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85571bc7 FB |
1 | /* |
2 | * QEMU Audio subsystem header | |
1d14ffa9 FB |
3 | * |
4 | * Copyright (c) 2003-2005 Vassili Karpov (malc) | |
5 | * | |
85571bc7 FB |
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_H | |
25 | #define QEMU_AUDIO_H | |
26 | ||
c0fe3827 FB |
27 | #include "sys-queue.h" |
28 | ||
1d14ffa9 | 29 | typedef void (*audio_callback_fn_t) (void *opaque, int avail); |
85571bc7 | 30 | |
85571bc7 | 31 | typedef enum { |
c0fe3827 FB |
32 | AUD_FMT_U8, |
33 | AUD_FMT_S8, | |
34 | AUD_FMT_U16, | |
35 | AUD_FMT_S16 | |
85571bc7 FB |
36 | } audfmt_e; |
37 | ||
c0fe3827 FB |
38 | typedef struct { |
39 | int freq; | |
40 | int nchannels; | |
41 | audfmt_e fmt; | |
42 | } audsettings_t; | |
43 | ||
44 | typedef struct AudioState AudioState; | |
1d14ffa9 FB |
45 | typedef struct SWVoiceOut SWVoiceOut; |
46 | typedef struct SWVoiceIn SWVoiceIn; | |
47 | ||
c0fe3827 FB |
48 | typedef struct QEMUSoundCard { |
49 | AudioState *audio; | |
50 | char *name; | |
51 | LIST_ENTRY (QEMUSoundCard) entries; | |
52 | } QEMUSoundCard; | |
53 | ||
1d14ffa9 FB |
54 | typedef struct QEMUAudioTimeStamp { |
55 | uint64_t old_ts; | |
56 | } QEMUAudioTimeStamp; | |
57 | ||
58 | void AUD_vlog (const char *cap, const char *fmt, va_list ap); | |
59 | void AUD_log (const char *cap, const char *fmt, ...) | |
60 | #ifdef __GNUC__ | |
61 | __attribute__ ((__format__ (__printf__, 2, 3))) | |
62 | #endif | |
63 | ; | |
85571bc7 | 64 | |
c0fe3827 | 65 | AudioState *AUD_init (void); |
1d14ffa9 | 66 | void AUD_help (void); |
c0fe3827 FB |
67 | void AUD_register_card (AudioState *s, const char *name, QEMUSoundCard *card); |
68 | void AUD_remove_card (QEMUSoundCard *card); | |
1d14ffa9 | 69 | |
c0fe3827 FB |
70 | SWVoiceOut *AUD_open_out ( |
71 | QEMUSoundCard *card, | |
1d14ffa9 FB |
72 | SWVoiceOut *sw, |
73 | const char *name, | |
74 | void *callback_opaque, | |
75 | audio_callback_fn_t callback_fn, | |
571ec3d6 FB |
76 | audsettings_t *settings, |
77 | int sw_endian | |
1d14ffa9 | 78 | ); |
c0fe3827 FB |
79 | |
80 | void AUD_close_out (QEMUSoundCard *card, SWVoiceOut *sw); | |
81 | int AUD_write (SWVoiceOut *sw, void *pcm_buf, int size); | |
82 | int AUD_get_buffer_size_out (SWVoiceOut *sw); | |
83 | void AUD_set_active_out (SWVoiceOut *sw, int on); | |
84 | int AUD_is_active_out (SWVoiceOut *sw); | |
85 | ||
86 | void AUD_init_time_stamp_out (SWVoiceOut *sw, QEMUAudioTimeStamp *ts); | |
87 | uint64_t AUD_get_elapsed_usec_out (SWVoiceOut *sw, QEMUAudioTimeStamp *ts); | |
88 | ||
89 | SWVoiceIn *AUD_open_in ( | |
90 | QEMUSoundCard *card, | |
1d14ffa9 FB |
91 | SWVoiceIn *sw, |
92 | const char *name, | |
93 | void *callback_opaque, | |
94 | audio_callback_fn_t callback_fn, | |
571ec3d6 FB |
95 | audsettings_t *settings, |
96 | int sw_endian | |
1d14ffa9 | 97 | ); |
c0fe3827 FB |
98 | |
99 | void AUD_close_in (QEMUSoundCard *card, SWVoiceIn *sw); | |
100 | int AUD_read (SWVoiceIn *sw, void *pcm_buf, int size); | |
101 | void AUD_set_active_in (SWVoiceIn *sw, int on); | |
102 | int AUD_is_active_in (SWVoiceIn *sw); | |
103 | ||
104 | void AUD_init_time_stamp_in (SWVoiceIn *sw, QEMUAudioTimeStamp *ts); | |
105 | uint64_t AUD_get_elapsed_usec_in (SWVoiceIn *sw, QEMUAudioTimeStamp *ts); | |
85571bc7 FB |
106 | |
107 | static inline void *advance (void *p, int incr) | |
108 | { | |
109 | uint8_t *d = p; | |
110 | return (d + incr); | |
111 | } | |
112 | ||
113 | uint32_t popcount (uint32_t u); | |
114 | inline uint32_t lsbindex (uint32_t u); | |
115 | ||
1d14ffa9 FB |
116 | #ifdef __GNUC__ |
117 | #define audio_MIN(a, b) ( __extension__ ({ \ | |
118 | __typeof (a) ta = a; \ | |
119 | __typeof (b) tb = b; \ | |
120 | ((ta)>(tb)?(tb):(ta)); \ | |
121 | })) | |
122 | ||
123 | #define audio_MAX(a, b) ( __extension__ ({ \ | |
124 | __typeof (a) ta = a; \ | |
125 | __typeof (b) tb = b; \ | |
126 | ((ta)<(tb)?(tb):(ta)); \ | |
127 | })) | |
128 | #else | |
85571bc7 FB |
129 | #define audio_MIN(a, b) ((a)>(b)?(b):(a)) |
130 | #define audio_MAX(a, b) ((a)<(b)?(b):(a)) | |
1d14ffa9 | 131 | #endif |
85571bc7 FB |
132 | |
133 | #endif /* audio.h */ |