Adding upstream version 1.6~pre2.upstream/1.6_pre2

Signed-off-by: Daniel Baumann <mail@daniel-baumann.ch>

1 files changed, 37 insertions, 2 deletions

diff --git a/encoder.cc b/encoder.cc
index f1a033b..291f1d1 100644
--- a/encoder.cc
+++ b/encoder.cc
@@ -43,6 +43,41 @@ bool Matchfinder::read_block() throw()
   }
 
 
+Matchfinder::Matchfinder( const int dict_size, const int len_limit,
+                          const int ides )
+  :
+  partial_data_pos( 0 ),
+  pos( 0 ),
+  cyclic_pos( 0 ),
+  stream_pos( 0 ),
+  ides_( ides ),
+  match_len_limit_( len_limit ),
+  prev_positions( new int32_t[num_prev_positions] ),
+  at_stream_end( false )
+  {
+  const int buffer_size_limit = ( 2 * dict_size ) +
+                                max_num_trials + max_match_len;
+  buffer_size = std::max( 65536, dict_size );
+  buffer = (uint8_t *)std::malloc( buffer_size );
+  if( !buffer ) throw std::bad_alloc();
+  if( !read_block() ) throw Error( "read error" );
+  if( !at_stream_end && buffer_size < buffer_size_limit )
+    {
+    buffer_size = buffer_size_limit;
+    buffer = (uint8_t *)std::realloc( buffer, buffer_size );
+    if( !buffer ) throw std::bad_alloc();
+    if( !read_block() ) throw Error( "read error" );
+    }
+  if( at_stream_end && stream_pos < dict_size )
+    dictionary_size_ = std::max( min_dictionary_size, stream_pos );
+  else dictionary_size_ = dict_size;
+  pos_limit = buffer_size;
+  if( !at_stream_end ) pos_limit -= max_match_len;
+  prev_pos_tree = new int32_t[2*dictionary_size_];
+  for( int i = 0; i < num_prev_positions; ++i ) prev_positions[i] = -1;
+  }
+
+
 bool Matchfinder::reset() throw()
   {
   const int size = stream_pos - pos;
@@ -433,7 +468,7 @@ void LZ_encoder::flush( const State & state )
   trailer.data_size( matchfinder.data_position() );
   trailer.member_size( range_encoder.member_position() + sizeof trailer );
   for( unsigned int i = 0; i < sizeof trailer; ++i )
-    range_encoder.put_byte( (( uint8_t *)&trailer)[i] );
+    range_encoder.put_byte( ((uint8_t *)&trailer)[i] );
   range_encoder.flush_data();
   }
 
@@ -453,7 +488,7 @@ LZ_encoder::LZ_encoder( Matchfinder & mf, const File_header & header,
   fill_align_prices();
 
   for( unsigned int i = 0; i < sizeof header; ++i )
-    range_encoder.put_byte( (( uint8_t *)&header)[i] );
+    range_encoder.put_byte( ((uint8_t *)&header)[i] );
   }