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| <title>clGetPlatformInfo</title> |
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| <meta name="keywords" content="clGetPlatformInfo" /> |
| </head> |
| <body> |
| <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="clGetPlatformInfo"></a> |
| <h1>clGetPlatformInfo</h1> |
| <p>Get specific information about the OpenCL platform.</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">clGetPlatformInfo</strong>(</code> |
| <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">platform</var>, </td> |
| </td> |
| </tr> |
| <tr valign="top"> |
| <td> </td> |
| <td><a xmlns="http://www.w3.org/1999/xhtml" class="link" href="enums.html#cl_platform_info" target="pagedisplay">cl_platform_info</a> <var xmlns="http://www.w3.org/1999/xhtml" class="pdparam">param_name</var>, </td> |
| </tr> |
| <tr valign="top"> |
| <td> </td> |
| <td><a xmlns="http://www.w3.org/1999/xhtml" class="link" href="scalarDataTypes.html" target="pagedisplay">size_t</a> <var xmlns="http://www.w3.org/1999/xhtml" class="pdparam">param_value_size</var>, </td> |
| </tr> |
| <tr valign="top"> |
| <td> </td> |
| <td><a xmlns="http://www.w3.org/1999/xhtml" class="link" href="scalarDataTypes.html" target="pagedisplay">void</a> <var xmlns="http://www.w3.org/1999/xhtml" class="pdparam">*param_value</var>, </td> |
| </tr> |
| <tr valign="top"> |
| <td> </td> |
| <td><a xmlns="http://www.w3.org/1999/xhtml" class="link" href="scalarDataTypes.html" target="pagedisplay">size_t</a> <var xmlns="http://www.w3.org/1999/xhtml" class="pdparam">*param_value_size_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">platform</code> |
| </span> |
| </dt> |
| <dd> |
| <p> |
| The platform ID returned by |
| <a class="citerefentry" href="clGetPlatformIDs.html"><span class="citerefentry"><span class="refentrytitle">clGetPlatformIDs</span></span></a> |
| or can be NULL. If <code class="varname">platform</code> is NULL, the behavior is |
| implementation-defined. |
| </p> |
| </dd> |
| <dt> |
| <span class="term"> |
| <code class="varname">param_name</code> |
| </span> |
| </dt> |
| <dd> |
| <p> |
| An enumeration constant that identifies the platform information being |
| queried. It can be one of the values specified in the table below. |
| </p> |
| </dd> |
| <dt> |
| <span class="term"> |
| <code class="varname">param_value</code> |
| </span> |
| </dt> |
| <dd> |
| <p> |
| A pointer to memory location where appropriate values for a |
| given <code class="varname">param_name</code> will be returned. Possible |
| <code class="varname">param_value</code> values returned are listed in the table |
| below. If <code class="varname">param_value</code> is NULL, it is ignored. |
| </p> |
| </dd> |
| <dt> |
| <span class="term"> |
| <code class="varname">param_value_size</code> |
| </span> |
| </dt> |
| <dd> |
| <p> |
| Specifies the size in bytes of memory pointed to by |
| <code class="varname">param_value</code>. This size in bytes must be ≥ size of return |
| type specified in the table below. |
| </p> |
| </dd> |
| <dt> |
| <span class="term"> |
| <code class="varname">param_value_size_ret</code> |
| </span> |
| </dt> |
| <dd> |
| <p> |
| Returns the actual size in bytes of data being queried by |
| <code class="varname">param_value</code>. If <code class="varname">param_value_size_ret</code> |
| is NULL, it is ignored |
| </p> |
| </dd> |
| </dl> |
| </div> |
| <h4><a id="id-1.5.3"></a>OpenCL Platform Queries</h4> |
| <div class="informaltable"> |
| <table class="informaltable" border="1"> |
| <colgroup> |
| <col align="left" class="col1" /> |
| <col align="left" class="col2" /> |
| <col align="left" class="col2" /> |
| </colgroup> |
| <thead> |
| <tr> |
| <th align="left">cl_platform_info</th> |
| <th align="left">Return Type</th> |
| <th align="left">Description</th> |
| </tr> |
| </thead> |
| <tbody> |
| <tr> |
| <td align="left"> |
| <code class="constant">CL_PLATFORM_PROFILE</code> |
| </td> |
| <td align="left">char[]</td> |
| <td align="left"> |
| <p> |
| OpenCL profile string. Returns the profile name supported by the implementation. The |
