1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
|
/*
* Copyright © 2021, VideoLAN and dav1d authors
* Copyright © 2021, Martin Storsjo
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice, this
* list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
* ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include "src/arm/asm.S"
#include "util.S"
// void dav1d_splat_mv_neon(refmvs_block **rr, const refmvs_block *rmv,
// int bx4, int bw4, int bh4)
function splat_mv_neon, export=1
push {r4, lr}
vld1.8 {q3}, [r1]
ldr r4, [sp, #8]
clz r3, r3
adr lr, L(splat_tbl)
sub r3, r3, #26
vext.8 q2, q3, q3, #12
ldr r3, [lr, r3, lsl #2]
add r2, r2, r2, lsl #1
vext.8 q0, q2, q3, #4
add r3, lr, r3
vext.8 q1, q2, q3, #8
lsl r2, r2, #2
vext.8 q2, q2, q3, #12
vmov q3, q0
1:
ldr r1, [r0], #4
subs r4, r4, #1
add r1, r1, r2
bx r3
.align 2
L(splat_tbl):
.word 320f - L(splat_tbl) + CONFIG_THUMB
.word 160f - L(splat_tbl) + CONFIG_THUMB
.word 80f - L(splat_tbl) + CONFIG_THUMB
.word 40f - L(splat_tbl) + CONFIG_THUMB
.word 20f - L(splat_tbl) + CONFIG_THUMB
.word 10f - L(splat_tbl) + CONFIG_THUMB
10:
vst1.8 {d0}, [r1]
vstr s2, [r1, #8]
bgt 1b
pop {r4, pc}
20:
vst1.8 {q0}, [r1]
vstr d2, [r1, #16]
bgt 1b
pop {r4, pc}
40:
vst1.8 {q0, q1}, [r1]!
vst1.8 {q2}, [r1]
bgt 1b
pop {r4, pc}
320:
vst1.8 {q0, q1}, [r1]!
vst1.8 {q2, q3}, [r1]!
vst1.8 {q1, q2}, [r1]!
vst1.8 {q0, q1}, [r1]!
vst1.8 {q2, q3}, [r1]!
vst1.8 {q1, q2}, [r1]!
160:
vst1.8 {q0, q1}, [r1]!
vst1.8 {q2, q3}, [r1]!
vst1.8 {q1, q2}, [r1]!
80:
vst1.8 {q0, q1}, [r1]!
vst1.8 {q2, q3}, [r1]!
vst1.8 {q1, q2}, [r1]
bgt 1b
pop {r4, pc}
endfunc
|
