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50 lines
1.5 KiB
C++
50 lines
1.5 KiB
C++
#ifndef STK_GENERATOR_H
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#define STK_GENERATOR_H
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#include "Stk.h"
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namespace stk {
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/***************************************************/
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/*! \class Generator
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\brief STK abstract unit generator parent class.
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This class provides limited common functionality for STK unit
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generator sample-source subclasses. It is general enough to
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support both monophonic and polyphonic output classes.
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by Perry R. Cook and Gary P. Scavone, 1995-2012.
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*/
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/***************************************************/
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class Generator : public Stk
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{
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public:
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//! Class constructor.
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Generator( void ) { lastFrame_.resize( 1, 1, 0.0 ); };
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//! Return the number of output channels for the class.
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unsigned int channelsOut( void ) const { return lastFrame_.channels(); };
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//! Return an StkFrames reference to the last output sample frame.
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const StkFrames& lastFrame( void ) const { return lastFrame_; };
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//! Fill the StkFrames object with computed sample frames, starting at the specified channel.
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/*!
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The \c channel argument plus the number of output channels must
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be less than the number of channels in the StkFrames argument (the
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first channel is specified by 0). However, range checking is only
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performed if _STK_DEBUG_ is defined during compilation, in which
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case an out-of-range value will trigger an StkError exception.
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*/
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virtual StkFrames& tick( StkFrames& frames, unsigned int channel = 0 ) = 0;
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protected:
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StkFrames lastFrame_;
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};
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} // stk namespace
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#endif
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