Merging upstream version 1.3~rc1.

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

1 files changed, 26 insertions, 8 deletions

diff --git a/lunzip.h b/lzip.h
index 4437ec6..d391fb1 100644
--- a/lunzip.h
+++ b/lzip.h
@@ -57,7 +57,7 @@ enum {
   dis_slot_bits = 6,
   start_dis_model = 4,
   end_dis_model = 14,
-  modeled_distances = 1 << (end_dis_model / 2),
+  modeled_distances = 1 << (end_dis_model / 2),		/* 128 */
   dis_align_bits = 4,
   dis_align_size = 1 << dis_align_bits,
 
@@ -94,6 +94,24 @@ static inline void Bm_init( Bit_model * const probability )
 static inline void Bm_array_init( Bit_model * const p, const int size )
   { int i = 0; while( i < size ) p[i++] = bit_model_total / 2; }
 
+struct Len_model
+  {
+  Bit_model choice1;
+  Bit_model choice2;
+  Bit_model bm_low[pos_states][len_low_symbols];
+  Bit_model bm_mid[pos_states][len_mid_symbols];
+  Bit_model bm_high[len_high_symbols];
+  };
+
+static inline void Lm_init( struct Len_model * const lm )
+  {
+  Bm_init( &lm->choice1 );
+  Bm_init( &lm->choice2 );
+  Bm_array_init( lm->bm_low[0], pos_states * len_low_symbols );
+  Bm_array_init( lm->bm_mid[0], pos_states * len_mid_symbols );
+  Bm_array_init( lm->bm_high, len_high_symbols );
+  }
+
 
 struct Pretty_print
   {
@@ -138,11 +156,11 @@ static inline void CRC32_init( void )
     }
   }
 
-static inline void CRC32_update_byte( uint32_t * crc, const uint8_t byte )
+static inline void CRC32_update_byte( uint32_t * const crc, const uint8_t byte )
   { *crc = crc32[(*crc^byte)&0xFF] ^ ( *crc >> 8 ); }
 
-static inline void CRC32_update_buf( uint32_t * crc, const uint8_t * const buffer,
-                                     const int size )
+static inline void CRC32_update_buf( uint32_t * const crc,
+                                     const uint8_t * const buffer, const int size )
   {
   int i;
   for( i = 0; i < size; ++i )
@@ -177,11 +195,11 @@ static inline uint8_t Fh_version( const File_header data )
 static inline bool Fh_verify_version( const File_header data )
   { return ( data[4] <= 1 ); }
 
-static inline int Fh_get_dictionary_size( const File_header data )
+static inline unsigned Fh_get_dictionary_size( const File_header data )
   {
-  int sz = ( 1 << ( data[5] & 0x1F ) );
-  if( sz > min_dictionary_size && sz <= max_dictionary_size )
-    sz -= ( sz / 16 ) * ( ( data[5] >> 5 ) & 0x07 );
+  unsigned sz = ( 1 << ( data[5] & 0x1F ) );
+  if( sz > min_dictionary_size )
+    sz -= ( sz / 16 ) * ( ( data[5] >> 5 ) & 7 );
   return sz;
   }