mesa: minor clean-up on _mesa_unclamped_float_rgba_to_ubyte()

Add a comment and reformat to be under 80 columns.

1 files changed, 7 insertions, 1 deletions

diff --git a/src/mesa/main/colormac.h b/src/mesa/main/colormac.h
index 923c5a37c33..4b7c3b4a0c2 100644
--- a/src/mesa/main/colormac.h
+++ b/src/mesa/main/colormac.h
@@ -168,13 +168,19 @@ do {						\
    UNCLAMPED_FLOAT_TO_CHAN((dst)[3], (f)[3]);	\
 } while (0)
 
-static inline void _mesa_unclamped_float_rgba_to_ubyte(GLubyte dst[4], const GLfloat src[4])
+
+/**
+ * Convert four float values in [0,1] to ubytes in [0,255] with clamping.
+ */
+static inline void
+_mesa_unclamped_float_rgba_to_ubyte(GLubyte dst[4], const GLfloat src[4])
 {
    int i;
    for (i = 0; i < 4; i++)
       UNCLAMPED_FLOAT_TO_UBYTE(dst[i], src[i]);
 }
 
+
 /**
  * \name Generic color packing macros.  All inputs should be GLubytes.
  *