/*************************************************************************/ /* cp_player_data_notes.cpp */ /*************************************************************************/ /* This file is part of: */ /* GODOT ENGINE */ /* http://www.godotengine.org */ /*************************************************************************/ /* Copyright (c) 2007-2015 Juan Linietsky, Ariel Manzur. */ /* */ /* Permission is hereby granted, free of charge, to any person obtaining */ /* a copy of this software and associated documentation files (the */ /* "Software"), to deal in the Software without restriction, including */ /* without limitation the rights to use, copy, modify, merge, publish, */ /* distribute, sublicense, and/or sell copies of the Software, and to */ /* permit persons to whom the Software is furnished to do so, subject to */ /* the following conditions: */ /* */ /* The above copyright notice and this permission notice shall be */ /* included in all copies or substantial portions of the Software. */ /* */ /* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, */ /* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF */ /* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*/ /* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY */ /* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, */ /* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE */ /* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */ /*************************************************************************/ #include "cp_player_data.h" #include "cp_sample_manager.h" #define RANDOM_MAX 2147483647 static inline int32_t cp_random_generate(int32_t *seed) { int32_t k; int32_t s = (int32_t)(*seed); if (s == 0) s = 0x12345987; k = s / 127773; s = 16807 * (s - k * 127773) - 2836 * k; if (s < 0) s += 2147483647; (*seed) = (int32_t)s; return (int32_t)(s & RANDOM_MAX); } void CPPlayer::process_new_note(int p_track,uint8_t p_note) { // if there's really a new note.... if (control.channel[p_track].real_note!=255) { control.channel[p_track].old_note=control.channel[p_track].real_note; } control.channel[p_track].real_note=p_note; control.channel[p_track].kick=KICK_NOTE; control.channel[p_track].sample_start_index=-1; control.channel[p_track].sliding=0; control.channel[p_track].row_has_note=true; control.channel[p_track].last_event_usecs=song_usecs; if (control.channel[p_track].panbrello_type) control.channel[p_track].panbrello_position=0; } bool CPPlayer::process_new_instrument(int p_track,uint8_t p_instrument) { // bool different_instrument=false; ERR_FAIL_INDEX_V(p_instrument,CPSong::MAX_INSTRUMENTS,false); if ( song->has_instruments() ) { control.channel[p_track].instrument_ptr=song->get_instrument(p_instrument); } else { control.channel[p_track].instrument_ptr=NULL; } control.channel[p_track].retrig_counter=0; control.channel[p_track].tremor_position=0; control.channel[p_track].sample_offset_fine=0; int old_instr_index=control.channel[p_track].instrument_index; control.channel[p_track].instrument_index=p_instrument; return (old_instr_index!=p_instrument); } // returns if it was able to process bool CPPlayer::process_note_and_instrument(int p_track,int p_note,int p_instrument) { bool aux_result; aux_result=false; CPSample *aux_sample=0; // current sample int dest_sample_index; bool new_instrument=false; control.channel[p_track].row_has_note=false; // wise man says.. "we dont have a note... until we really know we have a note". control.channel[p_track].new_instrument=false; if ( (p_note<0) && (p_instrument<0) ) return aux_result; // nothing to do here if ( (p_note==255) && (p_instrument==255) ) return aux_result; if ( (p_note>=0) && (p_note<120) ) { process_new_note(p_track,p_note); } else if (p_note==CPNote::CUT) { control.channel[p_track].aux_volume=0; control.channel[p_track].note_end_flags|=END_NOTE_OFF; control.channel[p_track].note_end_flags|=END_NOTE_KILL; return aux_result; } else if ((p_note==CPNote::OFF) && (song->has_instruments())) { if (control.channel[p_track].instrument_ptr!