().
|
||
|
||
- Allow notifying hb_font_t that underlying FT_Face changed sizing,
|
||
using new API hb_ft_font_changed().
|
||
|
||
- More Graphite backend RTL fixes.
|
||
|
||
- Fix caching of variable font shaping plans.
|
||
|
||
- hb-view / hb-shape now accept following new arguments:
|
||
|
||
o --unicodes: takes a list of hex numbers that represent Unicode
|
||
codepoints.
|
||
|
||
New API:
|
||
+hb_face_get_table_tags()
|
||
+hb_font_set_ptem()
|
||
+hb_font_get_ptem()
|
||
+hb_ft_font_changed()
|
||
|
||
|
||
Overview of changes leading to 1.5.1
|
||
Tuesday, September 5, 2017
|
||
====================================
|
||
|
||
- Fix "unsafe-to-break" in fallback shaping and other corner cases.
|
||
All our tests pass with --verify now, meaning unsafe-to-break API
|
||
works as expected.
|
||
- Add --unicodes to hb-view / hb-shape.
|
||
- [indic] Treat Consonant_With_Stacker as consonant. This will need
|
||
further tweaking.
|
||
- hb_buffer_diff() tweaks.
|
||
|
||
|
||
Overview of changes leading to 1.5.0
|
||
Wednesday, August 23, 2017
|
||
====================================
|
||
|
||
- Misc new API, for appending a buffer to another, and for comparing
|
||
contents of two buffers for types of differences.
|
||
|
||
- New "unsafe-to-break" API. Can be used to speed up reshaping
|
||
in line-breaking situations. Essentially, after shaping, it returns
|
||
positions in the input string (some of the cluster boundaries) that
|
||
are "safe to break" in that if the text is segmented at that position
|
||
and two sides reshaped and concatenated, the shaping result is
|
||
exactly the same as shaping the text in one piece.
|
||
|
||
hb-view and hb-shape and hb-shape now take --verify, which verifies
|
||
the above property.
|
||
|
||
Some corner cases of the implementation are still not quite working.
|
||
Those will be fixed in subsequent releases.
|
||
|
||
- New API:
|
||
|
||
hb_buffer_append()
|
||
|
||
hb_glyph_flags_t
|
||
HB_GLYPH_FLAG_UNSAFE_TO_BREAK
|
||
HB_GLYPH_FLAG_DEFINED
|
||
hb_glyph_info_get_glyph_flags()
|
||
|
||
HB_BUFFER_SERIALIZE_FLAG_GLYPH_FLAGS
|
||
|
||
hb_buffer_diff_flags_t
|
||
HB_BUFFER_DIFF_FLAG_EQUAL
|
||
HB_BUFFER_DIFF_FLAG_CONTENT_TYPE_MISMATCH
|
||
HB_BUFFER_DIFF_FLAG_LENGTH_MISMATCH
|
||
HB_BUFFER_DIFF_FLAG_NOTDEF_PRESENT
|
||
HB_BUFFER_DIFF_FLAG_DOTTED_CIRCLE_PRESENT
|
||
HB_BUFFER_DIFF_FLAG_CODEPOINT_MISMATCH
|
||
HB_BUFFER_DIFF_FLAG_CLUSTER_MISMATCH
|
||
HB_BUFFER_DIFF_FLAG_GLYPH_FLAGS_MISMATCH
|
||
HB_BUFFER_DIFF_FLAG_POSITION_MISMATCH
|
||
hb_buffer_diff
|
||
|
||
|
||
Overview of changes leading to 1.4.8
|
||
Tuesday, August 8, 2017
|
||
====================================
|
||
|
||
- Major fix to avar table handling.
|
||
- Rename hb-shape --show-message to --trace.
|
||
- Build fixes.
|
||
|
||
|
||
Overview of changes leading to 1.4.7
|
||
Tuesday, July 18, 2017
|
||
====================================
|
||
|
||
- Multiple Indic, Tibetan, and Cham fixes.
|
||
- CoreText: Allow disabling kerning.
|
||
- Adjust Arabic feature order again.
|
||
- Misc build fixes.
|
||
|
||
|
||
Overview of changes leading to 1.4.6
|
||
Sunday, April 23, 2017
|
||
====================================
|
||
|
||
- Graphite2: Fix RTL positioning issue.
|
||
- Backlist GDEF of more versions of Padauk and Tahoma.
|
||
- New, experimental, cmake alternative build system.
|
||
|
||
|
||
Overview of changes leading to 1.4.5
|
||
Friday, March 10, 2017
|
||
====================================
|
||
|
||
- Revert "Fix Context lookup application when moving back after a glyph..."
|
||
This introduced memory access problems. To be fixed properly soon.
|
||
|
||
|
||
Overview of changes leading to 1.4.4
|
||
Sunday, March 5, 2017
|
||
====================================
|
||
|
||
- Fix Context lookup application when moving back after a glyph deletion.
|
||
- Fix buffer-overrun in Bengali.
|
||
|
||
|
||
Overview of changes leading to 1.4.3
|
||
Saturday, February 25, 2017
|
||
====================================
|
||
|
||
- Route Adlam script to Arabic shaper.
|
||
- Misc fixes.
|
||
- New API:
|
||
hb_font_set_face()
|
||
- Deprecate API:
|
||
hb_graphite2_font_get_gr_font()
|
||
|
||
|
||
Overview of changes leading to 1.4.2
|
||
Monday, January 23, 2017
|
||
====================================
|
||
|
||
- Implement OpenType Font Variation tables avar/fvar/HVAR/VVAR.
|
||
- hb-shape and hb-view now accept --variations.
|
||
- New API:
|
||
|
||
hb_variation_t
|
||
hb_variation_from_string()
|
||
hb_variation_to_string()
|
||
|
||
hb_font_set_variations()
|
||
hb_font_set_var_coords_design()
|
||
hb_font_get_var_coords_normalized()
|
||
|
||
hb-ot-var.h:
|
||
hb_ot_var_axis_t
|
||
hb_ot_var_has_data()
|
||
hb_ot_var_get_axis_count()
|
||
hb_ot_var_get_axes()
|
||
hb_ot_var_find_axis()
|
||
hb_ot_var_normalize_variations()
|
||
hb_ot_var_normalize_coords()
|
||
|
||
- MVAR to be implemented later. Access to named instances to be
|
||
implemented later as well.
|
||
|
||
- Misc fixes.
|
||
|
||
|
||
Overview of changes leading to 1.4.1
|
||
Thursday, January 5, 2017
|
||
====================================
|
||
|
||
- Always build and use UCDN for Unicode data by default.
|
||
Reduces dependence on version of Unicode data in glib,
|
||
specially in the Windows bundles we are shipping, which
|
||
have very old glib.
|
||
|
||
|
||
Overview of changes leading to 1.4.0
|
||
Thursday, January 5, 2017
|
||
====================================
|
||
|
||
- Merged "OpenType GX" branch which adds core of support for
|
||
OpenType 1.8 Font Variations. To that extent, the relevant
|
||
new API is:
|
||
|
||
New API:
|
||
hb_font_set_var_coords_normalized()
|
||
|
||
with supporting API:
|
||
|
||
New API:
|
||
HB_OT_LAYOUT_NO_VARIATIONS_INDEX
|
||
hb_ot_layout_table_find_feature_variations()
|
||
hb_ot_layout_feature_with_variations_get_lookups()
|
||
hb_shape_plan_create2()
|
||
hb_shape_plan_create_cached2()
|
||
|
||
Currently variations in GSUB/GPOS/GDEF are fully supported,
|
||
and no other tables are supported. In particular, fvar/avar
|
||
are NOT supported, hence the hb_font_set_var_coords_normalized()
|
||
taking normalized coordinates. API to take design coordinates
|
||
will be added in the future.
|
||
|
||
HVAR/VVAR/MVAR support will also be added to hb-ot-font in the
|
||
future.
|
||
|
||
- Fix regression in GDEF glyph class processing.
|
||
- Add decompositions for Chakma, Limbu, and Balinese in USE shaper.
|
||
- Misc fixes.
|
||
|
||
|
||
Overview of changes leading to 1.3.4
|
||
Monday, December 5, 2016
|
||
====================================
|
||
|
||
- Fix vertical glyph origin in hb-ot-font.
|
||
- Implement CBDT/CBLC color font glyph extents in hb-ot-font.
|
||
|
||
|
||
Overview of changes leading to 1.3.3
|
||
Wednesday, September 28, 2016
|
||
====================================
|
||
|
||
- Implement parsing of OpenType MATH table.
