Allow configuring tablet pen's associated mouse button and required pressure

[frenzibyte]

Discussed in #14036

^{Originally posted by Airiuwu July 28, 2021}
I personally have a broken pen without a nib or buttons and it thinks I am clicking 24/7

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Proposing the same as what OpenTabletDriver's interface has:

[C0D3-M4513R]

Have the same issue, but not as severe.
As for this:

Pen buttons by default are not bound to anything, if you have it bound then you can easily unbind that.

As for the nib/tip, that'll be resolved with a "tip button" and "tip pressure" setting you can configure to stop that. Tracking at #14037

I currently have manjaro running. I have the wacom kernel module loaded, and configured the all the pen buttons to do nothing. (Or is there some setting inside osu, which can bind tablet pen buttons?)
Osu though just ignores this. If my pen tip were completely broken, it would stop me, from scrolling with a regular mouse.

[frenzibyte]

This is exactly what's being suggested here, configuring pen buttons and pen tip. If you want to use your external tablet driver, disable "Tablet" from your input settings so that osu!lazer doesn't override it with its built-in tablet driver.

[C0D3-M4513R]

This is exactly what's being suggested here, configuring pen buttons and pen tip. If you want to use your external tablet driver, disable "Tablet" from your input settings so that osu!lazer doesn't override it with its built-in tablet driver.

That was my first thought, but that only leads to my tablet input being ignored (works fine on desktop) and my mouse cursor ending up somewhere off screen.
After giving this another thought, I disabled High Precision Mouse. That fixed this.
Weird though, that that setting would cause such an effect, since tablets are giving absolute coordinates?

[frenzibyte]

Tablet drivers in your computer would get mapped to mouse input, so it would be easy to imagine how High Precision Mouse could potentially break things apart. I'm not sure on the implementation details but this is all out of scope from osu! either way, something to resolve at SDL end if possible, since osu!framework does not deal with "absolute input" and "relative input" purely.

[leogott]

I have a working Intuos Wacom GD-1212-U, and I can not use it to play osu! because even when hovering, the tablet reports a pen pressure of more than 0. (something like 2-4 / 2046)

Configuring OpenTabletDriver itself to work around that is easy, doing so in osu! is (as of yet) impossible.

Personally I'd also be happy if I could be pointed to where the correct config options live

[peppy]

Unfortunately there's no available configuration for that yet. Maybe we should set the value required for a press to above zero as a sane default deadzone. We already do that for joysticks.

[leogott]

I'd prefer a toggle-option "don't respond to pressure" that unbinds M1 from the pen-pressure, over a fixed deadzone.
But a configurable stylus pressure deadzone would be the ideal.