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354 lines
15 KiB
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<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
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<head>
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<meta http-equiv="Content-Type" content="text/xhtml;charset=UTF-8"/>
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<title>GLM_GTX_bit: Extended bitwise operations</title>
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<li><a href="index.html"><span>Main Page</span></a></li>
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<div class="header">
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<div class="summary">
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<a href="#func-members">Functions</a> </div>
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<div class="headertitle">
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<div class="title">GLM_GTX_bit: Extended bitwise operations</div> </div>
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<div class="ingroups"><a class="el" href="a00248.html">GTX Extensions (Experimental)</a></div></div>
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<div class="contents">
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<p>Allow to perform bit operations on integer values.
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<a href="#details">More...</a></p>
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<table class="memberdecls">
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<tr><td colspan="2"><h2><a name="func-members"></a>
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Functions</h2></td></tr>
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<tr><td class="memTemplParams" colspan="2">template<typename genType > </td></tr>
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<tr><td class="memTemplItemLeft" align="right" valign="top">genType </td><td class="memTemplItemRight" valign="bottom"><a class="el" href="a00250.html#ga2f145f264c334caba22e6949e015d208">bitRevert</a> (genType const &value)</td></tr>
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<tr><td class="memTemplParams" colspan="2">template<typename genType > </td></tr>
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<tr><td class="memTemplItemLeft" align="right" valign="top">genType </td><td class="memTemplItemRight" valign="bottom"><a class="el" href="a00250.html#gaa8de15434b73178fd1d2ea7ee16b59bd">bitRotateLeft</a> (genType const &In, std::size_t Shift)</td></tr>
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<tr><td class="memTemplParams" colspan="2">template<typename genType > </td></tr>
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<tr><td class="memTemplItemLeft" align="right" valign="top">genType </td><td class="memTemplItemRight" valign="bottom"><a class="el" href="a00250.html#gaeec0d4179d7a092056e2201fff385ef6">bitRotateRight</a> (genType const &In, std::size_t Shift)</td></tr>
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<tr><td class="memTemplParams" colspan="2">template<typename genIUType , typename sizeType > </td></tr>
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<tr><td class="memTemplItemLeft" align="right" valign="top">genIUType </td><td class="memTemplItemRight" valign="bottom"><a class="el" href="a00250.html#ga244734bb54e4648970c38b032258035a">extractField</a> (genIUType const &v, sizeType const &first, sizeType const &count)</td></tr>
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<tr><td class="memTemplParams" colspan="2">template<typename genType > </td></tr>
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<tr><td class="memTemplItemLeft" align="right" valign="top">int </td><td class="memTemplItemRight" valign="bottom"><a class="el" href="a00250.html#ga55e17a1e9347ca10d206f62ffe294608">highestBit</a> (genType const &value)</td></tr>
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<tr><td class="memTemplParams" colspan="2">template<typename genType > </td></tr>
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<tr><td class="memTemplItemLeft" align="right" valign="top">genType </td><td class="memTemplItemRight" valign="bottom"><a class="el" href="a00250.html#ga2e2ba1398ef471e40e6a07cbab9a75fe">highestBitValue</a> (genType const &value)</td></tr>
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<tr><td class="memTemplParams" colspan="2">template<typename genType > </td></tr>
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<tr><td class="memTemplItemLeft" align="right" valign="top">bool </td><td class="memTemplItemRight" valign="bottom"><a class="el" href="a00250.html#gadddfcaa01efe60218e52323707331415">isPowerOfTwo</a> (genType const &value)</td></tr>
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<tr><td class="memTemplParams" colspan="2">template<typename genType > </td></tr>
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<tr><td class="memTemplItemLeft" align="right" valign="top">int </td><td class="memTemplItemRight" valign="bottom"><a class="el" href="a00250.html#gace8029d9e9090f2aaa0248e320b3f24c">lowestBit</a> (genType const &value)</td></tr>
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<tr><td class="memTemplParams" colspan="2">template<typename genIType > </td></tr>
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<tr><td class="memTemplItemLeft" align="right" valign="top">genIType </td><td class="memTemplItemRight" valign="bottom"><a class="el" href="a00250.html#ga31dbf05c851060984e107afb39dde5fe">mask</a> (genIType const &count)</td></tr>
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<tr><td class="memTemplParams" colspan="2">template<typename genType > </td></tr>
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<tr><td class="memTemplItemLeft" align="right" valign="top">genType </td><td class="memTemplItemRight" valign="bottom"><a class="el" href="a00250.html#ga0a1683dffc58011a161c0b3cb867c93c">powerOfTwoAbove</a> (genType const &value)</td></tr>
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<tr><td class="memTemplParams" colspan="2">template<typename genType > </td></tr>
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<tr><td class="memTemplItemLeft" align="right" valign="top">genType </td><td class="memTemplItemRight" valign="bottom"><a class="el" href="a00250.html#ga9adeb3bc22e67933665600e0dc2e1f8d">powerOfTwoBelow</a> (genType const &value)</td></tr>
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<tr><td class="memTemplParams" colspan="2">template<typename genType > </td></tr>
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<tr><td class="memTemplItemLeft" align="right" valign="top">genType </td><td class="memTemplItemRight" valign="bottom"><a class="el" href="a00250.html#ga12d57451c94950bafe2e1fb57346f082">powerOfTwoNearest</a> (genType const &value)</td></tr>
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</table>
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<hr/><a name="details" id="details"></a><h2>Detailed Description</h2>
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<p>Allow to perform bit operations on integer values. </p>
