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	/*
	* Copyright (c) 1998, 2012, Oracle and/or its affiliates. All rights reserved.
	* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
	*
	* This code is free software; you can redistribute it and/or modify it
	* under the terms of the GNU General Public License version 2 only, as
	* published by the Free Software Foundation. Oracle designates this
	* particular file as subject to the "Classpath" exception as provided
	* by Oracle in the LICENSE file that accompanied this code.
	*
	* This code is distributed in the hope that it will be useful, but WITHOUT
	* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
	* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
	* version 2 for more details (a copy is included in the LICENSE file that
	* accompanied this code).
	*
	* You should have received a copy of the GNU General Public License version
	* 2 along with this work; if not, write to the Free Software Foundation,
	* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
	*
	* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
	* or visit www.oracle.com if you need additional information or have any
	* questions.
	*/

	package sun.awt.image;
	import java.awt.image.Raster;
	import java.awt.image.WritableRaster;
	import java.awt.image.RasterFormatException;
	import java.awt.image.SampleModel;
	import java.awt.image.ComponentSampleModel;
	import java.awt.image.PixelInterleavedSampleModel;
	import java.awt.image.SinglePixelPackedSampleModel;
	import java.awt.image.DataBuffer;
	import java.awt.image.DataBufferByte;
	import java.awt.Rectangle;
	import java.awt.Point;

	/**
	* This class defines a Raster with pixels consisting of one or more
	* 8-bit data elements stored in close proximity to each other in a
	* single byte array.
	* <p>
	* The bit precision per data element is that of the data type (that
	* is, the bit precision for this Raster is 8). There is only one
	* pixel stride and one scanline stride for all bands. This type of
	* Raster can be used with a ComponentColorModel if there are multiple
	* bands, or an IndexColorModel if there is only one band.
	*
	*/
	public class ByteInterleavedRaster extends ByteComponentRaster {

	/** True if the data offsets range from 0 to (pixelStride - 1) in order. */
	boolean inOrder;

	/**
	* The DataBuffer offset, minus sampleModelTranslateX*pixelStride,
	* minus sampleModelTranslateY*scanlineStride, used to calculate
	* pixel offsets.
	*/
	int dbOffset;
	int dbOffsetPacked;

	/** True if a SinglePixelPackedSampleModel is being used. */
	boolean packed = false;

	/** If packed == true, the SampleModel's bit masks. */
	int[] bitMasks;

	/** If packed == true, the SampleModel's bit offsets. */
	int[] bitOffsets;

	/** A cached copy of minX + width for use in bounds checks. */
	private int maxX;

	/** A cached copy of minY + height for use in bounds checks. */
	private int maxY;

	/**
	* Constructs a ByteInterleavedRaster with the given SampleModel.
	* The Raster's upper left corner is origin and it is the same
	* size as the SampleModel. A DataBuffer large enough to describe the
	* Raster is automatically created. SampleModel must be of type
	* SinglePixelPackedSampleModel or InterleavedSampleModel.
	* @param sampleModel The SampleModel that specifies the layout.
	* @param origin The Point that specified the origin.
	*/
	public ByteInterleavedRaster(SampleModel sampleModel, Point origin) {
	this(sampleModel,
	sampleModel.createDataBuffer(),
	new Rectangle(origin.x,
	origin.y,
	sampleModel.getWidth(),
	sampleModel.getHeight()),
	origin,
	null);
	}

	/**
	* Constructs a ByteInterleavedRaster with the given SampleModel
	* and DataBuffer. The Raster's upper left corner is origin and
	* it is the same size as the SampleModel. The DataBuffer is not
	* initialized and must be a DataBufferByte compatible with SampleModel.
	* SampleModel must be of type SinglePixelPackedSampleModel
	* or InterleavedSampleModel.
	* @param sampleModel The SampleModel that specifies the layout.
	* @param dataBuffer The DataBufferShort that contains the image data.
	* @param origin The Point that specifies the origin.
	*/
	public ByteInterleavedRaster(SampleModel sampleModel,
	DataBuffer dataBuffer,
	Point origin) {
	this(sampleModel,
	dataBuffer,
	new Rectangle(origin.x,
	origin.y,
	sampleModel.getWidth(),
	sampleModel.getHeight()),
	origin,
	null);
	}

	/*** Analyzes a ComponentSampleModel to determine if it can function
	* as a PixelInterleavedSampleModel. In order to do so, it must use
	* only bank 0 of its DataBuffer, and the data offsets must span a range
	* of less than pixelStride.
	*
	* <p> These properties are trivially true for a 1-banded SampleModel.
	*/
	private boolean isInterleaved(ComponentSampleModel sm) {
	// Analyze ComponentSampleModel to determine if it has the
	// properties of a PixelInterleavedSampleModel

	int numBands = sampleModel.getNumBands();
	if (numBands == 1) {
	return true;
	}

	// Determine banks used
	int[] bankIndices = sm.getBankIndices();
	for (int i = 0; i < numBands; i++) {
	if (bankIndices[i] != 0) {
	return false;
	}
	}

	// Determine range of band offsets
	int[] bandOffsets = sm.getBandOffsets();
	int minOffset = bandOffsets[0];
	int maxOffset = minOffset;
	for (int i = 1; i < numBands; i++) {
	int offset = bandOffsets[i];
	if (offset < minOffset) {
	minOffset = offset;
	}
	if (offset > maxOffset) {
	maxOffset = offset;
	}
	}
	if (maxOffset - minOffset >= sm.getPixelStride()) {
	return false;
	}

