From 74ff79e90bb2862e8c84867ff50f56675c1b4c7e Mon Sep 17 00:00:00 2001
From: Einar Johan Trøan Sømåen
Date: Sat, 2 Jun 2012 14:28:58 +0200
Subject: WINTERMUTE: Implement IsTransparentAtLite, to fix the
 BitmapFont-drawing.

---
 engines/wintermute/Base/BSurfaceSDL.cpp | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/engines/wintermute/Base/BSurfaceSDL.cpp b/engines/wintermute/Base/BSurfaceSDL.cpp
index 0b16f3d39b..af41231968 100644
--- a/engines/wintermute/Base/BSurfaceSDL.cpp
+++ b/engines/wintermute/Base/BSurfaceSDL.cpp
@@ -361,6 +361,16 @@ bool CBSurfaceSDL::IsTransparentAtLite(int X, int Y) {
 		warning("CBSurfaceSDL::IsTransparentAtLite not ported yet");
 		hasWarned = true;
 	}
+	if (_surface->format.bytesPerPixel == 4) {
+		uint32 pixel = *(uint32*)_surface->getBasePtr(X, Y);
+		uint8 r,g,b,a;
+		_surface->format.colorToARGB(pixel, a, r, g, b);
+		if (a <= 128) {
+			return true;
+		} else {
+			return false;
+		}
+	}
 #if 0
 	uint32 format;
 	int access;
-- 
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