[Mesa-dev] renderbuffer-cleanups-v2 branch

[Brian Paul]

The renderbuffer-cleanups-v2 branch removes all the old swrast 
GetRow/PutRow stuff.  All swrast rendering is now done through 
renderbuffer mapping and the format_pack/unpack.c code.

The gl_renderbuffer type is smaller and cleaner now.  Plus, a few more 
old driver hooks are removed.

There's room for more clean-ups and improvements in the swrast and 
non-gallium DRI drivers but I'm probably not going to do much with 
that since the objective of cleaning up core Mesa is done now.

I'll probably merge this to master later this week if there's no 
concerns.  I've tested with i965 and will try i945 later.

-Brian