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Commit Graph
427 Commits
Author SHA1 Message Date
Aurelia Molzer 9f1de91880 Make an explicit 'fax' feature 2025-08-31 01:32:32 +02:00
Aurelia Molzer 4a68feab5a Apply clippy lints 2025-08-31 01:26:05 +02:00
Aurelia Molzer b5afb8cca4 Drop bitvec dependency 2025-08-31 01:25:58 +02:00
Stephen Judkins c8d43262e9 Simplify decoder 
Reuse the allocation of bits for every row though
 2025-08-31 01:25:51 +02:00
Stephen Judkins 80ce77190e Refactor Group4 reader into stream module 2025-08-31 01:25:43 +02:00
Stephen Judkins c75aa98ce2 bit-addressable output (doesn't work yet) 2025-08-31 01:25:42 +02:00
Stephen Judkins c1087f6f08 Reader instance for group 4-decoded images, that buffer one line at a time 2025-08-31 01:24:21 +02:00
Stephen Judkins 9fcc2a3b65 review changes: pass in width/height, unwrap reader bytes 2025-08-30 23:24:30 +02:00
Stephen Judkins 666f871d30 CCITT group 4 (Fax4) decoding support 2025-08-30 23:20:41 +02:00
Bastian Kersting a919b8febf Fix type mismatch for reading Lists of Bytes 
At the moment when writing Byte strings into tiff metadata sections (like
for XMP metadata) and try to read it with this crate, you will find your
characters as a Value::UnsignedBig, holding the char value with padding.

This seems wrong and we should instead return actual Value::Bytes.
 2025-08-29 12:06:03 +00:00
Aurelia Molzer 0eead083f6 Fix missing method on Decoder 2025-08-26 11:19:35 +02:00
Jacob Adam 718f2cb455 Address compilation warnings in the Nightly channel of Rust. 2025-08-14 17:45:21 +01:00
Aurelia Molzer 36a16db659 Merge pull request #285 from image-rs/read-into-buffer 
Read into byte buffer
 2025-07-25 19:16:09 +00:00
A. Molzer d70c31dcbf Add a Bug note about planar configuration 2025-07-25 21:13:41 +02:00
Alden Timme 29402875cb Add inner() method to decoder to provide access to raw reader 2025-07-21 20:47:47 -07:00
A. Molzer 48d52bed9b Return buffer layout as a struct 
Prepares extensibility for the eventual case of supporting multi-planar
image layouts that are to be written into a multi-planar buffer as
indicated by the caller in some way (possibly not via read_*_bytes but a
method taking a wrapper around the output buffer instead). Through the
struct we can later add an indicator that can be used by the caller to
decide between methods of fetching the pixel data as appropriate.
 2025-07-19 17:46:37 +02:00
A. Molzer c370ac4b92 Take row stride input in chunk bytes 2025-07-19 00:12:43 +02:00
A. Molzer 46e51cc67e Make documentation adhere clippy, more natural 2025-07-14 19:56:06 +02:00
A. Molzer 23672b2490 Switch to div_ceil for rounding implementation 2025-07-14 19:25:12 +02:00
A. Molzer ca74c03520 Fix straightforward cast/borrow lints 2025-07-14 19:25:12 +02:00
A. Molzer 29add10ca7 Fix manual non_exhaustive pattern 2025-07-14 18:24:01 +02:00
A. Molzer 59d32a66a7 Add test coverage for to byte decoding 2025-07-14 18:23:30 +02:00
A. Molzer 5a6b2ad8f3 Complementary methods reading into borrowed buffer 2025-07-14 18:23:30 +02:00
A. Molzer c746653269 Add Decoder::read_image_bytes, borrowed output 2025-07-14 18:23:30 +02:00
A. Molzer 525bb2b9b1 Simplify encoder writing of dictionary 2025-07-13 02:22:17 +02:00
A. Molzer 890488b16e Add Entry::field_type 
The directory API offers a direct access to entries. It is useful for
downstream to have the ability of inspecting fields before consuming
them.
