Last modified: 2010-05-15 15:38:49 UTC

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Bug 2780 - Thumbnails not working with GD
Thumbnails not working with GD
Product: MediaWiki
Classification: Unclassified
File management (Other open bugs)
PC Linux
: Normal normal (vote)
: ---
Assigned To: Brion Vibber
: 2720 (view as bug list)
Depends on:
  Show dependency treegraph
Reported: 2005-07-10 06:42 UTC by Juliano F. Ravasi
Modified: 2010-05-15 15:38 UTC (History)
2 users (show)

See Also:
Web browser: ---
Mobile Platform: ---
Assignee Huggle Beta Tester: ---


Description Juliano F. Ravasi 2005-07-10 06:42:14 UTC
After having a problem with the thumbnails on my wiki, I tracked what seems to
be a bug in Image::reallyRenderThumb(). Thanks Brion for the help!.

The offending piece of code is about line 1018:

  # Use PHP's builtin GD library functions.
  # First find out what kind of file this is, and select the correct
  # input routine for this.

  $truecolor = false;
  switch( $this->type ) {
    case 1: # GIF
      $src_image = imagecreatefromgif( $this->imagePath );

The problem is that $this->type contained the string "BITMAP", and is being
compared to integers. The image type is not recognized and the thumbnail
generation fails.
Comment 1 JeLuF 2005-07-11 00:08:28 UTC
Which PHP and GD versions do you use?

The manual page says that
the type is an integer, it doesn't mention that there are any versions returning
Comment 2 Juliano F. Ravasi 2005-07-11 00:41:02 UTC
You got it wrong. Image::type is holding a value returned by MimeMagic class.
Comment 3 Brion Vibber 2005-07-11 01:19:23 UTC
Working on this.
Comment 4 Brion Vibber 2005-07-11 01:54:20 UTC
Fixed in CVS HEAD.

Now uses the mime types to choose which way to load the image.
Comment 5 Zigger 2005-07-14 03:33:11 UTC
*** Bug 2720 has been marked as a duplicate of this bug. ***

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