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-rw-r--r--src/blind-colour-srgb.c10
1 files changed, 8 insertions, 2 deletions
diff --git a/src/blind-colour-srgb.c b/src/blind-colour-srgb.c
index e5d1925..c7a5d91 100644
--- a/src/blind-colour-srgb.c
+++ b/src/blind-colour-srgb.c
@@ -1,7 +1,7 @@
/* See LICENSE file for copyright and license details. */
#include "common.h"
-USAGE("[-d depth] [-l] red green blue")
+USAGE("[-% format] [-d depth] [-l] red green blue")
int
main(int argc, char *argv[])
@@ -9,6 +9,7 @@ main(int argc, char *argv[])
unsigned long long int max;
double red, green, blue, X, Y, Z;
int depth = 8, linear = 0;
+ const char *fmt = NULL;
ARGBEGIN {
case 'd':
@@ -17,6 +18,9 @@ main(int argc, char *argv[])
case 'l':
linear = 1;
break;
+ case '%':
+ fmt = UARGF();
+ break;
default:
usage();
} ARGEND;
@@ -24,6 +28,8 @@ main(int argc, char *argv[])
if (argc != 3)
usage();
+ fmt = select_print_format("%! %! %!\n", DOUBLE, fmt);
+
max = 1ULL << (depth - 1);
max |= max - 1;
red = etolf_arg("the red value", argv[0]) / (double)max;
@@ -36,7 +42,7 @@ main(int argc, char *argv[])
}
srgb_to_ciexyz(red, green, blue, &X, &Y, &Z);
- printf("%.50lf %.50lf %.50lf\n", X, Y, Z);
+ printf(fmt, X, Y, Z);
efshut(stdout, "<stdout>");
return 0;
}