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.graphics.Rect; 19 import android.hardware.camera2.marshal.Marshaler; 20 import android.hardware.camera2.marshal.MarshalQueryable; 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 Rect} to/from {@link #TYPE_INT32} 30 */ 31 public class MarshalQueryableRect implements MarshalQueryable<Rect> { 32 private static final int SIZE = SIZEOF_INT32 * 4; 33 34 private class MarshalerRect extends Marshaler<Rect> { 35 protected MarshalerRect(TypeReference<Rect> typeReference, 36 int nativeType) { 37 super(MarshalQueryableRect.this, typeReference, nativeType); 38 } 39 40 @Override 41 public void marshal(Rect value, ByteBuffer buffer) { 42 buffer.putInt(value.left); 43 buffer.putInt(value.top); 44 buffer.putInt(value.width()); 45 buffer.putInt(value.height()); 46 } 47 48 @Override 49 public Rect unmarshal(ByteBuffer buffer) { 50 int left = buffer.getInt(); 51 int top = buffer.getInt(); 52 int width = buffer.getInt(); 53 int height = buffer.getInt(); 54 55 int right = left + width; 56 int bottom = top + height; 57 58 return new Rect(left, top, right, bottom); 59 } 60 61 @Override 62 public int getNativeSize() { 63 return SIZE; 64 } 65 } 66 67 @Override 68 public Marshaler<Rect> createMarshaler(TypeReference<Rect> managedType, int nativeType) { 69 return new MarshalerRect(managedType, nativeType); 70 } 71 72 @Override 73 public boolean isTypeMappingSupported(TypeReference<Rect> managedType, int nativeType) { 74 return nativeType == TYPE_INT32 && (Rect.class.equals(managedType.getType())); 75 } 76 77 } 78
