JPEG parameter struct mismatch

JPEG parameter struct mismatch

[w1hkj]

I have a fairly simple image to save in jpeg format.  The code works 
correctly in native Linux and also compiles and works correctly under 
MinGW.  When I try the same build in Cygwin the program crashes with the 
following libjpeg message:

JPEG parameter struct mismatch:  library thinks size is 376, caller 
expects 360.

Testing the struct in question, "jpeg_compress_struct" with a sizeof 
give the value 360.

So what am I doing wrong?  The full program needs to run in Cygwin.

Thanks,

Dave Freese
www.w1hkj.com




--
Unsubscribe info:      http://cygwin.com/ml/#unsubscribe-simple
Problem reports:       http://cygwin.com/problems.html
Documentation:         http://cygwin.com/docs.html
FAQ:                   http://cygwin.com/faq/

Re: JPEG parameter struct mismatch

[Charles Wilson]

w1hkj wrote:
> JPEG parameter struct mismatch:  library thinks size is 376, caller 
> expects 360.
> Testing the struct in question, "jpeg_compress_struct" with a sizeof 
> give the value 360.

The cygwin jpeg includes the so-called "lossless jpeg" patch. This patch 
changes the *private* portion of the jpeg structs, and their size.

See:
http://www.cygwin.com/ml/cygwin-apps/2001-02/msg00001.html

--
Chuck

--
Unsubscribe info:      http://cygwin.com/ml/#unsubscribe-simple
Problem reports:       http://cygwin.com/problems.html
Documentation:         http://cygwin.com/docs.html
FAQ:                   http://cygwin.com/faq/