/**
* @brief Initializes force feedback for the loaded device.
*/
static void joystick_initHaptic (void)
{
#if SDL_VERSION_ATLEAST(1,3,0)
if (has_haptic && SDL_JoystickIsHaptic(joystick)) {
/* Close haptic if already open. */
if (haptic != NULL) {
SDL_HapticClose(haptic);
haptic = NULL;
}
/* Try to create haptic device. */
haptic = SDL_HapticOpenFromJoystick(joystick);
if (haptic == NULL) {
WARN("Unable to initialize force feedback: %s", SDL_GetError());
return;
}
/* Check to see what it supports. */
haptic_query = SDL_HapticQuery(haptic);
if (!(haptic_query & SDL_HAPTIC_SINE)) {
SDL_HapticClose(haptic);
haptic = NULL;
return;
}
DEBUG(" force feedback enabled");
}
#endif /* SDL_VERSION_ATLEAST(1,3,0) */
}
void refresh_controllers()
{
for (s32 i = 0; i < MAX_GAMEPADS; i++)
{
if (haptics[i])
{
SDL_HapticClose(haptics[i]);
haptics[i] = nullptr;
}
if (controllers[i])
{
SDL_GameControllerClose(controllers[i]);
controllers[i] = nullptr;
}
}
for (s32 i = 0; i < SDL_NumJoysticks(); i++)
{
if (SDL_IsGameController(i))
{
controllers[i] = SDL_GameControllerOpen(i);
SDL_Joystick* joystick = SDL_GameControllerGetJoystick(controllers[i]);
if (SDL_JoystickIsHaptic(joystick))
{
haptics[i] = SDL_HapticOpenFromJoystick(joystick);
if (SDL_HapticRumbleInit(haptics[i])) // failed
{
SDL_HapticClose(haptics[i]);
haptics[i] = nullptr;
}
}
}
}
}
void JoyInitHaptic() {
#if 0
uint8_t i;
unsigned int haptic_query = 0;
for (i = 0; i < 2; i++) {
if (g.PadState[i].JoyDev && SDL_JoystickIsHaptic(g.PadState[i].JoyDev)) {
if (g.PadState[i].haptic != NULL) {
SDL_HapticClose(g.PadState[i].haptic);
g.PadState[i].haptic = NULL;
}
g.PadState[i].haptic = SDL_HapticOpenFromJoystick(g.PadState[i].JoyDev);
if (g.PadState[i].haptic == NULL)
continue;
if (SDL_HapticRumbleSupported(g.PadState[i].haptic) == SDL_FALSE) {
printf("\nRumble not supported\n");
g.PadState[i].haptic = NULL;
continue;
}
if (SDL_HapticRumbleInit(g.PadState[i].haptic) != 0) {
printf("\nFailed to initialize rumble: %s\n", SDL_GetError());
g.PadState[i].haptic = NULL;
continue;
}
}
}
#endif
}
bool JoystickInfo::Init(int id)
{
Destroy();
_id = id;
joy = SDL_JoystickOpen(id);
if (joy == NULL)
{
PAD_LOG("failed to open joystick %d\n", id);
return false;
}
numaxes = SDL_JoystickNumAxes(joy);
numbuttons = SDL_JoystickNumButtons(joy);
numhats = SDL_JoystickNumHats(joy);
#if SDL_MAJOR_VERSION >= 2
devname = SDL_JoystickName(joy);
#else
devname = SDL_JoystickName(id);
#endif
vaxisstate.resize(numaxes);
vbuttonstate.resize(numbuttons);
vhatstate.resize(numhats);
// Sixaxis, dualshock3 hack
// Most buttons are actually axes due to analog pressure support. Only the first 4 buttons
// are digital (select, start, l3, r3). To avoid conflict just forget the others.
