/*
* 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;
import org.apache.harmony.awt.internal.nls.Messages;
/**
* The SampleModel class is abstract class for retrieving pixel's samples in the
* data of an image. Each pixel contains several samples. A sample is the set of
* values of the bands for single pixel. For example, each pixel in the RGB
* model contains three samples and there are three corresponding bands in the
* image data of such pixels representing red, green and blue components.
* <p>
* The image data is represented as a Raster with a DataBuffer and a
* SampleModel. The SampleModel allows access to the samples in the DataBuffer.
*
* @since Android 1.0
*/
public abstract class SampleModel {
/**
* The width of the image data which this SampleModel describes.
*/
protected int width;
/**
* The height of the image data which this SampleModel describes.
*/
protected int height;
/**
* The number of bands of image data which this SampleModel describes.
*/
protected int numBands;
/**
* The data type of the image data which this SampleModel describes.
*/
protected int dataType;
/**
* Instantiates a new SampleModel with the specified data type, width,
* height and number of bands.
*
* @param dataType
* the data type of the image data.
* @param w
* the width of the image data.
* @param h
* the height of the image data.
* @param numBands
* the number of bands of the image data.
*/
public SampleModel(int dataType, int w, int h, int numBands) {
if (w <= 0 || h <= 0) {
// awt.22E=w or h is less than or equal to zero
throw new IllegalArgumentException(Messages.getString("awt.22E")); //$NON-NLS-1$
}
double squre = ((double)w) * ((double)h);
if (squre >= Integer.MAX_VALUE) {
// awt.22F=The product of w and h is greater than Integer.MAX_VALUE
throw new IllegalArgumentException(Messages.getString("awt.22F")); //$NON-NLS-1$
}
if (dataType < DataBuffer.TYPE_BYTE || dataType > DataBuffer.TYPE_DOUBLE
&& dataType != DataBuffer.TYPE_UNDEFINED) {
// awt.230=dataType is not one of the supported data types
throw new IllegalArgumentException(Messages.getString("awt.230")); //$NON-NLS-1$
}
if (numBands < 1) {
// awt.231=Number of bands must be more then 0
throw new IllegalArgumentException(Messages.getString("awt.231")); //$NON-NLS-1$
}
this.dataType = dataType;
this.width = w;
this.height = h;
this.numBands = numBands;
}
/**
* Gets the data array for the specified pixel of the specified DataBuffer
* with one of the following types: DataBuffer.TYPE_BYTE,
* DataBuffer.TYPE_USHORT, DataBuffer.TYPE_INT, DataBuffer.TYPE_SHORT,
* DataBuffer.TYPE_FLOAT, or DataBuffer.TYPE_DOUBLE.
*
* @param x
* the X coordinate of pixel.
* @param y
* the Y coordinate of pixel.
* @param obj
* the Object is a data where the result will be stored.
* @param data
* the image data.
* @return the data array for the specified pixel of the specified
* DataBuffer.
*/
public abstract Object getDataElements(int x, int y, Object obj, DataBuffer data);
/**
* Gets the array of pixel data for the specified rectangular area of pixels
* of the specified DataBuffer with one of the following types:
* DataBuffer.TYPE_BYTE, DataBuffer.TYPE_USHORT, DataBuffer.TYPE_INT,
* DataBuffer.TYPE_SHORT, DataBuffer.TYPE_FLOAT, or DataBuffer.TYPE_DOUBLE.
*
* @param x
* the X coordinate of the rectangular pixel area.
* @param y
* the Y coordinate of the rectangular pixel area.
* @param w
* the width of the rectangular pixel area.
* @param h
* the height of the rectangular pixel area.
* @param obj
* the Object is an array with the primitive type, where the
* result array will be stored.
* @param data
* the image data.
* @return the array of pixel data for the specified rectangular area of
* pixels of the specified DataBuffer object.
