| /* |
| * 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 com.android.layoutlib.bridge.libcore.io; |
| |
| import java.nio.ByteBuffer; |
| |
| import libcore.io.BufferIterator; |
| |
| /** |
| * Provides an implementation of {@link BufferIterator} over a {@link ByteBuffer}. |
| */ |
| public class BridgeBufferIterator extends BufferIterator { |
| |
| private final long mSize; |
| private final ByteBuffer mByteBuffer; |
| |
| public BridgeBufferIterator(long size, ByteBuffer buffer) { |
| mSize = size; |
| mByteBuffer = buffer; |
| } |
| |
| @Override |
| public void seek(int offset) { |
| assert offset <= mSize; |
| mByteBuffer.position(offset); |
| } |
| |
| @Override |
| public int pos() { |
| return mByteBuffer.position(); |
| } |
| |
| @Override |
| public void skip(int byteCount) { |
| int newPosition = mByteBuffer.position() + byteCount; |
| assert newPosition <= mSize; |
| mByteBuffer.position(newPosition); |
| } |
| |
| @Override |
| public void readByteArray(byte[] dst, int dstOffset, int byteCount) { |
| assert dst.length >= dstOffset + byteCount; |
| mByteBuffer.get(dst, dstOffset, byteCount); |
| } |
| |
| @Override |
| public byte readByte() { |
| return mByteBuffer.get(); |
| } |
| |
| @Override |
| public int readInt() { |
| return mByteBuffer.getInt(); |
| } |
| |
| @Override |
| public void readIntArray(int[] dst, int dstOffset, int intCount) { |
| while (--intCount >= 0) { |
| dst[dstOffset++] = mByteBuffer.getInt(); |
| } |
| } |
| |
| @Override |
| public short readShort() { |
| return mByteBuffer.getShort(); |
| } |
| } |