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photocraft/crates/engine
Khawar Zamman WaniandClaude Opus 5.5 2d894eab2b fix(engine): tile-wise Invert edit; a run of Inverts costs one
Review of #8783:

- The Invert edit no longer builds a canvas-sized buffer: the canvas
  takes the inverse of the selection's untouched value (one shared tile
  for every fully covered tile, as fill_rect stores it), then only the
  tiles the selection holds are inverted. Byte-for-byte equal to the
  dense inversion; a 100k x 100k canvas inverts in well under a second.
- A run of Inverts is applied as one or none (pairs cancel exactly), so
  4096 of them cost at most one pass between other edits.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
2026-10-23 11:42:26 +05:30
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