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
May 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

2010.05.10 09:35 "Increasing the number of files loadable through libtiff", by Simon R Proud
2010.05.10 13:27 "Re: Increasing the number of files loadable through libtiff", by Edward Lam
2010.05.10 15:30 "Re: Increasing the number of files loadable through libtiff", by Simon R Proud
2010.05.10 15:51 "Re: Increasing the number of files loadable through libtiff", by Bob Friesenhahn
2010.05.10 16:17 "Re: Increasing the number of files loadable through libtiff", by Olivier Paquet
2010.05.10 19:10 "Re: Increasing the number of files loadable through libtiff", by Bob Friesenhahn
2010.05.10 20:07 "Re: Increasing the number of files loadable through libtiff", by Olivier Paquet
2010.05.10 14:01 "Re: Increasing the number of files loadable through libtiff", by Olivier Paquet

2010.05.10 20:07 "Re: Increasing the number of files loadable through libtiff", by Olivier Paquet

On Mon, May 10, 2010 at 3:10 PM, Bob Friesenhahn
<bfriesen@simple.dallas.tx.us> wrote:
> On Mon, 10 May 2010, Olivier Paquet wrote:
>>
>>> From a quick glance at the code, reading a directory looks like a
>>
>> single seek and 3 reads. Reading a tile/strip looks like one seek and
>> one read. It shouldn't be too bad for most files.
>
> And the directory tag values as well?

Oh right. I knew I must have missed something hidden deep in there :]
It's probably not catastrophic for most images but I guess it does
justify the use of memory mapped files.

> Running out of address space continues to be an issue on 64-bit systems.
>  Just because a system runs a 64-bit OS does not mean that the system is
> equipped for extra capacity.

True, there can still be arbitrary limits which are low. I guess I'm
being too optimistic when it comes to operating systems making good
use of hardware. I should know better given that this thread started
with the good old 1024 handle limit.

Olivier