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25#ifndef QEMU_AUDIO_INT_H
26#define QEMU_AUDIO_INT_H
27
28#ifdef CONFIG_COREAUDIO
29#define FLOAT_MIXENG
30
31#endif
32#include "mixeng.h"
33
34struct audio_pcm_ops;
35
36typedef enum {
37 AUD_OPT_INT,
38 AUD_OPT_FMT,
39 AUD_OPT_STR,
40 AUD_OPT_BOOL
41} audio_option_tag_e;
42
43struct audio_option {
44 const char *name;
45 audio_option_tag_e tag;
46 void *valp;
47 const char *descr;
48 int *overriddenp;
49 int overridden;
50};
51
52struct audio_callback {
53 void *opaque;
54 audio_callback_fn fn;
55};
56
57struct audio_pcm_info {
58 int bits;
59 int sign;
60 int freq;
61 int nchannels;
62 int align;
63 int shift;
64 int bytes_per_second;
65 int swap_endianness;
66};
67
68typedef struct SWVoiceCap SWVoiceCap;
69
70typedef struct HWVoiceOut {
71 int enabled;
72 int poll_mode;
73 int pending_disable;
74 struct audio_pcm_info info;
75
76 f_sample *clip;
77
78 int rpos;
79 uint64_t ts_helper;
80
81 struct st_sample *mix_buf;
82
83 int samples;
84 QLIST_HEAD (sw_out_listhead, SWVoiceOut) sw_head;
85 QLIST_HEAD (sw_cap_listhead, SWVoiceCap) cap_head;
86 int ctl_caps;
87 struct audio_pcm_ops *pcm_ops;
88 QLIST_ENTRY (HWVoiceOut) entries;
89} HWVoiceOut;
90
91typedef struct HWVoiceIn {
92 int enabled;
93 int poll_mode;
94 struct audio_pcm_info info;
95
96 t_sample *conv;
97
98 int wpos;
99 int total_samples_captured;
100 uint64_t ts_helper;
101
102 struct st_sample *conv_buf;
103
104 int samples;
105 QLIST_HEAD (sw_in_listhead, SWVoiceIn) sw_head;
106 int ctl_caps;
107 struct audio_pcm_ops *pcm_ops;
108 QLIST_ENTRY (HWVoiceIn) entries;
109} HWVoiceIn;
110
111struct SWVoiceOut {
112 QEMUSoundCard *card;
113 struct audio_pcm_info info;
114 t_sample *conv;
115 int64_t ratio;
116 struct st_sample *buf;
117 void *rate;
118 int total_hw_samples_mixed;
119 int active;
120 int empty;
121 HWVoiceOut *hw;
122 char *name;
123 struct mixeng_volume vol;
124 struct audio_callback callback;
125 QLIST_ENTRY (SWVoiceOut) entries;
126};
127
128struct SWVoiceIn {
129 QEMUSoundCard *card;
130 int active;
131 struct audio_pcm_info info;
132 int64_t ratio;
133 void *rate;
134 int total_hw_samples_acquired;
135 struct st_sample *buf;
136 f_sample *clip;
137 HWVoiceIn *hw;
138 char *name;
139 struct mixeng_volume vol;
140 struct audio_callback callback;
141 QLIST_ENTRY (SWVoiceIn) entries;
142};
143
144struct audio_driver {
145 const char *name;
146 const char *descr;
147 struct audio_option *options;
148 void *(*init) (void);
149 void (*fini) (void *);
150 struct audio_pcm_ops *pcm_ops;
151 int can_be_default;
152 int max_voices_out;
153 int max_voices_in;
154 int voice_size_out;
155 int voice_size_in;
156 int ctl_caps;
157};
158
159struct audio_pcm_ops {
160 int (*init_out)(HWVoiceOut *hw, struct audsettings *as, void *drv_opaque);
161 void (*fini_out)(HWVoiceOut *hw);
162 int (*run_out) (HWVoiceOut *hw, int live);
163 int (*write) (SWVoiceOut *sw, void *buf, int size);
164 int (*ctl_out) (HWVoiceOut *hw, int cmd, ...);