*/
public Object getDataElements(int x, int y, int w, int h, Object obj, DataBuffer data) {
int numDataElements = getNumDataElements();
int idx = 0;
switch (getTransferType()) {
case DataBuffer.TYPE_BYTE:
byte bdata[];
byte bbuf[] = null;
if (obj == null) {
bdata = new byte[numDataElements * w * h];
} else {
bdata = (byte[])obj;
}
for (int i = y; i < y + h; i++) {
for (int j = x; j < x + w; j++) {
bbuf = (byte[])getDataElements(j, i, bbuf, data);
for (int n = 0; n < numDataElements; n++) {
bdata[idx++] = bbuf[n];
}
}
}
obj = bdata;
break;
case DataBuffer.TYPE_SHORT:
case DataBuffer.TYPE_USHORT:
short sdata[];
short sbuf[] = null;
if (obj == null) {
sdata = new short[numDataElements * w * h];
} else {
sdata = (short[])obj;
}
for (int i = y; i < y + h; i++) {
for (int j = x; j < x + w; j++) {
sbuf = (short[])getDataElements(j, i, sbuf, data);
for (int n = 0; n < numDataElements; n++) {
sdata[idx++] = sbuf[n];
}
}
}
obj = sdata;
break;
case DataBuffer.TYPE_INT:
int idata[];
int ibuf[] = null;
if (obj == null) {
idata = new int[numDataElements * w * h];
} else {
idata = (int[])obj;
}
for (int i = y; i < y + h; i++) {
for (int j = x; j < x + w; j++) {
ibuf = (int[])getDataElements(j, i, ibuf, data);
for (int n = 0; n < numDataElements; n++) {
idata[idx++] = ibuf[n];
}
}
}
obj = idata;
break;
case DataBuffer.TYPE_FLOAT:
float fdata[];
float fbuf[] = null;
if (obj == null) {
fdata = new float[numDataElements * w * h];
} else {
fdata = (float[])obj;
}
for (int i = y; i < y + h; i++) {
for (int j = x; j < x + w; j++) {
fbuf = (float[])getDataElements(j, i, fbuf, data);
for (int n = 0; n < numDataElements; n++) {
fdata[idx++] = fbuf[n];
}
}
}
obj = fdata;
break;
case DataBuffer.TYPE_DOUBLE:
double ddata[];
double dbuf[] = null;
if (obj == null) {
ddata = new double[numDataElements * w * h];
} else {
ddata = (double[])obj;
}
for (int i = y; i < y + h; i++) {
for (int j = x; j < x + w; j++) {
dbuf = (double[])getDataElements(j, i, dbuf, data);
for (int n = 0; n < numDataElements; n++) {
ddata[idx++] = dbuf[n];
}
}
}
obj = ddata;
break;
}
return obj;
}
/**
* Sets the data for a single pixel in the specified DataBuffer from a
* primitive array with one of the following types: DataBuffer.TYPE_BYTE,
* DataBuffer.TYPE_USHORT, DataBuffer.TYPE_INT, DataBuffer.TYPE_SHORT,
* DataBuffer.TYPE_FLOAT, or DataBuffer.TYPE_DOUBLE.
*
* @param x
* the X coordinate of pixel.
* @param y
* the Y coordinate of pixel.
* @param obj
* the Object - the array of primitive pixel data to be set.
* @param data
* the image data.
*/
public abstract void setDataElements(int x, int y, Object obj, DataBuffer data);
/**
* Sets the data elements for a rectangular area of pixels in the specified
* DataBuffer from a primitive array with one of the following types:
* DataBuffer.TYPE_BYTE, DataBuffer.TYPE_USHORT, DataBuffer.TYPE_INT,
* DataBuffer.TYPE_SHORT, DataBuffer.TYPE_FLOAT, or DataBuffer.TYPE_DOUBLE.
*
* @param x
* the X coordinate of the specified rectangular area.
* @param y
* the Y coordinate of the specified rectangular area.
* @param w
* the width of rectangle.
* @param h
* the height of rectangle.
* @param obj
* the Object - the array of primitive pixel data to be set.
* @param data
* the image data.
