Re: Telling libSDL that my fbdev can do acclerated fills

["Antonino A. Daplas" <adaplas@hotpop.com>]

On Wednesday 30 June 2004 11:56, Richard Smith wrote:
> I'm working on a app that runs on the STPC Atlas and uses libSDL with
> the stpcfb from STPC.  Kernel 2.4.x. I'm currently using 2.4.23 but any
> of later kernels will work.
>
> The Atlas video accelerator supports hardware assisted fills.  I've been
> looking over the stpcfb code and some of the other framebuffer drivers
> and its not obvious to me how the fb system exports out what kind of
> graphics hardware assisted abilities it has.  Or even how you would call
> those abilities if you knew they were avaiable.
>
> All I see is stuff for text related console work.
>
> The STPC is a pretty slow device and my app needs all the speed help it
> can get. libSDL is currently doing software fills since it dosen't know
> otherwise.
>
> I see in the libSDL source code that the FillHWRect funciton pointer for
> the fb driver is set to NULL as if its not possible to realize hardware
> assisted graphics functions via fbdev.
>
> Is this the case or what am I missing?
>

All hardware-assisted drawing functions in fbdev are for use by the console
only.  You might want to try DirectFB (www.directfb.org), I believe they have
ported a lot of libs, including SDL.  However, I doubt they have a gfxdriver for
your hardware though.

Tony




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