mirror of
https://github.com/curioustorvald/Terrarum.git
synced 2026-06-12 19:44:05 +09:00
8e6fc55f46
Former-commit-id: c9c053368cf5b7bbaf7aa2aa1a986611c3dad698 Former-commit-id: a9835ae3c2b484bcb5b1ee6fa57504c406c61490
351 lines
14 KiB
HTML
351 lines
14 KiB
HTML
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
|
|
<!--NewPage-->
|
|
<HTML>
|
|
<HEAD>
|
|
<!-- Generated by javadoc (build 1.6.0_26) on Tue Jul 28 10:50:13 BST 2015 -->
|
|
<TITLE>
|
|
GLContext (LWJGL API)
|
|
</TITLE>
|
|
|
|
<META NAME="date" CONTENT="2015-07-28">
|
|
|
|
<LINK REL ="stylesheet" TYPE="text/css" HREF="../../../stylesheet.css" TITLE="Style">
|
|
|
|
<SCRIPT type="text/javascript">
|
|
function windowTitle()
|
|
{
|
|
if (location.href.indexOf('is-external=true') == -1) {
|
|
parent.document.title="GLContext (LWJGL API)";
|
|
}
|
|
}
|
|
</SCRIPT>
|
|
<NOSCRIPT>
|
|
</NOSCRIPT>
|
|
|
|
</HEAD>
|
|
|
|
<BODY BGCOLOR="white" onload="windowTitle();">
|
|
<HR>
|
|
|
|
|
|
<!-- ========= START OF TOP NAVBAR ======= -->
|
|
<A NAME="navbar_top"><!-- --></A>
|
|
<A HREF="#skip-navbar_top" title="Skip navigation links"></A>
|
|
<TABLE BORDER="0" WIDTH="100%" CELLPADDING="1" CELLSPACING="0" SUMMARY="">
|
|
<TR>
|
|
<TD COLSPAN=2 BGCOLOR="#EEEEFF" CLASS="NavBarCell1">
|
|
<A NAME="navbar_top_firstrow"><!-- --></A>
|
|
<TABLE BORDER="0" CELLPADDING="0" CELLSPACING="3" SUMMARY="">
|
|
<TR ALIGN="center" VALIGN="top">
|
|
<TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="../../../overview-summary.html"><FONT CLASS="NavBarFont1"><B>Overview</B></FONT></A> </TD>
|
|
<TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="package-summary.html"><FONT CLASS="NavBarFont1"><B>Package</B></FONT></A> </TD>
|
|
<TD BGCOLOR="#FFFFFF" CLASS="NavBarCell1Rev"> <FONT CLASS="NavBarFont1Rev"><B>Class</B></FONT> </TD>
|
|
<TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="class-use/GLContext.html"><FONT CLASS="NavBarFont1"><B>Use</B></FONT></A> </TD>
|
|
<TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="package-tree.html"><FONT CLASS="NavBarFont1"><B>Tree</B></FONT></A> </TD>
|
|
<TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="../../../deprecated-list.html"><FONT CLASS="NavBarFont1"><B>Deprecated</B></FONT></A> </TD>
|
|
<TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="../../../index-all.html"><FONT CLASS="NavBarFont1"><B>Index</B></FONT></A> </TD>
|
|
<TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="../../../help-doc.html"><FONT CLASS="NavBarFont1"><B>Help</B></FONT></A> </TD>
