John Bowler 1775bdeb24 Better filter checking
Improve pngvalid coverage of filter combinations, remove the (new in 1.7) code
which disabled previous-row filters on the first row of an image in some cases.

Signed-off-by: John Bowler <jbowler@acm.org>
2015-11-24 22:24:18 -08:00
..
2015-11-23 18:14:57 -08:00
2015-09-14 17:57:40 -07:00
2015-11-24 22:24:18 -08:00