/*******************************************************************************
* Copyright 2011 See AUTHORS file.
*
* 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.badlogic.gdx.utils;
import java.io.DataInput;
import java.io.DataInputStream;
import java.io.FilterInputStream;
import java.io.IOException;
import java.io.InputStream;
/**
* Taken from http://www.javafaq.nu/java-example-code-1079.html
*
* @author mzechner
*/
public class LittleEndianInputStream extends FilterInputStream implements DataInput {
private DataInputStream din;
public LittleEndianInputStream(InputStream in) {
super(in);
din = new DataInputStream(in);
}
public void readFully(byte[] b) throws IOException {
din.readFully(b);
}
public void readFully(byte[] b, int off, int len) throws IOException {
din.readFully(b, off, len);
}
public int skipBytes(int n) throws IOException {
return din.skipBytes(n);
}
public boolean readBoolean() throws IOException {
return din.readBoolean();
}
public byte readByte() throws IOException {
return din.readByte();
}
public int readUnsignedByte() throws IOException {
return din.readUnsignedByte();
}
public short readShort() throws IOException {
int low = din.read();
int high = din.read();
return (short) ((high << 8) | (low & 0xff));
}
public int readUnsignedShort() throws IOException {
int low = din.read();
int high = din.read();
return ((high & 0xff) << 8) | (low & 0xff);
}
public char readChar() throws IOException {
return din.readChar();
}
public int readInt() throws IOException {
int[] res = new int[4];
for (int i = 3; i >= 0; i--)
res[i] = din.read();
return ((res[0] & 0xff) << 24) | ((res[1] & 0xff) << 16) | ((res[2] & 0xff) << 8) | (res[3] & 0xff);
}
public long readLong() throws IOException {
int[] res = new int[8];
for (int i = 7; i >= 0; i--)
res[i] = din.read();
return (((long) (res[0] & 0xff) << 56) | ((long) (res[1] & 0xff) << 48) | ((long) (res[2] & 0xff) << 40)
| ((long) (res[3] & 0xff) << 32) | ((long) (res[4] & 0xff) << 24) | ((long) (res[5] & 0xff) << 16)
| ((long) (res[6] & 0xff) << 8) | ((long) (res[7] & 0xff)));
}
public float readFloat() throws IOException {
return Float.intBitsToFloat(readInt());
}
public double readDouble() throws IOException {
return Double.longBitsToDouble(readLong());
}
public final String readLine() throws IOException {
return din.readLine();
}
public String readUTF() throws IOException {
return din.readUTF();
}
}