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https://gitlab.freedesktop.org/pipewire/pipewire.git
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94 lines
3.7 KiB
C
94 lines
3.7 KiB
C
/* Spa
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*
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* Copyright © 2019 Wim Taymans
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice (including the next
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* paragraph) shall be included in all copies or substantial portions of the
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* Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
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* DEALINGS IN THE SOFTWARE.
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*/
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#include "resample-native-impl.h"
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#include <assert.h>
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#include <immintrin.h>
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static void inner_product_avx(float *d, const float * SPA_RESTRICT s,
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const float * SPA_RESTRICT taps, uint32_t n_taps)
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{
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__m256 sy[2] = { _mm256_setzero_ps(), _mm256_setzero_ps() }, ty;
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__m128 sx[2], tx;
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uint32_t i = 0;
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uint32_t n_taps4 = n_taps & ~0xf;
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for (; i < n_taps4; i += 16) {
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ty = (__m256)_mm256_lddqu_si256((__m256i*)(s + i + 0));
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sy[0] = _mm256_fmadd_ps(ty, _mm256_load_ps(taps + i + 0), sy[0]);
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ty = (__m256)_mm256_lddqu_si256((__m256i*)(s + i + 8));
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sy[1] = _mm256_fmadd_ps(ty, _mm256_load_ps(taps + i + 8), sy[1]);
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}
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sy[0] = _mm256_add_ps(sy[1], sy[0]);
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sx[1] = _mm256_extractf128_ps(sy[0], 1);
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sx[0] = _mm256_extractf128_ps(sy[0], 0);
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for (; i < n_taps; i += 8) {
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tx = (__m128)_mm_lddqu_si128((__m128i*)(s + i + 0));
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sx[0] = _mm_fmadd_ps(tx, _mm_load_ps(taps + i + 0), sx[0]);
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tx = (__m128)_mm_lddqu_si128((__m128i*)(s + i + 4));
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sx[1] = _mm_fmadd_ps(tx, _mm_load_ps(taps + i + 4), sx[1]);
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}
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sx[0] = _mm_add_ps(sx[0], sx[1]);
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sx[0] = _mm_hadd_ps(sx[0], sx[0]);
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sx[0] = _mm_hadd_ps(sx[0], sx[0]);
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_mm_store_ss(d, sx[0]);
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}
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static void inner_product_ip_avx(float *d, const float * SPA_RESTRICT s,
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const float * SPA_RESTRICT t0, const float * SPA_RESTRICT t1, float x,
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uint32_t n_taps)
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{
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__m256 sy[2] = { _mm256_setzero_ps(), _mm256_setzero_ps() }, ty;
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__m128 sx[2], tx;
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uint32_t i, n_taps4 = n_taps & ~0xf;
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for (i = 0; i < n_taps4; i += 16) {
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ty = (__m256)_mm256_lddqu_si256((__m256i*)(s + i + 0));
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sy[0] = _mm256_fmadd_ps(ty, _mm256_load_ps(t0 + i + 0), sy[0]);
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sy[1] = _mm256_fmadd_ps(ty, _mm256_load_ps(t1 + i + 0), sy[1]);
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ty = (__m256)_mm256_lddqu_si256((__m256i*)(s + i + 8));
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sy[0] = _mm256_fmadd_ps(ty, _mm256_load_ps(t0 + i + 8), sy[0]);
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sy[1] = _mm256_fmadd_ps(ty, _mm256_load_ps(t1 + i + 8), sy[1]);
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}
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sx[0] = _mm_add_ps(_mm256_extractf128_ps(sy[0], 0), _mm256_extractf128_ps(sy[0], 1));
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sx[1] = _mm_add_ps(_mm256_extractf128_ps(sy[1], 0), _mm256_extractf128_ps(sy[1], 1));
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for (; i < n_taps; i += 8) {
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tx = (__m128)_mm_lddqu_si128((__m128i*)(s + i + 0));
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sx[0] = _mm_fmadd_ps(tx, _mm_load_ps(t0 + i + 0), sx[0]);
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sx[1] = _mm_fmadd_ps(tx, _mm_load_ps(t1 + i + 0), sx[1]);
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tx = (__m128)_mm_lddqu_si128((__m128i*)(s + i + 4));
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sx[0] = _mm_fmadd_ps(tx, _mm_load_ps(t0 + i + 4), sx[0]);
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sx[1] = _mm_fmadd_ps(tx, _mm_load_ps(t1 + i + 4), sx[1]);
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}
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sx[1] = _mm_mul_ps(_mm_sub_ps(sx[1], sx[0]), _mm_load1_ps(&x));
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sx[0] = _mm_add_ps(sx[0], sx[1]);
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sx[0] = _mm_hadd_ps(sx[0], sx[0]);
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sx[0] = _mm_hadd_ps(sx[0], sx[0]);
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_mm_store_ss(d, sx[0]);
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}
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MAKE_RESAMPLER_FULL(avx);
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MAKE_RESAMPLER_INTER(avx);
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