97 lines
2.2 KiB
C
97 lines
2.2 KiB
C
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//////////////////////////////////////////////////////////////////////////
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// //
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// FDS plugin //
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// Norix //
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// written 2001/09/18 //
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// last modify ----/--/-- //
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//////////////////////////////////////////////////////////////////////////
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#ifndef __FDSPLUGIN_INCLUDED__
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#define __FDSPLUGIN_INCLUDED__
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#define WIN32_LEAN_AND_MEAN
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#include "windows.h"
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#include "typedef.h"
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#include "macro.h"
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#include "APU_INTERFACE.h"
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class APU_FDS : public APU_INTERFACE
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{
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public:
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APU_FDS();
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~APU_FDS();
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void Reset( FLOAT fClock, INT nRate );
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void Setup( FLOAT fClock, INT nRate );
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void Write( WORD addr, BYTE data );
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BYTE Read ( WORD addr );
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INT Process( INT channel );
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void SyncWrite( WORD addr, BYTE data );
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BYTE SyncRead ( WORD addr );
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BOOL Sync( INT cycles );
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INT GetFreq( INT channel );
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INT GetStateSize();
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void SaveState( LPBYTE p );
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void LoadState( LPBYTE p );
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protected:
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typedef struct tagFDSSOUND {
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BYTE reg[0x80];
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BYTE volenv_mode; // Volume Envelope
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BYTE volenv_gain;
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BYTE volenv_decay;
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double volenv_phaseacc;
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BYTE swpenv_mode; // Sweep Envelope
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BYTE swpenv_gain;
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BYTE swpenv_decay;
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double swpenv_phaseacc;
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// For envelope unit
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BYTE envelope_enable; // $4083 bit6
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BYTE envelope_speed; // $408A
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// For $4089
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BYTE wave_setup; // bit7
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INT master_volume; // bit1-0
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// For Main unit
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INT main_wavetable[64];
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BYTE main_enable;
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INT main_frequency;
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INT main_addr;
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// For Effector(LFO) unit
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BYTE lfo_wavetable[64];
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BYTE lfo_enable; // 0:Enable 1:Wavetable setup
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INT lfo_frequency;
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INT lfo_addr;
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double lfo_phaseacc;
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// For Sweep unit
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INT sweep_bias;
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// Misc
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INT now_volume;
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INT now_freq;
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INT output;
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} FDSSOUND, *LPFDSSOUND;
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FDSSOUND fds;
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FDSSOUND fds_sync;
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INT sampling_rate;
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INT output_buf[8];
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// Write Sub
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void WriteSub( WORD addr, BYTE data, FDSSOUND& ch, double rate );
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private:
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};
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#endif // !__FDSPLUGIN_INCLUDED__
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