mirror of
https://github.com/tildearrow/furnace.git
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99 lines
2.5 KiB
C++
99 lines
2.5 KiB
C++
/**
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* Furnace Tracker - multi-system chiptune tracker
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* Copyright (C) 2021-2022 tildearrow and contributors
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*/
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#include "engine.h"
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#include "../ta-log.h"
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static DivPattern emptyPat;
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DivPattern::DivPattern() {
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memset(data,-1,256*32*sizeof(short));
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for (int i=0; i<256; i++) {
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data[i][0]=0;
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data[i][1]=0;
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}
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}
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DivPattern* DivChannelData::getPattern(int index, bool create) {
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if (data[index]==NULL) {
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if (create) {
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data[index]=new DivPattern;
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} else {
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return &emptyPat;
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}
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}
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return data[index];
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}
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std::vector<std::pair<int,int>> DivChannelData::optimize() {
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std::vector<std::pair<int,int>> ret;
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for (int i=0; i<256; i++) {
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if (data[i]!=NULL) {
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// compare
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for (int j=0; j<256; j++) {
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if (j==i) continue;
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if (data[j]==NULL) continue;
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if (memcmp(data[i]->data,data[j]->data,256*32*sizeof(short))==0) {
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delete data[j];
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data[j]=NULL;
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logV("%d == %d",i,j);
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ret.push_back(std::pair<int,int>(j,i));
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}
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}
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}
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}
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return ret;
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}
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std::vector<std::pair<int,int>> DivChannelData::rearrange() {
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std::vector<std::pair<int,int>> ret;
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for (int i=0; i<256; i++) {
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if (data[i]==NULL) {
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for (int j=i; j<256; j++) {
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if (data[j]!=NULL) {
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data[i]=data[j];
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data[j]=NULL;
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logV("%d -> %d",j,i);
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ret.push_back(std::pair<int,int>(j,i));
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if (++i>=256) break;
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}
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}
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}
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}
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return ret;
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}
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void DivChannelData::wipePatterns() {
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for (int i=0; i<256; i++) {
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if (data[i]!=NULL) {
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delete data[i];
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data[i]=NULL;
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}
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}
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}
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void DivPattern::copyOn(DivPattern* dest) {
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dest->name=name;
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memcpy(dest->data,data,sizeof(data));
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}
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DivChannelData::DivChannelData():
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effectCols(1) {
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memset(data,0,256*sizeof(void*));
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}
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