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"text/xsl" href=
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pref=
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renderer=
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"Content-Type" content=
"text/html; charset=UTF-8" /><link rel=
"stylesheet" type=
"text/css" href=
"opengl-man.css" /><title>bitfieldInsert - 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=
"bitfieldInsert"></a><div class=
"titlepage"></div><div class=
"refnamediv"><h2>Name
</h2><p>bitfieldInsert — insert a range of bits into an integer
</p></div><div class=
"refsynopsisdiv"><h2>Declaration
</h2><div class=
"funcsynopsis"><table border=
"0" summary=
"Function synopsis" cellspacing=
"0" cellpadding=
"0" style=
"padding-bottom: 1em"><tr><td><code class=
"funcdef">genIType
<b class=
"fsfunc">bitfieldInsert
</b>(
</code></td><td>genIType
</td><td><var class=
"pdparam">base
</var>,
</td></tr><tr><td> </td><td>genIType
</td><td><var class=
"pdparam">insert
</var>,
</td></tr><tr><td> </td><td>int
</td><td><var class=
"pdparam">offset
</var>,
</td></tr><tr><td> </td><td>int
</td><td><var class=
"pdparam">bits
</var><code>)
</code>;
</td></tr></table><table border=
"0" summary=
"Function synopsis" cellspacing=
"0" cellpadding=
"0"><tr><td><code class=
"funcdef">genUType
<b class=
"fsfunc">bitfieldInsert
</b>(
</code></td><td>genUType
</td><td><var class=
"pdparam">base
</var>,
</td></tr><tr><td> </td><td>genUType
</td><td><var class=
"pdparam">insert
</var>,
</td></tr><tr><td> </td><td>int
</td><td><var class=
"pdparam">offset
</var>,
</td></tr><tr><td> </td><td>int
</td><td><var class=
"pdparam">bits
</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>base
</code></em></span></dt><dd><p>
5 Specifies the integer into which to insert
<em class=
"parameter"><code>insert
</code></em>.
6 </p></dd><dt><span class=
"term"><em class=
"parameter"><code>insert
</code></em></span></dt><dd><p>
7 Specifies the the value of the bits to insert.
8 </p></dd><dt><span class=
"term"><em class=
"parameter"><code>offset
</code></em></span></dt><dd><p>
9 Specifies the index of the first bit to insert.
10 </p></dd><dt><span class=
"term"><em class=
"parameter"><code>bits
</code></em></span></dt><dd><p>
11 Specifies the number of bits to insert.
12 </p></dd></dl></div></div><div class=
"refsect1" lang=
"en" xml:
lang=
"en"><a id=
"description"></a><h2>Description
</h2><p>
13 <code class=
"function">bitfieldInsert
</code> inserts the
<em class=
"parameter"><code>bits
</code></em> least significant bits of
<em class=
"parameter"><code>insert
</code></em>
14 into
<em class=
"parameter"><code>base
</code></em> at offset
<em class=
"parameter"><code>offset
</code></em>. The returned value will have bits
15 [
<em class=
"parameter"><code>offset
</code></em>,
<em class=
"parameter"><code>offset
</code></em> +
<em class=
"parameter"><code>bits
</code></em> +
1] taken from [
0,
<em class=
"parameter"><code>bits
</code></em> -
1]
16 of
<em class=
"parameter"><code>insert
</code></em> and all other bits taken directly from the corresponding bits of
<em class=
"parameter"><code>base
</code></em>. If
17 <em class=
"parameter"><code>bits
</code></em> is zero, the result will simply be the original value of
<em class=
"parameter"><code>base
</code></em>. The result will
18 be undefined if
<em class=
"parameter"><code>offset
</code></em> or
<em class=
"parameter"><code>bits
</code></em> is negative, or if the sum of
<em class=
"parameter"><code>offset
</code></em>
19 and
<em class=
"parameter"><code>bits
</code></em> is greater than the number of bits used to store the operand.
20 </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">bitfieldInsert
</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><th align=
"center"><span class=
"emphasis"><em>Y
</em></span></th><th align=
"center"><span class=
"emphasis"><em>Y
</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>
21 <a href=
"bitfieldExtract.xml"><span class=
"citerefentry"><span class=
"refentrytitle">bitfieldExtract
</span></span></a>
22 </p></div><div class=
"refsect1" lang=
"en" xml:
lang=
"en"><a id=
"Copyright"></a><h2>Copyright
</h2><p>
23 Copyright
<span class=
"trademark"></span>©
2011 Khronos Group.
24 This material may be distributed subject to the terms and conditions set forth in
25 the Open Publication License, v
1.0,
8 June
1999.
26 <a href=
"http://opencontent.org/openpub/" target=
"_top">http://opencontent.org/openpub/
</a>.
27 </p></div></div></body></html>