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audioconvert: use gather in AVX2 code

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This commit is contained in:
Wim Taymans 2022-12-04 20:38:35 +01:00
parent 5b371048df
commit 4e4d76ccd0
1 changed files with 26 additions and 51 deletions
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77
spa/plugins/audioconvert/fmt-ops-avx2.c
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@ -156,11 +156,12 @@ void
conv_s24_to_f32d_1s_avx2(void *data, void * SPA_RESTRICT dst[], const void * SPA_RESTRICT src,
uint32_t n_channels, uint32_t n_samples)
{
const int24_t *s = src;
const int8_t *s = src;
float *d0 = dst[0];
uint32_t n, unrolled;
__m128i in;
__m128 out, factor = _mm_set1_ps(1.0f / S24_SCALE);
__m128i mask1 = _mm_setr_epi32(0*n_channels, 3*n_channels, 6*n_channels, 9*n_channels);
if (SPA_IS_ALIGNED(d0, 16) && n_samples > 0) {
unrolled = n_samples & ~3;
@ -171,23 +172,19 @@ conv_s24_to_f32d_1s_avx2(void *data, void * SPA_RESTRICT dst[], const void * SPA
unrolled = 0;
for(n = 0; n < unrolled; n += 4) {
in = _mm_setr_epi32(
*((uint32_t*)&s[0 * n_channels]),
*((uint32_t*)&s[1 * n_channels]),
*((uint32_t*)&s[2 * n_channels]),
*((uint32_t*)&s[3 * n_channels]));
in = _mm_i32gather_epi32((int*)s, mask1, 1);
in = _mm_slli_epi32(in, 8);
in = _mm_srai_epi32(in, 8);
out = _mm_cvtepi32_ps(in);
out = _mm_mul_ps(out, factor);
_mm_store_ps(&d0[n], out);
s += 4 * n_channels;
s += 12 * n_channels;
}
for(; n < n_samples; n++) {
out = _mm_cvtsi32_ss(factor, s24_to_s32(*s));
out = _mm_cvtsi32_ss(factor, s24_to_s32(*(int24_t*)s));
out = _mm_mul_ss(out, factor);
_mm_store_ss(&d0[n], out);
s += n_channels;
s += 3 * n_channels;
}
}
@ -195,11 +192,12 @@ static void
conv_s24_to_f32d_2s_avx2(void *data, void * SPA_RESTRICT dst[], const void * SPA_RESTRICT src,
uint32_t n_channels, uint32_t n_samples)
{
const int24_t *s = src;
const int8_t *s = src;
float *d0 = dst[0], *d1 = dst[1];
uint32_t n, unrolled;
__m128i in[2];
__m128 out[2], factor = _mm_set1_ps(1.0f / S24_SCALE);
__m128i mask1 = _mm_setr_epi32(0*n_channels, 3*n_channels, 6*n_channels, 9*n_channels);
if (SPA_IS_ALIGNED(d0, 16) &&
SPA_IS_ALIGNED(d1, 16) &&
@ -212,16 +210,8 @@ conv_s24_to_f32d_2s_avx2(void *data, void * SPA_RESTRICT dst[], const void * SPA
unrolled = 0;
for(n = 0; n < unrolled; n += 4) {
in[0] = _mm_setr_epi32(
*((uint32_t*)&s[0 + 0*n_channels]),
*((uint32_t*)&s[0 + 1*n_channels]),
*((uint32_t*)&s[0 + 2*n_channels]),
*((uint32_t*)&s[0 + 3*n_channels]));
in[1] = _mm_setr_epi32(
*((uint32_t*)&s[1 + 0*n_channels]),
*((uint32_t*)&s[1 + 1*n_channels]),
*((uint32_t*)&s[1 + 2*n_channels]),
*((uint32_t*)&s[1 + 3*n_channels]));
in[0] = _mm_i32gather_epi32((int*)&s[0], mask1, 1);
in[1] = _mm_i32gather_epi32((int*)&s[3], mask1, 1);
in[0] = _mm_slli_epi32(in[0], 8);
in[1] = _mm_slli_epi32(in[1], 8);
@ -238,27 +228,28 @@ conv_s24_to_f32d_2s_avx2(void *data, void * SPA_RESTRICT dst[], const void * SPA
_mm_store_ps(&d0[n], out[0]);
_mm_store_ps(&d1[n], out[1]);
s += 4 * n_channels;
s += 12 * n_channels;
}
