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/*
* VP8 NEON optimisations
*
* Copyright (c) 2010 Rob Clark <rob@ti.com>
* Copyright (c) 2011 Mans Rullgard <mans@mansr.com>
* Copyright (c) 2018 Magnus Röös <mla2.roos@gmail.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"
#include "neon.S"
function ff_vp8_idct_add_neon, export=1
ld1 {v0.8b - v3.8b}, [x1]
mov w4, #20091
movk w4, #35468/2, lsl #16
dup v4.2s, w4
smull v26.4s, v1.4h, v4.h[0]
smull v27.4s, v3.4h, v4.h[0]
sqdmulh v20.4h, v1.4h, v4.h[1]
sqdmulh v23.4h, v3.4h, v4.h[1]
sqshrn v21.4h, v26.4s, #16
sqshrn v22.4h, v27.4s, #16
add v21.4h, v21.4h, v1.4h
add v22.4h, v22.4h, v3.4h
add v16.4h, v0.4h, v2.4h
sub v17.4h, v0.4h, v2.4h
add v18.4h, v21.4h, v23.4h
sub v19.4h, v20.4h, v22.4h
add v0.4h, v16.4h, v18.4h
add v1.4h, v17.4h, v19.4h
sub v3.4h, v16.4h, v18.4h
sub v2.4h, v17.4h, v19.4h
transpose_4x4H v0, v1, v2, v3, v24, v5, v6, v7
movi v29.8h, #0
smull v26.4s, v1.4h, v4.h[0]
st1 {v29.8h}, [x1], #16
smull v27.4s, v3.4h, v4.h[0]
st1 {v29.16b}, [x1]
sqdmulh v21.4h, v1.4h, v4.h[1]
sqdmulh v23.4h, v3.4h, v4.h[1]
sqshrn v20.4h, v26.4s, #16
sqshrn v22.4h, v27.4s, #16
add v20.4h, v20.4h, v1.4h
add v22.4h, v22.4h, v3.4h
add v16.4h, v0.4h, v2.4h
sub v17.4h, v0.4h, v2.4h
add v18.4h, v20.4h, v23.4h
ld1 {v24.d}[0], [x0], x2
zip1 v16.2d, v16.2d, v17.2d
sub v19.4h, v21.4h, v22.4h
ld1 {v25.d}[0], [x0], x2
zip1 v18.2d, v18.2d, v19.2d
add v0.8h, v16.8h, v18.8h
ld1 {v25.d}[1], [x0], x2
sub v1.8h, v16.8h, v18.8h
ld1 {v24.d}[1], [x0], x2
srshr v0.8h, v0.8h, #3
trn1 v24.4s, v24.4s, v25.4s
srshr v1.8h, v1.8h, #3
sub x0, x0, x2, lsl #2
ext v1.16b, v1.16b, v1.16b, #8
trn1 v3.2d, v0.2d, v1.2d
trn2 v0.2d, v0.2d, v1.2d
trn1 v1.8h, v3.8h, v0.8h
trn2 v3.8h, v3.8h, v0.8h
uzp1 v0.4s, v1.4s, v3.4s
uzp2 v1.4s, v3.4s, v1.4s
uaddw v0.8h, v0.8h, v24.8b
uaddw2 v1.8h, v1.8h, v24.16b
sqxtun v0.8b, v0.8h
sqxtun2 v0.16b, v1.8h
st1 {v0.s}[0], [x0], x2
st1 {v0.s}[1], [x0], x2
st1 {v0.s}[3], [x0], x2
st1 {v0.s}[2], [x0], x2
ret
endfunc
function ff_vp8_idct_dc_add4y_neon, export=1
movi v0.16b, #0
mov x3, #32
ld1r {v16.4h}, [x1]
st1 {v0.h}[0], [x1], x3
ld1r {v17.4h}, [x1]
st1 {v0.h}[0], [x1], x3
zip1 v16.2d, v16.2d, v17.2d
ld1r {v18.4h}, [x1]
st1 {v0.h}[0], [x1], x3
ld1r {v19.4h}, [x1]
st1 {v0.h}[0], [x1], x3
zip1 v18.2d, v18.2d, v19.2d
srshr v16.8h, v16.8h, #3 // dc >>= 3
ld1 {v0.16b}, [x0], x2
srshr v18.8h, v18.8h, #3
ld1 {v1.16b}, [x0], x2
uaddw v20.8h, v16.8h, v0.8b
ld1 {v2.16b}, [x0], x2
uaddw2 v0.8h, v18.8h, v0.16b
ld1 {v3.16b}, [x0], x2
uaddw v21.8h, v16.8h, v1.8b
uaddw2 v1.8h, v18.8h, v1.16b
uaddw v22.8h, v16.8h, v2.8b
uaddw2 v2.8h, v18.8h, v2.16b
uaddw v23.8h, v16.8h, v3.8b
uaddw2 v3.8h, v18.8h, v3.16b
sub x0, x0, x2, lsl #2
sqxtun v20.8b, v20.8h
sqxtun2 v20.16b, v0.8h
sqxtun v21.8b, v21.8h
sqxtun2 v21.16b, v1.8h
sqxtun v22.8b, v22.8h
st1 {v20.16b}, [x0], x2
sqxtun2 v22.16b, v2.8h
st1 {v21.16b}, [x0], x2
sqxtun v23.8b, v23.8h
st1 {v22.16b}, [x0], x2
sqxtun2 v23.16b, v3.8h
st1 {v23.16b}, [x0], x2
ret
endfunc
function ff_vp8_idct_dc_add_neon, export=1
mov w3, #0
ld1r {v2.8h}, [x1]
strh w3, [x1]
srshr v2.8h, v2.8h, #3
ld1 {v0.s}[0], [x0], x2
