Import QEMU upstream snapshot d2e570c

Upstream: https://gitlab.com/qemu-project/qemu.git

Upstream-Commit: d2e570cc0f97b936902a5b1b86b73c0f5998b475

replay/replay-audio.c

@@ -0,0 +1,81 @@
+/*
+ * replay-audio.c
+ *
+ * Copyright (c) 2010-2017 Institute for System Programming
+ *                         of the Russian Academy of Sciences.
+ *
+ * This work is licensed under the terms of the GNU GPL, version 2 or later.
+ * See the COPYING file in the top-level directory.
+ *
+ */
+
+#include "qemu/osdep.h"
+#include "qemu/error-report.h"
+#include "system/replay.h"
+#include "replay-internal.h"
+
+void replay_audio_out(size_t *played)
+{
+    if (replay_mode == REPLAY_MODE_RECORD) {
+        g_assert(replay_mutex_locked());
+        replay_save_instructions();
+        replay_put_event(EVENT_AUDIO_OUT);
+        replay_put_qword(*played);
+    } else if (replay_mode == REPLAY_MODE_PLAY) {
+        g_assert(replay_mutex_locked());
+        replay_account_executed_instructions();
+        if (replay_next_event_is(EVENT_AUDIO_OUT)) {
+            *played = replay_get_qword();
+            replay_finish_event();
+        } else {
+            error_report("Missing audio out event in the replay log");
+            abort();
+        }
+    }
+}
+
+void replay_audio_in_start(size_t *nsamples)
+{
+    if (replay_mode == REPLAY_MODE_RECORD) {
+        g_assert(replay_mutex_locked());
+        replay_save_instructions();
+        replay_put_event(EVENT_AUDIO_IN);
+        replay_put_qword(*nsamples);
+        replay_state.n_audio_samples = *nsamples;
+    } else if (replay_mode == REPLAY_MODE_PLAY) {
+        g_assert(replay_mutex_locked());
+        replay_account_executed_instructions();
+        if (replay_next_event_is(EVENT_AUDIO_IN)) {
+            *nsamples = replay_get_qword();
+            replay_state.n_audio_samples = *nsamples;
+        } else {
+            error_report("Missing audio in event in the replay log");
+            abort();
+        }
+    }
+}
+
+void replay_audio_in_sample_lr(uint64_t *left, uint64_t *right)
+{
+    if (replay_mode == REPLAY_MODE_RECORD) {
+        replay_put_qword(*left);
+        replay_put_qword(*right);
+    } else if (replay_mode == REPLAY_MODE_PLAY) {
+        *left = replay_get_qword();
+        *right = replay_get_qword();
+    } else {
+        return;
+    }
+
+    assert(replay_state.n_audio_samples > 0);
+    replay_state.n_audio_samples--;
+}
+
+void replay_audio_in_finish(void)
+{
+    assert(replay_state.n_audio_samples == 0);
+
+    if (replay_mode == REPLAY_MODE_PLAY) {
+        replay_finish_event();
+    }
+}