how to best optimize this code with a subroutine?

dusty
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Posts: 3

how to best optimize this code with a subroutine? Jul 1, 2020 17:39:50 GMT

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Post by dusty on Jul 1, 2020 17:39:50 GMT

I'm working on a script that will recreate the functionality of the APC40. I have a bunch of things worked out and now I'm trying to figure out how to reduce my script to something more manageable.

One thing that I needed to do was capture a button press, and send it back to the APC light up the button. So in the code below, I'm capturing the note on saving that state in to a variable L0. The note off that happens immediately after is dropped and on the second push of the button it blocks the note on but the note off turns off the light and returns the variable to it's default state of 0. ready for the next button press.

The issue is there are 87 buttons so the code is becoming very long and unmanageable. I was hoping to use a subroutine to generalize this block of code. I'm getting errors with how I'm trying to use variables this way, so I think I'm missing something important. I would appreciate any direction or thoughts..

Here is what I currently have:
IF LOAD
    ASS L0 = 1
END

# Launch clip row: 0, position: 1
IF M0 == 90 30 7F
    IF L0 == 0
        BLOCK
        ASS L0 = 1
        SEND 90 30 7F
    ELSE
        BLOCK
    END
END

IF M0 == 80 30 7F
    IF L0 == 2
        BLOCK
        SEND 80 30 7F
        ASS L0 = 0
    ELSE
        BLOCK
        ASS L0 = 2
    END
END

What I'm trying to get worked out (this is pseudo-code, not a working version to be clear)

IF LOAD
ASS L0 = 0

clipBtnRemap noteNum var_pos
        IF M0 == 90 noteNum 7F
            IF var_pos == 0
                BLOCK
                ASS var_pos = 1
                SEND 90 noteNum 7F
            ELSE
                BLOCK
            END
        END

        IF M0 == 80 noteNum 7F
            IF var_pos == 2
                BLOCK
                SEND 80 noteNum 7F
                ASS var_pos = 0
            ELSE
                BLOCK
                ASS var_pos = 2
            END
        END
END
END

IF M0 == 90 30 7F
  clipBtnRemap 30 L0

Last Edit: Jul 1, 2020 17:40:14 GMT by dusty

nic
Soapbox Supremo

Troublemaker

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Posts: 2,011

how to best optimize this code with a subroutine? Jul 1, 2020 19:02:34 GMT

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Post by nic on Jul 1, 2020 19:02:34 GMT

Hi dusty ,

Do you even need a subroutine? You could just use indirect array variables; something like:

if load
# initialise L array to '1'
assign I0 = 0
while I0 < $128
assign LI0 = 1
calc I0 = I0 + 1
end
end

# handle a note on
if MT == 90
if LM1 == 0
assign LM1 = 1
send 90 M1 7F
end
block
end

# handle note off
if MT == 80
if LM1 == 2
send 80 M1 7F
assign LM1 = 0
else
assign LM1 = 2
end
block
end

So we use the note number as the array index into the L array for storing the state of each note.

Regards, Nic.

dusty
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Posts: 3

how to best optimize this code with a subroutine? Jul 1, 2020 22:55:03 GMT

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Post by dusty on Jul 1, 2020 22:55:03 GMT

I appreciate the example but I don't think it's going to work for my use. I gave you a simplified version of the problem to keep the question focused.

The APC40 has a lot of buttons that all send out Note On/Off. This approach captures all of them and since they use the same note number it causes clobbering of variables.

The APC buttons are functionally broken in to 5 sections
Clip Launch (5 per channel Y Axis),
Clip Stop (1 per channel),
Track selection (1 per channel)
Scene Launch (8 one per channel X Axis)
Activator/Solo/Record one per channel

There are 8 channels that looks like a mixing board with lots of buttons. Each one of these has a different Midi channel 1-8. 5 Clip launch, 1 Clip stop, 1 Activator, 1 Solo, 1 record, 1 fader

The clip launch buttons are what I'm working on right now.
Each button in each channel sends the same note as the one next to it on the X axis.
0:0 sends 90 35,
1:0 sends 91 35
7:0 sends 97 35

0:1 sends 90 36
7:1 sends 97 36

Some of the things I'm trying to accomplish:
All buttons have to be remapped from notes to CC so they can be used with Zenbeats which doesn't let you use note on/off for control mapping.

Only one of the 5 buttons in a launch clip channel can be lit at a time. So when another button's LED is turned on the last button was lit in that same channel has to be turned off

Create a virtual array of buttons that extend the Y axis from 5 buttons to 20. I have a up & down array that I plan to use to set the position.

When a different virtual button set is chosen. I have a button toggled on and lit in group 1 if I hit the down button to group 2 it should go off then when I hit the up button to go back to group 1 it should light back up again.

Last I want to take the 8 channels and turn them in to 32 virtual channels. My plan there is to remap all the hardware controls 88 (buttons & sliders) to two midi channels ( i have more than 128 CCs per group). Then I have 4 selector buttons that one one is chosen it will change all the mappings for that channel group to a different midi channel. So channels 0-7 will be on midi channel 1, 24-31 midi channel 4.

Sorry I know that's a bit complicated.. that's why I was over simplifying it.

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Last Edit: Jul 1, 2020 23:05:33 GMT by dusty