Resolve the docs/parity.md conflict, keep the HEIC rows. `cargo xtask ci` gets
a heif step (clippy + tests for lightcraft-codecs with --features heif), since
the workspace build leaves the feature off. The Cargo.toml comments no longer
say official builds enable it; the web one notes that wasm32 aborts on panic.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
New crate `lightcraft-heif` (a port of PhotoCraft's photocraft-heif): a thin,
panic-guarded wrapper around heic-rs (pure Rust, pinned =0.1.1) - 8/10-bit,
alpha, grid tiles, container irot/imir/clap, ICC/EXIF/XMP. `lightcraft-codecs`
decodes HEIF behind its non-default `heif` feature (HEVC patents are the
distributor's call, the same policy as PhotoCraft); the apps forward it. HEIC
files stay recognised without the feature: opening one is a clear
"isn't included in this build" error. Fuzz-found heic-rs panics arrive as
regression fixtures (inline bytes, no media committed).
Verified end-to-end on real iPhone HEICs (lightcraft-cli render, rotation and
metadata correct). Note for reviewers: measured here, the engine currently
ignores the decoded image's source-space matrix on export for ANY format (a
true Display-P3 PNG round-trips unchanged); the ICC and space are carried for
all codecs, so this inherits - and does not worsen - existing behaviour.
Co-Authored-By: opencode <noreply@opencode.ai>
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>
