mesa: fix out of bounds array access in rtgc debug code

Fixes https://bugs.freedesktop.org/show_bug.cgi?id=39841
This would only be hit if someone set RGTC_DEBUG=1.

diff --git a/src/mesa/main/texcompress_rgtc_tmp.h b/src/mesa/main/texcompress_rgtc_tmp.h
index c8bf082a15846940bbebd5aa10c6ef0bdaddf291..48bbd374e08b18c6ee8eedf3e5ce618cf49344ae 100644 (file)
--- a/src/mesa/main/texcompress_rgtc_tmp.h
+++ b/src/mesa/main/texcompress_rgtc_tmp.h
@@ -181,7 +181,7 @@ static void TAG(encode_rgtc_chan)(TYPE *blkaddr, TYPE srccolors[4][4],
       fprintf(stderr, "%d ", alphaenc1[i]);
    }
    fprintf(stderr, "cutVals ");
-   for (i = 0; i < 8; i++) {
+   for (i = 0; i < 7; i++) {
       fprintf(stderr, "%d ", acutValues[i]);
    }
    fprintf(stderr, "srcVals ");