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/************
*
* This file is part of a tool for reading 3D content in the PRC format.
* Copyright (C) 2008 Orest Shardt <shardtor (at) gmail dot com>
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser 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 Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
*************/
#include "bitData.h"
#include "iPRCFile.h"
#include "describePRC.h"
using std::vector; using std::istream; using std::ios;
using std::cout; using std::endl; using std::cerr;
using std::string;
using std::ofstream;
using std::ostringstream;
void iPRCFile::dumpSections(string prefix)
{
ofstream out;
for(unsigned int i = 0; i < fileStructures.size(); ++i)
{
ostringstream name;
name << prefix << "Structure" << i;
out.open((name.str()+"-Globals.bin").c_str());
out.write(fileStructures[i].sections[GLOBALS_SECTION],fileStructures[i].sectionLengths[GLOBALS_SECTION]);
out.close();
out.open((name.str()+"-Tree.bin").c_str());
out.write(fileStructures[i].sections[TREE_SECTION],fileStructures[i].sectionLengths[TREE_SECTION]);
out.close();
out.open((name.str()+"-Tessellation.bin").c_str());
out.write(fileStructures[i].sections[TESSELLATION_SECTION],fileStructures[i].sectionLengths[TESSELLATION_SECTION]);
out.close();
out.open((name.str()+"-Geometry.bin").c_str());
out.write(fileStructures[i].sections[GEOMETRY_SECTION],fileStructures[i].sectionLengths[GEOMETRY_SECTION]);
out.close();
out.open((name.str()+"-ExtraGeometry.bin").c_str());
out.write(fileStructures[i].sections[EXTRA_GEOMETRY_SECTION],fileStructures[i].sectionLengths[EXTRA_GEOMETRY_SECTION]);
out.close();
}
out.open((prefix+"-ModelFile.bin").c_str());
out.write(modelFileData,modelFileLength);
out.close();
}
void iPRCFile::describe()
{
/*
for(int i = 0; i < modelFileLength; ++i)
{
cout << ' ' << std::hex << std::setw(2) << std::setfill('0') << static_cast<unsigned int>(static_cast<unsigned char>(mfd.readChar()));
if(i%16 == 15)
cout << endl;
}
cout << endl;
*/
unFlushSerialization();
for(unsigned int i = 0; i < fileStructures.size(); ++i)
{
cout << "File Structure " << i << ":" << endl;
//describe header
char *header = buffer + fileStructureInfos[i].offsets[0];
cout << "--Header Section--" << endl;
cout << " Signature " << header[0] << header[1] << header[2] << endl;
cout << " Minimal version for read " << *(unsigned int*)(header+3) << endl;
cout << " Authoring version " << *(unsigned int*)(header+7) << endl;
cout << std::hex;
cout << " File structure UUID " << *(unsigned int*)(header+11) << ' ' << *(unsigned int*)(header+15) << ' '
<< *(unsigned int*)(header+19) << ' ' << *(unsigned int*)(header+23) << endl;
cout << " Application UUID " << *(unsigned int*)(header+27) << ' ' << *(unsigned int*)(header+31) << ' '
<< *(unsigned int*)(header+35) << ' ' << *(unsigned int*)(header+39) << endl;
cout << std::dec;
// uncompressed files
unsigned int numberOfUncompressedFiles = *(unsigned int*)(header+43);
cout << "Number of uncompressed files " << numberOfUncompressedFiles << endl;
char *position = header+47;
for(unsigned int j = 0; j < numberOfUncompressedFiles; ++j)
{
cout << "Uncompressed file " << j << ":" << endl;
unsigned int size = *(unsigned int*)position;
cout << " size " << size << " bytes" << endl;
position += size+sizeof(unsigned int);
}
BitByBitData fileStruct(fileStructures[i].sections[GLOBALS_SECTION],fileStructures[i].sectionLengths[GLOBALS_SECTION]);
describeSchema(fileStruct);
describeGlobals(fileStruct);
unFlushSerialization();
fileStruct = BitByBitData(fileStructures[i].sections[TREE_SECTION],fileStructures[i].sectionLengths[TREE_SECTION]);
describeTree(fileStruct);
unFlushSerialization();
fileStruct = BitByBitData(fileStructures[i].sections[TESSELLATION_SECTION],fileStructures[i].sectionLengths[TESSELLATION_SECTION]);
describeTessellation(fileStruct);
unFlushSerialization();