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<p><<a class="el" href="a00027_source.html">glm/gtx/bit.hpp</a>> need to be included to use these functionalities. </p>
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<hr/><h2>Function Documentation</h2>
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<a class="anchor" id="ga2f145f264c334caba22e6949e015d208"></a><!-- doxytag: member="glm::gtx::bit::bitRevert" ref="ga2f145f264c334caba22e6949e015d208" args="(genType const &value)" -->
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<div class="memitem">
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<div class="memproto">
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<table class="memname">
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<td class="memname">genType glm::gtx::bit::bitRevert </td>
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<td>(</td>
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<td class="paramtype">genType const & </td>
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<td class="paramname"><em>value</em></td><td>)</td>
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<td></td>
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</tr>
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</table>
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</div>
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<div class="memdoc">
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<p>Revert all bits of any integer based type. </p>
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<p>From GLM_GTX_bit extension. </p>
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</div>
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</div>
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<a class="anchor" id="gaa8de15434b73178fd1d2ea7ee16b59bd"></a><!-- doxytag: member="glm::gtx::bit::bitRotateLeft" ref="gaa8de15434b73178fd1d2ea7ee16b59bd" args="(genType const &In, std::size_t Shift)" -->
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<div class="memitem">
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<div class="memproto">
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<table class="memname">
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<tr>
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<td class="memname">genType glm::gtx::bit::bitRotateLeft </td>
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<td>(</td>
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<td class="paramtype">genType const & </td>
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<td class="paramname"><em>In</em>, </td>
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</tr>
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<tr>
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<td class="paramkey"></td>
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<td></td>
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<td class="paramtype">std::size_t </td>
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<td class="paramname"><em>Shift</em> </td>
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</tr>
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<tr>
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<td></td>
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<td>)</td>
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<td></td><td></td>
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</tr>
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</table>
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</div>
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<div class="memdoc">
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<p>Rotate all bits to the left. </p>
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<p>From GLM_GTX_bit extension. </p>
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</div>
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</div>
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<a class="anchor" id="gaeec0d4179d7a092056e2201fff385ef6"></a><!-- doxytag: member="glm::gtx::bit::bitRotateRight" ref="gaeec0d4179d7a092056e2201fff385ef6" args="(genType const &In, std::size_t Shift)" -->
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<div class="memitem">
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<div class="memproto">
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<table class="memname">
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<tr>
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<td class="memname">genType glm::gtx::bit::bitRotateRight </td>
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<td>(</td>
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<td class="paramtype">genType const & </td>
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<td class="paramname"><em>In</em>, </td>
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</tr>
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<tr>
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<td class="paramkey"></td>
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<td></td>
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<td class="paramtype">std::size_t </td>
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<td class="paramname"><em>Shift</em> </td>
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</tr>
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<tr>
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<td></td>
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<td>)</td>
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<td></td><td></td>
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</tr>
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</table>
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</div>
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<div class="memdoc">
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<p>Rotate all bits to the right. </p>
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<p>From GLM_GTX_bit extension. </p>
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</div>
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</div>
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<a class="anchor" id="ga244734bb54e4648970c38b032258035a"></a><!-- doxytag: member="glm::gtx::bit::extractField" ref="ga244734bb54e4648970c38b032258035a" args="(genIUType const &v, sizeType const &first, sizeType const &count)" -->
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<div class="memitem">
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<div class="memproto">
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<table class="memname">
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<tr>
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<td class="memname">genIUType glm::gtx::bit::extractField </td>
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<td>(</td>
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<td class="paramtype">genIUType const & </td>
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<td class="paramname"><em>v</em>, </td>
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</tr>
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<tr>
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<td class="paramkey"></td>
