topic SimpleGLScreen issue in i.MX Processors

SimpleGLScreen issue

otemeshen — Tue, 16 Oct 2012 22:20:54 GMT

Running hellogl_es2 on imx53 board:

./hellogl_es2 -display simplegl:rgb16 -qws

I am getting the following issue:

SimpleGLScreen: could not create the full-screen window

SimpleGLScreen: may need to modify defaultRootWindowHandle()

simplegl: driver cannot connect

Aborted

The current implementation of simplegl assumes that the native window id is zero. Has this changed? Has anyone observed this behavior?

Re: SimpleGLScreen issue

otemeshen — Wed, 17 Oct 2012 16:49:05 GMT

Application note: AN3994 says the native window id should be the file descriptor returned from open("/dev/fb0"). But this has not worked on my platform.

eglCreateWindowSurface

(context->display(), context->config(),

open("/dev/fb0", O_RDWR, NULL), props.properties());

Re: SimpleGLScreen issue

otemeshen — Thu, 18 Oct 2012 01:56:22 GMT

Solved:

It looks like I needed the

MX53_LINUX_1109_BSP_PATCH

Patch based on L2.6.35_11_09_ER_SOURCE, to provide: GPU driver update.