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audioconvert: some more optimizations

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This commit is contained in:
Wim Taymans 2019-03-20 13:04:44 +01:00
parent 67f26c9caf
commit fa3bcabbca
6 changed files with 580 additions and 150 deletions
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79
spa/plugins/audioconvert/fmt-ops-sse41.c Normal file
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/* Spa
*
* Copyright © 2018 Wim Taymans
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice (including the next
* paragraph) shall be included in all copies or substantial portions of the
* Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
* DEALINGS IN THE SOFTWARE.
*/
#include <string.h>
#include <stdio.h>
#include <spa/utils/defs.h>
#include <smmintrin.h>
static void
conv_s24_to_f32d_1_sse41(void *data, void * SPA_RESTRICT dst[], const void * SPA_RESTRICT src, uint32_t n_channels, uint32_t n_samples)
{
const uint8_t *s = src;
float **d = (float **) dst;
float *d0 = d[0];
uint32_t n, unrolled;
__m128i in;
__m128 out, factor = _mm_set1_ps(1.0f / S24_SCALE);
if (SPA_IS_ALIGNED(d0, 16))
unrolled = n_samples / 4;
else
unrolled = 0;
for(n = 0; unrolled--; n += 4) {
in = _mm_insert_epi32(in, *((uint32_t*)&s[0 * n_channels]), 0);
in = _mm_insert_epi32(in, *((uint32_t*)&s[3 * n_channels]), 1);
in = _mm_insert_epi32(in, *((uint32_t*)&s[6 * n_channels]), 2);
in = _mm_insert_epi32(in, *((uint32_t*)&s[9 * n_channels]), 3);
in = _mm_slli_epi32(in, 8);
in = _mm_srai_epi32(in, 8);
out = _mm_cvtepi32_ps(in);
out = _mm_mul_ps(out, factor);
_mm_storeu_ps(&d0[n], out);
s += 12 * n_channels;
}
for(; n < n_samples; n++) {
out = _mm_cvtsi32_ss(out, read_s24(s));
out = _mm_mul_ss(out, factor);
_mm_store_ss(&d0[n], out);
s += 3 * n_channels;
}
}
static void
conv_s24_to_f32d_sse41(void *data, void * SPA_RESTRICT dst[], const void * SPA_RESTRICT src[], uint32_t n_channels, uint32_t n_samples)
{
const int8_t *s = src[0];
uint32_t i = 0;
for(; i + 3 < n_channels; i += 4)
conv_s24_to_f32d_4_ssse3(data, &dst[i], &s[3*i], n_channels, n_samples);
for(; i + 1 < n_channels; i += 2)
conv_s24_to_f32d_2_sse2(data, &dst[i], &s[3*i], n_channels, n_samples);
for(; i < n_channels; i++)
conv_s24_to_f32d_1_sse41(data, &dst[i], &s[3*i], n_channels, n_samples);
}