dlib C++ Library - entropy_decoder_kernel_c.h

// Copyright (C) 2003 Davis E. King (davis@dlib.net)
// License: Boost Software License See LICENSE.txt for the full license.
#ifndef DLIB_ENTROPY_DECODER_KERNEl_C_
#define DLIB_ENTROPY_DECODER_KERNEl_C_
#include "entropy_decoder_kernel_abstract.h"
#include "../algs.h"
#include "../assert.h"
#include <iostream>
namespace dlib
{
 template <
 typename decoder
 >
 class entropy_decoder_kernel_c : public decoder
 {
 
 public:
 std::istream& get_stream (
 ) const;
 void decode (
 uint32 low_count,
 uint32 high_count
 );
 uint32 get_target (
 uint32 total
 );
 private:
 uint32 _get_target;
 uint32 TOTAL;
 };
// ----------------------------------------------------------------------------------------
// ----------------------------------------------------------------------------------------
 // member function definitions
// ----------------------------------------------------------------------------------------
// ----------------------------------------------------------------------------------------
 template <
 typename decoder
 >
 std::istream& entropy_decoder_kernel_c<decoder>::
 get_stream (
 ) const
 {
 // make sure requires clause is not broken
 DLIB_CASSERT( this->stream_is_set() == true,
 "\tstd::istream& entropy_decoder::get_stream()"
 << "\n\tyou must set a stream for this object before you can get it"
 << "\n\tthis: " << this
 );
 // call the real function
 return decoder::get_stream();
 }
// ----------------------------------------------------------------------------------------
 template <
 typename decoder
 >
 void entropy_decoder_kernel_c<decoder>::
 decode (
 uint32 low_count,
 uint32 high_count
 )
 {
 // make sure requires clause is not broken
 DLIB_CASSERT( (low_count <= _get_target) && (_get_target < high_count) && 
 (high_count <= TOTAL) &&
 (this->stream_is_set() == true) && (this->get_target_called() == true),
 "\tvoid entropy_decoder::decode()"
 << "\n\tRefer to the ensures clause for this function for further information."
 << "\n\tNote that _get_target refers to get_target(TOTAL)" 
 << "\n\tthis: " << this
 << "\n\tlow_count: " << low_count
 << "\n\thigh_count: " << high_count
 << "\n\tTOTAL: " << TOTAL
 << "\n\tget_target(TOTAL): " << _get_target
 << "\n\tis_stream_set(): " << (this->stream_is_set() ? "true" : "false" )
 << "\n\tget_target_called(): " << (this->get_target_called() ? "true" : "false" )
 );
 // call the real function
 decoder::decode(low_count,high_count);
 }
// ----------------------------------------------------------------------------------------
 template <
 typename decoder
 >
 uint32 entropy_decoder_kernel_c<decoder>::
 get_target (
 uint32 total
 )
 {
 // make sure requires clause is not broken
 DLIB_CASSERT( (total > 0) && (total < 65536) && (this->stream_is_set() == true),
 "\tvoid entropy_decoder::get_target()"
 << "\n\tyou must set a stream for this object before you can get the "
 << "\n\rnext target."
 << "\n\tthis: " << this
 << "\n\ttotal: " << total
 );
 // call the real function
 _get_target = decoder::get_target(total);
 TOTAL = total;
 return _get_target;
 }
// ----------------------------------------------------------------------------------------
}
#endif // DLIB_ENTROPY_ENCODER_KERNEl_C_