static void oss_capture_samples(ALCdevice *pDevice, ALCvoid *pBuffer, ALCuint lSamples)
{
oss_data *data = (oss_data*)pDevice->ExtraData;
if(lSamples <= (ALCuint)RingBufferSize(data->ring))
ReadRingBuffer(data->ring, pBuffer, lSamples);
else
SetALCError(ALC_INVALID_VALUE);
}
static void pa_capture_samples(ALCdevice *device, ALCvoid *buffer, ALCuint samples)
{
pa_data *data = device->ExtraData;
if(samples <= (ALCuint)RingBufferSize(data->ring))
ReadRingBuffer(data->ring, buffer, samples);
else
alcSetError(device, ALC_INVALID_VALUE);
}
static void WinMMCaptureSamples(ALCdevice *pDevice, ALCvoid *pBuffer, ALCuint lSamples)
{
WinMMData *pData = (WinMMData*)pDevice->ExtraData;
if(WinMMAvailableSamples(pDevice) >= lSamples)
ReadRingBuffer(pData->pRing, pBuffer, lSamples);
else
alcSetError(pDevice, ALC_INVALID_VALUE);
}
static void alsa_capture_samples(ALCdevice *Device, ALCvoid *Buffer, ALCuint Samples)
{
alsa_data *data = (alsa_data*)Device->ExtraData;
if(Samples <= alsa_available_samples(Device))
ReadRingBuffer(data->ring, Buffer, Samples);
else
alcSetError(Device, ALC_INVALID_VALUE);
}
static void pulse_capture_samples(ALCdevice *device, ALCvoid *buffer, ALCuint samples) //{{{
{
pulse_data *data = device->ExtraData;
ALCuint available = RingBufferSize(data->ring);
const void *buf;
size_t length;
available *= data->frame_size;
samples *= data->frame_size;
ppa_threaded_mainloop_lock(data->loop);
if(available+ppa_stream_readable_size(data->stream) < samples)
{
ppa_threaded_mainloop_unlock(data->loop);
alcSetError(device, ALC_INVALID_VALUE);
return;
}
available = min(available, samples);
if(available > 0)
{
ReadRingBuffer(data->ring, buffer, available/data->frame_size);
buffer = (ALubyte*)buffer + available;
samples -= available;
}
/* Capture is done in fragment-sized chunks, so we loop until we get all
* that's requested */
while(samples > 0)
{
if(ppa_stream_peek(data->stream, &buf, &length) < 0)
{
AL_PRINT("pa_stream_peek() failed: %s\n",
ppa_strerror(ppa_context_errno(data->context)));
break;
}
available = min(length, samples);
memcpy(buffer, buf, available);
buffer = (ALubyte*)buffer + available;
buf = (const ALubyte*)buf + available;
samples -= available;
length -= available;
/* Any unread data in the fragment will be lost, so save it */
length /= data->frame_size;
if(length > 0)
{
if(length > data->samples)
length = data->samples;
WriteRingBuffer(data->ring, buf, length);
}
ppa_stream_drop(data->stream);
}
ppa_threaded_mainloop_unlock(data->loop);
} //}}}
static void pulse_capture_samples(ALCdevice *device, ALCvoid *buffer, ALCuint samples) //{{{
{
pulse_data *data = device->ExtraData;
ALCuint available = RingBufferSize(data->ring);
if(available < samples)
SetALCError(ALC_INVALID_VALUE);
else
ReadRingBuffer(data->ring, buffer, samples);
} //}}}
static void pulse_capture_samples( ALCdevice* device, ALCvoid* buffer, ALCuint samples ) //{{{
{
pulse_data* data = device->ExtraData;
if ( pulse_available_samples( device ) >= samples )
{
ReadRingBuffer( data->ring, buffer, samples );
}
else
{
alcSetError( device, ALC_INVALID_VALUE );
}
} //}}}
static OSStatus ca_capture_conversion_callback(AudioConverterRef inAudioConverter, UInt32 *ioNumberDataPackets,
AudioBufferList *ioData, AudioStreamPacketDescription **outDataPacketDescription, void* inUserData)
{
ALCdevice *device = (ALCdevice*)inUserData;
