/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
/**
* @author Igor V. Stolyarov
* @version $Revision$
*/
package java.awt.image;
import java.awt.Point;
import java.awt.Rectangle;
import org.apache.harmony.awt.gl.image.OrdinaryWritableRaster;
import org.apache.harmony.awt.internal.nls.Messages;
/**
* The Raster class represents a rectangular area of pixels. This class is
* defined by DataBuffer and SampleModel objects. The DataBuffer object stores
* sample values and DSampleModel defines the location of sample in this
* DataBuffer.
*
* @since Android 1.0
*/
public class Raster {
/**
* The DataBuffer of this Raster.
*/
protected DataBuffer dataBuffer;
/**
* The height of this Raster.
*/
protected int height;
/**
* The X coordinate of the upper left pixel in this Raster.
*/
protected int minX;
/**
* The Y coordinate of the upper left pixel in this Raster.
*/
protected int minY;
/**
* The number of bands in this Raster.
*/
protected int numBands;
/**
* The number of data elements.
*/
protected int numDataElements;
/**
* The parent of this Raster.
*/
protected Raster parent;
/**
* The SampleModel of this Raster.
*/
protected SampleModel sampleModel;
/**
* The X translation from the coordinate space of the SampleModel of this
* Raster.
*/
protected int sampleModelTranslateX;
/**
* The Y translation from the coordinate space of the SampleModel of this
* Raster.
*/
protected int sampleModelTranslateY;
/**
* The width of this Raster.
*/
protected int width;
/**
* Creates a Raster object with a BandedSampleModel and the specified
* DataBuffer. The number of bands is defined by the length of bandOffsets
* or bankIndices arrays.
*
* @param dataBuffer
* the specified DataBuffer.
* @param w
* the width of the image data.
* @param h
* the height of the image data.
* @param scanlineStride
* the scanline stride of the image data.
* @param bankIndices
* the bank indices of bands.
* @param bandOffsets
* the band offsets of bands.
* @param location
* the location which defines the upper left corner of Raster.
* @return the WritableRaster object.
*/
public static WritableRaster createBandedRaster(DataBuffer dataBuffer, int w, int h,
int scanlineStride, int bankIndices[], int bandOffsets[], Point location) {
if (w <= 0 || h <= 0) {
// awt.22E=w or h is less than or equal to zero
throw new RasterFormatException(Messages.getString("awt.22E")); //$NON-NLS-1$
}
if (location == null) {
location = new Point(0, 0);
}
if ((long)location.x + w > Integer.MAX_VALUE || (long)location.y + h > Integer.MAX_VALUE) {
// awt.276=location.x + w or location.y + h results in integer
// overflow
throw new RasterFormatException(Messages.getString("awt.276")); //$NON-NLS-1$
}
if (bankIndices == null || bandOffsets == null) {
// awt.277=bankIndices or bandOffsets is null
throw new ArrayIndexOutOfBoundsException(Messages.getString("awt.277")); //$NON-NLS-1$
}
if (dataBuffer == null) {
// awt.278=dataBuffer is null
throw new NullPointerException(Messages.getString("awt.278")); //$NON-NLS-1$
}
int dataType = dataBuffer.getDataType();
if (dataType != DataBuffer.TYPE_BYTE && dataType != DataBuffer.TYPE_USHORT
&& dataType != DataBuffer.TYPE_INT) {
// awt.230=dataType is not one of the supported data types
throw new IllegalArgumentException(Messages.getString("awt.230")); //$NON-NLS-1$
}
BandedSampleModel sampleModel = new BandedSampleModel(dataType, w, h, scanlineStride,
bankIndices, bandOffsets);
return new OrdinaryWritableRaster(sampleModel, dataBuffer, location);
}
/**
* Creates a Raster object with a BandedSampleModel and the specified data
* type. The Data type can be one of the following values: TYPE_BYTE,
* TYPE_USHORT, or TYPE_INT.
*
* @param dataType
* the data type of the samples: TYPE_BYTE, TYPE_USHORT, or
* TYPE_INT.
* @param w
* the width of the image data.
* @param h
* the height of the image data.
* @param scanlineStride
* the scanline stride of the image data.
* @param bankIndices
* the bank indices of bands.
* @param bandOffsets
* the band offsets of bands.
* @param location
* the location which defines the upper left corner of the
* Raster.
* @return the WritableRaster object.
*/
public static WritableRaster createBandedRaster(int dataType, int w, int h, int scanlineStride,
int bankIndices[], int bandOffsets[], Point location) {
if (w <= 0 || h <= 0) {
// awt.22E=w or h is less than or equal to zero
throw new RasterFormatException(Messages.getString("awt.22E")); //$NON-NLS-1$
}
if (location == null) {
location = new Point(0, 0);
}
if ((long)location.x + w > Integer.MAX_VALUE || (long)location.y + h > Integer.MAX_VALUE) {
// awt.276=location.x + w or location.y + h results in integer
// overflow
throw new RasterFormatException(Messages.getString("awt.276")); //$NON-NLS-1$
}
if (bankIndices == null || bandOffsets == null) {
// awt.277=bankIndices or bandOffsets is null
throw new ArrayIndexOutOfBoundsException(Messages.getString("awt.277")); //$NON-NLS-1$
}
if (dataType != DataBuffer.TYPE_BYTE && dataType != DataBuffer.TYPE_USHORT
&& dataType != DataBuffer.TYPE_INT) {
// awt.230=dataType is not one of the supported data types
throw new IllegalArgumentException(Messages.getString("awt.230")); //$NON-NLS-1$
}
int maxOffset = bandOffsets[0];
int maxBank = bankIndices[0];
for (int i = 0; i < bankIndices.length; i++) {
if (bandOffsets[i] > maxOffset) {
maxOffset = bandOffsets[i];
}
if (bankIndices[i] > maxBank) {
maxBank = bankIndices[i];
}
}
int numBanks = maxBank + 1;
int dataSize = scanlineStride * (h - 1) + w + maxOffset;
DataBuffer data = null;
switch (dataType) {
case DataBuffer.TYPE_BYTE:
data = new DataBufferByte(dataSize, numBanks);
break;
case DataBuffer.TYPE_USHORT:
data = new DataBufferUShort(dataSize, numBanks);
break;
case DataBuffer.TYPE_INT:
data = new DataBufferInt(dataSize, numBanks);
break;
}
return createBandedRaster(data, w, h, scanlineStride, bankIndices, bandOffsets, location);
}
/**
* Creates a Raster object with a BandedSampleModel and the specified data
* type. The Data type can be one of the following values: TYPE_BYTE,
* TYPE_USHORT, or TYPE_INT.
