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_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_endianness; 65 }; 66 67 typedef struct SWVoiceCap SWVoiceCap; 68 69 typedef struct HWVoiceOut { 70 int enabled; 71 int pending_disable; 72 struct audio_pcm_info info; 73 74 f_sample *clip; 75 76 int rpos; 77 uint64_t ts_helper; 78 79 struct st_sample *mix_buf; 80 81 int samples; 82 LIST_HEAD (sw_out_listhead, SWVoiceOut) sw_head; 83 LIST_HEAD (sw_cap_listhead, SWVoiceCap) cap_head; 84 struct audio_pcm_ops *pcm_ops; 85 LIST_ENTRY (HWVoiceOut) entries; 86 } HWVoiceOut; 87 88 typedef struct HWVoiceIn { 89 int enabled; 90 struct audio_pcm_info info; 91 92 t_sample *conv; 93 94 int wpos; 95 int total_samples_captured; 96 uint64_t ts_helper; 97 98 struct st_sample *conv_buf; 99 100 int samples; 101 LIST_HEAD (sw_in_listhead, SWVoiceIn) sw_head; 102 struct audio_pcm_ops *pcm_ops; 103 LIST_ENTRY (HWVoiceIn) entries; 104 } HWVoiceIn; 105 106 struct SWVoiceOut { 107 QEMUSoundCard *card; 108 struct audio_pcm_info info; 109 t_sample *conv; 110 int64_t ratio; 111 struct st_sample *buf; 112 void *rate; 113 int total_hw_samples_mixed; 114 int active; 115 int empty; 116 HWVoiceOut *hw; 117 char *name; 118 struct mixeng_volume vol; 119 struct audio_callback callback; 120 LIST_ENTRY (SWVoiceOut) entries; 121 }; 122 123 struct SWVoiceIn { 124 QEMUSoundCard *card; 125 int active; 126 struct audio_pcm_info info; 127 int64_t ratio; 128 void *rate; 129 int total_hw_samples_acquired; 130 struct st_sample *buf; 131 f_sample *clip; 132 HWVoiceIn *hw; 133 char *name; 134 struct mixeng_volume vol; 135 struct audio_callback callback; 136 LIST_ENTRY (SWVoiceIn) entries; 137 }; 138 139 struct audio_driver { 140 const char *name; 141 const char *descr; 142 struct audio_option *options; 143 void *(*init) (void); 144 void (*fini) (void *); 145 struct audio_pcm_ops *pcm_ops; 146 int can_be_default; 147 int max_voices_out; 148 int max_voices_in; 149 int voice_size_out; 150 int voice_size_in; 151 }; 152 153 struct audio_pcm_ops { 154 int (*init_out)(HWVoiceOut *hw, struct audsettings *as); 155 void (*fini_out)(HWVoiceOut *hw); 156 int (*run_out) (HWVoiceOut *hw); 157 int (*write) (SWVoiceOut *sw, void *buf, int size); 158 int (*ctl_out) (HWVoiceOut *hw, int cmd, ...); 159 160 int (*init_in) (HWVoiceIn *hw, struct audsettings *as); 161 void (*fini_in) (HWVoiceIn *hw); 162 int (*run_in) (HWVoiceIn *hw); 163 int (*read) (SWVoiceIn *sw, void *buf, int size); 164 int (*ctl_in) (HWVoiceIn *hw, int cmd, ...); 165 }; 166 167 struct capture_callback { 168 struct audio_capture_ops ops; 169 void *opaque; 170 LIST_ENTRY (capture_callback) entries; 171 }; 172 173 struct CaptureVoiceOut { 174 HWVoiceOut hw; 175 void *buf; 176 LIST_HEAD (cb_listhead, capture_callback) cb_head; 177 LIST_ENTRY (CaptureVoiceOut) entries; 178 }; 179 180 struct SWVoiceCap { 181 SWVoiceOut sw; 182 CaptureVoiceOut *cap; 183 LIST_ENTRY (SWVoiceCap) entries; 184 }; 185 186 struct AudioState { 187 struct