2 * QEMU Audio subsystem header
4 * Copyright (c) 2003-2005 Vassili Karpov (malc)
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:
13 * The above copyright notice and this permission notice shall be included in
14 * all copies or substantial portions of the Software.
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
24 #ifndef QEMU_AUDIO_INT_H
25 #define QEMU_AUDIO_INT_H
27 #ifdef CONFIG_COREAUDIO
29 /* #define RECIPROCAL */
44 audio_option_tag_e tag
;
51 struct audio_callback
{
53 audio_callback_fn_t fn
;
56 struct audio_pcm_info
{
67 typedef struct HWVoiceOut
{
71 struct audio_pcm_info info
;
81 LIST_HEAD (sw_out_listhead
, SWVoiceOut
) sw_head
;
82 struct audio_pcm_ops
*pcm_ops
;
83 LIST_ENTRY (HWVoiceOut
) entries
;
86 typedef struct HWVoiceIn
{
88 struct audio_pcm_info info
;
93 int total_samples_captured
;
96 st_sample_t
*conv_buf
;
99 LIST_HEAD (sw_in_listhead
, SWVoiceIn
) sw_head
;
100 struct audio_pcm_ops
*pcm_ops
;
101 LIST_ENTRY (HWVoiceIn
) entries
;
105 struct audio_pcm_info info
;
110 int total_hw_samples_mixed
;
116 struct audio_callback callback
;
117 LIST_ENTRY (SWVoiceOut
) entries
;
122 struct audio_pcm_info info
;
125 int total_hw_samples_acquired
;
131 struct audio_callback callback
;
132 LIST_ENTRY (SWVoiceIn
) entries
;
135 struct audio_driver
{
138 struct audio_option
*options
;
139 void *(*init
) (void);
140 void (*fini
) (void *);
141 struct audio_pcm_ops
*pcm_ops
;
149 struct audio_pcm_ops
{
150 int (*init_out
)(HWVoiceOut
*hw
, audsettings_t
*as
);
151 void (*fini_out
)(HWVoiceOut
*hw
);
152 int (*run_out
) (HWVoiceOut
*hw
);
153 int (*write
) (SWVoiceOut
*sw
, void *buf
, int size
);
154 int (*ctl_out
) (HWVoiceOut
*hw
, int cmd
, ...);
156 int (*init_in
) (HWVoiceIn
*hw
, audsettings_t
*as
);
157 void (*fini_in
) (HWVoiceIn
*hw
);
158 int (*run_in
) (HWVoiceIn
*hw
);
159 int (*read
) (SWVoiceIn
*sw
, void *buf
, int size
);
160 int (*ctl_in
) (HWVoiceIn
*hw
, int cmd
, ...);
164 struct audio_driver
*drv
;
168 LIST_HEAD (card_head
, QEMUSoundCard
) card_head
;
169 LIST_HEAD (hw_in_listhead
, HWVoiceIn
) hw_head_in
;
170 LIST_HEAD (hw_out_listhead
, HWVoiceOut
) hw_head_out
;
171 int nb_hw_voices_out
;
175 extern struct audio_driver no_audio_driver
;
176 extern struct audio_driver oss_audio_driver
;
177 extern struct audio_driver sdl_audio_driver
;
178 extern struct audio_driver wav_audio_driver
;
179 extern struct audio_driver fmod_audio_driver
;
180 extern struct audio_driver alsa_audio_driver
;
181 extern struct audio_driver coreaudio_audio_driver
;
182 extern struct audio_driver dsound_audio_driver
;
183 extern volume_t nominal_volume
;
185 void audio_pcm_init_info (struct audio_pcm_info
*info
, audsettings_t
*as
,
187 void audio_pcm_info_clear_buf (struct audio_pcm_info
*info
, void *buf
, int len
);
189 int audio_pcm_sw_write (SWVoiceOut
*sw
, void *buf
, int len
);
190 int audio_pcm_hw_get_live_in (HWVoiceIn
*hw
);
192 int audio_pcm_sw_read (SWVoiceIn
*sw
, void *buf
, int len
);
193 int audio_pcm_hw_get_live_out (HWVoiceOut
*hw
);
194 int audio_pcm_hw_get_live_out2 (HWVoiceOut
*hw
, int *nb_live
);
196 int audio_bug (const char *funcname
, int cond
);
197 void *audio_calloc (const char *funcname
, int nmemb
, size_t size
);
199 #define VOICE_ENABLE 1
200 #define VOICE_DISABLE 2
202 static inline int audio_ring_dist (int dst
, int src
, int len
)
204 return (dst
>= src
) ? (dst
- src
) : (len
- src
+ dst
);
207 static inline int audio_need_to_swap_endian (int endianness
)
209 #ifdef WORDS_BIGENDIAN
210 return endianness
!= 1;
212 return endianness
!= 0;
217 #define GCC_ATTR __attribute__ ((__unused__, __format__ (__printf__, 1, 2)))
218 #define INIT_FIELD(f) . f
219 #define GCC_FMT_ATTR(n, m) __attribute__ ((__format__ (__printf__, n, m)))
221 #define GCC_ATTR /**/
222 #define INIT_FIELD(f) /**/
223 #define GCC_FMT_ATTR(n, m)
226 static void GCC_ATTR
dolog (const char *fmt
, ...)
231 AUD_vlog (AUDIO_CAP
, fmt
, ap
);
236 static void GCC_ATTR
ldebug (const char *fmt
, ...)
241 AUD_vlog (AUDIO_CAP
, fmt
, ap
);
245 #if defined NDEBUG && defined __GNUC__
247 #elif defined NDEBUG && defined _MSC_VER
248 #define ldebug __noop
250 static void GCC_ATTR
ldebug (const char *fmt
, ...)
259 #define AUDIO_STRINGIFY_(n) #n
260 #define AUDIO_STRINGIFY(n) AUDIO_STRINGIFY_(n)
262 #if defined _MSC_VER || defined __GNUC__
263 #define AUDIO_FUNC __FUNCTION__
265 #define AUDIO_FUNC __FILE__ ":" AUDIO_STRINGIFY (__LINE__)
268 #endif /* audio_int.h */