*
* @param dataType
* the data type of the samples: TYPE_BYTE, TYPE_USHORT, or
* TYPE_INT.
* @param w
* the width of the image data.
* @param h
* the height of the image data.
* @param bands
* the number of bands.
* @param location
* the location which defines the upper left corner of the
* Raster.
* @return the WritableRaster object.
*/
public static WritableRaster createBandedRaster(int dataType, int w, int h, int bands,
Point location) {
if (w <= 0 || h <= 0) {
// awt.22E=w or h is less than or equal to zero
throw new RasterFormatException(Messages.getString("awt.22E")); //$NON-NLS-1$
}
if (location == null) {
location = new Point(0, 0);
}
if ((long)location.x + w > Integer.MAX_VALUE || (long)location.y + h > Integer.MAX_VALUE) {
// awt.276=location.x + w or location.y + h results in integer
// overflow
throw new RasterFormatException(Messages.getString("awt.276")); //$NON-NLS-1$
}
if (bands < 1) {
// awt.279=bands is less than 1
throw new ArrayIndexOutOfBoundsException(Messages.getString("awt.279")); //$NON-NLS-1$
}
int bandOffsets[] = new int[bands];
int bankIndices[] = new int[bands];
for (int i = 0; i < bands; i++) {
bandOffsets[i] = 0;
bankIndices[i] = i;
}
return createBandedRaster(dataType, w, h, w, bankIndices, bandOffsets, location);
}
/**
* Creates a Raster object with a PixelInterleavedSampleModel and the
* specified DataBuffer.
*
* @param dataBuffer
* the DataBuffer.
* @param w
* the width of image data.
* @param h
* the height of image data.
* @param scanlineStride
* the scanline stride of the image data.
* @param pixelStride
* the pixel stride of image data.
* @param bandOffsets
* the band offsets of bands.
* @param location
* the location which defines the upper left corner of the
* Raster.
* @return the WritableRaster object.
*/
public static WritableRaster createInterleavedRaster(DataBuffer dataBuffer, int w, int h,
int scanlineStride, int pixelStride, int bandOffsets[], Point location) {
if (w <= 0 || h <= 0) {
// awt.22E=w or h is less than or equal to zero
throw new RasterFormatException(Messages.getString("awt.22E")); //$NON-NLS-1$
}
if (location == null) {
location = new Point(0, 0);
}
if ((long)location.x + w > Integer.MAX_VALUE || (long)location.y + h > Integer.MAX_VALUE) {
// awt.276=location.x + w or location.y + h results in integer
// overflow
throw new RasterFormatException(Messages.getString("awt.276")); //$NON-NLS-1$
}
if (dataBuffer == null) {
// awt.278=dataBuffer is null
throw new NullPointerException(Messages.getString("awt.278")); //$NON-NLS-1$
}
int dataType = dataBuffer.getDataType();
if (dataType != DataBuffer.TYPE_BYTE && dataType != DataBuffer.TYPE_USHORT) {
// awt.230=dataType is not one of the supported data types
throw new IllegalArgumentException(Messages.getString("awt.230")); //$NON-NLS-1$
}
if (dataBuffer.getNumBanks() > 1) {
// awt.27A=dataBuffer has more than one bank
throw new RasterFormatException(Messages.getString("awt.27A")); //$NON-NLS-1$
}
if (bandOffsets == null) {
// awt.27B=bandOffsets is null
throw new NullPointerException(Messages.getString("awt.27B")); //$NON-NLS-1$
}
PixelInterleavedSampleModel sampleModel = new PixelInterleavedSampleModel(dataType, w, h,
pixelStride, scanlineStride, bandOffsets);
return new OrdinaryWritableRaster(sampleModel, dataBuffer, location);
}
/**
* Creates a Raster object with a PixelInterleavedSampleModel and the
* specified data type. The Data type can be one of the following values:
* TYPE_BYTE, TYPE_USHORT, or TYPE_INT.
*
* @param dataType
* the data type of the samples: TYPE_BYTE, TYPE_USHORT, or
* TYPE_INT.
* @param w
* the width of image data.
* @param h
* the height of image data.
* @param scanlineStride
* the scanline stride of the image data.
* @param pixelStride
* the pixel stride of image data.
* @param bandOffsets
* the band offsets of bands.
* @param location
* the location which defines the upper left corner of the
* Raster.
* @return the WritableRaster object.
