| /* |
| * Copyright (c) 1997, 2008, 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. |
| */ |
| |
| /* **************************************************************** |
| ****************************************************************** |
| ****************************************************************** |
| *** COPYRIGHT (c) Eastman Kodak Company, 1997 |
| *** As an unpublished work pursuant to Title 17 of the United |
| *** States Code. All rights reserved. |
| ****************************************************************** |
| ****************************************************************** |
| ******************************************************************/ |
| |
| package java.awt.image; |
| |
| /** |
| * This class represents image data which is stored in a band interleaved |
| * fashion and for |
| * which each sample of a pixel occupies one data element of the DataBuffer. |
| * It subclasses ComponentSampleModel but provides a more efficent |
| * implementation for accessing band interleaved image data than is provided |
| * by ComponentSampleModel. This class should typically be used when working |
| * with images which store sample data for each band in a different bank of the |
| * DataBuffer. Accessor methods are provided so that image data can be |
| * manipulated directly. Pixel stride is the number of |
| * data array elements between two samples for the same band on the same |
| * scanline. The pixel stride for a BandedSampleModel is one. |
| * Scanline stride is the number of data array elements between |
| * a given sample and the corresponding sample in the same column of the next |
| * scanline. Band offsets denote the number |
| * of data array elements from the first data array element of the bank |
| * of the DataBuffer holding each band to the first sample of the band. |
| * The bands are numbered from 0 to N-1. |
| * Bank indices denote the correspondence between a bank of the data buffer |
| * and a band of image data. This class supports |
| * {@link DataBuffer#TYPE_BYTE TYPE_BYTE}, |
| * {@link DataBuffer#TYPE_USHORT TYPE_USHORT}, |
| * {@link DataBuffer#TYPE_SHORT TYPE_SHORT}, |
| * {@link DataBuffer#TYPE_INT TYPE_INT}, |
| * {@link DataBuffer#TYPE_FLOAT TYPE_FLOAT}, and |
| * {@link DataBuffer#TYPE_DOUBLE TYPE_DOUBLE} datatypes |
| */ |
| |
| |
| public final class BandedSampleModel extends ComponentSampleModel |
| { |
| |
| /** |
| * Constructs a BandedSampleModel with the specified parameters. |
| * The pixel stride will be one data element. The scanline stride |
| * will be the same as the width. Each band will be stored in |
| * a separate bank and all band offsets will be zero. |
| * @param dataType The data type for storing samples. |
| * @param w The width (in pixels) of the region of |
| * image data described. |
| * @param h The height (in pixels) of the region of image |
| * data described. |
| * @param numBands The number of bands for the image data. |
| * @throws IllegalArgumentException if <code>dataType</code> is not |
| * one of the supported data types |
| */ |
| public BandedSampleModel(int dataType, int w, int h, int numBands) { |
| super(dataType, w, h, 1, w, |
| BandedSampleModel.createIndicesArray(numBands), |
| BandedSampleModel.createOffsetArray(numBands)); |
| } |
| |
| /** |
| * Constructs a BandedSampleModel with the specified parameters. |
| * The number of bands will be inferred from the lengths of the |
| * bandOffsets bankIndices arrays, which must be equal. The pixel |
| * stride will be one data element. |
| * @param dataType The data type for storing samples. |
