mirror of
https://github.com/FFmpeg/FFmpeg.git
synced 2024-11-26 19:01:44 +02:00
aarch64: float_dsp NEON assembler
Ported from arm NEON and added vector_dmul_scalar. Functions between 1.5 and 5 times faster than the C implementations using Apple's clang-503.0.19 on A7.
This commit is contained in:
Janne Grunau
parent
1b51b7ba00
commit
dbd12523a4
@ -1 +1,4 @@
|
||||
OBJS += aarch64/cpu.o
|
||||
OBJS += aarch64/cpu.o \
|
||||
aarch64/float_dsp_init.o \
|
||||
|
||||
NEON-OBJS += aarch64/float_dsp_neon.o
|
||||
|
||||
69
libavutil/aarch64/float_dsp_init.c
Normal file
69
libavutil/aarch64/float_dsp_init.c
Normal file
@ -0,0 +1,69 @@
|
||||
/*
|
||||
* ARM NEON optimised Float DSP functions
|
||||
* Copyright (c) 2008 Mans Rullgard <mans@mansr.com>
|
||||
*
|
||||
* This file is part of Libav.
|
||||
*
|
||||
* Libav is free software; you can redistribute it and/or
|
||||
* modify it under the terms of the GNU Lesser General Public
|
||||
* License as published by the Free Software Foundation; either
|
||||
* version 2.1 of the License, or (at your option) any later version.
|
||||
*
|
||||
* Libav is distributed in the hope that it will be useful,
|
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
||||
* Lesser General Public License for more details.
|
||||
*
|
||||
* You should have received a copy of the GNU Lesser General Public
|
||||
* License along with Libav; if not, write to the Free Software
|
||||
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
|
||||
*/
|
||||
|
||||
#include <stdint.h>
|
||||
|
||||
#include "libavutil/attributes.h"
|
||||
#include "libavutil/cpu.h"
|
||||
#include "libavutil/float_dsp.h"
|
||||
#include "cpu.h"
|
||||
|
||||
void ff_vector_fmul_neon(float *dst, const float *src0, const float *src1,
|
||||
int len);
|
||||
|
||||
void ff_vector_fmac_scalar_neon(float *dst, const float *src, float mul,
|
||||
int len);
|
||||
|
||||
void ff_vector_fmul_scalar_neon(float *dst, const float *src, float mul,
|
||||
int len);
|
||||
|
||||
void ff_vector_dmul_scalar_neon(double *dst, const double *src, double mul,
|
||||
int len);
|
||||
|
||||
void ff_vector_fmul_window_neon(float *dst, const float *src0,
|
||||
const float *src1, const float *win, int len);
|
||||
|
||||
void ff_vector_fmul_add_neon(float *dst, const float *src0, const float *src1,
|
||||
const float *src2, int len);
|
||||
|
||||
void ff_vector_fmul_reverse_neon(float *dst, const float *src0,
|
||||
const float *src1, int len);
|
||||
|
||||
void ff_butterflies_float_neon(float *v1, float *v2, int len);
|
||||
|
||||
float ff_scalarproduct_float_neon(const float *v1, const float *v2, int len);
|
||||
|
||||
av_cold void ff_float_dsp_init_aarch64(AVFloatDSPContext *fdsp)
|
||||
{
|
||||
int cpu_flags = av_get_cpu_flags();
|
||||
|
||||
if (have_neon(cpu_flags)) {
|
||||
fdsp->butterflies_float = ff_butterflies_float_neon;
|
||||
fdsp->scalarproduct_float = ff_scalarproduct_float_neon;
|
||||
fdsp->vector_dmul_scalar = ff_vector_dmul_scalar_neon;
|
||||
fdsp->vector_fmul = ff_vector_fmul_neon;
|
||||
fdsp->vector_fmac_scalar = ff_vector_fmac_scalar_neon;
|
||||
fdsp->vector_fmul_add = ff_vector_fmul_add_neon;
|
||||
fdsp->vector_fmul_reverse = ff_vector_fmul_reverse_neon;
|
||||
fdsp->vector_fmul_scalar = ff_vector_fmul_scalar_neon;
|
||||
fdsp->vector_fmul_window = ff_vector_fmul_window_neon;
|
||||
}
|
||||
}
|
||||
202
libavutil/aarch64/float_dsp_neon.S
Normal file
202
libavutil/aarch64/float_dsp_neon.S
Normal file
@ -0,0 +1,202 @@
|
||||
/*
|
||||
* ARM NEON optimised Float DSP functions
|
||||
* Copyright (c) 2008 Mans Rullgard <mans@mansr.com>
|
||||
* Copyright (c) 2014 Janne Grunau <janne-libav@jannau.net>
|
||||
*
|
||||
* This file is part of Libav.
