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godot/modules/chibi/cp_player_data_events.cpp
Rémi Verschelde c7bc44d5ad Welcome in 2017, dear changelog reader! 
That year should bring the long-awaited OpenGL ES 3.0 compatible renderer
with state-of-the-art rendering techniques tuned to work as low as middle
end handheld devices - without compromising with the possibilities given
for higher end desktop games of course. Great times ahead for the Godot
community and the gamers that will play our games!
2017-01-01 22:03:33 +01:00

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/*************************************************************************/
/* cp_player_data_events.cpp */
/*************************************************************************/
/* This file is part of: */
/* GODOT ENGINE */
/* http://www.godotengine.org */
/*************************************************************************/
/* Copyright (c) 2007-2017 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"
#include "stdio.h"
/*
setup_voices():
This will go throught all the REAL channels, if it finds a channel
that needs to be restarted or assigned a new VIRTUAL channel, then it
will just find one and do it.
*/
#define C5FREQ 261.6255653006
static const int32_t C5FREQ_MIXER = ((int32_t)(C5FREQ*(float)(1<<CPMixer::FREQUENCY_BITS)));
void CPPlayer::setup_voices() {
int i,voice_index;
for (i=0;i<CPPattern::WIDTH;i++) {
voice_index=-1;
if (control.channel[i].note_delay) continue;
// check if we need a new empty voice
if (control.channel[i].kick==KICK_NOTE) {
/* if no channel was cut above, find an empty or quiet channel
here */
if ( song->has_instruments() && !control.force_no_nna) {
if (control.channel[i].slave_voice==NULL) { // no slave??
int newchn;
if ((newchn=find_empty_voice())!=-1) {
control.channel[i].slave_voice_index=newchn;
control.channel[i].slave_voice=&voice[newchn];
}
}
} else {
if (i<control.max_voices) {
control.channel[i].slave_voice_index=i;
control.channel[i].slave_voice=&voice[i];
} else {
//This is a _DIRTY_ hack, but i cant think a better way.
control.channel[i].slave_voice_index=control.max_voices-1;
control.channel[i].slave_voice=&voice[control.max_voices-1];
}
}
/* assign parts of MP_VOICE only done for a KICK_NOTE */
if ( ( control.channel[i].slave_voice!=NULL ) ) {
voice_index=control.channel[i].slave_voice_index;
Voice_Control &v=voice[voice_index];
if (v.has_master_channel && (v.master_channel!=NULL) ) {
// If this voice already has a master channel, make sure to remove the reference to it.
v.master_channel->slave_voice=NULL;
}
//notify the voice that the current channel is the master
v.master_channel=&control.channel[i];
//set the voice as slave of the current channel
control.channel[i].slave_voice=&v;
//master channel index of the voice
v.master_channel_index=i;
v.has_master_channel=true;
}
} else {
// nope..
// so if we DO have a slave voice then use it.
if ( control.channel[i].slave_voice!=NULL ) {
voice_index=control.channel[i].slave_voice_index;
}
}
//assuming this channel has a slave voice..
