aboutsummaryrefslogtreecommitdiffstats
path: root/libavcodec/arm/me_cmp_armv6.S
blob: fa5a82301e7a40e9374d16c96c3b35ba9b22c428 (plain) (blame)
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
/*
 * Copyright (c) 2009 Mans Rullgard <mans@mansr.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/arm/asm.S"

function ff_pix_abs16_armv6, export=1
        ldr             r0,  [sp]
        push            {r4-r9, lr}
        mov             r12, #0
        mov             lr,  #0
        ldm             r1,  {r4-r7}
        ldr             r8,  [r2]
1:
        ldr             r9,  [r2, #4]
        pld             [r1, r3]
        usada8          r12, r4,  r8,  r12
        ldr             r8,  [r2, #8]
        pld             [r2, r3]
        usada8          lr,  r5,  r9,  lr
        ldr             r9,  [r2, #12]
        usada8          r12, r6,  r8,  r12
        subs            r0,  r0,  #1
        usada8          lr,  r7,  r9,  lr
        beq             2f
        add             r1,  r1,  r3
        ldm             r1,  {r4-r7}
        add             r2,  r2,  r3
        ldr             r8,  [r2]
        b               1b
2:
        add             r0,  r12, lr
        pop             {r4-r9, pc}
endfunc

function ff_pix_abs16_x2_armv6, export=1
        ldr             r12, [sp]
        push            {r4-r11, lr}
        mov             r0,  #0
        mov             lr,  #1
        orr             lr,  lr,  lr,  lsl #8
        orr             lr,  lr,  lr,  lsl #16
1:
        ldr             r8,  [r2]
        ldr             r9,  [r2, #4]
        lsr             r10, r8,  #8
        ldr             r4,  [r1]
        lsr             r6,  r9,  #8
        orr             r10, r10, r9,  lsl #24
        ldr             r5,  [r2, #8]
        eor             r11, r8,  r10
        uhadd8          r7,  r8,  r10
        orr             r6,  r6,  r5,  lsl #24
        and             r11, r11, lr
        uadd8           r7,  r7,  r11
        ldr             r8,  [r1, #4]
        usada8          r0,  r4,  r7,  r0
        eor             r7,  r9,  r6
        lsr             r10, r5,  #8
        and             r7,  r7,  lr
        uhadd8          r4,  r9,  r6
        ldr             r6,  [r2, #12]
        uadd8           r4,  r4,  r7
        pld             [r1, r3]
        orr             r10, r10, r6,  lsl #24
        usada8          r0,  r8,  r4,  r0
        ldr             r4,  [r1, #8]
        eor             r11, r5,  r10
        ldrb            r7,  [r2, #16]
        and             r11, r11, lr
        uhadd8          r8,  r5,  r10
        ldr             r5,  [r1, #12]
        uadd8           r8,  r8,  r11
        pld             [r2, r3]
        lsr             r10, r6,  #8
        usada8          r0,  r4,  r8,  r0
        orr             r10, r10, r7,  lsl #24
        subs            r12,  r12,  #1
        eor             r11, r6,  r10
        add             r1,  r1,  r3
        uhadd8          r9,  r6,  r10
        and             r11, r11, lr
        uadd8           r9,  r9,  r11
        add             r2,  r2,  r3
        usada8          r0,  r5,  r9,  r0
        bgt             1b

        pop             {r4-r11, pc}
endfunc

.macro  usad_y2         p0,  p1,  p2,  p3,  n0,  n1,  n2,  n3
        ldr             \n0, [r2]
        eor             \n1, \p0, \n0
        uhadd8          \p0, \p0, \n0
        and             \n1, \n1, lr
        ldr             \n2, [r1]
        uadd8           \p0, \p0, \n1
        ldr             \n1, [r2, #4]
        usada8          r0,  \p0, \n2, r0
        pld             [r1,  r3]
        eor             \n3, \p1, \n1
        uhadd8          \p1, \p1, \n1
        and             \n3, \n3, lr
        ldr             \p0, [r1, #4]
        uadd8           \p1, \p1, \n3
        ldr             \n2, [r2, #8]
        usada8          r0,  \p1, \p0, r0
        pld             [r2,  r3]
        eor             \p0, \p2, \n2
        uhadd8          \p2, \p2, \n2
        and             \p0, \p0, lr
        ldr             \p1, [r1, #8]
        uadd8           \p2, \p2, \p0
        ldr             \n3, [r2, #12]
        usada8          r0,  \p2, \p1, r0
        eor             \p1, \p3, \n3
        uhadd8          \p3, \p3, \n3
        and             \p1, \p1, lr
        ldr             \p0,  [r1, #12]
        uadd8           \p3, \p3, \p1
        add             r1,  r1,  r3
        usada8          r0,  \p3, \p0,  r0
        add             r2,  r2,  r3
.endm

