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| <title>cl_khr_dx9_media_sharing</title> |
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| <a id="id-1"></a> |
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| <div xmlns="" class="refnamediv"> |
| <a xmlns="http://www.w3.org/1999/xhtml" id="cl_khr_dx9_media_sharing"></a> |
| <h1>cl_khr_dx9_media_sharing</h1> |
| <p> |
| Provide interoperability between OpenCL and selecgted adapter APIs (only DX9 at this time). |
| </p> |
| </div> |
| <div class="refsect2"> |
| <a id="synopsis"></a> |
| <h3> |
| </h3> |
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| <tbody> |
| <tr> |
| <td align="left"> |
| #pragma OPENCL EXTENSION cl_khr_dx9_media_sharing : enable |
| </td> |
| </tr> |
| </tbody> |
| </table> |
| </div> |
| </div> |
| <div class="refsect1"> |
| <a id="description"></a> |
| <h2>Description</h2> |
| <p> |
| The interfaces for this extension are provided in the header file <code class="code">cl_dx9_media_sharing.h</code>. |
| </p> |
| <p> |
| If the <code class="function">cl_khr_dx9_media_sharing</code> extension is supported, then |
| the following functions are enabled: |
| </p> |
| <div class="itemizedlist"> |
| <ul class="itemizedlist" style="list-style-type: disc; "> |
| <li class="listitem" style="list-style-type: disc"> |
| <a class="citerefentry" href="clGetDeviceIDsFromDX9MediaAdapterKHR.html"> |
| <span class="citerefentry"> |
| <span class="refentrytitle">clGetDeviceIDsFromDX9MediaAdapterKHR</span> |
| </span> |
| </a> |
| </li> |
| <li class="listitem" style="list-style-type: disc"> |
| <a class="citerefentry" href="clCreateFromDX9MediaSurfaceKHR.html"> |
| <span class="citerefentry"> |
| <span class="refentrytitle">clCreateFromDX9MediaSurfaceKHR</span> |
| </span> |
| </a> |
| </li> |
| <li class="listitem" style="list-style-type: disc"> |
| <a class="citerefentry" href="clEnqueueAcquireDX9MediaSurfacesKHR.html"> |
| <span class="citerefentry"> |
| <span class="refentrytitle">clEnqueueAcquireDX9MediaSurfacesKHR</span> |
| </span> |
| </a> |
| </li> |
| <li class="listitem" style="list-style-type: disc"> |
| <a class="citerefentry" href="clEnqueueReleaseDX9MediaSurfacesKHR.html"> |
| <span class="citerefentry"> |
| <span class="refentrytitle">clEnqueueReleaseDX9MediaSurfacesKHR</span> |
| </span> |
| </a> |
| </li> |
| </ul> |
| </div> |
| <p> |
| The OpenCL functions enabled by the <code class="function">cl_khr_dx9_media_sharing</code> |
| extension allow applications to use media surfaces as OpenCL memory objects. This |
| allows efficient sharing of data between OpenCL and selected adapter APIs (only DX9 |
| for now). If this extension is supported, an OpenCL image object can be created from |
| a media surface and the OpenCL API can be used to execute kernels that read and/or |
| write memory objects that are media surfaces. Note that OpenCL memory objects may |
| be created from the adapter media surface if and only if the OpenCL context has been |
| created from that adapter. |
| </p> |
| <p> |
| If this extension is supported by an implementation, |
| the string "cl_khr_dx9_media_sharing" will be present in the |
| <code class="constant">CL_PLATFORM_EXTENSIONS</code> or <code class="constant">CL_DEVICE_EXTENSIONS</code> |
| string described in the table of allowed values for <code class="varname">param_name</code> |
| for <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_dx9_media_sharing.h</code>. |
| </p> |
| </div> |
| <div class="refsect1"> |
| <a id="specification"></a> |
| <h2>Specification</h2> |
| <p> |
| <img src="pdficon_small1.gif" /> |
| |
| <a href="http://www.khronos.org/registry/cl/specs/opencl-1.2-extensions.pdf#page=83" target="OpenCL Spec">OpenCL Specification</a> |
| </p> |
| </div> |
| <div class="refsect1"> |
| <a id="seealso"></a> |
| <h2>Also see</h2> |
| <p> |
| <a class="citerefentry" href="EXTENSION.html"><span class="citerefentry"><span class="refentrytitle">EXTENSION</span></span></a>, |
| <a class="citerefentry" href="clGetDeviceIDsFromDX9MediaAdapterKHR.html"><span class="citerefentry"><span class="refentrytitle">clGetDeviceIDsFromDX9MediaAdapterKHR</span></span></a>, |
| <a class="citerefentry" href="clCreateFromDX9MediaSurfaceKHR.html"><span class="citerefentry"><span class="refentrytitle">clCreateFromDX9MediaSurfaceKHR</span></span></a>, |
| <a class="citerefentry" href="clEnqueueAcquireDX9MediaSurfacesKHR.html"><span class="citerefentry"><span class="refentrytitle">clEnqueueAcquireDX9MediaSurfacesKHR</span></span></a>, |
| <a class="citerefentry" href="clEnqueueReleaseDX9MediaSurfacesKHR.html"><span class="citerefentry"><span class="refentrytitle">clEnqueueReleaseDX9MediaSurfacesKHR</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 © 2007-2011 The Khronos Group Inc. |
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