127 lines
2.7 KiB
C
127 lines
2.7 KiB
C
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//////////////////////////////////////////////////////////////////////////
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// //
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// NES APU core //
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// Norix //
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// written 2001/02/22 //
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// last modify ----/--/-- //
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//////////////////////////////////////////////////////////////////////////
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#ifndef __APU_INCLUDED__
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#define __APU_INCLUDED__
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#define WIN32_LEAN_AND_MEAN
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#include <windows.h>
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#include <math.h>
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#include "typedef.h"
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#include "macro.h"
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#include "APU_INTERNAL.h"
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#include "APU_VRC6.h"
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#include "APU_VRC7.h"
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#include "APU_MMC5.h"
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#include "APU_FDS.h"
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#include "APU_N106.h"
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#include "APU_FME7.h"
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#define QUEUE_LENGTH 4096
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// class prototype
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class NES;
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class APU
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{
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public:
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APU( NES* parent );
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virtual ~APU();
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void SoundSetup();
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void SelectExSound( BYTE data );
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BOOL SetChannelMute( INT nCH ) { m_bMute[nCH] = !m_bMute[nCH]; return m_bMute[nCH]; }
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void QueueClear();
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void Reset();
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BYTE Read( WORD addr );
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void Write( WORD addr, BYTE data );
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BYTE ExRead( WORD addr );
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void ExWrite( WORD addr, BYTE data );
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void Sync();
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void SyncDPCM( INT cycles );
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void Process( LPBYTE lpBuffer, DWORD dwSize );
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// For NSF player
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INT GetChannelFrequency( INT ch );
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LPSHORT GetSoundBuffer() { return m_SoundBuffer; }
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// For State
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void GetFrameIRQ( INT& Cycle, BYTE& Count, BYTE& Type, BYTE& IRQ, BYTE& Occur ) {
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internal.GetFrameIRQ( Cycle, Count, Type, IRQ, Occur );
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}
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void SetFrameIRQ( INT Cycle, BYTE Count, BYTE Type, BYTE IRQ, BYTE Occur ) {
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internal.SetFrameIRQ( Cycle, Count, Type, IRQ, Occur );
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}
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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 {
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INT time;
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WORD addr;
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BYTE data;
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BYTE reserved;
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} QUEUEDATA, *LPQUEUEDATA;
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typedef struct {
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INT rdptr;
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INT wrptr;
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QUEUEDATA data[QUEUE_LENGTH];
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} QUEUE, *LPQUEUE;
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void SetQueue( INT writetime, WORD addr, BYTE data );
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BOOL GetQueue( INT writetime, QUEUEDATA& ret );
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void SetExQueue( INT writetime, WORD addr, BYTE data );
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BOOL GetExQueue( INT writetime, QUEUEDATA& ret );
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void QueueFlush();
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void WriteProcess( WORD addr, BYTE data );
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void WriteExProcess( WORD addr, BYTE data );
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NES* nes;
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QUEUE queue;
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QUEUE exqueue;
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BYTE exsound_select;
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double elapsed_time;
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// INT elapsed_time;
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// Filter
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INT last_data, last_diff;
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INT lowpass_filter[4];
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// Sound core
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APU_INTERNAL internal;
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APU_VRC6 vrc6;
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APU_VRC7 vrc7;
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APU_MMC5 mmc5;
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APU_FDS fds;
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APU_N106 n106;
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APU_FME7 fme7;
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// Channel mute
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BOOL m_bMute[16];
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// <20><><EFBFBD>܂<EFBFBD>
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SHORT m_SoundBuffer[0x100];
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private:
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};
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#endif // !__APU_INCLUDED__
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