My first initial commit with all of mine experimental changes.

Dmitry Kabak (userdima committed 13 years ago

Commit d37b88d1 parent 3f5b46618352 files · +2598093 −-8690Browse files

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	1	+/*
	2	+ * Copyright (c) 1997, 2008, Oracle and/or its affiliates. All rights reserved.
	3	+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
	4	+ *
	5	+ * This code is free software; you can redistribute it and/or modify it
	6	+ * under the terms of the GNU General Public License version 2 only, as
	7	+ * published by the Free Software Foundation. Oracle designates this
	8	+ * particular file as subject to the "Classpath" exception as provided
	9	+ * by Oracle in the LICENSE file that accompanied this code.
	10	+ *
	11	+ * This code is distributed in the hope that it will be useful, but WITHOUT
	12	+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
	13	+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
	14	+ * version 2 for more details (a copy is included in the LICENSE file that
	15	+ * accompanied this code).
	16	+ *
	17	+ * You should have received a copy of the GNU General Public License version
	18	+ * 2 along with this work; if not, write to the Free Software Foundation,
	19	+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
	20	+ *
	21	+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
	22	+ * or visit www.oracle.com if you need additional information or have any
	23	+ * questions.
	24	+ */
	25	+
	26	+/* ****************************************************************
	27	+ ******************************************************************
	28	+ ******************************************************************
	29	+ *** COPYRIGHT (c) Eastman Kodak Company, 1997
	30	+ *** As an unpublished work pursuant to Title 17 of the United
	31	+ *** States Code. All rights reserved.
	32	+ ******************************************************************
	33	+ ******************************************************************
	34	+ ******************************************************************/
	35	+
	36	+
	37	+package java.awt.image;
	38	+import java.awt.Rectangle;
	39	+import java.awt.Point;
	40	+
	41	+import sun.awt.image.ByteInterleavedRaster;
	42	+import sun.awt.image.ShortInterleavedRaster;
	43	+import sun.awt.image.IntegerInterleavedRaster;
	44	+import sun.awt.image.ByteBandedRaster;
	45	+import sun.awt.image.ShortBandedRaster;
	46	+import sun.awt.image.BytePackedRaster;
	47	+import sun.awt.image.SunWritableRaster;
	48	+
	49	+/**
	50	+ * A class representing a rectangular array of pixels. A Raster
	51	+ * encapsulates a DataBuffer that stores the sample values and a
	52	+ * SampleModel that describes how to locate a given sample value in a
	53	+ * DataBuffer.
	54	+ * <p>
	55	+ * A Raster defines values for pixels occupying a particular
	56	+ * rectangular area of the plane, not necessarily including (0, 0).
	57	+ * The rectangle, known as the Raster's bounding rectangle and
	58	+ * available by means of the getBounds method, is defined by minX,
	59	+ * minY, width, and height values. The minX and minY values define
	60	+ * the coordinate of the upper left corner of the Raster. References
	61	+ * to pixels outside of the bounding rectangle may result in an
	62	+ * exception being thrown, or may result in references to unintended
	63	+ * elements of the Raster's associated DataBuffer. It is the user's
	64	+ * responsibility to avoid accessing such pixels.
	65	+ * <p>
	66	+ * A SampleModel describes how samples of a Raster
	67	+ * are stored in the primitive array elements of a DataBuffer.
	68	+ * Samples may be stored one per data element, as in a
	69	+ * PixelInterleavedSampleModel or BandedSampleModel, or packed several to
	70	+ * an element, as in a SinglePixelPackedSampleModel or
	71	+ * MultiPixelPackedSampleModel. The SampleModel is also
	72	+ * controls whether samples are sign extended, allowing unsigned
	73	+ * data to be stored in signed Java data types such as byte, short, and
	74	+ * int.
	75	+ * <p>
	76	+ * Although a Raster may live anywhere in the plane, a SampleModel
	77	+ * makes use of a simple coordinate system that starts at (0, 0). A
	78	+ * Raster therefore contains a translation factor that allows pixel
	79	+ * locations to be mapped between the Raster's coordinate system and
	80	+ * that of the SampleModel. The translation from the SampleModel
	81	+ * coordinate system to that of the Raster may be obtained by the
	82	+ * getSampleModelTranslateX and getSampleModelTranslateY methods.
	83	+ * <p>
	84	+ * A Raster may share a DataBuffer with another Raster either by
	85	+ * explicit construction or by the use of the createChild and
	86	+ * createTranslatedChild methods. Rasters created by these methods
	87	+ * can return a reference to the Raster they were created from by
	88	+ * means of the getParent method. For a Raster that was not
	89	+ * constructed by means of a call to createTranslatedChild or
	90	+ * createChild, getParent will return null.
	91	+ * <p>
	92	+ * The createTranslatedChild method returns a new Raster that
	93	+ * shares all of the data of the current Raster, but occupies a
	94	+ * bounding rectangle of the same width and height but with a
	95	+ * different starting point. For example, if the parent Raster
	96	+ * occupied the region (10, 10) to (100, 100), and the translated
	97	+ * Raster was defined to start at (50, 50), then pixel (20, 20) of the
	98	+ * parent and pixel (60, 60) of the child occupy the same location in
	99	+ * the DataBuffer shared by the two Rasters. In the first case, (-10,
	100	+ * -10) should be added to a pixel coordinate to obtain the
	101	+ * corresponding SampleModel coordinate, and in the second case (-50,
	102	+ * -50) should be added.
	103	+ * <p>
	104	+ * The translation between a parent and child Raster may be
	105	+ * determined by subtracting the child's sampleModelTranslateX and
	106	+ * sampleModelTranslateY values from those of the parent.
	107	+ * <p>
	108	+ * The createChild method may be used to create a new Raster
	109	+ * occupying only a subset of its parent's bounding rectangle
	110	+ * (with the same or a translated coordinate system) or
	111	+ * with a subset of the bands of its parent.
	112	+ * <p>
	113	+ * All constructors are protected. The correct way to create a
	114	+ * Raster is to use one of the static create methods defined in this
	115	+ * class. These methods create instances of Raster that use the
	116	+ * standard Interleaved, Banded, and Packed SampleModels and that may
	117	+ * be processed more efficiently than a Raster created by combining
	118	+ * an externally generated SampleModel and DataBuffer.
	119	+ * @see java.awt.image.DataBuffer
	120	+ * @see java.awt.image.SampleModel
	121	+ * @see java.awt.image.PixelInterleavedSampleModel
	122	+ * @see java.awt.image.BandedSampleModel
	123	+ * @see java.awt.image.SinglePixelPackedSampleModel
	124	+ * @see java.awt.image.MultiPixelPackedSampleModel
	125	+ */
	126	+public class Raster {
	127	+
	128	+ /**
	129	+ * The SampleModel that describes how pixels from this Raster
	130	+ * are stored in the DataBuffer.
	131	+ */
	132	+ protected SampleModel sampleModel;
	133	+
	134	+ /** The DataBuffer that stores the image data. */
	135	+ protected DataBuffer dataBuffer;
	136	+
	137	+ /** The X coordinate of the upper-left pixel of this Raster. */
	138	+ protected int minX;
	139	+
	140	+ /** The Y coordinate of the upper-left pixel of this Raster. */
	141	+ protected int minY;
	142	+
	143	+ /** The width of this Raster. */
	144	+ protected int width;
	145	+
	146	+ /** The height of this Raster. */
	147	+ protected int height;
	148	+
	149	+ /**
	150	+ * The X translation from the coordinate space of the
	151	+ * Raster's SampleModel to that of the Raster.
	152	+ */
	153	+ protected int sampleModelTranslateX;
	154	+
	155	+ /**
	156	+ * The Y translation from the coordinate space of the
	157	+ * Raster's SampleModel to that of the Raster.
	158	+ */
	159	+ protected int sampleModelTranslateY;
	160	+
	161	+ /** The number of bands in the Raster. */
	162	+ protected int numBands;
	163	+
	164	+ /** The number of DataBuffer data elements per pixel. */
	165	+ protected int numDataElements;
	166	+
	167	+ /** The parent of this Raster, or null. */
	168	+ protected Raster parent;
	169	+
	170	+ static private native void initIDs();
	171	+ static {
	172	+ ColorModel.loadLibraries();
	173	+ initIDs();
	174	+ }
	175	+
	176	+ /**
	177	+ * Creates a Raster based on a PixelInterleavedSampleModel with the
	178	+ * specified data type, width, height, and number of bands.
	179	+ *
	180	+ * <p> The upper left corner of the Raster is given by the
	181	+ * location argument. If location is null, (0, 0) will be used.
	182	+ * The dataType parameter should be one of the enumerated values
	183	+ * defined in the DataBuffer class.
	184	+ *
	185	+ * <p> Note that interleaved <code>DataBuffer.TYPE_INT</code>
	186	+ * Rasters are not supported. To create a 1-band Raster of type
	187	+ * <code>DataBuffer.TYPE_INT</code>, use
	188	+ * Raster.createPackedRaster().
	189	+ * <p> The only dataTypes supported currently are TYPE_BYTE
	190	+ * and TYPE_USHORT.
	191	+ * @param dataType the data type for storing samples
	192	+ * @param w the width in pixels of the image data
	193	+ * @param h the height in pixels of the image data
	194	+ * @param bands the number of bands
	195	+ * @param location the upper-left corner of the <code>Raster</code>
	196	+ * @return a WritableRaster object with the specified data type,
	197	+ * width, height and number of bands.
	198	+ * @throws RasterFormatException if <code>w</code> or <code>h</code>
	199	+ * is less than or equal to zero, or computing either
	200	+ * <code>location.x + w</code> or
	201	+ * <code>location.y + h</code> results in integer
	202	+ * overflow
	203	+ */
	204	+ public static WritableRaster createInterleavedRaster(int dataType,
	205	+ int w, int h,
	206	+ int bands,
	207	+ Point location) {
	208	+ int[] bandOffsets = new int[bands];
	209	+ for (int i = 0; i < bands; i++) {
	210	+ bandOffsets[i] = i;
	211	+ }
	212	+ return createInterleavedRaster(dataType, w, h, w*bands, bands,
	213	+ bandOffsets, location);
	214	+ }
	215	+
	216	+ /**
	217	+ * Creates a Raster based on a PixelInterleavedSampleModel with the
	218	+ * specified data type, width, height, scanline stride, pixel
	219	+ * stride, and band offsets. The number of bands is inferred from
	220	+ * bandOffsets.length.
	221	+ *
	222	+ * <p> The upper left corner of the Raster is given by the
	223	+ * location argument. If location is null, (0, 0) will be used.
	224	+ * The dataType parameter should be one of the enumerated values
	225	+ * defined in the DataBuffer class.
