102f4aeb0Sopenharmony_ci<?xml version="1.0" encoding="UTF-8"?> 202f4aeb0Sopenharmony_ci<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "xhtml1-transitional.dtd"> 302f4aeb0Sopenharmony_ci<!-- saved from url=(0013)about:internet --> 402f4aeb0Sopenharmony_ci<?xml-stylesheet type="text/xsl" href="mathml.xsl"?><html xmlns="http://www.w3.org/1999/xhtml" xmlns:pref="http://www.w3.org/2002/Math/preference" xmlns:xlink="http://www.w3.org/1999/xlink" pref:renderer="mathplayer-dl"> 502f4aeb0Sopenharmony_ci <head> 602f4aeb0Sopenharmony_ci <meta http-equiv="Content-Type" content="text/html; charset=UTF-8" /> 702f4aeb0Sopenharmony_ci <style xmlns="" type="text/css"> 802f4aeb0Sopenharmony_ci /* This style sets a margin around the entire page */ 902f4aeb0Sopenharmony_ci html, body { 1002f4aeb0Sopenharmony_ci margin: 10px; 1102f4aeb0Sopenharmony_ci } 1202f4aeb0Sopenharmony_ci 1302f4aeb0Sopenharmony_ci p { 1402f4aeb0Sopenharmony_ci font: normal 16px verdana, sans-serif; 1502f4aeb0Sopenharmony_ci margin: 0; 1602f4aeb0Sopenharmony_ci padding-bottom:12px; 1702f4aeb0Sopenharmony_ci } 1802f4aeb0Sopenharmony_ci 1902f4aeb0Sopenharmony_ci h1 { 2002f4aeb0Sopenharmony_ci font: bold 25px verdana, sans-serif; 2102f4aeb0Sopenharmony_ci margin-top: 0; 2202f4aeb0Sopenharmony_ci margin-bottom: 3px; 2302f4aeb0Sopenharmony_ci padding-top: 0; 2402f4aeb0Sopenharmony_ci padding-bottom: 0; 2502f4aeb0Sopenharmony_ci } 2602f4aeb0Sopenharmony_ci 2702f4aeb0Sopenharmony_ci h2 { 2802f4aeb0Sopenharmony_ci font: bold 19px verdana, sans-serif; 2902f4aeb0Sopenharmony_ci margin-top: 28px; 3002f4aeb0Sopenharmony_ci margin-bottom: 3px; 3102f4aeb0Sopenharmony_ci padding-top: 0; 3202f4aeb0Sopenharmony_ci padding-bottom: 0; 3302f4aeb0Sopenharmony_ci } 3402f4aeb0Sopenharmony_ci 3502f4aeb0Sopenharmony_ci h3 { 3602f4aeb0Sopenharmony_ci font: bold 19px verdana, sans-serif !important; 3702f4aeb0Sopenharmony_ci margin-top: 28px; 3802f4aeb0Sopenharmony_ci margin-bottom: 3px; 3902f4aeb0Sopenharmony_ci padding-top: 0; 4002f4aeb0Sopenharmony_ci padding-bottom: 0; 4102f4aeb0Sopenharmony_ci } 4202f4aeb0Sopenharmony_ci 4302f4aeb0Sopenharmony_ci li { 4402f4aeb0Sopenharmony_ci font: normal 16px verdana, sans-serif; 4502f4aeb0Sopenharmony_ci margin-top: 0; 4602f4aeb0Sopenharmony_ci margin-bottom: 18px; 4702f4aeb0Sopenharmony_ci padding-top: 0; 4802f4aeb0Sopenharmony_ci padding-bottom: 0; 4902f4aeb0Sopenharmony_ci } 5002f4aeb0Sopenharmony_ci 5102f4aeb0Sopenharmony_ci .pdparam { 5202f4aeb0Sopenharmony_ci font: italic 16px verdana, sans-serif; 5302f4aeb0Sopenharmony_ci } 5402f4aeb0Sopenharmony_ci 5502f4aeb0Sopenharmony_ci .term { 5602f4aeb0Sopenharmony_ci font: italic 16px verdana, sans-serif; 5702f4aeb0Sopenharmony_ci font-weight: normal; 5802f4aeb0Sopenharmony_ci } 5902f4aeb0Sopenharmony_ci 6002f4aeb0Sopenharmony_ci .type { 6102f4aeb0Sopenharmony_ci font: normal 16px verdana, sans-serif !important; 6202f4aeb0Sopenharmony_ci } 6302f4aeb0Sopenharmony_ci 6402f4aeb0Sopenharmony_ci .parameter { 6502f4aeb0Sopenharmony_ci font-style: italic; 6602f4aeb0Sopenharmony_ci } 6702f4aeb0Sopenharmony_ci 6802f4aeb0Sopenharmony_ci a:link, a:visited { 6902f4aeb0Sopenharmony_ci color: blue; 7002f4aeb0Sopenharmony_ci text-decoration: none; 7102f4aeb0Sopenharmony_ci font: normal 16px; 7202f4aeb0Sopenharmony_ci } 