#30863 [Opn->Bgs]: imagecolortransparent and imagetruecolortopalette don't mix

ID: 30863 Updated by: pajoye@php.net Reported By: hp at oeri dot ch -Status: Open +Status: Bogus Bug Type: GD related Operating System: Windows XP PHP Version: 5.0.2 -Assigned To: +Assigned To: pajoye New Comment: Thank you for taking the time to write to us, but this is not a bug. Please double-check the documentation available at http://www.php.net/manual/ and the instructions on how to report a bug at http://bugs.php.net/how-to-report.php Use dithering to get out of that. The color approximation (even with 2colors..) is "better". --Pierre Previous Comments: ------------------------------------------------------------------------ [2004-11-22 16:53:06] hp at oeri dot ch Description: ------------ If I create a truecolor image and a) set a color as transparent b) use imagetruecolortopalette the result is offset by one in "x" direction and a black vertical line at x=0. Leaving out either a or b gives the correct result (no offset). Didn't find this bug anywhere, am however unable to compile on Windows. Reproduce code: --------------- <?php header( "Content-Type: image/png" ); $im = imagecreatetruecolor( 750, 400 ); $bg = imagecolorallocate( $im, 0xFF, 0xAA, 0xAA ); imagecolortransparent( $im, $bg ); // EITHER THIS imagefilledrectangle( $im, 0, 0, 749, 399, $bg ); $c2 = imagecolorallocate( $im, 0x01, 0x23, 0x45 ); imagerectangle( $im, 0, 0, 749, 399, $c2 ); imagetruecolortopalette( $im, false, 256 ); // OR THAT imagepng( $im ); ?> Expected result: ---------------- palette image, 750x400 with a rectangle along the borders Actual result: -------------- palette image, 750x400, with a rectangle open to the right (offset 1) ------------------------------------------------------------------------ -- Edit this bug report at http://bugs.php.net/?id=30863&edit=1