// Keep the 4 hat buttons too (usb driver). (left pressure does not work with recent kernel). Moreover the pressure
// work sometime on half axis neg others time in fulll axis. So better keep them as button for the moment
u32 found_hack = devname.find(string("PLAYSTATION(R)3"));
if (found_hack != string::npos && numaxes > 4) {
numbuttons = 4; // (select, start, l3, r3)
// Enable this hack in bluetooth too. It avoid to restart the onepad gui
numbuttons += 4; // the 4 hat buttons
}
#if SDL_MAJOR_VERSION >= 2
if ( haptic == NULL ) {
if (!SDL_JoystickIsHaptic(joy)) {
PAD_LOG("Haptic devices not supported!\n");
} else {
haptic = SDL_HapticOpenFromJoystick(joy);
// upload some default effect
InitHapticEffect();
}
}
#endif
//PAD_LOG("There are %d buttons, %d axises, and %d hats.\n", numbuttons, numaxes, numhats);
return true;
}
int _create_controler(int i) {
SDL_GameController *controller = SDL_GameControllerOpen(i);
SDL_Joystick *joy = SDL_GameControllerGetJoystick(controller);
int idx = _new_controler();
_G.controller[idx] = controller;
memory_set(_G.state[idx], 0, sizeof(int) * GAMEPAD_BTN_MAX);
if (SDL_JoystickIsHaptic(joy) == 1) {
SDL_Haptic *haptic = SDL_HapticOpenFromJoystick(joy);
SDL_HapticRumbleInit(haptic);
_G.haptic[idx] = haptic;
log_info("input.gamepad", "Gamepad %d has haptic support", i);
} else {
_G.haptic[idx] = NULL;
}
return idx;
}
bool SdlJoystick::init()
{
#if SDL_VERSION_ATLEAST(1,3,0)
SDL_Init(SDL_INIT_JOYSTICK | SDL_INIT_HAPTIC);
#else
SDL_Init(SDL_INIT_JOYSTICK);
#endif
if (mDeviceNumber >= SDL_NumJoysticks())
{
vprDEBUG(gadgetDBG_INPUT_MGR, vprDBG_CRITICAL_LVL)
<< clrOutBOLD(clrRED, "ERROR")
<< ": Added for joystick number " << mDeviceNumber
<< " but there are only " << SDL_NumJoysticks() << " joysticks.\n"
<< vprDEBUG_FLUSH;
return false;
}
mJoystick = SDL_JoystickOpen(mDeviceNumber);
if (!mJoystick)
{
vprDEBUG(gadgetDBG_INPUT_MGR, vprDBG_CRITICAL_LVL)
<< "ERROR: Failed to open joystick " << mDeviceNumber << ": "
<< SDL_GetError();
return false;
}
mButtons.resize(SDL_JoystickNumButtons(mJoystick), gadget::DigitalState::OFF);
mAxes.resize(SDL_JoystickNumAxes(mJoystick), 0.0f);
gadget::Digital::addDigitalSample(mButtons);
gadget::Analog::addAnalogSample(mAxes);
cout << "Found Joystick " << mDeviceNumber << ": " << SDL_JoystickName(mDeviceNumber) << endl
<< " Axis: " << mAxes.size() << endl
<< " Buttons: " << mButtons.size() << endl
<< " Hats: " << SDL_JoystickNumHats(mJoystick) << " (Unused)" << endl
<< " Balls: " << SDL_JoystickNumBalls(mJoystick) << " (Unused)" << endl
#if SDL_VERSION_ATLEAST(1,3,0)
<< " Haptics: " << (SDL_JoystickIsHaptic(mJoystick) ? "YES" : "NO")
#else
<< " Haptics: Not supported by SDL 1.2"
#endif
<< endl;
#if SDL_VERSION_ATLEAST(1,3,0)
if (SDL_JoystickIsHaptic(mJoystick))
{
mHaptic = SDL_HapticOpenFromJoystick(mJoystick);
if (!mHaptic)
{
vprDEBUG(gadgetDBG_INPUT_MGR, vprDBG_CRITICAL_LVL)
<< "ERROR: Failed to initialize haptics on " << mDeviceNumber << ": " << SDL_GetError();
return true;
