diff options
Diffstat (limited to 'plugins/gme/game-music-emu-0.5.5/gme/Nes_Namco_Apu.h')
-rw-r--r-- | plugins/gme/game-music-emu-0.5.5/gme/Nes_Namco_Apu.h | 102 |
1 files changed, 0 insertions, 102 deletions
diff --git a/plugins/gme/game-music-emu-0.5.5/gme/Nes_Namco_Apu.h b/plugins/gme/game-music-emu-0.5.5/gme/Nes_Namco_Apu.h deleted file mode 100644 index db5fea4b..00000000 --- a/plugins/gme/game-music-emu-0.5.5/gme/Nes_Namco_Apu.h +++ /dev/null @@ -1,102 +0,0 @@ -// Namco 106 sound chip emulator - -// Nes_Snd_Emu 0.1.8 -#ifndef NES_NAMCO_APU_H -#define NES_NAMCO_APU_H - -#include "blargg_common.h" -#include "Blip_Buffer.h" - -struct namco_state_t; - -class Nes_Namco_Apu { -public: - // See Nes_Apu.h for reference. - void volume( double ); - void treble_eq( const blip_eq_t& ); - void output( Blip_Buffer* ); - enum { osc_count = 8 }; - void osc_output( int index, Blip_Buffer* ); - void reset(); - void end_frame( blip_time_t ); - - // Read/write data register is at 0x4800 - enum { data_reg_addr = 0x4800 }; - void write_data( blip_time_t, int ); - int read_data(); - - // Write-only address register is at 0xF800 - enum { addr_reg_addr = 0xF800 }; - void write_addr( int ); - - // to do: implement save/restore - void save_state( namco_state_t* out ) const; - void load_state( namco_state_t const& ); - -public: - Nes_Namco_Apu(); - BLARGG_DISABLE_NOTHROW -private: - // noncopyable - Nes_Namco_Apu( const Nes_Namco_Apu& ); - Nes_Namco_Apu& operator = ( const Nes_Namco_Apu& ); - - struct Namco_Osc { - blargg_long delay; - Blip_Buffer* output; - short last_amp; - short wave_pos; - }; - - Namco_Osc oscs [osc_count]; - - blip_time_t last_time; - int addr_reg; - - enum { reg_count = 0x80 }; - BOOST::uint8_t reg [reg_count]; - Blip_Synth<blip_good_quality,15> synth; - - BOOST::uint8_t& access(); - void run_until( blip_time_t ); -}; -/* -struct namco_state_t -{ - BOOST::uint8_t regs [0x80]; - BOOST::uint8_t addr; - BOOST::uint8_t unused; - BOOST::uint8_t positions [8]; - BOOST::uint32_t delays [8]; -}; -*/ - -inline BOOST::uint8_t& Nes_Namco_Apu::access() -{ - int addr = addr_reg & 0x7F; - if ( addr_reg & 0x80 ) - addr_reg = (addr + 1) | 0x80; - return reg [addr]; -} - -inline void Nes_Namco_Apu::volume( double v ) { synth.volume( 0.10 / osc_count * v ); } - -inline void Nes_Namco_Apu::treble_eq( const blip_eq_t& eq ) { synth.treble_eq( eq ); } - -inline void Nes_Namco_Apu::write_addr( int v ) { addr_reg = v; } - -inline int Nes_Namco_Apu::read_data() { return access(); } - -inline void Nes_Namco_Apu::osc_output( int i, Blip_Buffer* buf ) -{ - assert( (unsigned) i < osc_count ); - oscs [i].output = buf; -} - -inline void Nes_Namco_Apu::write_data( blip_time_t time, int data ) -{ - run_until( time ); - access() = data; -} - -#endif |