#include <xdc/std.h>

#include "dbgCapAf.h"

#ifdef _TMS320C6X
#pragma DATA_SECTION(gCapAfBuf, ".gCapAfBuf");
PAF_AudioData gCapAfBuf[CAP_AF_MAX_NUM_SAMP];
#else
PAF_AudioData gCapAfBuf[CAP_AF_MAX_NUM_SAMP] __attribute__ ((section(".gCapAfBuf")));
//PAF_AudioData gCapAfBuf[CAP_AF_MAX_NUM_SAMP] __attribute__ ((section(".noinit")));
#endif
Int32 gCapAfBufIdx=0;
Int32 gCapAfBufWrapCnt=0;

// Reset audio frame capture buffer
Int capAfReset(Void)
{
    gCapAfBufIdx = 0;
    gCapAfBufWrapCnt = 0;

    return 0;
}

// Write audio frame to capture buffer
Int capAfWrite(
    PAF_AudioFrame *pAf,    // audio frame
    Int8 chNum              // channel number to capture
)
{
    Int16 nSamp;
    PAF_AudioData *pSamp;
    Int16 i;
    
    if (chNum > (pAf->data.nChannels-1))
    {
        return CAP_AF_INV_CHNUM;
    }
    
    nSamp = pAf->data.nSamples;
    pSamp = pAf->data.sample[chNum];

    if ((CAP_AF_MAX_NUM_SAMP - gCapAfBufIdx) < nSamp)
    {
        //return;
        gCapAfBufIdx = 0;
        gCapAfBufWrapCnt++;
    }
    
    for (i=0; i<nSamp; i++)
    {
        gCapAfBuf[gCapAfBufIdx] = *pSamp;
        pSamp++;
        gCapAfBufIdx++;
    }
    
    return CAP_AF_SOK;
}