sdk/1.0/docs/man/get_image_channel_order.xml

<?xml version="1.0" encoding="UTF-8"?>
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<refentry>
    <refentryinfo>
        <keywordset>
            <keyword>                            
                get_image_channel_order
            </keyword>
        </keywordset>
    </refentryinfo>

    <refmeta>                                    
        <refentrytitle>get_image_channel_order</refentrytitle>

        <refmiscinfo>
            <copyright>
                <year>2007-2009</year>
                <holder>The Khronos Group Inc. 
 Permission is hereby granted, free of charge, to any person obtaining a
copy of this software and/or associated documentation files (the
"Materials"), to deal in the Materials without restriction, including
without limitation the rights to use, copy, modify, merge, publish,
distribute, sublicense, and/or sell copies of the Materials, and to
permit persons to whom the Materials are furnished to do so, subject to
the condition that this copyright notice and permission notice shall be included
in all copies or substantial portions of the Materials.</holder>
            </copyright>
        </refmiscinfo>
        <manvolnum>2</manvolnum>
    </refmeta>

<!-- ================================ SYNOPSIS -->

    <refnamediv id="get_image_channel_order">             
        <refname>get_image_channel_order</refname>

        <refpurpose>
            Return the image channel data order.
        </refpurpose>
    </refnamediv>

	<refsynopsisdiv xmlns:xlink="http://www.w3.org/1999/xlink"><title></title>
        <funcsynopsis>
            <funcprototype>
                <funcdef>
                    <link xlink:href="scalarDataTypes.html">int</link>


                    <function>                   
                        get_image_channel_order
                    </function>
                </funcdef>
				<paramdef>image2d_t<parameter>image</parameter></paramdef>	
			</funcprototype>
        </funcsynopsis>     

        <funcsynopsis>
            <funcprototype>
                <funcdef>
                    <link xlink:href="scalarDataTypes.html">int</link>


                    <function>                   
                        get_image_channel_order
                    </function>
                </funcdef>
				<paramdef>image3d_t<parameter>image</parameter></paramdef>	
			</funcprototype>
        </funcsynopsis>    	
		
	</refsynopsisdiv>		

<!-- ================================ DESCRIPTION  -->

    <refsect1 id="description"><title>Description</title>
        <para>
			Return the image channel order. Valid values are:<literallayout>
CLK_A
CLK_R
CLK_RG
CLK_RA
CLK_RGB
CLK_RGBA
CLK_ARGB
CLK_BGRA
CLK_INTENSITY
CLK_LUMINANCE</literallayout>
		</para>
    </refsect1>

<!-- ================================ NOTES  -->

    <refsect1 id="notes"><title>Notes</title>
        <para>
	  The following table describes the mapping of the number of channels of an image element to the appropriate components in the float4, int4 or unsigned int4 vector data type for the color values returned by <function>read_image{f|i|ui}</function> or supplied to <function>write_image{f|i|ui}</function>. The unmapped components will be set to <constant>0.0</constant> for red, green and blue channels and will be set to <constant>1.0</constant> for the alpha channel.
		</para>
		<para>
		<informaltable frame="all">
			<tgroup cols="2" align="center" colsep="1" rowsep="1">
				<colspec colname="col1" colnum="1" />
				<colspec colname="col2" colnum="2" />
				<thead>
					<row>
						<entry>Channel Order</entry>
						<entry>float4, int4 or unsigned int4 components of channel data</entry>
             		</row>
              	</thead>
                <tbody>
               		<row>
                     	<entry><constant>CL_R</constant></entry>
                        <entry><constant>(r, 0.0, 0.0, 1.0)</constant></entry>
                  	</row>
					<row>
                     	<entry><constant>CL_A</constant></entry>
                        <entry><constant>(0.0, 0.0, 0.0, a)</constant></entry>
                  	</row>
					<row>
                     	<entry><constant>CL_RG</constant></entry>
                        <entry><constant>(r, g, 0.0, 1.0)</constant></entry>
                  	</row>
					<row>
                     	<entry><constant>CL_RA</constant></entry>
                        <entry><constant>(r, 0.0, 0.0, a)</constant></entry>
                  	</row>
					<row>
                     	<entry><constant>CL_RGB</constant></entry>
                        <entry><constant>(r, g, b, 1.0)</constant></entry>
                  	</row>
					<row>
                     	<entry><constant>CL_RGBA, CL_BGRA, CL_ARGB</constant></entry>
                        <entry><constant>(r, g, b, a)</constant></entry>
                  	</row>
					<row>
                     	<entry><constant>CL_INTENSITY</constant></entry>
                        <entry><constant>(I, I, I, I)</constant></entry>
                  	</row>
					<row>
                     	<entry><constant>CL_LUMINANCE</constant></entry>
                        <entry><constant>(L, L, L, 1.0)</constant></entry>
                  	</row>
				</tbody>    
			</tgroup>
		</informaltable>
		</para>
	</refsect1>
	
<!-- ================================ EXAMPLE  -->
<!-- DO NOT DELETE IN CASE AN EXAMPLE IS ADDED IN THE FUTURE -->
<!--
    <refsect2 id="example1">
        <title>
            Example
        </title>

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                <colspec colname="col1" colnum="1" />
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                        <entry>
                            Example goes here - it will be set in "code" type with white space preserved.
                        </entry>
                    </row>
                </tbody>
            </tgroup>
        </informaltable>
    </refsect2>
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<!-- ================================ SPECIFICATION  -->
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    <refsect1 id="specification"><title>Specification</title>
        <para>
            <imageobject>
                <imagedata fileref="pdficon_small1.gif" format="gif" />
            </imageobject>
                                                 
            <olink uri="imageFunctions">OpenCL Specification</olink>
        </para>
    </refsect1>


<!-- ================================ ALSO SEE  -->

    <refsect1 id="seealso"><title>Also see</title>
        <para>
            <citerefentry href="imageFunctions"><refentrytitle>Image Functions</refentrytitle></citerefentry> 
        </para>
    </refsect1>



<!-- ============================== COPYRIGHT -->
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    <refsect3 id="Copyright"><title></title>
		<imageobject>
                <imagedata fileref="KhronosLogo.jpg" format="jpg" />
        </imageobject>
		<para />
    </refsect3>

</refentry>