Date: Sun, 27 Oct 1996 14:51:18 -0800 (PST)
From: Samuel Vincent <svincent AT zippy DOT sonoma DOT edu>
To: Indrek Mandre <indrek AT warp DOT edu DOT ee>
cc: djgpp AT delorie DOT com
Subject: Re: Graphics slow?
In-Reply-To: <Pine.LNX.3.91.961026202513.211A-100000@warp.edu.ee>
Message-ID: <Pine.GSO.3.94.961027145010.27194A-100000@zippy>
MIME-Version: 1.0
Content-Type: TEXT/PLAIN; charset=US-ASCII

On Sat, 26 Oct 1996, Indrek Mandre wrote:

>    First I must say that I am a beginner in programming djgpp.
> This far I have only programmed on Linux. Some weeks ago I got
> djgpp 2 and I began to like it. But now I have some problems.
> On Linux I programmed graphics and used svgalib. There I mostly
> wrote my own fast asm code and used only some svgalib parts for
> graphics modes seting, bank/page switching/seting, scrolling.
> I ported one of my programs to djgpp and used Allegro (bliting and
> double buffering, virtual bitmaps and so on). I tested it and
> it was precisely 2 times slower than on a Linux. Is this normal?
> Does this mean I have to use my own good fast asm code? Here comes
> the trouble. I found no such simple library, which would _only_
> support:
> 	many graphics cards,
> 	graphics modes seting,
> 	banks switching for me,
> 	virtual screen creating for me,
> 	scrolling for me,
> 	...
> and _not_ to:
> 	allocate megs of structures I must not know about
> 	not to let me change banks or write directly to screen
> 	....
> 
>    Is there that kind soft existing? Or must I change to Watcom?
> I have seen one library - by scitechsoft, but it is commertial
> soft and doesn't work under djgpp2 (I'm not sure), maybe under
> djgpp1. I have nothing against Allegro or jlib or libgrx but they
> are so slow and complicated.
>  
> Indrek Mandre


I believe there is an msdos port of svgalib.  I couldn't tell you where,
though.  This might do what you want, but the library would probably be
lgpl'd...

-Sam