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resample: fix peaks sse code

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Fix the shuffle arguments.
Use another way of making 0x80000000 and use andnot to remove the
sign bit.
This commit is contained in:
Wim Taymans 2022-09-14 16:55:46 +02:00
parent 3ad1a5d4dc
commit 565bb2c493
1 changed files with 6 additions and 6 deletions
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12
spa/plugins/audioconvert/resample-peaks-sse.c
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@ -32,7 +32,7 @@ static inline float hmax_ps(__m128 val)
{
__m128 t = _mm_movehl_ps(val, val);
t = _mm_max_ps(t, val);
val = _mm_shuffle_ps(val, t, 0x55);
val = _mm_shuffle_ps(t, t, 0x55);
val = _mm_max_ss(t, val);
return _mm_cvtss_f32(val);
}
@ -41,7 +41,7 @@ static inline float find_abs_max_sse(const float *s, uint32_t n_samples, float m
{
__m128 in[2], max;
uint32_t n, unrolled;
const __m128 mask = (__m128) _mm_set1_epi32(0x7fffffff);
const __m128 mask = _mm_set1_ps(-0.0f);
max = _mm_set1_ps(m);
@ -50,10 +50,10 @@ static inline float find_abs_max_sse(const float *s, uint32_t n_samples, float m
for (n = 0; n < unrolled; n += 8) {
in[0] = _mm_loadu_ps(&s[n + 0]);
in[1] = _mm_loadu_ps(&s[n + 4]);
in[0] = _mm_and_ps(mask, in[0]);
in[1] = _mm_and_ps(mask, in[1]);
max = _mm_max_ps(in[0], max);
max = _mm_max_ps(in[1], max);
in[0] = _mm_andnot_ps(mask, in[0]);
in[1] = _mm_andnot_ps(mask, in[1]);
max = _mm_max_ps(max, in[0]);
max = _mm_max_ps(max, in[1]);
}
for (; n < n_samples; n++)
m = fmaxf(fabsf(s[n]), m);