# llimphi-term-graphics

Agnostic decoder of terminal graphics protocols.

Two protocols covered:

- **kitty graphics protocol** — APC sequences `\e_G<control>;<base64>\e\\`.
  It supports chunked transmission (`m=1`), the `f=100` (PNG/JPEG/… through the
  `image` crate), `f=24` (raw RGB) and `f=32` (raw RGBA) formats, and `o=z`
  (zlib) compression. Actions `t`/`T` (transmit [and display]), `q` (query),
  `d` (delete).
- **sixel** — DCS sequences `\eP<params>q<data>\e\\`. A hand-written decoder
  (palette, `#` colour selection, `!` RLE, `$` CR, `-` LF, `"` raster
  attributes).

Its heart is `GraphicsScanner`: a streaming automaton fed the PTY's byte chunks.
It lets **all** ordinary text and ANSI escapes through untouched (so the vt100
emulator can process them) and only **hijacks** complete graphics sequences,
returning them decoded as a `GraphicsCommand`. It has no UI state and no render
dependencies: it produces RGBA8 pixels and the caller uploads them to a texture
or a `peniko::Image`.

It is robust to chunk boundaries: a sequence split across two `feed()` calls is
buffered and completed on the next one.

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Part of **llimphi** — see [llimphi](../README.md).