content: /*
   * Copyright (C) 2014 The Android Open Source Project
   *
   * Licensed under the Apache License, Version 2.0 (the "License");
   * you may not use this file except in compliance with the License.
   * You may obtain a copy of the License at
   *
   *      http://www.apache.org/licenses/LICENSE-2.0
   *
   * Unless required by applicable law or agreed to in writing, software
   * distributed under the License is distributed on an "AS IS" BASIS,
   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   * See the License for the specific language governing permissions and
   * limitations under the License.
   */
  package android.hardware.camera2.marshal.impl;
  
  import android.hardware.camera2.marshal.MarshalQueryable;
  import android.hardware.camera2.marshal.Marshaler;
  import android.hardware.camera2.params.BlackLevelPattern;
  import android.hardware.camera2.utils.TypeReference;
  
  import java.nio.ByteBuffer;
  
  import static android.hardware.camera2.impl.CameraMetadataNative.TYPE_INT32;
  import static android.hardware.camera2.marshal.MarshalHelpers.SIZEOF_INT32;
  
  /**
   * Marshal {@link BlackLevelPattern} to/from {@link #TYPE_INT32} {@code x 4}
   */
  public class MarshalQueryableBlackLevelPattern implements MarshalQueryable<BlackLevelPattern> {
      private static final int SIZE = SIZEOF_INT32 * BlackLevelPattern.COUNT;
  
      private class MarshalerBlackLevelPattern extends Marshaler<BlackLevelPattern> {
          protected MarshalerBlackLevelPattern(TypeReference<BlackLevelPattern> typeReference,
                                                 int nativeType) {
              super(MarshalQueryableBlackLevelPattern.this, typeReference, nativeType);
          }
  
          @Override
          public void marshal(BlackLevelPattern value, ByteBuffer buffer) {
              for (int i = 0; i < BlackLevelPattern.COUNT / 2; ++i) {
                  for (int j = 0; j < BlackLevelPattern.COUNT / 2; ++j) {
                      buffer.putInt(value.getOffsetForIndex(j, i));
                  }
              }
          }
  
          @Override
          public BlackLevelPattern unmarshal(ByteBuffer buffer) {
              int[] channelOffsets = new int[BlackLevelPattern.COUNT];
              for (int i = 0; i < BlackLevelPattern.COUNT; ++i) {
                  channelOffsets[i] = buffer.getInt();
              }
              return new BlackLevelPattern(channelOffsets);
          }
  
          @Override
          public int getNativeSize() {
              return SIZE;
          }
      }
  
      @Override
      public Marshaler<BlackLevelPattern> createMarshaler(
              TypeReference<BlackLevelPattern> managedType, int nativeType) {
          return new MarshalerBlackLevelPattern(managedType, nativeType);
      }
  
      @Override
      public boolean isTypeMappingSupported(
              TypeReference<BlackLevelPattern> managedType, int nativeType) {
          return nativeType == TYPE_INT32 &&
                  (BlackLevelPattern.class.equals(managedType.getType()));
      }
  }
  