* Load and save Photoshop Actions (.atn) (#219)
- photocraft-psd: `atn` parser and writer for version-16 action sets, exact round trip,
truncation/garbage safe, fuzz target and `atn_dump` example. Descriptor fix: `indx` and
`Idnt` reference items carry a class before the number (real action files failed to parse).
- photocraft-engine: `atn_cmds` maps 92 Photoshop events to commands and back (filters,
adjustments per channel, image/canvas/crop/trim/rotate/flip/mode, make/set/select/delete/
hide/show/move/duplicate, fill/stroke, selection, clipboard, purge, profiles, play, stop).
Other steps load as `actions.photoshopStep` (descriptor kept, written back by save, fails at
playback by name); tool selections load switched off. Commands `actions.load`,
`actions.save`, `actions.stopMessage`, `actions.photoshopStep`. `Action` gains `dialogs`
and `set`. `layer` params accept a layer name, so loaded steps replay in any document.
- UI: Actions panel menu › Load Actions… / Save Actions…; Photoshop steps labelled.
- CLI: `batch --actions set.atn`. Automation policy covers the new path params.
- Docs: file-format parity (.atn R/W), gaps G11, target-app parity, scorecard AUTO-219-2
partial, development guide.
* Translate the Actions panel's Load/Save strings in every catalog
The eight new panel strings (Load/Save Actions…, the loaded/saved counts, the kept-step label)
were missing from all 19 catalogs; the languages that were complete are back at 100%.
* Show the Actions entries in the default dock's panel menu
The legacy dock renders its own group menu and only knew the Layers and Swatches entries, so
Load Actions… and Save Actions… were missing there.
Saving a 16- or 32-bit PSD built the Lr16/Lr32 layer payload in a temporary buffer and cloned
every global tagged block before copying them into the file. The payload is now written
straight into the output with its length patched afterwards, and the neighbouring blocks are
borrowed. Output is byte-identical: all 735 corpus PSD/PSBs re-save to the same bytes. A 24 MP
layer saves in 66 ms instead of 75 ms at 16-bit and 132 ms instead of 164 ms at 32-bit, and the
temporary 144-288 MB copy is gone.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
* PSD: decode planes up to 8 GiB, so large PSBs keep their pixels (#375)
MAX_DECODED_BYTES capped a single decode at 2 GiB. Real PSBs go past
that in one plane set: the merged image of a 30000x30000 RGB file is
2.7 GB, a 33000x33000 16-bit layer channel 2.2 GB. Opening such a file
gave a document with no layers (flattened files) or layers whose
channels were "treated as empty" (layered files). Saving hit the same
cap on the encode side and silently fell back to uncompressed data.
The cap is now 8 GiB on 64-bit targets and 2 GiB elsewhere, the budget
photocraft-codecs already uses for Limits::max_alloc. It stays a
backstop: the decoders bound their output by their input on their own
(RLE expands at most 64x, Raw needs every byte present). The Raw and
RLE output buffers are reserved with try_reserve_exact, so a machine
without that much memory gets an error instead of an abort.
generated with Claude Code
* PSD import: a channel that can't be decoded leaves its layer empty (#375)
The warning says the channel is "treated as empty", but the importer
filled a missing transparency channel with opaque alpha, so a layer
whose channels all failed became an opaque black rectangle over the
document. A channel that is present but undecodable now leaves the
whole layer empty (transparent), as the warning says.
tests/large_psb.rs: the damaged-channel case (PSD and PSB), and an
opt-in release test that opens a flattened 29000x29000 PSB whose
merged image decodes to 2.52 GB (16 s, 11.6 GB peak here).
generated with Claude Code
* Large-file fixtures: generate and check 4-5 GB PSBs (#375, #216)
photocraft-psd example big_psb writes five PSBs straight from the spec,
independent of this crate's writer and its limits: flattened and
layered, raw (4.4 and 4.8 GB files, data past 4 GiB) and RLE (small
files whose planes decode past 2 GiB, up to a 33000x33000 16-bit
layer). Every sample follows one formula, so photocraft-io example
big_psb_check opens a file through photocraft_io::import and checks
pixels without a reference; with SAVE set it saves as PSB and checks
the re-opened file.
Release build, this machine: all five open with correct pixels and
survive a PSB save and re-open (5-14 s per import). Before the 8 GiB
cap, three of the five opened empty or black.
Scorecard FILE-216-2 missing -> partial: no 2 GB PSD, 150-layer or
20 MP fixture yet, and nothing runs in CI.
generated with Claude Code
* psd: ZIP channels reserve fallibly and read in bounded chunks
A small ZIP channel declaring a huge decoded size could make
zip_decompress try a multi-GiB with_capacity/read_to_end and abort on
allocation failure. Reserve with try_reserve_exact/try_reserve, read
through take(expected) in 1 MiB chunks, and report LimitExceeded
instead. Tests: absurd declared sizes, past MAX_DECODED_BYTES, garbage.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
---------
Co-authored-by: Brandon Thomas <echelon@gmail.com>
Co-authored-by: Claude Opus 5.5 <noreply@anthropic.com>
Fabio Lissi