/************************************************************************** * wodPlayer [internal] */ static DWORD CALLBACK wodPlayer(LPVOID pmt) { WORD uDevID = (DWORD_PTR)pmt; WINE_WAVEDEV* wwo = &WOutDev[uDevID]; DWORD dwNextFeedTime = INFINITE; /* Time before DSP needs feeding */ DWORD dwNextNotifyTime = INFINITE; /* Time before next wave completion */ DWORD dwSleepTime; wwo->state = WINE_WS_STOPPED; SetEvent(wwo->hStartUpEvent); for (;;) { /** Wait for the shortest time before an action is required. If there * are no pending actions, wait forever for a command. */ dwSleepTime = min(dwNextFeedTime, dwNextNotifyTime); TRACE("waiting %ums (%u,%u)\n", dwSleepTime, dwNextFeedTime, dwNextNotifyTime); ALSA_WaitRingMessage(&wwo->msgRing, dwSleepTime); wodPlayer_ProcessMessages(wwo); if (wwo->state == WINE_WS_PLAYING) { dwNextFeedTime = wodPlayer_FeedDSP(wwo); dwNextNotifyTime = wodPlayer_NotifyCompletions(wwo, FALSE); if (dwNextFeedTime == INFINITE) { /* FeedDSP ran out of data, but before giving up, */ /* check that a notification didn't give us more */ wodPlayer_ProcessMessages(wwo); if (wwo->lpPlayPtr) { TRACE("recovering\n"); dwNextFeedTime = wodPlayer_FeedDSP(wwo); } } } else { dwNextFeedTime = dwNextNotifyTime = INFINITE; } } return 0; }
/************************************************************************** * widRecorder [internal] */ static DWORD CALLBACK widRecorder(LPVOID pmt) { WORD uDevID = (DWORD_PTR)pmt; WINE_WAVEDEV* wwi = &WInDev[uDevID]; WAVEHDR* lpWaveHdr; DWORD dwSleepTime; DWORD bytesRead; enum win_wm_message msg; DWORD_PTR param; HANDLE ev; DWORD frames_per_period; wwi->state = WINE_WS_STOPPED; InterlockedExchange((LONG*)&wwi->dwTotalRecorded, 0); wwi->lpQueuePtr = NULL; SetEvent(wwi->hStartUpEvent); /* make sleep time to be # of ms to output a period */ dwSleepTime = (wwi->dwPeriodSize * 1000) / wwi->format.Format.nAvgBytesPerSec; frames_per_period = snd_pcm_bytes_to_frames(wwi->pcm, wwi->dwPeriodSize); TRACE("sleeptime=%d ms, total buffer length=%d ms (%d bytes)\n", dwSleepTime, wwi->dwBufferSize * 1000 / wwi->format.Format.nAvgBytesPerSec, wwi->dwBufferSize); for (;;) { /* wait for dwSleepTime or an event in thread's queue */ if (wwi->lpQueuePtr != NULL && wwi->state == WINE_WS_PLAYING) { DWORD frames; DWORD bytes; DWORD read; lpWaveHdr = wwi->lpQueuePtr; /* read all the fragments accumulated so far */ frames = snd_pcm_avail_update(wwi->pcm); bytes = snd_pcm_frames_to_bytes(wwi->pcm, frames); TRACE("frames = %d bytes = %d state=%d\n", frames, bytes, snd_pcm_state(wwi->pcm)); if (snd_pcm_state(wwi->pcm) == SND_PCM_STATE_XRUN) { FIXME("Recovering from XRUN!\n"); snd_pcm_prepare(wwi->pcm); frames = snd_pcm_avail_update(wwi->pcm); bytes = snd_pcm_frames_to_bytes(wwi->pcm, frames); snd_pcm_start(wwi->pcm); snd_pcm_forward(wwi->pcm, frames - snd_pcm_bytes_to_frames(wwi->pcm, wwi->dwPeriodSize)); continue; } while (frames > 0 && wwi->lpQueuePtr) { TRACE("bytes = %d\n", bytes); if (lpWaveHdr->dwBufferLength - lpWaveHdr->dwBytesRecorded < bytes) { bytes = lpWaveHdr->dwBufferLength - lpWaveHdr->dwBytesRecorded; frames = snd_pcm_bytes_to_frames(wwi->pcm, bytes); } /* directly read fragment