claw 1.9.0
 
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rle_decoder.hpp
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1/*
2 CLAW - a C++ Library Absolutely Wonderful
3
4 CLAW is a free library without any particular aim but being useful to
5 anyone.
6
7 Copyright (C) 2005-2011 Julien Jorge
8
9 This library is free software; you can redistribute it and/or
10 modify it under the terms of the GNU Lesser General Public
11 License as published by the Free Software Foundation; either
12 version 2.1 of the License, or (at your option) any later version.
13
14 This library is distributed in the hope that it will be useful,
15 but WITHOUT ANY WARRANTY; without even the implied warranty of
16 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
17 Lesser General Public License for more details.
18
19 You should have received a copy of the GNU Lesser General Public
20 License along with this library; if not, write to the Free Software
21 Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
22
23 contact: julien.jorge@stuff-o-matic.com
24*/
30#ifndef __CLAW_RLE_DECODER_HPP__
31#define __CLAW_RLE_DECODER_HPP__
32
33namespace claw
34{
53 template <typename Pattern, typename InputBuffer, typename OutputBuffer>
54 class rle_decoder
55 {
56 public:
58 typedef Pattern pattern_type;
59
61 typedef InputBuffer input_buffer_type;
62
64 typedef OutputBuffer output_buffer_type;
65
66 protected:
70 enum mode
71 {
74
77
80 }; // enum mode
81
82 public:
84 virtual ~rle_decoder();
85
86 void decode(input_buffer_type& input, output_buffer_type& output);
87
88 protected:
89 virtual void read_mode(input_buffer_type& input,
90 output_buffer_type& output)
91 = 0;
92
93 protected:
96
102 unsigned int m_count;
103
106 }; // class rle_decoder
107}
108
109#include <claw/rle_decoder.tpp>
110
111#endif // __CLAW_RLE_DECODER_HPP__
A class to help decoding run-length encoded (RLE) streams.
OutputBuffer output_buffer_type
The type of the output buffer.
unsigned int m_count
Case of m_mode :
mode m_mode
Current mode of the decompression.
pattern_type m_pattern
The pattern to repeat.
InputBuffer input_buffer_type
The type of the input buffer.
mode
State of the decompression.
@ stop
Stop the decoding.
@ raw
Next bytes represent raw data.
@ compressed
Next bytes represent compressed data.
Pattern pattern_type
The type of the patterns we will read in the input buffer.
This is the main namespace.