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FFmpeg/libavcodec/aarch64/h264cmc_neon.S
Martin Storsjö 93cda5a9c2 aarch64: Lowercase UXTW/SXTW and similar flags 
Signed-off-by: Martin Storsjö <martin@martin.st>
2023-10-21 23:25:23 +03:00

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/*
* Copyright (c) 2008 Mans Rullgard <mans@mansr.com>
* Copyright (c) 2013 Janne Grunau <janne-libav@jannau.net>
*
* 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 "config_components.h"
#include "libavutil/aarch64/asm.S"
/* chroma_mc8(uint8_t *dst, const uint8_t *src, ptrdiff_t stride, int h, int x, int y) */
.macro h264_chroma_mc8 type, codec=h264
function ff_\type\()_\codec\()_chroma_mc8_neon, export=1
.ifc \type,avg
mov x8, x0
.endif
prfm pldl1strm, [x1]
prfm pldl1strm, [x1, x2]
.ifc \codec,rv40
movrel x6, rv40bias
lsr w9, w5, #1
lsr w10, w4, #1
lsl w9, w9, #3
lsl w10, w10, #1
add w9, w9, w10
add x6, x6, w9, uxtw
ld1r {v22.8h}, [x6]
.endif
.ifc \codec,vc1
movi v22.8h, #28
.endif
mul w7, w4, w5
lsl w14, w5, #3
lsl w13, w4, #3
cmp w7, #0
sub w6, w14, w7
sub w12, w13, w7
sub w4, w7, w13
sub w4, w4, w14
add w4, w4, #64
b.eq 2f
dup v0.8b, w4
dup v1.8b, w12
ld1 {v4.8b, v5.8b}, [x1], x2
dup v2.8b, w6
dup v3.8b, w7
ext v5.8b, v4.8b, v5.8b, #1
1: ld1 {v6.8b, v7.8b}, [x1], x2
umull v16.8h, v4.8b, v0.8b
umlal v16.8h, v5.8b, v1.8b
ext v7.8b, v6.8b, v7.8b, #1
ld1 {v4.8b, v5.8b}, [x1], x2
umlal v16.8h, v6.8b, v2.8b
prfm pldl1strm, [x1]
ext v5.8b, v4.8b, v5.8b, #1
umlal v16.8h, v7.8b, v3.8b
umull v17.8h, v6.8b, v0.8b
subs w3, w3, #2
umlal v17.8h, v7.8b, v1.8b
umlal v17.8h, v4.8b, v2.8b
umlal v17.8h, v5.8b, v3.8b
prfm pldl1strm, [x1, x2]
.ifc \codec,h264
rshrn v16.8b, v16.8h, #6
rshrn v17.8b, v17.8h, #6
.else
add v16.8h, v16.8h, v22.8h
add v17.8h, v17.8h, v22.8h
shrn v16.8b, v16.8h, #6
shrn v17.8b, v17.8h, #6
.endif
.ifc \type,avg
ld1 {v20.8b}, [x8], x2
ld1 {v21.8b}, [x8], x2
urhadd v16.8b, v16.8b, v20.8b
urhadd v17.8b, v17.8b, v21.8b
.endif
st1 {v16.8b}, [x0], x2
st1 {v17.8b}, [x0], x2
b.gt 1b
ret
2: adds w12, w12, w6
dup v0.8b, w4
b.eq 5f
tst w6, w6
dup v1.8b, w12
b.eq 4f
ld1 {v4.8b}, [x1], x2
3: ld1 {v6.8b}, [x1], x2
umull v16.8h, v4.8b, v0.8b
umlal v16.8h, v6.8b, v1.8b
ld1 {v4.8b}, [x1], x2
