"atomic bomb" commit. Reorganized OpenCV directory structure

modules/highgui/src/bitstrm.hpp

@@ -0,0 +1,182 @@
+/*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.
+//
+//
+//                           License Agreement
+//                For Open Source Computer Vision Library
+//
+// Copyright (C) 2000-2008, Intel Corporation, all rights reserved.
+// Copyright (C) 2009, Willow Garage Inc., 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 the copyright holders 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>
+
+namespace cv
+{
+
+enum
+{
+    RBS_THROW_EOS=-123,  // <end of stream> exception code
+    RBS_THROW_FORB=-124,  // <forrbidden huffman code> exception code
+    RBS_HUFF_FORB=2047,  // forrbidden huffman code "value"
+    RBS_BAD_HEADER=-125, // invalid header
+};
+
+typedef unsigned long ulong;
+
+// class RBaseStream - base class for other reading streams.
+class RBaseStream
+{
+public:
+    //methods
+    RBaseStream();
+    virtual ~RBaseStream();
+    
+    virtual bool  open( const string& filename );
+    virtual bool  open( const Mat& buf );
+    virtual void  close();
+    bool          isOpened();
+    void          setPos( int pos );
+    int           getPos();
+    void          skip( int bytes );
+    
+protected:
+    
+    bool    m_allocated;
+    uchar*  m_start;
+    uchar*  m_end;
+    uchar*  m_current;
+    FILE*   m_file;
+    int     m_block_size;
+    int     m_block_pos;
+    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:
+    virtual ~RLByteStream();
+    
+    int     getByte();
+    int     getBytes( void* buffer, int count );
+    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:
+    virtual ~RMByteStream();
+
+    int     getWord();
+    int     getDWord(); 
+};
+
+// WBaseStream - base class for output streams
+class WBaseStream
+{
+public:
+    //methods
+    WBaseStream();
+    virtual ~WBaseStream();
+    
+    virtual bool  open( const string& filename );
+    virtual bool  open( vector<uchar>& buf );
+    virtual void  close();
+    bool          isOpened();
+    int           getPos();
+    
+protected:
+    
+    uchar*  m_start;
+    uchar*  m_end;
+    uchar*  m_current;
+    int     m_block_size;
+    int     m_block_pos;
+    FILE*   m_file;
+    bool    m_is_opened;
+    vector<uchar>* m_buf;
+    
+    virtual void  writeBlock();
+    virtual void  release();
+    virtual void  allocate();
+};
+
+
+// class WLByteStream - uchar-oriented stream.
+// l in prefix means that the least significant uchar of a multi-byte value goes first
+class WLByteStream : public WBaseStream
+{
+public:
+    virtual ~WLByteStream();
+
+    void  putByte( int val );
+    void  putBytes( const void* buffer, int count );
+    void  putWord( int val );
+    void  putDWord( int val ); 
+};
+
+
+// class WLByteStream - uchar-oriented stream.
+// m in prefix means that the least significant uchar of a multi-byte value goes last
+class WMByteStream : public WLByteStream
+{
+public:
+    virtual ~WMByteStream();
+    void  putWord( int val );
+    void  putDWord( int val ); 
+};
+
+inline unsigned BSWAP(unsigned v)
+{
+    return (v<<24)|((v&0xff00)<<8)|((v>>8)&0xff00)|((unsigned)v>>24);
+}
+
+bool bsIsBigEndian( void );
+
+}
+
+#endif/*_BITSTRM_H_*/