| * @param w The width (in pixels) of the region of |
| * image data described. |
| * @param h The height (in pixels) of the region of |
| * image data described. |
| * @param scanlineStride The line stride of the of the image data. |
| * @param bankIndices The bank index for each band. |
| * @param bandOffsets The band offset for each band. |
| * @throws IllegalArgumentException if <code>dataType</code> is not |
| * one of the supported data types |
| */ |
| public BandedSampleModel(int dataType, |
| int w, int h, |
| int scanlineStride, |
| int bankIndices[], |
| int bandOffsets[]) { |
| |
| super(dataType, w, h, 1,scanlineStride, bankIndices, bandOffsets); |
| } |
| |
| /** |
| * Creates a new BandedSampleModel with the specified |
| * width and height. The new BandedSampleModel will have the same |
| * number of bands, storage data type, and bank indices |
| * as this BandedSampleModel. The band offsets will be compressed |
| * such that the offset between bands will be w*pixelStride and |
| * the minimum of all of the band offsets is zero. |
| * @param w the width of the resulting <code>BandedSampleModel</code> |
| * @param h the height of the resulting <code>BandedSampleModel</code> |
| * @return a new <code>BandedSampleModel</code> with the specified |
| * width and height. |
| * @throws IllegalArgumentException if <code>w</code> or |
| * <code>h</code> equals either |
| * <code>Integer.MAX_VALUE</code> or |
| * <code>Integer.MIN_VALUE</code> |
| * @throws IllegalArgumentException if <code>dataType</code> is not |
| * one of the supported data types |
| */ |
| public SampleModel createCompatibleSampleModel(int w, int h) { |
| int[] bandOffs; |
| |
| if (numBanks == 1) { |
| bandOffs = orderBands(bandOffsets, w*h); |
| } |
| else { |
| bandOffs = new int[bandOffsets.length]; |
| } |
| |
| SampleModel sampleModel = |
| new BandedSampleModel(dataType, w, h, w, bankIndices, bandOffs); |
| return sampleModel; |
| } |
| |
| /** |
| * Creates a new BandedSampleModel with a subset of the bands of this |
| * BandedSampleModel. The new BandedSampleModel can be |
| * used with any DataBuffer that the existing BandedSampleModel |
| * can be used with. The new BandedSampleModel/DataBuffer |
| * combination will represent an image with a subset of the bands |
| * of the original BandedSampleModel/DataBuffer combination. |
| * @throws RasterFormatException if the number of bands is greater than |
| * the number of banks in this sample model. |
| * @throws IllegalArgumentException if <code>dataType</code> is not |
| * one of the supported data types |
| */ |
| public SampleModel createSubsetSampleModel(int bands[]) { |
| if (bands.length > bankIndices.length) |
| throw new RasterFormatException("There are only " + |
| bankIndices.length + |
| " bands"); |
| int newBankIndices[] = new int[bands.length]; |
| int newBandOffsets[] = new int[bands.length]; |
| |
| for (int i=0; i<bands.length; i++) { |
| newBankIndices[i] = bankIndices[bands[i]]; |
| newBandOffsets[i] = bandOffsets[bands[i]]; |
| } |
| |
| return new BandedSampleModel(this.dataType, width, height, |
| this.scanlineStride, |
| newBankIndices, newBandOffsets); |
| } |
| |
| /** |
| * Creates a DataBuffer that corresponds to this BandedSampleModel, |
| * The DataBuffer's data type, number of banks, and size |
| * will be consistent with this BandedSampleModel. |
| * @throws IllegalArgumentException if <code>dataType</code> is not |
| * one of the supported types. |
| */ |
| public DataBuffer createDataBuffer() { |
| DataBuffer dataBuffer = null; |
| |
| int size = scanlineStride * height; |
| switch (dataType) { |
