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75ad0c5516
These differ from the item32 converters in that they don't IQ swap, and also don't have a BE/LE version.
154 lines
8.4 KiB
C++
154 lines
8.4 KiB
C++
//
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// Copyright 2011-2012 Ettus Research LLC
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// Copyright 2018 Ettus Research, a National Instruments Company
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//
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// SPDX-License-Identifier: GPL-3.0-or-later
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//
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#include "convert_common.hpp"
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#include <uhd/utils/byteswap.hpp>
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#include <emmintrin.h>
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using namespace uhd::convert;
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DECLARE_CONVERTER(fc64, 1, sc16_item32_le, 1, PRIORITY_SIMD)
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{
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const fc64_t* input = reinterpret_cast<const fc64_t*>(inputs[0]);
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item32_t* output = reinterpret_cast<item32_t*>(outputs[0]);
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const __m128d scalar = _mm_set1_pd(scale_factor);
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#define convert_fc64_1_to_item32_1_nswap_guts(_al_) \
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for (; i + 3 < nsamps; i += 4) { \
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/* load from input */ \
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__m128d tmp0 = \
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_mm_load##_al_##pd(reinterpret_cast<const double*>(input + i + 0)); \
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__m128d tmp1 = \
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_mm_load##_al_##pd(reinterpret_cast<const double*>(input + i + 1)); \
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__m128d tmp2 = \
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_mm_load##_al_##pd(reinterpret_cast<const double*>(input + i + 2)); \
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__m128d tmp3 = \
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_mm_load##_al_##pd(reinterpret_cast<const double*>(input + i + 3)); \
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\
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/* convert and scale */ \
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__m128i tmpi0 = _mm_cvttpd_epi32(_mm_mul_pd(tmp0, scalar)); \
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__m128i tmpi1 = _mm_cvttpd_epi32(_mm_mul_pd(tmp1, scalar)); \
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__m128i tmpilo = _mm_unpacklo_epi64(tmpi0, tmpi1); \
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__m128i tmpi2 = _mm_cvttpd_epi32(_mm_mul_pd(tmp2, scalar)); \
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__m128i tmpi3 = _mm_cvttpd_epi32(_mm_mul_pd(tmp3, scalar)); \
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__m128i tmpihi = _mm_unpacklo_epi64(tmpi2, tmpi3); \
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\
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/* pack + swap 16-bit pairs */ \
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__m128i tmpi = _mm_packs_epi32(tmpilo, tmpihi); \
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tmpi = _mm_shufflelo_epi16(tmpi, _MM_SHUFFLE(2, 3, 0, 1)); \
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tmpi = _mm_shufflehi_epi16(tmpi, _MM_SHUFFLE(2, 3, 0, 1)); \
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\
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/* store to output */ \
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_mm_storeu_si128(reinterpret_cast<__m128i*>(output + i), tmpi); \
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}
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size_t i = 0;
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// dispatch according to alignment
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if ((size_t(input) & 0xf) == 0) {
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convert_fc64_1_to_item32_1_nswap_guts(_)
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} else {
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convert_fc64_1_to_item32_1_nswap_guts(u_)
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}
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// convert remainder
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xx_to_item32_sc16<uhd::htowx>(input + i, output + i, nsamps - i, scale_factor);
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}
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DECLARE_CONVERTER(fc64, 1, sc16_item32_be, 1, PRIORITY_SIMD)
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{
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const fc64_t* input = reinterpret_cast<const fc64_t*>(inputs[0]);
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item32_t* output = reinterpret_cast<item32_t*>(outputs[0]);
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const __m128d scalar = _mm_set1_pd(scale_factor);
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#define convert_fc64_1_to_item32_1_bswap_guts(_al_) \
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for (; i + 3 < nsamps; i += 4) { \
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/* load from input */ \
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__m128d tmp0 = \
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_mm_load##_al_##pd(reinterpret_cast<const double*>(input + i + 0)); \
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__m128d tmp1 = \
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_mm_load##_al_##pd(reinterpret_cast<const double*>(input + i + 1)); \
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__m128d tmp2 = \
