[Bug 28517] Pikachu Volleyball stops playing sound effects

http://bugs.winehq.org/show_bug.cgi?id=28517

Raymond  changed:

What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |[e-mail]

--- Comment #2 from Raymond  2011-09-30 02:54:34 CDT ---
(In reply to comment #1)
> This seems to be driver-specific. I can reproduce this with ALSA, but not with
> OSS or PulseAudio via ALSA.
>
> It looks like what's happening is the application has periods where it plays no
> sound effects, so dsound runs out of data to send. That's fine and by design,
> but the ALSA driver doesn't handle the underrun situation very well. Once an
> underrun occurs, everything falls apart and ALSA refuses to report underruns or
> recover in any consistent way.
>
> I'll keep looking at it.

what is the meaning of "This->bufsize_frames" ?

if(!duration)
        duration = 300000; /* 0.03s */
    This->bufsize_frames = ceil((duration / 10000000.) * fmt->nSamplesPerSec);
    This->local_buffer = HeapAlloc(GetProcessHeap(), 0,
            This->bufsize_frames * fmt->nBlockAlign);

can you add snd_pcm_dump() between snd_pcm_sw_params() and snd_pcm_prepare()

snd_pcm_uframes_t boundary;
+   snd_output_t *output = NULL;
    const WAVEFORMATEXTENSIBLE *fmtex = (const WAVEFORMATEXTENSIBLE *)fmt;

if((err = snd_pcm_sw_params(This->pcm_handle, sw_params)) < 0){
        WARN("Unable to set sw params: %d (%s)\n", err, snd_strerror(err));
        hr = E_FAIL;
        goto exit;
    }

+   snd_output_stdio_attach(&output, stdout, 0);
+   if (err == 0) {
+       snd_pcm_dump(This->pcm_handle, output);
+        snd_output_close(output);
+   };

if((err = snd_pcm_prepare(This->pcm_handle)) < 0){