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• nate_02631
  
  

  • Rank: Senior
  • Registered: Sep 22, 2003
  • Last visit: Oct 21, 2009
  • Posts: 2774

  Posted: Jan 01, 2007 - 06:13 AM

  Hi,
  
  I have recently released a gallery module (RC1) that allows the user to upload images which are then scaled using GD 2 to generate a thumbnail and large image to the specifications.
  
  I understand that the PHP memory limit can be a factor, which I've adjusted, but no matter what I set it at, I can't get GD to scale an image larger than 2,048 pixels.
  
  I have an image function which handles the scaling. It follows this process:
  

  • It takes the image from the form post
    
  • determines if the image needs to be scaled (and calculates the new dimensions) and what format should be generated (based on config settings)
    
  • Then functions -> imagecreatefromjpeg/png(uploaded pic), imagecreatetruecolor(new image dimensions), imagecopyresampled (truecolor from orig image), imagejpeg/png and finally imagedestroy on temp and source image

  
  
  Wondering if anyone had any experience with GD that might be able to shed some light?
  
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• MMaynard
  
  

  • Rank: Expert
  • Registered: Mar 15, 2003
  • Last visit: Oct 21, 2009
  • Posts: 1221

  Posted: Jan 01, 2007 - 07:44 AM

  http://forums.devnetwork.net/viewtopic.php?p=240920&sid=d02eedfe51a4efc5f4ab17debab2ec0e
  
  Might give a clue, I am pretty clueless myself on GD though. ;)
  
  
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• nate_02631
  
  

  • Rank: Senior
  • Registered: Sep 22, 2003
  • Last visit: Oct 21, 2009
  • Posts: 2774

  Posted: Jan 01, 2007 - 07:55 AM

  Thanks MMaynard... actually I overlooked the fact that I had a a dimension check in the function that was returning false from the image function if greater than X pixels, so it looks like my only limit is the PHP memory... (I had adapted the function from prior use which had the check in there) - DOH!
  
  Thanks for the forum link. though, as I was looking for a way I might compute if I had enough memory before trying to process the image.
  
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