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.
84 lines
3.0 KiB
84 lines
3.0 KiB
12 years ago
|
/*
|
||
|
|
* ARM NEON optimised DSP 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_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
|