static void run_test(const char* filename, PointData& data, unsigned short compressor, int requested_version=-1, int chunk_size=-1, bool random_seeks=false)
{
//
// COMPRESSION
//
// setting up LASzip parameters
LASzip laszip;
if (!laszip.setup(data.point_type, data.point_size, compressor))
{
log("ERROR on laszip.setup(): %s\n", laszip.get_error());
}
if (requested_version > -1) laszip.request_version((unsigned short)requested_version);
if (chunk_size > -1) laszip.set_chunk_size((unsigned int)chunk_size);
// packing up LASzip
unsigned char* bytes;
int num;
if (!laszip.pack(bytes, num))
{
log("ERROR on laszip.pack(): %s\n", laszip.get_error());
}
// creating the output stream
OStream* ost = new OStream(settings->use_iostream, filename);
// creating the zipper
LASzipper* laszipper = make_zipper(ost, &laszip);
// allocating the data to read from
data.setup(laszip.num_items, laszip.items);
// writing the points
if (chunk_size == 0)
{
if (random_seeks)
write_points_explicit_chunk_seek(laszipper, data);
else
write_points_explicit_chunk(laszipper, data);
}
else
{
if (random_seeks)
write_points_seek(laszipper, data);
else
write_points(laszipper, data);
}
// cleaning up
delete laszipper;
delete ost;
//
// DECOMPRESSION
//
// setting up LASzip parameters
LASzip laszip_dec;
if (!laszip_dec.unpack(bytes, num))
{
log("ERROR on laszip_dec.unpack(): %s\n", laszip_dec.get_error());
}
// creating the input stream
IStream* ist = new IStream(settings->use_iostream, filename);
// creating the unzipper
LASunzipper* lasunzipper = make_unzipper(ist, &laszip_dec);
// allocating the data to write into
data.setup(laszip_dec.num_items, laszip_dec.items);
// reading the points
if (random_seeks)
read_points_seek(lasunzipper, data);
else
read_points(lasunzipper, data);
// cleaning up
delete lasunzipper;
delete ist;
return;
}
