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;
}