*/
public static WritableRaster createInterleavedRaster(int dataType, int w, int h,
int scanlineStride, int pixelStride, int bandOffsets[], Point location) {
if (w <= 0 || h <= 0) {
// awt.22E=w or h is less than or equal to zero
throw new RasterFormatException(Messages.getString("awt.22E")); //$NON-NLS-1$
}
if (location == null) {
location = new Point(0, 0);
}
if ((long)location.x + w > Integer.MAX_VALUE || (long)location.y + h > Integer.MAX_VALUE) {
// awt.276=location.x + w or location.y + h results in integer
// overflow
throw new RasterFormatException(Messages.getString("awt.276")); //$NON-NLS-1$
}
if (dataType != DataBuffer.TYPE_BYTE && dataType != DataBuffer.TYPE_USHORT) {
// awt.230=dataType is not one of the supported data types
throw new IllegalArgumentException(Messages.getString("awt.230")); //$NON-NLS-1$
}
if (bandOffsets == null) {
// awt.27B=bandOffsets is null
throw new NullPointerException(Messages.getString("awt.27B")); //$NON-NLS-1$
}
int minOffset = bandOffsets[0];
for (int i = 1; i < bandOffsets.length; i++) {
if (bandOffsets[i] < minOffset) {
minOffset = bandOffsets[i];
}
}
int size = (h - 1) * scanlineStride + w * pixelStride + minOffset;
DataBuffer data = null;
switch (dataType) {
case DataBuffer.TYPE_BYTE:
data = new DataBufferByte(size);
break;
case DataBuffer.TYPE_USHORT:
data = new DataBufferUShort(size);
break;
}
return createInterleavedRaster(data, w, h, scanlineStride, pixelStride, bandOffsets,
location);
}
/**
* Creates a Raster object with a PixelInterleavedSampleModel and the
* specified data type. The Data type can be one of the following values:
* TYPE_BYTE, TYPE_USHORT, or TYPE_INT.
*
* @param dataType
* the data type of samples: TYPE_BYTE, TYPE_USHORT, or TYPE_INT.
* @param w
* the width of image data.
* @param h
* the height of image data.
* @param bands
* the number of bands.
* @param location
* the location which defines the upper left corner of the
* Raster.
* @return the WritableRaster.
*/
public static WritableRaster createInterleavedRaster(int dataType, int w, int h, int bands,
Point location) {
if (w <= 0 || h <= 0) {
// awt.22E=w or h is less than or equal to zero
throw new RasterFormatException(Messages.getString("awt.22E")); //$NON-NLS-1$
}
if (location == null) {
location = new Point(0, 0);
}
if ((long)location.x + w > Integer.MAX_VALUE || (long)location.y + h > Integer.MAX_VALUE) {
// awt.276=location.x + w or location.y + h results in integer
// overflow
throw new RasterFormatException(Messages.getString("awt.276")); //$NON-NLS-1$
}
if (dataType != DataBuffer.TYPE_BYTE && dataType != DataBuffer.TYPE_USHORT) {
// awt.230=dataType is not one of the supported data types
throw new IllegalArgumentException(Messages.getString("awt.230")); //$NON-NLS-1$
}
int bandOffsets[] = new int[bands];
for (int i = 0; i < bands; i++) {
bandOffsets[i] = i;
}
return createInterleavedRaster(dataType, w, h, w * bands, bands, bandOffsets, location);
}
/**
* Creates a Raster object with a SinglePixelPackedSampleModel and the
* specified DataBuffer.
*
* @param dataBuffer
* the DataBuffer.
* @param w
* the width of the image data.
* @param h
* the height of the image data.
* @param scanlineStride
* the scanline stride of the image data.
* @param bandMasks
* the band masks.
* @param location
* the location which defines the upper left corner of the
* Raster.
* @return the WritableRaster.
*/
public static WritableRaster createPackedRaster(DataBuffer dataBuffer, int w, int h,
int scanlineStride, int bandMasks[], Point location) {
if (dataBuffer == null) {
// awt.278=dataBuffer is null
throw new NullPointerException(Messages.getString("awt.278")); //$NON-NLS-1$
}
if (w <= 0 || h <= 0) {
// awt.22E=w or h is less than or equal to zero
throw new RasterFormatException(Messages.getString("awt.22E")); //$NON-NLS-1$
}
if (location == null) {
location = new Point(0, 0);
}
if ((long)location.x + w > Integer.MAX_VALUE || (long)location.y + h > Integer.MAX_VALUE) {
// awt.276=location.x + w or location.y + h results in integer
// overflow
throw new RasterFormatException(Messages.getString("awt.276")); //$NON-NLS-1$
}
if (bandMasks == null) {
// awt.27C=bandMasks is null
throw new RasterFormatException(Messages.getString("awt.27C")); //$NON-NLS-1$
}
if (dataBuffer.getNumBanks() > 1) {
// awt.27A=dataBuffer has more than one bank
throw new RasterFormatException(Messages.getString("awt.27A")); //$NON-NLS-1$
}
int dataType = dataBuffer.getDataType();
if (dataType != DataBuffer.TYPE_BYTE && dataType != DataBuffer.TYPE_USHORT
&& dataType != DataBuffer.TYPE_INT) {
// awt.230=dataType is not one of the supported data types
throw new IllegalArgumentException(Messages.getString("awt.230")); //$NON-NLS-1$
}
SinglePixelPackedSampleModel sampleModel = new SinglePixelPackedSampleModel(dataType, w, h,
scanlineStride, bandMasks);
return new OrdinaryWritableRaster(sampleModel, dataBuffer, location);
}
/**
* Creates a Raster object with a MultiPixelPackedSampleModel and the
* specified DataBuffer.
*
* @param dataBuffer
* the DataBuffer.
* @param w
* the width of the image data.
* @param h
* the height of the image data.
* @param bitsPerPixel
* the number of bits per pixel.
* @param location
* the location which defines the upper left corner of the
* Raster.
* @return the WritableRaster.
