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<h1>Voicer.h</h1><div class="fragment"><pre class="fragment"><a name="l00001"></a>00001 <span class="preprocessor">#ifndef STK_VOICER_H</span>
<a name="l00002"></a>00002 <span class="preprocessor"></span><span class="preprocessor">#define STK_VOICER_H</span>
<a name="l00003"></a>00003 <span class="preprocessor"></span>
<a name="l00004"></a>00004 <span class="preprocessor">#include "Instrmnt.h"</span>
<a name="l00005"></a>00005 <span class="preprocessor">#include &lt;vector&gt;</span>
<a name="l00006"></a>00006
<a name="l00007"></a>00007 <span class="keyword">namespace </span>stk {
<a name="l00008"></a>00008
<a name="l00009"></a>00009 <span class="comment">/***************************************************/</span>
<a name="l00032"></a>00032 <span class="comment">/***************************************************/</span>
<a name="l00033"></a>00033
<a name="l00034"></a><a class="code" href="classstk_1_1Voicer.html">00034</a> <span class="keyword">class </span><a class="code" href="classstk_1_1Voicer.html" title="STK voice manager class.">Voicer</a> : <span class="keyword">public</span> <a class="code" href="classstk_1_1Stk.html" title="STK base class.">Stk</a>
<a name="l00035"></a>00035 {
<a name="l00036"></a>00036 <span class="keyword">public</span>:
<a name="l00038"></a>00038 <a class="code" href="classstk_1_1Voicer.html#4b2eb777e91f0dd33403ec23c68bb43f" title="Class constructor taking an optional note decay time (in seconds).">Voicer</a>( StkFloat decayTime = 0.2 );
<a name="l00039"></a>00039
<a name="l00041"></a>00041
<a name="l00045"></a>00045 <span class="keywordtype">void</span> <a class="code" href="classstk_1_1Voicer.html#ff9fc9304ef6ae9f7aa1e15611728b8c" title="Add an instrument with an optional group number to the voice manager.">addInstrument</a>( <a class="code" href="classstk_1_1Instrmnt.html" title="STK instrument abstract base class.">Instrmnt</a> *instrument, <span class="keywordtype">int</span> group=0 );
<a name="l00046"></a>00046
<a name="l00048"></a>00048
<a name="l00053"></a>00053 <span class="keywordtype">void</span> <a class="code" href="classstk_1_1Voicer.html#c5190f84fb8507cac2a18dece242d4d8" title="Remove the given instrument pointer from the voice manager&amp;#39;s control.">removeInstrument</a>( <a class="code" href="classstk_1_1Instrmnt.html" title="STK instrument abstract base class.">Instrmnt</a> *instrument );
<a name="l00054"></a>00054
<a name="l00056"></a>00056
<a name="l00064"></a>00064 <span class="keywordtype">long</span> <a class="code" href="classstk_1_1Voicer.html#bd09d3a8e935fe36776f165038e33176" title="Initiate a noteOn event with the given note number and amplitude and return a unique...">noteOn</a>( StkFloat noteNumber, StkFloat amplitude, <span class="keywordtype">int</span> group=0 );
<a name="l00065"></a>00065
<a name="l00067"></a>00067
<a name="l00070"></a>00070 <span class="keywordtype">void</span> <a class="code" href="classstk_1_1Voicer.html#4843895d8e4c0fffdd165aa480e2dcde" title="Send a noteOff to all voices having the given noteNumber and optional group (default...">noteOff</a>( StkFloat noteNumber, StkFloat amplitude, <span class="keywordtype">int</span> group=0 );
<a name="l00071"></a>00071
<a name="l00073"></a>00073
<a name="l00076"></a>00076 <span class="keywordtype">void</span> <a class="code" href="classstk_1_1Voicer.html#4843895d8e4c0fffdd165aa480e2dcde" title="Send a noteOff to all voices having the given noteNumber and optional group (default...">noteOff</a>( <span class="keywordtype">long</span> tag, StkFloat amplitude );
<a name="l00077"></a>00077
<a name="l00079"></a>00079
<a name="l00082"></a>00082 <span class="keywordtype">void</span> <a class="code" href="classstk_1_1Voicer.html#5ee3f8a17e031430486e030520709acf" title="Send a frequency update message to all voices assigned to the optional group argument...">setFrequency</a>( StkFloat noteNumber, <span class="keywordtype">int</span> group=0 );
<a name="l00083"></a>00083
<a name="l00085"></a>00085
