[PATCH] r128: handle two-sided lighting correctly

The olight application from the OpenGL GLUT examples [1] crashes with a segmentation fault straight after turning off two-sided ligthing. A backtrace from a debug build shows that function pointers still point to the [line|triangle|quadr]_twoside routines after switching to one-sided mode, and,

Re: [PATCH] r128: handle two-sided lighting correctly

Péteri András wrote: The olight application from the OpenGL GLUT examples [1] crashes with a segmentation fault straight after turning off two-sided ligthing. A backtrace from a debug build shows that function pointers still point to the [line|triangle|quadr]_twoside routines after switching