AM4378: About WebGL1.0 behavior

Hello Kouji,

I believe it's a browser dependency and you could test webgl support for you browser using the following link: https://get.webgl.org/.

Regards,
Krunal

Hi, Krunal

The customer has checked the behavior of WebGL and it crashes on the following sites, including the one you told us about.
www.khronos.org/.../webgl-conformance-tests.html,
https://www.wirple.com/bmark/
threejs.org/.../webgl_performance_nodes.html
This was not only with their custom browser, but also with the matrix browser included in the SDK.
In the custom browser, the crash was preceded by the message "PVR:(Error): ComputeFrameBufferCompleteness: Unknown texture format [0, ]".
However, in a custom browser, if they set the WebGL depth/stencil attribute to false, the crash does not occur!
Can you tell me what the problem is with this?

Best Regards,

Kouji Nishigata

Hello Kouji,

Unfortunately, we have not tested WebGL on AM4378 but I can bring up the above behavior with our internal team.

Regards,
Krunal

Hi, Krunal
Thanks for the reply.

If possible, it would be helpful if you could check the behavior and see if there are any errors.
I have no idea if it is something that can be fixed by modifying the SDK or if it is something that requires changes to WebGL itself.
We don't even know what the "depth/stencil attribute" setting means, so we haven't been able to determine that.

Best Regards,

Kouji Nishigata

Hello Kouji,

Based on my internal discussion, we have not tested webgl on SGX530 and is not supported usecase.

Regards,
Krunal

Hi,Krunal

Thanks for the answer.
Is this a definite issue?
Is there any problem in answering to the customer that "WebGL does not seem to be supported in Linux on SGX530 (AM437x), so this may happen"?

Best Regards,

Kouji Nishigata