test/utils.c: Use pow(), not powf() in sRGB conversion routines

These functions are operating on double precision values, so use pow()
instead of powf().

diff --git a/test/utils.c b/test/utils.c
index df16ef5..c922ae5 100644 (file)
--- a/test/utils.c
+++ b/test/utils.c
@@ -772,7 +772,7 @@ convert_srgb_to_linear (double c)
     if (c <= 0.04045)
         return c / 12.92;
     else
-        return powf ((c + 0.055) / 1.055, 2.4);
+        return pow ((c + 0.055) / 1.055, 2.4);
 }
 
 double
@@ -781,7 +781,7 @@ convert_linear_to_srgb (double c)
     if (c <= 0.0031308)
         return c * 12.92;
     else
-        return 1.055 * powf (c, 1.0/2.4) - 0.055;
+        return 1.055 * pow (c, 1.0/2.4) - 0.055;
 }
 
 void