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audiodsp: ppc: Add VSX variant 

Signed-off-by: Luca Barbato <lu_zero@gentoo.org>
Signed-off-by: Diego Biurrun <diego@biurrun.de>
This commit is contained in:
Luca Barbato 2016-09-10 18:12:23 +02:00 committed by Diego Biurrun
parent e89cef4050
commit caccb3a0cd
1 changed files with 32 additions and 0 deletions
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32
libavcodec/ppc/audiodsp.c
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@ -61,6 +61,31 @@ static int32_t scalarproduct_int16_altivec(const int16_t *v1, const int16_t *v2,
#endif /* HAVE_ALTIVEC */
#if HAVE_VSX
static int32_t scalarproduct_int16_vsx(const int16_t *v1, const int16_t *v2, int order)
{
int i;
LOAD_ZERO;
register vec_s16 vec1;
register vec_s32 res = vec_splat_s32(0), t;
int32_t ires;
for (i = 0; i < order; i += 8) {
vec1 = vec_vsx_ld(0, v1);
t = vec_msum(vec1, vec_ld(0, v2), zero_s32v);
res = vec_sums(t, res);
v1 += 8;
v2 += 8;
}
res = vec_splat(res, 3);
vec_ste(res, 0, &ires);
return ires;
}
#endif /* HAVE_VSX */
av_cold void ff_audiodsp_init_ppc(AudioDSPContext *c)
{
#if HAVE_ALTIVEC && HAVE_BIGENDIAN
@ -69,4 +94,11 @@ av_cold void ff_audiodsp_init_ppc(AudioDSPContext *c)
c->scalarproduct_int16 = scalarproduct_int16_altivec;
#endif /* HAVE_ALTIVEC */
#if HAVE_VSX
if (!PPC_VSX(av_get_cpu_flags()))
return;
c->scalarproduct_int16 = scalarproduct_int16_vsx;
#endif /* HAVE_VSX */
}