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Release 4.4.3 tarball
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Gary Scavone
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Stephen Sinclair
Stephen Sinclair
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@@ -9,7 +9,7 @@
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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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@@ -42,48 +42,79 @@
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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#ad65c63bfad0ffac03db7f56cf706e4ba" 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#ad65c63bfad0ffac03db7f56cf706e4ba">00066</a> <span class="keyword">inline</span> StkFloat <a class="code" href="classstk_1_1Drummer.html#ad65c63bfad0ffac03db7f56cf706e4ba" 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#a3c83b6d43f76bec06f11caa9de76881e" title="Input one sample to the filter and return one output.">tick</a>( waves_[i].<a class="code" href="classstk_1_1Drummer.html#ad65c63bfad0ffac03db7f56cf706e4ba" 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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<a name="l00065"></a>00065 <a class="code" href="classstk_1_1StkFrames.html" title="An STK class to handle vectorized audio data.">StkFrames</a>& <a class="code" href="classstk_1_1Drummer.html#ad65c63bfad0ffac03db7f56cf706e4ba" title="Compute and return one output sample.">tick</a>( <a class="code" href="classstk_1_1StkFrames.html" title="An STK class to handle vectorized audio data.">StkFrames</a>& frames, <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> channel = 0 );
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<a name="l00066"></a>00066
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<a name="l00067"></a>00067 <span class="keyword">protected</span>:
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<a name="l00068"></a>00068
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<a name="l00069"></a>00069 <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="l00070"></a>00070 <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="l00071"></a>00071 std::vector<int> soundOrder_;
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<a name="l00072"></a>00072 std::vector<int> soundNumber_;
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<a name="l00073"></a>00073 <span class="keywordtype">int</span> nSounding_;
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<a name="l00074"></a>00074 };
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<a name="l00075"></a>00075
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<a name="l00076"></a><a class="code" href="classstk_1_1Drummer.html#ad65c63bfad0ffac03db7f56cf706e4ba">00076</a> <span class="keyword">inline</span> StkFloat <a class="code" href="classstk_1_1Drummer.html#ad65c63bfad0ffac03db7f56cf706e4ba" 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="l00077"></a>00077 {
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<a name="l00078"></a>00078 lastFrame_[0] = 0.0;
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<a name="l00079"></a>00079 <span class="keywordflow">if</span> ( nSounding_ == 0 ) <span class="keywordflow">return</span> lastFrame_[0];
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<a name="l00080"></a>00080
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<a name="l00081"></a>00081 <span class="keywordflow">for</span> ( <span class="keywordtype">int</span> i=0; i<DRUM_POLYPHONY; i++ ) {
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<a name="l00082"></a>00082 <span class="keywordflow">if</span> ( soundOrder_[i] >= 0 ) {
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<a name="l00083"></a>00083 <span class="keywordflow">if</span> ( waves_[i].isFinished() ) {
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<a name="l00084"></a>00084 <span class="comment">// Re-order the list.</span>
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<a name="l00085"></a>00085 <span class="keywordflow">for</span> ( <span class="keywordtype">int</span> j=0; j<DRUM_POLYPHONY; j++ ) {
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<a name="l00086"></a>00086 <span class="keywordflow">if</span> ( soundOrder_[j] > soundOrder_[i] )
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<a name="l00087"></a>00087 soundOrder_[j] -= 1;
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<a name="l00088"></a>00088 }
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<a name="l00089"></a>00089 soundOrder_[i] = -1;
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<a name="l00090"></a>00090 nSounding_--;
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<a name="l00091"></a>00091 }
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<a name="l00092"></a>00092 <span class="keywordflow">else</span>
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<a name="l00093"></a>00093 lastFrame_[0] += filters_[i].<a class="code" href="classstk_1_1OnePole.html#a3c83b6d43f76bec06f11caa9de76881e" title="Input one sample to the filter and return one output.">tick</a>( waves_[i].<a class="code" href="classstk_1_1Drummer.html#ad65c63bfad0ffac03db7f56cf706e4ba" title="Compute and return one output sample.">tick</a>() );
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<a name="l00094"></a>00094 }
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<a name="l00095"></a>00095 }
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<a name="l00096"></a>00096
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<a name="l00097"></a>00097 <span class="keywordflow">return</span> lastFrame_[0];
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<a name="l00098"></a>00098 }
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<a name="l00099"></a>00099
