MAMEDEV Forum

Hello, everyone.

I'm trying to configure MAME to quadruple the source resolution of my Fairchild Channel F games, so the CRT filter looks right (the original console did this). I can't seem to get it to happen, though.

What's the right way to accomplish this?

Atario wrote: ↑Sat Jun 12, 2021 7:52 pm I'm trying to configure MAME to quadruple the source resolution of my Fairchild Channel F games, so the CRT filter looks right (the original console did this). I can't seem to get it to happen, though.

What's the right way to accomplish this?

The channelf driver is currently outputting a video resolution of 102x58 which is not correct. The actual hardware duplicates pixels on the x-axis and repeats each scanline 4 times (5 for PAL) in the y-axis to produce an output of 204x232.

The emulation needs updating to produce the correct resolution.

Pernod wrote: ↑Sat Jun 19, 2021 11:52 am The channelf driver is currently outputting a video resolution of 102x58 which is not correct. The actual hardware duplicates pixels on the x-axis and repeats each scanline 4 times (5 for PAL) in the y-axis to produce an output of 204x232.

The emulation needs updating to produce the correct resolution.

Should I file a bug ticket?

Atario wrote: ↑Sat Jun 19, 2021 1:46 pm Should I file a bug ticket?

Yes, it should be logged as a bug, though there's a chance I may have time to look at it before next release.

Pernod wrote: ↑Sat Jun 19, 2021 7:55 pm Yes, it should be logged as a bug, though there's a chance I may have time to look at it before next release.

Bug logged!

https://mametesters.org/view.php?id=8012

(deleted)

Robert wrote: ↑Sun Jun 27, 2021 11:50 amProblem fixed !!