/*
* Opens the haptic device from the file descriptor.
*
* Steps:
* - Open temporary DirectInputDevice interface.
* - Create DirectInputDevice8 interface.
* - Release DirectInputDevice interface.
* - Call SDL_SYS_HapticOpenFromDevice8
*/
static int
SDL_SYS_HapticOpenFromInstance(SDL_Haptic * haptic, DIDEVICEINSTANCE instance)
{
HRESULT ret;
int ret2;
LPDIRECTINPUTDEVICE8 device;
LPDIRECTINPUTDEVICE8 device8;
/* Open the device */
ret = IDirectInput8_CreateDevice(dinput, &instance.guidInstance,
&device, NULL);
if (FAILED(ret)) {
DI_SetError("Creating DirectInput device", ret);
return -1;
}
/* Now get the IDirectInputDevice8 interface, instead. */
ret = IDirectInputDevice8_QueryInterface(device,
&IID_IDirectInputDevice8,
(LPVOID *) &device8);
/* Done with the temporary one now. */
IDirectInputDevice8_Release(device);
if (FAILED(ret)) {
DI_SetError("Querying DirectInput interface", ret);
return -1;
}
ret2 = SDL_SYS_HapticOpenFromDevice8(haptic, device8, SDL_FALSE);
if (ret2 < 0) {
IDirectInputDevice8_Release(device8);
return -1;
}
return 0;
}
int
SDL_DINPUT_HapticOpen(SDL_Haptic * haptic, SDL_hapticlist_item *item)
{
HRESULT ret;
LPDIRECTINPUTDEVICE8 device;
LPDIRECTINPUTDEVICE8 device8;
/* Open the device */
ret = IDirectInput8_CreateDevice(dinput, &item->instance.guidInstance,
&device, NULL);
if (FAILED(ret)) {
DI_SetError("Creating DirectInput device", ret);
return -1;
}
/* Now get the IDirectInputDevice8 interface, instead. */
ret = IDirectInputDevice8_QueryInterface(device,
&IID_IDirectInputDevice8,
(LPVOID *)&device8);
/* Done with the temporary one now. */
IDirectInputDevice8_Release(device);
if (FAILED(ret)) {
DI_SetError("Querying DirectInput interface", ret);
return -1;
}
if (SDL_DINPUT_HapticOpenFromDevice(haptic, device8, SDL_FALSE) < 0) {
IDirectInputDevice8_Release(device8);
return -1;
}
return 0;
}
/* joystick_enum_callback: [primary thread]
* Helper function to find out how many joysticks we have and set them up.
* At the end joydx_num_joysticks and joydx_joystick[] will be initialised.
*/
static BOOL CALLBACK joystick_enum_callback(LPCDIDEVICEINSTANCE lpddi, LPVOID pvRef)
{
DIPROPRANGE property_range =
{
/* the header */
{
sizeof(DIPROPRANGE), // diph.dwSize
sizeof(DIPROPHEADER), // diph.dwHeaderSize
0, // diph.dwObj
DIPH_DEVICE, // diph.dwHow
},
/* the data */
-32767, // lMin
+32767 // lMax
};
DIPROPDWORD property_deadzone =
{
/* the header */
{
sizeof(DIPROPDWORD), // diph.dwSize
sizeof(DIPROPHEADER), // diph.dwHeaderSize
0, // diph.dwObj
DIPH_DEVICE, // diph.dwHow
},
/* the data */
2000, // dwData
};
DIPROPDWORD property_buffersize =
{
/* the header */
{
sizeof(DIPROPDWORD), // diph.dwSize
sizeof(DIPROPHEADER), // diph.dwHeaderSize
0, // diph.dwObj
DIPH_DEVICE, // diph.dwHow
},
/* the data */
DEVICE_BUFFER_SIZE // number of data items
};
LPDIRECTINPUTDEVICE _dinput_device1;
LPDIRECTINPUTDEVICE2 dinput_device = NULL;
HRESULT hr;
LPVOID temp;
CAPS_AND_NAMES caps_and_names;
ALLEGRO_JOYSTICK_DIRECTX *joy;
int num;
(void)pvRef;
/* check if the joystick already existed before */
joy = joydx_by_guid(lpddi->guidInstance);
if (joy) {
ALLEGRO_DEBUG("Device %s still exists\n", joydx_guid_string(joy));
joy->marked = true;
return DIENUM_CONTINUE;
}
/* create the DirectInput joystick device */
hr = IDirectInput8_CreateDevice(joystick_dinput, &lpddi->guidInstance, &_dinput_device1, NULL);
