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
24function ff_vector_clipf_neon, export=1
25VFP     vdup.32         q1,  d0[1]
26VFP     vdup.32         q0,  d0[0]
27NOVFP   vdup.32         q0,  r2
28NOVFP   vdup.32         q1,  r3
29NOVFP   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
341:      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
452:      vst1.f32        {q8},[r0,:128]!
46        vst1.f32        {q9},[r0,:128]!
47        bx              lr
48endfunc
49
50function ff_vector_clip_int32_neon, export=1
51        vdup.32         q0,  r2
52        vdup.32         q1,  r3
53        ldr             r2,  [sp]
541:
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
64endfunc
65