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 */ 264