SDL_sysaudio.h
1
2
/*
SDL - Simple DirectMedia Layer
3
Copyright (C) 1997-2012 Sam Lantinga
5
This library is SDL_free software; you can redistribute it and/or
6
modify it under the terms of the GNU Lesser General Public
7
License as published by the Free Software Foundation; either
8
version 2.1 of the License, or (at your option) any later version.
9
10
11
12
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13
Lesser General Public License for more details.
15
16
17
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
18
19
Sam Lantinga
20
slouken@libsdl.org
21
*/
22
#include "SDL_config.h"
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
#ifndef _SDL_sysaudio_h
#define _SDL_sysaudio_h
#include "SDL_mutex.h"
#include "SDL_thread.h"
/* The SDL audio driver */
typedef struct SDL_AudioDevice SDL_AudioDevice;
/* Define the SDL audio driver structure */
#define _THIS SDL_AudioDevice *_this
#ifndef _STATUS
#define _STATUS SDL_status *status
#endif
struct SDL_AudioDevice {
/* * * */
/* The name of this audio driver */
const char *name;
/* * * */
/* The description of this audio driver */
const char *desc;
/* * * */
/* Public driver functions */
int (*OpenAudio)(_THIS, SDL_AudioSpec *spec);
void (*ThreadInit)(_THIS); /* Called by audio thread at start */
void (*WaitAudio)(_THIS);
void (*PlayAudio)(_THIS);
Uint8 *(*GetAudioBuf)(_THIS);
void (*WaitDone)(_THIS);
void (*CloseAudio)(_THIS);
/* * * */
58
59
60
61
/* Lock / Unlock functions added for the Mac port */
void (*LockAudio)(_THIS);
void (*UnlockAudio)(_THIS);
62
63
void (*SetCaption)(_THIS, const char *caption);
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
/* Data common to all devices */
/* The current audio specification (shared with audio thread) */
SDL_AudioSpec spec;
/* An audio conversion block for audio format emulation */
SDL_AudioCVT convert;
/* Current state flags */
int enabled;
int paused;
int opened;
/* Fake audio buffer for when the audio hardware is busy */
Uint8 *fake_stream;
/* A semaphore for locking the mixing buffers */
SDL_mutex *mixer_lock;
/* A thread to feed the audio device */
SDL_Thread *thread;
Uint32 threadid;
/* * * */
/* Data private to this driver */
struct SDL_PrivateAudioData *hidden;
/* * * */
/* The function used to dispose of this structure */
void (*free)(_THIS);
};
#undef _THIS
typedef struct AudioBootStrap {
const char *name;
const char *desc;
int (*available)(void);
SDL_AudioDevice *(*create)(int devindex);
} AudioBootStrap;
105
106
107
#if SDL_AUDIO_DRIVER_SNDIO
extern AudioBootStrap SNDIO_bootstrap;
#endif
108
109
#if SDL_AUDIO_DRIVER_BSD
extern AudioBootStrap BSD_AUDIO_bootstrap;
111
112
113
#if SDL_AUDIO_DRIVER_PULSE
extern AudioBootStrap PULSE_bootstrap;
#endif
114
115
116
#if SDL_AUDIO_DRIVER_ALSA
extern AudioBootStrap ALSA_bootstrap;
#endif
117
#if SDL_AUDIO_DRIVER_OSS
118
119
120
extern AudioBootStrap DSP_bootstrap;
extern AudioBootStrap DMA_bootstrap;
#endif
121
#if SDL_AUDIO_DRIVER_QNXNTO
122
123
extern AudioBootStrap QNXNTOAUDIO_bootstrap;
#endif
124
#if SDL_AUDIO_DRIVER_SUNAUDIO
125
126
extern AudioBootStrap SUNAUDIO_bootstrap;
#endif
127
#if SDL_AUDIO_DRIVER_DMEDIA
128
extern AudioBootStrap DMEDIA_bootstrap;
130
131
#if SDL_AUDIO_DRIVER_ARTS
extern AudioBootStrap ARTS_bootstrap;
132
#endif
133
#if SDL_AUDIO_DRIVER_ESD
134
135
extern AudioBootStrap ESD_bootstrap;
#endif
136
#if SDL_AUDIO_DRIVER_NAS
137
138
extern AudioBootStrap NAS_bootstrap;
#endif
139
#if SDL_AUDIO_DRIVER_DSOUND
140
141
extern AudioBootStrap DSOUND_bootstrap;
#endif
142
#if SDL_AUDIO_DRIVER_WAVEOUT
143
144
extern AudioBootStrap WAVEOUT_bootstrap;
#endif
145
#if SDL_AUDIO_DRIVER_PAUD
146
147
extern AudioBootStrap Paud_bootstrap;
#endif
148
#if SDL_AUDIO_DRIVER_BAUDIO
149
150
extern AudioBootStrap BAUDIO_bootstrap;
#endif
151
#if SDL_AUDIO_DRIVER_COREAUDIO
152
153
extern AudioBootStrap COREAUDIO_bootstrap;
#endif
154
#if SDL_AUDIO_DRIVER_SNDMGR
155
156
extern AudioBootStrap SNDMGR_bootstrap;
#endif
157
#if SDL_AUDIO_DRIVER_MINT
158
159
160
161
162
extern AudioBootStrap MINTAUDIO_GSXB_bootstrap;
extern AudioBootStrap MINTAUDIO_MCSN_bootstrap;
extern AudioBootStrap MINTAUDIO_STFA_bootstrap;
extern AudioBootStrap MINTAUDIO_XBIOS_bootstrap;
extern AudioBootStrap MINTAUDIO_DMA8_bootstrap;
164
#if SDL_AUDIO_DRIVER_DISK
165
166
extern AudioBootStrap DISKAUD_bootstrap;
#endif
167
168
169
#if SDL_AUDIO_DRIVER_DUMMY
extern AudioBootStrap DUMMYAUD_bootstrap;
#endif
170
#if SDL_AUDIO_DRIVER_DC
171
172
extern AudioBootStrap DCAUD_bootstrap;
#endif
173
174
175
#if SDL_AUDIO_DRIVER_NDS
extern AudioBootStrap NDSAUD_bootstrap;
#endif
176
#if SDL_AUDIO_DRIVER_MMEAUDIO
177
178
extern AudioBootStrap MMEAUDIO_bootstrap;
#endif
179
#if SDL_AUDIO_DRIVER_DART
180
181
extern AudioBootStrap DART_bootstrap;
#endif
182
183
184
#if SDL_AUDIO_DRIVER_EPOCAUDIO
extern AudioBootStrap EPOCAudio_bootstrap;
#endif
185
186
187
188
189
/* This is the current audio device */
extern SDL_AudioDevice *current_audio;
#endif /* _SDL_sysaudio_h */