* craft-raw: the file-format layer of camera raw files, with DNG and CRW
A new crate for #587 and #778: bytes in, the sensor data out as a neutral
RawImage (samples, CFA, levels, active area, crop, orientation, colour tags,
opcode lists, profile tables), and back for DNG. One Cargo feature per format:
dng (read and write), jxl (JPEG XL DNG), crw (through craft-crw).
The base is LightCraft's crates/raw at 5ff567a4: dng, dngwrite, tiffraw,
unpack, ljpeg, jxl, semantic, preview, the parsing half of opcodes, profile
and gaintable, the model and probe. Demosaicing and everything after it stay
with the develop pipeline.
Ported from PhotoCraft's and FilmCraft's DNG readers, each with a test: the
default crop's per-tag defaults, an unusable crop falling back to the active
area, non-finite white levels, the white default of a linearized image, the
AsShotWhiteXY range, 8-bit-only lossy JPEG, lossy tiles that must cover their
part of the image, and the CinemaDNG frame tags.
* craft-raw: Hasselblad 3FR and FFF (feature hasselblad)
RawFormat::CfaTiff decodes: the DNG-layout reader plus what these files add.
Uncompressed data or Hasselblad's lossless JPEG (selection value 8), RGGB when
no CFAPattern is stated, an FFF's colour matrix from the 3FR header it embeds,
and the 8-bit RGB preview handed on as a baseline TIFF.
Moved from LightCraft's vendor/hasselblad.rs at 5ff567a4 with its tests.
Ported from PhotoCraft's reader: four BlackLevel values without a
BlackLevelRepeatDim are one per CFA site in a file that is not a DNG.
* craft-raw: Minolta MRW, Epson ERF, Mamiya MEF and Kodak DCS520C
Four formats only LightCraft decodes, one feature each (mrw, erf, mef, kodak),
moved from its vendor modules at 5ff567a4 with their tests; the MRW block
container comes from lightcraft-meta. src/shared.rs holds the level helpers
the maker decoders share.
ERF and MEF state no white balance: the estimate LightCraft made from the
preview is develop-side work, so wb_multipliers is None for them here.
* craft-raw: shared scan budget for tagged previews, tile-sized lossy JPEG budget, bound on Deflate tile padding
Ported from storytold/lightcraft#3695. Candidate preview ranges are deduplicated and charged to one byte
budget and one header-walk budget; a lossy JPEG decoded for a tile may hold no more samples than the tile
rounded up to whole MCUs (and never more than Limits::max_lossy_tile_samples); a Deflate chunk whose nominal
size is mostly padding outside the image is refused before it is inflated.
* craft-raw: lossless JPEG sample bound per referenced byte; previews larger than the file are passed over
Ported from storytold/lightcraft#3910 (the parts whose code is in craft-raw today). check_image refuses a
lossless JPEG image that declares more than 32 samples per referenced byte, counted once per chunk that points
at the bytes so identical tiles stored once still decode. The Hasselblad RGB preview search passes over an
image whose pixel bytes exceed the file and still takes a smaller complete one.
* craft-raw: test for the Deflate padding bound
* craft-raw: Pentax PEF and Samsung SRW
Moved from LightCraft crates/raw (vendor/pef.rs, vendor/srw.rs) at 5ff567a4. The Huffman difference decoder
and bit reader that PEF shares with the Nikon, Panasonic and Sony codings become the huffman module.
---------
Co-authored-by: radialmonster <radial@gmail.com>
A new crate for #587 and #778: bytes in, the sensor data out as a neutral
RawImage (samples, CFA, levels, active area, crop, orientation, colour tags,
opcode lists, profile tables), and back for DNG. One Cargo feature per format:
dng (read and write), jxl (JPEG XL DNG), crw (through craft-crw).
The base is LightCraft's crates/raw at 5ff567a4: dng, dngwrite, tiffraw,
unpack, ljpeg, jxl, semantic, preview, the parsing half of opcodes, profile
and gaintable, the model and probe. Demosaicing and everything after it stay
with the develop pipeline.
Ported from PhotoCraft's and FilmCraft's DNG readers, each with a test: the
default crop's per-tag defaults, an unusable crop falling back to the active
area, non-finite white levels, the white default of a linearized image, the
AsShotWhiteXY range, 8-bit-only lossy JPEG, lossy tiles that must cover their
part of the image, and the CinemaDNG frame tags.
