From: Toni Wilen <twilen@winuae.net>
Date: Wed, 24 Aug 2016 16:12:16 +0000 (+0300)
Subject: Low latency vsync fix.
X-Git-Tag: 3400~116
X-Git-Url: https://git.unchartedbackwaters.co.uk/w/?a=commitdiff_plain;h=47bb2a1e9cc9974628ff36ecd43c8609f5a55a1b;p=francis%2Fwinuae.git

Low latency vsync fix.
---

diff --git a/od-win32/win32gfx.cpp b/od-win32/win32gfx.cpp
index a9f64781..fbe431a1 100644
--- a/od-win32/win32gfx.cpp
+++ b/od-win32/win32gfx.cpp
@@ -3148,10 +3148,10 @@ static bool getvblankpos (int *vp, bool updateprev)
 	}
 	if (maxscanline > minscanline) {
 		sl += scanline_adjust;
-		while (sl < 0)
-			sl += maxscanline;
+		while (sl < -1)
+			sl += maxscanline + 2;
 		while (sl > maxscanline)
-			sl -= maxscanline;
+			sl -= maxscanline + 2;
 	}
 	*vp = sl;
 	return true;