home *** CD-ROM | disk | FTP | other *** search
- Newsgroups: comp.sys.amiga.programmer
- Path: news.ifm.liu.se!liuida!news
- From: c92manen@und.ida.liu.se (Mans Engman)
- Subject: Re: Assembly Interlace problem!
- X-Nntp-Posting-Host: astmatix.ida.liu.se
- Message-ID: <686.6599T1211T743@und.ida.liu.se>
- Sender: news@ida.liu.se
- Organization: CIS Dept, Linkoping University, Sweden
- X-Newsreader: THOR 2.22 (Amiga;TCP/IP) *UNREGISTERED*
- References: <3104F66D.74@gih.no>
- Date: Fri, 26 Jan 1996 19:11:14 GMT
-
-
- >I am trying to display a 1280*512*8 image using an assembler, but
- >I can't get the screen to do the 512 interlaced.
-
- > I've dumped the original view and made my own copper and set the bpl
- >pointers, colors, mode to 8 bitplanes SHRES and the lace bit, and
- >the FMODE to 8 byte.
- > My screen goes 1280*256*8 and it starts flickering. So, I must have
- >missed something important here!
-
- Yep, you missed OpenScreen() ;-)
-
- Seriously, you should set things up so "long" frames display lines 1,3,5,7...
- and "short" frames lines 2,4,6,8... (or is it the other way around?)
- There's a bit in VPOSR that indicates whether it's a long or a short frame.
-
- > Please mail me. ..and, Thanks!
-
- /Mσns
-
-