Buggy Frameskipping at 1[Silent hill Origins](Android & Windows)

[389abhaysingh]

Since this game doesn't work much good on android version of ppsspp therefore I used frameskipping at 1 Surprisingly the game then works at constant 60 fps but the graphics are buggy and screen flickers alot now it looks as if some serious bug is there EDIT : This bug is present in windows version too

Let me attache some of screenshot EDIT : while taking screenshot the flickring disappears :(

[blackman91]

Can confirm this happens in windows with direct3d too.

[389abhaysingh]

With direct3D 11 the case is even worse The game flickers + some graphics are not visible

[389abhaysingh]

@blackman91

[LunaMoo]

This isn't really an emulation issue, it's rare in PSP games, but if some game draws something only every other frame and you decide to skip it, that's where you're causing the problem, it's not limited to skip 1, backend or whatever, it will bug out in all odd values as long as the game works that way.

The only way to workaround it would be to let the user manually decide how many frames to draw before skipping and we already have a request for such feature in #5630. Looking at the date of that request, seems like nobody cares about adding such confusion to ppsspp UI;p.

[unknownbrackets]

We have some code that's meant to detect when games actually draw - I wonder what's tricking it for this game into thinking it's drawn, when it really hasn't. If it wasn't for that, the frameskip would probably work more accurately.

But yeah, frameskip will never be a completely perfect science. Some games (maybe this one?) will draw something on only one frame, and reuse it. Since we never know when that will happen, it's impossible to know NOT to skip it when it does.

-[Unknown]

[ghost]

Since this game doesn't work much good on android version of ppsspp therefore I used frameskipping at 1 Surprisingly the game then works at constant 60 fps but the graphics are buggy and screen flickers alot now it looks as if some serious bug is there EDIT : This bug is present in windows version too

Let me attache some of screenshot EDIT : while taking screenshot the flickring disappears :(

This game is still have some issue on frameskipping 1 also lag on OpenGL backend in default settings. But in Vulkan backend this game is running smooth in default settings.

[ghost]

After playing for 30 minutes I notice a white frame 🤔