Hello.
I think there's something strange going on with libpng on my
system,
specifically with the handling of low bit-depth images. Now
correct
me if I'm wrong, but the following 8x8 1 bit checkerboard
image:
h
ttp://img98.imageshack.us/img98/7632/gs18x8we8.png
...should, when decompressed to raw pixel data, show the
following
bit pattern when viewed in a binary editor:
10101010 10101010 10101010 10101010 10101010 10101010
10101010 10101010
However, the first byte returned from png_read_row() doesn't
look
like this at all, and the resulting bit pattern for the
image turns
out like this:
11010101 10101010 11010101 10101010 11010101 10101010
11010101 10101010
One bit appears to be duplicated in places.
If my first assumption turns out to be correct, I'll post a
small
tarball of code that shows the symptoms. I'm open to the
suggestion
that the problem is in my code, of course.
thanks,
MC
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