<div class="refentry" id="imageAtomicExchange">

<div class="titlepage"></div>

<div class="refnamediv">

<h2>Name</h2>

<p>imageAtomicExchange — atomically store supplied data into memory and return the original value from memory</p>

</div>

<div class="refsynopsisdiv">

<h2>Declaration</h2>

<div class="funcsynopsis">

<table style="border: 0; cellspacing: 0; cellpadding: 0;" class="funcprototype-table">

<tr>

<td>

<code class="funcdef">uint <strong class="fsfunc">imageAtomicExchange</strong>(</code>

</td>

<td>gimage1D <var class="pdparam">image</var>, </td>

</tr>

<tr>

<td> </td>

<td>int <var class="pdparam">P</var>, </td>

</tr>

<tr>

<td> </td>

<td>uint <var class="pdparam">data</var><code>)</code>;</td>

</tr>

</table>

<div class="funcprototype-spacer"> </div>

<table style="border: 0; cellspacing: 0; cellpadding: 0;" class="funcprototype-table">

<tr>

<td>

<code class="funcdef">uint <strong class="fsfunc">imageAtomicExchange</strong>(</code>

</td>

<td>gimage2D <var class="pdparam">image</var>, </td>

</tr>

<tr>

<td> </td>

<td>ivec2 <var class="pdparam">P</var>, </td>

</tr>

<tr>

<td> </td>

<td>uint <var class="pdparam">data</var><code>)</code>;</td>

</tr>

</table>

<div class="funcprototype-spacer"> </div>

<table style="border: 0; cellspacing: 0; cellpadding: 0;" class="funcprototype-table">

<tr>

<td>

<code class="funcdef">uint <strong class="fsfunc">imageAtomicExchange</strong>(</code>

</td>

<td>gimage3D <var class="pdparam">image</var>, </td>

</tr>

<tr>

<td> </td>

<td>ivec3 <var class="pdparam">P</var>, </td>

</tr>

<tr>

<td> </td>

<td>uint <var class="pdparam">data</var><code>)</code>;</td>

</tr>

</table>

<div class="funcprototype-spacer"> </div>

<table style="border: 0; cellspacing: 0; cellpadding: 0;" class="funcprototype-table">

<tr>

<td>

<code class="funcdef">uint <strong class="fsfunc">imageAtomicExchange</strong>(</code>

</td>

<td>gimage2DRect <var class="pdparam">image</var>, </td>

</tr>

<tr>

<td> </td>

<td>ivec2 <var class="pdparam">P</var>, </td>

</tr>

<tr>

<td> </td>

<td>uint <var class="pdparam">data</var><code>)</code>;</td>

</tr>

</table>

<div class="funcprototype-spacer"> </div>

<table style="border: 0; cellspacing: 0; cellpadding: 0;" class="funcprototype-table">

<tr>

<td>

<code class="funcdef">uint <strong class="fsfunc">imageAtomicExchange</strong>(</code>

</td>

<td>gimageCube <var class="pdparam">image</var>, </td>

</tr>

<tr>

<td> </td>

<td>ivec3 <var class="pdparam">P</var>, </td>

</tr>

<tr>

<td> </td>

<td>uint <var class="pdparam">data</var><code>)</code>;</td>

</tr>

</table>

<div class="funcprototype-spacer"> </div>

<table style="border: 0; cellspacing: 0; cellpadding: 0;" class="funcprototype-table">

<tr>

<td>

<code class="funcdef">uint <strong class="fsfunc">imageAtomicExchange</strong>(</code>

</td>

<td>gbufferImage <var class="pdparam">image</var>, </td>

</tr>

<tr>

<td> </td>

<td>int <var class="pdparam">P</var>, </td>

</tr>

<tr>

<td> </td>

<td>uint <var class="pdparam">data</var><code>)</code>;</td>

</tr>

</table>

<div class="funcprototype-spacer"> </div>

<table style="border: 0; cellspacing: 0; cellpadding: 0;" class="funcprototype-table">