	226	+ *
	227	+ * <p> Note that interleaved <code>DataBuffer.TYPE_INT</code>
	228	+ * Rasters are not supported. To create a 1-band Raster of type
	229	+ * <code>DataBuffer.TYPE_INT</code>, use
	230	+ * Raster.createPackedRaster().
	231	+ * <p> The only dataTypes supported currently are TYPE_BYTE
	232	+ * and TYPE_USHORT.
	233	+ * @param dataType the data type for storing samples
	234	+ * @param w the width in pixels of the image data
	235	+ * @param h the height in pixels of the image data
	236	+ * @param scanlineStride the line stride of the image data
	237	+ * @param pixelStride the pixel stride of the image data
	238	+ * @param bandOffsets the offsets of all bands
	239	+ * @param location the upper-left corner of the <code>Raster</code>
	240	+ * @return a WritableRaster object with the specified data type,
	241	+ * width, height, scanline stride, pixel stride and band
	242	+ * offsets.
	243	+ * @throws RasterFormatException if <code>w</code> or <code>h</code>
	244	+ * is less than or equal to zero, or computing either
	245	+ * <code>location.x + w</code> or
	246	+ * <code>location.y + h</code> results in integer
	247	+ * overflow
	248	+ * @throws IllegalArgumentException if <code>dataType</code> is not
	249	+ * one of the supported data types, which are
	250	+ * <code>DataBuffer.TYPE_BYTE</code>, or
	251	+ * <code>DataBuffer.TYPE_USHORT</code>.
	252	+ */
	253	+ public static WritableRaster createInterleavedRaster(int dataType,
	254	+ int w, int h,
	255	+ int scanlineStride,
	256	+ int pixelStride,
	257	+ int bandOffsets[],
	258	+ Point location) {
	259	+ DataBuffer d;
	260	+ int bands = bandOffsets.length;
	261	+
	262	+ int maxBandOff = bandOffsets[0];
	263	+ for (int i=1; i < bands; i++) {
	264	+ if (bandOffsets[i] > maxBandOff) {
	265	+ maxBandOff = bandOffsets[i];
	266	+ }
	267	+ }
	268	+ int size = maxBandOff + scanlineStride(h-1) + pixelStride(w-1) + 1;
	269	+ switch(dataType) {
	270	+ case DataBuffer.TYPE_BYTE:
	271	+ d = new DataBufferByte(size);
	272	+ break;
	273	+
	274	+ case DataBuffer.TYPE_USHORT:
	275	+ d = new DataBufferUShort(size);
	276	+ break;
	277	+
	278	+ default:
	279	+ throw new IllegalArgumentException("Unsupported data type " +
	280	+ dataType);
	281	+ }
	282	+
	283	+ return createInterleavedRaster(d, w, h, scanlineStride,
	284	+ pixelStride, bandOffsets, location);
	285	+ }
	286	+
	287	+ /**
	288	+ * Creates a Raster based on a BandedSampleModel with the
	289	+ * specified data type, width, height, and number of bands.
	290	+ *
	291	+ * <p> The upper left corner of the Raster is given by the
	292	+ * location argument. If location is null, (0, 0) will be used.
	293	+ * The dataType parameter should be one of the enumerated values
	294	+ * defined in the DataBuffer class.
	295	+ *
	296	+ * <p> The only dataTypes supported currently are TYPE_BYTE, TYPE_USHORT,
	297	+ * and TYPE_INT.
	298	+ * @param dataType the data type for storing samples
	299	+ * @param w the width in pixels of the image data
	300	+ * @param h the height in pixels of the image data
	301	+ * @param bands the number of bands
	302	+ * @param location the upper-left corner of the <code>Raster</code>
	303	+ * @return a WritableRaster object with the specified data type,
	304	+ * width, height and number of bands.
	305	+ * @throws RasterFormatException if <code>w</code> or <code>h</code>
	306	+ * is less than or equal to zero, or computing either
	307	+ * <code>location.x + w</code> or
	308	+ * <code>location.y + h</code> results in integer
	309	+ * overflow
	310	+ * @throws ArrayIndexOutOfBoundsException if <code>bands</code>
	311	+ * is less than 1
	312	+ */
	313	+ public static WritableRaster createBandedRaster(int dataType,
	314	+ int w, int h,
	315	+ int bands,
	316	+ Point location) {
	317	+ if (bands < 1) {
	318	+ throw new ArrayIndexOutOfBoundsException("Number of bands ("+
	319	+ bands+") must"+
	320	+ " be greater than 0");
	321	+ }
	322	+ int[] bankIndices = new int[bands];
	323	+ int[] bandOffsets = new int[bands];
	324	+ for (int i = 0; i < bands; i++) {
	325	+ bankIndices[i] = i;
	326	+ bandOffsets[i] = 0;
	327	+ }
	328	+
	329	+ return createBandedRaster(dataType, w, h, w,
	330	+ bankIndices, bandOffsets,
	331	+ location);
	332	+ }
	333	+
	334	+ /**
	335	+ * Creates a Raster based on a BandedSampleModel with the
	336	+ * specified data type, width, height, scanline stride, bank
	337	+ * indices and band offsets. The number of bands is inferred from
	338	+ * bankIndices.length and bandOffsets.length, which must be the
	339	+ * same.
	340	+ *
	341	+ * <p> The upper left corner of the Raster is given by the
	342	+ * location argument. The dataType parameter should be one of the
	343	+ * enumerated values defined in the DataBuffer class.
	344	+ *
	345	+ * <p> The only dataTypes supported currently are TYPE_BYTE, TYPE_USHORT,
	346	+ * and TYPE_INT.
	347	+ * @param dataType the data type for storing samples
	348	+ * @param w the width in pixels of the image data
	349	+ * @param h the height in pixels of the image data
	350	+ * @param scanlineStride the line stride of the image data
	351	+ * @param bankIndices the bank indices for each band
	352	+ * @param bandOffsets the offsets of all bands
	353	+ * @param location the upper-left corner of the <code>Raster</code>
	354	+ * @return a WritableRaster object with the specified data type,
	355	+ * width, height, scanline stride, bank indices and band
	356	+ * offsets.
	357	+ * @throws RasterFormatException if <code>w</code> or <code>h</code>
	358	+ * is less than or equal to zero, or computing either
	359	+ * <code>location.x + w</code> or
	360	+ * <code>location.y + h</code> results in integer
	361	+ * overflow
	362	+ * @throws IllegalArgumentException if <code>dataType</code> is not
	363	+ * one of the supported data types, which are
	364	+ * <code>DataBuffer.TYPE_BYTE</code>,
	365	+ * <code>DataBuffer.TYPE_USHORT</code>
	366	+ * or <code>DataBuffer.TYPE_INT</code>
	367	+ * @throws ArrayIndexOutOfBoundsException if <code>bankIndices</code>
	368	+ * or <code>bandOffsets</code> is <code>null</code>
	369	+ */
	370	+ public static WritableRaster createBandedRaster(int dataType,
	371	+ int w, int h,
	372	+ int scanlineStride,
	373	+ int bankIndices[],
	374	+ int bandOffsets[],
	375	+ Point location) {
	376	+ DataBuffer d;
	377	+ int bands = bandOffsets.length;
	378	+
	379	+ if (bankIndices == null) {
	380	+ throw new
	381	+ ArrayIndexOutOfBoundsException("Bank indices array is null");
	382	+ }
	383	+ if (bandOffsets == null) {
	384	+ throw new
	385	+ ArrayIndexOutOfBoundsException("Band offsets array is null");
	386	+ }
	387	+
	388	+ // Figure out the #banks and the largest band offset
	389	+ int maxBank = bankIndices[0];
	390	+ int maxBandOff = bandOffsets[0];
	391	+ for (int i = 1; i < bands; i++) {
	392	+ if (bankIndices[i] > maxBank) {
	393	+ maxBank = bankIndices[i];
	394	+ }
	395	+ if (bandOffsets[i] > maxBandOff) {
	396	+ maxBandOff = bandOffsets[i];
	397	+ }
	398	+ }
	399	+ int banks = maxBank + 1;
	400	+ int size = maxBandOff + scanlineStride*(h-1) + (w-1) + 1;
	401	+
	402	+ switch(dataType) {
	403	+ case DataBuffer.TYPE_BYTE:
	404	+ d = new DataBufferByte(size, banks);
	405	+ break;
	406	+
	407	+ case DataBuffer.TYPE_USHORT:
	408	+ d = new DataBufferUShort(size, banks);
	409	+ break;
	410	+
	411	+ case DataBuffer.TYPE_INT:
	412	+ d = new DataBufferInt(size, banks);
	413	+ break;
	414	+
	415	+ default:
	416	+ throw new IllegalArgumentException("Unsupported data type " +
	417	+ dataType);
	418	+ }
	419	+
	420	+ return createBandedRaster(d, w, h, scanlineStride,
	421	+ bankIndices, bandOffsets, location);
	422	+ }
	423	+
	424	+ /**
	425	+ * Creates a Raster based on a SinglePixelPackedSampleModel with
	426	+ * the specified data type, width, height, and band masks.
	427	+ * The number of bands is inferred from bandMasks.length.
	428	+ *
	429	+ * <p> The upper left corner of the Raster is given by the
	430	+ * location argument. If location is null, (0, 0) will be used.
	431	+ * The dataType parameter should be one of the enumerated values
	432	+ * defined in the DataBuffer class.
	433	+ *
	434	+ * <p> The only dataTypes supported currently are TYPE_BYTE, TYPE_USHORT,
	435	+ * and TYPE_INT.
	436	+ * @param dataType the data type for storing samples
	437	+ * @param w the width in pixels of the image data
	438	+ * @param h the height in pixels of the image data
	439	+ * @param bandMasks an array containing an entry for each band
	440	+ * @param location the upper-left corner of the <code>Raster</code>
	441	+ * @return a WritableRaster object with the specified data type,
	442	+ * width, height, and band masks.
