cog/Frameworks/GME/gme/Ym2612_GENS.h

39 lines
966 B
C++

// YM2612 FM sound chip emulator interface
// Game_Music_Emu https://bitbucket.org/mpyne/game-music-emu/
#ifndef YM2612_EMU_H
#define YM2612_EMU_H
struct Ym2612_GENS_Impl;
class Ym2612_GENS_Emu {
Ym2612_GENS_Impl* impl;
public:
Ym2612_GENS_Emu() { impl = 0; }
~Ym2612_GENS_Emu();
// Set output sample rate and chip clock rates, in Hz. Returns non-zero
// if error.
const char* 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 = 6 };
void mute_voices( int mask );
// Write addr to register 0 then data to register 1
void write0( int addr, int data );
// Write addr to register 2 then data to register 3
void write1( int addr, int data );
// Run and add pair_count samples into current output buffer contents
typedef short sample_t;
enum { out_chan_count = 2 }; // stereo
void run( int pair_count, sample_t* out );
};
#endif