added and debugged first filter function

funcs/t.c

@@ -12,6 +12,40 @@ int		verbosity;
 
 float		global_fvalue;
 
+/* --------------------------------------------------------------------- */
+int essai_filtrage(char *infile)
+{
+FloatImg	fimg;
+int		foo, idx;
+char		buffer[100];
+
+if (NULL != infile) {
+	fprintf(stderr, "loading %s\n", infile);
+	foo = fimg_create_from_dump(infile, &fimg);
+	if (foo) {
+		fprintf(stderr, "%s: err load '%s'\n", __func__, infile);
+		return foo;
+		}
+	}
+else	{
+	fprintf(stderr, "%s is creating the picz\n", __func__);
+	fimg_create(&fimg, 512, 512, FIMG_TYPE_RGB);
+	fimg_draw_something(&fimg);
+	}
+
+foo = fimg_save_as_pnm(&fimg, "source.pnm", 0);
+
+for (idx=0; idx<20; idx++) {
+	foo = fimg_lissage_2x2(&fimg);
+	foo = fimg_killborders(&fimg);
+	sprintf(buffer, "filter%03d.pnm", idx);
+	foo = fimg_save_as_pnm(&fimg, buffer, 0);
+	}
+
+fimg_destroy(&fimg);
+
+return 0;
+}
 /* --------------------------------------------------------------------- */
 int essai_geometrie(char *infile)
 {
@@ -173,6 +207,7 @@ return 0;
 int main(int argc, char *argv[])
 {
 int		foo, opt;
+char		*filename;
 
 puts("++++++++++++++++++++++++++++++++");
 
@@ -186,9 +221,14 @@ while ((opt = getopt(argc, argv, "hk:v")) != -1) {
 		}
 	}
 
-foo = essai_geometrie("foo.fimg");
+fprintf(stderr, "argc %d   optind %d\n", argc, optind);
+
+filename = NULL;
+if (1 == argc-optind)	filename = argv[optind];
+
+foo = essai_filtrage(filename);
 if (foo) {
-	fprintf(stderr, "************ %d\n", foo);
+	fprintf(stderr, "====> %d\n", foo);
 	}
 
 return 0;