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expo: Set dirty flag when an object bbox changes

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Add a flag to indicate that am object must be redrawn. Set this flag
when an object's bounding box changes.

Co-developed-by: Claude <noreply@anthropic.com>
Signed-off-by: Simon Glass <sjg@chromium.org>
This commit is contained in:
Simon Glass
2025-09-18 17:11:16 -06:00
parent cec177e67b
commit f2909a4cde
3 changed files with 22 additions and 8 deletions
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7
boot/scene.c
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@@ -1300,6 +1300,7 @@ int scene_sync_bbox(struct scene *scn)
list_for_each_entry(obj, &scn->obj_head, sibling) {
int req_width = obj->req_bbox.x1 - obj->req_bbox.x0;
int req_height = obj->req_bbox.y1 - obj->req_bbox.y0;
struct vid_bbox old_bbox = obj->bbox;
if (obj->flags & SCENEOF_SYNC_POS) {
if (obj->flags & SCENEOF_SIZE_VALID) {
@@ -1321,6 +1322,12 @@ int scene_sync_bbox(struct scene *scn)
obj->bbox.x1 = obj->bbox.x0 + req_width;
if (obj->flags & SCENEOF_SYNC_BBOX)
obj->bbox = obj->req_bbox;
/* Set dirty flag if bbox changed */
if (old_bbox.x0 != obj->bbox.x0 || old_bbox.y0 != obj->bbox.y0 ||
old_bbox.x1 != obj->bbox.x1 || old_bbox.y1 != obj->bbox.y1)
obj->flags |= SCENEOF_DIRTY;
obj->flags &= ~(SCENEOF_SYNC_POS | SCENEOF_SYNC_SIZE |
SCENEOF_SYNC_WIDTH | SCENEOF_SYNC_BBOX);
}