diff options
Diffstat (limited to 'host/lib/convert/sse2_fc64_to_sc16.cpp')
| -rw-r--r-- | host/lib/convert/sse2_fc64_to_sc16.cpp | 111 |
1 files changed, 111 insertions, 0 deletions
diff --git a/host/lib/convert/sse2_fc64_to_sc16.cpp b/host/lib/convert/sse2_fc64_to_sc16.cpp new file mode 100644 index 000000000..f030e9168 --- /dev/null +++ b/host/lib/convert/sse2_fc64_to_sc16.cpp @@ -0,0 +1,111 @@ +// +// 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); +} |