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.StreamConfiguration; 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 * Marshaler for {@code android.scaler.availableStreamConfigurations} custom class 30 * {@link StreamConfiguration} 31 * 32 * <p>Data is stored as {@code (format, width, height, input?)} tuples (int32).</p> 33 */ 34 public class MarshalQueryableStreamConfiguration 35 implements MarshalQueryable<StreamConfiguration> { 36 private static final int SIZE = SIZEOF_INT32 * 4; 37 38 private class MarshalerStreamConfiguration extends Marshaler<StreamConfiguration> { 39 protected MarshalerStreamConfiguration(TypeReference<StreamConfiguration> typeReference, 40 int nativeType) { 41 super(MarshalQueryableStreamConfiguration.this, typeReference, nativeType); 42 } 43 44 @Override 45 public void marshal(StreamConfiguration value, ByteBuffer buffer) { 46 buffer.putInt(value.getFormat()); 47 buffer.putInt(value.getWidth()); 48 buffer.putInt(value.getHeight()); 49 buffer.putInt(value.isInput() ? 1 : 0); 50 } 51 52 @Override 53 public StreamConfiguration unmarshal(ByteBuffer buffer) { 54 int format = buffer.getInt(); 55 int width = buffer.getInt(); 56 int height = buffer.getInt(); 57 boolean input = buffer.getInt() != 0; 58 59 return new StreamConfiguration(format, width, height, input); 60 } 61 62 @Override 63 public int getNativeSize() { 64 return SIZE; 65 } 66 67 } 68 69 @Override 70 public Marshaler<StreamConfiguration> createMarshaler( 71 TypeReference<StreamConfiguration> managedType, int nativeType) { 72 return new MarshalerStreamConfiguration(managedType, nativeType); 73 } 74 75 @Override 76 public boolean isTypeMappingSupported(TypeReference<StreamConfiguration> managedType, 77 int nativeType) { 78 return nativeType == TYPE_INT32 && managedType.getType().equals(StreamConfiguration.class); 79 } 80 } 81
