Path: utzoo!mnetor!uunet!husc6!bloom-beacon!gatech!mcnc!decvax!dartvax!eleazar!merchie
From: merchie@eleazar.Dartmouth.EDU (Anthony Wiggins)
Newsgroups: comp.sys.amiga
Subject: Re: Bobs and Double Buffering
Message-ID: <8417@eleazar.Dartmouth.EDU>
Date: 13 Mar 88 19:25:56 GMT
References: <8259@eleazar.Dartmouth.EDU> <593@oscvax.UUCP>
Reply-To: merchie@eleazar.Dartmouth.EDU (Anthony Wiggins)
Followup-To: comp.sys.amiga.tech
Distribution: comp.sys.amiga
Organization: Monolith Communications
Lines: 36
Keywords: buffering, graphics, bobs, blitter

Jan (or anyone else that is familiar with double-buffering)

I can not get your suggestion to work.  My problem mainly seems to
be that I have ONE rastport.
 
1.  I open a rastport with DBUFFER set as flag
2.  Do my AddBob once.
3.  Because of the fact that at the moment, I have only one rastport,
    I create another one (this is where the problem is occurring).
4.  I then try to do SortGList, DrawGList on this second Rastport, then
    swap them, etc.
 
I get gurus (code berzerk guru).  I have a feeling that I'm barking up the wrong
tree and it's most frustrating.
 
If you have done this, I plead (for reasons of sanity) to please give more
detailed information on this.  Can anyone PLEASE post a sample source code
that just double-buffers a tiny bob moving.  The code CAN'T be large, and I
would be most greatful, 'cause it appears that Usenet is the only resource
that I can fall back on.
 
Also, it is important that I attach this special RastPort to an Intuition
Screen structure, if possible.
 
Is this a dead end?  I mean, is it impossible to double-buffer bobs,
while using an Intuition-created Screen?  Does this mean that I can't have
windows, gadgets, and other intuition-related phenomena if I have double-
buffering?


All replies are welcome.  Others have informed me that they'd like to know the
answer to this dilemna as well, so public postings would probably be 
appreciated by the populace-at-large, but private replies are welcome.


[opinions?  what opinions?  I'm too confused to have opinions   - Anthony]