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2ba45a60 DM |
1 | /* |
2 | * ARM NEON optimised audio functions | |
3 | * Copyright (c) 2008 Mans Rullgard <mans@mansr.com> | |
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 "libavutil/arm/asm.S" | |
23 | ||
24 | function ff_vector_clipf_neon, export=1 | |
25 | VFP vdup.32 q1, d0[1] | |
26 | VFP vdup.32 q0, d0[0] | |
27 | NOVFP vdup.32 q0, r2 | |
28 | NOVFP vdup.32 q1, r3 | |
29 | NOVFP ldr r2, [sp] | |
30 | vld1.f32 {q2},[r1,:128]! | |
31 | vmin.f32 q10, q2, q1 | |
32 | vld1.f32 {q3},[r1,:128]! | |
33 | vmin.f32 q11, q3, q1 | |
34 | 1: vmax.f32 q8, q10, q0 | |
35 | vmax.f32 q9, q11, q0 | |
36 | subs r2, r2, #8 | |
37 | beq 2f | |
38 | vld1.f32 {q2},[r1,:128]! | |
39 | vmin.f32 q10, q2, q1 | |
40 | vld1.f32 {q3},[r1,:128]! | |
41 | vmin.f32 q11, q3, q1 | |
42 | vst1.f32 {q8},[r0,:128]! | |
43 | vst1.f32 {q9},[r0,:128]! | |
44 | b 1b | |
45 | 2: vst1.f32 {q8},[r0,:128]! | |
46 | vst1.f32 {q9},[r0,:128]! | |
47 | bx lr | |
48 | endfunc | |
49 | ||
50 | function ff_vector_clip_int32_neon, export=1 | |
51 | vdup.32 q0, r2 | |
52 | vdup.32 q1, r3 | |
53 | ldr r2, [sp] | |
54 | 1: | |
55 | vld1.32 {q2-q3}, [r1,:128]! | |
56 | vmin.s32 q2, q2, q1 | |
57 | vmin.s32 q3, q3, q1 | |
58 | vmax.s32 q2, q2, q0 | |
59 | vmax.s32 q3, q3, q0 | |
60 | vst1.32 {q2-q3}, [r0,:128]! | |
61 | subs r2, r2, #8 | |
62 | bgt 1b | |
63 | bx lr | |
64 | endfunc |