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--- xorg-server-1.9.1/Xext/sync.c 2010-11-16 23:11:56.751124639 -0500
+++ xorg-server-1.9.1/Xext/sync.c 2010-11-16 23:13:16.327862535 -0500
@@ -2264,8 +2264,44 @@
static void
IdleTimeQueryValue (pointer pCounter, CARD64 *pValue_return)
{
- CARD32 idle = GetTimeInMillis() - lastDeviceEventTime.milliseconds;
+ static CARD32 previousLastDeviceEventTimeMilliseconds = 0;
+ CARD32 now = GetTimeInMillis();
+ CARD32 idle = now - lastDeviceEventTime.milliseconds;
+ CARD32 previousIdle = now - previousLastDeviceEventTimeMilliseconds;
+ SyncCounter *pIdleTimeCounter = (SyncCounter*)pCounter;
+
XSyncIntsToValue (pValue_return, idle, 0);
+
+ if (pCounter == NULL)
+ {
+ return;
+ }
+ if (previousLastDeviceEventTimeMilliseconds == 0)
+ {
+ /* initialize static var when this function is invoked the first time. */
+ previousLastDeviceEventTimeMilliseconds = lastDeviceEventTime.milliseconds;
+ return;
+ }
+
+ if (previousLastDeviceEventTimeMilliseconds == lastDeviceEventTime.milliseconds)
+ {
+ /* no new user event, no need to change idle counter. */
+ return;
+ }
+ previousLastDeviceEventTimeMilliseconds = lastDeviceEventTime.milliseconds;
+
+ /*
+ * Some user event occured; now update idle counter with previous
+ * event time, so idle counter has the most up-to-date value with
+ * respect to previous user event (we need old and new counter
+ * value to compute if a transition occured). Recompute bracket
+ * values if this is system counter.
+ */
+
+ XSyncIntsToValue (&pIdleTimeCounter->value, previousIdle, 0);
+ if (IsSystemCounter(pIdleTimeCounter)) {
+ SyncComputeBracketValues(pIdleTimeCounter);
+ }
}
static void
@@ -2342,7 +2378,7 @@
if (!pIdleTimeValueLess && !pIdleTimeValueGreater)
return;
- IdleTimeQueryValue (NULL, &idle);
+ IdleTimeQueryValue (IdleTimeCounter, &idle);
if ((pIdleTimeValueGreater &&
XSyncValueGreaterOrEqual (idle, *pIdleTimeValueGreater)) ||
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