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<TITLE>The Synthesis ToolKit in C++ (STK)</TITLE>
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<a class="qindex" href="index.html">Home</a> <a class="qindex" href="information.html">Information</a> <a class="qindex" href="classes.html">Classes</a> <a class="qindex" href="download.html">Download</a> <a class="qindex" href="usage.html">Usage</a> <a class="qindex" href="maillist.html">Mail List</a> <a class="qindex" href="system.html">Requirements</a> <a class="qindex" href="links.html">Links</a> <a class="qindex" href="faq.html">FAQ</a> <a class="qindex" href="tutorial.html">Tutorial</a></CENTER>
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<div class="navpath"><a class="el" href="dir_d499f4756a454d8a02faa5ebe57d576f.html">include</a>
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<h1>Drummer.h</h1><div class="fragment"><pre class="fragment"><a name="l00001"></a>00001 <span class="preprocessor">#ifndef STK_DRUMMER_H</span>
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<a name="l00002"></a>00002 <span class="preprocessor"></span><span class="preprocessor">#define STK_DRUMMER_H</span>
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<a name="l00003"></a>00003 <span class="preprocessor"></span>
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<a name="l00004"></a>00004 <span class="preprocessor">#include "Instrmnt.h"</span>
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<a name="l00005"></a>00005 <span class="preprocessor">#include "FileWvIn.h"</span>
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<a name="l00006"></a>00006 <span class="preprocessor">#include "OnePole.h"</span>
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<a name="l00007"></a>00007
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<a name="l00008"></a>00008 <span class="keyword">namespace </span>stk {
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<a name="l00009"></a>00009
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<a name="l00010"></a>00010 <span class="comment">/***************************************************/</span>
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<a name="l00025"></a>00025 <span class="comment">/***************************************************/</span>
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<a name="l00026"></a>00026
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<a name="l00027"></a>00027 <span class="keyword">const</span> <span class="keywordtype">int</span> DRUM_NUMWAVES = 11;
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<a name="l00028"></a>00028 <span class="keyword">const</span> <span class="keywordtype">int</span> DRUM_POLYPHONY = 4;
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<a name="l00029"></a>00029
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<a name="l00030"></a><a class="code" href="classstk_1_1Drummer.html">00030</a> <span class="keyword">class </span><a class="code" href="classstk_1_1Drummer.html" title="STK drum sample player class.">Drummer</a> : <span class="keyword">public</span> <a class="code" href="classstk_1_1Instrmnt.html" title="STK instrument abstract base class.">Instrmnt</a>
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<a name="l00031"></a>00031 {
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<a name="l00032"></a>00032 <span class="keyword">public</span>:
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<a name="l00034"></a>00034
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<a name="l00037"></a>00037 <a class="code" href="classstk_1_1Drummer.html#f5262dd2b29ae453323c0a514d79d26a" title="Class constructor.">Drummer</a>( <span class="keywordtype">void</span> );
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<a name="l00038"></a>00038
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<a name="l00040"></a>00040 <a class="code" href="classstk_1_1Drummer.html#365fb4b2c501129f2efd6edfad1f5453" title="Class destructor.">~Drummer</a>( <span class="keywordtype">void</span> );
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<a name="l00041"></a>00041
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<a name="l00043"></a>00043
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<a name="l00049"></a>00049 <span class="keywordtype">void</span> <a class="code" href="classstk_1_1Drummer.html#5ea03a0ef9a3db02942799b5cbca2ea2" title="Start a note with the given drum type and amplitude.">noteOn</a>( StkFloat instrument, StkFloat amplitude );
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<a name="l00050"></a>00050
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<a name="l00052"></a>00052 <span class="keywordtype">void</span> <a class="code" href="classstk_1_1Drummer.html#a735313fbdf7f1201fcb167874ecc7cc" title="Stop a note with the given amplitude (speed of decay).">noteOff</a>( StkFloat amplitude );
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<a name="l00053"></a>00053
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<a name="l00055"></a>00055 StkFloat <a class="code" href="classstk_1_1Drummer.html#d65c63bfad0ffac03db7f56cf706e4ba" title="Compute and return one output sample.">tick</a>( <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> channel = 0 );
