[boost] Re: IOStreams endianness filter

From: Tony Juricic (tonygeek_at_[hidden])
Date: 2004-09-15 18:33:34

"Jonathan Turkanis"  wrote:

> I know some image formats have a byte-order flag in the header somewhere
which
> determines how the pixel data is stored. Right? Wouldn't a general filter
which
> switches by order screw up the header too?
>
> Forgive me, but I don't know the TIFF format.

In the case of TIFF it shouldn't be a problem since first 2 bytes of the
file contain either MM or II characters for Motorola or Intel byte order.

Admittedly, that was just a by-the-way thought and I am not sure TIFF is a
good case to argue usefullness of built-in endianness filter. I happened to
be working with writing TIFFs (see attached example that writes simple 10x10
pixels TIFF with 3 color stripes, once in big and once little endian format)
and wondered if applying iostreams filter would result in more elegant and
reusable code.

Tony

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