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         the bits of the pixel values that represent 
         the blue color component<DD><CODE>amask</CODE> - specifies the mask representing
         the bits of the pixel values that represent 
         the alpha component<DD><CODE>isAlphaPremultiplied</CODE> - <code>true</code> if color samples are
        premultiplied by the alpha sample; <code>false</code> otherwise<DD><CODE>trans</CODE> - specifies the alpha value that can be represented by
        this color model<DD><CODE>transferType</CODE> - the type of array used to represent pixel values<DT><B>Throws:</B><DD><CODE><A HREF="../../../java/lang/IllegalArgumentException.html">IllegalArgumentException</A></CODE> - if <code>space</code> is not a
         TYPE_RGB space<DT><B>See Also: </B><DD><A HREF="../../../java/awt/color/ColorSpace.html"><CODE>ColorSpace</CODE></A></DL>
</DD>
</DL>

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<A NAME="getMask(int)"><!-- --></A><H3>
getMask</H3>
<PRE>
public final int <B>getMask</B>(int&nbsp;index)</PRE>
<DL>
<DD>Returns the mask indicating which bits in a pixel 
 contain the specified color/alpha sample.  For color 
 samples, <code>index</code> corresponds to the placement of color
 sample names in the color space.  Thus, an <code>index</code>
 equal to 0 for a CMYK ColorSpace would correspond to
 Cyan and an <code>index</code> equal to 1 would correspond to 
 Magenta.  If there is alpha, the alpha <code>index</code> would be:
 <pre>
      alphaIndex = numComponents() - 1;
 </pre><DD><DL>
<DT><B>Parameters:</B><DD><CODE>index</CODE> - the specified color or alpha sample<DT><B>Returns:</B><DD>the mask, which indicates which bits of the <code>int</code> 
         pixel representation contain the color or alpha sample specified
         by <code>index</code>.<DT><B>Throws:</B><DD><CODE><A HREF="../../../java/lang/ArrayIndexOutOfBoundsException.html">ArrayIndexOutOfBoundsException</A></CODE> - if <code>index</code> is
         greater than the number of components minus 1 in this 
         <code>PackedColorModel</code> or if <code>index</code> is
         less than zero</DL>
</DD>
</DL>
<HR>

<A NAME="getMasks()"><!-- --></A><H3>
getMasks</H3>
<PRE>
public final int[] <B>getMasks</B>()</PRE>
<DL>
<DD>Returns a mask array indicating which bits in a pixel
 contain the color and alpha samples.<DD><DL>
<DT><B>Returns:</B><DD>the mask array , which indicates which bits of the 
         <code>int</code> pixel
         representation contain the color or alpha samples.</DL>
</DD>
</DL>
<HR>

<A NAME="createCompatibleSampleModel(int, int)"><!-- --></A><H3>
createCompatibleSampleModel</H3>
<PRE>
public <A HREF="../../../java/awt/image/SampleModel.html">SampleModel</A> <B>createCompatibleSampleModel</B>(int&nbsp;w,
                                               int&nbsp;h)</PRE>
<DL>
<DD>Creates a <code>SampleModel</code> with the specified width and
 height that has a data layout compatible with this 
 <code>ColorModel</code>.<DD><DL>
<DT><B>Overrides:</B><DD><CODE><A HREF="../../../java/awt/image/ColorModel.html#createCompatibleSampleModel(int, int)">createCompatibleSampleModel</A></CODE> in class <CODE><A HREF="../../../java/awt/image/ColorModel.html">ColorModel</A></CODE></DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>w</CODE> - the width (in pixels) of the region of the image data
          described<DD><CODE>h</CODE> - the height (in pixels) of the region of the image data
          described<DT><B>Returns:</B><DD>the newly created <code>SampleModel</code>.<DT><B>Throws:</B><DD><CODE><A HREF="../../../java/lang/IllegalArgumentException.html">IllegalArgumentException</A></CODE> - if <code>w</code> or
         <code>h</code> is not greater than 0<DT><B>See Also: </B><DD><A HREF="../../../java/awt/image/SampleModel.html"><CODE>SampleModel</CODE></A></DL>
</DD>
</DL>
<HR>

