void updateCapabilities(int joystick)
{
if (joystick<0 || MAXJOYSTICKS<=joystick) {
return;
}
capabilities[joystick].povs=0;
capabilities[joystick].axes=0;
capabilities[joystick].buttons=0;
capabilities[joystick].version=0;
strcpy(capabilities[joystick].name, "Unknown");
if (fd[joystick]<0 && openJoystick(joystick)<0)
return;
ioctl(fd[joystick], JSIOCGAXES, &capabilities[joystick].axes);
ioctl(fd[joystick], JSIOCGBUTTONS, &capabilities[joystick].buttons);
ioctl(fd[joystick], JSIOCGVERSION, &capabilities[joystick].version);
int nameLen = ioctl(fd[joystick], JSIOCGNAME(JOYSTICK_NAME_SIZE), capabilities[joystick].name);
if (nameLen > 0) {
// NULL terminate just in case.
capabilities[joystick].name[JOYSTICK_NAME_SIZE - 1] = 0;
}
else {
strcpy(capabilities[joystick].name, "Unknown");
}
}
int calcNumDevices() {
if (numDevices>=0)
return numDevices;
initAll();
unsigned int i=0;
for (; i<MAXJOYSTICKS; i++) {
int fd=openJoystick(i);
if (fd<0)
break;
closeJoystick(i);
}
return numDevices=i;
}
void updateInfo(int joystick) {
if (joystick<0 || joystick>=MAXJOYSTICKS)
return;
if (fd[joystick]<0 && openJoystick(joystick)<0)
return;
assert(fd[joystick]>=0);
JoystickEvent ev;
ev.type=0;
fd_set rfds;
int retval;
FD_ZERO(&rfds);
FD_SET(fd[joystick], &rfds);
struct timeval interval;
for (;;) {
interval.tv_sec = 0;
interval.tv_usec = 1;
retval = select(fd[joystick]+1, &rfds, NULL, NULL, &interval);
if (retval!=1)
break;
TEMP_FAILURE_RETRY(read (fd[joystick], &ev, sizeof(struct js_event)));
// process event
if ((ev.type & ~JS_EVENT_INIT) == JS_EVENT_BUTTON) {
if (ev.value) {
info[joystick].buttons |= (1 << ev.number);
}
else {
info[joystick].buttons &= ~(1 << ev.number);
}
}
// info[joystick].buttons|=8;
if ((ev.type & ~JS_EVENT_INIT) == JS_EVENT_AXIS) {
float val=ev.value/32767.0f;
if (ev.number<MAXAXES)
info[joystick].axis[ev.number]=val;
}
}
}
void InputManager::loadConfig()
{
LOG(LogDebug) << "Loading input config...";
//clear any old config
joystickButtonMap.clear();
joystickAxisPosMap.clear();
joystickAxisNegMap.clear();
std::string path = getConfigPath();
std::ifstream file(path.c_str());
joystickName = "";
while(file.good())
{
std::string line;
std::getline(file, line);
//skip blank lines and comments
if(line.empty() || line[0] == *"#")
continue;
//I know I could probably just read from the file stream directly, but I feel it would be harder to catch errors in a readable way
std::istringstream stream(line);
std::string token[3];
int tokNum = 0;
while(std::getline(stream, token[tokNum], ' '))
{
tokNum++;
//JOYNAME can have spaces
if(tokNum == 1 && token[0] == "JOYNAME")
{
std::getline(stream, token[1]);
break;
}
if(tokNum >= 3)
break;
}
if(token[0] == "BUTTON")
{
joystickButtonMap[atoi(token[1].c_str())] = (InputButton)atoi(token[2].c_str());
}else if(token[0] == "AXISPOS")
{
joystickAxisPosMap[atoi(token[1].c_str())] = (InputButton)atoi(token[2].c_str());
}else if(token[0] == "AXISNEG")
{
joystickAxisNegMap[atoi(token[1].c_str())] = (InputButton)atoi(token[2].c_str());
}else if(token[0] == "JOYNAME")
{
joystickName = token[1];
}else{
LOG(LogWarning) << "Invalid input type - " << token[0];
return;
}
}
LOG(LogDebug) << "Finished loading input config";
openJoystick();
}
