cottongin 0d9a1f4f89 perf: Port upstream PR #1055 — byte-level framebuffer writes ...

Replace per-pixel drawPixel calls with byte-level framebuffer writes
for fillRect, axis-aligned drawLine, and fillRectDither. Adds
fillPhysicalHSpanByte/fillPhysicalHSpan helpers that write directly
to physical rows with memset and partial-byte masking.

Also applies coderabbit nitpick: fillPolygon scanline fill now uses
fillPhysicalHSpan for Landscape orientations.

Upstream: https://github.com/crosspoint-reader/crosspoint-reader/pull/1055
Co-authored-by: Cursor <cursoragent@cursor.com>

2026-02-21 01:14:30 -05:00

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