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chafa 1.2.1-1
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Chafa releases
==============

1.2.1 (2019-08-15)
------------------

This minor release fixes a few bugs and improves terminal detection.

* Detect kitty and mlterm virtual terminals and apply optimal defaults
  accordingly.

* Make Automake build more strict and fix a few compatibility nits.

* Bug fixes:
  github#30  Failed to build on hurd-i386 (found by Mo Zhou).
  [unfiled]  Crash on certain broken GIFs.

1.2.0 (2019-08-04)
------------------

This is a feature and performance release.

* Added --dither, --dither-grain and --dither-intensity options. These
  allow for sub-cell dithering in quantized modes (none, 2, 16, 240
  and 256). Especially beneficial when used with -p off.

* Added API for ordered and diffusion-based dithering in quantization.

* Added API support for multiple 8bpc pixel modes: RGB, BGR, RGBA, BGRA,
  ARGB, ABGR with either premultiplied or unassociated alpha channels.

* Smooth scaling is now done internally, meaning libchafa consumers no
  longer need to prescale images.

* Implemented a machine learning tool that can generate custom fonts
  for efficient image reproduction from a provided dataset. This is
  left uninstalled since it's still experimental (Mo Zhou).

* Throughput improvements:
  - GIF animations now start playing instantly.
  - GIF CPU overhead reduced by 75%, peak memory use down 95%-99% (!).
  - XWD common case CPU overhead down 60-70%, peak memory down 70%.
  - Additional halving of CPU overhead in 240- and 256-color modes.
  - Streamlined pixel pipeline for better parallelization.

* Installation instructions:
  - New: Guix (Guy Fleury Iteriteka).
  - New: openSUSE (Michael Vetter).

* Bug fixes:
  [unfiled]  Certain SVGs had transparency replaced with a white
             background (nemo).
  [unfiled]  -lm dependency belongs in libchafa, not frontend.

1.0.1 (2018-12-18)
------------------

* Bug fixes:
  [unfiled]  Bad geometry calculation when specifying one dimension
             and omitting the other.

1.0.0 (2018-12-16)
------------------

This release adds features, greatly improves performance and fixes
several bugs. Programs written for the command line and libchafa
interfaces in this release will be supported by future versions in
the 1.y.z series without the need for modification or recompilation.

* Added ability to specify "fill" symbols to use as halftone for better
  color approximation. This can be used to augment the regular symbol
  selection or to replace it (with --symbols none) for a different,
  purely intensity-based effect.

* Improved preprocessing in 2-color and 16-color modes. This is optional
  (default: on) and consists of a contrast boost and, for the 16-color
  mode, an additional saturation boost. The new implementation lives in
  libchafa and does not rely on ImageMagick. It is multithreaded, and due
  to its specialized nature, much faster.

* Added --watch option to continuously monitor a file.

* Added more symbols:
  - Most of the ASCII range.
  - Braille range (github#2, thanks to Adam Borowski).
  - Miscellaneous math and scanline symbols.
  - More geometric symbols (black circle, triangles) (Mo Zhou).

* Throughput improvements:
  - Fast symbol candidate set reduction by median cut.
  - Parallel processing with threads.
  - Prescaling using bilinear interpolation instead of lanczos.

* Installation instructions:
  - New: Arch (github#12, Felix Yan).
  - New: Debian testing/unstable (github#9, Mo Zhou).
  - New: Fedora (github#14, Ricardo Arguello).
  - Mention missing dependency for Debian (github#13, @medusacle).

* Bug fixes:
  github#1   -c none produces pointless \e[0m after every line (found by
             Adam Borowski).
  github#3   Compile error (found by Lajos Papp).
  github#4   AM_PROG_LIBTOOL is obsolete, replace it with LT_INIT
             (Robert-André Mauchin).
  github#5   Port chafa to i386 architecture (Mo Zhou).
  github#7   Chafa should not return an error when being asked for
             --version (Mo Zhou).
  github#10  Fix detection of MagickWand methods (Felix Yan).
  github#11  ImageMagick 7 support (found by Felix Yan).
  github#21  chafa.c:547: pointless assignment (found by @dcb314).

0.9.0 (2018-04-24)
------------------

Initial release.