| /* |
| * 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.Marshaler; |
| import android.hardware.camera2.marshal.MarshalQueryable; |
| import android.hardware.camera2.params.StreamConfigurationDuration; |
| import android.hardware.camera2.utils.TypeReference; |
| |
| import static android.hardware.camera2.impl.CameraMetadataNative.*; |
| import static android.hardware.camera2.marshal.MarshalHelpers.*; |
| |
| import java.nio.ByteBuffer; |
| |
| /** |
| * Marshaler for custom class {@link StreamConfigurationDuration} for min-frame and stall durations. |
| * |
| * <p> |
| * Data is stored as {@code (format, width, height, durationNs)} tuples (int64). |
| * </p> |
| */ |
| public class MarshalQueryableStreamConfigurationDuration |
| implements MarshalQueryable<StreamConfigurationDuration> { |
| |
| private static final int SIZE = SIZEOF_INT64 * 4; |
| /** |
| * Values and-ed with this will do an unsigned int to signed long conversion; |
| * in other words the sign bit from the int will not be extended. |
| * */ |
| private static final long MASK_UNSIGNED_INT = 0x00000000ffffffffL; |
| |
| private class MarshalerStreamConfigurationDuration |
| extends Marshaler<StreamConfigurationDuration> { |
| |
| protected MarshalerStreamConfigurationDuration( |
| TypeReference<StreamConfigurationDuration> typeReference, int nativeType) { |
| super(MarshalQueryableStreamConfigurationDuration.this, typeReference, nativeType); |
| } |
| |
| @Override |
| public void marshal(StreamConfigurationDuration value, ByteBuffer buffer) { |
| buffer.putLong(value.getFormat() & MASK_UNSIGNED_INT); // unsigned int -> long |
| buffer.putLong(value.getWidth()); |
| buffer.putLong(value.getHeight()); |
| buffer.putLong(value.getDuration()); |
| } |
| |
| @Override |
| public StreamConfigurationDuration unmarshal(ByteBuffer buffer) { |
| int format = (int)buffer.getLong(); |
| int width = (int)buffer.getLong(); |
| int height = (int)buffer.getLong(); |
| long durationNs = buffer.getLong(); |
| |
| return new StreamConfigurationDuration(format, width, height, durationNs); |
| } |
| |
| @Override |
| public int getNativeSize() { |
| return SIZE; |
| } |
| } |
| |
| @Override |
| public Marshaler<StreamConfigurationDuration> createMarshaler( |
| TypeReference<StreamConfigurationDuration> managedType, int nativeType) { |
| return new MarshalerStreamConfigurationDuration(managedType, nativeType); |
| } |
| |
| @Override |
| public boolean isTypeMappingSupported(TypeReference<StreamConfigurationDuration> managedType, |
| int nativeType) { |
| return nativeType == TYPE_INT64 && |
| (StreamConfigurationDuration.class.equals(managedType.getType())); |
| } |
| |
| } |