09c2d08c
 Hu Chunming
arm交付版
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/*
* Copyright (c) 2016 Google Inc.
*
* 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"
// All public functions in this file have the following signature:
// typedef void (*vp9_mc_func)(uint8_t *dst, ptrdiff_t dst_stride,
// const uint8_t *ref, ptrdiff_t ref_stride,
// int h, int mx, int my);
function ff_vp9_copy128_aarch64, export=1
1:
ldp x5, x6, [x2]
ldp x7, x8, [x2, #16]
stp x5, x6, [x0]
ldp x9, x10, [x2, #32]
stp x7, x8, [x0, #16]
subs w4, w4, #1
ldp x11, x12, [x2, #48]
stp x9, x10, [x0, #32]
stp x11, x12, [x0, #48]
ldp x5, x6, [x2, #64]
ldp x7, x8, [x2, #80]
stp x5, x6, [x0, #64]
ldp x9, x10, [x2, #96]
stp x7, x8, [x0, #80]
ldp x11, x12, [x2, #112]
stp x9, x10, [x0, #96]
stp x11, x12, [x0, #112]
add x2, x2, x3
add x0, x0, x1
b.ne 1b
ret
endfunc
function ff_vp9_copy64_aarch64, export=1
1:
ldp x5, x6, [x2]
ldp x7, x8, [x2, #16]
stp x5, x6, [x0]
ldp x9, x10, [x2, #32]
stp x7, x8, [x0, #16]
subs w4, w4, #1
ldp x11, x12, [x2, #48]
stp x9, x10, [x0, #32]
stp x11, x12, [x0, #48]
add x2, x2, x3
add x0, x0, x1
b.ne 1b
ret
endfunc
function ff_vp9_copy32_aarch64, export=1
1:
ldp x5, x6, [x2]
ldp x7, x8, [x2, #16]
stp x5, x6, [x0]
subs w4, w4, #1
stp x7, x8, [x0, #16]
add x2, x2, x3
add x0, x0, x1
b.ne 1b
ret
endfunc
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