mirror of https://github.com/FFmpeg/FFmpeg.git
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
83 lines
3.0 KiB
83 lines
3.0 KiB
/* |
|
* ARM NEON optimised DSP functions |
|
* 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 "libavutil/arm/asm.S" |
|
|
|
function ff_vorbis_inverse_coupling_neon, export=1 |
|
vmov.i32 q10, #1<<31 |
|
subs r2, r2, #4 |
|
mov r3, r0 |
|
mov r12, r1 |
|
beq 3f |
|
|
|
vld1.32 {d24-d25},[r1,:128]! |
|
vld1.32 {d22-d23},[r0,:128]! |
|
vcle.s32 q8, q12, #0 |
|
vand q9, q11, q10 |
|
veor q12, q12, q9 |
|
vand q2, q12, q8 |
|
vbic q3, q12, q8 |
|
vadd.f32 q12, q11, q2 |
|
vsub.f32 q11, q11, q3 |
|
1: vld1.32 {d2-d3}, [r1,:128]! |
|
vld1.32 {d0-d1}, [r0,:128]! |
|
vcle.s32 q8, q1, #0 |
|
vand q9, q0, q10 |
|
veor q1, q1, q9 |
|
vst1.32 {d24-d25},[r3, :128]! |
|
vst1.32 {d22-d23},[r12,:128]! |
|
vand q2, q1, q8 |
|
vbic q3, q1, q8 |
|
vadd.f32 q1, q0, q2 |
|
vsub.f32 q0, q0, q3 |
|
subs r2, r2, #8 |
|
ble 2f |
|
vld1.32 {d24-d25},[r1,:128]! |
|
vld1.32 {d22-d23},[r0,:128]! |
|
vcle.s32 q8, q12, #0 |
|
vand q9, q11, q10 |
|
veor q12, q12, q9 |
|
vst1.32 {d2-d3}, [r3, :128]! |
|
vst1.32 {d0-d1}, [r12,:128]! |
|
vand q2, q12, q8 |
|
vbic q3, q12, q8 |
|
vadd.f32 q12, q11, q2 |
|
vsub.f32 q11, q11, q3 |
|
b 1b |
|
|
|
2: vst1.32 {d2-d3}, [r3, :128]! |
|
vst1.32 {d0-d1}, [r12,:128]! |
|
it lt |
|
bxlt lr |
|
|
|
3: vld1.32 {d2-d3}, [r1,:128] |
|
vld1.32 {d0-d1}, [r0,:128] |
|
vcle.s32 q8, q1, #0 |
|
vand q9, q0, q10 |
|
veor q1, q1, q9 |
|
vand q2, q1, q8 |
|
vbic q3, q1, q8 |
|
vadd.f32 q1, q0, q2 |
|
vsub.f32 q0, q0, q3 |
|
vst1.32 {d2-d3}, [r0,:128]! |
|
vst1.32 {d0-d1}, [r1,:128]! |
|
bx lr |
|
endfunc
|
|
|