<a name="l00088"></a>00088 <span class="keywordtype">void</span> <a class="code" href="classstk_1_1Voicer.html#5ee3f8a17e031430486e030520709acf" title="Send a frequency update message to all voices assigned to the optional group argument...">setFrequency</a>( <span class="keywordtype">long</span> tag, StkFloat noteNumber );
<a name="l00089"></a>00089
<a name="l00091"></a>00091 <span class="keywordtype">void</span> <a class="code" href="classstk_1_1Voicer.html#e2ab6a6804960c686509d7f919829ad4" title="Send a pitchBend message to all voices assigned to the optional group argument (default...">pitchBend</a>( StkFloat value, <span class="keywordtype">int</span> group=0 );
<a name="l00092"></a>00092
<a name="l00094"></a>00094 <span class="keywordtype">void</span> <a class="code" href="classstk_1_1Voicer.html#e2ab6a6804960c686509d7f919829ad4" title="Send a pitchBend message to all voices assigned to the optional group argument (default...">pitchBend</a>( <span class="keywordtype">long</span> tag, StkFloat value );
<a name="l00095"></a>00095
<a name="l00097"></a>00097 <span class="keywordtype">void</span> <a class="code" href="classstk_1_1Voicer.html#b5fe99a639a872c90aed2541417cc896" title="Send a controlChange to all instruments assigned to the optional group argument (default...">controlChange</a>( <span class="keywordtype">int</span> number, StkFloat value, <span class="keywordtype">int</span> group=0 );
<a name="l00098"></a>00098
<a name="l00100"></a>00100 <span class="keywordtype">void</span> <a class="code" href="classstk_1_1Voicer.html#b5fe99a639a872c90aed2541417cc896" title="Send a controlChange to all instruments assigned to the optional group argument (default...">controlChange</a>( <span class="keywordtype">long</span> tag, <span class="keywordtype">int</span> number, StkFloat value );
<a name="l00101"></a>00101
<a name="l00103"></a>00103 <span class="keywordtype">void</span> <a class="code" href="classstk_1_1Voicer.html#238f0936f6c0b54c7eb756ad3ac1f019" title="Send a noteOff message to all existing voices.">silence</a>( <span class="keywordtype">void</span> );
<a name="l00104"></a>00104
<a name="l00106"></a><a class="code" href="classstk_1_1Voicer.html#35230ae97772ae581fb9658a5f4d57b6">00106</a> <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> <a class="code" href="classstk_1_1Voicer.html#35230ae97772ae581fb9658a5f4d57b6" title="Return the current number of output channels.">channelsOut</a>( <span class="keywordtype">void</span> )<span class="keyword"> const </span>{ <span class="keywordflow">return</span> lastFrame_.<a class="code" href="classstk_1_1StkFrames.html#ec7ef9c46675a24111aa6e2fda3ba870" title="Return the number of channels represented by the data.">channels</a>(); };
<a name="l00107"></a>00107
<a name="l00109"></a><a class="code" href="classstk_1_1Voicer.html#50caec57c6a566e4836181774adf5e7b">00109</a> <span class="keyword">const</span> <a class="code" href="classstk_1_1StkFrames.html" title="An STK class to handle vectorized audio data.">StkFrames</a>&amp; <a class="code" href="classstk_1_1Voicer.html#50caec57c6a566e4836181774adf5e7b" title="Return an StkFrames reference to the last output sample frame.">lastFrame</a>( <span class="keywordtype">void</span> )<span class="keyword"> const </span>{ <span class="keywordflow">return</span> lastFrame_; };
<a name="l00110"></a>00110
<a name="l00112"></a>00112
<a name="l00120"></a>00120 StkFloat <a class="code" href="classstk_1_1Voicer.html#98d843fa1f9fd2ad9a9fb03538dba03a" title="Return the specified channel value of the last computed frame.">lastOut</a>( <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> channel = 0 );
<a name="l00121"></a>00121
<a name="l00123"></a>00123
<a name="l00131"></a>00131 StkFloat <a class="code" href="classstk_1_1Voicer.html#3e504b3a6b896772b0f94a12faf0ee70" title="Mix one sample frame of all sounding voices and return the specified channel value...">tick</a>( <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> channel = 0 );
<a name="l00132"></a>00132
<a name="l00134"></a>00134
