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<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE book PUBLIC "-//OASIS//DTD DocBook MathML Module V1.1b1//EN"
"http://www.oasis-open.org/docbook/xml/mathml/1.1CR1/dbmathml.dtd">
<refentry>
<refentryinfo>
<keywordset>
<keyword>cl_khr_3d_image_writes</keyword>
</keywordset>
</refentryinfo>
<refmeta>
<refentrytitle>cl_khr_3d_image_writes</refentrytitle>
<refmiscinfo>
<copyright>
<year>2007-2011</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>3</manvolnum>
</refmeta>
<!-- ================================ SYNOPSIS -->
<refnamediv id="cl_khr_3d_image_writes">
<refname>cl_khr_3d_image_writes</refname>
<refpurpose>
Extension to enable writes to 3D image memory objects.
</refpurpose>
</refnamediv>
<!-- ALTERNATIVE SYNTAX SYNOPSIS (NON-FUNCTION) -->
<refsect2 id="synopsis">
<title>
</title>
<informaltable frame="none">
<tgroup cols="1" align="left" colsep="0" rowsep="0">
<colspec colname="col1" colnum="1" />
<tbody>
<row>
<entry>
#pragma OPENCL EXTENSION cl_khr_3d_image_writes : enable
</entry>
</row>
</tbody>
</tgroup>
</informaltable>
</refsect2>
<!-- ================================ DESCRIPTION -->
<refsect1 id="description" xmlns:xlink="http://www.w3.org/1999/xlink"><title>Description</title>
<para>
OpenCL supports 2D image memory objects that can be read or written by kernels. Reads
and writes to the same 2D image memory object are not supported in a kernel. OpenCL
also supports reads to 3D image memory objects in kernels. Writes to a 3D image memory
object are not supported unless the <function>cl_khr_3d_image_writes</function>
extension is implemented. Reads and writes to the same 3D image memory object are
not allowed in a kernel.
</para>
<para>
An application that wants to use this extension to write to 3D image memory objects
will need to include the <code>#pragma OPENCL EXTENSION cl_khr_3d_image_writes :
enable</code> directive in the OpenCL program source.
</para>
<para>
The <citerefentry href="write_image3d"><refentrytitle>built-in 3d image
write functions</refentrytitle></citerefentry> are implemented by the
<function>cl_khr_3d_image_writes</function> extension.
</para>
</refsect1>
<!-- ================================ EXAMPLE -->
<!-- DO NOT DELETE IN CASE AN EXAMPLE IS ADDED IN THE FUTURE -->
<!--
<refsect2 id="example1">
<title>
Example
</title>
<informaltable frame="none">
<tgroup cols="1" align="left" colsep="0" rowsep="0">
<colspec colname="col1" colnum="1" />
<tbody>
<row>
<entry>
Example goes here - it will be set in "code" type with white space preserved.
</entry>
</row>
</tbody>
</tgroup>
</informaltable>
</refsect2>
-->
<!-- ================================ SPECIFICATION -->
<!-- Set the "uri" attribute in the <olink /> element to the "named destination" for the PDF page
-->
<refsect1 id="specification"><title>Specification</title>
<para>
<imageobject>
<imagedata fileref="pdficon_small1.gif" format="gif" />
</imageobject>
<olink uri="cl_khr_3d_image_writes">OpenCL Specification</olink>
</para>
</refsect1>
<!-- ================================ ALSO SEE -->
<refsect1 id="seealso"><title>Also see</title>
<para>
<citerefentry><refentrytitle>EXTENSION</refentrytitle></citerefentry>,
<citerefentry><refentrytitle>cl_image_format</refentrytitle></citerefentry>,
<citerefentry href="imageFunctions"><refentrytitle>Image Functions</refentrytitle></citerefentry>
</para>
</refsect1>
<!-- ============================== COPYRIGHT -->
<!-- Content included from copyright.inc.xsl -->
<refsect3 id="Copyright"><title></title>
<imageobject>
<imagedata fileref="KhronosLogo.jpg" format="jpg" />
</imageobject>
<para />
</refsect3>
<!-- 18-Oct-2011 -->
</refentry>
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