Re: [Linux-fbdev-devel] Best font drawing algorthim.

[Romain D. <do...@ir...>]

James Simmons wrote:

>   I'm looking for the best font drawing alogrithm for the framebuffer
> layer. I'm been banging my head on a really fast implementation that
> can work at any pixel depth. Anyone got pointers?

My understanding of ruby was that a 1bit fb_image would be sent to
the driver 'xxxfb_imageblit' function to be expanded in hardware.
Are you talking about filling the fb_image (one per character or
one per line or...), or about a generic 'xxxfb_imageblit' for driver
not supplying their own ?

Or eventually of adding another API similar to the current one
(2.2 / 2.4) that would ask a driver to draw a specific character
at a specific localtion by whatever means the driver see fit ?

I believe that the last would be both easier for you (simple
reuse of current working code) and the most efficient for
driver writers, as they could use the best/fastest way for
the hardware to draw glyphs ; it's not necessarily expanding
a 1-bit image (even if it's the way I'm doing it ATM :-)

Just my 0.02 euros.

-- 
DOLBEAU Romain               | l'histoire est entierement vraie, puisque
ENS Cachan / Ker Lann        |     je l'ai imaginee d'un bout a l'autre
do...@ir...             |           -- Boris Vian