1 files changed, 70 insertions, 0 deletions
diff --git a/plugins/gme/Game_Music_Emu-0.5.2/gme/Ay_Emu.h b/plugins/gme/Game_Music_Emu-0.5.2/gme/Ay_Emu.h
new file mode 100644
index 00000000..ba8445d3
--- /dev/null
+++ b/plugins/gme/Game_Music_Emu-0.5.2/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