From:	"J. Erickson" <joyerick AT menahga DOT polaristel DOT net>
Newsgroups:	comp.os.msdos.djgpp
Subject:	Mode 13h graphics routines
Date:	Mon, 11 Nov 1996 23:34:40 -0500
Organization:	polaristel.net
Lines:	35
Message-ID:	<3287FE60.2D96@menahga.polaristel.net>
Reply-To:	joyerick AT menahga DOT polaristel DOT net
NNTP-Posting-Host:	sebeka-4.dialup.polaristel.net
Mime-Version:	1.0
To:	djgpp AT delorie DOT com
DJ-Gateway:	from newsgroup comp.os.msdos.djgpp

Hi ya. I'm sure everybody's sick of these stupid GRAPHICS questions
but
I'll ask one anyway. I'm working on a graphics API library thingy for
djgpp
v2. I've created about six C++ classes so far (Bitmap, Pixel, HLine,
VLine,
Line, and Palette) that I can instantiate as objects on the heap.
Anyway, I
am using the nearptr method for my Pixel::PutToScreen method and it is
pretty
damn fast (especially on my mom's system which has a 64-bit S3 card). I
have
also written sort of a blitting routine for my Bitmap class that uses
the
memcpy function and it too is seemingly pretty fast. But I am hoping to
get
some advice on learning how to write a putpixel routine that is faster
than
the nearptr hacks and how to write a blitting routine that doesn't rely
on
memcpy but is as fast or faster. I'm a little familiar with the AT&T
assembly
code format but I haven't really written anything yet. I'm a little
confused
when it comes to that. Of course, I'm sure that any routines that I
would need to write would probably be in assembly to be faster than what
I have.
Well, if anyone has the time and wants to donate a piece of their code
for
putpixel or blitting bitmaps routines, please feel free to reply to me.
I
have been looking at some of the DJGPP Inline Assembly Guides but I'm
still
a little lost. Any code or advice is appreciated. Thanx in advance.
							J. Erickson

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