|
|
</TR>
|
|
</TABLE>
|
|
</TD>
|
|
<TD ALIGN="right" VALIGN="top" ROWSPAN=3><EM>
|
|
</EM>
|
|
</TD>
|
|
</TR>
|
|
|
|
<TR>
|
|
<TD BGCOLOR="white" CLASS="NavBarCell2"><FONT SIZE="-2">
|
|
<A HREF="../../../org/lwjgl/opengles/EXTUnpackSubimage.html" title="class in org.lwjgl.opengles"><B>PREV CLASS</B></A>
|
|
<A HREF="../../../org/lwjgl/opengles/GLES20.html" title="class in org.lwjgl.opengles"><B>NEXT CLASS</B></A></FONT></TD>
|
|
<TD BGCOLOR="white" CLASS="NavBarCell2"><FONT SIZE="-2">
|
|
<A HREF="../../../index.html?org/lwjgl/opengles/GLContext.html" target="_top"><B>FRAMES</B></A>
|
|
<A HREF="GLContext.html" target="_top"><B>NO FRAMES</B></A>
|
|
<SCRIPT type="text/javascript">
|
|
<!--
|
|
if(window==top) {
|
|
document.writeln('<A HREF="../../../allclasses-noframe.html"><B>All Classes</B></A>');
|
|
}
|
|
//-->
|
|
</SCRIPT>
|
|
<NOSCRIPT>
|
|
<A HREF="../../../allclasses-noframe.html"><B>All Classes</B></A>
|
|
</NOSCRIPT>
|
|
|
|
|
|
</FONT></TD>
|
|
</TR>
|
|
<TR>
|
|
<TD VALIGN="top" CLASS="NavBarCell3"><FONT SIZE="-2">
|
|
SUMMARY: NESTED | FIELD | <A HREF="#constructor_summary">CONSTR</A> | <A HREF="#method_summary">METHOD</A></FONT></TD>
|
|
<TD VALIGN="top" CLASS="NavBarCell3"><FONT SIZE="-2">
|
|
DETAIL: FIELD | <A HREF="#constructor_detail">CONSTR</A> | <A HREF="#method_detail">METHOD</A></FONT></TD>
|
|
</TR>
|
|
</TABLE>
|
|
<A NAME="skip-navbar_top"></A>
|
|
<!-- ========= END OF TOP NAVBAR ========= -->
|
|
|
|
<HR>
|
|
<!-- ======== START OF CLASS DATA ======== -->
|
|
<H2>
|
|
<FONT SIZE="-1">
|
|
org.lwjgl.opengles</FONT>
|
|
<BR>
|
|
Class GLContext</H2>
|
|
<PRE>
|
|
java.lang.Object
|
|
<IMG SRC="../../../resources/inherit.gif" ALT="extended by "><B>org.lwjgl.opengles.GLContext</B>
|
|
</PRE>
|
|
<HR>
|
|
<DL>
|
|
<DT><PRE>public final class <B>GLContext</B><DT>extends java.lang.Object</DL>
|
|
</PRE>
|
|
|
|
<P>
|
|
<p/>
|
|
Manages GL contexts. Before any rendering is done by a LWJGL system, a call should be made to GLContext.useContext() with a
|
|
context. This will ensure that GLContext has an accurate reflection of the current context's capabilities and function
|
|
pointers.
|
|
<p/>
|
|
This class is thread-safe in the sense that multiple threads can safely call all public methods. The class is also
|
|
thread-aware in the sense that it tracks a per-thread current context (including capabilities and function pointers).
|
|
That way, multiple threads can have multiple contexts current and render to them concurrently.
