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	/*
	* Copyright (c) 1995, 2013, Oracle and/or its affiliates. All rights reserved.
	* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
	*
	* This code is free software; you can redistribute it and/or modify it
	* under the terms of the GNU General Public License version 2 only, as
	* published by the Free Software Foundation. Oracle designates this
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	*
	* This code is distributed in the hope that it will be useful, but WITHOUT
	* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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	* version 2 for more details (a copy is included in the LICENSE file that
	* accompanied this code).
	*
	* You should have received a copy of the GNU General Public License version
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	*
	* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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	package java.awt.image;

	import java.awt.color.ColorSpace;
	import java.awt.Transparency;

	/**
	* The <code>DirectColorModel</code> class is a <code>ColorModel</code>
	* class that works with pixel values that represent RGB
	* color and alpha information as separate samples and that pack all
	* samples for a single pixel into a single int, short, or byte quantity.
	* This class can be used only with ColorSpaces of type ColorSpace.TYPE_RGB.
	* In addition, for each component of the ColorSpace, the minimum
	* normalized component value obtained via the <code>getMinValue()</code>
	* method of ColorSpace must be 0.0, and the maximum value obtained via
	* the <code>getMaxValue()</code> method must be 1.0 (these min/max
	* values are typical for RGB spaces).
	* There must be three color samples in the pixel values and there can
	* be a single alpha sample. For those methods that use a primitive array
	* pixel representation of type <code>transferType</code>, the array
	* length is always one. The transfer
	* types supported are DataBuffer.TYPE_BYTE,
	* DataBuffer.TYPE_USHORT, and DataBuffer.TYPE_INT.
	* Color and alpha samples are stored in the single
	* element of the array in bits indicated by bit masks. Each bit mask
	* must be contiguous and masks must not overlap. The same masks apply to
	* the single int pixel representation used by other methods. The
	* correspondence of masks and color/alpha samples is as follows:
	* <ul>
	* <li> Masks are identified by indices running from 0 through 2
	* if no alpha is present, or 3 if an alpha is present.
	* <li> The first three indices refer to color samples;
	* index 0 corresponds to red, index 1 to green, and index 2 to blue.
	* <li> Index 3 corresponds to the alpha sample, if present.
	* </ul>
	* <p>
	* The translation from pixel values to color/alpha components for
	* display or processing purposes is a one-to-one correspondence of
	* samples to components. A <code>DirectColorModel</code> is
	* typically used with image data which uses masks to define packed
	* samples. For example, a <code>DirectColorModel</code> can be used in
	* conjunction with a <code>SinglePixelPackedSampleModel</code> to
	* construct a {@link BufferedImage}. Normally the masks used by the
	* {@link SampleModel} and the <code>ColorModel</code> would be the
	* same. However, if they are different, the color interpretation
	* of pixel data will be done according to the masks of the
	* <code>ColorModel</code>.
	* <p>
	* A single int pixel representation is valid for all objects of this
	* class, since it is always possible to represent pixel values used with
	* this class in a single int. Therefore, methods which use this
	* representation will not throw an <code>IllegalArgumentException</code>
	* due to an invalid pixel value.
	* <p>
	* This color model is similar to an X11 TrueColor visual.
	* The default RGB ColorModel specified by the
	* {@link ColorModel#getRGBdefault() getRGBdefault} method is a
	* <code>DirectColorModel</code> with the following parameters:
	* <pre>
	* Number of bits: 32
	* Red mask: 0x00ff0000
	* Green mask: 0x0000ff00
	* Blue mask: 0x000000ff
	* Alpha mask: 0xff000000
	* Color space: sRGB
	* isAlphaPremultiplied: False
	* Transparency: Transparency.TRANSLUCENT
	* transferType: DataBuffer.TYPE_INT
	* </pre>
	* <p>
	* Many of the methods in this class are final. This is because the
	* underlying native graphics code makes assumptions about the layout
	* and operation of this class and those assumptions are reflected in
	* the implementations of the methods here that are marked final. You
	* can subclass this class for other reasons, but you cannot override
	* or modify the behavior of those methods.
	*
	* @see ColorModel
	* @see ColorSpace
	* @see SinglePixelPackedSampleModel
	* @see BufferedImage
	* @see ColorModel#getRGBdefault
	*
	*/
	public class DirectColorModel extends PackedColorModel {
	private int red_mask;
	private int green_mask;
	private int blue_mask;
	private int alpha_mask;
	private int red_offset;
	private int green_offset;
	private int blue_offset;
	private int alpha_offset;
	private int red_scale;
	private int green_scale;
	private int blue_scale;
	private int alpha_scale;
	private boolean is_LinearRGB;
	private int lRGBprecision;
	private byte[] tosRGB8LUT;
	private byte[] fromsRGB8LUT8;
	private short[] fromsRGB8LUT16;

	/**
	* Constructs a <code>DirectColorModel</code> from the specified masks
	* that indicate which bits in an <code>int</code> pixel representation
	* contain the red, green and blue color samples. As pixel values do not
	* contain alpha information, all pixels are treated as opaque, which
	* means that alpha = 1.0. All of the bits
	* in each mask must be contiguous and fit in the specified number
	* of least significant bits of an <code>int</code> pixel representation.
	* The <code>ColorSpace</code> is the default sRGB space. The
	* transparency value is Transparency.OPAQUE. The transfer type
	* is the smallest of DataBuffer.TYPE_BYTE, DataBuffer.TYPE_USHORT,
	* or DataBuffer.TYPE_INT that can hold a single pixel.
	* @param bits the number of bits in the pixel values; for example,
	* the sum of the number of bits in the masks.
	* @param rmask specifies a mask indicating which bits in an
	* integer pixel contain the red component
	* @param gmask specifies a mask indicating which bits in an
	* integer pixel contain the green component
	* @param bmask specifies a mask indicating which bits in an
	* integer pixel contain the blue component
	*
	*/
	public DirectColorModel(int bits,
	int rmask, int gmask, int bmask) {
	this(bits, rmask, gmask, bmask, 0);
	}