if (voice_index>=0) {
// IMPROVE: Code a method for this:
voice[voice_index].update_info_from_master_channel();
}
control.channel[i].kick=KICK_NOTHING;
}
}
void CPPlayer::Voice_Control::reset() {
cp_memzero(this,sizeof(*this));
instrument_ptr=NULL;
sample_ptr=NULL;
has_master_channel=false;
instrument_index=-1;
reverb_send=0;
chorus_send=0;
filter.it_cutoff=255;
filter.it_reso=0;
display_volume=0;
}
void CPPlayer::Channel_Control::reset() {
int prev_gv =channel_global_volume;
cp_memzero(this,sizeof(*this));
slave_voice=NULL;
slave_voice_index=255;
mute=false;
old_note=255;
real_note=255;
instrument_index=255;
filter.it_cutoff=255;
filter.it_reso=0;
reverb_send=0;
chorus_send=0;
reserved=false;
carry.maybe=false;
last_event_usecs=-1;
channel_global_volume=prev_gv;
}
void CPPlayer::Voice_Control::update_info_from_master_channel() {
instrument_ptr=master_channel->instrument_ptr;
sample_ptr=master_channel->sample_ptr;
instrument_index=master_channel->instrument_index;
sample_index=master_channel->sample_index;
note=master_channel->note;
output_volume=master_channel->output_volume;
channel_volume=master_channel->channel_volume;
panning=master_channel->panning;
kick=master_channel->kick;
note_end_flags=master_channel->note_end_flags;
period=master_channel->period;
volume_envelope_ctrl.active=master_channel->volume_envelope_on;
panning_envelope_ctrl.active=master_channel->panning_envelope_on;
pitch_envelope_ctrl.active=master_channel->pitch_envelope_on;
NNA_type=master_channel->NNA_type;
reverb_send=master_channel->reverb_send;
chorus_send=master_channel->chorus_send;
// last_note_type=master_channel->last_note_type;
sample_start_index=master_channel->sample_start_index;
filter=master_channel->filter;
}
void CPPlayer::update_mixer() {
int tmp_mixer_period;
int32_t tmp_vibrato_value,tmp_vibrato_depth,tmp_volenv_value;
uint64_t tmpvol; // 64bits should be the only way to avoid getting notes raped out
int i;
control.voices_used=0;
for (i=0;i<control.max_voices;i++) {
int filter_env=-1;
Voice_Control &v=voice[i];
if ( !((v.kick==KICK_NOTE)||(v.kick==KICK_NOTEOFF)) && !is_voice_active(i))
continue;
//if voice doesnt have a sample set or size is 0.. forget it
if ( v.sample_ptr==NULL) continue;
//TODO set limits somewhere else
if (v.period<40) {
v.period=40;
} else if (v.period>50000) {
v.period=50000;
}
if ((v.kick==KICK_NOTE)||(v.kick==KICK_NOTEOFF)) {
int real_start_index;
if (v.sample_start_index==-1) {
real_start_index=0;
} else {
real_start_index=v.sample_start_index;
}
mixer->setup_voice(i,v.sample_ptr->get_sample_data(),real_start_index);
v.fadeout_volume=1024; //IT Docs it is 1024 internally
v.auto_vibrato_sweep_pos=0;
}
/* Start Envelopes */
if ( song->has_instruments() && ((v.kick==KICK_NOTE)||(v.kick==KICK_ENVELOPE))) {
// Voice_Control *carry=0;
if (v.has_master_channel && v.master_channel->carry.maybe) {
v.start_envelope(v.instrument_ptr->get_volume_envelope(),&v.volume_envelope_ctrl,&v.master_channel->carry.vol);
v.start_envelope(v.instrument_ptr->get_pan_envelope(),&v.panning_envelope_ctrl,&v.master_channel->carry.pan);
