diff options
Diffstat (limited to 'host/lib/convert/sse2_fc32_to_sc8.cpp')
| -rw-r--r-- | host/lib/convert/sse2_fc32_to_sc8.cpp | 115 |
1 files changed, 115 insertions, 0 deletions
diff --git a/host/lib/convert/sse2_fc32_to_sc8.cpp b/host/lib/convert/sse2_fc32_to_sc8.cpp new file mode 100644 index 000000000..dd884640d --- /dev/null +++ b/host/lib/convert/sse2_fc32_to_sc8.cpp @@ -0,0 +1,115 @@ +// +// Copyright 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; + +template <const int shuf> +UHD_INLINE __m128i pack_sc32_4x( + const __m128 &in0, const __m128 &in1, + const __m128 &in2, const __m128 &in3, + const __m128 &scalar +){ + __m128i tmpi0 = _mm_cvtps_epi32(_mm_mul_ps(in0, scalar)); + tmpi0 = _mm_shuffle_epi32(tmpi0, shuf); + __m128i tmpi1 = _mm_cvtps_epi32(_mm_mul_ps(in1, scalar)); + tmpi1 = _mm_shuffle_epi32(tmpi1, shuf); + const __m128i lo = _mm_packs_epi32(tmpi0, tmpi1); + + __m128i tmpi2 = _mm_cvtps_epi32(_mm_mul_ps(in2, scalar)); + tmpi2 = _mm_shuffle_epi32(tmpi2, shuf); + __m128i tmpi3 = _mm_cvtps_epi32(_mm_mul_ps(in3, scalar)); + tmpi3 = _mm_shuffle_epi32(tmpi3, shuf); + const __m128i hi = _mm_packs_epi32(tmpi2, tmpi3); + + return _mm_packs_epi16(lo, hi); +} + +DECLARE_CONVERTER(fc32, 1, sc8_item32_be, 1, PRIORITY_SIMD){ + const fc32_t *input = reinterpret_cast<const fc32_t *>(inputs[0]); + item32_t *output = reinterpret_cast<item32_t *>(outputs[0]); + + const __m128 scalar = _mm_set_ps1(float(scale_factor)); + const int shuf = _MM_SHUFFLE(1, 0, 3, 2); + + #define convert_fc32_1_to_sc8_item32_1_bswap_guts(_al_) \ + for (size_t j = 0; i+7 < nsamps; i+=8, j+=4){ \ + /* load from input */ \ + __m128 tmp0 = _mm_load ## _al_ ## ps(reinterpret_cast<const float *>(input+i+0)); \ + __m128 tmp1 = _mm_load ## _al_ ## ps(reinterpret_cast<const float *>(input+i+2)); \ + __m128 tmp2 = _mm_load ## _al_ ## ps(reinterpret_cast<const float *>(input+i+4)); \ + __m128 tmp3 = _mm_load ## _al_ ## ps(reinterpret_cast<const float *>(input+i+6)); \ + \ + /* convert */ \ + const __m128i tmpi = pack_sc32_4x<shuf>(tmp0, tmp1, tmp2, tmp3, 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_fc32_1_to_sc8_item32_1_bswap_guts(_) + } + else{ + convert_fc32_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(fc32, 1, sc8_item32_le, 1, PRIORITY_SIMD){ + const fc32_t *input = reinterpret_cast<const fc32_t *>(inputs[0]); + item32_t *output = reinterpret_cast<item32_t *>(outputs[0]); + + const __m128 scalar = _mm_set_ps1(float(scale_factor)); + const int shuf = _MM_SHUFFLE(2, 3, 0, 1); + + #define convert_fc32_1_to_sc8_item32_1_nswap_guts(_al_) \ + for (size_t j = 0; i+7 < nsamps; i+=8, j+=4){ \ + /* load from input */ \ + __m128 tmp0 = _mm_load ## _al_ ## ps(reinterpret_cast<const float *>(input+i+0)); \ + __m128 tmp1 = _mm_load ## _al_ ## ps(reinterpret_cast<const float *>(input+i+2)); \ + __m128 tmp2 = _mm_load ## _al_ ## ps(reinterpret_cast<const float *>(input+i+4)); \ + __m128 tmp3 = _mm_load ## _al_ ## ps(reinterpret_cast<const float *>(input+i+6)); \ + \ + /* convert */ \ + const __m128i tmpi = pack_sc32_4x<shuf>(tmp0, tmp1, tmp2, tmp3, 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_fc32_1_to_sc8_item32_1_nswap_guts(_) + } + else{ + convert_fc32_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); +} |