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godot/modules/chibi/cp_player_data_events.cpp
Rémi Verschelde d8223ffa75 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!

(cherry picked from commit c7bc44d5ad)
2017-01-12 19:15:30 +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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