|
||||
*
|
||||
* Libav is free software; you can redistribute it and/or
|
||||
* modify it under the terms of the GNU Lesser General Public
|
||||
* License as published by the Free Software Foundation; either
|
||||
* version 2.1 of the License, or (at your option) any later version.
|
||||
*
|
||||
* Libav is distributed in the hope that it will be useful,
|
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
||||
* Lesser General Public License for more details.
|
||||
*
|
||||
* You should have received a copy of the GNU Lesser General Public
|
||||
* License along with Libav; if not, write to the Free Software
|
||||
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
|
||||
*/
|
||||
|
||||
#include "config.h"
|
||||
#include "asm.S"
|
||||
|
||||
function ff_vector_fmul_neon, export=1
|
||||
1: subs w3, w3, #16
|
||||
ld1 {v0.4S, v1.4S}, [x1], #32
|
||||
ld1 {v2.4S, v3.4S}, [x1], #32
|
||||
ld1 {v4.4S, v5.4S}, [x2], #32
|
||||
ld1 {v6.4S, v7.4S}, [x2], #32
|
||||
fmul v16.4S, v0.4S, v4.4S
|
||||
fmul v17.4S, v1.4S, v5.4S
|
||||
fmul v18.4S, v2.4S, v6.4S
|
||||
fmul v19.4S, v3.4S, v7.4S
|
||||
st1 {v16.4S, v17.4S}, [x0], #32
|
||||
st1 {v18.4S, v19.4S}, [x0], #32
|
||||
b.ne 1b
|
||||
ret
|
||||
endfunc
|
||||
|
||||
function ff_vector_fmac_scalar_neon, export=1
|
||||
mov x3, #-32
|
||||
1: subs w2, w2, #16
|
||||
ld1 {v16.4S, v17.4S}, [x0], #32
|
||||
ld1 {v18.4S, v19.4S}, [x0], x3
|
||||
ld1 {v4.4S, v5.4S}, [x1], #32
|
||||
ld1 {v6.4S, v7.4S}, [x1], #32
|
||||
fmla v16.4S, v4.4S, v0.S[0]
|
||||
fmla v17.4S, v5.4S, v0.S[0]
|
||||
fmla v18.4S, v6.4S, v0.S[0]
|
||||
fmla v19.4S, v7.4S, v0.S[0]
|
||||
st1 {v16.4S, v17.4S}, [x0], #32
|
||||
st1 {v18.4S, v19.4S}, [x0], #32
|
||||
b.ne 1b
|
||||
ret
|
||||
endfunc
|
||||
|
||||
function ff_vector_fmul_scalar_neon, export=1
|
||||
mov w4, #15
|
||||
bics w3, w2, w4
|
||||
dup v16.4S, v0.S[0]
|
||||
b.eq 3f
|
||||
ld1 {v0.4S, v1.4S}, [x1], #32
|
||||
1: subs w3, w3, #16
|
||||
fmul v0.4S, v0.4S, v16.4S
|
||||
ld1 {v2.4S, v3.4S}, [x1], #32
|
||||
fmul v1.4S, v1.4S, v16.4S
|
||||
fmul v2.4S, v2.4S, v16.4S
|
||||
st1 {v0.4S, v1.4S}, [x0], #32
|
||||
fmul v3.4S, v3.4S, v16.4S
|
||||
b.eq 2f
|
||||
ld1 {v0.4S, v1.4S}, [x1], #32
|
||||
st1 {v2.4S, v3.4S}, [x0], #32
|
||||
b 1b
|
||||
2: ands w2, w2, #15
|
||||
