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overlay: refactor

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- Use a single `lab_scene_rect` for both overlay background and outlines,
  like I described in the TODO comment in ffd4005.
- Simplify the resource management by destroying the overlay tree when
  it's hidden. I think its overhead is pretty minimal.
- Share a single `lab_scene_rect` for both region/edge overlays.
This commit is contained in:
tokyo4j 2025-08-31 04:41:08 +09:00 • committed by Johan Malm
parent 78d47c5c37
commit 66e26cd28a
8 changed files with 51 additions and 154 deletions
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25
include/overlay.h
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@ -6,19 +6,8 @@
struct seat;
/* TODO: replace this with single lab_scene_rect */
struct overlay_rect {
struct wlr_scene_tree *tree;
bool bg_enabled;
struct wlr_scene_rect *bg_rect;
bool border_enabled;
struct lab_scene_rect *border_rect;
};
struct overlay {
struct overlay_rect region_rect, edge_rect;
struct lab_scene_rect *rect;
/* Represents currently shown or delayed overlay */
struct {
@ -34,15 +23,13 @@ struct overlay {
struct wl_event_source *timer;
};
void overlay_reconfigure(struct seat *seat);
/* Calls overlay_hide() internally if there's no overlay to show */
/*
* Shows or updates an overlay when the grabbed window can be snapped to
* a region or an output edge. Calls overlay_finish() otherwise.
*/
void overlay_update(struct seat *seat);
/* This function must be called when server->grabbed_view is destroyed */
void overlay_hide(struct seat *seat);
/* This function is called to clean up the timer on exit */
/* Destroys the overlay if it exists */
void overlay_finish(struct seat *seat);
#endif