| case DataBuffer.TYPE_BYTE: |
| dataBuffer = new DataBufferByte(size, numBanks); |
| break; |
| case DataBuffer.TYPE_USHORT: |
| dataBuffer = new DataBufferUShort(size, numBanks); |
| break; |
| case DataBuffer.TYPE_SHORT: |
| dataBuffer = new DataBufferShort(size, numBanks); |
| break; |
| case DataBuffer.TYPE_INT: |
| dataBuffer = new DataBufferInt(size, numBanks); |
| break; |
| case DataBuffer.TYPE_FLOAT: |
| dataBuffer = new DataBufferFloat(size, numBanks); |
| break; |
| case DataBuffer.TYPE_DOUBLE: |
| dataBuffer = new DataBufferDouble(size, numBanks); |
| break; |
| default: |
| throw new IllegalArgumentException("dataType is not one " + |
| "of the supported types."); |
| } |
| |
| return dataBuffer; |
| } |
| |
| |
| /** |
| * Returns data for a single pixel in a primitive array of type |
| * TransferType. For a BandedSampleModel, this will be the same |
| * as the data type, and samples will be returned one per array |
| * element. Generally, obj |
| * should be passed in as null, so that the Object will be created |
| * automatically and will be of the right primitive data type. |
| * <p> |
| * The following code illustrates transferring data for one pixel from |
| * DataBuffer <code>db1</code>, whose storage layout is described by |
| * BandedSampleModel <code>bsm1</code>, to DataBuffer <code>db2</code>, |
| * whose storage layout is described by |
| * BandedSampleModel <code>bsm2</code>. |
| * The transfer will generally be more efficient than using |
| * getPixel/setPixel. |
| * <pre> |
| * BandedSampleModel bsm1, bsm2; |
| * DataBufferInt db1, db2; |
| * bsm2.setDataElements(x, y, bsm1.getDataElements(x, y, null, db1), |
| * db2); |
| * </pre> |
| * Using getDataElements/setDataElements to transfer between two |
| * DataBuffer/SampleModel pairs is legitimate if the SampleModels have |
| * the same number of bands, corresponding bands have the same number of |
| * bits per sample, and the TransferTypes are the same. |
| * <p> |
| * If obj is non-null, it should be a primitive array of type TransferType. |
| * Otherwise, a ClassCastException is thrown. An |
| * ArrayIndexOutOfBoundsException may be thrown if the coordinates are |
| * not in bounds, or if obj is non-null and is not large enough to hold |
| * the pixel data. |
| * @param x The X coordinate of the pixel location |
| * @param y The Y coordinate of the pixel location |
| * @param obj If non-null, a primitive array in which to return |
| * the pixel data. |
| * @param data The DataBuffer containing the image data. |
| * @return the data for the specified pixel. |
| * @see #setDataElements(int, int, Object, DataBuffer) |
| */ |
| public Object getDataElements(int x, int y, Object obj, DataBuffer data) { |
| if ((x < 0) || (y < 0) || (x >= width) || (y >= height)) { |
| throw new ArrayIndexOutOfBoundsException |
| ("Coordinate out of bounds!"); |
| } |
| int type = getTransferType(); |
| int numDataElems = getNumDataElements(); |
| int pixelOffset = y*scanlineStride + x; |
| |
| switch(type) { |
| |
| case DataBuffer.TYPE_BYTE: |
| |
| byte[] bdata; |
| |
| if (obj == null) { |
| bdata = new byte[numDataElems]; |
| } else { |
| bdata = (byte[])obj; |
| } |
| |
| for (int i=0; i<numDataElems; i++) { |
| bdata[i] = (byte)data.getElem(bankIndices[i], |
| pixelOffset + bandOffsets[i]); |
| } |
| |
| obj = (Object)bdata; |
| break; |
| |
| case DataBuffer.TYPE_USHORT: |
| case DataBuffer.TYPE_SHORT: |
| |
| short[] sdata; |
| |
| if (obj == null) { |
| sdata = new short[numDataElems]; |
| } else { |
| sdata = (short[])obj; |
| } |
| |
| for (int i=0; i<numDataElems; i++) { |
| sdata[i] = (short)data.getElem(bankIndices[i], |
