GRAPHICS: Fix conversion of a color with 1-bit alpha to ARGB.

residualvm · Jul 29, 2014 · bd5d9c9 · bd5d9c9
1 parent 44dc44d
commit bd5d9c9
Showing 1 changed file with 7 additions and 1 deletion.
diff --git a/graphics/pixelformat.h b/graphics/pixelformat.h
@@ -97,7 +97,13 @@ struct PixelFormat {
 	}
 
 	inline void colorToARGB(uint32 color, uint8 &a, uint8 &r, uint8 &g, uint8 &b) const {
-		a = (aBits() == 0) ? 0xFF : (((color >> aShift) << aLoss) & 0xFF);
+		if (aBits() == 0) {
+			a = 0xFF;
+		} else if (aBits() == 1) {
+			a = (color >> aShift) ? 0xFF : 0;
+		} else {
+			a = ((color >> aShift) << aLoss) & 0xFF;
+		}
 		r = ((color >> rShift) << rLoss) & 0xFF;
 		g = ((color >> gShift) << gLoss) & 0xFF;
 		b = ((color >> bShift) << bLoss) & 0xFF;