/*
* Copyright (c) 2009 Mans Rullgard <mans@mansr.com>
*
* 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/aarch64/asm.S"
.macro ldcol.8 rd, rs, rt, n=8, hi=0
.if \n >= 8 || \hi == 0
ld1 {\rd\().b}[0], [\rs], \rt
ld1 {\rd\().b}[1], [\rs], \rt
ld1 {\rd\().b}[2], [\rs], \rt
ld1 {\rd\().b}[3], [\rs], \rt
.endif
.if \n >= 8 || \hi == 1
ld1 {\rd\().b}[4], [\rs], \rt
ld1 {\rd\().b}[5], [\rs], \rt
ld1 {\rd\().b}[6], [\rs], \rt
ld1 {\rd\().b}[7], [\rs], \rt
.endif
.if \n == 16
ld1 {\rd\().b}[8], [\rs], \rt
ld1 {\rd\().b}[9], [\rs], \rt
ld1 {\rd\().b}[10], [\rs], \rt
ld1 {\rd\().b}[11], [\rs], \rt
ld1 {\rd\().b}[12], [\rs], \rt
ld1 {\rd\().b}[13], [\rs], \rt
ld1 {\rd\().b}[14], [\rs], \rt
ld1 {\rd\().b}[15], [\rs], \rt
.endif
.endm
function ff_pred16x16_128_dc_neon, export=1
movi v0.16b, #128
b .L_pred16x16_dc_end
endfunc
function ff_pred16x16_top_dc_neon, export=1
sub x2, x0, x1
ld1 {v0.16b}, [x2]
uaddlv h0, v0.16b
rshrn v0.8b, v0.8h, #4
dup v0.16b, v0.b[0]
b .L_pred16x16_dc_end
endfunc
function ff_pred16x16_left_dc_neon, export=1
sub x2, x0, #1
ldcol.8 v0, x2, x1, 16
uaddlv h0, v0.16b
rshrn v0.8b, v0.8h, #4
dup v0.16b, v0.b[0]
b .L_pred16x16_dc_end
endfunc
function ff_pred16x16_dc_neon, export=1
sub x2, x0, x1
sub x3, x0, #1
ld1 {v0.16b}, [x2]
ldcol.8 v1, x3, x1, 16
uaddlv h0, v0.16b
uaddlv h1, v1.16b
add v0.4h, v0.4h, v1.4h
rshrn v0.8b, v0.8h, #5
dup v0.16b, v0.b[0]
.L_pred16x16_dc_end:
mov w3, #8
6: st1 {v0.16b}, [x0], x1
st1 {v0.16b}, [x0], x1
subs w3, w3, #1
b.ne 6b
ret
endfunc
function ff_pred16x16_hor_neon, export=1
sub x2, x0, #1
mov w3, #16
1: ld1r {v0.16b}, [x2], x1
st1 {v0.16b}, [x0], x1
subs w3, w3, #1
b.ne 1b
ret
endfunc
function ff_pred16x16_vert_neon, export=1
sub x2, x0, x1
add x1, x1, x1
ld1 {v0.16b}, [x2], x1
mov w3, #8
1: st1 {v0.16b}, [x0], x1
st1 {v0.16b}, [x2], x1
subs w3, w3, #1
b.ne 1b
ret
endfunc
function ff_pred16x16_plane_neon, export=1
sub x3, x0, x1
movrel x4, p16weight
add x2, x3, #8
sub x3, x3, #1
ld1 {v0.8b}, [x3]
ld1 {v2.8b}, [x2], x1
ldcol.8 v1, x3, x1
add x3, x3, x1
ldcol.8 v3, x3, x1
rev64 v0.8b, v0.8b
rev64 v1.8b, v1.8b
uaddl v7.8h, v2.8b, v3.8b
usubl v2.8h, v2.8b, v0.8b
usubl v3.8h, v3.8b, v1.8b
ld1 {v0.8h}, [x4]
mul v2.8h, v2.8h, v0.8h
mul v3.8h, v3.8h, v0.8h
addp v2.8h, v2.8h, v3.8h
