How to handle the wrappers generated by SWIG?

asked 2015-03-30 11:45:46 -0500

Gopi Krishnan gravatar image

My intension is to generate wrappers or bindings on top of C++ , for languages like java desktop,java andriod,python,c# and ios.

I found the tool called SWIG and tried. However, its hard to work with it for non-primitive data types.

I know that OpenCV community is automating the wrappers generation using either tools like SWIG or through some scripts exclusively written.

So far, from my analysis, i got to know that there are some scripts for C++ -> Python Bindings.

Can anyone help me to know the how opencv community handles wrapper generation?

Any help with tutorials, Source Codes would be great.

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Comments

2

they're not using swig. (that was tried, but discarded long ago).

look here, please.

also note, that there are java / android wrappers already , generated in the very same manner.

berak gravatar imageberak ( 2015-03-30 11:53:19 -0500 )edit

Thanks for your answer. Can you also send me the tutorials or any related documents to know how OpenCV automates the wrapper generation for java(desktop and android), C# ? If possible, can you please let us know the reason for dropping the SWIG?

Gopi Krishnan gravatar imageGopi Krishnan ( 2015-03-31 00:53:47 -0500 )edit
1

you could just try to run modules/java/generator/gen_java.py from the cmdline, to see, what it's doing ;)

(also, no idea about SWIG, but the downside with that is probably, that you still have to manually maintain, what's wrapped)

berak gravatar imageberak ( 2015-03-31 02:02:56 -0500 )edit
1

SWIG likes to tell us something else ;)

boaz001 gravatar imageboaz001 ( 2015-03-31 02:25:43 -0500 )edit

Thank you berak.. Let me just walk through it.. Is there any documented source to start up quickly or to understand it in a better way?...

Gopi Krishnan gravatar imageGopi Krishnan ( 2015-03-31 05:08:45 -0500 )edit

@berak , i found the gen2.py and tried to generate the python wrappers,but having issues. Please see the link

Gopi Krishnan gravatar imageGopi Krishnan ( 2015-04-01 10:48:01 -0500 )edit