1 files changed, 127 insertions, 0 deletions
diff --git a/plugins/gme/game-music-emu-0.6.0/gme/Classic_Emu.h b/plugins/gme/game-music-emu-0.6.0/gme/Classic_Emu.h
new file mode 100644
index 00000000..d0cfda25
--- /dev/null
+++ b/plugins/gme/game-music-emu-0.6.0/gme/Classic_Emu.h
@@ -0,0 +1,127 @@
+// Common aspects of emulators which use Blip_Buffer for sound output
+
+// Game_Music_Emu 0.5.5
+#ifndef CLASSIC_EMU_H
+#define CLASSIC_EMU_H
+
+#include "blargg_common.h"
+#include "Blip_Buffer.h"
+#include "Music_Emu.h"
+
+class Classic_Emu : public Music_Emu {
+public:
+	Classic_Emu();
+	~Classic_Emu();
+	void set_buffer( Multi_Buffer* );
+protected:
+	// Services
+	enum { wave_type = 0x100, noise_type = 0x200, mixed_type = wave_type | noise_type };
+	void set_voice_types( int const* t ) { voice_types = t; }
+	blargg_err_t setup_buffer( long clock_rate );
+	long clock_rate() const { return clock_rate_; }
+	void change_clock_rate( long ); // experimental
+	
+	// Overridable
+	virtual void set_voice( int index, Blip_Buffer* center,
+			Blip_Buffer* left, Blip_Buffer* right ) = 0;
+	virtual void update_eq( blip_eq_t const& ) = 0;
+	virtual blargg_err_t start_track_( int track ) = 0;
+	virtual blargg_err_t run_clocks( blip_time_t& time_io, int msec ) = 0;
+protected:
+	blargg_err_t set_sample_rate_( long sample_rate );
+	void mute_voices_( int );
+	void set_equalizer_( equalizer_t const& );
+	blargg_err_t play_( long, sample_t* );
+private:
+	Multi_Buffer* buf;
+	Multi_Buffer* stereo_buffer; // NULL if using custom buffer
+	long clock_rate_;
+	unsigned buf_changed_count;
+	int const* voice_types;
+};
+
+inline void Classic_Emu::set_buffer( Multi_Buffer* new_buf )
+{
+	assert( !buf && new_buf );
+	buf = new_buf;
+}
+
+// ROM data handler, used by several Classic_Emu derivitives. Loads file data
+// with padding on both sides, allowing direct use in bank mapping. The main purpose
+// is to allow all file data to be loaded with only one read() call (for efficiency).
+
+class Rom_Data_ {
+public:
+	typedef unsigned char byte;
+protected:
+	enum { pad_extra = 8 };
+	blargg_vector<byte> rom;
+	long file_size_;
+	blargg_long rom_addr;
+	blargg_long mask;
+	blargg_long size_; // TODO: eliminate
+	
+	blargg_err_t load_rom_data_( Data_Reader& in, int header_size, void* header_out,
+			int fill, long pad_size );
+	void set_addr_( long addr, int unit );
+};
+
+template<int unit>
+class Rom_Data : public Rom_Data_ {
+	enum { pad_size = unit + pad_extra };
+public:
+	// Load file data, using already-loaded header 'h' if not NULL. Copy header
+	// from loaded file data into *out and fill unmapped bytes with 'fill'.
+	blargg_err_t load( Data_Reader& in, int header_size, void* header_out, int fill )
+	{
+		return load_rom_data_( in, header_size, header_out, fill, pad_size );
+	}
+	
+	// Size of file data read in (excluding header)
+	long file_size() const { return file_size_; }
+	
+	// Pointer to beginning of file data
+	byte* begin() const { return rom.begin() + pad_size; }
+	
+	// Set address that file data should start at
+	void set_addr( long addr ) { set_addr_( addr, unit ); }
+	
+	// Free data
+	void clear() { rom.clear(); }
+	
+	// Size of data + start addr, rounded to a multiple of unit
+	long size() const { return size_; }
+	
+	// Pointer to unmapped page filled with same value
+	byte* unmapped() { return rom.begin(); }
+	
+	// Mask address to nearest power of two greater than size()
+	blargg_long mask_addr( blargg_long addr ) const
+	{
+		#ifdef check
+			check( addr <= mask );
+		#endif
+		return addr & mask;
+	}
+	
+	// Pointer to page starting at addr. Returns unmapped() if outside data.
+	byte* at_addr( blargg_long addr )
+	{
+		blargg_ulong offset = mask_addr( addr ) - rom_addr;
+		if ( offset > blargg_ulong (rom.size() - pad_size) )
+			offset = 0; // unmapped
+		return &rom [offset];
+	}
+};
+
+#ifndef GME_APU_HOOK
+	#define GME_APU_HOOK( emu, addr, data ) ((void) 0)
+#endif
+
+#ifndef GME_FRAME_HOOK
+	#define GME_FRAME_HOOK( emu ) ((void) 0)
+#else
+	#define GME_FRAME_HOOK_DEFINED 1
+#endif
+
+#endif