author | prr |
Thu, 10 Apr 2008 16:28:45 -0700 | |
changeset 539 | 7952521a4ad3 |
child 715 | f16baef3a20e |
permissions | -rw-r--r-- |
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/* |
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* Portions Copyright 1997-2006 Sun Microsystems, Inc. All Rights Reserved. |
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
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* |
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* This code is free software; you can redistribute it and/or modify it |
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* under the terms of the GNU General Public License version 2 only, as |
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* published by the Free Software Foundation. Sun designates this |
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* particular file as subject to the "Classpath" exception as provided |
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* by Sun in the LICENSE file that accompanied this code. |
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* |
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* This code is distributed in the hope that it will be useful, but WITHOUT |
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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* version 2 for more details (a copy is included in the LICENSE file that |
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* accompanied this code). |
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* |
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* You should have received a copy of the GNU General Public License version |
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* 2 along with this work; if not, write to the Free Software Foundation, |
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
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* |
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* Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, |
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* CA 95054 USA or visit www.sun.com if you need additional information or |
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* have any questions. |
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*/ |
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/* **************************************************************** |
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****************************************************************** |
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****************************************************************** |
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*** COPYRIGHT (c) Eastman Kodak Company, 1997 |
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*** As an unpublished work pursuant to Title 17 of the United |
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*** States Code. All rights reserved. |
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****************************************************************** |
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****************************************************************** |
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******************************************************************/ |
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package java.awt.image; |
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/** |
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* The <code>MultiPixelPackedSampleModel</code> class represents |
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* one-banded images and can pack multiple one-sample |
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* pixels into one data element. Pixels are not allowed to span data elements. |
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* The data type can be DataBuffer.TYPE_BYTE, DataBuffer.TYPE_USHORT, |
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* or DataBuffer.TYPE_INT. Each pixel must be a power of 2 number of bits |
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* and a power of 2 number of pixels must fit exactly in one data element. |
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* Pixel bit stride is equal to the number of bits per pixel. Scanline |
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* stride is in data elements and the last several data elements might be |
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* padded with unused pixels. Data bit offset is the offset in bits from |
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* the beginning of the {@link DataBuffer} to the first pixel and must be |
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* a multiple of pixel bit stride. |
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* <p> |
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* The following code illustrates extracting the bits for pixel |
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* <code>x, y</code> from <code>DataBuffer</code> <code>data</code> |
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* and storing the pixel data in data elements of type |
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* <code>dataType</code>: |
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* <pre> |
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* int dataElementSize = DataBuffer.getDataTypeSize(dataType); |
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* int bitnum = dataBitOffset + x*pixelBitStride; |
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* int element = data.getElem(y*scanlineStride + bitnum/dataElementSize); |
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* int shift = dataElementSize - (bitnum & (dataElementSize-1)) |
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* - pixelBitStride; |
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* int pixel = (element >> shift) & ((1 << pixelBitStride) - 1); |
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* </pre> |
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*/ |
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public class MultiPixelPackedSampleModel extends SampleModel |
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{ |
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/** The number of bits from one pixel to the next. */ |
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int pixelBitStride; |
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/** Bitmask that extracts the rightmost pixel of a data element. */ |
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int bitMask; |
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/** |
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* The number of pixels that fit in a data element. Also used |
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* as the number of bits per pixel. |
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*/ |
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int pixelsPerDataElement; |
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/** The size of a data element in bits. */ |
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int dataElementSize; |
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/** The bit offset into the data array where the first pixel begins. |
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*/ |
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int dataBitOffset; |
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/** ScanlineStride of the data buffer described in data array elements. */ |
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int scanlineStride; |
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/** |
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* Constructs a <code>MultiPixelPackedSampleModel</code> with the |
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* specified data type, width, height and number of bits per pixel. |
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* @param dataType the data type for storing samples |
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* @param w the width, in pixels, of the region of |
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* image data described |
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* @param h the height, in pixels, of the region of |
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* image data described |
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* @param numberOfBits the number of bits per pixel |
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* @throws IllegalArgumentException if <code>dataType</code> is not |
