Alc/hrtf.h

   1 #ifndef ALC_HRTF_H
   2 #define ALC_HRTF_H
   3
   4 #include "AL/al.h"
   5 #include "AL/alc.h"
   6
   7 #include "alstring.h"
   8
   9 struct Hrtf;
  10
  11 typedef struct HrtfEntry {
  12     al_string name;
  13
  14     const struct Hrtf *hrtf;
  15 } HrtfEntry;
  16 TYPEDEF_VECTOR(HrtfEntry, vector_HrtfEntry)
  17
  18 #define HRIR_BITS        (7)
  19 #define HRIR_LENGTH      (1<<HRIR_BITS)
  20 #define HRIR_MASK        (HRIR_LENGTH-1)
  21 #define HRTFDELAY_BITS    (20)
  22 #define HRTFDELAY_FRACONE (1<<HRTFDELAY_BITS)
  23 #define HRTFDELAY_MASK    (HRTFDELAY_FRACONE-1)
  24
  25 void FreeHrtfs(void);
  26
  27 vector_HrtfEntry EnumerateHrtf(const_al_string devname);
  28 void FreeHrtfList(vector_HrtfEntry *list);
  29
  30 ALuint GetHrtfSampleRate(const struct Hrtf *Hrtf);
  31 ALuint GetHrtfIrSize(const struct Hrtf *Hrtf);
  32
  33 void GetLerpedHrtfCoeffs(const struct Hrtf *Hrtf, ALfloat elevation, ALfloat azimuth, ALfloat dirfact, ALfloat gain, ALfloat (*coeffs)[2], ALuint *delays);
  34
  35 #endif /* ALC_HRTF_H */