/*************************************************************************/
/*  cp_player_data_nna.cpp                                               */
/*************************************************************************/
/*                       This file is part of:                           */
/*                           GODOT ENGINE                                */
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/* Copyright (c) 2007-2019 Juan Linietsky, Ariel Manzur.                 */
/* Copyright (c) 2014-2019 Godot Engine contributors (cf. AUTHORS.md)    */
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/*************************************************************************/

#include "cp_player_data.h"

void CPPlayer::process_NNAs() {

	int i;

	if (!song->has_instruments()) return;

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

		Channel_Control *aux_chn_ctrl = &control.channel[i];

		if (aux_chn_ctrl->kick == KICK_NOTE) {

			bool k = false;

			if (aux_chn_ctrl->slave_voice != NULL) {

				Voice_Control *aux_voc_ctrl;

				aux_voc_ctrl = aux_chn_ctrl->slave_voice;

				if (aux_chn_ctrl->instrument_index == aux_chn_ctrl->slave_voice->instrument_index) { //maybe carry

					aux_chn_ctrl->carry.pan = aux_chn_ctrl->slave_voice->panning_envelope_ctrl;
					aux_chn_ctrl->carry.vol = aux_chn_ctrl->slave_voice->volume_envelope_ctrl;
					aux_chn_ctrl->carry.pitch = aux_chn_ctrl->slave_voice->pitch_envelope_ctrl;
					aux_chn_ctrl->carry.maybe = true;
				} else
					aux_chn_ctrl->carry.maybe = false;

				if (aux_voc_ctrl->NNA_type != CPInstrument::NNA_NOTE_CUT) {
					/* Make sure the old MP_VOICE channel knows it has no
					   master now ! */

					aux_chn_ctrl->slave_voice = NULL;
					/* assume the channel is taken by NNA */
					aux_voc_ctrl->has_master_channel = false;

					switch (aux_voc_ctrl->NNA_type) {
						case CPInstrument::NNA_NOTE_CONTINUE: {

						} break;
						case CPInstrument::NNA_NOTE_OFF: {

							aux_voc_ctrl->note_end_flags |= END_NOTE_OFF;

							if (!aux_voc_ctrl->volume_envelope_ctrl.active || aux_voc_ctrl->instrument_ptr->get_volume_envelope()->is_loop_enabled()) {
								aux_voc_ctrl->note_end_flags |= END_NOTE_FADE;
							}
						} break;
						case CPInstrument::NNA_NOTE_FADE: {

							aux_voc_ctrl->note_end_flags |= END_NOTE_FADE;
						} break;
					}
				}
			}

			if (aux_chn_ctrl->duplicate_check_type != CPInstrument::DCT_DISABLED) {
				int i;

				for (i = 0; i < control.max_voices; i++) {
					if (!mixer->is_voice_active(i) ||
							(voice[i].master_channel != aux_chn_ctrl) ||
							(aux_chn_ctrl->instrument_index != voice[i].instrument_index))
						continue;

					Voice_Control *aux_voc_ctrl;

					aux_voc_ctrl = &voice[i];

					k = false;
					switch (aux_chn_ctrl->duplicate_check_type) {
						case CPInstrument::DCT_NOTE:
							if (aux_chn_ctrl->note == aux_voc_ctrl->note)
								k = true;
							break;
						case CPInstrument::DCT_SAMPLE:
							if (aux_chn_ctrl->sample_ptr == aux_voc_ctrl->sample_ptr)
								k = true;
							break;
						case CPInstrument::DCT_INSTRUMENT:
							k = true;
							break;
					}
					if (k) {
						switch (aux_chn_ctrl->duplicate_check_action) {
							case CPInstrument::DCA_NOTE_CUT: {
								aux_voc_ctrl->fadeout_volume = 0;
							} break;
							case CPInstrument::DCA_NOTE_OFF: {

								aux_voc_ctrl->note_end_flags |= END_NOTE_OFF;

								if (!aux_voc_ctrl->volume_envelope_ctrl.active || aux_chn_ctrl->instrument_ptr->get_volume_envelope()->is_loop_enabled()) {

									aux_voc_ctrl->note_end_flags |= END_NOTE_FADE;
								}

							} break;
							case CPInstrument::DCA_NOTE_FADE: {
								aux_voc_ctrl->note_end_flags |= END_NOTE_FADE;
							} break;
						}
					}
				}
			}
		} /* if (aux_chn_ctrl->kick==KICK_NOTE) */
	}
}