*/
public void setDataElements(int x, int y, int w, int h, Object obj, DataBuffer data) {
int numDataElements = getNumDataElements();
int idx = 0;
switch (getTransferType()) {
case DataBuffer.TYPE_BYTE:
byte bbuf[] = new byte[numDataElements];
for (int i = y; i < y + h; i++) {
for (int j = x; j < x + w; j++) {
for (int n = 0; n < numDataElements; n++) {
bbuf[n] = ((byte[])obj)[idx++];
}
setDataElements(j, i, bbuf, data);
}
}
break;
case DataBuffer.TYPE_SHORT:
case DataBuffer.TYPE_USHORT:
short sbuf[] = new short[numDataElements];
for (int i = y; i < y + h; i++) {
for (int j = x; j < x + w; j++) {
for (int n = 0; n < numDataElements; n++) {
sbuf[n] = ((short[])obj)[idx++];
}
setDataElements(j, i, sbuf, data);
}
}
break;
case DataBuffer.TYPE_INT:
int ibuf[] = new int[numDataElements];
for (int i = y; i < y + h; i++) {
for (int j = x; j < x + w; j++) {
for (int n = 0; n < numDataElements; n++) {
ibuf[n] = ((int[])obj)[idx++];
}
setDataElements(j, i, ibuf, data);
}
}
break;
case DataBuffer.TYPE_FLOAT:
float fbuf[] = new float[numDataElements];
for (int i = y; i < y + h; i++) {
for (int j = x; j < x + w; j++) {
for (int n = 0; n < numDataElements; n++) {
fbuf[n] = ((float[])obj)[idx++];
}
setDataElements(j, i, fbuf, data);
}
}
break;
case DataBuffer.TYPE_DOUBLE:
double dbuf[] = new double[numDataElements];
for (int i = y; i < y + h; i++) {
for (int j = x; j < x + w; j++) {
for (int n = 0; n < numDataElements; n++) {
dbuf[n] = ((double[])obj)[idx++];
}
setDataElements(j, i, dbuf, data);
}
}
break;
}
}
/**
* Creates a new SampleModel with the specified bands of this SampleModel.
*
* @param bands
* the array of bands from this SampleModel.
* @return the SampleModel with the specified bands of this SampleModel.
*/
public abstract SampleModel createSubsetSampleModel(int bands[]);
/**
* Creates the SampleModel which has the same data as in this SampleModel
* with a different width and height.
*
* @param a0
* the width of the image data.
* @param a1
* the height of the image data.
* @return the SampleModel which has the same data as in this SampleModel
* with a different width and height.
*/
public abstract SampleModel createCompatibleSampleModel(int a0, int a1);
/**
* Gets the samples of the specified pixel as an integer array.
*
* @param x
* the X coordinate of pixel.
* @param y
* the Y coordinate of pixel.
* @param iArray
* the integer array where result will be stored.
* @param data
* the image data.
* @return the integer array with the samples of the specified pixel.
*/
public int[] getPixel(int x, int y, int iArray[], DataBuffer data) {
if (x < 0 || y < 0 || x >= this.width || y >= this.height) {
// awt.63=Coordinates are not in bounds
throw new ArrayIndexOutOfBoundsException(Messages.getString("awt.63")); //$NON-NLS-1$
}
int pixel[];
if (iArray == null) {
pixel = new int[numBands];
} else {
pixel = iArray;
}
for (int i = 0; i < numBands; i++) {
pixel[i] = getSample(x, y, i, data);
}
return pixel;
}
/**
* Sets a pixel of the DataBuffer from a integer array of samples.
*
* @param x
* the X coordinate of pixel.
* @param y
* the Y coordinate of pixel.
* @param iArray
* the integer array.
* @param data
* the image data.
*/
public void setPixel(int x, int y, int iArray[], DataBuffer data) {
if (x < 0 || y < 0 || x >= this.width || y >= this.height) {
// awt.63=Coordinates are not in bounds
throw new ArrayIndexOutOfBoundsException(Messages.getString("awt.63")); //$NON-NLS-1$
}
for (int i = 0; i < numBands; i++) {
setSample(x, y, i, iArray[i], data);
}
}
/**
* Gets the samples of the specified pixel as a float array.
*
* @param x
* the X coordinate of pixel.
* @param y
* the Y coordinate of pixel.
* @param fArray
* the float array where result will be stored.
* @param data
* the image data.
* @return the float array with the samples of the specified pixel.
*/
public float[] getPixel(int x, int y, float fArray[], DataBuffer data) {
if (x < 0 || y < 0 || x >= this.width || y >= this.height) {
// awt.63=Coordinates are not in bounds
throw new ArrayIndexOutOfBoundsException(Messages.getString("awt.63")); //$NON-NLS-1$
}
float pixel[];
if (fArray == null) {
pixel = new float[numBands];
} else {
pixel = fArray;
}
for (int i = 0; i < numBands; i++) {
pixel[i] = getSampleFloat(x, y, i, data);
}
return pixel;
}
/**
* Sets a pixel of the DataBuffer from a float array of samples.
