[WIIU] Content rotation causes rotation issues in RetroArch menus.

Description

In a previous (closed) issue I filed about graphical menu drivers being broken on RetroArch (#10476), I noted in a comment that using RetroArch rotation causes moderate-to-significant issues in the RetroArch GUI. When the initial issue described in 10476 was resolved, the issue was marked closed, but graphical menus remain broken due to the rotation problem. Quoting myself from that issue:

The basic gist is that video rotation seems to affect the graphical menus when it should only be affecting the loaded content. e.g. In Ozone, the highlight bar indicating which menu item you currently have selected becomes rotated, while the rest of the menu is still upright:

Video Rotation: Normal

Video Rotation: 90 deg

The effect on XMB is minimal, it seems to rotate the background gradient, which doesn't affect usability at all but is still unintended behavior, of course.

Expected behavior

Content rotation settings should only affect content, not RetroArch menus.

Actual behavior

Content rotation settings affect content and RetroArch menus.

Steps to reproduce the bug

Enable any rotation setting other than "normal".

Bisect Results

The best I can do for the age of the menu rotation bug is "it's old". The earliest stable on the buildbot is 1.7.5 (826c77d) from October 3, 2018 and the rotation caused menu issues at least that far back.

Version/Commit

• RetroArch: 2a9915f

Environment information

• OS: Wii U

Start by reproducing the issue on Wii U with each non-normal rotation setting, comparing the Ozone and XMB menus with loaded content. Done means content remains rotated while RetroArch menus stay upright, including the Ozone selection highlight and XMB background.