fV3 BlockFormation::getOffset(fV3 direction, size_t rank, size_t file) const
{
fV3 left(-direction.y, direction.x, direction.z),
rank_offset(direction * (rank_middle - (rank * spacing))),
file_offset(left * ((file * spacing) - file_middle));
return (rank_offset + file_offset);
}
bool Archive::InitFiles() {
// Create FileInfo structures from the data entries within the hogg
if (fseek(file_, hogg::HOGG_DATAENTRIES_OFFSET, SEEK_SET) != 0) {
perror("Failed to seek to the data entries section");
return false;
}
char* dataEntryData = new char[sizeof(hogg::DataEntry) * num_files_];
fread(dataEntryData, sizeof(hogg::DataEntry), num_files_, file_);
hogg::DataEntry* dataEntry = (hogg::DataEntry*)dataEntryData;
int i;
for (i = 0; i < num_files_; i++) {
auto fi = new FileInfo(this);
fi->data_size(dataEntry->size_on_disk);
fi->file_offset(dataEntry->file_offset);
fi->last_updated(dataEntry->timestamp);
file_infos_[i] = fi;
dataEntry++;
}
delete [] dataEntryData;
// Set the decompressed size of FileInfos which are compressed
char* compressionData = new char[sizeof(hogg::CompressionInfo) * num_files_];
fread(compressionData, sizeof(hogg::CompressionInfo), num_files_, file_);
hogg::CompressionInfo* compressionInfo = (hogg::CompressionInfo*)compressionData;
for (i = 0; i < num_files_; i++) {
auto fi = file_infos_[i];
fi->file_path_string_id(compressionInfo->file_path_id);
fi->decompressed_size(compressionInfo->uncompressed_size);
compressionInfo++;
}
delete [] compressionData;
return true;
}
