sdk/1.1/docs/man/cl_khr_d3d10_sharing.xml

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<refentry>
    <refentryinfo>
        <keywordset>
            <keyword>cl_khr_d3d10_sharing</keyword>
        </keywordset>
    </refentryinfo>

    <refmeta>                                    
        <refentrytitle>cl_khr_d3d10_sharing</refentrytitle>

        <refmiscinfo>
            <copyright>
                <year>2007-2010</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_d3d10_sharing">             
        <refname>cl_khr_d3d10_sharing</refname>

        <refpurpose>
            Provide interoperability between OpenCL and Direct3D 10.
        </refpurpose>
    </refnamediv>


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        </title>

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                        <entry>
#pragma OPENCL EXTENSION cl_khr_d3d10_sharing : enable
                        </entry>
                    </row>
                </tbody>
            </tgroup>
        </informaltable>
    </refsect2>


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


    <refsect1 xmlns:xlink="http://www.w3.org/1999/xlink" id="description"><title>Description</title>
        <para>
            The interfaces for this extension are provided in the header file <code>cl_d3d10.h</code>.
        </para>

        <para>
            If the <function>cl_khr_d3d10_sharing</function> extension is supported, then the following functions
            are enabled:
        </para>
         <itemizedlist mark="disc">
            <listitem>
                <citerefentry><refentrytitle>clGetDeviceIDsFromD3D10KHR</refentrytitle></citerefentry>
            </listitem>
            <listitem>
                <citerefentry><refentrytitle>clCreateFromD3D10BufferKHR</refentrytitle></citerefentry>
            </listitem>
            <listitem>
                <citerefentry><refentrytitle>clCreateFromD3D10Texture2DKHR</refentrytitle></citerefentry>
            </listitem>
            <listitem>
                <citerefentry><refentrytitle>clCreateFromD3D10Texture3DKHR</refentrytitle></citerefentry>
            </listitem>
            <listitem>
                <citerefentry><refentrytitle>clEnqueueAcquireD3D10ObjectsKHR</refentrytitle></citerefentry>
            </listitem>
            <listitem>
                <citerefentry><refentrytitle>clEnqueueReleaseD3D10ObjectsKHR</refentrytitle></citerefentry>
            </listitem>
        </itemizedlist>
        