7302f4aeb0Sopenharmony_ci 7402f4aeb0Sopenharmony_ci a:hover { 7502f4aeb0Sopenharmony_ci background-color: #FFFF99; 7602f4aeb0Sopenharmony_ci font: normal 16px; 7702f4aeb0Sopenharmony_ci } 7802f4aeb0Sopenharmony_ci 7902f4aeb0Sopenharmony_ci div.funcsynopsis { 8002f4aeb0Sopenharmony_ci text-align: left; 8102f4aeb0Sopenharmony_ci background-color: #e6e6e6; 8202f4aeb0Sopenharmony_ci font: normal 16px verdana, sans-serif; 8302f4aeb0Sopenharmony_ci padding-top: 10px; 8402f4aeb0Sopenharmony_ci padding-bottom: 10px; 8502f4aeb0Sopenharmony_ci } 8602f4aeb0Sopenharmony_ci 8702f4aeb0Sopenharmony_ci div.funcsynopsis table { 8802f4aeb0Sopenharmony_ci border-collapse: separate; 8902f4aeb0Sopenharmony_ci font: normal 16px verdana, sans-serif; 9002f4aeb0Sopenharmony_ci } 9102f4aeb0Sopenharmony_ci 9202f4aeb0Sopenharmony_ci div.funcsynopsis td { 9302f4aeb0Sopenharmony_ci background-color: #e6e6e6; 9402f4aeb0Sopenharmony_ci border: 0 solid #000; 9502f4aeb0Sopenharmony_ci padding: 1px; 9602f4aeb0Sopenharmony_ci font: normal 16px verdana, sans-serif; 9702f4aeb0Sopenharmony_ci } 9802f4aeb0Sopenharmony_ci 9902f4aeb0Sopenharmony_ci div.refsect1 { 10002f4aeb0Sopenharmony_ci font-family: verdana, sans-serif; 10102f4aeb0Sopenharmony_ci font-size: 16px; 10202f4aeb0Sopenharmony_ci } 10302f4aeb0Sopenharmony_ci 10402f4aeb0Sopenharmony_ci code.constant { 10502f4aeb0Sopenharmony_ci font: normal 16px courier new, monospace !important; 10602f4aeb0Sopenharmony_ci } 10702f4aeb0Sopenharmony_ci 10802f4aeb0Sopenharmony_ci span.errorname { 10902f4aeb0Sopenharmony_ci font: normal 16px verdana, sans-serif !important; 11002f4aeb0Sopenharmony_ci } 11102f4aeb0Sopenharmony_ci 11202f4aeb0Sopenharmony_ci code.function { 11302f4aeb0Sopenharmony_ci font: bold 16px verdana, sans-serif !important; 11402f4aeb0Sopenharmony_ci } 11502f4aeb0Sopenharmony_ci 11602f4aeb0Sopenharmony_ci b.fsfunc { 11702f4aeb0Sopenharmony_ci font: bold 16px verdana, sans-serif !important; 11802f4aeb0Sopenharmony_ci } 11902f4aeb0Sopenharmony_ci 12002f4aeb0Sopenharmony_ci code.varname { 12102f4aeb0Sopenharmony_ci font: italic 16px verdana, sans-serif; 12202f4aeb0Sopenharmony_ci } 12302f4aeb0Sopenharmony_ci 12402f4aeb0Sopenharmony_ci code.replaceable { 12502f4aeb0Sopenharmony_ci font: italic 16px courier new, monospace; 12602f4aeb0Sopenharmony_ci } 12702f4aeb0Sopenharmony_ci 12802f4aeb0Sopenharmony_ci code.funcdef { 12902f4aeb0Sopenharmony_ci font: normal 16px verdana, sans-serif !important; 13002f4aeb0Sopenharmony_ci } 13102f4aeb0Sopenharmony_ci 13202f4aeb0Sopenharmony_ci .citerefentry { 13302f4aeb0Sopenharmony_ci font: normal 16px verdana, sans-serif !important; 13402f4aeb0Sopenharmony_ci } 13502f4aeb0Sopenharmony_ci 13602f4aeb0Sopenharmony_ci .parameter { 13702f4aeb0Sopenharmony_ci font-style: italic; 13802f4aeb0Sopenharmony_ci } 13902f4aeb0Sopenharmony_ci 14002f4aeb0Sopenharmony_ci code.fsfunc { 14102f4aeb0Sopenharmony_ci font: normal 16px verdana, sans-serif !important; 14202f4aeb0Sopenharmony_ci } 14302f4aeb0Sopenharmony_ci 14402f4aeb0Sopenharmony_ci /* PARAMETER: This style controls spacing between the terms in Parameter section */ 14502f4aeb0Sopenharmony_ci dt { 14602f4aeb0Sopenharmony_ci margin-top: 15px; 14702f4aeb0Sopenharmony_ci } 14802f4aeb0Sopenharmony_ci 14902f4aeb0Sopenharmony_ci /* TABLES: These styles apply