From 026edffed4e5738c7b362919618b77797aee8c2f Mon Sep 17 00:00:00 2001
From: NorbiPeti <szatmari.norbert.peter@gmail.com>
Date: Wed, 14 Nov 2018 23:00:25 +0100
Subject: [PATCH] Java-C connection works

Pointers can be passed freely
---
 .gitignore                                    |  2 ++
 .../src/sznp/virtualcomputer/PXCLib.java      |  5 +++++
 .../src/sznp/virtualcomputer/Test.java        | 19 +++++++++++++++++++
 libpxc/makefile                               |  1 +
 libpxc/pxc.c                                  | 10 ++++++++++
 5 files changed, 37 insertions(+)
 create mode 100644 VirtualComputer/src/sznp/virtualcomputer/PXCLib.java
 create mode 100644 VirtualComputer/src/sznp/virtualcomputer/Test.java

diff --git a/.gitignore b/.gitignore
index f144156..cea9d96 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,3 +1,5 @@
+libpxc.so
+
 ## Ignore Visual Studio temporary files, build results, and
 ## files generated by popular Visual Studio add-ons.
 
diff --git a/VirtualComputer/src/sznp/virtualcomputer/PXCLib.java b/VirtualComputer/src/sznp/virtualcomputer/PXCLib.java
new file mode 100644
index 0000000..eb373a1
--- /dev/null
+++ b/VirtualComputer/src/sznp/virtualcomputer/PXCLib.java
@@ -0,0 +1,5 @@
+package sznp.virtualcomputer;
+
+public interface PXCLib {
+	int convert(int[] px, long[] out);
+}
diff --git a/VirtualComputer/src/sznp/virtualcomputer/Test.java b/VirtualComputer/src/sznp/virtualcomputer/Test.java
new file mode 100644
index 0000000..6d6f171
--- /dev/null
+++ b/VirtualComputer/src/sznp/virtualcomputer/Test.java
@@ -0,0 +1,19 @@
+package sznp.virtualcomputer;
+
+import com.sun.jna.Native;
+import com.sun.jna.Pointer;
+import jnr.ffi.LibraryLoader;
+
+import java.io.File;
+import java.nio.ByteBuffer;
+
+public class Test {
+	public static void main(String[] args) {
+		System.out.println(new File("").getAbsolutePath());
+		PXCLib pxc = LibraryLoader.create(PXCLib.class).search(new File("").getAbsolutePath()).load("pxc");
+		ByteBuffer bb = ByteBuffer.allocateDirect(2);
+		long[] x = new long[]{Pointer.nativeValue(Native.getDirectBufferPointer(bb))};
+		pxc.convert(new int[]{5, 10}, x);
+		System.out.println(bb.get(0)); //19 AYY
+	}
+}
diff --git a/libpxc/makefile b/libpxc/makefile
index c695180..b4745c1 100644
--- a/libpxc/makefile
+++ b/libpxc/makefile
@@ -7,4 +7,5 @@ pxct: pxct.c pxc
 pxc: pxc.c
 	$(CC) -Wall -c -fpic pxc.c -o obj/pxc.o
 	$(CC) -Wall -shared obj/pxc.o -o out/libpxc.so
+	cp out/libpxc.so ../
 
diff --git a/libpxc/pxc.c b/libpxc/pxc.c
index 176f1a0..bc47f53 100644
--- a/libpxc/pxc.c
+++ b/libpxc/pxc.c
@@ -1,7 +1,17 @@
 #include <stdio.h>
 
+typedef long long int lli;
+
+void* image=NULL;
+
+void setSource(lli address) {
+	image=(void*)address;
+}
+
 int convert(int px[], int *out[]) {
 	printf("convert...\n");
+	printf("px0: %d\n", px[0]);
+	*out[0]=19;
 	return 0;
 }