Function switchdevice

src/inputdevice.cpp:6048–6332

}

static int switchdevice (struct uae_input_device *id, int num, bool buttonmode)
{
	int ismouse = 0;
	int newport = 0;
	int newslot = -1;
	int devindex = -1;
	int flags = 0;
	const TCHAR *name = NULL, *fname = NULL;
	int otherbuttonpressed = 0;
	int acc = input_acquired;
	const int *customswitch = NULL;


#if SWITCH_DEBUG
	write_log (_T("switchdevice '%s' %d %d\n"), id->name, num, buttonmode);
#endif

	if (num >= 4)
		return 0;
	if (!currprefs.input_autoswitch)
		return false;
	if (!target_can_autoswitchdevice())
		return 0;

	for (int i = 0; i < MAX_INPUT_DEVICES; i++) {
		if (id == &joysticks[i]) {
			name = idev[IDTYPE_JOYSTICK].get_uniquename (i);
			fname = idev[IDTYPE_JOYSTICK].get_friendlyname (i);
			newport = num == 0 ? 1 : 0;
			flags = idev[IDTYPE_JOYSTICK].get_flags (i);
			for (int j = 0; j < MAX_INPUT_DEVICES; j++) {
				if (j != i) {
					struct uae_input_device2 *id2 = &joysticks2[j];
					if (id2->buttonmask)
						otherbuttonpressed = 1;
				}
			}
			customswitch = custom_autoswitch_joy;
			devindex = i;
		} else if (id == &mice[i]) {
			ismouse = 1;
			name = idev[IDTYPE_MOUSE].get_uniquename (i);
			fname = idev[IDTYPE_MOUSE].get_friendlyname (i);
			newport = num == 0 ? 0 : 1;
			flags = idev[IDTYPE_MOUSE].get_flags (i);
			customswitch = custom_autoswitch_mouse;
			devindex = i;
		}
	}
	if (!name) {
#if SWITCH_DEBUG
		write_log(_T("device not found!?\n"));
#endif
		return 0;
	}
	if (buttonmode) {
		if (num == 0 && otherbuttonpressed)
			newport = newport ? 0 : 1;