	return true;
	}

	/**
	* Constructs a ByteInterleavedRaster with the given SampleModel,
	* DataBuffer, and parent. DataBuffer must be a DataBufferByte and
	* SampleModel must be of type SinglePixelPackedSampleModel
	* or InterleavedSampleModel.
	* When translated into the base Raster's
	* coordinate system, aRegion must be contained by the base Raster.
	* Origin is the coordinate in the new Raster's coordinate system of
	* the origin of the base Raster. (The base Raster is the Raster's
	* ancestor which has no parent.)
	*
	* Note that this constructor should generally be called by other
	* constructors or create methods, it should not be used directly.
	* @param sampleModel The SampleModel that specifies the layout.
	* @param dataBuffer The DataBufferShort that contains the image data.
	* @param aRegion The Rectangle that specifies the image area.
	* @param origin The Point that specifies the origin.
	* @param parent The parent (if any) of this raster.
	*/
	public ByteInterleavedRaster(SampleModel sampleModel,
	DataBuffer dataBuffer,
	Rectangle aRegion,
	Point origin,
	ByteInterleavedRaster parent) {
	super(sampleModel, dataBuffer, aRegion, origin, parent);
	this.maxX = minX + width;
	this.maxY = minY + height;

	if (!(dataBuffer instanceof DataBufferByte)) {
	throw new RasterFormatException("ByteInterleavedRasters must have " +
	"byte DataBuffers");
	}

	DataBufferByte dbb = (DataBufferByte)dataBuffer;
	this.data = stealData(dbb, 0);

	int xOffset = aRegion.x - origin.x;
	int yOffset = aRegion.y - origin.y;
	if (sampleModel instanceof PixelInterleavedSampleModel \|\|
	(sampleModel instanceof ComponentSampleModel &&
	isInterleaved((ComponentSampleModel)sampleModel))) {
	ComponentSampleModel csm = (ComponentSampleModel)sampleModel;
	this.scanlineStride = csm.getScanlineStride();
	this.pixelStride = csm.getPixelStride();
	this.dataOffsets = csm.getBandOffsets();
	for (int i = 0; i < getNumDataElements(); i++) {
	dataOffsets[i] += xOffsetpixelStride+yOffsetscanlineStride;
	}
	} else if (sampleModel instanceof SinglePixelPackedSampleModel) {
	SinglePixelPackedSampleModel sppsm =
	(SinglePixelPackedSampleModel)sampleModel;
	this.packed = true;
	this.bitMasks = sppsm.getBitMasks();
	this.bitOffsets = sppsm.getBitOffsets();
	this.scanlineStride = sppsm.getScanlineStride();
	this.pixelStride = 1;
	this.dataOffsets = new int[1];
	this.dataOffsets[0] = dbb.getOffset();
	dataOffsets[0] += xOffsetpixelStride+yOffsetscanlineStride;
	} else {
	throw new RasterFormatException("ByteInterleavedRasters must " +
	"have PixelInterleavedSampleModel, SinglePixelPackedSampleModel"+
	" or interleaved ComponentSampleModel. Sample model is " +
	sampleModel);
	}
	this.bandOffset = this.dataOffsets[0];

	this.dbOffsetPacked = dataBuffer.getOffset() -
	sampleModelTranslateY*scanlineStride -
	sampleModelTranslateX*pixelStride;
	this.dbOffset = dbOffsetPacked -
	(xOffsetpixelStride+yOffsetscanlineStride);

	// Set inOrder to true if the data elements are in order and
	// have no gaps between them
	this.inOrder = false;
	if (numDataElements == pixelStride) {
	inOrder = true;
	for (int i = 1; i < numDataElements; i++) {
	if (dataOffsets[i] - dataOffsets[0] != i) {
	inOrder = false;
	break;
	}
	}
	}

	verify();
	}

	/**
	* Returns a copy of the data offsets array. For each band the data offset
	* is the index into the band's data array, of the first sample of the
	* band.
	*/
	public int[] getDataOffsets() {
	return (int[]) dataOffsets.clone();
	}

	/**
	* Returns the data offset for the specified band. The data offset
	* is the index into the data array
	* in which the first sample of the first scanline is stored.
	* @param band The band whose offset is returned.
	*/
	public int getDataOffset(int band) {
	return dataOffsets[band];
	}

	/**
	* Returns the scanline stride -- the number of data array elements between
	* a given sample and the sample in the same column of the next row in the
	* same band.
	*/
	public int getScanlineStride() {
	return scanlineStride;
	}

	/**
	* Returns pixel stride -- the number of data array elements between two
	* samples for the same band on the same scanline.
	*/
	public int getPixelStride() {
	return pixelStride;
	}

	/**
	* Returns a reference to the data array.
	*/
	public byte[] getDataStorage() {
	return data;
	}

	/**
	* Returns the data elements for all bands at the specified
	* location.
	* An ArrayIndexOutOfBounds exception will be thrown at runtime
	* if the pixel coordinate is out of bounds.
	* A ClassCastException will be thrown if the input object is non null
	* and references anything other than an array of transferType.
	* @param x The X coordinate of the pixel location.
	* @param y The Y coordinate of the pixel location.
	* @param outData An object reference to an array of type defined by
	* getTransferType() and length getNumDataElements().
	* If null an array of appropriate type and size will be
	* allocated.
	* @return An object reference to an array of type defined by
	* getTransferType() with the request pixel data.
	*/
	public Object getDataElements(int x, int y, Object obj) {
	if ((x < this.minX) \|\| (y < this.minY) \|\|
	(x >= this.maxX) \|\| (y >= this.maxY)) {
	throw new ArrayIndexOutOfBoundsException
	("Coordinate out of bounds!");
	}
	byte outData[];
	if (obj == null) {
	outData = new byte[numDataElements];
	} else {
	outData = (byte[])obj;
	}
	int off = (y-minY)*scanlineStride +
	(x-minX)*pixelStride;

	for (int band = 0; band < numDataElements; band++) {
	outData[band] = data[dataOffsets[band] + off];
	}

