blendmode.diff

diff --git a/openfl/display/BitmapData.hx b/openfl/display/BitmapData.hx
index 55a2209..01eeff2 100644
--- a/openfl/display/BitmapData.hx
+++ b/openfl/display/BitmapData.hx
@@ -484,6 +484,14 @@ class BitmapData implements IBitmapDrawable {
 			renderSession.maskManager.pushRect (clipRect, new Matrix ());
 			
 		}
+
+		var blendModeCache = renderSession.blendModeManager.currentBlendMode;
+
+		if (blendMode != null) {
+			
+			renderSession.blendModeManager.setBlendMode (blendMode);
+			
+		}
 		
 		var matrixCache = source.__worldTransform;
 		source.__updateTransforms(matrix != null ? matrix : new Matrix ());
@@ -498,6 +506,12 @@ class BitmapData implements IBitmapDrawable {
 			
 		}
 		
+		if (blendMode != null) {
+			
+			renderSession.blendModeManager.setBlendMode (blendModeCache);
+			
+		}
+		
 		surface.flush ();
 		
 		image.dirty = true;