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Bug #36697 Transparency is lost when using imagecreatetruecolor
Submitted: 2006-03-11 15:14 UTC Modified: 2006-03-13 22:56 UTC
Votes:1
Avg. Score:5.0 ± 0.0
Reproduced:1 of 1 (100.0%)
Same Version:1 (100.0%)
Same OS:0 (0.0%)
From: kraus at phoenixwebsolutions dot de Assigned: pajoye
Status: Closed Package: GD related
PHP Version: 5.1.2 OS: Linux
Private report: No CVE-ID:
 [2006-03-11 15:14 UTC] kraus at phoenixwebsolutions dot de
Description:
------------
If the function imagecreatetruecolor function is used instead of imagecreate the transparent color seems to get lost when scaling down the color palette if the image is exported as gif.

Reproduce code:
---------------
<?php
header ("Content-type: image/png");
$im = @imagecreatetruecolor(50, 100)
      or die ("Kann keinen neuen GD-Bild-Stream erzeugen");
#$im = @imagecreate(50, 100)
#      or die ("Kann keinen neuen GD-Bild-Stream erzeugen");
$background_color = ImageColorAllocate ($im, 100, 100, 100);
$rect_color = ImageColorAllocate ($im, 200, 0, 0);
ImageFilledRectangle($im,0,0,50,100,$backgroundcolor);
ImageFilledRectangle($im,0,0,50,50,$rect_color);
$text_color = ImageColorAllocate ($im, 233, 14, 91);

ImageString ($im, 1, 5, 5, "Ein Test-String", $text_color);
$res = imagecolortransparent($im, $background_color);
#var_dump($res);var_dump($background_color);
ImageGIF($im);

?>



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History

AllCommentsChangesGit/SVN commitsRelated reports
 [2006-03-13 19:53 UTC] tony2001@php.net
Assigned to the maintainer.
 [2006-03-13 22:56 UTC] pajoye@php.net
This bug has been fixed in CVS.

Snapshots of the sources are packaged every three hours; this change
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