	return outData;
	}

	/**
	* Returns an array of data elements from the specified rectangular
	* region.
	* An ArrayIndexOutOfBounds exception will be thrown at runtime
	* if the pixel coordinates are out of bounds.
	* A ClassCastException will be thrown if the input object is non null
	* and references anything other than an array of transferType.
	* <pre>
	* byte[] bandData = (byte[])raster.getDataElements(x, y, w, h, null);
	* int numDataElements = raster.getNumDataElements();
	* byte[] pixel = new byte[numDataElements];
	* // To find a data element at location (x2, y2)
	* System.arraycopy(bandData, ((y2-y)w + (x2-x))numDataElements,
	* pixel, 0, numDataElements);
	* </pre>
	* @param x The X coordinate of the upper left pixel location.
	* @param y The Y coordinate of the upper left pixel location.
	* @param width Width of the pixel rectangle.
	* @param height Height of the pixel rectangle.
	* @param outData An object reference to an array of type defined by
	* getTransferType() and length whgetNumDataElements().
	* If null an array of appropriate type and size will be
	* allocated.
	* @return An object reference to an array of type defined by
	* getTransferType() with the request pixel data.
	*/
	public Object getDataElements(int x, int y, int w, int h, Object obj) {
	return getByteData(x, y, w, h, (byte[])obj);
	}

	/**
	* Returns a byte array of data elements from the specified rectangular
	* region for the specified band.
	* An ArrayIndexOutOfBounds exception will be thrown at runtime
	* if the pixel coordinates are out of bounds.
	* <pre>
	* byte[] bandData = raster.getByteData(x, y, w, h, null);
	* // To find the data element at location (x2, y2)
	* byte bandElement = bandData[((y2-y)*w + (x2-x))];
	* </pre>
	* @param x The X coordinate of the upper left pixel location.
	* @param y The Y coordinate of the upper left pixel location.
	* @param width Width of the pixel rectangle.
	* @param height Height of the pixel rectangle.
	* @param band The band to return.
	* @param outData If non-null, data elements for all bands
	* at the specified location are returned in this array.
	* @return Data array with data elements for all bands.
	*/
	public byte[] getByteData(int x, int y, int w, int h,
	int band, byte[] outData) {
	// Bounds check for 'band' will be performed automatically
	if ((x < this.minX) \|\| (y < this.minY) \|\|
	(x + w > this.maxX) \|\| (y + h > this.maxY)) {
	throw new ArrayIndexOutOfBoundsException
	("Coordinate out of bounds!");
	}
	if (outData == null) {
	outData = new byte[w*h];
	}
	int yoff = (y-minY)*scanlineStride +
	(x-minX)*pixelStride + dataOffsets[band];
	int xoff;
	int off = 0;
	int xstart;
	int ystart;

	if (pixelStride == 1) {
	if (scanlineStride == w) {
	System.arraycopy(data, yoff, outData, 0, w*h);
	} else {
	for (ystart=0; ystart < h; ystart++, yoff += scanlineStride) {
	System.arraycopy(data, yoff, outData, off, w);
	off += w;
	}
	}
	} else {
	for (ystart=0; ystart < h; ystart++, yoff += scanlineStride) {
	xoff = yoff;
	for (xstart=0; xstart < w; xstart++, xoff += pixelStride) {
	outData[off++] = data[xoff];
	}
	}
	}

	return outData;
	}

	/**
	* Returns a byte array of data elements from the specified rectangular
	* region.
	* An ArrayIndexOutOfBounds exception will be thrown at runtime
	* if the pixel coordinates are out of bounds.
	* <pre>
	* byte[] bandData = raster.getByteData(x, y, w, h, null);
	* int numDataElements = raster.getnumDataElements();
	* byte[] pixel = new byte[numDataElements];
	* // To find a data element at location (x2, y2)
	* System.arraycopy(bandData, ((y2-y)w + (x2-x))numDataElements,
	* pixel, 0, numDataElements);
	* </pre>
	* @param x The X coordinate of the upper left pixel location.
	* @param y The Y coordinate of the upper left pixel location.
	* @param width Width of the pixel rectangle.
	* @param height Height of the pixel rectangle.
	* @param outData If non-null, data elements for all bands
	* at the specified location are returned in this array.
	* @return Data array with data elements for all bands.
	*/
	public byte[] getByteData(int x, int y, int w, int h, byte[] outData) {
	if ((x < this.minX) \|\| (y < this.minY) \|\|
	(x + w > this.maxX) \|\| (y + h > this.maxY)) {
	throw new ArrayIndexOutOfBoundsException
	("Coordinate out of bounds!");
	}
	if (outData == null) {
	outData = new byte[numDataElementswh];
	}
	int yoff = (y-minY)*scanlineStride +
	(x-minX)*pixelStride;
	int xoff;
	int off = 0;
	int xstart;
	int ystart;

	if (inOrder) {
	yoff += dataOffsets[0];
	int rowBytes = w*pixelStride;
	if (scanlineStride == rowBytes) {
	System.arraycopy(data, yoff, outData, off, rowBytes*h);
	} else {
	for (ystart=0; ystart < h; ystart++, yoff += scanlineStride) {
	System.arraycopy(data, yoff, outData, off, rowBytes);
	off += rowBytes;
	}
	}
	} else if (numDataElements == 1) {
	yoff += dataOffsets[0];
	for (ystart=0; ystart < h; ystart++, yoff += scanlineStride) {
	xoff = yoff;
	for (xstart=0; xstart < w; xstart++, xoff += pixelStride) {
	outData[off++] = data[xoff];
	}
	}
	} else if (numDataElements == 2) {
	yoff += dataOffsets[0];
	int d1 = dataOffsets[1] - dataOffsets[0];
	for (ystart=0; ystart < h; ystart++, yoff += scanlineStride) {
	xoff = yoff;
	for (xstart=0; xstart < w; xstart++, xoff += pixelStride) {
	outData[off++] = data[xoff];
	outData[off++] = data[xoff + d1];
	}
	}
	} else if (numDataElements == 3) {
	yoff += dataOffsets[0];
	int d1 = dataOffsets[1] - dataOffsets[0];
	int d2 = dataOffsets[2] - dataOffsets[0];
	for (ystart=0; ystart < h; ystart++, yoff += scanlineStride) {
	xoff = yoff;
	for (xstart=0; xstart < w; xstart++, xoff += pixelStride) {
	outData[off++] = data[xoff];
	outData[off++] = data[xoff + d1];
	outData[off++] = data[xoff + d2];
	}
	}
	} else if (numDataElements == 4) {
	yoff += dataOffsets[0];
	int d1 = dataOffsets[1] - dataOffsets[0];
	int d2 = dataOffsets[2] - dataOffsets[0];
	int d3 = dataOffsets[3] - dataOffsets[0];
	for (ystart=0; ystart < h; ystart++, yoff += scanlineStride) {
	xoff = yoff;
	for (xstart=0; xstart < w; xstart++, xoff += pixelStride) {
	outData[off++] = data[xoff];
	outData[off++] = data[xoff + d1];
	outData[off++] = data[xoff + d2];
	outData[off++] = data[xoff + d3];
	}
	}
	} else {
	for (ystart=0; ystart < h; ystart++, yoff += scanlineStride) {
	xoff = yoff;
	for (xstart=0; xstart < w; xstart++, xoff += pixelStride) {
	for (int c = 0; c < numDataElements; c++) {
	outData[off++] = data[dataOffsets[c] + xoff];
	}
	}
	}
	}

