From:	eggbrains AT aol DOT com (Egg brains)
Newsgroups:	comp.os.msdos.djgpp
Subject:	Direct Access vs. Far vs. Near
Date:	1 Nov 1997 22:48:02 GMT
Lines:	21
Message-ID:	<19971101224800.RAA21869@ladder01.news.aol.com>
NNTP-Posting-Host:	ladder01.news.aol.com
Organization:	AOL http://www.aol.com
To:	djgpp AT delorie DOT com
DJ-Gateway:	from newsgroup comp.os.msdos.djgpp

okay, anyway, in my program (a start of a graphics lib -- yes, i know about
 Allegro)  i draw pixles to the screen (what else).  when i directly wrote to
 the screen ie:

vga = (unsigned char*)MK_FP(0xA000, 0);
vga[where]=color;

i can draw about 1.6 million pixels per second, however, when using Farnspoke,
 i can draw up to 3+ million pixels per second... why is it so much faster?

would using the near access go faster yet?

anyway, using the Far mode, how would i make selectors to sprites? would i make
 the sprites by define an array (with malloc/new etc...) and then make a
 selctor to it?  what about if I change the size/location? i will need to make
 a new selector right? an since you can't delete selectors if i re-size it
 enough will i run out of memmory?

Thanx a lot, 
    Paul

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