Updated Game_Music_Emu to support Game Boy DMG sound in VGM files
Chris Moeller
parent
0290c1a3dd
commit
4acbb21f99
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@ -161,6 +161,12 @@ void Gb_Apu::set_tempo( double t )
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frame_period = t ? blip_time_t (frame_period / t) : blip_time_t(0);
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}
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void Gb_Apu::set_hacks( unsigned int mask )
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{
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wave.set_volume_hack((mask & 1) != 0);
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noise.set_volume_hack((mask & 2) == 0);
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}
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Gb_Apu::Gb_Apu()
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{
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wave.wave_ram = ®s [wave_ram - io_addr];
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@ -187,6 +193,7 @@ Gb_Apu::Gb_Apu()
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set_tempo( 1.0 );
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volume_ = 1.0;
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reset();
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set_hacks(4);
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}
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void Gb_Apu::run_until_( blip_time_t end_time )
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@ -84,6 +84,11 @@ public:
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// Loads state. You should call reset() BEFORE this.
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blargg_err_t load_state( gb_apu_state_t const& in );
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// Enable hacks (bitmask):
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// 0x01 = Double wave channel volume
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// 0x02 = Low noise channel volume (disable doubling it)
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void set_hacks( unsigned int mask );
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private:
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// noncopyable
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Gb_Apu( const Gb_Apu& );
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@ -571,6 +571,7 @@ void Gb_Noise::run( blip_time_t time, blip_time_t end_time )
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Blip_Synth_Fast const* const synth = fast_synth; // cache
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// Output amplitude transitions
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if (volume_hack) vol <<= 1;
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int delta = -vol;
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do
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{
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@ -603,11 +604,11 @@ void Gb_Wave::run( blip_time_t time, blip_time_t end_time )
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#if GB_APU_NO_AGB
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static byte const shifts [4] = { 4+4, 0+4, 1+4, 2+4 };
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int const volume_idx = regs [2] >> 5 & 3;
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int const volume_shift = shifts [volume_idx];
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int const volume_shift = shifts [volume_idx] - (volume_hack ? 1 : 0);
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int const volume_mul = 1;
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#else
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static byte const volumes [8] = { 0, 4, 2, 1, 3, 3, 3, 3 };
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int const volume_shift = 2 + 4;
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int const volume_shift = 2 + 4 - (volume_hack ? 1 : 0);
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int const volume_idx = regs [2] >> 5 & (agb_mask | 3); // 2 bits on DMG/CGB, 3 on AGB
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int const volume_mul = volumes [volume_idx];
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#endif
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@ -114,6 +114,8 @@ class Gb_Noise : public Gb_Env {
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public:
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int divider; // noise has more complex frequency divider setup
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bool volume_hack;
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void run( blip_time_t, blip_time_t );
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void write_register( int frame_phase, int reg, int old_data, int data );
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@ -123,7 +125,11 @@ public:
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divider = 0;
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Gb_Env::reset();
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delay = 4 * clk_mul; // TODO: remove?
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volume_hack = true;
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}
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void set_volume_hack( bool enable );
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private:
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enum { period2_mask = 0x1FFFF };
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@ -132,9 +138,13 @@ private:
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unsigned lfsr_mask() const { return (regs [3] & 0x08) ? ~0x4040 : ~0x4000; }
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};
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inline void Gb_Noise::set_volume_hack( bool enable ) { volume_hack = enable; }
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class Gb_Wave : public Gb_Osc {
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public:
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int sample_buf; // last wave RAM byte read (hardware has this as well)
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bool volume_hack;
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void write_register( int frame_phase, int reg, int old_data, int data );
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void run( blip_time_t, blip_time_t );
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@ -147,6 +157,7 @@ public:
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{
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sample_buf = 0;
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Gb_Osc::reset();
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volume_hack = false;
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}
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private:
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@ -165,6 +176,8 @@ private:
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int dac_enabled() const { return regs [0] & 0x80; }
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void corrupt_wave();
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void set_volume_hack( bool enable );
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BOOST::uint8_t* wave_bank() const { return &wave_ram [(~regs [0] & bank40_mask) >> 2 & agb_mask]; }
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@ -172,6 +185,8 @@ private:
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int access( int addr ) const;
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};
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inline void Gb_Wave::set_volume_hack( bool enable ) { volume_hack = enable; }
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inline int Gb_Wave::read( int addr ) const
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{
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int index = access( addr );
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@ -1,17 +1,17 @@
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// Game_Music_Emu $vers. http://www.slack.net/~ant/
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#include "Gbs_Emu.h"
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/* Copyright (C) 2003-2009 Shay Green. This module is free software; you
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can redistribute it and/or modify it under the terms of the GNU Lesser
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General Public License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version. This
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module is distributed in the hope that it will be useful, but WITHOUT ANY
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WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
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FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more