	/**
	* Constructs a <code>DirectColorModel</code> from the specified masks
	* that indicate which bits in an <code>int</code> pixel representation
	* contain the red, green and blue color samples and the alpha sample,
	* if present. If <code>amask</code> is 0, pixel values do not contain
	* alpha information and all pixels are treated as opaque, which means
	* that alpha = 1.0. All of the bits in each mask must
	* be contiguous and fit in the specified number of least significant bits
	* of an <code>int</code> pixel representation. Alpha, if present, is not
	* premultiplied. The <code>ColorSpace</code> is the default sRGB space.
	* The transparency value is Transparency.OPAQUE if no alpha is
	* present, or Transparency.TRANSLUCENT otherwise. The transfer type
	* is the smallest of DataBuffer.TYPE_BYTE, DataBuffer.TYPE_USHORT,
	* or DataBuffer.TYPE_INT that can hold a single pixel.
	* @param bits the number of bits in the pixel values; for example,
	* the sum of the number of bits in the masks.
	* @param rmask specifies a mask indicating which bits in an
	* integer pixel contain the red component
	* @param gmask specifies a mask indicating which bits in an
	* integer pixel contain the green component
	* @param bmask specifies a mask indicating which bits in an
	* integer pixel contain the blue component
	* @param amask specifies a mask indicating which bits in an
	* integer pixel contain the alpha component
	*/
	public DirectColorModel(int bits, int rmask, int gmask,
	int bmask, int amask) {
	super (ColorSpace.getInstance(ColorSpace.CS_sRGB),
	bits, rmask, gmask, bmask, amask, false,
	amask == 0 ? Transparency.OPAQUE : Transparency.TRANSLUCENT,
	ColorModel.getDefaultTransferType(bits));
	setFields();
	}

	/**
	* Constructs a <code>DirectColorModel</code> from the specified
	* parameters. Color components are in the specified
	* <code>ColorSpace</code>, which must be of type ColorSpace.TYPE_RGB
	* and have minimum normalized component values which are all 0.0
	* and maximum values which are all 1.0.
	* The masks specify which bits in an <code>int</code> pixel
	* representation contain the red, green and blue color samples and
	* the alpha sample, if present. If <code>amask</code> is 0, pixel
	* values do not contain alpha information and all pixels are treated
	* as opaque, which means that alpha = 1.0. All of the
	* bits in each mask must be contiguous and fit in the specified number
	* of least significant bits of an <code>int</code> pixel
	* representation. If there is alpha, the <code>boolean</code>
	* <code>isAlphaPremultiplied</code> specifies how to interpret
	* color and alpha samples in pixel values. If the <code>boolean</code>
	* is <code>true</code>, color samples are assumed to have been
	* multiplied by the alpha sample. The transparency value is
	* Transparency.OPAQUE, if no alpha is present, or
	* Transparency.TRANSLUCENT otherwise. The transfer type
	* is the type of primitive array used to represent pixel values and
	* must be one of DataBuffer.TYPE_BYTE, DataBuffer.TYPE_USHORT, or
	* DataBuffer.TYPE_INT.
	* @param space the specified <code>ColorSpace</code>
	* @param bits the number of bits in the pixel values; for example,
	* the sum of the number of bits in the masks.
	* @param rmask specifies a mask indicating which bits in an
	* integer pixel contain the red component
	* @param gmask specifies a mask indicating which bits in an
	* integer pixel contain the green component
	* @param bmask specifies a mask indicating which bits in an
	* integer pixel contain the blue component
	* @param amask specifies a mask indicating which bits in an
	* integer pixel contain the alpha component
	* @param isAlphaPremultiplied <code>true</code> if color samples are
	* premultiplied by the alpha sample; <code>false</code> otherwise
	* @param transferType the type of array used to represent pixel values
	* @throws IllegalArgumentException if <code>space</code> is not a
	* TYPE_RGB space or if the min/max normalized component
	* values are not 0.0/1.0.
	*/
	public DirectColorModel(ColorSpace space, int bits, int rmask,
	int gmask, int bmask, int amask,
	boolean isAlphaPremultiplied,
	int transferType) {
	super (space, bits, rmask, gmask, bmask, amask,
	isAlphaPremultiplied,
	amask == 0 ? Transparency.OPAQUE : Transparency.TRANSLUCENT,
	transferType);
	if (ColorModel.isLinearRGBspace(colorSpace)) {
	is_LinearRGB = true;
	if (maxBits <= 8) {
	lRGBprecision = 8;
	tosRGB8LUT = ColorModel.getLinearRGB8TosRGB8LUT();
	fromsRGB8LUT8 = ColorModel.getsRGB8ToLinearRGB8LUT();
	} else {
	lRGBprecision = 16;
	tosRGB8LUT = ColorModel.getLinearRGB16TosRGB8LUT();
	fromsRGB8LUT16 = ColorModel.getsRGB8ToLinearRGB16LUT();
	}
	} else if (!is_sRGB) {
	for (int i = 0; i < 3; i++) {
	// super constructor checks that space is TYPE_RGB
	// check here that min/max are all 0.0/1.0
	if ((space.getMinValue(i) != 0.0f) \|\|
	(space.getMaxValue(i) != 1.0f)) {
	throw new IllegalArgumentException(
	"Illegal min/max RGB component value");
	}
	}
	}
	setFields();
	}

	/**
	* Returns the mask indicating which bits in an <code>int</code> pixel
	* representation contain the red color component.
	* @return the mask, which indicates which bits of the <code>int</code>
	* pixel representation contain the red color sample.
	*/
	final public int getRedMask() {
	return maskArray[0];
	}

	/**
	* Returns the mask indicating which bits in an <code>int</code> pixel
	* representation contain the green color component.
	* @return the mask, which indicates which bits of the <code>int</code>
	* pixel representation contain the green color sample.
	*/
	final public int getGreenMask() {
	return maskArray[1];
	}

	/**
	* Returns the mask indicating which bits in an <code>int</code> pixel
	* representation contain the blue color component.
	* @return the mask, which indicates which bits of the <code>int</code>
	* pixel representation contain the blue color sample.
	*/
	final public int getBlueMask() {
	return maskArray[2];
	}

	/**
	* Returns the mask indicating which bits in an <code>int</code> pixel
	* representation contain the alpha component.
	* @return the mask, which indicates which bits of the <code>int</code>
	* pixel representation contain the alpha sample.
	*/
	final public int getAlphaMask() {
	if (supportsAlpha) {
	return maskArray[3];
	} else {
	return 0;
	}
	}


	/*
	* Given an int pixel in this ColorModel's ColorSpace, converts
	* it to the default sRGB ColorSpace and returns the R, G, and B
	* components as float values between 0.0 and 1.0.
	*/
	private float[] getDefaultRGBComponents(int pixel) {
	int components[] = getComponents(pixel, null, 0);
	float norm[] = getNormalizedComponents(components, 0, null, 0);
	// Note that getNormalizedComponents returns non-premultiplied values
	return colorSpace.toRGB(norm);
	}


	private int getsRGBComponentFromsRGB(int pixel, int idx) {
	int c = ((pixel & maskArray[idx]) >>> maskOffsets[idx]);
	if (isAlphaPremultiplied) {
	int a = ((pixel & maskArray[3]) >>> maskOffsets[3]);
	c = (a == 0) ? 0 :
	(int) (((c * scaleFactors[idx]) * 255.0f /
	(a * scaleFactors[3])) + 0.5f);
	} else if (scaleFactors[idx] != 1.0f) {
	c = (int) ((c * scaleFactors[idx]) + 0.5f);
	}
	return c;
	}


	private int getsRGBComponentFromLinearRGB(int pixel, int idx) {
	int c = ((pixel & maskArray[idx]) >>> maskOffsets[idx]);
	if (isAlphaPremultiplied) {
	float factor = (float) ((1 << lRGBprecision) - 1);
	int a = ((pixel & maskArray[3]) >>> maskOffsets[3]);
	c = (a == 0) ? 0 :
	(int) (((c * scaleFactors[idx]) * factor /
	(a * scaleFactors[3])) + 0.5f);
	} else if (nBits[idx] != lRGBprecision) {
	if (lRGBprecision == 16) {
	c = (int) ((c * scaleFactors[idx] * 257.0f) + 0.5f);
	} else {
	c = (int) ((c * scaleFactors[idx]) + 0.5f);
	}
	}
	// now range of c is 0-255 or 0-65535, depending on lRGBprecision
	return tosRGB8LUT[c] & 0xff;
	}


