1 /*M///////////////////////////////////////////////////////////////////////////////////////
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5 // By downloading, copying, installing or using the software you agree to this license.
6 // If you do not agree to this license, do not download, install,
7 // copy or use the software.
11 // For Open Source Computer Vision Library
13 // Copyright (C) 2000-2008, Intel Corporation, all rights reserved.
14 // Copyright (C) 2009, Willow Garage Inc., all rights reserved.
15 // Third party copyrights are property of their respective owners.
17 // Redistribution and use in source and binary forms, with or without modification,
18 // are permitted provided that the following conditions are met:
20 // * Redistribution's of source code must retain the above copyright notice,
21 // this list of conditions and the following disclaimer.
23 // * Redistribution's in binary form must reproduce the above copyright notice,
24 // this list of conditions and the following disclaimer in the documentation
25 // and/or other materials provided with the distribution.
27 // * The name of the copyright holders may not be used to endorse or promote products
28 // derived from this software without specific prior written permission.
30 // This software is provided by the copyright holders and contributors "as is" and
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33 // In no event shall the Intel Corporation or contributors be liable for any direct,
34 // indirect, incidental, special, exemplary, or consequential damages
35 // (including, but not limited to, procurement of substitute goods or services;
36 // loss of use, data, or profits; or business interruption) however caused
37 // and on any theory of liability, whether in contract, strict liability,
38 // or tort (including negligence or otherwise) arising in any way out of
39 // the use of this software, even if advised of the possibility of such damage.
53 RBS_THROW_EOS=-123, // <end of stream> exception code
54 RBS_THROW_FORB=-124, // <forrbidden huffman code> exception code
55 RBS_HUFF_FORB=2047, // forrbidden huffman code "value"
56 RBS_BAD_HEADER=-125, // invalid header
59 typedef unsigned long ulong;
61 // class RBaseStream - base class for other reading streams.
67 virtual ~RBaseStream();
69 virtual bool open( const string& filename );
70 virtual bool open( const Mat& buf );
73 void setPos( int pos );
75 void skip( int bytes );
88 virtual void readBlock();
89 virtual void release();
90 virtual void allocate();
94 // class RLByteStream - uchar-oriented stream.
95 // l in prefix means that the least significant uchar of a multi-uchar value goes first
96 class RLByteStream : public RBaseStream
99 virtual ~RLByteStream();
102 int getBytes( void* buffer, int count );
107 // class RMBitStream - uchar-oriented stream.
108 // m in prefix means that the most significant uchar of a multi-uchar value go first
109 class RMByteStream : public RLByteStream
112 virtual ~RMByteStream();
118 // WBaseStream - base class for output streams
124 virtual ~WBaseStream();
126 virtual bool open( const string& filename );
127 virtual bool open( vector<uchar>& buf );
128 virtual void close();
141 vector<uchar>* m_buf;
143 virtual void writeBlock();
144 virtual void release();
145 virtual void allocate();
149 // class WLByteStream - uchar-oriented stream.
150 // l in prefix means that the least significant uchar of a multi-byte value goes first
151 class WLByteStream : public WBaseStream
154 virtual ~WLByteStream();
156 void putByte( int val );
157 void putBytes( const void* buffer, int count );
158 void putWord( int val );
159 void putDWord( int val );
163 // class WLByteStream - uchar-oriented stream.
164 // m in prefix means that the least significant uchar of a multi-byte value goes last
165 class WMByteStream : public WLByteStream
168 virtual ~WMByteStream();
169 void putWord( int val );
170 void putDWord( int val );
173 inline unsigned BSWAP(unsigned v)
175 return (v<<24)|((v&0xff00)<<8)|((v>>8)&0xff00)|((unsigned)v>>24);
178 bool bsIsBigEndian( void );
182 #endif/*_BITSTRM_H_*/