[Boost-bugs] [Boost C++ Libraries] #1144: GIL 2.1 PNG IO fix for endianness problem with bit_depth == 16.

Subject: [Boost-bugs] [Boost C++ Libraries] #1144: GIL 2.1 PNG IO fix for endianness problem with bit_depth == 16.
From: Boost C++ Libraries (noreply_at_[hidden])
Date: 2007-08-06 10:51:29

#1144: GIL 2.1 PNG IO fix for endianness problem with bit_depth == 16.
----------------------------------------------------+-----------------------
 Reporter:  William Gallafent <william_at_[hidden]>  |        Type:  Patches         
   Status:  new                                     |   Milestone:  To Be Determined
Component:  None                                    |     Version:  release 1.34.0  
 Severity:  Problem                                 |    Keywords:  GIL             
----------------------------------------------------+-----------------------
 When loading or saving PNGs with bit depth 16 on a little endian
 architecture, the bytes in each channel were not being swapped to match
 PNG's big endian byte ordering. This patch switches this byte-swapping on
 in LibPNG when loading and saving PNGs of bit-depth 16 on a little-endian
 architecture.

 Patch is against GIL 2.1 release, but I submit it here rather than in the
 GIL sourceforge, since I gather GIL is now in Boost, as of the next Boost
 release! Let me know if this is not the right place for this patch. I note
 that there is no GIL component in this Trac yet, so I left that set to
 none.

-- 
Ticket URL: <http://svn.boost.org/trac/boost/ticket/1144>
Boost C++ Libraries <http://www.boost.org/>
Boost provides free peer-reviewed portable C++ source libraries.