	/**
	* Returns the red color component for the specified pixel, scaled
	* from 0 to 255 in the default RGB <code>ColorSpace</code>, sRGB. A
	* color conversion is done if necessary. The pixel value is specified
	* as an <code>int</code>.
	* The returned value is a non pre-multiplied value. Thus, if the
	* alpha is premultiplied, this method divides it out before returning
	* the value. If the alpha value is 0, for example, the red value
	* is 0.
	* @param pixel the specified pixel
	* @return the red color component for the specified pixel, from
	* 0 to 255 in the sRGB <code>ColorSpace</code>.
	*/
	final public int getRed(int pixel) {
	if (is_sRGB) {
	return getsRGBComponentFromsRGB(pixel, 0);
	} else if (is_LinearRGB) {
	return getsRGBComponentFromLinearRGB(pixel, 0);
	}
	float rgb[] = getDefaultRGBComponents(pixel);
	return (int) (rgb[0] * 255.0f + 0.5f);
	}

	/**
	* Returns the green color component for the specified pixel, scaled
	* from 0 to 255 in the default RGB <code>ColorSpace</code>, sRGB. A
	* color conversion is done if necessary. The pixel value is specified
	* as an <code>int</code>.
	* The returned value is a non pre-multiplied value. Thus, if the
	* alpha is premultiplied, this method divides it out before returning
	* the value. If the alpha value is 0, for example, the green value
	* is 0.
	* @param pixel the specified pixel
	* @return the green color component for the specified pixel, from
	* 0 to 255 in the sRGB <code>ColorSpace</code>.
	*/
	final public int getGreen(int pixel) {
	if (is_sRGB) {
	return getsRGBComponentFromsRGB(pixel, 1);
	} else if (is_LinearRGB) {
	return getsRGBComponentFromLinearRGB(pixel, 1);
	}
	float rgb[] = getDefaultRGBComponents(pixel);
	return (int) (rgb[1] * 255.0f + 0.5f);
	}

	/**
	* Returns the blue color component for the specified pixel, scaled
	* from 0 to 255 in the default RGB <code>ColorSpace</code>, sRGB. A
	* color conversion is done if necessary. The pixel value is specified
	* as an <code>int</code>.
	* The returned value is a non pre-multiplied value. Thus, if the
	* alpha is premultiplied, this method divides it out before returning
	* the value. If the alpha value is 0, for example, the blue value
	* is 0.
	* @param pixel the specified pixel
	* @return the blue color component for the specified pixel, from
	* 0 to 255 in the sRGB <code>ColorSpace</code>.
	*/
	final public int getBlue(int pixel) {
	if (is_sRGB) {
	return getsRGBComponentFromsRGB(pixel, 2);
	} else if (is_LinearRGB) {
	return getsRGBComponentFromLinearRGB(pixel, 2);
	}
	float rgb[] = getDefaultRGBComponents(pixel);
	return (int) (rgb[2] * 255.0f + 0.5f);
	}

	/**
	* Returns the alpha component for the specified pixel, scaled
	* from 0 to 255. The pixel value is specified as an <code>int</code>.
	* @param pixel the specified pixel
	* @return the value of the alpha component of <code>pixel</code>
	* from 0 to 255.
	*/
	final public int getAlpha(int pixel) {
	if (!supportsAlpha) return 255;
	int a = ((pixel & maskArray[3]) >>> maskOffsets[3]);
	if (scaleFactors[3] != 1.0f) {
	a = (int)(a * scaleFactors[3] + 0.5f);
	}
	return a;
	}

	/**
	* Returns the color/alpha components of the pixel in the default
	* RGB color model format. A color conversion is done if necessary.
	* The pixel value is specified as an <code>int</code>.
	* The returned value is in a non pre-multiplied format. Thus, if
	* the alpha is premultiplied, this method divides it out of the
	* color components. If the alpha value is 0, for example, the color
	* values are each 0.
	* @param pixel the specified pixel
	* @return the RGB value of the color/alpha components of the specified
	* pixel.
	* @see ColorModel#getRGBdefault
	*/
	final public int getRGB(int pixel) {
	if (is_sRGB \|\| is_LinearRGB) {
	return (getAlpha(pixel) << 24)
	\| (getRed(pixel) << 16)
	\| (getGreen(pixel) << 8)
	\| (getBlue(pixel) << 0);
	}
	float rgb[] = getDefaultRGBComponents(pixel);
	return (getAlpha(pixel) << 24)
	\| (((int) (rgb[0] * 255.0f + 0.5f)) << 16)
	\| (((int) (rgb[1] * 255.0f + 0.5f)) << 8)
	\| (((int) (rgb[2] * 255.0f + 0.5f)) << 0);
	}

	/**
	* Returns the red color component for the specified pixel, scaled
	* from 0 to 255 in the default RGB <code>ColorSpace</code>, sRGB. A
	* color conversion is done if necessary. The pixel value is specified
	* by an array of data elements of type <code>transferType</code> passed
	* in as an object reference.
	* The returned value is a non pre-multiplied value. Thus, if the
	* alpha is premultiplied, this method divides it out before returning
	* the value. If the alpha value is 0, for example, the red value
	* is 0.
	* If <code>inData</code> is not a primitive array of type
	* <code>transferType</code>, a <code>ClassCastException</code> is
	* thrown. An <code>ArrayIndexOutOfBoundsException</code> is
	* thrown if <code>inData</code> is not large enough to hold a
	* pixel value for this <code>ColorModel</code>. Since
	* <code>DirectColorModel</code> can be subclassed, subclasses inherit
	* the implementation of this method and if they don't override it
	* then they throw an exception if they use an unsupported
	* <code>transferType</code>.
	* An <code>UnsupportedOperationException</code> is thrown if this
	* <code>transferType</code> is not supported by this
	* <code>ColorModel</code>.
	* @param inData the array containing the pixel value
	* @return the value of the red component of the specified pixel.
	* @throws ArrayIndexOutOfBoundsException if <code>inData</code> is not
	* large enough to hold a pixel value for this color model
	* @throws ClassCastException if <code>inData</code> is not a
	* primitive array of type <code>transferType</code>
	* @throws UnsupportedOperationException if this <code>transferType</code>
	* is not supported by this color model
	*/
	public int getRed(Object inData) {
	int pixel=0;
	switch (transferType) {
	case DataBuffer.TYPE_BYTE:
	byte bdata[] = (byte[])inData;
	pixel = bdata[0] & 0xff;
	break;
	case DataBuffer.TYPE_USHORT:
	short sdata[] = (short[])inData;
	pixel = sdata[0] & 0xffff;
	break;
	case DataBuffer.TYPE_INT:
	int idata[] = (int[])inData;
	pixel = idata[0];
	break;
	default:
	throw new UnsupportedOperationException("This method has not been "+
	"implemented for transferType " + transferType);
	}
	return getRed(pixel);
	}


