Documentation for <wlr/types/wlr_fifo_v1.h>

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struct wlr_fifo_manager_v1 {
	struct wl_global *global;
	struct wl_display *display;
	
	struct wl_listener display_destroy;
	
	struct {
		struct wl_signal new_fifo;
		
		/**
		 * Signals that the fifo manager is being destroyed.
		 */
		struct wl_signal destroy;
	} events;
};

struct wlr_fifo_manager_v1 *wlr_fifo_manager_v1_create(​struct wl_display *display, uint32_t version);

struct wlr_fifo_manager_v1_new_fifo_event {
	struct wlr_fifo_v1 *fifo;
};

struct wlr_fifo_v1 {
	struct wlr_fifo_manager_v1 *fifo_manager;
	
	struct wl_resource *resource;
	struct wlr_addon addon;
	struct wlr_surface_synced synced;
	
	struct wlr_surface *surface;
	struct wlr_output *output;
	
	struct wl_listener surface_client_commit;
	struct wl_listener surface_commit;
	struct wl_listener output_commit;
	struct wl_event_source *surface_occluded_timer;
	struct wl_listener output_destroy;
	struct wl_listener fifo_manager_destroy;
	
	struct wlr_fifo_v1_fifo_state current, pending;
	bool barrier_set;
	int64_t last_output_commit_msec;
	
	/* list of commit requests waiting on the fifo barrier */
	struct wl_list commits; // fifo_commit.link
	
	struct {
		/**
		 * Signals that the fifo object is being destroyed.
		 */
		struct wl_signal destroy;
	} events;
	
	struct wl_list link; // wlr_scene.fifo_surfaces
};

struct wlr_fifo_v1_fifo_state {
	/*
	 * This field is used to set the fifo barrier on the surface.
	 * Set when the client makes a .set_barrier request. */
	 bool set_barrier;
	/*
	 * This field is used to lock a commit until the fifo barrier on the surface is cleared.
	 * Set when the client makes a .wait_barrier request. */
	 bool wait_barrier;
};

void wlr_fifo_v1_set_output(​struct wlr_fifo_v1 *fifo, struct wlr_output *output);