|
||
New API:
|
||
HB_OT_TAG_MATH
|
||
HB_OT_MATH_SCRIPT
|
||
hb_ot_math_constant_t
|
||
hb_ot_math_kern_t
|
||
hb_ot_math_glyph_variant_t
|
||
hb_ot_math_glyph_part_flags_t
|
||
hb_ot_math_glyph_part_t
|
||
hb_ot_math_has_data
|
||
hb_ot_math_get_constant
|
||
hb_ot_math_get_glyph_italics_correction
|
||
hb_ot_math_get_glyph_top_accent_attachment
|
||
hb_ot_math_get_glyph_kerning
|
||
hb_ot_math_is_glyph_extended_shape
|
||
hb_ot_math_get_glyph_variants
|
||
hb_ot_math_get_min_connector_overlap
|
||
hb_ot_math_get_glyph_assembly
|
||
|
||
|
||
Overview of changes leading to 1.3.2
|
||
Wednesday, September 27, 2016
|
||
====================================
|
||
|
||
- Fix build of hb-coretext on older OS X versions.
|
||
|
||
|
||
Overview of changes leading to 1.3.1
|
||
Wednesday, September 7, 2016
|
||
====================================
|
||
|
||
- Blacklist bad GDEF of more fonts (Padauk).
|
||
- More CoreText backend crash fixes with OS X 10.9.5.
|
||
- Misc fixes.
|
||
|
||
|
||
Overview of changes leading to 1.3.0
|
||
Thursday, July 21, 2016
|
||
====================================
|
||
|
||
- Update to Unicode 9.0.0
|
||
- Move Javanese from Indic shaper to Universal Shaping Engine.
|
||
- Allow MultipleSubst to delete a glyph (matching Windows engine).
|
||
- Update Universal Shaping Engine to latest draft from Microsoft.
|
||
- DirectWrite backend improvements. Note: this backend is for testing ONLY.
|
||
- CoreText backend improvements with unreachable fonts.
|
||
- Implement symbol fonts (cmap 3.0.0) in hb-ft and hb-ot-font.
|
||
- Blacklist bad GDEF of more fonts (Tahoma & others).
|
||
- Misc fixes.
|
||
|
||
|
||
Overview of changes leading to 1.2.7
|
||
Monday, May 2, 2016
|
||
====================================
|
||
|
||
- Blacklist another version of Times New Roman (Bold) Italic from Windows 7.
|
||
- Fix Mongolian Free Variation Selectors shaping with certain fonts.
|
||
- Fix Tibetan shorthand contractions shaping.
|
||
- Improved list of language tag mappings.
|
||
- Unbreak build on Windows CE.
|
||
- Make 'glyf' table loading lazy in hb-ot-font.
|
||
|
||
|
||
Overview of changes leading to 1.2.6
|
||
Friday, April 8, 2016
|
||
====================================
|
||
|
||
- Blacklist GDEF table of another set of Times New Roman (Bold) Italic.
|
||
- DirectWrite backend improvements. Note: DirectWrite backend is
|
||
exclusively for our internal testing and should NOT be used in any
|
||
production system whatsoever.
|
||
|
||
|
||
Overview of changes leading to 1.2.5
|
||
Monday, April 4, 2016
|
||
====================================
|
||
|
||
- Fix GDEF mark-filtering-set, which was broken in 1.2.3.
|
||
|
||
|
||
Overview of changes leading to 1.2.4
|
||
Thursday, March 17, 2016
|
||
====================================
|
||
|
||
- Synthesize GDEF glyph class for any glyph that does not have one in GDEF.
|
||
I really hope we don't discover broken fonts that shape badly with this
|
||
change.
|
||
- Misc build and other minor fixes.
|
||
- API changes:
|
||
- Added HB_NDEBUG. It's fine for production systems to define this to
|
||
disable high-overhead debugging checks. However, I also reduced the
|
||
overhead of those checks, so it's a non-issue right now. You can
|
||
forget it. Just not defining anything at all is fine.
|
||
|
||
|
||
Overview of changes leading to 1.2.3
|
||
Thursday, February 25, 2016
|
||
====================================
|
||
|
||
- Blacklist GDEF table of certain versions of Times New Roman (Bold) Italic,
|
||
due to bug in glyph class of ASCII double-quote character. This should
|
||
address "regression" introduced in 1.2.0 when we switched mark zeroing
|
||
in most shapers from BY_UNICODE_LATE to BY_GDEF_LATE.
|
||
This fourth release in a week should finally stabilize things...
|
||
|
||
- hb-ot-font's get_glyph() implementation saw some optimizations. Though,
|
||
might be really hard to measure in real-world situations.
|
||
|
||
- Also, two rather small API changes:
|
||
|
||
We now disable some time-consuming internal bookkeeping if built with NDEBUG
|
||
defined. This is a first time that we use NDEBUG to disable debug code. If
|
||
there exist production systems that do NOT want to enable NDEBUG, please let
|
||
me know and I'll add HB_NDEBUG.
|
||
|
||
Added get_nominal_glyph() and get_variation_glyph() instead of get_glyph()
|
||
|
||
New API:
|
||
- hb_font_get_nominal_glyph_func_t
|
||
- hb_font_get_variation_glyph_func_t
|
||
- hb_font_funcs_set_nominal_glyph_func()
|
||
- hb_font_funcs_set_variation_glyph_func()
|
||
- hb_font_get_nominal_glyph()
|
||
- hb_font_get_variation_glyph()
|
||
|
||
Deprecated API:
|
||
- hb_font_get_glyph_func_t
|
||
- hb_font_funcs_set_glyph_func()
|
||
|
||
Clients that implement their own font-funcs are encouraged to replace
|
||
their get_glyph() implementation with a get_nominal_glyph() and
|
||
get_variation_glyph() pair. The variation version can assume that
|
||
variation_selector argument is not zero. Old (deprecated) functions
|
||
will continue working indefinitely using internal gymnastics; it is
|
||
just more efficient to use the new functions.
|
||
|
||
|
||
Overview of changes leading to 1.2.2
|
||
Wednesday, February 24, 2016
|
||
====================================
|
||
|
||
- Fix regression with mark positioning with fonts that have
|
||
non-zero mark advances. This was introduced in 1.2.0 while
|
||
trying to make mark and cursive attachments to work together.
|
||
I have partially reverted that, so this version is much more
|
||
like what we had before. All clients who updated to 1.2.0
|
||
should update to this version.
|
||
|
||
|
||
Overview of changes leading to 1.2.1
|
||
Tuesday, February 23, 2016
|
||
====================================
|
||
|
||
- CoreText: Fix bug with wrong scale if font scale was changed later.
|
||
https://github.com/libass/libass/issues/212
|
||
- CoreText: Drastically speed up font initialization.
|
||
- CoreText: Fix tiny leak.
|
||
- Group ZWJ/ZWNJ with previous syllable under cluster-level=0.
|
||
https://github.com/harfbuzz/harfbuzz/issues/217
|
||
- Add test/shaping/README.md about how to add tests to the suite.
|
||
|
||
|
||
Overview of changes leading to 1.2.0
|
||
Friday, February 19, 2016
|
||
====================================
|
||
|
||
- Fix various issues (hangs mostly) in case of memory allocation failure.
|
||
- Change mark zeroing types of most shapers from BY_UNICODE_LATE to
|
||
BY_GDEF_LATE. This seems to be what Uniscribe does.
|
||
- Change mark zeroing of USE shaper from NONE to BY_GDEF_EARLY. That's
|
||
what Windows does.
|
||
- Allow GPOS cursive connection on marks, and fix the interaction with
|
||
mark attachment. This work resulted in some changes to how mark
|
||
attachments work. See:
|
||
https://github.com/harfbuzz/harfbuzz/issues/211
|
||
https://github.com/harfbuzz/harfbuzz/commit/86c68c7a2c971efe8e35b1f1bd99401dc8b688d2
|
||
- Graphite2 shaper: improved negative advance handling (eg. Nastaliq).
|
||
- Add nmake-based build system for Windows.
|
||
- Minor speedup.
|
||
- Misc. improvements.
|
||
|
||
|
||
Overview of changes leading to 1.1.3
|
||
Monday, January 11, 2016
|
||
====================================
|
||
|
||
- Ported Indic shaper to Unicode 8.0 data.
|
||
- Universal Shaping Engine fixes.
|
||
- Speed up CoreText shaper when font fallback happens in CoreText.
|
||
- Documentation improvements, thanks to Khaled Hosny.
|
||
- Very rough directwrite shaper for testing, thanks to Ebrahim Byagowi.
|
||
- Misc bug fixes.