*
* @param x
* the X coordinate of pixel.
* @param y
* the Y coordinate of pixel.
* @param fArray
* the float array.
* @param data
* the image data.
*/
public void setPixel(int x, int y, float fArray[], DataBuffer data) {
if (x < 0 || y < 0 || x >= this.width || y >= this.height) {
// awt.63=Coordinates are not in bounds
throw new ArrayIndexOutOfBoundsException(Messages.getString("awt.63")); //$NON-NLS-1$
}
for (int i = 0; i < numBands; i++) {
setSample(x, y, i, fArray[i], data);
}
}
/**
* Gets the samples of the specified pixel as a double array.
*
* @param x
* the X coordinate of pixel.
* @param y
* the Y coordinate of pixel.
* @param dArray
* the double array where result will be stored.
* @param data
* the image data.
* @return the double array with the samples of the specified pixel.
*/
public double[] getPixel(int x, int y, double dArray[], DataBuffer data) {
if (x < 0 || y < 0 || x >= this.width || y >= this.height) {
// awt.63=Coordinates are not in bounds
throw new ArrayIndexOutOfBoundsException(Messages.getString("awt.63")); //$NON-NLS-1$
}
double pixel[];
if (dArray == null) {
pixel = new double[numBands];
} else {
pixel = dArray;
}
for (int i = 0; i < numBands; i++) {
pixel[i] = getSampleDouble(x, y, i, data);
}
return pixel;
}
/**
* Sets a pixel of the DataBuffer from a double array of samples.
*
* @param x
* the X coordinate of pixel.
* @param y
* the Y coordinate of pixel.
* @param dArray
* the double array.
* @param data
* the image data.
*/
public void setPixel(int x, int y, double dArray[], DataBuffer data) {
if (x < 0 || y < 0 || x >= this.width || y >= this.height) {
// awt.63=Coordinates are not in bounds
throw new ArrayIndexOutOfBoundsException(Messages.getString("awt.63")); //$NON-NLS-1$
}
for (int i = 0; i < numBands; i++) {
setSample(x, y, i, dArray[i], data);
}
}
/**
* Gets the sample of a specified band for the specified pixel as an
* integer.
*
* @param x
* the X coordinate of pixel.
* @param y
* the Y coordinate of pixel.
* @param b
* the specified band.
* @param data
* the image data.
* @return the sample of a specified band for the specified pixel.
*/
public abstract int getSample(int x, int y, int b, DataBuffer data);
/**
* Gets the sample of a specified band for the specified pixel as a float.
*
* @param x
* the X coordinate of pixel.
* @param y
* the Y coordinate of pixel.
* @param b
* the specified band.
* @param data
* the image data.
* @return the sample of a specified band for the specified pixel.
*/
public float getSampleFloat(int x, int y, int b, DataBuffer data) {
return getSample(x, y, b, data);
}
/**
* Gets the sample of a specified band for the specified pixel as a double.
*
* @param x
* the X coordinate of pixel.
* @param y
* the Y coordinate of pixel.
* @param b
* the specified band.
* @param data
* the image data.
* @return the sample of a specified band for the specified pixel.
*/
public double getSampleDouble(int x, int y, int b, DataBuffer data) {
return getSample(x, y, b, data);
}
/**
* Gets the samples of the specified rectangular area of pixels as an
* integer array.
*
* @param x
* the X coordinate of the rectangle of pixels.
* @param y
* the Y coordinate of the rectangle of pixels.
* @param w
* the width of the rectangle of pixels.
* @param h
* the height of the rectangle of pixels.
* @param iArray
* the integer array where result will be stored.
* @param data
* the image data.
* @return the integer array with the samples of the specified rectangular
* area of pixels.
*/
public int[] getPixels(int x, int y, int w, int h, int iArray[], DataBuffer data) {
if (x < 0 || y < 0 || x + w > this.width || y + h > this.height) {
// awt.63=Coordinates are not in bounds
throw new ArrayIndexOutOfBoundsException(Messages.getString("awt.63")); //$NON-NLS-1$
}
int pixels[];
int idx = 0;
if (iArray == null) {
pixels = new int[w * h * numBands];
} else {
pixels = iArray;
}
for (int i = y; i < y + h; i++) {
for (int j = x; j < x + w; j++) {
for (int n = 0; n < numBands; n++) {
pixels[idx++] = getSample(j, i, n, data);
}
}
}
return pixels;
}
/**
* Sets all of the samples for a rectangular area of pixels of the
* DataBuffer from an integer array.
