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<h1>gr_fir_fsf_simd Class Reference</h1><!-- doxytag: class="gr_fir_fsf_simd" --><!-- doxytag: inherits="gr_fir_fsf_generic" -->
<p>common base class for SIMD versions of <a class="el" href="classgr__fir__fsf.html" title="Abstract class for FIR with float input, short output and float tapsThis is the abstract...">gr_fir_fsf</a>This base class handles alignment issues common to SSE and 3DNOW subclasses.
<a href="#_details">More...</a></p>
<p><code>#include <<a class="el" href="gr__fir__fsf__simd_8h_source.html">gr_fir_fsf_simd.h</a>></code></p>
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Inheritance diagram for gr_fir_fsf_simd:</div>
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<area shape="rect" id="node7" href="classgr__fir__fsf__3dnow.html" title="3DNow! version of gr_fir_fsf" alt="" coords="5,237,123,267"/><area shape="rect" id="node9" href="classgr__fir__fsf__sse.html" title="SSE version of gr_fir_fsf." alt="" coords="147,237,248,267"/><area shape="rect" id="node2" href="classgr__fir__fsf__generic.html" title="Concrete class for generic implementation of FIR with float input, short output and..." alt="" coords="69,83,192,112"/><area shape="rect" id="node4" href="classgr__fir__fsf.html" title="Abstract class for FIR with float input, short output and float tapsThis is the abstract..." alt="" coords="95,5,167,35"/></map>
<center><span class="legend">[<a target="top" href="graph_legend.html">legend</a>]</span></center></div>
<p><a href="classgr__fir__fsf__simd-members.html">List of all members.</a></p>
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<tr><td colspan="2"><h2>Public Member Functions</h2></td></tr>
<tr><td class="memItemLeft" align="right" valign="top"> </td><td class="memItemRight" valign="bottom"><a class="el" href="classgr__fir__fsf__simd.html#ac164834831dc5e1c7fc9f093407ffb44">gr_fir_fsf_simd</a> ()</td></tr>
<tr><td class="memItemLeft" align="right" valign="top"> </td><td class="memItemRight" valign="bottom"><a class="el" href="classgr__fir__fsf__simd.html#a4c327e214a874e99833839dbe2e28e76">gr_fir_fsf_simd</a> (const <a class="el" href="classstd_1_1vector.html">std::vector</a>< float > &<a class="el" href="interpolator__taps_8h.html#a30bf032e13c2a9fc4a98e14e390cd65a">taps</a>)</td></tr>
<tr><td class="memItemLeft" align="right" valign="top"> </td><td class="memItemRight" valign="bottom"><a class="el" href="classgr__fir__fsf__simd.html#a234d610431ed29c91adcccc2104f259e">~gr_fir_fsf_simd</a> ()</td></tr>
<tr><td class="memItemLeft" align="right" valign="top">virtual void </td><td class="memItemRight" valign="bottom"><a class="el" href="classgr__fir__fsf__simd.html#a73c1e774c165feec6b4e16123d4d83b4">set_taps</a> (const <a class="el" href="classstd_1_1vector.html">std::vector</a>< float > &<a class="el" href="interpolator__taps_8h.html#a30bf032e13c2a9fc4a98e14e390cd65a">taps</a>)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">install <code>new_taps</code> as the current taps. <a href="#a73c1e774c165feec6b4e16123d4d83b4"></a><br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">virtual short </td><td class="memItemRight" valign="bottom"><a class="el" href="classgr__fir__fsf__simd.html#a9b221f60ff010490358eed5e39bc9673">filter</a> (const float input[])</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">compute a single output value. <a href="#a9b221f60ff010490358eed5e39bc9673"></a><br/></td></tr>
<tr><td colspan="2"><h2>Protected Types</h2></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">typedef float(* </td><td class="memItemRight" valign="bottom"><a class="el" href="classgr__fir__fsf__simd.html#af0585e56d7a55c28bd095262ce9833f7">float_dotprod_t</a> )(const float *input, const float *<a class="el" href="interpolator__taps_8h.html#a30bf032e13c2a9fc4a98e14e390cd65a">taps</a>, unsigned n_4_float_blocks)</td></tr>
<tr><td colspan="2"><h2>Protected Attributes</h2></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">float * </td><td class="memItemRight" valign="bottom"><a class="el" href="classgr__fir__fsf__simd.html#ad6155ccd8813f66870faba766d0e3b5c">d_aligned_taps</a> [4]</td></tr>
<tr><td class="memItemLeft" align="right" valign="top"><a class="el" href="classgr__fir__fsf__simd.html#af0585e56d7a55c28bd095262ce9833f7">float_dotprod_t</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="classgr__fir__fsf__simd.html#ad656ca2d761e97a0c746913bc6c0d6f3">d_float_dotprod</a></td></tr>
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<hr/><a name="_details"></a><h2>Detailed Description</h2>
<p>common base class for SIMD versions of <a class="el" href="classgr__fir__fsf.html" title="Abstract class for FIR with float input, short output and float tapsThis is the abstract...">gr_fir_fsf</a></p>
<p>This base class handles alignment issues common to SSE and 3DNOW subclasses. </p>
<hr/><h2>Member Typedef Documentation</h2>
<a class="anchor" id="af0585e56d7a55c28bd095262ce9833f7"></a><!-- doxytag: member="gr_fir_fsf_simd::float_dotprod_t" ref="af0585e56d7a55c28bd095262ce9833f7" args=")(const float *input, const float *taps, unsigned n_4_float_blocks)" -->