*/
public static WritableRaster createPackedRaster(DataBuffer dataBuffer, int w, int h,
int bitsPerPixel, Point location) {
if (w <= 0 || h <= 0) {
// awt.22E=w or h is less than or equal to zero
throw new RasterFormatException(Messages.getString("awt.22E")); //$NON-NLS-1$
}
if (location == null) {
location = new Point(0, 0);
}
if ((long)location.x + w > Integer.MAX_VALUE || (long)location.y + h > Integer.MAX_VALUE) {
// awt.276=location.x + w or location.y + h results in integer
// overflow
throw new RasterFormatException(Messages.getString("awt.276")); //$NON-NLS-1$
}
if (dataBuffer == null) {
// awt.278=dataBuffer is null
throw new NullPointerException(Messages.getString("awt.278")); //$NON-NLS-1$
}
if (dataBuffer.getNumBanks() > 1) {
// awt.27A=dataBuffer has more than one bank
throw new RasterFormatException(Messages.getString("awt.27A")); //$NON-NLS-1$
}
int dataType = dataBuffer.getDataType();
if (dataType != DataBuffer.TYPE_BYTE && dataType != DataBuffer.TYPE_USHORT
&& dataType != DataBuffer.TYPE_INT) {
// awt.230=dataType is not one of the supported data types
throw new IllegalArgumentException(Messages.getString("awt.230")); //$NON-NLS-1$
}
MultiPixelPackedSampleModel sampleModel = new MultiPixelPackedSampleModel(dataType, w, h,
bitsPerPixel);
return new OrdinaryWritableRaster(sampleModel, dataBuffer, location);
}
/**
* Creates a Raster object with a MultiPixelPackedSampleModel and the
* specified DataBuffer.
*
* @param dataType
* the data type of samples: TYPE_BYTE, TYPE_USHORT, or TYPE_INT.
* @param w
* the width of the image data.
* @param h
* the height of the image data.
* @param bands
* the number of bands.
* @param bitsPerBand
* the number of bits per band.
* @param location
* the location which defines the upper left corner of the
* Raster.
* @return the WritableRaster.
*/
public static WritableRaster createPackedRaster(int dataType, int w, int h, int bands,
int bitsPerBand, Point location) {
if (w <= 0 || h <= 0) {
// awt.22E=w or h is less than or equal to zero
throw new RasterFormatException(Messages.getString("awt.22E")); //$NON-NLS-1$
}
if (location == null) {
location = new Point(0, 0);
}
if ((long)location.x + w > Integer.MAX_VALUE || (long)location.y + h > Integer.MAX_VALUE) {
// awt.276=location.x + w or location.y + h results in integer
// overflow
throw new RasterFormatException(Messages.getString("awt.276")); //$NON-NLS-1$
}
if (bands < 1 || bitsPerBand < 1) {
// awt.27D=bitsPerBand or bands is not greater than zero
throw new IllegalArgumentException(Messages.getString("awt.27D")); //$NON-NLS-1$
}
if (dataType != DataBuffer.TYPE_BYTE && dataType != DataBuffer.TYPE_USHORT
&& dataType != DataBuffer.TYPE_INT) {
// awt.230=dataType is not one of the supported data types
throw new IllegalArgumentException(Messages.getString("awt.230")); //$NON-NLS-1$
}
if (bitsPerBand * bands > DataBuffer.getDataTypeSize(dataType)) {
// awt.27E=The product of bitsPerBand and bands is greater than the
// number of bits held by dataType
throw new IllegalArgumentException(Messages.getString("awt.27E")); //$NON-NLS-1$
}
if (bands > 1) {
int bandMasks[] = new int[bands];
int mask = (1 << bitsPerBand) - 1;
for (int i = 0; i < bands; i++) {
bandMasks[i] = mask << (bitsPerBand * (bands - 1 - i));
}
return createPackedRaster(dataType, w, h, bandMasks, location);
}
DataBuffer data = null;
int size = ((bitsPerBand * w + DataBuffer.getDataTypeSize(dataType) - 1) / DataBuffer
.getDataTypeSize(dataType))
* h;
switch (dataType) {
case DataBuffer.TYPE_BYTE:
data = new DataBufferByte(size);
break;
case DataBuffer.TYPE_USHORT:
data = new DataBufferUShort(size);
break;
case DataBuffer.TYPE_INT:
data = new DataBufferInt(size);
break;
}
return createPackedRaster(data, w, h, bitsPerBand, location);
}
/**
* Creates a Raster object with a SinglePixelPackedSampleModel and the
* specified DataBuffer.
*
* @param dataType
* the data type of samples: TYPE_BYTE, TYPE_USHORT, or TYPE_INT.
* @param w
* the width of the image data.
* @param h
* the height of the image data.
* @param bandMasks
* the band masks.
* @param location
* the location which defines the upper left corner of the
* Raster.
* @return the WritableRaster.
*/
public static WritableRaster createPackedRaster(int dataType, int w, int h, int bandMasks[],
Point location) {
if (dataType != DataBuffer.TYPE_BYTE && dataType != DataBuffer.TYPE_USHORT
&& dataType != DataBuffer.TYPE_INT) {
// awt.230=dataType is not one of the supported data types
throw new IllegalArgumentException(Messages.getString("awt.230")); //$NON-NLS-1$
}
if (w <= 0 || h <= 0) {
// awt.22E=w or h is less than or equal to zero
throw new RasterFormatException(Messages.getString("awt.22E")); //$NON-NLS-1$
}
if (location == null) {
location = new Point(0, 0);
}
if ((long)location.x + w > Integer.MAX_VALUE || (long)location.y + h > Integer.MAX_VALUE) {
// awt.276=location.x + w or location.y + h results in integer
// overflow
throw new RasterFormatException(Messages.getString("awt.276")); //$NON-NLS-1$
}
if (bandMasks == null) {
// awt.27C=bandMasks is null
throw new NullPointerException(Messages.getString("awt.27C")); //$NON-NLS-1$
}
DataBuffer data = null;
switch (dataType) {
case DataBuffer.TYPE_BYTE:
data = new DataBufferByte(w * h);
break;
case DataBuffer.TYPE_USHORT:
data = new DataBufferUShort(w * h);
break;
case DataBuffer.TYPE_INT:
data = new DataBufferInt(w * h);
break;
}
return createPackedRaster(data, w, h, w, bandMasks, location);
}
/**
* Creates a Raster object with the specified DataBuffer and SampleModel.