 2025-07-13 01:11:59 +02:00
A. Molzer 26b6afc787 Document Directory related symbols 2025-07-12 15:34:46 +02:00
A. Molzer e62cdfbf42 Merge TagReader and exposed IfdReader internals 
Having the value reader itself take care of the bigtiff and limit
semantics is a little cleaner, with the TagReader being responsible
for the interface of grabbing specific types of IFD values.
 2025-07-11 15:09:31 +02:00
A. Molzer f021e3e599 Rename ifd value adapter to read_directory_tags 2025-07-11 14:12:36 +02:00
A. Molzer f5ab3b363b Expose interacting with secondary IFDs 2025-07-11 14:12:36 +02:00
A. Molzer 98cd3dc2d2 Refactor directory reading 
This allows us to recombine the reader and other file data in a Decoder
with any IFD, whether that of an image or an extension IFD as indicated
by an IFD pointer such as Exif and GPS.
 2025-07-11 14:12:34 +02:00
A. Molzer 43d7f66c9e Refactor cycle and IFD tracking 
The previous strategy could not keep track of all cycles such as
reflexive ones at the very start. Additionally, it would fail to be able
to iterate after seeking since it was overly cautious and verified the
next IFD position before allowing the read of a current IFD.

The new implementation is furthermore proof against having multiple
independent chains of IFD which may occur when iterating SubIFDs for
thumbnails. (Note that we do not verify the tree-structure, only a
freedom from cycles).
 2025-07-10 23:52:07 +02:00
Aurelia Molzer df4e42eecc Add a dedicated Directory type (#277) 2025-07-07 19:59:37 -07:00
Vladimir Kuznetsov 816fb85304 Use libtiff compatible weezl configuration (#276) 2025-06-29 10:24:28 -07:00
Jonathan Behrens 7648317643 Stop doing color conversion when decoding JPEG compressed images (#274) 2025-06-22 16:19:36 -07:00
Emma 29b71ff597 add CMYKA (#208) 2025-06-15 16:38:22 -07:00
Jonathan Behrens 83e6d64751 Create feature flags for more compression algorithms (#270) 2025-06-15 15:50:14 -07:00
Jonathan Behrens dc2c67469b Switch to zune-jpeg (#268) 
]
 2025-06-14 21:13:16 -07:00
Jonathan Behrens b5d8ee5f86 Switch to quick_error and cleaner error messages (#269) 2025-06-09 19:10:12 -07:00
Jonathan Behrens f44da4a00d Switch from SmartReader to EndianReader (#233) 2025-06-08 18:45:10 -07:00
Wei Ji ee0dbf373b Read Byte as u8, SignedByte as i8 (#236) 2025-06-08 18:31:51 -07:00
Wei Ji aeab243a96 Read Short as u16, SignedShort as i16 (#235) 2025-06-08 18:03:08 -07:00
Micah Chambers 3bfb43e83e Add FP16 support (#257) 2025-02-04 19:12:01 -08:00
Jonathan Behrens d42e6be507 Fix formatting (#263) 2025-01-30 23:29:29 -08:00
Stefan Schake a19cf37587 Support ZSTD compression method for reading (#256) 2024-12-20 12:50:34 -08:00
Gunnar Schulze ff52aea06e Add support for iterating over all tags (#255) 2024-11-25 19:34:11 -08:00
Jonathan Behrens 96d3a02efe Fix 1bpp image decoding and add a test image (#252) 2024-10-31 20:21:02 -07:00
Jean-Baptiste Skutnik e28ad564d9 Add horizontal predictor support (#240) 2024-09-23 19:45:45 +01:00
Jonathan Behrens 6dc7a266d3 Make decoding internally operate on byte buffers (#230) 2024-07-22 20:13:39 -07:00
Wei Ji 307cd8be97 Add SignedByte and SignedShort enum variants (#234) 2024-07-21 20:37:25 -07:00