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Curiosity: AVGA resolution for specific games

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Aurich:
You can't run Pac-Man natively on your setup, you have a horizontal monitor. So just use what looks good, there is no "authentic" solution for you.

shorthair:
I think Ray was just razzin ya there.  It does appear, though, that there is some tweaking in order to get all you can out of the avga.  I'm a little eager to see, myself.

Aurich: I notice in Mame that when I click 'switch res' (of course, un-selecting 'stretch') that there are natural spaces top and bottom in vertical games. To me, it doesn't look much different, picture quality-wise, just slightly smaller.  Just depends on whether you want to fill the screen as much as possible.

Aurich:

--- Quote from: shorthair on March 29, 2007, 07:18:57 pm ---Aurich: I notice in Mame that when I click 'switch res' (of course, un-selecting 'stretch') that there are natural spaces top and bottom in vertical games. To me, it doesn't look much different, picture quality-wise, just slightly smaller.  Just depends on whether you want to fill the screen as much as possible.

--- End quote ---

I'm not saying you can't get it looking "arcade-like" but that's not "authentic". So all I'm saying is just do what looks good to you, there's no point in worrying about being accurate when you're running a vertical game on a horizontal monitor, it's not possible.

ahofle:
It's not authentic, but really the only thing that would be wrong is that the scanlines would be going the wrong way.  The correct number of horizontal lines and correct aspect ratio is what really makes the difference to me.
At any rate, I don't think this is a problem with the AVGA (all it does is provide built in low resolutions to choose from), but rather MAME.  There seem to be some discrepencies with auto resolution on vertical games IMO.  It seems to happen mostly when MAME chooses a 'square' resolution (same number of horizontal and vertical lines).  Of course your monitor is not square so it gets confused maybe -- it picks the appropriate resolution, but it's using too many vertical lines (all 256 vs 224).  I think sometimes it gets confused with the aspect ratio of your monitor or something.  Have you tried forcing the aspect ratio to 4:3 so it doesn't take up the whole screen sides?

I would suggest posting in the mame.net forums with your pictures to see what they say, but they usually aren't too interested in ddraw issues.  Now that we know Aaron has a MAME cabinet in the works, I think we should all pitch in a get him an arcade monitor so he has some motivation to perfect the ddraw/nohwstretch/switchres video stuff.  ;D

AMDman13:
I am using the AVGA2 with a Betson Multisync and I have always used either mamewah's mame_res_tool or Benson's ArcadeVgaRes to auto write the INI files for all of my roms. However, I have never been able to find any resolution that looks decent for vertical games. I've been running all verts at 640x480 and using -hwstretch.

I'm going to try the above res manually for PacMan tonight and see how it looks.

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