Make window creation with custom position do not flash

main/main.cpp

@@ -1956,9 +1956,15 @@ Error Main::setup2(Thread::ID p_main_tid_override) {
 	{
 		String display_driver = DisplayServer::get_create_function_name(display_driver_idx);
 
+		Vector2i *window_position = nullptr;
+		Vector2i position = init_custom_pos;
+		if (init_use_custom_pos) {
+			window_position = &position;
+		}
+
 		// rendering_driver now held in static global String in main and initialized in setup()
 		Error err;
-		display_server = DisplayServer::create(display_driver_idx, rendering_driver, window_mode, window_vsync_mode, window_flags, window_size, err);
+		display_server = DisplayServer::create(display_driver_idx, rendering_driver, window_mode, window_vsync_mode, window_flags, window_position, window_size, err);
 		if (err != OK || display_server == nullptr) {
 			// We can't use this display server, try other ones as fallback.
 			// Skip headless (always last registered) because that's not what users
@@ -1967,7 +1973,7 @@ Error Main::setup2(Thread::ID p_main_tid_override) {
 				if (i == display_driver_idx) {
 					continue; // Don't try the same twice.
 				}
-				display_server = DisplayServer::create(i, rendering_driver, window_mode, window_vsync_mode, window_flags, window_size, err);
+				display_server = DisplayServer::create(i, rendering_driver, window_mode, window_vsync_mode, window_flags, window_position, window_size, err);
 				if (err == OK && display_server != nullptr) {
 					break;
 				}

platform/android/display_server_android.cpp

@@ -440,8 +440,8 @@ Vector<String> DisplayServerAndroid::get_rendering_drivers_func() {
 	return drivers;
 }
 
-DisplayServer *DisplayServerAndroid::create_func(const String &p_rendering_driver, DisplayServer::WindowMode p_mode, DisplayServer::VSyncMode p_vsync_mode, uint32_t p_flags, const Vector2i &p_resolution, Error &r_error) {
-	DisplayServer *ds = memnew(DisplayServerAndroid(p_rendering_driver, p_mode, p_vsync_mode, p_flags, p_resolution, r_error));
+DisplayServer *DisplayServerAndroid::create_func(const String &p_rendering_driver, DisplayServer::WindowMode p_mode, DisplayServer::VSyncMode p_vsync_mode, uint32_t p_flags, const Vector2i *p_position, const Vector2i &p_resolution, Error &r_error) {
+	DisplayServer *ds = memnew(DisplayServerAndroid(p_rendering_driver, p_mode, p_vsync_mode, p_flags, p_position, p_resolution, r_error));
 	if (r_error != OK) {
 		OS::get_singleton()->alert("Your video card driver does not support any of the supported Vulkan versions.", "Unable to initialize Video driver");
 	}
@@ -485,7 +485,7 @@ void DisplayServerAndroid::notify_surface_changed(int p_width, int p_height) {
 	rect_changed_callback.callp(reinterpret_cast<const Variant **>(&sizep), 1, ret, ce);
 }
 
-DisplayServerAndroid::DisplayServerAndroid(const String &p_rendering_driver, DisplayServer::WindowMode p_mode, DisplayServer::VSyncMode p_vsync_mode, uint32_t p_flags, const Vector2i &p_resolution, Error &r_error) {
+DisplayServerAndroid::DisplayServerAndroid(const String &p_rendering_driver, DisplayServer::WindowMode p_mode, DisplayServer::VSyncMode p_vsync_mode, uint32_t p_flags, const Vector2i *p_position, const Vector2i &p_resolution, Error &r_error) {
 	rendering_driver = p_rendering_driver;
 
 	// TODO: rendering_driver is broken, change when different drivers are supported again

platform/android/display_server_android.h

@@ -194,7 +194,7 @@ public:
 	virtual void mouse_set_mode(MouseMode p_mode) override;
 	virtual MouseMode mouse_get_mode() const override;
 
-	static DisplayServer *create_func(const String &p_rendering_driver, WindowMode p_mode, DisplayServer::VSyncMode p_vsync_mode, uint32_t p_flags, const Vector2i &p_resolution, Error &r_error);
+	static DisplayServer *create_func(const String &p_rendering_driver, WindowMode p_mode, DisplayServer::VSyncMode p_vsync_mode, uint32_t p_flags, const Vector2i *p_position, const Vector2i &p_resolution, Error &r_error);
 	static Vector<String> get_rendering_drivers_func();
 	static void register_android_driver();
 
