commit : DWPT and Wavelet Tree added

test/wtreetest.c

@@ -0,0 +1,47 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <math.h>
+#include "../header/wavelib.h"
+
+int main() {
+	int i, J, N, len;
+	int X, Y;
+	wave_object obj;
+	wtree_object wt;
+	double *inp, *oup;
+
+	char *name = "db3";
+	obj = wave_init(name);// Initialize the wavelet
+	N = 147;
+	inp = (double*)malloc(sizeof(double)* N);
+	for (i = 1; i < N + 1; ++i) {
+		inp[i - 1] = -0.25*i*i*i + 25 * i *i + 10 * i;
+	}
+	J = 3;
+
+	wt = wtree_init(obj, N, J);// Initialize the wavelet transform object
+	setWTREEExtension(wt, "sym");// Options are "per" and "sym". Symmetric is the default option
+
+	wtree(wt, inp);
+	wtree_summary(wt);
+	X = 3;
+	Y = 5;
+	len = getWTREENodelength(wt, X);
+	printf("\n %d", len);
+	printf("\n");
+	oup = (double*)malloc(sizeof(double)* len);
+
+	printf("Node [%d %d] Coefficients : \n",X,Y);
+	getWTREECoeffs(wt, X, Y, oup, len);
+	for (i = 0; i < len; ++i) {
+		printf("%g ", oup[i]);
+	}
+	printf("\n");
+
+	free(inp);
+	free(oup);
+	wave_free(obj);
+	wtree_free(wt);
+	return 0;
+}