	443	+ * @throws RasterFormatException if <code>w</code> or <code>h</code>
	444	+ * is less than or equal to zero, or computing either
	445	+ * <code>location.x + w</code> or
	446	+ * <code>location.y + h</code> results in integer
	447	+ * overflow
	448	+ * @throws IllegalArgumentException if <code>dataType</code> is not
	449	+ * one of the supported data types, which are
	450	+ * <code>DataBuffer.TYPE_BYTE</code>,
	451	+ * <code>DataBuffer.TYPE_USHORT</code>
	452	+ * or <code>DataBuffer.TYPE_INT</code>
	453	+ */
	454	+ public static WritableRaster createPackedRaster(int dataType,
	455	+ int w, int h,
	456	+ int bandMasks[],
	457	+ Point location) {
	458	+ DataBuffer d;
	459	+
	460	+ switch(dataType) {
	461	+ case DataBuffer.TYPE_BYTE:
	462	+ d = new DataBufferByte(w*h);
	463	+ break;
	464	+
	465	+ case DataBuffer.TYPE_USHORT:
	466	+ d = new DataBufferUShort(w*h);
	467	+ break;
	468	+
	469	+ case DataBuffer.TYPE_INT:
	470	+ d = new DataBufferInt(w*h);
	471	+ break;
	472	+
	473	+ default:
	474	+ throw new IllegalArgumentException("Unsupported data type " +
	475	+ dataType);
	476	+ }
	477	+
	478	+ return createPackedRaster(d, w, h, w, bandMasks, location);
	479	+ }
	480	+
	481	+ /**
	482	+ * Creates a Raster based on a packed SampleModel with the
	483	+ * specified data type, width, height, number of bands, and bits
	484	+ * per band. If the number of bands is one, the SampleModel will
	485	+ * be a MultiPixelPackedSampleModel.
	486	+ *
	487	+ * <p> If the number of bands is more than one, the SampleModel
	488	+ * will be a SinglePixelPackedSampleModel, with each band having
	489	+ * bitsPerBand bits. In either case, the requirements on dataType
	490	+ * and bitsPerBand imposed by the corresponding SampleModel must
	491	+ * be met.
	492	+ *
	493	+ * <p> The upper left corner of the Raster is given by the
	494	+ * location argument. If location is null, (0, 0) will be used.
	495	+ * The dataType parameter should be one of the enumerated values
	496	+ * defined in the DataBuffer class.
	497	+ *
	498	+ * <p> The only dataTypes supported currently are TYPE_BYTE, TYPE_USHORT,
	499	+ * and TYPE_INT.
	500	+ * @param dataType the data type for storing samples
	501	+ * @param w the width in pixels of the image data
	502	+ * @param h the height in pixels of the image data
	503	+ * @param bands the number of bands
	504	+ * @param bitsPerBand the number of bits per band
	505	+ * @param location the upper-left corner of the <code>Raster</code>
	506	+ * @return a WritableRaster object with the specified data type,
	507	+ * width, height, number of bands, and bits per band.
	508	+ * @throws RasterFormatException if <code>w</code> or <code>h</code>
	509	+ * is less than or equal to zero, or computing either
	510	+ * <code>location.x + w</code> or
	511	+ * <code>location.y + h</code> results in integer
	512	+ * overflow
	513	+ * @throws IllegalArgumentException if the product of
	514	+ * <code>bitsPerBand</code> and <code>bands</code> is
	515	+ * greater than the number of bits held by
	516	+ * <code>dataType</code>
	517	+ * @throws IllegalArgumentException if <code>bitsPerBand</code> or
	518	+ * <code>bands</code> is not greater than zero
	519	+ * @throws IllegalArgumentException if <code>dataType</code> is not
	520	+ * one of the supported data types, which are
	521	+ * <code>DataBuffer.TYPE_BYTE</code>,
	522	+ * <code>DataBuffer.TYPE_USHORT</code>
	523	+ * or <code>DataBuffer.TYPE_INT</code>
	524	+ */
	525	+ public static WritableRaster createPackedRaster(int dataType,
	526	+ int w, int h,
	527	+ int bands,
	528	+ int bitsPerBand,
	529	+ Point location) {
	530	+ DataBuffer d;
	531	+
	532	+ if (bands <= 0) {
	533	+ throw new IllegalArgumentException("Number of bands ("+bands+
	534	+ ") must be greater than 0");
	535	+ }
	536	+
	537	+ if (bitsPerBand <= 0) {
	538	+ throw new IllegalArgumentException("Bits per band ("+bitsPerBand+
	539	+ ") must be greater than 0");
	540	+ }
	541	+
	542	+ if (bands != 1) {
	543	+ int[] masks = new int[bands];
	544	+ int mask = (1 << bitsPerBand) - 1;
	545	+ int shift = (bands-1)*bitsPerBand;
	546	+
	547	+ /* Make sure the total mask size will fit in the data type */
	548	+ if (shift+bitsPerBand > DataBuffer.getDataTypeSize(dataType)) {
	549	+ throw new IllegalArgumentException("bitsPerBand("+
	550	+ bitsPerBand+") * bands is "+
	551	+ " greater than data type "+
	552	+ "size.");
	553	+ }
	554	+ switch(dataType) {
	555	+ case DataBuffer.TYPE_BYTE:
	556	+ case DataBuffer.TYPE_USHORT:
	557	+ case DataBuffer.TYPE_INT:
	558	+ break;
	559	+ default:
	560	+ throw new IllegalArgumentException("Unsupported data type " +
	561	+ dataType);
	562	+ }
	563	+
	564	+ for (int i = 0; i < bands; i++) {
	565	+ masks[i] = mask << shift;
	566	+ shift = shift - bitsPerBand;
	567	+ }
	568	+
	569	+ return createPackedRaster(dataType, w, h, masks, location);
	570	+ }
	571	+ else {
	572	+ double fw = w;
	573	+ switch(dataType) {
	574	+ case DataBuffer.TYPE_BYTE:
	575	+ d = new DataBufferByte((int)(Math.ceil(fw/(8/bitsPerBand)))*h);
	576	+ break;
	577	+
	578	+ case DataBuffer.TYPE_USHORT:
	579	+ d = new DataBufferUShort((int)(Math.ceil(fw/(16/bitsPerBand)))*h);
	580	+ break;
	581	+
	582	+ case DataBuffer.TYPE_INT:
	583	+ d = new DataBufferInt((int)(Math.ceil(fw/(32/bitsPerBand)))*h);
	584	+ break;
	585	+
	586	+ default:
	587	+ throw new IllegalArgumentException("Unsupported data type " +
	588	+ dataType);
	589	+ }
	590	+
	591	+ return createPackedRaster(d, w, h, bitsPerBand, location);
	592	+ }
	593	+ }
	594	+
	595	+ /**
	596	+ * Creates a Raster based on a PixelInterleavedSampleModel with the
	597	+ * specified DataBuffer, width, height, scanline stride, pixel
	598	+ * stride, and band offsets. The number of bands is inferred from
	599	+ * bandOffsets.length. The upper left corner of the Raster
	600	+ * is given by the location argument. If location is null, (0, 0)
	601	+ * will be used.
	602	+ * <p> Note that interleaved <code>DataBuffer.TYPE_INT</code>
	603	+ * Rasters are not supported. To create a 1-band Raster of type
	604	+ * <code>DataBuffer.TYPE_INT</code>, use
	605	+ * Raster.createPackedRaster().
	606	+ * @param dataBuffer the <code>DataBuffer</code> that contains the
	607	+ * image data
	608	+ * @param w the width in pixels of the image data
	609	+ * @param h the height in pixels of the image data
	610	+ * @param scanlineStride the line stride of the image data
	611	+ * @param pixelStride the pixel stride of the image data
	612	+ * @param bandOffsets the offsets of all bands
	613	+ * @param location the upper-left corner of the <code>Raster</code>
	614	+ * @return a WritableRaster object with the specified
	615	+ * <code>DataBuffer</code>, width, height, scanline stride,
	616	+ * pixel stride and band offsets.
	617	+ * @throws RasterFormatException if <code>w</code> or <code>h</code>
	618	+ * is less than or equal to zero, or computing either
	619	+ * <code>location.x + w</code> or
	620	+ * <code>location.y + h</code> results in integer
	621	+ * overflow
	622	+ * @throws IllegalArgumentException if <code>dataType</code> is not
	623	+ * one of the supported data types, which are
	624	+ * <code>DataBuffer.TYPE_BYTE</code>,
	625	+ * <code>DataBuffer.TYPE_USHORT</code>
	626	+ * @throws RasterFormatException if <code>dataBuffer</code> has more
	627	+ * than one bank.
	628	+ * @throws NullPointerException if <code>dataBuffer</code> is null
	629	+ */
	630	+ public static WritableRaster createInterleavedRaster(DataBuffer dataBuffer,
	631	+ int w, int h,
	632	+ int scanlineStride,
	633	+ int pixelStride,
	634	+ int bandOffsets[],
	635	+ Point location) {
	636	+ if (dataBuffer == null) {
	637	+ throw new NullPointerException("DataBuffer cannot be null");
	638	+ }
	639	+ if (location == null) {
	640	+ location = new Point(0, 0);
	641	+ }
	642	+ int dataType = dataBuffer.getDataType();
	643	+
	644	+ PixelInterleavedSampleModel csm =
	645	+ new PixelInterleavedSampleModel(dataType, w, h,
	646	+ pixelStride,
	647	+ scanlineStride,
	648	+ bandOffsets);
	649	+ switch(dataType) {
	650	+ case DataBuffer.TYPE_BYTE:
	651	+ return new ByteInterleavedRaster(csm, dataBuffer, location);
	652	+
	653	+ case DataBuffer.TYPE_USHORT:
	654	+ return new ShortInterleavedRaster(csm, dataBuffer, location);
	655	+
	656	+ default:
	657	+ throw new IllegalArgumentException("Unsupported data type " +
	658	+ dataType);
	659	+ }
	660	+ }
	661	+
	662	+ /**
	663	+ * Creates a Raster based on a BandedSampleModel with the
	664	+ * specified DataBuffer, width, height, scanline stride, bank
	665	+ * indices, and band offsets. The number of bands is inferred
	666	+ * from bankIndices.length and bandOffsets.length, which must be
	667	+ * the same. The upper left corner of the Raster is given by the
	668	+ * location argument. If location is null, (0, 0) will be used.
	669	+ * @param dataBuffer the <code>DataBuffer</code> that contains the
	670	+ * image data
	671	+ * @param w the width in pixels of the image data
	672	+ * @param h the height in pixels of the image data
	673	+ * @param scanlineStride the line stride of the image data
	674	+ * @param bankIndices the bank indices for each band
	675	+ * @param bandOffsets the offsets of all bands
	676	+ * @param location the upper-left corner of the <code>Raster</code>
	677	+ * @return a WritableRaster object with the specified
	678	+ * <code>DataBuffer</code>, width, height, scanline stride,
	679	+ * bank indices and band offsets.
