- engine::import: expand files/folders recursively (sorted; hidden entries
and the library folder skipped), skip known paths, probe + hash in
parallel (std:🧵:scope), skip duplicates by content hash (against
the library and within the batch), add in place or copy into
<library>/Originals/YYYY/YYYY-MM-DD/ with unique names; one undoable op.
- library.import {paths, mode: add|copy, album?} returns
{imported, duplicates[{path, existing, reason}], failed, scanned}.
- probe_bytes records the content hash (SipHash-1-3 128) on every photo.
- system clock for import/edit times on native (Session::with_system_clock).
- app: command-line folders are expanded by the engine (re-importing the
same folder is a no-op); example gen_photos writes procedural test JPEGs
(never committed).
- Measured (200 procedural 2000 px JPEGs, M-series): import 2.25 s; reopen:
library load 1.7 ms, control ready 0.12 s, first thumbnail 0.17 s,
visible grid drawn 0.48 s (thumbnails from the disk cache).
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
- new crate lightcraft-preview (L3): 128-bit content hashing (SipHash-1-3),
cost-bounded Lru, DiskCache (JPEG q90 files keyed by content hash +
settings hash + size + RENDER_CACHE_VERSION; temp+rename writes; LRU prune
by mtime to 80% of budget; corrupt files dropped), PreviewCache (memory
LRU over disk), JobPool (per-slot dedupe, priorities, reprioritize/drop,
inline mode for wasm).
- engine: Session::thumb_job buckets thumbnails to 128/256/384/512 and serves
them from the cache without decoding the source; decoded thumbnail
sources now in a 384 MB LRU (was unbounded); library attaches
<library>/thumbs; library.info cache stats; library.clearPreviews.
- ui-egui: Renderer runs on JobPool; thumbnails scrolled out of the
prefetch area are dropped from the queue; on-screen thumbnails get
re-prioritized; ui.inspect reports in-flight renders + thumb textures.
- Demo library (24 photos): grid fully drawn 4.4 s cold -> 0.21 s warm
(24/24 disk hits, no source decoded).
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
- catalog: Store trait (FsStore: temp+fsync+rename+dir fsync; MemStore),
Journal: CRC-checked JSON-lines op log with sequence numbers + atomic
snapshots; torn final record dropped and truncated, stale records after a
snapshot skipped, mid-log damage preserved as catalog.log.damaged-N.
- PushHistory op so each edit logs one history step (not the full history).
- engine: Session::open_library/persist/close_library; every top-level
command is fsynced before returning; presets.json + view.json;
library.info / library.compact commands.
- app: default library ~/Pictures/LightCraft Library (LIGHTCRAFT_LIBRARY or
--library DIR override), --memory for throwaway sessions, snapshot on quit.
- tests: proptest replay(log)==state with random snapshots/reopens, every
truncation of the last record, stale log, mid-log damage, FsStore, engine
restart without close.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Property tests (random bytes behind every magic, mutated/truncated files),
corpus tests (corpus/images, pngsuite, raw routing, system ICC profiles),
ignored 24 MP JPEG benchmark, decode_thumbnail_with(min_embedded_edge),
fast deflate levels for PNG/TIFF, README with formats, licences, gaps.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
ARW2 implemented from Dietz, EI 2016 (128-bit blocks, interleaved 16-pixel
sets, 7-bit scaled deltas, 5-segment tone curve from 0x7010); black/white/
WB/CFA/crop from the raw IFD's documented Sony tags. Verified visually on
A7 III / A7 IV samples; ~500-850 MP/s row-parallel decode.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
IFD#3 lossless JPEG with 0xc640 slice reassembly, SensorInfo borders,
masked-column black levels per CFA position, saturation-plateau white,
as-shot WB from ColorBalance. Verified bit-identical to Adobe's DNG of
the same 5D Mark III frame. sRAW/mRAW reported as unsupported.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Decoders (JPEG via zune-jpeg + jpeg-decoder for DCT scaling/CMYK, PNG,
TIFF, WebP, GIF, BMP, PSD composite, JPEG XL via jxl-oxide) produce linear
Rgb32f in source primaries with SourceSpace; ICC matrix/TRC applied exactly,
LUT/CMYK profiles through moxcms; to_working() to linear Rec.2020 D65.
Encoders: JPEG, PNG 8/16, TIFF 8/16/32f, lossless WebP, AVIF (native).
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Classic + BigTIFF, both byte orders, all field types, SubIFDs and Exif/GPS/
Interop pointer IFDs, strips/tiles layout, maker-note offset-base helpers,
IFD writer; hardened against malformed input (proptests). Placeholder
manifests for lightcraft-meta and lightcraft-raw.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Brandon Thomas