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);
}
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);
}