| pixelOffset + bandOffsets[i]); |
| } |
| |
| obj = (Object)sdata; |
| break; |
| |
| case DataBuffer.TYPE_INT: |
| |
| int[] idata; |
| |
| if (obj == null) { |
| idata = new int[numDataElems]; |
| } else { |
| idata = (int[])obj; |
| } |
| |
| for (int i=0; i<numDataElems; i++) { |
| idata[i] = data.getElem(bankIndices[i], |
| pixelOffset + bandOffsets[i]); |
| } |
| |
| obj = (Object)idata; |
| break; |
| |
| case DataBuffer.TYPE_FLOAT: |
| |
| float[] fdata; |
| |
| if (obj == null) { |
| fdata = new float[numDataElems]; |
| } else { |
| fdata = (float[])obj; |
| } |
| |
| for (int i=0; i<numDataElems; i++) { |
| fdata[i] = data.getElemFloat(bankIndices[i], |
| pixelOffset + bandOffsets[i]); |
| } |
| |
| obj = (Object)fdata; |
| break; |
| |
| case DataBuffer.TYPE_DOUBLE: |
| |
| double[] ddata; |
| |
| if (obj == null) { |
| ddata = new double[numDataElems]; |
| } else { |
| ddata = (double[])obj; |
| } |
| |
| for (int i=0; i<numDataElems; i++) { |
| ddata[i] = data.getElemDouble(bankIndices[i], |
| pixelOffset + bandOffsets[i]); |
| } |
| |
| obj = (Object)ddata; |
| break; |
| } |
| |
| return obj; |
| } |
| |
| /** |
| * Returns all samples for the specified pixel in an int array. |
| * ArrayIndexOutOfBoundsException may be thrown if the coordinates are |
| * not in bounds. |
| * @param x The X coordinate of the pixel location |
| * @param y The Y coordinate of the pixel location |
| * @param iArray If non-null, returns the samples in this array |
| * @param data The DataBuffer containing the image data |
| * @return the samples for the specified pixel. |
| * @see #setPixel(int, int, int[], DataBuffer) |
| */ |
| public int[] getPixel(int x, int y, int iArray[], DataBuffer data) { |
| if ((x < 0) || (y < 0) || (x >= width) || (y >= height)) { |
| throw new ArrayIndexOutOfBoundsException |
| ("Coordinate out of bounds!"); |
| } |
| |
| int[] pixels; |
| |
| if (iArray != null) { |
| pixels = iArray; |
| } else { |
| pixels = new int [numBands]; |
| } |
| |
| int pixelOffset = y*scanlineStride + x; |
| for (int i=0; i<numBands; i++) { |
| pixels[i] = data.getElem(bankIndices[i], |
| pixelOffset + bandOffsets[i]); |
| } |
| return pixels; |
| } |
| |
| /** |
| * Returns all samples for the specified rectangle of pixels in |
| * an int array, one sample per data array element. |
| * ArrayIndexOutOfBoundsException may be thrown if the coordinates are |
| * not in bounds. |
| * @param x The X coordinate of the upper left pixel location |
| * @param y The Y coordinate of the upper left pixel location |
| * @param w The width of the pixel rectangle |
| * @param h The height of the pixel rectangle |
| * @param iArray If non-null, returns the samples in this array |
| * @param data The DataBuffer containing the image data |
| * @return the samples for the pixels within the specified region. |
| * @see #setPixels(int, int, int, int, int[], DataBuffer) |
| */ |
| public int[] getPixels(int x, int y, int w, int h, |
| int iArray[], DataBuffer data) { |
| int x1 = x + w; |
| int y1 = y + h; |
| |
| if (x < 0 || x >= width || w > width || x1 < 0 || x1 > width || |
| y < 0 || y >= height || h > height || y1 < 0 || y1 > height) |
| { |
| throw new ArrayIndexOutOfBoundsException |
| ("Coordinate out of bounds!"); |
| } |
| int[] pixels; |
| |
| if (iArray != null) { |
| pixels = iArray; |
| } else { |
| pixels = new int[w*h*numBands]; |
| } |
| |
| for (int k = 0; k < numBands; k++) { |
| int lineOffset = y*scanlineStride + x + bandOffsets[k]; |
| int srcOffset = k; |
| int bank = bankIndices[k]; |
| |
| for (int i = 0; i < h; i++) { |
