* Refactor filters as enum
* Include filter byte in filter output
* Add entropy filter
* Add bigrams filter
* Add bigram entropy filter
* Add brute filter
* Replace bit-vec
* Add tests and benches
* Show filters in help
* Use FxHasher in color to palette
* Use windows function for minor improvement
* Switch main compressor to libdeflate
* Use libdeflater in evaluate
* Use libdeflater to inflate
* Use libdeflater crc
* Tidy up
* Fix benches
* Allow libdeflater/freestanding feature
* Fix building without zopfli
This allows to configure or compile away logging in the library from a single place in Rust apps.
For the CLI side, the usage and output remained the same, except it's now colour-coded.
Fixes#217.
* Improve performance consistency
Switch from HashMap / HashSet to IndexMap / IndexSet for consistent iteration order of various options and, as a result, more predictable performance.
* Fix verbose message
* No cloning when restoring original data
* Make reductions return a new uncompressed image
Partially fixes#145
* Async reduction evaluator
* Assert
* Faster bit depth check
* Also try 4-bit depth for small-depth images
* Skip test when using miniz
* Ensure palette is trimmed after depth reduction
Fixes#159
* Fudge factor for reductions to prefer better reductions even if gzip estimation says otherwise
