Re: [Caml-list] bigarray & int24

[Berke Durak <berke.durak@exalead.com>]

Christoph Bauer a écrit :
> Hi,
> 
> my program should read unaligned 3 byte integers. (A real world
> example for such a format would be an RGB image). What is
> the best approach?
> 
>   - extend bigarray for the int24 format and send the patch to INRIA
>   - write a C-function, which converts the data to an int32-array
>   - read an 1-byte-bigarray and construct an int-bigarray
>   - ???
> 
> It should be a bigarray solution, because my program reads other
> (supported)
> formats as well.
> 
> Speed matters, because there are a lot of data.
> 
> Thanks,
> 
> Christoph Bauer

Last time I did this, I used a (m x n x 3) byte bigarray, also known
pendantically as a rank 3 tensor, where m is the number of rows and
n the number of columns.  Should work reasonably well.

-- 
Berke DURAK