From: vincent dot k dot hughitt at nasa dot gov Operating system: Ubuntu 9.04, Fedora 11 PHP version: 5.2.9 PHP Bug Type: GD related Bug description: imagecolorset no longer behaving properly in newer versions of PHP
Description: ------------ I wrote a small piece of code using that uses the GD module to apply a color-table to a gray-scale image. In newer versions of PHP, however, the script only outputs grayscale images, with no error message. Furthermore, outputting the contents of imagecolorsforindex shows that the script is still reading the palette properly, so it must have something to do with the next step (imagecolorset). Any ideas? =========================================================== System 1 (non-working): Ubuntu 9.04 Linux 2.6.28-11-generic PHP 5.2.6-3ubuntu4.1 with Suhosin-Patch 0.9.6.2 (cli) (built: Apr 23 2009 14:35:05) gd 2.0.36~rc1~dfsg-3ubuntu1 =========================================================== System 2 (non-working): Fedora 11 Beta Linux 2.6.29.1-111.fc11.i586 PHP 5.2.9 gd 2.0.35 =========================================================== System 3 (WORKING): Ubuntu 8.10 Linux 2.6.27-11-generic PHP 5.2.6-2ubuntu4.1 with Suhosin-Patch 0.9.6.2 (cli) (built: Feb 11 2009 20:38:24) gd 2.0.36~rc1~dfsg-3ubuntu1 =========================================================== (Originally reported downstream at: https://bugs.edge.launchpad.net/ubuntu/+source/php5/+bug/368036) Reproduce code: --------------- /** * Takes a grayscale PNG and modifies it's index to use 256-color * lookup table then outputs it as an 8-bit JPEG image, or 8-bit * paletted PNG. * * Sample image and color-table: * * http://launchpadlibrarian.net/26034594/eit_grayscale.png * http://launchpadlibrarian.net/26034597/ctable_eit304.png */ $gd = imagecreatefrompng("eit_grayscale.png"); $ctable = imagecreatefrompng("ctable_eit304.png"); for ($i = 0; $i <= 255; $i++) { $rgba = imagecolorsforindex($ctable, $i); imagecolorset($gd, $i, $rgba["red"], $rgba["green"], $rgba["blue"]); } imagejpeg($gd, "eit_final.jpg", 75); imagedestroy($gd); imagedestroy($ctable); Expected result: ---------------- Outputs a 8-bit color JPEG. (http://launchpadlibrarian.net/26034598/eit_final_ubuntu810.jpg) Actual result: -------------- Outputs a 8-bit grayscale JPEG. (http://launchpadlibrarian.net/26034602/eit_final_ubuntu904.jpg) -- Edit bug report at http://bugs.php.net/?id=48123&edit=1 -- Try a CVS snapshot (PHP 5.2): http://bugs.php.net/fix.php?id=48123&r=trysnapshot52 Try a CVS snapshot (PHP 5.3): http://bugs.php.net/fix.php?id=48123&r=trysnapshot53 Try a CVS snapshot (PHP 6.0): http://bugs.php.net/fix.php?id=48123&r=trysnapshot60 Fixed in CVS: http://bugs.php.net/fix.php?id=48123&r=fixedcvs Fixed in CVS and need be documented: http://bugs.php.net/fix.php?id=48123&r=needdocs Fixed in release: http://bugs.php.net/fix.php?id=48123&r=alreadyfixed Need backtrace: http://bugs.php.net/fix.php?id=48123&r=needtrace Need Reproduce Script: http://bugs.php.net/fix.php?id=48123&r=needscript Try newer version: http://bugs.php.net/fix.php?id=48123&r=oldversion Not developer issue: http://bugs.php.net/fix.php?id=48123&r=support Expected behavior: http://bugs.php.net/fix.php?id=48123&r=notwrong Not enough info: http://bugs.php.net/fix.php?id=48123&r=notenoughinfo Submitted twice: http://bugs.php.net/fix.php?id=48123&r=submittedtwice register_globals: http://bugs.php.net/fix.php?id=48123&r=globals PHP 4 support discontinued: http://bugs.php.net/fix.php?id=48123&r=php4 Daylight Savings: http://bugs.php.net/fix.php?id=48123&r=dst IIS Stability: http://bugs.php.net/fix.php?id=48123&r=isapi Install GNU Sed: http://bugs.php.net/fix.php?id=48123&r=gnused Floating point limitations: http://bugs.php.net/fix.php?id=48123&r=float No Zend Extensions: http://bugs.php.net/fix.php?id=48123&r=nozend MySQL Configuration Error: http://bugs.php.net/fix.php?id=48123&r=mysqlcfg
