6fdcb6a5
 Hu Chunming
初次提交,代码大体完成编写，完善中
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/****************************************************************************
* dct-a.S: aarch64 transform and zigzag
*****************************************************************************
* Copyright (C) 2009-2024 x264 project
*
* Authors: David Conrad <lessen42@gmail.com>
* Janne Grunau <janne-x264@jannau.net>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02111, USA.
*
* This program is also available under a commercial proprietary license.
* For more information, contact us at licensing@x264.com.
*****************************************************************************/
#include "asm.S"
#include "dct-a-common.S"
const scan4x4_frame, align=4
.byte 0,1, 8,9, 2,3, 4,5
.byte 10,11, 16,17, 24,25, 18,19
.byte 12,13, 6,7, 14,15, 20,21
.byte 26,27, 28,29, 22,23, 30,31
endconst
const scan4x4_field, align=4
.byte 0,1, 2,3, 8,9, 4,5
.byte 6,7, 10,11, 12,13, 14,15
endconst
const sub4x4_frame, align=4
.byte 0, 1, 4, 8
.byte 5, 2, 3, 6
.byte 9, 12, 13, 10
.byte 7, 11, 14, 15
endconst
const sub4x4_field, align=4
.byte 0, 4, 1, 8
.byte 12, 5, 9, 13
.byte 2, 6, 10, 14
.byte 3, 7, 11, 15
endconst
// sum = a + (b>>shift) sub = (a>>shift) - b
.macro SUMSUB_SHR shift sum sub a b t0 t1
sshr \t0, \b, #\shift
sshr \t1, \a, #\shift
add \sum, \a, \t0
sub \sub, \t1, \b
.endm
// sum = (a>>shift) + b sub = a - (b>>shift)
.macro SUMSUB_SHR2 shift sum sub a b t0 t1
sshr \t0, \a, #\shift
sshr \t1, \b, #\shift
add \sum, \t0, \b
sub \sub, \a, \t1
.endm
// a += 1.5*ma b -= 1.5*mb
.macro SUMSUB_15 a b ma mb t0 t1
sshr \t0, \ma, #1
sshr \t1, \mb, #1
add \t0, \t0, \ma
add \t1, \t1, \mb
add \a, \a, \t0
sub \b, \b, \t1
.endm
function dct4x4dc_neon, export=1
ld1 {v0.4h,v1.4h,v2.4h,v3.4h}, [x0]
movi v31.4h, #1
SUMSUB_AB v4.4h, v5.4h, v0.4h, v1.4h
SUMSUB_AB v6.4h, v7.4h, v2.4h, v3.4h
SUMSUB_AB v0.4h, v2.4h, v4.4h, v6.4h
SUMSUB_AB v3.4h, v1.4h, v5.4h, v7.4h
transpose v4.4h, v6.4h, v0.4h, v2.4h
transpose v5.4h, v7.4h, v1.4h, v3.4h
SUMSUB_AB v0.4h, v2.4h, v4.4h, v6.4h
SUMSUB_AB v1.4h, v3.4h, v5.4h, v7.4h
transpose v4.2s, v5.2s, v0.2s, v1.2s
transpose v6.2s, v7.2s, v2.2s, v3.2s
add v16.4h, v4.4h, v31.4h
add v17.4h, v6.4h, v31.4h
srhadd v0.4h, v4.4h, v5.4h
shsub v1.4h, v16.4h, v5.4h
shsub v2.4h, v17.4h, v7.4h
srhadd v3.4h, v6.4h, v7.4h
st1 {v0.4h,v1.4h,v2.4h,v3.4h}, [x0]
ret
endfunc
function idct4x4dc_neon, export=1
ld1 {v0.4h,v1.4h,v2.4h,v3.4h}, [x0]
SUMSUB_AB v4.4h, v5.4h, v0.4h, v1.4h
SUMSUB_AB v6.4h, v7.4h, v2.4h, v3.4h
SUMSUB_AB v0.4h, v2.4h, v4.4h, v6.4h
SUMSUB_AB v3.4h, v1.4h, v5.4h, v7.4h
transpose v4.4h, v6.4h, v0.4h, v2.4h
transpose v5.4h, v7.4h, v1.4h, v3.4h
SUMSUB_AB v0.4h, v2.4h, v4.4h, v6.4h
SUMSUB_AB v1.4h, v3.4h, v5.4h, v7.4h
transpose v4.2s, v5.2s, v0.2s, v1.2s
transpose v6.2s, v7.2s, v2.2s, v3.2s
SUMSUB_AB v0.4h, v1.4h, v4.4h, v5.4h
SUMSUB_AB v3.4h, v2.4h, v6.4h, v7.4h
st1 {v0.4h,v1.4h,v2.4h,v3.4h}, [x0]
ret
endfunc
function sub4x4_dct_neon, export=1
mov x3, #FENC_STRIDE
mov x4, #FDEC_STRIDE
ld1 {v0.s}[0], [x1], x3
