OpenAL32/Include/alu.h

   1 #ifndef _ALU_H_
   2 #define _ALU_H_
   3
   4 #include "AL/al.h"
   5 #include "AL/alc.h"
   6
   7 #ifdef HAVE_FLOAT_H
   8 #include <float.h>
   9 #endif
  10
  11 #ifndef M_PI
  12 #define M_PI           3.14159265358979323846  /* pi */
  13 #define M_PI_2         1.57079632679489661923  /* pi/2 */
  14 #endif
  15
  16 #ifdef HAVE_SQRTF
  17 #define aluSqrt(x) ((ALfloat)sqrtf((float)(x)))
  18 #else
  19 #define aluSqrt(x) ((ALfloat)sqrt((double)(x)))
  20 #endif
  21
  22 #ifdef HAVE_ACOSF
  23 #define aluAcos(x) ((ALfloat)acosf((float)(x)))
  24 #else
  25 #define aluAcos(x) ((ALfloat)acos((double)(x)))
  26 #endif
  27
  28 #ifdef HAVE_ATANF
  29 #define aluAtan(x) ((ALfloat)atanf((float)(x)))
  30 #else
  31 #define aluAtan(x) ((ALfloat)atan((double)(x)))
  32 #endif
  33
  34 #ifdef HAVE_FABSF
  35 #define aluFabs(x) ((ALfloat)fabsf((float)(x)))
  36 #else
  37 #define aluFabs(x) ((ALfloat)fabs((double)(x)))
  38 #endif
  39
  40 // fixes for mingw32.
  41 #if defined(max) && !defined(__max)
  42 #define __max max
  43 #endif
  44 #if defined(min) && !defined(__min)
  45 #define __min min
  46 #endif
  47
  48 #ifdef __cplusplus
  49 extern "C" {
  50 #endif
  51
  52 enum {
  53     FRONT_LEFT = 0,
  54     FRONT_RIGHT,
  55     FRONT_CENTER,
  56     SIDE_LEFT,
  57     SIDE_RIGHT,
  58     BACK_LEFT,
  59     BACK_RIGHT,
  60     BACK_CENTER,
  61     LFE,
  62
  63     OUTPUTCHANNELS
  64 };
  65
  66 #define BUFFERSIZE 24000
  67
  68 extern ALboolean DuplicateStereo;
  69
  70 __inline ALuint aluBytesFromFormat(ALenum format);
  71 __inline ALuint aluChannelsFromFormat(ALenum format);
  72 ALvoid aluInitPanning(ALCcontext *Context);
  73 ALvoid aluMixData(ALCcontext *context,ALvoid *buffer,ALsizei size,ALenum format);
  74
  75 #ifdef __cplusplus
  76 }
  77 #endif
  78
  79 #endif
  80