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The missing bridge between Java and native C++
/*
* Copyright (C) 2014-2019 Samuel Audet
*
* Licensed either under the Apache License, Version 2.0, or (at your option)
* under the terms of the GNU General Public License as published by
* the Free Software Foundation (subject to the "Classpath" exception),
* either version 2, or any later version (collectively, 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
* http://www.gnu.org/licenses/
* http://www.gnu.org/software/classpath/license.html
*
* or as provided in the LICENSE.txt file that accompanied this code.
* 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 org.bytedeco.javacpp.indexer;
import java.nio.Buffer;
import java.nio.ByteBuffer;
/**
* An indexer for a {@link ByteBuffer}.
*
* @author Samuel Audet
*/
public class ByteBufferIndexer extends ByteIndexer {
/** The backing buffer. */
protected ByteBuffer buffer;
/** Calls {@code ByteBufferIndexer(buffer, Index.create(buffer.limit()))}. */
public ByteBufferIndexer(ByteBuffer buffer) {
this(buffer, Index.create(buffer.limit()));
}
/** Calls {@code ByteBufferIndexer(buffer, Index.create(sizes))}. */
public ByteBufferIndexer(ByteBuffer buffer, long... sizes) {
this(buffer, Index.create(sizes));
}
/** Calls {@code ByteBufferIndexer(buffer, Index.create(sizes, strides))}. */
public ByteBufferIndexer(ByteBuffer buffer, long[] sizes, long[] strides) {
this(buffer, Index.create(sizes, strides));
}
/** Constructor to set the {@link #buffer} and {@link #index}. */
public ByteBufferIndexer(ByteBuffer buffer, Index index) {
super(index);
this.buffer = buffer;
}
@Override public Buffer buffer() {
return buffer;
}
@Override public ByteIndexer reindex(Index index) {
return new ByteBufferIndexer(buffer, index);
}
@Override public byte get(long i) {
return buffer.get((int)index(i));
}
@Override public ByteIndexer get(long i, byte[] b, int offset, int length) {
for (int n = 0; n < length; n++) {
b[offset + n] = buffer.get((int)index(i) + n);
}
return this;
}
@Override public byte get(long i, long j) {
return buffer.get((int)index(i, j));
}
@Override public ByteIndexer get(long i, long j, byte[] b, int offset, int length) {
for (int n = 0; n < length; n++) {
b[offset + n] = buffer.get((int)index(i, j) + n);
}
return this;
}
@Override public byte get(long i, long j, long k) {
return buffer.get((int)index(i, j, k));
}
@Override public byte get(long... indices) {
return buffer.get((int)index(indices));
}
@Override public ByteIndexer get(long[] indices, byte[] b, int offset, int length) {
for (int n = 0; n < length; n++) {
b[offset + n] = buffer.get((int)index(indices) + n);
}
return this;
}
@Override public ByteIndexer put(long i, byte b) {
buffer.put((int)index(i), b);
return this;
}
@Override public ByteIndexer put(long i, byte[] b, int offset, int length) {
for (int n = 0; n < length; n++) {
buffer.put((int)index(i) + n, b[offset + n]);
}
return this;
}
@Override public ByteIndexer put(long i, long j, byte b) {
buffer.put((int)index(i, j), b);
return this;
}
@Override public ByteIndexer put(long i, long j, byte[] b, int offset, int length) {
for (int n = 0; n < length; n++) {
buffer.put((int)index(i, j) + n, b[offset + n]);
}
return this;
}
@Override public ByteIndexer put(long i, long j, long k, byte b) {
buffer.put((int)index(i, j, k), b);
return this;
}
@Override public ByteIndexer put(long[] indices, byte b) {
buffer.put((int)index(indices), b);
return this;
}
@Override public ByteIndexer put(long[] indices, byte[] b, int offset, int length) {
for (int n = 0; n < length; n++) {
buffer.put((int)index(indices) + n, b[offset + n]);
}
return this;
}
@Override public byte getByte(long i) {
return buffer.get((int)i);
}
@Override public ByteIndexer putByte(long i, byte b) {
buffer.put((int)i, b);
return this;
}
@Override public short getShort(long i) {
return buffer.getShort((int)i);
}
@Override public ByteIndexer putShort(long i, short s) {
buffer.putShort((int)i, s);
return this;
}
@Override public int getInt(long i) {
return buffer.getInt((int)i);
}
@Override public ByteIndexer putInt(long i, int j) {
buffer.putInt((int)i, j);
return this;
}
@Override public long getLong(long i) {
return buffer.getLong((int)i);
}
@Override public ByteIndexer putLong(long i, long j) {
buffer.putLong((int)i, j);
return this;
}
@Override public float getFloat(long i) {
return buffer.getFloat((int)i);
}
@Override public ByteIndexer putFloat(long i, float f) {
buffer.putFloat((int)i, f);
return this;
}
@Override public double getDouble(long i) {
return buffer.getDouble((int)i);
}
@Override public ByteIndexer putDouble(long i, double d) {
buffer.putDouble((int)i, d);
return this;
}
@Override public char getChar(long i) {
return buffer.getChar((int)i);
}
@Override public ByteIndexer putChar(long i, char c) {
buffer.putChar((int)i, c);
return this;
}
@Override public void release() { buffer = null; }
}