Main > Monitor/Video Forum
Powerstrip writeup
Silver:
Yes try submitting to same info to Powermame author MikeQ....
wpcmame:
Aaron seems to have implemented correct aspect ratio handling in the new video system.
(He even fixed the artwork aspect)
Tested some corner cases and they all seem to work fine. Only problem is that the bitmap is assumed to fill the entire monitor (or at least have the same aspect ratio).
Only matters if you use modes that doesn't fill the monitor (e.g. 224 line modes on a monitor adjusted for 240 lines). If necessary this can be fixed by adjusting the screen aspect parameter.
Silver:
Ah that is good news.... I've steered clear until the huge rewrite settles down, though this has been quite an interesting one....
Incidentally, not sure I posted this elsewhere, I had email exchange with the admin at the Powerstrip forums and discovered that there is (was) a hard-coded 10Mhz pixelclock floor. Any custom resolution generated which had a lower pclock would not be enforced as described (and in my case caused Powerstrip to act very slow, like it was hanging). I had assumed this because the pclock was too low for my gfx card (radeon 9500).
However, he changed the floor to 5Mhz in a beta, and I found I could create more 'perfect' non-interlaced resolutions without any problems. Such as 321x240 (320x240 is always "doublescanned" - I've never found a way round this).
He then changed it (on request) to something lower than 5Meg - around 4.5 or 4.75Mhz I think - so I could test 240x224. However this particular setting (240x224=240,8,40,16,224,4,3,31,4779,7) was beyond my gfx card.
The low pclock floor should be in all betas of powerstrip since Mid april.
wpcmame:
--- Quote from: Silver on June 02, 2006, 06:05:13 am ---Ah that is good news.... I've steered clear until the huge rewrite settles down, though this has been quite an interesting one....
--- End quote ---
I was a bit to fast. The new system does aspect ratio correctly but the cleanstretch option is removed. This means that the image will always be stretch to fill the entire width and/or height. Makes 224 line games look really bad.
Lets hope Aaron adds the cleanstretch option again.
Silver:
surely that breaks the aspect ratio? If a game is native 320x240 and displayed at 640x480 on a 640x480 screen, thats fine. But if a game is 320x224, then it should be displayed at 640x448 on a 640x480 screen. (With borders).
Or am I missing the point again? Does the Maintain_aspect switch still exist?
Or is this a problem that a 224 line game actually ouputted a 240line screen and the monitor was simply stretched/overscanned to provide a good picture in the original arcade?