for(; n < n_samples; n++) {
out[0] = _mm_cvtsi32_ss(factor, s24_to_s32(*s));
out[1] = _mm_cvtsi32_ss(factor, s24_to_s32(*(s+1)));
out[0] = _mm_cvtsi32_ss(factor, s24_to_s32(*((int24_t*)s+0)));
out[1] = _mm_cvtsi32_ss(factor, s24_to_s32(*((int24_t*)s+1)));
out[0] = _mm_mul_ss(out[0], factor);
out[1] = _mm_mul_ss(out[1], factor);
_mm_store_ss(&d0[n], out[0]);
_mm_store_ss(&d1[n], out[1]);
s += n_channels;
s += 3 * n_channels;
}
}
static void
conv_s24_to_f32d_4s_avx2(void *data, void * SPA_RESTRICT dst[], const void * SPA_RESTRICT src,
uint32_t n_channels, uint32_t n_samples)
{
const int24_t *s = src;
const int8_t *s = src;
float *d0 = dst[0], *d1 = dst[1], *d2 = dst[2], *d3 = dst[3];
uint32_t n, unrolled;
__m128i in[4];
__m128 out[4], factor = _mm_set1_ps(1.0f / S24_SCALE);
__m128i mask1 = _mm_setr_epi32(0*n_channels, 3*n_channels, 6*n_channels, 9*n_channels);
if (SPA_IS_ALIGNED(d0, 16) &&
SPA_IS_ALIGNED(d1, 16) &&
@ -273,26 +264,10 @@ conv_s24_to_f32d_4s_avx2(void *data, void * SPA_RESTRICT dst[], const void * SPA
unrolled = 0;
for(n = 0; n < unrolled; n += 4) {
in[0] = _mm_setr_epi32(
*((uint32_t*)&s[0 + 0*n_channels]),
*((uint32_t*)&s[0 + 1*n_channels]),
*((uint32_t*)&s[0 + 2*n_channels]),
*((uint32_t*)&s[0 + 3*n_channels]));
in[1] = _mm_setr_epi32(
*((uint32_t*)&s[1 + 0*n_channels]),
*((uint32_t*)&s[1 + 1*n_channels]),
*((uint32_t*)&s[1 + 2*n_channels]),
*((uint32_t*)&s[1 + 3*n_channels]));
in[2] = _mm_setr_epi32(
*((uint32_t*)&s[2 + 0*n_channels]),
*((uint32_t*)&s[2 + 1*n_channels]),
*((uint32_t*)&s[2 + 2*n_channels]),
*((uint32_t*)&s[2 + 3*n_channels]));
in[3] = _mm_setr_epi32(
*((uint32_t*)&s[3 + 0*n_channels]),
*((uint32_t*)&s[3 + 1*n_channels]),
*((uint32_t*)&s[3 + 2*n_channels]),
*((uint32_t*)&s[3 + 3*n_channels]));
in[0] = _mm_i32gather_epi32((int*)&s[0], mask1, 1);
in[1] = _mm_i32gather_epi32((int*)&s[3], mask1, 1);
in[2] = _mm_i32gather_epi32((int*)&s[6], mask1, 1);
in[3] = _mm_i32gather_epi32((int*)&s[9], mask1, 1);
in[0] = _mm_slli_epi32(in[0], 8);
in[1] = _mm_slli_epi32(in[1], 8);
@ -319,13 +294,13 @@ conv_s24_to_f32d_4s_avx2(void *data, void * SPA_RESTRICT dst[], const void * SPA
_mm_store_ps(&d2[n], out[2]);
_mm_store_ps(&d3[n], out[3]);
s += 4 * n_channels;
s += 12 * n_channels;
}
for(; n < n_samples; n++) {
out[0] = _mm_cvtsi32_ss(factor, s24_to_s32(*s));
out[1] = _mm_cvtsi32_ss(factor, s24_to_s32(*(s+1)));
out[2] = _mm_cvtsi32_ss(factor, s24_to_s32(*(s+2)));
out[3] = _mm_cvtsi32_ss(factor, s24_to_s32(*(s+3)));
out[0] = _mm_cvtsi32_ss(factor, s24_to_s32(*((int24_t*)s+0)));
out[1] = _mm_cvtsi32_ss(factor, s24_to_s32(*((int24_t*)s+1)));
out[2] = _mm_cvtsi32_ss(factor, s24_to_s32(*((int24_t*)s+2)));
out[3] = _mm_cvtsi32_ss(factor, s24_to_s32(*((int24_t*)s+3)));
out[0] = _mm_mul_ss(out[0], factor);
out[1] = _mm_mul_ss(out[1], factor);
out[2] = _mm_mul_ss(out[2], factor);
@ -334,7 +309,7 @@ conv_s24_to_f32d_4s_avx2(void *data, void * SPA_RESTRICT dst[], const void * SPA
_mm_store_ss(&d1[n], out[1]);
_mm_store_ss(&d2[n], out[2]);
_mm_store_ss(&d3[n], out[3]);
s += n_channels;
s += 3 * n_channels;
}
}