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, r3 28NOVFP vld1.32 {d2[],d3[]}, [sp] 29 vld1.f32 {q2},[r1,:128]! 30 vmin.f32 q10, q2, q1 31 vld1.f32 {q3},[r1,:128]! 32 vmin.f32 q11, q3, q1 331: vmax.f32 q8, q10, q0 34 vmax.f32 q9, q11, q0 35 subs r2, r2, #8 36 beq 2f 37 vld1.f32 {q2},[r1,:128]! 38 vmin.f32 q10, q2, q1 39 vld1.f32 {q3},[r1,:128]! 40 vmin.f32 q11, q3, q1 41 vst1.f32 {q8},[r0,:128]! 42 vst1.f32 {q9},[r0,:128]! 43 b 1b 442: vst1.f32 {q8},[r0,:128]! 45 vst1.f32 {q9},[r0,:128]! 46 bx lr 47endfunc 48 49function ff_vector_clip_int32_neon, export=1 50 vdup.32 q0, r2 51 vdup.32 q1, r3 52 ldr r2, [sp] 531: 54 vld1.32 {q2-q3}, [r1,:128]! 55 vmin.s32 q2, q2, q1 56 vmin.s32 q3, q3, q1 57 vmax.s32 q2, q2, q0 58 vmax.s32 q3, q3, q0 59 vst1.32 {q2-q3}, [r0,:128]! 60 subs r2, r2, #8 61 bgt 1b 62 bx lr 63endfunc 64