backport commit 0b3496f:
Add support for SDL3 joystick input driver

Index: drivers/sdl/joypad_sdl.h
--- drivers/sdl/joypad_sdl.h.orig
+++ drivers/sdl/joypad_sdl.h
@@ -0,0 +1,69 @@
+/**************************************************************************/
+/*  joypad_sdl.h                                                          */
+/**************************************************************************/
+/*                         This file is part of:                          */
+/*                             GODOT ENGINE                               */
+/*                        https://godotengine.org                         */
+/**************************************************************************/
+/* Copyright (c) 2014-present Godot Engine contributors (see AUTHORS.md). */
+/* Copyright (c) 2007-2014 Juan Linietsky, Ariel Manzur.                  */
+/*                                                                        */
+/* Permission is hereby granted, free of charge, to any person obtaining  */
+/* a copy of this software and associated documentation files (the        */
+/* "Software"), to deal in the Software without restriction, including    */
+/* without limitation the rights to use, copy, modify, merge, publish,    */
+/* distribute, sublicense, and/or sell copies of the Software, and to     */
+/* permit persons to whom the Software is furnished to do so, subject to  */
+/* the following conditions:                                              */
+/*                                                                        */
+/* The above copyright notice and this permission notice shall be         */
+/* included in all copies or substantial portions of the Software.        */
+/*                                                                        */
+/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,        */
+/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF     */
+/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. */
+/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY   */
+/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,   */
+/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE      */
+/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.                 */
+/**************************************************************************/
+
+#pragma once
+
+#include "core/input/input.h"
+#include "core/os/thread.h"
+
+typedef uint32_t SDL_JoystickID;
+typedef struct HWND__ *HWND;
+
+class JoypadSDL {
+public:
+	JoypadSDL();
+	~JoypadSDL();
+
+	static JoypadSDL *get_singleton();
+
+	Error initialize();
+	void process_events();
+#ifdef WINDOWS_ENABLED
+	void setup_sdl_helper_window(HWND p_hwnd);
+#endif
+
+private:
+	struct Joypad {
+		bool attached = false;
+		StringName guid;
+
+		SDL_JoystickID sdl_instance_idx;
+
+		bool supports_force_feedback = false;
+		uint64_t ff_effect_timestamp = 0;
+	};
+
+	static JoypadSDL *singleton;
+
+	Joypad joypads[Input::JOYPADS_MAX];
+	HashMap<SDL_JoystickID, int> sdl_instance_id_to_joypad_id;
+
+	void close_joypad(int p_pad_idx);
+};