@@ -204,7 +204,7 @@ public:
 	virtual Point2i mouse_get_position() const override;
 	virtual MouseButton mouse_get_button_state() const override;
 
-	DisplayServerAndroid(const String &p_rendering_driver, WindowMode p_mode, DisplayServer::VSyncMode p_vsync_mode, uint32_t p_flags, const Vector2i &p_resolution, Error &r_error);
+	DisplayServerAndroid(const String &p_rendering_driver, WindowMode p_mode, DisplayServer::VSyncMode p_vsync_mode, uint32_t p_flags, const Vector2i *p_position, const Vector2i &p_resolution, Error &r_error);
 	~DisplayServerAndroid();
 };
 

platform/ios/display_server_ios.h

@@ -73,7 +73,7 @@ class DisplayServerIOS : public DisplayServer {
 
 	void perform_event(const Ref<InputEvent> &p_event);
 
-	DisplayServerIOS(const String &p_rendering_driver, DisplayServer::WindowMode p_mode, DisplayServer::VSyncMode p_vsync_mode, uint32_t p_flags, const Vector2i &p_resolution, Error &r_error);
+	DisplayServerIOS(const String &p_rendering_driver, DisplayServer::WindowMode p_mode, DisplayServer::VSyncMode p_vsync_mode, uint32_t p_flags, const Vector2i *p_position, const Vector2i &p_resolution, Error &r_error);
 	~DisplayServerIOS();
 
 public:
@@ -82,7 +82,7 @@ public:
 	static DisplayServerIOS *get_singleton();
 
 	static void register_ios_driver();
-	static DisplayServer *create_func(const String &p_rendering_driver, WindowMode p_mode, DisplayServer::VSyncMode p_vsync_mode, uint32_t p_flags, const Vector2i &p_resolution, Error &r_error);
+	static DisplayServer *create_func(const String &p_rendering_driver, WindowMode p_mode, DisplayServer::VSyncMode p_vsync_mode, uint32_t p_flags, const Vector2i *p_position, const Vector2i &p_resolution, Error &r_error);
 	static Vector<String> get_rendering_drivers_func();
 
 	// MARK: - Events

platform/ios/display_server_ios.mm

@@ -50,7 +50,7 @@ DisplayServerIOS *DisplayServerIOS::get_singleton() {
 	return (DisplayServerIOS *)DisplayServer::get_singleton();
 }
 
-DisplayServerIOS::DisplayServerIOS(const String &p_rendering_driver, WindowMode p_mode, DisplayServer::VSyncMode p_vsync_mode, uint32_t p_flags, const Vector2i &p_resolution, Error &r_error) {
+DisplayServerIOS::DisplayServerIOS(const String &p_rendering_driver, WindowMode p_mode, DisplayServer::VSyncMode p_vsync_mode, uint32_t p_flags, const Vector2i *p_position, const Vector2i &p_resolution, Error &r_error) {
 	rendering_driver = p_rendering_driver;
 
 	// Init TTS
@@ -152,8 +152,8 @@ DisplayServerIOS::~DisplayServerIOS() {
 #endif
 }
 
-DisplayServer *DisplayServerIOS::create_func(const String &p_rendering_driver, WindowMode p_mode, DisplayServer::VSyncMode p_vsync_mode, uint32_t p_flags, const Vector2i &p_resolution, Error &r_error) {
-	return memnew(DisplayServerIOS(p_rendering_driver, p_mode, p_vsync_mode, p_flags, p_resolution, r_error));
+DisplayServer *DisplayServerIOS::create_func(const String &p_rendering_driver, WindowMode p_mode, DisplayServer::VSyncMode p_vsync_mode, uint32_t p_flags, const Vector2i *p_position, const Vector2i &p_resolution, Error &r_error) {
+	return memnew(DisplayServerIOS(p_rendering_driver, p_mode, p_vsync_mode, p_flags, p_position, p_resolution, r_error));
 }
 
 Vector<String> DisplayServerIOS::get_rendering_drivers_func() {

platform/linuxbsd/display_server_x11.cpp

@@ -4432,8 +4432,8 @@ Vector<String> DisplayServerX11::get_rendering_drivers_func() {
 	return drivers;
 }
 