*
* @param x
* the X coordinate of the rectangle of pixels.
* @param y
* the Y coordinate of the rectangle of pixels.
* @param w
* the width of the rectangle of pixels.
* @param h
* the height of the rectangle of pixels.
* @param iArray
* the integer array.
* @param data
* the image data.
*/
public void setPixels(int x, int y, int w, int h, int iArray[], DataBuffer data) {
if (x < 0 || y < 0 || x + w > this.width || y + h > this.height) {
// awt.63=Coordinates are not in bounds
throw new ArrayIndexOutOfBoundsException(Messages.getString("awt.63")); //$NON-NLS-1$
}
int idx = 0;
for (int i = y; i < y + h; i++) {
for (int j = x; j < x + w; j++) {
for (int n = 0; n < numBands; n++) {
setSample(j, i, n, iArray[idx++], data);
}
}
}
}
/**
* Gets the samples of the specified rectangular area of pixels as a float
* array.
*
* @param x
* the X coordinate of the rectangle of pixels.
* @param y
* the Y coordinate of the rectangle of pixels.
* @param w
* the width of the rectangle of pixels.
* @param h
* the height of the rectangle of pixels.
* @param fArray
* the float array where result will be stored.
* @param data
* the image data.
* @return the float array with the samples of the specified rectangular
* area of pixels.
*/
public float[] getPixels(int x, int y, int w, int h, float fArray[], DataBuffer data) {
if (x < 0 || y < 0 || x + w > this.width || y + h > this.height) {
// awt.63=Coordinates are not in bounds
throw new ArrayIndexOutOfBoundsException(Messages.getString("awt.63")); //$NON-NLS-1$
}
float pixels[];
int idx = 0;
if (fArray == null) {
pixels = new float[w * h * numBands];
} else {
pixels = fArray;
}
for (int i = y; i < y + h; i++) {
for (int j = x; j < x + w; j++) {
for (int n = 0; n < numBands; n++) {
pixels[idx++] = getSampleFloat(j, i, n, data);
}
}
}
return pixels;
}
/**
* Sets all of the samples for a rectangular area of pixels of the
* DataBuffer from a float array.
*
* @param x
* the X coordinate of the rectangle of pixels.
* @param y
* the Y coordinate of the rectangle of pixels.
* @param w
* the width of the rectangle of pixels.
* @param h
* the height of the rectangle of pixels.
* @param fArray
* the float array.
* @param data
* the image data.
*/
public void setPixels(int x, int y, int w, int h, float fArray[], DataBuffer data) {
if (x < 0 || y < 0 || x + w > this.width || y + h > this.height) {
// awt.63=Coordinates are not in bounds
throw new ArrayIndexOutOfBoundsException(Messages.getString("awt.63")); //$NON-NLS-1$
}
int idx = 0;
for (int i = y; i < y + h; i++) {
for (int j = x; j < x + w; j++) {
for (int n = 0; n < numBands; n++) {
setSample(j, i, n, fArray[idx++], data);
}
}
}
}
/**
* Gets the samples of the specified rectangular area of pixels as a double
* array.
*
* @param x
* the X coordinate of the rectangle of pixels.
* @param y
* the Y coordinate of the rectangle of pixels.
* @param w
* the width of the rectangle of pixels.
* @param h
* the height of the rectangle of pixels.
* @param dArray
* the double array where result will be stored.
* @param data
* the image data.
* @return the double array with the samples of the specified rectangular
* area of pixels.
*/
public double[] getPixels(int x, int y, int w, int h, double dArray[], DataBuffer data) {
if (x < 0 || y < 0 || x + w > this.width || y + h > this.height) {
// awt.63=Coordinates are not in bounds
throw new ArrayIndexOutOfBoundsException(Messages.getString("awt.63")); //$NON-NLS-1$
}
double pixels[];
int idx = 0;
if (dArray == null) {
pixels = new double[w * h * numBands];
} else {
pixels = dArray;
}
for (int i = y; i < y + h; i++) {
for (int j = x; j < x + w; j++) {
for (int n = 0; n < numBands; n++) {
pixels[idx++] = getSampleDouble(j, i, n, data);
}
}
}
return pixels;
}
/**
* Sets all of the samples for a rectangular area of pixels of the
* DataBuffer from a double array.