|
||
- New API:
|
||
|
||
* Font extents:
|
||
hb_font_extents_t
|
||
hb_font_get_font_extents_func_t
|
||
hb_font_get_font_h_extents_func_t
|
||
hb_font_get_font_v_extents_func_t
|
||
hb_font_funcs_set_font_h_extents_func
|
||
hb_font_funcs_set_font_v_extents_func
|
||
hb_font_get_h_extents
|
||
hb_font_get_v_extents
|
||
hb_font_get_extents_for_direction
|
||
|
||
* Buffer message (aka debug):
|
||
hb_buffer_message_func_t
|
||
hb_buffer_set_message_func()
|
||
Actual message protocol to be fleshed out later.
|
||
|
||
|
||
Overview of changes leading to 1.1.2
|
||
Wednesday, November 26, 2015
|
||
====================================
|
||
|
||
- Fix badly-broken fallback shaper that affected terminology.
|
||
https://github.com/harfbuzz/harfbuzz/issues/187
|
||
- Fix y_scaling in Graphite shaper.
|
||
- API changes:
|
||
* An unset glyph_h_origin() function in font-funcs now (sensibly)
|
||
implies horizontal origin at 0,0. Ie, the nil callback returns
|
||
true instead of false. As such, implementations that have a
|
||
glyph_h_origin() that simply returns true, can remove that function
|
||
with HarfBuzz >= 1.1.2. This results in a tiny speedup.
|
||
|
||
|
||
Overview of changes leading to 1.1.1
|
||
Wednesday, November 24, 2015
|
||
====================================
|
||
|
||
- Build fixes, specially for hb-coretext.
|
||
|
||
|
||
Overview of changes leading to 1.1.0
|
||
Wednesday, November 18, 2015
|
||
====================================
|
||
|
||
- Implement 'stch' stretch feature for Syriac Abbreviation Mark.
|
||
https://github.com/harfbuzz/harfbuzz/issues/141
|
||
- Disable use of decompose_compatibility() callback.
|
||
- Implement "shaping" of various Unicode space characters, even
|
||
if the font does not support them.
|
||
https://github.com/harfbuzz/harfbuzz/issues/153
|
||
- If font does not support U+2011 NO-BREAK HYPHEN, fallback to
|
||
U+2010 HYPHEN.
|
||
- Changes resulting from libFuzzer continuous fuzzing:
|
||
* Reject font tables that need more than 8 edits,
|
||
* Bound buffer growth during shaping to 32x,
|
||
* Fix assertions and other issues at OOM / buffer max-growth.
|
||
- Misc fixes and optimizations.
|
||
- API changes:
|
||
* All fonts created with hb_font_create() now inherit from
|
||
(ie. have parent) hb_font_get_empty().
|
||
|
||
|
||
Overview of changes leading to 1.0.6
|
||
Thursday, October 15, 2015
|
||
====================================
|
||
|
||
- Reduce max nesting level in OT lookups from 8 to 6.
|
||
Should not affect any real font as far as I know.
|
||
- Fix memory access issue in ot-font.
|
||
- Revert default load-flags of fonts created using hb_ft_font_create()
|
||
back to FT_LOAD_DEFAULT|FT_LOAD_NO_HINTING. This was changed in
|
||
last release (1.0.5), but caused major issues, so revert.
|
||
https://github.com/harfbuzz/harfbuzz/issues/143
|
||
|
||
|
||
Overview of changes leading to 1.0.5
|
||
Tuesday, October 13, 2015
|
||
====================================
|
||
|
||
- Fix multiple memory access bugs discovered using libFuzzer.
|
||
https://github.com/harfbuzz/harfbuzz/issues/139
|
||
Everyone should upgrade to this version as soon as possible.
|
||
We now have continuous fuzzing set up, to avoid issues like
|
||
these creeping in again.
|
||
- Misc fixes.
|
||
|
||
- New API:
|
||
* hb_font_set_parent().
|
||
* hb_ft_font_[sg]et_load_flags()
|
||
The default flags for fonts created using hb_ft_font_create()
|
||
has changed to default to FT_LOAD_DEFAULT now. Previously it
|
||
was defaulting to FT_LOAD_DFEAULT|FT_LOAD_NO_HINTING.
|
||
|
||
- API changes:
|
||
* Fonts now default to units-per-EM as their scale, instead of 0.
|
||
* hb_font_create_sub_font() does NOT make parent font immutable
|
||
anymore. hb_font_make_immutable() does.
|
||
|
||
|
||
Overview of changes leading to 1.0.4
|
||
Wednesday, September 30, 2015
|
||
====================================
|
||
|
||
- Fix minor out-of-bounds read error.
|
||
|
||
|
||
Overview of changes leading to 1.0.3
|
||
Tuesday, September 1, 2015
|
||
====================================
|
||
|
||
- Start of user documentation, from Simon Cozens!
|
||
- Implement glyph_extents() for TrueType fonts in hb-ot-font.
|
||
- Improve GPOS cursive attachments with conflicting lookups.
|
||
- More fixes for cluster-level = 1.
|
||
- Uniscribe positioning fix.
|
||
|
||
|
||
Overview of changes leading to 1.0.2
|
||
Wednesday, August 19, 2015
|
||
====================================
|
||
|
||
- Fix shaping with cluster-level > 0.
|
||
- Fix Uniscribe backend font-size scaling.
|
||
- Declare dependencies in harfbuzz.pc.
|
||
FreeType is not declared though, to avoid bugs in pkg-config
|
||
0.26 with recursive dependencies.
|
||
- Slightly improved debug infrastructure. More to come later.
|
||
- Misc build fixes.
|
||
|
||
|
||
Overview of changes leading to 1.0.1
|
||
Monday, July 27, 2015
|
||
====================================
|
||
|
||
- Fix out-of-bounds access in USE shaper.
|
||
|
||
|
||
Overview of changes leading to 1.0.0
|
||
Sunday, July 26, 2015
|
||
====================================
|
||
|
||
- Implement Universal Shaping Engine:
|
||
https://www.microsoft.com/typography/OpenTypeDev/USE/intro.htm
|
||
http://blogs.windows.com/bloggingwindows/2015/02/23/windows-shapes-the-worlds-languages/
|
||
- Bump version to 1.0.0. The soname was NOT bumped.
|
||
|
||
|
||
Overview of changes leading to 0.9.42
|
||
Thursday, July 26, 2015
|
||
=====================================
|
||
|
||
- New API to allow for retrieving finer-grained cluster
|
||
mappings if the client desires to handle them. Default
|
||
behavior is unchanged.
|
||
- Fix cluster merging when removing default-ignorables.
|
||
- Update to Unicode 8.0
|
||
- hb-graphite2 fixes.
|
||
- Misc fixes.
|
||
- Removed HB_NO_MERGE_CLUSTERS hack.
|
||
- New API:
|
||
hb_buffer_cluster_level_t enum
|
||
hb_buffer_get_cluster_level()
|
||
hb_buffer_set_cluster_level()
|
||
hb-shape / hb-view --cluster-level
|
||
|
||
|
||
Overview of changes leading to 0.9.41
|
||
Thursday, June 18, 2015
|
||
=====================================
|
||
|
||
- Fix hb-coretext with trailing whitespace in right-to-left.
|
||
- New API: hb_buffer_reverse_range().
|
||
- Allow implementing atomic ops in config.h.
|
||
- Fix hb_language_t in language bindings.
|
||
- Misc fixes.
|
||
|
||
|
||
Overview of changes leading to 0.9.40
|
||
Friday, March 20, 2015
|
||
=====================================
|
||
|
||
- Another hb-coretext crasher fix. Ouch!
|
||
- Happy Norouz!
|
||
|
||
|
||
Overview of changes leading to 0.9.39
|
||
Wednesday, March 4, 2015
|
||
=====================================
|
||
|
||
- Critical hb-coretext fixes.
|
||
- Optimizations and refactoring; no functional change
|
||
expected.
|
||
- Misc build fixes.
|
||
|
||
|
||
Overview of changes leading to 0.9.38
|
||
Friday, January 23, 2015
|
||
=====================================
|
||
|
||
- Fix minor out-of-bounds access in Indic shaper.
|
||
- Change New Tai Lue shaping engine from South-East Asian to default,
|
||
reflecting change in Unicode encoding model.
|
||
- Add hb-shape --font-size. Can take up to two numbers for separate
|
||
x / y size.
|
||
- Fix CoreText and FreeType scale issues with negative scales.
|
||
- Reject blobs larger than 2GB. This might break some icu-le-hb clients
|
||
that need security fixes. See:
|
||
http://www.icu-project.org/trac/ticket/11450
|
||
- Avoid accessing font tables during face destruction, in casce rogue
|
||
clients released face data already.
|
||
- Fix up gobject-introspection a bit. Python bindings kinda working.
|
||
See README.python.
|
||
- Misc fixes.
