godot/modules/chibi/cp_player_data_utils.cpp

/*************************************************************************/
/*  cp_player_data_utils.cpp                                             */
/*************************************************************************/
/*                       This file is part of:                           */
/*                           GODOT ENGINE                                */
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/* Copyright (c) 2007-2017 Juan Linietsky, Ariel Manzur.                 */
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#include "cp_player_data.h"
uint8_t CPPlayer::vibrato_table[32]={
          0, 24, 49, 74, 97,120,141,161,180,197,212,224,235,244,250,253,
        255,253,250,244,235,224,212,197,180,161,141,120, 97, 74, 49, 24
};

uint8_t CPPlayer::auto_vibrato_table[128]={
	 0, 1, 3, 4, 6, 7, 9,10,12,14,15,17,18,20,21,23,
	24,25,27,28,30,31,32,34,35,36,38,39,40,41,42,44,
	45,46,47,48,49,50,51,52,53,54,54,55,56,57,57,58,
	59,59,60,60,61,61,62,62,62,63,63,63,63,63,63,63,
	64,63,63,63,63,63,63,63,62,62,62,61,61,60,60,59,
	59,58,57,57,56,55,54,54,53,52,51,50,49,48,47,46,
	45,44,42,41,40,39,38,36,35,34,32,31,30,28,27,25,
	24,23,21,20,18,17,15,14,12,10, 9, 7, 6, 4, 3, 1
};


int8_t  CPPlayer::panbrello_table[256]={
          0,  2,  3,  5,  6,  8,  9, 11, 12, 14, 16, 17, 19, 20, 22, 23,
         24, 26, 27, 29, 30, 32, 33, 34, 36, 37, 38, 39, 41, 42, 43, 44,
         45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 56, 57, 58, 59,
         59, 60, 60, 61, 61, 62, 62, 62, 63, 63, 63, 64, 64, 64, 64, 64,
         64, 64, 64, 64, 64, 64, 63, 63, 63, 62, 62, 62, 61, 61, 60, 60,
         59, 59, 58, 57, 56, 56, 55, 54, 53, 52, 51, 50, 49, 48, 47, 46,
         45, 44, 43, 42, 41, 39, 38, 37, 36, 34, 33, 32, 30, 29, 27, 26,
         24, 23, 22, 20, 19, 17, 16, 14, 12, 11,  9,  8,  6,  5,  3,  2,
          0,- 2,- 3,- 5,- 6,- 8,- 9,-11,-12,-14,-16,-17,-19,-20,-22,-23,
        -24,-26,-27,-29,-30,-32,-33,-34,-36,-37,-38,-39,-41,-42,-43,-44,
        -45,-46,-47,-48,-49,-50,-51,-52,-53,-54,-55,-56,-56,-57,-58,-59,
        -59,-60,-60,-61,-61,-62,-62,-62,-63,-63,-63,-64,-64,-64,-64,-64,
        -64,-64,-64,-64,-64,-64,-63,-63,-63,-62,-62,-62,-61,-61,-60,-60,
        -59,-59,-58,-57,-56,-56,-55,-54,-53,-52,-51,-50,-49,-48,-47,-46,
        -45,-44,-43,-42,-41,-39,-38,-37,-36,-34,-33,-32,-30,-29,-27,-26,
        -24,-23,-22,-20,-19,-17,-16,-14,-12,-11,- 9,- 8,- 6,- 5,- 3,- 2
};






int32_t CPPlayer::get_period(uint16_t p_note,int32_t p_c5speed) {

	if (song->has_linear_slides()) {

		return CPTables::get_linear_period(p_note,0);
	} else {
		
		
		return CPTables::get_log_period(p_note>>1,p_c5speed >>1);
	}
}


int32_t CPPlayer::get_frequency(int32_t period) {

	if (song->has_linear_slides()) {

		return CPTables::get_linear_frequency(period);
	} else {

		return CPTables::get_old_frequency(period);
	}
}

int CPPlayer::find_empty_voice() {

	int i;
	int min_priority,min_priority_chan=0,priority;

	for (i=0;i<control.max_voices;i++) {
		
                if ( ((voice[i].kick==KICK_NOTHING)||(voice[i].kick==KICK_ENVELOPE))&&!mixer->is_voice_active(i) ) {
		
			return i;

		}
	}

	// todo more

 	for (i=0;i<control.max_voices;i++) {
		/* allow us to take over a nonexisting sample */
		/*
		if ((voice[i].s==NULL)
			return k;
		*/

		if ((voice[i].kick==KICK_NOTHING)||(voice[i].kick==KICK_ENVELOPE)) {

			priority=voice[i].total_volume<<((CPSampleManager::get_singleton()->get_loop_type( voice[i].sample_ptr->get_sample_data())!=CP_LOOP_NONE)?1:0);

			if ((voice[i].has_master_channel)&&(&voice[i]==voice[i].master_channel->slave_voice)) {

				priority<<=2;

			}

			if ((i==0) || (priority<min_priority)) {
				min_priority=priority;
				min_priority_chan=i;
			}
		}
	}

	if (min_priority>8000*7) return -1; /* what the fuck is this? */

	return min_priority_chan;
}