ld1 {v1.s}[0], [x2], x4
ld1 {v2.s}[0], [x1], x3
usubl v16.8h, v0.8b, v1.8b
ld1 {v3.s}[0], [x2], x4
ld1 {v4.s}[0], [x1], x3
usubl v17.8h, v2.8b, v3.8b
ld1 {v5.s}[0], [x2], x4
ld1 {v6.s}[0], [x1], x3
usubl v18.8h, v4.8b, v5.8b
ld1 {v7.s}[0], [x2], x4
usubl v19.8h, v6.8b, v7.8b
DCT_1D v0.4h, v1.4h, v2.4h, v3.4h, v16.4h, v17.4h, v18.4h, v19.4h
transpose4x4.h v0, v1, v2, v3, v4, v5, v6, v7
DCT_1D v4.4h, v5.4h, v6.4h, v7.4h, v0.4h, v1.4h, v2.4h, v3.4h
st1 {v4.4h,v5.4h,v6.4h,v7.4h}, [x0]
ret
endfunc
function sub8x4_dct_neon
ld1 {v0.8b}, [x1], x3
ld1 {v1.8b}, [x2], x4
usubl v16.8h, v0.8b, v1.8b
ld1 {v2.8b}, [x1], x3
ld1 {v3.8b}, [x2], x4
usubl v17.8h, v2.8b, v3.8b
ld1 {v4.8b}, [x1], x3
ld1 {v5.8b}, [x2], x4
usubl v18.8h, v4.8b, v5.8b
ld1 {v6.8b}, [x1], x3
ld1 {v7.8b}, [x2], x4
usubl v19.8h, v6.8b, v7.8b
DCT_1D v0.8h, v1.8h, v2.8h, v3.8h, v16.8h, v17.8h, v18.8h, v19.8h
transpose4x8.h v0, v1, v2, v3, v4, v5, v6, v7
SUMSUB_AB v16.8h, v19.8h, v0.8h, v3.8h
SUMSUB_AB v17.8h, v18.8h, v1.8h, v2.8h
add v22.8h, v19.8h, v19.8h
add v21.8h, v18.8h, v18.8h
add v0.8h, v16.8h, v17.8h
sub v1.8h, v16.8h, v17.8h
add v2.8h, v22.8h, v18.8h
sub v3.8h, v19.8h, v21.8h
zip1 v4.2d, v0.2d, v2.2d
zip2 v6.2d, v0.2d, v2.2d
zip1 v5.2d, v1.2d, v3.2d
zip2 v7.2d, v1.2d, v3.2d
st1 {v4.8h}, [x0], #16
st1 {v5.8h}, [x0], #16
st1 {v6.8h}, [x0], #16
st1 {v7.8h}, [x0], #16
ret
endfunc
function sub8x8_dct_neon, export=1
mov x5, x30
mov x3, #FENC_STRIDE
mov x4, #FDEC_STRIDE
bl sub8x4_dct_neon
mov x30, x5
b sub8x4_dct_neon
endfunc
function sub16x16_dct_neon, export=1
mov x5, x30
mov x3, #FENC_STRIDE
mov x4, #FDEC_STRIDE
bl sub8x4_dct_neon
bl sub8x4_dct_neon
sub x1, x1, #8*FENC_STRIDE-8
sub x2, x2, #8*FDEC_STRIDE-8
bl sub8x4_dct_neon
bl sub8x4_dct_neon
sub x1, x1, #8
sub x2, x2, #8
bl sub8x4_dct_neon
bl sub8x4_dct_neon
sub x1, x1, #8*FENC_STRIDE-8
sub x2, x2, #8*FDEC_STRIDE-8
bl sub8x4_dct_neon
mov x30, x5
b sub8x4_dct_neon
endfunc
.macro DCT8_1D type
SUMSUB_AB v18.8h, v17.8h, v3.8h, v4.8h // s34/d34
SUMSUB_AB v19.8h, v16.8h, v2.8h, v5.8h // s25/d25
SUMSUB_AB v22.8h, v21.8h, v1.8h, v6.8h // s16/d16
SUMSUB_AB v23.8h, v20.8h, v0.8h, v7.8h // s07/d07
SUMSUB_AB v24.8h, v26.8h, v23.8h, v18.8h // a0/a2
SUMSUB_AB v25.8h, v27.8h, v22.8h, v19.8h // a1/a3
SUMSUB_AB v30.8h, v29.8h, v20.8h, v17.8h // a6/a5
sshr v23.8h, v21.8h, #1
sshr v18.8h, v16.8h, #1
add v23.8h, v23.8h, v21.8h
add v18.8h, v18.8h, v16.8h
sub v30.8h, v30.8h, v23.8h
sub v29.8h, v29.8h, v18.8h
SUMSUB_AB v28.8h, v31.8h, v21.8h, v16.8h // a4/a7
sshr v22.8h, v20.8h, #1
sshr v19.8h, v17.8h, #1
add v22.8h, v22.8h, v20.8h
add v19.8h, v19.8h, v17.8h
add v22.8h, v28.8h, v22.8h
add v31.8h, v31.8h, v19.8h
SUMSUB_AB v0.8h, v4.8h, v24.8h, v25.8h
SUMSUB_SHR 2, v1.8h, v7.8h, v22.8h, v31.8h, v16.8h, v17.8h
SUMSUB_SHR 1, v2.8h, v6.8h, v26.8h, v27.8h, v18.8h, v19.8h
SUMSUB_SHR2 2, v3.8h, v5.8h, v30.8h, v29.8h, v20.8h, v21.8h
.endm
function sub8x8_dct8_neon, export=1
mov x3, #FENC_STRIDE
mov x4, #FDEC_STRIDE
ld1 {v16.8b}, [x1], x3
ld1 {v17.8b}, [x2], x4
ld1 {v18.8b}, [x1], x3
ld1 {v19.8b}, [x2], x4
usubl v0.8h, v16.8b, v17.8b