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details. You should have received a copy of the GNU Lesser General Public
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License along with this module; if not, write to the Free Software Foundation,
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Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA */
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// Game_Music_Emu $vers. http://www.slack.net/~ant/
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#include "Gbs_Emu.h"
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/* Copyright (C) 2003-2009 Shay Green. This module is free software; you
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can redistribute it and/or modify it under the terms of the GNU Lesser
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General Public License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version. This
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module is distributed in the hope that it will be useful, but WITHOUT ANY
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WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
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FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more
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details. You should have received a copy of the GNU Lesser General Public
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License along with this module; if not, write to the Free Software Foundation,
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Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA */
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#include "blargg_source.h"
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@ -21,11 +21,11 @@ Gbs_Emu::equalizer_t const Gbs_Emu::headphones_eq = { 0.0, 30, 0,0,0,0,0,0,0
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Gbs_Emu::Gbs_Emu()
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{
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sound_hardware = sound_gbs;
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enable_clicking( false );
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set_type( gme_gbs_type );
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set_silence_lookahead( 6 );
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set_max_initial_silence( 21 );
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sound_hardware = sound_gbs;
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enable_clicking( false );
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set_type( gme_gbs_type );
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set_silence_lookahead( 6 );
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set_max_initial_silence( 21 );
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set_gain( 1.2 );
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// kind of midway between headphones and speaker
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@ -33,135 +33,135 @@ Gbs_Emu::Gbs_Emu()
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set_equalizer( eq );
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}
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Gbs_Emu::~Gbs_Emu() { }
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void Gbs_Emu::unload()
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{
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core_.unload();
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Music_Emu::unload();
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}
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// Track info
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static void copy_gbs_fields( Gbs_Emu::header_t const& h, track_info_t* out )
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{
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GME_COPY_FIELD( h, out, game );
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GME_COPY_FIELD( h, out, author );
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GME_COPY_FIELD( h, out, copyright );
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}
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static void hash_gbs_file( Gbs_Emu::header_t const& h, byte const* data, int data_size, Music_Emu::Hash_Function& out )
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{
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out.hash_( &h.vers, sizeof(h.vers) );
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out.hash_( &h.track_count, sizeof(h.track_count) );
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out.hash_( &h.first_track, sizeof(h.first_track) );
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out.hash_( &h.load_addr[0], sizeof(h.load_addr) );
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out.hash_( &h.init_addr[0], sizeof(h.init_addr) );
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out.hash_( &h.play_addr[0], sizeof(h.play_addr) );
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out.hash_( &h.stack_ptr[0], sizeof(h.stack_ptr) );
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out.hash_( &h.timer_modulo, sizeof(h.timer_modulo) );
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out.hash_( &h.timer_mode, sizeof(h.timer_mode) );
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out.hash_( data, data_size );
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}
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blargg_err_t Gbs_Emu::track_info_( track_info_t* out, int ) const
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{
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copy_gbs_fields( header(), out );
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return blargg_ok;
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}
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struct Gbs_File : Gme_Info_
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{
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Gbs_Emu::header_t const* h;
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Gbs_File() { set_type( gme_gbs_type ); }
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blargg_err_t load_mem_( byte const begin [], int size )
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{
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h = ( Gbs_Emu::header_t * ) begin;
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set_track_count( h->track_count );
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if ( !h->valid_tag() )
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return blargg_err_file_type;
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return blargg_ok;
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}
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blargg_err_t track_info_( track_info_t* out, int ) const
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{
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copy_gbs_fields( Gbs_Emu::header_t( *h ), out );
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return blargg_ok;
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}
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blargg_err_t hash_( Hash_Function& out ) const
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{
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hash_gbs_file( *h, file_begin() + h->size, file_end() - file_begin() - h->size, out );
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return blargg_ok;
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}
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};
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static Music_Emu* new_gbs_emu () { return BLARGG_NEW Gbs_Emu ; }
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static Music_Emu* new_gbs_file() { return BLARGG_NEW Gbs_File; }
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gme_type_t_ const gme_gbs_type [1] = {{ "Game Boy", 0, &new_gbs_emu, &new_gbs_file, "GBS", 1 }};
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// Setup
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blargg_err_t Gbs_Emu::load_( Data_Reader& in )
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{
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RETURN_ERR( core_.load( in ) );
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set_warning( core_.warning() );
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set_track_count( header().track_count );
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set_voice_count( Gb_Apu::osc_count );
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core_.apu().volume( gain() );
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static const char* const names [Gb_Apu::osc_count] = {
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"Square 1", "Square 2", "Wave", "Noise"
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};
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set_voice_names( names );
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static int const types [Gb_Apu::osc_count] = {