	/**
	* Returns the green color component for the specified pixel, scaled
	* from 0 to 255 in the default RGB <code>ColorSpace</code>, sRGB. A
	* color conversion is done if necessary. The pixel value is specified
	* by an array of data elements of type <code>transferType</code> passed
	* in as an object reference.
	* The returned value is a non pre-multiplied value. Thus, if the
	* alpha is premultiplied, this method divides it out before returning
	* the value. If the alpha value is 0, for example, the green value
	* is 0. If <code>inData</code> is not a primitive array of type
	* <code>transferType</code>, a <code>ClassCastException</code> is thrown.
	* An <code>ArrayIndexOutOfBoundsException</code> is
	* thrown if <code>inData</code> is not large enough to hold a pixel
	* value for this <code>ColorModel</code>. Since
	* <code>DirectColorModel</code> can be subclassed, subclasses inherit
	* the implementation of this method and if they don't override it
	* then they throw an exception if they use an unsupported
	* <code>transferType</code>.
	* An <code>UnsupportedOperationException</code> is
	* thrown if this <code>transferType</code> is not supported by this
	* <code>ColorModel</code>.
	* @param inData the array containing the pixel value
	* @return the value of the green component of the specified pixel.
	* @throws ArrayIndexOutOfBoundsException if <code>inData</code> is not
	* large enough to hold a pixel value for this color model
	* @throws ClassCastException if <code>inData</code> is not a
	* primitive array of type <code>transferType</code>
	* @throws UnsupportedOperationException if this <code>transferType</code>
	* is not supported by this color model
	*/
	public int getGreen(Object inData) {
	int pixel=0;
	switch (transferType) {
	case DataBuffer.TYPE_BYTE:
	byte bdata[] = (byte[])inData;
	pixel = bdata[0] & 0xff;
	break;
	case DataBuffer.TYPE_USHORT:
	short sdata[] = (short[])inData;
	pixel = sdata[0] & 0xffff;
	break;
	case DataBuffer.TYPE_INT:
	int idata[] = (int[])inData;
	pixel = idata[0];
	break;
	default:
	throw new UnsupportedOperationException("This method has not been "+
	"implemented for transferType " + transferType);
	}
	return getGreen(pixel);
	}


	/**
	* Returns the blue color component for the specified pixel, scaled
	* from 0 to 255 in the default RGB <code>ColorSpace</code>, sRGB. A
	* color conversion is done if necessary. The pixel value is specified
	* by an array of data elements of type <code>transferType</code> passed
	* in as an object reference.
	* The returned value is a non pre-multiplied value. Thus, if the
	* alpha is premultiplied, this method divides it out before returning
	* the value. If the alpha value is 0, for example, the blue value
	* is 0. If <code>inData</code> is not a primitive array of type
	* <code>transferType</code>, a <code>ClassCastException</code> is thrown.
	* An <code>ArrayIndexOutOfBoundsException</code> is
	* thrown if <code>inData</code> is not large enough to hold a pixel
	* value for this <code>ColorModel</code>. Since
	* <code>DirectColorModel</code> can be subclassed, subclasses inherit
	* the implementation of this method and if they don't override it
	* then they throw an exception if they use an unsupported
	* <code>transferType</code>.
	* An <code>UnsupportedOperationException</code> is
	* thrown if this <code>transferType</code> is not supported by this
	* <code>ColorModel</code>.
	* @param inData the array containing the pixel value
	* @return the value of the blue component of the specified pixel.
	* @throws ArrayIndexOutOfBoundsException if <code>inData</code> is not
	* large enough to hold a pixel value for this color model
	* @throws ClassCastException if <code>inData</code> is not a
	* primitive array of type <code>transferType</code>
	* @throws UnsupportedOperationException if this <code>transferType</code>
	* is not supported by this color model
	*/
	public int getBlue(Object inData) {
	int pixel=0;
	switch (transferType) {
	case DataBuffer.TYPE_BYTE:
	byte bdata[] = (byte[])inData;
	pixel = bdata[0] & 0xff;
	break;
	case DataBuffer.TYPE_USHORT:
	short sdata[] = (short[])inData;
	pixel = sdata[0] & 0xffff;
	break;
	case DataBuffer.TYPE_INT:
	int idata[] = (int[])inData;
	pixel = idata[0];
	break;
	default:
	throw new UnsupportedOperationException("This method has not been "+
	"implemented for transferType " + transferType);
	}
	return getBlue(pixel);
	}

	/**
	* Returns the alpha component for the specified pixel, scaled
	* from 0 to 255. The pixel value is specified by an array of data
	* elements of type <code>transferType</code> passed in as an object
	* reference.
	* If <code>inData</code> is not a primitive array of type
	* <code>transferType</code>, a <code>ClassCastException</code> is
	* thrown. An <code>ArrayIndexOutOfBoundsException</code> is
	* thrown if <code>inData</code> is not large enough to hold a pixel
	* value for this <code>ColorModel</code>. Since
	* <code>DirectColorModel</code> can be subclassed, subclasses inherit
	* the implementation of this method and if they don't override it
	* then they throw an exception if they use an unsupported
	* <code>transferType</code>.
	* If this <code>transferType</code> is not supported, an
	* <code>UnsupportedOperationException</code> is thrown.
	* @param inData the specified pixel
	* @return the alpha component of the specified pixel, scaled from
	* 0 to 255.
	* @exception ClassCastException if <code>inData</code>
	* is not a primitive array of type <code>transferType</code>
	* @exception ArrayIndexOutOfBoundsException if
	* <code>inData</code> is not large enough to hold a pixel value
	* for this <code>ColorModel</code>
	* @exception UnsupportedOperationException if this
	* <code>tranferType</code> is not supported by this
	* <code>ColorModel</code>
	*/
	public int getAlpha(Object inData) {
	int pixel=0;
	switch (transferType) {
	case DataBuffer.TYPE_BYTE:
	byte bdata[] = (byte[])inData;
	pixel = bdata[0] & 0xff;
	break;
	case DataBuffer.TYPE_USHORT:
	short sdata[] = (short[])inData;
	pixel = sdata[0] & 0xffff;
	break;
	case DataBuffer.TYPE_INT:
	int idata[] = (int[])inData;
	pixel = idata[0];
	break;
	default:
	throw new UnsupportedOperationException("This method has not been "+
	"implemented for transferType " + transferType);
	}
	return getAlpha(pixel);
	}