ld1 {v20.8b}, [x1], x3
ld1 {v21.8b}, [x2], x4
usubl v1.8h, v18.8b, v19.8b
ld1 {v22.8b}, [x1], x3
ld1 {v23.8b}, [x2], x4
usubl v2.8h, v20.8b, v21.8b
ld1 {v24.8b}, [x1], x3
ld1 {v25.8b}, [x2], x4
usubl v3.8h, v22.8b, v23.8b
ld1 {v26.8b}, [x1], x3
ld1 {v27.8b}, [x2], x4
usubl v4.8h, v24.8b, v25.8b
ld1 {v28.8b}, [x1], x3
ld1 {v29.8b}, [x2], x4
usubl v5.8h, v26.8b, v27.8b
ld1 {v30.8b}, [x1], x3
ld1 {v31.8b}, [x2], x4
usubl v6.8h, v28.8b, v29.8b
usubl v7.8h, v30.8b, v31.8b
DCT8_1D row
transpose8x8.h v0, v1, v2, v3, v4, v5, v6, v7, v30, v31
DCT8_1D col
st1 {v0.8h,v1.8h,v2.8h,v3.8h}, [x0], #64
st1 {v4.8h,v5.8h,v6.8h,v7.8h}, [x0], #64
ret
endfunc
function sub16x16_dct8_neon, export=1
mov x7, x30
bl X(sub8x8_dct8_neon)
sub x1, x1, #FENC_STRIDE*8 - 8
sub x2, x2, #FDEC_STRIDE*8 - 8
bl X(sub8x8_dct8_neon)
sub x1, x1, #8
sub x2, x2, #8
bl X(sub8x8_dct8_neon)
mov x30, x7
sub x1, x1, #FENC_STRIDE*8 - 8
sub x2, x2, #FDEC_STRIDE*8 - 8
b X(sub8x8_dct8_neon)
endfunc
// First part of IDCT (minus final SUMSUB_BA)
.macro IDCT_1D d4 d5 d6 d7 d0 d1 d2 d3
SUMSUB_AB \d4, \d5, \d0, \d2
sshr \d7, \d1, #1
sshr \d6, \d3, #1
sub \d7, \d7, \d3
add \d6, \d6, \d1
.endm
function add4x4_idct_neon, export=1
mov x2, #FDEC_STRIDE
ld1 {v0.4h,v1.4h,v2.4h,v3.4h}, [x1]
IDCT_1D v4.4h, v5.4h, v6.4h, v7.4h, v0.4h, v1.4h, v2.4h, v3.4h
ld1 {v28.s}[0], [x0], x2
SUMSUB_AB v0.4h, v2.4h, v4.4h, v6.4h
SUMSUB_AB v1.4h, v3.4h, v5.4h, v7.4h
transpose4x4.h v0, v1, v3, v2, v16, v17, v18, v19
IDCT_1D v4.4h, v5.4h, v6.4h, v7.4h, v0.4h, v1.4h, v3.4h, v2.4h
ld1 {v29.s}[0], [x0], x2
SUMSUB_AB v0.4h, v2.4h, v4.4h, v6.4h
SUMSUB_AB v1.4h, v3.4h, v5.4h, v7.4h
srshr v0.4h, v0.4h, #6
srshr v1.4h, v1.4h, #6
ld1 {v31.s}[0], [x0], x2
srshr v2.4h, v2.4h, #6
srshr v3.4h, v3.4h, #6
ld1 {v30.s}[0], [x0], x2
sub x0, x0, x2, lsl #2
uaddw v0.8h, v0.8h, v28.8b
uaddw v1.8h, v1.8h, v29.8b
uaddw v2.8h, v2.8h, v30.8b
uaddw v3.8h, v3.8h, v31.8b
sqxtun v0.8b, v0.8h
sqxtun v1.8b, v1.8h
sqxtun v2.8b, v2.8h
sqxtun v3.8b, v3.8h
st1 {v0.s}[0], [x0], x2
st1 {v1.s}[0], [x0], x2
st1 {v3.s}[0], [x0], x2
st1 {v2.s}[0], [x0], x2
ret
endfunc
function add8x4_idct_neon, export=1
ld1 {v0.8h,v1.8h}, [x1], #32
ld1 {v2.8h,v3.8h}, [x1], #32
transpose v20.2d, v21.2d, v0.2d, v2.2d
transpose v22.2d, v23.2d, v1.2d, v3.2d
IDCT_1D v16.8h, v17.8h, v18.8h, v19.8h, v20.8h, v21.8h, v22.8h, v23.8h
SUMSUB_AB v0.8h, v3.8h, v16.8h, v18.8h
SUMSUB_AB v1.8h, v2.8h, v17.8h, v19.8h
transpose4x8.h v0, v1, v2, v3, v4, v5, v6, v7
IDCT_1D v16.8h, v17.8h, v18.8h, v19.8h, v0.8h, v1.8h, v2.8h, v3.8h
SUMSUB_AB v0.8h, v3.8h, v16.8h, v18.8h
SUMSUB_AB v1.8h, v2.8h, v17.8h, v19.8h
srshr v0.8h, v0.8h, #6
ld1 {v28.8b}, [x0], x2
srshr v1.8h, v1.8h, #6
ld1 {v29.8b}, [x0], x2
srshr v2.8h, v2.8h, #6
ld1 {v30.8b}, [x0], x2
srshr v3.8h, v3.8h, #6
ld1 {v31.8b}, [x0], x2
sub x0, x0, x2, lsl #2
uaddw v0.8h, v0.8h, v28.8b
uaddw v1.8h, v1.8h, v29.8b
uaddw v2.8h, v2.8h, v30.8b
uaddw v3.8h, v3.8h, v31.8b
sqxtun v0.8b, v0.8h
sqxtun v1.8b, v1.8h
st1 {v0.8b}, [x0], x2
sqxtun v2.8b, v2.8h
st1 {v1.8b}, [x0], x2
sqxtun v3.8b, v3.8h
st1 {v2.8b}, [x0], x2