|
||
- API additions:
|
||
hb_ft_face_create_referenced()
|
||
hb_ft_font_create_referenced()
|
||
|
||
|
||
Overview of changes leading to 0.9.37
|
||
Wednesday, December 17, 2014
|
||
=====================================
|
||
|
||
- Fix out-of-bounds access in Context lookup format 3.
|
||
- Indic: Allow ZWJ/ZWNJ before syllable modifiers.
|
||
|
||
|
||
Overview of changes leading to 0.9.36
|
||
Thursday, November 20, 2014
|
||
=====================================
|
||
|
||
- First time that three months went by without a release since
|
||
0.9.2 was released on August 10, 2012!
|
||
- Fix performance bug in hb_ot_collect_glyphs():
|
||
https://bugzilla.mozilla.org/show_bug.cgi?id=1090869
|
||
- Add basic vertical-text support to hb-ot-font.
|
||
- Misc build fixes.
|
||
|
||
|
||
Overview of changes leading to 0.9.35
|
||
Saturday, August 13, 2014
|
||
=====================================
|
||
|
||
- Fix major shape-plan caching bug when more than one shaper were
|
||
provided to hb_shape_full() (as exercised by XeTeX).
|
||
http://www.mail-archive.com/debian-bugs-dist@lists.debian.org/msg1246370.html
|
||
- Fix Arabic fallback shaping regression. This was broken in 0.9.32.
|
||
- Major hb-coretext fixes. That backend is complete now, including
|
||
respecing buffer direction and language, down to vertical writing.
|
||
- Build fixes for Windows CE. Should build fine now.
|
||
- Misc fixes:
|
||
Use atexit() only if it's safe to call from shared library
|
||
https://bugs.freedesktop.org/show_bug.cgi?id=82246
|
||
Mandaic had errors in its Unicode Joining_Type
|
||
https://bugs.freedesktop.org/show_bug.cgi?id=82306
|
||
- API changes:
|
||
|
||
* hb_buffer_clear_contents() does not reset buffer flags now.
|
||
|
||
After 763e5466c0a03a7c27020e1e2598e488612529a7, one doesn't
|
||
need to set flags for different pieces of text. The flags now
|
||
are something the client sets up once, depending on how it
|
||
actually uses the buffer. As such, don't clear it in
|
||
clear_contents().
|
||
|
||
I don't expect any changes to be needed to any existing client.
|
||
|
||
|
||
Overview of changes leading to 0.9.34
|
||
Saturday, August 2, 2014
|
||
=====================================
|
||
|
||
- hb_feature_from_string() now accepts CSS font-feature-settings format.
|
||
- As a result, hb-shape / hb-view --features also accept CSS-style strings.
|
||
Eg, "'liga' off" is accepted now.
|
||
- Add old-spec Myanmar shaper:
|
||
https://bugs.freedesktop.org/show_bug.cgi?id=81775
|
||
- Don't apply 'calt' in Hangul shaper.
|
||
- Fix mark advance zeroing for Hebrew shaper:
|
||
https://bugs.freedesktop.org/show_bug.cgi?id=76767
|
||
- Implement Windows-1256 custom Arabic shaping. Only built on Windows,
|
||
and requires help from get_glyph(). Used by Firefox.
|
||
https://bugzilla.mozilla.org/show_bug.cgi?id=1045139
|
||
- Disable 'liga' in vertical text.
|
||
- Build fixes.
|
||
- API changes:
|
||
|
||
* Make HB_BUFFER_FLAG_BOT/EOT easier to use.
|
||
|
||
Previously, we expected users to provide BOT/EOT flags when the
|
||
text *segment* was at paragraph boundaries. This meant that for
|
||
clients that provide full paragraph to HarfBuzz (eg. Pango), they
|
||
had code like this:
|
||
|
||
hb_buffer_set_flags (hb_buffer,
|
||
(item_offset == 0 ? HB_BUFFER_FLAG_BOT : 0) |
|
||
(item_offset + item_length == paragraph_length ?
|
||
HB_BUFFER_FLAG_EOT : 0));
|
||
|
||
hb_buffer_add_utf8 (hb_buffer,
|
||
paragraph_text, paragraph_length,
|
||
item_offset, item_length);
|
||
|
||
After this change such clients can simply say:
|
||
|
||
hb_buffer_set_flags (hb_buffer,
|
||
HB_BUFFER_FLAG_BOT | HB_BUFFER_FLAG_EOT);
|
||
|
||
hb_buffer_add_utf8 (hb_buffer,
|
||
paragraph_text, paragraph_length,
|
||
item_offset, item_length);
|
||
|
||
Ie, HarfBuzz itself checks whether the segment is at the beginning/end
|
||
of the paragraph. Clients that only pass item-at-a-time to HarfBuzz
|
||
continue not setting any flags whatsoever.
|
||
|
||
Another way to put it is: if there's pre-context text in the buffer,
|
||
HarfBuzz ignores the BOT flag. If there's post-context, it ignores
|
||
EOT flag.
|
||
|
||
|
||
Overview of changes leading to 0.9.33
|
||
Tuesday, July 22, 2014
|
||
=====================================
|
||
|
||
- Turn off ARabic 'cswh' feature that was accidentally turned on.
|
||
- Add HB_TAG_MAX_SIGNED.
|
||
- Make hb_face_make_immutable() really make face immutable!
|
||
- Windows build fixes.
|
||
|
||
|
||
Overview of changes leading to 0.9.32
|
||
Thursday, July 17, 2014
|
||
=====================================
|
||
|
||
- Apply Arabic shaping features in spec order exactly.
|
||
- Another fix for Mongolian free variation selectors.
|
||
- For non-Arabic scripts in Arabic shaper apply 'rlig' and 'calt'
|
||
together.
|
||
- Minor adjustment to U+FFFD logic.
|
||
- Fix hb-coretext build.
|
||
|
||
|
||
Overview of changes leading to 0.9.31
|
||
Wednesday, July 16, 2014
|
||
=====================================
|
||
|
||
- Only accept valid UTF-8/16/32; we missed many cases before.
|
||
- Better shaping of invalid UTF-8/16/32. Falls back to
|
||
U+FFFD REPLACEMENT CHARACTER now.
|
||
- With all changes in this release, the buffer will contain fully
|
||
valid Unicode after hb_buffer_add_utf8/16/32 no matter how
|
||
broken the input is. This can be overridden though. See below.
|
||
- Fix Mongolian Variation Selectors for fonts without GDEF.
|
||
- Fix minor invalid buffer access.
|
||
- Accept zh-Hant and zh-Hans language tags. hb_ot_tag_to_language()
|
||
now uses these instead of private tags.
|
||
- Build fixes.
|
||
- New API:
|
||
* hb_buffer_add_codepoints(). This does what hb_buffer_add_utf32()
|
||
used to do, ie. no validity check on the input at all. add_utf32
|
||
now replaces invalid Unicode codepoints with the replacement
|
||
character (see below).
|
||
* hb_buffer_set_replacement_codepoint()
|
||
* hb_buffer_get_replacement_codepoint()
|
||
Previously, in hb_buffer_add_utf8 and hb_buffer_add_utf16, when
|
||
we detected broken input, we replaced that with (hb_codepoint_t)-1.
|
||
This has changed to use U+FFFD now, but can be changed using these
|
||
new API.
|
||
|
||
|
||
Overview of changes leading to 0.9.30
|
||
Wednesday, July 9, 2014
|
||
=====================================
|
||
|
||
- Update to Unicode 7.0.0:
|
||
* New scripts Manichaean and Psalter Pahlavi are shaped using
|
||
Arabic shaper.
|
||
* All the other new scripts to through the generic shaper for
|
||
now.
|
||
- Minor Indic improvements.
|
||
- Fix graphite2 backend cluster mapping [crasher!]
|
||
- API changes:
|
||
* New HB_SCRIPT_* values for Unicode 7.0 scripts.
|
||
* New function hb_ot_layout_language_get_required_feature().
|
||
- Build fixes.
|
||
|
||
|
||
Overview of changes leading to 0.9.29
|
||
Thursday, May 29, 2014
|
||
=====================================
|
||
|
||
- Implement cmap in hb-ot-font.h. No variation-selectors yet.
|
||
- Myanmar: Allow MedialYa+Asat.
|
||
- Various Indic fixes:
|
||
* Support most characters in Extended Devanagary and Vedic
|
||
Unicode blocks.
|
||
* Allow digits and a some punctuation as consonant placeholders.
|
||
- Build fixes.
|
||
|
||
|
||
Overview of changes leading to 0.9.28
|
||
Monday, April 28, 2014
|
||
=====================================
|
||
|
||
- Unbreak old-spec Indic shaping. (bug 76705)
|
||
- Fix shaping of U+17DD and U+0FC6.