st1 {v2.4S, v3.4S}, [x0], #32
|
||||
b.eq 4f
|
||||
3: ld1 {v0.4S}, [x1], #16
|
||||
fmul v0.4S, v0.4S, v16.4S
|
||||
st1 {v0.4S}, [x0], #16
|
||||
subs w2, w2, #4
|
||||
b.gt 3b
|
||||
4: ret
|
||||
endfunc
|
||||
|
||||
function ff_vector_dmul_scalar_neon, export=1
|
||||
dup v16.2D, v0.D[0]
|
||||
ld1 {v0.2D, v1.2D}, [x1], #32
|
||||
1: subs w2, w2, #8
|
||||
fmul v0.2D, v0.2D, v16.2D
|
||||
ld1 {v2.2D, v3.2D}, [x1], #32
|
||||
fmul v1.2D, v1.2D, v16.2D
|
||||
fmul v2.2D, v2.2D, v16.2D
|
||||
st1 {v0.2D, v1.2D}, [x0], #32
|
||||
fmul v3.2D, v3.2D, v16.2D
|
||||
ld1 {v0.2D, v1.2D}, [x1], #32
|
||||
st1 {v2.2D, v3.2D}, [x0], #32
|
||||
b.gt 1b
|
||||
ret
|
||||
endfunc
|
||||
|
||||
function ff_vector_fmul_window_neon, export=1
|
||||
sxtw x4, w4 // len
|
||||
sub x2, x2, #8
|
||||
sub x5, x4, #2
|
||||
add x2, x2, x5, lsl #2 // src1 + 4 * (len - 4)
|
||||
add x6, x3, x5, lsl #3 // win + 8 * (len - 2)
|
||||
add x5, x0, x5, lsl #3 // dst + 8 * (len - 2)
|
||||
mov x7, #-16
|
||||
ld1 {v0.4S}, [x1], #16 // s0
|
||||
ld1 {v2.4S}, [x3], #16 // wi
|
||||
ld1 {v1.4S}, [x2], x7 // s1
|
||||
1: ld1 {v3.4S}, [x6], x7 // wj
|
||||
subs x4, x4, #4
|
||||
fmul v17.4S, v0.4S, v2.4S // s0 * wi
|
||||
rev64 v4.4S, v1.4S
|
||||
rev64 v5.4S, v3.4S
|
||||
rev64 v17.4S, v17.4S
|
||||
ext v4.16B, v4.16B, v4.16B, #8 // s1_r
|
||||
ext v5.16B, v5.16B, v5.16B, #8 // wj_r
|
||||
ext v17.16B, v17.16B, v17.16B, #8 // (s0 * wi)_rev
|
||||
fmul v16.4S, v0.4S, v5.4S // s0 * wj_r
|
||||
fmla v17.4S, v1.4S, v3.4S // (s0 * wi)_rev + s1 * wj
|
||||
b.eq 2f
|
||||
ld1 {v0.4S}, [x1], #16
|
||||
fmls v16.4S, v4.4S, v2.4S // s0 * wj_r - s1_r * wi
|
||||
st1 {v17.4S}, [x5], x7
|
||||
ld1 {v2.4S}, [x3], #16
|
||||
ld1 {v1.4S}, [x2], x7
|
||||
st1 {v16.4S}, [x0], #16
|
||||
b 1b
|
||||
2:
|
||||
fmls v16.4S, v4.4S, v2.4S // s0 * wj_r - s1_r * wi
|
||||
st1 {v17.4S}, [x5], x7
|
||||
st1 {v16.4S}, [x0], #16
|
||||
ret
|
||||
endfunc
|
||||
|
||||
function ff_vector_fmul_add_neon, export=1
|
||||
ld1 {v0.4S, v1.4S}, [x1], #32
|
||||
ld1 {v2.4S, v3.4S}, [x2], #32
|
||||
ld1 {v4.4S, v5.4S}, [x3], #32
|
||||
1: subs w4, w4, #8
|
||||
fmla v4.4S, v0.4S, v2.4S
|
||||
fmla v5.4S, v1.4S, v3.4S
|
||||
b.eq 2f
|
||||
ld1 {v0.4S, v1.4S}, [x1], #32
|
||||
ld1 {v2.4S, v3.4S}, [x2], #32
|
||||
st1 {v4.4S, v5.4S}, [x0], #32
|
||||
