mirror of
https://github.com/FFmpeg/FFmpeg.git
synced 2024-11-26 19:01:44 +02:00
359b6a7f8a
Before: Cortex A53 A72 A78 M1 ac3_sum_square_bufferfly_float_neon: 1005.7 516.5 224.5 194.0 After: ac3_sum_square_bufferfly_float_neon: 981.7 504.5 223.2 189.5 Signed-off-by: J. Dekker <jdek@itanimul.li>
112 lines
3.8 KiB
ArmAsm
112 lines
3.8 KiB
ArmAsm
/*
|
|
* Copyright (c) 2011 Mans Rullgard <mans@mansr.com>
|
|
* Copyright (c) 2024 Geoff Hill <geoff@geoffhill.org>
|
|
*
|
|
* This file is part of FFmpeg.
|
|
*
|
|
* FFmpeg is free software; you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License as published by
|
|
* the Free Software Foundation; either version 2 of the License, or
|
|
* (at your option) any later version.
|
|
*
|
|
* FFmpeg 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 General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License along
|
|
* with FFmpeg; if not, write to the Free Software Foundation, Inc.,
|
|
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
|
|
*/
|
|
|
|
#include "libavutil/aarch64/asm.S"
|
|
|
|
function ff_ac3_exponent_min_neon, export=1
|
|
cbz w1, 3f
|
|
1: ld1 {v0.16b}, [x0]
|
|
mov w3, w1
|
|
add x4, x0, #256
|
|
2: ld1 {v1.16b}, [x4]
|
|
umin v0.16b, v0.16b, v1.16b
|
|
add x4, x4, #256
|
|
subs w3, w3, #1
|
|
b.gt 2b
|
|
st1 {v0.16b}, [x0], #16
|
|
subs w2, w2, #16
|
|
b.gt 1b
|
|
3: ret
|
|
endfunc
|
|
|
|
function ff_ac3_extract_exponents_neon, export=1
|
|
movi v1.4s, #8
|
|
1: ld1 {v0.4s}, [x1], #16
|
|
abs v0.4s, v0.4s
|
|
clz v0.4s, v0.4s
|
|
sub v0.4s, v0.4s, v1.4s
|
|
xtn v0.4h, v0.4s
|
|
xtn v0.8b, v0.8h
|
|
st1 {v0.s}[0], [x0], #4
|
|
subs w2, w2, #4
|
|
b.gt 1b
|
|
ret
|
|
endfunc
|
|
|
|
function ff_float_to_fixed24_neon, export=1
|
|
1: ld1 {v0.4s, v1.4s}, [x1], #32
|
|
fcvtzs v0.4s, v0.4s, #24
|
|
ld1 {v2.4s, v3.4s}, [x1], #32
|
|
fcvtzs v1.4s, v1.4s, #24
|
|
fcvtzs v2.4s, v2.4s, #24
|
|
st1 {v0.4s, v1.4s}, [x0], #32
|
|
fcvtzs v3.4s, v3.4s, #24
|
|
st1 {v2.4s, v3.4s}, [x0], #32
|
|
subs w2, w2, #16
|
|
b.ne 1b
|
|
ret
|
|
endfunc
|
|
|
|
function ff_ac3_sum_square_butterfly_int32_neon, export=1
|
|
movi v0.2d, #0
|
|
movi v1.2d, #0
|
|
movi v2.2d, #0
|
|
movi v3.2d, #0
|
|
1: ld1 {v4.2s}, [x1], #8
|
|
ld1 {v5.2s}, [x2], #8
|
|
add v6.2s, v4.2s, v5.2s
|
|
sub v7.2s, v4.2s, v5.2s
|
|
smlal v0.2d, v4.2s, v4.2s
|
|
smlal v1.2d, v5.2s, v5.2s
|
|
smlal v2.2d, v6.2s, v6.2s
|
|
smlal v3.2d, v7.2s, v7.2s
|
|
subs w3, w3, #2
|
|
b.gt 1b
|
|
addp d0, v0.2d
|
|
addp d1, v1.2d
|
|
addp d2, v2.2d
|
|
addp d3, v3.2d
|
|
st1 {v0.1d-v3.1d}, [x0]
|
|
ret
|
|
endfunc
|
|
|
|
function ff_ac3_sum_square_butterfly_float_neon, export=1
|
|
movi v0.4s, #0
|
|
movi v1.4s, #0
|
|
movi v2.4s, #0
|
|
movi v3.4s, #0
|
|
1: ld1 {v30.4s}, [x1], #16
|
|
ld1 {v31.4s}, [x2], #16
|
|
fadd v16.4s, v30.4s, v31.4s
|
|
fsub v17.4s, v30.4s, v31.4s
|
|
fmla v0.4s, v30.4s, v30.4s
|
|
fmla v1.4s, v31.4s, v31.4s
|
|
fmla v2.4s, v16.4s, v16.4s
|
|
fmla v3.4s, v17.4s, v17.4s
|
|
subs w3, w3, #4
|
|
b.gt 1b
|
|
faddp v0.4s, v0.4s, v1.4s
|
|
faddp v2.4s, v2.4s, v3.4s
|
|
faddp v0.4s, v0.4s, v2.4s
|
|
st1 {v0.4s}, [x0]
|
|
ret
|
|
endfunc
|