static int
getValuatorEvents(DeviceEvent *ev, deviceValuator * xv)
{
int i;
int state = 0;
int first_valuator, num_valuators;
num_valuators = countValuators(ev, &first_valuator);
if (num_valuators > 0) {
DeviceIntPtr dev = NULL;
dixLookupDevice(&dev, ev->deviceid, serverClient, DixUseAccess);
/* State needs to be assembled BEFORE the device is updated. */
state = (dev &&
dev->key) ? XkbStateFieldFromRec(&dev->key->xkbInfo->
state) : 0;
state |= (dev && dev->button) ? (dev->button->state) : 0;
}
for (i = 0; i < num_valuators; i += 6, xv++) {
INT32 *valuators = &xv->valuator0; // Treat all 6 vals as an array
int j;
xv->type = DeviceValuator;
xv->first_valuator = first_valuator + i;
xv->num_valuators = ((num_valuators - i) > 6) ? 6 : (num_valuators - i);
xv->deviceid = ev->deviceid;
xv->device_state = state;
/* Unset valuators in masked valuator events have the proper data values
* in the case of an absolute axis in between two set valuators. */
for (j = 0; j < xv->num_valuators; j++)
valuators[j] = ev->valuators.data[xv->first_valuator + j];
if (i + 6 < num_valuators)
xv->deviceid |= MORE_EVENTS;
}
return (num_valuators + 5) / 6;
}
static int
eventToKeyButtonPointer(DeviceEvent *ev, xEvent **xi, int *count)
{
int num_events;
int first; /* dummy */
deviceKeyButtonPointer *kbp;
/* Sorry, XI 1.x protocol restrictions. */
if (ev->detail.button > 0xFF || ev->deviceid >= 0x80)
{
*count = 0;
return Success;
}
num_events = (countValuators(ev, &first) + 5)/6; /* valuator ev */
if (num_events <= 0)
{
switch (ev->type)
{
case ET_KeyPress:
case ET_KeyRelease:
case ET_ButtonPress:
case ET_ButtonRelease:
/* no axes is ok */
break;
case ET_Motion:
case ET_ProximityIn:
case ET_ProximityOut:
*count = 0;
return BadMatch;
default:
*count = 0;
return BadImplementation;
}
}
num_events++; /* the actual event event */
*xi = calloc(num_events, sizeof(xEvent));
if (!(*xi))
{
return BadAlloc;
}
kbp = (deviceKeyButtonPointer*)(*xi);
kbp->detail = ev->detail.button;
kbp->time = ev->time;
kbp->root = ev->root;
kbp->root_x = ev->root_x;
kbp->root_y = ev->root_y;
kbp->deviceid = ev->deviceid;
kbp->state = ev->corestate;
EventSetKeyRepeatFlag((xEvent*)kbp,
(ev->type == ET_KeyPress && ev->key_repeat));
if (num_events > 1)
kbp->deviceid |= MORE_EVENTS;
switch(ev->type)
{
case ET_Motion: kbp->type = DeviceMotionNotify; break;
case ET_ButtonPress: kbp->type = DeviceButtonPress; break;
case ET_ButtonRelease: kbp->type = DeviceButtonRelease; break;
case ET_KeyPress: kbp->type = DeviceKeyPress; break;
case ET_KeyRelease: kbp->type = DeviceKeyRelease; break;
case ET_ProximityIn: kbp->type = ProximityIn; break;
case ET_ProximityOut: kbp->type = ProximityOut; break;
default:
break;
}
if (num_events > 1)
{
getValuatorEvents(ev, (deviceValuator*)(kbp + 1));
}
*count = num_events;
return Success;
}