Re: [linux-fbdev] Is a FontCache worth implementing ?

[James S. <jsi...@li...>]

> That's a more generalized _clear + _clear_margins ?

Yes. Also you can use different ROP with rectfill. Right now XOR and COPY
are supported. XOR is used for fbcon_recv.

> better _bmove ? (if only I could get _that_ one to work
> reliably)

Yep.

> > The last function is fb_imageblit
> > which transfers data from host memory to screen memory.
>
> Thats seems new to me (I only know 2.2 and 2.4, as I only grep'ped
> through Ruby). Could be useful...

Yes it is a ruby thing.

>I calculated that for small fonts, just sending the font data may  require
>less register writes than seting up a blit). This is naturally not true
>for bigger fonts (like 32x32 fonts, but do we use that ?)

Well if we want to draw the penguin (80x80) then yes. Image draw and
except any size image. This is a strenght. We don't have to say you can
only use 8,16,32 fonts. You can use any size. This is much more powerful.

MS: (n) 1. A debilitating and surprisingly widespread affliction that
renders the sufferer barely able to perform the simplest task. 2. A disease.

James Simmons  [jsi...@li...]               ____/|
fbdev/console/gfx developer                             \ o.O|
http://www.linux-fbdev.org                               =(_)=
http://linuxgfx.sourceforge.net                            U
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