[mapserver-dev] renderer api committed

[thomas bonfort]

Hi all,

I've (finally) committed the mapserver6 sandbox back into trunk. the
msautotest suite indicates a consequent number of failed tests, but
most of them are due to some subtle rendering differences.

Of notable importance when using this:

* compilation requires libpng, libjpeg and gif headers. the gif
configure script is a bit awkward for now, you have to use
--with-gif=/usr even if gif_lib.h is in the default INCLUDE path
* GD renderer only supports PC256 mode. if your outputformats use RGB
or RGBA modes, you'll get switched to AGG.
* using symbols as brushes along a line is not (yet) supported
* PDF, SVG is rendered through cairo
* SWF is not implemented, and should not be enabled (it won't compile)
* opengl backend can be enabled

I'm nearly certain that this change will break some things, especially
if you've been using more or less documented hacks for fine tuning
symbology, so please excuse me in advance for that and report back so
we can iron things out until the release.

best regards,

thomas