[mapserver-dev] regression in phpmapscript ?

Jeff McKenna jmckenna at dmsolutions.ca
Thu Mar 20 09:51:41 EDT 2008


Can one of the phpmapscript devs help Oliver out?  I can only find an 
old ticket related to pasteImage transparency: 
http://trac.osgeo.org/mapserver/ticket/463

The latest MS4W also upgraded GD to 2.0.35 in its MapServer support, but 
I don't know if this affects the issue.

-jeff



Oliver Christen wrote:
> Hi,
> 
> I have observed some kind of regression in the way the php_mapscript 
> function "pasteImage" behave in a php_mapscript compiled for Mapserver 
> 5.2.0 / PHP 5.2.5 (typicaly the one available in the latest MS4W package)
> 
> In this version, the pasteImage only handle the transparency correctly 
> for 8bit images (as it is clearly stated in the documentation "Note" at 
> the bottom 
> http://mapserver.gis.umn.edu/docs/reference/phpmapscript-class/classes/imageobj) 
> 
> 
> BUT, until before these versions of php/mapserver, the transparency 
> worked fine with 16bit images (jpeg for example)
> The latest working version I have is a php_mapscript compiled for 
> Mapserver 5.0.2 / PHP 5.2.0
> 
> So, my questions are:
> 
> was it really normal for the pasteImage function to handle transparency 
> for 16bit images until recently ? because the "Note" seems to imply it 
> is not.
> 
> was there any recent code modification in php mapscript's function 
> pasteImage ?
> 
> what could have possibly changed between php 5.2.0 and 5.2.5 that would 
> change the behaviour of the pasteImage function ?
> I looked at php's changelog but couldnt find any clue beside the fact 
> libGD was updated to 2.0.35 in PHP 5.2.2, but again I couldnt notice any 
> significant info in libGD changelog.
> 
> thanks in advance
> 
> Oliver Christen
> 
> 



-- 
Jeff McKenna
DM Solutions Group Inc.
http://www.dmsolutions.ca


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