v.start_envelope(v.instrument_ptr->get_pitch_filter_envelope(),&v.pitch_envelope_ctrl,&v.master_channel->carry.pitch);
} else {
v.start_envelope(v.instrument_ptr->get_volume_envelope(),&v.volume_envelope_ctrl,NULL);
v.start_envelope(v.instrument_ptr->get_pan_envelope(),&v.panning_envelope_ctrl,NULL);
v.start_envelope(v.instrument_ptr->get_pitch_filter_envelope(),&v.pitch_envelope_ctrl,NULL);
}
}
v.kick=KICK_NOTHING;
if (song->has_instruments()) {
if (!v.process_envelope(v.instrument_ptr->get_volume_envelope(),&v.volume_envelope_ctrl))
v.volume_envelope_ctrl.value=64;
if (!v.process_envelope(v.instrument_ptr->get_pan_envelope(),&v.panning_envelope_ctrl))
v.panning_envelope_ctrl.value=0;
if (!v.process_envelope(v.instrument_ptr->get_pitch_filter_envelope(),&v.pitch_envelope_ctrl))
v.pitch_envelope_ctrl.value=0;
if (v.volume_envelope_ctrl.terminated) {
if (v.volume_envelope_ctrl.kill) {
v.fadeout_volume=0;
} else {
v.note_end_flags|=END_NOTE_FADE;
}
}
}
if (song->has_instruments()) {
tmp_volenv_value=v.volume_envelope_ctrl.value;
} else {
tmp_volenv_value=64;
}
/*printf("fadeout %i\n",(int)v.fadeout_volume);
printf("channel %i\n",(int)v.channel_volume);
printf("output %i\n",(int)v.output_volume);
printf("env %i\n",(int)tmp_volenv_value);
printf("cgb %i\n",(int)v.master_channel->channel_global_volume);
*/
tmpvol=(uint64_t)v.fadeout_volume; /* max 1024 - 10 bits */
tmpvol*=(uint64_t)v.channel_volume; /* * max 64 - 6 bits */
tmpvol*=(uint64_t)v.output_volume; /* * max 256 - 8 bits */
tmpvol*=(uint64_t)tmp_volenv_value; /* max 64 - 6 bits*/
tmpvol*=(uint64_t)v.master_channel->channel_global_volume;
v.display_volume=tmpvol>>22; //volume used for display purposes , 0 -- 256
tmpvol*=(uint64_t)song->get_mixing_volume(); /* max 128 - 7 bits */
tmpvol*=(uint64_t)control.global_volume; /* max 128 - 7 bits*/
/* total 10+6+8+6+7+7=44 bits */
tmpvol>>=43; /* Move back to 8 bits range , 44-19+8=43*/
if (tmpvol>CP_VOL_MAX)
tmpvol=CP_VOL_MAX;
//printf("volume check - fade %i, channel %i, output %i, env %i, mix %i, global %i -- final %i\n",v.fadeout_volume, v.channel_volume,v.output_volume,tmp_volenv_value, song->get_mixing_volume(),control.global_volume,tmpvol);
v.total_volume=tmpvol;
if ((v.master_channel!=NULL) && song->is_channel_mute( v.master_channel_index ) && !v.master_channel->reserved) {
mixer->set_voice_volume(i,0);
} else {
mixer->set_voice_volume(i,tmpvol);
if (v.fadeout_volume>0) control.voices_used++;
}
if (!song->is_stereo()) {
mixer->set_voice_panning(i,PAN_CENTER);
} else if (v.panning==PAN_SURROUND) {
mixer->set_voice_panning(i,PAN_SURROUND);
} else if (song->has_instruments()) {
int newpan,real_modifier;
real_modifier=(v.panning_envelope_ctrl.value*(PAN_CENTER-cp_intabs(v.panning-PAN_CENTER)))/32;
newpan=v.panning+real_modifier;
newpan=(newpan<PAN_LEFT)?PAN_LEFT:(newpan>PAN_RIGHT)?PAN_RIGHT:newpan;
//printf("panenv val: %i, finalpan val %i\n",v.panning_envelope_ctrl.value,newpan);
mixer->set_voice_panning(i,newpan);
} else {
mixer->set_voice_panning(i,v.panning);
}
/* VIBRATO */
if ( (v.period>0) && (v.sample_ptr->get_vibrato_depth()>0) ) {
switch (v.sample_ptr->get_vibrato_type()) {
case CPSample::VIBRATO_SINE:
