[SDL] Java n' SDL

Alberto Jose Fernandez Garcia ajfg at gmv.es
Thu Apr 29 00:50:57 PDT 1999


Pheonix Kokido wrote:

> Sam Lantinga wrote:
>
>  > BTW, I've been asked for Java support, so if anyone knows anything about
>  > integrating Java and C/C++ applications, please let me know!
>  >      -Sam Lantinga                           (slouken at devolution.com)
>  >
>  > Lead Programmer, Loki Entertainment Software
>  > --
>  > Author of Simple DirectMedia Layer -
>  >      http://www.devolution.com/~slouken/SDL/
>  > --
>  >
>
> Well I hacked this message up pretty good ^o^.
>
> Anyway, to interface C/C++ and Java (Pre 1.2, don't know if anything changed), it's a textbook step procedure.
>
> Step 1:  Write the wrapper class (Java) for the code, it does'nt have to do anything really, but it has to have all of it's member functions in place.
>
> Step 2:  Run the javah program on the class created in step 1, it'll spit out a header.  Javah will require some addition arguments to generate new style headers (in 1.1 it was -jni).  The header it spits out will have some requirements, all of these are in java's include directory.
>
> Step 3:  Fill out the functions created in the header that was created by javah in step 2.  Compile the code and create a library file (dynamically linkable, -G under *NIXS)  Big thing here is to remember to put the library into the same directory that LD_LIBRARY_PATH points too.
>
> As long as the native code library created contains just ansi C/C++ and plain SDL calls it should work on any SDL/Java compatible enviroment.
>
> -Phoenix Kokido
>
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  If you like I can send you an example, for Visual C++ and JDK 1.1.3.
I believe there is not problems with other architectures.

Grettings

Alberto J. Fernandez





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