| /* | |
| * Copyright (c) 1998, 2021, 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.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, | |
| (DataBufferByte) 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 DataBufferByte that contains the image data. | |
| * @param origin The Point that specifies the origin. | |
| */ | |
| public ByteInterleavedRaster(SampleModel sampleModel, | |
| DataBufferByte 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 DataBufferByte 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, | |
| DataBufferByte dataBuffer, | |
| Rectangle aRegion, | |
| Point origin, | |
| ByteInterleavedRaster parent) | |
| { | |
| super(sampleModel, dataBuffer, aRegion, origin, parent); | |
| this.maxX = minX + width; | |
| this.maxY = minY + height; | |
| this.data = stealData(dataBuffer, 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] += xOffset*pixelStride+yOffset*scanlineStride; | |
| } | |
| } 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] = dataBuffer.getOffset(); | |
| dataOffsets[0] += xOffset*pixelStride+yOffset*scanlineStride; | |
| } 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 - | |
| (xOffset*pixelStride+yOffset*scanlineStride); | |
| // 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 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 obj 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 w Width of the pixel rectangle. | |
| * @param h Height of the pixel rectangle. | |
| * @param obj An object reference to an array of type defined by | |
| * getTransferType() and length w*h*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, 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 w Width of the pixel rectangle. | |
| * @param h 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 w Width of the pixel rectangle. | |
| * @param h 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[numDataElements*w*h]; | |
| } | |
| 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 obj 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 obj An object reference to an array of type defined by | |
| * getTransferType() and length w*h*getNumDataElements() | |
| * 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 = y*scanlineStride + x*pixelStride + 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 = y*scanlineStride + x*pixelStride + 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 = y*scanlineStride + x*pixelStride; | |
| 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 = y*scanlineStride + x*pixelStride; | |
| 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[w*h*numBands]; | |
| } | |
| int lineOffset = y*scanlineStride + x*pixelStride; | |
| 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 = y*scanlineStride + x*pixelStride; | |
| 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. | |
| * @throws 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. | |
| * @throws 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, | |
| (DataBufferByte) 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 "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] + y*scanlineStride + x*pixelStride; | |
| // 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(""); | |
| // } | |
| // } | |
| } |