to all tables OTHER than the Synopsis and Example tables */ 15002f4aeb0Sopenharmony_ci div.refsect1 table { 15102f4aeb0Sopenharmony_ci width: 100%; 15202f4aeb0Sopenharmony_ci margin-top: 10px; 15302f4aeb0Sopenharmony_ci background-color: #FFF; 15402f4aeb0Sopenharmony_ci border-collapse: collapse; 15502f4aeb0Sopenharmony_ci border-color: #000; 15602f4aeb0Sopenharmony_ci border-width: 1px; 15702f4aeb0Sopenharmony_ci font: normal 16px verdana, sans-serif; 15802f4aeb0Sopenharmony_ci } 15902f4aeb0Sopenharmony_ci 16002f4aeb0Sopenharmony_ci div.refsect1 th { 16102f4aeb0Sopenharmony_ci border-collapse: collapse; 16202f4aeb0Sopenharmony_ci border-color: #000; 16302f4aeb0Sopenharmony_ci border-width: 1px; 16402f4aeb0Sopenharmony_ci font: bold 16px verdana, sans-serif; 16502f4aeb0Sopenharmony_ci } 16602f4aeb0Sopenharmony_ci 16702f4aeb0Sopenharmony_ci div.refsect1 td { 16802f4aeb0Sopenharmony_ci background-color: #FFF; 16902f4aeb0Sopenharmony_ci padding: 5px; 17002f4aeb0Sopenharmony_ci vertical-align: text-top; 17102f4aeb0Sopenharmony_ci border-collapse: collapse; 17202f4aeb0Sopenharmony_ci border-color: #000; 17302f4aeb0Sopenharmony_ci border-width: 1px; 17402f4aeb0Sopenharmony_ci font: normal 16px verdana, sans-serif; 17502f4aeb0Sopenharmony_ci } 17602f4aeb0Sopenharmony_ci 17702f4aeb0Sopenharmony_ci div.refsect1 p{ 17802f4aeb0Sopenharmony_ci font: normal 16px verdana, sans-serif; 17902f4aeb0Sopenharmony_ci margin-top: 8px; 18002f4aeb0Sopenharmony_ci margin-bottom: 8px; 18102f4aeb0Sopenharmony_ci padding-top: 0; 18202f4aeb0Sopenharmony_ci padding-bottom: 0; 18302f4aeb0Sopenharmony_ci } 18402f4aeb0Sopenharmony_ci 18502f4aeb0Sopenharmony_ci 18602f4aeb0Sopenharmony_ci /* EXAMPLE: These styles apply only to the Example section */ 18702f4aeb0Sopenharmony_ci div.refsect2 { 18802f4aeb0Sopenharmony_ci font: normal 16px courier new, monospace !important; 18902f4aeb0Sopenharmony_ci } 19002f4aeb0Sopenharmony_ci 19102f4aeb0Sopenharmony_ci div.refsect2 table { 19202f4aeb0Sopenharmony_ci margin-top: 0; 19302f4aeb0Sopenharmony_ci background-color: #e6e6e6; 19402f4aeb0Sopenharmony_ci width: 100%; 19502f4aeb0Sopenharmony_ci border: 0 solid #000; 19602f4aeb0Sopenharmony_ci padding: 2px; 19702f4aeb0Sopenharmony_ci font: normal 16px courier new, monospace !important; 19802f4aeb0Sopenharmony_ci } 19902f4aeb0Sopenharmony_ci 20002f4aeb0Sopenharmony_ci div.refsect2 td { 20102f4aeb0Sopenharmony_ci background-color: #e6e6e6; 20202f4aeb0Sopenharmony_ci font: normal 16px courier new, monospace !important; 20302f4aeb0Sopenharmony_ci white-space:pre; 20402f4aeb0Sopenharmony_ci } 20502f4aeb0Sopenharmony_ci 20602f4aeb0Sopenharmony_ci /* COPYRIGHT: This style formats the text of the copyright statement at the bottom of the page */ 20702f4aeb0Sopenharmony_ci div.refsect3 { 20802f4aeb0Sopenharmony_ci font: normal 11px verdana, sans-serif; 20902f4aeb0Sopenharmony_ci margin-top: 50px; 21002f4aeb0Sopenharmony_ci margin-bottom: 20px; 21102f4aeb0Sopenharmony_ci padding-top: 0; 21202f4aeb0Sopenharmony_ci padding-bottom: 0; 21302f4aeb0Sopenharmony_ci } 21402f4aeb0Sopenharmony_ci 21502f4aeb0Sopenharmony_ci</style> 21602f4aeb0Sopenharmony_ci <title>eglCreateContext</title> 21702f4aeb0Sopenharmony_ci <meta name="generator" content="DocBook XSL Stylesheets V1.78.1" /> 21802f4aeb0Sopenharmony_ci </head> 21902f4aeb0Sopenharmony_ci <body> 22002f4aeb0Sopenharmony_ci <div class="refentry"> 22102f4aeb0Sopenharmony_ci <a id="eglCreateContext"></a> 22202f4aeb0Sopenharmony_ci <div class="titlepage"></div> 22302f4aeb0Sopenharmony_ci <div xmlns="" class="refnamediv"> 22402f4aeb0Sopenharmony_ci <h1>eglCreateContext</h1> 22502f4aeb0Sopenharmony_ci <p> 22602f4aeb0Sopenharmony_ci create a new <acronym xmlns="http://www.w3.org/1999/xhtml" class="acronym">EGL</acronym> rendering context 22702f4aeb0Sopenharmony_ci </p> 22802f4aeb0Sopenharmony_ci </div> 22902f4aeb0Sopenharmony_ci <div class="refsynopsisdiv"> 23002f4aeb0Sopenharmony_ci <h2>C Specification</h2> 23102f4aeb0Sopenharmony_ci <div class="funcsynopsis"> 23202f4aeb0Sopenharmony_ci <table xmlns="" border="0" summary="Function synopsis" cellspacing="0" cellpadding="0"> 23302f4aeb0Sopenharmony_ci <tr valign="bottom"> 23402f4aeb0Sopenharmony_ci <td> 23502f4aeb0Sopenharmony_ci <code xmlns="http://www.w3.org/1999/xhtml" class="funcdef">EGLContext <strong class="fsfunc">eglCreateContext</strong>(</code> 23602f4aeb0Sopenharmony_ci <td>EGLDisplay <var xmlns="http://www.w3.org/1999/xhtml" class="pdparam">display</var>, </td> 23702f4aeb0Sopenharmony_ci </td> 23802f4aeb0Sopenharmony_ci </tr> 23902f4aeb0Sopenharmony_ci <tr valign="top"> 24002f4aeb0Sopenharmony_ci <td> </td> 24102f4aeb0Sopenharmony_ci <td>EGLConfig <var xmlns="http://www.w3.org/1999/xhtml" class="pdparam">config</var>, </td> 24202f4aeb0Sopenharmony_ci </tr> 24302f4aeb0Sopenharmony_ci <tr valign="top"> 24402f4aeb0Sopenharmony_ci <td> </td> 24502f4aeb0Sopenharmony_ci <td>EGLContext <var xmlns="http://www.w3.org/1999/xhtml" class="pdparam">share_context</var>, </td> 24602f4aeb0Sopenharmony_ci </tr> 24702f4aeb0Sopenharmony_ci <tr valign="top"> 24802f4aeb0Sopenharmony_ci <td> </td> 24902f4aeb0Sopenharmony_ci <td>EGLint const * <var xmlns="http://www.w3.org/1999/xhtml" class="pdparam">attrib_list</var><code>)</code></td> 25002f4aeb0Sopenharmony_ci </tr> 25102f4aeb0Sopenharmony_ci </table> 25202f4aeb0Sopenharmony_ci </div> 25302f4aeb0Sopenharmony_ci </div> 25402f4aeb0Sopenharmony_ci <div class="refsect1"> 25502f4aeb0Sopenharmony_ci <a id="parameters"></a> 25602f4aeb0Sopenharmony_ci <h2>Parameters</h2> 25702f4aeb0Sopenharmony_ci <div class="variablelist"> 25802f4aeb0Sopenharmony_ci <dl class="variablelist"> 25902f4aeb0Sopenharmony_ci <dt> 26002f4aeb0Sopenharmony_ci <span class="term"> 26102f4aeb0Sopenharmony_ci <em class="parameter"> 26202f4aeb0Sopenharmony_ci <code>display</code> 26302f4aeb0Sopenharmony_ci </em> 26402f4aeb0Sopenharmony_ci </span> 26502f4aeb0Sopenharmony_ci </dt> 26602f4aeb0Sopenharmony_ci <dd> 26702f4aeb0Sopenharmony_ci <p> 26802f4aeb0Sopenharmony_ci Specifies the 26902f4aeb0Sopenharmony_ci <acronym class="acronym">EGL</acronym> 27002f4aeb0Sopenharmony_ci display connection. 27102f4aeb0Sopenharmony_ci </p> 27202f4aeb0Sopenharmony_ci </dd> 27302f4aeb0Sopenharmony_ci <dt> 27402f4aeb0Sopenharmony_ci <span class="term"> 27502f4aeb0Sopenharmony_ci <em class="parameter"> 27602f4aeb0Sopenharmony_ci <code>config</code> 27702f4aeb0Sopenharmony_ci </em> 27802f4aeb0Sopenharmony_ci </span> 27902f4aeb0Sopenharmony_ci </dt> 28002f4aeb0Sopenharmony_ci <dd> 28102f4aeb0Sopenharmony_ci <p>Specifies the EGL frame buffer configuration that 28202f4aeb0Sopenharmony_ci defines the frame buffer resource available to the rendering context. 