rustybuzz

Changed

• Bump ttf-parser.

Fixed

• Variations handling for fonts with avar table that has multiple axes. Thanks to @maxmelander.

• Sync with HarfBuzz 10.0.1. Thanks to @LaurenzV.

Fixed

• RTL text handling. Thanks to @LaurenzV.

Added

• WASM shapers support. Thanks to @asibahi.
• Some performance improvements. Thanks to @LaurenzV.

Fixed

• Multiple bugs. Thanks to @LaurenzV.
• kerx table parsing in some Apple fonts.
• Allow hb_buffer_t::serial to overflow/wrap-around instead of panicking.

Changed

• Bump ttf-parser.

• Sync with HarfBuzz 9.0.0. Thanks to @LaurenzV.

Changed

• Bump ttf-parser.
• Use core_maths instead of libm. Should simplify the build process.

Removed

• no-std-float build flag. Should be handled automatically now.

• Sync with HarfBuzz 8.5.0 🎉<br> rustybuzz is finally in-sync with harfbuzz. Thanks to @LaurenzV.

Changed

• When building without the std feature one must enable no-std-float feature instead.

Fixed

• gvar phantom points handling which fixes some variable fonts shaping.

Fixed

• no_std build. Thanks to @jackpot51

• Sync with HarfBuzz 4.3.0. Thanks to @Pi-Cla and @LaurenzV.

Changed

• Bump ttf-parser.
• Bump Rust Edition to 2021.

• Sync with HarfBuzz 4.1.0. Thanks to @LaurenzV.

Added

• Derive Hash for Feature. Thanks to @laurmaedje.
• ShapePlan is Send and Sync now. Thanks to @laurmaedje.

Added

• Sync with HarfBuzz 2.9.1. Thanks to @bluebear94.
• UnicodeBuffer::set_pre_context and UnicodeBuffer::set_post_context. Thanks to @bluebear94.
• shape_with_plan function to allow cached ShapePlans. Thanks to @vorporeal.

Added

• Sync with HarfBuzz 2.9.0. Thanks to @bluebear94.

Added

• Sync with HarfBuzz 2.8.0.

Added

• Sync with HarfBuzz 2.7.4. Thanks to @bluebear94.
• State machines are autogenerated via ragel instead of manually translating them from C now. Thanks to @notgull.

Changed

• Use unicode-properties crate instead of unicode-general-category. Should significantly reduce compilation times. Thanks to @eddyb.

Fixed

• Panic in the Universal shaper. Thanks to @notgull.

Changed

• Bump ttf-parser.

Added

• UnicodeBuffer::add thanks to @bluebear94.

Changed

• Bump ttf-parser.
• Face::from_face no longer returns Option.

Added

• ttf-parser is reexported now.

Changed

• Bump ttf-parser.

Changed

• Revert 0.5.2 because it was a breaking change.

Added

• ttf-parser is reexported now.

Changed

• Bump ttf-parser.

Added

• Implement PartialOrd, Ord and Hash for Script.

Fixed

• no_std support thanks to @CryZe.

Changed

• GSUB, GPOS, ankr, feat, kern, kerx, morx and trak tables parsing was moved to ttf-parser.
• rustybuzz no longer do any TrueType parsing. Everything is handled by ttf-parser.

Fixed

• Multiple issues in AAT Lookup Table parsing.

Added

• Face::from_face, so you can create rustybuzz::Face directly from ttf_parser::Face. Thanks to @lain-dono
• no_std support thanks to @CryZe.
• GlyphInfo::unsafe_to_break thanks to @glowcoil.

Changed

• Sync with harfbuzz 2.7.1
• Rename GlyphInfo.codepoint into GlyphInfo.glyph_id to remove confusion.

Ported

• Everything! 🎉
• Tables: GSUB, GPOS, GDEF, ankr, feat, kern, kerx, morx, trak.
• Main shaping logic.
• hb_shape_plan_t and hb_ot_shape_plan_t
• hb_ot_map_t
• hb_ot_complex_shaper_t
• OpenType layout (GSUB, GPOS).
• AAT layout.
• Normalization.
• Fallback shaper.
• Kerning.

Changed

• Rename Font to Face.

Most of the changes in this release were made by laurmaedje.

Ported

• All complex shapers.
• Tables: CBDT, CFF, CFF2, HVAR, MVAR, OS/2, SVG, VORG, VVAR, avar, cmap, fvar, glyf, gvar, hhea, hmtx, post, sbix, vhea, vmtx.
• hb_buffer_t
• hb_script_t
• hb_feature_t
• hb_variation_t
• hb_language_t
• hb_font_t
• hb-ot-metrics
• Unicode functions and tables.
• Buffer serialization.

Changed

• Update to HarfBuzz 2.7.0
• Rename Font::from_data into Font::from_slice.
• Font is parsed via ttf-parser first. And if the parsing fails, the Font will not be created. harfbuzz allows malformed fonts.

Removed

• hb_font_funcs_t. Only the embedded TrueType implementation is used.
• hb_unicode_funcs_t. Only the embedded Unicode implementation is used.
• Font::set_scale/hb_font_set_scale/--font-size. Shaping is always in font units now. This simplifies the code quite a lot.
• Shaping plan caching.
• Fallback shaper.
• Unused hdmx table.

Fixed

• Compilation with an old XCode.

At this point, this is just a simple Rust bindings to a stripped down harfbuzz.

Added

• An absolute minimum Rust API.
• harfbuzz's shaping test suite had been ported to Rust.

Changed

• harfbuzz source code was reformatted using clang-format.

Removed

• Subsetting. This is probably a bit controversial, but I want to port only the shaper for now. This is also removes around 7000 LOC.
• Arabic fallback shaper. Since it requires subsetting.
• Unused TrueType tables: BASE, COLR, CPAL, JSTF, MATH, STAT, bsln, fdsc, gasp, just, lcar, ltag, meta, name, opbd.
• All external dependencies: coretext, directwrite, freetype, gdi, glib, gobject, graphite, icu, uniscribe. Embedded harfbuzz relies only on internal TrueType implementation.
• Most of the non-shaping harfbuzz API.