Behdad Esfahbod 0eca44e6e8 [truetype] Use the blend axis count for private VARC axes. ...

Static VARC fonts can have private variation axes without an 'fvar'
table or public MM metadata.  Use the blend's axis count when validating
'avar' and item variation stores, avoiding a null 'mmvar' dereference
when loading HVAR or VVAR for a VARC component.

* src/truetype/ttgxvar.c (ft_var_load_avar,
  tt_var_load_item_variation_store): Use blend->num_axis.

* tests/varc/make-hvvar-fonts.py: Generate HVAR and VVAR fixtures from
  the static VARC/gvar font using only Python's standard library.
* tests/meson.build: Generate the fixtures and pass them to the VARC test.
* tests/varc/main.c (test_font, main): Test generated fixture paths.

Tests: all five Meson regression tests pass.

Fixes issue #1474.

Assisted-by: OpenAI Codex

2026-10-19 06:12:33 +02:00

..

main.c

[truetype] Use the blend axis count for private VARC axes.

2026-10-19 06:12:33 +02:00

make-hvvar-fonts.py

[truetype] Use the blend axis count for private VARC axes.

2026-10-19 06:12:33 +02:00