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* either <code>DataBuffer.TYPE_BYTE</code>, |
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* <code>DataBuffer.TYPE_USHORT</code>, or |
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* <code>DataBuffer.TYPE_INT</code> |
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*/ |
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public MultiPixelPackedSampleModel(int dataType, |
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int w, |
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int h, |
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int numberOfBits) { |
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this(dataType,w,h, |
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numberOfBits, |
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(w*numberOfBits+DataBuffer.getDataTypeSize(dataType)-1)/ |
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DataBuffer.getDataTypeSize(dataType), |
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0); |
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if (dataType != DataBuffer.TYPE_BYTE && |
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dataType != DataBuffer.TYPE_USHORT && |
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dataType != DataBuffer.TYPE_INT) { |
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throw new IllegalArgumentException("Unsupported data type "+ |
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dataType); |
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} |
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} |
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/** |
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* Constructs a <code>MultiPixelPackedSampleModel</code> with |
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* specified data type, width, height, number of bits per pixel, |
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* scanline stride and data bit offset. |
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* @param dataType the data type for storing samples |
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* @param w the width, in pixels, of the region of |
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* image data described |
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* @param h the height, in pixels, of the region of |
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* image data described |
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* @param numberOfBits the number of bits per pixel |
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* @param scanlineStride the line stride of the image data |
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* @param dataBitOffset the data bit offset for the region of image |
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* data described |
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* @exception RasterFormatException if the number of bits per pixel |
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* is not a power of 2 or if a power of 2 number of |
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* pixels do not fit in one data element. |
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* @throws IllegalArgumentException if <code>w</code> or |
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* <code>h</code> is not greater than 0 |
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|
138 |
* @throws IllegalArgumentException if <code>dataType</code> is not |
7952521a4ad3
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parents:
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|
139 |
* either <code>DataBuffer.TYPE_BYTE</code>, |
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parents:
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|
140 |
* <code>DataBuffer.TYPE_USHORT</code>, or |
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parents:
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|
141 |
* <code>DataBuffer.TYPE_INT</code> |
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parents:
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|
142 |
*/ |
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parents:
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|
143 |
public MultiPixelPackedSampleModel(int dataType, int w, int h, |
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|
144 |
int numberOfBits, |
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|
145 |
int scanlineStride, |
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parents:
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|
146 |
int dataBitOffset) { |
7952521a4ad3
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parents:
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|
147 |
super(dataType, w, h, 1); |
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|
148 |
if (dataType != DataBuffer.TYPE_BYTE && |
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parents:
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|
149 |
dataType != DataBuffer.TYPE_USHORT && |
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prr
parents:
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|
150 |
dataType != DataBuffer.TYPE_INT) { |
7952521a4ad3
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prr
parents:
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|
151 |
throw new IllegalArgumentException("Unsupported data type "+ |
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parents:
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|
152 |
dataType); |
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prr
parents:
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|
153 |
} |
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|
154 |
this.dataType = dataType; |
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prr
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|
155 |
this.pixelBitStride = numberOfBits; |
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prr
parents:
diff
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|
156 |
this.scanlineStride = scanlineStride; |
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prr
parents:
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|
157 |
this.dataBitOffset = dataBitOffset; |
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parents:
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|
158 |
this.dataElementSize = DataBuffer.getDataTypeSize(dataType); |
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|
159 |
this.pixelsPerDataElement = dataElementSize/numberOfBits; |
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|
160 |
if (pixelsPerDataElement*numberOfBits != dataElementSize) { |
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parents:
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|
161 |
throw new RasterFormatException("MultiPixelPackedSampleModel " + |
7952521a4ad3
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parents:
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|
162 |
"does not allow pixels to " + |
7952521a4ad3
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prr
parents:
diff
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|
163 |
"span data element boundaries"); |
7952521a4ad3
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prr
parents:
diff
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|
164 |
} |
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parents:
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|
165 |
this.bitMask = (1 << numberOfBits) - 1; |
7952521a4ad3
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prr
parents:
diff
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|
166 |
} |
7952521a4ad3
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prr
parents:
diff
changeset
|
167 |
|
7952521a4ad3
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prr
parents:
diff
changeset
|
168 |
|
7952521a4ad3
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prr
parents:
diff
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|
169 |
/** |
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prr
parents:
diff
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|
170 |
* Creates a new <code>MultiPixelPackedSampleModel</code> with the |
7952521a4ad3
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prr
parents:
diff
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|
171 |
* specified width and height. The new |
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prr
parents:
diff
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|
172 |
* <code>MultiPixelPackedSampleModel</code> has the |
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parents:
diff
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|
173 |
