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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 *overriddenp; | |
48 | int overridden; | |
49 | }; | |
50 | ||
51 | struct audio_callback { | |
52 | void *opaque; | |
53 | audio_callback_fn 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_endianness; | |
65 | }; | |
66 | ||
67 | typedef struct SWVoiceCap SWVoiceCap; | |
68 | ||
69 | typedef 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 | ||
90 | typedef 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 | ||
110 | struct 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 | ||
127 | struct 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 | ||
143 | struct 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 | ||
158 | struct audio_pcm_ops { | |
159 | int (*init_out)(HWVoiceOut *hw, struct audsettings *as); | |
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); | |
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 | ||
172 | struct capture_callback { | |
173 | struct audio_capture_ops ops; | |
174 | void *opaque; | |
175 | QLIST_ENTRY (capture_callback) entries; | |
176 | }; | |
177 | ||
178 | struct CaptureVoiceOut { | |
179 | HWVoiceOut hw; | |
180 | void *buf; | |
181 | QLIST_HEAD (cb_listhead, capture_callback) cb_head; | |
182 | QLIST_ENTRY (CaptureVoiceOut) entries; | |
183 | }; | |
184 | ||
185 | struct SWVoiceCap { | |
186 | SWVoiceOut sw; | |
187 | CaptureVoiceOut *cap; | |
188 | QLIST_ENTRY (SWVoiceCap) entries; | |
189 | }; | |
190 | ||
191 | struct 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 | ||
205 | extern struct audio_driver no_audio_driver; | |
206 | extern struct audio_driver oss_audio_driver; | |
207 | extern struct audio_driver sdl_audio_driver; | |
208 | extern struct audio_driver wav_audio_driver; | |
209 | extern struct audio_driver fmod_audio_driver; | |
210 | extern struct audio_driver alsa_audio_driver; | |
211 | extern struct audio_driver coreaudio_audio_driver; | |
212 | extern struct audio_driver dsound_audio_driver; | |
213 | extern struct audio_driver esd_audio_driver; | |
214 | extern struct audio_driver pa_audio_driver; | |
215 | extern struct audio_driver spice_audio_driver; | |
216 | extern struct audio_driver winwave_audio_driver; | |
217 | extern const struct mixeng_volume nominal_volume; | |
218 | ||
219 | void audio_pcm_init_info (struct audio_pcm_info *info, struct audsettings *as); | |
220 | void audio_pcm_info_clear_buf (struct audio_pcm_info *info, void *buf, int len); | |
221 | ||
222 | int audio_pcm_sw_write (SWVoiceOut *sw, void *buf, int len); | |
223 | int audio_pcm_hw_get_live_in (HWVoiceIn *hw); | |
224 | ||
225 | int audio_pcm_sw_read (SWVoiceIn *sw, void *buf, int len); | |
226 | ||
227 | int audio_pcm_hw_clip_out (HWVoiceOut *hw, void *pcm_buf, | |
228 | int live, int pending); | |
229 | ||
230 | int audio_bug (const char *funcname, int cond); | |
231 | void *audio_calloc (const char *funcname, int nmemb, size_t size); | |
232 | ||
233 | void audio_run (const char *msg); | |
234 | ||
235 | #define VOICE_ENABLE 1 | |
236 | #define VOICE_DISABLE 2 | |
237 | #define VOICE_VOLUME 3 | |
238 | ||
239 | #define VOICE_VOLUME_CAP (1 << VOICE_VOLUME) | |
240 | ||
241 | static inline int audio_ring_dist (int dst, int src, int len) | |
242 | { | |
243 | return (dst >= src) ? (dst - src) : (len - src + dst); | |
244 | } | |
245 | ||
246 | #define dolog(fmt, ...) AUD_log(AUDIO_CAP, fmt, ## __VA_ARGS__) | |
247 | ||
248 | #ifdef DEBUG | |
249 | #define ldebug(fmt, ...) AUD_log(AUDIO_CAP, fmt, ## __VA_ARGS__) | |
250 | #else | |
251 | #define ldebug(fmt, ...) (void)0 | |
252 | #endif | |
253 | ||
254 | #define AUDIO_STRINGIFY_(n) #n | |
255 | #define AUDIO_STRINGIFY(n) AUDIO_STRINGIFY_(n) | |
256 | ||
257 | #if defined _MSC_VER || defined __GNUC__ | |
258 | #define AUDIO_FUNC __FUNCTION__ | |
259 | #else | |
260 | #define AUDIO_FUNC __FILE__ ":" AUDIO_STRINGIFY (__LINE__) | |
261 | #endif | |
262 | ||
263 | #endif /* audio_int.h */ |