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718112a8fe
Currently none of these is being used, but eventually they will, once more code gets ported over. So it's better to have them right away and avoid editing the project file too much, only to revert that later.
69 lines
1.5 KiB
C++
69 lines
1.5 KiB
C++
// Sinclair Spectrum AY music file emulator
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// Game_Music_Emu https://bitbucket.org/mpyne/game-music-emu/
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#ifndef AY_EMU_H
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#define AY_EMU_H
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#include "Classic_Emu.h"
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#include "Ay_Apu.h"
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#include "Ay_Cpu.h"
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class Ay_Emu : private Ay_Cpu, public Classic_Emu {
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typedef Ay_Cpu cpu;
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public:
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// AY file header
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enum { header_size = 0x14 };
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struct header_t
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{
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byte tag [8];
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byte vers;
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byte player;
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byte unused [2];
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byte author [2];
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byte comment [2];
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byte max_track;
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byte first_track;
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byte track_info [2];
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};
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static gme_type_t static_type() { return gme_ay_type; }
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public:
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Ay_Emu();
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~Ay_Emu();
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struct file_t {
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header_t const* header;
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byte const* end;
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byte const* tracks;
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};
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protected:
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blargg_err_t track_info_( track_info_t*, int track ) const;
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blargg_err_t load_mem_( byte const*, long );
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blargg_err_t start_track_( int );
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blargg_err_t run_clocks( blip_time_t&, int );
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void set_tempo_( double );
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void set_voice( int, Blip_Buffer*, Blip_Buffer*, Blip_Buffer* );
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void update_eq( blip_eq_t const& );
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private:
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file_t file;
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cpu_time_t play_period;
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cpu_time_t next_play;
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Blip_Buffer* beeper_output;
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int beeper_delta;
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int last_beeper;
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int apu_addr;
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int cpc_latch;
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bool spectrum_mode;
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bool cpc_mode;
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// large items
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struct {
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byte padding1 [0x100];
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byte ram [0x10000 + 0x100];
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} mem;
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Ay_Apu apu;
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friend void ay_cpu_out( Ay_Cpu*, cpu_time_t, unsigned addr, int data );
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void cpu_out_misc( cpu_time_t, unsigned addr, int data );
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};
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#endif
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