*
* @param sm
* the specified SampleModel.
* @param db
* the specified DataBuffer.
* @param location
* the location which defines the upper left corner of the
* Raster.
* @return the Raster.
*/
public static Raster createRaster(SampleModel sm, DataBuffer db, Point location) {
if (sm == null || db == null) {
// awt.27F=SampleModel or DataBuffer is null
throw new NullPointerException(Messages.getString("awt.27F")); //$NON-NLS-1$
}
if (location == null) {
location = new Point(0, 0);
}
return new Raster(sm, db, location);
}
/**
* Creates a WritableRaster with the specified SampleModel and DataBuffer.
*
* @param sm
* the specified SampleModel.
* @param db
* the specified DataBuffer.
* @param location
* the location which defines the upper left corner of the
* Raster.
* @return the WritableRaster.
*/
public static WritableRaster createWritableRaster(SampleModel sm, DataBuffer db, Point location) {
if (sm == null || db == null) {
// awt.27F=SampleModel or DataBuffer is null
throw new NullPointerException(Messages.getString("awt.27F")); //$NON-NLS-1$
}
if (location == null) {
location = new Point(0, 0);
}
return new OrdinaryWritableRaster(sm, db, location);
}
/**
* Creates a WritableRaster with the specified SampleModel.
*
* @param sm
* the specified SampleModel.
* @param location
* the location which defines the upper left corner of the
* Raster.
* @return the WritableRaster.
*/
public static WritableRaster createWritableRaster(SampleModel sm, Point location) {
if (sm == null) {
// awt.280=SampleModel is null
throw new NullPointerException(Messages.getString("awt.280")); //$NON-NLS-1$
}
if (location == null) {
location = new Point(0, 0);
}
return createWritableRaster(sm, sm.createDataBuffer(), location);
}
/**
* Instantiates a new Raster object with the specified SampleModel and
* DataBuffer.
*
* @param sampleModel
* the specified SampleModel.
* @param dataBuffer
* the specified DataBuffer.
* @param origin
* the specified origin.
*/
protected Raster(SampleModel sampleModel, DataBuffer dataBuffer, Point origin) {
this(sampleModel, dataBuffer, new Rectangle(origin.x, origin.y, sampleModel.getWidth(),
sampleModel.getHeight()), origin, null);
}
/**
* Instantiates a new Raster object with the specified SampleModel,
* DataBuffer, rectangular region and parent Raster.
*
* @param sampleModel
* the specified SampleModel.
* @param dataBuffer
* the specified DataBuffer.
* @param aRegion
* the a rectangular region which defines the new image bounds.
* @param sampleModelTranslate
* this point defines the translation point from the SampleModel
* coordinates to the new Raster coordinates.
* @param parent
* the parent of this Raster.
*/
protected Raster(SampleModel sampleModel, DataBuffer dataBuffer, Rectangle aRegion,
Point sampleModelTranslate, Raster parent) {
if (sampleModel == null || dataBuffer == null || aRegion == null
|| sampleModelTranslate == null) {
// awt.281=sampleModel, dataBuffer, aRegion or sampleModelTranslate
// is null
throw new NullPointerException(Messages.getString("awt.281")); //$NON-NLS-1$
}
if (aRegion.width <= 0 || aRegion.height <= 0) {
// awt.282=aRegion has width or height less than or equal to zero
throw new RasterFormatException(Messages.getString("awt.282")); //$NON-NLS-1$
}
if ((long)aRegion.x + (long)aRegion.width > Integer.MAX_VALUE) {
// awt.283=Overflow X coordinate of Raster
throw new RasterFormatException(Messages.getString("awt.283")); //$NON-NLS-1$
}
if ((long)aRegion.y + (long)aRegion.height > Integer.MAX_VALUE) {
// awt.284=Overflow Y coordinate of Raster
throw new RasterFormatException(Messages.getString("awt.284")); //$NON-NLS-1$
}
if (sampleModel instanceof ComponentSampleModel) {
validateDataBuffer(dataBuffer, aRegion.width, aRegion.height,
((ComponentSampleModel)sampleModel).getScanlineStride());
} else if (sampleModel instanceof MultiPixelPackedSampleModel) {
validateDataBuffer(dataBuffer, aRegion.width, aRegion.height,
((MultiPixelPackedSampleModel)sampleModel).getScanlineStride());
} else if (sampleModel instanceof SinglePixelPackedSampleModel) {
validateDataBuffer(dataBuffer, aRegion.width, aRegion.height,
((SinglePixelPackedSampleModel)sampleModel).getScanlineStride());
}
this.sampleModel = sampleModel;
this.dataBuffer = dataBuffer;
this.minX = aRegion.x;
this.minY = aRegion.y;
this.width = aRegion.width;
this.height = aRegion.height;
this.sampleModelTranslateX = sampleModelTranslate.x;
this.sampleModelTranslateY = sampleModelTranslate.y;
this.parent = parent;
this.numBands = sampleModel.getNumBands();
this.numDataElements = sampleModel.getNumDataElements();
}
/**
* Instantiates a new Raster with the specified SampleModel.
