using c++ library in processing.org

user93

Is it possible to write processing library in c++ and access it in regular sketch . If it is done like that would it speed up the sketch? and are there any processing libraries that does that?

GoToLoop

http://www.OpenFrameworks.cc/

user93

yes i do know about open frame works but what i am asking is writing part of the code in c++ (like libraries etc..) not all of it in processing.

MenteCode

You can try to use Java's JNI. It's a lot of complicated stuff, and I wouldn't know how well it would work with Processing (since I've never tried this), but if you're up for digging around, here's a link that could get you started: http://www.ibm.com/developerworks/java/tutorials/j-jni/j-jni.html

GoToLoop

• As @MenteCode shown us, native calls is the standard way for Java to access code compiled in other programming languages.
• However, unless it's some code w/ lotsa arrays and very complicated maths, any speed gains would be minimal.
• Actually, JNI is mostly used for hardware access only, since Java lacks full pointers.
• Although Java has a "secret" library called Unsafe, which grants us full pointer access. ;)

PhiLho

JNI or JNA.
But for pure algorithm, Java's JIT compiler might perform better than compiled C++, in some cases...
That said, in general, the bottleneck is in the display itself, which can be solved by using OpenGL, shaders, etc.