mirror of git://gcc.gnu.org/git/gcc.git
760 lines
26 KiB
Java
760 lines
26 KiB
Java
/* Copyright (C) 2004, 2005, 2006, Free Software Foundation
|
|
|
|
This file is part of GNU Classpath.
|
|
|
|
GNU Classpath is free software; you can redistribute it and/or modify
|
|
it under the terms of the GNU General Public License as published by
|
|
the Free Software Foundation; either version 2, or (at your option)
|
|
any later version.
|
|
|
|
GNU Classpath is distributed in the hope that it will be useful, but
|
|
WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
General Public License for more details.
|
|
|
|
You should have received a copy of the GNU General Public License
|
|
along with GNU Classpath; see the file COPYING. If not, write to the
|
|
Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
|
|
02110-1301 USA.
|
|
|
|
Linking this library statically or dynamically with other modules is
|
|
making a combined work based on this library. Thus, the terms and
|
|
conditions of the GNU General Public License cover the whole
|
|
combination.
|
|
|
|
As a special exception, the copyright holders of this library give you
|
|
permission to link this library with independent modules to produce an
|
|
executable, regardless of the license terms of these independent
|
|
modules, and to copy and distribute the resulting executable under
|
|
terms of your choice, provided that you also meet, for each linked
|
|
independent module, the terms and conditions of the license of that
|
|
module. An independent module is a module which is not derived from
|
|
or based on this library. If you modify this library, you may extend
|
|
this exception to your version of the library, but you are not
|
|
obligated to do so. If you do not wish to do so, delete this
|
|
exception statement from your version. */
|
|
|
|
package java.awt.image;
|
|
|
|
import gnu.java.awt.Buffers;
|
|
import gnu.java.lang.CPStringBuilder;
|
|
|
|
/**
|
|
* A sample model that reads each sample value from a separate band in the
|
|
* {@link DataBuffer}.
|
|
*
|
|
* @author Jerry Quinn (jlquinn@optonline.net)
|
|
*/
|
|
public final class BandedSampleModel extends ComponentSampleModel
|
|
{
|
|
private int[] bitMasks;
|
|
private int[] bitOffsets;
|
|
private int[] sampleSize;
|
|
private int dataBitOffset;
|
|
private int elemBits;
|
|
private int numberOfBits;
|
|
private int numElems;
|
|
|
|
private static int[] createBankArray(int size)
|
|
{
|
|
int[] result = new int[size];
|
|
for (int i = 0; i < size; i++)
|
|
result[i] = i;
|
|
return result;
|
|
}
|
|
|
|
/**
|
|
* Creates a new <code>BandedSampleModel</code>.
|
|
*
|
|
* @param dataType the data buffer type.
|
|
* @param w the width (in pixels).
|
|
* @param h the height (in pixels).
|
|
* @param numBands the number of bands.
|
|
*/
|
|
public BandedSampleModel(int dataType, int w, int h, int numBands)
|
|
{
|
|
this(dataType, w, h, w, createBankArray(numBands), new int[numBands]);
|
|
}
|
|
|
|
/**
|
|
* Creates a new <code>BandedSampleModel</code>.
|
|
*
|
|
* @param dataType the data buffer type.
|
|
* @param w the width (in pixels).
|
|
* @param h the height (in pixels).
|
|
* @param scanlineStride the number of data elements from a pixel in one
|
|
* row to the corresponding pixel in the next row.
|
|
* @param bankIndices the bank indices.
|
|
* @param bandOffsets the band offsets.
|
|
*/
|
|
public BandedSampleModel(int dataType, int w, int h, int scanlineStride,
|
|
int[] bankIndices, int[] bandOffsets)
|
|
{
|
|
super(dataType, w, h, 1, scanlineStride, bankIndices, bandOffsets);
|
|
}
|
|
|
|
/**
|
|
* Creates a new data buffer that is compatible with this sample model.
