coco
121 lines
3.0 KiB
C++
121 lines
3.0 KiB
C++
// Copyright (C) 2003 Davis E. King (davis@dlib.net)
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// License: Boost Software License See LICENSE.txt for the full license.
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#ifndef DLIB_BIT_STREAM_KERNEl_1_
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#define DLIB_BIT_STREAM_KERNEl_1_
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#include "bit_stream_kernel_abstract.h"
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#include <iosfwd>
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namespace dlib
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{
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class bit_stream_kernel_1
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{
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/*!
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INITIAL VALUE
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write_mode == false
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read_mode == false
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CONVENTION
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write_mode == is_in_write_mode()
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read_mode == is_in_read_mode()
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if (write_mode)
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{
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osp == pointer to an ostream object
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buffer == the low order bits of buffer are the bits to be
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written
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buffer_size == the number of low order bits in buffer that are
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bits that should be written
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the lowest order bit is the last bit entered by the user
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}
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if (read_mode)
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{
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isp == pointer to an istream object
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buffer == the high order bits of buffer are the bits
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waiting to be read by the user
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buffer_size == the number of high order bits in buffer that
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are bits that are waiting to be read
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the highest order bit is the next bit to give to the user
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}
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!*/
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public:
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bit_stream_kernel_1 (
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) :
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write_mode(false),
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read_mode(false)
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{}
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virtual ~bit_stream_kernel_1 (
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)
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{}
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void clear (
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);
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void set_input_stream (
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std::istream& is
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);
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void set_output_stream (
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std::ostream& os
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);
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void close (
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);
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inline bool is_in_write_mode (
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) const;
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inline bool is_in_read_mode (
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) const;
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inline void write (
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int bit
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);
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bool read (
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int& bit
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);
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void swap (
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bit_stream_kernel_1& item
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);
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private:
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// member data
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std::istream* isp;
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std::ostream* osp;
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bool write_mode;
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bool read_mode;
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unsigned char buffer;
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unsigned short buffer_size;
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// restricted functions
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bit_stream_kernel_1(bit_stream_kernel_1&); // copy constructor
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bit_stream_kernel_1& operator=(bit_stream_kernel_1&); // assignment operator
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};
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inline void swap (
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bit_stream_kernel_1& a,
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bit_stream_kernel_1& b
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);
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// ----------------------------------------------------------------------------------------
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}
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#ifdef NO_MAKEFILE
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#include "bit_stream_kernel_1.cpp"
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#endif
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#endif // DLIB_BIT_STREAM_KERNEl_1_
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