ld1 {v0.s}[1], [x0], x2
uaddw v3.8h, v2.8h, v0.8b
ld1 {v1.s}[0], [x0], x2
ld1 {v1.s}[1], [x0], x2
uaddw v4.8h, v2.8h, v1.8b
sqxtun v0.8b, v3.8h
sqxtun v1.8b, v4.8h
sub x0, x0, x2, lsl #2
st1 {v0.s}[0], [x0], x2
st1 {v0.s}[1], [x0], x2
st1 {v1.s}[0], [x0], x2
st1 {v1.s}[1], [x0], x2
ret
endfunc
// Register layout:
// P3..Q3 -> v0..v7
// flim_E -> v22
// flim_I -> v23
// hev_thresh -> x5
//
.macro vp8_loop_filter, inner=0, simple=0, hev_thresh
.if \simple
uabd v17.16b, v3.16b, v4.16b // abs(P0-Q0)
uabd v23.16b, v2.16b, v5.16b // abs(P1-Q1)
uqadd v17.16b, v17.16b, v17.16b // abs(P0-Q0) * 2
ushr v18.16b, v23.16b, #1 // abs(P1-Q1) / 2
uqadd v19.16b, v17.16b, v18.16b // (abs(P0-Q0)*2) + (abs(P1-Q1)/2)
movi v21.16b, #0x80
cmhs v16.16b, v22.16b, v19.16b // (abs(P0-Q0)*2) + (abs(P1-Q1)/2) <= flim
.else
// calculate hev and normal_limit:
uabd v20.16b, v2.16b, v3.16b // abs(P1-P0)
uabd v21.16b, v5.16b, v4.16b // abs(Q1-Q0)
uabd v18.16b, v0.16b, v1.16b // abs(P3-P2)
uabd v19.16b, v1.16b, v2.16b // abs(P2-P1)
cmhs v16.16b, v23.16b, v20.16b // abs(P1-P0) <= flim_I
cmhs v17.16b, v23.16b, v21.16b // abs(Q1-Q0) <= flim_I
cmhs v18.16b, v23.16b, v18.16b // abs(P3-P2) <= flim_I
cmhs v19.16b, v23.16b, v19.16b // abs(P2-P1) <= flim_I
and v16.16b, v17.16b, v16.16b
uabd v17.16b, v7.16b, v6.16b // abs(Q3-Q2)
and v16.16b, v16.16b, v19.16b
uabd v19.16b, v6.16b, v5.16b // abs(Q2-Q1)
and v16.16b, v16.16b, v18.16b
cmhs v18.16b, v23.16b, v17.16b // abs(Q3-Q2) <= flim_I
cmhs v19.16b, v23.16b, v19.16b // abs(Q2-Q1) <= flim_I
uabd v17.16b, v3.16b, v4.16b // abs(P0-Q0)
uabd v23.16b, v2.16b, v5.16b // abs(P1-Q1)
and v16.16b, v16.16b, v18.16b
uqadd v17.16b, v17.16b, v17.16b // abs(P0-Q0) * 2
and v16.16b, v16.16b, v19.16b
ushr v18.16b, v23.16b, #1 // abs(P1-Q1) / 2
dup v23.16b, \hev_thresh // hev_thresh
uqadd v19.16b, v17.16b, v18.16b // (abs(P0-Q0)*2) + (abs(P1-Q1)/2)
cmhi v20.16b, v20.16b, v23.16b // abs(P1-P0) > hev_thresh
cmhs v19.16b, v22.16b, v19.16b // (abs(P0-Q0)*2) + (abs(P1-Q1)/2) <= flim_E
cmhi v22.16b, v21.16b, v23.16b // abs(Q1-Q0) > hev_thresh
and v16.16b, v16.16b, v19.16b
movi v21.16b, #0x80
orr v17.16b, v20.16b, v22.16b
.endif
// at this point:
// v16: normal_limit
// v17: hev
// convert to signed value:
eor v3.16b, v3.16b, v21.16b // PS0 = P0 ^ 0x80
eor v4.16b, v4.16b, v21.16b // QS0 = Q0 ^ 0x80
movi v20.8h, #3
ssubl v18.8h, v4.8b, v3.8b // QS0 - PS0
ssubl2 v19.8h, v4.16b, v3.16b // (widened to 16bit)
eor v2.16b, v2.16b, v21.16b // PS1 = P1 ^ 0x80
eor v5.16b, v5.16b, v21.16b // QS1 = Q1 ^ 0x80
mul v18.8h, v18.8h, v20.8h // w = 3 * (QS0 - PS0)
mul v19.8h, v19.8h, v20.8h
sqsub v20.16b, v2.16b, v5.16b // clamp(PS1-QS1)
movi v22.16b, #4
movi v23.16b, #3
.if \inner
and v20.16b, v20.16b, v17.16b // if(hev) w += clamp(PS1-QS1)
.endif
saddw v18.8h, v18.8h, v20.8b // w += clamp(PS1-QS1)
saddw2 v19.8h, v19.8h, v20.16b
sqxtn v18.8b, v18.8h // narrow result back into v18
sqxtn2 v18.16b, v19.8h
.if !\inner && !\simple
eor v1.16b, v1.16b, v21.16b // PS2 = P2 ^ 0x80
eor v6.16b, v6.16b, v21.16b // QS2 = Q2 ^ 0x80
.endif
and v18.16b, v18.16b, v16.16b // w &= normal_limit
// registers used at this point..
