moving things around...

funcs/Makefile

@@ -2,7 +2,7 @@
 
 COPT = -Wall -fpic -g  -no-pie -pg -DDEBUG_LEVEL=0
 DEPS = ../floatimg.h Makefile
-OBJS = fimg-png.o fimg-tiff.o misc-plots.o filtrage.o
+OBJS = fimg-png.o fimg-tiff.o misc-plots.o filtrage.o utils.o
 
 #---------------------------------------------------------------
 
@@ -20,3 +20,6 @@ misc-plots.o:		misc-plots.c $(DEPS)
 
 filtrage.o:		filtrage.c $(DEPS)
 	gcc $(COPT) -c $<
+
+utils.o:		utils.c $(DEPS)
+	gcc $(COPT) -c $<

funcs/utils.c

@@ -0,0 +1,31 @@
+
+
+#include  <stdio.h>
+
+
+#include  "../floatimg.h"
+
+extern int verbosity;		/* must be declared around main() */
+
+/* --------------------------------------------------------------------- */
+int parse_WxH(char *str, int *pw, int *ph)
+{
+// char			*ptr;
+int			foo, w, h;
+
+#if DEBUG_LEVEL
+fprintf(stderr, ">>> %s ( '%s' %p %p )\n", __func__,
+				str, pw, ph);
+#endif
+
+foo = sscanf(str, "%dx%d", &w, &h);
+if (2 != foo) {
+	fprintf(stderr, "%s : arg '%s' is invalid\n", __func__, str);
+	return foo;
+	}
+
+*pw = w;	*ph = h;
+
+return 2;
+}
+/* --------------------------------------------------------------------- */