diff options
Diffstat (limited to 'include/wlr')
| -rw-r--r-- | include/wlr/types/wlr_surface.h | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/include/wlr/types/wlr_surface.h b/include/wlr/types/wlr_surface.h index d247df0c..b44e50f5 100644 --- a/include/wlr/types/wlr_surface.h +++ b/include/wlr/types/wlr_surface.h @@ -62,6 +62,10 @@ struct wlr_surface_state { } viewport; struct wl_listener buffer_destroy; + + // Number of locks that prevent this surface state from being committed. + size_t cached_state_locks; + struct wl_list cached_state_link; // wlr_surface.cached }; struct wlr_surface_role { @@ -124,6 +128,8 @@ struct wlr_surface { */ struct wlr_surface_state current, pending, previous; + struct wl_list cached; // wlr_surface_state.cached_link + const struct wlr_surface_role *role; // the lifetime-bound role or NULL void *role_data; // role-specific data @@ -293,4 +299,23 @@ void wlr_surface_get_effective_damage(struct wlr_surface *surface, void wlr_surface_get_buffer_source_box(struct wlr_surface *surface, struct wlr_fbox *box); +/** + * Acquire a lock for the pending surface state. + * + * The state won't be committed before the caller releases the lock. Instead, + * the state becomes cached. The caller needs to use wlr_surface_unlock_cached + * to release the lock. + * + * Returns a surface commit sequence number for the cached state. + */ +uint32_t wlr_surface_lock_pending(struct wlr_surface *surface); + +/** + * Release a lock for a cached state. + * + * Callers should not assume that the cached state will immediately be + * committed. Another caller may still have an active lock. + */ +void wlr_surface_unlock_cached(struct wlr_surface *surface, uint32_t seq); + #endif |