	680	+ * @throws RasterFormatException if <code>w</code> or <code>h</code>
	681	+ * is less than or equal to zero, or computing either
	682	+ * <code>location.x + w</code> or
	683	+ * <code>location.y + h</code> results in integer
	684	+ * overflow
	685	+ * @throws IllegalArgumentException if <code>dataType</code> is not
	686	+ * one of the supported data types, which are
	687	+ * <code>DataBuffer.TYPE_BYTE</code>,
	688	+ * <code>DataBuffer.TYPE_USHORT</code>
	689	+ * or <code>DataBuffer.TYPE_INT</code>
	690	+ * @throws NullPointerException if <code>dataBuffer</code> is null
	691	+ */
	692	+ public static WritableRaster createBandedRaster(DataBuffer dataBuffer,
	693	+ int w, int h,
	694	+ int scanlineStride,
	695	+ int bankIndices[],
	696	+ int bandOffsets[],
	697	+ Point location) {
	698	+ if (dataBuffer == null) {
	699	+ throw new NullPointerException("DataBuffer cannot be null");
	700	+ }
	701	+ if (location == null) {
	702	+ location = new Point(0,0);
	703	+ }
	704	+ int dataType = dataBuffer.getDataType();
	705	+
	706	+ int bands = bankIndices.length;
	707	+ if (bandOffsets.length != bands) {
	708	+ throw new IllegalArgumentException(
	709	+ "bankIndices.length != bandOffsets.length");
	710	+ }
	711	+
	712	+ BandedSampleModel bsm =
	713	+ new BandedSampleModel(dataType, w, h,
	714	+ scanlineStride,
	715	+ bankIndices, bandOffsets);
	716	+
	717	+ switch(dataType) {
	718	+ case DataBuffer.TYPE_BYTE:
	719	+ return new ByteBandedRaster(bsm, dataBuffer, location);
	720	+
	721	+ case DataBuffer.TYPE_USHORT:
	722	+ return new ShortBandedRaster(bsm, dataBuffer, location);
	723	+
	724	+ case DataBuffer.TYPE_INT:
	725	+ return new SunWritableRaster(bsm, dataBuffer, location);
	726	+
	727	+ default:
	728	+ throw new IllegalArgumentException("Unsupported data type " +
	729	+ dataType);
	730	+ }
	731	+ }
	732	+
	733	+ /**
	734	+ * Creates a Raster based on a SinglePixelPackedSampleModel with
	735	+ * the specified DataBuffer, width, height, scanline stride, and
	736	+ * band masks. The number of bands is inferred from bandMasks.length.
	737	+ * The upper left corner of the Raster is given by
	738	+ * the location argument. If location is null, (0, 0) will be used.
	739	+ * @param dataBuffer the <code>DataBuffer</code> that contains the
	740	+ * image data
	741	+ * @param w the width in pixels of the image data
	742	+ * @param h the height in pixels of the image data
	743	+ * @param scanlineStride the line stride of the image data
	744	+ * @param bandMasks an array containing an entry for each band
	745	+ * @param location the upper-left corner of the <code>Raster</code>
	746	+ * @return a WritableRaster object with the specified
	747	+ * <code>DataBuffer</code>, width, height, scanline stride,
	748	+ * and band masks.
	749	+ * @throws RasterFormatException if <code>w</code> or <code>h</code>
	750	+ * is less than or equal to zero, or computing either
	751	+ * <code>location.x + w</code> or
	752	+ * <code>location.y + h</code> results in integer
	753	+ * overflow
	754	+ * @throws IllegalArgumentException if <code>dataType</code> is not
	755	+ * one of the supported data types, which are
	756	+ * <code>DataBuffer.TYPE_BYTE</code>,
	757	+ * <code>DataBuffer.TYPE_USHORT</code>
	758	+ * or <code>DataBuffer.TYPE_INT</code>
	759	+ * @throws RasterFormatException if <code>dataBuffer</code> has more
	760	+ * than one bank.
	761	+ * @throws NullPointerException if <code>dataBuffer</code> is null
	762	+ */
	763	+ public static WritableRaster createPackedRaster(DataBuffer dataBuffer,
	764	+ int w, int h,
	765	+ int scanlineStride,
	766	+ int bandMasks[],
	767	+ Point location) {
	768	+ if (dataBuffer == null) {
	769	+ throw new NullPointerException("DataBuffer cannot be null");
	770	+ }
	771	+ if (location == null) {
	772	+ location = new Point(0,0);
	773	+ }
	774	+ int dataType = dataBuffer.getDataType();
	775	+
	776	+ SinglePixelPackedSampleModel sppsm =
	777	+ new SinglePixelPackedSampleModel(dataType, w, h, scanlineStride,
	778	+ bandMasks);
	779	+
	780	+ switch(dataType) {
	781	+ case DataBuffer.TYPE_BYTE:
	782	+ return new ByteInterleavedRaster(sppsm, dataBuffer, location);
	783	+
	784	+ case DataBuffer.TYPE_USHORT:
	785	+ return new ShortInterleavedRaster(sppsm, dataBuffer, location);
	786	+
	787	+ case DataBuffer.TYPE_INT:
	788	+ return new IntegerInterleavedRaster(sppsm, dataBuffer, location);
	789	+
	790	+ default:
	791	+ throw new IllegalArgumentException("Unsupported data type " +
	792	+ dataType);
	793	+ }
	794	+ }
	795	+
	796	+ /**
	797	+ * Creates a Raster based on a MultiPixelPackedSampleModel with the
	798	+ * specified DataBuffer, width, height, and bits per pixel. The upper
	799	+ * left corner of the Raster is given by the location argument. If
	800	+ * location is null, (0, 0) will be used.
	801	+ * @param dataBuffer the <code>DataBuffer</code> that contains the
	802	+ * image data
	803	+ * @param w the width in pixels of the image data
	804	+ * @param h the height in pixels of the image data
	805	+ * @param bitsPerPixel the number of bits for each pixel
	806	+ * @param location the upper-left corner of the <code>Raster</code>
	807	+ * @return a WritableRaster object with the specified
	808	+ * <code>DataBuffer</code>, width, height, and
	809	+ * bits per pixel.
	810	+ * @throws RasterFormatException if <code>w</code> or <code>h</code>
	811	+ * is less than or equal to zero, or computing either
	812	+ * <code>location.x + w</code> or
	813	+ * <code>location.y + h</code> results in integer
	814	+ * overflow
	815	+ * @throws IllegalArgumentException if <code>dataType</code> is not
	816	+ * one of the supported data types, which are
	817	+ * <code>DataBuffer.TYPE_BYTE</code>,
	818	+ * <code>DataBuffer.TYPE_USHORT</code>
	819	+ * or <code>DataBuffer.TYPE_INT</code>
	820	+ * @throws RasterFormatException if <code>dataBuffer</code> has more
	821	+ * than one bank.
	822	+ * @throws NullPointerException if <code>dataBuffer</code> is null
	823	+ */
	824	+ public static WritableRaster createPackedRaster(DataBuffer dataBuffer,
	825	+ int w, int h,
	826	+ int bitsPerPixel,
	827	+ Point location) {
	828	+ if (dataBuffer == null) {
	829	+ throw new NullPointerException("DataBuffer cannot be null");
	830	+ }
	831	+ if (location == null) {
	832	+ location = new Point(0,0);
	833	+ }
	834	+ int dataType = dataBuffer.getDataType();
	835	+
	836	+ if (dataType != DataBuffer.TYPE_BYTE &&
	837	+ dataType != DataBuffer.TYPE_USHORT &&
	838	+ dataType != DataBuffer.TYPE_INT) {
	839	+ throw new IllegalArgumentException("Unsupported data type " +
	840	+ dataType);
	841	+ }
	842	+
	843	+ if (dataBuffer.getNumBanks() != 1) {
	844	+ throw new
	845	+ RasterFormatException("DataBuffer for packed Rasters"+
	846	+ " must only have 1 bank.");
	847	+ }
	848	+
	849	+ MultiPixelPackedSampleModel mppsm =
	850	+ new MultiPixelPackedSampleModel(dataType, w, h, bitsPerPixel);
	851	+
	852	+ if (dataType == DataBuffer.TYPE_BYTE &&
	853	+ (bitsPerPixel == 1 \|\| bitsPerPixel == 2 \|\| bitsPerPixel == 4)) {
	854	+ return new BytePackedRaster(mppsm, dataBuffer, location);
	855	+ } else {
	856	+ return new SunWritableRaster(mppsm, dataBuffer, location);
	857	+ }
	858	+ }
	859	+
	860	+
	861	+ /**
	862	+ * Creates a Raster with the specified SampleModel and DataBuffer.
	863	+ * The upper left corner of the Raster is given by the location argument.
	864	+ * If location is null, (0, 0) will be used.
	865	+ * @param sm the specified <code>SampleModel</code>
	866	+ * @param db the specified <code>DataBuffer</code>
	867	+ * @param location the upper-left corner of the <code>Raster</code>
	868	+ * @return a <code>Raster</code> with the specified
	869	+ * <code>SampleModel</code>, <code>DataBuffer</code>, and
	870	+ * location.
	871	+ * @throws RasterFormatException if computing either
	872	+ * <code>location.x + sm.getWidth()</code> or
	873	+ * <code>location.y + sm.getHeight()</code> results in integer
	874	+ * overflow
	875	+ * @throws RasterFormatException if <code>db</code> has more
	876	+ * than one bank and <code>sm</code> is a
	877	+ * PixelInterleavedSampleModel, SinglePixelPackedSampleModel,
	878	+ * or MultiPixelPackedSampleModel.
	879	+ * @throws NullPointerException if either SampleModel or DataBuffer is
	880	+ * null
	881	+ */
	882	+ public static Raster createRaster(SampleModel sm,
	883	+ DataBuffer db,
	884	+ Point location) {
	885	+ if ((sm == null) \|\| (db == null)) {
	886	+ throw new NullPointerException("SampleModel and DataBuffer cannot be null");
	887	+ }
	888	+
	889	+ if (location == null) {
	890	+ location = new Point(0,0);
	891	+ }
	892	+ int dataType = sm.getDataType();
	893	+
	894	+ if (sm instanceof PixelInterleavedSampleModel) {
	895	+ switch(dataType) {
	896	+ case DataBuffer.TYPE_BYTE:
	897	+ return new ByteInterleavedRaster(sm, db, location);
	898	+
	899	+ case DataBuffer.TYPE_USHORT:
	900	+ return new ShortInterleavedRaster(sm, db, location);
	901	+ }
	902	+ } else if (sm instanceof SinglePixelPackedSampleModel) {
	903	+ switch(dataType) {
	904	+ case DataBuffer.TYPE_BYTE:
	905	+ return new ByteInterleavedRaster(sm, db, location);
	906	+
	907	+ case DataBuffer.TYPE_USHORT:
	908	+ return new ShortInterleavedRaster(sm, db, location);
	909	+
	910	+ case DataBuffer.TYPE_INT:
	911	+ return new IntegerInterleavedRaster(sm, db, location);
	912	+ }
	913	+ } else if (sm instanceof MultiPixelPackedSampleModel &&
	914	+ dataType == DataBuffer.TYPE_BYTE &&
	915	+ sm.getSampleSize(0) < 8) {
	916	+ return new BytePackedRaster(sm, db, location);
	917	+ }
	918	+
	919	+ // we couldn't do anything special - do the generic thing
	920	+
	921	+ return new Raster(sm,db,location);
	922	+ }
	923	+
	924	+ /**
	925	+ * Creates a WritableRaster with the specified SampleModel.
