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Clean up image support and add regression tests

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This commit is contained in:
Michael Grant
2026-10-04 11:44:00 +01:00
parent 21948cd117
commit 3db73d7fdb
31 changed files with 465 additions and 633 deletions
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20
regress/image-splitwindow-resize-noflash.sh
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@@ -1,23 +1,7 @@
#!/bin/sh
# Regression test: interactively sizing a new floating pane by dragging
# (new-pane -M, bound by default to C-MouseDrag1Pane/C-MouseDrag1Empty)
# must not retransmit images in other panes of the same window on ongoing
# drag steps.
#
# cmd_split_window_mouse_resize() (cmd-split-window.c) used to call
# server_redraw_window() unconditionally on every motion event while
# sizing the new floating pane, wiping and retransmitting every image in
# the window on each step even though only the new pane's own rectangle
# actually changed. See tmux-image-redraw-known-bugs.md for the full
# write-up.
#
# Creating the floating pane itself causes one legitimate, unrelated
# redraw (pane creation always redraws the session - see
# server_redraw_session() in cmd-split-window.c), so this checks DCS
# (\033P) counts only for the *ongoing* drag-motion steps after that
# initial creation, once c->tty.mouse_drag_update is already bound to the
# resize callback: with the fix, none should appear there.
# Sizing a new floating pane must not retransmit images in other panes.
# Wait for the initial creation redraw before checking subsequent drag steps.
. ./image-noflash-common.inc