* same storage data type and number of bits per pixel as this |
7952521a4ad3
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prr
parents:
diff
changeset
|
174 |
* <code>MultiPixelPackedSampleModel</code>. |
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prr
parents:
diff
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|
175 |
* @param w the specified width |
7952521a4ad3
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prr
parents:
diff
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|
176 |
* @param h the specified height |
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prr
parents:
diff
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|
177 |
* @return a {@link SampleModel} with the specified width and height |
7952521a4ad3
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parents:
diff
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|
178 |
* and with the same storage data type and number of bits per pixel |
7952521a4ad3
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prr
parents:
diff
changeset
|
179 |
* as this <code>MultiPixelPackedSampleModel</code>. |
7952521a4ad3
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prr
parents:
diff
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|
180 |
* @throws IllegalArgumentException if <code>w</code> or |
7952521a4ad3
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prr
parents:
diff
changeset
|
181 |
* <code>h</code> is not greater than 0 |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
182 |
*/ |
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6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
183 |
public SampleModel createCompatibleSampleModel(int w, int h) { |
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prr
parents:
diff
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|
184 |
SampleModel sampleModel = |
7952521a4ad3
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prr
parents:
diff
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|
185 |
new MultiPixelPackedSampleModel(dataType, w, h, pixelBitStride); |
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parents:
diff
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|
186 |
return sampleModel; |
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prr
parents:
diff
changeset
|
187 |
} |
7952521a4ad3
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prr
parents:
diff
changeset
|
188 |
|
7952521a4ad3
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prr
parents:
diff
changeset
|
189 |
/** |
7952521a4ad3
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prr
parents:
diff
changeset
|
190 |
* Creates a <code>DataBuffer</code> that corresponds to this |
7952521a4ad3
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prr
parents:
diff
changeset
|
191 |
* <code>MultiPixelPackedSampleModel</code>. The |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
192 |
* <code>DataBuffer</code> object's data type and size |
7952521a4ad3
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prr
parents:
diff
changeset
|
193 |
* is consistent with this <code>MultiPixelPackedSampleModel</code>. |
7952521a4ad3
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prr
parents:
diff
changeset
|
194 |
* The <code>DataBuffer</code> has a single bank. |
7952521a4ad3
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prr
parents:
diff
changeset
|
195 |
* @return a <code>DataBuffer</code> with the same data type and |
7952521a4ad3
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prr
parents:
diff
changeset
|
196 |
* size as this <code>MultiPixelPackedSampleModel</code>. |
7952521a4ad3
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prr
parents:
diff
changeset
|
197 |
*/ |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
198 |
public DataBuffer createDataBuffer() { |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
199 |
DataBuffer dataBuffer = null; |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
200 |
|
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
201 |
int size = (int)scanlineStride*height; |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
202 |
switch (dataType) { |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
203 |
case DataBuffer.TYPE_BYTE: |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
204 |
dataBuffer = new DataBufferByte(size+(dataBitOffset+7)/8); |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
205 |
break; |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
206 |
case DataBuffer.TYPE_USHORT: |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
207 |
dataBuffer = new DataBufferUShort(size+(dataBitOffset+15)/16); |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
208 |
break; |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
209 |
case DataBuffer.TYPE_INT: |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
210 |
dataBuffer = new DataBufferInt(size+(dataBitOffset+31)/32); |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
211 |
break; |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
212 |
} |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
213 |
return dataBuffer; |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
214 |
} |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
215 |
|
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
216 |
/** |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
217 |
* Returns the number of data elements needed to transfer one pixel |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
218 |
* via the {@link #getDataElements} and {@link #setDataElements} |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
219 |
* methods. For a <code>MultiPixelPackedSampleModel</code>, this is |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
220 |
* one. |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
221 |
* @return the number of data elements. |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
222 |
*/ |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
223 |
public int getNumDataElements() { |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
224 |
return 1; |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
225 |
} |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
226 |
|
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
227 |
/** |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
228 |
* Returns the number of bits per sample for all bands. |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
229 |
* @return the number of bits per sample. |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
230 |
*/ |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
231 |
public int[] getSampleSize() { |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
232 |
int sampleSize[] = {pixelBitStride}; |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
233 |
return sampleSize; |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
234 |
} |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
235 |
|
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
236 |
/** |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
237 |
* Returns the number of bits per sample for the specified band. |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
238 |
* @param band the specified band |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
239 |
* @return the number of bits per sample for the specified band. |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
240 |
*/ |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
241 |
public int getSampleSize(int band) { |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
242 |
return pixelBitStride; |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
243 |
} |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
244 |
|
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
245 |
/** |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
246 |
* Returns the offset of pixel (x, y) in data array elements. |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
247 |
* @param x the X coordinate of the specified pixel |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
248 |
* @param y the Y coordinate of the specified pixel |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
249 |
* @return the offset of the specified pixel. |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
250 |
*/ |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
251 |
public int getOffset(int x, int y) { |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
252 |
int offset = y * scanlineStride; |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
253 |
offset += (x*pixelBitStride+dataBitOffset)/dataElementSize; |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
254 |
return offset; |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
255 |
