PaError CloseAudioStream( PABLIO_Stream *aStream )
{
PaError err;
int bytesEmpty;
int byteSize = aStream->outFIFO.bufferSize;
/* If we are writing data, make sure we play everything written. */
if( byteSize > 0 )
{
bytesEmpty = RingBuffer_GetWriteAvailable( &aStream->outFIFO );
while( bytesEmpty < byteSize )
{
NPa_Sleep( 10 ); /* MSP */
bytesEmpty = RingBuffer_GetWriteAvailable( &aStream->outFIFO );
}
}
err = Pa_StopStream( aStream->stream );
if( err != paNoError ) goto error;
err = Pa_CloseStream( aStream->stream );
if( err != paNoError ) goto error;
Pa_Terminate();
error:
PABLIO_TermFIFO( &aStream->inFIFO );
PABLIO_TermFIFO( &aStream->outFIFO );
free( aStream );
return err;
}
/************************************************************
* Read data from ring buffer.
* Will not return until all the data has been read.
*/
long ReadAudioStream( PABLIO_Stream *aStream, void *data, long numFrames )
{
long bytesRead;
char *p = (char *) data;
long numBytes = aStream->inbytesPerFrame * numFrames;
while( numBytes > 0)
{
bytesRead = RingBuffer_Read( &aStream->inFIFO, p, numBytes );
numBytes -= bytesRead;
p += bytesRead;
if( numBytes > 0) NPa_Sleep(10); /* MSP */
}
return numFrames;
}
/************************************************************
* Write data to ring buffer.
* Will not return until all the data has been written.
*/
long WriteAudioStream( PABLIO_Stream *aStream, void *data, long numFrames )
{
long bytesWritten;
char *p = (char *) data;
long numBytes = aStream->outbytesPerFrame * numFrames;
while( numBytes > 0)
{
bytesWritten = sys_ringbuf_Write( &aStream->outFIFO, p, numBytes );
numBytes -= bytesWritten;
p += bytesWritten;
if( numBytes > 0) NPa_Sleep(10); /* MSP */
}
return numFrames;
}
/*
* This is called at different times to blockingIOCallback. Always seems to write 512 bytes
*/
long WriteAudioStream( PABLIO_Stream *aStream, void *data, long numFrames )
{
long bytesWritten;
char *p = (char *) data;
long numBytes = aStream->outbytesPerFrame * numFrames;
// printf("s_audio_pablio.c: WriteAudioStream. writing %i \n", numBytes );
while( numBytes > 0)
{
bytesWritten = RingBuffer_Write( &aStream->outFIFO, p, numBytes );
numBytes -= bytesWritten;
p += bytesWritten;
if( numBytes > 0) NPa_Sleep(10); /* MSP */
}
return numFrames;
}
