diff options
Diffstat (limited to 'gme/Ay_Emu.h')
-rw-r--r-- | gme/Ay_Emu.h | 70 |
1 files changed, 70 insertions, 0 deletions
diff --git a/gme/Ay_Emu.h b/gme/Ay_Emu.h new file mode 100644 index 00000000..ba8445d3 --- /dev/null +++ b/gme/Ay_Emu.h @@ -0,0 +1,70 @@ +// Sinclair Spectrum AY music file emulator + +// Game_Music_Emu 0.5.2 +#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; + + unsigned play_addr; + 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 |