[HarfBuzz] Amiri and OpenType performance

[Behdad Esfahbod]

On a private thread (which I wish was on the public list) with Konstantin we
were measuring performance of harfbuzz-ng vs old and I noticed that shaping
with Amiri roughly involves hundreds of lookups.  Unfortunately OpenType
shaping runtime is at best linear in the number of lookups.  Any chance you
can look into possibly consolidating some of those?

-- 
behdad
http://behdad.org/