Eyemodule works with original JPEG library modified in this way: - (a) palm #defines in jconfig.h - (b) own i/o, error treatment and allocations (this is a must) - changes needed to run as shared lib (I would start without these changes) - few added colorspaces (unimportant at the beginning) - they include only compression half; I would go for original library and apply changes (a)+(b)
JPEG library is well written and reliable engine, but there is no easy entry point. You have to invest lot of time ... I briefly compared the engine and it is OK. If any problem, then it should be in (b), but that's the part which you can check yourself. (Finally, it is in your interest as you may want to supply your own solution.) JERR_BAD_HUFF_TABLE error code, which you report, seems to point to some setup problem. One possibility would be to debug the bug. It can't be a big deal to find out what's going wrong - just put BP before error report and then look where the tables are produced. It could be jpeg_gen_optimal_table(). For the start I would certainly work without shared lib by linking library files statically. (Read jcpalm.txt) Jan Slodicka ----- Original Message ----- From: "Jim Duffy" <[EMAIL PROTECTED]> > I have downloaded the Eyemodule jpeg library which is a modified version of > the IJG library. After compiling the shared library and the example apps I > still get errors at run time in both POSE and an actual device. The error > is: "Bogus Huffman Table Definition". > Has anyone else used this library with any success? I'd like to see the > included apps work before spending time on using it in my app. > > Is anyone aware of any other resources that can be used to display jpegs? I > only want to view them and not create them. > > Also, I've looked over the improvements to Palm OS 5 and see that there is > better security and audio support but see no mention of support for standard > image file types.. Is this the case? -- For information on using the Palm Developer Forums, or to unsubscribe, please see http://www.palmos.com/dev/support/forums/
