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| /* | |
| * ARM NEON optimised audio functions | |
| * Copyright (c) 2008 Mans Rullgard <[email protected]> | |
| * | |
| * 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 "libavutil/arm/asm.S" | |
| function ff_vector_clipf_neon, =1 | |
| VFP vdup.32 q1, d0[1] | |
| VFP vdup.32 q0, d0[0] | |
| NOVFP vdup.32 q0, r3 | |
| NOVFP vld1.32 {d2[],d3[]}, [sp] | |
| vld1.f32 {q2},[r1,:128]! | |
| vmin.f32 q10, q2, q1 | |
| vld1.f32 {q3},[r1,:128]! | |
| vmin.f32 q11, q3, q1 | |
| 1: vmax.f32 q8, q10, q0 | |
| vmax.f32 q9, q11, q0 | |
| subs r2, r2, #8 | |
| beq 2f | |
| vld1.f32 {q2},[r1,:128]! | |
| vmin.f32 q10, q2, q1 | |
| vld1.f32 {q3},[r1,:128]! | |
| vmin.f32 q11, q3, q1 | |
| vst1.f32 {q8},[r0,:128]! | |
| vst1.f32 {q9},[r0,:128]! | |
| b 1b | |
| 2: vst1.f32 {q8},[r0,:128]! | |
| vst1.f32 {q9},[r0,:128]! | |
| bx lr | |
| endfunc | |
| function ff_vector_clip_int32_neon, =1 | |
| vdup.32 q0, r2 | |
| vdup.32 q1, r3 | |
| ldr r2, [sp] | |
| 1: | |
| vld1.32 {q2-q3}, [r1,:128]! | |
| vmin.s32 q2, q2, q1 | |
| vmin.s32 q3, q3, q1 | |
| vmax.s32 q2, q2, q0 | |
| vmax.s32 q3, q3, q0 | |
| vst1.32 {q2-q3}, [r0,:128]! | |
| subs r2, r2, #8 | |
| bgt 1b | |
| bx lr | |
| endfunc | |