|
|
*
|
|
* @return The new data buffer.
|
|
*/
|
|
public DataBuffer createDataBuffer()
|
|
{
|
|
int size = scanlineStride * height;
|
|
return Buffers.createBuffer(getDataType(), size, numBanks);
|
|
}
|
|
|
|
/**
|
|
* Creates a new <code>SampleModel</code> that is compatible with this
|
|
* model and has the specified width and height.
|
|
*
|
|
* @param w the width (in pixels, must be greater than zero).
|
|
* @param h the height (in pixels, must be greater than zero).
|
|
*
|
|
* @return The new sample model.
|
|
*
|
|
* @throws IllegalArgumentException if <code>w</code> or <code>h</code> is
|
|
* not greater than zero.
|
|
* @throws IllegalArgumentException if <code>w * h</code> exceeds
|
|
* <code>Integer.MAX_VALUE</code>.
|
|
*/
|
|
public SampleModel createCompatibleSampleModel(int w, int h)
|
|
{
|
|
// NOTE: blackdown 1.4.1 sets all offsets to 0. Sun's 1.4.2 docs
|
|
// disagree.
|
|
|
|
// Compress offsets so minimum is 0, others w*scanlineStride
|
|
int[] newoffsets = new int[bandOffsets.length];
|
|
int[] order = new int[bandOffsets.length];
|
|
for (int i = 0; i < bandOffsets.length; i++)
|
|
order[i] = i;
|
|
// FIXME: This is N^2, but not a big issue, unless there's a lot of
|
|
// bands...
|
|
for (int i = 0; i < bandOffsets.length; i++)
|
|
for (int j = i + 1; j < bandOffsets.length; j++)
|
|
if (bankIndices[order[i]] > bankIndices[order[j]]
|
|
|| (bankIndices[order[i]] == bankIndices[order[j]]
|
|
&& bandOffsets[order[i]] > bandOffsets[order[j]]))
|
|
{
|
|
int t = order[i]; order[i] = order[j]; order[j] = t;
|
|
}
|
|
int bank = 0;
|
|
int offset = 0;
|
|
for (int i = 0; i < bandOffsets.length; i++)
|
|
{
|
|
if (bankIndices[order[i]] != bank)
|
|
{
|
|
bank = bankIndices[order[i]];
|
|
offset = 0;
|
|
}
|
|
newoffsets[order[i]] = offset;
|
|
offset += w * scanlineStride;
|
|
}
|
|
|
|
return new BandedSampleModel(dataType, w, h, w, bankIndices, newoffsets);
|
|
}
|
|
|
|
|
|
public SampleModel createSubsetSampleModel(int[] bands)
|
|
{
|
|
if (bands.length > bankIndices.length)
|
|
throw new
|
|
RasterFormatException("BandedSampleModel createSubsetSampleModel too"
|
|
+" many bands");
|
|
int[] newoff = new int[bands.length];
|
|
int[] newbanks = new int[bands.length];
|
|
for (int i = 0; i < bands.length; i++)
|
|
{
|
|
int b = bands[i];
|
|
newoff[i] = bandOffsets[b];
|
|
newbanks[i] = bankIndices[b];
|
|
}
|
|
|
|
return new BandedSampleModel(dataType, width, height, scanlineStride,
|
|
newbanks, newoff);
|
|
}
|
|
|
|
/**
|
|
* Extract all samples of one pixel and return in an array of transfer type.
|
|
*
|
|
* Extracts the pixel at x, y from data and stores samples into the array
|
|
* obj. If obj is null, a new array of getTransferType() is created.
|
|
*
|
|
* @param x The x-coordinate of the pixel rectangle to store in
|
|
* <code>obj</code>.
|
|
* @param y The y-coordinate of the pixel rectangle to store in
|
|
* <code>obj</code>.
|
|
* @param obj The primitive array to store the pixels into or null to force
|
|
* creation.
