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  typedef struct {
      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  } lzma_delta_coder;
      31  
      32  
      33  extern lzma_ret lzma_delta_coder_init(
      34  		lzma_next_coder *next, const lzma_allocator *allocator,
      35  		const lzma_filter_info *filters);
      36  
      37  #endif