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NativeIStream.java
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47 lines (39 loc) · 1.18 KB
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/**
* PANDA 3D SOFTWARE
* Copyright (c) Carnegie Mellon University. All rights reserved.
*
* All use of this software is subject to the terms of the revised BSD
* license. You should have received a copy of this license along
* with this source code in a file named "LICENSE."
*
* @file NativeIStream.java
* @author rdb
* @date 2013-01-22
*/
package org.panda3d.android;
import java.io.InputStream;
/**
* An implementation of InputStream that gets its data from a C++ istream
* pointer, passed as long.
*/
public class NativeIStream extends InputStream {
private long streamPtr = 0;
public NativeIStream(long ptr) {
streamPtr = ptr;
}
@Override
public int read() {
return nativeGet(streamPtr);
}
@Override
public int read(byte[] buffer, int offset, int length) {
return nativeRead(streamPtr, buffer, offset, length);
}
@Override
public long skip(long n) {
return nativeIgnore(streamPtr, n);
}
private static native int nativeGet(long ptr);
private static native int nativeRead(long ptr, byte[] buffer, int offset, int length);
private static native long nativeIgnore(long ptr, long offset);
}