/*************************************************************************/
/*  cp_player_data_control.cpp                                           */
/*************************************************************************/
/*                       This file is part of:                           */
/*                           GODOT ENGINE                                */
/*                      https://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  */
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/*************************************************************************/

#include "cp_player_data.h"

void CPPlayer::play_start_pattern(int p_pattern) {

	play_start(p_pattern, -1, -1);
}

void CPPlayer::play_start_song() {

	play_start(-1, -1, -1);
}

void CPPlayer::play_start_song_from_order(int p_order) {

	play_start(-1, p_order, -1);
}

void CPPlayer::play_start_song_from_order_and_row(int p_order, int p_row) {

	play_start(-1, p_order, p_row);
}

void CPPlayer::play_start(int p_pattern, int p_order, int p_row, bool p_lock) {

	if (control.play_mode != PLAY_NOTHING) play_stop();

	reset();

	if (p_pattern != -1) {

		control.play_mode = PLAY_PATTERN;
		control.position.current_pattern = p_pattern;
		control.position.current_row = (p_row != -1) ? p_row : 0;

	} else {

		control.position.current_order = get_song_next_order_idx(song, (p_order == -1) ? p_order : p_order - 1);
		if (control.position.current_order != -1) {

			control.play_mode = PLAY_SONG;
			control.position.current_pattern = song->get_order(control.position.current_order);
			control.position.current_row = (p_row != -1) ? p_row : 0;
		}
	}

	control.reached_end = (control.play_mode == PLAY_NOTHING);
}

void CPPlayer::play_stop() {

	int i;

	control.play_mode = PLAY_NOTHING;

	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();
	}

	reset();
}

void CPPlayer::play_note(int p_channel, CPNote note, bool p_reserve) {

	if (control.play_mode == PLAY_NOTHING) {

		control.ticks_counter = 0;
	}

	/*control.channel[p_channel].reset();
	control.channel[p_channel].channel_volume=song->get_channel_volume(p_channel);
	control.channel[p_channel].channel_panning=((int)song->get_channel_pan( p_channel)*255/64);*/
	if (p_reserve) {
		control.channel[p_channel].mute = false;
		control.channel[p_channel].reserved = true;
	} else {

		control.channel[p_channel].reserved = false;
	}
	process_note(p_channel, note);
}

int CPPlayer::get_voice_volume(int p_voice) {

	return voice[p_voice].display_volume;
}

int CPPlayer::get_voice_envelope_pos(int p_voice, CPEnvelope *p_envelope) {

	int i, tmp_index = -1;

	i = p_voice;

	if ((song->has_instruments()) && (voice[i].instrument_ptr != NULL) && (voice[i].fadeout_volume > 0)) {

		if ((p_envelope == voice[i].instrument_ptr->get_volume_envelope()) && (voice[i].instrument_ptr->get_volume_envelope()->is_enabled())) {

			tmp_index = voice[i].volume_envelope_ctrl.pos_index;
		}

		if ((p_envelope == voice[i].instrument_ptr->get_pan_envelope()) && (voice[i].instrument_ptr->get_pan_envelope()->is_enabled())) {

			tmp_index = voice[i].panning_envelope_ctrl.pos_index;
		}

		if ((p_envelope == voice[i].instrument_ptr->get_pitch_filter_envelope()) && (voice[i].instrument_ptr->get_pitch_filter_envelope()->is_enabled())) {

			tmp_index = voice[i].pitch_envelope_ctrl.pos_index;
		}
	}

	return tmp_index;
}

void CPPlayer::goto_next_order() {

	if (control.play_mode != PLAY_SONG) return;

	control.position.current_row = 0;

	control.position.current_order = get_song_next_order_idx(song, control.position.current_order);

	if (control.position.current_order == -1) {

		reset();
	}

	control.position.current_pattern = song->get_order(control.position.current_order);
}
void CPPlayer::goto_previous_order() {

	if (control.play_mode != PLAY_SONG) return;

	int next_order, current_order;

	control.position.current_row = 0;

	current_order = control.position.current_order;

	next_order = get_song_next_order_idx(song, current_order);

	while ((next_order != control.position.current_order) && (next_order != -1)) {

		current_order = next_order;
		next_order = get_song_next_order_idx(song, current_order);
	}

	if (next_order == -1) {

		reset();
	} else {

		control.position.current_order = current_order;
		control.position.current_pattern = song->get_order(control.position.current_order);
	}
}

int CPPlayer::get_channel_voice(int p_channel) {

	if (control.channel[p_channel].slave_voice == NULL)
		return -1;
	else
		return control.channel[p_channel].slave_voice_index;
}

const char *CPPlayer::get_voice_sample_name(int p_voice) {

	const char *name = NULL;

	if (!voice[p_voice].sample_ptr) name = voice[p_voice].sample_ptr->get_name();

	return name;
}

bool CPPlayer::is_voice_active(int p_voice) {

	return !(((voice[p_voice].kick == KICK_NOTHING) || (voice[p_voice].kick == KICK_ENVELOPE)) && !mixer->is_voice_active(p_voice));
}

int CPPlayer::get_voice_envelope_pos(int p_voice, CPInstrument::EnvelopeType p_env_type) {

	if (!is_voice_active(p_voice))
		return -1;

	Voice_Control::Envelope_Control *env = 0;

	switch (p_env_type) {

		case CPInstrument::VOLUME_ENVELOPE: env = &voice[p_voice].volume_envelope_ctrl; break;
		case CPInstrument::PAN_ENVELOPE: env = &voice[p_voice].panning_envelope_ctrl; break;
		case CPInstrument::PITCH_ENVELOPE: env = &voice[p_voice].pitch_envelope_ctrl; break;
	}

	if (!env)
		return -1;

	if (!env->active || env->terminated)
		return -1;

	return env->pos_index;
}

CPEnvelope *CPPlayer::get_voice_envelope(int p_voice, CPInstrument::EnvelopeType p_env_type) {

	CPInstrument *ins = voice[p_voice].instrument_ptr;

	if (!ins)
		return 0;

	switch (p_env_type) {

		case CPInstrument::VOLUME_ENVELOPE: return ins->get_volume_envelope();
		case CPInstrument::PAN_ENVELOPE: return ins->get_pan_envelope();
		case CPInstrument::PITCH_ENVELOPE: return ins->get_pitch_filter_envelope();
	};

	return 0;
}

const char *CPPlayer::get_voice_instrument_name(int p_voice) {

	const char *name = NULL;

	if (voice[p_voice].instrument_ptr != NULL) name = voice[p_voice].instrument_ptr->get_name();

	return name;
}
void CPPlayer::set_filters_enabled(bool p_enable) {

	control.filters = p_enable;
}

int CPPlayer::get_voice_sample_index(int p_voice) {

	return voice[p_voice].sample_index;
}