Hacking Emulation RetroArch/Libretro Thread: PS Vita Edition! Nightlies Included

Zukov · Aug 1, 2017

cvskid said:
Had 2 questions. On retroarch ps vita is it possible to use L2 and R2 buttons for the rear touchpad for games outside of the ps1 emulators if you have a grip that has those buttons?

Also i saw a netplay option so wanted to know if that worked or not as i am not sure how to set it up.

About the netplay: do a search in this thread. It was talked.
About L2&R2, Quick Menu -> Controls -> Configure as you wish.

cvskid · Aug 1, 2017

Zukov said:
About the netplay: do a search in this thread. It was talked.
About L2&R2, Quick Menu -> Controls -> Configure as you wish.

Thank you, that helped alot.

Rokon2 · Aug 1, 2017

Thank you very much for clarifying a little bit more on RetroArch, I haven't invested too much time into the Vita scene, and I generally try to read up on everything before I start bugging people for information.

cvskid · Aug 1, 2017

Figured out a way to get the pspemu folder to show up in retroarch but it is a bit time consuming. Connect your ps vita to your pc through vitashell, i used usb. Make a backup of the entire pspemu folder with everything in it and then delete the pspemu folder from the ps vita memorycard. Then make a new pspemu folder and make new folders for all of the folders you have emulators and roms for and copy everything into those new folders. That way the pspemu folder won't be considered hidden anymore and retroatch can read it.

Zukov · Aug 1, 2017

cvskid said:
Figured out a way to get the pspemu folder to show up in retroarch but it is a bit time consuming. Connect your ps vita to your pc through vitashell, i used usb. Make a backup of the entire pspemu folder with everything in it and then delete the pspemu folder from the ps vita memorycard. Then make a new pspemu folder and make new folders for all of the folders you have emulators and roms for and copy everything into those new folders. That way the pspemu folder won't be considered hidden anymore and retroatch can read it.

And Adrenaline works?
So... the PC gives special permissions to pspemu folder, that way RA thinks it is a safe folder? How on Earth this has any sense? If this is true, then a virus could create false folders with false roms, then RA would infect the Vita.

cvskid · Aug 1, 2017

Zukov said:
And Adrenaline works?
So... the PC gives special permissions to pspemu folder, that way RA thinks it is a safe folder? How on Earth this has any sense? If this is true, then a virus could create false folders with false roms, then RA would infect the Vita.

Adrenaline is working fine for me. For me on pc when i access the folders some folders are transparent like the pspemu folder and when you go to the properties section on those types of folders, it's impossible to uncheck the box "hidden", so i made a backup of everything in the folder, deleted the hidden folder, and made a new one. That way when i copied everything back i could access it in retroarch. The pspemu folder acts like the windows folder on pc, hidden.

Hope that made sense somewhat.

SeongGino · Aug 2, 2017

cvskid said:
Had 2 questions. On retroarch ps vita is it possible to use L2 and R2 buttons for the rear touchpad for games outside of the ps1 emulators if you have a grip that has those buttons?

Also i saw a netplay option so wanted to know if that worked or not as i am not sure how to set it up.

1) The L/R2 buttons are mapped to the top two corners of the active touch screen; L/R3 are bottom corners. By default, the active touch screen is set to the front touch panel for all inputs. This is dictated by Main Menu -> Settings -> Input -> Prefer Front Touch. On = Front touch panel, Off = Back touch panel. So, if you set it accordingly; yes, you can use grips fine. Be warned; this cannot be mixed 'n matched (I.E. Front is L/R2, back is L/R3), nor can touch virtual buttons be mapped to hotkeys.

2) For the sake of simplicity, it only works with other Vitas (I THINK both host and guests need to be using the same architecture, I.E. ARM/x86, etc...). The XMB frontend's separate "Netplay Tab" is iffy at best; you're better off connecting via Main Menu -> Netplay.

--------------------- MERGED ---------------------------

Zukov said:
So... the PC gives special permissions to pspemu folder, that way RA thinks it is a safe folder? How on Earth this has any sense?

If I'm to guess how this works, it's less you're giving special permissions to the folder for it to be unhidden, than it is you're actually taking away special permissions that dictate its system folder status; you effectively are turning the folder from a system-created one (hidden by "safe homebrew") into a user-created one (readable/writable by "safe homebrew"). And since all the system wants is a plain valid directory called "pspemu", it makes no difference to the pspemu/Adrenaline; hence why it works.

cvskid · Aug 2, 2017

SeongGino said:
1) The L/R2 buttons are mapped to the top two corners of the active touch screen; L/R3 are bottom corners. By default, the active touch screen is set to the front touch panel for all inputs. This is dictated by Main Menu -> Settings -> Input -> Prefer Front Touch. On = Front touch panel, Off = Back touch panel. So, if you set it accordingly; yes, you can use grips fine. Be warned; this cannot be mixed 'n matched (I.E. Front is L/R2, back is L/R3), nor can touch virtual buttons be mapped to hotkeys.

