From: Toni Wilen <twilen@winuae.net>
Date: Sun, 16 Apr 2017 19:08:29 +0000 (+0300)
Subject: Realloc update.
X-Git-Tag: 3500~62
X-Git-Url: https://git.unchartedbackwaters.co.uk/w/?a=commitdiff_plain;h=af87ab3667531fb48a0a5a6bca174ec9f4dd9bf8;p=francis%2Fwinuae.git

Realloc update.
---

diff --git a/zfile.cpp b/zfile.cpp
index 0eb4f0ee..59c3618d 100644
--- a/zfile.cpp
+++ b/zfile.cpp
@@ -2250,13 +2250,11 @@ size_t zfile_fwrite (const void *b, size_t l1, size_t l2, struct zfile *z)
 			return 0;
 		}
 		if (off > z->allocsize) {
-			if (z->allocsize < off)
-				z->allocsize = off;
-			z->allocsize += z->size / 2;
-			if (z->allocsize < 10000)
-				z->allocsize = 10000;
+			int inc = (z->size / 2 + l1 * l2 + 7) & ~3;
+			if (inc < 10000)
+				inc = 10000;
+			z->allocsize += inc;
 			z->data = xrealloc (uae_u8, z->data, z->allocsize);
-			z->datasize = z->size = off;
 		}
 		memcpy (z->data + z->seek, b, l1 * l2);
 		z->seek += l1 * l2;