LPWAVEFORMATEX DSOUND_CopyFormat(LPCWAVEFORMATEX wfex) { DWORD size = DSOUND_GetFormatSize(wfex); LPWAVEFORMATEX pwfx = HeapAlloc(GetProcessHeap(),0,size); if (pwfx == NULL) { WARN("out of memory\n"); } else if (wfex->wFormatTag != WAVE_FORMAT_PCM) { CopyMemory(pwfx, wfex, size); } else { CopyMemory(pwfx, wfex, sizeof(PCMWAVEFORMAT)); pwfx->cbSize=0; if (pwfx->nBlockAlign != pwfx->nChannels * pwfx->wBitsPerSample/8) { WARN("Fixing bad nBlockAlign (%u)\n", pwfx->nBlockAlign); pwfx->nBlockAlign = pwfx->nChannels * pwfx->wBitsPerSample/8; } if (pwfx->nAvgBytesPerSec != pwfx->nSamplesPerSec * pwfx->nBlockAlign) { WARN("Fixing bad nAvgBytesPerSec (%u)\n", pwfx->nAvgBytesPerSec); pwfx->nAvgBytesPerSec = pwfx->nSamplesPerSec * pwfx->nBlockAlign; } } return pwfx; }
static HRESULT DSOUND_PrimarySetFormat(DirectSoundDevice *device, LPCWAVEFORMATEX wfex, BOOL forced) { HRESULT err = DSERR_BUFFERLOST; int i; DWORD nSamplesPerSec, bpp, chans; LPWAVEFORMATEX oldpwfx; TRACE("(%p,%p)\n", device, wfex); if (device->priolevel == DSSCL_NORMAL) { WARN("failed priority check!\n"); return DSERR_PRIOLEVELNEEDED; } /* Let's be pedantic! */ if (wfex == NULL) { WARN("invalid parameter: wfex==NULL!\n"); return DSERR_INVALIDPARAM; } TRACE("(formattag=0x%04x,chans=%d,samplerate=%d," "bytespersec=%d,blockalign=%d,bitspersamp=%d,cbSize=%d)\n", wfex->wFormatTag, wfex->nChannels, wfex->nSamplesPerSec, wfex->nAvgBytesPerSec, wfex->nBlockAlign, wfex->wBitsPerSample, wfex->cbSize); /* **** */ RtlAcquireResourceExclusive(&(device->buffer_list_lock), TRUE); EnterCriticalSection(&(device->mixlock)); nSamplesPerSec = device->pwfx->nSamplesPerSec; bpp = device->pwfx->wBitsPerSample; chans = device->pwfx->nChannels; oldpwfx = device->pwfx; device->pwfx = DSOUND_CopyFormat(wfex); if (device->pwfx == NULL) { device->pwfx = oldpwfx; oldpwfx = NULL; err = DSERR_OUTOFMEMORY; goto done; } if (!(device->drvdesc.dwFlags & DSDDESC_DOMMSYSTEMSETFORMAT) && device->hwbuf) { err = IDsDriverBuffer_SetFormat(device->hwbuf, device->pwfx); /* On bad format, try to re-create, big chance it will work then, only do this if we <HAVE> to */ if (forced && (device->pwfx->nSamplesPerSec/100 != wfex->nSamplesPerSec/100 || err == DSERR_BADFORMAT)) { DWORD cp_size = wfex->wFormatTag == WAVE_FORMAT_PCM ? sizeof(PCMWAVEFORMAT) : sizeof(WAVEFORMATEX) + wfex->cbSize; err = DSERR_BUFFERLOST; CopyMemory(device->pwfx, wfex, cp_size); } if (err != DSERR_BUFFERLOST && FAILED(err)) { DWORD size = DSOUND_GetFormatSize(oldpwfx); WARN("IDsDriverBuffer_SetFormat failed\n"); if (!forced) { CopyMemory(device->pwfx, oldpwfx, size); err = DS_OK; } goto done; } if (err == S_FALSE) { /* ALSA specific: S_FALSE tells that recreation was successful, * but size and location may be changed, and buffer has to be restarted * I put it here, so if frequency doesn't match the error will be changed to DSERR_BUFFERLOST * and the entire re-initialization will occur anyway */ IDsDriverBuffer_Lock(device->hwbuf, (LPVOID *)&device->buffer, &device->buflen, NULL, NULL, 0, 0, DSBLOCK_ENTIREBUFFER); IDsDriverBuffer_Unlock(device->hwbuf, device->buffer, 0, NULL, 0); if (device->state == STATE_PLAYING) device->state = STATE_STARTING; else if (device->state == STATE_STOPPING) device->state = STATE_STOPPED; device->pwplay = device->pwqueue = device->playpos = device->mixpos = 0; err = DS_OK; } DSOUND_RecalcPrimary(device); } if (err == DSERR_BUFFERLOST) { DSOUND_PrimaryClose(device); err = DSOUND_ReopenDevice(device, FALSE); if (FAILED(err)) { WARN("DSOUND_ReopenDevice failed: %08x\n", err); goto done; } err = DSOUND_PrimaryOpen(device); if (err != DS_OK) { WARN("DSOUND_PrimaryOpen failed\n"); goto done; } if (wfex->nSamplesPerSec/100 != device->pwfx->nSamplesPerSec/100 && forced && device->buffer) { DSOUND_PrimaryClose(device); device->pwfx->nSamplesPerSec = wfex->nSamplesPerSec; err = DSOUND_ReopenDevice(device, TRUE); if (FAILED(err)) WARN("DSOUND_ReopenDevice(2) failed: %08x\n", err); else if (FAILED((err = DSOUND_PrimaryOpen(device)))) WARN("DSOUND_PrimaryOpen(2) failed: %08x\n", err); } } device->mix_buffer_len = DSOUND_bufpos_to_mixpos(device, device->buflen); device->mix_buffer = HeapReAlloc(GetProcessHeap(), 0, device->mix_buffer, device->mix_buffer_len); FillMemory(device->mix_buffer, device->mix_buffer_len, 0); device->mixfunction = mixfunctions[device->pwfx->wBitsPerSample/8 - 1]; device->normfunction = normfunctions[device->pwfx->wBitsPerSample/8 - 1]; if (nSamplesPerSec != device->pwfx->nSamplesPerSec || bpp != device->pwfx->wBitsPerSample || chans != device->pwfx->nChannels) { IDirectSoundBufferImpl** dsb = device->buffers; for (i = 0; i < device->nrofbuffers; i++, dsb++) { /* **** */ RtlAcquireResourceExclusive(&(*dsb)->lock, TRUE); (*dsb)->freqAdjust = ((DWORD64)(*dsb)->freq << DSOUND_FREQSHIFT) / device->pwfx->nSamplesPerSec; DSOUND_RecalcFormat((*dsb)); DSOUND_MixToTemporary((*dsb), 0, (*dsb)->buflen, FALSE); (*dsb)->primary_mixpos = 0; RtlReleaseResource(&(*dsb)->lock); /* **** */ } } done: LeaveCriticalSection(&(device->mixlock)); RtlReleaseResource(&(device->buffer_list_lock)); /* **** */ HeapFree(GetProcessHeap(), 0, oldpwfx); return err; }