Revision 1d14ffa9 audio/audio_int.h
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/* |
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* QEMU Audio subsystem header |
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*
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* Copyright (c) 2003-2004 Vassili Karpov (malc)
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*
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* |
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* Copyright (c) 2003-2005 Vassili Karpov (malc)
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* |
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* Permission is hereby granted, free of charge, to any person obtaining a copy |
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* of this software and associated documentation files (the "Software"), to deal |
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* in the Software without restriction, including without limitation the rights |
... | ... | |
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#ifndef QEMU_AUDIO_INT_H |
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#define QEMU_AUDIO_INT_H |
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#include "vl.h" |
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#include "sys-queue.h" |
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#ifdef CONFIG_COREAUDIO |
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#define FLOAT_MIXENG |
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/* #define RECIPROCAL */ |
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#endif |
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#include "mixeng.h" |
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int audio_bug (const char *funcname, int cond); |
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struct audio_pcm_ops; |
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typedef enum { |
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AUD_OPT_INT, |
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AUD_OPT_FMT, |
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AUD_OPT_STR, |
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AUD_OPT_BOOL |
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} audio_option_tag_e; |
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struct audio_option { |
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const char *name; |
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audio_option_tag_e tag; |
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void *valp; |
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const char *descr; |
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int *overridenp; |
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int overriden; |
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}; |
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struct audio_callback { |
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void *opaque; |
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audio_callback_fn_t fn; |
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}; |
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struct pcm_ops; |
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struct audio_pcm_info { |
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int bits; |
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int sign; |
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int freq; |
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int nchannels; |
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int align; |
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int shift; |
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int bytes_per_second; |
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int swap_endian; |
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}; |
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typedef struct HWVoice { |
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typedef struct HWVoiceOut {
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int active; |
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int enabled; |
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int pending_disable; |
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int valid; |
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int freq;
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struct audio_pcm_info info;
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f_sample *clip; |
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audfmt_e fmt; |
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int nchannels; |
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int align; |
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int shift; |
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int rpos; |
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int bufsize; |
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uint64_t ts_helper; |
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int bytes_per_second; |
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st_sample_t *mix_buf; |
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int samples; |
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int64_t old_ticks; |
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int nb_voices; |
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struct SWVoice **pvoice; |
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struct pcm_ops *pcm_ops; |
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} HWVoice; |
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LIST_HEAD (sw_out_listhead, SWVoiceOut) sw_head; |
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struct audio_pcm_ops *pcm_ops; |
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LIST_ENTRY (HWVoiceOut) entries; |
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} HWVoiceOut; |
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extern struct pcm_ops no_pcm_ops; |
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extern struct audio_output_driver no_output_driver; |
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typedef struct HWVoiceIn { |
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int enabled; |
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int active; |
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struct audio_pcm_info info; |
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t_sample *conv; |
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extern struct pcm_ops oss_pcm_ops; |
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extern struct audio_output_driver oss_output_driver; |
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int wpos; |
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int bufsize; |
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int total_samples_captured; |
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uint64_t ts_helper; |
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extern struct pcm_ops sdl_pcm_ops; |
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extern struct audio_output_driver sdl_output_driver; |
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st_sample_t *conv_buf; |
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extern struct pcm_ops wav_pcm_ops; |
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extern struct audio_output_driver wav_output_driver; |
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int samples; |
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LIST_HEAD (sw_in_listhead, SWVoiceIn) sw_head; |
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struct audio_pcm_ops *pcm_ops; |
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LIST_ENTRY (HWVoiceIn) entries; |
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} HWVoiceIn; |
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extern struct pcm_ops fmod_pcm_ops; |
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extern struct audio_output_driver fmod_output_driver; |
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extern struct audio_driver no_audio_driver; |
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extern struct audio_driver oss_audio_driver; |
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extern struct audio_driver sdl_audio_driver; |
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extern struct audio_driver wav_audio_driver; |