-DisplayServer *DisplayServerX11::create_func(const String &p_rendering_driver, WindowMode p_mode, VSyncMode p_vsync_mode, uint32_t p_flags, const Vector2i &p_resolution, Error &r_error) {
-	DisplayServer *ds = memnew(DisplayServerX11(p_rendering_driver, p_mode, p_vsync_mode, p_flags, p_resolution, r_error));
+DisplayServer *DisplayServerX11::create_func(const String &p_rendering_driver, WindowMode p_mode, VSyncMode p_vsync_mode, uint32_t p_flags, const Vector2i *p_position, const Vector2i &p_resolution, Error &r_error) {
+	DisplayServer *ds = memnew(DisplayServerX11(p_rendering_driver, p_mode, p_vsync_mode, p_flags, p_position, p_resolution, r_error));
 	if (r_error != OK) {
 		if (p_rendering_driver == "vulkan") {
 			String executable_name = OS::get_singleton()->get_executable_path().get_file();
@@ -4693,7 +4693,7 @@ DisplayServerX11::WindowID DisplayServerX11::_create_window(WindowMode p_mode, V
 	return id;
 }
 
-DisplayServerX11::DisplayServerX11(const String &p_rendering_driver, WindowMode p_mode, VSyncMode p_vsync_mode, uint32_t p_flags, const Vector2i &p_resolution, Error &r_error) {
+DisplayServerX11::DisplayServerX11(const String &p_rendering_driver, WindowMode p_mode, VSyncMode p_vsync_mode, uint32_t p_flags, const Vector2i *p_position, const Vector2i &p_resolution, Error &r_error) {
 	Input::get_singleton()->set_event_dispatch_function(_dispatch_input_events);
 
 	r_error = OK;
@@ -4920,6 +4920,11 @@ DisplayServerX11::DisplayServerX11(const String &p_rendering_driver, WindowMode
 	Point2i window_position(
 			(screen_get_size(0).width - p_resolution.width) / 2,
 			(screen_get_size(0).height - p_resolution.height) / 2);
+
+	if (p_position != nullptr) {
+		window_position = *p_position;
+	}
+
 	WindowID main_window = _create_window(p_mode, p_vsync_mode, p_flags, Rect2i(window_position, p_resolution));
 	if (main_window == INVALID_WINDOW_ID) {
 		r_error = ERR_CANT_CREATE;

platform/linuxbsd/display_server_x11.h

@@ -444,12 +444,12 @@ public:
 	virtual void set_native_icon(const String &p_filename) override;
 	virtual void set_icon(const Ref<Image> &p_icon) override;
 
-	static DisplayServer *create_func(const String &p_rendering_driver, WindowMode p_mode, VSyncMode p_vsync_mode, uint32_t p_flags, const Vector2i &p_resolution, Error &r_error);
+	static DisplayServer *create_func(const String &p_rendering_driver, WindowMode p_mode, VSyncMode p_vsync_mode, uint32_t p_flags, const Vector2i *p_position, const Vector2i &p_resolution, Error &r_error);
 	static Vector<String> get_rendering_drivers_func();
 
 	static void register_x11_driver();
 
-	DisplayServerX11(const String &p_rendering_driver, WindowMode p_mode, VSyncMode p_vsync_mode, uint32_t p_flags, const Vector2i &p_resolution, Error &r_error);
+	DisplayServerX11(const String &p_rendering_driver, WindowMode p_mode, VSyncMode p_vsync_mode, uint32_t p_flags, const Vector2i *p_position, const Vector2i &p_resolution, Error &r_error);
 	~DisplayServerX11();
 };
 

platform/macos/display_server_macos.h

@@ -430,12 +430,12 @@ public:
 	virtual void set_native_icon(const String &p_filename) override;
 	virtual void set_icon(const Ref<Image> &p_icon) override;
 
-	static DisplayServer *create_func(const String &p_rendering_driver, WindowMode p_mode, VSyncMode p_vsync_mode, uint32_t p_flags, const Vector2i &p_resolution, Error &r_error);
+	static DisplayServer *create_func(const String &p_rendering_driver, WindowMode p_mode, VSyncMode p_vsync_mode, uint32_t p_flags, const Vector2i *p_position, const Vector2i &p_resolution, Error &r_error);
 	static Vector<String> get_rendering_drivers_func();
 
 	static void register_macos_driver();
 
-	DisplayServerMacOS(const String &p_rendering_driver, WindowMode p_mode, VSyncMode p_vsync_mode, uint32_t p_flags, const Vector2i &p_resolution, Error &r_error);
+	DisplayServerMacOS(const String &p_rendering_driver, WindowMode p_mode, VSyncMode p_vsync_mode, uint32_t p_flags, const Vector2i *p_position, const Vector2i &p_resolution, Error &r_error);
 	~DisplayServerMacOS();
 };
 

platform/macos/display_server_macos.mm

@@ -3405,8 +3405,8 @@ void DisplayServerMacOS::set_icon(const Ref<Image> &p_icon) {
 	[NSApp setApplicationIconImage:nsimg];
 }
 