	return outData;
	}

	/**
	* Stores the data elements for all bands at the specified location.
	* An ArrayIndexOutOfBounds exception will be thrown at runtime
	* if the pixel coordinate is out of bounds.
	* A ClassCastException will be thrown if the input object is non null
	* and references anything other than an array of transferType.
	* @param x The X coordinate of the pixel location.
	* @param y The Y coordinate of the pixel location.
	* @param inData An object reference to an array of type defined by
	* getTransferType() and length getNumDataElements()
	* containing the pixel data to place at x,y.
	*/
	public void setDataElements(int x, int y, Object obj) {
	if ((x < this.minX) \|\| (y < this.minY) \|\|
	(x >= this.maxX) \|\| (y >= this.maxY)) {
	throw new ArrayIndexOutOfBoundsException
	("Coordinate out of bounds!");
	}
	byte inData[] = (byte[])obj;
	int off = (y-minY)*scanlineStride +
	(x-minX)*pixelStride;

	for (int i = 0; i < numDataElements; i++) {
	data[dataOffsets[i] + off] = inData[i];
	}

	markDirty();
	}

	/**
	* Stores the Raster data at the specified location.
	* An ArrayIndexOutOfBounds exception will be thrown at runtime
	* if the pixel coordinates are out of bounds.
	* @param x The X coordinate of the pixel location.
	* @param y The Y coordinate of the pixel location.
	* @param inRaster Raster of data to place at x,y location.
	*/
	public void setDataElements(int x, int y, Raster inRaster) {
	int srcOffX = inRaster.getMinX();
	int srcOffY = inRaster.getMinY();
	int dstOffX = x + srcOffX;
	int dstOffY = y + srcOffY;
	int width = inRaster.getWidth();
	int height = inRaster.getHeight();
	if ((dstOffX < this.minX) \|\| (dstOffY < this.minY) \|\|
	(dstOffX + width > this.maxX) \|\| (dstOffY + height > this.maxY)) {
	throw new ArrayIndexOutOfBoundsException
	("Coordinate out of bounds!");
	}

	setDataElements(dstOffX, dstOffY, srcOffX, srcOffY,
	width, height, inRaster);
	}

	/**
	* Stores the Raster data at the specified location.
	* @param dstX The absolute X coordinate of the destination pixel
	* that will receive a copy of the upper-left pixel of the
	* inRaster
	* @param dstY The absolute Y coordinate of the destination pixel
	* that will receive a copy of the upper-left pixel of the
	* inRaster
	* @param srcX The absolute X coordinate of the upper-left source
	* pixel that will be copied into this Raster
	* @param srcY The absolute Y coordinate of the upper-left source
	* pixel that will be copied into this Raster
	* @param width The number of pixels to store horizontally
	* @param height The number of pixels to store vertically
	* @param inRaster Raster of data to place at x,y location.
	*/
	private void setDataElements(int dstX, int dstY,
	int srcX, int srcY,
	int width, int height,
	Raster inRaster) {
	// Assume bounds checking has been performed previously
	if (width <= 0 \|\| height <= 0) {
	return;
	}

	// Write inRaster (minX, minY) to (dstX, dstY)

	int srcOffX = inRaster.getMinX();
	int srcOffY = inRaster.getMinY();
	Object tdata = null;

	if (inRaster instanceof ByteInterleavedRaster) {
	ByteInterleavedRaster bct = (ByteInterleavedRaster) inRaster;
	byte[] bdata = bct.getDataStorage();
	// copy whole scanlines
	if (inOrder && bct.inOrder && pixelStride == bct.pixelStride) {
	int toff = bct.getDataOffset(0);
	int tss = bct.getScanlineStride();
	int tps = bct.getPixelStride();

	int srcOffset = toff +
	(srcY - srcOffY) * tss +
	(srcX - srcOffX) * tps;
	int dstOffset = dataOffsets[0] +
	(dstY - minY) * scanlineStride +
	(dstX - minX) * pixelStride;

	int nbytes = width*pixelStride;
	for (int tmpY=0; tmpY < height; tmpY++) {
	System.arraycopy(bdata, srcOffset,
	data, dstOffset, nbytes);
	srcOffset += tss;
	dstOffset += scanlineStride;
	}
	markDirty();
	return;
	}
	}

	for (int startY=0; startY < height; startY++) {
	// Grab one scanline at a time
	tdata = inRaster.getDataElements(srcOffX, srcOffY+startY,
	width, 1, tdata);
	setDataElements(dstX, dstY + startY, width, 1, tdata);
	}
	}

