diff options
Diffstat (limited to 'plugins/gme/game-music-emu-0.6pre/gme/Gbs_Emu.cpp')
| -rw-r--r-- | plugins/gme/game-music-emu-0.6pre/gme/Gbs_Emu.cpp | 143 |
1 files changed, 143 insertions, 0 deletions
diff --git a/plugins/gme/game-music-emu-0.6pre/gme/Gbs_Emu.cpp b/plugins/gme/game-music-emu-0.6pre/gme/Gbs_Emu.cpp new file mode 100644 index 00000000..81fa42f2 --- /dev/null +++ b/plugins/gme/game-music-emu-0.6pre/gme/Gbs_Emu.cpp @@ -0,0 +1,143 @@ +// Game_Music_Emu 0.6-pre. http://www.slack.net/~ant/
+
+#include "Gbs_Emu.h"
+
+/* Copyright (C) 2003-2009 Shay Green. This module is free software; you
+can redistribute it and/or modify it under the terms of the GNU Lesser
+General Public License as published by the Free Software Foundation; either
+version 2.1 of the License, or (at your option) any later version. This
+module is distributed in the hope that it will be useful, but WITHOUT ANY
+WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
+FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more
+details. You should have received a copy of the GNU Lesser General Public
+License along with this module; if not, write to the Free Software Foundation,
+Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA */
+
+#include "blargg_source.h"
+
+Gbs_Emu::equalizer_t const Gbs_Emu::handheld_eq = { -47.0, 2000 };
+Gbs_Emu::equalizer_t const Gbs_Emu::cgb_eq = { 0.0, 300 };
+Gbs_Emu::equalizer_t const Gbs_Emu::headphones_eq = { 0.0, 30 }; // DMG
+
+Gbs_Emu::Gbs_Emu()
+{
+ sound_hardware = sound_gbs;
+ enable_clicking( false );
+ set_type( gme_gbs_type );
+ set_silence_lookahead( 6 );
+ set_max_initial_silence( 21 );
+ set_gain( 1.2 );
+
+ // kind of midway between headphones and speaker
+ static equalizer_t const eq = { -1.0, 120 };
+ set_equalizer( eq );
+}
+
+Gbs_Emu::~Gbs_Emu() { }
+
+void Gbs_Emu::unload()
+{
+ core_.unload();
+ Music_Emu::unload();
+}
+
+// Track info
+
+static void copy_gbs_fields( Gbs_Emu::header_t const& h, track_info_t* out )
+{
+ GME_COPY_FIELD( h, out, game );
+ GME_COPY_FIELD( h, out, author );
+ GME_COPY_FIELD( h, out, copyright );
+}
+
+blargg_err_t Gbs_Emu::track_info_( track_info_t* out, int ) const
+{
+ copy_gbs_fields( header(), out );
+ return blargg_ok;
+}
+
+struct Gbs_File : Gme_Info_
+{
+ Gbs_Emu::header_t h;
+
+ Gbs_File() { set_type( gme_gbs_type ); }
+
+ blargg_err_t load_( Data_Reader& in )
+ {
+ blargg_err_t err = in.read( &h, h.size );
+ if ( err )
+ return (blargg_is_err_type( err, blargg_err_file_eof ) ? blargg_err_file_type : err);
+
+ set_track_count( h.track_count );
+ if ( !h.valid_tag() )
+ return blargg_err_file_type;
+
+ return blargg_ok;
+ }
+
+ blargg_err_t track_info_( track_info_t* out, int ) const
+ {
+ copy_gbs_fields( h, out );
+ return blargg_ok;
+ }
+};
+
+static Music_Emu* new_gbs_emu () { return BLARGG_NEW Gbs_Emu ; }
+static Music_Emu* new_gbs_file() { return BLARGG_NEW Gbs_File; }
+
+gme_type_t_ const gme_gbs_type [1] = {{ "Game Boy", 0, &new_gbs_emu, &new_gbs_file, "GBS", 1 }};
+
+// Setup
+
+blargg_err_t Gbs_Emu::load_( Data_Reader& in )
+{
+ RETURN_ERR( core_.load( in ) );
+ set_warning( core_.warning() );
+ set_track_count( header().track_count );
+ set_voice_count( Gb_Apu::osc_count );
+ core_.apu().volume( gain() );
+
+ static const char* const names [Gb_Apu::osc_count] = {
+ "Square 1", "Square 2", "Wave", "Noise"
+ };
+ set_voice_names( names );
+
+ static int const types [Gb_Apu::osc_count] = {
+ wave_type+1, wave_type+2, wave_type+3, mixed_type+1
+ };
+ set_voice_types( types );
+
+ return setup_buffer( 4194304 );
+}
+
+void Gbs_Emu::update_eq( blip_eq_t const& eq )
+{
+ core_.apu().treble_eq( eq );
+}
+
+void Gbs_Emu::set_voice( int i, Blip_Buffer* c, Blip_Buffer* l, Blip_Buffer* r )
+{
+ core_.apu().set_output( i, c, l, r );
+}
+
+void Gbs_Emu::set_tempo_( double t )
+{
+ core_.set_tempo( t );
+}
+
+blargg_err_t Gbs_Emu::start_track_( int track )
+{
+ sound_t mode = sound_hardware;
+ if ( mode == sound_gbs )
+ mode = (header().timer_mode & 0x80) ? sound_cgb : sound_dmg;
+
+ RETURN_ERR( core_.start_track( track, (Gb_Apu::mode_t) mode ) );
+
+ // clear buffer AFTER track is started, eliminating initial click
+ return Classic_Emu::start_track_( track );
+}
+
+blargg_err_t Gbs_Emu::run_clocks( blip_time_t& duration, int )
+{
+ return core_.end_frame( duration );
+}
|