Macintosh-Tools/Retro68
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don't use seek when writing MacBinary

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This commit is contained in:
Wolfgang Thaller 2017-10-09 15:14:32 +02:00
parent 0e2eb677e4
commit e2a3ea6da8
1 changed files with 13 additions and 17 deletions
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30
ResourceFiles/ResourceFile.cc
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@ -67,17 +67,12 @@ static void writeMacBinary(std::ostream& out, std::string filename,
ResType type, ResType creator,
const Resources& rsrc, const std::string& data)
{
out.seekp(128);
out << data;
std::streampos dataend = out.tellp();
while((int)out.tellp() % 128)
byte(out,0);
std::streampos rsrcstart = out.tellp(); //((int)dataend + 0x7F) & ~0x7F;
rsrc.writeFork(out);
std::streampos rsrcend = out.tellp();
while((int)out.tellp() % 128)
byte(out,0);
std::ostringstream resstream;
rsrc.writeFork(resstream);
const std::string& rsrcBytes = resstream.str();
std::ostringstream header;
byte(header, 0);
@ -94,21 +89,22 @@ static void writeMacBinary(std::ostream& out, std::string filename,
word(header, 0); // folder id
byte(header, 0); // protected flag
byte(header, 0);
longword(header, ((int)dataend - 128));
longword(header, (int) (rsrcend - rsrcstart));
longword(header, (int)data.size());
longword(header, (int)rsrcBytes.size());
longword(header, 0); // creation date
longword(header, 0); // modification date
while((int)header.tellp() < 124)
byte(header,0);
out.seekp(0);
std::string headerData = header.str();
// out.write(&headerData[0], headerData.size());
out << headerData;
word(out, CalculateCRC(0, &headerData[0], headerData.size()));
word(out, 0);
//longword(out,0);
out.seekp(0, std::ios::end);
out << data;
while((int)out.tellp() % 128)
byte(out,0);
rsrc.writeFork(out);
while((int)out.tellp() % 128)
byte(out,0);
}