Adding upstream version 1.3.upstream/1.3

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

1 files changed, 0 insertions, 289 deletions

diff --git a/decoder.cc b/decoder.cc
deleted file mode 100644
index 0d8d4d5..0000000
--- a/decoder.cc
+++ /dev/null
@@ -1,289 +0,0 @@
-/*  Lzlib - A compression library for lzip files
-    Copyright (C) 2009, 2010, 2011 Antonio Diaz Diaz.
-
-    This library is free software: you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation, either version 3 of the License, or
-    (at your option) any later version.
-
-    This library is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with this library.  If not, see <http://www.gnu.org/licenses/>.
-
-    As a special exception, you may use this file as part of a free
-    software library without restriction.  Specifically, if other files
-    instantiate templates or use macros or inline functions from this
-    file, or you compile this file and link it with other files to
-    produce an executable, this file does not by itself cause the
-    resulting executable to be covered by the GNU General Public
-    License.  This exception does not however invalidate any other
-    reasons why the executable file might be covered by the GNU General
-    Public License.
-*/
-
-#define _FILE_OFFSET_BITS 64
-
-#include <algorithm>
-#include <cerrno>
-#include <cstdlib>
-#include <cstring>
-#include <stdint.h>
-
-#include "lzlib.h"
-#include "lzip.h"
-#include "decoder.h"
-
-
-namespace Lzlib {
-
-const CRC32 crc32;
-
-// Seeks a member header and updates `get'.
-// Returns true if it finds a valid header.
-bool Range_decoder::find_header() throw()
-  {
-  while( get != put )
-    {
-    if( buffer[get] == magic_string[0] )
-      {
-      int g = get;
-      File_header header;
-      for( int i = 0; i < File_header::size; ++i )
-        {
-        if( g == put ) return false;		// not enough data
-        header.data[i] = buffer[g];
-        if( ++g >= buffer_size ) g = 0;
-        }
-      if( header.verify() ) return true;
-      }
-    if( ++get >= buffer_size ) get = 0;
-    }
-  return false;
-  }
-
-
-// Returns true, fills `header', and updates `get' if `get' points to a
-// valid header.
-// Else returns false and leaves `get' unmodified.
-bool Range_decoder::read_header( File_header & header ) throw()
-  {
-  int g = get;
-  for( int i = 0; i < File_header::size; ++i )
-    {
-    if( g == put ) return false;		// not enough data
-    header.data[i] = buffer[g];
-    if( ++g >= buffer_size ) g = 0;
-    }
-  if( header.verify() )
-    {
-    get = g;
-    member_pos = File_header::size;
-    reload_pending = true;
-    return true;
-    }
-  return false;
-  }
-
-
-bool LZ_decoder::verify_trailer()
-  {
-  File_trailer trailer;
-  const int trailer_size = File_trailer::size( member_version );
-  const long long member_size = range_decoder.member_position() + trailer_size;
-  bool error = false;
-
-  for( int i = 0; i < trailer_size && !error; ++i )
-    {
-    if( !range_decoder.finished() )
-      trailer.data[i] = range_decoder.get_byte();
-    else
-      {
-      error = true;
-      for( ; i < trailer_size; ++i ) trailer.data[i] = 0;
-      }
-    }
-  if( member_version == 0 ) trailer.member_size( member_size );
-  if( !range_decoder.code_is_zero() ) error = true;
-  if( trailer.data_crc() != crc() ) error = true;
-  if( trailer.data_size() != data_position() ) error = true;
-  if( trailer.member_size() != member_size ) error = true;
-  return !error;
-  }
-
-
-    // Return value: 0 = OK, 1 = decoder error, 2 = unexpected EOF,
-    //               3 = trailer error, 4 = unknown marker found.
-int LZ_decoder::decode_member()
-  {
-  if( member_finished_ ) return 0;
-  if( !range_decoder.try_reload() ) return 0;
-  if( verify_trailer_pending )
-    {
-    if( range_decoder.available_bytes() < File_trailer::size( member_version ) &&
-        !range_decoder.at_stream_end() )
-      return 0;
-    verify_trailer_pending = false;
-    member_finished_ = true;
-    if( verify_trailer() ) return 0; else return 3;
-    }
-  while( true )
-    {
-    if( range_decoder.finished() ) return 2;
-    if( !range_decoder.enough_available_bytes() || !enough_free_bytes() )
-      return 0;
-    const int pos_state = data_position() & pos_state_mask;
-    if( range_decoder.decode_bit( bm_match[state()][pos_state] ) == 0 )
-      {
-      const uint8_t prev_byte = get_prev_byte();
-      if( state.is_char() )
-        put_byte( literal_decoder.decode( range_decoder, prev_byte ) );
-      else
-        put_byte( literal_decoder.decode_matched( range_decoder, prev_byte,
