added integer display option, very useful for gpi/pi-zero.

[DSkywalk]

Hi this PR add a pixel perfect correction option to user CFG.

thanks :+1:

[DSkywalk]

Sorry Hugo ( @hhromic ), we meet in this PR from libretro.

could someone from retropie review these PRs?

Please check, the other PR on mame4all: https://github.com/RetroPie/mame4all-pi/pull/14

It would be great see this options available /officially/ :+1: It looks great on little LCD screens! :dancer:

Really thanks :)

[hhromic]

Hi @DSkywalk , no problem at all with pinging. I will ask around the devs about these PRs as I'm not very familiar with these emulators. I assume you tested your contributions thoroughly before submitting right? They look good.

[DSkywalk]

Yeah, these PRs just add a new option to removing any image-stretch.

And yes is tested a lot! We are using it (with some other guys in Telegram and reddit) from the first day I implemented it :tada: Is retropie open to new features or you preffer do not touch your ports? I do not want to disturb.

thanks again @hhromic :)

[DSkywalk]

Oh, sorry! the PR is already merged, sorry for the new changes. Just fixed some tabs.

[hhromic]

This PR still open :) Thanks @DSkywalk for your contributions, appreciated!

[hhromic]

@DSkywalk is this PR ready to merge?

[DSkywalk]

@hhromic I was think about backport hires mode (used in secret of mana), but it would be better made another PR because atm need more work. really thanks

[hhromic]

@DSkywalk hires mode sounds interesting! But yes, better submit in a separate PR when you have it done.

So, just to confirm, is this one (integer scaling) ready to merge then?

[DSkywalk]

Hi @hhromic, yes is ready to merge :+1:

I'm already working on a branch that adds a corrected hires mode, but as you said, it's time to make another new PR. Thanks again!