	/**
	* Returns the color/alpha components for the specified pixel in the
	* default RGB color model format. A color conversion is done if
	* necessary. The pixel value is specified by an array of data
	* elements of type <code>transferType</code> passed in as an object
	* reference. If <code>inData</code> is not a primitive array of type
	* <code>transferType</code>, a <code>ClassCastException</code> is
	* thrown. An <code>ArrayIndexOutOfBoundsException</code> is
	* thrown if <code>inData</code> is not large enough to hold a pixel
	* value for this <code>ColorModel</code>.
	* The returned value is in a non pre-multiplied format. Thus, if
	* the alpha is premultiplied, this method divides it out of the
	* color components. If the alpha value is 0, for example, the color
	* values is 0. Since <code>DirectColorModel</code> can be
	* subclassed, subclasses inherit the implementation of this method
	* and if they don't override it then
	* they throw an exception if they use an unsupported
	* <code>transferType</code>.
	*
	* @param inData the specified pixel
	* @return the color and alpha components of the specified pixel.
	* @exception UnsupportedOperationException if this
	* <code>transferType</code> is not supported by this
	* <code>ColorModel</code>
	* @see ColorModel#getRGBdefault
	*/
	public int getRGB(Object inData) {
	int pixel=0;
	switch (transferType) {
	case DataBuffer.TYPE_BYTE:
	byte bdata[] = (byte[])inData;
	pixel = bdata[0] & 0xff;
	break;
	case DataBuffer.TYPE_USHORT:
	short sdata[] = (short[])inData;
	pixel = sdata[0] & 0xffff;
	break;
	case DataBuffer.TYPE_INT:
	int idata[] = (int[])inData;
	pixel = idata[0];
	break;
	default:
	throw new UnsupportedOperationException("This method has not been "+
	"implemented for transferType " + transferType);
	}
	return getRGB(pixel);
	}

	/**
	* Returns a data element array representation of a pixel in this
	* <code>ColorModel</code>, given an integer pixel representation in the
	* default RGB color model.
	* This array can then be passed to the <code>setDataElements</code>
	* method of a <code>WritableRaster</code> object. If the pixel variable
	* is <code>null</code>, a new array is allocated. If <code>pixel</code>
	* is not <code>null</code>, it must be a primitive array of type
	* <code>transferType</code>; otherwise, a
	* <code>ClassCastException</code> is thrown. An
	* <code>ArrayIndexOutOfBoundsException</code> is
	* thrown if <code>pixel</code> is not large enough to hold a pixel
	* value for this <code>ColorModel</code>. The pixel array is returned.
	* Since <code>DirectColorModel</code> can be subclassed, subclasses
	* inherit the implementation of this method and if they don't
	* override it then they throw an exception if they use an unsupported
	* <code>transferType</code>.
	*
	* @param rgb the integer pixel representation in the default RGB
	* color model
	* @param pixel the specified pixel
	* @return an array representation of the specified pixel in this
	* <code>ColorModel</code>
	* @exception ClassCastException if <code>pixel</code>
	* is not a primitive array of type <code>transferType</code>
	* @exception ArrayIndexOutOfBoundsException if
	* <code>pixel</code> is not large enough to hold a pixel value
	* for this <code>ColorModel</code>
	* @exception UnsupportedOperationException if this
	* <code>transferType</code> is not supported by this
	* <code>ColorModel</code>
	* @see WritableRaster#setDataElements
	* @see SampleModel#setDataElements
	*/
	public Object getDataElements(int rgb, Object pixel) {
	//REMIND: maybe more efficient not to use int array for
	//DataBuffer.TYPE_USHORT and DataBuffer.TYPE_INT
	int intpixel[] = null;
	if (transferType == DataBuffer.TYPE_INT &&
	pixel != null) {
	intpixel = (int[])pixel;
	intpixel[0] = 0;
	} else {
	intpixel = new int[1];
	}

	ColorModel defaultCM = ColorModel.getRGBdefault();
	if (this == defaultCM \|\| equals(defaultCM)) {
	intpixel[0] = rgb;
	return intpixel;
	}

	int red, grn, blu, alp;
	red = (rgb>>16) & 0xff;
	grn = (rgb>>8) & 0xff;
	blu = rgb & 0xff;
	if (is_sRGB \|\| is_LinearRGB) {
	int precision;
	float factor;
	if (is_LinearRGB) {
	if (lRGBprecision == 8) {
	red = fromsRGB8LUT8[red] & 0xff;
	grn = fromsRGB8LUT8[grn] & 0xff;
	blu = fromsRGB8LUT8[blu] & 0xff;
	precision = 8;
	factor = 1.0f / 255.0f;
	} else {
	red = fromsRGB8LUT16[red] & 0xffff;
	grn = fromsRGB8LUT16[grn] & 0xffff;
	blu = fromsRGB8LUT16[blu] & 0xffff;
	precision = 16;
	factor = 1.0f / 65535.0f;
	}
	} else {
	precision = 8;
	factor = 1.0f / 255.0f;
	}
	if (supportsAlpha) {
	alp = (rgb>>24) & 0xff;
	if (isAlphaPremultiplied) {
	factor = (alp (1.0f / 255.0f));
	precision = -1; // force component calculations below
	}
	if (nBits[3] != 8) {
	alp = (int)
	((alp * (1.0f / 255.0f) * ((1<<nBits[3]) - 1)) + 0.5f);
	if (alp > ((1<<nBits[3]) - 1)) {
	// fix 4412670 - see comment below
	alp = (1<<nBits[3]) - 1;
	}
	}
	intpixel[0] = alp << maskOffsets[3];
	}
	if (nBits[0] != precision) {
	red = (int) ((red * factor * ((1<<nBits[0]) - 1)) + 0.5f);
	}
	if (nBits[1] != precision) {
	grn = (int) ((grn * factor * ((1<<nBits[1]) - 1)) + 0.5f);
	}
	if (nBits[2] != precision) {
	blu = (int) ((blu * factor * ((1<<nBits[2]) - 1)) + 0.5f);
	}
	} else {
	// Need to convert the color
	float[] norm = new float[3];
	float factor = 1.0f / 255.0f;
	norm[0] = red * factor;
	norm[1] = grn * factor;
	norm[2] = blu * factor;
	norm = colorSpace.fromRGB(norm);
	if (supportsAlpha) {
	alp = (rgb>>24) & 0xff;
	if (isAlphaPremultiplied) {
	factor *= alp;
	for (int i = 0; i < 3; i++) {
	norm[i] *= factor;
	}
	}
	if (nBits[3] != 8) {
	alp = (int)
	((alp * (1.0f / 255.0f) * ((1<<nBits[3]) - 1)) + 0.5f);
	if (alp > ((1<<nBits[3]) - 1)) {
	// fix 4412670 - see comment below
	alp = (1<<nBits[3]) - 1;
	}
	}
	intpixel[0] = alp << maskOffsets[3];
	}
	red = (int) ((norm[0] * ((1<<nBits[0]) - 1)) + 0.5f);
	grn = (int) ((norm[1] * ((1<<nBits[1]) - 1)) + 0.5f);
	blu = (int) ((norm[2] * ((1<<nBits[2]) - 1)) + 0.5f);
	}