=NULL) { control.channel[p_track].note_end_flags|=END_NOTE_OFF; if (!control.channel[p_track].instrument_ptr->get_volume_envelope()->is_enabled() || control.channel[p_track].instrument_ptr->get_volume_envelope()->is_loop_enabled()) { control.channel[p_track].note_end_flags|=END_NOTE_FADE; } } return aux_result; } else return aux_result; // invalid note! if ( (p_instrument>=0) && (p_instrument<CPSong::MAX_INSTRUMENTS)) { new_instrument=process_new_instrument(p_track,p_instrument); if ( song->has_instruments() ) { // If we're in instrument mode... if ( control.channel[p_track].instrument_ptr->get_sample_number(control.channel[p_track].real_note) >= CPSong::MAX_SAMPLES) { control.channel[p_track].kick=KICK_NOTHING; return aux_result; } else { dest_sample_index=control.channel[p_track].instrument_ptr->get_sample_number(control.channel[p_track].real_note); control.channel[p_track].note=control.channel[p_track].instrument_ptr->get_note_number(control.channel[p_track].real_note); } } else { // If we're in sample mode... dest_sample_index=control.channel[p_track].instrument_index; control.channel[p_track].note=control.channel[p_track].real_note; } control.channel[p_track].sample_index=dest_sample_index; aux_sample=song->get_sample(dest_sample_index); if (!CPSampleManager::get_singleton()->check( aux_sample->get_sample_data() )) { /* INVALID SAMPLE */ control.channel[p_track].kick=KICK_NOTHING; return aux_result; } aux_sample=song->get_sample(dest_sample_index); } else { if (!control.channel[p_track].sample_ptr) return aux_result; if (song->has_instruments()) { if (!control.channel[p_track].instrument_ptr) return aux_result; control.channel[p_track].note=control.channel[p_track].instrument_ptr->get_note_number(control.channel[p_track].real_note); } else { control.channel[p_track].note=control.channel[p_track].real_note; } aux_sample=control.channel[p_track].sample_ptr; } if (p_instrument>=CPSong::MAX_INSTRUMENTS && control.channel[p_track].sample_ptr!=aux_sample) { control.channel[p_track].new_instrument=(control.channel[p_track].period>0); } control.channel[p_track].sample_ptr=aux_sample; /* channel or instrument determined panning ? */ control.channel[p_track].panning=control.channel[p_track].channel_panning; /* set filter,if any ? */ if (aux_sample->is_pan_enabled()) { control.channel[p_track].panning=(int)aux_sample->get_pan()*255/64; } else if ( song->has_instruments() && (control.channel[p_track].instrument_ptr->is_pan_default_enabled()) ) { control.channel[p_track].panning=(int)control.channel[p_track].instrument_ptr->get_pan_default_amount()*255/64; } if (song->has_instruments()) { /* Pitch-Pan Separation */ if ((control.channel[p_track].instrument_ptr->get_pan_pitch_separation()!=0) && (control.channel[p_track].channel_panning!=PAN_SURROUND)){ control.channel[p_track].panning+=((control.channel[p_track].real_note-control.channel[p_track].instrument_ptr->get_pan_pitch_center())*control.channel[p_track].instrument_ptr->get_pan_pitch_separation())/8; if (control.channel[p_track].panning<PAN_LEFT) control.channel[p_track].panning=PAN_LEFT; if (control.channel[p_track].panning>PAN_RIGHT) control.channel[p_track].panning=PAN_RIGHT; } /* Random Volume Variation */ if (control.channel[p_track].instrument_ptr->get_volume_random_variation()>0) { control.channel[p_track].random_volume_variation=100-(cp_random_generate(&control.random_seed) % control.channel[p_track].instrument_ptr->get_volume_random_variation()); } else { control.channel[p_track].random_volume_variation=100; } /* Random Pan Variation */ if ((control.channel[p_track].instrument_ptr->get_pan_random_variation()>0) && (control.channel[p_track].panning!