<a name="l00142"></a>00142 <a class="code" href="classstk_1_1StkFrames.html" title="An STK class to handle vectorized audio data.">StkFrames</a>&amp; <a class="code" href="classstk_1_1Voicer.html#3e504b3a6b896772b0f94a12faf0ee70" title="Mix one sample frame of all sounding voices and return the specified channel value...">tick</a>( <a class="code" href="classstk_1_1StkFrames.html" title="An STK class to handle vectorized audio data.">StkFrames</a>&amp; frames, <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> channel = 0 );
<a name="l00143"></a>00143
<a name="l00144"></a>00144 <span class="keyword">protected</span>:
<a name="l00145"></a>00145
<a name="l00146"></a>00146 <span class="keyword">struct </span>Voice {
<a name="l00147"></a>00147 <a class="code" href="classstk_1_1Instrmnt.html" title="STK instrument abstract base class.">Instrmnt</a> *instrument;
<a name="l00148"></a>00148 <span class="keywordtype">long</span> tag;
<a name="l00149"></a>00149 StkFloat noteNumber;
<a name="l00150"></a>00150 StkFloat frequency;
<a name="l00151"></a>00151 <span class="keywordtype">int</span> sounding;
<a name="l00152"></a>00152 <span class="keywordtype">int</span> group;
<a name="l00153"></a>00153
<a name="l00154"></a>00154 <span class="comment">// Default constructor.</span>
<a name="l00155"></a>00155 Voice()
<a name="l00156"></a>00156 :instrument(0), tag(0), noteNumber(-1.0), frequency(0.0), sounding(0), group(0) {}
<a name="l00157"></a>00157 };
<a name="l00158"></a>00158
<a name="l00159"></a>00159 std::vector&lt;Voice&gt; voices_;
<a name="l00160"></a>00160 <span class="keywordtype">long</span> tags_;
<a name="l00161"></a>00161 <span class="keywordtype">int</span> muteTime_;
<a name="l00162"></a>00162 StkFrames lastFrame_;
<a name="l00163"></a>00163 };
<a name="l00164"></a>00164
<a name="l00165"></a><a class="code" href="classstk_1_1Voicer.html#98d843fa1f9fd2ad9a9fb03538dba03a">00165</a> <span class="keyword">inline</span> StkFloat <a class="code" href="classstk_1_1Voicer.html#98d843fa1f9fd2ad9a9fb03538dba03a" title="Return the specified channel value of the last computed frame.">Voicer :: lastOut</a>( <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> channel )
<a name="l00166"></a>00166 {
<a name="l00167"></a>00167 <span class="preprocessor">#if defined(_STK_DEBUG_)</span>
<a name="l00168"></a>00168 <span class="preprocessor"></span> <span class="keywordflow">if</span> ( channel &gt;= lastFrame_.<a class="code" href="classstk_1_1StkFrames.html#ec7ef9c46675a24111aa6e2fda3ba870" title="Return the number of channels represented by the data.">channels</a>() ) {
<a name="l00169"></a>00169 errorString_ &lt;&lt; <span class="stringliteral">"Voicer::lastOut(): channel argument is invalid!"</span>;
<a name="l00170"></a>00170 <a class="code" href="classstk_1_1Stk.html#48ac73a0d8ca28445ba1a054e1f061ff" title="Static function for error reporting and handling using c-strings.">handleError</a>( StkError::FUNCTION_ARGUMENT );
<a name="l00171"></a>00171 }
<a name="l00172"></a>00172 <span class="preprocessor">#endif</span>
<a name="l00173"></a>00173 <span class="preprocessor"></span>
<a name="l00174"></a>00174 <span class="keywordflow">return</span> lastFrame_[channel];
<a name="l00175"></a>00175 }
<a name="l00176"></a>00176
<a name="l00177"></a>00177
<a name="l00178"></a><a class="code" href="classstk_1_1Voicer.html#3e504b3a6b896772b0f94a12faf0ee70">00178</a> <span class="keyword">inline</span> StkFloat <a class="code" href="classstk_1_1Voicer.html#3e504b3a6b896772b0f94a12faf0ee70" title="Mix one sample frame of all sounding voices and return the specified channel value...">Voicer :: tick</a>( <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> channel )
<a name="l00179"></a>00179 {
<a name="l00180"></a>00180 <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> j;
<a name="l00181"></a>00181 <span class="keywordflow">for</span> ( j=0; j&lt;lastFrame_.<a class="code" href="classstk_1_1StkFrames.html#ec7ef9c46675a24111aa6e2fda3ba870" title="Return the number of channels represented by the data.">channels</a>(); j++ ) lastFrame_[j] = 0.0;
<a name="l00182"></a>00182 <span class="keywordflow">for</span> ( <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> i=0; i&lt;voices_.size(); i++ ) {
<a name="l00183"></a>00183 <span class="keywordflow">if</span> ( voices_[i].sounding != 0 ) {
<a name="l00184"></a>00184 voices_[i].instrument-&gt;tick();