tmp_vibrato_value=auto_vibrato_table[v.auto_vibrato_pos&127];
if (v.auto_vibrato_pos & 0x80) tmp_vibrato_value=-tmp_vibrato_value;
break;
case CPSample::VIBRATO_SQUARE:
tmp_vibrato_value=64;
if (v.auto_vibrato_pos & 0x80) tmp_vibrato_value=-tmp_vibrato_value;
break;
case CPSample::VIBRATO_SAW:
tmp_vibrato_value=63-(((v.auto_vibrato_pos+128)&255)>>1);
break;
default:
tmp_vibrato_value=(((v.auto_vibrato_pos+128)&255)>>1)-64;
break;
}
} else {
tmp_vibrato_value=0;
}
if ((v.auto_vibrato_sweep_pos>>8)<v.sample_ptr->get_vibrato_depth()) {
v.auto_vibrato_sweep_pos+=v.sample_ptr->get_vibrato_speed(); //FIXME - speed? i think so
tmp_vibrato_depth=v.auto_vibrato_sweep_pos;
} else {
tmp_vibrato_depth=v.sample_ptr->get_vibrato_depth()<<8;
}
tmp_vibrato_value=(tmp_vibrato_value*tmp_vibrato_depth)>>16;
if (song->has_linear_slides())
tmp_vibrato_value>>=1;
v.period-=tmp_vibrato_value;
/* update vibrato position */
v.auto_vibrato_pos=(v.auto_vibrato_pos+v.sample_ptr->get_vibrato_rate())&0xff;
/* process pitch envelope */
tmp_mixer_period=v.period;
if (v.pitch_envelope_ctrl.active) {
long aux_pitch_diff;
int pe_value=v.pitch_envelope_ctrl.value;
if (!v.instrument_ptr->is_pitch_use_as_filter()) {
if (((uint16_t)v.note<<1)+pe_value<=0)
pe_value=-(v.note<<1);
int smp_c5=CPSampleManager::get_singleton()->get_c5_freq( v.sample_ptr->get_sample_data());
int base=get_period(((uint16_t)v.note<<1),smp_c5);
int env=get_period(((uint16_t)v.note<<1)+pe_value,smp_c5);
/*
int env_next=(pe_value<0)?get_period(((uint16_t)(v.note-1)<<1)+pe_value,smp_c5):get_period(((uint16_t)(v.note+1)<<1)+pe_value,smp_c5);
env=env+(abs(v.pitch_envelope_ctrl.value)&((1<<CPEnvelope::FX_HEIGHT_BITS)-1))*(env_next-env)/(1<<CPEnvelope::FX_HEIGHT_BITS);
printf("env %i\n",env);
*/
aux_pitch_diff=env-base;
if ( ((int)tmp_mixer_period-aux_pitch_diff)<0 ) aux_pitch_diff=0;
tmp_mixer_period+=aux_pitch_diff;
} else {
filter_env=pe_value+32; //max 64
// printf("pitch envelope at %i",filter_env);
}
}
if (v.fadeout_volume==0 || (v.note_end_flags & END_NOTE_KILL)) { /* check for a dead note (fadevol=0) */
mixer->stop_voice(i);
} else {
int32_t freq=get_frequency(tmp_mixer_period);
int32_t tracker_c5=get_frequency(get_period(60<<1,CPSampleManager::get_singleton()->get_c5_freq( v.sample_ptr->get_sample_data())));
freq=(int32_t)((uint64_t)freq*(uint64_t)C5FREQ_MIXER/(uint64_t)tracker_c5); //numbers may become very high
mixer->set_voice_frequency(i,freq);
/* if keyfade, start substracting fadeoutspeed from fadevol: */
if ((song->has_instruments())&&(v.note_end_flags & END_NOTE_FADE)) {
if (v.fadeout_volume>=(v.instrument_ptr->get_volume_fadeout())) {
v.fadeout_volume-=(v.instrument_ptr->get_volume_fadeout());
} else {
v.fadeout_volume=0;
}
}
/*FILTARSSSSSSSS*/
v.filter.envelope_cutoff=filter_env;
v.filter.process();
if ((v.filter.final_cutoff<0xFF) && (control.filters)) {
//int final_cutoff;
//uint8_t final_reso;
//v.filter.set_filter_parameters( &final_cutoff, &final_reso );
mixer->set_voice_filter(i,true,v.filter.final_cutoff,v.filter.it_reso);
} else {
mixer->set_voice_filter(i,false,0,0);
}
/* RAIVERV */
mixer->set_voice_reverb_send(i,v.reverb_send);
/* CHAURUZ */