|
|
* @param data The DataBuffer that is the source of the pixel data.
|
|
* @return The primitive array containing the pixel data.
|
|
* @see java.awt.image.SampleModel#getDataElements(int, int,
|
|
* java.lang.Object, java.awt.image.DataBuffer)
|
|
*/
|
|
public Object getDataElements(int x, int y, Object obj, DataBuffer data)
|
|
{
|
|
if (x < 0 || y < 0)
|
|
throw new ArrayIndexOutOfBoundsException(
|
|
"x and y must not be less than 0.");
|
|
int pixel = getSample(x, y, 0, data);
|
|
switch (getTransferType())
|
|
{
|
|
case DataBuffer.TYPE_BYTE:
|
|
{
|
|
byte[] b = (byte[]) obj;
|
|
if (b == null) b = new byte[numBands];
|
|
for (int i = 0; i < numBands; i++)
|
|
b[i] = (byte)getSample(x, y, i, data);
|
|
return b;
|
|
}
|
|
case DataBuffer.TYPE_SHORT:
|
|
case DataBuffer.TYPE_USHORT:
|
|
{
|
|
short[] b = (short[]) obj;
|
|
if (b == null) b = new short[numBands];
|
|
for (int i = 0; i < numBands; i++)
|
|
b[i] = (short)getSample(x, y, i, data);
|
|
return b;
|
|
}
|
|
case DataBuffer.TYPE_INT:
|
|
{
|
|
int[] b = (int[]) obj;
|
|
if (b == null) b = new int[numBands];
|
|
for (int i = 0; i < numBands; i++)
|
|
b[i] = getSample(x, y, i, data);
|
|
return b;
|
|
}
|
|
case DataBuffer.TYPE_FLOAT:
|
|
{
|
|
float[] b = (float[]) obj;
|
|
if (b == null) b = new float[numBands];
|
|
for (int i = 0; i < numBands; i++)
|
|
b[i] = getSampleFloat(x, y, i, data);
|
|
return b;
|
|
}
|
|
case DataBuffer.TYPE_DOUBLE:
|
|
{
|
|
double[] b = (double[]) obj;
|
|
if (b == null)
|
|
b = new double[numBands];
|
|
for (int i = 0; i < numBands; i++)
|
|
b[i] = getSample(x, y, i, data);
|
|
return b;
|
|
}
|
|
|
|
default:
|
|
// Seems like the only sensible thing to do.
|
|
throw new ClassCastException();
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Returns all the samples for the pixel at location <code>(x, y)</code>
|
|
* stored in the specified data buffer.
|
|
*
|
|
* @param x the x-coordinate.
|
|
* @param y the y-coordinate.
|
|
* @param iArray an array that will be populated with the sample values and
|
|
* returned as the result. The size of this array should be equal to the
|
|
* number of bands in the model. If the array is <code>null</code>, a new
|
|
* array is created.
|
|
* @param data the data buffer (<code>null</code> not permitted).
|
|
*
|
|
* @return The samples for the specified pixel.
|
|
*
|
|
* @see #setPixel(int, int, int[], DataBuffer)
|
|
*/
|
|
public int[] getPixel(int x, int y, int[] iArray, DataBuffer data)
|
|
{
|
|
if (iArray == null)
|
|
iArray = new int[numBands];
|
|
for (int i = 0; i < numBands; i++)
|
|
iArray[i] = getSample(x, y, i, data);
|
|
|
|
return iArray;
|
|
}
|
|
|
|
/**
|
|
* Copy pixels from a region into an array.
|
|
*
|
|
* Copies the samples of the pixels in the rectangle starting at x, y that
|
|
* is w pixels wide and h scanlines high. When there is more than one band,
|
|
* the samples stored in order before the next pixel. This ordering isn't
|
|
* well specified in Sun's docs as of 1.4.2.
|
|
*
|
|
* If iArray is null, a new array is allocated, filled, and returned.