	/**
	* Stores an array of data elements into the specified rectangular
	* region.
	* An ArrayIndexOutOfBounds exception will be thrown at runtime
	* if the pixel coordinates are out of bounds.
	* A ClassCastException will be thrown if the input object is non null
	* and references anything other than an array of transferType.
	* The data elements in the
	* data array are assumed to be packed. That is, a data element
	* for the nth band at location (x2, y2) would be found at:
	* <pre>
	* inData[((y2-y)w + (x2-x))numDataElements + n]
	* </pre>
	* @param x The X coordinate of the upper left pixel location.
	* @param y The Y coordinate of the upper left pixel location.
	* @param w Width of the pixel rectangle.
	* @param h Height of the pixel rectangle.
	* @param inData An object reference to an array of type defined by
	* getTransferType() and length whgetNumDataElements()
	* containing the pixel data to place between x,y and
	* x+h, y+h.
	*/
	public void setDataElements(int x, int y, int w, int h, Object obj) {
	putByteData(x, y, w, h, (byte[])obj);
	}

	/**
	* Stores a byte array of data elements into the specified rectangular
	* region for the specified band.
	* An ArrayIndexOutOfBounds exception will be thrown at runtime
	* if the pixel coordinates are out of bounds.
	* The data elements in the
	* data array are assumed to be packed. That is, a data element
	* at location (x2, y2) would be found at:
	* <pre>
	* inData[((y2-y)*w + (x2-x)) + n]
	* </pre>
	* @param x The X coordinate of the upper left pixel location.
	* @param y The Y coordinate of the upper left pixel location.
	* @param w Width of the pixel rectangle.
	* @param h Height of the pixel rectangle.
	* @param band The band to set.
	* @param inData The data elements to be stored.
	*/
	public void putByteData(int x, int y, int w, int h,
	int band, byte[] inData) {
	// Bounds check for 'band' will be performed automatically
	if ((x < this.minX) \|\| (y < this.minY) \|\|
	(x + w > this.maxX) \|\| (y + h > this.maxY)) {
	throw new ArrayIndexOutOfBoundsException
	("Coordinate out of bounds!");
	}
	int yoff = (y-minY)*scanlineStride +
	(x-minX)*pixelStride + dataOffsets[band];
	int xoff;
	int off = 0;
	int xstart;
	int ystart;

	if (pixelStride == 1) {
	if (scanlineStride == w) {
	System.arraycopy(inData, 0, data, yoff, w*h);
	}
	else {
	for (ystart=0; ystart < h; ystart++, yoff += scanlineStride) {
	System.arraycopy(inData, off, data, yoff, w);
	off += w;
	}
	}
	}
	else {
	for (ystart=0; ystart < h; ystart++, yoff += scanlineStride) {
	xoff = yoff;
	for (xstart=0; xstart < w; xstart++, xoff += pixelStride) {
	data[xoff] = inData[off++];
	}
	}
	}

	markDirty();
	}

	/**
	* Stores a byte array of data elements into the specified rectangular
	* region.
	* An ArrayIndexOutOfBounds exception will be thrown at runtime
	* if the pixel coordinates are out of bounds.
	* The data elements in the
	* data array are assumed to be packed. That is, a data element
	* for the nth band at location (x2, y2) would be found at:
	* <pre>
	* inData[((y2-y)w + (x2-x))numDataElements + n]
	* </pre>
	* @param x The X coordinate of the upper left pixel location.
	* @param y The Y coordinate of the upper left pixel location.
	* @param w Width of the pixel rectangle.
	* @param h Height of the pixel rectangle.
	* @param inData The data elements to be stored.
	*/
	public void putByteData(int x, int y, int w, int h, byte[] inData) {
	if ((x < this.minX) \|\| (y < this.minY) \|\|
	(x + w > this.maxX) \|\| (y + h > this.maxY)) {
	throw new ArrayIndexOutOfBoundsException
	("Coordinate out of bounds!");
	}
	int yoff = (y-minY)*scanlineStride +
	(x-minX)*pixelStride;

	int xoff;
	int off = 0;
	int xstart;
	int ystart;

	if (inOrder) {
	yoff += dataOffsets[0];
	int rowBytes = w*pixelStride;
	if (rowBytes == scanlineStride) {
	System.arraycopy(inData, 0, data, yoff, rowBytes*h);
	} else {
	for (ystart=0; ystart < h; ystart++, yoff += scanlineStride) {
	System.arraycopy(inData, off, data, yoff, rowBytes);
	off += rowBytes;
	}
	}
	} else if (numDataElements == 1) {
	yoff += dataOffsets[0];
	for (ystart=0; ystart < h; ystart++, yoff += scanlineStride) {
	xoff = yoff;
	for (xstart=0; xstart < w; xstart++, xoff += pixelStride) {
	data[xoff] = inData[off++];
	}
	}
	} else if (numDataElements == 2) {
	yoff += dataOffsets[0];
	int d1 = dataOffsets[1] - dataOffsets[0];
	for (ystart=0; ystart < h; ystart++, yoff += scanlineStride) {
	xoff = yoff;
	for (xstart=0; xstart < w; xstart++, xoff += pixelStride) {
	data[xoff] = inData[off++];
	data[xoff + d1] = inData[off++];
	}
	}
	} else if (numDataElements == 3) {
	yoff += dataOffsets[0];
	int d1 = dataOffsets[1] - dataOffsets[0];
	int d2 = dataOffsets[2] - dataOffsets[0];
	for (ystart=0; ystart < h; ystart++, yoff += scanlineStride) {
	xoff = yoff;
	for (xstart=0; xstart < w; xstart++, xoff += pixelStride) {
	data[xoff] = inData[off++];
	data[xoff + d1] = inData[off++];
	data[xoff + d2] = inData[off++];
	}
	}
	} else if (numDataElements == 4) {
	yoff += dataOffsets[0];
	int d1 = dataOffsets[1] - dataOffsets[0];
	int d2 = dataOffsets[2] - dataOffsets[0];
	int d3 = dataOffsets[3] - dataOffsets[0];
	for (ystart=0; ystart < h; ystart++, yoff += scanlineStride) {
	xoff = yoff;
	for (xstart=0; xstart < w; xstart++, xoff += pixelStride) {
	data[xoff] = inData[off++];
	data[xoff + d1] = inData[off++];
	data[xoff + d2] = inData[off++];
	data[xoff + d3] = inData[off++];
	}
	}
	} else {
	for (ystart=0; ystart < h; ystart++, yoff += scanlineStride) {
	xoff = yoff;
	for (xstart=0; xstart < w; xstart++, xoff += pixelStride) {
	for (int c = 0; c < numDataElements; c++) {
	data[dataOffsets[c] + xoff] = inData[off++];
	}
	}
	}
	}

