Wire up linux_dmabuf in rootston

include/rootston/desktop.h

@@ -7,6 +7,7 @@
 #include <wlr/types/wlr_compositor.h>
 #include <wlr/types/wlr_gamma_control.h>
 #include <wlr/types/wlr_idle.h>
+#include <wlr/types/wlr_linux_dmabuf.h>
 #include <wlr/types/wlr_list.h>
 #include <wlr/types/wlr_output_layout.h>
 #include <wlr/types/wlr_output.h>
@@ -46,6 +47,7 @@ struct roots_desktop {
 	struct wlr_primary_selection_device_manager *primary_selection_device_manager;
 	struct wlr_idle *idle;
 	struct wlr_idle_inhibit_manager_v1 *idle_inhibit;
+	struct wlr_linux_dmabuf *linux_dmabuf;
 
 	struct wl_listener new_output;
 	struct wl_listener layout_change;

rootston/desktop.c

@@ -9,6 +9,7 @@
 #include <wlr/types/wlr_cursor.h>
 #include <wlr/types/wlr_gamma_control.h>
 #include <wlr/types/wlr_idle.h>
+#include <wlr/types/wlr_linux_dmabuf.h>
 #include <wlr/types/wlr_output_layout.h>
 #include <wlr/types/wlr_idle_inhibit_v1.h>
 #include <wlr/types/wlr_primary_selection.h>
@@ -729,6 +730,8 @@ struct roots_desktop *desktop_create(struct roots_server *server,
 	desktop->idle = wlr_idle_create(server->wl_display);
 	desktop->idle_inhibit = wlr_idle_inhibit_v1_create(server->wl_display);
 
+	struct wlr_egl *egl = wlr_backend_get_egl(server->backend);
+	desktop->linux_dmabuf = wlr_linux_dmabuf_create(server->wl_display, egl);
 	return desktop;
 }