<tr>

<td>

<code class="funcdef">uint <strong class="fsfunc">imageAtomicExchange</strong>(</code>

</td>

<td>gimage1DArray <var class="pdparam">image</var>, </td>

</tr>

<tr>

<td> </td>

<td>ivec2 <var class="pdparam">P</var>, </td>

</tr>

<tr>

<td> </td>

<td>uint <var class="pdparam">data</var><code>)</code>;</td>

</tr>

</table>

<div class="funcprototype-spacer"> </div>

<table style="border: 0; cellspacing: 0; cellpadding: 0;" class="funcprototype-table">

<tr>

<td>

<code class="funcdef">uint <strong class="fsfunc">imageAtomicExchange</strong>(</code>

</td>

<td>gimage2DArray <var class="pdparam">image</var>, </td>

</tr>

<tr>

<td> </td>

<td>ivec3 <var class="pdparam">P</var>, </td>

</tr>

<tr>

<td> </td>

<td>uint <var class="pdparam">data</var><code>)</code>;</td>

</tr>

</table>

<div class="funcprototype-spacer"> </div>

<table style="border: 0; cellspacing: 0; cellpadding: 0;" class="funcprototype-table">

<tr>

<td>

<code class="funcdef">uint <strong class="fsfunc">imageAtomicExchange</strong>(</code>

</td>

<td>gimageCubeArray <var class="pdparam">image</var>, </td>

</tr>

<tr>

<td> </td>

<td>ivec3 <var class="pdparam">P</var>, </td>

</tr>

<tr>

<td> </td>

<td>uint <var class="pdparam">data</var><code>)</code>;</td>

</tr>

</table>

<div class="funcprototype-spacer"> </div>

<table style="border: 0; cellspacing: 0; cellpadding: 0;" class="funcprototype-table">

<tr>

<td>

<code class="funcdef">uint <strong class="fsfunc">imageAtomicExchange</strong>(</code>

</td>

<td>gimage2DMS <var class="pdparam">image</var>, </td>

</tr>

<tr>

<td> </td>

<td>ivec2 <var class="pdparam">P</var>, </td>

</tr>

<tr>

<td> </td>

<td>int <var class="pdparam">sample</var>, </td>

</tr>

<tr>

<td> </td>

<td>uint <var class="pdparam">data</var><code>)</code>;</td>

</tr>

</table>

<div class="funcprototype-spacer"> </div>

<table style="border: 0; cellspacing: 0; cellpadding: 0;" class="funcprototype-table">

<tr>

<td>

<code class="funcdef">uint <strong class="fsfunc">imageAtomicExchange</strong>(</code>

</td>

<td>gimage2DMSArray <var class="pdparam">image</var>, </td>

</tr>

<tr>

<td> </td>

<td>ivec3 <var class="pdparam">P</var>, </td>

</tr>

<tr>

<td> </td>

<td>int <var class="pdparam">sample</var>, </td>

</tr>

<tr>

<td> </td>

<td>uint <var class="pdparam">data</var><code>)</code>;</td>

</tr>

</table>

<div class="funcprototype-spacer"> </div>

<table style="border: 0; cellspacing: 0; cellpadding: 0;" class="funcprototype-table">

<tr>

<td>

<code class="funcdef">int <strong class="fsfunc">imageAtomicExchange</strong>(</code>

</td>

<td>gimage1D <var class="pdparam">image</var>, </td>

</tr>

<tr>

<td> </td>

<td>int <var class="pdparam">P</var>, </td>

</tr>

<tr>

<td> </td>

<td>int <var class="pdparam">data</var><code>)</code>;</td>

</tr>

</table>

<div class="funcprototype-spacer"> </div>

<table style="border: 0; cellspacing: 0; cellpadding: 0;" class="funcprototype-table">

