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| <title>clIcdGetPlatformIDsKHR</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="clIcdGetPlatformIDsKHR"></a> |
| <h1>clIcdGetPlatformIDsKHR</h1> |
| <p>Obtain the list of platforms accessible through the Khronos ICD Loader.</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="scalarDataTypes.html" target="pagedisplay">cl_int</a> |
| <strong class="fsfunc">clIcdGetPlatformIDsKHR</strong> |
| (</code> |
| <td> |
| <a xmlns="http://www.w3.org/1999/xhtml" class="link" href="scalarDataTypes.html" target="pagedisplay">cl_uint</a> |
| <var xmlns="http://www.w3.org/1999/xhtml" class="pdparam">num_entries</var> |
| , </td> |
| </td> |
| </tr> |
| <tr valign="top"> |
| <td> </td> |
| <td> |
| <a xmlns="http://www.w3.org/1999/xhtml" class="link" href="abstractDataTypes.html" target="pagedisplay">cl_platform_id</a> |
| <var xmlns="http://www.w3.org/1999/xhtml" class="pdparam">*platforms</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_uint</a> |
| <var xmlns="http://www.w3.org/1999/xhtml" class="pdparam">*num_platforms</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">num_entries</code> |
| </span> |
| </dt> |
| <dd> |
| <p> |
| The number of <span class="type">cl_platform_id</span> entries that can |
| be added to <code class="varname">platforms</code>. If <code class="varname">platforms</code> |
| is not NULL, then <code class="varname">num_entries</code> must be greater than zero. |
| </p> |
| </dd> |
| <dt> |
| <span class="term"> |
| <code class="varname">platforms</code> |
| </span> |
| </dt> |
| <dd> |
| <p> |
| Returns a list of OpenCL platforms available for access through the |
| Khronos ICD Loader. The <span class="type">cl_platform_id</span> values returned in |
| <code class="varname">platforms</code> are ICD compatible and can be used to |
| identify a specific OpenCL platform. If the <code class="varname">platforms</code> |
| argument is NULL, then this argument is ignored. The number of |
| OpenCL platforms returned is the minimum of the value specified by |
| <code class="varname">num_entries</code> or the number of OpenCL platforms available. |
| </p> |
| </dd> |
| <dt> |
| <span class="term"> |
| <code class="varname">num_platforms</code> |
| </span> |
| </dt> |
| <dd> |
| <p> |
| Returns the number of OpenCL platforms available. If |
| <code class="varname">num_platforms</code> is NULL, then this argument is ignored. |
| </p> |
| </dd> |
| </dl> |
| </div> |
| </div> |
| <div class="refsect1"> |
| <a id="notes"></a> |
| <h2>Notes</h2> |
| <p> |
| This function is enabled by the |
| <a class="citerefentry" href="cl_khr_icd.html"><span class="citerefentry"><span class="refentrytitle">cl_khr_icd</span></span></a> |
| extension. |
| </p> |
| </div> |
| <div class="refsect1"> |
| <a id="errors"></a> |
| <h2>Errors</h2> |
| <p> |
| Returns <span class="errorname">CL_SUCCESS</span> if the function is executed |
| successfully and there are a non zero number of platforms available, |
| else it returns on the errors below: |
| </p> |
| <div class="itemizedlist"> |
| <ul class="itemizedlist" style="list-style-type: disc; "> |
| <li class="listitem" style="list-style-type: disc"><span class="errorname">CL_PLATFORM_NOT_FOUND_KHR</span> if zero platforms are available. |
| </li> |
| <li class="listitem" style="list-style-type: disc"><span class="errorname">CL_INVALID_VALUE</span> if <code class="varname">num_entries</code> |
| is equal to zero and <code class="varname">platforms</code> is not NULL or if both |
| <code class="varname">num_platforms</code> and <code class="varname">platforms</code> are NULL. |
| </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#page=130" target="OpenCL Spec">OpenCL Specification</a> |
| </p> |
| </div> |
| <div class="refsect1"> |
| <a id="seealso"></a> |
| <h2>Also see</h2> |
| <p> |
| <a class="citerefentry" href="clGetPlatformIDs.html"><span class="citerefentry"><span class="refentrytitle">clGetPlatformIDs</span></span></a>, |
| <a class="citerefentry" href="cl_khr_icd.html"><span class="citerefentry"><span class="refentrytitle">cl_khr_icd</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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