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- /*
- * ARM NEON optimised audio functions
- * Copyright (c) 2008 Mans Rullgard <mans@mansr.com>
- *
- * This file is part of Libav.
- *
- * Libav 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.
- *
- * Libav 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 Libav; 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, export=1
- VFP vdup.32 q1, d0[1]
- VFP vdup.32 q0, d0[0]
- NOVFP vdup.32 q0, r2
- NOVFP vdup.32 q1, r3
- NOVFP ldr r2, [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, export=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
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