From: Toni Wilen <twilen@winuae.net>
Date: Sun, 14 May 2023 17:32:27 +0000 (+0300)
Subject: Fix horizontal offset in bitplanes if bitplane was active behind left horizontal... 
X-Git-Tag: 5.0.0~42
X-Git-Url: https://git.unchartedbackwaters.co.uk/w/?a=commitdiff_plain;h=0c8f676747e6cd37cabb7e4a3b086789dea05571;p=francis%2Fwinuae.git

Fix horizontal offset in bitplanes if bitplane was active behind left horizontal blanking.
---

diff --git a/drawing.cpp b/drawing.cpp
index 91ec019c..e3968aa9 100644
--- a/drawing.cpp
+++ b/drawing.cpp
@@ -3671,6 +3671,10 @@ static void do_color_changes(line_draw_func worker_border, line_draw_func worker
 					if (nextpos_in_range > lastpos && lastpos < playfield_start) {
 						int t = nextpos_in_range <= playfield_start ? nextpos_in_range : playfield_start;
 						(*worker_border)(lastpos, t, 0);
+						// if playfield starts before hblank end: adjust back to playfield start
+						if (t > playfield_start) {
+							t = playfield_start;
+						}
 						lastpos = t;
 					}