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Fixes for various underrun-related problems. Also added a mechanism 

for the sound driver to request that a Stop should close and reopen
the device.
This commit is contained in:
Ove Kaaven 2001-01-13 01:00:00 +00:00 committed by Alexandre Julliard
parent 0a01fbdacb
commit 62510ddbf6
1 changed files with 50 additions and 14 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

60
dlls/dsound/dsound_main.c
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@ -1032,6 +1032,35 @@ static void DSOUND_PrimaryClose(IDirectSoundBufferImpl *dsb)
}
}
static HRESULT DSOUND_PrimaryPlay(IDirectSoundBufferImpl *dsb)
{
HRESULT err = DS_OK;
if (dsb->hwbuf)
err = IDsDriverBuffer_Play(dsb->hwbuf, 0, 0, DSBPLAY_LOOPING);
return err;
}
static HRESULT DSOUND_PrimaryStop(IDirectSoundBufferImpl *dsb)
{
HRESULT err = DS_OK;
if (dsb->hwbuf) {
err = IDsDriverBuffer_Stop(dsb->hwbuf);
if (err == DSERR_BUFFERLOST) {
/* Wine-only: the driver wants us to reopen the device */
/* FIXME: check for errors */
IDsDriverBuffer_Release(primarybuf->hwbuf);
waveOutClose(dsb->dsound->hwo);
dsb->dsound->hwo = 0;
waveOutOpen(&(dsb->dsound->hwo), dsb->dsound->drvdesc.dnDevNode,
&(primarybuf->wfx), 0, 0, CALLBACK_NULL | WAVE_DIRECTSOUND);
err = IDsDriver_CreateSoundBuffer(dsb->dsound->driver,&(dsb->wfx),dsb->dsbd.dwFlags,0,
&(dsb->buflen),&(dsb->buffer),
(LPVOID)&(dsb->hwbuf));
}
}
return err;
}
/* This sets this format for the <em>Primary Buffer Only</em> */
/* See file:///cdrom/sdk52/docs/worddoc/dsound.doc page 120 */
static HRESULT WINAPI IDirectSoundBufferImpl_SetFormat(
@ -1304,7 +1333,7 @@ static DWORD WINAPI IDirectSoundBufferImpl_Release(LPDIRECTSOUNDBUFFER iface) {
}
static DWORD DSOUND_CalcPlayPosition(IDirectSoundBufferImpl *This,
DWORD state, DWORD pplay, DWORD pmix, DWORD bmix)
DWORD state, DWORD pplay, DWORD pwrite, DWORD pmix, DWORD bmix)
{
DWORD bplay;
@ -1325,7 +1354,9 @@ static DWORD DSOUND_CalcPlayPosition(IDirectSoundBufferImpl *This,
if (pmix < pplay) pmix += primarybuf->buflen; /* wraparound */
pmix -= pplay;
/* detect buffer underrun */
if ((pmix > ((DS_SND_QUEUE + 1) * primarybuf->dsound->fraglen + primarybuf->writelead))) {
if (pwrite < pplay) pwrite += primarybuf->buflen; /* wraparound */
pwrite -= pplay;
if (pmix > (DS_SND_QUEUE * primarybuf->dsound->fraglen + pwrite + primarybuf->writelead)) {
TRACE("detected an underrun: primary queue was %ld\n",pmix);
pmix = 0;
}
@ -1383,11 +1414,11 @@ static HRESULT WINAPI IDirectSoundBufferImpl_GetCurrentPosition(
*playpos = This->buf_mixpos;
}
else if (playpos) {
DWORD pplay, lplay, splay, pstate;
DWORD pplay, pwrite, lplay, splay, pstate;
/* let's get this exact; first, recursively call GetPosition on the primary */
EnterCriticalSection(&(primarybuf->lock));
if ((This->dsbd.dwFlags & DSBCAPS_GETCURRENTPOSITION2) || primarybuf->hwbuf || !DS_EMULDRIVER) {
IDirectSoundBufferImpl_GetCurrentPosition((LPDIRECTSOUNDBUFFER)primarybuf, &pplay, NULL);
IDirectSoundBufferImpl_GetCurrentPosition((LPDIRECTSOUNDBUFFER)primarybuf, &pplay, &pwrite);
/* detect HEL mode underrun */
pstate = primarybuf->state;
if (!(primarybuf->hwbuf || primarybuf->dsound->pwqueue)) {
@ -1403,7 +1434,7 @@ static HRESULT WINAPI IDirectSoundBufferImpl_GetCurrentPosition(
lplay = This->primary_mixpos;
splay = This->buf_mixpos;
/* calculate play position using this */
*playpos = DSOUND_CalcPlayPosition(This, pstate, pplay, lplay, splay);
*playpos = DSOUND_CalcPlayPosition(This, pstate, pplay, pwrite, lplay, splay);
} else {
/* (unless the app isn't using GETCURRENTPOSITION2) */
/* don't know exactly how this should be handled...