mixer->set_voice_chorus_send(i,v.chorus_send);
}
}
switch(song->get_reverb_mode()) {
case CPSong::REVERB_MODE_ROOM: {
mixer->set_reverb_mode( CPMixer::REVERB_MODE_ROOM );
} break;
case CPSong::REVERB_MODE_STUDIO_SMALL: {
mixer->set_reverb_mode( CPMixer::REVERB_MODE_STUDIO_SMALL );
} break;
case CPSong::REVERB_MODE_STUDIO_MEDIUM: {
mixer->set_reverb_mode( CPMixer::REVERB_MODE_STUDIO_MEDIUM );
} break;
case CPSong::REVERB_MODE_STUDIO_LARGE: {
mixer->set_reverb_mode( CPMixer::REVERB_MODE_STUDIO_LARGE );
} break;
case CPSong::REVERB_MODE_HALL: {
mixer->set_reverb_mode( CPMixer::REVERB_MODE_HALL );
} break;
case CPSong::REVERB_MODE_SPACE_ECHO: {
mixer->set_reverb_mode( CPMixer::REVERB_MODE_SPACE_ECHO );
} break;
case CPSong::REVERB_MODE_ECHO: {
mixer->set_reverb_mode( CPMixer::REVERB_MODE_ECHO );
} break;
case CPSong::REVERB_MODE_DELAY: {
mixer->set_reverb_mode( CPMixer::REVERB_MODE_DELAY );
} break;
case CPSong::REVERB_MODE_HALF_ECHO: {
mixer->set_reverb_mode( CPMixer::REVERB_MODE_HALF_ECHO );
} break;
}
mixer->set_chorus_params(song->get_chorus_delay_ms(),song->get_chorus_separation_ms(),song->get_chorus_depth_ms10(),song->get_chorus_speed_hz10() );
}
void CPPlayer::handle_tick() {
int i;
if ( mixer==NULL ) return;
if ( song==NULL ) return;
/* update time counter (sngtime is in milliseconds (in fact 2^-10)) */
if (control.ticks_counter>=control.speed) { // time to process... ***THE ROW***!
/* process pattern-delay. pf->patdly2 is the counter and pf->patdly is
the command memory. */
// if (control.pattern_delay_1) {
// control.pattern_delay_2=control.pattern_delay_1;
// control.pattern_delay_1=0;
// }
// if (control.pattern_delay_2) {
// patterndelay active
// if (--control.pattern_delay_2)
// so turn back pf->patpos by 1
// if (pf->patpos) pf->patpos--;
// }
if (control.play_mode!=PLAY_NOTHING) {
control.ticks_counter=0;
if (control.position.force_next_order>=0) {
control.position.current_order=control.position.force_next_order;
}
control.position.force_next_order=-1;
control.previous_position=control.position; // for those special cases...
control.position.forbid_jump=false;
for (i=0;i<CPPattern::WIDTH;i++) {
process_note(i,song->get_pattern(control.position.current_pattern)->get_note(i,control.position.current_row));
}
control.position.current_row++;
if ( control.position.current_row>=song->get_pattern(control.position.current_pattern)->get_length() ) {
if (control.play_mode==PLAY_SONG) {
int next_order;
next_order=get_song_next_order_idx(song,control.position.current_order);
if (next_order!=-1) {
// Do we have a "next order?"
control.position.current_pattern=song->get_order(next_order);
if (next_order<=control.position.current_order)
control.reached_end=true;
control.position.current_order=next_order;
} else {
// no, probably the user deleted the orderlist.
control.play_mode=PLAY_NOTHING;
reset();
control.reached_end=true;
}
}
control.position.current_row=0;
}
}
}
pre_process_effects();
process_NNAs();
setup_voices();
/* now set up the actual hardware channel playback information */
update_mixer();
control.ticks_counter++;
}
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