	926	+ * The upper left corner of the Raster is given by the location argument.
	927	+ * If location is null, (0, 0) will be used.
	928	+ * @param sm the specified <code>SampleModel</code>
	929	+ * @param location the upper-left corner of the
	930	+ * <code>WritableRaster</code>
	931	+ * @return a <code>WritableRaster</code> with the specified
	932	+ * <code>SampleModel</code> and location.
	933	+ * @throws RasterFormatException if computing either
	934	+ * <code>location.x + sm.getWidth()</code> or
	935	+ * <code>location.y + sm.getHeight()</code> results in integer
	936	+ * overflow
	937	+ */
	938	+ public static WritableRaster createWritableRaster(SampleModel sm,
	939	+ Point location) {
	940	+ if (location == null) {
	941	+ location = new Point(0,0);
	942	+ }
	943	+
	944	+ return createWritableRaster(sm, sm.createDataBuffer(), location);
	945	+ }
	946	+
	947	+ /**
	948	+ * Creates a WritableRaster with the specified SampleModel and DataBuffer.
	949	+ * The upper left corner of the Raster is given by the location argument.
	950	+ * If location is null, (0, 0) will be used.
	951	+ * @param sm the specified <code>SampleModel</code>
	952	+ * @param db the specified <code>DataBuffer</code>
	953	+ * @param location the upper-left corner of the
	954	+ * <code>WritableRaster</code>
	955	+ * @return a <code>WritableRaster</code> with the specified
	956	+ * <code>SampleModel</code>, <code>DataBuffer</code>, and
	957	+ * location.
	958	+ * @throws RasterFormatException if computing either
	959	+ * <code>location.x + sm.getWidth()</code> or
	960	+ * <code>location.y + sm.getHeight()</code> results in integer
	961	+ * overflow
	962	+ * @throws RasterFormatException if <code>db</code> has more
	963	+ * than one bank and <code>sm</code> is a
	964	+ * PixelInterleavedSampleModel, SinglePixelPackedSampleModel,
	965	+ * or MultiPixelPackedSampleModel.
	966	+ * @throws NullPointerException if either SampleModel or DataBuffer is null
	967	+ */
	968	+ public static WritableRaster createWritableRaster(SampleModel sm,
	969	+ DataBuffer db,
	970	+ Point location) {
	971	+ if ((sm == null) \|\| (db == null)) {
	972	+ throw new NullPointerException("SampleModel and DataBuffer cannot be null");
	973	+ }
	974	+ if (location == null) {
	975	+ location = new Point(0,0);
	976	+ }
	977	+
	978	+ int dataType = sm.getDataType();
	979	+
	980	+ if (sm instanceof PixelInterleavedSampleModel) {
	981	+ switch(dataType) {
	982	+ case DataBuffer.TYPE_BYTE:
	983	+ return new ByteInterleavedRaster(sm, db, location);
	984	+
	985	+ case DataBuffer.TYPE_USHORT:
	986	+ return new ShortInterleavedRaster(sm, db, location);
	987	+ }
	988	+ } else if (sm instanceof SinglePixelPackedSampleModel) {
	989	+ switch(dataType) {
	990	+ case DataBuffer.TYPE_BYTE:
	991	+ return new ByteInterleavedRaster(sm, db, location);
	992	+
	993	+ case DataBuffer.TYPE_USHORT:
	994	+ return new ShortInterleavedRaster(sm, db, location);
	995	+
	996	+ case DataBuffer.TYPE_INT:
	997	+ return new IntegerInterleavedRaster(sm, db, location);
	998	+ }
	999	+ } else if (sm instanceof MultiPixelPackedSampleModel &&
	1000	+ dataType == DataBuffer.TYPE_BYTE &&
	1001	+ sm.getSampleSize(0) < 8) {
	1002	+ return new BytePackedRaster(sm, db, location);
	1003	+ }
	1004	+
	1005	+ // we couldn't do anything special - do the generic thing
	1006	+
	1007	+ return new SunWritableRaster(sm,db,location);
	1008	+ }
	1009	+
	1010	+ /**
	1011	+ * Constructs a Raster with the given SampleModel. The Raster's
	1012	+ * upper left corner is origin and it is the same size as the
	1013	+ * SampleModel. A DataBuffer large enough to describe the
	1014	+ * Raster is automatically created.
	1015	+ * @param sampleModel The SampleModel that specifies the layout
	1016	+ * @param origin The Point that specified the origin
	1017	+ * @throws RasterFormatException if computing either
	1018	+ * <code>origin.x + sampleModel.getWidth()</code> or
	1019	+ * <code>origin.y + sampleModel.getHeight()</code> results in
	1020	+ * integer overflow
	1021	+ * @throws NullPointerException either <code>sampleModel</code> or
	1022	+ * <code>origin</code> is null
	1023	+ */
	1024	+ protected Raster(SampleModel sampleModel,
	1025	+ Point origin) {
	1026	+ this(sampleModel,
	1027	+ sampleModel.createDataBuffer(),
	1028	+ new Rectangle(origin.x,
	1029	+ origin.y,
	1030	+ sampleModel.getWidth(),
	1031	+ sampleModel.getHeight()),
	1032	+ origin,
	1033	+ null);
	1034	+ }
	1035	+
	1036	+ /**
	1037	+ * Constructs a Raster with the given SampleModel and DataBuffer.
	1038	+ * The Raster's upper left corner is origin and it is the same size
	1039	+ * as the SampleModel. The DataBuffer is not initialized and must
	1040	+ * be compatible with SampleModel.
	1041	+ * @param sampleModel The SampleModel that specifies the layout
	1042	+ * @param dataBuffer The DataBuffer that contains the image data
	1043	+ * @param origin The Point that specifies the origin
	1044	+ * @throws RasterFormatException if computing either
	1045	+ * <code>origin.x + sampleModel.getWidth()</code> or
	1046	+ * <code>origin.y + sampleModel.getHeight()</code> results in
	1047	+ * integer overflow
	1048	+ * @throws NullPointerException either <code>sampleModel</code> or
	1049	+ * <code>origin</code> is null
	1050	+ */
	1051	+ protected Raster(SampleModel sampleModel,
	1052	+ DataBuffer dataBuffer,
	1053	+ Point origin) {
	1054	+ this(sampleModel,
	1055	+ dataBuffer,
	1056	+ new Rectangle(origin.x,
	1057	+ origin.y,
	1058	+ sampleModel.getWidth(),
	1059	+ sampleModel.getHeight()),
	1060	+ origin,
	1061	+ null);
	1062	+ }
	1063	+
	1064	+ /**
	1065	+ * Constructs a Raster with the given SampleModel, DataBuffer, and
	1066	+ * parent. aRegion specifies the bounding rectangle of the new
	1067	+ * Raster. When translated into the base Raster's coordinate
	1068	+ * system, aRegion must be contained by the base Raster.
	1069	+ * (The base Raster is the Raster's ancestor which has no parent.)
	1070	+ * sampleModelTranslate specifies the sampleModelTranslateX and
	1071	+ * sampleModelTranslateY values of the new Raster.
	1072	+ *
	1073	+ * Note that this constructor should generally be called by other
	1074	+ * constructors or create methods, it should not be used directly.
	1075	+ * @param sampleModel The SampleModel that specifies the layout
	1076	+ * @param dataBuffer The DataBuffer that contains the image data
	1077	+ * @param aRegion The Rectangle that specifies the image area
	1078	+ * @param sampleModelTranslate The Point that specifies the translation
	1079	+ * from SampleModel to Raster coordinates
	1080	+ * @param parent The parent (if any) of this raster
	1081	+ * @throws NullPointerException if any of <code>sampleModel</code>,
	1082	+ * <code>dataBuffer</code>, <code>aRegion</code> or
	1083	+ * <code>sampleModelTranslate</code> is null
	1084	+ * @throws RasterFormatException if <code>aRegion</code> has width
	1085	+ * or height less than or equal to zero, or computing either
	1086	+ * <code>aRegion.x + aRegion.width</code> or
	1087	+ * <code>aRegion.y + aRegion.height</code> results in integer
	1088	+ * overflow
	1089	+ */
	1090	+ protected Raster(SampleModel sampleModel,
	1091	+ DataBuffer dataBuffer,
	1092	+ Rectangle aRegion,
	1093	+ Point sampleModelTranslate,
	1094	+ Raster parent) {
	1095	+
	1096	+ if ((sampleModel == null) \|\| (dataBuffer == null) \|\|
	1097	+ (aRegion == null) \|\| (sampleModelTranslate == null)) {
	1098	+ throw new NullPointerException("SampleModel, dataBuffer, aRegion and " +
	1099	+ "sampleModelTranslate cannot be null");
	1100	+ }
	1101	+ this.sampleModel = sampleModel;
	1102	+ this.dataBuffer = dataBuffer;
	1103	+ minX = aRegion.x;
	1104	+ minY = aRegion.y;
	1105	+ width = aRegion.width;
	1106	+ height = aRegion.height;
	1107	+ if (width <= 0 \|\| height <= 0) {
	1108	+ throw new RasterFormatException("negative or zero " +
	1109	+ ((width <= 0) ? "width" : "height"));
	1110	+ }
	1111	+ if ((minX + width) < minX) {
	1112	+ throw new RasterFormatException(
	1113	+ "overflow condition for X coordinates of Raster");
	1114	+ }
	1115	+ if ((minY + height) < minY) {
	1116	+ throw new RasterFormatException(
	1117	+ "overflow condition for Y coordinates of Raster");
	1118	+ }
	1119	+
	1120	+ sampleModelTranslateX = sampleModelTranslate.x;
	1121	+ sampleModelTranslateY = sampleModelTranslate.y;
	1122	+
	1123	+ numBands = sampleModel.getNumBands();
	1124	+ numDataElements = sampleModel.getNumDataElements();
	1125	+ this.parent = parent;
	1126	+ }
	1127	+
	1128	+
	1129	+ /**
	1130	+ * Returns the parent Raster (if any) of this Raster or null.
	1131	+ * @return the parent Raster or <code>null</code>.
	1132	+ */
	1133	+ public Raster getParent() {
	1134	+ return parent;
	1135	+ }
	1136	+
	1137	+ /**
	1138	+ * Returns the X translation from the coordinate system of the
	1139	+ * SampleModel to that of the Raster. To convert a pixel's X
	1140	+ * coordinate from the Raster coordinate system to the SampleModel
	1141	+ * coordinate system, this value must be subtracted.
