Re: [Linux-fbdev-users] Blanking the screen : EZFB

[James L. <ja...@ak...>]

Would someone send me a snipet of code that shows how to call the
accelerator functions in fb_ops? All of the fun stuff seems to be defined
inside of a #ifdef __KERNEL__ section. How do I get at this?

Thanks!                     James.   :o)



----- Original Message ----- 
From: "James Lehman" <ja...@ak...>
To: <lin...@li...>
Sent: Friday, July 01, 2005 10:17 PM
Subject: Re: [Linux-fbdev-users] Blanking the screen : EZFB


> OK. I've looked at the code quite a bit and I've done some searching...
> Sorry if I'm getting into this and it has already been discussed, but are
> there any online docs about what changed in the new 2.6 frame buffer vs.
> 2.4? I see there is a thing called fb_info and it has a structure of
> function pointers in it that look like they do some fabulous things. All I
> create in my code is a user version of fix and var and a memmap to the
video
> ram. Are there some examples of instantiating an fb_info with fix and var
> encapsulated inside of it? Please note: I've been into computers most of
my
> life for one reason only... For art. I really want to get this right. I
just
> got a Matrox G400 with 32MB ram. I can double buffer a screen of 1600x1200
@
> 32. Even with a waist of time like memsetting zeros to every pixel on the
> screen for a wipe, it SMOKES! (in a good way). I also really want to get a
> mouse pointer working. Is all this stuff I see about "cursor" relevant to
> that or is that just character cell terminal block letter stuff?
>
> http://www.akrobiz.com/ezfb
> http://www.akrobiz.com/laserboy
>
> Thanks!    James.   :o)
>
>
>
>
> ----- Original Message ----- 
> From: "James Simmons" <jsi...@ww...>
> To: <lin...@li...>
> Sent: Tuesday, June 28, 2005 5:02 PM
> Subject: Re: [Linux-fbdev-users] Blanking the screen : EZFB
>
>
> >
> >
> > In 2.6.X the kernel side supports fillrect. Do a fillrect the size of
the
> > display with the color black.
> >
> > On Mon, 27 Jun 2005, James Lehman wrote:
> >
> > > Is there a way to ask the GPU on the video card to wipe out the data
in
> the
> > > visible area of the screen?
> > > I have found it takes WAY to long to memset zeros to every line and
> keeping
> > > track of only those pixels that have changed seems like more work than
> it's
> > > worth.
> > >
> > > http://www.akrobiz.com/ezfb
> > > http://www.akrobiz.com/laserboy
> > >
> > > Thanks!
> > > Take care.   ~James.   :o)
> > >
> > >
> > >
> > >
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