void PlayLoop (MusicPlayer &player, AUGraph &graph, MusicTimeStamp sequenceLength, bool shouldPrint, bool waitAtEnd)
{
OSStatus result;
int waitCounter = 0;
while (1) {
usleep (2 * 1000 * 1000);
if (didOverload) {
printf ("* * * * * %lu Overloads detected on device playing audio\n", (unsigned long)didOverload);
overloadTime = CAHostTimeBase::ConvertToNanos (overloadTime - startRunningTime);
printf ("\tSeconds after start = %lf\n", double(overloadTime / 1000000000.));
didOverload = 0;
}
if (waitAtEnd && ++waitCounter > 10) break;
MusicTimeStamp time;
FailIf ((result = MusicPlayerGetTime (player, &time)), fail, "MusicPlayerGetTime");
if (shouldPrint) {
printf ("current time: %6.2f beats", time);
if (graph) {
Float32 load;
FailIf ((result = AUGraphGetCPULoad(graph, &load)), fail, "AUGraphGetCPULoad");
printf (", CPU load = %.2f%%\n", (load * 100.));
} else
printf ("\n"); //no cpu load on AUGraph - its not running - if just playing out to MIDI
}
if (time >= sequenceLength)
break;
}
return;
fail:
if (shouldPrint) printf ("Error = %ld\n", (long)result);
exit(1);
}
JNIEXPORT jint JNICALL Java_com_apple_audio_toolbox_AUGraph_AUGraphGetCPULoad
(JNIEnv *, jclass, jint inGraph, jint outCPULoad)
{
return (jint)AUGraphGetCPULoad((AUGraph)inGraph, (Float32 *)outCPULoad);
}