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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
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 (profile)
Status: Closed Package: GD related
PHP Version: 5.1.2 OS: Linux
Private report: No CVE-ID: None
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 [2006-03-11 15:14 UTC] kraus at phoenixwebsolutions dot de
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:
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);
$text_color = ImageColorAllocate ($im, 233, 14, 91);

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



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 [2006-03-13 19:53 UTC]
Assigned to the maintainer.
 [2006-03-13 22:56 UTC]
This bug has been fixed in CVS.

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