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/* ScummVM Tools
*
* ScummVM Tools is the legal property of its developers, whose names
* are too numerous to list here. Please refer to the COPYRIGHT
* file distributed with this source distribution.
*
* 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 3 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, see <http://www.gnu.org/licenses/>.
*
*/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "extract_hdb.h"
#include <zlib.h>
ExtractHDB::ExtractHDB(const std::string &name) : Tool(name, TOOLTYPE_EXTRACTION) {
ToolInput input;
input.format = "*.*";
_inputPaths.push_back(input);
_outputToDirectory = true;
_shorthelp = "Used to extract Hyperspace Delivery Boy! archive files.";
_helptext = "\nUsage: " + getName() + " [-o /path/to/output/dir/] <inputfile>\n";
_compressed = false;
}
void ExtractHDB::execute() {
Common::Filename filename = _inputPaths[0].path;
if (!openMPC(filename))
error("Unable to open %s", filename.getFullName().c_str());
Common::File fOut;
for (Common::Array<MPCEntry *>::iterator it = _dir.begin(); it != _dir.end(); ++it) {
byte *buffer = (byte *)malloc((*it)->length);
_mpcFile.seek((*it)->offset, SEEK_SET);
_mpcFile.read_noThrow(buffer, (*it)->length);
_outputPath.setFullName((*it)->filename);
fOut.open(_outputPath, "wb");
if (_compressed) {
byte *buffer2 = (byte *)calloc((*it)->ulength, 1);
unsigned long len = (*it)->ulength;
print("... decompressing %s", (*it)->filename);
if (uncompress(buffer2, &len, buffer, (*it)->length) != Z_OK) {
print("Error uncompressing file %s", (*it)->filename);
fOut.write(buffer, (*it)->length);
} else if (len != (*it)->ulength) {
print("Size mismatch for %s: %d <> %d", (*it)->filename, len, (*it)->ulength);
fOut.write(buffer, (*it)->length);
} else {
fOut.write(buffer2, (*it)->ulength);
}
free(buffer2);
} else {
print("... %s", (*it)->filename);
fOut.write(buffer, (*it)->length);
}
fOut.close();
free(buffer);
}
_mpcFile.close();
}
InspectionMatch ExtractHDB::inspectInput(const Common::Filename &filename) {
// Accept either 'vol.cat' or 'vol.dat'
std::string file = filename.getFullName();
if (
scumm_stricmp(file.c_str(), "hyperspace.mpc") == 0 ||
scumm_stricmp(file.c_str(), "hyperspace.msd") == 0 ||
scumm_stricmp(file.c_str(), "hyperdemo.mpc") == 0 ||
scumm_stricmp(file.c_str(), "hyperdemo.msd") == 0
)
return IMATCH_PERFECT;
return IMATCH_AWFUL;
}
bool ExtractHDB::openMPC(Common::Filename &filename) {
uint32 offset;
_mpcFile.open(filename, "rb");
if (!_mpcFile.isOpen()) {
error("FileMan::openMPC(): Error reading the MSD/MPC file %s", filename.getFullName().c_str());
return false;
}
_dataHeader.id = _mpcFile.readUint32BE();
if (_dataHeader.id == 'MPCC') {
print("COMPRESSED MPC FILE");
return false;
} else if (_dataHeader.id == 'MPCU') {
print("Unpacking uncompressed MPC file...");
// we're fine
} else if (_dataHeader.id == 'MSDC') {
print("Unpacking compressed MSD file...");
_compressed = true;
// we're fine
} else if (_dataHeader.id == 'MSDU') {
print("UNCOMPRESSED MSD FILE");
return false;
} else {
error("Invalid MPC/MSD File.");
return false;
}
// read the directory
offset = _mpcFile.readUint32LE();
_mpcFile.seek((int32)offset, SEEK_SET);
// Note: The MPC archive format assumes the offset to be uint32,
// but Common::File::seek() takes the offset as int32.
_dataHeader.dirSize = _mpcFile.readUint32LE();
print("MPCU: Read %d entries", _dataHeader.dirSize);
for (uint32 fileIndex = 0; fileIndex < _dataHeader.dirSize; fileIndex++) {
MPCEntry *dirEntry = new MPCEntry();
for (int i = 0; i < 64; i++) {
dirEntry->filename[i] = _mpcFile.readByte();
}
dirEntry->offset = _mpcFile.readUint32LE();
dirEntry->length = _mpcFile.readUint32LE();
dirEntry->ulength = _mpcFile.readUint32LE();
dirEntry->type = (DataType)_mpcFile.readUint32LE();
_dir.push_back(dirEntry);
}
return true;
}
#ifdef STANDALONE_MAIN
int main(int argc, char *argv[]) {
ExtractHDB hdb(argv[0]);
return hdb.run(argc, argv);
}
#endif
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