if (FAILED(hr))
goto Error;
/* query the DirectInputDevice2 interface needed for the poll() method */
hr = IDirectInputDevice8_QueryInterface(_dinput_device1, &__al_IID_IDirectInputDevice8A, &temp);
IDirectInputDevice8_Release(_dinput_device1);
if (FAILED(hr))
goto Error;
dinput_device = temp;
/* enumerate objects available on the device */
memset(&caps_and_names, 0, sizeof(caps_and_names));
hr = IDirectInputDevice8_EnumObjects(dinput_device, object_enum_callback,
&caps_and_names, DIDFT_PSHBUTTON | DIDFT_AXIS | DIDFT_POV);
if (FAILED(hr))
goto Error;
/* set data format */
hr = IDirectInputDevice8_SetDataFormat(dinput_device, &__al_c_dfDIJoystick);
if (FAILED(hr))
goto Error;
/* set the range of axes */
hr = IDirectInputDevice8_SetProperty(dinput_device, DIPROP_RANGE, &property_range.diph);
if (FAILED(hr))
goto Error;
/* set the dead zone of axes */
hr = IDirectInputDevice8_SetProperty(dinput_device, DIPROP_DEADZONE, &property_deadzone.diph);
if (FAILED(hr))
goto Error;
/* set the buffer size */
hr = IDirectInputDevice8_SetProperty(dinput_device, DIPROP_BUFFERSIZE, &property_buffersize.diph);
if (FAILED(hr))
goto Error;
/* set up the joystick structure */
joy = joydx_allocate_structure(&num);
if (!joy) {
ALLEGRO_ERROR("Joystick array full\n");
goto Error;
}
joy->config_state = STATE_BORN;
joy->marked = true;
joy->device = dinput_device;
memcpy(&joy->guid, &lpddi->guidInstance, sizeof(GUID));
_al_sane_strncpy(joy->name, lpddi->tszInstanceName, sizeof(joy->name));
/* fill in the joystick structure */
fill_joystick_info_using_caps_and_names(joy, &caps_and_names);
/* create a thread event for this joystick, unless it was already created */
joy->waker_event = CreateEvent(NULL, false, false, NULL);
/* tell the joystick background thread to wake up when this joystick
* device's state changes
*/
hr = IDirectInputDevice8_SetEventNotification(joy->device, joy->waker_event);
if (FAILED(hr)) {
ALLEGRO_ERROR("SetEventNotification failed for joystick %d: %s\n",
num, dinput_err_str(hr));
goto Error;
}
if (hr == DI_POLLEDDEVICE) {
/* This joystick device must be polled -- replace the Event with
* a Waitable Timer object.
*
* Theoretically all polled devices could share a single
* waitable timer object. But, really, how many such devices
* are there going to be on a system?
*/
CloseHandle(joy->waker_event);
joy->waker_event = CreateWaitableTimer(NULL, false, NULL);
if (joy->waker_event == NULL) {
ALLEGRO_ERROR("CreateWaitableTimer failed for polled device.\n");
goto Error;
}
{
LARGE_INTEGER due_time;
due_time.HighPart = 0;
due_time.LowPart = 150; /* 15 ms (arbitrary) */
SetWaitableTimer(joy->waker_event,
&due_time, true, /* periodic */
NULL, NULL, false);
}
}
ALLEGRO_INFO("Joystick %d initialized, GUID: %s\n",
num, joydx_guid_string(joy));
config_needs_merging = true;
return DIENUM_CONTINUE;
Error:
if (dinput_device)
IDirectInputDevice8_Release(dinput_device);
if (joy) {
joy->device = NULL;
joydx_inactivate_joy(joy);
}
return DIENUM_CONTINUE;
}
int
SDL_DINPUT_JoystickOpen(SDL_Joystick * joystick, JoyStick_DeviceData *joystickdevice)
{
HRESULT result;
LPDIRECTINPUTDEVICE8 device;
DIPROPDWORD dipdw;
joystick->hwdata->buffered = SDL_TRUE;
joystick->hwdata->Capabilities.dwSize = sizeof(DIDEVCAPS);
SDL_zero(dipdw);