// v0 -> P3 (don't corrupt)
// v1-v6 -> PS2-QS2
// v7 -> Q3 (don't corrupt)
// v17 -> hev
// v18 -> w
// v21 -> #0x80
// v22 -> #4
// v23 -> #3
// v16, v19, v29 -> unused
//
// filter_common: is4tap==1
// c1 = clamp(w + 4) >> 3;
// c2 = clamp(w + 3) >> 3;
// Q0 = s2u(QS0 - c1);
// P0 = s2u(PS0 + c2);
.if \simple
sqadd v19.16b, v18.16b, v22.16b // c1 = clamp((w&hev)+4)
sqadd v20.16b, v18.16b, v23.16b // c2 = clamp((w&hev)+3)
sshr v19.16b, v19.16b, #3 // c1 >>= 3
sshr v20.16b, v20.16b, #3 // c2 >>= 3
sqsub v4.16b, v4.16b, v19.16b // QS0 = clamp(QS0-c1)
sqadd v3.16b, v3.16b, v20.16b // PS0 = clamp(PS0+c2)
eor v4.16b, v4.16b, v21.16b // Q0 = QS0 ^ 0x80
eor v3.16b, v3.16b, v21.16b // P0 = PS0 ^ 0x80
eor v5.16b, v5.16b, v21.16b // Q1 = QS1 ^ 0x80
eor v2.16b, v2.16b, v21.16b // P1 = PS1 ^ 0x80
.elseif \inner
// the !is4tap case of filter_common, only used for inner blocks
// c3 = ((c1&~hev) + 1) >> 1;
// Q1 = s2u(QS1 - c3);
// P1 = s2u(PS1 + c3);
sqadd v19.16b, v18.16b, v22.16b // c1 = clamp((w&hev)+4)
sqadd v20.16b, v18.16b, v23.16b // c2 = clamp((w&hev)+3)
sshr v19.16b, v19.16b, #3 // c1 >>= 3
sshr v20.16b, v20.16b, #3 // c2 >>= 3
sqsub v4.16b, v4.16b, v19.16b // QS0 = clamp(QS0-c1)
sqadd v3.16b, v3.16b, v20.16b // PS0 = clamp(PS0+c2)
bic v19.16b, v19.16b, v17.16b // c1 & ~hev
eor v4.16b, v4.16b, v21.16b // Q0 = QS0 ^ 0x80
srshr v19.16b, v19.16b, #1 // c3 >>= 1
eor v3.16b, v3.16b, v21.16b // P0 = PS0 ^ 0x80
sqsub v5.16b, v5.16b, v19.16b // QS1 = clamp(QS1-c3)
sqadd v2.16b, v2.16b, v19.16b // PS1 = clamp(PS1+c3)
eor v5.16b, v5.16b, v21.16b // Q1 = QS1 ^ 0x80
eor v2.16b, v2.16b, v21.16b // P1 = PS1 ^ 0x80
.else
and v20.16b, v18.16b, v17.16b // w & hev
sqadd v19.16b, v20.16b, v22.16b // c1 = clamp((w&hev)+4)
sqadd v20.16b, v20.16b, v23.16b // c2 = clamp((w&hev)+3)
sshr v19.16b, v19.16b, #3 // c1 >>= 3
sshr v20.16b, v20.16b, #3 // c2 >>= 3
bic v18.16b, v18.16b, v17.16b // w &= ~hev
sqsub v4.16b, v4.16b, v19.16b // QS0 = clamp(QS0-c1)
sqadd v3.16b, v3.16b, v20.16b // PS0 = clamp(PS0+c2)
// filter_mbedge:
// a = clamp((27*w + 63) >> 7);
// Q0 = s2u(QS0 - a);
// P0 = s2u(PS0 + a);
// a = clamp((18*w + 63) >> 7);
// Q1 = s2u(QS1 - a);
// P1 = s2u(PS1 + a);
// a = clamp((9*w + 63) >> 7);
// Q2 = s2u(QS2 - a);
// P2 = s2u(PS2 + a);
movi v17.8h, #63
sshll v22.8h, v18.8b, #3
sshll2 v23.8h, v18.16b, #3
saddw v22.8h, v22.8h, v18.8b
saddw2 v23.8h, v23.8h, v18.16b
add v16.8h, v17.8h, v22.8h
add v17.8h, v17.8h, v23.8h // 9*w + 63
add v19.8h, v16.8h, v22.8h
add v20.8h, v17.8h, v23.8h // 18*w + 63
add v22.8h, v19.8h, v22.8h
add v23.8h, v20.8h, v23.8h // 27*w + 63
sqshrn v16.8b, v16.8h, #7
sqshrn2 v16.16b, v17.8h, #7 // clamp(( 9*w + 63)>>7)
sqshrn v19.8b, v19.8h, #7
sqshrn2 v19.16b, v20.8h, #7 // clamp((18*w + 63)>>7)
sqshrn v22.8b, v22.8h, #7
sqshrn2 v22.16b, v23.8h, #7 // clamp((27*w + 63)>>7)
sqadd v1.16b, v1.16b, v16.16b // PS2 = clamp(PS2+a)
sqsub v6.16b, v6.16b, v16.16b // QS2 = clamp(QS2-a)
