lkml.org 
[lkml]   [2002]   [Dec]   [28]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: [Linux-fbdev-devel] [FB PATCH] cfbimgblt isn't 64-bit clean

> The text is written as if it's thinking about handling 64-bit
> unsigned long, but it doesn't. The tables that map bits to
> pixels are completely unprepared for this.
>
> I thought about widening the tables, but I thought they'd get
> unreasonably large. There's no reason not to go ahead and
> handle this 32-bits at a time.

I thought the tables would come back to haunt us. The only reason the
tables where introduced was for speed enhancements. I reason the code is
extra complex was so you could pass 64 bits of data across the bus. I
still like to see that happen still. What do you think?





-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/

\
 
 \ /
  Last update: 2005-03-22 13:31    [W:0.121 / U:0.580 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site