static void
AddXInputDevice(const Uint8 userid, BYTE SubType, JoyStick_DeviceData **pContext)
{
JoyStick_DeviceData *pPrevJoystick = NULL;
JoyStick_DeviceData *pNewJoystick = *pContext;
if (SDL_XInputUseOldJoystickMapping() && SubType != XINPUT_DEVSUBTYPE_GAMEPAD)
return;
if (SubType == XINPUT_DEVSUBTYPE_UNKNOWN)
return;
while (pNewJoystick) {
if (pNewJoystick->bXInputDevice && (pNewJoystick->XInputUserId == userid) && (pNewJoystick->SubType == SubType)) {
/* if we are replacing the front of the list then update it */
if (pNewJoystick == *pContext) {
*pContext = pNewJoystick->pNext;
} else if (pPrevJoystick) {
pPrevJoystick->pNext = pNewJoystick->pNext;
}
pNewJoystick->pNext = SYS_Joystick;
SYS_Joystick = pNewJoystick;
return; /* already in the list. */
}
pPrevJoystick = pNewJoystick;
pNewJoystick = pNewJoystick->pNext;
}
pNewJoystick = (JoyStick_DeviceData *)SDL_malloc(sizeof(JoyStick_DeviceData));
if (!pNewJoystick) {
return; /* better luck next time? */
}
SDL_zerop(pNewJoystick);
pNewJoystick->joystickname = GetXInputName(userid, SubType);
if (!pNewJoystick->joystickname) {
SDL_free(pNewJoystick);
return; /* better luck next time? */
}
pNewJoystick->bXInputDevice = SDL_TRUE;
if (SDL_XInputUseOldJoystickMapping()) {
SDL_zero(pNewJoystick->guid);
} else {
pNewJoystick->guid.data[0] = 'x';
pNewJoystick->guid.data[1] = 'i';
pNewJoystick->guid.data[2] = 'n';
pNewJoystick->guid.data[3] = 'p';
pNewJoystick->guid.data[4] = 'u';
pNewJoystick->guid.data[5] = 't';
pNewJoystick->guid.data[6] = SubType;
}
pNewJoystick->SubType = SubType;
pNewJoystick->XInputUserId = userid;
SDL_SYS_AddJoystickDevice(pNewJoystick);
}
void
SDL_XINPUT_JoystickUpdate(SDL_Joystick * joystick)
{
HRESULT result;
XINPUT_STATE_EX XInputState;
XINPUT_BATTERY_INFORMATION_EX XBatteryInformation;
if (!XINPUTGETSTATE)
return;
result = XINPUTGETSTATE(joystick->hwdata->userid, &XInputState);
if (result == ERROR_DEVICE_NOT_CONNECTED) {
joystick->hwdata->send_remove_event = SDL_TRUE;
joystick->hwdata->removed = SDL_TRUE;
return;
}
SDL_zero( XBatteryInformation );
if ( XINPUTGETBATTERYINFORMATION )
{
result = XINPUTGETBATTERYINFORMATION( joystick->hwdata->userid, BATTERY_DEVTYPE_GAMEPAD, &XBatteryInformation );
}
/* only fire events if the data changed from last time */
if (XInputState.dwPacketNumber && XInputState.dwPacketNumber != joystick->hwdata->dwPacketNumber) {
if (SDL_XInputUseOldJoystickMapping()) {
UpdateXInputJoystickState_OLD(joystick, &XInputState, &XBatteryInformation);
} else {
UpdateXInputJoystickState(joystick, &XInputState, &XBatteryInformation);
}
joystick->hwdata->dwPacketNumber = XInputState.dwPacketNumber;
}
}
int
SDL_XINPUT_JoystickOpen(SDL_Joystick * joystick, JoyStick_DeviceData *joystickdevice)
{
