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groovymame and midway/mk games screen centering on TV.

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Calamity:

--- Quote from: oliver on April 25, 2012, 05:40:22 pm ----crt_emudriver, vmmaker and mame (not groovymame where it shows cut image at top and bottom).

--- End quote ---

Which video mode does MAME (not groovymame) pick here? Get it from the log and try it with Arcade_OSD to check if it shows full screen.

oliver:
here is the log for regular mame, using crt_emudriver and vmmaker:
I am not sure which one to choose, as the log reports:
DirectDraw: Mode selected =  400x 272@ 55Hz
DirectDraw: primary surface created: 400x272x32 (R=00FF0000 G=0000FF00 B=000000FF)
DirectDraw: New blit size = 399x253
DirectDraw: blit surface created: 399x253x32 (R=00FF0000 G=0000FF00 B=000000FF)

whereas, the mame output to the command prompts spits this towards the end:
DirectDraw: New blit size = 400x254
DirectDraw: primary surface created: 400x272x32 (R=00FF0000 G=0000FF00 B=000000F
F)
DirectDraw: blit surface created: 400x254x32 (R=00FF0000 G=0000FF00 B=000000FF)
Average speed: 100.24% (3 seconds)
Sound: buffer overflows=1 underflows=1

Calamity:
Ah, interesting, it's picking this one: 400x272@55

Also, try running: mame mk -resolution 400x256@59
(will probably be cut)

oliver:
yes, cut.

Paradroid:
So, what's going on here? At 59 Hz it's cut but at 55 Hz there's a full image? If that's the case, perhaps the TV is switching between PAL and NTSC mode automatically like the Loewes do...

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