*(int *)(dst + i) = p;
}
} else {
-#define OP_SUB(x, s, l) x + s
+#define OP_SUB(x, s, l) ((x) + (s))
UNROLL_FILTER(OP_SUB);
}
break;
p = (last[i] >> 1);
dst[i] = p + src[i];
}
-#define OP_AVG(x, s, l) (((x + l) >> 1) + s) & 0xff
+#define OP_AVG(x, s, l) (((((x) + (l)) >> 1) + (s)) & 0xff)
UNROLL_FILTER(OP_AVG);
break;
case PNG_FILTER_VALUE_PAETH: