// ********************************************************************************************
void Block::StoreLzMatches(BitStream &bit_stream, LzMatcher &lz_matcher)
{
for (uint32 i = 0; i < rec_count; ++i)
{
bit_stream.PutBit(lz_matches[i].length != 0);
if (lz_matches[i].length == 0)
{
bit_stream.PutBit(records[i].lz_inserted);
}
}
bit_stream.FlushPartialWordBuffer();
// DNA data
uint32 rec_no_bits = BitStream::BitLength(b_start_rec_no + rec_count - 1);
uint32 length_bits;
uint32 offset_bits = (uint32)MAX(0, (int32)global_max_sequence_length - (int32)lz_matcher.GetMinMatchLen());
if (offset_bits)
{
offset_bits = BitStream::BitLength(global_max_sequence_length - lz_matcher.GetMinMatchLen());
}
for (uint32 i = 0; i < rec_count; ++i)
{
if (lz_matches[i].length > 0)
{
length_bits = BitStream::BitLength(MAX(0, MIN((int32)records[i].sequence_len - (int32)lz_matcher.GetMinMatchLen(), 255)));
bit_stream.PutBits(lz_matches[i].rec_no, rec_no_bits);
if (length_bits > 0)
bit_stream.PutBits(lz_matches[i].length - lz_matcher.GetMinMatchLen(), length_bits);
if (offset_bits)
bit_stream.PutBits(lz_matches[i].rec_offset, offset_bits);
}
}
bit_stream.FlushPartialWordBuffer();
}
// ********************************************************************************************
void Block::StoreTitle(BitStream &bit_stream, std::vector<Field> &fields, int32 block_no, bool is_num_fields_constant)
{
uint32 n_fields = (uint32) fields.size();
uint32 n_fields_bits = BitStream::BitLength(n_fields);
prev_value.resize(n_fields);
for (uint32 i = 0; i < n_fields; ++i)
{
if (fields[i].is_constant)
continue;
Field::BlockDesc& block_desc = fields[i].block_desc[block_no];
prev_value[i] = 0;
if (!fields[i].is_numeric)
{
bit_stream.PutBit(block_desc.is_block_constant);
}
if (fields[i].is_numeric)
{
block_desc.is_block_delta_constant &= (int32)block_desc.block_delta_constant == fields[i].min_delta;
if (fields[i].is_delta_coding)
{
bit_stream.PutBit(block_desc.is_block_delta_constant);
}
else
{
bit_stream.PutBit(block_desc.is_block_value_constant);
}
}
}
for (uint32 i = 0; i < rec_count; ++i)
{
uint32 c_field = 0;
uint32 start_pos = 0;
FastqRecord &rec = records[i];
if (!is_num_fields_constant)
{
bit_stream.PutBits(rec.no_of_fields, n_fields_bits);
}
for (uint32 k = 0; k <= rec.title_len; ++k)
{
Field &cur_field = fields[c_field];
if (rec.title[k] != cur_field.sep && k < rec.title_len)
continue;
if (cur_field.is_constant)
{
start_pos = k+1;
c_field++;
continue;
}
if (cur_field.is_numeric)
{
int32 value = utils::to_num(rec.title+start_pos, k-start_pos);
if (i == 0)
{
bit_stream.PutBits(value-cur_field.min_value, cur_field.no_of_bits_per_value);
}
else if ((cur_field.is_delta_coding && !cur_field.block_desc[block_no].is_block_delta_constant) ||
(!cur_field.is_delta_coding && !cur_field.block_desc[block_no].is_block_value_constant))
{
int32 to_store;
if (cur_field.is_delta_coding)
{
to_store = value - prev_value[c_field] - cur_field.min_delta;
}
else
{
to_store = value - cur_field.min_value;
}
if (cur_field.Huffman_global)
{
const HuffmanEncoder::Code* codes = cur_field.Huffman_global->GetCodes();
bit_stream.PutBits(codes[to_store].code, codes[to_store].len);
}
else
{
bit_stream.PutBits(to_store, cur_field.no_of_bits_per_num);
}
}
prev_value[c_field] = value;
start_pos = k+1;
c_field++;
continue;
}
if (i > 0 && cur_field.block_desc[block_no].is_block_constant)
{
start_pos = k+1;
c_field++;
continue;
}
if (!cur_field.is_len_constant)
{
bit_stream.PutBits(k-start_pos - cur_field.min_len, cur_field.no_of_bits_per_len);