|
|
<P>
|
|
|
|
<P>
|
|
<DL>
|
|
<DT><B>Version:</B></DT>
|
|
<DD>$Revision: 3279 $
|
|
$Id: GLContext.java 3279 2010-03-11 21:06:49Z spasi $</DD>
|
|
<DT><B>Author:</B></DT>
|
|
<DD>elias_naur <elias_naur@users.sourceforge.net></DD>
|
|
</DL>
|
|
<HR>
|
|
|
|
<P>
|
|
|
|
<!-- ======== CONSTRUCTOR SUMMARY ======== -->
|
|
|
|
<A NAME="constructor_summary"><!-- --></A>
|
|
<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
|
|
<TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor">
|
|
<TH ALIGN="left" COLSPAN="2"><FONT SIZE="+2">
|
|
<B>Constructor Summary</B></FONT></TH>
|
|
</TR>
|
|
<TR BGCOLOR="white" CLASS="TableRowColor">
|
|
<TD><CODE><B><A HREF="../../../org/lwjgl/opengles/GLContext.html#GLContext()">GLContext</A></B>()</CODE>
|
|
|
|
<BR>
|
|
</TD>
|
|
</TR>
|
|
</TABLE>
|
|
|
|
<!-- ========== METHOD SUMMARY =========== -->
|
|
|
|
<A NAME="method_summary"><!-- --></A>
|
|
<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
|
|
<TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor">
|
|
<TH ALIGN="left" COLSPAN="2"><FONT SIZE="+2">
|
|
<B>Method Summary</B></FONT></TH>
|
|
</TR>
|
|
<TR BGCOLOR="white" CLASS="TableRowColor">
|
|
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
|
|
<CODE>static <A HREF="../../../org/lwjgl/opengles/ContextCapabilities.html" title="class in org.lwjgl.opengles">ContextCapabilities</A></CODE></FONT></TD>
|
|
<TD><CODE><B><A HREF="../../../org/lwjgl/opengles/GLContext.html#getCapabilities()">getCapabilities</A></B>()</CODE>
|
|
|
|
<BR>
|
|
Get the current capabilities instance.</TD>
|
|
</TR>
|
|
<TR BGCOLOR="white" CLASS="TableRowColor">
|
|
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
|
|
<CODE>static void</CODE></FONT></TD>
|
|
<TD><CODE><B><A HREF="../../../org/lwjgl/opengles/GLContext.html#loadOpenGLLibrary()">loadOpenGLLibrary</A></B>()</CODE>
|
|
|
|
<BR>
|
|
If the OpenGL reference count is 0, the library is loaded.</TD>
|
|
</TR>
|
|
<TR BGCOLOR="white" CLASS="TableRowColor">
|
|
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
|
|
<CODE>static void</CODE></FONT></TD>
|
|
<TD><CODE><B><A HREF="../../../org/lwjgl/opengles/GLContext.html#unloadOpenGLLibrary()">unloadOpenGLLibrary</A></B>()</CODE>
|
|
|
|
<BR>
|
|
The OpenGL library reference count is decremented, and if it reaches 0, the library is unloaded.</TD>
|
|
</TR>
|
|
<TR BGCOLOR="white" CLASS="TableRowColor">
|
|
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
|
|
<CODE>static void</CODE></FONT></TD>
|
|
<TD><CODE><B><A HREF="../../../org/lwjgl/opengles/GLContext.html#useContext(java.lang.Object)">useContext</A></B>(java.lang.Object context)</CODE>
|
|
|
|
<BR>
|
|
Makes a GL context the current LWJGL context by loading GL function pointers.</TD>
|
|
</TR>
|
|
</TABLE>
|
|
<A NAME="methods_inherited_from_class_java.lang.Object"><!-- --></A>
|
|
<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
|
|
<TR BGCOLOR="#EEEEFF" CLASS="TableSubHeadingColor">
|
|
<TH ALIGN="left"><B>Methods inherited from class java.lang.Object</B></TH>
|
|
</TR>
|
|
<TR BGCOLOR="white" CLASS="TableRowColor">
|
|
<TD><CODE>clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait</CODE></TD>
|
|
</TR>
|
|
</TABLE>
|
|
|
|
<P>
|
|
|
|
<!-- ========= CONSTRUCTOR DETAIL ======== -->
|
|
|
|
<A NAME="constructor_detail"><!-- --></A>
|
|
<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
|
|
<TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor">
|
|
<TH ALIGN="left" COLSPAN="1"><FONT SIZE="+2">
|
|
<B>Constructor Detail</B></FONT></TH>
|
|
</TR>
|
|
</TABLE>
|
|
|
|
<A NAME="GLContext()"><!-- --></A><H3>
|
|
GLContext</H3>
|
|
<PRE>
|
|
public <B>GLContext</B>()</PRE>
|
|
<DL>
|
|
</DL>
|
|
|
|
<!-- ============ METHOD DETAIL ========== -->
|
|
|
|
<A NAME="method_detail"><!-- --></A>
|
|
<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
|
|
<TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor">
|
|
<TH ALIGN="left" COLSPAN="1"><FONT SIZE="+2">
|
|
<B>Method Detail</B></FONT></TH>
|
|
</TR>
|
|
</TABLE>
|
|
|
|
<A NAME="getCapabilities()"><!-- --></A><H3>
|
|
getCapabilities</H3>
|
|
<PRE>
|
|
public static <A HREF="../../../org/lwjgl/opengles/ContextCapabilities.html" title="class in org.lwjgl.opengles">ContextCapabilities</A> <B>getCapabilities</B>()</PRE>
|
|
<DL>
|
|
<DD>Get the current capabilities instance. It contains the flags used
|
|
to test for support of a particular extension.
