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openal-soft updates

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rextimmy 2018-05-09 20:48:18 +10:00
parent d6f6bc65a5
commit 925d8b27cf
149 changed files with 22293 additions and 16887 deletions
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95
Engine/lib/openal-soft/Alc/hrtf.h
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@ -4,49 +4,86 @@
#include "AL/al.h"
#include "AL/alc.h"
#include "alMain.h"
#include "alstring.h"
#include "atomic.h"
struct Hrtf {
ALuint sampleRate;
ALuint irSize;
ALubyte evCount;
/* The maximum number of virtual speakers used to generate HRTF coefficients
* for decoding B-Format.
*/
#define HRTF_AMBI_MAX_CHANNELS 18
const ALubyte *azCount;
const ALushort *evOffset;
const ALshort *coeffs;
const ALubyte *delays;
const char *filename;
struct Hrtf *next;
};
typedef struct HrtfEntry {
al_string name;
const struct Hrtf *hrtf;
} HrtfEntry;
TYPEDEF_VECTOR(HrtfEntry, vector_HrtfEntry)
#define HRTF_HISTORY_BITS (6)
#define HRTF_HISTORY_LENGTH (1<<HRTF_HISTORY_BITS)
#define HRTF_HISTORY_MASK (HRTF_HISTORY_LENGTH-1)
#define HRIR_BITS (7)
#define HRIR_LENGTH (1<<HRIR_BITS)
#define HRIR_MASK (HRIR_LENGTH-1)
#define HRTFDELAY_BITS (20)
#define HRTFDELAY_FRACONE (1<<HRTFDELAY_BITS)
#define HRTFDELAY_MASK (HRTFDELAY_FRACONE-1)
struct HrtfEntry;
struct Hrtf {
RefCount ref;
ALuint sampleRate;
ALsizei irSize;
ALfloat distance;
ALubyte evCount;
const ALubyte *azCount;
const ALushort *evOffset;
const ALfloat (*coeffs)[2];
const ALubyte (*delays)[2];
};
typedef struct HrtfState {
alignas(16) ALfloat History[HRTF_HISTORY_LENGTH];
alignas(16) ALfloat Values[HRIR_LENGTH][2];
} HrtfState;
typedef struct HrtfParams {
alignas(16) ALfloat Coeffs[HRIR_LENGTH][2];
ALsizei Delay[2];
ALfloat Gain;
} HrtfParams;
typedef struct DirectHrtfState {
/* HRTF filter state for dry buffer content */
ALsizei Offset;
ALsizei IrSize;
struct {
alignas(16) ALfloat Values[HRIR_LENGTH][2];
alignas(16) ALfloat Coeffs[HRIR_LENGTH][2];
} Chan[];
} DirectHrtfState;
struct AngularPoint {
ALfloat Elev;
ALfloat Azim;
};
void FreeHrtfs(void);
vector_HrtfEntry EnumerateHrtf(const_al_string devname);
void FreeHrtfList(vector_HrtfEntry *list);
vector_EnumeratedHrtf EnumerateHrtf(const_al_string devname);
void FreeHrtfList(vector_EnumeratedHrtf *list);
struct Hrtf *GetLoadedHrtf(struct HrtfEntry *entry);
void Hrtf_IncRef(struct Hrtf *hrtf);
void Hrtf_DecRef(struct Hrtf *hrtf);
void GetHrtfCoeffs(const struct Hrtf *Hrtf, ALfloat elevation, ALfloat azimuth, ALfloat spread, ALfloat gain, ALfloat (*coeffs)[2], ALuint *delays);
void GetHrtfCoeffs(const struct Hrtf *Hrtf, ALfloat elevation, ALfloat azimuth, ALfloat spread, ALfloat (*coeffs)[2], ALsizei *delays);
/* Produces HRTF filter coefficients for decoding B-Format. The result will
* have ACN ordering with N3D normalization. NumChannels must currently be 4,
* for first-order. Returns the maximum impulse-response length of the
* generated coefficients.
/**
* Produces HRTF filter coefficients for decoding B-Format, given a set of
* virtual speaker positions and HF/LF matrices for decoding to them. The
* returned coefficients are ordered and scaled according to the matrices.
*/
ALuint BuildBFormatHrtf(const struct Hrtf *Hrtf, ALfloat (*coeffs)[HRIR_LENGTH][2], ALuint NumChannels);
void BuildBFormatHrtf(const struct Hrtf *Hrtf, DirectHrtfState *state, ALsizei NumChannels, const struct AngularPoint *AmbiPoints, const ALfloat (*restrict AmbiMatrix)[MAX_AMBI_COEFFS], ALsizei AmbiCount, const ALfloat *restrict AmbiOrderHFGain);
#endif /* ALC_HRTF_H */