function ff_pix_abs16_y2_armv6, export=1
        pld             [r1]
        pld             [r2]
        ldr             r12, [sp]
        push            {r4-r11, lr}
        mov             r0,  #0
        mov             lr,  #1
        orr             lr,  lr,  lr,  lsl #8
        orr             lr,  lr,  lr,  lsl #16
        ldr             r4,  [r2]
        ldr             r5,  [r2, #4]
        ldr             r6,  [r2, #8]
        ldr             r7,  [r2, #12]
        add             r2,  r2,  r3
1:
        usad_y2         r4,  r5,  r6,  r7,  r8,  r9,  r10, r11
        subs            r12, r12, #2
        usad_y2         r8,  r9,  r10, r11, r4,  r5,  r6,  r7
        bgt             1b

        pop             {r4-r11, pc}
endfunc

function ff_pix_abs8_armv6, export=1
        pld             [r2, r3]
        ldr             r12, [sp]
        push            {r4-r9, lr}
        mov             r0,  #0
        mov             lr,  #0
        ldrd_post       r4,  r5,  r1,  r3
1:
        subs            r12, r12, #2
        ldr             r7,  [r2, #4]
        ldr_post        r6,  r2,  r3
        ldrd_post       r8,  r9,  r1,  r3
        usada8          r0,  r4,  r6,  r0
        pld             [r2, r3]
        usada8          lr,  r5,  r7,  lr
        ldr             r7,  [r2, #4]
        ldr_post        r6,  r2,  r3
        beq             2f
        ldrd_post       r4,  r5,  r1,  r3
        usada8          r0,  r8,  r6,  r0
        pld             [r2, r3]
        usada8          lr,  r9,  r7,  lr
        b               1b
2:
        usada8          r0,  r8,  r6,  r0
        usada8          lr,  r9,  r7,  lr
        add             r0,  r0,  lr
        pop             {r4-r9, pc}
endfunc

function ff_sse16_armv6, export=1
        ldr             r12, [sp]
        push            {r4-r9, lr}
        mov             r0,  #0
1:
        ldrd            r4,  r5,  [r1]
        ldr             r8,  [r2]
        uxtb16          lr,  r4
        uxtb16          r4,  r4,  ror #8
        uxtb16          r9,  r8
        uxtb16          r8,  r8,  ror #8
        ldr             r7,  [r2, #4]
        usub16          lr,  lr,  r9
        usub16          r4,  r4,  r8
        smlad           r0,  lr,  lr,  r0
        uxtb16          r6,  r5
        uxtb16          lr,  r5,  ror #8
        uxtb16          r8,  r7
        uxtb16          r9,  r7,  ror #8
        smlad           r0,  r4,  r4,  r0
        ldrd            r4,  r5,  [r1, #8]
        usub16          r6,  r6,  r8
        usub16          r8,  lr,  r9
        ldr             r7,  [r2, #8]
        smlad           r0,  r6,  r6,  r0
        uxtb16          lr,  r4
        uxtb16          r4,  r4,  ror #8
        uxtb16          r9,  r7
        uxtb16          r7,  r7, ror #8
        smlad           r0,  r8,  r8,  r0
        ldr             r8,  [r2, #12]
        usub16          lr,  lr,  r9
        usub16          r4,  r4,  r7
        smlad           r0,  lr,  lr,  r0
        uxtb16          r6,  r5
        uxtb16          r5,  r5,  ror #8
        uxtb16          r9,  r8
        uxtb16          r8,  r8,  ror #8
        smlad           r0,  r4,  r4,  r0
        usub16          r6,  r6,  r9
        usub16          r5,  r5,  r8
        smlad           r0,  r6,  r6,  r0
        add             r1,  r1,  r3
        add             r2,  r2,  r3
        subs            r12, r12, #1
        smlad           r0,  r5,  r5,  r0
        bgt             1b

        pop             {r4-r9, pc}
endfunc