|
|
*
|
|
* @param x The x-coordinate of the pixel rectangle to store in
|
|
* <code>iArray</code>.
|
|
* @param y The y-coordinate of the pixel rectangle to store in
|
|
* <code>iArray</code>.
|
|
* @param w The width in pixels of the rectangle.
|
|
* @param h The height in pixels of the rectangle.
|
|
* @param iArray The int array to store the pixels into or null to force
|
|
* creation.
|
|
* @param data The DataBuffer that is the source of the pixel data.
|
|
* @return The primitive array containing the pixel data.
|
|
*/
|
|
public int[] getPixels(int x, int y, int w, int h, int[] iArray,
|
|
DataBuffer data)
|
|
{
|
|
if (x < 0 || y < 0)
|
|
throw new ArrayIndexOutOfBoundsException(
|
|
"x and y must not be less than 0.");
|
|
if (iArray == null)
|
|
iArray = new int[w * h * numBands];
|
|
int outOffset = 0;
|
|
int maxX = x + w;
|
|
int maxY = y + h;
|
|
for (int yy = x; yy < maxY; yy++)
|
|
{
|
|
for (int xx = x; xx < maxX; xx++)
|
|
{
|
|
for (int b = 0; b < numBands; b++)
|
|
{
|
|
int offset = bandOffsets[b] + yy * scanlineStride + xx;
|
|
iArray[outOffset++] =
|
|
data.getElem(bankIndices[b], offset);
|
|
}
|
|
}
|
|
}
|
|
return iArray;
|
|
}
|
|
|
|
/**
|
|
* Returns a sample value for the pixel at (x, y) in the specified data
|
|
* buffer.
|
|
*
|
|
* @param x the x-coordinate of the pixel.
|
|
* @param y the y-coordinate of the pixel.
|
|
* @param b the band (in the range <code>0</code> to
|
|
* <code>getNumBands() - 1</code>).
|
|
* @param data the data buffer (<code>null</code> not permitted).
|
|
*
|
|
* @return The sample value.
|
|
*
|
|
* @throws NullPointerException if <code>data</code> is <code>null</code>.
|
|
*/
|
|
public int getSample(int x, int y, int b, DataBuffer data)
|
|
{
|
|
int offset = bandOffsets[b] + y * scanlineStride + x;
|
|
return data.getElem(bankIndices[b], offset);
|
|
}
|
|
|
|
/**
|
|
* Returns a sample value for the pixel at (x, y) in the specified data
|
|
* buffer.
|
|
*
|
|
* @param x the x-coordinate of the pixel.
|
|
* @param y the y-coordinate of the pixel.
|
|
* @param b the band (in the range <code>0</code> to
|
|
* <code>getNumBands() - 1</code>).
|
|
* @param data the data buffer (<code>null</code> not permitted).
|
|
*
|
|
* @return The sample value.
|
|
*
|
|
* @throws NullPointerException if <code>data</code> is <code>null</code>.
|
|
*
|
|
* @see #getSample(int, int, int, DataBuffer)
|
|
*/
|
|
public float getSampleFloat(int x, int y, int b, DataBuffer data)
|
|
{
|
|
int offset = bandOffsets[b] + y * scanlineStride + x;
|
|
return data.getElemFloat(bankIndices[b], offset);
|
|
}
|
|
|
|
/**
|
|
* Returns the sample value for the pixel at (x, y) in the specified data
|
|
* buffer.
|
|
*
|
|
* @param x the x-coordinate of the pixel.
|
|
* @param y the y-coordinate of the pixel.
|
|
* @param b the band (in the range <code>0</code> to
|
|
* <code>getNumBands() - 1</code>).
|
|
* @param data the data buffer (<code>null</code> not permitted).
|
|
*
|
|
* @return The sample value.
|
|
*
|
|
* @throws NullPointerException if <code>data</code> is <code>null</code>.