	markDirty();
	}

	public int getSample(int x, int y, int b) {
	if ((x < this.minX) \|\| (y < this.minY) \|\|
	(x >= this.maxX) \|\| (y >= this.maxY)) {
	throw new ArrayIndexOutOfBoundsException
	("Coordinate out of bounds!");
	}
	if (packed) {
	int offset = y*scanlineStride + x + dbOffsetPacked;
	byte sample = data[offset];
	return (sample & bitMasks[b]) >>> bitOffsets[b];
	} else {
	int offset = yscanlineStride + xpixelStride + dbOffset;
	return data[offset + dataOffsets[b]] & 0xff;
	}
	}

	public void setSample(int x, int y, int b, int s) {
	if ((x < this.minX) \|\| (y < this.minY) \|\|
	(x >= this.maxX) \|\| (y >= this.maxY)) {
	throw new ArrayIndexOutOfBoundsException
	("Coordinate out of bounds!");
	}
	if (packed) {
	int offset = y*scanlineStride + x + dbOffsetPacked;
	int bitMask = bitMasks[b];

	byte value = data[offset];
	value &= ~bitMask;
	value \|= (s << bitOffsets[b]) & bitMask;
	data[offset] = value;
	} else {
	int offset = yscanlineStride + xpixelStride + dbOffset;
	data[offset + dataOffsets[b]] = (byte)s;
	}

	markDirty();
	}

	public int[] getSamples(int x, int y, int w, int h, int b,
	int[] iArray) {
	if ((x < this.minX) \|\| (y < this.minY) \|\|
	(x + w > this.maxX) \|\| (y + h > this.maxY)) {
	throw new ArrayIndexOutOfBoundsException
	("Coordinate out of bounds!");
	}
	int samples[];
	if (iArray != null) {
	samples = iArray;
	} else {
	samples = new int [w*h];
	}

	int lineOffset = yscanlineStride + xpixelStride;
	int dstOffset = 0;

	if (packed) {
	lineOffset += dbOffsetPacked;
	int bitMask = bitMasks[b];
	int bitOffset = bitOffsets[b];

	for (int j = 0; j < h; j++) {
	int sampleOffset = lineOffset;
	for (int i = 0; i < w; i++) {
	int value = data[sampleOffset++];
	samples[dstOffset++] = ((value & bitMask) >>> bitOffset);
	}
	lineOffset += scanlineStride;
	}
	} else {
	lineOffset += dbOffset + dataOffsets[b];
	for (int j = 0; j < h; j++) {
	int sampleOffset = lineOffset;
	for (int i = 0; i < w; i++) {
	samples[dstOffset++] = data[sampleOffset] & 0xff;
	sampleOffset += pixelStride;
	}
	lineOffset += scanlineStride;
	}
	}

	return samples;
	}

	public void setSamples(int x, int y, int w, int h, int b, int iArray[]) {
	if ((x < this.minX) \|\| (y < this.minY) \|\|
	(x + w > this.maxX) \|\| (y + h > this.maxY)) {
	throw new ArrayIndexOutOfBoundsException
	("Coordinate out of bounds!");
	}
	int lineOffset = yscanlineStride + xpixelStride;
	int srcOffset = 0;

	if (packed) {
	lineOffset += dbOffsetPacked;
	int bitMask = bitMasks[b];

	for (int j = 0; j < h; j++) {
	int sampleOffset = lineOffset;
	for (int i = 0; i < w; i++) {
	byte value = data[sampleOffset];
	value &= ~bitMask;
	int sample = iArray[srcOffset++];
	value \|= (sample << bitOffsets[b]) & bitMask;
	data[sampleOffset++] = value;
	}
	lineOffset += scanlineStride;
	}
	} else {
	lineOffset += dbOffset + dataOffsets[b];
	for (int i = 0; i < h; i++) {
	int sampleOffset = lineOffset;
	for (int j = 0; j < w; j++) {
	data[sampleOffset] = (byte)iArray[srcOffset++];
	sampleOffset += pixelStride;
	}
	lineOffset += scanlineStride;
	}
	}

	markDirty();
	}

	public int[] getPixels(int x, int y, int w, int h, int[] iArray) {
	if ((x < this.minX) \|\| (y < this.minY) \|\|
	(x + w > this.maxX) \|\| (y + h > this.maxY)) {
	throw new ArrayIndexOutOfBoundsException
	("Coordinate out of bounds!");
	}
	int pixels[];
	if (iArray != null) {
	pixels = iArray;
	} else {
	pixels = new int[whnumBands];
	}

	int lineOffset = yscanlineStride + xpixelStride;
	int dstOffset = 0;

	if (packed) {
	lineOffset += dbOffsetPacked;
	for (int j = 0; j < h; j++) {
	for (int i = 0; i < w; i++) {
	int value = data[lineOffset + i];
	for (int k = 0; k < numBands; k++) {
	pixels[dstOffset++] =
	(value & bitMasks[k]) >>> bitOffsets[k];
	}
	}
	lineOffset += scanlineStride;
	}
	} else {
	lineOffset += dbOffset;
	int d0 = dataOffsets[0];

