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
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
|
/*
* Bluetooth low-complexity, subband codec (SBC)
*
* Copyright (C) 2017 Aurelien Jacobs <aurel@gnuage.org>
* Copyright (C) 2008-2010 Nokia Corporation
* Copyright (C) 2004-2010 Marcel Holtmann <marcel@holtmann.org>
* Copyright (C) 2004-2005 Henryk Ploetz <henryk@ploetzli.ch>
* Copyright (C) 2005-2006 Brad Midgley <bmidgley@xmission.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
*/
/**
* @file
* SBC ARMv6 optimizations. The instructions are scheduled for ARM11 pipeline.
*/
#include "libavutil/arm/asm.S"
function ff_sbc_analyze_4_armv6, export=1
@ r0 = in, r1 = out, r2 = consts
push {r1, r3-r7, lr}
push {r8-r12, r14}
ldrd r4, r5, [r0, #0]
ldrd r6, r7, [r2, #0]
ldrd r8, r9, [r0, #16]
ldrd r10, r11, [r2, #16]
mov r14, #0x8000
smlad r3, r4, r6, r14
smlad r12, r5, r7, r14
ldrd r4, r5, [r0, #32]
ldrd r6, r7, [r2, #32]
smlad r3, r8, r10, r3
smlad r12, r9, r11, r12
ldrd r8, r9, [r0, #48]
ldrd r10, r11, [r2, #48]
smlad r3, r4, r6, r3
smlad r12, r5, r7, r12
ldrd r4, r5, [r0, #64]
ldrd r6, r7, [r2, #64]
smlad r3, r8, r10, r3
smlad r12, r9, r11, r12
ldrd r8, r9, [r0, #8]
ldrd r10, r11, [r2, #8]
smlad r3, r4, r6, r3 @ t1[0] is done
smlad r12, r5, r7, r12 @ t1[1] is done
ldrd r4, r5, [r0, #24]
ldrd r6, r7, [r2, #24]
pkhtb r3, r12, r3, asr #16 @ combine t1[0] and t1[1]
smlad r12, r8, r10, r14
smlad r14, r9, r11, r14
ldrd r8, r9, [r0, #40]
ldrd r10, r11, [r2, #40]
smlad r12, r4, r6, r12
smlad r14, r5, r7, r14
ldrd r4, r5, [r0, #56]
ldrd r6, r7, [r2, #56]
smlad r12, r8, r10, r12
smlad r14, r9, r11, r14
ldrd r8, r9, [r0, #72]
ldrd r10, r11, [r2, #72]
smlad r12, r4, r6, r12
smlad r14, r5, r7, r14
ldrd r4, r5, [r2, #80] @ start loading cos table
smlad r12, r8, r10, r12 @ t1[2] is done
smlad r14, r9, r11, r14 @ t1[3] is done
ldrd r6, r7, [r2, #88]
ldrd r8, r9, [r2, #96]
ldrd r10, r11, [r2, #104] @ cos table fully loaded
pkhtb r12, r14, r12, asr #16 @ combine t1[2] and t1[3]
smuad r4, r3, r4
smuad r5, r3, r5
smlad r4, r12, r8, r4
smlad r5, r12, r9, r5
smuad r6, r3, r6
smuad r7, r3, r7
smlad r6, r12, r10, r6
smlad r7, r12, r11, r7
pop {r8-r12, r14}
stmia r1, {r4, r5, r6, r7}
pop {r1, r3-r7, pc}
endfunc
function ff_sbc_analyze_8_armv6, export=1
@ r0 = in, r1 = out, r2 = consts
push {r1, r3-r7, lr}
push {r8-r12, r14}
ldrd r4, r5, [r0, #24]
ldrd r6, r7, [r2, #24]
ldrd r8, r9, [r0, #56]
ldrd r10, r11, [r2, #56]
mov r14, #0x8000
smlad r3, r4, r6, r14
smlad r12, r5, r7, r14
ldrd r4, r5, [r0, #88]
ldrd r6, r7, [r2, #88]
smlad r3, r8, r10, r3
smlad r12, r9, r11, r12
ldrd r8, r9, [r0, #120]
ldrd r10, r11, [r2, #120]
smlad r3, r4, r6, r3
smlad r12, r5, r7, r12
ldrd r4, r5, [r0, #152]
ldrd r6, r7, [r2, #152]
smlad r3, r8, r10, r3
smlad r12, r9, r11, r12
ldrd r8, r9, [r0, #16]
ldrd r10, r11, [r2, #16]
smlad r3, r4, r6, r3 @ t1[6] is done
smlad r12, r5, r7, r12 @ t1[7] is done
ldrd r4, r5, [r0, #48]
ldrd r6, r7, [r2, #48]
pkhtb r3, r12, r3, asr #16 @ combine t1[6] and t1[7]
str r3, [sp, #-4]! @ save to stack
smlad r3, r8, r10, r14
