1 // Nintendo Game Boy GBS music file emulator
2 
3 // Game_Music_Emu $vers
4 #ifndef GBS_EMU_H
5 #define GBS_EMU_H
6 
7 #include "Classic_Emu.h"
8 #include "Gbs_Core.h"
9 
10 class Gbs_Emu : public Classic_Emu {
11 public:
12 	// Equalizer profiles for Game Boy speaker and headphones
13 	static equalizer_t const handheld_eq;
14 	static equalizer_t const headphones_eq;
15 	static equalizer_t const cgb_eq; // Game Boy Color headphones have less bass
16 
17 	// GBS file header (see Gbs_Core.h)
18 	typedef Gbs_Core::header_t header_t;
19 
20 	// Header for currently loaded file
header()21 	header_t const& header() const { return core_.header(); }
22 
23 	// Selects which sound hardware to use. AGB hardware is cleaner than the
24 	// others. Doesn't take effect until next start_track().
25 	enum sound_t {
26 		sound_dmg = Gb_Apu::mode_dmg,   // Game Boy monochrome
27 		sound_cgb = Gb_Apu::mode_cgb,   // Game Boy Color
28 		sound_agb = Gb_Apu::mode_agb,   // Game Boy Advance
29 		sound_gbs                       // Use DMG/CGB based on GBS (default)
30 	};
set_sound(sound_t s)31 	void set_sound( sound_t s ) { sound_hardware = s; }
32 
33 	// If true, makes APU more accurate, which results in more clicking.
34 	void enable_clicking( bool enable = true ) { core_.apu().reduce_clicks( !enable ); }
35 
static_type()36 	static gme_type_t static_type() { return gme_gbs_type; }
37 
core()38 	Gbs_Core& core() { return core_; }
39 
40 	blargg_err_t hash_( Hash_Function& ) const;
41 
42 // Internal
43 public:
44 	Gbs_Emu();
45 	~Gbs_Emu();
46 
47 protected:
48 	// Overrides
49 	virtual blargg_err_t track_info_( track_info_t*, int track ) const;
50 	virtual blargg_err_t load_( Data_Reader& );
51 	virtual blargg_err_t start_track_( int );
52 	virtual blargg_err_t run_clocks( blip_time_t&, int );
53 	virtual void set_tempo_( double );
54 	virtual void set_voice( int, Blip_Buffer*, Blip_Buffer*, Blip_Buffer* );
55 	virtual void update_eq( blip_eq_t const& );
56 	virtual void unload();
57 
58 private:
59 	sound_t sound_hardware;
60 	Gbs_Core core_;
61 };
62 
63 #endif
64