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x86/float_dsp: add ff_vector_dmul_{sse2,avx} 

~3x to 5x faster.

Signed-off-by: James Almer <jamrial@gmail.com>
This commit is contained in:
James Almer 2018-09-13 10:04:46 -03:00
parent 93bf1dcaec
commit 9d002d7818
2 changed files with 40 additions and 0 deletions
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33
libavutil/x86/float_dsp.asm
View File

@ -58,6 +58,39 @@ INIT_YMM avx
VECTOR_FMUL
%endif
;-----------------------------------------------------------------------------
; void vector_dmul(double *dst, const double *src0, const double *src1, int len)
;-----------------------------------------------------------------------------
%macro VECTOR_DMUL 0
cglobal vector_dmul, 4,4,4, dst, src0, src1, len
lea lend, [lenq*8 - mmsize*4]
ALIGN 16
.loop:
movaps m0, [src0q + lenq + 0*mmsize]
movaps m1, [src0q + lenq + 1*mmsize]
movaps m2, [src0q + lenq + 2*mmsize]
movaps m3, [src0q + lenq + 3*mmsize]
mulpd m0, m0, [src1q + lenq + 0*mmsize]
mulpd m1, m1, [src1q + lenq + 1*mmsize]
mulpd m2, m2, [src1q + lenq + 2*mmsize]
mulpd m3, m3, [src1q + lenq + 3*mmsize]
movaps [dstq + lenq + 0*mmsize], m0
movaps [dstq + lenq + 1*mmsize], m1
movaps [dstq + lenq + 2*mmsize], m2
movaps [dstq + lenq + 3*mmsize], m3
sub lenq, mmsize*4
jge .loop
RET
%endmacro
INIT_XMM sse2
VECTOR_DMUL
%if HAVE_AVX_EXTERNAL
INIT_YMM avx
VECTOR_DMUL
%endif
;------------------------------------------------------------------------------
; void ff_vector_fmac_scalar(float *dst, const float *src, float mul, int len)
;------------------------------------------------------------------------------

7
libavutil/x86/float_dsp_init.c
View File

@ -29,6 +29,11 @@ void ff_vector_fmul_sse(float *dst, const float *src0, const float *src1,
void ff_vector_fmul_avx(float *dst, const float *src0, const float *src1,
int len);
void ff_vector_dmul_sse2(double *dst, const double *src0, const double *src1,
int len);
void ff_vector_dmul_avx(double *dst, const double *src0, const double *src1,
int len);
void ff_vector_fmac_scalar_sse(float *dst, const float *src, float mul,
int len);
void ff_vector_fmac_scalar_avx(float *dst, const float *src, float mul,
@ -92,11 +97,13 @@ av_cold void ff_float_dsp_init_x86(AVFloatDSPContext *fdsp)
fdsp->butterflies_float = ff_butterflies_float_sse;
}
if (EXTERNAL_SSE2(cpu_flags)) {
fdsp->vector_dmul = ff_vector_dmul_sse2;
fdsp->vector_dmac_scalar = ff_vector_dmac_scalar_sse2;
fdsp->vector_dmul_scalar = ff_vector_dmul_scalar_sse2;
}
if (EXTERNAL_AVX_FAST(cpu_flags)) {
fdsp->vector_fmul = ff_vector_fmul_avx;
fdsp->vector_dmul = ff_vector_dmul_avx;
fdsp->vector_fmac_scalar = ff_vector_fmac_scalar_avx;
fdsp->vector_dmul_scalar = ff_vector_dmul_scalar_avx;
fdsp->vector_dmac_scalar = ff_vector_dmac_scalar_avx;