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winecoreaudio: Implement widStart.

oldstable
Ken Thomases 2006-12-28 11:07:08 -06:00 committed by Alexandre Julliard
parent c47c82a20b
commit 959ec2aa44
1 changed files with 35 additions and 2 deletions
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37
dlls/winmm/winecoreaudio/audio.c
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@ -1868,6 +1868,9 @@ static DWORD widAddBuffer(WORD wDevID, LPWAVEHDR lpWaveHdr, DWORD dwSize)
*/
static DWORD widStart(WORD wDevID)
{
DWORD ret = MMSYSERR_NOERROR;
WINE_WAVEIN* wwi;
TRACE("(%u);\n", wDevID);
if (wDevID >= MAX_WAVEINDRV)
{
@ -1875,8 +1878,38 @@ static DWORD widStart(WORD wDevID)
return MMSYSERR_INVALHANDLE;
}
FIXME("unimplemented\n");
return MMSYSERR_NOTENABLED;
/* The order of the following operations is important since we can't hold
* the mutex while we make an Audio Unit call. Set the PLAYING state
* before starting the Audio Unit. In widStop, the order is reversed.
* This guarantees that we can't get into a situation where the state is
* PLAYING but the Audio Unit isn't running. Although we can be in STOPPED
* state with the Audio Unit still running, that's harmless because the
* input callback will just throw away the sound data.
*/
wwi = &WInDev[wDevID];
OSSpinLockLock(&wwi->lock);
if (wwi->state == WINE_WS_CLOSED)
{
WARN("Trying to start closed device.\n");
ret = MMSYSERR_INVALHANDLE;
}
else
wwi->state = WINE_WS_PLAYING;
OSSpinLockUnlock(&wwi->lock);
if (ret == MMSYSERR_NOERROR)
{
/* Start pulling for audio data */
OSStatus err = AudioOutputUnitStart(wwi->audioUnit);
if (err != noErr)
ERR("Failed to start AU: %08lx\n", err);
TRACE("Recording started...\n");
}
return ret;
}