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x86/float_dsp: add ff_vector_fmul_reverse_avx2

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~20% faster than AVX.

Signed-off-by: James Almer <jamrial@gmail.com>
This commit is contained in:
James Almer
2017-04-11 21:29:09 -03:00
parent 5b441d2981
commit f1d80bc630
2 changed files with 19 additions and 1 deletions
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5
libavutil/x86/float_dsp_init.c
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@ -67,6 +67,8 @@ void ff_vector_fmul_reverse_sse(float *dst, const float *src0,
const float *src1, int len);
void ff_vector_fmul_reverse_avx(float *dst, const float *src0,
const float *src1, int len);
void ff_vector_fmul_reverse_avx2(float *dst, const float *src0,
const float *src1, int len);
float ff_scalarproduct_float_sse(const float *v1, const float *v2, int order);
@ -101,6 +103,9 @@ av_cold void ff_float_dsp_init_x86(AVFloatDSPContext *fdsp)
fdsp->vector_fmul_add = ff_vector_fmul_add_avx;
fdsp->vector_fmul_reverse = ff_vector_fmul_reverse_avx;
}
if (EXTERNAL_AVX2_FAST(cpu_flags)) {
fdsp->vector_fmul_reverse = ff_vector_fmul_reverse_avx2;
}
if (EXTERNAL_FMA3_FAST(cpu_flags)) {
fdsp->vector_fmac_scalar = ff_vector_fmac_scalar_fma3;
fdsp->vector_fmul_add = ff_vector_fmul_add_fma3;