} |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
256 |
|
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
257 |
/** |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
258 |
* Returns the offset, in bits, into the data element in which it is |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
259 |
* stored for the <code>x</code>th pixel of a scanline. |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
260 |
* This offset is the same for all scanlines. |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
261 |
* @param x the specified pixel |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
262 |
* @return the bit offset of the specified pixel. |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
263 |
*/ |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
264 |
public int getBitOffset(int x){ |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
265 |
return (x*pixelBitStride+dataBitOffset)%dataElementSize; |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
266 |
} |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
267 |
|
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
268 |
/** |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
269 |
* Returns the scanline stride. |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
270 |
* @return the scanline stride of this |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
271 |
* <code>MultiPixelPackedSampleModel</code>. |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
272 |
*/ |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
273 |
public int getScanlineStride() { |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
274 |
return scanlineStride; |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
275 |
} |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
276 |
|
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
277 |
/** |
7952521a4ad3
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278 |
* Returns the pixel bit stride in bits. This value is the same as |
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|
279 |
* the number of bits per pixel. |
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|
280 |
* @return the <code>pixelBitStride</code> of this |
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|
281 |
* <code>MultiPixelPackedSampleModel</code>. |
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|
282 |
*/ |
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|
283 |
public int getPixelBitStride() { |
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|
284 |
return pixelBitStride; |
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|
285 |
} |
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|
286 |
|
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|
287 |
/** |
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|
288 |
* Returns the data bit offset in bits. |
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|
289 |
* @return the <code>dataBitOffset</code> of this |
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|
290 |
* <code>MultiPixelPackedSampleModel</code>. |
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parents:
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|
291 |
*/ |
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|
292 |
public int getDataBitOffset() { |
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|
293 |
return dataBitOffset; |
7952521a4ad3
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prr
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|
294 |
} |
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|
295 |
|
7952521a4ad3
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prr
parents:
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|
296 |
/** |
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prr
parents:
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|
297 |
* Returns the TransferType used to transfer pixels by way of the |
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parents:
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|
298 |
* <code>getDataElements</code> and <code>setDataElements</code> |
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|
299 |
* methods. The TransferType might or might not be the same as the |
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|
300 |
* storage DataType. The TransferType is one of |
7952521a4ad3
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|
301 |
* DataBuffer.TYPE_BYTE, DataBuffer.TYPE_USHORT, |
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|
302 |
* or DataBuffer.TYPE_INT. |
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|
303 |
* @return the transfertype. |
7952521a4ad3
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prr
parents:
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|
304 |
*/ |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
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|
305 |
public int getTransferType() { |
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prr
parents:
diff
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|
306 |
if (pixelBitStride > 16) |
7952521a4ad3
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prr
parents:
diff
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|
307 |
return DataBuffer.TYPE_INT; |
7952521a4ad3
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prr
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|
308 |
else if (pixelBitStride > 8) |
7952521a4ad3
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prr
parents:
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|
309 |
return DataBuffer.TYPE_USHORT; |
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|
310 |
else |
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6662775: Move imaging and color classes from closed to open
prr
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|
311 |
return DataBuffer.TYPE_BYTE; |
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prr
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|
312 |
} |
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prr
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|
313 |
|
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6662775: Move imaging and color classes from closed to open
prr
parents:
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|
314 |
/** |
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6662775: Move imaging and color classes from closed to open
prr
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diff
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|
315 |
* Creates a new <code>MultiPixelPackedSampleModel</code> with a |
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|
316 |
* subset of the bands of this |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
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parents:
diff
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|
317 |
* <code>MultiPixelPackedSampleModel</code>. Since a |
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diff
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|
318 |
* <code>MultiPixelPackedSampleModel</code> only has one band, the |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
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|
319 |
* bands argument must have a length of one and indicate the zeroth |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
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|
320 |
* band. |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
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|
321 |
* @param bands the specified bands |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
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|
322 |
* @return a new <code>SampleModel</code> with a subset of bands of |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
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|
323 |
* this <code>MultiPixelPackedSampleModel</code>. |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
324 |
* @exception RasterFormatException if the number of bands requested |
7952521a4ad3
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prr
parents:
diff
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|
325 |
* is not one. |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
326 |
* @throws IllegalArgumentException if <code>w</code> or |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
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|
327 |
* <code>h</code> is not greater than 0 |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
328 |
*/ |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
329 |
public SampleModel createSubsetSampleModel(int bands[]) { |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
330 |
