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      1 /*
      2  * Copyright (C) 2014 The Android Open Source Project
      3  *
      4  * Licensed under the Apache License, Version 2.0 (the "License");
      5  * you may not use this file except in compliance with the License.
      6  * You may obtain a copy of the License at
      7  *
      8  *      http://www.apache.org/licenses/LICENSE-2.0
      9  *
     10  * Unless required by applicable law or agreed to in writing, software
     11  * distributed under the License is distributed on an "AS IS" BASIS,
     12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
     13  * See the License for the specific language governing permissions and
     14  * limitations under the License.
     15  */
     16 package android.hardware.camera2.marshal.impl;
     17 
     18 import android.util.Size;
     19 import android.hardware.camera2.marshal.Marshaler;
     20 import android.hardware.camera2.marshal.MarshalQueryable;
     21 import android.hardware.camera2.utils.TypeReference;
     22 
     23 import static android.hardware.camera2.impl.CameraMetadataNative.*;
     24 import static android.hardware.camera2.marshal.MarshalHelpers.*;
     25 
     26 import java.nio.ByteBuffer;
     27 
     28 /**
     29  * Marshal {@link Size} to/from {@code TYPE_INT32}
     30  */
     31 public class MarshalQueryableSize implements MarshalQueryable<Size> {
     32     private static final int SIZE = SIZEOF_INT32 * 2;
     33 
     34     private class MarshalerSize extends Marshaler<Size> {
     35         protected MarshalerSize(TypeReference<Size> typeReference, int nativeType) {
     36             super(MarshalQueryableSize.this, typeReference, nativeType);
     37         }
     38 
     39         @Override
     40         public void marshal(Size value, ByteBuffer buffer) {
     41             buffer.putInt(value.getWidth());
     42             buffer.putInt(value.getHeight());
     43         }
     44 
     45         @Override
     46         public Size unmarshal(ByteBuffer buffer) {
     47             int width = buffer.getInt();
     48             int height = buffer.getInt();
     49 
     50             return new Size(width, height);
     51         }
     52 
     53         @Override
     54         public int getNativeSize() {
     55             return SIZE;
     56         }
     57     }
     58 
     59     @Override
     60     public Marshaler<Size> createMarshaler(TypeReference<Size> managedType, int nativeType) {
     61         return new MarshalerSize(managedType, nativeType);
     62     }
     63 
     64     @Override
     65     public boolean isTypeMappingSupported(TypeReference<Size> managedType, int nativeType) {
     66         return nativeType == TYPE_INT32 && (Size.class.equals(managedType.getType()));
     67     }
     68 }
     69