Mercurial > cgi-bin > hgwebdir.cgi > PR > Applications > VSs > VSs__H264__App

comparison libavcodec/arm/dcadsp_neon.S @ 7:c8259123d224

find changesets by author, revision, files, or words in the commit message
hide animating VP and entry point
author Nina Engelhardt <nengel@mailbox.tu-berlin.de>
date Wed, 15 May 2013 15:26:14 +0200
parents
children
comparison
equal deleted inserted replaced
-1:000000000000 0:823549a4ccf0
1 /*
2 * Copyright (c) 2010 Mans Rullgard <mans@mansr.com>
3 *
4 * This file is part of FFmpeg.
5 *
6 * FFmpeg is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU Lesser General Public
8 * License as published by the Free Software Foundation; either
9 * version 2.1 of the License, or (at your option) any later version.
10 *
11 * FFmpeg is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 * Lesser General Public License for more details.
15 *
16 * You should have received a copy of the GNU Lesser General Public
17 * License along with FFmpeg; if not, write to the Free Software
18 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
19 */
20
21 #include "asm.S"
22
23 function ff_dca_lfe_fir_neon, export=1
24 push {r4-r6,lr}
25
26 add r4, r0, r3, lsl #2 @ out2
27 add r5, r2, #256*4-16 @ cf1
28 sub r1, r1, #12
29 cmp r3, #32
30 moveq r6, #256/32
31 movne r6, #256/64
32 NOVFP vldr d0, [sp, #16] @ scale, bias
33 mov lr, #-16
34 1:
35 vmov.f32 q2, #0.0 @ v0
36 vmov.f32 q3, #0.0 @ v1
37 mov r12, r6
38 2:
39 vld1.32 {q8}, [r2,:128]! @ cf0
40 vld1.32 {q9}, [r5,:128], lr @ cf1
41 vld1.32 {q1}, [r1], lr @ in
42 subs r12, r12, #4
43 vrev64.32 q10, q8
44 vmla.f32 q3, q1, q9
45 vmla.f32 d4, d2, d21
46 vmla.f32 d5, d3, d20
47 bne 2b
48
49 add r1, r1, r6, lsl #2
50 subs r3, r3, #1
51 vadd.f32 d4, d4, d5
52 vadd.f32 d6, d6, d7
53 vpadd.f32 d4, d4, d6
54 vdup.32 d5, d0[1]
55 vmla.f32 d5, d4, d0[0]
56 vst1.32 {d5[0]}, [r0,:32]!
57 vst1.32 {d5[1]}, [r4,:32]!
58 bne 1b
59
60 pop {r4-r6,pc}
61 endfunc