28302f4aeb0Sopenharmony_ci </p> 28402f4aeb0Sopenharmony_ci </dd> 28502f4aeb0Sopenharmony_ci <dt> 28602f4aeb0Sopenharmony_ci <span class="term"> 28702f4aeb0Sopenharmony_ci <em class="parameter"> 28802f4aeb0Sopenharmony_ci <code>share_context</code> 28902f4aeb0Sopenharmony_ci </em> 29002f4aeb0Sopenharmony_ci </span> 29102f4aeb0Sopenharmony_ci </dt> 29202f4aeb0Sopenharmony_ci <dd> 29302f4aeb0Sopenharmony_ci <p> 29402f4aeb0Sopenharmony_ci Specifies another 29502f4aeb0Sopenharmony_ci <acronym class="acronym">EGL</acronym> 29602f4aeb0Sopenharmony_ci rendering context with which to share data, as 29702f4aeb0Sopenharmony_ci defined by the client API corresponding to the 29802f4aeb0Sopenharmony_ci contexts. Data is also shared with all other 29902f4aeb0Sopenharmony_ci contexts with which 30002f4aeb0Sopenharmony_ci <em class="parameter"><code>share_context</code></em> shares data. 30102f4aeb0Sopenharmony_ci <code class="constant">EGL_NO_CONTEXT</code> indicates that 30202f4aeb0Sopenharmony_ci no sharing is to take place. 30302f4aeb0Sopenharmony_ci </p> 30402f4aeb0Sopenharmony_ci </dd> 30502f4aeb0Sopenharmony_ci <dt> 30602f4aeb0Sopenharmony_ci <span class="term"> 30702f4aeb0Sopenharmony_ci <em class="parameter"> 30802f4aeb0Sopenharmony_ci <code>attrib_list</code> 30902f4aeb0Sopenharmony_ci </em> 31002f4aeb0Sopenharmony_ci </span> 31102f4aeb0Sopenharmony_ci </dt> 31202f4aeb0Sopenharmony_ci <dd> 31302f4aeb0Sopenharmony_ci <p> 31402f4aeb0Sopenharmony_ci Specifies attributes and attribute values for the 31502f4aeb0Sopenharmony_ci context being created. Only the attribute 31602f4aeb0Sopenharmony_ci <code class="constant">EGL_CONTEXT_CLIENT_VERSION</code> may 31702f4aeb0Sopenharmony_ci be specified. 31802f4aeb0Sopenharmony_ci </p> 31902f4aeb0Sopenharmony_ci </dd> 32002f4aeb0Sopenharmony_ci </dl> 32102f4aeb0Sopenharmony_ci </div> 32202f4aeb0Sopenharmony_ci </div> 32302f4aeb0Sopenharmony_ci <div class="refsect1"> 32402f4aeb0Sopenharmony_ci <a id="description"></a> 32502f4aeb0Sopenharmony_ci <h2>Description</h2> 32602f4aeb0Sopenharmony_ci <p> 32702f4aeb0Sopenharmony_ci <code class="function">eglCreateContext</code> creates an EGL 32802f4aeb0Sopenharmony_ci rendering context for the current rendering API (as set with 32902f4aeb0Sopenharmony_ci <code class="function">eglBindAPI</code>) and returns a handle to the 33002f4aeb0Sopenharmony_ci context. The context can then be used to render into an EGL 33102f4aeb0Sopenharmony_ci drawing surface. If <code class="function">eglCreateContext</code> 33202f4aeb0Sopenharmony_ci fails to create a rendering context, 33302f4aeb0Sopenharmony_ci <code class="constant">EGL_NO_CONTEXT</code> is returned. 33402f4aeb0Sopenharmony_ci </p> 33502f4aeb0Sopenharmony_ci <p> 33602f4aeb0Sopenharmony_ci If <em class="parameter"><code>share_context</code></em> is not 33702f4aeb0Sopenharmony_ci <code class="constant">EGL_NO_CONTEXT</code>, then all shareable data 33802f4aeb0Sopenharmony_ci in the context (as defined by the client API specification 33902f4aeb0Sopenharmony_ci for the current rendering API) are shared by context 34002f4aeb0Sopenharmony_ci <em class="parameter"><code>share_context</code></em>, all other contexts 34102f4aeb0Sopenharmony_ci <em class="parameter"><code>share_context</code></em> already shares with, 34202f4aeb0Sopenharmony_ci and the newly created context. An arbitrary number of 34302f4aeb0Sopenharmony_ci rendering contexts can share data. However, all rendering 34402f4aeb0Sopenharmony_ci contexts that share data must themselves exist in the same 34502f4aeb0Sopenharmony_ci address space. Two rendering contexts share an address space 34602f4aeb0Sopenharmony_ci if both are owned by a single process. 