Or even worse (I've seen this in winex11.drv, and it took me quite a long time until I understood it - it was part of a larger block with a lot these constructs):
if (cond) do_sth(); do_sth_else();
I think you are speaking about the opengl code there. There are quite a number of pieces like that left. They are remnants of the old opengl code. During the move to winex11.drv I fixed the indentation in those functions a bit as before it was a lot worse. You had (and still have) perhaps 10 layers of indentation in some functions but at that time the indentation wasn't there.
Roderick