View Full Version : Qt 4.7.4 - problem with libpng
Lesiok
12th September 2011, 07:37
System Windows (Vista, WS-2003), Visual Studio C++ 2008.
After recompiling Qt 4.7.4 with libpng using PNG pictures generate warning :
libpng warning: Interlace handling should be turned on when using png_read_image
On Qt 4.7.2 problem don't exist. So question : how to build Qt.4.7.4 to suppress this problem ?
vcp
12th September 2011, 13:03
Hi,
The problem really exists.
QtSDK installed (4.7.4) and recompile an application (that works perfectly) that reads images .png,
and it crashes when trying to read any file .png.
Up to version 4.7.3 it didn't happen.
Thanks
Lesiok
14th September 2011, 12:01
After downgrading libpng to version from Qt 4.7.3 all is working perfect.
vcp
14th September 2011, 13:53
Hi,
I create a bug report about this issue.
https://bugreports.qt.nokia.com/browse/QTBUG-21408
Perhaps you can add your comments too.
vcp
20th September 2011, 12:16
Hi,
This bug was identified and will be fixed. See:
[ https://bugreports.qt.nokia.com/browse/QTBUG-21408?page=com.atlassian.jira.plugin.system.issuet abpanels:comment-tabpanel&focusedCommentId=164128#comment-164128 ]
Leonard Lee commented on QTBUG-21408:
-------------------------------------
This issue was fixed in QTBUG-13298 for Qt 4.8.
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