cottongin 3a0641889f perf: Port upstream font drawing performance optimization (PR #978) ...

Cherry-pick upstream commit 07d715e which refactors renderChar and
drawTextRotated90CW into a template-based renderCharImpl, hoisting
the is2Bit branch outside inner pixel loops for 15-23% speedup.

Additionally extends the template with Rotated90CCW to fix two bugs
in the mod's drawTextRotated90CCW: operator precedence in bmpVal
calculation and missing compressed font support via getGlyphBitmap.

Co-authored-by: Cursor <cursoragent@cursor.com>

2026-02-19 22:20:44 -05:00

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