}
unsigned int cap = getCapabilities();
cout << " Loaded Effects: " << getMaxStoredEffects() << endl
<< " Played Effects: " << getMaxPlayingEffects() << endl
<< " Axes Count: " << getNumAxes() << endl
<< " Support for:";
if (cap & RumbleEffect::CONSTANT) cout << " constant";
if (cap & RumbleEffect::SINE) cout << " sine";
if (cap & RumbleEffect::SQUARE) cout << " square";
if (cap & RumbleEffect::TRIANGLE) cout << " triangle";
if (cap & RumbleEffect::SAWTOOTHUP) cout << " saw-tooth-up";
if (cap & RumbleEffect::SAWTOOTHDOWN) cout << " saw-tooth-down";
if (cap & RumbleEffect::RAMP) cout << " ramp";
if (cap & RumbleEffect::SPRING) cout << " spring";
if (cap & RumbleEffect::DAMPER) cout << " damper";
if (cap & RumbleEffect::INERTIA) cout << " inertia";
if (cap & RumbleEffect::FRICTION) cout << " friction";
if (cap & RumbleEffect::CUSTOM) cout << " custom";
if (cap & RumbleEffect::GAIN) cout << " gain";
if (cap & RumbleEffect::AUTOCENTER) cout << " auto-center";
if (cap & RumbleEffect::STATUS) cout << " status";
if (cap & RumbleEffect::PAUSE) cout << " pause";
cout << endl;
}
#endif
mInitialized = true;
return true;
}
int
main(int argc, char *argv[])
{
SDL_Joystick *joystick = NULL;
SDL_Haptic *haptic = NULL;
SDL_JoystickID instance = -1;
SDL_bool keepGoing = SDL_TRUE;
int i;
SDL_bool enable_haptic = SDL_TRUE;
Uint32 init_subsystems = SDL_INIT_VIDEO | SDL_INIT_JOYSTICK;
for (i = 1; i < argc; ++i) {
if (SDL_strcasecmp(argv[i], "--nohaptic") == 0) {
enable_haptic = SDL_FALSE;
}
}
if(enable_haptic) {
init_subsystems |= SDL_INIT_HAPTIC;
}
/* Enable standard application logging */
SDL_LogSetPriority(SDL_LOG_CATEGORY_APPLICATION, SDL_LOG_PRIORITY_INFO);
SDL_SetHint(SDL_HINT_JOYSTICK_ALLOW_BACKGROUND_EVENTS, "1");
/* Initialize SDL (Note: video is required to start event loop) */
if (SDL_Init(init_subsystems) < 0) {
SDL_LogError(SDL_LOG_CATEGORY_APPLICATION, "Couldn't initialize SDL: %s\n", SDL_GetError());
exit(1);
}
//SDL_CreateWindow("Dummy", SDL_WINDOWPOS_CENTERED, SDL_WINDOWPOS_CENTERED, 128, 128, 0);
SDL_Log("There are %d joysticks at startup\n", SDL_NumJoysticks());
if (enable_haptic)
SDL_Log("There are %d haptic devices at startup\n", SDL_NumHaptics());
while(keepGoing)
{
SDL_Event event;
while(SDL_PollEvent(&event))
{
switch(event.type)
{
case SDL_QUIT:
keepGoing = SDL_FALSE;
break;
case SDL_JOYDEVICEADDED:
if (joystick != NULL)
{
SDL_Log("Only one joystick supported by this test\n");
}
else
{
joystick = SDL_JoystickOpen(event.jdevice.which);
instance = SDL_JoystickInstanceID(joystick);
SDL_Log("Joy Added : %d : %s\n", event.jdevice.which, SDL_JoystickName(joystick));
if (enable_haptic)
{
if (SDL_JoystickIsHaptic(joystick))
{
haptic = SDL_HapticOpenFromJoystick(joystick);
if (haptic)
{
SDL_Log("Joy Haptic Opened\n");
if (SDL_HapticRumbleInit( haptic ) != 0)
{
SDL_Log("Could not init Rumble!: %s\n", SDL_GetError());
SDL_HapticClose(haptic);
haptic = NULL;
}
} else {
SDL_Log("Joy haptic open FAILED!: %s\n", SDL_GetError());
}
}
else
{