*
* @param sampleModel
* the specified SampleModel.
* @param origin
* the origin.
*/
protected Raster(SampleModel sampleModel, Point origin) {
this(sampleModel, sampleModel.createDataBuffer(), new Rectangle(origin.x, origin.y,
sampleModel.getWidth(), sampleModel.getHeight()), origin, null);
}
/**
* Creates the child of this Raster by sharing the specified rectangular
* area in this raster. The parentX, parentY, width and height parameters
* specify the rectangular area to be shared.
*
* @param parentX
* the X coordinate of the upper left corner of this Raster.
* @param parentY
* the Y coordinate of the upper left corner of this Raster.
* @param width
* the width of the child area.
* @param height
* the height of the child area.
* @param childMinX
* the X coordinate of child area mapped to the parentX
* coordinate.
* @param childMinY
* the Y coordinate of child area mapped to the parentY
* coordinate.
* @param bandList
* the array of band indices.
* @return the Raster.
*/
public Raster createChild(int parentX, int parentY, int width, int height, int childMinX,
int childMinY, int bandList[]) {
if (width <= 0 || height <= 0) {
// awt.285=Width or Height of child Raster is less than or equal to
// zero
throw new RasterFormatException(Messages.getString("awt.285")); //$NON-NLS-1$
}
if (parentX < this.minX || parentX + width > this.minX + this.width) {
// awt.286=parentX disposes outside Raster
throw new RasterFormatException(Messages.getString("awt.286")); //$NON-NLS-1$
}
if (parentY < this.minY || parentY + height > this.minY + this.height) {
// awt.287=parentY disposes outside Raster
throw new RasterFormatException(Messages.getString("awt.287")); //$NON-NLS-1$
}
if ((long)parentX + width > Integer.MAX_VALUE) {
// awt.288=parentX + width results in integer overflow
throw new RasterFormatException(Messages.getString("awt.288")); //$NON-NLS-1$
}
if ((long)parentY + height > Integer.MAX_VALUE) {
// awt.289=parentY + height results in integer overflow
throw new RasterFormatException(Messages.getString("awt.289")); //$NON-NLS-1$
}
if ((long)childMinX + width > Integer.MAX_VALUE) {
// awt.28A=childMinX + width results in integer overflow
throw new RasterFormatException(Messages.getString("awt.28A")); //$NON-NLS-1$
}
if ((long)childMinY + height > Integer.MAX_VALUE) {
// awt.28B=childMinY + height results in integer overflow
throw new RasterFormatException(Messages.getString("awt.28B")); //$NON-NLS-1$
}
SampleModel childModel;
if (bandList == null) {
childModel = sampleModel;
} else {
childModel = sampleModel.createSubsetSampleModel(bandList);
}
int childTranslateX = childMinX - parentX;
int childTranslateY = childMinY - parentY;
return new Raster(childModel, dataBuffer,
new Rectangle(childMinX, childMinY, width, height), new Point(childTranslateX
+ sampleModelTranslateX, childTranslateY + sampleModelTranslateY), this);
}
/**
* Create a compatible WritableRaster with the same parameters as this
* Raster.
*
* @return the WritableRaster.
*/
public WritableRaster createCompatibleWritableRaster() {
return new OrdinaryWritableRaster(sampleModel, new Point(0, 0));
}
/**
* Create a compatible WritableRaster with the same parameters as this
* Raster and the specified size.
*
* @param w
* the width of the new WritableRaster.
* @param h
* the height of the new WritableRaster.
* @return the WritableRaster.
*/
public WritableRaster createCompatibleWritableRaster(int w, int h) {
if (w <= 0 || h <= 0) {
// awt.22E=w or h is less than or equal to zero
throw new RasterFormatException(Messages.getString("awt.22E")); //$NON-NLS-1$
}
SampleModel sm = sampleModel.createCompatibleSampleModel(w, h);
return new OrdinaryWritableRaster(sm, new Point(0, 0));
}
/**
* Create a compatible WritableRaster with the same parameters as this
* Raster and the specified size and location.
*
* @param x
* the X coordinate of the new WritableRaster.
* @param y
* the Y coordinate of the new WritableRaster.
* @param w
* the width of the new WritableRaster.
* @param h
* the height of the new WritableRaster.
* @return the WritableRaster.
*/
public WritableRaster createCompatibleWritableRaster(int x, int y, int w, int h) {
WritableRaster raster = createCompatibleWritableRaster(w, h);
return raster.createWritableChild(0, 0, w, h, x, y, null);
}
/**
* Create a compatible WritableRaster with the same parameters as this
* Raster and the specified rectangle which determines new WritableRaster's
* location and size.
*
* @param rect
* the specified Rectangle.
* @return the WritableRaster.
*/
public WritableRaster createCompatibleWritableRaster(Rectangle rect) {
if (rect == null) {
// awt.28C=Rect is null
throw new NullPointerException(Messages.getString("awt.28C")); //$NON-NLS-1$
}
return createCompatibleWritableRaster(rect.x, rect.y, rect.width, rect.height);
}
/**
* Creates the translated child of this Raster. The New Raster object is a
* reference to the this Raster with a different location.
*
* @param childMinX
* the X coordinate of the new Raster.
* @param childMinY
* the Y coordinate of the new Raster.
* @return the Raster.
*/
public Raster createTranslatedChild(int childMinX, int childMinY) {
return createChild(minX, minY, width, height, childMinX, childMinY, null);
}
/**
* Gets the bounds of this Raster as a rectangle.
*
* @return the bounds of this Raster.