umull v17.8h, v6.8b, v0.8b
umlal v17.8h, v4.8b, v1.8b
prfm pldl1strm, [x1]
.ifc \codec,h264
rshrn v16.8b, v16.8h, #6
rshrn v17.8b, v17.8h, #6
.else
add v16.8h, v16.8h, v22.8h
add v17.8h, v17.8h, v22.8h
shrn v16.8b, v16.8h, #6
shrn v17.8b, v17.8h, #6
.endif
prfm pldl1strm, [x1, x2]
.ifc \type,avg
ld1 {v20.8b}, [x8], x2
ld1 {v21.8b}, [x8], x2
urhadd v16.8b, v16.8b, v20.8b
urhadd v17.8b, v17.8b, v21.8b
.endif
subs w3, w3, #2
st1 {v16.8b}, [x0], x2
st1 {v17.8b}, [x0], x2
b.gt 3b
ret
4: ld1 {v4.8b, v5.8b}, [x1], x2
ld1 {v6.8b, v7.8b}, [x1], x2
ext v5.8b, v4.8b, v5.8b, #1
ext v7.8b, v6.8b, v7.8b, #1
prfm pldl1strm, [x1]
subs w3, w3, #2
umull v16.8h, v4.8b, v0.8b
umlal v16.8h, v5.8b, v1.8b
umull v17.8h, v6.8b, v0.8b
umlal v17.8h, v7.8b, v1.8b
prfm pldl1strm, [x1, x2]
.ifc \codec,h264
rshrn v16.8b, v16.8h, #6
rshrn v17.8b, v17.8h, #6
.else
add v16.8h, v16.8h, v22.8h
add v17.8h, v17.8h, v22.8h
shrn v16.8b, v16.8h, #6
shrn v17.8b, v17.8h, #6
.endif
.ifc \type,avg
ld1 {v20.8b}, [x8], x2
ld1 {v21.8b}, [x8], x2
urhadd v16.8b, v16.8b, v20.8b
urhadd v17.8b, v17.8b, v21.8b
.endif
st1 {v16.8b}, [x0], x2
st1 {v17.8b}, [x0], x2
b.gt 4b
ret
5: ld1 {v4.8b}, [x1], x2
ld1 {v5.8b}, [x1], x2
prfm pldl1strm, [x1]
subs w3, w3, #2
umull v16.8h, v4.8b, v0.8b
umull v17.8h, v5.8b, v0.8b
prfm pldl1strm, [x1, x2]
.ifc \codec,h264
rshrn v16.8b, v16.8h, #6
rshrn v17.8b, v17.8h, #6
.else
add v16.8h, v16.8h, v22.8h
add v17.8h, v17.8h, v22.8h
shrn v16.8b, v16.8h, #6
shrn v17.8b, v17.8h, #6
.endif
.ifc \type,avg
ld1 {v20.8b}, [x8], x2
ld1 {v21.8b}, [x8], x2
urhadd v16.8b, v16.8b, v20.8b
urhadd v17.8b, v17.8b, v21.8b
.endif
st1 {v16.8b}, [x0], x2
st1 {v17.8b}, [x0], x2
b.gt 5b
ret
endfunc
.endm
/* chroma_mc4(uint8_t *dst, const uint8_t *src, ptrdiff_t stride, int h, int x, int y) */
.macro h264_chroma_mc4 type, codec=h264
function ff_\type\()_\codec\()_chroma_mc4_neon, export=1
.ifc \type,avg
mov x8, x0
.endif
prfm pldl1strm, [x1]
prfm pldl1strm, [x1, x2]
.ifc \codec,rv40
movrel x6, rv40bias
lsr w9, w5, #1
lsr w10, w4, #1
lsl w9, w9, #3
lsl w10, w10, #1
add w9, w9, w10
add x6, x6, w9, uxtw
ld1r {v22.8h}, [x6]
.endif
.ifc \codec,vc1
movi v22.8h, #28
.endif
mul w7, w4, w5
lsl w14, w5, #3
lsl w13, w4, #3
cmp w7, #0
