/**************************************************************************
* wodPlayer [internal]
*/
static DWORD CALLBACK wodPlayer(LPVOID pmt)
{
WORD uDevID = (DWORD_PTR)pmt;
WINE_WAVEOUT* wwo = &WOutDev[uDevID];
wwo->state = WINE_WS_STOPPED;
SetEvent(wwo->hStartUpEvent);
for (;;) {
if (wwo->FlowStarted) {
AuHandleEvents(wwo->AuServ);
if (wwo->state == WINE_WS_PLAYING && wwo->freeBytes && wwo->BufferUsed)
nas_send_buffer(wwo);
}
if (wwo->BufferUsed <= FRAG_SIZE && wwo->writeBytes > 0)
wodPlayer_NotifyCompletions(wwo, FALSE);
WaitForSingleObject(wwo->msgRing.msg_event, 20);
wodPlayer_ProcessMessages(wwo);
while(wwo->lpPlayPtr) {
wwo->lpPlayPtr->reserved = wwo->WrittenTotal + wwo->lpPlayPtr->dwBufferLength;
nas_add_buffer(wwo);
wodPlayer_PlayPtrNext(wwo);
}
return 0;
}
}
/**************************************************************************
* wodPlayer_WriteMaxFrags [internal]
* Writes the maximum number of frames possible to the DSP and returns
* the number of frames written.
*/
static int wodPlayer_WriteMaxFrags(WINE_WAVEDEV* wwo, DWORD* frames)
{
/* Only attempt to write to free frames */
LPWAVEHDR lpWaveHdr = wwo->lpPlayPtr;
DWORD dwLength = snd_pcm_bytes_to_frames(wwo->pcm, lpWaveHdr->dwBufferLength - wwo->dwPartialOffset);
int toWrite = min(dwLength, *frames);
int written;
TRACE("Writing wavehdr %p.%u[%u]\n", lpWaveHdr, wwo->dwPartialOffset, lpWaveHdr->dwBufferLength);
if (toWrite > 0) {
written = (wwo->write)(wwo->pcm, lpWaveHdr->lpData + wwo->dwPartialOffset, toWrite);
if ( written < 0) {
/* XRUN occurred. let's try to recover */
wine_snd_pcm_recover(wwo->pcm, written, 0);
written = (wwo->write)(wwo->pcm, lpWaveHdr->lpData + wwo->dwPartialOffset, toWrite);
}
if (written <= 0) {
/* still in error */
ERR("Error in writing wavehdr. Reason: %s\n", snd_strerror(written));
return written;
}
} else
written = 0;
wwo->dwPartialOffset += snd_pcm_frames_to_bytes(wwo->pcm, written);
if (wwo->dwPartialOffset + wwo->format.Format.nBlockAlign - 1 >= lpWaveHdr->dwBufferLength) {
/* this will be used to check if the given wave header has been fully played or not... */
wwo->dwPartialOffset = lpWaveHdr->dwBufferLength;
/* If we wrote all current wavehdr, skip to the next one */
wodPlayer_PlayPtrNext(wwo);
}
*frames -= written;
wwo->dwWrittenTotal += snd_pcm_frames_to_bytes(wwo->pcm, written);
TRACE("dwWrittenTotal=%u\n", wwo->dwWrittenTotal);
return written;
}
