Crash upon video loading on ARM64

[BrightKanon]

Hi,

Been using Aegisub 3.2.2 for months on an ARM64 Windows 11 laptop (SnapDragon), no issue at all.

A week ago, Aegisub began to crash each time I load a video (*.mp4, *.avi, etc.).

Even after a clean install and uninstalling the latest Windows Updates that may have sparked the issue (+K-Lite full install), absolutely no version of Aegisub (latest, forks, even dedicated to ARM64) works.

So, here are my questions:

• Is there a fix that I didn't find?
• Would a VM solve my problem?
• Could Aegisub contributors have ARM64 devices in mind from now on?

Thank you 🙏

[moi15moi]

@BrightKanon You might wanna try the build of this PR: #404

You can find the installer + portable here: https://github.com/TypesettingTools/Aegisub/actions/runs/15558142117?pr=404

Could you tell us if it work as expected?

[BrightKanon]

@moi15moi Thank you very much for your reply.
I tried this build, with no success.

After investigating crashdumps, it seems that the crashes mainly originated from the unability to find OpenGL.
Then, I tried to reinstall "OpenCL, OpenGL, and Vulkan Compatibility Pack" (which was already installed...)... and vanilla Aegisub worked again!
However, one reboot after, Aegisub crashed again, then I reinstalled the very same OpenGL package and now it works.

So the issue with ARM64 seems to be on the side of OpenGL and what ARM64 systems do to it when you boot/update.
This is quite tiring ^^;

[BrightKanon]

In case it helps, here is the issue with Aegisub and my ARM64 in Windows 11:

0:000:ARM64EC> .exr -1
ExceptionAddress: 00007ffba87b0b40 (qcdx12arm64xum!OpenAdapter12+0x0000000000422930)
   ExceptionCode: c0000005 (Access violation)
  ExceptionFlags: 00000000
NumberParameters: 2
   Parameter[0]: 0000000000000000
   Parameter[1]: 0000000000000000
Attempt to read from address 0000000000000000

0:000:ARM64EC> .exr -1
ExceptionAddress: 00007ffb6fe2dd04 (OpenGLOn12+0x000000000052dd04)
   ExceptionCode: c0000005 (Access violation)
  ExceptionFlags: 00000000
NumberParameters: 2
   Parameter[0]: 0000000000000000
   Parameter[1]: 0000000000000000
Attempt to read from address 0000000000000000