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[Discussion] 60FPS patches for PSP games that run at 30FPS
08-18-2013, 12:42 AM
Post: #74
RE: 60FPS patches for PSP games that run at 30FPS
(08-18-2013 12:38 AM)[Unknown] Wrote:  VIRGIN KLM: So, basically the function says "Okay, I'm done for now. It's been a long day, so I'm going to sleep. Wake me up in N vblanks or if a callback happens." (CB means the callback part.)

N is the parameter passed. Put another way:

sceDisplayWaitVblankStartMultiCB(0); <-- ERROR (silently does nothing.)
sceDisplayWaitVblankStartMultiCB(1); <-- waits for 1 vblank. Typically, 60 fps.
sceDisplayWaitVblankStartMultiCB(2); <-- waits for 2 vblanks. Typically, 30 fps.
sceDisplayWaitVblankStartMultiCB(10); <-- waits for 10 vblanks. This would be <= 6 fps.

The return value of the function is basically (except in the 0 case) always 0.

If the game says "wait 2 vblanks", you may be able to force it to wait 1 instead and run at 60 fps. Depending on how the game does its timing, this could also make the game run at 2x speed.

-[Unknown]
Uh that's why I couldn't find anything, it's always 0 (00 in HEX) on the games I tested. Do you happen to have any examples I could play with?
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RE: 60FPS patches for PSP games that run at 30FPS - VIRGIN KLM - 08-18-2013 12:42 AM

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