/* * 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 #include "sys-queue.h" #ifdef CONFIG_COREAUDIO #define FLOAT_MIXENG /* #define RECIPROCAL */ #endif #include "mixeng.h" int audio_bug (const char *funcname, int cond); 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 *overridenp; int overriden; }; struct audio_callback { void *opaque; audio_callback_fn_t fn; }; struct audio_pcm_info { int bits; int sign; int freq; int nchannels; int align; int shift; int bytes_per_second; int swap_endian; }; typedef struct HWVoiceOut { int active; int enabled; int pending_disable; int valid; struct audio_pcm_info info; f_sample *clip; int rpos; int bufsize; uint64_t ts_helper; st_sample_t *mix_buf; int samples; LIST_HEAD (sw_out_listhead, SWVoiceOut) sw_head; struct audio_pcm_ops *pcm_ops; LIST_ENTRY (HWVoiceOut) entries; } HWVoiceOut; typedef struct HWVoiceIn { int enabled; int active; struct audio_pcm_info info; t_sample *conv; int wpos; int bufsize; int total_samples_captured; uint64_t ts_helper; st_sample_t *conv_buf; int samples; LIST_HEAD (sw_in_listhead, SWVoiceIn) sw_head; struct audio_pcm_ops *pcm_ops; LIST_ENTRY (HWVoiceIn) entries; } HWVoiceIn; 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 fmod_audio_driver; extern struct audio_driver alsa_audio_driver; extern struct audio_driver coreaudio_audio_driver; extern struct audio_driver dsound_audio_driver; extern volume_t nominal_volume; 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; }; typedef struct AudioState { int fixed_settings_out; int fixed_freq_out; int fixed_channels_out; int fixed_fmt_out; int nb_hw_voices_out; int greedy_out; int fixed_settings_in; int fixed_freq_in; int fixed_channels_in; int fixed_fmt_in; int nb_hw_voices_in; int greedy_in; void *opaque; struct audio_driver *drv; QEMUTimer *ts; union { int usec; int64_t ticks; } period; int plive; } AudioState; extern AudioState audio_state; struct SWVoiceOut { struct audio_pcm_info info; t_sample *conv; int64_t ratio; st_sample_t *buf; void *rate; int total_hw_samples_mixed; int active; int empty; HWVoiceOut *hw; char *name; volume_t vol; struct audio_callback callback; LIST_ENTRY (SWVoiceOut) entries; }; struct SWVoiceIn { int active; struct audio_pcm_info info; int64_t ratio; void *rate; int total_hw_samples_acquired; st_sample_t *conv_buf; f_sample *clip; HWVoiceIn *hw; char *name; volume_t vol; struct audio_callback callback; LIST_ENTRY (SWVoiceIn) entries; }; struct audio_pcm_ops { int (*init_out)(HWVoiceOut *hw, int freq, int nchannels, audfmt_e fmt); void (*fini_out)(HWVoiceOut *hw); int (*run_out) (HWVoiceOut *hw); int (*write) (SWVoiceOut *sw, void *buf, int size); int (*ctl_out) (HWVoiceOut *hw, int cmd, ...); int (*init_in) (HWVoiceIn *hw, int freq, int nchannels, audfmt_e fmt); 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, ...); }; void audio_pcm_init_info (struct audio_pcm_info *info, int freq, int nchannels, audfmt_e fmt, int swap_endian); 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_get_live_out (HWVoiceOut *hw); int audio_pcm_hw_get_live_out2 (HWVoiceOut *hw, int *nb_live); #define VOICE_ENABLE 1 #define VOICE_DISABLE 2 static inline int audio_ring_dist (int dst, int src, int len) { return (dst >= src) ? (dst - src) : (len - src + dst); } static inline int audio_need_to_swap_endian (int endianness) { #ifdef WORDS_BIGENDIAN return endianness != 1; #else return endianness != 0; #endif } #if defined __GNUC__ #define GCC_ATTR __attribute__ ((__unused__, __format__ (__printf__, 1, 2))) #define INIT_FIELD(f) . f #define GCC_FMT_ATTR(n, m) __attribute__ ((__format__ (printf, n, m))) #else #define GCC_ATTR /**/ #define INIT_FIELD(f) /**/ #define GCC_FMT_ATTR(n, m) #endif static void GCC_ATTR dolog (const char *fmt, ...) { va_list ap; va_start (ap, fmt); AUD_vlog (AUDIO_CAP, fmt, ap); va_end (ap); } #ifdef DEBUG static void GCC_ATTR ldebug (const char *fmt, ...) { va_list ap; va_start (ap, fmt); AUD_vlog (AUDIO_CAP, fmt, ap); va_end (ap); } #else #if defined NDEBUG && defined __GNUC__ #define ldebug(...) #elif defined NDEBUG && defined _MSC_VER #define ldebug __noop #else static void GCC_ATTR ldebug (const char *fmt, ...) { (void) fmt; } #endif #endif #undef GCC_ATTR #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 */