Homebrew OPEN_AGB_FIRM discussion thread

Rj.MoG · Dec 9, 2020

fmkid said:
You need to have either fastboot3ds or GodMode9 installed on FIRM0, instead of typical boot9strap.

Please, take off the SD card from the console and boot it while pressing the HOME button. If fastboot3ds menu isn't shown then you should install it, following this tutorial:
https://gbatemp.net/threads/updating-from-b9s-to-fastboot3ds.494773/

Stellar said:
Is gm9 your firm0 or are you chain loading from b9s?

It's godmode9. I took my SD card out and checked. I dont know why this doesn't work but I'd rather keep my setup as is since it functions fine besides this one application. I just have to load the payload at boot to play GBA games which is fine. But thank you both for trying to help

DualBladedKirito · Dec 14, 2020

The latest commits add a config.ini to sd:/3ds/open_agb_firm. It adds some changeable settings like bios intro, brightness and gamma. I don't have a means of compiling it to try it out. But thought I'd post here for someone who can.

TheToaster · Dec 25, 2020

Can I upgrade this app using Universal Updater? Does Universal Updater grab the latest .firm from the repo and automatically add it to the payloads folder under Luma, or do I have to download the .firm manually from the repo to update OPEN_AGB_FIRM?

justjack · Dec 25, 2020

Oh wow, new release yesterday!

Rahkeesh · Dec 27, 2020

For reference, max backlight setting appears to be 64, anything higher will give you black screens. edit: this doesn't seem to match the actual max backlight on 3DS, VC still can go brighter.
Output gamma is how the colors appear more saturated by default on the washed-out 3DS screens. 2.2 is no change (i.e. same as VC without dark filter), lowering from there will increase apparent saturation at the risk of black crush.

ghjfdtg · Dec 27, 2020

The LCD panels used on all 2/3DS models don't seem to be calibrated at all. It's pretty hard to find settings that work great for all of them. And it looks like the way this works is by using a 8 bit-per-color lookup table on the 3DS side. So there is some risk for color banding.

Isegrim · Dec 27, 2020

The colors are great out of the box in my opinion. The brightness either.

Way better than mGBA. it looks better, more crisp in general with this firm.

kane159 · Dec 27, 2020

very perfect bro, a little quick question how can i play games on native gba res?

Stellar · Dec 28, 2020

Is there a community save type db file somewhere? I'd rather add to it than start over.

SerjTargarien · Jan 14, 2021

I see 1:1 scale support has been added to the repo. Time to start biting my nails again until it releases publicly.

Deleted member 323844 · Jan 14, 2021

Great! I will compile it later.

Edit: SCALE 0 (240x160 no scaling, no filter). Unfortunately the display is cropped/corrupted.

https://femto.pw/u8sh

I could have done something wrong.

SerjTargarien · Jan 14, 2021

Yes, just tested it to confirm, the display is definitely corrupted. Maybe there's some more work to do before it works.

Thanks for compiling it!

Deleted member 323844 · Jan 14, 2021

SerjTargarien said:
Yes, just tested it to confirm, the display is definitely corrupted. Maybe there's some more work to do before it works.

Thanks for compiling it!

profi200 explanation.

It is [fully implemented], but it's not a simple one line edit. The hardcoded GPU cmd lists and the hardcoded DMA code is what prevents me from adding a scale option to the config. It's kinda annoying not having a citro3d port and a DMA JIT to get rid of that problem. I will see if i can somehow make this work via a compile time define.

SerjTargarien · Jan 14, 2021

Thanks for the heads up. Wish I could help but I lack the knowledge. I'm sure profi200 will eventually figure it out.

ghjfdtg · Jan 14, 2021

Fwiw he linked a build with the proper changes to make 1:1 work.

DualBladedKirito · Jan 14, 2021

ghjfdtg said:
Fwiw he linked a build with the proper changes to make 1:1 work.

Is there a possibility of getting a fullscreen build with a biliniar filter applied?

Deleted member 323844 · Jan 14, 2021

Yes

DualBladedKirito said:
Is there a possibility of getting a build with a bilingual filter applied?

Bilingual interpolation

1:1 is already producing raw GBA pixels. Why would you want to blur the image?

SerjTargarien · Jan 15, 2021

I just compiled it with 1:1 scaling. Working perfectly.

P.S.: If I'm not allowed to upload it here for some rule I'm not aware of I'll gladly take it down. Just wanted to share it with anyone interested.

Mikef1 · Jan 28, 2021

The games I've tried have problems while saving when they are type Eeprom.
Sram and Flash saves seem ok.
Any progress on the eeprom saves issue?

Doomguy · Feb 2, 2021

This might be a silly question, but will this ever support some type of borders, similar to the 3DS VC? Or is this just bare metal GBA mode access?

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