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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.hardware.camera2.marshal.Marshaler;
     19 import android.hardware.camera2.marshal.MarshalQueryable;
     20 import android.hardware.camera2.params.RggbChannelVector;
     21 import android.hardware.camera2.utils.TypeReference;
     22 
     23 import java.nio.ByteBuffer;
     24 
     25 import static android.hardware.camera2.impl.CameraMetadataNative.*;
     26 import static android.hardware.camera2.marshal.MarshalHelpers.*;
     27 
     28 /**
     29  * Marshal {@link RggbChannelVector} to/from {@link #TYPE_FLOAT} {@code x 4}
     30  */
     31 public class MarshalQueryableRggbChannelVector implements MarshalQueryable<RggbChannelVector> {
     32     private static final int SIZE = SIZEOF_FLOAT * RggbChannelVector.COUNT;
     33 
     34     private class MarshalerRggbChannelVector extends Marshaler<RggbChannelVector> {
     35         protected MarshalerRggbChannelVector(TypeReference<RggbChannelVector> typeReference,
     36                 int nativeType) {
     37             super(MarshalQueryableRggbChannelVector.this, typeReference, nativeType);
     38         }
     39 
     40         @Override
     41         public void marshal(RggbChannelVector value, ByteBuffer buffer) {
     42             for (int i = 0; i < RggbChannelVector.COUNT; ++i) {
     43                 buffer.putFloat(value.getComponent(i));
     44             }
     45         }
     46 
     47         @Override
     48         public RggbChannelVector unmarshal(ByteBuffer buffer) {
     49             float red = buffer.getFloat();
     50             float gEven = buffer.getFloat();
     51             float gOdd = buffer.getFloat();
     52             float blue = buffer.getFloat();
     53 
     54             return new RggbChannelVector(red, gEven, gOdd, blue);
     55         }
     56 
     57         @Override
     58         public int getNativeSize() {
     59             return SIZE;
     60         }
     61     }
     62 
     63     @Override
     64     public Marshaler<RggbChannelVector> createMarshaler(
     65             TypeReference<RggbChannelVector> managedType, int nativeType) {
     66         return new MarshalerRggbChannelVector(managedType, nativeType);
     67     }
     68 
     69     @Override
     70     public boolean isTypeMappingSupported(
     71             TypeReference<RggbChannelVector> managedType, int nativeType) {
     72         return nativeType == TYPE_FLOAT && (RggbChannelVector.class.equals(managedType.getType()));
     73     }
     74 
     75 }
     76