73 lines
1.7 KiB
C++
Executable file
73 lines
1.7 KiB
C++
Executable file
// Part of SAASound copyright 1998-2018 Dave Hooper <dave@beermex.com>
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//
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// SAAFreq.h: interface for the CSAAFreq class.
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// Note about Samplerates: 0=44100, 1=22050; 2=11025
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//
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//////////////////////////////////////////////////////////////////////
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#ifndef SAAFREQ_H_INCLUDE
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#define SAAFREQ_H_INCLUDE
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#include "defns.h"
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class CSAAFreq
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{
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private:
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#ifdef SAAFREQ_FIXED_CLOCKRATE
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// 'load in' the data for the static frequency lookup table
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// precomputed for a fixed clockrate
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// See: tools/freqdat.py
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const static unsigned long m_FreqTable[2048];
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#else
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// we'll calculate the frequency lookup table at runtime.
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unsigned long m_FreqTable[2048];
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unsigned long m_nClockRate;
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#endif
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unsigned long m_nCounter;
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unsigned long m_nAdd;
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unsigned long m_nCounter_low;
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unsigned int m_nOversample;
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unsigned long m_nCounterLimit_low;
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int m_nLevel;
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int m_nCurrentOffset;
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int m_nCurrentOctave;
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int m_nNextOffset;
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int m_nNextOctave;
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bool m_bIgnoreOffsetData;
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bool m_bNewData;
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bool m_bSync;
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unsigned long m_nSampleRate;
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CSAANoise * const m_pcConnectedNoiseGenerator;
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CSAAEnv * const m_pcConnectedEnvGenerator;
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const int m_nConnectedMode; // 0 = nothing; 1 = envgenerator; 2 = noisegenerator
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void UpdateOctaveOffsetData(void);
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void SetAdd(void);
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public:
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CSAAFreq(CSAANoise * const pcNoiseGenerator, CSAAEnv * const pcEnvGenerator);
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~CSAAFreq();
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void SetFreqOffset(BYTE nOffset);
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void SetFreqOctave(BYTE nOctave);
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void _SetSampleRate(unsigned int nSampleRate);
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void _SetOversample(unsigned int oversample);
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void _SetClockRate(int nClockRate);
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void Sync(bool bSync);
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int Tick(void);
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int Level(void) const;
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};
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inline int CSAAFreq::Level(void) const
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{
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if (m_bSync)
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return 1;
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return m_nLevel;
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}
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#endif // SAAFREQ_H_INCLUDE
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