Re: Accessing another extensions resource.. possible?

On Sat, Aug 13, 2005 at 10:06:59AM -0600, Sean wrote: > I have a question regarding resource management in PHP that I would > absolutely appreciate any insight on- > > Can extension A get access to a resource created by extension B? For > example- if I wanted to add in a new image function, could I get access to > the GD extension's gdImage struct? > > I wrote an improved Breshenham line algorithm in php that renders the most > beautiful antialiased lines I've ever seen. The problem is the php > implementation for it is UBER slow. Hence I'm looking into writing my own > extension to give it a speed boost. But I'm having a hard time finding the > right approach to this. > > There's three ways I'm thinking this can be done- > 1. Write my own extension based on GD from scratch > 2. Inject my line drawing function into gd.h and gd.c (so it'd be a modified > version of the gd extension that comes with php) > 3. Write my own extension that is capable of accessing the gdImage struct > from the GD extensions. > > I'd prefer not to write an entire image library from scratch. But I'll do > it if 2 and 3 aren't possible/reasonable. Have a look at the pdf extension. It can take over an image created by gd extension and place it into a pdf document. It is possible but in the past there were problems with compiling the pdf extension outside the php-src tree, because the gd header files were not installed in /usr/local/include/php4. I think this is now fixed. That should make option 3 feasable. Uwe -- MMK GmbH, Universitaetsstr. 11, 58097 Hagen Uwe.Steinmann@mmk-hagen.de Tel: +2331 840446 Fax: +2331 843920