165
166 int (*init_in) (HWVoiceIn *hw, struct audsettings *as, void *drv_opaque);
167 void (*fini_in) (HWVoiceIn *hw);
168 int (*run_in) (HWVoiceIn *hw);
169 int (*read) (SWVoiceIn *sw, void *buf, int size);
170 int (*ctl_in) (HWVoiceIn *hw, int cmd, ...);
171};
172
173struct capture_callback {
174 struct audio_capture_ops ops;
175 void *opaque;
176 QLIST_ENTRY (capture_callback) entries;
177};
178
179struct CaptureVoiceOut {
180 HWVoiceOut hw;
181 void *buf;
182 QLIST_HEAD (cb_listhead, capture_callback) cb_head;
183 QLIST_ENTRY (CaptureVoiceOut) entries;
184};
185
186struct SWVoiceCap {
187 SWVoiceOut sw;
188 CaptureVoiceOut *cap;
189 QLIST_ENTRY (SWVoiceCap) entries;
190};
191
192struct AudioState {
193 struct audio_driver *drv;
194 void *drv_opaque;
195
196 QEMUTimer *ts;
197 QLIST_HEAD (card_listhead, QEMUSoundCard) card_head;
198 QLIST_HEAD (hw_in_listhead, HWVoiceIn) hw_head_in;
199 QLIST_HEAD (hw_out_listhead, HWVoiceOut) hw_head_out;
200 QLIST_HEAD (cap_listhead, CaptureVoiceOut) cap_head;
201 int nb_hw_voices_out;
202 int nb_hw_voices_in;
203 int vm_running;
204};
205
206extern struct audio_driver no_audio_driver;
207extern struct audio_driver oss_audio_driver;
208extern struct audio_driver sdl_audio_driver;
209extern struct audio_driver wav_audio_driver;
210extern struct audio_driver alsa_audio_driver;
211extern struct audio_driver coreaudio_audio_driver;
212extern struct audio_driver dsound_audio_driver;
213extern struct audio_driver pa_audio_driver;
214extern struct audio_driver spice_audio_driver;
215extern const struct mixeng_volume nominal_volume;
216
217void audio_pcm_init_info (struct audio_pcm_info *info, struct audsettings *as);
218void audio_pcm_info_clear_buf (struct audio_pcm_info *info, void *buf, int len);
219
220int audio_pcm_sw_write (SWVoiceOut *sw, void *buf, int len);
221int audio_pcm_hw_get_live_in (HWVoiceIn *hw);
222
223int audio_pcm_sw_read (SWVoiceIn *sw, void *buf, int len);
224
225int audio_pcm_hw_clip_out (HWVoiceOut *hw, void *pcm_buf,
226 int live, int pending);
227
228int audio_bug (const char *funcname, int cond);
229void *audio_calloc (const char *funcname, int nmemb, size_t size);
230
231void audio_run (const char *msg);
232
233#define VOICE_ENABLE 1
234#define VOICE_DISABLE 2
235#define VOICE_VOLUME 3
236
237#define VOICE_VOLUME_CAP (1 << VOICE_VOLUME)
238
239static inline int audio_ring_dist (int dst, int src, int len)
240{
241 return (dst >= src) ? (dst - src) : (len - src + dst);
242}
243
244#define dolog(fmt, ...) AUD_log(AUDIO_CAP, fmt, ## __VA_ARGS__)
245
246#ifdef DEBUG
247#define ldebug(fmt, ...) AUD_log(AUDIO_CAP, fmt, ## __VA_ARGS__)
248#else
249#define ldebug(fmt, ...) (void)0
250#endif
251
252#define AUDIO_STRINGIFY_(n) #n
253#define AUDIO_STRINGIFY(n) AUDIO_STRINGIFY_(n)
254
255#if defined _MSC_VER || defined __GNUC__
256#define AUDIO_FUNC __FUNCTION__
257#else
258#define AUDIO_FUNC __FILE__ ":" AUDIO_STRINGIFY (__LINE__)
259#endif
260
261#endif
262