SDL_Log("No haptic found\n");
}
}
}
break;
case SDL_JOYDEVICEREMOVED:
if (instance == event.jdevice.which)
{
SDL_Log("Joy Removed: %d\n", event.jdevice.which);
instance = -1;
if(enable_haptic && haptic)
{
SDL_HapticClose(haptic);
haptic = NULL;
}
SDL_JoystickClose(joystick);
joystick = NULL;
} else {
SDL_Log("Unknown joystick diconnected\n");
}
break;
case SDL_JOYAXISMOTION:
// SDL_Log("Axis Move: %d\n", event.jaxis.axis);
if (enable_haptic)
SDL_HapticRumblePlay(haptic, 0.25, 250);
break;
case SDL_JOYBUTTONDOWN:
SDL_Log("Button Press: %d\n", event.jbutton.button);
if(enable_haptic && haptic)
{
SDL_HapticRumblePlay(haptic, 0.25, 250);
}
if (event.jbutton.button == 0) {
SDL_Log("Exiting due to button press of button 0\n");
keepGoing = SDL_FALSE;
}
break;
case SDL_JOYBUTTONUP:
SDL_Log("Button Release: %d\n", event.jbutton.button);
break;
}
}
}
SDL_Quit();
return 0;
}
FDeviceInfoSDL FDeviceSDL::AddDevice(FDeviceIndex DeviceIndex)
{
FDeviceInfoSDL Device;
if (SDL_IsGameController(DeviceIndex.value) && bIgnoreGameControllers)
{
// Let UE handle it
return Device;
}
Device.DeviceIndex = DeviceIndex;
Device.Joystick = SDL_JoystickOpen(DeviceIndex.value);
if (Device.Joystick == nullptr)
{
return Device;
}
Device.InstanceId = FInstanceId(SDL_JoystickInstanceID(Device.Joystick));
// DEBUG
Device.Name = FString(ANSI_TO_TCHAR(SDL_JoystickName(Device.Joystick)));
UE_LOG(JoystickPluginLog, Log, TEXT("--- %s"), *Device.Name);
UE_LOG(JoystickPluginLog, Log, TEXT("--- Number of Axis %i"), SDL_JoystickNumAxes(Device.Joystick));
UE_LOG(JoystickPluginLog, Log, TEXT("--- Number of Balls %i"), SDL_JoystickNumBalls(Device.Joystick));
UE_LOG(JoystickPluginLog, Log, TEXT("--- Number of Buttons %i"), SDL_JoystickNumButtons(Device.Joystick));
UE_LOG(JoystickPluginLog, Log, TEXT("--- Number of Hats %i"), SDL_JoystickNumHats(Device.Joystick));
if (SDL_JoystickIsHaptic(Device.Joystick))
{
Device.Haptic = SDL_HapticOpenFromJoystick(Device.Joystick);
if (Device.Haptic != nullptr)
{
UE_LOG(JoystickPluginLog, Log, TEXT("--- Rumble device detected"));
if (SDL_HapticRumbleInit(Device.Haptic) != 0)
{
/*UE_LOG(JoystickPluginLog, Log, TEXT("--- testing Rumble device:"));
if (SDL_HapticRumblePlay(OutDeviceInfo.Haptic, 0.5, 2000) != 0)
{
UE_LOG(JoystickPluginLog, Log, TEXT("--- play Rumble ...."));
SDL_Delay(2000);
}
else
{
UE_LOG(JoystickPluginLog, Log, TEXT("--- not successful!"));
SDL_HapticClose(OutDeviceInfo.Haptic);
OutDeviceInfo.Haptic = nullptr;
}*/
}
}
}
for (auto &ExistingDevice : Devices)
{
if (ExistingDevice.Value.Joystick == nullptr && ExistingDevice.Value.Name == Device.Name)
{
Device.DeviceId = ExistingDevice.Key;
Devices[Device.DeviceId] = Device;
DeviceMapping.Add(Device.InstanceId, Device.DeviceId);
EventInterface->JoystickPluggedIn(Device);
return Device;
}
}
Device.DeviceId = FDeviceId(Devices.Num());
Devices.Add(Device.DeviceId, Device);
DeviceMapping.Add(Device.InstanceId, Device.DeviceId);
EventInterface->JoystickPluggedIn(Device);
return Device;
}