sqadd v2.16b, v2.16b, v19.16b // PS1 = clamp(PS1+a)
sqsub v5.16b, v5.16b, v19.16b // QS1 = clamp(QS1-a)
sqadd v3.16b, v3.16b, v22.16b // PS0 = clamp(PS0+a)
sqsub v4.16b, v4.16b, v22.16b // QS0 = clamp(QS0-a)
eor v3.16b, v3.16b, v21.16b // P0 = PS0 ^ 0x80
eor v4.16b, v4.16b, v21.16b // Q0 = QS0 ^ 0x80
eor v2.16b, v2.16b, v21.16b // P1 = PS1 ^ 0x80
eor v5.16b, v5.16b, v21.16b // Q1 = QS1 ^ 0x80
eor v1.16b, v1.16b, v21.16b // P2 = PS2 ^ 0x80
eor v6.16b, v6.16b, v21.16b // Q2 = QS2 ^ 0x80
.endif
.endm
.macro vp8_v_loop_filter16 name, inner=0, simple=0
function ff_vp8_v_loop_filter16\name\()_neon, export=1
sub x0, x0, x1, lsl #1+!\simple
// Load pixels:
.if !\simple
ld1 {v0.16b}, [x0], x1 // P3
ld1 {v1.16b}, [x0], x1 // P2
.endif
ld1 {v2.16b}, [x0], x1 // P1
ld1 {v3.16b}, [x0], x1 // P0
ld1 {v4.16b}, [x0], x1 // Q0
ld1 {v5.16b}, [x0], x1 // Q1
.if !\simple
ld1 {v6.16b}, [x0], x1 // Q2
ld1 {v7.16b}, [x0] // Q3
dup v23.16b, w3 // flim_I
.endif
dup v22.16b, w2 // flim_E
vp8_loop_filter inner=\inner, simple=\simple, hev_thresh=w4
// back up to P2: dst -= stride * 6
sub x0, x0, x1, lsl #2
.if !\simple
sub x0, x0, x1, lsl #1
// Store pixels:
st1 {v1.16b}, [x0], x1 // P2
.endif
st1 {v2.16b}, [x0], x1 // P1
st1 {v3.16b}, [x0], x1 // P0
st1 {v4.16b}, [x0], x1 // Q0
st1 {v5.16b}, [x0], x1 // Q1
.if !\simple
st1 {v6.16b}, [x0] // Q2
.endif
ret
endfunc
.endm
vp8_v_loop_filter16
vp8_v_loop_filter16 _inner, inner=1
vp8_v_loop_filter16 _simple, simple=1
.macro vp8_v_loop_filter8uv name, inner=0
function ff_vp8_v_loop_filter8uv\name\()_neon, export=1
sub x0, x0, x2, lsl #2
sub x1, x1, x2, lsl #2
// Load pixels:
ld1 {v0.d}[0], [x0], x2 // P3
ld1 {v0.d}[1], [x1], x2 // P3
ld1 {v1.d}[0], [x0], x2 // P2
ld1 {v1.d}[1], [x1], x2 // P2
ld1 {v2.d}[0], [x0], x2 // P1
ld1 {v2.d}[1], [x1], x2 // P1
ld1 {v3.d}[0], [x0], x2 // P0
ld1 {v3.d}[1], [x1], x2 // P0
ld1 {v4.d}[0], [x0], x2 // Q0
ld1 {v4.d}[1], [x1], x2 // Q0
ld1 {v5.d}[0], [x0], x2 // Q1
ld1 {v5.d}[1], [x1], x2 // Q1
ld1 {v6.d}[0], [x0], x2 // Q2
ld1 {v6.d}[1], [x1], x2 // Q2
ld1 {v7.d}[0], [x0] // Q3
ld1 {v7.d}[1], [x1] // Q3
dup v22.16b, w3 // flim_E
dup v23.16b, w4 // flim_I
vp8_loop_filter inner=\inner, hev_thresh=w5
// back up to P2: u,v -= stride * 6
sub x0, x0, x2, lsl #2
sub x1, x1, x2, lsl #2
sub x0, x0, x2, lsl #1
sub x1, x1, x2, lsl #1
// Store pixels:
st1 {v1.d}[0], [x0], x2 // P2
st1 {v1.d}[1], [x1], x2 // P2
st1 {v2.d}[0], [x0], x2 // P1
st1 {v2.d}[1], [x1], x2 // P1
st1 {v3.d}[0], [x0], x2 // P0
st1 {v3.d}[1], [x1], x2 // P0
st1 {v4.d}[0], [x0], x2 // Q0
st1 {v4.d}[1], [x1], x2 // Q0
st1 {v5.d}[0], [x0], x2 // Q1
st1 {v5.d}[1], [x1], x2 // Q1
st1 {v6.d}[0], [x0] // Q2
st1 {v6.d}[1], [x1] // Q2
ret
endfunc
.endm
vp8_v_loop_filter8uv
vp8_v_loop_filter8uv _inner, inner=1
.macro vp8_h_loop_filter16 name, inner=0, simple=0
function ff_vp8_h_loop_filter16\name\()_neon, export=1
sub x0, x0, #4
// Load pixels:
ld1 {v0.d}[0], [x0], x1
ld1 {v1.d}[0], [x0], x1
ld1 {v2.d}[0], [x0], x1
