Adding upstream version 1.4.upstream/1.4

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

1 files changed, 11 insertions, 11 deletions

diff --git a/decoder.c b/decoder.c
index acaa693..c079504 100644
--- a/decoder.c
+++ b/decoder.c
@@ -104,9 +104,9 @@ bool Rd_read_block( struct Range_decoder * const rdec )
 
 void LZd_flush_data( struct LZ_decoder * const decoder )
   {
-  const int size = decoder->pos - decoder->stream_pos;
-  if( size > 0 )
+  if( decoder->pos > decoder->stream_pos )
     {
+    const int size = decoder->pos - decoder->stream_pos;
     CRC32_update_buf( &decoder->crc, decoder->buffer + decoder->stream_pos, size );
     if( decoder->outfd >= 0 &&
         writeblock( decoder->outfd, decoder->buffer + decoder->stream_pos, size ) != size )
@@ -223,15 +223,9 @@ int LZd_decode_member( struct LZ_decoder * const decoder,
     else
       {
       int len;
-      if( Rd_decode_bit( rdec, &decoder->bm_rep[state] ) == 1 )	/* 2nd bit */
+      if( Rd_decode_bit( rdec, &decoder->bm_rep[state] ) != 0 )	/* 2nd bit */
         {
-        if( Rd_decode_bit( rdec, &decoder->bm_rep0[state] ) == 0 )	/* 3rd bit */
-          {
-          if( Rd_decode_bit( rdec, &decoder->bm_len[state][pos_state] ) == 0 )	/* 4th bit */
-            { state = St_set_short_rep( state );
-              LZd_put_byte( decoder, LZd_get_byte( decoder, rep0 ) ); continue; }
-          }
-        else
+        if( Rd_decode_bit( rdec, &decoder->bm_rep0[state] ) != 0 )	/* 3rd bit */
           {
           unsigned distance;
           if( Rd_decode_bit( rdec, &decoder->bm_rep1[state] ) == 0 )	/* 4th bit */
@@ -247,6 +241,12 @@ int LZd_decode_member( struct LZ_decoder * const decoder,
           rep1 = rep0;
           rep0 = distance;
           }
+        else
+          {
+          if( Rd_decode_bit( rdec, &decoder->bm_len[state][pos_state] ) == 0 )	/* 4th bit */
+            { state = St_set_short_rep( state );
+              LZd_put_byte( decoder, LZd_get_byte( decoder, rep0 ) ); continue; }
+          }
         state = St_set_rep( state );
         len = min_match_len + Rd_decode_len( rdec, &decoder->rep_len_model, pos_state );
         }
@@ -255,7 +255,7 @@ int LZd_decode_member( struct LZ_decoder * const decoder,
         int dis_slot;
         const unsigned rep0_saved = rep0;
         len = min_match_len + Rd_decode_len( rdec, &decoder->match_len_model, pos_state );
-        dis_slot = Rd_decode_tree6( rdec, decoder->bm_dis_slot[get_dis_state(len)] );
+        dis_slot = Rd_decode_tree6( rdec, decoder->bm_dis_slot[get_len_state(len)] );
         if( dis_slot < start_dis_model ) rep0 = dis_slot;
         else
           {