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Bug #50269 getting and setting (new) transparant color error
Submitted: 2009-11-23 10:39 UTC Modified: 2009-11-23 10:57 UTC
From: ericbruggema at hotmail dot com Assigned: pajoye (profile)
Status: Not a bug Package: GD related
PHP Version: 5.3SVN-2009-11-23 (SVN) OS: WinXP Sp3 dutch
Private report: No CVE-ID: None
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 [2009-11-23 10:39 UTC] ericbruggema at hotmail dot com 
Description:
------------
The problem is that when reading a transparant color from an existing image in some cases can't be used to set the transparant color for new images.

Reproduce code:
---------------
$im = imagecreatefromgif("image.gif");

$trnprt_indx  = imagecolortransparent($im); 
$trnprt_color = @imagecolorsforindex($im, $trnprt_indx); // error line


Expected result:
----------------
imagecolorsforindex() [<a href='function.imagecolorsforindex'>function.imagecolorsforindex</a>]: Color index 251 out of range

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 [2009-11-23 10:55 UTC] pajoye@php.net 
if the image is a palette image and has only 10 colors, trying to use the color 11 will obviously fail.
 [2009-11-23 10:57 UTC] ericbruggema at hotmail dot com 
er?? the current image will be copied to a new image (thumb) but i'd like to keep the current 'transparant' color, but this gives an error... looks like the index for the transparant color (current image) doesn't exists in the color palette... (current image)
 
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