if (bands != null) { |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
331 |
if (bands.length != 1) |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
332 |
throw new RasterFormatException("MultiPixelPackedSampleModel has " |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
333 |
+ "only one band."); |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
334 |
} |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
335 |
SampleModel sm = createCompatibleSampleModel(width, height); |
7952521a4ad3
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prr
parents:
diff
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|
336 |
return sm; |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
337 |
} |
7952521a4ad3
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prr
parents:
diff
changeset
|
338 |
|
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
339 |
/** |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
340 |
* Returns as <code>int</code> the sample in a specified band for the |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
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|
341 |
* pixel located at (x, y). An |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
342 |
* <code>ArrayIndexOutOfBoundsException</code> is thrown if the |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
343 |
* coordinates are not in bounds. |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
344 |
* @param x the X coordinate of the specified pixel |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
345 |
* @param y the Y coordinate of the specified pixel |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
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|
346 |
* @param b the band to return, which is assumed to be 0 |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
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diff
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|
347 |
* @param data the <code>DataBuffer</code> containing the image |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
348 |
* data |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
349 |
* @return the specified band containing the sample of the specified |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
350 |
* pixel. |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
351 |
* @exception ArrayIndexOutOfBoundException if the specified |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
352 |
* coordinates are not in bounds. |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
353 |
* @see #setSample(int, int, int, int, DataBuffer) |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
354 |
*/ |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
355 |
public int getSample(int x, int y, int b, DataBuffer data) { |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
356 |
// 'b' must be 0 |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
357 |
if ((x < 0) || (y < 0) || (x >= width) || (y >= height) || |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
358 |
(b != 0)) { |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
359 |
throw new ArrayIndexOutOfBoundsException |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
360 |
("Coordinate out of bounds!"); |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
361 |
} |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
362 |
int bitnum = dataBitOffset + x*pixelBitStride; |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
363 |
int element = data.getElem(y*scanlineStride + bitnum/dataElementSize); |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
364 |
int shift = dataElementSize - (bitnum & (dataElementSize-1)) |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
365 |
- pixelBitStride; |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
366 |
return (element >> shift) & bitMask; |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
367 |
} |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
368 |
|
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
369 |
/** |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
370 |
* Sets a sample in the specified band for the pixel located at |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
371 |
* (x, y) in the <code>DataBuffer</code> using an |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
372 |
* <code>int</code> for input. |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
373 |
* An <code>ArrayIndexOutOfBoundsException</code> is thrown if the |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
374 |
* coordinates are not in bounds. |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
375 |
* @param x the X coordinate of the specified pixel |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
376 |
* @param y the Y coordinate of the specified pixel |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
377 |
* @param b the band to return, which is assumed to be 0 |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
378 |
* @param s the input sample as an <code>int</code> |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
379 |
* @param data the <code>DataBuffer</code> where image data is stored |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
380 |
* @exception ArrayIndexOutOfBoundsException if the coordinates are |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
381 |
* not in bounds. |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
382 |
* @see #getSample(int, int, int, DataBuffer) |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
383 |
*/ |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
384 |
public void setSample(int x, int y, int b, int s, |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
385 |
DataBuffer data) { |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
386 |
// 'b' must be 0 |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
387 |
if ((x < 0) || (y < 0) || (x >= width) || (y >= height) || |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
388 |
(b != 0)) { |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
389 |
throw new ArrayIndexOutOfBoundsException |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
390 |
("Coordinate out of bounds!"); |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
391 |
} |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
392 |
int bitnum = dataBitOffset + x * pixelBitStride; |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
393 |
int index = y * scanlineStride + (bitnum / dataElementSize); |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
394 |
int shift = dataElementSize - (bitnum & (dataElementSize-1)) |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
395 |
- pixelBitStride; |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
396 |
int element = data.getElem(index); |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
397 |
element &= ~(bitMask << shift); |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
398 |
element |= (s & bitMask) << shift; |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
399 |
data.setElem(index,element); |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
400 |
} |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
401 |
|
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
402 |
/** |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
403 |
* Returns data for a single pixel in a primitive array of type |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
404 |
* TransferType. For a <code>MultiPixelPackedSampleModel</code>, |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
405 |
* the array has one element, and the type is the smallest of |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
406 |
* DataBuffer.TYPE_BYTE, DataBuffer.TYPE_USHORT, or DataBuffer.TYPE_INT |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
407 |
* that can hold a single pixel. Generally, <code>obj</code> |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
408 |
* should be passed in as <code>null</code>, so that the |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
409 |
* <code>Object</code> is created automatically and is the |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
410 |
* correct primitive data type. |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
411 |
* <p> |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
412 |
* The following code illustrates transferring data for one pixel from |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
413 |
* <code>DataBuffer</code> <code>db1</code>, whose storage layout is |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
414 |
* described by <code>MultiPixelPackedSampleModel</code> |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
415 |
* <code>mppsm1</code>, to <code>DataBuffer</code> <code>db2</code>, |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