ca_data *data = (ca_data*)device->ExtraData;
// Read from the ring buffer and store temporarily in a large buffer
ReadRingBuffer(data->ring, data->resampleBuffer, (ALsizei)(*ioNumberDataPackets));
// Set the input data
ioData->mNumberBuffers = 1;
ioData->mBuffers[0].mNumberChannels = data->format.mChannelsPerFrame;
ioData->mBuffers[0].mData = data->resampleBuffer;
ioData->mBuffers[0].mDataByteSize = (*ioNumberDataPackets) * data->format.mBytesPerFrame;
return noErr;
}
static ALCenum oss_capture_samples(ALCdevice *pDevice, ALCvoid *pBuffer, ALCuint lSamples)
{
oss_data *data = (oss_data*)pDevice->ExtraData;
ReadRingBuffer(data->ring, pBuffer, lSamples);
return ALC_NO_ERROR;
}
static ALCenum WinMMCaptureSamples(ALCdevice *Device, ALCvoid *Buffer, ALCuint Samples)
{
WinMMData *data = (WinMMData*)Device->ExtraData;
ReadRingBuffer(data->Ring, Buffer, Samples);
return ALC_NO_ERROR;
}
static ALCenum pa_capture_samples(ALCdevice *device, ALCvoid *buffer, ALCuint samples)
{
pa_data *data = device->ExtraData;
ReadRingBuffer(data->ring, buffer, samples);
return ALC_NO_ERROR;
}
static ALCenum DSoundCaptureSamples(ALCdevice *Device, ALCvoid *pBuffer, ALCuint lSamples)
{
DSoundCaptureData *data = Device->ExtraData;
ReadRingBuffer(data->Ring, pBuffer, lSamples);
return ALC_NO_ERROR;
}
static ALCenum WinMMCaptureSamples(ALCdevice *pDevice, ALCvoid *pBuffer, ALCuint lSamples)
{
WinMMData *pData = (WinMMData*)pDevice->ExtraData;
ReadRingBuffer(pData->pRing, pBuffer, lSamples);
return ALC_NO_ERROR;
}
static ALCenum alsa_capture_samples(ALCdevice *Device, ALCvoid *Buffer, ALCuint Samples)
{
alsa_data *data = (alsa_data*)Device->ExtraData;
if(data->ring)
{
ReadRingBuffer(data->ring, Buffer, Samples);
return ALC_NO_ERROR;
}
data->last_avail -= Samples;
while(Device->Connected && Samples > 0)
{
snd_pcm_sframes_t amt = 0;
if(data->size > 0)
{
/* First get any data stored from the last stop */
amt = snd_pcm_bytes_to_frames(data->pcmHandle, data->size);
if((snd_pcm_uframes_t)amt > Samples) amt = Samples;
amt = snd_pcm_frames_to_bytes(data->pcmHandle, amt);
memmove(Buffer, data->buffer, amt);
if(data->size > amt)
{
memmove(data->buffer, data->buffer+amt, data->size - amt);
data->size -= amt;
}
else
{
free(data->buffer);
data->buffer = NULL;
data->size = 0;
}
amt = snd_pcm_bytes_to_frames(data->pcmHandle, amt);
}
else if(data->doCapture)
amt = snd_pcm_readi(data->pcmHandle, Buffer, Samples);
if(amt < 0)
{
ERR("read error: %s\n", snd_strerror(amt));
if(amt == -EAGAIN)
continue;
if((amt=snd_pcm_recover(data->pcmHandle, amt, 1)) >= 0)
{
amt = snd_pcm_start(data->pcmHandle);
if(amt >= 0)
amt = snd_pcm_avail_update(data->pcmHandle);
}
if(amt < 0)
{
ERR("restore error: %s\n", snd_strerror(amt));
aluHandleDisconnect(Device);
break;
}
/* If the amount available is less than what's asked, we lost it
* during recovery. So just give silence instead. */
if((snd_pcm_uframes_t)amt < Samples)
break;
continue;
}
Buffer = (ALbyte*)Buffer + amt;
Samples -= amt;
}
if(Samples > 0)
memset(Buffer, ((Device->FmtType == DevFmtUByte) ? 0x80 : 0),
snd_pcm_frames_to_bytes(data->pcmHandle, Samples));
return ALC_NO_ERROR;
}
static ALCenum alsa_capture_samples(ALCdevice *Device, ALCvoid *Buffer, ALCuint Samples)
{
alsa_data *data = (alsa_data*)Device->ExtraData;
ReadRingBuffer(data->ring, Buffer, Samples);
return ALC_NO_ERROR;
}
