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resample: implement inter for ssse3

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This commit is contained in:
Wim Taymans 2026-04-22 18:28:25 +02:00
parent dfeca5806f
commit 37f9f7773c
1 changed files with 63 additions and 5 deletions
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68
spa/plugins/audioconvert/resample-native-ssse3.c
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@ -81,14 +81,72 @@ static inline void inner_product_ip_ssse3(float *d, const float * SPA_RESTRICT s
const float * SPA_RESTRICT t0, const float * SPA_RESTRICT t1, float x, const float * SPA_RESTRICT t0, const float * SPA_RESTRICT t1, float x,
uint32_t n_taps) uint32_t n_taps)
{ {
float sum[2] = { 0.0f, 0.0f }; __m128 sum[2] = { _mm_setzero_ps(), _mm_setzero_ps() };
__m128 r0, r1, r;
uint32_t i; uint32_t i;
for (i = 0; i < n_taps; i++) { switch (SPA_PTR_ALIGNMENT(s, 16)) {
sum[0] += s[i] * t0[i]; case 0:
sum[1] += s[i] * t1[i]; for (i = 0; i < n_taps; i += 8) {
r = _mm_load_ps(s + i + 0);
sum[0] = _mm_add_ps(sum[0], _mm_mul_ps(r, _mm_load_ps(t0 + i + 0)));
sum[1] = _mm_add_ps(sum[1], _mm_mul_ps(r, _mm_load_ps(t1 + i + 0)));
r = _mm_load_ps(s + i + 4);
sum[0] = _mm_add_ps(sum[0], _mm_mul_ps(r, _mm_load_ps(t0 + i + 4)));
sum[1] = _mm_add_ps(sum[1], _mm_mul_ps(r, _mm_load_ps(t1 + i + 4)));
}
break;
case 4:
r0 = _mm_load_ps(s - 1);
for (i = 0; i < n_taps; i += 8) {
r1 = _mm_load_ps(s + i + 3);
r = (__m128)_mm_alignr_epi8((__m128i)r1, (__m128i)r0, 4);
sum[0] = _mm_add_ps(sum[0], _mm_mul_ps(r, _mm_load_ps(t0 + i + 0)));
sum[1] = _mm_add_ps(sum[1], _mm_mul_ps(r, _mm_load_ps(t1 + i + 0)));
r0 = r1;
r1 = _mm_load_ps(s + i + 7);
r = (__m128)_mm_alignr_epi8((__m128i)r1, (__m128i)r0, 4);
sum[0] = _mm_add_ps(sum[0], _mm_mul_ps(r, _mm_load_ps(t0 + i + 4)));
sum[1] = _mm_add_ps(sum[1], _mm_mul_ps(r, _mm_load_ps(t1 + i + 4)));
r0 = r1;
}
break;
case 8:
r0 = _mm_load_ps(s - 2);
for (i = 0; i < n_taps; i += 8) {
r1 = _mm_load_ps(s + i + 2);
r = (__m128)_mm_alignr_epi8((__m128i)r1, (__m128i)r0, 8);
sum[0] = _mm_add_ps(sum[0], _mm_mul_ps(r, _mm_load_ps(t0 + i + 0)));
sum[1] = _mm_add_ps(sum[1], _mm_mul_ps(r, _mm_load_ps(t1 + i + 0)));
r0 = r1;
r1 = _mm_load_ps(s + i + 6);
r = (__m128)_mm_alignr_epi8((__m128i)r1, (__m128i)r0, 8);
sum[0] = _mm_add_ps(sum[0], _mm_mul_ps(r, _mm_load_ps(t0 + i + 4)));
sum[1] = _mm_add_ps(sum[1], _mm_mul_ps(r, _mm_load_ps(t1 + i + 4)));
r0 = r1;
}
break;
case 12:
r0 = _mm_load_ps(s - 3);
for (i = 0; i < n_taps; i += 8) {
r1 = _mm_load_ps(s + i + 1);
r = (__m128)_mm_alignr_epi8((__m128i)r1, (__m128i)r0, 12);
sum[0] = _mm_add_ps(sum[0], _mm_mul_ps(r, _mm_load_ps(t0 + i + 0)));
sum[1] = _mm_add_ps(sum[1], _mm_mul_ps(r, _mm_load_ps(t1 + i + 0)));
r0 = r1;
r1 = _mm_load_ps(s + i + 5);
r = (__m128)_mm_alignr_epi8((__m128i)r1, (__m128i)r0, 12);
sum[0] = _mm_add_ps(sum[0], _mm_mul_ps(r, _mm_load_ps(t0 + i + 4)));
sum[1] = _mm_add_ps(sum[1], _mm_mul_ps(r, _mm_load_ps(t1 + i + 4)));
r0 = r1;
}
break;
} }
*d = (sum[1] - sum[0]) * x + sum[0]; sum[1] = _mm_mul_ps(_mm_sub_ps(sum[1], sum[0]), _mm_load1_ps(&x));
sum[0] = _mm_add_ps(sum[0], sum[1]);
sum[0] = _mm_add_ps(sum[0], _mm_movehdup_ps(sum[0]));
sum[0] = _mm_add_ss(sum[0], _mm_movehl_ps(sum[0], sum[0]));
_mm_store_ss(d, sum[0]);
} }
MAKE_RESAMPLER_FULL(ssse3); MAKE_RESAMPLER_FULL(ssse3);