416 |
* whose storage layout is described by |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
417 |
* <code>MultiPixelPackedSampleModel</code> <code>mppsm2</code>. |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
418 |
* The transfer is generally more efficient than using |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
419 |
* <code>getPixel</code> or <code>setPixel</code>. |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
420 |
* <pre> |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
421 |
* MultiPixelPackedSampleModel mppsm1, mppsm2; |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
422 |
* DataBufferInt db1, db2; |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
423 |
* mppsm2.setDataElements(x, y, mppsm1.getDataElements(x, y, null, |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
424 |
* db1), db2); |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
425 |
* </pre> |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
426 |
* Using <code>getDataElements</code> or <code>setDataElements</code> |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
427 |
* to transfer between two <code>DataBuffer/SampleModel</code> pairs |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
428 |
* is legitimate if the <code>SampleModels</code> have the same number |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
429 |
* of bands, corresponding bands have the same number of |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
430 |
* bits per sample, and the TransferTypes are the same. |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
431 |
* <p> |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
432 |
* If <code>obj</code> is not <code>null</code>, it should be a |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
433 |
* primitive array of type TransferType. Otherwise, a |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
434 |
* <code>ClassCastException</code> is thrown. An |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
435 |
* <code>ArrayIndexOutOfBoundsException</code> is thrown if the |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
436 |
* coordinates are not in bounds, or if <code>obj</code> is not |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
437 |
* <code>null</code> and is not large enough to hold the pixel data. |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
438 |
* @param x the X coordinate of the specified pixel |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
439 |
* @param y the Y coordinate of the specified pixel |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
440 |
* @param obj a primitive array in which to return the pixel data or |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
441 |
* <code>null</code>. |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
442 |
* @param data the <code>DataBuffer</code> containing the image data. |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
443 |
* @return an <code>Object</code> containing data for the specified |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
444 |
* pixel. |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
445 |
* @exception ClassCastException if <code>obj</code> is not a |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
446 |
* primitive array of type TransferType or is not <code>null</code> |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
447 |
* @exception ArrayIndexOutOfBoundsException if the coordinates are |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
448 |
* not in bounds, or if <code>obj</code> is not <code>null</code> or |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
449 |
* not large enough to hold the pixel data |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
450 |
* @see #setDataElements(int, int, Object, DataBuffer) |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
451 |
*/ |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
452 |
public Object getDataElements(int x, int y, Object obj, DataBuffer data) { |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
453 |
if ((x < 0) || (y < 0) || (x >= width) || (y >= height)) { |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
454 |
throw new ArrayIndexOutOfBoundsException |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
455 |
("Coordinate out of bounds!"); |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
456 |
} |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
457 |
|
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
458 |
int type = getTransferType(); |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
459 |
int bitnum = dataBitOffset + x*pixelBitStride; |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
460 |
int shift = dataElementSize - (bitnum & (dataElementSize-1)) |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
461 |
- pixelBitStride; |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
462 |
int element = 0; |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
463 |
|
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
464 |
switch(type) { |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
465 |
|
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
466 |
case DataBuffer.TYPE_BYTE: |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
467 |
|
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
468 |
byte[] bdata; |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
469 |
|
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
470 |
if (obj == null) |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
471 |
bdata = new byte[1]; |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
472 |
else |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
473 |
bdata = (byte[])obj; |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
474 |
|
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
475 |
element = data.getElem(y*scanlineStride + |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
476 |
bitnum/dataElementSize); |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
477 |
bdata[0] = (byte)((element >> shift) & bitMask); |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
478 |
|
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
479 |
obj = (Object)bdata; |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
480 |
break; |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
481 |
|
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
482 |
case DataBuffer.TYPE_USHORT: |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
483 |
|
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
484 |
short[] sdata; |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
485 |
|
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
486 |
if (obj == null) |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
487 |
sdata = new short[1]; |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
488 |
else |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
489 |
sdata = (short[])obj; |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
490 |
|
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
491 |
element = data.getElem(y*scanlineStride + |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
492 |
bitnum/dataElementSize); |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
493 |
sdata[0] = (short)((element >> shift) & bitMask); |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
494 |
|
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
495 |
obj = (Object)sdata; |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
496 |
break; |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
497 |
|
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
498 |
case DataBuffer.TYPE_INT: |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
499 |
|
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
500 |
int[] idata; |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
501 |
|
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
502 |
if (obj == null) |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
503 |
idata = new int[1]; |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
504 |
else |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
505 |
idata = (int[])obj; |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
506 |
|
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
507 |
element = data.getElem(y*scanlineStride + |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
508 |
bitnum/dataElementSize); |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
509 |
idata[0] = (element >> shift) & bitMask; |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
510 |
|
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
511 |
obj = (Object)idata; |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
