nv40: small bug

diff --git a/src/mesa/pipe/nv40/nv40_fragprog.c b/src/mesa/pipe/nv40/nv40_fragprog.c
index 105d793..bad5f00 100644 (file)
--- a/src/mesa/pipe/nv40/nv40_fragprog.c
+++ b/src/mesa/pipe/nv40/nv40_fragprog.c
@@ -312,7 +312,7 @@ src_native_swz(struct nv40_fpc *fpc, const struct tgsi_full_src_register *fsrc,
                        neg_mask |= (1 << c);
        }
 
-       if (mask == MASK_ALL)
+       if (mask == MASK_ALL && !neg_mask)
                return TRUE;
 
        *src = temp(fpc);