godot/modules/chibi/cp_player_data.cpp

/*************************************************************************/
/*  cp_player_data.cpp                                                   */
/*************************************************************************/
/*                       This file is part of:                           */
/*                           GODOT ENGINE                                */
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/* Copyright (c) 2007-2020 Juan Linietsky, Ariel Manzur.                 */
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#include "cp_player_data.h"
#include <stdio.h>

CPPlayer::CPPlayer(CPMixer *p_mixer, CPSong *p_song) {

	song = p_song;
	mixer = p_mixer;
	control.max_voices = p_mixer->get_total_voice_count() - 1; //leave one for the sample
	control.force_no_nna = false;
	control.external_vibrato = false;
	control.filters = true;
	control.random_seed = 128364; //anything
	control.play_mode = 0;
	set_virtual_channels(p_mixer->get_total_voice_count());
	mixer->set_callback(&CPPlayer::callback_function, this);

	reset();
}
CPPlayer::~CPPlayer() {
}

void CPPlayer::set_virtual_channels(int p_amount) {

	if (p_amount < 1) return;
	if (p_amount > mixer->get_total_voice_count())
		return;

	control.max_voices = p_amount;
}

void CPPlayer::callback_function(void *p_userdata) {

	CPPlayer *pd = (CPPlayer *)p_userdata;
	pd->process_tick();
}

void CPPlayer::process_tick() {

	handle_tick();
	mixer->set_callback_interval(2500000 / control.tempo);
	song_usecs += 2500000 / control.tempo;
}

void CPPlayer::reset() {

	if (mixer == NULL) return;
	if (song == NULL) return;

	int i;

	for (i = 0; i < control.max_voices; i++) {

		voice[i].reset();
		mixer->stop_voice(i);
	}

	for (i = 0; i < CPPattern::WIDTH; i++) {

		control.channel[i].reset();
		control.channel[i].channel_volume = song->get_channel_volume(i);
		control.channel[i].channel_panning = ((int)song->get_channel_pan(i) * PAN_RIGHT / 64);
		if (song->is_channel_surround(i))
			control.channel[i].channel_panning = PAN_SURROUND;
		control.channel[i].mute = song->is_channel_mute(i);
		control.channel[i].chorus_send = song->get_channel_chorus(i) * 0xFF / 64;
		control.channel[i].reverb_send = song->get_channel_reverb(i) * 0xFF / 64;
	}

	control.speed = song->get_speed();
	control.tempo = song->get_tempo();
	control.global_volume = song->get_global_volume();

	control.position.current_pattern = 0;
	control.position.current_row = 0;
	control.position.current_order = 0;
	control.position.force_next_order = -1;
	control.ticks_counter = control.speed;
	control.position.forbid_jump = false;

	song_usecs = 0;
}

int64_t CPPlayer::get_channel_last_note_time_usec(int p_channel) const {

	CP_FAIL_INDEX_V(p_channel, 64, -1);
	return control.channel[p_channel].last_event_usecs;
}

void CPPlayer::set_channel_global_volume(int p_channel, int p_volume) {

	CP_FAIL_INDEX(p_channel, 64);
	control.channel[p_channel].channel_global_volume = CLAMP(p_volume, 0, 255);
}

int CPPlayer::get_channel_global_volume(int p_channel) const {

	CP_FAIL_INDEX_V(p_channel, 64, -1);
	return control.channel[p_channel].channel_global_volume;
}

bool CPPlayer::reached_end_of_song() {

	return control.reached_end;
}
void CPPlayer::set_force_external_vibratos(bool p_force) {

	control.external_vibrato = p_force;
}
void CPPlayer::set_force_no_nna(bool p_force) {

	control.force_no_nna = p_force;
}