Ym2413_Emu.h

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// YM2413 FM sound chip emulator interface
 
// Game_Music_Emu https://bitbucket.org/mpyne/game-music-emu/
#ifndef YM2413_EMU_H
#define YM2413_EMU_H
 
class Ym2413_Emu  {
        struct OPLL* opll;
public:
        Ym2413_Emu();
        ~Ym2413_Emu();
        
        // Set output sample rate and chip clock rates, in Hz. Returns non-zero
        // if error.
        int set_rate( double sample_rate, double clock_rate );
        
        // Reset to power-up state
        void reset();
        
        // Mute voice n if bit n (1 << n) of mask is set
        enum { channel_count = 14 };
        void mute_voices( int mask );
        
        // Write 'data' to 'addr'
        void write( int addr, int data );
        
        // Run and write pair_count samples to output
        typedef short sample_t;
        enum { out_chan_count = 2 }; // stereo
        void run( int pair_count, sample_t* out );
};
 
#endif