st1 {v3.8b}, [x0], x2
ret
endfunc
function add8x8_idct_neon, export=1
mov x2, #FDEC_STRIDE
mov x5, x30
bl X(add8x4_idct_neon)
mov x30, x5
b X(add8x4_idct_neon)
endfunc
function add16x16_idct_neon, export=1
mov x2, #FDEC_STRIDE
mov x5, x30
bl X(add8x4_idct_neon)
bl X(add8x4_idct_neon)
sub x0, x0, #8*FDEC_STRIDE-8
bl X(add8x4_idct_neon)
bl X(add8x4_idct_neon)
sub x0, x0, #8
bl X(add8x4_idct_neon)
bl X(add8x4_idct_neon)
sub x0, x0, #8*FDEC_STRIDE-8
bl X(add8x4_idct_neon)
mov x30, x5
b X(add8x4_idct_neon)
endfunc
.macro IDCT8_1D type
SUMSUB_AB v0.8h, v1.8h, v16.8h, v20.8h // a0/a2
.ifc \type, row
ld1 {v22.8h,v23.8h}, [x1], #32
.endif
SUMSUB_SHR 1, v2.8h, v3.8h, v18.8h, v22.8h, v16.8h, v20.8h // a6/a4
SUMSUB_AB v16.8h, v18.8h, v21.8h, v19.8h
SUMSUB_15 v16.8h, v18.8h, v17.8h, v23.8h, v20.8h, v22.8h // a7/a1
SUMSUB_AB v22.8h, v23.8h, v23.8h, v17.8h
SUMSUB_15 v23.8h, v22.8h, v21.8h, v19.8h, v20.8h, v17.8h // a5/a3
SUMSUB_SHR 2, v21.8h, v22.8h, v22.8h, v23.8h, v19.8h, v17.8h // b3/b5
SUMSUB_SHR2 2, v20.8h, v23.8h, v16.8h, v18.8h, v19.8h, v17.8h // b1/b7
SUMSUB_AB v18.8h, v2.8h, v0.8h, v2.8h // b0/b6
SUMSUB_AB v19.8h, v3.8h, v1.8h, v3.8h // b2/b4
SUMSUB_AB v16.8h, v23.8h, v18.8h, v23.8h
SUMSUB_AB v17.8h, v22.8h, v19.8h, v22.8h
SUMSUB_AB v18.8h, v21.8h, v3.8h, v21.8h
SUMSUB_AB v19.8h, v20.8h, v2.8h, v20.8h
.endm
function add8x8_idct8_neon, export=1
mov x2, #FDEC_STRIDE
ld1 {v16.8h,v17.8h}, [x1], #32
ld1 {v18.8h,v19.8h}, [x1], #32
ld1 {v20.8h,v21.8h}, [x1], #32
IDCT8_1D row
transpose8x8.h v16, v17, v18, v19, v20, v21, v22, v23, v30, v31
IDCT8_1D col
ld1 {v0.8b}, [x0], x2
srshr v16.8h, v16.8h, #6
ld1 {v1.8b}, [x0], x2
srshr v17.8h, v17.8h, #6
ld1 {v2.8b}, [x0], x2
srshr v18.8h, v18.8h, #6
ld1 {v3.8b}, [x0], x2
srshr v19.8h, v19.8h, #6
ld1 {v4.8b}, [x0], x2
srshr v20.8h, v20.8h, #6
ld1 {v5.8b}, [x0], x2
srshr v21.8h, v21.8h, #6
ld1 {v6.8b}, [x0], x2
srshr v22.8h, v22.8h, #6
ld1 {v7.8b}, [x0], x2
srshr v23.8h, v23.8h, #6
sub x0, x0, x2, lsl #3
uaddw v16.8h, v16.8h, v0.8b
uaddw v17.8h, v17.8h, v1.8b
uaddw v18.8h, v18.8h, v2.8b
sqxtun v0.8b, v16.8h
sqxtun v1.8b, v17.8h
sqxtun v2.8b, v18.8h
uaddw v19.8h, v19.8h, v3.8b
st1 {v0.8b}, [x0], x2
uaddw v20.8h, v20.8h, v4.8b
st1 {v1.8b}, [x0], x2
uaddw v21.8h, v21.8h, v5.8b
st1 {v2.8b}, [x0], x2
sqxtun v3.8b, v19.8h
sqxtun v4.8b, v20.8h
uaddw v22.8h, v22.8h, v6.8b
uaddw v23.8h, v23.8h, v7.8b
st1 {v3.8b}, [x0], x2
sqxtun v5.8b, v21.8h
st1 {v4.8b}, [x0], x2
sqxtun v6.8b, v22.8h
sqxtun v7.8b, v23.8h
st1 {v5.8b}, [x0], x2
st1 {v6.8b}, [x0], x2
st1 {v7.8b}, [x0], x2
ret
endfunc
function add16x16_idct8_neon, export=1
mov x7, x30
bl X(add8x8_idct8_neon)
sub x0, x0, #8*FDEC_STRIDE-8
bl X(add8x8_idct8_neon)
sub x0, x0, #8
bl X(add8x8_idct8_neon)
sub x0, x0, #8*FDEC_STRIDE-8
mov x30, x7
b X(add8x8_idct8_neon)
endfunc
function add8x8_idct_dc_neon, export=1
mov x2, #FDEC_STRIDE
ld1 {v16.4h}, [x1]
ld1 {v0.8b}, [x0], x2
srshr v16.4h, v16.4h, #6
ld1 {v1.8b}, [x0], x2
dup v20.8h, v16.h[0]
dup v21.8h, v16.h[1]
ld1 {v2.8b}, [x0], x2
dup v22.8h, v16.h[2]
dup v23.8h, v16.h[3]
ld1 {v3.8b}, [x0], x2
