cog/Frameworks/GME/gme/Ymz280b_Emu.h

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2013-09-28 03:24:46 +00:00
// YMZ280B sound chip emulator interface
// Game_Music_Emu $vers
#ifndef YMZ280B_EMU_H
#define YMZ280B_EMU_H
class Ymz280b_Emu {
void* chip;
public:
Ymz280b_Emu();
~Ymz280b_Emu();
// Sets output sample rate and chip clock rates, in Hz. Returns non-zero
// if error.
int set_rate( int clock_rate );
// Resets to power-up state
void reset();
// Mutes voice n if bit n (1 << n) of mask is set
enum { channel_count = 8 };
void mute_voices( int mask );
// Writes data to addr
void write( int addr, int data );
// Scales ROM size, then writes length bytes from data at start offset
void write_rom( int size, int start, int length, void * 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