| /* | |
| * 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.DataBufferUShort; | |
| import java.awt.Rectangle; | |
| import java.awt.Point; | |
| /** | |
| * This class defines a Raster with pixels consisting of one or more 16-bit | |
| * data elements stored in close proximity to each other in a short integer | |
| * array. The bit precision per data element is that | |
| * of the data type (that is, the bit precision for this Raster is 16). | |
| * 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 a | |
| * IndexColorModel if there is only one band. | |
| * <p> | |
| * For example, 5-6-5 RGB image data can be represented by a | |
| * ShortInterleavedRaster using a SinglePixelPackedSampleModel and | |
| * a ComponentColorModel. | |
| * | |
| * | |
| */ | |
| public class ShortInterleavedRaster extends ShortComponentRaster { | |
| /** 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 ShortInterleavedRaster 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 | |
| * PixelInterleavedSampleModel or SinglePixelPackedSampleModel. | |
| * @param sampleModel The SampleModel that specifies the layout. | |
| * @param origin The Point that specified the origin. | |
| */ | |
| public ShortInterleavedRaster(SampleModel sampleModel, Point origin) { | |
| this(sampleModel, | |
| (DataBufferUShort) sampleModel.createDataBuffer(), | |
| new Rectangle(origin.x, | |
| origin.y, | |
| sampleModel.getWidth(), | |
| sampleModel.getHeight()), | |
| origin, | |
| null); | |
| } | |
| /** | |
| * Constructs a ShortInterleavedRaster with the given SampleModel | |
| * and DataBuffer. The Raster's upper left corner is origin and | |
| * it is the same sizes the SampleModel. The DataBuffer is not | |
| * initialized and must be a DataBufferUShort compatible with SampleModel. | |
| * SampleModel must be of type PixelInterleavedSampleModel or | |
| * SinglePixelPackedSampleModel. | |
| * @param sampleModel The SampleModel that specifies the layout. | |
| * @param dataBuffer The DataBufferUShort that contains the image data. | |
| * @param origin The Point that specifies the origin. | |
| */ | |
| public ShortInterleavedRaster(SampleModel sampleModel, | |
| DataBufferUShort dataBuffer, | |
| Point origin) | |
| { | |
| this(sampleModel, | |
| dataBuffer, | |
| new Rectangle(origin.x, | |
| origin.y, | |
| sampleModel.getWidth(), | |
| sampleModel.getHeight()), | |
| origin, | |
| null); | |
| } | |
| /** | |
| * Constructs a ShortInterleavedRaster with the given SampleModel, | |
| * DataBuffer, and parent. DataBuffer must be a DataBufferUShort and | |
| * SampleModel must be of type PixelInterleavedSampleModel or | |
| * SinglePixelPackedSampleModel. 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 DataBufferUShort 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 ShortInterleavedRaster(SampleModel sampleModel, | |
| DataBufferUShort dataBuffer, | |
| Rectangle aRegion, | |
| Point origin, | |
| ShortInterleavedRaster parent) | |
| { | |
| super(sampleModel, dataBuffer, aRegion, origin, parent); | |
| this.maxX = minX + width; | |
| this.maxY = minY + height; | |
| this.data = stealData(dataBuffer, 0); | |
| // REMIND: need case for interleaved ComponentSampleModel | |
| if ((sampleModel instanceof PixelInterleavedSampleModel) || | |
| (sampleModel instanceof ComponentSampleModel && | |
| sampleModel.getNumBands() == 1)) { | |
| ComponentSampleModel csm = (ComponentSampleModel)sampleModel; | |
| this.scanlineStride = csm.getScanlineStride(); | |
| this.pixelStride = csm.getPixelStride(); | |
| this.dataOffsets = csm.getBandOffsets(); | |
| int xOffset = aRegion.x - origin.x; | |
| int yOffset = aRegion.y - origin.y; | |
| for (int i = 0; i < getNumDataElements(); i++) { | |
| dataOffsets[i] += xOffset*pixelStride+yOffset*scanlineStride; | |
| } | |
| } else if (sampleModel instanceof SinglePixelPackedSampleModel) { | |
| SinglePixelPackedSampleModel sppsm = | |
| (SinglePixelPackedSampleModel)sampleModel; | |
| this.scanlineStride = sppsm.getScanlineStride(); | |
| this.pixelStride = 1; | |
| this.dataOffsets = new int[1]; | |
| this.dataOffsets[0] = dataBuffer.getOffset(); | |
| int xOffset = aRegion.x - origin.x; | |
| int yOffset = aRegion.y - origin.y; | |
| dataOffsets[0] += xOffset+yOffset*scanlineStride; | |
| } else { | |
| throw new RasterFormatException("ShortInterleavedRasters must "+ | |
| "have PixelInterleavedSampleModel, SinglePixelPackedSampleModel"+ | |
| " or 1 band ComponentSampleModel. Sample model is "+ | |
| sampleModel); | |
| } | |
| this.bandOffset = this.dataOffsets[0]; | |
| 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 same sample in the same column of the next row. | |
| */ | |
