Add per-subtable set-digests
authorBehdad Esfahbod <behdad@behdad.org>
Wed, 10 Oct 2018 16:07:49 +0000 (12:07 -0400)
committerBehdad Esfahbod <behdad@behdad.org>
Wed, 10 Oct 2018 16:13:25 +0000 (12:13 -0400)
commitb3390990f508def9c375716614b92fc7b0038228
tree35611256d36a079291dd4c1c7973aad1990d410c
parente78549edfb4df617128a5f5ddd12692f1d0af4bf
Add per-subtable set-digests

This speeds up Roboto shaping by ~10%.  I was hoping for more.
Still, good defense against lookups with many subtables.
src/hb-null.hh
src/hb-ot-layout-gsubgpos.hh