Metal slug xx

[Davidcard22]

What happens?

broken images small crashes almost imperceptible but harmful to gambling especially when there are many enemies on the screen this is problems with the way the I / O is GPU is being used

What should happen?

Improving the performance of how the emulator uses the GPU to process these 2D images is something that shouldn't be too hard for adreno 509,512 ...

What hardware, operating system, and PPSSPP version? On desktop, GPU matters for graphical issues.

Android 10 snapdragon 636 2.2 GHz overclocked 4Gb Ram backend OpenGl

[Davidcard22]

[sum2012]

edit: What is your phone 's model ?

[Davidcard22]

ZenFone Max pro m1, snapdragon 636 1.8ghz 4Gb Ram

[Panderner]

Here's what happens when I use save state or minimize the graphical glitch appears.

[sum2012]

@Davidcard22 Have you tried latest version in https://buildbot.orphis.net/ppsspp/ ?

[Ultra24]

This happened to me on iOS also

[ppmeis]

Tested on latest Windows build. It's working just fine with default settings:

[anr2me]

Here's what happens when I use save state or minimize the graphical glitch appears.

@Panderner including on Windows?
Or may be it's mobile GPU/OpenGL ES related issue?

[Panderner]

Here's what happens when I use save state or minimize the graphical glitch appears.

@Panderner including on Windows?
Or may be it's mobile GPU/OpenGL ES related issue?

I've tried OpenGL and Vulkan but it still happens.

[Panderner]

@Panderner including on Windows?

But unable to test windows version because i don't have a PC

[Panderner]

Here's what happens when I use save state or minimize PPSSPP the graphical glitch appear.

Without save state or minimize the game works fine

But when I use save state or minimize the game glitched out.

In order to fix graphical glitches without exiting the game pause and restart mission.

[anr2me]

Ah you're right, it also happened on Windows, a simple resizing/maximazing PPSSPP's Window will shows graphical glitch.

OpenGL:

Vulkan/D3D11:

[hrydgard]

Oh, that is not good. I'll look into it soon.

[ppmeis]

I can't reproduce this issue on my computer. Are you using any filtering?

[anr2me]

I can't reproduce this issue on my computer. Are you using any filtering?

I'm resetting PPSSPP settings to default and only changed the backend, play the mission and then click maximize button to maximize ppsspp window

[sum2012]

@Davidcard22 @Panderner can you test again with latest version in https://buildbot.orphis.net/ppsspp/
with enable "simulate black transfer effects" ?

[anr2me]

It's still there on the latest dev build, only software renderer worked properly.
OpenGL/D3D9

D3D11/Vulkan

[sum2012]

@anr2me I think that windows version of "play the mission and then click maximize button to maximize ppsspp window" is another issue,

[anr2me]

may be try fixing it on windows version first, since they have similar symptoms, and easier to debug.

[anr2me]

On Windows, the last working build is v1.10.3-474-gd465ce512 Quick Vulkan crashfix
May be @Panderner or @Davidcard22 can confirm whether this is true for Android too?

[Panderner]

On Windows, the last working build is v1.10.3-474-gd465ce512 Quick Vulkan crashfix
May be @Panderner or @Davidcard22 can confirm whether this is true for Android too?

The issue started in v1.10.3-477-g6d117fb53 and it's true for android too.

[unknownbrackets]

That it happens when you minimize implies there's a block transfer or temporary buffer going on that doesn't get saved to RAM. If #13327 impacted it, that just means we're applying a clear but not some later copy.

-[Unknown]

[anr2me]

Changing both lines with gstate.getColorMask() != 0xFFFFFFFF to gstate.getColorMask() != 0 on that commit seems to fix the issue on Metal Slug XX.

ppsspp/GPU/Common/SoftwareTransformCommon.cpp

Line 448 in ec91417

if (reallyAClear && gstate.getColorMask() != 0xFFFFFFFF && (gstate.isClearModeColorMask() || gstate.isClearModeAlphaMask())) {

ppsspp/GPU/Common/SoftwareTransformCommon.cpp

Line 473 in ec91417

bool writingColor = gstate.getColorMask() != 0xFFFFFFFF;

Edit:
Changing it to gstate.getColorMask() != 0 && gstate.getColorMask() != 0xFFFFFFFF worked too.

[hrydgard]

Oh, it's another one of those ... Related to #13344

I don't think it will help because I suspect it's the "opposite" issue, but try putting the gameid under "DisableFirstFrameReadback" in compat.ini...

[anr2me]

Adding ULUS10495 = true to compat.ini seems to do the trick.

[Panderner]

I disabled First Frame Readback for Metal Slug XX and it worked.

[unknownbrackets]

Well, this is an awfully unsafe looking safe size:

Safe size for 44154000: -64x-16

-[Unknown]

[hrydgard]

Nice find!

This should be fixed now after #13941 - please close after testing new builds.

[Panderner]

Unfortunately v1.10.3-1596-g48bb797ff is currently only available for 32 bit windows.

Edit: v1.10.3-1596-g48bb797ff is now available for android and 64-bit windows.

[Panderner]

As confirm of v1.10.3-1596-g48bb797ff is the issue is now fixed.