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    <title>clCreateFromD3D10BufferKHR</title>
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    <div class="refentry">
      <a id="id-1"></a>
      <div class="titlepage"></div>
      <div xmlns="" class="refnamediv">
        <a xmlns="http://www.w3.org/1999/xhtml" id="clCreateFromD3D10BufferKHR"></a>
        <h1>clCreateFromD3D10BufferKHR</h1>
        <p>Creates an OpenCL buffer object from a Direct3D 10 buffer.</p>
      </div>
      <div class="refsynopsisdiv">
        <h2></h2>
        <div class="funcsynopsis">
          <table xmlns="" border="0" summary="Function synopsis" cellspacing="0" cellpadding="0">
            <tr valign="bottom">
              <td>
                <code xmlns="http://www.w3.org/1999/xhtml" class="funcdef">
                    <a class="link" href="abstractDataTypes.html" target="pagedisplay">cl_mem</a>
                    <strong class="fsfunc">clCreateFromD3D10BufferKHR</strong>
                (</code>
                <td><a xmlns="http://www.w3.org/1999/xhtml" class="link" href="abstractDataTypes.html" target="pagedisplay">cl_context</a> <var xmlns="http://www.w3.org/1999/xhtml" class="pdparam">context</var>, </td>
              </td>
            </tr>
            <tr valign="top">
              <td> </td>
              <td><a xmlns="http://www.w3.org/1999/xhtml" class="link" href="enums.html#cl_mem_flags" target="pagedisplay">cl_mem_flags</a> <var xmlns="http://www.w3.org/1999/xhtml" class="pdparam">flags</var>, </td>
            </tr>
            <tr valign="top">
              <td> </td>
              <td>ID3D10Buffer <var xmlns="http://www.w3.org/1999/xhtml" class="pdparam">*resource</var>, </td>
            </tr>
            <tr valign="top">
              <td> </td>
              <td>
                    <a xmlns="http://www.w3.org/1999/xhtml" class="link" href="scalarDataTypes.html" target="pagedisplay">cl_int</a>
                     <var xmlns="http://www.w3.org/1999/xhtml" class="pdparam">*errcode_ret</var>
                <code>)</code></td>
            </tr>
          </table>
        </div>
      </div>
      <div class="refsect1">
        <a id="parameters"></a>
        <h2>Parameters</h2>
        <div class="variablelist">
          <dl class="variablelist">
            <dt>
              <span class="term">
                <code class="varname">context</code>
              </span>
            </dt>
            <dd>
              <p>
                    A valid OpenCL context created from a Direct3D 10 device.
                </p>
            </dd>
            <dt>
              <span class="term">
                <code class="varname">flags</code>
              </span>
            </dt>
            <dd>
              <p>
                  A bit-field that is used to specify usage information. May be
                  <code class="constant">CL_MEM_READ_ONLY</code>, <code class="constant">CL_MEM_WRITE_ONLY</code>,
                  or <code class="constant">CL_MEM_READ_WRITE</code>. (See the table for
                  <a class="citerefentry" href="clCreateBuffer.html"><span class="citerefentry"><span class="refentrytitle">clCreateBuffer</span></span></a>
                  for more information.)
                </p>
            </dd>
            <dt>
              <span class="term">
                <code class="varname">resource</code>
              </span>
            </dt>
            <dd>
              <p>
                    A pointer to the Direct3D 10 buffer to share.
                </p>
            </dd>
            <dt>
              <span class="term">
                <code class="varname">errcode_ret</code>
              </span>
            </dt>
            <dd>
              <p>
                    An appropriate error code. If <code class="varname">errcode_ret</code> is NULL, no error code is returned.
                </p>
            </dd>
          </dl>
        </div>
      </div>
      <div class="refsect1">
        <a id="notes"></a>
        <h2>Notes</h2>
        <p>
          The size of the returned OpenCL buffer object is the same as the size
          of <code class="varname">resource</code>.  This call will increment the internal Direct3D
          reference count on <code class="varname">resource</code>. The internal Direct3D reference count
          on <code class="varname">resource</code> will be decremented when the OpenCL reference count
          on the returned OpenCL memory object drops to zero.
        </p>
        <p>
      General information about sharing memory objects with Direct3D 10 follows.
    </p>
        <p>
        The goal of this extension is to provide interoperability between
        OpenCL and Direct3D 10. This is designed to function analogously
        to the <a class="citerefentry" href="cl_khr_gl_sharing.html"><span class="citerefentry"><span class="refentrytitle">OpenGL
        interoperability</span></span></a> as defined in sections 9.7 and 9.8. If
        this extension is supported by an implementation, the string "cl_khr_d3d10_sharing"
        will be present in the <code class="constant">CL_PLATFORM_EXTENSIONS</code>
        (see <a class="citerefentry" href="clGetPlatformInfo.html"><span class="citerefentry"><span class="refentrytitle">clGetPlatformInfo</span></span></a>)
        or <code class="constant">CL_DEVICE_EXTENSIONS</code> 
        (see <a class="citerefentry" href="clGetDeviceInfo.html"><span class="citerefentry"><span class="refentrytitle">clGetDeviceInfo</span></span></a>).