<A NAME="isCompatibleSampleModel(java.awt.image.SampleModel)"><!-- --></A><H3>
isCompatibleSampleModel</H3>
<PRE>
public boolean <B>isCompatibleSampleModel</B>(<A HREF="../../../java/awt/image/SampleModel.html">SampleModel</A>&nbsp;sm)</PRE>
<DL>
<DD>Checks if the specified <code>SampleModel</code> is compatible
 with this <code>ColorModel</code>.  If <code>sm</code> is 
 <code>null</code>, this method returns <code>false</code>.<DD><DL>
<DT><B>Overrides:</B><DD><CODE><A HREF="../../../java/awt/image/ColorModel.html#isCompatibleSampleModel(java.awt.image.SampleModel)">isCompatibleSampleModel</A></CODE> in class <CODE><A HREF="../../../java/awt/image/ColorModel.html">ColorModel</A></CODE></DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>sm</CODE> - the specified <code>SampleModel</code>, 
 or <code>null</code><DT><B>Returns:</B><DD><code>true</code> if the specified <code>SampleModel</code>
         is compatible with this <code>ColorModel</code>; 
         <code>false</code> otherwise.<DT><B>See Also: </B><DD><A HREF="../../../java/awt/image/SampleModel.html"><CODE>SampleModel</CODE></A></DL>
</DD>
</DL>
<HR>

<A NAME="getAlphaRaster(java.awt.image.WritableRaster)"><!-- --></A><H3>
getAlphaRaster</H3>
<PRE>
public <A HREF="../../../java/awt/image/WritableRaster.html">WritableRaster</A> <B>getAlphaRaster</B>(<A HREF="../../../java/awt/image/WritableRaster.html">WritableRaster</A>&nbsp;raster)</PRE>
<DL>
<DD>Returns a <A HREF="../../../java/awt/image/WritableRaster.html"><CODE>WritableRaster</CODE></A> representing the alpha channel of 
 an image, extracted from the input <code>WritableRaster</code>.
 This method assumes that <code>WritableRaster</code> objects 
 associated with this <code>ColorModel</code> store the alpha band, 
 if present, as the last band of image data.  Returns <code>null</code>
 if there is no separate spatial alpha channel associated with this 
 <code>ColorModel</code>.  This method creates a new 
 <code>WritableRaster</code>, but shares the data array.<DD><DL>
<DT><B>Overrides:</B><DD><CODE><A HREF="../../../java/awt/image/ColorModel.html#getAlphaRaster(java.awt.image.WritableRaster)">getAlphaRaster</A></CODE> in class <CODE><A HREF="../../../java/awt/image/ColorModel.html">ColorModel</A></CODE></DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>raster</CODE> - a <code>WritableRaster</code> containing an image<DT><B>Returns:</B><DD>a <code>WritableRaster</code> that represents the alpha
         channel of the image contained in <code>raster</code>.</DL>
</DD>
</DL>
<HR>

<A NAME="equals(java.lang.Object)"><!-- --></A><H3>
equals</H3>
<PRE>
public boolean <B>equals</B>(<A HREF="../../../java/lang/Object.html">Object</A>&nbsp;obj)</PRE>
<DL>
<DD>Tests if the specified <code>Object</code> is an instance
 of <code>PackedColorModel</code> and equals this
 <code>PackedColorModel</code>.<DD><DL>
<DT><B>Overrides:</B><DD><CODE><A HREF="../../../java/awt/image/ColorModel.html#equals(java.lang.Object)">equals</A></CODE> in class <CODE><A HREF="../../../java/awt/image/ColorModel.html">ColorModel</A></CODE></DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>obj</CODE> - the <code>Object</code> to test for equality<DT><B>Returns:</B><DD><code>true</code> if the specified <code>Object</code>
 is an instance of <code>PackedColorModel</code> and equals this
 <code>PackedColorModel</code>; <code>false</code> otherwise.</DL>
</DD>
</DL>
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