in wavehdr */ read = wwi->read(wwi->pcm, lpWaveHdr->lpData + lpWaveHdr->dwBytesRecorded, frames); bytesRead = snd_pcm_frames_to_bytes(wwi->pcm, read); TRACE("bytesRead=(%d(%d)/(%d)) -> (%d/%d)\n", bytesRead, read, frames, lpWaveHdr->dwBufferLength, lpWaveHdr->dwBufferLength - lpWaveHdr->dwBytesRecorded); if (read != (DWORD) -1) { /* update number of bytes recorded in current buffer and by this device */ lpWaveHdr->dwBytesRecorded += bytesRead; InterlockedExchangeAdd((LONG*)&wwi->dwTotalRecorded, bytesRead); frames -= read; bytes -= bytesRead; /* buffer is full. notify client */ if (!snd_pcm_bytes_to_frames(wwi->pcm, lpWaveHdr->dwBytesRecorded - lpWaveHdr->dwBufferLength)) { /* must copy the value of next waveHdr, because we have no idea of what * will be done with the content of lpWaveHdr in callback */ LPWAVEHDR lpNext = lpWaveHdr->lpNext; lpWaveHdr->dwFlags &= ~WHDR_INQUEUE; lpWaveHdr->dwFlags |= WHDR_DONE; wwi->lpQueuePtr = lpNext; widNotifyClient(wwi, WIM_DATA, (DWORD_PTR)lpWaveHdr, 0); lpWaveHdr = lpNext; } } else { WARN("read(%s, %p, %d) failed (%d/%s)\n", wwi->pcmname, lpWaveHdr->lpData + lpWaveHdr->dwBytesRecorded, frames, frames, snd_strerror(read)); } } } ALSA_WaitRingMessage(&wwi->msgRing, dwSleepTime); while (ALSA_RetrieveRingMessage(&wwi->msgRing, &msg, ¶m, &ev)) { TRACE("msg=%s param=0x%lx\n", ALSA_getCmdString(msg), param); switch (msg) { case WINE_WM_PAUSING: wwi->state = WINE_WS_PAUSED; /*FIXME("Device should stop recording\n");*/ SetEvent(ev); break; case WINE_WM_STARTING: wwi->state = WINE_WS_PLAYING; snd_pcm_start(wwi->pcm); SetEvent(ev); break; case WINE_WM_HEADER: lpWaveHdr = (LPWAVEHDR)param; lpWaveHdr->lpNext = 0; /* insert buffer at the end of queue */ { LPWAVEHDR* wh; for (wh = &(wwi->lpQueuePtr); *wh; wh = &((*wh)->lpNext)); *wh = lpWaveHdr; } break; case WINE_WM_STOPPING: if (wwi->state != WINE_WS_STOPPED) { snd_pcm_drain(wwi->pcm); /* read any headers in queue */ widRecorder_ReadHeaders(wwi); /* return current buffer to app */ lpWaveHdr = wwi->lpQueuePtr; if (lpWaveHdr) { LPWAVEHDR lpNext = lpWaveHdr->lpNext; TRACE("stop %p %p\n", lpWaveHdr, lpWaveHdr->lpNext); lpWaveHdr->dwFlags &= ~WHDR_INQUEUE; lpWaveHdr->dwFlags |= WHDR_DONE; wwi->lpQueuePtr = lpNext; widNotifyClient(wwi, WIM_DATA, (DWORD_PTR)lpWaveHdr, 0); } } wwi->state = WINE_WS_STOPPED; SetEvent(ev); break; case WINE_WM_RESETTING: if (wwi->state != WINE_WS_STOPPED) { snd_pcm_drain(wwi->pcm); } wwi->state = WINE_WS_STOPPED; wwi->dwTotalRecorded = 0; /* read any headers in queue */ widRecorder_ReadHeaders(wwi); /* return all buffers to the app */ while (wwi->lpQueuePtr) { lpWaveHdr = wwi->lpQueuePtr; TRACE("reset %p %p\n", lpWaveHdr, lpWaveHdr->lpNext); wwi->lpQueuePtr = lpWaveHdr->lpNext; lpWaveHdr->dwFlags &= ~WHDR_INQUEUE; lpWaveHdr->dwFlags |= WHDR_DONE; widNotifyClient(wwi, WIM_DATA, (DWORD_PTR)lpWaveHdr, 0); } SetEvent(ev); break; case WINE_WM_CLOSING: wwi->hThread = 0; wwi->state = WINE_WS_CLOSED; SetEvent(ev); ExitThread(0); /* shouldn't go here */ default: FIXME("unknown message %d\n", msg); break; } } } ExitThread(0); /* just for not generating compilation warnings... should never be executed */ return 0; }