/* Function to scan the system for joysticks.
* This function should set SDL_numjoysticks to the number of available
* joysticks. Joystick 0 should be the system default joystick.
* It should return 0, or -1 on an unrecoverable fatal error.
*/
int
SDL_SYS_JoystickInit(void)
{
HRESULT result;
HINSTANCE instance;
SYS_NumJoysticks = 0;
result = WIN_CoInitialize();
if (FAILED(result)) {
SetDIerror("CoInitialize", result);
return (-1);
}
coinitialized = SDL_TRUE;
result = CoCreateInstance(&CLSID_DirectInput, NULL, CLSCTX_INPROC_SERVER,
&IID_IDirectInput, (LPVOID)&dinput);
if (FAILED(result)) {
SDL_SYS_JoystickQuit();
SetDIerror("CoCreateInstance", result);
return (-1);
}
/* Because we used CoCreateInstance, we need to Initialize it, first. */
instance = GetModuleHandle(NULL);
if (instance == NULL) {
SDL_SYS_JoystickQuit();
SDL_SetError("GetModuleHandle() failed with error code %d.",
GetLastError());
return (-1);
}
result = IDirectInput_Initialize(dinput, instance, DIRECTINPUT_VERSION);
if (FAILED(result)) {
SDL_SYS_JoystickQuit();
SetDIerror("IDirectInput::Initialize", result);
return (-1);
}
/* Look for joysticks, wheels, head trackers, gamepads, etc.. */
result = IDirectInput_EnumDevices(dinput,
DIDEVTYPE_JOYSTICK,
EnumJoysticksCallback,
NULL, DIEDFL_ATTACHEDONLY);
return SYS_NumJoysticks;
}
void
SDL_JoystickQuit(void)
{
/* Make sure we're not getting called in the middle of updating joysticks */
SDL_assert(!SDL_updating_joystick);
SDL_LockJoystickList();
/* Stop the event polling */
while (SDL_joysticks) {
SDL_joysticks->ref_count = 1;
SDL_JoystickClose(SDL_joysticks);
}
/* Quit the joystick setup */
SDL_SYS_JoystickQuit();
SDL_UnlockJoystickList();
#if !SDL_EVENTS_DISABLED
SDL_QuitSubSystem(SDL_INIT_EVENTS);
#endif
if (SDL_joystick_lock) {
SDL_DestroyMutex(SDL_joystick_lock);
SDL_joystick_lock = NULL;
}
}
void SDL_JoystickQuit(void)
{
const int numsticks = SDL_numjoysticks;
int i;
SDL_Lock_EventThread();
SDL_numjoysticks = 0;
SDL_Unlock_EventThread();
if (SDL_joysticks != NULL) {
for (i = 0; i < numsticks; i++) {
SDL_Joystick *stick = SDL_joysticks[i];
if (stick && (stick->ref_count >= 1)) {
stick->ref_count = 1;
SDL_JoystickClose(stick);
}
}
}
SDL_SYS_JoystickQuit();
if ( SDL_joysticks ) {
SDL_free(SDL_joysticks);
SDL_joysticks = NULL;
SDL_allocatedjoysticks = 0;
}
}
void
SDL_JoystickQuit(void)
{
/* Make sure we're not getting called in the middle of updating joysticks */
SDL_assert(!SDL_updating_joystick);
SDL_LockJoysticks();
/* Stop the event polling */
while (SDL_joysticks) {
SDL_joysticks->ref_count = 1;
SDL_JoystickClose(SDL_joysticks);
}
/* Quit the joystick setup */
SDL_SYS_JoystickQuit();
SDL_UnlockJoysticks();
#if !SDL_EVENTS_DISABLED
SDL_QuitSubSystem(SDL_INIT_EVENTS);
#endif
SDL_DelHintCallback(SDL_HINT_JOYSTICK_ALLOW_BACKGROUND_EVENTS,
SDL_JoystickAllowBackgroundEventsChanged, NULL);
if (SDL_joystick_lock) {
SDL_DestroyMutex(SDL_joystick_lock);
SDL_joystick_lock = NULL;
}
SDL_GameControllerQuitMappings();
}
/* Function to scan the system for joysticks.
* It should return 0, or -1 on an unrecoverable fatal error.
*/
int
SDL_SYS_JoystickInit(void)
{
int retval, i, numjs;
EmscriptenGamepadEvent gamepadState;
numjoysticks = 0;
numjs = emscripten_get_num_gamepads();
/* Check if gamepad is supported by browser */
if (numjs == EMSCRIPTEN_RESULT_NOT_SUPPORTED) {
return SDL_SetError("Gamepads not supported");
}
/* handle already connected gamepads */
if (numjs > 0) {
for(i = 0; i < numjs; i++) {
retval = emscripten_get_gamepad_status(i, &gamepadState);
if (retval == EMSCRIPTEN_RESULT_SUCCESS) {
Emscripten_JoyStickConnected(EMSCRIPTEN_EVENT_GAMEPADCONNECTED,
&gamepadState,
NULL);
}
}
}
retval = emscripten_set_gamepadconnected_callback(NULL,
0,
Emscripten_JoyStickConnected);
if(retval != EMSCRIPTEN_RESULT_SUCCESS) {
SDL_SYS_JoystickQuit();
return SDL_SetError("Could not set gamepad connect callback");
}
retval = emscripten_set_gamepaddisconnected_callback(NULL,
0,
Emscripten_JoyStickDisconnected);
if(retval != EMSCRIPTEN_RESULT_SUCCESS) {
SDL_SYS_JoystickQuit();
return SDL_SetError("Could not set gamepad disconnect callback");
}
return 0;
}
void
SDL_JoystickQuit(void)
{
/* Stop the event polling */
SDL_numjoysticks = 0;
/* Quit the joystick setup */
SDL_SYS_JoystickQuit();
if (SDL_joysticks) {
SDL_free(SDL_joysticks);
SDL_joysticks = NULL;
}
}
void SDL_JoystickQuit(void)
{
/* Stop the event polling */
SDL_Lock_EventThread();
SDL_numjoysticks = 0;
SDL_Unlock_EventThread();
/* Quit the joystick setup */
SDL_SYS_JoystickQuit();
if ( SDL_joysticks ) {
free(SDL_joysticks);
SDL_joysticks = NULL;
}
}
void
SDL_JoystickQuit(void)
{
const int numsticks = SDL_numjoysticks;
int i;
/* Stop the event polling */
SDL_numjoysticks = 0;
for (i = numsticks; i--; ) {
SDL_Joystick *stick = SDL_joysticks[i];
if (stick && (stick->ref_count >= 1)) {
stick->ref_count = 1;
SDL_JoystickClose(stick);
}
}
/* Quit the joystick setup */
SDL_SYS_JoystickQuit();
if (SDL_joysticks) {
SDL_free(SDL_joysticks);
SDL_joysticks = NULL;
}
}