Retro68/ResourceFiles/ResourceFork.cc

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#include "ResourceFork.h"
#include "BinaryIO.h"
#include <iostream>
#include <map>
#include <vector>
void Resources::addResources(const Resources& res)
{
for(auto& rr : res.resources)
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addResource(rr.second);
}
void Resources::writeFork(std::ostream& out) const
{
std::streampos start = out.tellp();
longword(out,0x100);
longword(out,0);
longword(out,0);
longword(out,0);
for(int i = 0; i < 0x100 - 16; i++)
byte(out, 0);
std::map< ResType, std::map<int, int> > resourceInfos;
std::streampos datastart = out.tellp();
for(auto& rr : resources)
{
const Resource& r = rr.second;
const std::string& data = r.getData();
resourceInfos[ r.getType() ][ r.getID() ] = out.tellp() - datastart;
longword(out, data.size());
out << data;
}
std::streampos dataend = out.tellp();
// while(out.tellp() % 0x100)
// out.put(0);
std::streampos resmap = out.tellp();
for(int i = 0; i < 16+4+2+2; i++)
byte(out, 0);
word(out,16+4+2+2+2+2); // offset to resource type list
std::streampos resnameOffset = out.tellp();
word(out,0);
std::streampos typelist = out.tellp();
word(out,resourceInfos.size() - 1);
for(std::map< ResType, std::map<int, int> >::iterator p = resourceInfos.begin();
p != resourceInfos.end(); ++p)
{
if(p->second.size())
{
ostype(out,p->first);
word(out,p->second.size()-1);
word(out,0); // replaced later
}
}
int typeIndex = 0;
int nameOffset = 0;
for(std::map< ResType, std::map<int, int> >::iterator p = resourceInfos.begin();
p != resourceInfos.end(); ++p)
{
if(p->second.size())
{
std::streampos pos = out.tellp();
out.seekp((int)typelist + 2 + 8 * typeIndex + 6);
word(out, pos - typelist);
out.seekp(pos);
typeIndex++;
for(std::map<int,int>::iterator q = p->second.begin(); q != p->second.end(); ++q)
{
std::string name = resources.find(ResRef(p->first, q->first))->second.getName();
word(out,q->first);
if(name.size() == 0)
word(out,-1);
else
{
word(out, nameOffset);
nameOffset += (name.size() > 255 ? 255 : name.size()) + 1;
}
longword(out,q->second);
longword(out,0);
}
}
}
std::streampos resnames = out.tellp();
out.seekp(resnameOffset);
word(out, resnames - resmap);
out.seekp(resnames);
for(std::map< ResType, std::map<int, int> >::iterator p = resourceInfos.begin();
p != resourceInfos.end(); ++p)
{
for(std::map<int,int>::iterator q = p->second.begin(); q != p->second.end(); ++q)
{
std::string name = resources.find(ResRef(p->first, q->first))->second.getName();
if(name.size() > 0)
{
int sz = name.size() > 255 ? 255 : name.size();
byte(out, sz);
for(int i = 0; i < sz; i++)
byte(out, name[i]);
}
}
}
std::streampos end = out.tellp();
out.seekp(start + std::streampos(4));
longword(out, resmap - start);
longword(out, dataend - start - std::streampos(0x100));
longword(out, end - resmap);
out.seekp(end);
}
Resources::Resources(std::istream &in)
{
std::streampos start = in.tellg();
int resdataOffset = longword(in);
int resmapOffset = longword(in);
in.seekg(start + std::streampos(resmapOffset + 16 + 4 + 2 + 2));
int typeListOffset = word(in);
int nameListOffset = word(in);
int nTypes = (word(in) + 1) & 0xFFFF;
for(int i = 0; i < nTypes; i++)
{
in.seekg(start + std::streampos(resmapOffset + typeListOffset + 2 + i * 8));
std::string type = ostype(in);
int nRes = (word(in) + 1) & 0xFFFF;
int refListOffset = word(in);
for(int j = 0; j < nRes; j++)
{
in.seekg(start + std::streampos(resmapOffset + typeListOffset + refListOffset + j * 12));
int id = word(in);
int nameOffset = word(in);
int attr = byte(in);
int off1 = byte(in);
int off2 = byte(in);
int off3 = byte(in);
int offset = (off1 << 16) | (off2 << 8) | off3;
std::string name;
if(nameOffset != 0xFFFF)
{
in.seekg(start + std::streampos(resmapOffset + nameListOffset + nameOffset));
int nameLen = byte(in);
char buf[256];
in.read(buf, nameLen);
name = std::string(buf, nameLen);
}
in.seekg(start + std::streampos(resdataOffset + offset));
int size = longword(in);
std::vector<char> tmp(size);
in.read(tmp.data(), size);
std::string data(tmp.data(), size);
addResource(Resource(type, id, data, name, attr));
}
}
}