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//
// Copyright 2011-2012 Ettus Research LLC
//
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program. If not, see <http://www.gnu.org/licenses/>.
//
#include "convert_common.hpp"
#include <uhd/utils/byteswap.hpp>
#include <emmintrin.h>
using namespace uhd::convert;
DECLARE_CONVERTER(fc64, 1, sc16_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_item32_1_nswap_guts(_al_) \
for (; i+3 < nsamps; i+=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)); \
\
/* convert and scale */ \
__m128i tmpi0 = _mm_cvttpd_epi32(_mm_mul_pd(tmp0, scalar)); \
__m128i tmpi1 = _mm_cvttpd_epi32(_mm_mul_pd(tmp1, scalar)); \
__m128i tmpilo = _mm_unpacklo_epi64(tmpi0, tmpi1); \
__m128i tmpi2 = _mm_cvttpd_epi32(_mm_mul_pd(tmp2, scalar)); \
__m128i tmpi3 = _mm_cvttpd_epi32(_mm_mul_pd(tmp3, scalar)); \
__m128i tmpihi = _mm_unpacklo_epi64(tmpi2, tmpi3); \
\
/* pack + swap 16-bit pairs */ \
__m128i tmpi = _mm_packs_epi32(tmpilo, tmpihi); \
tmpi = _mm_shufflelo_epi16(tmpi, _MM_SHUFFLE(2, 3, 0, 1)); \
tmpi = _mm_shufflehi_epi16(tmpi, _MM_SHUFFLE(2, 3, 0, 1)); \
\
/* store to output */ \
_mm_storeu_si128(reinterpret_cast<__m128i *>(output+i), tmpi); \
} \
size_t i = 0;
//dispatch according to alignment
if ((size_t(input) & 0xf) == 0){
convert_fc64_1_to_item32_1_nswap_guts(_)
}
else{
convert_fc64_1_to_item32_1_nswap_guts(u_)
}
//convert remainder
xx_to_item32_sc16<uhd::htowx>(input+i, output+i, nsamps-i, scale_factor);
}
DECLARE_CONVERTER(fc64, 1, sc16_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_item32_1_bswap_guts(_al_) \
for (; i+3 < nsamps; i+=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)); \
\
/* convert and scale */ \
__m128i tmpi0 = _mm_cvttpd_epi32(_mm_mul_pd(tmp0, scalar)); \
__m128i tmpi1 = _mm_cvttpd_epi32(_mm_mul_pd(tmp1, scalar)); \
__m128i tmpilo = _mm_unpacklo_epi64(tmpi0, tmpi1); \
__m128i tmpi2 = _mm_cvttpd_epi32(_mm_mul_pd(tmp2, scalar)); \
__m128i tmpi3 = _mm_cvttpd_epi32(_mm_mul_pd(tmp3, scalar)); \
__m128i tmpihi = _mm_unpacklo_epi64(tmpi2, tmpi3); \
\
/* pack + byteswap -> byteswap 16 bit words */ \
__m128i tmpi = _mm_packs_epi32(tmpilo, tmpihi); \
tmpi = _mm_or_si128(_mm_srli_epi16(tmpi, 8), _mm_slli_epi16(tmpi, 8)); \
\
/* store to output */ \
_mm_storeu_si128(reinterpret_cast<__m128i *>(output+i), tmpi); \
} \
size_t i = 0;
//dispatch according to alignment
if ((size_t(input) & 0xf) == 0){
convert_fc64_1_to_item32_1_bswap_guts(_)
}
else{
convert_fc64_1_to_item32_1_bswap_guts(u_)
}
//convert remainder
xx_to_item32_sc16<uhd::htonx>(input+i, output+i, nsamps-i, scale_factor);
}
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