HRESULT CDirectSoundAecCapture::EnumDevices()
{
if (FAILED(DirectSoundEnumerateA(DSoundEnum, (LPVOID)this)))
{
return E_FAIL;
}
if (FAILED(DirectSoundCaptureEnumerateA(DSoundCapEnum, (LPVOID)this)))
{
return E_FAIL;
}
return S_OK;
}
void alcDSoundProbe(enum DevProbe type)
{
HRESULT hr, hrcom;
ALuint i;
switch(type)
{
case ALL_DEVICE_PROBE:
for(i = 0;i < NumPlaybackDevices;++i)
free(PlaybackDeviceList[i].name);
free(PlaybackDeviceList);
PlaybackDeviceList = NULL;
NumPlaybackDevices = 0;
hr = DirectSoundEnumerateA(DSoundEnumPlaybackDevices, NULL);
if(FAILED(hr))
ERR("Error enumerating DirectSound playback devices (%#x)!\n", (unsigned int)hr);
else
{
for(i = 0;i < NumPlaybackDevices;i++)
AppendAllDevicesList(PlaybackDeviceList[i].name);
}
break;
case CAPTURE_DEVICE_PROBE:
for(i = 0;i < NumCaptureDevices;++i)
free(CaptureDeviceList[i].name);
free(CaptureDeviceList);
CaptureDeviceList = NULL;
NumCaptureDevices = 0;
/* Initialize COM to prevent name truncation */
hrcom = CoInitialize(NULL);
hr = DirectSoundCaptureEnumerateA(DSoundEnumCaptureDevices, NULL);
if(FAILED(hr))
ERR("Error enumerating DirectSound capture devices (%#x)!\n", (unsigned int)hr);
else
{
for(i = 0;i < NumCaptureDevices;i++)
AppendCaptureDeviceList(CaptureDeviceList[i].name);
}
if(SUCCEEDED(hrcom))
CoUninitialize();
break;
}
}
static ALCenum DSoundOpenCapture(ALCdevice *device, const ALCchar *deviceName)
{
DSoundCaptureData *data = NULL;
WAVEFORMATEXTENSIBLE InputType;
DSCBUFFERDESC DSCBDescription;
LPGUID guid = NULL;
HRESULT hr, hrcom;
ALuint samples;
if(!CaptureDeviceList)
{
/* Initialize COM to prevent name truncation */
hrcom = CoInitialize(NULL);
hr = DirectSoundCaptureEnumerateA(DSoundEnumCaptureDevices, NULL);
if(FAILED(hr))
ERR("Error enumerating DirectSound devices (%#x)!\n", (unsigned int)hr);
if(SUCCEEDED(hrcom))
CoUninitialize();
}
if(!deviceName && NumCaptureDevices > 0)
{
deviceName = CaptureDeviceList[0].name;
guid = &CaptureDeviceList[0].guid;
}
else
{
ALuint i;
for(i = 0;i < NumCaptureDevices;i++)
{
if(strcmp(deviceName, CaptureDeviceList[i].name) == 0)
{
guid = &CaptureDeviceList[i].guid;
break;
}
}
if(i == NumCaptureDevices)
return ALC_INVALID_VALUE;
}
switch(device->FmtType)
{
case DevFmtByte:
case DevFmtUShort:
case DevFmtUInt:
WARN("%s capture samples not supported\n", DevFmtTypeString(device->FmtType));
return ALC_INVALID_ENUM;
case DevFmtUByte:
case DevFmtShort:
case DevFmtInt:
case DevFmtFloat:
break;
}
//Initialise requested device
data = calloc(1, sizeof(DSoundCaptureData));
if(!data)
return ALC_OUT_OF_MEMORY;
hr = DS_OK;
//DirectSoundCapture Init code
if(SUCCEEDED(hr))
hr = DirectSoundCaptureCreate(guid, &data->DSC, NULL);
if(SUCCEEDED(hr))
{
memset(&InputType, 0, sizeof(InputType));
switch(device->FmtChans)
{
case DevFmtMono:
InputType.dwChannelMask = SPEAKER_FRONT_CENTER;
break;
case DevFmtStereo:
InputType.dwChannelMask = SPEAKER_FRONT_LEFT |
SPEAKER_FRONT_RIGHT;
break;