ld1 {v3.d}[0], [x0], x1
ld1 {v4.d}[0], [x0], x1
ld1 {v5.d}[0], [x0], x1
ld1 {v6.d}[0], [x0], x1
ld1 {v7.d}[0], [x0], x1
ld1 {v0.d}[1], [x0], x1
ld1 {v1.d}[1], [x0], x1
ld1 {v2.d}[1], [x0], x1
ld1 {v3.d}[1], [x0], x1
ld1 {v4.d}[1], [x0], x1
ld1 {v5.d}[1], [x0], x1
ld1 {v6.d}[1], [x0], x1
ld1 {v7.d}[1], [x0], x1
transpose_8x16B v0, v1, v2, v3, v4, v5, v6, v7, v30, v31
dup v22.16b, w2 // flim_E
.if !\simple
dup v23.16b, w3 // flim_I
.endif
vp8_loop_filter inner=\inner, simple=\simple, hev_thresh=w4
sub x0, x0, x1, lsl #4 // backup 16 rows
transpose_8x16B v0, v1, v2, v3, v4, v5, v6, v7, v30, v31
// Store pixels:
st1 {v0.d}[0], [x0], x1
st1 {v1.d}[0], [x0], x1
st1 {v2.d}[0], [x0], x1
st1 {v3.d}[0], [x0], x1
st1 {v4.d}[0], [x0], x1
st1 {v5.d}[0], [x0], x1
st1 {v6.d}[0], [x0], x1
st1 {v7.d}[0], [x0], x1
st1 {v0.d}[1], [x0], x1
st1 {v1.d}[1], [x0], x1
st1 {v2.d}[1], [x0], x1
st1 {v3.d}[1], [x0], x1
st1 {v4.d}[1], [x0], x1
st1 {v5.d}[1], [x0], x1
st1 {v6.d}[1], [x0], x1
st1 {v7.d}[1], [x0]
ret
endfunc
.endm
vp8_h_loop_filter16
vp8_h_loop_filter16 _inner, inner=1
vp8_h_loop_filter16 _simple, simple=1
.macro vp8_h_loop_filter8uv name, inner=0
function ff_vp8_h_loop_filter8uv\name\()_neon, export=1
sub x0, x0, #4
sub x1, x1, #4
// Load pixels:
ld1 {v0.d}[0], [x0], x2 // load u
ld1 {v0.d}[1], [x1], x2 // load v
ld1 {v1.d}[0], [x0], x2
ld1 {v1.d}[1], [x1], x2
ld1 {v2.d}[0], [x0], x2
ld1 {v2.d}[1], [x1], x2
ld1 {v3.d}[0], [x0], x2
ld1 {v3.d}[1], [x1], x2
ld1 {v4.d}[0], [x0], x2
ld1 {v4.d}[1], [x1], x2
ld1 {v5.d}[0], [x0], x2
ld1 {v5.d}[1], [x1], x2
ld1 {v6.d}[0], [x0], x2
ld1 {v6.d}[1], [x1], x2
ld1 {v7.d}[0], [x0], x2
ld1 {v7.d}[1], [x1], x2
transpose_8x16B v0, v1, v2, v3, v4, v5, v6, v7, v30, v31
dup v22.16b, w3 // flim_E
dup v23.16b, w4 // flim_I
vp8_loop_filter inner=\inner, hev_thresh=w5
sub x0, x0, x2, lsl #3 // backup u 8 rows
sub x1, x1, x2, lsl #3 // backup v 8 rows
transpose_8x16B v0, v1, v2, v3, v4, v5, v6, v7, v30, v31
// Store pixels:
st1 {v0.d}[0], [x0], x2 // load u
st1 {v0.d}[1], [x1], x2 // load v
st1 {v1.d}[0], [x0], x2
st1 {v1.d}[1], [x1], x2
st1 {v2.d}[0], [x0], x2
st1 {v2.d}[1], [x1], x2
st1 {v3.d}[0], [x0], x2
st1 {v3.d}[1], [x1], x2
st1 {v4.d}[0], [x0], x2
st1 {v4.d}[1], [x1], x2
st1 {v5.d}[0], [x0], x2
st1 {v5.d}[1], [x1], x2
st1 {v6.d}[0], [x0], x2
st1 {v6.d}[1], [x1], x2
st1 {v7.d}[0], [x0]
st1 {v7.d}[1], [x1]
ret
endfunc
.endm
vp8_h_loop_filter8uv
vp8_h_loop_filter8uv _inner, inner=1
function ff_put_vp8_pixels16_neon, export=1
1:
subs w4, w4, #4
ld1 {v0.16b}, [x2], x3
ld1 {v1.16b}, [x2], x3
ld1 {v2.16b}, [x2], x3
ld1 {v3.16b}, [x2], x3
st1 {v0.16b}, [x0], x1
st1 {v1.16b}, [x0], x1
st1 {v2.16b}, [x0], x1
st1 {v3.16b}, [x0], x1
b.gt 1b
ret
endfunc
function ff_put_vp8_pixels8_neon, export=1
1:
subs w4, w4, #4
ld1 {v0.8b}, [x2], x3
ld1 {v0.d}[1], [x2], x3
ld1 {v1.8b}, [x2], x3
ld1 {v1.d}[1], [x2], x3
st1 {v0.8b}, [x0], x1
st1 {v0.d}[1], [x0], x1
st1 {v1.8b}, [x0], x1
st1 {v1.d}[1], [x0], x1
b.gt 1b
ret
