From: Marcus Rohrmoser <Marcus DOT Rohrmoser AT lrz DOT de>
Newsgroups: comp.os.msdos.djgpp
Subject: Re: GRX question
Date: Fri, 19 Feb 1999 12:51:07 +0100
Organization: Leibniz Rechenzentrum Muenchen
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To: djgpp AT delorie DOT com
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"Mariano Alvarez Fernández" wrote:
> 
> Hi,
> 
>   I have begun playing with GRX and I think it's a good library. I have
> found two minor problems:
> 
>   1- My video car is a S3 Trio 64, and using de S3 or the VESA driver I
> can't start the 800*600 16 colors mode (even with modetest program). No
> problem in other modes like 800*600 256 colors.

No idea.

> 
>   2- I have noticed the 16 colors modes are very slow, however the 256
> colors modes are really fast. Are there any reason?
> 

Some for some video modes there is speicific, optimized code, for others
isn't. For them generic (slow) routines are used. Maybe the coders
didn't think the 16-color modes beeing worth while to optimize.

So just forget the 16-color modes and use the 256-color ones is
possible.

> Regards, M.Alvarez

CU,
	Marcus