Sam Lantinga d97387ccff Fixed bug 4600 - Dualshock 4 touchpad press is not detectable with SDL_JoystickGetButton
Dexter Friedman

When using a Dualshock 4 controller (model numbers CUH-ZCT1U and CUH-ZCT2U), pressing anywhere on the center touchpad does not send an SDL_JOYBUTTONDOWN event. I have verified this with testjoystick:

Repro steps:
1. Plug in a DS4 over USB
2. Compile testjoystick and run: testjoystick.exe 0
3. Press and hold the touchpad. Observe that no lime green box appears

Expected behavior:
A lime green box appears while the touchpad is pressed.

Notes:
I've attached a patch here that works on my PC and produces the expected behavior in testjoystick, for both DS4 model numbers I listed earlier.

If I understand correctly, by exposing this as a joystick button, the gamecontroller API mapping can be modified with a change to gamecontrollerdb.txt in the future.
2019-06-08 14:32:19 -07:00
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