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
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
|
#ifndef AL_BACKENDS_BASE_H
#define AL_BACKENDS_BASE_H
#include "alMain.h"
#include "threads.h"
typedef struct ClockLatency {
ALint64 ClockTime;
ALint64 Latency;
} ClockLatency;
/* Helper to get the current clock time from the device's ClockBase, and
* SamplesDone converted from the sample rate.
*/
inline ALuint64 GetDeviceClockTime(ALCdevice *device)
{
return device->ClockBase + (device->SamplesDone * DEVICE_CLOCK_RES /
device->Frequency);
}
struct ALCbackendVtable;
typedef struct ALCbackend {
const struct ALCbackendVtable *vtbl;
ALCdevice *mDevice;
almtx_t mMutex;
} ALCbackend;
void ALCbackend_Construct(ALCbackend *self, ALCdevice *device);
void ALCbackend_Destruct(ALCbackend *self);
ALCboolean ALCbackend_reset(ALCbackend *self);
ALCenum ALCbackend_captureSamples(ALCbackend *self, void *buffer, ALCuint samples);
ALCuint ALCbackend_availableSamples(ALCbackend *self);
ClockLatency ALCbackend_getClockLatency(ALCbackend *self);
void ALCbackend_lock(ALCbackend *self);
void ALCbackend_unlock(ALCbackend *self);
struct ALCbackendVtable {
void (*const Destruct)(ALCbackend*);
ALCenum (*const open)(ALCbackend*, const ALCchar*);
ALCboolean (*const reset)(ALCbackend*);
ALCboolean (*const start)(ALCbackend*);
void (*const stop)(ALCbackend*);
ALCenum (*const captureSamples)(ALCbackend*, void*, ALCuint);
ALCuint (*const availableSamples)(ALCbackend*);
ClockLatency (*const getClockLatency)(ALCbackend*);
void (*const lock)(ALCbackend*);
void (*const unlock)(ALCbackend*);
void (*const Delete)(void*);
};
#define DEFINE_ALCBACKEND_VTABLE(T) \
DECLARE_THUNK(T, ALCbackend, void, Destruct) \
DECLARE_THUNK1(T, ALCbackend, ALCenum, open, const ALCchar*) \
DECLARE_THUNK(T, ALCbackend, ALCboolean, reset) \
DECLARE_THUNK(T, ALCbackend, ALCboolean, start) \
DECLARE_THUNK(T, ALCbackend, void, stop) \
DECLARE_THUNK2(T, ALCbackend, ALCenum, captureSamples, void*, ALCuint) \
DECLARE_THUNK(T, ALCbackend, ALCuint, availableSamples) \
DECLARE_THUNK(T, ALCbackend, ClockLatency, getClockLatency) \
DECLARE_THUNK(T, ALCbackend, void, lock) \
DECLARE_THUNK(T, ALCbackend, void, unlock) \
static void T##_ALCbackend_Delete(void *ptr) \
{ T##_Delete(STATIC_UPCAST(T, ALCbackend, (ALCbackend*)ptr)); } \
\
static const struct ALCbackendVtable T##_ALCbackend_vtable = { \
T##_ALCbackend_Destruct, \
\
T##_ALCbackend_open, \
T##_ALCbackend_reset, \
T##_ALCbackend_start, \
T##_ALCbackend_stop, \
T##_ALCbackend_captureSamples, \
T##_ALCbackend_availableSamples, \
T##_ALCbackend_getClockLatency, \
T##_ALCbackend_lock, \
T##_ALCbackend_unlock, \
\
T##_ALCbackend_Delete, \
}
typedef enum ALCbackend_Type {
ALCbackend_Playback,
ALCbackend_Capture,
ALCbackend_Loopback
} ALCbackend_Type;
struct ALCbackendFactoryVtable;
typedef struct ALCbackendFactory {
const struct ALCbackendFactoryVtable *vtbl;
} ALCbackendFactory;
void ALCbackendFactory_deinit(ALCbackendFactory *self);
struct ALCbackendFactoryVtable {
ALCboolean (*const init)(ALCbackendFactory *self);
void (*const deinit)(ALCbackendFactory *self);
ALCboolean (*const querySupport)(ALCbackendFactory *self, ALCbackend_Type type);
void (*const probe)(ALCbackendFactory *self, enum DevProbe type);
ALCbackend* (*const createBackend)(ALCbackendFactory *self, ALCdevice *device, ALCbackend_Type type);
};
#define DEFINE_ALCBACKENDFACTORY_VTABLE(T) \
DECLARE_THUNK(T, ALCbackendFactory, ALCboolean, init) \
DECLARE_THUNK(T, ALCbackendFactory, void, deinit) \
DECLARE_THUNK1(T, ALCbackendFactory, ALCboolean, querySupport, ALCbackend_Type) \
DECLARE_THUNK1(T, ALCbackendFactory, void, probe, enum DevProbe) \
DECLARE_THUNK2(T, ALCbackendFactory, ALCbackend*, createBackend, ALCdevice*, ALCbackend_Type) \
\
static const struct ALCbackendFactoryVtable T##_ALCbackendFactory_vtable = { \
T##_ALCbackendFactory_init, \
T##_ALCbackendFactory_deinit, \
T##_ALCbackendFactory_querySupport, \
T##_ALCbackendFactory_probe, \
T##_ALCbackendFactory_createBackend, \
}
ALCbackendFactory *ALCpulseBackendFactory_getFactory(void);
ALCbackendFactory *ALCalsaBackendFactory_getFactory(void);
ALCbackendFactory *ALCcoreAudioBackendFactory_getFactory(void);
ALCbackendFactory *ALCossBackendFactory_getFactory(void);
ALCbackendFactory *ALCjackBackendFactory_getFactory(void);
ALCbackendFactory *ALCsolarisBackendFactory_getFactory(void);
ALCbackendFactory *ALCsndioBackendFactory_getFactory(void);
ALCbackendFactory *ALCqsaBackendFactory_getFactory(void);
ALCbackendFactory *ALCmmdevBackendFactory_getFactory(void);
ALCbackendFactory *ALCdsoundBackendFactory_getFactory(void);
ALCbackendFactory *ALCwinmmBackendFactory_getFactory(void);
ALCbackendFactory *ALCportBackendFactory_getFactory(void);
ALCbackendFactory *ALCopenslBackendFactory_getFactory(void);
ALCbackendFactory *ALCnullBackendFactory_getFactory(void);
ALCbackendFactory *ALCwaveBackendFactory_getFactory(void);
ALCbackendFactory *ALCsdl2BackendFactory_getFactory(void);
ALCbackendFactory *ALCloopbackFactory_getFactory(void);
inline void ALCdevice_Lock(ALCdevice *device)
{ V0(device->Backend,lock)(); }
inline void ALCdevice_Unlock(ALCdevice *device)
{ V0(device->Backend,unlock)(); }
#endif /* AL_BACKENDS_BASE_H */
|