34 lines
754 B
C
34 lines
754 B
C
|
// YM2151 FM sound chip emulator interface
|
||
|
|
|
||
|
|
// Game_Music_Emu $vers
|
||
|
|
#ifndef YM2151_EMU_H
|
||
|
|
#define YM2151_EMU_H
|
||
|
|
|
||
|
|
class Ym2151_Emu {
|
||
|
|
void* PSG;
|
||
|
|
public:
|
||
|
|
Ym2151_Emu();
|
||
|
|
~Ym2151_Emu();
|
||
|
|
|
||
|
|
// 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 = 8 };
|
||
|
|
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
|