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| Steam Controller in Allegro5 |
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Squall
Member #19,931
April 2021
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Hi guys, I'm new here, and new to Allegro 5. my main question is: is it possible to use a Steam Controller by Allegro 5? If so could you give me hints, code fragments, advices? A little background - I use a port of Allegro 5.2.b1-1 for Pascal. I modified the code so it can be used by Delphi 7 (because it was done for Lazarus and latest Delphi XE 10). As a base for my joystick experiments I use "ex_joysick_events". It works fine with my old Hama joysticks. When I plug a Steam Controller - nothing works. More precisely al_get_num_joysticks return 0, and al_get_joystick(0) returns no instance (null). |
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Dizzy Egg
Member #10,824
March 2009
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You probably need a driver for it, in order for Allegro to detect it. Unfortunately I do not know what driver you need! Probably an XBox Input Driver (or similar)?
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MiquelFire
Member #3,110
January 2003
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1) I never figured out how to configure the controller to appear as an actual controller when you don't launch your game from Steam. (Made it worthless for games that you couldn't run from Steam for whatever reason) 2) Normally the default for games is to be an Xbox controller. For games without the SDK, Steam tricks the games into thinking you're using an XBox controller. For games that use the SDK for the controller (I don't know the rules for using it, but I assume you need access to the Steam API), you could should the button prompts for the Steam Controller instead of the normal Xbox button prompts most Windows games tend to use. --- |
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Squall
Member #19,931
April 2021
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Thank you guys for fast answers! "I never figured out how to configure the controller to appear as an actual controller when you don't launch your game from Steam." Since this is a problem not only in Allegro, from what I've read on Steam forums, it seems there are 2 different standards/interfaces: dInput and xInput. dInput is something connected to DirectInput from DirectX and is pretty much what serve to older joysticks like my Hama. xInput (xbox?) is a newer and this is what my Steam Controller is using and all the new (xBox like) controllers. So I guess my question extends to what is Allegro using under the hood - dInput or xInput? Does Allegro adds a layer of abstraction so we get events from devices regardless of the interface? If not, what code to use to utilize different types? |
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MiquelFire
Member #3,110
January 2003
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I haven't looked at Allegro's code in forever, but I know there was a time it used DirectInput (because Allegro's Windows code pre-dates xInput), but I think I saw discussion at least for using Xinput. Edit: Looks like Allegro does use both, but if a controller supports both at the same time (without a mode switch that is), it will appear in Allegro twice: https://github.com/liballeg/allegro5/blob/master/src/win/wjoyall.c --- |
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