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authorPeter Hutterer <peter.hutterer@who-t.net>2011-04-21 14:55:22 +1000
committerPeter Hutterer <peter.hutterer@who-t.net>2011-04-21 16:05:16 +1000
commit6f97fe5df16f947e52875187ff4f9e25fab33ad7 (patch)
tree48aaca5bcc292f5f4270898dbcbe76dcc71ab159 /dix/ptrveloc.c
parenta0eda8cd36ffba2ecc79e0d7a1908c89b45e76c4 (diff)
dix: improve control flow in QueryTrackers
If the velocity is 0, skip the remainder. If we're not in range, skip the remainder. No functional change. Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net> Reviewed-by: Jamey Sharp <jamey@minilop.net>
Diffstat (limited to 'dix/ptrveloc.c')
-rw-r--r--dix/ptrveloc.c16
1 files changed, 8 insertions, 8 deletions
diff --git a/dix/ptrveloc.c b/dix/ptrveloc.c
index f4548b6e9..dfccf1581 100644
--- a/dix/ptrveloc.c
+++ b/dix/ptrveloc.c
@@ -634,20 +634,20 @@ QueryTrackers(DeviceVelocityPtr vel, int cur_t){
used_offset = offset;
} else if (initial_velocity != 0 && tracker_velocity != 0) {
velocity_diff = fabs(initial_velocity - tracker_velocity);
- if (velocity_diff <= vel->max_diff ||
- velocity_diff/(initial_velocity + tracker_velocity) < vel->max_rel_diff) {
- /* we're in range with the initial velocity,
- * so this result is likely better
- * (it contains more information). */
- result = tracker_velocity;
- used_offset = offset;
- }else{
+
+ if (velocity_diff > vel->max_diff &&
+ velocity_diff/(initial_velocity + tracker_velocity) >= vel->max_rel_diff) {
/* we're not in range, quit - it won't get better. */
DebugAccelF("(dix prtacc) query: tracker too different:"
" old %2.2f initial %2.2f diff: %2.2f\n",
tracker_velocity, initial_velocity, velocity_diff);
break;
}
+ /* we're in range with the initial velocity,
+ * so this result is likely better
+ * (it contains more information). */
+ result = tracker_velocity;
+ used_offset = offset;
}
}
if(offset == vel->num_tracker){