    </p>
        <p>
        As currently proposed the interfaces for this extension would be provided in
        <code class="code">cl_d3d10.h</code>.
    </p>
        <p>
        
        The OpenCL functions enabled by the <code class="function">cl_khr_d3d10_sharing</code> 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.
    </p>
        <h4><a id="id-1.6.7"></a>Lifetime of Shared [D3D10] Objects</h4>
        <p>
        An OpenCL memory object created from a Direct3D 10 resource remains valid as long as the 
        corresponding Direct3D 10 resource has not been deleted. If the Direct3D 10 resource is deleted 
        through the Direct3D 10 API, subsequent use of the OpenCL memory object will result in 
        undefined behavior, including but not limited to possible OpenCL errors, data corruption, and 
        program termination.
    </p>
        <p>
        The successful creation of a cl_context against a Direct3D 10 device specified via the context 
        create parameter <code class="constant">CL_CONTEXT_D3D10_DEVICE_KHR</code> will increment the internal Direct3D 
        reference count on the specified Direct3D 10 device. The internal Direct3D reference count on 
        that Direct3D 10 device will be decremented when the OpenCL reference count on the returned 
        OpenCL context drops to zero.
    </p>
        <p>
        The OpenCL context and corresponding command-queues are dependent on the existence of the 
        Direct3D 10 device from which the OpenCL context was created. If the Direct3D 10 device is 
        deleted through the Direct3D 10 API, subsequent use of the OpenCL context will result in 
        undefined behavior, including but not limited to possible OpenCL errors, data corruption, and 
        program termination.
    </p>
      </div>
      <div class="refsect1">
        <a id="errors"></a>
        <h2>Errors</h2>
        <p>
          Returns a valid non-zero OpenCL buffer
          object and <code class="varname">errcode_ret</code> is set to <span class="errorname">CL_SUCCESS</span>
          if the buffer object is created successfully. Otherwise, it returns a NULL value with
          one of the following error values returned in <code class="varname">errcode_ret</code>:
        </p>
        <div class="itemizedlist">
          <ul class="itemizedlist" style="list-style-type: disc; ">
            <li class="listitem" style="list-style-type: disc"><span class="errorname">CL_INVALID_CONTEXT</span> if <code class="varname">context</code> 
                is not a valid context.
            </li>
            <li class="listitem" style="list-style-type: disc"><span class="errorname">CL_INVALID_VALUE</span> if values specified in <code class="varname">flags</code> are
                not valid.
            </li>
            <li class="listitem" style="list-style-type: disc"><span class="errorname">CL_INVALID_D3D10_RESOURCE_KHR</span> if <code class="varname">resource</code>
              is not a Direct3D 10 buffer resource, if <code class="varname">resource</code> was created with
              the <code class="constant">D3D10_USAGE</code> flag <code class="constant">D3D10_USAGE_IMMUTABLE</code>,
              if a <span class="type">cl_mem</span> from <code class="varname">resource</code> has already been created using
              <code class="function">clCreateFromD3D10BufferKHR</code>, or if <code class="varname">context</code>
              was not created against the same Direct3D 10 device from which
              <code class="varname">resource</code> was created.
            </li>
            <li class="listitem" style="list-style-type: disc"><span class="errorname">CL_OUT_OF_HOST_MEMORY</span> if there is a failure to allocate
              resources required by the OpenCL implementation on the host.
            </li>
          </ul>
        </div>
      </div>
      <div class="refsect1">
        <a id="specification"></a>
        <h2>Specification</h2>
        <p><img src="pdficon_small1.gif" />
            <a href="https://www.khronos.org/registry/cl/specs/opencl-2.1-extensions.pdf#namedest=clCreateFromD3D10BufferKHR" target="OpenCL Spec">OpenCL Specification</a>
        </p>
      </div>
      <div class="refsect1">
        <a id="seealso"></a>
        <h2>Also see</h2>
        <p>
            <a class="citerefentry" href="cl_khr_d3d10_sharing.html"><span class="citerefentry"><span class="refentrytitle">cl_khr_d3d10_sharing</span></span></a>
        </p>
      </div>
      <div xmlns="" class="refsect3" lang="en" xml:lang="en"><a xmlns="http://www.w3.org/1999/xhtml" id="Copyright"></a><h4 xmlns="http://www.w3.org/1999/xhtml"></h4><img xmlns="http://www.w3.org/1999/xhtml" src="KhronosLogo.jpg" /><p xmlns="http://www.w3.org/1999/xhtml"></p>Copyright © 2007-2015 The Khronos Group Inc.
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"Materials"), to deal in the Materials without restriction, including
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