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// YM2413 FM sound chip emulator interface
// Game_Music_Emu 0.6-pre
#ifndef YM2413_EMU_H
#define YM2413_EMU_H
struct OPLL;
class Ym2413_Emu {
void* opll;
public:
Ym2413_Emu();
~Ym2413_Emu();
static bool supported() { return true; }
// Sets output sample rate and chip clock rates, in Hz. Returns non-zero
// if error.
int set_rate( double sample_rate, double clock_rate );
// Resets to power-up state
void reset();
// Mutes voice n if bit n (1 << n) of mask is set
enum { channel_count = 14 };
void mute_voices( int mask );
// Writes data to addr
void write( int addr, int data );
// Runs and writes pair_count*2 samples to output
typedef short sample_t;
enum { out_chan_count = 2 }; // stereo
void run( int pair_count, sample_t* out );
};
#endif
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