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
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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