102f4aeb0Sopenharmony_ci<?xml version="1.0" encoding="UTF-8" standalone="no"?> 202f4aeb0Sopenharmony_ci<!DOCTYPE html><html xmlns="http://www.w3.org/1999/xhtml"> 302f4aeb0Sopenharmony_ci <head> 402f4aeb0Sopenharmony_ci <title xmlns:xlink="http://www.w3.org/1999/xlink">eglGetSyncAttrib - EGL Reference Pages</title> 502f4aeb0Sopenharmony_ci <link rel="stylesheet" type="text/css" href="khronos-man.css"/> 602f4aeb0Sopenharmony_ci <meta name="generator" content="DocBook XSL Stylesheets V1.79.1"/> 702f4aeb0Sopenharmony_ci </head> 802f4aeb0Sopenharmony_ci <body> 902f4aeb0Sopenharmony_ci <header/> 1002f4aeb0Sopenharmony_ci <div class="refentry" id="eglGetSyncAttrib"> 1102f4aeb0Sopenharmony_ci <div class="titlepage"/> 1202f4aeb0Sopenharmony_ci <div class="refnamediv"> 1302f4aeb0Sopenharmony_ci <h2>Name</h2> 1402f4aeb0Sopenharmony_ci <p>eglGetSyncAttrib — 1502f4aeb0Sopenharmony_ci Return an attribute of a sync object 1602f4aeb0Sopenharmony_ci </p> 1702f4aeb0Sopenharmony_ci </div> 1802f4aeb0Sopenharmony_ci <div class="refsynopsisdiv"> 1902f4aeb0Sopenharmony_ci <h2>C Specification</h2> 2002f4aeb0Sopenharmony_ci <div class="funcsynopsis"> 2102f4aeb0Sopenharmony_ci <table style="border: 0; cellspacing: 0; cellpadding: 0;" class="funcprototype-table"> 2202f4aeb0Sopenharmony_ci <tr> 2302f4aeb0Sopenharmony_ci <td> 2402f4aeb0Sopenharmony_ci <code class="funcdef">EGLBoolean <strong class="fsfunc">eglGetSyncAttrib</strong>(</code> 2502f4aeb0Sopenharmony_ci </td> 2602f4aeb0Sopenharmony_ci <td>(EGLDisplay <var class="pdparam">display</var>, </td> 2702f4aeb0Sopenharmony_ci </tr> 2802f4aeb0Sopenharmony_ci <tr> 2902f4aeb0Sopenharmony_ci <td> </td> 3002f4aeb0Sopenharmony_ci <td>EGLSync <var class="pdparam">sync</var>, </td> 3102f4aeb0Sopenharmony_ci </tr> 3202f4aeb0Sopenharmony_ci <tr> 3302f4aeb0Sopenharmony_ci <td> </td> 3402f4aeb0Sopenharmony_ci <td>EGLint <var class="pdparam">attribute</var>, </td> 3502f4aeb0Sopenharmony_ci </tr> 3602f4aeb0Sopenharmony_ci <tr> 3702f4aeb0Sopenharmony_ci <td> </td> 3802f4aeb0Sopenharmony_ci <td>EGLAttrib *<var class="pdparam">value</var><code>)</code>;</td> 3902f4aeb0Sopenharmony_ci </tr> 4002f4aeb0Sopenharmony_ci </table> 4102f4aeb0Sopenharmony_ci <div class="funcprototype-spacer"> </div> 4202f4aeb0Sopenharmony_ci </div> 4302f4aeb0Sopenharmony_ci </div> 4402f4aeb0Sopenharmony_ci <div class="refsect1" id="parameters"> 4502f4aeb0Sopenharmony_ci <h2>Parameters</h2> 4602f4aeb0Sopenharmony_ci <div class="variablelist"> 4702f4aeb0Sopenharmony_ci <dl class="variablelist"> 4802f4aeb0Sopenharmony_ci <dt> 4902f4aeb0Sopenharmony_ci <span class="term"> 5002f4aeb0Sopenharmony_ci <em class="parameter"> 5102f4aeb0Sopenharmony_ci <code>display</code> 5202f4aeb0Sopenharmony_ci </em> 5302f4aeb0Sopenharmony_ci </span> 5402f4aeb0Sopenharmony_ci </dt> 5502f4aeb0Sopenharmony_ci <dd> 5602f4aeb0Sopenharmony_ci <p> 5702f4aeb0Sopenharmony_ci Specifies the <abbr class="acronym">EGL</abbr> display connection. 5802f4aeb0Sopenharmony_ci </p> 5902f4aeb0Sopenharmony_ci </dd> 6002f4aeb0Sopenharmony_ci <dt> 6102f4aeb0Sopenharmony_ci <span class="term"> 6202f4aeb0Sopenharmony_ci <em class="parameter"> 6302f4aeb0Sopenharmony_ci <code>sync</code> 6402f4aeb0Sopenharmony_ci </em> 6502f4aeb0Sopenharmony_ci </span> 6602f4aeb0Sopenharmony_ci </dt> 6702f4aeb0Sopenharmony_ci <dd> 6802f4aeb0Sopenharmony_ci <p> 6902f4aeb0Sopenharmony_ci Specifies the sync object to query. 