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Bug #25476 imagecopymergegray() crashes
Submitted: 2003-09-10 15:25 UTC Modified: 2003-09-18 06:03 UTC
From: ernesto at music dot lv Assigned:
Status: No Feedback Package: GD related
PHP Version: 4.3.3 OS: *
Private report: No CVE-ID: None
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From: ernesto at music dot lv
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 [2003-09-10 15:25 UTC] ernesto at music dot lv 
Description:
------------
when using imagecopymergegray with pct value of 100, everything is fine, i.e., imagecopymergegray works exactly as imagecopy. but, when setting pct value to 99 or less, apache crashes.

Reproduce code:
---------------
$pic1 = imagecreatefromjpeg("my.jpg"); // 100x100px
$pic2 = imagecreatetruecolor(100, 100);

imacecopy($pic2, $pic1, 0, 0, 0, 0, 100, 100);
imagecopymergegray($pic2, $pic1, 0, 0, 0, 0, 100, 100, 50);

imagejpeg($pic2,"my2.jpg");
imagedestroy($pic2);


Expected result:
----------------
my2.jpg - slightly saturated version of my.jpg.

Actual result:
--------------
a crash.

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 [2003-09-10 15:36 UTC] derick@php.net 
Thank you for this bug report. To properly diagnose the problem, we
need a backtrace to see what is happening behind the scenes. To
find out how to generate a backtrace, please read
http://bugs.php.net/bugs-generating-backtrace.php

Once you have generated a backtrace, please submit it to this bug
report and change the status back to "Open". Thank you for helping
us make PHP better.
 [2003-09-10 19:54 UTC] sniper@php.net 
Works fine for me. If you can provide the image you tried with, that would help a lot. Also the configure line you used to configure PHP helps.
 [2003-09-18 06:03 UTC] sniper@php.net 
No feedback was provided. The bug is being suspended because
we assume that you are no longer experiencing the problem.
If this is not the case and you are able to provide the
information that was requested earlier, please do so and
change the status of the bug back to "Open". Thank you.
 
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