Branch: refs/heads/redraw-damage-rectangles
Home: https://github.com/tmux/tmux
Commit: d6074895bb40f4a4d5d5c7551d6cdcd8480f98ff
https://github.com/tmux/tmux/commit/d6074895bb40f4a4d5d5c7551d6cdcd8480f98ff
Author: Michael Grant <[email protected]>
Date: 2026-08-22 (Sat, 22 Aug 2026)
Changed paths:
M screen-redraw.c
M screen-write.c
M tmux.h
M window.c
Log Message:
-----------
screen-redraw, screen-write: add damage-rectangle tracking and composition
Introduce a per-window list of damaged rectangles (struct redraw_damage)
and redraw_damage_window() to record them, redraw_client_damage() to
consume them by composing exactly the damaged cells (via a new
redraw_draw_damage_rect(), which also force-refreshes any pane-status
span it touches, since window_make_pane_status()'s content-diff check
has no way to know the physical cells were disturbed by something else).
redraw_draw_span() now takes an explicit [clip_x, clip_x + clip_n) range
instead of always drawing a span's full width, so a damage rectangle can
redraw just the portion of a span it actually covers.
screen_write_redraw_cb() - the fallback when a write can't be applied
directly to the terminal - now reports damage for just the affected row
via this mechanism, instead of unconditionally flagging the whole pane
for a full redraw.
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