From cc7cd15efaba131ccb9e169778928c9d7f27d098 Mon Sep 17 00:00:00 2001
From: NorbiPeti <szatmari.norbert.peter@gmail.com>
Date: Wed, 14 Nov 2018 19:15:58 +0100
Subject: [PATCH] Test lib with makefile

640*480*4 bytes are a lot to process one-by-one
---
 libpxc/.gitignore |  3 +++
 libpxc/makefile   | 10 ++++++++++
 libpxc/pxc.c      | 19 +++++++++++++++++++
 libpxc/pxct.c     | 15 +++++++++++++++
 4 files changed, 47 insertions(+)
 create mode 100644 libpxc/.gitignore
 create mode 100644 libpxc/makefile
 create mode 100644 libpxc/pxc.c
 create mode 100644 libpxc/pxct.c

diff --git a/libpxc/.gitignore b/libpxc/.gitignore
new file mode 100644
index 0000000..4f3a132
--- /dev/null
+++ b/libpxc/.gitignore
@@ -0,0 +1,3 @@
+obj/
+out/
+
diff --git a/libpxc/makefile b/libpxc/makefile
new file mode 100644
index 0000000..c695180
--- /dev/null
+++ b/libpxc/makefile
@@ -0,0 +1,10 @@
+CC=gcc
+# CFLAGS=-I.
+
+pxct: pxct.c pxc
+	$(CC) -Wall pxct.c -Lout -lpxc -Wl,-rpath=out -o out/pxct
+
+pxc: pxc.c
+	$(CC) -Wall -c -fpic pxc.c -o obj/pxc.o
+	$(CC) -Wall -shared obj/pxc.o -o out/libpxc.so
+
diff --git a/libpxc/pxc.c b/libpxc/pxc.c
new file mode 100644
index 0000000..176f1a0
--- /dev/null
+++ b/libpxc/pxc.c
@@ -0,0 +1,19 @@
+#include <stdio.h>
+
+int convert(int px[], int *out[]) {
+	printf("convert...\n");
+	return 0;
+}
+
+void __attribute__ ((constructor)) initLibrary(void) {
+ //
+ // Function that is called when the library is loaded
+ //
+    printf("Library is initialized\n"); 
+}
+void __attribute__ ((destructor)) cleanUpLibrary(void) {
+ //
+ // Function that is called when the library is »closed«.
+ //
+    printf("Library is exited\n"); 
+}
diff --git a/libpxc/pxct.c b/libpxc/pxct.c
new file mode 100644
index 0000000..a23e5b3
--- /dev/null
+++ b/libpxc/pxct.c
@@ -0,0 +1,15 @@
+#include <stdio.h>
+
+/* https://www.cprogramming.com/tutorial/shared-libraries-linux-gcc.html
+gcc -Wall -c -fpic pxc.c
+gcc -Wall -shared pxc.o -o pxc.so
+gcc -Wall pxct.c -L. -lpxc -Wl,-rpath=.
+*/
+
+int convert(int px[], int *out[]);
+
+int main() {
+	convert(NULL, NULL);
+	return 0;
+}
+