const Uint8 userId = joystickdevice->XInputUserId;
XINPUT_CAPABILITIES capabilities;
XINPUT_VIBRATION state;
SDL_assert(s_bXInputEnabled);
SDL_assert(XINPUTGETCAPABILITIES);
SDL_assert(XINPUTSETSTATE);
SDL_assert(userId < XUSER_MAX_COUNT);
joystick->hwdata->bXInputDevice = SDL_TRUE;
if (XINPUTGETCAPABILITIES(userId, XINPUT_FLAG_GAMEPAD, &capabilities) != ERROR_SUCCESS) {
SDL_free(joystick->hwdata);
joystick->hwdata = NULL;
return SDL_SetError("Failed to obtain XInput device capabilities. Device disconnected?");
}
SDL_zero(state);
joystick->hwdata->bXInputHaptic = (XINPUTSETSTATE(userId, &state) == ERROR_SUCCESS);
joystick->hwdata->userid = userId;
/* The XInput API has a hard coded button/axis mapping, so we just match it */
if (SDL_XInputUseOldJoystickMapping()) {
joystick->naxes = 6;
joystick->nbuttons = 15;
} else {
joystick->naxes = 6;
joystick->nbuttons = 11;
joystick->nhats = 1;
}
return 0;
}
static char *
GetXInputName(const Uint8 userid, BYTE SubType)
{
char name[32];
if (SDL_XInputUseOldJoystickMapping()) {
SDL_snprintf(name, sizeof(name), "X360 Controller #%u", 1 + userid);
} else {
switch (SubType) {
case XINPUT_DEVSUBTYPE_GAMEPAD:
SDL_snprintf(name, sizeof(name), "XInput Controller #%u", 1 + userid);
break;
case XINPUT_DEVSUBTYPE_WHEEL:
SDL_snprintf(name, sizeof(name), "XInput Wheel #%u", 1 + userid);
break;
case XINPUT_DEVSUBTYPE_ARCADE_STICK:
SDL_snprintf(name, sizeof(name), "XInput ArcadeStick #%u", 1 + userid);
break;
case XINPUT_DEVSUBTYPE_FLIGHT_STICK:
SDL_snprintf(name, sizeof(name), "XInput FlightStick #%u", 1 + userid);
break;
case XINPUT_DEVSUBTYPE_DANCE_PAD:
SDL_snprintf(name, sizeof(name), "XInput DancePad #%u", 1 + userid);
break;
case XINPUT_DEVSUBTYPE_GUITAR:
case XINPUT_DEVSUBTYPE_GUITAR_ALTERNATE:
case XINPUT_DEVSUBTYPE_GUITAR_BASS:
SDL_snprintf(name, sizeof(name), "XInput Guitar #%u", 1 + userid);
break;
case XINPUT_DEVSUBTYPE_DRUM_KIT:
SDL_snprintf(name, sizeof(name), "XInput DrumKit #%u", 1 + userid);
break;
case XINPUT_DEVSUBTYPE_ARCADE_PAD:
SDL_snprintf(name, sizeof(name), "XInput ArcadePad #%u", 1 + userid);
break;
default:
SDL_snprintf(name, sizeof(name), "XInput Device #%u", 1 + userid);
break;
}
}
return SDL_strdup(name);
}
void
SDL_XINPUT_JoystickUpdate(SDL_Joystick * joystick)
{
HRESULT result;
XINPUT_STATE_EX XInputState;
XINPUT_BATTERY_INFORMATION_EX XBatteryInformation;
if (!XINPUTGETSTATE)
return;
result = XINPUTGETSTATE(joystick->hwdata->userid, &XInputState);
if (result == ERROR_DEVICE_NOT_CONNECTED) {
return;
}
SDL_zero(XBatteryInformation);
if (XINPUTGETBATTERYINFORMATION) {
result = XINPUTGETBATTERYINFORMATION(joystick->hwdata->userid, BATTERY_DEVTYPE_GAMEPAD, &XBatteryInformation);
}
/* only fire events if the data changed from last time */