addp v2.8h, v2.8h, v2.8h
addp v2.4h, v2.4h, v2.4h
sshll v3.4s, v2.4h, #2
saddw v2.4s, v3.4s, v2.4h
rshrn v4.4h, v2.4s, #6
trn2 v5.4h, v4.4h, v4.4h
add v2.4h, v4.4h, v5.4h
shl v3.4h, v2.4h, #3
ext v7.16b, v7.16b, v7.16b, #14
sub v3.4h, v3.4h, v2.4h // 7 * (b + c)
add v7.4h, v7.4h, v0.4h
shl v2.4h, v7.4h, #4
sub v2.4h, v2.4h, v3.4h
shl v3.4h, v4.4h, #4
ext v0.16b, v0.16b, v0.16b, #14
sub v6.4h, v5.4h, v3.4h
mov v0.h[0], wzr
mul v0.8h, v0.8h, v4.h[0]
dup v1.8h, v2.h[0]
dup v2.8h, v4.h[0]
dup v3.8h, v6.h[0]
shl v2.8h, v2.8h, #3
add v1.8h, v1.8h, v0.8h
add v3.8h, v3.8h, v2.8h
mov w3, #16
1:
sqshrun v0.8b, v1.8h, #5
add v1.8h, v1.8h, v2.8h
sqshrun2 v0.16b, v1.8h, #5
add v1.8h, v1.8h, v3.8h
st1 {v0.16b}, [x0], x1
subs w3, w3, #1
b.ne 1b
ret
endfunc
const p16weight, align=4
.short 1,2,3,4,5,6,7,8
endconst
const p8weight, align=4
.short 1,2,3,4,1,2,3,4
endconst
function ff_pred8x8_hor_neon, export=1
sub x2, x0, #1
mov w3, #8
1: ld1r {v0.8b}, [x2], x1
st1 {v0.8b}, [x0], x1
subs w3, w3, #1
b.ne 1b
ret
endfunc
function ff_pred8x8_vert_neon, export=1
sub x2, x0, x1
lsl x1, x1, #1
ld1 {v0.8b}, [x2], x1
mov w3, #4
1: st1 {v0.8b}, [x0], x1
st1 {v0.8b}, [x2], x1
subs w3, w3, #1
b.ne 1b
ret
endfunc
function ff_pred8x8_plane_neon, export=1
sub x3, x0, x1
movrel x4, p8weight
movrel x5, p16weight
add x2, x3, #4
sub x3, x3, #1
ld1 {v0.s}[0], [x3]
ld1 {v2.s}[0], [x2], x1
ldcol.8 v0, x3, x1, 4, hi=1
add x3, x3, x1
ldcol.8 v3, x3, x1, 4
uaddl v7.8h, v2.8b, v3.8b
rev32 v0.8b, v0.8b
trn1 v2.2s, v2.2s, v3.2s
usubl v2.8h, v2.8b, v0.8b
ld1 {v6.8h}, [x4]
mul v2.8h, v2.8h, v6.8h
ld1 {v0.8h}, [x5]
saddlp v2.4s, v2.8h
addp v2.4s, v2.4s, v2.4s
shl v3.4s, v2.4s, #4
add v2.4s, v3.4s, v2.4s
rshrn v5.4h, v2.4s, #5
addp v2.4h, v5.4h, v5.4h
shl v3.4h, v2.4h, #1
add v3.4h, v3.4h, v2.4h
rev64 v7.4h, v7.4h
add v7.4h, v7.4h, v0.4h
shl v2.4h, v7.4h, #4
sub v2.4h, v2.4h, v3.4h
ext v0.16b, v0.16b, v0.16b, #14
mov v0.h[0], wzr
mul v0.8h, v0.8h, v5.h[0]
dup v1.8h, v2.h[0]
dup v2.8h, v5.h[1]
add v1.8h, v1.8h, v0.8h
mov w3, #8
1:
sqshrun v0.8b, v1.8h, #5
add v1.8h, v1.8h, v2.8h
st1 {v0.8b}, [x0], x1
subs w3, w3, #1
b.ne 1b
ret
endfunc
function ff_pred8x8_128_dc_neon, export=1
movi v0.8b, #128
movi v1.8b, #128
b .L_pred8x8_dc_end
endfunc
function ff_pred8x8_top_dc_neon, export=1
