A tiny problem regarding with the mesa source layout and DRI driver development

[LiYe <omn...@gm...>]

Hi devs,

I have no idea if this is the right place to ask. But I've searched
around and didn't find the answer. So I am sorry if I made a noise. 

I'm interested in openGL implementation and the DRI driver development.
Specifically, I want to learn how an OpenGL command was implemented and
how it was converted into direct rendering context and transferred to
the hardware. I know this is a quite complicated and time-consuming
task, but it would be great if I can start the learning cruve with my
newbie background. So I'm trying to look into the mesa codes. However,
it seems quite large and monolithic and I cannot find a suitable
breaking point. So I wrote this to ask for some experienced advice. For
an overview of how DRI works in codes(not in theory as explained in
documents), where should I start with?

About my background, as an EE student mainly working in wireless
communication areas, I only have some basic knowledge of C
programming(but no large project experience) and several years of Linux
administration experience. I also have some theoretical knowledge about
Linux kernel and drivers.

Thanks sincerely for your time and input. 

Best Regards,
Li Ye