|
|
*
|
|
* @see #getSample(int, int, int, DataBuffer)
|
|
*/
|
|
public double getSampleDouble(int x, int y, int b, DataBuffer data)
|
|
{
|
|
int offset = bandOffsets[b] + y * scanlineStride + x;
|
|
return data.getElemDouble(bankIndices[b], offset);
|
|
}
|
|
|
|
/**
|
|
* Copy one band's samples from a region into an array.
|
|
*
|
|
* Copies from one band the samples of the pixels in the rectangle starting
|
|
* at x, y that is w pixels wide and h scanlines high.
|
|
*
|
|
* If iArray is null, a new array is allocated, filled, and returned.
|
|
*
|
|
* @param x The x-coordinate of the pixel rectangle to store in
|
|
* <code>iArray</code>.
|
|
* @param y The y-coordinate of the pixel rectangle to store in
|
|
* <code>iArray</code>.
|
|
* @param w The width in pixels of the rectangle.
|
|
* @param h The height in pixels of the rectangle.
|
|
* @param b The band to retrieve.
|
|
* @param iArray The int array to store the pixels into or null to force
|
|
* creation.
|
|
* @param data The DataBuffer that is the source of the pixel data.
|
|
* @return The primitive array containing the pixel data.
|
|
*/
|
|
public int[] getSamples(int x, int y, int w, int h, int b, int[] iArray,
|
|
DataBuffer data)
|
|
{
|
|
if (x < 0 || y < 0)
|
|
throw new ArrayIndexOutOfBoundsException(
|
|
"x and y must not be less than 0.");
|
|
if (iArray == null)
|
|
iArray = new int[w * h];
|
|
int outOffset = 0;
|
|
int maxX = x + w;
|
|
int maxY = y + h;
|
|
for (int yy = y; yy < maxY; yy++)
|
|
{
|
|
for (int xx = x; xx < maxX; xx++)
|
|
{
|
|
int offset = bandOffsets[b] + yy * scanlineStride + xx;
|
|
iArray[outOffset++] =
|
|
data.getElem(bankIndices[b], offset);
|
|
}
|
|
}
|
|
return iArray;
|
|
}
|
|
|
|
/**
|
|
* Set the pixel at x, y to the value in the first element of the primitive
|
|
* array obj.
|
|
*
|
|
* @param x The x-coordinate of the data elements in <code>obj</code>.
|
|
* @param y The y-coordinate of the data elements in <code>obj</code>.
|
|
* @param obj The primitive array containing the data elements to set.
|
|
* @param data The DataBuffer to store the data elements into.
|
|
* @see java.awt.image.SampleModel#setDataElements(int, int, int, int, java.lang.Object, java.awt.image.DataBuffer)
|
|
*/
|
|
public void setDataElements(int x, int y, Object obj, DataBuffer data)
|
|
{
|
|
int transferType = getTransferType();
|
|
if (getTransferType() != data.getDataType())
|
|
{
|
|
throw new IllegalArgumentException("transfer type ("+
|
|
getTransferType()+"), "+
|
|
"does not match data "+
|
|
"buffer type (" +
|
|
data.getDataType() +
|
|
").");
|
|
}
|
|
|
|
int offset = y * scanlineStride + x;
|
|
|
|
try
|
|
{
|
|
switch (transferType)
|
|
{
|
|
case DataBuffer.TYPE_BYTE:
|
|
{
|
|
DataBufferByte out = (DataBufferByte) data;
|
|
byte[] in = (byte[]) obj;
|
|
for (int i = 0; i < numBands; i++)
|
|
out.getData(bankIndices[i])[offset + bandOffsets[i]] = in[i];
|
|
return;
|
|
}
|
|
case DataBuffer.TYPE_SHORT:
|
|
{
|
|
DataBufferShort out = (DataBufferShort) data;
|
|
short[] in = (short[]) obj;
|
|
for (int i = 0; i < numBands; i++)