	if (maxBits > 23) {
	// fix 4412670 - for components of 24 or more bits
	// some calculations done above with float precision
	// may lose enough precision that the integer result
	// overflows nBits, so we need to clamp.
	if (red > ((1<<nBits[0]) - 1)) {
	red = (1<<nBits[0]) - 1;
	}
	if (grn > ((1<<nBits[1]) - 1)) {
	grn = (1<<nBits[1]) - 1;
	}
	if (blu > ((1<<nBits[2]) - 1)) {
	blu = (1<<nBits[2]) - 1;
	}
	}

	intpixel[0] \|= (red << maskOffsets[0]) \|
	(grn << maskOffsets[1]) \|
	(blu << maskOffsets[2]);

	switch (transferType) {
	case DataBuffer.TYPE_BYTE: {
	byte bdata[];
	if (pixel == null) {
	bdata = new byte[1];
	} else {
	bdata = (byte[])pixel;
	}
	bdata[0] = (byte)(0xff&intpixel[0]);
	return bdata;
	}
	case DataBuffer.TYPE_USHORT:{
	short sdata[];
	if (pixel == null) {
	sdata = new short[1];
	} else {
	sdata = (short[])pixel;
	}
	sdata[0] = (short)(intpixel[0]&0xffff);
	return sdata;
	}
	case DataBuffer.TYPE_INT:
	return intpixel;
	}
	throw new UnsupportedOperationException("This method has not been "+
	"implemented for transferType " + transferType);

	}

	/**
	* Returns an array of unnormalized color/alpha components given a pixel
	* in this <code>ColorModel</code>. The pixel value is specified as an
	* <code>int</code>. If the <code>components</code> array is
	* <code>null</code>, a new array is allocated. The
	* <code>components</code> array is returned. Color/alpha components are
	* stored in the <code>components</code> array starting at
	* <code>offset</code>, even if the array is allocated by this method.
	* An <code>ArrayIndexOutOfBoundsException</code> is thrown if the
	* <code>components</code> array is not <code>null</code> and is not large
	* enough to hold all the color and alpha components, starting at
	* <code>offset</code>.
	* @param pixel the specified pixel
	* @param components the array to receive the color and alpha
	* components of the specified pixel
	* @param offset the offset into the <code>components</code> array at
	* which to start storing the color and alpha components
	* @return an array containing the color and alpha components of the
	* specified pixel starting at the specified offset.
	*/
	final public int[] getComponents(int pixel, int[] components, int offset) {
	if (components == null) {
	components = new int[offset+numComponents];
	}

	for (int i=0; i < numComponents; i++) {
	components[offset+i] = (pixel & maskArray[i]) >>> maskOffsets[i];
	}

	return components;
	}

	/**
	* Returns an array of unnormalized color/alpha components given a pixel
	* in this <code>ColorModel</code>. The pixel value is specified by an
	* array of data elements of type <code>transferType</code> passed in as
	* an object reference. If <code>pixel</code> is not a primitive array
	* of type <code>transferType</code>, a <code>ClassCastException</code>
	* is thrown. An <code>ArrayIndexOutOfBoundsException</code> is
	* thrown if <code>pixel</code> is not large enough to hold a
	* pixel value for this <code>ColorModel</code>. If the
	* <code>components</code> array is <code>null</code>, a new
	* array is allocated. The <code>components</code> array is returned.
	* Color/alpha components are stored in the <code>components</code> array
	* starting at <code>offset</code>, even if the array is allocated by
	* this method. An <code>ArrayIndexOutOfBoundsException</code>
	* is thrown if the <code>components</code> array is not
	* <code>null</code> and is not large enough to hold all the color and
	* alpha components, starting at <code>offset</code>.
	* Since <code>DirectColorModel</code> can be subclassed, subclasses
	* inherit the implementation of this method and if they don't
	* override it then they throw an exception if they use an unsupported
	* <code>transferType</code>.
	* @param pixel the specified pixel
	* @param components the array to receive the color and alpha
	* components of the specified pixel
	* @param offset the offset into the <code>components</code> array at
	* which to start storing the color and alpha components
	* @return an array containing the color and alpha components of the
	* specified pixel starting at the specified offset.
	* @exception ClassCastException if <code>pixel</code>
	* is not a primitive array of type <code>transferType</code>
	* @exception ArrayIndexOutOfBoundsException if
	* <code>pixel</code> is not large enough to hold a pixel value
	* for this <code>ColorModel</code>, or if <code>components</code>
	* is not <code>null</code> and is not large enough to hold all the
	* color and alpha components, starting at <code>offset</code>
	* @exception UnsupportedOperationException if this
	* <code>transferType</code> is not supported by this
	* color model
	*/
	final public int[] getComponents(Object pixel, int[] components,
	int offset) {
	int intpixel=0;
	switch (transferType) {
	case DataBuffer.TYPE_BYTE:
	byte bdata[] = (byte[])pixel;
	intpixel = bdata[0] & 0xff;
	break;
	case DataBuffer.TYPE_USHORT:
	short sdata[] = (short[])pixel;
	intpixel = sdata[0] & 0xffff;
	break;
	case DataBuffer.TYPE_INT:
	int idata[] = (int[])pixel;
	intpixel = idata[0];
	break;
	default:
	throw new UnsupportedOperationException("This method has not been "+
	"implemented for transferType " + transferType);
	}
	return getComponents(intpixel, components, offset);
	}

	/**
	* Creates a <code>WritableRaster</code> with the specified width and
	* height that has a data layout (<code>SampleModel</code>) compatible
	* with this <code>ColorModel</code>.
	* @param w the width to apply to the new <code>WritableRaster</code>
	* @param h the height to apply to the new <code>WritableRaster</code>
	* @return a <code>WritableRaster</code> object with the specified
	* width and height.
	* @throws IllegalArgumentException if <code>w</code> or <code>h</code>
	* is less than or equal to zero
	* @see WritableRaster
	* @see SampleModel
	*/
	final public WritableRaster createCompatibleWritableRaster (int w,
	int h) {
	if ((w <= 0) \|\| (h <= 0)) {
	throw new IllegalArgumentException("Width (" + w + ") and height (" + h +
	") cannot be <= 0");
	}
	int[] bandmasks;
	if (supportsAlpha) {
	bandmasks = new int[4];
	bandmasks[3] = alpha_mask;
	}
	else {
	bandmasks = new int[3];
	}
	bandmasks[0] = red_mask;
	bandmasks[1] = green_mask;
	bandmasks[2] = blue_mask;

	if (pixel_bits > 16) {
	return Raster.createPackedRaster(DataBuffer.TYPE_INT,
	w,h,bandmasks,null);
	}
	else if (pixel_bits > 8) {
	return Raster.createPackedRaster(DataBuffer.TYPE_USHORT,
	w,h,bandmasks,null);
	}
	else {
	return Raster.createPackedRaster(DataBuffer.TYPE_BYTE,
	w,h,bandmasks,null);
	}
	}