| int pixelOffset = lineOffset; |
| for (int j = 0; j < w; j++) { |
| pixels[srcOffset] = data.getElem(bank, pixelOffset++); |
| srcOffset += numBands; |
| } |
| lineOffset += scanlineStride; |
| } |
| } |
| return pixels; |
| } |
| |
| /** |
| * Returns as int the sample in a specified band for the pixel |
| * located at (x,y). |
| * ArrayIndexOutOfBoundsException may be thrown if the coordinates are |
| * not in bounds. |
| * @param x The X coordinate of the pixel location |
| * @param y The Y coordinate of the pixel location |
| * @param b The band to return |
| * @param data The DataBuffer containing the image data |
| * @return the sample in the specified band for the specified pixel. |
| * @see #setSample(int, int, int, int, DataBuffer) |
| */ |
| public int getSample(int x, int y, int b, DataBuffer data) { |
| // Bounds check for 'b' will be performed automatically |
| if ((x < 0) || (y < 0) || (x >= width) || (y >= height)) { |
| throw new ArrayIndexOutOfBoundsException |
| ("Coordinate out of bounds!"); |
| } |
| int sample = |
| data.getElem(bankIndices[b], |
| y*scanlineStride + x + bandOffsets[b]); |
| return sample; |
| } |
| |
| /** |
| * Returns the sample in a specified band |
| * for the pixel located at (x,y) as a float. |
| * ArrayIndexOutOfBoundsException may be thrown if the coordinates are |
| * not in bounds. |
| * @param x The X coordinate of the pixel location |
| * @param y The Y coordinate of the pixel location |
| * @param b The band to return |
| * @param data The DataBuffer containing the image data |
| * @return a float value that represents the sample in the specified |
| * band for the specified pixel. |
| */ |
| public float getSampleFloat(int x, int y, int b, DataBuffer data) { |
| // Bounds check for 'b' will be performed automatically |
| if ((x < 0) || (y < 0) || (x >= width) || (y >= height)) { |
| throw new ArrayIndexOutOfBoundsException |
| ("Coordinate out of bounds!"); |
| } |
| |
| float sample = data.getElemFloat(bankIndices[b], |
| y*scanlineStride + x + bandOffsets[b]); |
| return sample; |
| } |
| |
| /** |
| * Returns the sample in a specified band |
| * for a pixel located at (x,y) as a double. |
| * ArrayIndexOutOfBoundsException may be thrown if the coordinates are |
| * not in bounds. |
| * @param x The X coordinate of the pixel location |
| * @param y The Y coordinate of the pixel location |
| * @param b The band to return |
| * @param data The DataBuffer containing the image data |
| * @return a double value that represents the sample in the specified |
| * band for the specified pixel. |
| */ |
| public double getSampleDouble(int x, int y, int b, DataBuffer data) { |
| // Bounds check for 'b' will be performed automatically |
| if ((x < 0) || (y < 0) || (x >= width) || (y >= height)) { |
| throw new ArrayIndexOutOfBoundsException |
| ("Coordinate out of bounds!"); |
| } |
| |
| double sample = data.getElemDouble(bankIndices[b], |
| y*scanlineStride + x + bandOffsets[b]); |
| return sample; |
| } |
| |
| /** |
| * Returns the samples in a specified band for the specified rectangle |
| * of pixels in an int array, one sample per data array element. |
| * ArrayIndexOutOfBoundsException may be thrown if the coordinates are |
| * not in bounds. |
| * @param x The X coordinate of the upper left pixel location |
| * @param y The Y coordinate of the upper left pixel location |
| * @param w The width of the pixel rectangle |
| * @param h The height of the pixel rectangle |
| * @param b The band to return |
| * @param iArray If non-null, returns the samples in this array |
| * @param data The DataBuffer containing the image data |
