SK-AM62P-LP: eglCreateContext fails in multithread

Hi,

Have you looked at the following: https://stackoverflow.com/questions/11726650/egl-can-context-be-shared-between-threads?

Regards,
Krunal

Thanks，it seems like My code flow is similar to the above, but it fails.

Is there any source code for reference?

Hi,

We do not have any reference source code but could you share your example with us?

Regards,
Krunal

sorry ,I can't share more detail code.

I will show my code flow in the follow

creat thread1

thread1{

/* init code flow refer to "wayland / weston · GitLab"*/

..

wl_list_init();

wl_display_roundtrip();

...

/********************************************************************************/

init_egl(&display, &window); // this func will generate display->egl.ctx

/*********************************************************************************/

create_surface();

init_gl();

...

}

/********************************************************************************/

sleep(2);

/*********************************************************************************/

creat thread2

thread2{

/* init code flow refer to "wayland / weston · GitLab"*/

..

wl_list_init();

wl_display_roundtrip();

...

/*********************************************************************************/

init_egl(&display, &window); // use display->egl.ctx of thread1 in fun eglCreateContext(),but it will generate a "EGL_BAD_CONTEXT" error when running

/*********************************************************************************/

create_surface();

init_gl();

...

}

Let me check internally and will get back to you.

Regards,
Krunal

Hi,

I just ran an older example I had from another customer and the example uses multi-threads and multi-context. In summary, I was able to run their example on AM62P with out any issues. I believe it shows that our driver/GPU does not have any bugs or limitations.

Regards,
Krunal

thank，

how is the workflow of your older example,is it similar with mine?

Could you please show more detail about your older example?

Hi,

Unfortunately, I cannot share code snippet because it belongs to another customer and I don't have rights to share code. The logic is similar but they didn't use Weston and were running it using DRM/KMS.

Regards,
Krunal

thank you all the same