From 95c87008cf7446752b90d7f2da21c807d5765f07 Mon Sep 17 00:00:00 2001
From: Chris Young <chris@unsatisfactorysoftware.co.uk>
Date: Mon, 24 Aug 2009 22:23:17 +0000
Subject: Stop the alpha channel getting lost on scaled bitmaps

svn path=/trunk/netsurf/; revision=9439
---
 amiga/bitmap.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

(limited to 'amiga/bitmap.c')

diff --git a/amiga/bitmap.c b/amiga/bitmap.c
index 425f8473d..0041073af 100644
--- a/amiga/bitmap.c
+++ b/amiga/bitmap.c
@@ -364,9 +364,9 @@ struct BitMap *ami_getcachenativebm(struct bitmap *bitmap,int width,int height,s
 		if(GfxBase->lib_Version >= 53) // AutoDoc says v52, but this function isn't in OS4.0, so checking for v53 (OS4.1)
 		{
 			uint32 comptype = COMPOSITE_Src;
-			uint32 flags = COMPFLAG_IgnoreDestAlpha;
+			uint32 flags = 0;
 
-			if(!bitmap->opaque) comptype = COMPOSITE_Src_Over_Dest;
+			if(bitmap->opaque) flags |= COMPFLAG_IgnoreDestAlpha;
 			if(option_scale_quality) flags |= COMPFLAG_SrcFilter;
 
 			CompositeTags(comptype,tbm,scaledbm,
-- 
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