mirror of
https://github.com/thestk/stk
synced 2026-01-11 20:11:52 +00:00
69 lines
1.6 KiB
C++
69 lines
1.6 KiB
C++
#ifndef STK_SAMPLER_H
|
|
#define STK_SAMPLER_H
|
|
|
|
#include "Instrmnt.h"
|
|
#include "ADSR.h"
|
|
#include "FileLoop.h"
|
|
#include "OnePole.h"
|
|
|
|
namespace stk {
|
|
|
|
/***************************************************/
|
|
/*! \class Sampler
|
|
\brief STK sampling synthesis abstract base class.
|
|
|
|
This instrument provides an ADSR envelope, a one-pole filter, and
|
|
structures for an arbitrary number of attack and looped files.
|
|
|
|
by Perry R. Cook and Gary P. Scavone, 1995 - 2010.
|
|
*/
|
|
/***************************************************/
|
|
|
|
class Sampler : public Instrmnt
|
|
{
|
|
public:
|
|
//! Default constructor.
|
|
Sampler( void );
|
|
|
|
//! Class destructor.
|
|
virtual ~Sampler( void );
|
|
|
|
//! Reset and clear all internal state.
|
|
void clear( void );
|
|
|
|
//! Set instrument parameters for a particular frequency.
|
|
virtual void setFrequency( StkFloat frequency ) = 0;
|
|
|
|
//! Initiate the envelopes with a key-on event and reset the attack waves.
|
|
void keyOn( void );
|
|
|
|
//! Signal a key-off event to the envelopes.
|
|
void keyOff( void );
|
|
|
|
//! Stop a note with the given amplitude (speed of decay).
|
|
virtual void noteOff( StkFloat amplitude );
|
|
|
|
//! Perform the control change specified by \e number and \e value (0.0 - 128.0).
|
|
virtual void controlChange( int number, StkFloat value ) = 0;
|
|
|
|
//! Compute and return one output sample.
|
|
virtual StkFloat tick( unsigned int channel = 0 ) = 0;
|
|
|
|
protected:
|
|
|
|
ADSR adsr_;
|
|
std::vector<FileWvIn *> attacks_;
|
|
std::vector<FileLoop *> loops_;
|
|
OnePole filter_;
|
|
StkFloat baseFrequency_;
|
|
std::vector<StkFloat> attackRatios_;
|
|
std::vector<StkFloat> loopRatios_;
|
|
StkFloat attackGain_;
|
|
StkFloat loopGain_;
|
|
|
|
};
|
|
|
|
} // stk namespace
|
|
|
|
#endif
|