if (XInputState.dwPacketNumber && XInputState.dwPacketNumber != joystick->hwdata->dwPacketNumber) {
if (SDL_XInputUseOldJoystickMapping()) {
UpdateXInputJoystickState_OLD(joystick, &XInputState, &XBatteryInformation);
} else {
UpdateXInputJoystickState(joystick, &XInputState, &XBatteryInformation);
}
joystick->hwdata->dwPacketNumber = XInputState.dwPacketNumber;
}
if (joystick->hwdata->rumble_expiration) {
Uint32 now = SDL_GetTicks();
if (SDL_TICKS_PASSED(now, joystick->hwdata->rumble_expiration)) {
SDL_XINPUT_JoystickRumble(joystick, 0, 0, 0);
}
}
}
static void
AddXInputDevice(Uint8 userid, BYTE SubType, JoyStick_DeviceData **pContext)
{
Uint16 vendor = 0;
Uint16 product = 0;
Uint16 version = 0;
JoyStick_DeviceData *pPrevJoystick = NULL;
JoyStick_DeviceData *pNewJoystick = *pContext;
if (SDL_XInputUseOldJoystickMapping() && SubType != XINPUT_DEVSUBTYPE_GAMEPAD)
return;
if (SubType == XINPUT_DEVSUBTYPE_UNKNOWN)
return;
while (pNewJoystick) {
if (pNewJoystick->bXInputDevice && (pNewJoystick->XInputUserId == userid) && (pNewJoystick->SubType == SubType)) {
/* if we are replacing the front of the list then update it */
if (pNewJoystick == *pContext) {
*pContext = pNewJoystick->pNext;
} else if (pPrevJoystick) {
pPrevJoystick->pNext = pNewJoystick->pNext;
}
pNewJoystick->pNext = SYS_Joystick;
SYS_Joystick = pNewJoystick;
return; /* already in the list. */
}
pPrevJoystick = pNewJoystick;
pNewJoystick = pNewJoystick->pNext;
}
pNewJoystick = (JoyStick_DeviceData *)SDL_malloc(sizeof(JoyStick_DeviceData));
if (!pNewJoystick) {
return; /* better luck next time? */
}
SDL_zerop(pNewJoystick);
pNewJoystick->joystickname = GetXInputName(userid, SubType);
if (!pNewJoystick->joystickname) {
SDL_free(pNewJoystick);
return; /* better luck next time? */
}
pNewJoystick->bXInputDevice = SDL_TRUE;
if (SDL_XInputUseOldJoystickMapping()) {
SDL_zero(pNewJoystick->guid);
} else {
Uint16 *guid16 = (Uint16 *)pNewJoystick->guid.data;
GuessXInputDevice(userid, &vendor, &product, &version);
*guid16++ = SDL_SwapLE16(SDL_HARDWARE_BUS_USB);
*guid16++ = 0;
*guid16++ = SDL_SwapLE16(vendor);
*guid16++ = 0;
*guid16++ = SDL_SwapLE16(product);
*guid16++ = 0;
*guid16++ = SDL_SwapLE16(version);
*guid16++ = 0;
/* Note that this is an XInput device and what subtype it is */
pNewJoystick->guid.data[14] = 'x';
pNewJoystick->guid.data[15] = SubType;
}
pNewJoystick->SubType = SubType;
pNewJoystick->XInputUserId = userid;
if (SDL_ShouldIgnoreJoystick(pNewJoystick->joystickname, pNewJoystick->guid)) {
SDL_free(pNewJoystick);
return;
}
#ifdef SDL_JOYSTICK_HIDAPI
if (HIDAPI_IsDevicePresent(vendor, product, version)) {
/* The HIDAPI driver is taking care of this device */
SDL_free(pNewJoystick);
return;
}
#endif
WINDOWS_AddJoystickDevice(pNewJoystick);
}