Kobo Libra 2 regression with touch transformation changes

[rg-atte]

Expected and old behavior:

QT_QPA_PLATFORM=kobo:touchscreen_rotate=90:touchscreen_invert_x=1:touchscreen_invert_y=0:logicaldpitarget=108

Corrects the touch position for touch input

Broken behavior:

touchscreen_rotate=90 does nothing. Did not keep track if invertions worked properly, but they did do something (did not bother to verify correctness with rotation already being hardstuck as wrong).

Details:

I noticed after getting my Kobo Libra 2 that the screen rotation options for the QT plugin were not working on the UltimateMangaReader, there were comments about it working before the April 18th release so I tested and verified that the options do work with the QT files from the Aug 06 2021 release.

I haven't had the time to look in to the exact reason it broke or why, but I would be guessing the following commit

9e04b6a

I may attempt to debug this but it heavily depends on if I have time. I will have to get things working for a dev environment.