Problem with current Mali version

Hello,

thanks for your answer. Yes, it's about the Mali OpenGL ES emulator version 2.1. I had it upgraded from a version unknown to me because the dFdx / dFdy functions from the #extension GL_OES_standard_derivatives gave strange results in fragment shader. The graphics board is a AMD Radeon HD 7470. The driver is a Catalyst 8.922.0.0 version.

Regards

Hello,

thanks for your answer. Yes, it's about the Mali OpenGL ES emulator version 2.1. I had it upgraded from a version unknown to me because the dFdx / dFdy functions from the #extension GL_OES_standard_derivatives gave strange results in fragment shader. The graphics board is a AMD Radeon HD 7470. The driver is a Catalyst 8.922.0.0 version.

Regards

tomgerard

That graphics card supports GL 4.3 so should be capable of running up to GLES 3.1 content.

The notes does state that some AMD graphics cards have known issues, however if you are stating it did work before on the same GPU, this may not be related to that.

Do you have a small reproducer so we can test to see if there is a problem with the emulator in version 2.1?

Many thanks,

Michael McGeagh

Hello,.

I will see what I can do. For starters, the Mali Cube Application doesn't seem to have multisampling activated for me.

Btw I have now a 14.501.1003.0 Catalyst Driver version. Problem persists.

Tested on a Nvidia card. Same.

Hello,

At this point we suspect an issue in the Emulator codebase with multisampling support not fully supported by an EGL implementation. So we will assign an internal ticket to investigate this problem and will get back to this post with and answer where we are with this.

Also, to confirm we look to the same problem, could you give us view which set set of EGL attributes you are using to choose your config?

Cheers

Adam

Hello again,

I confirm that there is an issue with the emulator using multisampled EGL config at the moment.

We've decided to prepare a bugfix release that will address the problem and it should be available for download shortly from now.

Thanks for help in spotting that.

Cheers,

Adam

...and here we are.

The 2.1.1 version has been released and published on the malideveloper.arm.com site today, and it contains a fix for the indicated problem.

Regards,

Adam

Hello,

I can confirm that multisampling in the cube application now works for me as well. I will test it with my full application in the following days.

Thanks for your efforts so far.

Regards