Firstly - not sure this is a “linux” thing, but I’m using Linux so I have put it here in case. So I’ve looked over the internet + retroarch/libretro webpages and the limits of my findings are: *) Not much at all about touchscreens, although the occasional “doesn’t like absolute values” is given and “mouse” appears once or twice. *) Android is mentioned a few times - but I’m not using retroarch on Android. *) Some things just don’t get responded to
I wish to use my touchscreen as a lightgun input. Seems fairly straight forward, a lot of laptops + some PC screens come with touchscreen nowadays, seems logical to use instead of a controller for lightgun purposes… After all, it’s just “another mouse” (sort of) device.
But my questions are:
- Is this possible (I don’t want an overlay… I want a ‘press fire button when touching the screen + move pointer to X + Y relative to screen’ functionality)
- How do I get my retroarch to pick up the touchscreen / trackpad / mouse? None of the drivers seem to show any differences, and the “mouse index” is always “N/A” on all ports.
- Not knowing much about the old light-guns, did they used to do the timing calculations internally and somehow feed that through the cable to the games - or did the games somehow do the calculations on the games consoles (or possibly both depending on the hardware?)?