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wave_type+1, wave_type+2, wave_type+3, mixed_type+1
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};
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set_voice_types( types );
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return setup_buffer( 4194304 );
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}
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void Gbs_Emu::update_eq( blip_eq_t const& eq )
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{
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core_.apu().treble_eq( eq );
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}
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void Gbs_Emu::set_voice( int i, Blip_Buffer* c, Blip_Buffer* l, Blip_Buffer* r )
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{
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core_.apu().set_output( i, c, l, r );
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}
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void Gbs_Emu::set_tempo_( double t )
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{
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core_.set_tempo( t );
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}
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blargg_err_t Gbs_Emu::start_track_( int track )
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{
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sound_t mode = sound_hardware;
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if ( mode == sound_gbs )
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mode = (header().timer_mode & 0x80) ? sound_cgb : sound_dmg;
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RETURN_ERR( core_.start_track( track, (Gb_Apu::mode_t) mode ) );
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// clear buffer AFTER track is started, eliminating initial click
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return Classic_Emu::start_track_( track );
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}
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blargg_err_t Gbs_Emu::run_clocks( blip_time_t& duration, int )
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{
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return core_.end_frame( duration );
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}
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blargg_err_t Gbs_Emu::hash_( Hash_Function& out ) const
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{
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hash_gbs_file( header(), core_.rom_().begin(), core_.rom_().file_size(), out );
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return blargg_ok;
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Gbs_Emu::~Gbs_Emu() { }
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void Gbs_Emu::unload()
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{
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core_.unload();
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Music_Emu::unload();
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}
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// Track info
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static void copy_gbs_fields( Gbs_Emu::header_t const& h, track_info_t* out )
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{
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GME_COPY_FIELD( h, out, game );
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GME_COPY_FIELD( h, out, author );
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GME_COPY_FIELD( h, out, copyright );
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}
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static void hash_gbs_file( Gbs_Emu::header_t const& h, byte const* data, int data_size, Music_Emu::Hash_Function& out )
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{
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out.hash_( &h.vers, sizeof(h.vers) );
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out.hash_( &h.track_count, sizeof(h.track_count) );
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out.hash_( &h.first_track, sizeof(h.first_track) );
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out.hash_( &h.load_addr[0], sizeof(h.load_addr) );
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out.hash_( &h.init_addr[0], sizeof(h.init_addr) );
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out.hash_( &h.play_addr[0], sizeof(h.play_addr) );
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out.hash_( &h.stack_ptr[0], sizeof(h.stack_ptr) );
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out.hash_( &h.timer_modulo, sizeof(h.timer_modulo) );
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out.hash_( &h.timer_mode, sizeof(h.timer_mode) );
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out.hash_( data, data_size );
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}
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blargg_err_t Gbs_Emu::track_info_( track_info_t* out, int ) const
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{
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copy_gbs_fields( header(), out );
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return blargg_ok;
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}
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struct Gbs_File : Gme_Info_
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{
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Gbs_Emu::header_t const* h;
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Gbs_File() { set_type( gme_gbs_type ); }
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blargg_err_t load_mem_( byte const begin [], int size )
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{
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h = ( Gbs_Emu::header_t * ) begin;
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set_track_count( h->track_count );
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if ( !h->valid_tag() )
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return blargg_err_file_type;
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return blargg_ok;
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}
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blargg_err_t track_info_( track_info_t* out, int ) const
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{
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copy_gbs_fields( Gbs_Emu::header_t( *h ), out );
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return blargg_ok;
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}
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blargg_err_t hash_( Hash_Function& out ) const
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{
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hash_gbs_file( *h, file_begin() + h->size, file_end() - file_begin() - h->size, out );
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return blargg_ok;
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}
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};
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static Music_Emu* new_gbs_emu () { return BLARGG_NEW Gbs_Emu ; }
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static Music_Emu* new_gbs_file() { return BLARGG_NEW Gbs_File; }
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gme_type_t_ const gme_gbs_type [1] = {{ "Game Boy", 0, &new_gbs_emu, &new_gbs_file, "GBS", 1 }};
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// Setup
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blargg_err_t Gbs_Emu::load_( Data_Reader& in )
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{
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RETURN_ERR( core_.load( in ) );
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set_warning( core_.warning() );
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set_track_count( header().track_count );
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set_voice_count( Gb_Apu::osc_count );
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core_.apu().volume( gain() );
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static const char* const names [Gb_Apu::osc_count] = {
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"Square 1", "Square 2", "Wave", "Noise"
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};
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set_voice_names( names );
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static int const types [Gb_Apu::osc_count] = {
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wave_type+1, wave_type+2, wave_type+3, mixed_type+1
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};
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set_voice_types( types );
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return setup_buffer( 4194304 );
