replay/replay-audio.c

   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 "audio/audio.h"
  17
  18 void replay_audio_out(size_t *played)
  19 {
  20     if (replay_mode == REPLAY_MODE_RECORD) {
  21         g_assert(replay_mutex_locked());
  22         replay_save_instructions();
  23         replay_put_event(EVENT_AUDIO_OUT);
  24         replay_put_qword(*played);
  25     } else if (replay_mode == REPLAY_MODE_PLAY) {
  26         g_assert(replay_mutex_locked());
  27         replay_account_executed_instructions();
  28         if (replay_next_event_is(EVENT_AUDIO_OUT)) {
  29             *played = replay_get_qword();
  30             replay_finish_event();
  31         } else {
  32             error_report("Missing audio out event in the replay log");
  33             abort();
  34         }
  35     }
  36 }
  37
  38 void replay_audio_in(size_t *recorded, void *samples, size_t *wpos, size_t size)
  39 {
  40     int pos;
  41     uint64_t left, right;
  42     if (replay_mode == REPLAY_MODE_RECORD) {
  43         g_assert(replay_mutex_locked());
  44         replay_save_instructions();
  45         replay_put_event(EVENT_AUDIO_IN);
  46         replay_put_qword(*recorded);
  47         replay_put_qword(*wpos);
  48         for (pos = (*wpos - *recorded + size) % size ; pos != *wpos
  49              ; pos = (pos + 1) % size) {
  50             audio_sample_to_uint64(samples, pos, &left, &right);
  51             replay_put_qword(left);
  52             replay_put_qword(right);
  53         }
  54     } else if (replay_mode == REPLAY_MODE_PLAY) {
  55         g_assert(replay_mutex_locked());
  56         replay_account_executed_instructions();
  57         if (replay_next_event_is(EVENT_AUDIO_IN)) {
  58             *recorded = replay_get_qword();
  59             *wpos = replay_get_qword();
  60             for (pos = (*wpos - *recorded + size) % size ; pos != *wpos
  61                  ; pos = (pos + 1) % size) {
  62                 left = replay_get_qword();
  63                 right = replay_get_qword();
  64                 audio_sample_from_uint64(samples, pos, left, right);
  65             }
  66             replay_finish_event();
  67         } else {
  68             error_report("Missing audio in event in the replay log");
  69             abort();
  70         }
  71     }
  72 }