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;
}
void
SDL_XINPUT_JoystickDetect(JoyStick_DeviceData **pContext)
{
int iuserid;
if (!s_bXInputEnabled) {
return;
}
/* iterate in reverse, so these are in the final list in ascending numeric order. */
for (iuserid = XUSER_MAX_COUNT - 1; iuserid >= 0; iuserid--) {
const Uint8 userid = (Uint8)iuserid;
XINPUT_CAPABILITIES capabilities;
if (XINPUTGETCAPABILITIES(userid, XINPUT_FLAG_GAMEPAD, &capabilities) == ERROR_SUCCESS) {
AddXInputDevice(userid, capabilities.SubType, pContext);
}
}
}
/*
* Initializes the haptic subsystem.
*/
int
SDL_SYS_HapticInit(void)
{
const char *env = SDL_GetHint(SDL_HINT_XINPUT_ENABLED);
HRESULT ret;
HINSTANCE instance;
if (dinput != NULL) { /* Already open. */
return SDL_SetError("Haptic: SubSystem already open.");
}
/* Clear all the memory. */
SDL_memset(SDL_hapticlist, 0, sizeof(SDL_hapticlist));
SDL_numhaptics = 0;
ret = WIN_CoInitialize();
if (FAILED(ret)) {
return DI_SetError("Coinitialize", ret);
}
coinitialized = SDL_TRUE;
ret = CoCreateInstance(&CLSID_DirectInput8, NULL, CLSCTX_INPROC_SERVER,
&IID_IDirectInput8, (LPVOID) & dinput);
if (FAILED(ret)) {
SDL_SYS_HapticQuit();
return DI_SetError("CoCreateInstance", ret);
}
/* Because we used CoCreateInstance, we need to Initialize it, first. */
instance = GetModuleHandle(NULL);
if (instance == NULL) {
SDL_SYS_HapticQuit();
return SDL_SetError("GetModuleHandle() failed with error code %d.",
GetLastError());
}
ret = IDirectInput8_Initialize(dinput, instance, DIRECTINPUT_VERSION);
if (FAILED(ret)) {
SDL_SYS_HapticQuit();
return DI_SetError("Initializing DirectInput device", ret);
}
/* Look for haptic devices. */
ret = IDirectInput8_EnumDevices(dinput,
0,
EnumHapticsCallback,
NULL,
DIEDFL_FORCEFEEDBACK |
DIEDFL_ATTACHEDONLY);
if (FAILED(ret)) {
SDL_SYS_HapticQuit();
return DI_SetError("Enumerating DirectInput devices", ret);
}
if (!env || SDL_atoi(env)) {
loaded_xinput = (WIN_LoadXInputDLL() == 0);
}
if (loaded_xinput) {
DWORD i;
const SDL_bool bIs14OrLater = (SDL_XInputVersion >= ((1<<16)|4));
for (i = 0; (i < SDL_XINPUT_MAX_DEVICES) && (SDL_numhaptics < MAX_HAPTICS); i++) {
XINPUT_CAPABILITIES caps;
if (XINPUTGETCAPABILITIES(i, XINPUT_FLAG_GAMEPAD, &caps) == ERROR_SUCCESS) {
if ((!bIs14OrLater) || (caps.Flags & XINPUT_CAPS_FFB_SUPPORTED)) {
/* !!! FIXME: I'm not bothering to query for a real name right now. */
char buf[64];
SDL_snprintf(buf, sizeof (buf), "XInput Controller #%u", i+1);
SDL_hapticlist[SDL_numhaptics].name = SDL_strdup(buf);
SDL_hapticlist[SDL_numhaptics].bXInputHaptic = 1;
SDL_hapticlist[SDL_numhaptics].userid = (Uint8) i;
SDL_numhaptics++;
}
}
}
}
return SDL_numhaptics;
}
