v0.0.7

Other

• round-4 — IlbmMuxer mode select + masking + ImageMagick cross-decode
• drop stale REGISTRARS / with_all_features intra-doc links
• drop dead linkme dep
• round-3 — Compression::Auto RDO picker + encoder refactor
• auto-register via oxideav_core::register! macro (linkme distributed slice)
• round 2 — PBM, GRAB, SHAM, PCHG, HAM/EHB encode, ANIM op-0/op-5

Added

• ilbm round-4 features:

  • IlbmMuxer::with_mode — new MuxerMode enum
    (IndexedAuto / Ham6 / Ham8 / Ehb / Pbm) lets callers
    request any of the five encoder modes through the streaming
    container API. Previously only indexed planar was reachable;
    HAM/EHB/PBM were encode_ilbm-only. The muxer auto-builds the
    correct CAMG flags + plane count + palette cap (16 / 64 / 32 /
    256) for each mode and rejects illegal combinations (e.g. PBM
    with HasMask plane).
  • IlbmMuxer::with_masking — set Masking::HasMask or
    Masking::HasTransparentColor plus the keyed transparent index
    on muxer-side encodes.
  • Indexed + PBM HasTransparentColor encode path — when
    bmhd.masking == HasTransparentColor and a source pixel's
    alpha is < 0x80, the encoder writes bmhd.transparent_color
    directly instead of nearest-palette-matching the source RGB,
    so the decoder produces alpha-0 for those indices on read.
  • 13 new tests in tests/ilbm_round4.rs: 5 mux-mode round-trips
    (HAM6 grey, HAM8 grey, HAM6 colour gradient, EHB exact, PBM
    lossless uncompressed and ByteRun1), explicit HasMask +
    HasTransparentColor encoder round-trips, PBM RLE-vs-raw
    byte-savings, mode-emits-CAMG sanity, and three optional
    ImageMagick magick convert cross-decode tests (indexed + HAM6
    • PBM, gated by OXIDEAV_IFF_MAGICK_CROSS=1, silent skip when
      the binary or its ilbmtoppm delegate is unavailable). Indexed
      ByteRun1 and PBM cross-decoded pixels are bit-exact against
      magick's output; HAM6 only checks dimensions agree.

• ilbm round-3 features:

  • Compression::Auto — encoder-only variant. encode_ilbm tries
    both uncompressed and ByteRun1 BODY for each image and emits the
    shorter result, writing the resolved mode into BMHD. IlbmMuxer
    now defaults to Auto instead of ByteRun1. Picks ByteRun1 for
    solid-colour / gradient images (typical >50 % savings) and raw for
    fully-random bitplane data.
  • pack_body_resolving internal helper — returns (Vec<u8>, Compression)
    so the BMHD compression byte always matches the actual encoding.
  • All BODY-encoder branches (indexed, ehb, ham, pbm) refactored
    into a planar-row builder + a resolving packer so Auto propagates
    through every encode path.
  • 8 new tests in tests/ilbm_round3.rs: Auto selects RLE for solid
    colour, Auto selects raw for pseudo-random data, HAM6/HAM8/EHB
    self-roundtrip under Auto compression, byte-savings sanity check,
    CAMG emission guard, IlbmMuxer end-to-end with Auto.

• ilbm round-2 features:

  • PBM chunky variant (FORM / PBM ) — DPaint II / Brilliance
    8-bit-per-pixel sibling of ILBM. Read + write under the
    iff_ilbm container with uncompressed and ByteRun1 BODY.
  • GRAB chunk — mouse-pointer hotspot (i16 x, i16 y).
    Round-trip via IlbmImage::grab.
  • SHAM — Sliced HAM, one 16-entry RGB444 palette per
    scanline. The decoder applies the row's palette to HAM6
    op-0b00 (palette lookup); the encoder honours per-row
    palette state when quantising HAM6 BODY.
  • PCHG — Sebastiano Vigna's palette-change list. Small format
    parsed into per-line PchgLine overrides; both small and big
    formats round-trip the original raw bytes for byte-exact
    encoder output. The indexed encoder honours per-row palette
    state when quantising the BODY.
  • HAM6 / HAM8 encode — per-row state-machine encoder picks
    the cheapest of (palette lookup, modify-R, modify-G, modify-B)
    against the running channel state by squared distance.
  • EHB encode — quantise against the 64-entry expanded
    palette, emit 6 bitplanes regardless of input palette length.

• anim module: read-only support for FORM / ANIM (DPaint III /
  Aegis Animator multi-frame container). Implements ANHD op 0
  (literal full BODY) and op 5 (Byte Vertical Delta). Op-0 muxer
  helper encode_anim_op0 available for round-trip testing.

• New container registration "iff_anim" with .anim extension and
  a FORM....ANIM probe; demuxer emits one keyframe packet per
  decoded frame through a rawvideo / Rgba stream.