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<td></td>
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<td class="paramtype">sizeType const & </td>
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<td class="paramname"><em>first</em>, </td>
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</tr>
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<tr>
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<td class="paramkey"></td>
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<td></td>
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<td class="paramtype">sizeType const & </td>
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<td class="paramname"><em>count</em> </td>
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</tr>
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<tr>
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<td></td>
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<td>)</td>
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<td></td><td></td>
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</tr>
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</table>
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</div>
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<div class="memdoc">
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<p>Component wise extraction of bit fields. </p>
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<p>genType and genIType could be a scalar or a vector. From GLM_GTX_bit extension. </p>
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</div>
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</div>
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<a class="anchor" id="ga55e17a1e9347ca10d206f62ffe294608"></a><!-- doxytag: member="glm::gtx::bit::highestBit" ref="ga55e17a1e9347ca10d206f62ffe294608" args="(genType const &value)" -->
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<div class="memitem">
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<div class="memproto">
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<table class="memname">
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<tr>
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<td class="memname">int glm::gtx::bit::highestBit </td>
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<td>(</td>
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<td class="paramtype">genType const & </td>
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<td class="paramname"><em>value</em></td><td>)</td>
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<td></td>
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</tr>
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</table>
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</div>
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<div class="memdoc">
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<p>Find the highest bit set to 1 in a integer variable. </p>
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<p>From GLM_GTX_bit extension. </p>
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</div>
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</div>
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<a class="anchor" id="ga2e2ba1398ef471e40e6a07cbab9a75fe"></a><!-- doxytag: member="glm::gtx::bit::highestBitValue" ref="ga2e2ba1398ef471e40e6a07cbab9a75fe" args="(genType const &value)" -->
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<div class="memitem">
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<div class="memproto">
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<table class="memname">
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<tr>
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<td class="memname">genType glm::gtx::bit::highestBitValue </td>
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<td>(</td>
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<td class="paramtype">genType const & </td>
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<td class="paramname"><em>value</em></td><td>)</td>
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<td></td>
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</tr>
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</table>
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</div>
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<div class="memdoc">
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<p>Find the highest bit set to 1 in a integer variable and return its value. </p>
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<p>From GLM_GTX_bit extension. </p>
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</div>
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</div>
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<a class="anchor" id="gadddfcaa01efe60218e52323707331415"></a><!-- doxytag: member="glm::gtx::bit::isPowerOfTwo" ref="gadddfcaa01efe60218e52323707331415" args="(genType const &value)" -->
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<div class="memitem">
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<div class="memproto">
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<table class="memname">
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<tr>
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<td class="memname">bool glm::gtx::bit::isPowerOfTwo </td>
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<td>(</td>
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<td class="paramtype">genType const & </td>
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<td class="paramname"><em>value</em></td><td>)</td>
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<td></td>
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</tr>
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</table>
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</div>
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<div class="memdoc">
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<p>Return true if the value is a power of two number. </p>
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<p>From GLM_GTX_bit extension. </p>
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</div>
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</div>
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<a class="anchor" id="gace8029d9e9090f2aaa0248e320b3f24c"></a><!-- doxytag: member="glm::gtx::bit::lowestBit" ref="gace8029d9e9090f2aaa0248e320b3f24c" args="(genType const &value)" -->
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<div class="memitem">
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<table class="memname">
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<tr>
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<td class="memname">int glm::gtx::bit::lowestBit </td>
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<td>(</td>
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<td class="paramtype">genType const & </td>
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<td class="paramname"><em>value</em></td><td>)</td>
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<td></td>
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</tr>
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</table>