        <para>
            The OpenCL functions enabled by the <function>cl_khr_d3d10_sharing</function> extension allow applications 
            to use Direct3D 10 resources as OpenCL memory objects. This allows efficient sharing of data 
            between OpenCL and Direct3D 10. The OpenCL API may be used to execute kernels that read and/or 
            write memory objects that are also Direct3D 10 resources. An OpenCL image object may be created 
            from a Direct3D 10 texture resource. An OpenCL buffer object may be created from a Direct3D 10 
            buffer resource. OpenCL memory objects may be created from Direct3D 10 objects if and only if the 
            OpenCL context has been created from a Direct3D 10 device.
        </para>
        <para>
            When the <function>cl_khr_d3d10_sharing</function> extension is enabled, this extends the list of allowable
            values in certain parameters of certain functions, as follows:
        </para>
        <itemizedlist mark="disc">
            <listitem>
                <code>CL_CONTEXT_D3D10_DEVICE_KHR</code> is accepted as a property name in the <varname>properties</varname> 
                parameter of <citerefentry><refentrytitle>clCreateContext</refentrytitle></citerefentry> and
                <citerefentry><refentrytitle>clCreateContextFromType</refentrytitle></citerefentry>.
            </listitem>
            <listitem>
                <code>CL_CONTEXT_D3D10_PREFER_SHARED_RESOURCES_KHR</code> is accepted as a value in the 
                <varname>param_name</varname> parameter of 
                <citerefentry><refentrytitle>clGetContextInfo</refentrytitle></citerefentry>.
            </listitem>
            <listitem>
                <code>CL_MEM_D3D10_RESOURCE_KHR</code> is accepted as a value in the 
                <varname>param_name</varname> parameter of 
                <citerefentry><refentrytitle>clGetMemObjectInf</refentrytitle></citerefentry>.
            </listitem>
            <listitem>
                <code>CL_IMAGE_D3D10_SUBRESOURCE_KHR</code> is accepted as a value in the 
                <varname>param_name</varname> parameter of 
                <citerefentry><refentrytitle>clGetImageInfo</refentrytitle></citerefentry>.
            </listitem>
            <listitem>
                <code>CL_COMMAND_ACQUIRE_D3D10_OBJECTS_KHR</code> and <code>CL_COMMAND_RELEASE_D3D10_OBJECTS_KHR</code>
                are returned in the <varname>param_value</varname> parameter of 
                <citerefentry><refentrytitle>clGetEventInfo</refentrytitle></citerefentry> when <varname>param_name</varname> 
                is <code>CL_EVENT_COMMAND_TYPE</code>.
            </listitem>
            <listitem>
                <code>CL_INVALID_D3D10_DEVICE_KHR</code> is returned by
                <citerefentry><refentrytitle>clCreateContext</refentrytitle></citerefentry> and
                <citerefentry><refentrytitle>clCreateContextFromType</refentrytitle></citerefentry> if the Direct3D 10 
                device specified for interoperability is not compatible with the devices against which the context is to 
                be created.
            </listitem>
            <listitem>
                <code>CL_INVALID_D3D10_RESOURCE_KHR</code> is returned by 
                <citerefentry><refentrytitle>clCreateFromD3D10BufferKHR</refentrytitle></citerefentry> when resource is 
                not a Direct3D 10 buffer object, and by 
                <citerefentry><refentrytitle>clCreateFromD3D10Texture2DKHR</refentrytitle></citerefentry> and
                <citerefentry><refentrytitle>clCreateFromD3D10Texture3DKHR</refentrytitle></citerefentry> when 
                resource is not a Direct3D 10 texture object.
            </listitem>
            <listitem>
                <code>CL_D3D10_RESOURCE_ALREADY_ACQUIRED_KHR</code> is returned by 
                <citerefentry><refentrytitle>clEnqueueAcquireD3D10ObjectsKHR</refentrytitle></citerefentry> when 
                any of mem_objects are currently acquired by OpenCL.
            </listitem>
            <listitem>
                <code>CL_D3D10_RESOURCE_NOT_ACQUIRED_KHR</code> is returned by 
                <citerefentry><refentrytitle>clEnqueueReleaseD3D10ObjectsKHR</refentrytitle></citerefentry> when 
                any of mem_objects are not currently acquired by OpenCL.
            </listitem>
        </itemizedlist>
    </refsect1>


<!-- ================================ EXAMPLE  -->
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            Example
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<!-- ================================ SPECIFICATION  -->
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            <olink uri="cl_khr_d3d10_sharing">OpenCL Specification</olink>
        </para>
    </refsect1>


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

    <refsect1 id="seealso"><title>Also see</title>
        <para>
            <citerefentry><refentrytitle>EXTENSION</refentrytitle></citerefentry>,
            <citerefentry><refentrytitle>clGetDeviceIDsFromD3D10KHR</refentrytitle></citerefentry>, 
            <citerefentry><refentrytitle>clCreateFromD3D10BufferKHR</refentrytitle></citerefentry>, 
            <citerefentry><refentrytitle>clCreateFromD3D10Texture2DKHR</refentrytitle></citerefentry>, 
            <citerefentry><refentrytitle>clCreateFromD3D10Texture3DKHR</refentrytitle></citerefentry>, 
            <citerefentry><refentrytitle>clEnqueueAcquireD3D10ObjectsKHR</refentrytitle></citerefentry>, 
            <citerefentry><refentrytitle>clEnqueueReleaseD3D10ObjectsKHR</refentrytitle></citerefentry>
        </para>
    </refsect1>



<!-- ============================== COPYRIGHT -->
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