84 lines
2.2 KiB
C++
84 lines
2.2 KiB
C++
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/**
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* Furnace Tracker - multi-system chiptune tracker
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* Copyright (C) 2021-2024 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 "fileOpsCommon.h"
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bool DivEngine::loadIT(unsigned char* file, size_t len) {
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struct InvalidHeaderException {};
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bool success=false;
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char magic[4];
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SafeReader reader=SafeReader(file,len);
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warnings="";
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try {
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DivSong ds;
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ds.version=DIV_VERSION_XM;
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//ds.linearPitch=0;
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//ds.pitchMacroIsLinear=false;
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ds.noSlidesOnFirstTick=true;
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ds.rowResetsArpPos=true;
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ds.ignoreJumpAtEnd=false;
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ds.pitchSlideSpeed=12;
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logV("Impulse Tracker module");
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// load here
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if (!reader.seek(0,SEEK_SET)) {
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logE("premature end of file!");
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lastError="incomplete file";
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delete[] file;
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return false;
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}
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reader.read(magic,4);
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if (memcmp(magic,DIV_IT_MAGIC,4)!=0) {
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logW("the magic isn't complete");
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throw EndOfFileException(&reader,reader.tell());
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}
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ds.name=reader.readString(26);
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if (active) quitDispatch();
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BUSY_BEGIN_SOFT;
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saveLock.lock();
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song.unload();
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song=ds;
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changeSong(0);
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recalcChans();
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saveLock.unlock();
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BUSY_END;
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if (active) {
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initDispatch();
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BUSY_BEGIN;
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renderSamples();
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reset();
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BUSY_END;
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}
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success=true;
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} catch (EndOfFileException& e) {
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//logE("premature end of file!");
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lastError="incomplete file";
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} catch (InvalidHeaderException& e) {
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//logE("invalid header!");
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lastError="invalid header!";
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}
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return success;
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}
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