1 #ifndef _OS_H
2 #define _OS_H
3 /************************************************************************
4  * Copyright (C) 2002-2009, Xiph.org Foundation
5  * Copyright (C) 2010, Robin Watts for Pinknoise Productions Ltd
6  * All rights reserved.
7  *
8  * Redistribution and use in source and binary forms, with or without
9  * modification, are permitted provided that the following conditions
10  * are met:
11  *
12  *     * Redistributions of source code must retain the above copyright
13  * notice, this list of conditions and the following disclaimer.
14  *     * Redistributions in binary form must reproduce the above
15  * copyright notice, this list of conditions and the following disclaimer
16  * in the documentation and/or other materials provided with the
17  * distribution.
18  *     * Neither the names of the Xiph.org Foundation nor Pinknoise
19  * Productions Ltd nor the names of its contributors may be used to
20  * endorse or promote products derived from this software without
21  * specific prior written permission.
22  *
23  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
24  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
25  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
26  * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
27  * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
28  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
29  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
30  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
31  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
32  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
33  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
34  ************************************************************************
35 
36  function: #ifdef jail to whip a few platforms into the UNIX ideal.
37 
38  ************************************************************************/
39 
40 #include <math.h>
41 #include "os_types.h"
42 
43 #ifndef _V_IFDEFJAIL_H_
44 #  define _V_IFDEFJAIL_H_
45 
46 #  ifdef __GNUC__
47 #    define STIN static __inline__
48 #  elif _WIN32
49 #    define STIN static __inline
50 #  endif
51 #else
52 #  define STIN static
53 #endif
54 
55 #ifndef M_PI
56 #  define M_PI (3.1415926536f)
57 #endif
58 
59 #ifdef _WIN32
60 #  include <malloc.h>
61 #  define rint(x)   (floor((x)+0.5f))
62 #  define NO_FLOAT_MATH_LIB
63 #  define FAST_HYPOT(a, b) sqrt((a)*(a) + (b)*(b))
64 #endif
65 
66 #ifdef HAVE_ALLOCA_H
67 #  include <alloca.h>
68 #endif
69 
70 #ifdef USE_MEMORY_H
71 #  include <memory.h>
72 #endif
73 
74 #ifndef min
75 #  define min(x,y)  ((x)>(y)?(y):(x))
76 #endif
77 
78 #ifndef max
79 #  define max(x,y)  ((x)<(y)?(y):(x))
80 #endif
81 
82 #endif /* _OS_H */
83