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MakeAPPL: add code for reading resources

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This commit is contained in:
Wolfgang Thaller 2014-10-01 23:51:20 +02:00
parent 85c8063cac
commit 04e7e64a55
1 changed files with 94 additions and 2 deletions
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96
MakeAPPL/main.cc
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@ -51,9 +51,10 @@ class Resource
int id;
std::string name;
std::string data;
int attr;
public:
Resource(std::string type, int id, std::string data)
: type(type), id(id), data(data) {}
Resource(std::string type, int id, std::string data, std::string name = "", int attr = 0)
: type(type), id(id), data(data), name(name), attr(attr) {}
const std::string& getData() const { return data; }
inline std::string getType() const { return type; }
@ -71,8 +72,12 @@ class Resources : public Fork
{
std::vector<Resource> resources;
public:
Resources() {}
Resources(std::istream& in);
void writeFork(std::ostream& out) const;
void addResource(Resource res) { resources.push_back(res); }
void addResources(const Resources& res);
};
void byte(std::ostream& out, int byte)
@ -97,6 +102,36 @@ void longword(std::ostream& out, int longword)
byte(out,longword & 0xFF);
}
int byte(std::istream& in)
{
return in.get() & 0xFF;
}
int word(std::istream& in)
{
int a = byte(in);
int b = byte(in);
return (a << 8) | b;
}
std::string ostype(std::istream& in)
{
char s[5];
in.read(s,4);
s[4] = 0;
return s;
}
int longword(std::istream& in)
{
int a = byte(in);
int b = byte(in);
int c = byte(in);
int d = byte(in);
return (a << 24) | (b << 16) | (c << 8) | d;
}
void Resources::addResources(const Resources& res)
{
resources.insert(resources.end(),res.resources.begin(), res.resources.end());
}
void Resources::writeFork(std::ostream& out) const
{
@ -168,6 +203,55 @@ void Resources::writeFork(std::ostream& out) const
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));
}
}
}
// CRC 16 table lookup array
static unsigned short CRC16Table[256] =
{0x0000, 0x1021, 0x2042, 0x3063, 0x4084, 0x50A5, 0x60C6, 0x70E7,
@ -411,6 +495,14 @@ int main(int argc, char *argv[])
std::istringstream in(argv[i++]);
in >> std::hex >> sizeFlags;
}
else if(arg == "--copy")
{
assert(i < argc);
std::string fn = argv[i++];
std::ifstream in(fn.c_str(), std::ios::in|std::ios::binary);
Resources rsrc2(in);
rsrc.addResources(rsrc2);
}
else
{
std::cout << "unrecognized flag\n";