-DisplayServer *DisplayServerMacOS::create_func(const String &p_rendering_driver, WindowMode p_mode, VSyncMode p_vsync_mode, uint32_t p_flags, const Vector2i &p_resolution, Error &r_error) {
-	DisplayServer *ds = memnew(DisplayServerMacOS(p_rendering_driver, p_mode, p_vsync_mode, p_flags, p_resolution, r_error));
+DisplayServer *DisplayServerMacOS::create_func(const String &p_rendering_driver, WindowMode p_mode, VSyncMode p_vsync_mode, uint32_t p_flags, const Vector2i *p_position, const Vector2i &p_resolution, Error &r_error) {
+	DisplayServer *ds = memnew(DisplayServerMacOS(p_rendering_driver, p_mode, p_vsync_mode, p_flags, p_position, p_resolution, r_error));
 	if (r_error != OK) {
 		if (p_rendering_driver == "vulkan") {
 			String executable_command;
@@ -3575,7 +3575,7 @@ bool DisplayServerMacOS::mouse_process_popups(bool p_close) {
 	return closed;
 }
 
-DisplayServerMacOS::DisplayServerMacOS(const String &p_rendering_driver, WindowMode p_mode, VSyncMode p_vsync_mode, uint32_t p_flags, const Vector2i &p_resolution, Error &r_error) {
+DisplayServerMacOS::DisplayServerMacOS(const String &p_rendering_driver, WindowMode p_mode, VSyncMode p_vsync_mode, uint32_t p_flags, const Vector2i *p_position, const Vector2i &p_resolution, Error &r_error) {
 	Input::get_singleton()->set_event_dispatch_function(_dispatch_input_events);
 
 	r_error = OK;
@@ -3684,6 +3684,11 @@ DisplayServerMacOS::DisplayServerMacOS(const String &p_rendering_driver, WindowM
 	Point2i window_position(
 			screen_get_position(0).x + (screen_get_size(0).width - p_resolution.width) / 2,
 			screen_get_position(0).y + (screen_get_size(0).height - p_resolution.height) / 2);
+
+	if (p_position != nullptr) {
+		window_position = *p_position;
+	}
+
 	WindowID main_window = _create_window(p_mode, p_vsync_mode, Rect2i(window_position, p_resolution));
 	ERR_FAIL_COND(main_window == INVALID_WINDOW_ID);
 	for (int i = 0; i < WINDOW_FLAG_MAX; i++) {

platform/web/display_server_web.cpp

@@ -738,11 +738,11 @@ void DisplayServerWeb::_dispatch_input_event(const Ref<InputEvent> &p_event) {
 	}
 }
 
-DisplayServer *DisplayServerWeb::create_func(const String &p_rendering_driver, WindowMode p_window_mode, VSyncMode p_vsync_mode, uint32_t p_flags, const Size2i &p_resolution, Error &r_error) {
-	return memnew(DisplayServerWeb(p_rendering_driver, p_window_mode, p_vsync_mode, p_flags, p_resolution, r_error));
+DisplayServer *DisplayServerWeb::create_func(const String &p_rendering_driver, WindowMode p_window_mode, VSyncMode p_vsync_mode, uint32_t p_flags, const Point2i *p_position, const Size2i &p_resolution, Error &r_error) {
+	return memnew(DisplayServerWeb(p_rendering_driver, p_window_mode, p_vsync_mode, p_flags, p_position, p_resolution, r_error));
 }
 
-DisplayServerWeb::DisplayServerWeb(const String &p_rendering_driver, WindowMode p_window_mode, VSyncMode p_vsync_mode, uint32_t p_flags, const Size2i &p_resolution, Error &r_error) {
+DisplayServerWeb::DisplayServerWeb(const String &p_rendering_driver, WindowMode p_window_mode, VSyncMode p_vsync_mode, uint32_t p_flags, const Point2i *p_position, const Size2i &p_resolution, Error &r_error) {
 	r_error = OK; // Always succeeds for now.
 