7002f4aeb0Sopenharmony_ci </p> 7102f4aeb0Sopenharmony_ci </dd> 7202f4aeb0Sopenharmony_ci <dt> 7302f4aeb0Sopenharmony_ci <span class="term"> 7402f4aeb0Sopenharmony_ci <em class="parameter"> 7502f4aeb0Sopenharmony_ci <code>attribute</code> 7602f4aeb0Sopenharmony_ci </em> 7702f4aeb0Sopenharmony_ci </span> 7802f4aeb0Sopenharmony_ci </dt> 7902f4aeb0Sopenharmony_ci <dd> 8002f4aeb0Sopenharmony_ci <p> 8102f4aeb0Sopenharmony_ci Specifies the EGL sync object attribute to query. 8202f4aeb0Sopenharmony_ci </p> 8302f4aeb0Sopenharmony_ci </dd> 8402f4aeb0Sopenharmony_ci <dt> 8502f4aeb0Sopenharmony_ci <span class="term"> 8602f4aeb0Sopenharmony_ci <em class="parameter"> 8702f4aeb0Sopenharmony_ci <code>value</code> 8802f4aeb0Sopenharmony_ci </em> 8902f4aeb0Sopenharmony_ci </span> 9002f4aeb0Sopenharmony_ci </dt> 9102f4aeb0Sopenharmony_ci <dd> 9202f4aeb0Sopenharmony_ci <p> 9302f4aeb0Sopenharmony_ci Returns the requested attribute value. 9402f4aeb0Sopenharmony_ci </p> 9502f4aeb0Sopenharmony_ci </dd> 9602f4aeb0Sopenharmony_ci </dl> 9702f4aeb0Sopenharmony_ci </div> 9802f4aeb0Sopenharmony_ci </div> 9902f4aeb0Sopenharmony_ci <div class="refsect1" id="description"> 10002f4aeb0Sopenharmony_ci <h2>Description</h2> 10102f4aeb0Sopenharmony_ci <p> 10202f4aeb0Sopenharmony_ci <code class="function">eglGetSyncAttrib</code> is used to query 10302f4aeb0Sopenharmony_ci attributes of the sync object <em class="parameter"><code>sync</code></em>. Legal 10402f4aeb0Sopenharmony_ci values for <em class="parameter"><code>attribute</code></em> depend on the type 10502f4aeb0Sopenharmony_ci of sync object, as shown in table 10602f4aeb0Sopenharmony_ci <a class="xref" href="#tab-syncattr" title="Table 1. Attributes accepted by eglGetSyncAttrib">Table 1, “ 10702f4aeb0Sopenharmony_ci Attributes accepted by <code class="function">eglGetSyncAttrib</code> 10802f4aeb0Sopenharmony_ci ”</a>. Assuming no errors are 10902f4aeb0Sopenharmony_ci generated, <code class="constant">EGL_TRUE</code> is returned and the 11002f4aeb0Sopenharmony_ci value of the queried attribute is returned in 11102f4aeb0Sopenharmony_ci *<em class="parameter"><code>value</code></em>. 11202f4aeb0Sopenharmony_ci </p> 11302f4aeb0Sopenharmony_ci <div class="table" id="tab-syncattr"> 11402f4aeb0Sopenharmony_ci <div class="table-title">Table 1. 11502f4aeb0Sopenharmony_ci Attributes accepted by <code class="function">eglGetSyncAttrib</code> 11602f4aeb0Sopenharmony_ci </div> 11702f4aeb0Sopenharmony_ci <div class="table-contents"> 11802f4aeb0Sopenharmony_ci <table style="border-collapse: collapse; border-top: 2px solid ; border-bottom: 2px solid ; border-left: 2px solid ; border-right: 2px solid ; "> 11902f4aeb0Sopenharmony_ci <colgroup> 12002f4aeb0Sopenharmony_ci <col/> 12102f4aeb0Sopenharmony_ci <col/> 12202f4aeb0Sopenharmony_ci <col/> 12302f4aeb0Sopenharmony_ci </colgroup> 12402f4aeb0Sopenharmony_ci <thead> 12502f4aeb0Sopenharmony_ci <tr> 12602f4aeb0Sopenharmony_ci <th style="text-align: left; border-right: 2px solid ; border-bottom: 2px solid ; ">Attribute</th> 12702f4aeb0Sopenharmony_ci <th style="text-align: left; border-right: 2px solid ; border-bottom: 2px solid ; ">Description</th> 12802f4aeb0Sopenharmony_ci <th style="text-align: left; border-bottom: 2px solid ; ">Supported Sync Objects</th> 12902f4aeb0Sopenharmony_ci </tr> 13002f4aeb0Sopenharmony_ci </thead> 13102f4aeb0Sopenharmony_ci <tbody> 13202f4aeb0Sopenharmony_ci <tr> 13302f4aeb0Sopenharmony_ci <td style="text-align: left; border-right: 2px solid ; border-bottom: 2px solid ; ">Attribute</td> 13402f4aeb0Sopenharmony_ci <td style="text-align: left; border-right: 2px solid ; border-bottom: 2px solid ; ">Description</td> 13502f4aeb0Sopenharmony_ci <td style="text-align: left; border-bottom: 2px solid ; ">Supported Sync Objects</td> 13602f4aeb0Sopenharmony_ci </tr> 13702f4aeb0Sopenharmony_ci <tr> 13802f4aeb0Sopenharmony_ci <td style="text-align: left; border-right: 2px solid ; border-bottom: 2px solid ; "> 13902f4aeb0Sopenharmony_ci <code class="constant">EGL_SYNC_TYPE</code> 14002f4aeb0Sopenharmony_ci </td> 14102f4aeb0Sopenharmony_ci <td style="text-align: left; border-right: 2px solid ; border-bottom: 2px solid ; ">Type of the sync object</td> 14202f4aeb0Sopenharmony_ci <td style="text-align: left; border-bottom: 2px solid ; ">All</td> 14302f4aeb0Sopenharmony_ci </tr> 14402f4aeb0Sopenharmony_ci <tr> 14502f4aeb0Sopenharmony_ci <td style="text-align: left; border-right: 2px solid ; border-bottom: 2px solid ; "> 14602f4aeb0Sopenharmony_ci <code class="constant">EGL_SYNC_STATUS</code> 14702f4aeb0Sopenharmony_ci </td> 14802f4aeb0Sopenharmony_ci <td style="text-align: left; border-right: 2px solid ; border-bottom: 2px solid ; ">Status of the sync object</td> 14902f4aeb0Sopenharmony_ci <td style="text-align: left; border-bottom: 2px solid ; ">All</td> 15002f4aeb0Sopenharmony_ci </tr> 15102f4aeb0Sopenharmony_ci <tr> 15202f4aeb0Sopenharmony_ci <td style="text-align: left; border-right: 2px solid ; "> 15302f4aeb0Sopenharmony_ci <code class="constant">EGL_SYNC_CONDITION</code> 15402f4aeb0Sopenharmony_ci </td> 15502f4aeb0Sopenharmony_ci <td style="text-align: left; border-right: 2px solid ; ">Signaling condition</td> 15602f4aeb0Sopenharmony_ci <td style="text-align: left; "> 15702f4aeb0Sopenharmony_ci <code class="constant">EGL_SYNC_FENCE</code> or 15802f4aeb0Sopenharmony_ci <code class="constant">EGL_SYNC_CL_EVENT</code> 15902f4aeb0Sopenharmony_ci </td> 16002f4aeb0Sopenharmony_ci </tr> 16102f4aeb0Sopenharmony_ci </tbody> 16202f4aeb0Sopenharmony_ci </table> 16302f4aeb0Sopenharmony_ci </div> 16402f4aeb0Sopenharmony_ci </div> 16502f4aeb0Sopenharmony_ci <br class="table-break"/> 16602f4aeb0Sopenharmony_ci </div> 16702f4aeb0Sopenharmony_ci <div class="refsect1" id="errors"> 16802f4aeb0Sopenharmony_ci <h2>Errors</h2> 16902f4aeb0Sopenharmony_ci <p> 17002f4aeb0Sopenharmony_ci On failure, <code class="function">eglGetSyncAttrib</code> returns 17102f4aeb0Sopenharmony_ci <code class="constant">EGL_FALSE</code> and *<em class="parameter"><code>value</code></em> 17202f4aeb0Sopenharmony_ci is not modified. 17302f4aeb0Sopenharmony_ci </p> 17402f4aeb0Sopenharmony_ci <p> 17502f4aeb0Sopenharmony_ci If <em class="parameter"><code>sync</code></em> is not a valid sync object for 17602f4aeb0Sopenharmony_ci <em class="parameter"><code>display</code></em>, an 17702f4aeb0Sopenharmony_ci <code class="constant">EGL_BAD_PARAMETER</code> error is generated. 