34702f4aeb0Sopenharmony_ci </p> 34802f4aeb0Sopenharmony_ci <p> 34902f4aeb0Sopenharmony_ci <em class="parameter"><code>attrib_list</code></em> specifies a list of 35002f4aeb0Sopenharmony_ci attributes for the context. The list has the same structure 35102f4aeb0Sopenharmony_ci as described for <code class="function">eglChooseConfig</code>. The 35202f4aeb0Sopenharmony_ci attributes and attribute values which may be specified are 35302f4aeb0Sopenharmony_ci as follows: 35402f4aeb0Sopenharmony_ci </p> 35502f4aeb0Sopenharmony_ci <div class="variablelist"> 35602f4aeb0Sopenharmony_ci <dl class="variablelist"> 35702f4aeb0Sopenharmony_ci <dt> 35802f4aeb0Sopenharmony_ci <span class="term"> 35902f4aeb0Sopenharmony_ci <code class="constant">EGL_CONTEXT_CLIENT_VERSION</code> 36002f4aeb0Sopenharmony_ci </span> 36102f4aeb0Sopenharmony_ci </dt> 36202f4aeb0Sopenharmony_ci <dd> 36302f4aeb0Sopenharmony_ci <p> 36402f4aeb0Sopenharmony_ci Must be followed by an integer that determines which 36502f4aeb0Sopenharmony_ci version of an OpenGL ES context to create. A value 36602f4aeb0Sopenharmony_ci of 1 specifies creation of an OpenGL ES 1.x context. 36702f4aeb0Sopenharmony_ci An attribute value of 2 specifies creation of an 36802f4aeb0Sopenharmony_ci OpenGL ES 2.x context. The default value is 1. This 36902f4aeb0Sopenharmony_ci attribute can only be specified when creating a 37002f4aeb0Sopenharmony_ci OpenGL ES context (e.g. when the current rendering 37102f4aeb0Sopenharmony_ci API is <code class="constant">EGL_OPENGL_ES_API</code>). 37202f4aeb0Sopenharmony_ci </p> 37302f4aeb0Sopenharmony_ci </dd> 37402f4aeb0Sopenharmony_ci </dl> 37502f4aeb0Sopenharmony_ci </div> 37602f4aeb0Sopenharmony_ci </div> 37702f4aeb0Sopenharmony_ci <div class="refsect1"> 37802f4aeb0Sopenharmony_ci <a id="notes"></a> 37902f4aeb0Sopenharmony_ci <h2>Notes</h2> 38002f4aeb0Sopenharmony_ci <p> 38102f4aeb0Sopenharmony_ci The current rendering API is only respected if the EGL 38202f4aeb0Sopenharmony_ci version is 1.2 or greater. Otherwise, an OpenGL ES context 38302f4aeb0Sopenharmony_ci will always be created. 38402f4aeb0Sopenharmony_ci </p> 38502f4aeb0Sopenharmony_ci <p> 38602f4aeb0Sopenharmony_ci The <code class="constant">EGL_CONTEXT_CLIENT_VERSION</code> 38702f4aeb0Sopenharmony_ci attribute is only supported if the EGL version is 1.3 or 38802f4aeb0Sopenharmony_ci greater. 38902f4aeb0Sopenharmony_ci </p> 39002f4aeb0Sopenharmony_ci <p> 39102f4aeb0Sopenharmony_ci A <em class="firstterm">process</em> is a single execution environment, 39202f4aeb0Sopenharmony_ci implemented in a single address space, consisting of one or more threads. 