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added simd capability

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This commit is contained in:
Mark Borgerding
2005-06-24 03:03:31 +00:00
parent 24be1c5850
commit 7f6cbeab2e
10 changed files with 112 additions and 9 deletions
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13
tools/kiss_fastfir.c
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@ -159,8 +159,13 @@ kiss_fastfir_cfg kiss_fastfir_alloc(
scale = 1.0 / st->nfft;
for ( i=0; i < st->n_freq_bins; ++i ) {
#ifdef USE_SIMD
st->fir_freq_resp[i].r *= _mm_set1_ps(scale);
st->fir_freq_resp[i].i *= _mm_set1_ps(scale);
#else
st->fir_freq_resp[i].r *= scale;
st->fir_freq_resp[i].i *= scale;
#endif
}
return st;
}
@ -286,14 +291,22 @@ void direct_file_filter(
for (k = 0; k < nread; ++k) {
tmph = imp_resp+nlag;
#ifdef REAL_FASTFIR
# ifdef USE_SIMD
outval = _mm_set1_ps(0);
#else
outval = 0;
#endif
for (tap = oldestlag; tap < nlag; ++tap)
outval += circbuf[tap] * *tmph--;
for (tap = 0; tap < oldestlag; ++tap)
outval += circbuf[tap] * *tmph--;
outval += buf[k] * *tmph;
#else
# ifdef USE_SIMD
outval.r = outval.i = _mm_set1_ps(0);
#else
outval.r = outval.i = 0;
#endif
for (tap = oldestlag; tap < nlag; ++tap){
C_MUL(tmp,circbuf[tap],*tmph);
--tmph;