static void pa_close_capture(ALCdevice *device)
{
pa_data *data = (pa_data*)device->ExtraData;
PaError err;
err = pPa_CloseStream(data->stream);
if(err != paNoError)
AL_PRINT("Error closing stream: %s\n", pPa_GetErrorText(err));
free(data);
device->ExtraData = NULL;
}
static void pa_close_playback(ALCdevice *device)
{
pa_data *data = (pa_data*)device->ExtraData;
PaError err;
err = pPa_StopStream(data->stream);
if(err != paNoError)
fprintf(stderr, "Error stopping stream: %s\n", pPa_GetErrorText(err));
err = pPa_CloseStream(data->stream);
if(err != paNoError)
fprintf(stderr, "Error closing stream: %s\n", pPa_GetErrorText(err));
free(data);
device->ExtraData = NULL;
pa_unload();
}
static ALCboolean pa_open_playback(ALCdevice *device, const ALCchar *deviceName)
{
const PaStreamInfo *streamInfo;
PaStreamParameters outParams;
pa_data *data;
PaError err;
if(!deviceName)
deviceName = pa_device;
else if(strcmp(deviceName, pa_device) != 0)
return ALC_FALSE;
pa_load();
if(pa_handle == NULL)
return ALC_FALSE;
data = (pa_data*)calloc(1, sizeof(pa_data));
device->ExtraData = data;
outParams.device = GetConfigValueInt("port", "device", -1);
if(outParams.device < 0)
outParams.device = pPa_GetDefaultOutputDevice();
outParams.suggestedLatency = (device->UpdateSize*device->NumUpdates) /
(float)device->Frequency;
outParams.hostApiSpecificStreamInfo = NULL;
switch(aluBytesFromFormat(device->Format))
{
case 1:
outParams.sampleFormat = paUInt8;
break;
case 2:
outParams.sampleFormat = paInt16;
break;
case 4:
outParams.sampleFormat = paFloat32;
break;
default:
AL_PRINT("Unknown format: 0x%x\n", device->Format);
device->ExtraData = NULL;
free(data);
pa_unload();
return ALC_FALSE;
}
outParams.channelCount = aluChannelsFromFormat(device->Format);
err = pPa_OpenStream(&data->stream, NULL, &outParams, device->Frequency,
device->UpdateSize, paNoFlag, pa_callback, device);
if(err != paNoError)
{
AL_PRINT("Pa_OpenStream() returned an error: %s\n", pPa_GetErrorText(err));
device->ExtraData = NULL;
free(data);
pa_unload();
return ALC_FALSE;
}
streamInfo = pPa_GetStreamInfo(data->stream);
err = pPa_StartStream(data->stream);
if(err != paNoError)
{
AL_PRINT("Pa_StartStream() returned an error: %s\n", pPa_GetErrorText(err));
pPa_CloseStream(data->stream);
device->ExtraData = NULL;
free(data);
pa_unload();
return ALC_FALSE;
}
device->szDeviceName = strdup(deviceName);
device->Frequency = streamInfo->sampleRate;
return ALC_TRUE;
}