dipdw.diph.dwSize = sizeof(DIPROPDWORD);
dipdw.diph.dwHeaderSize = sizeof(DIPROPHEADER);
result =
IDirectInput8_CreateDevice(dinput,
&(joystickdevice->dxdevice.guidInstance), &device, NULL);
if (FAILED(result)) {
return SetDIerror("IDirectInput::CreateDevice", result);
}
/* Now get the IDirectInputDevice8 interface, instead. */
result = IDirectInputDevice8_QueryInterface(device,
&IID_IDirectInputDevice8,
(LPVOID *)& joystick->
hwdata->InputDevice);
/* We are done with this object. Use the stored one from now on. */
IDirectInputDevice8_Release(device);
if (FAILED(result)) {
return SetDIerror("IDirectInputDevice8::QueryInterface", result);
}
/* Acquire shared access. Exclusive access is required for forces,
* though. */
result =
IDirectInputDevice8_SetCooperativeLevel(joystick->hwdata->
InputDevice, SDL_HelperWindow,
DISCL_EXCLUSIVE |
DISCL_BACKGROUND);
if (FAILED(result)) {
return SetDIerror("IDirectInputDevice8::SetCooperativeLevel", result);
}
/* Use the extended data structure: DIJOYSTATE2. */
result =
IDirectInputDevice8_SetDataFormat(joystick->hwdata->InputDevice,
&SDL_c_dfDIJoystick2);
if (FAILED(result)) {
return SetDIerror("IDirectInputDevice8::SetDataFormat", result);
}
/* Get device capabilities */
result =
IDirectInputDevice8_GetCapabilities(joystick->hwdata->InputDevice,
&joystick->hwdata->Capabilities);
if (FAILED(result)) {
return SetDIerror("IDirectInputDevice8::GetCapabilities", result);
}
/* Force capable? */
if (joystick->hwdata->Capabilities.dwFlags & DIDC_FORCEFEEDBACK) {
result = IDirectInputDevice8_Acquire(joystick->hwdata->InputDevice);
if (FAILED(result)) {
return SetDIerror("IDirectInputDevice8::Acquire", result);
}
/* reset all actuators. */
result =
IDirectInputDevice8_SendForceFeedbackCommand(joystick->hwdata->
InputDevice,
DISFFC_RESET);
/* Not necessarily supported, ignore if not supported.
if (FAILED(result)) {
return SetDIerror("IDirectInputDevice8::SendForceFeedbackCommand", result);
}
*/
result = IDirectInputDevice8_Unacquire(joystick->hwdata->InputDevice);
if (FAILED(result)) {
return SetDIerror("IDirectInputDevice8::Unacquire", result);
}
/* Turn on auto-centering for a ForceFeedback device (until told
* otherwise). */
dipdw.diph.dwObj = 0;
dipdw.diph.dwHow = DIPH_DEVICE;
dipdw.dwData = DIPROPAUTOCENTER_ON;
result =
IDirectInputDevice8_SetProperty(joystick->hwdata->InputDevice,
DIPROP_AUTOCENTER, &dipdw.diph);
/* Not necessarily supported, ignore if not supported.
if (FAILED(result)) {
return SetDIerror("IDirectInputDevice8::SetProperty", result);
}
*/
}
/* What buttons and axes does it have? */
IDirectInputDevice8_EnumObjects(joystick->hwdata->InputDevice,
EnumDevObjectsCallback, joystick,
DIDFT_BUTTON | DIDFT_AXIS | DIDFT_POV);
/* Reorder the input objects. Some devices do not report the X axis as
* the first axis, for example. */
SortDevObjects(joystick);
dipdw.diph.dwObj = 0;
dipdw.diph.dwHow = DIPH_DEVICE;
dipdw.dwData = INPUT_QSIZE;
/* Set the buffer size */
result =
IDirectInputDevice8_SetProperty(joystick->hwdata->InputDevice,
DIPROP_BUFFERSIZE, &dipdw.diph);
if (result == DI_POLLEDDEVICE) {
/* This device doesn't support buffering, so we're forced
* to use less reliable polling. */
joystick->hwdata->buffered = SDL_FALSE;
} else if (FAILED(result)) {
return SetDIerror("IDirectInputDevice8::SetProperty", result);
}
return 0;
}