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}
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void Gbs_Emu::update_eq( blip_eq_t const& eq )
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{
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core_.apu().treble_eq( eq );
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}
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void Gbs_Emu::set_voice( int i, Blip_Buffer* c, Blip_Buffer* l, Blip_Buffer* r )
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{
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core_.apu().set_output( i, c, l, r );
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}
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void Gbs_Emu::set_tempo_( double t )
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{
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core_.set_tempo( t );
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}
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blargg_err_t Gbs_Emu::start_track_( int track )
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{
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sound_t mode = sound_hardware;
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if ( mode == sound_gbs )
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mode = (header().timer_mode & 0x80) ? sound_cgb : sound_dmg;
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RETURN_ERR( core_.start_track( track, (Gb_Apu::mode_t) mode ) );
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// clear buffer AFTER track is started, eliminating initial click
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return Classic_Emu::start_track_( track );
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}
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blargg_err_t Gbs_Emu::run_clocks( blip_time_t& duration, int )
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{
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return core_.end_frame( duration );
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}
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blargg_err_t Gbs_Emu::hash_( Hash_Function& out ) const
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{
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hash_gbs_file( header(), core_.rom_().begin(), core_.rom_().file_size(), out );
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return blargg_ok;
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}
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File diff suppressed because it is too large
Load Diff
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@ -1,346 +1,353 @@
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|||
// Sega VGM music file emulator core
|
||||
|
||||
// Game_Music_Emu $vers
|
||||
#ifndef VGM_CORE_H
|
||||
#define VGM_CORE_H
|
||||
|
||||
#include "Gme_Loader.h"
|
||||
#include "Ymz280b_Emu.h"
|
||||
#include "Ymf262_Emu.h"
|
||||
#include "Ym2612_Emu.h"
|
||||
#include "Ym2610b_Emu.h"
|
||||
#include "Ym2608_Emu.h"
|
||||
#include "Ym3812_Emu.h"
|
||||
#include "Ym2413_Emu.h"
|
||||
#include "Ym2151_Emu.h"
|
||||
#include "C140_Emu.h"
|
||||
#include "SegaPcm_Emu.h"
|
||||
#include "Rf5C68_Emu.h"
|
||||
#include "Rf5C164_Emu.h"
|
||||
#include "Pwm_Emu.h"
|
||||
#include "Okim6258_Emu.h"
|
||||
#include "Okim6295_Emu.h"
|
||||
#include "K051649_Emu.h"
|
||||
#include "K053260_Emu.h"
|
||||
#include "K054539_Emu.h"
|
||||
#include "Qsound_Apu.h"
|
||||
#include "Ym2203_Emu.h"
|
||||
#include "Ay_Apu.h"
|
||||
#include "Hes_Apu.h"
|
||||
#include "Sms_Apu.h"
|
||||
#include "Multi_Buffer.h"
|
||||
#include "Chip_Resampler.h"
|
||||
|
||||
template<class Emu>
|
||||
class Chip_Emu : public Emu {
|
||||
int last_time;
|
||||
short* out;
|
||||
enum { disabled_time = -1 };
|
||||
public:
|
||||
Chip_Emu() { last_time = disabled_time; out = NULL; }
|
||||
void enable( bool b = true ) { last_time = b ? 0 : disabled_time; }
|
||||
bool enabled() const { return last_time != disabled_time; }
|
||||
void begin_frame( short* buf ) { out = buf; last_time = 0; }
|
||||
|
||||
int run_until( int time )
|
||||
{
|
||||
int count = time - last_time;
|
||||
if ( count > 0 )
|
||||
{
|
||||
if ( last_time < 0 )
|
||||
return false;
|
||||
last_time = time;
|
||||
short* p = out;
|
||||
out += count * Emu::out_chan_count;
|
||||
Emu::run( count, p );
|
||||
}
|
||||
return true;
|
||||
}
|
||||
};
|
||||
|
||||
class Vgm_Core : public Gme_Loader {
|
||||
public:
|
||||
|
||||
// VGM file header
|
||||
struct header_t
|
||||
{
|
||||
enum { size_min = 0x40 };
|
||||
enum { size_151 = 0x80 };
|
||||
enum { size_max = 0xC0 };
|
||||
|
||||
char tag [4]; // 0x00
|
||||
byte data_size [4]; // 0x04
|
||||
byte version [4]; // 0x08
|
||||
byte psg_rate [4]; // 0x0C
|
||||
byte ym2413_rate [4]; // 0x10
|
||||
byte gd3_offset [4]; // 0x14
|
||||
byte track_duration [4]; // 0x18
|
||||
byte loop_offset [4]; // 0x1C
|
||||
byte loop_duration [4]; // 0x20
|
||||
byte frame_rate [4]; // 0x24 v1.01 V
|
||||
byte noise_feedback [2]; // 0x28 v1.10 V
|
||||
byte noise_width; // 0x2A
|
||||
byte sn76489_flags; // 0x2B v1.51 <
|
||||
byte ym2612_rate [4]; // 0x2C v1.10 V
|
||||
byte ym2151_rate [4]; // 0x30
|
||||
byte data_offset [4]; // 0x34 v1.50 V
|
||||
byte segapcm_rate [4]; // 0x38 v1.51 V
|
||||
byte segapcm_reg [4]; // 0x3C
|
||||
byte rf5c68_rate [4]; // 0x40
|
||||
byte ym2203_rate [4]; // 0x44
|
||||
byte ym2608_rate [4]; // 0x48
|
||||
byte ym2610_rate [4]; // 0x4C
|
||||
byte ym3812_rate [4]; // 0x50
|
||||
byte ym3526_rate [4]; // 0x54
|
||||
byte y8950_rate [4]; // 0x58
|
||||
byte ymf262_rate [4]; // 0x5C
|
||||
byte ymf278b_rate [4]; // 0x60
|
||||
byte ymf271_rate [4]; // 0x64
|
||||
byte ymz280b_rate [4]; // 0x68
|
||||
byte rf5c164_rate [4]; // 0x6C
|
||||
byte pwm_rate [4]; // 0x70
|
||||
byte ay8910_rate [4]; // 0x74
|
||||
byte ay8910_type; // 0x78
|
||||
byte ay8910_flags; // 0x79
|
||||
byte ym2203_ay8910_flags;// 0x7A
|
||||
byte ym2608_ay8910_flags;// 0x7B
|
||||
byte volume_modifier; // 0x7C v1.60 V
|
||||
byte reserved; // 0x7D
|
||||
byte loop_base; // 0x7E
|
||||
byte loop_modifier; // 0x7F v1.51 <
|
||||
byte gbdmg_rate [4]; // 0x80 v1.61 V
|
||||
byte nesapu_rate [4]; // 0x84
|
||||
byte multipcm_rate [4]; // 0x88
|
||||
byte upd7759_rate [4]; // 0x8C
|
||||
byte okim6258_rate [4]; // 0x90
|
||||
byte okim6258_flags; // 0x94
|
||||
byte k054539_flags; // 0x95
|
||||
byte c140_type; // 0x96
|
||||
byte reserved_flags; // 0x97
|
||||
byte okim6295_rate [4]; // 0x98
|
||||
byte k051649_rate [4]; // 0x9C
|
||||
byte k054539_rate [4]; // 0xA0
|
||||
byte huc6280_rate [4]; // 0xA4
|
||||
byte c140_rate [4]; // 0xA8
|
||||
byte k053260_rate [4]; // 0xAC
|
||||
byte pokey_rate [4]; // 0xB0
|
||||
byte qsound_rate [4]; // 0xB4
|
||||
byte reserved2 [4]; // 0xB8
|
||||
byte extra_offset [4]; // 0xBC
|
||||
|
||||
// True if header has valid file signature
|
||||
bool valid_tag() const;
|
||||
int size() const;
|
||||
void cleanup();
|
||||
};
|
||||
|
||||
// Header for currently loaded file
|
||||
header_t const& header() const { return _header; }
|
||||
|
||||
// Raw file data, for parsing GD3 tags
|
||||
byte const* file_begin() const { return Gme_Loader::file_begin(); }
|
||||
byte const* file_end () const { return Gme_Loader::file_end(); }
|
||||
|
||||
// If file uses FM, initializes FM sound emulator using *sample_rate. If
|
||||
// *sample_rate is zero, sets *sample_rate to the proper accurate rate and
|
||||
// uses that. The output of the FM sound emulator is resampled to the
|
||||
// final sampling rate.
|
||||
blargg_err_t init_chips( double* fm_rate, bool reinit = false );
|
||||
|
||||
// True if any FM chips are used by file. Always false until init_fm()
|
||||
// is called.
|
||||
bool uses_fm() const { return ym2612[0].enabled() || ym2413[0].enabled() || ym2151[0].enabled() || c140.enabled() ||
|
||||
segapcm.enabled() || rf5c68.enabled() || rf5c164.enabled() || pwm.enabled() || okim6258[0].enabled() || okim6295[0].enabled() ||
|
||||
k051649.enabled() || k053260.enabled() || k054539.enabled() || ym2203[0].enabled() || ym3812[0].enabled() || ymf262[0].enabled() ||
|
||||
ymz280b.enabled() || ym2610[0].enabled() || ym2608[0].enabled() || qsound[0].enabled() ||
|
||||
(header().ay8910_rate[0] | header().ay8910_rate[1] | header().ay8910_rate[2] | header().ay8910_rate[3]) ||
|
||||
(header().huc6280_rate[0] | header().huc6280_rate[1] | header().huc6280_rate[2] | header().huc6280_rate[3]); }
|
||||
|
||||
// Adjusts music tempo, where 1.0 is normal. Can be changed while playing.
|
||||
// Loading a file resets tempo to 1.0.
|
||||
void set_tempo( double );
|
||||
|
||||
void set_sample_rate( int r ) { sample_rate = r; }
|
||||
|
||||
// Starts track
|
||||
void start_track();
|
||||
|
||||
// Runs PSG-only VGM for msec and returns number of clocks it ran for
|
||||
blip_time_t run_psg( int msec );
|
||||
|
||||
// Plays FM for at most count samples into *out, and returns number of
|
||||
// samples actually generated (always even). Also runs PSG for blip_time.
