[mapserver-dev] regression in phpmapscript ?

[Daniel Morissette]

The only things I can think of to explain this kind of behavior change 
would be either some change in GD, or some side-effect related to the 
addition of AGG support in MapServer 5.0.

Which version were you (Oliver) using before? Was it 4.10? If ThomasB is 
listening he might have some idea?

Daniel


Jeff McKenna wrote:
> 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
>>
>>
> 
> 
> 


-- 
Daniel Morissette
http://www.mapgears.com/