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audioconvert: simplify 24 bits handling

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Make a new uint42_t and int24_t type and use that to handle 24 bits
samples. This makes it easier because we can iterate and copy the
structs like other types.
This commit is contained in:
Wim Taymans 2022-07-01 12:24:35 +02:00
parent e395f62425
commit 817d5bd7a4
6 changed files with 204 additions and 247 deletions
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14
spa/plugins/audioconvert/fmt-ops-sse41.c
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@ -30,7 +30,7 @@ static void
conv_s24_to_f32d_1s_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;
const int24_t *s = src;
float *d0 = dst[0];
uint32_t n, unrolled;
__m128i in = _mm_setzero_si128();
@ -43,21 +43,21 @@ conv_s24_to_f32d_1s_sse41(void *data, void * SPA_RESTRICT dst[], const void * SP
for(n = 0; n < 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_insert_epi32(in, *((uint32_t*)&s[1 * n_channels]), 1);
in = _mm_insert_epi32(in, *((uint32_t*)&s[2 * n_channels]), 2);
in = _mm_insert_epi32(in, *((uint32_t*)&s[3 * 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_store_ps(&d0[n], out);
s += 12 * n_channels;
s += 4 * n_channels;
}
for(; n < n_samples; n++) {
out = _mm_cvtsi32_ss(factor, read_s24(s));
out = _mm_cvtsi32_ss(factor, s24_to_s32(*s));
out = _mm_mul_ss(out, factor);
_mm_store_ss(&d0[n], out);
s += 3 * n_channels;
s += n_channels;
}
}