/*
* 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 *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_endianness;
};
typedef struct SWVoiceCap SWVoiceCap;
typedef struct HWVoiceOut {
int enabled;
int pending_disable;
struct audio_pcm_info info;
f_sample *clip;
int rpos;
uint64_t ts_helper;
st_sample_t *mix_buf;
int samples;
LIST_HEAD (sw_out_listhead, SWVoiceOut) sw_head;
LIST_HEAD (sw_cap_listhead, SWVoiceCap) cap_head;
struct audio_pcm_ops *pcm_ops;
LIST_ENTRY (HWVoiceOut) entries;
} HWVoiceOut;
typedef struct HWVoiceIn {
int enabled;
struct audio_pcm_info info;
t_sample *conv;
int wpos;
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;
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 *buf;
f_sample *clip;
HWVoiceIn *hw;
char *name;
volume_t vol;
struct audio_callback callback;
LIST_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;
};
struct audio_pcm_ops {
int (*init_out)(HWVoiceOut *hw, audsettings_t *as);
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, audsettings_t *as);
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;
LIST_ENTRY (capture_callback) entries;
};
struct CaptureVoiceOut {
HWVoiceOut hw;
void *buf;
LIST_HEAD (cb_listhead, capture_callback) cb_head;
LIST_ENTRY (CaptureVoiceOut) entries;
};
struct SWVoiceCap {
SWVoiceOut sw;
CaptureVoiceOut *cap;
LIST_ENTRY (SWVoiceCap) entries;
};
struct AudioState {
struct audio_driver *drv;
void *drv_opaque;
QEMUTimer *ts;
LIST_HEAD (card_listhead, QEMUSoundCard) card_head;
LIST_HEAD (hw_in_listhead, HWVoiceIn) hw_head_in;
LIST_HEAD (hw_out_listhead, HWVoiceOut) hw_head_out;
LIST_HEAD (cap_listhead, CaptureVoiceOut) cap_head;
int nb_hw_voices_out;
int nb_hw_voices_in;
};
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;
void audio_pcm_init_info (struct audio_pcm_info *info, audsettings_t *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_get_live_out (HWVoiceOut *hw);
int audio_pcm_hw_get_live_out2 (HWVoiceOut *hw, int *nb_live);
int audio_bug (const char *funcname, int cond);
void *audio_calloc (const char *funcname, int nmemb, size_t size);
#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);
}
#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 */