trn1 v20.2d, v20.2d, v21.2d
ld1 {v4.8b}, [x0], x2
trn1 v21.2d, v22.2d, v23.2d
ld1 {v5.8b}, [x0], x2
neg v22.8h, v20.8h
ld1 {v6.8b}, [x0], x2
neg v23.8h, v21.8h
ld1 {v7.8b}, [x0], x2
sub x0, x0, #8*FDEC_STRIDE
sqxtun v20.8b, v20.8h
sqxtun v21.8b, v21.8h
sqxtun v22.8b, v22.8h
sqxtun v23.8b, v23.8h
uqadd v0.8b, v0.8b, v20.8b
uqadd v1.8b, v1.8b, v20.8b
uqadd v2.8b, v2.8b, v20.8b
uqadd v3.8b, v3.8b, v20.8b
uqadd v4.8b, v4.8b, v21.8b
uqadd v5.8b, v5.8b, v21.8b
uqadd v6.8b, v6.8b, v21.8b
uqadd v7.8b, v7.8b, v21.8b
uqsub v0.8b, v0.8b, v22.8b
uqsub v1.8b, v1.8b, v22.8b
uqsub v2.8b, v2.8b, v22.8b
uqsub v3.8b, v3.8b, v22.8b
uqsub v4.8b, v4.8b, v23.8b
uqsub v5.8b, v5.8b, v23.8b
uqsub v6.8b, v6.8b, v23.8b
uqsub v7.8b, v7.8b, v23.8b
st1 {v0.8b}, [x0], x2
st1 {v1.8b}, [x0], x2
st1 {v2.8b}, [x0], x2
st1 {v3.8b}, [x0], x2
st1 {v4.8b}, [x0], x2
st1 {v5.8b}, [x0], x2
st1 {v6.8b}, [x0], x2
st1 {v7.8b}, [x0], x2
ret
endfunc
.macro ADD16x4_IDCT_DC dc
ld1 {v4.16b}, [x0], x3
dup v24.8h, \dc[0]
dup v25.8h, \dc[1]
ld1 {v5.16b}, [x0], x3
dup v26.8h, \dc[2]
dup v27.8h, \dc[3]
ld1 {v6.16b}, [x0], x3
trn1 v24.2d, v24.2d, v25.2d
ld1 {v7.16b}, [x0], x3
trn1 v25.2d, v26.2d, v27.2d
neg v26.8h, v24.8h
neg v27.8h, v25.8h
sqxtun v20.8b, v24.8h
sqxtun v21.8b, v26.8h
sqxtun2 v20.16b, v25.8h
sqxtun2 v21.16b, v27.8h
uqadd v4.16b, v4.16b, v20.16b
uqadd v5.16b, v5.16b, v20.16b
uqadd v6.16b, v6.16b, v20.16b
uqadd v7.16b, v7.16b, v20.16b
uqsub v4.16b, v4.16b, v21.16b
uqsub v5.16b, v5.16b, v21.16b
uqsub v6.16b, v6.16b, v21.16b
st1 {v4.16b}, [x2], x3
uqsub v7.16b, v7.16b, v21.16b
st1 {v5.16b}, [x2], x3
st1 {v6.16b}, [x2], x3
st1 {v7.16b}, [x2], x3
.endm
function add16x16_idct_dc_neon, export=1
mov x2, x0
mov x3, #FDEC_STRIDE
ld1 {v0.4h,v1.4h,v2.4h,v3.4h}, [x1]
srshr v0.4h, v0.4h, #6
srshr v1.4h, v1.4h, #6
ADD16x4_IDCT_DC v0.h
srshr v2.4h, v2.4h, #6
ADD16x4_IDCT_DC v1.h
srshr v3.4h, v3.4h, #6
ADD16x4_IDCT_DC v2.h
ADD16x4_IDCT_DC v3.h
ret
endfunc
.macro sub4x4x2_dct_dc, dst, t0, t1, t2, t3, t4, t5, t6, t7
ld1 {\t0\().8b}, [x1], x3
ld1 {\t1\().8b}, [x2], x4
ld1 {\t2\().8b}, [x1], x3
ld1 {\t3\().8b}, [x2], x4
usubl \t0\().8h, \t0\().8b, \t1\().8b
ld1 {\t4\().8b}, [x1], x3
ld1 {\t5\().8b}, [x2], x4
usubl \t1\().8h, \t2\().8b, \t3\().8b
ld1 {\t6\().8b}, [x1], x3
ld1 {\t7\().8b}, [x2], x4
add \dst\().8h, \t0\().8h, \t1\().8h
usubl \t2\().8h, \t4\().8b, \t5\().8b
usubl \t3\().8h, \t6\().8b, \t7\().8b
add \dst\().8h, \dst\().8h, \t2\().8h
add \dst\().8h, \dst\().8h, \t3\().8h
.endm
function sub8x8_dct_dc_neon, export=1
mov x3, #FENC_STRIDE
mov x4, #FDEC_STRIDE
sub4x4x2_dct_dc v0, v16, v17, v18, v19, v20, v21, v22, v23
sub4x4x2_dct_dc v1, v24, v25, v26, v27, v28, v29, v30, v31
transpose v2.2d, v3.2d, v0.2d, v1.2d
SUMSUB_AB v0.8h, v1.8h, v2.8h, v3.8h
transpose v2.2d, v3.2d, v0.2d, v1.2d
SUMSUB_AB v0.8h, v1.8h, v2.8h, v3.8h
transpose v2.2d, v3.2d, v0.2d, v1.2d
addp v0.8h, v2.8h, v3.8h
addp v0.8h, v0.8h, v0.8h
st1 {v0.4h}, [x0]
ret
endfunc
function sub8x16_dct_dc_neon, export=1
mov x3, #FENC_STRIDE
mov x4, #FDEC_STRIDE
sub4x4x2_dct_dc v0, v16, v17, v18, v19, v20, v21, v22, v23
