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dsound: Make sure secondary_remainder and buflen are aligned to primary buffer in mixer.

This commit is contained in:
Maarten Lankhorst 2007-07-12 12:26:19 +02:00 committed by Alexandre Julliard
parent 16e9c35910
commit f94114a88d
1 changed files with 3 additions and 2 deletions
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5
dlls/dsound/mixer.c
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@ -432,6 +432,7 @@ static DWORD DSOUND_MixInBuffer(IDirectSoundBufferImpl *dsb, DWORD writepos, DWO
int secondary_remainder = dsb->buflen - dsb->buf_mixpos;
int adjusted_remainder = MulDiv(dsb->device->pwfx->nAvgBytesPerSec, secondary_remainder, dsb->nAvgBytesPerSec);
assert(adjusted_remainder >= 0);
adjusted_remainder -= adjusted_remainder % dsb->device->pwfx->nBlockAlign; /* data alignment */
/* The adjusted remainder must be at least one sample,
* otherwise we will never reach the end of the
* secondary buffer, as there will perpetually be a
@ -588,7 +589,7 @@ static DWORD DSOUND_MixOne(IDirectSoundBufferImpl *dsb, DWORD playpos, DWORD wri
{
/* The buffer's primary_mixpos may be before or after the the device
* buffer's mixpos, but both must be ahead of writepos. */
DWORD primary_done;
DWORD primary_done, buflen = dsb->buflen / dsb->pwfx->nBlockAlign * dsb->device->pwfx->nBlockAlign;
TRACE("(%p,%d,%d,%d)\n",dsb,playpos,writepos,mixlen);
TRACE("writepos=%d, buf_mixpos=%d, primary_mixpos=%d, mixlen=%d\n", writepos, dsb->buf_mixpos, dsb->primary_mixpos, mixlen);
@ -611,7 +612,7 @@ static DWORD DSOUND_MixOne(IDirectSoundBufferImpl *dsb, DWORD playpos, DWORD wri
TRACE("mixlen (primary) = %i\n", mixlen);
/* clip to valid length */
mixlen = (dsb->buflen < mixlen) ? dsb->buflen : mixlen;
mixlen = (buflen < mixlen) ? buflen : mixlen;
TRACE("primary_done=%d, mixlen (buffer)=%d\n", primary_done, mixlen);