*
* @param x
* the X coordinate of the rectangle of pixels.
* @param y
* the Y coordinate of the rectangle of pixels.
* @param w
* the width of the rectangle of pixels.
* @param h
* the height of the rectangle of pixels.
* @param dArray
* the double array.
* @param data
* the image data.
*/
public void setPixels(int x, int y, int w, int h, double dArray[], DataBuffer data) {
if (x < 0 || y < 0 || x + w > this.width || y + h > this.height) {
// awt.63=Coordinates are not in bounds
throw new ArrayIndexOutOfBoundsException(Messages.getString("awt.63")); //$NON-NLS-1$
}
int idx = 0;
for (int i = y; i < y + h; i++) {
for (int j = x; j < x + w; j++) {
for (int n = 0; n < numBands; n++) {
setSample(j, i, n, dArray[idx++], data);
}
}
}
}
/**
* Sets a sample of the specified band for the specified pixel in the
* DataBuffer as integer value.
*
* @param x
* the X coordinate of the pixel.
* @param y
* the Y coordinate of the pixel.
* @param b
* the specified band.
* @param s
* the sample as an integer value.
* @param data
* the image data.
*/
public abstract void setSample(int x, int y, int b, int s, DataBuffer data);
/**
* Gets the samples of a specified band for a specified rectangular area of
* pixels as a integer array.
*
* @param x
* the X coordinate of the rectangle.
* @param y
* the Y coordinate of the rectangle.
* @param w
* the width of the rectangle.
* @param h
* the height of the rectangle.
* @param b
* the specified band.
* @param iArray
* the integer array where result will be stored.
* @param data
* the image data.
* @return the samples of a specified band for a specified rectangular area
* of pixels.
*/
public int[] getSamples(int x, int y, int w, int h, int b, int iArray[], DataBuffer data) {
int samples[];
int idx = 0;
if (iArray == null) {
samples = new int[w * h];
} else {
samples = iArray;
}
for (int i = y; i < y + h; i++) {
for (int j = x; j < x + w; j++) {
samples[idx++] = getSample(j, i, b, data);
}
}
return samples;
}
/**
* Sets the samples from an integer array in the specified band for the
* specified rectangle of pixels.
*
* @param x
* the X coordinate of the rectangle.
* @param y
* the Y coordinate of the rectangle.
* @param w
* the width of the rectangle.
* @param h
* the height of the rectangle.
* @param b
* the specified band.
* @param iArray
* the integer array.
* @param data
* the image data.
*/
public void setSamples(int x, int y, int w, int h, int b, int iArray[], DataBuffer data) {
int idx = 0;
for (int i = y; i < y + h; i++) {
for (int j = x; j < x + w; j++) {
setSample(j, i, b, iArray[idx++], data);
}
}
}
/**
* Gets the samples of a specified band for a specified rectangular area of
* pixels as a float array.
*
* @param x
* the X coordinate of the rectangle.
* @param y
* the Y coordinate of the rectangle.
* @param w
* the width of the rectangle.
* @param h
* the height of the rectangle.
* @param b
* the specified band.
* @param fArray
* the float array where result will be stored.
* @param data
* the image data.
* @return the samples of a specified band for a specified rectangular area
* of pixels.
*/
public float[] getSamples(int x, int y, int w, int h, int b, float fArray[], DataBuffer data) {
float samples[];
int idx = 0;
if (fArray == null) {
samples = new float[w * h];
} else {
samples = fArray;
}
for (int i = y; i < y + h; i++) {
for (int j = x; j < x + w; j++) {
samples[idx++] = getSampleFloat(j, i, b, data);
}
}
return samples;
}
/**
* Sets the samples from an float array in the specified band for the
* specified rectangle of pixels.
*
* @param x
* the X coordinate of the rectangle.
* @param y
* the Y coordinate of the rectangle.
* @param w
* the width of the rectangle.
* @param h
* the height of the rectangle.
* @param b
* the specified band.
* @param fArray
* the float array.
* @param data
* the image data.