|
||||
int play_frame( blip_time_t blip_time, int count, blip_sample_t out [] );
|
||||
|
||||
// True if all of file data has been played
|
||||
bool track_ended() const { return pos >= file_end(); }
|
||||
|
||||
// 0 for PSG and YM2612 DAC, 1 for AY, 2 for HuC6280
|
||||
Stereo_Buffer stereo_buf[3];
|
||||
|
||||
// PCM sound is always generated here
|
||||
Blip_Buffer * blip_buf[2];
|
||||
|
||||
// PSG sound chips, for assigning to Blip_Buffer, and setting volume and EQ
|
||||
Sms_Apu psg[2];
|
||||
Ay_Apu ay[2];
|
||||
Hes_Apu huc6280[2];
|
||||
|
||||
// PCM synth, for setting volume and EQ
|
||||
Blip_Synth_Fast pcm;
|
||||
|
||||
// FM sound chips
|
||||
Chip_Resampler_Emu<Ymf262_Emu> ymf262[2];
|
||||
Chip_Resampler_Emu<Ym3812_Emu> ym3812[2];
|
||||
Chip_Resampler_Emu<Ym2612_Emu> ym2612[2];
|
||||
Chip_Resampler_Emu<Ym2610b_Emu> ym2610[2];
|
||||
Chip_Resampler_Emu<Ym2608_Emu> ym2608[2];
|
||||
Chip_Resampler_Emu<Ym2413_Emu> ym2413[2];
|
||||
Chip_Resampler_Emu<Ym2151_Emu> ym2151[2];
|
||||
Chip_Resampler_Emu<Ym2203_Emu> ym2203[2];
|
||||
|
||||
// PCM sound chips
|
||||
Chip_Resampler_Emu<C140_Emu> c140;
|
||||
Chip_Resampler_Emu<SegaPcm_Emu> segapcm;
|
||||
Chip_Resampler_Emu<Rf5C68_Emu> rf5c68;
|
||||
Chip_Resampler_Emu<Rf5C164_Emu> rf5c164;
|
||||
Chip_Resampler_Emu<Pwm_Emu> pwm;
|
||||
Chip_Resampler_Emu<Okim6258_Emu> okim6258[2]; int okim6258_hz[2];
|
||||
Chip_Resampler_Emu<Okim6295_Emu> okim6295[2]; int okim6295_hz;
|
||||
Chip_Resampler_Emu<K051649_Emu> k051649;
|
||||
Chip_Resampler_Emu<K053260_Emu> k053260;
|
||||
Chip_Resampler_Emu<K054539_Emu> k054539;
|
||||
Chip_Resampler_Emu<Ymz280b_Emu> ymz280b; int ymz280b_hz;
|
||||
Chip_Resampler_Emu<Qsound_Apu> qsound[2];
|
||||
|
||||
// DAC control
|
||||
typedef struct daccontrol_data
|
||||
{
|
||||
bool Enable;
|
||||
byte Bank;
|
||||
} DACCTRL_DATA;
|
||||
|
||||
byte DacCtrlUsed;
|
||||
byte DacCtrlUsg[0xFF];
|
||||
DACCTRL_DATA DacCtrl[0xFF];
|
||||
byte DacCtrlMap[0xFF];
|
||||
int DacCtrlTime[0xFF];
|
||||
void ** dac_control;
|
||||
|
||||
void dac_control_grow(byte chip_id);
|
||||
|
||||
int dac_control_recursion;
|
||||
|
||||
int run_dac_control( int time );
|
||||
|
||||
public:
|
||||
void chip_reg_write(unsigned Sample, byte ChipType, byte ChipID, byte Port, byte Offset, byte Data);
|
||||
|
||||
// Implementation
|
||||
public:
|
||||
Vgm_Core();
|
||||
~Vgm_Core();
|
||||
|
||||
protected:
|
||||
virtual blargg_err_t load_mem_( byte const [], int );
|
||||
|
||||
private:
|
||||
// blip_time_t // PSG clocks
|
||||
typedef int vgm_time_t; // 44100 per second, REGARDLESS of sample rate
|
||||
typedef int fm_time_t; // FM sample count
|
||||
|
||||
int sample_rate;
|
||||
int vgm_rate; // rate of log, 44100 normally, adjusted by tempo
|
||||
double fm_rate; // FM samples per second
|
||||
|
||||
header_t _header;
|
||||
|
||||
// VGM to FM time
|
||||
int fm_time_factor;
|
||||
int fm_time_offset;
|
||||
fm_time_t to_fm_time( vgm_time_t ) const;
|
||||
|
||||
// VGM to PSG time
|
||||
int blip_time_factor;
|
||||
blip_time_t to_psg_time( vgm_time_t ) const;
|
||||
|
||||
int blip_ay_time_factor;
|
||||
int ay_time_offset;
|
||||
blip_time_t to_ay_time( vgm_time_t ) const;
|
||||
|
||||
int blip_huc6280_time_factor;
|
||||
int huc6280_time_offset;
|
||||
blip_time_t to_huc6280_time( vgm_time_t ) const;
|
||||
|
||||
// Current time and position in log
|
||||
vgm_time_t vgm_time;
|
||||
byte const* pos;
|
||||
byte const* loop_begin;
|
||||
bool has_looped;
|
||||
|
||||
// PCM
|
||||
enum { PCM_BANK_COUNT = 0x40 };
|
||||
typedef struct _vgm_pcm_bank_data
|
||||
{
|
||||
unsigned DataSize;
|
||||
byte* Data;
|
||||
unsigned DataStart;
|
||||
} VGM_PCM_DATA;
|
||||
typedef struct _vgm_pcm_bank
|
||||
{
|
||||
unsigned BankCount;
|
||||
VGM_PCM_DATA* Bank;
|
||||
unsigned DataSize;
|
||||
byte* Data;
|
||||
unsigned DataPos;
|
||||
unsigned BnkPos;
|
||||
} VGM_PCM_BANK;
|
||||
|
||||
typedef struct pcmbank_table
|
||||
{
|
||||
byte ComprType;
|
||||
byte CmpSubType;
|
||||
byte BitDec;
|
||||
byte BitCmp;
|
||||
unsigned EntryCount;
|
||||
void* Entries;
|
||||
} PCMBANK_TBL;
|
||||
|
||||
VGM_PCM_BANK PCMBank[PCM_BANK_COUNT];
|
||||
PCMBANK_TBL PCMTbl;
|
||||
|
||||
void ReadPCMTable(unsigned DataSize, const byte* Data);
|
||||
void AddPCMData(byte Type, unsigned DataSize, const byte* Data);
|
||||
bool DecompressDataBlk(VGM_PCM_DATA* Bank, unsigned DataSize, const byte* Data);
|
||||
const byte* GetPointerFromPCMBank(byte Type, unsigned DataPos);
|
||||
|
||||