sub4x4x2_dct_dc v1, v24, v25, v26, v27, v28, v29, v30, v31
sub4x4x2_dct_dc v2, v16, v17, v18, v19, v20, v21, v22, v23
sub4x4x2_dct_dc v3, v24, v25, v26, v27, v28, v29, v30, v31
addp v4.8h, v0.8h, v2.8h
addp v5.8h, v1.8h, v3.8h
transpose v2.4s, v3.4s, v4.4s, v5.4s
SUMSUB_AB v0.8h, v1.8h, v2.8h, v3.8h
transpose v2.4s, v3.4s, v0.4s, v1.4s
SUMSUB_AB v0.8h, v1.8h, v2.8h, v3.8h
transpose v2.2d, v3.2d, v0.2d, v1.2d
SUMSUB_AB v0.8h, v1.8h, v2.8h, v3.8h
trn1 v2.2d, v0.2d, v1.2d
trn2 v3.2d, v1.2d, v0.2d
addp v0.8h, v2.8h, v3.8h
st1 {v0.8h}, [x0]
ret
endfunc
function zigzag_interleave_8x8_cavlc_neon, export=1
mov x3, #7
movi v31.4s, #1
ld4 {v0.8h,v1.8h,v2.8h,v3.8h}, [x1], #64
ld4 {v4.8h,v5.8h,v6.8h,v7.8h}, [x1], #64
umax v16.8h, v0.8h, v4.8h
umax v17.8h, v1.8h, v5.8h
umax v18.8h, v2.8h, v6.8h
umax v19.8h, v3.8h, v7.8h
st1 {v0.8h}, [x0], #16
st1 {v4.8h}, [x0], #16
umaxp v16.8h, v16.8h, v17.8h
umaxp v18.8h, v18.8h, v19.8h
st1 {v1.8h}, [x0], #16
st1 {v5.8h}, [x0], #16
umaxp v16.8h, v16.8h, v18.8h
st1 {v2.8h}, [x0], #16
st1 {v6.8h}, [x0], #16
cmhs v16.4s, v16.4s, v31.4s
st1 {v3.8h}, [x0], #16
and v16.16b, v16.16b, v31.16b
st1 {v7.8h}, [x0], #16
st1 {v16.b}[0], [x2], #1
st1 {v16.b}[4], [x2], x3
st1 {v16.b}[8], [x2], #1
st1 {v16.b}[12], [x2]
ret
endfunc
function zigzag_scan_4x4_frame_neon, export=1
movrel x2, scan4x4_frame
ld1 {v0.16b,v1.16b}, [x1]
ld1 {v16.16b,v17.16b}, [x2]
tbl v2.16b, {v0.16b,v1.16b}, v16.16b
tbl v3.16b, {v0.16b,v1.16b}, v17.16b
st1 {v2.16b,v3.16b}, [x0]
ret
endfunc
.macro zigzag_sub_4x4 f ac
function zigzag_sub_4x4\ac\()_\f\()_neon, export=1
mov x9, #FENC_STRIDE
mov x4, #FDEC_STRIDE
movrel x5, sub4x4_\f
mov x6, x2
ld1 {v0.s}[0], [x1], x9
ld1 {v0.s}[1], [x1], x9
ld1 {v0.s}[2], [x1], x9
ld1 {v0.s}[3], [x1], x9
ld1 {v16.16b}, [x5]
ld1 {v1.s}[0], [x2], x4
ld1 {v1.s}[1], [x2], x4
ld1 {v1.s}[2], [x2], x4
ld1 {v1.s}[3], [x2], x4
tbl v2.16b, {v0.16b}, v16.16b
tbl v3.16b, {v1.16b}, v16.16b
st1 {v0.s}[0], [x6], x4
usubl v4.8h, v2.8b, v3.8b
.ifc \ac, ac
dup h7, v4.h[0]
ins v4.h[0], wzr
fmov w5, s7
strh w5, [x3]
.endif
usubl2 v5.8h, v2.16b, v3.16b
st1 {v0.s}[1], [x6], x4
umax v6.8h, v4.8h, v5.8h
umaxv h6, v6.8h
st1 {v0.s}[2], [x6], x4
fmov w7, s6
st1 {v0.s}[3], [x6], x4
cmp w7, #0
st1 {v4.8h,v5.8h}, [x0]
cset w0, ne
ret
endfunc
.endm
zigzag_sub_4x4 field
zigzag_sub_4x4 field, ac
zigzag_sub_4x4 frame
zigzag_sub_4x4 frame, ac
function zigzag_scan_4x4_field_neon, export=1
movrel x2, scan4x4_field
ld1 {v0.8h,v1.8h}, [x1]
ld1 {v16.16b}, [x2]
tbl v0.16b, {v0.16b}, v16.16b
st1 {v0.8h,v1.8h}, [x0]
ret
endfunc
function zigzag_scan_8x8_frame_neon, export=1
movrel x2, scan8x8_frame
ld1 {v0.8h,v1.8h}, [x1], #32
ld1 {v2.8h,v3.8h}, [x1], #32
ld1 {v4.8h,v5.8h}, [x1], #32
ld1 {v6.8h,v7.8h}, [x1]
ld1 {v16.16b,v17.16b}, [x2], #32
ld1 {v18.16b,v19.16b}, [x2], #32
ld1 {v20.16b,v21.16b}, [x2], #32
ld1 {v22.16b,v23.16b}, [x2], #32
tbl v24.16b, {v0.16b,v1.16b,v2.16b,v3.16b}, v16.16b
tbl v25.16b, {v0.16b,v1.16b,v2.16b,v3.16b}, v17.16b
tbl v26.16b, {v0.16b,v1.16b,v2.16b,v3.16b}, v18.16b
tbl v27.16b, {v3.16b,v4.16b,v5.16b,v6.16b}, v19.16b