|
|
out.getData(bankIndices[i])[offset + bandOffsets[i]] = in[i];
|
|
return;
|
|
}
|
|
case DataBuffer.TYPE_USHORT:
|
|
{
|
|
DataBufferUShort out = (DataBufferUShort) data;
|
|
short[] in = (short[]) obj;
|
|
for (int i = 0; i < numBands; i++)
|
|
out.getData(bankIndices[i])[offset + bandOffsets[i]] = in[i];
|
|
return;
|
|
}
|
|
case DataBuffer.TYPE_INT:
|
|
{
|
|
DataBufferInt out = (DataBufferInt) data;
|
|
int[] in = (int[]) obj;
|
|
for (int i = 0; i < numBands; i++)
|
|
out.getData(bankIndices[i])[offset + bandOffsets[i]] = in[i];
|
|
return;
|
|
}
|
|
case DataBuffer.TYPE_FLOAT:
|
|
{
|
|
DataBufferFloat out = (DataBufferFloat) data;
|
|
float[] in = (float[]) obj;
|
|
for (int i = 0; i < numBands; i++)
|
|
out.getData(bankIndices[i])[offset + bandOffsets[i]] = in[i];
|
|
return;
|
|
}
|
|
case DataBuffer.TYPE_DOUBLE:
|
|
{
|
|
DataBufferDouble out = (DataBufferDouble) data;
|
|
double[] in = (double[]) obj;
|
|
for (int i = 0; i < numBands; i++)
|
|
out.getData(bankIndices[i])[offset + bandOffsets[i]] = in[i];
|
|
return;
|
|
}
|
|
default:
|
|
throw new ClassCastException("Unsupported data type");
|
|
}
|
|
}
|
|
catch (ArrayIndexOutOfBoundsException aioobe)
|
|
{
|
|
String msg = "While writing data elements"
|
|
+ ", x=" + x + ", y=" + y
|
|
+ ", width=" + width + ", height=" + height
|
|
+ ", scanlineStride=" + scanlineStride
|
|
+ ", offset=" + offset
|
|
+ ", data.getSize()=" + data.getSize()
|
|
+ ", data.getOffset()=" + data.getOffset()
|
|
+ ": " + aioobe;
|
|
throw new ArrayIndexOutOfBoundsException(msg);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Sets the samples for the pixel at (x, y) in the specified data buffer to
|
|
* the specified values.
|
|
*
|
|
* @param x the x-coordinate of the pixel.
|
|
* @param y the y-coordinate of the pixel.
|
|
* @param iArray the sample values (<code>null</code> not permitted).
|
|
* @param data the data buffer (<code>null</code> not permitted).
|
|
*
|
|
* @throws NullPointerException if either <code>iArray</code> or
|
|
* <code>data</code> is <code>null</code>.
|
|
*/
|
|
public void setPixel(int x, int y, int[] iArray, DataBuffer data)
|
|
{
|
|
for (int b = 0; b < numBands; b++)
|
|
data.setElem(bankIndices[b], bandOffsets[b] + y * scanlineStride + x,
|
|
iArray[b]);
|
|
}
|
|
|
|
/**
|
|
* Sets the sample values for the pixels in the region specified by
|
|
* (x, y, w, h) in the specified data buffer. The array is
|
|
* ordered by pixels (that is, all the samples for the first pixel are
|
|
* grouped together, followed by all the samples for the second pixel, and so
|
|
* on).
|
|
*
|
|
* @param x the x-coordinate of the top-left pixel.
|
|
* @param y the y-coordinate of the top-left pixel.
|
|
* @param w the width of the region of pixels.
|
|
* @param h the height of the region of pixels.
|
|
* @param iArray the pixel sample values (<code>null</code> not permitted).
|
|
* @param data the data buffer (<code>null</code> not permitted).
|
|
*
|
|
* @throws NullPointerException if either <code>iArray</code> or
|
|
* <code>data</code> is <code>null</code>.
