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Diffstat (limited to 'modules/chibi/cp_player_data_notes.cpp')
| -rw-r--r-- | modules/chibi/cp_player_data_notes.cpp | 345 |
1 files changed, 345 insertions, 0 deletions
diff --git a/modules/chibi/cp_player_data_notes.cpp b/modules/chibi/cp_player_data_notes.cpp new file mode 100644 index 0000000000..621be019e1 --- /dev/null +++ b/modules/chibi/cp_player_data_notes.cpp @@ -0,0 +1,345 @@ +/*************************************************************************/ +/* cp_player_data_notes.cpp */ +/*************************************************************************/ +/* This file is part of: */ +/* GODOT ENGINE */ +/* http://www.godotengine.org */ +/*************************************************************************/ +/* Copyright (c) 2007-2016 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 ); + } +} |