Clarify a couple of comments

diff --git a/pixman/pixman-combine.h.template b/pixman/pixman-combine.h.template
index 5e62b4b..3b92e56 100644 (file)
--- a/pixman/pixman-combine.h.template
+++ b/pixman/pixman-combine.h.template
@@ -49,7 +49,7 @@
     } while (0)
 
 /*
-  x_c = (x_c * a) / 255 + y
+  x_c = (x_c * a) / 255 + y_c
 */
 #define FbByteMulAdd(x, a, y) do {                                      \
         /* multiply and divide: trunc((i + 128)*257/65536) */           \
@@ -133,7 +133,7 @@
     } while (0)
 
 /*
-  x_c = (x_c * a_c) / 255 + y
+  x_c = (x_c * a_c) / 255 + y_c
 */
 #define FbByteMulAddC(x, a, y) do {                                     \
         comp4_t t;                                                      \