private synchronized Producer < CloseableReference < CloseableImage > > getBitmapPrepareSequence ( Producer < CloseableReference < CloseableImage > > inputProducer ) { Producer < CloseableReference < CloseableImage >> bitmapPrepareProducer = mBitmapPrepareSequences . get ( inputProducer ) ; if ( bitmapPrepareProducer == null ) { bitmapPrepareProducer = mProducerFactory . newBitmapPrepareProducer ( inputProducer ) ; mBitmapPrepareSequences . put ( inputProducer , bitmapPrepareProducer ) ; } return bitmapPrepareProducer ; }
bitmap prepare producer - > inputProducer