#!/usr/bin/mscgen -Tpng

msc {
	hscale="1.5";

	c [label = "compositor"], w [label = "libweston core"],
	b [label = "backend"];

	|||;

	c => w [label = "weston_compositor_load_backend()"];
	w => b [label = "init"];

	--- [label = "Create initial heads"];
	b box b [label = "Backend discovers an entity to create a head for."];

	w <: b [label = "weston_head_init()"];
	b box b [label = "assign hw resource to head"];
	w <: b [label = "weston_head_set_monitor_strings()"];
	w <: b [label = "weston_head_set_physical_size()"];
	w <: b [label = "weston_head_set_subpixel()"];
	w <: b [label = "weston_head_set_connection_status()"];
	w <= b [label = "weston_compositor_add_head()"];
	w <= w [label = "schedule heads_changed"];
	w << b [label = "init success"];
	c << w [label = "load success"];

	|||;

	--- [label = "Compositor start-up"];

	c => w [label = "weston_compositor_flush_heads_changed()"];
	c <<= w [label = "heads_changed callback"];

}