<tr>

<td>

<code class="funcdef">int <strong class="fsfunc">imageAtomicExchange</strong>(</code>

</td>

<td>gimage2D <var class="pdparam">image</var>, </td>

</tr>

<tr>

<td> </td>

<td>ivec2 <var class="pdparam">P</var>, </td>

</tr>

<tr>

<td> </td>

<td>int <var class="pdparam">data</var><code>)</code>;</td>

</tr>

</table>

<div class="funcprototype-spacer"> </div>

<table style="border: 0; cellspacing: 0; cellpadding: 0;" class="funcprototype-table">

<tr>

<td>

<code class="funcdef">int <strong class="fsfunc">imageAtomicExchange</strong>(</code>

</td>

<td>gimage3D <var class="pdparam">image</var>, </td>

</tr>

<tr>

<td> </td>

<td>ivec3 <var class="pdparam">P</var>, </td>

</tr>

<tr>

<td> </td>

<td>int <var class="pdparam">data</var><code>)</code>;</td>

</tr>

</table>

<div class="funcprototype-spacer"> </div>

<table style="border: 0; cellspacing: 0; cellpadding: 0;" class="funcprototype-table">

<tr>

<td>

<code class="funcdef">int <strong class="fsfunc">imageAtomicExchange</strong>(</code>

</td>

<td>gimage2DRect <var class="pdparam">image</var>, </td>

</tr>

<tr>

<td> </td>

<td>ivec2 <var class="pdparam">P</var>, </td>

</tr>

<tr>

<td> </td>

<td>int <var class="pdparam">data</var><code>)</code>;</td>

</tr>

</table>

<div class="funcprototype-spacer"> </div>

<table style="border: 0; cellspacing: 0; cellpadding: 0;" class="funcprototype-table">

<tr>

<td>

<code class="funcdef">int <strong class="fsfunc">imageAtomicExchange</strong>(</code>

</td>

<td>gimageCube <var class="pdparam">image</var>, </td>

</tr>

<tr>

<td> </td>

<td>ivec3 <var class="pdparam">P</var>, </td>

</tr>

<tr>

<td> </td>

<td>int <var class="pdparam">data</var><code>)</code>;</td>

</tr>

</table>

<div class="funcprototype-spacer"> </div>

<table style="border: 0; cellspacing: 0; cellpadding: 0;" class="funcprototype-table">

<tr>

<td>

<code class="funcdef">int <strong class="fsfunc">imageAtomicExchange</strong>(</code>

</td>

<td>gbufferImage <var class="pdparam">image</var>, </td>

</tr>

<tr>

<td> </td>

<td>int <var class="pdparam">P</var>, </td>

</tr>

<tr>

<td> </td>

<td>int <var class="pdparam">data</var><code>)</code>;</td>

</tr>

</table>

<div class="funcprototype-spacer"> </div>

<table style="border: 0; cellspacing: 0; cellpadding: 0;" class="funcprototype-table">

<tr>

<td>

<code class="funcdef">int <strong class="fsfunc">imageAtomicExchange</strong>(</code>

</td>

<td>gimage1DArray <var class="pdparam">image</var>, </td>

</tr>

<tr>

<td> </td>

<td>ivec2 <var class="pdparam">P</var>, </td>

</tr>

<tr>

<td> </td>

<td>int <var class="pdparam">data</var><code>)</code>;</td>

</tr>

</table>

<div class="funcprototype-spacer"> </div>

<table style="border: 0; cellspacing: 0; cellpadding: 0;" class="funcprototype-table">

<tr>

<td>

<code class="funcdef">int <strong class="fsfunc">imageAtomicExchange</strong>(</code>

</td>

<td>gimage2DArray <var class="pdparam">image</var>, </td>

</tr>

<tr>

<td> </td>

<td>ivec3 <var class="pdparam">P</var>, </td>

</tr>

<tr>

<td> </td>

<td>int <var class="pdparam">data</var><code>)</code>;</td>

</tr>

</table>

<div class="funcprototype-spacer"> </div>

<table style="border: 0; cellspacing: 0; cellpadding: 0;" class="funcprototype-table">

