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dsound: Remove minlen, since we always mix full chunks anyway.

This commit is contained in:
Andrew Eikum 2012-05-14 12:31:01 -05:00 committed by Alexandre Julliard
parent 2736d28064
commit 2c6087457b
1 changed files with 9 additions and 19 deletions
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28
dlls/dsound/mixer.c
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@ -609,10 +609,9 @@ static DWORD DSOUND_MixOne(IDirectSoundBufferImpl *dsb, DWORD writepos, DWORD mi
* Returns: the length beyond the writepos that was mixed to.
*/
static DWORD DSOUND_MixToPrimary(const DirectSoundDevice *device, DWORD writepos, DWORD mixlen, BOOL recover, BOOL *all_stopped)
static void DSOUND_MixToPrimary(const DirectSoundDevice *device, DWORD writepos, DWORD mixlen, BOOL recover, BOOL *all_stopped)
{
INT i, len;
DWORD minlen = 0;
INT i;
IDirectSoundBufferImpl *dsb;
/* unless we find a running buffer, all have stopped */
@ -643,22 +642,13 @@ static DWORD DSOUND_MixToPrimary(const DirectSoundDevice *device, DWORD writepos
dsb->state = STATE_PLAYING;
/* mix next buffer into the main buffer */
len = DSOUND_MixOne(dsb, writepos, mixlen);
if (!minlen) minlen = len;
/* record the minimum length mixed from all buffers */
/* we only want to return the length which *all* buffers have mixed */
else if (len) minlen = (len < minlen) ? len : minlen;
DSOUND_MixOne(dsb, writepos, mixlen);
*all_stopped = FALSE;
}
RtlReleaseResource(&dsb->lock);
}
}
TRACE("Mixed at least %d from all buffers\n", minlen);
return minlen;
}
/**
@ -801,7 +791,7 @@ static void DSOUND_PerformMix(DirectSoundDevice *device)
if (device->priolevel != DSSCL_WRITEPRIMARY) {
BOOL recover = FALSE, all_stopped = FALSE;
DWORD playpos, writepos, writelead, maxq, frag, prebuff_max, prebuff_left, size1, size2, mixplaypos, mixplaypos2;
DWORD playpos, writepos, writelead, maxq, prebuff_max, prebuff_left, size1, size2, mixplaypos, mixplaypos2;
LPVOID buf1, buf2;
int nfiller;
@ -873,19 +863,19 @@ static void DSOUND_PerformMix(DirectSoundDevice *device)
prebuff_left, device->prebuf, device->fraglen, prebuff_max, writelead);
/* do the mixing */
frag = DSOUND_MixToPrimary(device, writepos, maxq, recover, &all_stopped);
DSOUND_MixToPrimary(device, writepos, maxq, recover, &all_stopped);
if (frag + writepos > device->buflen)
if (maxq + writepos > device->buflen)
{
DWORD todo = device->buflen - writepos;
device->normfunction(device->mix_buffer + DSOUND_bufpos_to_mixpos(device, writepos), device->buffer + writepos, todo);
device->normfunction(device->mix_buffer, device->buffer, frag - todo);
device->normfunction(device->mix_buffer, device->buffer, maxq - todo);
}
else
device->normfunction(device->mix_buffer + DSOUND_bufpos_to_mixpos(device, writepos), device->buffer + writepos, frag);
device->normfunction(device->mix_buffer + DSOUND_bufpos_to_mixpos(device, writepos), device->buffer + writepos, maxq);
/* update the mix position, taking wrap-around into account */
device->mixpos = writepos + frag;
device->mixpos = writepos + maxq;
device->mixpos %= device->buflen;
/* update prebuff left */