byte const* pcm_pos; // current position in PCM data
|
||||
int dac_amp[2];
|
||||
int dac_disabled[2]; // -1 if disabled
|
||||
void write_pcm( vgm_time_t, int chip, int amp );
|
||||
|
||||
blip_time_t run( vgm_time_t );
|
||||
int run_ym2151( int chip, int time );
|
||||
int run_ym2203( int chip, int time );
|
||||
int run_ym2413( int chip, int time );
|
||||
int run_ym2612( int chip, int time );
|
||||
int run_ym3812( int chip, int time );
|
||||
int run_ymf262( int chip, int time );
|
||||
int run_ym2610( int chip, int time );
|
||||
int run_ym2608( int chip, int time );
|
||||
int run_ymz280b( int time );
|
||||
int run_c140( int time );
|
||||
int run_segapcm( int time );
|
||||
int run_rf5c68( int time );
|
||||
int run_rf5c164( int time );
|
||||
int run_pwm( int time );
|
||||
int run_okim6258( int chip, int time );
|
||||
int run_okim6295( int chip, int time );
|
||||
int run_k051649( int time );
|
||||
int run_k053260( int time );
|
||||
int run_k054539( int time );
|
||||
int run_qsound( int chip, int time );
|
||||
void update_fm_rates( int* ym2151_rate, int* ym2413_rate, int* ym2612_rate ) const;
|
||||
};
|
||||
|
||||
#endif
|
||||
// Sega VGM music file emulator core
|
||||
|
||||
// Game_Music_Emu $vers
|
||||
#ifndef VGM_CORE_H
|
||||
#define VGM_CORE_H
|
||||
|
||||
#include "Gme_Loader.h"
|
||||
#include "Ymz280b_Emu.h"
|
||||
#include "Ymf262_Emu.h"
|
||||
#include "Ym2612_Emu.h"
|
||||
#include "Ym2610b_Emu.h"
|
||||
#include "Ym2608_Emu.h"
|
||||
#include "Ym3812_Emu.h"
|
||||
#include "Ym2413_Emu.h"
|
||||
#include "Ym2151_Emu.h"
|
||||
#include "C140_Emu.h"
|
||||
#include "SegaPcm_Emu.h"
|
||||
#include "Rf5C68_Emu.h"
|
||||
#include "Rf5C164_Emu.h"
|
||||
#include "Pwm_Emu.h"
|
||||
#include "Okim6258_Emu.h"
|
||||
#include "Okim6295_Emu.h"
|
||||
#include "K051649_Emu.h"
|
||||
#include "K053260_Emu.h"
|
||||
#include "K054539_Emu.h"
|
||||
#include "Qsound_Apu.h"
|
||||
#include "Ym2203_Emu.h"
|
||||
#include "Ay_Apu.h"
|
||||
#include "Gb_Apu.h"
|
||||
#include "Hes_Apu.h"
|
||||
#include "Sms_Apu.h"
|
||||
#include "Multi_Buffer.h"
|
||||
#include "Chip_Resampler.h"
|
||||
|
||||
template<class Emu>
|
||||
class Chip_Emu : public Emu {
|
||||
int last_time;
|
||||
short* out;
|
||||
enum { disabled_time = -1 };
|
||||
public:
|
||||
Chip_Emu() { last_time = disabled_time; out = NULL; }
|
||||
void enable( bool b = true ) { last_time = b ? 0 : disabled_time; }
|
||||
bool enabled() const { return last_time != disabled_time; }
|
||||
void begin_frame( short* buf ) { out = buf; last_time = 0; }
|
||||
|
||||
int run_until( int time )
|
||||
{
|
||||
int count = time - last_time;
|
||||
if ( count > 0 )
|
||||
{
|
||||
if ( last_time < 0 )
|
||||
return false;
|
||||
last_time = time;
|
||||
short* p = out;
|
||||
out += count * Emu::out_chan_count;
|
||||
Emu::run( count, p );
|
||||
}
|
||||
return true;
|
||||
}
|
||||
};
|
||||
|
||||
class Vgm_Core : public Gme_Loader {
|
||||
public:
|
||||
|
||||
// VGM file header
|
||||
struct header_t
|
||||
{
|
||||
enum { size_min = 0x40 };
|
||||
enum { size_151 = 0x80 };
|
||||
enum { size_max = 0xC0 };
|
||||
|
||||
char tag [4]; // 0x00
|
||||
byte data_size [4]; // 0x04
|
||||
byte version [4]; // 0x08
|
||||
byte psg_rate [4]; // 0x0C
|
||||
byte ym2413_rate [4]; // 0x10
|
||||
byte gd3_offset [4]; // 0x14
|
||||
byte track_duration [4]; // 0x18
|
||||
byte loop_offset [4]; // 0x1C
|
||||
byte loop_duration [4]; // 0x20
|
||||
byte frame_rate [4]; // 0x24 v1.01 V
|
||||
byte noise_feedback [2]; // 0x28 v1.10 V
|
||||
byte noise_width; // 0x2A
|
||||
byte sn76489_flags; // 0x2B v1.51 <
|
||||
byte ym2612_rate [4]; // 0x2C v1.10 V
|
||||
byte ym2151_rate [4]; // 0x30
|
||||
byte data_offset [4]; // 0x34 v1.50 V
|
||||
byte segapcm_rate [4]; // 0x38 v1.51 V
|
||||
byte segapcm_reg [4]; // 0x3C
|
||||
byte rf5c68_rate [4]; // 0x40
|
||||
byte ym2203_rate [4]; // 0x44
|
||||
byte ym2608_rate [4]; // 0x48
|
||||
byte ym2610_rate [4]; // 0x4C
|
||||
byte ym3812_rate [4]; // 0x50
|
||||
byte ym3526_rate [4]; // 0x54
|
||||
byte y8950_rate [4]; // 0x58
|
||||
byte ymf262_rate [4]; // 0x5C
|
||||
byte ymf278b_rate [4]; // 0x60
|
||||
byte ymf271_rate [4]; // 0x64
|
||||
byte ymz280b_rate [4]; // 0x68
|
||||
byte rf5c164_rate [4]; // 0x6C
|
||||
byte pwm_rate [4]; // 0x70
|
||||
byte ay8910_rate [4]; // 0x74
|
||||
byte ay8910_type; // 0x78
|
||||
byte ay8910_flags; // 0x79
|
||||
byte ym2203_ay8910_flags;// 0x7A
|
||||
byte ym2608_ay8910_flags;// 0x7B
|
||||
byte volume_modifier; // 0x7C v1.60 V
|
||||
