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.
174 lines
4.2 KiB
174 lines
4.2 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_shuffle_bytes_0321_rvv, zve32x |
|
li t1, 0x00ff00ff |
|
j 1f |
|
endfunc |
|
|
|
func ff_shuffle_bytes_2103_rvv, zve32x |
|
li t1, ~0x00ff00ff |
|
1: |
|
not t2, t1 |
|
srai a2, a2, 2 |
|
2: |
|
vsetvli t0, a2, e32, m8, ta, ma |
|
vle32.v v8, (a0) |
|
sub a2, a2, t0 |
|
vand.vx v16, v8, t2 |
|
sh2add a0, t0, a0 |
|
vand.vx v8, v8, t1 |
|
vsrl.vi v24, v16, 16 |
|
vsll.vi v16, v16, 16 |
|
vor.vv v8, v8, v24 |
|
vor.vv v8, v16, v8 |
|
vse32.v v8, (a1) |
|
sh2add a1, t0, a1 |
|
bnez a2, 2b |
|
|
|
ret |
|
endfunc |
|
|
|
func ff_shuffle_bytes_1230_rvv, zve32x |
|
li t1, 24 |
|
li t2, 8 |
|
j 3f |
|
endfunc |
|
|
|
func ff_shuffle_bytes_3012_rvv, zve32x |
|
li t1, 8 |
|
li t2, 24 |
|
3: |
|
srai a2, a2, 2 |
|
4: |
|
vsetvli t0, a2, e32, m8, ta, ma |
|
vle32.v v8, (a0) |
|
sub a2, a2, t0 |
|
vsll.vx v16, v8, t1 |
|
sh2add a0, t0, a0 |
|
vsrl.vx v8, v8, t2 |
|
vor.vv v16, v16, v8 |
|
vse32.v v16, (a1) |
|
sh2add a1, t0, a1 |
|
bnez a2, 4b |
|
|
|
ret |
|
endfunc |
|
|
|
func ff_interleave_bytes_rvv, zve32x |
|
1: |
|
mv t0, a0 |
|
mv t1, a1 |
|
mv t2, a2 |
|
mv t3, a3 |
|
addi a4, a4, -1 |
|
2: |
|
vsetvli t4, t3, e8, m4, ta, ma |
|
sub t3, t3, t4 |
|
vle8.v v8, (t0) |
|
add t0, t4, t0 |
|
vle8.v v12, (t1) |
|
add t1, t4, t1 |
|
vsseg2e8.v v8, (t2) |
|
sh1add t2, t4, t2 |
|
bnez t3, 2b |
|
|
|
add a0, a0, a5 |
|
add a1, a1, a6 |
|
add a2, a2, a7 |
|
bnez a4, 1b |
|
|
|
ret |
|
endfunc |
|
|
|
func ff_deinterleave_bytes_rvv, zve32x |
|
1: |
|
mv t0, a0 |
|
mv t1, a1 |
|
mv t2, a2 |
|
mv t3, a3 |
|
addi a4, a4, -1 |
|
2: |
|
vsetvli t4, t3, e8, m4, ta, ma |
|
sub t3, t3, t4 |
|
vlseg2e8.v v8, (t0) |
|
sh1add t0, t4, t0 |
|
vse8.v v8, (t1) |
|
add t1, t4, t1 |
|
vse8.v v12, (t2) |
|
add t2, t4, t2 |
|
bnez t3, 2b |
|
|
|
add a0, a0, a5 |
|
add a1, a1, a6 |
|
add a2, a2, a7 |
|
bnez a4, 1b |
|
|
|
ret |
|
endfunc |
|
|
|
.macro yuy2_to_i422p luma, chroma |
|
srai t4, a4, 1 // pixel width -> chroma width |
|
lw t6, (sp) |
|
slli t5, a4, 1 // pixel width -> (source) byte width |
|
sub a6, a6, a4 |
|
sub a7, a7, t4 |
|
sub t6, t6, t5 |
|
vsetvli t2, zero, e8, m4, ta, ma |
|
1: |
|
mv t4, a4 |
|
addi a5, a5, -1 |
|
2: |
|
min t0, t2, t4 // ensure even VL on penultimate iteration |
|
vsetvli t0, t0, e8, m4, ta, ma |
|
vlseg2e8.v v16, (a3) |
|
srli t1, t0, 1 |
|
vsetvli zero, t1, e8, m2, ta, ma |
|
vnsrl.wi v24, \chroma, 0 // U |
|
sub t4, t4, t0 |
|
vnsrl.wi v28, \chroma, 8 // V |
|
sh1add a3, t0, a3 |
|
vse8.v v24, (a1) |
|
add a1, t1, a1 |
|
vse8.v v28, (a2) |
|
add a2, t1, a2 |
|
vsetvli zero, t0, e8, m4, ta, ma |
|
vse8.v \luma, (a0) |
|
add a0, t0, a0 |
|
bnez t4, 2b |
|
|
|
add a3, a3, t6 |
|
add a0, a0, a6 |
|
add a1, a1, a7 |
|
add a2, a2, a7 |
|
bnez a5, 1b |
|
|
|
ret |
|
.endm |
|
|
|
func ff_uyvytoyuv422_rvv, zve32x |
|
yuy2_to_i422p v20, v16 |
|
endfunc |
|
|
|
func ff_yuyvtoyuv422_rvv, zve32x |
|
yuy2_to_i422p v16, v20 |
|
endfunc
|
|
|