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<td class="memname">typedef float(* <a class="el" href="classgr__fir__fsf__simd.html#af0585e56d7a55c28bd095262ce9833f7">gr_fir_fsf_simd::float_dotprod_t</a>)(const float *input, const float *<a class="el" href="interpolator__taps_8h.html#a30bf032e13c2a9fc4a98e14e390cd65a">taps</a>, unsigned n_4_float_blocks)<code> [protected]</code></td>
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<hr/><h2>Constructor & Destructor Documentation</h2>
<a class="anchor" id="ac164834831dc5e1c7fc9f093407ffb44"></a><!-- doxytag: member="gr_fir_fsf_simd::gr_fir_fsf_simd" ref="ac164834831dc5e1c7fc9f093407ffb44" args="()" -->
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<td class="memname">gr_fir_fsf_simd::gr_fir_fsf_simd </td>
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<a class="anchor" id="a4c327e214a874e99833839dbe2e28e76"></a><!-- doxytag: member="gr_fir_fsf_simd::gr_fir_fsf_simd" ref="a4c327e214a874e99833839dbe2e28e76" args="(const std::vector< float > &taps)" -->
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<td class="memname">gr_fir_fsf_simd::gr_fir_fsf_simd </td>
<td>(</td>
<td class="paramtype">const <a class="el" href="classstd_1_1vector.html">std::vector</a>< float > & </td>
<td class="paramname"> <em>taps</em></td>
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<a class="anchor" id="a234d610431ed29c91adcccc2104f259e"></a><!-- doxytag: member="gr_fir_fsf_simd::~gr_fir_fsf_simd" ref="a234d610431ed29c91adcccc2104f259e" args="()" -->
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<td class="memname">gr_fir_fsf_simd::~gr_fir_fsf_simd </td>
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<hr/><h2>Member Function Documentation</h2>
<a class="anchor" id="a9b221f60ff010490358eed5e39bc9673"></a><!-- doxytag: member="gr_fir_fsf_simd::filter" ref="a9b221f60ff010490358eed5e39bc9673" args="(const float input[])" -->
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<td class="memname">virtual short gr_fir_fsf_simd::filter </td>
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<td class="paramtype">const float </td>
<td class="paramname"> <em>input</em>[]</td>
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<td><code> [virtual]</code></td>
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<p>compute a single output value. </p>
<p><code>input</code> must have <a class="el" href="classgr__fir__fsf.html#a695ea61ff30c7b9c196571834002da46">ntaps()</a> valid entries. input[0] .. input[<a class="el" href="classgr__fir__fsf.html#a695ea61ff30c7b9c196571834002da46">ntaps()</a> - 1] are referenced to compute the output value.</p>
<dl class="return"><dt><b>Returns:</b></dt><dd>the filtered input value. </dd></dl>
<p>Reimplemented from <a class="el" href="classgr__fir__fsf__generic.html#a8a88649387d44e24b3c2ab7033087f82">gr_fir_fsf_generic</a>.</p>
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<a class="anchor" id="a73c1e774c165feec6b4e16123d4d83b4"></a><!-- doxytag: member="gr_fir_fsf_simd::set_taps" ref="a73c1e774c165feec6b4e16123d4d83b4" args="(const std::vector< float > &taps)" -->
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<td class="memname">virtual void gr_fir_fsf_simd::set_taps </td>
<td>(</td>
<td class="paramtype">const <a class="el" href="classstd_1_1vector.html">std::vector</a>< float > & </td>
<td class="paramname"> <em>taps</em></td>
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<td><code> [virtual]</code></td>
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<p>install <code>new_taps</code> as the current taps. </p>
<p>Reimplemented from <a class="el" href="classgr__fir__fsf.html#adc6959598abe050fe195c2202fc6c521">gr_fir_fsf</a>.</p>
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<hr/><h2>Member Data Documentation</h2>
<a class="anchor" id="ad6155ccd8813f66870faba766d0e3b5c"></a><!-- doxytag: member="gr_fir_fsf_simd::d_aligned_taps" ref="ad6155ccd8813f66870faba766d0e3b5c" args="[4]" -->
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<td class="memname">float* <a class="el" href="classgr__fir__fsf__simd.html#ad6155ccd8813f66870faba766d0e3b5c">gr_fir_fsf_simd::d_aligned_taps</a>[4]<code> [protected]</code></td>
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<p><code>aligned_taps</code> holds 4 copies of the coefficients preshifted by 0, 1, 2, or 3 floats to meet all possible input data alignments. This allows us to always fetch data and taps that are 128-bit aligned. </p>
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<a class="anchor" id="ad656ca2d761e97a0c746913bc6c0d6f3"></a><!-- doxytag: member="gr_fir_fsf_simd::d_float_dotprod" ref="ad656ca2d761e97a0c746913bc6c0d6f3" args="" -->
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<td class="memname"><a class="el" href="classgr__fir__fsf__simd.html#af0585e56d7a55c28bd095262ce9833f7">float_dotprod_t</a> <a class="el" href="classgr__fir__fsf__simd.html#ad656ca2d761e97a0c746913bc6c0d6f3">gr_fir_fsf_simd::d_float_dotprod</a><code> [protected]</code></td>
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<hr/>The documentation for this class was generated from the following file:<ul>
<li><a class="el" href="gr__fir__fsf__simd_8h_source.html">gr_fir_fsf_simd.h</a></li>
</ul>
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