public static void RequestNote(Hardware.Timers.PIT.MusicalNote note, Hardware.Timers.PIT.MusicalNoteValue duration, uint bpm)
{
NoteRequest next = (NoteRequest)DeadNoteRequests.Pop();
if (next == null)
{
BasicConsole.WriteLine("Cannot set note request because a null object was returned from the circular buffer. Buffer may be full.");
BasicConsole.DelayOutput(10);
}
else
{
next.note = note;
next.duration = duration;
next.bpm = (int)bpm;
LiveNoteRequests.Push(next);
if (OwnerThread != null)
{
OwnerThread._Wake();
}
}
}
public static void Main()
{
OwnerThread = ProcessManager.CurrentThread;
Thread.Sleep_Indefinitely();
while (!Terminate)
{
//Scheduler.Disable();
Awake = false;
//BasicConsole.WriteLine("Playing notes...");
while (LiveNoteRequests.Count > 0)
{
//BasicConsole.WriteLine("Playing note...");
NoteRequest theReq = (NoteRequest)LiveNoteRequests.Pop();
try
{
Hardware.Timers.PIT.MusicalNote note = theReq.note;
Hardware.Timers.PIT.MusicalNoteValue duration = theReq.duration;
int bpm = theReq.bpm;
int dur_ms = (int)duration * 60 * 1000 / (bpm * 16);
long do_ms = dur_ms;
if (dur_ms >= 2000)
{
dur_ms -= 2000;
do_ms = 2000;
}
else
{
dur_ms = 0;
}
NoteState state = new NoteState()
{
dur_ms = dur_ms
};
if (note != Timers.PIT.MusicalNote.Silent)
{
Hardware.Timers.PIT.ThePIT.PlaySound((int)note);
}
Playing = true;
state.handlerId = Hardware.Timers.PIT.ThePIT.RegisterHandler(new Hardware.Timers.PITHandler(SysCall_StopNoteHandler, state, 1000000L * do_ms, true));
while (Playing)
{
Thread.Sleep(50);
}
}
catch
{
BasicConsole.Write("Error processing note request! ");
if (ExceptionMethods.CurrentException != null)
{
BasicConsole.Write(ExceptionMethods.CurrentException.Message);
}
BasicConsole.WriteLine();
Playing = false;
Hardware.Timers.PIT.ThePIT.MuteSound();
BasicConsole.DelayOutput(15);
}
finally
{
DeadNoteRequests.Push(theReq);
}
}
//BasicConsole.WriteLine("Finished playing notes.");
if (!Awake)
{
//BasicConsole.WriteLine("Sleeping non-critical interrupts thread...");
//Scheduler.Enable();
if (!Thread.Sleep_Indefinitely())
{
BasicConsole.SetTextColour(BasicConsole.error_colour);
BasicConsole.WriteLine("Failed to sleep play notes thread!");
BasicConsole.SetTextColour(BasicConsole.default_colour);
}
}
}
}
