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54 lines
2.0 KiB
Java
54 lines
2.0 KiB
Java
/*--------------------------------------------------------------------------
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* Copyright 2011 Taro L. Saito
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*--------------------------------------------------------------------------*/
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//--------------------------------------
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// snappy-java Project
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//
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// BitShuffleNative.java
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// Since: 2016/03/31
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//
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// $URL$
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// $Author$
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//--------------------------------------
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package org.xerial.snappy;
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import java.io.IOException;
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/**
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* JNI interfaces of the {@link BitShuffle} implementation. The native method in this class is
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* defined in BitShuffleNative.h (genereted by javah) and BitShuffleNative.cpp
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* <p/>
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* <p>
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* <b> DO NOT USE THIS CLASS since the direct use of this class might break the
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* native library code loading in {@link SnappyLoader}. </b>
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* </p>
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*
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* @author leo
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*/
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public class BitShuffleNative
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{
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// ------------------------------------------------------------------------
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// Bit-shuffling routines to improve compression of typed binary data.
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// A quick benchmark result can be found in a gist below;
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// https://gist.github.com/maropu/01103215df34b317a7a7
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// ------------------------------------------------------------------------
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public native int bitShuffle(Object input, int inputOffset, int typeSize, int byteLength, Object output, int outputOffset)
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throws IOException;
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public native int bitUnShuffle(Object input, int inputOffset, int typeSize, int byteLength, Object output, int outputOffset)
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throws IOException;
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}
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