	if (numBands == 1) {
	for (int j = 0; j < h; j++) {
	int pixelOffset = lineOffset + d0;
	for (int i = 0; i < w; i++) {
	pixels[dstOffset++] = data[pixelOffset] & 0xff;
	pixelOffset += pixelStride;
	}
	lineOffset += scanlineStride;
	}
	} else if (numBands == 2) {
	int d1 = dataOffsets[1] - d0;
	for (int j = 0; j < h; j++) {
	int pixelOffset = lineOffset + d0;
	for (int i = 0; i < w; i++) {
	pixels[dstOffset++] = data[pixelOffset] & 0xff;
	pixels[dstOffset++] = data[pixelOffset + d1] & 0xff;
	pixelOffset += pixelStride;
	}
	lineOffset += scanlineStride;
	}
	} else if (numBands == 3) {
	int d1 = dataOffsets[1] - d0;
	int d2 = dataOffsets[2] - d0;
	for (int j = 0; j < h; j++) {
	int pixelOffset = lineOffset + d0;
	for (int i = 0; i < w; i++) {
	pixels[dstOffset++] = data[pixelOffset] & 0xff;
	pixels[dstOffset++] = data[pixelOffset + d1] & 0xff;
	pixels[dstOffset++] = data[pixelOffset + d2] & 0xff;
	pixelOffset += pixelStride;
	}
	lineOffset += scanlineStride;
	}
	} else if (numBands == 4) {
	int d1 = dataOffsets[1] - d0;
	int d2 = dataOffsets[2] - d0;
	int d3 = dataOffsets[3] - d0;
	for (int j = 0; j < h; j++) {
	int pixelOffset = lineOffset + d0;
	for (int i = 0; i < w; i++) {
	pixels[dstOffset++] = data[pixelOffset] & 0xff;
	pixels[dstOffset++] = data[pixelOffset + d1] & 0xff;
	pixels[dstOffset++] = data[pixelOffset + d2] & 0xff;
	pixels[dstOffset++] = data[pixelOffset + d3] & 0xff;
	pixelOffset += pixelStride;
	}
	lineOffset += scanlineStride;
	}
	} else {
	for (int j = 0; j < h; j++) {
	int pixelOffset = lineOffset;
	for (int i = 0; i < w; i++) {
	for (int k = 0; k < numBands; k++) {
	pixels[dstOffset++] =
	data[pixelOffset + dataOffsets[k]] & 0xff;
	}
	pixelOffset += pixelStride;
	}
	lineOffset += scanlineStride;
	}
	}
	}

	return pixels;
	}

	public void setPixels(int x, int y, int w, int h, int[] iArray) {
	if ((x < this.minX) \|\| (y < this.minY) \|\|
	(x + w > this.maxX) \|\| (y + h > this.maxY)) {
	throw new ArrayIndexOutOfBoundsException
	("Coordinate out of bounds!");
	}
	int lineOffset = yscanlineStride + xpixelStride;
	int srcOffset = 0;

	if (packed) {
	lineOffset += dbOffsetPacked;
	for (int j = 0; j < h; j++) {
	for (int i = 0; i < w; i++) {
	int value = 0;
	for (int k = 0; k < numBands; k++) {
	int srcValue = iArray[srcOffset++];
	value \|= ((srcValue << bitOffsets[k])
	& bitMasks[k]);
	}
	data[lineOffset + i] = (byte)value;
	}
	lineOffset += scanlineStride;
	}
	} else {
	lineOffset += dbOffset;
	int d0 = dataOffsets[0];

	if (numBands == 1) {
	for (int j = 0; j < h; j++) {
	int pixelOffset = lineOffset + d0;
	for (int i = 0; i < w; i++) {
	data[pixelOffset] = (byte)iArray[srcOffset++];
	pixelOffset += pixelStride;
	}
	lineOffset += scanlineStride;
	}
	} else if (numBands == 2) {
	int d1 = dataOffsets[1] - d0;
	for (int j = 0; j < h; j++) {
	int pixelOffset = lineOffset + d0;
	for (int i = 0; i < w; i++) {
	data[pixelOffset] = (byte)iArray[srcOffset++];
	data[pixelOffset + d1] = (byte)iArray[srcOffset++];
	pixelOffset += pixelStride;
	}
	lineOffset += scanlineStride;
	}
	} else if (numBands == 3) {
	int d1 = dataOffsets[1] - d0;
	int d2 = dataOffsets[2] - d0;
	for (int j = 0; j < h; j++) {
	int pixelOffset = lineOffset + d0;
	for (int i = 0; i < w; i++) {
	data[pixelOffset] = (byte)iArray[srcOffset++];
	data[pixelOffset + d1] = (byte)iArray[srcOffset++];
	data[pixelOffset + d2] = (byte)iArray[srcOffset++];
	pixelOffset += pixelStride;
	}
	lineOffset += scanlineStride;
	}
	} else if (numBands == 4) {
	int d1 = dataOffsets[1] - d0;
	int d2 = dataOffsets[2] - d0;
	int d3 = dataOffsets[3] - d0;
	for (int j = 0; j < h; j++) {
	int pixelOffset = lineOffset + d0;
	for (int i = 0; i < w; i++) {
	data[pixelOffset] = (byte)iArray[srcOffset++];
	data[pixelOffset + d1] = (byte)iArray[srcOffset++];
	data[pixelOffset + d2] = (byte)iArray[srcOffset++];
	data[pixelOffset + d3] = (byte)iArray[srcOffset++];
	pixelOffset += pixelStride;
	}
	lineOffset += scanlineStride;
	}
	} else {
	for (int j = 0; j < h; j++) {
	int pixelOffset = lineOffset;
	for (int i = 0; i < w; i++) {
	for (int k = 0; k < numBands; k++) {
	data[pixelOffset + dataOffsets[k]] =
	(byte)iArray[srcOffset++];
	}
	pixelOffset += pixelStride;
	}
	lineOffset += scanlineStride;
	}
	}
	}

	markDirty();
	}

	public void setRect(int dx, int dy, Raster srcRaster) {
	if (!(srcRaster instanceof ByteInterleavedRaster)) {
	super.setRect(dx, dy, srcRaster);
	return;
	}

	int width = srcRaster.getWidth();
	int height = srcRaster.getHeight();
	int srcOffX = srcRaster.getMinX();
	int srcOffY = srcRaster.getMinY();
	int dstOffX = dx+srcOffX;
	int dstOffY = dy+srcOffY;