39302f4aeb0Sopenharmony_ci </p> 39402f4aeb0Sopenharmony_ci <p> 39502f4aeb0Sopenharmony_ci A <em class="firstterm">thread</em> is one of a set of subprocesses that 39602f4aeb0Sopenharmony_ci share a single address space, but maintain separate program counters, 39702f4aeb0Sopenharmony_ci stack spaces, and other related global data. 39802f4aeb0Sopenharmony_ci A thread is the only member of its subprocess group is equivalent to a 39902f4aeb0Sopenharmony_ci process. 40002f4aeb0Sopenharmony_ci </p> 40102f4aeb0Sopenharmony_ci </div> 40202f4aeb0Sopenharmony_ci <div class="refsect1"> 40302f4aeb0Sopenharmony_ci <a id="errors"></a> 40402f4aeb0Sopenharmony_ci <h2>Errors</h2> 40502f4aeb0Sopenharmony_ci <p> 40602f4aeb0Sopenharmony_ci <code class="constant">EGL_NO_CONTEXT</code> is returned if creation of 40702f4aeb0Sopenharmony_ci the context fails. 40802f4aeb0Sopenharmony_ci </p> 40902f4aeb0Sopenharmony_ci <p> 41002f4aeb0Sopenharmony_ci <code class="constant">EGL_BAD_MATCH</code> is generated if the 41102f4aeb0Sopenharmony_ci current rendering API is <code class="constant">EGL_NONE</code> (this 41202f4aeb0Sopenharmony_ci can only arise in an EGL implementation which does not 41302f4aeb0Sopenharmony_ci support OpenGL ES, prior to the first call to 41402f4aeb0Sopenharmony_ci <code class="function">eglBindAPI</code>). 41502f4aeb0Sopenharmony_ci </p> 41602f4aeb0Sopenharmony_ci <p> 41702f4aeb0Sopenharmony_ci <code class="constant">EGL_BAD_MATCH</code> is generated if the 41802f4aeb0Sopenharmony_ci server context state for 41902f4aeb0Sopenharmony_ci <em class="parameter"><code>share_context</code></em> exists in an address 42002f4aeb0Sopenharmony_ci space which cannot be shared with the newly created context, 42102f4aeb0Sopenharmony_ci if <em class="parameter"><code>share_context</code></em> was created on a 42202f4aeb0Sopenharmony_ci different display than the one referenced by 42302f4aeb0Sopenharmony_ci <em class="parameter"><code>config</code></em>, or if the contexts are 42402f4aeb0Sopenharmony_ci otherwise incompatible. 42502f4aeb0Sopenharmony_ci </p> 42602f4aeb0Sopenharmony_ci <p> 42702f4aeb0Sopenharmony_ci <code class="constant">EGL_BAD_DISPLAY</code> is generated if 42802f4aeb0Sopenharmony_ci <em class="parameter"><code>display</code></em> is not an EGL display connection. 42902f4aeb0Sopenharmony_ci </p> 43002f4aeb0Sopenharmony_ci <p> 43102f4aeb0Sopenharmony_ci <code class="constant">EGL_NOT_INITIALIZED</code> is generated if 43202f4aeb0Sopenharmony_ci <em class="parameter"><code>display</code></em> has not been initialized. 43302f4aeb0Sopenharmony_ci </p> 43402f4aeb0Sopenharmony_ci <p> 43502f4aeb0Sopenharmony_ci <code class="constant">EGL_BAD_CONFIG</code> is generated if 43602f4aeb0Sopenharmony_ci <em class="parameter"><code>config</code></em> is not an EGL frame buffer 43702f4aeb0Sopenharmony_ci configuration, or does not support the current rendering 43802f4aeb0Sopenharmony_ci API. This includes requesting creation of an OpenGL ES 1.x 43902f4aeb0Sopenharmony_ci context when the <code class="constant">EGL_RENDERABLE_TYPE</code> 44002f4aeb0Sopenharmony_ci attribute of <em class="parameter"><code>config</code></em> does not contain 44102f4aeb0Sopenharmony_ci <code class="constant">EGL_OPENGL_ES_BIT</code>, or creation of an 44202f4aeb0Sopenharmony_ci OpenGL ES 2.x context when the attribute does not contain 44302f4aeb0Sopenharmony_ci <code class="constant">EGL_OPENGL_ES2_BIT</code>. 