	1142	+ * @return the X translation from the coordinate space of the
	1143	+ * Raster's SampleModel to that of the Raster.
	1144	+ */
	1145	+ final public int getSampleModelTranslateX() {
	1146	+ return sampleModelTranslateX;
	1147	+ }
	1148	+
	1149	+ /**
	1150	+ * Returns the Y translation from the coordinate system of the
	1151	+ * SampleModel to that of the Raster. To convert a pixel's Y
	1152	+ * coordinate from the Raster coordinate system to the SampleModel
	1153	+ * coordinate system, this value must be subtracted.
	1154	+ * @return the Y translation from the coordinate space of the
	1155	+ * Raster's SampleModel to that of the Raster.
	1156	+ */
	1157	+ final public int getSampleModelTranslateY() {
	1158	+ return sampleModelTranslateY;
	1159	+ }
	1160	+
	1161	+ /**
	1162	+ * Create a compatible WritableRaster the same size as this Raster with
	1163	+ * the same SampleModel and a new initialized DataBuffer.
	1164	+ * @return a compatible <code>WritableRaster</code> with the same sample
	1165	+ * model and a new data buffer.
	1166	+ */
	1167	+ public WritableRaster createCompatibleWritableRaster() {
	1168	+ return new SunWritableRaster(sampleModel, new Point(0,0));
	1169	+ }
	1170	+
	1171	+ /**
	1172	+ * Create a compatible WritableRaster with the specified size, a new
	1173	+ * SampleModel, and a new initialized DataBuffer.
	1174	+ * @param w the specified width of the new <code>WritableRaster</code>
	1175	+ * @param h the specified height of the new <code>WritableRaster</code>
	1176	+ * @return a compatible <code>WritableRaster</code> with the specified
	1177	+ * size and a new sample model and data buffer.
	1178	+ * @exception RasterFormatException if the width or height is less than
	1179	+ * or equal to zero.
	1180	+ */
	1181	+ public WritableRaster createCompatibleWritableRaster(int w, int h) {
	1182	+ if (w <= 0 \|\| h <=0) {
	1183	+ throw new RasterFormatException("negative " +
	1184	+ ((w <= 0) ? "width" : "height"));
	1185	+ }
	1186	+
	1187	+ SampleModel sm = sampleModel.createCompatibleSampleModel(w,h);
	1188	+
	1189	+ return new SunWritableRaster(sm, new Point(0,0));
	1190	+ }
	1191	+
	1192	+ /**
	1193	+ * Create a compatible WritableRaster with location (minX, minY)
	1194	+ * and size (width, height) specified by rect, a
	1195	+ * new SampleModel, and a new initialized DataBuffer.
	1196	+ * @param rect a <code>Rectangle</code> that specifies the size and
	1197	+ * location of the <code>WritableRaster</code>
	1198	+ * @return a compatible <code>WritableRaster</code> with the specified
	1199	+ * size and location and a new sample model and data buffer.
	1200	+ * @throws RasterFormatException if <code>rect</code> has width
	1201	+ * or height less than or equal to zero, or computing either
	1202	+ * <code>rect.x + rect.width</code> or
	1203	+ * <code>rect.y + rect.height</code> results in integer
	1204	+ * overflow
	1205	+ * @throws NullPointerException if <code>rect</code> is null
	1206	+ */
	1207	+ public WritableRaster createCompatibleWritableRaster(Rectangle rect) {
	1208	+ if (rect == null) {
	1209	+ throw new NullPointerException("Rect cannot be null");
	1210	+ }
	1211	+ return createCompatibleWritableRaster(rect.x, rect.y,
	1212	+ rect.width, rect.height);
	1213	+ }
	1214	+
	1215	+ /**
	1216	+ * Create a compatible WritableRaster with the specified
	1217	+ * location (minX, minY) and size (width, height), a
	1218	+ * new SampleModel, and a new initialized DataBuffer.
	1219	+ * @param x the X coordinate of the upper-left corner of
	1220	+ * the <code>WritableRaster</code>
	1221	+ * @param y the Y coordinate of the upper-left corner of
	1222	+ * the <code>WritableRaster</code>
	1223	+ * @param w the specified width of the <code>WritableRaster</code>
	1224	+ * @param h the specified height of the <code>WritableRaster</code>
	1225	+ * @return a compatible <code>WritableRaster</code> with the specified
	1226	+ * size and location and a new sample model and data buffer.
	1227	+ * @throws RasterFormatException if <code>w</code> or <code>h</code>
	1228	+ * is less than or equal to zero, or computing either
	1229	+ * <code>x + w</code> or
	1230	+ * <code>y + h</code> results in integer
	1231	+ * overflow
	1232	+ */
	1233	+ public WritableRaster createCompatibleWritableRaster(int x, int y,
	1234	+ int w, int h) {
	1235	+ WritableRaster ret = createCompatibleWritableRaster(w, h);
	1236	+ return ret.createWritableChild(0,0,w,h,x,y,null);
	1237	+ }
	1238	+
	1239	+ /**
	1240	+ * Create a Raster with the same size, SampleModel and DataBuffer
	1241	+ * as this one, but with a different location. The new Raster
	1242	+ * will possess a reference to the current Raster, accessible
	1243	+ * through its getParent() method.
	1244	+ *
	1245	+ * @param childMinX the X coordinate of the upper-left
	1246	+ * corner of the new <code>Raster</code>
	1247	+ * @param childMinY the Y coordinate of the upper-left
	1248	+ * corner of the new <code>Raster</code>
	1249	+ * @return a new <code>Raster</code> with the same size, SampleModel,
	1250	+ * and DataBuffer as this <code>Raster</code>, but with the
	1251	+ * specified location.
	1252	+ * @throws RasterFormatException if computing either
	1253	+ * <code>childMinX + this.getWidth()</code> or
	1254	+ * <code>childMinY + this.getHeight()</code> results in integer
	1255	+ * overflow
	1256	+ */
	1257	+ public Raster createTranslatedChild(int childMinX, int childMinY) {
	1258	+ return createChild(minX,minY,width,height,
	1259	+ childMinX,childMinY,null);
	1260	+ }
	1261	+
	1262	+ /**
	1263	+ * Returns a new Raster which shares all or part of this Raster's
	1264	+ * DataBuffer. The new Raster will possess a reference to the
	1265	+ * current Raster, accessible through its getParent() method.
	1266	+ *
	1267	+ * <p> The parentX, parentY, width and height parameters
	1268	+ * form a Rectangle in this Raster's coordinate space,
	1269	+ * indicating the area of pixels to be shared. An error will
	1270	+ * be thrown if this Rectangle is not contained with the bounds
	1271	+ * of the current Raster.
	1272	+ *
	1273	+ * <p> The new Raster may additionally be translated to a
	1274	+ * different coordinate system for the plane than that used by the current
	1275	+ * Raster. The childMinX and childMinY parameters give the new
	1276	+ * (x, y) coordinate of the upper-left pixel of the returned
	1277	+ * Raster; the coordinate (childMinX, childMinY) in the new Raster
	1278	+ * will map to the same pixel as the coordinate (parentX, parentY)
	1279	+ * in the current Raster.
	1280	+ *
	1281	+ * <p> The new Raster may be defined to contain only a subset of
	1282	+ * the bands of the current Raster, possibly reordered, by means
	1283	+ * of the bandList parameter. If bandList is null, it is taken to
	1284	+ * include all of the bands of the current Raster in their current
	1285	+ * order.
	1286	+ *
	1287	+ * <p> To create a new Raster that contains a subregion of the current
	1288	+ * Raster, but shares its coordinate system and bands,
	1289	+ * this method should be called with childMinX equal to parentX,
	1290	+ * childMinY equal to parentY, and bandList equal to null.
	1291	+ *
	1292	+ * @param parentX The X coordinate of the upper-left corner
	1293	+ * in this Raster's coordinates
	1294	+ * @param parentY The Y coordinate of the upper-left corner
	1295	+ * in this Raster's coordinates
	1296	+ * @param width Width of the region starting at (parentX, parentY)
	1297	+ * @param height Height of the region starting at (parentX, parentY).
	1298	+ * @param childMinX The X coordinate of the upper-left corner
	1299	+ * of the returned Raster
	1300	+ * @param childMinY The Y coordinate of the upper-left corner
	1301	+ * of the returned Raster
	1302	+ * @param bandList Array of band indices, or null to use all bands
	1303	+ * @return a new <code>Raster</code>.
	1304	+ * @exception RasterFormatException if the specified subregion is outside
	1305	+ * of the raster bounds.
	1306	+ * @throws RasterFormatException if <code>width</code> or
	1307	+ * <code>height</code>
	1308	+ * is less than or equal to zero, or computing any of
	1309	+ * <code>parentX + width</code>, <code>parentY + height</code>,
	1310	+ * <code>childMinX + width</code>, or
	1311	+ * <code>childMinY + height</code> results in integer
	1312	+ * overflow
	1313	+ */
	1314	+ public Raster createChild(int parentX, int parentY,
	1315	+ int width, int height,
	1316	+ int childMinX, int childMinY,
	1317	+ int bandList[]) {
	1318	+ if (parentX < this.minX) {
	1319	+ throw new RasterFormatException("parentX lies outside raster");
	1320	+ }
	1321	+ if (parentY < this.minY) {
	1322	+ throw new RasterFormatException("parentY lies outside raster");
	1323	+ }
	1324	+ if ((parentX + width < parentX) \|\|
	1325	+ (parentX + width > this.width + this.minX)) {
	1326	+ throw new RasterFormatException("(parentX + width) is outside raster");
	1327	+ }
	1328	+ if ((parentY + height < parentY) \|\|
	1329	+ (parentY + height > this.height + this.minY)) {
	1330	+ throw new RasterFormatException("(parentY + height) is outside raster");
	1331	+ }
	1332	+
	1333	+ SampleModel subSampleModel;
	1334	+ // Note: the SampleModel for the child Raster should have the same
	1335	+ // width and height as that for the parent, since it represents
	1336	+ // the physical layout of the pixel data. The child Raster's width
	1337	+ // and height represent a "virtual" view of the pixel data, so
	1338	+ // they may be different than those of the SampleModel.
	1339	+ if (bandList == null) {
	1340	+ subSampleModel = sampleModel;
	1341	+ } else {
	1342	+ subSampleModel = sampleModel.createSubsetSampleModel(bandList);
	1343	+ }
	1344	+
	1345	+ int deltaX = childMinX - parentX;
	1346	+ int deltaY = childMinY - parentY;
	1347	+
	1348	+ return new Raster(subSampleModel, getDataBuffer(),
	1349	+ new Rectangle(childMinX, childMinY, width, height),
	1350	+ new Point(sampleModelTranslateX + deltaX,
	1351	+ sampleModelTranslateY + deltaY), this);
	1352	+ }
	1353	+
	1354	+ /**
	1355	+ * Returns the bounding Rectangle of this Raster. This function returns
	1356	+ * the same information as getMinX/MinY/Width/Height.
