# HG changeset patch
# User Matti Hamalainen <ccr@tnsp.org>
# Date 1349160258 -10800
# Node ID ba1987562a735b6b50ca7a746f9c21eca7155876
# Parent  5cefa59baa9dc2491f0dae2dd0a4808f929679bc
Fix 8to8 saturated scaled blit function.

diff -r 5cefa59baa9d -r ba1987562a73 dmblitfunc.h
--- a/dmblitfunc.h	Tue Oct 02 05:55:28 2012 +0300
+++ b/dmblitfunc.h	Tue Oct 02 09:44:18 2012 +0300
@@ -231,7 +231,10 @@
 #define DM_SCALED_DST_BYTES 1
 #define DM_SCALED_SRC_TYPE Uint8
 #define DM_SCALED_DST_TYPE Uint8
-#define DM_SCALED_INNER *(dp++) += sp[FP_GETH(xv)];
+#define DM_SCALED_INNER \
+    const Uint8 q = sp[FP_GETH(xv)] + *dp; \
+    *(dp++) = q < 256 ? q : 255;
+
 #include "dmscaledblit.h"
 
 // -----------------------------------------------------------------------