From b300bace0f1da0fe19336ad8b3a70802fc49a57a Mon Sep 17 00:00:00 2001
From: Simon Ser <contact@emersion.fr>
Date: Tue, 14 Apr 2020 14:57:12 +0200
Subject: [PATCH] Implement create_output command for headless backend

---
 sway/commands/create_output.c | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/sway/commands/create_output.c b/sway/commands/create_output.c
index 9961c8fb..79283fd1 100644
--- a/sway/commands/create_output.c
+++ b/sway/commands/create_output.c
@@ -1,4 +1,5 @@
 #include <wlr/config.h>
+#include <wlr/backend/headless.h>
 #include <wlr/backend/multi.h>
 #include <wlr/backend/wayland.h>
 #if WLR_HAS_X11_BACKEND
@@ -17,6 +18,9 @@ static void create_output(struct wlr_backend *backend, void *data) {
 	if (wlr_backend_is_wl(backend)) {
 		wlr_wl_output_create(backend);
 		*done = true;
+	} else if (wlr_backend_is_headless(backend)) {
+		wlr_headless_add_output(backend, 1920, 1080);
+		*done = true;
 	}
 #if WLR_HAS_X11_BACKEND
 	else if (wlr_backend_is_x11(backend)) {
@@ -38,7 +42,7 @@ struct cmd_results *cmd_create_output(int argc, char **argv) {
 
 	if (!done) {
 		return cmd_results_new(CMD_INVALID,
-				"Can only create outputs for Wayland or X11 backends");
+			"Can only create outputs for Wayland, X11 or headless backends");
 	}
 
 	return cmd_results_new(CMD_SUCCESS, NULL);