endfunc
/* 4/6-tap 8th-pel MC */
.macro vp8_epel8_h6 d, s0, s1
ext v22.8b, \s0\().8b, \s1\().8b, #1
uxtl v18.8h, \s0\().8b
ext v23.8b, \s0\().8b, \s1\().8b, #2
uxtl v19.8h, v22.8b
ext v24.8b, \s0\().8b, \s1\().8b, #3
uxtl v21.8h, v23.8b
ext v25.8b, \s0\().8b, \s1\().8b, #4
uxtl v22.8h, v24.8b
ext v26.8b, \s0\().8b, \s1\().8b, #5
uxtl v25.8h, v25.8b
mul v21.8h, v21.8h, v0.h[2]
uxtl v26.8h, v26.8b
mul v22.8h, v22.8h, v0.h[3]
mls v21.8h, v19.8h, v0.h[1]
mls v22.8h, v25.8h, v0.h[4]
mla v21.8h, v18.8h, v0.h[0]
mla v22.8h, v26.8h, v0.h[5]
sqadd v22.8h, v21.8h, v22.8h
sqrshrun \d\().8b, v22.8h, #7
.endm
.macro vp8_epel16_h6 d0, v0, v1
ext v22.16b, \v0\().16b, \v1\().16b, #3
ext v23.16b, \v0\().16b, \v1\().16b, #4
uxtl v19.8h, v22.8b
uxtl2 v22.8h, v22.16b
ext v3.16b, \v0\().16b, \v1\().16b, #2
uxtl v20.8h, v23.8b
uxtl2 v23.8h, v23.16b
ext v16.16b, \v0\().16b, \v1\().16b, #1
uxtl v18.8h, v3.8b
uxtl2 v3.8h, v3.16b
ext v2.16b, \v0\().16b, \v1\().16b, #5
uxtl v21.8h, v2.8b
uxtl2 v2.8h, v2.16b
uxtl v17.8h, v16.8b
uxtl2 v16.8h, v16.16b
mul v19.8h, v19.8h, v0.h[3]
mul v18.8h, v18.8h, v0.h[2]
mul v3.8h, v3.8h, v0.h[2]
mul v22.8h, v22.8h, v0.h[3]
mls v19.8h, v20.8h, v0.h[4]
uxtl v20.8h, \v0\().8b
uxtl2 v1.8h, \v0\().16b
mls v18.8h, v17.8h, v0.h[1]
mls v3.8h, v16.8h, v0.h[1]
mls v22.8h, v23.8h, v0.h[4]
mla v18.8h, v20.8h, v0.h[0]
mla v19.8h, v21.8h, v0.h[5]
mla v3.8h, v1.8h, v0.h[0]
mla v22.8h, v2.8h, v0.h[5]
sqadd v19.8h, v18.8h, v19.8h
sqadd v22.8h, v3.8h, v22.8h
sqrshrun \d0\().8b, v19.8h, #7
sqrshrun2 \d0\().16b, v22.8h, #7
.endm
.macro vp8_epel8_v6 d0, s0, s1, s2, s3, s4, s5
uxtl \s2\().8h, \s2\().8b
uxtl \s3\().8h, \s3\().8b
uxtl \s1\().8h, \s1\().8b
uxtl \s4\().8h, \s4\().8b
uxtl \s0\().8h, \s0\().8b
uxtl \s5\().8h, \s5\().8b
mul \s2\().8h, \s2\().8h, v0.h[2]
mul \s3\().8h, \s3\().8h, v0.h[3]
mls \s2\().8h, \s1\().8h, v0.h[1]
mls \s3\().8h, \s4\().8h, v0.h[4]
mla \s2\().8h, \s0\().8h, v0.h[0]
mla \s3\().8h, \s5\().8h, v0.h[5]
sqadd \s3\().8h, \s2\().8h, \s3\().8h
sqrshrun \d0\().8b, \s3\().8h, #7
.endm
.macro vp8_epel8_v6_y2 d0, d1, s0, s1, s2, s3, s4, s5, s6
uxtl \s0\().8h, \s0\().8b
uxtl \s3\().8h, \s3\().8b
uxtl \s6\().8h, \s6\().8b
uxtl \s1\().8h, \s1\().8b
uxtl \s4\().8h, \s4\().8b
uxtl \s2\().8h, \s2\().8b
uxtl \s5\().8h, \s5\().8b
mul \s0\().8h, \s0\().8h, v0.h[0]
mul v31.8h , \s3\().8h, v0.h[3]
mul \s3\().8h, \s3\().8h, v0.h[2]
mul \s6\().8h, \s6\().8h, v0.h[5]
mls \s0\().8h, \s1\().8h, v0.h[1]
mls v31.8h , \s4\().8h, v0.h[4]
mls \s3\().8h, \s2\().8h, v0.h[1]
mls \s6\().8h, \s5\().8h, v0.h[4]
mla \s0\().8h, \s2\().8h, v0.h[2]
mla v31.8h , \s5\().8h, v0.h[5]
mla \s3\().8h, \s1\().8h, v0.h[0]
mla \s6\().8h, \s4\().8h, v0.h[3]
sqadd v31.8h , \s0\().8h, v31.8h
sqadd \s6\().8h, \s3\().8h, \s6\().8h
sqrshrun \d0\().8b, v31.8h, #7
sqrshrun \d1\().8b, \s6\().8h, #7
.endm
.macro vp8_epel8_h4 d, v0, v1
ext v22.8b, \v0\().8b, \v1\().8b, #1
uxtl v19.8h, \v0\().8b
ext v23.8b, \v0\().8b, \v1\().8b, #2
uxtl v20.8h, v22.8b