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</div>
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<div class="memdoc">
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<p>Find the lowest bit set to 1 in a integer variable. </p>
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<p>From GLM_GTX_bit extension. </p>
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</div>
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</div>
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<a class="anchor" id="ga31dbf05c851060984e107afb39dde5fe"></a><!-- doxytag: member="glm::gtx::bit::mask" ref="ga31dbf05c851060984e107afb39dde5fe" args="(genIType const &count)" -->
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<div class="memitem">
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<div class="memproto">
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<table class="memname">
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<td class="memname">genIType glm::gtx::bit::mask </td>
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<td>(</td>
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<td class="paramtype">genIType const & </td>
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<td class="paramname"><em>count</em></td><td>)</td>
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<td></td>
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</tr>
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</table>
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</div>
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<div class="memdoc">
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<p>Build a mask of 'count' bits From GLM_GTX_bit extension. </p>
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</div>
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</div>
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<a class="anchor" id="ga0a1683dffc58011a161c0b3cb867c93c"></a><!-- doxytag: member="glm::gtx::bit::powerOfTwoAbove" ref="ga0a1683dffc58011a161c0b3cb867c93c" args="(genType const &value)" -->
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<div class="memitem">
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<tr>
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<td class="memname">genType glm::gtx::bit::powerOfTwoAbove </td>
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<td>(</td>
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<td class="paramtype">genType const & </td>
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<td class="paramname"><em>value</em></td><td>)</td>
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<td></td>
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</tr>
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</table>
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</div>
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<div class="memdoc">
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<p>Return the power of two number which value is just higher the input value. </p>
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<p>From GLM_GTX_bit extension. </p>
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</div>
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</div>
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<a class="anchor" id="ga9adeb3bc22e67933665600e0dc2e1f8d"></a><!-- doxytag: member="glm::gtx::bit::powerOfTwoBelow" ref="ga9adeb3bc22e67933665600e0dc2e1f8d" args="(genType const &value)" -->
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<div class="memitem">
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<table class="memname">
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<tr>
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<td class="memname">genType glm::gtx::bit::powerOfTwoBelow </td>
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<td>(</td>
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<td class="paramtype">genType const & </td>
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<td class="paramname"><em>value</em></td><td>)</td>
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<td></td>
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</tr>
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</table>
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</div>
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<div class="memdoc">
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<p>Return the power of two number which value is just lower the input value. </p>
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||
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<p>From GLM_GTX_bit extension. </p>
|
||
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||
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</div>
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</div>
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<a class="anchor" id="ga12d57451c94950bafe2e1fb57346f082"></a><!-- doxytag: member="glm::gtx::bit::powerOfTwoNearest" ref="ga12d57451c94950bafe2e1fb57346f082" args="(genType const &value)" -->
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<div class="memitem">
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<div class="memproto">
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<table class="memname">
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<tr>
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||
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<td class="memname">genType glm::gtx::bit::powerOfTwoNearest </td>
|
||
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<td>(</td>
|
||
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<td class="paramtype">genType const & </td>
|
||
|
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<td class="paramname"><em>value</em></td><td>)</td>
|
||
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|
<td></td>
|
||
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</tr>
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||
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</table>
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||
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</div>
|
||
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<div class="memdoc">
|
||
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|
||
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<p>Return the power of two number which value is the closet to the input value. </p>
|
||
|
|
<p>From GLM_GTX_bit extension. </p>
|
||
|
|
|
||
|
|
</div>
|
||
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</div>
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||
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</div>
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<hr class="footer"/><address class="footer"><small>Generated by 
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<a href="http://www.doxygen.org/index.html">
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<img class="footer" src="doxygen.png" alt="doxygen"/></a> 1.7.4 </small></address>
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</body>
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</html>
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