case DevFmtQuad:
InputType.dwChannelMask = SPEAKER_FRONT_LEFT |
SPEAKER_FRONT_RIGHT |
SPEAKER_BACK_LEFT |
SPEAKER_BACK_RIGHT;
break;
case DevFmtX51:
InputType.dwChannelMask = SPEAKER_FRONT_LEFT |
SPEAKER_FRONT_RIGHT |
SPEAKER_FRONT_CENTER |
SPEAKER_LOW_FREQUENCY |
SPEAKER_BACK_LEFT |
SPEAKER_BACK_RIGHT;
break;
case DevFmtX51Side:
InputType.dwChannelMask = SPEAKER_FRONT_LEFT |
SPEAKER_FRONT_RIGHT |
SPEAKER_FRONT_CENTER |
SPEAKER_LOW_FREQUENCY |
SPEAKER_SIDE_LEFT |
SPEAKER_SIDE_RIGHT;
break;
case DevFmtX61:
InputType.dwChannelMask = SPEAKER_FRONT_LEFT |
SPEAKER_FRONT_RIGHT |
SPEAKER_FRONT_CENTER |
SPEAKER_LOW_FREQUENCY |
SPEAKER_BACK_CENTER |
SPEAKER_SIDE_LEFT |
SPEAKER_SIDE_RIGHT;
break;
case DevFmtX71:
InputType.dwChannelMask = SPEAKER_FRONT_LEFT |
SPEAKER_FRONT_RIGHT |
SPEAKER_FRONT_CENTER |
SPEAKER_LOW_FREQUENCY |
SPEAKER_BACK_LEFT |
SPEAKER_BACK_RIGHT |
SPEAKER_SIDE_LEFT |
SPEAKER_SIDE_RIGHT;
break;
}
InputType.Format.wFormatTag = WAVE_FORMAT_PCM;
InputType.Format.nChannels = ChannelsFromDevFmt(device->FmtChans);
InputType.Format.wBitsPerSample = BytesFromDevFmt(device->FmtType) * 8;
InputType.Format.nBlockAlign = InputType.Format.nChannels*InputType.Format.wBitsPerSample/8;
InputType.Format.nSamplesPerSec = device->Frequency;
InputType.Format.nAvgBytesPerSec = InputType.Format.nSamplesPerSec*InputType.Format.nBlockAlign;
InputType.Format.cbSize = 0;
if(InputType.Format.nChannels > 2 || device->FmtType == DevFmtFloat)
{
InputType.Format.wFormatTag = WAVE_FORMAT_EXTENSIBLE;
InputType.Format.cbSize = sizeof(WAVEFORMATEXTENSIBLE) - sizeof(WAVEFORMATEX);
InputType.Samples.wValidBitsPerSample = InputType.Format.wBitsPerSample;
if(device->FmtType == DevFmtFloat)
InputType.SubFormat = KSDATAFORMAT_SUBTYPE_IEEE_FLOAT;
else
InputType.SubFormat = KSDATAFORMAT_SUBTYPE_PCM;
}
samples = device->UpdateSize * device->NumUpdates;
samples = maxu(samples, 100 * device->Frequency / 1000);
memset(&DSCBDescription, 0, sizeof(DSCBUFFERDESC));
DSCBDescription.dwSize = sizeof(DSCBUFFERDESC);
DSCBDescription.dwFlags = 0;
DSCBDescription.dwBufferBytes = samples * InputType.Format.nBlockAlign;
DSCBDescription.lpwfxFormat = &InputType.Format;
hr = IDirectSoundCapture_CreateCaptureBuffer(data->DSC, &DSCBDescription, &data->DSCbuffer, NULL);
}
if(SUCCEEDED(hr))
{
data->Ring = CreateRingBuffer(InputType.Format.nBlockAlign, device->UpdateSize * device->NumUpdates);
if(data->Ring == NULL)
hr = DSERR_OUTOFMEMORY;
}
if(FAILED(hr))
{
ERR("Device init failed: 0x%08lx\n", hr);
DestroyRingBuffer(data->Ring);
data->Ring = NULL;
if(data->DSCbuffer != NULL)
IDirectSoundCaptureBuffer_Release(data->DSCbuffer);
data->DSCbuffer = NULL;
if(data->DSC)
IDirectSoundCapture_Release(data->DSC);
data->DSC = NULL;
free(data);
return ALC_INVALID_VALUE;
}
data->BufferBytes = DSCBDescription.dwBufferBytes;
SetDefaultWFXChannelOrder(device);
device->DeviceName = strdup(deviceName);
device->ExtraData = data;
return ALC_NO_ERROR;
}
