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.utils.TypeReference;
21 import android.util.SizeF;
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 SizeF} to/from {@code TYPE_FLOAT}
30  */
31 public class MarshalQueryableSizeF implements MarshalQueryable<SizeF> {
32 
33     private static final int SIZE = SIZEOF_FLOAT * 2;
34 
35     private class MarshalerSizeF extends Marshaler<SizeF> {
36 
MarshalerSizeF(TypeReference<SizeF> typeReference, int nativeType)37         protected MarshalerSizeF(TypeReference<SizeF> typeReference, int nativeType) {
38             super(MarshalQueryableSizeF.this, typeReference, nativeType);
39         }
40 
41         @Override
marshal(SizeF value, ByteBuffer buffer)42         public void marshal(SizeF value, ByteBuffer buffer) {
43             buffer.putFloat(value.getWidth());
44             buffer.putFloat(value.getHeight());
45         }
46 
47         @Override
unmarshal(ByteBuffer buffer)48         public SizeF unmarshal(ByteBuffer buffer) {
49             float width = buffer.getFloat();
50             float height = buffer.getFloat();
51 
52             return new SizeF(width, height);
53         }
54 
55         @Override
getNativeSize()56         public int getNativeSize() {
57             return SIZE;
58         }
59     }
60 
61     @Override
createMarshaler( TypeReference<SizeF> managedType, int nativeType)62     public Marshaler<SizeF> createMarshaler(
63             TypeReference<SizeF> managedType, int nativeType) {
64         return new MarshalerSizeF(managedType, nativeType);
65     }
66 
67     @Override
isTypeMappingSupported(TypeReference<SizeF> managedType, int nativeType)68     public boolean isTypeMappingSupported(TypeReference<SizeF> managedType, int nativeType) {
69         return nativeType == TYPE_FLOAT && (SizeF.class.equals(managedType.getType()));
70     }
71 }
72 
73