=PAN_SURROUND)){ int aux_pan_modifier; aux_pan_modifier=(cp_random_generate(&control.random_seed) % (control.channel[p_track].instrument_ptr->get_pan_random_variation() << 2)); if ((cp_random_generate(&control.random_seed) % 2)==1) aux_pan_modifier=0-aux_pan_modifier; /* it's 5am, let me sleep :) */ control.channel[p_track].panning+=aux_pan_modifier; if (control.channel[p_track].panning<PAN_LEFT) control.channel[p_track].panning=PAN_LEFT; if (control.channel[p_track].panning>PAN_RIGHT) control.channel[p_track].panning=PAN_RIGHT; } /*filter*/ if (control.channel[p_track].instrument_ptr->filter_use_default_cutoff()) { control.channel[p_track].filter.it_cutoff=control.channel[p_track].instrument_ptr->get_filter_default_cutoff()*2; } if (control.channel[p_track].instrument_ptr->filter_use_default_resonance()) { control.channel[p_track].filter.it_reso=control.channel[p_track].instrument_ptr->get_filter_default_resonance()*2; } /*envelopes*/ control.channel[p_track].volume_envelope_on=control.channel[p_track].instrument_ptr->get_volume_envelope()->is_enabled(); control.channel[p_track].panning_envelope_on=control.channel[p_track].instrument_ptr->get_pan_envelope()->is_enabled(); control.channel[p_track].pitch_envelope_on=control.channel[p_track].instrument_ptr->get_pitch_filter_envelope()->is_enabled(); control.channel[p_track].NNA_type=control.channel[p_track].instrument_ptr->get_NNA_type(); control.channel[p_track].duplicate_check_type=control.channel[p_track].instrument_ptr->get_DC_type(); control.channel[p_track].duplicate_check_action=control.channel[p_track].instrument_ptr->get_DC_action(); } else { control.channel[p_track].NNA_type=CPInstrument::NNA_NOTE_CUT; control.channel[p_track].duplicate_check_type=CPInstrument::DCT_DISABLED; control.channel[p_track].duplicate_check_action=CPInstrument::DCA_NOTE_CUT; } if (p_instrument<CPSong::MAX_INSTRUMENTS) { // instrument change control.channel[p_track].volume=control.channel[p_track].aux_volume=aux_sample->get_default_volume(); } control.channel[p_track].slide_to_period=control.channel[p_track].aux_period=get_period((uint16_t)(control.channel[p_track].note)<<1,CPSampleManager::get_singleton()->get_c5_freq( (aux_sample->get_sample_data()))); control.channel[p_track].note_end_flags=END_NOTE_NOTHING; /* clears flags */ return true; } void CPPlayer::process_volume_column(int p_track,uint8_t p_volume) { control.channel[p_track].current_volume_command=CPNote::EMPTY; control.channel[p_track].current_volume_parameter=CPNote::EMPTY; if (p_volume<65) { // VOLUME control.channel[p_track].aux_volume=p_volume; } else if (p_volume<125) { // Volume Command control.channel[p_track].current_volume_command=(p_volume-65) / 10; control.channel[p_track].current_volume_parameter=(p_volume-65) % 10; } else if (p_volume<193) { // PAN control.channel[p_track].channel_panning=(p_volume-128)*PAN_RIGHT/64; control.channel[p_track].panning=control.channel[p_track].channel_panning; } else if (p_volume<213) { //More volume Commands control.channel[p_track].current_volume_command=((p_volume-193) / 10)+6; control.channel[p_track].current_volume_parameter=(p_volume-193) % 10; } } void CPPlayer::process_note(int p_track,CPNote p_note) { if ( p_note.note!=CPNote::SCRIPT ) { process_note_and_instrument(p_track,p_note.note,p_note.instrument); process_volume_column(p_track,p_note.volume); control.channel[p_track].current_command=p_note.command; control.channel[p_track].current_parameter=p_note.parameter; } else { CPNote n = song->get_pattern( control.position.current_pattern )->get_transformed_script_note( p_track, control.position.current_row ); process_note( p_track, n ); song->get_pattern( control.position.current_pattern )->scripted_clone( p_track, control.position.current_row ); } }