diff options
Diffstat (limited to 'decoder.cc')
| -rw-r--r-- | decoder.cc | 15 |
1 files changed, 6 insertions, 9 deletions
@@ -125,12 +125,11 @@ bool LZ_decoder::verify_trailer( const Pretty_print & pp ) const // 3 = trailer error, 4 = unknown marker found. int LZ_decoder::decode_member( const Pretty_print & pp ) { - unsigned int rep0 = 0; - unsigned int rep1 = 0; - unsigned int rep2 = 0; + unsigned int rep0 = 0; // rep[0-3] latest four distances + unsigned int rep1 = 0; // used for efficient coding of + unsigned int rep2 = 0; // repeated distances unsigned int rep3 = 0; State state; - uint8_t prev_byte = 0; while( true ) { @@ -139,11 +138,10 @@ int LZ_decoder::decode_member( const Pretty_print & pp ) if( range_decoder.decode_bit( bm_match[state()][pos_state] ) == 0 ) { if( state.is_char() ) - prev_byte = literal_decoder.decode( range_decoder, prev_byte ); + put_byte( literal_decoder.decode( range_decoder, get_byte( 0 ) ) ); else - prev_byte = literal_decoder.decode_matched( range_decoder, prev_byte, - get_byte( rep0 ) ); - put_byte( prev_byte ); + put_byte( literal_decoder.decode_matched( range_decoder, get_byte( 0 ), + get_byte( rep0 ) ) ); state.set_char(); } else @@ -222,7 +220,6 @@ int LZ_decoder::decode_member( const Pretty_print & pp ) state.set_match(); } copy_block( rep0, len ); - prev_byte = get_byte( 0 ); } } } |