From 6dc9aab6ba8001110f50a648b446978a0cb03a05 Mon Sep 17 00:00:00 2001
From: tth <tth@fubar.tetalab.org>
Date: Mon, 5 Apr 2021 20:49:01 +0200
Subject: [PATCH] tweaking...

---
 tools/fimghalfsize.c | 19 ++++++++++++++-----
 1 file changed, 14 insertions(+), 5 deletions(-)

diff --git a/tools/fimghalfsize.c b/tools/fimghalfsize.c
index 32fce22..cd009b3 100644
--- a/tools/fimghalfsize.c
+++ b/tools/fimghalfsize.c
@@ -12,7 +12,7 @@
 int		verbosity;
 
 /* ------------------------------------------------------------- */
-int faire_un_halfsize(char *iname, char *oname, int notused)
+int faire_un_halfsize(char *iname, char *oname, int to_gray)
 {
 FloatImg	src, dst;
 int		foo;
@@ -30,6 +30,11 @@ if (foo) {
 	return -1;
 	}
 
+if (to_gray) {
+	foo = fimg_to_gray(&dst);
+
+	}
+
 foo = fimg_dump_to_file(&dst, oname, 0);
 if (foo) {
 	fprintf(stderr, "save to '%s' -> %d\n", oname, foo);
@@ -48,13 +53,15 @@ void help(int u)
 
 int main(int argc, char *argv[])
 {
-int		foo, opt, action;
+int		foo, opt;
 
 char		*srcname = "";
 char		*dstname = "out.fimg";
+int		grayed = 0;
 
-while ((opt = getopt(argc, argv, "hv")) != -1) {
+while ((opt = getopt(argc, argv, "ghv")) != -1) {
 	switch(opt) {
+		case 'g':	grayed = 1;			break;
 		case 'h':	help(0);			break;
 		case 'v':	verbosity++;			break;
 		}
@@ -68,10 +75,12 @@ if (2 != argc-optind) {
 srcname = argv[optind];
 dstname = argv[optind+1];
 
-fprintf(stderr, "%s:  optind: %d  src: %s  dst: %s\n", argv[0], optind,
+if (verbosity) {
+	fprintf(stderr, "%s:  src: %s  dst: %s\n", argv[0],
 				 srcname, dstname);
+	}
 
-foo = faire_un_halfsize(srcname, dstname, 0);
+foo = faire_un_halfsize(srcname, dstname, grayed);
 
 
 return 0;