|
||
- Add HB_NO_MERGE_CLUSTERS build option. NOT to be enabled by default
|
||
for shipping libraries. It's an option for further experimentation
|
||
right now. When we are sure how to do it properly, we will add
|
||
public run-time API for the functionality.
|
||
- Build fixes.
|
||
|
||
|
||
Overview of changes leading to 0.9.27
|
||
Tuesday, March 18, 2014
|
||
=====================================
|
||
|
||
- Don't use "register" storage class specifier
|
||
- Wrap definition of free_langs() with HAVE_ATEXIT
|
||
- Add coretext_aat shaper and hb_coretext_face_create() constructor
|
||
- If HAVE_ICU_BUILTIN is defined, use hb-icu Unicode callbacks
|
||
- Add Myanmar test case from OpenType Myanmar spec
|
||
- Only do fallback Hebrew composition if no GPOS 'mark' available
|
||
- Allow bootstrapping without gtk-doc
|
||
- Use AM_MISSING_PROG for ragel and git
|
||
- Typo in ucdn's Makefile.am
|
||
- Improve MemoryBarrier() implementation
|
||
|
||
|
||
Overview of changes leading to 0.9.26
|
||
Thursday, January 30, 2014
|
||
=====================================
|
||
|
||
- Misc fixes.
|
||
- Fix application of 'rtlm' feature.
|
||
- Automatically apply frac/numr/dnom around U+2044 FRACTION SLASH.
|
||
- New header: hb-ot-shape.h
|
||
- Uniscribe: fix scratch-buffer accounting.
|
||
- Reorder Tai Tham SAKOT to after tone-marks.
|
||
- Add Hangul shaper.
|
||
- New files:
|
||
hb-ot-shape-complex-hangul.cc
|
||
hb-ot-shape-complex-hebrew.cc
|
||
hb-ot-shape-complex-tibetan.cc
|
||
- Disable 'cswh' feature in Arabic shaper.
|
||
- Coretext: better handle surrogate pairs.
|
||
- Add HB_TAG_MAX and _HB_SCRIPT_MAX_VALUE.
|
||
|
||
|
||
Overview of changes leading to 0.9.25
|
||
Wednesday, December 4, 2013
|
||
=====================================
|
||
|
||
- Myanmar shaper improvements.
|
||
- Avoid font fallback in CoreText backend.
|
||
- Additional OpenType language tag mappiongs.
|
||
- More aggressive shape-plan caching.
|
||
- Build with / require automake 1.13.
|
||
- Build with libtool 2.4.2.418 alpha to support ppc64le.
|
||
|
||
|
||
Overview of changes leading to 0.9.24
|
||
Tuesday, November 13, 2013
|
||
=====================================
|
||
|
||
- Misc compiler warning fixes with clang.
|
||
- No functional changes.
|
||
|
||
|
||
Overview of changes leading to 0.9.23
|
||
Monday, October 28, 2013
|
||
=====================================
|
||
|
||
- "Udupi HarfBuzz Hackfest", Paris, October 14..18 2013.
|
||
- Fix (Chain)Context recursion with non-monotone lookup positions.
|
||
- Misc Indic bug fixes.
|
||
- New Javanese / Buginese shaping, similar to Windows 8.1.
|
||
|
||
|
||
Overview of changes leading to 0.9.22
|
||
Thursday, October 3, 2013
|
||
=====================================
|
||
|
||
- Fix use-after-end-of-scope in hb_language_from_string().
|
||
- Fix hiding of default_ignorables if font doesn't have space glyph.
|
||
- Protect against out-of-range lookup indices.
|
||
|
||
- API Changes:
|
||
|
||
* Added hb_ot_layout_table_get_lookup_count()
|
||
|
||
|
||
Overview of changes leading to 0.9.21
|
||
Monday, September 16, 2013
|
||
=====================================
|
||
|
||
- Rename gobject-introspection library name from harfbuzz to HarfBuzz.
|
||
- Remove (long disabled) hb-old and hb-icu-le test shapers.
|
||
- Misc gtk-doc and gobject-introspection annotations.
|
||
- Misc fixes.
|
||
- API changes:
|
||
|
||
* Add HB_SET_VALUE_INVALID
|
||
|
||
Overview of changes leading to 0.9.20
|
||
Thursday, August 29, 2013
|
||
=====================================
|
||
|
||
General:
|
||
- Misc substitute_closure() fixes.
|
||
- Build fixes.
|
||
|
||
Documentation:
|
||
- gtk-doc boilerplate integrated. Docs are built now, but
|
||
contain no contents. By next release hopefully we have
|
||
some content in. Enable using --enable-gtk-doc.
|
||
|
||
GObject and Introspection:
|
||
- Added harfbuzz-gobject library (hb-gobject.h) that has type
|
||
bindings for all HarfBuzz objects and enums. Enable using
|
||
--with-gobject.
|
||
- Added gobject-introspection boilerplate. Nothing useful
|
||
right now. Work in progress. Gets enabled automatically if
|
||
--with-gobject is used. Override with --disable-introspection.
|
||
|
||
OpenType shaper:
|
||
- Apply 'mark' in Myanmar shaper.
|
||
- Don't apply 'dlig' by default.
|
||
|
||
Uniscribe shaper:
|
||
- Support user features.
|
||
- Fix loading of fonts that are also installed on the system.
|
||
- Fix shaping of Arabic Presentation Forms.
|
||
- Fix build with wide chars.
|
||
|
||
CoreText shaper:
|
||
- Support user features.
|
||
|
||
Source changes:
|
||
- hb_face_t code moved to hb-face.h / hb-face.cc.
|
||
- Added hb-deprecated.h.
|
||
|
||
API changes:
|
||
- Added HB_DISABLE_DEPRECATED.
|
||
- Deprecated HB_SCRIPT_CANADIAN_ABORIGINAL; replaced by
|
||
HB_SCRIPT_CANADIAN_SYLLABICS.
|
||
- Deprecated HB_BUFFER_FLAGS_DEFAULT; replaced by
|
||
HB_BUFFER_FLAG_DEFAULT.
|
||
- Deprecated HB_BUFFER_SERIALIZE_FLAGS_DEFAULT; replaced by
|
||
HB_BUFFER_SERIALIZE_FLAG_DEFAULT.
|
||
|
||
|
||
Overview of changes leading to 0.9.19
|
||
Tuesday, July 16, 2013
|
||
=====================================
|
||
|
||
- Build fixes.
|
||
- Better handling of multiple variation selectors in a row.
|
||
- Pass on variation selector to GSUB if not consumed by cmap.
|
||
- Fix undefined memory access.
|
||
- Add Javanese config to Indic shaper.
|
||
- Misc bug fixes.
|
||
|
||
Overview of changes leading to 0.9.18
|
||
Tuesday, May 28, 2013
|
||
=====================================
|
||
|
||
New build system:
|
||
|
||
- All unneeded code is all disabled by default,
|
||
|
||
- Uniscribe and CoreText shapers can be enabled with their --with options,
|
||
|
||
- icu_le and old shapers cannot be enabled for now,
|
||
|
||
- glib, freetype, and cairo will be detected automatically.
|
||
They can be force on/off'ed with their --with options,
|
||
|
||
- icu and graphite2 are default off, can be enabled with their --with
|
||
options,
|
||
|
||
Moreover, ICU support is now build into a separate library:
|
||
libharfbuzz-icu.so, and a new harfbuzz-icu.pc is shipped for it.
|
||
Distros can enable ICU now without every application on earth
|
||
getting linked to via libharfbuzz.so.
|
||
|
||
For distros I recommend that they make sure they are building --with-glib
|
||
--with-freetype --with-cairo, --with-icu, and optionally --with-graphite2;
|
||
And package harfbuzz and harfbuzz-icu separately.
|
||
|
||
|
||
Overview of changes leading to 0.9.17
|
||
Monday, May 20, 2013
|
||
=====================================
|
||
|
||
- Build fixes.
|
||
- Fix bug in hb_set_get_min().
|
||
- Fix regression with Arabic mark positioning / width-zeroing.
|
||
|
||
Overview of changes leading to 0.9.16
|
||
Friday, April 19, 2013
|
||
=====================================
|
||
|
||
- Major speedup in OpenType lookup processing. With the Amiri
|
||
Arabic font, this release is over 3x faster than previous
|
||
release. All scripts / languages should see this speedup.
|
||
|
||
- New --num-iterations option for hb-shape / hb-view; useful for
|
||
profiling.
|
||
|
||
Overview of changes leading to 0.9.15
|
||
Friday, April 05, 2013
|
||
=====================================
|
||
|
||
- Build fixes.
|
||
- Fix crasher in graphite2 shaper.