 	// Ensure the canvas ID.

platform/web/display_server_web.h

@@ -96,7 +96,7 @@ private:
 	static void _js_utterance_callback(int p_event, int p_id, int p_pos);
 
 	static Vector<String> get_rendering_drivers_func();
-	static DisplayServer *create_func(const String &p_rendering_driver, WindowMode p_window_mode, VSyncMode p_vsync_mode, uint32_t p_flags, const Vector2i &p_resolution, Error &r_error);
+	static DisplayServer *create_func(const String &p_rendering_driver, WindowMode p_window_mode, VSyncMode p_vsync_mode, uint32_t p_flags, const Vector2i *p_position, const Vector2i &p_resolution, Error &r_error);
 
 	static void _dispatch_input_event(const Ref<InputEvent> &p_event);
 
@@ -221,7 +221,7 @@ public:
 	virtual void swap_buffers() override;
 
 	static void register_web_driver();
-	DisplayServerWeb(const String &p_rendering_driver, WindowMode p_window_mode, VSyncMode p_vsync_mode, uint32_t p_flags, const Size2i &p_resolution, Error &r_error);
+	DisplayServerWeb(const String &p_rendering_driver, WindowMode p_window_mode, VSyncMode p_vsync_mode, uint32_t p_flags, const Point2i *p_position, const Size2i &p_resolution, Error &r_error);
 	~DisplayServerWeb();
 };
 

platform/windows/display_server_windows.cpp

@@ -3704,7 +3704,7 @@ void DisplayServerWindows::tablet_set_current_driver(const String &p_driver) {
 	}
 }
 
-DisplayServerWindows::DisplayServerWindows(const String &p_rendering_driver, WindowMode p_mode, VSyncMode p_vsync_mode, uint32_t p_flags, const Vector2i &p_resolution, Error &r_error) {
+DisplayServerWindows::DisplayServerWindows(const String &p_rendering_driver, WindowMode p_mode, VSyncMode p_vsync_mode, uint32_t p_flags, const Vector2i *p_position, const Vector2i &p_resolution, Error &r_error) {
 	drop_events = false;
 	key_event_pos = 0;
 
@@ -3856,6 +3856,10 @@ DisplayServerWindows::DisplayServerWindows(const String &p_rendering_driver, Win
 			(screen_get_size(0).width - p_resolution.width) / 2,
 			(screen_get_size(0).height - p_resolution.height) / 2);
 
+	if (p_position != nullptr) {
+		window_position = *p_position;
+	}
+
 	WindowID main_window = _create_window(p_mode, p_vsync_mode, 0, Rect2i(window_position, p_resolution));
 	ERR_FAIL_COND_MSG(main_window == INVALID_WINDOW_ID, "Failed to create main window.");
 
@@ -3919,8 +3923,8 @@ Vector<String> DisplayServerWindows::get_rendering_drivers_func() {
 	return drivers;
 }
 
-DisplayServer *DisplayServerWindows::create_func(const String &p_rendering_driver, WindowMode p_mode, VSyncMode p_vsync_mode, uint32_t p_flags, const Vector2i &p_resolution, Error &r_error) {
-	DisplayServer *ds = memnew(DisplayServerWindows(p_rendering_driver, p_mode, p_vsync_mode, p_flags, p_resolution, r_error));
+DisplayServer *DisplayServerWindows::create_func(const String &p_rendering_driver, WindowMode p_mode, VSyncMode p_vsync_mode, uint32_t p_flags, const Vector2i *p_position, const Vector2i &p_resolution, Error &r_error) {
+	DisplayServer *ds = memnew(DisplayServerWindows(p_rendering_driver, p_mode, p_vsync_mode, p_flags, p_position, p_resolution, r_error));
 	if (r_error != OK) {
 		if (p_rendering_driver == "vulkan") {
 			String executable_name = OS::get_singleton()->get_executable_path().get_file();

platform/windows/display_server_windows.h

@@ -623,11 +623,11 @@ public:
 
 	virtual void set_context(Context p_context) override;
 
-	static DisplayServer *create_func(const String &p_rendering_driver, WindowMode p_mode, VSyncMode p_vsync_mode, uint32_t p_flags, const Vector2i &p_resolution, Error &r_error);
+	static DisplayServer *create_func(const String &p_rendering_driver, WindowMode p_mode, VSyncMode p_vsync_mode, uint32_t p_flags, const Vector2i *p_position, const Vector2i &p_resolution, Error &r_error);
 	static Vector<String> get_rendering_drivers_func();
 	static void register_windows_driver();
 
