Slight correction for handling the null backend's timer wrapping

1 files changed, 3 insertions, 3 deletions

diff --git a/Alc/backends/null.c b/Alc/backends/null.c
index 8e581f15..10068630 100644
--- a/Alc/backends/null.c
+++ b/Alc/backends/null.c
@@ -52,9 +52,9 @@ static ALuint NullProc(ALvoid *ptr)
         avail = (ALuint64)(now-start) * Device->Frequency / 1000;
         if(avail < done)
         {
-            /* Timer wrapped. Add the remainder of the cycle to the available
-             * count and reset the number of samples done */
-            avail += (ALuint64)0xFFFFFFFFu*Device->Frequency/1000 - done;
+            /* Timer wrapped (50 days???). Add the remainder of the cycle to
+             * the available count and reset the number of samples done */
+            avail += ((ALuint64)1<<32)*Device->Frequency/1000 - done;
             done = 0;
         }
         if(avail-done < Device->UpdateSize)