|
|
*/
|
|
public void setPixels(int x, int y, int w, int h, int[] iArray,
|
|
DataBuffer data)
|
|
{
|
|
int inOffset = 0;
|
|
for (int hh = 0; hh < h; hh++)
|
|
{
|
|
for (int ww = 0; ww < w; ww++)
|
|
{
|
|
int offset = y * scanlineStride + (x + ww);
|
|
for (int b = 0; b < numBands; b++)
|
|
data.setElem(bankIndices[b], bandOffsets[b] + offset,
|
|
iArray[inOffset++]);
|
|
}
|
|
y++;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Sets the sample value for band <code>b</code> of the pixel at location
|
|
* <code>(x, y)</code> in the specified data buffer.
|
|
*
|
|
* @param x the x-coordinate.
|
|
* @param y the y-coordinate.
|
|
* @param b the band index.
|
|
* @param s the sample value.
|
|
* @param data the data buffer (<code>null</code> not permitted).
|
|
*
|
|
* @see #getSample(int, int, int, DataBuffer)
|
|
*/
|
|
public void setSample(int x, int y, int b, int s, DataBuffer data)
|
|
{
|
|
data.setElem(bankIndices[b], bandOffsets[b] + y * scanlineStride + x, s);
|
|
}
|
|
|
|
/**
|
|
* Sets the sample value for a band for the pixel at (x, y) in the
|
|
* specified data buffer.
|
|
*
|
|
* @param x the x-coordinate of the pixel.
|
|
* @param y the y-coordinate of the pixel.
|
|
* @param b the band (in the range <code>0</code> to
|
|
* <code>getNumBands() - 1</code>).
|
|
* @param s the sample value.
|
|
* @param data the data buffer (<code>null</code> not permitted).
|
|
*
|
|
* @throws NullPointerException if <code>data</code> is <code>null</code>.
|
|
*/
|
|
public void setSample(int x, int y, int b, float s, DataBuffer data)
|
|
{
|
|
data.setElemFloat(bankIndices[b], bandOffsets[b] + y * scanlineStride + x,
|
|
s);
|
|
}
|
|
|
|
/**
|
|
* Sets the sample value for a band for the pixel at (x, y) in the
|
|
* specified data buffer.
|
|
*
|
|
* @param x the x-coordinate of the pixel.
|
|
* @param y the y-coordinate of the pixel.
|
|
* @param b the band (in the range <code>0</code> to
|
|
* <code>getNumBands() - 1</code>).
|
|
* @param s the sample value.
|
|
* @param data the data buffer (<code>null</code> not permitted).
|
|
*
|
|
* @throws NullPointerException if <code>data</code> is <code>null</code>.
|
|
*/
|
|
public void setSample(int x, int y, int b, double s, DataBuffer data)
|
|
{
|
|
data.setElemDouble(bankIndices[b], bandOffsets[b] + y * scanlineStride + x,
|
|
s);
|
|
}
|
|
|
|
/**
|
|
* Sets the sample values for one band for the pixels in the region
|
|
* specified by (x, y, w, h) in the specified data buffer.
|
|
*
|
|
* @param x the x-coordinate of the top-left pixel.
|
|
* @param y the y-coordinate of the top-left pixel.
|
|
* @param w the width of the region of pixels.
|
|
* @param h the height of the region of pixels.
|
|
* @param b the band (in the range <code>0</code> to
|
|
* </code>getNumBands() - 1</code>).
|
|
* @param iArray the sample values (<code>null</code> not permitted).
|
|
* @param data the data buffer (<code>null</code> not permitted).
|
|
*
|
|
* @throws NullPointerException if either <code>iArray</code> or
|
|
* <code>data</code> is <code>null</code>.