|
||
- Fix Arabic mark width zeroing regression.
|
||
- Don't compose Hangul jamo into Unicode syllables.
|
||
|
||
|
||
Overview of changes leading to 0.9.14
|
||
Thursday, March 21, 2013
|
||
=====================================
|
||
|
||
- Build fixes.
|
||
- Fix time-consuming sanitize with malicious fonts.
|
||
- Implement hb_buffer_deserialize_glyphs() for both json and text.
|
||
- Do not ignore Hangul filler characters.
|
||
- Indic fixes:
|
||
* Fix Malayalam pre-base reordering interaction with post-forms.
|
||
* Further adjust ZWJ handling. Should fix known regressions from
|
||
0.9.13.
|
||
|
||
|
||
Overview of changes leading to 0.9.13
|
||
Thursday, February 25, 2013
|
||
=====================================
|
||
|
||
- Build fixes.
|
||
- Ngapi HarfBuzz Hackfest in London (February 2013):
|
||
* Fixed all known Indic bugs,
|
||
* New Win8-style Myanmar shaper,
|
||
* New South-East Asian shaper for Tai Tham, Cham, and New Tai Lue,
|
||
* Smartly ignore Default_Ignorable characters (joiners, etc) wheb
|
||
matching GSUB/GPOS lookups,
|
||
* Fix 'Phags-Pa U+A872 shaping,
|
||
* Fix partial disabling of default-on features,
|
||
* Allow disabling of TrueType kerning.
|
||
- Fix possible crasher with broken fonts with overlapping tables.
|
||
- Removed generated files from git again. So, one needs ragel to
|
||
bootstrap from the git tree.
|
||
|
||
API changes:
|
||
- hb_shape() and related APIs now abort if buffer direction is
|
||
HB_DIRECTION_INVALID. Previously, hb_shape() was calling
|
||
hb_buffer_guess_segment_properties() on the buffer before
|
||
shaping. The heuristics in that function are fragile. If the
|
||
user really wants the old behvaior, they can call that function
|
||
right before calling hb_shape() to get the old behavior.
|
||
- hb_blob_create_sub_blob() always creates sub-blob with
|
||
HB_MEMORY_MODE_READONLY. See comments for the reason.
|
||
|
||
|
||
Overview of changes leading to 0.9.12
|
||
Thursday, January 18, 2013
|
||
=====================================
|
||
|
||
- Build fixes for Sun compiler.
|
||
- Minor bug fix.
|
||
|
||
Overview of changes leading to 0.9.11
|
||
Thursday, January 10, 2013
|
||
=====================================
|
||
|
||
- Build fixes.
|
||
- Fix GPOS mark attachment with null Anchor offsets.
|
||
- [Indic] Fix old-spec reordering of viramas if sequence ends in one.
|
||
- Fix multi-threaded shaper data creation crash.
|
||
- Add atomic ops for Solaris.
|
||
|
||
API changes:
|
||
- Rename hb_buffer_clear() to hb_buffer_clear_contents().
|
||
|
||
|
||
Overview of changes leading to 0.9.10
|
||
Thursday, January 3, 2013
|
||
=====================================
|
||
|
||
- [Indic] Fixed rendering of Malayalam dot-reph
|
||
- Updated OT language tags.
|
||
- Updated graphite2 backend.
|
||
- Improved hb_ot_layout_get_size_params() logic.
|
||
- Improve hb-shape/hb-view help output.
|
||
- Fixed hb-set.h implementation to not crash.
|
||
- Fixed various issues with hb_ot_layout_collect_lookups().
|
||
- Various build fixes.
|
||
|
||
New API:
|
||
|
||
hb_graphite2_face_get_gr_face()
|
||
hb_graphite2_font_get_gr_font()
|
||
hb_coretext_face_get_cg_font()
|
||
|
||
Modified API:
|
||
|
||
hb_ot_layout_get_size_params()
|
||
|
||
|
||
Overview of changes leading to 0.9.9
|
||
Wednesday, December 5, 2012
|
||
====================================
|
||
|
||
- Fix build on Windows.
|
||
- Minor improvements.
|
||
|
||
|
||
Overview of changes leading to 0.9.8
|
||
Tuesday, December 4, 2012
|
||
====================================
|
||
|
||
|
||
- Actually implement hb_shape_plan_get_shaper ().
|
||
- Make UCDB data tables const.
|
||
- Lots of internal refactoring in OTLayout tables.
|
||
- Flesh out hb_ot_layout_lookup_collect_glyphs().
|
||
|
||
New API:
|
||
|
||
hb_ot_layout_collect_lookups()
|
||
hb_ot_layout_get_size_params()
|
||
|
||
|
||
Overview of changes leading to 0.9.7
|
||
Sunday, November 21, 2012
|
||
====================================
|
||
|
||
|
||
HarfBuzz "All-You-Can-Eat-Sushi" (aka Vancouver) Hackfest and follow-on fixes.
|
||
|
||
- Fix Arabic contextual joining using pre-context text.
|
||
- Fix Sinhala "split matra" mess.
|
||
- Fix Khmer shaping with broken fonts.
|
||
- Implement Thai "PUA" shaping for old fonts.
|
||
- Do NOT route Kharoshthi script through the Indic shaper.
|
||
- Disable fallback positioning for Indic and Thai shapers.
|
||
- Misc fixes.
|
||
|
||
|
||
hb-shape / hb-view changes:
|
||
|
||
- Add --text-before and --text-after
|
||
- Add --bot / --eot / --preserve-default-ignorables
|
||
- hb-shape --output-format=json
|
||
|
||
|
||
New API:
|
||
|
||
hb_buffer_clear()
|
||
|
||
hb_buffer_flags_t
|
||
|
||
HB_BUFFER_FLAGS_DEFAULT
|
||
HB_BUFFER_FLAG_BOT
|
||
HB_BUFFER_FLAG_EOT
|
||
HB_BUFFER_FLAG_PRESERVE_DEFAULT_IGNORABLES
|
||
|
||
hb_buffer_set_flags()
|
||
hb_buffer_get_flags()
|
||
|
||
HB_BUFFER_SERIALIZE_FLAGS
|
||
hb_buffer_serialize_glyphs()
|
||
hb_buffer_deserialize_glyphs()
|
||
hb_buffer_serialize_list_formats()
|
||
|
||
hb_set_add_range()
|
||
hb_set_del_range()
|
||
hb_set_get_population()
|
||
hb_set_next_range()
|
||
|
||
hb_face_[sg]et_glyph_count()
|
||
|
||
hb_segment_properties_t
|
||
HB_SEGMENT_PROPERTIES_DEFAULT
|
||
hb_segment_properties_equal()
|
||
hb_segment_properties_hash()
|
||
|
||
hb_buffer_set_segment_properties()
|
||
hb_buffer_get_segment_properties()
|
||
|
||
hb_ot_layout_glyph_class_t
|
||
hb_ot_layout_get_glyph_class()
|
||
hb_ot_layout_get_glyphs_in_class()
|
||
|
||
hb_shape_plan_t
|
||
hb_shape_plan_create()
|
||
hb_shape_plan_create_cached()
|
||
hb_shape_plan_get_empty()
|
||
hb_shape_plan_reference()
|
||
hb_shape_plan_destroy()
|
||
hb_shape_plan_set_user_data()
|
||
hb_shape_plan_get_user_data()
|
||
hb_shape_plan_execute()
|
||
hb_shape_plan_get_shaper()
|
||
|
||
hb_ot_shape_plan_collect_lookups()
|
||
|
||
|
||
API changes:
|
||
|
||
- Remove "mask" parameter from hb_buffer_add().
|
||
- Rename hb_ot_layout_would_substitute_lookup() and hb_ot_layout_substitute_closure_lookup().
|
||
- hb-set.h API const correction.
|
||
- Renamed hb_set_min/max() to hb_set_get_min/max().
|
||
- Rename hb_ot_layout_feature_get_lookup_indexes() to hb_ot_layout_feature_get_lookups().
|
||
- Rename hb_buffer_guess_properties() to hb_buffer_guess_segment_properties().
|
||
|
||
|
||
|
||
Overview of changes leading to 0.9.6
|
||
Sunday, November 13, 2012
|
||
====================================
|
||
|
||
- Don't clear pre-context text if no new context is provided.
|
||
- Fix ReverseChainingSubstLookup, which was totally borked.
|
||
- Adjust output format of hb-shape a bit.
|
||
- Include config.h.in in-tree. Makes it easier for alternate build systems.
|
||
- Fix hb_buffer_set_length(buffer, 0) invalid memory allocation.
|
||
- Use ICU LayoutEngine's C API instead of C++. Avoids much headache.
|
||
- Drop glyphs for all of Unicode Default_Ignorable characters.
