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Diffstat (limited to 'volk/kernels/volk/volk_32fc_s32f_deinterleave_real_16i.h')
-rw-r--r-- | volk/kernels/volk/volk_32fc_s32f_deinterleave_real_16i.h | 81 |
1 files changed, 81 insertions, 0 deletions
diff --git a/volk/kernels/volk/volk_32fc_s32f_deinterleave_real_16i.h b/volk/kernels/volk/volk_32fc_s32f_deinterleave_real_16i.h new file mode 100644 index 000000000..9e10217a0 --- /dev/null +++ b/volk/kernels/volk/volk_32fc_s32f_deinterleave_real_16i.h @@ -0,0 +1,81 @@ +#ifndef INCLUDED_volk_32fc_s32f_deinterleave_real_16i_a_H +#define INCLUDED_volk_32fc_s32f_deinterleave_real_16i_a_H + +#include <volk/volk_common.h> +#include <inttypes.h> +#include <stdio.h> + +#ifdef LV_HAVE_SSE +#include <xmmintrin.h> +/*! + \brief Deinterleaves the complex vector, multiply the value by the scalar, convert to 16t, and in I vector data + \param complexVector The complex input vector + \param scalar The value to be multiply against each of the input values + \param iBuffer The I buffer output data + \param num_points The number of complex data values to be deinterleaved +*/ +static inline void volk_32fc_s32f_deinterleave_real_16i_a_sse(int16_t* iBuffer, const lv_32fc_t* complexVector, const float scalar, unsigned int num_points){ + unsigned int number = 0; + const unsigned int quarterPoints = num_points / 4; + + const float* complexVectorPtr = (float*)complexVector; + int16_t* iBufferPtr = iBuffer; + + __m128 vScalar = _mm_set_ps1(scalar); + + __m128 cplxValue1, cplxValue2, iValue; + + __VOLK_ATTR_ALIGNED(16) float floatBuffer[4]; + + for(;number < quarterPoints; number++){ + cplxValue1 = _mm_load_ps(complexVectorPtr); + complexVectorPtr += 4; + + cplxValue2 = _mm_load_ps(complexVectorPtr); + complexVectorPtr += 4; + + // Arrange in i1i2i3i4 format + iValue = _mm_shuffle_ps(cplxValue1, cplxValue2, _MM_SHUFFLE(2,0,2,0)); + + iValue = _mm_mul_ps(iValue, vScalar); + + _mm_store_ps(floatBuffer, iValue); + *iBufferPtr++ = (int16_t)(floatBuffer[0]); + *iBufferPtr++ = (int16_t)(floatBuffer[1]); + *iBufferPtr++ = (int16_t)(floatBuffer[2]); + *iBufferPtr++ = (int16_t)(floatBuffer[3]); + } + + number = quarterPoints * 4; + iBufferPtr = &iBuffer[number]; + for(; number < num_points; number++){ + *iBufferPtr++ = (int16_t)(*complexVectorPtr++ * scalar); + complexVectorPtr++; + } +} +#endif /* LV_HAVE_SSE */ + +#ifdef LV_HAVE_GENERIC +/*! + \brief Deinterleaves the complex vector, multiply the value by the scalar, convert to 16t, and in I vector data + \param complexVector The complex input vector + \param scalar The value to be multiply against each of the input values + \param iBuffer The I buffer output data + \param num_points The number of complex data values to be deinterleaved +*/ +static inline void volk_32fc_s32f_deinterleave_real_16i_generic(int16_t* iBuffer, const lv_32fc_t* complexVector, const float scalar, unsigned int num_points){ + const float* complexVectorPtr = (float*)complexVector; + int16_t* iBufferPtr = iBuffer; + unsigned int number = 0; + for(number = 0; number < num_points; number++){ + *iBufferPtr++ = (int16_t)(*complexVectorPtr++ * scalar); + complexVectorPtr++; + } + +} +#endif /* LV_HAVE_GENERIC */ + + + + +#endif /* INCLUDED_volk_32fc_s32f_deinterleave_real_16i_a_H */ |