furnace/src/engine/song.cpp

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/**
* Furnace Tracker - multi-system chiptune tracker
* Copyright (C) 2021-2022 tildearrow and contributors
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#include "song.h"
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#include "../ta-log.h"
void DivSubSong::clearData() {
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for (int i=0; i<DIV_MAX_CHANS; i++) {
pat[i].wipePatterns();
}
memset(orders.ord,0,DIV_MAX_CHANS*256);
ordersLen=1;
}
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void DivSubSong::optimizePatterns() {
for (int i=0; i<DIV_MAX_CHANS; i++) {
logD("optimizing channel %d...",i);
std::vector<std::pair<int,int>> clearOuts=pat[i].optimize();
for (auto& j: clearOuts) {
for (int k=0; k<256; k++) {
if (orders.ord[i][k]==j.first) {
orders.ord[i][k]=j.second;
}
}
}
}
}
void DivSubSong::rearrangePatterns() {
for (int i=0; i<DIV_MAX_CHANS; i++) {
logD("re-arranging channel %d...",i);
std::vector<std::pair<int,int>> clearOuts=pat[i].rearrange();
for (auto& j: clearOuts) {
for (int k=0; k<256; k++) {
if (orders.ord[i][k]==j.first) {
orders.ord[i][k]=j.second;
}
}
}
}
}
void DivSong::clearSongData() {
for (DivSubSong* i: subsong) {
i->clearData();
delete i;
}
subsong.clear();
subsong.push_back(new DivSubSong);
}
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void DivSong::clearInstruments() {
for (DivInstrument* i: ins) {
delete i;
}
ins.clear();
insLen=0;
}
void DivSong::clearWavetables() {
for (DivWavetable* i: wave) {
delete i;
}
wave.clear();
waveLen=0;
}
void DivSong::clearSamples() {
for (DivSample* i: sample) {
delete i;
}
sample.clear();
sampleLen=0;
}
void DivSong::unload() {
for (DivInstrument* i: ins) {
delete i;
}
ins.clear();
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insLen=0;
for (DivWavetable* i: wave) {
delete i;
}
wave.clear();
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waveLen=0;
for (DivSample* i: sample) {
delete i;
}
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sample.clear();
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sampleLen=0;
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for (DivSubSong* i: subsong) {
i->clearData();
delete i;
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}
subsong.clear();
}