| 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 short[] 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!"); | |
| } | |
| short[] outData; | |
| if (obj == null) { | |
| outData = new short[numDataElements]; | |
| } else { | |
| outData = (short[])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> | |
| * short[] bandData = (short[])Raster.getDataElements(x, y, w, h, null); | |
| * int numDataElements = Raster.getBands(); | |
| * short[] pixel = new short[numDataElements]; | |
| * // To find the 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) { | |
| if ((x < this.minX) || (y < this.minY) || | |
| (x + w > this.maxX) || (y + h > this.maxY)) { | |
| throw new ArrayIndexOutOfBoundsException | |
| ("Coordinate out of bounds!"); | |
| } | |
| short[] outData; | |
| if (obj == null) { | |
| outData = new short[w*h*numDataElements]; | |
| } else { | |
| outData = (short[])obj; | |
| } | |
| int yoff = (y-minY)*scanlineStride + | |
| (x-minX)*pixelStride; | |
| int xoff; | |
| int off = 0; | |
| int xstart; | |
| int ystart; | |
| 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; | |
| } | |
| /** | |
| * Returns a short integer 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> | |
| * short[] bandData = Raster.getShortData(x, y, w, h, null); | |
| * // To find the data element at location (x2, y2) | |
| * short dataElenent = 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 sample rectangle. | |
| * @param h Height of the sample 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 short[] getShortData(int x, int y, int w, int h, | |
| int band, short[] 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 short[numDataElements*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 short integer 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> | |
| * short[] bandData = Raster.getShortData(x, y, w, h, null); | |
| * int numDataElements = Raster.getNumBands(); | |
| * short[] pixel = new short[numDataElements]; | |
| * // To find the 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 short[] getShortData(int x, int y, int w, int h, short[] 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 short[numDataElements*w*h]; | |
| } | |
| int yoff = (y-minY)*scanlineStride + | |
| (x-minX)*pixelStride; | |
| int xoff; | |
| int off = 0; | |
| int xstart; | |
| int ystart; | |
| 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!"); | |
| } | |
| short[] inData = (short[])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 dstOffX = x + inRaster.getMinX(); | |
| int dstOffY = y + inRaster.getMinY(); | |
| 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, 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 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 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; | |
| // REMIND: Do something faster! | |
| // if (inRaster instanceof ShortInterleavedRaster) { | |
| // } | |
| 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) { | |
| if ((x < this.minX) || (y < this.minY) || | |
| (x + w > this.maxX) || (y + h > this.maxY)) { | |
| throw new ArrayIndexOutOfBoundsException | |
| ("Coordinate out of bounds!"); | |
| } | |
| short[] inData = (short[])obj; | |
| int yoff = (y-minY)*scanlineStride + | |
| (x-minX)*pixelStride; | |
| int xoff; | |
| int off = 0; | |
| int xstart; | |
| int ystart; | |
| 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(); | |
| } | |
| /** | |
| * Stores a short integer 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 | |
| * at location (x2, y2) would be found at: | |
| * <pre> | |
| * inData[((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 set. | |
| * @param inData The data elements to be stored. | |
| */ | |
| public void putShortData(int x, int y, int w, int h, | |
| int band, short[] 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 short integer 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 putShortData(int x, int y, int w, int h, short[] 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; | |
| 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(); | |
| } | |
| /** | |
| * 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 | |
| * band objects 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 | |
| * DataBuffers 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 ShortInterleavedRaster(sm, | |
| (DataBufferUShort) 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 ShortInterleavedRaster(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 "ShortInterleavedRaster: width = " + width | |
| + " height = " + height | |
| + " #numDataElements " + numDataElements; | |
| // +" xOff = "+xOffset+" yOff = "+yOffset); | |
| } | |
| } |