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1.1 root 1: /*
2: * QEMU Audio subsystem header
1.1.1.2 root 3: *
4: * Copyright (c) 2003-2005 Vassili Karpov (malc)
5: *
1.1 root 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:
12: *
13: * The above copyright notice and this permission notice shall be included in
14: * all copies or substantial portions of the Software.
15: *
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
22: * THE SOFTWARE.
23: */
24: #ifndef QEMU_AUDIO_INT_H
25: #define QEMU_AUDIO_INT_H
26:
1.1.1.2 root 27: #ifdef CONFIG_COREAUDIO
28: #define FLOAT_MIXENG
29: /* #define RECIPROCAL */
30: #endif
31: #include "mixeng.h"
32:
33: struct audio_pcm_ops;
34:
35: typedef enum {
36: AUD_OPT_INT,
37: AUD_OPT_FMT,
38: AUD_OPT_STR,
39: AUD_OPT_BOOL
40: } audio_option_tag_e;
41:
42: struct audio_option {
43: const char *name;
44: audio_option_tag_e tag;
45: void *valp;
46: const char *descr;
1.1.1.4 ! root 47: int *overriddenp;
! 48: int overridden;
1.1.1.2 root 49: };
1.1 root 50:
1.1.1.2 root 51: struct audio_callback {
52: void *opaque;
53: audio_callback_fn_t fn;
54: };
1.1 root 55:
1.1.1.2 root 56: struct audio_pcm_info {
57: int bits;
58: int sign;
59: int freq;
60: int nchannels;
61: int align;
62: int shift;
63: int bytes_per_second;
1.1.1.3 root 64: int swap_endianness;
1.1.1.2 root 65: };
66:
1.1.1.3 root 67: typedef struct SWVoiceCap SWVoiceCap;
68:
1.1.1.2 root 69: typedef struct HWVoiceOut {
1.1 root 70: int enabled;
71: int pending_disable;
1.1.1.2 root 72: struct audio_pcm_info info;
1.1 root 73:
74: f_sample *clip;
75:
76: int rpos;
1.1.1.2 root 77: uint64_t ts_helper;
1.1 root 78:
79: st_sample_t *mix_buf;
80:
81: int samples;
1.1.1.2 root 82: LIST_HEAD (sw_out_listhead, SWVoiceOut) sw_head;
1.1.1.3 root 83: LIST_HEAD (sw_cap_listhead, SWVoiceCap) cap_head;
1.1.1.2 root 84: struct audio_pcm_ops *pcm_ops;
85: LIST_ENTRY (HWVoiceOut) entries;
86: } HWVoiceOut;
1.1 root 87:
1.1.1.2 root 88: typedef struct HWVoiceIn {
89: int enabled;
90: struct audio_pcm_info info;
1.1 root 91:
1.1.1.2 root 92: t_sample *conv;
1.1 root 93:
1.1.1.2 root 94: int wpos;
95: int total_samples_captured;
96: uint64_t ts_helper;
1.1 root 97:
1.1.1.2 root 98: st_sample_t *conv_buf;
1.1 root 99:
1.1.1.2 root 100: int samples;
101: LIST_HEAD (sw_in_listhead, SWVoiceIn) sw_head;
102: struct audio_pcm_ops *pcm_ops;
103: LIST_ENTRY (HWVoiceIn) entries;
104: } HWVoiceIn;
1.1 root 105:
1.1.1.2 root 106: struct SWVoiceOut {
107: struct audio_pcm_info info;
1.1 root 108: t_sample *conv;
109: int64_t ratio;
110: st_sample_t *buf;
111: void *rate;
1.1.1.2 root 112: int total_hw_samples_mixed;
113: int active;
114: int empty;
115: HWVoiceOut *hw;
116: char *name;
117: volume_t vol;
118: struct audio_callback callback;
119: LIST_ENTRY (SWVoiceOut) entries;
120: };
1.1 root 121:
1.1.1.2 root 122: struct SWVoiceIn {
1.1 root 123: int active;
1.1.1.2 root 124: struct audio_pcm_info info;
125: int64_t ratio;
126: void *rate;
127: int total_hw_samples_acquired;
128: st_sample_t *buf;
129: f_sample *clip;
130: HWVoiceIn *hw;
1.1 root 131: char *name;
1.1.1.2 root 132: volume_t vol;
133: struct audio_callback callback;
134: LIST_ENTRY (SWVoiceIn) entries;
135: };
136:
137: struct audio_driver {
138: const char *name;
139: const char *descr;
140: struct audio_option *options;
141: void *(*init) (void);
142: void (*fini) (void *);
143: struct audio_pcm_ops *pcm_ops;
144: int can_be_default;
145: int max_voices_out;
146: int max_voices_in;
147: int voice_size_out;
148: int voice_size_in;
1.1 root 149: };
150:
1.1.1.2 root 151: struct audio_pcm_ops {
152: int (*init_out)(HWVoiceOut *hw, audsettings_t *as);
153: void (*fini_out)(HWVoiceOut *hw);
154: int (*run_out) (HWVoiceOut *hw);
155: int (*write) (SWVoiceOut *sw, void *buf, int size);
156: int (*ctl_out) (HWVoiceOut *hw, int cmd, ...);
157:
