/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You 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.
*/
/**
* @author Igor V. Stolyarov
* @version $Revision$
*/
package java.awt.image;
/**
* The Class DataBufferDouble is the subclass of DataBuffer for the case where
* the underlying data is of type double.
*
* @since Android 1.0
*/
public final class DataBufferDouble extends DataBuffer {
/**
* The data.
*/
double data[][];
/**
* Instantiates a new data buffer of type double.
*
* @param dataArrays
* the data arrays to copy the data from.
* @param size
* the length (number of elements) to use from the data arrays.
* @param offsets
* the starting indices for reading the data from the internal
* data arrays.
*/
public DataBufferDouble(double dataArrays[][], int size, int offsets[]) {
super(TYPE_DOUBLE, size, dataArrays.length, offsets);
data = dataArrays.clone();
}
/**
* Instantiates a new data buffer of type double.
*
* @param dataArrays
* the data arrays to copy the data from.
* @param size
* the length (number of elements) to use from the data arrays.
*/
public DataBufferDouble(double dataArrays[][], int size) {
super(TYPE_DOUBLE, size, dataArrays.length);
data = dataArrays.clone();
}
/**
* Instantiates a new data buffer of type double with a single underlying
* array of data.
*
* @param dataArray
* the data array to copy the data from.
* @param size
* the length (number of elements) to use.
* @param offset
* the starting index to use when reading the data.
*/
public DataBufferDouble(double dataArray[], int size, int offset) {
super(TYPE_DOUBLE, size, 1, offset);
data = new double[1][];
data[0] = dataArray;
}
/**
* Instantiates a new data buffer of type double with a single underlying
* array of data starting at index 0.
*
* @param dataArray
* the data array to copy the data from.
* @param size
* the length (number of elements) to use.
*/
public DataBufferDouble(double dataArray[], int size) {
super(TYPE_DOUBLE, size);
data = new double[1][];
data[0] = dataArray;
}
/**
* Instantiates a new empty data buffer of type double with offsets equal to
* zero.
*
* @param size
* the length (number of elements) to use from the data arrays.
* @param numBanks
* the number of data arrays to create.
*/
public DataBufferDouble(int size, int numBanks) {
super(TYPE_DOUBLE, size, numBanks);
data = new double[numBanks][];
int i = 0;
while (i < numBanks) {
data[i++] = new double[size];
}
}
/**
* Instantiates a new empty data buffer of type double with a single
* underlying array of data starting at index 0.
*
* @param size
* the length (number of elements) to use.
*/
public DataBufferDouble(int size) {
super(TYPE_DOUBLE, size);
data = new double[1][];
data[0] = new double[size];
}
@Override
public void setElem(int bank, int i, int val) {
data[bank][offsets[bank] + i] = val;
notifyChanged();
}
@Override
public void setElemFloat(int bank, int i, float val) {
data[bank][offsets[bank] + i] = val;
notifyChanged();
}
@Override
public void setElemDouble(int bank, int i, double val) {
data[bank][offsets[bank] + i] = val;
notifyChanged();
}
@Override
public void setElem(int i, int val) {
data[0][offset + i] = val;
notifyChanged();
}
@Override
public int getElem(int bank, int i) {
return (int)(data[bank][offsets[bank] + i]);
}
@Override
public float getElemFloat(int bank, int i) {
return (float)(data[bank][offsets[bank] + i]);
}
@Override
public double getElemDouble(int bank, int i) {
return data[bank][offsets[bank] + i];
}
@Override
public void setElemFloat(int i, float val) {
data[0][offset + i] = val;
notifyChanged();
}
@Override
public void setElemDouble(int i, double val) {
data[0][offset + i] = val;
notifyChanged();
}
/**
* Gets the data of the specified internal data array.
*
* @param bank
* the index of the desired data array.
* @return the data.
*/
public double[] getData(int bank) {
notifyTaken();
return data[bank];
}
@Override
public int getElem(int i) {
return (int)(data[0][offset + i]);
}
@Override
public float getElemFloat(int i) {
return (float)(data[0][offset + i]);
}
@Override
public double getElemDouble(int i) {
return data[0][offset + i];
}
/**
* Gets the bank data.
*
* @return the bank data.
*/
public double[][] getBankData() {
notifyTaken();
return data.clone();
}
/**
* Gets the data of the first data array.
*
* @return the data.
*/
public double[] getData() {
notifyTaken();
return data[0];
}
}