/* Function to update the state of a joystick - called as a device poll.
* This function shouldn't update the joystick structure directly,
* but instead should call SDL_PrivateJoystick*() to deliver events
* and update joystick device state.
*/
static __inline__ void JS_HandleEvents(SDL_Joystick *joystick)
{
struct js_event events[32];
int i, len;
Uint8 other_axis;
#ifndef NO_LOGICAL_JOYSTICKS
if (SDL_joylist[joystick->index].fname == NULL) {
SDL_joylist_head(i, joystick->index);
JS_HandleEvents(SDL_joylist[i].joy);
return;
}
#endif
while ((len=read(joystick->hwdata->fd, events, (sizeof events))) > 0) {
len /= sizeof(events[0]);
for ( i=0; i<len; ++i ) {
switch (events[i].type & ~JS_EVENT_INIT) {
case JS_EVENT_AXIS:
if ( events[i].number < joystick->naxes ) {
#ifndef NO_LOGICAL_JOYSTICKS
if (!LogicalJoystickAxis(joystick,
events[i].number, events[i].value))
#endif
SDL_PrivateJoystickAxis(joystick,
events[i].number, events[i].value);
break;
}
events[i].number -= joystick->naxes;
other_axis = (events[i].number / 2);
if ( other_axis < joystick->nhats ) {
HandleHat(joystick, other_axis,
events[i].number%2,
events[i].value);
break;
}
events[i].number -= joystick->nhats*2;
other_axis = (events[i].number / 2);
if ( other_axis < joystick->nballs ) {
HandleBall(joystick, other_axis,
events[i].number%2,
events[i].value);
break;
}
break;
case JS_EVENT_BUTTON:
#ifndef NO_LOGICAL_JOYSTICKS
if (!LogicalJoystickButton(joystick,
events[i].number, events[i].value))
#endif
SDL_PrivateJoystickButton(joystick,
events[i].number, events[i].value);
break;
default:
/* ?? */
break;
}
}
}
}
static __inline__ void EV_HandleEvents(SDL_Joystick *joystick)
{
struct input_event events[32];
int i, len;
int code;
#ifndef NO_LOGICAL_JOYSTICKS
if (SDL_joylist[joystick->index].fname == NULL) {
SDL_joylist_head(i, joystick->index);
return EV_HandleEvents(SDL_joylist[i].joy);
}
#endif
while ((len=read(joystick->hwdata->fd, events, (sizeof events))) > 0) {
len /= sizeof(events[0]);
for ( i=0; i<len; ++i ) {
code = events[i].code;
switch (events[i].type) {
case EV_KEY:
if ( code >= BTN_MISC ) {
code -= BTN_MISC;
#ifndef NO_LOGICAL_JOYSTICKS
if (!LogicalJoystickButton(joystick,
joystick->hwdata->key_map[code],
events[i].value))
#endif
SDL_PrivateJoystickButton(joystick,
joystick->hwdata->key_map[code],
events[i].value);
}
break;
case EV_ABS:
switch (code) {
case ABS_HAT0X:
case ABS_HAT0Y:
case ABS_HAT1X:
case ABS_HAT1Y:
case ABS_HAT2X:
case ABS_HAT2Y:
case ABS_HAT3X:
case ABS_HAT3Y:
code -= ABS_HAT0X;
HandleHat(joystick, code/2, code%2,
events[i].value);
break;
default:
events[i].value = EV_AxisCorrect(joystick, code, events[i].value);
#ifndef NO_LOGICAL_JOYSTICKS
if (!LogicalJoystickAxis(joystick,
joystick->hwdata->abs_map[code],
events[i].value))
#endif
SDL_PrivateJoystickAxis(joystick,
joystick->hwdata->abs_map[code],
events[i].value);
break;
}
break;
case EV_REL:
switch (code) {
case REL_X:
case REL_Y:
code -= REL_X;
HandleBall(joystick, code/2, code%2,
events[i].value);
break;
default:
break;
}
break;
default:
break;
}
}
}
}