Custom Aspect Ratio for both landscape and potrait (Android)

First and foremost consider this:

• Only RetroArch bugs should be filed here. Not core bugs or game bugs
• This is not a forum or a help section, this is strictly developer oriented

Description

Using Retroarch on a Android phone with the Aspect Ratio set to Custom with customized X and Y positions.

Expected behavior

When the Custom aspect ratio is set, changing the orientation of the device should keep the screen center or at least visible

Actual behavior

While the screen in potrait orientation is working fine), changing the device to landscape causes the screen to be positioned incorrectly, resulting in the screen being completely gone or only a tiny bit of the screen being visible. This gives the same result if it was done the other way around. (positioning the X and Y and then rotating from landscape to potrait, the landscape orientation will work fine, but the potrait mode will be affected incorrectly. The screen will be positioned so far away that the screen becomes non-visible). All menus except RGUI are not affected.

Steps to reproduce the bug

1. Setting the Aspect Ratio to Custom
2. Changing the X and Y position.
3. Rotate the device

Version/Commit

You can find this information under Information/System Information

• RetroArch: 1.8.4 (non-64bit version)

Environment information

• Device: Samsung Galaxy S10 (Exynos)
• OS: Android 10.

Start by reproducing the custom aspect-ratio behavior on Android 10 with RetroArch 1.8.4, using the listed orientation-change steps and checking RGUI separately from other menus. Trace the Android display and custom-position handling during rotation; done means the screen remains centered or visible in both portrait and landscape orientations.