KenM76andClaude Opus 5.5 f84290b294 perf(render): undo PNG predictors a byte row at a time (#5430) ...

The vendored hayro-syntax ran PNG predictors through the bit-level
BitChunks/BitWriter machinery TIFF predictors need, although PNG filters are
defined on bytes (ISO 32000-2 §7.4.4.4, PNG specification §9). A 993 x 936
RGB image took about 63 ms to unfilter whatever its row filters; undone on
byte slices it takes about 3 ms (Up) to 16 ms (Paeth) in a release build.

It also fixes a row that ends part-way through a pixel (three 4-bit samples
at an odd width): the bit-level path dropped its last byte, each later row
started a byte early and the picture came out sheared.

TIFF predictor 2 keeps the old path. Vendored hayro-syntax patch 29.

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

2026-10-30 08:23:56 -04:00

..

inspect

Refactor render for strict Clippy checks

2026-10-27 23:12:51 +00:00

raster

perf(render): undo PNG predictors a byte row at a time (#5430)

2026-10-30 08:23:56 -04:00

text

Merge remote-tracking branch 'upstream/main' into fix/cropbox-text-clipping

2026-10-28 16:17:07 +08:00

inspect.rs

refactor(render): split inspect.rs into inspect/

2026-10-26 22:18:50 +00:00

lab_bradford_tests.rs

M2: adapt Lab Bradford white points in LMS (#1417)

2026-10-12 23:59:51 -04:00

lib.rs

fix(comments): show stray and nested replies, leave Replace Text out of the count

2026-10-23 17:30:08 +02:00

pixels.rs

Reject rounded page rasters beyond the pixel budget

2026-10-21 15:53:00 -07:00

raster.rs

refactor(render): split raster.rs into raster/

2026-10-26 22:18:50 +00:00

reading.rs

Reading colours: replace document colours for reading comfort (#897) (#1270)

2026-10-12 02:49:31 -04:00

structure.rs

fix(render): list an annotation reached through a reference chain once

2026-10-22 21:33:20 +00:00

text.rs

refactor(render): split text.rs into text/

2026-10-26 22:18:50 +00:00

transition.rs

M12: the geometry of page transitions (ISO 32000-2 table 164) (#2084)

2026-10-15 02:42:51 -04:00