00001 /* 00002 CLAW - a C++ Library Absolutely Wonderful 00003 00004 CLAW is a free library without any particular aim but being useful to 00005 anyone. 00006 00007 Copyright (C) 2005-2008 Julien Jorge 00008 00009 This library is free software; you can redistribute it and/or 00010 modify it under the terms of the GNU Lesser General Public 00011 License as published by the Free Software Foundation; either 00012 version 2.1 of the License, or (at your option) any later version. 00013 00014 This library is distributed in the hope that it will be useful, 00015 but WITHOUT ANY WARRANTY; without even the implied warranty of 00016 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 00017 Lesser General Public License for more details. 00018 00019 You should have received a copy of the GNU Lesser General Public 00020 License along with this library; if not, write to the Free Software 00021 Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA 00022 00023 contact: julien_jorge@yahoo.fr 00024 */ 00030 #ifndef __CLAW_RLE_DECODER_HPP__ 00031 #define __CLAW_RLE_DECODER_HPP__ 00032 00033 namespace claw 00034 { 00053 template< typename Pattern, typename InputBuffer, typename OutputBuffer > 00054 class rle_decoder 00055 { 00056 public: 00058 typedef Pattern pattern_type; 00059 00061 typedef InputBuffer input_buffer_type; 00062 00064 typedef OutputBuffer output_buffer_type; 00065 00066 protected: 00070 enum mode 00071 { 00073 stop, 00074 00076 raw, 00077 00079 compressed 00080 }; // enum mode 00081 00082 public: 00083 rle_decoder(); 00084 virtual ~rle_decoder(); 00085 00086 void decode( input_buffer_type& input, output_buffer_type& output ); 00087 00088 protected: 00089 virtual void read_mode( input_buffer_type& input, 00090 output_buffer_type& output ) = 0; 00091 00092 protected: 00094 mode m_mode; 00095 00101 unsigned int m_count; 00102 00104 pattern_type m_pattern; 00105 }; // class rle_decoder 00106 } // namespace claw 00107 00108 #include <claw/impl/rle_decoder.tpp> 00109 00110 #endif // __CLAW_RLE_DECODER_HPP__