Metal Slug XX becomes more slower.

[rahadiankp]

I got a problem guys. When I was playing on 0.9.6-342-gcb28d33, Metal Slug XX and Naruto Ultimate Ninja Impact were having a massive slowdown. Everything was running so slow, the FPS drops to 5-10. But when I played with 0.9.6-267-ge2ac7ca, everything was just fine. The errors show up on the last build.

[unknownbrackets]

What is the first git build that started being slow, and the last one that was fast? That range includes like 80 changes, narrowing it down would help a lot.

Have you tried adjusting the texture caching settings?

-[Unknown]

[rahadiankp]

I mentioned it above, the last ver was 0.9.6-342-gcb28d33, and the fast one was 0.9.6-267-ge2ac7ca. And I have tweaked everything, like Non-/Buffered Rendering, Vertex Cache, etc, but none of that worked.

[unknownbrackets]

Again, that's a big range:
unknownbrackets/ppsspp@e2ac7ca...cb28d33

-[Unknown]

[rahadiankp]

Well, sorry. but I don't have the previous version before 0.9.6-342-gcb28d33.

[hrydgard]

Are you playing on Android or PC? Which type of device / gpu?

[rahadiankp]

Sorry for the late answer. Im playing it on my Linux laptop. My GPU' is Intel.

[unknownbrackets]

Oh, you're on Linux. I need to improve my memory.

Then you can just bisect, the easy way:
https://github.com/hrydgard/ppsspp/wiki/How-to-bisect-to-find-what-broke-a-game

Anyway, my biggest suspect is, as referenced, the glBlitFramebuffer() thing. You can try just commenting out that line. Otherwise, it could be the native change.

-[Unknown]

[dbz400]

Humm i just tested this game on my Android 4.3 as well as PC using latest build however i cannot see any slowdown here.

Would it be INTEL issue ?

[rahadiankp]

@unknownbrackets : I thougth so. I was suspecting the framebuffer problem. Since I'm not developer, I'm affraid I'm wrong.
@raven02 : was there no slowdown? Weird.

Well, I'm going to build the latest ver, hope everything's working well like before.

[rahadiankp]

Just built latest ver, the problem still exist.

[unknownbrackets]

So, even with that line commented out, it's still slow?

-[Unknown]

[rahadiankp]

Yeah. And by the way, games which need Buffered Rendering are having this problem. I have no idea where the problem is. But is that possible my Intel GPU causing this problem?

[unknownbrackets]

Well, Intel GPUs apparently hate OpenGL, so yes. That's almost definitely the reason.

If you could bisect the cause of the problem, we could probably fix or workaround it. Bisecting would take compiling and running about 7 times.

Other possible candidates:
6467c70
5f5220b
f570601
hrydgard/native@ed8df10

But who really knows, bisecting would tell us. Only a person experiencing the issue can bisect, so I can't do it.

-[Unknown]

[rahadiankp]

just updated my mesa to 9.0.3, and the slowdown seems to decrease just a little.

Well, I would like to bisect, but my main problem is my Internet connection.

[hrydgard]

If you can clone the source once, your internet connection shouldn't be an issue as you can go back in time with Git without any connection to the main repository. Remember, git is a distributed version control system, everyone has the full history locally.

[dbz400]

I think one good try may be skip out intel support for glbitframebuffer .Even it supported natively , it may not be good enough or powerful to run it with natvie intel chipset

[dbz400]

@theapocalyptic , still any slowdown in latest build now ?

[unknownbrackets]

On my desktop, I get 4500% in this game. I'm even able to run it (on an i7) at full speed in the software renderer.

Is there a certain area that is slow?

-[Unknown]

[ppmeis]

It works perfect for me:

[hrydgard]

I'll close this one, I'm not sure it's worth still investigating, PPSSPP has changed a lot.