remove all printf from openjpeg / use proper function pointer for logging

[gcode-importer]

Originally reported on Google Code with ID 371

The only decent log library for c seems to be zlog

http://hardysimpson.github.io/zlog/

But it is posix only. We would need to do a windows port.
In the meantime, we could probably use the same interface 
and just output to printf for windows.

Reported by boxerab on 2014-07-05 02:10:43

[gcode-importer]

no external dep for such a low level implementation. opj mecanism allows one to use
any 3rd party log lib. closing as wontfix.

Reported by malaterre on 2014-09-17 09:58:32

• Status changed: WontFix

[gcode-importer]

I still see printf statements in the code. Does the opj mechanism redirect printf to
user-defined output? If not, I think we should convert all printf statements to use
the opj handler, in order to be consistent.

Reported by boxerab on 2014-09-17 14:27:27

[gcode-importer]

agreed. I thought all printf(s) were removed in 1.x -> 2.x transition. Please report
here if you find one. thx.

Reported by malaterre on 2014-09-17 14:29:05

• Status changed: Accepted

[gcode-importer]

Most annoying are the fprintf's in t2.c (some of which still have a commented out opj_event_msg
call right beside them) and the three WARNING fprintf's in tcd.c and tgt.c which regulary
spam my console.

Reported by zeniko on 2014-10-30 19:43:59

[rouault]

I can't see any (enabled) remaining printf/fprintf in t2.c, tcd.c and tgt.c. Closing