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fmt-ops: add sse2 version of f32 to s16 planar/interleaved

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This commit is contained in:
Wim Taymans 2020-07-03 11:04:39 +02:00
parent 21fc163c49
commit a520335581
3 changed files with 60 additions and 0 deletions
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49
spa/plugins/audioconvert/fmt-ops-sse2.c
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@ -543,6 +543,55 @@ conv_f32d_to_s32_sse2(struct convert *conv, void * SPA_RESTRICT dst[], const voi
conv_f32d_to_s32_1s_sse2(conv, &d[i], &src[i], n_channels, n_samples);
}
static void
conv_f32_to_s16_1_sse2(void *data, void * SPA_RESTRICT dst, const void * SPA_RESTRICT src,
uint32_t n_samples)
{
const float *s = src;
int16_t *d = dst;
uint32_t n, unrolled;
__m128 in[2];
__m128i out[2];
__m128 int_max = _mm_set1_ps(S16_MAX_F);
__m128 int_min = _mm_sub_ps(_mm_setzero_ps(), int_max);
if (SPA_IS_ALIGNED(s, 16))
unrolled = n_samples & ~7;
else
unrolled = 0;
for(n = 0; n < unrolled; n += 8) {
in[0] = _mm_mul_ps(_mm_load_ps(&s[n]), int_max);
in[1] = _mm_mul_ps(_mm_load_ps(&s[n+4]), int_max);
out[0] = _mm_cvtps_epi32(in[0]);
out[1] = _mm_cvtps_epi32(in[1]);
out[0] = _mm_packs_epi32(out[0], out[1]);
_mm_storeu_si128((__m128i*)(d+0), out[0]);
d += 8;
}
for(; n < n_samples; n++) {
in[0] = _mm_mul_ss(_mm_load_ss(&s[n]), int_max);
in[0] = _mm_min_ss(int_max, _mm_max_ss(in[0], int_min));
*d++ = _mm_cvtss_si32(in[0]);
}
}
void
conv_f32d_to_s16d_sse2(struct convert *conv, void * SPA_RESTRICT dst[], const void * SPA_RESTRICT src[],
uint32_t n_samples)
{
uint32_t i, n_channels = conv->n_channels;
for(i = 0; i < n_channels; i++)
conv_f32_to_s16_1_sse2(conv, dst[i], src[i], n_samples);
}
void
conv_f32_to_s16_sse2(struct convert *conv, void * SPA_RESTRICT dst[], const void * SPA_RESTRICT src[],
uint32_t n_samples)
{
conv_f32_to_s16_1_sse2(conv, dst[0], src[0], n_samples * conv->n_channels);
}
static void
conv_f32d_to_s16_1s_sse2(void *data, void * SPA_RESTRICT dst, const void * SPA_RESTRICT src[],
uint32_t n_channels, uint32_t n_samples)