1 files changed, 82 insertions, 0 deletions
diff --git a/plugins/gme/game-music-emu-0.6.0/gme/Spc_Emu.h b/plugins/gme/game-music-emu-0.6.0/gme/Spc_Emu.h
new file mode 100644
index 00000000..ab034ad3
--- /dev/null
+++ b/plugins/gme/game-music-emu-0.6.0/gme/Spc_Emu.h
@@ -0,0 +1,82 @@
+// Super Nintendo SPC music file emulator
+
+// Game_Music_Emu 0.5.5
+#ifndef SPC_EMU_H
+#define SPC_EMU_H
+
+#include "Fir_Resampler.h"
+#include "Music_Emu.h"
+#include "Snes_Spc.h"
+#include "Spc_Filter.h"
+
+class Spc_Emu : public Music_Emu {
+public:
+	// The Super Nintendo hardware samples at 32kHz. Other sample rates are
+	// handled by resampling the 32kHz output; emulation accuracy is not affected.
+	enum { native_sample_rate = 32000 };
+	
+	// SPC file header
+	enum { header_size = 0x100 };
+	struct header_t
+	{
+		char tag [35];
+		byte format;
+		byte version;
+		byte pc [2];
+		byte a, x, y, psw, sp;
+		byte unused [2];
+		char song [32];
+		char game [32];
+		char dumper [16];
+		char comment [32];
+		byte date [11];
+		byte len_secs [3];
+		byte fade_msec [4];
+		char author [32]; // sometimes first char should be skipped (see official SPC spec)
+		byte mute_mask;
+		byte emulator;
+		byte unused2 [46];
+	};
+	
+	// Header for currently loaded file
+	header_t const& header() const { return *(header_t const*) file_data; }
+	
+	// Prevents channels and global volumes from being phase-negated
+	void disable_surround( bool disable = true );
+	
+	static gme_type_t static_type() { return gme_spc_type; }
+	
+public:
+	// deprecated
+	Music_Emu::load;
+	blargg_err_t load( header_t const& h, Data_Reader& in ) // use Remaining_Reader
+			{ return load_remaining_( &h, sizeof h, in ); }
+	byte const* trailer() const; // use track_info()
+	long trailer_size() const;
+
+public:
+	Spc_Emu();
+	~Spc_Emu();
+protected:
+	blargg_err_t load_mem_( byte const*, long );
+	blargg_err_t track_info_( track_info_t*, int track ) const;
+	blargg_err_t set_sample_rate_( long );
+	blargg_err_t start_track_( int );
+	blargg_err_t play_( long, sample_t* );
+	blargg_err_t skip_( long );
+	void mute_voices_( int );
+	void set_tempo_( double );
+	void enable_accuracy_( bool );
+private:
+	byte const* file_data;
+	long        file_size;
+	Fir_Resampler<24> resampler;
+	SPC_Filter filter;
+	Snes_Spc apu;
+	
+	blargg_err_t play_and_filter( long count, sample_t out [] );
+};
+
+inline void Spc_Emu::disable_surround( bool b ) { apu.disable_surround( b ); }
+
+#endif