sub w6, w14, w7
sub w12, w13, w7
sub w4, w7, w13
sub w4, w4, w14
add w4, w4, #64
b.eq 2f
dup v24.8b, w4
dup v25.8b, w12
ld1 {v4.8b}, [x1], x2
dup v26.8b, w6
dup v27.8b, w7
ext v5.8b, v4.8b, v5.8b, #1
trn1 v0.2s, v24.2s, v25.2s
trn1 v2.2s, v26.2s, v27.2s
trn1 v4.2s, v4.2s, v5.2s
1: ld1 {v6.8b}, [x1], x2
ext v7.8b, v6.8b, v7.8b, #1
trn1 v6.2s, v6.2s, v7.2s
umull v18.8h, v4.8b, v0.8b
umlal v18.8h, v6.8b, v2.8b
ld1 {v4.8b}, [x1], x2
ext v5.8b, v4.8b, v5.8b, #1
trn1 v4.2s, v4.2s, v5.2s
prfm pldl1strm, [x1]
umull v19.8h, v6.8b, v0.8b
umlal v19.8h, v4.8b, v2.8b
trn1 v30.2d, v18.2d, v19.2d
trn2 v31.2d, v18.2d, v19.2d
add v18.8h, v30.8h, v31.8h
.ifc \codec,h264
rshrn v16.8b, v18.8h, #6
.else
add v18.8h, v18.8h, v22.8h
shrn v16.8b, v18.8h, #6
.endif
subs w3, w3, #2
prfm pldl1strm, [x1, x2]
.ifc \type,avg
ld1 {v20.s}[0], [x8], x2
ld1 {v20.s}[1], [x8], x2
urhadd v16.8b, v16.8b, v20.8b
.endif
st1 {v16.s}[0], [x0], x2
st1 {v16.s}[1], [x0], x2
b.gt 1b
ret
2: adds w12, w12, w6
dup v30.8b, w4
b.eq 5f
tst w6, w6
dup v31.8b, w12
trn1 v0.2s, v30.2s, v31.2s
trn2 v1.2s, v30.2s, v31.2s
b.eq 4f
ext v1.8b, v0.8b, v1.8b, #4
ld1 {v4.s}[0], [x1], x2
3: ld1 {v4.s}[1], [x1], x2
umull v18.8h, v4.8b, v0.8b
ld1 {v4.s}[0], [x1], x2
umull v19.8h, v4.8b, v1.8b
trn1 v30.2d, v18.2d, v19.2d
trn2 v31.2d, v18.2d, v19.2d
add v18.8h, v30.8h, v31.8h
prfm pldl1strm, [x1]
.ifc \codec,h264
rshrn v16.8b, v18.8h, #6
.else
add v18.8h, v18.8h, v22.8h
shrn v16.8b, v18.8h, #6
.endif
.ifc \type,avg
ld1 {v20.s}[0], [x8], x2
ld1 {v20.s}[1], [x8], x2
urhadd v16.8b, v16.8b, v20.8b
.endif
subs w3, w3, #2
prfm pldl1strm, [x1, x2]
st1 {v16.s}[0], [x0], x2
st1 {v16.s}[1], [x0], x2
b.gt 3b
ret
4: ld1 {v4.8b}, [x1], x2
ld1 {v6.8b}, [x1], x2
ext v5.8b, v4.8b, v5.8b, #1
ext v7.8b, v6.8b, v7.8b, #1
trn1 v4.2s, v4.2s, v5.2s
trn1 v6.2s, v6.2s, v7.2s
umull v18.8h, v4.8b, v0.8b
umull v19.8h, v6.8b, v0.8b
subs w3, w3, #2
trn1 v30.2d, v18.2d, v19.2d
trn2 v31.2d, v18.2d, v19.2d
add v18.8h, v30.8h, v31.8h
prfm pldl1strm, [x1]
.ifc \codec,h264
rshrn v16.8b, v18.8h, #6
.else
add v18.8h, v18.8h, v22.8h
shrn v16.8b, v18.8h, #6
.endif
.ifc \type,avg
ld1 {v20.s}[0], [x8], x2
ld1 {v20.s}[1], [x8], x2
urhadd v16.8b, v16.8b, v20.8b
.endif
prfm pldl1strm, [x1]
