root / audio / audio_int.h @ 43057ab1
History | View | Annotate | Download (6.6 kB)
1 |
/*
|
---|---|
2 |
* QEMU Audio subsystem header
|
3 |
*
|
4 |
* Copyright (c) 2003-2005 Vassili Karpov (malc)
|
5 |
*
|
6 |
* Permission is hereby granted, free of charge, to any person obtaining a copy
|
7 |
* of this software and associated documentation files (the "Software"), to deal
|
8 |
* in the Software without restriction, including without limitation the rights
|
9 |
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
|
10 |
* copies of the Software, and to permit persons to whom the Software is
|
11 |
* furnished to do so, subject to the following conditions:
|
12 |
*
|
13 |
* The above copyright notice and this permission notice shall be included in
|
14 |
* all copies or substantial portions of the Software.
|
15 |
*
|
16 |
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
17 |
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
18 |
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
|
19 |
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
20 |
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
|
21 |
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
|
22 |
* THE SOFTWARE.
|
23 |
*/
|
24 |
#ifndef QEMU_AUDIO_INT_H
|
25 |
#define QEMU_AUDIO_INT_H
|
26 |
|
27 |
#ifdef CONFIG_COREAUDIO
|
28 |
#define FLOAT_MIXENG
|
29 |
/* #define RECIPROCAL */
|
30 |
#endif
|
31 |
#include "mixeng.h" |
32 |
|
33 |
struct audio_pcm_ops;
|
34 |
|
35 |
typedef enum { |
36 |
AUD_OPT_INT, |
37 |
AUD_OPT_FMT, |
38 |
AUD_OPT_STR, |
39 |
AUD_OPT_BOOL |
40 |
} audio_option_tag_e; |
41 |
|
42 |
struct audio_option {
|
43 |
const char *name; |
44 |
audio_option_tag_e tag; |
45 |
void *valp;
|
46 |
const char *descr; |
47 |
int *overridenp;
|
48 |
int overriden;
|
49 |
}; |
50 |
|
51 |
struct audio_callback {
|
52 |
void *opaque;
|
53 |
audio_callback_fn_t fn; |
54 |
}; |
55 |
|
56 |
struct audio_pcm_info {
|
57 |
int bits;
|
58 |
int sign;
|
59 |
int freq;
|
60 |
int nchannels;
|
61 |
int align;
|
62 |
int shift;
|
63 |
int bytes_per_second;
|
64 |
int swap_endian;
|
65 |
}; |
66 |
|
67 |
typedef struct HWVoiceOut { |
68 |
int enabled;
|
69 |
int pending_disable;
|
70 |
int valid;
|
71 |
struct audio_pcm_info info;
|
72 |
|
73 |
f_sample *clip; |
74 |
|
75 |
int rpos;
|
76 |
uint64_t ts_helper; |
77 |
|
78 |
st_sample_t *mix_buf; |
79 |
|
80 |
int samples;
|
81 |
LIST_HEAD (sw_out_listhead, SWVoiceOut) sw_head; |
82 |
struct audio_pcm_ops *pcm_ops;
|
83 |
LIST_ENTRY (HWVoiceOut) entries; |
84 |
} HWVoiceOut; |
85 |
|
86 |
typedef struct HWVoiceIn { |
87 |
int enabled;
|
88 |
struct audio_pcm_info info;
|
89 |
|
90 |
t_sample *conv; |
91 |
|
92 |
int wpos;
|
93 |
int total_samples_captured;
|
94 |
uint64_t ts_helper; |
95 |
|
96 |
st_sample_t *conv_buf; |
97 |
|
98 |
int samples;
|
99 |
LIST_HEAD (sw_in_listhead, SWVoiceIn) sw_head; |
100 |
struct audio_pcm_ops *pcm_ops;
|
101 |
LIST_ENTRY (HWVoiceIn) entries; |
102 |
} HWVoiceIn; |
103 |
|
104 |
struct SWVoiceOut {
|
105 |
struct audio_pcm_info info;
|
106 |
t_sample *conv; |
107 |
int64_t ratio; |
108 |
st_sample_t *buf; |
109 |
void *rate;
|
110 |
int total_hw_samples_mixed;
|
111 |
int active;
|
112 |
int empty;
|
113 |
HWVoiceOut *hw; |
114 |
char *name;
|
115 |
volume_t vol; |
116 |
struct audio_callback callback;
|
117 |
LIST_ENTRY (SWVoiceOut) entries; |
118 |
}; |
119 |
|
120 |
struct SWVoiceIn {
|
121 |
int active;
|
122 |
struct audio_pcm_info info;
|
123 |
int64_t ratio; |
124 |
void *rate;
|
125 |
int total_hw_samples_acquired;
|
126 |
st_sample_t *buf; |
127 |
f_sample *clip; |
128 |
HWVoiceIn *hw; |
129 |
char *name;
|
130 |
volume_t vol; |
131 |
struct audio_callback callback;
|
132 |
LIST_ENTRY (SWVoiceIn) entries; |
133 |
}; |
134 |
|
135 |
struct audio_driver {
|
136 |
const char *name; |
137 |
const char *descr; |
138 |
struct audio_option *options;
|
139 |
void *(*init) (void); |
140 |
void (*fini) (void *); |
141 |
struct audio_pcm_ops *pcm_ops;
|
142 |
int can_be_default;
|
143 |
int max_voices_out;
|
144 |
int max_voices_in;
|
145 |
