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June 2017

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2017.06.27 20:51 "Excessive memory allocation while chopping strips", by Nicolas Ruff
2017.06.27 22:08 "Re: Excessive memory allocation while chopping strips", by Even Rouault
2017.06.27 22:43 "Re: Excessive memory allocation while chopping strips", by Olivier Paquet
2017.06.27 22:52 "Re: Excessive memory allocation while chopping strips", by Even Rouault
2017.06.28 02:26 "Re: Excessive memory allocation while chopping strips", by Olivier Paquet
2017.06.28 10:09 "Re: Excessive memory allocation while chopping strips", by Even Rouault
2017.06.28 13:49 "Re: Excessive memory allocation while chopping strips", by Olivier Paquet
2017.06.28 14:36 "Re: Excessive memory allocation while chopping strips", by Even Rouault
2017.06.28 15:22 "Re: Excessive memory allocation while chopping strips", by Olivier Paquet
2017.06.28 15:42 "Re: Excessive memory allocation while chopping strips", by Bob Friesenhahn
2017.06.28 19:01 "Re: Excessive memory allocation while chopping strips", by Rob Tillaart
2017.06.28 20:37 "Re: Excessive memory allocation while chopping strips", by Bob Friesenhahn
2017.06.29 05:52 "Re: Excessive memory allocation while chopping strips", by Paavo Helde
2017.06.28 18:08 "Re: Excessive memory allocation while chopping strips", by Paavo Helde

2017.06.28 15:42 "Re: Excessive memory allocation while chopping strips", by Bob Friesenhahn

On Wed, 28 Jun 2017, Olivier Paquet wrote:
>
> I think you misunderstood me. I meant the problem that uncompressed
> strip size can be quite large and, as far as I know, can't be
> validated without decompressing the data. A hard limit on strip size
> would cover that neatly and sane applications will keep it reasonable
> anyway.

I agree that implementing a hard limit on strip/tile size (including 
when writing) is beneficial.

The question is what the justification for using very large 
strips/tiles and what is the largest justifiable large strip/tile 
size?

For a very large image, if a strip is just one row, then it needs to 
be allowed to be large enough to support the maximum image width.

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