461 DoGetDirection(int dx, int dy)  in DoGetDirection()  argument
466     if (abs(dx) < 2 && abs(dy) < 2) {  in DoGetDirection()
468         if (dx > 0 && dy > 0)  in DoGetDirection()
470         else if (dx > 0 && dy < 0)  in DoGetDirection()
472         else if (dx < 0 && dy < 0)  in DoGetDirection()
474         else if (dx < 0 && dy > 0)  in DoGetDirection()
477         else if (dx > 0)  in DoGetDirection()
479         else if (dx < 0)  in DoGetDirection()
492         r = atan2(dy, dx);  in DoGetDirection()
528 GetDirection(int dx, int dy)  in GetDirection()  argument
533     if (abs(dx) <= DIRECTION_CACHE_RANGE && abs(dy) <= DIRECTION_CACHE_RANGE) {  in GetDirection()
535         dir = cache[DIRECTION_CACHE_RANGE + dx][DIRECTION_CACHE_RANGE + dy];  in GetDirection()
537             dir = DoGetDirection(dx, dy);  in GetDirection()
538             cache[DIRECTION_CACHE_RANGE + dx][DIRECTION_CACHE_RANGE + dy] = dir;  in GetDirection()
543         dir = DoGetDirection(dx, dy);  in GetDirection()
561 FeedTrackers(DeviceVelocityPtr vel, double dx, double dy, int cur_t)  in FeedTrackers()  argument
566         vel->tracker[n].dx += dx;  in FeedTrackers()
570     vel->tracker[n].dx = 0.0;  in FeedTrackers()
573     vel->tracker[n].dir = GetDirection(dx, dy);  in FeedTrackers()
575                 dx, dy, vel->tracker[n].dir,  in FeedTrackers()
588     double dist = sqrt(tracker->dx * tracker->dx + tracker->dy * tracker->dy);  in CalcTracker()
677                     used_offset, tracker->dx, tracker->dy,  in QueryTrackers()
692 ProcessVelocityData2D(DeviceVelocityPtr vel, double dx, double dy, int time)  in ProcessVelocityData2D()  argument
698     FeedTrackers(vel, dx, dy, time);  in ProcessVelocityData2D()
1086     double dx = 0, dy = 0;  in acceleratePointerPredictable()  local
1099         dx = valuator_mask_get_double(val, 0);  in acceleratePointerPredictable()
1106     if (dx != 0.0 || dy != 0.0) {  in acceleratePointerPredictable()
1108         if (ProcessVelocityData2D(velocitydata, dx, dy, evtime)) {  in acceleratePointerPredictable()
1124                     ApplySoftening(velocitydata, &dx, &dy);  in acceleratePointerPredictable()
1125                 ApplyConstantDeceleration(velocitydata, &dx, &dy);  in acceleratePointerPredictable()
1127                 if (dx != 0.0)  in acceleratePointerPredictable()
1128                     valuator_mask_set_double(val, 0, mult * dx);  in acceleratePointerPredictable()
1131                 DebugAccelF("delta x:%.3f y:%.3f\n", mult * dx, mult * dy);  in acceleratePointerPredictable()
1136     velocitydata->last_dx = dx;  in acceleratePointerPredictable()
1149     double dx = 0.0, dy = 0.0;  in acceleratePointerLightweight()  local
1152         dx = valuator_mask_get(val, 0);  in acceleratePointerLightweight()
1165             if ((fabs(dx) + fabs(dy)) >= dev->ptrfeed->ctrl.threshold) {  in acceleratePointerLightweight()
1166                 if (dx != 0.0) {  in acceleratePointerLightweight()
1167                     tmpf = (dx * (double) (dev->ptrfeed->ctrl.num)) /  in acceleratePointerLightweight()
1180             mult = pow(dx * dx + dy * dy,  in acceleratePointerLightweight()
1183             if (dx != 0.0)  in acceleratePointerLightweight()
1184                 valuator_mask_set_double(val, 0, mult * dx);  in acceleratePointerLightweight()