Build Your Own Arcade Controls Forum

Software Support => GroovyMAME => Topic started by: mamenewb100 on August 08, 2013, 09:15:58 pm

Title: Question about Atari Lynx in UME
Post by: mamenewb100 on August 08, 2013, 09:15:58 pm: Lately I've had some fun messing with Atari's portable system the lynx in UME and am trying to make look as nice as possible. Now the obvious problem with this portable system is that the resolution is too low to display properly at full screen. It uses a 160x102 resolution and I'm able to get close to exactly 2x the resolution at 320x206. So the scanlines only cover every other line and it looks very blocky.

However in Handy(A Lynx emu) it is able to display it really nicely by shrinking the size of the image in half, using half of the scanlines to cover every line. Problem is the Handy emu has slow choppy sound but the UME emu does not. Is this possible to use only half the scanlines to simulate really low resolutions in UME? ???
Title: Re: Question about Atari Lynx in UME
Post by: Calamity on August 10, 2013, 10:37:03 am: Hi mamenewb100,

I'm not exactly sure of what's the result you want to achive:

- Have the game rendered at 206p but with software scanlines so only one out of two physical scanlines is drawn with the original data?
- Have the game rendered in a small box of 160x102 centered inside the total resolution of 320x206?
Title: Re: Question about Atari Lynx in UME
Post by: mamenewb100 on August 10, 2013, 03:01:53 pm: Quote from: Calamity on August 10, 2013, 10:37:03 am

- Have the game rendered in a small box of 160x102 centered inside the total resolution of 320x206?

This.
Title: Re: Question about Atari Lynx in UME
Post by: Calamity on August 12, 2013, 03:10:46 pm: I was afraid you meant that. Well, I think there's no way to achieve this with GroovyMAME and the normal scaling behaviour. You might try creating a layout however, just like people do for displaying artwork. Coding it with the right sizes and then forcing the proper resolution might do exactly what you want, although some amount of work is required.
Title: Re: Question about Atari Lynx in UME
Post by: cools on August 13, 2013, 03:56:42 am: I don't recall seeing scanlines on my Lynx at any point.
Title: Re: Question about Atari Lynx in UME
Post by: Calamity on August 13, 2013, 09:13:41 am: I don't think he wants scanlines but just 1 to 1 pixel mapping.
Title: Re: Question about Atari Lynx in UME
Post by: mamenewb100 on August 13, 2013, 02:08:45 pm: Quote from: cools on August 13, 2013, 03:56:42 am
I don't recall seeing scanlines on my Lynx at any point.

Yes but when you blow up the screen 6x it's original size, it looks like a pixelated mess. It wasn't made to be played on a screen that big. Scan lines help cover up the rough edges and make the picture much better.
Title: Re: Question about Atari Lynx in UME
Post by: mamenewb100 on August 31, 2013, 09:15:44 am: Just to update on this I found the Linux version of Mednafen does this perfectly. It has a scanline option that looks identical to real scanlines. It can also display things in a smaller window so Portable systems stay closer to their original screen ratio but also large enough to see.

Windows version of mednafen doesn't even run for me in win XP or win7 even. after downloading recommended files. :dunno But Mednafen is perfect for the lesser known systems and portables. Almost flawless emulation.