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comparison libavcodec/arm/int_neon.S @ 2:897f711a7157

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rearrange to work with autoconf
author Nina Engelhardt <nengel@mailbox.tu-berlin.de>
date Tue, 25 Sep 2012 15:55:33 +0200
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1 /*
2 * ARM NEON optimised integer operations
3 * Copyright (c) 2009 Kostya Shishkov
4 *
5 * This file is part of FFmpeg.
6 *
7 * FFmpeg is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU Lesser General Public
9 * License as published by the Free Software Foundation; either
10 * version 2.1 of the License, or (at your option) any later version.
11 *
12 * FFmpeg is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * Lesser General Public License for more details.
16 *
17 * You should have received a copy of the GNU Lesser General Public
18 * License along with FFmpeg; if not, write to the Free Software
19 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
20 */
21
22 #include "asm.S"
23
24 preserve8
25 .fpu neon
26 .text
27
28 function ff_scalarproduct_int16_neon, export=1
29 vmov.i16 q0, #0
30 vmov.i16 q1, #0
31 vmov.i16 q2, #0
32 vmov.i16 q3, #0
33 negs r3, r3
34 beq 2f
35
36 vdup.s32 q12, r3
37 1: vld1.16 {d16-d17}, [r0]!
38 vld1.16 {d20-d21}, [r1,:128]!
39 vmull.s16 q12, d16, d20
40 vld1.16 {d18-d19}, [r0]!
41 vmull.s16 q13, d17, d21
42 vld1.16 {d22-d23}, [r1,:128]!
43 vmull.s16 q14, d18, d22
44 vmull.s16 q15, d19, d23
45 vshl.s32 q8, q12, q12
46 vshl.s32 q9, q13, q12
47 vadd.s32 q0, q0, q8
48 vshl.s32 q10, q14, q12
49 vadd.s32 q1, q1, q9
50 vshl.s32 q11, q15, q12
51 vadd.s32 q2, q2, q10
52 vadd.s32 q3, q3, q11
53 subs r2, r2, #16
54 bne 1b
55 b 3f
56
57 2: vld1.16 {d16-d17}, [r0]!
58 vld1.16 {d20-d21}, [r1,:128]!
59 vmlal.s16 q0, d16, d20
60 vld1.16 {d18-d19}, [r0]!
61 vmlal.s16 q1, d17, d21
62 vld1.16 {d22-d23}, [r1,:128]!
63 vmlal.s16 q2, d18, d22
64 vmlal.s16 q3, d19, d23
65 subs r2, r2, #16
66 bne 2b
67
68 3: vpadd.s32 d16, d0, d1
69 vpadd.s32 d17, d2, d3
70 vpadd.s32 d10, d4, d5
71 vpadd.s32 d11, d6, d7
72 vpadd.s32 d0, d16, d17
73 vpadd.s32 d1, d10, d11
74 vpadd.s32 d2, d0, d1
75 vpaddl.s32 d3, d2
76 vmov.32 r0, d3[0]
77 bx lr
78 endfunc
79
80 @ scalarproduct_and_madd_int16(/*aligned*/v0,v1,v2,order,mul)
81 function ff_scalarproduct_and_madd_int16_neon, export=1
82 vld1.16 {d28[],d29[]}, [sp]
83 vmov.i16 q0, #0
84 vmov.i16 q1, #0
85 vmov.i16 q2, #0
86 vmov.i16 q3, #0
87 mov r12, r0
88
89 1: vld1.16 {d16-d17}, [r0,:128]!
90 vld1.16 {d18-d19}, [r1]!
91 vld1.16 {d20-d21}, [r2]!
92 vld1.16 {d22-d23}, [r0,:128]!
93 vld1.16 {d24-d25}, [r1]!
94 vld1.16 {d26-d27}, [r2]!
95 vmul.s16 q10, q10, q14
96 vmul.s16 q13, q13, q14
97 vmlal.s16 q0, d16, d18
98 vmlal.s16 q1, d17, d19
99 vadd.s16 q10, q8, q10
100 vadd.s16 q13, q11, q13
101 vmlal.s16 q2, d22, d24
102 vmlal.s16 q3, d23, d25
103 vst1.16 {q10}, [r12,:128]!
104 subs r3, r3, #16
105 vst1.16 {q13}, [r12,:128]!
106 bne 1b
107
108 vpadd.s32 d16, d0, d1
109 vpadd.s32 d17, d2, d3
110 vpadd.s32 d10, d4, d5
111 vpadd.s32 d11, d6, d7
112 vpadd.s32 d0, d16, d17
113 vpadd.s32 d1, d10, d11
114 vpadd.s32 d2, d0, d1
115 vpaddl.s32 d3, d2
116 vmov.32 r0, d3[0]
117 bx lr
118 endfunc