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

quazimojo · Sep 28, 2016

My brother wants to play the real old classics like Stargate,Defender,Galaga,Galaxian,Pac-Man,Donkey Kong and Jr Robotron all those early 80s classics.

Would anyone of you know if MAME on Vita can replicate these games ?

Thank you

LibretroRetroArc · Sep 28, 2016

NoGood56er said:
What are the chances of PS1 games eventually running smooth with the forced high res mode on? Everything looks so much better with it turned on, but the games come to a crawl. I'd love to replay some games with it turned on, gives it a whole new feel. Street Fighter EX2 looks amazing with it.

Options like that are why I'm way more excited for Retroarch than unlocking the native PS1 emulator, which just makes everything look blurry.

I think we have our work cut out as is optimizing the current 'standard' mode.

The high-res modes are more meant for Android/iOS devices with powerful ARM CPUs. In high-resolution mode, we use a 1024x512 resolution. I don't think Vita will be able to handle that at fullspeed.

deathblade200 · Sep 28, 2016

Galick said:
I haven't heard of that bios before, try using SCPH1001.BIN or SCPH7003.BIN.

LibretroRetroArc said:
I think we have our work cut out as is optimizing the current 'standard' mode.

The high-res modes are more meant for Android/iOS devices with powerful ARM CPUs. In high-resolution mode, we use a 1024x512 resolution. I don't think Vita will be able to handle that at fullspeed.

just curious does the speedhack version of the hi-res even do anything? I always set it to on but don't really notice anything I know in the android version it was an alternative to opengl (or something along those lines) hi-res but just didn't look AS good

falaschi · Sep 29, 2016

new nightly (29-09) up and running. testing here XD

abelxcane · Sep 29, 2016

falaschi said:
new nightly (29-09) up and running. testing here XD

If you still need the zip I have some of them with the earliest being from 2016-09-13.

pralima87 · Sep 29, 2016

LibretroRetroArc said:
I think we have our work cut out as is optimizing the current 'standard' mode.

The high-res modes are more meant for Android/iOS devices with powerful ARM CPUs. In high-resolution mode, we use a 1024x512 resolution. I don't think Vita will be able to handle that at fullspeed.

Any plans for the "history" tab to start working?
And shaders

?

Jhyrachy · Sep 29, 2016

pralima87 said:
PopstationGUI is the best IMO. Really easy to setup.

Also not sure if people know this but you don't need to keep the file named EBOOT.PBP
Just rename it to the game proper name like "Castlevania - Symphony of the Night [NTSC-U].PBP"
Retro-arch reads the files just fine

wait, so retroarch psx core CAN read eboot.pbp made with popstation gui?

there is any compatibility problem?
Speed problem?

NoGood56er · Sep 29, 2016

LibretroRetroArc said:
I think we have our work cut out as is optimizing the current 'standard' mode.

The high-res modes are more meant for Android/iOS devices with powerful ARM CPUs. In high-resolution mode, we use a 1024x512 resolution. I don't think Vita will be able to handle that at fullspeed.

1024 x 512? doesn't that mean it's in 16:9 (or close to it) instead of 4:3? Just curious how that works. PS1 renders at 640x480 right?

Would a small performance boost be gained from rendering it at native vita resolution of 960x544 (or whatever the 4:3 equivalent is) and still get the same visual results?

falaschi · Sep 29, 2016

abelxcane said:
If you still need the zip I have some of them with the earliest being from 2016-09-13.

oh thanks! i need to know if gambatte and snes9x 2005 Works fine there. can u pass me that zip? thanks again

LibretroRetroArc · Sep 29, 2016

deathblade200 said:
just curious does the speedhack version of the hi-res even do anything? I always set it to on but don't really notice anything I know in the android version it was an alternative to opengl (or something along those lines) hi-res but just didn't look AS good

It doesn't do anything on high-res interlaced games like Tekken 3, Tobal 2, Ehrgeiz, etc. But it should work on everything else.

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

NoGood56er said:
1024 x 512? doesn't that mean it's in 16:9 (or close to it) instead of 4:3? Just curious how that works. PS1 renders at 640x480 right?

Would a small performance boost be gained from rendering it at native vita resolution of 960x544 (or whatever the 4:3 equivalent is) and still get the same visual results?

It has to be exact multiples of the original resolution or the NEON optimized rendering routines would break apart.

Right now 'enhanced resolution' means '4x original resolution'. It might be possible to do a '2x original resolution' option instead but it'd require many code edits to the ASM code.

abelxcane · Sep 29, 2016

falaschi said:
oh thanks! i need to know if gambatte and snes9x 2005 Works fine there. can u pass me that zip? thanks again

I sent you a message.

MKKhanzo · Sep 29, 2016

Oldie but goodie. @LibretroRetroArc I did not see the DCS Sound Speedhack option on MAME builds, but I remember it on the Wii old build (Mame 0.78 2003 I, even did a video about it). Any chance of enabling it on a newer build, and also, would it help on the speed of the MK arcade games?

EDIT: This was the vid.

LibretroRetroArc · Sep 29, 2016

MKKhanzo said:
Oldie but goodie. @LibretroRetroArc I did not see the DCS Sound Speedhack option on MAME builds, but I remember it on the Wii old build (Mame 0.78 2003 I, even did a video about it). Any chance of enabling it on a bewer build, and also, would it help on the speed of the MK arcade games?

EDIT: This was the vid.

That's MAME 2003 core.

pralima87 · Sep 29, 2016

Jhyrachy said:
wait, so retroarch psx core CAN read eboot.pbp made with popstation gui?

there is any compatibility problem?
Speed problem?

yep.
I'm using it since my early retroarch days on my iphone.
works fine 100% compression 9

falaschi · Sep 29, 2016

abelxcane said:
I sent you a message.

it Works perfect bro! i really appreciate it! thank you very much! now im gonna test the pcsx from todays nightly!

abelxcane · Sep 29, 2016

falaschi said:
it Works perfect bro! i really appreciate it! thank you very much! now im gonna test the pcsx from todays nightly!

Thats cool have fun.

Patodox · Sep 29, 2016

Is there a way in pcsx_rearmed to configure some games to not use the BIOS?
I'm using the 09-29 nightly, and the 7001 bios (tested 5501 and 1001),
-Gran Turismo works fine (in 09-28 crashes)
- in Legend of Mana the buttons are not recognized when using a BIOS. Without a BIOS, works great.

Joe007 · Sep 29, 2016

Does popstation work with multiple disc games? and if so is the process the same.

falaschi · Sep 29, 2016

is there any way to set no sprite limit in gambatte? like we do in fceumm? some sprites dissapear or flicker in gambatte

ArugulaZ · Sep 29, 2016

quazimojo said:
My brother wants to play the real old classics like Stargate,Defender,Galaga,Galaxian,Pac-Man,Donkey Kong and Jr Robotron all those early 80s classics.

Would anyone of you know if MAME on Vita can replicate these games ?

Thank you

MAME 2000 is your best bet for those. You need ROMs for the 37.5 version of MAME, and of course, I can't link you to any of them. However, you might be able to turn up something with a search on Archive dot org.

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