	1357	+ * @return the bounding box of this <code>Raster</code>.
	1358	+ */
	1359	+ public Rectangle getBounds() {
	1360	+ return new Rectangle(minX, minY, width, height);
	1361	+ }
	1362	+
	1363	+ /** Returns the minimum valid X coordinate of the Raster.
	1364	+ * @return the minimum x coordinate of this <code>Raster</code>.
	1365	+ */
	1366	+ final public int getMinX() {
	1367	+ return minX;
	1368	+ }
	1369	+
	1370	+ /** Returns the minimum valid Y coordinate of the Raster.
	1371	+ * @return the minimum y coordinate of this <code>Raster</code>.
	1372	+ */
	1373	+ final public int getMinY() {
	1374	+ return minY;
	1375	+ }
	1376	+
	1377	+ /** Returns the width in pixels of the Raster.
	1378	+ * @return the width of this <code>Raster</code>.
	1379	+ */
	1380	+ final public int getWidth() {
	1381	+ return width;
	1382	+ }
	1383	+
	1384	+ /** Returns the height in pixels of the Raster.
	1385	+ * @return the height of this <code>Raster</code>.
	1386	+ */
	1387	+ final public int getHeight() {
	1388	+ return height;
	1389	+ }
	1390	+
	1391	+ /** Returns the number of bands (samples per pixel) in this Raster.
	1392	+ * @return the number of bands of this <code>Raster</code>.
	1393	+ */
	1394	+ final public int getNumBands() {
	1395	+ return numBands;
	1396	+ }
	1397	+
	1398	+ /**
	1399	+ * Returns the number of data elements needed to transfer one pixel
	1400	+ * via the getDataElements and setDataElements methods. When pixels
	1401	+ * are transferred via these methods, they may be transferred in a
	1402	+ * packed or unpacked format, depending on the implementation of the
	1403	+ * underlying SampleModel. Using these methods, pixels are transferred
	1404	+ * as an array of getNumDataElements() elements of a primitive type given
	1405	+ * by getTransferType(). The TransferType may or may not be the same
	1406	+ * as the storage data type of the DataBuffer.
	1407	+ * @return the number of data elements.
	1408	+ */
	1409	+ final public int getNumDataElements() {
	1410	+ return sampleModel.getNumDataElements();
	1411	+ }
	1412	+
	1413	+ /**
	1414	+ * Returns the TransferType used to transfer pixels via the
	1415	+ * getDataElements and setDataElements methods. When pixels
	1416	+ * are transferred via these methods, they may be transferred in a
	1417	+ * packed or unpacked format, depending on the implementation of the
	1418	+ * underlying SampleModel. Using these methods, pixels are transferred
	1419	+ * as an array of getNumDataElements() elements of a primitive type given
	1420	+ * by getTransferType(). The TransferType may or may not be the same
	1421	+ * as the storage data type of the DataBuffer. The TransferType will
	1422	+ * be one of the types defined in DataBuffer.
	1423	+ * @return this transfer type.
	1424	+ */
	1425	+ final public int getTransferType() {
	1426	+ return sampleModel.getTransferType();
	1427	+ }
	1428	+
	1429	+ /** Returns the DataBuffer associated with this Raster.
	1430	+ * @return the <code>DataBuffer</code> of this <code>Raster</code>.
	1431	+ */
	1432	+ public DataBuffer getDataBuffer() {
	1433	+ return dataBuffer;
	1434	+ }
	1435	+
	1436	+ /** Returns the SampleModel that describes the layout of the image data.
	1437	+ * @return the <code>SampleModel</code> of this <code>Raster</code>.
	1438	+ */
	1439	+ public SampleModel getSampleModel() {
	1440	+ return sampleModel;
	1441	+ }
	1442	+
	1443	+ /**
	1444	+ * Returns data for a single pixel in a primitive array of type
	1445	+ * TransferType. For image data supported by the Java 2D(tm) API,
	1446	+ * this will be one of DataBuffer.TYPE_BYTE, DataBuffer.TYPE_USHORT,
	1447	+ * DataBuffer.TYPE_INT, DataBuffer.TYPE_SHORT, DataBuffer.TYPE_FLOAT,
	1448	+ * or DataBuffer.TYPE_DOUBLE. Data may be returned in a packed format,
	1449	+ * thus increasing efficiency for data transfers.
	1450	+ * An ArrayIndexOutOfBoundsException may be thrown
	1451	+ * if the coordinates are not in bounds. However, explicit bounds
	1452	+ * checking is not guaranteed.
	1453	+ * A ClassCastException will be thrown if the input object is non null
	1454	+ * and references anything other than an array of TransferType.
	1455	+ * @see java.awt.image.SampleModel#getDataElements(int, int, Object, DataBuffer)
	1456	+ * @param x The X coordinate of the pixel location
	1457	+ * @param y The Y coordinate of the pixel location
	1458	+ * @param outData An object reference to an array of type defined by
	1459	+ * getTransferType() and length getNumDataElements().
	1460	+ * If null, an array of appropriate type and size will be
	1461	+ * allocated
	1462	+ * @return An object reference to an array of type defined by
	1463	+ * getTransferType() with the requested pixel data.
	1464	+ *
	1465	+ * @throws ArrayIndexOutOfBoundsException if the coordinates are not
	1466	+ * in bounds, or if outData is too small to hold the output.
	1467	+ */
	1468	+ public Object getDataElements(int x, int y, Object outData) {
	1469	+ return sampleModel.getDataElements(x - sampleModelTranslateX,
	1470	+ y - sampleModelTranslateY,
	1471	+ outData, dataBuffer);
	1472	+ }
	1473	+
	1474	+ /**
	1475	+ * Returns the pixel data for the specified rectangle of pixels in a
	1476	+ * primitive array of type TransferType.
	1477	+ * For image data supported by the Java 2D API, this
	1478	+ * will be one of DataBuffer.TYPE_BYTE, DataBuffer.TYPE_USHORT,
	1479	+ * DataBuffer.TYPE_INT, DataBuffer.TYPE_SHORT, DataBuffer.TYPE_FLOAT,
	1480	+ * or DataBuffer.TYPE_DOUBLE. Data may be returned in a packed format,
	1481	+ * thus increasing efficiency for data transfers.
	1482	+ * An ArrayIndexOutOfBoundsException may be thrown
	1483	+ * if the coordinates are not in bounds. However, explicit bounds
	1484	+ * checking is not guaranteed.
	1485	+ * A ClassCastException will be thrown if the input object is non null
	1486	+ * and references anything other than an array of TransferType.
	1487	+ * @see java.awt.image.SampleModel#getDataElements(int, int, int, int, Object, DataBuffer)
	1488	+ * @param x The X coordinate of the upper-left pixel location
	1489	+ * @param y The Y coordinate of the upper-left pixel location
	1490	+ * @param w Width of the pixel rectangle
	1491	+ * @param h Height of the pixel rectangle
	1492	+ * @param outData An object reference to an array of type defined by
	1493	+ * getTransferType() and length whgetNumDataElements().
	1494	+ * If null, an array of appropriate type and size will be
	1495	+ * allocated.
	1496	+ * @return An object reference to an array of type defined by
	1497	+ * getTransferType() with the requested pixel data.
	1498	+ *
	1499	+ * @throws ArrayIndexOutOfBoundsException if the coordinates are not
	1500	+ * in bounds, or if outData is too small to hold the output.
	1501	+ */
	1502	+ public Object getDataElements(int x, int y, int w, int h, Object outData) {
	1503	+ return sampleModel.getDataElements(x - sampleModelTranslateX,
	1504	+ y - sampleModelTranslateY,
	1505	+ w, h, outData, dataBuffer);
	1506	+ }
	1507	+
	1508	+ /**
	1509	+ * Returns the samples in an array of int for the specified pixel.
	1510	+ * An ArrayIndexOutOfBoundsException may be thrown
	1511	+ * if the coordinates are not in bounds. However, explicit bounds
	1512	+ * checking is not guaranteed.
	1513	+ * @param x The X coordinate of the pixel location
	1514	+ * @param y The Y coordinate of the pixel location
	1515	+ * @param iArray An optionally preallocated int array
	1516	+ * @return the samples for the specified pixel.
	1517	+ *
	1518	+ * @throws ArrayIndexOutOfBoundsException if the coordinates are not
	1519	+ * in bounds, or if iArray is too small to hold the output.
	1520	+ */
	1521	+ public int[] getPixel(int x, int y, int iArray[]) {
	1522	+ return sampleModel.getPixel(x - sampleModelTranslateX,
	1523	+ y - sampleModelTranslateY,
	1524	+ iArray, dataBuffer);
	1525	+ }
	1526	+
	1527	+ /**
	1528	+ * Returns the samples in an array of float for the
	1529	+ * specified pixel.
	1530	+ * An ArrayIndexOutOfBoundsException may be thrown
	1531	+ * if the coordinates are not in bounds. However, explicit bounds
	1532	+ * checking is not guaranteed.
	1533	+ * @param x The X coordinate of the pixel location
	1534	+ * @param y The Y coordinate of the pixel location
	1535	+ * @param fArray An optionally preallocated float array
	1536	+ * @return the samples for the specified pixel.
	1537	+ *
	1538	+ * @throws ArrayIndexOutOfBoundsException if the coordinates are not
	1539	+ * in bounds, or if fArray is too small to hold the output.
	1540	+ */
	1541	+ public float[] getPixel(int x, int y, float fArray[]) {
	1542	+ return sampleModel.getPixel(x - sampleModelTranslateX,
	1543	+ y - sampleModelTranslateY,
	1544	+ fArray, dataBuffer);
	1545	+ }
	1546	+
	1547	+ /**
	1548	+ * Returns the samples in an array of double for the specified pixel.
	1549	+ * An ArrayIndexOutOfBoundsException may be thrown
	1550	+ * if the coordinates are not in bounds. However, explicit bounds
	1551	+ * checking is not guaranteed.
	1552	+ * @param x The X coordinate of the pixel location
	1553	+ * @param y The Y coordinate of the pixel location
	1554	+ * @param dArray An optionally preallocated double array
	1555	+ * @return the samples for the specified pixel.
	1556	+ *
	1557	+ * @throws ArrayIndexOutOfBoundsException if the coordinates are not
	1558	+ * in bounds, or if dArray is too small to hold the output.
	1559	+ */
	1560	+ public double[] getPixel(int x, int y, double dArray[]) {
	1561	+ return sampleModel.getPixel(x - sampleModelTranslateX,
	1562	+ y - sampleModelTranslateY,
	1563	+ dArray, dataBuffer);
	1564	+ }
	1565	+
	1566	+ /**
	1567	+ * Returns an int array containing all samples for a rectangle of pixels,
	1568	+ * one sample per array element.
