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Cut per-call shaping cost with per-Font accelerators, plans and metric caches - #295

Merged

albedosehen merged 16 commits into

mainfrom

perf/shaping-cache

Oct 4, 2026

Merged

Cut per-call shaping cost with per-Font accelerators, plans and metric caches#295
albedosehen merged 16 commits into
mainfrom
perf/shaping-cache

Commits on Oct 4, 2026
- Take the last value of a feature the list repeats
  albedosehen
  committed
  62ce510
- Give glyph_points HarfBuzz's vertical phantoms without vmtx
  albedosehen
  committed
  d4bd3d2
- Keep lookup accelerators and resolved language systems per Font
  albedosehen
  committed
  a44e337
- Keep vertical origins and phantom advances across calls
  albedosehen
  committed
  63957d0
- Test that Font caches never change shaping output
  albedosehen
  committed
  64b29aa
- Add Font::with_variations for user-space axis values
  albedosehen
  committed
  5211d28
- Add Face::glyph_outlines to draw a run with the tables read once
  albedosehen
  committed
  c98a486
- Keep each merged stage plan per Font
  albedosehen
  committed
  481aa20
- Compile the syllable machines once
  albedosehen
  committed
  1078bd2
- Skip syllabic stages and dry runs no lookup can start
  albedosehen
  committed
  404295a
- Describe the stage plans in the Font cache docs
  albedosehen
  committed
  d83cfa4
- Check lookups ahead of setup only with the font's digests
  albedosehen
  committed
  8c5a9d7
- Inline the coverage lookups always
  albedosehen
  committed
  b35ac64
- Bound digest building per table as well as per lookup
  albedosehen
  committed
  16c36a8
- Fuzz Font::with_variations and Face::glyph_outlines
  albedosehen
  committed
  a6d0d39
- Merge remote-tracking branch 'origin/main' into perf/shaping-cache
  albedosehen
  committed
  b4f5fce