static DWORD DSOUND_MixToPrimary(const DirectSoundDevice *device, DWORD writepos, DWORD mixlen, BOOL mustlock, BOOL recover, BOOL *all_stopped) { INT i, len; DWORD minlen = 0; IDirectSoundBufferImpl *dsb; BOOL gotall = TRUE; /* unless we find a running buffer, all have stopped */ *all_stopped = TRUE; TRACE("(%d,%d,%d)\n", writepos, mixlen, recover); for (i = 0; i < device->nrofbuffers; i++) { dsb = device->buffers[i]; TRACE("MixToPrimary for %p, state=%d\n", dsb, dsb->state); if (dsb->buflen && dsb->state && !dsb->hwbuf) { TRACE("Checking %p, mixlen=%d\n", dsb, mixlen); if (!RtlAcquireResourceShared(&dsb->lock, mustlock)) { gotall = FALSE; continue; } /* if buffer is stopping it is stopped now */ if (dsb->state == STATE_STOPPING) { dsb->state = STATE_STOPPED; DSOUND_CheckEvent(dsb, 0, 0); } else if (dsb->state != STATE_STOPPED) { /* if recovering, reset the mix position */ if ((dsb->state == STATE_STARTING) || recover) { dsb->primary_mixpos = writepos; } /* if the buffer was starting, it must be playing now */ if (dsb->state == STATE_STARTING) 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; *all_stopped = FALSE; } RtlReleaseResource(&dsb->lock); } } TRACE("Mixed at least %d from all buffers\n", minlen); if (!gotall) return 0; return minlen; }
static void DSOUND_MixToPrimary(const DirectSoundDevice *device, DWORD writepos, DWORD mixlen, BOOL recover, BOOL *all_stopped) { INT i; IDirectSoundBufferImpl *dsb; /* unless we find a running buffer, all have stopped */ *all_stopped = TRUE; TRACE("(%d,%d,%d)\n", writepos, mixlen, recover); for (i = 0; i < device->nrofbuffers; i++) { dsb = device->buffers[i]; TRACE("MixToPrimary for %p, state=%d\n", dsb, dsb->state); if (dsb->buflen && dsb->state) { TRACE("Checking %p, mixlen=%d\n", dsb, mixlen); RtlAcquireResourceShared(&dsb->lock, TRUE); /* if buffer is stopping it is stopped now */ if (dsb->state == STATE_STOPPING) { dsb->state = STATE_STOPPED; DSOUND_CheckEvent(dsb, 0, 0); } else if (dsb->state != STATE_STOPPED) { /* if the buffer was starting, it must be playing now */ if (dsb->state == STATE_STARTING) dsb->state = STATE_PLAYING; /* mix next buffer into the main buffer */ DSOUND_MixOne(dsb, writepos, mixlen); *all_stopped = FALSE; } RtlReleaseResource(&dsb->lock); } } }