<tr>

<td>

<code class="funcdef">int <strong class="fsfunc">imageAtomicExchange</strong>(</code>

</td>

<td>gimageCubeArray <var class="pdparam">image</var>, </td>

</tr>

<tr>

<td> </td>

<td>ivec3 <var class="pdparam">P</var>, </td>

</tr>

<tr>

<td> </td>

<td>int <var class="pdparam">data</var><code>)</code>;</td>

</tr>

</table>

<div class="funcprototype-spacer"> </div>

<table style="border: 0; cellspacing: 0; cellpadding: 0;" class="funcprototype-table">

<tr>

<td>

<code class="funcdef">int <strong class="fsfunc">imageAtomicExchange</strong>(</code>

</td>

<td>gimage2DMS <var class="pdparam">image</var>, </td>

</tr>

<tr>

<td> </td>

<td>ivec2 <var class="pdparam">P</var>, </td>

</tr>

<tr>

<td> </td>

<td>int <var class="pdparam">sample</var>, </td>

</tr>

<tr>

<td> </td>

<td>int <var class="pdparam">data</var><code>)</code>;</td>

</tr>

</table>

<div class="funcprototype-spacer"> </div>

<table style="border: 0; cellspacing: 0; cellpadding: 0;" class="funcprototype-table">

<tr>

<td>

<code class="funcdef">int <strong class="fsfunc">imageAtomicExchange</strong>(</code>

</td>

<td>gimage2DMSArray <var class="pdparam">image</var>, </td>

</tr>

<tr>

<td> </td>

<td>ivec3 <var class="pdparam">P</var>, </td>

</tr>

<tr>

<td> </td>

<td>int <var class="pdparam">sample</var>, </td>

</tr>

<tr>

<td> </td>

<td>int <var class="pdparam">data</var><code>)</code>;</td>

</tr>

</table>

<div class="funcprototype-spacer"> </div>

<table style="border: 0; cellspacing: 0; cellpadding: 0;" class="funcprototype-table">

<tr>

<td>

<code class="funcdef">int <strong class="fsfunc">imageAtomicExchange</strong>(</code>

</td>

<td>gimage1D <var class="pdparam">image</var>, </td>

</tr>

<tr>

<td> </td>

<td>int <var class="pdparam">P</var>, </td>

</tr>

<tr>

<td> </td>

<td>float <var class="pdparam">data</var><code>)</code>;</td>

</tr>

</table>

<div class="funcprototype-spacer"> </div>

<table style="border: 0; cellspacing: 0; cellpadding: 0;" class="funcprototype-table">

<tr>

<td>

<code class="funcdef">int <strong class="fsfunc">imageAtomicExchange</strong>(</code>

</td>

<td>gimage2D <var class="pdparam">image</var>, </td>

</tr>

<tr>

<td> </td>

<td>ivec2 <var class="pdparam">P</var>, </td>

</tr>

<tr>

<td> </td>

<td>float <var class="pdparam">data</var><code>)</code>;</td>

</tr>

</table>

<div class="funcprototype-spacer"> </div>

<table style="border: 0; cellspacing: 0; cellpadding: 0;" class="funcprototype-table">

<tr>

<td>

<code class="funcdef">int <strong class="fsfunc">imageAtomicExchange</strong>(</code>

</td>

<td>gimage3D <var class="pdparam">image</var>, </td>

</tr>

<tr>

<td> </td>

<td>ivec3 <var class="pdparam">P</var>, </td>

</tr>

<tr>

<td> </td>

<td>float <var class="pdparam">data</var><code>)</code>;</td>

</tr>

</table>

<div class="funcprototype-spacer"> </div>

<table style="border: 0; cellspacing: 0; cellpadding: 0;" class="funcprototype-table">