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<a name="l00056"></a>00056
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<a name="l00057"></a>00057 <span class="keyword">protected</span>:
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<a name="l00058"></a>00058
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<a name="l00059"></a>00059 <a class="code" href="classstk_1_1FileWvIn.html" title="STK audio file input class.">FileWvIn</a> waves_[DRUM_POLYPHONY];
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<a name="l00060"></a>00060 <a class="code" href="classstk_1_1OnePole.html" title="STK one-pole filter class.">OnePole</a> filters_[DRUM_POLYPHONY];
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<a name="l00061"></a>00061 std::vector<int> soundOrder_;
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<a name="l00062"></a>00062 std::vector<int> soundNumber_;
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<a name="l00063"></a>00063 <span class="keywordtype">int</span> nSounding_;
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<a name="l00064"></a>00064 };
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<a name="l00065"></a>00065
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<a name="l00066"></a><a class="code" href="classstk_1_1Drummer.html#d65c63bfad0ffac03db7f56cf706e4ba">00066</a> <span class="keyword">inline</span> StkFloat <a class="code" href="classstk_1_1Drummer.html#d65c63bfad0ffac03db7f56cf706e4ba" title="Compute and return one output sample.">Drummer :: tick</a>( <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> )
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<a name="l00067"></a>00067 {
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<a name="l00068"></a>00068 lastFrame_[0] = 0.0;
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<a name="l00069"></a>00069 <span class="keywordflow">if</span> ( nSounding_ == 0 ) <span class="keywordflow">return</span> lastFrame_[0];
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<a name="l00070"></a>00070
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<a name="l00071"></a>00071 <span class="keywordflow">for</span> ( <span class="keywordtype">int</span> i=0; i<DRUM_POLYPHONY; i++ ) {
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<a name="l00072"></a>00072 <span class="keywordflow">if</span> ( soundOrder_[i] >= 0 ) {
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<a name="l00073"></a>00073 <span class="keywordflow">if</span> ( waves_[i].isFinished() ) {
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<a name="l00074"></a>00074 <span class="comment">// Re-order the list.</span>
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<a name="l00075"></a>00075 <span class="keywordflow">for</span> ( <span class="keywordtype">int</span> j=0; j<DRUM_POLYPHONY; j++ ) {
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<a name="l00076"></a>00076 <span class="keywordflow">if</span> ( soundOrder_[j] > soundOrder_[i] )
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<a name="l00077"></a>00077 soundOrder_[j] -= 1;
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<a name="l00078"></a>00078 }
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<a name="l00079"></a>00079 soundOrder_[i] = -1;
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<a name="l00080"></a>00080 nSounding_--;
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<a name="l00081"></a>00081 }
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<a name="l00082"></a>00082 <span class="keywordflow">else</span>
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<a name="l00083"></a>00083 lastFrame_[0] += filters_[i].<a class="code" href="classstk_1_1OnePole.html#3c83b6d43f76bec06f11caa9de76881e" title="Input one sample to the filter and return one output.">tick</a>( waves_[i].<a class="code" href="classstk_1_1Drummer.html#d65c63bfad0ffac03db7f56cf706e4ba" title="Compute and return one output sample.">tick</a>() );
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<a name="l00084"></a>00084 }
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<a name="l00085"></a>00085 }
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<a name="l00086"></a>00086
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<a name="l00087"></a>00087 <span class="keywordflow">return</span> lastFrame_[0];
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<a name="l00088"></a>00088 }
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<a name="l00089"></a>00089
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<a name="l00090"></a>00090 } <span class="comment">// stk namespace</span>
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<a name="l00091"></a>00091
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<a name="l00092"></a>00092 <span class="preprocessor">#endif</span>
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</pre></div></div>
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<table>
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<tr><td><A HREF="http://ccrma.stanford.edu/software/stk/"><I>The Synthesis ToolKit in C++ (STK)</I></A></td></tr>
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<tr><td>©1995-2009 Perry R. Cook and Gary P. Scavone. All Rights Reserved.</td></tr>
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