// Game_Music_Emu 0.6.0. http://www.slack.net/~ant/ #include "Music_Emu.h" #include "gme_types.h" #if !GME_DISABLE_STEREO_DEPTH #include "Effects_Buffer.h" #endif #include "blargg_endian.h" #include #include /* Copyright (C) 2003-2006 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" BLARGG_EXPORT gme_type_t const* gme_type_list() { static gme_type_t const gme_type_list_ [] = { #ifdef GME_TYPE_LIST GME_TYPE_LIST, #else #ifdef USE_GME_AY gme_ay_type, #endif #ifdef USE_GME_GBS gme_gbs_type, #endif #ifdef USE_GME_GYM gme_gym_type, #endif #ifdef USE_GME_HES gme_hes_type, #endif #ifdef USE_GME_KSS gme_kss_type, #endif #ifdef USE_GME_NSF gme_nsf_type, #endif #ifdef USE_GME_NSFE gme_nsfe_type, #endif #ifdef USE_GME_SAP gme_sap_type, #endif #ifdef USE_GME_SPC gme_spc_type, #endif #ifdef USE_GME_VGM gme_vgm_type, gme_vgz_type, #endif #endif 0 }; return gme_type_list_; } BLARGG_EXPORT const char* gme_identify_header( void const* header ) { switch ( get_be32( header ) ) { case BLARGG_4CHAR('Z','X','A','Y'): return "AY"; case BLARGG_4CHAR('G','B','S',0x01): return "GBS"; case BLARGG_4CHAR('G','Y','M','X'): return "GYM"; case BLARGG_4CHAR('H','E','S','M'): return "HES"; case BLARGG_4CHAR('K','S','C','C'): case BLARGG_4CHAR('K','S','S','X'): return "KSS"; case BLARGG_4CHAR('N','E','S','M'): return "NSF"; case BLARGG_4CHAR('N','S','F','E'): return "NSFE"; case BLARGG_4CHAR('S','A','P',0x0D): return "SAP"; case BLARGG_4CHAR('S','N','E','S'): return "SPC"; case BLARGG_4CHAR('V','g','m',' '): return "VGM"; } return ""; } static void to_uppercase( const char* in, int len, char* out ) { for ( int i = 0; i < len; i++ ) { if ( !(out [i] = toupper( in [i] )) ) return; } *out = 0; // extension too long } BLARGG_EXPORT gme_type_t gme_identify_extension( const char* extension_ ) { char const* end = strrchr( extension_, '.' ); if ( end ) extension_ = end + 1; char extension [6]; to_uppercase( extension_, sizeof extension, extension ); for ( gme_type_t const* types = gme_type_list(); *types; types++ ) if ( !strcmp( extension, (*types)->extension_ ) ) return *types; return 0; } BLARGG_EXPORT gme_err_t gme_identify_file( const char* path, gme_type_t* type_out ) { *type_out = gme_identify_extension( path ); // TODO: don't examine header if file has extension? if ( !*type_out ) { char header [4]; GME_FILE_READER in; RETURN_ERR( in.open( path ) ); RETURN_ERR( in.read( header, sizeof header ) ); *type_out = gme_identify_extension( gme_identify_header( header ) ); } return 0; } BLARGG_EXPORT gme_err_t gme_open_data( void const* data, long size, Music_Emu** out, int sample_rate ) { require( (data || !size) && out ); *out = 0; gme_type_t file_type = 0; if ( size >= 4 ) file_type = gme_identify_extension( gme_identify_header( data ) ); if ( !file_type ) return gme_wrong_file_type; Music_Emu* emu = gme_new_emu( file_type, sample_rate ); CHECK_ALLOC( emu ); gme_err_t err = gme_load_data( emu, data, size ); if ( err ) delete emu; else *out = emu; return err; } BLARGG_EXPORT gme_err_t gme_open_file( const char* path, Music_Emu** out, int sample_rate ) { require( path && out ); *out = 0; GME_FILE_READER in; RETURN_ERR( in.open( path ) ); char header [4]; int header_size = 0; gme_type_t file_type = gme_identify_extension( path ); if ( !file_type ) { header_size = sizeof header; RETURN_ERR( in.read( header, sizeof header ) ); file_type = gme_identify_extension( gme_identify_header( header ) ); } if ( !file_type ) return gme_wrong_file_type; Music_Emu* emu = gme_new_emu( file_type, sample_rate ); CHECK_ALLOC( emu ); // optimization: avoids seeking/re-reading header Remaining_Reader rem( header, header_size, &in ); gme_err_t err = emu->load( rem ); in.close(); if ( err ) delete emu; else *out = emu; return err; } BLARGG_EXPORT Music_Emu* gme_new_emu( gme_type_t type, int rate ) { if ( type ) { if ( rate == gme_info_only ) return type->new_info(); Music_Emu* me = type->new_emu(); if ( me ) { #if !GME_DISABLE_STEREO_DEPTH if ( type->flags_ & 1 ) { me->effects_buffer = BLARGG_NEW Effects_Buffer; if ( me->effects_buffer ) me->set_buffer( me->effects_buffer ); } if ( !