• Interop with C in Clojure
• problem
• Java & C Binding
  • JNI
  • JNA
  • JNR
  • SKIP JavaCPP
  • Panama
  • performance check
• JNI Example
• JNA Example
• JNR Example
• SKIP JavaCPP Example
• Panama Example
• JNA Example (SDL2)
• Panama Example (SDL2)
• SDL
• SDL Language Bindings
• CommonLisp?
• Java?
• Clojure?
• java interop types

• slideshare

• How to load library.
• writing wrapper function.
• C structure layout for pointer access.

• https://docs.oracle.com/javase/8/docs/technotes/guides/jni/
• from JDK 1.1

• https://github.com/java-native-access/jna

• https://github.com/jnr/jnr-ffi
  • jnr-ffi is a Java library for loading native libraries without writing JNI code by hand, or using tools such as SWIG.
• https://www.slideshare.net/skrb/jnr-java-native-runtime
• https://www.oracle.com/technetwork/java/jvmls2013nutter-2013526.pdf

• https://openjdk.java.net/projects/panama/
• https://download.java.net/java/early_access/panama/docs/api/java.base/java/foreign/package-summary.html
• Panama: A Foreign Policy for Java by Maurizio Cimadamore
• Going Meta to Valhalla & Panama with John Rose

https://github.com/yulewei/java-ffi-demo JNI > JNR > JNA (Direct Mapping) > JNA (Interface Mapping)

1. prepare native c library
2. writing && compile interop java file
3. generate interop c header
4. writing && c`mpile interop c library
5. writing && build clojure project with interop java file
6. call clojure library with native c library and interop c library

1. prepare native c library
2. writing && build clojure project

1. prepare native c library
2. writing && build clojure project

SDL2(C language) binding in clojure

SDL2(C language) binding in clojure

• Simple DirectMedia Layer
• cross-platform development library.
• designed to provide low level access to audio, keyboard, mouse, joystick, and graphics hardware
• via OpenGL and Direct3D

https://www.libsdl.org/languages.php

Ada C# D Go Lua OCaml Pascal Python Rust

• lispbuilder-sdl - https://github.com/lispbuilder/lispbuilder

• java: https://github.com/javasdl/libjavasdl JNA

• Demo clojure with SDL2 (panama)
  • https://www.youtube.com/watch?v=40cvevHg0J8

• https://www.slideshare.net/SeanLo4/jnainfo-52738038