New gpsp update fixes stuttering with GBA emulation on PS Vita, offers major performance increase

leonmagnus99 · Nov 11, 2019

Rahkeesh said:
Here's a comparison of FFVI run on mGBA versus gpsp via Adrenaline. The crappy sound performance on mGBA is simply because the game is running too slowly as you can see from the FPS counter. You can also see how even at the lower PSP level clocks, performance on adrenaline gpsp is vastly superior thanks to a dynarec plus some hacks.

This release is a big deal because now you don't have to boot into adrenaline to enjoy GBA games at fullspeed and can take advantage of the Vita's full resolution for better scaling. Hopefully you can also play most of the library at fullspeed without needing to mess with various hack tweaks and forks as with adrenaline gpsp.

perfect, now to wait for the gpsp core!!!

Clydefrosch · Nov 12, 2019

Pickle_Rick said:
No offense, but considering the PS1 core doesn't crash and the gpSP core doesn't crash on any other platform, I'm going to call bs on that one. It's an issue with the 3DS build specifically. Also I'd like to point out that it used to work fine before.

And sleep mode.

Yes, it's an issue with the 3ds port and within that, the dynarec.
The guy who ported it is long gone, noone else wants to dive in and spend 3 years figuring out what's wrong, especially with vc being an option.

Not sure what before you're talking about, but this has been an issue since before ra 1.3

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leonmagnus99 said:
perfect, now to wait for the gpsp core!!!

Yesterday's nightly build has the fixed core already.

leonmagnus99 · Nov 14, 2019

Clydefrosch said:
Yesterday's nightly build has the fixed core already.

is there the core vpk for vita in it c: ?

Clydefrosch · Nov 14, 2019

leonmagnus99 said:
is there the core vpk for vita in it c: ?

http://buildbot.libretro.com/nightly/playstation/vita/

leonmagnus99 · Nov 14, 2019

Clydefrosch said:
http://buildbot.libretro.com/nightly/playstation/vita/

arigato gozaimasu ,thx and danke mein freund.
@Clydefrosch any chance i can use my previous save states? c:
they are in .sav/svs format , and I'll miss the blue themed gpsp XD

but if i get to play full speed gba straight off the menu it's cool.

and the other thing is, i installed the full vpk of that retroarch zip, can i create a core of gpsp within the retroarch emulator ? thanks in advance.

Clydefrosch · Nov 14, 2019

leonmagnus99 said:
arigato gozaimasu ,thx and danke mein freund.
@Clydefrosch any chance i can use my previous save states? c:
they are in .sav/svs format , and I'll miss the blue themed gpsp XD

but if i get to play full speed gba straight off the menu it's cool.

and the other thing is, i installed the full vpk of that retroarch zip, can i create a core of gpsp within the retroarch emulator ? thanks in advance.

Ah, i forgot to mention, you also need to download the data file and move the RetroArch folder inside the downloaded data archive to PS Vita data directory.

i don't think gpsp .sav files are compatible with other emulators .sav files. you can try copying them into the corresponding folders in /data/retroarch/ system/savefiles and /savestates (those might actually be in a location, i moved mine around a bit i think) and see how it goes from there.
if you mean from psp gpsp, it might work though.

I'm not sure what you mean by creating a core in the retroarch emulator. the gpsp core is part of the retroarch installation. if you try to open a gba game, it (and vba-next) should be presented as options for you to chose.

leonmagnus99 · Nov 14, 2019

Clydefrosch said:
need to download the data file and move the RetroArch folder inside the downloaded data archive to PS Vita data directory

i downloaded that and got retroarch folder , i put "retroarch" into the root of ux0

am i supposed to move it elsewhere?
and regarding the core, i mean like having retroarch always boot with gpsp as core like as base because that's the only emulator i would like to use.

and yes my saves are from gpsp (from adrenalines psp).
hopefully they work.

Clydefrosch · Nov 14, 2019

leonmagnus99 said:
i downloaded that and got retroarch folder , i put "retroarch" into the root of ux0

am i supposed to move it elsewhere?
and regarding the core, i mean like having retroarch always boot with gpsp as core like as base because that's the only emulator i would like to use.

and yes my saves are from gpsp (from adrenalines psp).
hopefully they work.

i believe it expects the files to be in the data folder.

and no, i thing on vita, retroarch can't load a core like that. but if you only open content and go to your gba games, it wont load any others either

leonmagnus99 · Nov 15, 2019

Clydefrosch said:
i believe it expects the files to be in the data folder.

and no, i thing on vita, retroarch can't load a core like that. but if you only open content and go to your gba games, it wont load any others either

okay so i must copy the content of that retroarch data zip into ux0/data/here?

Clydefrosch · Nov 15, 2019

leonmagnus99 said:
okay so i must copy the content of that retroarch data zip into ux0/data/here?

There should be a retroarch folder in there, you should merge those folders.

leonmagnus99 · Nov 15, 2019

Clydefrosch said:
There should be a retroarch folder in there, you should merge those folders.

gotcha thanks bruv =)

@Clydefrosch and look here this is what i mean with standalone vpk

https://www.reddit.com/r/vitahacks/...amp&utm_medium=&utm_content=comments_view_all

is there a vpk for the fixed gpsp? let me know if you find it!!!

i think i found it for anyone that's interested in single cores check on last page of thread gpsp fixed is up there!

https://gbatemp.net/threads/retroar...ta-edition-nightlies-included.437034/page-206

Pickle_Rick · Dec 3, 2019

Clydefrosch said:
Not sure what before you're talking about, but this has been an issue since before ra 1.3

Shortly after the first couple of builds there were ones with proper screen scaling and working gpsp. It doesn't run right after 9.x.

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