	// Clip to this raster
	if (dstOffX < this.minX) {
	int skipX = minX - dstOffX;
	width -= skipX;
	srcOffX += skipX;
	dstOffX = this.minX;
	}
	if (dstOffY < this.minY) {
	int skipY = this.minY - dstOffY;
	height -= skipY;
	srcOffY += skipY;
	dstOffY = this.minY;
	}
	if (dstOffX+width > this.maxX) {
	width = this.maxX - dstOffX;
	}
	if (dstOffY+height > this.maxY) {
	height = this.maxY - dstOffY;
	}

	setDataElements(dstOffX, dstOffY,
	srcOffX, srcOffY,
	width, height, srcRaster);
	}


	/**
	* Creates a subraster given a region of the raster. The x and y
	* coordinates specify the horizontal and vertical offsets
	* from the upper-left corner of this raster to the upper-left corner
	* of the subraster. A subset of the bands of the parent Raster may
	* be specified. If this is null, then all the bands are present in the
	* subRaster. A translation to the subRaster may also be specified.
	* Note that the subraster will reference the same
	* DataBuffer as the parent raster, but using different offsets.
	* @param x X offset.
	* @param y Y offset.
	* @param width Width (in pixels) of the subraster.
	* @param height Height (in pixels) of the subraster.
	* @param x0 Translated X origin of the subraster.
	* @param y0 Translated Y origin of the subraster.
	* @param bandList Array of band indices.
	* @exception RasterFormatException
	* if the specified bounding box is outside of the parent raster.
	*/
	public Raster createChild(int x, int y,
	int width, int height,
	int x0, int y0, int[] bandList) {
	WritableRaster newRaster = createWritableChild(x, y,
	width, height,
	x0, y0,
	bandList);
	return (Raster) newRaster;
	}

	/**
	* Creates a Writable subRaster given a region of the Raster. The x and y
	* coordinates specify the horizontal and vertical offsets
	* from the upper-left corner of this Raster to the upper-left corner
	* of the subRaster. A subset of the bands of the parent Raster may
	* be specified. If this is null, then all the bands are present in the
	* subRaster. A translation to the subRaster may also be specified.
	* Note that the subRaster will reference the same
	* DataBuffer as the parent Raster, but using different offsets.
	* @param x X offset.
	* @param y Y offset.
	* @param width Width (in pixels) of the subraster.
	* @param height Height (in pixels) of the subraster.
	* @param x0 Translated X origin of the subraster.
	* @param y0 Translated Y origin of the subraster.
	* @param bandList Array of band indices.
	* @exception RasterFormatException
	* if the specified bounding box is outside of the parent Raster.
	*/
	public WritableRaster createWritableChild(int x, int y,
	int width, int height,
	int x0, int y0,
	int[] bandList) {
	if (x < this.minX) {
	throw new RasterFormatException("x lies outside the raster");
	}
	if (y < this.minY) {
	throw new RasterFormatException("y lies outside the raster");
	}
	if ((x+width < x) \|\| (x+width > this.minX + this.width)) {
	throw new RasterFormatException("(x + width) is outside of Raster");
	}
	if ((y+height < y) \|\| (y+height > this.minY + this.height)) {
	throw new RasterFormatException("(y + height) is outside of Raster");
	}

	SampleModel sm;

	if (bandList != null)
	sm = sampleModel.createSubsetSampleModel(bandList);
	else
	sm = sampleModel;

	int deltaX = x0 - x;
	int deltaY = y0 - y;

	return new ByteInterleavedRaster(sm,
	dataBuffer,
	new Rectangle(x0, y0, width, height),
	new Point(sampleModelTranslateX+deltaX,
	sampleModelTranslateY+deltaY),
	this);
	}

	/**
	* Creates a Raster with the same layout but using a different
	* width and height, and with new zeroed data arrays.
	*/
	public WritableRaster createCompatibleWritableRaster(int w, int h) {
	if (w <= 0 \|\| h <=0) {
	throw new RasterFormatException("negative "+
	((w <= 0) ? "width" : "height"));
	}

	SampleModel sm = sampleModel.createCompatibleSampleModel(w, h);

	return new ByteInterleavedRaster(sm, new Point(0,0));

	}

	/**
	* Creates a Raster with the same layout and the same
	* width and height, and with new zeroed data arrays. If
	* the Raster is a subRaster, this will call
	* createCompatibleRaster(width, height).
	*/
	public WritableRaster createCompatibleWritableRaster() {
	return createCompatibleWritableRaster(width,height);
	}

	public String toString() {
	return new String ("ByteInterleavedRaster: width = "+width+" height = "
	+ height
	+" #numDataElements "+numDataElements
	// +" xOff = "+xOffset+" yOff = "+yOffset
	+" dataOff[0] = "+dataOffsets[0]);
	}

	// /**
	// * For debugging... prints a region of a one-band ByteInterleavedRaster
	// */
	// public void print(int x, int y, int w, int h) {
	// // REMIND: Only works for 1 band!
	// System.out.println(this);
	// int offset = dataOffsets[0] + yscanlineStride + xpixelStride;
	// int off;
	// for (int yoff=0; yoff < h; yoff++, offset += scanlineStride) {
	// off = offset;
	// System.out.print("Line "+(y+yoff)+": ");
	// for (int xoff = 0; xoff < w; xoff++, off+= pixelStride) {
	// String s = Integer.toHexString(data[off]);
	// if (s.length() == 8) {
	// s = s.substring(6,8);
	// }
	// System.out.print(s+" ");
	// }
	// System.out.println("");
	// }
	// }
	}

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