[ms4w-users] MS4W MrSID Plugin

[Jeff McKenna]

thanks Frank.  I've created a bug to at least add the gdalplugins folder 
and the GDAL_DRIVER_PATH setting for the next release.

jeff





Frank Warmerdam wrote:
> Folks,
> 
> I successfully prepared and tested MrSID Plugin support with MS4W 1.0.1
> on behalf of a client.   It works fine though I had to do a wee bit of hacking
> to get the latested GDAL MrSID code compiled with GDAL 1.2.5 used
> in MS4W. 
> 
> If anyone needs this I could prepare an MS4W 1.0.1 compiled zip, though
> you would still need to download the MrSID SDK separately. 
> 
> My approach was to:
> 
>  o Build a GDAL plugin for the driver for the corresponding version of
>     GDAL (1.2.5) which produced a "gdal_MrSID.dll". 
> 
>  o Dump that into C:\ms4w\gdalplugins
> 
>  o Download the Lizardtech DLL and dump into C:\ms4w\apache\cgi-bin
> 
>  o Add "SetEnv GDAL_DRIVER_PATH \MS4W" to the httpd.conf.
> 
> I could have tried replacing the whole GDAL12.DLL with a 1.2.5
> build that included MrSID support but I was worried about breaking 
> other things. 
> 
> It would be kind of nice if the MS4W package had the C:\MS4W\gdalplugins
> directory "out of the box" in the future, along with the GDAL_DRIVER_PATH
> setting.  If Assefa was feeling ambitious he could even build the MrSID
> plugin and distribute it in C:\MS4W\gdalplugins\ignored.  Then folks who
> want to use it could just download the Lizardtech DLLs themselves, 
> and then move the plugin DLL up one level.
> 
> Best regards,


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