From a09b3557c14e266e155f7a3a45baecffe7a29a04 Mon Sep 17 00:00:00 2001
From: dwsJason <JGAndersen@gmail.com>
Date: Sat, 1 Dec 2018 22:04:43 -0500
Subject: [PATCH] BlitRect:  when calling BlitRect adjust the sizes down by 1
 pixel in each dimension (which saves blittng up to 8 additional pixels in
 each dimension)

---
 src/sysvid.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/sysvid.c b/src/sysvid.c
index 6e60b46..9b1eff7 100644
--- a/src/sysvid.c
+++ b/src/sysvid.c
@@ -555,7 +555,7 @@ sysvid_update(rect_t *rects)
 			   rects->height
 		);
 		#endif
-		result = BlitRect(rects->x, rects->y, rects->width, rects->height);
+		result = BlitRect(rects->x, rects->y, rects->width-1, rects->height-1);
 		rects = rects->next;
 	}
 #endif