<tr>

<td>

<code class="funcdef">int <strong class="fsfunc">imageAtomicExchange</strong>(</code>

</td>

<td>gimage2DRect <var class="pdparam">image</var>, </td>

</tr>

<tr>

<td> </td>

<td>ivec2 <var class="pdparam">P</var>, </td>

</tr>

<tr>

<td> </td>

<td>float <var class="pdparam">data</var><code>)</code>;</td>

</tr>

</table>

<div class="funcprototype-spacer"> </div>

<table style="border: 0; cellspacing: 0; cellpadding: 0;" class="funcprototype-table">

<tr>

<td>

<code class="funcdef">int <strong class="fsfunc">imageAtomicExchange</strong>(</code>

</td>

<td>gimageCube <var class="pdparam">image</var>, </td>

</tr>

<tr>

<td> </td>

<td>ivec3 <var class="pdparam">P</var>, </td>

</tr>

<tr>

<td> </td>

<td>float <var class="pdparam">data</var><code>)</code>;</td>

</tr>

</table>

<div class="funcprototype-spacer"> </div>

<table style="border: 0; cellspacing: 0; cellpadding: 0;" class="funcprototype-table">

<tr>

<td>

<code class="funcdef">int <strong class="fsfunc">imageAtomicExchange</strong>(</code>

</td>

<td>gbufferImage <var class="pdparam">image</var>, </td>

</tr>

<tr>

<td> </td>

<td>int <var class="pdparam">P</var>, </td>

</tr>

<tr>

<td> </td>

<td>float <var class="pdparam">data</var><code>)</code>;</td>

</tr>

</table>

<div class="funcprototype-spacer"> </div>

<table style="border: 0; cellspacing: 0; cellpadding: 0;" class="funcprototype-table">

<tr>

<td>

<code class="funcdef">int <strong class="fsfunc">imageAtomicExchange</strong>(</code>

</td>

<td>gimage1DArray <var class="pdparam">image</var>, </td>

</tr>

<tr>

<td> </td>

<td>ivec2 <var class="pdparam">P</var>, </td>

</tr>

<tr>

<td> </td>

<td>float <var class="pdparam">data</var><code>)</code>;</td>

</tr>

</table>

<div class="funcprototype-spacer"> </div>

<table style="border: 0; cellspacing: 0; cellpadding: 0;" class="funcprototype-table">

<tr>

<td>

<code class="funcdef">int <strong class="fsfunc">imageAtomicExchange</strong>(</code>

</td>

<td>gimage2DArray <var class="pdparam">image</var>, </td>

</tr>

<tr>

<td> </td>

<td>ivec3 <var class="pdparam">P</var>, </td>

</tr>

<tr>

<td> </td>

<td>float <var class="pdparam">data</var><code>)</code>;</td>

</tr>

</table>

<div class="funcprototype-spacer"> </div>

<table style="border: 0; cellspacing: 0; cellpadding: 0;" class="funcprototype-table">

<tr>

<td>

<code class="funcdef">int <strong class="fsfunc">imageAtomicExchange</strong>(</code>

</td>

<td>gimageCubeArray <var class="pdparam">image</var>, </td>

</tr>

<tr>

<td> </td>

<td>ivec3 <var class="pdparam">P</var>, </td>

</tr>

<tr>

<td> </td>

<td>float <var class="pdparam">data</var><code>)</code>;</td>

</tr>

</table>

<div class="funcprototype-spacer"> </div>

<table style="border: 0; cellspacing: 0; cellpadding: 0;" class="funcprototype-table">

<tr>

<td>

<code class="funcdef">int <strong class="fsfunc">imageAtomicExchange</strong>(</code>

