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From: docbrain@netmbx.UUCP (Frank Seidinger)
Newsgroups: comp.lang.pascal
Subject: BitBlit for EGA in TP
Keywords: EGA VGA BitBlit BitBlt
Message-ID: <1506@netmbx.UUCP>
Date: 6 Dec 90 20:34:54 GMT
Distribution: comp
Organization: netmbx, Berlin, West Germany
Lines: 23


Hi there,

   for a work related to my Diplom (I'm studying electrical engineering), i
   have to perform a BitBlit (bit aligned copy of a rectangular graphics
   from one location to another) on an EGA graphics card. I already got
   a piece of code out of the book 'Programmers Guide To The EGA/VGA' from
   Sutty and Blair, published by Brady. It aktually does nearly what I
   wanted but had two popperties I didn't liked. First, even on a 386 based
   33MHz computer it is very slow and second, it copies the 'Bits' planewise.
   So the color of a white window copied from one location to another first
   changes four times, before it is wholy copied.

   Thanks, in advance Frank.

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