FFmpeg
2.8.15
Main Page
Related Pages
Modules
Namespaces
Data Structures
Files
Examples
File List
Globals
All
Data Structures
Namespaces
Files
Functions
Variables
Typedefs
Enumerations
Enumerator
Macros
Modules
Pages
libavutil
mips
libm_mips.h
Go to the documentation of this file.
1
/*
2
* Copyright (c) 2012
3
* MIPS Technologies, Inc., California.
4
*
5
* Redistribution and use in source and binary forms, with or without
6
* modification, are permitted provided that the following conditions
7
* are met:
8
* 1. Redistributions of source code must retain the above copyright
9
* notice, this list of conditions and the following disclaimer.
10
* 2. Redistributions in binary form must reproduce the above copyright
11
* notice, this list of conditions and the following disclaimer in the
12
* documentation and/or other materials provided with the distribution.
13
* 3. Neither the name of the MIPS Technologies, Inc., nor the names of its
14
* contributors may be used to endorse or promote products derived from
15
* this software without specific prior written permission.
16
*
17
* THIS SOFTWARE IS PROVIDED BY THE MIPS TECHNOLOGIES, INC. ``AS IS'' AND
18
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20
* ARE DISCLAIMED. IN NO EVENT SHALL THE MIPS TECHNOLOGIES, INC. BE LIABLE
21
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
22
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
23
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
24
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
25
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
26
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
27
* SUCH DAMAGE.
28
*
29
* Author: Nedeljko Babic (nbabic@mips.com)
30
*
31
* This file is part of FFmpeg.
32
*
33
* FFmpeg is free software; you can redistribute it and/or
34
* modify it under the terms of the GNU Lesser General Public
35
* License as published by the Free Software Foundation; either
36
* version 2.1 of the License, or (at your option) any later version.
37
*
38
* FFmpeg is distributed in the hope that it will be useful,
39
* but WITHOUT ANY WARRANTY; without even the implied warranty of
40
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
41
* Lesser General Public License for more details.
42
*
43
* You should have received a copy of the GNU Lesser General Public
44
* License along with FFmpeg; if not, write to the Free Software
45
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
46
*/
47
48
/**
49
* @file
50
* MIPS optimization for some libm functions
51
*/
52
53
#ifndef AVUTIL_LIBM_MIPS_H
54
#define AVUTIL_LIBM_MIPS_H
55
56
static
av_always_inline
av_const
long
int
lrintf_mips
(
float
x)
57
{
58
register
int
ret_int;
59
60
__asm__
volatile
(
61
"cvt.w.s %[x], %[x] \n\t"
62
"mfc1 %[ret_int], %[x] \n\t"
63
64
:[x]
"+f"
(x), [ret_int]
"=r"
(ret_int)
65
);
66
return
ret_int;
67
}
68
69
#undef lrintf
70
#define lrintf(x) lrintf_mips(x)
71
72
#define HAVE_LRINTF 1
73
#endif
/* AVUTIL_LIBM_MIPS_H */
av_const
#define av_const
Definition:
attributes.h:68
lrintf_mips
static av_always_inline av_const long int lrintf_mips(float x)
Definition:
libm_mips.h:56
av_always_inline
#define av_always_inline
Definition:
attributes.h:37
Generated on Mon May 27 2019 05:58:52 for FFmpeg by
1.8.8