Mitchell Hashimoto ad6e72ddc4 libghostty: add dedicated dirty row iteration + clear functions (#13852) ...

Add render state C APIs for iterating only rows that require a redraw
and for marking a completed frame clean in one call.

A one-row update in a 24-row viewport reduces dirty-row discovery from
50 calls to two, while cleanup becomes one call instead of O(N) of rows.

This lower call count is massive for environments where FFI is expensive
(Go, wasm).

The dirty next API outputs the viewport y because it jumps, unlike the
normal sequential next where its trivial for a caller to keep track.

2026-08-15 21:11:21 -07:00

..

main.c

libghostty: add dedicated dirty row iteration + clear functions (#13852)

2026-08-15 21:11:21 -07:00