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surface-state: Flag buffer params as dirty if replacing deleted buffer

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This makes replacing an invalid/deleted buffer distinguishable from
a regular buffer update. This will be important when we try to reuse
plane states in a later commit.

Signed-off-by: Derek Foreman <derek.foreman@collabora.com>
This commit is contained in:
Derek Foreman 2026-03-26 14:52:17 -05:00
parent dd74ed6db0
commit 67172d6f8f
1 changed files with 10 additions and 0 deletions
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10
libweston/surface-state.c
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@ -249,6 +249,16 @@ weston_surface_attach(struct weston_surface *surface,
}
}
/* The buffer was destroyed (!old_buffer->resource), so set the
* BUFFER_PARAMS_DIRTY bit.
*
* This is because backends can opportunistically reuse plane state
* if only the buffer has changed, but a buffer changing from invalid
* to valid needs action.
*/
if (old_buffer && !old_buffer->resource)
pnode_changes |= WESTON_PAINT_NODE_BUFFER_PARAMS_DIRTY;
if (!old_buffer ||
buffer->pixel_format != old_buffer->pixel_format ||
buffer->format_modifier != old_buffer->format_modifier) {