| profile name returned can be one of the following strings: |
| </p> |
| |
| <p> |
| FULL_PROFILE - if the implementation supports the OpenCL specification (functionality |
| defined as part of the core specification and does not require any extensions to |
| be supported). |
| </p> |
| |
| <p> |
| EMBEDDED_PROFILE - if the implementation supports the OpenCL embedded profile. The |
| embedded profile is defined to be a subset for each version of OpenCL. |
| The embedded profile for |
| OpenCL 2.1 is described in section 7. |
| </p> </td> |
| </tr> |
| <tr> |
| <td align="left"> |
| <code class="constant">CL_PLATFORM_VERSION</code> |
| </td> |
| <td align="left">char[]</td> |
| <td align="left"> |
| <p>OpenCL version string. Returns the OpenCL version supported by the |
| implementation. This version string has the following format: |
| </p> |
| |
| <p> |
| <code class="varname">OpenCL<space><major_version.minor_version><space><platform-specific |
| information></code> |
| </p> |
| |
| <p> |
| The <code class="varname">major_version.minor_version</code> value returned will be 2.1. |
| </p> |
| </td> |
| </tr> |
| <tr> |
| <td align="left"> |
| <code class="constant">CL_PLATFORM_NAME</code> |
| </td> |
| <td align="left">char[]</td> |
| <td align="left">Platform name string.</td> |
| </tr> |
| <tr> |
| <td align="left"> |
| <code class="constant">CL_PLATFORM_VENDOR</code> |
| </td> |
| <td align="left">char[]</td> |
| <td align="left">Platform vendor string.</td> |
| </tr> |
| <tr> |
| <td align="left"> |
| <code class="constant">CL_PLATFORM_EXTENSIONS</code> |
| </td> |
| <td align="left">char[]</td> |
| <td align="left"> |
| <p>Returns a space-separated list of extension names (the extension names |
| themselves do not contain any spaces) supported by the platform. Extensions |
| defined here must be supported by all devices associated with this platform. |
| </p></td> |
| </tr> |
| <tr> |
| <td align="left"> |
| <code class="constant">CL_PLATFORM_HOST_TIMER_RESOLUTION</code> |
| </td> |
| <td align="left">cl_ulong</td> |
| <td align="left"> |
| <p>Returns the resolution of the host timer in |
| nanoseconds as used by |
| <a class="citerefentry" href="clGetDeviceAndHostTimer.html"><span class="citerefentry"><span class="refentrytitle">clGetDeviceAndHostTimer</span></span></a>. |
| </p></td> |
| </tr> |
| <tr> |
| <td align="left"> |
| <code class="constant">CL_PLATFORM_ICD_SUFFIX_KHR</code> |
| </td> |
| <td align="left">char[]</td> |
| <td align="left"> |
| <p> |
| If the <a class="citerefentry" href="cl_khr_icd.html"><span class="citerefentry"><span class="refentrytitle">cl_khr_icd</span></span></a> |
| extension is enabled, |
| the function name suffix used to |
| identify extension functions to be |
| directed to this platform by the ICD |
| Loader. |
| </p> |
| </td> |
| </tr> |
| </tbody> |
| </table> |
| </div> |
| </div> |
| <div class="refsect1"> |
| <a id="notes"></a> |
| <h2>Notes</h2> |
| <p> |
| A null terminated string is returned by OpenCL query function calls if the return |
| type of the information being queried is a char[]. |
| </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. Otherwise, it returns the following: |
| (The OpenCL specification does not describe the order |
| of precedence for error codes returned by API calls) |
| </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_PLATFORM</span> if <code class="varname">platform</code> is not a valid platform. |
| </li> |
| <li class="listitem" style="list-style-type: disc"><span class="errorname">CL_INVALID_VALUE</span> if <code class="varname">param_name</code> is not one of |
| the supported values or if size in bytes specified by <code class="varname">param_value_size</code> |
| is less than size of return type and <code class="varname">param_value</code> is not a NULL value. |
| </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.pdf#page=62" 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> |
| </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. |
| 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 |
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