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
161
162
163
164
165
|
#include "config.h"
#include <stdlib.h>
#include "AL/al.h"
#include "AL/alc.h"
#include "alMain.h"
#include "alAuxEffectSlot.h"
#include "alError.h"
typedef struct ALnullState {
DERIVE_FROM_TYPE(ALeffectState);
} ALnullState;
/* This destructs (not free!) the effect state. It's called only when the
* effect slot is no longer used.
*/
static ALvoid ALnullState_Destruct(ALnullState* UNUSED(state))
{
}
/* This updates the device-dependant effect state. This is called on
* initialization and any time the device parameters (eg. playback frequency,
* format) have been changed.
*/
static ALboolean ALnullState_deviceUpdate(ALnullState* UNUSED(state), ALCdevice* UNUSED(device))
{
return AL_TRUE;
}
/* This updates the effect state. This is called any time the effect is
* (re)loaded into a slot.
*/
static ALvoid ALnullState_update(ALnullState* UNUSED(state), ALCdevice* UNUSED(device), const ALeffectslot* UNUSED(slot))
{
}
/* This processes the effect state, for the given number of samples from the
* input to the output buffer. The result should be added to the output buffer,
* not replace it.
*/
static ALvoid ALnullState_process(ALnullState* UNUSED(state), ALuint UNUSED(samplesToDo), const ALfloat *restrict UNUSED(samplesIn), ALfloat (*restrict samplesOut)[BUFFERSIZE])
{
/* NOTE: Couldn't use the UNUSED macro on samplesOut due to the way GCC's
* __attribute__ declaration interacts with the parenthesis. */
(void)samplesOut;
}
/* This allocates memory to store the object, before it gets constructed.
* DECLARE_DEFAULT_ALLOCATORS can be used to declate a default method.
*/
static void *ALnullState_New(size_t size)
{
return malloc(size);
}
/* This frees the memory used by the object, after it has been destructed.
* DECLARE_DEFAULT_ALLOCATORS can be used to declate a default method.
*/
static void ALnullState_Delete(void *ptr)
{
free(ptr);
}
/* Define the forwards and the ALeffectState vtable for this type. */
DEFINE_ALEFFECTSTATE_VTABLE(ALnullState);
typedef struct ALnullStateFactory {
DERIVE_FROM_TYPE(ALeffectStateFactory);
} ALnullStateFactory;
/* Creates ALeffectState objects of the appropriate type. */
ALeffectState *ALnullStateFactory_create(ALnullStateFactory *UNUSED(factory))
{
ALnullState *state;
state = ALnullState_New(sizeof(*state));
if(!state) return NULL;
/* Set vtables for inherited types. */
SET_VTABLE2(ALnullState, ALeffectState, state);
return STATIC_CAST(ALeffectState, state);
}
/* Define the ALeffectStateFactory vtable for this type. */
DEFINE_ALEFFECTSTATEFACTORY_VTABLE(ALnullStateFactory);
ALeffectStateFactory *ALnullStateFactory_getFactory(void)
{
static ALnullStateFactory NullFactory = { { GET_VTABLE2(ALnullStateFactory, ALeffectStateFactory) } };
return STATIC_CAST(ALeffectStateFactory, &NullFactory);
}
void ALnull_setParami(ALeffect* UNUSED(effect), ALCcontext *context, ALenum param, ALint UNUSED(val))
{
switch(param)
{
default:
SET_ERROR_AND_RETURN(context, AL_INVALID_ENUM);
}
}
void ALnull_setParamiv(ALeffect* UNUSED(effect), ALCcontext *context, ALenum param, const ALint* UNUSED(vals))
{
switch(param)
{
default:
SET_ERROR_AND_RETURN(context, AL_INVALID_ENUM);
}
}
void ALnull_setParamf(ALeffect* UNUSED(effect), ALCcontext *context, ALenum param, ALfloat UNUSED(val))
{
switch(param)
{
default:
SET_ERROR_AND_RETURN(context, AL_INVALID_ENUM);
}
}
void ALnull_setParamfv(ALeffect* UNUSED(effect), ALCcontext *context, ALenum param, const ALfloat* UNUSED(vals))
{
switch(param)
{
default:
SET_ERROR_AND_RETURN(context, AL_INVALID_ENUM);
}
}
void ALnull_getParami(const ALeffect* UNUSED(effect), ALCcontext *context, ALenum param, ALint* UNUSED(val))
{
switch(param)
{
default:
SET_ERROR_AND_RETURN(context, AL_INVALID_ENUM);
}
}
void ALnull_getParamiv(const ALeffect* UNUSED(effect), ALCcontext *context, ALenum param, ALint* UNUSED(vals))
{
switch(param)
{
default:
SET_ERROR_AND_RETURN(context, AL_INVALID_ENUM);
}
}
void ALnull_getParamf(const ALeffect* UNUSED(effect), ALCcontext *context, ALenum param, ALfloat* UNUSED(val))
{
switch(param)
{
default:
SET_ERROR_AND_RETURN(context, AL_INVALID_ENUM);
}
}
void ALnull_getParamfv(const ALeffect* UNUSED(effect), ALCcontext *context, ALenum param, ALfloat* UNUSED(vals))
{
switch(param)
{
default:
SET_ERROR_AND_RETURN(context, AL_INVALID_ENUM);
}
}
DEFINE_ALEFFECT_VTABLE(ALnull);
|
