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IMX6 Frame Buffer

Question asked by Ali Sarlak on May 27, 2015
Latest reply on Jun 19, 2015 by Ali Sarlak

Hello

 

I created a simple program which duty is to draw a vertical line on (frame buffer) ,yet it seems the vertical line doesn’t draw from point (0,0) the actual line is drawn from point (0,3) 3 pixels to the right from origin.

 

Another problem is, when I use OpenVG to draw something(As you know OpenVG and OpenGL ES  use EGL to get native window) in double buffering mode (onscreen to offscreen and vice versa) sometimes I observe flickers on my screen(it quickly moves 3 pixels from left to right and vice versa) and sometimes everything is OK(no any flickers).

 

I believe the root of above problems lies on Frame Buffer kernel driver in Linux If anyone knows how I can solve the problems please share it with me.

I use L3.0.35_4.1.0_130816_source.

 

Best Regards:

Ali

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