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//
// Copyright 2012-2013 Ettus Research LLC
// Copyright 2018 Ettus Research, a National Instruments Company
//
// SPDX-License-Identifier: GPL-3.0-or-later
//
#include "convert_common.hpp"
#include <uhd/utils/byteswap.hpp>
#include <emmintrin.h>
using namespace uhd::convert;
UHD_INLINE __m128i pack_sc8_item32_4x(
const __m128i& in0, const __m128i& in1, const __m128i& in2, const __m128i& in3)
{
const __m128i lo = _mm_packs_epi32(in0, in1);
const __m128i hi = _mm_packs_epi32(in2, in3);
return _mm_packs_epi16(lo, hi);
}
UHD_INLINE __m128i pack_sc32_4x(
const __m128d& lo, const __m128d& hi, const __m128d& scalar)
{
const __m128i tmpi_lo = _mm_cvttpd_epi32(_mm_mul_pd(hi, scalar));
const __m128i tmpi_hi = _mm_cvttpd_epi32(_mm_mul_pd(lo, scalar));
return _mm_unpacklo_epi64(tmpi_lo, tmpi_hi);
}
DECLARE_CONVERTER(fc64, 1, sc8_item32_be, 1, PRIORITY_SIMD)
{
const fc64_t* input = reinterpret_cast<const fc64_t*>(inputs[0]);
item32_t* output = reinterpret_cast<item32_t*>(outputs[0]);
const __m128d scalar = _mm_set1_pd(scale_factor);
#define convert_fc64_1_to_sc8_item32_1_bswap_guts(_al_) \
for (size_t j = 0; i + 7 < nsamps; i += 8, j += 4) { \
/* load from input */ \
__m128d tmp0 = \
_mm_load##_al_##pd(reinterpret_cast<const double*>(input + i + 0)); \
__m128d tmp1 = \
_mm_load##_al_##pd(reinterpret_cast<const double*>(input + i + 1)); \
__m128d tmp2 = \
_mm_load##_al_##pd(reinterpret_cast<const double*>(input + i + 2)); \
__m128d tmp3 = \
_mm_load##_al_##pd(reinterpret_cast<const double*>(input + i + 3)); \
__m128d tmp4 = \
_mm_load##_al_##pd(reinterpret_cast<const double*>(input + i + 4)); \
__m128d tmp5 = \
_mm_load##_al_##pd(reinterpret_cast<const double*>(input + i + 5)); \
__m128d tmp6 = \
_mm_load##_al_##pd(reinterpret_cast<const double*>(input + i + 6)); \
__m128d tmp7 = \
_mm_load##_al_##pd(reinterpret_cast<const double*>(input + i + 7)); \
\
/* interleave */ \
const __m128i tmpi = pack_sc8_item32_4x(pack_sc32_4x(tmp1, tmp0, scalar), \
pack_sc32_4x(tmp3, tmp2, scalar), \
pack_sc32_4x(tmp5, tmp4, scalar), \
pack_sc32_4x(tmp7, tmp6, scalar)); \
\
/* store to output */ \
_mm_storeu_si128(reinterpret_cast<__m128i*>(output + j), tmpi); \
}
size_t i = 0;
// dispatch according to alignment
if ((size_t(input) & 0xf) == 0) {
convert_fc64_1_to_sc8_item32_1_bswap_guts(_)
} else {
convert_fc64_1_to_sc8_item32_1_bswap_guts(u_)
}
// convert remainder
xx_to_item32_sc8<uhd::htonx>(input + i, output + (i / 2), nsamps - i, scale_factor);
}
DECLARE_CONVERTER(fc64, 1, sc8_item32_le, 1, PRIORITY_SIMD)
{
const fc64_t* input = reinterpret_cast<const fc64_t*>(inputs[0]);
item32_t* output = reinterpret_cast<item32_t*>(outputs[0]);
const __m128d scalar = _mm_set1_pd(scale_factor);
#define convert_fc64_1_to_sc8_item32_1_nswap_guts(_al_) \
for (size_t j = 0; i + 7 < nsamps; i += 8, j += 4) { \
/* load from input */ \
__m128d tmp0 = \
_mm_load##_al_##pd(reinterpret_cast<const double*>(input + i + 0)); \
__m128d tmp1 = \
_mm_load##_al_##pd(reinterpret_cast<const double*>(input + i + 1)); \
__m128d tmp2 = \
_mm_load##_al_##pd(reinterpret_cast<const double*>(input + i + 2)); \
__m128d tmp3 = \
_mm_load##_al_##pd(reinterpret_cast<const double*>(input + i + 3)); \
__m128d tmp4 = \
_mm_load##_al_##pd(reinterpret_cast<const double*>(input + i + 4)); \
__m128d tmp5 = \
_mm_load##_al_##pd(reinterpret_cast<const double*>(input + i + 5)); \
__m128d tmp6 = \
_mm_load##_al_##pd(reinterpret_cast<const double*>(input + i + 6)); \
__m128d tmp7 = \
_mm_load##_al_##pd(reinterpret_cast<const double*>(input + i + 7)); \
\
/* interleave */ \
__m128i tmpi = pack_sc8_item32_4x(pack_sc32_4x(tmp0, tmp1, scalar), \
pack_sc32_4x(tmp2, tmp3, scalar), \
pack_sc32_4x(tmp4, tmp5, scalar), \
pack_sc32_4x(tmp6, tmp7, scalar)); \
tmpi = \
_mm_or_si128(_mm_srli_epi16(tmpi, 8), _mm_slli_epi16(tmpi, 8)); /*byteswap*/ \
\
/* store to output */ \
_mm_storeu_si128(reinterpret_cast<__m128i*>(output + j), tmpi); \
}
size_t i = 0;
// dispatch according to alignment
if ((size_t(input) & 0xf) == 0) {
convert_fc64_1_to_sc8_item32_1_nswap_guts(_)
} else {
convert_fc64_1_to_sc8_item32_1_nswap_guts(u_)
}
// convert remainder
xx_to_item32_sc8<uhd::htowx>(input + i, output + (i / 2), nsamps - i, scale_factor);
}
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