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Author Topic: Overscan  (Read 11942 times)

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Mia

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Overscan
« on: November 05, 2016, 10:40:26 AM »
I can make a 704 x 280 PAL overscan screen, but in AMOS the NTSC overscanned screen seems to max at 704 x 248 - 240 is standard NTSC so I'm a bit confused and probably missing something regarding NTSC - also I would like to get it to 724 but it cuts the display.

in fs-use NTSC @ 60hz is graphically smoother so I've started to use it, but found the smaller vertical a problem and don't want to change the display until I work out if something is wrong - any ideas?

Thanks
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SamuraiCrow

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Re: Overscan
« Reply #1 on: November 06, 2016, 12:50:34 AM »
Is your machine NTSC?  If so, using a PAL booter may help it to recognize the screenmode.
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Xertese

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Re: Overscan
« Reply #2 on: November 06, 2016, 07:55:39 AM »
When working the width X dimension of your screen you can only multiply it by units of 16 the height Y dimension however can be any number of pixels you like
16 does not go into 724
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Mia

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Re: Overscan
« Reply #3 on: November 08, 2016, 06:39:39 PM »
Quote from: Mia on November 05, 2016, 10:40:26 AM
240 is standard NTSC

thanks for the replies, but um, ooops, no it's not, apparently it's 200 horizontal for ntsc, so overscan is working at about 241. http://amiga.lychesis.net/knowledge/ScreenModes.html


actually, this just tells me I need a real amiga if I want smooth graphics again...
« Last Edit: November 08, 2016, 06:53:34 PM by Mia »
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SamuraiCrow

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Re: Overscan
« Reply #4 on: November 08, 2016, 06:42:42 PM »
200 vertical, you mean?
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Mia

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Re: Overscan
« Reply #5 on: November 08, 2016, 06:54:22 PM »
Quote from: SamuraiCrow on November 08, 2016, 06:42:42 PM
200 vertical, you mean?

lol yeh, maybe I do a popup screen for it :-)
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Mia

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Re: Overscan
« Reply #6 on: November 08, 2016, 06:58:53 PM »
The new oscilloscope is much smoother in ntsc as the fps matches the graphics card:

I'm open to suggestions of what to do - there are missing buttons at the bottom...
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Hungry Horace

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Re: Overscan
« Reply #7 on: November 09, 2016, 07:46:20 AM »
reduce the button border and the slider height if NTSC is detected?
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Mia

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Re: Overscan
« Reply #8 on: November 09, 2016, 08:31:31 PM »
Quote from: Hungry Horace on November 09, 2016, 07:46:20 AM
reduce the button border and the slider height if NTSC is detected?
hadn't thought of that, thanks, I changed the buttons to be 11px and it all fits.
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Xertese

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Re: Overscan
« Reply #9 on: November 12, 2016, 04:14:20 PM »
Guess thats me done then.
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Mia

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Re: Overscan
« Reply #10 on: November 13, 2016, 07:48:51 PM »
Quote from: Xertese on November 12, 2016, 04:14:20 PM
Guess thats me done then.

maybe not  ;-) - do you know how to get larger than 704 out of AMOS?
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Xertese

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Re: Overscan
« Reply #11 on: November 14, 2016, 05:40:47 AM »
Quote from: Mia on November 13, 2016, 07:48:51 PM
Quote from: Xertese on November 12, 2016, 04:14:20 PM
Guess thats me done then.

maybe not  ;-) - do you know how to get larger than 704 out of AMOS?

Resolution or Screen Size?
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Mia

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Re: Overscan
« Reply #12 on: November 16, 2016, 07:33:51 PM »
Quote from: Xertese on November 14, 2016, 05:40:47 AM
Resolution or Screen Size?

Looking at the Resolution - I've set the default screen and editor screen to be 704 by 280 so it is in "overscan" - fs-uae will auto zoom so it looks fine but there are extra pixels available up to 752 by 286 shown for the screen mode...


UPDATE:
in Editor_Config.AMOS I tweaked the XDI variable, the Limit Mouse settings, and Screen Display and MAXX variables - I got it up to 736, but there was a little chopped off on the right. I could send the screen position much further to the left but then the mouse would disappear - I think it's a hard coded limitation - somewhere in the amos.library source?
« Last Edit: November 16, 2016, 08:44:27 PM by Mia »
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Xertese

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Re: Overscan
« Reply #13 on: November 25, 2016, 07:17:51 PM »
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Lonewolf10

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Re: Overscan
« Reply #14 on: November 26, 2016, 06:08:08 PM »
Quote from: Xertese on November 25, 2016, 07:17:51 PM
Please refer to my site archive

www.ultimateamosproguide.co.uk/index.php/page,1

Out of curiosity I tried the link, but couldn't get it to work. Firefox 3 displays an error and claims it can't find the server. I also tried pinging the site, but still couldn't find it. Are you sure the domain name is correct??
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