Bernhard Schelling

Commit 4c5cb55 now implements a change on what the core does when "Aspect Ratio Correction" is enabled: - Apply column and/or row doubling on the frame buffer as is requested...

I started out with something more optimal but ended up realizing that there is the "Overscan Border Size" which can add a variable pixel sized border around the framebuffer so...

As far as I know, original DOSBox always does the scaling internally by the rules our "Aspect Ratio Correction" adheres to now. I don't have the knowledge of video graphics...

No, `IS_EGAVGA_ARCH` means either EGA or VGA - So it means having the 'Emulated Graphics Chip' core option set to any of SVGA, VGA or EGA. > In the list...

So... we keep what we have (with just 2 choices for the "Aspect Ratio Correction" core option) but change it to only do height/width doubling if the "Emulated Graphics Chip"...

The OSK button can be remapped per game in the "Controller Mapper" tab of the Start Menu or you could swap R3 with another button globally in RetroArch's control menu...

Can you try to see if that also happens in the pre-release demo which is available here: https://archive.org/details/Diablo_1020 or is it different?

Not exactly what you're requesting, but I recently added a "Action Wheel" feature which you can see a preview screenshot in #477 Maybe we can find a way to have...

 So this is the plan now. A button can be mapped to "Port # while holding", then while holding that button, all other buttons will execute the actions mapped...

The newest version [1.0-preview1](../releases/tag/1.0-preview1) available here and from the RetroArch online core downloader now has the mentioned "Shift Gamepad Mapping While Holding a Button" feature, please give it a try!