tremor/os.h

   1 #ifndef _OS_H
   2 #define _OS_H
   3 /********************************************************************
   4  *                                                                  *
   5  * THIS FILE IS PART OF THE OggVorbis 'TREMOR' CODEC SOURCE CODE.   *
   6  *                                                                  *
   7  * USE, DISTRIBUTION AND REPRODUCTION OF THIS LIBRARY SOURCE IS     *
   8  * GOVERNED BY A BSD-STYLE SOURCE LICENSE INCLUDED WITH THIS SOURCE *
   9  * IN 'COPYING'. PLEASE READ THESE TERMS BEFORE DISTRIBUTING.       *
  10  *                                                                  *
  11  * THE OggVorbis 'TREMOR' SOURCE CODE IS (C) COPYRIGHT 1994-2002    *
  12  * BY THE Xiph.Org FOUNDATION http://www.xiph.org/                  *
  13  *                                                                  *
  14  ********************************************************************
  15
  16  function: #ifdef jail to whip a few platforms into the UNIX ideal.
  17
  18  ********************************************************************/
  19
  20 #include <math.h>
  21 #include "os_types.h"
  22
  23 #define STIN static inline
  24
  25 #ifndef M_PI
  26 #  define M_PI (3.1415926536f)
  27 #endif
  28
  29 #ifdef _WIN32
  30 #  include <malloc.h>
  31 #  define rint(x)   (floor((x)+0.5f))
  32 #  define NO_FLOAT_MATH_LIB
  33 #  define FAST_HYPOT(a, b) sqrt((a)*(a) + (b)*(b))
  34 #endif
  35
  36 #ifdef HAVE_ALLOCA_H
  37 #  include <alloca.h>
  38 #endif
  39
  40 #ifdef USE_MEMORY_H
  41 #  include <memory.h>
  42 #endif
  43
  44 #ifndef min
  45 #  define min(x,y)  ((x)>(y)?(y):(x))
  46 #endif
  47
  48 #ifndef max
  49 #  define max(x,y)  ((x)<(y)?(y):(x))
  50 #endif
  51
  52 #endif /* _OS_H */