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peaks: small optimization

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This commit is contained in:
Wim Taymans 2019-03-19 17:19:44 +01:00
parent 8daff4ce50
commit 67f26c9caf
1 changed files with 4 additions and 3 deletions
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7
spa/plugins/audioconvert/resample-peaks-sse.h
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@ -41,7 +41,8 @@ static void impl_peaks_process_sse(struct resample *r, int channel,
struct peaks_data *pd = r->data; struct peaks_data *pd = r->data;
float *s = src, *d = dst, m; float *s = src, *d = dst, m;
uint32_t i, o, end, chunk, unrolled; uint32_t i, o, end, chunk, unrolled;
__m128 in, max, mask = _mm_set_ps1(-0.0f); __m128 in, max, mask = _mm_andnot_ps(_mm_set_ps1(-0.0f),
_mm_cmpeq_ps(_mm_setzero_ps(), _mm_setzero_ps()));
o = i = 0; o = i = 0;
@ -57,8 +58,8 @@ static void impl_peaks_process_sse(struct resample *r, int channel,
for (; i < unrolled; i+=4) { for (; i < unrolled; i+=4) {
in = _mm_loadu_ps(&s[i]); in = _mm_loadu_ps(&s[i]);
in = _mm_andnot_ps(mask, in); in = _mm_and_ps(mask, in);
max = _mm_max_ps(max, in); max = _mm_max_ps(in, max);
} }
for (; i < chunk; i++) for (; i < chunk; i++)
m = SPA_MAX(fabsf(s[i]), m); m = SPA_MAX(fabsf(s[i]), m);