smlad r12, r9, r11, r14
ldrd r8, r9, [r0, #80]
ldrd r10, r11, [r2, #80]
smlad r3, r4, r6, r3
smlad r12, r5, r7, r12
ldrd r4, r5, [r0, #112]
ldrd r6, r7, [r2, #112]
smlad r3, r8, r10, r3
smlad r12, r9, r11, r12
ldrd r8, r9, [r0, #144]
ldrd r10, r11, [r2, #144]
smlad r3, r4, r6, r3
smlad r12, r5, r7, r12
ldrd r4, r5, [r0, #0]
ldrd r6, r7, [r2, #0]
smlad r3, r8, r10, r3 @ t1[4] is done
smlad r12, r9, r11, r12 @ t1[5] is done
ldrd r8, r9, [r0, #32]
ldrd r10, r11, [r2, #32]
pkhtb r3, r12, r3, asr #16 @ combine t1[4] and t1[5]
str r3, [sp, #-4]! @ save to stack
smlad r3, r4, r6, r14
smlad r12, r5, r7, r14
ldrd r4, r5, [r0, #64]
ldrd r6, r7, [r2, #64]
smlad r3, r8, r10, r3
smlad r12, r9, r11, r12
ldrd r8, r9, [r0, #96]
ldrd r10, r11, [r2, #96]
smlad r3, r4, r6, r3
smlad r12, r5, r7, r12
ldrd r4, r5, [r0, #128]
ldrd r6, r7, [r2, #128]
smlad r3, r8, r10, r3
smlad r12, r9, r11, r12
ldrd r8, r9, [r0, #8]
ldrd r10, r11, [r2, #8]
smlad r3, r4, r6, r3 @ t1[0] is done
smlad r12, r5, r7, r12 @ t1[1] is done
ldrd r4, r5, [r0, #40]
ldrd r6, r7, [r2, #40]
pkhtb r3, r12, r3, asr #16 @ combine t1[0] and t1[1]
smlad r12, r8, r10, r14
smlad r14, r9, r11, r14
ldrd r8, r9, [r0, #72]
ldrd r10, r11, [r2, #72]
smlad r12, r4, r6, r12
smlad r14, r5, r7, r14
ldrd r4, r5, [r0, #104]
ldrd r6, r7, [r2, #104]
smlad r12, r8, r10, r12
smlad r14, r9, r11, r14
ldrd r8, r9, [r0, #136]
ldrd r10, r11, [r2, #136]!
smlad r12, r4, r6, r12
smlad r14, r5, r7, r14
ldrd r4, r5, [r2, #(160 - 136 + 0)]
smlad r12, r8, r10, r12 @ t1[2] is done
smlad r14, r9, r11, r14 @ t1[3] is done
ldrd r6, r7, [r2, #(160 - 136 + 8)]
smuad r4, r3, r4
smuad r5, r3, r5
pkhtb r12, r14, r12, asr #16 @ combine t1[2] and t1[3]
@ r3 = t2[0:1]
@ r12 = t2[2:3]
pop {r0, r14} @ t2[4:5], t2[6:7]
ldrd r8, r9, [r2, #(160 - 136 + 32)]
smuad r6, r3, r6
smuad r7, r3, r7
ldrd r10, r11, [r2, #(160 - 136 + 40)]
smlad r4, r12, r8, r4
smlad r5, r12, r9, r5
ldrd r8, r9, [r2, #(160 - 136 + 64)]
smlad r6, r12, r10, r6
smlad r7, r12, r11, r7
ldrd r10, r11, [r2, #(160 - 136 + 72)]
smlad r4, r0, r8, r4
smlad r5, r0, r9, r5
ldrd r8, r9, [r2, #(160 - 136 + 96)]
smlad r6, r0, r10, r6
smlad r7, r0, r11, r7
ldrd r10, r11, [r2, #(160 - 136 + 104)]
smlad r4, r14, r8, r4
smlad r5, r14, r9, r5
ldrd r8, r9, [r2, #(160 - 136 + 16 + 0)]
smlad r6, r14, r10, r6
smlad r7, r14, r11, r7
ldrd r10, r11, [r2, #(160 - 136 + 16 + 8)]
stmia r1!, {r4, r5}
smuad r4, r3, r8
smuad r5, r3, r9
ldrd r8, r9, [r2, #(160 - 136 + 16 + 32)]
stmia r1!, {r6, r7}
smuad r6, r3, r10
smuad r7, r3, r11
ldrd r10, r11, [r2, #(160 - 136 + 16 + 40)]
smlad r4, r12, r8, r4
smlad r5, r12, r9, r5
ldrd r8, r9, [r2, #(160 - 136 + 16 + 64)]
smlad r6, r12, r10, r6
smlad r7, r12, r11, r7
ldrd r10, r11, [r2, #(160 - 136 + 16 + 72)]
smlad r4, r0, r8, r4
smlad r5, r0, r9, r5
ldrd r8, r9, [r2, #(160 - 136 + 16 + 96)]
smlad r6, r0, r10, r6
smlad r7, r0, r11, r7
ldrd r10, r11, [r2, #(160 - 136 + 16 + 104)]
smlad r4, r14, r8, r4
smlad r5, r14, r9, r5
smlad r6, r14, r10, r6
smlad r7, r14, r11, r7
pop {r8-r12, r14}
stmia r1!, {r4, r5, r6, r7}
pop {r1, r3-r7, pc}
endfunc
|