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<a name="l00100"></a><a class="code" href="classstk_1_1Drummer.html#ad186a954527a518c47467e6caaa2e2f5">00100</a> <span class="keyword">inline</span> <a class="code" href="classstk_1_1StkFrames.html" title="An STK class to handle vectorized audio data.">StkFrames</a>& <a class="code" href="classstk_1_1Drummer.html#ad65c63bfad0ffac03db7f56cf706e4ba" title="Compute and return one output sample.">Drummer :: tick</a>( <a class="code" href="classstk_1_1StkFrames.html" title="An STK class to handle vectorized audio data.">StkFrames</a>& frames, <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> channel )
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<a name="l00101"></a>00101 {
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<a name="l00102"></a>00102 <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> nChannels = lastFrame_.<a class="code" href="classstk_1_1StkFrames.html#aec7ef9c46675a24111aa6e2fda3ba870" title="Return the number of channels represented by the data.">channels</a>();
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<a name="l00103"></a>00103 <span class="preprocessor">#if defined(_STK_DEBUG_)</span>
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<a name="l00104"></a>00104 <span class="preprocessor"></span> <span class="keywordflow">if</span> ( channel > frames.<a class="code" href="classstk_1_1StkFrames.html#aec7ef9c46675a24111aa6e2fda3ba870" title="Return the number of channels represented by the data.">channels</a>() - nChannels ) {
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<a name="l00105"></a>00105 oStream_ << <span class="stringliteral">"Drummer::tick(): channel and StkFrames arguments are incompatible!"</span>;
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<a name="l00106"></a>00106 <a class="code" href="classstk_1_1Stk.html#a48ac73a0d8ca28445ba1a054e1f061ff" title="Static function for error reporting and handling using c-strings.">handleError</a>( StkError::FUNCTION_ARGUMENT );
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<a name="l00107"></a>00107 }
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<a name="l00108"></a>00108 <span class="preprocessor">#endif</span>
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<a name="l00109"></a>00109 <span class="preprocessor"></span>
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<a name="l00110"></a>00110 StkFloat *samples = &frames[channel];
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<a name="l00111"></a>00111 <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> j, hop = frames.<a class="code" href="classstk_1_1StkFrames.html#aec7ef9c46675a24111aa6e2fda3ba870" title="Return the number of channels represented by the data.">channels</a>() - nChannels;
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<a name="l00112"></a>00112 <span class="keywordflow">if</span> ( nChannels == 1 ) {
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<a name="l00113"></a>00113 <span class="keywordflow">for</span> ( <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> i=0; i<frames.<a class="code" href="classstk_1_1StkFrames.html#a05b1ab6fa750a8221a7d65c30e0cdab9" title="Return the number of sample frames represented by the data.">frames</a>(); i++, samples += hop )
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<a name="l00114"></a>00114 *samples++ = <a class="code" href="classstk_1_1Drummer.html#ad65c63bfad0ffac03db7f56cf706e4ba" title="Compute and return one output sample.">tick</a>();
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<a name="l00115"></a>00115 }
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<a name="l00116"></a>00116 <span class="keywordflow">else</span> {
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<a name="l00117"></a>00117 <span class="keywordflow">for</span> ( <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> i=0; i<frames.<a class="code" href="classstk_1_1StkFrames.html#a05b1ab6fa750a8221a7d65c30e0cdab9" title="Return the number of sample frames represented by the data.">frames</a>(); i++, samples += hop ) {
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<a name="l00118"></a>00118 *samples++ = <a class="code" href="classstk_1_1Drummer.html#ad65c63bfad0ffac03db7f56cf706e4ba" title="Compute and return one output sample.">tick</a>();
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<a name="l00119"></a>00119 <span class="keywordflow">for</span> ( j=1; j<nChannels; j++ )
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<a name="l00120"></a>00120 *samples++ = lastFrame_[j];
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<a name="l00121"></a>00121 }
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<a name="l00122"></a>00122 }
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<a name="l00123"></a>00123
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<a name="l00124"></a>00124 <span class="keywordflow">return</span> frames;
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<a name="l00125"></a>00125 }
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<a name="l00126"></a>00126
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<a name="l00127"></a>00127
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<a name="l00128"></a>00128 } <span class="comment">// stk namespace</span>
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<a name="l00129"></a>00129
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<a name="l00130"></a>00130 <span class="preprocessor">#endif</span>
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</pre></div></div>
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<HR>
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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>©1995-2010 Perry R. Cook and Gary P. Scavone. All Rights Reserved.</td></tr>
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<tr><td>©1995-2011 Perry R. Cook and Gary P. Scavone. All Rights Reserved.</td></tr>
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</table>
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