tree dd0aa10ca401b97d4763c52422056bce03d25f62
parent 1f4645c6fc4c7cc4d551791b6c04f67e71f4952d
author Behdad Esfahbod <behdad@behdad.org> 1688869309 -0600
committer Behdad Esfahbod <behdad@behdad.org> 1688869400 -0600

[subset/hvar/retaingids] Synthesize a DeltaSetIndexMap if needed

Before we were emitting the entire VarStore rows if advMap
was Null. Instead, synthesize an advMap.

20% speed up in subset_glyphs/SourceHanSans-VF.otf/retaingids benchmark.