MarshalQueryableHighSpeedVideoConfiguration.java revision 12da140082323d9aa048b3e928505a0a2adfdda7 
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 */
16package android.hardware.camera2.marshal.impl;
17
18import android.hardware.camera2.marshal.Marshaler;
19import android.hardware.camera2.marshal.MarshalQueryable;
20import android.hardware.camera2.params.HighSpeedVideoConfiguration;
21import android.hardware.camera2.utils.TypeReference;
22
23import static android.hardware.camera2.impl.CameraMetadataNative.*;
24import static android.hardware.camera2.marshal.MarshalHelpers.*;
25
26import java.nio.ByteBuffer;
27
28/**
29 * Marshaler for {@code android.control.availableHighSpeedVideoConfigurations} custom class
30 * {@link HighSpeedVideoConfiguration}
31 *
32 * <p>Data is stored as {@code (width, height, fpsMin, fpsMax)} tuples (int32).</p>
33 */
34public class MarshalQueryableHighSpeedVideoConfiguration
35        implements MarshalQueryable<HighSpeedVideoConfiguration> {
36    private static final int SIZE = SIZEOF_INT32 * 4;
37
38    private class MarshalerHighSpeedVideoConfiguration
39            extends Marshaler<HighSpeedVideoConfiguration> {
40        protected MarshalerHighSpeedVideoConfiguration(
41                TypeReference<HighSpeedVideoConfiguration> typeReference,
42                int nativeType) {
43            super(MarshalQueryableHighSpeedVideoConfiguration.this, typeReference, nativeType);
44        }
45
46        @Override
47        public void marshal(HighSpeedVideoConfiguration value, ByteBuffer buffer) {
48            buffer.putInt(value.getWidth());
49            buffer.putInt(value.getHeight());
50            buffer.putInt(value.getFpsMin());
51            buffer.putInt(value.getFpsMax());
52        }
53
54        @Override
55        public HighSpeedVideoConfiguration unmarshal(ByteBuffer buffer) {
56            int width = buffer.getInt();
57            int height = buffer.getInt();
58            int fpsMin = buffer.getInt();
59            int fpsMax = buffer.getInt();
60
61            return new HighSpeedVideoConfiguration(width, height, fpsMin, fpsMax);
62        }
63
64        @Override
65        public int getNativeSize() {
66            return SIZE;
67        }
68
69    }
70
71    @Override
72    public Marshaler<HighSpeedVideoConfiguration> createMarshaler(
73            TypeReference<HighSpeedVideoConfiguration> managedType, int nativeType) {
74        return new MarshalerHighSpeedVideoConfiguration(managedType, nativeType);
75    }
76
77    @Override
78    public boolean isTypeMappingSupported(TypeReference<HighSpeedVideoConfiguration> managedType,
79            int nativeType) {
80        return nativeType == TYPE_INT32 &&
81                managedType.getType().equals(HighSpeedVideoConfiguration.class);
82    }
83}
84