mirror of
https://github.com/ZDoom/gzdoom.git
synced 2024-11-24 21:11:52 +00:00
69 lines
1.4 KiB
C++
69 lines
1.4 KiB
C++
// Sinclair Spectrum AY music file emulator
|
|
|
|
// Game_Music_Emu 0.6.0
|
|
#ifndef AY_EMU_H
|
|
#define AY_EMU_H
|
|
|
|
#include "Classic_Emu.h"
|
|
#include "Ay_Apu.h"
|
|
#include "Ay_Cpu.h"
|
|
|
|
class Ay_Emu : private Ay_Cpu, public Classic_Emu {
|
|
typedef Ay_Cpu cpu;
|
|
public:
|
|
// AY file header
|
|
enum { header_size = 0x14 };
|
|
struct header_t
|
|
{
|
|
byte tag [8];
|
|
byte vers;
|
|
byte player;
|
|
byte unused [2];
|
|
byte author [2];
|
|
byte comment [2];
|
|
byte max_track;
|
|
byte first_track;
|
|
byte track_info [2];
|
|
};
|
|
|
|
static gme_type_t static_type() { return gme_ay_type; }
|
|
public:
|
|
Ay_Emu();
|
|
~Ay_Emu();
|
|
struct file_t {
|
|
header_t const* header;
|
|
byte const* end;
|
|
byte const* tracks;
|
|
};
|
|
protected:
|
|
blargg_err_t track_info_( track_info_t*, int track ) const;
|
|
blargg_err_t load_mem_( byte const*, long );
|
|
blargg_err_t start_track_( int );
|
|
blargg_err_t run_clocks( blip_time_t&, int );
|
|
void set_tempo_( double );
|
|
void set_voice( int, Blip_Buffer*, Blip_Buffer*, Blip_Buffer* );
|
|
void update_eq( blip_eq_t const& );
|
|
private:
|
|
file_t file;
|
|
|
|
cpu_time_t play_period;
|
|
cpu_time_t next_play;
|
|
Blip_Buffer* beeper_output;
|
|
int beeper_delta;
|
|
int last_beeper;
|
|
int apu_addr;
|
|
int cpc_latch;
|
|
bool spectrum_mode;
|
|
bool cpc_mode;
|
|
|
|
// large items
|
|
struct {
|
|
byte padding1 [0x100];
|
|
byte ram [0x10000 + 0x100];
|
|
} mem;
|
|
Ay_Apu apu;
|
|
friend void ay_cpu_out( Ay_Cpu*, cpu_time_t, unsigned addr, int data );
|
|
void cpu_out_misc( cpu_time_t, unsigned addr, int data );
|
|
};
|
|
|
|
#endif
|