byte reserved; // 0x7D
|
||||
byte loop_base; // 0x7E
|
||||
byte loop_modifier; // 0x7F v1.51 <
|
||||
byte gbdmg_rate [4]; // 0x80 v1.61 V
|
||||
byte nesapu_rate [4]; // 0x84
|
||||
byte multipcm_rate [4]; // 0x88
|
||||
byte upd7759_rate [4]; // 0x8C
|
||||
byte okim6258_rate [4]; // 0x90
|
||||
byte okim6258_flags; // 0x94
|
||||
byte k054539_flags; // 0x95
|
||||
byte c140_type; // 0x96
|
||||
byte reserved_flags; // 0x97
|
||||
byte okim6295_rate [4]; // 0x98
|
||||
byte k051649_rate [4]; // 0x9C
|
||||
byte k054539_rate [4]; // 0xA0
|
||||
byte huc6280_rate [4]; // 0xA4
|
||||
byte c140_rate [4]; // 0xA8
|
||||
byte k053260_rate [4]; // 0xAC
|
||||
byte pokey_rate [4]; // 0xB0
|
||||
byte qsound_rate [4]; // 0xB4
|
||||
byte reserved2 [4]; // 0xB8
|
||||
byte extra_offset [4]; // 0xBC
|
||||
|
||||
// True if header has valid file signature
|
||||
bool valid_tag() const;
|
||||
int size() const;
|
||||
void cleanup();
|
||||
};
|
||||
|
||||
// Header for currently loaded file
|
||||
header_t const& header() const { return _header; }
|
||||
|
||||
// Raw file data, for parsing GD3 tags
|
||||
byte const* file_begin() const { return Gme_Loader::file_begin(); }
|
||||
byte const* file_end () const { return Gme_Loader::file_end(); }
|
||||
|
||||
// If file uses FM, initializes FM sound emulator using *sample_rate. If
|
||||
// *sample_rate is zero, sets *sample_rate to the proper accurate rate and
|
||||
// uses that. The output of the FM sound emulator is resampled to the
|
||||
// final sampling rate.
|
||||
blargg_err_t init_chips( double* fm_rate, bool reinit = false );
|
||||
|
||||
// True if any FM chips are used by file. Always false until init_fm()
|
||||
// is called.
|
||||
bool uses_fm() const { return ym2612[0].enabled() || ym2413[0].enabled() || ym2151[0].enabled() || c140.enabled() ||
|
||||
segapcm.enabled() || rf5c68.enabled() || rf5c164.enabled() || pwm.enabled() || okim6258[0].enabled() || okim6295[0].enabled() ||
|
||||
k051649.enabled() || k053260.enabled() || k054539.enabled() || ym2203[0].enabled() || ym3812[0].enabled() || ymf262[0].enabled() ||
|
||||
ymz280b.enabled() || ym2610[0].enabled() || ym2608[0].enabled() || qsound[0].enabled() ||
|
||||
(header().ay8910_rate[0] | header().ay8910_rate[1] | header().ay8910_rate[2] | header().ay8910_rate[3]) ||
|
||||
(header().huc6280_rate[0] | header().huc6280_rate[1] | header().huc6280_rate[2] | header().huc6280_rate[3]) ||
|
||||
(header().gbdmg_rate[0] | header().gbdmg_rate[1] | header().gbdmg_rate[2] | header().gbdmg_rate[3]); }
|
||||
|
||||
// Adjusts music tempo, where 1.0 is normal. Can be changed while playing.
|
||||
// Loading a file resets tempo to 1.0.
|
||||
void set_tempo( double );
|
||||
|
||||
void set_sample_rate( int r ) { sample_rate = r; }
|
||||
|
||||
// Starts track
|
||||
void start_track();
|
||||
|
||||
// Runs PSG-only VGM for msec and returns number of clocks it ran for
|
||||
blip_time_t run_psg( int msec );
|
||||
|
||||
// Plays FM for at most count samples into *out, and returns number of
|
||||
// samples actually generated (always even). Also runs PSG for blip_time.
|
||||
int play_frame( blip_time_t blip_time, int count, blip_sample_t out [] );
|
||||
|
||||
// True if all of file data has been played
|
||||
bool track_ended() const { return pos >= file_end(); }
|
||||
|
||||
// 0 for PSG and YM2612 DAC, 1 for AY, 2 for HuC6280, 3 for GB DMG
|
||||
Stereo_Buffer stereo_buf[4];
|
||||
|
||||
// PCM sound is always generated here
|
||||
Blip_Buffer * blip_buf[2];
|
||||
|
||||
// PSG sound chips, for assigning to Blip_Buffer, and setting volume and EQ
|
||||
Sms_Apu psg[2];
|
||||
Ay_Apu ay[2];
|
||||
Hes_Apu huc6280[2];
|
||||
Gb_Apu gbdmg[2];
|
||||
|
||||
// PCM synth, for setting volume and EQ
|
||||
Blip_Synth_Fast pcm;
|
||||
|
||||
// FM sound chips
|
||||
Chip_Resampler_Emu<Ymf262_Emu> ymf262[2];
|
||||
Chip_Resampler_Emu<Ym3812_Emu> ym3812[2];
|
||||
Chip_Resampler_Emu<Ym2612_Emu> ym2612[2];
|
||||
Chip_Resampler_Emu<Ym2610b_Emu> ym2610[2];
|
||||
Chip_Resampler_Emu<Ym2608_Emu> ym2608[2];
|
||||
Chip_Resampler_Emu<Ym2413_Emu> ym2413[2];
|
||||
Chip_Resampler_Emu<Ym2151_Emu> ym2151[2];
|
||||
Chip_Resampler_Emu<Ym2203_Emu> ym2203[2];
|
||||
|
||||
// PCM sound chips
|
||||
Chip_Resampler_Emu<C140_Emu> c140;
|
||||
Chip_Resampler_Emu<SegaPcm_Emu> segapcm;
|
||||
Chip_Resampler_Emu<Rf5C68_Emu> rf5c68;
|
||||
Chip_Resampler_Emu<Rf5C164_Emu> rf5c164;
|
||||
Chip_Resampler_Emu<Pwm_Emu> pwm;
|
||||
Chip_Resampler_Emu<Okim6258_Emu> okim6258[2]; int okim6258_hz[2];
