xref: /qemu/replay/replay-audio.c (revision ac06724a)
1 /*
2  * replay-audio.c
3  *
4  * Copyright (c) 2010-2017 Institute for System Programming
5  *                         of the Russian Academy of Sciences.
6  *
7  * This work is licensed under the terms of the GNU GPL, version 2 or later.
8  * See the COPYING file in the top-level directory.
9  *
10  */
11 
12 #include "qemu/osdep.h"
13 #include "qemu/error-report.h"
14 #include "sysemu/replay.h"
15 #include "replay-internal.h"
16 #include "sysemu/sysemu.h"
17 #include "audio/audio.h"
18 
19 void replay_audio_out(int *played)
20 {
21     if (replay_mode == REPLAY_MODE_RECORD) {
22         replay_save_instructions();
23         replay_mutex_lock();
24         replay_put_event(EVENT_AUDIO_OUT);
25         replay_put_dword(*played);
26         replay_mutex_unlock();
27     } else if (replay_mode == REPLAY_MODE_PLAY) {
28         replay_account_executed_instructions();
29         replay_mutex_lock();
30         if (replay_next_event_is(EVENT_AUDIO_OUT)) {
31             *played = replay_get_dword();
32             replay_finish_event();
33             replay_mutex_unlock();
34         } else {
35             replay_mutex_unlock();
36             error_report("Missing audio out event in the replay log");
37             abort();
38         }
39     }
40 }
41 
42 void replay_audio_in(int *recorded, void *samples, int *wpos, int size)
43 {
44     int pos;
45     uint64_t left, right;
46     if (replay_mode == REPLAY_MODE_RECORD) {
47         replay_save_instructions();
48         replay_mutex_lock();
49         replay_put_event(EVENT_AUDIO_IN);
50         replay_put_dword(*recorded);
51         replay_put_dword(*wpos);
52         for (pos = (*wpos - *recorded + size) % size ; pos != *wpos
53              ; pos = (pos + 1) % size) {
54             audio_sample_to_uint64(samples, pos, &left, &right);
55             replay_put_qword(left);
56             replay_put_qword(right);
57         }
58         replay_mutex_unlock();
59     } else if (replay_mode == REPLAY_MODE_PLAY) {
60         replay_account_executed_instructions();
61         replay_mutex_lock();
62         if (replay_next_event_is(EVENT_AUDIO_IN)) {
63             *recorded = replay_get_dword();
64             *wpos = replay_get_dword();
65             for (pos = (*wpos - *recorded + size) % size ; pos != *wpos
66                  ; pos = (pos + 1) % size) {
67                 left = replay_get_qword();
68                 right = replay_get_qword();
69                 audio_sample_from_uint64(samples, pos, left, right);
70             }
71             replay_finish_event();
72             replay_mutex_unlock();
73         } else {
74             replay_mutex_unlock();
75             error_report("Missing audio in event in the replay log");
76             abort();
77         }
78     }
79 }
80