From a1fae1a38fc3cdb82e379a069fce886cb3fa88ae Mon Sep 17 00:00:00 2001
From: Tavian Barnes <tavianator@gmail.com>
Date: Wed, 13 Jan 2010 16:21:28 -0500
Subject: Clean up internal raytracing API a bit.

---
 libdimension/dimension/color.h | 5 +++++
 1 file changed, 5 insertions(+)

(limited to 'libdimension/dimension/color.h')

diff --git a/libdimension/dimension/color.h b/libdimension/dimension/color.h
index 67fa032..43edbff 100644
--- a/libdimension/dimension/color.h
+++ b/libdimension/dimension/color.h
@@ -25,6 +25,8 @@
 #ifndef DIMENSION_COLOR_H
 #define DIMENSION_COLOR_H
 
+#include <stdbool.h>
+
 /* Internally, we use sRGB color. */
 typedef struct {
   double filter, trans; /* Filter transparancy only lets light of this color
@@ -67,6 +69,9 @@ extern const dmnsn_color dmnsn_black, dmnsn_white, dmnsn_red, dmnsn_green,
 /* Standard whitepoint, determined by the conversion of sRGB white to CIE XYZ */
 extern const dmnsn_CIE_XYZ dmnsn_whitepoint;
 
+/* Is this color black? */
+bool dmnsn_color_is_black(dmnsn_color color);
+
 /* Color conversions */
 
 dmnsn_color dmnsn_color_from_XYZ(dmnsn_CIE_XYZ XYZ);
-- 
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