1 files changed, 94 insertions, 0 deletions
diff --git a/plugins/gme/game-music-emu-0.6.0/gme/Hes_Emu.h b/plugins/gme/game-music-emu-0.6.0/gme/Hes_Emu.h
new file mode 100644
index 00000000..d17983c5
--- /dev/null
+++ b/plugins/gme/game-music-emu-0.6.0/gme/Hes_Emu.h
@@ -0,0 +1,94 @@
+// TurboGrafx-16/PC Engine HES music file emulator
+
+// Game_Music_Emu 0.5.5
+#ifndef HES_EMU_H
+#define HES_EMU_H
+
+#include "Classic_Emu.h"
+#include "Hes_Apu.h"
+#include "Hes_Cpu.h"
+
+class Hes_Emu : private Hes_Cpu, public Classic_Emu {
+	typedef Hes_Cpu cpu;
+public:
+	// HES file header
+	enum { header_size = 0x20 };
+	struct header_t
+	{
+		byte tag [4];
+		byte vers;
+		byte first_track;
+		byte init_addr [2];
+		byte banks [8];
+		byte data_tag [4];
+		byte size [4];
+		byte addr [4];
+		byte unused [4];
+	};
+	
+	// Header for currently loaded file
+	header_t const& header() const { return header_; }
+	
+	static gme_type_t static_type() { return gme_hes_type; }
+
+public:
+	Hes_Emu();
+	~Hes_Emu();
+protected:
+	blargg_err_t track_info_( track_info_t*, int track ) const;
+	blargg_err_t load_( Data_Reader& );
+	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& );
+	void unload();
+public: private: friend class Hes_Cpu;
+	byte* write_pages [page_count + 1]; // 0 if unmapped or I/O space
+	
+	int cpu_read_( hes_addr_t );
+	int cpu_read( hes_addr_t );
+	void cpu_write_( hes_addr_t, int data );
+	void cpu_write( hes_addr_t, int );
+	void cpu_write_vdp( int addr, int data );
+	byte const* cpu_set_mmr( int page, int bank );
+	int cpu_done();
+private:
+	Rom_Data<page_size> rom;
+	header_t header_;
+	hes_time_t play_period;
+	hes_time_t last_frame_hook;
+	int timer_base;
+	
+	struct {
+		hes_time_t last_time;
+		blargg_long count;
+		blargg_long load;
+		int raw_load;
+		byte enabled;
+		byte fired;
+	} timer;
+	
+	struct {
+		hes_time_t next_vbl;
+		byte latch;
+		byte control;
+	} vdp;
+	
+	struct {
+		hes_time_t timer;
+		hes_time_t vdp;
+		byte disables;
+	} irq;
+	
+	void recalc_timer_load();
+	
+	// large items
+	Hes_Apu apu;
+	byte sgx [3 * page_size + cpu_padding];
+	
+	void irq_changed();
+	void run_until( hes_time_t );
+};
+
+#endif