[Bug 28723] Sound stutter in Rage when emulated windows version is set to "Windows 7" (XAudio2 -> mmdevapi sound output path)

[wine-bugs at winehq.org]

http://bugs.winehq.org/show_bug.cgi?id=28723

--- Comment #131 from Raymond <superquad.vortex2 at gmail.com> 2012-02-10 21:32:27 CST ---
(In reply to comment #130)
> Created attachment 38788 [details]
> Patch to increase TimerQueue rate
> 
> This patch changes the TimerQueue rate from 12 to 8ms on my system.  It fixes
> crackling output from my interactive mmdevapi render tests, as mentioned in
> comment #128.  You guys watching bug #28856 and bug #28282, please try it out.
> 
> CreateTimerQueueTimer vs. winmm timeSetEvent.
> The difference is, winmm:time* uses:
>     delta_time = timer->dwTriggerTime - GetTickCount();
> thereby readjusting to elapsed time.  CTQT doesn't:
>     queue_current_time() + t->period
> deviating more and more.  We need tests to check whether that is correct CTQ
> behaviour.

Do you have a customized  alsa default device ?

and how does your perform the test ?

The behaviour of dmix is quit different when there is another application
already aplaying.

I have performed a test, it seem that the start_threshold has no effect if you
are using dmix plugin, it start immmediately

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