fileStruct = BitByBitData(fileStructures[i].sections[GEOMETRY_SECTION],fileStructures[i].sectionLengths[GEOMETRY_SECTION]);
describeGeometry(fileStruct);
unFlushSerialization();
fileStruct = BitByBitData(fileStructures[i].sections[EXTRA_GEOMETRY_SECTION],fileStructures[i].sectionLengths[EXTRA_GEOMETRY_SECTION]);
describeExtraGeometry(fileStruct);
unFlushSerialization();
}
BitByBitData mfd(modelFileData,modelFileLength);
describeSchema(mfd);
describeModelFileData(mfd,fileStructures.size());
unFlushSerialization();
}
iPRCFile::iPRCFile(istream& in)
{
char PRC[3];
in.read(PRC,3);
if(PRC[0] != 'P' || PRC[1] != 'R' || PRC[2] != 'C')
{
cerr << "Error: Invalid file format: PRC not found." << endl;
}
unsigned int versionForRead,authoringVersion;
in.read((char*)&versionForRead,sizeof(versionForRead));
in.read((char*)&authoringVersion,sizeof(authoringVersion));
cout << "Version for reading " << versionForRead << endl;
cout << "Authoring version " << authoringVersion << endl;
unsigned int fileStructureUUID[4];
in.read((char*)fileStructureUUID,sizeof(fileStructureUUID));
//(void*) is for formatting
cout << "File structure UUID " << (void*)(fileStructureUUID[0]) << ' ' << (void*)(fileStructureUUID[1]) << ' '
<< (void*)(fileStructureUUID[2]) << ' ' << (void*)(fileStructureUUID[3]) << endl;
unsigned int applicationUUID[4];
in.read((char*)applicationUUID,sizeof(applicationUUID));
cout << "Application UUID " << (void*)(applicationUUID[0]) << ' ' << (void*)(applicationUUID[1]) << ' '
<< (void*)(applicationUUID[2]) << ' ' << (void*)(applicationUUID[3]) << endl;
unsigned int numberOfFileStructures;
in.read((char*)&numberOfFileStructures,sizeof(numberOfFileStructures));
cout << "number of file structures " << numberOfFileStructures << endl;
// load fileStructureInformation
for(unsigned int fsi = 0; fsi < numberOfFileStructures; ++fsi)
{
FileStructureInformation info;
in.read((char*)&info.UUID,sizeof(info.UUID));
cout << "\tFile structure UUID " << (void*)(info.UUID[0]) << ' ' << (void*)(info.UUID[1]) << ' '
<< (void*)(info.UUID[2]) << ' ' << (void*)(info.UUID[3]) << endl;
in.read((char*)&info.reserved,sizeof(info.reserved));
cout << "\tReserved " << info.reserved << endl;
unsigned int numberOfOffsets;
in.read((char*)&numberOfOffsets,sizeof(numberOfOffsets));
cout << "\tNumber of Offsets " << numberOfOffsets << endl;
for(unsigned int oi = 0; oi < numberOfOffsets; ++oi)
{
unsigned int offset;
in.read((char*)&offset,sizeof(offset));
info.offsets.push_back(offset);
cout << "\t\tOffset " << offset << endl;
}
fileStructureInfos.push_back(info);
}
in.read((char*)&modelFileOffset,sizeof(modelFileOffset));
cout << "Model file offset " << modelFileOffset << endl;
in.read((char*)&fileSize,sizeof(fileSize)); // this is not documented
cout << "File size " << fileSize << endl;
in.read((char*)&numberOfUncompressedFiles,sizeof(numberOfUncompressedFiles));
cout << "Number of uncompressed files " << numberOfUncompressedFiles << endl;
for(unsigned int ufi = 0; ufi < numberOfUncompressedFiles; ++ufi)
{
unsigned int size;
in.read((char*)&size,sizeof(size));
in.seekg(size,ios::cur);
}
//read the whole file into memory
in.seekg(0,ios::beg);
buffer = new char[fileSize];
if(!buffer) cerr << "Couldn't get memory." << endl;
in.read(buffer,fileSize);
//decompress fileStructures
for(unsigned int fs = 0; fs < fileStructureInfos.size(); ++fs)
{
fileStructures.push_back(FileStructure());
for(unsigned int i = 1; i < fileStructureInfos[fs].offsets.size(); ++i) // start at 1 since header is decompressed
{
fileStructures[fs].sections[i-1] = NULL;
unsigned int offset = fileStructureInfos[fs].offsets[i];
fileStructures[fs].sectionLengths[i-1] = decompress(buffer+offset,fileSize-offset,fileStructures[fs].sections[i-1]);
}
}
//decompress modelFileData
modelFileData = NULL;
modelFileLength = decompress(buffer+modelFileOffset,fileSize-modelFileOffset,modelFileData);
}
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