N64 custom screen placement with integer seems to be currently bugged.

Is there an existing issue for this?

• This is a bug in RetroArch frontend
• I have searched the existing issues

Description

Edit: Think I found the culprit please check my latest message. The 1280x960 resolution option is the issue I think not working as intended for my custom aspect ratio with integer!

Recently updated retroarch on my steam deck to find the mupen64plus -next core screen location right down at the bottom. I use integer scaling & custom aspect ratio.

Changing the custom aspect ratio Y position into the minus brings it back to center

Expected behavior

Launch the core & screen should be dead center with positions x & y be at 0

Steps to reproduce the bug

Load n64 game using mupen64plus-next on vulkun
set integer scale on & use aspect ratio to custom.

Version/Commit

1.20.0

Bisect Results

Haven't tested recently

Check in the nightly version

I don't know

Platform & operating system

Linux, Steam Deck using Flatpak Retroarch from discover store

Affected Cores

Mupen64plus-next

Environment information

Installed through Flatpak

Relevant log output

No response

Start by reproducing the issue with RetroArch 1.20.0 on a Steam Deck using the mupen64plus-next core, Vulkan, integer scaling, custom aspect ratio, and the 1280x960 resolution option. Compare the screen position at custom X/Y values of 0 with the expected centered placement; no source file or test is identified in the report.