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_mm_load##_al_##pd(reinterpret_cast<const double*>(input + i + 2)); \
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__m128d tmp3 = \
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_mm_load##_al_##pd(reinterpret_cast<const double*>(input + i + 3)); \
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\
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/* convert and scale */ \
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__m128i tmpi0 = _mm_cvttpd_epi32(_mm_mul_pd(tmp0, scalar)); \
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__m128i tmpi1 = _mm_cvttpd_epi32(_mm_mul_pd(tmp1, scalar)); \
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__m128i tmpilo = _mm_unpacklo_epi64(tmpi0, tmpi1); \
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__m128i tmpi2 = _mm_cvttpd_epi32(_mm_mul_pd(tmp2, scalar)); \
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__m128i tmpi3 = _mm_cvttpd_epi32(_mm_mul_pd(tmp3, scalar)); \
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__m128i tmpihi = _mm_unpacklo_epi64(tmpi2, tmpi3); \
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\
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/* pack + byteswap -> byteswap 16 bit words */ \
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__m128i tmpi = _mm_packs_epi32(tmpilo, tmpihi); \
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tmpi = _mm_or_si128(_mm_srli_epi16(tmpi, 8), _mm_slli_epi16(tmpi, 8)); \
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\
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/* store to output */ \
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_mm_storeu_si128(reinterpret_cast<__m128i*>(output + i), tmpi); \
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}
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size_t i = 0;
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// dispatch according to alignment
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if ((size_t(input) & 0xf) == 0) {
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convert_fc64_1_to_item32_1_bswap_guts(_)
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} else {
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convert_fc64_1_to_item32_1_bswap_guts(u_)
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}
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// convert remainder
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xx_to_item32_sc16<uhd::htonx>(input + i, output + i, nsamps - i, scale_factor);
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}
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DECLARE_CONVERTER(fc64, 1, sc16_chdr, 1, PRIORITY_SIMD)
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{
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const fc64_t* input = reinterpret_cast<const fc64_t*>(inputs[0]);
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sc16_t* output = reinterpret_cast<sc16_t*>(outputs[0]);
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const __m128d scalar = _mm_set1_pd(scale_factor);
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#define convert_fc64_1_to_chdr_1_guts(_al_) \
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for (; i + 3 < nsamps; i += 4) { \
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/* load from input */ \
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__m128d tmp0 = \
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_mm_load##_al_##pd(reinterpret_cast<const double*>(input + i + 0)); \
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__m128d tmp1 = \
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_mm_load##_al_##pd(reinterpret_cast<const double*>(input + i + 1)); \
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__m128d tmp2 = \
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_mm_load##_al_##pd(reinterpret_cast<const double*>(input + i + 2)); \
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__m128d tmp3 = \
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_mm_load##_al_##pd(reinterpret_cast<const double*>(input + i + 3)); \
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\
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/* convert and scale */ \
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__m128i tmpi0 = _mm_cvttpd_epi32(_mm_mul_pd(tmp0, scalar)); \
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__m128i tmpi1 = _mm_cvttpd_epi32(_mm_mul_pd(tmp1, scalar)); \
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__m128i tmpilo = _mm_unpacklo_epi64(tmpi0, tmpi1); \
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__m128i tmpi2 = _mm_cvttpd_epi32(_mm_mul_pd(tmp2, scalar)); \
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__m128i tmpi3 = _mm_cvttpd_epi32(_mm_mul_pd(tmp3, scalar)); \
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__m128i tmpihi = _mm_unpacklo_epi64(tmpi2, tmpi3); \
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\
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/* store to output */ \
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_mm_storeu_si128( \
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reinterpret_cast<__m128i*>(output + i), _mm_packs_epi32(tmpilo, tmpihi)); \
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}
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size_t i = 0;
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// dispatch according to alignment
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if ((size_t(input) & 0xf) == 0) {
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convert_fc64_1_to_chdr_1_guts(_)
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} else {
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convert_fc64_1_to_chdr_1_guts(u_)
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}
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// convert remainder
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xx_to_chdr_sc16(input + i, output + i, nsamps - i, scale_factor);
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}
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