Does chromium wayland use egl ?

[范文]

Hi everyone!

I am a beginner of wayland.I have tried wayland on ubuntu 20 and it works fine.

After analyzing the source code,I thought the window is created by CreateWaylandEglWindow when I launch chrome by ./chrome --ozone-platform=wayland --use-gl=egl, but the function is not called(not hit the breakpoint).

So, under what conditions(or what command-line) will CreateWaylandEglWindow  be called?

What's the relation between wayland and egl(opengl)?Are there any relevant documents？

Thanks.

[Maksim Sisov]

Hi,

By default, we don't use Wayland EGL. Instead, we use a surfaceless path that uses libgbm to created dumb buffers, which handles are then exported as dmabuf and passed further. 

If you want to use Wayland EGL, you need to recompile chrome with use_wayland_gbm = false and run the browser with --in-process-gpu.

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Best Regards,
Maksim Sisov
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