<a name="l00185"></a>00185 <span class="keywordflow">for</span> ( j=0; j&lt;voices_[i].instrument-&gt;channelsOut(); j++ ) lastFrame_[j] += voices_[i].instrument-&gt;lastOut( j );
<a name="l00186"></a>00186 }
<a name="l00187"></a>00187 <span class="keywordflow">if</span> ( voices_[i].sounding &lt; 0 ) {
<a name="l00188"></a>00188 voices_[i].sounding++;
<a name="l00189"></a>00189 <span class="keywordflow">if</span> ( voices_[i].sounding == 0 )
<a name="l00190"></a>00190 voices_[i].noteNumber = -1;
<a name="l00191"></a>00191 }
<a name="l00192"></a>00192 }
<a name="l00193"></a>00193
<a name="l00194"></a>00194 <span class="keywordflow">return</span> lastFrame_[channel];
<a name="l00195"></a>00195 }
<a name="l00196"></a>00196
<a name="l00197"></a><a class="code" href="classstk_1_1Voicer.html#3fd795b0fce684c470484936ef39aa16">00197</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>&amp; <a class="code" href="classstk_1_1Voicer.html#3e504b3a6b896772b0f94a12faf0ee70" title="Mix one sample frame of all sounding voices and return the specified channel value...">Voicer :: tick</a>( <a class="code" href="classstk_1_1StkFrames.html" title="An STK class to handle vectorized audio data.">StkFrames</a>&amp; frames, <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> channel )
<a name="l00198"></a>00198 {
<a name="l00199"></a>00199 <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> nChannels = lastFrame_.<a class="code" href="classstk_1_1StkFrames.html#ec7ef9c46675a24111aa6e2fda3ba870" title="Return the number of channels represented by the data.">channels</a>();
<a name="l00200"></a>00200 <span class="preprocessor">#if defined(_STK_DEBUG_)</span>
<a name="l00201"></a>00201 <span class="preprocessor"></span> <span class="keywordflow">if</span> ( channel &gt; frames.<a class="code" href="classstk_1_1StkFrames.html#ec7ef9c46675a24111aa6e2fda3ba870" title="Return the number of channels represented by the data.">channels</a>() - nChannels ) {
<a name="l00202"></a>00202 errorString_ &lt;&lt; <span class="stringliteral">"Voicer::tick(): channel and StkFrames arguments are incompatible!"</span>;
<a name="l00203"></a>00203 <a class="code" href="classstk_1_1Stk.html#48ac73a0d8ca28445ba1a054e1f061ff" title="Static function for error reporting and handling using c-strings.">handleError</a>( StkError::FUNCTION_ARGUMENT );
<a name="l00204"></a>00204 }
<a name="l00205"></a>00205 <span class="preprocessor">#endif</span>
<a name="l00206"></a>00206 <span class="preprocessor"></span>
<a name="l00207"></a>00207 StkFloat *samples = &amp;frames[channel];
<a name="l00208"></a>00208 <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> j, hop = frames.<a class="code" href="classstk_1_1StkFrames.html#ec7ef9c46675a24111aa6e2fda3ba870" title="Return the number of channels represented by the data.">channels</a>() - nChannels;
<a name="l00209"></a>00209 <span class="keywordflow">for</span> ( <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> i=0; i&lt;frames.<a class="code" href="classstk_1_1StkFrames.html#05b1ab6fa750a8221a7d65c30e0cdab9" title="Return the number of sample frames represented by the data.">frames</a>(); i++, samples += hop ) {
<a name="l00210"></a>00210 <a class="code" href="classstk_1_1Voicer.html#3e504b3a6b896772b0f94a12faf0ee70" title="Mix one sample frame of all sounding voices and return the specified channel value...">tick</a>();
<a name="l00211"></a>00211 <span class="keywordflow">for</span> ( j=0; j&lt;nChannels; j++ )
<a name="l00212"></a>00212 *samples++ = lastFrame_[j];
<a name="l00213"></a>00213 }
<a name="l00214"></a>00214
<a name="l00215"></a>00215 <span class="keywordflow">return</span> frames;
<a name="l00216"></a>00216 }
<a name="l00217"></a>00217
<a name="l00218"></a>00218 } <span class="comment">// stk namespace</span>
<a name="l00219"></a>00219
<a name="l00220"></a>00220 <span class="preprocessor">#endif</span>
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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>
<tr><td>&copy;1995-2009 Perry R. Cook and Gary P. Scavone. All Rights Reserved.</td></tr>
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