r300: Added a comment in r300VAPInputCntl0.

diff --git a/src/mesa/drivers/dri/r300/r300_emit.c b/src/mesa/drivers/dri/r300/r300_emit.c
index 2390d9be65395b3d27c71bcad537c76c36ce72d8..c1b795f81493dd0a60a6cc0941c4b45e28d9bcb3 100644 (file)
--- a/src/mesa/drivers/dri/r300/r300_emit.c
+++ b/src/mesa/drivers/dri/r300/r300_emit.c
@@ -257,7 +257,8 @@ static GLuint r300VAPInputRoute1(uint32_t * dst, int swizzle[][4], GLuint nr)
 
 static GLuint r300VAPInputCntl0(GLcontext * ctx, GLuint InputsRead)
 {
-       /* Hard coded value, no idea what it means */
+       /* No idea what this value means. I have seen other values written to
+        * this register... */
        return 0x5555;
 }