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.
68 lines
2.1 KiB
68 lines
2.1 KiB
/* |
|
* Copyright © 2022 Rémi Denis-Courmont. |
|
* |
|
* 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/riscv/asm.S" |
|
|
|
func ff_int32_to_float_fmul_scalar_rvv, zve32f, zba |
|
lpad 0 |
|
NOHWF fmv.w.x fa0, a2 |
|
NOHWF mv a2, a3 |
|
1: |
|
vsetvli t0, a2, e32, m8, ta, ma |
|
vle32.v v24, (a1) |
|
sub a2, a2, t0 |
|
vfcvt.f.x.v v24, v24 |
|
sh2add a1, t0, a1 |
|
vfmul.vf v24, v24, fa0 |
|
vse32.v v24, (a0) |
|
sh2add a0, t0, a0 |
|
bnez a2, 1b |
|
|
|
ret |
|
endfunc |
|
|
|
func ff_int32_to_float_fmul_array8_rvv, zve32f, zba |
|
lpad 0 |
|
srai a4, a4, 3 |
|
|
|
1: vsetvli t0, a4, e32, m1, ta, ma |
|
vle32.v v24, (a3) |
|
slli t2, t0, 2 + 3 |
|
vlseg8e32.v v16, (a2) |
|
vsetvli t3, zero, e32, m8, ta, ma |
|
vfcvt.f.x.v v16, v16 |
|
vsetvli zero, a4, e32, m1, ta, ma |
|
vfmul.vv v16, v16, v24 |
|
sub a4, a4, t0 |
|
vfmul.vv v17, v17, v24 |
|
sh2add a3, t0, a3 |
|
vfmul.vv v18, v18, v24 |
|
add a2, a2, t2 |
|
vfmul.vv v19, v19, v24 |
|
vfmul.vv v20, v20, v24 |
|
vfmul.vv v21, v21, v24 |
|
vfmul.vv v22, v22, v24 |
|
vfmul.vv v23, v23, v24 |
|
vsseg8e32.v v16, (a1) |
|
add a1, a1, t2 |
|
bnez a4, 1b |
|
|
|
ret |
|
endfunc
|
|
|