1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
|
#ifndef _AL_FILTER_H_
#define _AL_FILTER_H_
#include "AL/al.h"
#include "alu.h"
#ifdef __cplusplus
extern "C" {
#endif
typedef struct {
ALfloat history[OUTPUTCHANNELS*2];
ALfloat coeff;
} FILTER;
#define AL_FILTER_TYPE 0x8001
#define AL_FILTER_NULL 0x0000
#define AL_FILTER_LOWPASS 0x0001
#define AL_FILTER_HIGHPASS 0x0002
#define AL_FILTER_BANDPASS 0x0003
#define AL_LOWPASS_GAIN 0x0001
#define AL_LOWPASS_GAINHF 0x0002
typedef struct ALfilter_struct
{
// Filter type (AL_FILTER_NULL, ...)
ALenum type;
ALfloat Gain;
ALfloat GainHF;
// Index to itself
ALuint filter;
struct ALfilter_struct *next;
} ALfilter;
ALvoid AL_APIENTRY alGenFilters(ALsizei n, ALuint *filters);
ALvoid AL_APIENTRY alDeleteFilters(ALsizei n, ALuint *filters);
ALboolean AL_APIENTRY alIsFilter(ALuint filter);
ALvoid AL_APIENTRY alFilteri(ALuint filter, ALenum param, ALint iValue);
ALvoid AL_APIENTRY alFilteriv(ALuint filter, ALenum param, ALint *piValues);
ALvoid AL_APIENTRY alFilterf(ALuint filter, ALenum param, ALfloat flValue);
ALvoid AL_APIENTRY alFilterfv(ALuint filter, ALenum param, ALfloat *pflValues);
ALvoid AL_APIENTRY alGetFilteri(ALuint filter, ALenum param, ALint *piValue);
ALvoid AL_APIENTRY alGetFilteriv(ALuint filter, ALenum param, ALint *piValues);
ALvoid AL_APIENTRY alGetFilterf(ALuint filter, ALenum param, ALfloat *pflValue);
ALvoid AL_APIENTRY alGetFilterfv(ALuint filter, ALenum param, ALfloat *pflValues);
ALvoid ReleaseALFilters(ALvoid);
#ifdef __cplusplus
}
#endif
#endif
|
