1 files changed, 25 insertions, 0 deletions
diff --git a/libgamma_const_of_subpixel_order.c b/libgamma_const_of_subpixel_order.c
new file mode 100644
index 0000000..7f69bea
--- /dev/null
+++ b/libgamma_const_of_subpixel_order.c
@@ -0,0 +1,25 @@
+/* See LICENSE file for copyright and license details. */
+#include "common.h"
+
+
+/**
+ * Get the name of the constant for a subpixel order,
+ * for example "LIBGAMMA_SUBPIXEL_ORDER_HORIZONTAL_RGB"
+ * for `LIBGAMMA_SUBPIXEL_ORDER_HORIZONTAL_RGB`
+ * 
+ * @param   order  The subpixel order
+ * @return         The name of the constant for subpixel order,
+ *                 `NULL` if not recognised (errno is not changed)
+ */
+const char *
+libgamma_const_of_subpixel_order(int order)
+{
+	switch (order) {
+#define X(CONST, NAME)\
+	case CONST: return #CONST;
+	LIST_SUBPIXEL_ORDERS(X)
+#undef X
+	default:
+		return NULL;
+	}
+}