44402f4aeb0Sopenharmony_ci </p> 44502f4aeb0Sopenharmony_ci <p> 44602f4aeb0Sopenharmony_ci <code class="constant">EGL_BAD_CONTEXT</code> is generated if 44702f4aeb0Sopenharmony_ci <em class="parameter"><code>share_context</code></em> is not an EGL rendering 44802f4aeb0Sopenharmony_ci context of the same client API type as the newly created 44902f4aeb0Sopenharmony_ci context and is not <code class="constant">EGL_NO_CONTEXT</code>. 45002f4aeb0Sopenharmony_ci </p> 45102f4aeb0Sopenharmony_ci <p> 45202f4aeb0Sopenharmony_ci <code class="constant">EGL_BAD_ATTRIBUTE</code> is generated if 45302f4aeb0Sopenharmony_ci <em class="parameter"><code>attrib_list</code></em> contains an invalid 45402f4aeb0Sopenharmony_ci context attribute or if an attribute is not recognized or 45502f4aeb0Sopenharmony_ci out of range. Note that attribute 45602f4aeb0Sopenharmony_ci <code class="constant">EGL_CONTEXT_CLIENT_VERSION</code> is 45702f4aeb0Sopenharmony_ci only valid when the current rendering API is 45802f4aeb0Sopenharmony_ci <code class="constant">EGL_OPENGL_ES_API</code>. 45902f4aeb0Sopenharmony_ci </p> 46002f4aeb0Sopenharmony_ci <p> 46102f4aeb0Sopenharmony_ci <code class="constant">EGL_BAD_ALLOC</code> is generated if there are not 46202f4aeb0Sopenharmony_ci enough resources to allocate the new context. 46302f4aeb0Sopenharmony_ci </p> 46402f4aeb0Sopenharmony_ci </div> 46502f4aeb0Sopenharmony_ci <div class="refsect1"> 46602f4aeb0Sopenharmony_ci <a id="seealso"></a> 46702f4aeb0Sopenharmony_ci <h2>See Also</h2> 46802f4aeb0Sopenharmony_ci <p> 46902f4aeb0Sopenharmony_ci <a class="citerefentry" href="eglDestroyContext.html"><span class="citerefentry"><span class="refentrytitle">eglDestroyContext</span></span></a>, 47002f4aeb0Sopenharmony_ci <a class="citerefentry" href="eglChooseConfig.html"><span class="citerefentry"><span class="refentrytitle">eglChooseConfig</span></span></a>, 47102f4aeb0Sopenharmony_ci <a class="citerefentry" href="eglGetConfigs.html"><span class="citerefentry"><span class="refentrytitle">eglGetConfigs</span></span></a>, 47202f4aeb0Sopenharmony_ci <a class="citerefentry" href="eglMakeCurrent.html"><span class="citerefentry"><span class="refentrytitle">eglMakeCurrent</span></span></a> 47302f4aeb0Sopenharmony_ci </p> 47402f4aeb0Sopenharmony_ci </div> 47502f4aeb0Sopenharmony_ci <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> 47602f4aeb0Sopenharmony_ciCopyright © 2003-2014 The Khronos Group Inc. 47702f4aeb0Sopenharmony_ciPermission is hereby granted, free of charge, to any person obtaining a 47802f4aeb0Sopenharmony_cicopy of this software and/or associated documentation files (the 47902f4aeb0Sopenharmony_ci"Materials"), to deal in the Materials without restriction, including 48002f4aeb0Sopenharmony_ciwithout limitation the rights to use, copy, modify, merge, publish, 48102f4aeb0Sopenharmony_cidistribute, sublicense, and/or sell copies of the Materials, and to 48202f4aeb0Sopenharmony_cipermit persons to whom the Materials are furnished to do so, subject to 48302f4aeb0Sopenharmony_cithe condition that this copyright notice and permission notice shall be included 48402f4aeb0Sopenharmony_ciin all copies or substantial portions of the Materials. 48502f4aeb0Sopenharmony_ci</div> 48602f4aeb0Sopenharmony_ci </div> 48702f4aeb0Sopenharmony_ci </body> 48802f4aeb0Sopenharmony_ci</html> 489
