mirror of https://github.com/FFmpeg/FFmpeg.git
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
61 lines
2.0 KiB
61 lines
2.0 KiB
/* |
|
* Copyright (c) 2024 Institue of Software Chinese Academy of Sciences (ISCAS). |
|
* |
|
* 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 "libavcodec/riscv/h26x/asm.S" |
|
|
|
.macro func_sad vlen |
|
func ff_vvc_sad_rvv_\vlen, zve32x, zbb, zba |
|
lpad 0 |
|
slli t2, a3, 7 // dy * 128 |
|
li t1, 4*128+4 |
|
add t3, t2, a2 // dy * 128 + dx |
|
sub t1, t1, t2 |
|
sub t1, t1, a2 |
|
sh1add a0, t3, a0 |
|
sh1add a1, t1, a1 |
|
li t3, 16 |
|
beq a4, t3, SADVSET\vlen\()16 |
|
.irp w,8,16 |
|
SADVSET\vlen\w: |
|
vsetvlstatic32 \w, \vlen |
|
vmv.v.i v0, 0 |
|
vmv.s.x v24, zero |
|
vsetvlstatic16 \w, \vlen |
|
SAD\vlen\w: |
|
addi a5, a5, -2 |
|
vle16.v v8, (a0) |
|
vle16.v v16, (a1) |
|
vsub.vv v8, v8, v16 |
|
vneg.v v16, v8 |
|
addi a0, a0, 2 * 128 * 2 |
|
vmax.vv v8, v8, v16 |
|
vwaddu.wv v0, v0, v8 |
|
addi a1, a1, 2 * 128 * 2 |
|
bnez a5, SAD\vlen\w |
|
vsetvlstatic32 \w, \vlen |
|
vredsum.vs v24, v0, v24 |
|
vmv.x.s a0, v24 |
|
ret |
|
.endr |
|
endfunc |
|
.endm |
|
|
|
func_sad 256 |
|
func_sad 128
|
|
|