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.MeteringRectangle; 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 MeteringRectangle} to/from {@link #TYPE_INT32} 30 */ 31 public class MarshalQueryableMeteringRectangle implements MarshalQueryable<MeteringRectangle> { 32 private static final int SIZE = SIZEOF_INT32 * 5; 33 34 /** (xmin, ymin, xmax, ymax, weight) */ 35 private class MarshalerMeteringRectangle extends Marshaler<MeteringRectangle> { MarshalerMeteringRectangle(TypeReference<MeteringRectangle> typeReference, int nativeType)36 protected MarshalerMeteringRectangle(TypeReference<MeteringRectangle> typeReference, 37 int nativeType) { 38 super(MarshalQueryableMeteringRectangle.this, typeReference, nativeType); 39 } 40 41 @Override marshal(MeteringRectangle value, ByteBuffer buffer)42 public void marshal(MeteringRectangle value, ByteBuffer buffer) { 43 int xMin = value.getX(); 44 int yMin = value.getY(); 45 int xMax = xMin + value.getWidth(); 46 int yMax = yMin + value.getHeight(); 47 int weight = value.getMeteringWeight(); 48 49 buffer.putInt(xMin); 50 buffer.putInt(yMin); 51 buffer.putInt(xMax); 52 buffer.putInt(yMax); 53 buffer.putInt(weight); 54 } 55 56 @Override unmarshal(ByteBuffer buffer)57 public MeteringRectangle unmarshal(ByteBuffer buffer) { 58 int xMin = buffer.getInt(); 59 int yMin = buffer.getInt(); 60 int xMax = buffer.getInt(); 61 int yMax = buffer.getInt(); 62 int weight = buffer.getInt(); 63 64 int width = xMax - xMin; 65 int height = yMax - yMin; 66 67 return new MeteringRectangle(xMin, yMin, width, height, weight); 68 } 69 70 @Override getNativeSize()71 public int getNativeSize() { 72 return SIZE; 73 } 74 } 75 76 @Override createMarshaler( TypeReference<MeteringRectangle> managedType, int nativeType)77 public Marshaler<MeteringRectangle> createMarshaler( 78 TypeReference<MeteringRectangle> managedType, int nativeType) { 79 return new MarshalerMeteringRectangle(managedType, nativeType); 80 } 81 82 @Override isTypeMappingSupported( TypeReference<MeteringRectangle> managedType, int nativeType)83 public boolean isTypeMappingSupported( 84 TypeReference<MeteringRectangle> managedType, int nativeType) { 85 return nativeType == TYPE_INT32 && MeteringRectangle.class.equals(managedType.getType()); 86 } 87 88 } 89