ext v25.8b, \v0\().8b, \v1\().8b, #3
uxtl v22.8h, v23.8b
uxtl v25.8h, v25.8b
mul v20.8h, v20.8h, v0.h[2]
mul v22.8h, v22.8h, v0.h[3]
mls v20.8h, v19.8h, v0.h[1]
mls v22.8h, v25.8h, v0.h[4]
sqadd v22.8h, v20.8h, v22.8h
sqrshrun \d\().8b, v22.8h, #7
.endm
.macro vp8_epel8_v4_y2 d0, s0, s1, s2, s3, s4
uxtl \s0\().8h, \s0\().8b
uxtl \s1\().8h, \s1\().8b
uxtl \s2\().8h, \s2\().8b
uxtl \s3\().8h, \s3\().8b
uxtl \s4\().8h, \s4\().8b
mul v21.8h, \s1\().8h, v0.h[2]
mul v23.8h, \s2\().8h, v0.h[3]
mul \s2\().8h, \s2\().8h, v0.h[2]
mul v22.8h, \s3\().8h, v0.h[3]
mls v21.8h, \s0\().8h, v0.h[1]
mls v23.8h, \s3\().8h, v0.h[4]
mls \s2\().8h, \s1\().8h, v0.h[1]
mls v22.8h, \s4\().8h, v0.h[4]
sqadd v21.8h, v21.8h, v23.8h
sqadd \s2\().8h, \s2\().8h, v22.8h
sqrshrun \d0\().8b, v21.8h, #7
sqrshrun2 \d0\().16b, \s2\().8h, #7
.endm
// note: worst case sum of all 6-tap filter values * 255 is 0x7f80 so 16 bit
// arithmetic can be used to apply filters
const subpel_filters, align=4
.short 0, 6, 123, 12, 1, 0, 0, 0
.short 2, 11, 108, 36, 8, 1, 0, 0
.short 0, 9, 93, 50, 6, 0, 0, 0
.short 3, 16, 77, 77, 16, 3, 0, 0
.short 0, 6, 50, 93, 9, 0, 0, 0
.short 1, 8, 36, 108, 11, 2, 0, 0
.short 0, 1, 12, 123, 6, 0, 0, 0
endconst
function ff_put_vp8_epel16_v6_neon, export=1
sub x2, x2, x3, lsl #1
sxtw x4, w4
sxtw x6, w6
movrel x17, subpel_filters, -16
add x6, x17, x6, lsl #4 // y
ld1 {v0.8h}, [x6]
1:
ld1 {v1.1d - v2.1d}, [x2], x3
ld1 {v3.1d - v4.1d}, [x2], x3
ld1 {v16.1d - v17.1d}, [x2], x3
ld1 {v18.1d - v19.1d}, [x2], x3
ld1 {v20.1d - v21.1d}, [x2], x3
ld1 {v22.1d - v23.1d}, [x2], x3
ld1 {v24.1d - v25.1d}, [x2]
sub x2, x2, x3, lsl #2
vp8_epel8_v6_y2 v1, v3, v1, v3, v16, v18, v20, v22, v24
vp8_epel8_v6_y2 v2, v4, v2, v4, v17, v19, v21, v23, v25
st1 {v1.1d - v2.1d}, [x0], x1
st1 {v3.1d - v4.1d}, [x0], x1
subs x4, x4, #2
b.ne 1b
ret
endfunc
function ff_put_vp8_epel16_h6_neon, export=1
sub x2, x2, #2
sxtw x5, w5 // x
// first pass (horizontal):
movrel x17, subpel_filters, -16
add x5, x17, x5, lsl #4 // x
ld1 {v0.8h}, [x5]
1:
ld1 {v1.16b, v2.16b}, [x2], x3
vp8_epel16_h6 v1, v1, v2
st1 {v1.16b}, [x0], x1
subs w4, w4, #1
b.ne 1b
ret
endfunc
function ff_put_vp8_epel16_h6v6_neon, export=1
sub x2, x2, x3, lsl #1
sub x2, x2, #2
// first pass (horizontal):
movrel x17, subpel_filters, -16
sxtw x5, w5 // x
add x16, x17, x5, lsl #4 // x
sub sp, sp, #336+16
ld1 {v0.8h}, [x16]
add x7, sp, #15
sxtw x4, w4
add x16, x4, #5 // h
bic x7, x7, #15
1:
ld1 {v1.16b, v2.16b}, [x2], x3
vp8_epel16_h6 v1, v1, v2
st1 {v1.16b}, [x7], #16
subs x16, x16, #1
b.ne 1b
// second pass (vertical):
sxtw x6, w6
add x6, x17, x6, lsl #4 // y
add x7, sp, #15
ld1 {v0.8h}, [x6]
bic x7, x7, #15
2:
ld1 {v1.8b - v4.8b}, [x7], #32
ld1 {v16.8b - v19.8b}, [x7], #32
ld1 {v20.8b - v23.8b}, [x7]
sub x7, x7, #48
vp8_epel8_v6 v5, v1, v3, v16, v18, v20, v22
vp8_epel8_v6 v2, v2, v4, v17, v19, v21, v23
trn1 v2.2d, v5.2d, v2.2d
st1 {v2.16b}, [x0], x1
subs x4, x4, #1
b.ne 2b
add sp, sp, #336+16
