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Implement optional JPEG2000 codec adapter (#40)
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This commit is contained in:
Chili Palmer
2026-08-09 03:42:18 +00:00
parent 5d1573fc82
commit 16501f2331
24 changed files with 2776 additions and 53 deletions
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README.md
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@@ -141,5 +141,14 @@ Legacy and DX10 BC1 through BC5 decoding is built in. The default `dds-bc67`
feature adds BC6H/BC7 decoding through the safe, pure-Rust `bcdec_rs` crate;
disabling default features removes that optional dependency and makes those
two formats return a typed unsupported-format error.
JPEG 2000 is available through the opt-in `jpeg2000` feature. It provides raw
J2K and JP2 lossless/lossy encoding and decoding, preserves one through five
component order, precision, signedness, and alpha metadata until explicit byte
conversion, and bounds encoded input, output, dimensions, and decoded samples.
The compatibility encoder reproduces CoreJ2K's four-plane RGB/alpha view,
including its alpha-only and opaque-alpha substitutions. See
[`crates/libremetaverse-openjpeg/README.md`](crates/libremetaverse-openjpeg/README.md)
for OpenJPEG prerequisites, licensing, and deployment details. Default builds
do not discover or link OpenJPEG.
The controlled audit aggregates every expected failure by standardized C#
member ID and rejects unrelated fixture, assertion, compile, or symbol errors.