From 6cb4950db4a9b9b9edba927bb6a22fe8d1d16fb9 Mon Sep 17 00:00:00 2001
From: Thomas Harte <thomas.harte@gmail.com>
Date: Wed, 16 Nov 2016 11:53:15 +0800
Subject: [PATCH] Improved run-off area.

---
 Outputs/CRT/CRT.cpp | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/Outputs/CRT/CRT.cpp b/Outputs/CRT/CRT.cpp
index b722fab26..4b453b143 100644
--- a/Outputs/CRT/CRT.cpp
+++ b/Outputs/CRT/CRT.cpp
@@ -370,7 +370,9 @@ Outputs::CRT::Rect CRT::get_rect_for_area(int first_line_after_sync, int number_
 {
 	first_cycle_after_sync *= _time_multiplier;
 	number_of_cycles *= _time_multiplier;
-	number_of_lines++;
+
+	first_line_after_sync -= 2;
+	number_of_lines += 4;
 
 	// determine prima facie x extent
 	unsigned int horizontal_period = _horizontal_flywheel->get_standard_period();