36 lines
690 B
C
36 lines
690 B
C
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// YM3812 FM sound chip emulator interface
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// Game_Music_Emu $vers
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#ifndef YM3812_EMU_H
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#define YM3812_EMU_H
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namespace DBOPL {
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struct Chip;
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}
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class Ym3812_Emu {
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DBOPL::Chip * opl;
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unsigned sample_rate;
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unsigned clock_rate;
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public:
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Ym3812_Emu();
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~Ym3812_Emu();
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// Sets output sample rate and chip clock rates, in Hz. Returns non-zero
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// if error.
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int set_rate( int sample_rate, int clock_rate );
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// Resets to power-up state
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void reset();
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// Writes data to addr
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void write( int addr, int data );
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// Runs and writes pair_count*2 samples to output
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typedef short sample_t;
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enum { out_chan_count = 2 }; // stereo
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void run( int pair_count, sample_t* out );
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};
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#endif
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