17802f4aeb0Sopenharmony_ci </p> 17902f4aeb0Sopenharmony_ci <p> 18002f4aeb0Sopenharmony_ci If <em class="parameter"><code>attribute</code></em> is not one of the attributes 18102f4aeb0Sopenharmony_ci in table <a class="xref" href="#tab-syncattr" title="Table 1. Attributes accepted by eglGetSyncAttrib">Table 1, “ 18202f4aeb0Sopenharmony_ci Attributes accepted by <code class="function">eglGetSyncAttrib</code> 18302f4aeb0Sopenharmony_ci ”</a>, an 18402f4aeb0Sopenharmony_ci <code class="constant">EGL_BAD_ATTRIBUTE</code> error is generated. 18502f4aeb0Sopenharmony_ci </p> 18602f4aeb0Sopenharmony_ci <p> 18702f4aeb0Sopenharmony_ci If <em class="parameter"><code>attribute</code></em> is not supported for the 18802f4aeb0Sopenharmony_ci type of sync object passed in <em class="parameter"><code>sync</code></em>, an 18902f4aeb0Sopenharmony_ci <code class="constant">EGL_BAD_MATCH</code> error is generated. 19002f4aeb0Sopenharmony_ci </p> 19102f4aeb0Sopenharmony_ci <p> 19202f4aeb0Sopenharmony_ci If <em class="parameter"><code>display</code></em> does not match the display 19302f4aeb0Sopenharmony_ci passed to <code class="function">eglCreateSync</code> when 19402f4aeb0Sopenharmony_ci <em class="parameter"><code>sync</code></em> was created, behaviour is undefined. 19502f4aeb0Sopenharmony_ci </p> 19602f4aeb0Sopenharmony_ci </div> 19702f4aeb0Sopenharmony_ci <div class="refsect1" id="notes"> 19802f4aeb0Sopenharmony_ci <h2>Notes</h2> 19902f4aeb0Sopenharmony_ci <p> 20002f4aeb0Sopenharmony_ci <code class="function">eglGetSyncAttrib</code> is available only if the 20102f4aeb0Sopenharmony_ci EGL version is 1.5 or greater. 20202f4aeb0Sopenharmony_ci </p> 20302f4aeb0Sopenharmony_ci </div> 20402f4aeb0Sopenharmony_ci <div class="refsect1" id="seealso"> 20502f4aeb0Sopenharmony_ci <h2>See Also</h2> 20602f4aeb0Sopenharmony_ci <p> 20702f4aeb0Sopenharmony_ci <a class="citerefentry" href="eglCreateSync.xhtml"><span class="citerefentry"><span class="refentrytitle">eglCreateSync</span></span></a> 20802f4aeb0Sopenharmony_ci </p> 20902f4aeb0Sopenharmony_ci </div> 21002f4aeb0Sopenharmony_ci <p> 21102f4aeb0Sopenharmony_ci </p> 21202f4aeb0Sopenharmony_ci <div class="refsect3" id="copyright"> 21302f4aeb0Sopenharmony_ci <img src="KhronosLogo.jpg"/> 21402f4aeb0Sopenharmony_ci <p> 21502f4aeb0Sopenharmony_ci Copyright © 2003-2014 The Khronos Group Inc. 21602f4aeb0Sopenharmony_ci Permission is hereby granted, free of charge, to any person obtaining a 21702f4aeb0Sopenharmony_ci copy of this software and/or associated documentation files (the 21802f4aeb0Sopenharmony_ci "Materials"), to deal in the Materials without restriction, including 21902f4aeb0Sopenharmony_ci without limitation the rights to use, copy, modify, merge, publish, 22002f4aeb0Sopenharmony_ci distribute, sublicense, and/or sell copies of the Materials, and to 22102f4aeb0Sopenharmony_ci permit persons to whom the Materials are furnished to do so, subject to 22202f4aeb0Sopenharmony_ci the condition that this copyright notice and permission notice shall be included 22302f4aeb0Sopenharmony_ci in all copies or substantial portions of the Materials. 22402f4aeb0Sopenharmony_ci </p> 22502f4aeb0Sopenharmony_ci </div> 22602f4aeb0Sopenharmony_ci <p> 22702f4aeb0Sopenharmony_ci</p> 22802f4aeb0Sopenharmony_ci </div> 22902f4aeb0Sopenharmony_ci <footer/> 23002f4aeb0Sopenharmony_ci </body> 23102f4aeb0Sopenharmony_ci</html> 232