|
|
*/
|
|
public void setSamples(int x, int y, int w, int h, int b, int[] iArray,
|
|
DataBuffer data)
|
|
{
|
|
if (x < 0 || y < 0)
|
|
throw new ArrayIndexOutOfBoundsException(
|
|
"x and y must not be less than 0.");
|
|
int inOffset = 0;
|
|
|
|
switch (getTransferType())
|
|
{
|
|
case DataBuffer.TYPE_BYTE:
|
|
{
|
|
DataBufferByte out = (DataBufferByte) data;
|
|
byte[] bank = out.getData(bankIndices[b]);
|
|
for (int hh = 0; hh < h; hh++)
|
|
{
|
|
for (int ww = 0; ww < w; ww++)
|
|
{
|
|
int offset = bandOffsets[b] + y * scanlineStride + (x + ww);
|
|
bank[offset] = (byte)iArray[inOffset++];
|
|
}
|
|
y++;
|
|
}
|
|
return;
|
|
}
|
|
case DataBuffer.TYPE_SHORT:
|
|
{
|
|
DataBufferShort out = (DataBufferShort) data;
|
|
short[] bank = out.getData(bankIndices[b]);
|
|
for (int hh = 0; hh < h; hh++)
|
|
{
|
|
for (int ww = 0; ww < w; ww++)
|
|
{
|
|
int offset = bandOffsets[b] + y * scanlineStride + (x + ww);
|
|
bank[offset] = (short)iArray[inOffset++];
|
|
}
|
|
y++;
|
|
}
|
|
return;
|
|
}
|
|
case DataBuffer.TYPE_USHORT:
|
|
{
|
|
DataBufferShort out = (DataBufferShort) data;
|
|
short[] bank = out.getData(bankIndices[b]);
|
|
for (int hh = 0; hh < h; hh++)
|
|
{
|
|
for (int ww = 0; ww < w; ww++)
|
|
{
|
|
int offset = bandOffsets[b] + y * scanlineStride + (x + ww);
|
|
bank[offset] = (short)iArray[inOffset++];
|
|
}
|
|
y++;
|
|
}
|
|
return;
|
|
}
|
|
case DataBuffer.TYPE_INT:
|
|
{
|
|
DataBufferInt out = (DataBufferInt) data;
|
|
int[] bank = out.getData(bankIndices[b]);
|
|
for (int hh = 0; hh < h; hh++)
|
|
{
|
|
for (int ww = 0; ww < w; ww++)
|
|
{
|
|
int offset = bandOffsets[b] + y * scanlineStride + (x + ww);
|
|
bank[offset] = iArray[inOffset++];
|
|
}
|
|
y++;
|
|
}
|
|
return;
|
|
}
|
|
case DataBuffer.TYPE_FLOAT:
|
|
case DataBuffer.TYPE_DOUBLE:
|
|
break;
|
|
default:
|
|
throw new ClassCastException("Unsupported data type");
|
|
}
|
|
|
|
// Default implementation probably slower for float and double
|
|
for (int hh = 0; hh < h; hh++)
|
|
{
|
|
for (int ww = 0; ww < w; ww++)
|
|
{
|
|
int offset = bandOffsets[b] + y * scanlineStride + (x + ww);
|
|
data.setElem(bankIndices[b], offset, iArray[inOffset++]);
|
|
}
|
|
y++;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Creates a String with some information about this SampleModel.
|
|
* @return A String describing this SampleModel.
|
|
* @see java.lang.Object#toString()
|
|
*/
|
|
public String toString()
|
|
{
|
|
CPStringBuilder result = new CPStringBuilder();
|
|
result.append(getClass().getName());
|
|
result.append("[");
|
|
result.append("scanlineStride=").append(scanlineStride);
|
|
for(int i = 0; i < bitMasks.length; i+=1)
|
|
{
|
|
result.append(", mask[").append(i).append("]=0x").append(
|
|
Integer.toHexString(bitMasks[i]));
|
|
}
|
|
|
|
result.append("]");
|
|
return result.toString();
|
|
}
|
|
}
|