xwayland: Add support for -force-xrandr-emulation

include/wlr/xwayland.h

@@ -24,6 +24,7 @@ struct wlr_xwayland_server_options {
 	bool lazy;
 	bool enable_wm;
 	bool no_touch_pointer_emulation;
+	bool force_xrandr_emulation;
 	int terminate_delay; // in seconds, 0 to terminate immediately
 };
 

include/xwayland/meson.build

@@ -1,5 +1,6 @@
 have_listenfd = false
 have_no_touch_pointer_emulation = false
+have_force_xrandr_emulation = false
 have_terminate_delay = false
 if xwayland.found()
 	xwayland_path = xwayland.get_variable('xwayland')
@@ -7,6 +8,8 @@ if xwayland.found()
 		default_value: 'false') == 'true'
 	have_no_touch_pointer_emulation = xwayland.get_variable(
 		'have_no_touch_pointer_emulation', default_value: 'false') == 'true'
+	have_force_xrandr_emulation = xwayland.get_variable(
+		'have_force_xrandr_emulation', default_value: 'false') == 'true'
 	have_terminate_delay = xwayland.get_variable(pkgconfig: 'have_terminate_delay') == 'true'
 else
 	xwayland_path = xwayland_prog.full_path()
@@ -16,6 +19,7 @@ xwayland_config_data = configuration_data()
 xwayland_config_data.set_quoted('XWAYLAND_PATH', xwayland_path)
 xwayland_config_data.set10('HAVE_XWAYLAND_LISTENFD', have_listenfd)
 xwayland_config_data.set10('HAVE_XWAYLAND_NO_TOUCH_POINTER_EMULATION', have_no_touch_pointer_emulation)
+xwayland_config_data.set10('HAVE_XWAYLAND_FORCE_XRANDR_EMULATION', have_force_xrandr_emulation)
 xwayland_config_data.set10('HAVE_XWAYLAND_TERMINATE_DELAY', have_terminate_delay)
 configure_file(
 	output: 'config.h',

xwayland/server.c

@@ -90,6 +90,14 @@ noreturn static void exec_xwayland(struct wlr_xwayland_server *server,
 	server->options.no_touch_pointer_emulation = false;
 #endif
 
+#if HAVE_XWAYLAND_FORCE_XRANDR_EMULATION
+	if (server->options.force_xrandr_emulation) {
+		argv[i++] = "-force-xrandr-emulation";
+	}
+#else
+	server->options.force_xrandr_emulation = false;
+#endif
+
 	argv[i++] = NULL;
 
 	assert(i < sizeof(argv) / sizeof(argv[0]));