gzdoom/game-music-emu/gme/Ym2612_MAME.h

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2018-10-21 17:10:35 +00:00
// YM2612 FM sound chip emulator interface
// Game_Music_Emu https://bitbucket.org/mpyne/game-music-emu/
#ifndef YM2612_EMU_H
#define YM2612_EMU_H
typedef void Ym2612_MAME_Impl;
class Ym2612_MAME_Emu {
Ym2612_MAME_Impl* impl;
public:
Ym2612_MAME_Emu();
~Ym2612_MAME_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