Re: GGI Project Unhappy On Linux
Pavel Machek (pavel@elf.ucw.cz)
Fri, 27 Mar 1998 12:19:29 +0100
> > > (Note BTW its arguable that soon not only text mode but all direct frame
> > > buffer access will go out of fashion. Its an expensive slowing item that
> > > adds cost and major complexity to the performance critical memory subsystem
> > > on the video card).
> >
> > Erk! So what happens to blitting images to the screen?
>
> Dear graphics controller, there is a nice pixmap in main memory at
> 0xD0A13C30, its 64x64 pixels square and in RGB888 format, please map it
> to the 8bit mode colours you are in and dither if neccessary. If you'd be
> kind enough to post me an interrupt when you've finished I'd be
> greatful
Well, imagine putting 8x16 blocks on screen (letters). You got
interrupt for every character. That is not going to be too fast. (I
assume that current fbcon layer is not able to work with such
accelerated hw... :-( )
Pavel
--
I'm really pavel@atrey.karlin.mff.cuni.cz. Pavel
Look at http://atrey.karlin.mff.cuni.cz/~pavel/ ;-).
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