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glInvalidateBufferSubData.xhtml
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glInvalidateBufferSubData.xhtml
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<div class="refentry" id="glInvalidateBufferSubData">
<div class="titlepage"></div>
<div class="refnamediv">
<h2>Name</h2>
<p>glInvalidateBufferSubData — invalidate a region of a buffer object's data store</p>
</div>
<div class="refsynopsisdiv">
<h2>C Specification</h2>
<div class="funcsynopsis">
<table style="border: 0; cellspacing: 0; cellpadding: 0;" class="funcprototype-table">
<tr>
<td>
<code class="funcdef">void <strong class="fsfunc">glInvalidateBufferSubData</strong>(</code>
</td>
<td>GLuint <var class="pdparam">buffer</var>, </td>
</tr>
<tr>
<td> </td>
<td>GLintptr <var class="pdparam">offset</var>, </td>
</tr>
<tr>
<td> </td>
<td>GLsizeiptr <var class="pdparam">length</var><code>)</code>;</td>
</tr>
</table>
<div class="funcprototype-spacer"> </div>
</div>
</div>
<div class="refsect1" id="parameters">
<h2>Parameters</h2>
<div class="variablelist">
<dl class="variablelist">
<dt>
<span class="term">
<em class="parameter">
<code>buffer</code>
</em>
</span>
</dt>
<dd>
<p>
The name of a buffer object, a subrange of whose data store to invalidate.
</p>
</dd>
<dt>
<span class="term">
<em class="parameter">
<code>offset</code>
</em>
</span>
</dt>
<dd>
<p>
The offset within the buffer's data store of the start of the range to be invalidated.
</p>
</dd>
<dt>
<span class="term">
<em class="parameter">
<code>length</code>
</em>
</span>
</dt>
<dd>
<p>
The length of the range within the buffer's data store to be invalidated.
</p>
</dd>
</dl>
</div>
</div>
<div class="refsect1" id="description">
<h2>Description</h2>
<p>
<code class="function">glInvalidateBufferSubData</code> invalidates all or part of the
content of the data store of a buffer object. After invalidation, the content
of the specified range of the buffer's data store becomes undefined. The
start of the range is given by <em class="parameter"><code>offset</code></em> and its size
is given by <em class="parameter"><code>length</code></em>, both measured in basic machine units.
</p>
</div>
<div class="refsect1" id="errors">
<h2>Errors</h2>
<p>
<code class="constant">GL_INVALID_VALUE</code> is generated if <em class="parameter"><code>offset</code></em> or
<em class="parameter"><code>length</code></em> is negative, or if <em class="parameter"><code>offset</code></em> +
<em class="parameter"><code>length</code></em> is greater than the value of <code class="constant">GL_BUFFER_SIZE</code>
for <em class="parameter"><code>buffer</code></em>.
</p>
<p>
<code class="constant">GL_INVALID_VALUE</code> is generated if <em class="parameter"><code>buffer</code></em> is not the
name of an existing buffer object.
</p>
<p>
<code class="constant">GL_INVALID_OPERATION</code> is generated if any part of <em class="parameter"><code>buffer</code></em>
is currently mapped.
