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resample-native: small tweaks

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This commit is contained in:
Wim Taymans 2019-03-29 12:08:45 +01:00
parent d260cb19be
commit d47353c0e6
2 changed files with 23 additions and 33 deletions
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18
spa/plugins/audioconvert/resample-native-avx.c
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@ -30,19 +30,20 @@
static void inner_product_avx(float *d, const float * SPA_RESTRICT s,
const float * SPA_RESTRICT taps, uint32_t n_taps)
{
__m256 sy[2] = { _mm256_setzero_ps(), _mm256_setzero_ps() };
__m256 sy[2] = { _mm256_setzero_ps(), _mm256_setzero_ps() }, ty;
__m128 sx[2];
uint32_t i = 0;
uint32_t n_taps4 = n_taps & ~0xf;
for (; i < n_taps4; i += 16) {
sy[0] = _mm256_fmadd_ps(_mm256_loadu_ps(s + i + 0), _mm256_load_ps(taps + i + 0), sy[0]);
sy[1] = _mm256_fmadd_ps(_mm256_loadu_ps(s + i + 8), _mm256_load_ps(taps + i + 8), sy[1]);
ty = (__m256)_mm256_lddqu_si256((__m256i*)(s + i + 0));
sy[0] = _mm256_fmadd_ps(ty, _mm256_load_ps(taps + i + 0), sy[0]);
ty = (__m256)_mm256_lddqu_si256((__m256i*)(s + i + 8));
sy[1] = _mm256_fmadd_ps(ty, _mm256_load_ps(taps + i + 8), sy[1]);
}
sy[0] = _mm256_add_ps(sy[0], sy[1]);
sx[0] = _mm256_extractf128_ps(sy[0], 0);
sy[0] = _mm256_add_ps(sy[1], sy[0]);
sx[1] = _mm256_extractf128_ps(sy[0], 1);
sx[0] = _mm256_extractf128_ps(sy[0], 0);
for (; i < n_taps; i += 8) {
sx[0] = _mm_fmadd_ps(_mm_loadu_ps(s + i + 0), _mm_load_ps(taps + i + 0), sx[0]);
sx[1] = _mm_fmadd_ps(_mm_loadu_ps(s + i + 4), _mm_load_ps(taps + i + 4), sx[1]);
@ -69,9 +70,8 @@ static void inner_product_ip_avx(float *d, const float * SPA_RESTRICT s,
sy[0] = _mm256_fmadd_ps(ty, _mm256_load_ps(t0 + i + 8), sy[0]);
sy[1] = _mm256_fmadd_ps(ty, _mm256_load_ps(t1 + i + 8), sy[1]);
}
sy[0] = _mm256_add_ps(sy[0], sy[1]);
sx[0] = _mm256_extractf128_ps(sy[0], 0);
sx[1] = _mm256_extractf128_ps(sy[0], 1);
sx[0] = _mm256_extractf128_ps(_mm256_hadd_ps(sy[0], sy[0]), 0);
sx[1] = _mm256_extractf128_ps(_mm256_hadd_ps(sy[1], sy[1]), 0);
for (; i < n_taps; i += 8) {
tx = _mm_loadu_ps(s + i + 0);
sx[0] = _mm_fmadd_ps(tx, _mm_load_ps(t0 + i + 0), sx[0]);