	/**
	* Returns a pixel value represented as an <code>int</code> in this
	* <code>ColorModel</code>, given an array of unnormalized color/alpha
	* components. An <code>ArrayIndexOutOfBoundsException</code> is
	* thrown if the <code>components</code> array is
	* not large enough to hold all the color and alpha components, starting
	* at <code>offset</code>.
	* @param components an array of unnormalized color and alpha
	* components
	* @param offset the index into <code>components</code> at which to
	* begin retrieving the color and alpha components
	* @return an <code>int</code> pixel value in this
	* <code>ColorModel</code> corresponding to the specified components.
	* @exception ArrayIndexOutOfBoundsException if
	* the <code>components</code> array is not large enough to
	* hold all of the color and alpha components starting at
	* <code>offset</code>
	*/
	public int getDataElement(int[] components, int offset) {
	int pixel = 0;
	for (int i=0; i < numComponents; i++) {
	pixel \|= ((components[offset+i]<<maskOffsets[i])&maskArray[i]);
	}
	return pixel;
	}

	/**
	* Returns a data element array representation of a pixel in this
	* <code>ColorModel</code>, given an array of unnormalized color/alpha
	* components.
	* This array can then be passed to the <code>setDataElements</code>
	* method of a <code>WritableRaster</code> object.
	* An <code>ArrayIndexOutOfBoundsException</code> is thrown if the
	* <code>components</code> array
	* is not large enough to hold all the color and alpha components,
	* starting at offset. If the <code>obj</code> variable is
	* <code>null</code>, a new array is allocated. If <code>obj</code> is
	* not <code>null</code>, it must be a primitive array
	* of type <code>transferType</code>; otherwise, a
	* <code>ClassCastException</code> is thrown.
	* An <code>ArrayIndexOutOfBoundsException</code> is thrown if
	* <code>obj</code> is not large enough to hold a pixel value for this
	* <code>ColorModel</code>.
	* Since <code>DirectColorModel</code> can be subclassed, subclasses
	* inherit the implementation of this method and if they don't
	* override it then they throw an exception if they use an unsupported
	* <code>transferType</code>.
	* @param components an array of unnormalized color and alpha
	* components
	* @param offset the index into <code>components</code> at which to
	* begin retrieving color and alpha components
	* @param obj the <code>Object</code> representing an array of color
	* and alpha components
	* @return an <code>Object</code> representing an array of color and
	* alpha components.
	* @exception ClassCastException if <code>obj</code>
	* is not a primitive array of type <code>transferType</code>
	* @exception ArrayIndexOutOfBoundsException if
	* <code>obj</code> is not large enough to hold a pixel value
	* for this <code>ColorModel</code> or the <code>components</code>
	* array is not large enough to hold all of the color and alpha
	* components starting at <code>offset</code>
	* @exception UnsupportedOperationException if this
	* <code>transferType</code> is not supported by this
	* color model
	* @see WritableRaster#setDataElements
	* @see SampleModel#setDataElements
	*/
	public Object getDataElements(int[] components, int offset, Object obj) {
	int pixel = 0;
	for (int i=0; i < numComponents; i++) {
	pixel \|= ((components[offset+i]<<maskOffsets[i])&maskArray[i]);
	}
	switch (transferType) {
	case DataBuffer.TYPE_BYTE:
	if (obj instanceof byte[]) {
	byte bdata[] = (byte[])obj;
	bdata[0] = (byte)(pixel&0xff);
	return bdata;
	} else {
	byte bdata[] = {(byte)(pixel&0xff)};
	return bdata;
	}
	case DataBuffer.TYPE_USHORT:
	if (obj instanceof short[]) {
	short sdata[] = (short[])obj;
	sdata[0] = (short)(pixel&0xffff);
	return sdata;
	} else {
	short sdata[] = {(short)(pixel&0xffff)};
	return sdata;
	}
	case DataBuffer.TYPE_INT:
	if (obj instanceof int[]) {
	int idata[] = (int[])obj;
	idata[0] = pixel;
	return idata;
	} else {
	int idata[] = {pixel};
	return idata;
	}
	default:
	throw new ClassCastException("This method has not been "+
	"implemented for transferType " + transferType);
	}
	}

	/**
	* Forces the raster data to match the state specified in the
	* <code>isAlphaPremultiplied</code> variable, assuming the data is
	* currently correctly described by this <code>ColorModel</code>. It
	* may multiply or divide the color raster data by alpha, or do
	* nothing if the data is in the correct state. If the data needs to
	* be coerced, this method will also return an instance of this
	* <code>ColorModel</code> with the <code>isAlphaPremultiplied</code>
	* flag set appropriately. This method will throw a
	* <code>UnsupportedOperationException</code> if this transferType is
	* not supported by this <code>ColorModel</code>. Since
	* <code>ColorModel</code> can be subclassed, subclasses inherit the
	* implementation of this method and if they don't override it then
	* they throw an exception if they use an unsupported transferType.
	*
	* @param raster the <code>WritableRaster</code> data
	* @param isAlphaPremultiplied <code>true</code> if the alpha is
	* premultiplied; <code>false</code> otherwise
	* @return a <code>ColorModel</code> object that represents the
	* coerced data.
	* @exception UnsupportedOperationException if this
	* <code>transferType</code> is not supported by this
	* color model
	*/
	final public ColorModel coerceData (WritableRaster raster,
	boolean isAlphaPremultiplied)
	{
	if (!supportsAlpha \|\|
	this.isAlphaPremultiplied() == isAlphaPremultiplied) {
	return this;
	}

	int w = raster.getWidth();
	int h = raster.getHeight();
	int aIdx = numColorComponents;
	float normAlpha;
	float alphaScale = 1.0f / ((float) ((1 << nBits[aIdx]) - 1));

	int rminX = raster.getMinX();
	int rY = raster.getMinY();
	int rX;
	int pixel[] = null;
	int zpixel[] = null;

