[Bug 50703] New: number of midi ports limited to 16

[WineHQ Bugzilla]

https://bugs.winehq.org/show_bug.cgi?id=50703

Bug ID: 50703
           Summary: number of midi ports limited to 16
           Product: Wine
           Version: 6.2
          Hardware: x86-64
                OS: Linux
            Status: UNCONFIRMED
          Severity: enhancement
          Priority: P2
         Component: winmm&mci
          Assignee: [e-mail]
          Reporter: [e-mail]
      Distribution: ---

As mentioned on the forum
https://forum.winehq.org/viewtopic.php?t=33605&p=126857 the number of midi
ports are arbitrarily limited to the first 16 that are found.

If I add up all midi devices (physical or virtual) I can easily get way beyond
this number, which means that I often can't select the port I actually want to
use.

Please allow wine to list all available midi ports (physical + virtual) on the
system.

[Bug 50703] number of midi ports limited to 16

[WineHQ Bugzilla]

https://bugs.winehq.org/show_bug.cgi?id=50703

--- Comment #1 from dreamer  ---
Apparently this is hardcoded here? ->
https://github.com/wine-mirror/wine/blob/e909986e6ea5ecd49b2b847f321ad89b2ae...

Suggestion to increase these lines to something higher, say 64 or 128 (in my
studio I can easily get to 30 ports).

Will try soon-ish if this works without problems.

[Bug 50703] number of midi ports limited to 16

[WineHQ Bugzilla]

https://bugs.winehq.org/show_bug.cgi?id=50703

--- Comment #2 from dreamer  ---
I finally got a round to try a build setting the maximum to 64 and it works
totally fine!

The comment mentions a refactor that would allow for an "unbound" amount of
devices, which ultimately would be ideal. However I do not have any idea on how
to do this.

For now 64 would be "enough for me", even though I can totally see someone
surpassing this number. Especially considering that it includes all software
ports on top of connected hardware.

Should I make a PR to do this initial increase, or wait for someone to figure
out the unbound case? For me it's really problematic that I have to turn off
software and disconnect devices, just so I can select the device that I want.

[Bug 50703] number of midi ports limited to 16

[WineHQ Bugzilla]

https://bugs.winehq.org/show_bug.cgi?id=50703

[e-mail] changed:

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--- Comment #3 from [e-mail] ---
Thanks so much, this has been bugging me for a long time too - I have a large
multiport interface and extra usb devices. Manually patched. Hopefully it makes
it in properly one day.  I think there may be some misunderstanding on the devs
part about the nature of the problem.

There's absolutely cases where more than 16 port are necessary.

Cheers.

[Bug 50703] number of midi ports limited to 16

[WineHQ Bugzilla]

https://bugs.winehq.org/show_bug.cgi?id=50703

Zeb Figura  changed:

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--- Comment #4 from Zeb Figura  ---
(In reply to sirjohndfox from comment #3)
> I think there may be some misunderstanding
> on the devs part about the nature of the problem.
>
> There's absolutely cases where more than 16 port are necessary.

I don't think there was any such comment? The only non-clerical feedback in [1]
I see is a request to remove the limit altogether.

[1] https://gitlab.winehq.org/wine/wine/-/merge_requests/1893