2) For the sake of simplicity, it only works with other Vitas (I THINK both host and guests need to be using the same architecture, I.E. ARM/x86, etc...). The XMB frontend's separate "Netplay Tab" is iffy at best; you're better off connecting via Main Menu -> Netplay.

--------------------- MERGED ---------------------------

If I'm to guess how this works, it's less you're giving special permissions to the folder for it to be unhidden, than it is you're actually taking away special permissions that dictate its system folder status; you effectively are turning the folder from a system-created one (hidden by "safe homebrew") into a user-created one (readable/writable by "safe homebrew"). And since all the system wants is a plain valid directory called "pspemu", it makes no difference to the pspemu/Adrenaline; hence why it works.

Awesome. Thank you for the help.

Zukov · Aug 2, 2017

cvskid said:
If I'm to guess how this works, it's less you're giving special permissions to the folder for it to be unhidden, than it is you're actually taking away special permissions that dictate its system folder status; you effectively are turning the folder from a system-created one (hidden by "safe homebrew") into a user-created one (readable/writable by "safe homebrew"). And since all the system wants is a plain valid directory called "pspemu", it makes no difference to the pspemu/Adrenaline; hence why it works.

It's quite a clever hack. I wanted this so bad to test both emus.

P. D. : don't know why my cellphone fucks the quotes

SeongGino · Aug 2, 2017

Zukov said:
It's quite a clever hack. I wanted this so bad to test both emus.

Well, now you know!

isoboy · Aug 3, 2017

I installed the all-in-one pack for two of my vitas now but can't select cores when I pick a rom. Anyone remember how that worked? No problem on my main Vita.

SeongGino · Aug 3, 2017

isoboy said:
I installed the all-in-one pack for two of my vitas now but can't select cores when I pick a rom. Anyone remember how that worked? No problem on my main Vita.

Simply select Load Content on the Main Menu. If there's more than one core option for you to pick for the format, it'll ask when you select a ROM. Otherwise, it'll load the default core for the respective format.

isoboy · Aug 3, 2017

I know but that didn't work. I looked over the directories on my main console and fixed it though.

elrayo · Aug 3, 2017

Guys does someone know if O'clock Vita can improve the retroarch emulation? And where can I download that plugin?

Kerbangman · Aug 3, 2017

elrayo said:
Guys does someone know if O'clock Vita can improve the retroarch emulation? And where can I download that plugin?

No it only effects Vita games

Rokon2 · Aug 4, 2017

I'm a little bit confused. Is the All-In-One package the RAR file you get from the "(Click me to download now!)"? I have a RAR file, but how would I go about extracting this via VitaShell/molecularShell?

SeongGino · Aug 4, 2017

Rokon2 said:
I'm a little bit confused. Is the All-In-One package the RAR file you get from the "(Click me to download now!)"? I have a RAR file, but how would I go about extracting this via VitaShell/molecularShell?

If you looked at the quote underneath (Where I list all the cores, their filenames, and what they are), you'll find "retroarch.vpk" is (what I dubbed) the All-In-One package.
Simply unzip the RAR file anywhere on a PC -- preferably a folder on your desktop -- and either transfer the cores you want, or the All-In-One package only to your Vita via FTP and install it like a normal homebrew. I make a point of this because the cores by themselves take up more space than other RetroArch/Libretro ports (~5mb per 3DS core, vs. ~50mb per Vita core).

sebbydaman · Aug 4, 2017

does it take long to install vpk ?? had it go as low as 5 kb/s while installing ten it shoots up

sebbydaman · Aug 4, 2017

another thing is I downloaded the bios and when I click on a game ( megaman x 4) it says playtation bios not found but it still plays the game .

MKKhanzo · Aug 4, 2017

SeongGino said:
If you looked at the quote underneath (Where I list all the cores, their filenames, and what they are), you'll find "retroarch.vpk" is (what I dubbed) the All-In-One package.
Simply unzip the RAR file anywhere on a PC -- preferably a folder on your desktop -- and either transfer the cores you want, or the All-In-One package only to your Vita via FTP and install it like a normal homebrew. I make a point of this because the cores by themselves take up more space than other RetroArch/Libretro ports (~5mb per 3DS core, vs. ~50mb per Vita core).

Noob question. Can I mix 1.63 cores with 1.42? BUT using the all in one? I dont know why 1.63 runs all choppy on me, but VBA really is good on this one.

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