158: int (*init_in) (HWVoiceIn *hw, audsettings_t *as);
159: void (*fini_in) (HWVoiceIn *hw);
160: int (*run_in) (HWVoiceIn *hw);
161: int (*read) (SWVoiceIn *sw, void *buf, int size);
162: int (*ctl_in) (HWVoiceIn *hw, int cmd, ...);
163: };
1.1 root 164:
1.1.1.3 root 165: struct capture_callback {
166: struct audio_capture_ops ops;
167: void *opaque;
168: LIST_ENTRY (capture_callback) entries;
169: };
170:
171: struct CaptureVoiceOut {
172: HWVoiceOut hw;
173: void *buf;
174: LIST_HEAD (cb_listhead, capture_callback) cb_head;
175: LIST_ENTRY (CaptureVoiceOut) entries;
176: };
177:
178: struct SWVoiceCap {
179: SWVoiceOut sw;
180: CaptureVoiceOut *cap;
181: LIST_ENTRY (SWVoiceCap) entries;
182: };
183:
1.1.1.2 root 184: struct AudioState {
185: struct audio_driver *drv;
186: void *drv_opaque;
187:
188: QEMUTimer *ts;
1.1.1.3 root 189: LIST_HEAD (card_listhead, QEMUSoundCard) card_head;
1.1.1.2 root 190: LIST_HEAD (hw_in_listhead, HWVoiceIn) hw_head_in;
191: LIST_HEAD (hw_out_listhead, HWVoiceOut) hw_head_out;
1.1.1.3 root 192: LIST_HEAD (cap_listhead, CaptureVoiceOut) cap_head;
1.1.1.2 root 193: int nb_hw_voices_out;
194: int nb_hw_voices_in;
195: };
196:
197: extern struct audio_driver no_audio_driver;
198: extern struct audio_driver oss_audio_driver;
199: extern struct audio_driver sdl_audio_driver;
200: extern struct audio_driver wav_audio_driver;
201: extern struct audio_driver fmod_audio_driver;
202: extern struct audio_driver alsa_audio_driver;
203: extern struct audio_driver coreaudio_audio_driver;
204: extern struct audio_driver dsound_audio_driver;
205: extern volume_t nominal_volume;
206:
1.1.1.3 root 207: void audio_pcm_init_info (struct audio_pcm_info *info, audsettings_t *as);
1.1.1.2 root 208: void audio_pcm_info_clear_buf (struct audio_pcm_info *info, void *buf, int len);
209:
210: int audio_pcm_sw_write (SWVoiceOut *sw, void *buf, int len);
211: int audio_pcm_hw_get_live_in (HWVoiceIn *hw);
212:
213: int audio_pcm_sw_read (SWVoiceIn *sw, void *buf, int len);
214: int audio_pcm_hw_get_live_out (HWVoiceOut *hw);
215: int audio_pcm_hw_get_live_out2 (HWVoiceOut *hw, int *nb_live);
1.1 root 216:
1.1.1.2 root 217: int audio_bug (const char *funcname, int cond);
218: void *audio_calloc (const char *funcname, int nmemb, size_t size);
1.1 root 219:
220: #define VOICE_ENABLE 1
221: #define VOICE_DISABLE 2
222:
1.1.1.2 root 223: static inline int audio_ring_dist (int dst, int src, int len)
224: {
225: return (dst >= src) ? (dst - src) : (len - src + dst);
226: }
227:
228: #if defined __GNUC__
229: #define GCC_ATTR __attribute__ ((__unused__, __format__ (__printf__, 1, 2)))
230: #define INIT_FIELD(f) . f
231: #define GCC_FMT_ATTR(n, m) __attribute__ ((__format__ (__printf__, n, m)))
232: #else
233: #define GCC_ATTR /**/
234: #define INIT_FIELD(f) /**/
235: #define GCC_FMT_ATTR(n, m)
236: #endif
237:
238: static void GCC_ATTR dolog (const char *fmt, ...)
239: {
240: va_list ap;
241:
242: va_start (ap, fmt);
243: AUD_vlog (AUDIO_CAP, fmt, ap);
244: va_end (ap);
245: }
246:
247: #ifdef DEBUG
248: static void GCC_ATTR ldebug (const char *fmt, ...)
249: {
250: va_list ap;
251:
252: va_start (ap, fmt);
253: AUD_vlog (AUDIO_CAP, fmt, ap);
254: va_end (ap);
255: }
256: #else
257: #if defined NDEBUG && defined __GNUC__
258: #define ldebug(...)
259: #elif defined NDEBUG && defined _MSC_VER
260: #define ldebug __noop
261: #else
262: static void GCC_ATTR ldebug (const char *fmt, ...)
263: {
264: (void) fmt;
265: }
266: #endif
267: #endif
268:
269: #undef GCC_ATTR
270:
271: #define AUDIO_STRINGIFY_(n) #n
272: #define AUDIO_STRINGIFY(n) AUDIO_STRINGIFY_(n)
273:
274: #if defined _MSC_VER || defined __GNUC__
275: #define AUDIO_FUNC __FUNCTION__
276: #else
277: #define AUDIO_FUNC __FILE__ ":" AUDIO_STRINGIFY (__LINE__)
278: #endif
279:
1.1 root 280: #endif /* audio_int.h */
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