	1569	+ * An ArrayIndexOutOfBoundsException may be thrown
	1570	+ * if the coordinates are not in bounds. However, explicit bounds
	1571	+ * checking is not guaranteed.
	1572	+ * @param x The X coordinate of the upper-left pixel location
	1573	+ * @param y The Y coordinate of the upper-left pixel location
	1574	+ * @param w Width of the pixel rectangle
	1575	+ * @param h Height of the pixel rectangle
	1576	+ * @param iArray An optionally pre-allocated int array
	1577	+ * @return the samples for the specified rectangle of pixels.
	1578	+ *
	1579	+ * @throws ArrayIndexOutOfBoundsException if the coordinates are not
	1580	+ * in bounds, or if iArray is too small to hold the output.
	1581	+ */
	1582	+ public int[] getPixels(int x, int y, int w, int h, int iArray[]) {
	1583	+ return sampleModel.getPixels(x - sampleModelTranslateX,
	1584	+ y - sampleModelTranslateY, w, h,
	1585	+ iArray, dataBuffer);
	1586	+ }
	1587	+
	1588	+ /**
	1589	+ * Returns a float array containing all samples for a rectangle of pixels,
	1590	+ * one sample per array element.
	1591	+ * An ArrayIndexOutOfBoundsException may be thrown
	1592	+ * if the coordinates are not in bounds. However, explicit bounds
	1593	+ * checking is not guaranteed.
	1594	+ * @param x The X coordinate of the pixel location
	1595	+ * @param y The Y coordinate of the pixel location
	1596	+ * @param w Width of the pixel rectangle
	1597	+ * @param h Height of the pixel rectangle
	1598	+ * @param fArray An optionally pre-allocated float array
	1599	+ * @return the samples for the specified rectangle of pixels.
	1600	+ *
	1601	+ * @throws ArrayIndexOutOfBoundsException if the coordinates are not
	1602	+ * in bounds, or if fArray is too small to hold the output.
	1603	+ */
	1604	+ public float[] getPixels(int x, int y, int w, int h,
	1605	+ float fArray[]) {
	1606	+ return sampleModel.getPixels(x - sampleModelTranslateX,
	1607	+ y - sampleModelTranslateY, w, h,
	1608	+ fArray, dataBuffer);
	1609	+ }
	1610	+
	1611	+ /**
	1612	+ * Returns a double array containing all samples for a rectangle of pixels,
	1613	+ * one sample per array element.
	1614	+ * An ArrayIndexOutOfBoundsException may be thrown
	1615	+ * if the coordinates are not in bounds. However, explicit bounds
	1616	+ * checking is not guaranteed.
	1617	+ * @param x The X coordinate of the upper-left pixel location
	1618	+ * @param y The Y coordinate of the upper-left pixel location
	1619	+ * @param w Width of the pixel rectangle
	1620	+ * @param h Height of the pixel rectangle
	1621	+ * @param dArray An optionally pre-allocated double array
	1622	+ * @return the samples for the specified rectangle of pixels.
	1623	+ *
	1624	+ * @throws ArrayIndexOutOfBoundsException if the coordinates are not
	1625	+ * in bounds, or if dArray is too small to hold the output.
	1626	+ */
	1627	+ public double[] getPixels(int x, int y, int w, int h,
	1628	+ double dArray[]) {
	1629	+ return sampleModel.getPixels(x - sampleModelTranslateX,
	1630	+ y - sampleModelTranslateY,
	1631	+ w, h, dArray, dataBuffer);
	1632	+ }
	1633	+
	1634	+
	1635	+ /**
	1636	+ * Returns the sample in a specified band for the pixel located
	1637	+ * at (x,y) as an int.
	1638	+ * An ArrayIndexOutOfBoundsException may be thrown
	1639	+ * if the coordinates are not in bounds. However, explicit bounds
	1640	+ * checking is not guaranteed.
	1641	+ * @param x The X coordinate of the pixel location
	1642	+ * @param y The Y coordinate of the pixel location
	1643	+ * @param b The band to return
	1644	+ * @return the sample in the specified band for the pixel at the
	1645	+ * specified coordinate.
	1646	+ *
	1647	+ * @throws ArrayIndexOutOfBoundsException if the coordinates or
	1648	+ * the band index are not in bounds.
	1649	+ */
	1650	+ public int getSample(int x, int y, int b) {
	1651	+ return sampleModel.getSample(x - sampleModelTranslateX,
	1652	+ y - sampleModelTranslateY, b,
	1653	+ dataBuffer);
	1654	+ }
	1655	+
	1656	+ /**
	1657	+ * Returns the sample in a specified band
	1658	+ * for the pixel located at (x,y) as a float.
	1659	+ * An ArrayIndexOutOfBoundsException may be thrown
	1660	+ * if the coordinates are not in bounds. However, explicit bounds
	1661	+ * checking is not guaranteed.
	1662	+ * @param x The X coordinate of the pixel location
	1663	+ * @param y The Y coordinate of the pixel location
	1664	+ * @param b The band to return
	1665	+ * @return the sample in the specified band for the pixel at the
	1666	+ * specified coordinate.
	1667	+ *
	1668	+ * @throws ArrayIndexOutOfBoundsException if the coordinates or
	1669	+ * the band index are not in bounds.
	1670	+ */
	1671	+ public float getSampleFloat(int x, int y, int b) {
	1672	+ return sampleModel.getSampleFloat(x - sampleModelTranslateX,
	1673	+ y - sampleModelTranslateY, b,
	1674	+ dataBuffer);
	1675	+ }
	1676	+
	1677	+ /**
	1678	+ * Returns the sample in a specified band
	1679	+ * for a pixel located at (x,y) as a double.
	1680	+ * An ArrayIndexOutOfBoundsException may be thrown
	1681	+ * if the coordinates are not in bounds. However, explicit bounds
	1682	+ * checking is not guaranteed.
	1683	+ * @param x The X coordinate of the pixel location
	1684	+ * @param y The Y coordinate of the pixel location
	1685	+ * @param b The band to return
	1686	+ * @return the sample in the specified band for the pixel at the
	1687	+ * specified coordinate.
	1688	+ *
	1689	+ * @throws ArrayIndexOutOfBoundsException if the coordinates or
	1690	+ * the band index are not in bounds.
	1691	+ */
	1692	+ public double getSampleDouble(int x, int y, int b) {
	1693	+ return sampleModel.getSampleDouble(x - sampleModelTranslateX,
	1694	+ y - sampleModelTranslateY,
	1695	+ b, dataBuffer);
	1696	+ }
	1697	+
	1698	+ /**
	1699	+ * Returns the samples for a specified band for the specified rectangle
	1700	+ * of pixels in an int array, one sample per array element.
	1701	+ * An ArrayIndexOutOfBoundsException may be thrown
	1702	+ * if the coordinates are not in bounds. However, explicit bounds
	1703	+ * checking is not guaranteed.
	1704	+ * @param x The X coordinate of the upper-left pixel location
	1705	+ * @param y The Y coordinate of the upper-left pixel location
	1706	+ * @param w Width of the pixel rectangle
	1707	+ * @param h Height of the pixel rectangle
	1708	+ * @param b The band to return
	1709	+ * @param iArray An optionally pre-allocated int array
	1710	+ * @return the samples for the specified band for the specified
	1711	+ * rectangle of pixels.
	1712	+ *
	1713	+ * @throws ArrayIndexOutOfBoundsException if the coordinates or
	1714	+ * the band index are not in bounds, or if iArray is too small to
	1715	+ * hold the output.
	1716	+ */
	1717	+ public int[] getSamples(int x, int y, int w, int h, int b,
	1718	+ int iArray[]) {
	1719	+ return sampleModel.getSamples(x - sampleModelTranslateX,
	1720	+ y - sampleModelTranslateY,
	1721	+ w, h, b, iArray,
	1722	+ dataBuffer);
	1723	+ }
	1724	+
	1725	+ /**
	1726	+ * Returns the samples for a specified band for the specified rectangle
	1727	+ * of pixels in a float array, one sample per array element.
	1728	+ * An ArrayIndexOutOfBoundsException may be thrown
	1729	+ * if the coordinates are not in bounds. However, explicit bounds
	1730	+ * checking is not guaranteed.
	1731	+ * @param x The X coordinate of the upper-left pixel location
	1732	+ * @param y The Y coordinate of the upper-left pixel location
	1733	+ * @param w Width of the pixel rectangle
	1734	+ * @param h Height of the pixel rectangle
	1735	+ * @param b The band to return
	1736	+ * @param fArray An optionally pre-allocated float array
	1737	+ * @return the samples for the specified band for the specified
	1738	+ * rectangle of pixels.
	1739	+ *
	1740	+ * @throws ArrayIndexOutOfBoundsException if the coordinates or
	1741	+ * the band index are not in bounds, or if fArray is too small to
	1742	+ * hold the output.
	1743	+ */
	1744	+ public float[] getSamples(int x, int y, int w, int h, int b,
	1745	+ float fArray[]) {
	1746	+ return sampleModel.getSamples(x - sampleModelTranslateX,
	1747	+ y - sampleModelTranslateY,
	1748	+ w, h, b, fArray, dataBuffer);
	1749	+ }
	1750	+
	1751	+ /**
	1752	+ * Returns the samples for a specified band for a specified rectangle
	1753	+ * of pixels in a double array, one sample per array element.
	1754	+ * An ArrayIndexOutOfBoundsException may be thrown
	1755	+ * if the coordinates are not in bounds. However, explicit bounds
	1756	+ * checking is not guaranteed.
	1757	+ * @param x The X coordinate of the upper-left pixel location
	1758	+ * @param y The Y coordinate of the upper-left pixel location
	1759	+ * @param w Width of the pixel rectangle
	1760	+ * @param h Height of the pixel rectangle
	1761	+ * @param b The band to return
	1762	+ * @param dArray An optionally pre-allocated double array
	1763	+ * @return the samples for the specified band for the specified
	1764	+ * rectangle of pixels.
	1765	+ *
	1766	+ * @throws ArrayIndexOutOfBoundsException if the coordinates or
	1767	+ * the band index are not in bounds, or if dArray is too small to
	1768	+ * hold the output.
	1769	+ */
	1770	+ public double[] getSamples(int x, int y, int w, int h, int b,
	1771	+ double dArray[]) {
	1772	+ return sampleModel.getSamples(x - sampleModelTranslateX,
	1773	+ y - sampleModelTranslateY,
	1774	+ w, h, b, dArray, dataBuffer);
	1775	+ }
	1776	+
	1777	+}