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virtualx-engine/modules/chibi/cp_player_data_events.cpp
Rémi Verschelde e9b045d9e5 Add "Godot Engine contributors" copyright line
2017-04-08 00:45:24 +02:00

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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. */
/* Copyright (c) 2014-2017 Godot Engine contributors (cf. AUTHORS.md) */
/* */
/* 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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