From eaa6183567b1c9b5726a77d30e885c8b299cae6e Mon Sep 17 00:00:00 2001
From: Chris Young <chris@unsatisfactorysoftware.co.uk>
Date: Fri, 10 Aug 2012 18:21:57 +0100
Subject: allow tweaking threshold where alpha turns to mask

---
 amiga/bitmap.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'amiga/bitmap.c')

diff --git a/amiga/bitmap.c b/amiga/bitmap.c
index a6c24b1af..e28b21463 100644
--- a/amiga/bitmap.c
+++ b/amiga/bitmap.c
@@ -495,7 +495,7 @@ static PLANEPTR ami_bitmap_get_mask(struct bitmap *bitmap, int width, int height
 
 	for(y=0; y<height; y++) {
 		for(x=0; x<width; x++) {
-			if ((*bmi & 0x000000ffU) == 0x00000000U) maskbit = 0;
+			if ((*bmi & 0x000000ffU) <= (ULONG)nsoption_int(mask_alpha)) maskbit = 0;
 				else maskbit = 1;
 			bmi++;
 			bitmap->native_mask[(y*(width/8)) + (x/8)] =
-- 
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