sub x2, x0, x1
ld1 {v0.8b}, [x2]
uaddlp v0.4h, v0.8b
addp v0.4h, v0.4h, v0.4h
zip1 v0.8h, v0.8h, v0.8h
rshrn v2.8b, v0.8h, #2
zip1 v0.8b, v2.8b, v2.8b
zip1 v1.8b, v2.8b, v2.8b
b .L_pred8x8_dc_end
endfunc
function ff_pred8x8_left_dc_neon, export=1
sub x2, x0, #1
ldcol.8 v0, x2, x1
uaddlp v0.4h, v0.8b
addp v0.4h, v0.4h, v0.4h
rshrn v2.8b, v0.8h, #2
dup v1.8b, v2.b[1]
dup v0.8b, v2.b[0]
b .L_pred8x8_dc_end
endfunc
function ff_pred8x8_dc_neon, export=1
sub x2, x0, x1
sub x3, x0, #1
ld1 {v0.8b}, [x2]
ldcol.8 v1, x3, x1
uaddlp v0.4h, v0.8b
uaddlp v1.4h, v1.8b
trn1 v2.2s, v0.2s, v1.2s
trn2 v3.2s, v0.2s, v1.2s
addp v4.4h, v2.4h, v3.4h
addp v5.4h, v4.4h, v4.4h
rshrn v6.8b, v5.8h, #3
rshrn v7.8b, v4.8h, #2
dup v0.8b, v6.b[0]
dup v2.8b, v7.b[2]
dup v1.8b, v7.b[3]
dup v3.8b, v6.b[1]
zip1 v0.2s, v0.2s, v2.2s
zip1 v1.2s, v1.2s, v3.2s
.L_pred8x8_dc_end:
mov w3, #4
add x2, x0, x1, lsl #2
6: st1 {v0.8b}, [x0], x1
st1 {v1.8b}, [x2], x1
subs w3, w3, #1
b.ne 6b
ret
endfunc
function ff_pred8x8_l0t_dc_neon, export=1
sub x2, x0, x1
sub x3, x0, #1
ld1 {v0.8b}, [x2]
ldcol.8 v1, x3, x1, 4
zip1 v0.4s, v0.4s, v1.4s
uaddlp v0.8h, v0.16b
addp v0.8h, v0.8h, v0.8h
addp v1.4h, v0.4h, v0.4h
rshrn v2.8b, v0.8h, #2
rshrn v3.8b, v1.8h, #3
dup v4.8b, v3.b[0]
dup v6.8b, v2.b[2]
dup v5.8b, v2.b[0]
zip1 v0.2s, v4.2s, v6.2s
zip1 v1.2s, v5.2s, v6.2s
b .L_pred8x8_dc_end
endfunc
function ff_pred8x8_l00_dc_neon, export=1
sub x2, x0, #1
ldcol.8 v0, x2, x1, 4
uaddlp v0.4h, v0.8b
addp v0.4h, v0.4h, v0.4h
rshrn v0.8b, v0.8h, #2
movi v1.8b, #128
dup v0.8b, v0.b[0]
b .L_pred8x8_dc_end
endfunc
function ff_pred8x8_0lt_dc_neon, export=1
add x3, x0, x1, lsl #2
sub x2, x0, x1
sub x3, x3, #1
ld1 {v0.8b}, [x2]
ldcol.8 v1, x3, x1, 4, hi=1
zip1 v0.4s, v0.4s, v1.4s
uaddlp v0.8h, v0.16b
addp v0.8h, v0.8h, v0.8h
addp v1.4h, v0.4h, v0.4h
rshrn v2.8b, v0.8h, #2
rshrn v3.8b, v1.8h, #3
dup v4.8b, v2.b[0]
dup v5.8b, v2.b[3]
dup v6.8b, v2.b[2]
dup v7.8b, v3.b[1]
zip1 v0.2s, v4.2s, v6.2s
zip1 v1.2s, v5.2s, v7.2s
b .L_pred8x8_dc_end
endfunc
function ff_pred8x8_0l0_dc_neon, export=1
add x2, x0, x1, lsl #2
sub x2, x2, #1
ldcol.8 v1, x2, x1, 4
uaddlp v2.4h, v1.8b
addp v2.4h, v2.4h, v2.4h
rshrn v1.8b, v2.8h, #2
movi v0.8b, #128
dup v1.8b, v1.b[0]
b .L_pred8x8_dc_end
endfunc