| /* |
| * ARM NEON optimised Format Conversion Utils |
| * Copyright (c) 2008 Mans Rullgard <mans@mansr.com> |
| * |
| * 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 "config.h" |
| #include "libavutil/arm/asm.S" |
| |
| function ff_int32_to_float_fmul_scalar_neon, export=1 |
| VFP vdup.32 q0, d0[0] |
| VFP len .req r2 |
| NOVFP vdup.32 q0, r2 |
| NOVFP len .req r3 |
| |
| vld1.32 {q1},[r1,:128]! |
| vcvt.f32.s32 q3, q1 |
| vld1.32 {q2},[r1,:128]! |
| vcvt.f32.s32 q8, q2 |
| 1: subs len, len, #8 |
| pld [r1, #16] |
| vmul.f32 q9, q3, q0 |
| vmul.f32 q10, q8, q0 |
| beq 2f |
| vld1.32 {q1},[r1,:128]! |
| vcvt.f32.s32 q3, q1 |
| vld1.32 {q2},[r1,:128]! |
| vcvt.f32.s32 q8, q2 |
| vst1.32 {q9}, [r0,:128]! |
| vst1.32 {q10},[r0,:128]! |
| b 1b |
| 2: vst1.32 {q9}, [r0,:128]! |
| vst1.32 {q10},[r0,:128]! |
| bx lr |
| .unreq len |
| endfunc |
