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General fixes:
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=============
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- Instead of forming clusters immediately, only do it if we are reversing
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the text. We'd need a separate bit to indicate cluster start then.
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- Right now, BTW, for non-native direction runs, we get the cluster wrong...
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Should do min(input-glyphs.cluster)
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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?
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- Adjust default features for vertical text:
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* vrt2 preferred over vert; but if user selects vert, turn vrt2 off?
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* vkrn (enables vpal? vpal anyone???);
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* valt: "This feature is mutually exclusive with all other glyph-height features (e.g. vhal and vpal),
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which should be turned off when it's applied. It deactivates the kern."
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API issues to fix before 1.0:
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============================
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- Figure out how many .so objects, how to link, etc
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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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- hb_shape() currently does a bit more than hb_ot_shape(). Shouldn't.
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- Add glib GBoxedType stuff and introspection
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API to add (maybe after 1.0):
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============================
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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_execute()
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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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- Full matrix instead of scale?
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- Add segmentation API
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- Add hb-fribidi?
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hb-view enhancements:
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====================
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- Add --format
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- Add --width, --height, --auto-size, --align, etc?
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- Port to GOption, --help
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- Add XML and JSON formats
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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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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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