*/
public Rectangle getBounds() {
return new Rectangle(minX, minY, width, height);
}
/**
* Gets the DataBuffer associated with this Raster.
*
* @return the DataBuffer associated with this Raster.
*/
public DataBuffer getDataBuffer() {
return dataBuffer;
}
/**
* Gets the data elements which represent the pixel data of the specified
* rectangle area as a primitive array. The following image data types are
* supported: DataBuffer.TYPE_BYTE, DataBuffer.TYPE_USHORT,
* DataBuffer.TYPE_INT, DataBuffer.TYPE_SHORT, DataBuffer.TYPE_FLOAT, or
* DataBuffer.TYPE_DOUBLE.
*
* @param x
* the X coordinate of the area of pixels.
* @param y
* the Y coordinate of the area of pixels.
* @param w
* the width of the area of pixels.
* @param h
* the height of the area of pixels.
* @param outData
* the resulting array.
* @return the data elements of the specified area of this Raster.
*/
public Object getDataElements(int x, int y, int w, int h, Object outData) {
return sampleModel.getDataElements(x - sampleModelTranslateX, y - sampleModelTranslateY, w,
h, outData, dataBuffer);
}
/**
* Gets the data elements which represent the specified pixel of this Raster
* as a primitive array. The following image data types are supported:
* DataBuffer.TYPE_BYTE, DataBuffer.TYPE_USHORT, DataBuffer.TYPE_INT,
* DataBuffer.TYPE_SHORT, DataBuffer.TYPE_FLOAT, or DataBuffer.TYPE_DOUBLE.
*
* @param x
* the X coordinate of the pixel.
* @param y
* the Y coordinate of the pixel.
* @param outData
* the resulting data.
* @return the data elements of the specified pixel of this Raster.
*/
public Object getDataElements(int x, int y, Object outData) {
return sampleModel.getDataElements(x - sampleModelTranslateX, y - sampleModelTranslateY,
outData, dataBuffer);
}
/**
* Gets the height of this Raster.
*
* @return the height of this Raster.
*/
public final int getHeight() {
return height;
}
/**
* Gets the minimum X coordinate of this Raster.
*
* @return the minimum X coordinate of this Raster.
*/
public final int getMinX() {
return minX;
}
/**
* Gets the minimum Y coordinate of this Raster.
*
* @return the minimum Y coordinate of this Raster.
*/
public final int getMinY() {
return minY;
}
/**
* Gets the number of bands in this Raster.
*
* @return the number of bands in this Raster.
*/
public final int getNumBands() {
return numBands;
}
/**
* Gets the number of data elements for one pixel.
*
* @return the number of data elements for one pixel.
*/
public final int getNumDataElements() {
return numDataElements;
}
/**
* Gets the parent Raster for this Raster object.
*
* @return the parent Raster for this Raster object.
*/
public Raster getParent() {
return parent;
}
/**
* Gets a double array of samples for the specified pixel in this Raster.
*
* @param x
* the pixel's X coordinate.
* @param y
* the pixel's Y coordinate.
* @param dArray
* the double array where result array will be stored.
* @return the double array of samples for the specified pixel in this
* Raster.
*/
public double[] getPixel(int x, int y, double dArray[]) {
return sampleModel.getPixel(x - sampleModelTranslateX, y - sampleModelTranslateY, dArray,
dataBuffer);
}
/**
* Gets a float array of samples for the specified pixel in this Raster.
*
* @param x
* the pixel's X coordinate.
* @param y
* the pixel's Y coordinate.
* @param fArray
* the float array where the result array will be stored.
* @return the float array of samples for the specified pixel in this
* Raster.
*/
public float[] getPixel(int x, int y, float fArray[]) {
return sampleModel.getPixel(x - sampleModelTranslateX, y - sampleModelTranslateY, fArray,
dataBuffer);
}
/**
* Gets an integer array of samples for the specified pixel in this Raster.
*
* @param x
* the pixel's X coordinate.
* @param y
* the pixel's Y coordinate.
* @param iArray
* the integer array where the result array will be stored.
* @return the integer array of samples for the specified pixel in this
* Raster.
*/
public int[] getPixel(int x, int y, int iArray[]) {
return sampleModel.getPixel(x - sampleModelTranslateX, y - sampleModelTranslateY, iArray,
dataBuffer);
}
/**
* Gets an double array of samples for the specified rectangular area of
* pixels in this Raster.
*
* @param x
* the X coordinate of the area of pixels.
* @param y
* the Y coordinate of the area of pixels.
* @param w
* the width of the area of pixels.
* @param h
* the height of the area of pixels.
* @param dArray
* the resulting array.
* @return the double array of samples for the specified rectangular area of
* pixels in this Raster.
*/
public double[] getPixels(int x, int y, int w, int h, double dArray[]) {
return sampleModel.getPixels(x - sampleModelTranslateX, y - sampleModelTranslateY, w, h,
dArray, dataBuffer);
}
/**
* Gets an float array of samples for the specified rectangular area of
* pixels in this Raster.
*
* @param x
* the X coordinate of the area of pixels.
* @param y
* the Y coordinate of the area of pixels.
* @param w
* the width of the area of pixels.
* @param h
* the height of the area of pixels.
* @param fArray
* the resulting array.
* @return the float array of samples for the specified rectangular area of
* pixels in this Raster.
*/
public float[] getPixels(int x, int y, int w, int h, float fArray[]) {
return sampleModel.getPixels(x - sampleModelTranslateX, y - sampleModelTranslateY, w, h,
fArray, dataBuffer);
}
/**
* Gets an integer array of samples for the specified rectangular area of
* pixels in this raster.
*
* @param x
* the X coordinate of the area of pixels.
* @param y
* the Y coordinate of the area of pixels.