|
||||
Chip_Resampler_Emu<Okim6295_Emu> okim6295[2]; int okim6295_hz;
|
||||
Chip_Resampler_Emu<K051649_Emu> k051649;
|
||||
Chip_Resampler_Emu<K053260_Emu> k053260;
|
||||
Chip_Resampler_Emu<K054539_Emu> k054539;
|
||||
Chip_Resampler_Emu<Ymz280b_Emu> ymz280b; int ymz280b_hz;
|
||||
Chip_Resampler_Emu<Qsound_Apu> qsound[2];
|
||||
|
||||
// DAC control
|
||||
typedef struct daccontrol_data
|
||||
{
|
||||
bool Enable;
|
||||
byte Bank;
|
||||
} DACCTRL_DATA;
|
||||
|
||||
byte DacCtrlUsed;
|
||||
byte DacCtrlUsg[0xFF];
|
||||
DACCTRL_DATA DacCtrl[0xFF];
|
||||
byte DacCtrlMap[0xFF];
|
||||
int DacCtrlTime[0xFF];
|
||||
void ** dac_control;
|
||||
|
||||
void dac_control_grow(byte chip_id);
|
||||
|
||||
int dac_control_recursion;
|
||||
|
||||
int run_dac_control( int time );
|
||||
|
||||
public:
|
||||
void chip_reg_write(unsigned Sample, byte ChipType, byte ChipID, byte Port, byte Offset, byte Data);
|
||||
|
||||
// Implementation
|
||||
public:
|
||||
Vgm_Core();
|
||||
~Vgm_Core();
|
||||
|
||||
protected:
|
||||
virtual blargg_err_t load_mem_( byte const [], int );
|
||||
|
||||
private:
|
||||
// blip_time_t // PSG clocks
|
||||
typedef int vgm_time_t; // 44100 per second, REGARDLESS of sample rate
|
||||
typedef int fm_time_t; // FM sample count
|
||||
|
||||
int sample_rate;
|
||||
int vgm_rate; // rate of log, 44100 normally, adjusted by tempo
|
||||
double fm_rate; // FM samples per second
|
||||
|
||||
header_t _header;
|
||||
|
||||
// VGM to FM time
|
||||
int fm_time_factor;
|
||||
int fm_time_offset;
|
||||
fm_time_t to_fm_time( vgm_time_t ) const;
|
||||
|
||||
// VGM to PSG time
|
||||
int blip_time_factor;
|
||||
blip_time_t to_psg_time( vgm_time_t ) const;
|
||||
|
||||
int blip_ay_time_factor;
|
||||
int ay_time_offset;
|
||||
blip_time_t to_ay_time( vgm_time_t ) const;
|
||||
|
||||
int blip_huc6280_time_factor;
|
||||
int huc6280_time_offset;
|
||||
blip_time_t to_huc6280_time( vgm_time_t ) const;
|
||||
|
||||
int blip_gbdmg_time_factor;
|
||||
int gbdmg_time_offset;
|
||||
blip_time_t to_gbdmg_time( vgm_time_t ) const;
|
||||
|
||||
// Current time and position in log
|
||||
vgm_time_t vgm_time;
|
||||
byte const* pos;
|
||||
byte const* loop_begin;
|
||||
bool has_looped;
|
||||
|
||||
// PCM
|
||||
enum { PCM_BANK_COUNT = 0x40 };
|
||||
typedef struct _vgm_pcm_bank_data
|
||||
{
|
||||
unsigned DataSize;
|
||||
byte* Data;
|
||||
unsigned DataStart;
|
||||
} VGM_PCM_DATA;
|
||||
typedef struct _vgm_pcm_bank
|
||||
{
|
||||
unsigned BankCount;
|
||||
VGM_PCM_DATA* Bank;
|
||||
unsigned DataSize;
|
||||
byte* Data;
|
||||
unsigned DataPos;
|
||||
unsigned BnkPos;
|
||||
} VGM_PCM_BANK;
|
||||
|
||||
typedef struct pcmbank_table
|
||||
{
|
||||
byte ComprType;
|
||||
byte CmpSubType;
|
||||
byte BitDec;
|
||||
byte BitCmp;
|
||||
unsigned EntryCount;
|
||||
void* Entries;
|
||||
} PCMBANK_TBL;
|
||||
|
||||
VGM_PCM_BANK PCMBank[PCM_BANK_COUNT];
|
||||
PCMBANK_TBL PCMTbl;
|
||||
|
||||
void ReadPCMTable(unsigned DataSize, const byte* Data);
|
||||
void AddPCMData(byte Type, unsigned DataSize, const byte* Data);
|
||||
bool DecompressDataBlk(VGM_PCM_DATA* Bank, unsigned DataSize, const byte* Data);
|
||||
const byte* GetPointerFromPCMBank(byte Type, unsigned DataPos);
|
||||
|
||||
byte const* pcm_pos; // current position in PCM data
|
||||
int dac_amp[2];
|
||||
int dac_disabled[2]; // -1 if disabled
|
||||
void write_pcm( vgm_time_t, int chip, int amp );
|
||||
|
||||
blip_time_t run( vgm_time_t );
|
||||
int run_ym2151( int chip, int time );
|
||||
int run_ym2203( int chip, int time );
|
||||
int run_ym2413( int chip, int time );
|
||||
int run_ym2612( int chip, int time );
|
||||
int run_ym3812( int chip, int time );
|
||||
int run_ymf262( int chip, int time );
|
||||
int run_ym2610( int chip, int time );
|
||||
int run_ym2608( int chip, int time );
|
||||
int run_ymz280b( int time );
|
||||
int run_c140( int time );
|
||||
int run_segapcm( int time );
|
||||
int run_rf5c68( int time );
|
||||
int run_rf5c164( int time );
|
||||
int run_pwm( int time );
|
||||
int run_okim6258( int chip, int time );
|
||||
int run_okim6295( int chip, int time );
|
||||
int run_k051649( int time );
|
||||
int run_k053260( int time );
|
||||
int run_k054539( int time );
|
||||
int run_qsound( int chip, int time );
|
||||
void update_fm_rates( int* ym2151_rate, int* ym2413_rate, int* ym2612_rate ) const;
|
||||
};
|
||||
|
||||
#endif
|
||||
|
|
|
|||
File diff suppressed because it is too large
Load Diff
Loading…
Reference in New Issue