From: Steve Lhomme <robux@videolan.org>
Date: Fri, 18 Aug 2006 20:50:10 +0000 (+0000)
Subject: MSVC compatibility fix from Haali
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=1808700e26023fccfabec9e65ee7e4fb18ae57f2;p=libx264

MSVC compatibility fix from Haali

git-svn-id: svn://svn.videolan.org/x264/trunk@556 df754926-b1dd-0310-bc7b-ec298dee348c
---

diff --git a/common/common.h b/common/common.h
index ce3c27b5..a3973420 100644
--- a/common/common.h
+++ b/common/common.h
@@ -37,6 +37,11 @@
 #define X264_VERSION "" // no configure script for msvc
 #endif
 
+/* alloca */
+#ifdef _MSC_VER
+#define	alloca	_alloca
+#endif
+
 /* threads */
 #ifdef __WIN32__
 #include <windows.h>
diff --git a/common/pixel.c b/common/pixel.c
index fd557ff3..aabc69c3 100644
--- a/common/pixel.c
+++ b/common/pixel.c
@@ -379,9 +379,8 @@ float x264_pixel_ssim_wxh( x264_pixel_function_t *pf,
 {
     int x, y, z;
     float ssim = 0.0;
-    int sums[2][width/4+3][4];
-    int (*sum0)[4] = sums[0];
-    int (*sum1)[4] = sums[1];
+    int (*sum0)[4] = alloca(4 * (width/4+3) * sizeof(int));
+    int (*sum1)[4] = alloca(4 * (width/4+3) * sizeof(int));
     width >>= 2;
     height >>= 2;
     z = 0;