summaryrefslogtreecommitdiffstats
path: root/Utilities/cmliblzma/liblzma/delta/delta_private.h
blob: 62b7fed86e45fe98b9c83050e55ab1420e3ef65b (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
///////////////////////////////////////////////////////////////////////////////
//
/// \file       delta_private.h
/// \brief      Private common stuff for Delta encoder and decoder
//
//  Author:     Lasse Collin
//
//  This file has been put into the public domain.
//  You can do whatever you want with this file.
//
///////////////////////////////////////////////////////////////////////////////

#ifndef LZMA_DELTA_PRIVATE_H
#define LZMA_DELTA_PRIVATE_H

#include "delta_common.h"

struct lzma_coder_s {
	/// Next coder in the chain
	lzma_next_coder next;

	/// Delta distance
	size_t distance;

	/// Position in history[]
	uint8_t pos;

	/// Buffer to hold history of the original data
	uint8_t history[LZMA_DELTA_DIST_MAX];
};


extern lzma_ret lzma_delta_coder_init(
		lzma_next_coder *next, lzma_allocator *allocator,
		const lzma_filter_info *filters);

#endif