}
for (uint32 j = 0; j < k-start_pos; ++j)
{
if (j >= cur_field.len || !cur_field.Ham_mask[j])
{
uchar c = rec.title[start_pos+j];
const HuffmanEncoder::Code* codes = cur_field.Huffman_local[MIN(j, Superblock::MAX_FIELD_STAT_LEN)]->GetCodes();
bit_stream.PutBits(codes[c].code, codes[c].len);
}
}
start_pos = k+1;
c_field++;
}
}
bit_stream.FlushPartialWordBuffer();
}
// ********************************************************************************************
void Block::Process(BitStream &bit_stream, LzMatcher &lz_matcher, std::vector<Field> &fields, uint32 /*n_fields*/,
uint32 fastq_flags, uchar *sym_code, HuffmanEncoder::Code *sym_huf_codes,
uchar *qua_code, HuffmanEncoder::Code **qua_huf_codes, uint32 /*max_run_len*/,
HuffmanEncoder::Code **run_huf_codes, uint32 n_qualities, uint32 _global_max_sequence_length,
uint32 max_quality_length, uint32 block_no, uint32 _quality_stats_mode)
{
global_max_sequence_length = _global_max_sequence_length;
#if (D_RESERVE_BYTES_PER_BLOCK)
{
uchar bytes[Block::RESERVED_BYTES];
std::fill(bytes, bytes+Block::RESERVED_BYTES, INVALID_BYTE);
bit_stream.PutBytes(bytes, Block::RESERVED_BYTES);
}
#endif
if ((fastq_flags & FLAG_PLUS_ONLY) == 0)
{
for (uint32 i = 0; i < rec_count; ++i)
{
bit_stream.PutBit(records[i].plus_len == 1);
}
}
uint32 quality_len_bits = BitStream::BitLength(max_quality_length);
if ((fastq_flags & FLAG_VARIABLE_LENGTH) != 0)
{
for (uint32 i = 0; i < rec_count; ++i)
{
bit_stream.PutBits(records[i].quality_len, quality_len_bits);
}
}
if ((fastq_flags & FLAG_LINE_BREAKS) != 0)
{
uint32 max_line_break_len = 0;
for (uint32 i = 0; i < rec_count; ++i)
{
if (records[i].sequence_breaks)
{
for (uint32 j = 0; j < records[i].sequence_breaks->size(); ++j)
{
if ((*records[i].sequence_breaks)[j] > (int32) max_line_break_len)
{
max_line_break_len = (*records[i].sequence_breaks)[j];
}
}
}
if (records[i].quality_breaks)
{
for (uint32 j = 0; j < records[i].quality_breaks->size(); ++j)
{
if ((*records[i].quality_breaks)[j] > (int32) max_line_break_len)
{
max_line_break_len = (*records[i].quality_breaks)[j];
}
}
}
}
uint32 line_breaks_bits = BitStream::BitLength(max_line_break_len);
bit_stream.PutBits(line_breaks_bits, 5);
for (uint32 i = 0; i < rec_count; ++i)
{
if (records[i].sequence_breaks)
{
for (uint32 j = 0; j < records[i].sequence_breaks->size(); ++j)
{
bit_stream.PutBits((*records[i].sequence_breaks)[j], line_breaks_bits);
}
}
bit_stream.PutBits(0, line_breaks_bits);
if (records[i].quality_breaks)
{
for (uint32 j = 0; j < records[i].quality_breaks->size(); ++j)
{
bit_stream.PutBits((*records[i].quality_breaks)[j], line_breaks_bits);
}
}
bit_stream.PutBits(0, line_breaks_bits);
}
}
bit_stream.FlushPartialWordBuffer();
bool is_num_field_constant = (fastq_flags & FLAG_CONST_NUM_FIELDS) != 0;
StoreTitle(bit_stream, fields, block_no, is_num_field_constant);
if (_quality_stats_mode == QUALITY_RLE)
{
StoreQualityRLE(bit_stream, qua_code, qua_huf_codes, run_huf_codes, n_qualities);
}
else
{
bool use_trunc_hash = _quality_stats_mode == QUALITY_PLAIN_TRUNC;
StoreQualityPlain(bit_stream, qua_code, qua_huf_codes, n_qualities, use_trunc_hash);
}
bool try_lz = (fastq_flags & FLAG_TRY_LZ) != 0;
if ((fastq_flags & FLAG_DNA_PLAIN) != 0)
{
StoreDNAPlain(bit_stream, lz_matcher, sym_code, try_lz);
}
else
{
StoreDNAHuf(bit_stream, lz_matcher, sym_code, sym_huf_codes, try_lz);
}
#if (D_COMPUTE_RECORDS_CRC_PER_BLOCK)
uint32 hash = ComputeRecordsCrc32();
bit_stream.PutWord(hash);
#endif
}