64 lines
1.5 KiB
C
64 lines
1.5 KiB
C
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#ifndef OPL_APU_H
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#define OPL_APU_H
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#include "blargg_common.h"
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#include "Blip_Buffer.h"
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#include <stdio.h>
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class Opl_Apu {
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public:
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Opl_Apu();
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~Opl_Apu();
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enum type_t { type_opll = 0x10, type_msxmusic = 0x11, type_smsfmunit = 0x12,
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type_vrc7 = 0x13, type_opl = 0x20, type_msxaudio = 0x21, type_opl2 = 0x22 };
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blargg_err_t init( long clock, long rate, blip_time_t period, type_t );
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void reset();
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void volume( double v ) { synth.volume( 1.0 / (4096 * 6) * v ); }
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void treble_eq( blip_eq_t const& eq ) { synth.treble_eq( eq ); }
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enum { osc_count = 1 };
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void osc_output( int index, Blip_Buffer* );
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void set_output( int i, Blip_Buffer* buf, Blip_Buffer* = NULL, Blip_Buffer* = NULL ) { osc_output( 0, buf ); }
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void end_frame( blip_time_t );
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void write_addr( int data ) { addr = data; }
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void write_data( blip_time_t, int data );
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int read( blip_time_t, int port );
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static bool supported() { return true; }
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private:
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// noncopyable
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Opl_Apu( const Opl_Apu& );
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Opl_Apu& operator = ( const Opl_Apu& );
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Blip_Buffer* output_;
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type_t type_;
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void* opl;
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void* opl_memory;
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//FILE* logfile;
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unsigned char regs[ 0x100 ];
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blip_time_t next_time;
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int last_amp;
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int addr;
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long clock_;
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long rate_;
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blip_time_t period_;
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Blip_Synth_Fast synth;
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void run_until( blip_time_t );
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};
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inline void Opl_Apu::osc_output( int i, Blip_Buffer* buf )
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{
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assert( (unsigned) i < osc_count );
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output_ = buf;
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}
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#endif
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