#50610 [NEW]: imagerotate transparent gif some angles invert new background

From: ceo at l-i-e dot com Operating system: N/A PHP version: 5.2.12 PHP Bug Type: GD related Bug description: imagerotate transparent gif some angles invert new background Description: ------------ imagerotate for a transparent input GIF, trying to output a transparent output GIF. At various angles it will fill the new / expanded background with the wrong (non-transparent black) color. This may be the same as http://bugs.php.net/bug.php?id=44429 but I can't tell without the other guy's image either... It could also be related to http://bugs.php.net/bug.php?id=39366 somehow, but that pre-dates this quite a bit, and is supposedly fixed in CVS (now SVN). Plus that's PNG not GIF, though there may be shared code at work. I do have a nice repro for you below. NOTE: This happened to me in PHP 5.2.5, and it's conceivable that it has been fixed, but it has also been confirmed in 5.2.6 by Jochem Maas: [quote] I tested on PHP5.2.6, with the following GD installed: GD Version bundled (2.0.34 compatible) FreeType Support enabled FreeType Linkage with freetype FreeType Version 2.3.7 GIF Read Support enabled GIF Create Support enabled JPG Support enabled PNG Support enabled WBMP Support enabled XPM Support enabled XBM Support enabled I get the same result as you. I played with it a bit and the issue 'seems' to revolve around transparency in the original gif. I got the following code to output what you want but I have no idea if it's usable for you (you may be relying on the transparency in the original gif): Reproduce code: --------------- http://www.6112northwolcott.com/dogfight/rotate.phps Expected result: ---------------- All the images in the actual result should have white / transparent backgrounds, unless I'm being particularly dense today. Actual result: -------------- http://www.6112northwolcott.com/dogfight/rotate.htm -- Edit bug report at http://bugs.php.net/?id=50610&edit=1 -- Try a snapshot (PHP 5.2): http://bugs.php.net/fix.php?id=50610&r=trysnapshot52 Try a snapshot (PHP 5.3): http://bugs.php.net/fix.php?id=50610&r=trysnapshot53 Try a snapshot (PHP 6.0): http://bugs.php.net/fix.php?id=50610&r=trysnapshot60 Fixed in SVN: http://bugs.php.net/fix.php?id=50610&r=fixed Fixed in SVN and need be documented: http://bugs.php.net/fix.php?id=50610&r=needdocs Fixed in release: http://bugs.php.net/fix.php?id=50610&r=alreadyfixed Need backtrace: http://bugs.php.net/fix.php?id=50610&r=needtrace Need Reproduce Script: http://bugs.php.net/fix.php?id=50610&r=needscript Try newer version: http://bugs.php.net/fix.php?id=50610&r=oldversion Not developer issue: http://bugs.php.net/fix.php?id=50610&r=support Expected behavior: http://bugs.php.net/fix.php?id=50610&r=notwrong Not enough info: http://bugs.php.net/fix.php?id=50610&r=notenoughinfo Submitted twice: http://bugs.php.net/fix.php?id=50610&r=submittedtwice register_globals: http://bugs.php.net/fix.php?id=50610&r=globals PHP 4 support discontinued: http://bugs.php.net/fix.php?id=50610&r=php4 Daylight Savings: http://bugs.php.net/fix.php?id=50610&r=dst IIS Stability: http://bugs.php.net/fix.php?id=50610&r=isapi Install GNU Sed: http://bugs.php.net/fix.php?id=50610&r=gnused Floating point limitations: http://bugs.php.net/fix.php?id=50610&r=float No Zend Extensions: http://bugs.php.net/fix.php?id=50610&r=nozend MySQL Configuration Error: http://bugs.php.net/fix.php?id=50610&r=mysqlcfg