ret
endfunc
function ff_put_vp8_epel8_h6v6_neon, export=1
sub x2, x2, x3, lsl #1
sub x2, x2, #2
sxtw x4, w4
// first pass (horizontal):
movrel x17, subpel_filters, -16
sxtw x5, w5
add x5, x17, x5, lsl #4 // x
sub sp, sp, #168+16
ld1 {v0.8h}, [x5]
add x7, sp, #15
add x16, x4, #5 // h
bic x7, x7, #15
1:
ld1 {v1.8b, v2.8b}, [x2], x3
vp8_epel8_h6 v1, v1, v2
st1 {v1.8b}, [x7], #8
subs x16, x16, #1
b.ne 1b
// second pass (vertical):
sxtw x6, w6
add x6, x17, x6, lsl #4 // y
add x7, sp, #15
ld1 {v0.8h}, [x6]
bic x7, x7, #15
2:
ld1 {v1.8b - v4.8b}, [x7], #32
ld1 {v5.8b - v7.8b}, [x7]
sub x7, x7, #16
vp8_epel8_v6_y2 v1, v2, v1, v2, v3, v4, v5, v6, v7
st1 {v1.8b}, [x0], x1
st1 {v2.8b}, [x0], x1
subs x4, x4, #2
b.ne 2b
add sp, sp, #168+16
ret
endfunc
function ff_put_vp8_epel8_h4v6_neon, export=1
sub x2, x2, x3, lsl #1
sub x2, x2, #1
sxtw x4, w4
// first pass (horizontal):
movrel x17, subpel_filters, -16
sxtw x5, w5
add x5, x17, x5, lsl #4 // x
sub sp, sp, #168+16
ld1 {v0.8h}, [x5]
add x7, sp, #15
add x16, x4, #5 // h
bic x7, x7, #15
1:
ld1 {v1.8b, v2.8b}, [x2], x3
vp8_epel8_h4 v1, v1, v2
st1 {v1.8b}, [x7], #8
subs x16, x16, #1
b.ne 1b
// second pass (vertical):
sxtw x6, w6
add x6, x17, x6, lsl #4 // y
add x7, sp, #15
ld1 {v0.8h}, [x6]
bic x7, x7, #15
2:
ld1 {v1.8b - v4.8b}, [x7], #32
ld1 {v5.8b - v7.8b}, [x7]
sub x7, x7, #16
vp8_epel8_v6_y2 v1, v2, v1, v2, v3, v4, v5, v6, v7
st1 {v1.8b}, [x0], x1
st1 {v2.8b}, [x0], x1
subs x4, x4, #2
b.ne 2b
add sp, sp, #168+16
ret
endfunc
function ff_put_vp8_epel8_h4v4_neon, export=1
sub x2, x2, x3
sub x2, x2, #1
sxtw x4, w4
// first pass (horizontal):
movrel x17, subpel_filters, -16
sxtw x5, w5
add x5, x17, x5, lsl #4 // x
sub sp, sp, #168+16
ld1 {v0.8h}, [x5]
add x7, sp, #15
add x16, x4, #3 // h
bic x7, x7, #15
1:
ld1 {v1.8b, v2.8b}, [x2], x3
vp8_epel8_h4 v1, v1, v2
st1 {v1.8b}, [x7], #8
subs x16, x16, #1
b.ne 1b
// second pass (vertical):
sxtw x6, w6
add x6, x17, x6, lsl #4 // y
add x7, sp, #15
ld1 {v0.8h}, [x6]
bic x7, x7, #15
2:
ld1 {v1.8b - v2.8b}, [x7], #16
ld1 {v3.8b - v5.8b}, [x7]
vp8_epel8_v4_y2 v1, v1, v2, v3, v4, v5
st1 {v1.d}[0], [x0], x1
st1 {v1.d}[1], [x0], x1
subs x4, x4, #2
b.ne 2b
add sp, sp, #168+16
ret
endfunc
function ff_put_vp8_epel8_h6v4_neon, export=1
sub x2, x2, x3
sub x2, x2, #2
sxtw x4, w4
// first pass (horizontal):
movrel x17, subpel_filters, -16
sxtw x5, w5
add x5, x17, x5, lsl #4 // x
sub sp, sp, #168+16
ld1 {v0.8h}, [x5]
add x7, sp, #15
add x16, x4, #3 // h
bic x7, x7, #15
1:
ld1 {v1.8b, v2.8b}, [x2], x3
vp8_epel8_h6 v1, v1, v2
st1 {v1.8b}, [x7], #8
subs x16, x16, #1
b.ne 1b
// second pass (vertical):
sxtw x6, w6
add x6, x17, x6, lsl #4 // y
add x7, sp, #15
ld1 {v0.8h}, [x6]
bic x7, x7, #15
2:
ld1 {v1.8b - v2.8b}, [x7], #16
ld1 {v3.8b - v5.8b}, [x7]
vp8_epel8_v4_y2 v1, v1, v2, v3, v4, v5
st1 {v1.d}[0], [x0], x1
st1 {v1.d}[1], [x0], x1
subs x4, x4, #2
b.ne 2b
add sp, sp, #168+16
ret
endfunc
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