| * @return the samples in the specified band for the pixels within |
| * the specified region. |
| * @see #setSamples(int, int, int, int, int, int[], DataBuffer) |
| */ |
| public int[] getSamples(int x, int y, int w, int h, int b, |
| int iArray[], DataBuffer data) { |
| // Bounds check for 'b' will be performed automatically |
| if ((x < 0) || (y < 0) || (x + w > width) || (y + h > height)) { |
| 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 + bandOffsets[b]; |
| int srcOffset = 0; |
| int bank = bankIndices[b]; |
| |
| for (int i = 0; i < h; i++) { |
| int sampleOffset = lineOffset; |
| for (int j = 0; j < w; j++) { |
| samples[srcOffset++] = data.getElem(bank, sampleOffset++); |
| } |
| lineOffset += scanlineStride; |
| } |
| return samples; |
| } |
| |
| /** |
| * Sets the data for a single pixel in the specified DataBuffer from a |
| * primitive array of type TransferType. For a BandedSampleModel, |
| * this will be the same as the data type, and samples are transferred |
| * one per array element. |
| * <p> |
| * The following code illustrates transferring data for one pixel from |
| * DataBuffer <code>db1</code>, whose storage layout is described by |
| * BandedSampleModel <code>bsm1</code>, to DataBuffer <code>db2</code>, |
| * whose storage layout is described by |
| * BandedSampleModel <code>bsm2</code>. |
| * The transfer will generally be more efficient than using |
| * getPixel/setPixel. |
| * <pre> |
| * BandedSampleModel bsm1, bsm2; |
| * DataBufferInt db1, db2; |
| * bsm2.setDataElements(x, y, bsm1.getDataElements(x, y, null, db1), |
| * db2); |
| * </pre> |
| * Using getDataElements/setDataElements to transfer between two |
| * DataBuffer/SampleModel pairs is legitimate if the SampleModels have |
| * the same number of bands, corresponding bands have the same number of |
| * bits per sample, and the TransferTypes are the same. |
| * <p> |
| * obj must be a primitive array of type TransferType. Otherwise, |
| * a ClassCastException is thrown. An |
| * ArrayIndexOutOfBoundsException may be thrown if the coordinates are |
| * not in bounds, or if obj is not large enough to hold the pixel data. |
| * @param x The X coordinate of the pixel location |
| * @param y The Y coordinate of the pixel location |
| * @param obj If non-null, returns the primitive array in this |
| * object |
| * @param data The DataBuffer containing the image data |
| * @see #getDataElements(int, int, Object, DataBuffer) |
| */ |
| public void setDataElements(int x, int y, Object obj, DataBuffer data) { |
| if ((x < 0) || (y < 0) || (x >= width) || (y >= height)) { |
| throw new ArrayIndexOutOfBoundsException |
| ("Coordinate out of bounds!"); |
| } |
| int type = getTransferType(); |
| int numDataElems = getNumDataElements(); |
| int pixelOffset = y*scanlineStride + x; |
| |
| switch(type) { |
| |
| case DataBuffer.TYPE_BYTE: |
| |
| byte[] barray = (byte[])obj; |
| |
| for (int i=0; i<numDataElems; i++) { |
| data.setElem(bankIndices[i], pixelOffset + bandOffsets[i], |
| barray[i] & 0xff); |
| } |
| break; |
| |
| case DataBuffer.TYPE_USHORT: |
| case DataBuffer.TYPE_SHORT: |
| |
| short[] sarray = (short[])obj; |
| |
| for (int i=0; i<numDataElems; i++) { |
| data.setElem(bankIndices[i], pixelOffset + bandOffsets[i], |
| sarray[i] & 0xffff); |
| } |
| break; |
| |
| case DataBuffer.TYPE_INT: |
| |
| int[] iarray = (int[])obj; |
| |
| for (int i=0; i<numDataElems; i++) { |
| data.setElem(bankIndices[i], pixelOffset + bandOffsets[i], |
| iarray[i]); |
| } |
| break; |
| |
| case DataBuffer.TYPE_FLOAT: |
| |
| float[] farray = (float[])obj; |
| |