	if (isAlphaPremultiplied) {
	// Must mean that we are currently not premultiplied so
	// multiply by alpha
	switch (transferType) {
	case DataBuffer.TYPE_BYTE: {
	for (int y = 0; y < h; y++, rY++) {
	rX = rminX;
	for (int x = 0; x < w; x++, rX++) {
	pixel = raster.getPixel(rX, rY, pixel);
	normAlpha = pixel[aIdx] * alphaScale;
	if (normAlpha != 0.f) {
	for (int c=0; c < aIdx; c++) {
	pixel[c] = (int) (pixel[c] * normAlpha +
	0.5f);
	}
	raster.setPixel(rX, rY, pixel);
	} else {
	if (zpixel == null) {
	zpixel = new int[numComponents];
	java.util.Arrays.fill(zpixel, 0);
	}
	raster.setPixel(rX, rY, zpixel);
	}
	}
	}
	}
	break;
	case DataBuffer.TYPE_USHORT: {
	for (int y = 0; y < h; y++, rY++) {
	rX = rminX;
	for (int x = 0; x < w; x++, rX++) {
	pixel = raster.getPixel(rX, rY, pixel);
	normAlpha = pixel[aIdx] * alphaScale;
	if (normAlpha != 0.f) {
	for (int c=0; c < aIdx; c++) {
	pixel[c] = (int) (pixel[c] * normAlpha +
	0.5f);
	}
	raster.setPixel(rX, rY, pixel);
	} else {
	if (zpixel == null) {
	zpixel = new int[numComponents];
	java.util.Arrays.fill(zpixel, 0);
	}
	raster.setPixel(rX, rY, zpixel);
	}
	}
	}
	}
	break;
	case DataBuffer.TYPE_INT: {
	for (int y = 0; y < h; y++, rY++) {
	rX = rminX;
	for (int x = 0; x < w; x++, rX++) {
	pixel = raster.getPixel(rX, rY, pixel);
	normAlpha = pixel[aIdx] * alphaScale;
	if (normAlpha != 0.f) {
	for (int c=0; c < aIdx; c++) {
	pixel[c] = (int) (pixel[c] * normAlpha +
	0.5f);
	}
	raster.setPixel(rX, rY, pixel);
	} else {
	if (zpixel == null) {
	zpixel = new int[numComponents];
	java.util.Arrays.fill(zpixel, 0);
	}
	raster.setPixel(rX, rY, zpixel);
	}
	}
	}
	}
	break;
	default:
	throw new UnsupportedOperationException("This method has not been "+
	"implemented for transferType " + transferType);
	}
	}
	else {
	// We are premultiplied and want to divide it out
	switch (transferType) {
	case DataBuffer.TYPE_BYTE: {
	for (int y = 0; y < h; y++, rY++) {
	rX = rminX;
	for (int x = 0; x < w; x++, rX++) {
	pixel = raster.getPixel(rX, rY, pixel);
	normAlpha = pixel[aIdx] * alphaScale;
	if (normAlpha != 0.0f) {
	float invAlpha = 1.0f / normAlpha;
	for (int c=0; c < aIdx; c++) {
	pixel[c] = (int) (pixel[c] * invAlpha +
	0.5f);
	}
	raster.setPixel(rX, rY, pixel);
	}
	}
	}
	}
	break;
	case DataBuffer.TYPE_USHORT: {
	for (int y = 0; y < h; y++, rY++) {
	rX = rminX;
	for (int x = 0; x < w; x++, rX++) {
	pixel = raster.getPixel(rX, rY, pixel);
	normAlpha = pixel[aIdx] * alphaScale;
	if (normAlpha != 0) {
	float invAlpha = 1.0f / normAlpha;
	for (int c=0; c < aIdx; c++) {
	pixel[c] = (int) (pixel[c] * invAlpha +
	0.5f);
	}
	raster.setPixel(rX, rY, pixel);
	}
	}
	}
	}
	break;
	case DataBuffer.TYPE_INT: {
	for (int y = 0; y < h; y++, rY++) {
	rX = rminX;
	for (int x = 0; x < w; x++, rX++) {
	pixel = raster.getPixel(rX, rY, pixel);
	normAlpha = pixel[aIdx] * alphaScale;
	if (normAlpha != 0) {
	float invAlpha = 1.0f / normAlpha;
	for (int c=0; c < aIdx; c++) {
	pixel[c] = (int) (pixel[c] * invAlpha +
	0.5f);
	}
	raster.setPixel(rX, rY, pixel);
	}
	}
	}
	}
	break;
	default:
	throw new UnsupportedOperationException("This method has not been "+
	"implemented for transferType " + transferType);
	}
	}

	// Return a new color model
	return new DirectColorModel(colorSpace, pixel_bits, maskArray[0],
	maskArray[1], maskArray[2], maskArray[3],
	isAlphaPremultiplied,
	transferType);

	}

	/**
	* Returns <code>true</code> if <code>raster</code> is compatible
	* with this <code>ColorModel</code> and <code>false</code> if it is
	* not.
	* @param raster the {@link Raster} object to test for compatibility
	* @return <code>true</code> if <code>raster</code> is compatible
	* with this <code>ColorModel</code>; <code>false</code> otherwise.
	*/
	public boolean isCompatibleRaster(Raster raster) {
	SampleModel sm = raster.getSampleModel();
	SinglePixelPackedSampleModel spsm;
	if (sm instanceof SinglePixelPackedSampleModel) {
	spsm = (SinglePixelPackedSampleModel) sm;
	}
	else {
	return false;
	}
	if (spsm.getNumBands() != getNumComponents()) {
	return false;
	}

	int[] bitMasks = spsm.getBitMasks();
	for (int i=0; i<numComponents; i++) {
	if (bitMasks[i] != maskArray[i]) {
	return false;
	}
	}

	return (raster.getTransferType() == transferType);
	}

	private void setFields() {
	// Set the private fields
	// REMIND: Get rid of these from the native code
	red_mask = maskArray[0];
	red_offset = maskOffsets[0];
	green_mask = maskArray[1];
	green_offset = maskOffsets[1];
	blue_mask = maskArray[2];
	blue_offset = maskOffsets[2];
	if (nBits[0] < 8) {
	red_scale = (1 << nBits[0]) - 1;
	}
	if (nBits[1] < 8) {
	green_scale = (1 << nBits[1]) - 1;
	}
	if (nBits[2] < 8) {
	blue_scale = (1 << nBits[2]) - 1;
	}
	if (supportsAlpha) {
	alpha_mask = maskArray[3];
	alpha_offset = maskOffsets[3];
	if (nBits[3] < 8) {
	alpha_scale = (1 << nBits[3]) - 1;
	}
	}
	}

	/**
	* Returns a <code>String</code> that represents this
	* <code>DirectColorModel</code>.
	* @return a <code>String</code> representing this
	* <code>DirectColorModel</code>.
	*/
	public String toString() {
	return new String("DirectColorModel: rmask="
	+Integer.toHexString(red_mask)+" gmask="
	+Integer.toHexString(green_mask)+" bmask="
	+Integer.toHexString(blue_mask)+" amask="
	+Integer.toHexString(alpha_mask));
	}
	}

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