Re: [2.2.1] Strange TGA behavior

Pavel Machek (pavel@bug.ucw.cz)
Tue, 2 Feb 1999 12:26:30 +0100


Hi!

> The TGA driver is 100x faster than the 2.0 version but I'm curious about
> one thing I've noticed it do from time to time. I'll be using mutt to read
> e-mail and I'll do a full screen redraw.. it'll only be one line in particular
> but I can watch it draw the last character that is going to be on the line..
> like:
>
> !
> H!
> He!
> Hel!
> Hell!
> Hello!

This might be curses "optimalization". mc liked to do something
similar when scrolling: it was both inefficient delete N lines
implementation in kernel (which did it line-by-line) and
[miss-]optimalization by curses.

Don't look at tgafb. This is most probably not tga specific. Look at
output from mutt for "insert N characters" escape sequence.

Pavel

-- 
I'm really pavel@atrey.karlin.mff.cuni.cz. 	   Pavel
Look at http://atrey.karlin.mff.cuni.cz/~pavel/ ;-).

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