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audioconvert: build C versions with -Ofast and -ffast-math

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Move resampler implementations to a -c version.
Compile some of the functions with other flags to make them more
optimized.
This commit is contained in:
Wim Taymans 2022-07-14 10:07:07 +02:00
parent 0ba3e7c5db
commit 419517fd55
8 changed files with 156 additions and 95 deletions
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39
spa/plugins/audioconvert/resample-native.c
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@ -97,46 +97,7 @@ static int build_filter(float *taps, uint32_t stride, uint32_t n_taps, uint32_t
return 0;
}
static void inner_product_c(float *d, const float * SPA_RESTRICT s,
const float * SPA_RESTRICT taps, uint32_t n_taps)
{
float sum = 0.0f;
#if 1
uint32_t i, j, nt2 = n_taps/2;
for (i = 0, j = n_taps-1; i < nt2; i++, j--)
sum += s[i] * taps[i] + s[j] * taps[j];
#else
uint32_t i;
for (i = 0; i < n_taps; i++)
sum += s[i] * taps[i];
#endif
*d = sum;
}
static void inner_product_ip_c(float *d, const float * SPA_RESTRICT s,
const float * SPA_RESTRICT t0, const float * SPA_RESTRICT t1, float x,
uint32_t n_taps)
{
float sum[2] = { 0.0f, 0.0f };
uint32_t i;
#if 1
uint32_t j, nt2 = n_taps/2;
for (i = 0, j = n_taps-1; i < nt2; i++, j--) {
sum[0] += s[i] * t0[i] + s[j] * t0[j];
sum[1] += s[i] * t1[i] + s[j] * t1[j];
}
#else
for (i = 0; i < n_taps; i++) {
sum[0] += s[i] * t0[i];
sum[1] += s[i] * t1[i];
}
#endif
*d = (sum[1] - sum[0]) * x + sum[0];
}
MAKE_RESAMPLER_COPY(c);
MAKE_RESAMPLER_FULL(c);
MAKE_RESAMPLER_INTER(c);
#define MAKE(fmt,copy,full,inter,...) \
{ SPA_AUDIO_FORMAT_ ##fmt, do_resample_ ##copy, #copy, \