(type->flags_ & 1) || me->effects_buffer ) #endif { if ( !me->set_sample_rate( rate ) ) { check( me->type() == type ); return me; } } delete me; } } return 0; } BLARGG_EXPORT gme_err_t gme_load_file( Music_Emu* me, const char* path ) { return me->load_file( path ); } BLARGG_EXPORT gme_err_t gme_load_data( Music_Emu* me, void const* data, long size ) { Mem_File_Reader in( data, size ); return me->load( in ); } BLARGG_EXPORT gme_err_t gme_load_custom( Music_Emu* me, gme_reader_t func, long size, void* data ) { Callback_Reader in( func, size, data ); return me->load( in ); } BLARGG_EXPORT void gme_delete( Music_Emu* me ) { delete me; } BLARGG_EXPORT gme_type_t gme_type( Music_Emu const* me ) { return me->type(); } BLARGG_EXPORT const char* gme_warning( Music_Emu* me ) { return me->warning(); } BLARGG_EXPORT int gme_track_count( Music_Emu const* me ) { return me->track_count(); } struct gme_info_t_ : gme_info_t { track_info_t info; BLARGG_DISABLE_NOTHROW }; BLARGG_EXPORT gme_err_t gme_track_info( Music_Emu const* me, gme_info_t** out, int track ) { *out = NULL; gme_info_t_* info = BLARGG_NEW gme_info_t_; CHECK_ALLOC( info ); gme_err_t err = me->track_info( &info->info, track ); if ( err ) { gme_free_info( info ); return err; } #define COPY(name) info->name = info->info.name; COPY( length ); COPY( intro_length ); COPY( loop_length ); info->i4 = -1; info->i5 = -1; info->i6 = -1; info->i7 = -1; info->i8 = -1; info->i9 = -1; info->i10 = -1; info->i11 = -1; info->i12 = -1; info->i13 = -1; info->i14 = -1; info->i15 = -1; info->s7 = ""; info->s8 = ""; info->s9 = ""; info->s10 = ""; info->s11 = ""; info->s12 = ""; info->s13 = ""; info->s14 = ""; info->s15 = ""; COPY( system ); COPY( game ); COPY( song ); COPY( author ); COPY( copyright ); COPY( comment ); COPY( dumper ); #undef COPY info->play_length = info->length; if ( info->play_length <= 0 ) { info->play_length = info->intro_length + 2 * info->loop_length; // intro + 2 loops if ( info->play_length <= 0 ) info->play_length = 150 * 1000; // 2.5 minutes } *out = info; return 0; } BLARGG_EXPORT void gme_free_info( gme_info_t* info ) { delete STATIC_CAST(gme_info_t_*,info); } BLARGG_EXPORT void gme_set_stereo_depth( Music_Emu* me, double depth ) { #if !GME_DISABLE_STEREO_DEPTH if ( me->effects_buffer ) STATIC_CAST(Effects_Buffer*,me->effects_buffer)->set_depth( depth ); #endif } BLARGG_EXPORT void* gme_user_data ( Music_Emu const* me ) { return me->user_data(); } BLARGG_EXPORT void gme_set_user_data ( Music_Emu* me, void* new_user_data ) { me->set_user_data( new_user_data ); } BLARGG_EXPORT void gme_set_user_cleanup(Music_Emu* me, gme_user_cleanup_t func ) { me->set_user_cleanup( func ); } BLARGG_EXPORT gme_err_t gme_start_track ( Music_Emu* me, int index ) { return me->start_track( index ); } BLARGG_EXPORT gme_err_t gme_play ( Music_Emu* me, int n, short* p ) { return me->play( n, p ); } BLARGG_EXPORT void gme_set_fade ( Music_Emu* me, int start_msec ) { me->set_fade( start_msec ); } BLARGG_EXPORT int gme_track_ended ( Music_Emu const* me ) { return me->track_ended(); } BLARGG_EXPORT int gme_tell ( Music_Emu const* me ) { return me->tell(); } BLARGG_EXPORT int gme_tell_samples ( Music_Emu const* me ) { return me->tell_samples(); } BLARGG_EXPORT gme_err_t gme_seek ( Music_Emu* me, int msec ) { return me->seek( msec ); } BLARGG_EXPORT gme_err_t gme_seek_samples ( Music_Emu* me, int n ) { return me->seek_samples( n ); } BLARGG_EXPORT int gme_voice_count ( Music_Emu const* me ) { return me->voice_count(); } BLARGG_EXPORT void gme_ignore_silence ( Music_Emu* me, int disable ) { me->ignore_silence( disable != 0 ); } BLARGG_EXPORT void gme_set_tempo ( Music_Emu* me, double t ) { me->set_tempo( t ); } BLARGG_EXPORT void gme_mute_voice ( Music_Emu* me, int index, int mute ) { me->mute_voice( index, mute != 0 ); } BLARGG_EXPORT void gme_mute_voices ( Music_Emu* me, int mask ) { me->mute_voices( mask ); } BLARGG_EXPORT void gme_enable_accuracy( Music_Emu* me, int enabled ) { me->enable_accuracy( !!enabled ); } BLARGG_EXPORT void gme_clear_playlist ( Music_Emu* me ) { me->clear_playlist(); } BLARGG_EXPORT int gme_type_multitrack( gme_type_t t ) { return t->track_count != 1; } BLARGG_EXPORT void gme_set_equalizer ( Music_Emu* me, gme_equalizer_t const* eq ) { Music_Emu::equalizer_t e = me->equalizer(); e.treble = eq->treble; e.bass = eq->bass; me->set_equalizer( e ); } BLARGG_EXPORT void gme_equalizer( Music_Emu const* me, gme_equalizer_t* out ) { gme_equalizer_t e = gme_equalizer_t(); // Default-init all fields to 0.0f e.treble = me->equalizer().treble; e.bass = me->equalizer().bass; *out = e; } BLARGG_EXPORT const char* gme_voice_name( Music_Emu const* me, int i ) { assert( (unsigned) i < (unsigned) me->voice_count() ); return me->voice_names() [i]; } BLARGG_EXPORT const char* gme_type_system( gme_type_t type ) { assert( type ); return type->system; }