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.ColorSpaceTransform; 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 ColorSpaceTransform} to/from {@link #TYPE_RATIONAL} 30 */ 31 public class MarshalQueryableColorSpaceTransform implements 32 MarshalQueryable<ColorSpaceTransform> { 33 34 private static final int ELEMENTS_INT32 = 3 * 3 * (SIZEOF_RATIONAL / SIZEOF_INT32); 35 private static final int SIZE = SIZEOF_INT32 * ELEMENTS_INT32; 36 37 /** rational x 3 x 3 */ 38 private class MarshalerColorSpaceTransform extends Marshaler<ColorSpaceTransform> { MarshalerColorSpaceTransform(TypeReference<ColorSpaceTransform> typeReference, int nativeType)39 protected MarshalerColorSpaceTransform(TypeReference<ColorSpaceTransform> typeReference, 40 int nativeType) { 41 super(MarshalQueryableColorSpaceTransform.this, typeReference, nativeType); 42 } 43 44 @Override marshal(ColorSpaceTransform value, ByteBuffer buffer)45 public void marshal(ColorSpaceTransform value, ByteBuffer buffer) { 46 int[] transformAsArray = new int[ELEMENTS_INT32]; 47 value.copyElements(transformAsArray, /*offset*/0); 48 49 for (int i = 0; i < ELEMENTS_INT32; ++i) { 50 buffer.putInt(transformAsArray[i]); 51 } 52 } 53 54 @Override unmarshal(ByteBuffer buffer)55 public ColorSpaceTransform unmarshal(ByteBuffer buffer) { 56 int[] transformAsArray = new int[ELEMENTS_INT32]; 57 58 for (int i = 0; i < ELEMENTS_INT32; ++i) { 59 transformAsArray[i] = buffer.getInt(); 60 } 61 62 return new ColorSpaceTransform(transformAsArray); 63 } 64 65 @Override getNativeSize()66 public int getNativeSize() { 67 return SIZE; 68 } 69 } 70 71 @Override createMarshaler( TypeReference<ColorSpaceTransform> managedType, int nativeType)72 public Marshaler<ColorSpaceTransform> createMarshaler( 73 TypeReference<ColorSpaceTransform> managedType, int nativeType) { 74 return new MarshalerColorSpaceTransform(managedType, nativeType); 75 } 76 77 @Override isTypeMappingSupported( TypeReference<ColorSpaceTransform> managedType, int nativeType)78 public boolean isTypeMappingSupported( 79 TypeReference<ColorSpaceTransform> managedType, int nativeType) { 80 return nativeType == TYPE_RATIONAL && 81 ColorSpaceTransform.class.equals(managedType.getType()); 82 } 83 84 } 85