AWARE [SYSTEMS] Imaging expertise for the Delphi developer
AWare Systems, Imaging expertise for the Delphi developer, Home TIFF and LibTiff Mailing List Archive

LibTiff Mailing List

TIFF and LibTiff Mailing List Archive
April 2010

Previous Thread
Next Thread

Previous by Thread
Next by Thread

Previous by Date
Next by Date

Contact

The TIFF Mailing List Homepage
This list is run by Frank Warmerdam
Archive maintained by AWare Systems



Valid HTML 4.01!



Thread

2010.04.29 21:00 "lsb2msb", by Weichao Wang
2010.04.29 21:27 "Re: lsb2msb", by Edward Lam
2010.04.29 22:12 "Re: lsb2msb", by Toby Thain
2010.04.29 22:29 "Re: lsb2msb", by Chris Cox
2010.04.29 23:11 "Re: lsb2msb", by Bob Friesenhahn

2010.04.29 23:11 "Re: lsb2msb", by Bob Friesenhahn

On Thu, 29 Apr 2010, Chris Cox wrote:

> Many bitmap framebuffers (printers, old displays) were lsb2msb — the 
> order depended on the whims of the implementer.

Also, I understand that FAX is commonly sent in reverse bit order 
(lsb2msb) which differs from the normal convention for today's CPUs. 
CPUs were not involved when FAX was first invented.  Later, when the 
CPU was added, the CPU was weak and puny so the data was stored in the 
order presented.

Bob
--
Bob Friesenhahn
bfriesen@simple.dallas.tx.us, http://www.simplesystems.org/users/bfriesen/
GraphicsMagick Maintainer,    http://www.GraphicsMagick.org/