release/src-rt-6.x.4708/tools/misc/xz/src/liblzma/delta/delta_private.h

   1 ///////////////////////////////////////////////////////////////////////////////
   2 //
   3 /// \file       delta_private.h
   4 /// \brief      Private common stuff for Delta encoder and decoder
   5 //
   6 //  Author:     Lasse Collin
   7 //
   8 //  This file has been put into the public domain.
   9 //  You can do whatever you want with this file.
  10 //
  11 ///////////////////////////////////////////////////////////////////////////////
  12
  13 #ifndef LZMA_DELTA_PRIVATE_H
  14 #define LZMA_DELTA_PRIVATE_H
  15
  16 #include "delta_common.h"
  17
  18 struct lzma_coder_s {
  19         /// Next coder in the chain
  20         lzma_next_coder next;
  21
  22         /// Delta distance
  23         size_t distance;
  24
  25         /// Position in history[]
  26         uint8_t pos;
  27
  28         /// Buffer to hold history of the original data
  29         uint8_t history[LZMA_DELTA_DIST_MAX];
  30 };
  31
  32
  33 extern lzma_ret lzma_delta_coder_init(
  34                 lzma_next_coder *next, lzma_allocator *allocator,
  35                 const lzma_filter_info *filters);
  36
  37 #endif