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Diffstat (limited to 'qemu/audio/audio_int.h')
| -rw-r--r-- | qemu/audio/audio_int.h | 260 |
1 files changed, 260 insertions, 0 deletions
diff --git a/qemu/audio/audio_int.h b/qemu/audio/audio_int.h new file mode 100644 index 000000000..566df5edf --- /dev/null +++ b/qemu/audio/audio_int.h @@ -0,0 +1,260 @@ +/* + * QEMU Audio subsystem header + * + * Copyright (c) 2003-2005 Vassili Karpov (malc) + * + * Permission is hereby granted, free of charge, to any person obtaining a copy + * of this software and associated documentation files (the "Software"), to deal + * in the Software without restriction, including without limitation the rights + * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell + * copies of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in + * all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, + * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN + * THE SOFTWARE. + */ +#ifndef QEMU_AUDIO_INT_H +#define QEMU_AUDIO_INT_H + +#ifdef CONFIG_COREAUDIO +#define FLOAT_MIXENG +/* #define RECIPROCAL */ +#endif +#include "mixeng.h" + +struct audio_pcm_ops; + +typedef enum { + AUD_OPT_INT, + AUD_OPT_FMT, + AUD_OPT_STR, + AUD_OPT_BOOL +} audio_option_tag_e; + +struct audio_option { + const char *name; + audio_option_tag_e tag; + void *valp; + const char *descr; + int *overriddenp; + int overridden; +}; + +struct audio_callback { + void *opaque; + audio_callback_fn fn; +}; + +struct audio_pcm_info { + int bits; + int sign; + int freq; + int nchannels; + int align; + int shift; + int bytes_per_second; + int swap_endianness; +}; + +typedef struct SWVoiceCap SWVoiceCap; + +typedef struct HWVoiceOut { + int enabled; + int poll_mode; + int pending_disable; + struct audio_pcm_info info; + + f_sample *clip; + + int rpos; + uint64_t ts_helper; + + struct st_sample *mix_buf; + + int samples; + QLIST_HEAD (sw_out_listhead, SWVoiceOut) sw_head; + QLIST_HEAD (sw_cap_listhead, SWVoiceCap) cap_head; + int ctl_caps; + struct audio_pcm_ops *pcm_ops; + QLIST_ENTRY (HWVoiceOut) entries; +} HWVoiceOut; + +typedef struct HWVoiceIn { + int enabled; + int poll_mode; + struct audio_pcm_info info; + + t_sample *conv; + + int wpos; + int total_samples_captured; + uint64_t ts_helper; + + struct st_sample *conv_buf; + + int samples; + QLIST_HEAD (sw_in_listhead, SWVoiceIn) sw_head; + int ctl_caps; + struct audio_pcm_ops *pcm_ops; + QLIST_ENTRY (HWVoiceIn) entries; +} HWVoiceIn; + +struct SWVoiceOut { + QEMUSoundCard *card; + struct audio_pcm_info info; + t_sample *conv; + int64_t ratio; + struct st_sample *buf; + void *rate; + int total_hw_samples_mixed; + int active; + int empty; + HWVoiceOut *hw; + char *name; + struct mixeng_volume vol; + struct audio_callback callback; + QLIST_ENTRY (SWVoiceOut) entries; +}; + +struct SWVoiceIn { + QEMUSoundCard *card; + int active; + struct audio_pcm_info info; + int64_t ratio; + void *rate; + int total_hw_samples_acquired; + struct st_sample *buf; + f_sample *clip; + HWVoiceIn *hw; + char *name; + struct mixeng_volume vol; + struct audio_callback callback; + QLIST_ENTRY (SWVoiceIn) entries; +}; + +struct audio_driver { + const char *name; + const char *descr; + struct audio_option *options; + void *(*init) (void); + void (*fini) (void *); + struct audio_pcm_ops *pcm_ops; + int can_be_default; + int max_voices_out; + int max_voices_in; + int voice_size_out; + int voice_size_in; + int ctl_caps; +}; + +struct audio_pcm_ops { + int (*init_out)(HWVoiceOut *hw, struct audsettings *as, void *drv_opaque); + void (*fini_out)(HWVoiceOut *hw); + int (*run_out) (HWVoiceOut *hw, int live); + int (*write) (SWVoiceOut *sw, void *buf, int size); + int (*ctl_out) (HWVoiceOut *hw, int cmd, ...); + + int (*init_in) (HWVoiceIn *hw, struct audsettings *as, void *drv_opaque); + void (*fini_in) (HWVoiceIn *hw); + int (*run_in) (HWVoiceIn *hw); + int (*read) (SWVoiceIn *sw, void *buf, int size); + int (*ctl_in) (HWVoiceIn *hw, int cmd, ...); +}; + +struct capture_callback { + struct audio_capture_ops ops; + void *opaque; + QLIST_ENTRY (capture_callback) entries; +}; + +struct CaptureVoiceOut { + HWVoiceOut hw; + void *buf; + QLIST_HEAD (cb_listhead, capture_callback) cb_head; + QLIST_ENTRY (CaptureVoiceOut) entries; +}; + +struct SWVoiceCap { + SWVoiceOut sw; + CaptureVoiceOut *cap; + QLIST_ENTRY (SWVoiceCap) entries; +}; + +struct AudioState { + struct audio_driver *drv; + void *drv_opaque; + + QEMUTimer *ts; + QLIST_HEAD (card_listhead, QEMUSoundCard) card_head; + QLIST_HEAD (hw_in_listhead, HWVoiceIn) hw_head_in; + QLIST_HEAD (hw_out_listhead, HWVoiceOut) hw_head_out; + QLIST_HEAD (cap_listhead, CaptureVoiceOut) cap_head; + int nb_hw_voices_out; + int nb_hw_voices_in; + int vm_running; +}; + +extern struct audio_driver no_audio_driver; +extern struct audio_driver oss_audio_driver; +extern struct audio_driver sdl_audio_driver; +extern struct audio_driver wav_audio_driver; +extern struct audio_driver alsa_audio_driver; +extern struct audio_driver coreaudio_audio_driver; +extern struct audio_driver dsound_audio_driver; +extern struct audio_driver pa_audio_driver; +extern struct audio_driver spice_audio_driver; +extern const struct mixeng_volume nominal_volume; + +void audio_pcm_init_info (struct audio_pcm_info *info, struct audsettings *as); +void audio_pcm_info_clear_buf (struct audio_pcm_info *info, void *buf, int len); + +int audio_pcm_sw_write (SWVoiceOut *sw, void *buf, int len); +int audio_pcm_hw_get_live_in (HWVoiceIn *hw); + +int audio_pcm_sw_read (SWVoiceIn *sw, void *buf, int len); + +int audio_pcm_hw_clip_out (HWVoiceOut *hw, void *pcm_buf, + int live, int pending); + +int audio_bug (const char *funcname, int cond); +void *audio_calloc (const char *funcname, int nmemb, size_t size); + +void audio_run (const char *msg); + +#define VOICE_ENABLE 1 +#define VOICE_DISABLE 2 +#define VOICE_VOLUME 3 + +#define VOICE_VOLUME_CAP (1 << VOICE_VOLUME) + +static inline int audio_ring_dist (int dst, int src, int len) +{ + return (dst >= src) ? (dst - src) : (len - src + dst); +} + +#define dolog(fmt, ...) AUD_log(AUDIO_CAP, fmt, ## __VA_ARGS__) + +#ifdef DEBUG +#define ldebug(fmt, ...) AUD_log(AUDIO_CAP, fmt, ## __VA_ARGS__) +#else +#define ldebug(fmt, ...) (void)0 +#endif + +#define AUDIO_STRINGIFY_(n) #n +#define AUDIO_STRINGIFY(n) AUDIO_STRINGIFY_(n) + +#if defined _MSC_VER || defined __GNUC__ +#define AUDIO_FUNC __FUNCTION__ +#else +#define AUDIO_FUNC __FILE__ ":" AUDIO_STRINGIFY (__LINE__) +#endif + +#endif /* audio_int.h */ |