Path: utzoo!utgpu!water!watmath!clyde!rutgers!ames!amdcad!sun!pitstop!sundc!seismo!uunet!portal!cup.portal.com!Chad_The-Walrus_Netzer
From: Chad_The-Walrus_Netzer@cup.portal.com
Newsgroups: comp.sys.amiga
Subject: specs on Blitter line drawing
Message-ID: <2362@cup.portal.com>
Date: 10 Jan 88 04:06:55 GMT
Organization: The Portal System (TM)
Lines: 10
XPortal-User-Id: 1.1001.2959


    Does anyone have any information on the efficiency of the Blitter for line
drawing?  Specifically, I want to know if it checks for special case lines such
as horizontal, vertical, and diagonal.  The reason I would like to know is that
I have a program where I can use a lot of conditionals and special case line
drawing, or less conditionals and diagonal line drawing (although less diagonal
lines than special case).  I would like to know which would be faster.  I
suspect that the vertical line routines would be more efficient overall just
because there would be far less to draw (about a third), and fewer conditionals
.  It will also produce more satisfactory results aesthetically.