/usr/include/stk/Effect.h is in libstk0-dev 4.4.4-4.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 | #ifndef STK_EFFECT_H
#define STK_EFFECT_H
#include "Stk.h"
#include <cmath>
namespace stk {
/***************************************************/
/*! \class Effect
\brief STK abstract effects parent class.
This class provides common functionality for STK effects
subclasses. It is general enough to support both monophonic and
polyphonic input/output classes.
by Perry R. Cook and Gary P. Scavone, 1995-2012.
*/
/***************************************************/
class Effect : public Stk
{
public:
//! Class constructor.
Effect( void ) { lastFrame_.resize( 1, 1, 0.0 ); };
//! Return the number of output channels for the class.
unsigned int channelsOut( void ) const { return lastFrame_.channels(); };
//! Return an StkFrames reference to the last output sample frame.
const StkFrames& lastFrame( void ) const { return lastFrame_; };
//! Reset and clear all internal state.
virtual void clear() = 0;
//! Set the mixture of input and "effected" levels in the output (0.0 = input only, 1.0 = effect only).
virtual void setEffectMix( StkFloat mix );
protected:
// Returns true if argument value is prime.
bool isPrime( unsigned int number );
StkFrames lastFrame_;
StkFloat effectMix_;
};
inline void Effect :: setEffectMix( StkFloat mix )
{
if ( mix < 0.0 ) {
oStream_ << "Effect::setEffectMix: mix parameter is less than zero ... setting to zero!";
handleError( StkError::WARNING );
effectMix_ = 0.0;
}
else if ( mix > 1.0 ) {
oStream_ << "Effect::setEffectMix: mix parameter is greater than 1.0 ... setting to one!";
handleError( StkError::WARNING );
effectMix_ = 1.0;
}
else
effectMix_ = mix;
}
inline bool Effect :: isPrime( unsigned int number )
{
if ( number == 2 ) return true;
if ( number & 1 ) {
for ( int i=3; i<(int)sqrt((double)number)+1; i+=2 )
if ( (number % i) == 0 ) return false;
return true; // prime
}
else return false; // even
}
} // stk namespace
#endif
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