Merge pull request #22 from adambenhamo/RPiBinary

#20 Adding binaries for linux/arm

.gitignore

@@ -10,3 +10,4 @@ target
 .settings/org.eclipse.jdt.core.prefs
 .settings/org.eclipse.m2e.core.prefs
 opencv/**
+.metadata/

RELEASE.md

@@ -4,6 +4,43 @@
 
 ### 3.2.0
 
+#### Linux/Arm for Raspberry Pi
+
+* Install packages:
+```
+sudo apt-get update && sudo apt-get install oracle-java8-jdk cmake ant
+sudo apt-get install build-essential cmake pkg-config libpng12-0 libpng12-dev libpng++-dev libpng3 libpnglite-dev zlib1g-dbg zlib1g zlib1g-dev pngtools  libtiff4 libtiffxx0c2 libtiff-tools libjpeg8 libjpeg8-dev libjpeg8-dbg libjpeg-progs libavcodec-dev   libavformat-dev libgstreamer0.10-0-dbg libgstreamer0.10-0 libgstreamer0.10-dev  libunicap2 libunicap2-dev libdc1394-22-dev libdc1394-22 libdc1394-utils swig libv4l-0 libv4l-dev
+```
+* Change .bashrc to set JAVA_HOME, ANT_HOME and paths:
+
+```
+export ANT_HOME=/usr/share/ant/
+export PATH=${PATH}:${ANT_HOME}/bin
+export JAVA_HOME=/usr/lib/jvm/jdk-8-oracle-arm32-vfp-hflt/
+export PATH=$PATH:$JAVA_HOME/bin
+```
+
+* Download opencv:
+
+```
+wget https://github.com/opencv/opencv/archive/3.2.0.zip
+mv 3.2.0 opencv.zip
+unzip opencv.zip 
+cd opencv-3.2.0/
+```
+
+* Finally build using cmake:
+```
+mkdir build
+cd build
+cmake -D CMAKE_BUILD_TYPE=RELEASE -D WITH_OPENCL=OFF -D BUILD_PERF_TESTS=OFF -D BUILD_SHARED_LIBS=OFF -D JAVA_INCLUDE_PATH=$JAVA_HOME/include -D JAVA_AWT_LIBRARY=$JAVA_HOME/jre/lib/amd64/libawt.so -D JAVA_JVM_LIBRARY=$JAVA_HOME/jre/lib/arm/server/libjvm.so -D CMAKE_INSTALL_PREFIX=/usr/local ..
+make
+make install
+```
+
+* libopencv_java320.so can now be found in build/libs 
+
+
 #### Linux
 * Built on Ubuntu 16.04.1
 * Was having problems with HGFS, solved with: http://askubuntu.com/questions/591664/files-missing-in-mnt-hgfs-on-ubuntu-vm

src/main/java/nu/pattern/OpenCV.java

@@ -24,6 +24,8 @@ public class OpenCV {
 
   private final static Logger logger = Logger.getLogger(OpenCV.class.getName());
 
+
+
   static enum OS {
     OSX("^[Mm]ac OS X$"),
     LINUX("^[Ll]inux$"),
@@ -64,7 +66,8 @@ public static OS getCurrent() {
 
   static enum Arch {
     X86_32("i386", "i686", "x86"),
-    X86_64("amd64", "x86_64");
+    X86_64("amd64", "x86_64"),
+	  ARMv8("arm");
 
     private final Set<String> patterns;
 
@@ -111,7 +114,7 @@ public TemporaryDirectory() {
     public Path getPath() {
       return path;
     }
-    
+
 	public TemporaryDirectory deleteOldInstancesOnStart() {
 		Path tempDirectory = path.getParent();
 
@@ -330,6 +333,9 @@ private static Path extractNativeBinary(final OS os, final Arch arch) {
           case X86_64:
             location = "/nu/pattern/opencv/linux/x86_64/libopencv_java320.so";
             break;
+          case ARMv8:
+              location = "/nu/pattern/opencv/linux/ARMv8/libopencv_java320.so";
+              break;
           default:
             throw new UnsupportedPlatformException(os, arch);
         }
@@ -363,7 +369,7 @@ private static Path extractNativeBinary(final OS os, final Arch arch) {
 
     final InputStream binary = OpenCV.class.getResourceAsStream(location);
     final Path destination;
-    
+
     // Do not try to delete the temporary directory on the close if Windows
     // because there will be a write lock on the file which will cause an
     // AccessDeniedException. Instead, try to delete existing instances of
@@ -373,7 +379,7 @@ private static Path extractNativeBinary(final OS os, final Arch arch) {
     } else {
       destination = new TemporaryDirectory().markDeleteOnExit().getPath().resolve("./" + location).normalize();
     }
-	
+
     try {
       logger.log(Level.FINEST, "Copying native binary to \"{0}\".", destination);
       Files.createDirectories(destination.getParent());
@@ -387,4 +393,3 @@ private static Path extractNativeBinary(final OS os, final Arch arch) {
     return destination;
   }
 }
-