summaryrefslogtreecommitdiffstats
path: root/media/ffvpx/libavutil/arm/float_dsp_neon.S
blob: 382322760800011e0cc22947a27fdb515fec3a2e (plain)
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
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
/*
 * ARM NEON optimised Float DSP functions
 * Copyright (c) 2008 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 "config.h"
#include "asm.S"

function ff_vector_fmul_neon, export=1
        subs            r3,  r3,  #8
        vld1.32         {d0-d3},  [r1,:128]!
        vld1.32         {d4-d7},  [r2,:128]!
        vmul.f32        q8,  q0,  q2
        vmul.f32        q9,  q1,  q3
        beq             3f
        bics            ip,  r3,  #15
        beq             2f
1:      subs            ip,  ip,  #16
        vld1.32         {d0-d1},  [r1,:128]!
        vld1.32         {d4-d5},  [r2,:128]!
        vmul.f32        q10, q0,  q2
        vld1.32         {d2-d3},  [r1,:128]!
        vld1.32         {d6-d7},  [r2,:128]!
        vmul.f32        q11, q1,  q3
        vst1.32         {d16-d19},[r0,:128]!
        vld1.32         {d0-d1},  [r1,:128]!
        vld1.32         {d4-d5},  [r2,:128]!
        vmul.f32        q8,  q0,  q2
        vld1.32         {d2-d3},  [r1,:128]!
        vld1.32         {d6-d7},  [r2,:128]!
        vmul.f32        q9,  q1,  q3
        vst1.32         {d20-d23},[r0,:128]!
        bne             1b
        ands            r3,  r3,  #15
        beq             3f
2:      vld1.32         {d0-d1},  [r1,:128]!
        vld1.32         {d4-d5},  [r2,:128]!
        vst1.32         {d16-d17},[r0,:128]!
        vmul.f32        q8,  q0,  q2
        vld1.32         {d2-d3},  [r1,:128]!
        vld1.32         {d6-d7},  [r2,:128]!
        vst1.32         {d18-d19},[r0,:128]!
        vmul.f32        q9,  q1,  q3
3:      vst1.32         {d16-d19},[r0,:128]!
        bx              lr
endfunc

function ff_vector_fmac_scalar_neon, export=1
VFP     len .req r2
VFP     acc .req r3
NOVFP   len .req r3
NOVFP   acc .req r2
VFP     vdup.32         q15, d0[0]
NOVFP   vdup.32         q15, r2
        bics            r12, len, #15
        mov             acc, r0
        beq             3f
        vld1.32         {q0},     [r1,:128]!
        vld1.32         {q8},     [acc,:128]!
        vld1.32         {q1},     [r1,:128]!
        vld1.32         {q9},     [acc,:128]!
1:      vmla.f32        q8,  q0,  q15
        vld1.32         {q2},     [r1,:128]!
        vld1.32         {q10},    [acc,:128]!
        vmla.f32        q9,  q1,  q15
        vld1.32         {q3},     [r1,:128]!
        vld1.32         {q11},    [acc,:128]!
        vmla.f32        q10, q2,  q15
        vst1.32         {q8},     [r0,:128]!
        vmla.f32        q11, q3,  q15
        vst1.32         {q9},     [r0,:128]!
        subs            r12, r12, #16
        beq             2f
        vld1.32         {q0},     [r1,:128]!
        vld1.32         {q8},     [acc,:128]!
        vst1.32         {q10},    [r0,:128]!
        vld1.32         {q1},     [r1,:128]!
        vld1.32         {q9},     [acc,:128]!
        vst1.32         {q11},    [r0,:128]!
        b               1b
2:      vst1.32         {q10},    [r0,:128]!
        vst1.32         {q11},    [r0,:128]!
        ands            len, len, #15
        it              eq
        bxeq            lr
3:      vld1.32         {q0},     [r1,:128]!
        vld1.32         {q8},     [acc,:128]!
        vmla.f32        q8,  q0,  q15
        vst1.32         {q8},     [r0,:128]!
        subs            len, len, #4
        bgt             3b
        bx              lr
        .unreq          len
endfunc

function ff_vector_fmul_scalar_neon, export=1
VFP     len .req r2
NOVFP   len .req r3
VFP     vdup.32         q8,  d0[0]
NOVFP   vdup.32         q8,  r2
        bics            r12, len, #15
        beq             3f
        vld1.32         {q0},[r1,:128]!
        vld1.32         {q1},[r1,:128]!
1:      vmul.f32        q0,  q0,  q8
        vld1.32         {q2},[r1,:128]!
        vmul.f32        q1,  q1,  q8
        vld1.32         {q3},[r1,:128]!
        vmul.f32        q2,  q2,  q8
        vst1.32         {q0},[r0,:128]!
        vmul.f32        q3,  q3,  q8
        vst1.32         {q1},[r0,:128]!
        subs            r12, r12, #16
        beq             2f
        vld1.32         {q0},[r1,:128]!
        vst1.32         {q2},[r0,:128]!
        vld1.32         {q1},[r1,:128]!
        vst1.32         {q3},[r0,:128]!
        b               1b
2:      vst1.32         {q2},[r0,:128]!
        vst1.32         {q3},[r0,:128]!
        ands            len, len, #15
        it              eq
        bxeq            lr
3:      vld1.32         {q0},[r1,:128]!
        vmul.f32        q0,  q0,  q8
        vst1.32         {q0},[r0,:128]!
        subs            len, len, #4
        bgt             3b
        bx              lr
        .unreq          len
endfunc