tbl v28.16b, {v0.16b,v1.16b,v2.16b,v3.16b}, v20.16b
tbl v29.16b, {v4.16b,v5.16b,v6.16b,v7.16b}, v21.16b
tbl v30.16b, {v4.16b,v5.16b,v6.16b,v7.16b}, v22.16b
tbl v31.16b, {v4.16b,v5.16b,v6.16b,v7.16b}, v23.16b
mov v25.h[6], v4.h[0]
mov v25.h[7], v5.h[0]
mov v26.h[0], v4.h[1]
mov v27.h[4], v7.h[0]
mov v28.h[7], v4.h[4]
mov v29.h[7], v3.h[6]
mov v30.h[0], v2.h[7]
mov v30.h[1], v3.h[7]
st1 {v24.8h,v25.8h}, [x0], #32
st1 {v26.8h,v27.8h}, [x0], #32
st1 {v28.8h,v29.8h}, [x0], #32
st1 {v30.8h,v31.8h}, [x0]
ret
endfunc
#define Z(z) 2*(z), 2*(z)+1
#define T(x,y) Z(x*8+y)
const scan8x8_frame, align=5
.byte T(0,0), T(1,0), T(0,1), T(0,2)
.byte T(1,1), T(2,0), T(3,0), T(2,1)
.byte T(1,2), T(0,3), T(0,4), T(1,3)
.byte T(2,2), T(3,1), T(4,0), T(5,0)
.byte T(4,1), T(3,2), T(2,3), T(1,4)
.byte T(0,5), T(0,6), T(1,5), T(2,4)
#undef T
#define T(x,y) Z((x-3)*8+y)
.byte T(3,3), T(4,2), T(5,1), T(6,0)
.byte T(7,0), T(6,1), T(5,2), T(4,3)
#undef T
#define T(x,y) Z((x-0)*8+y)
.byte T(3,4), T(2,5), T(1,6), T(0,7)
.byte T(1,7), T(2,6), T(3,5), T(4,4)
#undef T
#define T(x,y) Z((x-4)*8+y)
.byte T(5,3), T(6,2), T(7,1), T(7,2)
.byte T(6,3), T(5,4), T(4,5), T(3,6)
.byte T(2,7), T(3,7), T(4,6), T(5,5)
.byte T(6,4), T(7,3), T(7,4), T(6,5)
.byte T(5,6), T(4,7), T(5,7), T(6,6)
.byte T(7,5), T(7,6), T(6,7), T(7,7)
endconst
function zigzag_scan_8x8_field_neon, export=1
movrel x2, scan8x8_field
ld1 {v0.8h,v1.8h}, [x1], #32
ld1 {v2.8h,v3.8h}, [x1], #32
ld1 {v4.8h,v5.8h}, [x1], #32
ld1 {v6.8h,v7.8h}, [x1]
ld1 {v16.16b,v17.16b}, [x2], #32
ld1 {v18.16b,v19.16b}, [x2], #32
ld1 {v20.16b,v21.16b}, [x2], #32
ld1 {v22.16b}, [x2]
ext v31.16b, v7.16b, v7.16b, #4
tbl v24.16b, {v0.16b,v1.16b}, v16.16b
tbl v25.16b, {v0.16b,v1.16b,v2.16b,v3.16b}, v17.16b
tbl v26.16b, {v1.16b,v2.16b,v3.16b,v4.16b}, v18.16b
tbl v27.16b, {v2.16b,v3.16b,v4.16b,v5.16b}, v19.16b
tbl v28.16b, {v3.16b,v4.16b,v5.16b,v6.16b}, v20.16b
tbl v29.16b, {v4.16b,v5.16b,v6.16b}, v21.16b
tbl v30.16b, {v5.16b,v6.16b,v7.16b}, v22.16b
ext v31.16b, v6.16b, v31.16b, #12
st1 {v24.8h,v25.8h}, [x0], #32
st1 {v26.8h,v27.8h}, [x0], #32
st1 {v28.8h,v29.8h}, [x0], #32
st1 {v30.8h,v31.8h}, [x0]
ret
endfunc
.macro zigzag_sub8x8 f
function zigzag_sub_8x8_\f\()_neon, export=1
movrel x4, sub8x8_\f
mov x5, #FENC_STRIDE
mov x6, #FDEC_STRIDE
mov x7, x2
ld1 {v0.d}[0], [x1], x5
ld1 {v0.d}[1], [x1], x5
ld1 {v1.d}[0], [x1], x5
ld1 {v1.d}[1], [x1], x5
ld1 {v2.d}[0], [x1], x5
ld1 {v2.d}[1], [x1], x5
ld1 {v3.d}[0], [x1], x5
ld1 {v3.d}[1], [x1]
ld1 {v4.d}[0], [x2], x6
ld1 {v4.d}[1], [x2], x6
ld1 {v5.d}[0], [x2], x6
ld1 {v5.d}[1], [x2], x6
ld1 {v6.d}[0], [x2], x6
ld1 {v6.d}[1], [x2], x6
ld1 {v7.d}[0], [x2], x6
ld1 {v7.d}[1], [x2]
ld1 {v16.16b,v17.16b}, [x4], #32
ld1 {v18.16b,v19.16b}, [x4], #32
tbl v24.16b, {v0.16b,v1.16b,v2.16b,v3.16b}, v16.16b
tbl v25.16b, {v0.16b,v1.16b,v2.16b,v3.16b}, v17.16b
tbl v26.16b, {v0.16b,v1.16b,v2.16b,v3.16b}, v18.16b
tbl v27.16b, {v0.16b,v1.16b,v2.16b,v3.16b}, v19.16b
tbl v28.16b, {v4.16b,v5.16b,v6.16b,v7.16b}, v16.16b
tbl v29.16b, {v4.16b,v5.16b,v6.16b,v7.16b}, v17.16b
