mirror of https://git.ffmpeg.org/ffmpeg.git
78 lines
2.4 KiB
ArmAsm
78 lines
2.4 KiB
ArmAsm
|
/*
|
||
|
|
* 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 "asm.S"
|
||
|
|
|
||
|
|
.fpu neon
|
||
|
|
|
||
|
|
.text
|
||
|
|
|
||
|
|
function ff_h264_idct_add_neon, export=1
|
||
|
|
mov r3, #(1<<5)
|
||
|
|
vmov.i16 d16, #0
|
||
|
|
vmov.16 d16[0], r3
|
||
|
|
vld1.64 {d0-d3}, [r1,:128]
|
||
|
|
vadd.i16 d0, d0, d16
|
||
|
|
|
||
|
|
vswp d1, d2
|
||
|
|
vadd.i16 d4, d0, d1
|
||
|
|
vshr.s16 q8, q1, #1
|
||
|
|
vsub.i16 d5, d0, d1
|
||
|
|
vadd.i16 d6, d2, d17
|
||
|
|
vsub.i16 d7, d16, d3
|
||
|
|
vadd.i16 q0, q2, q3
|
||
|
|
vsub.i16 q1, q2, q3
|
||
|
|
|
||
|
|
vtrn.16 d0, d1
|
||
|
|
vtrn.16 d3, d2
|
||
|
|
vtrn.32 d0, d3
|
||
|
|
vtrn.32 d1, d2
|
||
|
|
|
||
|
|
vadd.i16 d4, d0, d3
|
||
|
|
vld1.32 {d18[0]}, [r0,:32], r2
|
||
|
|
vswp d1, d3
|
||
|
|
vshr.s16 q8, q1, #1
|
||
|
|
vld1.32 {d19[1]}, [r0,:32], r2
|
||
|
|
vsub.i16 d5, d0, d1
|
||
|
|
vld1.32 {d18[1]}, [r0,:32], r2
|
||
|
|
vadd.i16 d6, d16, d3
|
||
|
|
vld1.32 {d19[0]}, [r0,:32], r2
|
||
|
|
vsub.i16 d7, d2, d17
|
||
|
|
sub r0, r0, r2, lsl #2
|
||
|
|
vadd.i16 q0, q2, q3
|
||
|
|
vsub.i16 q1, q2, q3
|
||
|
|
|
||
|
|
vshr.s16 q0, q0, #6
|
||
|
|
vshr.s16 q1, q1, #6
|
||
|
|
|
||
|
|
vaddw.u8 q0, q0, d18
|
||
|
|
vaddw.u8 q1, q1, d19
|
||
|
|
|
||
|
|
vqmovun.s16 d0, q0
|
||
|
|
vqmovun.s16 d1, q1
|
||
|
|
|
||
|
|
vst1.32 {d0[0]}, [r0,:32], r2
|
||
|
|
vst1.32 {d1[1]}, [r0,:32], r2
|
||
|
|
vst1.32 {d0[1]}, [r0,:32], r2
|
||
|
|
vst1.32 {d1[0]}, [r0,:32], r2
|
||
|
|
|
||
|
|
bx lr
|
||
|
|
.endfunc
|