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core: Don't rebuild view list on surface-local changes

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If a surface changes size or opaque region, or a view changes position,
we don't need to rebuild the entire view list from scratch: we can just
rebuild what's changed and nothing else.

Signed-off-by: Daniel Stone <daniels@collabora.com>
This commit is contained in:
Daniel Stone 2025-10-13 14:57:12 +01:00 • committed by Derek Foreman
parent 562a368fbd
commit abfe874a51
3 changed files with 13 additions and 9 deletions
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13
libweston/compositor.c
View file

@ -111,9 +111,6 @@ static void
subsurface_committed(struct weston_surface *surface,
struct weston_coord_surface new_origin);
static void
weston_view_geometry_dirty_internal(struct weston_view *view);
static bool
weston_view_is_fully_blended(struct weston_view *ev,
pixman_region32_t *region);
@ -1884,7 +1881,7 @@ weston_view_update_transform(struct weston_view *view)
}
}
static void
void
weston_view_geometry_dirty_internal(struct weston_view *view)
{
struct weston_view *child;
@ -1987,7 +1984,8 @@ weston_view_set_rel_position(struct weston_view *view,
return;
view->geometry.pos_offset = offset.c;
weston_view_geometry_dirty(view);
weston_view_geometry_dirty_internal(view);
weston_view_update_transform(view);
}
WL_EXPORT void
@ -2002,7 +2000,8 @@ weston_view_set_position(struct weston_view *view,
return;
view->geometry.pos_offset = pos.c;
weston_view_geometry_dirty(view);
weston_view_geometry_dirty_internal(view);
weston_view_update_transform(view);
}
WL_EXPORT void
@ -2373,7 +2372,7 @@ surface_set_size(struct weston_surface *surface, int32_t width, int32_t height)
surface->height = height;
wl_list_for_each(view, &surface->views, surface_link)
weston_view_geometry_dirty(view);
weston_view_geometry_dirty_internal(view);
}
WL_EXPORT void

3
libweston/libweston-internal.h
View file

@ -554,6 +554,9 @@ bool
weston_view_takes_input_at_point(struct weston_view *view,
struct weston_coord_surface surf_pos);
void
weston_view_geometry_dirty_internal(struct weston_view *view);
void
weston_paint_node_move_to_plane(struct weston_paint_node *pnode,
struct weston_plane *plane);

6
libweston/surface-state.c
View file

@ -340,8 +340,10 @@ weston_surface_apply_state(struct weston_surface *surface,
if (!pixman_region32_equal(&opaque, &surface->opaque)) {
pixman_region32_copy(&surface->opaque, &opaque);
wl_list_for_each(view, &surface->views, surface_link)
weston_view_geometry_dirty(view);
wl_list_for_each(view, &surface->views, surface_link) {
weston_view_geometry_dirty_internal(view);
weston_view_update_transform(view);
}
}
pixman_region32_fini(&opaque);