Path: utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!usc!apple!motcsd!starnet!sschaem
From: sschaem@starnet.uucp (Stephan Schaem)
Newsgroups: comp.sys.amiga.programmer
Subject: Re: Explanation of the RAWBLIT format
Message-ID: <1991Jun20.011733.22036@starnet.uucp>
Date: 20 Jun 91 01:17:33 GMT
References: <15472@exodus.Eng.Sun.COM>
Organization: Starnet-Public Access UNIX-Los Altos,CA 415-949-3133, login:info
Lines: 13


The idea in raw blit is 'interleaved' planes, so you have one blit for
all plane.
Its faster because you init the bliter once.
Its 'eliminate' flicker because it simple to sync to the VBeam, and even
without sync the 'size change' efect is defenectly better.....
Actually there are only advantage doing this, but not for all tasks.
For example you will need a FULL mask of the object, or use nultiple
pass.(Memory angry)                      
Also 'hardware' Vertical flip cant be done in raw blit.
etc...

So to use RAWBLIT, interleave you bitplane, and your object data...