From 9ec9c639ddb475aae1a06c7cfe9cb1726db68908 Mon Sep 17 00:00:00 2001
From: James R <justsomejames2@gmail.com>
Date: Tue, 28 May 2019 15:08:33 -0700
Subject: [PATCH] Revert "Revert "Fix Post Processing in 64-bit Software
 3P/4P""

This reverts commit 392f357b1af90dc4caa7e770ea87aedba78fb2de.
---
 src/v_video.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/v_video.c b/src/v_video.c
index 1f8bb6777..9233eda42 100644
--- a/src/v_video.c
+++ b/src/v_video.c
@@ -292,7 +292,7 @@ void VID_BlitLinearScreen(const UINT8 *srcptr, UINT8 *destptr, INT32 width, INT3
 #ifdef HAVE_VIDCOPY
     VID_BlitLinearScreen_ASM(srcptr,destptr,width,height,srcrowbytes,destrowbytes);
 #else
-	if (srcrowbytes == destrowbytes)
+	if ((srcrowbytes == destrowbytes) && (srcrowbytes == (size_t)width))
 		M_Memcpy(destptr, srcptr, srcrowbytes * height);
 	else
 	{