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Faster font loading: packed kerning, one-unpack tables, font state for caches (from #47) with follow-up fixes - #51

Merged

dskripchenko merged 12 commits into

mainfrom

perf/font-loading

Oct 27, 2026

Merged

Faster font loading: packed kerning, one-unpack tables, font state for caches (from #47) with follow-up fixes#51
dskripchenko merged 12 commits into
mainfrom
perf/font-loading

Commits on Oct 21, 2026
- perf(ttf): read cmap and hmtx with one unpack per array
  
  serpentblade
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  claude
  committed
  da88b8a
- perf(gpos): keep kerning packed, class subtables as classes
  
  serpentblade
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  claude
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  96978a6
- fix(subset): set checkSumAdjustment for the subset, not the source font
  
  serpentblade
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  claude
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  e34c869
- perf(subset): sum table checksums from one unpack
  
  serpentblade
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  claude
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  cc6b9ef
- feat(font): PdfFont::$compressionLevel for embedded font bodies
  
  serpentblade
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  claude
  committed
  18e5c82
Commits on Oct 22, 2026
- feat(ttf): TtfFile::exportState()/fromState() with a format version
  
  serpentblade
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  claude
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  d440f34
Commits on Oct 27, 2026
- fix(font): refuse a PdfFont::$compressionLevel outside zlib's -1..9
  
  dskripchenko
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  claude
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  aa3979f
- fix(ttf): validate a restored font state in depth, mark it experimental
  
  dskripchenko
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  claude
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  767407a
- fix(kerning): skip PairSets whose adjustments are all zero
  
  dskripchenko
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- docs(kerning): mark KerningTable::pairCount() as diagnostics-only
  
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- docs: font state cache and compression level in USAGE, four languages
  
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  e8ced93
- Merge remote-tracking branch 'origin/main' into fix-47
  dskripchenko
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  7f40069