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the atari ST screen resolution

Posted: Fri Mar 09, 2012 10:41 am
by FedePede04
Hi
i don't know if this is the right forum, feel free to move it.

I have a question.

what was atari screen resolution when you removed the 4 screen borders in low res.
could the borders also be remove for mid res and high res. if yes what was the resolution in mid and high res.

Best Regards
Peter

Re: the atari ST screen resolution

Posted: Fri Mar 09, 2012 2:29 pm
by exxos
I'm not totally sure, but I think you got about 30px on vertical, maybe extra 50 or so left and right ? I have not seen this done in any other res, not sure if it can be done, maybe someone else here can help you better.

Though its not a simple removal of borders, it switched between 50hz and 60hz constantly to get the bottom border removed, but this takes up a lot of CPU time. I assume it has not been done in med res as there are more pixels at work so its possible the CPU just isn't fast enough. I think removing all the borders will take up most of the CPU time anyway.

In anycase, the more borders you "remove" the more cpu time it will take, You end up with very little CPU time after a full removal. HTH.

Re: the atari ST screen resolution

Posted: Fri Mar 09, 2012 2:50 pm
by Cyprian
as far as I remember it was 416 x 276 for ST LOW

Re: the atari ST screen resolution

Posted: Fri Mar 09, 2012 4:24 pm
by FedePede04
Thanks guys.

i think that i have found another way to skin the cat.

The thing is that i am thinking of making a drawing program for the Atari, but on the PC.
so insted of a fixed resolution for the no border mode, i think i will make it, so you can chose a custom screen size.

but thanks again.
Best Regards
Peter

Re: the atari ST screen resolution

Posted: Fri Mar 09, 2012 5:08 pm
by Cyprian
try GraphFx2 on pc or atari

Re: the atari ST screen resolution

Posted: Fri Mar 09, 2012 7:44 pm
by FedePede04
Cyprian_K wrote:try GraphFx2 on pc or atari


i try it a couple of years ago, there were some things that I did not like. it was something with palettes, and some other small things.
i also think that the program missing some features.

but thanks for the heads up :cheers:
Best Regards
Peter