1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24#ifndef QEMU_AUDIO_INT_H
25#define QEMU_AUDIO_INT_H
26
27#ifdef CONFIG_COREAUDIO
28#define FLOAT_MIXENG
29
30#endif
31#include "mixeng.h"
32
33struct audio_pcm_ops;
34
35typedef enum {
36 AUD_OPT_INT,
37 AUD_OPT_FMT,
38 AUD_OPT_STR,
39 AUD_OPT_BOOL
40} audio_option_tag_e;
41
42struct audio_option {
43 const char *name;
44 audio_option_tag_e tag;
45 void *valp;
46 const char *descr;
47 int *overriddenp;
48 int overridden;
49};
50
51struct audio_callback {
52 void *opaque;
53 audio_callback_fn fn;
54};
55
56struct 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_endianness;
65};
66
67typedef struct SWVoiceCap SWVoiceCap;
68
69typedef struct HWVoiceOut {
70 int enabled;
71 int poll_mode;
72 int pending_disable;
73 struct audio_pcm_info info;
74
75 f_sample *clip;
76
77 int rpos;
78 uint64_t ts_helper;
79
80 struct st_sample *mix_buf;
81
82 int samples;
83 QLIST_HEAD (sw_out_listhead, SWVoiceOut) sw_head;
84 QLIST_HEAD (sw_cap_listhead, SWVoiceCap) cap_head;
85 int ctl_caps;
86 struct audio_pcm_ops *pcm_ops;
87 QLIST_ENTRY (HWVoiceOut) entries;
88} HWVoiceOut;
89
90typedef struct HWVoiceIn {
91 int enabled;
92 int poll_mode;
93 struct audio_pcm_info info;
94
95 t_sample *conv;
96
97 int wpos;
98 int total_samples_captured;
99 uint64_t ts_helper;
100
101 struct st_sample *conv_buf;
102
103 int samples;
104 QLIST_HEAD (sw_in_listhead, SWVoiceIn) sw_head;
105 int ctl_caps;
106 struct audio_pcm_ops *pcm_ops;
107 QLIST_ENTRY (HWVoiceIn) entries;
108} HWVoiceIn;
109
110struct SWVoiceOut {
111 QEMUSoundCard *card;
112 struct audio_pcm_info info;
113 t_sample *conv;
114 int64_t ratio;
115 struct st_sample *buf;
116 void *rate;
117 int total_hw_samples_mixed;
118 int active;
119 int empty;
120 HWVoiceOut *hw;
121 char *name;
122 struct mixeng_volume vol;
123 struct audio_callback callback;
124 QLIST_ENTRY (SWVoiceOut) entries;
125};
126
127struct SWVoiceIn {
128 QEMUSoundCard *card;
129 int active;
130 struct audio_pcm_info info;
131 int64_t ratio;
132 void *rate;
133 int total_hw_samples_acquired;
134 struct st_sample *buf;
135 f_sample *clip;
136 HWVoiceIn *hw;
137 char *name;
138 struct mixeng_volume vol;
139 struct audio_callback callback;
140 QLIST_ENTRY (SWVoiceIn) entries;
141};
142
143struct audio_driver {
144 const char *name;
145 const char *descr;
146 struct audio_option *options;
147 void *(*init) (void);
148 void (*fini) (void *);
149 struct audio_pcm_ops *pcm_ops;
150 int can_be_default;
151 int max_voices_out;
152 int max_voices_in;
153 int voice_size_out;
154 int voice_size_in;
155 int ctl_caps;
156};
157
158struct audio_pcm_ops {
159 int (*init_out)(HWVoiceOut *hw, struct audsettings *as, void *drv_opaque);
160 void (*fini_out)(HWVoiceOut *hw);
161 int (*run_out) (HWVoiceOut *hw, int live);
162 int (*write) (SWVoiceOut *sw, void *buf, int size);
163 int (*ctl_out) (HWVoiceOut *hw, int cmd, ...);
164