|
||
- Misc build fixes.
|
||
|
||
Arabic shaper:
|
||
- Enable 'dlig' and 'mset' features in Arabic shaper.
|
||
- Implement 'Phags-pa shaping, improve Mongolian.
|
||
|
||
Indic shaper:
|
||
- Decompose Sinhala split matras the way old HarfBuzz / Pango did.
|
||
- Initial support for Consonant Medials.
|
||
- Start adding new-style Myanmar shaping.
|
||
- Make reph and 'pref' logic introspect the font.
|
||
- Route Meetei-Mayek through the Indic shaper.
|
||
- Don't apply 'liga' in Indic shaper.
|
||
- Improve Malayalam pre-base reordering Ra interaction with Chillus.
|
||
|
||
|
||
|
||
Overview of changes leading to 0.9.5
|
||
Sunday, October 14, 2012
|
||
====================================
|
||
|
||
- Synthetic-GSUB Arabic fallback shaping.
|
||
|
||
- Misc Indic improvements.
|
||
|
||
- Add build system support for pthread.
|
||
|
||
- Imported UCDN for in-tree Unicode callbacks implementation.
|
||
|
||
- Context-aware Arabic joining.
|
||
|
||
- Misc other fixes.
|
||
|
||
- New API:
|
||
|
||
hb_feature_to/from-string()
|
||
hb_buffer_[sg]et_content_type()
|
||
|
||
|
||
|
||
Overview of changes leading to 0.9.4
|
||
Tuesday, Sep 03, 2012
|
||
====================================
|
||
|
||
- Indic improvements with old-spec Malayalam.
|
||
|
||
- Better fallback glyph positioning, specially with Thai / Lao marks.
|
||
|
||
- Implement dotted-circle insertion.
|
||
|
||
- Better Arabic fallback shaping / ligation.
|
||
|
||
- Added ICU LayoutEngine backend for testing. Call it by the 'icu_le' name.
|
||
|
||
- Misc fixes.
|
||
|
||
|
||
|
||
Overview of changes leading to 0.9.3
|
||
Friday, Aug 18, 2012
|
||
====================================
|
||
|
||
- Fixed fallback mark positioning for left-to-right text.
|
||
|
||
- Improve mark positioning for the remaining combining classes.
|
||
|
||
- Unbreak Thai and fallback Arabic shaping.
|
||
|
||
- Port Arabic shaper to shape-plan caching.
|
||
|
||
- Use new ICU normalizer functions.
|
||
|
||
|
||
|
||
Overview of changes leading to 0.9.2
|
||
Friday, Aug 10, 2012
|
||
====================================
|
||
|
||
- Over a thousand commits! This is the first major release of HarfBuzz.
|
||
|
||
- HarfBuzz is feature-complete now! It should be in par, or better, than
|
||
both Pango's shapers and old HarfBuzz / Qt shapers.
|
||
|
||
- New Indic shaper, supporting main Indic scripts, Sinhala, and Khmer.
|
||
|
||
- Improved Arabic shaper, with fallback Arabic shaping, supporting Arabic,
|
||
Sinhala, N'ko, Mongolian, and Mandaic.
|
||
|
||
- New Thai / Lao shaper.
|
||
|
||
- Tibetan / Hangul support in the generic shaper.
|
||
|
||
- Synthetic GDEF support for fonts without a GDEF table.
|
||
|
||
- Fallback mark positioning for fonts without a GPOS table.
|
||
|
||
- Unicode normalization shaping heuristic during glyph mapping.
|
||
|
||
- New experimental Graphite2 backend.
|
||
|
||
- New Uniscribe backend (primarily for testing).
|
||
|
||
- New CoreText backend (primarily for testing).
|
||
|
||
- Major optimization and speedup.
|
||
|
||
- Test suites and testing infrastructure (work in progress).
|
||
|
||
- Greatly improved hb-view cmdline tool.
|
||
|
||
- hb-shape cmdline tool.
|
||
|
||
- Unicode 6.1 support.
|
||
|
||
Summary of API changes:
|
||
|
||
o Changed API:
|
||
|
||
- Users are expected to only include main header files now (ie. hb.h,
|
||
hb-glib.h, hb-ft.h, ...)
|
||
|
||
- All struct tag names had their initial underscore removed.
|
||
Ie. "struct _hb_buffer_t" is "struct hb_buffer_t" now.
|
||
|
||
- All set_user_data() functions now take a "replace" boolean parameter.
|
||
|
||
- hb_buffer_create() takes zero arguments now.
|
||
Use hb_buffer_pre_allocate() to pre-allocate.
|
||
|
||
- hb_buffer_add_utf*() now accept -1 for length parameters,
|
||
meaning "nul-terminated".
|
||
|
||
- hb_direction_t enum values changed.
|
||
|
||
- All *_from_string() APIs now take a length parameter to allow for
|
||
non-nul-terminated strings. A -1 length means "nul-terminated".
|
||
|
||
- Typedef for hb_language_t changed.
|
||
|
||
- hb_get_table_func_t renamed to hb_reference_table_func_t.
|
||
|
||
- hb_ot_layout_table_choose_script()
|
||
|
||
- Various renames in hb-unicode.h.
|
||
|
||
o New API:
|
||
|
||
- hb_buffer_guess_properties()
|
||
Automatically called by hb_shape().
|
||
|
||
- hb_buffer_normalize_glyphs()
|
||
|
||
- hb_tag_from_string()
|
||
|
||
- hb-coretext.h
|
||
|
||
- hb-uniscribe.h
|
||
|
||
- hb_face_reference_blob()
|
||
- hb_face_[sg]et_index()
|
||
- hb_face_set_upem()
|
||
|
||
- hb_font_get_glyph_name_func_t
|
||
hb_font_get_glyph_from_name_func_t
|
||
hb_font_funcs_set_glyph_name_func()
|
||
hb_font_funcs_set_glyph_from_name_func()
|
||
hb_font_get_glyph_name()
|
||
hb_font_get_glyph_from_name()
|
||
hb_font_glyph_to_string()
|
||
hb_font_glyph_from_string()
|
||
|
||
- hb_font_set_funcs_data()
|
||
|
||
- hb_ft_font_set_funcs()
|
||
- hb_ft_font_get_face()
|
||
|
||
- hb-gobject.h (work in progress)
|
||
|
||
- hb_ot_shape_glyphs_closure()
|
||
hb_ot_layout_substitute_closure_lookup()
|
||
|
||
- hb-set.h
|
||
|
||
- hb_shape_full()
|
||
|
||
- hb_unicode_combining_class_t
|
||
|
||
- hb_unicode_compose_func_t
|
||
hb_unicode_decompose_func_t
|
||
hb_unicode_decompose_compatibility_func_t
|
||
hb_unicode_funcs_set_compose_func()
|
||
hb_unicode_funcs_set_decompose_func()
|
||
hb_unicode_funcs_set_decompose_compatibility_func()
|
||
hb_unicode_compose()
|
||
hb_unicode_decompose()
|
||
hb_unicode_decompose_compatibility()
|
||
|
||
o Removed API:
|
||
|
||
- hb_ft_get_font_funcs()
|
||
|
||
- hb_ot_layout_substitute_start()
|
||
hb_ot_layout_substitute_lookup()
|
||
hb_ot_layout_substitute_finish()
|
||
hb_ot_layout_position_start()
|
||
hb_ot_layout_position_lookup()
|
||
hb_ot_layout_position_finish()
|
||
|
||
|
||
|
||
Overview of changes leading to 0.6.0
|
||
Friday, May 27, 2011
|
||
====================================
|
||
|
||
- Vertical text support in GPOS
|
||
- Almost all API entries have unit tests now, under test/
|
||
- All thread-safety issues are fixed
|
||
|
||
Summary of API changes follows.
|
||
|
||
|
||
* Simple Types API:
|
||
|
||
o New API:
|
||
HB_LANGUAGE_INVALID
|
||
hb_language_get_default()
|
||
hb_direction_to_string()
|
||
hb_direction_from_string()
|
||
hb_script_get_horizontal_direction()
|
||
HB_UNTAG()
|
||
|
||
o Renamed API:
|
||
hb_category_t renamed to hb_unicode_general_category_t
|
||
|
||
o Changed API:
|
||
hb_language_t is a typed pointers now
|
||
|
||
o Removed API:
|
||
HB_TAG_STR()
|
||
|
||
|
||
* Use ISO 15924 tags for hb_script_t:
|
||
|
||
o New API:
|
||
hb_script_from_iso15924_tag()
|
||
hb_script_to_iso15924_tag()
|
||
hb_script_from_string()
|
||
|
||
o Changed API:
|
||
HB_SCRIPT_* enum members changed value.
