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After finding out on another topic about a program today called NoMone Resolution changer I decided to put it to the test on PPSSPP.  The results speak for themselves.  If in doubt, check out the attached Youtube videos I made of Ridge Racer 2, Kingdom Hearts and Monster Hunter Freedom Unite.

Firstly, install the program from the Play store.  Open it and select a resolution of 480x272 (this is native PSP resolution so therefore the quickest.

Open up PPSSPP, set options as you would normally but have Non Buffered Rendering set and Frameskip at Zero.  Ive not messed with other settings yet as I've not had to.  A lot of games I've tested so far have worked at absolute full speed without slowdowns (S7800 @ 1.6ghz).

I believe the issue with PPSSPP and still continues to be is that even though it can run PSP games at 1XPSP resolution, its still then upscaling to work natively with your devices screen, which is a massive tax on resources.  If however, the program thinks your devices resolution is much lower, it frees up so much more headroom, for zero loss in quality.

Videos Here for proof, with FPS Counter in top right :

http://youtu.be/UWWIP_mu5rc
http://youtu.be/XpDEeUlSGWw
http://youtu.be/6HbQM_2JwIM


EDITED FOR BETTER SETTINGS!!!


Tested games working at full speed on the S7800 with close to no issues

Ridge Racer 1
Ridge Racer 2
Ys Seven
Ys Felghana
Ys Naphitsm
Hot Shots Golf 2
Daxter (Buffered Mode) Use older version of PPSSPP for speed
Darius Burst
FF Crisis Core
Monster Hunter Freedom Unite
LocoRoco
Prinny
Prinny 2
Persona 3
Kingdom Hearts Birth By Sleep
Crimson Gem Saga
Wipeout Pure
Ape Escape On The Loose
Gurumin
Brave Story
Castlevania Chronicles
Corpse Party (great game as well!)
Hammerin Hero
Little Big Planet (I cant get saves to work, but savestates are fine)
Lumines
PacMan Championship Edition
Legend Of Heroes Trails In The Sky
Ultimate Ghost N Goblins
Ys I and II
Final Fantasy Tactics
Megaman Powered Up
Lumines
Monster Hunter Freedom 1 and 2
Metal Gear Portable Ops
Manhunt 2
FIFA 12
Dragon Ball Shin Budokai 2
Rengoku 2
FIFA Street 2
Dragon Ball Tag Team
Mortal Kombat Unchained
Soul Calibur





NON WORKING OR NO DIFFERENCE

God Of War (Both unplayable) - Set Cpu to 60 and Frameskip to 0 makes this games playable, but not perfect.
Wipeout Pulse (Still jumpy)
Lemmings  (Not working)
Ratchet And Clank (Still Slow)
Virtua Tennis 3 (A touch slow + glitchy)
GTA VCS - Much quicker than before, but still too slow to be deemed playable (now 15-30FPS)
Half Minute Hero (Glitchy)
Outrun (Glitchy in game)
Streetfighter Alpha 3 (slightly messed up in game graphics, playable though)
Tekken 6
Tekken 5
MGS Peace Walker
Assassins Creed
NFS Most Wanted
Dante Inferno
FF Type 0
Dead Or Alive Paradise




Ill add more as I test

Ridge Racer 2 and Darius burst should be full speed (or almost) without changing resolution. (unless 7800 performs worse than i expected). Using non-buffered option speeds everything up, but lot of games are glitchy with random black screens.

Ridge Racer 2 and Darius burst should be full speed (or almost) without changing resolution. (unless 7800 performs worse than i expected). Using non-buffered option speeds everything up, but lot of games are glitchy with random black screens.

From what I can tell, the random black screens on non buffered is what is displayed rather than missing a frame (in my experience with Ridge Racer 2 anyway).  However, by lowering the resolution of the device, it doesn't miss any frames, and the black screen is totally gone. 

A couple of the games yes you have to flick back and forth between Buffered and non buffered, but everything now runs with 0 frameskip.  Turns an OK emulator, into a very very good one in my eyes.

Ridge Racer 2 and Darius burst should be full speed (or almost) without changing resolution. (unless 7800 performs worse than i expected). Using non-buffered option speeds everything up, but lot of games are glitchy with random black screens.

Darius Burst was very playable but subject to some jarring slow downs. This was before Tan's firmware if I remember correctly.

Playing it using the res app makes it much smoother albeit not nearly as good looking.

Works well with Darius Burst.

Wish I hadn't deleted God of War as that would be a great test for this thing.

Good find

Tried God Of War.  Makes no difference to that game.  Totally unplayable.  Suspect thats more an emulator issue than a speed issue causing that to be so slow.

Tried about 20 different games now.  God Of War like mentioned is unplayable no matter what you do.  All the Y's games work perfectly.  Only other game I've had with an issue is Wipeout Pulse.  That has quite a bit of stutter still no matter what settings applied.

Hey guys
What DPI setting should I put in that app?

Hey guys
What DPI setting should I put in that app?

I've been using the default 200 dpi.

Quote from: crispy on February 13, 2014, 03:03:31 pm

Hey guys
What DPI setting should I put in that app?

I've been using the default 200 dpi.

ok thanks

There is a new version of PPSSPP on the store now as well.  0.9.7 i believe.  Havent gone back over any of the games that I had trouble with yet but there looks like there might well be a few fixes for some.

Yeah Ive just tried VCS and whilst it does speed the game up a fair bit its still not enough to be playable (im getting around 15-20fps - its still double what I was getting before.  Deffo an emulator issue.)  Frameskip 1 however makes it full speed, but its too jumpy to play.  I'm sure games like these will come good eventually.   I think there is some kind of weird graphical post processing going on with this game, like there was on the PS2 version of Vice City to give it a neon 80s look.  You can see it around edges of the environment on lower resolutions.  Id bet thats what is causing the extreme slowdown.  Be interesting to try out Liberty City Stories to see if that has the same problem.

Thinking about it, that would explain why in non buffered mode all we are seeing is a black screen.  I think on the PSP Vice City used to render a frame, apply the post processing and then display the frame in the next one.  So on the PSP it was always 1 frame behind I believe.  If non buffered mode is trying to display the exact frame at the right time, there is going to be nothing to display, hence the black screen.   This might be a game they never manage to fix then in that rate.


In buffered mode however I can get the framerate now between 20-30 using the PSPs native resolution of 480x272 on the resolution switcher and then using PSPx1 in the settings