+++ /dev/null
-/*M///////////////////////////////////////////////////////////////////////////////////////
-//
-// IMPORTANT: READ BEFORE DOWNLOADING, COPYING, INSTALLING OR USING.
-//
-// By downloading, copying, installing or using the software you agree to this license.
-// If you do not agree to this license, do not download, install,
-// copy or use the software.
-//
-//
-// Intel License Agreement
-// For Open Source Computer Vision Library
-//
-// Copyright (C) 2000, Intel Corporation, all rights reserved.
-// Third party copyrights are property of their respective owners.
-//
-// Redistribution and use in source and binary forms, with or without modification,
-// are permitted provided that the following conditions are met:
-//
-// * Redistribution's of source code must retain the above copyright notice,
-// this list of conditions and the following disclaimer.
-//
-// * Redistribution's in binary form must reproduce the above copyright notice,
-// this list of conditions and the following disclaimer in the documentation
-// and/or other materials provided with the distribution.
-//
-// * The name of Intel Corporation may not be used to endorse or promote products
-// derived from this software without specific prior written permission.
-//
-// This software is provided by the copyright holders and contributors "as is" and
-// any express or implied warranties, including, but not limited to, the implied
-// warranties of merchantability and fitness for a particular purpose are disclaimed.
-// In no event shall the Intel Corporation or contributors be liable for any direct,
-// indirect, incidental, special, exemplary, or consequential damages
-// (including, but not limited to, procurement of substitute goods or services;
-// loss of use, data, or profits; or business interruption) however caused
-// and on any theory of liability, whether in contract, strict liability,
-// or tort (including negligence or otherwise) arising in any way out of
-// the use of this software, even if advised of the possibility of such damage.
-//
-//M*/
-
-#ifndef _BITSTRM_H_
-#define _BITSTRM_H_
-
-#include <stdio.h>
-
-#define LITTLE_ENDIAN /* intel-like uchar order */
-#ifndef LITTLE_ENDIAN
- #define BIG_ENDIAN /* motorolla-like uchar order */
-#endif
-
-#pragma warning( disable: 4711 )
-
-#define RBS_THROW_EOS -123 /* <end of stream> exception code */
-#define RBS_THROW_FORB -124 /* <forrbidden huffman code> exception code */
-#define RBS_HUFF_FORB 2047 /* forrbidden huffman code "value" */
-
-typedef unsigned char uchar;
-
-// class RBaseStream - base class for other reading streams.
-class RBaseStream
-{
-public:
- //methods
- RBaseStream();
- ~RBaseStream();
-
- virtual bool Open( const char* filename );
- virtual void Close();
- void SetBlockSize( int block_size, int unGetsize = 4 );
- bool IsOpened();
- void SetPos( int pos );
- int GetPos();
- void Skip( int bytes );
-
-protected:
-
- uchar* m_start;
- uchar* m_end;
- uchar* m_current;
- int m_unGetsize;
- int m_block_size;
- int m_block_pos;
- FILE* m_file;
- bool m_is_opened;
-
- virtual void ReadBlock();
- virtual void Release();
- virtual void Allocate();
-};
-
-
-// class RLByteStream - uchar-oriented stream.
-// l in prefix means that the least significant uchar of a multi-uchar value goes first
-class RLByteStream : public RBaseStream
-{
-public:
- int GetByte();
- void GetBytes( void* buffer, int length, int* readed = 0 );
- int GetWord();
- int GetDWord();
-};
-
-// class RMBitStream - uchar-oriented stream.
-// m in prefix means that the most significant uchar of a multi-uchar value go first
-class RMByteStream : public RLByteStream
-{
-public:
- int GetWord();
- int GetDWord();
-};
-
-// class RLBitStream - bit-oriented stream.
-// l in prefix means that the least significant bit of a multi-bit value goes first
-class RLBitStream : public RBaseStream
-{
-public:
- void SetPos( int pos );
- int GetPos();
- int Get( int bits );
- int Show( int bits );
- int GetHuff( const short* table );
- void Move( int shift );
- void Skip( int bytes );
-
-protected:
- int m_bit_idx;
- virtual void ReadBlock();
-};
-
-// class RMBitStream - bit-oriented stream.
-// m in prefix means that the most significant bit of a multi-bit value goes first
-class RMBitStream : public RLBitStream
-{
-public:
- void SetPos( int pos );
- int GetPos();
- int Get( int bits );
- int Show( int bits );
- int GetHuff( const short* table );
- void Move( int shift );
- void Skip( int bytes );
-
-protected:
- virtual void ReadBlock();
-};
-
-
-int* bs_create_source_huffman_table( const uchar* src, int* dst,
- int max_bits, int first_bits );
-bool bs_create_decode_huffman_table( const int* src, short* dst, int max_size );
-void bs_bswap_block( uchar *start, uchar *end );
-
-extern unsigned long bs_bits_masks[];
-
-#endif/*_BITSTRM_H_*/
projects / opencv / blobdiff