09c2d08c
 Hu Chunming
arm交付版
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/*
* Copyright (c) 2020 Martin Storsjo
*
* 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 "libavutil/aarch64/asm.S"
function ff_get_pixels_neon, export=1
mov w3, #8
1:
ld1 {v0.8b}, [x1], x2
subs w3, w3, #2
ld1 {v1.8b}, [x1], x2
uxtl v0.8h, v0.8b
uxtl v1.8h, v1.8b
st1 {v0.8h, v1.8h}, [x0], #32
b.gt 1b
ret
endfunc
function ff_diff_pixels_neon, export=1
mov w4, #8
1:
ld1 {v0.8b}, [x1], x3
ld1 {v1.8b}, [x2], x3
subs w4, w4, #2
ld1 {v2.8b}, [x1], x3
usubl v0.8h, v0.8b, v1.8b
ld1 {v3.8b}, [x2], x3
usubl v1.8h, v2.8b, v3.8b
st1 {v0.8h, v1.8h}, [x0], #32
b.gt 1b
ret
endfunc
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