* @param w
* the width of pixel's the area of pixels.
* @param h
* the height of pixel's the area of pixels.
* @param iArray
* the resulting array.
* @return the integer array of samples for the specified rectangular area
* of pixels in this Raster.
*/
public int[] getPixels(int x, int y, int w, int h, int iArray[]) {
return sampleModel.getPixels(x - sampleModelTranslateX, y - sampleModelTranslateY, w, h,
iArray, dataBuffer);
}
/**
* Gets the sample for the specified band of the specified pixel as an
* integer.
*
* @param x
* the X coordinate of the pixel.
* @param y
* the Y coordinate of the pixel.
* @param b
* the band.
* @return the sample for the specified band of the specified pixel as an
* integer.
*/
public int getSample(int x, int y, int b) {
return sampleModel.getSample(x - sampleModelTranslateX, y - sampleModelTranslateY, b,
dataBuffer);
}
/**
* Gets the sample for the specified band of the specified pixel as a
* double.
*
* @param x
* the X coordinate of the pixel.
* @param y
* the Y coordinate of the pixel.
* @param b
* the band.
* @return the sample for the specified band of the specified pixel as a
* double.
*/
public double getSampleDouble(int x, int y, int b) {
return sampleModel.getSampleDouble(x - sampleModelTranslateX, y - sampleModelTranslateY, b,
dataBuffer);
}
/**
* Gets the sample for the specified band of the specified pixel as a float.
*
* @param x
* the X coordinate of the pixel.
* @param y
* the Y coordinate of the pixel.
* @param b
* the band.
* @return the sample for the specified band of the specified pixel as a
* float.
*/
public float getSampleFloat(int x, int y, int b) {
return sampleModel.getSampleFloat(x - sampleModelTranslateX, y - sampleModelTranslateY, b,
dataBuffer);
}
/**
* Gets the SampleModel associated with this Raster.
*
* @return the SampleModel associated with this Raster.
*/
public SampleModel getSampleModel() {
return sampleModel;
}
/**
* Gets the translation of the X coordinate from the SampleModel coordinate
* system to the Rasters's coordinate system.
*
* @return the value of the translation of the X coordinate from the
* SampleModel coordinate system to the Rasters's coordinate system.
*/
public final int getSampleModelTranslateX() {
return sampleModelTranslateX;
}
/**
* Gets the translation of the Y coordinate from the SampleModel coordinate
* system to the Rasters's coordinate system.
*
* @return the value of the translation of the Y coordinate from the
* SampleModel coordinate system to the Rasters's coordinate system.
*/
public final int getSampleModelTranslateY() {
return sampleModelTranslateY;
}
/**
* Gets the double array of samples for the specified band of the specified
* rectangular area of pixels in this Raster as a double array.
*
* @param x
* the X coordinate of the rectangular area of pixels.
* @param y
* the Y coordinate of the rectangular area of pixels.
* @param w
* the width of the rectangular area of pixels.
* @param h
* the height of the rectangular area of pixels.
* @param b
* the band.
* @param dArray
* the resulting double array.
* @return the double array of samples for the specified band of the
* specified rectangular area of pixels.
*/
public double[] getSamples(int x, int y, int w, int h, int b, double dArray[]) {
return sampleModel.getSamples(x - sampleModelTranslateX, y - sampleModelTranslateY, w, h,
b, dArray, dataBuffer);
}
/**
* Gets the float array of samples for the specified band of the specified
* rectangular area of pixels in this Raster as a float array.
*
* @param x
* the X coordinate of the rectangular area of pixels.
* @param y
* the Y coordinate of the rectangular area of pixels.
* @param w
* the width of the rectangular area of pixels.
* @param h
* the height of the rectangular area of pixels.
* @param b
* the band.
* @param fArray
* the resulting float array.
* @return the float array of samples for the specified band of the
* specified rectangular area of pixels.
*/
public float[] getSamples(int x, int y, int w, int h, int b, float fArray[]) {
return sampleModel.getSamples(x - sampleModelTranslateX, y - sampleModelTranslateY, w, h,
b, fArray, dataBuffer);
}
/**
* Gets the integer array of samples for the specified band of the specified
* rectangular area of pixels in this Raster as a integer array.
*
* @param x
* the X coordinate of the rectangular area of pixels.
* @param y
* the Y coordinate of the rectangular area of pixels.
* @param w
* the width of the rectangular area of pixels.
* @param h
* the height of the rectangular area of pixels.
* @param b
* the band.
* @param iArray
* the resulting integer array.
* @return the integer array of samples for the specified band of the
* specified rectangular area of pixels.
*/
public int[] getSamples(int x, int y, int w, int h, int b, int iArray[]) {
return sampleModel.getSamples(x - sampleModelTranslateX, y - sampleModelTranslateY, w, h,
b, iArray, dataBuffer);
}
/**
* Gets the transfer type for pixels of this Raster.
*
* @see SampleModel#getTransferType()
* @return the transfer type for pixels of this Raster.
*/
public final int getTransferType() {
return sampleModel.getTransferType();
}
/**
* Gets the width of this Raster.
*
* @return the width of this Raster.
*/
public final int getWidth() {
return width;
}
/**
* Validate data buffer.
*
* @param dataBuffer
* the data buffer.
* @param w
* the w.
* @param h
* the h.
* @param scanlineStride
* the scanline stride.
*/
private static void validateDataBuffer(final DataBuffer dataBuffer, final int w, final int h,
final int scanlineStride) {
if (dataBuffer.getSize() < (scanlineStride * (h - 1) + w - 1)) {
// awt.298=dataBuffer is too small
throw new RasterFormatException(Messages.getString("awt.298")); //$NON-NLS-1$
}
}
}