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extern struct audio_driver fmod_audio_driver; |
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extern struct audio_driver alsa_audio_driver; |
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extern struct audio_driver coreaudio_audio_driver; |
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extern struct audio_driver dsound_audio_driver; |
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extern volume_t nominal_volume; |
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struct audio_output_driver {
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struct audio_driver { |
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const char *name; |
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const char *descr; |
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struct audio_option *options; |
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void *(*init) (void); |
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void (*fini) (void *); |
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struct pcm_ops *pcm_ops; |
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struct audio_pcm_ops *pcm_ops;
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int can_be_default; |
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int max_voices; |
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int voice_size; |
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int max_voices_out; |
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int max_voices_in; |
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int voice_size_out; |
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int voice_size_in; |
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}; |
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typedef struct AudioState { |
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int fixed_format; |
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int fixed_freq; |
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int fixed_channels; |
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int fixed_fmt; |
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int nb_hw_voices; |
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int64_t ticks_threshold; |
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int freq_threshold; |
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int fixed_settings_out; |
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int fixed_freq_out; |
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int fixed_channels_out; |
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int fixed_fmt_out; |
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int nb_hw_voices_out; |
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int greedy_out; |
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int fixed_settings_in; |
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int fixed_freq_in; |
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int fixed_channels_in; |
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int fixed_fmt_in; |
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int nb_hw_voices_in; |
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int greedy_in; |
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void *opaque; |
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struct audio_output_driver *drv; |
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} AudioState; |
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extern AudioState audio_state; |
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struct audio_driver *drv; |
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struct SWVoice { |
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int freq; |
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audfmt_e fmt; |
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int nchannels; |
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QEMUTimer *ts; |
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union { |
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int usec; |
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int64_t ticks; |
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} period; |
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int shift; |
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int align; |
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int plive; |
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} AudioState; |
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extern AudioState audio_state; |
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struct SWVoiceOut { |
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struct audio_pcm_info info; |
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t_sample *conv; |
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int left; |
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int pos; |
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int bytes_per_second; |
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int64_t ratio; |
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st_sample_t *buf; |
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void *rate; |
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int total_hw_samples_mixed; |
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int active; |
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int empty; |
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HWVoiceOut *hw; |
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char *name; |
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volume_t vol; |
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struct audio_callback callback; |
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LIST_ENTRY (SWVoiceOut) entries; |
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}; |
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int wpos; |
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int live; |
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struct SWVoiceIn { |
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int active; |
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int64_t old_ticks; |
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HWVoice *hw; |
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struct audio_pcm_info info; |
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int64_t ratio; |
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void *rate; |
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int total_hw_samples_acquired; |
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st_sample_t *conv_buf; |
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f_sample *clip; |
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HWVoiceIn *hw; |
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char *name; |
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volume_t vol; |
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struct audio_callback callback; |
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LIST_ENTRY (SWVoiceIn) entries; |
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}; |
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struct pcm_ops { |
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int (*init) (HWVoice *hw, int freq, int nchannels, audfmt_e fmt); |
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void (*fini) (HWVoice *hw); |
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void (*run) (HWVoice *hw); |
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int (*write) (SWVoice *sw, void *buf, int size); |
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int (*ctl) (HWVoice *hw, int cmd, ...); |
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struct audio_pcm_ops { |
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int (*init_out)(HWVoiceOut *hw, int freq, int nchannels, audfmt_e fmt); |
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void (*fini_out)(HWVoiceOut *hw); |
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int (*run_out) (HWVoiceOut *hw); |
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int (*write) (SWVoiceOut *sw, void *buf, int size); |
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int (*ctl_out) (HWVoiceOut *hw, int cmd, ...); |
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int (*init_in) (HWVoiceIn *hw, int freq, int nchannels, audfmt_e fmt); |
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void (*fini_in) (HWVoiceIn *hw); |