-                                                  get_byte( rep0 ) ) );
-      state.set_char();
-      }
-    else
-      {
-      int len;
-      if( range_decoder.decode_bit( bm_rep[state()] ) == 1 )
-        {
-        len = 0;
-        if( range_decoder.decode_bit( bm_rep0[state()] ) == 1 )
-          {
-          unsigned int distance;
-          if( range_decoder.decode_bit( bm_rep1[state()] ) == 0 )
-            distance = rep1;
-          else
-            {
-            if( range_decoder.decode_bit( bm_rep2[state()] ) == 0 )
-              distance = rep2;
-            else { distance = rep3; rep3 = rep2; }
-            rep2 = rep1;
-            }
-          rep1 = rep0;
-          rep0 = distance;
-          }
-        else
-          {
-          if( range_decoder.decode_bit( bm_len[state()][pos_state] ) == 0 )
-            { state.set_short_rep(); len = 1; }
-          }
-        if( len == 0 )
-          {
-          state.set_rep();
-          len = min_match_len + rep_match_len_decoder.decode( range_decoder, pos_state );
-          }
-        }
-      else
-        {
-        const unsigned int rep0_saved = rep0;
-        len = min_match_len + len_decoder.decode( range_decoder, pos_state );
-        const int dis_slot = range_decoder.decode_tree( bm_dis_slot[get_dis_state(len)], dis_slot_bits );
-        if( dis_slot < start_dis_model ) rep0 = dis_slot;
-        else
-          {
-          const int direct_bits = ( dis_slot >> 1 ) - 1;
-          rep0 = ( 2 | ( dis_slot & 1 ) ) << direct_bits;
-          if( dis_slot < end_dis_model )
-            rep0 += range_decoder.decode_tree_reversed( bm_dis + rep0 - dis_slot, direct_bits );
-          else
-            {
-            rep0 += range_decoder.decode( direct_bits - dis_align_bits ) << dis_align_bits;
-            rep0 += range_decoder.decode_tree_reversed( bm_align, dis_align_bits );
-            if( rep0 == 0xFFFFFFFFU )		// Marker found
-              {
-              rep0 = rep0_saved;
-              range_decoder.normalize();
-              if( len == min_match_len )	// End Of Stream marker
-                {
-                if( range_decoder.available_bytes() < File_trailer::size( member_version ) &&
-                    !range_decoder.at_stream_end() )
-                  { verify_trailer_pending = true; return 0; }
-                member_finished_ = true;
-                if( verify_trailer() ) return 0; else return 3;
-                }
-              if( len == min_match_len + 1 )	// Sync Flush marker
-                {
-                if( range_decoder.try_reload( true ) ) continue;
-                else return 0;
-                }
-              return 4;
-              }
-            }
-          }
-        rep3 = rep2; rep2 = rep1; rep1 = rep0_saved;
-        state.set_match();
-        if( rep0 >= (unsigned int)dictionary_size ||
-            ( rep0 >= (unsigned int)put && !partial_data_pos ) )
-          return 1;
-        }
-      copy_block( rep0, len );
-      }
-    }
-  }
-
-
-// Copies up to `out_size' bytes to `out_buffer' and updates `get'.
-// Returns the number of bytes copied.
-int Circular_buffer::read_data( uint8_t * const out_buffer, const int out_size ) throw()
-  {
-  if( out_size < 0 ) return 0;
-  int size = 0;
-  if( get > put )
-    {
-    size = std::min( buffer_size - get, out_size );
-    if( size > 0 )
-      {
-      std::memcpy( out_buffer, buffer + get, size );
-      get += size;
-      if( get >= buffer_size ) get = 0;
-      }
-    }
-  if( get < put )
-    {
-    const int size2 = std::min( put - get, out_size - size );
-    if( size2 > 0 )
-      {
-      std::memcpy( out_buffer + size, buffer + get, size2 );
-      get += size2;
-      size += size2;
-      }
-    }
-  return size;
-  }
-
-
-// Copies up to `in_size' bytes from `in_buffer' and updates `put'.
-// Returns the number of bytes copied.
-int Circular_buffer::write_data( const uint8_t * const in_buffer, const int in_size ) throw()
-  {
-  if( in_size < 0 ) return 0;
-  int size = 0;
-  if( put >= get )
-    {
-    size = std::min( buffer_size - put - (get == 0), in_size );
-    if( size > 0 )
-      {
-      std::memcpy( buffer + put, in_buffer, size );
-      put += size;
-      if( put >= buffer_size ) put = 0;
-      }
-    }
-  if( put < get )
-    {
-    const int size2 = std::min( get - put - 1, in_size - size );
-    if( size2 > 0 )
-      {
-      std::memcpy( buffer + put, in_buffer + size, size2 );
-      put += size2;
-      size += size2;
-      }
-    }
-  return size;
-  }
-
-} // end namespace Lzlib