bool SaveContainer::isSave(Common::SeekableReadStream &stream) {
// Remember the stream's position to seek back to
uint32 startPos = stream.pos();
SaveHeader header;
header.setType(kID);
header.setVersion(kVersion);
bool result = header.verifyReadSize(stream);
// Seek back
stream.seek(startPos);
return result;
}
Common::Array<SaveContainer::PartInfo> *SaveContainer::getPartsInfo(Common::SeekableReadStream &stream) {
Common::Array<PartInfo> *parts = 0;
// Remember the stream's position to seek back to
uint32 startPos = stream.pos();
SaveHeader header;
header.setType(kID);
header.setVersion(kVersion);
// Verify the header
if (!header.verifyReadSize(stream)) {
// Seek back
stream.seek(startPos);
return 0;
}
// Read the part count
uint32 partCount = stream.readUint32LE();
// Create a part information array
parts = new Common::Array<PartInfo>;
parts->resize(partCount);
// Read all part sizes
for (uint32 i = 0; i < partCount; i++)
(*parts)[i].size = stream.readUint32LE();
// Iterate over all parts
for (uint32 i = 0; i < partCount; i++) {
// The part's offset (from the starting point of the stream)
(*parts)[i].offset = stream.pos() - startPos;
SaveHeader partHeader;
// Read the header
if (!partHeader.read(stream)) {
// Seek back
stream.seek(startPos);
delete parts;
return 0;
}
// Fill in the ID
(*parts)[i].id = partHeader.getType();
// Skip the part's content
stream.skip(partHeader.getSize());
}
if (stream.err()) {
delete parts;
parts = 0;
}
// Seek back
stream.seek(startPos);
return parts;
}