tree 588cc01e1a1ba1fbf8a344e862c927e4d2725d0e
parent f5dcba6b9bcd0495c544daea73e64bebfbe08faf
author John Bowler <jbowler@acm.org> 1332099581 -0500
committer Glenn Randers-Pehrson <glennrp@shaggy.simplesystems.org> 1332099581 -0500

[libpng16]  Work around for duplicate row start calls; added warning messages.

This turns on PNG_FLAG_DETECT_UNINITIALIZED to detect app code that
fails to call one of the 'start' routines (not enabled in libpng-1.5
because it is technically an API change, since it did normally work
before.)  It also makes duplicate calls to png_read_start_row (an
internal function called at the start of the image read) benign, as
they were before changes to use png_inflate_claim. Somehow webkit is
causing this to happen; this is probably a mis-feature in the zlib
changes so this commit is only a work-round.