512 |
break; |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
513 |
} |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
514 |
|
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
515 |
return obj; |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
516 |
} |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
517 |
|
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
518 |
/** |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
519 |
* Returns the specified single band pixel in the first element |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
520 |
* of an <code>int</code> array. |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
521 |
* <code>ArrayIndexOutOfBoundsException</code> is thrown if the |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
522 |
* coordinates are not in bounds. |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
523 |
* @param x the X coordinate of the specified pixel |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
524 |
* @param y the Y coordinate of the specified pixel |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
525 |
* @param iArray the array containing the pixel to be returned or |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
526 |
* <code>null</code> |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
527 |
* @param data the <code>DataBuffer</code> where image data is stored |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
528 |
* @return an array containing the specified pixel. |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
529 |
* @exception ArrayIndexOutOfBoundsException if the coordinates |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
530 |
* are not in bounds |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
531 |
* @see #setPixel(int, int, int[], DataBuffer) |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
532 |
*/ |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
533 |
public int[] getPixel(int x, int y, int iArray[], DataBuffer data) { |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
534 |
if ((x < 0) || (y < 0) || (x >= width) || (y >= height)) { |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
535 |
throw new ArrayIndexOutOfBoundsException |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
536 |
("Coordinate out of bounds!"); |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
537 |
} |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
538 |
int pixels[]; |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
539 |
if (iArray != null) { |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
540 |
pixels = iArray; |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
541 |
} else { |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
542 |
pixels = new int [numBands]; |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
543 |
} |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
544 |
int bitnum = dataBitOffset + x*pixelBitStride; |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
545 |
int element = data.getElem(y*scanlineStride + bitnum/dataElementSize); |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
546 |
int shift = dataElementSize - (bitnum & (dataElementSize-1)) |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
547 |
- pixelBitStride; |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
548 |
pixels[0] = (element >> shift) & bitMask; |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
549 |
return pixels; |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
550 |
} |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
551 |
|
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
552 |
/** |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
553 |
* Sets the data for a single pixel in the specified |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
554 |
* <code>DataBuffer</code> from a primitive array of type |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
555 |
* TransferType. For a <code>MultiPixelPackedSampleModel</code>, |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
556 |
* only the first element of the array holds valid data, |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
557 |
* and the type must be the smallest of |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
558 |
* DataBuffer.TYPE_BYTE, DataBuffer.TYPE_USHORT, or DataBuffer.TYPE_INT |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
559 |
* that can hold a single pixel. |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
560 |
* <p> |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
561 |
* The following code illustrates transferring data for one pixel from |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
562 |
* <code>DataBuffer</code> <code>db1</code>, whose storage layout is |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
563 |
* described by <code>MultiPixelPackedSampleModel</code> |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
564 |
* <code>mppsm1</code>, to <code>DataBuffer</code> <code>db2</code>, |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
565 |
* whose storage layout is described by |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
566 |
* <code>MultiPixelPackedSampleModel</code> <code>mppsm2</code>. |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
567 |
* The transfer is generally more efficient than using |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
568 |
* <code>getPixel</code> or <code>setPixel</code>. |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
569 |
* <pre> |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
570 |
* MultiPixelPackedSampleModel mppsm1, mppsm2; |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
571 |
* DataBufferInt db1, db2; |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
572 |
* mppsm2.setDataElements(x, y, mppsm1.getDataElements(x, y, null, |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
573 |
* db1), db2); |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
574 |
* </pre> |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
575 |
* Using <code>getDataElements</code> or <code>setDataElements</code> to |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
576 |
* transfer between two <code>DataBuffer/SampleModel</code> pairs is |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
577 |
* legitimate if the <code>SampleModel</code> objects have |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
578 |
* the same number of bands, corresponding bands have the same number of |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
579 |
* bits per sample, and the TransferTypes are the same. |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
580 |
* <p> |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
581 |
* <code>obj</code> must be a primitive array of type TransferType. |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
582 |
* Otherwise, a <code>ClassCastException</code> is thrown. An |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
583 |
* <code>ArrayIndexOutOfBoundsException</code> is thrown if the |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
584 |
* coordinates are not in bounds, or if <code>obj</code> is not large |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
585 |
* enough to hold the pixel data. |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
586 |
* @param x the X coordinate of the pixel location |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
587 |
* @param y the Y coordinate of the pixel location |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
588 |
* @param obj a primitive array containing pixel data |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
589 |
* @param data the <code>DataBuffer</code> containing the image data |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
590 |
* @see #getDataElements(int, int, Object, DataBuffer) |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
591 |
*/ |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
592 |
public void setDataElements(int x, int y, Object obj, DataBuffer data) { |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
593 |
if ((x < 0) || (y < 0) || (x >= width) || (y >= height)) { |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
594 |
throw new ArrayIndexOutOfBoundsException |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
595 |
("Coordinate out of bounds!"); |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
596 |
} |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
597 |
|
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
598 |
int type = getTransferType(); |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
599 |
int bitnum = dataBitOffset + x * pixelBitStride; |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
600 |
