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- From: anneklin@acs.bu.edu (Patricia Anne)
- Newsgroups: comp.sys.atari.st.tech
- Subject: Re: Raster Copy [for window scrolling]
- Keywords: raster-copy, window, scroll, fast
- Message-ID: <101606@bu.edu>
- Date: 11 Nov 92 23:32:47 GMT
- References: <H.KtV1EXXhvs6@elfhaven.ersys.edmonton.ab.ca> <1992Nov11.133728.115954@rrz.uni-koeln.de>
- Sender: news@bu.edu
- Organization: Boston University, Boston, MA, USA
- Lines: 28
-
- In article <1992Nov11.133728.115954@rrz.uni-koeln.de> kim@vax.mpiz-koeln.mpg.dbp.de writes:
- >In <H.KtV1EXXhvs6@elfhaven.ersys.edmonton.ab.ca> mforget@elfhaven.ersys.edmonton.ab.ca (Michel Forget) writes:
- >
- >It seems to me that you should use the VDI(109) function, which
- >seems to be called vro_cpyfm() in standard C libraries. I don't
- >know though, whether this function will work properly with
- >overlapping rasters, that is, whether you'll have to copy the
- >raster to some buffer first and then copy it from the buffer to
- >its destination, or you can copy blocks directly from source tor
- >destionation.
-
-
- vro_cpyfm() works, and it deals properly with overlapping rasters,
- so you don't have to use a buffer--wouldn't want to, as it consumes
- a huge amount of time. Thank heavens I checked and ditched the
- buffer...
-
- There's a package on atari.archive, that's been languishing in the
- atari/New directory for some unknown time called wx_lib10.zoo. It's
- a window'd output library for C, and it emulates printf() and puts()
- with scrolling and all. Pretty soon I'm thinking of giving it VT100
- capability.
-
- Oh, yeah, I never saw any need for word-alignment--I can scroll text
- fast enough without it that it's unreadable.
-
- Later,
-
-