mirror of https://git.ffmpeg.org/ffmpeg.git
77 lines
2.7 KiB
ArmAsm
77 lines
2.7 KiB
ArmAsm
/*
|
|
* ARM NEON optimised Format Conversion Utils
|
|
* Copyright (c) 2008 Mans Rullgard <mans@mansr.com>
|
|
* Copyright (c) 2015 Janne Grunau <janne-libav@jannau.net>
|
|
*
|
|
* This file is part of FFmpeg.
|
|
*
|
|
* FFmpeg 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.
|
|
*
|
|
* 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
|
|
* Lesser General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU Lesser 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 "config.h"
|
|
#include "libavutil/aarch64/asm.S"
|
|
|
|
function ff_int32_to_float_fmul_scalar_neon, export=1
|
|
ld1 {v1.4s,v2.4s}, [x1], #32
|
|
scvtf v1.4s, v1.4s
|
|
scvtf v2.4s, v2.4s
|
|
1:
|
|
subs w2, w2, #8
|
|
fmul v3.4s, v1.4s, v0.s[0]
|
|
fmul v4.4s, v2.4s, v0.s[0]
|
|
b.le 2f
|
|
ld1 {v1.4s,v2.4s}, [x1], #32
|
|
st1 {v3.4s,v4.4s}, [x0], #32
|
|
scvtf v1.4s, v1.4s
|
|
scvtf v2.4s, v2.4s
|
|
b 1b
|
|
2:
|
|
st1 {v3.4s,v4.4s}, [x0]
|
|
ret
|
|
endfunc
|
|
|
|
function ff_int32_to_float_fmul_array8_neon, export=1
|
|
lsr w4, w4, #3
|
|
subs w5, w4, #1
|
|
b.eq 1f
|
|
2:
|
|
ld1 {v0.4s,v1.4s}, [x2], #32
|
|
ld1 {v2.4s,v3.4s}, [x2], #32
|
|
scvtf v0.4s, v0.4s
|
|
scvtf v1.4s, v1.4s
|
|
ld1 {v16.2s}, [x3], #8
|
|
scvtf v2.4s, v2.4s
|
|
scvtf v3.4s, v3.4s
|
|
fmul v4.4s, v0.4s, v16.s[0]
|
|
fmul v5.4s, v1.4s, v16.s[0]
|
|
fmul v6.4s, v2.4s, v16.s[1]
|
|
fmul v7.4s, v3.4s, v16.s[1]
|
|
st1 {v4.4s,v5.4s}, [x1], #32
|
|
st1 {v6.4s,v7.4s}, [x1], #32
|
|
subs w5, w5, #2
|
|
b.gt 2b
|
|
b.eq 1f
|
|
ret
|
|
1:
|
|
ld1 {v0.4s,v1.4s}, [x2]
|
|
ld1 {v16.s}[0], [x3]
|
|
scvtf v0.4s, v0.4s
|
|
scvtf v1.4s, v1.4s
|
|
fmul v4.4s, v0.4s, v16.s[0]
|
|
fmul v5.4s, v1.4s, v16.s[0]
|
|
st1 {v4.4s,v5.4s}, [x1]
|
|
ret
|
|
endfunc
|