Index: postproc/swscale.c
===================================================================
RCS file: /cvsroot/mplayer/main/postproc/swscale.c,v
retrieving revision 1.148
diff -u -r1.148 swscale.c
--- postproc/swscale.c	21 Jan 2005 16:48:18 -0000	1.148
+++ postproc/swscale.c	21 Jan 2005 17:18:28 -0000
@@ -61,6 +61,14 @@
 #else
 #include <stdlib.h>
 #endif
+#ifdef HAVE_SYS_MMAN_H
+#include <sys/types.h>
+#include <sys/mman.h>
+#include <limits.h>    /* for PAGESIZE */
+#ifndef PAGESIZE
+#define PAGESIZE 4096
+#endif
+#endif
 #include "swscale.h"
 #include "swscale_internal.h"
 #include "../cpudetect.h"
@@ -1999,6 +2007,18 @@
 // can't downscale !!!
 		if(c->canMMX2BeUsed && (flags & SWS_FAST_BILINEAR))
 		{
+#ifdef HAVE_SYS_MMAN_H
+			void *y = (void *)(((intptr_t)c->funnyYCode - (PAGESIZE-1)) & ~(PAGESIZE-1));
+			void *uv = (void *)(((intptr_t)c->funnyUVCode - (PAGESIZE-1)) & ~(PAGESIZE-1));
+			int y_s = ((void*)c->funnyYCode-y) + sizeof(c->funnyYCode);
+			int uv_s = ((void*)c->funnyUVCode-uv) + sizeof(c->funnyUVCode);
+			if (mprotect(y, y_s,
+				     PROT_EXEC | PROT_READ | PROT_WRITE) ||
+			    mprotect(uv, uv_s,
+				     PROT_EXEC | PROT_READ | PROT_WRITE))
+				MSG_ERR("swScaler: generated code may be NX\n");
+#endif
+
 			c->lumMmx2Filter   = (int16_t*)memalign(8, (dstW        /8+8)*sizeof(int16_t));
 			c->chrMmx2Filter   = (int16_t*)memalign(8, (c->chrDstW  /4+8)*sizeof(int16_t));
 			c->lumMmx2FilterPos= (int32_t*)memalign(8, (dstW      /2/8+8)*sizeof(int32_t));