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/*
* Copyright © 2023 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_restore_rgb_planes_rvv, zve32x
li t1, -0x80
sub a3, a3, a6
sub a4, a4, a6
sub a5, a5, a6
1:
mv t6, a6
addi a7, a7, -1
2:
vsetvli t0, t6, e8, m8, ta, ma
vle8.v v16, (a1)
sub t6, t6, t0
vle8.v v8, (a0)
vadd.vx v16, v16, t1
add a1, t0, a1
vle8.v v24, (a2)
vadd.vv v8, v8, v16
vadd.vv v24, v24, v16
vse8.v v8, (a0)
add a0, t0, a0
vse8.v v24, (a2)
add a2, t0, a2
bnez t6, 2b
add a0, a3, a0
add a1, a4, a1
add a2, a5, a2
bnez a7, 1b
ret
endfunc
func ff_restore_rgb_planes10_rvv, zve32x
li t1, -0x200
li t2, 0x3FF
sub a3, a3, a6
sub a4, a4, a6
sub a5, a5, a6
1:
mv t6, a6
addi a7, a7, -1
2:
vsetvli t0, t6, e16, m8, ta, ma
vle16.v v16, (a1)
sub t6, t6, t0
vle16.v v8, (a0)
vadd.vx v16, v16, t1
sh1add a1, t0, a1
vle16.v v24, (a2)
vadd.vv v8, v8, v16
vadd.vv v24, v24, v16
vand.vx v8, v8, t2
vand.vx v24, v24, t2
vse16.v v8, (a0)
sh1add a0, t0, a0
vse16.v v24, (a2)
sh1add a2, t0, a2
bnez t6, 2b
sh1add a0, a3, a0
sh1add a1, a4, a1
sh1add a2, a5, a2
bnez a7, 1b
ret
endfunc
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