volk_32fc_deinterleave_64f_x2_a.h

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#ifndef INCLUDED_volk_32fc_deinterleave_64f_x2_a_H
#define INCLUDED_volk_32fc_deinterleave_64f_x2_a_H

#include <inttypes.h>
#include <stdio.h>

#ifdef LV_HAVE_SSE2
#include <emmintrin.h>
/*!
  \brief Deinterleaves the lv_32fc_t vector into double I & Q vector data
  \param complexVector The complex input vector
  \param iBuffer The I buffer output data
  \param qBuffer The Q buffer output data
  \param num_points The number of complex data values to be deinterleaved
*/
static inline void volk_32fc_deinterleave_64f_x2_a_sse2(double* iBuffer, double* qBuffer, const lv_32fc_t* complexVector, unsigned int num_points){
  unsigned int number = 0;

    const float* complexVectorPtr = (float*)complexVector;
    double* iBufferPtr = iBuffer;
    double* qBufferPtr = qBuffer;

    const unsigned int halfPoints = num_points / 2;
    __m128 cplxValue, fVal;
    __m128d dVal;

    for(;number < halfPoints; number++){

      cplxValue = _mm_load_ps(complexVectorPtr);
      complexVectorPtr += 4;

      // Arrange in i1i2i1i2 format
      fVal = _mm_shuffle_ps(cplxValue, cplxValue, _MM_SHUFFLE(2,0,2,0));
      dVal = _mm_cvtps_pd(fVal);
      _mm_store_pd(iBufferPtr, dVal);

      // Arrange in q1q2q1q2 format
      fVal = _mm_shuffle_ps(cplxValue, cplxValue, _MM_SHUFFLE(3,1,3,1));
      dVal = _mm_cvtps_pd(fVal);
      _mm_store_pd(qBufferPtr, dVal);

      iBufferPtr += 2;
      qBufferPtr += 2;
    }

    number = halfPoints * 2;
    for(; number < num_points; number++){
      *iBufferPtr++ = *complexVectorPtr++;
      *qBufferPtr++ = *complexVectorPtr++;
    }
}
#endif /* LV_HAVE_SSE */

#ifdef LV_HAVE_GENERIC
/*!
  \brief Deinterleaves the lv_32fc_t vector into double I & Q vector data
  \param complexVector The complex input vector
  \param iBuffer The I buffer output data
  \param qBuffer The Q buffer output data
  \param num_points The number of complex data values to be deinterleaved
*/
static inline void volk_32fc_deinterleave_64f_x2_a_generic(double* iBuffer, double* qBuffer, const lv_32fc_t* complexVector, unsigned int num_points){
  unsigned int number = 0;
  const float* complexVectorPtr = (float*)complexVector;
  double* iBufferPtr = iBuffer;
  double* qBufferPtr = qBuffer;

  for(number = 0; number < num_points; number++){
    *iBufferPtr++ = (double)*complexVectorPtr++;
    *qBufferPtr++ = (double)*complexVectorPtr++;
  }
}
#endif /* LV_HAVE_GENERIC */




#endif /* INCLUDED_volk_32fc_deinterleave_64f_x2_a_H */