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fmt-ops: add RVV optimizations for s32_to_f32d

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sunyuechi 2024-09-29 11:17:18 +08:00 • committed by hleft
parent 0e5d8fdc3b
commit 245adda985
5 changed files with 64 additions and 0 deletions
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49
spa/plugins/audioconvert/fmt-ops-rvv.c
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@ -158,6 +158,55 @@ conv_s16_to_f32d_rvv(struct convert *conv, void * SPA_RESTRICT dst[], const void
s16_to_f32d(conv, &dst[i], &s[i], n_channels, n_samples);
}
static void
s32_to_f32d(void *data, void * SPA_RESTRICT dst[], const void * SPA_RESTRICT src,
uint32_t n_channels, uint32_t n_samples)
{
float *d = dst[0];
uint32_t stride = n_channels << 2;
asm __volatile__ (
".option arch, +v \n\t"
"li t0, 805306368 \n\t"
"fmv.w.x fa5, t0 \n\t"
"1: \n\t"
"vsetvli t0, %[n_samples], e32, m8, ta, ma \n\t"
"vlse32.v v8, (%[src]), %[stride] \n\t"
"sub %[n_samples], %[n_samples], t0 \n\t"
"vfcvt.f.x.v v8, v8 \n\t"
"mul t4, t0, %[stride] \n\t"
"vfmul.vf v8, v8, fa5 \n\t"
"slli t3, t0, 2 \n\t"
"vse32.v v8, (%[d]) \n\t"
"add %[src], %[src], t4 \n\t"
"add %[d], %[d], t3 \n\t"
"bnez %[n_samples], 1b \n\t"
: [n_samples] "+r" (n_samples),
[src] "+r" (src),
[d] "+r" (d)
: [stride] "r" (stride)
: "cc", "memory"
);
}
void
conv_s32_to_f32d_rvv(struct convert *conv, void * SPA_RESTRICT dst[], const void * SPA_RESTRICT src[],
uint32_t n_samples)
{
if (n_samples <= 4) {
conv_s32_to_f32d_c(conv, dst, src, n_samples);
return;
}
const int32_t *s = src[0];
uint32_t i = 0, n_channels = conv->n_channels;
for(i = 0; i < n_channels; i++)
s32_to_f32d(conv, &dst[i], &s[i], n_channels, n_samples);
return;
}
static void
f32d_to_s32(void *data, void * SPA_RESTRICT dst, const void * SPA_RESTRICT src[],
uint32_t n_channels, uint32_t n_samples)