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 #include "audio/audio.h" 28 29 #ifdef CONFIG_COREAUDIO 30 #define FLOAT_MIXENG 31 /* #define RECIPROCAL */ 32 #endif 33 #include "mixeng.h" 34 35 struct audio_pcm_ops; 36 37 typedef enum { 38 AUD_OPT_INT, 39 AUD_OPT_FMT, 40 AUD_OPT_STR, 41 AUD_OPT_BOOL 42 } audio_option_tag_e; 43 44 struct audio_option { 45 const char *name; 46 audio_option_tag_e tag; 47 void *valp; 48 const char *descr; 49 int *overriddenp; 50 int overridden; 51 }; 52 53 struct audio_callback { 54 void *opaque; 55 audio_callback_fn fn; 56 }; 57 58 struct audio_pcm_info { 59 int bits; 60 int sign; 61 int freq; 62 int nchannels; 63 int align; 64 int shift; 65 int bytes_per_second; 66 int swap_endianness; 67 }; 68 69 typedef struct SWVoiceCap SWVoiceCap; 70 71 typedef struct HWVoiceOut { 72 int enabled; 73 int poll_mode; 74 int pending_disable; 75 struct audio_pcm_info info; 76 77 f_sample *clip; 78 79 int rpos; 80 uint64_t ts_helper; 81 82 struct st_sample *mix_buf; 83 84 int samples; 85 QLIST_HEAD (sw_out_listhead, SWVoiceOut) sw_head; 86 QLIST_HEAD (sw_cap_listhead, SWVoiceCap) cap_head; 87 struct audio_pcm_ops *pcm_ops; 88 QLIST_ENTRY (HWVoiceOut) entries; 89 } HWVoiceOut; 90 91 typedef 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 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 }; 156 157 struct audio_pcm_ops { 158 int (*init_out)(HWVoiceOut *hw, struct audsettings *as); 159 void (*fini_out)(HWVoiceOut *hw); 160 int (*run_out) (HWVoiceOut *hw, int live); 161 int (*write) (SWVoiceOut *sw, void *buf, int size); 162 int (*ctl_out) (HWVoiceOut *hw, int cmd, ...); 163 164 int (*init_in) (HWVoiceIn *hw, struct audsettings *as); 165 void (*fini_in) (HWVoiceIn *hw); 166 int (*run_in) (HWVoiceIn *hw); 167 int (*read) (SWVoiceIn *sw, void *buf, int size); 168 int (*ctl_in) (HWVoiceIn *hw, int cmd, ...); 169 }; 170 171 struct capture_callback { 172 struct audio_capture_ops ops; 173 void *opaque; 174 QLIST_ENTRY (capture_callback) entries; 175 }; 176 177 struct CaptureVoiceOut { 178 HWVoiceOut hw; 179 void *buf; 180 QLIST_HEAD (cb_listhead, capture_callback) cb_head; 181 QLIST_ENTRY (CaptureVoiceOut) entries; 182 }; 183 184 struct SWVoiceCap { 185 SWVoiceOut sw; 186 CaptureVoiceOut *cap; 187 QLIST_ENTRY (SWVoiceCap) entries; 188 }; 189 190 struct AudioState { 191 struct audio_driver *drv; 192 void *drv_opaque; 193 194 QEMUTimer *ts; 195 QLIST_HEAD (card_listhead, QEMUSoundCard) card_head; 196 QLIST_HEAD (hw_in_listhead, HWVoiceIn) hw_head_in; 197 QLIST_HEAD (hw_out_listhead, HWVoiceOut) hw_head_out; 198 QLIST_HEAD (cap_listhead, CaptureVoiceOut) cap_head; 199 int nb_hw_voices_out; 200 int nb_hw_voices_in; 201 int vm_running; 202 }; 203 204 extern struct audio_driver no_audio_driver; 205 extern struct audio_driver oss_audio_driver; 206 extern struct audio_driver sdl_audio_driver; 207 extern struct audio_driver win_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 winwave_audio_driver; 216 extern struct mixeng_volume nominal_volume; 217 218 void audio_pcm_init_info (struct audio_pcm_info *info, struct audsettings *as); 219 void audio_pcm_info_clear_buf (struct audio_pcm_info *info, void *buf, int len); 220 221 int audio_pcm_sw_write (SWVoiceOut *sw, void *buf, int len); 222 int audio_pcm_hw_get_live_in (HWVoiceIn *hw); 223 224 int audio_pcm_sw_read (SWVoiceIn *sw, void *buf, int len); 225 226 int audio_pcm_hw_clip_out (HWVoiceOut *hw, void *pcm_buf, 227 int live, int pending); 228 229 int audio_bug (const char *funcname, int cond); 230 void *audio_calloc (const char *funcname, int nmemb, size_t size); 231 232 void audio_run (const char *msg); 233 234 #define VOICE_ENABLE 1 235 #define VOICE_DISABLE 2 236 237 static inline int audio_ring_dist (int dst, int src, int len) 238 { 239 return (dst >= src) ? (dst - src) : (len - src + dst); 240 } 241 242 #if defined __GNUC__ 243 #define INIT_FIELD(f) . f 244 #else 245 #define INIT_FIELD(f) /**/ 246 #endif 247 248 static void GCC_ATTR dolog (const char *fmt, ...) 249 { 250 va_list ap; 251 252 va_start (ap, fmt); 253 AUD_vlog (AUDIO_CAP, fmt, ap); 254 va_end (ap); 255 } 256 257 #ifdef DEBUG 258 static void GCC_ATTR ldebug (const char *fmt, ...) 259 { 260 va_list ap; 261 262 va_start (ap, fmt); 263 AUD_vlog (AUDIO_CAP, fmt, ap); 264 va_end (ap); 265 } 266 #else 267 #if defined NDEBUG && defined __GNUC__ 268 #define ldebug(...) 269 #elif defined NDEBUG && defined _MSC_VER 270 #define ldebug __noop 271 #else 272 static void GCC_ATTR ldebug (const char *fmt, ...) 273 { 274 (void) fmt; 275 } 276 #endif 277 #endif 278 279 #undef GCC_ATTR 280 281 #define AUDIO_STRINGIFY_(n) #n 282 #define AUDIO_STRINGIFY(n) AUDIO_STRINGIFY_(n) 283 284 #if defined _MSC_VER || defined __GNUC__ 285 #define AUDIO_FUNC __FUNCTION__ 286 #else 287 #define AUDIO_FUNC __FILE__ ":" AUDIO_STRINGIFY (__LINE__) 288 #endif 289 290 #endif /* audio_int.h */ 291
