/***************************************************************************
** Return elements written. */
ring_buffer_size_t PaUtil_WriteRingBuffer( PaUtilRingBuffer *rbuf, const void *data, ring_buffer_size_t elementCount, const int hopsize, const int offset )
{
ring_buffer_size_t size1, size2, numWritten;
void *data1, *data2;
numWritten = PaUtil_GetRingBufferWriteRegions( rbuf, elementCount, &data1, &size1, &data2, &size2 );
if(hopsize == 1) {
if( size2 > 0 )
{
memcpy( data1, data, size1*rbuf->elementSizeBytes );
data = ((char *)data) + size1*rbuf->elementSizeBytes;
memcpy( data2, data, size2*rbuf->elementSizeBytes );
}
else
{
memcpy( data1, data, size1*rbuf->elementSizeBytes );
}
} else {
int i, j, k;
data = ((char *)data) + offset*rbuf->elementSizeBytes;
if( size2 > 0) {
for(i = 0; i < size1; i++) {
for(k = 0; k < rbuf->elementSizeBytes; k++) {
((char *)data1)[i*rbuf->elementSizeBytes+k] = ((char *)data)[i*rbuf->elementSizeBytes*hopsize+k];
}
}
data = ((char *)data) + size1*rbuf->elementSizeBytes;
for(j = 0; j < size2; j++) {
for(k = 0; k < rbuf->elementSizeBytes; k++) {
((char *)data2)[j*rbuf->elementSizeBytes+k] = ((char *)data)[j*rbuf->elementSizeBytes*hopsize+k];
}
}
} else {
for(i = 0; i < size1; i++) {
for(k = 0; k < rbuf->elementSizeBytes; k++) {
((char *)data1)[i*rbuf->elementSizeBytes+k] = ((char *)data)[i*rbuf->elementSizeBytes*hopsize+k];
}
}
}
}
PaUtil_AdvanceRingBufferWriteIndex( rbuf, numWritten );
return numWritten;
}
/* This should be called after stopping or aborting the stream, so that on next
start, the buffers will be ready. */
PaError resetBlioRingBuffers( PaMacBlio *blio )
{
#ifdef PA_MAC__BLIO_MUTEX
int result;
#endif
blio->statusFlags = 0;
if( blio->outputRingBuffer.buffer ) {
PaUtil_FlushRingBuffer( &blio->outputRingBuffer );
bzero( blio->outputRingBuffer.buffer,
blio->outputRingBuffer.bufferSize );
/* Advance buffer */
PaUtil_AdvanceRingBufferWriteIndex( &blio->outputRingBuffer, blio->ringBufferFrames*blio->outputSampleSizeActual*blio->outChan );
//PaUtil_AdvanceRingBufferWriteIndex( &blio->outputRingBuffer, blio->outputRingBuffer.bufferSize );
/* Update isOutputFull. */
#ifdef PA_MAC__BLIO_MUTEX
result = blioSetIsOutputFull( blio, toAdvance == blio->outputRingBuffer.bufferSize );
if( result )
goto error;
#endif
/*
printf( "------%d\n" , blio->framesPerBuffer );
printf( "------%d\n" , blio->outChan );
printf( "------%d\n" , blio->outputSampleSize );
printf( "------%d\n" , blio->framesPerBuffer*blio->outChan*blio->outputSampleSize );
*/
}
if( blio->inputRingBuffer.buffer ) {
PaUtil_FlushRingBuffer( &blio->inputRingBuffer );
bzero( blio->inputRingBuffer.buffer,
blio->inputRingBuffer.bufferSize );
/* Update isInputEmpty. */
#ifdef PA_MAC__BLIO_MUTEX
result = blioSetIsInputEmpty( blio, true );
if( result )
goto error;
#endif
}
return paNoError;
#ifdef PA_MAC__BLIO_MUTEX
error:
return result;
#endif
}
/***************************************************************************
** Return elements written. */
ring_buffer_size_t PaUtil_WriteRingBuffer( PaUtilRingBuffer *rbuf, const void *data, ring_buffer_size_t elementCount )
{
ring_buffer_size_t size1, size2, numWritten;
void *data1, *data2;
numWritten = PaUtil_GetRingBufferWriteRegions( rbuf, elementCount, &data1, &size1, &data2, &size2 );
if( size2 > 0 )
{
memcpy( data1, data, size1*rbuf->elementSizeBytes );
data = ((char *)data) + size1*rbuf->elementSizeBytes;
memcpy( data2, data, size2*rbuf->elementSizeBytes );
}
else
{
memcpy( data1, data, size1*rbuf->elementSizeBytes );
}
PaUtil_AdvanceRingBufferWriteIndex( rbuf, numWritten );
return numWritten;
}
/***************************************************************************
** Return bytes written. */
long PaUtil_WriteRingBuffer( PaUtilRingBuffer *rbuf, const void *data, long numBytes )
{
long size1, size2, numWritten;
void *data1, *data2;
numWritten = PaUtil_GetRingBufferWriteRegions( rbuf, numBytes, &data1, &size1, &data2, &size2 );
if( size2 > 0 )
{
memcpy( data1, data, size1 );
data = ((char *)data) + size1;
memcpy( data2, data, size2 );
}
else
{
memcpy( data1, data, size1 );
}
PaUtil_AdvanceRingBufferWriteIndex( rbuf, numWritten );
return numWritten;
}