tbl v30.16b, {v4.16b,v5.16b,v6.16b,v7.16b}, v18.16b
tbl v31.16b, {v4.16b,v5.16b,v6.16b,v7.16b}, v19.16b
usubl v4.8h, v24.8b, v28.8b
usubl2 v5.8h, v24.16b, v28.16b
usubl v6.8h, v25.8b, v29.8b
usubl2 v7.8h, v25.16b, v29.16b
usubl v16.8h, v26.8b, v30.8b
usubl2 v17.8h, v26.16b, v30.16b
usubl v18.8h, v27.8b, v31.8b
usubl2 v19.8h, v27.16b, v31.16b
umax v20.8h, v4.8h, v5.8h
umax v21.8h, v6.8h, v7.8h
umax v22.8h, v16.8h, v17.8h
umax v23.8h, v18.8h, v19.8h
umax v20.8h, v20.8h, v21.8h
umax v21.8h, v22.8h, v23.8h
umax v20.8h, v20.8h, v21.8h
umaxv h22, v20.8h
st1 {v0.d}[0], [x7], x6
st1 {v0.d}[1], [x7], x6
st1 {v1.d}[0], [x7], x6
st1 {v1.d}[1], [x7], x6
st1 {v2.d}[0], [x7], x6
st1 {v2.d}[1], [x7], x6
st1 {v3.d}[0], [x7], x6
st1 {v3.d}[1], [x7]
st1 {v4.8h,v5.8h}, [x0], #32
st1 {v6.8h,v7.8h}, [x0], #32
st1 {v16.8h,v17.8h}, [x0], #32
st1 {v18.8h,v19.8h}, [x0]
fmov w9, s22
cmp w9, #0
cset w0, ne
ret
endfunc
.endm
zigzag_sub8x8 field
zigzag_sub8x8 frame
#undef T
#define T(x,y) Z(x*8+y)
const scan8x8_field, align=5
.byte T(0,0), T(0,1), T(0,2), T(1,0)
.byte T(1,1), T(0,3), T(0,4), T(1,2)
.byte T(2,0), T(1,3), T(0,5), T(0,6)
.byte T(0,7), T(1,4), T(2,1), T(3,0)
#undef T
#define T(x,y) Z((x-1)*8+y)
.byte T(2,2), T(1,5), T(1,6), T(1,7)
.byte T(2,3), T(3,1), T(4,0), T(3,2)
#undef T
#define T(x,y) Z((x-2)*8+y)
.byte T(2,4), T(2,5), T(2,6), T(2,7)
.byte T(3,3), T(4,1), T(5,0), T(4,2)
#undef T
#define T(x,y) Z((x-3)*8+y)
.byte T(3,4), T(3,5), T(3,6), T(3,7)
.byte T(4,3), T(5,1), T(6,0), T(5,2)
#undef T
#define T(x,y) Z((x-4)*8+y)
.byte T(4,4), T(4,5), T(4,6), T(4,7)
.byte T(5,3), T(6,1), T(6,2), T(5,4)
#undef T
#define T(x,y) Z((x-5)*8+y)
.byte T(5,5), T(5,6), T(5,7), T(6,3)
.byte T(7,0), T(7,1), T(6,4), T(6,5)
endconst
#undef T
#define T(y,x) x*8+y
const sub8x8_frame, align=5
.byte T(0,0), T(1,0), T(0,1), T(0,2)
.byte T(1,1), T(2,0), T(3,0), T(2,1)
.byte T(1,2), T(0,3), T(0,4), T(1,3)
.byte T(2,2), T(3,1), T(4,0), T(5,0)
.byte T(4,1), T(3,2), T(2,3), T(1,4)
.byte T(0,5), T(0,6), T(1,5), T(2,4)
.byte T(3,3), T(4,2), T(5,1), T(6,0)
.byte T(7,0), T(6,1), T(5,2), T(4,3)
.byte T(3,4), T(2,5), T(1,6), T(0,7)
.byte T(1,7), T(2,6), T(3,5), T(4,4)
.byte T(5,3), T(6,2), T(7,1), T(7,2)
.byte T(6,3), T(5,4), T(4,5), T(3,6)
.byte T(2,7), T(3,7), T(4,6), T(5,5)
.byte T(6,4), T(7,3), T(7,4), T(6,5)
.byte T(5,6), T(4,7), T(5,7), T(6,6)
.byte T(7,5), T(7,6), T(6,7), T(7,7)
endconst
const sub8x8_field, align=5
.byte T(0,0), T(0,1), T(0,2), T(1,0)
.byte T(1,1), T(0,3), T(0,4), T(1,2)
.byte T(2,0), T(1,3), T(0,5), T(0,6)
.byte T(0,7), T(1,4), T(2,1), T(3,0)
.byte T(2,2), T(1,5), T(1,6), T(1,7)
.byte T(2,3), T(3,1), T(4,0), T(3,2)
.byte T(2,4), T(2,5), T(2,6), T(2,7)
.byte T(3,3), T(4,1), T(5,0), T(4,2)
.byte T(3,4), T(3,5), T(3,6), T(3,7)
.byte T(4,3), T(5,1), T(6,0), T(5,2)
.byte T(4,4), T(4,5), T(4,6), T(4,7)
.byte T(5,3), T(6,1), T(6,2), T(5,4)
.byte T(5,5), T(5,6), T(5,7), T(6,3)
.byte T(7,0), T(7,1), T(6,4), T(6,5)
.byte T(6,6), T(6,7), T(7,2), T(7,3)
.byte T(7,4), T(7,5), T(7,6), T(7,7)
endconst
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