165 int (*init_in) (HWVoiceIn *hw, struct audsettings *as, void *drv_opaque);
166 void (*fini_in) (HWVoiceIn *hw);
167 int (*run_in) (HWVoiceIn *hw);
168 int (*read) (SWVoiceIn *sw, void *buf, int size);
169 int (*ctl_in) (HWVoiceIn *hw, int cmd, ...);
170};
171
172struct capture_callback {
173 struct audio_capture_ops ops;
174 void *opaque;
175 QLIST_ENTRY (capture_callback) entries;
176};
177
178struct CaptureVoiceOut {
179 HWVoiceOut hw;
180 void *buf;
181 QLIST_HEAD (cb_listhead, capture_callback) cb_head;
182 QLIST_ENTRY (CaptureVoiceOut) entries;
183};
184
185struct SWVoiceCap {
186 SWVoiceOut sw;
187 CaptureVoiceOut *cap;
188 QLIST_ENTRY (SWVoiceCap) entries;
189};
190
191struct AudioState {
192 struct audio_driver *drv;
193 void *drv_opaque;
194
195 QEMUTimer *ts;
196 QLIST_HEAD (card_listhead, QEMUSoundCard) card_head;
197 QLIST_HEAD (hw_in_listhead, HWVoiceIn) hw_head_in;
198 QLIST_HEAD (hw_out_listhead, HWVoiceOut) hw_head_out;
199 QLIST_HEAD (cap_listhead, CaptureVoiceOut) cap_head;
200 int nb_hw_voices_out;
201 int nb_hw_voices_in;
202 int vm_running;
203};
204
205extern struct audio_driver no_audio_driver;
206extern struct audio_driver oss_audio_driver;
207extern struct audio_driver sdl_audio_driver;
208extern struct audio_driver wav_audio_driver;
209extern struct audio_driver alsa_audio_driver;
210extern struct audio_driver coreaudio_audio_driver;
211extern struct audio_driver dsound_audio_driver;
212extern struct audio_driver pa_audio_driver;
213extern struct audio_driver spice_audio_driver;
214extern const struct mixeng_volume nominal_volume;
215
216void audio_pcm_init_info (struct audio_pcm_info *info, struct audsettings *as);
217void audio_pcm_info_clear_buf (struct audio_pcm_info *info, void *buf, int len);
218
219int audio_pcm_sw_write (SWVoiceOut *sw, void *buf, int len);
220int audio_pcm_hw_get_live_in (HWVoiceIn *hw);
221
222int audio_pcm_sw_read (SWVoiceIn *sw, void *buf, int len);
223
224int audio_pcm_hw_clip_out (HWVoiceOut *hw, void *pcm_buf,
225 int live, int pending);
226
227int audio_bug (const char *funcname, int cond);
228void *audio_calloc (const char *funcname, int nmemb, size_t size);
229
230void audio_run (const char *msg);
231
232#define VOICE_ENABLE 1
233#define VOICE_DISABLE 2
234#define VOICE_VOLUME 3
235
236#define VOICE_VOLUME_CAP (1 << VOICE_VOLUME)
237
238static inline int audio_ring_dist (int dst, int src, int len)
239{
240 return (dst >= src) ? (dst - src) : (len - src + dst);
241}
242
243#define dolog(fmt, ...) AUD_log(AUDIO_CAP, fmt, ## __VA_ARGS__)
244
245#ifdef DEBUG
246#define ldebug(fmt, ...) AUD_log(AUDIO_CAP, fmt, ## __VA_ARGS__)
247#else
248#define ldebug(fmt, ...) (void)0
249#endif
250
251#define AUDIO_STRINGIFY_(n) #n
252#define AUDIO_STRINGIFY(n) AUDIO_STRINGIFY_(n)
253
254#if defined _MSC_VER || defined __GNUC__
255#define AUDIO_FUNC __FUNCTION__
256#else
257#define AUDIO_FUNC __FILE__ ":" AUDIO_STRINGIFY (__LINE__)
258#endif
259
260#endif
261
