On 01/23/2013 12:47 PM, Nikita Kiryanov wrote:
Hi Albert,
On 01/22/2013 09:37 AM, Albert ARIBAUD wrote:
Hi Nikita,
[...]
Note that if the user address is constrained to be 4-byte-aligned,
then only the "2 x 'B' 'M'" case would apply.
I think a simpler way to implement something like this is to just
use modulo 4 to check alignment and fix the address dynamically;
perhaps even fixing it in the environment.
This is a localized approach though. We will have to do this from
all the code paths that lead to a bmp header being probed in memory.
I would prefer a more localized solution.
Correction:
"I would prefer a more global solution."
3) define an internal 'BMP holder' structure which contains a
two-byte prefix before the 'BMP file' header and data. This way, if
the overall structure is aligned, then the fields in the BMP header are
aligned too.
Amicalement,
--
Regards,
Nikita.
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