int
SDL_DINPUT_HapticInit(void)
{
HRESULT ret;
HINSTANCE instance;
if (dinput != NULL) { /* Already open. */
return SDL_SetError("Haptic: SubSystem already open.");
}
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 %lu.",
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);
}
return 0;
}
/*
* Cleans up after the subsystem.
*/
void
SDL_HapticQuit(void)
{
SDL_SYS_HapticQuit();
SDL_assert(SDL_haptics == NULL);
SDL_haptics = NULL;
}
/*
* Cleans up after the subsystem.
*/
void
SDL_HapticQuit(void)
{
SDL_SYS_HapticQuit();
SDL_free(SDL_haptics);
SDL_haptics = NULL;
SDL_numhaptics = 0;
}
/*
* 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;
}
