Esidplay: 6581_.h Source File

00001 //
00002 // 6581_.h
00003 //
00004 #if !defined(__6581_H__)
00005 #define __6581_H__
00006 
00007 #include "opstruct.h"
00008 #include "epocglue.h"
00009 
00010 //
00011 // forward declarations
00012 //
00013 class emuEngine;
00014 class sidTune;
00015 class Mixer;
00016 class Envelope;
00017 class Sample;
00018 class C6510;
00019 
00020 
00025 class sidEmu
00026         {
00027 
00028         friend emuEngine;
00029         friend Mixer;
00030         friend Sample;
00031         
00032   public:
00033         sbyte waveCalcMute(struct sidOperator* pVoice);
00034         sbyte waveCalcNormal(struct sidOperator* pVoice);
00035         sbyte waveCalcRangeCheck(struct sidOperator* pVoice);
00036 
00037         void sidMode00(struct sidOperator* pVoice);
00038         void sidMode10(struct sidOperator* pVoice);
00039         void sidMode20(struct sidOperator* pVoice);
00040         void sidMode30(struct sidOperator* pVoice);
00041         void sidMode40(struct sidOperator* pVoice);
00042         void sidMode50(struct sidOperator* pVoice);
00043         void sidMode60(struct sidOperator* pVoice);
00044         void sidMode70(struct sidOperator* pVoice);
00045         void sidMode80(struct sidOperator* pVoice);
00046         void sidMode80hp(struct sidOperator* pVoice);
00047         void sidModeLock(struct sidOperator* pVoice);
00048         void sidMode14(struct sidOperator* pVoice);
00049         void sidMode34(struct sidOperator* pVoice);
00050         void sidMode54(struct sidOperator* pVoice);
00051         void sidMode74(struct sidOperator* pVoice);
00052 
00053   protected: // methods
00054         inline void noiseAdvance(struct sidOperator* pVoice);
00055         inline void noiseAdvanceHp(struct sidOperator* pVoice);
00056 
00057   public:
00058         sidEmu(emuEngine* aEmuEngine);
00059         virtual ~sidEmu();
00060         //
00061         inline void calcValuesPerCall();        
00062         void sidEmuSetReplayingSpeed(int clockMode, uword callsPerSec);
00063         inline void sidEmuSet(struct sidOperator* pVoice, uword sidIndex);
00064         inline void waveCalcFilter(struct sidOperator* pVoice);
00065         inline void sidEmuSet2(struct sidOperator* pVoice);
00066         void sidEmuFillBuffer(emuEngine& thisEmu, sidTune& thistune, void* buffer, udword bufferLen);
00067         bool sidEmuFastForwardReplay( int percent );
00068         void sidEmuConfigure(const struct emuConfig& aEmuConfig);
00069         
00070 //      void sidEmuConfigure(udword PCMfrequency, bool measuredEnveValues, bool isNewSID, bool emulateFilter, int clockSpeed);
00071         void initWaveformTables(bool isNewSID);
00072         bool sidEmuReset();
00073         void clearSidOperator( struct sidOperator* pVoice );
00074         void sidEmuResetAutoPanning(int autoPanning);
00075         void sidEmuSetVoiceVolume(int voice, uword leftLevel, uword rightLevel, uword total);
00076         uword sidEmuReturnVoiceVolume( int voice );
00077         
00078 
00079 // ------------ unknowns:
00080         
00081         void sidEmuUpdateReplayingSpeed();
00082 
00083 //  protected:
00084         void sidEmuChangeReplayingSpeed();
00085         void sidEmuSetClockSpeed(int clockMode);
00086 
00087   public:
00088         struct sidOperator optr1, optr2, optr3;
00089         uword voice4_gainLeft, voice4_gainRight; 
00090         udword splitBufferLen;                   
00091         
00092   private:
00093 
00094     // tables
00095         float filterTable[0x800];
00096         float bandPassParam[0x800];
00097         float filterResTable[16];
00098 
00099         ptr2sidVoidFunc sidModeNormalTable[16]; 
00100         ptr2sidVoidFunc sidModeRingTable[16];   
00101 
00102         float filterDy, filterResDy;
00103         float C64_fClockSpeed;      
00104 
00105         uword calls;                
00106         uword filterValue;
00107         uword apCount;
00108         uword fastForwardFactor;    
00109         uword  PCMfreq;
00110         udword sidtuneClockSpeed;   
00111         udword PCMsid;
00112         udword PCMsidNoise;
00113         udword C64_clockSpeed;      
00114 
00115         bool filterEnabled;
00116         bool updateAutoPanning;
00117         bool doAutoPanning;
00118 
00119         ubyte filterType;
00120         ubyte filterCurType;
00121 
00122 #if defined(DIRECT_FIXPOINT)
00123     cpuLword VALUES, VALUESadd, VALUESorg;
00124 #else
00125     uword VALUES, VALUESorg;
00126     udword VALUESadd, VALUEScomma;
00127 #endif
00128 
00129         uword toFill;
00130 
00131 #if defined(SIDEMU_TIME_COUNT)
00132         udword prevBufferLen;    // need for fast_forward time count
00133         udword scaledBufferLen;
00134 #endif
00135 
00136         uword defaultTimer;
00137         uword timer;
00138 
00139         Sample* iTheSampler; 
00140         
00141     // always pointer first:
00142         ubyte* triangleTable;
00143         ubyte* sawtoothTable;
00144         ubyte* squareTable;
00145         ubyte* waveform50;
00146 
00147 #if defined(LARGE_NOISE_TABLE)
00148         ubyte* noiseTableMSB;
00149         ubyte* noiseTableLSB;
00150 #else
00151         ubyte* noiseTableMSB;
00152         ubyte* noiseTableMID;
00153         ubyte* noiseTableLSB;
00154 #endif
00155 
00156         Envelope* iTheEnvelope;
00157         emuEngine* iTheEmuEngine;
00158         C6510* iThe6510;
00159         
00160         // these buffers are owned by C6510
00161         ubyte* c64mem1;       
00162         ubyte* c64mem2;       
00163 
00164         }; // end, class sidEmu
00165 
00166 
00167 #endif // __6581_H__