diff options
| author | Chris Robinson <chris.kcat@gmail.com> | 2020-12-12 14:58:09 -0800 |
|---|---|---|
| committer | Chris Robinson <chris.kcat@gmail.com> | 2020-12-12 14:58:09 -0800 |
| commit | e179bf0a12e80eb41041469bc04ba1fbcffe11e8 (patch) | |
| tree | 0e42d2b17f1005fad29ec4f509b1530a15213b88 /alc/mixer/mixer_sse41.cpp | |
| parent | 14df53411402bae0e5dcdea8bc0d2d3ba30e7923 (diff) | |
Move the mixer functions to core
Diffstat (limited to 'alc/mixer/mixer_sse41.cpp')
| -rw-r--r-- | alc/mixer/mixer_sse41.cpp | 90 |
1 files changed, 0 insertions, 90 deletions
diff --git a/alc/mixer/mixer_sse41.cpp b/alc/mixer/mixer_sse41.cpp deleted file mode 100644 index cacc9e64..00000000 --- a/alc/mixer/mixer_sse41.cpp +++ /dev/null @@ -1,90 +0,0 @@ -/** - * OpenAL cross platform audio library - * Copyright (C) 2014 by Timothy Arceri <t_arceri@yahoo.com.au>. - * This library is free software; you can redistribute it and/or - * modify it under the terms of the GNU Library General Public - * License as published by the Free Software Foundation; either - * version 2 of the License, or (at your option) any later version. - * - * This library 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 - * Library General Public License for more details. - * - * You should have received a copy of the GNU Library General Public - * License along with this library; if not, write to the - * Free Software Foundation, Inc., - * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. - * Or go to http://www.gnu.org/copyleft/lgpl.html - */ - -#include "config.h" - -#include <xmmintrin.h> -#include <emmintrin.h> -#include <smmintrin.h> - -#include "alnumeric.h" -#include "defs.h" - -struct SSE4Tag; -struct LerpTag; - - -template<> -const float *Resample_<LerpTag,SSE4Tag>(const InterpState*, const float *RESTRICT src, uint frac, - uint increment, const al::span<float> dst) -{ - const __m128i increment4{_mm_set1_epi32(static_cast<int>(increment*4))}; - const __m128 fracOne4{_mm_set1_ps(1.0f/MixerFracOne)}; - const __m128i fracMask4{_mm_set1_epi32(MixerFracMask)}; - - alignas(16) uint pos_[4], frac_[4]; - InitPosArrays(frac, increment, frac_, pos_, 4); - __m128i frac4{_mm_setr_epi32(static_cast<int>(frac_[0]), static_cast<int>(frac_[1]), - static_cast<int>(frac_[2]), static_cast<int>(frac_[3]))}; - __m128i pos4{_mm_setr_epi32(static_cast<int>(pos_[0]), static_cast<int>(pos_[1]), - static_cast<int>(pos_[2]), static_cast<int>(pos_[3]))}; - - auto dst_iter = dst.begin(); - for(size_t todo{dst.size()>>2};todo;--todo) - { - const int pos0{_mm_extract_epi32(pos4, 0)}; - const int pos1{_mm_extract_epi32(pos4, 1)}; - const int pos2{_mm_extract_epi32(pos4, 2)}; - const int pos3{_mm_extract_epi32(pos4, 3)}; - const __m128 val1{_mm_setr_ps(src[pos0 ], src[pos1 ], src[pos2 ], src[pos3 ])}; - const __m128 val2{_mm_setr_ps(src[pos0+1], src[pos1+1], src[pos2+1], src[pos3+1])}; - - /* val1 + (val2-val1)*mu */ - const __m128 r0{_mm_sub_ps(val2, val1)}; - const __m128 mu{_mm_mul_ps(_mm_cvtepi32_ps(frac4), fracOne4)}; - const __m128 out{_mm_add_ps(val1, _mm_mul_ps(mu, r0))}; - - _mm_store_ps(dst_iter, out); - dst_iter += 4; - - frac4 = _mm_add_epi32(frac4, increment4); - pos4 = _mm_add_epi32(pos4, _mm_srli_epi32(frac4, MixerFracBits)); - frac4 = _mm_and_si128(frac4, fracMask4); - } - - if(size_t todo{dst.size()&3}) - { - /* NOTE: These four elements represent the position *after* the last - * four samples, so the lowest element is the next position to - * resample. - */ - src += static_cast<uint>(_mm_cvtsi128_si32(pos4)); - frac = static_cast<uint>(_mm_cvtsi128_si32(frac4)); - - do { - *(dst_iter++) = lerp(src[0], src[1], static_cast<float>(frac) * (1.0f/MixerFracOne)); - - frac += increment; - src += frac>>MixerFracBits; - frac &= MixerFracMask; - } while(--todo); - } - return dst.data(); -} |