(GE Emulation)(PSMF/MPEG) Monster Hunter 3rd HD Video Double Image Glitch

[ghost]

Game or games this happens in

NPJB40001 - Monster Hunter 3rd HD

What area of the game

During first cut scene

What happens

Screenrecording_20221108_130114_org.ppsspp.ppsspp.mp4

What should happen

No glitches during cut scene.

Screenrecording_20221108_130457_org.ppsspp.ppssppgold.mp4

GE frame capture

NPJB40001.ppdmp.zip

Platform

Android

Mobile phone model or graphics card

Vivo Y11 Android 11 Snapdragon 439 Adreno 505

PPSSPP version affected

v1.13.2-1861

Last working version

v1.13.2

Graphics backend (3D API)

Vulkan

Checklist

• Test in the latest git build in case it's already fixed.
• Search for other reports of the same issue.
• Try resetting settings or older versions and include if the issue is related.
• Try changing graphics settings to determine if one causes the glitch (especially speed hacks or enhancements/replacements.)
• Include logs or screenshots of issue.

[unknownbrackets]

Can you test a version around -900 or -1000 to narrow down when this started a bit?

I wonder if this is sceJpeg and maybe for HD remasters or something it behaves differently?

-[Unknown]

[hrydgard]

Yeah very much looks like a glitch in YUV->RGB conversion...

[ghost]

Issue started in build 76be009
Last build without double image issue a081d68
Might be the culprit is #16179 af28a3d

[unknownbrackets]

A log with ME set to Debug or Verbose would probably help. I guess we could chnange the planar order just on HD remasters, though...

-[Unknown]

[ghost]

A log with ME set to Debug or Verbose would probably help. I guess we could chnange the planar order
just on HD remasters, though...

-[Unknown]

How to get log with ME set to debug using android?

[unknownbrackets]

You could use the debugger: http://ppsspp-debugger.unknownbrackets.org/

Under PPSSPP's developer tools you can set ME log level, and then it'll send log messages to the browser you have connected, which you can copy and paste into a message here or into https://gist.github.com/.

But I think maybe based on #3821 I have a theory, the sceMpegAvcConvertToYuv420() function is probably wrong and needs to be corrected. I should probably do some tests to be safe... wonder if I have any games that use it.

-[Unknown]

[ghost]

I don't know if this right.
https://gist.github.com/Gamemulatorer/c5e2cb54244aec6fbd99486bf6cb32e1

[ghost]

Thanks