@ -2081,6 +2112,7 @@ static HRESULT WINAPI IDirectSoundImpl_DuplicateSoundBuffer(
IDirectSoundBuffer_AddRef(pdsb);
memcpy(*ippdsb, ipdsb, sizeof(IDirectSoundBufferImpl));
(*ippdsb)->ref = 1;
(*ippdsb)->state = STATE_STOPPED;
(*ippdsb)->playpos = 0;
(*ippdsb)->buf_mixpos = 0;
(*ippdsb)->dsound = This;
@ -2710,7 +2742,7 @@ static DWORD DSOUND_MixOne(IDirectSoundBufferImpl *dsb, DWORD playpos, DWORD wri
DWORD len, slen;
/* determine this buffer's write position */
DWORD buf_writepos = DSOUND_CalcPlayPosition(dsb, dsb->state & primarybuf->state, writepos,
dsb->primary_mixpos, dsb->buf_mixpos);
writepos, dsb->primary_mixpos, dsb->buf_mixpos);
/* determine how much already-mixed data exist */
DWORD buf_done =
((dsb->buf_mixpos < buf_writepos) ? dsb->buflen : 0) +
@ -2734,9 +2766,13 @@ static DWORD DSOUND_MixOne(IDirectSoundBufferImpl *dsb, DWORD playpos, DWORD wri
/* check whether CalcPlayPosition detected a mixing underrun */
if ((buf_done == 0) && (dsb->primary_mixpos != writepos)) {
/* it did, try to recover */
/* it did, but did we have more to play? */
if ((dsb->playflags & DSBPLAY_LOOPING) ||
(dsb->buf_mixpos < dsb->buflen)) {
/* yes, have to recover */
ERR("underrun on sound buffer %p\n", dsb);
TRACE("recovering from underrun: primary_mixpos=%ld\n", writepos);
}
dsb->primary_mixpos = writepos;
primary_done = 0;
}
@ -2949,7 +2985,7 @@ static void CALLBACK DSOUND_timer(UINT timerID, UINT msg, DWORD dwUser, DWORD dw
TRACE("reached end of mixed data (inq=%ld, maxq=%ld)\n", inq, maxq);
inq = 0;
/* stop the playback now, to allow buffers to refill */
IDsDriverBuffer_Stop(primarybuf->hwbuf);
DSOUND_PrimaryStop(primarybuf);
if (primarybuf->state == STATE_PLAYING) {
primarybuf->state = STATE_STARTING;
}
@ -2988,14 +3024,14 @@ static void CALLBACK DSOUND_timer(UINT timerID, UINT msg, DWORD dwUser, DWORD dw
if (frag) {
/* buffers have been filled, restart playback */
if (primarybuf->state == STATE_STARTING) {
IDsDriverBuffer_Play(primarybuf->hwbuf, 0, 0, DSBPLAY_LOOPING);
DSOUND_PrimaryPlay(primarybuf);
primarybuf->state = STATE_PLAYING;
TRACE("starting playback\n");
}
else if (primarybuf->state == STATE_STOPPED) {
/* the primarybuf is supposed to play if there's something to play
* even if it is reported as stopped, so don't let this confuse you */
IDsDriverBuffer_Play(primarybuf->hwbuf, 0, 0, DSBPLAY_LOOPING);
DSOUND_PrimaryPlay(primarybuf);
primarybuf->state = STATE_STOPPING;
TRACE("starting playback\n");
}
@ -3004,11 +3040,11 @@ static void CALLBACK DSOUND_timer(UINT timerID, UINT msg, DWORD dwUser, DWORD dw
} else {
/* in the DSSCL_WRITEPRIMARY mode, the app is totally in charge... */
if (primarybuf->state == STATE_STARTING) {
IDsDriverBuffer_Play(primarybuf->hwbuf, 0, 0, DSBPLAY_LOOPING);
DSOUND_PrimaryPlay(primarybuf);
primarybuf->state = STATE_PLAYING;
}
else if (primarybuf->state == STATE_STOPPING) {
IDsDriverBuffer_Stop(primarybuf->hwbuf);
DSOUND_PrimaryStop(primarybuf);
primarybuf->state = STATE_STOPPED;
}
}