pdfcraft

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KenM76andClaude Opus 5.5 5abf32ed2f fix(render): knockout passes clear a masked image's coverage, and nothing for an empty mesh

Review of #4898 (FredApps):

- An image or nested group of another blend mode than the pass's composited
  its layer at opacity 0, on the assumption that its shape was cleared first.
  `knockout_image` skips images with an `/SMask` and stencil masks, so a
  white Difference square stayed under a blue Normal masked image in the
  Difference pass and turned it yellow. The layer now composites with
  `Compose::DestOut` at full opacity and no soft mask, clearing exactly its
  coverage.
- In another pass (and an erase pass), a shading cleared under its path
  before the mesh-extent check that makes an off-page mesh paint nothing,
  so a Difference `sh` of such a mesh erased the blue under it. The clear
  now makes the same decision (`shading_bbox`, `mesh_area`, shared with the
  paint path).

Tests: `it::knockout_backdrop` gains a masked image, a stencil and an
off-page mesh case; each fails with its half of the fix reverted.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01SqmHYx8FiWM5PcsoiErgp9

2026-10-27 12:03:33 -04:00

cid_fallback_query.rs

M2: a non-embedded CIDFont's fallback request carries its descendant's font descriptor (ISO 32000-2 §9.7.4, §9.8)

2026-10-24 13:31:31 +08:00

inline_image_ei.rs

Build each crate's integration tests as one binary (#4087 )

2026-10-22 11:28:58 -04:00

jbig2_invariants.rs

Build each crate's integration tests as one binary (#4087 )

2026-10-22 11:28:58 -04:00

knockout_backdrop.rs

fix(render): knockout passes clear a masked image's coverage, and nothing for an empty mesh