int voice_size_out;
|
146 |
int voice_size_in;
|
147 |
}; |
148 |
|
149 |
struct audio_pcm_ops {
|
150 |
int (*init_out)(HWVoiceOut *hw, audsettings_t *as);
|
151 |
void (*fini_out)(HWVoiceOut *hw);
|
152 |
int (*run_out) (HWVoiceOut *hw);
|
153 |
int (*write) (SWVoiceOut *sw, void *buf, int size); |
154 |
int (*ctl_out) (HWVoiceOut *hw, int cmd, ...); |
155 |
|
156 |
int (*init_in) (HWVoiceIn *hw, audsettings_t *as);
|
157 |
void (*fini_in) (HWVoiceIn *hw);
|
158 |
int (*run_in) (HWVoiceIn *hw);
|
159 |
int (*read) (SWVoiceIn *sw, void *buf, int size); |
160 |
int (*ctl_in) (HWVoiceIn *hw, int cmd, ...); |
161 |
}; |
162 |
|
163 |
struct AudioState {
|
164 |
struct audio_driver *drv;
|
165 |
void *drv_opaque;
|
166 |
|
167 |
QEMUTimer *ts; |
168 |
LIST_HEAD (card_head, QEMUSoundCard) card_head; |
169 |
LIST_HEAD (hw_in_listhead, HWVoiceIn) hw_head_in; |
170 |
LIST_HEAD (hw_out_listhead, HWVoiceOut) hw_head_out; |
171 |
int nb_hw_voices_out;
|
172 |
int nb_hw_voices_in;
|
173 |
}; |
174 |
|
175 |
extern struct audio_driver no_audio_driver; |
176 |
extern struct audio_driver oss_audio_driver; |
177 |
extern struct audio_driver sdl_audio_driver; |
178 |
extern struct audio_driver wav_audio_driver; |
179 |
extern struct audio_driver fmod_audio_driver; |
180 |
extern struct audio_driver alsa_audio_driver; |
181 |
extern struct audio_driver coreaudio_audio_driver; |
182 |
extern struct audio_driver dsound_audio_driver; |
183 |
extern volume_t nominal_volume;
|
184 |
|
185 |
void audio_pcm_init_info (struct audio_pcm_info *info, audsettings_t *as, |
186 |
int swap_endian);
|
187 |
void audio_pcm_info_clear_buf (struct audio_pcm_info *info, void *buf, int len); |
188 |
|
189 |
int audio_pcm_sw_write (SWVoiceOut *sw, void *buf, int len); |
190 |
int audio_pcm_hw_get_live_in (HWVoiceIn *hw);
|
191 |
|
192 |
int audio_pcm_sw_read (SWVoiceIn *sw, void *buf, int len); |
193 |
int audio_pcm_hw_get_live_out (HWVoiceOut *hw);
|
194 |
int audio_pcm_hw_get_live_out2 (HWVoiceOut *hw, int *nb_live); |
195 |
|
196 |
int audio_bug (const char *funcname, int cond); |
197 |
void *audio_calloc (const char *funcname, int nmemb, size_t size); |
198 |
|
199 |
#define VOICE_ENABLE 1 |
200 |
#define VOICE_DISABLE 2 |
201 |
|
202 |
static inline int audio_ring_dist (int dst, int src, int len) |
203 |
{ |
204 |
return (dst >= src) ? (dst - src) : (len - src + dst);
|
205 |
} |
206 |
|
207 |
static inline int audio_need_to_swap_endian (int endianness) |
208 |
{ |
209 |
#ifdef WORDS_BIGENDIAN
|
210 |
return endianness != 1; |
211 |
#else
|
212 |
return endianness != 0; |
213 |
#endif
|
214 |
} |
215 |
|
216 |
#if defined __GNUC__
|
217 |
#define GCC_ATTR __attribute__ ((__unused__, __format__ (__printf__, 1, 2))) |
218 |
#define INIT_FIELD(f) . f
|
219 |
#define GCC_FMT_ATTR(n, m) __attribute__ ((__format__ (__printf__, n, m)))
|
220 |
#else
|
221 |
#define GCC_ATTR /**/ |
222 |
#define INIT_FIELD(f) /**/ |
223 |
#define GCC_FMT_ATTR(n, m)
|
224 |
#endif
|
225 |
|
226 |
static void GCC_ATTR dolog (const char *fmt, ...) |
227 |
{ |
228 |
va_list ap; |
229 |
|
230 |
va_start (ap, fmt); |
231 |
AUD_vlog (AUDIO_CAP, fmt, ap); |
232 |
va_end (ap); |
233 |
} |
234 |
|
235 |
#ifdef DEBUG
|
236 |
static void GCC_ATTR ldebug (const char *fmt, ...) |
237 |
{ |
238 |
va_list ap; |
239 |
|
240 |
va_start (ap, fmt); |
241 |
AUD_vlog (AUDIO_CAP, fmt, ap); |
242 |
va_end (ap); |
243 |
} |
244 |
#else
|
245 |
#if defined NDEBUG && defined __GNUC__
|
246 |
#define ldebug(...)
|
247 |
#elif defined NDEBUG && defined _MSC_VER
|
248 |
#define ldebug __noop
|
249 |
#else
|
250 |
static void GCC_ATTR ldebug (const char *fmt, ...) |
251 |
{ |
252 |
(void) fmt;
|
253 |
} |
254 |
#endif
|
255 |
#endif
|
256 |
|
257 |
#undef GCC_ATTR
|
258 |
|
259 |
#define AUDIO_STRINGIFY_(n) #n |
260 |
#define AUDIO_STRINGIFY(n) AUDIO_STRINGIFY_(n)
|
261 |
|
262 |
#if defined _MSC_VER || defined __GNUC__
|
263 |
#define AUDIO_FUNC __FUNCTION__
|
264 |
#else
|
265 |
#define AUDIO_FUNC __FILE__ ":" AUDIO_STRINGIFY (__LINE__) |
266 |
#endif
|
267 |
|
268 |
#endif /* audio_int.h */ |