audio_driver *drv; 188 void *drv_opaque; 189 190 QEMUTimer *ts; 191 LIST_HEAD (card_listhead, QEMUSoundCard) card_head; 192 LIST_HEAD (hw_in_listhead, HWVoiceIn) hw_head_in; 193 LIST_HEAD (hw_out_listhead, HWVoiceOut) hw_head_out; 194 LIST_HEAD (cap_listhead, CaptureVoiceOut) cap_head; 195 int nb_hw_voices_out; 196 int nb_hw_voices_in; 197 int vm_running; 198 }; 199 200 extern struct audio_driver no_audio_driver; 201 extern struct audio_driver oss_audio_driver; 202 extern struct audio_driver sdl_audio_driver; 203 extern struct audio_driver wav_audio_driver; 204 extern struct audio_driver fmod_audio_driver; 205 extern struct audio_driver alsa_audio_driver; 206 extern struct audio_driver coreaudio_audio_driver; 207 extern struct audio_driver dsound_audio_driver; 208 extern struct audio_driver esd_audio_driver; 209 extern struct audio_driver pa_audio_driver; 210 extern struct mixeng_volume nominal_volume; 211 212 void audio_pcm_init_info (struct audio_pcm_info *info, struct audsettings *as); 213 void audio_pcm_info_clear_buf (struct audio_pcm_info *info, void *buf, int len); 214 215 int audio_pcm_sw_write (SWVoiceOut *sw, void *buf, int len); 216 int audio_pcm_hw_get_live_in (HWVoiceIn *hw); 217 218 int audio_pcm_sw_read (SWVoiceIn *sw, void *buf, int len); 219 int audio_pcm_hw_get_live_out (HWVoiceOut *hw); 220 int audio_pcm_hw_get_live_out2 (HWVoiceOut *hw, int *nb_live); 221 222 int audio_bug (const char *funcname, int cond); 223 void *audio_calloc (const char *funcname, int nmemb, size_t size); 224 225 #define VOICE_ENABLE 1 226 #define VOICE_DISABLE 2 227 228 static inline int audio_ring_dist (int dst, int src, int len) 229 { 230 return (dst >= src) ? (dst - src) : (len - src + dst); 231 } 232 233 #if defined __GNUC__ 234 #define GCC_ATTR __attribute__ ((__unused__, __format__ (__printf__, 1, 2))) 235 #define INIT_FIELD(f) . f 236 #define GCC_FMT_ATTR(n, m) __attribute__ ((__format__ (__printf__, n, m))) 237 #else 238 #define GCC_ATTR /**/ 239 #define INIT_FIELD(f) /**/ 240 #define GCC_FMT_ATTR(n, m) 241 #endif 242 243 static void GCC_ATTR dolog (const char *fmt, ...) 244 { 245 va_list ap; 246 247 va_start (ap, fmt); 248 AUD_vlog (AUDIO_CAP, fmt, ap); 249 va_end (ap); 250 } 251 252 #ifdef DEBUG 253 static void GCC_ATTR ldebug (const char *fmt, ...) 254 { 255 va_list ap; 256 257 va_start (ap, fmt); 258 AUD_vlog (AUDIO_CAP, fmt, ap); 259 va_end (ap); 260 } 261 #else 262 #if defined NDEBUG && defined __GNUC__ 263 #define ldebug(...) 264 #elif defined NDEBUG && defined _MSC_VER 265 #define ldebug __noop 266 #else 267 static void GCC_ATTR ldebug (const char *fmt, ...) 268 { 269 (void) fmt; 270 } 271 #endif 272 #endif 273 274 #undef GCC_ATTR 275 276 #define AUDIO_STRINGIFY_(n) #n 277 #define AUDIO_STRINGIFY(n) AUDIO_STRINGIFY_(n) 278 279 #if defined _MSC_VER || defined __GNUC__ 280 #define AUDIO_FUNC __FUNCTION__ 281 #else 282 #define AUDIO_FUNC __FILE__ ":" AUDIO_STRINGIFY (__LINE__) 283 #endif 284 285 #endif /* audio_int.h */ 286