[cl-gd-devel] Re: cl-gd on 64 bit Lisp with do-pixel

[Hans Hübner]

Hi,

sure enough, my problem was not rooted in CL-GD, but rather in the
fact that I was using CFFI-UFFI-COMPAT.  I'll try to avoid that now!

-Hans

On Feb 11, 2008 1:09 PM, Hans Hübner <hans at huebner.org> wrote:
> Hi,
>
> I'm trying to use cl-gd on a 64 bit platform and I have a problem with
> DO-PIXELS applied to a truecolor image:
>
> (with-image-from-file (image "/home/hans/affe.jpg")
>   (do-pixels (image)
>     (format t "~A~%" (raw-pixel))))
>
> fails with a memory access violation error, both on openmcl and on
> sbcl on FreeBSD/amd64.  Do others see this, too, on 64 bit Lisps?  I
> want to rule out that it is a problem with gd on FreeBSD or the fact
> that I am using CFFI-UFFI-COMPAT.
>
> I have only quickly looked at cl-gd/misc.lisp and I saw that it uses
> :int as type specifier where I think a more specific data type like
> uint32 or some such would have been required.  But it could all be me.
>
> So, does anyone here run cl-gd on a 64 bit Lisp?
>
> Thanks,
> Hans
>