</td>

<td>gimage2DMS <var class="pdparam">image</var>, </td>

</tr>

<tr>

<td> </td>

<td>ivec2 <var class="pdparam">P</var>, </td>

</tr>

<tr>

<td> </td>

<td>int <var class="pdparam">sample</var>, </td>

</tr>

<tr>

<td> </td>

<td>float <var class="pdparam">data</var><code>)</code>;</td>

</tr>

</table>

<div class="funcprototype-spacer"> </div>

<table style="border: 0; cellspacing: 0; cellpadding: 0;" class="funcprototype-table">

<tr>

<td>

<code class="funcdef">int <strong class="fsfunc">imageAtomicExchange</strong>(</code>

</td>

<td>gimage2DMSArray <var class="pdparam">image</var>, </td>

</tr>

<tr>

<td> </td>

<td>ivec3 <var class="pdparam">P</var>, </td>

</tr>

<tr>

<td> </td>

<td>int <var class="pdparam">sample</var>, </td>

</tr>

<tr>

<td> </td>

<td>float <var class="pdparam">data</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>image</code>

</em>

</span>

</dt>

<dd>

<p>

Specify the image unit into which to store

<em class="parameter"><code>data</code></em>.

</p>

</dd>

<dt>

<span class="term">

<em class="parameter">

<code>P</code>

</em>

</span>

</dt>

<dd>

<p>

Specify the coordinate at which to store the data.

</p>

</dd>

<dt>

<span class="term">

<em class="parameter">

<code>sample</code>

</em>

</span>

</dt>

<dd>

<p>

When present, specifies the sample within the image to

store into.

</p>

</dd>

<dt>

<span class="term">

<em class="parameter">

<code>data</code>

</em>

</span>

</dt>

<dd>

<p>

Specifies the data to exchange with that stored in the

image.

</p>

</dd>

</dl>

</div>

</div>

<div class="refsect1" id="description">

<h2>Description</h2>

<p>

<code class="function">imageAtomicExchange</code> atomically stores the

value of <em class="parameter"><code>data</code></em> into the texel at

coordinate <em class="parameter"><code>P</code></em> and

<em class="parameter"><code>sample</code></em> in the image bound to unit

<em class="parameter"><code>image</code></em>, and returns the original value of

the texel.

</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 Shading Language Version</strong></span>

</th>

</tr>

<tr>

<th style="text-align: left; border-right: 2px solid ; border-bottom: 2px solid ; ">

<span class="bold"><strong>Function Name</strong></span>

</th>

<th style="text-align: center; border-right: 2px solid ; border-bottom: 2px solid ; ">

<span class="bold"><strong>1.10</strong></span>

</th>

<th style="text-align: center; border-right: 2px solid ; border-bottom: 2px solid ; ">

<span class="bold"><strong>1.20</strong></span>

</th>

<th style="text-align: center; border-right: 2px solid ; border-bottom: 2px solid ; ">

<span class="bold"><strong>1.30</strong></span>

</th>

<th style="text-align: center; border-right: 2px solid ; border-bottom: 2px solid ; ">

<span class="bold"><strong>1.40</strong></span>

</th>

<th style="text-align: center; border-right: 2px solid ; border-bottom: 2px solid ; ">

<span class="bold"><strong>1.50</strong></span>

</th>

<th style="text-align: center; border-right: 2px solid ; border-bottom: 2px solid ; ">

<span class="bold"><strong>3.30</strong></span>

</th>

<th style="text-align: center; border-right: 2px solid ; border-bottom: 2px solid ; ">

<span class="bold"><strong>4.00</strong></span>

</th>

<th style="text-align: center; border-right: 2px solid ; border-bottom: 2px solid ; ">

<span class="bold"><strong>4.10</strong></span>

</th>

<th style="text-align: center; border-right: 2px solid ; border-bottom: 2px solid ; ">

<span class="bold"><strong>4.20</strong></span>

</th>

<th style="text-align: center; border-right: 2px solid ; border-bottom: 2px solid ; ">

<span class="bold"><strong>4.30</strong></span>