Gameboy interface not filling screen

[leewrigley]

I have just finally received my sd media launcher for my GameCube in order to run Swiss and the Gameboy interface. I am using the high fidelity for ossc- optimised mode that comes with the gBI software. I have seen online that by using this mode and using 384p X3 mode it should be an exact 1080p screen fill almost. I am using these modes and although it fills a lot more of the screen than it would using the standard high fidelity mode, I still have fairly large bezels on all 4 sides of the picture.

Can someone maybe talk me through how to properly change the settings on both the ossc- and the gBI to properly achieve this, I am using a pal GameCube using RGB into the ossc-. Thanks for the help.

[Harrumph]

Gameboy Advance has 160 vertical lines. In HD60 mode (what GBI HF-OSSC uses) this is doubled internally to 320 in a 360 height frame. Then using 384p x3 mode on OSSC this is tripled to 960 in a 1080 height frame (i.e. total scaling is x6). So there is naturally always black bars on top/bottom (and sides), preserving original aspect (3:2) with maximum integer scale.

However, if you are running GB/GBC games, it has only 144 vertical lines. So end result is 6×144 = 864 vertical lines.

If you absolutely wish the game area to entirely fill the vertical space, you can try to reduce V.Active area on the OSSC so that your display will scale the last bit. But this may not be compatible with your display.

[leewrigley]

Thanks for clearing that up, probably should have done the maths myself, I’m perfectly happy with borders around my games as long as it’s pixel perfect I don’t really care about the size I was only asking I had seen people online saying it was a perfect 1080p scale so I was a little confused. Anyway, thanks

[Author]

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[leewrigley]

I have just finally received my sd media launcher for my GameCube in order to run Swiss and the Gameboy interface. I am using the high fidelity for ossc- optimised mode that comes with the gBI software. I have seen online that by using this mode and using 384p X3 mode it should be an exact 1080p screen fill almost. I am using these modes and although it fills a lot more of the screen than it would using the standard high fidelity mode, I still have fairly large bezels on all 4 sides of the picture.

Can someone maybe talk me through how to properly change the settings on both the ossc- and the gBI to properly achieve this, I am using a pal GameCube using RGB into the ossc-. Thanks for the help.

[Harrumph]

Gameboy Advance has 160 vertical lines. In HD60 mode (what GBI HF-OSSC uses) this is doubled internally to 320 in a 360 height frame. Then using 384p x3 mode on OSSC this is tripled to 960 in a 1080 height frame (i.e. total scaling is x6). So there is naturally always black bars on top/bottom (and sides), preserving original aspect (3:2) with maximum integer scale.

However, if you are running GB/GBC games, it has only 144 vertical lines. So end result is 6×144 = 864 vertical lines.

If you absolutely wish the game area to entirely fill the vertical space, you can try to reduce V.Active area on the OSSC so that your display will scale the last bit. But this may not be compatible with your display.

[leewrigley]

Thanks for clearing that up, probably should have done the maths myself, I’m perfectly happy with borders around my games as long as it’s pixel perfect I don’t really care about the size I was only asking I had seen people online saying it was a perfect 1080p scale so I was a little confused. Anyway, thanks

[Author]

Posts