</p>
</div>
<div class="refsect1" id="associatedgets">
<h2>Associated Gets</h2>
<p>
<a class="citerefentry" href="glGetBufferParameter"><span class="citerefentry"><span class="refentrytitle">glGetBufferParameter</span></span></a> with argument <code class="constant">GL_BUFFER_SIZE</code>
</p>
</div>
{$pipelinestall}{$examples}
<div class="refsect1" id="versions">
<h2>Version Support</h2>
<div class="informaltable">
<table style="border-collapse: collapse; border-top: 2px solid ; border-bottom: 2px solid ; border-left: 2px solid ; border-right: 2px solid ; ">
<colgroup>
<col style="text-align: left; "/>
<col style="text-align: center; " class="firstvers"/>
<col style="text-align: center; "/>
<col style="text-align: center; "/>
<col style="text-align: center; "/>
<col style="text-align: center; "/>
<col style="text-align: center; "/>
<col style="text-align: center; "/>
<col style="text-align: center; "/>
<col style="text-align: center; "/>
<col style="text-align: center; "/>
<col style="text-align: center; "/>
<col style="text-align: center; " class="lastvers"/>
</colgroup>
<thead>
<tr>
<th style="text-align: left; border-right: 2px solid ; ">
</th>
<th style="text-align: center; border-bottom: 2px solid ; " colspan="12">
<span class="bold"><strong>OpenGL Version</strong></span>
</th>
</tr>
<tr>
<th style="text-align: left; border-right: 2px solid ; border-bottom: 2px solid ; ">
<span class="bold"><strong>Function / Feature Name</strong></span>
</th>
<th style="text-align: center; border-right: 2px solid ; border-bottom: 2px solid ; ">
<span class="bold"><strong>2.0</strong></span>
</th>
<th style="text-align: center; border-right: 2px solid ; border-bottom: 2px solid ; ">
<span class="bold"><strong>2.1</strong></span>
</th>
<th style="text-align: center; border-right: 2px solid ; border-bottom: 2px solid ; ">
<span class="bold"><strong>3.0</strong></span>
</th>
<th style="text-align: center; border-right: 2px solid ; border-bottom: 2px solid ; ">
<span class="bold"><strong>3.1</strong></span>
</th>
<th style="text-align: center; border-right: 2px solid ; border-bottom: 2px solid ; ">
<span class="bold"><strong>3.2</strong></span>
</th>
<th style="text-align: center; border-right: 2px solid ; border-bottom: 2px solid ; ">
<span class="bold"><strong>3.3</strong></span>
</th>
<th style="text-align: center; border-right: 2px solid ; border-bottom: 2px solid ; ">
<span class="bold"><strong>4.0</strong></span>
</th>
<th style="text-align: center; border-right: 2px solid ; border-bottom: 2px solid ; ">
<span class="bold"><strong>4.1</strong></span>
</th>
<th style="text-align: center; border-right: 2px solid ; border-bottom: 2px solid ; ">
<span class="bold"><strong>4.2</strong></span>
</th>
<th style="text-align: center; border-right: 2px solid ; border-bottom: 2px solid ; ">
<span class="bold"><strong>4.3</strong></span>
</th>
<th style="text-align: center; border-right: 2px solid ; border-bottom: 2px solid ; ">
<span class="bold"><strong>4.4</strong></span>
</th>
<th style="text-align: center; border-bottom: 2px solid ; ">
<span class="bold"><strong>4.5</strong></span>
</th>
</tr>
</thead>
<tbody>
<tr>
<td style="text-align: left; border-right: 2px solid ; ">
<code class="function">glInvalidateBufferSubData</code>
</td>
<td style="text-align: center; border-right: 2px solid ; ">-</td>
<td style="text-align: center; border-right: 2px solid ; ">-</td>
<td style="text-align: center; border-right: 2px solid ; ">-</td>
<td style="text-align: center; border-right: 2px solid ; ">-</td>
<td style="text-align: center; border-right: 2px solid ; ">-</td>
<td style="text-align: center; border-right: 2px solid ; ">-</td>
<td style="text-align: center; border-right: 2px solid ; ">-</td>
<td style="text-align: center; border-right: 2px solid ; ">-</td>
<td style="text-align: center; border-right: 2px solid ; ">-</td>
<td style="text-align: center; border-right: 2px solid ; ">✔</td>
<td style="text-align: center; border-right: 2px solid ; ">✔</td>
<td style="text-align: center; ">✔</td>
</tr>
</tbody>
</table>
</div>
</div>
<div class="refsect1" id="seealso">
<h2>See Also</h2>
<p>
<a class="citerefentry" href="glInvalidateTexSubImage"><span class="citerefentry"><span class="refentrytitle">glInvalidateTexSubImage</span></span></a>,,
<a class="citerefentry" href="glInvalidateTexImage"><span class="citerefentry"><span class="refentrytitle">glInvalidateTexImage</span></span></a>,
<a class="citerefentry" href="glInvalidateBufferData"><span class="citerefentry"><span class="refentrytitle">glInvalidateBufferData</span></span></a>,
<a class="citerefentry" href="glInvalidateFramebuffer"><span class="citerefentry"><span class="refentrytitle">glInvalidateFramebuffer</span></span></a>,
<a class="citerefentry" href="glInvalidateSubFramebuffer"><span class="citerefentry"><span class="refentrytitle">glInvalidateSubFramebuffer</span></span></a>.
</p>
</div>
<div class="refsect1" id="Copyright">
<h2>Copyright</h2>
<p>
Copyright © 2013-2014 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="link" href="http://opencontent.org/openpub/" target="_top">http://opencontent.org/openpub/</a>.
</p>
</div>
</div>