st1 {v16.s}[0], [x0], x2
st1 {v16.s}[1], [x0], x2
b.gt 4b
ret
5: ld1 {v4.s}[0], [x1], x2
ld1 {v4.s}[1], [x1], x2
umull v18.8h, v4.8b, v30.8b
subs w3, w3, #2
prfm pldl1strm, [x1]
.ifc \codec,h264
rshrn v16.8b, v18.8h, #6
.else
add v18.8h, v18.8h, v22.8h
shrn v16.8b, v18.8h, #6
.endif
.ifc \type,avg
ld1 {v20.s}[0], [x8], x2
ld1 {v20.s}[1], [x8], x2
urhadd v16.8b, v16.8b, v20.8b
.endif
prfm pldl1strm, [x1]
st1 {v16.s}[0], [x0], x2
st1 {v16.s}[1], [x0], x2
b.gt 5b
ret
endfunc
.endm
.macro h264_chroma_mc2 type
function ff_\type\()_h264_chroma_mc2_neon, export=1
prfm pldl1strm, [x1]
prfm pldl1strm, [x1, x2]
orr w7, w4, w5
cbz w7, 2f
mul w7, w4, w5
lsl w14, w5, #3
lsl w13, w4, #3
sub w6, w14, w7
sub w12, w13, w7
sub w4, w7, w13
sub w4, w4, w14
add w4, w4, #64
dup v0.8b, w4
dup v2.8b, w12
dup v1.8b, w6
dup v3.8b, w7
trn1 v0.4h, v0.4h, v2.4h
trn1 v1.4h, v1.4h, v3.4h
1:
ld1 {v4.s}[0], [x1], x2
ld1 {v4.s}[1], [x1], x2
rev64 v5.2s, v4.2s
ld1 {v5.s}[1], [x1]
ext v6.8b, v4.8b, v5.8b, #1
ext v7.8b, v5.8b, v4.8b, #1
trn1 v4.4h, v4.4h, v6.4h
trn1 v5.4h, v5.4h, v7.4h
umull v16.8h, v4.8b, v0.8b
umlal v16.8h, v5.8b, v1.8b
.ifc \type,avg
ld1 {v18.h}[0], [x0], x2
ld1 {v18.h}[2], [x0]
sub x0, x0, x2
.endif
rev64 v17.4s, v16.4s
add v16.8h, v16.8h, v17.8h
rshrn v16.8b, v16.8h, #6
.ifc \type,avg
urhadd v16.8b, v16.8b, v18.8b
.endif
st1 {v16.h}[0], [x0], x2
st1 {v16.h}[2], [x0], x2
subs w3, w3, #2
b.gt 1b
ret
2:
ld1 {v16.h}[0], [x1], x2
ld1 {v16.h}[1], [x1], x2
.ifc \type,avg
ld1 {v18.h}[0], [x0], x2
ld1 {v18.h}[1], [x0]
sub x0, x0, x2
urhadd v16.8b, v16.8b, v18.8b
.endif
st1 {v16.h}[0], [x0], x2
st1 {v16.h}[1], [x0], x2
subs w3, w3, #2
b.gt 2b
ret
endfunc
.endm
h264_chroma_mc8 put
h264_chroma_mc8 avg
h264_chroma_mc4 put
h264_chroma_mc4 avg
h264_chroma_mc2 put
h264_chroma_mc2 avg
#if CONFIG_RV40_DECODER
const rv40bias
.short 0, 16, 32, 16
.short 32, 28, 32, 28
.short 0, 32, 16, 32
.short 32, 28, 32, 28
endconst
h264_chroma_mc8 put, rv40
h264_chroma_mc8 avg, rv40
h264_chroma_mc4 put, rv40
h264_chroma_mc4 avg, rv40
#endif
#if CONFIG_VC1DSP
h264_chroma_mc8 put, vc1
h264_chroma_mc8 avg, vc1
h264_chroma_mc4 put, vc1
h264_chroma_mc4 avg, vc1
#endif
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