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1 | <?xml version="1.0" encoding="UTF-8"?> |
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4 | <?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" pref:renderer="mathplayer-dl"><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8" /><link rel="stylesheet" type="text/css" href="opengl-man.css" /><title>memoryBarrierShared - OpenGL Shading Language (GLSL)</title><meta name="generator" content="DocBook XSL Stylesheets V1.69.1" /></head><body><div class="refentry" lang="en" xml:lang="en"><a id="memoryBarrierShared"></a><div class="titlepage"></div><div class="refnamediv"><h2>Name</h2><p>memoryBarrierShared — controls the ordering of operations on shared variables issued by a single shader invocation</p></div><div class="refsynopsisdiv"><h2>Declaration</h2><div class="funcsynopsis"><p><code class="funcdef">void <b class="fsfunc">memoryBarrierShared</b>(</code>void<code>)</code>;</p></div></div><div class="refsect1" lang="en" xml:lang="en"><a id="description"></a><h2>Description</h2><p> | |
5 | <code class="function">memoryBarrierShared</code> waits on the completion of all memory accesses resulting | |
6 | from the use of shared variables and then returns with no other effect. When this function returns, the | |
7 | results of any modifications to the content of shared variables will be visible | |
8 | to any access to the same buffer from other shader invocations. In particular, | |
9 | any modifications made in one shader stage are guaranteed to be visible to accesses | |
10 | performed by shader invocations in subsequent stages when those invocations were triggered by the | |
11 | execution of the original shader invocation (e.g., fragment shader invocations for a primitive resulting | |
12 | from a particular geometry shader invocation). | |
13 | </p><p> | |
14 | <code class="function">memoryBarrierShared</code> is available only in the compute language. | |
15 | </p></div><div class="refsect1" lang="en" xml:lang="en"><a id="versions"></a><h2>Version Support</h2><div class="informaltable"><table border="1"><colgroup><col align="left" /><col align="center" /><col align="center" /><col align="center" /><col align="center" /><col align="center" /><col align="center" /><col align="center" /><col align="center" /><col align="center" /><col align="center" /></colgroup><thead><tr><th align="left"><span class="bold"><strong>Function</strong></span></th><th align="left"><span class="bold"><strong>Version 1.10</strong></span></th><th align="left"><span class="bold"><strong>Version 1.20</strong></span></th><th align="left"><span class="bold"><strong>Version 1.30</strong></span></th><th align="left"><span class="bold"><strong>Version 1.40</strong></span></th><th align="left"><span class="bold"><strong>Version 1.50</strong></span></th><th align="left"><span class="bold"><strong>Version 3.30</strong></span></th><th align="left"><span class="bold"><strong>Version 4.00</strong></span></th><th align="left"><span class="bold"><strong>Version 4.10</strong></span></th><th align="left"><span class="bold"><strong>Version 4.20</strong></span></th><th align="center"><span class="bold"><strong>Version 4.30</strong></span></th></tr><tr><th align="left">memoryBarrierShared</th><th align="center"><span class="emphasis"><em>-</em></span></th><th align="center"><span class="emphasis"><em>-</em></span></th><th align="center"><span class="emphasis"><em>-</em></span></th><th align="center"><span class="emphasis"><em>-</em></span></th><th align="center"><span class="emphasis"><em>-</em></span></th><th align="center"><span class="emphasis"><em>-</em></span></th><th align="center"><span class="emphasis"><em>-</em></span></th><th align="center"><span class="emphasis"><em>-</em></span></th><th align="center"><span class="emphasis"><em>-</em></span></th><th align="center"><span class="emphasis"><em>Y</em></span></th></tr></thead></table></div></div><div class="refsect1" lang="en" xml:lang="en"><a id="seealso"></a><h2>See Also</h2><p> | |
16 | <a href="memoryBarrier.xml"><span class="citerefentry"><span class="refentrytitle">memoryBarrier</span></span></a>, | |
17 | <a href="memoryBarrierImage.xml"><span class="citerefentry"><span class="refentrytitle">memoryBarrierImage</span></span></a>, | |
18 | <a href="memoryBarrierBuffer.xml"><span class="citerefentry"><span class="refentrytitle">memoryBarrierBuffer</span></span></a>, | |
19 | <a href="groupMemoryBarrier.xml"><span class="citerefentry"><span class="refentrytitle">groupMemoryBarrier</span></span></a> | |
20 | </p></div><div class="refsect1" lang="en" xml:lang="en"><a id="Copyright"></a><h2>Copyright</h2><p> | |
21 | Copyright <span class="trademark"></span>© 2011-2012 Khronos Group. | |
22 | This material may be distributed subject to the terms and conditions set forth in | |
23 | the Open Publication License, v 1.0, 8 June 1999. | |
24 | <a href="http://opencontent.org/openpub/" target="_top">http://opencontent.org/openpub/</a>. | |
25 | </p></div></div></body></html> |