Re: [pygame] extending mask module?

[Lenard Lindstrom <len-l@xxxxxxxxx>]

Hi Michael,

bitmask.c is statically linked to mask.c as an object file. On Windows 
the distutils package ensures only the initmask function is exported as 
an entry point into the mask.pyd DLL. Unix dynamic libraries may be more 
liberal as to what is exported, but Python will only directly call the 
module initialization function, so no problem.

Setup.in controls extension builds. This is like a make file. Each 
extension module, like mask, has its own line, or dependency entry. A 
new C module can be added to an extension module by adding its source 
file to an extension module entry. Be sure to run config.py afterward to 
build the Setup file used by setup.py.

Lenard

Michael George wrote:
> Greetings,
[snip]
> I'd be happy to spend some time and submit a patch, but I'm not quite 
> sure how it should work.  Should mask.c access the bitmask.c functions 
> through the exported function table?  Should mask.c just #include 
> bitmask.c?  Any thoughts?

[from another post in this thread]
>
>  Understanding the build system(s) is a bit daunting.
> --Mike


--
Lenard Lindstrom
<len-l@xxxxxxxxx>