ref: 2d5a94ca75b4421185704e6f8f6b4c33e55cdda6
dir: /codec/common/arm64/expand_picture_aarch64_neon.S/
/*!
* \copy
* Copyright (c) 2013, Cisco Systems
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
* COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*
*/
#ifdef HAVE_NEON_AARCH64
.text
#include "arm_arch64_common_macro.S"
WELS_ASM_AARCH64_FUNC_BEGIN ExpandPictureLuma_AArch64_neon
mov x7, x0
mov x8, x3
add x4, x7, x2
sub x4, x4, #1
mov x10, #16
//For the left and right expand
_expand_picture_luma_loop2:
sub x5, x7, #32
add x6, x4, #1
ld1r {v0.16b}, [x7], x1
ld1r {v2.16b}, [x4], x1
mov.16b v1, v0
mov.16b v3, v2
st2 {v0.16b, v1.16b}, [x5]
st2 {v2.16b, v3.16b}, [x6]
sub x8, x8, #1
cbnz x8, _expand_picture_luma_loop2
//for the top and bottom expand
add x2, x2, #64
sub x0, x0, #32
madd x4, x1, x3, x0
sub x4, x4, x1
_expand_picture_luma_loop0:
mov x5, #32
msub x5, x5, x1, x0
add x6, x4, x1
ld1 {v0.16b}, [x0], x10
ld1 {v1.16b}, [x4], x10
mov x8, #32
_expand_picture_luma_loop1:
st1 {v0.16b}, [x5], x1
st1 {v1.16b}, [x6], x1
sub x8, x8, #1
cbnz x8, _expand_picture_luma_loop1
sub x2, x2, #16
cbnz x2, _expand_picture_luma_loop0
WELS_ASM_AARCH64_FUNC_END
WELS_ASM_AARCH64_FUNC_BEGIN ExpandPictureChroma_AArch64_neon
//Save the dst
mov x7, x0
mov x8, x3
mov x10, #16
add x4, x7, x2
sub x4, x4, #1
//For the left and right expand
_expand_picture_chroma_loop2:
sub x5, x7, #16
add x6, x4, #1
ld1r {v0.16b}, [x7], x1
ld1r {v1.16b}, [x4], x1
st1 {v0.16b}, [x5]
st1 {v1.16b}, [x6]
sub x8, x8, #1
cbnz x8, _expand_picture_chroma_loop2
//for the top and bottom expand
add x2, x2, #32
//
mov x9, x2
mov x11, #15
bic x2, x2, x11
//
sub x0, x0, #16
madd x4, x1, x3, x0
sub x4, x4, x1
_expand_picture_chroma_loop0:
mov x5, #16
msub x5, x5, x1, x0
add x6, x4, x1
ld1 {v0.16b}, [x0], x10
ld1 {v1.16b}, [x4], x10
mov x8, #16
_expand_picture_chroma_loop1:
st1 {v0.16b}, [x5], x1
st1 {v1.16b}, [x6], x1
sub x8, x8, #1
cbnz x8, _expand_picture_chroma_loop1
sub x2, x2, #16
cbnz x2, _expand_picture_chroma_loop0
and x9, x9, #15
sub x9, x9, #8
cbnz x9, _expand_picture_chroma_end
mov x5, #16
msub x5, x5, x1, x0
add x6, x4, x1
ld1 {v0.8b}, [x0]
ld1 {v1.8b}, [x4]
mov x8, #16
_expand_picture_chroma_loop3:
st1 {v0.8b}, [x5], x1
st1 {v1.8b}, [x6], x1
sub x8, x8, #1
cbnz x8, _expand_picture_chroma_loop3
_expand_picture_chroma_end:
WELS_ASM_AARCH64_FUNC_END
#endif