i.MX ProcessorsのトピックRe: eglSwapBuffers Behaviour X11

eglSwapBuffers Behaviour X11

jacoblim — Wed, 06 Sep 2017 06:47:58 GMT

I am trying to understand the behavior of eglSwapBuffers().

I was under the impression that if my rendering code took 4ms, eglSwapBuffers will block the thread for 16.7ms - 4ms.

However, when I tried measuring the time taken between eglSwapBuffers, the time is 4ms.

Is this due to X11? Will be trying DirectFB for comparison.

But in the mean time, would appreciate it if anyone can enlighten me.

I am using the i.MX6QP-SABRE-SD with Linux 4.1.15_2.0.1 Patch.

My output is 800x600@60Hz on HDMI.

Thanks

Jacob

Re: eglSwapBuffers Behaviour X11

CarlosCasillas — Mon, 18 Sep 2017 16:34:23 GMT

Hi Jacob,

You could take a look at the following thread:

https://community.nxp.com/message/564472

Hope this will be useful for you.
Best regards!
/Carlos
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