|
||
|
||
|
||
* Buffer API streamlined:
|
||
|
||
o New API:
|
||
hb_buffer_reset()
|
||
hb_buffer_set_length()
|
||
hb_buffer_allocation_successful()
|
||
|
||
o Renamed API:
|
||
hb_buffer_ensure() renamed to hb_buffer_pre_allocate()
|
||
hb_buffer_add_glyph() renamed to hb_buffer_add()
|
||
|
||
o Removed API:
|
||
hb_buffer_clear()
|
||
hb_buffer_clear_positions()
|
||
|
||
o Changed API:
|
||
hb_buffer_get_glyph_infos() takes an out length parameter now
|
||
hb_buffer_get_glyph_positions() takes an out length parameter now
|
||
|
||
|
||
* Blob API streamlined:
|
||
|
||
o New API:
|
||
hb_blob_get_data()
|
||
hb_blob_get_data_writable()
|
||
|
||
o Renamed API:
|
||
hb_blob_create_empty() renamed to hb_blob_get_empty()
|
||
|
||
o Removed API:
|
||
hb_blob_lock()
|
||
hb_blob_unlock()
|
||
hb_blob_is_writable()
|
||
hb_blob_try_writable()
|
||
|
||
o Changed API:
|
||
hb_blob_create() takes user_data before destroy now
|
||
|
||
|
||
* Unicode functions API:
|
||
|
||
o Unicode function vectors can subclass other unicode function vectors now.
|
||
Unimplemented callbacks in the subclass automatically chainup to the parent.
|
||
|
||
o All hb_unicode_funcs_t callbacks take a user_data now. Their setters
|
||
take a user_data and its respective destroy callback.
|
||
|
||
o New API:
|
||
hb_unicode_funcs_get_empty()
|
||
hb_unicode_funcs_get_default()
|
||
hb_unicode_funcs_get_parent()
|
||
|
||
o Changed API:
|
||
hb_unicode_funcs_create() now takes a parent_funcs.
|
||
|
||
o Removed func getter functions:
|
||
hb_unicode_funcs_get_mirroring_func()
|
||
hb_unicode_funcs_get_general_category_func()
|
||
hb_unicode_funcs_get_script_func()
|
||
hb_unicode_funcs_get_combining_class_func()
|
||
hb_unicode_funcs_get_eastasian_width_func()
|
||
|
||
|
||
* Face API:
|
||
|
||
o Renamed API:
|
||
hb_face_get_table() renamed to hb_face_reference_table()
|
||
hb_face_create_for_data() renamed to hb_face_create()
|
||
|
||
o Changed API:
|
||
hb_face_create_for_tables() takes user_data before destroy now
|
||
hb_face_reference_table() returns empty blob instead of NULL
|
||
hb_get_table_func_t accepts the face as first parameter now
|
||
|
||
* Font API:
|
||
|
||
o Fonts can subclass other fonts now. Unimplemented callbacks in the
|
||
subclass automatically chainup to the parent. When chaining up,
|
||
scale is adjusted if the parent font has a different scale.
|
||
|
||
o All hb_font_funcs_t callbacks take a user_data now. Their setters
|
||
take a user_data and its respective destroy callback.
|
||
|
||
o New API:
|
||
hb_font_get_parent()
|
||
hb_font_funcs_get_empty()
|
||
hb_font_create_sub_font()
|
||
|
||
o Removed API:
|
||
hb_font_funcs_copy()
|
||
hb_font_unset_funcs()
|
||
|
||
o Removed func getter functions:
|
||
hb_font_funcs_get_glyph_func()
|
||
hb_font_funcs_get_glyph_advance_func()
|
||
hb_font_funcs_get_glyph_extents_func()
|
||
hb_font_funcs_get_contour_point_func()
|
||
hb_font_funcs_get_kerning_func()
|
||
|
||
o Changed API:
|
||
hb_font_create() takes a face and references it now
|
||
hb_font_set_funcs() takes user_data before destroy now
|
||
hb_font_set_scale() accepts signed integers now
|
||
hb_font_get_contour_point_func_t now takes glyph first, then point_index
|
||
hb_font_get_glyph_func_t returns a success boolean now
|
||
|
||
|
||
* Changed object model:
|
||
|
||
o All object types have a _get_empty() now:
|
||
hb_blob_get_empty()
|
||
hb_buffer_get_empty()
|
||
hb_face_get_empty()
|
||
hb_font_get_empty()
|
||
hb_font_funcs_get_empty()
|
||
hb_unicode_funcs_get_empty()
|
||
|
||
o Added _set_user_data() and _get_user_data() for all object types:
|
||
hb_blob_get_user_data()
|
||
hb_blob_set_user_data()
|
||
hb_buffer_get_user_data()
|
||
hb_buffer_set_user_data()
|
||
hb_face_get_user_data()
|
||
hb_face_set_user_data()
|
||
hb_font_funcs_get_user_data()
|
||
hb_font_funcs_set_user_data()
|
||
hb_font_get_user_data()
|
||
hb_font_set_user_data()
|
||
hb_unicode_funcs_get_user_data()
|
||
hb_unicode_funcs_set_user_data()
|
||
|
||
o Removed the _get_reference_count() from all object types:
|
||
hb_blob_get_reference_count()
|
||
hb_buffer_get_reference_count()
|
||
hb_face_get_reference_count()
|
||
hb_font_funcs_get_reference_count()
|
||
hb_font_get_reference_count()
|
||
hb_unicode_funcs_get_reference_count()
|
||
|
||
o Added _make_immutable() and _is_immutable() for all object types except for buffer:
|
||
hb_blob_make_immutable()
|
||
hb_blob_is_immutable()
|
||
hb_face_make_immutable()
|
||
hb_face_is_immutable()
|
||
|
||
|
||
* Changed API for vertical text support
|
||
|
||
o The following callbacks where removed:
|
||
hb_font_get_glyph_advance_func_t
|
||
hb_font_get_kerning_func_t
|
||
|
||
o The following new callbacks added instead:
|
||
hb_font_get_glyph_h_advance_func_t
|
||
hb_font_get_glyph_v_advance_func_t
|
||
hb_font_get_glyph_h_origin_func_t
|
||
hb_font_get_glyph_v_origin_func_t
|
||
hb_font_get_glyph_h_kerning_func_t
|
||
hb_font_get_glyph_v_kerning_func_t
|
||
|
||
o The following API removed as such:
|
||
hb_font_funcs_set_glyph_advance_func()
|
||
hb_font_funcs_set_kerning_func()
|
||
hb_font_get_glyph_advance()
|
||
hb_font_get_kerning()
|
||
|
||
o New API added instead:
|
||
hb_font_funcs_set_glyph_h_advance_func()
|
||
hb_font_funcs_set_glyph_v_advance_func()
|
||
hb_font_funcs_set_glyph_h_origin_func()
|
||
hb_font_funcs_set_glyph_v_origin_func()
|
||
hb_font_funcs_set_glyph_h_kerning_func()
|
||
hb_font_funcs_set_glyph_v_kerning_func()
|
||
hb_font_get_glyph_h_advance()
|
||
hb_font_get_glyph_v_advance()
|
||
hb_font_get_glyph_h_origin()
|
||
hb_font_get_glyph_v_origin()
|
||
hb_font_get_glyph_h_kerning()
|
||
hb_font_get_glyph_v_kerning()
|
||
|
||
o The following higher-leve API added for convenience:
|
||
hb_font_get_glyph_advance_for_direction()
|
||
hb_font_get_glyph_origin_for_direction()
|
||
hb_font_add_glyph_origin_for_direction()
|
||
hb_font_subtract_glyph_origin_for_direction()
|
||
hb_font_get_glyph_kerning_for_direction()
|
||
hb_font_get_glyph_extents_for_origin()
|
||
hb_font_get_glyph_contour_point_for_origin()
|
||
|
||
|
||
* OpenType Layout API:
|
||
|
||
o New API:
|
||
hb_ot_layout_position_start()
|
||
hb_ot_layout_substitute_start()
|
||
hb_ot_layout_substitute_finish()
|
||
|
||
|
||
* Glue code:
|
||
|
||
o New API:
|
||
hb_glib_script_to_script()
|
||
hb_glib_script_from_script()
|
||
hb_icu_script_to_script()
|
||
hb_icu_script_from_script()
|
||
|
||
|
||
* Version API added:
|
||
|
||
o New API:
|
||
HB_VERSION_MAJOR
|
||
HB_VERSION_MINOR
|
||
HB_VERSION_MICRO
|
||
HB_VERSION_STRING
|
||
HB_VERSION_CHECK()
|
||
hb_version()
|
||
hb_version_string()
|
||
hb_version_check()
|
||
|
||
|