ld1 {v4.4S, v5.4S}, [x3], #32
|
||||
b 1b
|
||||
2: st1 {v4.4S, v5.4S}, [x0], #32
|
||||
ret
|
||||
endfunc
|
||||
|
||||
function ff_vector_fmul_reverse_neon, export=1
|
||||
sxtw x3, w3
|
||||
add x2, x2, x3, lsl #2
|
||||
sub x2, x2, #32
|
||||
mov x4, #-32
|
||||
ld1 {v2.4S, v3.4S}, [x2], x4
|
||||
ld1 {v0.4S, v1.4S}, [x1], #32
|
||||
1: subs x3, x3, #8
|
||||
rev64 v3.4S, v3.4S
|
||||
rev64 v2.4S, v2.4S
|
||||
ext v3.16B, v3.16B, v3.16B, #8
|
||||
ext v2.16B, v2.16B, v2.16B, #8
|
||||
fmul v16.4S, v0.4S, v3.4S
|
||||
fmul v17.4S, v1.4S, v2.4S
|
||||
b.eq 2f
|
||||
ld1 {v2.4S, v3.4S}, [x2], x4
|
||||
ld1 {v0.4S, v1.4S}, [x1], #32
|
||||
st1 {v16.4S, v17.4S}, [x0], #32
|
||||
b 1b
|
||||
2: st1 {v16.4S, v17.4S}, [x0], #32
|
||||
ret
|
||||
endfunc
|
||||
|
||||
function ff_butterflies_float_neon, export=1
|
||||
1: ld1 {v0.4S}, [x0]
|
||||
ld1 {v1.4S}, [x1]
|
||||
subs w2, w2, #4
|
||||
fsub v2.4S, v0.4S, v1.4S
|
||||
fadd v3.4S, v0.4S, v1.4S
|
||||
st1 {v2.4S}, [x1], #16
|
||||
st1 {v3.4S}, [x0], #16
|
||||
b.gt 1b
|
||||
ret
|
||||
endfunc
|
||||
|
||||
function ff_scalarproduct_float_neon, export=1
|
||||
movi v2.4S, #0
|
||||
1: ld1 {v0.4S}, [x0], #16
|
||||
ld1 {v1.4S}, [x1], #16
|
||||
subs w2, w2, #4
|
||||
fmla v2.4S, v0.4S, v1.4S
|
||||
b.gt 1b
|
||||
faddp v0.4S, v2.4S, v2.4S
|
||||
faddp s0, v0.2S
|
||||
ret
|
||||
endfunc
|
||||
@ -124,7 +124,9 @@ av_cold void avpriv_float_dsp_init(AVFloatDSPContext *fdsp, int bit_exact)
|
||||
fdsp->butterflies_float = butterflies_float_c;
|
||||
fdsp->scalarproduct_float = avpriv_scalarproduct_float_c;
|
||||
|
||||
#if ARCH_ARM
|
||||
#if ARCH_AARCH64
|
||||
ff_float_dsp_init_aarch64(fdsp);
|
||||
#elif ARCH_ARM
|
||||
ff_float_dsp_init_arm(fdsp);
|
||||
#elif ARCH_PPC
|
||||
ff_float_dsp_init_ppc(fdsp, bit_exact);
|
||||
|
||||
@ -179,6 +179,7 @@ float avpriv_scalarproduct_float_c(const float *v1, const float *v2, int len);
|
||||
void avpriv_float_dsp_init(AVFloatDSPContext *fdsp, int strict);
|
||||
|
||||
|
||||
void ff_float_dsp_init_aarch64(AVFloatDSPContext *fdsp);
|
||||
void ff_float_dsp_init_arm(AVFloatDSPContext *fdsp);
|
||||
void ff_float_dsp_init_ppc(AVFloatDSPContext *fdsp, int strict);
|
||||
void ff_float_dsp_init_x86(AVFloatDSPContext *fdsp);
|
||||
|
||||
Loading…
Reference in New Issue
Block a user