image_redraw_area() used to unconditionally flag the whole pane
(PANE_REDRAW) whenever any part of it needed an image recomposited - a
pane can be much taller than the area actually disturbed (a small scroll
region, or a single line insert/delete far from where an image sits), so
this erased and retransmitted every image anywhere in the pane regardless
of proximity to the affected area. Report damage for just the area via
redraw_damage_window() instead.
image_redraw_scroll() similarly now scopes to the current scroll region
rather than redrawing the whole pane via image_redraw_all().
window_make_pane_status() gates physical redraw of border-status text on
a logical content diff, not physical damage - if something else disturbs
those cells, the text stays blank because tmux believes nothing changed.
This test currently fails and is expected to keep failing until the
general damage-tracking redraw work lands (see IMAGE-REDRAW-PLAN.md).
Three adjacent blocks shared one 'set -as terminal-features' setting
with contradictory requirements - fallback text, then real SIXEL, then
fallback text again in a single client attach. terminal-features is
only detected at client attach, not live, so this needs detach/reattach
between blocks rather than toggling the option in place.
image_redraw_start() was called with a pane's full nominal geometry
rather than the cells it actually owns in the current scene. When a
floating pane occluded part of that rectangle, the erase blanked the
floating pane's on-screen content, and the following text redraw
correctly skipped those cells (not owned by this pane), leaving them
blank with nothing to restore them.
Scale SIXEL rasters uniformly when clients have different cell dimensions, while retaining the original logical cell canvas as blank padding.
Map crops using real cell boundaries so partial final cells are not stretched or compressed.
Replace the per-cell image marker with sparse placement spans attached to
grid lines. A placement owns all of its spans and records the input
protocol, application image and placement IDs, z-index, and creation order.
This retains overlapping image layers without storing a list in every grid
cell. Grid operations move, split, clip, and remove only the affected spans.
Use the input protocol to determine image/text interaction: later text
damages SIXEL spans, while Kitty placements remain and are ordered by their
z-index. Rendering then adapts that one logical scene for each client,
rather than changing its semantics according to whether the outer terminal
uses Kitty or SIXEL.
mage reference. Deferred pane redraws explain the intermittent “image never appears” behavior.
Fixed:
- Preserves image metadata while updating the text underlay in the collected ASCII path: grid.c:779
- Handles the single-cell/non-ASCII path and schedules an image redraw: screen-write.c:2631
- Uses the requested if/else for new_id.
- Adds a deterministic regression reproducing point (2): regress/image-support.sh:240
This matches Kitty’s requirement that normal text operations must not affect graphics; graphics require
explicit deletion. Kitty graphics protocol