| for (int i=0; i<numDataElems; i++) { |
| data.setElemFloat(bankIndices[i], pixelOffset + bandOffsets[i], |
| farray[i]); |
| } |
| break; |
| |
| case DataBuffer.TYPE_DOUBLE: |
| |
| double[] darray = (double[])obj; |
| |
| for (int i=0; i<numDataElems; i++) { |
| data.setElemDouble(bankIndices[i], pixelOffset + bandOffsets[i], |
| darray[i]); |
| } |
| break; |
| |
| } |
| } |
| |
| /** |
| * Sets a pixel in the DataBuffer using an int array of samples for input. |
| * ArrayIndexOutOfBoundsException may be thrown if the coordinates are |
| * not in bounds. |
| * @param x The X coordinate of the pixel location |
| * @param y The Y coordinate of the pixel location |
| * @param iArray The input samples in an int array |
| * @param data The DataBuffer containing the image data |
| * @see #getPixel(int, int, int[], DataBuffer) |
| */ |
| public void setPixel(int x, int y, int iArray[], DataBuffer data) { |
| if ((x < 0) || (y < 0) || (x >= width) || (y >= height)) { |
| throw new ArrayIndexOutOfBoundsException |
| ("Coordinate out of bounds!"); |
| } |
| int pixelOffset = y*scanlineStride + x; |
| for (int i=0; i<numBands; i++) { |
| data.setElem(bankIndices[i], pixelOffset + bandOffsets[i], |
| iArray[i]); |
| } |
| } |
| |
| /** |
| * Sets all samples for a rectangle of pixels from an int array containing |
| * one sample per array element. |
| * ArrayIndexOutOfBoundsException may be thrown if the coordinates are |
| * not in bounds. |
| * @param x The X coordinate of the upper left pixel location |
| * @param y The Y coordinate of the upper left pixel location |
| * @param w The width of the pixel rectangle |
| * @param h The height of the pixel rectangle |
| * @param iArray The input samples in an int array |
| * @param data The DataBuffer containing the image data |
| * @see #getPixels(int, int, int, int, int[], DataBuffer) |
| */ |
| public void setPixels(int x, int y, int w, int h, |
| int iArray[], DataBuffer data) { |
| int x1 = x + w; |
| int y1 = y + h; |
| |
| if (x < 0 || x >= width || w > width || x1 < 0 || x1 > width || |
| y < 0 || y >= height || h > height || y1 < 0 || y1 > height) |
| { |
| throw new ArrayIndexOutOfBoundsException |
| ("Coordinate out of bounds!"); |
| } |
| |
| for (int k = 0; k < numBands; k++) { |
| int lineOffset = y*scanlineStride + x + bandOffsets[k]; |
| int srcOffset = k; |
| int bank = bankIndices[k]; |
| |
| for (int i = 0; i < h; i++) { |
| int pixelOffset = lineOffset; |
| for (int j = 0; j < w; j++) { |
| data.setElem(bank, pixelOffset++, iArray[srcOffset]); |
| srcOffset += numBands; |
| } |
| lineOffset += scanlineStride; |
| } |
| } |
| } |
| |
| /** |
| * Sets a sample in the specified band for the pixel located at (x,y) |
| * in the DataBuffer using an int for input. |
| * ArrayIndexOutOfBoundsException may be thrown if the coordinates are |
| * not in bounds. |
| * @param x The X coordinate of the pixel location |
| * @param y The Y coordinate of the pixel location |
| * @param b The band to set |
| * @param s The input sample as an int |
| * @param data The DataBuffer containing the image data |
| * @see #getSample(int, int, int, DataBuffer) |
| */ |
| public void setSample(int x, int y, int b, int s, |
| DataBuffer data) { |
| // Bounds check for 'b' will be performed automatically |
| if ((x < 0) || (y < 0) || (x >= width) || (y >= height)) { |
| throw new ArrayIndexOutOfBoundsException |
| ("Coordinate out of bounds!"); |
| } |
| data.setElem(bankIndices[b], |
| y*scanlineStride + x + bandOffsets[b], s); |
| } |
| |
| /** |
| * Sets a sample in the specified band for the pixel located at (x,y) |
