[Stk] demo polyphony

[Mark Bahoric]

Hello, stk'ers,

A very dumb question below . . .

First the setup:
  Ubuntu 8.04 (Hardy Heron)
  stk-4.3.1/projects/demo exe compiled/linked ok
  tried playing the demo from a MIDI keyboard, but then ran into some funny
runtime behavior.

Following works ok, plays back monophonically as expected:
  $./demo Plucked -or -im 2

For some reason, MIDI port 0 is MIDI thru on my machine (not sure if this is
normal) but anyway,
alsa confirms the MIDI connection from MIDI in (client 20) to the demo
(client 128):
$aconnect -lio
    0 'Timer           '
    1 'Announce        '
        Connecting To: 15:0
client 14: 'Midi Through' [type=kernel]
    0 'Midi Through Port-0'
client 20: 'MPU-401 UART' [type=kernel]
    0 'MPU-401 UART MIDI'
        Connecting To: 128:0
client 128: 'RtMidi Input Client' [type=user]
    0 'RtMidi Input    '
        Connected From: 20:0


Running demo using more than one voice results in no sound at all, e.g.,
  $./demo Plucked -n 2 -or -im 2


QUESTION:  Does anyone know the magic words to get polyphonic playback
happening???

Looks like the code should support this because the call to startMidiInput
in utilities.cpp returns ok.
    265           if ( !messager.startMidiInput( port-1 ) )

Tried #define DELTA_CONTROL_TICKS 4, no help.


Thanks for any advice for the dummy!
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