function ff_vector_fmul_window_neon, export=1
        push            {r4,r5,lr}
        ldr             lr,  [sp, #12]
        sub             r2,  r2,  #8
        sub             r5,  lr,  #2
        add             r2,  r2,  r5, lsl #2
        add             r4,  r3,  r5, lsl #3
        add             ip,  r0,  r5, lsl #3
        mov             r5,  #-16
        vld1.32         {d0,d1},  [r1,:128]!
        vld1.32         {d2,d3},  [r2,:128], r5
        vld1.32         {d4,d5},  [r3,:128]!
        vld1.32         {d6,d7},  [r4,:128], r5
1:      subs            lr,  lr,  #4
        vmul.f32        d22, d0,  d4
        vrev64.32       q3,  q3
        vmul.f32        d23, d1,  d5
        vrev64.32       q1,  q1
        vmul.f32        d20, d0,  d7
        vmul.f32        d21, d1,  d6
        beq             2f
        vmla.f32        d22, d3,  d7
        vld1.32         {d0,d1},  [r1,:128]!
        vmla.f32        d23, d2,  d6
        vld1.32         {d18,d19},[r2,:128], r5
        vmls.f32        d20, d3,  d4
        vld1.32         {d24,d25},[r3,:128]!
        vmls.f32        d21, d2,  d5
        vld1.32         {d6,d7},  [r4,:128], r5
        vmov            q1,  q9
        vrev64.32       q11, q11
        vmov            q2,  q12
        vswp            d22, d23
        vst1.32         {d20,d21},[r0,:128]!
        vst1.32         {d22,d23},[ip,:128], r5
        b               1b
2:      vmla.f32        d22, d3,  d7
        vmla.f32        d23, d2,  d6
        vmls.f32        d20, d3,  d4
        vmls.f32        d21, d2,  d5
        vrev64.32       q11, q11
        vswp            d22, d23
        vst1.32         {d20,d21},[r0,:128]!
        vst1.32         {d22,d23},[ip,:128], r5
        pop             {r4,r5,pc}
endfunc

function ff_vector_fmul_add_neon, export=1
        ldr             r12, [sp]
        vld1.32         {q0-q1},  [r1,:128]!
        vld1.32         {q8-q9},  [r2,:128]!
        vld1.32         {q2-q3},  [r3,:128]!
        vmul.f32        q10, q0,  q8
        vmul.f32        q11, q1,  q9
1:      vadd.f32        q12, q2,  q10
        vadd.f32        q13, q3,  q11
        pld             [r1, #16]
        pld             [r2, #16]
        pld             [r3, #16]
        subs            r12, r12, #8
        beq             2f
        vld1.32         {q0},     [r1,:128]!
        vld1.32         {q8},     [r2,:128]!
        vmul.f32        q10, q0,  q8
        vld1.32         {q1},     [r1,:128]!
        vld1.32         {q9},     [r2,:128]!
        vmul.f32        q11, q1,  q9
        vld1.32         {q2-q3},  [r3,:128]!
        vst1.32         {q12-q13},[r0,:128]!
        b               1b
2:      vst1.32         {q12-q13},[r0,:128]!
        bx              lr
endfunc

function ff_vector_fmul_reverse_neon, export=1
        add             r2,  r2,  r3,  lsl #2
        sub             r2,  r2,  #32
        mov             r12, #-32
        vld1.32         {q0-q1},  [r1,:128]!
        vld1.32         {q2-q3},  [r2,:128], r12
1:      pld             [r1, #32]
        vrev64.32       q3,  q3
        vmul.f32        d16, d0,  d7
        vmul.f32        d17, d1,  d6
        pld             [r2, #-32]
        vrev64.32       q2,  q2
        vmul.f32        d18, d2,  d5
        vmul.f32        d19, d3,  d4
        subs            r3,  r3,  #8
        beq             2f
        vld1.32         {q0-q1},  [r1,:128]!
        vld1.32         {q2-q3},  [r2,:128], r12
        vst1.32         {q8-q9},  [r0,:128]!
        b               1b
2:      vst1.32         {q8-q9},  [r0,:128]!
        bx              lr
endfunc

function ff_butterflies_float_neon, export=1
1:      vld1.32         {q0},[r0,:128]
        vld1.32         {q1},[r1,:128]
        vsub.f32        q2,  q0,  q1
        vadd.f32        q1,  q0,  q1
        vst1.32         {q2},[r1,:128]!
        vst1.32         {q1},[r0,:128]!
        subs            r2,  r2,  #4
        bgt             1b
        bx              lr
endfunc

function ff_scalarproduct_float_neon, export=1
        vmov.f32        q2,  #0.0
1:      vld1.32         {q0},[r0,:128]!
        vld1.32         {q1},[r1,:128]!
        vmla.f32        q2,  q0,  q1
        subs            r2,  r2,  #4
        bgt             1b
        vadd.f32        d0,  d4,  d5
        vpadd.f32       d0,  d0,  d0
NOVFP   vmov.32         r0,  d0[0]
        bx              lr
endfunc