diff options
Diffstat (limited to 'host/lib/convert/sse2_fc64_to_sc16.cpp')
| -rw-r--r-- | host/lib/convert/sse2_fc64_to_sc16.cpp | 45 |
1 files changed, 45 insertions, 0 deletions
diff --git a/host/lib/convert/sse2_fc64_to_sc16.cpp b/host/lib/convert/sse2_fc64_to_sc16.cpp index 7c2ce1f8e..c85e441b4 100644 --- a/host/lib/convert/sse2_fc64_to_sc16.cpp +++ b/host/lib/convert/sse2_fc64_to_sc16.cpp @@ -107,3 +107,48 @@ DECLARE_CONVERTER(fc64, 1, sc16_item32_be, 1, PRIORITY_SIMD) // convert remainder xx_to_item32_sc16<uhd::htonx>(input + i, output + i, nsamps - i, scale_factor); } + +DECLARE_CONVERTER(fc64, 1, sc16_chdr, 1, PRIORITY_SIMD) +{ + const fc64_t* input = reinterpret_cast<const fc64_t*>(inputs[0]); + sc16_t* output = reinterpret_cast<sc16_t*>(outputs[0]); + + const __m128d scalar = _mm_set1_pd(scale_factor); + +#define convert_fc64_1_to_chdr_1_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); \ + \ + /* store to output */ \ + _mm_storeu_si128( \ + reinterpret_cast<__m128i*>(output + i), _mm_packs_epi32(tmpilo, tmpihi)); \ + } + + size_t i = 0; + + // dispatch according to alignment + if ((size_t(input) & 0xf) == 0) { + convert_fc64_1_to_chdr_1_guts(_) + } else { + convert_fc64_1_to_chdr_1_guts(u_) + } + + // convert remainder + xx_to_chdr_sc16(input + i, output + i, nsamps - i, scale_factor); +} |