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-<?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>glGetActiveUniformBlock
</title><meta name="generator" content="DocBook XSL Stylesheets V1.75.2" /></head><body><div class="refentry" title="glGetActiveUniformBlock"><a id="glGetActiveUniformBlock"></a><div class="titlepage"></div><div class="refnamediv"><h2>Name</h2><p>glGetActiveUniformBlock — query information about an active uniform block</p></div><div class="refsynopsisdiv" title="C Specification"><h2>C Specification</h2><div class="funcsynopsis"><table border="0" summary="Function synopsis" cellspacing="0" cellpadding="0" class="funcprototype-table"><tr><td><code class="funcdef">void <b class="fsfunc">glGetActiveUniformBlockiv</b>(</code></td><td>GLuint <var class="pdparam">program</var>, </td></tr><tr><td> </td><td>GLuint <var class="pdparam">uniformBlockIndex</var>, </td></tr><tr><td> </td><td>GLenum <var class="pdparam">pname</var>, </td></tr><tr><td> </td><td>GLint <var class="pdparam">params</var><code>)</code>;</td></tr></table><div class="funcprototype-spacer"> </div></div></div><div class="refsect1" title="Parameters"><a id="parameters"></a><h2>Parameters</h2><div class="variablelist"><dl><dt><span class="term"><em class="parameter"><code>program</code></em></span></dt><dd><p>
+<?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>glGetActiveUniformBlock
- OpenGL 3.3 Reference Pages</title><meta name="generator" content="DocBook XSL Stylesheets V1.69.1" /></head><body><div class="refentry" lang="en" xml:lang="en"><a id="glGetActiveUniformBlock"></a><div class="titlepage"></div><div class="refnamediv"><h2>Name</h2><p>glGetActiveUniformBlock — query information about an active uniform block</p></div><div class="refsynopsisdiv"><h2>C Specification</h2><div class="funcsynopsis"><table border="0" summary="Function synopsis" cellspacing="0" cellpadding="0"><tr><td><code class="funcdef">void <b class="fsfunc">glGetActiveUniformBlockiv</b>(</code></td><td>GLuint </td><td><var class="pdparam">program</var>, </td></tr><tr><td> </td><td>GLuint </td><td><var class="pdparam">uniformBlockIndex</var>, </td></tr><tr><td> </td><td>GLenum </td><td><var class="pdparam">pname</var>, </td></tr><tr><td> </td><td>GLint * </td><td><var class="pdparam">params</var><code>)</code>;</td></tr></table></div></div><div class="refsect1" lang="en" xml:lang="en"><a id="parameters"></a><h2>Parameters</h2><div class="variablelist"><dl><dt><span class="term"><em class="parameter"><code>program</code></em></span></dt><dd><p>
Specifies the name of a program containing the uniform block.
</p></dd><dt><span class="term"><em class="parameter"><code>uniformBlockIndex</code></em></span></dt><dd><p>
Specifies the index of the uniform block within <em class="parameter"><code>program</code></em>.
Specifies the name of the parameter to query.
</p></dd><dt><span class="term"><em class="parameter"><code>params</code></em></span></dt><dd><p>
Specifies the address of a variable to receive the result of the query.
- </p></dd></dl></div></div><div class="refsect1"
title="Description"><a id="description"></a><h2>Description</h2><p>
+ </p></dd></dl></div></div><div class="refsect1"
lang="en" xml:lang="en"><a id="description"></a><h2>Description</h2><p>
<code class="function">glGetActiveUniformBlockiv</code> retrieves information about an active uniform block within <em class="parameter"><code>program</code></em>.
</p><p>
<em class="parameter"><code>program</code></em> must be the name of a program object for which the command
- <a class="citerefentry" href="glLinkProgram.xml"><span class="citerefentry"><span class="refentrytitle">glLinkProgram</span></span></a> must have been called in the past, although it is not required that
- <a class="citerefentry" href="glLinkProgram.xml"><span class="citerefentry"><span class="refentrytitle">glLinkProgram</span></span></a> must have succeeded. The link could have failed because the number
+ <a href="glLinkProgram.xml"><span class="citerefentry"><span class="refentrytitle">glLinkProgram</span></span></a> must have been called in the past, although it is not required that
+ <a href="glLinkProgram.xml"><span class="citerefentry"><span class="refentrytitle">glLinkProgram</span></span></a> must have succeeded. The link could have failed because the number
of active uniforms exceeded the limit.