-	DisplayServerWindows(const String &p_rendering_driver, WindowMode p_mode, VSyncMode p_vsync_mode, uint32_t p_flags, const Vector2i &p_resolution, Error &r_error);
+	DisplayServerWindows(const String &p_rendering_driver, WindowMode p_mode, VSyncMode p_vsync_mode, uint32_t p_flags, const Vector2i *p_position, const Vector2i &p_resolution, Error &r_error);
 	~DisplayServerWindows();
 };
 

servers/display_server.cpp

@@ -865,9 +865,9 @@ Vector<String> DisplayServer::get_create_function_rendering_drivers(int p_index)
 	return server_create_functions[p_index].get_rendering_drivers_function();
 }
 
-DisplayServer *DisplayServer::create(int p_index, const String &p_rendering_driver, WindowMode p_mode, VSyncMode p_vsync_mode, uint32_t p_flags, const Vector2i &p_resolution, Error &r_error) {
+DisplayServer *DisplayServer::create(int p_index, const String &p_rendering_driver, WindowMode p_mode, VSyncMode p_vsync_mode, uint32_t p_flags, const Vector2i *p_position, const Vector2i &p_resolution, Error &r_error) {
 	ERR_FAIL_INDEX_V(p_index, server_create_count, nullptr);
-	return server_create_functions[p_index].create_function(p_rendering_driver, p_mode, p_vsync_mode, p_flags, p_resolution, r_error);
+	return server_create_functions[p_index].create_function(p_rendering_driver, p_mode, p_vsync_mode, p_flags, p_position, p_resolution, r_error);
 }
 
 void DisplayServer::_input_set_mouse_mode(Input::MouseMode p_mode) {

servers/display_server.h

@@ -72,7 +72,7 @@ public:
 		WINDOW_VIEW,
 	};
 
-	typedef DisplayServer *(*CreateFunction)(const String &, WindowMode, VSyncMode, uint32_t, const Size2i &, Error &r_error);
+	typedef DisplayServer *(*CreateFunction)(const String &, WindowMode, VSyncMode, uint32_t, const Point2i *, const Size2i &, Error &r_error);
 	typedef Vector<String> (*GetRenderingDriversFunction)();
 
 private:
@@ -483,7 +483,7 @@ public:
 	static int get_create_function_count();
 	static const char *get_create_function_name(int p_index);
 	static Vector<String> get_create_function_rendering_drivers(int p_index);
-	static DisplayServer *create(int p_index, const String &p_rendering_driver, WindowMode p_mode, VSyncMode p_vsync_mode, uint32_t p_flags, const Vector2i &p_resolution, Error &r_error);
+	static DisplayServer *create(int p_index, const String &p_rendering_driver, WindowMode p_mode, VSyncMode p_vsync_mode, uint32_t p_flags, const Vector2i *p_position, const Vector2i &p_resolution, Error &r_error);
 
 	DisplayServer();
 	~DisplayServer();

servers/display_server_headless.h

@@ -45,7 +45,7 @@ private:
 		return drivers;
 	}
 
-	static DisplayServer *create_func(const String &p_rendering_driver, DisplayServer::WindowMode p_mode, DisplayServer::VSyncMode p_vsync_mode, uint32_t p_flags, const Vector2i &p_resolution, Error &r_error) {
+	static DisplayServer *create_func(const String &p_rendering_driver, DisplayServer::WindowMode p_mode, DisplayServer::VSyncMode p_vsync_mode, uint32_t p_flags, const Vector2i *p_position, const Vector2i &p_resolution, Error &r_error) {
 		r_error = OK;
 		RasterizerDummy::make_current();
 		return memnew(DisplayServerHeadless());

tests/test_main.cpp

@@ -199,7 +199,7 @@ struct GodotTestCaseListener : public doctest::IReporter {
 			OS::get_singleton()->set_has_server_feature_callback(nullptr);
 			for (int i = 0; i < DisplayServer::get_create_function_count(); i++) {
 				if (String("headless") == DisplayServer::get_create_function_name(i)) {
-					DisplayServer::create(i, "", DisplayServer::WindowMode::WINDOW_MODE_MINIMIZED, DisplayServer::VSyncMode::VSYNC_ENABLED, 0, Vector2i(0, 0), err);
+					DisplayServer::create(i, "", DisplayServer::WindowMode::WINDOW_MODE_MINIMIZED, DisplayServer::VSyncMode::VSYNC_ENABLED, 0, nullptr, Vector2i(0, 0), err);
 					break;
 				}
 			}