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int (*run_in) (HWVoiceIn *hw); |
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int (*read) (SWVoiceIn *sw, void *buf, int size); |
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int (*ctl_in) (HWVoiceIn *hw, int cmd, ...); |
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}; |
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void pcm_sw_free_resources (SWVoice *sw); |
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int pcm_sw_alloc_resources (SWVoice *sw); |
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void pcm_sw_fini (SWVoice *sw); |
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int pcm_sw_init (SWVoice *sw, HWVoice *hw, int freq, |
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int nchannels, audfmt_e fmt); |
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void pcm_hw_clear (HWVoice *hw, void *buf, int len); |
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HWVoice * pcm_hw_find_any (HWVoice *hw); |
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HWVoice * pcm_hw_find_any_active (HWVoice *hw); |
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HWVoice * pcm_hw_find_any_passive (HWVoice *hw); |
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HWVoice * pcm_hw_find_specific (HWVoice *hw, int freq, |
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int nchannels, audfmt_e fmt); |
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HWVoice * pcm_hw_add (int freq, int nchannels, audfmt_e fmt); |
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int pcm_hw_add_sw (HWVoice *hw, SWVoice *sw); |
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int pcm_hw_del_sw (HWVoice *hw, SWVoice *sw); |
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SWVoice * pcm_create_voice_pair (int freq, int nchannels, audfmt_e fmt); |
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void pcm_hw_free_resources (HWVoice *hw); |
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int pcm_hw_alloc_resources (HWVoice *hw); |
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void pcm_hw_fini (HWVoice *hw); |
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void pcm_hw_gc (HWVoice *hw); |
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int pcm_hw_get_live (HWVoice *hw); |
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int pcm_hw_get_live2 (HWVoice *hw, int *nb_active); |
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void pcm_hw_dec_live (HWVoice *hw, int decr); |
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int pcm_hw_write (SWVoice *sw, void *buf, int len); |
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int audio_get_conf_int (const char *key, int defval); |
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const char *audio_get_conf_str (const char *key, const char *defval); |
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struct audio_output_driver; |
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void audio_pcm_init_info (struct audio_pcm_info *info, int freq, |
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int nchannels, audfmt_e fmt, int swap_endian); |
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void audio_pcm_info_clear_buf (struct audio_pcm_info *info, void *buf, int len); |
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int audio_pcm_sw_write (SWVoiceOut *sw, void *buf, int len); |
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int audio_pcm_hw_get_live_in (HWVoiceIn *hw); |
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int audio_pcm_sw_read (SWVoiceIn *sw, void *buf, int len); |
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int audio_pcm_hw_get_live_out (HWVoiceOut *hw); |
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int audio_pcm_hw_get_live_out2 (HWVoiceOut *hw, int *nb_live); |
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#define VOICE_ENABLE 1 |
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#define VOICE_DISABLE 2 |
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static inline int audio_ring_dist (int dst, int src, int len) |
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{ |
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return (dst >= src) ? (dst - src) : (len - src + dst); |
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} |
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static inline int audio_need_to_swap_endian (int endianness) |
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{ |
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#ifdef WORDS_BIGENDIAN |
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return endianness != 1; |
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#else |
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return endianness != 0; |
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#endif |
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} |
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#if defined __GNUC__ |
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#define GCC_ATTR __attribute__ ((__unused__, __format__ (__printf__, 1, 2))) |
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#define INIT_FIELD(f) . f |
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#define GCC_FMT_ATTR(n, m) __attribute__ ((__format__ (printf, n, m))) |
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#else |
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#define GCC_ATTR /**/ |
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#define INIT_FIELD(f) /**/ |
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#define GCC_FMT_ATTR(n, m) |
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#endif |
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static void GCC_ATTR dolog (const char *fmt, ...) |
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{ |
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va_list ap; |
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va_start (ap, fmt); |
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AUD_vlog (AUDIO_CAP, fmt, ap); |
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va_end (ap); |
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} |
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#ifdef DEBUG |
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static void GCC_ATTR ldebug (const char *fmt, ...) |
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{ |
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va_list ap; |
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va_start (ap, fmt); |
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AUD_vlog (AUDIO_CAP, fmt, ap); |
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va_end (ap); |
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} |
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#else |
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#if defined NDEBUG && defined __GNUC__ |
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#define ldebug(...) |
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#elif defined NDEBUG && defined _MSC_VER |
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#define ldebug __noop |
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#else |
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static void GCC_ATTR ldebug (const char *fmt, ...) |
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{ |
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(void) fmt; |
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} |
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#endif |
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#endif |
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#undef GCC_ATTR |
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#define AUDIO_STRINGIFY_(n) #n |
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#define AUDIO_STRINGIFY(n) AUDIO_STRINGIFY_(n) |
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#if defined _MSC_VER || defined __GNUC__ |
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#define AUDIO_FUNC __FUNCTION__ |
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#else |
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#define AUDIO_FUNC __FILE__ ":" AUDIO_STRINGIFY (__LINE__) |
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#endif |
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#endif /* audio_int.h */ |
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