</p><p>
<em class="parameter"><code>uniformBlockIndex</code></em> is an active uniform block index of <em class="parameter"><code>program</code></em>, and must be less than the value
If <em class="parameter"><code>pname</code></em> is <code class="constant">GL_UNIFORM_BLOCK_REFERENCED_BY_VERTEX_SHADER</code>, <code class="constant">GL_UNIFORM_BLOCK_REFERENCED_BY_GEOMETRY_SHADER</code>,
or <code class="constant">GL_UNIFORM_BLOCK_REFERENCED_BY_FRAGMENT_SHADER</code>, then a boolean value indicating whether the uniform block identified by
<em class="parameter"><code>uniformBlockIndex</code></em> is referenced by the vertex, geometry, or fragment programming stages of program, respectively, is returned.
- </p></div><div class="refsect1"
title="Errors"><a id="errors"></a><h2>Errors</h2><p>
+ </p></div><div class="refsect1"
lang="en" xml:lang="en"><a id="errors"></a><h2>Errors</h2><p>
<code class="constant">GL_INVALID_VALUE</code> is generated if <em class="parameter"><code>uniformBlockIndex</code></em> is greater than or equal to the value
of <code class="constant">GL_ACTIVE_UNIFORM_BLOCKS</code> or is not the index of an active uniform block in <em class="parameter"><code>program</code></em>.
</p><p>
<code class="constant">GL_INVALID_ENUM</code> is generated if <em class="parameter"><code>pname</code></em> is not one of the accepted tokens.
</p><p>
<code class="constant">GL_INVALID_OPERATION</code> is generated if <em class="parameter"><code>program</code></em> is not the name of a program object for which
- <a class="citerefentry" href="glLinkProgram.xml"><span class="citerefentry"><span class="refentrytitle">glLinkProgram</span></span></a> has been called in the past.
- </p></div><div class="refsect1"
title="Notes"><a id="notes"></a><h2>Notes</h2><p>
+ <a href="glLinkProgram.xml"><span class="citerefentry"><span class="refentrytitle">glLinkProgram</span></span></a> has been called in the past.
+ </p></div><div class="refsect1"
lang="en" xml:lang="en"><a id="notes"></a><h2>Notes</h2><p>
<code class="function">glGetActiveUniformBlockiv</code> is available only if the GL version is 3.1 or greater.
- </p></div><div class="refsect1"
title="See Also"><a id="seealso"></a><h2>See Also</h2><p>
- <a class="citerefentry" href="glGetActiveUniformBlockName.xml"><span class="citerefentry"><span class="refentrytitle">glGetActiveUniformBlockName</span></span></a>,
- <a class="citerefentry" href="glGetUniformBlockIndex.xml"><span class="citerefentry"><span class="refentrytitle">glGetUniformBlockIndex</span></span></a>,
- <a class="citerefentry" href="glLinkProgram.xml"><span class="citerefentry"><span class="refentrytitle">glLinkProgram</span></span></a>
- </p></div><div class="refsect1"
title="Copyright"><a id="Copyright"></a><h2>Copyright</h2><p>
- Copyright <span class="trademark"></span>© 2010 Khronos Group.
+ </p></div><div class="refsect1"
lang="en" xml:lang="en"><a id="seealso"></a><h2>See Also</h2><p>
+ <a href="glGetActiveUniformBlockName.xml"><span class="citerefentry"><span class="refentrytitle">glGetActiveUniformBlockName</span></span></a>,
+ <a href="glGetUniformBlockIndex.xml"><span class="citerefentry"><span class="refentrytitle">glGetUniformBlockIndex</span></span></a>,
+ <a href="glLinkProgram.xml"><span class="citerefentry"><span class="refentrytitle">glLinkProgram</span></span></a>
+ </p></div><div class="refsect1"
lang="en" xml:lang="en"><a id="Copyright"></a><h2>Copyright</h2><p>
+ Copyright <span class="trademark"></span>© 2010-2013 Khronos Group.
This material may be distributed subject to the terms and conditions set forth in
the Open Publication License, v 1.0, 8 June 1999.
- <a class="ulink" href="http://opencontent.org/openpub/" target="_top">http://opencontent.org/openpub/</a>.
+ <a href="http://opencontent.org/openpub/" target="_top">http://opencontent.org/openpub/</a>.
</p></div></div></body></html>
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