| * in the DataBuffer using a float for input. |
| * ArrayIndexOutOfBoundsException may be thrown if the coordinates are |
| * not in bounds. |
| * @param x The X coordinate of the pixel location |
| * @param y The Y coordinate of the pixel location |
| * @param b The band to set |
| * @param s The input sample as a float |
| * @param data The DataBuffer containing the image data |
| * @see #getSample(int, int, int, DataBuffer) |
| */ |
| public void setSample(int x, int y, int b, |
| float s , |
| DataBuffer data) { |
| // Bounds check for 'b' will be performed automatically |
| if ((x < 0) || (y < 0) || (x >= width) || (y >= height)) { |
| throw new ArrayIndexOutOfBoundsException |
| ("Coordinate out of bounds!"); |
| } |
| data.setElemFloat(bankIndices[b], |
| y*scanlineStride + x + bandOffsets[b], s); |
| } |
| |
| /** |
| * Sets a sample in the specified band for the pixel located at (x,y) |
| * in the DataBuffer using a double for input. |
| * ArrayIndexOutOfBoundsException may be thrown if the coordinates are |
| * not in bounds. |
| * @param x The X coordinate of the pixel location |
| * @param y The Y coordinate of the pixel location |
| * @param b The band to set |
| * @param s The input sample as a double |
| * @param data The DataBuffer containing the image data |
| * @see #getSample(int, int, int, DataBuffer) |
| */ |
| public void setSample(int x, int y, int b, |
| double s, |
| DataBuffer data) { |
| // Bounds check for 'b' will be performed automatically |
| if ((x < 0) || (y < 0) || (x >= width) || (y >= height)) { |
| throw new ArrayIndexOutOfBoundsException |
| ("Coordinate out of bounds!"); |
| } |
| data.setElemDouble(bankIndices[b], |
| y*scanlineStride + x + bandOffsets[b], s); |
| } |
| |
| /** |
| * Sets the samples in the specified band for the specified rectangle |
| * of pixels from an int array containing one sample per data array element. |
| * ArrayIndexOutOfBoundsException may be thrown if the coordinates are |
| * not in bounds. |
| * @param x The X coordinate of the upper left pixel location |
| * @param y The Y coordinate of the upper left pixel location |
| * @param w The width of the pixel rectangle |
| * @param h The height of the pixel rectangle |
| * @param b The band to set |
| * @param iArray The input sample array |
| * @param data The DataBuffer containing the image data |
| * @see #getSamples(int, int, int, int, int, int[], DataBuffer) |
| */ |
| public void setSamples(int x, int y, int w, int h, int b, |
| int iArray[], DataBuffer data) { |
| // Bounds check for 'b' will be performed automatically |
| if ((x < 0) || (y < 0) || (x + w > width) || (y + h > height)) { |
| throw new ArrayIndexOutOfBoundsException |
| ("Coordinate out of bounds!"); |
| } |
| int lineOffset = y*scanlineStride + x + bandOffsets[b]; |
| int srcOffset = 0; |
| int bank = bankIndices[b]; |
| |
| for (int i = 0; i < h; i++) { |
| int sampleOffset = lineOffset; |
| for (int j = 0; j < w; j++) { |
| data.setElem(bank, sampleOffset++, iArray[srcOffset++]); |
| } |
| lineOffset += scanlineStride; |
| } |
| } |
| |
| private static int[] createOffsetArray(int numBands) { |
| int[] bandOffsets = new int[numBands]; |
| for (int i=0; i < numBands; i++) { |
| bandOffsets[i] = 0; |
| } |
| return bandOffsets; |
| } |
| |
| private static int[] createIndicesArray(int numBands) { |
| int[] bankIndices = new int[numBands]; |
| for (int i=0; i < numBands; i++) { |
| bankIndices[i] = i; |
| } |
| return bankIndices; |
| } |
| |
| // Differentiate hash code from other ComponentSampleModel subclasses |
| public int hashCode() { |
| return super.hashCode() ^ 0x2; |
| } |
| } |