*/
public void setSamples(int x, int y, int w, int h, int b, float fArray[], DataBuffer data) {
int idx = 0;
for (int i = y; i < y + h; i++) {
for (int j = x; j < x + w; j++) {
setSample(j, i, b, fArray[idx++], data);
}
}
}
/**
* Gets the samples of a specified band for a specified rectangular area of
* pixels as a double array.
*
* @param x
* the X coordinate of the rectangle.
* @param y
* the Y coordinate of the rectangle.
* @param w
* the width of the rectangle.
* @param h
* the height of the rectangle.
* @param b
* the specified band.
* @param dArray
* the double array where result will be stored.
* @param data
* the image data.
* @return the samples of a specified band for a specified rectangular area
* of pixels.
*/
public double[] getSamples(int x, int y, int w, int h, int b, double dArray[], DataBuffer data) {
double samples[];
int idx = 0;
if (dArray == null) {
samples = new double[w * h];
} else {
samples = dArray;
}
for (int i = y; i < y + h; i++) {
for (int j = x; j < x + w; j++) {
samples[idx++] = getSampleDouble(j, i, b, data);
}
}
return samples;
}
/**
* Sets the samples from an double array in the specified band for the
* specified rectangle of pixels.
*
* @param x
* the X coordinate of the rectangle.
* @param y
* the Y coordinate of the rectangle.
* @param w
* the width of the rectangle.
* @param h
* the height of the rectangle.
* @param b
* the specified band.
* @param dArray
* the double array.
* @param data
* the image data.
*/
public void setSamples(int x, int y, int w, int h, int b, double dArray[], DataBuffer data) {
int idx = 0;
for (int i = y; i < y + h; i++) {
for (int j = x; j < x + w; j++) {
setSample(j, i, b, dArray[idx++], data);
}
}
}
/**
* Sets a sample of the specified band for the specified pixel in the
* DataBuffer as float value.
*
* @param x
* the X coordinate of the pixel.
* @param y
* the Y coordinate of the pixel.
* @param b
* the specified band.
* @param s
* the sample as float value.
* @param data
* the image data.
*/
public void setSample(int x, int y, int b, float s, DataBuffer data) {
setSample(x, y, b, (int)s, data);
}
/**
* Sets a sample of the specified band for the specified pixel in the
* DataBuffer as double value.
*
* @param x
* the X coordinate of the pixel.
* @param y
* the Y coordinate of the pixel.
* @param b
* the specified band.
* @param s
* the sample as double value.
* @param data
* the image data.
*/
public void setSample(int x, int y, int b, double s, DataBuffer data) {
setSample(x, y, b, (int)s, data);
}
/**
* Creates a DataBuffer object which corresponds to the SampleModel.
*
* @return the DataBuffer object which corresponds to the SampleModel.
*/
public abstract DataBuffer createDataBuffer();
/**
* Gets the sample size in bits for the specified band.
*
* @param band
* the specified band.
* @return the sample size in bits for the specified band.
*/
public abstract int getSampleSize(int band);
/**
* Gets an array of the sample size in bits for all bands.
*
* @return an array of the sample size in bits for all bands.
*/
public abstract int[] getSampleSize();
/**
* Gets the width of the image data of this SampleModel object.
*
* @return the width of the image data of this SampleModel object.
*/
public final int getWidth() {
return width;
}
/**
* Gets the transfer type used to transfer pixels via the getDataElements
* and setDataElements methods. Transfer type value can be one of the
* predefined type from DataBuffer class or not.
*
* @return the transfer type.
*/
public int getTransferType() {
return dataType;
}
/**
* Returns the number of data elements for pixel transferring via the
* getDataElements and setDataElements methods.
*
* @return the number of data elements for pixel transferring via the
* getDataElements and setDataElements methods.
*/
public abstract int getNumDataElements();
/**
* Gets the number of bands in the image data of this SampleModel object.
*
* @return the number of bands in the image data of this SampleModel object.
*/
public final int getNumBands() {
return numBands;
}
/**
* Gets the height of the image data of this SampleModel object.
*
* @return the height of the image data of this SampleModel object.
*/
public final int getHeight() {
return height;
}
/**
* Gets the data type of image data of this SampleModel object.
*
* @return the data type of image data of this SampleModel object.
*/
public final int getDataType() {
return dataType;
}
}
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