1 files changed, 57 insertions, 0 deletions
diff --git a/wsutil/color.h b/wsutil/color.h
new file mode 100644
index 0000000..794ba05
--- /dev/null
+++ b/wsutil/color.h
@@ -0,0 +1,57 @@
+/** @file
+ *
+ * Definitions for colors
+ *
+ * Wireshark - Network traffic analyzer
+ * By Gerald Combs <gerald@wireshark.org>
+ * Copyright 1998 Gerald Combs
+ *
+ * SPDX-License-Identifier: GPL-2.0-or-later
+ */
+#ifndef  __COLOR_H__
+#define  __COLOR_H__
+
+#ifdef __cplusplus
+extern "C" {
+#endif /* __cplusplus */
+
+#include <inttypes.h>
+
+/*
+ * Data structure holding RGB value for a color, 16 bits per channel.
+ */
+typedef struct {
+    uint16_t red;
+    uint16_t green;
+    uint16_t blue;
+} color_t;
+
+/*
+ * Convert a color_t to a 24-bit RGB value, reducing each channel to
+ * 8 bits and combining them.
+ */
+inline static unsigned int
+color_t_to_rgb(const color_t *color) {
+    return (((color->red >> 8) << 16)
+          | ((color->green >> 8) << 8)
+          | (color->blue >> 8));
+}
+
+#ifdef __cplusplus
+}
+#endif /* __cplusplus */
+
+#endif
+
+/*
+ * Editor modelines  -  https://www.wireshark.org/tools/modelines.html
+ *
+ * Local variables:
+ * c-basic-offset: 4
+ * tab-width: 8
+ * indent-tabs-mode: nil
+ * End:
+ *
+ * vi: set shiftwidth=4 tabstop=8 expandtab:
+ * :indentSize=4:tabSize=8:noTabs=true:
+ */