int index = y * scanlineStride + (bitnum / dataElementSize); |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
601 |
int shift = dataElementSize - (bitnum & (dataElementSize-1)) |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
602 |
- pixelBitStride; |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
603 |
int element = data.getElem(index); |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
604 |
element &= ~(bitMask << shift); |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
605 |
|
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
606 |
switch(type) { |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
607 |
|
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
608 |
case DataBuffer.TYPE_BYTE: |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
609 |
|
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
610 |
byte[] barray = (byte[])obj; |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
611 |
element |= ( ((int)(barray[0])&0xff) & bitMask) << shift; |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
612 |
data.setElem(index, element); |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
613 |
break; |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
614 |
|
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
615 |
case DataBuffer.TYPE_USHORT: |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
616 |
|
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
617 |
short[] sarray = (short[])obj; |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
618 |
element |= ( ((int)(sarray[0])&0xffff) & bitMask) << shift; |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
619 |
data.setElem(index, element); |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
620 |
break; |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
621 |
|
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
622 |
case DataBuffer.TYPE_INT: |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
623 |
|
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
624 |
int[] iarray = (int[])obj; |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
625 |
element |= (iarray[0] & bitMask) << shift; |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
626 |
data.setElem(index, element); |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
627 |
break; |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
628 |
} |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
629 |
} |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
630 |
|
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
631 |
/** |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
632 |
* Sets a pixel in the <code>DataBuffer</code> using an |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
633 |
* <code>int</code> array for input. |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
634 |
* <code>ArrayIndexOutOfBoundsException</code> is thrown if |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
635 |
* the coordinates are not in bounds. |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
636 |
* @param x the X coordinate of the pixel location |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
637 |
* @param y the Y coordinate of the pixel location |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
638 |
* @param iArray the input pixel in an <code>int</code> array |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
639 |
* @param data the <code>DataBuffer</code> containing the image data |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
640 |
* @see #getPixel(int, int, int[], DataBuffer) |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
641 |
*/ |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
642 |
public void setPixel(int x, int y, int[] iArray, DataBuffer data) { |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
643 |
if ((x < 0) || (y < 0) || (x >= width) || (y >= height)) { |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
644 |
throw new ArrayIndexOutOfBoundsException |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
645 |
("Coordinate out of bounds!"); |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
646 |
} |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
647 |
int bitnum = dataBitOffset + x * pixelBitStride; |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
648 |
int index = y * scanlineStride + (bitnum / dataElementSize); |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
649 |
int shift = dataElementSize - (bitnum & (dataElementSize-1)) |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
650 |
- pixelBitStride; |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
651 |
int element = data.getElem(index); |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
652 |
element &= ~(bitMask << shift); |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
653 |
element |= (iArray[0] & bitMask) << shift; |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
654 |
data.setElem(index,element); |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
655 |
} |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
656 |
|
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
657 |
public boolean equals(Object o) { |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
658 |
if ((o == null) || !(o instanceof MultiPixelPackedSampleModel)) { |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
659 |
return false; |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
660 |
} |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
661 |
|
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
662 |
MultiPixelPackedSampleModel that = (MultiPixelPackedSampleModel)o; |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
663 |
return this.width == that.width && |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
664 |
this.height == that.height && |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
665 |
this.numBands == that.numBands && |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
666 |
this.dataType == that.dataType && |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
667 |
this.pixelBitStride == that.pixelBitStride && |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
668 |
this.bitMask == that.bitMask && |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
669 |
this.pixelsPerDataElement == that.pixelsPerDataElement && |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
670 |
this.dataElementSize == that.dataElementSize && |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
671 |
this.dataBitOffset == that.dataBitOffset && |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
672 |
this.scanlineStride == that.scanlineStride; |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
673 |
} |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
674 |
|
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
675 |
// If we implement equals() we must also implement hashCode |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
676 |
public int hashCode() { |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
677 |
int hash = 0; |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
678 |
hash = width; |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
679 |
hash <<= 8; |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
680 |
hash ^= height; |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
681 |
hash <<= 8; |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
682 |
hash ^= numBands; |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
683 |
hash <<= 8; |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
684 |
hash ^= dataType; |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
685 |
hash <<= 8; |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
686 |
hash ^= pixelBitStride; |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
687 |
hash <<= 8; |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
688 |
hash ^= bitMask; |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
689 |
hash <<= 8; |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
690 |
hash ^= pixelsPerDataElement; |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
691 |
hash <<= 8; |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
692 |
hash ^= dataElementSize; |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
693 |
hash <<= 8; |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
694 |
hash ^= dataBitOffset; |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
695 |
hash <<= 8; |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
696 |
hash ^= scanlineStride; |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
697 |
return hash; |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
698 |
} |
7952521a4ad3
6662775: Move imaging and color classes from closed to open
prr
parents:
diff
changeset
|
699 |
} |