Communication between Browser and GPU process

[siddesh K]

Hello folks, 

   I was trying to find a mechanism to communicate between browser and GPU process. Need is to communicate 2 boolean flags from the preferences. Since browser process can access preference , want to red the values in browser process and  communicate the same to GPU process .

I came across GpuProcessHost object which could be helpful here . https://source.chromium.org/chromium/chromium/src/+/main:chrome/gpu/browser_exposed_gpu_interfaces.cc;l=78;drc=9dcbb17c64cdf18a30412f6f0c143c7a2cf7d38e?q=gpuprocesshost .

But wanted to confirm the below

-  Is there  something already being communicated from browser to GPU 

-  Can GPU process access preferences directly. 

Thanks

Sidd

[Joe Mason]

This earlier thread mentions that the GPU process has a special mechanism for preferences: https://groups.google.com/a/chromium.org/d/msgid/chromium-dev/CAHtyhaTHGUQkya42zJZhOexjNhPOii8QN_PuvgHJgg_NJKKayA%40mail.gmail.com?utm_medium=email&utm_source=footer

(Sorry, I don't have any more info than that.)

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[siddesh K]

Thanks Joe. I was able to achieve this by using GPUProcessHost residing on the browser process. had to wireup a mojo interface which  will be called from the browser process. Ultimately the GPU process gets notifies post that I can add my logic in the graphics code.