From b64f1002c5702a9a05259ba66ffcc25b326cc461 Mon Sep 17 00:00:00 2001
From: Max Horn
Date: Sat, 27 Nov 2004 19:06:50 +0000
Subject: Fix for bug #1067982 (DIG: Parallax scrolling in library semi-broken)

svn-id: r15923
---
 scumm/bomp.cpp | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

(limited to 'scumm')

diff --git a/scumm/bomp.cpp b/scumm/bomp.cpp
index 406e37c36c..ef8b0304e7 100644
--- a/scumm/bomp.cpp
+++ b/scumm/bomp.cpp
@@ -235,11 +235,11 @@ void ScummEngine::drawBomp(const BompDrawData &bd, bool mirror) {
 	src = bd.dataptr;
 	dst = (byte *)bd.dst.pixels + bd.y * bd.dst.pitch + (bd.x + clip.left);
 
-	const byte maskbit = revBitMask[(bd.x + clip.left) & 7];
+	const byte maskbit = revBitMask[(bd.x + clip.left + virtscr[0].xstart) & 7];
 
 	// Mask against any additionally imposed mask
 	if (bd.maskPtr) {
-		mask = bd.maskPtr + (bd.y * gdi._numStrips) + ((bd.x + clip.left) / 8);
+		mask = bd.maskPtr + (bd.y * gdi._numStrips) + ((bd.x + clip.left + (virtscr[0].xstart&7)) / 8);
 	}
 
 	// Setup vertical scaling
-- 
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