mirror of
https://github.com/FFmpeg/FFmpeg.git
synced 2024-12-28 20:53:54 +02:00
62 lines
2.2 KiB
ArmAsm
62 lines
2.2 KiB
ArmAsm
/*
|
|
* Copyright (c) 2010 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 "asm.S"
|
|
|
|
function ff_dca_lfe_fir_neon, export=1
|
|
push {r4-r6,lr}
|
|
|
|
add r4, r0, r3, lsl #2 @ out2
|
|
add r5, r2, #256*4-16 @ cf1
|
|
sub r1, r1, #12
|
|
cmp r3, #32
|
|
moveq r6, #256/32
|
|
movne r6, #256/64
|
|
NOVFP vldr d0, [sp, #16] @ scale, bias
|
|
mov lr, #-16
|
|
1:
|
|
vmov.f32 q2, #0.0 @ v0
|
|
vmov.f32 q3, #0.0 @ v1
|
|
mov r12, r6
|
|
2:
|
|
vld1.32 {q8}, [r2,:128]! @ cf0
|
|
vld1.32 {q9}, [r5,:128], lr @ cf1
|
|
vld1.32 {q1}, [r1], lr @ in
|
|
subs r12, r12, #4
|
|
vrev64.32 q10, q8
|
|
vmla.f32 q3, q1, q9
|
|
vmla.f32 d4, d2, d21
|
|
vmla.f32 d5, d3, d20
|
|
bne 2b
|
|
|
|
add r1, r1, r6, lsl #2
|
|
subs r3, r3, #1
|
|
vadd.f32 d4, d4, d5
|
|
vadd.f32 d6, d6, d7
|
|
vpadd.f32 d4, d4, d6
|
|
vdup.32 d5, d0[1]
|
|
vmla.f32 d5, d4, d0[0]
|
|
vst1.32 {d5[0]}, [r0,:32]!
|
|
vst1.32 {d5[1]}, [r4,:32]!
|
|
bne 1b
|
|
|
|
pop {r4-r6,pc}
|
|
endfunc
|