HarfBuzz text shaping engine
http://harfbuzz.github.io/
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104 lines
2.2 KiB
104 lines
2.2 KiB
General fixes: |
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- Warn at compile time (and runtime with HB_DEBUG?) if no Unicode funcs |
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found / set. |
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- In hb_shape(), assert if direction is INVALID. |
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- Fix TT 'kern' on/off and GPOS interaction (move kerning before GPOS). |
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- Do proper rounding when scaling from font space? May be a non-issue. |
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- Misc features: |
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* init/medi/fina/isol for non-cursive scripts |
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* vkna,hkna etc for kana, etc |
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- Move non-native direction and normalization handling to the generic non-OT |
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layer, such that uniscribe and other backends can use. |
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- Uniscribe backend needs to enforce one direction only, otherwise cluster |
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values can confuse the user. |
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- GSUB ligation should call merge_clusters(). Also other places. |
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- Convert NBSP into space glyph. |
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- Synthetic GDEF. |
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API issues to fix before 1.0: |
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============================ |
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- Add pkg-config files for glue codes (harfbuzz-glib, etc) |
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- Figure out how many .so objects, how to link, etc |
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- 'const' for getter APIs? (use mutable internally) |
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- blob_from_file? |
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API additions |
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============= |
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- Buffer (de)serialize API ala hb-shape? |
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- Move feature parsing from util into the library |
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- Add hb-cairo glue |
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- Add sanitize API (and a cached version, that saves result on blob user-data) |
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- Add glib GBoxedType stuff and introspection |
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- Add Uniscribe face / font get API |
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- BCP 47 language handling / API (language_matches?) |
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- Add hb_face_get_glyph_count()? |
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- Add hb_font_create_linear()? |
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- Add hb_shape_plan()/hb_shape_planned() |
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- Add query API for aalt-like features? |
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- SFNT api? get_num_faces? get_table_tags? (there's something in stash) |
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- Add segmentation API |
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- Add hb-fribidi glue? |
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hb-view / hb-shape enhancements: |
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=============================== |
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- Add --width, --height, --auto-size, --align, etc? |
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- Add XML and JSON formats to hb-shape |
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- --features="init=medi=isol=fina=0" |
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Tests to write: |
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============== |
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- ot-layout enumeration API (needs font) |
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- Finish test-shape.c, grep for TODO |
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- Finish test-unicode.c, grep for TODO |
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- GObject, FreeType, etc |
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- hb_set_t |
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- hb_cache_t and relatives |
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Optimizations: |
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============= |
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- Avoid allocating blob objects internally for for_data() faces? |
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- Add caching layer to hb-ft? |
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- Cache feature-less shape plans internally on the face.
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