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CodeStream.h

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00001 // CodeStream.h A class which allows bounds-checked reading from a char array
00002 //
00003 //   Copyright (C) 2007, 2008, 2009, 2010 Free Software Foundation, Inc.
00004 // 
00005 // This program is free software; you can redistribute it and/or modify
00006 // it under the terms of the GNU General Public License as published by
00007 // the Free Software Foundation; either version 3 of the License, or
00008 // (at your option) any later version.
00009 // 
00010 // This program is distributed in the hope that it will be useful,
00011 // but WITHOUT ANY WARRANTY; without even the implied warranty of
00012 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
00013 // GNU General Public License for more details.
00014 // 
00015 // You should have received a copy of the GNU General Public License
00016 // along with this program; if not, write to the Free Software
00017 // Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
00018 
00019 #ifndef GNASH_CODESTREAM_H
00020 #define GNASH_CODESTREAM_H
00021 
00022 #include <string>
00023 #include <boost/utility.hpp>
00024 #include <boost/cstdint.hpp>
00025 #include <istream>
00026 #include <sstream>
00027 
00028 namespace gnash {
00029 
00032 class CodeStreamException { };
00033 
00039 class CodeStream : public std::istream, private boost::noncopyable
00040 {
00041 public:
00042         CodeStream(std::string data): std::istream(new std::stringbuf(data)){
00043                 
00044         }
00045 
00047 boost::uint32_t read_V32();
00048 
00050 boost::uint8_t read_as3op();
00051 
00053 void seekBy(int change);
00054 
00056 void seekTo(unsigned int set);
00057 
00059 boost::int32_t read_S24();
00060 
00062 int8_t read_s8();
00063 
00065 boost::uint8_t read_u8();
00066 
00069 void skip_V32();
00070 
00071 };
00072 
00073 } // namespace gnash
00074 #endif 

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