|
|
<P>
|
|
<DD><DL>
|
|
|
|
<DT><B>Returns:</B><DD>The current capabilities instance.</DL>
|
|
</DD>
|
|
</DL>
|
|
<HR>
|
|
|
|
<A NAME="useContext(java.lang.Object)"><!-- --></A><H3>
|
|
useContext</H3>
|
|
<PRE>
|
|
public static void <B>useContext</B>(java.lang.Object context)
|
|
throws <A HREF="../../../org/lwjgl/LWJGLException.html" title="class in org.lwjgl">LWJGLException</A></PRE>
|
|
<DL>
|
|
<DD>Makes a GL context the current LWJGL context by loading GL function pointers. The context must be current before a call to
|
|
this method! Instead it simply ensures that the current context is reflected accurately by GLContext's extension caps and
|
|
function pointers. Use useContext(null) when no context is active. <p>If the context is the same as last time, then this is
|
|
a no-op. <p>If the context has not been encountered before it will be fully initialized from scratch. Otherwise a cached set
|
|
of caps and function pointers will be used. <p>The reference to the context is held in a weak reference; therefore if no
|
|
strong reference exists to the GL context it will automatically be forgotten by the VM at an indeterminate point in the
|
|
future, freeing up a little RAM.
|
|
<P>
|
|
<DD><DL>
|
|
<DT><B>Parameters:</B><DD><CODE>context</CODE> - The context object, which uniquely identifies a GL context. If context is null, the native stubs are
|
|
unloaded.
|
|
<DT><B>Throws:</B>
|
|
<DD><CODE><A HREF="../../../org/lwjgl/LWJGLException.html" title="class in org.lwjgl">LWJGLException</A></CODE> - if context non-null, and the gl library can't be loaded or the basic GL11 functions can't be loaded</DL>
|
|
</DD>
|
|
</DL>
|
|
<HR>
|
|
|
|
<A NAME="loadOpenGLLibrary()"><!-- --></A><H3>
|
|
loadOpenGLLibrary</H3>
|
|
<PRE>
|
|
public static void <B>loadOpenGLLibrary</B>()
|
|
throws <A HREF="../../../org/lwjgl/LWJGLException.html" title="class in org.lwjgl">LWJGLException</A></PRE>
|
|
<DL>
|
|
<DD>If the OpenGL reference count is 0, the library is loaded. The reference count is then incremented.
|
|
<P>
|
|
<DD><DL>
|
|
|
|
<DT><B>Throws:</B>
|
|
<DD><CODE><A HREF="../../../org/lwjgl/LWJGLException.html" title="class in org.lwjgl">LWJGLException</A></CODE></DL>
|
|
</DD>
|
|
</DL>
|
|
<HR>
|
|
|
|
<A NAME="unloadOpenGLLibrary()"><!-- --></A><H3>
|
|
unloadOpenGLLibrary</H3>
|
|
<PRE>
|
|
public static void <B>unloadOpenGLLibrary</B>()</PRE>
|
|
<DL>
|
|
<DD>The OpenGL library reference count is decremented, and if it reaches 0, the library is unloaded.
