From cf664780cb860078f4e06684d862ce4a2c981316 Mon Sep 17 00:00:00 2001
From: Paul Gilbert
Date: Tue, 14 Sep 2010 09:54:41 +0000
Subject: SWORD25: Bugfix to not draw off-screen images

svn-id: r53350
---
 engines/sword25/gfx/opengl/glimage.cpp | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

(limited to 'engines/sword25')

diff --git a/engines/sword25/gfx/opengl/glimage.cpp b/engines/sword25/gfx/opengl/glimage.cpp
index f5dac96039..038514ab32 100644
--- a/engines/sword25/gfx/opengl/glimage.cpp
+++ b/engines/sword25/gfx/opengl/glimage.cpp
@@ -226,13 +226,13 @@ bool GLImage::blit(int posX, int posY, int flipping, Common::Rect *pPartRect, ui
 
 	// Handle off-screen clipping
 	if (posY < 0) {
-		img->h -= -posY;
+		img->h = MAX(0, (int)img->h - -posY);
 		img->pixels = (byte *)img->pixels + img->pitch * -posY;
 		posY = 0;
 	}
 
 	if (posX < 0) {
-		img->w -= -posX;
+		img->w = MAX(0, (int)img->w - -posX);
 		img->pixels = (byte *)img->pixels + (-posX * 4);
 		posX = 0;
 	}
-- 
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