|
|
<P>
|
|
<DD><DL>
|
|
</DL>
|
|
</DD>
|
|
</DL>
|
|
<!-- ========= END OF CLASS DATA ========= -->
|
|
<HR>
|
|
|
|
|
|
<!-- ======= START OF BOTTOM NAVBAR ====== -->
|
|
<A NAME="navbar_bottom"><!-- --></A>
|
|
<A HREF="#skip-navbar_bottom" title="Skip navigation links"></A>
|
|
<TABLE BORDER="0" WIDTH="100%" CELLPADDING="1" CELLSPACING="0" SUMMARY="">
|
|
<TR>
|
|
<TD COLSPAN=2 BGCOLOR="#EEEEFF" CLASS="NavBarCell1">
|
|
<A NAME="navbar_bottom_firstrow"><!-- --></A>
|
|
<TABLE BORDER="0" CELLPADDING="0" CELLSPACING="3" SUMMARY="">
|
|
<TR ALIGN="center" VALIGN="top">
|
|
<TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="../../../overview-summary.html"><FONT CLASS="NavBarFont1"><B>Overview</B></FONT></A> </TD>
|
|
<TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="package-summary.html"><FONT CLASS="NavBarFont1"><B>Package</B></FONT></A> </TD>
|
|
<TD BGCOLOR="#FFFFFF" CLASS="NavBarCell1Rev"> <FONT CLASS="NavBarFont1Rev"><B>Class</B></FONT> </TD>
|
|
<TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="class-use/GLContext.html"><FONT CLASS="NavBarFont1"><B>Use</B></FONT></A> </TD>
|
|
<TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="package-tree.html"><FONT CLASS="NavBarFont1"><B>Tree</B></FONT></A> </TD>
|
|
<TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="../../../deprecated-list.html"><FONT CLASS="NavBarFont1"><B>Deprecated</B></FONT></A> </TD>
|
|
<TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="../../../index-all.html"><FONT CLASS="NavBarFont1"><B>Index</B></FONT></A> </TD>
|
|
<TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="../../../help-doc.html"><FONT CLASS="NavBarFont1"><B>Help</B></FONT></A> </TD>
|
|
</TR>
|
|
</TABLE>
|
|
</TD>
|
|
<TD ALIGN="right" VALIGN="top" ROWSPAN=3><EM>
|
|
</EM>
|
|
</TD>
|
|
</TR>
|
|
|
|
<TR>
|
|
<TD BGCOLOR="white" CLASS="NavBarCell2"><FONT SIZE="-2">
|
|
<A HREF="../../../org/lwjgl/opengles/EXTUnpackSubimage.html" title="class in org.lwjgl.opengles"><B>PREV CLASS</B></A>
|
|
<A HREF="../../../org/lwjgl/opengles/GLES20.html" title="class in org.lwjgl.opengles"><B>NEXT CLASS</B></A></FONT></TD>
|
|
<TD BGCOLOR="white" CLASS="NavBarCell2"><FONT SIZE="-2">
|
|
<A HREF="../../../index.html?org/lwjgl/opengles/GLContext.html" target="_top"><B>FRAMES</B></A>
|
|
<A HREF="GLContext.html" target="_top"><B>NO FRAMES</B></A>
|
|
<SCRIPT type="text/javascript">
|
|
<!--
|
|
if(window==top) {
|
|
document.writeln('<A HREF="../../../allclasses-noframe.html"><B>All Classes</B></A>');
|
|
}
|
|
//-->
|
|
</SCRIPT>
|
|
<NOSCRIPT>
|
|
<A HREF="../../../allclasses-noframe.html"><B>All Classes</B></A>
|
|
</NOSCRIPT>
|
|
|
|
|
|
</FONT></TD>
|
|
</TR>
|
|
<TR>
|
|
<TD VALIGN="top" CLASS="NavBarCell3"><FONT SIZE="-2">
|
|
SUMMARY: NESTED | FIELD | <A HREF="#constructor_summary">CONSTR</A> | <A HREF="#method_summary">METHOD</A></FONT></TD>
|
|
<TD VALIGN="top" CLASS="NavBarCell3"><FONT SIZE="-2">
|
|
DETAIL: FIELD | <A HREF="#constructor_detail">CONSTR</A> | <A HREF="#method_detail">METHOD</A></FONT></TD>
|
|
</TR>
|
|
</TABLE>
|
|
<A NAME="skip-navbar_bottom"></A>
|
|
<!-- ======== END OF BOTTOM NAVBAR ======= -->
|
|
|
|
<HR>
|
|
<i>Copyright © 2002-2009 lwjgl.org. All Rights Reserved.</i>
|
|
</BODY>
|
|
</HTML>
|